Transmission mechanism and storage device

Abstract

The application discloses a transmission mechanism and a storage device. The transmission mechanism comprises a support, a first sliding rail assembly which is slidingly supported on the support and is extended and retracted along a first extension direction relative to the support, a second sliding rail assembly which is slidingly supported on the first sliding rail assembly and is capable of moving synchronously with the first sliding rail assembly along the first extension direction and is extended and retracted along a second extension direction relative to the first sliding rail assembly, and a transmission belt assembly which is used for associating the support, the first sliding rail assembly and the second sliding rail assembly to drive the first sliding rail assembly and the second sliding rail assembly to perform the extension and retraction actions under the driving of the same driving source. When the transmission belt assembly moves along the first movement direction, the first sliding rail assembly performs the extension action prior to the second sliding rail assembly. When the transmission belt assembly moves along the second movement direction, the second sliding rail assembly performs the retraction action prior to the first sliding rail assembly. The transmission mechanism has the advantages of simple structure, small size, low cost and simple control logic.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transmission structure, and particularly relates to a transmission mechanism and a storage equipment. BACKGROUND

[0002] In a refrigerator, a cabinet or other storage equipment, there is usually a storage layer such as a storage drawer. The storage drawer located at a low or high position needs to be pulled out by bending over or climbing high to realize the taking and placing of articles. When the articles in the storage drawer are heavy or the user is physically disabled, it is very difficult to take and place the articles in the storage drawer, and it consumes a lot of physical strength. SUMMARY

[0003] The application provides a transmission mechanism and a storage equipment to solve the technical problem that it is difficult to take and place articles in the storage drawer at a high or low position.

[0004] To solve the above technical problem, one technical scheme of the application is as follows: a transmission mechanism, comprising: a support; a first slide rail assembly slidingly supported on the support and capable of extending and retracting along a first extension direction relative to the support; a second slide rail assembly slidingly supported on the first slide rail assembly, capable of synchronously moving along the first extension direction with the first slide rail assembly, and capable of extending and retracting along a second extension direction relative to the first slide rail assembly, the first extension direction and the second extension direction being arranged to intersect each other; a transmission belt assembly for associating the support, the first slide rail assembly and the second slide rail assembly to drive the first slide rail assembly and the second slide rail assembly to perform the extension and retraction actions under the driving of the same driving source; wherein, when the transmission belt assembly moves along a first movement direction, the first slide rail assembly performs the extension action prior to the second slide rail assembly, and when the transmission belt assembly moves along a second movement direction opposite to the first movement direction, the second slide rail assembly performs the retraction action prior to the first slide rail assembly.

[0005] According to an embodiment of the application, the second slide rail assembly is provided with a restoring force tending to make the second slide rail assembly retract, and the restoring force is greater than the sliding resistance of the first slide rail assembly.

[0006] According to an embodiment of the application, the second slide rail assembly is hung with a to-be-transmitted article, and the component of the gravity of the to-be-transmitted article along the second extension direction forms the restoring force.

[0007] According to an embodiment of the application, the transmission mechanism comprises an elastic member arranged on the second slide rail assembly, and the elastic member provides the restoring force when the second slide rail assembly is in the extended state.

[0008] According to an embodiment of the present application, the transmission mechanism comprises a limiting member for limiting the maximum extension and minimum retraction of the primary slide rail assembly, and the limiting member provides a limiting resistance greater than the restoring force when the primary slide rail assembly is at the maximum extension and minimum retraction.

[0009] According to an embodiment of the present application, the transmission belt assembly comprises at least one idler pulley, at least one primary movable pulley, and a transmission belt, wherein the idler pulley is rotatably supported on the support, the primary movable pulley is rotatably supported on the primary slide rail assembly, the transmission belt is wound around the idler pulley and the primary movable pulley, and is fixed relative to the secondary slide rail assembly, and the transmission belt moves along the first movement direction and the second movement direction under the drive of the drive source, thereby driving the primary slide rail assembly and the secondary slide rail assembly to perform the extension and retraction actions.

[0010] According to an embodiment of the present application, the idler pulley comprises at least a first idler pulley and a second idler pulley arranged along the first extension / retraction direction, the first idler pulley and the second idler pulley cooperate to enable the transmission belt to extend along the first extension / retraction direction, and the primary movable pulley comprises at least a first primary movable pulley, a second primary movable pulley, a third primary movable pulley, and a fourth primary movable pulley, wherein the first primary movable pulley cooperates with the first idler pulley to enable the transmission belt to extend along the first extension / retraction direction, thereby driving the primary slide rail assembly to extend and retract, the second primary movable pulley cooperates with the first primary movable pulley, the third primary movable pulley cooperates with the second idler pulley to enable the transmission belt to extend along the second extension / retraction direction from the first extension / retraction direction, and the fourth primary movable pulley cooperates with the second primary movable pulley and the third primary movable pulley to enable the transmission belt to extend along the second extension / retraction direction, thereby driving the secondary slide rail assembly to extend and retract.

[0011] According to an embodiment of the present application, the primary slide rail assembly comprises at least two primary slide rails arranged side by side, the second primary movable pulley, the third primary movable pulley, and the fourth primary movable pulley are rotatably supported on the last primary slide rail among the at least two primary slide rails, the number of the first primary movable pulleys is plural, and each of the first primary movable pulleys is arranged on the at least two primary slide rails, so that the transmission belt between the second primary movable pulley and the first idler pulley reciprocally extends along the first extension / retraction direction, thereby driving the at least two primary slide rails to extend and retract along the first extension / retraction direction in a cascading manner.

