Push cart and storage rack
The push car's storage rack, with a movable rod and torsion spring, addresses folding challenges by enabling convenient folding and unfolding, improving storage and use practicality.
Patent Information
- Application Number
- DE202025101076
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-02-29
- Filing Date
- 2025-02-28
- Publication Date
- 2025-07-10
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing push cars with large storage racks face challenges in folding due to complex structures, poor stability, and the inability to automatically fold, making them impractical for storage and use.
A storage rack for a push car featuring a movable rod pivotally connected to a link base, with deployment and folding stops, and a torsion spring for automatic deployment, allowing convenient folding and unfolding.
The storage rack can be easily folded and unfolded, reducing the push car's volume after folding, enhancing storage convenience and stability.
Smart Images

Figure 00000000_0000_ABST
Abstract
Description
TECHNICAL FIELDThe present disclosure relates to a push car and, more particularly, to a storage rack of a push car.BACKGROUNDNowadays, some push cars have racks for storing items, and the larger the space, the more items can be carried and stored. However, too large a size of storage rack is not conducive to folding a push car and increases the volume of the push car after folding, which is not practical to store and support the entire push car. Although the storage rack is provided with a folding mechanism in the related art, the storage rack has a complex structure, a poor storage stability, and particularly cannot realize automatic folding and folding, making the use impractical.ABORTThe present disclosure aims to provide a push cart and a storage rack in which the storage rack can be folded and unfolded conveniently.According to an aspect of the present disclosure, there is provided a storage rack for a push car, comprising: a support rod connected to a lower part of a frame of the push car; a link base disposed on the support rod; and a movable rod pivotally connected to the link base and pivotable between an deployed position and a deployed position.In an embodiment, the connection base is provided with a deployment stop for defining the deployed position of the movable rod, and the deployment stop is configured to abut the movable rod to limit the movable rod to the deployed position.In one embodiment, the movable rod is provided with an abutment portion, and the abutment portion and the folding stopper are both arranged in a planar manner, so that the abutment portion abuts the folding stopper in a planar contact manner when the movable rod is in the folded-out position.In an embodiment, the connection base is provided with a folding stopper for defining the folded position of the movable rod, and the folding stopper is configured to abut on the movable rod to limit the movable rod to the folded position.In one embodiment, the movable rod includes a removable extension portion and the movable rod is pivotally connected to the connection base via the extension portion.In an embodiment, a torsion spring is provided between the movable rod and the link base to drive the movable rod to pivot toward the deployed position.In an embodiment, the support rod includes a straight front support rod portion, a straight rear support rod portion, and an intermediate curved portion between the front support rod portion and the rear support rod portion, wherein the connection base is disposed on the intermediate curved portion.In an embodiment, the connection base is provided with a groove and the intermediate curved portion is engaged with the groove or the connection base is made in a structure of a sleeve fitted over the intermediate curved portion.In an embodiment, when the movable rod is in the deployed position, the movable rod and the front support rod portion are arranged parallel to each other.In an embodiment, the connection base is provided with a pop-up stopper, the movable rod is provided with an abutting portion, and the pop-up stopper and the abutting portion are both arranged in a planar manner, so that when the movable rod is in the unfolded position, the abutting portion abuts on the pop-up stopper in a sheet contact manner, the pop-up stopper is perpendicular to an extending direction of the front support rod portion, and the abutting portion is perpendicular to an extending direction of the movable rod.In an embodiment, the movable rod and the rear support rod portion are parallel to each other and stacked one above the other when the movable rod is in the folded position.According to another aspect of the present disclosure, there is provided a push car including the above storage rack.According to still another aspect of the present disclosure, there is provided a push cart including a frame and a movable rod, wherein the frame is switched between a deployed state and a collapsed