Traction rod lifting adjusting device for trailer

Abstract

The draw bar lifting adjusting device comprises a base, a bottom plate is installed on the top of the base, a draw bar body is arranged on the right side of the base, a hanging ring is installed on the right side of the draw bar body, and an adjusting mechanism is arranged on the right side of the base. According to the traction rod lifting adjusting device for the trailer, firstly, an inserting piece is inserted into a limiting seat and fixed through an expansion screw, then a controller drives a base to be started, walking wheels drive a traction rod body to move to the position near a vehicle to be towed, at the moment, the controller drives an electric push rod to be started, and the electric push rod stretches out and draws back to drive a trailer support to rise; the position of the traction rod body is adjusted preliminarily, then the controller drives the motor to start, the shaft sleeve drives the limiting seat and the traction rod body to move upwards to be level with a chassis of a to-be-towed vehicle, finally, a hook on the to-be-towed vehicle is connected with the hanging ring, and the traveling wheels move forwards to drag the vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of trailers, in particular to a lifting and adjusting device for a tow bar of a trailer. Background Art

[0002] A trailer is a tool used to transport vehicles such as motorcycles. It is generally composed of a traction mechanism and a supporting mechanism. The traction mechanism is connected to the front vehicle and is used to tow the trailer, and the supporting mechanism is used to carry vehicles such as motorcycles.

[0003] The height of the drawbar of the existing trailer equipment cannot be automatically adjusted. Since the chassis heights of the towed vehicles are different, the traction bar of a single height is not practical. The user needs to select a trailer of a different height and reinstall it before it can be used, which is very troublesome. Therefore, a towbar lifting and adjusting device for a trailer is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a lifting and adjusting device for a tow bar of a trailer, which has the advantage of facilitating the height adjustment of the tow bar, and solves the problem that the height of the tow bar of the existing trailer equipment cannot be automatically adjusted. Due to the different chassis heights of the towed vehicles, the practicality of a tow bar of a single height is poor, and the user needs to select trailers of different heights and reinstall them before use, which is very troublesome to operate.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a trailer drawbar lifting and adjusting device, comprising a base, a bottom plate mounted on the top of the base, a drawbar body mounted on the right side of the base, a hanging ring mounted on the right side of the drawbar body, and an adjustment mechanism mounted on the right side of the base;

[0006] The adjustment mechanism includes a fixed block, a fixed block is installed on the right side of the base, an electric push rod is hinged on the outside of the fixed block, a trailer bracket is provided on the right side of the base, a base is provided on the right side of the base, a motor is installed on the top of the base, a threaded rod is installed inside the base, a shaft sleeve is sleeved on the outside of the threaded rod, a limit block is installed on the right side of the shaft sleeve, and an insert is installed on the left side of the traction rod body.

[0007] Furthermore, a controller is provided on the front side of the base, walking wheels are movably installed on the bottom of the base, and the number of the fixed blocks and the electric push rods are both two.

[0008] Furthermore, the tops of the two electric push rods are hinged to the two fixed blocks respectively, and the sides of the two electric push rods away from the two fixed blocks are hinged to the top of the trailer bracket.

[0009] Furthermore, the trailer bracket is A-shaped, an insert block is installed on the right side of the trailer bracket, a holder is installed on the right side of the base, a fixing screw is installed on the top of the holder, and the insert block and the holder are engaged with each other and threadedly connected by the fixing screw.

[0010] Furthermore, the output shaft of the motor is connected to the top of the threaded rod, and the side of the threaded rod away from the motor is rotatably connected to the inner bottom wall of the base.

[0011] Furthermore, a slide groove is provided on the right side of the base, the side of the limit block away from the sleeve passes through the slide groove and extends to the outside of the base, a slot is provided inside the limit block, and the left side of the insert extends into the slot.

