Steerable towing hook device

Abstract

The utility model discloses a steerable towing hook device which comprises a towing ball main body and a towing arm, and the towing ball main body comprises a towing ball and a towing ball hanging piece; the trailer arm comprises a hanging piece arm and a fixing arm, square steel used for being connected with an automobile receiver is arranged on the fixing arm, the trailer ball hanging piece is fixedly connected with the outer back face of the hanging piece arm, the hanging piece arm comprises a steering device enabling the trailer ball hanging piece to move, and the hanging piece arm is connected with the fixing arm in a clamped mode through the steering device enabling the trailer ball hanging piece to move. The utility model provides a steerable towing hook device which is reasonable in structure, strong in practicability, capable of enabling a towing ball main body hanging piece to move back and forth and steer, flexible in position adjustment of a towing hook, convenient to use and capable of improving working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of connection devices for towed caravans, and particularly relates to a tow hook device that can turn. Background Art

[0002] A towed caravan does not have an independent drive system and needs to be connected to a towing vehicle through a connection device, and the towing vehicle provides the driving force for driving.

[0003] The structure of the connection device directly affects the connection stability between the towed caravan and the towing vehicle. Generally, the trailer hook of the existing connection device is fixedly arranged on the rear bumper of the towing vehicle, and the bearing capacity of the trailer hook is concentrated at a point on the rear bumper of the towing vehicle, resulting in low stability of the connection device;

[0004] Moreover, in the prior art, some tow hook devices include a trailer ball main body and a trailer arm. The trailer arm includes a vertical groove, and the trailer ball main body is arranged in the vertical groove. Then, the trailer ball main body and both sides of the vertical groove are connected by a pin shaft, resulting in that the trailer ball main body cannot move back and forth and turn, and the position adjustment of the tow hook device is not flexible enough, inconvenient to use, resulting in a long installation and disassembly time and low work efficiency. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a tow hook device that can turn, which has a reasonable structure, strong practicability, can make the trailer ball main body pendant move back and forth and turn, is flexible in adjusting the position of the tow hook, convenient to use, and improves work efficiency.

[0006] To achieve the above object, the utility model provides a tow hook device that can turn, which includes a trailer ball main body and a trailer arm. The trailer ball main body includes a trailer ball and a trailer ball pendant; the trailer arm includes a pendant arm and a fixed arm, and a square steel for connecting an automobile receiver is arranged on the fixed arm. The trailer ball pendant is fixedly connected to the outer back surface of the pendant arm, and a device for moving and turning the trailer ball pendant is included on the pendant arm. The pendant arm is clamped to the fixed arm through the device for moving and turning the trailer ball pendant.

[0007] Optionally, the device for moving and turning the trailer ball pendant includes a first connecting rod seat and a second connecting rod seat. The first connecting rod seat is fixedly connected to the pendant arm, the second connecting rod seat is fixedly connected to the square steel, and the device for moving and turning the trailer ball pendant is arranged between the first connecting rod seat and the second connecting rod seat; the device for moving and turning the trailer ball pendant is a foldable connecting rod device.

[0008] Optionally, the collapsible link device includes a first link, a second link, a third link, and a fourth link; one end of the first link and the third link are respectively fixedly connected to both ends of the first link seat, and the other end of the first link includes a first screw, and the first link is connected to one end of the second link through the first screw; the other end of the second link is connected to one end of the second link seat; the other end of the third link includes a second screw, and the other end of the third link is connected to one end of the fourth link through the second screw, and the other end of the fourth link is connected to the other end of the second link seat.

[0009] Optionally, both ends of the first link seat respectively include a third screw and a fourth screw, and one end of the first link and the third link are respectively fixedly connected to both ends of the first link seat through the third screw and the fourth screw.

[0010] Optionally, both ends of the second link seat respectively include a fifth screw and a sixth screw, and the other end of the second link and the other end of the fourth link are respectively connected to both ends of the second link seat through the fifth screw and the sixth screw.

[0011] Optionally, a winch device is provided on the square steel, and a winch rope is included on the winch device, and the winch device is connected to the hanging arm through the winch rope.

