CN114440538B - A upset roof beam structure and refrigerator for refrigerator door seals - Google Patents

Abstract

The invention discloses a turnover beam structure for sealing a refrigerator door and the refrigerator, wherein the turnover beam comprises a shell, an inner cavity, a sliding block and a driving mechanism; the shell is arranged on the first door body, the sliding block is arranged in the inner cavity, the driving mechanism is arranged on the shell, and the driving mechanism drives the sliding block to move between the bottom of the turnover beam and the refrigerator liner; when the second door body applies force to the driving mechanism on the shell, the driving mechanism drives the sliding block to move downwards to contact with the refrigerator liner, so that a gap of the refrigerator is sealed; when the second door body is opened, the force applied by the driving mechanism is eliminated, and the sliding block of the inner cavity moves upwards. The turnover beam structure for sealing the refrigerator door ensures that the refrigerator has better sealing performance in a door closing state on the basis of not changing the refrigerator body, reduces cold air leakage and improves the energy saving performance of the refrigerator.

Description

A upset roof beam structure and refrigerator for refrigerator door seals

Technical Field

The invention relates to the field of household appliances, in particular to a turnover beam structure for sealing a refrigerator door and a refrigerator.

Background

The refrigerator is a frequently used household appliance, and almost every household purchases the refrigerator along with the development of society and economy, and the side-by-side refrigerator is favored by people due to the advantages of attractive appearance, large capacity, multiple functions and the like. The refrigerator that frequently goes to open in present life from the top down divide into the walk-in, temperature changing room and freezer, the walk-in generally is equipped with about two door bodies, in order to avoid controlling the cold problem of leaking of the back refrigerator door crack department of closing about, often hinge a upset roof beam on the refrigerator left side door, upset roof beam top is equipped with the guide body, offer a guide way on the refrigerator inner bag along seting up, generally close the refrigerator left side door earlier, then the guide body at upset roof beam top slides along the guide way along the inner bag upper edge, make the upset roof beam expand, then the right side door is closed, laminating with the upset roof beam (as shown in fig. 1), so effectually avoid the cold problem of leaking between two door cracks.

However, the turnover beam belongs to a rigid object, and the opening of the left door of the refrigerator drives the turnover beam to rotate, so that the turnover beam does not interfere or rub with the refrigerator liner when rotating, and therefore, the turnover beam cannot be tightly attached to the upper edge and the lower edge of the refrigerator liner when being designed, and a certain gap is often reserved. The outside of the gap is only provided with a layer of rubber to separate the refrigerating chamber from the outside air, so that the cold air in the refrigerating chamber exchanges heat with the outside air to cause certain cold leakage, and through the team experiment test, if the gap between the turnover beam and the refrigerator liner is sealed, the refrigerator can save energy by about 3 percent. Refrigerators are used too frequently throughout the country or even the world, and a large amount of energy may be wasted due to such cold leakage.

Disclosure of Invention

The invention mainly aims to provide a turnover beam structure for sealing a refrigerator door and the refrigerator, and aims to solve the problem of cold leakage caused by gaps between the bottom and the top of the existing turnover beam of the refrigerator and a refrigerator liner.

In order to achieve the above object, the present invention provides the following technical solutions.

A turnover beam structure for sealing a refrigerator door comprises a shell, an inner cavity, a sliding block and a driving mechanism;

the shell is arranged on the first door body, the sliding block is arranged in the inner cavity, the driving mechanism is arranged on the shell, and the driving mechanism drives the sliding block to move between the bottom of the turnover beam and the refrigerator liner;

when the second door body applies force to the driving mechanism on the shell, the driving mechanism drives the sliding block to move downwards to contact with the refrigerator liner, so that a gap of the refrigerator is sealed; when the second door body is opened, the force applied by the driving mechanism is eliminated, and the sliding block of the inner cavity moves upwards.

As a further improvement of the invention, the driving mechanism comprises a first button, a first spring mechanism and a crank double-slider mechanism;

the first telescopic button is arranged on one surface of the shell, which is contacted with the second door body, in the closed state of the refrigerator door, and a first spring mechanism is arranged in the first button; a crank double-slide block mechanism is arranged in the inner cavity;

the first spring mechanism comprises a spring seat and a first spring;

the crank double-slider mechanism comprises a shaft, a disc rotating around the shaft, a first connecting rod and a second connecting rod;

the shaft is fixed on the inner cavity wall, the disc is sleeved on the shaft, one ends of the first connecting rod and the second connecting rod are connected with the disc through a revolute pair, the other end of the first connecting rod is connected with the sliding block through a revolute pair, and the other end of the second connecting rod is connected with the button through a revolute pair.

