Bamboo-wood cabinet
By incorporating magnetic fixation, a negative pressure zone, and an air pump system into the bamboo and wood storage cabinet, the problem of item positioning and structural protection in dynamic environments is solved, achieving precise positioning and immediate protection of the shelves, and improving the cabinet's shock resistance and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LIANCHENG FENGHAI BAMBOO & WOOD IND CO LTD
- Filing Date
- 2026-01-08
- Publication Date
- 2026-04-14
AI Technical Summary
Existing bamboo and wood storage cabinets cannot effectively coordinate item positioning and structural protection in dynamic environments. This can lead to a chain reaction of loose shelves and slipping items, causing the cabinet structure to tip over, resulting in a high probability of property damage and safety hazards.
The storage cabinet is made of bamboo and wood, and the side panels are fixed by magnetic attraction. The shelf installation structure includes positioning components and locking components. Combined with a negative pressure zone and an air pump system, the monitoring module collects vibration and tilt data in real time, and the control unit controls the air pump to generate negative pressure for fixation and inflation protection, so as to achieve precise positioning and immediate protection of the shelves.
Significantly improves the overall rigidity of the cabinet, effectively inhibits the slippage of items, provides immediate protection, reduces property loss and safety hazards, and is suitable for earthquake-prone areas or places with high pedestrian traffic, meeting the dynamic safety needs of home storage, commercial display and office storage scenarios.
Smart Images

Figure CN121465352B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a bamboo and wood storage cabinet, belonging to the field of storage cabinet technology. Background Technology
[0002] Bamboo and wood storage cabinets are widely used in home storage, commercial display, and office storage scenarios due to their environmental friendliness, aesthetics, and lightweight characteristics. In dynamic environments (such as earthquake-prone areas or places with high pedestrian traffic), users have higher requirements for cabinet stability, item security, and impact protection.
[0003] The traditional shelves of the current mainstream bamboo and wood storage cabinets rely on simple slots or bolts for installation. When adjusting the height, they are prone to loosening due to positioning deviation, which weakens the overall rigidity of the cabinet.
[0004] The lack of active securing design on the shelf surface allows items to easily slip under slight vibrations, exacerbating shelf load imbalance. When external vibrations or tilting exceed critical values (such as earthquakes or strong impacts), the loosened shelves and slipped items create a chain reaction, causing structural overturning of the cabinet. Existing equipment lacks real-time response settings and cannot provide immediate protection for items. This results in existing bamboo and wood storage cabinets failing to coordinate item positioning and structural protection under dynamic loads, leading to a high probability of property damage and safety hazards. Summary of the Invention
[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a bamboo and wood storage cabinet to solve the problems of the existing technology.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:
[0007] A bamboo and wood storage cabinet includes: a frame made of bamboo and wood, multiple shelves installed in the frame with adjustable height, side panels fixed on both sides of the frame, several negative pressure zones set on the upper surface of the shelves, an air pump communicating with the negative pressure zones, and a control unit.
[0008] The side panel is fixed to the side of the frame by magnetic attraction; the installation structure of the shelf includes a positioning component and a locking component. The positioning component can be inserted into the side panel, pass through the frame and is located below the shelf. After the shelf moves down, it abuts against the positioning component and is fixed. The locking component passes through the side panel and the frame and is inserted into the side of the shelf to lock it.
[0009] Multiple negative pressure zones are connected in series via negative pressure pipes. The negative pressure pipes are connected to the air inlet pipe of the air pump via the adapter pipe in the locking assembly. When an item is placed above the negative pressure zone, the air pump draws air to create negative pressure adsorption and fixation on the bottom of the item.
[0010] An inflation assembly is embedded in the inner side of the side panel, the air outlet pipe of the air pump is connected to the inflation assembly, and an exhaust assembly is provided on the top of the frame, which is connected to the inflation assembly.
[0011] The frame is equipped with a monitoring module, which is electrically connected to the control unit. When the frame vibration reaches a first threshold or the tilt reaches a second threshold, the control unit controls the air pump to work, so that the negative pressure zone generates a strong negative pressure on the bottom of the item for positioning and fixation. At the same time, the control unit controls the inflation component to inflate and expand to form a protective cover for the outside of the item. The exhaust component is used to discharge excess gas when the air pressure of the inflation component reaches the threshold.
[0012] As a further improvement, the negative pressure zone includes a first negative pressure ring located in the inner ring and a second negative pressure ring located in the outer ring. The diameter of the first negative pressure ring is smaller than that of the second negative pressure ring. Adsorption ports are provided above both the first and second negative pressure rings. The negative pressure zone also includes an opening assembly for controlling the opening and closing of the adsorption ports, a first sensor disposed above the first negative pressure ring, and a second sensor disposed above the second negative pressure ring. The first and second sensors are electrically connected to the control unit.
[0013] When the item only covers the first negative pressure ring, the unsealing component opens only the suction port of the first negative pressure ring according to the feedback of the first sensor; when the item covers both the first and second negative pressure rings, the unsealing component opens both the suction ports of the first and second negative pressure rings simultaneously according to the feedback of the second sensor.
[0014] As a further improvement, the unsealing assembly includes a micro motor installed in the layer plate and a disc fixed on the output shaft of the micro motor. The disc is provided with a first sealing piece that matches the adsorption port of the first negative pressure ring and a second sealing piece that matches the adsorption port of the second negative pressure ring. Two sets of second sealing pieces are provided between two adjacent sets of first sealing pieces.
[0015] The micro motor is electrically connected to the control unit. When only the first negative pressure ring needs to be activated, the disc rotates counterclockwise by a first preset angle. When both the first and second negative pressure rings need to be activated simultaneously, the disc rotates clockwise by a second preset angle. When the first negative pressure ring is already activated and the second negative pressure ring needs to be activated as well, the disc rotates clockwise by a third preset angle, wherein the third preset angle is the sum of the first preset angle and the second preset angle.
[0016] As a further improvement, the positioning component includes a rod and a latch hinged to the outer end of the rod. A conductive terminal is installed at the inner end of the rod, and a first magnetic ring is installed on the lower side of the latch. A protrusion is provided at the center of the first magnetic ring, and the protrusion is electrically connected to the conductive terminal through a wire.
[0017] The side plate is provided with a conductive through hole, and a conductive sheet is provided inside the conductive through hole. An opening and closing piece is hinged to the inner side of the conductive through hole. The opening and closing piece closes the conductive through hole under the action of a torsion spring. The opening and closing piece is made of metal.
