CN220451660U - Top door mechanism and electrical equipment - Google Patents

Abstract

The application discloses top door mechanism includes: a driving device; the ejector piece is rotatably arranged on the base and connected with the driving device, and a plurality of bosses with sequentially increased axial distances from the ejector piece to the rotating shaft are sequentially arranged on the ejector piece along the circumferential direction of the rotating shaft of the ejector piece; the push rod is movably arranged on the base, a plurality of bearing platforms with increased distance from the axis of the rotating shaft are sequentially arranged on the push rod, and the plurality of the bosses are correspondingly arranged with the plurality of bearing platforms; in the process that the driving device drives the ejector piece to rotate, the bosses respectively and sequentially eject the bearing platforms corresponding to the bosses so as to drive the push rod to eject the door body. Also disclosed is an electrical device comprising: the door body is rotationally connected with the main body, and the door pushing mechanism is installed on the main body so as to open the door body.

Description

Top door mechanism and electrical equipment

Technical Field

The application belongs to the technical field of electrical equipment, and particularly relates to a top door mechanism 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 ensure the refrigerating performance of the refrigerator, a soft door seal with a magnetic stripe is usually arranged between a door body and a main body of the refrigerator and is used for being in contact seal with the main body and keeping a certain adsorption force, so that stable and good surface contact sealing performance is realized. However, due to the magnetic adsorption force and the negative pressure in the internal space of the main body, certain resistance exists when the door is opened, and the door can be opened by 40-70N force, so that certain difficulty is brought, and the operation is more inconvenient; especially for the old, children, patient etc. crowd, not only the operation degree of difficulty is big, still has certain security risk.

Disclosure of Invention

The door opening device aims at solving the technical problems that door opening operation of electrical equipment is inconvenient, efficiency is low and safety risks exist to a certain extent. To this end, the present application provides a top door mechanism and an electrical device.

In a first aspect of embodiments of the present application, there is provided a top door mechanism, including:

a driving device;

the ejector piece is rotatably arranged on the base and connected with the driving device, and a plurality of bosses with sequentially increased axial distances from the ejector piece to the rotating shaft are sequentially arranged on the ejector piece along the circumferential direction of the rotating shaft of the ejector piece;

the push rod is movably arranged on the base, a plurality of bearing platforms with increased distance from the axis of the rotating shaft are sequentially arranged on the push rod, and the plurality of the bosses are correspondingly arranged with the plurality of bearing platforms;

in the process that the driving device drives the ejector piece to rotate, the bosses respectively and sequentially eject the bearing platforms corresponding to the bosses so as to drive the push rod to eject the door body.

According to the door pushing mechanism, the rotatable pushing piece and the movable push rod are arranged on the base, and the pushing piece rotates under the driving of the driving device and pushes the push rod to implement door pushing operation, so that automatic door opening is achieved. A plurality of bosses with increased axial distances are sequentially arranged on the ejector piece along the circumferential direction of the rotating shaft and are used as ejector parts; correspondingly, a plurality of bearing platforms with sequentially increased distances from the axis of the rotating shaft are arranged on the push rod and correspond to the bosses; in the process that the ejector is driven to rotate by the driving device, the plurality of bosses sequentially and correspondingly eject the plurality of bearing platforms, so that the push rod is continuously ejected. Under the condition that the output torque of the driving device is fixed, the bearing platform can be pushed through the boss with the minimum distance from the axle center, at the moment, the arm of force is minimum, so that the applied thrust is maximum, the door body can be pushed with larger thrust, the door opening resistance can be broken through with stable and reliable thrust, and the door body can be pushed conveniently and efficiently; meanwhile, under the condition of certain driving output power, the rotating speed of the rotating shaft is basically kept at a constant speed, along with the increase of the distance from the boss to the axis of the rotating shaft, the pushing force arm at the boss part continuously pushed on the pushing piece is gradually increased, and the corresponding linear speed is also gradually increased, so that the push rod is accelerated to push the door, and the door body is efficiently pushed. Therefore, in the whole automatic door opening process, the door opening resistance is broken through by larger thrust force to push the door body to a preset opening degree, the door opening difficulty is reduced as a whole, the door opening efficiency is improved, and the operation safety risk is reduced.

In some embodiments, in the direction that the push rod moves to push the door body, the distances from the bearing platforms to the axes of the rotating shafts sequentially increase from the bearing platform pushed by the boss first.

In some embodiments, in a direction perpendicular to the direction in which the push rod moves to push the door body, the distances from the plurality of platforms to the pushing piece increase sequentially from the platform that is pushed by the boss first.

In some embodiments, the distance from the plurality of bearing platforms to the ejector is in an arithmetic progression in the direction in which the push rod moves to eject the door body.

In some embodiments, in a direction in which the pushing member rotates to push the push rod to push the door body, distances between the bosses and the axis of the rotating shaft sequentially increase.

In some embodiments, the included angle between the adjacent two bosses and the axis of the rotating shaft is a first included angle, and the adjacent two first included angles are equal.

In some embodiments, the ejector comprises a drive gear, and the plurality of bosses are disposed on a disk face of the drive gear.

In some embodiments, the top door mechanism further comprises a reset member connected between the push rod and the base, so that the push rod can be reset under the action of the restoring force of the reset member.

In some embodiments, the drive device further comprises a shock mount and a shock absorber;

the damping seat is arranged on the base and positioned at the end of the moving stroke of the push rod so as to buffer and damp the reset impact of the push rod;

the damping piece is arranged at the top door end of the push rod.

