CN107677028A - Refrigerator - Google Patents

Abstract

A refrigerator, comprising a storage room (1), shelves (2, 2') located in the storage room (1), and rails (41, 41' for supporting the shelves (2, 2') , 42), the track (41, 41 ', 42) includes a first track (41, 41 ') extending in the front-rear direction or a left-right direction and a second track (42) extending in the height direction, the The shelves (2, 2') include a plurality of elongated shelves (20) arranged side by side, and adjacent shelves (20) are rotatably connected, and the shelves (2, 2') Slidable along said first track (41, 41') and second track (42). Therefore, the user can adjust the shape and/or position of the shelf (2, 2') according to needs, thereby improving and enhancing the user experience of the refrigerator.

Description

refrigerator

technical field

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

Background technique

At present, the refrigerator includes a storage room and a shelf located in the storage room. The shelf is a flat plate and is generally placed horizontally in the storage room. The two sides of the shelf are supported on the raised strips on the two side walls of the storage room. However, this shelf will take up a large space in the storage room. Especially when the shelf is idle, it will take up a large space in the storage room, resulting in a decrease in the space utilization rate of the storage room.

Contents of the invention

An object of the present invention is to provide a refrigerator with shelves that is beneficial to improve user experience.

In order to solve the above problems, the present invention provides a refrigerator, which includes a storage room, a shelf located in the storage room, and a track for supporting the shelf, and the track includes The first track and the second track extending in the height direction, the shelf includes a plurality of elongated shelves arranged side by side, and the adjacent shelves are rotatably connected, and the shelf can be moved along Sliding along the first track and the second track.

When the shelf needs to be used, the shelf can be at least partially supported on the first rail, and since the first rail extends in the front-rear direction or the left-right direction, the shelf can be at least partially in a storage state suitable for supporting items to be cooled (such as horizontal state). When there is no need to use the shelf, the shelf can be slid left and right or forward and backward corresponding to the extension direction of the first track, and the shelves of the shelf can be rotated at the corner of the first track and the second track to slide from the first track to the second track. Two tracks, and corresponding to the extending direction of the second track, slide up or down along the second track, at least part of the shelf can be turned from the storage state to an idle state that takes less available space in the storage room (for example, at least part of the shelf can be in a vertical position state). Therefore, when not in use, the shelf is in an idle state that occupies less available space in the storage room of the refrigerator, thereby improving the space utilization rate of the storage room.

Therefore, the user can adjust the shape and/or position of the shelf according to needs, and the shelf is easy to operate and convenient for the user to use. The refrigerator with the shelf in the technical solution can improve user experience.

Optionally, the refrigerator includes a cover plate located in the storage chamber, and the second track is at least partially covered by the cover plate. In this way, when the shelf is at least partly limited to the second track, it can be covered by the cover plate, so that it is not easy to be observed by the user, thereby improving the perception of the storage room by the user.

Such a cover plate may be formed by the peripheral wall of the storage container, and may also be formed independently of the storage container and installed along a wall of the storage room.

Optionally, the refrigerator includes a storage container located in the storage chamber, and the second track is at least partially covered by a side wall of the storage container. The second track and the shelf can be at least partially covered by a side wall of the storage container, which can prevent the shelf from being exposed when not in use, thereby improving the aesthetics of the product.

The side wall of the storage container may include a left wall, a right wall and a rear wall, and the second rail may be fixed to the left wall, the right wall and/or the rear wall, so that the second rail may be at least partially formed by the corresponding side wall of the storage container. Covered by the left, right and/or rear walls.

Optionally, the first track is located within the storage container, and the shelf is at least partially slidable into or at least partially out of the storage container. The shelf can be at least partially located in the storage container when in use, thereby increasing the storage function of the storage container.

Optionally, the second track is located at the rear of the storage container, and the shelf is at least partially slidable to the rear of the storage container.

