CN208268257U - A kind of torque limiter, rotary drive mechanism and refrigerator - Google Patents

Abstract

The utility model belongs to refrigerator art, specifically discloses a kind of torque limiter, rotary drive mechanism and refrigerator.Torque limiter includes: first shell, and one end of first shell offers holding tank；Second shell is oppositely arranged with first shell, and second shell includes connection boss, and the one end for connecting boss is protruded into holding tank, and the side wall for connecting boss is abutted with the side channel wall of holding tank；Elastomer, in holding tank, first shell is abutted with connect in boss one with the outer peripheral sidewall of elastomer, another is abutted with the inner circumferential side wall of elastomer, at least one exterior bayonet slot is offered in the outer peripheral sidewall of the elastomer, at least one inner card cage is offered on the inner circumferential side wall of elastomer, the corresponding exterior bayonet slot abutted in first shell and connection boss with the outer peripheral sidewall of elastomer is provided with the first double wedge, another corresponds to inner card cage and is provided with the second double wedge.The utility model discloses torque limiter structure it is simple, be easily installed, and stable.

Description

A kind of torque limiter, rotary drive mechanism and refrigerator

Technical field

The utility model relates to refrigerator art more particularly to a kind of torque limiters, rotary drive mechanism and refrigerator.

Background technique

Torque limiter is mainly installed in drive mechanism, for transmitting the size of torque and torque limiting.Torque Limiter includes input terminal and output end, and when drive mechanism works normally, the input terminal of torque limiter is synchronous with output end Rotation carries out the transmitting of torque；The load surcharge that bears when torque limiter output end breaks down and leads to torque limiter When suffered torque is more than limit value, the input terminal and output end of torque limiter generate skidding, i.e., input terminal rotates, and exports End stops operating, to play the role of overload protection to drive mechanism.The torque transmitting that can be played by torque limiter and The effect of overload protection, torque limiter is widely used in all kinds of devices transmitted there are torque, such as refrigerator.

Refrigerator is especially able to carry out the refrigerator of intelligent switch door, can be provided with the rotation driving for driving refrigerator doors rotation Mechanism.During refrigerator turns to open or rotates shutdown, since the unexpected effect of external force can make refrigerator doors receiving biggish Torque effect is unfavorable for the long-term of refrigerator to be easy to cause structure and function to damage refrigerator doors and refrigerator rotating mechanism Effectively use.Therefore, rotary drive mechanism is usually provided with torque limiter and limits the torque of transmitting, thus to rotation Driving mechanism and refrigerator provide overload protection.

Currently, existing torque limiter is broadly divided into friction type torque limiter and steel-ball type torque limiter, it is right In the former, the frictional force of control friction plate is usually gone using the pretightning force of spring, when input torque is more than what frictional force generated When torque, torque limiter can generate skidding.For the latter, usually using the pretightning force of spring go control steel ball and groove it Between contact force, when input torque be more than contact force generate torque when, torque limiter will generate skidding.But for On the one hand it is that frictional force is unstable for friction type torque limiter, on the other hand, friction plate can be made after long-time is worn Frictional force decline, torque limiter failure, has to manually go its pretightning force at this time, is not suitable for refrigerator automatic door opening The overload protection of mechanism.For steel-ball type torque limiter, due to the complexity of its structure, it is difficult to its size is reduced, and And installation is complicated, cost is high, therefore is not also suitable for household electrical appliance.

Utility model content

One of the purpose of this utility model is to provide a kind of torque limiter, to simplify structure, the drop of torque limiter The cost of low torque limiter and the stability for improving torque limiter.

The another object of the utility model is to provide a kind of rotary drive mechanism, to improve the operation of rotary drive mechanism Stability, and improve the service life of rotary drive mechanism.

The further object of the utility model is to provide a kind of refrigerator, improves the operation stability and security performance of refrigerator.

