CN107932819B

CN107932819B - Refrigerator and sealing device for material injection hole thereof

Info

Publication number: CN107932819B
Application number: CN201711047381.9A
Authority: CN
Inventors: 郭锦娜; 郭磊; 马共浩
Original assignee: Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2017-10-31
Filing date: 2017-10-31
Publication date: 2020-03-17
Anticipated expiration: 2037-10-31
Also published as: CN107932819A

Abstract

The invention provides a refrigerator and a sealing device for a material injection hole thereof, and the sealing device is used for sealing the material injection hole of the refrigerator and comprises a bracket fixed on the material injection hole and a sealing cover connected to the bracket in a relatively pivoting manner, wherein the sealing cover is arranged on one side of the bracket facing to an inner container of the refrigerator and falls down under the action of gravity to seal the material injection hole in a free state. Compared with the prior art, the sealing device provided by the invention can be simply and conveniently arranged on the material injection hole of the refrigerator body with lower manufacturing cost and assembly cost, can better seal the material injection hole, and overcomes the defects and shortcomings of the prior art.

Description

Refrigerator and sealing device for material injection hole thereof

Technical Field

The invention relates to the field of refrigeration equipment, in particular to a refrigerator and a sealing device for a material injection hole of the refrigerator.

Background

In the manufacturing process of the existing refrigerator, a foaming material is added between a refrigerator body and an inner container of the existing refrigerator to form a foaming layer so as to enhance the heat preservation performance of the refrigerator. However, during the foaming process, the foaming material may overflow from the injection hole due to volume expansion, resulting in leakage of the foaming material and environmental pollution.

At present, the leakage problem of the foaming material is solved by sticking a unidirectional sheet on a material injection hole. The unidirectional sheet is a very thin metal sheet and is connected with the edge of the material injection hole in a spot welding mode. When the material injection gun is inserted, the one-way sheet is opened, and when the material injection gun is withdrawn, the one-way sheet is covered, so that the effect of preventing foaming flash is achieved. However, unidirectional sheets have mainly the following disadvantages: firstly, the labor cost is high, the unidirectional sheet and the bottom steel link need spot welding, and the labor cost of spot welding is very high; secondly, the production efficiency is influenced by the increase of working procedures of spot welding; thirdly, the bottom steel has the phenomenon that the one-way sheet falls off in the transportation process, so that the reject ratio of the product is increased; fourthly, the sealing is not tight, after the injection gun head is withdrawn from the box body, the one-way sheet is slowly reset or is insufficiently reset, and the condition that the foaming material flows to the injection hole and the one-way sheet does not seal the injection hole often occurs.

In view of the above, it is desirable to provide a novel sealing device for a material filling hole of a refrigerator to solve the above problems.

Disclosure of Invention

The invention aims to provide a novel sealing device for a material injection hole of a refrigerator, which can solve the problem of poor sealing of the material injection hole at lower cost.

In order to achieve the purpose, the invention adopts the following technical scheme: a sealing device is used for sealing a material injection hole of a refrigerator and comprises a support fixed on the material injection hole and a sealing cover connected to the support in a relatively pivoting mode, wherein the sealing cover is arranged on one side, facing an inner container of the refrigerator, of the support and falls under the action of gravity in a free state to seal the material injection hole.

As a further improved technical scheme of the invention, the bracket is provided with a bulge along the circumferential direction of the material injection hole, the periphery of the sealing cover is provided with a flanging, and the flanging is buckled on the bulge in the free state.

As a further improved technical scheme of the invention, the height of the protrusion increases from the joint of the sealing cover to the opening opposite to the joint, and the protrusion is intersected with the mounting plane of the bracket to form an included angle.

As a further improved technical scheme of the invention, the bracket is provided with a shielding part, and the shielding part extends from the mounting plane of the bracket to one side of the refrigerator inner container.

As a further improved technical solution of the present invention, the height value of the shielding portion is largest at the opening of the sealing cover.

As a further improved technical scheme of the invention, the bracket comprises an installation part arranged on one side opposite to the sealing cover, and the sealing device is detachably fixed on the material injection hole through the installation part.

