CN212170373U - Folding protection frame and storage vehicle - Google Patents

Abstract

The utility model relates to a folding fender bracket and put thing car, include: the upright frame is used for being installed on the vehicle body and surrounding the periphery of the object to be placed; the rotating mechanism is arranged on the vertical frame; and the blocking and protecting mechanism is connected with the rotating mechanism and can rotate relative to the stand, and can be turned over to the upper part and/or the side of the object to be placed. When the worker falls down accidentally, the worker cannot be stabbed by the cutter due to the blocking protection of the blocking and protecting mechanism; when the worker contacts the cutter in a short distance, the blocking and protecting mechanism is turned to the side of the cutter, and the clothes of the worker can be prevented from being damaged and injured by hooking or accidental scratching of the cutter. Therefore, the safety protection capability of the storage vehicle can be greatly improved by installing the folding protection frame, the property and personal safety of workers are guaranteed, and various unpredictable potential safety hazards are eliminated to a greater extent.

Description

Folding protection frame and storage vehicle

Technical Field

The utility model relates to a protective equipment technical field especially relates to a folding fender bracket and put thing car.

Background

In order to reduce the occupied space and facilitate centralized management, more and more people use the object placing vehicles to place certain objects in a centralized manner. For example, in a manufacturing shop, various tools for processing products are collectively placed on a tool rest cart. The top of an original tool rest vehicle is designed with a plurality of stations which are of a completely open structure, and each station is respectively provided with a type of tool. Under the condition, because the worker is in direct contact with the cutter, when the worker accidentally falls down or is close to the knife rest trolley, the worker is very easy to be stabbed or scratched by the cutter, and unpredictable personal injury is caused.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a folding protection frame, namely a storage vehicle, and the object is to solve the problem that in the prior art, a worker is easily accidentally injured.

The technical scheme is as follows:

in one aspect, the present application provides a folding cradle, comprising:

the upright frame is used for being installed on the vehicle body and surrounding the periphery of the object to be placed;

the rotating mechanism is arranged on the vertical frame; and

the blocking and protecting mechanism is connected with the rotating mechanism and can rotate relative to the vertical frame, and the blocking and protecting mechanism can be turned over to the upper side and/or the side of the object to be placed.

The folding fender bracket of above-mentioned scheme is used and is equipped on putting the thing car, should put the thing car for example can be the knife rest car of putting the cutter, is used for preventing that the cutter from causing unexpected bodily injury to the staff through the folding fender bracket of installation. Specifically, the stand is first attached to the body of the tool rest cart and surrounds the periphery of the tool (object to be placed), and then the guard mechanism is attached to the stand via a rotating mechanism, and the guard mechanism can rotate relative to the stand, so that the guard mechanism can be turned over above or to the side of the tool. Namely, when the knife rest trolley is in a temporary storage state, the blocking and protecting mechanism blocks the upper part of the cutter, and when workers accidentally fall down, the workers cannot be stabbed by the cutter due to the blocking and protecting of the blocking and protecting mechanism; or when the tool rest cart is in a use state and a worker closely contacts the tool, the blocking and protecting mechanism is turned over to the side of the tool, and the clothes of the worker can be prevented from being damaged and injured by hooking or accidental scratching of the tool. Therefore, the safety protection capability of the storage vehicle can be greatly improved by installing the folding protection frame, the property and personal safety of workers are guaranteed, and various unpredictable potential safety hazards are eliminated to a greater extent.

The technical solution of the present application is further described below:

in one embodiment, the stand comprises four upright posts arranged in a rectangular shape, the rotating mechanism comprises four rotating assemblies which are arranged on the upright posts in a one-to-one correspondence manner, the blocking and protecting mechanism comprises a first blocking plate and a second blocking plate, the first blocking plate is connected with the two rotating assemblies on one long edge, and the second blocking plate is connected with the two rotating assemblies on the other long edge.

In one embodiment, the stand further comprises a first supporting beam and a second supporting beam, two ends of the first supporting beam are respectively connected with the two upright columns located on one short side, two ends of the second supporting beam are respectively connected with the two upright columns located on the other short side, and when the first baffle and the second baffle are turned over to the position above the object to be placed, the first baffle and the second baffle are pressed on the first supporting beam and the second supporting beam.

