Refrigerator aluminum alloy frame with good heat insulation performance

Abstract

The utility model discloses a refrigerator aluminum alloy frame with good heat insulation performance, and relates to the technical field of aluminum alloy frames. The aluminum alloy frame comprises an aluminum alloy frame body, an installation box, a screw rod, a first positioning rod and a second positioning rod, a first positioning hole and a second positioning hole are formed in the aluminum alloy frame body, a ball bearing is installed in the installation box in an embedded mode, the screw rod is rotatably installed in the ball bearing, a conical block is arranged in the installation box, and the conical block is arranged in the installation box. A first stroke hole and a second stroke hole are formed in the mounting box, a first positioning rod is mounted in the first stroke hole, and a second positioning rod is mounted in the second positioning hole. The modularized installation boxes are installed at the four corners of the aluminum alloy profile, the first positioning rod and the second positioning rod are inserted into the aluminum alloy profile in an extrusion mode at the angle not perpendicular to the installation boxes, and the aluminum profile frame is conveniently installed; the problem that welding and screw fixing of the aluminum profile frame are tedious and time-consuming is solved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy frame technology, and in particular to a refrigerator aluminum alloy frame with good heat insulation performance. Background Technology

[0002] The aluminum alloy frame of the refrigerator is the external support structure of the cabinet. It is made of aluminum alloy profiles, which are lightweight, corrosion resistant and decorative. However, the high thermal conductivity of metal can easily form "thermal bridges" that cause cold air to leak out. It is necessary to block the heat transfer path through structural optimization to ensure that the refrigerator's heat preservation performance and energy consumption meet the standards. During installation, the aluminum alloy profiles need to be connected by screws or welding to form a frame structure.

[0003] Chinese patent discloses an aluminum profile for refrigerator frames (authorization announcement number CN219415398U). This patented technology includes a refrigerator door body with a hollow aluminum alloy frame welded and fixed to one side. The hollow aluminum alloy frame includes an outer frame and an inner frame. Diagonal ribs are provided between the four corners of the outer wall of the inner frame and between the four corners of the inner wall of the outer frame. The two ends of each diagonal rib are respectively connected to the outer wall of the inner frame and the inner wall of the outer frame. Multiple connecting ribs are equidistantly arranged between the outer wall of the inner frame and the inner wall of the outer frame. The two ends of each connecting rib are respectively connected to the outer wall of the inner frame and the inner wall of the outer frame. A connecting rod is centrally located between adjacent connecting ribs, with both ends of the connecting rod connected to the connecting rib. This aluminum profile for refrigerator frames has a reasonable structure, effectively reducing the occurrence of aluminum alloy frame deformation and is highly practical.

[0004] However, this patent still has shortcomings. While it prevents deformation during use, the aluminum alloy profiles need to be welded or secured with screws during assembly, making the installation process cumbersome and time-consuming. Therefore, those skilled in the art have provided a refrigerator aluminum alloy frame with better heat insulation performance to solve the problems mentioned in the background art. Utility Model Content

[0005] 1. Technical Solution

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a refrigerator aluminum alloy frame with good heat insulation performance, comprising an aluminum alloy frame, a mounting box, a screw, a positioning rod one, and a positioning rod two. Mounting boxes are provided at each of the four corners of the aluminum alloy frame composed of aluminum alloy profiles. Positioning holes one and two, not perpendicular to the mounting boxes, are formed inside each aluminum alloy profile. Ball bearings are embedded inside the mounting boxes, and a screw is rotatably mounted inside each ball bearing. A conical block with a conical outer wall is provided inside the mounting box. A screw hole is formed inside the conical block to thread and engage with the outer wall of the screw. A stroke hole one corresponding to positioning hole one is formed inside the mounting box, and a stroke hole two corresponding to positioning hole two is formed inside the mounting box. Positioning rod one is slidably mounted inside stroke hole one, and positioning rod two is slidably mounted inside positioning hole two.

[0008] Furthermore, the outer wall of the mounting box is provided with two sets of symmetrically distributed docking grooves, and the aluminum alloy profiles are provided with symmetrically distributed retaining plates that slide into the docking grooves at their edges and corners.

[0009] Specifically, during the installation of the card plate, the corners of the card plate are constrained by the mating groove, the card plate is positioned during installation, and an installation gap exists between the card plate and the vacuum frame.

[0010] Furthermore, a bearing seat is rotatably mounted on one side of the inner wall of the mounting box, one end of the screw is rotatably mounted inside the bearing seat, and a torsion block is provided at one end of the screw;

[0011] Specifically, the bearing housing provides rotational support to one end of the screw during use, allowing the screw to rotate within the mounting box. The gripping torsion block facilitates the application of rotational force to the screw.

