Lifting pull basket with adjustable force arm

Abstract

The utility model discloses a lifting pull basket with an adjustable force arm, which comprises a fixed frame, a connecting rod group and a lifting frame with a basket body, and the connecting rod group comprises a plurality of moment connecting rods and hinge connecting rods which are arranged in parallel, or comprises a plurality of moment connecting rods which are arranged in parallel; the connecting rod set further comprises at least one elastic telescopic piece, one end of the elastic telescopic piece is hinged to the fixing frame, and the other end of the elastic telescopic piece is hinged to a mounting position arranged on the torque connecting rod. A movable moving part is arranged on the torque connecting rod, and at least one mounting position is arranged on the moving part. According to the lifting pull basket, the elastic telescopic pieces are used for generating balance torque for the lifting frame to move up and down, meanwhile, the hinge position of at least one elastic telescopic piece can be adjusted, and therefore the purpose of adjusting the balance torque in a large range is achieved by adjusting the length of a force arm, and the lifting pull basket can be matched with load torque more accurately and linearly in use. The adjusting mechanism is simple and reliable. When the lifting pull basket is used, labor is saved, operation is smooth, and the containing requirements of various objects are effectively met.

Description

Technical Field

[0001] This utility model relates to the field of pull-out basket lifting technology, specifically to a pull-out basket with adjustable lever arm. Background Technology

[0002] Traditional pull-out baskets generate load during lifting due to the items loaded inside. The lifting structure within the basket can generate a balancing torque, which is calculated as: balancing torque = pulling force × lever arm. In practical use, to balance different loads on the basket, the main method is to directly adjust the pulling force. For example, several combinations of elastic tensile materials can be selected to match the load inside the basket. However, this method cannot precisely match the load, resulting in an uneven and laborious lifting operation. Therefore, the lifting basket proposed in this invention uses a more refined and linear method of adjusting the lever arm length to change the balancing torque, offering a wider adjustable range and a simpler, more reliable adjustment mechanism. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a lifting basket with an adjustable lever arm. This structure changes the balance torque by adjusting the lever arm, allowing for more precise and linear matching with the load torque during use. The adjustment mechanism is simple and reliable, and the lifting operation is more labor-saving and smoother.

[0004] The technical solution adopted by this utility model is as follows: a lifting basket with adjustable lever arm, including a fixed frame, a linkage group and a lifting frame with a basket body, wherein the fixed frame and the lifting frame are movably connected by the linkage group; the linkage group includes a plurality of parallel torque linkages and hinge linkages, or includes a plurality of parallel torque linkages; the linkage group also includes at least one elastic telescopic member, one end of which is hinged to the fixed frame and the other end is hinged to a mounting position provided on the torque linkage; the torque linkage is provided with a movable moving member, wherein at least one mounting position is provided on the movable member.

[0005] In this technical solution, the lifting basket device is fixedly installed in areas such as cabinets via a fixed frame, and the basket on the lifting frame provides storage functionality. During use, the opening and closing of the basket are achieved by controlling the movement of the linkage assembly. The linkage assembly uses multiple torque links and hinged links combined with the fixed frame and lifting frame, or multiple torque links combined with the fixed frame and lifting frame to form a parallelogram operating mechanism. Simultaneously, the elastic telescopic component generates a balancing torque on the lifting of the lifting frame. Since at least one mounting position on the torque link is located on the moving component, at least one hinged position of the elastic telescopic component and the torque link is adjustable. This allows for adjustment of the lever arm length to achieve a wide range of balancing torque adjustments, making the adjustment of the balancing torque more linear and providing a large adjustment range. During use, it can more accurately and linearly match the load torque, is easy to adjust with a wide range, and makes lifting operations more effortless and smooth.

[0006] Preferably, the torque connecting rod is provided with an adjusting screw, which is threadedly adapted to the moving part. The torque connecting rod is also provided with an adjusting knob connected to the adjusting screw. Rotating the adjusting screw can cause the moving part to move along the axial direction of the adjusting screw.