[0012] Optionally, the winch device includes a winch and a crank, the winch rope is arranged on the winch, and the winch device controls the rotation of the winch through the crank.

[0013] Optionally, the trailer ball hanging part moving and steering device includes a slide rail device, and the hanging arm is clamped to the fixed arm through the slide rail device.

[0014] Optionally, the slide rail device includes a first slide rail and a second slide rail, a slide rail seat is included on the hanging arm, one end of the first slide rail and the second slide rail are respectively connected to the slide rail seat, and the other end of the first slide rail and the second slide rail are respectively connected to the square steel.

[0015] Optionally, both ends of the slide rail seat respectively include a seventh screw and an eighth screw, ninth screws and tenth screws are respectively arranged on both sides of the square steel, one end of the first slide rail and the second slide rail are respectively connected to the seventh screw and the eighth screw, and the other end of the first slide rail and the second slide rail are respectively connected to the ninth screw and the tenth screw.

[0016] The beneficial technical effects of the present utility model are as follows: The present utility model is a swiveling towing hook device, which includes a trailer ball main body and a trailer arm. The trailer ball main body includes a trailer ball and a trailer ball pendant; the trailer arm includes a pendant arm and a fixed arm, and a square steel for connecting an automobile receiver is provided on the fixed arm. The trailer ball pendant is fixedly connected to the outer back surface of the pendant arm. The pendant arm includes a device for moving and steering the trailer ball pendant, and the pendant arm is clamped to the fixed arm through the device for moving and steering the trailer ball pendant.

[0017] By providing a device for moving and steering the trailer ball pendant between the pendant arm and the fixed arm in the utility model, the position of the trailer ball main body can be adjusted more flexibly, the use of the towing hook device is more convenient, the installation and disassembly are more time-saving and labor-saving, the work efficiency is improved, and the labor cost is reduced;

[0018] The present utility model has strong practicability, high safety and reliability, and is suitable for widespread promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is the first structural schematic diagram of the first embodiment of the swiveling towing hook device of the present utility model;

[0021] Figure 2 It is the second structural schematic diagram of the first embodiment of the swiveling towing hook device of the present utility model;

[0022] Figure 3 It is the third structural schematic diagram of the first embodiment of the swiveling towing hook device of the present utility model;

[0023] Figure 4 It is the fourth structural schematic diagram of the first embodiment of the swiveling towing hook device of the present utility model;

[0024] Figure 5 It is the first structural schematic diagram of the closed state of the first embodiment of the swiveling towing hook device of the present utility model;

[0025] Figure 6 It is the second structural schematic diagram of the closed state of the first embodiment of the swiveling towing hook device of the present utility model;

[0026] Figure 7Third structural schematic diagram of the closed state of the first embodiment of the steerable towing hook device of the present utility model;

[0027] Figure 8 Cross-sectional view of the first embodiment of the steerable towing hook device of the present utility model;

[0028] Figure 9 First structural schematic diagram of the second embodiment of the steerable towing hook device of the present utility model;

[0029] Figure 10 Second structural schematic diagram of the second embodiment of the steerable towing hook device of the present utility model;

[0030] Figure 11 First top view of the second embodiment of the steerable towing hook device of the present utility model;

[0031] Figure 12 Third structural schematic diagram of the second embodiment of the steerable towing hook device of the present utility model;

[0032] Figure 13 Fourth structural schematic diagram of the second embodiment of the steerable towing hook device of the present utility model;

[0033] Figure 14 Second top view of the second embodiment of the steerable towing hook device of the present utility model;

[0034] Figure 15 Bottom view of the second embodiment of the steerable towing hook device of the present utility model.

[0035] The realization of the purpose, functional characteristics and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the meaning of " / " in the whole text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] The present utility model provides a swiveling tow hitch device.