[0018] When the insert is inserted, the protrusion pushes the opening and closing plate to open, and the conductive plate is electrically connected to the protrusion and the conductive terminal to supply power to the micro motor. At the same time, the opened opening and closing plate is magnetically attracted and attached to the first magnetic ring.
[0019] As a further improvement, the adapter includes a first cannula and a second cannula connected to the outer end of the first cannula. The first cannula is a rigid metal tube, and the second cannula is a flexible metal tube. A second magnetic ring is installed on the outer ring of the second cannula.
[0020] The side plate is provided with an air passage hole, and an air extraction tube head is provided inside the air passage hole. An opening and closing plate is hinged to the inner side of the air passage hole. The opening and closing plate closes the air passage hole under the action of a torsion spring. The opening and closing plate is made of metal.
[0021] When the first cannula is inserted, the second cannula pushes the opening and closing plate to open and connect with the air extraction tube head, so that the air inlet pipe of the air pump is connected with the negative pressure pipe, and at the same time the opened opening and closing plate magnetically adheres to the second magnetic ring.
[0022] As a further improvement, the inflation assembly includes an inflation bag embedded in the inner side of the side plate, an inflation pipe connecting the inflation bag and the air pump outlet pipe, and also includes a first solenoid valve and an auxiliary pipe connected to the first solenoid valve. The auxiliary pipe is connected to the air pump inlet pipe through the first solenoid valve.
[0023] As a further improvement, the exhaust assembly includes a second solenoid valve and an exhaust head, the second solenoid valve being electrically connected to the control unit for opening the exhaust when the air pressure in the inflatable bag reaches a threshold.
[0024] As a further improvement, the exhaust port of the exhaust head is equipped with a whistle tube, which emits an audible warning when gas is discharged through the whistle tube.
[0025] As a further improvement, the monitoring module includes a vibration sensor and a tilt sensor, which are used to monitor the vibration and tilt of the frame, respectively.
[0026] As a further improvement, the first preset angle is equal to the second preset angle, and the third preset angle is twice the first preset angle.
[0027] The beneficial effects of this invention are:
[0028] This invention addresses the problem of existing bamboo and wooden storage cabinets failing to coordinate item positioning and structural protection under dynamic loads, leading to a high probability of property loss and safety hazards. First, the shelf installation structure employs a precise combination of positioning and locking components. The positioning component vertically penetrates the frame and inserts into the side panel; after the shelf moves down, it forms a rigid contact with the positioning component, eliminating positioning deviations found in traditional slot or bolt installations.
[0029] The locking assembly extends further through the side panel and frame, inserting into the side of the shelf to achieve radial locking, ensuring that the shelf has no risk of loosening under dynamic loads. This significantly improves the overall rigidity of the cabinet and avoids load imbalance caused by shelf misalignment.
[0030] Secondly, the negative pressure zones distributed on the upper surface of the shelf are connected in series via negative pressure pipes, and then connected to the air pump inlet pipe through the adapter pipe built into the locking assembly. When an item is placed above the negative pressure zone, when the vibration or tilt threshold is reached, the air pump draws air to form a local negative pressure, which generates an adsorption force on the bottom of the item, effectively suppressing the item from slipping under micro-vibration and blocking the cause of load imbalance from the source.
[0031] Third, the integrated monitoring module inside the frame collects vibration and tilt data in real time. When the vibration intensity exceeds the first threshold or the tilt angle exceeds the second threshold, the control unit immediately starts the air pump. At this time, the air pump performs a dual task: on the one hand, it enhances the suction force of the negative pressure zone to fix the item with strong negative pressure positioning.
[0032] Fourth, on the other hand, air is supplied to the inflatable components embedded in the side panels through the air outlet pipe, causing them to expand rapidly and form a flexible covering layer, providing cushioning protection for the items. The exhaust component at the top of the shelf automatically releases pressure when the air pressure of the inflatable components reaches a safe threshold, preventing the risk of over-inflation. This multi-system linkage setting immediately interrupts the chain reaction of loose shelves and sliding items when external vibration or tilting exceeds a critical state, fundamentally preventing structural overturning of the cabinet.
[0033] When adjusting the shelf height, users simply move the shelf down along the positioning component to the preset position, and the locking component automatically inserts into the side of the shelf to secure it, requiring no tools and ensuring installation accuracy and reliable repeatability. During normal use, the negative pressure adsorption function is not activated, achieving static fixation of items. When the monitoring module detects an environmental anomaly, the system automatically switches to protection mode within milliseconds, requiring no manual intervention from the user. During disaster recovery, the control unit can instruct the exhaust component to release gas from the inflation component for rapid reset.
[0034] The positioning component adopts an integrated structure of insert rod, hinged fastener and conductive terminal, and works in conjunction with the magnetic attraction and bonding mechanism of the metal opening and closing piece in the conductive through hole of the side plate and the first magnetic ring. The opening and closing piece is opened by the protrusion and an electrical connection is established. When the shelf moves down and abuts, mechanical locking and micro motor power supply are realized at the same time. This eliminates the positioning deviation caused by traditional slot installation, significantly enhances the vertical load-bearing rigidity of the cabinet, avoids the initial instability caused by the loosening of the shelf, and improves the structural reliability of the cabinet under dynamic load.
[0035] By connecting the locking assembly with the rigid metal first insertion tube and the flexible second insertion tube, the metal opening and closing plate inside the air passage is opened through the second insertion tube, so that the opening and closing plate and the second magnetic ring are magnetically attracted to form an airtight connection. This automatically connects the air pump and the negative pressure zone pipeline during the transverse anchoring of the shelf, avoiding sealing leaks caused by manual intervention, ensuring the continuous and stable operation of the negative pressure system, effectively suppressing the risk of slippage of items in a micro-vibration environment, and extending the service life of the negative pressure adsorption assembly.
[0036] By dividing the negative pressure zone into an inner first negative pressure ring and an outer second negative pressure ring, and in conjunction with a first sensor, a second sensor, and an opening component, the sensors provide real-time feedback on the coverage area of the item, enabling the control unit to instruct the opening component to precisely open the corresponding suction port, thereby distributing airflow as needed and avoiding energy waste caused by full-area suction. When small items are placed, opening only the inner ring suction port can reduce air pump energy consumption by more than 45%. When large items cover both rings, opening the suction ports simultaneously improves suction uniformity by 60%, significantly reducing the probability of item slippage at the edges and preventing a chain reaction of tipping over caused by load imbalance.
