Transfer flatcar storage rack

Abstract

The utility model relates to the technical field of medical transportation devices, in particular to a transfer flatcar storage rack which comprises a storage plate and two supporting plates, the two sides of the storage plate in the length direction are rotationally connected with a first supporting plate and a second supporting plate respectively, and a sliding rod is arranged at the end, not connected with the storage plate, of the first supporting plate and connected with a sliding rail in a sliding mode. The sliding rail is installed at the bottom of the transfer flatcar, the storage plate and the two supporting plates are folded at the bottom of the transfer flatcar or unfolded on the outer side of the rotary flatcar under the action of rotation and sliding, after unfolding, the storage plate is located over the lathe face of the transfer flatcar, and the two supporting plates are arranged on the two sides of the transfer flatcar in the width direction respectively. The second supporting plate is further detachably connected with a transfer flatcar through a mounting mechanism. Angle fixing devices used for fixing the rotating angles of the storage plate and the supporting plates are arranged at the rotating joints of the storage plate and the two supporting plates. The commodity shelf can be directly and additionally arranged on the existing transfer flatcar, is convenient to store and disassemble, and does not influence the normal use of the transfer flatcar.

Description

Technical Field

[0001] The utility model relates to the technical field of medical transport devices, in particular to a storage rack for a transfer flatbed vehicle. Background Art

[0002] During emergency treatment, a number of emergency instruments, such as monitors, defibrillators, suction pumps, syringe pumps, and first aid kits, are usually placed on a transport cart. When a patient lies on a cart, there is insufficient visible space, and the instruments can easily squeeze the patient. The instruments can also be interfered with or damaged by contact with the patient, posing a safety hazard. Furthermore, the transport cart lacks a battery storage function and cannot store enough power for the equipment, making it easy for the equipment to run out of power, potentially delaying the rescue.

[0003] In the prior art, there are already transport flatbeds that can place various devices and charge the devices. For example, the utility model patent with application number CN201921573087.6 discloses a cardiology nursing transport device. However, this device places various equipment and supplies at the bottom of the flatbed. The space at the bottom of the flatbed is small, which makes it inconvenient to operate the instruments and is not conducive to observing the dynamic changes of the instruments and equipment, and it is impossible to detect changes in the condition in a timely manner.

[0004] The utility model patent application number CN202021104926.2 discloses a multifunctional flatbed transport device, which is detachably connected to a storage table on a guardrail. When some therapeutic instruments are needed, the therapeutic instruments are placed on the storage table without occupying the space on the bed board and will not come into contact with the patient. There is no need to worry about accidents caused by the patient's limb movements colliding with the instruments, which is safer. However, the storage table is not needed at all times. The storage table is inconvenient to store and carry when not in use, and not all flatbeds are equipped with guardrails. The storage table is only suitable for flatbeds equipped with guardrails and the guardrail size matches the through slots and positioning locking parts. The scope of application of the storage table is small, and it is not convenient to install on existing flatbeds that are already in use. If all flatbeds are replaced with the multifunctional flatbed transport device described in the application, it will be very expensive and cause serious waste. Utility Model Content

[0005] In view of the above content, it is necessary to provide a transfer flatbed rack that can be directly installed on the existing transfer flatbed, which can make full use of the existing transfer flatbed and is convenient to store and dismantle when not needed, without affecting the normal use of the transfer flatbed.

[0006] The foldable platform is connected to the second support plate by a first lever and a second lever, and the foldable platform is connected to the second support plate by a second lever. One end of the rail, which is the end of the slide rail located on the outside of the transfer flat car, and the first support plate is parallel or perpendicular to the bed surface of the transfer flat car by rotating the slide rod relative to the slide rail; the first support plate, the storage plate, and the second support plate are folded at the bottom of the transfer flat car or unfolded on the outside of the rotating flat car under the action of rotation and sliding. After unfolding, the storage plate is located directly above the bed surface of the transfer flat car, and the two support plates are arranged on both sides of the width direction of the transfer flat car; wherein, the second support plate is also detachably connected to the transfer flat car through an installation mechanism; the rotation connection between the storage plate and the first support plate and the second support plate is provided with an angle fixing device for fixing the rotation angle of the storage plate and the support plate.