To achieve the above object, the utility model adopts the following technical solutions:

A kind of torque limiter, comprising:

One end of first shell, the first shell offers holding tank；

Second shell is oppositely arranged with the first shell, and the second shell includes connection boss, the connection boss One end protrude into the holding tank, it is described connection boss side wall abutted with the side channel wall of the holding tank；

Elastomer is located in the holding tank, one in the first shell and the connection boss and the elasticity The outer peripheral sidewall of body abuts, another abuts with the inner circumferential side wall of the elastomer, opens up in the outer peripheral sidewall of the elastomer There is at least one exterior bayonet slot, at least one inner card cage, the first shell and institute are offered on the inner circumferential side wall of the elastomer It states the corresponding exterior bayonet slot abutted in connection boss with the outer peripheral sidewall of the elastomer and is provided with the first double wedge, it is another A correspondence inner card cage is provided with the second double wedge.

Further, first double wedge, the peripheral side of the connection boss are opened up on the periphery cell wall of the holding tank Wall opens up second double wedge, and the inner wall of the connection boss is abutted with the inner circumferential cell wall of the holding tank.

Further, first double wedge and second double wedge have multiple, and multiple first double wedges are along described The circumferential uniform intervals of one shell are arranged, and multiple second double wedges are arranged along the circumferential uniform intervals of the second shell.

Further, the inner card cage and the exterior bayonet slot run through the upper and lower end face of the elastomer.

Further, the second shell further include:

Ontology, with the connection boss be coaxially disposed, it is described connection boss one end connect with the ontology, the other end and The slot bottom of the holding tank abuts, and there are gaps between the ontology and the first shell.

Further, the ontology and at least partly lateral surface of the first shell are face of gear.

A kind of rotary drive mechanism, including above-mentioned torque limiter.

Further, the rotary drive mechanism further include:

Driving motor；

The worm screw of worm and gear component, the worm and gear group is set on the output shaft of the driving motor, the snail The worm gear of worm and gear group is engaged with the worm screw；

Gear drive group, including first gear group and second gear group, the first gear group and the second gear group One of them engaged with the second shell, another is engaged with the first shell, the first gear group and the snail Wheel engagement.

Further, the first gear successively engaged, second gear, third gear and the 4th gear, first tooth are included Wheel is engaged with the worm gear, and the 4th gear is engaged with the first shell, the first gear, the second gear and institute Stating third gear is duplicate gear.

A kind of refrigerator, including refrigerator main body and refrigerator doors, further includes:

Above-mentioned rotary drive mechanism；

Rotary components, one end are connect with the output end of the rotary drive mechanism, and the other end is connect with the refrigerator doors, institute Stating rotary drive mechanism can drive the refrigerator doors to rotate by the rotary components.

The utility model has the beneficial effects that:

Torque limiter provided by the utility model is made by the way that elastomer is arranged between first shell and second shell When torque suffered by torque limiter is less than restriction torque, first shell, second shell and elastomer are rotated synchronously, and realize torque Transmitting；The torque described in the torque limiter is greater than when limiting torque, and first shell or second shell and elastomer generation are beaten Sliding, i.e., first shell, second shell and elastomer no longer rotate synchronously, to limit the transmitting of torque.The utility model provides Torque limiter, structure is simple, easy for installation, and the groove depth of the inner card cage and exterior bayonet slot on elastomer can be according to the restriction Torque be designed, it is convenient and efficient；And will not be because of the abrasion between first shell or second shell and elastomer caused by Torque limiter failure, stable, long service life, and it is low in cost.

Rotary drive mechanism provided by the utility model can pass torque by using above-mentioned torque limiter While passing and limit, the structure and installation complexity of rotary drive mechanism are simplified, the cost of rotary drive mechanism is reduced, Improve the operation stability and security performance of rotary drive mechanism.

Refrigerator provided by the utility model improves refrigerator intelligent switch door by using above-mentioned rotary drive mechanism Stability and mount type.

