Equipment for vertically lifting and storing kindergarten bed

Abstract

The invention discloses equipment for vertically lifting and storing a kindergarten bed, which is characterized by comprising a rack provided with a vertical guide structure, a lifting assembly connected with the vertical guide structure in a sliding manner, a kindergarten bed locking mechanism and a control unit. The lifting assembly moves in the vertical direction by the driving module to bear the kindergarten bed, and when the lifting assembly moves to the target height, the kindergarten bed is locked on the kindergarten bed locking mechanism, so that the kindergarten bed is separated from the lifting assembly to form an independent fixed state. Compared with a traditional storage device of a multi-layer linkage or composite bearing structure, basic function modules such as a vertical guide structure and a lifting assembly are used, the transmission and supporting structure is greatly simplified, and the equipment complexity and the manufacturing cost are reduced. The control unit realizes one-button type storage operation of the kindergarten bed through an automatic lifting positioning and locking triggering mechanism, manual stacking and manual fixing processes are replaced, and the working intensity of teachers is remarkably relieved. The equipment provides a more economical and efficient solution for kindergarten space management on the premise of meeting safety and reliability through electromechanical cooperative control and structure optimization.

Description

Technical Field

[0001] The present invention relates to automatic vertical lifting stereoscopic storage equipment, which is an intelligent device for storing kindergarten beds, and therefore belongs to the field of automated mechanical equipment, and in particular refers to a vertical lifting device for storing kindergarten beds. Background Art

[0002] The daily storage of kindergarten beds requires frequent manual handling and stacking to save space. The traditional manual operation mode is difficult to meet the needs due to efficiency and safety defects. On the one hand, manual handling requires moving and stacking kindergarten beds one by one, which is labor-intensive and inefficient. The stacking height is limited by the human operating range (usually not more than 1.5 meters), resulting in insufficient vertical space utilization. At the same time, the kindergarten beds have poor stability after stacking and are prone to tipping accidents due to center of gravity shift. On the other hand, the existing Chinese invention patent CN109730483A (name: a kindergarten bed that can be vertically lifted and stored, publication date: 2019.05.10) and Chinese invention patent CN1 The technical solution proposed by 06986130A (name: Equipment for Automatic Vertical Lifting and Three-dimensional Storage of Kindergarten Beds, publication date: 2017.07.28) realizes automatic stacking through lifting motors, kindergarten bed locking mechanism drive motors, etc., but its technical architecture has problems such as complex structure and insufficient adaptability - the mechanical system relies on motors to work with multiple linkage devices, resulting in complex structure, high manufacturing costs and difficult maintenance. Most importantly, the equipment is only compatible with its customized kindergarten beds and is not compatible with mainstream kindergarten folding beds on the market, which makes it impossible for the kindergarten to discard existing kindergarten beds and re-purchase them, further increasing the cost of transformation and restricting the popularization of technology. Therefore, the current field of lifting and storage of kindergarten children's beds urgently needs to achieve the goal of safe, efficient and low-cost space management through three core breakthroughs: simplifying the electromechanical structure, improving the adaptability of multiple bed types, and optimizing cost controllability. Summary of the invention

[0003] The present invention proposes the following innovative solutions to the current storage problems of kindergarten beds mentioned above: First, through the automation of vertical storage equipment, the core defects of the traditional manual operation mode, such as high labor intensity, low efficiency, insufficient space utilization and significant stacking safety hazards, are overcome; Second, the popularization barriers of existing automated equipment, such as high system complexity caused by multi-motor redundant architecture, poor compatibility with mainstream folding beds, surging equipment modification costs and difficult maintenance, are improved. Through the integrated innovation of reasonable design of electromechanical transmission system, adaptation to bed compatible structure and modular vertical lifting technology, while ensuring operational safety and space management efficiency, the equipment manufacturing cost and maintenance complexity are effectively reduced, thereby forming an optimized storage solution for kindergarten beds with universal advantages.

