Lifting pull basket with adjustable force arm

Abstract

The lifting pull basket comprises a fixing frame, a connecting rod set and a lifting frame with a basket body, the connecting rod set comprises a plurality of moment connecting rods and hinge connecting rods which are arranged in parallel, or the connecting rod set 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 provided by the invention, the elastic telescopic pieces are utilized to generate balance torque for vertical movement of the lifting frame, and meanwhile, the hinging position of at least one elastic telescopic piece can be adjusted, so that 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 during 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] The invention relates to the technical field of a pull-out basket lifting technique, and in particular to a lifting pull-out basket with an adjustable force arm. Background Art

[0002] Traditional pull-out baskets will generate loads during the lifting process due to the items loaded in the basket. The lifting structure inside the lifting pull-out basket can generate a balancing torque on the basket body, balancing torque = pulling force × lever arm; in actual use, in order to balance the different loads on the basket body, it is mainly adjusted by directly changing the pulling force. For example, several groups of combinations composed of elastic stretching materials are selected to match the load in the basket; the disadvantage is that such a combination cannot accurately match the load, and the lifting and lowering operation of the pull-out basket is not smooth and laborious. In view of this, the lifting pull-out basket proposed in the present invention changes the balancing torque by adjusting the length of the lever arm in a more delicate and linear manner, with a wider adjustable range and a simple and reliable adjustment mechanism. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a lifting basket with an adjustable lever arm. This structure changes the balancing torque by adjusting the lever arm, and can match the load torque more accurately and linearly when used. The adjustment mechanism is simple and reliable, and the lifting operation is more labor-saving and smooth.

[0004] The technical solution adopted by the present invention is: a lifting basket with adjustable lever arm, comprising a fixed frame, a connecting rod group and a lifting frame with a basket body, wherein the fixed frame and the lifting frame are movably connected via the connecting rod group; the connecting rod group comprises a plurality of torque connecting rods and a hinged connecting rod arranged in parallel, or comprises a plurality of torque connecting rods arranged in parallel; the connecting rod group also comprises at least one elastic telescopic member, one end of the elastic telescopic member is hinged to the fixed frame, and the other end is hinged to a mounting position arranged on the torque connecting rod; a movable moving member is provided on the torque connecting rod, wherein at least one mounting position is arranged on the moving member.

[0005] In the technical scheme, the lifting basket device is fixedly installed in the cabinet and other areas through a fixed frame, and the basket body on the lifting frame is used to realize the storage function; when in use, it is unfolded or folded by controlling the movement of the connecting rod group; the connecting rod group adopts a plurality of torque links and hinged links in combination with the fixed frame and the lifting frame, or adopts a plurality of torque links in combination with the fixed frame and the lifting frame to form a parallelogram operating mechanism, and at the same time, the elastic telescopic part generates a balancing torque for the lifting of the lifting frame. Since at least one of the mounting positions provided on the torque link is arranged on the moving part, at least one hinge position of the elastic telescopic part and the torque link can be adjusted to adjust the length of the lever arm to achieve the purpose of adjusting the balancing torque in a large range, so that the adjustment of the balancing torque is more linear, and has the advantage of a large adjustment range; when in use, it can match the load torque more accurately and linearly, the adjustment is convenient and the range is large, and the lifting operation is more labor-saving and smooth.

[0006] Preferably, the torque connecting rod is provided with an adjusting screw, the adjusting screw is threadably matched with the moving part, and the torque connecting rod is also provided with an adjusting knob connected to the adjusting screw, and rotating the adjusting screw can cause the moving part to move axially along the adjusting screw.

[0007] Preferably, the fixing frame is provided with a plurality of fixing seats along the installation direction, at least one of the fixing seats is provided with an adjusting portion capable of telescopic adjustment along the fixing frame installation direction, and the fixing frame is provided with a limiting member for limiting the adjusting portion.

[0008] Preferably, a mounting panel for mounting the basket is provided on the side of the lifting frame, the mounting panel is provided with mounting slots arranged at intervals, and one end of the basket close to the mounting panel is provided with a mounting piece that can be inserted into the mounting slot.

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

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

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

[0012] Preferably, the basket body comprises a fixed basket body or a telescopic basket body, and the telescopic basket body comprises a fixed portion and a sliding portion arranged in a horizontal direction, and the fixed portion and the sliding portion are adapted to slide in the horizontal direction.

[0013] The beneficial effects of the present invention are further reflected in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. 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 according to the actual scale.

[0015] Figure 1 A three-dimensional diagram of a lifting basket with adjustable lever arms in a downwardly moved and unfolded state provided in a specific embodiment of the present invention.

[0016] Figure 2 A three-dimensional diagram of a lifting pull-out basket with adjustable lever arms in an upwardly moved and folded state provided in a specific embodiment of the present invention.