Detailed description of the invention

Fig. 1 is the structural schematic diagram for the refrigerator that embodiment provides；

Fig. 2 is the partial enlarged view in Fig. 1 at A；

Fig. 3 is fractionation structural representation of the rotary drive mechanism provided in this embodiment under a visual angle；

Fig. 4 is fractionation structural representation of the rotary drive mechanism provided in this embodiment at another visual angle；

Fig. 5 is the structural schematic diagram of torque limiter provided in this embodiment；

Fig. 6 is the fractionation structural representation of torque limiter provided in this embodiment；

Fig. 7 is the cross-sectional view of torque limiter provided in this embodiment；

Fig. 8 is the partial structure diagram of refrigerator provided in this embodiment；

Fig. 9 is the fractionation structural representation of rotary components provided in this embodiment.

It is marked in figure as follows:

1- refrigerator main body；

2- refrigerator doors；

3- ejecting mechanism；

4- rotary drive mechanism；41- container, 411- upper cartridge body；The upper positioning convex platform of 4111-；412- lower box body；4121- Lower positioning convex platform；42- driving motor；431- worm and gear component；432- first gear；433- second gear；434- third tooth Wheel；The 4th gear of 435-；The 5th gear of 436-；The 6th gear of 437-；45- locating shaft；46- fixed plate；The first plate of 461-；462- Second plate；

5- rotary components；51- connecting column；52- connecting rod；53- terminal pad；531- first；532- second；54- is passed Lever；55- attachment base；551- transverse slat；552- first leg；The second supporting leg of 553-；

6- torque limiter；61- second shell；611- ontology；612- connection boss；The second double wedge of 6121-；62- first Shell；621- holding tank；The first double wedge of 622-；63- elastomer；631- exterior bayonet slot；632- inner card cage.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.

Fig. 1 is the structural schematic diagram for the refrigerator that embodiment provides, as shown in Figure 1, refrigerator provided in this embodiment includes ice Box main body 1, refrigerator doors 2 and be arranged on refrigerator main body 1 and act on refrigerator doors 2 refrigerator door opening/closing apparatus and rotation Component 55, door opening/closing apparatus include ejecting mechanism 3 and rotary drive mechanism 4.Wherein, refrigerator doors 2 are articulated with ice by articulated shaft The side of box main body 1, so that refrigerator doors 2 can be rotated relative to refrigerator main body 1, to open or close refrigerator；The setting of ejecting mechanism 3 exists Suction force range is sealed for refrigerator doors 2 to be ejected magnetic in the top of refrigerator main body 1；The setting of rotary drive mechanism 4 is pushed up in refrigerator main body 1 Portion, for providing driving force for the rotation of refrigerator doors；Rotary components 55 are connected with rotary drive mechanism 4 and refrigerator doors 2 respectively, use In making rotary drive mechanism 4 that refrigerator doors 2 be driven to rotate, so that refrigerator doors 2 open or close.

Refrigerator in the present embodiment can be side by side combination refrigerator, or simple gate refrigerator.When refrigerator is door-opening type When refrigerator, each refrigerator doors 2 are correspondingly arranged a set of ejecting mechanism 3 and rotary drive mechanism 4, and ejecting mechanism 3 is arranged in refrigerator The side of 2 articulated shafts far from refrigerator doors 2 of door, rotary drive mechanism 4 are positioned close to the side of articulated shaft；Two can also be used A refrigerator doors 2 share an ejecting mechanism 3 setting, enable the same ejecting mechanism 3 by two refrigerator doors 2 simultaneously or separately It opens.When refrigerator is simple gate refrigerator, a rotary drive mechanism 4 and an ejecting mechanism 3 are provided only on refrigerator, and rotate Refrigerator doors 2 are arranged in close to the side of articulated shaft in driving mechanism 4, and ejecting mechanism 3 is preferably provided at far from 2 rotation center of refrigerator doors Side；Multiple ejecting mechanisms 3 can also be set along the width direction interval of refrigerator doors 2 on refrigerator main body 1, it is each to reduce Ejecting mechanism 3 pushes load.In the present embodiment, it by taking opposite opened refrigerator as an example, and is directed in one of refrigerator doors 2 and is arranged A set of ejecting mechanism 3 and rotary drive mechanism 4 for.

