Refrigeration appliance

Abstract

The utility model discloses a refrigeration plant relates to refrigeration plant technical field, wherein, refrigeration plant includes box, drawer and sliding fit structure, and the box has the inner bag of can hold article, and the drawer can be installed in the inner bag along the fore and aft activity, and the sliding fit structure includes the sliding part and the cooperation part of drawer and inner bag's separate setting, and the sliding part is cooperated with the cooperation part, to make the drawer and inner bag can form line contact sliding, through setting the inner bag, to install the drawer, and the drawer can be set up in the inner bag along the fore and aft activity, to classify and store the article in the inner bag, and through setting the sliding part and the cooperation part simultaneously, to make the drawer in the inner bag along the fore and aft sliding at least partial can form line contact, relative to the sliding of surface surface contact, line contact sliding has greatly reduced the contact area of drawer and inner bag, can greatly reduce the sliding friction between drawer and inner bag, thereby has solved the problem that the existing no slide rail drawer is larger when pulling and pushing friction.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a refrigeration device. Background Technology

[0002] Currently, to reduce the cost of refrigeration equipment (such as refrigerators), mid-to-low-end refrigeration equipment drawers generally adopt a slide-less design. In this design, the drawer rests directly on the inner liner of the refrigeration equipment, forming a low-friction contact (surface-to-surface contact). Therefore, the smoothness of the drawer's movement largely depends on the materials and surface treatment processes. If the surface treatment is not refined enough, the drawer may jam or become difficult to move during use, especially as material creep at low temperatures can exacerbate the jamming. Utility Model Content

[0003] The main purpose of this invention is to propose a refrigeration device that aims to solve the problem of high friction when pushing and pulling existing drawers without slide rails.

[0004] To achieve the above objectives, the refrigeration equipment proposed in this utility model includes:

[0005] The box has an inner liner that can hold items;

[0006] A drawer, capable of being movably installed within the inner liner in a front-to-back direction; and,

[0007] A sliding fit structure includes a sliding part and a fitting part. The sliding part is disposed on the drawer, and the fitting part is disposed on the inner liner. The sliding part and the fitting part fit together so that the drawer and the inner liner can slide in line contact.

[0008] In one embodiment, one of the sliding portion and the mating portion is configured as a sliding protrusion and the other is configured as a mating recess.

[0009] In one embodiment, the mating recess has a recessed inner wall surface, which is provided as an arcuate curved surface; and / or,

[0010] The outer surface of the sliding protrusion is set as a circular arc surface.

[0011] In one embodiment, the radius of curvature of the outer surface of the sliding protrusion is R1, and the radius of curvature of the inner wall surface of the mating recess is R2, wherein:

[0012] 2mm≤R1≤5mm, and / or,R2-R1≥0.2mm.

[0013] In one embodiment, the mating recess further has a straight inner wall surface that connects to the recessed inner wall surface, the straight inner wall surface being located inside the recessed inner wall surface and connected to the lowest position of the recessed inner wall surface.

[0014] In one embodiment, the inner liner includes a liner body and a first track portion disposed on the inner sidewall of the liner body. The first track portion extends in a front-rear direction, the mating recess is disposed on the upper end surface of the first track portion, and the flat inner wall surface extends to the side surface connected to the first track portion.

[0015] In one embodiment, the inner liner includes a liner body and a first track portion disposed on the inner sidewall of the liner body, wherein the mating recess is disposed on the upper end face of the first track portion; and / or,

[0016] The sliding protrusion is located at the lower end of the drawer and is elongated to form a second track section, which is integrally injection molded with the drawer.

[0017] In one embodiment, the rear end of the inner liner is provided with a first limiting part for abutting against the sliding part.

[0018] In one embodiment, the rear end of the drawer is provided with a second limiting part to abut against the inner side wall of the inner liner;

[0019] The sliding part extends in the front-to-back direction and includes a first sliding segment and a second sliding segment. The second sliding segment is connected to the rear end of the first sliding segment, and the second sliding segment is inclined upward in the front-to-back direction.

[0020] In one embodiment, the inner liner further includes a liner body and a partition disposed within the liner body to divide the liner body into two accommodating cavities spaced apart in the left-right direction;

[0021] The drawer and the corresponding sliding fit structure are disposed within one of the receiving cavities.

[0022] In one embodiment, two sliding fit structures are provided, and the two sliding fit structures are respectively located on both sides of the drawer in the left-right direction.