[0004] To achieve the above technical objectives, in the first aspect, the present invention provides a device for vertically lifting and storing kindergarten beds, comprising: a frame, which is provided with a vertical guide structure, constituting the main frame of the device and providing guidance for the lifting movement; a lifting component, which slides with the vertical guide structure, and is used to carry the bed and reciprocate in the vertical direction; a drive module, which is connected to the lifting component and provides power to drive it to lift and lower; a locking mechanism, which is arranged on both sides of the frame, and is used to automatically lock or release the bed position when the bed is lifted to a preset height; a control unit, which receives user instructions and coordinates the start and stop of the drive module, and synchronously controls the locking / releasing action of the locking mechanism to ensure the synchronization of the lifting process and state switching.

[0005] Furthermore, the outer side of the frame is covered with a protective shell, and its operating area completely covers the frame and the lifting assembly; a bed entrance is opened at the bottom front of the protective shell, and anti-pinching movable baffles are set on both sides of the entrance; the vertical guide structure is specifically composed of slide rails on both sides of the frame, and the slide rails and the sliding parts of the lifting assembly form a sliding pair to ensure the vertical accuracy of the operating trajectory.

[0006] In the preferred embodiment, the lifting assembly includes at least one pair of parallel load-bearing arms, which are fixed to both sides of the sliding frame through a rigid connection. The sliding parts arranged on the outside of the sliding frame form a sliding connection with the slide rail, and vertical lifting is achieved under the action of the driving module. This structural design significantly improves the stability of the bed load.

[0007] In a further optimization scheme, the bearing surface of the carrying arm is covered with an anti-slip layer, which is made of a soft elastic material with buffering properties and has a concave-convex texture on the surface. This design has a dual function: it prevents the bed from slipping by increasing the friction coefficient, and at the same time avoids scratches or wear caused by direct contact between the carrying arm and the surface of the bed.

[0008] The preferred implementation of the drive module includes a motor, a driving wheel and a flexible traction component; the motor drives the driving wheel to rotate, one end of the flexible traction component is connected to the driving wheel, and the other end is connected to the sliding frame, forming an efficient power transmission system. This design reduces operating noise and improves energy utilization efficiency.

[0009] The locking mechanism includes a load-bearing support component and a trigger component, and has two implementation methods: a purely mechanical linkage structure: automatically triggering the bed locking / release operation according to the height status of the lifting component; an electronic drive structure: receiving the control unit signal through the electronic drive structure to perform the bed locking / release operation.

[0010] In the pure mechanical linkage structure scheme, the trigger assembly is composed of a sliding push rod and a linkage shaft. When the lifting assembly rises to a preset locking height, the sliding push rod remains in place, and the load-bearing support components are lifted up and flipped up by the rising bed. After the bed continues to rise, it separates from the bed and resets and locks the bed by its own gravity. When the lifting assembly rises to a preset release height, the sliding push rod is lifted up and temporarily locked by the lifting assembly, and the load-bearing support components are driven to flip up by the linkage shaft. At the same time, the rest of the bed is reset and locked after the bottom bed drops to the preset release height.

[0011] In the electronic drive structure solution, the trigger component adopts a combination of an electric push rod and a linkage shaft. When the position detection module feeds back that the lifting component has reached the preset height, the control unit drives the electric push rod through the linkage shaft to drive the load-bearing support component to flip up or reset, thereby realizing precise electronic bed locking / release control.

[0012] The control unit integrates a control switch, a controller and a position detection module. The control switch provides bed stacking / bed unloading mode switching and equipment start and stop functions. The position detection module monitors the lifting height. The controller synchronously controls the action of the drive module and the locking mechanism according to the signal feedback from the position detection module to ensure accurate matching of the operation sequence.

