CN106052288B

CN106052288B - Sliding track mechanism and refrigerator with it

Info

Publication number: CN106052288B
Application number: CN201610357116.XA
Authority: CN
Inventors: 陆日勇; 费斌; 刘金林; 刘竹青
Original assignee: Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Co Ltd
Priority date: 2016-05-25
Filing date: 2016-05-25
Publication date: 2018-07-13
Anticipated expiration: 2036-05-25
Also published as: WO2017202048A1; CN106052288A

Abstract

Present invention is disclosed a kind of sliding track mechanism and with its refrigerator, each slide track component has upper rail, middle rail and the lower rail being mutually slidably matched, sliding track mechanism further includes lazy-tongs and electric machine assembly, lazy-tongs include rail assembly in two groups of auxiliary, the tumbler of rail assembly, tensioner and the fixing piece set on two groups of slide track components in auxiliary, and tensioner is wound on by tumbler between the fixing piece of two slide track components；Electric machine assembly has to wind or discharge the first connecting pin and the second connection end of tensioner, two parts in tensioner positioned at same fixing piece front and rear sides are intertwined and connected on first and second connecting pin, make tensioner movement by one in first and second connecting pin shrinks tensioner, another one discharges tensioner when electric machine assembly works.The present invention increases rail assembly in auxiliary, and tumbler is set in auxiliary on rail assembly, and upper rail, the variation of lower rail gap do not interfere with tumbler, meanwhile, drawer realizes automatic pull.

Description

Sliding track mechanism and refrigerator with it

Technical field

The present invention relates to field of household appliances more particularly to a kind of sliding track mechanism and with its refrigerator.

Background technology

Currently, three section sliding rails in the market are primarily present following problem in practical applications：First, it is generated during use Noise：Existing three sections sliding rail, is first run using upper rail, when upper rail range ability culminates, using upper rail and middle rail Limiting device contact-impact pulls out middle rail；The limiting device contact-impact of rail and lower rail, reaches middle rail and is led in same use The distance drawn reaches pole；And limiting device generates in upper rail and middle rail, middle rail and in lower rail contact impact making an uproar for " pedaling, pedal " Sound brings high frequency noise to user.Secondly, double swerve is generated during use：Existing three sections sliding rail is in practical applications Pairs of mode is mostly used, and using the method for operation of foregoing description, while the transmission between three section sliding rails is made using several steel balls The carriage between each rail；Therefore, three section sliding rails cannot lock each other, and front and back reserved reduction space is drawn in actual use The direction of active force and sliding rail running force when going out causes to save the dress that sliding rail pulls out by a pair three not on the center line of sliding rail The face of setting will appear scene one in front and one in back, and any position after pull-out, when both hands are different using both sides amount of force, The phenomenon that rolling is will produce, security risk is brought to user.

Existing three section sliding rail is influenced by cost, standard technology control and reliability in the market, between upper rail and lower rail Clearance distance generally in 2mm.In the prior art, as application No. is the applications for a patent for invention of CN201410372586.4 to be for this department Example can increase lazy-tongs to realize that the synchronous of two wood side-guides passes in and out in three section sliding rails, and the tumbler of the lazy-tongs includes Pedestal, pedestal are necessarily mounted on middle rail entire lazy-tongs and can be only achieved expected synchronous muting function, that is to say, that pedestal It need to be in the gap of 2mm.In addition, in order to ensure that the intensity of pedestal, the size for the interconnecting piece that pedestal is connect with middle rail are unsuitable That does is too small, is preferably arranged to the height of 1.8mm, thus, the substantially 0.1mm of the spacing between upper rail and interconnecting piece, under Spacing between rail and interconnecting piece also substantially 0.1mm.It is internal with the increase of three section sliding rail access times in practice Steel ball and upper rail, lower rail, middle rail easy to produce abrasion, cause the clearance distance between upper rail and lower rail to be gradually reduced, due to Spacing between upper rail and lower rail and pedestal interconnecting piece is minimum, at this point, the reduction of clearance distance is easy to cause upper rail and/or lower rail Interference is generated between pedestal interconnecting piece, or even generates stuck phenomenon.Therefore, three sections sliding rail reliability in the prior art exists Problem.

In addition, manual switch drawer can make user experience bad, and user's manual switch is easily damaged lazy-tongs.

Invention content

The purpose of the present invention is to provide sliding track mechanism in one and with its refrigerator.

One of for achieving the above object, an embodiment of the present invention provides a kind of sliding track mechanism, for drawer in case It pulls out or promotes in vivo, including the first slide track component and the second slide track component being oppositely arranged, each slide track component has mutual Upper rail, middle rail and the lower rail being slidably matched, the sliding track mechanism further include so that the first slide track component and the second slide track component are same The lazy-tongs and electric machine assembly of moved further, lazy-tongs include rail assembly in the two groups of auxiliary coordinated with two groups of slide track components, The tumbler of rail assembly, tensioner and the fixing piece set on two groups of slide track components in the auxiliary, the tensioner are logical Tumbler is crossed to be wound between the fixing piece of two slide track components so that when the upper rail of the first slide track component or middle rail move, institute State upper rail or middle rail displacement same distance in the same direction that tensioner drives the second slide track component by fixing piece；The electric machine assembly tool There are the first connecting pin for winding or discharging the tensioner and second connection end, is located at same fixing piece in the tensioner Two parts of front and rear sides are intertwined and connected respectively on first connecting pin and second connection end, the electric machine assembly work When by one in the first connecting pin and second connection end shrinks the tensioner, another one discharges the tensioner so that institute Tensioner movement is stated, and then drives the middle rail and upper rail to move by fixing piece.

As being further improved for an embodiment of the present invention, rail assembly includes an at least limit base in each auxiliary And an at least lead screw, the lead screw are movably disposed in the limit base, the lead screw connects the tumbler, when described When upper rail or middle rail move, the limit base remains stationary as, and the relatively described limit base is same jointly for the lead screw and the tumbler To movement.

As being further improved for an embodiment of the present invention, the limit base is fixedly arranged on the lower rail or babinet.

As being further improved for an embodiment of the present invention, the central axes of the lead screw are parallel with the tensioner.

As being further improved for an embodiment of the present invention, the fixing piece includes the be set on the first slide track component One upper fixing element and first time fixing piece, the second upper fixing element on the second slide track component；The tumbler includes being set to Coordinate rail assembly in the auxiliary of the first slide track component the first front steering part and the first rear steering part, be set to cooperation the second slide rail group The the second front steering part and the second rear steering part of rail assembly in the auxiliary of part；The tensioner includes passing through the first front steering part simultaneously The first tensioner of first time fixing piece and the first upper fixing element is connected, passes through the first rear steering part, the second rear steering part successively And second front steering part and connect the second tensioner of the first upper fixing element and the second upper fixing element, successively by the second rear steering Part and the first rear steering part and connect the second upper fixing element and first time fixing piece third tensioner, first connecting pin with Second connection end is mutually intertwined and connected with the first tensioner of first time fixing piece front and rear sides and third tensioner respectively.

As being further improved for an embodiment of the present invention, first time fixing piece has respectively by the first tensioner The first guide part and the second guide part of first connecting pin and second connection end are oriented to third tensioner.

As being further improved for an embodiment of the present invention, the sliding track mechanism further includes set on the first guide part and the The first bushing between one connecting pin, part of the tensioner between the first guide part and electric machine assembly are arranged in described In one bushing, length of the tensioner between the first guide part and electric machine assembly be more than the first guide part and electric machine assembly it Between distance；The sliding track mechanism further includes the second bushing being set between the second guide part and second connecting portion, the tensioning Part of the part between the second guide part and electric machine assembly is arranged in second bushing, and the tensioner is led second It is more than the distance between the second guide part and electric machine assembly to the length between part and electric machine assembly.

As being further improved for an embodiment of the present invention, the electric machine assembly include can forward and reverse rotation motor, The transmission gear for adjusting rotating speed, the curled hair cylinder moved by drive gears turn, first connecting pin and second connection end are all provided with It is placed on the curled hair cylinder, and positioned at two part difference reverse-windings of same fixing piece front and rear sides in the tensioner On first connecting pin and second connection end.

