Refrigerator sealing structure

Abstract

The utility model discloses a refrigerator sealing structure which comprises a sealing door, a rolling limiting assembly and a limiting stop assembly. Rolling limiting assemblies are arranged on the sealing door, the rolling limiting assemblies are arranged on limiting and stopping assemblies, the rolling limiting assemblies can roll on the limiting and stopping assemblies, the limiting and stopping assemblies can limit and stop the rolling limiting assemblies, and multiple rolling limiting assemblies and multiple limiting and stopping assemblies can be arranged. The refrigerator has the advantages that the sliding type sealing door is in sliding fit with the rolling limiting assembly and the limiting stop assembly, the interior and the exterior of the refrigerator are isolated, the low-temperature environment in the refrigerator is guaranteed, compared with a rotary opening and closing door of a traditional refrigerator, the sliding door is lower in space requirement rate, the use area is saved, and meanwhile the sliding door is pushed by power and is convenient to use. Compared with a rotating door which only depends on a magnetic attraction attaching mode, the rotating door is tighter.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sample storage, in particular to a refrigerator sealing structure. Background Art

[0002] Low-temperature refrigerators used to store biological samples such as cells and blood have high requirements for the stability of the low-temperature environment inside the refrigerator. Large temperature changes can easily inactivate biological samples. Therefore, it is necessary to minimize the gas exchange inside and outside the refrigerator. Conventional refrigerators use fan-shaped rotating doors. The door opening and closing movement trajectory requires a larger space, and the door is closed by magnetic attraction, which has poor sealing. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the above problems or problems existing in the prior art, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a refrigerator sealing structure, which adopts a sliding sealing door, reduces the floor space, and has a better sealing effect. The rolling door assembly can reduce the contact area of the gas inside and outside the refrigerator and reduce the temperature difference of the internal low-temperature environment.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a refrigerator sealing structure, which includes a sealing door, a rolling limit assembly, and a limit stop assembly; a rolling limit assembly is provided on the sealing door, and the rolling limit assembly is provided on the limit stop assembly. The rolling limit assembly can roll on the limit stop assembly, and the limit stop assembly can limit and stop the rolling limit assembly. The rolling limit assembly and the limit stop assembly can be provided in multiple groups.

[0007] As a preferred solution of the refrigerator sealing structure of the utility model, wherein: the rolling limit assembly includes a rotating wheel member and a slider stop member; one side of the rotating wheel member is connected to the slider stop member, the rotating wheel member can rotate on the sealing door, and the slider stop member can rotate on the rotating wheel member; the rotating wheel member can move along the limit stop assembly, and the limit stop assembly can limit and fix the slider stop member.

[0008] As a preferred solution of the refrigerator sealing structure of the present invention, a limiting member is provided on the rotating running wheel member, and the limiting member can limit the rotation of the rotating running wheel member.

[0009] As a preferred solution of the refrigerator sealing structure of the utility model, the rotating wheel component includes a first rotating shaft, a support shaft, and a wheel; one end of the first rotating shaft is connected to the sealing door, and the other end is connected to the support shaft, and a wheel is provided on the support shaft, and the support shaft can rotate around the first rotating shaft.

[0010] As a preferred solution of the refrigerator sealing structure of the utility model, the slider stopper includes a second rotating shaft and a slider; one end of the second rotating shaft is set on the support shaft, and the other end of the second rotating shaft is connected to the slider, and the second rotating shaft can rotate on the slider.

[0011] As a preferred solution of the refrigerator sealing structure of the present invention, a first stop block is provided on the sliding block; the first stop block can limit the rotation angle of the rotating wheel member.

[0012] As a preferred solution of the refrigerator sealing structure of the utility model, the limiting member includes a ball plunger and a ball plunger hole; the ball plunger hole is arranged at the upper and lower ends of the sealing door, the ball plunger is arranged on the rotating wheel member, and the ball plunger can be inserted into or away from the ball plunger hole.

[0013] As a preferred solution of the refrigerator sealing structure of the utility model, the limit stop assembly includes a track part and a magnetic part; the track part can provide movement limit for the running wheel and the slider, and the magnetic part is arranged on the track part, and the magnetic part can fix the slider.

