Motor lock for charging gun

Abstract

The utility model relates to the technical field of charging gun locking, and discloses a motor lock for a charging gun, which comprises a lock shell, a driving assembly and a spring bolt assembly, the driving assembly comprises a driving seat, a driving screw rod and a switching column, the driving seat is arranged on the lock shell in a sliding manner, the driving screw rod is rotatably arranged on the lock shell, and the switching column is arranged on the driving screw rod. A mounting cavity is formed in the end, close to the driving screw rod, of the driving base, one end of the driving screw rod penetrates into the mounting cavity, the switching column is embedded in the driving base, a lock bead is arranged at the end, close to the driving screw rod, of the switching column, and the lock bead is partially matched into a threaded groove of the driving screw rod; a spring bolt is fixed to one end of the lock seat, a lock hole allowing the spring bolt to stretch out is formed in the lock shell, an inclined groove is formed in the lock seat, the bottom end of the inclined driving block is fixedly connected with the driving seat, and the high end of the inclined driving block is slidably matched in the inclined groove. The charging gun is used for solving the problems that an existing charging gun is inconvenient to lock and unstable in locking.

Description

Technical Field

[0001] The utility model relates to the technical field of charging gun locking, in particular to a motor lock for a charging gun. Background Art

[0002] The charging gun is mainly used to charge electric vehicles. As a charging device, the charging gun is connected to the interface of the electric vehicle's rechargeable battery. During the charging process, the charging gun should be fixed in place to prevent it from falling off the car's charging interface. Therefore, a connecting component is provided on the charging gun to connect to the car's charging interface to fix the charging gun in place. Currently, the locking of the charging gun is completed by a lock buckle, which requires manual unlocking, is inconvenient to use, and the locking is unstable and is prone to falling off when hit. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a motor lock for a charging gun, so as to solve the problems that the prior charging gun is inconvenient to lock and the locking is unstable.

[0004] The purpose of the utility model is achieved through the following technical solutions: a motor lock for a charging gun, comprising a lock housing, a drive assembly and a lock tongue assembly, the drive assembly comprising a drive seat, a drive screw and a switching column, the drive seat is slidably arranged on the lock housing, the drive screw is rotatably mounted on the lock housing, the drive seat has the freedom to move along the axial direction of the drive screw, an installation cavity is opened at one end of the drive seat close to the drive screw, one end of the drive screw penetrates into the installation cavity, the switching column is embedded in the drive seat, the switching column is perpendicular to the drive screw, the A locking ball is provided at one end of the switching column close to the driving screw, and the locking ball moves close to or away from the driving screw, and the locking ball is partially adapted to the threaded groove of the driving screw. The locking tongue assembly includes a lock seat and an inclined driving block, and the lock seat is slidably mounted on the lock shell, and the moving direction of the lock seat is perpendicular to the moving direction of the driving seat. A locking tongue is fixed to one end of the lock seat, and the lock shell is provided with a lock hole for the locking tongue to extend out, and an inclined groove is provided in the lock seat, and the bottom end of the inclined driving block is fixedly connected to the driving seat, and the high end of the inclined driving block is slidably adapted in the inclined groove.

[0005] Furthermore, the drive assembly also includes a motor and a transmission shaft, the motor is fixed in the lock housing, the transmission shaft is rotatably arranged in the lock housing, the output shaft of the motor is connected to a driving gear, a first large gear and a small gear are mounted on the transmission shaft, a second large gear is mounted on the driving screw, the driving gear meshes with the first large gear, and the small gear meshes with the second large gear.

[0006] Furthermore, a spring is arranged in the installation cavity, one end of the spring is fixedly sleeved on the driving screw, and the other end of the spring is in contact with the driving seat.

[0007] Furthermore, a manual unlocking shell is fixed to the outside of the lock shell, a pull rope is arranged in the manual unlocking shell, and the pull rope movably penetrates into the lock shell to connect with the driving seat.

[0008] Furthermore, the internal thread of the switching column is adapted to be equipped with a switching screw, and the switching screw movably passes through the bottom of the driving seat.

[0009] Furthermore, an operating hole is provided in the lock housing at a position directly opposite to the switching screw.

