Intelligent anti-explosion pulling rope device

Abstract

The utility model discloses an intelligent anti-explosion pulling rope device which comprises a shell and a rotating disc. A handle is arranged on the shell, and an accommodating space is formed in the shell; the turntable is rotatably arranged in the accommodating space; a control circuit board, a brake lock catch, a torsion spring and a nickel-titanium wire are arranged in the shell; the brake lock catch is arranged beside the turntable in a back-and-forth swinging manner, and the torsional spring enables the brake lock catch to be far away from the turntable; the rotating speed and rule of the rotating disc are collected through the sensor, information is transmitted to the control circuit board, when the rotating speed reaches a set anti-explosion impact value, the nickel-titanium wire is powered on to deform and contract, the brake lock catch is pulled to conduct braking, the control circuit board enables the nickel-titanium wire to be powered off immediately after being powered on for a short time, and the nickel-titanium wire is cooled to recover deformation; and the brake lock catch restores to the original position again under the action of the torsion spring, the brake is stopped, the turntable can normally rotate again, the product is stable in brake, the anti-explosion impact value can be set as required, and the operation is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies, and in particular to an intelligent explosion-proof leash device. Background Technology

[0002] A pet leash, also known as a pet leash or dog leash, is a tool used to connect a pet (mainly a dog) to its owner for control and guidance during outdoor activities. The main structure of a pet leash includes a housing and a turntable; the housing has a handle, an internal storage space, and a leash outlet hole connecting to the storage space; the turntable is rotatably mounted within the storage space, and a leash is wound around the turntable, with the free end of the leash extending outward through the leash outlet hole.

[0003] Current retractable pet leash devices are all mechanically designed, relying primarily on the contraction characteristics of a coiled spring to retract the webbing and achieve traction. A fatal flaw of relying entirely on a mechanical coiled spring is the inability to retract the leash in emergencies, which can easily lead to accidents when the pet lunges forward. Newer anti-burst leash devices on the market rely on centrifugal force for braking, but this method is unstable, and different products cannot achieve standard anti-burst values, making operation inconvenient. Therefore, it is necessary to improve current retractable pet leash devices. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide an intelligent explosion-proof leash device, which can effectively solve the problems of unstable braking methods, inability of different products to achieve standard explosion-proof values, and inconvenient operation of existing pet telescopic leash devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An intelligent explosion-proof traction rope device includes a housing and a turntable. The housing has a handle, an internal storage space, and a rope outlet hole communicating with the storage space. The turntable is rotatably mounted within the storage space, and a rope is wound around it, with the free end of the rope extending outward through the rope outlet hole. The housing contains a control circuit board, a brake latch, a torsion spring, and a nickel-titanium wire. The brake latch is oscillatingly mounted beside the turntable. When the brake latch approaches the turntable, it engages and locks the turntable; when it moves away, the lock is released. The torsion spring causes the brake latch to move away from the turntable. One end of the nickel-titanium wire is fixed to the housing, and the other end is fixedly connected to the brake latch. The nickel-titanium wire is electrically connected to the control circuit board, and its extension and retraction cause the brake latch to move away from or towards the turntable.

[0007] Preferably, a Hall sensor is provided on the control circuit board, and correspondingly, a plurality of magnets for triggering the Hall sensor are arranged at intervals on the turntable.

[0008] Preferably, the control circuit board is provided with a display screen for displaying the explosion-proof threshold, and the display screen is exposed outside the housing.

[0009] Preferably, a threshold adjustment button is provided inside the housing, and the threshold adjustment button is electrically connected to the control circuit board.

[0010] Preferably, an LED light is provided inside the housing, the LED light is electrically connected to the control circuit board, and a convex lens is covered on the LED light, which is exposed outside the housing.

[0011] Preferably, a mechanical brake latch is provided inside the housing. The mechanical brake latch is located on the side of the turntable. The mechanical brake latch is pressable and a mechanical button is fixed on the mechanical brake latch, which protrudes outside the housing.

[0012] Preferably, the housing contains a rechargeable battery and a charging port, both of which are electrically connected to the control circuit board, and the charging port is exposed outside the housing.

[0013] Preferably, the housing includes two half-shells and a cover plate. The two half-shells are spliced ​​and fixed together to form the aforementioned receiving space. One half-shell has a recessed cavity, in which the control circuit board is disposed. The cover plate covers the opening of the cavity and is made of transparent PC material.

