CN106050039B - A kind of door of refrigerator body hinge component and there is its refrigerator - Google Patents

Abstract

The invention provides a door hinge assembly for a refrigerator, which includes: a hollow shell, fixed to the door of the refrigerator; a first sliding part; a second sliding part; the contact surface opposite the first sliding part and the second sliding part is The helical surfaces that cooperate with each other are provided with an elastic telescopic element on the helical surface of the first sliding part, and a guide groove and a stop extending from the guide groove toward the first sliding part are provided on the helical surface of the second sliding part. part; the guide groove defines the movement path of the elastic expansion part, and in the process of opening the refrigerator door, the first sliding part drives the elastic expansion part to move along the movement path to the limit part, so as to realize the hovering of the refrigerator door. Compared with the prior art, the limit part is set on the refrigerator door hinge assembly, so that the refrigerator door has a hovering position, which is convenient for users to take and place items. For the phenomenon of violent door opening, even if the opening force overcomes the suspension of the hinge assembly The existence of the limit part will also slow down the opening speed of the door body, and play a buffer role on violent door opening.

Description

A door hinge assembly for a refrigerator and a refrigerator having the same

technical field

The invention relates to the technical field of refrigeration equipment, in particular to a door hinge assembly for a refrigerator and a refrigerator having the same.

Background technique

At present, refrigerators all realize the rotation of the door body through hinges to realize the purpose of opening and closing the door. During use, when the refrigerator door is opened to a certain angle, it will be in a state of free movement. When users take and place items, they need to fix the door with one hand and use the other hand to take and place items, which is very inconvenient. In addition, there may also be situations where the refrigerator door collides with foreign objects when the door is opened due to the excessively large opening angle of the refrigerator door. Based on this, how to enable the refrigerator door to hover at a set opening angle has become an urgent technical problem to be solved.

Contents of the invention

One of the objectives of the present invention is to provide a refrigerator door hinge assembly, which can realize the hovering of the refrigerator door when it is opened at a certain angle, and is convenient for users to pick and place items.

The object of the present invention is also to provide a refrigerator.

In order to achieve one of the objectives of the above invention, the present invention provides a door hinge assembly for a refrigerator, which includes:

a hollow shell, fixed to the refrigerator door;

The first sliding part is arranged in the hollow shell and fixed with the hollow shell;

The second sliding part is arranged in the hollow casing opposite to the first sliding part, and the second sliding part is fixed to the refrigerator box;

Wherein, the opposite contact surface of the first sliding part and the second sliding part is a helical surface that cooperates with each other, and an elastic stretcher is provided on the helical surface of the first sliding part, and A guide groove and a limiting part extending from the guide groove toward the first sliding part are provided on the helical surface;

The guide groove defines the movement path of the elastic expansion member. When the refrigerator door is opened, the first sliding part slides relative to the second sliding part, driving the elastic expansion member along the The moving path is moved into the limiting part, so as to realize the hovering of the refrigerator door.

As a further improvement of the present invention, the helical surfaces of the first sliding part and the second sliding part both include a first horizontal section and a second horizontal section extending horizontally and connecting the first horizontal section and the second horizontal section And a lifting section extending obliquely towards the limiting portion.

As a further improvement of the present invention, a mounting hole extends inwardly from the helical surface of the first sliding part, and the elastic telescopic part includes an elastic part and a spherical rolling part, one end of the elastic part is connected with the spherical rolling part, and the other One end is fixed in the mounting hole.

As a further improvement of the present invention, the limiting part is located at the second horizontal section of the helical surface of the second sliding part, and the limiting parts are two sides extending from the guiding groove toward the first sliding part. Limiting pits formed by ribs.

As a further improvement of the present invention, the distance between the two convex ribs is less than or equal to the diameter of the spherical rolling portion, so that the limiting recess accommodates at least part of the spherical rolling portion.

As a further improvement of the present invention, the outer periphery of the first sliding part has a protruding part, and the inner wall of the hollow housing is provided with a recessed part adapted to the protruding part, through which the protruding part and The cooperation of the recessed part fixes the first sliding part in the hollow housing.

As a further improvement of the present invention, the end of the second sliding part fixed to the refrigerator box is provided with a positioning hole, and the cross section of the positioning hole is non-circular.

