A hand-held portable electronic handbrake release device

Abstract

The utility model provides a kind of hand-held portable electronic hand brake unlocking equipment, belong to automobile maintenance equipment technical field, it solves the technical problems such as the lack of convenient current direction switching structure of existing hand brake unlocking equipment, cannot satisfy the demand of efficient handling fault vehicle. Including handle, connecting wire, counterweight type battery pack, take-up assembly and extension line, handle inside is equipped with mounting cavity, mounting cavity inside is equipped with switch, trigger, controller and swivel joint, the operating part of switch and trigger is set out handle, counterweight type battery pack, switch and trigger are electrically connected with controller, connecting wire is electrically connected with switch by swivel joint. The utility model can be through flexible current switching, reliable protection storage and stable power supply guarantee, fast and efficient processing electronic hand brake lock problem, substantially reduce production line stop line length, reduce manpower cost and safety risk, satisfy the urgent demand of fault handling in vehicle production process.

Description

Technical Field

[0001] This utility model belongs to the field of automotive repair equipment technology, and relates to a handheld portable electronic handbrake unlocking device. Background Technology

[0002] During vehicle production, issues such as failed program rewriting often lead to electronic handbrake lock-up and wheel lock-up, requiring the vehicle to be removed from the production line for repair and correction. Traditional methods have significant drawbacks: using jacks requires multiple people working together, is time-consuming, and can easily cause damage to the vehicle and injuries to personnel; some factories use vehicle movers that are labor-intensive to operate, require a high degree of road surface flatness, and pose safety hazards when fixed to the vehicle; forklifts and other equipment are expensive. These problems cause frequent production line downtime, significantly increasing the average monthly downtime, severely impacting vehicle delivery and causing economic losses. Furthermore, existing tools lack convenient current direction switching mechanisms, making it difficult to quickly unlock or lock the handbrake; the connecting cables are messy and prone to wear and tear; and the single power supply method is prone to interruption due to insufficient power, failing to meet the production needs for efficiently handling faulty vehicles.

[0003] Therefore, we propose a handheld portable electronic parking brake unlocking device that can quickly and efficiently handle electronic parking brake lock-up problems through flexible current switching, reliable protection and storage, and stable power supply. This significantly reduces production line downtime, lowers labor costs and safety risks, and meets the urgent needs for troubleshooting during vehicle production. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a handheld portable electronic parking brake unlocking device. The technical problem to be solved by this utility model is: how to enable the parking brake unlocking device to quickly and efficiently handle the problem of electronic parking brake locking through flexible current switching, reliable protection and storage, and stable power supply, thereby significantly reducing production line downtime, reducing labor costs and safety risks, and meeting the urgent needs of fault handling in vehicle production.

[0005] The objective of this utility model can be achieved through the following technical solutions: A handheld portable electronic handbrake unlocking device includes a handle, a connecting cable, a counterweight battery pack, a cable retraction assembly, and an extension cable. The counterweight battery pack is a square platform and is detachably mounted on the lower end of the handle. The cable retraction assembly is located on one side of the upper end of the handle, and the connecting cable is wound around the cable retraction assembly. The extension cable is located inside the cable retraction assembly. The handle has an internal mounting cavity containing a switch, a trigger, a controller, and a rotary joint. The operating parts of the switch and the trigger extend out of the handle. The counterweight battery pack, the switch, and the trigger are all electrically connected to the controller. One end of the connecting cable is electrically connected to the switch via the rotary joint.

[0006] The working principle of this utility model is as follows: A counterweight battery pack detachably installed at the lower end of the handle powers the device. The counterweight battery pack is replaceable and rechargeable. When the trigger is operated, the trigger transmits a signal to the controller. After receiving the signal, the controller, in conjunction with the state of the switch, controls the current output through the electrical connection. The current is transmitted to the connecting wire through the rotary joint via the switch. The direction of the current can be controlled by the state of the switch, thereby controlling the forward and reverse rotation of the handbrake motor to unlock or lock the electronic handbrake. The cable retractor is used to organize the connecting wire. The extension cable can be plugged into the connecting wire. When it is necessary to operate the handbrake motor in a concealed location or where connection is inconvenient, the extension cable can be inserted into the handbrake motor to complete the operation. Then, the extension cable and the connecting wire can be separated for other operations. When it is necessary to operate again, the extension cable and the connecting wire can be reconnected, avoiding multiple connections to the handbrake motor and thus reducing workload.