Fig. 2 is the partial enlarged view in Fig. 1 at A, as shown in Fig. 2, ejecting mechanism provided in this embodiment 3 includes driving portion And ejection part, wherein driving portion is fixedly connected on the upper surface of refrigerator main body 1, and ejection part is connect with driving portion, and opposite can drive Dynamic portion ejects or retracts along the direction perpendicular to refrigerator doors 2, so that driving portion one end contacts with refrigerator doors 2 and pushes refrigerator doors 2. In the present embodiment, driving portion can be cylinder main body, and ejection part is the piston rod construction of hydraulic cylinder；Driving portion can also wrap Include motor and the rack-and-pinion for being converted into ejection part translational motion by motor, wherein motor can be direct current generator.

Fig. 3 is fractionation structural representation of the rotary drive mechanism 4 provided in this embodiment under a visual angle, such as Fig. 3 institute Show, rotary drive mechanism 4 provided in this embodiment includes container 41 and the driving assembly being arranged in container 41 and transmission Component.

In the present embodiment, container 41 is L-shaped, and the top of refrigerator main body 1 is arranged in the vertical edge of L shape container 41, and It is fixedly connected with refrigerator main body 1, the horizontal edge of L-type container 41 is fixed at the top of refrigerator doors 2.Container 41 includes upper box Body 411 and the lower box body 412 cooperated with upper cartridge body 411, upper cartridge body 411 and lower box body 412 have cooperatively formed receiving driving assembly Prevent dust or other spots etc. from falling into transmission group for protecting driving assembly and transmission component with the accommodating cavity of transmission component In part and driving assembly, the part of rotary drive mechanism 4 is caused to wear or be damaged.

Driving assembly can be driving motor 42, and the output end of driving motor 42 connects transmission component.Transmission component includes Worm and gear component 431 and gear-driven assembly, wherein worm screw is set on the output shaft of the first driving motor 42, worm gear and snail Bar engagement.Gear-driven assembly includes Multi-stage transmission gear, to reduce the revolving speed of the first driving motor 42 and improve the defeated of motor Torque out.

Gear-driven assembly includes first gear group, second gear group and is arranged in first gear group and second gear group Between torque limiter 6.First gear group includes the first gear 432, second gear 433, third gear 434 successively engaged With the 4th gear 435, wherein first gear 432 is engaged with worm gear, and the 4th gear 435 is engaged with torque limiter 6, and first Gear 432, second gear 433 and third gear 434 are duplicate gear, the more teeth portion of the number of teeth and upper level in duplicate gear Gear engagement, the less teeth portion of the number of teeth are engaged with next stage gear, to increase the whole transmission ratio of gear-driven assembly, make gear The output end of component obtains the output quantity of the slow-speed of revolution, large torque.Second gear group includes the 5th gear 436 successively engaged and Six gears 437, wherein the 5th gear 436 is engaged with torque limiter 6, and the 6th gear 437 is engaged with rotary components 5, the 5th tooth Wheel 436 and the 6th gear 437 are individual gears.

In the present embodiment, the number of gears and form of first gear group and second gear group are as described above, and first Gear set is arranged on the vertical edge of L shape container 41, and second gear group is arranged on the horizontal edge of L-type container 41, torque limit The corner of container 41 is arranged in device 6.This kind of set-up mode can make the structure of rotary drive mechanism 4 more compact.And by When the torque when output end increases to and limits torque value, the skidding effect that torque limiter 6 generates can be to torque limiter 6 Transmission component between driving assembly is protected, to protect the parts count in transmission component as much as possible.But In other embodiments, number, form and the position of first gear group and second gear group middle gear can according to specific needs into Row setting, as long as being able to achieve the output and transmitting of torque, and is ok the structure of the restriction effect of torque.