[0014] As a preferred solution of the refrigerator sealing structure of the utility model, it also includes a second stopper, which is arranged on one side of the magnetic attraction member. The second stopper can adjust the angle of the rotating wheel member and can stop the rotating wheel member.

[0015] As a preferred solution of the refrigerator sealing structure of the utility model, the track member includes a slider track and a wheel track; the wheel track is arranged on one side of the slider track, the slider can slide in the slider track, and the wheel can move along the wheel track.

[0016] As a preferred solution of the refrigerator sealing structure of the present invention, the magnetic attraction member is arranged inside the slider track, and the magnetic attraction member includes an electromagnet, which can fix the slider.

[0017] As a preferred solution of the refrigerator sealing structure of the present invention, the second stop member includes a second stop block, the second stop block has an inclined angle, and the second stop block can drive the rotating wheel member to rotate.

[0018] As a preferred solution of the sealing structure of the refrigerator of the present invention, it further includes a rolling shutter door assembly, which is arranged on one side of the sealing door, and the sealing door can seal the rolling shutter door assembly.

[0019] As a preferred solution of the refrigerator sealing structure of the present invention, the rolling door assembly includes a rolling door member, a docking window is provided on the rolling door member, and the rolling door member can drive the docking window to rise and fall.

[0020] As a preferred solution of the sealing structure of the refrigerator of the present invention, the sealing door is provided with a sealing member, which can seal the rolling door assembly.

[0021] The beneficial effects of the present invention are as follows: 1. The sliding sealing door slides with the rolling limit assembly and the limit stop assembly to isolate the inside of the refrigerator from the outside, ensuring a low-temperature environment inside the refrigerator. Compared with the rotating door of a traditional refrigerator, the sliding door has a lower space requirement, saving the usable area. At the same time, the sliding door is powered and is tighter than the rotating door that relies solely on magnetic adhesion. 2. The rolling limit assembly, the slider of the slider stopper and the magnetic part on the slider track are adsorbed, and the window opener continues to push the sealing door. At this time, the slider position is fixed, the ball plunger is disengaged from the ball plunger hole, and the rotating wheel rotates along the second shaft. The first shaft connected to the sealing door rotates at the same time, so that the sealing door is close to the rolling door assembly until the wheel abuts the second stop block on one side of the wheel track, and the sealing door is completely tightened. 3. A sealing member is provided on the inside of the sealing door so that when it is attached to the rolling door assembly, the sealing member covers the outer frame of the rolling door assembly, so that the sealing effect is better when it is attached to the rolling door. 4. The ball plunger can clamp and fix the wheel and the sealing door when the wheel moves parallel to the wheel track, ensuring stability during translation and pushing. 5. A first stop block is provided on the slider to prevent the wheel from excessive rotation. After the wheel is in contact with the first stop block, it continues to pull the sealing door, and the wheel drives the slider to disengage from the magnetic part. 6. Two sets of rolling limit assemblies and limit stop assemblies are provided at the upper and lower ends of the sealing door to ensure stability during movement. 7. Rolling shutter door assembly, the rolling shutter door component is made of cold-insulating material, and a docking window is provided on the rolling shutter door component. The position of the docking window is moved by rotating the rolling shutter door component through gears, and only the target position of the material to be entered and exited is connected to the outside world, reducing the exchange of internal and external gas and temperature, increasing storage safety, and reducing energy consumption due to frequent cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0023] Figure 1 This is an overall schematic diagram of the refrigerator sealing structure.

[0024] Figure 2 for Figure 1Schematic diagram of the explosion of the refrigerator sealing structure.

[0025] Figure 3 Schematic diagram of the limit stop assembly of the refrigerator sealing structure.

[0026] Figure 4 This is a three-dimensional schematic diagram of the refrigerator sealing structure from another angle.

[0027] Figure 5 Schematic diagram of the explosion of the rolling shutter door assembly of the refrigerator sealing structure.

[0028] Figure 6 This is a three-dimensional schematic diagram of the refrigerator sealing structure from another perspective.

[0029] Figure 7 for Figure 6 Enlarged view of point A of the refrigerator sealing structure.

