Electric wall cupboard with descending anti-collision function

Abstract

The utility model discloses an electric wall cupboard with a descending anti-collision function, which comprises a storage cabinet doing lifting motion, the bottom of the storage cabinet is provided with a bottom plate, the two opposite sides of the lower surface of the bottom plate are respectively provided with a floating connecting component, and the floating connecting components on the two sides are provided with bearing cantilevers extending to each other; the triggering part is of a plate-shaped structure and is freely placed on the bearing cantilevers on the two sides to achieve floating connection with the bottom plate, an interlayer space is formed between the triggering part and the bottom plate, and the triggering part floats upwards due to extrusion of an obstacle in the descending process of the storage cabinet; and the sensing part is arranged in the interlayer space and is triggered to act by the upward floating of the triggering part. The electric wall cupboard lower anti-collision component has the advantage of solving the problem that an existing electric wall cupboard lower anti-collision component is large in occupied space. The interlayer space is formed through floating connection of the triggering part and the bottom plate, the triggering part in floating connection does not depend on guiding of a guide column, the thickness of the bottom of the cabinet body is remarkably reduced, the ultra-thin design requirement is met, and meanwhile space occupation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting cabinet technology, specifically to an electric lifting cabinet with a descent anti-collision function. Background Technology

[0002] With the increasing demand for smart homes and efficient space utilization, lift-up kitchen cabinets have become an important feature in modern kitchens due to their flexibility and safety. To prevent lift-up cabinets from crushing objects below them during descent, a bumper is installed at the bottom of the cabinet. When the bumper touches an object, it rises and triggers a microswitch, stopping the cabinet from descending.

[0003] For example, the Chinese patent CN210076993U, entitled "Lifting Cabinet and Safety Base Plate," discloses a base plate that is suspended below the upper plate via guide columns, bolts, springs, and other components. The above structure has the following defects:

[0004] 1. Large space occupation: The guide columns and springs require a large installation space, which increases the thickness of the bottom of the cabinet and makes it difficult to adapt to the requirements of ultra-thin design;

[0005] 2. High risk of jamming: When the base plate guided by the guide post is subjected to uneven force, it is easy for the movement direction to deviate, causing the guide post to rub against the mounting hole and get stuck. Utility Model Content

[0006] The purpose of this invention is to provide an electric hanging cabinet with a lowering anti-collision function, which can effectively solve the problem of large space occupation of the lower anti-collision components of existing electric hanging cabinets.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] Electric overhead cabinets with anti-collision lowering function include:

[0009] A storage cabinet that moves up and down has a base plate at the bottom. The lower surface of the base plate has floating connecting members on opposite sides. The floating connecting members on both sides have supporting cantilever arms that extend towards each other.

[0010] The triggering component is a plate-shaped structure that rests freely on the supporting cantilever arms on both sides to achieve a floating connection with the base plate. A sandwich space is formed between the triggering component and the base plate. The triggering component floats upward when it is squeezed by obstacles during the descent of the locker.

[0011] The sensing component is located in the interlayer space and its action is triggered by the upward floating of the triggering component.

[0012] In the aforementioned electric hanging cabinet with descent and anti-collision function, the triggering component has outwardly extending ribs on opposite sides, which are freely resting on the supporting cantilever.

[0013] In the aforementioned electric hanging cabinet with descent and anti-collision function, some triggering components protrude downwards from the lower surface of the supporting cantilever.

[0014] In the aforementioned electric hanging cabinet with descent and anti-collision function, the side of the triggering component facing the supporting cantilever is connected to the bottom surface of the triggering component by a rounded transition.

[0015] In the aforementioned electric hanging cabinet with descent and anti-collision function, the triggering component floats vertically relative to the floating connecting component; or, the triggering component partially supports the cantilever and causes it to swing.

[0016] In the aforementioned electric hanging cabinet with descent and anti-collision function, multiple sensing components are provided along the periphery of the mezzanine space.

[0017] In the aforementioned electric hanging cabinet with descent and anti-collision function, the floating connecting components on both sides are fitted with the triggering component with a clearance fit. The clearance fit limits the single-sided displacement of the triggering component to be less than the extension length of the supporting cantilever.

[0018] In the aforementioned electric hanging cabinet with descent and anti-collision function, floating connecting members are respectively provided on opposite sides of the lower surface of the base plate in the width direction, and each floating connecting member extends linearly in the length direction of the lower surface of the base plate.

