CN106016938B - Sliding track mechanism and there is its refrigerator - Google Patents

Abstract

The invention discloses a slide rail mechanism and a refrigerator with the slide rail mechanism. The slide rail mechanism is used to pull out or push the drawer in the cabinet. Each slide rail assembly has an upper rail, a middle rail and a lower rail. The slide rail mechanism also includes a synchronous Mechanism, the synchronous mechanism includes two sets of auxiliary middle rail assemblies, steering pieces and tensioning pieces set on the auxiliary middle rail assemblies, and fixing pieces set on two sets of slide rail assemblies. Each auxiliary middle rail assembly includes a corresponding slide rail The assembly is close to and away from the two auxiliary middle rails on both sides of the drawer accommodation space, and the tension member is placed between the fixing parts of the two slide rail assemblies through the steering piece, so that the upper rail or middle rail of the first slide rail assembly moves At this time, the tension member drives the upper rail or the middle rail of the second slide rail assembly to displace the same distance in the same direction through the fixing member. In the present invention, the auxiliary middle rail assembly is added, and the steering element is arranged on the auxiliary middle rail assembly. In this way, the change of the gap between the upper rail and the lower rail will not affect the normal operation of the steering element, thereby ensuring the stability of the synchronization mechanism.

Description

Slide rail mechanism and refrigerator with same

technical field

The invention relates to the field of household appliances, in particular to a slide rail mechanism and a refrigerator having the same.

Background technique

At present, the three-section slide rails on the market mainly have the following problems in practical application: First, noise is generated during use: the existing three-section slide rails use the upper rail to run first, and when the upper rail travel distance reaches the extreme, use the upper rail Contact and collide with the limit device of the middle rail, and pull out the middle rail; also use the limit device of the middle rail and the lower rail to contact and collide, to reach the distance that the middle rail is pulled to reach the pole; and the limit device is between the upper rail and the middle rail , The noise of "peddling, pedaling" is generated during the contact and collision between the middle rail and the lower rail, which brings high-frequency noise to the user. Secondly, left and right shaking occurs during use: the existing three-section slide rails are mostly used in pairs in practical applications, and the operation mode described above is adopted. At the same time, the transmission between the three-section slide rails uses several steel balls as the sliding device between the rails. ; Therefore, the three-section slide rails cannot be locked with each other, and there is reserved space for lifting and shrinking. In actual use, the force when pulling out and the direction of the running force of the slide rail are not on the center line of the slide rail, resulting in a pair of three-section slide rails. The surface of the device pulled out by the slide rail will appear one in front and one behind, and at any position after being pulled out, when the force on both sides of the hands is different, it will shake left and right, which will bring safety hazards to users.

The existing three-section slide rails on the market are affected by cost, standard process control and reliability. The gap distance between the upper rail and the lower rail is generally 2mm. In the prior art, such as our company’s patent application with the application number CN201410372586.4 as an example, a synchronous mechanism can be added to the three-section slide rails to realize the synchronous entry and exit of the slide rails on both sides. The steering part of the synchronous mechanism includes a base, The base must be installed on the middle rail and the entire synchronization mechanism can achieve the expected synchronous mute effect, that is to say, the base must be installed within a gap of 2mm. In addition, in order to ensure the strength of the base, the size of the connecting part between the base and the middle rail should not be too small, preferably set at a height of 1.8mm. In this way, the distance between the upper rail and the connecting part is approximately 0.1mm, and the distance between the lower rail and the connection part is also approximately 0.1mm. In practical application, with the increase in the number of times the three-section slide rail is used, the internal steel balls and the upper rail, lower rail, and middle rail are prone to wear, resulting in a gradual decrease in the gap distance between the upper rail and the lower rail. The distance between the rail and the connecting portion of the base is extremely small. At this time, the reduction of the gap distance may easily cause interference between the upper rail and/or the lower rail and the connecting portion of the base, or even jamming. Therefore, there are problems in the reliability of the three-section slide rail in the prior art.

Contents of the invention

The object of the present invention is to provide a sliding rail mechanism and a refrigerator with the same.

In order to achieve one of the objectives of the above invention, an embodiment of the present invention provides a slide rail mechanism for pulling out or pushing a drawer in a box, including a first slide rail assembly and a second slide rail assembly oppositely arranged, each slide The rail assembly has an upper rail, a middle rail and a lower rail that are slidably matched to each other. The slide rail mechanism also includes a synchronization mechanism that keeps the first slide rail assembly and the second slide rail assembly moving synchronously. The synchronization mechanism includes two sets of slide rails. The two sets of auxiliary middle rail assemblies matched with the components, the steering parts and tensioning parts arranged on the auxiliary middle rail assemblies, and the fixing parts arranged on the two sets of slide rail assemblies, each of the auxiliary middle rail assemblies includes the corresponding The slide rail assembly is close to and away from the two auxiliary middle rails on both sides of the drawer accommodating space, and the tension member is wound between the fixing parts of the two slide rail assemblies through the steering piece, so that the first slide rail assembly When the upper rail or the middle rail moves, the tension member drives the upper rail or the middle rail of the second slide rail assembly to displace the same distance in the same direction through the fixing member.

As a further improvement of an embodiment of the present invention, each of the auxiliary middle rails includes a limit seat and a screw rod, the screw rod is movably arranged in the limit seat, and the screw rod is connected to the steering member , when the upper rail or the middle rail moves, the limit seat remains stationary, and the screw rod and the steering member move in the same direction relative to the limit seat.

As a further improvement of an embodiment of the present invention, the limit seat is fixed on the lower rail.

As a further improvement of an embodiment of the present invention, the two limit seats of each auxiliary middle rail assembly are respectively located on two side surfaces of the corresponding lower rail close to and away from the drawer accommodating space.

As a further improvement of an embodiment of the present invention, the limit seat includes a first insertion end and a second insertion end that are spaced apart from each other, and the screw rod is limited in the first insertion end and the second insertion end .

As a further improvement of an embodiment of the present invention, the central axis of the screw rod is parallel to the tension member.

As a further improvement of an embodiment of the present invention, the steering member includes a base and a wheel set inside the base, the tension member is wound around the wheel, and the screw rod and the base fixed to each other.

As a further improvement of an embodiment of the present invention, the steering member includes a front steering member and a rear steering member, and the screw rods include inner screw rods located on both sides of the corresponding slide rail assembly close to and away from the drawer accommodating space. and the outer screw rod, the rear steering member is located at the rear end of the inner screw rod, and the front steering member is located at the front end of the outer screw rod.

As a further improvement of an embodiment of the present invention, the fixing member includes an inner fixing member and an outer fixing member respectively located on both sides of the corresponding slide rail assembly close to and away from the drawer accommodating space, and the inner fixing member includes a The inner first upper fixing part and the inner first lower fixing part on the first slide rail assembly, the inner second upper fixing part and the inner second lower fixing part arranged on the second sliding rail assembly; the outer fixing part includes The outer first upper fixing piece and the outer first lower fixing piece arranged on the first slide rail assembly, the outer second upper fixing piece and the outer second lower fixing piece arranged on the second slide rail assembly; the steering piece Including the first front steering piece and the first rear steering piece set on the auxiliary middle rail assembly matching the first slide rail assembly, the second front turning piece and the second rear steering piece set on the auxiliary middle rail assembly matching the second slide rail assembly Steering piece; the tensioning piece includes a first tensioning piece that passes through the first front steering piece and connects the first lower fixing piece on the outer side and the first upper fixing piece on the outer side, and passes through the first rear steering piece and the second rear steering piece in turn And connect the inner first lower fixing part and the second tensioning part of the inner second upper fixing part, pass through the first rear steering part and the second rear steering part in turn and connect the inner first upper fixing part and the inner second lower fixing part The third tension member passes through the second front steering member and connects the second lower fixing member on the outside with the fourth tension member on the second upper fixing member on the outside.

In order to achieve one of the objectives of the above invention, an embodiment of the present invention provides a refrigerator, including the above-mentioned slide rail mechanism.