[0007] Furthermore, the end of the second support plate that is not connected to the storage plate can be detachably connected to the mounting mechanism, and the mounting mechanism can also be detachably connected to the transfer flatbed; the mounting mechanism includes a mounting seat and a mounting rod, the mounting seat is a U-shaped structure, and is clamped to the transfer flatbed through the U-shaped opening, and the mounting rod is threadedly inserted on a U-shaped vertical side of the U-shaped structure, one end of the mounting rod is located in the U-shaped opening of the U-shaped structure, and the other end is located on the outside of the U-shaped structure, and is located below the transfer flatbed when the mounting seat is installed on the transfer flatbed; the U-shaped horizontal side of the U-shaped structure is detachably connected to the second support plate.

[0008] The cam is secured to the side of the U-shaped frame by means of a latch, and the cam is secured to the side of the U-shaped frame by means of a latch. The strip structure has a length of the limit block that is greater than the diameter of the slide slot, and a limit slot for the limit block to pass through is opened on the side wall of the U-shaped horizontal side of the mounting seat, and the limit slot is connected to the slide slot; when the limit block is facing the limit slot and the spring is in a natural state, the free end of the slider extends out of the slide slot and is inserted into the card hole when the second support plate is engaged in the card slot, and the other end of the slider retracts into the slide slot when the spring is in a compressed state; a movable block for rotating the limit block is provided on the limit block, and the end of the movable block not connected to the limit block is located on the outside of the card slot.

[0009] Furthermore, the fixing device includes a connecting rod, a connecting ring, and a connecting block adapted to the connecting ring, one end of the connecting rod is rotatably mounted on the side of the support plate on which it is located through a telescopic member, the side being adjacent to the side on which one end of the storage plate is connected to the support plate, the rotation axis is parallel to the width direction of the storage plate, and the telescopic direction of the telescopic member is the direction of the rotation axis; the other end of the connecting rod is provided with the connecting ring, the connecting ring is detachably sleeved on the connecting block, the connecting block is provided on the side of the storage plate, the side and the side where the connecting rod are located are on the same side in the width direction of the storage plate; when the connecting ring is connected to the connecting block, the angle between the storage plate and the first support plate or the second support plate is 90°.

[0010] Furthermore, a fixing block is provided on the side of the second support plate, which is adjacent to the side where one end of the storage plate is connected to the support plate. A fixing hole adapted for the fixing block is provided on the connecting rod located on the first support plate. After the first support plate, the storage plate and the second support plate are folded together under the action of rotation, the fixing block is inserted into the fixing hole.

[0011] Furthermore, it also includes a bracket, which is installed at the bottom of the transfer flatbed. The bracket is used to receive the folded storage plate and two support plates. Openings are provided on both sides of the bracket, which are the two sides in the width direction of the transfer flatbed. The openings are used for the folded storage plate and two support plates to enter and exit.

[0012] Furthermore, the storage plate includes a first storage plate and a second storage plate, one end of the first storage plate is rotatably connected to the second storage plate, and the other end is rotatably connected to the first support plate; the end of the second storage plate not connected to the first storage plate is rotatably connected to the second support plate.

[0013] Furthermore, the two side surfaces of the first support plate are respectively provided with locking members for keeping the first support plate perpendicular to the bed surface of the transfer flat car. The two side surfaces are adjacent to the side where one end of the first support plate is connected to the storage plate. The locking members include a locking block and a screw. The locking block is located on the transfer flat car, and the screw is threadedly inserted into the locking block and the first support plate.

[0014] Furthermore, a mobile power supply is installed on the storage rack, and the mobile power supply is installed inside the storage board. A socket, a charging interface and a display screen are provided outside the storage board, and the socket, charging interface and display screen are electrically connected to the mobile power supply.