[0007] The cable take-up assembly includes a bracket, an elastic take-up reel, and a cable management frame. The bracket is fixed to one side of the upper end of the handle. The elastic take-up reel is rotatably mounted on the bracket. One end of the cable management frame is fixed to the bracket, and the other end of the cable management frame is located on one side of the elastic take-up reel and has a cable management opening. Several circumferentially distributed rollers are rotatably mounted on the side of the cable management opening. One end of the connecting wire passes through the rotation axis of the elastic take-up reel and is electrically connected to the rotary joint. The other end of the connecting wire passes through the inside of the cable management opening and is located between the rollers.

[0008] With the above structure, the bracket fixed to one side of the upper end of the handle provides support for the entire assembly. The elastic reel mounted on the bracket can be rotated to reel in and out the connecting cable. When the connecting cable is needed, pull the connecting cable outward, and the elastic reel will rotate to release the connecting cable. When not in use, pull the connecting cable and release it, and the elastic reel will rotate in the opposite direction to retract the connecting cable under its own elastic force. The cable organizer is used to organize the connecting cable. The other end of the connecting cable passes through the inside of the cable organizer and is located between several circumferentially distributed rotating rollers on the side of the cable organizer. The rollers can reduce friction during the cable reeling and unloading process, making the cable reeling and unloading smoother and achieving orderly organization of the connecting cable.

[0009] The connector is fitted with a protective shell on the end of the connector that is away from the rotary joint. A closable magnetic protective cover is hinged to the opening of the protective shell. A magnetic metal block is provided on the protective shell at the position corresponding to the magnetic protective cover. The protective shell is located on the side of the roller away from the elastic take-up reel, and a foam block is fixed on the end of the protective shell that is close to the roller.

[0010] With the above structure, a protective shell is fitted over the connector end of the connecting cable away from the rotary joint to protect the interface at that end. The opening of the protective shell is equipped with a closable magnetic protective cover, which can be closed when not in use to further protect the interface and prevent dust, debris, or accidental damage from entering. The protective shell is located on the side of the roller away from the elastic take-up reel, and a foam block is fixed at the end of the protective shell closest to the roller. During the retraction of the connecting cable, when the protective shell moves close to the roller with the connecting cable, the foam block buffers the collision between the protective shell and the roller, reducing wear and impact when they come into contact, thus providing protection. Furthermore, during the retraction of the connecting cable, the foam block pushes the protective shell to move along the connecting cable, retracting the end of the connecting cable into the protective shell.

[0011] The elastic take-up reel has a storage cavity, a metal sheet is fixed on the side wall of the storage cavity, a winding post is fixed at the center of the storage cavity, a through fixing groove is opened on the winding post, magnets are fixed at both ends of the extension line, the extension line is wound on the winding post, one end of the extension line is located inside the fixing groove, and the other end is attracted to the metal sheet by the magnet. A storage cover is provided at the opening of the storage cavity.

[0012] With the above structure, the storage cavity is used to store the extension cord. A winding post is fixed at the center of the storage cavity, and the extension cord is wound around the winding post. A through-hole fixing groove on the winding post can fix one end of the extension cord to prevent it from loosening during storage. A metal sheet is fixed on the side wall of the storage cavity, and magnets are fixed at both ends of the extension cord. The other end of the extension cord is attracted to the metal sheet by the magnet, realizing the stable winding and storage of the extension cord on the winding post. The storage cavity has a storage cover that can be closed after the extension cord is stored to prevent the extension cord from falling out of the storage cavity or getting dusty, ensuring that the extension cord is neatly stored and effectively protected.

