Traction drive mechanism and traction device
By designing an automatically controlled traction drive mechanism, the problem of frequent operation required by traditional traction equipment has been solved, realizing automatic rope winding, unwinding, and tensioning, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BULL CLOUD (JIANGSU) TECHNOLOGY CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional traction equipment requires frequent user intervention to release or retrieve the rope, which is laborious and results in a poor user experience.
Design a traction drive mechanism, including a base, first and second drive structures, and a cable guide structure. The drive structure automatically controls the winding and unwinding of the rope, and the friction and guide structure are used to achieve automatic guidance and tensioning of the rope, reducing manual operation.
It enables automatic rope retraction and extension, reducing the effort required by the user, improving the user experience, and expanding the applicability of the equipment.
Smart Images
Figure CN224572029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of traction tools, specifically to a traction drive mechanism and traction equipment. Background Technology
[0002] Leash equipment typically includes a leash, which is used to lead pets on outdoor walks. Traditional leashes are usually made of simple, flexible ropes, allowing dogs to move freely within a certain range while the owner can maintain control. During leash operation, the distance between the pet and owner changes as the pet moves, requiring the owner to constantly monitor the leash to prevent it from becoming too long and tangled, or too short and stunting the pet. This requires frequent intervention from the user, involving running or moving, making it physically demanding and resulting in a poor user experience. Utility Model Content
[0003] In order to solve the above-mentioned technical problems, the main purpose of this utility model is to provide a traction drive mechanism and traction device, which aims to solve the problem that traditional traction devices require users to frequently participate in the operation of releasing or retracting the rope, which is relatively laborious and results in a poor user experience.
[0004] To achieve the above objectives, this utility model proposes a traction drive mechanism, comprising:
[0005] The base has a first mounting hole and a second mounting hole on one side. The first mounting hole is adapted to allow a first winding module to be rotated, and the second mounting hole is adapted to allow a second winding module to be rotated. The base has a wire outlet on the side along the radial direction close to the second mounting hole.
[0006] The first drive structure, corresponding to the first mounting hole, is adapted to drive the first winding module to rotate in the forward or reverse direction, so that the first winding module can release or retract the first rope.
[0007] The second drive structure, corresponding to the second mounting hole, is adapted to drive the second winding module to rotate in the forward or reverse direction, so that the second winding module can release or retract the second rope.
[0008] The cable guide structure includes a first guide wheel rotatably mounted on the base. The first guide wheel is adapted to form a clamping area with the second winding module. The clamping area is adapted to allow the first rope and the second rope to pass through and to be guided towards the outlet under the guidance of the first guide wheel. The clamping area is adapted to clamp the two sides of the winding end of the first rope respectively and to form friction with the first rope. Under the action of the first guide wheel, the second rope is adapted to adhere to the outside of the first rope after passing through the clamping area.
[0009] Optionally, the first guide wheel is located on one radial side of the second mounting hole and is disposed near the outlet, and the guide surface of the first guide wheel is adapted to correspond to the winding area of the first winding module and the winding area of the second winding module.
[0010] Optionally, the wire guide structure further includes a second guide wheel and a third guide wheel rotatably mounted on the base. The second guide wheel and the third guide wheel are located on the wire path between the first mounting hole and the first guide wheel, and the first guide wheel, the second guide wheel and the third guide wheel are all located on the same side of the first mounting hole, and the three are arranged in a non-linear manner.
[0011] Optionally, the first mounting hole and the second mounting hole are located on the same plane and on the same side of the outlet.
[0012] The first guide wheel is positioned corresponding to the outlet, and the second and third guide wheels are located on the other side of the outlet.
[0013] Optionally, in the direction along which the first rope is wound, the second guide wheel is located between the first guide wheel and the third guide wheel, and among the first guide wheel, the second guide wheel and the third guide wheel, the third guide wheel has the longest distance between itself and the first mounting hole, as well as the distance between itself and the cable outlet.
