Refrigerator door body flatness adjusting structure and refrigerator

Abstract

The invention discloses a refrigerator door body flatness adjusting structure and a refrigerator, the refrigerator door body flatness adjusting structure comprises a refrigerator door body provided with a door end cover, at least one adjusting device is arranged in the door end cover, and each adjusting device comprises a power assembly, a propelling assembly and an adjusting assembly which are installed in the door end cover; a propelling assembly is connected between the power assembly and the adjusting assembly in a transmission mode. One end of the power assembly extends out of the door end cover and is provided with a knob piece; the adjusting assembly extends out of the door end cover along the coaxial end and abuts against a corresponding refrigerator body. One end of the adjusting assembly extending out of the door end cover and the knob piece are positioned on the same plane; the power assembly drives the adjusting assembly to do telescopic motion towards the refrigerator body through the propelling assembly. Therefore, the distance between the refrigerator door body and the refrigerator body is adjusted, the flatness of the refrigerator door body and other refrigerator door bodies in the front-back direction is adjusted, operation is easy, the adjusting efficiency is high, and the occupied space of the adjusting device is small.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, and in particular to a refrigerator door flatness adjustment structure and a refrigerator. Background Art

[0002] In refrigerators currently on the market, the refrigerator door is fixed to the refrigerator body only by hinges on both sides. The hinge shaft on the hinge provides the axis of rotation of the door, and the suction of the door relative to the body is controlled by the door seal on the door.

[0003] During the manufacturing process of refrigerators, due to the accumulation of tolerances of various parts, certain assembly errors during the assembly process, and deformation and twisting of the door body after transportation, there may be a large deviation in the distance between some doors and the front surface of the cabinet, causing the plane where the refrigerator door is located to be inconsistent and tilted relative to the front and back of the cabinet. This is especially true for multi-door refrigerators, such as double-door refrigerators. After the two doors are assembled, it is easy for the planes of the two doors to be uneven front and back, especially on the opposite side of the refrigerator door hinges.

[0004] In the prior art, some adjustments are generally made through the door hinges to improve the unevenness of the door body, but this adjustment method is relatively cumbersome. At the same time, disassembling and assembling the door body requires relatively professional knowledge so as not to affect the function of the refrigerator. It is very inconvenient for users and reduces the user experience. Summary of the Invention

[0005] The present invention provides a refrigerator door flatness adjustment structure and a refrigerator, which are used to solve the problems in the prior art of cumbersome adjustment methods for adjusting the unevenness of the refrigerator door and low user experience.

[0006] The technical solution of the present invention is a refrigerator door flatness adjustment structure, comprising a refrigerator door provided with a door end cover, wherein at least one adjustment device is provided in the door end cover, and the adjustment device comprises a power assembly, a propulsion assembly, and an adjustment assembly installed in the door end cover;

[0007] A propulsion assembly is transmission-connected between the power assembly and the adjustment assembly;

[0008] One end of the power assembly extends out of the door end cover and is provided with a knob;

[0009] One end of the adjusting assembly along the coaxial direction extends out of the door end cover and abuts against the corresponding refrigerator body; and the end of the adjusting assembly extending out of the door end cover is in the same plane as the knob member;

[0010] The power assembly drives the adjustment assembly to perform telescopic movement toward the refrigerator body through the propulsion assembly.

[0011] Furthermore, the propulsion assembly includes a threaded portion and a propulsion wheel;

[0012] The threaded portion is mounted on the power assembly, the threaded portion is engaged with the driving wheel, and the driving wheel is mounted on the adjusting assembly.

[0013] Furthermore, the adjustment assembly includes a base, a support column and an adjustment rod;

[0014] The door end cover is provided with a base on the inner side wall facing the knob member, one end of the base extends axially corresponding to the driving wheel to form a support column, the driving wheel is sleeved on the support column, and the end of the support column is connected to the inner side wall of the door end cover facing the knob member;

[0015] The other end of the base extends coaxially to form an adjusting rod, and the end of the adjusting rod extends out of the door end cover and abuts against the corresponding refrigerator body.

[0016] Furthermore, a limiting member is provided on the inner side wall of the base corresponding to the adjusting rod, and a guide slot is provided through the limiting member along the axial direction;

[0017] The adjusting rod can be matched and extended into the guide slot, and the adjusting rod and the guide slot form a sliding pair through clearance fit.

[0018] Furthermore, at least one inner side wall of the guide groove is axially recessed inward to form a receiving groove, and a plurality of rolling elements are matched and installed between the bottom wall of the receiving groove and the corresponding adjusting rod, and the rolling elements are in rolling contact with the bottom wall of the receiving groove and the surface of the adjusting rod.