[0010] The beneficial effects of the utility model are:

[0011] The lock ball fits in the thread groove of the drive screw. The rotation of the drive screw will drive the drive seat to make a linear motion along the axial direction of the drive screw. The drive seat drives the tilted drive block to move. The cooperation between the tilted drive block and the tilted groove drives the lock seat to move up and down, so that the lock tongue extends from the lock hole or retracts into the lock shell, realizing automatic locking and unlocking. The locking of the lock tongue is completed by the self-locking of the motor, which improves the locking stability and prevents the charging gun from colliding and falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a motor lock for a charging gun of the utility model;

[0013] Figure 2 This is a top view of a motor lock for a charging gun according to the utility model;

[0014] Figure 3 for Figure 2 Middle AA section view;

[0015] Figure 4 for Figure 2 Middle BB section view;

[0016] Figure 5 This is a schematic diagram of the internal structure of a motor lock for a charging gun of the utility model;

[0017] In the figure, 1-lock housing, 2-drive seat, 3-drive screw, 4-switching column, 5-installation cavity, 6-lock ball, 7-lock seat, 8-tilted drive block, 9-lock tongue, 10-lock hole, 11-tilted slot, 12-motor, 13-transmission shaft, 14-drive gear, 15-first large gear, 16-small gear, 17-second large gear, 18-spring, 19-manual unlocking housing, 20-pull rope, 21-switching screw, 22-operating hole. DETAILED DESCRIPTION

[0018] like Figures 1 to 5 As shown, a motor lock for a charging gun includes a lock housing 1, a driving assembly and a lock tongue assembly, the driving assembly includes a driving seat 2, a driving screw 3 and a switching column 4, the driving seat 2 is slidably arranged on the lock housing 1, the driving screw 3 is rotatably mounted on the lock housing 1, the driving seat 2 has the freedom to move along the axial direction of the driving screw 3, an installation cavity 5 is opened at one end of the driving seat 2 close to the driving screw 3, one end of the driving screw 3 penetrates into the installation cavity 5, the switching column 4 is embedded in the driving seat 2, the switching column 4 is perpendicular to the driving screw 3, a locking ball 6 is arranged at one end of the switching column 4 close to the driving screw 3, the locking ball 6 moves close to or away from the driving screw 3, and the locking ball 6 The lock tongue assembly includes a lock seat 7 and an inclined driving block 8, the lock seat 7 is slidably mounted on the lock housing 1, the moving direction of the lock seat 7 is perpendicular to the moving direction of the driving seat 2, a lock tongue 9 is fixed to one end of the lock seat 7, the lock housing 1 is provided with a lock hole 10 for the lock tongue 9 to extend out, an inclined groove 11 is provided in the lock seat 7, the bottom end of the inclined driving block 8 is fixedly connected to the driving seat 2, and the high end of the inclined driving block 8 is slidably adapted in the inclined groove 11, the driving assembly also includes a motor 12 and a transmission shaft 13, the motor 12 is fixed in the lock housing 1, the transmission shaft 13 is rotatably arranged in the lock housing 1, and the output shaft of the motor 12 is connected to the driving The driving gear 14, the transmission shaft 13 is provided with a first large gear 15 and a small gear 16, the driving screw 3 is provided with a second large gear 17, the driving gear 14 meshes with the first large gear 15, the small gear 16 meshes with the second large gear 17, the motor 12 drives the transmission shaft 13 to rotate through the meshing of the driving gear 14 and the first large gear 15, the transmission shaft 13 drives the driving screw 3 to rotate through the meshing of the small gear 16 and the second large gear 17, under normal conditions, a part of the lock ball 6 passes through the switching column 4 and fits in the thread groove of the driving screw 3, so that the driving screw 3 and the driving seat 2 form a screw transmission pair, and the rotation of the driving screw 3 will be converted into the driving seat 2, so that the driving screw 3 drives the driving seat 2 to make a linear motion along the axial direction of the driving screw 3, so that the driving seat 2 drives the tilting driving block 8 to move closer to or away from the lock seat 7. Since the tilting driving block 8 slides in the tilting groove 11, and the tilting driving block 8 makes a linear motion, and the moving direction of the lock seat 7 is perpendicular to the moving direction of the tilting driving block 8, the tilting driving block 8 drives the lock seat 7 to move up and down, and then drives the lock tongue 9 to extend or retract from the lock hole 10, so as to achieve the effect of automatic locking and unlocking. The locking of the lock tongue is completed by the self-locking of the motor 12, so as to improve the locking stability and prevent the charging gun from colliding and falling off.