[0019] In the aforementioned electric hanging cabinet with descent and anti-collision function, an insertion port is formed between the ends of the two floating connecting components on the same side. The triggering component is laterally embedded through the insertion port and freely rests on the supporting cantilever arms on both sides.

[0020] In the aforementioned electric hanging cabinet with descent and anti-collision function, the left and right sides of the cabinet are respectively provided with side panels. After the triggering component rests on the supporting cantilever on both sides, the side panel corresponding to the insertion port on the cabinet covers the insertion port.

[0021] Compared with the prior art, the advantages of this utility model are:

[0022] By floating the triggering component beneath the base plate, the problem of large space occupation by existing electric hanging cabinet's lower anti-collision components is solved. When encountering an obstacle, the triggering component quickly floats upward, directly activating the sensing component within the mezzanine space. This fast response and high sensitivity effectively prevent collisions with items or people below during cabinet descent. The floating connection between the triggering component and the base plate creates a mezzanine space, eliminating the complex mechanical structures such as guide columns and springs found in existing technologies. This significantly reduces the thickness of the cabinet's bottom, meeting ultra-thin design requirements while minimizing space occupation. The floating connection simplifies the installation process, eliminating the need for complex guide column assembly, and the integration of the triggering and sensing components within the mezzanine space facilitates future maintenance and replacement. The mezzanine space design can flexibly accommodate different types of sensing components, providing a basic framework for technological upgrades or functional expansion.

[0023] Furthermore, the triggering component has outwardly extending ribs on opposite sides, which rest freely on the supporting cantilever. The increased contact area between the outwardly extending ribs on both sides of the triggering component and the supporting cantilever creates a more stable support structure.

[0024] Furthermore, some of the triggering components protrude downwards from the lower surface of the supporting cantilever. This downward protrusion brings the triggering components closer to the potential contact area with the obstacle. This design shortens the effective distance between the triggering components and the obstacle, allowing them to quickly float upwards to trigger the sensing components under pressure, significantly improving the sensitivity and response speed of the collision avoidance reaction.

[0025] Furthermore, the side of the trigger component facing the supporting cantilever is connected to the bottom surface of the trigger component by a rounded transition. This rounded transition eliminates sharp edges, reducing the risk of accidental scratches during operation, making it particularly suitable for high-frequency contact scenarios such as kitchens. After the trigger component floats upward to trigger the anti-collision action, the rounded transition surface can form a curved guiding contact with the edge of the supporting cantilever during the descent and reset process. The geometric characteristics of the rounded surface allow the trigger component to smoothly slide down the supporting cantilever under gravity, automatically returning to its initial position, avoiding reset delays or jamming caused by right-angled edges.

[0026] Furthermore, the triggering component floats vertically relative to the floating connecting member; or, the triggering component partially supports the cantilever, causing it to oscillate. The triggering component can automatically switch its floating posture based on the force location without external control, avoiding the limitations of traditional mechanical structures that require pre-set motion paths. Whether it's a large-area collision at the center or a collision at the outer edge, precise response can be achieved through adaptive motion modes, while maintaining structural lightweight and spatial adaptability.

[0027] Furthermore, multiple sensing components are arranged along the perimeter of the mezzanine space. Regardless of whether the obstacle collision triggering component is located at the center, left, right, or front, the corresponding sensing component can be triggered independently, solving the edge blind zone problem existing in traditional single-point sensing (such as setting only one sensor in the center).

[0028] Furthermore, the floating connecting members on both sides are clearance-fitted with the triggering component, and this clearance fit limits the unilateral displacement of the triggering component to be less than the extension length of the supporting cantilever. When an obstacle acts only on one side or locally on the triggering component, the clearance fit provides room for movement, allowing the triggering component to partially swing or deflect around the supporting cantilever, rather than becoming completely stuck. When the triggering component deflects due to uneven force, the unilateral displacement is limited to less than the extension length of the supporting cantilever, meaning that the center of gravity of the triggering component is always within the support area of ​​the supporting cantilever. Even if the triggering component tilts significantly, the main body of the triggering component will not completely detach from the supporting cantilever, preventing the triggering component from falling between the floating connecting members due to excessive deflection, thereby maintaining the integrity and continued effectiveness of the anti-collision structure.

