Folding storage basket of battery car and battery car

Abstract

The utility model provides a folding storage basket of a battery car, which is characterized in that two upright posts are arranged on two sides of the tail of the battery car, a mounting frame is fixed between the two upright posts, and a storage basket is mounted on the mounting frame; the storage basket comprises a folding assembly, a supporting pull rope and a slow descending device. A storage space is formed after the folding assembly is unfolded; the mounting frame comprises mounting plates on the two sides and a cross beam connected with the mounting plates on the two sides; the folding assembly comprises a first folding bottom plate rotationally connected with the mounting plates on the two sides. A supporting pull rope is arranged on at least one side of the first folding bottom plate; a slow descending device is arranged on at least one side of the first folding bottom plate; the folding assembly is released, the first folding bottom plate is turned over downwards, and the slow descending device slows down the turning-down speed of the first folding bottom plate; by arranging the slow descending device, when the folding assembly is released, the downward turning speed of the first folding bottom plate can be slowed down, and the situation that the first folding bottom plate is instantaneously turned downwards, and consequently a steel wire is instantaneously tightened and a bottom plate hinge connecting structure is damaged is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a storage basket of a battery car, especially relates to a folding storage basket of a battery car and a battery car. BACKGROUND

[0002] The battery car is mainly applied to carrying personnel and articles such as backpacks in the back field, and generally includes golf carts, sightseeing cars, shared battery cars and passenger battery cars. In order to facilitate storage, a storage basket and a backpack placing rack are arranged on the back seat of the battery car.

[0003] At present, the storage baskets on the market are mostly designed in a foldable manner. This design includes a bottom plate basket, which can realize expansion and contraction of space through a hinged connection. This design allows the storage basket to be folded when not in use, reducing the occupied space, and can be unfolded to increase the storage space when needed. However, this structure relies on the steel wire on the side of the bottom plate basket to fix the bottom plate basket when the bottom plate basket is turned over. When the bottom plate basket suddenly falls down, it is easy to cause damage to the steel wire due to its instantaneous tensioning and damage to the bottom plate hinge connection structure. SUMMARY

[0004] The utility model aims at solving the problem of no buffer when unfolding the storage basket, which can easily cause damage to the steel wire due to its instantaneous tensioning. Therefore, a folding storage basket of a battery car is provided.

[0005] To solve the above technical problems, the utility model provides a folding storage basket of a battery car, both sides of the tail of the battery car are provided with two stand columns, a mounting frame is fixed between the two stand columns, and a storage basket is mounted on the mounting frame; the storage basket comprises a folding assembly, a supporting rope and a slow descent device; the folding assembly forms a storage space after being unfolded; the mounting frame comprises two side mounting plates and a cross beam connecting the two side mounting plates;

[0006] The folding assembly comprises a first folding bottom plate rotatably connected to the two side mounting plates; at least one side of the first folding bottom plate is provided with a supporting rope; at least one side of the first folding bottom plate is provided with a slow descent device;

[0007] The folding assembly is released, the first folding bottom plate is turned over downward, and the slow descent device slows down the turning speed of the first folding bottom plate.

[0008] In a preferred embodiment, the folding assembly comprises a first folding bottom plate, a second folding bottom plate, a folding stand plate and two side railings;

[0009] The inner side of the first folding bottom plate is rotatably connected to the two side mounting plates, the inner side of the second folding bottom plate is rotatably connected to the outer side of the first folding bottom plate, and the bottom edge of the folding stand plate is rotatably connected to the outer side of the second folding bottom plate;

[0010] The side rail is rotatably connected with the side edge of the folding upright panel; and the end of the side rail away from the folding upright panel is detachably and plug-in connectable with the stand column.

[0011] In a preferred embodiment, the side rail comprises a first connecting rod and a second connecting rod, the second connecting rod is below the first connecting rod, and the first connecting rod and the second connecting rod are connected by a connecting plate.

[0012] The two first connecting rods are arranged in an up-and-down staggered manner along the side edge of the folding upright panel, and the two first connecting rods are staggered when folded; the sum of the lengths of the two second connecting rods is less than or equal to the length of the bottom edge of the folding upright panel.

