CN114061237B - Vacuum fresh-keeping device and refrigerator - Google Patents

Abstract

The invention discloses a vacuum fresh-keeping device and a refrigerator, and relates to the technical field of household appliances. The invention comprises an evacuation pump, an evacuation pipeline, a clip-type evacuation joint and a fresh-keeping bag. The connector snaps together. The invention adopts an evacuation pump, a clip-type evacuation joint and a fresh-keeping bag, and the clip-type evacuation joint can be quickly connected with the evacuation sub-joint on the fresh-keeping bag, and the air in the fresh-keeping bag is extracted by the operation of the evacuation pump; The storage box is evacuated, and the fresh-keeping bag is used for more thorough evacuation, better sealing, and stronger pressure-holding ability. After the food is put into the fresh-keeping bag and vacuumized, it is then put into the refrigerator, which is more conducive to food preservation.

Description

A vacuum preservation device and refrigerator

technical field

The invention belongs to the technical field of household appliances, and in particular relates to a vacuum preservation device and a refrigerator.

Background technique

With the improvement of living standards, refrigerators have become a tool for millions of households to store food. The temperature of food stored in the freezer compartment of the refrigerator is 2 to 8°C. In this environment, some bacteria will still grow and reproduce, resulting in spoilage of food, which cannot be stored for a long time. Although the low temperature in the freezer can inhibit most bacteria, the freezing process will damage the cellular structure of the food and cause nutrient loss. At the same time, the dry consumption of food under freezing conditions also leads to a serious loss of food taste. Therefore, vacuum preservation technology came into being. Vacuum preservation is mainly to make the air in the sealed space thinner, and the oxygen content is reduced to the minimum required to maintain metabolites. In this way, during the storage of foods with metabolic activities, a series of consumption and changes caused by respiratory metabolism can be minimized. And the growth and reproduction of aerobic microorganisms are also inhibited, thus maintaining the freshness of food. At the same time, during the pumping process, the volatile odor in the food and the accumulation of waste gas caused by anoxic respiration will be discharged from the sealed space along with the air, which also has a positive effect on maintaining the quality of the food. The vacuuming process also facilitates rapid cooling, allowing food to reach storage temperature quickly.

Existing refrigerator vacuum preservation technology is mostly by vacuumizing containers such as drawers and sealed boxes (this type of scheme has been disclosed in the Chinese patent document with publication number CN203011058U), and its ability to lock and maintain pressure has great advantages for structural designers. Great difficulty. At the same time, because the drawer and the sealed box have a fixed shape, the pressure strength that the material can withstand is limited, so the oxygen content in the storage space cannot be almost emptied like a self-locking sealed bag. In addition, using drawers and airtight boxes as storage containers not only restricts the location of food, but also has certain requirements on the shape of food. Larger or irregular foods cannot be smoothly placed in drawers or airtight boxes, which has many limitations.

Contents of the invention

The purpose of the present invention is to provide a vacuum fresh-keeping device. By adopting an evacuation pump, a clip-type evacuation joint and a fresh-keeping bag, the clip-type evacuation joint can be quickly docked with the evacuation sub-joint on the fresh-keeping bag, and the air in the fresh-keeping bag will be pumped out by the operation of the evacuation pump. Put the food into the fresh-keeping bag and vacuumize it, and then put it into the refrigerator, which is more conducive to food preservation. It solves the problem that the existing refrigerator adopts vacuuming of the drawer-type storage box, which has low emptying degree and great difficulty in locking and maintaining pressure. There is a problem with restrictions on food shapes. Another object of the present invention is to provide a refrigerator.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:

The present invention is a vacuum fresh-keeping device, comprising an evacuation pump, an evacuation pipeline, a clip-type evacuation joint and a fresh-keeping bag. An evacuation sub-joint, the clip-type evacuation joint is clamped with the evacuation sub-joint.

