A lift basket in place adjustment device

Abstract

A lifting basket positioning adjustment device is disclosed. A motor inside an electrical box pulls a lifting frame with a basket along a guide rail via a traction rope. The traction rope is equipped with a trigger block that can be fixed by a locking device. A positioning device is installed inside the electrical box. The motor, via the traction rope, moves the trigger block to its designated position, triggering the positioning device and stopping the motor. The locking device includes an adjusting block, a spring, a fixing block, and a ball bearing installed within the trigger block. Squeezing the adjusting block unlocks it, and releasing it automatically fixes it to the traction rope. This lifting basket positioning adjustment device has a simple structure, a wide adjustment range, and high applicability. It also effectively improves the convenience of installation, maintenance, and adjustment, reduces operational difficulty, and allows general users to adjust it independently as needed.

Description

Technical Field

[0001] This invention relates to a pull-out basket, and more particularly to an adjusting device for adjusting the pull-out basket to rise to a desired position. Background Technology

[0002] To overcome the inconvenience of accessing items in traditional fixed wall cabinets, people are increasingly installing liftable pull-out baskets. A liftable pull-out basket consists of an electrical box installed at the top of the cabinet, guide rails on both sides of the cabinet, and a lifting frame holding the basket. A motor inside the electrical box pulls the lifting frame along the guide rails via a traction rope, controlling the lifting frame and the basket to extend downwards from an opening at the bottom of the cabinet, or to extend upwards to close the opening. Furthermore, to ensure the lifting frame can accurately reach the desired position and adapt to wall cabinets of different heights, the liftable pull-out basket also needs an adjustable stopping device.

[0003] Some existing pull-out baskets integrate the adjustment mechanism onto the motor, such as a gear plate controlling the rotational stroke, thus controlling the basket's vertical movement. While this type of adjustment is simple in structure, it is extremely difficult to operate, requiring professional disassembly of the electrical box. Other pull-out baskets install sensors or position switches within the electrical box, and then install levers or rubber sleeves at corresponding positions on the lifting frame, adjustable via screws or bolts. To use, the screws are loosened, the lever position adjusted, and then tightened again, or the extension length of the rubber sleeve is adjusted by the depth of the bolt's screw, thereby changing the height of the trigger. This type of adjustment requires tools and has a limited adjustable range, making it difficult to meet the installation needs of different cabinets and pull-out baskets. Furthermore, the trigger is located at the top of the lifting frame, usually hidden inside the cabinet, which also presents significant operational difficulties for workers using tools. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and easy-to-adjust lifting basket positioning adjustment device, so that users can quickly and accurately adjust the lifting height of the lifting basket.

[0005] The lifting basket positioning adjustment device of the present invention includes an electrical box installed on the top of the cabinet and containing a motor, guide rails installed on both sides of the cabinet, a lifting frame with a lifting basket connected to the guide rails and moving along the guide rails, and a traction rope with the motor and the lifting frame connected at both ends respectively; a movable trigger block is connected to the traction rope, and a locking device is installed between the trigger block and the traction rope to fix the trigger block to the traction rope; and a fixed positioning device is installed. When the trigger block moves to the position, it triggers the positioning device to control the motor to stop.

[0006] The lifting basket positioning adjustment device of this invention uses a motor in the electrical box to drive the lifting frame along the guide rail via a traction rope. As the motor gradually releases the traction rope, the lifting frame slowly descends under gravity. Conversely, as the motor retracts the rope, the traction rope pulls the lifting frame upwards. During this process, the trigger block moves synchronously with the lifting frame as the traction rope is released and retracted, until it reaches a set position and triggers the positioning device. The positioning device sends a signal to the control system, which then stops the motor from releasing and retracting the rope, and the lifting frame also stops rising and falling. When the lifting height needs adjustment, for example, if the bottom of the lifting frame cannot accurately close the opening at the bottom of the cabinet, the user can unlock the trigger block using a locking device, allowing it to move along the traction rope until it reaches the appropriate position. The user then re-locks the trigger block using the locking device, thus changing the length of the retracted rope and consequently the lifting height, ensuring the lifting frame accurately closes the opening at the bottom of the cabinet. This type of lifting basket positioning adjustment device has a simple structure. The actuating block can be adjusted within a wide range of the traction rope, thereby meeting the installation needs of different environments and cabinets of different specifications. The positioning device can be installed inside the electrical box or at an appropriate position on the guide rail or cabinet, thereby greatly improving the ease of installation and meeting the installation needs of different types of cabinets and lifting baskets. It can also effectively improve the convenience of installation, maintenance and adjustment, and reduce the difficulty of operation, enabling general users to adjust it independently as needed.