[0014] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0015] By using sensors to collect the rotational speed and pattern of the turntable, the information is transmitted to the control circuit board. When the rotational speed reaches the set explosion-proof threshold, the nickel-titanium wire is energized and deformed, thereby pulling the brake latch to brake. The control circuit board can shortly energize the nickel-titanium wire and then immediately de-energize it, allowing the wire to cool and recover its deformation. The brake latch returns to its original position under the action of the torsion spring, stopping the braking, and the turntable can rotate normally again. This product has stable braking, can set the explosion-proof threshold as needed, and is very convenient to operate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention;

[0017] Figure 2 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention from another angle;

[0018] Figure 3 This is a partial exploded view of a preferred embodiment of the present invention;

[0019] Figure 4 This is another partially exploded view of a preferred embodiment of the present invention;

[0020] Figure 5 yes Figure 4 Another perspective diagram.

[0021] Explanation of reference numerals in the attached diagram:

[0022] 10. Shell 11. Half-shell

[0023] 12. Cover plate 101. Handle

[0024] 102. Containment space; 103. Rope exit hole

[0025] 104, cavity 20, turntable

[0026] 21. Gears; 30. Control circuit board

[0027] 31. Hall sensor 32. Display screen

[0028] 41. Brake lock 42. Torsion spring

[0029] 43. Nickel-titanium wire 44. Magnet

[0030] 45. Threshold adjustment button 46. LED lighting

[0031] 47. Convex lens 48. Mechanical brake clip

[0032] 49. Mechanical buttons 51. Rechargeable battery

[0033] 52. Charging port Detailed Implementation

[0034] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a housing 10 and a turntable 20.

[0035] The housing 10 has a handle 101 and an internal receiving space 102. A rope outlet 103 communicating with the receiving space 102 is provided on the housing 10. The rope outlet 103 is attached to the housing 10 via a snap-fit ​​mechanism, allowing the rope to be disassembled and replaced as needed. Specifically, the housing 10 includes two half-shells 11 and a cover plate 12. The two half-shells 11 are joined and fixed together to form the aforementioned receiving space 102. One half-shell 11 has a recessed cavity 104, and the cover plate 12 seals the opening of the cavity 104. The cover plate 12 is made of transparent PC material.

[0036] The turntable 20 is rotatably disposed within the receiving space 102. A rope (not shown) is wound around the turntable 20, and the free end of the rope extends outward through the rope outlet hole 103. The turntable 20 has a gear 21.

[0037] The housing 10 contains a control circuit board 30, a brake latch 41, a torsion spring 42, and a nickel-titanium wire 43. The brake latch 41 is oscillatingly positioned on the side of the turntable 20. When the brake latch 41 approaches the turntable 20, it engages with the gear 21 of the turntable 20, locking the turntable 20. When the brake latch 41 moves away from the turntable 20, the lock is released. The torsion spring 42 causes the brake latch 41 to move away from the turntable 20. One end of the nickel-titanium wire 43 is fixed to the housing 10, and the other end is fixedly connected to the brake latch 41. The nickel-titanium wire 43 is electrically connected to the control circuit board 30. The extension and retraction of the nickel-titanium wire 43 causes the brake latch 41 to move away from or towards the turntable 20.

[0038] In this embodiment, the control circuit board 30 is disposed in the cavity 104. A Hall sensor 31 is mounted on the control circuit board 30, and correspondingly, a plurality of magnets 44 for triggering the Hall sensor 31 are spaced apart on the turntable 20. Furthermore, the control circuit board 30 is provided with a display screen 32 for displaying the explosion-proof threshold. The display screen 32 is exposed outside the housing 10; specifically, it is an LCD screen that displays the real-time rotation speed and the set explosion-proof threshold. The display screen 32 is a light-emitting screen hidden under a plastic sheet. Additionally, a threshold adjustment button 45 is disposed inside the housing 10. This threshold adjustment button 45 is electrically connected to the control circuit board 30 to adjust the threshold value.

[0039] Furthermore, an LED light 46 is provided inside the housing 10. The LED light 46 is electrically connected to the control circuit board 30, and a convex lens 47 is covered on the LED light 46. The convex lens 47 is exposed outside the housing 10 to provide lighting.

[0040] In addition, a mechanical brake latch 48 is provided inside the housing 10. The mechanical brake latch 48 is located on the side of the turntable 20. The mechanical brake latch 48 is pressable and a mechanical button 49 is fixed on the mechanical brake latch 48. The mechanical button 49 protrudes outside the housing 10 to quickly brake the turntable 20.

[0041] In addition, a rechargeable battery 51 and a charging port 52 are provided inside the housing 10. Both the rechargeable battery 51 and the charging port 52 are electrically connected to the control circuit board 30. The rechargeable battery 51 is used to supply power to the control circuit board 30. The charging port 52 is exposed outside the housing 10 so as to charge the rechargeable battery 51. The charging port 52 is a Type-C interface.

