Single-motor-driven separately-controlled double-airing-rod lifting mechanism

Abstract

The utility model discloses a kind of single-motor driven sub-control type double-airing rod lifting mechanism, including controller, first winding drum, second winding drum, switcher and the first airing rod and second airing rod respectively connected with two winding drums, motor and driving gear are equipped in controller, first driven gear and second driven gear are respectively arranged in two winding drums, switcher has the switching shaft that can be axially moved and switching position along arc track, switching gear is set on switching shaft, for selectively with driving gear and corresponding driven gear is engaged simultaneously, to build transmission path from motor to any winding drum, the outer end of switching shaft is arranged in arc-shaped sliding slot on box body, arc-shaped sliding slot has positioning hole and groove section, the position locking of switching shaft thick diameter section and positioning hole cooperation is formed, when thin diameter section is located in groove section, switching action is allowed, the utility model uses single-motor drive and cooperates switching mechanism, the independent lifting of two airing rods is realized, compact structure, low in cost, positioning is reliable.

Description

Technical Field

[0001] This utility model relates to the field of clothes drying, and in particular to a single-motor driven, separately controlled double drying rod lifting mechanism. Background Technology

[0002] Existing clothes drying methods mainly include fixed clotheslines, hand-cranked adjustable clotheslines, electrically operated adjustable clotheslines, and multi-functional electric clothes drying machines. Among them, electrically operated adjustable clotheslines are gradually becoming more popular due to their ease of operation, labor-saving, and high efficiency. For example, Chinese patent CN115367645B discloses an "electric lifting device that can replace the hand crank of a hand-cranked clothesline." This device uses a motor to drive the raising and lowering of the clothesline and has functions such as anti-reverse rotation, limit protection, and emergency stop, effectively improving the safety and stability of use. This clothesline typically includes two parallel clotheslines that are raised and lowered synchronously by an electric lifting device.

[0003] However, in practical applications, if independent raising and lowering of two drying racks is required, traditional solutions typically necessitate configuring an independent motor drive system for each rack. While this approach enables separate control, it also introduces the following problems: First, the multi-motor configuration significantly increases the size and structural complexity of the equipment, placing higher demands on installation space, especially limiting its applicability in space-constrained home environments; second, multi-motor systems not only increase costs but also complicate design and installation in terms of wiring and control coordination; furthermore, the simultaneous operation of multiple motors can lead to noise accumulation and increased energy consumption, negatively impacting the user experience. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing electric lifting mechanism for double drying rods which uses independent drive of two motors, and to provide a single-motor driven, separately controlled double drying rod lifting mechanism with reasonable structure, flexible control and better cost.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is: a single-motor driven, separately controlled double drying rod lifting mechanism, comprising:

[0006] The controller includes a motor, a drive gear driven by the motor, a first winding drum and a second winding drum arranged in parallel, and a switch; the first winding drum is provided with a first driven gear, and the second winding drum is provided with a second driven gear.

[0007] A first drying rod and a second drying rod, wherein the first drying rod is connected to the first winding drum via a first wire rope assembly, and the second drying rod is connected to the second winding drum via a second wire rope assembly;

[0008] The switcher has an axially movable and circumferentially positioned switching shaft, on which a switching gear is mounted; the switcher has a first working position and a second working position.

[0009] When the switcher is in the first working position, the switching gear meshes with both the driving gear and the first driven gear, forming a transmission path from the motor to the first winding drum.

[0010] When the switcher is in the second working position, the switching gear meshes with both the driving gear and the second driven gear, forming a transmission path from the motor to the second winding drum.

[0011] A further preferred embodiment of this utility model is that the switching shaft can be operably pulled outward to disengage the switching gear from the meshing plane with the first driven gear and the second driven gear, at which point the switcher can perform position switching.

[0012] A further preferred embodiment of this invention is as follows: when the switching gear meshes with the driving gear, the axial movement of the switcher is locked; when the switching shaft is pulled out and the switching gear separates from the driving gear, the axial movement of the switcher is unlocked and switching can be performed.

[0013] A further preferred embodiment of this utility model is as follows: an arc-shaped sliding groove is provided on the housing of the controller, and the outer end of the switching shaft passes through the arc-shaped sliding groove and can slide therein, so that the switcher moves along an arc-shaped trajectory between the first working position and the second working position.

[0014] A further preferred embodiment of this utility model is as follows: the arc-shaped groove includes a first positioning hole, an arc-shaped groove segment, and a second positioning hole, the first positioning hole and the second positioning hole respectively corresponding to the switching shaft being in a first working position and a second working position; the switching shaft has a fine diameter segment and a coarse diameter segment in the axial direction; when the switching shaft is pulled out, its fine diameter segment is located in the arc-shaped groove segment, at which time the switcher can switch positions; when the switching gear meshes with the driving gear, the coarse diameter segment of the switching shaft is engaged in the first positioning hole or the second positioning hole, so that the switcher is locked.

