Electric lifting basket and storage cabinet

Abstract

The utility model belongs to the field of kitchen utensils, concretely relates to a kind of electric lifting pull basket and storage cabinet, pull basket includes fixed frame, pulling device, bearing basket body and elastic compensation mechanism, the pulling device is located on fixed frame, and bearing basket body is liftablely located on fixed frame by guide rail assembly, the pulling device includes driving motor and traction mechanism, the driving motor is transmission connection with bearing basket body by traction mechanism, one end of the elastic compensation mechanism is located on fixed frame, other end is connected with bearing basket body.In addition, storage cabinet has applied the pull basket scheme described above.Compared with prior art, the utility model can effectively reduce motor peak torque demand and operating noise, simultaneously by sharing static load, the service life of traction mechanism is significantly prolonged, realizes the comprehensive technical effect of load balancing, running smooth, energy saving and noise reduction.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen utensils, specifically an electric lifting pull-out basket and storage cabinet. Background Technology

[0002] Currently, electric pull-out baskets for kitchen cabinets mainly use a motor-driven steel cable or a rack and pinion mechanism to achieve their lifting function. In traditional solutions, the motor directly drives the basket through the steel cable or gears, and its load-bearing capacity depends entirely on the motor's output torque. This structure has significant drawbacks: First, when the basket is heavily loaded, the motor needs to provide a larger starting torque, which not only increases energy consumption and noise but also shortens the motor's lifespan; second, the steel cable is under high tension for extended periods, making it prone to metal fatigue and posing a risk of breakage; furthermore, to meet load-bearing requirements, high-power motors are often required, leading to increased costs.

[0003] To address the aforementioned issues, existing technologies have introduced improved solutions through control algorithm optimization. These solutions adjust the motor drive signal in real time by detecting load changes, employing a soft-start strategy during startup, maintaining a constant speed during operation, and implementing braking control during shutdown. However, these control algorithm-based improvements have inherent limitations: firstly, algorithm optimization can only alleviate the impact during start-up and shutdown, failing to fundamentally reduce the actual load on the motor during operation; secondly, complex control algorithms require higher-performance controllers, increasing system cost and debugging difficulty. Furthermore, under sudden load changes, the response delay of the control system can still lead to unstable operation.

[0004] Therefore, there is an urgent need for a new type of lifting solution that can effectively share the motor load, improve operational stability, and has a simple structure. This solution should address the fundamental issues from the perspective of mechanical structure design. Utility Model Content

[0005] The purpose of this invention is to overcome the problems of existing pull-out basket lifting schemes that cannot effectively share the motor load, are not stable enough in operation, and have complex structures, and to provide an electric lifting pull-out basket.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An electric lifting basket includes a fixed frame, a pulling device, a carrying basket, and an elastic compensation mechanism. The pulling device is mounted on the fixed frame, and the carrying basket is vertically mounted on the fixed frame via a guide rail assembly. The pulling device includes a drive motor and a traction mechanism. The drive motor is connected to the carrying basket via the traction mechanism. One end of the elastic compensation mechanism is mounted on the fixed frame, and the other end is connected to the carrying basket.

[0008] This invention features a lifting structure with an elastic compensation mechanism that works in conjunction with the motor drive system. During the basket's descent, the elastic mechanism is stretched to store energy, generating a gradually increasing compensating force against gravity, thus reducing the motor load. During the basket's ascent, the stored elastic potential energy is released to assist in lifting. Compared to existing technologies, this invention effectively reduces the motor's peak torque requirement and operating noise, allowing for the selection of smaller power motors. Simultaneously, by sharing the static load, it significantly extends the lifespan of the traction mechanism, achieving a comprehensive technical effect of load balance, smooth operation, energy saving, and noise reduction.

[0009] Furthermore, the elastic compensation mechanism includes a tension spring, and the guide rail assembly includes a fixed rail and a movable rail that are slidably connected. The fixed rail is fixed to the fixed frame, and the movable rail is fixedly connected to the carrying basket. The movable rail is provided with a first connecting hole, and the end of the tension spring is provided with a hook. The tension spring is connected to the first connecting hole of the movable rail through the hook, thereby connecting the carrying basket to the elastic compensation mechanism through the movable rail.

[0010] Furthermore, the elastic compensation mechanism includes a fixing block, which is disposed on a fixed frame and has a second connecting hole. Both ends of the tension spring are provided with hooks, and the tension spring is connected to the second connecting hole through the hooks.

