CN211730956U - Trailer device and vehicle - Google Patents

Abstract

The utility model relates to a trailer device and a vehicle, wherein the trailer device is arranged on the vehicle and comprises a trailer unit, a locking unit and an elastic return unit; the trailer unit is provided with a rotating end which is rotatably arranged on the vehicle and a trailing arm which is fixedly connected with the rotating end, and the trailing arm can extend or retract relative to the vehicle along with the rotation of the rotating end; the locking unit can be arranged on the vehicle in a sliding mode, the locking unit can be matched with the locking part which is constructed on the rotating end, so that the rotation of the rotating end can be locked, the locking unit bears the external force, and the rotating end can be locked or unlocked by the locking part due to the sliding of the locking unit; the elastic return unit is positioned between the locking unit and the vehicle and can output external force for the locking part to lock the rotating end due to the elastic return of the elastic return unit. The utility model discloses a trailer device can make the trailing arm stretch out for the vehicle when using, and withdraws for the vehicle when not using to can save dismouting trailer device's trouble, also do not influence the vehicle outward appearance simultaneously.

Description

Trailer device and vehicle

Technical Field

The utility model relates to a vehicle spare part technical field, in particular to trailer device, simultaneously, the utility model discloses still relate to a vehicle with this trailer device.

Background

Passenger vehicles typically have a trailer device mounted at the rear of the vehicle to couple to other vehicles for towing either the other vehicles or themselves. At present, the trailer device usually comprises two parts of a bracket and a trailer arm, wherein the bracket is usually screwed on a vehicle body longitudinal beam, and the trailer arm in the prior art comprises two forms. A trailer arm is fixed on a bracket by using bolts; the other is fixed on the bracket by a locking device. However, the trailer arm needs to be mounted when the trailer device with the two structures is used, and the trailer arm needs to be dismounted when the trailer device is not used, so that the trailer device wastes time and labor. In addition, the placement position of the trailer arm needs to be considered after the trailer arm is detached, so that abnormal sound is prevented from being generated in the driving process. In addition, current trailer device can influence whole car length after the assembly, and if take place to knock into the back, can cause great injury to the back car, also influences the vehicle outward appearance simultaneously.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a trailer device, which has a trailing arm that can be extended or retracted relative to a vehicle without disassembly and assembly.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a trailer arrangement for location on a vehicle, the trailer arrangement comprising:

the trailer unit is provided with a rotating end which is rotatably arranged on the vehicle and a trailing arm which is fixedly connected with the rotating end, and the trailing arm can extend or retract relative to the vehicle along with the rotation of the rotating end;

a locking unit slidably provided on the vehicle, the locking unit having a locking portion engageable with an engagement portion configured on the rotation end to lock rotation of the rotation end and receiving an external force, the locking unit being slidable to lock or unlock the rotation end by the locking portion;

and the elastic return unit is positioned between the locking unit and the vehicle and is configured to be elastically returned by itself so as to output the external force for locking the rotating end by the locking part.

Further, the locking unit is arranged on the vehicle in a sliding mode along the axial direction of the rotating end.

Furthermore, the matching portion is slots which are arranged along the axial extension of the rotating end, the slots are oppositely arranged on the rotating end, the slots are opened at one end of the rotating end, the locking portion is an insertion block which corresponds to the slots and is constructed on the locking unit, and the insertion block can be inserted into the slots along with the sliding of the locking unit.

Furthermore, a rotating shaft is fixedly connected to the vehicle, the rotating end is sleeved with a sleeve on the rotating shaft in a rotating mode, the locking unit comprises a shaft pin penetrating through the rotating shaft, the insert block is fixedly connected to the side wall of the shaft pin, a sliding groove is formed in the rotating shaft and is axially arranged along the rotating shaft, and the insert block is arranged in the sliding groove in a sliding mode.

Furthermore, both ends of the shaft pin extend out of the rotating shaft, the elastic return piece is a spring sleeved on the shaft pin, and both ends of the spring are respectively abutted against the rotating shaft and the shaft pin.

Furthermore, a pull wire is connected to the pivot pin, and the pull wire can be pulled by the outside to output the external force for releasing the locking of the locking part.

Furthermore, a pull wire handle is arranged at the other end of the pull wire relative to the end of the pull wire connected with the shaft pin.

Further, be equipped with the mounting bracket on the vehicle, the mounting bracket has two mounting panels of interval arrangement, the locking unit crosses two the mounting panel setting, the rotation end is installed in two on the mounting panel.

