Pet leash capable of preventing burst

Abstract

The invention discloses an anti-burst pet leash which comprises a main body holding part and a traction part which can be separated, the main body holding part comprises a traction rope, an automatic winder, a main control unit, a clamping part and a battery pack, one end of the traction rope is wound in the automatic winder, and the other end of the traction rope penetrates through the main body holding part to be connected with the traction part; the clamping part is located on the outer side of the automatic winder, a plurality of abutting parts are arranged on the outer ring of the automatic winder, the clamping part comprises a driving motor and a rotating part, the main control unit is connected to the driving motor and the battery pack, the main control unit obtains the moving speed of the traction part away from the main body holding part, and when the moving speed exceeds a preset speed, the main body holding part is driven to rotate. The driving motor obtains the electric quantity of the battery pack and drives the rotating part to rotate, the rotating part abuts against the abutting part, the rotating part can limit further rotation of the automatic winder, the pulling rope is prevented from being stretched infinitely, control by a user is not needed, autonomous control over the pet rope pulling device is achieved, and use convenience is improved.

Description

Technical Field

[0001] The invention relates to the field of pet products, in particular to an explosion-proof pet leash. Background Art

[0002] At present, keeping pets has gradually become a common phenomenon in people's daily lives, especially in some big cities, the proportion of families keeping pets is gradually increasing. In the daily activities of pets going out, pet leashes are needed to limit the pets' activity space, so many kinds of pet leashes have appeared on the market.

[0003] There are mainly two types of pet leashes on the market. One is a pet leash with a fixed length. This type of pet leash has a simple structure and is inexpensive. It usually only requires a sturdy rope with one end held in the user's hand and the other end tied to the pet. However, due to the fixed length of the leash, the activities of the user and the pet will be restricted. In particular, it is easy for the user to be led by the pet, causing inconvenience in use.

[0004] Another type of pet leash has an adjustable leash length, but it also has certain disadvantages. In particular, when the pet rushes out of control, the user needs to react immediately to prevent the leash from being suddenly lengthened by the pet due to untimely control. This requires the user to keep a close eye on the pet's movement status at all times while out, which causes certain inconveniences for the user. Summary of the invention

[0005] In view of the above problems and technical requirements, the inventors have proposed a pet leash that can achieve explosion-proof performance. The technical solution of the present invention is as follows:

[0006] A pet leash device that can achieve explosion-proof shock, comprising a detachable main body grip and a traction part, the traction part being mounted on the pet, the main body grip comprising a traction rope, an automatic reel, a main control unit, a clamping component and a battery pack, one end of the traction rope being reeled in the automatic reel, and the other end passing through the main body grip and connected to the traction part, the clamping component being located on the outside of the automatic reel, a plurality of abutment parts being arranged on the outer ring of the automatic reel, the clamping component comprising a driving motor and a rotating part, the main control unit being respectively connected to the driving motor and the battery pack, the main control unit obtaining a moving speed of the traction part away from the main body grip, and when the moving speed exceeds a preset speed, the driving motor obtains the power of the battery pack and drives the rotating part to rotate, and the rotating part abuts against the abutment part.

[0007] Its further technical solution is that each of the abutment parts includes an abutment surface and an abutment buckle, and there is a movable distance between each of the abutment surface and the corresponding abutment buckle. When the moving speed exceeds the preset speed, the rotating part moves within the movable distance, and the rotating part abuts against the abutment surface, and under the traction of the automatic reel, the rotating part is then engaged with the abutment buckle.

[0008] A further technical solution is that the rotating part includes a sloped stopper and a hook part. When the moving speed exceeds a preset speed, the rotating part is located in the movable distance, the sloped stopper is close to the abutting surface, and the hook part is close to the abutting buckle.

[0009] A further technical solution is that a plurality of protrusions are evenly distributed on the outer ring of the automatic winder, and one side of each protrusion serves as the abutment surface and the other side serves as the abutment buckle.

[0010] Its further technical solution is that the main body holding part also includes an upper shell, a lower shell, a generator motor and a gear set, the automatic winder is rotatably mounted on the lower shell, the generator motor is fixedly mounted on the lower surface of the upper shell, an inner gear ring is arranged on the outer ring of the automatic winder, a cavity area is arranged in the middle of the automatic winder, the generator motor is located in the cavity area, and the outer surface of the generator motor is spaced from the inner surface of the cavity area, and the inner gear ring is meshed with the rotating end of the generator motor through the gear set.