[0019] Furthermore, the adjustment assembly further includes a first outer sleeve, which is arranged on the inner side wall of the door end cover close to the knob member, and a first elastic body is matched and installed in the first outer sleeve;

[0020] The end of the support column matches and extends into the first outer sleeve and is sleeved with a first elastic body.

[0021] Furthermore, the power assembly further includes a second outer sleeve, an outer rotating shaft and an inner rotating shaft;

[0022] The second outer sleeve is arranged on the inner side wall of the door end cover away from the knob member, and a bottom wall of the second outer sleeve away from the knob member is provided with a slot;

[0023] The end of the outer shaft extends into and is sleeved with the second outer sleeve, and the outer wall of the outer shaft is provided with the threaded portion engaged with the driving wheel;

[0024] The inner rotating shaft axially passes through the outer rotating shaft and is connected to the outer rotating shaft; the end of the inner rotating shaft is engaged with the slot, and the starting end of the inner rotating shaft extends out of the door end cover and is connected to a knob.

[0025] Furthermore, a first annular groove is formed in the inner portion of the outer rotating shaft extending into the second outer sleeve and corresponding to the inner rotating shaft along the circumferential direction;

[0026] A flange is provided circumferentially in the middle of the outer side wall of the inner rotating shaft extending into the second outer sleeve; a second elastic body is embedded in the inner rotating shaft between the flange and a side of the first annular groove away from the clamping groove.

[0027] Furthermore, a plurality of locking grooves are provided on the outer side wall of the door end cover facing the knob member in a circumferential direction, and all the locking grooves are distributed around the starting end of the inner rotating shaft;

[0028] The knob member is provided with at least one limiting through hole axially corresponding to the locking groove; a locking column is slidably arranged in the limiting through hole, and the locking column can be selectively inserted into the corresponding locking groove to achieve locking.

[0029] The present invention also provides a refrigerator, comprising the above-mentioned refrigerator door flatness adjustment structure.

[0030] Compared with the prior art, the present invention has at least the following beneficial effects:

[0031] The present invention drives the propulsion component to rotate counterclockwise or clockwise through the power component, and then the propulsion component drives the adjustment component to extend or retract in a straight line toward the refrigerator body (equivalent to moving forward and backward), thereby adjusting the distance between the refrigerator door body and the refrigerator body, thereby adjusting the flatness of the refrigerator door body and other refrigerator doors in the front and rear directions. It is not only simple to operate and has high adjustment efficiency, but also the adjustment device occupies a small space; it can also eliminate market complaints and other problems caused by the unevenness of the refrigerator door body, thereby improving the product image and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this invention belongs. The terms used in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the accompanying drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of the present invention and the accompanying drawings are used to distinguish different objects, not to describe a specific order.

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A top view of a refrigerator proposed by the present invention;

[0035] Figure 2 for Figure 1 An enlarged schematic diagram of the reference numeral A in FIG;

[0036] Figure 3 A schematic diagram of the adjusting rod of the adjusting device proposed by the present invention being retracted inward;

[0037] Figure 4 A schematic diagram of the adjusting rod of the adjusting device proposed by the present invention extending outward;

[0038] Figure 5 for Figure 4 Cross-sectional view in the AA direction;

[0039] Figure 6 for Figure 4 Cross-sectional view in the BB direction;

[0040] Figure 7 for Figure 4 A cross-sectional view in the CC direction;

[0041] Figure 8 for Figure 4 Another cross-sectional view in the CC direction;

[0042] Figure 9 This is a partially exploded schematic diagram of the knob and door end cover proposed in the present invention;

[0043] Figure 10 This is a cross-sectional view of a refrigerator proposed by the present invention.

[0044] Reference numerals:

[0045] 1. Refrigerator door;

[0046] 2. Door end cover; 201. Locking groove;

[0047] 3. Adjustment device;

[0048] 31. Power assembly; 311. Knob; 312. Second outer sleeve; 3121. Slot; 313. Outer shaft; 3131. First annular groove; 314. Inner shaft; 3141. Flange; 315. Second elastic body; 316. Limiting hole; 3161. Opening; 3162. Limiting groove; 317. Locking column; 3171. Limiting block; 3172. Friction rib.