As a preferred technical solution of the present invention, the clip-type evacuation joint includes a first clip body and a second clip body, and the first clip body includes a first clamping portion at the front end and a first handle portion at the rear end, so The second clip body includes a second clamping part at the front end and a second handle part at the rear end, the middle part of the first clip body is hinged with the middle part of the second clip body, and the first clip body and the second clip body An elastic member is provided between the first clamping part and the second clamping part, and the inner surface of the first clamping part is provided with an air extraction groove, and the air extraction groove and the air extraction sub-joint are clamped Form a sealed evacuated cavity.

As a preferred technical solution of the present invention, one side of the air extraction groove is provided with an air extraction nozzle, the air extraction nozzle communicates with the air extraction groove, and the inner wall of the evacuation pipe fits with the surrounding side of the air extraction nozzle .

As a preferred technical solution of the present invention, the peripheral side wall of the air pumping groove is clamped with a silicone seal ring to ensure the airtightness of the pumping process, the silicone seal ring is in contact with the pumping sub-joint, and the silicone seal ring abut against the inner surface of the second clamping portion.

As a preferred technical solution of the present invention, the second clamping part has a through hole communicating with the air extraction groove, and the silicone sealing ring is in contact with the inner surface of the second clamping part, that is, when the clamp is in a tightly closed state , to prevent the opening of the evacuation pump and the formation of negative pressure in the evacuation tank, which makes it difficult to open the clip-type evacuation joint.

As a preferred technical solution of the present invention, the evacuation sub-joint is arranged on one side of the fresh-keeping bag and close to the edge of the fresh-keeping bag, so as to facilitate the docking of the clip-type evacuation joint with the evacuation sub-joint with a minimum stroke. The evacuation sub-joint has a one-way valve that can only exhaust air from the fresh-keeping bag, so as to facilitate the extraction of air from the fresh-keeping bag while avoiding air leakage.

A refrigerator, comprising a refrigerating chamber and a door body, and also includes the vacuum fresh-keeping device, the vacuum fresh-keeping device is fixedly installed on the door body, the evacuation pump is electrically connected with a control module, and the control module is connected to the refrigerator The main control board is electrically connected.

As a preferred technical solution of the present invention, an installation box is fixedly connected to the inner surface of the refrigerator door, the evacuation pump is fixedly installed in the installation box, and the clip-type evacuation joint is arranged outside the installation box.

As a preferred technical solution of the present invention, the lower surface of the installation box is provided with an accommodating groove for accommodating the clip-type evacuation joint and the evacuation pipe, the bottom surface of the accommodating groove is made of magnetic metal material, and one side of the clip-type evacuation joint A magnet is fixedly installed so that the clip-type evacuation joint is adsorbed on the bottom surface of the holding tank.

As a preferred technical solution of the present invention, the magnet is fixedly installed on the inner surface of the first clamping part and located in the air suction groove.

The present invention has the following beneficial effects:

1. The present invention adopts an evacuation pump, a clip-type evacuation joint box and a fresh-keeping bag, and the clip-type evacuation joint can be quickly connected with the evacuation sub-joint on the fresh-keeping bag, and the air in the fresh-keeping bag is extracted by the operation of the evacuation pump; The storage box is vacuum-pumped, and the fresh-keeping bag is used for more thorough evacuation, better sealing, and stronger pressure-holding ability. After the food is put into the fresh-keeping bag and vacuumized, it is then put into the refrigerator, which is more conducive to food preservation.