[0007] Preferably, the actuating block has a through hole, and one end of the through hole has an adjusting section whose diameter gradually decreases from the inside to the outside; the locking device includes an adjusting block movably installed at one end of the adjusting section of the through hole, and a fixing block fixedly installed at the other end of the through hole, a spring is installed between the adjusting block and the fixing block, and the adjusting block and the fixing block also have wire holes for the traction rope to pass through; the adjusting block has an adjusting post extending along the through hole, and a ball is provided between the adjusting post and the through hole that can roll along the middle of the through hole and between the adjusting section, and a pressing hole is provided on the adjusting post opposite to the ball, the ball moves to the adjusting section of the through hole and presses the traction rope to the wire hole of the adjusting block along the pressing hole.

[0008] Preferably, the inner wall of the adjusting column's wire hole is provided with a recessed clamping groove at the location opposite to the clamping hole.

[0009] Preferably, the lifting frame includes a slide rod connecting the guide rail, a floating plate connected to the bottom of the two slide rods, and a column shell with a U-shaped cross-sectional area. The guide rail is fixed to the cabinet body by ear plates, and the column shell covers the guide rail and slide rod and is fixedly connected to the slide rod.

[0010] Preferably, a rope seat is installed on the lifting frame, and a rope end movable code is hinged on the rope seat. The hinged end of the rope end movable code is set horizontally, and the end of the traction rope is fixedly connected to the rope end movable code.

[0011] Preferably, the positioner is installed inside the electrical box.

[0012] Preferably, the positioner is a position switch, and the actuating spring of the position switch is located above the actuating block.

[0013] Preferably, the trigger block is spherical.

[0014] Preferably, the electrical box is equipped with two winders for winding and releasing traction ropes. The motor is connected to and drives the two winders simultaneously through a transmission assembly. Pulleys are installed at the left and right ends of the electrical box, and the two traction ropes are connected to the two sides of the lifting frame respectively. The two traction ropes pass over the pulleys at both ends of the electrical box and are connected to the two winders respectively.

[0015] Preferably, the trigger block is installed on one of the traction ropes.

[0016] With the aforementioned lifting basket positioning adjustment device, the lifting height of the basket can be adjusted more conveniently, and its lifting movement can be made more accurate and stable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the lifting basket positioning adjustment device.

[0018] Figure 2 This is a schematic diagram of the connection structure of the motor, traction rope, actuating block, locking device, and positioning device.

[0019] Figure 3 This is a schematic diagram of the actuating block and locking device.

[0020] Figure 4 This is a schematic diagram of the structure where the trigger block and locking device are fixed to the traction rope.

[0021] Figure 5 This is a schematic diagram of the structure for unlocking the trigger block and the traction rope.

[0022] Figure 6 This is a schematic diagram of the connection structure between the guide rail and the lifting frame. Detailed Implementation

[0023] The technical solutions in 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, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] If the embodiments of this invention involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] This invention proposes a lifting basket positioning adjustment device.

[0027] The lifting basket positioning adjustment device of this embodiment includes an electrical box 1 installed on the top of the cabinet and containing a motor 2, guide rails 3 installed on both sides of the cabinet, a lifting frame 5 with a lifting basket 4 connected to the guide rails and moving along the guide rails, and a traction rope 6 with the motor and the lifting frame connected at both ends respectively; a movable trigger block 7 is connected to the traction rope, and a locking device 8 is installed between the trigger block and the traction rope to fix the trigger block to the traction rope; and a fixed positioning device 9 is installed. When the trigger block moves to the position, it triggers the positioning device to control the motor to stop.

[0028] like Figure 1-6 As shown, the motor inside the electrical box drives the lifting frame to move along the guide rail via a traction rope. As the motor gradually releases the cable from the traction rope, the lifting frame slowly descends under gravity. When the motor retracts the cable, the traction rope pulls the lifting frame upward. During this process, the trigger block moves synchronously with the lifting frame as the traction rope retracts and releases until it reaches the set position and triggers the positioning device. The positioning device sends a corresponding signal to the control system, which then controls the motor to stop retracting and releasing the cable, and the lifting frame also stops moving. When it is necessary to adjust the lifting height of the lifting frame, for example, if the bottom of the lifting frame cannot accurately close the opening at the bottom of the cabinet, the user can unlock the trigger block using the locking device, allowing the trigger block to move along the traction rope until it reaches the appropriate position. The user can then re-lock the trigger block using the locking device, thereby changing the length of the cable retracted by the motor, which in turn changes the lifting height of the lifting frame, enabling it to accurately close the opening at the bottom of the cabinet.