[0029] Furthermore, floating connecting members are respectively provided on opposite sides of the lower surface of the base plate in the width direction, and each floating connecting member extends linearly in the length direction of the lower surface of the base plate. The linearly extending floating connecting members are continuously arranged along the length direction of the base plate, upgrading the contact area with the triggering component from "discrete points" to "continuous lines", increasing the support contact area. This design not only reduces the pressure on the triggering component locally, avoiding wear or deformation caused by stress concentration, but also suppresses its lateral swaying or torsion during the lifting and lowering of the locker through continuous support, ensuring that the triggering component only moves in a preset direction when squeezed by an obstacle, reducing the risk of accidental activation due to swaying.

[0030] Furthermore, an insertion port is formed between the ends of the two floating connecting components on the same side. The triggering component is laterally embedded through the insertion port and freely rests on the supporting cantilever arms on both sides. The triggering component does not require complex fixing methods such as screws or clips; it only needs to be pushed in laterally along the insertion port to automatically snap into the supporting cantilever arms on both sides, achieving "plug and play". Compared with the traditional method of lifting the triggering component from below and aligning it with multiple mounting holes, this significantly reduces assembly steps and operational difficulty, making it especially suitable for scenarios where the space at the bottom of the wall cabinet is limited.

[0031] Furthermore, the storage cabinet has side panels on both the left and right sides. The side panels corresponding to the insertion ports on the storage cabinet cover the insertion ports after the triggering components are placed on the supporting cantilever arms on both sides. With the insertion ports covered by the side panels, external dust, oil, and small objects are less likely to enter the space between the triggering components and the bottom plate, preventing poor contact or jamming of the sensing components due to foreign object accumulation. With the insertion ports covered by the side panels, the bottom of the storage cabinet has a complete and smooth outline, without exposed installation gaps or mechanical interfaces, matching the integrated design of the wall-mounted cabinet side panels. Attached Figure Description

[0032] Figure 1 This is a perspective view of the storage cabinet in the retracted state of the electric hanging cabinet with lowering and anti-collision function of this utility model.

[0033] Figure 2 This is a perspective view of the storage cabinet in the electric hanging cabinet with lowering anti-collision function of this utility model after it has been lowered.

[0034] Figure 3 This is a rear perspective view of the storage cabinet in this utility model;

[0035] Figure 4 This is a cross-sectional view of the storage cabinet in this utility model;

[0036] Figure 5 This is a schematic diagram of the connection structure between the base plate and the triggering component of the storage cabinet in this utility model;

[0037] Figure 6 This is a schematic diagram of the structure of the bottom plate in this utility model;

[0038] Figure 7 This is a schematic diagram of the triggering component in this utility model;

[0039] Figure 8 for Figure 5 Enlarged view of a portion of point A in the middle;

[0040] Figure 9 This is a bottom view of the base plate of this utility model.

[0041] The attached figures are labeled as follows:

[0042] Storage cabinet 100, back panel 110, bottom panel 120, floating connecting component 130, supporting cantilever 131, insertion port 132, item retrieval port 140, side panel 150, triggering component 200, mezzanine space 210, protruding rib 221, sensing component 300, outer cabinet body 500, lead screw 610, transmission nut 620. Detailed Implementation

[0043] Electric overhead cabinets with anti-collision lowering function include:

[0044] The storage cabinet 100 is capable of lifting and lowering. The bottom of the storage cabinet 100 is provided with a base plate 120. The lower surface of the base plate 120 is provided with floating connecting members 130 on opposite sides. The floating connecting members 130 on both sides have supporting cantilever arms 131 extending towards each other.

[0045] The triggering component 200 is a plate-shaped structure and is freely placed on the supporting cantilever arms 131 on both sides to achieve a floating connection with the base plate 120. A sandwich space 210 is formed between the triggering component 200 and the base plate 120. The triggering component 200 floats upward when it is squeezed by obstacles during the descent of the locker 100.

[0046] The sensing component 300 is disposed in the interlayer space 210 and is triggered by the upward floating action of the triggering component 200.