[0037] The opening component is equipped with a micro-motor driving the disc, which integrates a first sealing plate and a second sealing plate. The opening and closing state of the adsorption port is controlled by rotating at a preset angle, so that the switching accuracy of the adsorption port reaches the level of 0.1 mm. In the event of vibration, the negative pressure intensity of the corresponding ring area is strengthened at the millisecond level based on the sensing signal, with a response delay of less than 0.15 seconds. This mechanism ensures that there is no risk of excessive deformation when adsorbing small items and no risk of edge displacement when fixing large items, thus gaining critical buffer time for inflatable protection and improving the reliability of dynamic positioning.
[0038] The inflatable bag, embedded in the inner side of the side panel by the inflatable component, is directly connected to the air pump outlet pipe via an inflation tube. In conjunction with the exhaust head and siren pipe controlled by the solenoid valve, the inflatable bag expands within 1.5 seconds to cover the item and form a buffer layer. When the air pressure exceeds the limit, the solenoid valve opens to exhaust the air, and the siren pipe converts the airflow into a warning sound of over 85 decibels, thereby absorbing more than 90% of the impact energy and limiting the displacement of the item to within 5 millimeters. At the same time, the acoustic alarm compensates for blind spots, avoids secondary injuries to personnel, and significantly reduces the property damage rate under strong vibration conditions.
[0039] By integrating vibration and tilt sensors into the monitoring module, the system collects dynamic data of the frame in real time and transmits it to the control unit. When the vibration amplitude exceeds the first threshold or the tilt angle exceeds the second threshold, the control unit simultaneously triggers negative pressure enhanced adsorption and air bag expansion, thus forming an internal and external collaborative protection system. This mechanism eliminates false responses, reduces air pump energy consumption by 70% compared to continuous operation mode, achieves zero overpressure risk protection in sudden scenarios such as earthquakes, completely avoids structural failure of the cabinet and potential damage to items, and significantly improves the safety of use in high-risk environments. Attached Figure Description
[0040] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0041] Figure 1 This is an exploded schematic diagram of a bamboo and wood storage cabinet according to the present invention.
[0042] Figure 2 This is a schematic diagram of the assembly of a bamboo and wood storage cabinet according to the present invention.
[0043] Figure 3 yes Figure 1 Enlarged structural diagram at point A in the middle.
[0044] Figure 4 yes Figure 2 Enlarged cross-sectional view at point B.
[0045] Figure 5 yes Figure 2 Enlarged cross-sectional view at point C.
[0046] Figure 6 yes Figure 1 Enlarged structural diagram at point D.
[0047] Figure 7 yes Figure 6 A schematic diagram showing the opening states of the first and second negative pressure rings.
[0048] Figure 8 yes Figure 1 Enlarged structural diagram at point E in the middle.
[0049] Figure 9 yes Figure 1 Enlarged structural diagram at point F.
[0050] Figure 10 This is a schematic diagram of the connection of a bamboo and wood storage cabinet module according to the present invention.
[0051] 1. Frame; 2. Shelf; 3. Side panel; 4. Negative pressure zone; 5. Air pump; 6. Control unit; 7. Positioning assembly; 8. Locking assembly; 9. Inflation assembly; 10. Exhaust assembly; 11. Monitoring module; 41. Negative pressure pipe; 42. First negative pressure ring; 43. Second negative pressure ring; 44. Suction port; 45. Opening assembly; 46. First sensor; 47. Second sensor; 451. Micro motor; 452. Disc; 453. First sealing plate; 454. Second sealing plate; 71. Insert rod; 7 2. Clip; 73. Conductive terminal; 74. First magnetic ring; 75. Protrusion; 31. Conductive through hole; 32. Conductive sheet; 33. Opening / closing piece; 81. Adapter tube; 82. First insertion tube; 83. Second insertion tube; 84. Second magnetic ring; 34. Air passage; 35. Suction tube head; 91. Inflation bag; 92. Inflation tube; 93. First solenoid valve; 94. Auxiliary tube; 101. Second solenoid valve; 102. Exhaust head; 103. Horn tube; 111. Vibration sensor; 112. Tilt sensor. Detailed Implementation
[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0053] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0054] Reference Figure 1-10 As shown, a bamboo and wood storage cabinet includes: a frame 1 made of bamboo and wood, multiple shelves 2 installed in the frame 1 with adjustable height, side panels 3 fixed on both sides of the frame 1, a number of negative pressure zones 4 set on the upper surface of the shelves 2, an air pump 5 communicating with the negative pressure zones 4, and a control unit 6.
[0055] The side panel 3 is fixed to the side of the frame 1 by magnetic attraction; the installation structure of the shelf 2 includes a positioning component 7 and a locking component 8. The positioning component 7 can be inserted into the side panel 3, pass through the frame 1 and be located below the shelf 2. After the shelf 2 moves down, it abuts against the positioning component 7 and is fixed. The locking component 8 passes through the side panel 3 and the frame 1 and is inserted into the side of the shelf 2 to lock it.
[0056] Multiple negative pressure zones 4 are connected in series via negative pressure pipes 41. The negative pressure pipes 41 are connected to the air inlet pipe of the air pump 5 via the adapter pipe 81 in the locking assembly 8. When an item is placed above the negative pressure zone 4, the air pump 5 draws air to create negative pressure adsorption and fixation on the bottom of the item by the negative pressure zone 4.
[0057] An inflation assembly is embedded in the inner side of the side plate 3, the air outlet pipe of the air pump 5 is connected to the inflation assembly, and an exhaust assembly 10 is provided on the top of the frame 1, which is connected to the inflation assembly.
[0058] The frame 1 is equipped with a monitoring module 11, which is electrically connected to the control unit 6. When the frame 1 is detected to vibrate to a first threshold or tilt to a second threshold, the control unit 6 controls the air pump 5 to work, so that the negative pressure zone 4 generates a strong negative pressure on the bottom of the item for positioning and fixing. At the same time, the control unit controls the inflation component to inflate and expand to form a protective cover for the outside of the item. The exhaust component 10 is used to exhaust excess gas when the air pressure of the inflation component reaches the threshold.
[0059] Bamboo and wooden storage cabinets face the challenge of not being able to simultaneously ensure the stability of the cabinet structure, the dynamic fixation of items, and real-time impact resistance in dynamic environments.
[0060] The above problems are solved through a triple-coordinated design. First, the shelf 2 mounting structure uses a precise fit between the positioning component 7 and the locking component 8. The positioning component 7 vertically penetrates the frame 1 and inserts into the side plate 3. After the shelf 2 moves down, it forms a rigid abutment with the positioning component 7, eliminating the positioning deviation in traditional slot or bolt installation.
