Length-adjustable household appliance lifting and transferring device

Abstract

The utility model discloses a length-adjustable household appliance lifting and transferring device which is characterized in that the upper surface of a front plate and / or a rear plate is provided with a transverse groove penetrating through the width direction of the front plate and / or the rear plate, and a connecting rib is connected between the front plate and the rear plate; the extension plate is detachably connected to the main supporting plate, and at least part of the extension plate extends away from the front plate from the free end of the rear plate; according to the length-adjustable household appliance lifting and transferring device, the whole body formed by the main supporting plate and the extension plate can adapt to household appliances of more sizes through the extension plate, and the adaptation degree is improved by replacing different extension plates or adjusting the position of the extension plate in the direction of the main supporting plate; when the wrenching piece is pulled outwards, the movable wheel part is pressed downwards out of the connecting rib, the household appliance is jacked up, and the rolling wheel can serve as a rolling foundation; when the pulling piece is retracted inwards, the action of the driving piece and the movable wheel part is released, the movable wheel part is retracted upwards, and the household appliance is put down; the transverse groove corresponds to a reinforcing rib at the bottom of the household appliance, and the rest part of the main supporting plate can be attached to the bottom of the household appliance.

Description

Technical Field

[0001] This utility model relates to the field of transfer tooling, and in particular to a household appliance lifting and transfer device with adjustable length. Background Technology

[0002] In warehouse environments or home settings, moving heavy appliances (such as washing machines or refrigerators) primarily involves two methods: using a forklift or manual lifting. Additionally, there is a method that utilizes a simple lifting device adapted for the appliance. Current lifting devices are typically non-fixed; they must be inserted into the bottom of the appliance, and then the appliance is lifted using a lever mechanism to complete the transfer.

[0003] The structure at the bottom of home appliances is often complex, making it difficult or even impossible to insert a lifting device. Therefore, a transfer device permanently attached to the bottom of the appliance has practical value. During transfer, the lifting device should be activated, and after transfer, it should be released. Thus, designing a rational transfer device that can be permanently fixed to the bottom of the appliance while providing superior performance has become an urgent need. Some appliance models have protruding reinforcing ribs along the width direction at the front and / or rear ends to enhance structural strength or facilitate cleaning. The presence of these ribs affects the placement and operation of the transfer device. Therefore, the presence of these ribs makes the fit of the lifting device more stringent in terms of position and size, reducing its adaptability. Utility Model Content

[0004] The main purpose of this utility model is to provide a lifting and transfer device for home appliances with adjustable length, which aims to solve the problem that the presence of reinforcing ribs at the bottom of home appliances makes the positioning and size of the lifting device more demanding and reduces its adaptability.

[0005] To achieve the above objectives, this utility model provides a length-adjustable appliance lifting and transfer device, comprising:

[0006] The main support plate is in the shape of a straight plate and includes a front plate and a rear plate. The upper surface of the front plate and / or the rear plate is provided with a transverse groove that runs through its width direction. A connecting rib connects the front plate and the rear plate.

[0007] An extension plate, detachably connected to the main support plate, at least a portion of the extension plate extending away from the front plate from the free end of the rear plate;

[0008] Multiple movable wheels are disposed below the connecting rib and spaced apart along the length direction;

[0009] A sliding member is slidably disposed below the connecting rib along the length direction, and multiple driving members are provided on the sliding member corresponding to the multiple movable wheel portions;

[0010] A lever is hinged to the front plate and connected to one end of the slider near the front plate;

[0011] During the reciprocating motion of the lever, the sliding member reciprocates while the driving member presses the movable wheel downward and releases it upward.

[0012] Furthermore, the fixed position of the extension plate in the length direction of the rear plate is adjustable.

[0013] Furthermore, the extension plate and the main support plate are fixed and adjustable in position along their length direction through a shaft groove fit structure.

[0014] Furthermore, the extension plate and the main support plate are provided with multiple shaft groove mating structures in the width direction.