In one embodiment, the four upright posts have the same structure and each upright post comprises a fixed rod, a movable rod arranged on the fixed rod in a lifting and sliding manner, and a fastening adjusting piece used for locking or releasing the fixed rod and the movable rod.

In one embodiment, the top end surface of the fixed rod is provided with a sliding hole inwards along the axial direction, the side wall of the fixed rod is provided with a screw hole communicated with the sliding hole, the movable rod is inserted into the sliding hole in a sliding manner, and the fastening adjusting piece is screwed in the screw hole and can push or release the movable rod.

In one embodiment, the outer peripheral wall of the bottom end of the fixing rod is provided with an external thread structure, and the external thread structure is used for being assembled with a preset threaded hole in the vehicle body in a threaded mode.

In one embodiment, the rotating assembly comprises a mounting plate, a first connecting plate, a rotating shaft and a second connecting plate, the mounting plate is mounted at the top end of the movable rod, the first connecting plate is mounted on the mounting plate, the second connecting plate is hinged to the first connecting plate through the rotating shaft, and the second connecting plate is further connected with the first baffle and the second baffle.

In one embodiment, the mounting plate is assembled and connected with the movable rod through a fastening connecting piece, the first baffle plate and the second baffle plate are provided with an avoiding concave part, and the avoiding concave part is in avoiding fit with the head of the fastening connecting piece.

In one embodiment, the outer wall of the movable rod is concavely provided with a step part, and the mounting plate is arranged in the step part in an overlapping mode.

In addition, this application still provides a storage vehicle, and it includes folding fender bracket as above.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a foldable protective frame according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a foldable protective frame according to another embodiment of the present invention;

fig. 3 is a partially enlarged structural diagram of a portion B in fig. 1.

Description of reference numerals:

10. erecting a frame; 11. a column; 111. fixing the rod; 112. a movable rod; 112a, a step part; 113. fastening an adjusting piece; 12. a first support beam; 13. a second support beam; 20. a rotating mechanism; 21. a rotating assembly; 211. mounting a plate; 212. a first connecting plate; 213. a second connecting plate; 214. a rotating shaft; 30. a shielding mechanism; 31. a first baffle plate; 32. a second baffle; 40. avoiding the concave part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to," "disposed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the specific manner of fixedly connecting one element to another element can be implemented by the prior art, and will not be described herein, and preferably, a screw-threaded connection is used.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.

The embodiment of the application provides a storage vehicle, and according to difference such as use and occasion, this storage vehicle can be used to place various types of article, for example cutter, graphite electrode, cultivated in a pot, wait to process spare part etc.. The present embodiment focuses on placing the knife as an example.

It will be appreciated that when the cart is used to place tools, the cart essentially becomes a tool rest cart. The knife rest car mainly comprises a car body, a folding protection frame, a roller and a plurality of auxiliary accessories. The gyro wheel is installed in the automobile body bottom, makes the automobile body can freely remove, conveniently puts the thing car and changes different workplaces. The car body is a cubic steel frame structure formed by welding steel members. The vertical interval in inside of automobile body is installed not co-altitude and is put the thing board, can be used to shelve all kinds of auxiliary appliances, promotes the thing ability of putting the thing car. The handle is welded at one of the broadsides of the trolley body, so that the trolley is convenient for workers to move.

The top surface of the object placing vehicle is a working surface which is used for placing a cutter. A plurality of orderly-arranged placing stations are preassembled on the top surface, so that the cutters can be orderly placed one by one. On the basis of the arrangement, the difficulty and the time consumption of searching and obtaining the target tool by the staff can be greatly reduced.

The folding protection frame is used for being installed on the top surface of the vehicle body and arranged around the cutter, and the folding protection frame plays a role in isolating workers from the cutter. Specifically, because the storage trolley has a non-working temporary storage state and a working use state, the foldable protective frame also has two structural states correspondingly.

