Shelf assembly and refrigeration equipment

Abstract

The utility model provides a shelf assembly and refrigeration equipment, the shelf assembly comprises a shelf and an adjusting mechanism used for adjusting the position of the shelf in the first direction, and the adjusting mechanism comprises a sliding rail extending in the first direction and provided with a sliding groove; the connecting component comprises a connecting piece used for being connected with the shelf in a matched mode, a pulley matched with the sliding groove and an adapter connecting the pulley and the connecting piece, the connecting position of the adapter and the connecting piece is located on the side, close to the shelf, of the pulley, and the connecting position and the pulley are arranged in a spaced mode in the second direction. According to the shelf assembly provided by the invention, the joint of the connecting piece and the adapter piece is arranged on the front side of the pulley, so that the arm of force of rotation of the shelf is reduced, and the bearing capacity of the shelf is increased.

Description

Technical Field

[0001] This application relates to the technical field of refrigeration equipment, and particularly to a shelf assembly and a refrigeration equipment with the shelf assembly. Background Art

[0002] Currently, many refrigerators are provided with a shelf assembly whose shelf height is adjustable. The rear side of the shelf is connected to the slide rail through a connecting member, so that the force arm of the shelf is relatively long and the torque is relatively large. Then the load-bearing performance of the shelf is limited. To avoid damage to the shelf assembly, the load-bearing capacity of the shelf is small. Summary of the Invention

[0003] The purpose of this application is to provide a shelf assembly and a refrigeration equipment. The shelf assembly sets the connection part between the connecting member and the adapter near the shelf side of the pulley, reducing the force arm of the shelf and solving the problem of small load-bearing capacity of the shelf in the prior art.

[0004] To achieve one of the above-mentioned invention purposes, an embodiment of this application provides a shelf assembly, including a shelf and an adjusting mechanism for adjusting the position of the shelf in a first direction. The adjusting mechanism includes:

[0005] A slide rail extending in the first direction and provided with a chute;

[0006] A connecting member, including a connecting piece for cooperating with the shelf, a pulley cooperating with the chute, and an adapter connecting the pulley and the connecting piece. The connection part between the adapter and the connecting piece is located on the side of the pulley close to the shelf and is spaced from the pulley in a second direction.

[0007] As a further improvement of an embodiment of this application, the connecting piece is provided with a hanging groove, the adapter is provided with a fixing post, the hanging groove is hung on the fixing post, and in the second direction, the distance between the axis of the fixing post and the axis of the pulley is 10-60 mm.

[0008] As a further improvement of an embodiment of this application, the fixing post includes a first fixing post and a second fixing post arranged from top to bottom, the hanging groove includes a first hanging groove and a second hanging groove arranged from top to bottom, the first hanging groove opens downward, and the second hanging groove opens towards the slide rail.

[0009] As a further improvement of an embodiment of this application, a locking mechanism is further included. The locking mechanism includes a locking state that shields the side of the fixing post with the second hanging groove close to the slide rail and an unlocking state that does not shield the side of the fixing post with the second hanging groove close to the slide rail.

[0010] As a further improvement of an embodiment of the present application, the locking mechanism includes a central shaft connected to a connecting member, a locking member that rotates along the central shaft, and a first elastic member that deforms as the locking member rotates. When the first elastic member is not stressed, the locking mechanism is in a locked state.

[0011] As a further improvement of an embodiment of the present application, it further includes a first side decorative shell wrapped around the side of the connecting member. The first elastic member is a torsion spring. One end of the torsion spring is fixed relative to the first side decorative shell, and the other end is fixed to the locking member and rotates with the rotation of the locking member.

[0012] As a further improvement of an embodiment of the present application, the torsion spring includes a torsion spring body, a first end and a second end connected to both ends of the torsion spring body;

[0013] A first circular ring portion with a notch is convexly provided on one side of the locking member facing the first side decorative shell, and a fixing groove communicating with the inner circle of the first circular ring portion is also provided. The torsion spring body is arranged in the first circular ring portion. The first end extends out from the notch, and the second end is arranged in the fixing groove;

[0014] The first side decorative shell is provided with a second circular ring portion corresponding to the first circular ring portion. The second circular ring portion is sleeved outside the first circular ring portion and has a notch at the same position. The first end also extends out from the notch of the second circular ring portion.

[0015] As a further improvement of an embodiment of the present application, the locking member includes a first locking member provided with a locking hook and a second locking member provided with a dial. The second locking member drives the first locking member to rotate.

