Protective structure and refrigeration equipment

Abstract

The utility model discloses a protection structure and refrigeration equipment, and the protection structure comprises a limiting device which is installed on a fixing part, and the limiting device comprises a containing cavity and a plunger latch assembly used for opening or closing the containing cavity; the anti-disengaging device is installed on the movable part and comprises a locking limiting block used for pushing the plunger latch assembly to be opened. The plunger latch assembly is reset and closed after the locking limiting block enters the containing cavity, so that the locking limiting block is limited in the containing cavity. Stable protection is provided for the movable part through the limiting device and the anti-disengaging device which are matched with each other, use is convenient and fast, and fixation is reliable.

Description

Technical Field

[0001] This utility model relates to the field of home appliances, and in particular to protective structures and refrigeration equipment. Background Technology

[0002] In the home appliance industry, many products feature movable parts (movable components) and fixed housing structures (fixed components), such as oven baking trays, washing machine drums, and microwave oven turntables. These movable parts typically need to be detachable or adjustable to meet usage requirements, but must also remain securely fixed during transportation to prevent damage. Currently, the industry's methods for securing movable parts generally suffer from problems such as insecure fixing and inconvenient disassembly and assembly, issues that are particularly prominent in large home appliances.

[0003] Taking refrigerators as an example, they typically have glass shelves as movable components. With the increasing demand for large-capacity refrigerators, the size and weight of these shelves are constantly increasing, making the issue of securing them during transportation particularly prominent. Currently, the industry commonly uses cushioning materials such as sponge, foam, or tape to secure the glass shelves. However, this method has the following technical drawbacks:

[0004] 1. The fixing methods are complex and costly. Traditional protective solutions usually require manual pasting or wrapping of cushioning materials, which is not only cumbersome but also increases production costs. In addition, foam or sponge materials are prone to aging and falling off, and may fail during long-term transportation or in extreme environments, resulting in unstable protective effects.

[0005] 2. Difficulty in meeting transportation testing requirements: In laboratory tests simulating transportation environments (such as drops, vibrations, and other harsh conditions), existing protective methods often fail to effectively secure large, heavy glass shelves, leading to frequent issues such as shelf detachment and broken liner. This is especially true for wider refrigerators, whose large and heavy shelves make internal packaging and protection even more difficult, exacerbating transportation risks.

[0006] 3. If the glass shelf becomes loose or broken during transportation, it will not only increase after-sales maintenance costs, but may also affect users' trust in the product.

[0007] Therefore, how to design a protective structure that is easy to install and reliably fixed is a technical problem that the industry urgently needs to solve. Utility Model Content

[0008] To address the shortcomings of existing technologies in securing and protecting moving parts, this invention proposes a protective structure and a cooling device. By utilizing mutually cooperating limiting devices and anti-detachment devices, it provides stable protection for moving parts, making it convenient to use and ensuring reliable fixation.

[0009] The technical solution adopted by this utility model is to design a protective structure, including:

[0010] A limiting device, which is mounted on a fixing member, includes: a receiving cavity and a latch assembly for opening or closing the receiving cavity;

[0011] An anti-disengagement device, mounted on a movable part, includes: a locking limit block for pushing the latch assembly open;

[0012] The latch assembly is reset and closed after the locking limit block enters the receiving cavity, thereby confining the locking limit block within the receiving cavity.

[0013] Furthermore, the latch assembly includes: two wedge-shaped latches disposed opposite each other, and two latch springs for forcing the two wedge-shaped latches to reset and close, wherein the latch assembly is pushed open along the ramp of the two wedge-shaped latches when the locking limit block enters the receiving cavity.

[0014] Furthermore, the locking limit block has a first wedge-shaped surface at the end away from the moving part; wherein, when the locking limit block enters the receiving cavity, the first wedge-shaped surface is engaged with two wedge-shaped latches.

