Shelf device and refrigerator

Abstract

The utility model provides a shelf device and refrigerator, including: transmission mechanism, transmission mechanism includes fixed gear and with fixed gear's inner gear ring meshing transmission gear, the transmission gear is rotatablely set up around its own axis, the transmission gear is connected with the support rod mutually perpendicular to transmission gear, and the support rod is connected with the transmission gear. The connecting position of the supporting rod coincides with the reference circle of the transmission gear. The shelf is connected with the supporting rod so as to support the shelf; and the driving mechanism is in driving connection with the transmission gear, and when the driving mechanism drives the transmission gear to rotate, the transmission gear drives the supporting rod to linearly move so as to control the shelf to ascend and descend. According to the shelf device, the placement height of the shelf can be freely adjusted, the use requirements of a user for multiple scenes of the height of the shelf are met, and the technical problems that in the prior art, the shelf device cannot achieve free adjustment of the height of the shelf, and the requirements of the user for various use scenes cannot be met are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerator shelves, and particularly relates to a shelf device and a refrigerator. Background Art

[0002] Due to the upgrading of refrigerator consumption, users have higher requirements for the use experience of refrigerators, requiring refrigerators to meet the various scenario usage needs of users, and requiring the interior decoration and structure to be simple, bright, and without excessive structure for decoration.

[0003] Among them, one of the interior parts of the refrigerator is the shelf. There are many assembly methods for it. In order to facilitate the height adjustment of the shelf, multiple placement ribs are designed on the inner liner of the box, which not only occupies the usable volume of the refrigerator, but also makes the interior decoration and structure of the refrigerator cumbersome and bulky. Moreover, the height of the shelf cannot be freely adjusted through the rib structure, and it cannot meet the various usage scenario needs of users.

[0004] Therefore, the prior art needs to be further developed. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and provide a shelf device and a refrigerator to solve the technical problem that the shelf device in the related art cannot realize the free height adjustment of the shelf and cannot meet the various usage scenario needs of users.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions: A shelf device is provided, including: a transmission mechanism, the transmission mechanism includes a fixed gear and a transmission gear meshing with the internal gear ring of the fixed gear. The transmission gear is rotatably arranged around its own axis, and a support rod perpendicular to the transmission gear is connected to the transmission gear. The connection position of the support rod coincides with the pitch circle of the transmission gear; a shelf, the shelf is connected to the support rod to support the shelf; a driving mechanism, the driving mechanism is drivingly connected to the transmission gear. When the driving mechanism drives the transmission gear to rotate, the transmission gear drives the support rod to move linearly to control the lifting of the shelf.

[0007] Further, the tooth number ratio of the transmission gear to the fixed gear is 1:2.

[0008] Further, the driving mechanism includes: a driving gear, the driving gear is rotatably arranged, and the axis of the driving gear is collinear with the axis of the fixed gear; a transmission connecting plate, one end of the transmission connecting plate is connected to the axis of the driving gear, and the other end of the transmission connecting plate is connected to the axis of the transmission gear; when the driving gear rotates, the transmission gear is driven to rotate around the axis of the driving gear through the transmission connecting plate, so that the transmission gear rotates around its own axis.

[0009] Further, the driving mechanism includes: an external force gear, which meshes with the driving gear; an external force driving rod, which is connected to the external force gear, so as to drive the external force gear to rotate by rotating the external force driving rod externally.

[0010] Further, the driving mechanism includes an external force knob, which is connected to the external force driving rod, and the external force knob is provided with a holding portion corresponding to the shape of a finger.

[0011] Further, a connecting plate is fixedly connected to a side of the transmission gear away from the driving gear, and a support rod is installed at a position corresponding to the pitch circle of the transmission gear on the connecting plate.

[0012] Further, the shelf device includes an installation box body enclosed by a front cover and a rear cover arranged oppositely, and a transmission mechanism and a driving mechanism are accommodated inside the installation box body; the front cover is provided with a lifting groove extending along the movement direction of the support rod and a connecting groove for the external force driving rod to pass through, and the support rod passes through the lifting groove and is connected to the shelf.