[0016] As a further improvement of an embodiment of the present application, the second locking member is buckled to the first locking member and drives the first locking member to rotate synchronously. The first circular ring portion and the fixing groove are arranged on the second locking member.

[0017] An embodiment of the present application further provides a refrigeration device, including a box body provided with a refrigeration compartment and a shelf assembly arranged in the refrigeration compartment. The shelf assembly is the shelf assembly as described above.

[0018] One or more technical solutions provided by the present application have at least the following technical effects or advantages:

[0019] In the shelf assembly provided by the present application, the connection part between the connecting member connected to the shelf board and the adapter connected to the pulley is arranged on the side of the pulley close to the shelf board. That is, the connection part between the connecting member and the adapter is used as the center of rotation when the shelf board bears weight and rotates. It is closer to the shelf board than the pulley, reducing the force arm of the shelf board rotation and increasing the weight-bearing capacity of the shelf board. Description of the Drawings

[0020] Figure 1It is a schematic structural diagram of the shelf assembly in the embodiment of the present application.

[0021] Figure 2 It is Figure 1 A schematic diagram of the cooperation of the adapter, the connecting piece and the locking mechanism of the middle shelf assembly.

[0022] Figure 3 It is Figure 2 An enlarged view of part A in

[0023] Figure 4 It is Figure 1 A schematic structural diagram of the first side decorative shell in

[0024] Figure 5 It is Figure 3 A schematic structural diagram of the other perspective of the locking mechanism in

[0025] Figure 6 It is Figure 1 A schematic structural diagram of removing the first side decorative shell and the second side decorative shell in

[0026] Figure 7 It is Figure 6 A schematic structural diagram of the damping member in

[0027] Figure 8 It is Figure 6 A schematic structural diagram of the synchronous pulley, the ratchet wheel and the synchronous rod in

[0028] Figure 9 It is Figure 6 An enlarged view of part B in

[0029] 1. Shelf;

[0030] 2. Slide rail; 21. Slide groove;

[0031] 31. Connecting piece; 311. First hanging groove; 312. Second hanging groove; 313. Through hole; 32. Pulley; 33. Adapter; 331. First fixing column; 332. Second fixing column; 333. Connecting hole;

[0032] 4. Locking mechanism; 41. Central shaft; 42. Locking piece; 421. First locking piece; 4211. Locking hook; 4212. Socket hole; 422. Second locking piece; 4221. First circular ring part; 4222. Fixed groove; 4223. Paddle; 4224. Buckling part; 43. Torsion spring; 431. Torsion spring body; 432. First end; 433. Second end;

[0033] 51. Rack; 52. Gear; 53. Damping member; 531. Damping wheel; 5311. Non-circular hole; 532. Damper; 5321. Non-cylindrical;

[0034] 61. Synchronous rod; 62. Synchronous pulley; 621. Second non-circular groove

[0035] 71. Ratchet wheel; 711. First non-circular groove; 712. Non-circular convex block; 72. Movable rod; 721. Convex ring; 722. Spring; 723. First limit block; 7231. First limit hole; 724. Circular sleeve; 725. Second limit block; 726. Wrench

[0036] 8. First side decorative shell; 81. Second circular ring part

[0037] 9. Second side decorative shell Detailed implementation mode

[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying 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

[0039] Spatial relative position terms used herein, such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are for the purpose of facilitating description to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The spatial relative position terms may be intended to include different orientations of the device in use or operation other than the orientation shown in the figures

[0040] For example, if the device in the figure is flipped, the unit described as being "below" or "beneath" other units or features will be located "above" other units or features. Therefore, the exemplary term "below" can encompass both the upper and lower orientations. The device can be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein can be interpreted accordingly

[0041] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations

[0042] Also, it should be understood that although terms such as first and second may be used herein to describe various elements or structures, the objects so described should not be limited by these terms. These terms are only used to distinguish these described objects from each other. For example, the first fixing post may be referred to as the second fixing post, and similarly the second fixing post may also be referred to as the first fixing post, which does not depart from the protection scope of the present application.

[0043] An embodiment of the present application provides a shelf assembly, which can be used in a refrigeration device. The refrigeration device provided with the shelf assembly includes a box body provided with a refrigeration compartment and a shelf assembly disposed in the refrigeration compartment. Accordingly, the present application also provides a refrigeration device provided with the aforementioned shelf assembly.