[0029] The actuating block can be connected to the traction rope via a clamp or other existing locking device; the lifting basket positioning adjustment device described in this application, such as... Figure 3-5 As shown, a through hole is provided on the actuating block 7, and an adjustment section with a diameter that gradually decreases from the inside to the outside is provided at one end of the through hole; the locking device 8 includes an adjustment block 81 movably installed at one end of the adjustment section of the through hole, and a fixing block 82 fixedly installed at the other end of the through hole. A spring 83 is installed between the adjustment block and the fixing block. A wire hole for the traction rope 6 to pass through is also provided on the adjustment block; an adjustment post 84 extending along the through hole is provided on the adjustment post and the through hole. A ball bearing 85 that can roll along the middle of the through hole and between the adjustment section is provided between the adjustment post and the through hole. A pressing hole 86 is provided on the adjustment post opposite to the ball bearing. The ball bearing moves to the adjustment section of the through hole and presses the traction rope to the wire hole of the adjustment block along the pressing hole. The middle section of the traction rope is vertically positioned to pull the lifting frame and its basket up and down. The trigger block is installed on the vertical section of the traction rope, and the through hole on the trigger block is also vertically positioned. The diameter of the upper end of the through hole is smaller than that of the middle and the other end. From the middle to the upper end of the through hole is an adjustment section with a gradually decreasing diameter. The ball bearings positioned between the through hole and the adjustment column are able to roll between the middle of the through hole and the adjustment section due to their own weight, the adjustment column, the adjustment block, and the through hole. Figure 3 , 4 As shown, when the actuating block and locking device are in the free state, the spring pushes the adjusting block upwards, causing the ball bearing to move to the adjusting section of the through hole. Due to the small space at this position, the ball bearing is squeezed by the through hole and partially protrudes from the pressing hole, pressing the traction rope against the wire hole of the adjusting block, thereby achieving locking and positioning. When it is necessary to change the final position height of the lifting frame, the user clamps the adjusting block and the actuating block from above and below, causing the adjusting block to move into the through hole. The spring is compressed, and the ball bearing moves to the middle of the through hole, thereby unlocking its lock on the traction rope. Figure 5 As shown, the user can then pull the actuating block up or down until it reaches the desired position. Releasing the adjusting block and the actuating block will cause them to automatically lock again under the spring's force. This actuating block and locking mechanism allow users to adjust the lifting frame's height at any time without professional assistance or tools, and without being obstructed by limited cabinet space, greatly improving operational convenience. Furthermore, the inner wall of the adjusting column 84's wire hole, opposite the pressing hole 86, has a recessed pressing groove 87, allowing the ball bearings to press the traction rope against the pressing groove, thereby increasing the locking friction and improving locking stability.

[0030] like Figure 6As shown, the lifting frame 5 includes a slide rod 51 connecting to the guide rail 3, and a floating plate 52 connected to the bottom of the two slide rods. The slide rod can be a slider that moves directly along the guide rail, or the guide rail and slide rod can be common drawer slide assemblies, which will not be described in detail here. In addition, there is a U-shaped column housing 53. The guide rail is fixed to the cabinet body by the ear plate 31. The column housing covers the guide rail and slide rod and is fixedly connected to the slide rod, thereby protecting the relatively sliding guide rail and slide rod, and also improving the aesthetics of the product. Figure 1 , 2 As shown in Figures 6 and 7, a rope seat 61 is installed on the lifting frame 5, particularly on the column housing 53 of the lifting frame. A rope end movable bracket 62 is hinged to the rope seat, and the hinged end of the rope end movable bracket is horizontally positioned. The end of the traction rope 6 is fixedly connected to the rope end movable bracket. The hinged rope end movable bracket can rotate freely, avoiding the influence of errors between parts and improving the stability of lifting. The column housing 53 is also equipped with a protective shell 63 covering the rope seat 61 and the rope end movable bracket 62, thereby providing protection.

[0031] The aforementioned lifting basket positioning adjustment device, with the positioning device 9 installed inside the electrical box 1, is designed to prevent exposure and collision with other components. The positioning device 9 can be any existing sensor, or it can be... Figure 2 The position switch shown has its actuating spring positioned above the actuating block 7. When the actuating block rises with the traction rope and presses against the actuating spring, the position switch sends a signal to the control system, thereby stopping the motor and allowing the lifting frame to reach the desired position. The actuating block 7 is spherical, which allows for smoother contact between the actuating block and the actuating spring, and also improves the user's operating feel.