[0013] Further, a locking portion protruding from the external force gear is provided at one end of the external force driving rod close to the rear cover, a locking groove is provided on the rear cover corresponding to the locking portion, and the external force driving rod is movably arranged along the extending direction of the external force driving rod, so that the locking portion is connected or disconnected from the locking groove.

[0014] Further, a plurality of installation holes are provided on a side of the rear cover close to the driving mechanism, fixing spokes are installed on a side of the fixed gear close to the rear cover, and fasteners pass through the fixing spokes and are fixedly connected to the plurality of installation holes to fix the fixed gear to the rear cover.

[0015] Further, the transmission mechanism includes at least two transmission gears, and correspondingly, the support rod includes at least two. The at least two transmission gears are arranged at intervals in the horizontal direction, so that the at least two support rods jointly support the shelf.

[0016] A refrigerator, which includes the above-mentioned shelf device.

[0017] Further, the refrigerator includes a group of shelf devices. The group of shelf devices includes a first shelf device and a second shelf device arranged oppositely. The first shelf device and the second shelf device are respectively embedded on two oppositely arranged inner walls of the refrigerator; there are a plurality of groups of shelf devices, and the plurality of groups of shelf devices are arranged at intervals along the height direction of the refrigerator.

[0018] Beneficial effects:

[0019] 1. The driving mechanism drives the transmission gear to rotate, causing the support rod at a specific position to move along a predetermined trajectory, so that the support rod completes a linear motion and drives the shelf to move up and down. Through the transmission system composed of the transmission mechanism and the driving mechanism, the placement height of the shelf can be freely adjusted, meeting the user's multi-scenario usage requirements for the shelf height, and solving the technical problem that the shelf device in the related art cannot achieve free adjustment of the shelf height and cannot meet the user's various usage scenario requirements.

[0020] 2. Specifically, when the tooth ratio of the transmission gear to the fixed gear is 1:2 and the connection position of the support rod coincides with the pitch circle of the transmission gear, the motion trajectory of the support rod forms a straight line at this time, and the support rod can achieve reciprocating linear motion. At this time, it is ensured that when the shelf is at the top height, the support rod is at the highest point of the pitch circle, and the support rod can move linearly along the vertical direction, so as to realize the free adjustment of the shelf height along the vertical direction.

[0021] 3. Applying the shelf device in this embodiment to a refrigerator, the placement height of the shelf can be freely adjusted as a whole, and more adjustable height spaces can be achieved through staggered shelves. By using the control of the transmission system of the mechanical mechanism fixed gear - transmission gear - transmission shaft and related connecting parts, the shelf can move up and down freely within the module transmission system. When the shelf moves, it is blocked by the front cover, which not only enables the shelf to move up and down freely within the shelf device to meet the user's various usage scenario requirements, but also makes the internal structure of the refrigerator simple and bright. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an exploded view of the shelf device adopted in the embodiment of the present utility model;

[0023] Figure 2 is a schematic diagram of the principle of the shelf device adopted in the embodiment of the present utility model;

[0024] Figure 3 is an internal structure schematic diagram of another perspective of the shelf device adopted in the embodiment of the present utility model;

[0025] Figure 4 is a structural schematic diagram of the driving mechanism of the shelf device adopted in the embodiment of the present utility model;

[0026] Figure 5 is a sectional view of the shelf device adopted in the embodiment of the present utility model when the shelf is in the upper part;

[0027] Figure 6 is a sectional view of the shelf device adopted in the embodiment of the present utility model when the shelf is in the lower part;

[0028] Figure 7It is a schematic structural diagram of the shelf device adopted in the embodiment of the present utility model in the working state;

[0029] Figure 8 It is a schematic structural diagram of the shelf device adopted in the embodiment of the present utility model in the locked state;

[0030] Figure 9 It is an axonometric view of the shelf device adopted in the embodiment of the present utility model;

[0031] Figure 10 It is a front view of the shelf device adopted in the embodiment of the present utility model;

[0032] Figure 11 It is an axonometric view of the shelf device adopted in the embodiment of the present utility model with the front cover removed;

[0033] Figure 12 It is a front view of the shelf device adopted in the embodiment of the present utility model with the front cover removed;