[0013] In the further optimization plan, a bed positioning module is provided at the bottom of the frame, including: a guide component: guiding the bed to be pushed in along a preset direction to constrain its horizontal displacement; a limit component: limiting the pushing depth of the bed; a detection component: judging whether the bed is fully in place and sending a signal to the control unit. Only when the detection component confirms that the bed is fully in place, the equipment is allowed to start the lifting function, otherwise the lifting operation is automatically locked to prevent misoperation.

[0014] The core innovations of the present invention are reflected in the following three aspects: (1) Single motor and pure mechanical linkage structure design: a single motor drives the lifting assembly to simultaneously link the sliding push rod, linkage shaft and other pure mechanical structures, replacing the multi-motor collaborative system, and synchronously controls the lifting and locking / release through mechanical self-locking, greatly simplifying the transmission chain, reducing manufacturing costs and maintenance complexity; (2) Universal bed bottom embedded load-bearing arm structure: a rigid non-slip load-bearing arm designed based on the standardized space at the bottom of a kindergarten bed, which is embedded in and matches the existing bed without the need for bed modification or replacement, significantly reducing the threshold for equipment deployment; (3) Full-chain active safety protection: integrated anti-pinch baffle, full-cover protective shell, bed positioning detection and dual-mode locking mechanism, forming a three-level protection of "entrance blocking-operation monitoring-terminal locking", actively avoiding the risks of pinching, falling and misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are simplified schematic diagrams, which are only used to illustrate the core structure and working principle of the present invention, and the size, proportion and connection relationship of each component can be adjusted according to actual needs.

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention, which includes a protective housing (1), a bed entrance (101), an anti-pinch movable baffle (102), a control switch (103), and a complete appearance of the display device in a stored state.

[0017] Figure 2 The invention is a three-dimensional schematic diagram of the structure of a frame, a lifting assembly, a driving module, a locking mechanism and a bed positioning module, and focuses on showing the assembly relationship of the frame (2), a bearing arm (301), a sliding frame (302), a grooved wheel sliding member (303), a channel steel slide rail (201), a steel wire rope (401), a driving wheel (402) and a self-locking reduction motor (403), reflecting the driving transmission path of the lifting assembly and the driving module.

[0018] Figure 3 This is a partial enlarged view of the contact surface between the anti-skid layer of the load-bearing arm and the bed body, clearly showing the concave-convex texture structure of the anti-skid layer (304).

[0019] Figure 4 It is a partial enlarged view of the purely mechanical linkage locking mechanism, focusing on the assembly relationship of the lifting linkage rod (305), the sliding push rod (501), the return spring (5011), the linkage shaft lever (5012), the permanent magnetic suction block (5013), the linkage shaft (502), and the load-bearing support component (503), as well as the angle and position status of each component at two preset heights of H1 and H2.

[0020] Figure 5 The invention is a control logic block diagram of the locking mechanism of the electronic drive structure, which is a trigger mechanism of the locking action in the electronic mode through a photoelectric sensor (901), an electric push rod (504), a linkage shaft (502), a load-bearing support component (503).

[0021] Figure 6 It is a top view of the structure of the bed positioning module, marking the layout of the guide component (1001), the limit component (1002) and the photoelectric sensor (1003), showing the coordinated effect of horizontal correction and depth limitation when the bed is pushed in.

[0022] The above drawings and descriptions, combined with specific implementations, clearly illustrate the structural features, working principles and control logic of the present invention. Those skilled in the art can understand the technical solution based on the drawings and implement or improve it accordingly. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. This embodiment is only used to explain the present invention but not to limit the protection scope of the present invention.