[0013] The storage cover has a handle at the end away from the elastic take-up reel. A magnet is fixed on the winding post, and an iron plate is fixed on the storage cover. The position of the iron plate corresponds to that of the magnet.

[0014] With the above structure, the storage cover is equipped with a handle for easy gripping to open and close. The magnetic piece fixed on the winding post corresponds to the iron piece fixed on the storage cover. When the storage cover is closed, the magnetic piece will attract the iron piece, thus firmly fixing the storage cover at the opening of the storage cavity, preventing the extension cord from coming out due to accidental opening of the storage cover. At the same time, the design of the handle not only ensures the stability of the storage cover after it is closed, but also makes it convenient for users to quickly open and retrieve the extension cord as needed.

[0015] The upper end of the grip has an internal thread opening on the side away from the cable take-up assembly. A screw cap is provided at the internal thread opening, and the screw cap is screwed into the internal thread opening. A cigarette lighter connector is provided inside the mounting cavity, and the cigarette lighter connector is electrically connected to the controller through a wire.

[0016] With the above structure, the upper end of the handle is equipped with a screw cap, which can be opened and closed by screwing on the internal thread. The cigarette lighter connector inside the mounting cavity is electrically connected to the controller via a wire. When it is necessary to use the cigarette lighter interface for power supply or to charge the counterweight battery pack, the cigarette lighter connector can be taken out and connected by unscrewing the screw cap. After use, the cigarette lighter connector can be put back into the mounting cavity and the screw cap can be tightened to store and protect it, preventing the cigarette lighter connector from getting dusty or damaged.

[0017] The switching switch is a three-position push-button reversing switch.

[0018] With the above structure, when the switch is operated in different directions, the direction of the output current can be changed, corresponding to two opposite currents. This, in conjunction with the signals from the controller and the trigger, controls the handbrake motor to rotate forward and backward, thereby realizing the unlocking or locking function of the electronic handbrake. When the switch is in the middle position, the switch remains open.

[0019] Compared with existing technologies, this handheld portable electronic parking brake unlocking device has the following advantages: 1. By using the connecting wire, switch, trigger, controller and extension wire together, the current direction can be quickly switched to control the handbrake motor to unlock or lock. The trigger and controller work together to respond sensitively. The extension wire can be plugged into the connecting wire to easily handle the operation of the handbrake motor in a hidden position, reduce the amount of repetitive connection work, and the overall operation process is simple, which greatly improves the efficiency of fault handling.

[0020] 2. Through the cooperation of the protective shell, magnetic protective cover, foam block and take-up assembly, the elastic take-up reel automatically takes up and puts in the connecting cable. The roller of the cable frame reduces friction and avoids cable wear. The protective shell, magnetic protective cover and foam block at the end of the connecting cable protect the end of the connecting cable, protect important components in all aspects and extend the service life of the equipment.

[0021] 3. By using a counterweight battery pack in conjunction with a cigarette lighter connector, the detachable and rechargeable counterweight battery pack can provide continuous power to meet the needs of long-term operation; the cigarette lighter connector can be connected to an external power source or to charge the counterweight battery pack, expanding the power supply options, avoiding operation interruptions due to power issues, and ensuring continuous operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the internal structure of the grip in this utility model.

[0024] Figure 3 This is a schematic diagram of the wire take-up assembly in this utility model.

[0025] Figure 4 This is an exploded structural diagram of the connecting line in this utility model.

[0026] Figure 5 This is an exploded structural diagram of some components in the take-up assembly of this utility model.