[0017] Figure 3 A schematic diagram of the connection between the elastic telescopic member and the torque connecting rod of a lifting basket with adjustable lever arm provided in a specific embodiment of the present invention.

[0018] Figure 4 A schematic diagram of the lever arm adjustment of the elastic telescopic member of the lifting pull-out basket with adjustable lever arm provided in a specific embodiment of the present invention.

[0019] Figure 5 Schematic diagram of folding the connecting rod assembly of the lifting basket with adjustable lever arm provided in a specific embodiment of the present invention Figure 1 .

[0020] Figure 6 Schematic diagram of folding the connecting rod assembly of the lifting basket with adjustable lever arm provided in a specific embodiment of the present invention Figure 2 .

[0021] Figure 7 A schematic diagram of the expansion of a connecting rod assembly of a lifting basket with adjustable lever arm provided in a specific embodiment of the present invention.

[0022] Figure 8 A schematic diagram of a fully deployed connecting rod assembly of a lifting basket with adjustable lever arm provided in a specific embodiment of the present invention.

[0023] Fig. 9 A three-dimensional view of a basket body of a lifting pull-out basket with adjustable lever arms provided in a specific embodiment of the present invention.

[0024] In the accompanying drawings, there are a fixing 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 link 500, a hinge link 600, a mounting position 700, a moving part 800, a fixing seat 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 DESCRIPTION

[0025] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0026] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0027] Embodiment 1

[0028] like Figure 1-8As shown, in this embodiment, a lifting basket with adjustable lever arm is provided, comprising a fixed frame 100, a connecting rod group and a lifting frame 200 with a basket body 300, wherein the fixed frame 100 and the lifting frame 200 are movably connected via the connecting rod group; the connecting rod group comprises a plurality of torque connecting rods 500 and hinged connecting rods 600600 arranged in parallel, or comprises a plurality of torque connecting rods 500 arranged in parallel; the connecting rod group further comprises at least one elastic telescopic member 400, one end of the elastic telescopic member 400 is hinged to the fixed frame 100, and the other end is hinged to a mounting position 700 arranged on the torque connecting rod 500; a movable moving member 800 is provided on the torque connecting rod 500, wherein at least one mounting position 700 is arranged on the moving member 800.

[0029] Through the above arrangement, the lifting basket device in this embodiment is fixedly installed in a cabinet or other area through the fixing frame 100, and the basket body 300 on the lifting frame 200 is used to realize the storage function; when in use, the basket is unfolded or folded by controlling the lifting movement of the lifting frame; the connecting rod group uses a plurality of torque connecting rods 500 and a hinged connecting rod 600 to be combined with the fixing frame 100 and the lifting frame 200, or a plurality of torque connecting rods 500 are combined with the fixing frame 100 and the lifting frame 200 to form a parallelogram mechanism, and at the same time, the elastic telescopic member 400 produces the lifting of the lifting frame 200. The balance torque is generated. Since at least one of the mounting positions 700 provided on the torque link 500 is arranged on the moving part 800, the hinge position of at least one elastic telescopic part 400 and the torque link 500 can be adjusted to adjust the length of the force arm to achieve the purpose of adjusting the balance torque in a wide range, so that the adjustment of the balance torque is more linear, and has the advantage of a large adjustment range. The elastic telescopic part 400 can be selected from air spring telescopic parts, spiral spring telescopic parts or hydraulic telescopic parts, etc., and those skilled in the art can select corresponding specifications and models according to their needs in practice. In actual use, it can match the load torque more accurately and linearly, the adjustment is convenient and has a wide range, and the lifting operation is more labor-saving and smooth; in addition, in order to improve the convenience of the lifting operation, the lifting frame 200 is provided with a handle 1000 for pulling the lifting frame 200 to lift and lower. When using it, the user implements the operation of pulling out and retracting the basket 300 by holding the handle 1000.

[0030] Taking the accompanying drawings of this embodiment as an example, in this embodiment, the connecting rod group adopts a moment connecting rod 500 and a hinged connecting rod 600 combined and arranged in parallel, and two elastic telescopic parts 400 are adopted at the same time, and one end of the elastic telescopic part 400 is hinged with the mounting position 700 arranged on the moving part 800, so that when the relative position of the moving part 800 and the moment connecting rod 500 is changed, the relative position of the end of the elastic telescopic part 400 and the moment connecting rod 500 is adjusted accordingly, so as to achieve the purpose of adjusting the balancing torque in a wide range by adjusting the length of the lever arm of the elastic telescopic part 400. When in use, according to the weight of the stored objects in the basket body 300, it is more accurately and linearly matched with the load torque, and the lifting operation is more labor-saving and smooth.