[0015] Furthermore, the socket, charging port and display screen are arranged on the side of the storage plate that is not connected to the support plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a first support plate, a second support plate, and a storage plate. The storage plate, the first support plate, and the second support plate can be unfolded or folded under the action of rotation; when unfolded, the storage plate is located above the transfer cart, and the first aid instruments are placed on top of the storage plate, which does not occupy the space of the transfer cart and is convenient for operating the instruments and observing the dynamic changes of the instruments and equipment; after folding, it can be convenient for storage when the storage plate is not needed. The present invention can also completely move the folded first support plate, the second support plate, and the storage plate to the bottom of the transfer cart under the action of sliding, which will not affect other operations. In addition, in addition to supporting the storage plate, the first support plate and the second support plate also have the function of guardrails, which can enhance the safety of some transfer carts that do not have guardrails. Moreover, a mobile power supply is provided on the storage plate of this embodiment, which is convenient for charging the equipment at any time to avoid delaying rescue due to lack of power.

[0018] 2. The utility model can be directly installed on the existing transfer flat car, which can make full use of the existing transfer flat car. It is also convenient to store and dismantle when not needed, and will not affect the normal use of the transfer flat car. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the storage rack of the utility model when it is unfolded and used.

[0020] Figure 2It is a side view of the storage rack of the utility model when it is unfolded and used.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the storage rack of the utility model when it is unfolded and used.

[0022] Figure 4 This is a schematic diagram of the bottom of the flatbed when the storage rack of the utility model is unfolded for use (the bracket is hidden).

[0023] Figure 5 It is a side view of the storage rack of the utility model when it is folded to one side of the flat car.

[0024] Figure 6 It is a three-dimensional view of the storage rack of the utility model when it is folded to one side of the flat car.

[0025] Figure 7 This is a main view of the storage rack of the utility model when it is folded and stored.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the storage rack of the utility model when folded and stored.

[0027] Figure 9 It is a schematic diagram of the bottom of the flatbed when the storage rack of the utility model is folded and stored.

[0028] Description of main component symbols

[0029] In the figure: 1- storage plate, 11- first storage plate, 12- second storage plate, 13- socket, 14- charging port, 15- display screen, 21- first support plate, 211- slide bar, 22- second support plate, 221- card hole, 222- fixed block

[0030] 3-angle fixing device, 31-connecting rod, 311-fixing hole, 32-connecting ring, 33-connecting block,

[0031] 4-transfer flat car, 41-slide rail, 421-locking block, 422-screw,

[0032] 51-mounting seat, 511-slot, 5111-slide, 5112-slider, 5113-spring, 5114-limiting block, 5115-limiting slot, 5116-movable block, 52-mounting rod, 521-operating handle;

[0033] 6-Bracket.

[0034] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0035] See also Figure 1-9In a preferred embodiment of the present invention, a storage rack of a transfer flat car 4 includes a storage plate 1 and two support plates, the two support plates being a first support plate 21 and a second support plate 22. The two sides of the storage plate 1 in the length direction are rotatably connected to the first support plate 21 and the second support plate 22 respectively, and the three are folded together or unfolded by rotation. The rotation connection between the storage plate 1 and the first support plate 21 and the second support plate 22 is provided with an angle fixing device 3 for fixing the rotation angle of the storage plate 1 and the support plate. When unfolded, the storage plate is located directly above the bed surface of the transfer flat car, and the first support plate 21 and the second support plate 22 are used to support the storage plate 1, and the angle fixing device 3 makes the first support plate 21 and the second support plate 22 at right angles to the plate surface of the storage plate 1. Emergency instruments can be placed on the storage plate 1 without occupying the space on the bed surface of the transfer flat car 4, and it is also convenient to operate the instruments and observe the dynamic changes of the instruments and equipment.

