CN109780794B - Refrigerator - Google Patents

Abstract

The invention relates to the field of refrigeration equipment, in particular to a refrigerator. The refrigerator is provided with a refrigerator body and a door body for sealing the refrigerator body, the refrigerator comprises a door seal fixed on the front side of the outer edge of the refrigerator body, and when the door body is closed, the door seal is sealed between the door body and the refrigerator body; the refrigerator is characterized in that the door seal is hollow, the refrigerator body also comprises an air pipe embedded in the door seal, the air pipe can be inflated or exhausted to drive the door seal to expand or contract, the air pipe comprises an outlet, the adjustment of the sealing degree between the door body and the refrigerator body is realized by controlling the exhaust and inflation of the air pipe, and when the door body is closed, the air pipe is inflated to seal the refrigerator with the door seal, so that the door body and the refrigerator body are tightly attached, the cold loss is reduced, and the energy consumption is reduced; when the door body is pulled, the air pipe exhausts air to eliminate the friction force between the door seal and the box body, so that a user can open the door body easily, the structure is simple, and the use feeling is improved.

Description

refrigerator

technical field

The invention relates to the field of refrigeration equipment, in particular to a refrigerator.

Background technique

In existing refrigerators, in order to prevent the cold air in the box from exchanging heat with the hot air outside, a door seal is usually provided between the door and the box; in order to improve the effect of the door seal on heat exchange, when the door is closed , the door body and the box body need to be tightly adsorbed together.

It is understandable that in the actual use process, when the refrigerator is closed, the door and the cabinet need to be tightly sealed to reduce the loss of cooling capacity; when the door is opened, the adsorption force between the door and the cabinet will become a hindrance Especially for people with little strength, when opening a large refrigerator, the use feeling is poor and laborious, and even the reaction force caused by forcefully opening the door causes unnecessary personal safety hazards.

Therefore, providing a refrigerator capable of adjusting the degree of sealing between the door body and the box body has become a problem to be solved urgently.

Contents of the invention

In order to solve the above technical problems, the present invention proposes a refrigerator.

In order to achieve the above object, the technical solution provided by the present invention is as follows: a refrigerator, the refrigerator is provided with a box body and a door body for sealing the box body, and the refrigerator includes a door body fixed on the outer edge of the box body When the door is closed, the door seal is sealed between the door and the box; the door seal is hollow inside, and the box also includes a An air pipe, the air pipe can be inflated or exhausted to drive the door seal to expand or contract, the air pipe includes an outlet, and the refrigerator is provided with a driving device for driving the air pipe to inflate or exhaust;

The door body includes a protruding part disposed toward one side of the box body. When the door body is closed, the driving device drives the air pipe to inflate to make the door seal seal the refrigerator; when the door body is pulled , the driving device drives the air pipe to exhaust to eliminate the friction between the door seal and the door body.

As a further improvement of the present invention, the driving device includes an air cylinder arranged in the box, the surface of the air cylinder is folded so that the air cylinder can be compressed or stretched, and the air cylinder is opened to communicate with the outlet. When the air cylinder is stretched, the air tube is deflated; when the air cylinder is compressed, the air tube is inflated.

As a further improvement of the present invention, the driving device further includes a telescopic structure connected to the air cylinder, the telescopic structure includes a telescopic piece, and the telescopic piece is connected to the side of the air cylinder away from the air vent, the The telescoping member has an extended state and a contracted state. When the telescopic member is in the contracted state, the air cylinder is stretched; when the telescopic member is in the extended state, the air cylinder is compressed.

As a further improvement of the present invention, the telescopic structure further includes an electric control for controlling the extension or contraction of the telescopic element. When the electric control is powered on, the telescopic element is in a retracted state; When powered on, the telescopic member is in the extended state.

As a further improvement of the present invention, the box is provided with a switch electrically connected to the electric control, the switch includes a push-type switch arranged on the side of the box close to the door, and the door A first push rod corresponding to the push switch is provided on one side close to the box;

When the first push lever presses the push switch, the electric control is powered off; when the push switch is separated from the first push lever, the electric control is powered on.