As a further improved technical solution of the present invention, the bracket includes an opening corresponding to the material injection hole, the mounting portion includes a flange edge extending radially outward from an edge of the opening, and a pair of opposite lugs, the lugs and the flange edge define an accommodating space coaxial with the opening, and the accommodating space receives the edge of the material injection hole through a rotational movement of the sealing device.

As a further improved technical scheme of the invention, the sealing cover is hinged to the bracket.

As a further improvement of the invention, the closure is made of plastic material.

In order to achieve the purpose, the invention also provides a refrigerator, which comprises a refrigerator body, wherein the refrigerator body is provided with a material injection hole; the inner container is arranged in the box body and defines a foaming space together with the box body; the sealing device is used for sealing the material injection hole.

The invention has the beneficial effects that: compared with the prior art, the sealing device provided by the invention can be simply and conveniently arranged on the material injection hole of the refrigerator body with lower manufacturing cost and assembly cost, can better seal the material injection hole, and overcomes the defects and shortcomings of the prior art.

Drawings

FIG. 1 is a schematic view of the inside of a bottom plate of a refrigerator cabinet in a preferred embodiment of the present invention;

FIG. 2 is an outside schematic view of the bottom panel of the refrigerator cabinet shown in FIG. 1;

FIG. 3 is a schematic view of the construction of a sealing device in a preferred embodiment of the present invention;

FIG. 4 is a schematic view of the structure of the holder of the closure shown in FIG. 3;

FIG. 5 is a rear view of the bracket shown in FIG. 4;

fig. 6 is a schematic view showing the structure of a sealing cap of the closure apparatus shown in fig. 3.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

Terms such as "upper," "above," "lower," "below," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms 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. Also, it should be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by these terms. These terms are only used to distinguish these descriptive objects from one another.

A refrigerator according to a preferred embodiment of the present invention is provided, and fig. 1 is a schematic view of an inside of a bottom plate of a refrigerator body 1 according to a preferred embodiment of the present invention; fig. 2 is a schematic view of the outside of the bottom plate of the cabinet 1 of the refrigerator according to the preferred embodiment of the present invention, which comprises: a box body 1, an inner container (not shown in the figure) and a sealing device 2.

The box body 1 is provided with a material injection hole 10 for allowing the foaming material to enter the refrigerator. In the present embodiment, the injection hole 10 is substantially a circular hole, and the edge of the circular hole has two symmetrically arranged notches 100, and the notches 100 are designed to facilitate the installation and fixation of the closure 2. Preferably, the notch 100 is arranged concentrically with the edge of the circular hole, and the notch 100 presents a circular arc segment. The material injection hole 10 is arranged on the bottom plate of the box body 1 and is arranged in the middle of the bottom plate and close to the edge so as to facilitate material injection. The inner bag sets up in the 1 back of the box and inject the foaming space jointly with box 1, and closing device 2 installs behind notes material hole 10, inject the circular shape sprue, the sprue with notes material hole 10 is concentric, and in this embodiment, the sprue is unanimous with the circular port of the notes material hole 10 of detaching breach 100. The foaming material enters the foaming space from the injection port and completely fills the foaming space to form a foaming layer. Of course, in other embodiments, the material inlet and the material inlet hole 10 may be completely identical due to the difference in the installation manner of the sealing device 2.

Referring to fig. 3, a sealing device 2 according to a preferred embodiment of the present invention is provided, wherein the sealing device 2 is used for sealing a material injection hole 10 of a refrigerator body 1 to prevent a leakage of a foaming material after the material injection is completed. The sealing device 2 comprises a bracket 21 arranged at the edge of the material injection hole 10 and a sealing cover 22 which is relatively pivotally connected to the bracket 21, wherein the sealing cover 22 is arranged at one side of the bracket 21 facing the refrigerator liner and falls under the action of gravity in a free state to seal the material injection hole 10.

