Foot module and refrigerator

Abstract

The invention relates to the field of refrigerators, in particular to a bottom foot module and a refrigerator. The footing module comprises a footing module, and the footing module comprises a seat body, a front wheel structure and a rear wheel structure; the front wheel structure comprises a front wheel assembly, a front wheel limiting assembly, a supporting bottom foot and a bottom foot adjusting assembly. The front wheel assembly comprises a front wheel and a steering support; the front wheel limiting assembly comprises a fixing piece and a limiting piece, the fixing piece is arranged on the steering support, the limiting piece is detachably connected with the fixing piece, and in the limiting state, the limiting piece is in limiting fit with the seat body and is in limiting fit with at least one of the steering support and the fixing piece, so that the steering freedom degree of the steering support is limited; the output end of the bottom foot adjusting assembly is connected with the supporting bottom foot. The rear wheel structure comprises a rear wheel assembly and a rear wheel adjusting assembly, and the output end of the rear wheel adjusting assembly is connected with the rear wheel assembly. The defects that in the prior art, when the gap between the refrigerator and the kitchen cabinet is adjusted, too large pressure is easily applied to the kitchen cabinet, the kitchen cabinet is deformed or damaged, and the position of the refrigerator cannot be effectively and accurately adjusted are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of refrigerators, and in particular to a foot module and a refrigerator. Background Art

[0002] Built-in refrigerators are designed to be integrated with kitchen cabinets. They are usually installed in the cabinets to achieve a neater, more unified and more beautiful effect. Since the refrigerator is in the cabinet, it is particularly important to keep the gap between the refrigerator and the cabinet within a suitable range in order to achieve a better aesthetic effect.

[0003] In the prior art, in order to solve the above problems, the industry generally pre-installs a corresponding mechanism on the refrigerator to adjust the gap between the refrigerator and the kitchen cabinet. However, most built-in refrigerators have wooden cabinets that lack sufficient support. When the existing adjustment mechanism adjusts the gap between the refrigerator and the kitchen cabinet, it exerts a large pressure on the kitchen cabinet, which easily causes the kitchen cabinet to deform or break. Summary of the invention

[0004] The present invention provides a foot module and a refrigerator, which are used to solve the defects that the existing adjustment device easily exerts excessive pressure on the kitchen cabinet when adjusting the gap between the refrigerator and the kitchen cabinet, causing the kitchen cabinet to be deformed or damaged, and cannot effectively and accurately adjust the position of the refrigerator.

[0005] In one aspect, the present invention provides a foot module, comprising: a foot module, the foot module is configured to be arranged at the bottom of a refrigerator body, the foot module comprises: a seat body, a front wheel structure and a rear wheel structure; The front wheel structure comprises a front wheel assembly, a front wheel limiting assembly, a supporting foot and a foot adjusting assembly.

[0006] The front wheel assembly comprises a front wheel and a steering support, the front wheel is rotatably connected to the steering support, and the steering support is rotatably connected to the seat body.

[0007] The front wheel limiting assembly includes a fixing part and a limiting part, wherein the fixing part is arranged on the steering support, and the limiting part is detachably connected to the fixing part. In the limiting state, the limiting part cooperates with the seat body and cooperates with at least one of the steering support and the fixing part to limit the steering freedom of the steering support.

[0008] The foot adjustment component is arranged on the seat body, and the output end of the foot adjustment component is connected to the supporting foot to adjust the extension length of the supporting foot relative to the seat body.

[0009] The rear wheel structure comprises a rear wheel assembly and a rear wheel adjustment assembly.

[0010] The rear wheel adjustment assembly is arranged on the seat body, and the output end of the rear wheel adjustment assembly is connected to the rear wheel assembly to adjust the extension length of the rear wheel assembly relative to the seat body.

[0011] According to the foot module provided by the present invention, in the limiting state, the limiting member is limitedly matched with the seat body, and is limitedly matched with the steering support and the fixing member to limit the steering freedom of the steering support.

[0012] According to the base module provided by the present invention, the limiting member includes a first limiting portion, a second limiting portion and a third limiting portion which are connected in sequence, and the first limiting portion is detachably connected to the fixing member; the first limiting portion is provided with a first card slot, the seat body is provided with a second card slot, and a side of the steering support facing the limiting member is provided with an abutment surface; in the limiting state, the first limiting portion is snap-fitted with the fixing member, the second limiting portion is snap-fitted with the second card slot, and the third limiting portion is abutted with the abutment surface.

[0013] According to the base module provided by the present invention, the fixing piece is inserted into the first slot; in the limited state, the top of the first slot contacts the fixing piece, and / or the bottom of the second limiting portion contacts the bottom of the second slot.

[0014] According to the base module provided by the present invention, the height of the first slot is greater than or equal to the height of the second slot, and the height of the second slot is greater than or equal to the height of the third limiting portion.

[0015] According to the foot module provided by the present invention, the inner wall of the third limiting portion is limitedly matched with the inner wall of the seat body.

[0016] According to the base module provided by the present invention, a fourth limiting portion and a fifth limiting portion are provided on the base body, the fourth limiting portion is used to limit the maximum steering angle of the front wheel assembly along the first direction, and the fifth limiting portion is used to limit the maximum steering angle of the front wheel assembly along the second direction.

[0017] According to the base module provided by the present invention, the front wheel assembly further comprises a rotating shaft, the front wheel is rotatably mounted on the rotating shaft, and the fixing member is integrally provided with the rotating shaft.

[0018] The foot module provided by the present invention comprises two foot modules, and the two foot modules are configured to be symmetrically arranged on both sides of the bottom of the refrigerator body.