state, an upper part of the frame is provided with a pressing portion, the movable rod is pivotally connected to a lower part of the frame, and is pivotable between a deployed position and a collapsed position. When the frame is in the deployed state, the movable rod is in the deployed position and extends to the outside of the frame, and in a switching process of the frame from the deployed state to the collapsed state, the upper part of the frame pivots downward toward the movable rod to allow the pressing portion to drive the movable rod to pivot toward the collapsed position.In an embodiment, the push car further comprises a support rod connected to the lower part of the frame, and the movable rod is pivotally connected to the support rod.In one embodiment, the bottom of the frame includes a front leg and a rear leg; and the support bar includes a front support bar portion pivotally connected to the front leg, a rear support bar portion pivotally connected to the rear leg, and an intermediate curved portion between the front support bar portion and the rear support bar portion, wherein the movable bar is pivotally connected to the intermediate curved portion.In one embodiment, the front support bar portion is pivotally connected to the front leg at a first pivot point and the rear support bar portion is pivotally connected to the rear leg at a second pivot point, and the first pivot point is higher than the second pivot point.In an embodiment, the push car further comprises a link base disposed on the intermediate curved portion, and the movable rod is pivotally connected to the link base.In an embodiment, the connection base is provided with a groove and the intermediate curved portion is engaged with the groove or the connection base is made in a structure of a sleeve fitted over the intermediate curved portion.In an embodiment, the connection base is provided with a folding stopper for defining the folded-out position of the movable rod; the movable rod is provided with an abutting portion; and the abutting portion and the folding stopper are both arranged in a planar manner, so that when the movable rod is in the folded-out position, the abutting portion abuts the folding stopper in a planar contact manner to restrict the movable rod to the folded-out position.In an embodiment, a torsion spring is provided between the movable rod and the link base to drive the movable rod to pivot toward the deployed position.In an embodiment, the upper part of the frame comprises a handlebar, and the pressing portion comprises a food tray arranged on the handlebar or a backrest tube for a seat.In an embodiment, the push car further includes a connecting rod connected to an end of the movable rod far from the frame and crossed with the extending direction of the movable rod, and the upper part of the frame pivots downward toward the connecting rod so that the pressing portion presses the connecting rod, thereby driving the movable rod to pivot toward the folded position.In one embodiment, the upper part of the frame pivots downward toward the movable rod such that the pressing portion presses an end of the movable rod far away from the frame, thereby driving the movable rod to pivot toward the folded position.In one embodiment, the movable rod is configured such that when the frame is in the deployed state, the movable rod can pivot to the deployed position.The advantageous effects of the present disclosure are that the storage rack according to the present disclosure can be folded and unfolded conveniently.The above and other objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of the present disclosure when taken in conjunction with the accompanying drawings.BRIEF DESCRIPTION OF THE DRAWINGSThe accompanying drawings are included herein to provide a further understanding of the present disclosure, and are incorporated in and form a part of this specification. The drawings illustrate embodiments of the present disclosure and, together with the following description, serve to explain principles of the present disclosure.In the drawings, there are shown: FIG. 1 is a perspective view of a push car including a storage rack according to an embodiment of the present disclosure, in a deployed state of a frame. FIG. 2 is a side view of the push car shown in FIG. 1. FIG. 3 is a perspective view of a push car including a storage rack according to an embodiment of the present disclosure in a folded state of a frame. FIG. 4 is a side view of the push car shown in FIG. 3. FIG. 5 is a schematic view of some elements of the push car shown in FIG. 1, with a movable rod in an extended position. FIG. 6 is a schematic view of some elements of the push car shown in FIG. 1, with a movable rod in a folded position. FIG. 7 is an exploded perspective view of a storage rack according to an embodiment of the present disclosure. FIG. 8 is an exploded perspective view of a storage rack according to an embodiment of the present disclosure from another angle.Reference