Spiral winding lifting mechanism and propelling device

Abstract

The utility model provides a spiral winding lifting mechanism and a propelling device, and relates to the technical field of lifting mechanisms. The spiral winding lifting mechanism comprises a lifting rod, a driving mechanism, a control mechanism and a wire harness, wherein the driving mechanism drives the lifting rod to move in the axial direction of the lifting rod, the control mechanism is arranged on the lifting rod, and the wire harness is connected with the driving mechanism and the control mechanism. At least one part of the wire harness forms a spiral line structure, and the spiral line structure surrounds the lifting rod.

Description

Technical Field

[0001] This specification relates to the technical field of lifting mechanisms, specifically to a spiral winding lifting mechanism and a propulsion device. Background Technology

[0002] A lifting mechanism is a mechanical device used to transport materials or change the position of equipment in a vertical or inclined direction. Lifting mechanisms can achieve their lifting function through mechanical transmission (e.g., gears, chains, wire ropes, etc.) or hydraulic systems. Lifting mechanisms can be used in marine propulsion systems, which may include a propeller, a power unit driving the propeller, and a lifting boom connected to the power unit. This lifting boom allows the propeller to descend and enter the water, adjust its depth underwater, or rise and leave the water. The lifting boom can also be configured to tilt about a horizontal axis or rotate about its axial direction.

[0003] The lifting mechanism may include a drive mechanism for driving the lifting rod to move along its axial direction and a control mechanism for controlling the drive mechanism. A wiring harness may be provided between the control mechanism and the drive mechanism. The wiring harness connects the control mechanism and the drive mechanism of the lifting mechanism, and is prone to problems such as entanglement, pulling, and wear due to changes in the relative position between the control mechanism and the drive mechanism (e.g., moving closer or further apart, rotation around the axis of the lifting rod, and / or flipping as the lifting rod flips). Utility Model Content

[0004] This specification provides one or more embodiments of a spiral winding lifting mechanism, including: a lifting rod, a drive mechanism for driving the lifting rod to move along its axial direction, a control mechanism disposed on the lifting rod, and a wire harness connecting the drive mechanism and the control mechanism; at least a portion of the wire harness forms a spiral structure, the spiral structure being wound around the lifting rod.

[0005] In some embodiments, the helical structure is a variable diameter helical structure.

[0006] In some embodiments, the variable diameter helical structure is frustum-shaped; the diameter of the variable diameter helical structure on the side near the control mechanism is smaller than the diameter of the variable diameter helical structure on the side near the drive mechanism.

[0007] In some embodiments, a first gap exists between the helical structure and the outer surface of the lifting rod.

[0008] In some embodiments, the drive mechanism has a supporting surface, and the lower part of the helical structure is supported on the supporting surface.

[0009] In some embodiments, the system further includes: a base assembly, the drive mechanism being rotatably connected to the base assembly, the drive mechanism being rotatable relative to the base assembly about a rotation axis intersecting the axial direction of the lifting rod; the base assembly including a base plate portion and a side plate portion disposed on at least one side of the base plate portion, the side plate portion including a side plate and a side plate cover, a side plate receiving space being formed between the side plate and the side plate cover, and the wiring harness extending into the interior of the side plate receiving space.

[0010] In some embodiments, a junction box is provided inside the side panel accommodating space, and the wire harness is divided into at least a first wire harness and a second wire harness through the junction box.

[0011] In some embodiments, the first wiring harness passes through the side panel and is connected to the drive mechanism; a second gap exists between the drive mechanism and the base plate portion, and a portion of the first wiring harness extends within the second gap; the second wiring harness passes through the side panel cover and extends to the outside of the side panel portion.

[0012] In some embodiments, the side plate is provided with a limiting structure for restricting the position of the first wire harness and / or the second wire harness.

[0013] This specification provides a propulsion device according to one or more embodiments, including a lifting mechanism for spiral winding as described in any of the above claims and a propeller, wherein the propeller is disposed at the bottom end of the lifting rod and electrically connected to the control mechanism. Attached Figure Description

[0014] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. The same numbers in the drawings denote the same structures or steps.