As shown in fig. 1 and 2, a folding cradle according to an embodiment of the present application includes: a stand 10, a rotating mechanism 20 and a guard mechanism 30. The stand 10 is used for being mounted on a vehicle body and surrounding the periphery of an object to be placed; the rotating mechanism 20 is mounted on the stand 10; the guard mechanism 30 is connected to the rotating mechanism 20 and can rotate relative to the stand 10, and the guard mechanism 30 can be turned over above and/or to the side of the object (tool). It can be understood that the blocking mechanism 30 is in the first blocking structure state when the blocking mechanism is turned over to the upper side of the cutter, and is in the second blocking structure state when the blocking mechanism 30 is turned over to the side of the cutter. The two different structural states are respectively used for the protection requirements of accidental injury accidents under different conditions.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: the folding fender bracket of above-mentioned scheme is used and is equipped on putting the thing car, should put the thing car for example can be the knife rest car of putting the cutter, is used for preventing that the cutter from causing unexpected bodily injury to the staff through the folding fender bracket of installation. Specifically, the stand 10 is first attached to the body of the tool rest vehicle and is disposed around the periphery of the tool (object) and then the guard mechanism 30 is attached to the stand 10 via the turning mechanism 20, and the guard mechanism 30 can be rotated with respect to the stand 10 so that the guard mechanism 30 can be turned over above or to the side of the tool. Namely, when the tool rest cart is in a temporary storage state, the blocking and protecting mechanism 30 blocks the cutter, and when a worker accidentally falls down, the worker cannot be stabbed by the cutter due to the blocking and protecting of the blocking and protecting mechanism 30; or when the tool rest cart is in a use state and a worker closely contacts the tool, the blocking and protecting mechanism 30 is turned over to the side of the tool, and the problem that the clothes of the worker are hooked by the tool or accidentally scratched to be damaged and injured can be avoided. Therefore, the safety protection capability of the storage vehicle can be greatly improved by installing the folding protection frame, the property and personal safety of workers are guaranteed, and various unpredictable potential safety hazards are eliminated to a greater extent.

On the basis of the above embodiments, in some embodiments, the vertical frame 10 includes four upright posts 11 arranged in a rectangular shape, and the structure of the four upright posts 11 arranged in the rectangular shape is just adapted to the vehicle body structure of a cubic structure, so as to ensure that the storage cart is overall beautiful and tidy. During installation, each upright post 11 is correspondingly installed at four top corners of the vehicle body. Of course, it should be noted that, in some other embodiments, the vehicle body may also be in other shape structures, and correspondingly, the stand 10 may also be in other shape structures adapted to the vehicle body, such as a triangle, a circle, and the like, which may be specifically selected according to actual needs.

With reference to fig. 1 and fig. 2, in addition, the rotating mechanism 20 includes four rotating assemblies 21 mounted on the upright 11 in a one-to-one correspondence manner, the guard mechanism 30 includes a first guard plate 31 and a second guard plate 32, the first guard plate 31 is connected to two rotating assemblies 21 on one long side, and the second guard plate 32 is connected to two rotating assemblies 21 on the other long side. In this way, the first baffle plate 31 and the second baffle plate 32 can be respectively installed and fixed on the set of oppositely arranged upright posts 11 through the rotating assembly 21, so that the first baffle plate 31 and the second baffle plate 32 can be overturned to the top of the upright frame 10 to cover the upper opening area of the cutter, thereby preventing the accident that the cutter stabs the worker from the lower part after the worker accidentally falls down. Or the first baffle 31 and the second baffle 32 can also be turned over to the side part of the vertical frame 10 to separate and baffle the lateral opening area of the cutter, so that the accident that the cutter is accidentally hooked or scratched to hurt the worker due to the fact that the cutter is contacted too closely when the worker selects the cutter is avoided.

It should be noted that, based on the above structural arrangement, it can be understood that the two longitudinal sides of the cart are working sides, that is, the worker is in a position where the time is much in the actual work, and therefore, the first baffle 31 and the second baffle 32 are selected to be turned over to the longitudinal sides. The first shutter 31 and the second shutter 32 may be designed to be turned to the side in the width direction according to actual needs.