[0019] According to the foot module provided by the present invention, the foot adjustment component includes a first worm gear, a first worm, a first screw and a first threaded seat, the first worm gear and the first worm are both rotatably connected to the seat body, the first threaded seat is fixedly connected to the seat body, the first worm gear cooperates with the first worm, one end of the first screw is connected to the supporting foot, the first worm gear is sleeved on the first screw and can drive the first screw to rotate, and the first screw and the first worm gear are vertically slidably matched, and the first screw is threadedly connected to the first threaded seat; the rear wheel adjustment component includes a second worm gear, a second worm, a second screw and a second threaded seat, the second worm gear and the second worm are both rotatably connected to the seat body, the second threaded seat is fixedly connected to the seat body, the second worm gear cooperates with the second worm, one end of the second screw is connected to the rear wheel assembly, the second worm gear is sleeved on the second screw and can drive the second screw to rotate, and the second screw and the second worm gear are vertically slidably matched, and the second screw is threadedly connected to the second threaded seat.

[0020] According to the base module provided by the present invention, the base adjustment assembly also includes a first adjustment member, the first adjustment member is connected to the first worm gear, the first adjustment member is provided with a first joint portion, the first joint portion is used to connect with the adjustment component to drive the first adjustment member to rotate; the rear wheel adjustment assembly also includes a second adjustment member, the second adjustment member is connected to the second worm gear, the second adjustment member is provided with a second joint portion, the second joint portion is used to connect with the adjustment component to drive the second adjustment member to rotate.

[0021] According to the foot module provided by the present invention, the first joint portion and the second joint portion are both located on the same side of the base body.

[0022] Another aspect of the present invention provides a refrigerator, comprising: a box body and a foot module as described in any one of the above items, wherein the foot module is arranged at the bottom of the box body.

[0023] The foot module provided by the present invention is applied to a refrigerator, and can easily adjust the gap between the refrigerator and the kitchen cabinet, and prevent excessive pressure on the kitchen cabinet when the refrigerator is centered. After the adjustment is completed, it can ensure that the refrigerator remains stable in the kitchen cabinet without shifting. When in use, the foot module is arranged at the bottom of the refrigerator body. In the initial state, the front wheel limiting assembly is in a limiting state. The limiting member can limit the steering support of the front wheel assembly by cooperating with the seat body and cooperating with at least one of the steering support and the fixing member, so that it cannot turn left or right, so that the refrigerator can move stably along the depth direction of the kitchen cabinet. After the refrigerator is pushed into the kitchen cabinet, the limiting member can be removed to release the limiting cooperation with the seat body, and release the limiting cooperation with the steering support and / or the fixing member, so that the steering support can restore the freedom of turning left or right. At this time, the direction of the front wheel assembly can be adjusted. After the direction is adjusted, the left and right gaps between the refrigerator and the kitchen cabinet can be easily adjusted, and the refrigerator can be prevented from applying excessive pressure to the kitchen cabinet, resulting in damage to the kitchen cabinet wall. After the left and right positions of the refrigerator are adjusted, the foot adjustment assembly and the rear wheel adjustment assembly can be used to adjust the height of the front and rear of the refrigerator respectively, so as to adjust the gap between the top of the refrigerator and the kitchen cabinet. After the adjustment is completed, the front of the refrigerator is supported by the supporting feet, so that the refrigerator can maintain a stable position in the kitchen cabinet without displacement.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 Schematic diagram of a foot module provided by an embodiment of the present invention.

[0027] Figure 2 This is one of the schematic diagrams of the foot module in the foot module provided in the embodiment of the present invention.

[0028] Figure 3 This is the second schematic diagram of the foot module in the foot module provided in the embodiment of the present invention.

[0029] Figure 4 This is the third schematic diagram of the foot module in the foot module provided in the embodiment of the present invention.

[0030] Figure 5 It is a schematic diagram of a front wheel assembly in a base module provided by an embodiment of the present invention being in a limited position state.

[0031] Figure 6 It is a schematic diagram of the front wheel assembly in the base module provided by an embodiment of the present invention when the limiting state is released.

[0032] Figure 7 It is a schematic diagram of a limiting member in a foot module provided in an embodiment of the present invention.

[0033] Figure 8 It is a schematic diagram of the front wheel assembly in the base module provided by an embodiment of the present invention after adjusting the steering.

[0034] Fig. 9 It is a schematic diagram of a foot adjustment component and a rear wheel adjustment component in a foot module provided in an embodiment of the present invention.

[0035] Fig.10 It is a schematic diagram of a foot adjustment component in a foot module provided in an embodiment of the present invention.

[0036] Fig.11 It is a schematic diagram of a rear wheel adjustment assembly in a base module provided in an embodiment of the present invention.

[0037] Fig.12 It is a schematic diagram of a rear wheel assembly in a base module provided in an embodiment of the present invention.

[0038] Reference numerals: 100, seat body; 110, base; 120, upper cover; 130, second slot; 140, fourth limiting portion; 150, fifth limiting portion.

[0039] 200, front wheel structure; 210, front wheel assembly; 211, front wheel; 212, steering support; 213, abutment surface; 214, rotating shaft; 220, front wheel limiting assembly; 221, fixing member; 222, limiting member; 2221, first limiting portion; 2222, second limiting portion; 2223, third limiting portion; 2224, first slot; 230, supporting foot; 240, foot adjustment assembly; 241, first worm gear; 242, first worm; 243, first screw; 244, first threaded seat; 245, first protective shell; 246, first adjustment member; 247, first joint.

[0040] 300, rear wheel structure; 310, rear wheel assembly; 311, rear wheel; 312, rear wheel support; 3121, first rear wheel support; 3122, second rear wheel support; 320, rear wheel adjustment assembly; 321, second worm gear; 322, second worm; 323, second screw; 324, second threaded seat; 325, second protective shell; 326, second adjustment member; 327, second joint. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0044] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0046] Combine the following Figures 1 to 12 The invention describes a foot module and a refrigerator.

[0047] See also Figures 1 to 6 As shown, the foot module provided by the embodiment of the present invention includes: a foot module, which is configured to be arranged at the bottom of the refrigerator body, and the foot module includes a base body 100, a front wheel structure 200 and a rear wheel structure 300.

