Multifunctional storage structure linked and folded with transfer flatcar

Abstract

A multifunctional storage structure linked and folded with a transfer flatcar comprises a mounting plate, a plug bush, a detachable mounting seat, a lifting seat, an extension component and a mounting base. The mounting base is a hollow box body, is provided with a covering plate, a drawer and an identity recognition assembly, is connected with the main bearing plate and the auxiliary bearing plate through a linkage hinge structure, and has folding and unfolding functions; a folding state magnetic reed switch and a thin film type pressure sensor are arranged and are used for detecting the storage state of the platform and prompting overload; and the mounting structure is provided with a locking assembly and a limiting device, so that quick disassembly and position fixation are facilitated. The transfer flatcar is compact in structure and flexible to adjust, and the expansion function and the intelligent level of the transfer flatcar are improved.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, and in particular relates to a multifunctional storage structure that can be folded in linkage with a transport flat car. Background Art

[0002] During clinical transport, emergency treatment, and ward rounds, medical staff often need to carry a large number of diagnostic instruments, medications, nursing supplies, and other personal belongings to cope with emergencies and diverse care needs. Existing transport flatbeds are relatively simple in structure, typically equipped with only static storage platforms or simple storage drawers. These cannot be flexibly adjusted to meet specific scenarios, and lack the folding and telescopic structure that can be used in conjunction with the flatbed. This makes it difficult to balance ease of operation with spatial adaptability.

[0003] In addition, most traditional auxiliary platforms have fixed structures and lack height adjustment and lateral extension functions, which is not conducive to universal adjustment for medical staff of different heights and different flatbed cart models; some platforms have problems such as insufficient stability, inability to load and unload quickly, and large space occupation in actual applications, which restricts their promotion and application in clinical frontline.

[0004] On the other hand, some platforms lack integrated identification or load monitoring devices, posing risks of misuse, loss, or uncontrolled load-bearing, failing to meet current hospital requirements for safety, information technology, and intelligent management. Therefore, there is an urgent need for structural innovation and functional upgrades to existing flatbed cart platforms to improve overall efficiency and safety. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a multifunctional storage structure that can be folded in conjunction with a transfer flatbed, effectively solving the problems of the existing transfer flatbed's auxiliary platform being unable to be flexibly adjusted, inconvenient to assemble and disassemble, occupying a large space, having poor stability, and lacking identity recognition and overload warning, thereby improving the efficiency of carrying materials and the safety of use in medical scenarios.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is: A multifunctional storage structure that is foldable in conjunction with a transfer flat car, comprising: The mounting plate is fixedly installed on one side of the transfer flat car frame; The socket and the mounting seat are fixed on the mounting plate, and the mounting seat is detachably plugged into the socket; The lifting seat is vertically slidably mounted on the mounting base. The lifting seat is guided and supported by the lifting screw and the lifting guide rod, and is driven by the lifting motor to achieve height adjustment; The extension component includes an extension slide and an extension guide sleeve. The extension slide is horizontally fixed on the lifting seat. The extension guide sleeve is fixedly connected to the bottom of the mounting base. The extension guide sleeve and the extension slide are slidably connected to each other, thereby realizing the horizontal telescopic movement of the mounting base relative to the lifting seat. The installation base is a hollow box structure with a cover plate on the top, an identification component and a drawer on the front, and a hidden hook inside the cover plate; The linkage hinge structure connects the mounting base, the main load-bearing plate and the middle plate. The main load-bearing plate is hinged to at least one secondary load-bearing plate in sequence through the middle plate. The secondary load-bearing plates can be folded or unfolded relative to each other. A folding state reed switch is provided at the bottom of the mounting base to detect the storage state of the main load plate and the auxiliary load plate and provide status prompts; A thin film pressure sensor is installed on the main load-bearing plate to detect the platform load and provide overload warnings; The bottom of the mounting base is provided with a slide rail structure in which a guide rail sleeve and a guide rail core cooperate, which is used to pull out the linkage hinge structure; A slot is provided on one side of the mounting plate, in which a locking column, a locking spring, a locking retaining ring, a locking support and a locking handle are installed to achieve rapid locking and releasing of the mounting base and the socket; A limiting sleeve is provided on the outside of the mounting base and cooperates with a limiting screw to limit and fix the extension component and the mounting base.

[0007] Preferably, the lifting screw and the lifting guide rod are arranged parallel to each other, the lifting screw and the mounting seat are rotatably connected, and the lifting guide rod and the mounting seat are fixedly connected; the lifting screw is driven to rotate by the lifting motor and is threadedly connected to the lifting seat, and the lifting guide rod and the lifting seat are slidably connected, thereby realizing the lifting seat to move up and down along the lifting guide rod.

[0008] Preferably, the extension component also includes an electric push rod, the cylinder end of the electric push rod is fixedly connected to the front side of the lifting seat through a flange, and the piston rod end of the electric push rod is detachably connected to the mounting base; the axis of the electric push rod is parallel to the sliding direction of the extension slide, and is used to drive the mounting base to perform linear telescopic movement along the extension slide; the end of the extension slide is provided with a T-shaped limit rib, and the corresponding end of the extension guide sleeve is provided with a polyurethane buffer block, and when the mounting base moves to the maximum stroke position, the T-shaped limit rib abuts against the polyurethane buffer block.

[0009] Preferably, the locking support is fixedly connected to the sleeve, the locking column is slidably connected to the locking support, the locking spring is sleeved on the outer periphery of the locking column and the two ends are respectively fitted to the opposite end faces of the locking retaining ring and the locking support, the tail end of the locking column passes through the locking support and is fixed with a locking handle, and the head end of the locking column can be inserted into the socket of the plug plate; the plug plate is fixedly connected to the mounting seat and slidably cooperates with the slot to achieve a detachable connection, so that the mounting seat can be removed from the slot and the sleeve together with the plug plate as a whole.