As a further improvement of the present invention, the door body is also provided with a first return spring connected to the first pressing rod, and a first handle portion is provided on the side of the first pressing rod away from the box body;

When the first handle is pulled in a direction away from the box, the first return spring is compressed and the push switch is separated from the first push rod;

When the first handle portion is released and the door body is closed, the first return spring returns to make the first pressing rod press the push switch.

As a further improvement of the present invention, the box body is provided with a first rope connected to the telescopic member, and the other end of the first rope is fixedly connected to the side of the air cylinder away from the air vent; the telescopic member It includes a clamping part extending from the telescopic part toward the door body, and the telescopic structure also includes a clamping structure covering the outside of the telescopic part to cooperate with the clamping part, and the clamping position The structure is provided with a first card position and a second card position, and the distance between the first card position and the first rope is greater than the distance between the second card position and the first rope;

The drive device also includes a sliding structure connected to the telescopic member, the sliding structure includes a sliding block, and the box body is also provided with a second rope whose end is connected to the sliding block, and the second rope is another One end is fixedly connected to a side of the telescopic member away from the first rope;

When the clamping portion is clamped to the second clamping position, the telescopic member is in an extended state;

When the sliding block slides toward the door body so that the engaging portion engages with the first engaging position, the telescopic member is in a retracted state.

As a further improvement of the present invention, the drive device further includes a second pressing rod arranged on the door body and corresponding to the first locking position, and a side of the second pressing rod far away from the box body is provided with a For the second handle part, when the door body is in the closed state, if the second handle part is pulled in a direction away from the box body, the second pressing rod will be separated from the first locking position; If the second handle portion is not pulled, the second pressing rod is engaged with the first locking position.

As a further improvement of the present invention, the sliding structure further includes a first sliding groove and a second sliding groove arranged horizontally and parallel to each other, the first sliding groove is located above the second sliding groove, and the sliding block is provided with several Protruding post, wherein a part of the protruding post extends into the first sliding groove, and the other part extends into the second sliding groove;

The length of the first sliding groove is greater than or equal to the distance between the first locking position and the second locking position;

The side of the second pressing rod close to the sliding block is provided with an oblique protrusion inclined toward the door body, when the second pressing rod moves away from the box, the sliding block is moved by the oblique The protruding piece is driven to slide towards the door body.

As a further improvement of the present invention, the door body is also provided with a second return spring connected to the second pressing rod. When the second handle part is pulled in the direction away from the box body, the second The return spring is compressed and the second pressing rod is separated from the first locking position;

When the second handle part is released and the door body is closed, the second return spring returns to make the second pressing lever engage with the first locking position.

The beneficial effects of the present invention are: the present invention proposes a refrigerator, by embedding an air pipe in the door seal fixed on the front side of the outer edge of the box body, and by controlling the exhaust of the air pipe, the door seal and the door body can be eliminated. The friction force between the doors can be easily opened, the operation is simple, and the user's sense of use is improved; the door seal seals the refrigerator by controlling the inflation of the trachea, so that the door and the cabinet can be tightly fitted, thereby reducing the loss of cooling capacity ,Reduce energy consumption.

Description of drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:

Fig. 1 is a side view of the refrigerator door in the present invention when it is closed and not pulled;

Fig. 2 is a side view of the refrigerator door in the present invention when it is closed and pulled;

Fig. 3 is a side view of the open state of the door of the refrigerator in the present invention;

Fig. 4 is a schematic structural view of the driving device in the state shown in Fig. 1 in an embodiment of the present invention;

Fig. 5 is a schematic structural view of the driving device in the state shown in Fig. 2 in an embodiment of the present invention;

FIG. 6 is a schematic structural view of the drive device in the state shown in FIG. 3 in an embodiment of the present invention;