[0015] Furthermore, the anti-disengagement device also includes: a connecting rod and an unlocking limit block for pushing the latch assembly open. The locking limit block is fixed on the connecting rod, and the unlocking limit block is movably sleeved on the connecting rod. The unlocking limit block can move between the movable part and the locking limit block. The end of the unlocking limit block away from the locking limit block is provided with a second wedge-shaped surface, and the end of the unlocking limit block near the locking limit block is provided with a contact surface that can cover the locking limit block. When the unlocking limit block enters the receiving cavity, it pushes open the latch assembly along the inclined surfaces of the two wedge-shaped latches. When the unlocking limit block exits the receiving cavity, it pushes open the latch assembly by relying on the second wedge-shaped surface.

[0016] Furthermore, the anti-detachment device also includes: a supporting elastic member abutting between the locking limit block and the unlocking limit block, wherein the locking limit block and / or the unlocking limit block are provided with grooves, and the supporting elastic member is accommodated in the grooves after being squeezed, so that the contact surface can fit against the locking limit block.

[0017] Furthermore, the limiting device also includes a limiting pin that is controlled to extend into or out of the receiving cavity, the receiving cavity being divided into two regions when the limiting pin extends into it, the region between the limiting pin and the latch assembly being a limiting cavity, the limiting cavity being used to position and lock the limiting block.

[0018] Furthermore, the limiting device also includes an electrically controlled elastic element, the movable end of which is connected to a limiting pin, and the limiting pin is moved by switching the energized state of the electrically controlled elastic element.

[0019] Furthermore, the protective structure also includes: a detection component having a temperature sensor for detecting the actual temperature of the moving part and / or a pressure sensor for detecting the actual pressure of the limit pin; wherein the movement state of the limit pin is controlled by the detection signal of the detection component.

[0020] This utility model also proposes a refrigeration device that adopts the above-mentioned protective structure.

[0021] In some embodiments, the refrigeration device is a refrigerator, the fixed component is the cabinet, and the movable component is a shelf.

[0022] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0023] 1. A limiting device is set on the fixed part and an anti-detachment device is set on the moving part. After the locking limiting block pushes open the latch assembly and enters the receiving cavity of the limiting device, the latch assembly resets and closes to restrict the locking limiting block in the receiving cavity. The mutually cooperating limiting device and anti-detachment device provide stable protection for the moving part. The existing box liner limiting ribs are eliminated, making the box liner structure simpler and the box body foaming quality better.

[0024] 2. The anti-detachment device is also equipped with an unlocking limit block. When the anti-detachment device moves inward with the moving part, the unlocking limit block pushes open the latch assembly and enters the receiving cavity of the limit device. Both the unlocking limit block and the locking limit block are in the receiving cavity. When the anti-detachment device moves outward with the moving part, the unlocking limit block pushes open the latch assembly by the second wedge surface, and the locking limit block follows the unlocking limit block out of the receiving cavity, so as to easily remove the moving part.

[0025] 3. The limiting device is also equipped with a movable limiting pin. When the limiting pin extends into the receiving cavity, it positions the locking limiting block in the limiting cavity to prevent the locking limiting block from shaking and to fix the moving part stably. When the limiting pin exits the receiving cavity, it cancels the limiting effect and leaves room for the movement of the locking limiting block, so that the unlocking limiting block can push open the latch assembly and enter the receiving cavity. Users can easily operate and disassemble the moving part. Attached Figure Description

[0026] The present invention will now be described in detail with reference to the embodiments and accompanying drawings, wherein:

[0027] Figure 1 This is a three-dimensional schematic diagram of the interior of the refrigerator according to this utility model;

[0028] Figure 2 This is a schematic diagram of the internal side of the refrigerator according to this utility model;

[0029] Figure 3 This is a schematic diagram of the shelf of this utility model;

[0030] Figure 4This is a schematic diagram of the limiting device of this utility model;

[0031] Figure 5 This is a schematic diagram of the anti-detachment device of this utility model;

[0032] Figure 6 This is a disassembled schematic diagram of the anti-detachment device of this utility model;

[0033] Figures 7a to 7c This is a schematic diagram of the installation process of this utility model;

[0034] Figure 8 This is a disassembly diagram of the present invention; Attached image description:

[0036] 1. Limiting device; 2. Anti-detachment device; 3. Fixing component; 31. Shelf mounting area; 4. Movable component; 41. Rear decorative strip; 42. Glass body;