[0041] Embodiment 1

[0042] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , in an embodiment of the present utility model, the swiveling tow hitch device includes a trailer ball body 1 and a trailer arm 2. The trailer ball body 1 includes a trailer ball 12 and a trailer ball pendant 11; the trailer arm 2 includes a pendant arm 21 and a fixed arm 22. A square steel 29 for connecting to an automotive receiver is provided on the fixed arm 22. The pendant arm 21 is used to adjust the ground clearance of the trailer ball pendant 11; the fixed arm 22 is used to connect to the automotive receiver and fits with the pendant arm 21.

[0043] The trailer ball hanger 11 is fixedly connected to the outer back surface of the hanger arm 21. The hanger arm 21 is provided with a device 20 for moving and steering the trailer ball hanger. The hanger arm 21 is clamped to the fixed arm 22 through the device 20 for moving and steering the trailer ball hanger. The device 20 for moving and steering the trailer ball hanger can increase the adjustable position area of the trailer ball 12 in the horizontal plane direction, effectively solving the problem of difficulty in the first step of trailer work (connecting the trailer ball).

[0044] In this embodiment, preferably, the trailer ball body 1 is provided with a trailer ball 12. According to actual needs, a plurality of trailer balls can be provided on the trailer ball body 1; the trailer ball is used to connect the towing device of the RV.

[0045] See Figure 5 , in this embodiment, preferably, the trailer ball hanger 11 is provided with a hanger pin 13. The trailer ball hanger 11 is fixedly connected to the hanger arm 21 through the hanger pin 13. See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , in this embodiment, the hanger arm 21 includes a first side 25 and a second side 26. The outer sides of the first side 25 and the second side 26 are provided with a plurality of pin holes. The hanger pin 13 is connected to the hanger arm 21 through the pin holes. The trailer ball hanger is connected to the outer back surface of the hanger arm 21 through the hanger pin 13. Of course, according to actual needs, a plurality of hanger pins 13 can be provided to connect to the hanger arm 21.

[0046] In this embodiment, preferably, the front surface of the hanger arm 21 is formed by a vertical groove 27 formed by the first side 25 and the second side 26. The hanger arm 21 is clamped to the fixed arm 22 through the device 20 for moving and steering the trailer ball hanger; that is to say, by manually pushing the device 20 for moving and steering the hanger to move and steer, the hanger arm 21 moves and steers along with the device 20 for moving and steering the hanger, and the fixed arm 22 remains stationary. When the hanger arm 21 moves and steers to a position opposite to the fixed arm 21, the hanger arm 21 is clamped to both sides of the fixed arm 22 through the first side 25 and the second side 26.

[0047] In this embodiment, preferably, the hanger arm 21 is provided with a trailer arm pin 28. The hanger arm 21 is connected to the fixed arm 22 through the trailer arm pin 28; the trailer arm pin 28 is used to fix the positions of the hanger arm 21 and the fixed arm 22 when the vehicle is running.

[0048] See Figures 1 to 8, in this embodiment, preferably, the trailer ball hanger moving and steering device 20 includes a first connecting rod seat 241 and a second connecting rod seat 242. The first connecting rod seat 241 is fixedly connected to the hanger arm 21, and the second connecting rod seat 242 is fixedly connected to the square steel 29. The trailer ball hanger moving and steering device 20 is arranged between the first connecting rod seat 241 and the second connecting rod seat 242; the trailer ball hanger moving and steering device 20 is a foldable connecting rod device 201.

[0049] In this embodiment, the first connecting rod seat 241 is arranged on the hanger arm 21, the second connecting rod seat 242 is arranged on the square steel 29, and the trailer ball hanger moving and steering device 20 is arranged between the first connecting rod seat 241 and the second connecting rod seat 242. Setting the first connecting rod seat 241 and the second connecting rod seat 242 makes the trailer ball hanger moving and steering device 20 more stable and reliable.

[0050] , in this embodiment, preferably, the trailer ball hanger moving and steering device 20 is a foldable connecting rod device 201, that is, the foldable connecting rod device 201 can be folded for use or unfolded for use, which is more convenient to use.