[0034] Figure 13 It is a rear view of the shelf device adopted in the embodiment of the present utility model;

[0035] Figure 14 It is a rear view of the shelf device adopted in the embodiment of the present utility model with the rear cover removed;

[0036] Figure 15 It is a front view of the refrigerator adopted in the embodiment of the present utility model;

[0037] Figure 16 It is a schematic internal structure diagram of the refrigerator adopted in the embodiment of the present utility model;

[0038] Figure 17 It is an axonometric view of the refrigerator adopted in the embodiment of the present utility model;

[0039] Figure 18 It is a schematic structural diagram of the shelf device group of the refrigerator adopted in the embodiment of the present utility model in the first working position;

[0040] Figure 19 It is a schematic structural diagram of the shelf device group of the refrigerator adopted in the embodiment of the present utility model in the second working position;

[0041] Figure 20 It is a schematic structural diagram when the shelf of the refrigerator adopted in the embodiment of the present utility model is in the upper part;

[0042] Figure 21 It is a schematic structural diagram when the shelf of the shelf device adopted in the embodiment of the present utility model is in the upper part;

[0043] Figure 22It is a schematic structural diagram when the shelf of the refrigerator adopted in the embodiment of the present utility model is in the middle;

[0044] Figure 23 It is a schematic structural diagram when the shelf of the shelf device adopted in the embodiment of the present utility model is in the middle;

[0045] Figure 24 It is a schematic structural diagram when the shelf of the refrigerator adopted in the embodiment of the present utility model is in the lower part;

[0046] Figure 25 It is a schematic structural diagram when the shelf of the shelf device adopted in the embodiment of the present utility model is in the lower part.

[0047] Among them, the above-mentioned drawings include the following reference numerals:

[0048] 11. Fixed gear; 111. Inner gear ring; 112. Fixed spoke; 12. Driving gear; 121. Connecting plate; 2. Support rod; 3. Shelf; 4. Driving gear; 41. Driving connecting plate; 5. External force gear; 51. External force driving rod; 511. Locking part; 52. External force knob; 521. Holding part; 61. Front cover; 62. Rear cover; 6. Installation box body; 611. Lifting groove; 612. Connecting groove; 621. Locking groove; 622. Installation hole; 623. Fastener;

[0049] 101. First shelf device; 102. Second shelf device. Detailed implementation manners

[0050] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 efforts shall fall within the protection scope of the present application.

[0051] According to an embodiment of the present utility model, a shelf device is provided. Please refer to Figures 1 to 25 , including: a transmission mechanism, the transmission mechanism includes a fixed gear 11 and a driving gear 12 meshing with the inner gear ring 111 of the fixed gear 11. The driving gear 12 is rotatably arranged around its own axis. A support rod 2 perpendicular to the driving gear 12 is connected to the driving gear 12. The connection position of the support rod 2 coincides with the pitch circle of the driving gear 12; a shelf 3, the shelf 3 is connected to the support rod 2 to support the shelf 3; a driving mechanism, the driving mechanism is drivingly connected to the driving gear 12. When the driving mechanism drives the driving gear 12 to rotate, the driving gear 12 drives the support rod 2 to move linearly to control the lifting of the shelf 3.

[0052] Specifically, the fixed gear 11 and the transmission gear 12 meshing with the internal gear ring 111 of the fixed gear 11 form a planetary gear structure. While the transmission gear 12 revolves around the axis of the fixed gear 11, it also causes the transmission gear 12 to rotate on its own axis.

[0053] By driving the transmission gear 12 to rotate through the driving mechanism, the support rod 2 at a specific position is moved along a predetermined trajectory, so that the support rod 2 completes a linear motion and drives the shelf 3 to move up and down. Through the transmission system composed of the transmission mechanism and the driving mechanism, the placement height of the shelf can be freely adjusted, meeting the user's multi-scenario usage requirements for the shelf height, and solving the technical problems that the shelf device in the related art cannot freely adjust the shelf height and cannot meet the user's various usage scenario requirements.