FIG. 7 is a schematic structural view of the driving device in the state shown in FIG. 1 in another embodiment of the present invention;

Fig. 8 is a schematic structural view of the driving device in the state shown in Fig. 2 in another embodiment of the present invention;

Fig. 9 is a schematic structural view of the driving device in the state shown in Fig. 3 in another embodiment of the present invention;

Fig. 10 is a schematic structural diagram of a state where the second pressing rod is separated from the first locking position in another embodiment of the present invention;

Fig. 11 is a schematic structural view of the second pressing lever clamped to the first locking position in another embodiment of the present invention;

Fig. 12 is a schematic diagram of an enlarged structure at A in Fig. 7;

Fig. 13 is a schematic diagram of an enlarged structure at B in Fig. 8;

Fig. 14 is a schematic diagram of an enlarged structure at C in Fig. 9;

15A-15C are schematic diagrams of the first structure of the sliding block in another embodiment of the present invention;

16A-16C are schematic diagrams of the second structure of the sliding block in another embodiment of the present invention;

Among them, 100—refrigerator, 1—casing body, 10—door seal, 20—air pipe, 21—exit, 2—door body, 30—protrusion, 3—driving device, 40— Inflator, 41—air vent, 50—telescopic structure, 51—telescopic piece, 511—clip joint, 52—electric control, 53—slot structure, 531—first snap position, 532— —Second card position, 60—Press switch, 61—Contact piece, 62—Contact end, 70—First pressing rod, 71—First handle, 80—Sliding structure, 81—Sliding Block, 811—main body, 812—blocking block, 8121—first limit surface, 8122—first guide surface, 813—opening, 814—rotating shaft, 815—protruding post, 816—the first Four return springs, 82—the first sliding groove, 83—the second sliding groove, 84—the third sliding groove, 90—the first rope, 110—the second rope, 120—the second pressing rod, 121—the second handle part, 122—the oblique protrusion, 130—the first return spring, 140—the second return spring, 150—the third return spring, 160—accommodating cavity, 170—the fourth return spring.

detailed description

In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

In order to facilitate the description of the mutual positional relationship of different components, in the embodiment of the present invention, when the refrigerator is in normal use, the direction away from the ground is upward, and the direction toward the ground is downward; when the user faces the door, The direction of the refrigerator facing the user is forward, and the direction away from the user is backward; correspondingly, the left and right directions are defined.

As shown in Figures 1 to 16C, the present invention proposes a refrigerator 100, the refrigerator 100 is provided with a box body 1 and a door body 2 for sealing the box body 1, here, there are various types of the door body 2, For example: one side of the door body 2 can be connected to the box body 1 through a hinge, that is, the door body 2 can rotate along the hinge, so that the action of opening and closing the door can be realized; the door body 2 can be the door body 2 of a refrigerator 100 drawer, Thereby realize the work of opening and closing the door by pushing and pulling the door body 2;

The refrigerator 100 includes a door seal 10 fixed on the front side of the outer edge of the box body 1. When the door body 2 is closed, the door seal 10 is sealed between the door body 2 and the box body 1. The interior of the door seal 10 is hollow, and the box body 1 also includes an air pipe 20 embedded in the interior of the door seal 10. The air pipe 20 can be inflated or exhausted to drive the expansion or contraction of the door seal 10, so The air pipe 20 includes an outlet 21, and the refrigerator 100 is provided with a driving device 3 for driving the air pipe 20 to inflate or exhaust;

The door body 2 includes a protruding portion 30 disposed toward one side of the box body 1, and when the door body 2 is closed, the driving device 3 drives the air pipe 20 to inflate so that the door seal 10 seals the refrigerator 100 , so that the door body 2 is closely attached to the box body 1, thereby reducing cooling loss and energy consumption;

When the door body 2 is pulled, the driving device 3 drives the air pipe 20 to exhaust the air to eliminate the friction between the door seal 10 and the door body 2, so that the user can easily open the door body 2, The structure is simple and the sense of use is improved.