[0014] Optionally, the first drive structure includes a first driver and a first drive disk connected to the first driver. The first drive disk is provided with a positioning part, which is adapted to cooperate with a mating part on the first winding module. The first driver is used to drive the first drive disk to rotate and, under the cooperation of the positioning part and the mating part, drive the first winding module to rotate together.
[0015] Optionally, the positioning part includes a plurality of first connecting holes and a plurality of first positioning holes disposed on the first drive disk, wherein the plurality of first connecting holes and the plurality of first positioning holes are arranged at intervals along the same circumference.
[0016] Optionally, the second drive structure includes a second driver and a reduction gear connected to the second driver. The reduction gear has an output section adapted to engage with the second winding module to prevent rotation. The second driver drives the reduction gear to rotate, thereby causing the second winding module to rotate as well.
[0017] Optionally, the deceleration device is configured as a planetary reducer, the planetary reducer includes a planet carrier, and the output part includes a transmission groove provided on the side of the planet carrier facing away from the second driver. The transmission groove is adapted to cooperate with the transmission boss on the second winding module, so that the planet carrier rotates and drives the second winding module to rotate together.
[0018] This utility model also provides a traction device, including the above-mentioned traction drive mechanism.
[0019] The technical solution provided by this utility model has the following beneficial effects:
[0020] The traction drive mechanism provided by this utility model includes a base, a first drive structure, a second drive structure, and a line guide structure. The base has a first mounting hole and a second mounting hole. The first mounting hole allows a first winding module to be rotatably mounted therein, and the second mounting hole allows a second winding module to be rotatably mounted therein. By providing the first and second drive structures, the first drive structure drives the first winding module to rotate forward or backward, thereby enabling the first rope to be unloaded or retracted. The second drive structure drives the second winding module to rotate forward or backward, thereby enabling the second rope to be unloaded or retracted. The automatic unloading and retraction of the rope through the first and second drive structures eliminates the need for manual winding by the user, making operation significantly less strenuous. Furthermore, by incorporating a line guide structure, the first rope is guided towards the outlet. A clamping area is formed between the first guide wheel and the second winding module of the line guide structure. Guided by the first guide wheel, the second rope, after passing through this clamping area, adheres to the second rope and extends from the outlet together, connecting to the pet. Friction is generated between the first rope, the first guide wheel, and the second winding module. The rotation of the second winding module, driven by this friction, moves the first rope. This allows the first rope to wind in and out via the second winding module without needing to activate the first drive structure, saving power. When both the first and second drive structures are activated simultaneously, the winding and unwinding forces are greater, better handling different traction conditions and broadening the applicability of the traction device, resulting in a better user experience. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 A schematic diagram of an embodiment of a traction drive mechanism provided by this utility model;
[0023] Figure 2 for Figure 1 A cross-sectional structural diagram of the traction drive mechanism described herein;
[0024] Figure 3 A schematic diagram of the structure of an embodiment of a traction device provided by this utility model;
[0025] Figure 4 for Figure 3 A structural schematic diagram of the traction device described in the text from another perspective.
[0026] Explanation of icon numbers:
[0027] 1000-Traction device; 100-Traction drive mechanism; 1-Base; 11-First mounting hole; 12-Second mounting hole; 13-Outlet; 2-First drive structure; 21-First driver; 22-First drive disc; 23-Positioning part; 231-First connecting hole; 232-First positioning hole; 3-Second drive structure; 32-Reduction device; 321-Output part; 3211-Transmission groove; 4-Wire group guide structure; 41-First guide wheel; 42-Second guide wheel; 43-Third guide wheel; 200-First winding module; 210-First rope; 300-Second winding module; 310-Second rope.