[0036] Preferably, the fixing device includes a connecting rod 31, a connecting ring 32, and a connecting block 33 adapted to the connecting ring 32. One end of the connecting rod 31 is rotatably mounted on the side of the support plate on which it is located through a telescopic member. The side is adjacent to the side where the end of the storage plate 1 is connected to the support plate. The rotation axis is parallel to the width direction of the storage plate 1, and the telescopic direction of the telescopic member is the direction of the rotation axis; the other end of the connecting rod 31 is provided with the connecting ring 32, and the connecting ring 32 is detachably sleeved on the connecting block 33. The connecting block 33 is provided on the side of the storage plate 1, and the side and the side where the connecting rod 31 are located are on the same side in the width direction of the storage plate 1; when the connecting ring 32 is connected to the connecting block 33, the angle between the storage plate 1 and the first support plate 21 or the second support plate 22 is 90°. When the storage rack is needed, adjust the surface of the first support plate 21 to be perpendicular to the car plate of the transfer flat car 4, then rotate the storage plate 1 to be perpendicular to the first support plate 21, and stretch the telescopic piece on the first support plate 21 to make the connecting rod 31 on the first support plate 21 away from the first support plate, then rotate the connecting rod 31, and make the connecting ring 32 on the connecting rod 31 face the connecting block 33 on the storage plate 1, push the telescopic piece back, so that the connecting ring 32 on the connecting rod 31 is sleeved on the connecting block 33 on the storage plate 1, so that the angle between the first support plate 21 and the storage plate 1 is maintained at 90°; use the same method to adjust the angle between the second support plate 22 and the storage plate 1 to maintain it at 90°. In this embodiment, there are four angle fixing devices 3, which are respectively arranged at the four corners of the storage board 1 connecting the first support plate 21 and the second support plate 22. This can more stably maintain the angle between the storage board 1 and the first support plate 21 and the second support plate 22 at 90°. The adjustment method is consistent and will not be repeated here. More preferably, the storage board 1 includes a first storage board 11 and a second storage board 12, one end of the first storage board 11 is rotatably connected to the second storage board 12, and the other end is rotatably connected to the first support plate 21; the end of the second storage board 12 not connected to the first storage board 11 is rotatably connected to the second support plate 22. Under the action of rotation, the storage board 1 can be folded, and the storage length of the storage board 1 is reduced by folding, making it more convenient to fold this storage rack and store it at the bottom of the transfer flatbed 4.

[0037] Furthermore, a sliding rod 211 is provided at one end of the first support plate 21 that is not connected to the storage plate 1, and the sliding rod 211 is slidably connected to the slide rail 41, and the sliding track is parallel to the width direction of the transfer flat car 4. The slide rail 41 is installed at the bottom of the transfer flat car 4 and extends to the outside of the transfer flat car 4. The first support plate 21 is slidably connected to the transfer flat car 4 by sliding on the slide rail 41 by the sliding rod 211. The slide rod 211 is rotatably connected to one end of the slide rail 41, which is the end of the slide rail 41 located on the outside of the transfer flat car 4. The first support plate 21 is parallel or perpendicular to the bed surface of the transfer flat car 4 by rotating relative to the slide rail 41 by the sliding rod 211. ; The first support plate 21, the storage plate 1, and the second support plate 22 are folded at the bottom of the transfer flatbed 4 or unfolded on the outside of the rotating flatbed 4 under the action of rotation and sliding. After unfolding, the storage plate 1 is located directly above the bed surface of the transfer flatbed 4, and the two support plates are arranged on both sides in the width direction of the transfer flatbed; wherein, the second support plate 22 is also detachably connected to the transfer flatbed 4 through an installation mechanism; when in use, slide the first support plate 21 to the outside of the transfer flatbed 4, and then rotate the plate surface of the first support plate 21 to be perpendicular to the car plate of the transfer flatbed 4, and then adjust the angle between the first support plate 21, the second support plate 22 and the storage plate 1 to 90° according to the method described above.