[0012] Furthermore, a guide rail is provided on the lower inner wall of the mounting box, and a sliding groove is provided inside the lower end of the conical block, which is slidably sleeved on the outer wall of the guide rail;

[0013] Specifically, the conical block slides on the outer wall of the guide rail via a groove, which guides the conical block's movement path.

[0014] Furthermore, a mounting base is provided at one end of the positioning rod, and a ball bearing is rotatably mounted inside one end of the mounting base. A mounting base is provided at the other end of the positioning rod, and a ball bearing is rotatably mounted inside one end of the mounting base.

[0015] Specifically, ball one rotates inside mounting base one, and ball two rotates inside mounting base two. When the conical block squeezes stroke rod one and stroke rod two, they roll and fit against the outer wall of the conical block, reducing the resistance and friction when the conical block passes through.

[0016] Furthermore, one end of the mounting base is provided with a spring that is connected to the inner wall of the mounting box and sleeved on the outside of the positioning rod, and one end of the mounting base is provided with a spring that is connected to the inner wall of the mounting box and sleeved on the outside of the positioning rod.

[0017] Specifically, spring one applies elastic force to stroke rod one through mounting seat one, so that when the conical block contacts and presses against stroke rod one, stroke rod one is retracted into the mounting box by the elasticity of spring one. Spring two applies elastic force to stroke rod two through mounting seat two, so that when the conical block contacts and presses against stroke rod two, stroke rod two is retracted into the mounting box by the elasticity of spring two.

[0018] Furthermore, a vacuum frame is provided between the card plates, a composite polyurethane foam layer is filled between the card plates, and an outer layer is sleeved on the outside of the aluminum alloy profile box card plate;

[0019] Specifically, a composite polyurethane foam layer is filled between the card plates to improve insulation, the gaps between structural components are filled and connected, and the outer layer prevents the aluminum alloy profile from being exposed to the outside, forming the surface of the refrigerator's aluminum alloy frame.

[0020] 2. Beneficial effects

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] This invention uses four aluminum alloy profiles spliced ​​together to form a frame structure. These four profiles are fixed using suitable tooling fixtures. Then, a mounting box is inserted at a 90-degree right angle into the four inner corners of the aluminum alloy frame formed by the four profiles. Rotating the screw causes the threaded screw holes to press against the guide cone blocks. These cone blocks press out positioning rods one and two from the mounting box and insert them into positioning holes one and two that are not perpendicular to the mounting box. When all four mounting boxes are connected to the aluminum alloy profiles via travel rods one and two, the angled positioning rods one and two form a locking structure at the four corners. Furthermore, the angled positioning holes one and two, when pressed, push the aluminum alloy profiles to move relative to each other, ensuring a tight fit at the joints. This eliminates the need for additional installation tools and avoids the cumbersome and time-consuming process of connecting the refrigerator's aluminum alloy frame with screws and welding, significantly improving the ease of assembly.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.

[0025] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a top-section perspective view of the mounting box of this utility model.

[0027] Figure 3 This is a top-section sectional view of the mounting box of this utility model from a second angle, showing its three-dimensional structure.

[0028] Figure 4 For the present utility model Figure 3 A top-section sectional view of the three-dimensional structure of the mounting box.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Aluminum alloy profile; 2. Mounting box; 3. Clamping plate; 4. Outer layer; 5. Positioning hole one; 6. Positioning hole two; 7. Screw; 8. Vacuum frame; 9. Bearing seat; 10. Conical block; 11. Torque block; 12. Connecting groove; 13. Stroke hole one; 14. Positioning rod one; 15. Spring one; 16. Ball bearing one; 17. Stroke hole two; 18. Spring two; 19. Positioning rod two; 20. Ball bearing two; 21. Slide groove; 22. Guide rail; 23. Ball bearing; 24. Screw hole. Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0035] Example 1

[0036] Please see Figure 1-4 As shown, this embodiment is a refrigerator aluminum alloy frame with good heat insulation performance, including an aluminum alloy frame, a mounting box 2, a screw 7, a positioning rod 14 and a positioning rod 19. The aluminum alloy frame composed of aluminum alloy profiles 1 is provided with mounting boxes 2 at the four corners. The aluminum alloy profiles 1 are provided with positioning holes 1 5 and 2 6 that are not perpendicular to the mounting box 2. A ball bearing 23 is embedded in the mounting box 2. The screw 7 is rotatably installed in the ball bearing 23. A conical block 10 with a conical outer wall is provided in the mounting box 2. The conical block 10 is provided with a screw hole 24 that is threaded and installed with the outer wall of the screw 7. A stroke hole 13 corresponding to the positioning hole 1 5 is provided in the mounting box 2. A stroke hole 2 17 corresponding to the positioning hole 2 6 is provided in the mounting box 2. The positioning rod 14 is slidably installed in the stroke hole 13. The positioning rod 2 19 is slidably installed in the positioning hole 2 6.