[0010] Preferably, the end of the piston rod of the electric push rod is fixedly connected with a circular positioning piece, and the circular positioning piece can be inserted into the sleeve hole of the limit sleeve; the limit sleeve is threadedly connected to a limit screw, and when the limit screw is tightened, the end of the limit screw abuts against the outer side surface of the circular positioning piece, thereby locking the piston rod in the limit sleeve to prevent the piston rod from falling out; when the limit screw is loosened, the circular positioning piece can withdraw from the limit sleeve, thereby realizing a quick disassembly connection between the electric push rod and the mounting base.

[0011] Preferably, the identity recognition component includes an NFC module and a QR code scanning module integrated on the mounting base, the NFC module is embedded in the left area of ​​the mounting base, and the QR code scanning module is embedded in the right area of ​​the mounting base; the NFC module is connected to the control circuit board in the mounting base through an I2C interface, and the QR code scanning module is connected to the control circuit board through a USB interface; the mounting base is provided with openings in the areas corresponding to the NFC module and the QR code scanning module, which are respectively covered with transparent sealing plates, and the control circuit board is provided with a three-color LED light and a buzzer for identity recognition status feedback, both of which are fixedly mounted on the internal bracket of the mounting base.

[0012] Preferably, the linkage hinge structure is fixedly mounted on the top of the guide rail core, the guide rail core is slidably fitted in the guide rail sleeve, and the guide rail sleeve is fixedly connected to the bottom of the mounting base; The main bearing plate is hingedly connected to the linkage hinge structure via a first electric shaft, a housing of the first electric shaft is installed in the linkage hinge structure, and an output shaft of the first electric shaft is connected to the main bearing plate; The left and right sides of the main bearing plate are respectively hingedly connected to the two intermediate plates via a second electric rotating shaft, the housing of the second electric rotating shaft is fixed to the bottom surface of the main bearing plate, and the output shaft of the second electric rotating shaft is respectively connected to the two intermediate plates; The ends of the two intermediate plates are respectively hingedly connected to the secondary supporting plate via a third electric rotating shaft. The housing of the third electric rotating shaft is fixed in the intermediate plate, and the output shaft of the third electric rotating shaft is connected to the secondary supporting plate, so that the secondary supporting plate can be folded relative to each other and retracted under the main supporting plate. The first, second and third electric shafts all use a reduction motor with a self-locking function or a DC motor with an electromagnetic brake structure, which is installed at the connection part of each carrier plate to achieve electric control of unfolding and folding and maintain stable positioning in a static state; The cover plate is hingedly connected by a fourth electric shaft provided between the cover plate and the top of the mounting base. The shell of the fourth electric shaft is fixed on the top of the mounting base, and the output shaft of the fourth electric shaft is connected to the cover plate. The cover plate is linked to open or close after being identified by the identity recognition component.

[0013] Preferably, the folding state reed switch is a normally open reed switch, which is fixedly mounted on the detection bracket at the bottom of the mounting base; a permanent magnet is embedded in the folding end of the main carrier plate, and when the main carrier plate is folded to the storage position, the permanent magnet approaches the folding state reed switch to close the normally open reed switch, thereby realizing folding state detection; The thin-film pressure sensor is disposed on the upper surface of the main carrier plate and is correspondingly embedded in a groove provided on the upper surface of the main carrier plate and fixed and sealed by gluing; the signal output end of the thin-film pressure sensor is connected to the analog-to-digital conversion module and is connected to the control circuit board inside the mounting base through a communication interface; The control circuit board is electrically connected to the folding state reed switch and the film pressure sensor, and is used to detect the folding state of the main load-bearing plate and the auxiliary load-bearing plate and to determine and prompt the load-bearing state of the platform.

[0014] The present invention has a novel structure, ingenious design, and simple and convenient operation. Compared with the prior art, it has the following advantages: 1. This device features a removable mounting base and socket structure, enabling rapid assembly and disassembly of the storage platform and transfer cart frame, improving compatibility and ease of maintenance. The device utilizes a lifting base, coupled with a lifting screw and guide rod for height adjustment, allowing for flexible adjustment based on the medical staff's height and operating habits, minimizing back strain. Furthermore, an extended slide and guide sleeve form a horizontal sliding structure, further driven by an electric push rod to enable the platform to extend and retract between different working ranges. This effectively adapts to different cart models and space requirements, ensuring stability while enhancing overall ease of operation and ergonomics.

[0015] 2. The device's linked hinge structure connects the main load-bearing plate, intermediate plate, and secondary load-bearing plate. Each part is hinged in sequence through an electric shaft, and cooperates with the bottom guide rail to realize the electric expansion and storage control of the entire platform; the intermediate plates and secondary load-bearing plates on both sides of the main load-bearing plate can be folded under the main load-bearing plate, and the cover plate is driven to open or close by the top electric shaft. When the entire platform is unfolded, it can provide multiple working levels. When stored, it fits compactly with the base of the device, significantly saving space and improving safety and passability during transportation; each shaft adopts a self-locking reduction motor or electromagnetic brake structure to ensure that it can be maintained firmly in any unfolded state, avoiding displacement or overturning, and meeting the safety and durability requirements in complex medical scenarios.

[0016] 3. The front side of the device integrates an identity recognition component with NFC and QR code scanning modules, which can verify usage permissions before operation and realize linkage opening control with the cover plate, effectively preventing the risk of misuse and material loss; the thin film pressure sensor installed on the main load-bearing plate is embedded in the platform surface and communicates with the internal control circuit board. It can detect the load-bearing condition of the platform in real time. When the preset load threshold is exceeded, the LED light and buzzer will sound an audible and visual alarm to remind the operator to avoid overloading. Combined with the bottom reed switch to detect whether the plate is in place, it further improves the status monitoring and prompting functions of the whole machine, enhances the intelligent management capabilities of the platform and ensures clinical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the first axonometric view of a multifunctional storage structure that is foldable in conjunction with a transfer flat car according to the present invention.