As being further improved for an embodiment of the present invention, the tumbler includes being fixed on rail assembly in each auxiliary The front steering part and rear steering part of front and back end, the fixing piece include be respectively arranged on the first slide track component upper rail and lower rail The second upper fixing element and second of one upper fixing element and first time fixing piece, the upper rail and lower rail that are respectively arranged on the second slide track component Lower fixing piece, the tensioner include by two rear steering parts and connecting the first of first time fixing piece and the second upper fixing element Tensioner, by two rear steering parts and connect the first upper fixing element and second time fixing piece the second tensioner, the motor Component includes be intertwined and connected respectively the first motor component and the second electric machine assembly of first tensioner and the second tensioner, institute First motor component and the second electric machine assembly is stated to shrink or discharge respectively the first tensioner and the second tensioner and make described Tight part movement, and then drive the middle rail and upper rail to move by fixing piece.

One of for achieving the above object, an embodiment of the present invention provides a kind of refrigerator, including slides as described above Rail mechanism.

Compared with prior art, the beneficial effects of the present invention are：The present invention increases rail assembly in auxiliary, and by tumbler It is set in auxiliary on rail assembly, in this way, the variation in gap does not interfere with the normal operation of tumbler between upper rail, lower rail, To ensure the stability of lazy-tongs, meanwhile, by the mutual cooperation of electric machine assembly and lazy-tongs, the motor work When so that it is connected to the tensioner movement of the motor, and then drives the middle rail and upper rail to move by fixing piece, is taken out Drawer realizes automatic pull, easy to use.

Description of the drawings

Fig. 1 is the sliding track mechanism original state schematic diagram of first embodiment of the invention；

Fig. 2 is the sliding track mechanism explosive view of first embodiment of the invention；

Fig. 3 is the sliding track mechanism sliding mode schematic diagram of first embodiment of the invention；

Fig. 4 is the structural schematic diagram with rail assembly in auxiliary of first embodiment of the invention；

Fig. 5 is the explosive view with rail assembly in auxiliary of first embodiment of the invention；

Fig. 6 is the fixing piece distribution schematic diagram of a specific example of the invention；

Fig. 7 is the fixing piece distribution schematic diagram of another specific example of the present invention；

Fig. 8 is the sliding track mechanism original state schematic diagram of second embodiment of the invention；

Fig. 9 is the sliding track mechanism explosive view of second embodiment of the invention；

Figure 10 is the sliding track mechanism sliding mode schematic diagram of second embodiment of the invention；

Figure 11 is the structural schematic diagram with rail assembly in auxiliary of second embodiment of the invention；

Figure 12 is the explosive view with rail assembly in auxiliary of second embodiment of the invention；

Figure 13 is the sliding track mechanism original state schematic diagram of third embodiment of the invention；

Figure 14 is the sliding track mechanism explosive view of third embodiment of the invention；

Figure 15 is the sliding track mechanism sliding mode schematic diagram of third embodiment of the invention；

Figure 16 is the structural schematic diagram with rail assembly in auxiliary of third embodiment of the invention；

Figure 17 is the explosive view with rail assembly in auxiliary of third embodiment of the invention；

Figure 18, Figure 19 are the sliding track mechanism schematic diagrames with electric machine assembly of an embodiment of the present invention；

Figure 20, Figure 21 are the sliding track mechanism schematic diagrames with electric machine assembly of another embodiment of the present invention；

Figure 22 is the longitudinal sectional drawing of the rear steering part of an embodiment of the present invention；

Figure 23 is the transverse cross-sectional view of the rear steering part of an embodiment of the present invention.

Specific implementation mode

Below with reference to specific implementation mode shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally Transformation is included within the scope of protection of the present invention.

As shown in Figure 1, the present invention provides a kind of sliding rail machines for pulling out or promoting in babinet for drawer (not indicating) Structure 100, including two groups of slide track components 1 being oppositely arranged.Certainly, the sliding track mechanism 100 can be used for the pumping of other structures It draws, extend or shrinks.It should be noted that two groups of slide track components 1 can be with left and right settings, in other embodiments, two groups of sliding rails Component 1 can also be setting up and down, in the present invention, by taking two groups of 1 left and right settings of slide track component as an example.

In addition, the representation space used herein such as "upper", " top ", "lower", " lower section ", "left", "right" is with respect to position The term set be for the purpose convenient for explanation come describe as shown in the drawings a unit or feature relative to another list The relationship of member or feature.The term of relative space position can be intended to include equipment in use or work in addition to side as shown in the figure Different direction other than position.For example, if the equipment in figure overturn, it is described as being located at other units or feature " lower section " Or " under " unit will be located at other units or feature " top ".Therefore, exemplary term " lower section " can include top and Both orientation of lower section.Equipment can otherwise be directed (be rotated by 90 ° or other directions), and be interpreted accordingly herein It is using with space correlation description.

Join Fig. 1 to Fig. 3, the slide track component 1 includes the first slide track component 1a and the second slide track component 1b, each slide rail group There is part 1 upper rail 11, middle rail 12 and the lower rail 13 being mutually slidably matched, i.e. the first slide track component 1a to have mutually matched first In upper rail 11a, first rail 12a and the first lower rail 13a, the second slide track component 1b have mutually matched second upper rail 11b, Rail 12b and the second lower rail 13b in second.The lower rail 13 is fixed on by angle bar 6 on babinet, and the upper rail 11 is fixed on drawer On, the middle rail 12 is equipped between the upper rail 11 and lower rail 13；In use, the lower rail 13 is fixed, it is described Middle rail 12 and upper rail 11 can be pulled out or be promoted with respect to lower rail 13, and then drawer is driven to pull out or promote in the babinet, that is, It says, the lower rail 13 is orbit determination, and the middle rail 12 and upper rail 11 are dynamic rail.

In the present embodiment, the slide track component 1 further includes set on upper between the upper rail 11 and the middle rail 12 Townhouse ball 14, the lower townhouse ball 15 between the middle rail 12 and the lower rail 13 are opposite in upper rail 11 or middle rail 12 Lower rail 13 pulls out or can reduce friction during promoting, laborsaving.The upper townhouse ball 14 is located at opening for the upper rail 11 In mouth (not indicating), the lower townhouse ball 15 is located in the opening (not indicating) of the lower rail 13.Further, the first line of a couplet Row's ball 14 includes being fastened in the matrix (not indicating) on the upside of middle rail 12 and several balls (not indicating) on matrix, described Lower townhouse ball 15 includes the matrix (not indicating) for being fastened in 12 downside of middle rail and several balls (not indicating) on matrix.

In an embodiment of the present invention, the sliding track mechanism 100 further includes so that the first slide track component 1a and second is slided Rail assembly 1b keeps synchronization-moving lazy-tongs 2, and lazy-tongs 2 include in the two groups of auxiliary coordinated with two groups of slide track components 1 Rail assembly 5, the tumbler 21 of rail assembly 5, tensioner 23 and the fixing piece set on two groups of slide track components in the auxiliary 22, the tensioner 23 is wound on by tumbler 21 between the fixing piece 22 of two slide track components 1 so that the first slide track component 1a upper rail 11 or middle rail 12 movement when, the tensioner 23 by fixing piece 22 drive the second slide track component 1b upper rail 11 or 12 displacement same distance in the same direction of middle rail.

Here, on the basis of the prior art three saves sliding rail, rail assembly 5 in auxiliary is increased, and lazy-tongs 2 are turned It is set in auxiliary on rail assembly 5 to part 21, tumbler 21 and three does not contact each other between saving sliding rail, that is to say, that turns at this time It does not overlap each other to the sliding trace of part 21, the motion track and three section sliding rails of tensioner 23, even if between upper rail 11, lower rail 13 Gap reduce because of abrasion, the normal operation of tumbler 21 in lazy-tongs 2 will not be influenced, can effectively be solved existing The problem of tumbler 21 is interfered with upper rail 11 and/or lower rail 13 in technology.In addition, present embodiment can utilize it is common in the market Three section rail structures, it is only necessary to coordinate rail assembly in low-cost auxiliary, to can not only simplify manufacture difficulty, also Production cost can be substantially reduced.