numerals denote reference numerals1 Frame 10 Handlebar 20 Front leg 30 Rear leg 100 Movable rod 110 Extension portion 111 Abutment portion 112 Second elongated hole 120 Torsion spring 121 First end 122 Second end 200 Pressing portion 201 Food tray 202 Backrest tube 300 Connection base 311 Folding stopper 312 Folding stopper 320 Pivoting space 330 Groove 340 First elongated hole 400 Support rod 410 Front support rod portion 420 Rear support rod portion 430 Intermediate curved portion 500 Connection rod X 1 First pivot point X 2 Second pivot pointDETAILED DESCRIPTIONHereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. Although the present disclosure is susceptible to various modifications and alternatives, specific embodiments are illustrated by way of example in the accompanying drawings. However, the present disclosure should not be construed as limited to the embodiments set forth herein, but rather the present disclosure covers all modifications, equivalents, and alternatives falling within the spirit and scope of the embodiments.The present disclosure will be described in detail below with reference to the accompanying drawings.FIGS. 1-4 illustrate a frame 1 of a push car that includes a storage rack in accordance with the present disclosure. The frame 1 includes: a handlebar 10 located at an upper part of the frame to allow a user to drive the push car; and a front leg 20 and a rear leg 30, both located at a lower part of the frame. The front leg 20 may be connected to a front wheel and the rear leg 30 may be connected to a rear wheel to allow the push cart to move. When the frame 1 is in a deployed state, an angle is formed between the front leg 20 and the rear leg 30; when the frame 1 is in a collapsed state, the front leg 20 and the rear leg 30 move toward each other, so that the angle between the front leg 20 and the rear leg 30 for collapsing is reduced.Note that the push car shown in the drawings is a baby carriage, but the present disclosure is not limited thereto. The push cart according to the present disclosure may be used to carry a person, animal, or object including, but not limited to, a baby stroller, an aged walking aid, a shopping cart, a pet cart, and the like. In addition, the frame 1 may take other forms; for example, the lower part of the frame 1 may be provided with a chassis having wheels instead of the front leg 20 and the rear leg 30.For the user's convenience, the lower part of the frame 1 may be provided with the storage rack, and a storage basket for storing objects may be formed by attaching a cloth or storage net (not shown) to the storage rack and an associated part of the frame 1. When the frame 1 is in the deployed state, an upper end of the fabric or the storage net is connected to the storage rack, and a lower end of the fabric or the storage net is connected to the frame 1.Since the frame 1 is generally a left-right symmetrical structure, the storage rack disposed on the frame 1 is also a left-right symmetrical structure. Here, for convenience of description, only the structure of one side of the frame 1 together with the storage rack will be discussed in detail, for example.FIGS. 1-8 illustrate an embodiment of the storage rack according to the present disclosure, including a movable rod 100, a link base 300, and a support rod 400.In this embodiment, the movable rod 100 and the support rod 400 form a storage rack main body and define a storage rack size and a maximum accommodation space thereof when the frame 1 is in the deployed state. At this time, the movable rod 100 and at least a part of the support rod 400 are arranged in a substantially horizontal manner.The movable rod 100 shown in FIGS. 1-8 is a straight rod.The support rod 400 is connected to the lower part of the frame 1. For example, one end of the support rod 400 may be pivotally connected to the front leg 20 at a first pivot point X 1, and the other end thereof may be pivotally connected to the rear leg 30 at a second pivot point X 2. In an embodiment, two ends of the support rod 400 are at different heights; For example, one end pivotally connected to the front leg 20 is higher than the other end pivotally connected to the rear leg 30, i.e., the first pivot point X 1 is higher than the second pivot point X 2, so that when the frame 1 is folded, the support rod 400 originally at least partially disposed substantially horizontally between the front leg 20 and the rear leg 30 can also rotate in a relatively large area relative to the front leg 20 and the rear leg 30, and therefore the support rod 400 is in a state of greater inclination angle after the frame 1 is folded, thereby decreasing the angle between the front leg 20 and the rear leg 30 after the folding and decreasing the volume of the frame 1 after the folding.Of course, the support bar 400 may be connected to only one of the front leg 20 and the rear leg 30, or to other lower members of the frame 1.However, it should be understood that in another