[0018] Figure 2 This is a second axonometric view of a multifunctional storage structure that is foldable in conjunction with a transfer flat car according to the present invention.

[0019] Figure 3 This is an axonometric view of a mounting plate of a multifunctional storage structure that is foldable in conjunction with a transfer flat car according to the present invention.

[0020] Figure 4 This is an axonometric view of a mounting base of a multifunctional storage structure that is foldable in conjunction with a transfer flat car according to the present invention.

[0021] Figure 5 This is a first axonometric view of the mounting base of a multifunctional storage structure that is foldable in conjunction with a transfer flat car according to the present invention.

[0022] Figure 6 This is a second axonometric view of the mounting base of a multifunctional storage structure that is foldable in conjunction with a transfer flat car according to the present invention.

[0023] Figure 7 This is a first axonometric view of the second state of the mounting base of a multifunctional storage structure that is folded in conjunction with a transfer flat car according to the present invention.

[0024] Figure 8 This is a second axonometric view of the second state of the mounting base of a multifunctional storage structure that is folded in conjunction with a transfer flat car according to the present invention.

[0025] In the accompanying drawings: 1-mounting plate, 2-plug sleeve, 3-mounting seat, 4-lifting seat, 5-extension component, 6-mounting base, 7-cover plate, 8-linked hinge structure, 9-main load-bearing plate, 10-auxiliary load-bearing plate, 11-drawer, 12-identification component, 13-slot, 14-locking column, 15-locking spring, 16-locking retaining ring, 17-locking support, 18-locking handle, 19-plug plate, 20-lifting screw, 21-lifting guide rod, 22-lifting motor, 23-extension slide plate, 24-extension guide sleeve, 25-limit sleeve, 26-limit screw, 27-hidden hook, 28-middle plate, 29-folding state reed switch, 30-thin film pressure sensor, 31-guide rail sleeve, 32-guide rail core. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0027] like Figures 1 to 8 As shown, the present invention provides a multifunctional storage structure that is linked and folded with a transfer flatbed. The structure as a whole includes a mounting assembly for connection and fixation, a displacement adjustment assembly for adjusting the height and front and rear extension, a functional platform assembly for carrying items, an intelligent sensing assembly for status monitoring and feedback, and a linked folding structure for storage control. The mounting plate 1 is a rectangular metal plate structure, which is fixedly mounted on the side of the transfer flatbed frame by screws or rivets to provide basic connection support. A socket 2 is fixedly connected to the middle of the mounting plate 1. The socket 2 is a cylindrical sleeve structure with a socket provided inside for plugging in the mounting seat 3. A plug plate 19 is provided at the bottom end of the mounting seat 3. The plug plate 19 is inserted into the slot 13 to achieve a stable connection between the mounting seat 3 and the socket 2. In order to achieve quick locking and disassembly, a locking column 14 is set in the slot 13. The locking column 14 is reset by the locking spring 15. The head end can be inserted into the socket of the plug plate 19, and the tail end is connected to the locking handle 18. Pulling the handle 18 can control the locking column 14 to retract, thereby realizing the quick plugging and unplugging operation of the mounting base 3.

[0028] The lifting base 4 is a sliding assembly used for vertical adjustment. Its lower portion slides over the guide rails of the mounting base 3. The lifting base 4 slides with the lifting guide rod 21. A transmission mechanism is formed by a lifting screw 20 and a lifting motor 22. The lifting screw 20 is threadedly connected to the lifting base 4, and the lifting guide rod 21 slides with the lifting base 4. The lifting motor 22 drives the lifting screw 20 to rotate, thereby achieving smooth vertical movement of the lifting base 4 along the guide rod. This structure facilitates adjustment of the platform height according to the user's height or operating requirements, improving ergonomics.

[0029] The front side of the lifting seat 4 is connected to an extension slide 23. The extension slide 23 is a rectangular metal plate that is fixedly connected to the lifting seat 4 and horizontally guided by a slide groove structure. The bottom of the mounting base 6 is installed with an extension guide sleeve 24 that slides with it. The extension guide sleeve 24 is a U-shaped covering structure that forms a sliding relationship with the extension slide 23. In actual application, the mounting base 6 can slide back and forth along the extension slide 23 to achieve horizontal telescopic adjustment of the platform. To control its sliding range and prevent it from sliding out, the rear end of the extension slide 23 is provided with a T-shaped limit rib, which forms a stroke-limiting buffer with the polyurethane buffer block at the end of the extension guide sleeve 24. The mounting base 6 can also be connected to the lifting seat 4 via an electric push rod to achieve forward and backward displacement under electric control. The push rod cylinder is fixed to the front of the lifting seat 4, and the end of the piston rod is fixed to the mounting base 6 by a limit sleeve 25 and a limit screw 26. Therefore, it has a positioning and locking function in both the advancing and retracting states, ensuring safe and stable operation.

[0030] The mounting base 6 is a hollow box-like structure with a reversible cover 7 on top. This cover 7 is hinged to the top of the base via a fourth, self-locking motorized shaft. This shaft is controlled by an identity verification component 12 on the front of the mounting base. Multiple hidden hooks 27 are located inside the cover 7, allowing for hanging IV bags, instrument bags, or small medical devices, improving storage efficiency. A drawer 11 is located on the front panel of the mounting base for storing commonly used items. The drawer utilizes an embedded guide rail structure with self-reset and anti-drop features, ensuring stability during transport.