[0037] 10. Receiving cavity; 11. Electrically controlled elastic element; 12. First latch spring; 13. Second latch spring; 14. First wedge latch; 15. Second wedge latch; 16. Limit pin; 17. Mounting box;

[0038] 211. Locking limit block; 212. Support elastic element; 213. Connecting rod; 214. Unlocking limit block; 215. Screw. Detailed Implementation

[0039] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0040] like Figures 1 to 3 As shown, the protective structure proposed in this utility model is suitable for the installation and fixing between the fixed part 3 and the movable part 4. It is commonly used in household appliances and other application scenarios, such as refrigerators. The refrigerator usually has a glass shelf as a typical movable part. During transportation and testing, the glass shelf needs to be fixed to the cabinet to avoid problems such as the shelf falling off or the cabinet liner breaking.

[0041] like Figures 4 to 6As shown, specifically, the protective structure includes a limiting device 1 mounted on the fixed member 3 and an anti-detachment device 2 mounted on the movable member 4. The limiting device 1 includes a mounting box 17 and a latch assembly. The mounting box 17 has a receiving cavity 10 with an opening on the side of the receiving cavity 10 near the movable member 4. The latch assembly is used to open or close the opening of the receiving cavity 10. The anti-detachment device 2 includes a locking limiting block 211, which is used to push the latch assembly open so that the locking limiting block 211 can enter the receiving cavity 10. After the locking limiting block 211 enters the receiving cavity 10, the latch assembly resets and closes, restricting the locking limiting block 211 within the receiving cavity 10, effectively preventing the locking limiting block 211 from detaching from the receiving cavity 10 during transportation, thus achieving reliable installation of the fixed member 3 and the movable member 4.

[0042] like Figures 1 to 3 As shown, taking a refrigerator as an example, the fixed component 3 is the cabinet body, and the movable component 4 is the shelf. The shelf includes a glass body 42, a front decorative strip clamped to the front of the glass body 42, and a rear decorative strip clamped to the rear. The cabinet body has a shelf mounting area 31 for placing the shelf. The limiting device 1 is fixed to the inside of the shelf mounting area 31, and the anti-detachment device 2 is installed on the rear decorative strip 41. The positions of the limiting device 1 and the anti-detachment device 2 correspond. The protective structure of this utility model can provide stable protection for the movable component 4 by using the mutually cooperating limiting device 1 and anti-detachment device 2, eliminating the existing cabinet liner limiting ribs, making the cabinet liner structure simpler, and optimizing the foaming quality of the cabinet body.

[0043] The type of latch assembly can be selected according to the actual use. Electrical or mechanical opening and closing methods are both feasible. The following describes the preferred embodiment of this utility model.

[0044] like Figure 4 As shown, the latch assembly includes two wedge-shaped latches and two latch springs. The two wedge-shaped latches are a first wedge-shaped latch 14 and a second wedge-shaped latch 15, and the two latch springs are a first latch spring 12 and a second latch spring 13. The two wedge-shaped latches are arranged opposite each other and move in opposite directions. The two latch springs are respectively supported on the opposite ends of the two wedge-shaped latches.

[0045] like Figure 7a , 7b As shown, when the locking limit block 211 enters the receiving cavity 10, it pushes open the latch assembly along the inclined surfaces of the first wedge latch 14 and the second wedge latch 15, and the first latch spring 12 and the second latch spring 13 are compressed. Figure 7cAs shown, after the locking limit block 211 enters the receiving cavity 10 of the limiting device 1, the first latch spring 12 and the second latch spring 13 provide a restoring force, forcing the first wedge latch 14 and the second wedge latch 15 to reset and close, thus confining the locking limit block 211 within the receiving cavity 10. This design utilizes double wedge-shaped inclined surfaces to achieve easy unlocking with a clear tactile feedback. It can maintain stable locking and controllable separation even in harsh transportation environments, and has multiple advantages such as simple structure, convenient installation, and high reliability.