[0044] As Figure 1 , 2 As shown, the aforementioned shelf assembly includes a shelf 1 and an adjustment mechanism for adjusting the position of the shelf 1 in a first direction. The adjustment mechanism includes a slide rail 2 and a connecting member. The slide rail 2 extends in the first direction and is provided with a chute 21; the connecting member includes a connecting piece 31 for cooperating with the shelf 1, a pulley 32 cooperating with the chute 21, and a connecting piece 33 connecting the pulley 32 and the connecting piece 31. The connection part of the connecting piece 33 and the connecting piece 31 is located on the side of the pulley 32 close to the shelf 1 and is spaced from the pulley 32 in a second direction.

[0045] It should be noted that in this article, the shelf assembly is described in its normal use state, that is, the shelf 1 is generally horizontally arranged, the first direction in which the slide rail 2 extends is generally the vertical direction, so that the shelf 1 can be adjusted in height approximately along the vertical direction. Up and down are common orientation terms in the vertical direction, and in the drawings of the present application, the adjustment mechanism is located at the rear side of the shelf 1. Then, when the user faces the shelf assembly, the side close to the user is the front side, and the second direction is the front-rear direction perpendicular to the first direction.

[0046] As Figure 2 In, the connecting piece 33 is provided with a connection hole 333, and the pulley 32 is connected to the connecting piece 33 through the connection hole 333. Figure 1 In the reference numeral 32 refers to only a part of the pulley 32, and the rest is blocked by the connecting piece 33. In the shelf assembly provided by the present application, the connection part of the connecting piece 31 and the connecting piece 33 is arranged on the side of the pulley 32 close to the shelf 1, that is, the connection part of the connecting piece 31 and the connecting piece 33 is located in front of the pulley 32. After the shelf 1 is installed, the front end is prone to tilt downward. The connection part of the connecting piece 31 and the connecting piece 33 serves as the center of rotation when the shelf 1 bears weight, which is more forward relative to the pulley 32, reducing the moment arm of the rotation of the shelf 1 and increasing the weight-bearing capacity of the shelf 1.

[0047] In some embodiments, the connecting member 31 is provided with a hanging groove, and the adapter member 33 is provided with a fixing post. The hanging groove is hung on the fixing post. In the front-rear direction, the distance between the axis of the fixing post and the axis of the pulley 32 is 10-60 mm. The connecting member 31 and the adapter member 33 are connected through the hanging groove and the fixing post. The axis of the fixing post is the connection center of the connecting member 31 and the adapter member 33. Controlling the distance between the axis of the fixing post and the axis of the pulley 32 to be between 10-60 mm in the front-rear direction can not only reduce the force arm of the rotation of the shelf 1, thereby increasing the load-bearing capacity of the shelf 1, but also prevent the distance between the axis of the fixing post and the axis of the pulley 32 from occupying too much space in the front-rear direction of the shelf assembly, resulting in a reduction in the width of the shelf 1 in the front-rear direction.

[0048] In some embodiments, the distance between the axis of the fixing post and the axis of the pulley 32 can be 37.8 mm. Of course, an integer such as 37 mm or 38 mm can also be taken, or it can be set to 35 mm, 40 mm, etc. on this basis.

[0049] In some embodiments, the fixing post includes a first fixing post 331 and a second fixing post 332 arranged from top to bottom, and the hanging groove includes a first hanging groove 311 and a second hanging groove 312 arranged from top to bottom. The first hanging groove 311 opens downward, and the second hanging groove 312 opens toward the slide rail 2.

[0050] The first hanging groove 311 and the second hanging groove 312 on the connecting member 31 are not both open downward. Instead, the first hanging groove 311 opens downward, and the second hanging groove 312 opens toward the slide rail 2. In this way, when installing the shelf 1, only need to first hang the first hanging groove 311 on the first fixing post 331, and then rotate the shelf 1 to hang the second hanging groove 312 on the second fixing post 332, without the need to lift and then lower the entire shelf 1, and there is no restriction on the structure above the first fixing post 331 and the second fixing post 332. And when, as described below, the shelf assembly is height-adjusted through the gear 52 and the rack 51, and a damping member 53 is provided for the gear 52, the matching manner of the hanging groove and the fixing post in the present application will not be affected by the damping member 53 due to the need to lift and then lower the shelf 1, which will affect the installation speed of the worker.

[0051] In some embodiments, the shelf assembly provided in the present application further includes a locking mechanism 4. The locking mechanism 4 includes a locking state in which the second fixing post 332 is blocked on the side close to the slide rail 2 and an unlocking state in which the second fixing post 332 is not blocked on the side close to the slide rail 2. The locking mechanism 4 can block the side of the second fixing post 332 close to the slide rail 2, that is, the locking mechanism 4 can prevent the second hanging groove 312 from disengaging from the second fixing post 332 due to the shaking of the shelf 1 caused by external factors.