[0028] The realization of the purpose, functional characteristics and excellent effects of this utility model will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0032] This utility model provides a traction drive mechanism 100, which is suitable for use with a traction device 1000. A rope is extended from the traction device 1000 for pet walking. For details, please refer to... Figures 1 to 2 In this embodiment, the traction drive mechanism 100 includes a base 1, a first drive structure 2, a second drive structure 3, and a wire guide structure 4. The base 1 has a first mounting hole 11 and a second mounting hole 12 on one side. The first mounting hole 11 is adapted for the first winding module 200 to rotate, and the second mounting hole 12 is adapted for the second winding module 300 to rotate. The base 1 has a wire outlet 13 on the side radially close to the second mounting hole 12. The first drive structure 2 is provided corresponding to the first mounting hole 11 and is adapted to drive the first winding module 200 to rotate forward or backward, so that the first winding module 200 can unwind or rewind the first rope 210. The second drive structure 3 is provided corresponding to the second mounting hole 12 and is adapted to drive the second winding module 300 to rotate forward or backward, so that the second winding module 300 can unwind or rewind the second rope 310. The wire guide structure 4 includes a first guide wheel 41 rotatably mounted on the base 1. The first guide wheel 41 is adapted to form a wire clamping area between itself and the second winding module 300. The wire clamping area is adapted for the first rope 210 and the second rope 310 to pass through and be guided towards the outlet 13 under the guidance of the first guide wheel 41. The wire clamping area is adapted to clamp the two sides of the winding end of the first rope 210 respectively and form friction with the first rope 210. Under the action of the first guide wheel 41, the second rope 310 is adapted to adhere to the outside of the first rope 210 after passing through the wire clamping area.
[0033] In this embodiment, by providing a first driving structure 2 and a second driving structure 3, the first driving structure 2 drives the first winding module 200 to rotate in either the forward or reverse direction, thereby releasing or retracting the first rope 210. Similarly, the second driving structure 3 drives the second winding module 300 to rotate in either the forward or reverse direction, thereby releasing or retracting the second rope 310. The automatic release and retraction of the rope via the first driving structure 2 and the second driving structure 3 eliminates the need for manual winding by the user, making operation significantly less strenuous. Furthermore, a line guide structure 4 is provided, which guides the first rope 210 toward the outlet 13. A clamping area is formed between the first guide wheel 41 and the second winding module 300 of the line guide structure 4. Under the guidance of the first guide wheel 41, the second rope 310, after passing through this clamping area, adheres to the first rope 210 and extends from the outlet 13 together, thus connecting to the pet. Friction is generated between the first rope 210, the first guide wheel 41, and the second winding module 300. The rotation of the second winding module 300, under the action of friction, drives the first rope 210 to move. Therefore, even without activating the first drive structure 2, the first rope 210 can still be wound in or out via the second winding module 300. When the first drive structure 2 and the second drive structure 3 are activated simultaneously, the winding and unwinding forces can be greater, which can better cope with different traction conditions, making the traction device 1000 more applicable and thus providing a better user experience.
[0034] The shape and size of the base 1 can be reasonably set according to the required winding length of the rope. The base 1 can be flat, box-shaped, or a support shape composed of multiple plate-shaped structures. Preferably, the base 1 can be trough-shaped, having a bottom wall and multiple side walls surrounding the bottom wall. The first mounting hole 11 and the second mounting hole 12 are both provided on the bottom wall of the base 1, so that the first winding module 200 and the second winding module 300 can be provided on the bottom wall. The outlet 13 is formed on the side wall of the base 1 and is located on the side close to the second winding module 300, so that both the first rope 210 and the second rope 310 can be wound out from the outlet 13.
