阅读说明：本技术 一种伸缩式拖车杠 (Telescopic trailer thick stick ) 是由 曹林云 于 2019-12-05 设计创作，主要内容包括：本发明公开了一种伸缩式拖车杠,包括：横梁组件,还包括插接管组件、伸缩连接组件和调节伸缩连接组件伸缩量的调节组件,所述伸缩连接组件的一端与横梁组件固定连接,另一端与插接管组件固定连接；所述伸缩连接组件包括对称设置的左伸缩件和右伸缩件,所述左伸缩件的两端分别与横梁组件和插接管组件固定连接,所述右伸缩件的两端分别与横梁组件和插接管组件固定连接。通过上述方式,本发明所述的伸缩式拖车杠,在不同环境和不同工作状态下,拖车杠可以进行伸长或收缩,从而改变在拖拽方向上的长度,结构简单,操作方便,提高了使用的便利性。(The invention discloses a telescopic trailer bar, comprising: the beam assembly further comprises an inserting pipe assembly, a telescopic connecting assembly and an adjusting assembly for adjusting the telescopic amount of the telescopic connecting assembly, one end of the telescopic connecting assembly is fixedly connected with the beam assembly, and the other end of the telescopic connecting assembly is fixedly connected with the inserting pipe assembly; the telescopic connection assembly comprises a left telescopic piece and a right telescopic piece which are symmetrically arranged, two ends of the left telescopic piece are fixedly connected with the beam assembly and the insertion pipe assembly respectively, and two ends of the right telescopic piece are fixedly connected with the beam assembly and the insertion pipe assembly respectively. Through the mode, the telescopic trailer bar can be extended or contracted under different environments and different working states, so that the length in the dragging direction is changed, the structure is simple, the operation is convenient, and the use convenience is improved.)

1. A telescoping tow bar comprising: the beam assembly is characterized by further comprising an inserting pipe assembly, a telescopic connecting assembly and an adjusting assembly for adjusting the telescopic amount of the telescopic connecting assembly, wherein one end of the telescopic connecting assembly is fixedly connected with the beam assembly, and the other end of the telescopic connecting assembly is fixedly connected with the inserting pipe assembly;

the telescopic connection assembly comprises a left telescopic piece and a right telescopic piece which are symmetrically arranged, two ends of the left telescopic piece are fixedly connected with the beam assembly and the insertion pipe assembly respectively, and two ends of the right telescopic piece are fixedly connected with the beam assembly and the insertion pipe assembly respectively.

2. The telescopic trailer bar of claim 1, wherein the left telescopic member comprises an upper left connecting rod, a lower left connecting rod and a U-shaped hinged seat, one end of the upper left connecting rod is connected with the U-shaped hinged seat through a pin, the other end of the upper left connecting rod is hinged with the upper left hinged seat, the upper left hinged seat is fixedly connected with the cross beam assembly, one end of the lower left connecting rod is connected with the U-shaped hinged seat through a pin, the other end of the lower left connecting rod is hinged with the lower left hinged seat, and the lower left hinged seat is fixedly connected with the plug pipe assembly.

3. The telescopic trailer bar of claim 2, wherein the right telescopic member comprises an upper right connecting rod, a lower right connecting rod and the U-shaped hinged seat, one end of the upper right connecting rod is connected with the U-shaped hinged seat through a pin, the other end of the upper right connecting rod is hinged with the upper right hinged seat, the upper right hinged seat is fixedly connected with the beam assembly, one end of the lower right connecting rod is connected with the U-shaped hinged seat through a pin, the other end of the lower right connecting rod is hinged with the lower right hinged seat, and the lower right hinged seat is fixedly connected with the plug tube assembly.

4. The telescopic tow bar of claim 3, wherein the adjustment assembly comprises an adjustment threaded pipe, a left-handed screw and a right-handed screw, one end of the left-handed screw is in threaded connection with the adjustment threaded pipe, the other end of the left-handed screw is in hinged connection with a left hinged seat, the left hinged seat is fixedly connected with an upper left connecting rod, one end of the right-handed screw is in threaded connection with the adjustment threaded pipe, the other end of the right-handed screw is in hinged connection with a right hinged seat, and the right hinged seat is fixedly connected with an upper right connecting rod.

5. The telescoping tow bar of claim 1, wherein the connector assembly comprises a connector tube and a reinforcing collar disposed about one end of the connector tube, the connector tube having a latch aperture.

6. The telescoping tow bar of claim 3, wherein the cross member assembly includes a cross member and L-shaped connecting plates fixedly connected to opposite ends of the cross member, the cross member being fixedly connected to the upper left and upper right hinged mounts, respectively.

7. The telescoping tow bar of claim 4, wherein the adjustment threaded tube is machined from a hexagonal rod.

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a telescopic trailer bar.

Background

The traditional trailer lever is formed by connecting three iron bars to form a hard tow lever, and is used for dragging a vehicle which cannot normally run to advance.