Specifically, the driving device 3 includes an air cylinder 40 arranged in the box body 1. The surface of the air cylinder 40 is folded so that the air cylinder 40 can be compressed or stretched. The vent 41 of the outlet 21, when the air cylinder 40 is stretched, the air tube 20 is exhausted; when the air cylinder 40 is compressed, the air tube 20 is inflated.

In a specific embodiment of the present invention, as shown in FIG. 4 to FIG. 16C , the driving device 3 further includes a telescopic structure 50 connected to the air cylinder 40, and the telescopic structure 50 includes a telescopic member 51, and the telescopic member 51 Connected to the side of the air cylinder 40 away from the vent 41, the telescopic member 51 has an extended state and a contracted state. When the telescopic member 51 is in the contracted state, the air cylinder 40 is stretched; When the telescopic member 51 is in the extended state, the air cylinder 40 is compressed.

In one embodiment of the present invention, as shown in Figures 4 to 6, the telescopic structure 50 further includes an electric control 52 for controlling the extension or contraction of the telescopic member 51, when the electric control 52 is powered on, The telescopic member 51 is in a retracted state; when the electric control 52 is powered off, the telescopic member 51 is in an extended state.

Specifically, the box 1 is provided with a switch electrically connected to the electric control 52, and the switch includes a push-type switch 60 arranged on the side of the box 1 close to the door 2, and the door The side of the body 2 close to the box body 1 is provided with a first push rod 70 corresponding to the push switch 60;

When the first push lever 70 presses the push switch 60, the electric control 52 is powered off; when the push switch 60 is separated from the first push lever 70, the electric control 52 is powered on; Here, the push switch 60 can be of various types, such as electronic or mechanical, as long as it can be powered off when pressed, otherwise it can be powered on, then the object of the present invention can be achieved.

Further, the door body 2 is also provided with a first return spring 130 connected to the first pressing rod 70 , and the side of the first pressing rod 70 away from the box body 1 is provided with a first handle portion 71 ;

When the first handle portion 71 is pulled in a direction away from the box body 1, the first return spring 130 is compressed and the push switch 60 is separated from the first push rod 70;

When the first handle portion 71 is released and the door body 2 is closed, the first return spring 130 resets so that the first pressing rod 70 presses the push switch 60; here, the user opens the door body 2, it is only necessary to slightly drive the first handle portion 71 to separate it from the push switch 60, then the electric control 52 is energized and then the telescopic member 51 shrinks, stretching the gas cylinder 40 so that the The air pipe 20 is exhausted, and the door body 2 can be opened easily, the structure is simple, and the operation is convenient.

Specifically, the side of the box body 1 close to the door body 2 is inwardly recessed to form an accommodating cavity 160, and the push switch 60 is arranged in the accommodating cavity 160; the electric control 52 includes two wires terminal, the push switch 60 includes a contact piece 61 and a contact terminal 62 electrically connected to the two terminals respectively, and the contact piece 61 is a conductive material;

When the contact piece 61 is in contact with the two contact ends 62 , the electric control 52 is powered on; when the contact piece 61 is separated from the two contact ends 62 , the electric control 52 is powered off.

Further, the accommodating cavity 160 is also provided with a third return spring 150 connected to the contact piece 61, when the contact piece 61 is pressed by the first pressing rod 70, the third return spring 150 is compressed And the contact piece 61 is separated from the two contact ends 62;

When the contact piece 61 is separated from the first pressing rod 70, the third return spring 150 resets so that the contact piece 61 is in contact with the two contact ends 62; here, when the door body 2 When being pulled apart, since the third return spring 150 is reset, the electric control 52 is energized so that the gas pipe 20 is exhausted so that the door seal 10 is deflated, and then it is easier to close the door body 2 and achieve a sealed state, because the door seal 10 is in the contracted state, the door body 2 can be easily pushed to the closed position with the box body 1, at this time, the first pressing rod 70 just presses the contact piece 61, and the electric control 52 is powered off to inflate the air pipe 20 The door seal 10 seals the refrigerator 100 , the whole process is easy to operate, and the user experience is improved.