Optionally, the side wall has a through hole through which the shelf passes. Thus the shelf can slide continuously on the first track and the second track through the through hole. Due to the rotatable connection between the adjacent shelves, by properly arranging the size and shape of the through holes, the through holes can limit the rotation track of the shelves at the corners of the first track and the second track to a certain extent, preventing The shelf bar moves upwards to keep the traveling stability of the shelf.

Optionally, the second track is fixed to the side wall of the storage container. In this way, when the shelf is idle, the idle portion of the shelf can be fixed to said side wall of the storage container. Accordingly, it is contemplated that the shelf forms a mounting module with the storage container.

Optionally, the first track is close to the upper opening of the storage container. When the shelf is used, it can be close to the upper opening of the storage container, which can make the space volume of the storage container under the shelf larger. When the shelf is in use, the storage container can also hold a larger space to store more items.

Optionally, the first track and/or the second track are fixed to the inner wall of the storage compartment. In this way, the shelf can be parallel and close to the inner wall of the storage room when it is restricted, and the shelf can release the space in the storage room to save the space in the storage room.

Optionally, the sum of the lengths of the first track and the second track is approximately equal to twice the length of the shelf. Thus, it is contemplated that the shelf is at least mostly within the first track when in use and at least mostly within the second track when not in use. Here, equal may include nearly equal or exactly equal.

Optionally, an end of the first track away from the second track is provided with a front stopper. The front stop portion limits the maximum length of the shelf that can be pulled out, preventing the shelf from breaking away from the second track when it is pulled outward.

Optionally, one end of the first track close to the second track is provided with a rear stopper, and the rear stopper has a through hole for the shelf to pass through, and the shelf is located on the second track. A portion within the track has a protruding end with an overlapping portion with the rear stop. Since the protruding end and the rear stop part have an overlapping part, when the shelf slides from the first rail to the second rail, the protruding end can abut against the rear stop part, so that the shelf cannot continue to move, preventing the shelf from completely detaching from the first rail. track and fall.

Optionally, it includes a rotating shaft arranged on one of the two adjacent shelves, and an accommodating hole arranged on the other of the two adjacent shelves, and the rotating shaft is accommodated in the accommodating hole and can rotate in the receiving hole.

Optionally, the shelf bar is provided with a connecting portion connected to the rotating shaft, and the hole wall of the receiving hole has an opening extending in the axial direction.

Optionally, each shelf bar has the rotating shaft and the receiving hole. Therefore, the rotating shaft and the receiving hole of a shelf can be respectively connected with the receiving hole of the first adjacent shelf on one side and the rotating shaft of the second adjacent shelf on the other side, so that the adjacent shelves A rotatable connection can be established. It is contemplated that each shelf has the same structure for ease of manufacture.

Optionally, the shelf bar includes a resting portion, and the rotating shaft and the receiving hole are located between the upper surface and the lower surface of the resting portion. In this way, no matter whether the shelving part is on the first track and slides along the first track, or the shelving part is on the second track and slides along the second track, the rotating shaft and the accommodating hole will not be higher than the upper surface and the lower surface of the shelving part, so that the shelving part The board can slide smoothly and be stably supported on the first track and the second track.

Optionally, at least a plurality of said shelves are of the same configuration and are extrusions. At least a plurality of shelves have the same configuration, eg, have the same cross-section shape, so that the shelves can be produced by extrusion using a pair of molds. The extrusion process is simple to operate and low in cost.

Optionally, the shelf is a hollow structure. The shelf is light in weight and saves material.