[0013] In a preferred embodiment, the end of the first connecting rod away from the folding upright panel is provided with a plug-in part, and the stand column is provided with a plug-in plate corresponding to the position of the plug-in part.

[0014] The plug-in part comprises a shell and a first plug-in pin movably arranged in the shell, the plug-in plate is provided with a first plug-in hole, and the shell is provided with a sliding groove; the first plug-in pin slides in the sliding groove to a first position and a second position.

[0015] In the first position, the first plug-in pin is inserted into the first plug-in hole, and the first connecting rod is connected with the stand column; in the second position, the first plug-in pin is separated from the first plug-in hole, and the first connecting rod is separated from the stand column.

[0016] In a preferred embodiment, the first plug-in pin is provided with a convex column, the convex column extends out of the sliding groove, the rear end of the first plug-in pin is fixed with an elastic member, the elastic member is limited in the shell, and the elastic member drives the first plug-in pin to extend and be inserted into the first plug-in hole.

[0017] In a preferred embodiment, the mounting plate is provided with a second plug-in pin at a first position corresponding to the plug-in part, and the plug-in part comprises a second plug-in hole.

[0018] In the first position, the second plug-in pin is inserted into the second plug-in hole; after the second plug-in pin is separated from the second plug-in hole, the first plug-in pin can be separated from the first plug-in hole.

[0019] In a preferred embodiment, the slow descent device is a gas pressure rod or a hydraulic rod.

[0020] In a preferred embodiment, the first folding bottom plate comprises a first lock buckle, the cross beam is provided with a support frame, and the support frame is provided with a second lock buckle corresponding to the first lock buckle.

[0021] After the folding assembly is folded, the first lock buckle is locked on the second lock buckle; the second lock buckle comprises an unlocking member for releasing the first lock buckle.

[0022] In a preferred embodiment, the first lock catch comprises a U-shaped socket; the second lock catch comprises a fixed plate and a hook plate, the hook plate being rotatably connected to the fixed plate by a torsion spring;

[0023] The fixed plate is provided with a clamping groove outwardly, the hook plate is provided with a hook portion, and the hook portion is arranged in the clamping groove; the U-shaped socket is arranged in the clamping groove, and the hook portion is hooked on the outside of the U-shaped socket to form a lock;

[0024] The unlocking member is connected to the hook plate through a connecting rod, and the lifting of the unlocking member can simultaneously lift the hook plate through the connecting rod, so that the hook portion is separated from the U-shaped socket.

[0025] The embodiment also provides a battery car, which comprises the folding storage basket of the battery car.

[0026] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0027] By arranging the slow descending device on one side of the first folding bottom plate, when the folding assembly is released and the first folding bottom plate is flipped relative to the stand, the flipping speed of the first folding bottom plate can be slowed down, so that the first folding bottom plate is prevented from being flipped downward instantaneously, and damage caused by the instant tightening of the steel wire and damage of the bottom plate hinge connection structure are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is an installation schematic view of the folding storage basket at the tail of the battery car according to the preferred embodiment of the utility model;

[0029] Figure 2 It is a schematic view of the opened folding storage basket according to the preferred embodiment of the utility model;

[0030] Figure 3 It is a schematic view of the overall structure of the folding storage basket according to the preferred embodiment of the utility model;

[0031] Figure 4 It is a schematic view of the plug-in connection between the side rail and the stand of the folding storage basket according to the preferred embodiment of the utility model;

[0032] Figure 5 It is a structure view of the second lock catch according to the preferred embodiment of the utility model;

[0033] Figure 6 It is a schematic view of the staggered folding of the two side rails of the folding storage basket according to the preferred embodiment of the utility model;

[0034] Figure 7 It is a schematic view of the complete folding of the folding storage basket according to the preferred embodiment of the utility model;

[0035] Figure 8The utility model discloses a folding article basket is locked in the schematic diagram of the tail of the electric vehicle after folding.