Traditional trailer thick stick is fixed dragging the ascending length of side, can't carry out length control, but can adjust the front truck and the distance between the vehicle that is dragged according to multiple factors such as the size of vehicle and road conditions sometimes, traditional trailer thick stick can't satisfy, needs improve.

Disclosure of Invention

The invention mainly solves the technical problem of providing the telescopic trailer lever which is simple in structure, convenient to operate, convenient to adjust the length of the trailer lever in the dragging direction and improved in use convenience.

In order to solve the technical problems, the invention adopts a technical scheme that: there is provided a telescopic tow bar comprising: the beam assembly further comprises an inserting pipe assembly, a telescopic connecting assembly and an adjusting assembly for adjusting the telescopic amount of the telescopic connecting assembly, one end of the telescopic connecting assembly is fixedly connected with the beam assembly, and the other end of the telescopic connecting assembly is fixedly connected with the inserting pipe assembly;

the telescopic connection assembly comprises a left telescopic piece and a right telescopic piece which are symmetrically arranged, two ends of the left telescopic piece are fixedly connected with the beam assembly and the insertion pipe assembly respectively, and two ends of the right telescopic piece are fixedly connected with the beam assembly and the insertion pipe assembly respectively.

In a preferred embodiment of the invention, the left telescopic part comprises an upper left connecting rod, a lower left connecting rod and a U-shaped hinge seat, one end of the upper left connecting rod is connected with the U-shaped hinge seat through a pin, the other end of the upper left connecting rod is connected with the upper left hinge seat in a hinged manner, the upper left hinge seat is fixedly connected with the beam assembly, one end of the lower left connecting rod is connected with the U-shaped hinge seat through a pin, the other end of the lower left connecting rod is connected with the lower left hinge seat in a hinged manner, and the lower left hinge seat is fixedly connected with the splicing pipe assembly.

In a preferred embodiment of the present invention, the right telescopic member includes a right upper connecting rod, a right lower connecting rod and the U-shaped hinge seat, one end of the right upper connecting rod is connected to the U-shaped hinge seat through a pin, the other end of the right upper connecting rod is connected to the right upper hinge seat in a hinged manner, the right upper hinge seat is fixedly connected to the beam assembly, one end of the right lower connecting rod is connected to the U-shaped hinge seat through a pin, the other end of the right lower connecting rod is connected to the right lower hinge seat in a hinged manner, and the right lower hinge seat is fixedly connected to the insertion tube assembly.

In a preferred embodiment of the present invention, the adjusting assembly includes an adjusting threaded pipe, a left-handed screw and a right-handed screw, one end of the left-handed screw is in threaded connection with the adjusting threaded pipe, the other end of the left-handed screw is hinged to a left hinge seat, the left hinge seat is fixedly connected to the upper left connecting rod, one end of the right-handed screw is in threaded connection with the adjusting threaded pipe, the other end of the right-handed screw is hinged to a right hinge seat, and the right hinge seat is fixedly connected to the upper right connecting rod.

In a preferred embodiment of the invention, the plug pipe assembly comprises a plug pipe and a reinforcing neck ring sleeved at one end of the plug pipe, and the plug pipe is provided with a plug pin hole.

In a preferred embodiment of the invention, the beam assembly comprises a beam and L-shaped connecting plates fixedly connected to two ends of the beam, and the beam is fixedly connected with the upper left hinged seat and the upper right hinged seat respectively.

In a preferred embodiment of the present invention, the adjusting threaded pipe is machined from a hexagonal rod.

The invention has the beneficial effects that: according to the telescopic trailer bar disclosed by the invention, the trailer bar can be extended or contracted under different environments and different working states, so that the length in the dragging direction is changed, the structure is simple, the operation is convenient, and the use convenience is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic view of a preferred embodiment of a telescoping tow bar according to the present invention;

FIG. 2 is a schematic structural view of the cross-beam assembly of FIG. 1;

FIG. 3 is a schematic structural view of the stinger assembly of FIG. 1;

fig. 4 is a schematic structural view of the U-shaped hinge base of fig. 1.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

It should be noted that these drawings are simplified schematic views, and only the basic structure of the present invention is described in a schematic manner, and therefore, only the configuration related to the present invention is shown.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, an embodiment of the present invention includes:

a telescoping tow bar comprising: the beam assembly 10 further comprises a plug pipe assembly 20, a telescopic connecting assembly and an adjusting assembly 40 for adjusting the telescopic amount of the telescopic connecting assembly, wherein one end of the telescopic connecting assembly is fixedly connected with the beam assembly 10, and the other end of the telescopic connecting assembly is fixedly connected with the plug pipe assembly 20.