Compared with the prior art, the beneficial effect of the present invention is that: the present invention increases the auxiliary middle rail assembly, and sets the steering piece on the auxiliary middle rail assembly, so that the change of the gap between the upper rail and the lower rail will not affect the The normal operation of the steering member ensures the stability of the synchronous mechanism.

Description of drawings

Fig. 1 is a schematic diagram of the initial state of the slide rail mechanism according to the first embodiment of the present invention;

Fig. 2 is an exploded view of the slide mechanism of the first embodiment of the present invention;

Fig. 3 is a schematic diagram of the sliding state of the slide rail mechanism according to the first embodiment of the present invention;

Fig. 4 is a schematic structural view of an auxiliary middle rail assembly according to the first embodiment of the present invention;

Fig. 5 is an exploded view of an auxiliary middle rail assembly according to the first embodiment of the present invention;

Fig. 6 is a schematic diagram of the distribution of fixtures in a specific example of the present invention;

Fig. 7 is a schematic diagram of the distribution of fixtures in another specific example of the present invention;

Fig. 8 is a schematic diagram of the initial state of the slide rail mechanism according to the second embodiment of the present invention;

Fig. 9 is an exploded view of the slide mechanism of the second embodiment of the present invention;

Fig. 10 is a schematic diagram of the sliding state of the slide rail mechanism according to the second embodiment of the present invention;

Fig. 11 is a schematic structural view of an auxiliary middle rail assembly according to the second embodiment of the present invention;

Fig. 12 is an exploded view of an auxiliary middle rail assembly according to the second embodiment of the present invention;

Fig. 13 is a schematic diagram of the initial state of the slide rail mechanism according to the third embodiment of the present invention;

Fig. 14 is an exploded view of the slide mechanism of the third embodiment of the present invention;

Fig. 15 is a schematic diagram of the sliding state of the slide rail mechanism according to the third embodiment of the present invention;

Fig. 16 is a schematic structural view of an auxiliary middle rail assembly according to the third embodiment of the present invention;

Fig. 17 is an exploded view of an auxiliary middle rail assembly according to a third embodiment of the present invention;

18 and 19 are schematic diagrams of a slide rail mechanism with a motor assembly according to an embodiment of the present invention;

Fig. 20 and Fig. 21 are schematic diagrams of a slide rail mechanism with a motor assembly according to another embodiment of the present invention;

Fig. 22 is a longitudinal sectional view of a rear steering member according to an embodiment of the present invention;

Fig. 23 is a transverse sectional view of a rear steering gear according to an embodiment of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

As shown in FIG. 1 , the present invention provides a slide rail mechanism 100 for pulling out or pushing a drawer (not shown) in a box, including two sets of slide rail assemblies 1 oppositely arranged. Of course, the slide rail mechanism 100 can also be used for drawing, expanding or contracting other structures. It should be noted that two sets of slide rail assemblies 1 can be arranged left and right. In other embodiments, two sets of slide rail assemblies 1 can also be arranged up and down. In the present invention, two sets of slide rail assemblies 1 are arranged left and right as an example.

In addition, terms such as "upper", "upper", "lower", "below", "left", "right", etc. used herein to indicate relative positions in space are described for the purpose of description as shown in the accompanying drawings. The relationship of one element or feature shown to another element or feature. The terms of spatial relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to Figures 1 to 3, the slide rail assembly 1 includes a first slide rail assembly 1a and a second slide rail assembly 1b, each slide rail assembly 1 has an upper rail 11, a middle rail 12 and a lower rail 13 that are slidably engaged with each other , that is, the first slide rail assembly 1a has a first upper rail 11a, a first middle rail 12a, and a first lower rail 13a that cooperate with each other, and the second slide rail assembly 1b has a second upper rail 11b that cooperates with each other, a second The middle rail 12b and the second lower rail 13b. The lower rail 13 is fixed on the box body through the angle iron 6, the upper rail 11 is fixed on the drawer, and the middle rail 12 is co-located between the upper rail 11 and the lower rail 13; during use, the The lower rail 13 is fixed, and the middle rail 12 and the upper rail 11 can be pulled out or pushed relative to the lower rail 13, thereby driving the drawer to be pulled out or pushed into the box, that is to say, the lower rail 13 is a fixed rail , the middle rail 12 and the upper rail 11 are moving rails.

In this embodiment, the slide rail assembly 1 further includes an upper row of balls 14 arranged between the upper rail 11 and the middle rail 12, and an upper row of balls 14 arranged between the middle rail 12 and the lower rail 13. The lower row of balls 15 between them can reduce friction and save labor when the upper rail 11 or the middle rail 12 is pulled out or advanced relative to the lower rail 13 . The upper row of balls 14 is located in an opening (not marked) of the upper rail 11 , and the lower row of balls 15 is located in an opening (not marked) of the lower rail 13 . Further, the upper row of balls 14 includes a base (not marked) fixed on the upper side of the middle rail 12 and a number of balls (not marked) arranged on the base, and the lower row of balls 15 includes a base fixed on the middle rail 12 12 The base body (not marked) on the lower side and some balls (not marked) arranged on the base body.

In one embodiment of the present invention, the slide rail mechanism 100 also includes a synchronization mechanism 2 that keeps the first slide rail assembly 1a and the second slide rail assembly 1b moving synchronously. The two sets of auxiliary middle rail assemblies 5, the steering pieces 21, the tensioning pieces 23 provided on the auxiliary middle rail assemblies 5, and the fixing pieces 22 provided on the two sets of slide rail assemblies, the tensioning pieces 23 pass through the turning pieces 21 Wrapped between the fixing pieces 22 of the two slide rail assemblies 1, so that when the upper rail 11 or the middle rail 12 of the first slide rail assembly 1a moves, the tensioning piece 23 drives the second slide rail assembly through the fixing piece 22 The upper rail 11 or the middle rail 12 of 1b are displaced by the same distance in the same direction.

Here, on the basis of the three-section slide rails in the prior art, an auxiliary middle rail assembly 5 is added, and the steering piece 21 of the synchronous mechanism 2 is arranged on the auxiliary middle rail assembly 5, and the steering piece 21 and the three-section slide rail are not separated from each other. Contact, that is to say, at this time, the moving tracks of the steering member 21 and the tension member 23 do not overlap with the sliding tracks of the three-section slide rails, even if the gap between the upper rail 11 and the lower rail 13 is reduced due to wear, it does not overlap. It will affect the normal operation of the steering member 21 in the synchronous mechanism 2, and can effectively solve the problem of interference between the steering member 21 and the upper rail 11 and/or the lower rail 13 in the prior art. In addition, this embodiment can utilize the common three-section slide rail structure in the market, and only needs to cooperate with the low-cost auxiliary middle rail assembly, thereby not only simplifying the manufacturing difficulty, but also greatly reducing the production cost.

In this embodiment, referring to Fig. 4 and Fig. 5 together, each of the auxiliary middle rail components 5 includes at least one limit seat 51 and at least one threaded rod 52, and the threaded rod 52 is movably arranged on the limit position. In the seat 51, the screw rod 52 is connected to the steering member 21. When the upper rail 11 or the middle rail 12 moves, the limit seat 51 remains still, and the screw rod 52 and the steering member 21 and move in the same direction relative to the limit seat 51. Here, the steering member 21 includes a base 213 ( 213 ′) and a wheel disc (not shown) disposed in the base 213 , the tension member 23 is wound around the wheel disc, and the screw rod 52 and the base 213 (213') are fixed to each other, and the screw rod 52 and the base 213 (213') can be fixed to each other by a bolt 53 and/or a bolt 54, and the steering member 21, the screw rod 52 and the three-section slide rail There is no contact between them. It should be noted that the screw rod 52 of this embodiment has a certain strength, and it is not easily deformed. The movement of the steering member 21 can be effectively guided by connecting the steering member 21 through the screw rod 52 . The limit of 52 can effectively control the moving direction of the screw mandrel 52, so that the moving direction of the screw mandrel 52 is consistent with the moving direction of the upper rail 11 and/or the middle rail 12, that is to say, the central axis of the screw mandrel 52 Parallel to tension member 23 and in the same vertical plane.