In some embodiments, the base is provided with a linear guide rail, the push rod is provided with a chute, and the chute is slidably sleeved on the linear guide rail, so that the push rod pushes the door body along a linear track.

In some embodiments, the top door mechanism further comprises a clutch device connected between the drive device and the ejector to establish or disconnect the drive device from the ejector.

In another aspect of the embodiments of the present application, there is further provided an electrical apparatus, including: the door body is movably connected with the main body, and the door pushing mechanism is arranged on the main body so as to open the door body.

The electrical equipment that this application embodiment provided adopts above-mentioned top door mechanism to a certain extent, promotes convenience and efficiency that opens the door to reduce the security risk.

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 structural diagram of a top door mechanism according to an embodiment of the present application;

FIG. 2 shows a schematic structural view of an ejector of the overhead door mechanism of FIG. 1;

FIG. 3 shows a schematic structural view of a push rod of the overhead door mechanism of FIG. 1;

FIG. 4 is a schematic view showing an assembled state of the ejector and in-place detection assembly of the overhead door mechanism of FIG. 1;

FIG. 5 shows a schematic structural view of the clutch device of the top door mechanism of FIG. 1;

FIG. 6 shows a schematic view of the clutching device of FIG. 5 in an exploded condition;

FIG. 7 is a schematic view showing an exploded view of the clutch device of FIG. 6 from another perspective;

fig. 8 shows a schematic structural view of a first transmission member of the clutch device of fig. 5;

fig. 9 shows a schematic structural view of a second transmission member of the clutch device of fig. 5;

FIG. 10 is a schematic view of another perspective construction of a second transmission member of the clutch device of FIG. 9;

FIG. 11 shows a schematic structural view of a drive connection of the clutch device of FIG. 5;

FIG. 12 is a schematic diagram illustrating another view of the drive connection of the clutch device of FIG. 7;

FIG. 13 is a schematic diagram showing the connection of a drive connection to a second drive member in the clutch arrangement of FIG. 5;

fig. 14 is a schematic perspective view showing an assembled state of the clutch device of fig. 5;

FIG. 15 is a front view of the clutch device of FIG. 14;

FIG. 16 is a first perspective cross-sectional view of the clutch of FIG. 14;

FIG. 17 is a second perspective cross-sectional view of the clutch of FIG. 14;

fig. 18 shows a schematic structural view of a refrigerator provided in an embodiment of the present application.

Reference numerals:

10-top door mechanism, 11-main body, 12-door body;

100-base;

200-driving device, 210-motor, 220-worm and 230-gear set;

300-clutch device, 310-first transmission part, 311-clamping groove, 311 a-pushing top surface, 311 b-reverse pushing inclined surface, 311 c-groove bottom, 320-second transmission part, 321-clamping hole, 322-shaft barrel, 323-accommodating groove, 324-stop boss, 330-transmission connecting part, 331-mounting seat, 331 a-first shaft hole, 331 b-avoidance groove, 331 c-limit groove, 332-connecting arm, 332 a-pushed surface, 332 b-pushing inclined surface, 332 c-top surface, 340-elastic pushing part, 350-baffle, 351-avoidance notch, 352-locking groove, 353-second shaft hole, 360-locking part, 361-stop washer, 370-mounting shaft;

400-ejector, 410-transmission gear, 411-boss and 420-rotating shaft;

500-push rod, 510-rod body, 511-chute, 512-bearing platform, 513-top door end, 520-shock absorbing piece, 530-shock absorbing seat and 540-reset piece;

600-in-place detection component, 610-travel switch, 620-contact part, 630-shifting fork and 640-return spring.

Detailed Description

The following description of the embodiments of the present utility model 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 embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all the directional indicators in the embodiments of the present utility model 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 utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; 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 above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. 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 considered to be absent and not within the scope of protection claimed in the present utility model.

Refrigerators are widely used in various fields as common electrical equipment, and should have good sealing performance in order to maintain a refrigerating effect. For this reason, a sealing structure, such as a sealing rubber strip, a magnetic adsorption mechanism, etc., is generally provided between the door body and the main body for maintaining contact sealing performance and stability of a sealing state between the door body and the main body. However, the difficulty of opening the door body is increased to a certain extent, so that the door opening operation is inconvenient, the opening operation efficiency is low, and the safety risk of main body dumping exists.

For this embodiment of this application provides a top door mechanism and electrical equipment, can solve the door body to a certain extent at least and open the inconvenient operation, and inefficiency and have the technical problem of certain security risk to can improve the efficiency that the door body was opened, convenience and security.

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

fig. 1 shows a schematic structural diagram of a top door mechanism according to an embodiment of the present application; FIG. 2 shows a schematic structural view of an ejector of the overhead door mechanism of FIG. 1; FIG. 3 shows a schematic structural view of a push rod of the overhead door mechanism of FIG. 1; fig. 4 is a schematic view showing an assembled state of the ejector and the in-place detecting assembly of the top door mechanism in fig. 1. Referring to fig. 1, 2, 3, and 4, some embodiments of the present application provide a top door mechanism that may include a driving device 200, an ejector 400, and a push rod 500; the driving device 200 uses the ejector 400 as a transmission mechanism, and drives the push rod 500 to move along a set track to eject the door until the door is ejected to a set opening.