2. The present invention adopts a clip-type evacuation joint. The clip-type evacuation joint includes a first clip body and a second clip body. The first clip body includes a first clamping portion at the front end. The inner surface of the first clamping portion is provided with a suction The air groove, when in use, directly clamp the first clip body and the second clip body on both sides of the fresh-keeping bag, and the air-pumping groove and the evacuation sub-joint are snapped together to form a sealed evacuation cavity, which can quickly complete the vacuuming of the fresh-keeping bag and operate Simple.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the structural representation of a kind of vacuum preservation device of the present invention;

Fig. 2 is the structural schematic diagram of the vacuum fresh-keeping device in looking up;

Fig. 3 is a sectional view of the vacuum preservation device;

Fig. 4 is a schematic structural view of the clip-type evacuation joint of the present invention;

Fig. 5 is a half-sectional schematic diagram of a clip-type evacuation joint;

Figure 6 is an exploded view of the clip-type evacuation joint;

Fig. 7 is a front view of clip-type evacuation joint and fresh-keeping bag clamped;

Fig. 8 is a structural schematic diagram of the installation box fixedly installed on the refrigerator door;

Fig. 9 is a structural schematic diagram of the installation box fixedly installed in the refrigerator;

In the accompanying drawings, the list of parts represented by each label is as follows:

1-evacuation pump, 101-rubber shock absorber, 102-silence pipe,

2- Evacuate the pipe,

3-clamp type evacuation joint, 31-first clamp body, 311-first clamping part, 3111-suction groove, 3112-suction nozzle, 3113-buckle, 312-first hand-held part, 32-second Clip body, 321-second clamping part, 3211-through hole, 322-second handle part, 33-silica gel sealing ring, 34-elastic part, 35-magnet,

4-Fresh bag, 401-Evacuation sub-joint,

5-installation box, 501-accommodating groove,

6- cold room,

7- door body.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In describing the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surrounding" etc. Indicating orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention .

Embodiment one

Please refer to Fig. 1-shown in Fig. 3, the present invention is a kind of vacuum fresh-keeping device, comprises evacuation pump 1, evacuation pipeline 2, clip-type evacuation joint 3 and fresh-keeping bag 4, and evacuation pipeline 2 adopts spring telescopic air tube, and the evacuation pump 1 The air suction port is connected to the clip-type evacuation joint 3 through a spring telescopic air tube, and one side of the fresh-keeping bag 4 is provided with an evacuation sub-joint 401 snapped to the clip-type evacuation joint 3 .

Please refer to FIGS. 4-6 , the clip-type evacuation joint 3 includes a first clip body 31 and a second clip body 32, and the first clip body 31 includes a first clamping portion 311 at the front end and a first handle portion 312 at the rear end. , the second clip body 32 includes a second clamping part 321 at the front end and a second handle part 322 at the rear end, the middle part of the first clip body 31 is hinged with the middle part of the second clip body 32, the first clip body 31 and the second Between the clip body 32 is provided an elastic member 34 that makes the first clamping portion 311 and the second clamping portion 321 contact, the elastic member 34 adopts a torsion spring, and the inner surface of the first clamping portion 311 is provided with an air extraction groove 3111 After the air pumping groove 3111 is engaged with the pumping sub-joint 401, a sealed pumping cavity for pumping air is formed. One side of the air extraction groove 3111 is provided with an air extraction nozzle 3112, the air extraction nozzle 3112 communicates with the air extraction groove 3111, the inner wall of the spring telescopic tube fits with the peripheral side of the air extraction nozzle (3112), and the peripheral side of the air extraction nozzle 3112 It is provided with a corrugation to prevent the spring telescopic tube from falling off.

Please refer to Figure 7, the evacuation sub-joint 401 is arranged on one side of the fresh-keeping bag 4 and close to the edge of the fresh-keeping bag 4, if the evacuation sub-joint 401 is arranged on the side of the fresh-keeping bag 4 near the inner side, it is necessary to increase the first handle. The lengths of the 312 and the second handle 322 are equivalent to increasing the volume of the clip-type evacuation joint 3 , which increases material costs and space occupancy. The evacuation sub-joint 401 is arranged on the edge to facilitate the docking of the clip-type evacuation joint 3 with the evacuation sub-joint 401 with a minimum stroke. A one-way valve that can only be exhausted from the fresh-keeping bag 4 is installed in the evacuation sub-joint 401 .