In this embodiment, the limit seat 51 can be fixed on the lower rail 13, but it is not limited thereto. For example, a support plate 55 can be provided, and the limit seat 51 can be fixed on the support plate 55 to support The plate 55 can be connected with the lower rail 13 or the box body or the angle iron 6 . In one embodiment, the support plate 55 can be integrally formed with the angle iron 6 fixing the lower rail 13 . In order to further effectively control the moving direction of the screw rod 52, a limit groove 56 can also be designed on the support plate 55, the lower rail 13 or the limit seat 51, as shown in FIG. The limiting groove 56 extending horizontally, the limiting groove 56 cooperates with the threaded rod 52 , when the threaded rod 52 moves, the limiting groove 56 restricts the moving direction of the threaded rod 52 . The limiting seat 51 includes a first inserting end 511 and a second inserting end 512 that are spaced apart from each other, and the screw rod 52 is limited in the first inserting end 511 and the second inserting end 512. Here, it is set The two ends separated from each other can effectively improve the position-limiting effect of the position-limiting seat 51 on the screw rod 52 , and at the same time, can also ensure the smooth movement of the screw rod 52 .

In this embodiment, the steering member 21 includes a front steering member 211 and a rear steering member 212, the front steering member 211 is located at the front end of the screw rod 52, and the rear steering member 212 is located at the front end of the screw rod 52. At the rear end, the limiting seat 51 is located in the middle area of the front steering member 211 and the rear steering member 212 . Here, when an auxiliary middle rail assembly 5 has only one screw mandrel 52, the front steering member 211 and the rear steering member 212 are respectively located at the front end and the rear end of the same screw mandrel 52, and the screw mandrel 52 drives the front steering member 211 and the rear steering member When an auxiliary middle rail assembly 5 has more than one screw mandrel 52, for example, when the auxiliary middle rail assembly 5 has two screw mandrels 52, the front turning member 211 is positioned at the front end of one of the screw mandrels 52, and the rear The turning member 212 is located at the rear end of the other screw rod 52 . It should be noted that the limit seat 51 is located in the middle area of the front steering member 211 and the rear steering member 212, and the limit seat 51 is located on the movement path of the rear steering member 212. In order to ensure that the rear steering member 212 can To move forward smoothly, the limit seat 51 is preferably set close to the front end area of the three-section slide rail.

In this embodiment, the front steering member 211 includes a first front steering member 211a and a second front steering member 211b respectively arranged on the first slide rail assembly 1a and the second slide rail assembly 1b, and the rear steering member 212 It includes a first rear steering member 212a and a second rear steering member 212b respectively disposed on the first slide rail assembly 1a and the second slide rail assembly 1b.

6, the front turning member 211 is set such that the tensioning member 23 is divided into an upper layer tensioning member 231 and a lower layer tensioning member 232 after passing through the front turning member 211, and the rear steering member 212 includes The upper tension member 231 and the lower tension member 232 match the upper steering member 2121 and the lower steering member 2122, and the upper tension member 231 and the lower tension member 232 pass through the upper steering member 2121, The lower turning member 2122 respectively extends to the lower turning member 2122 and the upper turning member 2121 fixed on another slide rail assembly 1 , and is respectively located on the upper rail 11 and the lower rail 13 of the two sets of slide rail assemblies 1 in a cross linkage manner.

The front steering member 211 is a wheel disc (not shown) for the tension member 23 to bypass, which is installed vertically, and the upper steering member 2121 and the lower steering member 2122 are wheel discs for the tension member 23 to bypass (not marked), which is installed horizontally, the highest position of the tension member 23 on the front steering member 211 and the position of the tension member 23 on the upper steering member 2121 are located on the same straight line, so that the The upper tension member 231 is parallel to the screw rod 52; the tension member 23 is located at the lowest position of the front steering member 211 and the position of the lower steering member 2122 is located on a straight line parallel to the screw rod 52, So that the lower tension member 232 is parallel to the threaded rod 52 ; thus, the slide rail mechanism 100 runs smoothly.

The fixing member 22 includes at least two upper fixing members 221 respectively disposed on two upper rails 11 and at least one lower fixing member 222 disposed on at least one lower rail 13 .

During the opening, closing and opening or closing process of the slide rail assembly 1, the upper fixing member 221 is always located between the rear end of the upper rail 11 and the front end of the middle rail 12, and the lower fixing member 222 is always located at the front end of the middle rail 12. Between the front end of the lower rail 13 and the rear end of the middle rail 12, to avoid the separation of the three slide rails from each other, reduce the wear of the tension member 23 at the steering member 21 and the fixing member 22, and prolong the service life without affecting the slide rail The mechanism 100 can pull the drawer out the effective length of the case.

When the slide rail assembly 1 is fully opened, the rear portion of the upper rail 11 partially overlaps the front portion of the middle rail 12, and the rear portion of the middle rail 12 partially overlaps the front portion of the lower rail 13. overlap to enhance the stability of the slide rail assembly 1 in the open state and prevent the drawer from shaking. Preferably, the distance between the upper fixing member 221 and the rear end of the upper rail 11 is half of the distance from the rear end of the upper rail 11 to the front end of the middle rail 12 when the upper rail 11 and the middle rail 12 are fully opened; The distance between the part 222 and the front end of the lower rail 13 is half of the distance from the rear end of the lower rail 13 to the front end of the middle rail 12 when the lower rail 13 and the middle rail 12 are fully opened. The effective length of the box is drawn out, and the collision or friction between the steering member 21 and the fixing member 22 can be avoided, thereby prolonging the service life. When the slide rail assembly 1 is fully opened, assuming that the distance from the rear end of the upper rail 11 to the front end of the middle rail 12 is L, the distance between the upper fixing member 221 and the rear end of the upper rail 11 is L/2; The distance between the front end of the lower rail 13 is M, and the distance between the lower fixing part 222 and the front end of the lower rail 13 is M/2.

The tension member 23 is wound between the fixing members 22 of the two slide rail assemblies 1 through the front steering member 211 and the rear steering member 212 and forms a loop, that is, the tension member 23 passes through the front steering member 211 and the rear steering member 211 to form a loop. The direction of the member 212 is changed so as to connect the upper fixing member 221 and the lower fixing member 222 . In the present invention, forming a loop means: the two parts of the tension member 23 located at the front side and the rear side of the same fixing member 22 are tightly connected through the fixing member 22 without breakpoints; the tension member 23 is located at the same fixing member 22 The two parts of the front side and the rear side are fixed on the same slide rail, and there is no turning member 21 between the two fixed points. Certainly, in the specific implementation manner of the present invention, it is also possible not to form a loop according to specific circumstances.

In a specific example of the present invention, referring to FIG. 6, the fixing member 22 includes a first upper fixing member 221a and a first lower fixing member 222a arranged on the first slide rail assembly 1a, and a first lower fixing member 222a arranged on the second slide rail assembly 1b. The second upper fixing piece 221b on the top, the tensioning piece 23 is divided into three sections by three fixing pieces 22: the first front turning piece 211a and the first lower fixing piece 222a and the first upper fixing piece 221a are connected. The tensioning member passes through the first rear steering member 212a, the second rear steering member 212b and the second front steering member 211b in turn and connects the second tensioning member of the first upper fixing member 221a and the second upper fixing member 221b, sequentially The third tension member passes through the second rear steering member 212b and the first rear steering member 212a and connects the second upper fixing member 221b and the first lower fixing member 222a. The first tension member, the second tension member and the third tension member are connected to each other through the fixing member 22 to form a closed circuit.

When the drawer is drawn, when the first upper rail 11a is pulled outward by a distance a, the upper layer tension member 231 of the first slide rail assembly 1a goes down through the first front steering member 211a and the first rear steering member 212a The tension member 232 transmits the distance a, and the distance between the tension member 23 between the first front steering member 211a and the second rear steering member 212b is fixed, so the lower tension member 232 of the second slide rail assembly 1b Through the second front steering piece 211b, the second rear steering piece 212b and the first rear steering piece 212a, the distance a is transmitted to the upper tension member 231 of the first slide rail assembly 1a; and because the second front steering piece 211b and the second rear steering piece The distance between the turning members 212b is fixed, so the upper tension member 231 of the second slide rail assembly 1b transmits a distance a to the lower tension member 232, while the lower tension member 232 of the first slide rail assembly 1a passes through the first The front steering member 211a, the first rear steering member 212a and the second front steering member 211b, the second rear steering member 212b transmit a distance a to the upper tension member 231 of the second slide rail assembly 1b.