The telescopic connecting assembly comprises a left telescopic piece 31 and a right telescopic piece 32 which are symmetrically arranged, two ends of the left telescopic piece 31 are fixedly connected with the beam assembly 10 and the splicing pipe assembly 20 respectively, and two ends of the right telescopic piece 32 are fixedly connected with the beam assembly 10 and the splicing pipe assembly 20 respectively; when using, beam assembly 10 passes through bolted connection with the vehicle, and grafting pipe assembly 20 is connected with the trailer, and according to factors such as the size of actual vehicle and road conditions, operation adjusting part 40 makes left extensible member 31 and right extensible member 32 extend or contract simultaneously to change the distance between beam assembly 10 and the grafting pipe assembly 20, finally realize adjusting the distance between front truck and the back car, improved the convenience of using.

The left telescopic part 31 comprises an upper left connecting rod 311, a lower left connecting rod 312 and a U-shaped hinged seat 313, one end of the upper left connecting rod 311 is connected with the U-shaped hinged seat 313 through a pin shaft, the other end of the upper left connecting rod 311 is connected with an upper left hinged seat 314 in a hinged mode, the upper left connecting rod 311 is connected with the upper left hinged seat 314 through a pin shaft, the upper left hinged seat 314 is fixedly connected with the beam assembly 10, one end of the lower left connecting rod 312 is connected with the U-shaped hinged seat 313 through a pin shaft, the other end of the lower left connecting rod 312 is connected with a lower left hinged seat 315 in a hinged mode, the lower left connecting rod 312 is connected with the lower left hinged seat 315 through a pin shaft, the lower left hinged seat 315 is fixedly connected with the plug pipe assembly 20, the structure is simple, the installation is convenient, and the upper left.

The right telescopic part 32 comprises an upper right connecting rod 321, a lower right connecting rod 322 and the U-shaped hinged seat 313, one end of the upper right connecting rod 321 is connected with the U-shaped hinged seat 313 through a pin shaft, the other end of the upper right connecting rod is hinged with an upper right hinged seat 323, the upper right hinged seat 323 is connected with the upper right connecting rod 321 through a pin shaft, the upper right hinged seat 323 is fixedly connected with the beam assembly 10, one end of the lower right connecting rod 322 is connected with the U-shaped hinged seat 313 through a pin shaft, the other end of the lower right connecting rod 322 is hinged with a lower right hinged seat 324, the lower right hinged seat 324 is connected with the lower right connecting rod 322 through a pin shaft, and the lower right hinged seat 324 is fixedly connected with the splicing pipe assembly 10; simple structure, simple to operate, upper right connecting rod 321 and right connecting rod 322 all can follow the articulated seat 313 of U-shaped and rotate.

The adjusting assembly 40 comprises an adjusting threaded pipe 41, a left-handed screw 42 and a right-handed screw 43, one end of the left-handed screw 42 is in threaded connection with the adjusting threaded pipe 41, the other end of the left-handed screw is hinged with a left hinged seat 44, the left hinged seat 44 is fixedly connected with a left upper connecting rod 311, one end of the right-handed screw 43 is in threaded connection with the adjusting threaded pipe 41, the other end of the right-handed screw is hinged with a right hinged seat 45, and the right hinged seat 45 is fixedly connected with a right upper connecting rod 321; rotatory regulation screwed pipe 41, make levogyration screw rod 42 and dextrorotation screw rod 43 remove to opposite direction, thereby promote upper left connecting rod 311 and upper right connecting rod 321 and rotate to the outside, thereby make the distance between crossbeam subassembly 10 and the grafting pipe subassembly 20 reduce, reached and reduced the length of trailer thick stick in the direction of pulling, reverse rotation regulation screwed pipe 41, make levogyration screw rod 42 and dextrorotation screw rod 43 remove to relative direction, thereby pull upper left connecting rod 311 and upper right connecting rod 321 and rotate to the inside, thereby make the distance increase between crossbeam subassembly 10 and the grafting pipe subassembly 20, reached increase the length of trailer thick stick in the direction of pulling, moreover, the steam generator is simple in structure, and convenient operation.

The inserting pipe assembly 20 comprises an inserting pipe 21 and a reinforcing collar 22 sleeved at one end of the inserting pipe 21, a bolt hole 23 is formed in the inserting pipe 21, a pull rod of the trailer stretches into the inserting pipe 21, a positioning pin shaft is inserted into the bolt hole 23, so that the inserting pipe 21 and the pull rod of the trailer are fixed, operation is convenient, and connection firmness is high.

The beam assembly 10 comprises a beam 11 and L-shaped connecting plates 12 fixedly connected to two ends of the beam, the beam 11 is fixedly connected with an upper left hinged seat 314 and an upper right hinged seat 323 respectively, and the L-shaped connecting plates 12 are connected with a vehicle through bolts, so that the convenience of installation and disassembly is improved.

The adjusting threaded pipe 41 is formed by processing a hexagonal rod, an open end wrench is convenient to use to rotate the adjusting threaded pipe 41, and operation is convenient.

In conclusion, the telescopic trailer lever disclosed by the invention is simple in structure and convenient to operate, the length of the trailer lever in the dragging direction is convenient to adjust, and the use convenience is improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.