embodiment, the storage rack may not be provided with the support rod 400, and the main body of the storage rack may be formed by the movable rod 100 and the corresponding part of the frame 1. That is, the storage basket for storing objects may be formed by attaching the cloth or storage net (not shown) to the movable rod 100 and the associated part of the frame 1. In this embodiment, the movable rod 100 may be directly pivotally connected to the lower part of the frame 1, for example, to the rear leg 30 of the frame 1.The movable rod 100 may be directly or indirectly connected to the support rod 400 and may pivot between a deployed position and a deployed position such that the minimum angle between the movable rod 100 and the support rod 400 is greater in the deployed position than in the deployed position.The movable rod 100 may form a variable extension part of the storage rack. When the user unfolds the push car, the movable rod 100 can swing to the unfolded position, thereby increasing the size of the storage rack and the maximum accommodation space thereof, and at this time, the movable rod 100 is arranged substantially horizontally. When the user collapses the push car, the movable rod 100 may pivot to the collapsed position, thereby reducing the size of the storage rack, which assists in collapsing the push car, does not increase the volume of the push car after collapsed, and facilitates storing and supporting the entire push car.In addition, in a case where the push car is not folded, when the user wants to take an object out of the storage basket, the movable rod 100 may be pivoted to the folded position, and at this time, the movable rod 100 and the rear leg 30 are substantially parallel to each other (as shown in FIG. 6 ), so that the user may conveniently bend downward and take the object in the storage basket from behind the rear leg 30 and directly toward the front leg 20. As compared with a situation where the movable bar 100 is arranged substantially horizontally as shown in FIG. 5 (the user needs to raise his hand high enough to grasp over the substantially horizontally arranged movable bar 100 to take the object from the top of the basket toward the bottom of the basket), the user does not need to raise his hand high enough to take the object out of the basket, which is more convenient.In order to further increase the size and the maximum accommodation space of the storage rack, the movable rod 100 may extend to the outside of the frame 1.In the embodiment shown in FIGS. 1-8, the movable rod 100 is connected to the support rod 400 via the connection base 300.The connection base 300 may be disposed on the support rod 400 by a common fastener such as a screw or a rivet, so that the connection base 300 is immovable with respect to the support rod 400. The movable rod 100 is pivotally connected to the link base 300.In an embodiment, the connection base 300 may be provided with a groove 330 (see FIG. 7 ) and a part of the support rod 400 may be engaged with the groove 330 to firmly fix the connection base 300 to the support rod 400.In another embodiment, the connection base 300 may be formed in a structure of a sleeve fitted over the support rod 400. For example, the connection base 300 may be configured in a structure of a sleeve fitted over the intermediate curved portion 430 (described later) of the support rod 400.In order to allow the movable rod 100 to move within an appropriate swing angle, as shown in FIGS. 7 and 8, the connection base 300 may be provided with a folding stopper 311 capable of setting the folded-out position of the movable rod 100 and a folding stopper 312 capable of setting the folded-in position of the movable rod 100. Thus, a pivot space 320 is formed between the folding stopper 311 and the folding stopper 312 to allow a pivot end of the movable rod 100 to move therein.The movable rod 100 may abut the deployment stopper 311 on the connection base 300 to limit the movable rod 100 to the deployed position.The movable rod 100 may abut the folding stopper 312 on the link base 300 to limit the movable rod 100 to the folded position.In an embodiment shown in FIGS. 5 to 8, the movable rod 100 may be provided with an abutting portion 111; the abutting portion 111 and the folding stopper 311 are both arranged in a planar manner; and when the movable rod 100 is in the folded-out position, the abutting portion 111 abuts on the folding stopper 311 in a sheet contact manner, so that the movable rod 100 can be stably held in the folded-out position.As shown in FIGS. 6 and 7, the pop-up stopper 311 may be perpendicular to an extending direction of a front support rod portion 410 (described later), and the abutting portion 111 may be perpendicular to the extending direction of the movable rod 100.However, the present disclosure is not limited thereto.In an embodiment, the connection base 300 may not be provided with the folding stopper 312. For example, a folding movement of the movable rod 100 may be