[0048] The front wheel structure 200 includes a front wheel assembly 210 , a front wheel limiting assembly 220 , a supporting foot 230 and a foot adjusting assembly 240 .

[0049] The front wheel assembly 210 includes a front wheel 211 and a steering support 212 , the front wheel 211 is rotatably connected to the steering support 212 , and the steering support 212 is rotatably connected to the seat body 100 .

[0050] The front wheel limiting assembly 220 includes a fixing member 221 and a limiting member 222. The fixing member 221 is arranged on the steering support 212. The limiting member 222 is detachably connected to the fixing member 221. In the limited state, the limiting member 222 cooperates with the seat body 100 and cooperates with at least one of the steering support 212 and the fixing member 221 to limit the steering freedom of the steering support 212.

[0051] The foot adjustment assembly 240 is disposed on the base body 100 , and an output end of the foot adjustment assembly 240 is connected to the supporting foot 230 to adjust the extension length of the supporting foot 230 relative to the base body 100 .

[0052] The rear wheel structure 300 includes a rear wheel assembly 310 and a rear wheel adjustment assembly 320 . The rear wheel adjustment assembly 320 is disposed on the seat body 100 . The output end of the rear wheel adjustment assembly 320 is connected to the rear wheel assembly 310 to adjust the extension length of the rear wheel assembly 310 relative to the seat body 100 .

[0053] The foot module provided by the present invention is applied to a refrigerator, and can easily adjust the gap between the refrigerator and the kitchen cabinet, and prevent the refrigerator from causing excessive pressure on the kitchen cabinet when adjusting the centering, and after the adjustment is completed, it can ensure that the refrigerator remains stable in the kitchen cabinet without displacement. The defects of the existing adjustment device that when adjusting the gap between the refrigerator and the kitchen cabinet, it is easy to apply excessive pressure to the wooden kitchen cabinet, causing the kitchen cabinet to deform or damage, and cannot effectively and accurately adjust the position of the refrigerator are solved.

[0054] When in use, the two foot modules are symmetrically arranged on both sides of the bottom of the refrigerator body, see Figure 5 As shown, in the initial state, the front wheel limiting assembly 220 is in a limiting state, and the limiting member 222 can limit the steering support 212 of the front wheel assembly 210 by limiting the seat body 100 and limiting the steering support 212 and the fixing member 221, so that it cannot turn left or right, so that the refrigerator can move stably along the depth direction of the kitchen cabinet, see Figure 6 As shown, after the refrigerator is pushed into the kitchen cabinet, the limiting member 222 can be removed to release the limiting cooperation with the seat body 100, and release the limiting cooperation with the steering support 212 and / or the fixing member 221, so that the steering support 212 can restore the freedom of left and right steering. At this time, the direction of the front wheel assembly 210 can be adjusted (see Figure 8 As shown in the figure) (if the refrigerator is heavy, the front of the refrigerator can be raised by using the supporting feet 230 to make the front wheel assembly 210 suspended, and then the direction of the front wheel assembly 210 can be adjusted). After the direction is adjusted, the left and right gaps between the refrigerator and the kitchen cabinet can be easily adjusted, and the refrigerator can be prevented from exerting too much pressure on the kitchen cabinet, causing damage to the kitchen cabinet wall. After the left and right positions of the refrigerator are adjusted, the heights of the front and rear of the refrigerator can be adjusted respectively by using the foot adjustment assembly 240 and the rear wheel adjustment assembly 320, thereby adjusting the gap between the top of the refrigerator and the kitchen cabinet. After the adjustment, the front of the refrigerator is supported by the supporting feet 230, so that the refrigerator can maintain a stable position in the kitchen cabinet without displacement.

[0055] Specifically, the foot module provided by the present invention includes two foot modules that are symmetrically arranged on the left and right sides, and the two foot modules are used to support the left and right sides of the bottom of the refrigerator body respectively, and the roller arrangement of the two foot modules can facilitate the movement of the refrigerator. Of course, in some embodiments, the number of foot modules can also be single or more than two, which is not limited.

[0056] The foot module includes a base 100, a front wheel structure 200 and a rear wheel structure 300. The base 100 is used to install and fix the front wheel structure 200 and the rear wheel structure 300. When in use, the base 100 is connected to the bottom of the refrigerator. Of the two foot modules, the front wheel structure 200 is used to support the front of the refrigerator (the side where the refrigerator door is located), and the rear wheel structure 300 is used to support the rear of the refrigerator.

[0057] The front wheel structure 200 includes a front wheel assembly 210, a front wheel limiting assembly 220, a supporting foot 230 and a foot adjustment assembly 240. The front wheel assembly 210 is used to support the front of the refrigerator when it is moved and use the front wheel 211 to reduce the movement resistance. The front wheel limiting assembly 220 is used to limit the front wheel assembly 210 to limit the left and right steering freedom of the front wheel assembly 210. The supporting foot 230 is used to support the front of the refrigerator when it is fixed. The foot adjustment assembly 240 is used to adjust the extension length of the supporting foot 230 relative to the base 100, thereby adjusting the height of the front of the refrigerator.

[0058] The front wheel assembly 210 includes a front wheel 211 and a steering support 212. The front wheel 211 is rotatably connected to the steering support 212 so that the front wheel 211 can roll relative to the steering support 212 to facilitate the movement of the refrigerator. The steering support 212 is rotatably connected to the base body 100 so that the steering support 212 can drive the front wheel 211 to rotate left and right to facilitate the adjustment of the left and right movement direction of the refrigerator.