[0054] In the shelf device of this embodiment, refer to Figure 2 , the tooth number ratio of the transmission gear 12 to the fixed gear 11 is 1:2. Specifically, when the tooth number ratio of the transmission gear 12 to the fixed gear 11 is 1:2 and the connection position of the support rod 2 coincides with the pitch circle of the transmission gear 12, at this time, the movement trajectory of the support rod 2 forms a straight line, and the support rod 2 can achieve reciprocating linear motion. At this time, it is ensured that when the shelf is at the top height, the support rod 2 is at the highest point of the pitch circle, and the support rod 2 can move linearly along the vertical direction, so as to realize the free adjustment of the shelf height along the vertical direction.

[0055] In the shelf device of this embodiment, refer to Figure 2 , the driving mechanism includes: a driving gear 4, the driving gear 4 is rotatably arranged, and the axis of the driving gear 4 is collinear with the axis of the fixed gear 11; a transmission connecting plate 41, one end of the transmission connecting plate 41 is connected to the axis of the driving gear 4, and the other end of the transmission connecting plate 41 is connected to the axis of the transmission gear 12; when the driving gear 4 rotates, the transmission gear 12 is driven to rotate around the axis of the driving gear 4 through the transmission connecting plate 41, so that the transmission gear 12 rotates around its own axis. By setting the driving gear 4, when the driving gear 4 rotates, the transmission gear 12 is driven to rotate around the axis of the fixed gear 11 through the transmission connecting plate 41, thereby causing the transmission gear 12 to rotate on its own axis, that is, the rotation of the transmission gear 12 around its own axis is caused by the revolution of the transmission gear 12.

[0056] In the shelf device of this embodiment, refer to Figure 2 , the driving mechanism includes: an external force gear 5, the external force gear 5 meshes with the driving gear 4; an external force driving rod 51, the external force driving rod 51 is connected to the external force gear 5, so as to drive the external force gear 5 to rotate by rotating the external force driving rod 51 by an external force. By setting the external force gear 5, the external force gear 5 is driven to rotate by an external force, thereby driving the driving gear 4 to rotate.

[0057] In some embodiments, the external force gear 5 can be driven to rotate by a driving component such as a motor.

[0058] In the shelf device of this embodiment, see Figure 2 The driving mechanism includes an external force knob 52, which is connected to the external force driving rod 51. The external force knob 52 is provided with a gripping portion 521 corresponding to the shape of a finger. Specifically, by manually turning the external force knob 52, the rotation of the external force gear 5 can be controlled, thereby realizing the free adjustment of the shelf height.

[0059] It can be understood that by setting the external force knob 52 to control the free movement of the shelf up and down, the structure of the driving mechanism is simplified, the setting of redundant driving motors and reduction mechanisms is avoided, and the side walls of the refrigerator are prevented from being too thick. At the same time, the user can adjust the height of the shelf according to the user's real-time needs, thereby achieving flexible customization.

[0060] In the shelf device of this embodiment, see Figure 2 , Figure 4 A connecting plate 121 is fixedly connected to the side of the transmission gear 12 away from the driving gear 4, and a support rod 2 is installed on the connecting plate 121 at a position corresponding to the pitch circle of the transmission gear 12. Specifically, since the connection position of the support rod 2 coincides with the pitch circle of the transmission gear 12, the connecting plate 121 is used to fix and install the support rod 2, and the support rod 2 is directly connected to the transmission gear 12 to avoid damaging the meshing teeth of the transmission gear 12, thereby reducing the processing difficulty of the transmission gear 12.

[0061] In some embodiments, see Figure 2 The end of the connecting plate 121 away from the support rod 2 is connected to the axis of the transmission gear 12, the radius of the transmission gear 12 is r, the inner diameter of the fixed gear is 2r, and the length of the connecting plate 121 is r.

[0062] In the shelf device of this embodiment, see Figure 2 The shelf device includes a mounting box body 6 formed by a front cover 61 and a rear cover 62 arranged opposite to each other, and a transmission mechanism and a driving mechanism are contained inside the mounting box body 6; the front cover 61 is provided with a lifting slot 611 extending along the movement direction of the support rod 2 and a connecting slot 612 for the external force driving rod 51 to pass through, and the support rod 2 passes through the lifting slot 611 to connect with the shelf 3. Specifically, by storing the transmission mechanism and the driving mechanism in the mounting box body 6, the transmission mechanism and other structures are prevented from being exposed. By applying the shelf device in this embodiment to a refrigerator, the neatness inside the refrigerator can be improved, and a simple and bright structure without ribs can be achieved.

