Hinge device for preventing jamming and refrigerator containing the same

Abstract

A hinge device for preventing door seal, comprising a hinge, a sleeve and a bushing; the hinge is composed of a hinge body and a hinge shaft, the hinge body comprises a vertical part and a horizontal part, and the hinge shaft is arranged at one end of the horizontal part away from the vertical part; a limiting boss is provided on the hinge shaft, and the boss is divided into an upper and lower layer; a self-locking mechanism and an eccentric mechanism are provided on the bushing, one end of the eccentric mechanism is connected to the bushing, and the other end is connected to the self-locking structure; the sleeve is arranged outside the upper boss of the hinge shaft; a refrigerator is provided with at least one hinge device for preventing door seal; the hinge device for preventing door seal of the present invention, by arranging a boss on the hinge shaft and an eccentric mechanism in the bushing, makes the axis center displace a short distance during the rotation movement of the door body, thereby avoiding the problem of door seal; and the hinge device is arranged in the door body, hidden and invisible, and has no effect on the appearance of the refrigerator.

Description

Technical Field

[0001] The invention relates to the field of refrigerator structure design, in particular to a hinge device for preventing a refrigerator door from being stuck and a refrigerator containing the hinge device. Background Art

[0002] Currently in the refrigerator market, as the refrigerator is used for a longer time, the door seal of the refrigerator door and the body will get stuck when closing, making it impossible to close the refrigerator tightly, resulting in problems such as abnormal noise and cold leakage in the refrigerator, which greatly reduces the user experience.

[0003] The existing methods for solving the door seal problem are relatively traditional. The method of applying lubricating oil on the door seal is generally adopted. However, this method is prone to cause leakage of lubricating oil, which affects the appearance of the refrigerator and makes the user experience worse. After long-term use, as the lubricating oil evaporates, the fault will reappear. Therefore, we now need a device that can directly solve the door seal problem without affecting the user experience to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that the refrigerator door is easily stuck when opening and closing in the prior art, the present invention provides a hinge device for preventing the door from being stuck and a refrigerator containing the device.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a hinge device to prevent door jamming, comprising a hinge, a sleeve and a shaft sleeve; the hinge is composed of a hinge body and a hinge shaft, the hinge body comprises a vertical part and a horizontal part, the hinge shaft is arranged at one end of the horizontal part away from the vertical part; a limiting boss is provided on the hinge shaft, the boss is divided into an upper and a lower layer, respectively, an upper boss and a lower boss; a self-locking mechanism and an eccentric mechanism are provided on the shaft sleeve, one end of the eccentric mechanism is provided with a limiting block connected to the shaft sleeve, and the other end is connected to the self-locking structure; the sleeve is arranged outside the upper boss of the hinge shaft; when closing the door, when the door body and the box body of the refrigerator are from the maximum door opening angle to the middle angle, the shaft sleeve is under the limiting action of the eccentric mechanism, and the door body rotates relative to point A of the hinge shaft, and the point A is the axis of the hinge shaft;

[0006] When the angle between the door and the body of the refrigerator is smaller than the middle angle, the limit block of the eccentric mechanism disengages from the lower boss, and at the same time the self-locking structure cooperates with the hinge to lock the door, and the axis of the door returns to point B to complete the door closing. Point B is the axis of the sleeve. Since point A is farther away from the body than point B, the effect of preventing the door from getting stuck during the door closing process is achieved. The range of the middle angle is 1-130°, which can be adjusted according to the actual situation of the refrigerator.

[0007] Furthermore, there are at least two upper bosses and at least two lower bosses.

[0008] Furthermore, the upper boss and the lower boss are symmetrically arranged with the hinge axis as the center.

[0009] Furthermore, the inner diameter of the shaft sleeve is larger than the outer diameter of the upper layer of the hinge shaft.

[0010] Furthermore, the end surface of the eccentric mechanism is in an eccentric arc shape, and the distance from the end surface of the eccentric mechanism to the axis center of the hinge shaft gradually increases.

[0011] Furthermore, the inner wall of the sleeve is in contact with and fits with the upper boss of the hinge shaft.

[0012] Furthermore, the self-locking mechanism is C-shaped and is made of wear-resistant material such as POM, PA66, etc.

[0013] Furthermore, two circular holes are provided at one end of the vertical portion away from the horizontal portion, and the circular holes are connected with bolts, and the hinge is connected to the refrigerator body through the bolts.