[0059] The front wheel limiting assembly 220 includes a fixing member 221 and a limiting member 222. The fixing member 221 is arranged on the steering support 212, so that the steering support 212 can drive the fixing member 221 to move synchronously when it rotates left or right. The limiting member 222 and the fixing member 221 are detachably connected (such as snap-on, plug-in, threaded connection, etc.). When it is necessary to release the limiting effect on the front wheel assembly 210, the limiting member 222 is removed from the fixing member 221. In the limiting state, the limiting member 222 is limitedly matched with the seat body 100, so that the limiting member 222 cannot rotate relative to the seat body 100. At the same time, the limiting member 222 is limitedly matched with at least one of the steering support 212 and the fixing member 221 to limit the steering freedom of the steering support 212.

[0060] It should be noted that the position-limiting member 222 is in position-limiting cooperation with at least one of the steering support 212 and the fixing member 221, which means that the position-limiting member 222 can be in position-limiting cooperation with the steering support 212 alone, or in position-limiting cooperation with the fixing member 221 alone, or in position-limiting cooperation with both the steering support 212 and the fixing member 221. Since the position-limiting member 222 is in position-limiting cooperation with the seat body 100, it cannot rotate relative to the seat body 100. When the position-limiting member 222 is in position-limiting cooperation with the steering support 212 and / or the fixing member 221, the steering support 212 cannot turn left or right relative to the seat body 100, thereby limiting the steering freedom of the steering support 212.

[0061] The support foot 230 is vertically arranged on the base 100 and can move vertically relative to the base 100. The output end of the foot adjustment assembly 240 is connected to the support foot 230 to drive the support foot 230 to move in a direction away from or close to the base 100, thereby adjusting the front of the refrigerator to rise or fall. For example, when the foot adjustment assembly 240 drives the support foot 230 to move in a direction away from the base 100, it can drive the front of the refrigerator to rise, reducing the gap between the top of the refrigerator and the kitchen cabinet; correspondingly, when the foot adjustment assembly 240 drives the support foot 230 to move in a direction close to the base 100, it can drive the front of the refrigerator to fall, increasing the gap between the top of the refrigerator and the kitchen cabinet.

[0062] The foot adjustment assembly 240 can be implemented in a variety of ways known in the prior art, such as rotary adjustment, hydraulic adjustment or electric adjustment. Among them, the rotary adjustment drives the support foot 230 to extend or retract relative to the base 100 through a threaded mechanism by rotating the adjustment knob or nut, thereby adjusting the height of the front of the refrigerator. The hydraulic adjustment uses a hydraulic system to adjust the support foot 230 to extend or retract relative to the base 100, and by controlling the pressure of the hydraulic device, the front of the refrigerator can be accurately raised and lowered. The electric adjustment uses an electric drive system, which drives the screw or guide rail system through a motor to accurately control the support foot 230 to extend or retract relative to the base 100, thereby adjusting the height of the front of the refrigerator.

[0063] Of course, the foot adjustment assembly 240 may also adopt other forms known in the prior art, and this is not limited.

[0064] The rear wheel structure 300 includes a rear wheel assembly 310 and a rear wheel adjustment assembly 320. The rear wheel assembly 310 is used to support the rear of the refrigerator and use the rear wheel 311 to reduce the movement resistance. The rear wheel assembly 310 includes a rear wheel 311 and a rear wheel support 312. The rear wheel 311 is rotatably connected to the rear wheel support 312 so that the rear wheel 311 can roll relative to the rear wheel support 312 to facilitate the movement of the refrigerator. The rear wheel support 312 is fixedly connected to the base 100 so that the rear wheel 311 can always keep rolling along the front and rear direction of the refrigerator. In the rear wheel assembly 310, the number of rear wheels 311 can be single or multiple, and this is not limited.

[0065] See also Fig.12As shown, as an example, in this embodiment, the rear wheel assembly 310 includes a first rear wheel support 3121, a second rear wheel support 3122 and a plurality of rear wheels 311 arranged in parallel and at intervals, the plurality of rear wheels 311 are all rotatably connected to the first rear wheel support 3121, the bottoms of all the rear wheels are coplanar, the second rear wheel support 3122 is rotatably connected to the first rear wheel support 3121, and the rotation axes of the second rear wheel support 3122 and the first rear wheel support 3121 are located between the plurality of rear wheels 311 arranged at intervals, and the second rear wheel support 3122 is connected to the seat body 100.

[0066] Through the above arrangement, the rear wheel assembly 310 can make the bottoms of the multiple rear wheels 311 that are parallel to each other and spaced apart effectively contact the ground, thereby effectively dispersing the pressure on the ground, preventing the ground from being over-pressurized to produce indentations or damage, and reducing the processing accuracy requirements and assembly accuracy requirements for the rear wheel assembly 310.

[0067] When working, the rear wheel assembly 310 is connected to the base 100, and the weight of the refrigerator is transferred to the first rear wheel support 3121 and then to each rear wheel 311 through the second rear wheel support 3122. Since the second rear wheel support 3122 is rotatably connected to the first rear wheel support 3121, and the rotation axis of the second rear wheel support 3122 and the first rear wheel support 3121 is located between the plurality of rear wheels 311 arranged at intervals, when the refrigerator applies pressure to the rear wheel assembly 310, the first rear wheel support 3121 can be slightly rotated relative to the second rear wheel support 3122, driving each rear wheel 311 to rotate relative to the second rear wheel support 3122 following the first rear wheel support 3121, and the rear wheels 311 located on both sides of the rotation connection point between the second rear wheel support 3122 and the first rear wheel support 3121 can be effectively in contact with the ground, thereby effectively dispersing the pressure on the ground. When the refrigerator is moved, the first rear wheel support 3121 can also slightly rotate relative to the second rear wheel support 3122, so that each rear wheel 311 can always be close to the ground and disperse the pressure on the ground.

[0068] In addition, since there may be processing errors in the various components of the rear wheel assembly 310 and there may be assembly errors when the rear wheel assembly 310 is assembled with the refrigerator, when the refrigerator applies pressure, a slight rotation of the first rear wheel support 3121 relative to the second rear wheel support 3122 can automatically compensate for these errors, thereby reducing the processing accuracy requirements and assembly accuracy requirements for the rear wheel assembly 310.