[0012] According to an embodiment of the present application, the secondary slide rail assembly comprises at least two secondary slide rails arranged side by side, the transmission belt is fixed with the last secondary slide rail of the at least two secondary slide rails, the transmission belt assembly comprises at least two secondary movable pulleys and is respectively rotatably supported on the rest of the secondary slide rails, and the transmission belt is further wound around the secondary movable pulleys, so that the transmission belt between the third primary movable pulley and the fourth primary movable pulley reciprocally extends along the second telescopic direction, thereby driving the at least two secondary slide rails to extend and retract along the second telescopic direction in a cascading manner.

[0013] To solve the above technical problems, another technical solution adopted by the present application is: a storage device comprising a storage assembly and the transmission mechanism described above, wherein the storage assembly is arranged on the secondary slide rail assembly of the transmission mechanism.

[0014] The present application has the following beneficial effects: by mounting the to-be-transmitted objects on the secondary slide rail assembly, the to-be-transmitted objects can be automatically extended in the first telescopic direction and then extended in the second telescopic direction, and the to-be-transmitted objects can be automatically retracted in the second telescopic direction and then retracted in the first telescopic direction, which facilitates the user to take and place objects and saves the user's physical energy. The transmission mechanism has simple structure, small size, low cost and simple control logic. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings, wherein:

[0016] Figure 1 is a whole structure schematic view of an embodiment of the transmission mechanism of the present application, which is used to show that the primary slide rail assembly and the secondary slide rail assembly are both in the minimum extension state;

[0017] Figure 2 is a whole structure schematic view of an embodiment of the transmission mechanism of the present application, which is used to show that the primary slide rail assembly is in the maximum extension state and the secondary slide rail assembly is in the minimum extension state;

[0018] Figure 3 is a whole structure schematic view of an embodiment of the transmission mechanism of the present application, which is used to show that the primary slide rail assembly is in the maximum extension state and the secondary slide rail assembly is in the maximum extension state;

[0019] Figure 4 is a whole structure schematic view of another embodiment of the transmission mechanism of the present application, which is used to show that the primary slide rail assembly comprises one primary slide rail and the secondary slide rail assembly comprises a plurality of secondary slide rails;

[0020] Figure 5 is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of the present application, used to show that the last-stage secondary slide rail is provided with a secondary movable pulley;

[0021] Figure 6 is a schematic diagram of the partial structure of an embodiment of the transmission mechanism of the present application, used to show a driving source;

[0022] Figure 7 is a schematic diagram of the partial structure of another embodiment of the transmission mechanism of the present application, used to show another driving source;

[0023] Figure 8 is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of the present application, used to show various arrangements of the primary slide rail assembly and the secondary slide rail assembly;

[0024] Figure 9 is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of the present application, used to show a guide wheel;

[0025] Figure 10 is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of the present application, used to show a reducing pulley.

[0026] In the figure: X, first extension direction; Y, second extension direction; 100, transmission mechanism; 110, support; 120, primary slide rail assembly; 121, primary slide rail; 130, secondary slide rail assembly; 131, secondary slide rail; 140, transmission belt assembly; 141, first fixed pulley; 142, second fixed pulley; 143, first primary movable pulley; 144, second primary movable pulley; 145, third primary movable pulley; 146, fourth primary movable pulley; 147, secondary movable pulley; 148, guide wheel; 1410, tension pulley; 149, transmission belt; 150, driving source. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] Please see Figures 1 to 10 , Figure 1 This is a schematic diagram of the overall structure of an embodiment of the transmission mechanism of this application, used to show that both the primary slide rail assembly and the secondary slide rail assembly have the minimum extension amount; Figure 2 This is a schematic diagram of the overall structure of an embodiment of the transmission mechanism of this application, used to show that the first-stage slide rail assembly has the maximum extension and the second-stage slide rail assembly has the minimum extension. Figure 3 This is a schematic diagram of the overall structure of an embodiment of the transmission mechanism of this application, used to show that the first-stage slide rail assembly and the second-stage slide rail assembly are at their maximum extension. Figure 4 This is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of this application, used to show that the primary slide rail assembly includes a primary slide rail and the secondary slide rail assembly includes multiple secondary slide rails; Figure 5 This is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of this application, used to show that the last stage secondary slide rail is provided with a secondary movable pulley; Figure 6 This is a partial structural schematic diagram of an embodiment of the transmission mechanism of this application, used to illustrate the drive source; Figure 7 This is a partial structural schematic diagram of another embodiment of the transmission mechanism of this application, used to illustrate another driving source; Figure 8 This is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of this application, used to illustrate various arrangements of the primary slide rail assembly and the secondary slide rail assembly; Figure 9 This is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of this application, used to show the guide wheel; Figure 10 This is a schematic diagram of the overall structure of another embodiment of the transmission mechanism of this application, used to illustrate the reduction of a certain pulley.

[0030] One embodiment of this application discloses a transmission mechanism 100, such as... Figures 1 to 3As shown, the transmission mechanism 100 comprises a bracket 110, a first slide rail assembly 120, a second slide rail assembly 130 and a transmission belt assembly 140. The first slide rail assembly 120 is slidingly supported on the bracket 110 and is capable of extending and retracting along a first extension direction X relative to the bracket 110. The second slide rail assembly 130 is slidingly supported on the first slide rail assembly 120 and is capable of synchronously moving with the first slide rail assembly 120 along the first extension direction X and extending and retracting along a second extension direction Y relative to the first slide rail assembly 120. The first extension direction X and the second extension direction Y are arranged in a cross manner, so that the first slide rail assembly 120 and the second slide rail assembly 130 can realize transmission in two directions. The transmission belt assembly 140 is used to associate the bracket 110, the first slide rail assembly 120 and the second slide rail assembly 130, so as to drive the first slide rail assembly 120 and the second slide rail assembly 130 to perform extension and retraction actions under the driving of a same driving source 150. When the transmission belt assembly 140 moves along a first movement direction, the first slide rail assembly 120 performs the extension action prior to the second slide rail assembly 130. When the transmission belt assembly 140 moves along a second movement direction opposite to the first movement direction, the second slide rail assembly 130 performs the retraction action prior to the first slide rail assembly 120.