[0014] A second aspect of the present invention provides a refrigerator, which is provided with at least one hinge device for preventing door jamming, wherein the hinge is fixedly connected to the housing, and the shaft sleeve is fixedly connected to the sleeve.

[0015] Beneficial effects of the present invention:

[0016] (1) The hinge device for preventing door jamming described in the present invention provides a boss on the hinge shaft and an eccentric mechanism in the shaft sleeve, so that the axis of the door body is displaced by a short distance during the rotation of the door body, thereby avoiding the problem of door jamming.

[0017] (2) The hinge device for preventing the Carmen seal of the present invention has a simple structure and is easy to install, and can permanently solve the problem of the Carmen seal at a relatively low cost.

[0018] (3) The refrigerator with the hinge device for preventing door jamming described in the present invention is arranged inside the door body, hidden and invisible, and has no effect on the appearance of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 Schematic diagram of the connection between the hinge device and the box body in a preferred embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the assembly of a preferred embodiment of the present invention;

[0022] Figure 3 is a three-dimensional view of a sleeve of a preferred embodiment of the present invention;

[0023] Figure 4 is a three-dimensional view of a hinge of a preferred embodiment of the present invention;

[0024] Figure 5 is a three-dimensional view of a sleeve of a preferred embodiment of the present invention;

[0025] Figure 6 is a two-dimensional schematic diagram of the rotation axis when the door box angle is 2° in a preferred embodiment of the present invention;

[0026] Figure 7 is a two-dimensional schematic diagram of the rotation axis when the door box angle is 0° in a preferred embodiment of the present invention;

[0027] Figure 8 is a schematic diagram of the door closing process of a preferred embodiment of the present invention;

[0028] Fig. 9 is an enlarged view of the hinge device during the door closing process of the preferred embodiment of the present invention;

[0029] Fig.10 is a schematic diagram of a door body in a closed position according to a preferred embodiment of the present invention;

[0030] Fig.11 is an enlarged view of the hinge device when the door body of the preferred embodiment of the present invention is in a closed position;

[0031] In the figure, 1, door body, 2, bushing, 2-1, self-locking mechanism, 2-2, eccentric mechanism, 3, hinge body, 3-1, horizontal part, 3-2, hinge shaft, 3-3, round hole, 3-4, vertical part, 3-5, upper boss, 3-6, lower boss, 4, box body, 5, bolt, 6, door seal, 7, sleeve. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "horizontal", "top", "inside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 1-11 As shown, a hinge device for preventing card door seal includes a hinge, a sleeve 7 and a sleeve 2; the hinge consists of a hinge body 3 and a hinge shaft 3-2, the hinge body 3 includes a vertical part 3-4 and a horizontal part 3-1, and the hinge shaft 3-2 is arranged at one end of the horizontal part 3-1 away from the vertical part 3-4; a limiting boss is provided on the hinge shaft 3-2, and the boss is divided into an upper boss 3-5 and a lower boss 3-6. A self-locking mechanism 2-1 and an eccentric mechanism 2-2 are provided on the sleeve 2, one end of the eccentric mechanism 2-2 is connected to the sleeve 2, and the other end is connected to the self-locking structure; the sleeve 7 is arranged outside the upper boss 3-5 of the hinge shaft 3-2.

[0036] There are at least two upper bosses 3-5 and at least two lower bosses 3-6; the upper bosses 3-5 and the lower bosses 3-6 are symmetrically arranged with the hinge shaft 3-2 as the center; the inner diameter of the sleeve 2 is larger than the outer diameter of the upper layer of the hinge shaft 3-2.

[0037] The end face of the eccentric mechanism 2-2 is in the shape of an eccentric arc, and the distance from the end face of the eccentric mechanism 2-2 to the axis of the hinge shaft 3-2 gradually increases. The inner wall of the sleeve 7 is in contact with the upper boss 3-5 of the hinge shaft 3-2. The self-locking mechanism 2-1 is C-shaped and made of wear-resistant material. Two circular holes 3-3 are provided at one end of the vertical portion 3-4 away from the horizontal portion 3-1, and the circular holes 3-3 are connected with bolts 5, and the hinge is connected to the refrigerator body 4 through the bolts 5. The maximum height of the eccentric mechanism 2-2 of the sleeve 2 is not easy to be too large, so as to ensure the structural strength of the sleeve 2 itself and prevent the self-locking mechanism 2-1 of the sleeve 2 from failing.