[0011] Its further technical solution is that the generator motor includes an upper fixed plate, the upper fixed plate is fixed to the upper shell, the gear set is located between the upper fixed plate and the upper shell, the gear set includes a sun gear and a planetary gear, the sun gear serves as the rotating end of the generator motor, the two ends of the rotating shaft of the planetary gear are rotatably installed with the upper fixed plate and the upper shell, and the inner ring gear is meshed with the sun gear through the planetary gear.

[0012] A further technical solution is that the number of the planetary gears is three, and screws are arranged between every two planetary gears to fix the upper fixing plate and the upper shell.

[0013] Its further technical solution is that the automatic winder includes a winding spring, a winding disc and a motor mounting cover, the winding spring is located in the cavity area of ​​the winding disc, the winding disc is mounted on the lower shell through the winding spring, the upper end surface of the winding disc is higher than the upper end surface of the winding spring, the upper end surface of the motor mounting cover is mounted on the upper end surface of the winding disc, the sunken area of ​​the motor mounting cover is located on the upper end surface of the winding spring, and the sunken area serves as the cavity area, and the motor mounting cover separates the winding spring and the generator motor.

[0014] A further technical solution is that the rotating end of the driving motor is parallel to the rotating axis of the automatic rewinder, and the rotating end of the driving motor is perpendicular to the rotating plane of the rotating member.

[0015] The present invention proposes a pet leash that is explosion-proof. The application obtains the power of a battery pack and drives a rotating part to rotate through a driving motor. The rotating part abuts against an abutment portion. The rotating part can limit further rotation of an automatic reel to prevent the traction rope from being infinitely stretched. No user control is required, thereby achieving autonomous control of the pet leash and improving ease of use. When the traction portion moves, the traction rope drives the rotating end of the generator motor to rotate through the automatic reel, thereby achieving the effect of power generation. The power generated by the generator motor can be stored in the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a fixed schematic diagram of the pet leash device applied for by the present invention.

[0017] Figure 2 It is a schematic diagram of a separated pet leash according to the present invention.

[0018] Figure 3 It is a schematic diagram of the internal structure of the main body gripping part of the present invention.

[0019] Figure 4 It is a rear view schematic diagram of the internal structure of the main body gripping part of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the rotating member and the abutment portion of the present invention.

[0021] Figure 6 It is a schematic diagram of an exploded structure of the pet leash applied for by the present invention.

[0022] Figure 7 It is another exploded structural schematic diagram of the pet leash applied for by the present invention.

[0023] Figure 8 It is a schematic diagram of the exploded structure of the automatic reel applied for by the present invention. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] like Figure 1 and 2 As shown, a pet leash device for realizing explosion-proof shock includes a detachable main body gripping portion 1 and a traction portion 2. The pet leash device includes a main body gripping portion 1 and a traction portion 2. The main body gripping portion 1 is used for the user to hold. In order to facilitate holding, as shown in FIG. Figure 1 As shown in FIG. 1 , a gripping opening is provided at the rear of the main gripping portion 1 , through which the user can hold the device. Figure 2 As shown in the figure, the main gripping part 1 and the traction part 2 are separated. At this time, the pet is being pulled while going out. The traction part 2 is bound to the pet, for example, it can be bound to the pet's neck or body. The main gripping part 1 and the traction part 2 are connected by a traction rope 3. When the pet pulling activity is over, the traction part 2 can be re-combined with the main gripping part 1 along the trajectory of the traction rope.

[0026] like Figure 3 As shown, the main grip 1 includes a traction rope 3, an automatic reel 4 and a main control unit 5. One end of the traction rope 3 is reeled in the automatic reel 4, and the other end passes through the main grip 1 and is connected to the traction part 2. The automatic reel 4 is a device that can automatically reel the traction rope into the inside of the main grip. Usually, a coil spring is arranged inside the automatic reel. The coil spring itself has elastic force. When the user needs to stretch the traction part outward, the elastic force of the coil spring is overcome to stretch it. When the outdoor traction activity is ended, the automatic reel has no external force restriction and can automatically retract the traction rope 3 into the internal space. Usually, a bearing can be installed at the rotation position of the automatic reel. The bearing can further increase the winding speed of the automatic reel.