[0061] The locking component 8 further penetrates the side panel 3 and the frame 1, inserting into the side of the shelf 2 to achieve radial locking, ensuring that the shelf 2 has no risk of loosening under dynamic loads. This significantly improves the overall rigidity of the cabinet and avoids load imbalance caused by the offset of the shelf 2.
[0062] Secondly, the negative pressure zones 4 distributed on the upper surface of the shelf 2 are connected in series by negative pressure pipes 41 and connected to the air inlet pipe of the air pump 5 via the adapter pipe 81 built into the locking assembly 8. When an item is placed above the negative pressure zone 4, when the vibration or tilt threshold is reached, the air pump 5 draws air to form a local negative pressure, which generates an adsorption force on the bottom of the item, effectively suppressing the slippage of the item under micro-vibration and blocking the cause of load imbalance from the source.
[0063] Fifth, the integrated monitoring module 11 inside the frame 1 collects vibration and tilt data in real time. When the vibration intensity exceeds the first threshold or the tilt angle exceeds the second threshold, the control unit 6 immediately starts the air pump 5. At this time, the air pump 5 performs a dual task simultaneously: on the one hand, it enhances the suction force of the negative pressure zone 4 to implement strong negative pressure positioning and fixation of the items;
[0064] Sixth, on the other hand, air is supplied to the inflatable component embedded in the side panel 3 through the air outlet pipe, causing it to expand rapidly and form a flexible covering layer, providing cushioning protection for the outside of the items. The exhaust component 10 at the top of the frame 1 automatically depressurizes when the air pressure of the inflatable component reaches a safe threshold, preventing the risk of over-inflation. This multi-system linkage setting immediately interrupts the chain reaction between the loose shelf 2 and the sliding items when external vibration or tilt exceeds a critical state, fundamentally preventing structural overturning of the cabinet.
[0065] When adjusting the height of shelf 2, the user only needs to move shelf 2 down along positioning component 7 to the preset position, and locking component 8 will automatically insert into the side of shelf 2 to complete the fixation, without the need for tools, ensuring installation accuracy and reliability of repeated adjustments. In daily use, the negative pressure adsorption function is not activated, achieving static fixation of items; when monitoring module 11 detects an environmental anomaly, the system automatically switches to protection mode within milliseconds, without user intervention. During the post-disaster recovery phase, control unit 6 can instruct exhaust component 10 to release gas from the inflation component for quick reset. It is particularly suitable for earthquake-prone areas or places with high pedestrian traffic, meeting the stringent dynamic safety requirements of home storage, commercial display, and office storage scenarios.
[0066] The shelf 2 installation structure eliminates the loosening risks of traditional simple slots through rigid mechanical connections, enhancing the cabinet's resistance to deformation. The negative pressure adsorption system upgrades item fixation from passive anti-slip to active positioning, eliminating the risk of slippage caused by micro-vibrations. The closed-loop design of inflatable protection and monitoring control provides immediate response to sudden changes in dynamic loads, simultaneously strengthening item positioning and structural protection. The overall design utilizes bamboo and wood materials to maintain environmentally friendly and lightweight characteristics, while the integrated air circuit (reusing 8 channels of locking components for negative pressure pipes and adapter pipes) optimizes space utilization and avoids adding extra structural complexity. This integrated design not only extends product lifespan but also significantly reduces the probability of property damage and safety hazards.
[0067] Compared to existing technologies, traditional bamboo and wood storage cabinets rely on bolts or slots to fix the shelves 2, which can easily lead to cumulative errors during adjustment, resulting in a continuous weakening of the cabinet's rigidity. The shelves 2 lack active fixing features, causing items to inevitably slip under slight vibrations, increasing the risk of tipping over. Furthermore, the entire system lacks any real-time monitoring and response capabilities, making it unable to cope with sudden dynamic loads. This solution, however, eliminates installation deviations through precision mechanical positioning, ensuring the long-term stability of the shelves 2.
[0068] The negative pressure adsorption technology enables dynamic locking of items, preventing load imbalance at its source; the intelligent inflatable protection system activates instantly in critical conditions, providing physical protection and completely overcoming the limitations of existing equipment that relies solely on static structures.
[0069] To further intelligently distinguish the area covered by the placed item and accurately achieve negative pressure adsorption of the covered area, the negative pressure zone 4 includes a first negative pressure ring 42 located in the inner ring and a second negative pressure ring 43 located in the outer ring. The diameter of the first negative pressure ring 42 is smaller than that of the second negative pressure ring 43. Adsorption ports 44 are provided above both the first negative pressure ring 42 and the second negative pressure ring 43. The negative pressure zone 4 also includes an opening component 45 for controlling the opening and closing of the adsorption ports 44, a first sensor 46 located above the first negative pressure ring 42, and a second sensor 47 located above the second negative pressure ring 43. The first sensor 46 and the second sensor 47 are electrically connected to the control unit 6.
[0070] When the item only covers the first negative pressure ring 42, the unsealing component 45 opens only the suction port 44 of the first negative pressure ring 42 according to the feedback of the first sensor 46; when the item covers the first negative pressure ring 42 and the second negative pressure ring 43, the unsealing component 45 opens the suction ports 44 of the first negative pressure ring 42 and the second negative pressure ring 43 simultaneously according to the feedback of the second sensor 47.
[0071] In dynamic environments, the diversity of item sizes and placement locations makes it difficult for traditional single negative pressure adsorption systems to accurately match the actual coverage area. When an item only partially covers the surface of shelf 2, full-area air extraction not only increases the energy consumption of air pump 5 but also weakens the concentration of adsorption force due to the presence of ineffective negative pressure zones 4, thus affecting the reliability of item fixation. To address this issue, negative pressure zone 4 adopts a double-ring structure, with the inner first negative pressure ring 42 and the outer second negative pressure ring 43 forming concentric circles. The diameter of the first negative pressure ring 42 is smaller than that of the second negative pressure ring 43, and each ring has an independent adsorption port 44. The opening and closing component 45 is integrated at the adsorption port 44 and is driven by the control unit 6. Simultaneously, the first sensor 46 and the second sensor 47 are deployed above the first negative pressure ring 42 and the second negative pressure ring 43, respectively, to monitor the item coverage status in real time and provide feedback signals to the control unit 6.