[0046] As an optimization, such as Figure 4 As shown, the locking limit block 211 has a first wedge-shaped surface at the end away from the movable member 4, that is, the locking limit block 211 has a first wedge-shaped surface at the end facing the latch assembly. When the locking limit block 211 enters the receiving cavity 10, the first wedge-shaped surface fits against the first wedge-shaped latch 14 and the second wedge-shaped latch 15. This design utilizes the complementary contact between the first wedge-shaped surface of the locking limit block 211 and the inclined surface of the wedge-shaped latch to make the thrust generated by the inward movement of the locking limit block 211 more evenly distributed, and to more smoothly push the first wedge-shaped latch 14 and the second wedge-shaped latch 15 to open.

[0047] like Figure 5 , 6 As shown, based on the preferred embodiment, the anti-detachment device 2 further includes: a connecting rod 213 and an unlocking limit block 214. The first end of the connecting rod 213 is fixed to the movable member 4 by screws, and the second end of the connecting rod 213 extends toward the receiving cavity 10. The locking limit block 211 is fixed to the second end of the connecting rod 213. The unlocking limit block 214 is movably sleeved on the connecting rod 213, and the unlocking limit block 214 can move between the movable member 4 and the locking limit block 211. The function of the unlocking limit block 214 is to push the latch assembly open. The latch assembly can be opened during the process of the unlocking limit block 214 entering and exiting the receiving cavity 10.

[0048] Specifically, the unlocking limit block 214 has a second wedge-shaped surface at the end away from the locking limit block 211, and a contact surface at the end of the unlocking limit block 214 close to the locking limit block 211. The contact surface can cover the locking limit block 211, that is, the edge of the contact surface exceeds the locking limit block 211 or the edge of the contact surface is flush with the locking limit block 211, so as to ensure that when the unlocking limit block 214 exits the receiving cavity 10 outward, the locking limit block 211 can exit the receiving cavity 10 together with the unlocking limit block 214 and will not be intercepted by the latch assembly.

[0049] like Figure 8As shown, during the disassembly of the movable part, the user pushes the movable part 4 inward. As the anti-detachment device 2 moves inward with the movable part 4, the unlocking limit block 214 pushes open the latch assembly along the inclined surfaces of the two wedge-shaped latches and enters the receiving cavity 10 of the limiting device 1. At this time, both the unlocking limit block 214 and the locking limit block 211 are inside the receiving cavity 10. When the user pulls the movable part 4 outward, as the anti-detachment device 2 moves outward with the movable part 4, the unlocking limit block 214 pushes open the latch assembly using its own second wedge-shaped surface, and the locking limit block 211 exits the receiving cavity 10 along with the unlocking limit block 214. This design is ingenious, allowing the movable part 4 to be easily removed through two simple actions: a push and a pull.

[0050] Based on the design of the unlocking limit block, such as Figure 5 , 6 As shown, as an optimization, the anti-detachment device 2 further includes: a supporting elastic element 212, which is sleeved on the connecting rod 213 and abuts against the locking limit block 211 and the unlocking limit block 214. The locking limit block 211 and / or the unlocking limit block 214 are provided with grooves. After being compressed, the supporting elastic element 212 is accommodated in the grooves so that the contact surface can fit against the locking limit block 211. The supporting elastic element 212 can be a spring. Typically, both the locking limit block 211 and the unlocking limit block 214 are provided with grooves. After being compressed, part of the supporting elastic element 212 is accommodated in the groove of the unlocking limit block 214, and the other part is accommodated in the groove of the locking limit block 211.

[0051] In its natural state, the support elastic element 212 forces the locking limit block 211 and the unlocking limit block 214 to remain separated. During the installation of the movable part 4, the unlocking limit block 214 will not enter the receiving cavity 10, thus avoiding interference with the normal locking of the locking limit block 211. In its compressed state, the support elastic element 212 is fully accommodated in the groove, and the locking limit block 211 is attached to the contact surface of the unlocking limit block 214, so that the locking limit block 211 can exit the receiving cavity 10 together with the unlocking limit block 214 without being intercepted by the latch assembly.

