Rope retraction device and pet leashing equipment

Abstract

This utility model discloses a rope winding and unwinding device and a pet-walking traction device. The rope winding and unwinding device includes a base, a first winding module, a second winding module, and an elastic element. The first winding module includes a first winding reel and a main rope; the second winding module includes a second winding reel and an auxiliary rope; the elastic element is disposed on at least one of the first and second winding modules. When the tension on the rope is greater than the winding force of the elastic element, the first and second winding reels can be driven to rotate in the unwinding direction under the action of the main rope and the auxiliary rope; when the tension on the rope is less than the winding force of the elastic element, the first and second winding reels can be driven to rotate in the winding direction under the action of the winding force of the elastic element. This utility model can realize automatic rope winding and unwinding, eliminating the need for constant user adjustment, making it more convenient to use, and the unwinding of the rope will not cause a large impact force on the user, thus better protecting the user.

Description

Technical Field

[0001] This utility model relates to the technical field of traction tools, specifically to a rope retraction device and a pet traction device. Background Technology

[0002] Pet walking equipment typically includes a leash, which is used to lead pets on outdoor walks. Traditional leashes are usually made of simple, flexible rope materials, allowing dogs to move freely within a certain range while the owner can maintain control. During leash walking, 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 tethering the pet. This requires frequent intervention and is quite strenuous. Furthermore, there is a possibility that if the pet suddenly runs off, the increased force on the leash could pull the owner down, causing injury. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the main purpose of this utility model is to provide a rope release and take-off device and a pet traction device, which aims to solve the problem that traditional traction devices require frequent operation by users, are relatively laborious to use, and may also cause personal injury to users and cause the risk of injury or death.

[0004] To achieve the above objectives, this utility model proposes a rope reeling and releasing device, comprising:

[0005] Base;

[0006] The first winding module includes a first winding reel rotatably mounted on the base and a main rope wound on the first winding reel;

[0007] The second winding module includes a second winding reel rotatably mounted on the base and an auxiliary rope wound on the second winding reel. Both the main rope and the auxiliary rope have winding ends that are wound out from the corresponding winding reel, and the winding ends of the auxiliary rope and the winding ends of the main rope are connected.

[0008] An elastic element is disposed on at least one of the first winding module and the second winding module to provide an elastic winding force;

[0009] Specifically, when the tension at the exit end of the auxiliary rope and the exit end of the main rope is greater than the winding force of the elastic element, the first winding reel and the second winding reel can be driven to rotate in the unwinding direction under the action of the main rope and the auxiliary rope; when the tension at the exit end of the auxiliary rope and the exit end of the main rope is less than the winding force of the elastic element, the first winding reel and the second winding reel can be driven to rotate in the winding direction under the action of the winding force of the elastic element.

[0010] Optionally, the stiffness of the auxiliary rope is greater than that of the main rope, and the elastic element is disposed on the second winding reel.

[0011] Optionally, the elastic element is configured as a coil spring, which is disposed on the second winding reel. When the second winding reel rotates in the unwinding direction, the coil spring is in a tightened and energy-storing state to generate a winding force. When the external force on the auxiliary rope is removed or is less than the winding force of the coil spring, the coil spring releases energy to drive the second winding reel to rotate in the winding direction.

[0012] Optionally, the base is provided with a first mounting hole, and the main rope has a fixed end opposite to its winding end; the first winding reel includes:

[0013] The first winding base is rotatably disposed in the first mounting hole and has a winding groove protruding from one side along its axial direction. The winding groove protrudes from the first mounting hole and has a notch on one side. The fixed end of the main rope is sleeved in the winding groove, and the main rope can be wound out from the notch to be wound around the outer periphery of the winding groove.

[0014] The first cover plate is connected to the base and covers the opening of the winding groove, allowing the first winding chassis to rotate relative to the first cover plate.

[0015] Optionally, the base is provided with a second mounting hole, and the auxiliary rope has a fixed end opposite to its winding end; the second winding reel includes:

[0016] The second winding base is rotatably disposed in the second mounting hole and has a winding ring protruding from the second mounting hole. The outer periphery of the winding ring is provided with a groove extending circumferentially therethrough. At least a portion of the outer periphery of the second winding base abuts against the main rope. When the second winding base rotates, it can provide winding out or winding in power to the main rope.