[0036] Mark explanation:1, folding article basket;11, first folding bottom plate;111, connecting shaft;112, pull rope connector;113, first lock catch;114, U type mouth;12, second folding bottom plate;121, hinged structure;13, folding vertical plate;14, side rail;141, pivot;142, first connecting rod;143, second connecting rod;144, connecting plate;15, pull rope;16, plug connector;161, shell;162, first plug pin;163, sliding slot;164, convex column;165, elastic part;166, second jack;17, slow lowering device;2, rear seat;21, stand;3, mounting frame;31, mounting plate;32, crossbeam;33, plugboard;34, first jack;35, second plug pin;4, support frame;41, second lock catch;42, unlocking piece;43, fixed plate;44, torsional spring;45, hook plate;46, clamping groove;47, hook part;48, connecting rod;5, tray;6, ice bucket. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all other embodiments obtained by those skilled in the art without creative work on the basis of the embodiments in the utility model belong to the protection scope of the utility model.

[0038] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be wall-mounted connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through an intermediate medium, can be the communication between two elements, and those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0040] Reference Figures 1-8 The embodiment provides a folding storage basket 1 arranged at the tail of an electric vehicle, two columns 21 are arranged on both sides of the electric vehicle behind the rear seats 2, a mounting rack 3 is fixedly arranged between the two columns 21, the folding storage basket 1 is arranged on the mounting rack 3 (as shown in Figure 1 ), and can be unfolded to form a basket structure for storage use relative to the two columns 21, or can be folded and clamped on the mounting rack 3, so that the tray 5 arranged below the tail of the electric vehicle is used conveniently, and the tray 5 below can be used for placing an ice bucket 6. The electric vehicle mentioned in the embodiment can be used as a golf cart, a sightseeing vehicle, a shared electric vehicle, a passenger electric vehicle and the like.

[0041] As Figures 2-3 , the provided folding storage basket 1 comprises a folding assembly, a supporting pull rope 15 and a slow descent device 17, the folding assembly is composed of a first folding bottom plate 11, a second folding bottom plate 12, a folding vertical plate 13 and two side railings 14. The mounting rack 3 comprises two side mounting plates 31 and a cross beam 32 connecting the two side mounting plates 31, the inner side edge of the first folding bottom plate 11 is rotationally connected to the two side mounting plates 31 through a connecting shaft 111, the inner side edge of the second folding bottom plate 12 is rotationally connected to the outer side edge of the first folding bottom plate 11 through a hinged structure 121, the bottom edge of the folding vertical plate 13 is rotationally connected to the outer side edge of the second folding bottom plate 12, and the two side railings 14 are arranged on the two side edges of the folding vertical plate 13 and are rotationally connected to the side edges of the folding vertical plate 13.

[0042] When the storage basket is unfolded for use, the first folding bottom plate 11 is first rotated downward from the two side mounting plates 31 and is unfolded horizontally, then the second folding bottom plate 12 is rotated outward around the first folding bottom plate 11 and is unfolded horizontally, then the folding vertical plate 13 is vertically unfolded upward around the second folding bottom plate 12, and finally the two side railings 14 are unfolded outward and are inserted and fixed on the mounting rack 3, and the unfolded state of the storage basket is as shown in Figure 2 . If folding is needed, the unfolding steps are sequentially folded from the back, and after folding, the first folding bottom plate 11 is locked on the mounting rack 3, and the folded state of the storage basket is as shown in Figure 7 , and the locking of the first folding bottom plate 11 and the mounting rack 3 is as shown in Figure 8 .

[0043] The specific structural design of the folding storage basket 1 is as follows:

[0044] The first folding bottom plate 11 and the two side mounting plates 31 are rotationally connected through the connecting shaft 111 of the inner side edge of the first folding bottom plate 11, and the supporting pull rope 15 is arranged on one side of the mounting plate 31, and the design of the supporting pull rope 15 is as shown in Figure 3The end of the supporting pull rope 15 away from the mounting plate 31 is fixedly connected to the pull rope connecting head 112 of the first folding bottom plate 11 (as shown in Figure 2 ), which is arranged on the outer side of the first folding bottom plate 11, and the supporting pull rope 15 is used to support the first folding bottom plate 11 to maintain a horizontal state after unfolding, facilitating the unfolding or folding operation of other folding structures.