[0037] A bearing seat 9 is rotatably mounted on one side of the inner wall of the mounting box 2. One end of the screw 7 is rotatably mounted inside the bearing seat 9. A torsion block 11 is provided on one end of the screw 7.

[0038] The lower inner wall of the mounting box 2 is provided with a guide rail 22, and the lower inner wall of the cone block 10 is provided with a sliding groove 21, which is slidably sleeved on the outer wall of the guide rail 22.

[0039] The positioning rod 14 is provided with a mounting seat 1, and a ball bearing 16 is rotatably installed inside the mounting seat 1. The positioning rod 29 is provided with a mounting seat 2, and a ball bearing 20 is rotatably installed inside the mounting seat 2.

[0040] One end of the mounting base is provided with a spring 15 that is connected to the inner wall of the mounting box 2 and sleeved on the outside of the positioning rod 14; one end of the mounting base is provided with a spring 18 that is connected to the inner wall of the mounting box 2 and sleeved on the outside of the positioning rod 19.

[0041] In this embodiment, firstly, four aluminum alloy profiles 1 that meet the design requirements are prepared. The four aluminum alloy profiles 1 are initially fixed into a frame shape using appropriate tooling fixtures to ensure accurate splicing positions between the profiles and prepare for subsequent installation. The mounting box 2 is precisely snapped into the four inner corners of the aluminum alloy frame formed by the four aluminum alloy profiles 1 at a 90-degree right angle. After completing the above steps, the screw 7 inside the mounting box 2 is rotated. One end of the screw 7 is rotated and installed inside the bearing seat 9. By gripping the torsion block 11 at one end of the screw 7, a suitable rotational force is applied to make the screw 7 rotate stably inside the mounting box 2. Since the screw 7 is threadedly connected to the screw hole 24 inside the conical block 10, as the screw 7 rotates, it will exert a squeezing effect on the conical block 10 through the threaded engagement. The lower end of the conical block 10 slides on the outer wall of the guide rail 22 on the inner wall of the lower end of the mounting box 2 through the sliding groove 21. Under the sliding guidance, the conical block 10 moves smoothly.

[0042] During the movement of the conical block 10, positioning rod 14 and positioning rod 2 19 are squeezed respectively. Under the squeezing of the conical block 10, positioning rod 14 and positioning rod 2 19 overcome the elastic force of the spring and move out of the mounting box 2 along the stroke hole 13 and stroke hole 2 17 respectively, and insert into the interior of the aluminum alloy profile 1, which is not perpendicular to the mounting box 2, positioning hole 5 and positioning hole 2 6. Roller ball 16 and roller ball 20 roll and fit against the outer wall of the conical block 10, reducing the resistance and friction of the conical block 10 during squeezing. After all four sets of mounting boxes 2 are inserted into the aluminum alloy profile 1 through positioning rod 14 and positioning rod 2 19, because positioning hole 15 and positioning hole 2 6 are designed with a slope, the slope will push the aluminum alloy profile 1 to move relative to each other during the squeezing process, making the joint of the aluminum alloy profile 1 more secure, thus forming a stable locking structure at the four corners, completing the assembly of the entire refrigerator aluminum alloy frame;

[0043] It avoids the tedious and time-consuming traditional screw and welding connection methods. No additional installation tools are required. The frame can be assembled by simply turning the screw 7, which greatly improves the assembly efficiency and reduces labor costs. The angled insertion positioning rod 14 and positioning rod 29 form a locking structure at the four corners, which can ensure that the aluminum alloy profile 1 is firmly connected, effectively preventing the frame from loosening or deforming during use, and ensuring the overall stability of the refrigerator frame.

[0044] This invention solves the problem of cumbersome and time-consuming installation caused by the use of screws or welding connections in the assembly process of traditional refrigerator aluminum alloy frames, making the assembly process of aluminum alloy profile 1 more convenient and efficient.

[0045] Example 2

[0046] Please see Figure 1-4As shown, the outer wall of the mounting box 2 is provided with two sets of symmetrically distributed docking grooves 12, and the aluminum alloy profiles 1 are provided with symmetrically distributed clamping plates 3 that slide into the docking grooves 12 at their edges and corners.

[0047] A vacuum frame 8 is set between the card plates 3, and a composite polyurethane foam layer is filled between the card plates 3. An outer layer 4 is sleeved on the outside of the aluminum alloy profile 1 and the card plates 3.