[0051] , in this embodiment, further preferably, the foldable connecting rod device 201 includes a first connecting rod 231, a second connecting rod 232, a third connecting rod 233 and a fourth connecting rod 234; one ends of the first connecting rod 231 and the third connecting rod 233 are respectively fixedly connected to both ends of the first connecting rod seat 241. The other end of the first connecting rod 231 includes a first screw rod 2311, and the first connecting rod 231 is connected to one end of the second connecting rod 232 through the first screw rod 2311; the other end of the second connecting rod 232 is connected to one end of the second connecting seat 242; the other end of the third connecting rod 233 includes a second screw rod 2331, and the other end of the third connecting rod 233 is connected to one end of the fourth connecting rod 234 through the second screw rod 2331, and the other end of the fourth connecting rod 234 is connected to the other end of the second connecting rod seat 242.

[0052] In this embodiment, the other end of the first connecting rod 231 is connected to one end of the second connecting rod 232 through the first screw rod 2311; the other end of the first connecting rod 231 is folded by turning the first screw rod 2311, and one end of the second connecting rod 232 can be folded by turning with the first screw rod 2311; similarly, the other end of the third connecting rod 233 can be folded by turning the second screw rod 2331; one end of the fourth connecting rod 234 can be folded by turning the second screw rod 2331.

[0053] In this embodiment, further, preferably, both ends of the first link seat 241 respectively include a third screw 2411 and a fourth screw 2412. One ends of the first link 231 and the third link 233 are respectively fixedly connected to both ends of the first link seat 241 through the third screw 2411 and the fourth screw 2412.

[0054] In this embodiment, one end of the first link 231 is connected to one end of the first link seat 241 through the third screw 2411, and one end of the first link 231 can be folded and turned through the third screw 2411; one end of the third link 233 is fixedly connected to the other end of the first link seat 241 through the fourth screw 2412, and one end of the third link 233 can be folded and turned through the fourth screw 2412.

[0055] In this embodiment, further, preferably, both ends of the second connection seat 242 respectively include a fifth screw 2421 and a sixth screw 2422. The other end of the second link 232 and the other end of the fourth link 234 are respectively connected to both ends of the second link seat 242 through the fifth screw 2421 and the sixth screw 2422.

[0056] In this embodiment, the other end of the second link 232 is connected to one end of the second connection seat 242 through the fifth screw 2421, and the other end of the second link 232 can be folded and turned through the fifth screw 2421; the other end of the fourth link 234 is fixedly connected to the other end of the second link seat 242 through the sixth screw 2422, and the other end of the fourth link 234 can be folded and turned through the sixth screw 2422.

[0057] See Figures 1 to 8 , in this embodiment, preferably, in order to move and turn the foldable link device 201 more conveniently, a winch device 3 is provided on the square steel 29. The winch device 3 includes a winch rope 32, and the winch device 3 is connected to the hanging arm 21 through the winch rope 32.

[0058] In this embodiment, a hole is provided on the fixed arm 22. One end of the winch rope 32 is wound around the winch device 3, and the other end of the winch rope 32 is connected to the vertical groove 27 of the hanging arm 21; preferably, a hook is provided in the vertical groove 27, and the other end of the winch rope 32 is fixedly connected to the hook; when the winch device 3 controls the winch rope 32 to stretch back and forth, the hanging arm 21 stretches back and forth through the foldable link device 201. When the hanging arm 21 moves and turns to the relative position of the fixed arm 22 through the foldable link device 201, the hanging arm 21 is clamped on the fixed arm 22.

[0059] In this embodiment, further, preferably, in order to save time and effort and improve efficiency, the winch device includes a winch 31 and a crank 33. The winch rope 32 is arranged on the winch 31, and the winch device 3 controls the rotation of the winch 31 through the crank 33.

[0060] In this embodiment, the crank 33 controls the rotation of the winch 31, and the winch rope 32 drives the hanging arm 21 to move back and forth as the winch 31 rotates. The hanging arm 21 is rotationally and movably clamped on the fixed arm 22 through the foldable link device 201.

[0061] Embodiment 2

[0062] See Figures 9 to 15 , in this embodiment, preferably, the trailer ball hanging and moving steering device 20 includes a slide rail device 202, and the hanging arm 21 is clamped to the fixed arm 22 through the slide rail device 202.

