Automatic telescopic electric tow hook and automobile

Abstract

The utility model relates to the technical field of automobile accessories, and discloses an automatic telescopic electric tow hook and an automobile, which comprise a motor, a tow hook body, a guide piece which is in transmission connection with the motor and is sleeved on the outer side of the tow hook body, and a protective shell which is sleeved on the outer side of the guide piece, a positioning hole in the axis direction is formed in the outer side wall of the guiding piece, a spiral groove is formed in the inner wall of the protection shell, and a protruding clamping block is arranged on the outer side of the tow hook body. The clamping blocks penetrate through the positioning holes and are connected with the groove body in a sliding mode. The electric tow hook has the advantages that the motor is used for driving the electric tow hook to rotate and ascend and descend, the electric tow hook is hidden in a vehicle body when not used, the motor is started to be screwed out of the tow hook and ejects a front bumper cover plate when used, automation and integration of a vehicle are achieved, and using convenience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an automatically retractable electric trailer hook and an automobile. Background Art

[0002] The traditional trailer hook is separated from the vehicle and placed in the vehicle tool. When the vehicle needs to be towed, it is necessary to first remove the cover plate at the front bumper of the vehicle, and then connect the trailer hook to the connecting device on the longitudinal beam of the vehicle body through a threaded connection; after use, the trailer hook needs to be removed again. It can be seen that the traditional trailer hook is inconvenient to use.

[0003] In the patent literature, for example, the invention application with application publication number CN105109290A discloses an automatically retractable trailer hook, which uses the telescopic rod of the hydraulic strut to drive one end of the second hollow tube, and connects the other end of the second hollow tube to the hook, and controls the extension and retraction of the hook through the hydraulic strut. In this technical solution, the trailer hook is installed below the bottom beam of the car by welding or bolting a fixed plate. Although this technical solution is quick to install, in this solution, the trailer hook is exposed to the bottom of the car, which reduces the distance between the bottom of the car and the ground, and may damage the chassis of the car. In addition, in this technical solution, the trailer hook is a rear trailer hook, which is only used when towing a vehicle. Long-term external placement will reduce the durability of the structure. Utility Model Content

[0004] In order to overcome the disadvantages of the conventional trailer hook in the prior art, which is inconvenient to use and install and cannot be automatically extended, the utility model proposes an automatically retractable electric trailer hook and a vehicle, and the detailed technical scheme thereof is as follows:

[0005] An automatically retractable electric trailer hook comprises a motor, a trailer hook body, a guide member drivingly connected to the motor and sleeved on the outside of the trailer hook body, and a protective shell sleeved on the outside of the guide member; the guide member is provided with a positioning hole along the axial direction on the outer wall, the inner wall of the protective shell is provided with a spiral groove body, and the outside of the trailer hook body is provided with a protruding block; the block passes through the positioning hole and is slidably connected to the groove body.

[0006] Furthermore, a transmission shaft is arranged on the motor; a mounting hole is reserved at one end of the guide member, and the other end is an opening, and the guide member is fixedly connected to the transmission shaft through the mounting hole.

[0007] Furthermore, the guide member is a hollow tubular structure, and a positioning hole in a long strip shape and penetrating the side wall is opened along the axial direction; limiting holes are opened at both ends of the positioning hole in a circular manner along the side wall.

[0008] Furthermore, the trailer hook body includes a sleeve and a hook connected to the sleeve; a block protruding from the outer side surface is arranged on the outer side surface of the sleeve.

[0009] Furthermore, the protective shell is a cylindrical structure with openings at both ends and an inner wall provided with a spiral groove body that is concave inwards.

[0010] A car comprises a longitudinal beam and the above-mentioned electric trailer hook; the electric trailer hook is fixedly connected to the longitudinal beam.

[0011] The beneficial effects of the utility model are as follows: the utility model utilizes a motor to drive the electric trailer hook to rotate and lift, and is hidden in the vehicle body when not in use. When in use, the motor is started to rotate the trailer hook out and push off the front bumper cover, which is conducive to realizing the automation and integration of the vehicle and improving the convenience of user use.

[0012] In terms of structural composition, the utility model has a simple structure, which only includes a motor, a trailer hook body, a guide member and a protective shell, and occupies little space. By arranging a clamping block on the trailer hook body and using the positioning hole of the guide member and the groove of the protective shell for limiting, the trailer hook can realize rotation and lifting actions when the motor rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an exploded view of the utility model.

[0014] Figure 2 It is a schematic diagram of the combined state of the utility model.

[0015] Figure 3 It is a connection diagram of the motor and the guide member of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the trailer hook body of the utility model.

[0017] Figure 5 It is a structural schematic diagram of the protective shell of the utility model.

[0018] Figure 6 It is a cross-sectional view of the present utility model.

[0019] Figure 7 It is a schematic diagram of the motion state of the utility model.