The upper tension member 231 of the first slide rail assembly 1a is respectively fixed on the first upper rail 11a and the first lower rail 13a through the first upper fixing member 221a and the first lower fixing member 222a; the upper layer of the second slide rail assembly 1b The tension member 231 is fixed on the second upper rail 11b through the second upper fixing member 221b. At the same time, the lengths of the first tension member, the second tension member and the third tension member are all fixed. When the drawer is drawn, when the upper rail 11 of the first slide rail assembly 1a is forced to pull out a distance a, the upper tension member 231 of the first slide rail assembly 1a transmits a distance a to the lower tension member 232. The lower tension member 232 of the second slide rail assembly 1b transmits a distance a to the upper tension member 231 of the first slide rail assembly 1a, and the upper tension member 231 of the second slide rail assembly 1b stretches to the lower layer of the second slide rail assembly 1b. The tightening member 232 transmits the distance a, so the second upper rail 11b is also pulled outward by the distance a. At the same time, the lower tension member 232 of the first slide rail assembly 1a transmits a distance a to the upper tension member 231 of the second slide rail assembly 1b. Since the length of the third tension member is fixed, the second rear steering member 212b Pull forward.

When the upper rail 11 of the second slide rail assembly 1b is pulled outward by a distance a, the length of the third tension member is fixed, and the third tension member connects with the first rear steering member 212b through the second rear steering member 212b. The steering member 212a is driven by a distance a to the upper rail 11 of the second slide rail assembly 1b, so the first rear steering member 212a of the first slide rail assembly 1a is pulled forward; and because the length of the first tensioning member is fixed Therefore, the upper rail 11 of the first slide rail assembly 1a is also pulled out by a distance a. In addition, since the upper rail 11 and the middle rail 12 are slidingly connected, and the middle rail 12 and the lower rail 13 are also slidingly connected, the movement of the upper rail 11 will drive the middle rail 12 to move together to increase the pull-out distance.

In another specific example of the present invention, referring to FIG. 7, the same components as in the previous specific example use the same reference numerals, and the fixing member 22 includes a first upper fixing member 221a and a first upper fixing member 221a disposed on the first slide rail assembly 1a. The lower fixing part 222a, the second upper fixing part 221b and the second lower fixing part 222b are arranged on the second slide rail assembly 1b.

The tension member 23 includes a first tension member that passes through the first front steering member 211a and connects the first lower fixing member 222a and the first upper fixing member 221a, passes through the first rear steering member 212a, and the second rear steering member in turn. 212b and connects the second tension member of the first upper fixing member 221a and the second lower fixing member 222b, passes through the second front turning member 212a and is connected to the second lower fixing member 222b and the third sheet of the second upper fixing member 221b The tension member passes through the second rear steering member 212b and the first rear steering member 212a in turn and connects the second upper fixing member 221b with the first lower fixing member 222a. The first tension member, the second tension member, the third tension member and the fourth tension member are connected to each other through the fixing member 22 to form a closed loop. For other descriptions of this example, reference may be made to the previous example, and details are not repeated here.

Next, several specific implementations of the auxiliary middle rail assembly 5 of the present invention are introduced, and the same structures use the same numbers.

As shown in Figures 1-7, in the first embodiment of the present invention, the slide rail mechanism 100 includes a synchronization mechanism 2 that keeps the first slide rail assembly 1a and the second slide rail assembly 1b moving synchronously, and the synchronization mechanism 2 includes The two sets of auxiliary middle rail assemblies 5a cooperating with the two sets of slide rail assemblies 1, the steering pieces 21 and the tensioning pieces 23 arranged on the auxiliary middle rail assemblies 5a, and the fixing pieces 22 arranged on the two sets of slide rail assemblies, each The auxiliary middle rail assembly 5a is located on the side of the corresponding slide rail assembly 1 close to the drawer accommodation space, and the tension member 23 is wound between the fixing members 22 of the two slide rail assemblies 1 through the steering member 21 , so that when the upper rail 11 or the middle rail 12 of the first slide rail assembly 1a moves, the tension member 23 drives the upper rail 11 or the middle rail 12 of the second slide rail assembly 1b to displace the same distance in the same direction through the fixing member 22 . That is to say, in this embodiment, the auxiliary middle rail assembly 5 a is located inside the slide rail assembly 1 .

Here, on the basis of the three-section slide rail in the prior art, the auxiliary middle rail assembly 5a is added, and the steering piece 21 of the synchronous mechanism 2 is arranged on the auxiliary middle rail assembly 5a. Contact, that is to say, at this time, the moving tracks of the steering member 21 and the tension member 23 do not overlap with the sliding tracks of the three-section slide rails, even if the gap between the upper rail 11 and the lower rail 13 is reduced due to wear, it does not overlap. It will affect the normal operation of the steering member 21 in the synchronous mechanism 2, and can effectively solve the problem of interference between the steering member 21 and the upper rail 11 and/or the lower rail 13 in the prior art. In addition, this embodiment can utilize the common three-section slide rail structure in the market, and only needs to cooperate with the low-cost auxiliary middle rail assembly, thereby not only simplifying the manufacturing difficulty, but also greatly reducing the production cost.

Each auxiliary middle rail assembly 5a includes a limiting seat 51a and a screw rod 52a, the screw rod 52a is movably arranged in the limiting seat 51a, the screw rod 52a is connected to the steering member 21, When the upper rail 11 or the middle rail 12 moves, the limiting seat 51a remains stationary, and the screw rod 52a and the steering member 21 move in the same direction relative to the limiting seat 51a. Here, the limit seat 51a is in a "concave" shape, and the bottom surface of the limit seat 51a is fixed to the support plate 55a by screws (not marked). The openings of the two insertion ends 512a, the first insertion end 511a and the second insertion end 512a extend horizontally, and the screw rod 52a is limited in the first insertion end 511a and the second insertion end 512a. The support plate 55a is a horizontal hard plate, and the support plate 55a and the angle iron 6 or the lower rail 11 can be described by screws. Of course, the support plate 55a can also be integrally formed with the angle iron 6 or the lower rail 11. In this embodiment, the moving direction of the screw rod 52a can be effectively controlled by setting the limit seat 51a, so that the moving direction of the screw rod 52a is consistent with the moving direction of the upper rail 11 and/or the middle rail 12, that is to say, the wire The central axis of the rod 52a is parallel to the tension member 23 and in the same vertical plane.

In this embodiment, a limiting groove 56a is formed on the upper surface of the support plate 55a, which is arranged corresponding to the threaded rod 52a, so as to enhance the control of the moving direction of the threaded rod 52a.

In this embodiment, the front steering member 211 is located at the front end of the screw rod 52a, and the rear steering member 212 is located at the rear end of the screw rod 52a. The first front steering member 211a and the second front steering member 211b of the assembly 1b, the rear steering member 212 includes the first rear steering member 212a and the second Rear steering member 212b. The fixing part 22 is located on the side of the slide rail assembly 1 close to the drawer accommodating space, that is, the fixing part 22 is located on the inside of the slide rail assembly 1, and the fixing part 22 includes a first upper part arranged on the first slide rail assembly 1a. The fixing part 221a, the first lower fixing part 222a, and the second upper fixing part 221b arranged on the second slide rail assembly 1b, the tensioning part 23 is divided into three sections by the three fixing parts 22: after the first front steering 211a and connects the first tension member of the first lower fixing member 222a and the first upper fixing member 221a, passes through the first rear steering member 212a, the second rear steering member 212b and the second front steering member 211b in turn and connects the first The second tensioning part of the upper fixing part 221a and the second upper fixing part 221b passes through the second rear steering part 212b and the first rear steering part 212a in turn and connects the second upper fixing part 221b and the first lower fixing part 222a. Three tensioning pieces. The first tension member, the second tension member and the third tension member are connected to each other through the fixing member 22 to form a closed circuit. Certainly, the fixing part 22 may also include a first upper fixing part 221a and a first lower fixing part 222a arranged on the first slide rail assembly 1a, and a second upper fixing part 221b arranged on the second slide rail assembly 1b. and the second lower fixing part 222b. At this time, the tensioning part 23 includes a first tensioning part, a second tensioning part, a third tensioning part and a fourth tensioning part. For other descriptions of this implementation manner, reference may be made to descriptions in other parts of this specification, and details are not repeated here.