The ejector 400 is rotatably arranged on the base 100 through a rotating shaft 420, is connected with the driving device 200, and rotates under the driving of the driving device 200; the push rod 500 is movably disposed on the base 100 as an element for directly pushing the door body, and is connected to the pushing member 400, so that the rotating pushing member 400 drives the push rod 500 to move along a set track and push the door body until the door body is pushed to a set opening degree under the driving of the driving device 200.

In some embodiments, a boss 411 may be provided on the ejector 400 as a pushing portion, and a bearing platform 512 is correspondingly provided on the push rod 500 as a pushed portion, so that the bearing platform 512 is pushed by the boss 411 to push the push rod to move.

Considering that the initial door opening resistance of the door body of the refrigerator and other electrical equipment is large, the resistance is rapidly reduced after a certain angle is jacked, and the safety risk of door opening is increased when the door body is jacked in the whole process with large force; for this purpose, the number of the bosses 411 may be set to be plural, and the plural bosses 411 are arranged at intervals along the circumferential direction of the rotation shaft 420, wherein the distances from the plural bosses 411 arranged along the circumferential direction of the rotation shaft to the axial center of the rotation shaft 420 are sequentially increased, so that the arm length of the pushing force of each boss 411 when pushing the bearing platform 512 is sequentially increased; in the case that the power output by the driving device 200 is substantially consistent, the moment output to the ejector 400 is also substantially consistent, and since the moment is the product of the moment arm and the acting force, the ejector acting force acting on the bearing platform 512 is maximum when the moment arm is minimum; when the door body is pushed, one of the plurality of bosses 411 closest to the axis of the rotating shaft 420 can be pushed against the bearing platform 512 first to obtain the relatively maximum pushing force, so as to break through the door opening resistance stably and reliably, reduce the door opening difficulty and improve the door opening efficiency.

Since the distances from the plurality of bosses 411 to the axis of the rotating shaft 420 are different, the plurality of bearing platforms 512 can be also arranged in plurality, and the distances from the plurality of bearing platforms 512 to the axis of the rotating shaft 420 are correspondingly increased to correspond to the plurality of bosses 411, so that the plurality of bosses 411 respectively push the corresponding bearing platforms 512 in sequence in the process of rotating the push rod 500 by the push member 400, thereby continuously pushing the door body.

In the process that the plurality of bosses 411 sequentially push the bearing platform 512 along the circumferential direction of the rotating shaft 420, the push force arm sequentially increases, and the push acting force is correspondingly reduced, so that excessive continuous push acting force can be avoided, the door body is pushed in an excessively accelerated manner, the door body is caused to collide with surrounding people or environment with great force, and the safety risk of severe vibration is caused.

Meanwhile, under the condition that the output power of the driving device 200 is relatively stable, the rotating speed of the ejector 400 is correspondingly stable, and under the condition that the linear speed of the rotating piece is equal to the product of the rotating speed and the rotating radius, the linear speed of each boss 411 is different, and as the axial distance to the rotating shaft 420 is larger, the linear speeds of the bosses 411 along the circumferential direction of the rotating shaft 420 are sequentially increased, the ejector speed of the push rod 500 is correspondingly increased, namely, the door body can be ejected at a high speed, and the effect of conveniently and efficiently opening the door is achieved.

According to the door pushing mechanism provided by the embodiment of the application, the initial large-force door pushing is realized through the plurality of bosses which are sequentially increased from the axial center distance of the rotating shaft 420 along the circumferential direction of the rotating shaft 420 on the rotating pushing piece 400, the door opening resistance is broken through, the door body is pushed open, then the door opening operation is automatically carried out on the door body at a high speed, and the operation process is convenient, efficient, stable and safe.

In some embodiments, the rotational pushing direction of the ejector 400, the arrangement direction of the boss 411, and the pushing direction of the push rod 500 may be matched to achieve both efficient door pushing and convenient installation. In the automatic door opening process, in the direction that the pushing piece 400 rotates to push the pushing rod 500 to push the door body, the distances from the plurality of bosses 411 to the axle center of the rotating shaft 420 are sequentially increased; that is, the direction of the door body is set in which the rotating push rod 500 of the ejector 400 pushes the platform 512 on the push rod 500, and the bosses 411 close to the axis of the rotating shaft 420 among the bosses 411 are contacted with the platform 512 on the push rod 500 from the boss 411 closest to the axis of the rotating shaft 420, and then the bosses 411 along the direction of increasing the distance from the axis of the rotating shaft 420 are sequentially connected with the corresponding platforms 512 on the push rod 500 until the push rod 500 reaches the set maximum stroke position.

In some embodiments, in order to match the arrangement positions and the rotation tracks of the plurality of bosses 411, the arrangement positions of the plurality of platforms 512 may be set in such a manner that the axial distances to the rotating shaft 420 are sequentially increased in a direction away from the top door end 513 of the push rod 500, that is, in a direction opposite to the direction in which the push rod 500 moves to push the door body, and the platform 512 that is first pushed by the boss 411 is closest to the push member 400, so that each platform 512 is correspondingly connected to one boss 411, thereby realizing stable connection in structure; that is, the bearing platforms 512 closest to the axis of the rotating shaft 420 are correspondingly connected to the boss 411 closest to the axis of the rotating shaft 420, and then the connection and ejection operations of all the bearing platforms 512 and the boss 411 are sequentially realized in a one-to-one correspondence manner.