[0015] A further preferred embodiment of this utility model is as follows: a bearing is provided on the switching shaft, and an arc-shaped bearing track corresponding to the arc-shaped slide groove is provided inside the housing of the controller. The bearing is housed in the arc-shaped bearing track and can roll along it.

[0016] A further preferred embodiment of this utility model is: a limiting structure is provided on the axial movement stroke of the switching shaft, the limiting structure including an upper limit structure for preventing the switching gear from disengaging excessively, and a lower limit structure for preventing the switching gear from resetting excessively.

[0017] A further preferred embodiment of this utility model is as follows: the upper limit structure is the fit between the upper end face of the switching gear and the inner wall of the controller housing; the lower limit structure is the fit between the stepped surface provided on the switching shaft and the bearing.

[0018] A further preferred embodiment of this utility model is as follows: it further includes a pulley assembly installed on the ceiling; the first wire rope assembly includes two wire ropes, which are respectively connected to the two ends of the first drying rod and wound around the first winding drum after being guided by the corresponding first pulley assembly; the second wire rope assembly includes two wire ropes, which are respectively connected to the two ends of the second drying rod and wound around the second winding drum after being guided by the corresponding second pulley assembly.

[0019] A further preferred embodiment of this utility model is as follows: the first pulley group includes a first directional pulley and a second directional pulley disposed above the end of the first drying rod, and a first converging pulley disposed in the corner area; the wire rope of the first wire rope group extends horizontally from the end of the first drying rod, passes through the first directional pulley or the second directional pulley, converges at the first converging pulley, and then connects downward to the first winding drum;

[0020] The second pulley group includes a third directional pulley and a fourth directional pulley disposed above the end of the second drying rod, and a second converging pulley disposed in the corner area; the wire rope of the second wire rope group extends horizontally from the end of the second drying rod through the third directional pulley or the fourth directional pulley, converges at the second converging pulley, and then connects downward to the second winding drum.

[0021] Compared with existing technologies, the advantages of this invention are: through innovative switcher technology, only one motor is needed to drive two independent winding drums, thereby controlling the independent raising and lowering of the two drying racks. This fundamentally overcomes the shortcomings of traditional dual-motor solutions, such as complex structure, large space occupation, high manufacturing cost, and the superposition of energy consumption and noise, resulting in a more compact product structure and better economic efficiency. The switcher, through the axial movement of the switching shaft and the cooperation of the arc-shaped slide groove, can accurately transmit motor power to the target winding drum. Its unique "pull-out switching, reset locking" mechanism ensures the stability of the transmission gear meshing in the working position, effectively preventing accidental disengagement during operation, while making the mode switching operation intuitive, simple, and safe.

[0022] In summary, this utility model achieves complex functions with a simple structure through ingenious mechanical structure integration. While reducing costs and space occupation, it ensures ease of operation, stable operation, and system reliability, resulting in significant overall technical benefits. Attached Figure Description

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0024] Figure 1 This is a partial schematic diagram of a separately controlled dual-bar lifting mechanism;

[0025] Figure 2 A schematic diagram of the overall structure of the lifting mechanism controller;

[0026] Figure 3 This is a schematic diagram showing the switch in its first operating position.

[0027] Figure 4 This is a schematic diagram showing the switch in its second operating position.

[0028] Figure 5 A structural disassembly diagram of the switch on the controller;

[0029] Figure 6 This is a schematic diagram of the motor and winding drum on the controller.

[0030] Figure 7 This is a side view diagram of the switch when it is unlocked.

[0031] Figure 8 A side view of the switch when it is locked.

[0032] Figure 9 This is a structural disassembly diagram of the switcher of this utility model. Detailed Implementation

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0034] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.

[0035] like Figure 1 As shown, a single-motor driven, separately controlled double drying rod lifting mechanism 100 includes a controller 101, a first drying rod 51, a second drying rod 52, corresponding pulley assemblies, and two independent wire rope transmission systems. The controller 101's housing 102 is installed on a wall that is easily controlled by the user, and its interior integrates a motor 10, a drive gear 20 fixedly connected to the motor's output shaft, and a first winding drum 31 and a second winding drum 32 arranged in parallel, among other core transmission mechanisms.

