Door body structure and refrigerator

Abstract

The utility model relates to a door body structure and a refrigerator. The door body structure comprises a door body and a pressure relief assembly arranged in the door body, and the door body is hinged to the inner container. The pressure relief assembly comprises a pressure relief shaft sleeve, a sealing block, a first connecting rod and a first sliding block, the pressure relief shaft sleeve is columnar and is fixed relative to the door body, a sliding cavity is formed in the end, close to one side of the inner container, of the pressure relief shaft sleeve, the sliding cavity communicates with the interior of the inner container, and a pressure relief hole is further formed in the pressure relief shaft sleeve in the radial direction in a penetrating mode and communicates with the sliding cavity inwards; the door body is provided with a door opening; the sealing block is slidably connected into the sliding cavity in the axial direction of the pressure relief shaft sleeve, and the sealing block is attached to the inner wall of the sliding cavity in a sealed mode. The first sliding block is movably arranged on the door body and at least partially protrudes out of the door body, one end of the first connecting rod is hinged to the first sliding block, and the other end of the first connecting rod penetrates through the pressure relief shaft sleeve to be hinged to the sealing block. A user can control the refrigerator to be communicated with the external environment by operating the first sliding block, so that the pressure difference inside and outside the refrigerator is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a door body structure and a refrigerator. Background Art

[0002] To ensure good refrigeration and heat preservation performance, most refrigerators require the box body to have good sealing performance. However, the relatively low temperature in the box and the sealing performance will cause the air pressure inside the refrigerator to be less than the atmospheric pressure of the external environment, resulting in a greater resistance to opening the refrigerator door, and it is more laborious for users to open the refrigerator door.

[0003] Currently, most solutions adopt adding a handle or setting a push rod motor to assist in opening the door. The former adds a mechanical handle on the door side and uses the lever principle to reduce the pulling force required by the user when opening the door. However, the traditional handle affects the overall appearance integrity, and some users prefer a handleless design.

[0004] The latter push rod motor has a limited stroke and a small acting range. When the negative pressure inside the refrigerator is large, the force exerted by the push rod motor on a local area is difficult to resist the door opening force, which may lead to failure to open the door. Summary of the Utility Model

[0005] Based on this, in view of the problem that it is difficult to open the door of the handleless refrigerator door body at present, it is necessary to provide a door body structure and a refrigerator that are more labor-saving to open and have a handleless design.

[0006] This application first provides a door body structure, including a door body and a pressure relief component arranged inside the door body. The door body is hinged to the inner liner.

[0007] The pressure relief component includes a pressure relief shaft sleeve, a sealing block, a first connecting rod, and a first slider. The pressure relief shaft sleeve is columnar and fixed relative to the door body. An end of the pressure relief shaft sleeve close to the inner liner is provided with a sliding cavity, and the sliding cavity is communicated with the inside of the inner liner. The pressure relief shaft sleeve is also provided with a pressure relief hole penetrating in the radial direction. The pressure relief hole is communicated with the sliding cavity inward and with the outside of the door body outward.

[0008] The sealing block is slidably connected to the inside of the sliding cavity along the axial direction of the pressure relief shaft sleeve, and the sealing block is in sealing fit with the inner wall of the sliding cavity.

[0009] The first slider is movably arranged on the door body and at least partially protrudes from the door body. One end of the first connecting rod is hinged to the first slider, and the other end penetrates the pressure relief shaft sleeve to be hinged to the sealing block.

[0010] In one embodiment, the pressure relief component further includes a first slide rail fixed relative to the door body, and the first slider is slidably connected to the first slide rail along the length direction of the first slide rail.

[0011] In one embodiment, the length direction of the first slide rail is perpendicular to the pressure relief shaft sleeve.

[0012] In one embodiment, the pressure relief assembly further includes a second slide rail, a second slider, and a second connecting rod. The second slide rail is parallel to the pressure relief shaft sleeve and is also fixed relative to the door body. The second slider is slidably connected to the second slide rail along the length direction of the second slide rail. One end of the second connecting rod is hinged to the second slider, and the other end is hinged to the first slider.

[0013] In one embodiment, the pressure relief assembly further includes a third connecting rod and a sliding sleeve. The sliding sleeve is slidably connected to the first connecting rod along the length direction of the first connecting rod. One end of the third connecting rod is hinged to the second connecting rod, and the other end is hinged to the sliding sleeve.