In some embodiments, the distance from the plurality of platforms 512 to the ejector 400 increases in sequence in a direction away from the ejector 400, i.e., perpendicular to the direction in which the ejector 500 moves the ejector gate, and the platform 512 that is first pushed by the boss 411 is closest to the ejector 400, so as to sequentially mate with and receive the plurality of bosses 411 that are adjacent to the ejector 500 during rotation of the ejector 400.

In some embodiments, the distances from the plurality of platforms 512 to the ejector 400 may be arranged in an arithmetic progression in a direction approaching the top door end 513 of the push rod 500, i.e., in a direction in which the push rod 500 moves the ejector door body; that is, the plurality of caps 512 are arranged at equal intervals in a direction approaching the top door end 513 of the push rod 500, so that the engagement stability between the caps 512 and the boss 411 is maintained to a certain extent, and the impact of improper arrangement of the gaps between the caps 512 on the ejection effect is avoided.

In some embodiments, in order to improve the ejection stability of the ejector 400, the plurality of bosses 411 may be disposed at equal intervals in the circumferential direction of the rotating shaft 420, that is, the included angle between any two adjacent bosses 411 of the plurality of bosses 411 and the connecting line of the axis of the rotating shaft 420 is the first included angle, and the two adjacent first included angles are equal. Thereby enabling the plurality of bosses 411 to contact the ejector pins 500 at a relatively stable frequency; the bearing platforms 512 which are equally spaced in a direction away from the top door end 513 of the push rod 500 can be further matched, so that stable and reliable pushing operation can be realized.

In some embodiments, to reduce the size of the device structure to a certain extent, the ejector 400 may be configured as a transmission gear 410, and a plurality of bosses 411 may be disposed on the disc surface of the transmission gear 410, where the transmission gear 410 is connected to the driving device 200 by way of tooth engagement, so as to achieve a compact and flat transmission connection; meanwhile, the part of the bearing platform 512 of the push rod 500 can be arranged above the transmission gear 410 by using the mode that the boss 411 and the transmission gear 410 are staggered up and down and is matched with the boss 411, so that the distance between the push rod 500 and the ejector 400 can be reduced to a certain extent, and the whole small-specification arrangement is realized.

Referring to fig. 1 and 2, in some embodiments, the driving apparatus 200 may include a motor 210, a worm 220, and a gear set 230, the worm 220 being connected to an output shaft of the motor 210 and to the gear set 230, and the gear set 230 being connected to a transmission gear 410, simplifying a transmission structure.

Referring to fig. 3 and 4, in some embodiments, in order to maintain stability of the pushing operation, the moving track of the push rod 500 may be set to be a straight line, i.e., the door body is pushed along the straight line. Correspondingly, a linear guide 110 may be disposed on the base 100, and a sliding groove 511 may be disposed on the rod body 510 of the push rod 500, where the linear guide 110 is embedded in the sliding groove 511, so as to guide the pushing operation of the push rod 500 along a straight line.

In some embodiments, to maintain the stability of the abutment between the platform 512 and the boss 411, a restoring member 540 may be connected between the push rod 500 and the base 100, and based on the base 100, a restoring force of the restoring force may be continuously applied to the rod body 510 of the push rod 500, so that the push rod 500 may be restored under the restoring force of the restoring member 540.

Under the action of restoring force, a certain degree of pressure is always kept between the bearing platform 512 and the boss 411, so that the bearing platform and the boss are kept in stable abutting connection, and the stability of the ejection state is ensured.

Referring to fig. 1, in order to reduce damage of the push rod 500 to the door body, a shock absorbing member 520 may be provided at the top door end of the push rod 500; the shock-absorbing rubber sleeve, the rubber pad and the like can be specifically adopted to buffer impact and vibration.

A shock mount 530 may also be provided on the base 100 and may be provided at the end of the stroke of the push rod to attenuate the impact of the push rod 500 and reduce vibration and noise when the push rod 500 is reset.

Referring to fig. 1 and 4, in some embodiments, the top door mechanism is further provided with a home detection assembly 600 coupled to the driving device 200 to detect a rotational home signal of the ejector 400 or the push rod 500, and control the operation of the driving device 200.

In some embodiments, the in-place signal of the boss 411 on the ejector 400 can be detected by the in-place detecting component 600 to determine the in-place condition of the ejector 400, and control the driving device to stop.

In some embodiments, the in-place detection assembly 600 may detect an in-place signal of one of the bosses 411 furthest from the axis of the shaft 420 as a trigger signal.

In the initial state, the in-place detection assembly 600 abuts against the boss 411, the driving device 200 stands by, when the upstream control signal indicates automatic door opening, the driving device 200 acts to drive the push rod 500 to push the door body to the in-place state, all the bosses 411 are not abutted against the push rod 500, and the push rod 500 is reset under the action of the reset piece 540. In the process, one boss 411 farthest from the axis of the rotating shaft 420 is out of position in a rotating way, and the state of the detection signal of the in-place detection assembly 600 jumps until the driving device 200 is stopped and the door lifting mechanism is in standby after one boss 411 farthest from the axis of the rotating shaft 420 is reset to trigger the in-place detection assembly 600.

In some embodiments, the in-place detection assembly 600 may include a travel switch 610, a fork 630, and a return spring 640; the shifting fork 630 is arranged on the base 100 in a deflectable way, one end of the shifting fork 630 is connected with the contact part 620 of the travel switch 610 in a matched way, and the other end of the shifting fork 630 is arranged at a position of a boss 411 farthest from the axis of the rotating shaft 420 in a accompany way, so that the contact part 620 is triggered when the boss 411 pushes the shifting fork 630, and the travel switch 610 is triggered; the return spring 640 is connected between the fork 630 and the base 100 to provide a stable elastic force, so that the fork 630 can be stably connected to the contact part 620 to stably detect the swing of the fork 630.