[0011] Furthermore, the traction mechanism includes a traction cable and a steering device. The drive motor is located in the middle of the fixed frame, and the steering device is installed on both sides of the fixed frame. The drive output shaft of the drive motor is equipped with a winding wheel. One end of the traction cable is fixed in the winding groove of the winding wheel, and the other end is connected to the carrying basket through the steering device.

[0012] Furthermore, a steel cable fixing device is provided in the middle of the supporting basket, and it is connected to the traction steel cable through the steel cable fixing device.

[0013] Furthermore, the steering device includes a fixed pulley and a pulley mounting base, wherein the fixed pulley is axially rotatably mounted on a fixed frame via the pulley mounting base.

[0014] Furthermore, the fixing frame is a hollow shell with openings on both sides of the bottom.

[0015] Furthermore, the fixed frame includes a top plate, a bottom plate, and side plates connected between the two edges. The bottom plate has clearance openings on both sides. One end of the pulling device, guide rail assembly, and elastic compensation mechanism is fixed to the top plate, and the other end passes through the clearance opening and is connected to the load-bearing basket.

[0016] Another objective of this invention is to provide a storage cabinet, which includes a cabinet body, a controller, and an electric lifting pull-out basket as described above. The bottom of the cabinet body is provided with an opening, and the bottom of the basket body is provided with a support plate. The support plate abuts against the opening, and the controller is located on the top plate.

[0017] Furthermore, support rods are connected to opposite sides of the support plate. The support rods have a U-shaped cross-section and are slidably sleeved on the fixed rail. Attached Figure Description

[0018] Figure 1 Schematic diagram of the pull-out basket structure Figure 1 ;

[0019] Figure 2 for Figure 1 Enlarged view of part A;

[0020] Figure 3 Schematic diagram of the pull-out basket structure Figure 2 ;

[0021] Figure 4 for Figure 3 Enlarged view of part B.

[0022] Label Explanation:

[0023] Fixed frame 1, top plate 11, side plate 12, pulling device 2, drive motor 21, steering device 23, fixed pulley 231, pulley mounting seat 232, bearing basket 4, support rod 41, support plate 42, elastic compensation mechanism 5, tension spring 51, fixing block 52, second connecting hole 521, guide rail assembly 7, fixed rail 71, movable rail 72, first connecting hole 73, steel cable fastener 74. Detailed Implementation

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] See Figure 1-4As shown, this utility model discloses an electric lifting basket, including a fixed frame 1, a pulling device 2, a supporting basket 4, and an elastic compensation mechanism 5. The pulling device 2 is mounted on the fixed frame 1, and the supporting basket 4 is mounted on the fixed frame 1 in a liftable manner via a guide rail assembly 7. The pulling device 2 includes a drive motor 21 and a traction mechanism. The drive motor 21 is connected to the supporting basket 4 via the traction mechanism. One end of the elastic compensation mechanism 5 is mounted on the fixed frame 1, and the other end is connected to the supporting basket 4.

[0027] The aforementioned elastic compensation mechanism 5 includes a tension spring 51. The guide rail assembly 7 includes a fixed rail 71 and a movable rail 72 that are slidably connected. The fixed rail 71 is fixed on the fixed frame 1, and the movable rail 72 is fixedly connected to the carrying basket 4. The movable rail 72 is provided with a first connecting hole 73. The end of the tension spring 51 is provided with a hook. The tension spring 51 is connected to the first connecting hole 73 of the movable rail 72 through the hook, thereby connecting the carrying basket 4 to the elastic compensation mechanism 5 through the movable rail 72.

[0028] The aforementioned elastic compensation mechanism 5 includes a fixing block 52, which is disposed on the fixing frame 1 and has a second connecting hole 521. Both ends of the tension spring 51 are provided with hooks, and the tension spring 51 is connected to the second connecting hole 521 through the hooks.

[0029] The aforementioned traction mechanism includes a traction cable and a steering device 23. The drive motor 21 is located in the middle of the fixed frame 1, and the steering device 23 is installed on both sides of the fixed frame 1. The drive output shaft of the drive motor 21 is equipped with a winding wheel. One end of the traction cable is fixed in the winding groove of the winding wheel, and the other end is connected to the carrying basket 4 through the steering device 23.

[0030] The aforementioned support basket 4 is provided with a steel cable fastener 74 in the middle, and is connected to the traction steel cable through the steel cable fastener 74.

[0031] The aforementioned steering device 23 includes a fixed pulley 231 and a pulley mounting base 232. The fixed pulley 231 is axially rotatably mounted on the fixed frame 1 via the pulley mounting base 232.