[0052] In some embodiments, the locking mechanism 4 includes a central shaft 41 connected to the connecting member 31, a locking member 42 that rotates about the central shaft 41, and a first elastic member that deforms as the locking member 42 rotates. When the first elastic member is not stressed, the locking mechanism 4 is in a locked state.

[0053] As Figure 3 shown in [reference], the central shaft 41 connected to the connecting member 31 is disposed close to the second hanging groove 312. The locking member 42 is sleeved on the central shaft 41 to rotate about the central shaft 41. When the locking member 42 rotates, it drives the first elastic member to deform. When the first elastic member is not stressed, the locking mechanism 4 is in a locked state. That is, at this time, the locking member 42 shields the side of the second fixing column 332 close to the slide rail 2. This state is when the shelf 1 is installed and in normal use. If the locking member 42 rotates so that the side of the second fixing column 332 close to the slide rail 2 is not shielded, at this time, the first elastic member is stressed and deformed, and the locking mechanism 4 is in an unlocked state. This state is when the shelf 1 is being installed or removed. The locking member 42 makes way for the second hanging groove 312 to be hooked on the second fixing column 332, or the locking member 42 makes way for the second hanging groove 312 to be disengaged from the second fixing column 332.

[0054] In some embodiments, the shelf assembly provided in the present application further includes a first side decorative shell 8 wrapped around the side of the connecting member 31. The first elastic member is a torsion spring 43. One end of the torsion spring 43 is fixed relative to the first side decorative shell 8, and the other end is fixed to the locking member 42 and rotates with the rotation of the locking member 42.

[0055] The first elastic member is a torsion spring 43. The torsion spring 43 can be sleeved on the central shaft 41. When the torsion spring 43 works, its two ends open or close when stressed, and when not stressed, its two ends retract or open under the action of the elastic restoring force. The first side decorative shell 8 is wrapped around the side of the connecting member 31 to wrap all the components connected to the connecting member 31 to ensure aesthetics. That is, the first side decorative shell 8 is relatively stationary relative to the connecting member 31. Fixing one end of the torsion spring 43 relative to the first side decorative shell 8 and the other end rotating with the rotation of the locking member 42 can cause the torsion spring 43 to be compressed or stretched when the locking member 42 rotates, thereby realizing the switching of the locking mechanism 4 between the locked state and the unlocked state.

[0056] The shelf assembly provided in the present application further includes a second side decorative shell 9 wrapped around the other side of the connecting member 31. A cavity is formed between the first side decorative shell 8 and the second side decorative shell to wrap the connecting member 31 and the components on both sides of the connecting member, ensuring the aesthetics of the shelf assembly.

[0057] Of course, the first elastic member can also be other structures with elastic force, such as elastic sheets, etc. One end of the first elastic member is not necessarily fixed relative to the first side decorative shell 8. One end of the first elastic member only needs to be stationary or fixed relative to the rotation of the locking member 42.

[0058] In some embodiments, such as Figure 3 , 4 In [embodiment reference], the torsion spring 43 includes a torsion spring body 431, a first end 432 and a second end 433 connected to both ends of the torsion spring body 431; the locking member 42 protrudes toward the first side decorative shell 8 to form a first circular ring portion 4221 with a notch, and a fixing groove 4222 communicating with the inner circle of the first circular ring portion 4221 is further provided. The torsion spring body 431 is disposed within the first circular ring portion 4221, the first end 432 extends out from the notch, and the second end 433 is disposed within the fixing groove 4222; the first side decorative shell 8 is provided with a second circular ring portion 81 corresponding to the first circular ring portion 4221. The second circular ring portion 81 is sleeved outside the first circular ring portion 4221 and has a notch at the same position, and the first end 432 also extends out from the notch of the second circular ring portion 81.

[0059] It should be noted here that Figure 4 in [embodiment reference], the second circular ring portion 81 is partially incomplete at the position close to the gear 52 to make way for the gear 52 in the following text, but this does not affect the function of the second circular ring portion 81. If the distance between the gear 52 and the second circular ring portion 81 is far enough, the second circular ring portion 81 only has a unique notch at the notch formed by the first circular ring portion 4221.