[0030] Figures: Sealing door, 1; Rolling limit assembly, 2; Limit stop assembly, 3; Rotating wheel member, 21; Slider stop member, 22; Limit member, 23; First rotating shaft, 211; Support shaft, 212; Wheel, 213; Second rotating shaft, 221; Slider, 222; First stop block, 223; Ball plunger, 231; Ball plunger hole, 232; Track member, 31; Magnetic member, 32; Second stop member, 33; Slider track, 311; Wheel track, 312; Electromagnet, 321; Second stop block, 331; Rolling door assembly, 4; Rolling door member, 41; Docking window, 42; Sealing member, 5; Window opener, 6; DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate 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 may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figures 1 to 3, which is the first embodiment of the utility model, provides a refrigerator sealing structure, which includes a sealing door 1, a rolling limit assembly 2, and a limit stop assembly 3. By arranging multiple groups of rolling limit assemblies 2 and limit stop assemblies 3 at the upper and lower ends of the sealing door 1, it is ensured that the sealing door 1 slides easily to seal when sliding, and also takes up space.

[0036] Specifically, it includes a sealing door 1, a rolling limit assembly 2, and a limit stop assembly 3; the sealing door 1 is provided with a rolling limit assembly 2, the rolling limit assembly 2 is provided on the limit stop assembly 3, the rolling limit assembly 2 can roll on the limit stop assembly 3, the limit stop assembly 3 can limit and stop the rolling limit assembly 2, and the rolling limit assembly 2 and the limit stop assembly 3 can be provided in multiple groups.

[0037] Preferably, the rolling limit assembly 2 can be driven to slide along the limit stop assembly 3 through the sealing door 1, thereby achieving the sealing of the refrigerator by the sealing door 1 and ensuring a low temperature environment inside the refrigerator.

[0038] In summary, the sliding sealed door 1 can be used to isolate the inside of the refrigerator from the outside to ensure a low-temperature environment inside the refrigerator. Compared with the rotating door of a traditional refrigerator, the sliding door has a lower space requirement and saves the usable area. At the same time, the sliding door is powered and is tighter than the rotating door that relies solely on magnetic adhesion.

[0039] Example 2

[0040] Reference Figures 1 to 7 This is the second embodiment of the utility model. In the previous embodiment, the refrigerator sealing structure includes a sealing door 1, a rolling limit assembly 2, and a limit stop assembly 3. By arranging multiple groups of rolling limit assemblies 2 and limit stop assemblies 3 at the upper and lower ends of the sealing door 1, it is ensured that the sealing door 1 slides easily to seal when sliding, and the purpose of occupying space is also saved.

[0041] Specifically, it includes a sealing door 1, a rolling limit assembly 2, and a limit stop assembly 3; the sealing door 1 is provided with a rolling limit assembly 2, the rolling limit assembly 2 is provided on the limit stop assembly 3, the rolling limit assembly 2 can roll on the limit stop assembly 3, the limit stop assembly 3 can limit and stop the rolling limit assembly 2, and the rolling limit assembly 2 and the limit stop assembly 3 can be provided in multiple groups.

[0042] Preferably, the rolling limit assembly 2 can be driven to slide along the limit stop assembly 3 through the sealing door 1, thereby achieving the sealing of the refrigerator by the sealing door 1 and ensuring a low temperature environment inside the refrigerator.

[0043] Furthermore, the rolling limit assembly 2 includes a rotating wheel member 21 and a slider stop member 22; one side of the rotating wheel member 21 is connected to the slider stop member 22, the rotating wheel member 21 can rotate on the sealing door 1, and the slider stop member 22 can rotate on the rotating wheel member 21; the rotating wheel member 21 can move along the limit stop assembly 3, and the limit stop assembly 3 can limit and fix the slider stop member 22.

[0044] Preferably, multiple sets of rotating wheel members 21 are connected to the upper and lower ends of the sealed door 1. The rotating wheel members 21 are provided with slider stops 22; at the same time, the slider stops 22 and the rotating wheel members 21 cooperate with the limit stop assembly 3 to ensure that the sealed door 1 slides horizontally and does not deviate from the track.

[0045] Preferably, the slider stopper 22 can slide on the slider rail 311 , and when it slides to a certain distance, the slider stopper 22 can be fixed by the magnetic member 32 .