[0017] A pressure cap structure is provided on the end of the winding ring and connected to the base, so that the second winding base can rotate relative to the pressure cap structure;

[0018] The coil spring is arranged in a disc shape, having a center end and a free end. The center end of the coil spring is fixed to the inner ring side of the winding ring, and the free end of the coil spring is fixed to the pressure cap structure.

[0019] Optionally, the pressure cap structure includes a second cover plate covering the end of the inner ring side of the winding ring, and a pressure plate connected to the second cover plate. The free end of the coil spring is fixed to the second cover plate. The pressure plate is connected to the base and forms an anti-rotation fit with the second cover plate.

[0020] Optionally, the inner ring side of the winding ring is provided with a first clamping part and a second clamping part arranged opposite to each other. The first clamping part and the second clamping part are arranged at a distance from each other along the radial direction of the winding ring, and the first clamping part and the second clamping part are clamped and fixed on both sides of the center end of the coil spring.

[0021] Optionally, the second winding chassis has a rotating portion located within the second mounting hole;

[0022] The second winding module further includes a first bearing and a second bearing, the first bearing being rotatably connected to the rotating part and the second mounting hole, and the second bearing being rotatably connected to the winding ring and the second cover plate.

[0023] Optionally, one of the second cover plate and the pressure plate is provided with a limiting protrusion, and the other is provided with a limiting recess that cooperates with the limiting protrusion. The cross-sections of the limiting protrusion and the limiting recess are both non-circular.

[0024] This utility model also provides a pet leash device, including the above-mentioned rope retraction and release device.

[0025] The technical solution provided by this utility model has the following beneficial effects:

[0026] The rope winding and unwinding device provided by this utility model includes a base, a first winding module, a second winding module, and an elastic element. The first winding reel of the first winding module can be used to wind the main rope on it. The main rope can be unwound and wound up by rotating the first winding reel relative to the base. The second winding reel of the second winding module can be used to wind the auxiliary rope on it. The main rope can be unwound and wound up by rotating the second winding reel relative to the base. Furthermore, by providing elastic elements on at least one of the first and second winding modules, when the tension at the exit end of the auxiliary rope and the exit end of the main rope is greater than the winding force of the elastic element, the first and second winding reels can be driven to rotate in the unwinding direction under the action of the main and auxiliary ropes. That is, under the pulling force of the pet or owner, the main and auxiliary ropes can automatically unwind from their corresponding winding reels. At the same time, during the unwinding process, the elastic element is in a state of gradual energy storage, which can provide a certain reverse force to the main and auxiliary ropes, so that the unwinding ropes can be kept taut, preventing the ropes from falling freely and causing tangling. Moreover, when the tension at the exit end of the auxiliary rope and the exit end of the main rope is less than the winding force of the elastic element, the first and second winding reels can be driven to rotate in the winding direction under the action of the winding force of the elastic element. When a pet is close to the leash reel, the elastic element automatically drives the first and / or second winding reels to rotate in the winding direction. This allows the main and auxiliary ropes to be automatically wound onto the corresponding reels, preventing excessive rope extension and tangling. Furthermore, during use, the leash reel automatically winds out the main and auxiliary ropes under external force and automatically winds them back in when there is little or no external force. This automatic winding and unwinding eliminates the need for constant user adjustment, saving effort and providing greater peace of mind. Even if the pet suddenly runs away, the rope will automatically wind out without causing significant impact to the user, thus better protecting them. Attached Figure Description

[0027] 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.

[0028] Figure 1 A schematic diagram of an embodiment of a rope reeling and releasing device provided by this utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of the rope take-up and release device described in the figure from another perspective;

[0030] Figure 3 for Figure 1 An exploded view of the rope take-up and release device described herein;

[0031] Figure 4 for Figure 1 A cross-sectional structural schematic diagram of the rope deployment and take-up device described herein;

[0032] Figure 5 for Figure 1 The diagram shows the structure of the first winding module and the second winding module.