[0015] Furthermore, the movable wheel includes a hinge shaft and a swing frame. A plurality of hinge shafts are spaced apart along the length of the connecting rib. The hinge shafts are fixed across the width of the connecting rib. The swing frame is hinged to the hinge shaft and has a roller connected to its free end. The driving member is a protrusion disposed at the bottom of the sliding member.

[0016] Furthermore, the movable wheel portion also includes an elastic element, which is connected to the swing frame and presses the swing frame upward.

[0017] Furthermore, one end of the lever in the length direction is hinged to the front plate plane to form a first hinge point, and the middle part of the lever in the length direction is connected to one end of the slider near the front plate, so that the lever can rotate based on the first hinge point.

[0018] Furthermore, the main support plate is a one-piece molded structure.

[0019] Furthermore, the front plate and the rear plate are respectively provided with a front through hole and a rear through hole.

[0020] Furthermore, the front through hole and / or the rear through hole are oblong holes.

[0021] This utility model provides an adjustable-length appliance lifting and transfer device. Through the addition of an extension plate, the main support plate and the extension plate together can accommodate appliances of various sizes. The adaptability can be improved by replacing different extension plates, or by adjusting the position of the extension plate in the direction of the main support plate. When the lever is pulled outward, the movable wheel is pressed down onto the connecting rib, lifting the appliance, with the roller serving as the basis for rolling. When the lever is retracted inward, the action of the driving component and the movable wheel is released, causing the movable wheel to retract upward, and the appliance is lowered. A transverse groove is introduced, corresponding to the reinforcing ribs at the bottom of the appliance, allowing the remaining part of the main support plate to fit snugly against the bottom of the appliance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the upper part (lifting state) of the adjustable-length home appliance lifting and transfer device according to the first embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the sliding component in the adjustable-length home appliance lifting and transfer device of the first embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the main support plate in the adjustable-length home appliance lifting and transfer device of the first embodiment of this utility model;

[0025] Figure 4 This is a lower schematic diagram (lifting state) of the adjustable-length home appliance lifting and transfer device according to the first embodiment of this utility model;

[0026] Figure 5 This is a lower schematic diagram (released state) of the adjustable-length home appliance lifting and transfer device according to the first embodiment of this utility model;

[0027] Figure 6 This is a lower schematic diagram (lifting state) of the second embodiment of the adjustable-length home appliance lifting and transfer device of this utility model;

[0028] Figure 7 This is a lower schematic diagram (lifting state) of the adjustable-length home appliance lifting and transfer device according to the third embodiment of this utility model;

[0029] Figure 8 This is a schematic diagram of the upper part (lifting state) of the adjustable-length home appliance lifting and transfer device according to the third embodiment of this utility model.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0033] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0034] Reference Figures 1 to 8 In one embodiment of this utility model, a length-adjustable appliance lifting and transfer device includes:

[0035] The main support plate 100 is in the shape of a straight plate and includes a front plate 110 and a rear plate 120. The upper surface of the front plate 110 and / or the rear plate 120 is provided with a transverse groove 111 that runs through its width direction. A connecting rib 130 connects the front plate 110 and the rear plate 120.

[0036] An extension plate 200 is detachably connected to the main support plate 100, and at least a portion of the extension plate 200 extends away from the front plate 110 from the free end of the rear plate 120.

[0037] Multiple movable wheel portions 300 are disposed below the connecting rib 130 and spaced apart in the length direction;

[0038] A sliding member 400 is slidably disposed below the connecting rib 130 along the length direction, and a plurality of driving members are provided on the sliding member 400 corresponding to the plurality of movable wheel portions 300;

[0039] A lever 500 is hinged to the front plate 110 and connected to one end of the slider 400 near the front plate 110;

[0040] During the reciprocating motion of the lever 500, the sliding member 400 reciprocates while the driving member presses the movable wheel 300 downward and releases it upward.

[0041] In the prior art, some models of home appliances have protruding reinforcing ribs along the width direction at the front and / or rear ends to enhance structural strength or facilitate cleaning. The presence of these reinforcing ribs affects the placement and operation of the transfer device. Due to the presence of the reinforcing ribs, the adaptation of the lifting device to position and size becomes more stringent, resulting in reduced adaptability.

