CN211833415U

CN211833415U - Foldable storage rack

Info

Publication number: CN211833415U
Application number: CN201922141535.1U
Authority: CN
Inventors: 梁海鹏
Original assignee: Zhongshan Weigao Household Products Co ltd
Current assignee: Zhongshan Weigao Household Products Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-11-03
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a collapsible storing frame, include: side frame, connecting arm and shelf. During collapsible storing frame expansion state, can satisfy user's storing needs, when transportation or idle, the folding process is accomplished to collapsible storing frame's side frame, linking arm and shelf linkage, under the fold condition collapsible storing frame, shared space is little, is convenient for put, transports, in addition, expandes or folding in-process, need not dismouting spare part, is favorable to preventing that spare part from losing.

Description

Foldable storage rack

Technical Field

The utility model relates to a household articles field particularly relates to a collapsible storing frame.

Background

The conventional storage rack generally includes two side frames and a plurality of laminates horizontally connected to the side frames at intervals, but since the conventional storage rack is mainly welded, it is not detachable and detachable. For manufacturers, the problems of complicated welding process, large conveying space and increased cost exist, and the disassembly and assembly mode causes the problem that the storage rack is troublesome to install and even parts are lost, so that the storage rack cannot be installed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, the utility model provides a foldable storage rack.

According to a first aspect embodiment of the present invention, a collapsible storage shelf comprises: side frame, connecting arm and shelf. A side frame including a first side frame and a second side frame; guide grooves are respectively formed in the rear side faces of the first side frame and the second side frame; the guide groove is a long strip extending along the vertical direction; the connecting arm is positioned at the rear side of the foldable storage rack and comprises a first connecting arm and a second connecting arm; one end of the first connecting arm and one end of the second connecting arm are respectively hinged with the sliding shaft; the first connecting arm is connected with the second connecting arm in an intersecting manner; the sliding shaft is embedded in the guide groove and slides along the guide groove, and when the sliding shaft slides to two ends of the guide groove, the foldable storage rack is in an unfolded state or a folded state; the other end of the first connecting arm is hinged with the second side frame; the other end of the second connecting arm is hinged with the first side frame; when the foldable storage rack is in an unfolded state, the first side frame and the second side frame are respectively positioned on the left side and the right side of the foldable storage rack; when the foldable storage rack is in a folded state, the first side frame and the second side frame are close to each other; the shelf comprises a left shelf and a right shelf, and one end of the left shelf is hinged with one end of the right shelf; the other end of the left shelf is hinged with the first side frame, and the other end of the right shelf is hinged with the second side frame; when the foldable storage rack is in an unfolded state, the left shelf and the right shelf are both positioned in a horizontal position; when the foldable storage rack is in a folded state, the left shelf and the right shelf rotate to be close to each other.

According to some embodiments of the present invention, the foldable storage rack comprises a first side frame and a second side frame, wherein the first side frame and the second side frame are respectively provided with a guide groove; when the sliding shaft slides to the lower end of the guide groove, the foldable storage rack is in an unfolded state; when the sliding shaft slides to the upper end of the guide groove, the foldable storage rack is in a folded state.

According to some embodiments of the present invention, the shelf is a plurality of shelves and is distributed along a vertical direction; the collapsible storage shelf further comprises: a guide bar; the guide rod is positioned at the rear side of the foldable storage rack and is connected with the shelf.

According to some embodiments of the utility model discloses a collapsible storage rack still includes: the first locking device or the second locking device is used for locking the connecting arm when the foldable storage rack is in an unfolded state; the first locking device is positioned at the rear side of the foldable storage rack and comprises a first limiting rod, a first locking plate and an adjusting piece; one end of the first limiting rod is fixed on the guide rod; one end of the adjusting piece and one end of the first locking piece are hinged to the connecting arm; when the locking is carried out, the other end of the first locking piece is connected with the other end of the first limiting rod in a clamping manner; the adjusting piece is used for adjusting the tightness of the clamping connection between the other end of the first lock piece and the other end of the first limiting rod; the second locking device is positioned at the rear side of the foldable storage rack and comprises a second limiting rod and a second locking plate; one end of the second locking plate is hinged to the guide rod; one end of the second limiting rod is fixed on the connecting arm; and when the locking is carried out, the other end of the second locking plate is connected with the other end of the second limiting rod in a clamping manner.