[0047] By floating the trigger component 200 below the base plate 120, the problem of large space occupation by the anti-collision components under existing electric hanging cabinets is solved. When encountering an obstacle, the trigger component 200 can quickly float upwards, directly triggering the sensing component 300 within the mezzanine space 210. This fast response and high sensitivity effectively prevent collisions with items or people below during cabinet descent. The floating connection between the trigger component 200 and the base plate 120 forms the mezzanine space 210, eliminating the complex mechanical structures such as guide columns and springs found in existing technologies. This significantly reduces the thickness of the cabinet bottom, meeting ultra-thin design requirements while minimizing space occupation. The floating connection design simplifies the installation process, eliminating the need for complex guide column assembly. Furthermore, the integration of the trigger component 200 and the sensing component 300 within the mezzanine space 210 facilitates future maintenance or replacement. The design of the mezzanine space 210 can flexibly accommodate different types of sensing components 300, providing a basic framework for technological upgrades or functional expansion.

[0048] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] Furthermore, 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 at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] See Figures 1 to 9 This embodiment of the electric wall-mounted cabinet with a lowering and anti-collision function includes an outer cabinet 500 fixed to the wall and a storage cabinet 100 capable of lifting and lowering. A lifting drive mechanism is provided on the outer cabinet 500. The bottom of the outer cabinet 500 has an opening, through which the storage cabinet 100 can be extended, thus achieving the lifting and lowering function of the storage cabinet 100. The outer cabinet 500 stably supports the storage cabinet 100, providing reliable support during lifting and lowering. The lifting drive mechanism precisely controls the rising and falling of the storage cabinet 100, ensuring smooth operation and avoiding problems such as shaking or jamming. In practical use, the stable structure ensures the safety and reliability of the wall-mounted cabinet under frequent lifting and lowering operations, reducing safety hazards caused by structural instability.

[0053] The lifting drive mechanism can be a linear actuator, which includes a motor, a lead screw 610 driven by the motor, and a transmission nut 620 fitted onto the lead screw 610. The motor and lead screw 610 can be installed inside the outer cabinet 500, and the transmission nut 620 is connected to the storage cabinet 100, thus realizing the lifting action of the storage cabinet 100. In addition to the lifting drive mechanism with the above structure, a gear and rack transmission mechanism, a synchronous belt transmission mechanism, or a pneumatic / hydraulic cylinder transmission mechanism can also be used to realize the lifting function of the storage cabinet 100.

[0054] In this embodiment, the front of the locker 100 is provided with an opening as an item retrieval port 140, the bottom of the locker 100 is provided with a base plate 120, and a back plate 110 connected to the base plate 120 is provided at a position opposite to the item retrieval port 140. The lifting drive mechanism is connected to the back plate 110, so that the entire locker 100 can be lifted and lowered.

[0055] The storage locker 100 has a triggering component 200 and a sensing component 300 at its bottom. If the storage locker 100 encounters an obstacle during its descent, the triggering component 200 will activate the sensing component 300, causing the sensing component 300 to send a signal to control the movement of the storage locker 100. Specifically, floating connecting components 130 are provided on opposite sides of the lower surface of the base plate 120. The floating connecting components 130 on both sides have supporting cantilever arms 131 extending towards each other. The triggering component 200 is a plate-like structure and rests freely on the supporting cantilever arms 131 on both sides to achieve a floating connection with the base plate 120. That is, the supporting cantilever arms 131 only play a supporting role. Thus, when the triggering component 200 is squeezed by an obstacle during the descent of the storage locker 100, it will float upward. This floating does not limit the specific floating posture of the triggering component 200, but rather determines the floating posture of the triggering component 200 based on the magnitude of the force exerted by the obstacle on the triggering component 200 and the position of the force exerted on the triggering component 200.

[0056] In this embodiment, the floating connecting member 130 has an L-shaped or similar L-shaped cross-section. Its vertical length determines the upward floating distance of the triggering component 200, while the horizontal portion is a supporting cantilever 131, used to support the triggering component 200 upwards. The structural design of the supporting cantilever 131 allows the triggering component 200 to float upwards sensitively when compressed by an obstacle. When an obstacle appears, the triggering component 200 can respond promptly, quickly transmitting pressure to the strain gauge electrical signal conversion element. Because the triggering component 200 rests freely on the cantilever, it can act quickly under pressure, transmitting a signal to ensure the safety protection module can detect the obstacle in time, stopping the cabinet's descent and effectively avoiding collisions. In practical applications, if the triggering component 200 cannot sensitively detect obstacles, the cabinet may collide with the obstacle, causing damage. The design of the supporting cantilever 131 effectively solves this problem, improving the timeliness and reliability of safety protection.