[0031] Therefore, when the transmission belt assembly 140 continuously moves along the first movement direction, the first slide rail assembly 120 extends relative to the bracket 110 along the first extension direction X to a maximum extension amount of the first extension direction X. Meanwhile, the second slide rail assembly 130 synchronously extends with the first slide rail assembly 120 to the maximum extension amount of the first extension direction X. The transmission belt assembly 140 continues to move along the first movement direction, and the second slide rail assembly 130 extends relative to the first slide rail assembly 120 along the second extension direction Y to a maximum extension amount of the second extension direction Y. At this time, the transmission mechanism 100 is in a fully extended state. In the process of extending the transmission mechanism 100 to the fully extended state, the first slide rail assembly 120 and the second slide rail assembly 130 realize the extension in the first extension direction X and the second extension direction Y in sequence, so that the collision or obstruction caused by the early extension of the second slide rail assembly 130 in the second extension direction Y can be avoided.

[0032] Thus, when the transmission belt assembly 140 continues to move in the second movement direction, the secondary slide rail assembly 130 first retracts in the second retracting direction Y to the maximum retraction amount relative to the primary slide rail assembly 120. The transmission belt assembly 140 continues to move in the second movement direction, and the primary slide rail assembly 120 retracts in the first retracting direction X to the maximum retraction amount in the first retracting direction X relative to the support 110; at the same time, the secondary slide rail assembly 130 retracts in the first retracting direction X to the maximum retraction amount in the first retracting direction X along with the primary slide rail assembly 120. At this time, the transmission mechanism 100 is in a fully retracted state. During the retraction of the transmission mechanism 100 to the fully retracted state, the secondary slide rail assembly 130 and the primary slide rail assembly 120 realize the sequential retraction in the second retracting direction Y and the first retracting direction X, so that the collision or obstruction caused by the early retraction of the secondary slide rail assembly 130 in the second retracting direction Y can be avoided.

[0033] By mounting the animal to be conveyed on the secondary slide rail assembly 130, the automatic extension of the animal to be conveyed in the first retracting direction X and the automatic extension of the animal to be conveyed in the second retracting direction Y can be realized, and the automatic retraction of the animal to be conveyed in the second retracting direction Y and the automatic retraction of the animal to be conveyed in the second retracting direction Y can be realized, which facilitates the user to take and place the articles and saves the user's physical energy. For example, the extension direction of the secondary slide rail assembly 130 can be upward or obliquely upward, which facilitates the upward transmission of the animal to be conveyed mounted on the secondary slide rail assembly 130, and the user does not have to bend down to take and place the articles. For another example, the extension direction of the secondary slide rail assembly 130 can be downward or obliquely downward, which facilitates the downward transmission of the animal to be conveyed mounted on the secondary slide rail assembly 130, and the user does not have to climb high to take and place the articles.

[0034] By one transmission belt assembly 140 cooperating with two slide rail assemblies, the sequential movement of the secondary slide rail assembly 130 in the first retracting direction X and the second retracting direction Y can be realized, and the structure is simple, the volume is small, the cost is low, and the control logic is simple.

[0035] Specifically, the first retracting direction X can be a horizontal direction, and the second retracting direction Y can be a vertical direction. Thus, the primary slide rail assembly 120 can drive the secondary slide rail assembly 130 to retract in the horizontal direction, and then the secondary slide rail assembly 130 is lifted in the vertical direction. Of course, the first retracting direction X and the second retracting direction Y can also be other two intersecting directions.

[0036] In some embodiments, the secondary slide rail assembly 130 is provided with a restoring force that tends to retract the secondary slide rail assembly 130 to the retracted state, and the restoring force is greater than the sliding resistance of the primary slide rail assembly 120. It can be understood that the primary slide rail assembly 120 has a sliding resistance when it is extended or retracted, and the secondary slide rail assembly 130 also has a certain sliding resistance when it is extended or retracted, but the retraction restoring force additionally provided on the secondary slide rail assembly 130 makes it more easily retract relative to the primary slide rail assembly 120 and more difficult to extend.

[0037] Thus, when the transmission belt assembly 140 moves along the first movement direction, due to the fact that the retracting restoring force of the secondary slide rail assembly 130 is greater than the sliding resistance of the primary slide rail assembly 120, the primary slide rail assembly 120 preferentially overcomes the sliding resistance to drive the secondary slide rail assembly 130 to extend along the first extension direction X, and when the primary slide rail assembly 120 extends to the maximum extension amount, the secondary slide rail assembly 130 extends along the second extension direction Y against the retracting restoring force. Similarly, when the transmission belt assembly 140 moves along the second movement direction, due to the fact that the retracting restoring force of the secondary slide rail assembly 130 is greater than the sliding resistance of the primary slide rail assembly 120, the secondary slide rail assembly 130 preferentially retracts under the driving of the retracting restoring force, and when the secondary slide rail assembly 130 retracts to the maximum retraction amount, the primary slide rail assembly 120 drives the secondary slide rail assembly 130 to retract along the first extension direction X against the sliding resistance.

[0038] In some embodiments, when the angle between the retracting direction of the secondary slide rail assembly 130 in the second extension direction Y and the direction of gravity is less than 90°, i.e., the retracting direction is vertically downward or obliquely downward, the secondary slide rail assembly 130 is hung with a to-be-transported animal, and the component of the gravity of the to-be-transported animal along the second extension direction Y forms a restoring force, which causes the secondary slide rail assembly 130 to tend to be in the retracted state. Thus, after the secondary slide rail assembly 130 is loaded with the to-be-transported animal, the restoring force that causes the secondary slide rail assembly 130 to tend to be in the retracted state is naturally formed, and it is not necessary to additionally set other restoring forces, and the transmission mechanism 100 is simple in structure.