In another embodiment of the present invention, as shown in FIG. 7 to FIG. 16C , the box body 1 is provided with a first rope 90 connected to the telescopic member 51, and the other end of the first rope 90 is connected to the air cylinder. 40 is fixedly connected to the side away from the air vent 41; the telescopic member 51 includes a locking part 511 extending from the telescopic member 51 toward the direction of the door body 2, and the telescopic structure 50 also includes a The clamping structure 53 on the outside of the telescopic member 51 is adapted to cooperate with the clamping portion 511, and the clamping structure 53 is provided with a first clamping position 531 and a second clamping position 532, and the first clamping position 531 and the The distance between the first rope 90 is greater than the distance between the second locking position 532 and the first rope 90;

The driving device 3 also includes a sliding structure 80 connected to the telescopic member 51, the sliding structure 80 includes a sliding block 81, and the box body 1 is also provided with a second rope whose end is connected to the sliding block 81 110, the other end of the second rope 110 is fixedly connected to the side of the telescopic member 51 away from the first rope 90;

When the clamping portion 511 is clamped to the second clamping position 532, the telescopic member 51 is in an extended state;

When the sliding block 81 slides toward the door body 2 so that the engaging portion 511 engages with the first engaging position 531 , the telescopic member 51 is in a retracted state.

Specifically, the above-mentioned sliding structure 80 also includes a first sliding groove 82 and a second sliding groove 83 arranged horizontally and parallel to each other, the first sliding groove 82 is located above the second sliding groove 83, and the sliding The block 81 is provided with several bosses 815, wherein a part of the bosses 815 extend into the first slide groove 82, and the other part extend into the second slide groove 83;

The length of the first sliding groove 82 is greater than or equal to the distance between the first locking position 531 and the second locking position 532;

The side of the second pressing rod 120 close to the sliding block 81 is provided with an oblique protrusion 122 inclined toward the door body 2. When the second pressing rod 120 moves away from the box body 1, the The sliding block 81 is driven by the oblique protrusion 122 to slide towards the door body 2 .

Specifically, the driving device 3 as described above also includes a second pressing rod 120 arranged on the door body 2 and corresponding to the first locking position 531, and the second pressing rod 120 is far away from the box body. 1 is provided with a second handle part 121, when the door body 2 is in the closed state, if the second handle part 121 is pulled in the direction away from the box body 1, the second pressing rod 120 Separated from the first locking position 531 ; if the second handle portion 121 is not pulled, the second pressing rod 120 is engaged with the first locking position 531 .

Further, the door body 2 is also provided with a second return spring 140 connected to the second pressing rod 120, when the second handle part 121 is pulled in a direction away from the box body 1, the first return spring 140 The second return spring 140 is compressed and the second pressing rod 120 is separated from the first locking position 531;

When the second handle part 121 is released and the door body 2 is closed, the second reset spring 140 resets so that the second pressing rod 120 is engaged with the first locking position 531;

Here, during use, when the door body 2 needs to be opened, the user only needs to gently drive the second handle portion 121 so that the second return spring 140 is compressed and the second pressing rod 120 is disengaged from the first card. position 531, and then the inclined protrusion 122 drives the sliding block 81 to move toward the door body 2, and then pulls the telescopic member 51 to enter the extended state, so that the air cylinder 40 is stretched to make the air pipe 20 exhaust, that is, The door body 2 can be easily opened without effort, the operation is convenient, and the user experience is improved;

After the door body 2 is pulled open, it is easier to close the door body 2 to realize the sealing of the refrigerator 100. Since the gas pipe 20 is exhausted, that is, the door seal 10 is in a deflated state, the door body 2 can be easily pushed to the Closed with the box body 1, at this time, the second spring resets so that the engaging part 511 originally engaged in the first locking position 531 is pushed out by the second pressing rod 120, so that the second The pressing rod 120 is clamped to the first clamping position 531, and the clamping part 511 moves toward the second clamping position 532 after being squeezed, and is clamped to the second clamping position 532 and drives the telescopic member 51 into the The contracted state makes the air tube 20 inflated, thereby completing the sealing of the refrigerator 100 , the whole process is easy to operate, and the user experience is improved.