[0023] In the technical solution of this utility model, the cabinet is provided to install the inner liner, and the inner liner is provided to install the drawer. The drawer can be movably disposed within the inner liner in the front-to-back direction to classify and store items within the inner liner. At the same time, by providing the sliding part and the mating part, the drawer can at least partially form line contact when sliding in the front-to-back direction within the inner liner. Compared with surface contact sliding, line contact sliding greatly reduces the contact area between the drawer and the inner liner, which can greatly reduce the sliding friction between the drawer and the inner liner, thereby solving the problem of high friction when pushing and pulling existing drawers without slide rails. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the refrigeration equipment provided by this utility model;

[0026] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0027] Figure 3 for Figure 1 A three-dimensional structural diagram of the inner liner from one angle;

[0028] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0029] Figure 5 for Figure 3 A partial cross-sectional view of the inner liner of the container;

[0030] Figure 6 for Figure 1 A three-dimensional structural diagram of the inner liner from another angle;

[0031] Figure 7 for Figure 6 A magnified view of a section at point C;

[0032] Figure 8 for Figure 1 A 3D structural diagram of the drawer;

[0033] Figure 9 for Figure 8 A partial sectional view of the drawer in the diagram.

[0034] Explanation of icon numbers:

[0035] 100. Refrigeration equipment; 1. Inner liner; 11. Liner body; 12. First track section; 13. First limiting section; 2. Drawer; 21. Second limiting section; 3. Sliding fit structure; 31. Sliding protrusion; 311. First sliding section; 312. Second sliding section; 32. Fitting recess; 321. Recessed inner wall surface; 322. Flat inner wall surface; 4. Divider.

[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] Currently, to reduce the cost of refrigeration equipment (such as refrigerators), mid-to-low-end refrigeration equipment drawers generally adopt a slide-less design. In this design, the drawer rests directly on the inner liner of the refrigeration equipment, forming a low-friction contact (surface-to-surface contact). Therefore, the smoothness of the drawer's movement largely depends on the materials and surface treatment processes. If the surface treatment is not refined enough, the drawer may jam or become difficult to move during use, especially as material creep at low temperatures can exacerbate the jamming.

[0041] Based on this, this utility model proposes a refrigeration device aimed at solving the problem of high friction when pushing and pulling drawers in existing railless refrigeration devices. Among other things, Figures 1 to 9 A schematic diagram of the structure of the refrigeration equipment provided by this utility model.

[0042] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the refrigeration device 100 includes a cabinet, a drawer 2, and a sliding fit structure 3. The cabinet has an inner liner 1 capable of accommodating items. The drawer 2 is movably installed in the inner liner 1 in a front-to-back direction. The sliding fit structure 3 includes a sliding part and a fitting part. The sliding part is disposed in the drawer 2, and the fitting part is disposed in the inner liner 1. The sliding part and the fitting part cooperate to enable the drawer 2 and the inner liner 1 to form a line contact and slide.

[0043] In this invention, the user is used as a directional reference. "Forward" refers to the direction facing the user, or the direction facing the side of the refrigeration device 100 with a door. "Backward" refers to the direction opposite to "forward," specifically the direction away from the user. The up and down directions are those with gravity as a reference. The refrigeration device can be of various types, such as a refrigerator or a freezer; this invention does not limit this. Furthermore, the inner liner 1 is mainly used to hold items that need to be placed in a low-temperature environment, such as food. Its material can be of various types, such as metals like steel, inorganic non-metals like ceramics, or polymers like plastics; this invention does not limit this. The drawer 2 is used to place items so that they can be categorized and stored within the inner liner 1. Its material can be of various types, such as metals like steel, inorganic non-metals like ceramics, or polymers like plastics; this invention does not limit this.

[0044] It should also be noted that the ability of drawer 2 and inner liner 1 to slide in line contact means that drawer 2 maintains line contact with inner liner 1 throughout the sliding process. Specifically, there are various ways in which the sliding part and the mating part can slide in line contact, such as line-to-line contact or line-to-surface contact, as long as the sliding part and the mating part can form line contact. This utility model does not limit this. Furthermore, the contact area between the sliding part and the mating part can be entirely line contact or partially line contact, etc. Therefore, as long as the contact area between the sliding part and the mating part can at least partially form line contact, this utility model does not limit this.