[0035] Because pet leashes should not be too thin, their strength is unreliable, and excessively thin ropes can easily entangle and injure pets. In this embodiment, the first rope 210 is flat, and its width is greater than that of the second rope 310. Therefore, the first rope 210 requires a larger winding area compared to the second rope 310. Preferably, the outer diameters of the first winding reel of the first winding module 200 and the second winding reel of the second winding module 300 can be different, so that the winding amount of the first winding module 200 is greater, and the overall winding area occupied by the first winding module 200 and the second winding module 300 is similar, resulting in a more compact structure. Preferably, as... Figure 1 As shown, the diameter of the first mounting hole 11 is smaller than the diameter of the second mounting hole 12. Furthermore, the first mounting hole 11 and the second mounting hole 12 are arranged side-by-side, making the first winding module 200 and the second winding module 300 closer together after being mounted on the base 1, resulting in a more compact structure and thus occupying less space.
[0036] The second rope 310 has a greater stiffness than the first rope 210. The first rope 210 is made of a flexible rope material, such as nylon or cotton. The second rope 310 is made of a metal material, such as metal sheet or wire. Furthermore, the width of the first rope 210 is greater than the width of the second rope 310, allowing the second rope 310 to provide a certain degree of rigid support to the first rope 210 without being excessively stiff. This ensures that the leash does not become tangled while maintaining flexibility, allowing the pet greater freedom of movement.
[0037] Furthermore, both the first rope 210 and the second rope 310 are elongated, with their outgoing and fixed ends corresponding to the two ends along their length, respectively. The outgoing end is closer to the pet, while the fixed end is fixed to one end of the first or second winding reel. The first rope 210 is flat, and the outgoing end of the second rope 310 is bonded or welded to the first rope 210. Preferably, along the width of the first rope 210, the second rope 310 is located in the middle of the first rope 210 to provide stable support for it.
[0038] The first guide wheel 41 is cylindrical and rotatably mounted on the base 1. Preferably, the first mounting hole 11 and the second mounting hole 12 are located on the same bottom wall surface of the base 1, and the first guide wheel 41, the first mounting hole 11, and the second mounting hole 12 are located on the same plane. The first guide wheel 41 is located on one radial side of the second mounting hole 12 and is positioned close to the cable outlet 13. The guiding surface of the first guide wheel 41 is adapted to correspond to the winding area of the first winding module 200 and the winding area of the second winding module 300. The guiding surface of the first guide wheel 41 is the outer peripheral surface of the first guide wheel 41. The first rope 210 wound from the first winding reel can pass through the clamping area. Through the clamping and traction force of the clamping area on the first rope 210, the first rope 210 located between the first winding reel and the first guide wheel 41 can be kept in a taut state, so as to facilitate the winding in or out of the first rope 210. The second rope 310, which is wound from the second winding reel, can be reversed by the first guide wheel 41, so that the second rope 310 can be led out toward the outlet 13.
[0039] When the second winding reel is installed at the second mounting hole 12, the outer periphery of the second winding reel and the first guide wheel 41 form the aforementioned clamping area, so that when the first rope 210 passes through the clamping area, the second winding reel and the first rope 210 can be configured with an interference fit. Thus, when the second winding reel rotates, the first rope 210 is driven to move by friction. Therefore, even when only the second winding reel is rotated, the first rope 210 can be driven to wind in or out of the first winding reel, which saves more energy.
[0040] Because the second rope 310 has greater stiffness than the first rope 210, it can be tensioned on its own when it winds out, without needing to be pulled by the first guide wheel 41. Therefore, placing the first guide wheel 41 close to the second mounting hole 12 provides better tension for the first rope 210 and allows the second rope 310 to be reversed, so that it can better adhere to the first rope 210 and be led out from the outlet 13 together.
[0041] Furthermore, combined Figure 1 , Figure 3 and Figure 4As shown, the wire guide structure 4 also includes a second guide wheel 42 and a third guide wheel 43 rotatably mounted on the base 1. The second guide wheel 42 and the third guide wheel 43 are located on the wire path between the first mounting hole 11 and the first guide wheel 41, and the first guide wheel 41, the second guide wheel 42 and the third guide wheel 43 are all located on the same side of the first mounting hole 11, and the three are arranged in a non-linear manner. Preferably, the first guide wheel 41, the second guide wheel 42 and the third guide wheel 43 are arranged in a triangular pattern. After the first rope 210 is wound out from the first winding reel, it first passes through the third guide wheel 43, then winds around the second guide wheel 42 and enters the clamping area. The second guide wheel 42 and the third guide wheel 43 further tighten the first rope 210 between the first guide wheel 41 and the first winding reel, preventing the first rope 210 from being too slack and forming entanglement inside the traction device 1000.