It should be noted that the first shutter 31 and the second shutter 32 are not limited to being simultaneously located above or on the side of the tool. According to actual needs, only one of the first baffle 31 and the second baffle 32 can be turned over and placed above the cutter, and the other can be turned over and placed on the side of the cutter.

It should be further noted that the first baffle 31 and the second baffle 32 should be designed to have the following dimensions: when the two are turned over above the cutter, the joint of the first baffle 31 and the second baffle 32 needs to be completely spliced or partially overlapped as much as possible, so as to avoid the occurrence of fit clearance and reduce the top protection capability. When the first baffle 31 and the second baffle 32 are turned to the side of the cutter, the horizontal projection of the first baffle 31 and the second baffle 32 should completely cover the cutter with each size, so as to improve the lateral protection capability.

Or, in other embodiments, only one integral baffle can be installed to realize single-side turnover unidirectional protection; or four baffles are adopted to realize four-way turnover and four-way protection, which are all within the protection scope of the scheme of the application.

With continuing reference to fig. 1 and 2, further, considering that the four columns 11 are independent and spaced apart from each other, the first baffle 31 and the second baffle 32 are also independent and unsupported to ensure that the first baffle 31 and the second baffle 32 are stable after being turned over above the cutter. In some embodiments, the stand 10 further includes a first supporting beam 12 and a second supporting beam 13, two ends of the first supporting beam 12 are respectively connected to two of the upright posts 11 located on one of the short sides, two ends of the second supporting beam 13 are respectively connected to two of the upright posts 11 located on the other short side, and when the first baffle 31 and the second baffle 32 are turned over above the object, the first baffle 31 and the second baffle 32 are pressed on the first supporting beam 12 and the second supporting beam 13. Thus, the first support beam 12 and the second support beam 13 can link different columns 11 in the width direction into a whole, so that the overall structural strength and stability of the vertical frame 10 are improved to a certain extent; meanwhile, longitudinal support can be formed on the first baffle plate 31 and the second baffle plate 32 which are positioned above the cutter, and the support capability of the first baffle plate 31 and the second baffle plate 32 on workers is guaranteed.

On the basis of any of the above embodiments, the first baffle 31 and the second baffle 32 are made of a high-strength transparent material, such as but not limited to tempered glass, acrylic, high-strength plastic, and the like. Preferably, the first baffle 31 and the second baffle 32 are both made of acrylic, so that the manufacturing cost is low, the strength is high, and the first baffle is easy to obtain and machine-formed.

Referring to fig. 3, in some embodiments, the four columns 11 have the same structure, which is beneficial to reducing the difficulty in design and manufacture and facilitating maintenance and replacement of damaged parts in the later period. Specifically, the upright 11 includes a fixed rod 111, a movable rod 112 slidably disposed on the fixed rod 111, and a fastening adjuster 113 for locking or releasing the fixed rod 111 and the movable rod 112. That is, in this embodiment, the upright post 11 adopts the structural design capable of being adjusted in a lifting manner, so that when the placed cutters are different, or the lengths of the placed cutters are different, and the height after vertical placement is high and low, the upright post 10 with different heights can be obtained by loosening the fastening adjusting piece 113 and moving the movable rod 112 up and down, and then locking the fastening adjusting piece 113. The stand 10 with the structural design has wider application and protection capability.

In the above embodiment, the fixing rod 111 may be a hollow square steel tube, a hollow round steel tube, or other structural members; preferably, the fixing rod 111 is a hollow round steel pipe. The movable rod 112 is a round steel rod, a square steel rod, or other structural members, and preferably, the movable rod 112 is a round steel rod. The round steel bar is adopted, so that the assembly difficulty of the fixing rod 111 can be reduced.

The bottom periphery wall of dead lever 111 is equipped with external screw thread structure, and the top surface of automobile body is located four apex angles punishment and is seted up threaded hole respectively, and when each stand 11 was installed with the automobile body, it could with the threaded hole spiro union equipment of predetermineeing on the automobile body to make external screw thread structure. The connecting structure is simple, convenient to assemble and disassemble, and beneficial to improving the working efficiency. Of course, in some other embodiments, the fixing rod 111 and the vehicle body may be assembled and fixed by other connecting structures in the prior art, for example, a snap connection, a welding connection, a riveting connection, a magnetic connection, and the like, which may be selected according to actual needs.