[0031] The bottom of the mounting base 6 is connected to the main support plate 9 via a linkage hinge structure 8. The linkage hinge structure 8 is fixed to the top of the guide rail core 32, which is embedded in the guide rail sleeve 31. The guide rail sleeve 31 is fixed to the bottom of the mounting base 6, forming a retractable bottom support structure. The main support plate 9 and the linkage hinge structure 8 are hinged via a first electric shaft. The housing of the first electric shaft is fixed inside the hinge structure, and its output shaft is connected to the main support plate 9, enabling the plate to flip and unfold. The main support plate 9 is equipped with an intermediate plate 28 on each side, which is hinged to the main support plate 9 via a second electric shaft. The end of the intermediate plate 28 is further hinged to the secondary support plate 10 via a third electric shaft. All three sets of electric shafts are self-locking, allowing them to maintain their current position at any angle, thereby achieving multi-level deployment and stable load-bearing of the platform. In the folded state, each layer of the support plate can be folded and retracted under the main support plate in sequence. The linkage hinge structure 8 then drives the entire layer to slide into the mounting base 6, achieving efficient storage and portable transportation.

[0032] A thin film pressure sensor 30 is embedded on the upper surface of the main load-bearing plate 9, which is used to detect the load-bearing mass of the platform in real time. When the set threshold is exceeded, an alarm can be given by linking the sound and light prompt device through the control circuit board; and a folding state reed switch 29 is fixed to the bottom of the mounting base 6, and a permanent magnet is provided at the corresponding position of the main load-bearing plate 9. When the platform is fully folded to the storage position, the permanent magnet approaches the reed switch to close it, thereby generating a status signal for displaying the current folding state of the platform.

[0033] In summary, the present invention has a rigorous structural design, clear module division, reliable connections between components and easy disassembly and assembly, can flexibly adjust the height and telescopic distance to meet the needs of multiple clinical scenarios, and has intelligent monitoring, authority control and electric linkage functions, providing an effective solution for the structural optimization and functional expansion of the existing transfer flatbed platform.

[0034] As shown in the figure, the mounting base 3 is a hollow cubic structure, its lower end plugging into the socket 2 via an insert plate 19. The socket is provided with guide holes and limit holes, which cooperate with a locking mechanism to enable quick installation and removal. The lifting screw 20 and lifting guide rod 21 are arranged parallel to each other and longitudinally extend through the central cavity structure of the mounting base 3. One end of the lifting screw 20 is rotatably connected to the bottom of the mounting base 3 via a ball bearing, and the other end extends to the lifting base 4 and engages with a threaded hole provided therein. The lifting guide rod 21 is a solid optical axis structure, with its upper and lower ends slidingly connected to the mounting base 3 and lifting base 4 respectively via guide sleeves, thereby ensuring stability and anti-swaying ability during the lifting process.

[0035] The lift motor 22 is fixedly mounted within the lower cavity of the mounting base 3. The motor's output shaft is connected to the lift screw 20 via a coupling. Power is applied to the motor, driving the screw 20 to rotate. Due to the threaded engagement between the lift base 4 and the screw 20, the base 4 slides up and down along the lift guide rod 21, enabling precise adjustment of the platform height. To prevent the torque generated by the motor from affecting structural stability, the lift motor and mounting base 3 are connected using a thickened flange and equipped with a rubber shock-absorbing gasket, ensuring smooth operation with low noise and vibration.

[0036] To further enhance the platform's forward and backward adjustability, a set of electric push rod assemblies is installed on the front side of the lifting base 4. The cylinder end of the electric push rod is securely connected to the front wall of the lifting base 4 via a porous flange plate. The flange plate is equipped with multiple mounting holes to facilitate adjustment of the electric push rod's mounting angle or specification. The piston rod end of the electric push rod is connected to the rear end bottom of the mounting base 6 and is detachably connected via a set screw and a limit pin, facilitating subsequent maintenance or replacement. The push and pull direction of the electric push rod is aligned with the length of the extension slide 23, that is, parallel to the platform extension direction. Its function is to control the mounting base 6 to achieve linear reciprocating motion on the extension slide 23.

[0037] In terms of the sliding structure design, the extension slide 23 is a rectangular plate-like structure with symmetrical slide grooves or guide rails on both sides. The bottom surface is fixed to the lifting seat 4 by high-strength bolts. The extension guide sleeve 24 is a sliding block structure that matches the slide. Its bottom is fixedly connected to the mounting base 6 by screws, so that the mounting base 6 can slide on the slide along the guide direction. In order to limit the sliding distance and play a buffering and protective role, the tail end of the extension slide 23 is processed with an integrally formed T-shaped limit rib. The limit rib is pressed and formed from stainless steel material, with high overall strength and good impact resistance. The polyurethane buffer block that matches it is set on the inner side of the front end of the extension guide sleeve 24. Polyurethane has excellent elastic recovery and shock absorption properties. When the mounting base 6 moves forward to the limit under the action of the electric push rod, the T-shaped rib will contact the buffer block, which not only limits the stroke but also plays a soft stop buffering effect to prevent structural impact damage.

[0038] The structure described in this paragraph realizes smooth telescopic adjustment of the mounting base 6 through dual control of the electric push rod and mechanical limit. At the same time, the lifting motor and guide assembly ensure the overall vertical adjustment accuracy and load-bearing stability of the platform. The entire displacement adjustment system has a reasonable layout and compact structure. It can adapt to a variety of working environments and usage requirements, and has good manufacturability and ease of operation.