[0027] Furthermore, the rotating end of the driving motor 6 is parallel to the rotating axis of the automatic retractor 4, and the rotating end of the driving motor 6 is perpendicular to the rotating plane of the rotating member 7, thereby achieving surface contact between the rotating member and the abutting member and increasing the force-bearing surface.

[0028] The main control unit 5 is the control electronic device of the pet leash of the present application, which is equivalent to the brain control end of the entire structure. In the present application, the main control unit 5 is a circuit board structure with a control chip. The control chip can calculate and send corresponding signal instructions according to external signal indications. Of course, the main control unit can also be in the form of other electronic devices, as long as the control function is realized, and the present application will not go into details here.

[0029] like Figure 4As shown, the main body holding part 1 also includes a snap-on component and a battery pack. The battery pack can be placed in the internal space of the main body holding part. The battery pack is used to power the entire internal electronic devices. The snap-on component is located on the outside of the automatic reel 4. Before the snap-on component is not working, there is no contact between the snap-on component and the automatic reel. In the present application, the snap-on component is located at the top of the automatic reel 4. The snap-on component includes a drive motor 6 and a rotating part 7. Correspondingly, a plurality of abutment parts 8 are provided on the outer ring of the automatic reel. The main control unit 5 is respectively connected to the drive motor and the battery pack. The drive motor 6 and the battery pack can be controlled by the main control unit 5. When the drive motor 6 is required to work, the main control unit can control the battery pack to supply power to the drive motor 6.

[0030] Furthermore, the main control unit 5 obtains the moving speed of the traction part 2 away from the main holding part 1. When the moving speed exceeds the preset speed, it can be confirmed that the pet's moving speed is too fast, resulting in a burst phenomenon. Since the traction rope can be stretched continuously, if the pet leash is not controlled at this time, the user will be led by the pet and may even fall in severe cases. The present application obtains the power of the battery pack through the driving motor 6 and drives the rotating part 7 to rotate. The rotating part 7 abuts against the abutment part 8. The rotating part 7 can limit the further rotation of the automatic reel 4 to prevent the traction rope from being infinitely stretched. No user control is required, thereby realizing autonomous control of the pet leash and improving ease of use.

[0031] It should be noted that the preset speed can be set according to user habits, usually in the range of 0.5m / s to 1m / s. The initial preset of the pet leash is 0.8m / s. The main control unit 5 can obtain the moving speed by obtaining the automatic reel or the traction rope. Furthermore, the present application can also obtain the moving speed by installing a motor on the automatic reel. In the actual data processing of the main control unit, the moving speed is converted into current size information for processing. The main control unit can further improve the processing speed through current.

[0032] It should also be noted that after the rotating member 7 abuts against the abutment portion 8, on the one hand, it can be automatically unlocked after a period of time, and on the other hand, the user can unlock it by himself, for example, an unlocking button can be set, and the user can be more proactive.

[0033] like Figure 5As shown, each abutment portion includes an abutment surface 9 and an abutment buckle 10, and a movable distance 11 is spaced between each abutment surface 9 and the corresponding abutment buckle 10. When the moving speed exceeds the preset speed, the rotating member will abut against the abutment portion. Specifically, the rotating member 7 will first enter the movable distance to move, and the rotating portion will abut against the abutment surface 9. At this time, the automatic reel is restricted and can no longer rotate in the positive direction. The positive direction rotation is the direction in which the traction portion 2 moves away from the main body gripping portion 1. The automatic reel 4 will be subjected to the elastic force of the coil spring and rotate in the reverse direction. Under the traction of the device 4, the rotating part 7 is then clamped with the abutment buckle 10. The present application uses the abutment surface and the abutment buckle as the limiting structures of the two end points respectively. The limiting effect of the abutment surface is weaker than that of the abutment buckle. This is because the impact force of the pet's explosion is too large, and a certain buffer margin is given. Even if the first abutment surface fails to prevent the explosion, there will be a second abutment surface for limitation, and there will be no structural damage due to excessive limitation. The abutment buckle corresponds to the limiting effect of the automatic reel, and the impact force will not be too large. The use of the abutment buckle can avoid the situation where the limitation is not in place.