Compared with the prior art, the utility model discloses following advantage has:

(1) the trailer device of the utility model is fixed on the vehicle all the time, and the rotating end which is arranged on the vehicle in a rotatable way can be arranged, so that the trailing arm which is fixedly connected with the rotating end can be extended out relative to the vehicle when in use, and can be retracted relative to the vehicle when not in use, thereby saving the trouble of dismounting the trailer device and simultaneously not influencing the appearance of the vehicle relative to the prior art; in addition, set up locking unit and elasticity return unit then can keep the trailing arm to stretch out or the stability of withdrawing the state, can improve the stability in use that uses the trailing arm to can effectively prevent to take place the abnormal sound in the driving, and then make this trailer device have better result of use.

(2) The matching part adopts a slot, and the locking part adopts an insertion block, so that the structure is simple, and the design and implementation are convenient.

(3) Through set up the spout in the pivot to make the inserted block slide and locate in the spout, can prevent that the pivot from rotating, thereby can improve the trailing arm and stretch out or the stability of withdrawing the state.

(4) The two inserting blocks are arranged, so that the stability of keeping the extension or retraction state of the trailing arm is improved.

(5) The elastic return piece adopts a spring, so that the structure is simple, and the design and implementation are convenient.

(6) The pull wire is arranged, so that the shaft pin can be conveniently pulled, and the locking of the rotation end is released.

Another object of the present invention is to provide a vehicle, wherein the trailer device is disposed on the vehicle.

Further, the trailer device is arranged on a longitudinal beam of the vehicle.

The vehicle, through setting up as above the trailer device, can be convenient for pull to can improve the result of use of this vehicle.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a state diagram of a trailer device according to a first embodiment of the present invention retracted relative to a vehicle;

fig. 2 is a diagram illustrating a state in which the trailer apparatus according to the first embodiment of the present invention is extended relative to the vehicle;

fig. 3 is an exploded view of a trailer device according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a trailer unit according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of the trailer unit according to the first embodiment of the present invention from another view angle;

fig. 6 is a schematic structural view of a rotating shaft according to a first embodiment of the present invention;

fig. 7 is a schematic structural view of a shaft pin according to a first embodiment of the present invention;

fig. 8 is a schematic structural view of a split nut according to a first embodiment of the present invention;

FIG. 9 is a view showing an assembled state of the pull cord and the pull cord handle according to the first embodiment of the present invention;

description of reference numerals:

1-beam, 2-connecting plate, 3-sleeve, 4-mounting plate, 5-spring, 6-split nut, 7-trailing arm, 8-axle pin, 9-stay wire, 10-stay wire handle, 11-rotating shaft, 12-gasket, 13-stay wire bracket and 14-plastic sleeve;

301-slot, 801-plug block, 802-shoulder, 1101-reduced diameter section, 1102-chute.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The embodiment relates to a trailer device, which is arranged on a vehicle and mainly comprises a trailer unit, a locking unit and an elastic return unit on the whole structure. The trailer unit is provided with a rotating end which is rotatably arranged on the vehicle and a trailing arm which is fixedly connected with the rotating end, and the trailing arm can extend out or retract relative to the vehicle along with the rotation of the rotating end.

The locking unit is arranged on the vehicle in a sliding mode and is provided with a locking part, the locking part can be matched with a matching part constructed on the rotating end to lock the rotation of the rotating end and bear external force, and the locking unit can lock the rotating end or release the locking by the locking part due to self sliding. The elastic return unit is positioned between the locking unit and the vehicle, and the elastic return unit is configured to output an external force for the locking part to lock the rotating end due to the elastic return of the elastic return unit.

The trailer device of the present embodiment is always fixed to a vehicle, and by providing the rotating end rotatably disposed on the vehicle, the trailing arm fixedly connected to the rotating end can be extended out relative to the vehicle when in use, and retracted relative to the vehicle when not in use, so that compared with the prior art, the trouble of disassembling and assembling the trailer device can be saved, and the appearance of the vehicle is not affected at the same time; in addition, set up locking unit and elasticity return unit then can keep the trailing arm to stretch out or the stability of withdrawing the state to can improve the stability in use of trailing arm, also can effectively prevent that the trailing arm from taking place the abnormal sound in the driving, and then make this trailer device have better result of use.

Based on the above design concept, an exemplary structure of the trailer apparatus of the present embodiment is shown in fig. 1 to 3, wherein the trailer apparatus is specifically mounted on a cross beam 1 of a vehicle, and a mounting frame is fixedly connected to the cross beam 1. The specific structure of the mounting frame is shown in fig. 1, and the mounting frame comprises a connecting plate 2 fixedly connected with a cross beam 1 and two mounting plates 4 arranged at intervals, wherein two ends of one mounting plate 4 are fixedly connected with the connecting plate 2 and the cross beam 1 respectively, and the other mounting plate 4 is integrally formed with the connecting plate 2. In addition, for the trailing arm 7 is convenient to use when stretching out, be the contained angle setting between two mounting panels 4 and the crossbeam 1 of this embodiment.