As a further improvement of the present invention, the hinge assembly for a refrigerator further includes an upper cover and a lower cover for closing the upper and lower ends of the hollow casing, and the lower cover has a connection with the second sliding part. Locate the hole to match the opening.

As a further improvement of the present invention, when the opening angle of the refrigerator door is smaller than the first angle, the second sliding part has a tendency to slide relative to the first sliding part to realize automatic closing of the refrigerator door; When the opening angle of the door is equal to the second angle, the spherical rolling part moves into the limit part to realize the hovering of the refrigerator door; when the opening angle of the refrigerator door is greater than the first angle but less than the second When angled, the refrigerator door is in a state of free movement.

In order to achieve the above-mentioned another object of the invention, the present invention provides a refrigerator, including any one of the above

The beneficial effect of the present invention is that: since the limit part is set on the hinge assembly of the refrigerator door body, the refrigerator door body has a hovering position, which is convenient for users to take and place items. The hovering force of the components and the existence of the limit part will also generate a certain reaction force on the door body, slow down the opening speed of the door body, and play a buffer role in violent opening.

Description of drawings

Fig. 1 is a schematic structural view of a specific embodiment of a refrigerator door hinge assembly of the present invention;

Fig. 2 is an exploded schematic diagram of the refrigerator door hinge assembly shown in Fig. 1;

Fig. 3 is a structural schematic diagram of the first sliding part;

Fig. 4 is a schematic cross-sectional view of the first sliding part;

Fig. 5 is a schematic bottom view of the first sliding part;

Fig. 6 is a schematic top view of a door hinge assembly for a refrigerator;

Fig. 7 is a structural schematic diagram of a second sliding part;

Fig. 8 is a schematic top view of the second sliding part;

Fig. 9 is a schematic bottom view of the second sliding part.

detailed description

The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

The terms used herein to denote relative spatial positions such as "upper", "above", "under", "under", etc. are for convenience of description to describe the relative position of one element or feature relative to another as shown in the drawings. Relationships of units or features. The terms of spatial relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

And, it should be understood that although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from one another. For example, a first sliding part may be called a second sliding part, and similarly, the second sliding part may also be called a first sliding part, which does not depart from the protection scope of the present application.

Referring to the specific implementation of a refrigerator door hinge assembly shown in Figures 1-2. The refrigerator door hinge assembly 1 is arranged in a refrigerator door (not shown), and is used for connecting a refrigerator box (not shown) and the door. The refrigerator door hinge assembly 1 is L-shaped, and includes a hollow shell 10 and an upper cover 14 and a lower cover 15 for closing the upper and lower ends of the hollow shell 10 . A first sliding part 11, a second sliding part 12, a spring 13, an elastic expansion part 16 and a hinge shaft 17 are arranged in the hollow housing 10, wherein the first sliding part 11 is fixed to one end of the hinge shaft 17, and the second The sliding part 12 is disposed opposite to the first sliding part 11 , and the opposing contact surfaces of the first sliding part 11 and the second sliding part 12 are helical surfaces that cooperate with each other. A fixing piece (not shown) is provided on the refrigerator box (not shown), and the second sliding part 12 is fixed to the refrigerator box through the fixing piece.

Referring to Fig. 2 to Fig. 6, the first sliding part 11 is generally cylindrical and has a plurality of protruding parts 113 on its outer periphery, and the inner wall of the hollow shell 10 is provided with fittings for the protruding parts 113. The recessed part 101 fixes the first sliding part 11 in the hollow casing 10 through the cooperation of the protruding part 113 and the recessed part 101 . The upper part of the first sliding part 11 is fixed to one end of the hinge shaft 17 , so that the first sliding part 11 can rotate along with the rotation of the hollow casing 10 and the hinge shaft 17 .

Further, the lower end surface of the first sliding part 11 is set as a helical surface, which is defined as the first helical surface 112, and a mounting hole 111 extending inwardly from the first helical surface 112 is used to accommodate the elastic expansion part 16, the elastic The telescopic member 16 includes an elastic member 161 and a spherical rolling portion 162 , one end of the elastic member 161 is connected to the spherical rolling portion 162 , and the other end is fixed in the installation hole. Preferably, the elastic member 161 is a spring, and the spherical rolling portion 162 is a ball.