[0012] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0013] The lifting and adjusting device of the tow bar for a trailer is provided with a bottom plate and a driving device on the top of the bottom plate so that the running wheels at the bottom drive the base and the tow bar body to move. The other end of the tow bar body is connected to the vehicle to be towed via a hanging ring. When the controller controls the driving device to start, the universal wheel can drive the tow bar body to move forward to achieve the purpose of towing. By providing an adjustment mechanism and cooperating with various structures of the adjustment mechanism, the tow bar body can be adjusted to automatically rise and fall, thereby adapting to different vehicles to be towed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view schematic diagram of the utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the utility model;

[0016] Figure 3 It is a partial three-dimensional schematic diagram of the utility model.

[0017] In the figure: 1 base, 2 bottom plate, 3 traction rod body, 4 hanging ring, 5 adjustment mechanism, 501 fixing block, 502 electric push rod, 503 trailer bracket, 504 base, 505 motor, 506 threaded rod, 507 bushing, 508 limit block, 500 insert, 6 walking wheel, 7 insert block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 A trailer drawbar lifting and adjusting device includes a base 1, a bottom plate 2 is installed on the top of the base 1, a drawbar body 3 is provided on the right side of the base 1, a hanging ring 4 is installed on the right side of the drawbar body 3, and an adjustment mechanism 5 is provided on the right side of the base 1;

[0020] The adjusting mechanism 5 includes a fixed block 501, a fixed block 501 is installed on the right side of the base 1, an electric push rod 502 is hinged on the outside of the fixed block 501, a trailer bracket 503 is provided on the right side of the base 1, a base 504 is provided on the right side of the base 1, a motor 505 is installed on the top of the base 504, a threaded rod 506 is installed inside the base 504, a shaft sleeve 507 is sleeved on the outside of the threaded rod 506, a limit block 508 is installed on the right side of the shaft sleeve 507, and an insert 509 is installed on the left side of the traction rod body 3.

[0021] exist Figure 1 and Figure 2 In the figure, a controller is provided on the front side of the base 1, and a traveling wheel 6 is movably installed at the bottom of the base 1. There are two fixed blocks 501 and two electric push rods 502. A driving device is provided on the top of the bottom plate 2 to enable the traveling wheel 6 at the bottom to drive the base 1 and the traction rod body 3 to move. The other end of the traction rod body 3 is connected to the vehicle to be towed through a hanging ring 4. When the controller controls the driving device to start, the universal wheel 6 can drive the traction rod body 3 to move forward to achieve the purpose of towing.

[0022] exist Figure 1 and Figure 2 In the embodiment, by providing an adjustment mechanism 5, the various structures of the adjustment mechanism 5 cooperate with each other, so that the traction rod body 3 can be adjusted to automatically rise and fall, thereby adapting to different vehicles to be towed. The adjustment mechanism 5 includes a fixed block 501, an electric push rod 502, a trailer bracket 503, a base 504, a motor 505, a threaded rod 506, a shaft sleeve 507, a limit block 508 and an insert 509. The tops of the two electric push rods 502 are respectively hinged to the two fixed blocks 501, and the sides of the two electric push rods 502 away from the two fixed blocks 501 are both hinged to the top of the trailer bracket 503.

[0023] exist Figure 1 and Figure 3 In the figure, the trailer bracket 503 is A-shaped, an insert block 7 is installed on the right side of the trailer bracket 503, a socket is installed on the right side of the base 504, a fixing screw is installed on the top of the socket, the insert block 7 and the socket are engaged with each other and are threadedly connected by the fixing screw. By setting an electric push rod 502, the controller drives the electric push rod 502 to start, and the electric push rod 502 can drive the trailer bracket 503 to move by extension and retraction, thereby adjusting the pitch angle of the trailer bracket 503, and then adjusting the position of the traction rod body 3, so as to facilitate the connection of the hanging ring 4 with the vehicle.

[0024] exist Figure 2 In the embodiment, the output shaft of the motor 505 is connected to the top of the threaded rod 506 , and the side of the threaded rod 506 away from the motor 505 is rotatably connected to the inner bottom wall of the base 504 .

[0025] exist Figure 2 In the figure, a slide groove is provided on the right side of the base 504, the side of the limit block 508 away from the sleeve 507 passes through the slide groove and extends to the outside of the base 504, a slot is provided inside the limit block 508, and the left side of the insert 509 extends to the inside of the slot.