configured to be blocked by the support rod 400 (as shown in FIG. 6 ). As another example, the movable rod 100 may be provided with a protruding structure protruding along a lateral direction of the frame 1, and when the movable rod 100 is folded to a certain position, the protruding structure may be locked in position by the rear leg 30.In another embodiment, the storage rack may not be provided with the connection base 300. The movable rod 100 is directly pivotally connected to the support rod 400. Moreover, the support rod 400 may be provided with the folding stopper 311 capable of setting the folded-out position of the movable rod 100 and / or the folding stopper 312 capable of setting the folded-in position of the movable rod 100.In addition, as shown in FIGS. 7 and 8, the movable rod 100 may include a detachable extension portion 110, and the movable rod 100 is pivotally connected to the connection base 300 via the extension portion 110. The relatively long extension portion 110 may allow the movable rod 100 to further extend to the outside of the frame 1, thereby further increasing the size and the maximum storage space of the storage rack.The removable extension portion 110 allows the extension portion 110 to be exchanged, so that the user can change the size and the maximum accommodation space of the storage rack by exchanging extension portions 110 having different sizes.In another embodiment, the remaining part of the movable rod 100 connected to the extension portion 110 may be replaced to make it easier for the user to change the size and the maximum accommodation space of the storage rack by replacing the remaining part of the movable rod 100 having different sizes and connected to the extension portion 110.In the embodiment in which the movable rod 100 includes the detachable extension portion 110, the abutment portion 111 may be formed on the extension portion 110.The extension portion 110 may be detachably connected to the main body (i.e., the rest of the aforementioned movable rod 100) of the movable rod 100 in various ways such as a screw connection or a sleeve connection.In an embodiment shown in FIGS. 7 and 8, in order to cause the movable rod 100 to automatically pivot toward the deployed position, a torsion spring 120 capable of driving the movable rod 100 to pivot toward the deployed position may be provided between the movable rod 100 and the connection base 300. A first end 121 of the torsion spring 120 is inserted into a first elongated hole 340 in the connection base 300 and a second end 122 of the torsion spring 120 is inserted into a second elongated hole 112 in the extension portion 110.It should be understood that in an embodiment in which the movable rod 100 is not provided with the extension portion 110, the main body of the movable rod 100 may be provided with the second elongated hole 112 to allow the second end 122 of the torsion spring 120 to be placed therein.When the user desires the movable rod 100 to pivot toward the folded position, a force needs to be applied to the movable rod 100, causing inconveniences in a process of folding the frame 1.For the user's convenience, as shown in FIGS. 1-4, the upper part of the frame 1 of the push cart according to the present disclosure is provided with a pressing portion 200, and in the process of collapsing the frame 1, the upper part of the frame 1 pivots downward toward the movable rod 100, so that the pressing portion 200 can drive the movable rod 100 to pivot toward the collapsed position (see FIGS. 3 and 4 ). As a result, the folding of the frame 1 will cause the movable rod 100 to fold in simultaneously without the user having to separately operate the movable rod 100.It should be understood that when the frame 1 is folded, the pressing portion 200 easily drives the movable rod 100 to pivot to an appropriate position without driving the movable rod 100 to pivot to the folded position. For example, the pressing portion 200 presses an end of the movable rod 100 far from the frame 1, thereby driving the movable rod 100 to swing toward the folded position.In an embodiment shown in FIGS. 1-4, the upper part of the frame 1 comprises a handlebar 10, and the pressing portion 200 comprises a food tray 201 arranged on the handlebar 10, such that when the frame 1 is folded, the food tray 201 presses the movable bar 100.In another embodiment, the pressing portion 200 may include a backrest tube 202 for a seat such that when the frame 1 is folded, the backrest tube 202 presses the movable rod 100.In the storage rack embodiment shown in FIGS. 1-8, the storage rack further includes a connecting rod 500 connecting two movable rods 100 on the left and right sides. The connecting rod 500 is connected to an end of two movable rods 100 far from the frame 1. The extending direction of the connecting rod 500 and the extending direction of the movable rod 100 cross each other. Alternatively, the extending direction of the connecting rod 500 and the extending direction