[0042] In this utility model, the highly adaptable home appliance transfer device has a fixed up-down direction during use, thus providing directional indication via up-down movement. The main support plate 100, which is generally straight, includes a front plate 110 and a rear plate 120. The front plate 110 and rear plate 120 are respectively used to connect to the front and rear corners of the home appliance. A connecting rib 130 with a downward-facing open cross-section connects the front plate 110 and rear plate 120 at one end in the width direction. The connecting rib 130 provides structural connection while also providing a foundation for the subsequent installation of the sliding member 400. The cross-section of the connecting rib 130 is a fully or partially open frame structure, and a sliding groove is formed on its lower surface. Considering that some home appliances have protruding reinforcing ribs in the width direction of their front and / or rear ends for structural strength or cleaning purposes, the presence of these reinforcing ribs affects the placement of the main support plate 100. Therefore, a horizontal groove 111 is introduced. This groove 111 corresponds to the aforementioned reinforcing ribs, allowing the remaining part of the main support plate 100 to fit snugly against the bottom of the home appliance. To improve adaptability, the width of the horizontal groove 111 itself can be specifically increased, thereby increasing the number of home appliance models and types that the highly adaptable home appliance transfer device can accommodate. The horizontal groove 111 is preferably integrally formed on the front plate 110 or the rear plate 120.

[0043] Reference Figures 7 to 8The extension plate 200 is detachably connected to the main support plate 100, and at least a portion of the extension plate 200 extends away from the front plate 110 from the free end of the rear plate 120. The extension plate 200 allows the main support plate 100 and the extension plate 200 to accommodate a wider range of appliance sizes. Adaptability can be improved by replacing different extension plates 200, or by adjusting the position of the extension plate 200 along the main support plate 100. The fixed position of the extension plate 200 along the length of the rear plate 120 is adjustable, but it is not limited to being fixed to the rear plate 120; it can be fixed to the connecting rib 130, or simultaneously to both the connecting rib 130 and the rear plate 120. The fit between the extension plate 200 and the main support plate 100 can be a slot-fit structure. The slot-fit structure includes a fixed shaft and an oblong hole, thus allowing the fixed position of the extension plate 200 on the main support plate 100 to be adjustable. Multiple slot-fit structures can be used to improve stability. The location of the shaft groove mating structure can be on the rear plate 120 or the connecting rib 130. The overall structure of the extension plate 200 is not limited, as long as it allows for fixation. The specific form of the shaft groove mating structure can be varied. The groove structure can be set on the extension plate 200 or the main support plate 100, and the shaft structure can be correspondingly set on the main support plate 100 or the extension plate 200; or the shaft structure can be an external bolt, with groove structures provided on both the extension plate 200 and the main support plate 100, thus achieving the shaft groove mating structure. Increasing the number of mating structures between the extension plate 200 and the main support plate 100 can further improve the support stability of the extension plate 200 on the main support plate 100. For example, if the extension plate 200 forms one shaft groove mating structure with the rear plate 120, and two shaft groove mating structures form between the extension plate 200 and the connecting rib 130, then the possibility of the extension plate 200 overturning in the width direction is significantly reduced.

[0044] Multiple movable wheels 300 are spaced apart along the length of the main support plate 100. The structure of the movable wheels 300 can be varied, depending on whether they can retract and lower on the main support plate 100.

[0045] The slider 400 is slidably disposed in the connecting rib 130 along its length, and multiple driving members are provided on the slider 400 corresponding to the multiple movable wheel portions 300. The structure of the driving members can also be various, such as a protruding structure or a groove structure, depending on whether it can act on the movable wheel portions 300. This will be described in detail in subsequent embodiments.