[0063] Specifically, the rear cover 62 not only plays a role in fixing the shelf device to the refrigerator housing, but also plays a role in fixing the driving gear 4 and the fixed gear 11 .

[0064] Specifically, the external force knob 52 is connected to the external force driving rod 51 passing through the connection groove 612. The external force knob 52 can be controlled to rotate outside the installation box body 6 to control the up and down movement of the shelf 3.

[0065] When the shelf device in this embodiment is applied to a refrigerator, the shelf device is embedded in the inner wall of the refrigerator, the shelf is located inside the refrigerator, and the external force knob 52 is correspondingly arranged at a position close to the inner wall of the refrigerator, so as to facilitate the user to operate.

[0066] In the shelf device of this embodiment, referring to Figures 7 to 8 , a locking portion 511 protruding from the external force gear 5 is provided at one end of the external force driving rod 51 close to the rear cover 62. A locking groove 621 is correspondingly opened on the rear cover 62 for the locking portion 511. The external force driving rod 51 is movably arranged along the extending direction of the external force driving rod 51 so that the locking portion 511 is connected or disconnected from the locking groove 621. Through the above settings, when the locking portion 511 is connected to the locking groove 621, the shelf device is in a locked state at this time, and the external force driving rod 51 cannot rotate at this time, so that the height of the shelf is kept fixed. When the locking portion 511 is disconnected from the locking groove 621, the shelf device is in a working state at this time, and the external force driving rod 51 can rotate, so that the height of the shelf can be adjusted.

[0067] Specifically, referring to Figure 7 , there is a gap between the locking portion 511 and the locking groove 621. At this time, the shelf device is in a working state. Rotating the external force knob 52 can adjust the height of the shelf. When the adjustment is completed, press the external force knob 52 to make the locking portion 511 snap into the locking groove 621. Referring to Figure 8 , at this time, the shelf device is in a locked state, and the height of the shelf is kept fixed; when the height of the shelf 3 needs to be adjusted again, pull the external force knob 52 to disconnect the locking portion 511 from the locking groove 621.

[0068] In the shelf device of this embodiment, referring to Figures 5 - 6 , a plurality of mounting holes 622 are opened on one side of the rear cover 62 close to the driving mechanism. A fixing spoke 112 is mounted on one side of the fixed gear 11 close to the rear cover 62. The fastener 623 passes through the fixing spoke 112 and is fixedly connected to the plurality of mounting holes 622 to fix the fixed gear 11 to the rear cover 62. Through the above settings, the fixed gear 11 is fixed to the rear cover 62 to keep the fixed gear 11 fixed.

[0069] In some embodiments, mounting holes for mounting the driving gear 4 are opened on the rear cover 62, and the driving gear 4 is rotatably connected to the mounting holes.

[0070] Specifically, a meshing space for accommodating the transmission connecting plate 41 and the transmission gear 12 is formed between the fixed spoke 112 and the fixed gear 11.

[0071] In the shelf device of this embodiment, referring to Figures 1 - 2 , the transmission mechanism includes at least two transmission gears 12, and the support rods 2 correspondingly include at least two. The at least two transmission gears 12 are arranged at intervals along the horizontal direction so that the at least two support rods 2 jointly support the shelf 3. Through the above arrangement, the support strength and the object placement capacity of the shelf 3 are improved.

[0072] Preferably, the support rods 2 include two, the transmission mechanism and the fixed gear correspondingly include two, and the driving gears 4 also include two. The two driving gears 4 are respectively located on both sides of the external force gear 5.