[0042] Moreover, such as Figure 1 As shown, the first mounting hole 11 and the second mounting hole 12 are located on the same side of the cable outlet 13. The first guide wheel 41 is positioned corresponding to the cable outlet 13, while the second guide wheel 42 and the third guide wheel 43 are located on the other side of the cable outlet 13. For example, the first mounting hole 11 and the second mounting hole 12 are located on the left side of the cable outlet 13, while the second guide wheel 42 and the third guide wheel 43 are located on the right side of the cable outlet 13. The first guide wheel 41 is positioned directly opposite the cable outlet 13. This allows the second guide wheel 42 and the third guide wheel 43 to be positioned away from the first winding reel, resulting in a better traction and tension effect on the first rope 210. Furthermore, it makes better use of the internal space of the base 1, resulting in a smaller overall size.
[0043] In the direction along which the first rope 210 is wound, the second guide wheel 42 is located between the first guide wheel 41 and the third guide wheel 43. Among the first guide wheel 41, the second guide wheel 42, and the third guide wheel 43, the distance between the third guide wheel 43 and the first mounting hole 11, and the distance between the third guide wheel 43 and the outlet 13, are the greatest. The third guide wheel 43 allows the first rope 210 to fully extend, thus ensuring that the first rope 210 has a sufficiently taut section before exiting from the outlet 13, resulting in smoother winding of the first rope 210 in and out.
[0044] The first drive structure 2 is mainly used to drive the first winding disk to rotate. Preferably, it is combined with... Figure 1 and Figure 2As shown, the first drive structure 2 includes a first driver 21 and a first drive disk 22 connected to the first driver 21. The first drive disk 22 is provided with a positioning part 23, which is adapted to cooperate with the mating part on the first winding module 200. The first driver 21 is used to drive the first drive disk 22 to rotate and, under the cooperation of the positioning part 23 and the mating part, drive the first winding module 200 to rotate together. The first driver 21 can be configured as a motor or an electric cylinder. The first drive disk 22 is connected to the drive shaft of the first driver 21, and the first drive disk 22 is coaxially arranged with the first mounting hole 11. When the first winding disk is installed at the first mounting hole 11, the first drive disk 22 and the first winding disk are coaxially arranged. The first drive disk 22 and the first winding disk are detachably connected. The first driver 21 drives the first drive disk 22 to rotate, thereby driving the first winding disk to rotate, realizing the winding in or out of the first rope 210.
[0045] Moreover, the first driver 21 can drive the first drive disk 22 to rotate in both directions, thereby driving the first winding disk to rotate in both directions to control the unwinding and rewinding of the first rope 210. This allows both unwinding and rewinding to be achieved by the first driver 21, saving more effort and making the operation easier for the user.
[0046] Preferably, combined with Figure 1 and Figure 2 As shown, the positioning part 23 includes a plurality of first connecting holes 231 and a plurality of first positioning holes 232 disposed on the first drive disk 22. The plurality of first connecting holes 231 and the plurality of first positioning holes 232 are arranged at intervals along the same circumference. The plurality of first positioning holes 232 first form a circumferential positioning with the first winding disk, and then are connected to the plurality of first connecting holes 231 and the plurality of second connecting holes of the first winding disk by a plurality of connectors, thereby completely fixing the first winding disk to the first drive disk 22, so that when the first drive disk 22 rotates, it can better drive the first winding disk to rotate. The arrangement of the positioning part 23 includes, but is not limited to, the above, so that the first winding disk and the first drive disk 22 can be disassembled and assembled, and will not be described in detail here.