[0031] In order to achieve convenient adjustment of the balancing torque, the present embodiment is provided with an adjusting screw 1200 on the torque connecting rod 500, the adjusting screw 1200 is threadedly adapted to the moving member 800, and the torque connecting rod 500 is also provided with an adjusting knob 1300 connected to the adjusting screw 1200, and the moving member 800 can be moved axially along the adjusting screw 1200 by rotating the adjusting screw 1200. In this way, since the moving member 800 is movably matched with the torque connecting rod 500 on the one hand, and threadedly matched with the adjusting screw 1200 on the other hand, when the adjusting screw 1200 is rotated, the moving member 800 can be moved axially along the adjusting screw 1200, and the rotation adjustment operation can be more conveniently implemented by connecting the adjusting screw 1200 to the adjusting knob 1300.

[0032] In actual applications, a corresponding installation position is designed on the outer side or inner side of the torque link 500, and the movable part 800 and the adjusting screw 900 that form a threaded fit are installed at this position; taking the attached figure of this embodiment as an example, an installation position for moving the movable part 800 is set on the inner side of the torque link 500, and the adjusting screw 900 is rotated to make the movable part 800 move axially along the adjusting screw 900; and the adjusting knob 1300 connected to the adjusting screw 900 can also be installed at different positions of the torque link 500 as needed, such as the end or middle of the torque link 500, etc., which shall be based on actual design needs. In this embodiment, the adjusting knob 1300 is preferably arranged at the end of the torque link 500 away from the fixed frame 100 to facilitate the user to implement the adjustment operation. In order to improve the compactness of the overall structure, the horizontal cross-section of the lifting frame 200 in this embodiment is arranged in a U shape, and the torque link and the hinge link 600 penetrate into the area between the two sides of the lifting frame 200. The ends of the torque link 500 and the hinge link 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 realize the hinge connection of the torque link 500 and the hinge link 600 on the lifting frame 200; similarly, the other ends of the torque link 500 and the hinge link 600 are also hinged to the fixed frame 100 through the connecting shaft structure.

[0033] like Figures 3 to 7As shown, in this embodiment, a stopper 1100 is further provided between adjacent torque links 500 and hinge links 600 arranged in parallel, or between adjacent torque links 500, and the stopper 1100 is installed on the torque link 500 or the hinge link 600. The stopper 1100 can play a limiting role, thus limiting the distance between adjacent torque links, or adjacent torque links 500 and the hinge link. In this embodiment, the stopper 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 stopper 1100 can have a buffering and damping effect, which is conducive to the smooth operation of the pull-out basket during operation.

[0034] Embodiment 2

[0035] like Figure 1 As shown, the structure provided in this embodiment fixes the fixing frame 100 vertically in the cabinet during actual installation. In order to improve the application scope and installation stability of the installation, the fixing frame 100 is provided with a plurality of fixing seats 900 along the installation direction, and at least one fixing seat 900 is provided with an adjusting portion 910 that can be telescopically adjusted along the installation direction of the fixing frame 100, and the fixing frame 100 is provided with a limiting member 920 for limiting the position of the adjusting portion 910. Here, the adjustable fixing seat can be used to adjust the installation position of the lifting pull-out basket in the cabinet, and can also make the lifting pull-out basket suitable for installation on cabinets of different heights; in practice, when the device needs to be installed in cabinets of different heights, the extension length of the adjusting portion 910 is controlled, and after being adjusted to the right position, the limiting member 920 is used to fix the limiting position, and then the fixing seat 900 is fixedly connected with the installation surface such as the cabinet top wall or bottom wall.

[0036] In this embodiment, two fixing seats 900 are preferably provided, and are arranged at the installation positions at the upper and lower ends of the fixing frame 100, respectively for installation with the top wall and the bottom wall of the cabinet. The limiting member 920 adopts a limiting bolt. The adjustment part 910 is provided with a first limiting hole, and the fixing frame 100 is provided with a plurality of second limiting holes arranged longitudinally. The limiting bolt passes through any second limiting hole and enters into the first limiting hole to fix the fixing seat 900; by passing through different second limiting holes, the installation height of the fixing seat 900 can be adjusted, thereby meeting the installation requirements of different heights in the cabinet.

[0037] Embodiment 3

[0038] The basket 300 for storing articles in the device is installed on the lifting frame 200. For the convenience of installation, a mounting panel 210 for mounting the basket 300 is provided on the side of the lifting frame 200. The mounting panel 210 is provided with mounting slots 211 arranged at intervals. The end of the basket 300 close to the mounting panel 210 is provided with a mounting member that can be inserted into the mounting slots 211. The mounting panel 210 can be provided to fix the basket 300 on the lifting frame 200 as required. During the specific installation, the basket 300 can be hung in the mounting slots 211 at different heights through the mounting member. The mounting member adopts a conventional fixing member structure such as a buckle, which will not be described here. In actual application, 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. When the basket 300 needs to be installed between two adjacent lifting frames 200, mounting parts can be provided at both ends of the basket 300 accordingly; this can be applied to embodiments with higher load-bearing requirements, and different installation methods of the basket 300 can make the device applicable to different usage scenarios.