In the present embodiment, together refering to Fig. 4 and Fig. 5, rail assembly 5 includes an at least limit base in each auxiliary 51 and at least one lead screw 52, the lead screw 52 be movably disposed in the limit base 51, the lead screw 52 connects described turn To part 21, when the upper rail 11 or the movement of middle rail 12, the limit base 51 remains stationary as, the lead screw 52 and the tumbler 21 is common mobile in the same direction relative to the limit base 51.Here, the tumbler 21 including pedestal 213 (213 ') and is set to pedestal Wheel disc (not indicating) in 213, the tensioner 23 are set around at the wheel disc, the lead screw 52 and the pedestal 213 (213 ') are fixed to each other, and can be fixed to each other by bolt 53 and/or bolt part 54 between lead screw 52 and pedestal 213 (213 '), turn It is not contacted between part 21, lead screw 52 and three section sliding rails.It should be noted that the lead screw 52 of present embodiment has centainly strong Degree, is unlikely to deform, and connects tumbler 21 by lead screw 52, the movement of tumbler 21 can be effectively guided, in addition, passing through limit Seat 51 pairs of lead screws 52 limit, can effectively control the moving direction of lead screw 52 so that the moving direction of lead screw 52 with it is described on The moving direction of rail 11 and/or middle rail 12 is consistent, that is to say, that the central axes of lead screw 52 and tensioner 23 parallel and in In same perpendicular.

In the present embodiment, limit base 51 can be fixedly arranged in lower rail 13, and but not limited to this, such as, it is possible to provide one Fagging 55, and limit base 51 is fixedly arranged in support plate 55, support plate 55 can be connect with lower rail 13 or babinet or angle bar 6, one In embodiment, support plate 55 can be integrally formed with the angle bar 6 of fixed lower rail 13.For the further effectively movement of control lead screw 52 Direction can also design a limiting slot 56, as shown in figure 5, in the upper of support plate 55 on support plate 55, lower rail 13 or limit base 51 A horizontal-extending limiting slot 56 is formed on surface, limiting slot 56 is fitted to each other with lead screw 52, when the lead screw 52 moves, institute State the moving direction that limiting slot 56 limits the lead screw 52.The limit base 51 includes the first insertion end of mutually separated setting 511 and second insertion end 512, the lead screw 52 be limited in first insertion end 511 and second insertion end 512, this In, mutually separated both ends are set, limit effect of the limit base 51 to lead screw 52 can be effectively improved, meanwhile, it also can guarantee lead screw The smoothness of 52 movements.

In the present embodiment, the tumbler 21 includes front steering part 211 and rear steering part 212, the front steering part 211 are located at the front end of the lead screw 52, and the rear steering part 212 is located at the rear end of the lead screw 52, and the limit base 51 is located at The intermediate region of the front steering part 211 and the rear steering part 212.Here, when the only silk of rail assembly 5 in an auxiliary When bar 52, front steering part 211 and rear steering part 212 are located at the front end and rear end of same root lead screw 52, before lead screw 52 drives Tumbler 211 and rear steering part 212 move together；When rail assembly 5 has the lead screw 52 more than one in an auxiliary, such as When rail assembly 5 has two lead screws 52 in auxiliary, the front end of one of front steering part 211 is located therein lead screw 52, rear steering part 212 It is located therein the rear end of another lead screw 52.It should be noted that the limit base 51 be located at the front steering part 211 and it is described after The intermediate region of tumbler 212, limit base 51 are located on the motion path of rear steering part 212, in order to ensure that rear steering part 212 can With swimmingly mobile forward, limit base 51 is preferably close to three section sliding rail front end area settings.

In the present embodiment, the front steering part 211 includes being respectively arranged on the first slide track component 1a, the second slide track component The first front steering part 211a of 1b and the second front steering part 211b, the rear steering part 212 include being respectively arranged on the first slide rail group Part 1a, the first rear steering part 212a of the second slide track component 1b and the second rear steering part 212b.

In conjunction with Fig. 6, the front steering part 211 is arranged to the tensioner 23 and is divided into after front steering part 211 Layer tensioner 231 and lower layer's tensioner 232, the rear steering part 212 include being opened respectively with the upper layer tensioner 231 and lower layer The tight matched upper tumbler 2121 of part 232 and lower tumbler 2122, the upper layer tensioner 231, lower layer's tensioner 232 are passed through It is wherein each extended over after the upper tumbler 2121 of a slide track component 1, lower tumbler 2122 to being fixed on another slide track component 1 Lower tumbler 2122 and upper tumbler 2121 are located at the upper rail 11 of two groups of slide track components 1 under in a manner of intersecting and link Rail 13.

The front steering part 211 is the wheel disc (not indicating) bypassed for tensioner 23, in vertical installation, the upper steering Part 2121 and lower tumbler 2122 are the wheel disc (not indicating) bypassed for tensioner 23, are in be horizontally mounted, the tensioner 23 It is located at same straight line in the position of the upper tumbler 2121 in the extreme higher position of the front steering part 211 and the tensioner 23 On so that the upper layer tensioner 231 is parallel to the lead screw 52；The tensioner 23 is located at the front steering part 211 most Lower position is located parallel to the position positioned at the lower tumbler 2122 on the straight line of lead screw 52, so that the lower layer Tensioner 232 is parallel to the lead screw 52；So that the sliding track mechanism 100 run it is smooth.

The fixing piece 22 includes being respectively arranged at least two upper fixing elements 221 in two upper rails 11 and being set at least one At least one lower fixing piece 222 in a lower rail 13.

During the slide track component 1 is opened, closes and open or close, fixed part 221 is always positioned at For 11 rear end of the upper rail between 12 front end of middle rail, the lower fixing piece 222 is always positioned at 13 front end of the lower rail to middle rail 12 Between rear end, it is mutually disengaged to avoid three section sliding rails, reduces abrasion of the tensioner 23 at tumbler 21 and fixing piece 22, extended Service life, while not influencing the sliding track mechanism 100 can be by the effective length of drawer pull-out babinet.

When slide track component 1 is opened completely, the rear portion of the upper rail 11 and the front of the middle rail 12 overlap, together In Shi Suoshu the rear portion of rail 12 and the front of the lower rail 13 overlap, to enhance slide track component 1 in opening state Literary stability, prevents drawer from shaking.Preferably, distance of the fixed part 221 away from 11 rear end of upper rail be the upper rail 11 with The half of the distance of 11 rear end of upper rail to 12 front end of middle rail when opening completely of middle rail 12；The lower fixing piece 222 is away from lower rail The distance of 13 front ends when opening for the lower rail 13 with middle rail 12 at a distance from 13 rear end of lower rail to 12 front end of middle rail completely Half, do not influence the sliding track mechanism 100 can by drawer pull out babinet effective length, and can to avoid the tumbler 21 with Fixing piece 22 collides or rubs, and prolongs the service life.When slide track component 1 is opened completely, it is assumed that 11 rear end of upper rail is in The distance of 12 front end of rail is L, then distance of the upper fixing element 221 apart from 11 rear end of upper rail is L/2；Before middle rail 12 rear end to lower rail 13 The distance at end is M, then it is M/2 to descend distance of the fixing piece 222 apart from 13 front end of lower rail.

The tensioner 23 is wound on the fixing piece 22 of two slide track components 1 by front steering part 211 and rear steering part 212 Between and be formed into a loop, i.e., the described tensioner 23 by front steering part 211 and rear steering part 212 change direction to connect described in Upper fixing element 221 and lower fixing piece 222.In the present invention, forming circuit refers to：Before the tensioner 23 is located at same fixing piece 22 Two parts of side and rear side are closely connected by the fixing piece 22, no breakpoint；Before the tensioner 23 is located at same fixing piece 22 Two parts of side and rear side are fixed on same sliding rail, without tumbler 21 between two fixing points.Certainly, of the invention specific real It applies in mode, can also not be formed into a loop as the case may be.

In an of the invention specific example, refering to Fig. 6, the fixing piece 22 includes the be set on the first slide track component 1a One upper fixing element 221a and first time fixing piece 222a, the second upper fixing element 221b on the second slide track component 1b, it is described It is three sections that tensioner 23 is divided by three fixing pieces 22：By the first front steering part 211a and connect first time fixing piece 222a and The first tensioner of first upper fixing element 221a passes through the first rear steering part 212a, the second rear steering part 212b and second successively Front steering part 211b and the second tensioner for connecting the first upper fixing element 221a and the second upper fixing element 221b, pass through second successively Rear steering part 212b and the first rear steering part 212a and the third for connecting the second upper fixing element 221b and first time fixing piece 222a Tensioner.First tensioner, the second tensioner and third tensioner are connected each other by fixing piece 22, form one and close The circuit of conjunction.