[0027] In the diagram: 1. Handle; 2. Connecting cable; 3. Counterweight battery pack; 4. Mounting cavity; 5. Switch; 6. Trigger; 7. Controller; 8. Cable reel assembly; 9. Rotary connector; 10. Extension cable; 11. Bracket; 12. Elastic cable reel; 13. Cable management rack; 14. Cable management port; 15. Roller; 16. Protective shell; 17. Magnetic protective cover; 18. Foam block; 19. Storage cavity; 20. Winding post; 21. Fixing groove; 22. Magnet; 23. Metal sheet; 24. Storage cover; 25. Handle; 26. Magnet; 27. Screw cap; 28. Cigarette lighter connector. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] like Figures 1-5 As shown, this handheld portable electronic handbrake unlocking device includes a handle 1, a connecting cable 2, a counterweight battery pack 3, a cable retraction assembly 8, and an extension cable 10. The counterweight battery pack 3 is a square platform and is detachably mounted on the lower end of the handle 1. The cable retraction assembly 8 is located on one side of the upper end of the handle 1. The connecting cable 2 is wound around the cable retraction assembly 8. The extension cable 10 is located inside the cable retraction assembly 8. The handle 1 has an internal mounting cavity 4, which contains a switch 5, a trigger 6, a controller 7, and a rotary joint 9. The operating parts of the switch 5 and the trigger 6 extend out of the handle 1. The counterweight battery pack 3, the switch 5, and the trigger 6 are all electrically connected to the controller 7. One end of the connecting cable 2 is electrically connected to the switch 5 via the rotary joint 9.

[0030] In this embodiment, a counterweight battery pack 3, detachably mounted at the lower end of the handle 1, powers the device. The counterweight battery pack 3 is replaceable, rechargeable, and serves as a base to ensure the device is placed upright. When the trigger 6 is operated, the trigger 6 transmits a signal to the controller 7. After receiving the signal, the controller 7, in conjunction with the state of the switch 5, controls the current output through electrical connection. The current is transmitted to the connecting line 2 via the rotary joint 9 after passing through the switch 5. The direction of the current can be controlled by the state of the switch 5, thereby controlling the forward and reverse rotation of the handbrake motor to unlock or lock the electronic handbrake. The cable retractor 8 is used to organize the connecting line 2. The extension line 10 can be plugged into the connecting line 2. When it is necessary to operate the handbrake motor, which is in a concealed location or inconvenient to connect, the extension line 10 can be used to insert into the handbrake motor to complete the operation. Then, the extension line 10 and the connecting line 2 can be separated for other operations. When it is necessary to operate again, the extension line 10 and the connecting line 2 can be reconnected, avoiding multiple connections to the handbrake motor and reducing workload.

[0031] The cable take-up assembly 8 includes a bracket 11, an elastic take-up reel 12, and a cable management frame 13. The bracket 11 is fixed to one side of the upper end of the handle 1. The elastic take-up reel 12 is rotatably mounted on the bracket 11. One end of the cable management frame 13 is fixed to the bracket 11, and the other end of the cable management frame 13 is located on one side of the elastic take-up reel 12 and has a cable management opening 14. Several circumferentially distributed rollers 15 are rotatably mounted on the side of the cable management opening 14. One end of the connecting wire 2 passes through the rotation axis of the elastic take-up reel 12 and is electrically connected to the rotary joint 9. The other end of the connecting wire 2 passes through the inside of the cable management opening 14 and is located between the rollers 15.

[0032] In this embodiment, the bracket 11 fixed to one side of the upper end of the handle 1 provides support for the entire assembly. The elastic reel 12, which is rotated on the bracket 11, can reel in and out the connecting cable 2. When the connecting cable 2 is needed, pull the connecting cable 2 outward, and the elastic reel 12 will rotate to release the connecting cable 2. When not in use, pull the connecting cable 2 and release it. The elastic reel 12 will rotate in the opposite direction to retract the connecting cable 2 under its own elastic force. The cable organizer 13 is used to organize the connecting cable 2. The other end of the connecting cable 2 passes through the inside of the cable management port 14 and is located between several circumferentially distributed rotating rollers 15 on the side of the cable management port 14. The rollers 15 can reduce the friction of the connecting cable 2 during the reeling and unloading process, making the reeling and unloading of the connecting cable 2 smoother and realizing the orderly organization of the connecting cable 2.