[0033] Explanation of icon numbers:

[0034] 100-Rope winding and unwinding device; 1-Base; 11-First mounting hole; 12-Second mounting hole; 2-First winding module; 21-First winding reel; 211-First winding base; 2111-Winding groove; 212-First cover plate; 22-Main rope; 3-Second winding module; 31-Second winding reel; 311-Second winding base; 3111-First clamping part; 3112-Second clamping part; 312-Second cover plate; 3121-Limiting protrusion; 313-Pressure plate; 3131-Limiting recess; 32-Auxiliary rope; 321-Snap ring; 33-First bearing; 34-Second bearing; 35-Cable clamping post; 4-Elastic element; 5-Telescopic rope sleeve; 6-First driver; 7-Second driver.

[0035] 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

[0036] 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.

[0037] 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.

[0038] 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.

[0039] This utility model provides a rope winding and unwinding device 100, which can be used to automatically wind and unwind ropes. For details, please refer to... Figures 1 to 3 In this embodiment, the rope winding and unwinding device 100 includes a base 1, a first winding module 2, a second winding module 3, and an elastic element 4.

[0040] The shape and size of the base 1 can be reasonably set according to the required 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 arranged in a groove shape, having a bottom wall and multiple side walls surrounding the bottom wall, and the first winding module 2 and the second winding module 3 can be disposed on the bottom wall.

[0041] The first winding module 2 includes a first winding reel 21 rotatably mounted on the base 1 and a main rope 22 wound on the first winding reel 21.

[0042] The second winding module 3 includes a second winding reel 31 rotatably mounted on the base 1 and an auxiliary rope 32 wound on the second winding reel 31. Both the main rope 22 and the auxiliary rope 32 have winding ends that are wound out from the corresponding winding reel, and the winding ends of the auxiliary rope 32 are connected to the winding ends of the main rope 22.

[0043] The elastic element 4 is disposed on at least one of the first winding module 2 and the second winding module 3 to provide elastic winding force.

[0044] Specifically, when the tension at the exit end of the auxiliary rope 32 and the exit end of the main rope 22 is greater than the winding force of the elastic element 4, the first winding reel 21 and the second winding reel 31 can be driven to rotate in the unwinding direction under the action of the main rope 22 and the auxiliary rope 32; when the tension at the exit end of the auxiliary rope 32 and the exit end of the main rope 22 is less than the winding force of the elastic element 4, the first winding reel 21 and the second winding reel 31 can be driven to rotate in the winding direction under the action of the winding force of the elastic element 4.

[0045] In this embodiment, the first winding reel 21 of the first winding module 2 can be used to wind the main rope 22. The main rope 22 can be unwound and wound up by rotating the first winding reel 21 relative to the base 1. The second winding reel 31 of the second winding module 3 can be used to wind the auxiliary rope 32. The main rope 22 can be unwound and wound up by rotating the second winding reel 31 relative to the base 1.

[0046] Furthermore, by providing an elastic element 4 on at least one of the first winding module 2 and the second winding module 3, when the tension on the winding end of the auxiliary rope 32 and the winding end of the main rope 22 is greater than the winding force of the elastic element 4, the first winding reel 21 and the second winding reel 31 can be driven to rotate in the unwinding direction under the action of the main rope 22 and the auxiliary rope 32. That is, under the pulling force of the pet or the owner, the main rope 22 and the auxiliary rope 32 can automatically wind out from the corresponding winding reel. At the same time, during the winding process, the elastic element 4 is in a state of gradual energy storage, which can provide a certain reverse force to the main rope 22 and the auxiliary rope 32, so that the wound rope can be kept in a taut state, avoiding the rope from falling freely and causing tangling.