[0069] Similarly, the rear wheel adjustment assembly 320 can also be implemented in a variety of ways known in the prior art, such as rotary adjustment, hydraulic adjustment or electric adjustment, which is similar to the foot adjustment assembly 240 and will not be described in detail. The only difference between the two is that the foot adjustment assembly 240 is used to drive the support foot 230 to move in a direction away from or close to the seat body 100, while the rear wheel adjustment assembly 320 is used to drive the rear wheel support 312 to move in a direction away from or close to the seat body 100.

[0070] It can be seen that the base module provided by the present invention, the base adjustment components 240 in the two base modules can independently adjust the height of the left and right sides of the front of the refrigerator, and the rear wheel adjustment components 320 in the two base modules can independently adjust the height of the left and right sides of the rear of the refrigerator, thereby improving the flexibility of the height adjustment of the refrigerator and being able to adapt to different kitchen cabinet heights and floors of different flatness.

[0071] See also Figures 2 to 4 As shown, the seat body 100 includes a base 110 and an upper cover 120 , which are snap-fitted together, and an installation space for installing and fixing the front wheel structure 200 and the rear wheel structure 300 is formed between the base 110 and the upper cover 120 .

[0072] See also Figure 5 As shown, according to some embodiments of the present invention, in the limited state, the limiter 222 is limitedly matched with the seat body 100 and is limitedly matched with the steering support 212 and the fixing member 221 to limit the steering freedom of the steering support 212 .

[0073] In the limited state, by setting the limit member 222 and the seat body 100 as a limited fit, and setting the limit member 222, the steering support 212 and the fixing member 221 as a limited fit, the stability of the steering support 212 in the limited state can be improved, and excessive force can be prevented at a single limited fit position, thereby extending the service life of the component.

[0074] Specifically, see Figure 5 As shown, in the limited state, one side of the limiter 222 is limitedly matched with the side wall of the steering support 212, the middle part of the limiter 222 is limitedly matched with the seat body 100, and the other side of the limiter 222 is limitedly matched with the fixing member 221. Under the effect of the two-position limit, the limiter 222 can effectively fix the position of the steering support 212 and limit its steering freedom. Through the design of the two-position limit, the force applied to the limiter 222 can be evenly dispersed, avoiding a single position of the limit from being subjected to excessive pressure, resulting in damage or failure.

[0075] See also Figures 5 to 7As shown, according to some embodiments of the present invention, the limiting member 222 includes a first limiting portion 2221, a second limiting portion 2222 and a third limiting portion 2223 which are connected in sequence, and the first limiting portion 2221 is detachably connected to the fixing member 221; the first limiting portion 2221 is provided with a first card slot 2224, the seat body 100 is provided with a second card slot 130, and a contact surface 213 is provided on the side of the steering support 212 facing the limiting member 222; in the limited state, the first limiting portion 2221 is snap-fitted with the fixing member 221, the second limiting portion 2222 is snap-fitted with the second card slot 130, and the third limiting portion 2223 is abutted with the abutment surface 213.

[0076] By setting the limiting member 222 to the above-mentioned structural form including the first limiting portion 2221, the second limiting portion 2222 and the third limiting portion 2223 connected in sequence, and correspondingly arranging matching limiting structures on the first limiting portion 2221, the seat body 100 and the steering support 212, the limiting structure of the front wheel assembly 210 can be simple, the limiting stability is strong, and it has the advantages of easy configuration of the limit and release of the limit.

[0077] Specifically, the limiting member 222 is connected in sequence by a first limiting portion 2221, a second limiting portion 2222 and a third limiting portion 2223, and is simple in design and easy to manufacture (for example, it can be formed by bending a block of metal). The first limiting portion 2221 is engaged with the fixing member 221, the second limiting portion 2222 is engaged with the second slot 130, and the third limiting portion 2223 cooperates with the abutting surface 213 of the steering support 212, effectively ensuring that the steering support 212 is stably fixed in the limited state to prevent rotation or displacement. Through the multi-point engagement and abutment design, the force can be dispersed, excessive pressure on a single position can be prevented, and the stability of the limit can be enhanced.

[0078] As an example, in this embodiment, the first limiting portion 2221 and the second limiting portion 2222 are vertically connected to each other, the second limiting portion 2222 and the third limiting portion 2223 are vertically connected to each other, and the first limiting portion 2221 and the third limiting portion 2223 are parallel to each other, so that the limiting member 222 is an inverted U-shape as a whole. Of course, in some embodiments, the first limiting portion 2221 and the second limiting portion 2222, the second limiting portion 2222 and the third limiting portion 2223 can also be connected at other angles, as long as they can meet the limiting requirements of the front wheel assembly 210, and this is not limited.

[0079] See also Figures 5 to 7 As shown, according to some embodiments of the present invention, the fixing member 221 is inserted into the first slot 2224 ; in the limited state, the top of the first slot 2224 contacts the fixing member 221 , and / or the bottom of the second limiting portion 2222 contacts the bottom of the second slot 130 .

[0080] By inserting the fixing member 221 into the first slot 2224 in the limited state, and making the top of the first slot 2224 contact with the fixing member 221, and / or the bottom of the second limiting portion 2222 contact with the bottom of the second slot 130, the difficulty of disassembling and assembling the limiting member 222 can be reduced, and the stability of the limiting member 222 in the limited state can be improved.

[0081] Specifically, in the limited state, the top of the first slot 2224 contacts the fixing member 221, and / or the bottom of the second limiting portion 2222 contacts the bottom of the second slot 130. The fixing member 221 and / or the seat body 100 can be used to support the limiting member 222, thereby reducing the loosening or displacement of the limiting member 222 due to external force or vibration and enhancing the limiting and fixing ability of the limiting member 222.