Description of drawings

Fig. 1 is a perspective view of a refrigerator according to a specific embodiment of the present invention;

Fig. 2 is a perspective view of the storage container in the refrigerator shown in Fig. 1;

Fig. 3 is a schematic diagram of the cooperative relationship between two adjacent shelves in the refrigerator inner shelf shown in Fig. 2;

Fig. 4 is a sectional view of the storage container in the refrigerator shown in Fig. 1;

Fig. 5 is a schematic diagram of the cooperative relationship between the shelf in the refrigerator shown in Fig. 1 and the first rail when the front end of the shelf slides to the rear end of the first rail.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1 and in conjunction with Fig. 2, the refrigerator includes: a storage room 1, a shelf 2 and a shelf 2' located in the storage room 1, a storage container 3 located in the storage room 1, and a support for the shelf 2 and the shelf 2' track. Corresponding to shelf 2 and shelf 2', the rails are divided into two groups. Corresponding to the shelf 2, the track includes a first track 41 located in the storage container 3 and a second track 42 fixed to the rear wall 30 of the storage container 3. Only one first track 41 is shown in FIG. The first track is not visible because it is occluded. Corresponding to the shelf 2 ′, the track includes a first track 41 ′ and a second track fixed on the side wall of the storage room 1 , and the second track is hidden from view in FIG. 1 .

The technical solution will be described below for the two shelves 2 and 2' and the corresponding tracks respectively.

first embodiment

Referring to FIG. 1 in conjunction with FIG. 2 , corresponding to the shelf 2 , the track includes a first track 41 extending in the front-back direction A and a second track 42 extending in the height direction B. Referring to FIG. Referring to FIG. 3 , the shelf 2 includes a plurality of elongated shelves 20 arranged side by side, and adjacent shelves 20 are rotatably connected, and the shelf 2 can slide along the first track 41 and the second track 42 . The front-back direction A mentioned here refers to the direction from the refrigerator rear wall 11 to the refrigerator opening 1a, and the height direction B refers to the direction along the height of the refrigerator.

When the shelf 2 needs to be used, the shelf 2 can be at least partially supported on the first rail 41. Since the first rail 41 extends in the front-to-back direction A, the shelf 2 can be at least partially in a storage area suitable for supporting the items to be cooled. state (e.g. horizontal state). When the shelf 2 is not needed, the shelf 2 can be slid back and forth corresponding to the extension direction of the first rail 41, and the shelf bar 20 of the shelf 2 can be rotated at the corner of the first rail 41 and the second rail 42 to move from the first rail 41 to the second rail 42. One track 41 slides to the second track 42, and slides up or down along the second track 42 corresponding to the extension direction of the second track 42, at least part of the shelf 2 can be turned from the storage state to the idle state that occupies less storage room 1 available space state (for example, shelf 2 may be at least partly in a vertical state). Therefore, when not in use, the shelf 2 is in an idle state that occupies less available space in the storage room 1 of the refrigerator. In this case, the space in the storage room 1 can be saved, and the space utilization rate of the storage room 1 can be improved.

Therefore, the user can adjust the shape and/or position of the shelf 2 according to needs, and the shelf 2 is easy to operate and easy for the user to use. The refrigerator with the shelf 2 in this technical solution can improve user experience.

The first track 41 is located in the storage container 3 , and the shelf 2 can at least partially slide into the storage container 3 or at least partially exit the storage container 3 . The shelf 2 can be at least partially located in the storage container 3 when in use, thereby increasing the storage function of the storage container 3 .

The storage container 3 can be a drawer located in the storage room 1, and the shelf 2 can be used as a dumpling tray.

Referring to Fig. 1, Fig. 2 and Fig. 4, the side wall of the storage container 3 comprises a rear wall 30, a left wall 31 and a right wall 32, and a first rail 41 is respectively fixed on the left wall 31 and the right wall 32 of the storage container 3 , the first track 41 on the right wall 32 of the storage container 3 is hidden from view, and its structure can refer to the first track 41 on the left wall 31 . The two ends of the shelf 2 are respectively defined in two first rails 41. The first rails 41 can not only guide the sliding of the shelf 2, but also prevent the shelf 2 from collapsing between adjacent shelves 20 when the shelf 2 is placed horizontally. Relative rotation, to keep the stability of the shelf 2.