[0007] Preferably, the fixing frame is provided with multiple fixing seats along the installation direction, and at least one fixing seat is provided with an adjustment part that can be extended and retracted along the installation direction of the fixing frame, and the fixing frame is provided with a limiting member that limits the adjustment part.

[0008] Preferably, the side of the lifting frame is provided with a mounting panel for mounting the basket, the mounting panel is provided with spaced mounting slots, and the end of the basket near the mounting panel is provided with a mounting component that can be inserted into the mounting slot.

[0009] Preferably, the mounting panel is located on both sides or one side of the lifting frame, so that the basket can be mounted between two lifting frames, or on both sides or one side of each lifting frame.

[0010] Preferably, the lifting frame is provided with handles for pulling the lifting frame up and down.

[0011] Preferably, a limiter is provided between adjacent torque links and hinged links arranged in parallel, or between adjacent torque links, and the limiter is installed on the torque link or hinged link.

[0012] Preferably, the basket body includes a fixed basket body or a retractable basket body. The retractable basket body includes a fixed part and a sliding part arranged in a horizontal direction, and the fixed part and the sliding part are slidably adapted to each other in the horizontal direction.

[0013] The beneficial effects of this utility model are further demonstrated in the specific embodiments. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 A perspective view of the downward unfolding state of the adjustable lever arm lifting basket provided for a specific embodiment of this utility model.

[0016] Figure 2 A perspective view of the upward-moving and folding state of the adjustable lever arm lifting basket provided for a specific embodiment of this utility model.

[0017] Figure 3A schematic diagram showing the connection between the elastic telescopic component and the torque link of the adjustable lifting basket provided in a specific embodiment of this utility model.

[0018] Figure 4 A schematic diagram of the lever arm adjustment of the elastic telescopic component of the adjustable lifting basket provided in a specific embodiment of this utility model.

[0019] Figure 5 A schematic diagram of the retractable linkage assembly of the adjustable-arm lifting basket provided in a specific embodiment of this utility model. Figure 1 .

[0020] Figure 6 A schematic diagram of the retractable linkage assembly of the adjustable-arm lifting basket provided in a specific embodiment of this utility model. Figure 2 .

[0021] Figure 7 This is a schematic diagram showing the unfolded linkage of an adjustable lifting basket provided in a specific embodiment of the present invention.

[0022] Figure 8 A schematic diagram of the fully deployed linkage assembly of the adjustable lever arm lifting basket provided for a specific embodiment of this utility model.

[0023] Figure 9 A perspective view of the basket body of the adjustable lever arm lifting basket provided for a specific embodiment of this utility model.

[0024] In the attached drawings, there are: a fixed frame 100, a lifting frame 200, a mounting panel 210, a mounting slot 211, a basket body 300, a fixing part 310, a sliding part 320, a hanging part 330, an elastic telescopic part 400, a torque connecting rod 500, a hinge connecting rod 600, a mounting position 700, a moving part 800, a fixed base 900, an adjusting part 910, a limiting part 920, a handle 1000, a limiter 1100, an adjusting screw 1200, and an adjusting knob 1300. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0027] Example 1

[0028] like Figure 1-8As shown, this embodiment provides a liftable basket with adjustable lever arm, including a fixed frame 100, a linkage assembly, and a lifting frame 200 with a basket body 300. The fixed frame 100 and the lifting frame 200 are movably connected by the linkage assembly. The linkage assembly includes a plurality of parallel torque linkages 500 and hinged linkages 600600, or includes a plurality of parallel torque linkages 500. The linkage assembly also includes at least one elastic telescopic member 400, one end of which is hinged to the fixed frame 100 and the other end is hinged to a mounting position 700 provided on the torque linkage 500. The torque linkage 500 is provided with a movable moving member 800, wherein at least one mounting position 700 is provided on the moving member 800.