[0082] It should be noted that, in the fixed state, the top of the first slot 2224 can be in contact with the fixing member 221, or the bottom of the second limiting portion 2222 can be in contact with the bottom of the second slot 130, or the top of the first slot 2224 can be in contact with the fixing member 221, and the bottom of the second limiting portion 2222 can be in contact with the bottom of the second slot 130.

[0083] See also Figures 5 to 7 As shown, according to some embodiments of the present invention, the height of the first slot 2224 is greater than or equal to the height of the second slot 130 , and the height of the second slot 130 is greater than or equal to the height of the third limiting portion 2223 .

[0084] By setting the height of the first slot 2224 to be greater than or equal to the height of the second slot 130, and setting the height of the second slot 130 to be greater than or equal to the height of the third limiting portion 2223, it is possible to facilitate disassembly and assembly of the limiting member 222, thereby reducing the difficulty of operation when limiting or releasing the front wheel assembly 210.

[0085] It should be noted that the heights of the first slot 2224 , the second slot 130 , and the third limiting portion 2223 are all vertical heights.

[0086] Specifically, when limiting the front wheel assembly 210, one end of the fixing member 221 can be first passed through the first slot 2224 on the first limiting portion 2221, and the fixing member 221 is located in the middle and lower position of the first slot 2224, and then the third limiting portion 2223 is passed through the second slot 130 on the seat body 100, and then the limiting member 222 is released to make it fall under the action of gravity. At this time, the outer wall of the third limiting portion 2223 can abut against the side wall of the steering support 212 to form a limiting fit, and the two side walls of the second limiting portion 2222 can respectively contact the two side walls of the second slot 130 to form a limiting fit, and the bottom of the second limiting portion 2222 can overlap the bottom of the second slot 130 to fix the position of the limiting member 222. At the same time, the two side walls of the first slot 2224 on the first limiting portion 2221 contact the fixing member 221 to form a limiting fit, thereby completing the limiting fixation of the front wheel assembly 210. When releasing the limit of the front wheel assembly 210 , the limit member 222 is first lifted vertically through the first limit portion 2221 , so that the third limit portion 2223 is aligned with the second slot 130 , and then the limit member 222 is taken outward in a direction away from the seat body 100 .

[0087] See also Figures 5 to 7 As shown, according to some embodiments of the present invention, in the limiting state, the inner wall of the third limiting portion 2223 is limitedly matched with the inner wall of the seat body 100.

[0088] By setting the inner wall of the third limiting portion 2223 and the inner wall of the seat body 100 to be in a limiting fit in the limiting state, the limiting and fixing effect of the limiting member 222 can be further improved.

[0089] Specifically, in this embodiment, the inner wall of the third limiting portion 2223 is provided with an outwardly convex arc surface, and the inner wall of the seat body 100 is provided with an inwardly concave arc surface. In the limited state, the two arc surfaces cooperate with each other to further limit the limiting member 222 and the seat body 100, thereby ensuring their limiting and fixing effect.

[0090] See also Figure 6 and Figure 8 As shown, according to some embodiments of the present invention, a fourth limiting portion 140 and a fifth limiting portion 150 are provided on the seat body 100, the fourth limiting portion 140 is used to limit the maximum steering angle of the front wheel assembly 210 along the first direction, and the fifth limiting portion 150 is used to limit the maximum steering angle of the front wheel assembly 210 along the second direction.

[0091] It should be noted that the first direction and the second direction respectively refer to two rotation directions of the front wheel assembly 210. For example, the first direction can be understood as the direction in which the front wheel assembly 210 rotates counterclockwise, and the second direction can be understood as the direction in which the front wheel assembly 210 rotates clockwise.

[0092] By providing the fourth limiting portion 140 and the fifth limiting portion 150 on the seat body 100, the fourth limiting portion 140 and the fifth limiting portion 150 can be used to limit the maximum steering angle of the front wheel assembly 210, so that when the front wheel assembly 210 is in a non-limited state, its steering angle is constrained by the fourth limiting portion 140 and the fifth limiting portion 150, thereby preventing the steering angle of the front wheel assembly 210 from deviating from the set range, so as to more effectively adjust the gap between the refrigerator and the kitchen cabinet.

[0093] As an example, the fourth limiting part 140 in this embodiment can limit the steering angle of the front wheel assembly 210 to a horizontal position (i.e., the width direction of the refrigerator) through the fixing member 221, and the fifth limiting part 150 can limit the steering angle of the front wheel assembly 210 to a vertical position (i.e., the depth direction of the refrigerator) through the following rotating shaft 214. When the front wheel assembly 210 is released from the limit, it cannot continue to turn toward the fourth limiting part 140 under the restraining effect of the fourth limiting part 140, and it cannot continue to turn toward the fifth limiting part 150 under the restraining effect of the fifth limiting part 150.

[0094] See also Figure 5 and Figure 6 As shown, according to some embodiments of the present invention, the front wheel assembly 210 further includes a rotating shaft 214 , the front wheel 211 is rotatably sleeved on the rotating shaft 214 , and the fixing member 221 is integrally provided with the rotating shaft 214 .

[0095] By arranging the fixing member 221 and the rotating shaft 214 in one piece, the structural design of the front wheel assembly 210 and the front wheel limiting assembly 220 can be simplified, and the number of components and the difficulty of assembly can be reduced.

[0096] Specifically, one end of the rotating shaft 214 is located in the steering support 212, and the front wheel 211 is configured to be rotatably connected with the steering support 212, and the other end of the rotating shaft 214 extends out of the steering support 212 as a fixing member 221. The extension length of the fixing member 221 can be set according to actual needs, and it only needs to meet the fixing requirements of the limiting member 222 (first limiting portion 2221).

