Lifting cabinet with anti-pinch function

Abstract

A lifting cabinet with an anti-pinch function comprises a cabinet body, side plates are installed on the two sides of the inner wall of the cabinet body in a lifting mode through lifting assemblies, and a plurality of layer plates are connected to the two side plates in a crossing mode; and a bottom plate is detachably mounted at the bottom of the side plate through a switch base. An anti-pinch device is arranged between the layer plate and the side plate, the anti-pinch device comprises a fence hinged to the inner end of the switch base, a gap is reserved between the periphery of the layer plate and the fence to form an activity area, and the fence swings in the activity area around a hinge point; the anti-pinch device further comprises a sliding seat embedded at the outer end of the switch seat in a sliding mode and an anti-pinch switch located at the bottom of the sliding seat, the end face of the sliding seat is connected with a driving seat in a protruding mode, one side of the fence is arranged on the driving seat in a sleeved mode, the fence is pressed downwards to drive the sliding seat to move downwards to trigger the anti-pinch switch, and the lifting assembly stops moving. The anti-pinch device mechanism is started before pinching happens, the lifting assembly is actively interrupted from continuing to move, and the safety performance of the lifting cabinet is remarkably improved.

Description

Technical Field

[0001] This utility model relates to a lifting cabinet, specifically a lifting cabinet with an anti-pinch function. Background Technology

[0002] To enhance the use of vertical space, modern furniture often incorporates lift-up cabinets mounted on high walls to optimize storage and improve user convenience. These are widely used in residential and commercial spaces such as kitchens and offices. However, during use, the lifting mechanism moves the inner cabinets up and down, and users' hands may accidentally get caught in the gaps between the shelves. Because the lifting mechanism typically has significant driving force and moves quickly to maximize efficiency, users often cannot react in time, posing a significant risk of pinching injuries. This is especially true in homes with elderly people and young children, whose slower reaction times and heightened curiosity make them more susceptible to triggering the mechanism and lack of awareness about potential hazards. Furthermore, in a busy kitchen cooking environment, users' attention is more easily distracted, leading to a series of accidents. The lack of anti-pinch features in existing lift-up cabinets may cause users to hesitate to use them, reducing their practicality and convenience and limiting their potential value in real-world applications. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a lifting cabinet with anti-pinch function that is simple in structure, low in manufacturing cost, actively prevents the danger of pinching fingers, has sufficient reliability and safety stability, and improves the user experience.

[0004] The purpose of this utility model is achieved in the following way: a lifting cabinet with anti-pinch function, which includes a cabinet body, side panels that are lifted and installed on both sides of the inner wall of the cabinet body through a lifting assembly, and several layers of panels that are horizontally connected to the side panels; a bottom plate is detachably installed at the bottom of the side panels through a switch base.

[0005] An anti-pinch device is provided between the shelf and the side plate. The anti-pinch device includes a fence that is hinged to the inner end of the switch base. The outer periphery of the shelf is recessed and there is a gap between the fence and the fence to form an active area. The fence swings around the hinge point in the active area.

[0006] The anti-pinch device also includes a sliding seat that is slidably embedded in the outer end of the switch seat, and an anti-pinch switch located at the bottom of the sliding seat. The end face of the sliding seat is connected to a drive seat. One side of the fence is fitted onto the drive seat. When the fence is pressed down, it causes the sliding seat to move down and triggers the anti-pinch switch, and the lifting component stops moving.

[0007] The outer end of the switch base is provided with a frame-shaped movable groove, and the sliding seat is built into the movable groove and can slide along the axial direction of the movable groove; the top of the movable groove extends inward to form a baffle, and the sliding seat is locked under the baffle.

[0008] The side wall of the movable slot is provided with a drive slot, and the drive seat is clamped and connected in the drive slot.

[0009] The bottom of the sliding seat extends to form a drive column, which passes through the bottom of the movable groove and is provided with an anti-pinch groove. The drive column moves down, passes through the anti-pinch groove, and connects with the anti-pinch switch.