In the present embodiment, each gear in first gear group and second gear group is respectively by being threaded through in gear The rotation of locating shaft 45 is fixed.Each locating shaft 45 is vertically arranged between upper cartridge body 411 and lower box body 412, and and upper cartridge body 411 and lower box body 412 connect.Fig. 4 is fractionation structural representation of the rotary drive mechanism 4 provided in this embodiment at another visual angle Figure, as shown in Figure 3 and Figure 4, the position that upper cartridge body 411 and lower box body 412 correspond to each locating shaft 45 are provided with positioning Boss 4111 and lower positioning convex platform 4121, upper positioning convex platform 4111 and lower positioning convex platform 4121 offer and connect and fix locating shaft The lower end of 45 centre bore, locating shaft 45 is located in the lower centre bore of lower positioning convex platform 4121, and is interference fitted with lower centre bore, The upper end of locating shaft 45 is located in the upper centre bore of upper positioning convex platform 4111, and is interference fitted with upper centre bore.Each gear turns It is dynamic to be set on corresponding locating shaft 45, and the lower end surface of each gear is abutted with lower positioning convex platform 4121, upper end end face and Upper positioning convex platform 4111 abuts, i.e., the upward displacement of each gear shaft is limited by upper positioning convex platform 4111 and lower positioning convex platform 4121 It is fixed.

In the present embodiment, the peak torque that torque limiter 6 is used to transmit transmission component limits, to rotation Driving mechanism 4 and refrigerator are protected.Fig. 5 is the structural schematic diagram of torque limiter 6 provided in this embodiment, as shown in figure 5, Torque limiter 6 includes second shell 61 and first shell 62, and the outer peripheral surface of second shell 61 and first shell 62 is gear Face, for being engaged transmission with first gear group and second gear group respectively.In the present embodiment, since transmission component selects For gear drive, i.e. the outer peripheral surface of the second shell 61 and first shell 62 of torque limiter 6 is all gear face.Work as transmission component When being selected as other driving forms, the external surface that the shape of torque limiter 6 can choose to cooperate with other driving forms, such as The outer peripheral surface of first shell 62 and second shell 61 can be partially face of gear etc..

In the present embodiment, by opening up face of gear in the second shell 61 and first shell 62 of torque limiter 6, make First shell 62 and second shell 61 are engaged with first gear group and second gear group respectively, this kind of mode, can simplify torque limit The overall structure of device 6 processed, is conducive to installing and using for torque limiter 6.In other embodiments, it is also possible in second shell The fixation of 61 peripheries is arranged gear and engages with second gear group, sets gear and first gear in 62 periphery fixing sleeve of first shell Group engagement.In the present embodiment, first shell 62 is engaged with first gear group, and second shell 61 is engaged with second gear group, In other embodiments, second shell 61 also may be selected and engaged with first gear group, first shell 62 is engaged with second gear group.? In the present embodiment, second shell 61 is identical with the outer diameter of first shell 62, the number of teeth is also identical, in other embodiments, second shell The outer diameter and the number of teeth of body 61 and first shell 62 can specifically be designed according to specific requirements.

Fig. 6 is the fractionation structural representation of torque limiter 6 provided in this embodiment, as shown in fig. 6, the present embodiment provides Torque limiter 6 include second shell 61, first shell 62 and elastomer 63.First shell 62 is opposite with second shell 61 to be set It sets, one end of first shell 62 towards second shell 61 offers the holding tank 621 of annular, the periphery cell wall edge of holding tank 621 Its circumferential direction offers multiple first double wedges 622.Second shell 61 is convex including ontology 611 and with the connection of the coaxial arrangement of ontology 611 One end of ontology 611 is arranged in platform 612, connection boss 612, and the lateral wall for connecting boss 612 is set along its axial uniform intervals It is equipped with multiple second double wedges 6121.One end of the connection boss 612 of second shell 61 is located in holding tank 621, far from ontology 611 one end end face is abutted with the slot bottom of holding tank 621, and the periphery cell wall of the internal diameter and holding tank 621 of connection boss 612 Major diameter fit abuts.

Elastomer 63 is located in holding tank 621, and the outer peripheral sidewall of elastomer 63 offer it is corresponding with the first double wedge 622 Exterior bayonet slot 631, the inner circumferential side wall of elastomer 63 offer inner card cage 632 corresponding with the second double wedge 6121.The number of inner card cage 632 Amount, location and shape are corresponding with the second double wedge 6121；The quantity of exterior bayonet slot 631, location and shape and the first double wedge 622 are right It answers.In the present embodiment, the axial direction of inner card cage 632 and exterior bayonet slot 631 along elastomer 63 opens up, and 632 He of inner card cage One radial groove depth in exterior bayonet slot 631 is smaller, another radial groove depth is larger.