[0048] In this embodiment, the outer wall of the mounting box 2 has two sets of symmetrically distributed mating grooves 12. During the snap-fit ​​process, one of the clamping plates 3 is slidably inserted into the mating groove 12, and the clamping plate 3 is supported on the processing table. The mating groove 12 is used to constrain the corners of the clamping plate 3, thereby achieving the initial positioning of the clamping plate 3. The vacuum frame 8 is located on the clamping plate 3, and the bonding surface is filled with a layer of composite polyurethane foam. After the mounting box 2 is fixed, a layer of composite polyurethane foam is sprayed on the upper end of the vacuum frame 8. Then, the other clamping plate 3 is installed in the mating groove located between the mounting boxes 2 at the upper end. In step 12, a vacuum frame 8 is installed between the card plates 3. Then, a composite polyurethane foam layer is filled between the card plates 3 to completely fill the gap. The composite polyurethane foam layer has good thermal insulation performance, which can effectively fill the gap between the card plates 3, enhance the thermal insulation of the entire frame structure, and make the structural components tightly connected. After the filling is completed, the outer layer 4 is fitted onto the outside of the aluminum alloy profile 1 and the card plates 3. The outer layer 4 not only plays a protective role, preventing the aluminum alloy profile 1 from being exposed to the external environment, but also forms a beautiful surface of the refrigerator aluminum alloy frame.

[0049] The refrigerator's aluminum alloy frame is based on the principles of mechanical locking and heat insulation filling. Through the threaded transmission between the screw 7 and the conical block 10, the conical block 10 is moved and squeezed, thereby pushing the positioning rod 14 and the positioning rod 19 into the positioning holes of the aluminum alloy profile 1. By using the inclined insertion and squeezing action, the aluminum alloy profile 1 is fastened to each other to form a stable frame structure. At the same time, the filling of the composite polyurethane foam layer and the setting of the vacuum frame 8 effectively reduce heat transfer, reduce the risk of cold leakage, effectively block the heat transfer path, and improve the heat insulation performance of the frame.

[0050] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A refrigerator aluminum alloy frame with good heat insulation performance, characterized in that: The assembly includes an aluminum alloy profile (1), a mounting box (2), a screw (7), a positioning rod one (14), and a positioning rod two (19). Mounting boxes (2) are provided at the four corners of the aluminum alloy frame formed by the aluminum alloy profile (1). Positioning holes one (5) and two (6) not perpendicular to the mounting box (2) are provided inside the aluminum alloy profile (1). A ball bearing (23) is embedded inside the mounting box (2), and a screw (7) is rotatably mounted inside the ball bearing (23). The mounting box (2) has a conical block (10) with a conical outer wall inside. The conical block (10) has a screw hole (24) inside that is threaded to the outer wall of the screw (7). The mounting box (2) has a stroke hole (13) inside that corresponds to the positioning hole (5). The mounting box (2) has a stroke hole (17) inside that corresponds to the positioning hole (6). A positioning rod (14) is slidably installed inside the stroke hole (13). A positioning rod (19) is slidably installed inside the positioning hole (6).

2. The refrigerator aluminum alloy frame with good heat insulation performance according to claim 1, characterized in that: The outer wall of the mounting box (2) is provided with two sets of symmetrically distributed docking grooves (12), and the aluminum alloy profiles (1) are provided with symmetrically distributed card plates (3) that are slidably inserted into the docking grooves (12) at the edges and corners.

3. The refrigerator aluminum alloy frame with good heat insulation performance according to claim 1, characterized in that: The mounting box (2) has a bearing seat (9) rotatably mounted on one side of its inner wall. One end of the screw (7) is rotatably mounted inside the bearing seat (9). One end of the screw (7) is provided with a torsion block (11).

4. The refrigerator aluminum alloy frame with good heat insulation performance according to claim 1, characterized in that: The lower inner wall of the mounting box (2) is provided with a guide rail (22), and the lower inner wall of the cone block (10) is provided with a sliding groove (21), which is slidably sleeved on the outer wall of the guide rail (22).

5. The refrigerator aluminum alloy frame with good heat insulation performance according to claim 1, characterized in that: The positioning rod (14) is provided with a mounting seat, and a ball bearing (16) is rotatably installed inside one end of the mounting seat. The positioning rod (19) is provided with a mounting seat, and a ball bearing (20) is rotatably installed inside one end of the mounting seat.

6. The refrigerator aluminum alloy frame with good heat insulation performance according to claim 5, characterized in that: One end of the mounting base is provided with a spring (15) that is connected to the inner wall of the mounting box (2) and sleeved on the outside of the positioning rod (14). One end of the mounting base is provided with a spring (18) that is connected to the inner wall of the mounting box (2) and sleeved on the outside of the positioning rod (19).

7. The refrigerator aluminum alloy frame with good heat insulation performance according to claim 2, characterized in that: A vacuum frame (8) is provided between the card plates (3), and a composite polyurethane foam layer is filled between the card plates (3). An outer jacket layer (4) is sleeved on the outside of the aluminum alloy profile (1) and the card plates (3).

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