In addition, the following design can be made: the first rail located on the storage container 3 can be fixed on the rear wall 30 and extend along the left-right direction C, and the second rail is fixed on the left wall 31 and/or the storage container 3 Or on the right wall 32 and extend along the height direction. At this time, the shelf can be pushed left or right, the shelf slides along the first track on the rear wall 30, and the shelf can at least partially slide to the left wall 31 and/or the right wall 32 through the second track. or retreat from the left wall 31 and/or the right wall 32 into the storage container 3 .

The first rail 41 is close to the upper opening 3a of the storage container 3, and the shelf 2 can be close to the upper opening 3a of the storage container 3 when in use, which can make the space volume of the storage container 3 below the shelf 2 larger. When the shelf 2 is in use, the storage container 3 can also accommodate a larger space to store more items.

The second rail 42 can be fixed to the rear wall 30 of the storage container 3 , and the idle part of the shelf 2 can be fixed to the rear wall 30 of the storage container 3 . Besides, the second rail can be fixed to the left wall 31 and/or the right wall 32 of the storage container, and the idle part of the shelf 2 can be fixed to the left wall 31 and/or the right wall 32 of the storage container 3 . Therefore, the second rail can be fixed to a side wall of the storage container 3 . Therefore, when the shelf 2 is idle, the idle portion of the shelf 2 can be fixed to the side wall of the storage container 3 . Therefore, it is contemplated that the shelf 2 and the storage container 3 form an installation module.

The refrigerator includes a cover plate 5 located in the storage compartment 1 , and the second track 42 is at least partially covered by the cover plate 5 . The cover plate 5 and the rear wall 30 of the storage container 3 are oppositely arranged, and two second rails 42 are arranged on the left and right sides respectively, and the shelf 2 can at least partially retreat between the cover plate 5 and the rear wall 30 of the storage container 3 . In this way, when the shelf 2 is at least partially defined by the second track 42 , it can be covered by the cover plate 5 to prevent the shelf 2 from swinging and maintain the stability of the shelf 2 . Moreover, when the shelf 2 is at least partly defined by the second track 42 , it can be covered by the cover plate 5 , so that it is not easy to be observed by the user, which is beneficial to improve the perception of the storage room 1 by the user.

The cover 5 can be formed by the rear wall 30 of the storage container 3 . In addition, the second track can be fixed to the left wall 31 and/or the right wall 32 of the storage container 3 , so a cover can be provided on the corresponding left wall 31 or right wall 32 to cover the second track. Therefore, the second rail can be fixed to a side wall of the storage container 3 and can be at least partially covered by a cover plate provided in the storage compartment 1 .

Except that the cover plate 5 can be provided to cover the second track 42 and the shelf part supported on the second track 42 , when the second track 42 can be installed on the rear wall 30 of the storage container 3 , no cover plate can be provided. In this way, when the shelf 2 is at least partially retracted to the rear of the storage container 3, the second track and the shelf 2 can be at least partially covered by the rear wall 30, which can prevent the shelf 2 from being exposed when it is idle, and improve the aesthetics of the product. In addition, when the shelf slides to the rear of the storage container 3, the shelf 2 is at least partially sandwiched between the storage container 3 and the rear wall 11 of the storage room 1, and cannot swing freely, thereby enhancing the stability of the shelf 2. Therefore, the second rail 42 can be located at the rear of the storage container 3 , and the shelf 2 can at least partially slide to the rear of the storage container 3 .

As an alternative, the second track can be fixed to the left wall 31 or the right wall 32 of the storage container 3 , so the second track can be covered by the corresponding left wall 31 or right wall 32 outside the storage container 3 . Therefore, the second rail can be covered by a side wall of the storage container, thereby improving the aesthetics of the product.

The rear wall 30 of the storage container 3 has a through hole 30a through which the shelf 2 passes. Thus, the shelf 2 can pass through the through hole 30 a to continuously slide on the first rail 41 and the second rail 42 . Since the adjacent shelves 20 are rotatably connected, by properly arranging the size and shape of the through holes 30a, the through holes 30a can limit the turning of the shelves 20 on the first track 41 and the second track 42 to a certain extent. The rotation track at the position prevents the shelf bar 20 from moving upwards and keeps the traveling stability of the shelf 2.