[0015] Figure 1 This is a schematic diagram of a lifting mechanism according to some embodiments of this specification.

[0016] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0017] Figure 3 This is a schematic diagram of the internal structure of the side plate accommodating space of the lifting mechanism according to some embodiments of this specification.

[0018] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0019] Figure 5 yes Figure 4 A magnified view of a portion of the limiting structure.

[0020] Figure 6 This is a schematic diagram of the lifting mechanism shown in some embodiments of this specification from another angle.

[0021] Figure 7 yes Figure 6 A magnified view of a portion of the image.

[0022] Figure 8 This is a schematic diagram of the bottom of the lifting mechanism shown in some embodiments of this specification.

[0023] Figure 9 yes Figure 8 A magnified view of a portion of the image.

[0024] The diagram shows: 1 Lifting rod; 2 Drive mechanism; 3 Control mechanism; 4 Wiring harness; 5 Base assembly; 6 Junction box; 7 Limiting structure; 21 Supporting surface; 40 Helical structure; 41 First wiring harness; 411 First part of first wiring harness; 412 Second part of first wiring harness; 42 Second wiring harness; 51 Base plate; 52 Side plate; 521 Side plate; 522 Side plate cover; 71 Fixing part; 72 Wire clamp part; 8 Pusher. Detailed Implementation

[0025] To more clearly illustrate the technical solutions of the embodiments in this specification, the embodiments will be described in detail below with reference to the accompanying drawings. Obviously, the content described below are some examples or embodiments of this specification. For those skilled in the art, without creative effort, the technical solutions or means disclosed in this specification can be applied to other scenarios based on this technical content.

[0026] It should be understood that the terms "system," "device," "equipment," "part" and / or "component," "unit" and / or "module" used in this specification are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other words can achieve the same purpose, they may be replaced by other expressions.

[0027] Unless otherwise specified, the technical terms used to describe components, elements, etc. in this specification are not singular but may include plural. Generally speaking, terms such as "comprising" or "including" only indicate that explicitly identified steps, elements, or components are included, and these steps, elements, and components do not constitute an exclusive list, as the described method or apparatus may also include other steps or components.

[0028] In the description of this specification, it should be understood that the directional descriptions, such as up, down, front, back, left, and right, indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. These descriptions are for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this specification, unless otherwise expressly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this specification in conjunction with the specific content of the technical solution.

[0029] A lifting mechanism is a mechanical device used to transport materials or change the position of equipment in a vertical or inclined direction. The lifting mechanism can achieve its lifting function through mechanical transmission (e.g., gears, chains, wire ropes, etc.) or a hydraulic system. In some embodiments, the lifting mechanism can be used for a propulsion device, such as a marine propulsion device. In some embodiments, a marine propulsion device may include a propeller, a power unit that drives the propeller, and a lifting rod connected to the power unit. The lifting rod allows the propeller to descend and enter the water, or adjust its depth below the water surface; the lifting rod also allows the propeller to rise and leave the water. In some embodiments, the lifting rod may also be configured to be able to rotate about a horizontal axis to change from a vertical to a horizontal state, thereby allowing the entire propulsion device to be horizontally or substantially horizontally housed inside the hull. In some embodiments, the lifting rod may also be configured to be able to rotate about its axial direction, thereby adjusting the orientation of the propeller.

[0030] In some embodiments, to achieve the raising and lowering of the lifting rod, the lifting mechanism may include a drive mechanism for driving the lifting rod to move along its axial direction (e.g., for driving the lifting rod to rise or fall) and a control mechanism for controlling the drive mechanism. In some embodiments, a wiring harness may be provided between the control mechanism and the drive mechanism. In some embodiments, the wiring harness may include a power supply harness (e.g., a three-phase AC power line or a DC power line) for providing power input to the drive mechanism, a signal transmission harness (e.g., shielded cable or twisted pair) for transmitting control commands (e.g., start, stop, lifting direction, etc.), a feedback harness (e.g., encoder signal line or sensor signal line) for feeding back the state of the drive mechanism (e.g., motor speed, lifting rod position, load pressure, etc.) to the control mechanism, and / or a safety protection harness (e.g., wiring harnesses connecting safety devices such as limit switches and emergency stop buttons) that directly cut off the power supply or trigger a braking mechanism via a separate line.