As shown in FIGS. 8-12 , in the second embodiment of the present invention, the slide rail mechanism 100 further includes a synchronization mechanism 2 that keeps the first slide rail assembly 1 a and the second slide rail assembly 1 b moving synchronously. The synchronization mechanism 2 It includes two sets of auxiliary middle rail assemblies 5b matched with two sets of slide rail assemblies 1, a steering piece 21 provided on the auxiliary middle rail assemblies 5b, a tensioning piece 23 and a fixing piece 22 provided on the two sets of slide rail assemblies. A said auxiliary middle rail assembly 5b includes two auxiliary middle rails respectively located on the two sides of the corresponding slide rail assembly 1 close to and far away from the drawer accommodating space. Between the fixing parts 22 of the slide rail assembly 1, when the upper rail 11 or the middle rail 12 of the first slide rail assembly 1a moves, the tensioning part 23 drives the upper rail 11 of the second slide rail assembly 1b through the fixing part 22 Or middle rail 12 displaces the same distance in the same direction. That is to say, in this embodiment, each auxiliary middle rail assembly 5 b is located on the inside and outside of the corresponding slide rail assembly 1 .

Here, on the basis of the three-section slide rail in the prior art, the auxiliary middle rail assembly 5b is added, and the steering piece 21 of the synchronous mechanism 2 is arranged on the auxiliary middle rail assembly 5b, and the steering piece 21 and the three-section slide rail are not connected to each other. Contact, that is to say, at this time, the moving tracks of the steering member 21 and the tension member 23 do not overlap with the sliding tracks of the three-section slide rails, even if the gap between the upper rail 11 and the lower rail 13 is reduced due to wear, it does not overlap. It will affect the normal operation of the steering member 21 in the synchronous mechanism 2, and can effectively solve the problem of interference between the steering member 21 and the upper rail 11 and/or the lower rail 13 in the prior art. In addition, this embodiment can utilize the common three-section slide rail structure in the market, and only needs to cooperate with the low-cost auxiliary middle rail assembly, thereby not only simplifying the manufacturing difficulty, but also greatly reducing the production cost. It should be noted that, compared with the first embodiment, in this embodiment, each auxiliary middle rail assembly 5b is divided into two auxiliary middle rails located on the inside and outside of the corresponding slide rail assembly 1, and a part of the steering member 21 and The tension member 23 is transferred to the middle area of the slide rail assembly 1 and the inner liner of the box, which can effectively reduce the space occupied by the auxiliary middle rail assembly 5b on the side of the slide rail assembly 1 close to the drawer accommodation space, thereby increasing the space correspondingly. Large drawer volume.

Each auxiliary middle rail includes a limit seat 51b (51b') and a screw rod 52b (52b'), the screw rod 52b is movably arranged in the limit seat 51b, and the screw rod 52b is connected to The steering member 21, when the upper rail 11 or the middle rail 12 moves, the limit seat 51b remains stationary, and the screw rod 52b and the steering member 21 are in the same direction relative to the limit seat 51b. move. Here, the limit seat 51b is in a "concave" shape, and the bottom surfaces of the two limit seats 51b, 51b' are respectively abutted against the two side surfaces of the corresponding lower rail 11 that are close to and far from the drawer accommodating space. The limiting seat 51b also includes a first insertion end 511b and a second insertion end 512b protruding from the bottom surface. The insertion end 511b and the second insertion end 512b. In this embodiment, the moving direction of the screw rod 52b can be effectively controlled by setting the limit seat 51b, so that the moving direction of the screw rod 52b is consistent with the moving direction of the upper rail 11 and/or the middle rail 12, that is to say, the screw rod 52b The central axis of the rod 52b is parallel to the tension member 23 and in the same vertical plane.

In this embodiment, the front steering member 211 is located at the front end of the screw rod 52b′, and the rear steering member 212 is located at the rear end of the screw rod 52b. That is to say, each auxiliary middle rail assembly 5b has two screw rods (inner screw rod 52b and outer screw rod 52b'), the front steering member 211 is located at the front end of the outer screw rod 52b', and the rear steering member 212 is located at the rear end of the inner screw rod 52b. The front steering member 211 includes a first front steering member 211a and a second front steering member 211b respectively arranged on the first slide rail assembly 1a and the second slide rail assembly 1b, and the rear steering member 212 includes a first front steering member 211b respectively arranged on the first slide rail assembly 1a and the second slide rail assembly 1b. The first rear turning member 212a and the second rear turning member 212b of the slide rail assembly 1a and the second slide rail assembly 1b. The fixing member includes an inner fixing member 22 and an outer fixing member 22 ′ located on both sides of the corresponding slide rail assembly 1 close to and away from the drawer accommodating space, and the inner fixing member 22 includes a The inner first upper fixing part 221a and the inner first lower fixing part 222a on 1a, the inner second upper fixing part 221b and the inner second lower fixing part 222b arranged on the second slide rail assembly 1b; the outer fixing part 22' includes the outer first upper fixing part 221a' and the outer first lower fixing part 222a' arranged on the first slide rail assembly 1a, the outer second upper fixing part 221b' and the outer second upper fixing part 221b' arranged on the second slide rail assembly 1b The outer second lower fixing part 222b'; the tensioning part 23 includes a first tensioning part passing through the first front steering part 211a and connecting the outer first lower fixing part 222a' and the outer first upper fixing part 221a', sequentially Pass through the first rear steering member 212a, the second rear steering member 212b and connect the second tension member of the inner first lower fixing member 222a and the inner second upper fixing member 221b, and pass through the first rear steering member 212a and the second rear steering member in turn. The steering part 212b is connected to the third tension member of the inner first upper fixing part 221a and the inner second lower fixing part 222b, passes through the second front turning part 211b and connects the outer second lower fixing part 222b' and the outer second upper fixing part The fourth tension member of member 221b'. At this time, the second tension member and the third tension member are located inside the first slide rail assembly 1a and the second slide rail assembly 1b, and the first tension member and the fourth tension member are located inside the first slide rail assembly 1a and the second slide rail assembly 1b. The outside of the second rail assembly 1b. For other descriptions of this implementation manner, reference may be made to descriptions in other parts of this specification, and details are not repeated here.

As shown in FIGS. 13-17 , in the third embodiment of the present invention, the slide rail mechanism 100 further includes a synchronization mechanism 2 that keeps the first slide rail assembly 1 a and the second slide rail assembly 1 b moving synchronously. 2 Including two sets of auxiliary middle rail assemblies 5c matched with two sets of slide rail assemblies 1, steering pieces 21 provided on the auxiliary middle rail assemblies 5c, tensioning pieces 23 and fixing pieces 22 provided on two sets of slide rail assemblies 1 Each of the auxiliary middle rail assemblies 5c is located on the side of the corresponding slide rail assembly 1 away from the upper rail 11, and the tension member 23 is placed around the fixing member 22 of the two slide rail assemblies 1 through the steering member 21 between, so that when the upper rail 11 or the middle rail 12 of the first slide rail assembly 1a moves, the tension member 23 drives the upper rail 11 or the middle rail 12 of the second slide rail assembly 1b to displace in the same direction through the fixing member 22 distance. That is to say, in this embodiment, the auxiliary middle rail assembly 5 c is located on the lower side of the slide rail assembly 1 . It should be noted that the slide rail mechanism 100 of this embodiment is suitable for the situation where the slide rail mechanism is located on the side of the drawer. At this time, there is a remaining space on the lower side of the slide rail assembly 1 to accommodate the auxiliary middle rail assembly 5c, while the first embodiment And the slide rail mechanism of the second embodiment is suitable for the case where the slide rail mechanism 100 is located at the bottom of the drawer, but not limited thereto.

