Refrigerator door body sealing device

Abstract

The utility model discloses a refrigerator door body sealing device relates to refrigerator technical field, including the intermediate plate of installation in the top side and the bottom side inner wall of refrigerator body, both sides of intermediate plate all are fixedly installed with fixed frame, and the inboard wall of refrigerator body is connected with the outside of fixed frame, one side of fixed frame is equipped with the fixed frame of installation of fixed installation in switch door side portion. When the application switches the door and closes, first through the frame sealing gasket and realizes the preliminary sealing of installation frame and fixed frame, and the frame elastic sealing strip cooperates the moving plate and sealing plate, realizes the reinforced sealing of installation frame and three inboard walls of refrigerator body and intermediate plate, and the sealing effect between door body and cabinet is improved significantly in double -sealed structure, effectively reduces the cold air leakage, and sealing plate only pushes the frame elastic sealing strip tight corner through the connecting mechanism when closing, avoids the direct friction of door body and cabinet in the process of opening and closing, and reduces the frame elastic sealing strip abrasion.

Description

Technical Field

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

[0002] The sealing performance of a freezer door is crucial for ensuring refrigeration efficiency and reducing energy consumption. During freezer use, gaps between the door and the cabinet can lead to cold air leakage, increasing energy consumption, affecting internal temperature stability, and even accelerating food spoilage. Therefore, freezer doors need a reliable sealing structure to ensure a tight seal when closed, preventing airflow and maintaining a low-temperature environment inside the freezer.

[0003] Traditional freezer door sealing devices typically employ a single-layer sealing structure. During sealing, a sealing frame is installed inside the freezer body. After the freezer door is closed, the sealing strip on the door contacts the sealing frame, thus sealing the door to the freezer body. However, this sealing effect is limited. If an additional sealing structure is added to the door to seal against the inner wall of the freezer body, continuous friction during door opening and closing will cause the sealing strip to wear out rapidly, reducing its lifespan and reliability. Therefore, we disclose a freezer door sealing device to meet people's needs. Utility Model Content

[0004] The purpose of this application is to provide a freezer door sealing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a freezer door sealing device, including an intermediate plate installed on the inner walls of the top and bottom sides of the freezer body, wherein a fixing frame is fixedly installed on both sides of the intermediate plate, and the outer side of the fixing frame is connected to the inner wall of the freezer body.

[0006] One side of the fixed frame is provided with a mounting frame that is fixedly installed on the side of the switch door. A frame-shaped sealing gasket is fixedly installed on the side of the mounting frame away from the switch door, and the frame-shaped sealing gasket is in contact with the side of the fixed frame.

[0007] The mounting frame has the same frame-shaped groove on all four sides, and the same frame-shaped elastic sealing strip is fixedly installed on the inner walls of both sides of the frame-shaped groove.

[0008] The mounting frame has movable grooves on its four inner walls, movable holes on its inner walls, and movable holes that are connected to the frame grooves. Movable blocks are slidably installed in the movable holes. One end of each movable block extends into the frame groove and is fixedly mounted with a movable plate. Each movable block is equipped with a pressure-bearing mechanism, and the pressure-bearing mechanisms are installed in conjunction with the fixed frame.

[0009] Sealing plates are slidably installed on the inner walls of the four corners of the frame groove, and the four sealing plates are respectively connected to the four moving blocks through a connecting mechanism.

[0010] Preferably, the connecting mechanism includes a U-shaped rod fixedly installed on the side of the movable block, an avoidance hole is provided on the side of the sealing plate, and round rods are fixedly installed on the inner walls of both sides of the avoidance hole. The side of the U-shaped rod extends into the avoidance hole, and one end of the round rod passes through the U-shaped rod.

[0011] Preferably, the pressure-bearing mechanism includes a slide rod fixedly installed on the inner walls of both sides of the moving groove, a slider slidably sleeved on the slide rod, a rotating rod rotatably installed at the top of the slider, the top of the rotating rod rotatably installed on the bottom of the moving block, a spring sleeved on the slide rod, the two ends of the spring being fixedly installed on the side of the slider and the inner wall of the moving groove respectively, and the side of the slider away from the moving block extending out of the moving groove and being fixedly installed with a pressure plate.

[0012] Preferably, one outer portion of the frame-shaped elastic sealing strip contacts the side of the middle plate, the other three sides of the frame-shaped elastic sealing strip contact the three inner walls of the freezer body, and the sides of the four movable plates contact the inner wall of the frame-shaped elastic sealing strip.