[0036] like Figures 2 to 9 As shown, inside the controller 101, a first driven gear c1 is provided on the first winding drum 31, and a second driven gear c2 is provided on the second winding drum 32. Neither of them directly meshes with the drive gear 20; instead, a transmission path is selectively established through a switcher 40. The switcher 40 includes a switching shaft 41 that is axially movable and circumferentially positioned. A switching gear 42 is fixed in the middle section of the switching shaft 41, and when the switcher is activated, it can selectively engage with the meshing plane of either the first driven gear c1 or the second driven gear c2 depending on its position.

[0037] The switcher 40 has a first working position and a second working position. In the first working position, the switching gear 42 meshes with both the drive gear 20 and the first driven gear c1, realizing the power transmission from the motor 10 to the first winding drum 31, so that the first drying rod 51 can perform the lifting and lowering function; in the second working position, the switching gear 42 meshes with both the drive gear 20 and the second driven gear c2, thereby driving the second winding drum 32, so that the second drying rod 52 can perform the lifting and lowering function.

[0038] To enable the switcher 40 to switch between the two positions, the controller housing 102 is provided with an arc-shaped slide groove h. The outer end of the switching shaft 41 passes through the arc-shaped slide groove h and can move along the arc-shaped trajectory. The arc-shaped slide groove h includes a first positioning hole h1, an arc-shaped groove segment h2, and a second positioning hole h3. The first positioning hole h1 corresponds to the first working position, and the second positioning hole h3 corresponds to the second working position.

[0039] To achieve reliable locking, the switching shaft 41 is provided with a narrow diameter section d1 and a wide diameter section d2 in the axial direction. When the switching shaft 41 is pulled outward, the narrow diameter section d1 is located in the arc-shaped groove section h2, the switching gear 42 disengages from the meshing plane of the drive gear 20, the arc-shaped movement is unlocked, and it can switch between two working positions; when the switching shaft 41 is released, the switching shaft returns to its original position under the action of elastic force, so that the wide diameter section d2 is embedded in the first positioning hole h1 or the second positioning hole h3, thereby locking the current working position and making the switching gear 42 re-mesh with the drive gear 20.

[0040] To ensure smoother switching, a bearing 46 is fitted onto the switching shaft 41. An arc-shaped bearing track h4, corresponding to the arc-shaped groove section h2, is provided inside the controller housing 102. The bearing 46 can roll along the arc-shaped track, thereby reducing frictional resistance during switching and improving operational smoothness. A retaining ring 47 is provided on the underside of the bearing 46 to reliably fix its position.

[0041] Furthermore, the axial movement of the switching shaft 41 has upper and lower limit structures. For example... Figure 7 As shown, the upper limit stop is formed by the upper end face r1 of the switching gear 42 engaging with the inner wall r2 of the housing 102 to prevent the switching gear 42 from disengaging excessively outward; as Figure 8 As shown, the lower limit is formed by the fit between the stepped surface r3 on the switching shaft 41 and the bearing 46, so as to limit the reset stroke in the switching shaft and ensure that the switching gear 42 maintains a reasonable meshing depth and angle in the meshing state.

[0042] Regarding the lifting structure, this embodiment includes a pulley assembly installed on the ceiling. The first wire rope assembly includes two wire ropes, respectively connected to both ends of the first drying rod 51. After changing direction by the corresponding first and second directional pulleys, they extend horizontally to the first converging pulley in the corner area, and finally wind downwards onto the first winding drum 31. The structure of the second wire rope assembly is the same, including a third directional pulley, a fourth directional pulley, and a second converging pulley. The wire ropes at both ends are wound onto the second winding drum 32 after being guided.

[0043] In actual use, the user only needs to pull out the switching shaft 41, allowing its narrow section d1 to enter the arc-shaped groove section h2, to smoothly move the switching shaft along the arc-shaped groove to another positioning hole. After the switcher 40 is positioned, the switching shaft 41 is released, and it returns to the meshing plane under the action of the elastic element, allowing the switching gear 42 to re-engage with the drive gear 20. Afterward, by controlling the forward and reverse rotation of the motor 10, the corresponding lifting and lowering operation of the drying rack can be achieved.

[0044] This embodiment achieves independent raising and lowering of two drying rods through a single motor and double winding drum structure. Compared to the traditional dual-motor solution, this embodiment has a more compact structure, lower cost, and avoids the problem of asynchronous operation between the two motors. The switching mechanism ensures that the two drying rods do not interfere with each other, improving the convenience of user operation. In addition, the structural design of the arc-shaped slide groove combined with the bearing track makes the switching action light and smooth, with reliable positioning, greatly enhancing the user experience.

[0045] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, 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 utility model. Similarly, "first" and "second" are only for the purpose of facilitating understanding and have no other directional meaning, and should not be considered as limitations on this utility model.