[0039] In order to achieve rapid installation, stable connection and detachable maintenance of the entire storage structure, the present invention is provided with a highly operable locking device between the transfer flat car and the storage structure. The device includes a locking column 14, a locking spring 15, a locking retaining ring 16, a locking support 17, a locking handle 18 and a matching structure plug plate 19 and a slot 13. Specifically, the locking support 17 adopts an integral aluminum alloy integral die-cast structure, which is fixed to the outer wall of the sleeve 2 by screws and serves as an installation reference part. The locking column 14 is a solid cylindrical structure with a round head insertion section at the front end and a rear end that is slidably set in the through hole of the locking support 17 by a through-hole manner, and a locking handle 18 is installed at the tail end. The handle is composed of an ABS engineering plastic shell and an embedded metal shaft to ensure wear resistance and tensile strength.

[0040] To provide a self-reset function, the locking spring 15 is a compressed coil spring structure, which is sleeved on the middle outer periphery of the locking column 14, with its two ends respectively abutting the inner end surfaces of the locking retaining ring 16 and the locking support 17. When the user pulls the locking handle 18, the locking column 14 overcomes the spring force under the action of tension and moves axially backward, and its front insertion section disengages the socket on the plug plate 19, thereby unlocking the mounting base 3. After releasing the handle, the spring 15 automatically pushes the locking column 14 back to the inserted state, completing the quick locking. This design does not require the use of tools in operation, allowing users to complete the locking and releasing operations with one click, which is particularly suitable for the rapid loading and unloading needs in clinical emergency environments.

[0041] Insert plate 19 is constructed of thick rectangular steel plate. One end is welded to the bottom of mounting base 3, and the other end slots smoothly into slot 13. Slot 13 is a rectangular slotted structure located inside mounting plate 1. Sliding guide rails surround the slot, providing a stable guide for insert plate 19. The front end of locking post 14 inserts into a pre-defined circular hole in insert plate 19, thus rigidly connecting mounting base 3 to slot 13. This structure ensures a secure connection while also allowing for quick removal of mounting base 3 from the transport cart for maintenance when necessary.

[0042] Furthermore, in order to ensure the safe connection between the electric push rod and the mounting base 6, the present invention is provided with a limit protection mechanism. The end of the piston rod of the electric push rod is fixedly connected to a circular positioning piece by a thread. The diameter of the positioning piece is tightly matched with the inner hole of the limiting sleeve 25, forming a stable limiting structure when inserted. The limiting sleeve 25 is installed on the corresponding mounting hole of the mounting base 6 through an internal thread and is fixed with screws to enhance stability. The limit screw 26 is a stainless steel adjustment screw with an anti-slip head, which is threaded into the side hole of the outer wall of the limiting sleeve 25. After tightening, its end can be pressed against the outer circular surface of the circular positioning piece, thereby preventing the piston rod from accidentally falling out due to vibration or impact during operation.

[0043] This limiting connection structure not only effectively prevents the electric push rod from loosening and slipping during operation, but also facilitates the subsequent maintenance, replacement, or removal of the electric push rod. Simply loosening the limiting screw 26 unlocks the circular positioning piece, quickly releasing the connection between the push rod and the base, greatly improving the device's flexibility and on-site maintenance efficiency.

[0044] To sum up, the structure described in this paragraph is reasonably designed, the components fit tightly together, and the operation is convenient. It can effectively ensure the stability and reliability of the overall device in a complex working environment, and at the same time has good production and manufacturing adaptability and standardized assembly conditions.

[0045] To achieve permission management and intelligent deployment of the storage structure, the present invention incorporates a multi-module identity recognition component and a multi-stage electric articulation mechanism to control the deployment state of the load-bearing plate and ensure the safety and rationality of the structure's operation. The identity recognition component 12 is an intelligent control interface module installed in the front area of ​​the mounting base 6. It integrates two identity recognition methods: an NFC near-field communication module and a QR code scanning module to accommodate the identity authentication needs of different users.

[0046] The NFC module utilizes a modular packaging structure, embedded within the left wall of mounting base 6 and secured via a press-fit mechanism. A rectangular window is provided on the outside for signal exchange, covered by a dust- and scratch-resistant transparent PC cover to ensure NFC recognition reliability and device durability. The NFC module connects to the main control circuit board within the mounting base via an I²C standard bus interface, facilitating data communication with the MCU, user identity verification, and authorization logic analysis. The QR code scanning module, mounted on the right side of mounting base 6, also features a separate window and a transparent cover. It houses a built-in CMOS image sensor and pattern recognition chip, supporting high-speed scanning of both on-screen and paper QR codes. This module connects to the control circuit board via a USB protocol interface for high-speed image acquisition and recognition data transmission.

[0047] The control circuit board features an identification status indicator system, including a three-color LED indicator and a buzzer. The LED lights up in red, green, and blue, indicating "identification failed," "identification successful," and "pending identification," respectively. The buzzer emits different audio frequencies when identification is successful or when an unauthorized identity attempts to operate, providing on-site notification of the current identification status. Both the LED and buzzer are fixedly mounted on a vertical bracket within the mounting base 6. A hollowed-out area allows the indicator color and sound to be transmitted, ensuring that medical staff can quickly access device status information.

[0048] To achieve the motorized expansion and contraction of the multi-stage carrier plate, the present invention incorporates a linked hinge structure 8, the bottom of which is screwed to the top of a guide rail core 32. Guide rail core 32 slides horizontally along a guide rail sleeve 31, a closed aluminum alloy profile welded to the bottom of the mounting base 6. This guide rail system forms a retractable platform for the hinged portion of the mounting base and carrier plate, and can be driven manually or by a linked motor to achieve the extension and retraction of the entire hinge structure.

[0049] A first electric shaft is provided at the top of the linkage hinge structure 8, which adopts an embedded compact electric shaft module. The shell contains a self-locking reduction motor. The motor drives the output shaft to rotate through a planetary gear reduction mechanism. The output shaft is connected to one end of the main bearing plate 9 by interference fit or screws, so that the main bearing plate 9 can be relatively flipped and unfolded around the axis of the shaft or folded back to the top of the linkage hinge structure.