Specifically, in some embodiments, the top end surface of the fixed rod 111 is provided with a sliding hole inward along the axial direction, and the depth of the sliding hole should be not less than the length of the movable rod 112, so as to obtain a wider longitudinal adjustment stroke. In addition, the side wall of the fixed rod 111 is provided with a screw hole communicated with the sliding hole, the movable rod 112 is inserted into the sliding hole in a sliding manner, and the movable rod 112 and the sliding hole are in clearance fit, so that the movable rod 112 can be lifted and slid more smoothly, and the adjusting operation can save labor. The fastening adjusting member 113 is a fastening bolt screwed in the screw hole and capable of pushing or loosening the movable rod 112. That is, when the movable rod 112 needs to be adjusted in a lifting manner, the fastening bolt is unscrewed backwards, so that the fastening bolt is separated from the movable rod 112, and the movable rod 112 obtains a degree of freedom; when the height of the stand 10 is adjusted, the fastening bolt is screwed forward, and the front end of the fastening bolt can push the movable rod 112 tightly, thereby limiting the degree of freedom of the movable rod 112.

It should be noted that the embodiment of the above embodiments using the pipe-rod socket and the bolt locking adjustment does not limit the protection scope of the present application. In other embodiments, other solutions for adjusting the height of the stand 10 may also be adopted, for example, a cylinder or a motor is used as a power component, the cylinder or the motor is connected to a scissors lifting mechanism, and the scissors lifting mechanism is rotatably connected to the first blocking plate 31 and the second blocking plate 32. The purpose of driving the first baffle 31 and the second baffle 32 to move up and down is achieved by driving the scissor lifting mechanism to do telescopic motion, so that the protection requirements of cutters with different heights are met. Or, the motor is connected with the vertically arranged screw rod, and the motor can drive the screw rod to synchronously rotate. The screw rod is screwed with a sliding block, so that the sliding block is connected with the first baffle 31 and the second baffle 32, and when the screw rod rotates, the sliding block slides on the screw rod, and the purpose that the first baffle 31 and the second baffle 32 move up and down along the height direction can be achieved.

With continued reference to fig. 3, in some embodiments, the rotating assembly 21 includes a mounting plate 211, a first connecting plate 212, a rotating shaft 214, and a second connecting plate 213, the mounting plate 211 is mounted on the top end of the movable rod 112, the first connecting plate 212 is mounted on the mounting plate 211, the second connecting plate 213 is hinged to the first connecting plate 212 through the rotating shaft 214, and the second connecting plate 213 is further connected to the first baffle 31 and the second baffle 32. Among them, the first connecting plate 212, the rotating shaft 214 and the second connecting plate 213 constitute a foldable hinge assembly having a wide range of rotational freedom, and the first flap 31 and the second flap 32 have a capability of being turned upward by 270 ° from a vertical direction (i.e., a position located at a side of the cutter) to a horizontal direction (i.e., a position located at an upper side of the cutter). And the folding hinge component has simple structure and is easy to implement and maintain. The mounting plate 211 is used to connect the movable rod 112 and the first connecting plate 212, so that the first connecting plate 212 is located at a side position of the movable rod 112, and installation interference between the first connecting plate 212 and the movable rod 112 is avoided.

In addition, in order to reduce the force applied by the worker to overturn the first baffle 31 and the second baffle 32, reduce labor intensity and improve work experience, an elastic torsion member (such as a torsion spring, a torsion piece and the like) can be further installed between the rotating shaft 214 and the first connecting plate 212 and the second connecting plate 213, and no matter the first baffle 31 and the second baffle 32 are overturned from the top to the side or from the side to the top, the gravity of a part of the first baffle 31 and the second baffle 32 can be offset by the aid of the reset elastic torsion force of the elastic torsion member, so that the worker can overturn the first baffle 31 and the second baffle 32 by using a small force.