[0047] Furthermore, when the tension at the exit end of the auxiliary rope 32 and the exit end of the main rope 22 is less than the winding force of the elastic element 4, the winding force of the elastic element 4 can drive both the first winding reel 21 and the second winding reel 31 to rotate in the winding direction. That is, when the pet is close to the rope retraction device 100, the elastic element 4 can automatically drive the first winding reel 21 and / or the second winding reel 31 to rotate in the winding direction, so that the main rope 22 and the auxiliary rope 32 can be automatically wound onto the corresponding winding reels, thus avoiding excessively long ropes that could cause tangling. Moreover, during use, the rope retraction device 100 automatically winds out the main rope 22 and the auxiliary rope 32 when subjected to external force, and automatically winds in when there is no external force or the external force is small, thereby achieving automatic winding and unwinding of the rope. This eliminates the need for constant adjustment by the user, saving effort and making it more worry-free to use. Even if the pet suddenly runs away, the rope can automatically wind out without causing a large impact on the user, thus better protecting the user.

[0048] It is understood that, in one embodiment, elastic elements 4 can be provided on both the first winding reel 21 and the second winding reel 31. The two elastic elements 4 can better realize the winding of the first winding reel 21 and the second winding reel 31, so that both the main rope 22 and the auxiliary rope 32 can be automatically wound, and the winding effect is better.

[0049] Because the stiffness of the auxiliary rope 32 is greater than that of the main rope 22, the auxiliary rope 32 provides support to the main rope 22. This allows the main rope 22 to maintain a certain tension after being unwound, supported by the stiffness of the auxiliary rope 32, preventing it from becoming too soft and falling freely. Therefore, preferably, in combination with... Figure 3 and Figure 5 As shown, an elastic element 4 can be provided on the second winding reel 31. The winding of the second winding reel 31 drives the auxiliary rope 32 to wind in, while simultaneously driving the main rope 22 to wind in and move onto the first winding reel 21. Moreover, the single elastic element 4 makes the structure simpler and the cost lower.

[0050] Preferably, the elastic element 4 is a coil spring, and more preferably a spiral coil spring. The coil spring is located on the second winding reel 31. When the second winding reel 31 rotates in the unwinding direction, the coil spring is in a tightened, energy-storing state to generate a winding force. The coil spring provides a certain reaction force to the auxiliary rope 32, so that the wound rope can remain taut. When the external force on the auxiliary rope 32 is removed or is less than the winding force of the coil spring, the coil spring releases energy to drive the second winding reel 31 to rotate in the winding direction, thereby realizing automatic winding of the rope and preventing the unwound rope from being too long and causing tangling.

[0051] The first winding reel 21 is mainly used for winding the main rope 22. Specifically, in conjunction with... Figure 3 and Figure 4 As shown, a first mounting hole 11 is provided on the base 1. The main rope 22 has a fixed end opposite to its winding end. The fixed end of the main rope 22 is used to fix it on the first winding reel 21, which makes it easy for the main rope 22 to be wound onto the first winding reel 21. Moreover, when the main rope 22 is fully wound out, it is fixed to the first winding reel 21 by the fixed end of the main rope 22, which can prevent the main rope 22 from being completely stuck out of the rope take-up and release device 100.

[0052] Preferably, such as Figure 3 and Figure 4As shown, the first winding disc 21 includes a first winding base 211 and a first cover plate 212. The first winding base 211 is generally disc-shaped, rotatably disposed within the first mounting hole 11, and has a winding groove 2111 protruding from one side along its axial direction. The winding groove 2111 protrudes from the first mounting hole 11 and has a notch on one side. The fixed end of the main rope 22 is fitted into the winding groove 2111, and the winding groove 2111 limits the fixed end of the main rope 22. The main rope 22 can be wound out from the notch to be wound around the outer periphery of the winding groove 2111. The first cover plate 212 is connected to the base 1 and covers the opening of the winding groove 2111, allowing the first winding base 211 to rotate relative to the first cover plate 212. The first cover plate 212 can block the opening end of the winding groove 2111, which on the one hand can prevent the fixed end of the main rope 22 from coming out of the winding groove 2111, and on the other hand can limit the multi-layer main rope 22 wound on the outer periphery of the winding groove 2111, thus preventing the main rope 22 from coming out of one end of the winding groove 2111 and ensuring a better winding effect for the main rope 22.