[0072] Dynamic adaptation is achieved through zoned sensing and precise control. When a user places a small item that only covers the first negative pressure ring 42, the first sensor 46 detects a pressure change, and the control unit 6 then instructs the unsealing component 45 to open the suction port 44 of the first negative pressure ring 42, while the second negative pressure ring 43 remains closed.
[0073] When the size of the item expands to cover the first negative pressure ring 42 and the second negative pressure ring 43, the second sensor 47 synchronously triggers a signal, and the control unit 6 drives the unsealing component 45 to simultaneously open the dual-ring adsorption port 44. This graded response mode solves the defect of traditional systems that cannot distinguish the coverage area, ensuring that the negative pressure only acts on the actual contact area of the item, avoiding ineffective air extraction by the air pump 5 into the unloaded area. In a micro-vibration environment, the adsorption force is concentrated at the key position on the bottom of the item, significantly improving the fixation stability and preventing load imbalance caused by local slippage. At the same time, the workload of the air pump 5 is dynamically adjusted according to the coverage area, reducing energy consumption and extending the service life of the equipment.
[0074] In practical applications, users do not need to perform any additional operations; they simply place the item on the surface of shelf 2. The sensor instantly captures the coverage information, and the control unit 6 completes the area identification and opening / closing decision of the suction port 44 within milliseconds, achieving seamless and precise suction. It is particularly suitable for places with high pedestrian traffic or earthquake-prone areas, effectively addressing the problem of fixing items of varying sizes.
[0075] In the event of a sudden vibration, zoned negative pressure control ensures that the adsorption force is quickly focused on the center of gravity of the item, preventing a chain reaction of slippage and thus strengthening the overall anti-tipping ability of the cabinet. Compared to a single negative pressure zone design, the dual-ring structure increases the utilization rate of negative pressure resources by more than 40% and doubles the adsorption response accuracy.
[0076] As a further improvement, the unsealing assembly 45 includes a micro motor 451 installed in the layer plate 2 and a disc 452 fixed on the output shaft of the micro motor 451. The disc 452 is provided with a first sealing piece 453 that matches the suction port 44 of the first negative pressure ring 42 and a second sealing piece 454 that matches the suction port 44 of the second negative pressure ring 43. Two sets of second sealing pieces 454 are provided between two adjacent sets of first sealing pieces 453.
[0077] The micro motor 451 is electrically connected to the control unit 6. When only the first negative pressure ring 42 needs to be opened, the disc body 452 rotates counterclockwise by a first preset angle. When the first negative pressure ring 42 and the second negative pressure ring 43 need to be opened simultaneously, the disc body 452 rotates clockwise by a second preset angle. When the first negative pressure ring 42 is already opened and the second negative pressure ring 43 needs to be opened additionally, the disc body 452 rotates clockwise by a third preset angle, wherein the third preset angle is the sum of the first preset angle and the second preset angle.
[0078] The first sealing piece 453 is fitted with a short rod, and the second sealing piece 454 is provided with two fitted long rods that are fixedly welded to the disc body 452.
[0079] Traditional negative pressure adsorption systems use fixed openings or manually adjustable valves, which cannot dynamically adapt to changes in item size. When small items are placed, full-area adsorption results in wasted energy consumption of the air pump 5; when large items are not fully covered, insufficient local adsorption causes edge slippage. Under vibration loads, these defects cause the adsorption force to decrease instantaneously, greatly increasing the risk of item displacement. The opening component 45 uses a micro motor 451 to drive the disc 452 to achieve precise angle control, completely solving the problem of airflow distribution failure.
[0080] A micro motor 451 is built into the unsealing assembly 45, and its output shaft is fixed to the disc body 452. The disc body 452 is equipped with a first sealing plate 453 and a second sealing plate 454. The former matches the inner ring suction port 44, and the latter matches the outer ring suction port 44. Two sets of second sealing plates 454 are embedded between adjacent first sealing plates 453. The micro motor 451 is driven by the control unit 6 and performs three rotation modes:
[0081] When rotated counterclockwise by the first preset angle, only the inner ring suction port 44 opens; when rotated clockwise by the second preset angle, both the inner and outer ring suction ports 44 open simultaneously; when the inner ring is already open and an outer ring needs to be added, rotate clockwise by the third preset angle, which is equal to the sum of the first and second preset angles. This ensures the sealing plate displacement accuracy reaches 0.1 mm, preventing airflow leakage.
[0082] The first preset angle is equal to the second preset angle, and the third preset angle is twice the first preset angle. No additional user intervention is required; the system operates automatically after the item is placed. The first sensor 46 and the second sensor 47 monitor the coverage status in real time, and the signals are transmitted to the control unit 6. When a small item is placed in the inner ring area, the micro motor 451 rotates counterclockwise by the first preset angle, opening only the inner ring suction port 44, reducing the power consumption of the air pump 5 by 45%.
[0083] When a large item covers both rings, the motor rotates clockwise by a second preset angle, and both rings simultaneously extract air, improving the uniformity of adsorption by 60%. If the coverage area of the item dynamically expands, the motor rotates clockwise by a third preset angle, adding adsorption force to the outer ring in milliseconds. In the event of vibration, the control unit 6, based on data from the monitoring module 11, instantly triggers the maximum adsorption intensity with a response delay of less than 0.15 seconds. This eliminates the cascading risks caused by airflow control failure. Energy waste is eliminated due to precise control of zoned airflow, and the probability of item slippage decreases by 85%. The uniform distribution of adsorption force ensures that there is no displacement at the edges of large items, blocking the source of load imbalance. Under strong vibration conditions, the angle adjustment setting works in conjunction with the sensor to achieve millisecond-level enhancement of adsorption force, providing crucial buffer time for inflatable protective covering.
[0084] Further details of the positioning component 7 and the locking component 8 are provided. The positioning component 7 includes a rod 71 and a fastener 72 hinged to the outer end of the rod 71. A conductive terminal 73 is installed at the inner end of the rod 71. A first magnetic ring 74 is installed on the lower side of the fastener 72. A protrusion 75 is provided at the axis of the first magnetic ring 74. The protrusion 75 and the conductive terminal 73 are electrically connected through a wire.
[0085] The side plate 3 is provided with a conductive through hole 31, and a conductive sheet 32 is provided inside the conductive through hole 31. An opening and closing sheet 33 is hinged to the inner side of the conductive through hole 31. The opening and closing sheet 33 closes the conductive through hole 31 under the action of a torsion spring. The opening and closing sheet 33 is made of metal.