[0046] The actuation process of the lever 500 can be performed in the horizontal direction or in the vertical plane. During the reciprocating motion of the lever 500, the sliding member 400 reciprocates, causing the driving member to press down and release the movable wheel 300, thus lifting it upwards. When the movable wheel 300 is pressed down, the appliance is lifted and can be dragged; when the movable wheel 300 is released, the appliance is lowered. The driving member presses down and releases the movable wheel 300, thus lifting it upwards. In a specific embodiment, one end of the lever 500 along its length is hinged to the front plate 110 plane to form a first hinge point, and the middle part of the lever 500 along its length is connected to the end of the sliding member 400 near the front plate 110; thus, the lever 500 can rotate based on the first hinge point. The connection between the middle portion of the lever 500 along its length and the slider 400 can be varied. For example, the middle portion of the lever 500 along its length can be hinged to one end of the slider 400 near the front plate 110 to form a second hinge point. At least one of the first and second hinge points is oscillating, thus not restricting the rotation of the lever 500. Alternatively, the middle portion of the lever 500 along its length can be connected to the slider 400 via a connecting rod. The purpose of the lever 500 is simply to enable lever operation of the slider 400 by operating the lever 500. The middle portion along the length of the lever 500 is not limited to the exact center along its length, but only requires that it be offset from one end along the length of the lever 500, so that the lever 500 can rotate.

[0047] In summary, the extension plate 200 allows the main support plate 100 and the extension plate 200 to accommodate a wider range of home appliances. Adaptability can be improved by replacing the extension plate 200 with different ones, or by adjusting the position of the extension plate 200 in the direction of the main support plate 100. When the lever 500 is pulled outward, the movable wheel 300 is pressed down onto the connecting rib 130, lifting the appliance, and the roller 320 serves as the basis for rolling. When the lever 500 is retracted, the interaction between the drive component and the movable wheel 300 is released, causing the movable wheel 300 to retract upward, and the appliance is lowered. A transverse groove 111 is introduced, corresponding to the reinforcing ribs at the bottom of the appliance, allowing the remaining parts of the main support plate 100 to fit snugly against the bottom of the appliance.

[0048] Reference Figures 1 to 5 In one embodiment, the fixed position of the extension plate 200 in the length direction of the rear plate 120 is adjustable.

[0049] In this embodiment, the adjustable position of the extension plate 200 significantly improves the flexibility of use. The fixed position of the extension plate 200 in the length direction of the rear plate 120 is adjustable, but it is not limited to fixing the extension plate 200 to the rear plate 120. It can be fixed to the connecting rib 130, or simultaneously to the connecting rib 130 and the rear plate 120.

[0050] Reference Figures 1 to 5 In one embodiment, the extension plate 200 and the main support plate 100 are fixed and adjustable in position along their length direction through a shaft groove mating structure.

[0051] In this embodiment, a structural form between the extension plate 200 and the main support plate 100 is proposed. The groove-fit structure includes a fixed shaft and an oblong hole, thereby making the fixed position of the extension plate 200 on the main support plate 100 adjustable. Multiple shaft-groove fit structures can be provided to improve stability. The position of the shaft-groove fit structure can be on the rear plate 120 or the connecting rib 130. The specific overall structure of the extension plate 200 is not limited, as long as it can achieve fixation. The specific form of the shaft-groove fit structure can be varied. The groove structure can be provided on the extension plate 200 or the main support plate 100, and the shaft structure is correspondingly provided on the main support plate 100 or the extension plate 200; or the shaft structure is an external bolt, and both the extension plate 200 and the main support plate 100 are provided with groove structures to achieve the shaft-groove fit structure.

[0052] Reference Figures 1 to 5 In one embodiment, the extension plate 200 and the main support plate 100 are provided with a plurality of shaft groove mating structures in the width direction.

[0053] In this embodiment, the number of mating structures between the extension plate 200 and the main support plate 100 is increased, thereby improving the support stability of the extension plate 200 on the main support plate 100. For example, if the extension plate 200 forms a shaft groove mating structure with the rear plate 120, and the extension plate 200 forms two shaft groove mating structures with the connecting rib 130, then the possibility of the extension plate 200 overturning in the width direction is greatly reduced.

[0054] Reference Figures 1 to 5 In one embodiment, the movable wheel portion 300 includes a hinge shaft and a swing frame 310. A plurality of hinge shafts are spaced apart along the length of the connecting rib 130. The hinge shafts are fixed across the width of the connecting rib 130. The swing frame 310 is hinged to the hinge shaft and has a roller 320 connected to its free end. The driving member is a protrusion 410 disposed at the bottom of the sliding member 400.