[0057] This design provides stable support for the trigger component 200, allowing it to float securely below the base plate 120 under normal conditions. Even with frequent raising and lowering of the wall cabinet, the trigger component 200 is not prone to swaying or shifting, maintaining its relative position to the base plate 120 and ensuring the stable operation of the safety protection module. During daily use of the wall cabinet, frequent raising and lowering movements will generate vibrations. If the support for the trigger component 200 is unstable, its position may change, affecting the safety protection effect. The design of the supporting cantilever 131 effectively avoids this situation, ensuring that the trigger component 200 floats stably and functions reliably.

[0058] Since the triggering component 200 rests on the supporting cantilever 131, a mezzanine space 210 is formed between the triggering component 200 and the base plate 120. This mezzanine space 210 provides space for the triggering component 200 to float upwards, and it can also be used to house the sensing component 300. Thus, the sensing component 300 is directly triggered when the triggering component 200 floats upwards. This structure allows the triggering component 200 to independently and flexibly sense obstacles. Once the cabinet encounters an obstacle during its descent, the triggering component 200 reacts quickly and floats upwards immediately. Compared to traditional anti-collision structures, this eliminates the need for a complex transmission process, significantly shortening the time from contact with an obstacle to triggering the protective mechanism. This allows the storage cabinet 100 to stop descending more promptly, effectively preventing collisions. In practical applications, when an item suddenly appears below the cabinet, the floating triggering component 200 can detect it instantly, preventing the cabinet from descending and protecting the cabinet and the items below. Because the triggering component 200 is suspended below the base plate 120, each part can independently sense obstacles. Even with single-point force, it can flexibly float upwards to trigger the sensing component 300. Unlike structures with guide pillars, this design will not cause triggering delays or failures due to deflection caused by single-point force. Regardless of the obstacle's location, the triggering component 200 can reliably react, greatly improving the reliability of collision protection and better protecting the items inside the storage cabinet 100 and the surrounding environment. In complex usage environments, even if the obstacle's position is irregular, the triggering component 200 can accurately sense and trigger the protection, ensuring the safety of the hanging cabinet.

[0059] Furthermore, the plate-shaped trigger component 200 can be directly placed on the supporting cantilever 131, which can easily cause instability in the position of the trigger component 200. To address this, outwardly extending ribs 221 can be provided on opposite sides of the trigger component 200. These ribs 221 rest freely on the supporting cantilever 131. The ribs 221 increase the contact area and friction between the trigger component 200 and the supporting cantilever 131, effectively reducing its horizontal displacement and sway. Even when the cabinet is frequently raised and lowered or subjected to external vibrations, the trigger component 200 can maintain an accurate position, ensuring the reliable operation of the safety protection module. In daily use of the cabinet, frequent raising and lowering operations can cause vibrations to the trigger component 200. If the trigger component 200 lacks stability, it may shift its position, leading to false triggering or missed triggering. The design of the ribs 221 effectively solves this problem, ensuring that the trigger component 200 remains stable even in complex environments.

[0060] Furthermore, since the supporting cantilever 131 is fixed to the base plate 120, if the height of the supporting cantilever 131 is lower than the plate-like structure, the sensing component 300 will be unable to activate if the supporting cantilever 131 touches an obstacle but the triggering component 200 does not. Therefore, part of the triggering component 200 protrudes downwards from the lower surface of the supporting cantilever 131, making it easier for it to contact obstacles. During the descent of the wall cabinet, if an obstacle appears, the protruding part can sense it more quickly and be compressed. Because the protruding part is closer to the obstacle, it can quickly transfer the compressive force to the triggering component 200 upon encountering the obstacle, causing the triggering component 200 to float upwards more quickly, triggering the sensing component 300. This design optimizes the timeliness of the trigger response, more effectively preventing the storage cabinet 100 from colliding with obstacles and protecting the safety of the storage cabinet 100 and surrounding items. In practical use, the rapid trigger response can stop the wall cabinet from descending immediately, reducing damage caused by collisions.