The trailer unit has a specific structure as shown in fig. 4 and 5, the rotating end is specifically the sleeve 3, the engaging portion is specifically a slot 301 extending along the axial direction of the sleeve 3, the slot 301 is two slots oppositely disposed on two sides of the sleeve 3, and the slot 301 is opened at one end of the sleeve 3 for the insertion block 801 to enter. Of course, instead of two slots 301, a plurality of slots 301 may be provided. The trailing arm 7 of this embodiment is a U-shaped structure formed by bending a round bar, and one end of the U-shaped structure is fixedly connected to the outer wall of the sleeve 3.

In order to facilitate the rotation of the sleeve 3 on the mounting bracket, a rotating shaft 11 is fixedly connected to the mounting bracket, and the rotating shaft 11 is configured as shown in fig. 6, and has a radially outwardly protruding flange formed at one end thereof, a reduced diameter end formed at the other end thereof, and an external thread formed on the reduced diameter end. In addition, be formed with the mounting hole that supplies pivot 11 to wear to establish respectively on two mounting panels 4 to this installation for the reducing end passes two mounting panels 4 in proper order, until flange and one of them mounting panel 4 butt, rethread nut and reducing end spiro union can realize the setting of pivot 11 on the mounting bracket.

In addition, in order to adapt to the unlocking mode of the locking unit described below, as shown in fig. 6, a through hole is formed in the rotating shaft 11, and a sliding groove 1102 is formed in the rotating shaft 11 and arranged along the axial direction of the rotating shaft 11, and the sliding grooves 1102 are two oppositely arranged. Further, the sliding slot 1102 is disposed at an end of the rotating shaft 11 where the flange is formed, and is open.

As shown in fig. 7 in conjunction with fig. 1 and 3, for the convenience of manufacturing, the locking unit of the present embodiment is slidably disposed on the vehicle along the axial direction of the sleeve 3, and specifically includes a shaft pin 8 passing through the rotating shaft 11 via the through hole, and both ends of the shaft pin 8 extend out of the rotating shaft 11. Further, as shown in fig. 7, the shaft pin 8 has an external thread formed at one end thereof and a shoulder 802 formed at the other end thereof to be in contact with the flange of the rotating shaft 11.

The locking part is specifically an insertion block 801 fixedly connected to the side wall of the shaft pin 8 corresponding to the slot 301, and the insertion block 801 can be inserted into the slot 301 along with the sliding of the shaft pin 8. The two insertion blocks 801 are provided on both sides of the shaft pin 8 corresponding to the sliding grooves 1102. In addition, to prevent the axle pin 8 from rotating, the insertion block 801 is slidably disposed in the sliding slot 1102, so as to effectively prevent the sleeve 3 from rotating, thereby maintaining the stability of the extending or retracting state of the trailing arm 7.

Referring to fig. 1 and fig. 2, the elastic return element of the present embodiment is a spring 5 sleeved on the shaft pin 8, and two ends of the spring 5 are respectively abutted against the rotating shaft 11 and the shaft pin 8. Specifically, the spring 5 is sleeved on the shaft pin 8, two gaskets 12 respectively located at two ends of the spring 5 are sleeved on the shaft pin 8, and the open nut 6 shown in fig. 8 is screwed on one end of the shaft pin 8 with the external thread, so that not only can the arrangement of the shaft pin on the mounting frame be realized, but also two ends of the spring 5 are respectively abutted to the rotating shaft 11 and the shaft pin 8 through the gaskets 12.

In addition, in order to facilitate releasing the locking of the sleeve 3 by the locking part, as shown in fig. 9 and fig. 1, a pulling wire 9 is connected to the shaft pin 8, the pulling wire 9 can be pulled by the outside to drive the shaft pin 8 to slide, so that the insertion block 801 can be pulled out from the insertion slot 301, and the trailing arm 7 can be rotated around the rotating shaft 11 by receiving the external force, thereby the trailing arm 7 can be extended relative to the vehicle when in use, and can be retracted relative to the vehicle when not in use.

In addition, in order to conveniently arrange the stay wires 9, the stay wire bracket 13 is fixedly connected to the cross beam 1, the sleeve shown in fig. 9 is clamped on the stay wire bracket 13, and the stay wires 9 penetrate through the sleeve, so that the stay wires 9 can be prevented from being scratched by the stay wire bracket 13. In addition, a pull handle 10 is provided at the other end of the pull wire 9 with respect to the shaft pin 8, and the pull handle 10 and the shaft pin 8 are provided on the same side of the beam 1.

