Electric tow hook

Abstract

The utility model discloses an electric tow hook which comprises an anti-collision beam, an electric assembly, a tow hook body and a positioning support, the electric assembly is obliquely fixed to the middle of the anti-collision beam through the positioning support, and the electric assembly comprises a motor, a motor shell, a motor fixing base, a rotating device, a rotating base and a locking cover. The motor fixing base is fixedly connected with the positioning support, the motor shell wraps the motor in the motor fixing base for sealing, a motor output shaft is provided with a rotating device, the rotating device extends out of one side of the positioning support, and the rotating base is arranged on the rotating device in a sleeving mode and is rotationally connected with the positioning support. The tow hook is fixedly connected with the rotating seat through the locking cover; the motor is used for controlling the tow hook to stretch out and retract, so that the tow hook can stretch out when needing to be used and can be hidden in a vehicle chassis when not needing to be used, and the tow hook is prevented from being scratched and collided with the ground.

Description

TECHNICAL FIELD

[0001] The utility model relates to trailer hook technical field, especially a kind of electric trailer hook. BACKGROUND

[0002] Trailer hook is also called towing hook, it plays the role of connecting car and trailer.It can connect trailer and fault vehicle, realize towing for providing traction force;It can provide spare traction device under special circumstances.The existing trailer hook is directly welded or installed on the tail bumper beam, and the trailer hook is extended to the tail outside or placed in the vehicle bottom, which is not beautiful or affects the height of vehicle chassis, especially when passing some ups and downs road conditions, it can cause the trailer hook to scratch and impact with ground, therefore, to solve the above problems, an electric trailer hook is designed. SUMMARY

[0003] In view of the deficiency of the existing trailer hook, the utility model aims at providing an electric trailer hook, which has the advantages of electric drive, no influence on vehicle appearance and space.

[0004] To achieve the above object, one technical scheme of the utility model is as follows: an electric trailer hook, comprising bumper beam, electric assembly, trailer hook and positioning support, the electric assembly is fixed in the middle of the bumper beam by the positioning support, the electric assembly comprises motor, motor shell, motor fixing seat, rotating device, rotating seat and locking cover, the motor fixing seat is fixedly connected with the positioning support, the motor shell seals the motor in the motor fixing seat, the motor output shaft is provided with the rotating device, the rotating device extends from one side of the positioning support, the rotating seat is sleeved on the rotating device and rotationally connected with the positioning support, the trailer hook is fixedly connected with the rotating seat by the locking cover.

[0005] Preferably, the positioning support has mounting plate and reinforcing plate, the mounting plate is fixedly inclined in the middle of the bumper beam, the reinforcing plate is arranged on both sides of the mounting plate and fixedly connected with the bumper beam, and the mounting plate end face has a positioning hole for mounting motor.

[0006] Preferably, the rotating device has speed change gear box, output shaft and balance torsion spring, the speed change gear box input end is sleeved on the motor output shaft, the speed change gear box output end is inserted with the output shaft, the speed change gear box is used to increase the motor torque, and the balance torsion spring is arranged between the output shaft and the rotating seat, and the balance torsion spring is used to balance the weight of the trailer hook after extension.

[0007] Preferably, the trailer hook is V-shaped, one end of the trailer hook has a spherical seat, the other end of the trailer hook has a mounting flange for sleeving on the rotating seat, the middle of the trailer hook has a mounting hole for mounting plug, and the mounting flange axis is not perpendicular to the spherical seat axis.

[0008] Preferably, the anti-collision beam is provided with an energy absorption box at the position connected with the vehicle body.

[0009] The utility model discloses a beneficial effect is: 1, through the motor control trailer hook's extension and retraction, thereby can when needing using trailer hook extend it, need not use when can hide it in the vehicle chassis, prevent trailer hook and ground scratch impact and strike, 2, because the installation flange axis is not perpendicular to the spherical seat axis, and electric assembly is fixed in the middle part of anti-collision beam through the positioning support inclination, and trailer hook is V-shaped, makes the rotation path of trailer hook can avoid the rear bumper of vehicle, thereby after installation, do not affect the overall appearance of vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is front structure view of the utility model trailer hook extension state.

[0011] Fig. 2 It is front structure view of the utility model trailer hook retraction state.

[0012] Fig. 3 It is side structure view of the utility model electric assembly and trailer hook extension state.

[0013] Fig. 4 It is the utility model electric assembly explosion view. DETAILED DESCRIPTION

[0014] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and characteristics of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model is more clearly and explicitly defined.