In addition, the left wall 31 and/or the right wall 32 of the storage container 3 can be provided with a second track, and the left wall 31 and/or the right wall 32 can have a through hole for the shelf to pass through accordingly, and the shelf Slide through the through hole into the storage container 3 or at least partly exit the storage container 3 .

The sum of the lengths of the first track 41 and the second track 42 is roughly equal to twice the length of the shelf 2 , where equal includes nearly equal or completely equal. Thus, it is contemplated that the shelf 2 is at least mostly within the first track 41 when in use and at least mostly within the second track 42 when not in use.

Referring to FIG. 2 and FIG. 4 , the first track 41 has an end D away from the second track 42 and another end E close to the second track 42 . The end D of the first rail 41 away from the second rail 42 is provided with a front stopper 410, the front stopper 410 limits the maximum length of the shelf 2 that can be pulled out, and prevents the shelf 2 from disengaging when it is pulled outward. Second track 42.

Referring to FIG. 5 , the end E of the first rail 41 close to the second rail 42 is provided with a rear stopper 411 , the rear stopper 411 has a through hole 411 a for the shelf 2 to pass through, and the shelf 2 is located in the first rail 41 The portion has a protruding end 21, and the protruding end 21 and the rear stopper 411 have overlapping portions. Since the protruding end 21 and the rear stopper 411 have an overlapping portion, the shelf 2 can withdraw backward until the protruding end 21 abuts the rear stopper 411, so that the shelf 2 cannot continue to move, preventing the shelf 2 from breaking away from the first track 41 and drop into the rear wall 30 of the storage container 3.

The shelf bar 20 at the front end of the shelf 2 can be designed as a handle for pulling and pushing the shelf 2 . The protruding end 21 of the shelf 2 can be arranged on the shelf bar 20 at the front end of the shelf 2 .

Referring to Fig. 3 and Fig. 5, the refrigerator includes a rotating shaft 22 disposed on one of the adjacent two shelves 20, and an accommodating hole 23 disposed on the other of the adjacent two shelf bars 20, the rotating shaft 22 is accommodated in the accommodating and can be rotated in the receiving hole 23 , which can realize the rotatable connection between the adjacent shelf bars 20 .

The shelf bar 20 is provided with a connecting portion 24 connected to the rotating shaft 22, and the hole wall of the receiving hole 23 has an opening 23a extending in the axial direction. The connecting portion 24 passes through the opening 23a, and the opening 23a can define the rotating shaft 22 in the receiving hole 23 on the one hand to prevent the rotating shaft 22 from turning out of the receiving hole 23, and on the other hand, it also defines the relative rotation of the adjacent shelves 20. maximum angle.

The shelf bar 20 includes a shelving portion 24. The rotating shaft 22 and the receiving hole 23 are located between the upper surface 25a and the lower surface 25b of the shelving portion 25. The upper surface 25a of the shelving portion 25 is the surface facing the top of the refrigerator when the shelf 2 is in use. , the lower surface 25b is the surface facing away from the upper surface 25a. Regardless of whether the shelf 2 is supported on the first rail 41 for use, or supported on the second rail 42 for being idle, or at the turning point between the first rail 41 and the second rail 42, the rotating shaft 22 and the receiving hole 23 of the shelf bar 20 And the connecting part 24 is always between the upper surface 25a and the lower surface 25b of the resting part 25, and will not be higher than the upper surface 25a and the lower surface 25b of the resting part 25, so that the shelf 2 can slide smoothly and be stably supported on the The first track 41 and the second track 42 .