[0039] Specifically, when the transmission belt assembly 140 moves along the first movement direction, due to the gravity of the to-be-transported animal hung on the secondary slide rail assembly 130, the retracting restoring force of the secondary slide rail assembly 130 is greater than the sliding resistance of the primary slide rail assembly 120, the primary slide rail assembly 120 preferentially overcomes the sliding resistance to drive the secondary slide rail assembly 130 to extend along the first extension direction X, and when the primary slide rail assembly 120 extends to the maximum extension amount, the secondary slide rail assembly 130 extends along the second extension direction Y against the retracting restoring force. Similarly, when the transmission belt assembly 140 moves along the second movement direction, due to the gravity of the to-be-transported animal hung on the secondary slide rail assembly 130, the retracting restoring force of the secondary slide rail assembly 130 is greater than the sliding resistance of the primary slide rail assembly 120, the secondary slide rail assembly 130 preferentially retracts under the driving of the retracting restoring force, and when the secondary slide rail assembly 130 retracts to the maximum retraction amount, the primary slide rail assembly 120 drives the secondary slide rail assembly 130 to retract along the first extension direction X against the sliding resistance.

[0040] In some embodiments, the transmission mechanism 100 further comprises a resilient member (not shown in the figures) arranged on the second-stage slide rail assembly 130, which provides a restoring force when the second-stage slide rail assembly 130 is in the extended state, so that the second-stage slide rail assembly 130 is more easily retracted and more difficult to extend relative to the first-stage slide rail assembly 120 under the action of the resilient member. In this case, the angle between the extension direction of the second-stage slide rail assembly 130 in the second extension direction Y and the direction of gravity is not limited. For example, the extension direction of the second-stage slide rail assembly 130 can be upward or obliquely upward, facilitating the transmission of the object to be transmitted mounted on the second-stage slide rail assembly 130 to a high place without the user having to bend down to pick up or put down the object. For another example, the extension direction of the second-stage slide rail assembly 130 can be downward or obliquely downward, facilitating the transmission of the object to be transmitted mounted on the second-stage slide rail assembly 130 to a low place without the user having to climb to pick up or put down the object.

[0041] In some embodiments, the transmission mechanism 100 comprises a limiting member (not shown in the figures), which is used to limit the maximum extension amount of the first-stage slide rail assembly 120. When the first-stage slide rail assembly 120 is in the maximum extension amount, the limiting member provides a limiting resistance greater than the restoring force tending to retract the second-stage slide rail assembly 130, so that the limiting member prevents the first-stage slide rail assembly 120 from continuing to extend along the first extension direction X, and the transmission belt assembly 140 drives the second-stage slide rail assembly 130 to extend along the second extension direction Y against the restoring force. Specifically, the limiting member can be a stop block, a stop plate, or the like. When the first-stage slide rail assembly 120 is in the maximum extension amount, the first-stage slide rail assembly 120 abuts against the limiting member, and the first-stage slide rail assembly 120 cannot continue to extend along the first extension direction. The limiting member can be a magnetic attraction member. When the first-stage slide rail assembly 120 is in the maximum extension amount, the first-stage slide rail assembly 120 is attracted to the magnetic attraction member, and the first-stage slide rail assembly 120 cannot continue to extend along the first extension direction. Of course, the limiting member can also have other structures, which are not limited here.

[0042] Further, the limiting member is used to limit the minimum retraction amount of the first-stage slide rail assembly 120. When the first-stage slide rail assembly 120 is in the minimum retraction amount, the limiting member provides a limiting resistance greater than the restoring force tending to retract the second-stage slide rail assembly 130, so that the limiting member prevents the first-stage slide rail assembly 120 from preferentially retracting along the first extension direction X, and the second-stage slide rail assembly preferentially retracts along the second extension direction Y to the maximum retraction amount, and then the transmission belt assembly 140 drives the first-stage slide rail assembly 120 to retract along the first extension direction X against the limiting resistance. Specifically, the limiting member can be a magnetic attraction member. When the first-stage slide rail assembly 120 is in the minimum retraction amount, the first-stage slide rail assembly 120 is attracted to the magnetic attraction member, and the first-stage slide rail assembly 120 cannot preferentially retract along the first extension direction against the magnetic attraction force. Of course, the limiting member can also have other structures, which are not limited here.

[0043] In some embodiments, as shown in FIG. 1, the transmission mechanism 100 further comprises a first-stage slide rail assembly 120 and a second-stage slide rail assembly 130. The first-stage slide rail assembly 120 is arranged on the base 110 and is capable of extending along a first extension direction X. The second-stage slide rail assembly 130 is arranged on the first-stage slide rail assembly 120 and is capable of extending along a second extension direction Y. The second extension direction Y is different from the first extension direction X. The transmission mechanism 100 further comprises a transmission belt assembly 140 arranged on the first-stage slide rail assembly 120 and the second-stage slide rail assembly 130. The transmission belt assembly 140 is capable of driving the second-stage slide rail assembly 130 to extend along the second extension direction Y against the restoring force tending to retract the second-stage slide rail assembly 130. Figures 1 to 3As shown, the transmission belt assembly 140 comprises at least one fixed pulley (see the first fixed pulley 141), at least one primary movable pulley (see the first primary movable pulley 143), and a transmission belt 149, wherein the fixed pulley is rotationally supported on the support 110, and the primary movable pulley is rotationally supported on the primary slide rail assembly 120. The transmission belt 149 is wound around the fixed pulley and the primary movable pulley, and the transmission belt 149 is fixed relative to the secondary slide rail assembly 130. The transmission belt 149 is driven to move in the first movement direction and the second movement direction by the driving source 150, thereby driving the primary slide rail assembly 120 and the secondary slide rail assembly 130 to perform the extension and retraction actions.