[0033] A protective shell 16 is fitted on the end of the connector 2 away from the rotary joint 9. A closable magnetic protective cover 17 is hinged to the opening of the protective shell 16. A magnetic metal block is provided on the protective shell 16 at the position corresponding to the magnetic protective cover 17. The protective shell 16 is located on the side of the roller 15 away from the elastic take-up reel 12, and a foam block 18 is fixed on the end of the protective shell 16 near the roller 15.

[0034] In this embodiment, a protective shell 16 is fitted over the connector end of the connecting cable 2 away from the rotary joint 9 to protect the interface at that end. A magnetic protective cover 17 is rotatably provided at the opening of the protective shell 16, which is closed when not in use to further protect the interface and prevent dust, debris, or accidental damage from entering. The protective shell 16 is located on the side of the roller 15 away from the elastic take-up reel 12, and a foam block 18 is fixed at the end of the protective shell 16 near the roller 15. During the retraction of the connecting cable 2, when the protective shell 16 moves close to the roller 15 with the connecting cable 2, the foam block 18 buffers the collision between the protective shell 16 and the roller 15, reducing wear and impact when they come into contact, thus providing protection. Furthermore, when the connecting cable 2 is retracted, the protective shell 16 is pushed to move on the connecting cable 2, retracting the end of the connecting cable 2 into the protective shell 16.

[0035] The elastic take-up reel 12 has a storage cavity 19. A metal sheet 23 is fixed on the side wall of the storage cavity 19. A winding post 20 is fixed at the center of the storage cavity 19. A through fixing groove 21 is opened on the winding post 20. Magnet blocks 22 are fixed at both ends of the extension line 10. The extension line 10 is wound around the winding post 20. One end of the extension line 10 is located inside the fixing groove 21, and the other end is attracted to the metal sheet 23 by the magnet block 22. A storage cover 24 is provided at the opening of the storage cavity 19.

[0036] In this embodiment, the storage cavity 19 is used to store the extension cord 10. A winding post 20 is fixed at the center of the storage cavity 19. The extension cord 10 is wound around the winding post 20. A fixing groove 21 through the winding post 20 can fix one end of the extension cord 10 to prevent it from loosening during storage. A metal sheet 23 is fixed on the side wall of the storage cavity 19. Magnet blocks 22 are fixed at both ends of the extension cord 10. The other end of the extension cord 10 is attracted to the metal sheet 23 by the magnet block 22, so that the extension cord 10 is stably wound and stored on the winding post 20. A storage cover 24 is provided at the opening of the storage cavity 19, which can be closed after the extension cord 10 is stored to prevent the extension cord 10 from falling out of the storage cavity 19 or getting dusty, and to ensure that the extension cord 10 is neatly stored and effectively protected.

[0037] The storage cover 24 has a handle 25 at the end away from the elastic reel 12. A magnet 26 is fixed on the winding post 20, and an iron piece is fixed on the storage cover 24. The position of the iron piece corresponds to that of the magnet 26.

[0038] In this embodiment, the storage cover 24 is provided with a handle 25, which is convenient for the user to hold and open / close the storage cover 24. The magnet 26 fixed on the winding post 20 corresponds to the iron piece fixed on the storage cover 24. When the storage cover 24 is closed, the magnet 26 will attract the iron piece, thereby firmly fixing the storage cover 24 at the opening of the storage cavity 19, preventing the extension cable 10 from coming out due to accidental opening of the storage cover 24. At the same time, the design of the handle 25 not only ensures the stability of the storage cover 24 after it is closed, but also makes it convenient for the user to quickly open and take out the extension cable 10 as needed.

[0039] An internal thread is provided on the upper end face of the handle 1 away from the cable take-up assembly 8. A screw cap 27 is provided at the internal thread, and the screw cap 27 is screwed into the internal thread. A cigarette lighter connector 28 is provided inside the mounting cavity 4. The cigarette lighter connector 28 is electrically connected to the controller 7 through a wire.