[0050] Intermediate panels 28 are located on either side of the main carrier plate 9, each hinged to the intermediate panels 28 via a second electric shaft. These shaft modules are located within recessed grooves on either side of the bottom surface of the main carrier plate 9, with their output shafts running left and right and connected to opposite ends of the intermediate panels 28. The intermediate panels 28 are further connected to the secondary carrier plate 10 via a third electric shaft, internally embedded within the structure of the intermediate panel 28. This shaft allows the secondary carrier plate 10 to rotate downward under electrical control and ultimately fit snugly against the bottom surface of the main carrier plate 9, achieving a fully foldable, space-saving multi-layer structure.

[0051] In order to ensure the stability of the above-mentioned rotating shaft mechanism in the running and stopped states, all electric rotating shafts used in the present invention, including the first, second and third electric rotating shafts, use worm gear reduction motors with self-locking functions, or DC motors with built-in electromagnetic brake mechanisms to ensure that each supporting structure can remain in place without loosening or slipping in the no-power or standby state, significantly improving the safety and reliability of the storage platform.

[0052] During use, medical personnel complete identity verification by swiping a card (NFC) or scanning a QR code. Upon successful verification, the control circuit board outputs a control signal to activate the fourth motorized shaft. This shaft is located atop the mounting base 6 and connects the cover plate 7 to the base body. Its motor housing is mounted within the base's top structure, and its output shaft is hinged to one side of the cover plate. Upon successful identification, the motorized shaft drives the cover plate 7 to automatically flip open, revealing the internal load-bearing system and prompting the device to enter operational mode. If identification fails, the cover plate remains closed, and a red indicator light and buzzer signal a rejection.

[0053] This identification and linkage control system enables exclusive control by authorized personnel, effectively preventing accidental contact or misuse, and ensuring the synchronization and control of the platform's folding and unfolding processes. It is particularly adaptable and valuable for the storage of valuables and the management of pre- and post-operative supplies in public healthcare settings. Furthermore, the multi-stage self-locking electric deployment structure provides operational convenience and spatial adaptability, providing the mobile medical platform with powerful functional support and stable load-bearing capacity, demonstrating its significant practicality and potential for widespread adoption.

[0054] In order to realize the folding state perception of the storage structure and the platform load-bearing state monitoring during actual use, the present invention sets up a combined control structure of a reed switch and a pressure sensor, which are respectively used for the storage state identification of the main load-bearing plate and its auxiliary load-bearing plate and the platform safety load monitoring, so as to improve the intelligence level and safety of use.

[0055] The folded-state reed switch 29 utilizes a normally open reed switch structure, housed in a glass-encapsulated housing. A pair of magnetically engageable reed contacts are internally mounted to a built-in detection bracket at the bottom of the mounting base 6 via screws or snaps. The detection bracket is located directly below the folded end of the main carrier plate 9, maintaining an appropriate distance from the bottom surface of the main carrier plate 9. To enable magnetically controlled closure recognition, a permanent magnet is pre-installed at the folded end of the main carrier plate 9. The permanent magnet is securely fixed to a positioning cavity at the bottom of the main carrier plate 9 via an embedded structure or strong adhesive.

[0056] When the main carrier plate 9 rotates and folds from the expanded state to the reed state, its bottom permanent magnet gradually approaches the folded state reed switch 29 mounted on the bottom of the mounting base 6. After entering the working magnetic induction range, the reed switch contacts are attracted, thereby completing the circuit. The control circuit board determines that the carrier plate is in the folded state by reading the closed signal of the reed switch, and can provide status feedback prompts in combination with devices such as LED lights and buzzers to avoid equipment misoperation or misjudgment of the status. When the main carrier plate 9 is unfolded again, the permanent magnet moves away from the reed switch 29, the reed leaf naturally pops open, and the circuit is disconnected, completing the non-contact physical recognition of the folded / expanded state. It has the advantages of long life, simple structure, and high sensitivity.

[0057] To further enhance the platform's load management capabilities, a thin-film pressure sensor 30 is installed on the upper surface of the main load-bearing plate 9. This flexible thin-film sensor provides real-time sensing of contact pressure. Sensor 30 is embedded in a rectangular groove defined in the upper surface of the main load-bearing plate 9 and secured with a highly viscous waterproof silicone adhesive, ensuring a reliable fit and dust and water resistance, adapting to the frequent wiping and disinfection requirements of medical settings. The sensor is positioned in the center of the load-bearing area to obtain a more representative load response signal.

[0058] The signal output end of the pressure sensor 30 is connected to an integrated analog-to-digital conversion module, which digitizes the analog signal through a 24-bit high-precision ADC chip and inputs the digital signal to the control circuit board inside the mounting base 6 through an I²C or UART communication interface; the circuit board analyzes the collected pressure data in real time and can set an overload threshold. When the detected pressure exceeds the set range, the system automatically activates the alarm logic, drives the buzzer to emit an alarm sound, and simultaneously displays a red warning status through the LED light to remind medical staff to avoid overload use.

[0059] Both the reed switch 29 and the pressure sensor 30 are electrically connected to the control circuit board via shielded conductors. The wiring is uniformly routed into the circuit routing channels within the mounting base 6, ensuring overall electrical safety and ease of maintenance. The control system can implement integrated control logic for folding recognition and pressure monitoring through firmware programming. For example, if the device detects an incomplete deployment, it automatically disables pressure data collection and load alarms to avoid false alarms. If the platform is deployed and the load exceeds the warning limit, a secondary alarm can be activated in conjunction with time-delay logic, enhancing platform safety awareness and operational prompts.