[0044] Specifically, the transmission belt 149 is driven to move in the first movement direction by the driving source 150. Since the transmission belt 149 is fixed relative to the secondary slide rail assembly 130, and the transmission belt 149 is wound around the fixed pulley and the primary movable pulley, the primary movable pulley is extended relative to the fixed pulley in the first extension-retraction direction X to the maximum extension amount, i.e., the primary slide rail assembly 120 is extended relative to the support 110 in the first extension-retraction direction X to the maximum extension amount, and further drives the secondary slide rail assembly 130 to extend relative to the primary slide assembly in the second extension-retraction direction Y to the maximum extension amount. The transmission belt 149 is driven to move in the second movement direction by the driving source 150, the secondary slide rail assembly 130 is retracted relative to the primary slide assembly in the second extension-retraction direction Y to the maximum retraction amount, and further drives the primary movable pulley to retract relative to the fixed pulley in the first extension-retraction direction X to the maximum retraction amount, i.e., the primary slide rail assembly 120 is retracted relative to the support 110 in the first extension-retraction direction X to the maximum retraction amount.

[0045] Further, as shown, Figure 1 The fixed pulley comprises at least the first fixed pulley 141 and the second fixed pulley 142 which are spaced apart along the first extension-retraction direction X, and the first fixed pulley 141 and the second fixed pulley 142 cooperate, and the transmission belt 149 is alternately wound around the first fixed pulley 141 and the second fixed pulley 142 in opposite directions, so that the transmission belt 149 remains to extend along the first extension-retraction direction X. The primary movable pulley comprises at least the first primary movable pulley 143, the second primary movable pulley 144, the third primary movable pulley 145, and the fourth primary movable pulley 146, wherein the first primary movable pulley 143 cooperates with the first fixed pulley 141 to make the transmission belt 149 extend along the first extension-retraction direction X, thereby driving the primary slide rail assembly 120 to perform the extension and retraction actions. The second primary movable pulley 144 cooperates with the first primary movable pulley 143, the third primary movable pulley 145 cooperates with the second fixed pulley 142, to make the transmission belt 149 change from extending along the first extension-retraction direction X to extending along the second extension-retraction direction Y. The fourth primary movable pulley 146 cooperates with the second primary movable pulley 144 and the third primary movable pulley 145 to make the transmission belt 149 remain to extend along the second extension-retraction direction Y, thereby driving the secondary slide rail assembly 130 to perform the extension and retraction actions.

[0046] Further, as shown in Figure 4 order to increase the total stroke in the first extension direction X, the first-stage slide rail assembly 120 includes at least two first-stage slide rails 121 arranged side by side, the second first-stage movable pulley 144, the third first-stage movable pulley 145 and the fourth first-stage movable pulley 146 are rotatably supported on the last first-stage slide rail 121 among the at least two first-stage slide rails 121, and the first first-stage movable pulleys 143 are provided in a plurality of numbers and arranged on the at least two first-stage slide rails 121 respectively, so that the transmission belt 149 between the second first-stage movable pulley 144 and the first fixed pulley 141 reciprocates along the first extension direction X, thereby driving the at least two first-stage slide rails 121 to extend and retract along the first extension direction X in a cascading manner. Specifically, in order to facilitate the reciprocation of the transmission belt 149 along the first extension direction X, two first first-stage movable pulleys 143 are rotatably arranged at both ends of each first-stage slide rail 121 except the last first-stage slide rail 121.

[0047] It should be noted that the order of extension and retraction of each first-stage slide rail 121 along the first extension direction X is not limited in sequence, and various modes such as sequentially or synchronously can be adopted, as long as each first-stage slide rail 121 is extended to the maximum extension amount along the first extension direction X, and then the second-stage slide rail assembly 130 is extended; and after the second-stage slide rail assembly 130 is retracted to the maximum retraction amount, each first-stage slide rail 121 is retracted along the first extension direction X. Both ends of each first-stage slide rail 121 are limited, and when sliding to the end during extension or retraction, it is blocked and cannot continue to slide.

[0048] In some embodiments, as shown in Figure 4 order to increase the total stroke in the second extension direction Y, the second-stage slide rail assembly 130 includes at least two second-stage slide rails 131 arranged side by side, the transmission belt 149 is fixed to the last second-stage slide rail 131 among the at least two second-stage slide rails 131, and the second second-stage movable pulleys 147 are provided in a plurality of numbers and arranged on the remaining second-stage slide rails 131 respectively, so that the transmission belt 149 between the third first-stage movable pulley 145 and the fourth first-stage movable pulley 146 reciprocates along the second extension direction Y, thereby driving the at least two second-stage slide rails 131 to extend and retract along the second extension direction Y in a cascading manner. Specifically, in order to facilitate the reciprocation of the transmission belt 149 along the second extension direction Y, two first second-stage movable pulleys 147 are rotatably arranged at both ends of each second-stage slide rail 131 except the last second-stage slide rail 131.

[0049] It can be understood that in order to maximize the transmission stroke of the object to be transmitted, the object to be transmitted is fixed on the last second-stage slide rail 131 in the second-stage slide rail assembly 130, so that the object to be transmitted can be transmitted to the maximum extension amount in the second extension direction Y through the cooperation of the first-stage slide rail assembly 120 and the second-stage slide rail assembly 130.

[0050] Specifically, as shown in Figure 4 , the last stage of the secondary slide rail 131 can not be provided with a secondary movable pulley 147, and only a fixed transmission belt 149. Or, as shown in Figure 5 , the last stage of the secondary slide rail 131 can be provided with two secondary movable pulleys 147 at both ends, respectively, for the transmission belt 149 to be wound around, and the transmission belt 149 is fixed on the last stage of the secondary slide rail 131. These two setting modes can realize the extension and retraction of the last stage of the secondary slide rail 131, which is not limited here.