[0029] With the above configuration, the lifting basket device in this embodiment is fixedly installed in areas such as cabinets via the fixing frame 100, and the basket body 300 on the lifting frame 200 realizes the storage function; during use, the lifting and lowering movement is controlled to unfold or fold; the linkage assembly adopts multiple torque linkages 500 and hinge linkages 600 combined with the fixing frame 100 and the lifting frame 200, or adopts multiple torque linkages 500 combined with the fixing frame 100 and the lifting frame 200 to form a parallelogram mechanism, while the elastic telescopic member 400 controls the lifting and lowering of the lifting frame 200. To generate a balancing torque, at least one mounting position 700 on the torque link 500 is arranged on the moving part 800, allowing at least one elastic telescopic member 400 to be adjusted at its hinge position with the torque link 500. This adjusts the lever arm length to achieve a wide range of balancing torque adjustments, making the torque adjustment more linear and offering a large adjustment range. The elastic telescopic member 400 can be an air spring telescopic member, a coil spring telescopic member, or a hydraulic telescopic member, etc. Those skilled in the art can select the appropriate specifications and models according to their needs in practice. In actual use, it can more accurately and linearly match the load torque, making adjustment convenient and wide-ranging, and making lifting operations more effortless and smooth. In addition, to improve the convenience of lifting operations, the lifting frame 200 is equipped with a handle 1000 for pulling the lifting frame 200 up and down. Users can pull out and retract the basket 300 by holding the handle 1000.

[0030] Taking the accompanying drawings of this embodiment as an example, the linkage assembly in this embodiment uses a combination of a torque linkage 500 and a hinged linkage 600 arranged in parallel. It also employs two elastic telescopic members 400, with one end of the elastic telescopic member 400 hinged to a mounting position 700 on the movable member 800. Thus, when the relative position of the movable member 800 and the torque linkage 500 is changed, the relative position of the end of the elastic telescopic member 400 and the torque linkage 500 is adjusted accordingly. This allows for a wide range of adjustment of the balancing torque by adjusting the lever arm length of the elastic telescopic member 400. During use, it more precisely and linearly matches the load torque according to the weight of the items stored in the basket 300, making lifting and lowering operations more effortless and smooth.

[0031] To facilitate convenient adjustment of the balancing torque, this embodiment includes an adjusting screw 1200 on the torque connecting rod 500. The adjusting screw 1200 is threadedly fitted to the moving part 800. The torque connecting rod 500 also includes an adjusting knob 1300 connected to the adjusting screw 1200. Rotating the adjusting screw 1200 allows the moving part 800 to move axially along the adjusting screw 1200. Thus, since the moving part 800 is both movably fitted with the torque connecting rod 500 and threadedly fitted with the adjusting screw 1200, rotating the adjusting screw 1200 allows the moving part 800 to move axially along the adjusting screw 1200. Connecting the adjusting screw 1200 to the adjusting knob 1300 further facilitates rotational adjustment operations.

[0032] In practical applications, corresponding installation positions are designed on the outer or inner side of the torque connecting rod 500, and the moving part 800 and the adjusting screw 900 that form a threaded fit are installed at these positions. Taking the attached figure of this embodiment as an example, an installation position for moving the moving part 800 is provided on the inner side of the torque connecting rod 500. Rotating the adjusting screw 900 causes the moving part 800 to move axially along the adjusting screw 900. The adjusting knob 1300 connected to the adjusting screw 900 can also be installed at different positions on the torque connecting rod 500 as needed, such as the end or middle of the torque connecting rod 500, depending on the actual design requirements. In this embodiment, the adjusting knob 1300 is preferably arranged at the end of the torque connecting rod 500 away from the fixed frame 100 to facilitate user adjustment operations. To improve the overall structural compactness, in this embodiment, the horizontal cross-section of the lifting frame 200 is arranged in a U-shape. The torque connecting rod and the hinge connecting rod 600 pass through the area between the two sides of the lifting frame 200. The ends of the torque connecting rod 500 and the hinge connecting rod 600 are provided with connecting shaft structures, which are installed in the hinge holes on the inner side of the lifting frame 200, so as to hinge the torque connecting rod 500 and the hinge connecting rod 600 to the lifting frame 200. Similarly, the other end of the torque connecting rod 500 and the hinge connecting rod 600 is also hinged to the fixed frame 100 through the connecting shaft structure.