Here, on the basis of the three-section slide rail in the prior art, the auxiliary middle rail assembly 5c is added, and the steering piece 21 of the synchronous mechanism 2 is arranged on the auxiliary middle rail assembly 5c. Contact, that is to say, at this time, the moving tracks of the steering member 21 and the tension member 23 do not overlap with the sliding tracks of the three-section slide rails, even if the gap between the upper rail 11 and the lower rail 13 is reduced due to wear, it does not overlap. It will affect the normal operation of the steering member 21 in the synchronous mechanism 2, and can effectively solve the problem of interference between the steering member 21 and the upper rail 11 and/or the lower rail 13 in the prior art. In addition, this embodiment can utilize the common three-section slide rail structure in the market, and only needs to cooperate with the low-cost auxiliary middle rail assembly, thereby not only simplifying the manufacturing difficulty, but also greatly reducing the production cost. It should be noted that in this embodiment, the auxiliary middle rail assembly 5c is disposed under the slide rail assembly 1 , and the arrangement of the auxiliary middle rail assembly 5c will not affect the volume of the drawer.

Each auxiliary middle rail assembly 5c includes a limiting seat 51c and a screw rod 52c, the screw rod 52c is movably arranged in the limiting seat 51c, the screw rod 52c is connected to the steering member 21, When the upper rail 11 or the middle rail 12 moves, the limit seat 51c remains stationary, and the screw rod 52c and the steering member 21 move in the same direction relative to the limit seat 51c. Here, the support plate 55c is integrally formed with the angle iron 6, the upper surface of the support plate 55c is in contact with the lower surface of the lower rail 13, the limit seat 51c is in a "concave" shape, and the bottom surface of the limit seat 51c abuts against the bottom surface of the support plate 55c. bottom. The limiting seat 51c also includes a first insertion end 511c and a second insertion end 512c protruding from the bottom surface. The openings of the first insertion end 511c and the second insertion end 512c extend horizontally, and the screw rod 52c is limited at the first insertion end 511c. The insertion end 511c and the second insertion end 512c. In this embodiment, the moving direction of the screw rod 52c can be effectively controlled by setting the limit seat 51c, so that the moving direction of the screw rod 52c is consistent with the moving direction of the upper rail 11 and/or the middle rail 12, that is to say, the screw rod 52c The central axis of the rod 52c is parallel to the tension member 23 and in the same vertical plane.

In this embodiment, the front steering member 211 is located at the front end of the screw rod 52c, and the rear steering member 212 is located at the rear end of the screw rod 52c. The first front steering member 211a and the second front steering member 211b of the assembly 1b, the rear steering member 212 includes the first rear steering member 212a and the second Rear steering member 212b. The fixing member 22 extends from the upper rail 11 and the lower rail 13 (or the supporting plate 55c) to the lower side of the supporting plate 55c. The fixing member 22 includes a first upper fixing member 221a and a first The lower fixing part 222a, the second upper fixing part 221b arranged on the second slide rail assembly 1b, the tensioning part 23 is divided into three sections by the three fixing parts 22: passing through the first front steering part 211a and connecting the first The lower fixing member 222a and the first tensioning member of the first upper fixing member 221a pass through the first rear steering member 212a, the second rear steering member 212b and the second front steering member 211b in turn and connect the first upper fixing member 221a and the first upper fixing member 221a. The second tensioning part of the second upper fixing part 221b passes through the second rear turning part 212b and the first rear turning part 212a in sequence and connects the second upper fixing part 221b with the third tensioning part of the first lower fixing part 222a. The first tension member, the second tension member and the third tension member are connected to each other through the fixing member 22 to form a closed circuit. Certainly, the fixing part 22 may also include a first upper fixing part 221a and a first lower fixing part 222a arranged on the first slide rail assembly 1a, and a second upper fixing part 221b arranged on the second slide rail assembly 1b. and the second lower fixing part 222b. At this time, the tensioning part 23 includes a first tensioning part, a second tensioning part, a third tensioning part and a fourth tensioning part. For other descriptions of this implementation manner, reference may be made to descriptions in other parts of this specification, and details are not repeated here.

In one embodiment of the present invention, the tension member 23 includes a first tension member, a second tension member, and a third tension member as an example, and the slide rail mechanism 100 in the first embodiment is taken as an example, other The slide rail mechanism 100 of the embodiment is also applicable, and will not be described in detail here. As shown in FIG. 18 and FIG. 19 , the slide rail mechanism 100 also includes a motor assembly 3 , and the motor assembly 3 has a first connection end 31 and a second connection end 32 for winding or releasing the tension member 23 , the two parts of the tensioning member 23 located on the front and rear sides of the same fixing member 22 are respectively wound and connected to the first connection end 31 and the second connection end 32, and the motor assembly 3 is connected through the first connection during operation. One of the end 31 and the second connecting end 32 shrinks the tension member 23, and the other releases the tension member 23 so that the tension member 23 moves, and then drives the middle rail 12 through the fixing member 22 Moving with the upper rail 11, the drawer can be automatically drawn and pulled under the drive of the motor, which is convenient to use.

In this embodiment, the upper fixing member 221 includes an upper clamping member 2211 fastened on the upper rail 11 and a nut with a hole 2212 matched with the upper clamping member, and the upper layer tensioning member 231 passes through the It is fixed in the hole of the eyelet nut 2212. The lower fixing member 222 includes a lower clamping member 2221 fixed on the lower rail 13 and a first guide 2222 and a second guide 2223 arranged on the lower clamp 2221. The lower tension member 232 The motor assembly 3 is guided by the first guide member 2222 and the second guide member 2223 to fix the lower tension member 232 . In order to facilitate understanding of the structure of the lower fixing member 222 , the first guiding member 2222 and the second guiding member 2223 of the lower fixing member 222 do not move with the lower fixing member 2221 , but are still fixed with the tensioning member 23 . The hole of the nut with holes 2212 and the upper steering member 2121 are located on the same straight line parallel to the screw mandrel 52, and the first guide member 2222, the second guide member 2223, the lower clamping member 2221 and the lower steering member 2122 cooperate with each other. Located on the same straight line parallel to the screw rod 52 , so the tension member 23 remains on the same straight line parallel to the screw rod 52 before and after the upper fixing member 221 and the lower fixing member 222 are fixed.

The slide rail mechanism 100 also includes a controller for controlling the operation of the motor assembly 3, and controls the operation of the motor assembly 3 when the controller receives a signal to pull out or push in the drawer. The motor assembly 3 includes a motor capable of forward and reverse rotation, a transmission gear driven by the motor and whose rotational speed can be adjusted, and a winding drum driven to rotate by the transmission gear. The first connecting end 31 and the second connecting end 31 are both arranged on the winding drum, and the two parts of the tensioning member 23 located on the front and rear sides of the same fixing member 22 are respectively wound on the said tensioning member 23 in opposite directions. On the first connection end 31 and the second connection end 32 . Therefore, when the reel rotates in one direction, one of the first connection end 31 and the second connection end 32 contracts the tension member 23 and the other releases the tension member 23 so that the The tension member 23 moves.

The first connecting end 31 and the second connecting end 32 are respectively wound and connected to the first tensioning element and the third tensioning element on the front and rear sides of the first lower fixing element 222a. The first lower fixing part 222a has a first guide part 2222 and a second guide part 2223 respectively guiding the first tension part and the third tension part to the first connection end 31 and the second connection end 32 . The slide rail mechanism 100 also includes a first bushing (not shown) disposed between the first guide piece 2222 and the first connection end 31 , and the tension member 23 is between the first guide piece 2222 and the motor assembly 3 . The part between is passed through the first bushing, and the length of the tension member 23 between the first guide member 2222 and the motor assembly 3 is greater than the distance between the first guide member 2222 and the motor assembly 3; The slide rail mechanism 100 also includes a second bushing (not marked) disposed between the second guide 2223 and the second connecting end 32, and the tension member is between the second guide 2223 and the motor assembly 3. Part of it passes through the second bushing, and the length of the tension member 23 between the second guide member 2223 and the motor assembly 3 is greater than the distance between the second guide member 2223 and the motor assembly 3 . Therefore, it is convenient to install the synchronous mechanism 2 and the motor assembly 3 in cooperation.