[0061] Based on the above embodiments, the side of the triggering component 200 facing the supporting cantilever 131 can be connected to the bottom surface of the triggering component 200 by an arc transition. After the triggering component 200 touches an obstacle and floats up, it moves upward relative to the supporting cantilever 131. If the bottom surface of the triggering component 200 exceeds the top surface of the supporting cantilever 131, when the obstacle is removed or the locker 100 moves upward, the triggering component 200 begins to descend. The bottom surface of the triggering component 200 may then be positioned on the supporting cantilever 131, preventing it from returning to its normal position and affecting subsequent triggering actions or causing the sensing component 300 to remain in a triggered state. Therefore, by providing an arc transition connection between the bottom surface of the triggering component 200 and the side facing the supporting cantilever 131, the triggering component 200 can be guided during its descent relative to the supporting cantilever 131, allowing it to return to its initial position and avoiding reset delays or jamming caused by right-angled edges. In addition, the rounded transition design enhances the aesthetics of the convex trigger component 200 and prevents the right angle between the aforementioned side and bottom surfaces of the trigger component 200 from causing injury to the user or object.

[0062] Since the triggering component 200 is suspended on the supporting cantilever 131, when the triggering component 200 is obstructed by an obstacle, if the point of force is close to the center of the triggering component 200, the triggering component 200 can float vertically relative to the floating connecting member 130, meaning the entire triggering component 200 moves vertically upwards. If the obstacle contacts the triggering component 200 near its edge, the triggering component 200 will exhibit a swinging posture, with one side supported on the supporting cantilever 131 and the other side moving upwards. Compared to the traditional use of complex guiding structures such as guide posts and springs to restrict the triggering component 200, the triggering component 200 in this embodiment has no rigid guiding structure, meaning that the triggering component 200 is not limited by a fixed movement trajectory, avoiding the problem of guide posts rubbing and jamming with mounting holes due to uneven force. Whether floating vertically or swinging locally, the triggering component 200 can respond through free movement, with low movement resistance and smoother reset.

[0063] Furthermore, traditional anti-collision structures only place the sensing component 300 at the center, which can easily lead to failure of the edge area collision triggering. In order to ensure that the triggering component 200 can trigger the sensing component 300 whether it floats vertically or swings, multiple sensing components 300 are arranged along the periphery of the mezzanine space 210, so that any force applied to the triggering component 200 will trigger the nearby sensing component 300. For example, if an obstacle obstructs the front of the triggering component 200, the front of the triggering component 200 will tilt upwards and trigger the sensing component 300 located at the front of the mezzanine space 210, and the entire locker 100 will stop descending. If the obstacle is located in the middle of the triggering component 200, pushing the entire triggering component 200 vertically upwards, the triggering component 200 can trigger multiple sensing components 300 simultaneously, and the locker 100 will also stop descending.

[0064] The layout of multiple surrounding sensors 300 can also accurately capture the tilting motion of the triggering component 200. For example, when the front of the triggering component 200 swings upward, only the front sensor 300 is triggered by pressure, while the rear sensor 300 remains untriggered. Differential signals identify the collision location, providing a data basis for subsequent intelligent control (such as unilateral deceleration or voice prompts). The number or sequence of triggers on sensors 300 at different locations can reflect the collision intensity. For example, when the center of the triggering component 200 is compressed, multiple surrounding sensors 300 may trigger simultaneously, potentially indicating a "strong collision," requiring immediate cessation of the cabinet's descent. Conversely, if only a single front sensor 300 triggers, it may be considered a "weak collision," allowing for deceleration before determining whether to stop, achieving tiered response and optimizing the user experience.

[0065] Because the triggering component 200 may swing, to avoid restricting its swing, the floating connecting members 130 on both sides are fitted with the triggering component 200 with a clearance fit. This clearance fit provides the triggering component 200 with the necessary space to move, allowing it to deflect controllably in the event of a unilateral or partial collision. Furthermore, the clearance fit limits the unilateral displacement of the triggering component 200 to less than the extension length of the supporting cantilever 131, preventing the triggering component 200 from detaching from the two floating connecting members 130 due to vibration during movement within the storage cabinet 100. For example, when an obstacle impacts the front of the triggering component 200, the front side floats upward under force, while the rear side slightly shifts backward through the clearance, triggering the front sensing component 300. This design, by "restricting but not prohibiting deflection," ensures that the triggering component 200 remains in contact with the supporting cantilever 131 during deflection, maintaining effective triggering. In traditional rigid connection structures, the triggering component 200 is prone to jamming due to insufficient space when subjected to uneven force, preventing the anti-collision function from being triggered by edge collisions. This design, through clearance fit, endows the triggering component with a 200° "flexible response" capability, covering collision scenarios in the center, edges, corners, and other areas, thereby improving the sensitivity and comprehensiveness of the collision avoidance system.