[0024] The overall structure of the equipment is implemented as follows Figure 2 , Figure 4 , Figure 5 As shown, the device for vertically lifting and storing kindergarten beds comprises a frame (2), a lifting assembly (3), a drive module (4), and a locking mechanism (5); the frame (2): vertical channel steel slide rails (201) are provided on both sides, and the surface of the channel steel slide rails is polished to reduce friction resistance; the overall frame of the device and the matching component structure are welded with high-strength steel profiles; the lifting assembly (3): a sliding pair is formed by the groove wheel sliding members (303) on both sides of the sliding frame (302) and the channel steel slide rails (201), and a pair of parallel bearing arms (301) are fixed at the bottom of the sliding frame, and the distance between the bearing arms is set in the range of 800-1000mm according to the standard width of the kindergarten bed body. When the locking mechanism (5) adopts a pure machine When the mechanical linkage structure is designed, the position of the pure mechanical linkage structure can be controlled by the lifting linkage rods (305) on both sides of the sliding frame (302) to achieve locking and releasing of the bed body; a driving module (4): installed on the top of the frame, including a motor using a self-locking reduction motor (403), a driving wheel (402) and a flexible traction component using a wire rope (401), the self-locking reduction motor drives the driving wheel to rotate, one end of the wire rope is fixed to the driving wheel, and the other end is connected to the top of the sliding frame (302); a locking mechanism (5): symmetrically arranged on both sides of the frame, including a load-bearing support component (503) and a trigger component, and one of a sliding push rod (501) or an electric push rod (504) can be selected as a transmission force.

[0025] Implementation methods of safety protection structure, protective shell and anti-pinch finger design, such as Figure 1 , Figure 2 As shown: the protective shell (1) is made of birch multilayer board, covers the operating area of ​​the frame (2) and the lifting component (3), and has a bed entrance (101) at the bottom of the front; the anti-pinch movable baffle (102) is symmetrically installed on both sides of the bed entrance (101), cooperates with the upper fixed baffle to form an anti-dumping structure, and realizes vertical sliding through a high-precision linear slide rail; if the bed encounters resistance during the rising process, the anti-pinch movable baffle (102) can be synchronously lifted to the same height as the bed, forming a continuous protective surface to eliminate the risk of pinching.

[0026] The structure of the load-bearing arm and the anti-slip layer is as follows Figure 3As shown: the bearing arm (301) is welded from high-strength steel profiles, and the surface is covered with a 5 mm thick silicone anti-skid layer (304). The surface of the anti-skid layer is pressed with a diamond-shaped raised texture (raised height ≈ 1.5 mm) to increase the friction with the bottom of the bed and prevent the bed from being scratched; adaptability design: the bearing arm is 40 mm thick, and the embedded depth is 80% of the reserved space at the bottom of the bed, ensuring that it is compatible with kindergarten beds of different brands.

[0027] Driver module: Figure 2 As shown: Motor assembly: the self-locking reduction motor (403) is a 1100W single-phase self-locking reduction motor with a speed ratio of 45, achieving a lifting speed of 0.16m / s; the motor output shaft is coaxially connected to the driving wheel (402), and drives the wire rope transmission when switching between forward and reverse rotations; Transmission assembly: the wire rope (401) is a multi-strand steel strand, and its two ends are respectively fixed to the rope groove of the driving wheel (402) and the top of the sliding frame (302), forming a traction structure to realize the lifting movement of the bearing arm.