[0053] The first cover plate 212 is generally flat and is connected and fixed to the base 1 by multiple screws or bolts. A positioning protrusion is provided on the side of the first cover plate 212 facing the first winding reel 21. The positioning protrusion presses against the fixed end of the main rope 22, fixing the fixed end of the main rope 22 while allowing the first winding reel 21 to rotate relative to the first cover plate 212 for winding or unwinding.

[0054] The second winding reel 31 is mainly used for winding the auxiliary rope 32. Specifically, a second mounting hole 12 is provided on the base 1. The auxiliary rope 32 has a fixed end opposite to its winding end. The fixed end of the auxiliary rope 32 is used to fix it to the second winding reel 31 to facilitate the unwinding and winding of the auxiliary rope 32, and to prevent the auxiliary rope 32 from completely coming off the second winding reel 31.

[0055] Preferably, combined again Figure 3 and Figure 4As shown, the second winding reel 31 includes a second winding base 311 and a pressure cap structure. The second winding base 311 is rotatably disposed within the second mounting hole 12 and has a winding ring protruding from the second mounting hole 12. It should be noted that, when the rope take-up and release device 100 is operating normally, both the first mounting hole 11 and the second mounting hole 12 are located on a horizontally positioned plane of the base 1. Preferably, the winding areas of the first winding reel 21 and the second winding reel 31 at least partially overlap in their horizontal projections, so that the main rope 22 and the auxiliary rope 32 can fit together better when they are wound out. At this time, the first cover plate 212 covers the first winding base 211, and the pressure cap structure is located above the second winding base 311. Unless otherwise specified, the descriptions of orientations in this utility model shall be taken into account here.

[0056] A groove extending circumferentially through the outer periphery of the winding ring forms the winding area of ​​the second winding disc 31. At least a portion of the outer periphery of the second winding disc 311 abuts against the main rope 22, providing winding-out or winding-in power to the main rope 22 when the second winding disc 311 rotates. Specifically, a guide wheel is provided on one radial side of the second winding disc 311, spaced apart from the groove opening of the second winding disc 311. The winding-out end of the main rope 22 passes through the gap between the guide wheel and the groove, creating an interference fit between the second winding disc 311 and the main rope 22. When the second winding base 311 rotates toward the direction in which the auxiliary rope 32 is wound out, the friction between the second winding base 311 and the main rope 22 drives the main rope 22 to move toward the direction of winding out; when the second winding base 311 rotates toward the direction in which the auxiliary rope 32 is wound in, the friction between the second winding base 311 and the main rope 22 drives the main rope 22 to move toward the direction of winding in. The winding of the two ropes can be achieved by rotating the second winding base 311.

[0057] The pressure cap structure covers the end of the winding ring and is connected to the base 1, allowing the second winding base 311 to rotate relative to the pressure cap structure. The coil spring is disc-shaped, and preferably a spiral coil spring with a center end and a free end. The center end of the coil spring is fixed to the inner ring side of the winding ring, and the free end of the coil spring is fixed to the pressure cap structure. When the auxiliary rope 32 is wound outward, the free end of the coil spring contracts in the direction of gradual tightening, causing the coil spring to generate a winding stress to ensure that the traction rope remains taut. When the auxiliary rope 32 is no longer pulled by the pet or when the tension on the auxiliary rope 32 is less than the winding stress of the coil spring, the winding stress of the coil spring can drive the second winding base 311 to rotate in the opposite direction, causing the auxiliary rope 32 to be wound into the groove of the second winding base 311, achieving automatic winding.

[0058] The pressure cap structure is used to restrict and fix the free end of the coil spring. Preferably, the pressure cap structure includes a second cover plate 312 covering the inner ring side of the winding ring and a pressure plate 313 connected to the second cover plate 312. The free end of the coil spring is fixed to the second cover plate 312, and the pressure plate 313 is connected to the base 1 and forms an anti-rotation fit with the second cover plate 312. The pressure plate 313 can be fixed to the base 1 by screws or bolts. By restricting the movement of the second cover plate 312 by the pressure plate 313, the second winding base 311 can act on the coil spring during rotation, causing the coil spring to generate winding stress, thereby allowing the coil spring to better act on the auxiliary rope 32.