[0031] In some embodiments of marine propulsion equipment, the lifting boom is the main structure for raising and lowering the entire equipment. The control mechanism can be located at the top of the lifting boom for easy user operation. During the raising and lowering process, the drive mechanism will experience relative displacement with the lifting boom, resulting in corresponding relative displacement between the control mechanism and the drive mechanism. Besides raising and lowering, as mentioned earlier, the lifting boom can also rotate around its own axial direction and flip around a horizontal axis, making the relative position changes of the control mechanism and the drive mechanism more complex. In some related embodiments, the wiring harness directly connects the control mechanism and the drive mechanism of the lifting mechanism, and both ends can be fixed to the control mechanism and the drive mechanism respectively. This can easily lead to problems such as entanglement, pulling, and wear due to changes in the relative position between the control mechanism and the drive mechanism (e.g., moving closer or further apart, rotating around the axis of the lifting boom, and / or flipping with the flipping of the lifting boom).

[0032] Based on this, one or more embodiments of this specification provide a spiral winding lifting mechanism having a wire harness forming a spiral structure and wrapped around a lifting rod, capable of adaptively adjusting the pitch with the relative translation of the control mechanism and the drive mechanism, and / or adaptively bending or opening the spiral with the relative rotation of the control mechanism and the drive mechanism, so as to avoid problems such as entanglement, pulling, and wear.

[0033] Figure 1 These are schematic diagrams of lifting mechanisms shown in some embodiments of this specification. Figure 2 yes Figure 1 A magnified view of a portion of the image. See also... Figure 1 , Figure 2 As shown, in one or more embodiments of this specification, the spiral winding lifting mechanism may include: a lifting rod 1, a drive mechanism 2 for driving the lifting rod 1 to move along its axial direction, a control mechanism 3 disposed on the lifting rod 1, and a wire harness 4 connecting the drive mechanism 2 and the control mechanism 3. In some embodiments, at least a portion of the wire harness 4 forms a spiral structure 40, which is wound around the lifting rod 1.

[0034] In some embodiments, the lifting rod 1 may be a rod-shaped structure, and the cross-section of the lifting rod 1 may be circular. In some embodiments, the cross-section of the lifting rod 1 may also be elliptical, rectangular, polygonal, or other irregular shapes. In some embodiments, the lifting rod 1 may move along its axial direction to achieve the raising or lowering of the entire device. In some embodiments, the lifting rod 1 may also rotate about its axis, or revolve about a first axis parallel to its axis, or flip about a second axis perpendicular to its axis to change it from a vertical position to an inclined position or a horizontal position.

[0035] In some embodiments, the drive mechanism 2 may be arranged on the equipment carrier to enable the lifting rod 1 to rise or fall relative to the equipment carrier. In some embodiments, the equipment carrier may be a ship hull.

[0036] In some embodiments, the drive mechanism 2 may be a gear drive mechanism. For example, the drive mechanism 2 may include a rotatable gear, and the lifting rod 1 is equipped with a rack portion that meshes with the gear. The lifting rod 1 is raised or lowered through the cooperation of the gear and the rack portion. In some embodiments, the drive mechanism 2 may be a wire rope drive mechanism. For example, the drive mechanism 2 may include a rotatable drive wheel wound with a wire rope, the two ends of which are connected to the two ends of the lifting rod 1. The rotation of the drive wheel causes the wire rope to carry the lifting rod 1 up or down. In some embodiments, the drive mechanism 2 may also be a clamping wheel drive mechanism. For example, the drive mechanism 2 may include a rotatable clamping wheel that provides friction to the lifting rod 1. The clamping wheel is in contact with the surface of the lifting rod 1, and the rotation of the clamping wheel drives the lifting rod 1 up or down.

[0037] In some embodiments, the control mechanism 3 may be arranged at the end of the lifting rod 1, such as the upper end of the lifting rod 1, so that it can be operated by the user.

[0038] In some embodiments, the spiral structure 40 may be arranged on the lifting rod between the drive mechanism 2 and the control mechanism 3.