[0014] In one embodiment, the first slider includes a slider base and a connecting rod. The slider base is slidably connected to the first slide rail. The connecting rod is U-shaped. The two ends of the U-shape are respectively fixed to the slider base. The bottom of the U-shape protrudes outward from the door body. The ends of the first connecting rod and the second connecting rod are respectively rotatably sleeved on one end of the U-shape of the connecting rod.

[0015] In one embodiment, the door body structure further includes an embedded box. The pressure relief assembly is disposed inside the embedded box, and the embedded box is fixed inside the door body.

[0016] In one embodiment, the embedded box is flush with the side of the door body away from the hinge position. The first slider penetrates through the embedded box and protrudes from the side of the door body away from the hinge position.

[0017] In one embodiment, pressure relief holes are formed on both sides of the pressure relief shaft sleeve in the radial direction. The pressure relief shaft sleeve is also provided with a through groove in the radial direction. The first connecting rod penetrates through the through groove to be hinged to the sealing block.

[0018] The second aspect of the present application provides a refrigerator, including the above-mentioned door body structure.

[0019] In the above-mentioned door body structure, by providing a pressure relief assembly inside the door body, a user can operate the first slider to control the sealing block to slide along the sliding cavity, thereby realizing the connection or disconnection between the inside of the inner container and the outside. When the inside of the inner container is connected to the outside of the door body through the sliding cavity and the pressure relief holes, that is, the refrigerator compartment is connected to the outside environment, the pressure difference inside and outside the refrigerator can be eliminated, thereby reducing the door opening force and facilitating the user's door opening operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a perspective view of the door body structure of this application;

[0021] Figure 2 It is a perspective view of the pressure relief component in one embodiment of this application;

[0022] Figure 3 It is Figure 2 The perspective view of the pressure relief component in different states;

[0023] Figure 4 It is a perspective view of the pressure relief structure in another embodiment of this application;

[0024] Figure 5 It is Figure 1 The enlarged view of the embedded box in

[0025] Figure 6 It is Figure 5 The perspective view from another angle.

[0026] Reference numerals: 10, door body; 20, pressure relief component; 21, pressure relief shaft sleeve; 21a, sliding cavity; 21b, pressure relief hole; 21c, through groove; 22, sealing block; 23, first connecting rod; 24, first slider; 24a, slider base; 24b, connecting rod; 25, first slide rail; 26, second slide rail; 27, second slider; 28, second connecting rod; 29a, third connecting rod; 29b, sliding sleeve; 30, embedded box. Detailed implementation manners

[0027] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0029] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0033] Please combine Figure 1 、 Figure 2 and Figure 3As shown in the figure, the present application first provides a door structure, including an inner liner, a door body 10, and a pressure relief component 20 disposed inside the door body 10. The door body 10 is hinged to the inner liner; the pressure relief component 20 includes a pressure relief shaft sleeve 21, a sealing block 22, a first connecting rod 23, and a first slider 24. The pressure relief shaft sleeve 21 is columnar and fixed relative to the door body 10. An end portion of the pressure relief shaft sleeve 21 close to the inner liner is provided with a sliding cavity 21a, and the sliding cavity 21a communicates with the inside of the inner liner. The pressure relief shaft sleeve 21 is also provided with a pressure relief hole 21b penetrating in the radial direction. The pressure relief hole 21b communicates with the sliding cavity 21a inwardly and communicates with the outside of the door body 10 outwardly; the sealing block 22 is slidably connected to the inside of the sliding cavity 21a along the axial direction of the pressure relief shaft sleeve 21, and the sealing block 22 is in sealing fit with the inner wall of the sliding cavity 21a; the first slider 24 is movably disposed on the door body 10 and at least partially protrudes from the door body 10. One end of the first connecting rod 23 is hinged to the first slider 24, and the other end penetrates through the pressure relief shaft sleeve 21 to be hinged to the sealing block 22.

[0034] In the present application, by providing the pressure relief component 20 inside the door body 10, the user can operate the first slider 24 to control the sealing block 22 to slide along the sliding cavity 21a, so as to realize the connection or disconnection between the inside of the inner liner and the outside. When the inside of the inner liner communicates with the outside of the door body 10 through the sliding cavity 21a and the pressure relief hole 21b, that is, the refrigerator compartment is connected to the outside environment, the pressure difference inside and outside the refrigerator can be eliminated, thereby reducing the door opening force and facilitating the user's door opening operation.