[0028] Locking mechanism: Embodiment 1 (pure mechanical linkage structure): Figure 4 As shown, when the lifting assembly (3) rises to a height H1, its lifting linkage rod (305) has not yet reached the trigger position of the lifting sliding push rod (501). During the lifting process of the bed, the load-bearing support component (503) is lifted up by the side baffle of the bed and turned up from the initial 0° to 80°. When the bed continues to move up and loses contact with the load-bearing support component (503), the load-bearing support component (503) automatically returns to the initial state of 0° under the action of its own weight. At this time, the lifting component (3) performs a descending action, so that the bed body is stably seated on the load-bearing support component (503) after being reset. The lifting component (3) continues to descend to the initial position before ascending, thus completing the single bed stacking locking. This process can be repeated to realize the automatic stacking and storage of the bed body. When the lifting component (3) rises to the set height H2, its lifting linkage rod (305) lifts the sliding push rod (501) to the top position. At this time, the sliding push rod (501) is turned up to an 85° position through the wire rope pulling linkage shaft lever (5012), driving the linkage shaft (502) to drive the load-bearing support component (503) to synchronously complete the 85° upward turning. Then the lifting component (3) performs a descending action. Under the action of magnetic attraction, the sliding push rod (501) is firmly adsorbed by the permanent magnetic attraction block (5013) and remains in place, so that the load-bearing support component (503) is continuously locked in the 85° flipped state. During the stable descent of the bed body supported by the lifting assembly (3), when the lifting linkage rod (305) contacts the reset spring (5011), the sliding push rod (501) is separated from the permanent magnetic attraction block, and at the same time, the linkage shaft lever (5012), the linkage shaft (502) and the load-bearing support component (503) are reset to 0° by gravity and lock the gap of the upper bed body. This linkage process realizes the precise release of the bottom bed body while maintaining the locked state of the remaining bed bodies. Embodiment 2 (electronic drive structure): Figure 5 As shown: an electric push rod (504): installed on the side wall of the frame, the push rod stroke is 150 mm, and is controlled by a controller (903); linkage control: when the photoelectric sensor (901) detects that the load-bearing arm reaches a preset height, the controller (903) triggers the electric push rod (504) to extend and retract, and controls the lifting and lowering of the load-bearing support component (503) through the linkage shaft (502) to achieve locking and releasing of the bed body.

[0029] Bed positioning module Figure 6 As shown: guide assembly (1001): composed of two guide roller groups, guiding the bed to be pushed in a straight line, with an offset of ≤5mm; limit assembly (1002): a stopper set on the inner side of the entrance, limiting the pushing depth of the bed to 95% of the length of the bearing arm; photoelectric sensor (1003), when the bed is fully in place, the sensor sends a "lifting allowed" signal to the control unit.

[0030] Control unit such as Figure 1 , Figure 2 , Figure 4 , Figure 5As shown: Control switch (103): It is arranged on the side of the protective housing (1) and supports switching between "bed stacking mode" and "bed removal mode". After switching the mode, clicking the start button can execute the operation task of the relevant mode. If an emergency situation requires emergency stopping of the equipment, the emergency stop button is pressed, and the drive module and the locking mechanism stop running; Position detection module: When the locking mechanism is a purely mechanical linkage structure, in the bed stacking mode, the travel switch (902) circuit is switched to a normally closed state by the mode switching button of the control switch (103). When the lifting component (3) rises to the height H1, When the travel switch (902) is touched, the controller (903) controls the lifting component (3) to descend to the initial position before ascending after receiving the closing signal of the travel switch (902); in the bed removal mode, the travel switch (902) circuit is switched to a normally open state by the mode switching button of the control switch (103); when the lifting component (3) ascends to H1, touching the travel switch (902) is invalid, and the lifting component (3) continues to ascend to the height H2 and touches the travel switch (904); the controller (903) controls the lifting component (3) to descend to the initial position before ascending after receiving the closing signal of the travel switch (904). The lowering assembly (3) descends to an initial position before the bed is raised; when the locking mechanism is an electronically driven structure, in the bed stacking mode, after the photoelectric sensor (901) detects that the bed body has risen to a specified position, the photoelectric sensor sends a locking signal to the controller (903), and the controller (903) triggers the electric push rod (504) to rise, and after the bed body rises to the locking position, the controller (903) triggers the electric push rod (504) to descend, and at the same time, the lifting assembly (3) carries the bed body down and completes the locking of the bed body; in the bed removal mode, the photoelectric sensor (901) detects that the bed body has risen to a specified position. After the bed body rises to the specified position, the photoelectric sensor sends a locking signal to the controller (903), and the controller (903) triggers the electric push rod (504) to rise. When the bed body descends and passes through the locking position, the photoelectric sensor (901) monitors the displacement change and feeds back a signal to the controller (903), and the controller (903) then triggers the electric push rod (504) to descend, thereby achieving accurate release of the bottom bed body and maintaining the locking state of the rest of the bed body. The controller (903) can be a single chip microcomputer (MCU) or a programmable logic controller (PLC).