[0060] The first circular ring portion 4221 formed by the locking member 42 can be sleeved on the central shaft 41 and rotate about the central shaft 41 as the axis. The torsion spring body 431 of the torsion spring 43 is also sleeved on the central shaft 41, and the second circular ring portion 81 is sleeved on the first circular ring portion 4221. That is, the spring 722 body, the first circular ring portion 4221, and the second circular ring portion 81 are sequentially sleeved from the central shaft 41 outward. The first circular ring portion 4221 and the second circular ring portion 81 have notches at the same position, so that the first end 432 of the torsion spring 43 extends out from the notches of the first circular ring portion 4221 and the second circular ring portion 81, and the second end 433 of the torsion spring 43 is disposed within the fixing groove 4222 of the locking member 42.

[0061] When the locking mechanism 4 switches between the locked state and the unlocked state, the locking member 42 drives the torsion spring 43 to rotate within the second circular ring portion 81. Thus, since the first end 432 of the torsion spring 43 extends out from the notch of the second circular ring portion 81, it can only move slightly within the width range of the notch of the second circular ring portion 81. The second end 433 of the torsion spring 43 rotates with the rotation of the locking member 42, compressing or stretching the torsion spring body 431, so that the torsion spring body 431 is stressed. Of course, the width of the notch of the second circular ring portion 81 is sufficient for the first end 432 of the torsion spring 43 to extend out, and it can also be slightly larger than the first end 432 of the torsion spring 43. This is not limited here.

[0062] In some embodiments, the locking member 42 includes a first locking member 421 provided with a locking hook 4211 and a second locking member 422 provided with a paddle 4223 , and the second locking member 422 drives the first locking member 421 to rotate.

[0063] The locking hook 4211 is used to block the second fixing column 332 from being close to the slide rail 2. The user turns the paddle 4223 to rotate the second locking member 422. When installing the shelf 1, first hang the first hanging groove 311 on the first fixing column 331, and then rotate the shelf 1. Figure 3 After the locking hook 4211 hits the second fixing column 332, it is forced to rotate downward, so that the second hanging groove 312 can be hung on the second fixing column 332. When the shelf 1 needs to be removed, the paddle 4223 is moved as shown in FIG. Figure 3 The second locking member 422 drives the first locking member 421 to rotate, and the locking hook 4211 gives way, so that the second hanging groove 312 can be disengaged from the second fixing column 332, thereby removing the shelf 1.

[0064] In some embodiments, Figure 5 In the embodiment, the second locking member 422 is buckled with the first locking member 421 and drives the first locking member 421 to rotate synchronously, and the first annular portion 4221 and the fixing groove 4222 are provided on the second locking member 422. The first locking member 421 is provided with a sleeve hole 4212 sleeved on the central shaft 41, and the second locking member 422 is sleeved on the central shaft 41 through the first annular portion 4221. The edge of the second locking member 422 extends toward one side of the first locking member 421 to form a buckling portion 4224, the shape of which matches that of the first locking member 421, and the buckling portion 4224 is close to the side of the first locking member 421.

[0065] When installing the locking mechanism 4, first fix the central axis 41 to the connecting member 31, sleeve the first locking member 421 on the central axis 41, and then fix the torsion spring 43 with the second end 433 fixed to the second locking member 422 and sleeve the second locking member 422 on the central axis 41 together, and ensure that the first end 432 extends out from the first annular portion 4221. When installing the second locking member 422, align the buckle portion 4224 with the first locking member 421.

[0066] In some embodiments, the slide rail 2 is provided with a chute 21 extending in a first direction and a pulley 32 disposed in the chute 21. The adapter 33 is connected to the pulley 32. Since the description in this article is for the shelf assembly in the normal use state, the first direction is the vertical direction. The shelf assembly further includes an adjusting mechanism. The adjusting mechanism includes a rack 51 fixed to the slide rail 2 and parallel to the chute 21, a gear 52 rotatably connected to the connecting member 31, and a damping member 53 that provides a damping force for the gear 52. The gear 52 meshes with the rack 51 to adjust the height of the shelf 1. The damping member 53 provides a damping force when the shelf 1 moves downward, preventing the shelf 1 from rapidly descending under the action of gravity.

[0067] Since the installation method of the shelf 1 in this application is to hang the upper first hanging groove 311 on the first fixing column 331 and then rotate the shelf 1 to hang the second hanging groove 312 on the second fixing column 332. After the first hanging groove 311 is hung on the first fixing column 331, the gear 52 and the rack 51 are not yet meshed and only mesh with each other when the shelf 1 is rotated. At this time, there is no need to lift and then lower the shelf 1. Therefore, during the installation process of the shelf 1, the damping member 53 has no impact on the installation of the shelf 1 and does not affect the installation time of the worker for the shelf 1.