[0013] Preferably, inclined grooves are provided on the inner walls of the four corners of the frame groove, and the four sealing plates are slidably installed in the four inclined grooves respectively.

[0014] Preferably, the sealing plate is located at the corner formed by the side of the freezer body and the inner walls of both sides of the freezer body, or at the corner formed by the inner wall of the freezer body and the side of the middle plate.

[0015] Preferably, the side of the pressure plate is in contact with the side of the fixing frame.

[0016] Preferably, the distance between the connection point of the rotating rod and the slider and the door is greater than the distance between the connection point of the rotating rod and the moving block and the door.

[0017] In summary, the technical effects and advantages of this utility model are as follows:

[0018] When the door is opened and closed, this application first achieves a preliminary seal between the mounting frame and the fixed frame through a frame-shaped sealing gasket. At the same time, the frame-shaped elastic sealing strip, together with the moving plate and the sealing plate, achieves a reinforced seal between the mounting frame and the three inner walls and the middle plate of the freezer body. The double sealing structure significantly improves the sealing effect between the door and the cabinet, effectively reducing cold air leakage. Meanwhile, the sealing plate only pushes the frame-shaped elastic sealing strip to press the corner when the door is closed through the connecting mechanism, avoiding direct friction between the door and the cabinet during the opening and closing process, and reducing wear on the frame-shaped elastic sealing strip. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A 3D view showing the connection between the freezer body, sealing device, and door.

[0021] Figure 2 A three-dimensional view showing the connection between the sealing device and the opening / closing door;

[0022] Figure 3 A first-person perspective perspective view of the connection between the sealing device and the opening / closing door;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 A second-view perspective perspective view showing the connection between the sealing device and the opening / closing door;

[0025] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0026] In the diagram: 1. Refrigerator body; 2. Middle plate; 3. Fixed frame; 4. Opening and closing door; 5. Pressure plate; 6. Moving groove; 7. Rotating rod; 8. Mounting frame; 9. Frame-shaped groove; 10. Moving plate; 11. Moving block; 12. U-shaped rod; 13. Moving hole; 14. Spring; 15. Sliding rod; 16. Sliding block; 17. Frame-shaped sealing gasket; 18. Clearance hole; 19. Round rod; 20. Sealing plate; 21. Slanted groove; 22. Frame-shaped elastic sealing strip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 6 The embodiments provided by this utility model are as follows:

[0029] A freezer door sealing device includes an intermediate plate 2 installed on the inner walls of the top and bottom sides of the freezer body 1. A fixing frame 3 is fixedly installed on both sides of the intermediate plate 2, and the outer side of the fixing frame 3 is connected to the inner wall of the freezer body 1.

[0030] A mounting frame 8 is fixedly installed on one side of the fixed frame 3 and fixedly mounted on the side of the switch door 4. The switch door 4 is rotatably connected to the freezer body 1. A frame-shaped sealing gasket 17 is fixedly installed on the side of the mounting frame 8 away from the switch door 4. The frame-shaped sealing gasket 17 is in contact with the side of the fixed frame 3. When in use, when the switch door 4 is closed, the switch door 4 will drive the mounting frame 8 and the frame-shaped sealing gasket 17 to move. When the switch door 4 is closed, the frame-shaped sealing gasket 17 is in close contact with the side of the fixed frame 3. The frame-shaped sealing gasket 17 can be used to perform the first seal.

[0031] The four sides of the mounting frame 8 are provided with the same frame-shaped groove 9, and the same frame-shaped elastic sealing strip 22 is fixedly installed on the inner walls of both sides of the frame-shaped groove 9.

[0032] The four inner walls of the mounting frame 8 are provided with moving grooves 6, and the inner walls of the four moving grooves 6 are provided with moving holes 13. The four moving holes 13 are respectively connected to the frame grooves 9. The four moving blocks 11 are slidably installed in the four moving holes 13. One end of the four moving blocks 11 extends into the frame grooves 9 and is fixedly installed with a moving plate 10. The four moving blocks 11 are all equipped with a pressure-bearing mechanism. The four pressure-bearing mechanisms are all installed in conjunction with the fixed frame 3.