[0045] In the technical solution of this utility model, the cabinet is provided to install the inner liner 1, and the inner liner 1 is provided to install the drawer 2. The drawer 2 can be movably disposed in the inner liner 1 in the front-back direction to classify and store items in the inner liner 1. At the same time, by providing the sliding part and the mating part, the drawer 2 can at least partially form line contact when sliding in the front-back direction in the inner liner 1. Compared with surface contact sliding, line contact sliding greatly reduces the contact area between the drawer 2 and the inner liner 1, which can greatly reduce the sliding friction between the drawer 2 and the inner liner 1, thereby solving the problem of high friction when pushing and pulling existing drawers 2 without slide rails.

[0046] There are several ways to configure the sliding part and the mating part. In one embodiment, one of the sliding part and the mating part is configured as a sliding protrusion 31, and the other is configured as a mating recess 32. Thus, by configuring the sliding protrusion 31 and the mating recess 32 to slide in cooperation with each other, the drawer 2 can form a line contact during its sliding within the inner liner 1, thereby helping to reduce the frictional resistance between the drawer 2 and the inner liner 1. In another embodiment, both the sliding part and the mating part are provided with sliding protrusions 31. Thus, by providing two sliding protrusions 31, the sliding part and the mating part can form a line contact for sliding.

[0047] It is understood that there are various types of sliding parts and mating parts. For example, the sliding part may be the sliding protrusion 31 and the mating part may be the mating recess 32, or the sliding part may be the mating recess 32 and the mating part may be the sliding protrusion 31. This utility model does not limit the types of mating parts.

[0048] The shape of the mating recess 32 can vary, for example, it can be U-shaped or polygonal, etc. This invention does not limit this; specifically, in this embodiment, please refer to... Figures 3 to 7The mating recess 32 has a recessed inner wall surface 321, which is an arc-shaped curved surface. This arc-shaped curved surface allows the inner wall surface 321 to continuously change, ensuring that the drawer 2 maintains line contact with the inner liner 1 during sliding. Furthermore, the inner liner 1 generates an inward force when supporting the drawer 2, limiting its left-right and upward movement and reducing its wobbling during sliding. This significantly improves the stability of the drawer 2 during sliding, enhancing the user experience.

[0049] The sliding protrusion 31 can have various shapes. For example, it can be triangular or polygonal, etc. This utility model does not limit it in this respect. Specifically, in this embodiment, please refer to... Figure 8 and Figure 9 The outer surface of the sliding protrusion 31 is set as an arc surface. In this way, the outer surface of the sliding protrusion 31 can be continuously changed so that the sliding protrusion 31 can always form line contact when it comes into contact with the mating concave and convex surfaces, thereby helping to reduce the sliding friction between the drawer 2 and the inner liner 1.

[0050] It should be noted that the two related technical features mentioned above, namely, "the mating recess 32 has a recessed inner wall surface 321, which is set in the form of an arcuate surface" and "the outer surface of the sliding protrusion 31 is set in the form of an arcuate surface", can be set either one or both. Obviously, setting both at the same time is better.

[0051] Please refer to the figure in one embodiment of this utility model. Figures 3 to 5 The radius of curvature of the outer surface of the sliding protrusion 31 is R1, where 2mm≤R1≤5mm. Since the smaller the radius of curvature of the outer surface of the sliding protrusion 31, the smaller the contact area between the sliding protrusion 31 and the mating recess 32, the drawer 2 and the inner liner 1 are less likely to form an elastic contact. Conversely, the larger the radius of curvature of the outer surface of the sliding protrusion 31, the larger the contact area between the sliding protrusion 31 and the mating recess 32, and the greater the sliding friction between them. Therefore, 2mm≤R1≤5mm facilitates the formation of an elastic contact between the sliding protrusion 31 and the mating recess 32, avoiding excessive stress, and also reduces the contact area between the sliding protrusion 31 and the mating recess 32, thereby helping to reduce the sliding friction between the sliding protrusion 31 and the mating recess 32.

[0052] In one embodiment of this utility model, the radius of curvature of the outer surface of the sliding protrusion 31 is R1, and the radius of curvature of the recessed inner wall surface 321 of the mating recess 32 is R2, wherein R2-R1≥0.2mm. Since the sliding protrusion 31 is in contact with the recessed inner wall surface 321 of the mating recess 32, the smaller the difference in the radius of curvature between the mating recess 32 and the sliding protrusion 31, the closer the mating recess 32 and the sliding protrusion 31 are, the larger the contact range, and the less likely it is to slide. Therefore, R2-R1≥0.2mm is used to prevent the contact area between the sliding protrusion 31 and the mating recess 32 from being too small, so that the sliding protrusion 31 and the mating recess 32 can form a line contact.