[0034] Furthermore, the rotating part includes a bevel stopper 12 and a hook portion 13. When the moving speed exceeds a preset speed, the rotating part 7 is located in a movable distance, the bevel stopper 12 is close to the abutment surface 9, and the hook portion 13 is close to the abutment buckle 10. The bevel stopper and the hook portion can better abut against the abutment surface and the abutment buckle.

[0035] In order to facilitate the identification of the various components of the abutment portion, a plurality of raised portions 14 are evenly distributed on the outer ring of the automatic winder, and one side of each raised portion 14 serves as an abutment surface 9 and the other side serves as an abutment buckle 10, thereby making it easier to manufacture components and reducing manufacturing costs.

[0036] like Figure 6 and 7 As shown, the pet leash of the present application also has the function of generating electricity, through which the use of external power supply equipment can be avoided as much as possible. The main gripping part 1 also includes an upper shell 15, a lower shell 16, a generator motor 17 and a gear set. The automatic reel 4 is rotatably mounted on the lower shell 16, and the generator motor 17 is fixedly mounted on the lower surface of the upper shell 15. The entire power generation component is divided into two half-areas through the upper and lower shells. The upper half is mainly a structure where the generator motor needs to be fixed, and the lower half is a structure such as the automatic reel that needs to be rotated. The upper and lower half areas are divided into respective functions and are connected by gear meshing.

[0037] An inner gear ring 18 is provided on the outer ring of the automatic reel 4, and a cavity area 19 is provided in the middle of the automatic reel. The generator motor 17 is located in the cavity area 19, and the outer surface of the generator motor 17 is spaced from the inner surface of the cavity area 19. The inner gear ring 18 is meshed with the rotating end of the generator motor 17 through a gear set. When the traction part 2 moves, the traction rope 3 drives the rotating end of the generator motor to rotate through the automatic reel 4, thereby achieving the effect of power generation. The electricity generated by the generator motor can be stored by a battery pack.

[0038] The present application embeds the generator motor into the automatic winder, which can better utilize the internal space of the main body gripping part, thereby saving the space inside the main body gripping part 1, and the rotating end of the generator motor can be used to generate electricity by using the inner gear ring 18.

[0039] A common motor includes a stator and a rotor. When the motor is used as a generator, it is necessary to drive the stator and the rotor to generate a speed difference. A simple way is to fix the stator and rotate the rotor, or to rotate the stator and fix the rotor. The rotating end of the present application can be a stator or a rotor. It is sufficient to ensure that the stator and the rotor rotate relative to each other. When the automatic winder 4 rotates, the rotating end of the generator is driven to rotate to achieve the effect of power generation.

[0040] Furthermore, the amount of electricity that can be generated by rotating the rotating end of the generator motor in equal proportion is limited. In order to further increase the power generation, the present application uses planetary gears to increase the speed ratio of the gears, thereby increasing the power generation. Specifically:

[0041] The generator motor includes an upper fixed plate 20, which is fixed to the upper shell 15. The gear set is located between the upper fixed plate 20 and the upper shell 15. The gear set includes a sun gear 21 and a planetary gear 22. The sun gear 21 serves as the rotating end of the generator motor. The two ends of the rotating shaft 23 of the planetary gear 22 are rotatably installed with the upper fixed plate 20 and the upper shell 15 respectively. It should be noted that the planetary gear 22 rotates at a fixed position and does not rotate around the inner gear ring 18, thereby avoiding the problem of excessive noise in the overall rotation and simplifying the overall structure. The inner gear ring 18 is meshed with the sun gear 21 through the planetary gear 22. The rotation speed of the rotating end of the generator motor is further increased by the planetary gear, thereby increasing the power generation. The present application reasonably utilizes the internal space of the automatic winder, while retaining the function of the automatic winder itself, realizing the external output rotation effect, and no additional space structure is required. In the present application, the number of planetary gears is three, and a screw 25 is provided between every two planetary gears to fix the upper fixed plate 20 to the upper shell 15, thereby achieving the fixing effect of three angles.