[0045] In order to avoid the problem that the supporting pull rope 15 is instantly tightened and damaged due to the instant downward folding of the first folding bottom plate 11 after the release of the locking between the first folding bottom plate 11 and the mounting frame 3, a slow descending device 17 is arranged between the mounting plate 31 on one side and the first folding bottom plate 11, which can be a gas pressure rod or a hydraulic rod, and can achieve the effect of slow descending when the first folding bottom plate 11 is lowered. When folding is needed, an external force is applied to press the slow descending device 17 to lock the first folding bottom plate 11 on the mounting frame 3. In this embodiment, the supporting pull rope 15 is arranged on one side of the first folding bottom plate 11, and the slow descending device 17 is arranged on the other side.

[0046] The two side rails 14 are rotatably connected to the two sides of the folding upright plate 13, and each of the two side rails 14 includes a first connecting rod 142 and a second connecting rod 143, and the second connecting rod 143 is located below the first connecting rod 142, and the first connecting rod 142 and the second connecting rod 143 are connected through a connecting plate 144. A rotating shaft 141 is installed on the side edge of the folding upright plate 13, and the first connecting rod 142 and the second connecting rod 143 are connected to the rotating shaft 141 and are driven to rotate relative to the folding upright plate 13 through the rotating shaft 141. When folding, the first connecting rod 142 and the second connecting rod 143 are driven to rotate inward by the rotating shaft 141 and are folded and placed inside the side edge of the folding upright plate 13. In order to save storage space and reasonably arrange the folding and placing direction, the two first connecting rods 142 are arranged in an up-down staggered manner along the side edge of the folding upright plate 13, and when the two first connecting rods 142 are rotated inward, they are folded and stored in an interlaced manner. The sum of the lengths of the two second connecting rods 143 is less than or equal to the length of the bottom edge of the folding upright plate 13, and when they are folded, they can be placed flush on the folding upright plate 13, so that the two second connecting rods 143 will not interfere with each other when folded. For specific structures, refer to Figure 7 .

[0047] The plug-in fixed arrangement of the side rail 14 and the mounting frame 3 is a detachable plug-in structure. The end of each of the two first connecting rods 142 away from the folding upright plate 13 is provided with a plug-in piece 16, and the two ends of the cross beam 32 of the mounting frame 3 are provided with plug-in plates 33, and the plug-in piece 16 and the plug-in plate 33 form a detachable plug-in connection, as shown in Figure 4 .

[0048] As shown in Figure 4The plug-in part 16 comprises a shell 161 and a first plug pin 162 movably arranged in the shell 161, and the plug plate 33 is provided with a first insertion hole 34, and the first plug pin 162 is used to be inserted into the first insertion hole 34 to form a plug-in. The shell 161 is provided with a sliding groove 163 at the side, the first plug pin 162 is provided with a protruding column 164, the shell 161 is internally provided with an elastic member 165, the rear end of the first plug pin 162 is fixedly connected with one end of the elastic member 165, the elastic member 165 is limited in the shell 161 and can be compressed or bounced up along the length direction of the first plug pin 162. The other end of the first plug pin 162 is driven to extend out of the shell 161 by the bounce-up of the elastic member 165 and can be inserted into the first insertion hole 34.

[0049] The first plug pin 162 is driven to slide in the sliding groove 163 to a first position and a second position under the action of the protruding column 164, and the protruding column 164 is respectively clamped at the two ends of the sliding groove 163 at the first position and the second position. At the first position, the first plug pin 162 is inserted into the first insertion hole 34, and the first connecting rod 142 is connected with the cross beam 32; at the second position, the first plug pin 162 is separated from the first insertion hole 34, and the first connecting rod 142 is separated from the cross beam 32. When the storage basket is unfolded, the side rail 14 on both sides is opened, the plug-in part 16 is used to be plugged and fixed on the plug plate 33, when folding is needed, the protruding column 164 is only needed to be pressed and moved outward, the first plug pin 162 is compressed to retract the elastic member 165, the first plug pin 162 is separated from the first insertion hole 34, and the side rail 14 can be moved to be folded. By fixing the side rail 14 on the mounting frame 3 behind the electric vehicle, the stability of the storage basket is increased, and the sliding or falling of the articles during driving is prevented.

