阅读说明：本技术 一种用于降低小型冷柜箱内负压的柜口结构 (Cabinet opening structure for reducing negative pressure in small-sized refrigerator ) 是由 孙祥 薛亮 邹海艳 徐光建 于 2020-05-28 设计创作，主要内容包括：本发明公开了一种用于降低小型冷柜箱内负压的柜口结构,包括柜口本体,柜口本体为方形平面的框体结构,柜口本体的外边缘上方具有向上凸起的外边沿。柜口本体前部上表面的左右两侧,对称设置有两组凸棱。每组凸棱包括相对于柜口本体上表面向上凸起的多个凸棱,同组的多个凸棱均纵向延伸且横向等间隔依次排布。本发明结构设计合理,通过在柜口本体上设置凸棱,使柜口结构和箱盖的密封条之间形成进风间隙,降低箱内的负压,便于开启箱盖,省时省力,操作便捷。(The invention discloses a cabinet opening structure for reducing negative pressure in a small-sized refrigerator box, which comprises a cabinet opening body, wherein the cabinet opening body is of a square plane frame structure, and an upward convex outer edge is arranged above the outer edge of the cabinet opening body. Two groups of convex edges are symmetrically arranged on the left side and the right side of the upper surface of the front part of the cabinet opening body. Each group of ribs comprises a plurality of ribs which are upward raised relative to the upper surface of the cabinet opening body, and the plurality of ribs in the same group are longitudinally extended and are horizontally arranged at equal intervals in sequence. The cabinet opening structure is reasonable in structural design, the convex edge is arranged on the cabinet opening body, so that an air inlet gap is formed between the cabinet opening structure and the sealing strip of the cabinet cover, the negative pressure in the cabinet is reduced, the cabinet cover is convenient to open, the time and the labor are saved, and the operation is convenient.)

1. A cabinet opening structure for reducing negative pressure in a small-sized refrigerator comprises a cabinet opening body and is characterized in that the cabinet opening body is a frame structure with a square plane, and an upward convex outer edge is arranged above the outer edge of the cabinet opening body;

two groups of convex edges are symmetrically arranged on the left side and the right side of the upper surface of the front part of the cabinet opening body;

each group of ribs comprises a plurality of ribs which are upward raised relative to the upper surface of the cabinet opening body, and the plurality of ribs in the same group are longitudinally extended and are horizontally arranged at equal intervals in sequence.

2. The cabinet opening structure for reducing the negative pressure in the small-sized refrigerator cabinet according to claim 1, wherein the inner side of the cabinet opening body is provided with a sunken step, and the sunken step is also a square planar frame structure;

the outer side of the sunken step and the inner edge of the cabinet opening body are of an integral structure, and the inner side of the sunken step is downwards folded to form an inner folded edge of a square annular structure.

3. The cabinet opening structure for reducing the negative pressure in the small-sized refrigerator according to claim 2, wherein the cabinet opening body is connected with the sunken step through a connecting body with a square opening, the upper end of the connecting body is fixedly connected with the inner edge of the cabinet opening body to form an integral structure, and the lower end of the connecting body is fixedly connected with the outer edge of the sunken step to form an integral structure.

4. The opening structure of claim 2, wherein the front frame and the rear frame of the sinking step have two sets of positioning blocks inside, the two sets of positioning blocks on the same frame are arranged symmetrically left and right, each set of positioning blocks comprises a plurality of positioning blocks, and each positioning block is integrally formed with the upper surface of the sinking step.

5. The cabinet opening structure for reducing the negative pressure in the small-sized refrigerator according to claim 1, wherein an outer rib frame is arranged at the bottom of the cabinet opening body, the outer rib frame is a square frame matched with the cabinet opening body, and a group of first limiting blocks are respectively arranged on the inner sides of four sides of the outer rib frame;

each first stopper of group includes two at least first stoppers, forms the first draw-in groove with freezer shell upper end matched with between each first stopper of the same group and the corresponding limit of outer muscle frame.