[0046] Furthermore, a limiting member 23 is provided on the rotating running wheel member 21 , and the limiting member 23 can limit the rotation of the rotating running wheel member 21 .

[0047] Furthermore, the rotating wheel component 21 includes a first rotating shaft 211, a support shaft 212, and a wheel 213; one end of the first rotating shaft 211 is connected to the sealing door 1, and the other end is connected to the support shaft 212. The wheel 213 is provided on the support shaft 212, and the support shaft 212 can rotate around the first rotating shaft 211.

[0048] Preferably, the support shaft 212 is connected to the sealing door 1 through the first rotating shaft 211, and can move along the wheel track 312 through the running wheel 213; when the limiting member 23 is fixed, the running wheel 213 cannot rotate at an angle.

[0049] Preferably, the first rotating shaft 211 can be used to enable the supporting shaft 212 and the running wheel 213 to rotate when the limiting member 23 is released.

[0050] Furthermore, the slider stopper 22 includes a second rotating shaft 221 and a slider 222 ; one end of the second rotating shaft 221 is set on the support shaft 212 , and the other end of the second rotating shaft 221 is connected to the slider 222 , and the second rotating shaft 221 can rotate on the slider 222 .

[0051] Preferably, the upper end of the second rotating shaft 221 is connected to the support shaft 212, and the lower end is connected to the slider 222. The slider 222 moves in the slider track 311 and touches the magnetic component 32, which will fix the slider 222 so that the slider 222 cannot move. The second stop block 331 is used to rotate by rotating the running wheel 21, so that the position member 23 is released or limited, and the sealing door 1 is further fitted with the rolling door assembly 4.

[0052] Furthermore, a first stop block 223 is provided on the slider 222 ; the first stop block 223 can limit the rotation angle of the rotating wheel member 21 .

[0053] Preferably, the first stop block 223 can be provided to limit the rotation angle of the rotating wheel member 21 to avoid excessive rotation. After the rotating wheel member 21 is in contact with the first stop block 223, the sealing door 1 is continued to be pulled, and the rotating wheel member 21 drives the slider 222 to disengage from the magnetic member 32.

[0054] Furthermore, the limiting member 23 includes a ball plunger 231 and a ball plunger hole 232; the ball plunger hole 232 is arranged at the upper and lower ends of the sealing door 1, and the ball plunger 231 is arranged on the rotating wheel member 21, and the ball plunger 231 can be inserted into or away from the ball plunger hole 232.

[0055] Preferably, when the rotating wheel member 21 and the track member 31 move parallel to each other, the rotating wheel member 21 and the sealing door 1 can be clamped and fixed to ensure stability during translation and pushing and pulling.

[0056] Furthermore, the limit stop assembly 3 includes a track member 31 and a magnetic member 32 ; the track member 31 can limit the movement of the walking wheel 213 and the slider 222 , and the magnetic member 32 is arranged on the track member 31 , and the magnetic member 32 can fix the slider 222 .

[0057] Preferably, the magnetic element 32 is an electromagnet, which can fix the slider 222 so that the slider 222 cannot move forward or backward, thereby rotating the wheel element 21 and the wheel track 312, and the second stop block 331 to rotate the angle, and disengage or insert the ball plunger 231 into the ball plunger hole 232.

[0058] Furthermore, a second stopper 33 is included. The second stopper 33 is arranged on one side of the magnetic member 32 . The second stopper 33 can adjust the angle of the rotating wheel member 21 and can stop the rotating wheel member 21 .

[0059] Preferably, the second stopper 33 has a certain inclination angle, which allows the rotating wheel 21 to move forward or backward along the second stopper 33, thereby triggering a series of actions, causing the sealing door 1 to fit into or move away from the rolling door assembly 4, achieving sealing or leaking out of the rolling door assembly 4, and samples can be stored and accessed when the rolling door assembly 4 leaks out.

[0060] Furthermore, the track member 31 includes a slider track 311 and a wheel track 312 ; the wheel track 312 is arranged on one side of the slider track 311 , the slider 222 can slide in the slider track 311 , and the wheel 213 can move along the wheel track 312 .

[0061] Preferably, the slider 222 can slide in the slider track 311 , and the wheel 213 can move along the wheel track 312 .