[0066] Based on the above embodiments, taking a rectangular plate structure as an example, floating connecting members 130 are respectively provided on opposite sides of the lower surface of the base plate 120 in the width direction. Each floating connecting member 130 extends linearly in the length direction of the lower surface of the base plate 120. That is, a floating connecting member 130 is provided on the front and rear sides of the base plate 120, and each floating connecting member 130 is elongated. The length direction of the floating connecting member 130 is parallel to the length direction of the cabinet, that is, the floating connecting members 130 are arranged from left to right. Generally speaking, the length of the floating connecting member 130 is equivalent to the length of the triggering component 200, so as to provide sufficient support for the triggering component 200. Of course, multiple floating connecting members 130 arranged along the length direction of the lower surface of the base plate 120 can also be provided in the width direction of the lower surface of the base plate 120 to support the triggering component 200. After the floating connecting members 130 on both sides extend linearly in the length direction, the floating connecting member 130 at the front of the storage cabinet 100 forms an integrated straight edge, which significantly reduces protruding "cantilever ends" or "gap gaps" compared to a scattered point support structure. This smooth outer contour design reduces the probability of snagging on kitchen countertops, drawer handles, and other surrounding items during lifting and lowering, making it especially suitable for kitchens and other compact spaces with densely packed items, avoiding cabinet jamming or item damage caused by snagging.

[0067] Furthermore, an insertion port 132 is formed between the ends of the two floating connecting members 130 on the same side. The triggering component 200 is embedded through the insertion port 132 and rests freely on the supporting cantilever arms 131 on both sides. The triggering component 200 can be inserted between the two floating connecting members 130 without the use of tools through the insertion port 132, and the triggering component 200 is suspended, achieving plug-and-play functionality. Compared with the traditional method of lifting the triggering component 200 from below and aligning it with multiple mounting holes, the assembly steps and operational difficulty are significantly reduced. When maintaining or replacing the triggering component 200, it can be pulled out laterally in the reverse direction without disassembling the base plate 120, floating connecting members 130 or other surrounding components. The maintenance time can be shortened to minutes. Through the design of "insertion port 132 + lateral embedding", the installation of the triggering component 200 is simplified from the traditional "three-dimensional assembly" to "planar sliding". This not only subverts the traditional installation method of anti-collision components, but also solves the assembly problem caused by the narrow space at the bottom of the wall cabinet through the compact and modular structural design. This innovation embodies the design philosophy of "user experience as the core" (such as tool-free installation and quick maintenance), and enhances the stability and security of the system through a hidden structure and continuous support. It is a typical example of the combination of "technical simplicity and functional completeness" of this utility model.

[0068] Furthermore, the storage cabinet 100 is provided with side panels 150 on both the left and right sides. After the triggering component 200 rests on the supporting cantilever arms 131 on both sides, the side panel 150 corresponding to the insertion port 132 on the storage cabinet 100 covers the insertion port 132. The physical barrier formed by the side panel 150 can limit the lateral displacement range of the triggering component 200. Even if the triggering component 200 deflects due to force, it cannot detach from the supporting cantilever arm 131 from the insertion port 132, preventing the anti-collision function from failing due to component detachment. After the insertion port 132 is covered by the side panel 150, the bottom of the storage cabinet 100 presents a complete and smooth outline without exposed installation gaps or mechanical interfaces, which matches the integrated design of the wall cabinet side panel 150 and meets the aesthetic requirements of "simple and beautiful" in modern homes. The side panel 150 serves as a lateral positioning reference during the installation of the trigger component 200, ensuring that the trigger component 200 is inserted into the insertion port 132 in the correct direction, thus avoiding uneven stress on the supporting cantilever 131 caused by tilted installation. By concealing the insertion port 132 with the side panel 150, the seemingly simple "installation interface concealment" is transformed into multiple technical advantages of protection, aesthetics, and reliability. This design not only solves the potential hazards of open installation structures (such as foreign object intrusion and component detachment), but also enhances the overall quality of the wall cabinet as a home furnishing product through aesthetic optimization and interference isolation. Its core value lies in: perfecting system functionality through detailed design, and balancing practicality and aesthetics through structural innovation, fully demonstrating the technological maturity and user experience considerations of this utility model in the field of lift cabinet safety.