6. The cabinet opening structure for reducing the negative pressure in the small-sized refrigerator according to claim 2, wherein an inner rib frame is arranged at the bottom of the sunken step, the inner rib frame is a square frame matched with the sunken step, and a group of second limiting blocks are respectively arranged on the inner sides of four sides of the inner rib frame;

each group of second limiting blocks comprises a plurality of second limiting blocks, each second limiting block in the same group is sequentially arranged at equal intervals along the extending direction of the corresponding edge of the inner rib frame, and a second clamping groove matched with the upper end of the refrigerator liner is formed between each second limiting block in the same group and the inner folding edge.

7. The cabinet opening structure for reducing the negative pressure in the small-sized refrigerator according to claim 6, wherein the upper end of the top of each second limiting block and the bottom of the sunken step are of an integral structure, the outer side of each second limiting block and the corresponding edge of the inner rib frame are integrally formed, and the inner rib frame and the sunken step are of an integral structure.

8. The opening structure for reducing negative pressure in small-sized refrigerator according to claim 1, wherein said rib is a long bar structure with a semicircular cross section, and the bottom of said rib is integrally formed with the upper surface of the opening body;

one end of the convex edge starts from the inner side wall of the outer edge, and the other end of the convex edge is stopped at the inner edge of the cabinet opening body;

the height of the convex rib relative to the upper surface of the cabinet opening body is smaller than that of the outer edge relative to the upper surface of the cabinet opening body.

Technical Field

The invention relates to the technical field of household appliances, in particular to a cabinet opening structure for reducing negative pressure in a small-sized refrigerator.

Background

At present, the opening of a refrigerator in the market is basically of a plane structure, the plane structure locks gas in the refrigerator when the refrigerator cover is closed, the volume of the gas in the refrigerator is reduced after the refrigerator is cooled, so that the pressure intensity in the refrigerator is smaller than the outside of the refrigerator cover, the temperature in the refrigerator can be well kept due to the sealing performance of a door seal of the refrigerator, the refrigerator is in a negative pressure state for a long time, the refrigerator cover is very hard to open, and the refrigerator cover is difficult to open easily. Therefore, it is highly desirable to improve the structure of the conventional refrigerator opening to equalize the pressure state inside and outside the refrigerator while hardly reducing the sealability, so that the opening of the refrigerator lid is easy.

Disclosure of Invention

In view of the defects in the prior art, the invention aims to provide a cabinet opening structure for reducing negative pressure in a small refrigerator, and solves the problem that the refrigerator is in a negative pressure state for a long time and the cover is difficult to open.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a cabinet mouthful structure for reducing small-size freezer incasement negative pressure, includes the cabinet mouthful body, and the cabinet mouthful body is square planar frame structure, and the outward flange top of cabinet mouthful body has the bellied outer fringe that makes progress.

Two groups of convex edges are symmetrically arranged on the left side and the right side of the upper surface of the front part of the cabinet opening body.

Each group of ribs comprises a plurality of ribs which are upward raised relative to the upper surface of the cabinet opening body, and the plurality of ribs in the same group are longitudinally extended and are horizontally arranged at equal intervals in sequence.

Preferably, the inner side of the cabinet opening body is provided with a sunken step, and the sunken step is also a square planar frame structure.

The outer side of the sunken step and the inner edge of the cabinet opening body are of an integral structure, and the inner side of the sunken step is downwards folded to form an inner folded edge of a square annular structure.

Preferably, the cabinet opening body is connected with the sunken step through a connector with a square opening, the upper end of the connector is fixedly connected with the inner edge of the cabinet opening body to form an integral structure, and the lower end of the connector is fixedly connected with the outer edge of the sunken step to form an integral structure.

Preferably, two sets of positioning blocks are arranged on the inner sides of the front frame and the rear frame of the sunken step respectively, the two sets of positioning blocks on the same frame are arranged in a bilateral symmetry manner, each set of positioning block comprises a plurality of positioning blocks, and each positioning block and the upper surface of the sunken step are integrally formed.