Finally, it should be noted that the locking unit of the present embodiment may be disposed on the vehicle along the radial direction of the sleeve 3 in addition to being slidably disposed on the vehicle along the axial direction of the sleeve 3, at this time, the insertion groove 301 needs to be disposed along the radial direction of the sleeve 3, and other related structures may be changed based on the conventional technical means in the art, and detailed description is omitted here.

Based on the above overall description, when the trailer device of the present embodiment is in use, the pull handle 10 is pulled first, so that the shaft pin 8 slides and the insertion block 801 is pulled out from the insertion slot 301; the trailing arm 7180 is rotated again to be extended relative to the vehicle, and then the pulling wire 9 is released to be reinserted into the slot 301 under the elastic reset of the spring 5, so that the trailing arm 7 is stably extended out of the vehicle to be connected with the rear vehicle to tow the vehicle. When not in use, the pull handle 10 is pulled again and the trailing arm 7180 ° is reversed, and the pull 9 is released, so that the insert 801 locks the rotation of the sleeve 3 again, and the trailing arm 7 is stably in the retracted state.

Example two

The present embodiment relates to a vehicle, wherein a trailer device according to the first embodiment is disposed on the vehicle, and the trailer device is specifically disposed on a cross beam 1 of the vehicle.

The vehicle of the embodiment can be conveniently dragged by arranging the trailer device according to the first embodiment, so that the using effect of the vehicle can be improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A trailer device provided on a vehicle, characterized in that the trailer device comprises:

the trailer unit is provided with a rotating end which is rotatably arranged on the vehicle, and a trailing arm (7) which is fixedly connected with the rotating end, and the trailing arm (7) can extend or retract relative to the vehicle along with the rotation of the rotating end;

a locking unit slidably provided on the vehicle, the locking unit having a locking portion engageable with an engagement portion configured on the rotation end to lock rotation of the rotation end and receiving an external force, the locking unit being slidable to lock or unlock the rotation end by the locking portion;

and the elastic return unit is positioned between the locking unit and the vehicle and is configured to be elastically returned by itself so as to output the external force for locking the rotating end by the locking part.

2. The trailer apparatus as claimed in claim 1, wherein: the locking unit is arranged on the vehicle in a sliding mode along the axial direction of the rotating end.

3. The trailer apparatus as claimed in claim 2, wherein: the cooperation portion is for following slot (301) that the axial extension of rotation end set up, just slot (301) be for setting up relatively in rotate two on the end, slot (301) in the one end opening of rotation end, locking portion is for corresponding to slot (301) structure is in inserted block (801) on the locking unit, just inserted block (801) along with the slip of locking unit can insert and arrange in slot (301).

4. The trailer apparatus of claim 3, wherein: the automobile locking device is characterized in that a rotating shaft (11) is fixedly connected onto the automobile, the rotating end is sleeved with a sleeve (3) on the rotating shaft (11) in a rotating mode, the locking unit comprises a shaft pin (8) penetrating through the rotating shaft (11), an insertion block (801) is fixedly connected onto the side wall of the shaft pin (8), a sliding groove (1102) is formed in the rotating shaft (11) and axially arranged along the rotating shaft (11), and the insertion block (801) is slidably arranged in the sliding groove (1102).

5. The trailer apparatus as claimed in claim 4, wherein: the two ends of the shaft pin (8) extend out of the rotating shaft (11), the elastic return piece is a spring (5) sleeved on the shaft pin (8), and the two ends of the spring (5) are respectively connected with the rotating shaft (11) and the shaft pin (8) in a butting mode.

6. The trailer apparatus of claim 5, wherein: the shaft pin (8) is connected with a pull wire (9), and the pull wire (9) can be pulled by the outside to output the external force for releasing the locking of the locking part.

7. The trailer apparatus of claim 6, wherein: and a pull wire handle (10) is arranged at the other end of the pull wire (9) relative to the end of the pull wire (9) connected with the shaft pin (8).

8. The trailer apparatus as claimed in any one of claims 1 to 7, wherein: the vehicle is provided with a mounting rack, the mounting rack is provided with two mounting plates (4) which are arranged at intervals, the locking unit transversely penetrates through the two mounting plates (4), and the rotating end is mounted on the two mounting plates (4).

9. A vehicle, characterized in that: a trailer arrangement as claimed in any one of claims 1 to 8 provided on said vehicle.

10. The vehicle according to claim 9, characterized in that: the trailer device is arranged on a cross beam (1) of the vehicle.

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