In pull drawer, when the first upper rail 11a stress pulls out distance a, the upper layer of the first slide track component 1a Tight part 231 is driven distance a by the first front steering part 211a and the first rear steering part 212a to lower layer's tensioner 232, and is tensioned Distance of the part 23 between the first front steering part 211a and the second rear steering part 212b is fixed, therefore second slide rail group Lower layer's tensioner 232 of part 1b by the second front steering part 211b, the second rear steering part 212b and the first rear steering part 212a to The upper layer tensioner 231 of first slide track component 1a is driven distance a；Again because of the second front steering part 211b and the second rear steering part The distance between 212b be it is fixed, therefore the upper layer tensioner 231 of the second slide track component 1b to lower layer's tensioner 232 be driven away from From a, at the same lower layer's tensioner 232 of the first slide track component 1a by the first front steering part 211a, the first rear steering part 212a and Second front steering part 211b, the second rear steering part 212b are driven distance a to the upper layer tensioner 231 of the second slide track component 1b.

The upper layer tensioner 231 of first slide track component 1a passes through the first upper fixing element 221a, first time fixing piece respectively 222a is fixed on the first upper rail 11a, the first lower rail 13a；The upper layer tensioner 231 of second slide track component 1b passes through solid on second Determine part 221b to be fixed on the second upper rail 11b.The length of the first tensioner, the second tight part and third tensioner is all fixed simultaneously 's.In pull drawer, when 11 stress of upper rail of the first slide track component 1a pulls out distance a, the first slide track component 1a's Upper layer tensioner 231 is driven lower layer's tensioner 232 of distance a, the second slide track component 1b to the first sliding rail to lower layer's tensioner 232 The upper layer tensioner 231 of component 1a is driven the upper layer tensioner 231 of distance a, the second slide track component 1b to the second slide track component 1b Lower layer's tensioner 232 be driven distance a, therefore the second upper rail 11b also pulls out distance a.Meanwhile the first slide track component 1a Lower layer's tensioner 232 is driven distance a to the upper layer tensioner 231 of the second slide track component 1b, since the length of third tensioner is It is fixed, therefore the second rear steering part 212b is pulled out forward.

When 11 stress of upper rail of the second slide track component 1b pulls out distance a, the length of the third tensioner is solid Fixed, third tensioner is by the second rear steering part 212b and the first rear steering part 212a to the upper rail 11 of the second slide track component 1b It is driven distance a, therefore the first rear steering part 212a of the first slide track component 1a is pulled out forward；Again because of first tensioner Length is fixed, therefore the upper rail 11 of the first slide track component 1a also pulls out distance a.In addition, due to upper rail 11 and middle rail 12 Between to be slidably connected, between middle rail 12 and lower rail 13 be also to be slidably connected, upper rail 11 it is mobile can drive in rail 12 move together It is dynamic, it can pull out distance to increase.

In another specific example of the present invention, refering to Fig. 7, component identical with a upper specific example uses identical mark Number, the fixing piece 22 include be set to the first slide track component 1a on the first upper fixing element 221a and first time fixing piece 222a, The second upper fixing element 221b on the second slide track component 1b and second time fixing piece 222b.

The tensioner 23 includes by the first front steering part 211a and connecting solid on first time fixing piece 222a and first Determine the first tensioner of part 221a, pass through the first rear steering part 212a, the second rear steering part 212b successively and connect and is solid on first The second tensioner for determining part 221a and second time fixing piece 222b by the second front steering part 212a and is connected to second time fixation The third tensioner of part 222b and the second upper fixing element 221b pass through the second rear steering part 212b and the first rear steering part successively 212a and the 4th tensioner for connecting the second upper fixing element 221b and first time fixing piece 222a.First tensioner, second Tensioner, third tensioner and the 4th tensioner are connected each other by fixing piece 22, form the circuit of a closure.This example Other explanations can refer to an example, details are not described herein.

In the following, introducing several specific implementation modes of rail assembly 5 in present invention auxiliary, identical structure uses identical volume Number.

As shown in figs. 1-7, in first embodiment of the invention, the sliding track mechanism 100 includes so that the first slide rail group It includes coordinating with two groups of slide track components 1 that part 1a and the second slide track component 1b, which keeps synchronization-moving lazy-tongs 2, lazy-tongs 2, Two groups of auxiliary in rail assembly 5a, in the auxiliary tumbler 21 of rail assembly 5a, tensioner 23 and be set to two groups of cunnings The fixing piece 22 of rail assembly, rail assembly 5a is located at the corresponding slide track component 1 close to the accommodating sky of drawer in each auxiliary Between side, the tensioner 23 is wound on by tumbler 21 between the fixing piece 22 of two slide track components 1 so that first slides When upper rail 11 or middle rail 12 movement of rail assembly 1a, the tensioner 23 is upper by second slide track component 1b's of the drive of fixing piece 22 12 displacement same distance in the same direction of rail 11 or middle rail.That is, in the present embodiment, rail assembly 5a is located at slide rail group in auxiliary The inside of part 1.

Here, on the basis of the prior art three saves sliding rail, rail assembly 5a in auxiliary is increased, and by lazy-tongs 2 Tumbler 21 is set in auxiliary on rail assembly 5a, and tumbler 21 and three does not contact each other between saving sliding rail, that is to say, that at this time Tumbler 21, tensioner 23 motion track and three section sliding rails sliding trace do not overlap each other, even if upper rail 11, lower rail 13 it Between gap reduce because of abrasion, the normal operation of tumbler 21 in lazy-tongs 2 will not be influenced, can effectively be solved existing There is the problem of tumbler 21 is interfered with upper rail 11 and/or lower rail 13 in technology.In addition, present embodiment can utilize in the market often The three section rail structures seen, it is only necessary to coordinate rail assembly in low-cost auxiliary, to can not only simplify manufacture difficulty, Production cost can also be substantially reduced.

Rail assembly 5a includes an a limit base 51a and lead screw 52a in each auxiliary, and the lead screw 52a is movably It is set in the limit base 51a, the lead screw 52a connections tumbler 21, when the upper rail 11 or the movement of middle rail 12, The limit base 51a is remained stationary as, and the lead screw 52a and the tumbler 21 are moved relative to the limit base 51a in the same direction jointly. Here, limit base 51a is in " recessed " shape, fixed by screw (not indicating) between the bottom surface and support plate 55a of limit base 51a, limit Position seat 51a further includes the first insertion end 511a and the second insertion end 512a, the first insertion end 511a and second for protruding out bottom surface The opening of insertion end 512a extends in the horizontal direction, and lead screw 52a is limited in the first insertion end 511a and described second and is inserted into It holds in 512a.Support plate 55a is horizontally disposed hard plate, can pass through screw institute between support plate 55a and angle bar 6 or lower rail 11 It states, certainly, support plate 55a can be also integrally formed with angle bar 6 or lower rail 11.Present embodiment can by the setting of limit base 51a Effectively to control the moving direction of lead screw 52a so that the shifting of the moving direction of lead screw 52a and the upper rail 11 and/or middle rail 12 Dynamic direction is consistent, that is to say, that the central axes of lead screw 52a are with tensioner 23 parallel and in same perpendicular.

In the present embodiment, the upper surface of support plate 55a is also formed with a limiting slot 56a, corresponding with lead screw 52a to set It sets, to enhance the control to the moving direction of lead screw 52a.

In the present embodiment, front steering part 211 is located at the front end of lead screw 52a, and rear steering part 212 is located at lead screw 52a's Rear end, the front steering part 211 include the first front steering part for being respectively arranged on the first slide track component 1a, the second slide track component 1b 211a and the second front steering part 211b, the rear steering part 212 include being respectively arranged on the first slide track component 1a, the second slide track component The first rear steering part 212a of 1b and the second rear steering part 212b.The fixing piece 22 is located at the slide track component 1 close to drawer The side of accommodating space, i.e. fixing piece 22 are located at the inside of slide track component 1, and fixing piece 22 includes being set on the first slide track component 1a The first upper fixing element 221a and first time fixing piece 222a, the second upper fixing element 221b on the second slide track component 1b, It is three sections that the tensioner 23 is divided by three fixing pieces 22：By the first front steering part 211a and connect first time fixing piece The first tensioner of 222a and the first upper fixing element 221a pass through the first rear steering part 212a, the second rear steering part 212b successively And second front steering part 211b and connect the first upper fixing element 221a and the second upper fixing element 221b the second tensioner, pass through successively It crosses the second rear steering part 212b and the first rear steering part 212a and connects the second upper fixing element 221b and first time fixing piece 222a Third tensioner.First tensioner, the second tensioner and third tensioner are connected each other by fixing piece 22, are formed The circuit of one closure.Certainly, the fixing piece 22 may also comprise the first upper fixing element on the first slide track component 1a 221a and first time fixing piece 222a, the second upper fixing element 221b on the second slide track component 1b and second time fixing piece 222b, at this point, tensioner 23 includes the first tensioner, the second tensioner, third tensioner and the 4th tensioner.Present embodiment Other explanations can refer to this specification other parts explanation, details are not described herein.