[0050] In order to make the unfolded folding storage basket 1 better bear the weight, a bearing structure is added in the detachable plug-in and fixed structure of the side rail 14 and the mounting frame 3, which plays a bearing role and stabilizes the plug-in connection of the side rail 14. Specifically, a second plug pin 35 is arranged on the mounting plate 31 at the two ends of the cross beam 32 corresponding to the first position of the plug-in part 16, and a second insertion hole 166 is arranged on the plug-in part 16 corresponding to the second plug pin 35 (as shown in Figure 4 ) When the folding storage basket 1 is unfolded, the side rail 14 is opened, the second plug pin 35 is inserted into the second insertion hole 166 (as shown in Figure 3 ) to bear the weight first, after the second plug pin 35 is connected with the second insertion hole 166, the first plug pin 162 is inserted into the first insertion hole 34 to be connected, so that the side rail 14 is prevented from falling off, when the folding storage basket 1 is folded, the first plug pin 162 is first separated from the first insertion hole 34, and then the second plug pin 35 is separated from the second insertion hole 166, and the side rail 14 is folded.

[0051] The basket is fixed on the cross beam 32 by the first folding bottom plate 11 after folding, and the cross beam 32 is provided with a support frame 4, the support frame 4 is provided with a second locking buckle 41, and the first folding bottom plate 11 is provided with a first locking buckle 113 at the outside edge, the first locking buckle 113 is buckled on the second locking buckle 41, so that the basket is maintained in the folded state, and the specific structure is referred to Figure 8 . Meanwhile, the locking buckle is provided with an unlocking member 42 for buckling the folding buckle, so that the basket can be unfolded.

[0052] As Figure 5 , the second locking buckle 41 includes a fixed plate 43 and a hook plate 45 connected to the fixed plate 43 by a torsion spring 44, the fixed plate 43 is provided with a clamping groove 46 on the outer side, the hook plate 45 is provided with a hook portion 47, and the hook portion 47 is placed in the clamping groove 46. The first locking buckle 113 has a U-shaped mouth 114, when the first locking buckle 113 is inserted into the clamping groove 46, the hook plate 45 is lifted to form a gap under the rotation of the torsion spring 44, so that the U-shaped mouth 114 is inserted into the clamping groove 46, and the hook plate 45 is pressed under the reset of the torsion spring 44, and the U-shaped mouth 114 is limited, so that the U-shaped mouth 114 is buckled in the clamping groove 46.

[0053] The unlocking member 42 is connected to the hook plate 45 by a connecting rod 48, and the hook plate 45 is lifted by the connecting rod 48 by moving the unlocking member 42, so that the hook portion 47 is separated from the U-shaped mouth 114, the U-shaped mouth 114 is released from the limit, and the first folding bottom plate 11 can be unfolded. By providing the foldable basket 1, the space utilization is improved, when the backpack is not needed, the space at the rear of the electric vehicle can be maximized by unfolding the foldable basket 1, and an additional storage area is provided.

[0054] The above is only the preferred specific embodiment of the present application, but the design concept of the present application is not limited to this, any skilled person in the art can make non-essential changes to the present application within the technical scope disclosed by the present application, which is an infringement of the protection scope of the present application.

Claims

1. A folding storage basket for an electric vehicle, the electric vehicle having two uprights on either side of the vehicle tail, a mounting frame being secured between the two uprights, the mounting frame having a storage basket mounted thereon; characterised in that: The basket comprises a folding assembly, a supporting rope and a slow descent device; the folding assembly forms a storage space after being unfolded; the mounting frame comprises two mounting plates and a crossbeam connecting the two mounting plates; The folding assembly comprises a first folding bottom plate rotatably connected with the two mounting plates; at least one side of the first folding bottom plate is provided with a supporting rope; at least one side of the first folding bottom plate is provided with a slow descent device; The folding assembly is released, the first folding bottom plate is flipped downward, and the slow descent device slows down the flipping speed of the first folding bottom plate.