[0068] The damping member 53 includes a damping wheel 531 and a damper 532 that provides a damping force for the damping wheel 531. The damping wheel 531 is detachably connected to the damper 532 and the damping wheel 531 meshes with the gear 52; wherein, the pitch circle radius r of the damping wheel 531 1 and the number of teeth z 1 satisfy the following formula:

[0069]

[0070] wherein, k and b are constants in the damping and rotational speed relationship formula of the damper 532, g is the acceleration due to gravity, m is the preset load-bearing capacity of the shelf 1, r 2 is the pitch circle radius of the gear 52, z 2 is the number of teeth of the gear 52, and v is the preset descending speed of the shelf 1.

[0071] Since the rotational speed ω of the damping wheel 531 1 and the number of teeth z 1 and the rotational speed ω of the gear 52 2 and the number of teeth z 2 satisfy: ω 1 ×z 1 =ω 2 ×z 2 (Formula 1), then the descending speed v of the shelf 1 is the linear speed of the gear 52, then the rotational speed of the gear 52 r 2 is the pitch circle radius of the gear 52, then

[0072] The relationship between the damping T of the damper 532 and the rotational speed ω satisfies a linear function T = kω + b. The rotational speed ω of the damper 532 is equal to the rotational speed ω of the damping wheel 531. 1 The damping force F output by the damping wheel 531 is F = T / r 1 , where r 1 is the pitch circle radius of the damping wheel 531. Then the downward acceleration of the shelf 1 where m is the weight borne by the shelf 1, specifically the sum of the weight of the shelf 1 itself and the weight of the items placed above it. If it is desired to keep the downward speed of the shelf 1 constant, then the downward acceleration a of the shelf 1 is 0, so

[0073] Since the gear 52 meshes with the rack 51 and cannot be replaced, only the pitch circle radius r 1 and the number of teeth z 1 of the damping wheel 531 can be changed. And as can be seen from Equation 4, if the weight borne by the shelf 1 increases, then the pitch circle radius r 1 and / or the number of teeth z 1 of the damping wheel 531 need to be decreased.

[0074] In some embodiments, the connecting member 31 is provided with a through hole 313; as Figure 7 shown in, the damping wheel 531 is provided with a non-circular hole 5311, and the damper 532 is provided with a non-cylindrical portion 5321 that mates with the non-circular hole 5311. The damper 532 is fixed to the connecting member 31 and passes through the through hole 313, and the non-cylindrical portion 5321 passes through the non-circular hole 5311 to realize the connection between the damping wheel 531 and the damper 532. Thus, the damping wheel 531 can be detached from the non-cylindrical portion 5321 for replacement according to the weight borne by the shelf 1.

[0075] In some embodiments, the shelf assembly further includes a synchronization mechanism and a limiting mechanism. The synchronization mechanism includes a synchronization rod 61 and synchronization wheels 62 located at both ends of the synchronization rod 61. The synchronization wheels 62 mesh with the gear 52. The limiting mechanism includes a ratchet wheel 71 and a movable rod 72. The ratchet wheel 71 is coaxially arranged with the synchronization wheel 62. As Figure 6 , 8Among them, the gear 52, the synchronous pulley 62, and the damping pulley 531 are arranged outside the connecting member 31, that is, on the side away from the shelf 1, the ratchet wheel 71 is arranged inside the connecting member 31. The two ends of the synchronous rod 61 are non-circular. On the side of the ratchet wheel 71 close to the synchronous rod 61, first non-circular grooves 711 are arranged corresponding to the non-circular structures at both ends of the synchronous rod 61. On the side of the ratchet wheel 71 close to the synchronous pulley 62, a non-circular convex block 712 is arranged. On the side of the synchronous pulley 62 close to the ratchet wheel 71, a second non-circular groove 621 is arranged corresponding to the non-circular convex block 712. The non-circular structures at the ends of the synchronous rod 61 are inserted into the first non-circular grooves 711 of the ratchet wheel 71, and the non-circular convex block 712 passes through the connecting member 31 and is arranged in the second non-circular groove 621, so that the synchronous pulleys 62 at both ends of the synchronous rod 61 are respectively engaged with the gears 52 on both sides of the shelf 1, and when the shelf 1 moves up or down, the adjustment synchronism on both sides is better.