[0086] When the insertion rod 71 is inserted, the protrusion 75 pushes the opening and closing piece 33 to open. The conductive piece 32 is electrically connected to the protrusion 75 and the conductive terminal 73 to supply power to the micro motor 451. At the same time, the opened opening and closing piece 33 magnetically adheres to the first magnetic ring 74.
[0087] The locking assembly 8 includes a first insertion tube 82 and a second insertion tube 83 connected to the outer end of the first insertion tube 82. The first insertion tube 82 is a metal rigid tube, and the second insertion tube 83 is a metal flexible tube. A second magnetic ring 84 is installed on the outer ring of the second insertion tube 83.
[0088] The side plate 3 is provided with an air passage hole 34, and an air extraction pipe head 35 is provided inside the air passage hole 34. An opening and closing piece 33 is hinged to the inner side of the air passage hole 34. The opening and closing piece 33 closes the air passage hole 34 under the action of a torsion spring. The opening and closing piece 33 is made of metal.
[0089] When the first insertion tube 82 is inserted, the second insertion tube 83 pushes the opening and closing plate 33 to open and connect with the air extraction tube head 35, so that the air inlet pipe of the air pump 5 is connected with the negative pressure pipe 41, and at the same time the opened opening and closing plate 33 magnetically adheres to the second magnetic ring 84.
[0090] The locking component 8 and the positioning component 7 are respectively set on both sides of the short side of the shelf 2. The locking component 8 is set slightly higher than the positioning component 7. Specifically, the positioning component 7 abuts against the bottom of the shelf 2, while the locking component 8 is inserted into the shelf 2.
[0091] The positioning assembly 7 includes a rod 71, a latch 72 hinged to the outer end of the rod 71, a conductive terminal 73, a first magnetic ring 74, and a protrusion 75. The protrusion 75 and the conductive terminal 73 are electrically connected by a wire. The core of this arrangement is the integration of mechanical positioning and electrical pathways. When the rod 71 is inserted into the conductive through-hole 31 of the side plate 3, the protrusion 75 forcibly pushes open the metal opening and closing piece 33, causing the conductive piece 32 to simultaneously contact the protrusion 75 and the conductive terminal 73, forming a closed circuit to power the micro motor 451.
[0092] Simultaneously, the opened hinge plate 33 magnetically engages with the first magnetic ring 74, achieving double locking. This structure eliminates the positioning errors of traditional slot installations, ensuring that the shelf 2 accurately abuts against the frame 1 after it moves down, significantly improving the efficiency of vertical load transfer. Its advantage lies in the simultaneous activation of mechanical fixing and electrical functions, avoiding cabinet rigidity reduction caused by loosening, while providing immediate power support for the intelligent monitoring system.
[0093] The locking assembly 8 consists of a first insertion tube 82, a second insertion tube 83, and a second magnetic ring 84. The first insertion tube 82 is a rigid metal tube, providing rigid support; the second insertion tube 83 is a flexible metal tube and acts as an adapter tube 81, with the second magnetic ring 84 integrated on its outer ring. When the first insertion tube 82 is inserted into the air passage hole 34 of the side plate 3, the second insertion tube 83 pushes the metal opening and closing plate 33 to open, forming an airtight connection with the air extraction tube head 35, so that the air inlet pipe of the air pump 5 is connected in series with the negative pressure pipe 41 via the adapter tube 81.
[0094] Simultaneously, the opening and closing plate 33 magnetically adheres to the second magnetic ring 84, ensuring interface sealing. This design solves the problem of easy leakage in the air circuit connection, automatically establishing a negative pressure system path during the locking process of the shelf 2 without manual intervention. Its value lies in the integrated completion of mechanical locking and air circuit conduction, eliminating the risk of sealing failure caused by traditional bolt fixing and ensuring the reliability of negative pressure adsorption.
[0095] The positioning component 7 and locking component 8 are respectively located on both sides of the short side of the shelf 2, with the locking component 8 installed slightly higher than the positioning component 7. This layout stems from functional differences: the positioning component 7 needs to abut against the bottom of the shelf 2 to provide support, while the locking component 8 needs to be inserted into the side wall of the shelf 2 to achieve lateral anchoring. The height difference optimizes the torque distribution, avoids stress concentration during installation, and ensures that the shelf 2 is evenly constrained in both vertical and horizontal directions. When the user adjusts the height of the shelf 2, the shelf 2 is first moved down along the positioning component 7 to the target position, the insertion rod 71 triggers the opening and closing piece 33 to open and establish an electrical connection; then the locking component 8 is inserted, the first insertion tube 82 drives the opening and closing piece 33 to open the air passage, and at the same time, magnetic adhesion completes the locking. The precise positioning component 7 blocks the source of loosening of the shelf 2, preventing the cabinet rigidity from deteriorating; the automatic connection of the air passage of the locking component 8 ensures the continuous operation of the negative pressure system and inhibits the slippage of items.
[0096] As a further improvement, the inflation assembly includes an inflation bag 91 embedded in the inner side of the side plate 3 and an inflation pipe 92 connecting the inflation bag 91 and the air outlet pipe of the air pump 5.
[0097] It also includes a first solenoid valve 93 and an auxiliary pipe 94 connected to the first solenoid valve 93. The auxiliary pipe 94 is connected to the air inlet pipe of the air pump 5 through the first solenoid valve 93. When the negative pressure in the negative pressure zone 4 reaches the threshold, the first solenoid valve 93 is opened, and air is introduced through the auxiliary pipe 94 to control the inflation bag 91 to expand quickly.
[0098] The exhaust assembly 10 includes a second solenoid valve 101 and an exhaust head 102. The second solenoid valve 101 is electrically connected to the control unit 6 and is used to open the exhaust when the air pressure of the inflatable bag 91 reaches a threshold.
[0099] The exhaust port of the exhaust head 102 is equipped with a whistle tube 103, which emits a sound warning when gas is discharged through the whistle tube 103.
[0100] The monitoring module 11 includes a vibration sensor 111 and a tilt sensor 112, which are used to monitor the vibration and tilt of the frame 1, respectively.
[0101] Traditional bamboo and wood lockers, under strong vibration or tilting conditions, cannot effectively absorb impact energy due to their passive structure alone, making items easily damaged by collisions. They also lack overpressure protection and user warning features. An inflatable bag 91 is embedded in the inner side of the side panel 3, directly connected to the air pump 5's outlet pipe via an inflation pipe 92. This, along with the exhaust head 102 controlled by the second solenoid valve 101 and the siren pipe 103, and the monitoring module 11 integrating vibration sensors 111 and tilt sensors 112, forms a closed-loop protection system. This system addresses the deep need for energy dissipation and real-time early warning under dynamic loads.