As illustrated in figs. 8-12, in second embodiment of the invention, the sliding track mechanism 100 further includes so that the first sliding rail Component 1a and the second slide track component 1b keep synchronization-moving lazy-tongs 2, and lazy-tongs 2 include matching with two groups of slide track components 1 Close two groups of auxiliary in rail assembly 5b, in the auxiliary tumbler 21 of rail assembly 5b, tensioner 23 and be set to two groups The fixing piece 22 of slide track component, rail assembly 5b includes that be located at the corresponding slide track component 1 close in each auxiliary And rail in two auxiliary far from drawer accommodating space both sides, the tensioner 23 are wound on two slide rail groups by tumbler 21 Between the fixing piece 22 of part 1 so that when upper rail 11 or middle rail 12 movement of the first slide track component 1a, the tensioner 23 passes through solid Determine the 12 displacement same distance in the same direction of upper rail 11 or middle rail that part 22 drives the second slide track component 1b.That is, in this embodiment party In formula, rail assembly 5b is located at the interior outside of corresponding slide track component 1 in each auxiliary.

Here, on the basis of the prior art three saves sliding rail, rail assembly 5b in auxiliary is increased, and by lazy-tongs 2 Tumbler 21 is set in auxiliary on rail assembly 5b, and tumbler 21 and three does not contact each other between saving sliding rail, that is to say, that at this time Tumbler 21, tensioner 23 motion track and three section sliding rails sliding trace do not overlap each other, even if upper rail 11, lower rail 13 it Between gap reduce because of abrasion, the normal operation of tumbler 21 in lazy-tongs 2 will not be influenced, can effectively be solved existing There is the problem of tumbler 21 is interfered with upper rail 11 and/or lower rail 13 in technology.In addition, present embodiment can utilize in the market often The three section rail structures seen, it is only necessary to coordinate rail assembly in low-cost auxiliary, to can not only simplify manufacture difficulty, Production cost can also be substantially reduced.It should be noted that compared to first embodiment, present embodiment will be in each auxiliary Rail assembly 5b is split into positioned at rail in two auxiliary in the inside of corresponding slide track component 1 and outside, by a part of tumbler 21 and Tensioner 23 is transferred in the intermediate region of slide track component 1 and box liner, can be effectively reduced rail assembly 5b in auxiliary and be occupied Be located at slide track component 1 close to the space of drawer accommodating space side, so as to accordingly increase drawer volume.

Rail includes a limit base 51b (51b ') and a lead screw 52b (52b ') in each auxiliary, and the lead screw 52b can It is actively set in the limit base 51b, the lead screw 52b connections tumbler 21, when the upper rail 11 or middle rail 12 When mobile, the limit base 51b is remained stationary as, and the lead screw 52b and the common relatively described limit base 51b of the tumbler 21 are same To movement.Here, limit base 51b be in " recessed " shape, two limit bases 51b, 51b ' bottom surface be connected to corresponding lower rail 11 respectively Close and far from the both side surface of drawer accommodating space.Limit base 51b further includes the first insertion end 511b for protruding out bottom surface And second the opening of insertion end 512b, the first insertion end 511b and the second insertion end 512b extend in the horizontal direction, lead screw 52b limits In the first insertion end 511b and the second insertion end 512b.Present embodiment can by the setting of limit base 51b Effectively to control the moving direction of lead screw 52b so that the shifting of the moving direction of lead screw 52b and the upper rail 11 and/or middle rail 12 Dynamic direction is consistent, that is to say, that the central axes of lead screw 52b are with tensioner 23 parallel and in same perpendicular.

In the present embodiment, front steering part 211 is located at the front end of lead screw 52b ', and rear steering part 212 is located at lead screw 52b's Rear end, that is to say, that rail assembly 5b has two lead screws (inside lead screw 52b and outside lead screw 52b ') in each auxiliary at this time, Front steering part 211 is located at the front end of outside lead screw 52b ', and rear steering part 212 is located at the rear end of inside lead screw 52b.The front steering Part 211 includes being respectively arranged on the first slide track component 1a, the first front steering part 211a of the second slide track component 1b and the second front steering Part 211b, the rear steering part 212 include the first rear steering part for being respectively arranged on the first slide track component 1a, the second slide track component 1b 212a and the second rear steering part 212b.The fixing piece includes being located at the corresponding slide track component 1 close and far from pumping The inside fixing piece 22 and outside fixing piece 22 ' of drawer accommodating space both sides, the inside fixing piece 22 include being set to the first sliding rail Inside the first upper fixing element 221a and the fixing piece 222a of inside first time on component 1a, on the second slide track component 1b in Side the second upper fixing element 221b and fixing piece 222b of inside second time；The outside fixing piece 22 ' includes being set to the first slide rail group It is outside the first upper fixing element 221a ' and the fixing piece 222a ' of outside first time on part 1a, outer on the second slide track component 1b Side the second upper fixing element 221b ' and the fixing piece 222b ' of outside second time；The tensioner 23 includes passing through the first front steering part 211a and the first tensioner for connecting first time fixing piece 222a ' and outside the first upper fixing element 221a ' of outside, successively by the One rear steering part 212a, the second rear steering part 212b simultaneously connect the first time fixing piece 222a in inside and the second upper fixing element of inside The second tensioner of 221b is passed through the first rear steering part 212a and the second rear steering part 212b and is connected solid on inside first successively The third tensioner for determining part 221a and the fixing piece 222b of inside second time by the second front steering part 211b and connects outside second The 4th tensioner of lower fixing piece 222b ' and outside the second upper fixing element 221b '.At this point, the second tensioner and third tensioner Positioned at the inside of the first slide track component 1a and the second slide track component 1b, the first tensioner and the 4th tensioner are located at the first slide rail group The outside of part 1a and the second slide track component 1b.Other explanations of present embodiment can refer to saying for this specification other parts Bright, details are not described herein.

As shown in Figure 13-Figure 17, in third embodiment of the invention, the sliding track mechanism 100 further includes so that first Slide track component 1a and the second synchronization-moving lazy-tongs 2 of slide track component 1b holdings, lazy-tongs 2 include and two groups of slide track components 1 cooperation two groups of auxiliary in rail assembly 5c, in the auxiliary tumbler 21 of rail assembly 5c, tensioner 23 and be set to two The fixing piece 22 of slide track component 1 is organized, rail assembly 5c is located at the corresponding slide track component 1 far from upper rail 11 in each auxiliary Side, the tensioner 23 is wound on by tumbler 21 between the fixing piece 22 of two slide track components 1 so that the first sliding rail When upper rail 11 or middle rail 12 movement of component 1a, the tensioner 23 drives the upper rail of the second slide track component 1b by fixing piece 22 11 or middle rail, 12 displacement same distance in the same direction.That is, in the present embodiment, rail assembly 5c is located at slide track component in auxiliary 1 downside.It should be noted that the case where sliding track mechanism 100 of present embodiment is located at drawer side suitable for sliding track mechanism, There is remaining space in the downside of slide track component 1 to accommodate rail assembly 5c in auxiliary, and first embodiment and the second embodiment party at this time The case where sliding track mechanism of formula is located at drawer bottom suitable for sliding track mechanism 100, but be not limited thereto.

Here, on the basis of the prior art three saves sliding rail, rail assembly 5c in auxiliary is increased, and by lazy-tongs 2 Tumbler 21 is set in auxiliary on rail assembly 5c, and tumbler 21 and three does not contact each other between saving sliding rail, that is to say, that at this time Tumbler 21, tensioner 23 motion track and three section sliding rails sliding trace do not overlap each other, even if upper rail 11, lower rail 13 it Between gap reduce because of abrasion, the normal operation of tumbler 21 in lazy-tongs 2 will not be influenced, can effectively be solved existing There is the problem of tumbler 21 is interfered with upper rail 11 and/or lower rail 13 in technology.In addition, present embodiment can utilize in the market often The three section rail structures seen, it is only necessary to coordinate rail assembly in low-cost auxiliary, to can not only simplify manufacture difficulty, Production cost can also be substantially reduced.It should be noted that rail assembly 5c in auxiliary is set to slide track component 1 by present embodiment Lower section, in assisting at this time the setting of rail assembly 5c do not interfere with the volume of drawer.