[0010] The drive column is fitted with a spring. One end of the spring presses against the sliding seat, and the other end presses against the bottom of the movable groove. The spring generates an upward thrust, pushing the sliding seat to slide upward. The anti-pinch switch is always in the ready-to-trigger state.

[0011] The inner wall of the drive seat protrudes to form a insertion shaft, which passes through the drive groove and connects to the sliding seat in sequence; the outer wall of the drive seat protrudes to form a drive shaft, and the mounting hole provided by the fence is sleeved on the drive shaft.

[0012] The inner wall of the side plate has a limiting groove, through which the drive shaft passes and protrudes to connect with the fence.

[0013] The drive seat body is arranged in a long, waist-shaped configuration that extends vertically.

[0014] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0015] 2. The anti-pinch device mechanism is activated before a pinching injury occurs, actively interrupting the movement of the lifting component, effectively preventing the lifting component from moving up and down, significantly improving the safety performance of the lifting cabinet, and meeting the safety needs of different user groups.

[0016] 3. The movement stroke and direction of the sliding seat are restricted and locked to ensure sliding stability, ensure direct triggering of the anti-pinch switch, minimize the risk of pinching injury, and have sufficient reliability and stability.

[0017] 4. Users can operate the lifting cabinet with confidence, make full use of its storage function, improve the user experience, and enhance user confidence in the lifting cabinet product.

[0018] 5. As the central linkage component, the drive unit transmits movements precisely, and the coordinated cooperation of its components forms an efficient anti-pinch protection mechanism.

[0019] 6. The anti-pinch device does not occupy additional storage space inside the lifting cabinet, thus improving the overall structure and aesthetics of the lifting cabinet. Attached Figure Description

[0020] Figure 1 This is a rendering of the final assembly of this utility model.

[0021] Figure 2 This is a schematic diagram of the anti-pinch device and the shelf in this utility model.

[0022] Figure 3 This is a structural assembly drawing of the anti-pinch device, fence, and shelf in this utility model.

[0023] Figure 4 This is a structural assembly drawing of the anti-pinch device and switch base in this utility model.

[0024] Figure 5 This is a schematic diagram of the back structure of the switch holder in this utility model.

[0025] Figure 6 This is a structural assembly drawing of the sliding seat and switch seat in this utility model.

[0026] Figure 7 This is a schematic diagram of the drive seat in this utility model. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings. A lifting cabinet with anti-pinch function includes a cabinet body 1, side panels 11 are installed on both sides of the inner wall of the cabinet body 1 by means of a lifting assembly, and several shelves 2 are connected across the side panels 11; a bottom plate 12 is detachably installed at the bottom of the side panels 11 by means of a switch base 3.

[0028] An anti-pinch device is provided between the shelf 2 and the side plate 11. The anti-pinch device includes a fence 41 that is hinged to the inner end of the switch base 3. The outer periphery of the shelf 2 is recessed and the fence 41 is left open to form an active area 21. The fence 41 swings around the hinge point in the active area 21.

[0029] The anti-pinch device also includes a sliding seat 42 that is slidably embedded in the outer end of the switch seat 3, and an anti-pinch switch 43 located at the bottom of the sliding seat 42. The end face of the sliding seat 42 is connected to a drive seat 5. One side of the fence 41 is fitted onto the drive seat 5. When the fence 41 is pressed down, it causes the sliding seat 42 to move down and triggers the anti-pinch switch 43, and the lifting component stops moving.

[0030] The switch base 3 has a frame-shaped movable groove 6 at its outer end. The sliding seat 42 is built into the movable groove 6 and can slide along the axial direction of the movable groove 6. The top of the movable groove 6 extends inward to form a baffle 61, and the sliding seat 42 is locked under the baffle 61.

[0031] The side wall of the movable groove 6 is provided with a drive groove 62, and the drive seat 5 is clamped and connected in the drive groove 62.