Each shelf bar 20 can have a rotating shaft 22 and a receiving hole 23 , and the rotating shaft 22 and the receiving hole 23 are respectively provided at two ends of the shelf bar 20 to be rotatably connected with corresponding adjacent shelf bars 20 . Thus, the rotating shaft 22 and the receiving hole 23 of a shelf bar 20 can be respectively connected with the receiving hole 23 of the first adjacent shelf bar 20 on one side and the rotating shaft 22 of the second adjacent shelf bar 20 on the other side, As a result, adjacent shelves 20 can be rotatably connected. It is contemplated that each shelf 20 has the same structure for ease of manufacture.

Therefore, at least a plurality of shelf bars 20 have the same structure, and each shelf bar 20 includes a rotating shaft 22 connected as one, an accommodating portion 23, a connecting portion 24 and a resting portion 25, and the cross-sectional shape of the shelf bar 20 is the same, so it can be used The same secondary mold adopts an extrusion molding process to form at least a plurality of shelf bars 20 . Utilizing the extrusion process, a pair of molds can form the shelves 20 of different lengths, which reduces production costs. The shelf bar 20 can be a hollow structure, which can save materials and reduce production costs.

The material of the shelf bar 20 can be PE material, which is beneficial to extrusion molding. For the connection part 24, when the connection part 24 has a thinner thickness, the PE material makes the connection part 24 soft, which makes the connection part 24 rotate and deform when the shelf bar 20 is wound, which is beneficial to the shelf bar 20 turning.

The shelf bar 20 can be a hollow structure, for example, at least the shelf part 25 has a cavity, which can save materials and reduce production costs.

second embodiment

Referring to Fig. 1, another shelf 2' other than the storage container 3 is also provided in the storage room 1, the structure of the other shelf 2' can refer to the shelf 2, and the structure of the shelf 2 can be analogized to another Shelf 2'.

The inner walls of the storage compartment 1 include a left wall 10 , a rear wall 11 and a right wall 12 . Corresponding to the shelf 2', the first track 41' is set on the left wall 10 and the right wall 12 of the storage room 1 and another second track (the second track is hidden from view) is set on the rear wall 11 of the storage room 1 , another shelf 2' can slide along the first track 41' on the left wall 10 and the right wall 12 and the second track on the rear wall 11, and can slide from the first track 41' on the left wall 10 and the right wall 12. 41' slides to at least partly limited by the second track on the rear wall 11 of the storage room 1, so as to avoid another idle shelf 2' occupying the space of the storage room 1, or slides from the second track on the rear wall 11 to at least Partially supported on the first rail 41' to place items on this other shelf 2'.

The first track 41 ′ is arranged on the left wall 10 and the right wall 12 of the storage room 1 and extends in the front-back direction A, and the second track is arranged on the rear wall 11 and extends in the height direction B. In addition, the following design can be made: the first track 41' can be arranged on the rear wall 11 of the storage room and extend along the left-right direction, and the second track can be arranged on the left wall 10 and/or the right wall 12 of the storage room and Extends in height direction B. When the corresponding shelf is idle, the shelf can be slid left or right, and at least part of the shelf can be bounded by the second rail on the left wall 10 and/or the right wall 12 to free up the storage interior space. When the corresponding shelf is to be used, at least part of the shelf can slide from the second rail to the first rail 41', to spread out horizontally and rest on the first rail 41'. Therefore, the first rail 41 ′ and/or the second rail may be fixed to the inner wall of the storage room 1 .

The second track extends in the height direction of the refrigerator, and can extend upwards from an end close to the first track, so that the shelf 2' can slide from the first track to the second track and continue to slide upward along the second track; or, the second The track may extend downward from an end close to the first track, so that the shelf 2' can slide downward along the second track.

The second track may be fixed to the rear wall 11 of the storage compartment 1 , and the refrigerator may include a cover plate disposed on the rear wall 11 . When the shelf 2' is at least partially limited to the second track, the second track and the shelf 2' can be at least partially covered by the cover plate, so that it is not easy to be observed by the user, which is conducive to improving the user's perception of the storage room 1, and improving the user experience. Product aesthetics. Moreover, the shelf 2' may be covered by a cover to prevent the shelf 2' from swinging.