[0038] A refrigerator is provided with at least one hinge device for preventing door jamming. The hinge is fixedly connected to a box body 4, and the shaft sleeve 2 is fixedly connected to a sleeve 7.

[0039] The door body 1 is arranged on the hinge. When the door body 1 moves from the maximum door opening angle to the door box angle 2°, the sleeve 2 drives the door body 1 to rotate around the point A of the hinge shaft 3-2 as the axis under the limiting action of the eccentric mechanism 2-2 (such as Figure 5 and Fig. 9 As shown); when the refrigerator door 1 moves to a door box angle less than 2° (as shown Figure 5 As shown in the figure, the limit block of the eccentric mechanism 2-2 of the sleeve 2 is out of contact with the lower boss 3-6 of the hinge shaft 3-2. At the same time, the self-locking mechanism 2-1 on the left side of the sleeve 2 is interference-fitted with the hinge body 3 to complete the locking function of the door body 1, and the axis of the door body 1 returns to point B (as shown in the figure). Figure 7 As shown), the door closing action is completed; the dividing angle between the above two stages of the door closing process is 2°, which is only used as a parameter to explain the present invention and cannot be used as a limitation of the present invention.

[0040] In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments.

[0041] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hinge device for preventing card door seal, characterized in that: It comprises a hinge, a sleeve (7) and a shaft sleeve (2); The hinge is composed of a hinge body (3) and a hinge shaft (3-2); the hinge body (3) comprises a vertical portion (3-4) and a horizontal portion (3-1); the hinge shaft (3-2) is arranged at an end of the horizontal portion (3-1) away from the vertical portion (3-4); a limiting boss is provided on the hinge shaft (3-2); the limiting boss is divided into an upper and lower layer, namely an upper boss (3-5) and a lower boss (3-6); The shaft sleeve (2) is provided with a self-locking mechanism (2-1) and an eccentric mechanism (2-2); one end of the eccentric mechanism (2-2) is provided with a limit block connected to the shaft sleeve (2), and the other end is connected to the self-locking mechanism (2-1); The sleeve (7) is arranged outside the upper boss (3-5) of the hinge shaft (3-2); When the door is closed, when the door body (1) and the refrigerator body (4) are moved from the maximum door opening angle to the middle angle, the shaft sleeve (2) is limited by the eccentric mechanism (2-2), and the door body (1) rotates relative to point A of the hinge shaft (3-2), and point A is the axis of the hinge shaft; When the angle between the door body (1) and the refrigerator body (4) is smaller than the middle angle, the limit block of the eccentric mechanism (2-2) is out of contact with the lower boss (3-6), and at the same time, the self-locking mechanism (2-1) cooperates with the hinge to complete the locking of the door body (1), and the axis of the door body (1) returns to point B to complete the door closing, and point B is the axis of the shaft sleeve; at least two upper bosses (3-5) are provided, and at least two lower bosses (3-6) are provided; The upper boss (3-5) and the lower boss (3-6) are symmetrically arranged with the hinge axis (3-2) as the center.

2. The hinge device for preventing card door seal according to claim 1, characterized in that: The inner diameter of the shaft sleeve (2) is greater than the outer diameter of the upper layer of the hinge shaft (3-2).

3. The hinge device for preventing jamming according to claim 1, characterized in that: The end surface of the eccentric mechanism (2-2) is in the shape of an eccentric circular arc, and the distance from the end surface of the eccentric mechanism (2-2) to the axis of the hinge shaft (3-2) gradually increases.

4. The hinge device for preventing jamming according to claim 1, characterized in that: The inner wall of the sleeve (7) is in contact with and fits with the upper boss (3-5) of the hinge shaft (3-2).

5. The hinge device for preventing jamming according to claim 1, characterized in that: The self-locking mechanism (2-1) is C-shaped and is made of wear-resistant material.

6. The hinge device for preventing jamming according to claim 1, characterized in that: A circular hole (3-3) is provided at one end of the vertical portion (3-4) away from the horizontal portion (3-1), and a bolt (5) is connected to the circular hole (3-3).

7. A refrigerator, characterized in that: It is provided with at least one hinge device for preventing cardan seal according to any one of claims 1 to 6, wherein the hinge is fixedly connected to the box body (4), and the shaft sleeve (2) is fixedly connected to the sleeve (7).

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