[0069] In this embodiment, the strain sensing component 300 is a piezoelectric element or a strain gauge. Using these two components in the safety protection module of the electric wall cabinet ensures stable system operation. When subjected to pressure, the piezoelectric element stably generates an electrical signal proportional to the pressure; the strain gauge accurately reflects the strain through its own resistance change. Even after prolonged use or in complex environments, such as a kitchen environment with significant temperature and humidity variations, they maintain good working condition, providing reliable protection for the safe operation of the wall cabinet. The manufacturing processes for piezoelectric elements and strain gauges are mature, and product quality is controllable, reducing the risk of safety protection module failure due to component malfunction. These two components effectively convert the mechanical motion of the triggering component 200 into an electrical signal. When the triggering component 200 is squeezed by an obstacle and moves in the opposite direction, the piezoelectric element quickly generates an electrical signal, and the strain gauge also transmits a signal through resistance change, promptly triggering the safety protection mechanism. This efficient signal conversion capability allows the safety protection module to respond quickly to the appearance of obstacles, stopping the wall cabinet's lifting and lowering in time to avoid collisions or pinching accidents. During the descent of the hanging cabinet, once the triggering component 200 contacts an obstacle, the piezoelectric element or strain gauge immediately converts the movement of the triggering component 200 into an electrical signal, which is transmitted to the control system, causing the hanging cabinet to stop descending quickly and protecting the safety of the hanging cabinet and surrounding items. In addition to using a piezoelectric element, the sensing component 300 can also use a traditional micro switch or other trigger switch, which is activated when the triggering component 200 floats.

[0070] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An electric hanging cabinet with a lowering anti-collision function, characterized in that, include: A storage cabinet that moves up and down has a base plate at the bottom. The lower surface of the base plate has floating connecting members on opposite sides. The floating connecting members on both sides have supporting cantilever arms that extend towards each other. The triggering component is a plate-shaped structure that rests freely on the supporting cantilever arms on both sides to achieve a floating connection with the base plate. A sandwich space is formed between the triggering component and the base plate. The triggering component floats upward when it is squeezed by obstacles during the descent of the locker. The sensing component is located in the interlayer space and its action is triggered by the upward floating of the triggering component.

2. The electric hanging cabinet with lowering anti-collision function as described in claim 1, characterized in that, The triggering component has outwardly extending ribs on opposite sides, which rest freely on the supporting cantilever.

3. The electric hanging cabinet with lowering anti-collision function as described in claim 2, characterized in that, Some of the trigger components protrude downwards from the lower surface of the supporting cantilever.

4. The electric hanging cabinet with lowering anti-collision function as described in claim 3, characterized in that, The side of the triggering component facing the supporting cantilever is connected to the bottom surface of the triggering component by a rounded transition.

5. The electric hanging cabinet with lowering anti-collision function as described in claim 1, characterized in that, The triggering component floats vertically relative to the floating connecting component; or, the triggering component partially supports the cantilever and causes it to swing.

6. The electric hanging cabinet with lowering anti-collision function as described in claim 5, characterized in that, Multiple sensing components are provided along the periphery of the mezzanine space.

7. The electric hanging cabinet with lowering anti-collision function as described in claim 5, characterized in that, The floating connecting components on both sides are fitted with the triggering component with a clearance fit, which limits the single-sided displacement of the triggering component to be less than the extension length of the supporting cantilever.

8. The electric hanging cabinet with lowering anti-collision function as described in claim 1, characterized in that, Floating connecting members are respectively provided on opposite sides of the lower surface of the base plate in the width direction, and each floating connecting member extends linearly in the length direction of the lower surface of the base plate.

9. The electric hanging cabinet with lowering anti-collision function as described in claim 8, characterized in that, An insertion port is formed between the ends of the two floating connecting members on the same side, and the triggering component is laterally embedded through the insertion port and freely rests on the supporting cantilever on both sides.

10. The electric hanging cabinet with lowering anti-collision function as described in claim 9, characterized in that, The storage cabinet has side panels on its left and right sides respectively. The side panel corresponding to the insertion port on the storage cabinet covers the insertion port after the triggering component is placed on the supporting cantilever on both sides.

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