[0059] Understandably, the second cover plate 312 and the pressure plate 313 can be integrated as a single unit, resulting in fewer assembly parts. Alternatively, the second cover plate 312 and the pressure plate 313 can be connected by screws or bolts to ensure that the second cover plate 312 and the pressure plate 313 do not rotate relative to each other.

[0060] However, since the free end of the coil spring needs to be fixed to the second cover plate 312, if the second cover plate 312 and the pressure plate 313 are completely fixed, it will affect the connection between the pressure plate 313 and the base 1, making it impossible for the pressure plate 313 and the base 1 to be accurately aligned, thus causing assembly difficulties. Preferably, as Figure 4 As shown, a limiting protrusion 3121 is provided on one of the second cover plate 312 and the pressure plate 313, and a limiting recess 3131 is provided on the other to cooperate with the limiting protrusion 3121. The cross-sections of both the limiting protrusion 3121 and the limiting recess 3131 are non-circular. During assembly, the second cover plate 312 can be placed on the second winding base 311, allowing the free end of the coil spring to be inserted and fixed on the second cover plate 312. Then, the pressure plate 313 is placed on the second cover plate 312, so that the limiting protrusion 3121 and the limiting recess 3131 are in relative alignment. The pressure plate 313 and the second cover plate 312 can be flexibly disassembled and assembled, making assembly more convenient. Moreover, the limiting of the second cover plate 312 is stable and reliable, preventing the second cover plate 312 from rotating relative to the base 1.

[0061] Moreover, combined Figure 5 As shown, a first clamping part 3111 and a second clamping part 3112 are provided on the inner ring side of the winding ring and are arranged opposite to each other. The first clamping part 3111 and the second clamping part 3112 are arranged at a distance from each other along the radial direction of the winding ring. The first clamping part 3111 and the second clamping part 3112 clamp and fix the center end of the coil spring on both sides, thereby fixing the center end of the coil spring. Moreover, the second cover plate 312 can press and cover the ends of the first clamping part 3111 and the second clamping part 3112 to prevent the center end of the coil spring from coming out and to ensure the stability of the coil spring during operation.

[0062] In this embodiment, because the winding stress of the coil spring is relatively small, if the rotational friction between the second winding base 311 and the second mounting hole 12 is too large, it will lead to winding failure. Figure 4 As shown, the second winding module 3 also includes a first bearing 33 and a second bearing 34, and the second winding base 311 has a rotating part located within the second mounting hole 12. The first bearing 33 rotatably connects the rotating part and the second mounting hole 12, and the second bearing 34 rotatably connects the winding ring and the second cover plate 312. This makes the second winding base 311 rotate more smoothly, and the force required to drive its rotation is smaller. Therefore, under the winding stress of the coil spring, the automatic winding of the auxiliary rope 32 can be better achieved.

[0063] In one embodiment, combined with Figure 2 and Figure 4 As shown, the rope retraction device 100 may also include a first driver 6 and a second driver 7. The first driver 6 is used to drive the first winding base 211 to rotate, and the second driver 7 is used to drive the second winding base 311 to rotate, so as to realize the automatic winding in and out of the main rope 22 and the auxiliary rope 32, and to better control the extension length of the traction rope, thereby better controlling the distance between the user and the pet.

[0064] The main rope 22 is made of a flexible rope material, such as nylon or cotton. The auxiliary rope 32 is made of a metal material, such as metal sheets or wires. Furthermore, the main rope 22 is wider than the auxiliary rope 32, allowing the auxiliary rope 32 to provide a certain degree of rigid support to the main rope 22 without being excessively stiff. This ensures the leash doesn't become tangled while maintaining flexibility, allowing the pet greater freedom of movement.