Referring to fig. 1, in some embodiments, the top door mechanism is further provided with a clutch device 300 connected between the driving device 200 and the ejector 400 to establish or disconnect the connection of the driving device 200 and the ejector 400; the connection between the driving device 200 and the ejector 400 can be disconnected when needed, and the driving device 200 and the ejector 400 are separated, so that the mechanical structures of the driving device 200 and the top door mechanism are prevented from being damaged by external interference.

FIG. 5 is a schematic structural view of a clutch device according to an embodiment of the present disclosure; FIG. 6 shows a schematic view of the clutching device of FIG. 5 in an exploded condition; FIG. 7 is a schematic view showing an exploded view of the clutch device of FIG. 6 from another perspective; fig. 14 is a schematic perspective view showing an assembled state of the clutch device of fig. 5; fig. 15 is a front view of the clutch device of fig. 14. Referring to fig. 5, 6, 7, 14, and 15, in some embodiments, the clutch device 300 may include a first transmission 310, a second transmission 320, and a transmission connection 330; the first transmission member 310 is coaxially and rotatably connected to the second transmission member 320 on the base 100, the transmission connection member 330 is connected to the second transmission member 320, and the transmission connection member 330 is detachably connected to the first transmission member 310. Thus, in a state where the transmission link 330 is kept connected to the first transmission member 310, the second transmission member 320 and the first transmission member 310 will keep moving synchronously; when the second transmission member 320 has a tendency to move relative to the first transmission member 310, the first transmission member 310 may push the transmission connection member 330 away from the first transmission member 310, thereby finally disconnecting the first transmission member 310 and the second transmission member 320, so that the first transmission member 310 and the second transmission member 320 do not move synchronously any more, and the transmission path of the transmission structure is cut off.

The first transmission member 310 is connected to the driving device 200, and the second transmission member 320 is connected to the ejector 400 to maintain or cut off a transmission connection path between the driving device 200 and the ejector 400 by the clutch device 300.

When the second transmission member 320 has a tendency to rotate relative to the first transmission member 310, the first transmission member 310 will push the transmission connecting member 330 out of the first transmission connecting member 310 to disconnect the first transmission member 310 from the second transmission member 320, so that the first transmission member 310 will not follow rotation to isolate the upstream driving device from the downstream functional mechanism, avoid damaging the driving device, and reduce mechanical damage to the downstream functional mechanism to some extent.

In some embodiments, the clutch device 300 adopts a mechanically adaptive separation structure, and the transmission connection member 330 and the first transmission member 310 are cooperatively designed to track the motion state of the first transmission member 310 and the second transmission member 320, so as to enable the first transmission member 310 to push the transmission connection member 330 to separate when the second transmission member 320 tends to rotate relative to the first transmission member 310, so as to adaptively cut off the adaptive separation operation of the connection between the first transmission member 30 and the second transmission member 320.

A pushed surface 332a may be disposed on the transmission connection member 330, and the pushed surface 332a abuts against the first transmission member 310, so that when the driving device 200 drives the first transmission member 310 to rotate, the pushed surface 332a can push the transmission connection member 330, so that the transmission connection member 330 and the second transmission member 320 connected therewith can rotate along with the first transmission member 310, keep the coupling of the rotation path, and output driving torque to the downstream functional mechanism.

The pushing inclined surface 332b opposite to the pushed surface may be further disposed on the driving connection member 330, when the second driving member 320 and the first driving member 310 have a tendency to move relatively, the pushing inclined surface 332b abuts against the first driving member 310, and a pushing force for eliminating the tendency of the first driving member 310 and the second driving member 320 to move relatively is formed between the pushing inclined surface 332b and the first driving member 310, and the pushing force is approximately perpendicular to the pushing inclined surface 332b, at this time, there is a component of pushing the driving connection member 330 away from the first driving member 310, so that the driving connection member 330 is pushed to separate from the first driving member 310 in a self-adapting manner, so as to finally urge the driving connection member 330 to separate from the first driving member 310, and cut off the connection between the first driving member 310 and the second driving member 320.

Fig. 11 is a schematic structural view of a driving connection member in the clutch device, and fig. 12 is another schematic view of the driving connection member in fig. 11. Referring to fig. 11 and 12, in some embodiments, the drive connection 330 may include a mount 331 and a plurality of connection arms 332 disposed on the mount 331; the pushed surface 332a and the pushing inclined surface 332b are disposed on the connecting arm 332 respectively, and are located on two different sides. When the second transmission member 320 and the first transmission member 310 rotate synchronously, the side of the pushed surface 332a bears the pushing force of the first transmission member 310, and the transmission connection member 330 drives the second transmission member 320 to rotate; when the second transmission member 320 tends to rotate relative to the first transmission member 310, the side of the pushing inclined surface 332b actively pushes the first transmission member 310 and bears the reverse thrust of the first transmission member 310, so that the transmission connecting member 330 is gradually separated from the first transmission member 310, and then the second transmission member 320 is disconnected from the first transmission member 310.