[0097] See also Figures 9 to 11As shown, according to some embodiments of the present invention, the foot adjustment assembly 240 includes a first worm gear 241, a first worm 242, a first screw 243 and a first threaded seat 244. The first worm gear 241 and the first worm 242 are both rotatably connected to the seat body 100, the first threaded seat 244 is fixedly connected to the seat body 100, the first worm gear 241 cooperates with the first worm 242, one end of the first screw 243 is connected to the supporting foot 230, the first worm gear is sleeved on the first screw 243 and can drive the first screw 243 to rotate, and the first screw 243 and the first worm gear are vertically slidably matched, and the first screw 243 and the first threaded seat 2 44 threaded connection; the rear wheel adjustment assembly 320 includes a second worm gear 321, a second worm 322, a second screw 323 and a second threaded seat 324, the second worm gear 321 and the second worm 322 are both rotatably connected to the seat body 100, the second threaded seat 324 is fixedly connected to the seat body 100, the second worm gear 321 cooperates with the second worm 322, one end of the second screw 323 is connected to the rear wheel assembly 310, the second worm gear 321 is sleeved on the second screw 323 and can drive the second screw 323 to rotate, and the second screw 323 and the second worm gear are vertically slidably matched, and the second screw 323 is threadedly connected to the second threaded seat 324.

[0098] By configuring the foot adjustment assembly 240 and the rear wheel adjustment assembly 320 to be in the form of a worm gear structure, it is possible to save effort when adjusting the height of the refrigerator, and to achieve stepless adjustment, thereby improving the adjustment accuracy.

[0099] Specifically, the worm gear transmission has a high reduction ratio, which can effectively amplify the applied force, thereby reducing the operator's force requirements and achieving easy adjustment. In addition, the worm gear system can achieve stepless adjustment, and the adjustment process is smooth and continuous. The user can accurately adjust the extension length of the support foot 230 and the rear wheel 311 relative to the seat body 100 as needed, avoiding the limitation of fixed gears and improving the flexibility and accuracy of adjustment. In addition, the worm gear also has a self-locking function, which can prevent the position from slipping back or changing due to external forces during the adjustment process, thereby increasing the stability of the system. At the same time, the worm gear design is wear-resistant and has strong load-bearing capacity, which can effectively disperse stress and extend the service life of the components.

[0100] As an example, in this embodiment, the foot adjustment assembly 240 further includes a first protective shell 245, the first worm wheel 241 and the first worm 242 are both located in the first protective shell 245, the first protective shell 245 is fixedly disposed in the seat body 100, and the first threaded seat 244 is fixedly disposed at the top of the first protective shell 245; the rear wheel adjustment assembly 320 further includes a second protective shell 325, the second worm wheel 321 and the second worm 322 are both located in the second protective shell 325, the second protective shell 325 is fixedly disposed in the seat body 100, and the second threaded seat 324 is fixedly disposed at the top of the second protective shell 325. The first protective shell 245 and the second protective shell 325 can provide protection for the worm gear structure and prevent foreign matter from entering the joint between the two.

[0101] See also Fig.10 As shown, when the foot adjustment assembly 240 is adjusted, the first worm 242 is rotated to drive the first worm wheel 241 to rotate. Under the constraint of the first threaded seat 244, the first screw 243 can drive the support foot 230 to move vertically to achieve the height adjustment of the front part of the refrigerator. Before the support foot 230 contacts the ground, the support foot 230 can move in a direction away from the base 100. After the support foot 230 contacts the ground, the support foot 230 cannot move further downward. Under the reaction force of the support foot 230, the front part of the refrigerator can be driven to move upward. See Fig.11 As shown, when the rear wheel adjustment assembly 320 is adjusted, the second worm 322 is rotated to drive the second worm wheel 321 to rotate. Under the constraint of the second threaded seat 324, the second screw 323 can drive the rear wheel assembly 310 to move vertically to achieve height adjustment of the rear part of the refrigerator.

[0102] See also Figures 9 to 11 As shown, according to some embodiments of the present invention, the base adjustment assembly 240 also includes a first adjustment member 246, which is connected to the first worm gear 242, and a first coupling portion 247 is provided on the first adjustment member 246, and the first coupling portion 247 is used to connect with the adjustment component to drive the first adjustment member 246 to rotate; the rear wheel adjustment assembly 320 also includes a second adjustment member 326, which is connected to the second worm gear 322, and a second coupling portion 327 is provided on the second adjustment member 326, and the second coupling portion 327 is used to connect with the adjustment component to drive the second adjustment member 326 to rotate.

[0103] By providing the first adjusting member 246 and the second adjusting member 326 , it is possible to facilitate the adjustment of the foot adjusting assembly 240 and the rear wheel adjusting assembly 320 , thereby simplifying the operation.

[0104] Specifically, during adjustment, the adjusting component can be connected to the first coupling portion 247 of the first adjusting component 246, the first adjusting component 246 can be rotated to drive the first worm 242 to rotate. Similarly, the adjusting component can be connected to the second coupling portion 327 of the second adjusting component 326, the second adjusting component 326 can be rotated to drive the second worm 322 to rotate.

[0105] As an example, the first engaging portion 247 and the second engaging portion 327 are both hexagonal engaging portions, which can be operated in cooperation with corresponding tools, namely the adjustment components mentioned above (such as hexagonal wrenches).

[0106] See also Fig. 9 As shown, according to some embodiments of the present invention, the first engaging portion 247 and the second engaging portion 327 are both located on the same side of the seat body 100 .

[0107] By arranging the first joint portion 247 and the second joint portion 327 on the same side of the base 100, the user only needs to make adjustments at the same position on one side of the base 100 without frequent movement, thereby improving the convenience of adjusting the height of the refrigerator.

[0108] Specifically, one side of the seat body 100 is provided with a clearance hole for the first adjustment member 246 and the second adjustment member 326 to pass through. The first adjustment member 246 and the second adjustment member 326 are inserted into the seat body 100 through the corresponding clearance holes, and the first coupling portion 247 and the second coupling portion 327 are located on the outside of the seat body 100 for easy operation.

[0109] As an example, in this embodiment, the first engaging portion 247 and the second engaging portion 327 are both located on the outside of the base 100, which can further enhance the convenience of adjusting the height of the refrigerator.