[0020] in:

[0021] 100—motor; 200—guide piece; 300—trailer hook body; 400—protective shell;

[0022] 110—transmission shaft; 210—positioning hole; 220—limiting hole;

[0023] 310—sleeve; 320—hook; 330—block; 410—slot body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] An automatically retractable electric trailer hook Figure 1 and Figure 2 As shown, it includes a motor 100, a guide member 200, a trailer hook body 300 and a protective shell 400; the motor 100 is connected to the guide member 200 and drives the guide member 200 to rotate, the trailer hook body 300 is engaged in the guide member 200 and can rotate and rise with the guide member 200, the inner wall of the protective shell 400 is provided with an inwardly concave and spiral groove 410, and the trailer hook body 300 rotates along the direction of the groove 410.

[0026] More specifically, Figure 3 As shown, the motor 100 is provided with a transmission shaft 110; the guide member 200 is a hollow cylindrical structure, one end of which is reserved for the installation hole of the transmission shaft 110, and the other end is open, and the side wall is provided with a long strip-shaped positioning hole 210 that penetrates the side wall of the guide member 200 along the axial direction, and both ends of the positioning hole 210 are provided with limited holes 220 along the circumferential direction of the side wall. The guide member 200 is fixedly connected to the transmission shaft 110 and is driven by the motor 100 to rotate synchronously.

[0027] The structure of the trailer hook body 300 is as follows: Figure 4 As shown, it includes a sleeve 310 and a hook 320 connected to the sleeve 310. A block 330 protruding from the outer side is provided on the outer side of the sleeve 310. The block 330 passes through the positioning hole 210 or the limiting hole 220 of the guide member 200 and the end thereof is slidably connected to the spiral groove 410 of the protective shell 400. The structure of the protective shell 400 is as shown in FIG. Figure 5 As shown, it is a cylindrical structure with openings at both ends. The motor drive shaft 110 passes through one opening, and the hook 320 of the trailer hook body 300 passes through the other opening. Figure 6 ,exist Figure 6 In the figure, the sleeve 310 of the trailer hook body 300 is surrounded by the guide member 200, the protective shell 400 is sleeved on the outer side of the guide member 200, the motor 100 on the left is connected to the guide member 200 through the transmission shaft 110, and the hook 320 of the trailer hook body 300 extends out of the protective shell 400 on the right side.

[0028] The extension process of the electric trailer hook is as follows: Figure 7 As shown, the motor 100 first drives the guide member 200 to rotate. During the rotation of the guide member 200, the block 330 relatively moves from the limiting hole 220 to the positioning hole 210. At this time, the rotation of the guide member 200 will drive the block 330 to slide along the groove body 410. Since the groove body 410 is spiral, the block 330 will make a linear motion along the positioning hole 210 when the groove body 410 slides. When the block 330 moves to the end of the positioning hole 210, in order to prevent the trailer hook body 300 from moving too long, the limiting hole 220 will limit the axial movement of the block 330. The contraction process of the electric trailer hook can be obtained in the same way, and will not be repeated.

[0029] An automobile comprises the above-mentioned electric trailer hook and a longitudinal beam, wherein the electric trailer hook is fixedly connected to the longitudinal beam. Compared with the conventional threaded column trailer hook, the utility model adds a drive motor for realizing the extension and retraction function of the trailer hook. To cooperate with the automatic extension and retraction of the trailer hook, the shape of the front bumper cover is enlarged, which has a certain impact on the front bumper shape, but further realizes the automation and integration of the vehicle, while reducing unnecessary operations of customers.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatically retractable electric trailer hook, comprising a motor and a trailer hook body, characterized in that: It also includes a guide member that is transmission-connected to the motor and sleeved on the outside of the trailer hook body, and a protective shell that sleeves on the outside of the guide member; the guide member is provided with a positioning hole along the axial direction on the outer wall, the inner wall of the protective shell is provided with a spiral groove body, and the outside of the trailer hook body is provided with a protruding block; the block passes through the positioning hole and is slidably connected to the groove body.

2. The electric trailer hook according to claim 1, characterized in that: The motor is provided with a transmission shaft; a mounting hole is reserved at one end of the guide member, and the other end is an opening, and the guide member is fixedly connected to the transmission shaft through the mounting hole.

3. The electric trailer hook according to claim 2, characterized in that: The guide member is a hollow circular tubular structure, and a positioning hole in a long strip shape and penetrating the side wall is opened along the axial direction of the side wall; limiting holes are opened at both ends of the positioning hole in a circumferential manner along the side wall.

4. The electric trailer hook according to claim 3, characterized in that: The trailer hook body comprises a sleeve and a hook connected to the sleeve; a clamping block protruding from the outer side surface is arranged on the outer side surface of the sleeve.

5. The electric trailer hook according to claim 4, characterized in that: The protective shell is a cylindrical structure with openings at both ends and an inner wall provided with a spiral groove body that is concave inwards.

6. A vehicle, comprising a longitudinal beam, characterized in that: It comprises the electric trailer hook as described in any one of claims 1 to 5 above; the electric trailer hook is fixedly connected to the longitudinal beam.

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