[0055] In this embodiment, a structural form of movable wheel section 300 is proposed, in which multiple hinge shafts of multiple movable wheel sections 300 are spaced apart along the length direction of connecting rib 130. The hinge shafts are disposed in sliding grooves. The hinge shafts are fixed across the width direction of connecting rib 130, thus forming a stable support. Swing frame 310 is hinged to the hinge shaft, and a roller 320 is provided at the free end of swing frame 310. Thus, the movable wheel section 300 can swing with the hinge shaft as the base. When the movable wheel section 300 swings out of the connecting rib 130, the appliance is lifted, and the roller 320 can serve as the base for rolling; when the movable wheel section 300 retracts into the connecting rib 130, the appliance is lowered.

[0056] Reference Figure 6 In one embodiment, the movable wheel portion 300 further includes an elastic element connected to the swing frame 310 to press the swing frame 310 upward.

[0057] In this embodiment, the elastic element can take various forms, such as a torsion spring. In a typical structure, the swing frame 310 includes a frame and a mounting shaft. The mounting shaft is fixed to the connecting rib 130, the frame is hinged to the mounting shaft, and the torsion spring is provided on the mounting shaft as an elastic element to press the swing frame 310 toward the connecting rib 130, so that the movable wheel 300 will not sag naturally in the free state.

[0058] Reference Figures 1 to 5 In one embodiment, one end of the lever 500 in the length direction is hinged to the plane of the front plate 110 to form a first hinge point, and the middle part of the lever 500 in the length direction is connected to one end of the slider 400 near the front plate 110, so that the lever 500 can rotate based on the first hinge point.

[0059] In this embodiment, the lever 500 rotates horizontally, resulting in a smaller overall thickness and operating dimension of the appliance lifting and transfer device, thus achieving greater flexibility in space utilization. One end of the lever 500 along its length is hinged to the plane of the front plate 110 to form a first hinge point, and the middle part of the lever 500 along its length is connected to the end of the slider 400 near the front plate 110; thus, the lever 500 can rotate based on the first hinge point. The connection between the middle part of the lever 500 along its length and the slider 400 can be varied. For example, the middle part of the lever 500 along its length can be hinged to the end of the slider 400 near the front plate 110 to form a second hinge point, and at least one of the first and second hinge points is oscillating, so as not to restrict the rotation process of the lever 500; or the middle part of the lever 500 along its length can be connected to the slider 400 via a connecting rod. The purpose of the lever 500 is to allow for lever operation of the sliding member 400. The center of the lever 500 along its length is not necessarily the exact center, but only requires it to be offset from one end along its length, allowing the lever 500 to rotate. When the lever 500 is pulled outward, the drive unit presses the movable wheel 300 downward, lifting the appliance and facilitating its transfer via the movable wheel 300. When the lever 500 is retracted, the interaction between the drive unit and the movable wheel 300 is released, causing the movable wheel 300 to retract upward, lowering the appliance and preventing it from easily moving.

[0060] In one embodiment, the main support plate 100 is an integrally formed structure.

[0061] In this embodiment, the highly adaptable home appliance transfer device has an integrated structure, which simplifies the processing and assembly process. For example, the processing can be achieved through sheet metal.

[0062] Reference Figures 1 to 3 In one embodiment, the front plate 110 and the rear plate 120 are respectively provided with a front through hole and a rear through hole.

[0063] In this embodiment, the front plate 110 and the rear plate 120 are respectively provided with a front through hole and a rear through hole at their opposite ends in the width direction; the front and rear feet of the appliance pass through the front and rear through holes respectively to fix the main support plate 100 to the bottom of the appliance, eliminating the need for position adjustment during the use of the appliance lifting and transfer device. The sliding member 400 can avoid the front and rear through holes in various ways, such as the above-mentioned misalignment or the corresponding part of the sliding member 400 being hollowed out.

[0064] Reference Figures 1 to 3 In one embodiment, the front through hole and / or the rear through hole is an oblong hole.