This kind of set-up mode can make torque limiter 6 when the torque transmitted is less than limitation torque, the first double wedge 622 engage with exterior bayonet slot 631, and the second double wedge 6121 and inner card cage 632 engage, i.e. the second shell 61 of torque limiter 6 and the One shell 62 rotates synchronously transmission, realizes the engaged transmission of the first gear group and second gear group that are engaged with；When torque limits When the torque that device 6 processed is transmitted is greater than or equal to limitation torque, by taking the radial groove depth of inner card cage 632 is smaller as an example, elastomer 63 It deforming under the action of torque, inner card cage 632 separates under 63 metamorphosis of elastomer with the second double wedge 6121, i.e., and second Shell 61 occurs to slide relatively with elastomer 63, and the rotation of second shell 61 is unable to drive the synchronous rotation of elastomer 63.And due to The radial groove depth of exterior bayonet slot 631 is larger, even if elastomer 63 deforms, exterior bayonet slot 631 is still engaged with the first double wedge 622, To make elastomer 63 be fixedly connected with first shell 62, i.e., when skidding occurs, between second shell 61 and first shell 62 Effective torque transmitting can not be carried out, thus when transmitting torque is more than to limit torque, it can be to first shell 62 and with first The structure that shell 62 connects is protected.

In the present embodiment, the radial groove depth of inner card cage 632 is smaller, and the radial groove depth of exterior bayonet slot 631 is larger, thus when turning round Square is more than when limiting torque, to skid between inner card cage 632 and the second double wedge 6121, and exterior bayonet slot 631 and the first double wedge 622 are solid Fixed connection.In other embodiments, the radial groove depth of inner card cage 632 can also be made larger, the radial groove depth of exterior bayonet slot 631 compared with It is small, make to skid between exterior bayonet slot 631 and the first double wedge 622 when torque is more than to limit torque, inner card cage 632 and second Double wedge 6121 is fixedly connected.

Fig. 7 is the cross-sectional view of torque limiter 6 provided in this embodiment, as shown in fig. 7, connection boss 612 and elastomer 63 are arranged in the holding tank 621 of first shell 62, and the outer diameter of elastomer 63 and the outer diameter of 621 periphery cell wall of holding tank are matched It closes, the internal diameter of elastomer 63 and the major diameter fit for connect boss 612, the internal diameter and 621 inner circumferential cell wall of holding tank of connection boss 612 Diametric fit.And there are gap between the upper surface of first shell 62 and the lower end surface of ontology 611, for for elastomer 63 Axial movement provides space.

For the structural strength for improving elastomer 63, in the present embodiment, inner card cage 632 and exterior bayonet slot 631 are staggered.? In the present embodiment, elastomer 63 is made of elastic material, the required material of elastomer 63, inner card cage 632 and exterior bayonet slot 631 Radial groove depth size, number of inner card cage 632 and exterior bayonet slot 631 etc. can according to required limitation limitation torque size and The structure size etc. of torque limiter 6 is specifically arranged.

In the present embodiment, elastomer 63 be located at the periphery cell wall of holding tank 621 with connect boss 612 lateral wall it Between, the first double wedge 622 cooperated with exterior bayonet slot 632 is opened up in second shell 62, is connected and is offered and inner card cage on boss 612 Second double wedge 6121 of 632 cooperations.In other embodiments, it can also make elastomer 63 that the internal circle groove of holding tank 621 is set Between wall and the inner sidewall for connecting boss 612, i.e., the lateral wall of elastomer 63 is abutted with the inner sidewall for connecting boss 612, connection The first double wedge 622 cooperated with exterior bayonet slot 631 is opened up on boss 612；The inner sidewall of elastomer 63 and the internal circle groove of holding tank 621 Wall abuts, and the inner circumferential cell wall of holding tank 621 opens up the second double wedge cooperated with inner card cage 632.