Rail assembly 5c includes an a limit base 51c and lead screw 52c in each auxiliary, and the lead screw 52c is movably It is set in the limit base 51c, the lead screw 52c connections tumbler 21, when the upper rail 11 or the movement of middle rail 12, The limit base 51c is remained stationary as, and the lead screw 52c and the tumbler 21 are moved relative to the limit base 51c in the same direction jointly. Here, support plate 55c is integrally formed with angle bar 6, and the upper surface of support plate 55c is contacted with the lower surface of lower rail 13, limit base 51c In " recessed " shape, the bottom surface of limit base 51c is connected to the bottom of support plate 55c.Limit base 51c further includes protrude out bottom surface first The opening of insertion end 511c and the second insertion end 512c, the first insertion end 511c and the second insertion end 512c are prolonged in the horizontal direction It stretches, lead screw 52c is limited in the first insertion end 511c and the second insertion end 512c.Present embodiment passes through limit base The setting of 51c can effectively control the moving direction of lead screw 52c so that the moving direction of lead screw 52c and the upper rail 11 and/or The moving direction of middle rail 12 is consistent, that is to say, that the central axes of lead screw 52c are with tensioner 23 parallel and in same vertical In plane.

In the present embodiment, front steering part 211 is located at the front end of lead screw 52c, and rear steering part 212 is located at lead screw 52c's Rear end, the front steering part 211 include the first front steering part for being respectively arranged on the first slide track component 1a, the second slide track component 1b 211a and the second front steering part 211b, the rear steering part 212 include being respectively arranged on the first slide track component 1a, the second slide track component The first rear steering part 212a of 1b and the second rear steering part 212b.The fixing piece 22 is by upper rail 11 and lower rail 13 (or support plate 55c) extend on the downside of support plate 55c, fixing piece 22 include the first upper fixing element 221a being set on the first slide track component 1a and First time fixing piece 222a, the second upper fixing element 221b on the second slide track component 1b, the tensioner 23 pass through three It is three sections that fixing piece 22, which divides,：By the first front steering part 211a and connect first time fixing piece 222a and the first upper fixing element 221a The first tensioner, successively pass through the first rear steering part 212a, the second rear steering part 212b and the second front steering part 211b and company The second tensioner of the first upper fixing element 221a and the second upper fixing element 221b are connect, passes through the second rear steering part 212b and the successively One rear steering part 212a and the third tensioner for connecting the second upper fixing element 221b and first time fixing piece 222a.Described first Tight part, the second tensioner are connected with third tensioner each other by fixing piece 22, form the circuit of a closure.Certainly, institute Fixing piece 22 is stated to may also comprise the first upper fixing element 221a on the first slide track component 1a and first time fixing piece 222a, set In the second upper fixing element 221b and second time fixing piece 222b on the second slide track component 1b, at this point, tensioner 23 includes first Tensioner, the second tensioner, third tensioner and the 4th tensioner.Other explanations of present embodiment can refer to this specification The explanation of other parts, details are not described herein.

In an embodiment of the present invention, it is including the first tensioner, the second tensioner, third tensioner with tensioner 23 Example, and by taking the sliding track mechanism 100 in first embodiment as an example, the sliding track mechanism 100 of other embodiment is also applicable, herein No longer it is described in detail one by one.As shown in Figure 18 and Figure 19, the sliding track mechanism 100 further includes electric machine assembly 3, and the electric machine assembly 3 has There are the first connecting pin 31 for winding or discharging the tensioner 23 and second connection end 32, is located in the tensioner 23 same Two parts of one fixing piece, 22 front and rear sides are intertwined and connected respectively on first connecting pin 31 and second connection end 32, institute It states and the tensioner 23, another one is shunk by one in the first connecting pin 31 and second connection end 32 when electric machine assembly 3 works It discharges the tensioner 23 and so that the tensioner 23 moves, and then the middle rail 12 and upper rail 11 are driven by fixing piece 22 Mobile, the drawer can realize automatic pull under the driving of motor, easy to use.

In the present embodiment, fixed part 221 include be fastened in upper holding firmware 2211 in the upper rail 11 and With the matched capstan nut 2212 of upper holding firmware, the upper layer tensioner 231 is through at quilt in the hole of the capstan nut 2212 It is fixed.The lower fixing piece 222 includes being fastened in lower holding firmware 2221 in the lower rail 13 and being set to the lower holding firmware First guide part 2222 and the second guide part 2223 on 2221, lower layer's tensioner 232 is by the first guide part 2222 and second Guide part 2223 is oriented to the electric machine assembly 3, and lower layer's tensioner 232 is fixed.In order to facilitate fixing piece 222 under understanding Structure, the first guide part 2222 and the second guide part 2223 of the lower fixing piece 222 are not moved with the lower holding firmware 2221 It is dynamic, it is still fixed together with tensioner 23.The hole of capstan nut 2212 is located parallel to lead screw with the upper tumbler 2121 On 52 same straight line, mutually matched first guide part 2222, the second guide part 2223, lower holding firmware 2221 and described lower turn Be located parallel on the same straight line of lead screw 52 to part 2122, thus the tensioner 23 fixed part 221 with it is lower solid Determine part 222 and fixes front and back remain parallel on the same straight line of the lead screw 52.

The sliding track mechanism 100 further includes the controller that the control electric machine assembly 3 works, when the controller receives The work of the electric machine assembly 3 is controlled when the signal for pulling out or promoting the drawer.The electric machine assembly 3 includes can forward and reverse rotation Motor, by motor driving and the transmission gear of adjustable rotational speed, the curled hair cylinder that is moved by drive gears turn.Described first connects It connects end 31 and second connection end 31 may be contained on the curled hair cylinder, and in the tensioner 23 before same fixing piece 22 Two part difference reverse-windings of both sides are on first connecting pin 31 and second connection end 32 afterwards.Therefore, in the volume When silk cylinder is rotated around a direction, one shrinks the tensioner 23, another one in the first connecting pin 31 and second connection end 32 It discharges the tensioner 23 and the tensioner 23 is moved.

First connecting pin 31 and second connection end 32 first with first time front and rear sides fixing piece 222a respectively Tight part is mutually intertwined and connected with third tensioner.First time fixing piece 222a, which has, is respectively tensioned the first tensioner and third Part is oriented to the first guide part 2222 and the second guide part 2223 of first connecting pin 31 and second connection end 32.The sliding rail Mechanism 100 further includes the first bushing (not indicating) being set between the first guide part 2222 and the first connecting pin 31, the tensioning Part of the part 23 between the first guide part 2222 and electric machine assembly 3 is arranged in first bushing, and the tensioner 23 exists Length between first guide part 2222 and electric machine assembly 3 is more than the distance between the first guide part 2222 and electric machine assembly 3；Institute It further includes the second bushing (not indicating) being set between the second guide part 2223 and second connection end 32, institute to state sliding track mechanism 100 It states part of the tensioner between the second guide part 2223 and electric machine assembly 3 to be arranged in second bushing, and the tensioning Part 23 is more than in the length between the second guide part 2223 and electric machine assembly 3 between the second guide part 2223 and electric machine assembly 3 Distance.Therefore, facilitate the lazy-tongs 2 with electric machine assembly 3 to coordinate to install.

Certainly, first tensioner, the second tensioner, third tensioner can be by 23, two tensionings of a tensioner Part 23 or three tensioners 23 form.In order to simplify assembling procedure, cost is reduced, a tensioner 23 is used in the present embodiment, The initiating terminal of the tensioner 23 is intertwined and connected in the first connecting pin 31, before the first guide part 2222, first is passed through in end successively Tumbler 211a, the first upper fixing element 221a, the first rear steering part 212a, the second rear steering part 212b, the second front steering part It is connected after 211b, the second upper fixing element 221b, the second rear steering part 212b, the first rear steering part 212a and the second guide part 2223 In second connection end 32.