[0051] It should be noted that the order of extension and retraction of each secondary slide rail 131 along the second extension direction Y has no priority, and can be in various modes such as sequentially or synchronously, as long as each secondary slide rail 131 is extended after the primary slide rail assembly 120 is extended to the maximum extension along the first extension direction X; and each secondary slide rail 131 is retracted to the maximum retraction, and the primary slide rail assembly 120 is retracted along the first extension direction X. Each end of the secondary slide rail 131 is limited, and when it is slid to the end, it is blocked and cannot continue to slide.

[0052] In some embodiments, as shown in Figure 4 and Figure 6 , the driving source 150 is arranged on the pulley of any slide rail to drive the pulley to rotate, thereby driving the transmission belt 149 to drive. Preferably, the driving source 150 can be arranged on any fixed pulley to drive the fixed pulley to rotate, thereby driving the transmission belt 149 to drive. Specifically, the driving source 150 can be a linear motor. In other embodiments, as shown in Figure 7 , the driving source 150 can also include a driving pulley 151 and a linear motor 152 driving the driving pulley 151 to rotate, and the driving pulley 151 is arranged separately at any position of the transmission belt 149 passage.

[0053] Further, the transmission belt 149 can be a belt, and at this time each pulley is a belt pulley. The transmission belt 149 can also be a chain, and at this time each pulley is a sprocket. The transmission belt 149 can also be a triangular belt, and at this time each pulley is a triangular belt pulley. The transmission belt 149 can also be a rope, and at this time the driving pulley 151 can be wound several turns of rope to prevent the rope from sliding.

[0054] As shown in Figure 8 b of the figure, when the transmission belt 149 is a rope, in order to ensure the rigidity of the movement of the entire pulley winding by tightening the rope, the transmission belt 149 can use a rope with elasticity or add a tightening tension pulley 1410, or the length direction of each stage of the slide rail has a certain elastic extension, thereby ensuring the tension of the rope.

[0055] It can be understood that the primary slide rail 121 and the secondary slide rail 131 can be arranged one to multiple to increase the total stroke of the first extension direction X and / or the second extension direction Y. The arrangement of the primary slide rail assembly 120 and the secondary slide rail assembly 130 also has multiple modes. For example, when the first extension direction X is the horizontal direction and the second extension direction Y is the vertical direction, each primary slide rail 121 can slide from left to right or from right to left, and each primary slide rail 121 can be arranged from top to bottom or from bottom to top; the secondary slide rail 131 can be arranged upward or downward relative to the primary slide rail 121, and each secondary slide rail 131 can be arranged to the left or to the right, which can realize transmission in each direction. The following will be described in combination with several specific embodiments:

[0056] As shown in FIG. a of Figure 8 , the primary slide rail 121 is arranged with two sections and arranged from bottom to top, and slides horizontally to the right; the secondary slide rail 131 is arranged with two sections, the secondary slide rail 131 is arranged downward relative to the primary slide rail 121, and is arranged to the right and slides upward.

[0057] As shown in FIG. b of Figure 8 , the primary slide rail 121 is arranged with two sections and arranged from bottom to top, and slides horizontally to the right; the secondary slide rail 131 is arranged with two sections, the secondary slide rail 131 is arranged upward relative to the primary slide rail 121, and is arranged to the right and slides upward.

[0058] As shown in FIG. c of Figure 8 , the primary slide rail 121 is arranged with two sections and arranged from bottom to top, and slides horizontally to the right; the secondary slide rail 131 is arranged with two sections, the secondary slide rail 131 is arranged upward relative to the primary slide rail 121, and is arranged to the left and slides upward.

[0059] In addition, as shown in Figure 9 , one or more guide wheels 148 can be added to change the rope path and optimize the structure interference problem in addition to the path around the base transmission belt 149. Alternatively, as shown in Figure 10 , one fixed pulley can be reduced, and the transmission belt 149 can be inserted obliquely around the primary slide rail assembly 120.

[0060] The above-mentioned several slide rail pulley arrangement forms show the diversity of the slide rail pulley arrangement in the method of the application. Other components or arrangement structures that meet the slide rail pulley arrangement principle can be combined in the method, which is not limited here.

[0061] A storage device (not shown) is provided in another embodiment of the present application, which comprises a storage assembly and the transmission mechanism 100 of any of the above embodiments, wherein the storage assembly is arranged on the secondary slide rail assembly 130 of the transmission mechanism 100. Specifically, the transmission mechanism 100 comprises the support 110, the primary slide rail assembly 120, the secondary slide rail assembly 130 and the transmission belt assembly 140. The primary slide rail assembly 120 is slidingly supported on the support 110 and can extend and retract along the first extension direction X relative to the support 110. The secondary slide rail assembly 130 is slidingly supported on the primary slide rail assembly 120, can move synchronously with the primary slide rail assembly 120 along the first extension direction X, and can extend and retract along the second extension direction Y relative to the primary slide rail assembly 120. The first extension direction X and the second extension direction Y are arranged in a cross manner, so that the primary slide rail assembly 120 and the secondary slide rail assembly 130 can realize transmission in two directions. The transmission belt assembly 140 is used to associate the support 110, the primary slide rail assembly 120 and the secondary slide rail assembly 130, so as to drive the primary slide rail assembly 120 and the secondary slide rail assembly 130 to extend and retract under the driving of the same driving source 150. When the transmission belt assembly 140 moves along the first movement direction, the primary slide rail assembly 120 extends first relative to the secondary slide rail assembly 130, and when the transmission belt assembly 140 moves along the second movement direction opposite to the first movement direction, the secondary slide rail assembly 130 retracts first relative to the primary slide rail assembly 120.