Preferably, in a specific embodiment of the present invention, as shown in FIG. 10 and FIG. 11 , the engaging portion 511 is made of elastic material; the gravity of the telescopic member 51 is greater than that of the sliding block 81 ;

In this way, when the door body 2 is closed, if a force is applied to the second handle portion 121 away from the direction of the box body 1, the oblique protrusion 122 of the second pressing rod 120 can drive the sliding block 81 toward the door. The body 2 slides, the telescopic member 51 is pulled upwards, and then the clamping part 511 is driven upwards to the first clamping position 531 from the original clamping part 532, because the clamping part 511 has Elasticity, originally received by the extrusion force of the inner wall of the locking structure 53, it disappears when it reaches the first locking position 531, so that the locking part 511 returns to its original shape and is locked in the first locking position 531, and the telescopic member 51 stretches out, the air pipe 20 exhausts, and the door body 2 can be easily opened;

When the door body 2 needs to be closed, the second pressing rod 120 is pressed against the first locking position 531 when the door body 2 reaches the closed position with the box body 1, and then the locking part 511 is moved toward the The extrusion force in the direction of the box body 1, because the gravity of the telescopic member 51 is greater than the gravity of the sliding block 81, the telescopic member 51 moves downward at this time, so that the engaging part 511 also moves downward to the At the second clamping position 532, the pressing force originally received by the inner wall of the clamping structure 53 disappears when the second clamping position 532 is reached, so that the clamping part 511 returns to its original state and is clamped in the second clamping position 532. The telescopic member 51 shrinks, and the air tube 20 is inflated so that the entire refrigerator 100 is completely sealed.

Preferably, as shown in FIG. 12 to FIG. 16C , the sliding structure 80 further includes a third sliding groove 84, the third sliding groove 84 is arranged at the end point of the second sliding groove 83 facing the door body 2 and has a shape of Arc-shaped, the third sliding groove 84 communicates with the second sliding groove 83 and the center of the arc of the third sliding groove 84 is the end point of the first sliding groove 82 towards the door body 2;

Here, as shown in Figures 12 to 14, when the second pressing rod 120 moves toward the door body 2, the inclined protrusion 122 drives the protrusion 815 of the sliding block 81 along the first One sliding groove 82 and the second sliding groove 83 slide toward the door body 2;

Afterwards, the sliding block 81 has been moved to the end points of the first sliding groove 82 and the second sliding groove 83 towards the door body 2;

Afterwards, the boss 815 located in the second sliding groove 83 will enter into the third sliding groove 84 and make a circular motion, while the boss 815 located in the first sliding groove 82 is always located at the end point towards the door body 2, which can It is understood that during this process, the sliding block 81 will slowly break away from the oblique protrusion 122, and finally no longer contact with the oblique protrusion 122;

Optionally, the first structure of the sliding block 81 is shown in Figures 15A to 15C, the sliding block 81 includes a main body 811, and the main body 811 is provided with protrusions for extending into the first and second sliding grooves 83. 815, so that the sliding block 81 can slide horizontally along the first and second sliding grooves 83, an opening 813 is provided at the bottom of the main body 811, and the opening 813 communicates with the external space below the main body 811, And it communicates with the external space of the main body 811 facing away from the door body 2, a rotating shaft 814 and a block 812 that can rotate along the rotating shaft 814 are arranged in the opening 813, and the block 812 protrudes from the opening 813 It can be understood that the locking block 812 can be rotated in a direction away from the door body 2, and when it is rotated toward the door body 2, it will finally be blocked by the side of the opening 813 facing the door body 2. In actual production, it can be Adjust the distance between the rotating shaft 814 and the side. When the distance is smaller, the angle at which the block 812 rotates toward the door body 2 will be smaller;

Here, during the process of closing the door, the ramp 122 will contact the clamping block 812 along the direction away from the door body 2. It can be understood that the clamping block 812 will rotate in the direction away from the door body 2. After that, The oblique protrusion 122 no longer touches the block 812 .