[0049] 32. Propulsion assembly; 321. Threaded portion; 322. Propelling wheel; 323. Second annular groove;

[0050] 33. Adjustment assembly; 331. Base; 332. Support column; 3321. Limiting portion; 3322. Nut; 333. Adjustment rod; 334. Limiting member; 335. Guide groove; 336. First outer sleeve; 337. First elastic body; 338. Accommodating groove; 339. Rolling member;

[0051] 4. Refrigerator body. DETAILED DESCRIPTION

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention. Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described features. In addition, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly stated. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0053] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0054] In the manufacturing process of refrigerators in the prior art, due to the accumulation of tolerances of various components, certain assembly errors during the assembly process, and deformation and twisting of the door body after transportation and clamping, there may be a large deviation in the distance between part of the door body and the front surface of the box body, which makes the plane where the refrigerator door body is located inconsistent and tilted relative to the front and back of the box body. Especially for multi-door refrigerators, such as double-door refrigerators, it is easy to cause the front and back directions of the two doors to be uneven after the two doors are assembled, especially on the opposite side of the refrigerator door hinge. This phenomenon is more likely to occur.

[0055] In the prior art, some adjustments are generally made through the door hinges to improve the unevenness of the door body, but this adjustment method is relatively cumbersome. At the same time, disassembling and assembling the door body requires relatively professional knowledge so as not to affect the function of the refrigerator. It is very inconvenient for users and reduces the user experience.

[0056] Therefore, in order to solve the problem that the adjustment method for adjusting the unevenness of the refrigerator door is cumbersome and the user experience is low, in some embodiments, such as Figure 1-Figure 3 As shown, the present invention proposes a refrigerator door flatness adjustment structure, comprising a refrigerator door 1 provided with a door end cover 2, wherein at least one adjustment device 3 is provided in the door end cover 2, and the adjustment device 3 includes a power assembly 31, a propulsion assembly 32 and an adjustment assembly 33 installed in the door end cover 2;

[0057] A propulsion assembly 32 is transmission-connected between the power assembly 31 and the adjustment assembly 33;

[0058] One end of the power assembly 31 extends out of the door end cover 2 and is provided with a knob 311;

[0059] One end of the adjusting assembly 33 extends out of the door end cover 2 along the same axis and abuts against the corresponding refrigerator body 4; and the end of the adjusting assembly 33 extending out of the door end cover 2 is in the same plane as the knob 311;

[0060] The power assembly 31 drives the adjustment assembly 33 to perform telescopic movement toward the refrigerator body 4 through the propulsion assembly 32 .

[0061] It should be noted that the refrigerator housing 4 of this embodiment has a forward operating surface and a rearward heat dissipation surface. The forward operating surface is provided with an access opening, and the refrigerator door 1 is rotatably connected to the forward operating surface of the refrigerator housing 4 via a hinge mechanism. Furthermore, the refrigerator door 1 of this embodiment is the door of a multi-door refrigerator, which includes at least two refrigerator doors 1 arranged side by side. Furthermore, the outer surface of the knob 311 of this embodiment is provided with anti-slip grooves to facilitate the user's grip and rotation of the knob 311.

[0062] In this way, when the user holds the knob 311 with his hand and turns it clockwise, the power component 31 drives the adjustment component 33 to make a linear extension movement toward the refrigerator body 4 through the propulsion component 32; and when the user holds the knob 311 with his hand and turns it counterclockwise, the power component 31 drives the adjustment component 33 to make a linear retraction movement toward the refrigerator body 4 through the propulsion component 32 (and the extension and retraction proposed in this embodiment are equivalent to forward and backward movement), thereby adjusting the distance between the refrigerator door body 1 and the refrigerator body 4, thereby adjusting the flatness of the refrigerator door body 1 and other refrigerator door bodies 1 in the front and rear directions. It is not only simple to operate and has high adjustment efficiency, but also the adjustment device 3 occupies a small space; it can also eliminate market complaints and other problems caused by the unevenness of the refrigerator door body 1, improve the product image, and improve the user experience.

[0063] Moreover, the end of the adjusting component 33 extending out of the door end cover 2 and the knob component 311 are both located on the side of the door end cover 2 facing the refrigerator body 4. When the refrigerator door 1 is closed relative to the refrigerator body 4, the end of the adjusting component 33 extending out of the door end cover 2 and the knob component 311 are located between the refrigerator door 1 and the refrigerator body 4, thereby hiding the end of the adjusting component 33 extending out of the door end cover 2 and the knob component 311, thereby improving the aesthetics of the refrigerator door 1.

[0064] In some embodiments, in order to improve the transmission stability of the regulating device 3 and improve the regulating efficiency of the regulating device 3, as shown in FIG. Figure 3 As shown, the propulsion assembly 32 includes a threaded portion 321 and a propulsion wheel 322;

[0065] The threaded portion 321 is mounted on the power assembly 31 , and the threaded portion 321 is engaged with the driving wheel 322 . The driving wheel 322 is mounted on the adjusting assembly 33 .