Preferably, the bottom of the cabinet opening body is provided with an outer rib frame, the outer rib frame is a square frame matched with the cabinet opening body, and the inner sides of the four sides of the outer rib frame are respectively provided with a group of first limiting blocks.

Each first stopper of group includes two at least first stoppers, forms the first draw-in groove with freezer shell upper end matched with between each first stopper of the same group and the corresponding limit of outer muscle frame.

Preferably, an inner rib frame is arranged at the bottom of the sunken step, the inner rib frame is a square frame matched with the sunken step, and a group of second limiting blocks are respectively arranged on the inner sides of four edges of the inner rib frame.

Each group of second limiting blocks comprises a plurality of second limiting blocks, each second limiting block in the same group is sequentially arranged at equal intervals along the extending direction of the corresponding edge of the inner rib frame, and a second clamping groove matched with the upper end of the refrigerator liner is formed between each second limiting block in the same group and the inner folding edge.

Preferably, the upper end of the top of each second limiting block and the bottom of the sunken step are of an integral structure, the outer side of each second limiting block and the corresponding edge of the inner rib frame are integrally formed, and the inner rib frame and the sunken step are of an integral structure.

Preferably, the rib is a long strip structure with a semicircular cross section, and the bottom of the rib and the upper surface of the cabinet opening body are integrally formed.

One end of the convex edge starts from the inner side wall of the outer edge, and the other end of the convex edge is stopped at the inner edge of the cabinet opening body.

The height of the convex rib relative to the upper surface of the cabinet opening body is smaller than that of the outer edge relative to the upper surface of the cabinet opening body.

By adopting the technical scheme, the invention has the beneficial technical effects that: the cabinet opening structure is reasonable in structural design, the convex edge is arranged on the cabinet opening body, so that an air inlet gap is formed between the cabinet opening structure and the sealing strip of the cabinet cover, the negative pressure in the cabinet is reduced, the cabinet cover is convenient to open, the time and the labor are saved, and the operation is convenient.

Drawings

Fig. 1 is a schematic view of a structure of a cabinet opening for reducing negative pressure in a small-sized refrigerator case according to the present invention.

Fig. 2 is a schematic top view of a cabinet opening structure for reducing negative pressure in a small-sized refrigerator according to the present invention.

Fig. 3 is a schematic bottom view of a cabinet opening structure for reducing negative pressure in a small-sized refrigerator according to the present invention.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings:

with reference to fig. 1 to 3, a cabinet opening structure for reducing negative pressure in a small-sized refrigerator box comprises a cabinet opening body 1, wherein the cabinet opening body 1 is a frame structure with a square plane, an upward convex outer edge 11 is arranged above the outer edge of the cabinet opening body 1, the outer edge 11 is a square frame consistent with the outer edge of the cabinet opening body 1, and the bottom of the outer edge 11 and the upper surface of the cabinet opening body 1 are integrally formed. The inboard of cabinet mouth body 1 has formula of sinking step 2, and formula of sinking step 2 also is square planar frame structure, and the upper surface of formula of sinking step 2 is less than the upper surface of cabinet mouth body 1.

The outer side of the sunken step 2 and the inner edge of the cabinet opening body 1 are of an integral structure, and the inner side of the sunken step is downwards folded to form an inner folded edge 24 of a square annular structure. Specifically, link to each other through connector 3 that has square mouth between cabinet mouth body 1 and the formula step 2 that sinks, the structure as an organic whole is connected into with the inward flange fixed connection of cabinet mouth body 1 to the upper end of connector 3, and the lower extreme of connector 3 and the outward flange fixed connection of formula step 2 that sinks form structure as an organic whole.