Torque limiter 6 provided in this embodiment, the flexible deformation control occurred under high torque effect by elastomer 63 The skidding and transmission separation of second shell 61 and first shell 62 processed.The structure of this kind of torque limiter 6 is simple, is easily installed, And it is cheap.Meanwhile torque will not be caused to limit because of the abrasion between elastomer 63 and second shell 61 and first shell 62 The failure of device 6 processed, long service life, stability are high.

Fig. 8 is the partial structure diagram of refrigerator provided in this embodiment, as shown in figure 8, container 41 passes through fixed plate 46 one end are fixed on refrigerator main body 1, and the other end is fixed in refrigerator doors 2.Fixed plate 46 includes and 41 bottom shape of container Mutually the second plate 462 of the first suitable plate 461 and connection the first plate 461 and refrigerator main body 2.In the present embodiment, the first plate 461 with Lower box body 412, the first plate 461 are all made of with refrigerator main body 1 and are threadedly coupled with the second plate 462 and the second plate 462.It is real at other It applies in example, it can also be using other detachable connection methods.

The output end of rotary drive mechanism 4 is connect by rotary components 5 with refrigerator doors 2, so that rotary drive assembly 4 drives Refrigerator doors 2 are rotated relative to refrigerator main body 1.Specifically, Fig. 9 is the fractionation structural representation of rotary components 5 provided in this embodiment, As shown in figure 9, rotary components 5 mainly include attachment base 55, drive rod 54, terminal pad 53, connecting column 51 and connecting rod 52.

The output end of transmission component, i.e. the 6th gear 437 are set on connecting column 51, and with connecting column 51 be interference fitted with Connecting column 51 is driven to rotate.The upper end of connecting column 51 offers positioning step, i.e. the upper end of connecting column 51 is arch, and lower end is circle Cylindricality.It is offered on lower box body 412 and mutually fits and hold the hole that 51 upper end of connecting column passes through with 51 upper end shape of connecting column, so that connection The positioning step of column 51, which abuts to be formed with the lower end surface of lower box body 412, connect positioning.Its axially spaced-apart of the lower end edge of connecting column 51 Radial jack hole there are two opening up, and the axis of two radial jack holes is mutually perpendicular to, and is equipped in each radial direction jack hole A piece connecting rod 52.

Terminal pad 53 includes first 531 and second 532 of coaxial arrangement, and first 531 upper surface opens up useful In the slot for accommodating 51 lower end of connecting column, and radially uniform intervals offer four crank-guide ways.Two connecting rods 52 distinguish position In in corresponding two pairs of opposite crank-guide ways.

First 531 lower end surface is abutted with the upper surface of the first plate 461, second 532 pass through the first plate 461, and with Attachment base 55 abuts.Attachment base 55 is driven with terminal pad 53 by drive rod 54, so that terminal pad 53 drives attachment base 55 synchronous Rotation.Specifically, internal gear is offered on second 532 and attachment base 55, drive rod 54 is rack, the upper end of rack It is engaged with second 532, lower end is engaged with attachment base 55, to realize the engaged transmission of terminal pad 53 Yu attachment base 55.

Attachment base 55 includes transverse slat 551 and is separately positioned on the first leg 552 and the second supporting leg 553 at 551 both ends of transverse slat, The upper surface of refrigerator doors 2 is abutted with the bottom surface of transverse slat 551, and refrigerator doors 2 correspond to first leg 552 and the second supporting leg 553 Position is provided with fixation hole, first leg 552 and the second supporting leg 553 and is interference fitted with fixation hole to drive refrigerator doors to rotate.Even Joint chair 55 offers above-mentioned internal gear in the position of first leg 552 and the corresponding first leg 552 of transverse slat 551, connects always Seat 55 is rotated around the rotation axis of first leg, to drive refrigerator doors to rotate along the rotation axis of first leg 552.First leg 552 Rotation axis and articulated shaft be coaxially disposed.

To provide space to the deformation in 55 transmission process of drive rod 54 and attachment base, rack and attachment base 55 are along it It axially opens up jagged.