[0060] In summary, this embodiment sets up a collaborative control mechanism of a reed switch and a thin-film pressure sensor, so that the folding state and load state of the device during operation can be accurately detected and fed back, realizing the structural intelligent perception and linkage control of the storage platform, greatly improving the safety, intelligence and user experience of the device, and is particularly suitable for medical transportation scenarios or surgical preparation processes with strict requirements on load management, providing solid technical support for the intelligent upgrade of modern hospital nursing equipment.

[0061] When the device is in use, ① the mounting plate 1 is firmly installed on the side frame of the transfer flat car to ensure that the socket 2 is fixedly connected to the mounting plate 1; ② the mounting seat 3 drives the plugging plate 19 to be inserted into the plugging sleeve 2, so that the locking column 14 is inserted into the socket of the plugging plate 19, and the elastic force provided by the locking spring 15 makes it automatically snap into the locking support 17 to achieve quick locking. If necessary, it can be unlocked by the locking handle 18 to achieve disassembly; ③ start the lifting motor 22 to drive the lifting screw 20 to rotate, so that the lifting seat 4 moves vertically up and down along the lifting guide rod 21 to the target height; ④ the electric push rod drives the sliding cooperation between the extension slide 23 and the extension guide sleeve 24 to push the mounting base 6 forward from the storage position until the T-shaped limit rib contacts the polyurethane buffer block in the extension guide sleeve 24 to achieve safety limit; ⑤ open the cover plate 7 on the top of the mounting base 6, and place the instruments or items to be stored in the drawer 11, or input the identity identification information into the system through the identity identification component 12 ⑥ If the platform unfolding function is needed, the first electric shaft is controlled to drive the main load-bearing plate 9 to flip to a horizontal state, and the second electric shaft and the third electric shaft are controlled to make the two intermediate plates 28 and the auxiliary load-bearing plate 10 unfold step by step to the set angle to form a complete working platform. During the platform unfolding process, the reed switch 29 is automatically disconnected; ⑦ After the operation is completed, the auxiliary load-bearing plate 10, the intermediate plate 28 and the main load-bearing plate 9 can be retracted in reverse order, so that the permanent magnet is close to the reed switch 29 again and closes, realizing the folding state recognition; ⑧ If the items placed on the platform exceed the set weight, the film pressure sensor 30 will sense it in real time and activate the buzzer alarm and LED red light prompt through the control circuit, prompting the user to make timely adjustments; ⑨ After the whole is folded, the mounting base 6 can be retracted to the front side of the lifting seat 4 through the electric push rod, and the circular positioning piece at the end of the electric push rod is locked by the limit sleeve 25 and the limit screw 26 to achieve anti-drop protection before transportation, thereby completing the use and storage process of the whole set of equipment.

[0062] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitute similar methods to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A multifunctional storage structure that can be folded in conjunction with a transfer flat car, characterized in that: include: A mounting plate (1) is fixedly mounted on one side of the transfer flat car frame; A socket (2) and a mounting seat (3), wherein the socket (2) is fixed on the mounting plate (1), and the mounting seat (3) is detachably plugged into the socket (2); A lifting seat (4) is vertically slidably mounted on the mounting seat (3); the lifting seat (4) is guided and supported by a lifting screw (20) and a lifting guide rod (21), and is driven by a lifting motor (22) to achieve height adjustment; The extension component (5) includes an extension slide (23) and an extension guide sleeve (24), wherein the extension slide (23) is horizontally fixed on the lifting seat (4), and the extension guide sleeve (24) is fixedly connected to the bottom of the mounting base (6). The extension guide sleeve (24) and the extension slide (23) are slidably connected to each other, thereby realizing horizontal telescopic movement of the mounting base (6) relative to the lifting seat (4); The mounting base (6) is a hollow box structure, with a cover plate (7) provided on the top, an identification component (12) and a drawer (11) provided on the front side, and a hidden hook (27) on the inner side of the cover plate (7); A linkage hinge structure (8) connects the mounting base (6), the main bearing plate (9) and the intermediate plate (28); the main bearing plate (9) is hingedly connected to at least one auxiliary bearing plate (10) in sequence through the intermediate plate (28); and the auxiliary bearing plates (10) can be relatively folded or unfolded; A folding state reed switch (29) is provided at the bottom of the mounting base (6) for detecting the storage state of the main bearing plate (9) and the auxiliary bearing plate (10) and providing a status prompt; A thin film pressure sensor (30) is provided on the main bearing plate (9) for detecting the load-bearing capacity of the platform and providing an overload warning; A slide rail structure in which a guide rail sleeve (31) and a guide rail core (32) cooperate with each other is provided at the bottom of the mounting base (6) for pulling and sliding the linkage hinge structure (8); A slot (13) is provided on one side of the mounting plate (1), and a locking column (14), a locking spring (15), a locking retaining ring (16), a locking support (17) and a locking handle (18) are installed in the slot (13) to achieve rapid locking and release of the mounting base (3) and the plug sleeve (2); A limiting sleeve (25) is provided on the outside of the mounting base (6) and cooperates with a limiting screw (26) to limit and fix the extension component (5) and the mounting base (6).

2. The multifunctional storage structure that can be folded in conjunction with a transfer flat car according to claim 1, characterized in that: The lifting screw (20) and the lifting guide rod (21) are arranged parallel to each other, the lifting screw (20) and the mounting seat (3) are rotatably connected, and the lifting guide rod (21) and the mounting seat (3) are fixedly connected; the lifting screw (20) is driven to rotate by the lifting motor (22) and is threadedly connected to the lifting seat (4), and the lifting guide rod (21) and the lifting seat (4) are slidably connected, thereby realizing the lifting seat (4) moving up and down along the lifting guide rod (21).