[0039] In one or more embodiments of this specification, when the distance between the drive mechanism 2 and the control mechanism 3 increases or decreases, the pitch of the helical structure 40 can be adaptively increased or decreased (i.e., the overall stretching or compression of the helical structure 40). In some embodiments, when the drive mechanism 2 rotates relative to the control mechanism 3 about the axis of the lifting rod 1 as the lifting rod 1 rotates, the helical structure 40 can adaptively unfold or wind according to the rotation direction of the drive mechanism 2 (i.e., the rotation direction of the lifting rod 1). In some embodiments, when the drive mechanism 2 changes from a vertical position to an inclined position or a horizontal position as the lifting rod 1 flips, the helical structure 40 can adaptively bend, for example, adaptively increasing the wire harness spacing on one side and decreasing the wire harness spacing on the other side. Based on the adaptive adjustment of the helical structure 40, it can maintain its state of wrapping around the lifting rod 1, maintain its approximate current position, and avoid unpredictable problems such as curling, knotting, and tangling, and can avoid interference or wear with other mechanisms.

[0040] In some embodiments, the helical structure 40 is a constant-diameter helical structure. In some embodiments, the helical structure 40 is wound in a cylindrical or cylindrical shape. In some embodiments, the outer surface of the helical structure 40 is located on the outer circumferential surface of a cylinder.

[0041] In some embodiments, the helical structure 40 is a variable-diameter helical structure. In some embodiments, the variable-diameter helical structure is frustum-shaped. In some embodiments, the outer surface of the helical structure 40 is located on the outer circumferential surface of a frustum. In some embodiments, the diameter of the variable-diameter helical structure on the side near the control mechanism 3 is smaller than the diameter on the side near the drive mechanism 2. In some embodiments, the diameter of the variable-diameter helical structure gradually increases from the control mechanism 3 to the drive mechanism 2. The upper wire bundle of the frustum-shaped variable-diameter helical structure has a smaller weight, while the lower wire bundle has a larger weight, and the lower wire bundle can provide some support for the upper wire bundle. In some embodiments, the frustum-shaped variable-diameter helical structure is better able to maintain its central position than a cylindrical or cylindrical helical structure, reducing its radial offset or bending caused by vibration, so that the center of the variable-diameter helical structure can be kept coincident with or approximately coincident with the center of the lifting rod 1, reducing the friction between the wire bundle 4 and the lifting rod 1.

[0042] In other embodiments, the diameter of the variable-diameter helical structure on the side closer to the control mechanism 3 is larger than the diameter on the side closer to the drive mechanism 2. In some embodiments, the diameter of the variable-diameter helical structure gradually decreases from the control mechanism 3 to the drive mechanism 2.

[0043] In other embodiments, the diameter of the variable diameter helical structure can also vary randomly.

[0044] In one or more embodiments of this specification, the spiral structure 40 has a first gap between it and the outer surface of the lifting rod 1 to allow space for it to be stretched, compressed, unfolded, coiled and bent.

[0045] In some embodiments, the helical structure 40 may be directly wrapped around the lifting rod 1. In other embodiments, the helical structure 40 may also be indirectly wrapped around the lifting rod 1. Exemplarily, a tubular structure may be arranged on the lifting rod 1, and the helical structure 40 may be wrapped around the tubular structure. In some embodiments, the tubular structure may be a flexible hose or a corrugated pipe. In some embodiments, the tubular structure may be cylindrical or frustum-shaped.

[0046] In some embodiments, see Figure 2 As shown, the drive mechanism 2 has a supporting surface 21, on which the lower part of the helical structure 40 is supported. In some embodiments, the supporting surface 21 may be the upper surface of the housing of the drive mechanism 2. In some embodiments, the supporting surface 21 may be a plane. In other embodiments, the supporting surface 21 may be an upwardly convex arc surface, a conical surface, or a portion of a conical surface, for supporting the helical structure 40 formed by the wire harness 4.