[0110] The refrigerator provided by the present invention is described below, and the refrigerator described below and the foot module described above can be referred to each other.

[0111] A refrigerator provided in an embodiment of the present invention comprises: a box body; and a foot module as described in any one of the above embodiments, wherein the foot module is arranged at the bottom of the box body.

[0112] The refrigerator provided by the present invention adopts the foot module described in any of the above embodiments, so it is also possible to easily adjust the gap between the refrigerator and the kitchen cabinet, and prevent the refrigerator from causing excessive pressure on the kitchen cabinet when adjusting the centering, and after the adjustment is completed, it is possible to ensure that the refrigerator remains stable in the kitchen cabinet without displacement. The defects of the existing adjustment device that when adjusting the gap between the refrigerator and the kitchen cabinet, it is easy to apply excessive pressure to the wooden kitchen cabinet, causing the kitchen cabinet to deform or damage, and it is impossible to effectively and accurately adjust the position of the refrigerator.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A footing module, characterized in that: include: The foot module is configured to be arranged at the bottom of the refrigerator body, and the foot module includes: seat body; A front wheel structure, comprising a front wheel assembly, a front wheel limiting assembly, a supporting foot and a foot adjusting assembly; The front wheel assembly comprises a front wheel and a steering support, wherein the front wheel is rotatably connected to the steering support, and the steering support is rotatably connected to the seat body; The front wheel limiting assembly comprises a fixing member and a limiting member, wherein the fixing member is arranged on the steering support, and the limiting member is detachably connected to the fixing member. In a limiting state, the limiting member is limitedly matched with the seat body and is limitedly matched with at least one of the steering support and the fixing member to limit the steering freedom of the steering support; The foot adjustment assembly is disposed on the seat body, and the output end of the foot adjustment assembly is connected to the supporting foot to adjust the extension length of the supporting foot relative to the seat body; A rear wheel structure, comprising a rear wheel assembly and a rear wheel adjustment assembly; The rear wheel adjustment assembly is arranged on the seat body, and the output end of the rear wheel adjustment assembly is connected to the rear wheel assembly to adjust the extension length of the rear wheel assembly relative to the seat body.

2. The footing module according to claim 1, characterized in that: In the limited state, the limit member is in limited cooperation with the seat body, and is also in limited cooperation with the steering support and the fixing member, so as to limit the steering freedom of the steering support.

3. The footing module according to claim 2, characterized in that: The limiting member comprises a first limiting portion, a second limiting portion and a third limiting portion which are connected in sequence, and the first limiting portion is detachably connected to the fixing member; The first limiting part is provided with a first slot, the seat body is provided with a second slot, and the steering support is provided with an abutment surface on a side facing the limiting member; In the limiting state, the first limiting portion is engaged with the fixing member, the second limiting portion is engaged with the second slot, and the third limiting portion is engaged with the abutting surface.

4. The footing module according to claim 3, characterized in that: The fixing member is inserted into the first slot; In the limited state, the top of the first clamping slot contacts the fixing member, and / or the bottom of the second limiting portion contacts the bottom of the second clamping slot.

5. The footing module according to claim 4, characterized in that: The height of the first card slot is greater than or equal to the height of the second card slot, and the height of the second card slot is greater than or equal to the height of the third limiting portion.

6. The footing module according to claim 3, characterized in that: In the limited state, the inner wall of the third limited portion is limitedly matched with the inner wall of the seat body.

7. The footing module according to claim 1, characterized in that: The seat body is provided with a fourth limiting portion and a fifth limiting portion, the fourth limiting portion is used to limit the maximum steering angle of the front wheel assembly along the first direction, and the fifth limiting portion is used to limit the maximum steering angle of the front wheel assembly along the second direction.

8. The footing module according to claim 1, characterized in that: The front wheel assembly also includes a rotating shaft, the front wheel is rotatably sleeved on the rotating shaft, and the fixing member is integrally arranged with the rotating shaft.

9. The footing module according to claim 1, characterized in that: It comprises two foot modules, and the two foot modules are configured to be symmetrically arranged on both sides of the bottom of the refrigerator body.

10. The footing module according to any one of claims 1 to 9, characterized in that: The foot adjustment assembly includes a first worm wheel, a first worm, a first screw and a first threaded seat, the first worm wheel and the first worm are both rotatably connected to the seat body, the first threaded seat is fixedly connected to the seat body, the first worm wheel cooperates with the first worm, one end of the first screw is connected to the supporting foot, the first worm wheel is sleeved on the first screw and can drive the first screw to rotate, and the first screw and the first worm wheel are vertically slidably matched, and the first screw is threadedly connected to the first threaded seat; The rear wheel adjustment assembly includes a second worm gear, a second worm, a second screw and a second threaded seat. The second worm gear and the second worm are both rotatably connected to the seat body. The second threaded seat is fixedly connected to the seat body. The second worm gear cooperates with the second worm. One end of the second screw is connected to the rear wheel assembly. The second worm gear is sleeved on the second screw and can drive the second screw to rotate. The second screw and the second worm gear cooperate in vertical sliding manner. The second screw is threadedly connected to the second threaded seat.

11. The footing module according to claim 10, characterized in that: The foot adjustment assembly further includes a first adjustment member, the first adjustment member is connected to the first worm, the first adjustment member is provided with a first engaging portion, the first engaging portion is used to connect with the adjustment component to drive the first adjustment member to rotate; The rear wheel adjustment assembly also includes a second adjustment member, which is connected to the second worm gear. The second adjustment member is provided with a second engaging portion, which is used to connect with the adjustment component to drive the second adjustment member to rotate.

12. The footing module according to claim 11, characterized in that: The first engaging portion and the second engaging portion are both located on the same side of the seat body.

13. A refrigerator, characterized in that: include: Box; The foot module according to any one of claims 1 to 12, wherein the foot module is arranged at the bottom of the box.

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