As a further improvement of the invention, the first button is hollow and semi-open inside and is internally provided with a transverse column which is matched with a spring on the spring seat to form a spring mechanism.

As a further improvement of the present invention, the driving mechanism includes a second button, a second spring mechanism and a wedge mechanism; the second spring mechanism comprises a second spring, a third spring and a fourth spring;

the telescopic second button is arranged on one surface of the shell, which is contacted with the second door body, in the closed state of the refrigerator door, and extends into the inner cavity; the sliding block is perpendicular to the movement direction of the button, and the inclined plane of the end part of the sliding block and the inclined plane of the button form a wedge block mechanism; one end of the second spring is fixed on the wall of the inner cavity, the other end of the second spring is connected with the second button, one ends of the third spring and the fourth spring are fixed on two shoulders of the sliding block, and the other ends of the third spring and the fourth spring are fixed on a cross beam of the inner cavity.

As a further improvement of the present invention, the drive mechanism includes a third spring mechanism and a magnet pair; the third spring mechanism comprises a fifth spring and a sixth spring; the magnet pair comprises a first magnet and a second magnet;

one ends of the fifth spring and the sixth spring are fixed on two shoulders of the sliding block, and the other ends of the fifth spring and the sixth spring are fixed on a cross beam of the inner cavity; the first magnet is embedded in the first magnet sliding block, the second magnet is embedded in one surface of the second door body, which is contacted with the turnover beam, and the magnetic poles adjacent to the first magnet and the second magnet are the same-name magnetic poles.

As a further improvement of the invention, a section of slide rail is arranged on the track of the sliding block movement on both sides of the inner wall of the shell; the roller is arranged on the side wall of the sliding block and is arranged in the sliding rail.

As a further improvement of the invention, the top and bottom ends of the sliding rail are provided with buffer gaskets.

As a further development of the invention, the slider is made of an elastic material.

As a further development of the invention, the cross section of the slide is slightly smaller than the cross section of the inner cavity of the flip beam.

A refrigerator comprises the turnover beam structure for sealing a refrigerator door.

Compared with the prior art, the invention has the beneficial effects that:

the turnover beam structure for sealing the refrigerator door controls the sliding blocks in the inner cavity of the turnover beam to move up and down through the button driving crank double-sliding block mechanism on the turnover beam, when the left door of the refrigerator is closed, the turnover beam is opened, then the right door of the refrigerator is closed, the button on the turnover beam is extruded by the right door, the button is retracted into the inner cavity of the turnover beam and compresses a spring in the button, and meanwhile, the button drives the crank double-sliding block mechanism to enable the sliding blocks to move downwards to be tightly attached to the inner cavity of the refrigerator, so that the effect of sealing the refrigerator door is achieved; when the right door is opened, the button moves outwards under the action of the spring restoring force, and simultaneously drives the crank double-slider mechanism to enable the slider to move upwards to be separated from the refrigerator liner, so that a gap between the refrigerator liner and the turnover beam appears, the left door can be opened smoothly, and the problem of cold leakage and energy consumption caused by the gap between the bottom of the turnover beam and the refrigerator liner is solved skillfully on the basis that the refrigerator body is not changed by the turnover beam structure for sealing the refrigerator door.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings used in the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Moreover, the figures are not drawn to a 1:1 scale, and the relative sizes of various elements are merely exemplary in the figures, and are not necessarily drawn to true scale.

Fig. 1 is a schematic diagram of the relative positions of the components of a side-by-side combination refrigerator.

Fig. 2 is a schematic view of the internal structure of a turnover beam structure for sealing a refrigerator door.

Fig. 3 is a schematic diagram of a spring mechanism.

Fig. 4 is a schematic diagram of a crank double-slider mechanism.

Fig. 5 is a schematic view of the structure of the turnover beam of example 2.

Fig. 6 is a schematic view of the structure of the turnover beam of embodiment 3.

Fig. 7 is a schematic diagram showing the relative positions of two magnets in embodiment 3.

FIG. 8 is a force analysis diagram of two magnets in example 3.

Reference numerals illustrate.

Detailed Description

In order to make the purpose and technical scheme of the invention clearer and easier to understand. The present invention will now be described in further detail with reference to the drawings and examples, which are given for the purpose of illustration only and are not intended to limit the invention thereto.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The invention provides a turnover beam structure for sealing a refrigerator door, which comprises a shell, an inner cavity, a sliding block and a driving mechanism, wherein the inner cavity is formed in the shell;

the shell is arranged on the first door body, the sliding block is arranged in the inner cavity, the driving mechanism is arranged on the shell, and the driving mechanism drives the sliding block to move between the bottom of the turnover beam and the refrigerator liner;

when the second door body applies force to the driving mechanism on the shell, the driving mechanism drives the sliding block to move downwards to contact with the refrigerator liner, so that a gap of the refrigerator is sealed; when the second door body is opened, the force applied by the driving mechanism is eliminated, and the sliding block of the inner cavity moves upwards.