[0047] Figure 3This is a schematic diagram of the internal structure of the side plate accommodating space of the lifting mechanism according to some embodiments of this specification. Figure 4 yes Figure 3 A partially enlarged schematic diagram, Figure 5 yes Figure 4 A magnified view of a portion of the limiting structure. See also... Figures 3 to 5 As shown, in one or more embodiments of this specification, the lifting mechanism may further include: a base assembly 5, a drive mechanism 2 rotatably connected to the base assembly 5, and the drive mechanism 2 being capable of rotating (or flipping) relative to the base assembly 5 about a rotation axis. In some embodiments, the rotation axis intersects the axial direction of the lifting rod 1. In some embodiments, the rotation axis is perpendicular to the axial direction of the lifting rod 1.

[0048] In some embodiments, the base assembly 5 includes a base plate portion 51 and a side plate portion 52 disposed on at least one side of the base plate portion 51. In some embodiments, the base assembly 5 may include two side plate portions 52, which are respectively fixedly connected to both sides of the base plate portion 51. In some embodiments, the drive mechanism 2 may be arranged between the two side plate portions 52. In some embodiments, both sides of the housing of the drive mechanism 2 may be rotatably connected to the two side plate portions 52 respectively, so as to realize the overall rotation of the drive mechanism 2 around the aforementioned rotation axis, thereby carrying the lifting rod 1 to rotate.

[0049] In some embodiments, the side plate portion 52 includes a side plate 521 and a side plate cover 522, forming a side plate receiving space between the side plate 521 and the side plate cover 522, and the wiring harness 4 extends into the interior of the side plate receiving space. In some embodiments, the wiring harness 4 may include a power supply harness for providing power input to the drive mechanism and a signal transmission harness for transmitting control commands. In some embodiments, the wiring harness 4 may further include a feedback harness for feeding back the state of the drive mechanism to the control mechanism and / or a safety protection harness for directly cutting off power or triggering a braking mechanism via a separate line.

[0050] In some embodiments, a junction box 6 is provided inside the side panel accommodating space to divide the wire harness 4 into multiple wire harnesses for connection to corresponding mechanisms. In some embodiments, the wire harness 4 is divided into at least a first wire harness 41 and a second wire harness 42 by the junction box 6. In some embodiments, the first wire harness 41 may include a power wire harness and a signal transmission wire harness. In some embodiments, the second wire harness 42 may include a power wire harness.

[0051] In some embodiments, the first wiring harness 41 passes through the side plate 521 and is connected to the drive mechanism 2 to provide power to the drive mechanism 2, thereby enabling the control mechanism 3 to control the drive mechanism 2.

[0052] In some embodiments, see Figures 6 to 9As shown, a second gap exists between the drive mechanism 2 and the base plate portion 51, and a portion of the first wiring harness 41 extends within the second gap. In some embodiments, the first wiring harness 41 includes a first portion 411 of the first wiring harness fixed relative to the base plate portion 51 and a second portion 412 of the first wiring harness extending on the base plate portion 51 but not fixed relative to the base plate portion 51. In some embodiments, the second portion 412 of the first wiring harness can rotate with the drive mechanism 2.

[0053] In some embodiments, the second wiring harness 42 passes through the side panel cover 522 and extends to the outside of the side panel portion 52 for connection to a power source, such as a battery.

[0054] In some embodiments, see Figure 5 As shown, the side plate 521 is provided with a limiting structure 7 for limiting the position of the first wire harness 41 and / or the second wire harness 42. In some embodiments, the limiting structure 7 includes a fixing part 71 and wire clamping parts 72 provided on one or both sides of the fixing part 71. In some embodiments, both the fixing part 71 and the wire clamping parts 72 are plate-shaped. In some embodiments, the wire clamping parts 72 are perpendicular to the fixing part 71. In some embodiments, the limiting structure 7 is "n"-shaped. In some embodiments, the wire clamping parts 72 have wire grooves for clamping the first wire harness 41 or the second wire harness 42.

[0055] In one or more embodiments of this specification, a propulsion device is also provided, which includes a lifting mechanism of a spiral and a propeller 8 according to any embodiment of this specification. The propeller 8 is disposed at the bottom end of the lifting rod 1 and electrically connected to the control mechanism 3.