[0065] In this embodiment, the front through hole and the rear through hole are respectively for the feet at the front and rear of the appliance to pass through. Therefore, by setting the front through hole and / or the rear through hole as an oblong shape, the range of sizes that the highly adaptable appliance transfer device can accommodate is increased.

[0066] In summary, the adjustable-length appliance lifting and transfer device provided by this utility model, through the setting of the extension plate 200, allows the main support plate 100 and the extension plate 200 to form a whole that can accommodate more sizes of appliances. The adaptability can be improved by replacing different extension plates 200, or by adjusting the position of the extension plate 200 in the direction of the main support plate 100. When the lever 500 is pulled outward, the movable wheel 300 is pressed down out of the connecting rib 130, the appliance is lifted, and the roller 320 can serve as the basis for rolling. When the lever 500 is retracted, the action of the driving member and the movable wheel 300 is released, and the movable wheel 300 retracts upward, and the appliance is lowered. A transverse groove 111 is introduced, which corresponds to the reinforcing rib at the bottom of the appliance, so that the rest of the main support plate 100 can fit snugly with the bottom of the appliance.

[0067] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A length-adjustable appliance lifting and transfer device, characterized in that, include: The main support plate (100) is generally straight and includes a front plate (110) and a rear plate (120). The upper surface of the front plate (110) and / or the rear plate (120) is provided with a transverse groove (111) that runs through its width direction. A connecting rib (130) connects the front plate (110) and the rear plate (120). An extension plate (200) is detachably connected to the main support plate (100), and at least a portion of the extension plate (200) extends away from the front plate (110) from the free end of the rear plate (120). Multiple movable wheel portions (300) are disposed below the connecting rib (130) and spaced apart in the length direction; A sliding member (400) is slidably disposed below the connecting rib (130) along the length direction, and a plurality of driving members are provided on the sliding member (400) corresponding to the plurality of movable wheel portions (300); A lever (500) is hinged to the front plate (110) and connected to one end of the slider (400) near the front plate (110); During the reciprocating motion of the lever (500), the sliding member (400) reciprocates while the driving member presses the movable wheel (300) downward and releases it upward.

2. The adjustable-length appliance lifting and transfer device according to claim 1, characterized in that, The fixed position of the extension plate (200) in the length direction of the rear plate (120) is adjustable.

3. The adjustable-length appliance lifting and transfer device according to claim 1, characterized in that, The extension plate (200) and the main support plate (100) are fixed and adjustable in position along their length by means of a shaft groove fit structure.

4. The adjustable-length appliance lifting and transfer device according to claim 3, characterized in that, The extension plate (200) and the main support plate (100) are provided with multiple shaft groove mating structures in the width direction.

5. The adjustable-length appliance lifting and transfer device according to claim 1, characterized in that, The movable wheel part (300) includes a hinge shaft and a swing frame (310). A plurality of the hinge shafts are spaced apart in the length direction of the connecting rib (130). The hinge shafts are fixed across the width direction of the connecting rib (130). The swing frame (310) is hinged to the hinge shaft and has a roller (320) connected to its free end. The driving member is a protrusion (410) provided at the bottom of the sliding member (400).

6. The adjustable-length appliance lifting and transfer device according to claim 5, characterized in that, The movable wheel (300) also includes an elastic element connected to the swing frame (310) to press the swing frame (310) upward.

7. The adjustable-length appliance lifting and transfer device according to any one of claims 1 to 6, characterized in that, One end of the lever (500) along its length is hinged to the plane of the front plate (110) to form a first hinge point, and the middle part of the lever (500) along its length is connected to one end of the slider (400) near the front plate (110), so that the lever (500) can rotate based on the first hinge point.

8. The adjustable-length appliance lifting and transfer device according to any one of claims 1 to 6, characterized in that, The main support plate (100) is a one-piece molded structure.

9. The adjustable-length appliance lifting and transfer device according to any one of claims 1 to 6, characterized in that, The front plate (110) and the rear plate (120) are respectively provided with a front through hole and a rear through hole.

10. The adjustable-length appliance lifting and transfer device according to claim 9, characterized in that, The front through hole and / or the rear through hole are oblong holes.

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