A specific application of this embodiment is: put food in the fresh-keeping bag 4, hold the hand-held part of the clip-type evacuation joint 3 with one hand, and hold the evacuation sub-joint 401 of the fresh-keeping bag 4 with the other hand, and pinch the hand-held part tightly so that the first The first clamping part 311 and the second clamping part 321 are opened. Place the fresh-keeping bag 4 between the first clamping part 311 and the second clamping part 321, align the evacuation sub-joint 401 with the suction groove 3111, release the handle, and the evacuation sub-joint 401 follows the second clamping part 321 moves toward the first clamping portion 311 so as to abut against the inner wall of the air suction groove 3111 . Start the evacuation pump 1, and the evacuation pump runs for 1 revolution to extract the air in the fresh-keeping bag 4.

Embodiment two

On the basis of Embodiment 1, please refer to Fig. 5 and Fig. 6, the peripheral side wall of the air extraction groove 3111 is clamped with a silicone sealing ring 33 to ensure the airtightness of the air extraction process, and the silicone sealing ring 33 is connected to the evacuation sub-joint 401 Abut. During the evacuation process, the silicone sealing ring 33 effectively prevents air leakage at the joint between the evacuation groove 3111 and the evacuation sub-joint 401, thereby improving the evacuation rate. In addition, the silicone sealing ring 33 is clamped on the peripheral side wall of the air extraction groove 3111, and when the silicone sealing ring 33 is aged or damaged, it is convenient to replace.

The silicone sealing ring 33 abuts against the inner surface of the second clamping portion 321 , and the second clamping portion 321 defines a through hole 3211 communicating with the air suction groove 3111 . When the clip is in a tightly closed state, the silicone sealing ring 33 will form a better sealing effect with the inner surface of the second clamping portion 321 . Opening the through hole 3211 can effectively avoid the negative pressure formed in the suction groove 3111 when the pump 1 is turned on, which makes it difficult to open the clip-type pumping joint 3 .

Embodiment Three

Based on Embodiment 1, as shown in FIG. 8, the present invention also discloses a refrigerator, including a refrigerating chamber 6 and a door body 7, and a vacuum preservation device, which is fixedly installed on the door body 7 of the refrigerator. The evacuation pump 1 is electrically connected to a control module, and the control module is electrically connected to the main control board of the refrigerator. An installation box 5 is fixedly connected to the inner surface of the refrigerator door body 7 , and the evacuation pump 1 is fixedly installed in the installation box 5 . The evacuation pump 1 is covered with a rubber shock absorber 101 at the contact part of the installation box 5, and the evacuation pump 4 is connected with a silencer pipe 102 at the exhaust port. vibration and noise. The clip-type evacuation joint 3 is located outside the installation box 5. When a vacuum preservation device is required, open the refrigerator door 7, connect the clip-type evacuation joint 3 with the evacuation sub-joint 401 on the fresh-keeping bag 4, and control it through the main control board of the refrigerator. The evacuation pump 1 operates to extract the air in the fresh-keeping bag 4, and then puts the fresh-keeping bag 4 with food into the refrigerator to keep food fresh.

Embodiment Four

Based on the third embodiment, please refer to Fig. 2-Fig. 6, the lower surface of the installation box 5 is provided with an accommodating groove 501 for accommodating the clip-type evacuating joint 3 and the evacuating pipe 2, and the bottom surface of the accommodating groove 501 is made of iron material. The bottom surface of the suction groove 3111 of the clip-type evacuation joint 3 is fixedly connected with three buckles 3113, and a magnet 35 is buckled in the buckles 3113. The clip-type evacuation joint 3 can be adsorbed in the holding tank 501, which is convenient to take and use, and at the same time optimizes the spatial layout of the vacuum fresh-keeping device.