Specifically, as shown in fig. 2 and 5, the bracket 21 includes a mounting portion 214 disposed on an opposite side of the sealing cover 22, and the sealing device 2 is detachably mounted to the material injection hole 10 through the mounting portion 214 and cooperates with the material injection hole 10 to define a circular material injection port. The bracket 21 includes an opening corresponding to the above-mentioned material injection port, the mounting portion 214 includes a flange 2141 extending radially outward from an edge of the opening, and a width of the flange 2141 is not less than a width of the notch 100 of the material injection hole 10 in the same direction. The mounting portion 214 further includes a pair of hanging lugs 2142 disposed oppositely, the hanging lugs 2142 and the flange 2141 define an accommodating space (not shown) coaxial with the opening, and the accommodating space receives the edge of the material injection hole 10 through the rotation of the sealing device 2.

When the sealing device 2 is installed, the inner side of the bottom plate of the box body 1 aligns the hanging lugs 2142 with the notches 100 of the material injection holes 10, so that the hanging lugs 2142 protrude out of the plane where the material injection holes 10 are located, then the sealing device 2 rotates clockwise (or anticlockwise), the accommodating space of the installation part 214 receives the circular edges of the material injection holes 10, namely the hanging lugs 2142 are staggered with the notches 100, and the installation and fixation of the sealing device 2 to the material injection holes 10 are completed.

Preferably, each of the hanging lugs 2142 includes an open end 2142a and a closed end 2142b that are oppositely disposed, i.e., only allow one-way rotation about the center of the injection port, and the rotation angle corresponds to the center angle of the hanging lug 2142 from the open end 2142a to the closed end 2142 b. In this embodiment, the sealing end 2142b is further provided with a locking structure (not shown) to prevent the hanging ring 2142 from rotating in the direction opposite to the mounting direction and separating from the injection hole 10. The clamping structure may be a tight fit between the sealing end 2142b and the circular edge of the material injection hole 10, or may be other anti-loose mechanical mechanisms, which are not listed here.

As shown in fig. 3 and 6, the sealing cover 22 is pivotally connected to a side of the bracket 21 facing the inner container of the refrigerator, and in the present embodiment, the sealing cover 22 is hinged to the bracket 21. The bracket 21 is provided with a hinge base 211, and the hinge base 211 is provided with a pair of bearing holes 2112 for receiving the rotation shaft of the sealing cover 22. The seal cover 22 is provided with a hinge shaft 221, and both ends of the hinge shaft 221 are respectively received in the pair of bearing holes 2112, whereby the seal cover 22 is pivotally connected to the bracket 21. Of course, the positions of the hinge shaft 221 and the bearing hole 2112 may be reversed, that is, the bracket 21 may be provided with the hinge shaft 221, and the sealing cover 22 is provided with the bearing hole 2112 capable of being sleeved on the hinge shaft 221. Furthermore, the hinge is not the only embodiment of the pivotable connection, and a person skilled in the art will be motivated by the hinge to envision many more embodiments that are pivotable and not listed here. Furthermore, the hinge shaft 221 is further provided with a limit block 2211, the hinge seat 211 is provided with a stop block 2111 matched with the limit block 2211, and the rotation of the sealing cover 22 is reasonably limited by the matching of the limit block 2211 and the stop block 2111, so that the situation that the sealing cover cannot be normally closed due to an overlarge rotation angle is avoided.

In this embodiment, the arrangement of the notches 100 of the material filling hole 10 and the limitation of the rotation direction of the hanging lugs 2142 enable the hinge seat 211 to be located at the top or upper portion of the material filling opening after the sealing device 2 is assembled on the bottom plate of the box body 1, i.e. the sealing cover 22 falls down by gravity in a free state to seal the material filling opening. Of course, it is also possible to provide a resilient member at the hinge so that the sealing cap 22 closes the injection opening under the resilient biasing force.

Referring to fig. 3 and 4, the bracket 21 is provided with a protrusion 212 along the circumferential direction of the material injection hole 10, a flange 222 is provided on the periphery of the sealing cover 22, and the flange 222 is fastened on the protrusion 212 in the free state. In this embodiment, the protrusion 212 is disposed along the opening of the injection opening, i.e., the bracket 21, the height of the protrusion 212 increases from the joint of the sealing cover 22 to the opening opposite to the joint, and the protrusion 212 intersects with the mounting plane of the bracket 21 and forms an included angle. The provision of the projection 212 allows the sealing cap 22 to cover the injection port without completely falling down, avoiding the situation that the sealing cap 22 cannot fall down completely flush with the mounting plane of the holder 21 for any reason and cannot effectively seal the injection port. With this arrangement, the sealing cap 22 can make the flange 222 snap on the protrusion 212 when the inclination angle of the sealing cap to the mounting plane is equal to the included angle, thereby completing the sealing of the injection port.