[0032] The aforementioned lifting basket positioning adjustment device can install two motors inside the electrical box 1, with pulleys 11 installed at both ends of the electrical box. The two motors are connected to both sides of the lifting frame via traction ropes 6, and the two traction ropes pass over the pulleys at both ends of the electrical box, ensuring the traction ropes connecting the lifting frame to the pulleys are vertically positioned. The arrangement of two motors and two traction ropes also improves the stability of the lifting frame's movement. The trigger block 7 is installed on one of the traction ropes 6, thus ensuring accurate positioning. Alternatively, to reduce the number of motors, it can be configured as follows... Figure 2 As shown, two winders 12 for winding and releasing the traction rope 6 are installed in the electrical box 1. A single motor 2 is connected to and drives the two winders simultaneously through a transmission assembly, thereby reducing the number of motors required. This not only reduces equipment costs but also reduces errors caused by multiple motors, allowing the two traction ropes to move more accurately and synchronously, thus improving the accuracy of the lifting frame's movement.

[0033] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A lifting basket positioning adjustment device, comprising an electrical box (1) installed on the top of a cabinet and containing a motor (2), guide rails (3) installed on both sides of the cabinet, a lifting frame (5) containing a lifting basket (4) connected to the guide rails and moving along the guide rails, and a traction rope (6) with its two ends connected to the motor and the lifting frame respectively, characterized in that: The movable touch block (7) is connected to the traction rope, a locking device (8) is arranged between the touch block and the traction rope to fix the touch block to the traction rope, and a fixed installation positioner (9) is arranged.

2. The lift-and-pull basket-in-place adjustment device of claim 1, wherein: The touch block (7) is provided with a through hole, one end of the through hole is provided with an adjusting section with a diameter gradually decreasing from inside to outside; the locking device (8) comprises an adjusting block (81) movably arranged at one end of the adjusting section of the through hole, and a fixed block (82) fixedly arranged at the other end of the through hole, a spring (83) is arranged between the adjusting block and the fixed block, and the adjusting block and the fixed block are further provided with wire holes through which the traction rope (6) passes; the adjusting block is provided with an adjusting column (84) extending along the through hole, a ball (85) is arranged between the adjusting column and the through hole and can roll between the middle part of the through hole and the adjusting section, and the adjusting column is provided with a pressing hole (86) opposite to the ball, the ball is moved to the adjusting section of the through hole and presses the traction rope along the pressing hole to be fixed to the wire hole of the adjusting block.

3. The lift-and-pull basket-in-place adjustment device of claim 2, wherein: The inner wall of the wire hole of the adjusting column (84) is provided with a recessed pressing groove (87) opposite to the pressing hole (86).

4. The lift basket in place adjustment device of claim 1, 2, or 3, wherein: The lifting frame (5) comprises slide rods (51) connected to the guide rails 3, a floating plate (52) connected to the bottom ends of the two slide rods, and a column shell (53) with a U-shaped cross section, the guide rails are fixed to the cabinet body through the ear plates (31), and the column shell is wrapped around the guide rails and the slide rods and is fixedly connected to the slide rods.

5. The lift-and-pull basket-in-place adjustment device of claim 4, wherein: The lifting frame (5) is provided with a rope seat (61), the rope seat is hingedly provided with a rope end movable code (62), and the hinged end of the rope end movable code is horizontally arranged, and the end of the traction rope (6) is fixedly connected to the rope end movable code.

6. The lift basket in place adjustment device of claim 1, 2, or 3, wherein: The positioner (9) is installed in the electric appliance box 1.

7. The lift basket in place adjustment device of claim 1, 2, or 3, wherein: The positioner (9) is a position switch, and the touch spring of the position switch is arranged above the touch block (7).

8. The lift-and-pull basket-in-place adjustment device of claim 7, wherein: The touch block (7) is spherical.

9. The lift basket in place adjustment device of claim 1, 2, or 3, wherein: Two wire reels (12) for winding and unwinding the traction rope (6) are arranged in the electric appliance box (1), the motor (2) is connected to and drives the two wire reels through a transmission assembly, the electric appliance box is provided with pulleys (11) at the left and right ends, two traction ropes are connected to the left and right sides of the lifting frame, and the two traction ropes are wound around the pulleys at the left and right ends of the electric appliance box and are connected to the two wire reels, respectively.

10. The lift-and-pull basket-in-place adjustment device of claim 9, wherein: The touch block (7) is arranged on one of the traction ropes (6).

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