Preferably, the first structure, the driving mechanism comprises a first button, a first spring mechanism and a crank double-slider mechanism;

the first telescopic button is arranged on one surface of the shell, which is contacted with the second door body, in the closed state of the refrigerator door, and a first spring mechanism is arranged in the first button; a crank double-slide block mechanism is arranged in the inner cavity;

the first spring mechanism comprises a spring seat and a first spring;

the crank double-slider mechanism comprises a shaft, a disc rotating around the shaft, a first connecting rod and a second connecting rod;

the shaft is fixed on the inner cavity wall, the disc is sleeved on the shaft, one ends of the first connecting rod and the second connecting rod are connected with the disc through a revolute pair, the other end of the first connecting rod is connected with the sliding block through a revolute pair, and the other end of the second connecting rod is connected with the button through a revolute pair.

Preferably, the second structure, the driving mechanism includes a second button, a second spring mechanism and a wedge mechanism; the second spring mechanism comprises a second spring, a third spring and a fourth spring;

the telescopic second button is arranged on one surface of the shell, which is contacted with the second door body, in the closed state of the refrigerator door, and extends into the inner cavity; the sliding block is perpendicular to the movement direction of the button, and the inclined plane of the end part of the sliding block and the inclined plane of the button form a wedge block mechanism; one end of the second spring is fixed on the wall of the inner cavity, the other end of the second spring is connected with the second button, one ends of the third spring and the fourth spring are fixed on two shoulders of the sliding block, and the other ends of the third spring and the fourth spring are fixed on a cross beam of the inner cavity.

Preferably, the third structure, the driving mechanism includes a third spring mechanism and a magnet pair; the third spring mechanism comprises a fifth spring and a sixth spring; the magnet pair comprises a first magnet and a second magnet;

one ends of the fifth spring and the sixth spring are fixed on two shoulders of the sliding block, and the other ends of the fifth spring and the sixth spring are fixed on a cross beam of the inner cavity; the first magnet is embedded in the first magnet sliding block, the second magnet is embedded in one surface of the second door body, which is contacted with the turnover beam, and the magnetic poles adjacent to the first magnet and the second magnet are the same-name magnetic poles.

Based on the above, the invention also provides a refrigerator, comprising the turnover beam structure for sealing the refrigerator door.

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

Example 1

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings.

Fig. 2 shows a schematic diagram of the internal structure of the turnover beam structure for sealing the refrigerator door, which comprises a shell 1, an inner cavity 2, a crank double-slider mechanism 3, a first button 4 and a spring mechanism 11; the crank double-slider mechanism consists of a shaft 6, a disc 8, a second connecting rod 9, a first connecting rod 8, a first slider 5 and a first button 4; the shaft is fixed on the inner cavity wall of the turnover beam, the disc is sleeved on the shaft and can rotate, one end of the second connecting rod 9 and one end of the first connecting rod 8 are connected with the disc through a revolute pair 14, the other end of the second connecting rod 9 is connected with the first button 4 through a revolute pair, and the other end of the first connecting rod 8 is connected with the first sliding block 5 through a revolute pair; the first sliding block 5 is made of a material with lower flexible heat conductivity, rollers 12 are arranged on two side surfaces of the first sliding block 5, and the rollers 12 are positioned in a chute 11 on the inner wall of the inner cavity 2 of the turnover beam; the upper and lower ends of the chute are respectively provided with a buffer pad 13.

When the refrigerator is closed, the left door is closed firstly, the overturning beam is opened simultaneously, then the right door is closed, the first button 4 on the overturning beam is pressed, the first button 4 moves inwards and compresses the spring mechanism 10, meanwhile, the first button 4 drives the crank double-slide block mechanism 3, and the first slide block 5 moves downwards to be in close contact with the refrigerator liner, so that leakage of cold air of the refrigerator is reduced.

When the refrigerator is opened, the right door is opened first, the first button 4 is driven by the restoring force of the spring mechanism 10 to move outwards, the first button 4 drives the crank double-slide block mechanism 3 reversely, the first slide block 5 moves upwards and retracts into the inner cavity 2 of the turnover beam, the turnover beam is separated from contact with the inner container of the refrigerator, and the left door can be opened smoothly.