[0033] like Figure 3 and Figure 4 As shown, the pressure-bearing mechanism includes a slide rod 15 fixedly installed on the inner walls of both sides of the moving groove 6. A slider 16 is slidably sleeved on the slide rod 15. A rotating rod 7 is rotatably installed on the top of the slider 16. The top of the rotating rod 7 is rotatably installed on the bottom of the moving block 11. A spring 14 is sleeved on the slide rod 15. The two ends of the spring 14 are fixedly installed on the side of the slider 16 and the inner wall of the moving groove 6, respectively. The movement of the four sliders 16 causes the four springs 14 to deform. The setting of the springs 14 facilitates the restoration of the moving plate 10 to its original shape. The side of the slider 16 away from the moving block 11 extends to the outside of the moving groove 6 and is fixedly installed with a pressure plate 5. During the movement of the mounting frame 8, the four pressure plates 5 will move. When the four pressure plates 5 come into contact with the side of the fixed frame 3, the four pressure plates 5 are squeezed, which causes the four sliders 16 to move. At the same time, the movement of the four sliders 16 causes the four rotating rods 7 to rotate. The rotation of the four rotating rods 7 causes the four moving blocks 11 to move away from each other, which in turn causes the four moving plates 10 to move. The four moving plates 10 press the frame-shaped elastic sealing strip 22 tightly against the three inner walls of the freezer body 1 and the side of the middle plate 2.

[0034] Sealing plates 20 are slidably installed on the inner walls of the four corners of the frame groove 9, and the four sealing plates 20 are connected to the four moving blocks 11 respectively through the connecting mechanism.

[0035] like Figure 5 and Figure 6 As shown, the connecting mechanism includes a U-shaped rod 12 fixedly installed on the side of the movable block 11. An avoidance hole 18 is provided on the side of the sealing plate 20. Round rods 19 are fixedly installed on the inner walls of both sides of the avoidance hole 18. The side of the U-shaped rod 12 extends into the avoidance hole 18, and one end of the round rod 19 passes through the U-shaped rod 12. The movement of the four movable blocks 11 drives the movement of the four U-shaped rods 12, which in turn drives the movement of the four round rods 19. The movement of the four round rods 19 then drives the movement of the four sealing plates 20. The four sealing plates 20 press the four corners of the frame-shaped elastic sealing strip 22 against the corners formed by the inner walls on both sides of the freezer body 1 and the corners formed by the inner wall of the freezer body 1 and the side of the middle plate 2, thereby forming a secondary seal and improving the sealing effect of the opening and closing door 4.

[0036] like Figure 4 As shown, one outer portion of the frame-shaped elastic sealing strip 22 contacts the side of the middle plate 2, and the other three sides of the frame-shaped elastic sealing strip 22 contact the three inner walls of the freezer body 1. The sides of the four movable plates 10 all contact the inner walls of the frame-shaped elastic sealing strip 22. The advantage of this arrangement is that the frame-shaped elastic sealing strip 22 can contact the side of the middle plate 2 and the three inner walls of the freezer body 1, thereby forming a seal.

[0037] like Figure 5 and Figure 6 As shown, inclined grooves 21 are provided on the inner walls of the four corners of the frame-shaped groove 9, and the four sealing plates 20 are slidably installed in the four inclined grooves 21 respectively. The inclined grooves 21 can limit the position of the sealing plates 20.

[0038] like Figure 5 and Figure 6 As shown, the sealing plate 20 corresponds to the corner formed by the inner walls on both sides of the freezer body 1 or the corner formed by the inner wall of the freezer body 1 and the side of the middle plate 2. The four sealing plates 20 press the four corners of the frame-shaped elastic sealing strip 22 against the corners formed by the inner walls on both sides of the freezer body 1 and the corners formed by the inner wall of the freezer body 1 and the side of the middle plate 2, thereby sealing the corners.

[0039] like Figure 2 As shown, the side of the pressure plate 5 contacts the side of the fixed frame 3. The advantage of this arrangement is that when the door 4 is closed, the pressure plate 5 will contact the fixed frame 3.

[0040] like Figure 4As shown, the distance between the connection point of the rotating rod 7 and the slider 16 and the switch door 4 is greater than the distance between the connection point of the rotating rod 7 and the moving block 11 and the switch door 4. The advantage of this arrangement is that when the slider 16 moves, it will cause the moving block 11 to move away from the slider 16.