[0065] Furthermore, both the main rope 22 and the auxiliary rope 32 are elongated, with their outgoing and fixed ends corresponding to the two ends of their length directions, respectively. The outgoing end is closer to the pet, while the fixed end is fixed to one end of the first winding reel 21 or the second winding reel 31. The main rope 22 is flat, and the outgoing end of the auxiliary rope 32 is glued or welded to the main rope 22. Preferably, along the width direction of the main rope 22, the auxiliary rope 32 is located in the middle of the main rope 22 to provide stable support for it.

[0066] A locking post is provided at the fixed end of the main rope 22, and the locking post is adapted to be fitted into the winding groove 2111 of the first winding base 211. The locking post is roughly cylindrical, and the axial length of the locking post is consistent with the width of the main rope 22, so that the fixed end of the main rope 22 is fixed to the locking post.

[0067] An installation part is provided at the fixed end of the auxiliary rope 32. The installation part is adapted to cooperate with the mating part on the second winding reel 31 to fix the fixed end of the auxiliary rope 32 to the winding circumference of the second winding reel 31. The mating part includes a wire-clamping post 35 extending axially along the second winding reel 31. The wire-clamping post 35 is clamped on the two groove sidewalls of the groove on the outer circumference of the winding ring. The two ends of the wire-clamping post 35 are respectively inserted into the two groove sidewalls that are opposite each other in the vertical direction. The installation part includes a retaining ring 321 provided at the fixed end of the auxiliary rope 32. The retaining ring 321 is sleeved on the outside of the wire-clamping post 35, so that the auxiliary rope 32 can be wound in the groove. The structure is simple and ensures that the auxiliary rope 32 is not easy to fall out of the second winding base 311.

[0068] In addition, such as Figure 3 As shown, the traction rope also includes a telescopic rope sleeve 5, which is fitted over the exit end of the main rope 22 and covers the exit end of the auxiliary rope 32. One end of the telescopic rope sleeve 5 is adapted to be fixed to the rope outlet of the traction device body, and the other end is connected and fixed to the exit end of the main rope 22, allowing the locking head of the main rope 22 to be exposed from the telescopic rope sleeve 5. The telescopic rope sleeve 5 protects the main rope 22 and the auxiliary rope 32, increasing the strength of the traction rope and also making the traction rope more aesthetically pleasing.

[0069] The telescopic rope loop 5 is made of a flexible material. One end of the telescopic rope loop 5, which connects to the main body of the traction device, is open, and an edge extends outward from this opening. This edge is made of a rigid material to secure it in a groove at the rope outlet of the main body of the traction device, thus fixing one end of the telescopic rope loop 5 relative to the main body of the traction device. This prevents the main rope 22 and auxiliary rope 32 from being completely pulled out even when both are at their maximum extension. The telescopic rope loop 5 provides greater tensile strength support, better protecting the main rope 22 and auxiliary rope 32.

[0070] This utility model also provides a pet leash device, including the aforementioned rope retraction device 100, which improves the leash effect for pets.

[0071] Furthermore, the pet leash device may include a controller, and detection devices, such as position sensors and / or force sensors, may be installed on the main rope 22 and / or auxiliary rope 32. The controller is electrically connected to the detection devices and to the first actuator 6 and the second actuator 7. When the position sensor detects that the main rope 22 and / or auxiliary rope 32 are at their unwinding limit, the controller can control the first actuator 6 and the second actuator 7 to rotate in opposite directions according to the detection structure of the position sensor, so as to wind up the main rope 22 and auxiliary rope 32 and prevent the leash from being completely pulled out and damaged. And / or, when the force sensor detects that the tensile force on the main rope 22 and / or auxiliary rope 32 is too large or too small, the controller can control the rotation direction of the first actuator 6 and the second actuator 7 according to the detection structure of the force sensor, so as to wind up or unwind the main rope 22 and auxiliary rope 32 and prevent the leash from being subjected to excessive tensile force, which could lead to breakage. Moreover, the device can judge the pet's condition based on the detection results, and can better provide leash force and direction similar to human leash, resulting in better leash performance and thus improving the user experience.