According to some embodiments of the utility model discloses a collapsible storage rack still includes: a top plate; the top plate is positioned at the upper end of the foldable storage rack; one side of the top plate is hinged or detachably buckled with one side of the side frame, and the top plate can be turned over up and down.

The foldable storage shelf according to some embodiments of the present invention further comprises a support bar and a suspension device; the top plate is connected to one side of the side frame through the suspension device; one end of the supporting rod is connected with the top plate in a clamped mode, and the other end of the supporting rod is connected with one side of the side frame in a clamped mode and used for supporting the top plate.

According to some embodiments of the present invention, the hanging device comprises a groove and a hanging bar; the groove is positioned on one side of the top plate; one end of the hanging rod is fixed on one side of the side frame, and the other end of the hanging rod is connected with the groove in a buckling mode.

According to some embodiments of the utility model discloses a collapsible storage rack still includes: a caster wheel; the casters are respectively positioned at the lower ends of the first side frame and the second side frame.

According to some embodiments of the utility model discloses a collapsible storage rack still includes: a screw; the screw rod is in threaded connection with the lower end of the guide rod and is used for supporting the shelf.

According to some embodiments of the utility model discloses a collapsible storage rack still includes: the third locking device is used for locking the side frame when the foldable storage rack is in a folded state; the third locking device comprises a third locking plate and a third limiting rod; and one end of the third locking plate and one end of the third limiting rod are respectively fixed on the first side frame and the second side frame, and the other end of the third locking plate is clamped and connected with the other end of the third limiting rod during locking.

According to the utility model discloses collapsible storing frame has following beneficial effect at least: during collapsible storing frame expansion state, can satisfy user's storing needs, when transportation or idle, the folding process is accomplished to collapsible storing frame's side frame, linking arm and shelf linkage, under the fold condition collapsible storing frame, shared space is little, is convenient for put, transports, in addition, expandes or folding in-process, need not dismouting spare part, is favorable to preventing that spare part from losing.

Drawings

The following is further described with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an embodiment of the present invention;

fig. 4 is a schematic view of a connection structure between the side frame and the connecting arm according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram associated with an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a locking device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

A first aspect of the present invention provides a collapsible storage shelf, comprising: side frame 100, connecting arm 200, and shelf 300. A side frame 100 including a first side frame 110 and a second side frame 120; the rear side surfaces of the first side frame 110 and the second side frame 120 are respectively provided with a guide groove 130; the guide groove 130 is a long strip extending in the vertical direction; the connecting arm 200 is positioned at the rear side of the foldable storage rack and comprises a first connecting arm 210 and a second connecting arm 220; one end of the first connecting arm 210 and one end of the second connecting arm 220 are respectively hinged with a sliding shaft 230; the first connecting arm 210 is connected with the second connecting arm 220 in an intersecting manner; the sliding shaft 230 is embedded in the guide slot 130 and slides along the guide slot 130, and when the sliding shaft 230 slides to both ends of the guide slot 130, the foldable storage rack is in an unfolded state or a folded state; the other end of the first connecting arm 210 is hinged to the second side frame 120; the other end of the second connecting arm 220 is hinged to the first side frame 110; when the foldable storage rack is in the unfolded state, the first side frame 110 and the second side frame 120 are respectively located at the left side and the right side of the foldable storage rack; when the foldable storage rack is in a folded state, the first side frame 110 and the second side frame 120 are close to each other; the shelf 300 comprises a left shelf 310 and a right shelf 320, wherein one end of the left shelf 310 is hinged with one end of the right shelf 320; the other end of the left shelf 310 is hinged to the first side frame 110, and the other end of the right shelf 320 is hinged to the second side frame 120; when the foldable storage rack is in an unfolded state, the left shelf 310 and the right shelf 320 are both positioned in a horizontal position; when the foldable storage rack is in a folded state, the left shelf 310 and the right shelf 320 rotate to be close to each other.

It can be understood that the shelf 300 is mainly used for placing articles, and therefore, when the foldable storage rack is in the unfolded state, the left shelf 310 and the right shelf 320 of the shelf 300 are both in the horizontal position, and a bearing surface for placing articles can be provided.