[0047] In one embodiment, at least one of the first and second winding reels is provided with an elastic element. The elastic element can keep the portion of the first rope 210 wound from the first winding reel and the portion of the second rope 310 wound from the second winding reel taut, preventing the leash from scattering and easily getting tangled or knotted, and allowing the leash to exert a certain pulling force on the pet.
[0048] Preferably, the elastic element is a coil spring. When the second rope 310 is subjected to external force and unwinds from the second winding reel, the coil spring is in a tightened state; when the external force on the second rope 310 is removed, the coil spring is in a released state, allowing the second rope 310 to automatically wind back onto the second winding reel. This ensures that the traction rope remains taut throughout the winding and unwinding process, resulting in better traction. For example, when the traction rope is connected to a pet, the pet can provide the power for the traction rope to wind out. When the pet moves close to the winding assembly, the unwinding traction rope will be in a slack state. At this time, under the stress of the coil spring, the first winding reel and / or the second winding reel can be driven to contract and rotate, thereby tightening the traction rope.
[0049] In one embodiment, the second drive structure 3 can be configured in the same way as the first drive structure 2.
[0050] In another embodiment, since the coil spring provides a certain winding force, and the second rope 310 is closer to the outlet 13 than the first rope 210, the winding and unwinding speed of the second rope 310 is slower than that of the first rope 210 to better ensure consistent winding and unwinding speeds. Specifically, the second drive structure 3 includes a second driver and a reduction gear 32 connected to the second driver. The reduction gear 32 has an output section 321, which is adapted to engage with the second winding module 300 to prevent rotation. The second driver drives the reduction gear 32 to rotate, causing the second winding module 300 to rotate as well. The reduction gear 32 can effectively adjust and control the winding and unwinding speed of the second rope 310, thereby better matching it with the winding and unwinding speed of the first rope 210.
[0051] Furthermore, combined Figure 1 and Figure 2 As shown, the reduction device 32 is configured as a planetary reducer, which includes a planet carrier. The output part 321 includes a transmission groove 3211 located on the side of the planet carrier facing away from the second driver. The transmission groove 3211 is adapted to cooperate with the transmission boss on the second winding module 300, so that the rotation of the planet carrier drives the second winding module 300 to rotate together. This makes it easier to install the second winding module 300 on the second drive structure 3, and the assembly operation is simpler and more convenient.
[0052] This utility model also provides a traction device 1000, combined with Figure 3 and Figure 4As shown, the traction device 1000 includes the aforementioned traction drive mechanism 100, and also includes a first winding module 200 and a second winding module 300. The first drive structure 2 of the traction drive mechanism 100 drives the first winding disc of the first winding module 200 to rotate, thereby achieving the winding and unwinding of the first rope 210. The second drive structure 3 of the traction drive mechanism 100 drives the second winding disc of the second winding module 300 to rotate, thereby achieving the winding and unwinding of the second rope 310. This eliminates the need for manual adjustment in the operation of the traction device 1000, making the winding and unwinding operations simpler and easier, and providing a better user experience.
[0053] Furthermore, the traction device 1000 may also include a controller, and detection devices, such as position sensors and / or force sensors, may be installed on the first rope 210 and / or the second rope 310. The controller is electrically connected to the detection devices and to the first driver 21 and the second driver. When the position sensor detects that the first rope 210 and / or the second rope 310 are at their unwinding limit position, the controller can control the first driver 21 and the second driver to rotate in opposite directions according to the detection structure of the position sensor, so as to wind up the first rope 210 and the second rope 310 and prevent the traction rope from being completely pulled out and damaged. And / or, when the force sensor detects that the tensile force on the first rope 210 and / or the second rope 310 is too large or too small, the controller can control the rotation direction of the first driver 21 and the second driver according to the detection structure of the force sensor, so as to wind up or unwind the first rope 210 and the second rope 310 and prevent the traction rope from being subjected to excessive tensile force, which could lead to breakage. Furthermore, the system can determine the pet's condition based on the detection results, providing a traction force and direction similar to that of a human leash, resulting in better traction and thus enhancing the user experience.