[0072] 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 rope reeling device characterized by comprising: include: Base; The first winding module includes a first winding reel rotatably mounted on the base and a main rope wound on the first winding reel; The second winding module includes a second winding reel rotatably mounted on the base and an auxiliary rope wound on the second winding reel. Both the main rope and the auxiliary rope have winding ends that are wound out from the corresponding winding reel, and the winding ends of the auxiliary rope and the winding ends of the main rope are connected. An elastic element is disposed on at least one of the first winding module and the second winding module to provide an elastic winding force; Specifically, when the tension at the exit end of the auxiliary rope and the exit end of the main rope is greater than the winding force of the elastic element, the first winding reel and the second winding reel can be driven to rotate in the unwinding direction under the action of the main rope and the auxiliary rope; when the tension at the exit end of the auxiliary rope and the exit end of the main rope is less than the winding force of the elastic element, the first winding reel and the second winding reel can be driven to rotate in the winding direction under the action of the winding force of the elastic element.

2. The rope reeling device according to claim 1, wherein The stiffness of the auxiliary rope is greater than that of the main rope, and the elastic element is disposed on the second winding reel.

3. The rope reeling device according to claim 1, wherein The elastic element is configured as a coil spring, which is disposed on the second winding reel. When the second winding reel rotates in the unwinding direction, the coil spring is in a tightened and energy-storing state to generate a winding force. When the external force on the auxiliary rope is removed or is less than the winding force of the coil spring, the coil spring releases energy to drive the second winding reel to rotate in the winding direction.

4. A rope reeling device according to claim 3, wherein The base is provided with a first mounting hole, and the main rope has a fixed end opposite to its winding end; the first winding reel includes: The first winding base is rotatably disposed in the first mounting hole and has a winding groove protruding from one side along its axial direction. The winding groove protrudes from the first mounting hole and has a notch on one side. The fixed end of the main rope is sleeved in the winding groove, and the main rope can be wound out from the notch to be wound around the outer periphery of the winding groove. The first cover plate is connected to the base and covers the opening of the winding groove, allowing the first winding chassis to rotate relative to the first cover plate.

5. A rope reeling device according to claim 4, wherein The base is provided with a second mounting hole, and the auxiliary rope has a fixed end opposite to its winding end; the second winding reel includes: The second winding base is rotatably disposed in the second mounting hole and has a winding ring protruding from the second mounting hole. The outer periphery of the winding ring is provided with a groove extending circumferentially therethrough. At least a portion of the outer periphery of the second winding base abuts against the main rope. When the second winding base rotates, it can provide winding out or winding in power to the main rope. A pressure cap structure is provided on the end of the winding ring and connected to the base, so that the second winding base can rotate relative to the pressure cap structure; The coil spring is arranged in a disc shape, having a center end and a free end. The center end of the coil spring is fixed to the inner ring side of the winding loop, and the free end of the coil spring is fixed to the pressure cap structure.

6. A rope reeling device according to claim 5, wherein The pressure cap structure includes a second cover plate covering the end of the inner ring side of the winding ring, and a pressure plate connected to the second cover plate. The free end of the coil spring is fixed to the second cover plate. The pressure plate is connected to the base and forms an anti-rotation fit with the second cover plate.

7. A rope reeling device according to claim 6, wherein The inner ring side of the winding ring is provided with a first clamping part and a second clamping part that are arranged opposite to each other. The first clamping part and the second clamping part are arranged at a distance from each other along the radial direction of the winding ring. The first clamping part and the second clamping part are clamped and fixed on both sides of the center end of the coil spring.

8. The rope reeling apparatus according to claim 6, wherein The second winding chassis has a rotating part located within the second mounting hole; The second winding module further includes a first bearing and a second bearing, the first bearing being rotatably connected to the rotating part and the second mounting hole, and the second bearing being rotatably connected to the winding ring and the second cover plate.

9. The rope reeling apparatus according to claim 6, wherein The second cover plate and the pressure plate are provided with a limiting protrusion, and the other is provided with a limiting recess that cooperates with the limiting protrusion. The cross-section of the limiting protrusion and the cross-section of the limiting recess are both non-circular.

10. A pet stroller towing apparatus, characterized by, Includes the rope take-up and release device as described in any one of claims 1 to 9.

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