Fig. 3 shows a schematic structural diagram of a spring mechanism, which mainly comprises a spring seat 14, a first spring 15 and a cross column 16 in the first button 4, wherein the spring seat is fixed on the side wall of the inner cavity 2 of the turnover beam, one end of the first spring 15 is fixed with the spring seat 14, and the other end of the first spring 15 is sleeved on the cross column 16 in the first button 4.

When the right door of the refrigerator is closed, the first button 4 is pressed and moves towards the inner cavity 2 of the turnover beam, and meanwhile, the button presses the first spring 15 to enable the first spring to have certain elastic deformation; when the refrigerator right door is opened, the first button 4 moves outside the inner cavity 2 under the restoring force of the first spring 15, and the spring returns to a relaxed state.

When the button is pressed by the right door of the refrigerator, the sliding block in the inner cavity moves downwards to contact with the refrigerator liner, so that the gap of the refrigerator is sealed; when the right door of the refrigerator is opened, the button is restored to the initial position, and the sliding block of the inner cavity moves upwards, so that the normal opening of the left door is not influenced. The turnover beam structure for sealing the refrigerator door has the advantages that the sealing performance of the refrigerator is better in a door closing state on the basis that the refrigerator body is not changed, the leakage of cold air is reduced, and the energy conservation performance of the refrigerator is improved.

In order to ensure that the mechanism has definite motion, the crank double-slide mechanism is simplified into a structure shown in fig. 4, wherein I is a first button 4, V is a first slide 5, II is a second connecting rod 9, III is a disc 7, IV is a first connecting rod 8, C is a shaft 6 and A, B, D, E are all revolute pairs, and F, G is a movable pair; as can be seen from FIG. 4 and the above analysis, the movable parts (n) of the mechanism comprise 5 parts I, II, III, IV and V; wherein the lower pair (pl) comprises a total of 7A, B, C, D, E, F, G; the mechanism has no high pair (ph); from the mechanism degree of freedom calculation formula, f=3n-2 pl-ph=3×5-2×7-0=1, so that the mechanism has a certain motion.

Example 2

As shown in fig. 5, similar to the basic principle of embodiment 1, embodiment 2 retains the housing 1, the inner cavity 2, the first button 4, the first slider 5, the roller 12, the chute 11, and the buffer pad 13 of embodiment 1, eliminating the crank double slider mechanism 3; the crank double-slide mechanism 3 in the embodiment 1 is replaced by a new second button 18 and a new slide 19, and a second spring 20, a third spring 21 and a fourth spring 22 are added, wherein one end of the second spring 20 is fixed on the wall of the inner cavity 2, the other end of the second spring is connected with the second button 18, one end of the third spring 21 and one end of the fourth spring 22 are fixed on two shoulders of the slide 19, and the other end of the third spring 21 and the other end of the fourth spring are fixed on a cross beam 23 of the inner cavity 2.

The specific working process is as follows: when the right door of the refrigerator is closed and presses the second button 18, the second button 18 moves toward the inner cavity 2 and compresses the second spring 20, and simultaneously the slider 19 moves downward and stretches the third springs 21 and 22 until the slider moves into close contact with the inner container of the refrigerator; when the right door of the refrigerator is opened, the second button 18 is moved outward of the inner cavity 2 by the restoring force of the second spring 20, and simultaneously the slider 19 is moved upward by the restoring force of the third springs 21, 22 until the springs are restored to the original state. At this time, the sliding block 19 is separated from the refrigerator liner, and the left door of the refrigerator can be smoothly opened.

Example 3

As shown in fig. 6-7, similar to the principle of embodiments 1 and 2, embodiment 3 retains the housing 1, the inner cavity 2, the first slider 5, the roller 12, the chute 11, and the buffer pad 13 of embodiment 1, eliminates the crank double slider mechanism 3, eliminates the first button 4, and eliminates the spring mechanism 10; in embodiment 3, the third spring 21, the fourth spring 22 and the cross beam 23 of embodiment 2 are reserved, a strip-shaped first magnet 24 is embedded in the embodiment 3 on the basis of the first sliders 5/19 of embodiments 1 and 2 to form a new slider 25, meanwhile, the same strip-shaped second magnet 26 is embedded in the surface of the right door of the refrigerator, which is contacted with the turnover beam, the relative positions of the two magnets are shown in fig. 7, and the adjacent magnetic poles of the two magnets are the same-name magnetic poles.