[0053] It should be noted that the two related technical features mentioned above, "2mm≤R1≤5mm" and "R2-R1≥0.2mm", can be set individually or simultaneously. Obviously, setting them simultaneously will yield better results.

[0054] In one embodiment of this utility model, please refer to Figures 3 to 5 The mating recess 32 also has a flat inner wall surface 322 that connects to the recessed inner wall surface 321. The flat inner wall surface 322 is located inside the recessed inner wall surface 321 and is connected to the lowest position of the recessed inner wall surface 321. Thus, by setting the flat inner wall surface 322, the horizontal width of the mating recess 32 can be increased to accommodate the drawer 2, so that the position of the drawer 2 can be positioned on the inner liner 1, thereby making it easier for the user to put the drawer 2 into the inner liner 1.

[0055] Further, please refer to Figure 5 The inner liner 1 includes a liner body 11 and a first track portion 12 disposed on the inner sidewall of the liner body 11. The first track portion 12 extends in a front-rear direction. A mating recess 32 is disposed on the upper end face of the first track portion 12. A flat inner wall surface 322 extends to the side surface connected to the first track portion 12. Thus, by setting the liner body 11, the first track portion 12 is provided, and by setting the first track portion 12, the mating recess 32 is provided. At the same time, the flat inner wall surface 322 extends to the side surface of the first track portion 12, so that the mating recess 32 is approximately L-shaped, thereby eliminating part of the first track portion 12 and helping to reduce the cost of the first track portion 12. It can be understood that the first track portion 12 and the liner body 11 can be formed in various ways, for example, they can be integrally formed or separately formed. This utility model does not limit this.

[0056] In one embodiment of this utility model, the inner liner 1 includes a liner body 11 and a first track portion 12 disposed on the inner sidewall of the liner body 11. The mating recess 32 is disposed on the upper end surface of the first track portion 12, so that the first track portion 12 can support the drawer 2 upward, so that the supporting force of the first track portion 12 is opposite to the direction of gravity, and so that the first track portion 12 can stably support the drawer 2. Of course, in other embodiments, the mating recess 32 may also be disposed on the side surface of the first track portion 12.

[0057] In one embodiment, please refer to Figure 8 The sliding protrusion 31 is located at the lower end of the drawer 2 and is elongated to form a second track portion. The second track portion is integrally injection molded with the drawer 2. Thus, the sliding protrusion 31 is positioned at the lower end of the drawer 2 so that the drawer 2 can be supported downwards on the inner liner 1, aligned with the direction of gravity. This allows the first track portion 12 to stably support the drawer 2. Furthermore, the integral injection molding of the sliding protrusion 31 and the drawer 2 reduces the cost of the drawer 2 and eliminates the need for subsequent assembly processes. Of course, in other embodiments, the sliding protrusion 31 can also be located on the side surface of the drawer 2.

[0058] In one embodiment of this utility model, please refer to Figure 4 The rear end of the inner liner 1 is provided with a first limiting part 13 for abutting against the sliding part. In this way, by setting the first limiting part 13 to abut against the sliding part, the rearward movement of the drawer 2 is restricted, so as to prevent the drawer 2 from colliding with the rear side wall of the inner liner 1.

[0059] In one embodiment of this utility model, please refer to Figure 8 The drawer 2 has a second limiting part 21 at its rear end to abut against the inner wall of the inner liner 1. By setting the second limiting part 21 to abut against the inner wall of the inner liner 1, the forward movement of the drawer 2 is restricted, reducing the risk of the drawer 2 detaching from the inner liner 1 during the transportation of the refrigeration device 100.

[0060] Furthermore, the sliding part extends in the front-to-back direction and includes a first sliding segment 311 and a second sliding segment 312. The second sliding segment 312 is connected to the rear end of the first sliding segment 311. In the front-to-back direction, the second sliding segment 312 is inclined upward. Thus, by setting the first sliding segment 311 to cooperate with the mating part to form a line contact sliding, and the second sliding segment 312 is inclined backward and upward so that when the user takes out the drawer 2, the drawer 2 can be tilted upward so that the second limiting part 21 can separate from the inner wall of the inner liner 1, thereby allowing the user to take out the drawer 2.