[0076] In some embodiments, the movable rod 72 includes a locking position that cooperates with the ratchet wheel 71 to limit the rotation of the ratchet wheel 71 when the shelf 1 moves downward, and a release position after being separated from the ratchet wheel 71. As Figure 6 , 9 shown in, the adjusting mechanism is arranged near the rear side of the shelf 1. The movable rod 72 can move in the front-rear direction and is provided with a convex ring 721; the limiting mechanism is also provided with a second elastic member and a first limiting block 723 connected to the connecting member 31. The first limiting block 723 is provided with a first limiting hole 7231 that matches the cross-section of the movable rod 72. The movable rod 72 passes through the first limiting hole 7231. The front end of the second elastic member abuts against the first limiting block 723, and the rear end abuts against the convex ring 721.

[0077] There are two limiting members, and the movable rod 72 is restricted to move only in the front-rear direction through the first limiting hole 7231. The second elastic member is preferably a spring 722, which is sleeved on the movable rod 72 and cooperates with the limiting member at the front end. After the movable rod 72 is forced to move forward, the spring 722 is compressed. After the force acting on the movable rod 72 is lost, the restoring force of the spring 722 causes the movable rod 72 to move backward and cooperate with the ratchet wheel 71 to lock the ratchet wheel 71, and further lock the relative movement of the gear 52 and the rack 51, thereby locking the position of the shelf 1.

[0078] When the movable rod 72 is in the locking position, if the ratchet wheel 71 rotates clockwise (corresponding to the shelf 1 moving upward) as shown in Figure 6 , the ratchet wheel 71 pushes the movable rod 72 forward. It should be noted that the movable rod 72 can move completely to the release position or only move partially in the direction of the release position to form an avoidance of the ratchet wheel 71. After the shelf 1 stops moving upward, the movable rod 72 moves back to the locking position under the action of the spring 722.

[0079] And if the ratchet wheel 71 has a tendency to move along Figure 6When rotating counterclockwise (corresponding to the downward movement of the shelf 1), the ratchet wheel 71 cannot rotate under the locking of the movable rod 72, so that the gear 52 and the rack 51 cannot move relative to each other, avoiding the downward movement of the shelf 1 under the weight of the items placed on it.

[0080] When the movable rod 72 is in the release position, the rotation of the ratchet wheel 71 is not restricted and can rotate in both directions, that is, the shelf 1 can move up or down.

[0081] Of course, the locking and releasing of the movable rod 72 on the ratchet wheel 71 are not limited to the foregoing manner. The movable rod 72 can also be arranged to move vertically close to and away from the ratchet wheel 71 to reach the locking position and the release position, or can be arranged to be horizontally arranged and move backward to the locking position and forward to the locking position; or other setting methods that can realize the locking and releasing of the movable rod 72 on the ratchet wheel 71 will not be described in detail here.

[0082] Furthermore, the outer contour of the ratchet wheel 71 is an arc surface. A circular sleeve 724 is arranged at one end of the movable rod 72 close to the ratchet wheel 71, and the circular sleeve 724 is made of an elastic material. When the movable rod 72 moves forward and then moves backward to the locking position under the restoring force of the spring 722, the contact area between the arc-shaped ratchet wheel 71 and the movable rod 72 is small. Arranging the circular sleeve 724 at one end of the movable rod 72 close to the ratchet wheel 71 further reduces the contact area between the ratchet wheel 71 and the movable rod 72, changing the contact area between the ratchet wheel 71 and the movable rod 72 from the original surface contact to point contact, greatly reducing the noise generated by the impact between the movable rod 72 and the ratchet wheel 71; and the circular sleeve 724 made of elastic material acts as a buffer, further reducing the noise generated by the impact.

[0083] In some embodiments, such as Figure 6 In, the limiting mechanism further includes a second limiting block 725 arranged at one end of the connecting piece 31 away from the ratchet wheel 71. The second limiting block 725 is provided with a second limiting hole, and the movable rod 72 passes through the second limiting hole; a wrench 726 is arranged at one end of the movable rod 72 away from the ratchet wheel 71. When the movable rod 72 is in the locking position, the rear end of the wrench 726 abuts against the front end of the second limiting block 725. By arranging the wrench 726 at one end of the movable rod 72 away from the ratchet wheel 71, the user can grasp the wrench 726 at the front end to move the movable rod 72 from the locking position to the release position, facilitating the adjustment of the shelf 1.