[0033] like Figures 3 to 7As shown, in this embodiment, a limiter 1100 is also provided between adjacent torque links 500 and hinge links 600 arranged in parallel, or between adjacent torque links 500. The limiter 1100 is installed on the torque link 500 or the hinge link 600. The limiter 1100 can play a limiting role, thus limiting the distance between adjacent torque links, or between adjacent torque links 500 and the hinge link. In this embodiment, the limiter 1100 is arranged on the torque link 500 so that it can contact the top wall of the hinge link in a horizontal state; the limiter 1100 can have a buffering and damping effect, which is beneficial to the smooth operation of the basket.

[0034] Example 2

[0035] like Figure 1 As shown in the figure, the structure provided in this embodiment vertically fixes the fixing frame 100 inside the cabinet during actual installation. To improve the applicability and stability of the installation, the fixing frame 100 is provided with multiple fixing seats 900 along the installation direction. At least one fixing seat 900 is provided with an adjustment part 910 that can be extended and retracted along the installation direction of the fixing frame 100. The fixing frame 100 is provided with a limiting member 920 that limits the adjustment part 910. Here, the adjustable fixing seat can be used to adjust the installation position of the lifting basket in the cabinet, and can also make the lifting basket adaptable to cabinets of different heights. In practice, when this device needs to be installed in cabinet installation positions 700 of different heights, the extension length of the adjustment part 910 is controlled. After adjustment, it is fixed and limited by the limiting member 920, and then the fixing seat 900 is fixedly connected to the top or bottom wall of the cabinet.

[0036] In this embodiment, two fixing bases 900 are preferably provided and installed at the upper and lower ends of the fixing frame 100, respectively for installation with the top and bottom walls of the cabinet. The limiting member 920 is a limiting bolt. The adjusting part 910 is provided with a first limiting hole, and the fixing frame 100 is provided with multiple longitudinally arranged second limiting holes. The limiting bolt passes through any one of the second limiting holes and enters into the first limiting hole to fix the fixing base 900. By passing through different second limiting holes, the installation height of the fixing base 900 can be adjusted to meet the installation requirements of different cabinet heights.

[0037] Example 3

[0038] The basket 300 for storing items is mounted on the lifting frame 200. For ease of installation, the lifting frame 200 has a mounting panel 210 on its side for mounting the basket 300. The mounting panel 210 has spaced hanging slots 211. The basket 300 has a mounting bracket that can be inserted into the hanging slots 211 at one end near the mounting panel 210. The mounting panel 210 allows the basket 300 to be fixed to the lifting frame 200 as needed. During installation, the basket 300 is simply hung in the hanging slots 211 at different heights using the mounting bracket. The mounting bracket uses conventional fasteners such as snap-fit ​​devices, which will not be described in detail here. In practical applications, the mounting panel 210 is located on both sides or one side of the lifting frame 200, allowing the basket 300 to be mounted between two lifting frames 200, or on both sides or one side of each lifting frame 200. When the basket 300 needs to be installed between two adjacent lifting frames 200, hanging parts can be set at both ends of the basket 300 accordingly; it can be applied to embodiments with high load-bearing requirements, and the device can be adapted to different usage scenarios by different installation methods of the basket 300.

[0039] In practical applications, the basket 300 installed on the lifting frame 200 includes a fixed basket or a retractable basket, such as... Figure 9 As shown, the extendable basket includes a fixed part 310 and a sliding part 320 arranged horizontally, with the fixed part 310 and the sliding part 320 slidingly adapted to each other in the horizontal direction. Thus, when using the extendable basket, its length can be adjusted by horizontal sliding to meet the installation requirements of cabinets of different widths. It is understood that the sliding part 320 of the extendable basket needs to be positioned after extending or retracting relative to the fixed part 310. Positioning components can be positioning bolts. In specific implementation, a slotted hole is provided on the sliding part 320, and a positioning hole is provided on the fixed part 310. The positioning bolt passes through the slotted hole, enters the positioning hole, and abuts against the sliding part 320, thereby fixing the sliding part 320.