As shown in fig. 1, the collapsible storage shelf is in an expanded state; as shown in fig. 9, the collapsible storage shelf is in a collapsed state; as shown in fig. 2, the collapsible storage shelf is in a transitional state between the collapsed and expanded states. It can be understood that, in the above-mentioned embodiment, in the transition state between the unfolded state and the folded state of the foldable storage rack, the sliding shafts 230, which are respectively hinged at one end of the first connecting arm 210 and one end of the second connecting arm 220, slide in the guide grooves 130 of the side frames 100, and accordingly, due to the structures of the side frames 100, the connecting arms 200 and the shelves 300 and the connection relationship therebetween, the interrelated movements of the side frames 100, the connecting arms 200 and the shelves 300 are realized, and finally, the switching between the unfolded state and the folded state of the foldable storage rack is realized.

It is understood that the guide groove 130 may be integral with the side frame 100 or may be a component fixedly mounted on the side frame 100. Specifically, in the case where the guide groove 130 is integrated with the side frame 100, as shown in fig. 4, the guide groove 130 may be an elongated groove that is opened in the first side frame 110 and the second side frame 120 and extends in the vertical direction, or an elongated hollow structure that extends in the vertical direction may be provided in the first side frame 110 and the second side frame 120. The guide groove 130 is fixed to the side frame 100 as a component, as shown in fig. 1 and 2. It will be appreciated that the guide slots 130 shown in figures 1 and 2 are fixedly attached to the side frames 100 as part of the assembly, which advantageously reduces the thickness of the side frames and makes the collapsible storage shelf more lightweight.

It is understood that, in the above-mentioned embodiment, one end of the connecting arm 200 is slidably connected with one end of the side frame 100, and during the process that one end of the connecting arm 200 slides in the vertical direction relative to the side frame 100, one end of the connecting arm 200 can also rotate in the plane of the rear side of the foldable storage rack relative to the side frame 100, therefore, the specific structure that one end of the connecting arm 200 is slidably connected with one end of the side frame 100 can be easily imagined by those skilled in the art as the structure shown in fig. 5. As shown in fig. 5, the connecting arm 200 is hinged at one end to the movable end 231 of the slide rail with the fixed end 131 of the slide rail located on the side frame 100, and it is understood that both ends of the fixed end 131 of the slide rail in the vertical direction should have a limiting means for limiting the sliding of the movable end 231 of the slide rail in a certain range in the vertical direction. However, such a structure will increase the cost of manufacturing to some extent. It can be seen that the connection structure of the connection arm 200 and the side frame 100 according to the first aspect of the present invention is more preferable.

It is understood that the guide slot 130 may be at the upper portion of the first side frame 110 and the second side frame 120, and accordingly, the first connecting arm 210 and the second connecting arm 220 are hinged to the second side frame 120 and the first side frame 110, i.e., below the guide slot 130. In addition, as shown in fig. 3, the guide slot 130 may be at the lower portion of the first side frame 110 and the second side frame 120, and accordingly, the first connecting arm 210 and the second connecting arm 220 are hinged to the second side frame 120 and the first side frame 110, i.e., above the guide slot 130.

How the foldable storage shelf is unfolded and folded is described in detail with respect to the case that the guide groove 130 is formed at the upper portion of the first and

second side frames

110 and 120.

In some embodiments of the present invention, the guide groove 130 is respectively located at the upper portion of the first side frame 110 and the second side frame 120; when the sliding shaft 230 slides to the lower end of the guide groove 130, the foldable storage rack is in an unfolded state; when the sliding shaft 230 slides to the upper end of the guide slot 130, the foldable storage rack is in a folded state.