[0084] In some embodiments, the diameter of the gear 52 is greater than the diameter of the synchronizing pulley 62. The fact that the diameter of the gear 52 is greater than the diameter of the synchronizing pulley 62 means that when the gear 52 rotates one full turn, the synchronizing pulley 62 rotates more than one full turn. Then, the number of rotations of the ratchet wheel 71 coaxially arranged with the synchronizing pulley 62 is also more than one full turn. That is, when the shelf 1 is adjusted to the same height, the larger the diameter of the gear 52, the larger the angle of rotation of the ratchet wheel 71. The more teeth that can be locked by the angle of rotation of the ratchet wheel 71 within this adjustment height, the greater the adjustment accuracy.

[0085] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0086] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of this application, and they are not used to limit the protection scope of this application. Any equivalent embodiments or changes made without departing from the technical spirit of this application should be included within the protection scope of this application.

Claims

1. A shelf assembly, characterized in that: It comprises a shelf (1) and an adjustment mechanism for adjusting the position of the shelf (1) along a first direction, the adjustment mechanism comprising: A slide rail (2) extending along a first direction and provided with a slide groove (21); The connecting member comprises a connecting piece (31) for connecting with the shelf (1), a pulley (32) for connecting with the slide groove (21), and a transition piece (33) for connecting the pulley (32) and the connecting piece (31); the connection between the transition piece (33) and the connecting piece (31) is located on a side of the pulley (32) close to the shelf (1), and is spaced apart from the pulley (32) in the second direction.

2. The shelf assembly according to claim 1, characterized in that: The connecting member (31) is provided with a hanging groove, and the adapter (33) is provided with a fixing column, the hanging groove is hung on the fixing column, and in the second direction, the distance between the axis of the fixing column and the axis of the pulley (32) is 10 to 60 mm.

3. The shelf assembly according to claim 2, characterized in that: The fixing column comprises a first fixing column (331) and a second fixing column (332) arranged from top to bottom, and the hanging groove comprises a first hanging groove (311) and a second hanging groove (312) arranged from top to bottom, the first hanging groove (311) opens downward, and the second hanging groove (312) opens toward the slide rail (2).

4. The shelf assembly according to claim 3, characterized in that: It also includes a locking mechanism, wherein the locking mechanism (4) includes a locking state in which the fixed column with the second hanging groove (312) is blocked on the side close to the slide rail (2), and an unlocking state in which the fixed column with the second hanging groove (312) is not blocked on the side close to the slide rail (2).

5. The shelf assembly according to claim 4, characterized in that: The locking mechanism comprises a central axis (41) connected to the connecting member (31), a locking member (42) rotating along the central axis (41), and a first elastic member deformed as the locking member (42) rotates; when the first elastic member is not subjected to force, the locking mechanism is in a locked state.

6. The shelf assembly according to claim 5, characterized in that: It also includes a first side decorative shell (8) wrapped around the side of the connecting member (31), the first elastic member is a torsion spring (43), one end of the torsion spring (43) is fixed relative to the first side decorative shell (8), and the other end is fixed to the locking member (42) and rotates with the rotation of the locking member (42).

7. The shelf assembly according to claim 6, characterized in that: The torsion spring (43) comprises a torsion spring body (431), a first end (432) and a second end (433) connected to both ends of the torsion spring body (431); The locking member (42) is provided with a first annular portion (4221) having a notch protruding toward one side of the first side decorative shell (8), and is also provided with a fixing groove (4222) connected to the inner circle of the first annular portion (4221); the torsion spring body (431) is arranged in the first annular portion (4221), the first end (432) protrudes from the notch, and the second end (433) is arranged in the fixing groove (4222); The first side decorative shell (8) is provided with a second circular portion (81) corresponding to the first circular portion (4221); the second circular portion (81) is sleeved outside the first circular portion (4221) and is provided with a notch at the same position; the first end (432) also extends out from the notch of the second circular portion (81).

8. The shelf assembly according to claim 7, characterized in that: The locking member (42) comprises a first locking member (421) provided with a locking hook (4211) and a second locking member (422) provided with a paddle (4223), wherein the second locking member (422) drives the first locking member (421) to rotate.

9. The shelf assembly according to claim 8, characterized in that: The second locking member (422) is buckled with the first locking member (421) and drives the first locking member (421) to rotate synchronously, and the first annular portion (4221) and the fixing groove (4222) are arranged on the second locking member (422).

10. A refrigeration device, characterized in that: The invention comprises a box body provided with a refrigeration compartment and a shelf assembly arranged in the refrigeration compartment, wherein the shelf assembly is the shelf assembly according to any one of claims 1 to 9.

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