[0042] like Figure 8As shown, the automatic winder 4 includes a coil spring 26, a winding disk 27 and a motor mounting cover 28. The coil spring 26 is located in the middle cavity structure of the winding disk 27. The winding disk 27 is mounted on the lower shell 16 through the coil spring 26. The upper end surface of the winding disk 27 is higher than the upper end surface of the coil spring 26. The upper end surface of the motor mounting cover 28 is mounted on the winding disk 27. The recessed area of ​​the motor mounting cover 28 is located on the upper end surface of the coil spring 26, and the recessed area serves as a cavity area. The motor mounting cover 28 separates the coil spring 26 and the generator motor 17. The motor mounting cover can limit the vertical movement of the coil spring 26 and facilitate maintenance and replacement.

[0043] The above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A pet leash device that can achieve explosion-proof function, characterized in that: It includes a detachable main body holding part and a traction part, the traction part is mounted on the pet, the main body holding part includes a traction rope, an automatic reel, a main control unit, a clamping component and a battery pack, one end of the traction rope is reeled in the automatic reel, and the other end passes through the main body holding part and is connected to the traction part, the clamping component is located on the outside of the automatic reel, and a plurality of abutment parts are arranged on the outer ring of the automatic reel, the clamping component includes a driving motor and a rotating part, the main control unit is respectively connected to the driving motor and the battery pack, the main control unit obtains the moving speed of the traction part away from the main body holding part, when the moving speed exceeds the preset speed, the driving motor obtains the power of the battery pack and drives the rotating part to rotate, and the rotating part abuts against the abutment part.

2. The explosion-proof pet leash according to claim 1, characterized in that: Each of the abutment parts includes an abutment surface and an abutment buckle, and a movable distance is spaced between each of the abutment surface and the corresponding abutment buckle. When the moving speed exceeds the preset speed, the rotating part moves within the movable distance, and the rotating part abuts against the abutment surface. Under the traction of the automatic reel, the rotating part is then engaged with the abutment buckle.

3. The explosion-proof pet leash according to claim 2, characterized in that: The rotating part includes a sloped stopper and a hook. When the moving speed exceeds the preset speed, the rotating part is located in the movable distance, the sloped stopper is close to the abutting surface, and the hook is close to the abutting buckle.

4. The explosion-proof pet leash according to claim 2, characterized in that: A plurality of protrusions are evenly distributed on the outer ring of the automatic retractor, and one side of each protrusion serves as the abutting surface and the other side serves as the abutting buckle.

5. The explosion-proof pet leash according to claim 1, characterized in that: The main body holding part also includes an upper shell, a lower shell, a generator motor and a gear set. The automatic winder is rotatably mounted on the lower shell, and the generator motor is fixedly mounted on the lower surface of the upper shell. An inner gear ring is arranged on the outer ring of the automatic winder, and a cavity area is arranged in the middle of the automatic winder. The generator motor is located in the cavity area, and the outer surface of the generator motor is spaced from the inner surface of the cavity area, and the inner gear ring is meshed with the rotating end of the generator motor through the gear set.

6. The explosion-proof pet leash according to claim 5, characterized in that: The generator motor includes an upper fixed plate, which is fixed to the upper shell, and the gear set is located between the upper fixed plate and the upper shell. The gear set includes a sun gear and a planetary gear. The sun gear serves as the rotating end of the generator motor, and both ends of the rotating shaft of the planetary gear are rotatably installed on the upper fixed plate and the upper shell respectively, and the inner ring gear is meshed with the sun gear through the planetary gear.

7. The explosion-proof pet leash according to claim 6, characterized in that: The number of the planetary gears is three, and a screw is arranged between every two of the planetary gears to fix the upper fixing plate to the upper shell.

8. The explosion-proof pet leash according to claim 5, characterized in that: The automatic winder includes a coil spring, a winding disk and a motor mounting cover, the coil spring is located in the cavity area of ​​the winding disk, the winding disk is mounted on the lower shell through the coil spring, the upper end surface of the winding disk is higher than the upper end surface of the coil spring, the upper end surface of the motor mounting cover is mounted on the upper end surface of the winding disk, the recessed area of ​​the motor mounting cover is located on the upper end surface of the coil spring, and the recessed area serves as the cavity area, and the motor mounting cover separates the coil spring and the generator motor.

9. A pet leash for preventing explosion according to any one of claims 1 to 8, characterized in that: The rotating end of the driving motor is parallel to the rotating axis of the automatic rewinder, and the rotating end of the driving motor is perpendicular to the rotating plane of the rotating member.

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