Certainly, the first tension member, the second tension member and the third tension member may be composed of one tension member 23 , two tension members 23 or three tension members 23 . In order to simplify the assembly process and reduce costs, a tension member 23 is used in this embodiment. The initial end of the tension member 23 is wound and connected to the first connection end 31, and the end of the tension member 23 passes through the first guide member 2222, the first front Turning piece 211a, first upper fixing piece 221a, first rear turning piece 212a, second rear turning piece 212b, second front turning piece 211b, second upper fixing piece 221b, second rear turning piece 212b, first rear turning piece The piece 212a and the second guide piece 2223 are connected to the second connecting end 32 afterward.

When the motor rotates in the forward direction, the first tension member is wound on the winding drum, and the length of the winding is a, then the upper tension member 231 located in the first slide rail assembly 1a is driven forward by a distance a, due to the first The distance between a front steering member 211a and the first rear steering member 212a is fixed, and the distance between the tension member 23 between the first front steering member 211a and the second rear steering member 212b is fixed, so the The lower tension member 232 of the second slide rail assembly 1b transmits a distance a to the upper tension member 231 of the first slide rail assembly 1a through the second front steering member 211b, the second rear steering member 212b and the first rear steering member 212a; And because the distance between the second front steering member 211b and the second rear steering member 212b is fixed, the upper tension member 231 of the second slide rail assembly 1b transmits the distance a to the lower tension member 232, while the first slide The lower tension member 232 of the rail assembly 1a passes through the first front steering member 211a, the first rear steering member 212a and the second front steering member 211b, the second rear steering member 212b to the upper tension member 231 of the second slide rail assembly 1b. The transmission distance is a, and the release length of the third tension member from the winding drum is a.

The upper tension member 231 of the first slide rail assembly 1a is respectively fixed on the first upper rail 11a and the first lower rail 13a through the first upper fixing member 221a and the first lower fixing member 222a; the upper layer of the second slide rail assembly 1b The tension member 231 is fixed on the second upper rail 11b through the second upper fixing member 221b. At the same time, the lengths of the first tension member, the second tension member and the third tension member are all fixed. When the first tension member is wound to the winding drum for a length a, the upper layer tension member 231 of the first slide rail assembly 1a transmits a distance a to the lower floor tension member 232, and the upper rail 11 of the first slide rail assembly 1a is stressed toward Pull out the distance a; the lower tension member 232 of the second slide rail assembly 1b transmits the distance a to the upper tension member 231 of the first slide rail assembly 1a, and the upper tension member 231 of the second slide rail assembly 1b moves to the second The lower tension member 232 of the slide rail assembly 1b travels a distance a, so the second upper rail 11b is also pulled outward by a distance a. Simultaneously, the third tension member releases the distance a from the winding drum, and the refrigerator transmits the distance a to the upper tension member 231 of the second slide rail assembly 1b. Since the length of the third tension member is fixed, the second slide The second rear diverter 212b of the rail assembly 1b is pulled forward.

Certainly, when the fixing member 22 further includes the second lower fixing member 222b disposed on the lower rail 13 of the second slide rail assembly 1b, the above-mentioned motor assembly 3 can also be matched. It should be noted that the drawer in this embodiment can also be opened manually, and the synchronous in and out of the drawer can also be realized through the operation of the synchronous mechanism 2. The motor assembly 3 only provides an active force for automatic opening and closing. Therefore, the motor assembly is omitted. Drawers can still be moved in and out manually.

In another embodiment of the present invention, taking the tension member 23 as an example including a first tension member, a second tension member, a third tension member and a fourth tension member, as shown in FIG. 20 and FIG. 21 , The motor assembly 3 includes a first motor assembly 33 that is wound and connected to the first tension member and the fourth tension member, and a second motor assembly 34 that is wound and connected to the third tension member and the second tension member. The first motor assembly 33 contracts or releases the first tension member and the fourth tension member respectively, and the second motor assembly 34 contracts or releases the third tension member and the second tension member respectively, so that the tension member 23 moves, and then drives the middle rail 12 and the upper rail 11 to move through the fixing member 22.

For the cooperation between the motor assembly 3 and the tension member 23 in this embodiment, reference may be made to the previous embodiment, and details will not be repeated here.

Further, in this embodiment, the synchronization mechanism 2 described in FIG. 22 and FIG. 23 also includes a tension sleeve 24 arranged between the two rear steering members 212, and at least one of the two rear steering members 212 An adjustment assembly 4 is provided, and the adjustment assembly 4 is movably connected with the tension sleeve 24. When the adjustment assembly 4 is in a tightened state, the tension sleeve 24 drives the tension member 23 away from the adjustment The assembly 4 moves until the length of the tension member 23 between the two rear steering members 212 is greater than the distance between the two rear steering members 212, and the tension member 23 is outside the tension sleeve 24 Part is always in a tensioned state, so that when the upper rail 11 or the middle rail 12 of the first slide rail assembly 1a moves, the tension member 23 drives the upper rail 11 or the middle rail 12 of the second slide rail assembly 1b through the fixing member 22 Displaced by the same distance in the same direction.

Here, compared with the embodiment without tension sleeve 24, the length of the tension member 23 between the two rear steering members 212 is greater than the distance between the two rear steering members 212; The other parts of the tension member 23 outside the tension sleeve 24 will loosen. In addition, in order to facilitate the installation of the tension member 23, a longer tension member 23 is generally provided. After the tension member 23 is assembled on the fixing member 22 and the steering member 21, the tension member 23 is easily in a relaxed state. The adjustment assembly 4 can be used to effectively adjust the tightness of other tension members 23 outside the tension sleeve 24, so that the other tension members 23 outside the tension sleeve 24 are always kept in a tight state, thereby improving synchronization and stability.

In a specific example of the present invention, the adjustment assembly 4 is installed in the rear steering member 212 of the second slide rail assembly 1b, and there is no adjustment assembly in the rear steering member of the first slide rail assembly 1a, of course, in other examples , in order to improve the adjustment range and adjustment convenience, the adjustment assembly 4 can also be provided in the two rear steering members 212 .

The rear steering member 212 is fixed to the rear end of the screw rod 52 through the base 213, and on the side of the first slide rail assembly 1a, a fixed collar 25 is arranged between the tension sleeve 24 and the base 213 of the tension member 23 , the fixed collar 25 is perpendicular to the screw rod 52, and the part of the tension member 23 inside the fixed collar 25 is connected to another part extending from the part behind the rear steering member 212 and close to the rear steering member 212. A part is vertical and located on the same plane, so that the tension member 23 can run smoothly during the opening or closing of the slide rail, saving effort; at the same time, it can reduce the movement of the tension member 23 around the rear steering member 212 Time wear and prolong life.

On the side of the second slide rail assembly 1b, as shown in FIG. The steering member 2121 is used to adjust the length of the tension member 23 passing through the upper steering member 2121, and the lower adjustment assembly 4b cooperates with the lower steering member 2122 to adjust the length of the tension member 23 passing through the lower steering member 2121. length. under. The structure of the adjustment assembly will be described in detail below with the adjustment assembly 4b as an example.

As shown in FIG. 13 , the base 213 has a first opening 2131 and a second opening 2132 that are perpendicular to each other and are connected. The end of the tensioning sleeve 24 is located at the second opening 2132 and passes through The tension member 23 in the tension sleeve 24 passes through the lower turning member 2122 from the second opening 2132 and extends to the first opening 2131 , and protrudes from the first opening 2131 to be fixed to the fixing member 22 . It should be noted that the first opening 2131 and the second opening 2132 of the upper adjusting component 4 a and the lower adjusting component 4 b can be mutually isolated openings to avoid cross-wiring.

Specifically, the adjustment assembly 4 includes a bolt 41 and a synchronous top spring 42 that drives the movement of the bolt 41, a first protrusion 2133 is formed on the base 213, the bolt 41 is a hollow structure, and A second convex portion 411 is formed on the inner wall of the latch member 41, and the first convex portion 2133 and the second convex portion 411 are surrounded to form an accommodation cavity (not marked), and the synchronous top spring 42 is just accommodated placed in the chamber. Here, the first convex portion 2133 and the second convex portion 411 are incompletely closed structures, and the tension member 23 can pass through the second convex portion 411, the first convex portion 2133, the lower turning member 2122 and extend to the first opening 2131 in sequence. place.