[0066] When the user holds the knob 311 with his hand and rotates it clockwise, the threaded portion 321 on the outer wall of the power assembly 31 rotates clockwise accordingly, and then a rolling meshing motion occurs between the pushing wheel 322 and the threaded portion 321, thereby converting the rotational motion into a linear motion, and then driving the adjustment assembly 33 to extend toward the refrigerator body 4; and when the user holds the knob 311 with his hand and rotates it counterclockwise, the threaded portion 321 on the outer wall of the power assembly 31 rotates counterclockwise accordingly, and then a rolling meshing motion occurs between the pushing wheel 322 and the threaded portion 321, thereby converting the rotational motion into a linear motion, and then driving the adjustment assembly 33 to retract toward the refrigerator body 4, thereby adjusting the distance between the refrigerator door body 1 and the refrigerator body 4, thereby adjusting the flatness of the refrigerator door body 1 and the other refrigerator door bodies 1 in the front and rear directions. This not only has simple operation and high adjustment efficiency, but also the adjustment device 3 occupies a small space.

[0067] Specifically, a second annular groove 323 is provided along the circumferential direction on the outer sidewall of the driving wheel 322, and the second annular groove 323 meshes with the thread of the thread portion 321, so as to realize the rolling meshing movement between the driving wheel 322 and the thread portion 321.

[0068] In some embodiments, as Figure 3 shown, the adjusting assembly 33 includes a base 331, a support column 332 and an adjusting rod 333;

[0069] A base 331 is provided on the inner sidewall of the door end cover 2 facing the knob member 311. One end of the base 331 extends axially corresponding to the driving wheel 322 to form a support column 332. The driving wheel 322 is sleeved on the support column 332, and the end of the support column 332 is connected to the inner sidewall of the door end cover 2 facing the knob member 311;

[0070] The other end of the base 331 extends axially to form an adjusting rod 333. The end of the adjusting rod 333 extends out of the door end cover 2 and abuts against the corresponding refrigerator cabinet 4.

[0071] It should be noted that the base 331, the support column 332 and the adjusting rod 333 proposed in this embodiment are integrally formed into a "C" - shaped structure.

[0072] In this way, when the user holds the knob member 311 with the hand and turns it clockwise, at this time, the thread portion 321 on the outer sidewall of the power assembly 31 rotates clockwise accordingly. Then, a rolling meshing movement occurs between the driving wheel 322 and the thread portion 321, converting the rotational movement into a linear movement. That is, the driving wheel 322 moves along the thread portion 321 toward the side of the knob member 311, causing the driving wheel 322 to带动 the support column 332 to move backward, and the support column 332带动 the adjusting rod 333 to extend out of the refrigerator cabinet 4 (equivalent to moving backward); when the user holds the knob member 311 with the hand and turns it counterclockwise, at this time, the thread portion 321 on the outer sidewall of the power assembly 31 rotates counterclockwise accordingly. Then, a rolling meshing movement occurs between the driving wheel 322 and the thread portion 321, thereby converting the rotational movement into a linear movement. That is, the driving wheel 322 moves along the thread portion 321 away from the side of the knob member 311, causing the driving wheel 322 to带动 the support column 332 to move forward, and the support column 332带动 the adjusting rod 333 to retract into the refrigerator cabinet 4 (equivalent to moving forward), so as to adjust the distance between the refrigerator door body 1 and the refrigerator cabinet 4, and thus adjust the flatness of the refrigerator door body 1 and other refrigerator door bodies 1 in the front - rear direction. This not only has simple operation, high adjustment efficiency, but also the adjusting device 3 occupies a small space.

[0073] Of course, due to the structural limitations of the adjusting device 3 itself, the length of the adjusting rod 333 extending or retracting is limited. When the pushing wheel 322 is engaged with the side of the threaded portion 321 closest to the knob member 311, the length of the adjusting rod 333 extending out of the door end cover 2 is at its maximum; when the pushing wheel 322 is engaged with the side of the threaded portion 321 farthest from the knob member 311, the length of the adjusting rod 333 extending out of the door end cover 2 is at its minimum.

