CN220682385U

CN220682385U - Two-wheel linkage steering mechanism of trailer

Info

Publication number: CN220682385U
Application number: CN202321737618.7U
Authority: CN
Inventors: 胡晓校
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2024-03-29
Anticipated expiration: 2033-07-04

Abstract

The utility model discloses a two-wheel linkage steering mechanism of a trailer, which relates to the field of trailers, wherein a second rotating shaft is fixed at the upper end of a connecting rod, the second rotating shaft is spliced in a third positioning sleeve, the front end of the connecting rod is connected with a connecting frame, a towing bar is movably connected in the connecting frame, a first vertical connecting rod, a second vertical connecting rod and a third vertical connecting rod are connected on a transverse connecting rod through screws and nuts, a left rear wheel frame and a right rear wheel frame are arranged at the other end of the bottom of a folding frame, a left rear wheel and a right rear wheel are respectively connected in the left rear wheel frame and the right rear wheel frame through connecting screws, and an electric driving device is arranged behind the folding frame. The novel trailer has the advantages that the structural design is reasonable, the operation is simple, the use is convenient, the left and right front wheels are in linkage steering structural design, when the forward motion of the trailer encounters an uneven road, the left and right front wheels are in steering consistency, the transportation cannot be influenced, the automatic reset of the towing bar can be realized, and the use requirements of people are met.

Description

Two-wheel linkage steering mechanism of trailer

Technical field:

the utility model relates to a two-wheel linkage steering mechanism of a trailer, and belongs to the technical field of trailers.

The background technology is as follows:

at present, front wheels are fixed at the left bottom and the right bottom of the front part of a frame through universal wheels, the front wheels are not linked around the existing product, when a trailer handle is pulled to drive the trailer to move forwards, the front wheels are turned left and right due to uneven outdoor roads, so that the front wheel frames are damaged to influence transportation, the existing product hauling bars cannot realize automatic reset, and can only be reset on the clamping buckles through manual fixing, so that the operation is complex, and the use requirements of people are not met.

The utility model comprises the following steps:

aiming at the problems, the utility model aims to provide a two-wheel linkage steering mechanism of a trailer.

The utility model relates to a two-wheel linkage steering mechanism of a trailer, which comprises a folding frame, a front positioning rod, a left front wheel frame, a right front wheel frame, a left front wheel, a right front wheel, a rotating shaft I, a vertical connecting rod II, a vertical connecting rod III, a connecting rod, a rotating shaft II, a connecting frame, a towing bar, a transverse connecting rod, a left rear wheel frame, a right rear wheel frame, a left rear wheel, a right rear wheel and an electric driving device.

Preferably, the first positioning sleeve, the second positioning sleeve and the third positioning sleeve are respectively internally provided with an upper connecting sleeve and a lower connecting sleeve, the first rotating shaft and the second rotating shaft are inserted on the inner walls of the upper connecting sleeve and the lower connecting sleeve in the first positioning sleeve, the second positioning sleeve and the third positioning sleeve, and are inserted in the positioning holes of the side parts above the first rotating shaft and the second rotating shaft through positioning pins to limit up and down, and a decorative cover is arranged above the positioning holes.

Preferably, the front sides of the left front wheel frame and the right front wheel frame are respectively fixed with a brake piece.

As the preference, the mobile jib of towbar in install the torsional spring, and pass through the mobile jib connecting hole of towbar and the connecting hole and the nut of torsional spring are fixed, the upper boom of torsional spring is fixed a position on the locating wall of the mobile jib locating hole of towbar, the lower beam of torsional spring is fixed a position at the top of the connecting rod at link rear, the torsional spring is L shape structural design, when the downward pulling towbar, the upper boom of torsional spring moves down, then pulls the trailer and moves forward, after reaching the purpose, release the towbar, the torsional spring in the towbar resets and drives the towbar automatic re-setting, it is very convenient to use, the towbar is from top to bottom automatic re-setting and is spacing through the link, through axis of rotation second on the connecting rod at link rear reaches the steering effect.

Preferably, a battery and a controller are arranged in the electric driving device, and the electric driving device is connected with a motor hub of the right rear wheel through a power line and controlled by a remote controller.

The utility model has the beneficial effects that: the novel trailer has the advantages that the structural design is reasonable, the operation is simple, the use is convenient, the left and right front wheels are in linkage steering structural design, when the forward motion of the trailer encounters an uneven road, the left and right front wheels are in steering consistency, the transportation cannot be influenced, the automatic reset of the towing bar can be realized, and the use requirements of people are met.

Description of the drawings:

for ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a schematic diagram of an electric driving apparatus according to the present utility model;

FIG. 4 is an exploded view of the installation of the tow bar of the present utility model;

FIG. 5 is a schematic view of the structure of the present utility model after the tow bar is installed;

FIG. 6 is an exploded view of the front wheel of the present utility model;

fig. 7 is a partial bottom view of the present utility model.