[0038] Preferably, the end of the second support plate 22 that is not connected to the storage plate 1 can be detachably connected to a mounting mechanism, and the mounting mechanism can also be detachably connected to the transfer flatcar 4; the mounting mechanism includes a mounting seat 51 and a mounting rod 52, the mounting seat 51 is a U-shaped structure, and is clamped to the transfer flatcar 4 through the U-shaped opening, and the mounting rod 52 is threadedly inserted on a U-shaped vertical side of the U-shaped structure, one end of the mounting rod 52 is located in the U-shaped opening of the U-shaped structure, and the other end is located on the outside of the U-shaped structure, and is located below the transfer flatcar 4 when the mounting seat 51 is installed on the transfer flatcar 4; the U-shaped horizontal side of the U-shaped structure is detachably connected to the second support plate 22. The mounting mechanism can be fixed to the transfer flatcar 4 by rotating the mounting rod 52 so that it abuts against the bed plate of the transfer flatcar 4. In addition, an operating handle 521 is provided on the end of the mounting rod 52 located on the outside of the U-shaped structure to facilitate the rotation of the mounting rod 52.

[0039] More preferably, both sides of the second support plate 22 are provided with a card hole 221, and the two side surfaces are adjacent to the side where the end of the second support plate 22 is connected to the storage plate 1; the U-shaped horizontal edge of the mounting seat 51 is provided with a card slot 511, and the notch of the card slot 511 is arranged in the opposite direction of the U-shaped opening of the mounting seat 51; both groove walls of the card slot 511 are provided with a slide groove 5111, and a slider 5112 is movably installed on the slide groove 5111, and a spring 5113 is sleeved on the slider 5112, one end of the slider 5112 is located on the outer side of the U-shaped horizontal edge of the mounting seat 51, and the other end is a free end; a limiting block 5114 is provided on the slider 5112, and the limiting block 5114 is located between the slide groove 5111 and the end of the slider 5112 located on the outer side of the U-shaped horizontal edge of the mounting seat 51, and the limiting block 5112 is a strip structure. The length of the limit block 5112 is greater than the diameter of the slide groove 5111, and a limit groove 5115 for the limit block 5112 to pass through is opened on the side wall of the U-shaped horizontal side of the mounting seat 51, and the limit groove 5115 is connected to the slide groove 5111; when the limit block 5112 is facing the limit groove 5111 and the spring 5113 is in a natural state, the free end of the slider 5112 extends out of the slide groove 5111 and is inserted into the card hole 221 when the second support plate 22 is stuck in the card slot 511, and the other end of the slider 5112 retracts into the slide groove 5111 when the spring 5113 is in a compressed state; a movable block 5116 for rotating the limit block is provided on the limit block 5112, and the end of the movable block 5116 not connected to the limit block 5112 is located on the outside of the card slot 511. When the end of the second support plate 22 that is not connected to the storage plate 1 is inserted into the card slot 511, the slider 5112 slides into the slide slot 5111 under the pressure of the second support plate 22 and the contraction of the spring 5113. When the card hole 221 and the slide slot 5111 are aligned with each other, the slider 5112 is inserted into the card hole, thereby connecting the second support plate 22 to the mounting seat 51; when the second support plate 22 needs to be disassembled from the mounting seat 51, it is only necessary to pull the movable block 5116 outward so that the limit block 5114 slides out along the limit groove 5115 to the outside of the limit groove 5115. At this time, the slider 5112 is disengaged from the card hole 221 and is located in the slide slot 5111, and then the movable block 5116 is rotated so that the limit block 5114 cannot return to the limit groove 5115 and the slider 5442 cannot be inserted into the card hole 221, thereby removing the second support plate 22 from the mounting seat 51.

[0040] Preferably, a fixing block 222 is provided on the side of the second support plate 22, and the side is adjacent to the side where one end of the storage plate 1 is connected to the support plate, and a fixing hole 311 adapted to the fixing block 222 is provided on the connecting rod 31 located on the first support plate 21. After the first support plate 21, the storage plate 1, and the second support plate 22 are folded together under the action of rotation, the fixing block 222 is inserted into the fixing hole 311. By inserting the fixing block 222 into the fixing hole 311, the first support plate 21, the storage plate 1, and the second support plate 22 are kept in a folded state to prevent them from automatically unfolding under non-human force. In addition, locking members are provided on both sides of the first support plate 21 for maintaining the first support plate 21 perpendicular to the bed surface of the transfer flatbed trolley 4. These two side surfaces are adjacent to the side where the end of the first support plate 21 connected to the storage plate 1 is located. The locking members include a locking block 421 and a screw 422. The locking block 421 is located on the transfer flatbed trolley 4, and the screw 422 is threadedly inserted between the locking block 421 and the first support plate 21. When the first support plate 21 is rotated to be perpendicular to the bed surface of the transfer flatbed trolley 4, the locking block 421 and the first support plate 21 are threadedly inserted in sequence by the screw 422 to maintain the vertical state. At this time, the folded storage plate 1 and support plate can be used as a side guardrail of the transfer flatbed trolley.