Two sets of positioning blocks are arranged on the inner sides of the front frame 21 and the rear frame 22 of the sunken step 2, the two sets of positioning blocks on the same frame are arranged in a bilateral symmetry manner, each set of positioning blocks comprises a plurality of positioning blocks 23, and each positioning block 23 is integrally formed with the upper surface of the sunken step 2.

Cabinet mouth structure fixed mounting is in the box upper end of freezer, and the top of box is provided with the case lid, one side of case lid is passed through the hinge and is rotated with the corresponding side of box upper end and link to each other, and the bottom border position of case lid is equipped with square closed structure's sealing strip, the sealing strip is corresponding with cabinet mouth body 1, and when the case lid was closed, the sealing strip laminated with the surface of cabinet mouth body 1, the realization was to the inside closure of box. In addition, the bottom of the box cover is a square lower convex area corresponding to the sunken step 2, positioning grooves which are equal in number and correspond to the positioning blocks 23 in position one to one are formed in the lower convex area, and after the box cover is closed, the positioning blocks 23 are respectively clamped into the positioning grooves corresponding to the bottom of the box cover.

Two groups of convex edges are symmetrically arranged on the left side and the right side of the upper surface of the front part of the cabinet opening body 1. Each group of ribs comprises three ribs 4 which are upwards raised relative to the upper surface of the cabinet opening body 1, and the three ribs 4 in the same group are longitudinally extended and are horizontally arranged at equal intervals in sequence. One end of the convex edge starts from the inner side wall of the outer edge 11, and the other end of the convex edge is stopped at the inner edge of the cabinet opening body 1. The rib 4 is a long strip-shaped structure with a semicircular cross section, the bottom of the rib is integrally formed with the upper surface of the cabinet opening body 1, and the height of the rib 4 relative to the upper surface of the cabinet opening body 1 is smaller than that of the outer edge 11 relative to the upper surface of the cabinet opening body 1.

After the case lid was closed, the sealing strip of case lid bottom and the cooperation of the upper surface contact of bead 4 and counter mouth body 1, bead 4 makes it take place to warp to the sealing strip effect, and the position that sealing strip and counter mouth body 1's upper surface are located bead 4 both sides forms small clearance, outside air accessible the clearance gets into the inside of freezer, reduces the negative pressure of incasement, can easily open the case lid, labour saving and time saving.

The bottom of the cabinet opening body 1 is provided with an outer rib frame 5, the outer rib frame 5 is a square frame matched with the cabinet opening body 1, and the inner sides of four sides of the outer rib frame 5 are respectively fixed with a group of first limiting blocks 51. Each group of first limiting blocks 51 comprises at least two first limiting blocks 51, and a first clamping groove matched with the upper end of the freezer shell is formed between each first limiting block 51 in the same group and the corresponding edge of the outer rib frame 5. When the cabinet opening structure is installed, the upper end of the refrigerator shell enters the first clamping groove, so that the cabinet opening body 1 and the refrigerator shell are positioned, and the assembling efficiency is improved.

The bottom of the sunken step 2 is provided with an inner rib frame 6, the inner rib frame 6 is a square frame matched with the sunken step 2, and the inner sides of four sides of the inner rib frame 6 are respectively provided with a group of second limiting blocks 61. Each group of second limiting blocks 61 comprises a plurality of second limiting blocks 61, the second limiting blocks 61 in the same group are sequentially arranged at equal intervals along the extending direction of the corresponding edge of the inner rib frame 6, and second clamping grooves matched with the upper end of the refrigerator liner are formed between the second limiting blocks 61 in the same group and the inner folding edge 24.

The upper end of the top of each second limiting block 61 and the bottom of the sunken step 2 are of an integral structure, the outer side of the integral structure is integrally formed with the corresponding edge of the inner rib frame 6, and the inner rib frame 6 and the sunken step 2 are of an integral structure. When the cabinet opening structure is installed, the upper end of the refrigerator inner container enters the second clamping groove, so that the cabinet opening body 1 and the refrigerator inner container are positioned, and the assembling efficiency is improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.