[0054] 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 structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. A traction drive mechanism characterized by, include: The base has a first mounting hole and a second mounting hole on one side. The first mounting hole is adapted to allow a first winding module to be rotated, and the second mounting hole is adapted to allow a second winding module to be rotated. The base has a wire outlet on the side along the radial direction close to the second mounting hole. The first drive structure, corresponding to the first mounting hole, is adapted to drive the first winding module to rotate in the forward or reverse direction, so that the first winding module can release or retract the first rope. The second drive structure, corresponding to the second mounting hole, is adapted to drive the second winding module to rotate in the forward or reverse direction, so that the second winding module can release or retract the second rope. The cable guide structure includes a first guide wheel rotatably mounted on the base. The first guide wheel is adapted to form a clamping area with the second winding module. The clamping area is adapted to allow the first rope and the second rope to pass through and to be guided towards the outlet under the guidance of the first guide wheel. The clamping area is adapted to clamp the two sides of the winding end of the first rope respectively and to form friction with the first rope. Under the action of the first guide wheel, the second rope is adapted to adhere to the outside of the first rope after passing through the clamping area.
2. The traction drive mechanism of claim 1, wherein, The first guide wheel is located on one radial side of the second mounting hole and is disposed near the outlet. The guide surface of the first guide wheel is adapted to correspond to the winding area of the first winding module and the winding area of the second winding module.
3. The traction drive mechanism of claim 1, wherein, The wire guide structure further includes a second guide wheel and a third guide wheel rotatably mounted on the base. The second guide wheel and the third guide wheel are located on the wire path between the first mounting hole and the first guide wheel. The first guide wheel, the second guide wheel and the third guide wheel are all located on the same side of the first mounting hole, and the three are arranged in a non-linear manner.
4. The traction drive mechanism of claim 3, wherein, The first mounting hole and the second mounting hole are located on the same plane and on the same side of the outlet. The first guide wheel is positioned corresponding to the outlet, and the second and third guide wheels are located on the other side of the outlet.
5. The traction drive mechanism of claim 3, wherein, In the direction along which the first rope is wound, the second guide wheel is located between the first guide wheel and the third guide wheel, and among the first guide wheel, the second guide wheel and the third guide wheel, the third guide wheel has the longest distance between itself and the first mounting hole, as well as the distance between itself and the outlet.
6. The traction drive mechanism of claim 1, wherein, The first driving structure includes a first driver and a first driving disk connected to the first driver. The first driving disk is provided with a positioning part, which is adapted to cooperate with a mating part on the first winding module. The first driver is used to drive the first driving disk to rotate and, under the cooperation of the positioning part and the mating part, drive the first winding module to rotate together.
7. The traction drive mechanism of claim 6, wherein, The positioning part includes a plurality of first connecting holes and a plurality of first positioning holes disposed on the first drive disk, wherein the plurality of first connecting holes and the plurality of first positioning holes are arranged at intervals along the same circumference.
8. The traction drive mechanism of claim 1, wherein, The second drive structure includes a second driver and a reduction gear connected to the second driver. The reduction gear has an output section adapted to engage with the second winding module to prevent rotation. The second driver drives the reduction gear to rotate, thereby causing the second winding module to rotate as well.
9. The traction drive mechanism of claim 8, wherein, The deceleration device is configured as a planetary reducer, which includes a planet carrier. The output part includes a transmission groove on the side of the planet carrier facing away from the second driver. The transmission groove is adapted to cooperate with the transmission boss on the second winding module, so that the planet carrier rotates and drives the second winding module to rotate together.
10. A traction device, characterized in that Includes the traction drive mechanism as described in any one of claims 1 to 9.