[0062] Furthermore, the magnetic member 32 is disposed inside the slider rail 311 . The magnetic member 32 includes an electromagnet 321 . The electromagnet 321 can fix the slider 222 .

[0063] The slider 222 can be fixed by the electromagnet 321 .

[0064] Furthermore, the second stopping member 33 includes a second stopping block 331 . The second stopping block 331 has an inclined angle. The second stopping block 331 can drive the rotating wheel member 21 to rotate.

[0065] Preferably, by setting the second stop block 331 to a certain tilt angle, the sealing door 1 can be made to fit in with or move away from the rolling door assembly 4 .

[0066] Furthermore, it also includes a rolling shutter door assembly 4, which is arranged on one side of the sealing door 1, and the sealing door 1 can seal the rolling shutter door assembly 4.

[0067] Furthermore, the rolling door assembly 4 includes a rolling door member 41 , and a docking window 42 is provided on the rolling door member 41 . The rolling door member 41 can drive the docking window 42 to rise and fall.

[0068] Preferably, the rolling shutter door 41 can be driven to move up and down by a gear chain, thereby driving the docking window 42 to move up and down, making it convenient to store or grab biological samples.

[0069] Furthermore, the sealed door 1 is provided with a seal 5 and a window opener 6. The seal 5 can seal the rolling door assembly 4. The window opener 6 is connected to one side of the sealed door 1, and the window opener 6 can push the sealed door 1 to move.

[0070] Preferably, the sealing member 5 is a sealing strip, or an existing sealing device; the sealing member 5 can better seal and prevent air leakage.

[0071] In summary, the present invention isolates the inside of the refrigerator from the outside by sliding cooperation with the sliding sealing door 1, the rolling limit assembly 2 and the limit stop assembly 3, thereby ensuring a low-temperature environment in the refrigerator. The sliding sealing door 1 has a lower space requirement than the rotary switch door of the traditional refrigerator, saving the use area. At the same time, the sliding door is driven by power, which is tighter than the rotary door that relies solely on magnetic attraction. The slider 222 of the slider stopper 22 and the magnetic attraction member 32 on the slider track 311 complete the adsorption, and the door is opened. The window device 6 continues to push the sealing door 1. At this time, the position of the slider 222 is fixed, the ball plunger 231 is separated from the ball plunger hole 232, and the rotating wheel 21 rotates along the second shaft 221. The first shaft 211 connected to the sealing door 1 rotates at the same time, so that the sealing door 1 is close to the rolling door assembly 4 until the wheel 213 abuts the second stop block 331 on the side of the wheel track 312, and the sealing door 1 is completely tightened; by setting a sealing member 5 on the inner side of the sealing door 1, when it is in contact with the rolling door assembly 4, the sealing member 5 covers the rolling shutter The outer frame of the door assembly 4 makes it have a better sealing effect when it fits the rolling door; through the ball plunger 231 and the ball plunger hole 232, when the running wheel 213 moves parallel to the running wheel track 312, the running wheel 213, the support shaft 212 and the sealing door 1 are clamped and fixed to ensure stability during translation and pushing and pulling; by providing a first stop block 223 on the slider, the running wheel 213 can be prevented from excessive rotation. After the running wheel 213 fits the first stop block 223, the sealing door is continued to be pulled, and the running wheel 213 drives the slider 2 22 is separated from the magnetic attraction part 32; two sets of rolling limit assemblies 2 and limit stop assembly 3 are set at the upper and lower ends of the sealing door 1 to ensure stability during the movement; the rolling shutter door assembly 4 is made of cold-insulating material, and a docking window 42 is opened on the rolling shutter door member 41. The position of the docking window 42 is moved by rotating the rolling shutter door member 41 by the gear, so that only the target position of the material to be entered and exited is connected to the outside world, reducing the exchange of internal and external gas and temperature, increasing the storage safety, and reducing the energy consumption of frequent cooling.

[0072] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0073] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0074] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A refrigerator sealing structure, characterized in that: The invention comprises a sealing door (1), a rolling limit assembly (2), and a limit stop assembly (3); the sealing door (1) is provided with a rolling limit assembly (2), the rolling limit assembly (2) is provided on the limit stop assembly (3), the rolling limit assembly (2) can roll on the limit stop assembly (3), the limit stop assembly (3) can limit and stop the rolling limit assembly (2), and the rolling limit assembly (2) and the limit stop assembly (3) can be provided in multiple groups.