[0039] In practical applications, the basket 300 installed on the lifting frame 200 includes a fixed basket or a retractable basket, such as Fig. 9 As shown, the retractable basket includes a fixed portion 310 and a sliding portion 320 arranged in the horizontal direction, and the fixed portion 310 and the sliding portion 320 are adapted to slide in the horizontal direction. In this way, when the retractable basket is used, its use length can be adjusted by horizontal sliding to meet the installation requirements of cabinets of different widths. It can be understood that the sliding portion 320 of the retractable basket needs to be positioned after being extended relative to the fixed portion 310, and the positioning member can be a positioning bolt. In specific implementation, a strip hole is set on the sliding portion 320, and a positioning hole is set on the fixed portion 310. The positioning bolt passes through the strip hole into the positioning hole and abuts against the sliding portion 320 to achieve the fixing of the sliding portion 320.

[0040] When the device is installed in the cabinet and used, the initial state is as follows Figure 2 As shown, after folding, the entire device is located inside the cabinet, and the basket body 300 is located at the top. The elastic force provided by the elastic telescopic member 400 provides a pulling force to the basket body 300. When the load weight changes due to placing items in the basket body 300, the position of the moving member 800 is adjusted by rotating the adjustment knob 1300, and then the distance from the mounting position 700 on one of the elastic telescopic members 400 to the rotating axis of the torque connecting rod 500 is adjusted, so that the two elastic telescopic members 400 always maintain a dynamic balance of the load on the basket body 300, ensuring that the basket body 300 will not fall. Pulling the handle 1000 to pull the lifting frame 200 downward causes the lifting frame 200 to drive the basket body 300 to descend and unfold the device. The state after descending and unfolding is shown in FIG. Figure 1As shown, it is convenient to take and place items, and can match the load torque more accurately and linearly when in use. It is easy to adjust and has a large range. The operation is labor-saving and smooth during lifting.

[0041] In the description of this application, it should be understood that the terms in this application are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the specification of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, systems and techniques are not 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 the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A lifting basket with adjustable lever arm, comprising a fixed frame (100), a connecting rod group and a lifting frame (200) with a basket body, wherein the fixed frame (100) and the lifting frame (200) are movably connected via the connecting rod group; characterized in that ； The connecting rod assembly comprises a plurality of torque connecting rods (500) and a hinge connecting rod (600) arranged in parallel, or comprises a plurality of torque connecting rods (500) arranged in parallel; The connecting rod assembly further comprises at least one elastic telescopic member (400), one end of the elastic telescopic member (400) being hinged to the fixing frame (100), and the other end of the elastic telescopic member (400) being hinged to a mounting position (700) provided on the torque connecting rod (500); a movable moving member (800) is provided on the torque connecting rod (500), wherein at least one mounting position (700) is provided on the moving member (800).

2. The lifting basket with adjustable lever arm according to claim 1, characterized in that: The torque connecting rod (500) is provided with an adjusting screw (1200), the adjusting screw (1200) is threadably matched with the moving member (800), and the torque connecting rod (500) is also provided with an adjusting knob (1300) connected to the adjusting screw (1200), and the moving member (800) can be moved axially along the adjusting screw (1200) by rotating the adjusting screw (1200).

3. The lifting basket with adjustable lever arm according to claim 1, characterized in that: The fixing frame (100) is provided with a plurality of fixing seats (900) along the installation direction, at least one of the fixing seats (900) is provided with an adjustment portion (910) capable of telescopic adjustment along the installation direction of the fixing frame (100), and the fixing frame (100) is provided with a limiting member (920) for limiting the position of the adjusting portion (910).

4. The lifting basket with adjustable lever arm according to claim 1, characterized in that: A mounting panel (210) for mounting the basket body (300) is provided on the side of the lifting frame (200), the mounting panel (210) is provided with mounting slots (211) arranged at intervals, and a mounting piece that can be inserted into the mounting slots (211) is provided at one end of the basket body (300) close to the mounting panel (210).

5. The lifting basket with adjustable lever arm according to claim 4, characterized in that: The mounting panels (210) are arranged 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 mounted on both sides or one side of each lifting frame (200).

6. The lifting basket with adjustable lever arm according to claim 1, characterized in that: The lifting frame (200) is provided with a handle (1000) for pulling the lifting frame (200) to rise or fall.

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

8. The lifting basket with adjustable lever arm according to claim 1, characterized in that: The basket body (300) comprises a fixed basket body or a telescopic basket body, and the telescopic basket body comprises a fixed part (310) and a sliding part (320) arranged in a horizontal direction, and the fixed part (310) and the sliding part (320) are adapted to slide in the horizontal direction.

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