When motor rotates in the forward direction, the first tensioner is wound on the curled hair cylinder, if the length of winding is a, is then located at The upper layer tensioner 231 of first slide track component 1a is to driving front distance a, due to the first front steering part 211a and the first rear steering part The distance between 212a be it is fixed, and tensioner 23 between the first front steering part 211a and the second rear steering part 212b away from From be it is fixed, therefore lower layer's tensioner 232 of the second slide track component 1b pass through after the second front steering part 211b, second turn It is driven distance a to part 212b and the first rear steering part 212a to the upper layer tensioner 231 of the first slide track component 1a；Again because of second The distance between front steering part 211b and the second rear steering part 212b are fixed, therefore the upper layer of the second slide track component 1b is tensioned Part 231 is driven distance a to lower layer's tensioner 232, while lower layer's tensioner 232 of the first slide track component 1a passes through the first front steering Part 211a, the first rear steering part 212a and the second front steering part 211b, the second rear steering part 212b are to the second slide track component 1b's Upper layer tensioner 231 is driven distance a, and it is a that third tensioner discharges length from the curled hair cylinder.

The upper layer tensioner 231 of first slide track component 1a passes through the first upper fixing element 221a, first time fixing piece respectively 222a is fixed on the first upper rail 11a, the first lower rail 13a；The upper layer tensioner 231 of second slide track component 1b passes through solid on second Determine part 221b to be fixed on the second upper rail 11b.The length of the first tensioner, the second tight part and third tensioner is all fixed simultaneously 's.When the first tensioner is to curled hair cylinder coiling length a, the upper layer tensioner 231 of the first slide track component 1a is to lower layer's tensioner 11 stress of upper rail of 232 transmission distance a, the first slide track component 1a pulls out distance a；The lower layer of second slide track component 1b is tensioned Upper layer tensioner 231 from part 232 to the upper layer tensioner 231 of the first slide track component 1a transmission distance a, the second slide track component 1b to Lower layer's tensioner 232 of second slide track component 1b is driven distance a, therefore the second upper rail 11b also pulls out distance a.Meanwhile the Three tensioners are driven distance a from release distance a on curled hair cylinder, refrigerator to the upper layer tensioner 231 of the second slide track component 1b, due to The length of third tensioner is fixed, therefore the second rear steering part 212b of the second slide track component 1b is pulled out forward.

Certainly, when the fixing piece 22 further includes second time fixing piece in the lower rail 13 of the second slide track component 1b When 222b, it can also coordinate above-mentioned electric machine assembly 3.It should be noted that the drawer of present embodiment also can be manually opened, by same The running of step mechanism 2 can also realize that the synchronous of drawer passes in and out, electric machine assembly 3 only there is provided the active force of an automatic shutter, because This, omits electric machine assembly, and drawer remains to realize manually synchronous disengaging.

Include the first tensioner, the second tensioner, third tensioner with tensioner 23 in another embodiment of the present invention And the 4th for tensioner, as shown in Figure 20 and Figure 21, the electric machine assembly 3 includes be intertwined and connected first tensioner and the The first motor component 33 of four tensioners, and be intertwined and connected third tensioner and the second tensioner the second electric machine assembly 34, The first motor component 33 shrinks or discharges the first tensioner and the 4th tensioner respectively, and the second electric machine assembly 34 is shunk respectively Or third tensioner and the second tensioner are discharged, so that the tensioner 23 moves, and then passes through fixing piece 22 and drive institute It states middle rail 12 and upper rail 11 moves.

The electric machine assembly 3 of present embodiment can refer to an embodiment with the mated condition of tensioner 23, herein no longer It repeats.

Further, in the present embodiment, it further includes turning after being set to two to join lazy-tongs 2 described in Figure 22 and Figure 23 To the tensioning sleeve 24 between part 212, at least one of two rear steering parts 212 is interior equipped with adjusting part 4, the adjusting group Part 4 is flexibly connected with the tensioning sleeve 24, and when the adjusting part 4, which is in, tightens state, the tensioning sleeve 24 drives described Tensioner 23 is far from the movement of the adjusting part 4 until length of the tensioner 23 between two rear steering parts 212 is more than The distance between two rear steering parts 212, and other parts of the tensioner 23 outside the tensioning sleeve 24 are constantly in drawing Tight state so that when upper rail 11 or middle rail 12 movement of the first slide track component 1a, the tensioner 23 is driven by fixing piece 22 The 12 displacement same distance in the same direction of upper rail 11 or middle rail of second slide track component 1b.

Here, compared to the embodiment of no tensioning sleeve 24, length of the tensioner 23 between two rear steering parts 212 More than the distance between two rear steering parts 212；It is easily installed, and without worrying the tensioner 23 outside the tensioning sleeve 24 Other parts can relax.In addition, for the ease of the installation of tensioner 23, longer tensioner 23 can be generally provided, when After tensioner 23 is assembled on fixing piece 22 and tumbler 21, tensioner 23 is easy to be in relaxed state, and present embodiment utilizes Adjusting part 4 can effectively adjust the elasticity of other tensioners 23 outside tensioning sleeve 24 so that other outside tensioning sleeve 24 Tight part 23 remains tensioned state, to improve synchronism and stability.

In a specific example of the invention, the adjusting part 4 is mounted on the rear steering part 212 of the second slide track component 1b It is interior, adjusting part is not present in the rear steering part of the first slide track component 1a, certainly, in other examples, in order to improve adjusting model Convenience is enclosed and adjusted, also can be respectively provided with adjusting part 4 in two rear steering parts 212.

Rear steering part 212 is fixed on the rear end of lead screw 52 by pedestal 213, in the first sides slide track component 1a, the tensioning It is provided with retaining collar 25 between set 24 and 23 pedestal 213 of the tensioner, the retaining collar 25 is vertical with the lead screw 52, Part of the tensioner 23 in the retaining collar 25 with extend past rear steering part 212 from the part after and turn close to rear Another part to part 212 is perpendicular and in the same plane so that the tensioner 23 sliding rail open or It runs smooth in closing process, saves the strength；When can reduce the tensioner 23 simultaneously around the rear steering part 212 movement Abrasion extends the service life.

In the second sides slide track component 1b, as shown in figure 12, the adjusting part 4 is located in the pedestal 213, the adjusting Component 4 includes upper adjusting part 4a and lower adjusting part 4b, and upper adjusting part 4a coordinates with upper tumbler 2121, is worn for adjusting The length of the tensioner 23 of tumbler 2121 is crossed, the lower adjusting part 4b coordinates with lower tumbler 2122, is worn for adjusting Cross down the length of the tensioner 23 of tumbler 2121.Below.The structure of adjusting part is described in detail for following adjusting part 4b.

As shown in figure 13, the pedestal 213 have be mutually perpendicular to and be connected first opening 2131 and second be open 2132, The end of the tensioning sleeve 24 is located at described second and is open at 2132, and the tensioner 23 being arranged in the tensioning sleeve 24 is by the Two openings 2132 pass through lower tumbler 2122 and extend to the first opening 2131, and are stretched out by the first opening 2131 and be fixed to At fixing piece 22.It should be noted that first the 2131, second opening 2132 of opening of upper adjusting part 4a and lower adjusting part 4b Can be the opening mutually completely cut off, to avoid getting lines crossed.

Specifically, the adjusting part 4 includes pin member 41 and drives the synchronous top spring 42 of the movement of pin member 41, institute It states and is formed with one first protrusion 2133 on pedestal 213, the pin member 41 is hollow structure, and on the inner wall of the pin member 41 It is formed with the second protrusion 411, first protrusion 2133 is enclosed with second protrusion 411 is set as an accommodating chamber (not indicating), institute Synchronous top spring 42 is stated just to be placed in the accommodating chamber.Here, the first protrusion 2133 and the second protrusion 411 are non-fully to close Structure, tensioner 23 can sequentially pass through the second protrusion 411, the first protrusion 2133, lower tumbler 2122 and extend to first and open At mouth 2131.

There is the synchronous top spring 42 first end 421 being oppositely arranged and second end 422, the tensioning sleeve 24 to have close The first end 241 of the synchronous top spring, the first end 421 abut first protrusion 2133, the second end 422 and institute State the both sides that first end 241 is connected to second protrusion 411 respectively.Here, since the diameter of tensioning sleeve 24 is more than tensioning The diameter of part 23 supports tensioning sleeve 24 at the second protrusion 411 using diameter difference, and tensioner 23 can just pass through the Two protrusions 411.

When the adjusting part 4 is in original state, the tensioning sleeve 24 supports the second protrusion 411, so that together In the accommodating chamber that the first protrusion 2133 and the second protrusion 411 surround, pin member 41 does not move the limit of spring 42 of step top.