As shown in fig. 8, in the force analysis of the two magnets in the closed state in embodiment 3, when the refrigerator door is closed, the N pole of the second magnet 26 in the right door 30 is close to the N pole of the first magnet 24 in the flipping beam 28 (S pole is similar principle), and as can be seen from the force analysis in fig. 8, the second magnet 26 gives the first magnet 24 a repulsive force Fn to decompose Fn into a horizontal direction Fx and a vertical direction Fy, as shown in fig. 6, the sliding block 25 cannot move due to the limitation of the sliding chute 11 in the horizontal direction, and the vertical direction is connected by the third spring 21 and the fourth spring 22, and when the magnetic force Fx is greater than the elastic force, the sliding block 25 can move downward.

The specific operation of example 3 is as follows: when the right door 30 of the refrigerator is closed, the first magnet 24 and the second magnet 26 are close to each other, the first magnet 24 in the slider 25 is moved downward by the magnetic force from the second magnet 26 in the right door 30, and the third springs 21, 22 are stretched until the slider 25 is in contact with the refrigerator inner container 31; when the right door is opened, the first magnet 24 and the second magnet 26 are separated, the magnetic force is weakened, and the slider 25 moves upwards to be separated from the refrigerator liner 31 under the restoring force of the third spring 21 and the fourth spring 22.

The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that numerous modifications and adaptations can be made without departing from the principles of the invention and these modifications and adaptations are intended to be comprehended by the present invention.

The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes of the foregoing embodiments according to the technical matter of the present invention still fall within the scope of the technical solution of the present invention.

The above examples are provided for illustrating the technical aspects of the present invention and are not limited thereto, and although the present invention has been described in detail with reference to the above examples, one skilled in the art may make modifications and equivalents to the specific embodiments of the present invention without departing from the spirit and scope of the present invention, any modifications and equivalents thereof are within the scope of the appended claims.

Claims (2)

1. The turnover beam structure for sealing the refrigerator door is characterized by comprising a shell, an inner cavity, a sliding block and a driving mechanism;

the shell is arranged on the first door body, the sliding block is arranged in the inner cavity, the driving mechanism is arranged on the shell, a button is arranged on the shell, and the driving mechanism drives the sliding block to move between the bottom of the turnover beam and the refrigerator liner;

when the second door body applies force to the driving mechanism on the shell, and the button is pressed by the second door body, the driving mechanism drives the sliding block to move downwards to contact with the lower edge of the refrigerator liner, so that a gap between the upper overturning beam of the refrigerator and the lower edge of the refrigerator liner is sealed; when the second door body is opened, the force applied by the driving mechanism is removed, the button is restored to the initial position, and the sliding block of the inner cavity moves upwards;

two sides of the inner wall of the shell are provided with a section of slide rail on the moving track of the slide block; the side wall of the sliding block is provided with a roller, and the roller is arranged in the sliding rail;

buffer gaskets are arranged at the top end and the bottom end of the sliding rail;

the sliding block is made of elastic materials;

the cross section of the sliding block is smaller than the cross section of the inner cavity of the turnover beam;

the driving mechanism comprises a first button, a first spring mechanism and a crank double-slider mechanism;

the first telescopic button is arranged on one surface of the shell, which is contacted with the second door body, in the closed state of the refrigerator door, and a first spring mechanism is arranged in the first button; a crank double-slide block mechanism is arranged in the inner cavity;

the first spring mechanism comprises a spring seat and a first spring;

the crank double-slider mechanism comprises a shaft, a disc rotating around the shaft, a first connecting rod and a second connecting rod;

the shaft is fixed on the wall of the inner cavity, the disc is sleeved on the shaft, one ends of the first connecting rod and the second connecting rod are connected with the disc through a revolute pair, the other end of the first connecting rod is connected with the sliding block through a revolute pair, and the other end of the second connecting rod is connected with the button through a revolute pair;

the first button is hollow and semi-open, and is internally provided with a cross column which is matched with a spring on the spring seat to form a spring mechanism; or alternatively, the process may be performed,

the driving mechanism comprises a second button, a second spring mechanism and a wedge block mechanism; the second spring mechanism comprises a second spring, a third spring and a fourth spring;

the telescopic second button is arranged on one surface of the shell, which is contacted with the second door body, in the closed state of the refrigerator door, and extends into the inner cavity; the sliding block is perpendicular to the movement direction of the button, and the inclined plane of the end part of the sliding block and the inclined plane of the button form a wedge block mechanism; one end of the second spring is fixed on the wall of the inner cavity, the other end of the second spring is connected with the second button, one ends of the third spring and the fourth spring are fixed on two shoulders of the sliding block, and the other ends of the third spring and the fourth spring are fixed on a cross beam of the inner cavity.

2. A refrigerator comprising the flip-beam structure for refrigerator door sealing of claim 1.