[0015] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0016] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "providing", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0017] Please refer toFigs. 1 to 4 The utility model embodiment includes:

[0018] A kind of electric trailer hook, including crash beam 1, electric assembly 2, trailer hook 3 and positioning support 4, the electric assembly 2 is obliquely fixed in the middle part of crash beam 1 by positioning support 4, the electric assembly 2 includes motor 5, motor casing 6, motor fixed seat 7, rotating device 8, rotating seat 9 and locking cover 10, the motor fixed seat 7 is fixedly connected with positioning support 4, the motor casing 6 is sealed by covering motor 5 in motor fixed seat 7, the motor 5 output shaft 82 is equipped with rotating device 8, the rotating device 8 extends one side of positioning support 4, the rotating seat 9 is set on rotating device 8 and is rotatably connected with positioning support 4, the trailer hook 3 is fixedly connected with rotating seat 9 by locking cover 10;

[0019] The positioning support 4 has mounting plate 41 and reinforcing plate 42, the mounting plate 41 is obliquely fixed in the middle part of crash beam 1, the reinforcing plate 42 is arranged on both sides of mounting plate 41 and is fixedly connected with crash beam 1, the mounting plate 41 end face has the positioning hole of installing motor 5;

[0020] The rotating device 8 has variable speed gearbox 81, output shaft 82 and balance torsion spring 83, the variable speed gearbox 81 input end is set on motor 5 output shaft 82, the variable speed gearbox 81 output end is inserted with output shaft 82, the variable speed gearbox 8 is used to increase the torque of motor 5, the balance torsion spring 83 is arranged between output shaft 82 and rotating seat 9, the balance torsion spring 83 is used to balance the weight after the extension of trailer hook 3;

[0021] The trailer hook 3 is V-shaped, one end of the trailer hook 3 has a spherical seat 31, the other end of the trailer hook 3 has a mounting flange 32 for being set on the rotating seat 9, the middle part of the trailer hook 3 has a mounting hole 33 for installing a plug, the axis of the mounting flange 32 is not perpendicular to the axis of the spherical seat 31;

[0022] The crash beam 1 is also provided with an energy absorption box 11 at the connection position with the vehicle body;

[0023] Through the above setting, in actual working process, its specific working principle is as follows:

[0024] When the trailer hook 3 extends from the vehicle body, the motor 5 is started to drive the trailer hook 3 to rotate, so that the trailer hook 3 rotates around the mounting flange 32 as the center, so that the trailer hook 3 can be extended from the vehicle body for towing;

[0025] When the trailer hook 3 is retracted into the vehicle body, the motor 5 is started to drive the trailer hook 3 to rotate by 90 degrees to the retracted state, so that the trailer hook 3 does not occupy the space at the bottom of the vehicle after being retracted, thereby preventing the trailer hook 3 from colliding with the ground;

[0026] During the rotation of the trailer hook 3, due to the fact that the axis of the mounting flange 32 is not perpendicular to the axis of the spherical seat 31, the electric assembly 2 is fixed in the middle of the bumper beam 1 by the positioning support 4 in an inclined manner, and the trailer hook 3 is V-shaped, so that the rotation path of the trailer hook 3 can avoid the rear bumper of the vehicle, thereby not affecting the overall appearance of the vehicle after installation;

[0027] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. An electric trailer hitch, characterized in that, The device includes a crash beam, an electric assembly, a trailer hitch, and a positioning bracket. The electric assembly is obliquely fixed to the middle of the crash beam via the positioning bracket. The electric assembly includes a motor, a motor housing, a motor mounting base, a rotating device, a rotating seat, and a locking cover. The motor mounting base is fixedly connected to the positioning bracket. The motor housing encloses the motor within the motor mounting base for sealing. The motor output shaft is equipped with a rotating device that extends out of one side of the positioning bracket. The rotating seat is sleeved on the rotating device and rotatably connected to the positioning bracket. The trailer hitch is fixedly connected to the rotating seat via the locking cover.

2. The electric trailer hitch according to claim 1, characterized in that, The positioning bracket has a mounting plate and a reinforcing plate. The mounting plate is obliquely fixed in the middle of the anti-collision beam. The reinforcing plate is arranged on both sides of the mounting plate and fixedly connected to the anti-collision beam. The end face of the mounting plate has positioning holes for mounting motors.

3. The electric trailer hitch according to claim 1, characterized in that, The rotating device has a speed-changing gearbox, an output shaft, and a balance torsion spring. The input end of the speed-changing gearbox is sleeved on the output shaft of the motor, and the output end of the speed-changing gearbox is inserted into the output shaft. The speed-changing gearbox is used to increase the motor torque. The balance torsion spring is disposed between the output shaft and the rotating seat. The balance torsion spring is used to balance the weight of the trailer hook after it is extended.

4. The electric trailer hitch according to claim 1, characterized in that, The trailer hook is V-shaped, with a spherical seat at one end and a mounting flange at the other end for fitting onto the rotating seat. The middle of the trailer hook has a mounting hole for mounting a plug, and the axis of the mounting flange is not perpendicular to the axis of the spherical seat.

5. An electric trailer hitch according to claim 1, characterized in that, An energy-absorbing box is also provided at the connection point between the anti-collision beam and the vehicle body.

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