2. The folding basket of claim 1, wherein: The folding assembly comprises a first folding bottom plate, a second folding bottom plate, a folding vertical plate and two side railings; The inner side of the first folding bottom plate is rotatably connected with the two mounting plates, the inner side of the second folding bottom plate is rotatably connected with the outer side of the first folding bottom plate, and the bottom edge of the folding vertical plate is rotatably connected with the outer side of the second folding bottom plate; The side railings are rotatably connected with the side edges of the folding vertical plate; one end of the side railings away from the folding vertical plate is detachably and plug-in connectable with the stand.

3. The folding basket of claim 2, wherein: The side railings comprise first connecting rods and second connecting rods; the second connecting rods are below the first connecting rods, and the first connecting rods and the second connecting rods are connected through a connecting plate; The two first connecting rods are arranged in an up-down staggered manner along the side edges of the folding vertical plate; after being folded, the two first connecting rods are placed in a staggered manner; the sum of the lengths of the two second connecting rods is less than or equal to the length of the bottom edge of the folding vertical plate.

4. The folding basket of claim 3, wherein: One end of the first connecting rod away from the folding vertical plate is provided with a plug-in part, and the crossbeam is provided with a plug plate corresponding to the position of the plug-in part; The plug-in part comprises a shell and a first plug pin movably arranged in the shell; the plug plate is provided with a first plug hole, and the shell is provided with a sliding groove; the first plug pin slides in the sliding groove to a first position and a second position; In the first position, the first plug pin is inserted into the first plug hole, and the first connecting rod is connected with the mounting frame; In the second position, the first plug pin is separated from the first plug hole, and the first connecting rod is separated from the mounting frame.

5. The folding basket of claim 4, wherein: The first plug pin is provided with a convex column which is extended from the sliding groove; the rear end of the first plug pin is fixed with an elastic member which is limited in the shell; the elastic member drives the first plug pin to extend and be inserted into the first plug hole.

6. The folding basket of claim 4, wherein: The mounting plate is provided with a second plug pin corresponding to the first position of the plug-in part; the plug-in part comprises a second plug hole; In the first position, the second plug pin is inserted into the second plug hole; after the second plug pin is separated from the second plug hole, the first plug pin can be separated from the first plug hole.

7. The folding basket of claim 1, wherein: The slow descent device is a gas pressure rod or a hydraulic rod.

8. The folding basket of claim 1, wherein: The first folding bottom plate comprises a first lock buckle, the crossbeam is provided with a supporting frame, and the supporting frame is provided with a second lock buckle corresponding to the first lock buckle; After the folding assembly is folded, the first lock buckle is locked on the second lock buckle; the second lock buckle comprises an unlocking member for releasing the first lock buckle.

9. The folding basket of claim 8, wherein: The first lock buckle comprises a U-shaped socket; the second lock buckle comprises a fixed plate and a hook plate, and the hook plate is rotatably connected with the fixed plate through a torsional spring; The fixed plate is outwardly provided with a clamping groove, the hook plate is provided with a hook portion, the hook portion is arranged in the clamping groove, the U-shaped clamping opening is arranged in the clamping groove, and the hook portion is hooked on the outside of the U-shaped clamping opening to form locking. The unlocking member is connected with the hook plate through a connecting rod, the hook plate is lifted through the connecting rod when the unlocking member is lifted, and the hook portion is separated from the U-shaped clamping opening.

10. A battery car characterized by: A folding basket for a scooter, comprising a basket body, a handle, a folding mechanism and a locking mechanism, wherein the folding mechanism comprises a first folding rod and a second folding rod, the first folding rod is connected with the handle, the second folding rod is connected with the basket body, the first folding rod and the second folding rod are connected through a hinge, the locking mechanism comprises a fixed plate, a hook plate and an unlocking member, the fixed plate is arranged on the first folding rod, the hook plate is arranged on the second folding rod, the unlocking member is arranged on the handle, the fixed plate is provided with a clamping groove, the hook plate is provided with a hook portion, the hook portion is arranged in the clamping groove, the U-shaped clamping opening is arranged in the clamping groove, and the hook portion is hooked on the outside of the U-shaped clamping opening to form locking. The unlocking member

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