[0062] Therefore, when the transmission belt assembly 140 continuously moves along the first movement direction, the primary slide rail assembly 120 extends relative to the support 110 along the first extension direction X to the maximum extension amount of the first extension direction X, and at the same time, the secondary slide rail assembly 130 synchronously extends with the primary slide rail assembly 120 to the maximum extension amount of the first extension direction X. When the transmission belt assembly 140 continuously moves along the first movement direction, the secondary slide rail assembly 130 extends relative to the primary slide rail assembly 120 along the second extension direction Y to the maximum extension amount of the second extension direction Y. At this time, the transmission mechanism 100 is in a fully extended state. During the process of extending the transmission mechanism 100 to the fully extended state, the primary slide rail assembly 120 and the secondary slide rail assembly 130 realize the sequential extension along the first extension direction X and the second extension direction Y, so that the collision or obstruction caused by the early extension of the secondary slide rail assembly 130 along the second extension direction Y can be avoided.

[0063] Thus, when the transmission belt assembly 140 continues to move in the second movement direction, the secondary slide rail assembly 130 first retracts in the second retracting direction Y to the maximum retraction amount relative to the primary slide rail assembly 120. The transmission belt assembly 140 continues to move in the second movement direction, and the primary slide rail assembly 120 retracts in the first retracting direction X to the maximum retraction amount of the first retracting direction X relative to the support 110; at the same time, the secondary slide rail assembly 130 retracts in the first retracting direction X to the maximum retraction amount of the first retracting direction X along with the primary slide rail assembly 120. At this time, the transmission mechanism 100 is in a fully retracted state. During the process of retracting the transmission mechanism 100 to the fully retracted state, the secondary slide rail assembly 130 and the primary slide rail assembly 120 realize the sequential retraction in the second retracting direction Y and the first retracting direction X, so as to avoid collision or encountering obstacles caused by the secondary slide rail assembly 130 retracting in the second retracting direction Y in advance.

[0064] By mounting the storage assembly on the secondary slide rail assembly 130, the storage assembly can be automatically extended in the first retracting direction X and then extended in the second retracting direction Y, and the storage assembly can be automatically retracted in the second retracting direction Y and then retracted in the second retracting direction Y, which facilitates the user to take and place the articles and saves the user's physical energy. For example, the extension direction of the secondary slide rail assembly 130 can be upward or obliquely upward, so as to facilitate the transmission of the storage assembly mounted on the secondary slide rail assembly 130 to a high place, without the user having to bend down to take and place the articles. For another example, the extension direction of the secondary slide rail assembly 130 can be downward or obliquely downward, so as to facilitate the transmission of the storage assembly mounted on the secondary slide rail assembly 130 to a low place, without the user having to climb high to take and place the articles.

[0065] By using one transmission belt assembly 140 to cooperate with two slide rail assemblies, the secondary slide rail assembly 130 can realize the sequential movement in the first retracting direction X and the second retracting direction Y, which has the advantages of simple structure, small size, low cost, simple control logic, low noise, and meeting the user experience. In some embodiments, the storage device can be a refrigerator, and in other embodiments, the storage device can also be a household cabinet, etc.

[0066] Specifically, the first retracting direction X can be a horizontal direction, and the second retracting direction Y can be a vertical direction. Thus, the primary slide rail assembly 120 can drive the secondary slide rail assembly 130 to retract in the horizontal direction, and then the secondary slide rail assembly 130 is lifted in the vertical direction. Of course, the first retracting direction X and the second retracting direction Y can also be other two intersecting directions.

[0067] In some embodiments, the secondary slide rail assembly 130 is provided with a restoring force that tends to make the secondary slide rail assembly 130 to be in the retracted state, and the restoring force is greater than the sliding resistance of the primary slide rail assembly 120. It can be understood that the primary slide rail assembly 120 has a sliding resistance when it is extended or retracted, and the secondary slide rail assembly 130 also has a sliding resistance when it is extended or retracted, but the restoring force provided additionally on the secondary slide rail assembly 130 makes it more easily retracted and more difficult to extend relative to the primary slide rail assembly 120.

[0068] Therefore, when the transmission belt assembly 140 moves in the first movement direction, because the restoring force of the secondary slide rail assembly 130 is greater than the sliding resistance of the primary slide rail assembly 120, the primary slide rail assembly 120 preferentially overcomes the sliding resistance to drive the secondary slide rail assembly 130 to extend in the first extension direction X, and when the primary slide rail assembly 120 extends to the maximum extension, the secondary slide rail assembly 130 overcomes the restoring force to extend in the second extension direction Y. Similarly, when the transmission belt assembly 140 moves in the second movement direction, because the restoring force of the secondary slide rail assembly 130 is greater than the sliding resistance of the primary slide rail assembly 120, the secondary slide rail assembly 130 preferentially retracts under the driving of the restoring force, and when the secondary slide rail assembly 130 retracts to the maximum retraction, the primary slide rail assembly 120 overcomes the sliding resistance to drive the secondary slide rail assembly 130 to retract in the first extension direction X.

[0069] Specifically, when the angle between the retraction direction of the secondary slide rail assembly 130 in the second extension direction Y and the direction of gravity is less than 90°, i.e., the retraction direction is vertical downward or oblique downward, the component of the gravity of the storage assembly along the second extension direction Y forms a restoring force that tends to make the secondary slide rail assembly 130 to be in the retracted state. Therefore, after the secondary slide rail assembly 130 is loaded, the restoring force that tends to make the secondary slide rail assembly 130 to be in the retracted state is naturally formed, and no other restoring force needs to be additionally provided, and the transmission mechanism 100 has a simple structure.