of the movable rod 100 are perpendicular to each other.The pressing portion 200 may also indirectly drive the movable rod 100 to pivot by pressing the connecting rod 500 toward the folded position. In the embodiment in which the pressing portion 200 includes a food tray 201 disposed on the handlebar 10, the extending direction of the connecting rod 500 is substantially the same as that of the food tray 201.In order to make it easier for the pressing portion 200 to contact the movable rod 100 and / or the connecting rod 500 and drive the movable rod 100, the movable rod 100 should protrude more toward the outside of the frame 1 when the frame 1 is in the deployed state. However, considering the aesthetic and easy use of the push car, the degree to which the movable rod 100 protrudes to the outside of the frame 1 is limited. For this reason, the present disclosure provides a specially configured support rod 400.As shown in FIGS. 5-8, the support bar 400 may include a front support bar portion 410 pivotally connected to the front leg 20, a rear support bar portion 420 pivotally connected to the rear leg 30, and an intermediate curved portion 430 located between the front support bar portion 410 and the rear support bar portion 420 such that an angle is formed between the front support bar portion 410 and the rear support bar portion 420. Specifically, the front support bar portion 410 is pivotally connected to the front leg 20 at the first pivot point X 1, and the rear support bar portion 420 is pivotally connected to the rear leg 30 at the second pivot point X 2.In an embodiment shown in FIGS. 5-8, at least a portion of the front support bar portion 410 and at least a portion of the rear support bar portion 420 are straight, making the frame 1 narrower and narrower.However, in other embodiments, at least one of the front support bar portion 410 and the rear support bar portion 420 may be curved.The movable rod 100 may be directly or indirectly pivotally connected to the intermediate curved portion 430.In the embodiment shown in FIGS. 7 and 8, the link base 300 is disposed at the intermediate curved portion 430, and the movable rod 100 is pivotally connected to the link base 300 such that the movable rod 100 is indirectly pivotally connected to the intermediate curved portion 430 via the link base 300.As shown in FIGS. 1-2 and 5-6, when the frame 1 is in the deployed state, the front support bar portion 410 is located between the front leg 20 and the rear leg 30 and is disposed substantially horizontally, while the rear support bar portion 420 changes its extension direction by the intermediate curved portion 430, so that the rear support bar portion 420 can extend substantially parallel to the rear leg 30 and the frame 1 is more aesthetically pleasing in the deployed state.As shown in FIG. 5, when the frame 1 is in the deployed state and the movable rod 100 is in the deployed position, the movable rod 100 and the front support rod portion 410 are substantially parallel to each other and are disposed substantially horizontally. At this time, the movable rod 100 and the front support rod portion 410 collectively define the size of the storage rack and the maximum accommodation space thereof. In one embodiment, the movable rod 100 and the front support rod portion 410 may be aligned in a straight line such that the movable rod 100 is cleaner and more nice.As shown in FIG. 6, when the frame 1 is in the deployed state and the movable rod 100 is in the deployed position, the movable rod 100 and the rear support rod portion 420 are substantially parallel to and stacked on each other. At this time, the movable rod 100 is also substantially parallel to the rear leg 30, making it convenient for the user to bend downward and take the item in the storage basket from behind the rear leg 30 and directly toward the front leg 20.As shown in FIGS. 3 and 4, during the folding process of the frame 1, the front leg 20 and the rear leg 30 approach each other so that the rear support rod portion 420 is offset with respect to the rear leg 30 and protrudes to the outside of the frame 1, while the curved intermediate portion 430 connected thereto also protrudes to the outside of the frame 1, causing the movable rod 100 pivotally connected to the curved intermediate portion 430 to protrude more to the outside of the frame 1. Therefore, the pressing portion 200 will more easily contact the movable rod 100 and / or the connecting rod 500 and drive the movable rod 100 when the upper part of the frame 1 pivots downward toward the movable rod 100.The above embodiments and advantages are merely exemplary and are not to be considered limitations of the present disclosure. The description herein is intended to illustrate and not limit the scope of the claims. The features, structures, methods, and other characteristics of the example embodiments described herein may be combined in a variety of ways, resulting in other and / or alternative example embodiments.