The synchronous top spring 42 has a first end 421 and a second end 422 oppositely disposed, the tension sleeve 24 has a first end 241 close to the synchronous top spring, and the first end 421 abuts against the The first protrusion 2133 , the second end 422 and the first end 241 abut against two sides of the second protrusion 411 respectively. Here, since the diameter of the tensioning sleeve 24 is greater than the diameter of the tensioning member 23, the diameter difference can be used to hold the tensioning sleeve 24 against the second protrusion 411, and the tensioning member 23 can just pass through the second protrusion 411 .

When the adjustment assembly 4 is in the initial state, the tension sleeve 24 is against the second protrusion 411 , so that the synchronous top spring 42 is limited in the accommodation cavity surrounded by the first protrusion 2133 and the second protrusion 411 Inside, the latch member 41 does not move.

When the adjusting assembly 4 is in the tightening state, the tensioning sleeve 24 drives the tensioning member 23 to move toward the direction A, and the tensioning sleeve 24 breaks away from the second convex portion 411. At the same time, the second convex portion 411 synchronizes with the top spring The active force of 42 also disappears. At this time, the synchronous top spring 42 can push the second convex part 411 to move toward the direction A, that is to say, at this time, the synchronous top spring 42 drives the latch 41 to move toward the direction A until the second convex part 411 moves again. Hold against tension sleeve 24 . Through the above adjustment process, the tension member 23 on the left side of the tension sleeve 24 is pulled a certain distance in the direction A, and the length of the tension member 23 between the two rear steering members 212 is greater than that between the two rear steering members 212 That is to say, at this time, the excess length of the tensioning member 23 has been consumed, and the other parts of the tensioning member 23 outside the tensioning sleeve 24 are in a taut state.

In this embodiment, the synchronization mechanism 2 further includes an insertion piece 26, a plurality of slots 412 are formed on the outer wall of the latch 41, and at least one socket 2134 is formed on the base 213 corresponding to the slots 412, so The insertion piece 26 passes through the socket 2134 and is inserted into the slot 412 so that the latch 41 is relatively fixed to the base 213 . Here, when the length of the tension member 23 needs to be adjusted, the insertion piece 26 is pulled out, so that the latch member 41 can move relative to the base 213 , and when the adjustment is completed, the insertion piece 26 is inserted to fix the position of the latch member 41 .

In this embodiment, one end of the latch 41 also forms a limiting end 413, and a limiting surface 2135 that cooperates with the limiting end 413 is formed on the base 213. When the latch 41 moves to In the extreme position, the limiting end 413 moves toward the limiting surface 2135 until the limiting end 413 and the limiting surface 2135 interfere with each other. Here, the setting of the limiting surface 2135 and the limiting end 413 can, on the one hand, prevent the latch 41 from detaching from the base 213 during movement, and on the other hand, limit the movable range of the latch 41 .

The present invention also provides a refrigerator, including the above-mentioned slide rail mechanism 100 .

To sum up, in the slide rail mechanism 100 of the present invention, the tension member 23 is placed between the fixing members 22 of the two slide rail assemblies 1 through the steering member 21, and the tension member 23 cross-connects one of the slide rails The upper rail 11 and the lower rail 13 of another slide rail assembly 1, so that when the upper rail 11 or the middle rail 12 of the first slide rail assembly 1a moves, the tension member 23 drives the second slide rail assembly through the fixing member 22 The upper rail 11 or middle rail 12 of 1b is displaced by the same distance in the same direction, realizing the synchronous movement of the two sets of slide rail assemblies 1, avoiding deflection or swinging caused by uneven force during the drawing process, and can be used during the drawing process. Lock the drawer at any position during the process, and the mute effect is good throughout the process; by adding the auxiliary middle rail assembly 5 and setting the steering piece 21 on the auxiliary middle rail assembly 5, the change in the gap between the upper rail 11 and the lower rail 13 It will not affect the normal operation of the steering member 21, thereby ensuring the stability of the synchronous mechanism 2; through the mutual cooperation between the motor assembly 3 and the synchronous mechanism 2, when the motor assembly 3 works, all the components connected to the motor assembly 3 The tension member 23 moves, and then drives the middle rail 12 and the upper rail 11 to move through the fixing member 22, so as to realize automatic drawing and pulling of the drawer, which is convenient to use; by setting the adjustment component 4, the tightness of the tension member 23 can be effectively adjusted, Improve user experience.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for feasible implementations of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or implementation that does not depart from the technical spirit of the present invention All changes should be included within the protection scope of the present invention.

Claims (9)

1. a kind of sliding track mechanism, pulls out or promotes 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 slide Mechanism further includes so that the first slide track component and the second slide track component keep synchronization-moving lazy-tongs, lazy-tongs include with Rail assembly in two groups of auxiliary that two groups of slide track components coordinate, the tumbler of rail assembly, tensioner and set in the auxiliary Rail assembly includes close positioned at the corresponding slide track component respectively in the fixing piece of two groups of slide track components, each auxiliary And away from rail in two of drawer accommodating space both sides auxiliary, the tensioner is wound on two slide track components by tumbler Between fixing piece so that when the upper rail of the first slide track component or middle rail move, the tensioner drives second to slide by fixing piece The upper rail of rail assembly or middle rail displacement same distance in the same direction；Rail includes limit base and screw, the screw in each auxiliary It is movably disposed in the limit base, the screw connects the tumbler, described when the upper rail or the movement of middle rail Limit base remains stationary as, and the screw and the tumbler move in the same direction relative to the limit base jointly.

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

3. sliding track mechanism according to claim 2, it is characterised in that：Two limit bases difference of rail assembly in each auxiliary Both side surface positioned at corresponding lower rail close and far from drawer accommodating space.

4. sliding track mechanism according to claim 1, it is characterised in that：The limit base includes mutually separating first set Insertion end and the second insertion end, the screw are limited in first insertion end and second insertion end.

5. sliding track mechanism according to claim 1, it is characterised in that：Put down with the tensioner central axes of the screw OK.

6. sliding track mechanism according to claim 1, it is characterised in that：The tumbler includes pedestal and is arranged in pedestal Wheel disc, the tensioner is set around at the wheel disc, and the screw interfixes with the pedestal.

7. sliding track mechanism according to claim 1, it is characterised in that：The tumbler includes front steering part and rear steering Part, the screw include the inner side screw positioned at the corresponding slide track component close and far from drawer accommodating space both sides respectively And outside screw, the rear steering part are located at the rear end of the inner side screw, the front steering part is located at the outside screw Front end.

8. sliding track mechanism according to claim 7, it is characterised in that：The fixing piece is included respectively positioned at corresponding described Close and far from the inner side fixing piece and outside fixing piece of drawer accommodating space both sides, the inner side fixing piece includes slide track component The first upper fixing element of inner side and the fixing piece of inner side first time on the first slide track component, on the second slide track component in The second upper fixing element of side and the fixing piece of inner side second time；The outside fixing piece includes the outside the being arranged on the first slide track component Under one upper fixing element and the fixing piece of outside first time, the second upper fixing element of outside on the second slide track component and outside second Fixing piece；The tumbler is included after being arranged on the first front steering part and first of rail assembly in the auxiliary for coordinating the first slide track component Tumbler, arranged on coordinate the second slide track component auxiliary in rail assembly the second front steering part and the second rear steering part；Described Tight part includes by the first front steering part and connects the first tensioner of the fixing piece of outside first time and the first upper fixing element of outside, By the first rear steering part, the second rear steering part and connect the of the first time fixing piece in inner side and the second upper fixing element of inner side successively Two tensioners, by the first rear steering part and the second rear steering part and connect under inner side the first upper fixing element and inner side second successively 3rd tensioner of fixing piece, by the second front steering part and connects the fixing piece of outside second time and the second upper fixing element of outside 4th tensioner.

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