In the present embodiment, by the way that above-mentioned rotary components 5 are arranged, the output end of rotary drive mechanism 4 can be made to transmit Revolving speed and torque are smoothly transferred to refrigerator doors, the compact overall structure of rotary components 5, and high reliablity.In other embodiments, The rotary components 5 that other forms can also be used, as long as the revolving speed being able to achieve between rotary drive mechanism 4 and refrigerator doors 2 and torsion The rotary components 5 of square transmitting.

Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended Scope of the claims determine.

Claims (10)

1. a kind of torque limiter (6) characterized by comprising

One end of first shell (62), the first shell (62) offers holding tank (621)；

Second shell (61) is oppositely arranged with the first shell (62), and the second shell (61) includes connection boss (612), one end of connection boss (612) is protruded into the holding tank (621), and the side wall of connection boss (612) It is abutted with the side channel wall of the holding tank (621)；

Elastomer (63) is located in the holding tank (621), in the first shell (62) and the connection boss (612) One abuts with the outer peripheral sidewall of the elastomer (63), another is abutted with the inner circumferential side wall of the elastomer (63), described At least one exterior bayonet slot (631) is offered in the outer peripheral sidewall of elastomer (63), is opened on the inner circumferential side wall of the elastomer (63) Equipped at least one inner card cage (632), in the first shell (62) and the connection boss (612) with the elastomer (63) The correspondence exterior bayonet slot (631) that abuts of outer peripheral sidewall be provided with the first double wedge (622), another described interior card of correspondence Slot (632) is provided with the second double wedge (6121).

2. torque limiter (6) according to claim 1, which is characterized in that on the periphery cell wall of the holding tank (621) First double wedge (622) is opened up, the outer peripheral sidewall of connection boss (612) opens up second double wedge (6121), described The inner wall of connection boss (612) is abutted with the inner circumferential cell wall of the holding tank (621).

3. torque limiter (6) according to claim 2, which is characterized in that first double wedge (622) and described second Double wedge (6121) have it is multiple, multiple first double wedges (622) along the first shell (62) circumferential uniform intervals be arranged, Multiple second double wedges (6121) are arranged along the circumferential uniform intervals of the second shell (61).

4. torque limiter (6) according to claim 1, which is characterized in that the inner card cage (632) and the exterior bayonet slot (631) run through the upper and lower end face of the elastomer (63).

5. torque limiter (6) according to claim 1, which is characterized in that the second shell (61) further include:

Ontology (611) is coaxially disposed with the connection boss (612), one end of connection boss (612) and the ontology (611) connect, the other end abuts with the slot bottom of the holding tank (621), the ontology (611) and the first shell (62) it Between there are gaps.

6. torque limiter (6) according to claim 5, which is characterized in that the ontology (611) and the first shell (62) at least partly lateral surface is face of gear.

7. a kind of rotary drive mechanism (4), which is characterized in that including torque limiter as claimed in any one of claims 1 to 6 (6)。

8. rotary drive mechanism (4) according to claim 7, which is characterized in that the rotary drive mechanism (4) is also wrapped It includes:

Driving motor (42)；

The worm screw of worm and gear component (431), the worm and gear component (431) is set in the output of the driving motor (42) On axis, the worm gear of the worm and gear component (431) is engaged with the worm screw；

Gear drive group, including first gear group and second gear group, the first gear group and the second gear group its In one engaged with the second shell (61), another is engaged with the first shell (62), the first gear group and institute State worm gear engagement.

9. rotary drive mechanism (4) according to claim 8, which is characterized in that the first gear group includes successively nibbling First gear (432), second gear (433), third gear (434) and the 4th gear (435) of conjunction, the first gear (432) it is engaged with the worm gear, the 4th gear (435) is engaged with the first shell (62), the first gear (432), the second gear (433) and the third gear (434) are duplicate gear.

10. a kind of refrigerator, including refrigerator main body (1) and refrigerator doors (2), which is characterized in that further include:

Such as the described in any item rotary drive mechanisms of claim 7-9 (4)；

Rotary components (5), one end are connect with the output end of the rotary drive mechanism (4), and the other end and the refrigerator doors (2) are even It connects, the rotary drive mechanism (4) can drive the refrigerator doors (2) to rotate by the rotary components (5).