Claims
A storage rack for a push car, comprising: a support rod connected to a lower part of a frame of the push car; a connection base disposed on the support rod; and a movable rod pivotally connected to the connection base and pivotable between an deployed position and a deployed position.The storage rack according to claim 1, wherein the connection base is provided with a deployment stopper for defining the deployed position of the movable rod, and the deployment stopper is configured to abut on the movable rod to limit the movable rod to the deployed position.The storage rack according to claim 2, wherein the movable rod is provided with an abutting portion, and the abutting portion and the folding stopper are both arranged in a planar manner such that the abutting portion abuts the folding stopper in a planar contact manner when the movable rod is in the folded-out position.The storage rack according to any one of claims 1 to 3, wherein the connection base is provided with a folding stopper capable of fixing the folded position of the movable rod, and the folding stopper is configured to abut on the movable rod to limit the movable rod to the folded position.The storage rack according to any one of claims 1 to 3, wherein the movable rod comprises a detachable extension portion, and the movable rod is pivotally connected to the connection base via the extension portion.The storage rack according to any one of claims 1 to 3, wherein a torsion spring is provided between the movable rod and the connection base to drive the movable rod to pivot toward the deployed position.The storage rack of claim 1, wherein the support rod comprises a straight front support rod portion, a straight rear support rod portion, and an intermediate curved portion between the front support rod portion and the rear support rod portion, wherein the connection base is disposed on the intermediate curved portion.The storage rack according to claim 7, wherein the connection base is provided with a groove and the intermediate curved portion is engaged with the groove, or the connection base is formed in a structure of a sleeve fitted over the intermediate curved portion.The storage rack of claim 7, wherein when the movable rod is in the deployed position, the movable rod and the front support rod portion are disposed parallel to each other.The storage rack according to claim 9, wherein the connection base is provided with a pop-up stopper, the movable rod is provided with an abutting portion, and the pop-up stopper and the abutting portion are both arranged in a planar manner, so that when the movable rod is in the unfolded position, the abutting portion abuts on the pop-up stopper in a sheet contact manner, the pop-up stopper is perpendicular to an extending direction of the front support rod portion, and the abutting portion is perpendicular to an extending direction of the movable rod.The storage rack of claim 7, wherein the movable rod and the rear support rod portion are parallel to each other and stacked one above the other when the movable rod is in the folded position.Push car comprising the storage rack according to any one of claims 1 to 11.A push cart comprising a frame and a movable rod, wherein the frame is switched between an unfolded state and a folded state, an upper part of the frame is provided with a pressing portion, the movable rod is pivotally connected to a lower part of the frame and is pivotable between an unfolded position and a folded position, wherein when the frame is in the unfolded state, the movable rod is in the unfolded position and extends to the outside of the frame, and in a switching process of the frame from the unfolded state to the folded state, the upper part of the frame pivots downward toward the movable rod to allow the pressing portion to drive the movable rod to pivot toward the folded position.The push car of claim 13, wherein the push car further comprises a support rod connected to the lower part of the frame, and the movable rod is pivotally connected to the support rod.The push cart of claim 14, wherein the bottom of the frame comprises a front leg and a rear leg; and the support bar comprises a front support bar portion pivotally connected to the front leg, a rear support bar portion pivotally connected to the rear leg, and an intermediate curved portion between the front support bar portion and the rear support bar portion, the movable bar being pivotally connected to the intermediate curved portion.The push cart of claim 15, wherein the front support bar portion is pivotally connected to the front leg at a first pivot point, and the rear support bar portion is pivotally connected to the rear leg at a second pivot point, and the first pivot point is higher than the second pivot point.The push car of claim 15, wherein the push car further comprises a link base disposed on the intermediate curved portion, and the movable rod is pivotally connected to the link base.The push car according to claim 17, wherein the connection base is provided with a groove and the intermediate curved portion is engaged with the groove, or the connection base is formed in a structure of a sleeve fitted over the intermediate curved portion.The push car according to claim 17, wherein the connection base is provided with a folding stopper for defining the folded-out position of the movable rod; the movable rod is provided with an abutting portion; and the abutting portion and the folding stopper are both arranged in a planar manner, so that when the movable rod is in the folded-out position, the abutting portion abuts on the folding stopper in a sheet contact manner to restrict the movable rod to the folded-out position.The push carriage according to any one of claims 17 to 19, wherein a torsion spring is provided between the movable rod and the connection base to drive the movable rod to pivot toward the deployed position.The push cart of any of claims 13 to 19, wherein the upper part of the frame comprises a handlebar, and the pressing portion comprises a food tray disposed on the handlebar or a backrest tube for a seat.The push car according to any one of claims 13 to 19, wherein the push car further comprises a connecting rod connected to an end of the movable rod far from the frame and crossed with the extending direction of the movable rod, and the upper part of the frame pivots downward toward the connecting rod so that the pressing portion presses the connecting rod, thereby driving the movable rod to pivot toward the folded position.The push car according to any one of claims 13 to 19, wherein the upper part of the frame pivots downward toward the movable rod so that the pushing portion pushes an end of the movable rod far from the frame, thereby driving the movable rod to pivot toward the folded position.The push cart according to any one of claims 13 to 19, wherein the movable rod is configured such that when the frame is in the deployed state, the movable rod can pivot to the deployed position.