[0074] In other embodiments, in order to ensure the stability of the driving wheel 322 being mounted on the support column 332, as shown in FIG. Figure 4 and Figure 6 As shown, a limiting portion 3321 is circumferentially provided on the side of the support column 332 corresponding to the pushing wheel 322 away from the knob member 311, and a matching bolt is connected to the side of the support column 332 corresponding to the pushing wheel 322 close to the knob member 311 with a nut 3322, so that the limiting portion 3321 and the nut 3322 cooperate to axially limit the pushing wheel 322.

[0075] In some embodiments, in order to ensure the smoothness of the forward and backward movement of the adjustment rod 333 and to ensure that the adjustment rod 333 does not deviate during the forward and backward movement, Figure 4-Figure 5 As shown, a limiting member 334 is provided on the inner side wall of the base 331 corresponding to the adjusting rod 333, and a guide slot 335 is provided through the limiting member 334 along the axial direction;

[0076] The adjusting rod 333 and the guide slot 335 form a sliding pair through clearance fit.

[0077] In some embodiments, to further ensure the smoothness of the forward and backward movement of the adjustment rod 333, as shown in FIG. Figure 5 As shown, at least one inner side wall of the guide groove 335 is axially recessed inward to form a receiving groove 338, and a plurality of rolling elements 339 are matched and installed between the bottom wall of the receiving groove 338 and the corresponding adjusting rod 333, and the rolling elements 339 are in rolling contact with the bottom wall of the receiving groove 338 and the surface of the adjusting rod 333.

[0078] It should be noted that the rolling element 339 proposed in this embodiment is preferably a ball, and the width of the accommodating groove 338 is slightly larger than the width of a rolling element 339, so that the rolling element 339 can be placed in and roll; and the bottom wall of the accommodating groove 338 is continuously laid with rolling elements 339 along the axial direction, and the end of the rolling element 339 away from the bottom wall of the accommodating groove 338 is in rolling contact with the corresponding adjustment rod 333.

[0079] In some embodiments, as Figure 3 and Figure 6As shown, the adjustment assembly 33 further includes a first outer sleeve 336, which is disposed on the inner side wall of the door end cover 2 close to the knob 311, and a first elastic body 337 is matched and installed in the first outer sleeve 336;

[0080] The end of the support column 332 is matched and extends into the first outer sleeve 336 and is sleeved with a first elastic body 337 .

[0081] It should be noted that the end extending from the nut 3322 is sleeved with a first elastic body 337 , and the first elastic body 337 is preferably a compression spring.

[0082] In this way, when the pushing wheel 322 drives the adjusting rod 333 to extend toward the refrigerator body 4 through the support column 332, the support column 332 will also move backward accordingly, thereby compressing the first elastic body 337 and causing it to elastically deform, thereby converting the kinetic energy of the backward movement of the support column 332 into elastic potential energy, thereby reducing the vibration and noise generated by the rigid collision and playing a buffering and shock-absorbing role; when the adjusting rod 333 retracts toward the refrigerator body 4, the support column 332 will move forward more effortlessly due to the elastic deformation of the first elastic body 337.

[0083] In some embodiments, as Figure 7-Figure 8 As shown, the power assembly 31 further includes a second outer sleeve 312, an outer rotating shaft 313 and an inner rotating shaft 314;

[0084] The second outer sleeve 312 is disposed on the inner side wall of the door end cover 2 away from the knob 311 , and a bottom wall of the second outer sleeve 312 away from the knob 311 is provided with a slot 3121 ;

[0085] The end of the outer shaft 313 extends into and is sleeved with the second outer sleeve 312 , and the outer wall of the outer shaft 313 is provided with the threaded portion 321 engaged with the driving wheel 322 ;

[0086] The inner shaft 314 axially passes through the outer shaft 313 and is connected to the outer shaft 313; the end of the inner shaft 314 is engaged with the slot 3121, and the starting end of the inner shaft 314 extends out of the door end cover 2 and is connected to the knob 311.

[0087] It should be noted that a hexagonal through-hole is axially extending through the interior of the outer shaft 313, and the shape of the inner shaft 314 corresponds to the hexagonal through-hole, preferably a hexagonal shape. Thus, when the inner shaft 314 axially passes through the outer shaft 313, the outer wall of the inner shaft 314 will fit into the hexagonal through-hole, preventing the inner shaft 314 from rotating relative to the outer shaft 313. Furthermore, the threaded portion 321 is continuously spirally arranged along the circumference of the middle portion of the outer wall of the outer shaft 313.