Referring to Figures 7 to 9, the second sliding part 12 is generally cylindrical, and one end surface has a second helical surface 121 matching the first helical surface 112, and the other end passes through a fixing piece (not shown) Fix with the refrigerator box. Further, a guiding groove 122 and a limiting portion 123 extending from the guiding groove 122 toward the first sliding portion 11 are provided on the second helical surface 121 . The guide groove 122 defines the movement path of the elastic expansion member 16. When the refrigerator door is opened, the first sliding part 11 slides relative to the second sliding part 12, driving the elastic expansion member 16 to move to the limit part along the movement path. In 123, specifically, the first sliding part 11 can drive the spherical rolling part 162 to move into the limiting part 123 along the movement path, so as to realize the hovering of the refrigerator door.

Furthermore, the limiting portion 123 is a limiting pit formed by two convex ribs extending from the guide groove 122 toward the first sliding portion 11 , and the distance between the two convex ribs is less than or equal to that of the spherical rolling portion 162 . The diameter is such that the limiting recess accommodates at least part of the spherical rolling portion 162 .

The second sliding part 12 is provided with a positioning hole 124 at the fixed end of the refrigerator box fixing part. Specifically, the cross section of the positioning hole 124 is non-circular in design. The refrigerator box always maintains a fixed angle and does not rotate, realizing the fixing of the second sliding part 12 and the refrigerator box. In this embodiment, the cross-section of the positioning hole 124 is a default circular design, that is, with the diameter of the circle as the center, a part is symmetrically removed on both sides. Of course, in other embodiments of the present invention, The cross-section of the positioning hole 124 can also be other suitable shapes, as long as it can be locked with the fixing member.

In particular, both the first helical surface 112 and the second helical surface 121 include a first horizontal segment and a second horizontal segment extending horizontally and a Lifting section. The existence of the lifting section makes the first horizontal section and the second horizontal section have a height difference. The installation hole 111 of the first helicoid 112 is disposed on the first horizontal section 1121 of the first helicoid 112 , and the limiting portion 123 on the second helicoid 121 is disposed on the second horizontal section 1213 of the second helicoid 121 .

Continuing to refer to Fig. 1, in the process of opening the refrigerator door, since the hinge assembly 1 is fixed on the refrigerator door (not shown) with screws, the components of the hinge assembly 1 include a hollow shell 10 , the hinge shaft 17, and the first sliding part 11 will all rotate together with the door body. When the opening angle of the door of the refrigerator is smaller than the first angle, the first horizontal section 1121 of the first helical surface 112 is in contact with at least part of the lifting section 1212 of the second helicoidal surface 121, and the first sliding part 11 has a Relative to the sliding trend of the first sliding part 11 to realize the automatic closing of the refrigerator door; and then continue to open the door, the first sliding part 11 continues to rotate relative to the second sliding part 12, and the spherical rolling part 162 is driven by the first sliding part 11 Move toward the limiting part 123 along the moving path, when the refrigerator door opening angle is equal to the second angle, the spherical rolling part 162 moves to the center of the limiting part 123, and is locked in the limiting pit of the limiting part 123, Realize the hovering of the refrigerator door, which is convenient for users to pick and place items; when the opening angle of the refrigerator door is greater than the first angle but less than the second angle, the first horizontal section 1121 of the first helical surface 112 and at least part of the second helicoidal surface The second horizontal section 1213 of 121 contacts, and the refrigerator door body is in a state of free movement. Preferably, in this embodiment, the first angle is 45 degrees, and the second angle is 90 degrees. Of course, in other implementation manners, the opening angle of the door of the refrigerator can be set arbitrarily according to user requirements.

When the opening angle of the refrigerator door body is equal to the second angle, the spherical rolling part moves to the middle of the limit part 123 and is locked. If the refrigerator door hovers, if the door continues to be opened or the door is closed, the spherical rolling part needs to be manually rolled. Part 162 applies a certain amount of force, and the spherical rolling part 162 compresses the elastic member 161 after receiving the force, so that the spherical rolling part 162 breaks away from the limiting pit, and the refrigerator door can continue to move. This design is aimed at the phenomenon of violent door opening. Even if the opening force overcomes the hovering force of the hinge assembly, the existence of the limit part will generate a certain reaction force on the door body, slow down the opening speed of the door body, and play a buffer role in violent door opening.