[0063] In this embodiment, the hanging arm 21 drives the trailer ball main body 1 to move and turn along the slide rail device 202. When the hanging arm 21 moves and turns to the relative position of the fixed arm 22, the hanging arm 21 is clamped to the fixed arm 22.

[0064] The trailer ball main body 1 moves and turns along the slide rail device 202, and the position adjustment is more flexible and the use is more convenient.

[0065] In this embodiment, further, preferably, the slide rail device 202 includes a first slide rail 235 and a second slide rail 236. The hanging arm 21 is provided with a slide rail seat 243. One end of the first slide rail 235 and the second slide rail 236 are respectively connected to both ends of the slide rail seat 243, and the other end of the first slide rail 235 and the second slide rail 236 are respectively connected to the square steel 29.

[0066] In this embodiment, the first slide rail 235 and the second slide rail 236 are slide rails with both ends closed. One end of the first slide rail 235 and the second slide rail 236 are respectively arranged on both sides of the slide rail seat 243, and the other end of the first slide rail 235 and the second slide rail 236 are respectively arranged on both sides of the square steel 29. The hanging arm 21 drives the trailer ball main body 1 to turn and slide along the first slide rail 235 and the second slide rail 236. When the hanging arm 21 moves and turns to the relative position of the fixed arm 22, the hanging arm 21 is clamped to the fixed arm 22.

[0067] In this embodiment, further, preferably, both ends of the slide rail base 243 respectively include a seventh screw 2431 and an eighth screw 2432, both sides of the square steel are respectively provided with a ninth screw 291 and a tenth screw 292, one ends of the first slide rail 235 and the second slide rail 236 are respectively connected to the seventh screw 2431 and the eighth screw 2432, and the other ends of the first slide rail 235 and the second slide rail 236 are respectively connected to the ninth screw 291 and the tenth screw 292.

[0068] In this embodiment, the hanging arm 21 slides on the first slide rail 235 and the second slide rail 236 respectively through the seventh screw 2431 and the eighth screw 2432. When the hanging arm 21 slides and turns to the relative position of the fixed arm 22, the hanging arm 21 is clamped on the fixed arm 22.

[0069] See Figures 9 to 15 , in this embodiment, preferably, in order to slide and turn the slide rail device 202 more conveniently, a winch device 3 is provided on the square steel 29. The winch device 3 includes a winch rope 32, and the winch device 3 is connected to the hanging arm 21 through the winch rope 32.

[0070] In this embodiment, a hole is provided on the fixed arm 22. One end of the winch rope 32 is wound on the winch device 3, and the other end of the winch rope 32 is connected to the vertical groove 27 of the hanging arm 21; preferably, a hook is provided in the vertical groove 27, and the other end of the winch rope 32 is fixedly connected to the hook; when the winch device 3 controls the winch rope 32 to stretch back and forth, the hanging arm 21 stretches back and forth through the slide rail device 202. When the hanging arm 21 moves and turns to the relative position of the fixed arm 22 through the slide rail device 202, the hanging arm 21 is clamped on the fixed arm 22.

[0071] In this embodiment, further, preferably, in order to save time and effort and improve efficiency, the winch device includes a winch 31 and a crank 33. The winch rope 32 is arranged on the winch 31, and the winch device 3 controls the winch 31 to rotate through the crank 33.

[0072] In this embodiment, the crank 33 controls the winch 31 to rotate, the winch rope 32 drags the hanging arm 21 to move back and forth as the winch 31 rotates, and the hanging arm 21 is turned and moved through the slide rail device 202 and clamped on the fixed arm 22.

[0073] In this embodiment, preferably, a receiver plug lock 4 for connecting to a motorhome receiver can be provided on the side wall of the square steel 29.

[0074] The receiver plug lock 4 can connect the square steel 29 to the motorhome receiver. The receiver plug lock 4 has an anti-theft function.