[0035] Specifically, the sealing block 22 has two states: a sealing state and a pressure relief state. In the sealing state, the sealing block 22 is at least partially located between the pressure relief hole 21b and the opening of the sliding cavity 21a facing the inner liner side, so as to block the outside air from entering the inner liner through the pressure relief hole 21b; in the pressure relief state, the sealing block 22 moves away from the inner liner side, so that the pressure relief hole 21b communicates with the opening of the sliding cavity 21a facing the inner liner side. At this time, the outside air can enter the inner liner through the pressure relief hole 21b to eliminate the pressure difference inside and outside the refrigerator.

[0036] Please refer to Figure 2 and Figure 3 As shown in the figure, in some embodiments, the pressure relief component 20 further includes a first slide rail 25 fixed relative to the door body 10. The first slider 24 is slidably connected to the first slide rail 25 along the length direction of the first slide rail 25; the first slide rail 25 can play a role of positioning and limiting, and improve the sliding stability of the first slider 24.

[0037] Of course, in some other embodiments, other common transmission structures can also be used to connect the first slider 24 and the sealing block 22, as long as the sealing block 22 can be controlled to reciprocate along the length direction of the pressure relief shaft sleeve 21 by operating the first slider 24 protruding from the door body 10.

[0038] Preferably, in some embodiments, the length direction of the first slide rail 25 is perpendicular to the pressure relief shaft sleeve 21, and the pressure relief shaft sleeve 21 is parallel to the normal direction of the door body 10.

[0039] Please refer to Figure 4 As shown, in some embodiments, the pressure relief assembly 20 further includes a second slide rail 26, a second slider 27, and a second connecting rod 28. The second slide rail 26 is parallel to the pressure relief shaft sleeve 21 and is also fixed relative to the door body 10. The second slider 27 is slidably connected to the second slide rail 26 along the length direction of the second slide rail 26. One end of the second connecting rod 28 is hinged to the second slider 27, and the other end is hinged to the first slider 24.

[0040] Specifically, the pressure relief assembly 20 further includes a third connecting rod 29a and a sliding sleeve 29b. The sliding sleeve 29b is slidably connected to the first connecting rod 23 along the length direction of the first connecting rod 23. One end of the third connecting rod 29a is hinged to the second connecting rod 28, and the other end is hinged to the sliding sleeve 29b.

[0041] It is not difficult to understand that when the first slider 24 slides to a position where the first connecting rod 23 is perpendicular to the pressure relief shaft sleeve 21, the pressure relief assembly 20 reaches a dead point. At this time, applying force to the first slider 24 cannot further control the movement of the sealing block 22. By providing parts such as the second connecting rod 28 and the third connecting rod 29a, when the pressure relief assembly 20 reaches the above-mentioned dead point, a component force parallel to the length direction of the pressure relief shaft sleeve 21 can be applied to the first connecting rod 23 through the third connecting rod 29a, thereby assisting the sealing block 22 to break away from the dead point.

[0042] Please refer to Figure 4 As shown, in some embodiments, the first slider 24 includes a slider base 24a and a connecting rod 24b. The slider base 24a is slidably connected to the first slide rail 25. The connecting rod 24b is U-shaped. The two ends of the U-shape are fixed to the slider base 24a. The bottom of the U-shape protrudes outward from the door body 10. The ends of the first connecting rod 23 and the second connecting rod 28 are respectively rotatably sleeved on one end of the U-shape of the connecting rod 24b.

[0043] Of course, the first slider 24 can also have other structures, as long as the first connecting rod 23 and the second connecting rod 28 are both hinged to the first slider 24, the first slider 24 is slidably connected to the first slide rail 25 and partially protrudes from the door body 10.

[0044] Please refer to Figure 1 、 Figure 5 and Figure 6 As shown, in some embodiments, the door body structure further includes an embedded box 30. The pressure relief assembly 20 is disposed inside the embedded box 30. The embedded box 30 is fixed inside the door body 10. The pressure relief assembly 20 is installed in the foam body of the door body 10 in the form of the embedded box 30.

[0045] Preferably, in some embodiments, the embedded box 30 is flush with the side of the door body 10 away from the hinge position. The first slider 24 penetrates through the embedded box 30 and protrudes from the side of the door body 10 away from the hinge position. On the one hand, this position is convenient for users to use and operate. On the other hand, it can also ensure the visual effect of the flat and integral front of the door body 10.