[0052] like Figure 4As shown, in some feasible embodiments of this utility model, the limiting device 1 further includes a limiting pin 16, which is controlled to extend into or retract from the receiving cavity 10. The receiving cavity 10 is divided into two regions when the limiting pin 16 extends into it. The region between the limiting pin 16 and the latch assembly is the limiting cavity, which is used to position and lock the limiting block 211. When the locking limiting block 211 pushes open the latch assembly and enters the receiving cavity 10, the first wedge latch 14 and the second wedge latch 15 are reset and closed. The limiting pin 16 extends into the receiving cavity 10 to block the locking limiting block 211 from continuing to move. The locking limiting block 211 is clamped between the limiting pin 16 and the latch assembly to prevent the locking limiting block 211 from shaking, so that the movable part 4 is stably fixed. In the preferred embodiment of the design of the unlocking limit block 214, the limiting pin 16 cancels the limiting effect when it exits the receiving cavity 10, leaving room for the movement of the locking limit block 211, so that the unlocking limit block 214 can push open the latch assembly and enter the receiving cavity 10, and the user can easily operate and disassemble the movable part 4.

[0053] The driving method of the limit pin 16 can be selected according to the actual use situation. It can be driven by electric control or mechanical drive, etc. The following describes the feasible embodiment of this utility model.

[0054] like Figure 4 As shown, the limiting device also includes an electrically controlled elastic element 11, which can be an electromagnetic spring or similar device. The movable end of the electrically controlled elastic element 11 is connected to the limiting pin 16. By switching the energized state of the electrically controlled elastic element 11, the limiting pin 16 is pushed to move; for example, the electrically controlled elastic element 11 extends when de-energized and compresses when energized. This design achieves active extension and retraction control of the limiting pin through the switching of the electrically controlled elastic element, enabling rapid locking / unlocking in a non-contact state, combining mechanical reliability with the convenience of electronic operation.

[0055] To more accurately control the limiting pin 16 to accommodate the installation and removal of the movable part 4, the protective structure further includes a detection assembly having a temperature sensor for detecting the actual temperature of the movable part 4 and / or a pressure sensor for detecting the actual pressure of the limiting pin 16. The temperature sensor is disposed on the movable part 4, preferably in a gripping area where the user pushes to operate the movable part 4. The pressure sensor is disposed on the limiting pin 16, and the movement of the limiting pin 16 is controlled by the detection signal from the detection assembly. Typically, the detection assembly includes both a temperature sensor and a pressure sensor, and controls the insertion or withdrawal of the limiting pin 16 into or out of the receiving cavity 10 based on the signals from the temperature sensor and the pressure sensor.

[0056] The following describes the working process of the protective structure in detail using an application example of this utility model. The movable part 4 is a shelf, and the fixed part 3 is a box. The box is provided with a shelf mounting area 31 for placing the shelf. The limiting device 1 is fixed on the inner side of the shelf mounting area 31, and the anti-detachment device 2 is installed on the rear side of the shelf. The positions of the limiting device 1 and the anti-detachment device 2 correspond.

[0057] like Figure 7a , 7b As shown, during the installation of the shelf, the shelf is placed on the shelf installation area 31 and pushed inward. The locking limit block 211 gradually pushes open the first wedge-shaped latch 14 and the second wedge-shaped latch 15, as shown. Figure 7c As shown, when the locking limit block 211 enters the receiving cavity 10, the first wedge latch 14 and the second wedge latch 15 are reset and closed. The limit pin 16 is controlled to extend into the receiving cavity 10 to block the locking limit block 211 from continuing to move. The locking limit block 211 is clamped between the limit pin 16 and the latch assembly. The locking limit block 211 cannot move back and forth, so that the shelf is stably fixed on the shelf mounting area 31.

[0058] like Figure 7c As shown, when the shelf needs to be disassembled, the user first pushes the shelf into the box. The temperature sensor detects the human body temperature, and the pressure sensor detects that the limit pin 16 is under pressure towards the inside of the box. The limit pin 16 is controlled to exit the receiving cavity 10, pushing the shelf into the box until the unlocking limit block 214 pushes open the latch assembly and enters the receiving cavity 10 of the limiting device 1. At this time, the unlocking limit block 214 and the locking limit block 211 are both in the receiving cavity 10. The user then pulls the shelf outward. The unlocking limit block 214 pushes open the first wedge latch 14 and the second wedge latch 15 with its own second wedge surface. The locking limit block 211 follows the unlocking limit block 214 out of the receiving cavity 10, and the shelf can be easily removed.