When the adjusting part 4, which is in, tightens state, the tensioning sleeve 24 drives tensioner 23 to be moved towards the directions A, Tensioning sleeve 24 is detached from the second protrusion 411, meanwhile, the second protrusion 411 also disappears to the active force of synchronous top spring 42, at this time synchronous top Spring 42 can push the second protrusion 411 to be moved towards the directions A, that is to say, that synchronous top spring 42 drives pin member 41 towards the side A at this time To movement, until the second protrusion 411 supports tensioning sleeve 24 again.Pass through above-mentioned adjustment process, the tensioner in 24 left side of tensioning sleeve 23 are pulled a distance, length of the tensioner 23 between two rear steering parts 212 to be more than two rear steerings to the directions A The distance between part 212, that is to say, that at this point, the extra length of tensioner 23 has been consumed, the tensioner 23 is in institute The other parts stated outside tensioning sleeve 24 are in tensioned state.

In the present embodiment, the lazy-tongs 2 further include inserted sheet 26, if being formed on the outer wall of the pin member 41 Dry slot 412, the pedestal 213 correspond to and are formed with an at least socket 2134 at slot 412, and the inserted sheet 26 passes through the socket 2134 and be inserted into the slot 412 and so that the pin member 41 is relatively fixed with the pedestal 213.Here, when needing to adjust When saving 23 length of tensioner, inserted sheet 26 is extracted so that pin member 41 can be moved with opposite base 213, after the completion of adjusting, be inserted into Inserted sheet 26, with the position of Fixed latches part 41.

In the present embodiment, one end of the pin member 41 is also formed with positive stop end 413, is formed on the pedestal 213 There are the confined planes 2135 coordinated with the positive stop end 413, when the pin member 41 moves to extreme position, the positive stop end 413 towards the movement of the confined planes 2135 until the positive stop end 413 is interfered with each other with the confined planes 2135.Here, it limits The setting of face 2135 and positive stop end 413, on the one hand, pedestal 213, another party can be detached from during the motion to avoid pin member 41 Face can also limit the mobile range of pin member 41.

The present invention also provides a kind of refrigerators, including sliding track mechanism as described above 100.

In conclusion the sliding track mechanism 100 of the present invention, tensioner 23 are wound on two slide track components 1 by tumbler 21 Fixing piece 22 between, and the upper rail 11 of the one of sliding rail of 23 interconnection of the tensioner and another slide track component 1 Lower rail 13 so that when upper rail 11 or middle rail 12 movement of the first slide track component 1a, the tensioner 23 is driven by fixing piece 22 The 12 displacement same distance in the same direction of upper rail 11 or middle rail of second slide track component 1b is realized the synchronizing moving of two groups of slide track components 1, is kept away Exempt from draw process because it is firmly uneven and caused by deflection or wave phenomenon, and can be in any position in draw process Drawer is locked, muting function is good in whole process；By increasing rail assembly 5 in auxiliary, and tumbler 21 is set in auxiliary On rail assembly 5, the variation in gap does not interfere with the normal operation of tumbler 21 between upper rail 11, lower rail 13, to ensure same Walk the stability of mechanism 2；By the mutual cooperation of electric machine assembly 3 and lazy-tongs 2, when the electric machine assembly 3 works so that even The tensioner 23 for being connected to the electric machine assembly 3 moves, and then drives the middle rail 12 and upper rail 11 to move by fixing piece 22 It is dynamic, realize automatic pull drawer, it is easy to use；By setting adjusting part 4, the elasticity of tensioner 23 can be effectively adjusted, Improve user experience.

It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book With the other embodiment of understanding.

The series of detailed descriptions listed above only for the present invention feasible embodiment specifically Bright, they are all without departing from equivalent implementations made by technical spirit of the present invention not to limit the scope of the invention Or change should all be included in the protection scope of the present invention.

Claims

1. a kind of sliding track mechanism is pulled out or is promoted in babinet for drawer, including the first slide track component being oppositely arranged and Two slide track components, each slide track component have upper rail, middle rail and the lower rail being mutually slidably matched, it is characterised in that：The sliding rail Mechanism further includes so that the first slide track component and the synchronization-moving lazy-tongs of the second slide track component and electric machine assembly, lazy-tongs Include rail assembly, the tumbler of rail assembly, tensioner in the auxiliary in the two groups of auxiliary coordinated with two groups of slide track components And the fixing piece set on two groups of slide track components, the tensioner by tumbler be wound on two slide track components fixing piece it Between so that when the upper rail of the first slide track component or middle rail move, the tensioner drives the second slide track component by fixing piece Upper rail or middle rail displacement same distance in the same direction；The electric machine assembly has to wind or discharge the first connection of the tensioner End and second connection end, the tensioner includes the first part and second part positioned at same fixing piece front and rear sides, described First part is intertwined and connected on first connecting pin, and the second part is intertwined and connected in the second connection end, institute It is shunk described in the tensioner, another one release by one in the first connecting pin and second connection end when stating electric machine assembly work Tensioner and make tensioner movement, and then drive the middle rail and upper rail to move by fixing piece；Each auxiliary Middle rail assembly includes an at least limit base and an at least lead screw, and the lead screw is movably disposed in the limit base, described Lead screw connects the tumbler, and when the upper rail or middle rail move, the limit base remains stationary as, the lead screw and described turn It is moved in the same direction relative to the limit base jointly to part.

2. sliding track mechanism according to claim 1, it is characterised in that：The limit base is fixedly arranged on the lower rail or babinet On.

3. sliding track mechanism according to claim 1, it is characterised in that：The central axes of the lead screw are flat with the tensioner Row.

4. sliding track mechanism according to claim 1, it is characterised in that：The fixing piece includes being set on the first slide track component The first upper fixing element and first time fixing piece, the second upper fixing element on the second slide track component；The tumbler includes Set on cooperation the first slide track component auxiliary in rail assembly the first front steering part and the first rear steering part, be set to cooperation second slide The the second front steering part and the second rear steering part of rail assembly in the auxiliary of rail assembly；The tensioner includes passing through the first front steering Part and the first tensioner for connecting first time fixing piece and the first upper fixing element, turn after the first rear steering part, second successively To the second tensioner of part and the second front steering part and connection the first upper fixing element and the second upper fixing element, successively after second Tumbler and the first rear steering part and the third tensioner for connecting the second upper fixing element and first time fixing piece, first connection End and second connection end are mutually intertwined and connected with the first tensioner of first time fixing piece front and rear sides and third tensioner respectively.

5. sliding track mechanism according to claim 4, it is characterised in that：First time fixing piece has respectively by first Tight part and third tensioner are oriented to the first guide part and the second guide part of first connecting pin and second connection end.

6. sliding track mechanism according to claim 5, it is characterised in that：The sliding track mechanism further includes being set to the first guide part The first bushing between the first connecting pin, part of the tensioner between the first guide part and electric machine assembly are arranged in institute It states in the first bushing, length of the tensioner between the first guide part and electric machine assembly is more than the first guide part and motor group The distance between part；The sliding track mechanism further includes the second bushing being set between the second guide part and second connecting portion, described Part of the tensioner between the second guide part and electric machine assembly is arranged in second bushing, and the tensioner is Length between two guide parts and electric machine assembly is more than the distance between the second guide part and electric machine assembly.

7. sliding track mechanism according to claim 1, it is characterised in that：The electric machine assembly include can forward and reverse rotation electricity Machine, the transmission gear for adjusting rotating speed, the curled hair cylinder moved by drive gears turn, first connecting pin and second connection end are equal It is set on the curled hair cylinder, and two parts in the tensioner positioned at same fixing piece front and rear sides reversely twine respectively It is wound in first connecting pin and second connection end.

8. sliding track mechanism according to claim 1, it is characterised in that：The tumbler includes being fixed on rail in each auxiliary The front steering part and rear steering part of component front and back end, the fixing piece include the upper rail and lower rail for being respectively arranged on the first slide track component The first upper fixing element and first time fixing piece, the upper rail and lower rail that are respectively arranged on the second slide track component the second upper fixing element and Second time fixing piece, the tensioner include by two rear steering parts and connecting first time fixing piece and the second upper fixing element First tensioner, by two rear steering parts and connect the first upper fixing element and second time fixing piece the second tensioner, it is described Electric machine assembly includes be intertwined and connected respectively the first motor component and the second motor group of first tensioner and the second tensioner Part, the first motor component and the second electric machine assembly shrink or discharge respectively the first tensioner and the second tensioner and make institute Tensioner movement is stated, and then drives the middle rail and upper rail to move by fixing piece.

9. a kind of refrigerator, it is characterised in that include the sliding track mechanism as described in any one of claim 1-8.