[0061] To improve the space utilization of the inner liner 1, in this embodiment, please refer to... Figure 1 The inner liner 1 also includes a liner body 11 and a partition 4 disposed within the liner body 11 to divide the liner body 11 into two accommodating cavities spaced apart in the left-right direction. The drawer 2 and the corresponding sliding fit structure 3 are disposed in one of the accommodating cavities. Thus, by providing the partition 4 to divide the inner liner 1 into two accommodating cavities, it is convenient for users to classify and place items, thereby improving the space utilization rate of the inner liner 1. Furthermore, multiple drawers 2 are provided, and multiple drawers 2 are distributed in the two accommodating cavities to allow users to store more items.

[0062] Please refer to the figure in one embodiment of this utility model. Figures 3 to 7 Two sliding fit structures 3 are provided, and the two sliding fit structures 3 are respectively provided on both sides of the drawer 2 in the left and right direction. In this way, by providing two sliding fit structures 3, both ends of the drawer 2 can be slidably installed in the inner liner 1, thereby helping to improve the sliding stability of the drawer 2.

[0063] It should be noted that the above two related technical features: "the inner liner 1 also includes a liner body 11 and a partition 4 disposed in the liner body 11" and "two sliding fit structures 3 are provided", can be provided selectively or simultaneously, and this utility model does not limit this.

[0064] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A refrigeration device, characterized in that, include: The box has an inner liner that can hold items; The drawer is movable within the inner liner in a front-to-back direction. as well as, A sliding fit structure includes a sliding part and a fitting part. The sliding part is disposed on the drawer, and the fitting part is disposed on the inner liner. The sliding part and the fitting part fit together so that the drawer and the inner liner can slide in line contact.

2. The refrigeration equipment as described in claim 1, characterized in that, Of the sliding part and the mating part, one is configured as a sliding protrusion and the other is configured as a mating recess.

3. The refrigeration equipment as described in claim 2, characterized in that, The mating recess has a recessed inner wall surface, which is provided as a curved arc surface; and / or, The outer surface of the sliding protrusion is set as a circular arc surface.

4. The refrigeration equipment as described in claim 3, characterized in that, The radius of curvature of the outer surface of the sliding protrusion is R1, and the radius of curvature of the inner wall surface of the mating recess is R2, wherein: 2mm≤R1≤5mm, and / or,R2-R1≥0.2mm.

5. As described in claim 3, characterized in that, The mating recess also has a straight inner wall surface that connects to the inner wall surface of the recess. The straight inner wall surface is located inside the inner wall surface of the recess and is connected to the lowest position of the inner wall surface of the recess.

6. The refrigeration equipment as described in claim 5, characterized in that, The inner liner includes a liner body and a first track portion disposed on the inner sidewall of the liner body. The first track portion extends in a front-rear direction. The mating recess is disposed on the upper end surface of the first track portion. The flat inner wall surface extends to the side surface connected to the first track portion.

7. The refrigeration equipment as described in claim 2, characterized in that, The inner liner includes a liner body and a first track portion disposed on the inner sidewall of the liner body, wherein the mating recess is disposed on the upper end face of the first track portion; and / or, The sliding protrusion is located at the lower end of the drawer and is elongated to form a second track section, which is integrally injection molded with the drawer.

8. The refrigeration equipment as described in claim 1, characterized in that, The rear end of the inner liner is provided with a first limiting part for abutting against the sliding part.

9. The refrigeration equipment as described in claim 1, characterized in that, The drawer has a second limiting part at its rear end to abut against the inner wall of the inner liner; The sliding part extends in the front-to-back direction and includes a first sliding segment and a second sliding segment. The second sliding segment is connected to the rear end of the first sliding segment, and the second sliding segment is inclined upward in the front-to-back direction.

10. The refrigeration equipment as described in claim 1, characterized in that, The inner liner also includes a liner body and a partition disposed within the liner body to divide the liner body into two accommodating cavities spaced apart in the left-right direction. The drawer and the corresponding sliding fit structure are disposed within one of the accommodating cavities; and / or, Two sliding fit structures are provided, and the two sliding fit structures are respectively located on both sides of the drawer in the left and right direction.

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