[0059] like Figure 1 , 2 As shown, this utility model also proposes a refrigeration device, which includes but is not limited to a refrigerator. The above-mentioned protective structure can provide stable protection for moving parts by using mutually cooperating limiting devices and anti-detachment devices, which is convenient to use and reliable in fixing.

[0060] It should be noted that the terminology used above is for describing specific embodiments only and is not intended to limit the exemplary embodiments according to this utility model. When the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. The order of execution of actions, steps, etc., in the apparatus and methods shown in the specification and drawings can be implemented in any order unless a specific express order is specified, and as long as the output of the preceding process is not used in the subsequent process. Similar sequential terms used for ease of description do not imply that such an order must be followed.

[0061] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective structure, characterized in that, include: A limiting device, which is mounted on a fixing member, the limiting device comprising: a receiving cavity and a latch assembly for opening or closing the receiving cavity; An anti-disengagement device, mounted on a movable part, the anti-disengagement device comprising: a locking limit block for pushing the latch assembly open; The latch assembly is reset and closed after the locking limit block enters the receiving cavity, thereby confining the locking limit block within the receiving cavity.

2. The protective structure according to claim 1, characterized in that, The latch assembly includes two opposing wedge-shaped latches and two latch springs for forcing the two wedge-shaped latches to reset and close, wherein the locking stop block pushes the latch assembly open along the ramps of the two wedge-shaped latches when it enters the receiving cavity.

3. The protective structure according to claim 2, characterized in that, The locking limit block has a first wedge-shaped surface at one end away from the movable part; wherein, when the locking limit block enters the receiving cavity, the first wedge-shaped surface is engaged with the two wedge-shaped latches.

4. The protective structure according to claim 2, characterized in that, The anti-disengagement device further includes: a connecting rod and an unlocking limiting block for pushing the latch assembly open. The locking limiting block is fixed on the connecting rod, the unlocking limiting block is movably sleeved on the connecting rod, and the unlocking limiting block can move between the movable member and the locking limiting block. The end of the unlocking limiting block away from the locking limiting block is provided with a second wedge-shaped surface, and the end of the unlocking limiting block near the locking limiting block is provided with a contact surface, which can cover the locking limiting block. When the unlocking limiting block enters the receiving cavity, it pushes open the latch assembly along the inclined surfaces of the two wedge-shaped latches; when the unlocking limiting block exits the receiving cavity, it pushes open the latch assembly by relying on the second wedge-shaped surface.

5. The protective structure according to claim 4, characterized in that, The anti-detachment device further includes: a supporting elastic member abutting between the locking limit block and the unlocking limit block, wherein the locking limit block and / or the unlocking limit block are provided with a groove, and the supporting elastic member is accommodated in the groove after being squeezed, so that the contact surface can fit the locking limit block.

6. The protective structure according to any one of claims 1 to 5, characterized in that, The limiting device further includes a limiting pin that is controlled to extend into or retract from the receiving cavity. The receiving cavity is divided into two regions when the limiting pin extends into it. The region between the limiting pin and the latch assembly is a limiting cavity, which is used to position the locking limiting block.

7. The protective structure according to claim 6, characterized in that, The limiting device further includes an electrically controlled elastic element, the movable end of which is connected to the limiting pin, and the limiting pin is moved by switching the energized state of the electrically controlled elastic element.

8. The protective structure according to claim 6, characterized in that, The protective structure further includes: a detection component having a temperature sensor for detecting the actual temperature of the moving part and / or a pressure sensor for detecting the actual pressure of the limit pin; The movement state of the limiting pin is controlled by the detection signal of the detection component.

9. A refrigeration device, characterized in that, The refrigeration equipment adopts the protective structure described in any one of claims 1 to 8.

10. The refrigeration equipment according to claim 9, characterized in that, The refrigeration equipment is a refrigerator, the fixed component is the cabinet, and the movable component is a shelf.

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