[0075] The structure of the utility model is reasonable, with strong practicability. It has mobile steering, and is more flexible in adjusting positions. The installation and disassembly are more convenient, greatly improving the work efficiency and reducing the labor cost.

[0076] The above are only the optional embodiments of the utility model, and do not limit the patent scope of the utility model accordingly. Any equivalent structural transformation made by using the description and drawings of the utility model under the inventive concept of the utility model, or direct / indirect application in other related technical fields shall be included in the patent protection scope of the utility model.

Claims

1. A steerable towing hook device, comprising a trailer ball body and a trailer arm. The trailer ball body includes a trailer ball and a trailer ball hanger; the trailer arm includes a hanger arm and a fixed arm, and a square steel for connecting to an automobile receiver is provided on the fixed arm. The trailer ball hanger is fixedly connected to the outer back surface of the hanger arm, and is characterized in that, The hanging arm is provided with a device for moving and steering the trailer ball hanger, and the hanging arm is clamped to the fixed arm through the device for moving and steering the trailer ball hanger.

2. The steerable tow hitch device according to claim 1, characterized in that, The device for moving and steering the trailer ball hanger includes a first connecting rod seat and a second connecting rod seat. The first connecting rod seat is fixedly connected to the hanging arm, and the second connecting rod seat is fixedly connected to the square steel. The device for moving and steering the trailer ball hanger is arranged between the first connecting rod seat and the second connecting rod seat; the device for moving and steering the trailer ball hanger is a foldable connecting rod device.

3. The steerable tow hitch device according to claim 2, wherein, The foldable connecting rod device includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod; one ends of the first connecting rod and the third connecting rod are respectively fixedly connected to both ends of the first connecting rod seat. The other end of the first connecting rod is provided with a first screw rod, and the first connecting rod is connected to one end of the second connecting rod through the first screw rod; the other end of the second connecting rod is connected to one end of the second connecting rod seat; the other end of the third connecting rod is provided with a second screw rod, and the other end of the third connecting rod is connected to one end of the fourth connecting rod through the second screw rod, and the other end of the fourth connecting rod is connected to the other end of the second connecting rod seat.

4. The steerable tow hitch device according to claim 3, wherein, Both ends of the first connecting rod seat are respectively provided with a third screw rod and a fourth screw rod, and one ends of the first connecting rod and the third connecting rod are respectively fixedly connected to both ends of the first connecting rod seat through the third screw rod and the fourth screw rod.

5. The steerable tow hitch device according to claim 4, characterized in that, Both ends of the second connecting rod seat are respectively provided with a fifth screw rod and a sixth screw rod, and the other end of the second connecting rod and the other end of the fourth connecting rod are respectively connected to both ends of the second connecting rod seat through the fifth screw rod and the sixth screw rod.

6. The steerable tow hitch device according to claim 5, characterized in that, A winch device is arranged on the square steel. The winch device is provided with a winch rope, and the winch device is connected to the hanging arm through the winch rope.

7. The steerable tow hitch device according to claim 6, characterized in that, The winch device includes a winch and a crank. The winch rope is arranged on the winch, and the winch device controls the rotation of the winch through the crank.

8. The steerable tow hitch device according to claim 1, characterized in that, The device for moving and steering the trailer ball hanger includes a slide rail device, and the hanging arm is clamped to the fixed arm through the slide rail device.

9. The steerable tow hitch device according to claim 8, characterized in that, The slide rail device includes a first slide rail and a second slide rail. The hanging arm is provided with a slide rail seat. One ends of the first slide rail and the second slide rail are respectively connected to the slide rail seat, and the other ends of the first slide rail and the second slide rail are respectively connected to the square steel.

10. The steerable tow hitch device according to claim 9, characterized in that, Both ends of the slide rail seat are respectively provided with a seventh screw rod and an eighth screw rod. Ninth screw rods and tenth screw rods are respectively arranged on both sides of the square steel. One ends of the first slide rail and the second slide rail are respectively connected to the seventh screw rod and the eighth screw rod, and the other ends of the first slide rail and the second slide rail are respectively connected to the ninth screw rod and the tenth screw rod.

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