[0042] The usage method of this embodiment is described in detail below:

[0043] In use, the free end of the rope is connected to the collar around the pet's neck. When the pet moves away, the rope is pulled outward, and the turntable 20 rotates counterclockwise, tightening the coil spring (not shown in the figure) inside the turntable 20. When the turntable 20 rotates counterclockwise, the sensor is activated. When the turntable 20 rotates clockwise, the sensor is in sleep mode. The microcontroller on the control circuit board 30 has a sleep mode, which automatically shuts off when static, extending the battery life. When turntable 20 rotates counterclockwise, the magnet 44 fixed on turntable 20 also rotates. Hall sensor 31 detects the rotation speed of magnet 44. When the rotation speed of turntable 20 reaches the set value, the microcontroller on control circuit board 30 starts the braking program. NiTi wire 43 is energized and deforms, contracting to about 5mm, thus pulling the brake latch 41 close to turntable 20 to brake turntable 20 for a short-term braking effect. When the energized niTi wire 43 is de-energized, it cools down and naturally recovers its deformation. The brake latch 41 returns to its original position under the action of torsion spring 42, stopping the braking of turntable 20, and turntable 20 can rotate normally again. The explosion-proof value can be set by pressing mechanical button 49 according to display screen 32, and personalized settings can be made according to different pets to achieve electronically controlled intelligent explosion-proof. When the pet walks back, the rope retracts, and turntable 20 will rotate clockwise under the action of coil spring to automatically retract the rope.

[0044] The key design feature of this invention is that by using sensors to collect the rotational speed and pattern of the turntable, the information is transmitted to the control circuit board. When the rotational speed reaches the set explosion-proof threshold, the nickel-titanium wire is energized and deformed, thereby pulling the brake latch to apply braking. The control circuit board can shortly energize the nickel-titanium wire and then immediately de-energize it, allowing the wire to cool and recover its deformation. The brake latch, under the action of the torsion spring, returns to its original position, stopping the braking, and the turntable can rotate normally again. This product offers stable braking, can be set with the explosion-proof threshold as needed, and is very convenient to operate.

[0045] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. An intelligent explosion-proof traction rope device, comprising a housing and a turntable; the housing has a handle, an internal receiving space, and a rope outlet hole communicating with the receiving space; the turntable is rotatably disposed within the receiving space, a rope is wound on the turntable, and the free end of the rope extends outward through the rope outlet hole; characterized in that: The housing contains a control circuit board, a brake latch, a torsion spring, and a nickel-titanium wire. The brake latch is positioned to the side of the turntable and can swing back and forth. When the brake latch approaches the turntable, it engages with the turntable and locks it. When the brake latch moves away from the turntable, the turntable is released. The torsion spring causes the brake latch to move away from the turntable. One end of the nickel-titanium wire is fixed to the housing, and the other end is fixedly connected to the brake latch. The nickel-titanium wire is also electrically connected to the control circuit board. The extension and retraction of the nickel-titanium wire causes the brake latch to move away from or closer to the turntable.

2. The intelligent explosion-proof traction rope device as described in claim 1, characterized in that: The control circuit board is equipped with a Hall sensor, and correspondingly, the turntable is provided with multiple magnets at intervals to trigger the Hall sensor.

3. The intelligent explosion-proof traction rope device as described in claim 1 or 2, characterized in that: The control circuit board is equipped with a display screen for displaying the explosion-proof threshold, and the display screen is exposed outside the housing.

4. The intelligent explosion-proof traction rope device as described in claim 3, characterized in that: A threshold adjustment button is provided inside the housing, and the threshold adjustment button is electrically connected to the control circuit board.

5. The intelligent explosion-proof traction rope device as described in claim 1, characterized in that: An LED light is installed inside the housing. The LED light is electrically connected to the control circuit board, and a convex lens is installed on the LED light, which is exposed outside the housing.

6. The intelligent explosion-proof traction rope device as described in claim 1, characterized in that: The housing is equipped with a mechanical brake latch located on the side of the turntable. The mechanical brake latch is pressable and has a mechanical button fixed on it, which protrudes from the housing.

7. The intelligent explosion-proof traction rope device as described in claim 1, characterized in that: The housing contains a rechargeable battery and a charging port, both of which are electrically connected to the control circuit board. The charging port is exposed outside the housing.

8. The intelligent explosion-proof traction rope device as described in claim 1, characterized in that: The housing includes two half-shells and a cover plate. The two half-shells are spliced ​​together and fixed to form the aforementioned receiving space. One half-shell has a recessed cavity, in which the control circuit board is disposed. The cover plate seals the opening of the cavity and is made of transparent PC material.

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