[0031] The complete working process of a device for vertically lifting and storing kindergarten beds described in the present invention is as follows: after an operator selects "bed stacking mode" or "bed removal mode" through a control switch (103), if it is the bed stacking mode, the bed body is pushed in from the bed body entrance (101) of the protective housing (1), guided by the guide roller group of the guide assembly (1001) for linear movement, the limit assembly (1002) limits the pushing depth, and the photoelectric sensor (1003) sends a signal to the controller (903) after detecting that the bed body is completely in place, and the controller (903) starts the self-locking reduction motor (403) of the drive module (4) to drive the driving wheel (402) to rotate, and the sliding frame (302) of the lifting assembly (3) is pulled vertically up along the channel steel slide rail (201) of the frame (2) by the steel wire rope (401), and the diamond-shaped raised texture of the silicone anti-skid layer (304) on the surface of the load-bearing arm (301) increases the friction to stabilize the bed body and avoid scratches; when the lifting assembly (3) rises to At the height H1, if the locking mechanism (5) is a purely mechanical linkage structure, the bed body lifts up the load-bearing support component (503) to make it flip to 80 degrees, and after the contact is broken, the load-bearing support component (503) automatically resets to 0 degrees, and the lifting component (3) descends to make the bed body sit on the load-bearing support component (503) to complete a single locking, and if multiple layers of stacking are required, the previous operation is repeated; if the locking mechanism (5) is an electronic drive structure, after the photoelectric sensor (901) detects that the bed body has reached a preset height, the controller (903) controls the electric push rod (504) to extend and retract and drives the load-bearing support component (503) to flip and lock through the linkage shaft (502); during the lifting process, if the hand-pinch prevention movable baffle (102) encounters resistance, it can be lifted synchronously with the bed body to form a continuous protective surface; if it is a bed removal mode, and the locking mechanism (5) is a purely mechanical linkage structure, when the lifting component (3) rises to the height H2, the lifting linkage rod (305) lifts the sliding push rod (501) to the top position. At this time, the sliding push rod (501) is lifted to the 85° position by pulling the linkage shaft lever (5012) through the wire rope, driving the linkage shaft (502) to drive the load-bearing support component (503) to synchronously complete the 85° flip.Then, the lifting assembly (3) performs a descending action. Under the action of magnetic attraction, the sliding push rod (501) is firmly adsorbed by the permanent magnetic attraction block (5013) and remains in place, so that the load-bearing support component (503) is continuously locked in an 85° flipped state. During the stable descent of the bed body carried by the lifting assembly (3), when the lifting linkage rod (305) contacts the reset spring (5011), the sliding push rod (501) is separated from the permanent magnetic attraction block, and at the same time, the linkage shaft lever (5012), the linkage shaft (502) and the load-bearing support component (503) are reset to 0° by the action of self-gravity. This linkage process realizes the bottom bed. The bottom bed is precisely released while the rest of the bed is kept locked; if the locking mechanism (5) is an electronically driven structure, the photoelectric sensor (901) monitors the displacement change and triggers the electric push rod (504) to move up and down to achieve precise release of the bottom bed while the rest of the bed is kept locked; the carrying arm (301) carries the bed down to the initial position and is then manually pulled out, releasing the bed layer by layer in a cyclic operation; the emergency stop button can cut off the power supply, the anti-pinch movable baffle (102) and the fixed baffle form an anti-dumping structure, and the carrying arm (301) is embedded to a depth that matches the bottom space of the bed, thereby finally achieving automatic storage and release of the bed.

[0032] The above embodiments are merely exemplary descriptions, and those skilled in the art may make adaptive adjustments based on the principles of the present invention, and such adjustments still fall within the protection scope of the present invention.