[0088] When the user holds the knob 311 by hand, he first pulls out the inner shaft 314 to make the end of the inner shaft 314 disengage from the slot 3121, and then rotates the knob 311 clockwise, so that the knob 311 drives the outer shaft 313 to rotate clockwise through the inner shaft 314, thereby causing the threaded portion 321 to rotate clockwise as well. Then, a rolling meshing motion occurs between the pushing wheel 322 and the threaded portion 321, thereby converting the rotational motion into a linear motion, that is, the pushing wheel 322 moves along the threaded portion 321 toward the side of the knob 311, and then the pushing wheel 322 drives the adjusting rod 333 to extend toward the refrigerator body 4 through the supporting column 332; and when the end of the inner shaft 314 disengages from the slot 3121 and rotates counterclockwise When rotating, the inner rotating shaft 314 will drive the outer rotating shaft 313 to rotate counterclockwise, thereby causing the threaded portion 321 to rotate counterclockwise as well, and then a rolling meshing motion will occur between the pushing wheel 322 and the threaded portion 321, thereby converting the rotational motion into a linear motion, that is, the pushing wheel 322 moves along the threaded portion 321 away from the knob member 311, and then the pushing wheel 322 drives the adjusting rod 333 to retract toward the refrigerator body 4 through the support column 332, thereby completing the adjustment process of the entire adjustment device 3; in this way, not only can the distance between the refrigerator door body 1 and the refrigerator body 4 and the flatness of the refrigerator door body 1 and other refrigerator door bodies 1 in the front and rear directions be adjusted, but also the operation is simple, the adjustment efficiency is high, and the adjustment device 3 occupies a small space.

[0089] In some embodiments, to ensure that the inner shaft 314 can automatically reset after being pulled out, the operation is simplified, such as Figure 7 As shown, a first annular groove 3131 is formed in the inner portion of the outer shaft 313 extending into the second outer sleeve 312 and corresponding to the inner shaft 314 along the circumferential direction;

[0090] A flange 3141 is circumferentially provided in the middle of the outer wall of the inner shaft 314 extending into the second outer sleeve 312 ; a second elastic body 315 is nested in the inner shaft 314 between the flange 3141 and the side of the first annular groove 3131 away from the clamping groove 3121 .

[0091] It should be noted that the second elastic body 315 proposed in this embodiment is preferably a compression spring.

[0092] In this way, when the user holds the knob part 311 with his hand and pulls out the inner rotating shaft 314 so that the end of the inner rotating shaft 314 is out of the slot 3121, the distance between the flange 3141 and the side of the first annular groove 3131 away from the slot 3121 will be reduced, thereby causing the second elastic body 315 to be compressed and elastically deformed; if the user releases the knob part 311, the inner rotating shaft 314 will automatically reset due to the elastic deformation of the second elastic body 315, thereby eliminating the need for the user to spend time and effort to match the end of the inner rotating shaft 314 into the slot 3121, further simplifying the operation of the adjustment device 3 and improving the user's experience.

[0093] In some embodiments, in order to ensure the stability of the knob 311 during the operation of the refrigerator, the knob 311 is prevented from spontaneously rotating due to vibration, gravity or other external forces. Figure 9 As shown, the outer wall of the door end cover 2 facing the knob member 311 is circumferentially provided with a plurality of locking grooves 201 , and all the locking grooves 201 are distributed around the starting end of the inner rotating shaft 314 ;

[0094] The knob 311 is provided with at least one limiting through hole 316 axially extending therethrough corresponding to the locking slot 201 ; a locking post 317 is slidably disposed in the limiting through hole 316 , and the locking post 317 can be selectively inserted into the corresponding locking slot 201 to achieve locking.

[0095] It should be noted that the knob member 311 proposed in this embodiment is illustrated by taking one limiting through hole 316 as an example.

[0096] When the user needs to turn the knob 311, the locking column 317 can be disengaged from the locking slot 201 to unlock the knob. Then the user holds the knob 311 with his hand and pulls out the inner shaft 314 to make the end of the inner shaft 314 disengage from the slot 3121, so that the inner shaft 314 rotates clockwise or counterclockwise, thereby driving the adjustment rod 333 to move forward and backward toward the refrigerator body 4. When the adjustment rod 333 extends to the ideal length, the user can insert the locking column 317 into the corresponding locking slot 201 to achieve locking, thereby avoiding the knob 311 from rotating spontaneously, avoiding affecting the flatness of the refrigerator door 1 and other refrigerator doors 1 in the front and back directions, and improving the user experience.