[0026] To sum up, the trailer tow bar lifting and adjusting device is configured with an electric push rod 502. The controller drives the electric push rod 502 to start. The electric push rod 502 is extended and retracted to drive the trailer bracket 503 to move, thereby adjusting the pitch angle of the trailer bracket 503, and then adjusting the position of the tow bar body 3, so as to facilitate the connection between the hanging ring 4 and the vehicle. The motor 505 is fixed by configuring a base 504. When the controller drives the motor 505 to start, the threaded rod 506 can be driven to rotate, so that the shaft sleeve 507 drives the tow bar body 3 to rise and fall, thereby adapting to chassis of different heights.

[0027] In addition, when in use, first insert the plug 509 into the limit seat 508 and fix the plug 509 with the expansion screw, then the controller drives the base 1 to start, so that the walking wheel 6 drives the traction rod body 3 to move near the vehicle to be towed, at this time the controller drives the electric push rod 502 to start, the electric push rod 502 can be extended and retracted to drive the trailer bracket 503 to rise, preliminarily adjust the position of the traction rod body 3, and then the controller drives the motor 505 to start, at this time the shaft sleeve 507 drives the limit seat 508 and the traction rod body 3 to move upward to the same level as the chassis of the vehicle to be towed, finally the hook on the vehicle to be towed is connected to the hanging ring 4, at this time the walking wheel 6 moves forward to tow the vehicle.

[0028] The electrical components appearing in this article are all connected to the external controller and 220V AC power, and the controller can be a conventional known device that plays a control role such as a computer. The specific model specifications of each device in this article need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

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

Claims

1. A trailer drawbar lifting and adjusting device, comprising a base (1), characterized in that: A bottom plate (2) is installed on the top of the base (1), a traction rod body (3) is provided on the right side of the base (1), a hanging ring (4) is installed on the right side of the traction rod body (3), and an adjustment mechanism (5) is provided on the right side of the base (1); The adjustment mechanism (5) comprises a fixed block (501), a fixed block (501) is installed on the right side of the base (1), an electric push rod (502) is hinged on the outside of the fixed block (501), a trailer bracket (503) is provided on the right side of the base (1), a base (504) is provided on the right side of the base (1), a motor (505) is installed on the top of the base (504), a threaded rod (506) is installed inside the base (504), a shaft sleeve (507) is sleeved on the outside of the threaded rod (506), a limit block (508) is installed on the right side of the shaft sleeve (507), and an insert (509) is installed on the left side of the traction rod body (3).

2. The trailer drawbar lifting and adjusting device according to claim 1, characterized in that: A controller is provided on the front side of the base (1), and a walking wheel (6) is movably mounted on the bottom of the base (1). The number of the fixed block (501) and the number of the electric push rod (502) are both two.

3. The trailer drawbar lifting and adjusting device according to claim 1, characterized in that: The tops of the two electric push rods (502) are respectively hinged to the two fixed blocks (501), and the sides of the two electric push rods (502) away from the two fixed blocks (501) are both hinged to the top of the trailer bracket (503).

4. The trailer drawbar lifting and adjusting device according to claim 1, characterized in that: The trailer bracket (503) is A-shaped, an insert block (7) is installed on the right side of the trailer bracket (503), a clamping seat is installed on the right side of the base (504), a fixing screw is installed on the top of the clamping seat, and the insert block (7) and the clamping seat are mutually engaged and threadedly connected via the fixing screw.

5. The trailer drawbar lifting and adjusting device according to claim 1, characterized in that: The output shaft of the motor (505) is connected to the top of the threaded rod (506), and the side of the threaded rod (506) away from the motor (505) is rotatably connected to the inner bottom wall of the base (504).

6. The trailer drawbar lifting and adjusting device according to claim 1, characterized in that: A sliding groove is provided on the right side of the base (504), and the side of the limiting block (508) away from the shaft sleeve (507) passes through the sliding groove and extends to the outside of the base (504). A slot is provided inside the limiting block (508), and the left side of the insert (509) extends into the inside of the slot.

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