Embodiment five

As shown in Figure 9, the installation box 5 is fixedly installed on the side wall of the refrigerator compartment 6. On the one hand, it prevents the vacuum preservation device from being fixed on the door body 7, which increases the load bearing of the door body 7, causes the door body 7 to deform, and damages the seal of the refrigerator. sex. On the other hand, avoid being installed on the door body 7, the pump body of the evacuation pump 1 shakes with the opening and closing process of the door body 7, causing damage to the evacuation pump 7.

In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments are not exhaustive in all detail, nor are the inventions limited to specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (6)

1. A vacuum fresh-keeping device, characterized in that it comprises: an evacuation pump (1), an evacuation pipeline (2), a clip-type evacuation joint (3) and a fresh-keeping bag (4), and the air extraction port of the evacuation pump (1) Connect with the clip-type evacuation joint (3) through the evacuation pipe (2), one side of the fresh-keeping bag (4) is provided with an evacuation sub-joint (401), and the clip-type evacuation joint (3) is connected with the evacuation sub-joint (401 )Card access; The clip-type evacuation joint (3) includes a first clip body (31) and a second clip body (32), and the first clip body (31) includes a first clamping portion (311) at the front end and a second clip portion (311) at the rear end. A handle part (312), the second clip body (32) includes a second clamping part (321) at the front end and a second handle part (322) at the rear end, the middle part of the first clip body (31) Hinged with the middle part of the second clip body (32), the first clip body (31) and the second clip body (32) are provided with the first clamping part (311) and the second clamping part (321) ) against the elastic member (34), the inner surface of the first clamping part (311) is provided with an air extraction groove (3111), and the air extraction groove (3111) is engaged with the air extraction sub-joint (401) Form a sealed evacuation cavity; One side of the air extraction groove (3111) is provided with an air extraction nozzle (3112), the air extraction nozzle (3112) communicates with the air extraction groove (3111), and the inner wall of the evacuation pipe (2) is connected to the air extraction nozzle (3112)'s peripheral side fitting; The peripheral side wall of the air pumping groove (3111) is clamped with a silicone sealing ring (33) to ensure the airtightness of the air pumping process, and the silicone sealing ring (33) is in contact with the pumping sub-joint (401). The sealing ring (33) abuts against the inner surface of the second clamping portion (321); The second clamping portion (321) is provided with a through hole (3211) communicating with the air suction groove (3111). 2. A vacuum preservation device according to claim 1, characterized in that the evacuation sub-joint (401) is arranged on one side of the fresh-keeping bag (4) and is close to the edge of the fresh-keeping bag (4), and the evacuation sub-joint (401) has a one-way valve that can only exhaust air from the fresh-keeping bag (4). 3. A refrigerator, comprising a cold room (6) and a door body (7), characterized in that it also comprises a vacuum preservation device according to any one of claims 1-2, said vacuum preservation device is fixedly installed in the refrigerator , the evacuation pump (1) is electrically connected with a control module, and the control module is electrically connected with the main control board of the refrigerator. 4. A refrigerator according to claim 3, characterized in that an installation box (5) is fixedly connected to the inner surface of the refrigerator door (7), and the evacuation pump (1) is fixedly installed on the installation box ( 5), the clip-type evacuation joint (3) is arranged outside the installation box (5), and the clip-type evacuation joint (3) has an adsorption component that can be adsorbed on the inner wall of the refrigerator or the installation box (5). 5. A refrigerator according to claim 4, characterized in that, the lower surface of the installation box (5) is provided with an accommodating groove (501) for accommodating the clip-type evacuation joint (3) and the evacuation pipe (2), so that The bottom surface of the storage tank (501) is made of magnetic metal material, and the clip-type evacuation joint (3) is adsorbed on the bottom surface of the storage tank (501). 6. A refrigerator according to claim 5, characterized in that, the adsorption assembly adopts a magnet (35), and the bottom surface of the air suction groove (3111) is fixedly connected with several buckles (3113), and the magnet (35) engage with the bottom surface of the air extraction groove (3111).

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