[0040] In this embodiment, the upper end of the handle 1 is provided with a screw cap 27, which can be opened and closed by screwing the screw cap 27. The cigarette lighter connector 28 provided inside the mounting cavity 4 is electrically connected to the controller 7 through a wire. When it is necessary to use the cigarette lighter interface to supply power or to charge the counterweight battery pack 3, the cigarette lighter connector 28 can be taken out and connected by unscrewing the screw cap 27. After use, the cigarette lighter connector 28 can be put back into the mounting cavity 4 and the screw cap 27 can be tightened to store and protect it, so as to prevent the cigarette lighter connector 28 from getting dusty or damaged.

[0041] Switch 5 is a three-position push-button reversing switch.

[0042] In this embodiment, when the switch 5 is operated in different directions, the direction of the output current can be changed, corresponding to two opposite currents output. This, in conjunction with the signals from the controller 7 and the trigger 6, controls the handbrake motor to rotate forward and backward, thereby realizing the unlocking or locking function of the electronic handbrake. When the switch 5 is in the middle position, the switch 5 remains open.

[0043] The working principle of this utility model is as follows: The detachable and rechargeable counterweight battery pack 3 supplies power to the device. When the trigger 6 is operated, the trigger 6 transmits a signal to the controller 7 in the mounting cavity 4. After receiving the signal, the controller 7 controls the current output in combination with the state of the switch 5. The direction of the current is changed by switching the switch 5. When the switch 5 is operated in different directions, the direction of the output current can be changed, corresponding to two opposite currents. The current is transmitted to the connecting line 2 through the rotary joint 9, thereby controlling the forward and reverse rotation of the handbrake motor to unlock or lock the electronic handbrake. In the cable reel assembly 8, the elastic cable reel 12 can release the connecting line 2 when pulled and retract the connecting line 2 by its own elasticity after being released. The roller 15 in the cable management port 14 of the cable management frame 13 reduces the friction of the connecting line 2 during reeling and unreeling, making it smoother. The protective shell 16 at the end of the connecting cable 2 and the closable magnetic protective cover 17 protect the interface. The foam block 18 buffers the collision between the protective shell 16 and the roller 15 when the connecting cable 2 is retracted, and can also push the protective shell 16 to retract the end of the connecting cable 2. The extension cable 10 is wound and stored in the storage cavity 19 of the elastic reel 12, and both ends are fixed by the magnet 22. When necessary, it can be plugged into the connecting cable 2 for convenient operation of the hidden handbrake motor. After operation, it can be separated to avoid multiple connections and reduce workload. The storage cover 24 is easy to open and close through the handle 25, and is firmly closed by the attraction of the magnet 26 and the iron sheet. After unscrewing the screw cap 27 on the handle 1, the cigarette lighter connector 28 electrically connected to the controller 7 in the mounting cavity 4 can be taken out for power supply or charging. After use, it can be put back and the screw cap 27 can be tightened for storage and protection.

[0044] In summary, by using the connecting wire 2, the switch 5, the trigger 6, the controller 7 and the extension wire 10 together, the current direction can be quickly switched to control the handbrake motor to unlock or lock. The trigger 6 and the controller 7 work together to respond sensitively. The extension wire 10 can be plugged into the connecting wire 2 to easily handle the operation of the handbrake motor in a hidden location, reduce the amount of repetitive connection work, and make the overall operation process simple, which greatly improves the efficiency of fault handling. With the cooperation of the protective shell 16, magnetic protective cover 17, foam block 18 and take-up assembly 8, the elastic take-up reel 12 automatically takes up and puts in the connecting cable 2. The roller 15 of the cable frame 13 reduces friction and avoids cable wear. The protective shell 16, magnetic protective cover 17 and foam block 18 at the end of the connecting cable 2 protect the end of the connecting cable 2, providing all-round protection for important components and extending the service life of the equipment. By using the counterweight battery pack 3 in conjunction with the cigarette lighter connector 28, the detachable and rechargeable counterweight battery pack 3 can provide continuous power to meet the needs of long-term operation; the cigarette lighter connector 28 can be connected to an external power source or to charge the counterweight battery pack, expanding the power supply options, avoiding operation interruptions due to power issues, and ensuring continuous operation.