3. The multifunctional storage structure that can be folded in conjunction with a transfer flat car according to claim 1, characterized in that: The extension component (5) also includes an electric push rod, the cylinder end of the electric push rod is fixedly connected to the front side of the lifting seat (4) through a flange, and the piston rod end of the electric push rod is detachably connected to the mounting base (6); the axis of the electric push rod is parallel to the sliding direction of the extension slide (23), and is used to drive the mounting base (6) to perform linear telescopic movement along the extension slide (23); the end of the extension slide (23) is provided with a T-shaped limit rib, and the corresponding end of the extension guide sleeve (24) is provided with a polyurethane buffer block, and when the mounting base (6) moves to the maximum stroke position, the T-shaped limit rib abuts against the polyurethane buffer block.

4. The multifunctional storage structure that can be folded in conjunction with a transfer flat car according to claim 1, characterized in that: The locking support (17) is fixedly connected to the plug sleeve (2), the locking column (14) is slidably connected to the locking support (17), the locking spring (15) is sleeved on the outer periphery of the locking column (14) and the two ends are respectively fitted to the opposite end faces of the locking retaining ring (16) and the locking support (17), the tail end of the locking column (14) passes through the locking support (17) and is fixed with a locking handle (18), and the head end of the locking column (14) can be inserted into the socket of the plug plate (19); the plug plate (19) is fixedly connected to the mounting seat (3) and slidably cooperates with the slot (13) to achieve a detachable connection, so that the mounting seat (3) can be removed from the slot (13) and the plug sleeve (2) together with the plug plate (19).

5. The multifunctional storage structure that can be folded in conjunction with a transfer flat car according to claim 3, characterized in that: The piston rod end of the electric push rod is fixedly connected to a circular positioning piece, and the circular positioning piece can be inserted into the sleeve hole of the limiting sleeve (25); the limiting sleeve (25) is threadedly connected to a limiting screw (26), and when the limiting screw (26) is tightened, the end of the limiting screw (26) abuts against the outer side of the circular positioning piece, thereby locking the piston rod in the limiting sleeve (25) to prevent the piston rod from falling out; when the limiting screw (26) is loosened, the circular positioning piece can exit the limiting sleeve (25), thereby realizing a quick disassembly connection between the electric push rod and the mounting base (6).

6. The multifunctional storage structure foldable in conjunction with a transfer flat car according to claim 1, characterized in that: The identity recognition component (12) includes an NFC module and a QR code scanning module integrated on the mounting base (6), the NFC module is embedded in the left area of ​​the mounting base (6), and the QR code scanning module is embedded in the right area of ​​the mounting base (6); the NFC module is connected to the control circuit board in the mounting base (6) through an I2C interface, and the QR code scanning module is connected to the control circuit board through a USB interface; the mounting base (6) is provided with openings in areas corresponding to the NFC module and the QR code scanning module, and each is covered with a transparent sealing plate, and the control circuit board is provided with a three-color LED light and a buzzer for identity recognition status feedback, both of which are fixedly mounted on the internal bracket of the mounting base (6).

7. The multifunctional storage structure foldable in conjunction with a transfer flat car according to claim 6, characterized in that: The linkage hinge structure (8) is fixedly mounted on the top of the guide rail core (32), the guide rail core (32) is slidably fitted in the guide rail sleeve (31), and the guide rail sleeve (31) is fixedly connected to the bottom of the mounting base (6); The main bearing plate (9) is hingedly connected to the linkage hinge structure (8) via a first electric rotating shaft, the housing of the first electric rotating shaft is installed in the linkage hinge structure (8), and the output shaft of the first electric rotating shaft is connected to the main bearing plate (9); The left and right sides of the main bearing plate (9) are respectively hingedly connected to the two intermediate plates (28) via a second electric rotating shaft, the housing of the second electric rotating shaft is fixed to the bottom surface of the main bearing plate (9), and the output shaft of the second electric rotating shaft is respectively connected to the two intermediate plates (28); The ends of the two intermediate plates (28) are respectively hingedly connected to the secondary bearing plate (10) via a third electric rotating shaft, the housing of the third electric rotating shaft is fixed in the intermediate plate (28), and the output shaft of the third electric rotating shaft is connected to the secondary bearing plate (10), so that the secondary bearing plate (10) can be relatively folded and retracted under the main bearing plate (9); The first, second and third electric shafts all use a reduction motor with a self-locking function or a DC motor with an electromagnetic brake structure, which is installed at the connection part of each carrier plate to achieve electric control of unfolding and folding and maintain stable positioning in a static state; The cover plate (7) is hingedly connected via a fourth electric rotating shaft provided between the cover plate (7) and the top of the mounting base (6); the housing of the fourth electric rotating shaft is fixed to the top of the mounting base (6); and the output shaft of the fourth electric rotating shaft is connected to the cover plate (7); the cover plate (7) is linked to open or close after being identified by the identification component (12).

8. The multifunctional storage structure that can be folded in conjunction with a transfer flat car according to claim 6, characterized in that: The folding state reed switch (29) is a normally open reed switch, which is fixedly mounted on a detection bracket at the bottom of the mounting base (6); a permanent magnet is embedded in the folding end of the main carrier plate (9); when the main carrier plate (9) is folded to the storage position, the permanent magnet approaches the folding state reed switch (29) to close the normally open reed switch, thereby realizing folding state detection; The thin film pressure sensor (30) is arranged on the upper surface of the main carrier plate (9), and is correspondingly embedded in a groove provided on the upper surface of the main carrier plate (9), and is fixed and sealed by gluing; the signal output end of the thin film pressure sensor (30) is connected to the analog-to-digital conversion module, and is connected to the control circuit board inside the mounting base (6) through the communication interface; The control circuit board is electrically connected to the folding state reed switch (29) and the film pressure sensor (30) for detecting the folding state of the main load-bearing plate (9) and the auxiliary load-bearing plate (10) and determining and prompting the platform load-bearing state.

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