Optionally, the second structure of the sliding block 81 is shown in Figures 16A to 16C, the sliding block 8164 includes a main body 811, and the main body 811 is provided with protrusions for extending into the first and second sliding grooves 83. 815, so that the sliding block 81 can slide horizontally along the first and second sliding grooves 83, an opening 813 with the opening facing downward is provided at the bottom of the main body 811, and a locking block 812 is provided in the opening 813, and A fourth return spring 170816 is provided on the top of the block 812 and the opening 813, and when the block 812 is not subjected to upward pressure, the fourth return spring 170816 can push the block 812 out of the opening 813 , the surface of the locking block 812 facing the door body 2 is the first guiding surface 8122 , and the surface facing away from the door body 2 is the first limiting surface 8121 . Here, the second guide surface can be a slope;

Here, it can be understood that when the oblique protrusion 122 exerts a force toward the door body 2 from the second limiting surface, the sliding block 81 can be allowed to slide horizontally toward the first and second sliding grooves 83; and When the oblique protrusion 122 exerts a force away from the door body 2 from the second guide surface, the locking block 812 can be retracted into the opening 813, so the oblique protrusion 122 can smoothly move from the direction behind the sliding block 81 to the Located in the direction of the front side of the slider 81.

Preferably, the parts where the door seal 10 is in contact with the protrusion 30 are provided with dents, and the parts where the protrusion 30 is in contact with the door seal 10 are all provided with dents; of course, if the door seal 10 is in contact with If the contact parts of the door body 2 are all rough, the friction force between the door seal 10 and the door body 2 can be greatly improved, and the purpose of the present invention can also be achieved.

To sum up, the present invention proposes a refrigerator 100. An air pipe 20 is embedded in the door seal 10 fixed on the front side of the outer edge of the box body 1, and the air pipe 20 is simply controlled to exhaust and Inflation realizes the adjustment of the degree of sealing between the door body 2 and the box body 1. When the door body 2 is closed, the driving device 3 drives the air pipe 20 to inflate the door seal 10 to seal the refrigerator 100, so that the The door body 2 is closely attached to the box body 1, thereby reducing cooling loss and energy consumption; when the door body 2 is pulled, the driving device 3 drives the air pipe 20 to exhaust to eliminate the door seal 10 The frictional force between the door body 1 and the box body 1 facilitates the user to easily open the door body 2 , the structure is simple and the sense of use is improved.

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the inventive concept of the present invention, some modifications and improvements can also be made, and these all belong to the present invention. protection scope of the invention.

Claims (9)