As shown in fig. 1, the collapsible storage shelf is in an expanded state; as shown in fig. 9, the collapsible storage shelf is in a collapsed state; as shown in fig. 2, the collapsible storage shelf is in a transitional state between the collapsed and expanded states. When the foldable storage rack is in the unfolded state, as shown in fig. 1, the sliding shaft 230 is located at the lower end of the guide slot 130; the first side frame 110 and the second side frame 120 are respectively positioned at the left side and the right side of the foldable storage rack; both the left shelf 310 and the right shelf 320 are in a horizontal position. When the sliding shaft 230 slides upwards from the lower end of the guide slot 130, as shown in fig. 2, the first side frame 110 and the second side frame 120 move close to each other in a translation manner under the driving of the first connecting arm 210 and the second connecting arm 220; the hinges of the left shelf 310 and the right shelf 320 with the first side frame 110 and the second side frame 120 are respectively driven by the first side frame 110 and the second side frame 120 to move close to each other, and the left shelf 310 and the right shelf 320 rotate along the hinges. It will be appreciated that the hinging action between the left shelf 310 and the right shelf 320 is such that the shelf 300 folds as the first side frame 110 and the second side frame 120 translate closer to each other. When the sliding shaft 230 slides upward from the lower end of the guide slot 130 to the upper end of the guide slot 130, as shown in fig. 9, the first side frame 110 and the second side frame 120 move closer to each other in a translational manner, and the left shelf 310 and the right shelf 320 rotate closer to each other.

Therefore, when the foldable storage rack is in an unfolded state, the storage requirements of users can be met, when the foldable storage rack is transported or left unused, the side frames 100, the connecting arms 200 and the shelves 300 of the foldable storage rack are linked to complete the folding process, and when the foldable storage rack is in a folded state, the occupied space is small, so that the foldable storage rack is convenient to place and transport, and in addition, in the unfolding or folding process, parts do not need to be disassembled and assembled, and the parts are favorably prevented from being lost.

In some embodiments of the present invention, the shelves 300 are provided in a plurality and are distributed along a vertical direction; the collapsible storage shelf further comprises: a guide bar 400; the guide bar 400 is located at the rear side of the foldable storage shelf and is coupled to the shelf 300. As shown in fig. 1 and 2, the shelves 300 are distributed along the vertical direction, and the foldable storage rack has a plurality of storage spaces; particularly, for the foldable storage rack with multi-layer storage spaces, the guide rod 400 connects the plurality of shelves 300 together, and the plurality of shelves 300 move uniformly in the folding or unfolding process rather than independently and irregularly, so that the foldable storage rack is more convenient and more durable in the use process.

In some embodiments of the present invention, the method further comprises: a first locking device 510 or a second locking device 520 for locking the connecting arm 200 when the foldable storage shelf is in the unfolded state; as shown in fig. 1, the first locking device 510 is located at the rear side of the foldable storage rack and comprises a first limiting rod 511, a first locking plate 512 and an adjusting member 513; one end of the first limiting rod 511 is fixed on the guide rod 400; one end of the adjusting member 513 and one end of the first locking piece 512 are hinged on the connecting arm 200; when the locking is performed, the other end of the first locking plate 512 is connected with the other end of the first limiting rod 511 in a clamping manner; the adjusting part 513 is used for adjusting the tightness of the clamping connection between the other end 512 of the first lock piece and the other end of the first limiting rod 511; as shown in fig. 6, the second locking device 520 is located at the rear side of the foldable storage rack and includes a second limiting rod 521 and a second locking plate 522; one end of the second locking piece 522 is hinged to the guide rod 400; one end of the second limiting rod 521 is fixed on the connecting arm 200; when the locking is performed, the other end of the second locking piece 522 is connected with the other end of the second limiting rod 521 in a clamping manner.

It will be appreciated that the first locking means 510 shown in fig. 1 and the second locking means 520 shown in fig. 6 are used for locking the connecting arm 200 when the foldable storage rack is in the unfolded state, so that the foldable storage rack can maintain the unfolded state, and in particular, the sliding shaft 230 is prevented from sliding upwards from the lower end of the guide slot 130 due to the object placement or the collision of people. It will be appreciated that when the slide shaft 230 is located at the lower end of the guide groove 130, the lower end of the guide groove 130 can prevent the slide shaft 230 from further sliding downwards, but at this time, the guide groove 130 cannot prevent the slide shaft 230 from sliding upwards from the lower end, and the first locking device 510 and the second locking device 520 respectively adopt different specific structures to lock the connecting arm 200, thereby preventing the slide shaft 230 from sliding upwards from the lower end. In particular, the number of components of the second locking device 520 is smaller than that of the first locking device 510, and the second locking device 520 is more advantageous to compactness of the arrangement.