1-folding a frame; 2-a front positioning rod; 201, positioning sleeve I; 202, positioning sleeve II; 203, positioning sleeve III; 204-upper connecting sleeve; 205-lower connecting sleeve; 206-a decorative cover; 3-left front wheel frame; 4-right front wheel frame; 5-left front wheel; 6-right front wheel; 7-rotating shaft I; 8-a first vertical link; 9-a second vertical link rod; 10-a vertical link III; 11-connecting rods; 12-rotating a shaft II; 13-a connecting frame; 14-a towing bar; 141-a torsion spring; 1411-upper pole; 1412—lower bar; 15-transverse links; 16-left rear wheel frame; 17-right rear wheel carrier; 18-left rear wheel; 19-right rear wheel; 20-an electric drive; 2001-battery; 2002-controller; 2003-a power line; 21-brake piece.

The specific embodiment is as follows:

as shown in fig. 1 to 7, the present embodiment adopts the following technical scheme: the folding bicycle comprises a folding bicycle frame 1, a front positioning rod 2, a left front wheel frame 3, a right front wheel frame 4, a left front wheel 5, a right front wheel 6, a first rotating shaft 7, a first vertical link rod 8, a second vertical link rod 9, a third vertical link rod 10, a connecting rod 11, a second rotating shaft 12, a connecting frame 13, a towing rod 14, a transverse link rod 15, a left rear wheel frame 16, a right rear wheel frame 17, a left rear wheel 18, a right rear wheel 19 and an electric driving device 20, wherein the front positioning rod 2 is arranged at one end of the bottom of the folding bicycle frame 1, a first positioning sleeve 201, a second positioning sleeve 202 and a third positioning sleeve 203 are fixed at the front side of the front positioning rod 2, the left front wheel frame 3 and the right front wheel frame 4 are respectively connected with the left front wheel 5 and the right front wheel 6 through connecting screws, the first rotating shaft 7 is fixed at the upper center positions of the left front wheel frame 3 and the right front wheel frame 4, and peg graft respectively in position sleeve one 201 and position sleeve two 202, left front wheel frame 3 and right front wheel frame 4's rear lateral part central point put and are fixed with vertical link one 8 and vertical link two 9 respectively, vertical link three 10 is fixed on the connecting rod 11 in middle part, the upper end of connecting rod 11 is fixed with axis of rotation two 12, axis of rotation two 12 peg graft in position sleeve three 203, the front end of connecting rod 11 is connected with link 13, swing joint has tow bar 14 in the link 13, vertical link one 8, vertical link two 9 and vertical link three 10 pass through screw rod and nut and connect on transverse link 15, left back wheel frame 16 and right back wheel frame 17 are installed to the bottom other end of folding frame 1, left back wheel frame 16 and right back wheel frame 17 are connected with left back wheel 18 and right back wheel 19 respectively through the connecting screw rod, the rear of folding frame 1 is provided with electric drive 20.

The first positioning sleeve 201, the second positioning sleeve 202 and the third positioning sleeve 203 are respectively internally provided with an upper connecting sleeve 204 and a lower connecting sleeve 205, the first rotating shaft 7 and the second rotating shaft 12 are inserted into the inner walls of the upper connecting sleeve 204 and the lower connecting sleeve 205 in the first positioning sleeve 201, the second positioning sleeve 202 and the third positioning sleeve 203, and are inserted into the positioning holes in the upper side parts of the first rotating shaft 7 and the second rotating shaft 12 through positioning pins to limit up and down, and a decorative cover 206 is arranged above the positioning holes.

The front sides of the left front wheel frame 3 and the right front wheel frame 4 are each fixed with a brake member 21.

The torsional spring 141 is installed in the mobile jib of tow bar 14, and pass through the mobile jib connecting hole of tow bar 14 and the connecting hole of torsional spring 141 and nut 143 are fixed, the upper boom 1411 of torsional spring 141 is fixed in the locating wall of the mobile jib locating hole of tow bar 14, the lower beam 1412 of torsional spring 141 is fixed in the top of connecting rod 11 at link 13 rear, the torsional spring 141 is L-shaped structural design, when pulling tow bar 14 downwards, the upper boom 1411 of torsional spring 141 moves down, then pull the trailer forward motion, after reaching the purpose, release tow bar 14, torsional spring 141 in the tow bar 14 resets and drives tow bar 14 automatic re-setting, it is very convenient to use, the automatic re-setting is spacing through link 13 from top to bottom, through axis of rotation two 12 on the connecting rod 11 at link 13 rear, it turns to the effect to reach.

The electric drive device 20 is provided with a battery 2001 and a controller 2002, and is connected to a motor hub of the right rear wheel 19 via a power line 2003 and controlled by a remote controller.