[0019] Furthermore, if Figures 2 to 5As shown, a spring 18 is arranged in the installation cavity 5, one end of the spring 18 is fixedly sleeved on the driving screw 3, and the other end is in contact with the driving seat 2. A manual unlocking shell 19 is fixed on the outside of the lock shell 1, and a pull rope 20 is arranged in the manual unlocking shell 19. The pull rope 20 is movably inserted into the lock shell 1 to connect with the driving seat 2. The internal thread of the switching column 4 is adapted to be equipped with a switching screw 21, and the switching screw 21 is movably inserted from the bottom of the driving seat 2. An operating hole 22 is opened at a position of the lock shell 1 opposite to the switching screw 21. When the motor 12 is powered off or damaged and cannot work, manual unlocking is performed through the pull rope 20, and the switching screw 21 is rotated through the operating hole 22, so that the switching screw 21 moves away from the driving screw 3, so that the locking ball 6 returns to the switching column 4 under the action of gravity, so that the locking ball 6 is separated from the thread groove of the driving screw 3. At this time, the connection between the driving screw 3 and the driving seat 2 is separated, and then the pull rope 20 is pulled to drive the driving seat 2 to move, so that the driving seat 2 moves away from the lock seat 7, and the driving seat 2 squeezes The compression spring 18 drives the tilting driving block 8 to move, and the tilting driving block 8 drives the lock seat 7 to move upward, so that the lock tongue 9 returns to the lock shell 1 to complete the unlocking. After the pull rope 20 is loosened, the driving seat 2 is reset under the reaction force of the spring 18, and the driving seat 2 drives the lock seat 7 and the lock tongue 9 to reset through the tilting driving block 8, so as to avoid the problem that the motor 12 is suddenly damaged and cannot be unlocked; after the problem of the motor 12 is solved, the driving screw 3 is adjusted, and the lock ball 6 is pushed out from the top of the switching column 4 through the driving screw 3, so that the lock ball 6 is partially adapted to the thread groove of the driving screw 3, so that the driving screw 3 and the driving seat 2 re-form a screw transmission pair, so that the motor 12 can indirectly drive the lock seat 7 to move to realize the locking and unlocking operation; in specific implementation, a stepped groove is opened inside the switching column 4, and the stepped groove includes a small diameter groove and a large diameter groove. The small diameter groove passes through the top of the switching column 4, and the lock ball 6 is adapted to the large diameter groove. The lock ball 6 partially extends out of the small diameter groove, so that the lock ball 6 will not separate from the switching column 4.

Claims

1. A motor lock for a charging gun, characterized in that: The invention comprises a lock housing (1), a drive assembly and a lock tongue assembly, wherein the drive assembly comprises a drive seat (2), a drive screw (3) and a switching column (4), wherein the drive seat (2) is slidably arranged on the lock housing (1), the drive screw (3) is rotatably mounted on the lock housing (1), the drive seat (2) has the freedom to move along the axial direction of the drive screw (3), an installation cavity (5) is provided at one end of the drive seat (2) close to the drive screw (3), one end of the drive screw (3) penetrates into the installation cavity (5), the switching column (4) is embedded in the drive seat (2), the switching column (4) is perpendicular to the drive screw (3), and a lock ball (5) is provided at one end of the switch column (4) close to the drive screw (3) 6), the lock ball (6) moves close to or away from the drive screw (3), the lock ball (6) is partially adapted to the threaded groove of the drive screw (3), the lock tongue assembly comprises a lock seat (7) and an inclined drive block (8), the lock seat (7) is slidably mounted on the lock housing (1), the movement direction of the lock seat (7) is perpendicular to the movement direction of the drive seat (2), a lock tongue (9) is fixed to one end of the lock seat (7), the lock housing (1) is provided with a lock hole (10) for the lock tongue (9) to extend out, an inclined groove (11) is provided in the lock seat (7), the bottom end of the inclined drive block (8) is fixedly connected to the drive seat (2), and the high end of the inclined drive block (8) is slidably adapted in the inclined groove (11).

2. A motor lock for a charging gun according to claim 1, characterized in that: The driving assembly further comprises a motor (12) and a transmission shaft (13); the motor (12) is fixed in the lock housing (1); the transmission shaft (13) is rotatably arranged in the lock housing (1); the output shaft of the motor (12) is connected to a driving gear (14); a first large gear (15) and a small gear (16) are mounted on the transmission shaft (13); a second large gear (17) is mounted on the driving screw (3); the driving gear (14) is meshed with the first large gear (15); and the small gear (16) is meshed with the second large gear (17).

3. A motor lock for a charging gun according to claim 1, characterized in that: A spring (18) is arranged in the installation cavity (5), one end of the spring (18) is fixedly sleeved on the driving screw rod (3), and the other end is in contact with the driving seat (2).

4. A motor lock for a charging gun according to claim 3, characterized in that: A manual unlocking shell (19) is fixed to the outside of the lock shell (1), a pull rope (20) is arranged inside the manual unlocking shell (19), and the pull rope (20) is movably inserted into the lock shell (1) to connect with the drive seat (2).

5. A motor lock for a charging gun according to claim 4, characterized in that: The internal thread of the switching column (4) is adapted to be equipped with a switching screw (21), and the switching screw (21) movably passes through the bottom of the driving seat (2).

6. A motor lock for a charging gun according to claim 5, characterized in that: The lock housing (1) is provided with an operating hole (22) at a position directly opposite to the switching screw rod (21).

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