[0056] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: (1) the wire harness forms a spiral structure and wraps around the lifting rod. The wire harness can be adaptively stretched, compressed, unfolded, wound and / or bent according to the movement of the lifting rod, avoiding unpredictable curling, knotting and entanglement of the wire harness, avoiding interference between the wire harness and other mechanisms, avoiding entanglement between the wire harness and other mechanisms, pulling with other mechanisms or pulling on itself, and avoiding wear of the wire harness; (2) the truncated cone-shaped variable diameter spiral structure can better maintain the center position of the wire harness itself, reduce the offset of the wire harness relative to the lifting rod, and reduce the possibility of the wire harness contacting the lifting rod; (3) the truncated cone-shaped variable diameter spiral structure can allow the winding of longer wire harnesses, thereby allowing the spiral structure part of the wire harness to have a larger deformation range, which is compatible with the larger lifting stroke of the lifting rod. (4) The gap between the spiral structure and the outer surface of the lifting rod provides space for the spiral structure to stretch, compress, unfold, coil, and bend; (5) The supporting surface can support the spiral structure of the wire harness; (6) The side plate accommodating space allows for the accommodation of a portion of the wire harness and protects its internal structures such as junction boxes; (7) The wire harness is divided into multiple branch wire harnesses through the junction box for connection to other mechanisms or external mechanisms as needed. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced can be any one or a combination of the above, or any other possible beneficial effects.

[0057] The basic concepts have been described above. It is obvious that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are taught in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

Claims

1. A lifting mechanism for spiral winding, characterized in that, include: The lifting rod (1), the driving mechanism (2) that drives the lifting rod (1) to move along its axial direction, the control mechanism (3) provided on the lifting rod (1), and the wiring harness (4) connecting the driving mechanism (2) and the control mechanism (3). At least a portion of the wire harness (4) forms a spiral structure (40) that surrounds the lifting rod (1).

2. The lifting mechanism for spiral winding according to claim 1, characterized in that, The spiral structure (40) is a variable diameter spiral structure.

3. The lifting mechanism for spiral winding according to claim 2, characterized in that, The variable diameter helical structure is frustum-shaped; the diameter of the variable diameter helical structure on the side closer to the control mechanism (3) is smaller than the diameter of the variable diameter helical structure on the side closer to the drive mechanism (2).

4. The lifting mechanism for spiral winding according to claim 1, characterized in that, There is a first gap between the spiral structure (40) and the outer surface of the lifting rod (1).

5. The lifting mechanism for spiral winding according to claim 1, characterized in that, The drive mechanism (2) has a supporting surface (21), and the lower part of the spiral structure (40) is supported on the supporting surface (21).

6. The lifting mechanism for spiral winding according to claim 1, characterized in that, Also includes: The base assembly (5) is rotatably connected to the drive mechanism (2), which is capable of rotating relative to the base assembly (5) about a rotation axis that intersects the axial direction of the lifting rod (1). The base assembly (5) includes a base plate portion (51) and a side plate portion (52) disposed on at least one side of the base plate portion (51). The side plate portion (52) includes a side plate (521) and a side plate cover (522). A side plate receiving space is formed between the side plate (521) and the side plate cover (522). The wire harness (4) extends into the interior of the side plate receiving space.

7. The lifting mechanism for spiral winding according to claim 6, characterized in that, The side panel accommodating space is provided with a junction box (6), and the wire harness (4) is divided into at least a first wire harness (41) and a second wire harness (42) through the junction box (6).

8. The lifting mechanism for spiral winding according to claim 7, characterized in that, The first wire harness (41) passes through the side plate (521) and is connected to the drive mechanism (2); A second gap exists between the drive mechanism (2) and the base plate portion (51), and a portion of the first wire harness (41) extends within the second gap; The second wiring harness (42) passes through the side panel cover (522) and extends to the outside of the side panel portion (52).

9. The lifting mechanism for spiral winding according to claim 7, characterized in that, The side plate (521) is provided with a limiting structure (7) for limiting the position of the first wire harness (41) and / or the second wire harness (42).

10. A propulsion device, characterized in that, The lifting mechanism for spiral winding as described in any one of claims 1-9 and the pusher are provided at the bottom end of the lifting rod (1) and electrically connected to the control mechanism (3).

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