[0097] Specifically, a limiting through-hole 316 is axially formed on the edge of the knob 311, corresponding to the locking slot 201. The sidewall of the limiting through-hole 316 is axially provided with an opening 3161 that communicates with the outside. The inner sidewall of the limiting through-hole 316 is axially provided with a plurality of limiting grooves 3162, and the axial length of the limiting grooves 3162 does not exceed the axial length of the limiting through-hole 316. A limiting block 3171 is axially provided on the outer sidewall of the locking post 317, corresponding to the limiting groove 3162. The limiting block 3171 and the corresponding limiting groove 3162 form a sliding pair through a clearance fit, so that the limiting block 3171 can slide axially within the corresponding limiting groove 3162. Furthermore, a plurality of friction ribs 3172 are axially provided on the outer sidewall of the locking post 317, corresponding to the opening 3161.

[0098] In this way, when the user needs to unlock the knob 311, the user can first press the friction rib 3172 located between the openings 3161 with his hand, and then push the locking column 317 outward. Then, the locking column 317 slides in the corresponding limiting groove 3162 through the limiting block 3171, so that the locking column 317 disengages from the corresponding locking groove 201, thereby unlocking.

[0099] When the user needs to lock the knob 311, the user can first press the friction rib 3172 located between the openings 3161 and then push the locking post 317 inward. The locking post 317 then slides into the corresponding limiting groove 3162 via the limiting block 3171, so that the locking post 317 is inserted into the corresponding locking groove 201, thereby locking the knob 311. At this time, the locking post 317 and the locking groove 201 on the door end cover 2 cooperate to prevent the knob 311 from rotating. During installation, the locking post 317 cooperates with the limiting groove 3162 via the limiting block 3171, allowing the locking post 317 to be assembled and prevented from falling out of the limiting through hole 316.

[0100] In some embodiments, as Figure 10 As shown, the present invention also provides a refrigerator, which includes the refrigerator door flatness adjustment structure described above.

[0101] When the user holds the knob 311 by hand, he first pulls out the inner shaft 314 to make the end of the inner shaft 314 disengage from the slot 3121, and then rotates the knob 311 clockwise, so that the knob 311 drives the outer shaft 313 to rotate clockwise through the inner shaft 314, thereby causing the threaded portion 321 to rotate clockwise as well. Then, a rolling meshing motion occurs between the pushing wheel 322 and the threaded portion 321, thereby converting the rotational motion into a linear motion, that is, the pushing wheel 322 moves along the threaded portion 321 toward the side of the knob 311, and then the pushing wheel 322 drives the adjusting rod 333 to extend toward the refrigerator body 4 through the supporting column 332; and when the end of the inner shaft 314 disengages from the slot 3121 and rotates counterclockwise When rotating, the inner rotating shaft 314 will drive the outer rotating shaft 313 to rotate counterclockwise, thereby causing the threaded portion 321 to rotate counterclockwise as well, and then a rolling meshing motion will occur between the pushing wheel 322 and the threaded portion 321, thereby converting the rotational motion into a linear motion, that is, the pushing wheel 322 moves along the threaded portion 321 away from the knob member 311, and then the pushing wheel 322 drives the adjusting rod 333 to retract toward the refrigerator body 4 through the support column 332, thereby completing the adjustment process of the entire adjustment device 3; in this way, not only can the distance between the refrigerator door body 1 and the refrigerator body 4 and the flatness of the refrigerator door body 1 and other refrigerator door bodies 1 in the front and rear directions be adjusted, but also the operation is simple, the adjustment efficiency is high, and the adjustment device 3 occupies a small space.

[0102] The end of the adjusting rod 333 extending out of the door end cover 2 and the knob part 311 are both located on the side of the door end cover 2 facing the refrigerator body 4. In this way, when the refrigerator door 1 is closed relative to the refrigerator body 4, the end of the adjusting rod 333 extending out of the door end cover 2 and the knob part 311 are both located between the refrigerator door 1 and the refrigerator body 4, thereby hiding the end of the adjusting rod 333 extending out of the door end cover 2 and the knob part 311, thereby improving the overall aesthetics of the refrigerator.

[0103] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A refrigerator door flatness adjustment structure, comprising a refrigerator door (1) provided with a door end cover (2), characterized in that: At least one adjusting device (3) is provided in the door end cover (2), and the adjusting device (3) comprises a power assembly (31), a propulsion assembly (32), and an adjusting assembly (33) installed in the door end cover (2); A propulsion assembly (32) is connected in a transmission manner between the power assembly (31) and the adjustment assembly (33); One end of the power assembly (31) extends out of the door end cover (2) and is provided with a knob (311); One end of the adjusting component (33) extends out of the door end cover (2) along the same axis and abuts against the corresponding refrigerator body (4); and the end of the adjusting component (33) extending out of the door end cover (2) is in the same plane as the knob (311); The power assembly (31) drives the adjustment assembly (33) to perform telescopic movement toward the refrigerator body (4) through the propulsion assembly (32).