2. The refrigerator sealing structure according to claim 1, wherein: The rolling limit assembly (2) comprises a rotating wheel member (21) and a slider stop member (22); one side of the rotating wheel member (21) is connected to the slider stop member (22); the rotating wheel member (21) can rotate on the sealing door (1); and the slider stop member (22) can rotate on the rotating wheel member (21); the rotating wheel member (21) can move along the limit stop assembly (3), and the limit stop assembly (3) can limit and fix the slider stop member (22).

3. The refrigerator sealing structure according to claim 2, wherein: A limiting member (23) is provided on the rotating running wheel member (21), and the limiting member (23) can limit the rotation of the rotating running wheel member (21).

4. The refrigerator sealing structure according to claim 2 or 3, wherein: The rotating wheel member (21) comprises a first rotating shaft (211), a supporting shaft (212), and a wheel (213); one end of the first rotating shaft (211) is connected to the sealing door (1), and the other end is connected to the supporting shaft (212); the wheel (213) is provided on the supporting shaft (212), and the supporting shaft (212) can rotate around the first rotating shaft (211).

5. The refrigerator sealing structure according to claim 4, wherein: The slider stopper (22) comprises a second rotating shaft (221) and a slider (222); one end of the second rotating shaft (221) is arranged on the support shaft (212), and the other end of the second rotating shaft (221) is connected to the slider (222), and the second rotating shaft (221) can rotate on the slider (222).

6. The refrigerator sealing structure according to claim 5, wherein: The slider (222) is provided with a first stop block (223); the first stop block (223) can limit the rotation angle of the rotating wheel member (21).

7. The refrigerator sealing structure according to claim 3, wherein: The limiting member (23) comprises a ball plunger (231) and a ball plunger hole (232); the ball plunger hole (232) is arranged at the upper end and the lower end of the sealing door (1); the ball plunger (231) is arranged on the rotating wheel member (21); and the ball plunger (231) can be inserted into or away from the ball plunger hole (232).

8. The refrigerator sealing structure according to claim 5, wherein: The limit stop assembly (3) comprises a track member (31) and a magnetic member (32); the track member (31) can allow the walking wheel (213) and the slider (222) to move and limit, and the magnetic member (32) is arranged on the track member (31) and can fix the slider (222).

9. The refrigerator sealing structure according to claim 8, wherein: The device further comprises a second stopper (33), which is arranged on one side of the magnetic attraction member (32). The second stopper (33) can adjust the angle of the rotating wheel member (21) and can stop the rotating wheel member (21).

10. The refrigerator sealing structure according to claim 8, wherein: The track member (31) comprises a slider track (311) and a wheel track (312); the wheel track (312) is arranged on one side of the slider track (311); the slider (222) can slide in the slider track (311); and the wheel (213) can move along the wheel track (312).

11. The refrigerator sealing structure according to claim 10, wherein: The magnetic attraction member (32) is arranged inside the slider track (311), and the magnetic attraction member (32) includes an electromagnet (321), and the electromagnet (321) can fix the slider (222).

12. The refrigerator sealing structure according to claim 9, wherein: The second stop member (33) comprises a second stop block (331), the second stop block (331) has an inclined angle, and the second stop block (331) can drive the rotating wheel member (21) to rotate.

13. The refrigerator sealing structure according to any one of claims 1 to 3, wherein: It also includes a rolling door assembly (4), which is arranged on one side of the sealing door (1), and the sealing door (1) can seal the rolling door assembly (4).

14. The refrigerator sealing structure according to claim 13, wherein: The rolling door assembly (4) comprises a rolling door component (41), a docking window (42) is provided on the rolling door component (41), and the rolling door component (41) can drive the docking window (42) to rise and fall.

15. The refrigerator sealing structure according to claim 14, wherein: The sealed door (1) is provided with a sealing member (5) and a window opener (6); the sealing member (5) can seal the rolling door assembly (4); one side of the sealed door (1) is connected to the window opener (6); the window opener (6) can push the sealed door (1) to move.

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