The second rail can be fixed to the left wall 10 and/or the right wall 12 of the storage room 1, in which case it can be along the left wall 10 and/or the right wall of the storage room 1 independently of the storage container 3, respectively. 12 to install the cover.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (18)

1. A refrigerator, comprising a storage compartment (1), a shelf (2, 2') located in the storage compartment (1), and a track (41, 41, for supporting the shelf (2, 2') 41', 42), the track (41, 41', 42) includes a first track (41, 41') extending in the front-rear direction or a left-right direction and a second track (42) extending in the height direction, It is characterized in that the shelf (2, 2') comprises a plurality of elongated shelves (20) arranged side by side, and adjacent shelves (20) are rotatably connected, and the shelf (2, 2') are slidable along said first track (41, 41') and second track (42). 2. The refrigerator according to claim 1, characterized in that it comprises a cover plate (5) located in the storage chamber (1), and the second rail (42) is at least partially covered by the cover plate (5) cover up. 3. The refrigerator according to claim 1 or 2, characterized in that it comprises a storage container (3) located in the storage room (1), and the second track (42) is at least partially formed by the storage container (3). One side wall (30, 31, 32) of the container (3) is covered. 4. The refrigerator according to claim 3, characterized in that, the first rail (41) is located in the storage container (3), and the shelf (2) can at least partially slide to the storage container container (3) or at least partly exits said storage container (3). 5. The refrigerator according to claim 4, characterized in that, the second rail (42) is located behind the storage container (3), and the shelf (2) can at least partially slide to the storage container (3). the rear of the object container (3). 6. The refrigerator according to claim 3, characterized in that, the side walls (30, 31, 32) have through holes (3a) through which the shelves (2) pass. 7. The refrigerator according to claim 3, characterized in that, the second rail (42) is fixed to the side wall (30, 31, 32) of the storage container (3). 8. The refrigerator according to claim 3, characterized in that, the first rail (41) is close to the upper opening (3a) of the storage container (3). 9. The refrigerator according to claim 1, characterized in that, the first track (41') and/or the second track are fixed to the inner wall (10, 11, 12) of the storage room (1) . 10. The refrigerator according to claim 1, characterized in that the sum of the lengths of the first track (41, 41') and the second track (42) is roughly equal to two times the length of the shelf (2). times. 11. The refrigerator according to claim 1, characterized in that, an end of the first rail (41) away from the second rail (42) is provided with a front stop portion (410). 12. The refrigerator according to claim 1, characterized in that, one end of the first rail (41) close to the second rail (42) is provided with a rear stopper (411), and the rear stopper (411) has a through hole (411a) for the shelf (2) to pass through, and the part of the shelf (2) located in the first track (41) has a protruding end (21), and the protruding The end (21) and said rear stop (411) have overlapping portions. 13. The refrigerator according to claim 1, characterized in that it comprises a rotating shaft (22) arranged on one of two adjacent shelves (20), and a rotating shaft (22) arranged on two adjacent shelves (20). Another accommodating hole (23) in (20), the rotating shaft (22) is accommodated in the accommodating hole (23) and can rotate in the accommodating hole (23). 14. The refrigerator according to claim 13, characterized in that, the shelf (20) is provided with a connecting portion connecting the rotating shaft (22), and the hole wall of the receiving hole (23) has a opening (23a). 15. The refrigerator according to claim 13, characterized in that, each shelf (20) has the rotating shaft (22) and the receiving hole (23). 16. The refrigerator according to claim 13, characterized in that, the shelf (20) includes a resting portion (25), and the rotating shaft (22) and the receiving hole (23) are located in the resting portion (25) ) between the upper surface (25a) and the lower surface (25b). 17. The refrigerator according to claim 13, characterized in that at least a plurality of said shelf bars (20) have the same configuration and are extrusions. 18. The refrigerator according to claim 1, characterized in that, the shelf (20) is a hollow structure.