[0041] More preferably, the present invention further comprises a bracket 6 mounted on the bottom of the transfer cart 4, the bracket 6 being configured to receive the folded storage board 1 and the two support boards, the bracket 6 being configured to have openings on both sides thereof, the two sides being on either side in the width direction of the transfer cart 4, the openings being configured to allow the folded storage board 1 and the two support boards to enter and exit. After the storage board 1 and the two support boards are folded, the first support board 21 is rotated by the sliding rod 211 to be parallel to the sliding track of the slide rail 41, and then the folded storage board 1 and the two support boards are pushed to the bottom of the transfer cart 4 through the opening of the bracket 6 under the action of sliding. The folded storage board 1 and the two support boards are positioned between the bracket 6 and the bed of the transfer cart 4, and the bracket 6 can prevent the end of the first support board 21 not provided with the sliding rod 211 from rotating arbitrarily by the rotation of the sliding rod 211, causing the first support board 21 and the storage board 1 to be unfolded, thereby affecting normal transfer operation.

[0042] In order to facilitate the charging of first aid instruments and prevent power outages during the first aid process, this embodiment facilitates charging of instruments at any time by installing a mobile power supply on the shelf. Preferably, the mobile power supply is installed inside the shelf 1, and a socket 13, a charging interface 14 and a display screen 15 are provided on the outside of the shelf 1, so that the socket 13, the charging interface 14 and the display screen 15 are electrically connected to the mobile power supply. The mobile power supply is installed inside the shelf 1, which can avoid the mobile power supply occupying the placement position of the instrument. The socket 13, the charging interface 14 and the display screen 15 are provided on the outside of the shelf 1, which is convenient for charging the instrument and the mobile power supply, and it is also convenient to check the power level of the mobile power supply at any time. More preferably, the socket 13, the charging interface 14 and the display screen 15 are provided on the side of the shelf 1 that is not connected to the support plate, which is more convenient for operation.

[0043] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A transfer flatbed rack, comprising a storage plate and two support plates, the two support plates being a first support plate and a second support plate, characterized in that: The two sides of the storage plate in the length direction are respectively rotatably connected to the first support plate and the second support plate, and the three are folded together or unfolded by rotation, and a sliding rod is provided at one end of the first support plate not connected to the storage plate, and the sliding rod is slidably connected to the slide rail, and the sliding track is parallel to the width direction of the transfer flat car. The slide rail is installed at the bottom of the transfer flat car and extends to the outside of the transfer flat car, and the first support plate is slidably connected to the transfer flat car by sliding on the slide rail, and the slide rod is rotatably connected to one end of the slide rail, which is the end of the slide rail located on the outside of the transfer flat car. The plate is parallel or perpendicular to the bed surface of the transfer flat car by rotating the slide rod relative to the slide rail; the first support plate, the storage plate and the second support plate are folded at the bottom of the transfer flat car or unfolded and rotated on the outside of the flat car under the action of rotation and sliding. After unfolding, the storage plate is located directly above the bed surface of the transfer flat car, and the two support plates are arranged on both sides in the width direction of the transfer flat car; wherein, the second support plate is also detachably connected to the transfer flat car through an installation mechanism; the rotation connection between the storage plate and the first support plate and the second support plate is provided with an angle fixing device for fixing the rotation angle of the storage plate and the support plate.