[0046] Please refer to Figure 2 and Figure 6 As shown, in some embodiments, pressure relief holes 21b are formed on both sides of the pressure relief shaft sleeve 21 in the radial direction. The pressure relief shaft sleeve 21 is also provided with a through groove 21c in the radial direction. The first connecting rod 23 penetrates through the through groove 21c and is hinged to the sealing block 22.

[0047] The second aspect of the present application provides a refrigerator, including the above-mentioned door body structure.

[0048] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0049] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A door structure, characterized in that, It includes a door body (10) and a pressure relief component (20) disposed inside the door body (10), and the door body (10) is hinged to the inner container; The pressure relief component (20) includes a pressure relief shaft sleeve (21), a sealing block (22), a first connecting rod (23) and a first slider (24). The pressure relief shaft sleeve (21) is columnar and fixed relative to the door body (10). An end portion of the pressure relief shaft sleeve (21) close to the inner container is provided with a sliding cavity (21a). The sliding cavity (21a) communicates with the inside of the inner container. The pressure relief shaft sleeve (21) is also provided with a pressure relief hole (21b) penetrating in the radial direction. The pressure relief hole (21b) communicates with the sliding cavity (21a) inward and communicates with the outside of the door body (10) outward; The sealing block (22) is slidably connected to the inside of the sliding cavity (21a) along the axial direction of the pressure relief shaft sleeve (21), and the sealing block (22) is in sealing fit with the inner wall of the sliding cavity (21a); The first slider (24) is movably disposed on the door body (10) and at least partially protrudes from the door body (10). One end of the first connecting rod (23) is hinged to the first slider (24), and the other end penetrates through the pressure relief shaft sleeve (21) to be hinged to the sealing block (22).

2. The door body structure according to claim 1, wherein, The pressure relief component (20) further includes a first slide rail (25) fixed relative to the door body (10). The first slider (24) is slidably connected to the first slide rail (25) along the length direction of the first slide rail (25).

3. The door body structure according to claim 2, characterized in that, The length direction of the first slide rail (25) is perpendicular to the pressure relief shaft sleeve (21).

4. The door body structure according to claim 3, characterized in that, The pressure relief component (20) further includes a second slide rail (26), a second slider (27) and a second connecting rod (28). The second slide rail (26) is parallel to the pressure relief shaft sleeve (21) and is also fixed relative to the door body (10). The second slider (27) is slidably connected to the second slide rail (26) along the length direction of the second slide rail (26). One end of the second connecting rod (28) is hinged to the second slider (27), and the other end is hinged to the first slider (24).

5. The door body structure according to claim 4, characterized in that, The pressure relief component (20) further includes a third connecting rod (29a) and a sliding sleeve (29b). The sliding sleeve (29b) is slidably connected to the first connecting rod (23) along the length direction of the first connecting rod (23). One end of the third connecting rod (29a) is hinged to the second connecting rod (28), and the other end is hinged to the sliding sleeve (29b).

6. The door body structure according to claim 4, wherein The first slider (24) includes a slider base (24a) and a connecting rod (24b). The slider base (24a) is slidably connected to the first slide rail (25). The connecting rod (24b) is U-shaped. Two ends of the U-shape are fixed to the slider base (24a). The bottom of the U-shape protrudes outward from the door body (10). The ends of the first connecting rod (23) and the second connecting rod (28) are respectively rotatably sleeved on one end of the U-shape of the connecting rod (24b).

7. The door body structure according to claim 1, characterized in that The door body structure further includes an embedded box (30), the pressure relief component (20) is arranged inside the embedded box (30), and the embedded box (30) is fixed inside the door body (10).

8. The door body structure according to claim 7, characterized in that, The embedded box (30) is flush with the side of the door body (10) away from the hinged position, and the first slider (24) penetrates through the embedded box (30) and protrudes from the side of the door body (10) away from the hinged position.

9. The door body structure according to claim 1, characterized in that, Both opposite sides of the pressure relief shaft sleeve (21) in the radial direction are provided with pressure relief holes (21b), and the pressure relief shaft sleeve (21) is also provided with a through groove (21c) penetrating in the radial direction, and the first connecting rod (23) penetrates through the through groove (21c) to be hinged to the sealing block (22).

10. A refrigerator, characterized in that, It includes the door body structure according to any one of claims 1 to 9.

Images