[0073] The working principle of the shelf device in this embodiment is as follows:

[0074] Referring to Figures 1 - 2 , by applying a counterclockwise external force to the external force knob 52 and transmitting the applied external force to the external force gear 5, the external force knob 52 drives the two driving gears 4 on both sides to perform a clockwise same-direction movement in a gear meshing manner. At this time, the central axes of the two driving gears 4 pass through the fixed gear 11 and drive the transmission gear 12 to rotate through the transmission connecting plate 41. The transmission gear 12 performs a clockwise circumferential movement on the fixed gear 11 through gear meshing. When performing a clockwise circumferential movement, the support rod 2 drives the shelf 3 to move up and down to play a role in shelf adjustment; the fastener 623 functions to fix the fixed gear 11 on the rear cover 62.

[0075] Referring to Figure 2 shown, Figure 2 shows the transmission principle diagram of the transmission system of the shelf device, which can clearly express the transmission direction of the gears of the shelf device following the external force. As shown in the figure, an external force N is applied to the external force knob 52 to drive the external force gear 5 to rotate counterclockwise, and then drive the driving gear 4 to perform a same-direction clockwise rotation. Finally, it is transmitted to the transmission gear 12 with a radius r. Then, by using the planetary gear structure of the gear transmission mechanism and the tooth number ratio of 1:2 (the tooth number ratio of the transmission gear 12 to the fixed gear 11 is 1:2), it is realized that the support rod 2 only moves in the vertical direction, thereby achieving the principle of vertical movement adjustment of the shelf.

[0076] In the refrigerator of this embodiment, referring to Figures 15 - 25 , the refrigerator includes the above-mentioned shelf device.

[0077] Apply the shelf device in this embodiment to a refrigerator. The placement height of the shelf can be adjusted freely in terms of the overall height, or more adjustable height spaces can be achieved through staggered shelves. By using the control of the transmission system of the mechanical mechanism-fixed gear - transmission gear - transmission shaft and related connectors, the shelf 3 can move freely up and down within the module transmission system. When the shelf 3 moves, it is blocked by the front cover 61, which not only enables the shelf 3 to move freely up and down within the shelf device to meet the needs of various user scenarios, but also makes the internal structure of the refrigerator simple and bright.

[0078] In the refrigerator of this embodiment, refer to Figure 2 , the refrigerator includes a group of shelf devices. The group of shelf devices includes a first shelf device 101 and a second shelf device 102 arranged oppositely. The first shelf device 101 and the second shelf device 102 are respectively embedded on two oppositely arranged inner walls of the refrigerator; there are multiple groups of shelf devices, and the multiple groups of shelf devices are arranged at intervals along the height direction of the refrigerator.

[0079] Specifically, refer to Figures 15 - 17 , embed the shelf device on the inner liner layer of the refrigerator. The front cover 61 of the shelf device faces the inner cavity of the refrigerator, so that the external force knob 52 is located in the inner cavity of the refrigerator, enabling the user to complete the adjustment of the shelf height through direct manual adjustment. The rear cover 62 of the shelf device is fixed to the outer shell of the refrigerator through fasteners.

[0080] Specifically, refer to Figures 18 - 19 , any one of the shelf devices can be adjusted in height separately, so that the shelves 3 in the first shelf device 101 and the second shelf device 102 are placed in a staggered manner. Refer to Figures 20 - 25 , or the first shelf device 101 and the second shelf device 102 can be adjusted in height simultaneously to make the two opposite shelves flush with each other. The user can adjust the shelves according to actual needs to achieve more height adjustment methods and adjustable spaces.

[0081] Refer to Figures 20 - 25 , which respectively show the working positions when the shelf 3 is adjusted to the upper, middle, and lower parts. The shelf device in this embodiment can be customized according to the size of the stored items and the needs of the user, meeting the diverse usage needs of the user.

[0082] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0083] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and will not be elaborated here.

[0084] The serial numbers of the above embodiments of this application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0085] In the above embodiments of this application, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0086] The above are only the preferred embodiments of this application. It should be noted that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this application.