In addition, the refrigerator hinge assembly 1 also includes an upper cover body 14 and a lower cover body 15 for closing the upper and lower ends of the hollow casing 10, the lower cover body 15 has an opening 151 matching the positioning hole 124 of the second sliding part 12 , the fixing member (not shown) on the refrigerator box passes through the opening 151 and is fixed to the positioning hole 124 .

Correspondingly, the present invention also provides a refrigerator (not shown in the figure). By adopting the refrigerator door hinge assembly introduced in the above-mentioned embodiments, the refrigerator can obtain the functions of the refrigerator door hinge assembly in the above-mentioned embodiments. In addition, since no improvement has been made to other structures or functions of the refrigerator, other structures of the refrigerator will not be described in detail here.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A kind of 1. door of refrigerator body hinge component, for connecting the casing and door body of refrigerator, it is characterised in that the refrigerator hinge Component includes：

   Hollow housing, fixed with the refrigerator door；

   First sliding part, it is arranged in the hollow housing, and is fixed with the hollow housing；

   Second sliding part, be oppositely disposed with first sliding part in the hollow housing, and second sliding part with The refrigerator body is fixed；

   Wherein, first sliding part and the relative contact surface of second sliding part are the helicoid that cooperates, described The helicoid of first sliding part is provided with an elastic telescopic part, be provided with the helicoid of second sliding part guide channel and The limiting section extended from the guide channel towards first sliding part；

   The guide channel defines the mobile route of the elastic telescopic part, described during the refrigerator door is opened Relatively described second sliding part of first sliding part slides, and drives the elastic telescopic part to be moved to the limit along the mobile route In the portion of position, to realize the hovering of the refrigerator door.
2. 2. door of refrigerator body hinge component according to claim 1, it is characterised in that：First sliding part and described The helicoid of two sliding parts include horizontal-extending first horizontal segment and the second horizontal segment and the connection first horizontal segment and Second horizontal segment and the lifting section that extension is tilted towards the limiting section.
3. 3. door of refrigerator body hinge component according to claim 2, it is characterised in that：By the spiral of first sliding part Inward-facing to be extended with a mounting hole, the elastic telescopic part includes an elastic component and spherical rolling portion, one end of the elastic component It is connected with spherical rolling portion, the other end is fixed in the mounting hole.
4. 4. door of refrigerator body hinge component according to claim 3, it is characterised in that：The limiting section is located at described second Second horizontal segment of sliding part helicoid, the limiting section are two extended from the guide channel towards first sliding part The spacing pit that bar fin is formed.
5. 5. door of refrigerator body hinge component according to claim 4, it is characterised in that：The distance between described two fins Less than or equal to the diameter in the spherical rolling portion so that the spacing pit accommodates at least partly described spherical rolling portion.
6. 6. door of refrigerator body hinge component according to claim 1, it is characterised in that：The periphery tool of first sliding part There is protuberance, the inwall of the hollow housing is provided with the depressed part being adapted to the protuberance, passes through the protuberance and institute First sliding part is fixed in the hollow housing by the cooperation for stating depressed part.
7. 7. door of refrigerator body hinge component according to claim 1, it is characterised in that：Second sliding part and the ice One end that box body is fixed is provided with a positioning hole, and the cross section of the positioning hole is non-circular.
8. 8. door of refrigerator body hinge component according to claim 7, it is characterised in that：The hinge for refrigerator component also wraps The upper cover body and lower cover of the upper and lower ends for closing the hollow housing are included, the lower cover has to be slided with described second The opening of the positioning hole matching in portion.
9. 9. door of refrigerator body hinge component according to claim 3, it is characterised in that：When the refrigerator door opening angle During less than first angle, second sliding part has the trend that relative first sliding part slides to realize the refrigerator door certainly It is dynamic to close；When the refrigerator door opening angle is equal to second angle, the spherical rolling portion is moved in the limiting section, Realize the hovering of the refrigerator door；When the refrigerator door opening angle is more than first angle and is less than second angle, institute State refrigerator door and be in free movement state.
10. 10. a kind of refrigerator, it is characterised in that including the door of refrigerator body hinge component described in as above any one claim.