The use principle of the specific embodiment is as follows: when the pulling rod 14 is pulled, the pulling rod 14 pulls the folding frame 1 to move forwards, when the folding frame runs into a left-right turn, the pulling rod 14 rotates left and right to drive the rotating shaft II 12 on the connecting rod 11 to rotate, meanwhile, the vertical link I8, the vertical link II 9 and the vertical link III 10 are connected through the transverse link 15 to play a linkage role, meanwhile, the left front wheel frame 3 and the right front wheel frame 4 synchronously rotate left or right, and the vertical link I8, the vertical link II 9, the vertical link III 10 and the transverse link 15 swing left and right in the same direction, so that the directions of the left front wheel 5 and the right front wheel 6 are consistent, and wheel frames in the left front wheel frame and the right front wheel frame cannot be damaged due to inconsistent directions in the pulling process.

This concrete embodiment structural design is reasonable, easy operation, and convenient to use, the front wheel adopts the linkage to turn to structural design about, and when the trailer forward motion met the road unevenness, the front wheel turns to unanimously about, can not influence the transportation, and the tow bar can realize automatic re-setting, has satisfied people's user demand.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A two-wheel linkage steering mechanism of a trailer is characterized in that: the folding bicycle comprises a folding bicycle frame (1), a front positioning rod (2), a left front bicycle frame (3), a right front bicycle frame (4), a left front wheel (5), a right front wheel (6), a first rotating shaft (7), a first vertical connecting rod (8), a second vertical connecting rod (9), a third vertical connecting rod (10), a connecting rod (11), a second rotating shaft (12), a connecting frame (13), a towing bar (14), a transverse connecting rod (15), a left rear bicycle frame (16), a right rear bicycle frame (17), a left rear wheel (18), a right rear wheel (19) and an electric driving device (20), wherein one end of the bottom of the folding bicycle frame (1) is provided with the front positioning rod (2), a first positioning sleeve (201), a second positioning sleeve (202) and a third positioning sleeve (203) are fixed on the front side of the front positioning rod (2), the left front bicycle frame (3) and the right front bicycle frame (4) are respectively connected with the left front wheel (5) and the right front wheel (6) through connecting screws, the first rotating shaft (7) are fixed at the center positions above the left front bicycle frame (3) and the right front bicycle frame (4) respectively, the center positions of the rear side parts of the left front wheel frame (3) and the right front wheel frame (4) are respectively fixed with a first vertical connecting rod (8) and a second vertical connecting rod (9), a third vertical connecting rod (10) is fixed on a connecting rod (11) in the middle, the upper end of the connecting rod (11) is fixed with a second rotating shaft (12), the second rotating shaft (12) is inserted into a third positioning sleeve (203), the front end of the connecting rod (11) is connected with a connecting frame (13), a towing rod (14) is movably connected in the connecting frame (13), the first vertical connecting rod (8), the second vertical connecting rod (9) and the third vertical connecting rod (10) are connected onto a transverse connecting rod (15) through screws and nuts, a left rear wheel frame (16) and a right rear wheel frame (17) are arranged at the other end of the bottom of the folding frame (1), a left rear wheel frame (16) and a right rear wheel frame (17) are respectively connected with a left rear wheel (18) and a right rear wheel (19) through connecting screws, and an electric driving device (20) is arranged behind the folding frame (1).

2. A two-wheeled trailer-coupling steering mechanism in accordance with claim 1, wherein: the positioning sleeve I (201), the positioning sleeve II (202) and the positioning sleeve III (203) are internally provided with an upper connecting sleeve (204) and a lower connecting sleeve (205), the two rotating shafts I (7) and the rotating shaft II (12) are inserted into the inner walls of the upper connecting sleeve (204) and the lower connecting sleeve (205) in the positioning sleeve I (201), the positioning sleeve II (202) and the positioning sleeve III (203), and are inserted into the positioning holes on the upper side parts of the two rotating shafts I (7) and the rotating shaft II (12) through positioning pins to limit the upper side and the lower side, and a decorative cover (206) is arranged above the upper connecting sleeve.

3. A two-wheeled trailer-coupling steering mechanism in accordance with claim 1, wherein: the front sides of the left front wheel frame (3) and the right front wheel frame (4) are respectively fixed with a brake piece (21).

4. A two-wheeled trailer-coupling steering mechanism in accordance with claim 1, wherein: the novel structure is characterized in that a torsion spring (141) is arranged in a main rod of the towing bar (14), a screw (142) penetrates through a main rod connecting hole of the towing bar (14) and a connecting hole of the torsion spring (141) to be fixed with a nut (143), an upper rod (1411) of the torsion spring (141) is positioned on a positioning wall of a main rod positioning hole of the towing bar (14), a lower rod (1412) of the torsion spring (141) is positioned at the top of a connecting rod (11) behind a connecting frame (13), and the torsion spring (141) is of an L-shaped structural design.

5. A two-wheeled trailer-coupling steering mechanism in accordance with claim 1, wherein: the electric driving device (20) is internally provided with a battery (2001) and a controller (2002), and is connected with a motor hub of the right rear wheel (19) through a power line (2003).