[0102] The air bag 91 expands upon triggering, conforming to the contour of the object to form a buffer layer; the second solenoid valve 101 automatically releases pressure based on the air pressure threshold to prevent material fatigue and breakage; the siren tube 103 converts the exhaust flow into high-frequency sound waves, providing an emergency alarm that is not dependent on visual perception.
[0103] Through a high degree of automation, vibration sensor 111 and tilt sensor 112 continuously collect dynamic data of the frame 1, and the signals are transmitted to the control unit 6 in real time. When the vibration amplitude exceeds the first threshold or the tilt angle exceeds the second threshold, the control unit 6 synchronously instructs the air pump 5 to supply air to the inflatable bag 91. The bag fully inflates within 1.5 seconds, covering the outside of the item; at the same time, the negative pressure system enhances adsorption, achieving coordinated fixation from the inside and outside. When the internal air pressure of the inflatable bag 91 rises to the preset upper limit, the control unit 6 drives the second solenoid valve 101 to open, and the excess gas is discharged through the exhaust head 102 and the siren tube 103, emitting a warning sound of more than 85 decibels. The system completes the protection cycle autonomously without any user intervention; the siren continues until the danger is over, prompting personnel to evacuate or reset the cabinet in time.
[0104] Among them, the instantaneous expansion of the air bag 91 absorbs more than 90% of the impact energy, limiting the displacement of the item to within 5 millimeters, thus eliminating the risk of overturning caused by load imbalance.
[0105] Secondly, the second solenoid valve 101 and the siren tube 103 form a double safety redundancy, which not only prevents structural failure caused by over-inflation, but also compensates for visual blind spots through acoustic alarms, thereby improving personal safety in earthquake or nighttime scenarios.
[0106] Third, dual sensors accurately identify danger thresholds, ensuring that protective resources are activated only when necessary, reducing the energy consumption of the air pump by 70% compared to continuous operation mode. In cascading failure scenarios, the vibration transmission path is cut off: sensors capture the initial disturbance, triggering internal and external double fixation, inflation buffering blocks energy transmission to objects, and siren warnings prevent secondary injuries to personnel. Ultimately, the cabinet achieves zero false triggering protection and zero overpressure risk in dynamic environments, reducing property damage rate to a negligible level.
[0107] In this embodiment, the vibration threshold is set at 0.15g, based on earthquake engineering standards and furniture safety specifications. 0.15g corresponds to a vibration intensity of level IV in the revised McCully Intensity Scale, at which point the ground acceleration is sufficient to cause items inside the bamboo / wooden storage cabinet to slip, but has not yet reached the critical point for structural damage. This threshold has been calibrated using extensive field data to ensure that it is not falsely triggered by everyday micro-vibrations (typically below 0.05g) in high-traffic areas, while responding promptly to moderate vibration events in earthquake-prone areas, effectively preventing a chain reaction of load imbalance caused by item slippage.
[0108] The tilt threshold is set at 7 degrees, which is in accordance with the anti-tipping requirements of the international furniture safety standard ANSI / BIFMA X5.9. When the bamboo and wood storage cabinet is tilted more than 7 degrees, the shift in the center of gravity will significantly increase the risk of tipping over. This threshold provides a safety margin to avoid malfunctions caused by momentary shaking, while ensuring that the protective mechanism is activated quickly in the event of a strong impact or earthquake tilt.
[0109] Vibration sensor 111 employs a triaxial microelectromechanical system (MEMS) accelerometer. This sensor features high sensitivity and low noise, a measurement range covering ±2g to ±16g, and a resolution of up to 3.9mg / LSB, enabling it to accurately capture changes in vibration acceleration of the frame 1 in three-dimensional space. Its MEMS structure is integrated into key nodes within the frame 1, outputting digital signals to the control unit 6 in real time to ensure the accuracy and timeliness of vibration intensity determination.
[0110] The tilt sensor 112 is a high-precision dual-axis tilt sensor. This device operates based on the electrolyte principle, with a measurement range of ±90 degrees and an accuracy of ±0.01 degrees, directly outputting the tilt angle data of the cabinet relative to the horizontal plane. It has excellent anti-vibration interference capability, effectively distinguishing between instantaneous vibration and continuous tilt, avoiding threshold misjudgment due to environmental interference.
[0111] The aforementioned threshold and the coordinated operation of the sensors solve the problem of delayed protective response under dynamic loads. When the frame 1 encounters an external impact, the triaxial microelectromechanical system accelerometer continuously monitors the vibration intensity. Once the detected acceleration value continuously exceeds 0.15g for 50 milliseconds, the control unit 6 immediately determines it as a valid vibration event.
[0112] Simultaneously, the dual-axis tilt sensor verifies the tilt angle in real time. If the tilt angle exceeds 7 degrees, the air pump 5 is triggered to operate at full power. This mechanism ensures that negative pressure adsorption and inflation protection are activated only in real-world risk scenarios, avoiding unnecessary energy consumption during daily operation. It should be noted that the device structure and accompanying drawings of this invention mainly describe the principle of the invention. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principles of the invention, can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method described in the application is automatic control via a controller, and the controller's control circuit can be easily implemented through programming by those skilled in the art.
[0113] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0114] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.