2. The refrigerator door flatness adjustment structure according to claim 1, characterized in that: The propulsion assembly (32) includes a threaded portion (321) and a propulsion wheel (322); The threaded portion (321) is mounted on the power assembly (31), the threaded portion (321) is engaged with the driving wheel (322), and the driving wheel (322) is mounted on the adjusting assembly (33).

3. The refrigerator door flatness adjustment structure according to claim 2, characterized in that: The adjustment assembly (33) includes a base (331), a support column (332) and an adjustment rod (333); The door end cover (2) is provided with a base (331) on the inner side wall facing the knob member (311); one end of the base (331) extends axially corresponding to the driving wheel (322) to form a support column (332); the driving wheel (322) is sleeved on the support column (332); and the end of the support column (332) is connected to the inner side wall of the door end cover (2) facing the knob member (311); The other end of the base (331) extends coaxially to form an adjusting rod (333), and the end of the adjusting rod (333) extends out of the door end cover (2) and abuts against the corresponding refrigerator body (4).

4. The refrigerator door flatness adjustment structure according to claim 3, characterized in that: The inner side wall of the base (331) is provided with a limiting member (334) corresponding to the adjusting rod (333), and the limiting member (334) is provided with a guide slot (335) extending through the limiting member (334) along the axial direction; The adjusting rod (333) can be matched and extended into the guide slot (335), and the adjusting rod (333) and the guide slot (335) form a sliding pair through clearance fit.

5. The refrigerator door flatness adjustment structure according to claim 4, characterized in that: At least one inner side wall of the guide slot (335) is recessed inwardly along the axial direction to form a receiving slot (338), and a plurality of rolling elements (339) are matched and installed between the bottom wall of the receiving slot (338) and the corresponding adjusting rod (333), and the rolling elements (339) are in rolling contact with the bottom wall of the receiving slot (338) and the surface of the adjusting rod (333).

6. The refrigerator door flatness adjustment structure according to claim 3, characterized in that: The adjustment assembly (33) further includes a first outer sleeve (336), the first outer sleeve (336) being arranged on the inner side wall of the door end cover (2) close to the knob member (311), and a first elastic body (337) being matched and mounted in the first outer sleeve (336); The end of the support column (332) matches and extends into the first outer sleeve (336) and is sleeved with a first elastic body (337).

7. The refrigerator door flatness adjustment structure according to claim 2, characterized in that: The power assembly (31) further includes a second outer sleeve (312), an outer rotating shaft (313) and an inner rotating shaft (314); The second outer sleeve (312) is arranged on the inner side wall of the door end cover (2) away from the knob member (311), and a bottom wall of the second outer sleeve (312) away from the knob member (311) is provided with a slot (3121); The end of the outer rotating shaft (313) extends into and is sleeved with the second outer sleeve (312), and the outer wall of the outer rotating shaft (313) is provided with the threaded portion (321) engaged with the driving wheel (322); The inner rotating shaft (314) axially penetrates the outer rotating shaft (313) and is connected to the outer rotating shaft (313); the end of the inner rotating shaft (314) is engaged with the clamping groove (3121), and the starting end of the inner rotating shaft (314) extends out of the door end cover (2) and is connected to the knob member (311).

8. The refrigerator door flatness adjustment structure according to claim 7, characterized in that: A first annular groove (3131) is formed in the interior of the outer rotating shaft (313) extending into the second outer sleeve (312) and corresponding to the inner rotating shaft (314) along the circumferential direction; A flange (3141) is provided in the circumferential direction on the middle portion of the outer side wall of the inner rotating shaft (314) extending into the second outer sleeve (312); a second elastic body (315) is nested in the inner rotating shaft (314) between the flange (3141) and the side of the first annular groove (3131) away from the clamping groove (3121).

9. The refrigerator door flatness adjustment structure according to claim 7, characterized in that: The outer wall of the door end cover (2) facing the knob member (311) is circumferentially provided with a plurality of locking grooves (201), and all the locking grooves (201) are distributed around the starting end of the inner rotating shaft (314); The knob member (311) is provided with at least one limiting through hole (316) axially extending through the locking groove (201); a locking column (317) is slidably arranged in the limiting through hole (316); and the locking column (317) can be selectively inserted into the corresponding locking groove (201) to achieve locking.

10. A refrigerator, characterized in that: The refrigerator includes the refrigerator door flattening adjustment structure according to any one of claims 1 to 9.

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