In some embodiments of the present invention, as shown in fig. 1 and 7, the present invention further includes: a top plate 600; the top plate 600 is positioned at the upper end of the foldable storage rack; the top plate 600 is hinged or detachably snap-coupled to the side frame 100 at one side, and the top plate 600 can be turned upside down. The structure of the top plate 600 is beneficial for a user to select whether to use the top plate 600 according to the needs of the user, and if the top plate 600 is not used, as shown in fig. 7, the top plate 600 can be buckled and connected to one side of the side frame 100, so that the top plate 600 can be prevented from being lost due to random placement. It is understood that the top plate 600 may also be hinged with one side to the side of the side frame 100, and if the top plate 600 is not used, the top plate 600 may be turned over to the side of the side frame 100; in addition, one side of the top plate 600 may be detachably snap-connected to one side of the side frame 100 by a snap connection mechanism 630 as shown in fig. 1, and when the top plate 600 is used, the snap connection mechanism 630 may be used to lock the top plate 600, which is beneficial to prevent the shelf 300 from being folded due to external force; when the top plate 600 is not used, it is detachably snap-coupled to the side frame 100 side by the above-described snap coupling mechanism 630.

In some embodiments of the present invention, as shown in fig. 8, the present invention further comprises a support rod 610 and a suspension device 620; the top plate 600 is connected to one side of the side frame 100 by the suspension device 620; one end of the support rod 610 is fastened to the top plate 600, and the other end is fastened to one side of the side frame 100 to support the top plate 600. This is another way of arranging the top plate 600, and provides more choices for the user, and the user can choose whether to use the top plate 600 according to his/her needs, and if not to use the top plate 600, as shown in fig. 8, the top plate 600 can be connected to the side frames 100 through the support rods 610 and the hanging devices 620, and the top plate 600 can be prevented from being lost due to random placement.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, the present invention further includes: a caster 700; the casters 700 are respectively located at the lower ends of the first side frame 110 and the second side frame 120. The foldable storage rack is convenient to move.

In some embodiments of the present invention, as shown in fig. 7, the method further includes: a screw 410; the screw 410 is threadedly coupled to the lower end of the guide bar 400 to support the shelf 300. With or without casters 700, the bottom of the collapsible storage shelf may have different heights, and by rotating the screw 410, the shelf 300 may still be supported at the different heights.

In some embodiments of the present invention, as shown in fig. 9, the method further includes: a third locking device 140 for locking the side frame 100 when the foldable storage shelf is in a folded state; the third locking device 140 comprises a third locking piece 141 and a third limiting rod 142; one end of the third locking plate 141 and one end of the third limiting rod 142 are respectively fixed on the first side frame 110 and the second side frame 120, and when the locking plate is locked, the other end of the third locking plate 141 is connected with the other end of the third limiting rod 142 in a clamping manner. It is understood that the specific installation position of the third locking device 140 may be on the upper, lower, front, and rear sides of the first side frame 110 and the second side frame 120. The third locking device 140 is advantageous to ensure that the foldable storage rack is in a folded state during transportation and placement.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A collapsible storage shelf, comprising:

a side frame (100) including a first side frame (110) and a second side frame (120); guide grooves (130) are respectively formed in the rear side surfaces of the first side frame (110) and the second side frame (120); the guide groove (130) is a long strip extending along the vertical direction;

the connecting arm (200) is positioned at the rear side of the foldable storage rack and comprises a first connecting arm (210) and a second connecting arm (220); one end of the first connecting arm (210) and one end of the second connecting arm (220) are respectively hinged with a sliding shaft (230); the first connecting arm (210) is connected with the second connecting arm (220) in an intersecting manner; the sliding shaft (230) is embedded in the guide groove (130) and slides along the guide groove (130), and when the sliding shaft (230) slides to the two ends of the guide groove (130), the foldable storage rack is in an unfolded state or a folded state; the other end of the first connecting arm (210) is hinged with the second side frame (120); the other end of the second connecting arm (220) is hinged with the first side frame (110); when the foldable storage rack is in an unfolded state, the first side frame (110) and the second side frame (120) are respectively positioned at the left side and the right side of the foldable storage rack; when the foldable storage rack is in a folded state, the first side frame (110) and the second side frame (120) are close to each other;