[0046] This invention introduces a single-motor driven, separately controlled double drying rack lifting mechanism. Specific examples are used to illustrate the principle and implementation of this invention. The descriptions of the embodiments are merely for the purpose of helping to understand this invention and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A single-motor driven, separately controlled double drying rack lifting mechanism, characterized in that, include: The controller includes a motor, a drive gear driven by the motor, a first winding drum and a second winding drum arranged in parallel, and a switch; the first winding drum is provided with a first driven gear, and the second winding drum is provided with a second driven gear. A first drying rod and a second drying rod, wherein the first drying rod is connected to the first winding drum via a first wire rope assembly, and the second drying rod is connected to the second winding drum via a second wire rope assembly; The switcher has a switching shaft that is axially movable and circumferentially positioned, and a switching gear is provided on the switching shaft; the switcher has a first working position and a second working position. When the switcher is in the first working position, the switching gear meshes with both the driving gear and the first driven gear, forming a transmission path from the motor to the first winding drum. When the switcher is in the second working position, the switching gear meshes with both the driving gear and the second driven gear, forming a transmission path from the motor to the second winding drum.

2. The single-motor driven, separately controlled double drying rack lifting mechanism according to claim 1, characterized in that: The switching shaft can be operably pulled outward to disengage the switching gear from the meshing plane with the first driven gear and the second driven gear, at which point the switcher can perform position switching.

3. The single-motor driven, separately controlled double drying rack lifting mechanism according to claim 2, characterized in that: When the switching gear meshes with the drive gear, the axial movement of the switcher is locked; when the switching shaft is pulled out and the switching gear is separated from the drive gear, the axial movement of the switcher is unlocked and switching can be performed.

4. The single-motor driven, separately controlled double drying rack lifting mechanism according to claim 1, characterized in that: The controller housing has an arc-shaped sliding groove, and the outer end of the switching shaft passes through the arc-shaped sliding groove and can slide therein, so that the switcher moves along an arc-shaped trajectory between the first working position and the second working position.

5. A single-motor driven, separately controlled double drying rack lifting mechanism according to claim 4, characterized in that: The arc-shaped groove includes a first positioning hole, an arc-shaped groove segment, and a second positioning hole. The first positioning hole and the second positioning hole correspond to the switching shaft being in a first working position and a second working position, respectively. The switching shaft has a narrow diameter segment and a wide diameter segment in the axial direction. When the switching shaft is pulled out, its narrow diameter segment is located in the arc-shaped groove segment, at which time the switcher can switch positions. When the switching gear meshes with the drive gear, the wide diameter segment of the switching shaft engages in the first positioning hole or the second positioning hole, thereby locking the switcher.

6. The single-motor driven, separately controlled double drying rack lifting mechanism according to claim 4, characterized in that: The switching shaft is equipped with a bearing, and the controller housing is equipped with an arc-shaped bearing track corresponding to the arc-shaped slide groove. The bearing is housed in the arc-shaped bearing track and can roll along it.

7. A single-motor driven, separately controlled double drying rack lifting mechanism according to claim 6, characterized in that: The axial travel of the switching shaft is provided with a limit structure, which includes an upper limit structure to prevent the switching gear from disengaging excessively, and a lower limit structure to prevent the switching gear from resetting excessively.

8. A single-motor driven, separately controlled double drying rack lifting mechanism according to claim 7, characterized in that: The upper limit structure is the fit between the upper end face of the switching gear and the inner wall of the controller housing; the lower limit structure is the fit between the stepped surface on the switching shaft and the bearing.

9. A single-motor driven, separately controlled double drying rack lifting mechanism according to claim 1, characterized in that: It also includes a pulley assembly mounted on the ceiling; the first wire rope assembly includes two wire ropes, which are respectively connected to both ends of the first drying rod and wound around the first winding drum after being guided by the corresponding first pulley assembly; the second wire rope assembly includes two wire ropes, which are respectively connected to both ends of the second drying rod and wound around the second winding drum after being guided by the corresponding second pulley assembly.

10. A single-motor driven, separately controlled double drying rack lifting mechanism according to claim 9, characterized in that: The first pulley group includes a first directional pulley and a second directional pulley disposed above the end of the first drying rod, and a first converging pulley disposed in the corner area; the steel wire rope of the first steel wire rope group extends horizontally from the end of the first drying rod, passes through the first directional pulley or the second directional pulley, converges at the first converging pulley, and then connects downward to the first winding drum; The second pulley group includes a third directional pulley and a fourth directional pulley disposed above the end of the second drying rod, and a second converging pulley disposed in the corner area; the wire rope of the second wire rope group extends horizontally from the end of the second drying rod through the third directional pulley or the fourth directional pulley, converges at the second converging pulley, and then connects downward to the second winding drum.

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