Fig. 8 shows a schematic structural view of a first transmission member of the clutch device of fig. 5, and fig. 17 shows a cross-sectional view of the clutch device. Referring to fig. 8 and 17, in some embodiments, in order to achieve the detachable connection between the transmission connection member 330 and the first transmission member 310 and ensure the stability of the connection state and the smoothness of the separation operation, a clamping slot 311 may be formed on the first transmission member 310 to accommodate the connection portion of the transmission connection member 330 pair; wherein, the inner wall of the matching supporting pushing surface 332a is disposed in the clamping groove 311 for correspondingly pushing the transmission connecting piece 330; and the pushing inclined surface 332b may be further abutted against the notch of the clamping groove 311 at least in a partial area, so that when the second transmission member 320 rotates relative to the first transmission member 310, the pushing inclined surface 332b directly pushes the notch of the clamping groove 311 to rapidly separate from the clamping groove 311, and the transmission connection member 330 is disconnected from the first transmission member 310.

In some embodiments, since the first transmission member 310 and the second transmission member 320 are coaxially disposed, the clamping groove 311 may be disposed on a side of the first transmission member 310 close to the second transmission member 320, so that a stroke required for moving the transmission connection member 330 to connect and disconnect the transmission connection member 330 from the clamping groove 311 is shorter, and an efficiency of connecting and disconnecting the transmission connection member 330 from the clamping groove 311 can be improved to some extent.

In some embodiments, in order to achieve both connection and separation reliability of the transmission connection member 330 and the clamping groove 311, a reverse pushing inclined surface 311b adapted to the push inclined surface 332b may be formed in the clamping groove 311, and when the second transmission member 320 has a tendency to rotate relatively to the first transmission member 310, the push inclined surface 332b abuts against the reverse pushing inclined surface 311b and further moves relatively along the inclined surface direction, so that the transmission connection member 330 moves along the direction separating from the first transmission member 310 until the transmission connection member 330 is separated from the clamping groove 311.

The surface contact error of the push inclined surface 332b and the reverse inclined surface 311b can keep the stability of the stress and the moving direction of the transmission connecting piece 330 to a certain extent, so that the first transmission piece 310 can be separated stably and reliably.

In some embodiments, the push ramp 332b and the reverse ramp 311b may be arcuate ramps, which improve the smoothness of the relative sliding to some extent.

Fig. 9 shows a schematic structural view of a second transmission member 320 of the clutch device of fig. 5; fig. 10 is a schematic structural diagram of the second transmission member 320 in fig. 9 from another view. Referring to fig. 9 and 10, in some embodiments, a clamping hole 321 may be provided on the second transmission member 320, and the transmission connection member 330 may be movably disposed in the clamping hole 321 and may movably extend out of the clamping hole 321 to connect the first transmission member 310, so as to realize synchronous rotation of the first transmission member 310 and the second transmission member 320; and can move back to the clamping hole 321 to disconnect the first transmission member 310.

Fig. 13 shows a schematic diagram of the connection of the drive connection to the second drive member in the clutch arrangement of fig. 5. Referring to fig. 9, 10, 11, 12 and 13, in some embodiments, the transmission connector 330 may include at least one connecting arm 332 disposed on the mounting base 331, where the connecting arm 332 is movably disposed through the card hole 321 and may extend out of the card hole 321 to connect with the first transmission member 310; accordingly, the pushed surface 332a and the push inclined surface 332b may be provided on the connecting arm 332.

FIG. 17 is a second perspective cross-sectional view of the clutch of FIG. 14; in some embodiments, the shape of the connecting arm 332 and the slot shape of the slot 311 may be designed to match, so that the connecting arm 332 is embedded into the slot 311, and the connecting arm 332 and the slot 311 are stably connected and can be smoothly separated from the slot 311.

The pushed surface 332a and the push inclined surface 332b are provided on two opposite side surfaces of the link arm 332, respectively, and may be provided on two side surfaces in the circumferential direction along which the first transmission member 310 rotates. Correspondingly, the positions of the pushing surface 311a and the reverse pushing inclined surface 311b are matched, so that the transmission connecting piece 330 can rotate along with the first transmission piece 310 under the pushing of the pushing surface 311a of the first transmission piece 310, and can also be separated from the clamping groove 311 under the pushing of the reverse pushing inclined surface 311 b.

In some embodiments, a top surface 332c may be disposed at the top end of the connecting arm 332, opposite to the groove bottom 311c of the clamping groove 311, and in a state where the pushed surface 332a abuts against the pushing surface 311a, the top surface 332c may also abut against the groove bottom 311c, so that a limit is achieved through two surface contact positions, and stability of the connection state is ensured.

In some embodiments, the number of the connecting arms 332 may be three or more, and the connecting arms are disposed on the mounting base at equal intervals, so that at least three separable connecting portions can be formed between the first transmission member 310 and the transmission connecting member, so as to ensure stability of a connection state, and also ensure balance of stress when the connecting arms 332 are separated, and ensure smoothness and smoothness of separation.

In some embodiments, the mounting seat may be disposed on a side of the second transmission member 320 away from the first transmission member 310, so as to avoid occupying a gap between the first transmission member 310 and the second transmission member 320, so that the first transmission member 310 and the second transmission member 320 can be arranged in a short distance, and a smaller gap is provided, so that the first transmission member 310 and the second transmission member 320 can be kept in a substantially parallel state in a rotation plane, attitude defects such as head tilting and single-side deflection are avoided, and transmission quality is ensured.