[0045] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A handheld portable electronic handbrake unlocking device, comprising a grip (1), a connecting cable (2), a counterweight battery pack (3), a cable retraction assembly (8), and an extension cable (10), characterized in that, The counterweight battery pack (3) is a square platform. The counterweight battery pack (3) is detachably installed at the lower end of the handle (1). The cable take-up assembly (8) is installed on one side of the upper end of the handle (1). The connecting wire (2) is wound around the cable take-up assembly (8). The extension wire (10) is installed inside the cable take-up assembly (8). The handle (1) has an installation cavity (4) inside. The installation cavity (4) has a switch (5), a trigger (6), a controller (7) and a rotary joint (9) inside. The operating parts of the switch (5) and the trigger (6) extend out of the handle (1). The counterweight battery pack (3), the switch (5) and the trigger (6) are all electrically connected to the controller (7). One end of the connecting wire (2) is electrically connected to the switch (5) through the rotary joint (9).

2. The handheld portable electronic handbrake unlocking device according to claim 1, characterized in that, The cable take-up assembly (8) includes a bracket (11), an elastic take-up reel (12), and a cable management frame (13). The bracket (11) is fixed to one side of the upper end of the handle (1). The elastic take-up reel (12) is rotatably mounted on the bracket (11). One end of the cable management frame (13) is fixed to the bracket (11). The other end of the cable management frame (13) is located on one side of the elastic take-up reel (12) and has a cable management opening (14). Several circumferentially distributed rollers (15) are rotatably mounted on the side of the cable management opening (14). One end of the connecting wire (2) passes through the rotation axis of the elastic take-up reel (12) and is electrically connected to the rotary joint (9). The other end of the connecting wire (2) passes through the inside of the cable management opening (14) and is located between the rollers (15).

3. A handheld portable electronic handbrake unlocking device according to claim 2, characterized in that, The connector (2) is fitted with a protective shell (16) on the end of the connector (2) away from the rotary joint (9). A closable magnetic protective cover (17) is hinged at the opening of the protective shell (16). A magnetic metal block is provided on the protective shell (16) at the position corresponding to the magnetic protective cover (17). The protective shell (16) is located on the side of the roller (15) away from the elastic take-up reel (12). A foam block (18) is fixed on the end of the protective shell (16) close to the roller (15).

4. A handheld portable electronic handbrake unlocking device according to claim 3, characterized in that, The elastic take-up reel (12) has a storage cavity (19), a metal sheet (23) is fixed on the side wall of the storage cavity (19), a winding post (20) is fixed at the center of the storage cavity (19), a through fixing groove (21) is opened on the winding post (20), magnet blocks (22) are fixed at both ends of the extension line (10), the extension line (10) is wound on the winding post (20), one end of the extension line (10) is located inside the fixing groove (21), and the other end is attracted to the metal sheet (23) by the magnet block (22). A storage cover (24) is provided at the opening of the storage cavity (19).

5. A handheld portable electronic handbrake unlocking device according to claim 4, characterized in that, The storage cover (24) has a handle (25) at the end away from the elastic take-up reel (12), a magnet (26) is fixed on the winding post (20), and an iron plate is fixed on the storage cover (24), with the position of the iron plate corresponding to the magnet (26).

6. A handheld portable electronic handbrake unlocking device according to claim 5, characterized in that, The upper end of the handle (1) is provided with an internal thread on the side face away from the cable take-up assembly (8). A screw cap (27) is provided at the internal thread, and the screw cap (27) is screwed into the internal thread. A cigarette lighter connector (28) is provided inside the mounting cavity (4). The cigarette lighter connector (28) is electrically connected to the controller (7) through a wire.

7. A handheld portable electronic handbrake unlocking device according to claim 6, characterized in that, The switching switch (5) is a three-position push-button reversing switch.

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