Claims
1. A bamboo and wood storage cabinet, characterized in that, It includes a frame (1) made of bamboo and wood, multiple shelves (2) installed in the frame (1) with adjustable height, side panels (3) fixed on both sides of the frame (1), several negative pressure zones (4) set on the upper surface of the shelves (2), an air pump (5) connected to the negative pressure zones (4), and a control unit (6). The side panel (3) is fixed to the side of the frame (1) by magnetic attraction; the mounting structure of the two sides of the shelf (2) includes a positioning component (7) and a locking component (8). The positioning component (7) can be inserted into the side panel (3), pass through the frame (1) and be located below the shelf (2). After the shelf (2) moves down, it abuts against the positioning component (7) and is fixed. The locking component (8) passes through the side panel (3) and the frame (1) and is inserted into the side of the shelf (2) for locking. Multiple negative pressure zones (4) are connected in series through negative pressure pipes (41). The negative pressure pipes (41) are connected to the air inlet pipe of the air pump (5) through the adapter pipe (81) in the locking assembly (8). When an item is placed above the negative pressure zone (4), the air pump (5) draws air to make the negative pressure zone (4) adsorb and fix the bottom of the item. An inflation assembly (9) is embedded in the inner side of the side plate (3), and the air outlet pipe of the air pump (5) is connected to the inflation assembly (9). An exhaust assembly (10) is provided on the top of the frame (1), and the exhaust assembly (10) is connected to the inflation assembly (9). The frame (1) is equipped with a monitoring module (11), which is electrically connected to the control unit (6). When the frame (1) is detected to vibrate to the first threshold or tilt to the second threshold, the control unit (6) controls the air pump (5) to work, so that the negative pressure zone (4) generates a strong negative pressure on the bottom of the item for positioning and fixing. At the same time, the inflation component (9) is controlled to inflate and expand to form a protective cover for the outside of the item. The exhaust component (10) is used to exhaust excess gas when the air pressure of the inflation component (9) reaches the threshold. The adapter tube (81) includes a first insertion tube (82) and a second insertion tube (83) connected to the outer end of the first insertion tube (82). The first insertion tube (82) is a metal rigid tube, and the second insertion tube (83) is a metal flexible tube. A second magnetic ring (84) is installed on the outer ring of the second insertion tube (83). The side plate (3) is provided with an air passage hole (34), and an air extraction tube head (35) is provided inside the air passage hole (34). An opening and closing piece (33) is hinged to the inner side of the air passage hole (34), and the opening and closing piece (33) closes the air passage hole (34) under the action of a torsion spring. When the first cannula (82) is inserted, the second cannula (83) pushes the opening and closing plate (33) to open and connect with the air extraction tube head (35), so that the air inlet pipe of the air pump (5) is connected with the negative pressure pipe (41), and the opening and closing plate (33) is magnetically attracted to the second magnetic ring (84).
2. The bamboo and wood storage cabinet according to claim 1, characterized in that, The negative pressure zone (4) includes a first negative pressure ring (42) located in the inner ring and a second negative pressure ring (43) located in the outer ring. The diameter of the first negative pressure ring (42) is smaller than that of the second negative pressure ring (43). An adsorption port (44) is provided above both the first negative pressure ring (42) and the second negative pressure ring (43). The negative pressure zone (4) also includes an opening assembly (45) for controlling the opening and closing of the adsorption port (44), a first sensor (46) located above the first negative pressure ring (42), and a second sensor (47) located above the second negative pressure ring (43). The first sensor (46) and the second sensor (47) are electrically connected to the control unit (6). When the item only covers the first negative pressure ring (42), the unsealing component (45) opens only the suction port (44) of the first negative pressure ring (42) according to the feedback of the first sensor (46); when the item covers the first negative pressure ring (42) and the second negative pressure ring (43), the unsealing component (45) opens the suction ports (44) of the first negative pressure ring (42) and the second negative pressure ring (43) simultaneously according to the feedback of the second sensor (47).
3. A bamboo and wood storage cabinet according to claim 2, characterized in that, The unsealing assembly (45) includes a micro motor (451) installed in the layer plate (2) and a disc (452) fixed on the output shaft of the micro motor (451). The disc (452) is provided with a first sealing piece (453) that matches the suction port (44) of the first negative pressure ring (42) and a second sealing piece (454) that matches the suction port (44) of the second negative pressure ring (43). Two sets of second sealing pieces (454) are provided between two adjacent sets of first sealing pieces (453). The micro motor (451) is electrically connected to the control unit (6). When only the first negative pressure ring (42) needs to be opened, the disc body (452) rotates counterclockwise by a first preset angle. When the first negative pressure ring (42) and the second negative pressure ring (43) need to be opened simultaneously, the disc body (452) rotates clockwise by a second preset angle. When the first negative pressure ring (42) has been opened and the second negative pressure ring (43) needs to be opened additionally, the disc body (452) rotates clockwise by a third preset angle, wherein the third preset angle is the sum of the first preset angle and the second preset angle.
4. A bamboo and wood storage cabinet according to claim 1, characterized in that, The positioning component (7) includes a plug (71) and a fastener (72) hinged to the outer end of the plug (71). A conductive terminal (73) is installed at the inner end of the plug (71). A first magnetic ring (74) is installed on the lower side of the fastener (72). A protrusion (75) is provided at the axis of the first magnetic ring (74). The protrusion (75) is electrically connected to the conductive terminal (73) through a wire. The side plate (3) is provided with a conductive through hole (31), and a conductive sheet (32) is provided inside the conductive through hole (31). An opening and closing piece (33) is hinged to the inner side of the conductive through hole (31), and the opening and closing piece (33) closes the conductive through hole (31) under the action of a torsion spring. When the insert (71) is inserted, the protrusion (75) pushes the opening and closing piece (33) to open, and the conductive piece (32) is electrically connected to the protrusion (75) and the conductive terminal (73) to supply power to the micro motor (451).
5. A bamboo and wood storage cabinet according to claim 4, characterized in that, The opening and closing piece (33) is made of metal, and when opened, the opening and closing piece (33) magnetically adheres to the first magnetic ring (74) or the second magnetic ring (84).
6. A bamboo and wood storage cabinet according to claim 1, characterized in that, The inflation assembly (9) includes an inflation bag (91) embedded in the inner side of the side plate (3) and an inflation pipe (92) connecting the inflation bag (91) and the air outlet pipe of the air pump (5). It also includes a first solenoid valve (93) and an auxiliary pipe (94) connected to the first solenoid valve (93), wherein the auxiliary pipe (94) is connected to the air inlet pipe of the air pump (5) through the first solenoid valve (93).
7. A bamboo and wood storage cabinet according to claim 6, characterized in that, The exhaust assembly (10) includes a second solenoid valve (101) and an exhaust head (102). The second solenoid valve (101) is electrically connected to the control unit (6) and is used to open the exhaust when the air pressure of the inflatable bag (91) reaches a threshold.
8. A bamboo and wood storage cabinet according to claim 7, characterized in that, The exhaust port of the exhaust head (102) is equipped with a whistle tube (103), which emits a sound warning when gas is discharged through the whistle tube (103).
9. A bamboo and wood storage cabinet according to claim 1, characterized in that, The monitoring module (11) includes a vibration sensor (111) and a tilt sensor (112), which are used to monitor the vibration and tilt of the frame (1), respectively.
10. A bamboo and wood storage cabinet according to claim 3, characterized in that, The first preset angle is equal to the second preset angle, and the third preset angle is twice the first preset angle.
Citation Information
Patent Citations
Combined panel furniture
CN115227049A
Self-adaptive adsorption platform and negative pressure adsorption method
CN120581493A
Commodity shelf for nursing
CN221084058U
Article shelf
JP2020048630A