[0032] The fixed frame 1 is a hollow shell with clearance openings on both sides of the bottom of the shell (not shown in the figure). The fixed frame 1 includes a top plate 11, a bottom plate (not shown in the figure), and a side plate 12 connected between the two edges. The bottom plate has clearance openings on both sides. One end of the pulling device 2, the guide rail assembly 7, and the elastic compensation mechanism 5 is fixed to the top plate 11, and the other end passes through the clearance opening and is connected to the bearing basket 4.

[0033] The lifting structure of this invention features an elastic compensation mechanism 5 that works in conjunction with the motor drive system: during the descent phase, the elastic mechanism is stretched and stores energy, generating a gradually increasing compensating force opposite to gravity, thus reducing the motor load; during the ascent phase, the stored elastic potential energy is released to assist in lifting. Compared with existing technologies, this invention effectively reduces the peak torque requirement of the motor and operating noise, while significantly extending the lifespan of the traction mechanism by sharing the static load, achieving a comprehensive technical effect of load balancing, smooth operation, energy saving, and noise reduction.

[0034] This utility model also discloses a storage cabinet (not shown in the figure), which includes a cabinet body, a controller and an electric lifting pull-out basket as described above. The bottom of the cabinet body is provided with an opening, and the bottom of the basket body is provided with a support plate 42. The support plate 42 abuts against the opening, and the controller is located on the top plate 11.

[0035] Support rods 41 are connected to opposite sides of the support plate 42. The cross-section of the support rod is U-shaped and the support rod is slidably sleeved on the fixed rail 71.

[0036] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An electric lifting pull-out basket, characterized in that, The device includes a fixed frame, a pulling device, a carrying basket, and an elastic compensation mechanism. The pulling device is mounted on the fixed frame, and the carrying basket is vertically mounted on the fixed frame via a guide rail assembly. The pulling device includes a drive motor and a traction mechanism. The drive motor is connected to the carrying basket via the traction mechanism. One end of the elastic compensation mechanism is mounted on the fixed frame, and the other end is connected to the carrying basket.

2. The pull-out basket according to claim 1, characterized in that, The elastic compensation mechanism includes a tension spring, and the guide rail assembly includes a fixed rail and a movable rail that are slidably connected. The fixed rail is fixed to the fixed frame, and the movable rail is fixedly connected to the carrying basket. The movable rail is provided with a first connecting hole, and the end of the tension spring is provided with a hook. The tension spring is connected to the first connecting hole of the movable rail through the hook, thereby connecting the carrying basket to the elastic compensation mechanism through the movable rail.

3. The pull-out basket according to claim 2, characterized in that, The elastic compensation mechanism includes a fixing block, which is mounted on a fixed frame and has a second connecting hole. Both ends of the tension spring are provided with hooks, and the tension spring is connected to the second connecting hole through the hooks.

4. The pull-out basket according to claim 3, characterized in that, The traction mechanism includes a traction cable and a steering device. The drive motor is located in the middle of the fixed frame, and the steering device is installed on both sides of the fixed frame. The drive output shaft of the drive motor is equipped with a winding wheel. One end of the traction cable is fixed in the winding groove of the winding wheel, and the other end is connected to the carrying basket through the steering device.

5. The pull-out basket according to claim 4, characterized in that, The middle part of the load-bearing basket is equipped with a steel cable fixing device, which is connected to the traction steel cable.

6. The pull-out basket according to claim 4, characterized in that, The steering device includes a fixed pulley and a pulley mounting base, wherein the fixed pulley is axially rotatably mounted on a fixed frame via the pulley mounting base.

7. The pull-out basket according to claim 1, characterized in that, The fixed frame is a hollow shell with openings on both sides of the bottom.

8. The pull-out basket according to any one of claims 1-4, characterized in that, The fixed frame includes a top plate, a bottom plate, and side plates connected between the two edges. The bottom plate has clearance openings on both sides. One end of the pulling device, guide rail assembly, and elastic compensation mechanism is fixed to the top plate, and the other end passes through the clearance opening and is connected to the load-bearing basket.

9. A storage cabinet, comprising a cabinet body, a controller, and an electric lifting pull-out basket according to any one of claims 1-8, wherein the bottom of the cabinet body is provided with an opening, the bottom of the basket body is provided with a support plate, the support plate abutting against the opening, and the controller is disposed on the top plate.

10. The locker according to claim 9, characterized in that, Support rods are connected to opposite sides of the support plate. The cross-section of the support rods is U-shaped, and the support rods are slidably sleeved on the fixed rail.

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