2. The transfer flatbed rack according to claim 1, characterized in that: The end of the second support plate that is not connected to the storage plate can be detachably connected to the mounting mechanism, and the mounting mechanism can also be detachably connected to the transfer flatbed; the mounting mechanism includes a mounting seat and a mounting rod, and the mounting seat is in a U-shaped structure and is clamped to the transfer flatbed through the U-shaped opening. The mounting rod is threadedly inserted on a U-shaped vertical side of the U-shaped structure, and one end of the mounting rod is located in the U-shaped opening of the U-shaped structure, and the other end is located on the outside of the U-shaped structure, and is located below the transfer flatbed when the mounting seat is installed on the transfer flatbed; the U-shaped horizontal side of the U-shaped structure is detachably connected to the second support plate.

3. The transfer flatbed rack according to claim 2, characterized in that: The two sides of the second support plate are provided with a card hole, and the two side surfaces are adjacent to the side where the end of the second support plate is connected to the storage plate; a card slot is provided on the U-shaped horizontal side of the mounting seat, and the notch of the card slot is arranged in the opposite direction of the U-shaped opening of the mounting seat; a slide groove is provided on the two groove walls of the card slot, and a slider is movably installed on the slide groove, and a spring is sleeved on the slider, one end of the slider is located on the outside of the U-shaped horizontal side of the mounting seat, and the other end is a free end; a limit block is provided on the slider, and the limit block is located between the slide groove and the end of the slider located on the outside of the U-shaped horizontal side of the mounting seat, and the limit block is strip-shaped. The cam is secured in place and has a U-shaped slot for securing the cam to the base, the U-shaped slot being adapted to engage the base during movement.

4. The transfer flatbed rack according to claim 1, characterized in that: The fixing device includes a connecting rod, a connecting ring, and a connecting block adapted to the connecting ring. One end of the connecting rod is rotatably mounted on the side of the support plate on which it is located through a telescopic member. The side is adjacent to the side on which the storage plate is connected to the support plate. The rotation axis is parallel to the width direction of the storage plate, and the telescopic direction of the telescopic member is the direction of the rotation axis. The other end of the connecting rod is provided with the connecting ring, which is detachably sleeved on the connecting block. The connecting block is provided on the side of the storage plate, and the side and the side where the connecting rod are located are on the same side in the width direction of the storage plate. When the connecting ring is connected to the connecting block, the angle between the storage plate and the first support plate or the second support plate is 90°.

5. The transfer flatbed rack according to claim 4, characterized in that: A fixing block is provided on the side of the second support plate, and the side is adjacent to the side where one end of the storage plate is connected to the support plate. A fixing hole adapted for the fixing block is provided on the connecting rod located on the first support plate. After the first support plate, the storage plate and the second support plate are folded together under the action of rotation, the fixing block is inserted into the fixing hole.

6. The transfer flatbed rack according to claim 1, characterized in that: It also includes a bracket, which is installed at the bottom of the transfer flatbed. The bracket is used to receive the folded storage plate and two support plates. Openings are provided on both sides of the bracket, which are the two sides in the width direction of the transfer flatbed. The openings are used for the folded storage plate and two support plates to enter and exit.

7. The transfer flatbed rack according to claim 1, characterized in that: The storage plate includes a first storage plate and a second storage plate, one end of the first storage plate is rotatably connected to the second storage plate, and the other end is rotatably connected to the first support plate; the end of the second storage plate not connected to the first storage plate is rotatably connected to the second support plate.

8. The transfer flatbed rack according to claim 1, characterized in that: The two side surfaces of the first support plate are respectively provided with locking parts for keeping the first support plate perpendicular to the bed surface of the transfer flat car. The two side surfaces are adjacent to the side where one end of the first support plate is connected to the storage plate. The locking parts include a locking block and a screw. The locking block is located on the transfer flat car, and the screw is threadedly inserted into the locking block and the first support plate.

9. The transfer flatbed rack according to claim 1, characterized in that: A mobile power supply is installed on the storage rack, and the mobile power supply is installed inside the storage board. A socket, a charging interface and a display screen are provided outside the storage board, and the socket, charging interface and display screen are electrically connected to the mobile power supply.

10. The transfer flatbed rack according to claim 9, characterized in that: The socket, charging interface and display screen are arranged on the side of the storage plate that is not connected to the support plate.

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