[0040] After this device is installed in the cabinet, its initial state during actual use is as follows: Figure 2 As shown, after folding, the entire device is located inside the cabinet, with the basket 300 at the top. The elasticity of the telescopic member 400 provides tension to the basket 300. When items are placed inside the basket 300, causing changes in load weight, the position of the moving member 800 is adjusted by rotating the adjusting knob 1300. This adjusts the distance from the mounting position 700 on one of the telescopic members 400 to the pivot of the torque link 500, ensuring that the load on the basket 300 from the two telescopic members 400 remains dynamically balanced, preventing the basket 300 from falling. Pulling the handle 1000 lowers the lifting frame 200, causing it to lower and unfold the basket 300. The unfolded state is as follows: Figure 1As shown, it facilitates the loading and unloading of items, and can more accurately and linearly match the load torque during use. It is easy to adjust and has a wide range of adjustment. The lifting and lowering operation is labor-saving and smooth.

[0041] In the description of this application, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0042] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "fixed," 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 an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A lever arm adjustable lifting basket, comprising a fixed frame (100), a linkage assembly, and a lifting frame (200) with a basket body, wherein the fixed frame (100) and the lifting frame (200) are movably connected by the linkage assembly; characterized in that... ； The linkage assembly includes multiple torque linkages (500) and hinged linkages (600) arranged in parallel, or includes multiple torque linkages (500) arranged in parallel. The linkage assembly further includes at least one elastic telescopic member (400), one end of which is hinged to the fixed frame (100) and the other end is hinged to the mounting position (700) provided on the torque link (500); the torque link (500) is provided with a movable moving member (800), wherein at least one mounting position (700) is provided on the moving member (800).

2. The adjustable lever arm lifting basket according to claim 1, characterized in that, The torque connecting rod (500) is provided with an adjusting screw (1200), which is threadedly adapted to the moving part (800). The torque connecting rod (500) is also provided with an adjusting knob (1300) connected to the adjusting screw (1200). Rotating the adjusting screw (1200) can cause the moving part (800) to move axially along the adjusting screw (1200).

3. The adjustable lever arm lifting basket according to claim 1, characterized in that, The mounting bracket (100) is provided with a plurality of mounting seats (900) along the installation direction. At least one mounting seat (900) is provided with an adjustment part (910) that can be extended and retracted along the installation direction of the mounting bracket (100). The mounting bracket (100) is provided with a limiting member (920) that limits the adjustment part (910).

4. The adjustable lever arm lifting basket according to claim 1, characterized in that, The lifting frame (200) has a mounting panel (210) for mounting the basket (300) on its side. The mounting panel (210) has spaced mounting slots (211). The basket (300) has a mounting component that can be inserted into the mounting slots (211) at one end near the mounting panel (210).

5. The adjustable lever arm lifting basket according to claim 4, characterized in that, The mounting panel (210) is provided on both sides or one side of the lifting frame (200), so that the basket (300) can be mounted between two lifting frames (200) or on both sides or one side of each lifting frame (200).

6. The adjustable lever arm lifting basket according to claim 1, characterized in that, The lifting frame (200) is equipped with a handle (1000) for pulling the lifting frame (200) up and down.

7. The adjustable lever arm lifting basket according to claim 1, characterized in that, A limiter (1100) is provided between adjacent torque links (500) and hinged links (600) arranged in parallel, or between adjacent torque links (500), and the limiter (1100) is installed on the torque link (500) or the hinged link (600).

8. The adjustable lever arm lifting basket according to claim 1, characterized in that, The basket (300) includes a fixed basket or a retractable basket. The retractable basket includes a fixed part (310) and a sliding part (320) arranged in a horizontal direction. The fixed part (310) and the sliding part (320) are slidably adapted to each other in the horizontal direction.

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