the shelf (300) comprises a left shelf (310) and a right shelf (320), wherein one end of the left shelf (310) is hinged with one end of the right shelf (320); the other end of the left shelf (310) is hinged with the first side frame (110), and the other end of the right shelf (320) is hinged with the second side frame (120); when the foldable storage rack is in an unfolded state, the left shelf (310) and the right shelf (320) are both positioned in a horizontal position; when the foldable storage rack is in a folded state, the left shelf (310) and the right shelf (320) rotate to be close to each other.

2. The foldable storage shelf of claim 1 wherein said guide slots (130) are located in an upper portion of said first side frame (110) and said second side frame (120), respectively;

when the sliding shaft (230) slides to the lower end of the guide groove (130), the foldable storage rack is in an unfolded state; when the sliding shaft (230) slides to the upper end of the guide groove (130), the foldable storage rack is in a folded state.

3. The collapsible storage shelf of claim 2 wherein said shelves (300) are vertically spaced; the collapsible storage shelf further comprises: a guide rod (400);

the guide bar (400) is positioned at the rear side of the foldable storage shelf and connected with the shelf (300).

4. The foldable storage shelf of claim 3 further comprising: a first locking device (510) or a second locking device (520) for locking the connecting arm (200) when the foldable storage shelf is in the unfolded state;

the first locking device (510) is positioned at the rear side of the foldable storage rack and comprises a first limiting rod (511), a first locking plate (512) and an adjusting piece (513); one end of the first limiting rod (511) is fixed on the guide rod (400); one end of the adjusting piece (513) and one end of the first locking piece (512) are hinged on the connecting arm (200); when the locking mechanism is locked, the other end of the first locking plate (512) is clamped and connected with the other end of the first limiting rod (511); the adjusting piece (513) is used for adjusting the tightness of the clamping connection between the other end of the first locking piece (512) and the other end of the first limiting rod (511);

the second locking device (520) is positioned at the rear side of the foldable storage rack and comprises a second limiting rod (521) and a second locking plate (522); one end of the second locking piece (522) is hinged on the guide rod (400); one end of the second limiting rod (521) is fixed on the connecting arm (200); when the locking mechanism is used for locking, the other end of the second locking plate (522) is connected with the other end of the second limiting rod (521) in a clamping mode.

5. The foldable storage shelf of claim 1 further comprising: a top plate (600);

the top plate (600) is positioned at the upper end of the foldable storage rack; one side of the top plate (600) is hinged or detachably buckled with one side of the side frame (100), and the top plate (600) can be turned upside down.

6. The foldable storage shelf of claim 5 further comprising a support bar (610) and a suspension means (620);

the top plate (600) is connected to one side of the side frame (100) through the suspension device (620); one end of the supporting rod (610) is connected with the top plate (600) in a clamped mode, and the other end of the supporting rod is connected with one side of the side frame (100) in a clamped mode and used for supporting the top plate (600).

7. The foldable storage shelf of claim 6 wherein said suspension means (620) comprises a recess (621) and a peg (622);

the groove (621) is positioned on one side of the top plate (600); one end of the hanging rod (622) is fixed on one side of the side frame (100), and the other end of the hanging rod is connected with the groove (621) in a buckling mode.

8. The foldable storage shelf of claim 1 further comprising: a caster (700);

the caster wheels (700) are respectively arranged at the lower ends of the first side frame (110) and the second side frame (120).

9. The foldable storage shelf of claim 3 further comprising: a screw (410);

the screw (410) is screw-coupled to the lower end of the guide bar (400) for supporting the shelf (300).

10. The foldable storage shelf of claim 1 further comprising: a third locking device (140) for locking the side frame (100) when the foldable storage shelf is in a folded state;

the third locking device (140) comprises a third locking piece (141) and a third limiting rod (142); and one end of the third locking plate (141) and one end of the third limiting rod (142) are respectively fixed on the first side frame (110) and the second side frame (120), and during locking, the other end of the third locking plate (141) is connected with the other end of the third limiting rod (142) in a clamping manner.