The mounting plate 211 is assembled with the movable rod 112 by fastening connectors, in some embodiments, the fastening connectors are bolts, and the mounting plate 211 is locked by two bolts at a position close to the top side of the round steel rod. Lead to the installation insecure for avoiding the extrados of round steel stick and the contact of mounting panel 211, the concave step portion 112a that is equipped with of outer wall of movable rod 112, mounting panel 211 sets up in step portion 112 a. The structure of step portion 112a and the appearance structure adaptation of mounting panel 211, the area of contact of multiplicable movable rod 112 and mounting panel 211 plays good support fixed action to mounting panel 211 simultaneously, reaches the purpose that improves mounting panel 211 installation reliability. Of course, in other embodiments, the mounting plate 211 and the movable rod 112 may be assembled and fixed by other connecting structures, such as a snap connection, a welding, a riveting, and the like, and are also within the scope of the present application.

When the mounting plate 211 and the movable rod 112 are locked and connected by bolts, the heads of the bolts protrude out of the surface of the mounting plate 211, which can cause the interference problem when the first baffle 31 and the second baffle 32 are turned to the side of the cutter, and the first baffle 31 and the second baffle 32 cannot be turned in place and warped. In view of this, in some embodiments, the first baffle 31 and the second baffle 32 are provided with an avoiding recess 40, and the avoiding recess 40 is in avoiding fit with the head of the fastening connector. The escape recess 40 is a notch structure formed by recessing the first and second shutters 31 and 32 near the rotating unit 21, and the bolt head can be fitted into the notch, thereby avoiding the above-mentioned problem.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A folding cradle, comprising:

the upright frame is used for being installed on the vehicle body and surrounding the periphery of the object to be placed;

the rotating mechanism is arranged on the vertical frame; and

the blocking and protecting mechanism is connected with the rotating mechanism and can rotate relative to the vertical frame, and the blocking and protecting mechanism can be turned over to the upper side and/or the side of the object to be placed.

2. A folding cage according to claim 1, characterized in that said upright comprises four uprights arranged in a rectangular configuration, said rotating means comprise four rotating assemblies mounted on said uprights in a one-to-one correspondence, said blocking means comprise a first baffle connected to two of said rotating assemblies on one of the long sides and a second baffle connected to two of said rotating assemblies on the other long side.

3. The folding protective frame according to claim 2, wherein the vertical frame further comprises a first supporting beam and a second supporting beam, two ends of the first supporting beam are respectively connected with the two upright columns on one of the short sides, two ends of the second supporting beam are respectively connected with the two upright columns on the other short side, and when the first baffle and the second baffle are turned over to the position above the object to be placed, the first baffle and the second baffle are pressed on the first supporting beam and the second supporting beam.

4. The folding cradle of claim 2, wherein the four uprights are identical in structure and each comprise a fixed bar, a movable bar slidably mounted on the fixed bar in a lifting manner, and a fastening adjuster for locking or releasing the fixed bar and the movable bar.

5. The foldable protective frame according to claim 4, wherein a sliding hole is formed in the top end surface of the fixed rod along the axial direction, a screw hole communicated with the sliding hole is formed in the side wall of the fixed rod, the movable rod is slidably inserted into the sliding hole, and the fastening adjusting member is screwed in the screw hole and can push or release the movable rod.

6. A folding cradle as claimed in claim 5, wherein the outer peripheral wall of the bottom end of the fixing rod is provided with an external thread structure for screw-fitting assembly with a predetermined threaded hole of the vehicle body.

7. A folding cage according to claim 4 wherein the pivot assembly comprises a mounting plate mounted on the top end of the movable bar, a first link plate mounted on the mounting plate, a pivot shaft and a second link plate hinged to the first link plate via the pivot shaft and further connected to the first and second flaps.

8. The folding protective frame according to claim 7, wherein the mounting plate is assembled and connected with the movable rod through a fastening connecting piece, the first baffle plate and the second baffle plate are provided with an avoiding concave part, and the avoiding concave part is in avoiding fit with the head of the fastening connecting piece.

9. A folding cage according to claim 8 wherein the outer wall of the movable bar is recessed with a step into which the mounting plate rides.

10. A storage cart comprising a folding cradle as claimed in any one of claims 1 to 9.

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