[0032] The bottom of the sliding seat 42 extends to form a drive column 421, which passes through the bottom of the movable groove 6 and is provided with an anti-pinch groove 63. The drive column 421 moves down and passes through the anti-pinch groove 63 to connect with the anti-pinch switch 43.

[0033] A spring 7 is fitted on the outside of the drive column 421. One end of the spring 7 presses against the sliding seat 42, and the other end presses against the bottom of the movable groove 6. The spring 7 generates an upward pushing force, pushing the sliding seat 42 to slide upward. The anti-pinch switch 43 is always in the ready-to-trigger state.

[0034] The inner wall of the drive seat 5 protrudes to form a insertion shaft 51, which passes through the drive groove 62 and connects to the sliding seat 42 in sequence; the outer wall of the drive seat 5 protrudes to form a drive shaft 52, and the mounting hole 411 of the fence 41 is sleeved on the drive shaft 52.

[0035] The inner wall of the side plate 11 has a limiting groove 13, through which the drive shaft 52 passes and protrudes to connect with the fence 41.

[0036] The main body of the drive seat 5 is arranged in a long, waist-shaped configuration that extends vertically.

[0037] Working Principle: An anti-pinch device is installed between the shelf and side panel of the lifting cabinet. This device includes a guardrail hinged to the inner end of the switch base, the guardrail being similar in shape to the shelf. A recessed area on the outer periphery of the shelf, with space between it and the guardrail, forms a movable zone. The guardrail can swing up and down within this movable zone around the hinge point. The anti-pinch device also includes a sliding seat slidably mounted on the outer end of the switch base, with an anti-pinch switch installed below the bottom of the sliding seat. A drive seat protrudes from the sliding seat to connect with the guardrail, and one end of the guardrail is fitted into this drive seat.

[0038] When the lifting cabinet is in normal working condition, the railing remains stationary relative to the shelf, and is not triggered by the anti-pinch switch. At this time, the lifting assembly can freely drive the shelf and side panel to move up and down. When the user's hand or other objects accidentally touch the railing, or when the shelf is subjected to external force during lifting, the shelf is compressed, which in turn puts downward pressure on the railing. The lifting assembly continues to rise or fall, and the inner end of the railing swings around the hinge point within the moving area.

[0039] It should be noted that at this time, one end of the fence is subjected to the lifting force of the lifting assembly, while the other end swings downward around the hinge point under the downward driving force, driving the sliding seat to move downward along the movable groove via the drive seat. At this time, the drive column of the sliding seat passes through the clearance groove and connects with the anti-pinch switch, triggering the anti-pinch switch to start. The anti-pinch switch immediately sends a feedback signal to the lifting assembly, which stops the lifting movement, thus preventing the lifting cabinet from continuing to rise and fall, and protecting the user's hands from being pinched.

[0040] The anti-pinch device activates before a pinching injury occurs, actively interrupting the movement of the lifting assembly. This is completely different from existing technologies that lack anti-pinch mechanisms or rely solely on passively controlling emergency stop buttons. The anti-pinch device can detect whether a user has touched the barrier before a potential pinching hazard occurs and immediately activate the anti-pinch switch, effectively preventing the lifting assembly from moving up and down. This significantly improves the safety performance of the lifting cabinet, making it especially suitable for elderly people or children with reduced reflexes, and meeting the safety needs of different user groups.

[0041] Meanwhile, to ensure the normal operation of the lifting assembly in the next operation, a spring is fitted on the outside of the drive seat. One end of the spring presses against the sliding seat, while the other end presses against the movable groove. The spring always provides an upward thrust to the sliding seat. When the user's hand leaves the fence, the spring's thrust pushes the sliding seat to slide upward along the movable groove. The drive column disengages from the anti-pinch switch, the anti-pinch switch returns to the ready-to-trigger state, the fence also resets to its initial position, and the lifting assembly returns to its normal working state, waiting for the next lifting operation.