With continued reference to fig. 3 and 4, the bracket 21 is further provided with a shielding portion 213, and the shielding portion 213 extends from the mounting plane of the bracket 21 to one side of the refrigerator inner container. Further, the height value of the shielding portion 213 is largest at the opening of the sealing cover 22. The shielding portion 213 is provided to prevent the foaming material from leaking out of the injection port through a gap at the opening of the sealing cap 22 before the sealing cap 22 is closed.

Above, closing device 2 can be fixed in notes material hole 10 with simple operation by the installation to inject the material mouth with notes material hole 10 and injecing the sprue, and cover the sprue by sealed lid 22 under free state, when the material is annotated to needs, make the sealed lid 22 of annotating the material rifle front end back open, sealed lid 22 reverse pivot certain angle is in order to let out the sprue, when treating to annotate the material rifle and withdrawing from, sealed lid 22 forward rotation under the action of gravity certain angle, until turn-ups 222 lock is on the arch 212 of support 21.

In the embodiment, the sealing device 2 is made of plastic material, and because the non-visible part has no requirement on appearance, the sealing device can be made of PP recycled material during manufacturing, and the material cost is reduced. And the plastic parts are installed on a preassembly production line before foaming, and assembly supply is not needed, so that the phenomenon that the unidirectional sheets fall off in bottom steel supply and transportation is avoided, and the reject ratio is reduced. In addition, the assembly operation is simple, and the labor cost of spot welding is further reduced. Therefore, the sealing device 2 provided by the embodiment solves the problem of poor sealing of the material injection hole 10 at a low cost, and has a significant improvement over the prior art.

In addition, the embodiment further provides a refrigerator (not shown), the refrigerator includes a box body 1, and the box body 1 is provided with a material injection hole 10; the inner container is arranged in the box body 1 and defines a foaming space together with the box body 1; the refrigerator also comprises a sealing device 2 as described above, wherein the sealing device 2 is used for sealing the material injection hole 10.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a closing device for seal refrigerator's notes material hole, its characterized in that: the sealing device comprises a bracket fixed on the material injection hole and a sealing cover which can be relatively pivotally connected to the bracket, wherein the sealing cover is arranged on one side of the bracket facing the refrigerator inner container and falls under the action of gravity to seal the material injection hole in a free state;

the bracket is provided with a bulge along the circumferential direction of the material injection hole, the periphery of the sealing cover is provided with a flanging, and the flanging is buckled on the bulge in the free state;

the height of the protrusion increases progressively from the joint of the sealing cover to the opening opposite to the joint, and the protrusion is intersected with the mounting plane of the bracket to form an included angle;

the support is provided with a shielding part, the shielding part extends from the mounting plane of the support to one side of the refrigerator inner container, and the shielding part is arranged on the outer side of the protrusion and the sealing cover.

2. The closure of claim 1, wherein: the height value of the shielding part is maximum at the opening of the sealing cover.

3. The closure of claim 1, wherein: the support including set up in the installation department of the relative one side of sealed lid, closing device passes through installation department detachably is fixed in annotate the material hole.

4. The closure of claim 3, wherein: the support include with annotate the opening that the material hole corresponds, the installation department include by the flange limit of the radial outside extension in open-ended edge to and the hangers of a pair of relative setting, the hangers with the flange limit go out with the coaxial accommodation space of opening, the accommodation space passes through closing device's rotary motion receives annotate the edge in material hole.

5. The closure of claim 1, wherein: the sealing cover is hinged to the bracket.

6. The closure of claim 1, wherein: the closure is made of a plastic material.

7. A refrigerator comprises a refrigerator body, wherein a material injection hole is formed in the refrigerator body; the inner container is arranged in the box body and defines a foaming space together with the box body; the method is characterized in that: the closure of any of claims 1-6, further comprising a sealing device for sealing the pour hole.