[0070] Specifically, when the transmission belt assembly 140 moves along the first movement direction, due to the gravity of the storage assembly hung on the secondary slide rail assembly 130, the retracting restoring force of the secondary slide rail assembly 130 is greater than the sliding resistance of the primary slide rail assembly 120, the primary slide rail assembly 120 preferentially drives the secondary slide rail assembly 130 to extend along the first extension direction X by overcoming the sliding resistance, and when the primary slide rail assembly 120 extends to the maximum extension, the secondary slide rail assembly 130 extends along the second extension direction Y by overcoming the retracting restoring force.

[0071] At least one transmission mechanism 100 is arranged on each storage assembly, preferably, the two sides of the storage assembly are respectively provided with the transmission mechanism 100, so that the two sets of transmission mechanisms 100 are combined to lift the storage assembly, and the working force of each set of transmission mechanism 100 can be reduced. Each set of transmission mechanism 100 can be independently configured with a driving source 150, or can share one driving source 150 through connecting rod transmission or transmission belt 149.

[0072] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. All directional indications (such as upper, lower, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not limit to the listed steps or units, but optionally includes steps or units not listed, or optionally includes other steps or units inherent to the process, method, product or device.

[0073] The above description is only for the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A transmission mechanism, characterized in that, The transmission mechanism includes: support; A primary slide rail assembly is slidably supported on the bracket and can extend and retract relative to the bracket in a first telescopic direction; The secondary slide rail assembly is slidably supported on the primary slide rail assembly, and can move synchronously with the primary slide rail assembly along the first extension direction, and can extend and retract relative to the primary slide rail assembly along the second extension direction. The first extension direction and the second extension direction are arranged to intersect each other. A drive belt assembly is used to connect the bracket, the primary slide rail assembly, and the secondary slide rail assembly to drive the primary slide rail assembly and the secondary slide rail assembly to perform extension and retraction actions under the drive of the same drive source; Specifically, when the transmission belt assembly moves along the first direction of motion, the primary slide rail assembly extends before the secondary slide rail assembly; when the transmission belt assembly moves along the second direction of motion opposite to the first direction of motion, the secondary slide rail assembly retracts before the primary slide rail assembly; the secondary slide rail assembly is provided with a restoring force that causes the secondary slide rail assembly to tend to retract, and the restoring force is greater than the sliding resistance of the primary slide rail assembly.

2. The transmission mechanism as described in claim 1, characterized in that, The secondary slide rail assembly carries the object to be transported, and the component of the weight of the object to be transported along the second extension direction forms the restoring force.

3. The transmission mechanism as described in claim 1, characterized in that, The transmission mechanism includes an elastic element disposed on the secondary slide rail assembly, the elastic element providing the restoring force when the secondary slide rail assembly is in the extended state.

4. The transmission mechanism as described in claim 1, characterized in that, The transmission mechanism includes a limiting member, which is used to limit the maximum extension and minimum retraction of the first-stage slide rail assembly. The limiting resistance provided by the limiting member when the first-stage slide rail assembly is at its maximum extension and minimum retraction is greater than the restoring force.

5. The transmission mechanism as described in claim 1, characterized in that, The transmission belt assembly includes at least one fixed pulley, at least one primary movable pulley, and a transmission belt. The fixed pulley is rotatably supported on the bracket, and the primary movable pulley is rotatably supported on the primary slide rail assembly. The transmission belt is wound around the fixed pulley and the primary movable pulley and is fixed relative to the secondary slide rail assembly. Driven by the drive source, the transmission belt moves along the first movement direction and the second movement direction, thereby driving the primary slide rail assembly and the secondary slide rail assembly to perform extension and retraction actions.

6. The transmission mechanism as described in claim 5, characterized in that, The fixed pulley includes at least a first fixed pulley and a second fixed pulley spaced apart along the first extension direction. The first fixed pulley cooperates with the second fixed pulley to keep the transmission belt extending along the first extension direction. The primary movable pulley includes at least a first primary movable pulley, a second primary movable pulley, a third primary movable pulley, and a fourth primary movable pulley. The first primary movable pulley cooperates with the first fixed pulley to keep the transmission belt extending along the first extension direction, thereby driving the primary slide rail assembly to extend and retract. The second primary movable pulley cooperates with the first primary movable pulley. The third primary movable pulley cooperates with the second fixed pulley to change the transmission belt from extending along the first extension direction to extending along the second extension direction. The fourth primary movable pulley cooperates with the second and third primary movable pulleys to keep the transmission belt extending along the second extension direction, thereby driving the secondary slide rail assembly to extend and retract.

7. The transmission mechanism as described in claim 6, characterized in that, The primary slide rail assembly includes at least two primary slide rails arranged side by side. The second, third, and fourth primary movable pulleys are rotatably supported on the last of the at least two primary slide rails. There are multiple first primary movable pulleys, which are respectively arranged on the at least two primary slide rails, so that the transmission belt between the second primary movable pulley and the first fixed pulley extends back and forth along the first extension direction, thereby driving the at least two primary slide rails to extend and retract in a cascaded manner along the first extension direction.

8. The transmission mechanism as described in claim 6, characterized in that, The secondary slide rail assembly includes at least two secondary slide rails arranged side by side. The transmission belt is fixed to the last of the at least two secondary slide rails. The transmission belt assembly includes at least two secondary movable pulleys, which are rotatably supported on the remaining secondary slide rails. The transmission belt is further wound around the secondary movable pulleys so that the transmission belt between the third and fourth primary movable pulleys extends reciprocally along the second extension direction, thereby driving the at least two secondary slide rails to extend and retract in a cascaded manner along the second extension direction.

9. A storage device, characterized in that, It includes a storage component and a transmission mechanism as described in any one of claims 1-8, wherein the storage component is disposed on the secondary slide rail assembly of the transmission mechanism.

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