1. A kind of refrigerator, described refrigerator is provided with casing and the door body that is used to seal casing, it is characterized in that, described refrigerator comprises the door seal that is fixed on the front side of the outer edge place of described casing, in door body When closed, the door seal is sealed between the door body and the box body; the door seal is hollow inside, and the box body also includes an air tube embedded in the door seal, and the air tube can be inflated or exhaust to drive the door seal to expand or contract, the air pipe includes an outlet, and the refrigerator is provided with a driving device for driving the air pipe to inflate or exhaust; The door body includes a protruding part disposed toward one side of the box body. When the door body is closed, the driving device drives the air pipe to inflate to make the door seal seal the refrigerator; when the door body is pulled , the driving device drives the air pipe to exhaust to eliminate the friction between the door seal and the door body; The driving device also includes a telescopic structure, the telescopic structure includes a telescopic member, a locking structure covering the outside of the telescopic member, and a sliding structure connected to the telescopic member, the telescopic member has an extended state and a contracted state. state, the telescopic member includes a clamping portion extending from the telescopic component toward the door body, the clamping structure cooperates with the clamping portion, and the clamping structure is provided with a first clamping position and a For the second locking position, the driving device further includes a second pressing rod arranged on the door body and corresponding to the first locking position; The sliding structure includes a sliding block, a first sliding groove and a second sliding groove arranged horizontally and parallel to each other, the first sliding groove is located above the second sliding groove, and the sliding block is provided with several bosses, wherein A part of the boss extends into the first sliding groove, and another part extends into the second sliding groove; The length of the first sliding groove is greater than or equal to the distance between the first locking position and the second locking position; The side of the second pressing rod close to the sliding block is provided with an oblique protrusion inclined toward the door body, when the second pressing rod moves away from the box, the sliding block is moved by the oblique The protruding piece is driven to slide towards the door body. 2. A refrigerator according to claim 1, wherein the driving device comprises an air cylinder arranged in the box, the air cylinder is connected to the telescopic structure, and the surface of the air cylinder is folded so that the gas cylinder can be compressed or stretched, and the gas cylinder is provided with a vent opening communicating with the outlet, when the gas cylinder is stretched, the air pipe is exhausted; when the gas cylinder is compressed, the The trachea is inflated. 3. The refrigerator according to claim 2, wherein the telescopic member is connected to the side of the air cylinder away from the air vent, and when the telescopic member is in a contracted state, the air cylinder is pulled Stretch; when the telescopic part is in the extended state, the air cylinder is compressed. 4. The refrigerator according to claim 3, wherein the telescopic structure further includes an electric control for controlling the extension or contraction of the telescopic member, and when the electric control is powered on, the telescopic member It is in a retracted state; when the electric control is powered off, the telescopic element is in an extended state. 5. A refrigerator according to claim 4, characterized in that, the box is provided with a switch electrically connected to the electric control, and the switch includes a switch arranged on the box close to the door. side push-type switch, the side of the door close to the box is provided with a first push-rod corresponding to the push-type switch; When the first push lever presses the push switch, the electric control is powered off; when the push switch is separated from the first push lever, the electric control is powered on. 6 . The refrigerator according to claim 5 , wherein the door body is further provided with a first return spring connected to the first pressing rod, and the first pressing rod is far away from the side of the box body. One side is provided with a first handle; When the first handle is pulled in a direction away from the box, the first return spring is compressed and the push switch is separated from the first push rod; When the first handle portion is released and the door body is closed, the first return spring returns to make the first pressing rod press the push switch. 7. The refrigerator according to claim 3, wherein the box body is provided with a first rope connected to the telescopic member, and the other end of the first rope is away from the air cylinder from the air vent one side is fixedly connected; the distance between the first card position and the first rope is greater than the distance between the second card position and the first rope; The box body is also provided with a second rope whose end is connected to the sliding block, and the other end of the second rope is fixedly connected to the side of the telescopic member away from the first rope; When the clamping portion is clamped to the second clamping position, the telescopic member is in an extended state; When the sliding block slides toward the door body so that the engaging portion engages with the first engaging position, the telescopic member is in a retracted state. 8. The refrigerator according to claim 7, wherein a second handle is provided on the side of the second pressing rod away from the box body, and when the door body is in a closed state, if the If the second handle part is pulled in the direction away from the box, the second pressing rod will be separated from the first locking position; if the second handle part is not pulled, the second pressing rod will be locked connected to the first card position. 9. A refrigerator according to claim 8, characterized in that, the door body is further provided with a second return spring connected to the second pressing rod, when the second handle part is away from the box body When being pulled in the direction, the second return spring is compressed and the second pressing rod is separated from the first locking position; When the second handle part is released and the door body is closed, the second return spring returns to make the second pressing lever engage with the first locking position.

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