In other embodiments, the mounting base 321 may be disposed between the first transmission member 310 and the second transmission member 320, and the connecting arms 320 are disposed on two sides of the mounting base 321 to connect the first transmission member 310 and the second transmission member 320 respectively. And are also movably disposed in the card slot 311 and the card hole 321, respectively.

Referring to fig. 5, 6 and 7, in some embodiments, the clutch device 300 further includes an elastic ejector 340 connected to the transmission connector 330 to apply an elastic force to the transmission connector 330 to maintain the transmission connector 330 stably connected to the first transmission member 310, and to elastically absorb a reverse thrust of the first transmission member 310 when the transmission connector 330 is separated from the first transmission member 310, so that the first transmission member 310 can be smoothly separated, thereby achieving both stable connection and flexible separation of the transmission connector 330 from the first transmission member 310.

Referring to fig. 5, 14, 15 and 16, in some embodiments, among the first and second driving members 310 and 320 coaxially disposed on the base 100, the second driving member 320 may be disposed closer to the base 100, and the elastic push member 340 may be connected between the base 100 and the second driving member 320, applying elastic push force to the driving connection member 330 based on the base 100, maintaining the driving connection member 330 stably connected to the second driving member 320, and maintaining the detachable connection with the first driving member 310.

Referring to fig. 16 and 17, in some embodiments, considering that the second transmission member 320 may rotate relative to the base 100, to avoid the relative rotation from adversely affecting the structural configuration and function of twisting the traction resilient push member 340, the resilient push member 340 may be connected between the second transmission member 320 and the mounting seat 331 such that the resilient push member 340 follows the movement of the second transmission member 320 without being directly connected with the base 100; accordingly, the elastic ejector 340 applies elastic force to the mount 331 based on the second transmission member 320.

In some embodiments, a baffle 350 may be provided on the second transmission member 320 and connected to the elastic ejector 340 to serve as a basis for installation and force application of the elastic ejector 340. The specific setting position of the baffle 350 can be flexibly set according to actual needs.

In some embodiments, in order to maintain the stability of the movable connection between the transmission connection member 330 and the second transmission member 320, an accommodating groove 323 may be formed on a side of the second transmission member 320 close to the base 100, for accommodating the mounting seat 331 of the transmission connection member 330, and the clamping hole 321 may be formed at a bottom of the accommodating groove 323, and the accommodating groove 323 is communicated with a side of the second transmission member 320 away from the base 100, so that the connecting arm 332 may be inserted into the clamping hole 321 and extend out of the clamping hole 321 to connect the first transmission member 310. Correspondingly, the elastic ejector 340 may be connected to the mounting seat 331 to apply elastic pushing force, so that the mounting seat 331 is stably maintained in the accommodating groove 323, avoiding detachment, and maintaining the stability of the connection state.

In some embodiments, the elastic ejector 340 may also be disposed in the receiving groove 323, and the receiving groove 323 is used to protect the elastic ejector 340, thereby reducing the risk of interference of external structures or impurities with the function of the elastic ejector 340.

Referring to fig. 14, 16 and 17, in some embodiments, the baffle 340 may be disposed in the accommodating groove 323 to block the notch of the accommodating groove 323, and the mounting seat 331 and the elastic ejector 340 may be integrally enclosed in the accommodating groove 323 and the baffle 350 to form a groove cavity, so as to maintain the structural form and the positional stability of the elastic ejector 340 and the mounting seat 331, and further reduce the influence of external interference factors.

In some embodiments, the baffle 350 may be attached to the outer side of the receiving groove 323, or the baffle 350 may be installed in the receiving groove 323, which may be flexibly selected.

In the case where the barrier 350 is disposed in the receiving groove 323, in order to facilitate the installation of the barrier, a stopper boss 324 may be disposed on the second transmission member 320, and the stopper boss 324 may be disposed on and protrude from the inner wall of the groove of the receiving groove 323. When the shutter 350 is installed in the receiving groove 323, the shutter 350 may be placed on the stopper boss 324 and bear the installation elastic ejector 340.

In some embodiments, a locking groove 352 may be further formed on the baffle 350 for receiving the snap-fit stop boss 324, such that when the baffle 350 is mounted in the receiving groove 323, the stop boss 324 snaps into the locking groove 352 to keep the position of the baffle 350 stable and rotate along with the second transmission member 320, avoiding relative rotation.

The locking groove 352 may be specifically disposed at a side of the barrier 350 away from the elastic ejector 340, so that the barrier 350 is stably pressed against the stopper boss 324 under the elastic force of the elastic ejector 340.

In some embodiments, to avoid entry of debris into the receiving recess 323, the baffle 350 may be configured to mate with the channel of the receiving recess 323 to fill the notch of the blocking receiving recess 323, reducing the assembly clearance.

Considering that the stop boss 324 protrudes from the sidewall of the receiving groove 323 to form an obstacle to the insertion of the barrier 350 into the receiving groove, an escape notch 351 may be provided at the outer edge side of the barrier 350, and the escape notch 351 may be aligned with the stop boss 324 and then correspondingly inserted into the receiving groove 323 when the barrier 350 is installed, and then the barrier 350 is rotated such that the stop boss 324 is inserted into the locking groove 352 to lock the barrier 350. The escape recesses 351 may be disposed at the outer edge side of the barrier 350 at equal intervals from the locking grooves 352.

In some embodiments, more than three stop bosses 324 may be provided, and the stop bosses 324 and the stop bosses 351 may be equally spaced on the inner wall of the accommodating groove 324, and accordingly, the avoidance notches 351 may be provided in more than three.