Claims

1. A device for vertically lifting and storing kindergarten beds, characterized in that: It includes a frame with a vertical guide structure; a lifting component slidably matched with the vertical guide structure and used to support the bed; a driving module connected to the lifting component and used to drive it to move in the vertical direction; a locking mechanism arranged on the frame and used to lock or release the bed in a preset position under different working modes; a control unit used to control the start and stop of the driving module according to user instructions, and synchronously control the locking mechanism to perform bed locking or release operations.

2. The device according to claim 1, characterized in that A protective shell is arranged on the outside of the frame, the protective shell covers the frame, a bed entrance is arranged at the bottom of the front side of the protective shell, and anti-hand pinching movable baffles are arranged on both sides of the bed entrance; the vertical guide structure includes slide rails arranged on both sides of the frame, and the slide rails form a sliding pair with the sliding parts of the lifting assembly.

3. The device according to claim 2, characterized in that The lifting assembly includes at least one pair of parallel bearing arms, which are fixed to both sides of the sliding frame through a rigid connection; the sliding member is provided on the outer side of the sliding frame, the sliding member is slidably connected to the slide rail, and is driven by the driving module to achieve vertical lifting.

4. The device according to claim 3, characterized in that The bearing surface of the bearing arm is covered with an anti-skid layer, which is made of a soft elastic material with buffering properties and has a concave-convex texture on the surface; the anti-skid layer is used to increase the friction with the contact surface with the bed body and prevent the bearing arm from directly contacting the surface of the bed body to cause scratches or wear.

5. The device according to claim 3, characterized in that The driving module includes a motor, a driving wheel and a flexible traction component; the motor drives the driving wheel to rotate, one end of the flexible traction component is connected to the driving wheel, and the other end is connected to the sliding frame.

6. The device according to claim 1, characterized in that The locking mechanism includes a load-bearing support component and a trigger component; the trigger component is a purely mechanical linkage structure or an electronic drive structure; when the trigger component is a purely mechanical linkage structure, it links the load-bearing support component to lock or release the bed according to the height state of the lifting component; when the trigger component is an electronic drive structure, it receives the signal fed back by the control unit according to the height of the lifting component, and drives the load-bearing support component to lock or release the bed.

7. The device according to claim 6, characterized in that The purely mechanical linkage structure is a component of the trigger component, including a sliding push rod and a linkage shaft; when the lifting component rises to a preset locking height, the sliding push rod remains in place, the load-bearing support component is lifted up and flipped up by the bed body during the rise, and is separated from the bed body after the bed body continues to rise and is reset and locked by its own gravity; when the lifting component rises to a preset release height, the sliding push rod is lifted up and temporarily locked by the lifting component, and the load-bearing support component is driven to flip up by the linkage shaft, and the rest of the bed body is reset and locked after the bottom bed body descends to the preset release height.

8. The device according to claim 6, characterized in that The electronic drive structure is a component of the trigger component, including an electric push rod and a linkage shaft; when the lifting component reaches a preset height, the position detection module of the control unit feeds back a signal to the controller, and the controller controls the electric push rod to drive the load-bearing support component to flip up or reset through the linkage shaft to lock or release the bed.

9. The device according to claim 6, characterized in that The control unit includes a control switch, a controller and a position detection module; the control switch is used to switch the bed stacking / bed unloading mode and control the start and stop of the equipment; the position detection module is used to monitor the operating height of the lifting assembly. When the height reaches a preset threshold, the controller controls the start and stop of the driving module and triggers the locking mechanism to perform corresponding actions.

10. The device according to claim 1, characterized in that A bed positioning module is provided at the bottom of the frame, and the bed positioning module includes a guide component for guiding the bed to be pushed in along a preset direction and constraining its horizontal deviation; a limit component for limiting the pushing depth of the bed; a detection component for judging whether the bed is fully in place and sending a signal to the control unit; when the detection component determines that the bed is fully in place, a lifting and lowering signal is triggered, otherwise the lifting function of the equipment is locked.

Images