[0041] Working principle:

[0042] In use, closing the switch door 4 causes the mounting frame 8 and frame-shaped sealing gasket 17 to move. When the switch door 4 is closed, the frame-shaped sealing gasket 17 is in close contact with the side of the fixed frame 3, achieving initial sealing. Simultaneously, the movement of the mounting frame 8 causes the four pressure plates 5 to move. When the four pressure plates 5 contact the side of the fixed frame 3, they are compressed, causing the four sliders 16 to move. This movement of the four sliders 16 drives the four rotating rods 7 to rotate, which in turn causes the four moving blocks 11 to move away from each other, thus allowing the four moving blocks 11 to move further apart. The movable plate 10 moves, and the four movable plates 10 press the frame-shaped elastic sealing strip 22 against the three inner walls of the freezer body 1 and the side of the middle plate 2. At the same time, the four movable blocks 11 move, driving the four U-shaped rods 12 to move. The four U-shaped rods 12 move, driving the four round rods 19 to move. The four round rods 19 move, driving the four sealing plates 20 to move. The four sealing plates 20 press the four corners of the frame-shaped elastic sealing strip 22 against the corners formed by the inner walls of the two sides of the freezer body 1 and the corners formed by the inner wall of the freezer body 1 and the side of the middle plate 2, thereby forming a second seal and improving the sealing effect of the opening and closing door 4.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A refrigerator door sealing device, characterized in that: Includes an intermediate plate (2) installed on the inner walls of the top and bottom sides of the freezer body (1), and a fixing frame (3) is fixedly installed on both sides of the intermediate plate (2), and the outer side of the fixing frame (3) is connected to the inner wall of the freezer body (1). The fixed frame (3) has a mounting frame (8) fixedly installed on the side of the switch door (4). A frame-shaped sealing gasket (17) is fixedly installed on the side of the mounting frame (8) away from the switch door (4). The frame-shaped sealing gasket (17) is in contact with the side of the fixed frame (3). The mounting frame (8) has the same frame-shaped groove (9) on its four sides, and the same frame-shaped elastic sealing strip (22) is fixedly installed on the inner walls of both sides of the frame-shaped groove (9). The four inner walls of the mounting frame (8) are provided with moving grooves (6), and the inner walls of the four moving grooves (6) are provided with moving holes (13). The four moving holes (13) are respectively connected to the frame groove (9). The four moving holes (13) are slidably installed with moving blocks (11) in the four moving holes (13). One end of the four moving blocks (11) extends into the frame groove (9) and is fixedly installed with a moving plate (10). The four moving blocks (11) are all equipped with pressure-bearing mechanisms. The four pressure-bearing mechanisms are all installed in cooperation with the fixed frame (3). Sealing plates (20) are slidably installed on the inner walls of the four corners of the frame groove (9), and the four sealing plates (20) are connected to the four moving blocks (11) respectively through the connecting mechanism.

2. The freezer door sealing device according to claim 1, characterized in that: The connecting mechanism includes a side U-shaped rod (12) fixedly installed on the movable block (11), and a clearance hole (18) is provided on the side of the sealing plate (20). A round rod (19) is fixedly installed on the inner walls of both sides of the clearance hole (18). The side of the U-shaped rod (12) extends into the clearance hole (18), and one end of the round rod (19) passes through the U-shaped rod (12).

3. A freezer door sealing device according to claim 1, characterized in that: The pressure-bearing mechanism includes a slide rod (15) fixedly installed on the inner walls of both sides of the moving groove (6). A slider (16) is slidably sleeved on the slide rod (15). A rotating rod (7) is rotatably installed on the top of the slider (16). The top of the rotating rod (7) is rotatably installed on the bottom of the moving block (11). A spring (14) is sleeved on the slide rod (15). The two ends of the spring (14) are fixedly installed on the side of the slider (16) and the inner wall of the moving groove (6), respectively. The side of the slider (16) away from the moving block (11) extends out of the moving groove (6) and is fixedly installed with a pressure plate (5).

4. A freezer door sealing device according to claim 1, characterized in that: One of the outer sides of the frame-shaped elastic sealing strip (22) contacts the side of the middle plate (2), the other three sides of the frame-shaped elastic sealing strip (22) contact the three inner walls of the freezer body (1), and the sides of the four movable plates (10) all contact the inner wall of the frame-shaped elastic sealing strip (22).

5. A freezer door sealing device according to claim 1, characterized in that: The inner walls of the four corners of the frame groove (9) are provided with inclined grooves (21), and the four sealing plates (20) are slidably installed in the four inclined grooves (21).

6. A freezer door sealing device according to claim 1, characterized in that: The sealing plate (20) is located at the corner formed by the side of the freezer body (1) and the inner walls of both sides of the freezer body (1) or at the corner formed by the inner wall of the freezer body (1) and the side of the middle plate (2).

7. A freezer door sealing device according to claim 3, characterized in that: The side of the pressure plate (5) is in contact with the side of the fixing frame (3).

8. A freezer door sealing device according to claim 3, characterized in that: The distance between the connection point of the rotating rod (7) and the slider (16) and the switch door (4) is greater than the distance between the connection point of the rotating rod (7) and the moving block (11) and the switch door (4).

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