In some embodiments, the resilient ejector 340 may employ a resilient element such as a spring, reed, torsion spring, or the like that exerts a resilient force through elastic deformation. The resilient member may be compressed between the baffle 350 and the mount 331 while simultaneously compressing the baffle 350 and the mount 351.

Referring to fig. 12 and 17, in some embodiments, in order to facilitate stability of the posture and position of the elastic ejector 340 such as a spring and a tower spring, a limit groove 331c may be formed on the mounting seat 331, and one end of the elastic ejector 340 is embedded in the limit groove 331c, so as to limit sliding of the end of the elastic ejector 340 such as a spring, etc., and ensure reliability of the deformation posture, so as to maintain stable deformation and output of elastic force.

In some embodiments, the first transmission member 310 and the second transmission member 320 may be configured as transmission gears and coaxially rotatably coupled to a mounting shaft 370 provided to the base 100. To limit the first and second transmission members 310 and 320 from being separated from the mounting shaft 370, a locking member 360 may be further provided on the mounting shaft 370 to be coupled to the top of the mounting shaft 370, stopping the first and second transmission members 310 and 320 from being separated.

In some embodiments, locking member 360 may be configured as a cap screw and stop washer 361 may be configured to engage the cap screw to lock first and second transmission members 310 and 320.

In some embodiments, considering that the second transmission member 320 is provided with the accommodating groove 323, in order to achieve the stability of the rotation posture of the second transmission member 320 and the uniformity of the stress, the accommodating groove 323 may be provided as an annular groove, the second transmission member 320 is formed with the shaft barrel 322, and the shaft barrel 322 is sleeved on the mounting shaft 370.

Correspondingly, a first shaft hole 331a can be formed in the middle of the mounting seat 331, and a second shaft hole 353 is formed in the middle of the baffle 350 for being matched and sleeved on the mounting shaft 370.

Fig. 18 shows a schematic structural diagram of an electrical device according to an embodiment of the present application. Referring to fig. 18, some embodiments further provide an electrical apparatus, including a door body 12, a main body 11, and a door pushing mechanism 10, where the door body 12 is movably connected to the main body 11, and the door pushing mechanism 10 is installed on the main body to push the door body 12 open.

The electrical appliance may be a refrigerator, a dishwasher, or the like.

In some embodiments, the door body 12 is rotatably connected to the main body 11, and the door pushing mechanism 10 may be disposed on the main body 11 to push the door body 12 to rotate.

In some embodiments, the door mechanism 10 may be disposed within the body 11 to push against a drawer slidably coupled to the body 11 to open the drawer.

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 (12)

1. A top door mechanism, comprising:

a driving device;

the ejector piece is rotatably arranged on the base and connected with the driving device, and a plurality of bosses with sequentially increased axial distances from the ejector piece to the rotating shaft are sequentially arranged on the ejector piece along the circumferential direction of the rotating shaft of the ejector piece;

the push rod is movably arranged on the base, a plurality of bearing platforms with increased distance from the axis of the rotating shaft are sequentially arranged on the push rod, and the plurality of the bosses are correspondingly arranged with the plurality of bearing platforms;

in the process that the driving device drives the ejector piece to rotate, the bosses respectively and sequentially eject the bearing platforms corresponding to the bosses so as to drive the push rod to eject the door body.

2. The door pushing mechanism according to claim 1, wherein the axial distances from the plurality of platforms to the rotating shaft are sequentially increased from the platform that is pushed by the boss first in the direction in which the push rod moves to push the door body.

3. The roof door mechanism of claim 2, wherein distances from the plurality of bosses to the ejector member increase in sequence from the boss that is first pushed by the boss in a direction perpendicular to the direction in which the push rod moves to eject the door body.

4. The overhead door mechanism of claim 2, wherein the plurality of platforms are equidistant from the ejector in a direction in which the push rod moves the ejector door body.

5. The door pushing mechanism according to claim 1, wherein distances from the plurality of bosses to the axial center of the rotating shaft are sequentially increased in a direction in which the pushing member rotates to push the push rod to push the door body.

6. The top door mechanism of claim 1, wherein the first angle is equal between two adjacent bosses and the shaft center.

7. A top door mechanism as claimed in any one of claims 1 to 6, wherein said ejector comprises a drive gear, said plurality of bosses being provided on a face of said drive gear.

8. A top door mechanism as claimed in any one of claims 1 to 6, further comprising a return member connected between said push rod and said base to enable said push rod to return under the influence of a return force of said return member.

9. The overhead door mechanism of claim 8, wherein the drive further comprises a shock mount and a shock absorber;

the damping seat is arranged on the base and positioned at the end of the moving stroke of the push rod so as to buffer and damp the reset impact of the push rod;

the damping piece is arranged at the top door end of the push rod.

10. The door pushing mechanism as claimed in any one of claims 1 to 6, wherein a linear guide is provided on the base, a chute is provided on the push rod, and the chute is slidably sleeved on the linear guide, so that the push rod pushes the door body along a linear track.

11. A roof door mechanism as claimed in any one of claims 1 to 6, further comprising a clutch means connected between the drive means and the ejector to establish or disconnect the drive means from the ejector.

12. An electrical device, comprising: a door body, a main body and a top door mechanism as claimed in any one of claims 1 to 11, the door body being movably connected to the main body, the top door mechanism being mounted on the main body to open the door body.