Claims

1. A shelf device, characterized in that: include: A transmission mechanism, the transmission mechanism comprising a fixed gear (11) and a transmission gear (12) meshing with an inner gear ring (111) of the fixed gear (11), the transmission gear (12) being rotatably arranged around its own axis, the transmission gear (12) being connected to a support rod (2) perpendicular to the transmission gear (12), the connection position of the support rod (2) coinciding with the pitch circle of the transmission gear (12); A shelf (3), the shelf (3) being connected to the support rod (2) to support the shelf (3); A driving mechanism is connected to the transmission gear (12) in a driving manner. When the driving mechanism drives the transmission gear (12) to rotate, the transmission gear (12) drives the support rod (2) to move linearly to control the lifting of the shelf (3).

2. The shelf device according to claim 1, characterized in that: The gear ratio between the transmission gear (12) and the fixed gear (11) is 1:

2.

3. The shelf device according to claim 1, characterized in that: The driving mechanism comprises: A driving gear (4), wherein the driving gear (4) is rotatably arranged, and the axis of the driving gear (4) is colinear with the axis of the fixed gear (11); A transmission connecting plate (41), one end of the transmission connecting plate (41) is connected to the axis of the driving gear (4), and the other end of the transmission connecting plate (41) is connected to the axis of the transmission gear (12); When the driving gear (4) rotates, the transmission connecting plate (41) drives the transmission gear (12) to rotate around the axis of the driving gear (4), so that the transmission gear (12) rotates around its own axis.

4. The shelf device according to claim 3, characterized in that: The driving mechanism comprises: An external force gear (5), the external force gear (5) and the driving gear (4) meshing with each other; An external force driving rod (51) is connected to the external force gear (5) so that the external force driving rod (51) is rotated by external force to drive the external force gear (5) to rotate.

5. The shelf device according to claim 4, characterized in that: The driving mechanism comprises an external force knob (52), the external force knob (52) is connected to the external force driving rod (51), and the external force knob (52) is provided with a gripping portion (521) corresponding to the shape of a finger.

6. The shelf device according to claim 3, characterized in that: A connecting plate (121) is fixedly connected to a side of the transmission gear (12) away from the driving gear (4), and the supporting rod (2) is mounted on the connecting plate (121) at a position corresponding to the pitch circle of the transmission gear (12).

7. The shelf device according to claim 4, characterized in that: The shelf device comprises an installation box body (6) formed by a front cover (61) and a rear cover (62) arranged opposite to each other, and the transmission mechanism and the driving mechanism are accommodated inside the installation box body (6); The front cover (61) is provided with a lifting slot (611) extending along the movement direction of the support rod (2) and a connecting slot (612) for the external force driving rod (51) to pass through, and the support rod (2) passes through the lifting slot (611) to be connected to the shelf (3).

8. The shelf device according to claim 7, characterized in that: A locking portion (511) protruding from the external force gear (5) is provided at one end of the external force driving rod (51) close to the rear cover (62), and a locking groove (621) is provided on the rear cover (62) corresponding to the locking portion (511). The external force driving rod (51) is movably arranged along the extension direction of the external force driving rod (51) so that the locking portion (511) is connected or disconnected with the locking groove (621).

9. The shelf device according to claim 7, characterized in that: A plurality of mounting holes (622) are provided on a side of the rear cover (62) close to the driving mechanism, a fixed spoke (112) is installed on a side of the fixed gear (11) close to the rear cover (62), and a fastener (623) passes through the fixed spoke (112) and is fixedly connected to the plurality of mounting holes (622) so as to fix the fixed gear (11) to the rear cover (62).

10. The shelf device according to claim 3, characterized in that: The transmission mechanism comprises at least two transmission gears (12), and the support rods (2) correspondingly comprise at least two, and the at least two transmission gears (12) are arranged at intervals along the horizontal direction, so that at least two support rods (2) jointly support the shelf (3).

11. A refrigerator, characterized in that: The refrigerator comprises the shelf device according to any one of claims 1 to 10.

12. The refrigerator according to claim 11, characterized in that: The refrigerator comprises a shelf device group, the shelf device group comprises a first shelf device (101) and a second shelf device (102) which are arranged opposite to each other, the first shelf device (101) and the second shelf device (102) are respectively embedded in two oppositely arranged inner walls of the refrigerator; The shelf device groups include a plurality of shelf device groups, and the plurality of shelf device groups are arranged at intervals along a height direction of the refrigerator.

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