[0042] The sliding seat, through its movable groove and top baffle, restricts its movement to within the movable groove, locking its travel and direction. This ensures the sliding stability of the sliding seat, enabling it to respond quickly and ensuring the anti-pinch switch is triggered directly, minimizing the risk of pinching injuries and providing continuous safety for users. With sufficient reliability and stability, users can operate the lifting cabinet with confidence, fully utilize its storage function, enhance the user experience, and increase user confidence in the lifting cabinet product.

[0043] As a central linkage component, the drive seat has an inner wall that protrudes to form a shaft. The shaft passes through the drive groove and connects to the sliding seat. The outer wall of the drive seat has a protruding drive shaft. The mounting holes at the ends of the fence are fitted onto the drive shaft. The structure is simple and the manufacturing cost is low. The drive seat links the fence and the sliding seat, ensuring precise motion transmission. The coordinated operation of the components forms an efficient anti-pinch protection mechanism. It does not occupy additional storage space inside the lifting cabinet, nor does it expose the components and affect the overall structure and aesthetics of the lifting cabinet. Therefore, it can be widely promoted.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A lifting cabinet with anti-pinch function, comprising a cabinet body (1), side panels (11) being installed on both sides of the inner wall of the cabinet body (1) via lifting components, and several shelves (2) being connected across the side panels (11); a bottom plate (12) is detachably installed at the bottom of the side panels (11) via a switch base (3), characterized in that: An anti-pinch device is provided between the shelf (2) and the side plate (11). The anti-pinch device includes a fence (41) hinged to the inner end of the switch base (3). The outer periphery of the shelf (2) is recessed and the fence (41) is left empty to form an active area (21). The fence (41) swings around the hinge point in the active area (21). The anti-pinch device also includes a sliding seat (42) that is slidably embedded in the outer end of the switch seat (3), and an anti-pinch switch (43) located at the bottom of the sliding seat (42). The end face of the sliding seat (42) is connected to a drive seat (5). One side of the fence (41) is fitted onto the drive seat (5). When the fence (41) is pressed down, it causes the sliding seat (42) to move down and trigger the anti-pinch switch (43), and the lifting component stops moving.

2. A lifting cabinet with anti-pinch function according to claim 1, characterized in that: The switch base (3) has a frame-shaped movable groove (6) at its outer end. The sliding seat (42) is built into the movable groove (6) and can slide along the axial direction of the movable groove (6). The top of the movable groove (6) extends inward to form a baffle (61), and the sliding seat (42) is placed under the baffle (61).

3. A lifting cabinet with anti-pinch function according to claim 2, characterized in that: The side wall of the movable groove (6) is provided with a drive groove (62), and the drive seat (5) is clamped and connected in the drive groove (62).

4. A lifting cabinet with anti-pinch function according to claim 2, characterized in that: The sliding seat (42) extends to form a drive column (421) at the bottom, and passes through the bottom of the movable groove (6) to form an anti-pinch groove (63). The drive column (421) moves down through the anti-pinch groove (63) and connects with the anti-pinch switch (43).

5. A lifting cabinet with anti-pinch function according to claim 4, characterized in that: The drive column (421) is fitted with a spring (7). One end of the spring (7) presses against the sliding seat (42), and the other end presses against the bottom of the movable groove (6). The spring (7) generates an upward thrust, pushing the sliding seat (42) to slide upward. The anti-pinch switch (43) is always in the ready-to-trigger state.

6. A lifting cabinet with anti-pinch function according to claim 1, characterized in that: The inner wall of the drive seat (5) protrudes to form a plug shaft (51), which passes through the drive groove (62) and connects to the sliding seat (42); the outer wall of the drive seat (5) protrudes to form a drive shaft (52), and the mounting hole (411) of the fence (41) is sleeved on the drive shaft (52).

7. A lifting cabinet with anti-pinch function according to claim 6, characterized in that: The inner wall of the side plate (11) has a limiting groove (13), through which the drive shaft (52) passes and protrudes to connect with the fence (41).

8. A lifting cabinet with anti-pinch function according to claim 6, characterized in that: The main body of the drive seat (5) is arranged in a long waist shape that extends vertically.

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