CN215553851U

CN215553851U - Folding frame capable of adjusting distance between front wheel and rear wheel

Info

Publication number: CN215553851U
Application number: CN202120850663.8U
Authority: CN
Inventors: 桑伟峰
Original assignee: Tianjin Sely Technology Co ltd
Current assignee: Tianjin Sely Technology Co ltd
Priority date: 2021-04-24
Filing date: 2021-04-24
Publication date: 2022-01-18
Anticipated expiration: 2031-04-24

Abstract

The utility model discloses a folding frame capable of adjusting the distance between front wheels and rear wheels, which comprises upright posts, an upper cross rod A and a lower cross rod A, an upper cross rod A is arranged at the position of one side of the upright post close to the top end through a cross rod rotating shaft, an upper cross rod B is inserted outside the upper cross rod A, a headstock rotating shaft is arranged at the tail end of the upper cross bar B, a handle sleeve is arranged at the top end of the headstock rotating shaft, a lower cross rod A is arranged at the position of one side of the upright post departing from the upper cross rod A and close to the bottom end, a lower cross rod B is inserted outside the lower cross rod A, the tail end of the lower cross rod B is provided with a wheel B, the front surface of the lower cross rod B is provided with a transmission rod main body near the tail end, the transmission rod body is sleeved with a gear D at a position close to the tail end, a gear rod is installed at one side of the transmission rod body close to the upper cross rod A, and a pedal rod is installed at a position, close to the bottom end, of the stand column through a pedal rod rotating shaft. The utility model is convenient for adjusting the distance between the front wheel and the rear wheel according to the height of a rider and improves the riding comfort.

Description

Folding frame capable of adjusting distance between front wheel and rear wheel

Technical Field

The utility model relates to the technical field of folding frames, in particular to a folding frame with an adjustable distance between front wheels and rear wheels.

Background

At present, folding bicycle and foldable electric scooter have obtained quick development, and after the folding car is folding, the volume can be dwindled, portable gets into subway, elevator or packs into vapour car trunk.

The existing folding frame only reduces the size of the frame in a folding mode, the size of the frame in use cannot be adjusted according to the qualities of the height of a rider and the like, the riding comfort level is poor, the safety and the convenience of the use of the folding frame can be effectively improved by adjusting the distance between the front wheel and the rear wheel, the use of people in all ages is met, and therefore the folding frame with the adjustable distance between the front wheel and the rear wheel is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a folding frame capable of adjusting the distance between front wheels and rear wheels, which has the advantage of adjusting the distance between the front wheels and the rear wheels and solves the problems of fixed form and poor riding comfort of the folding frame.

In order to achieve the purpose, the utility model provides the following technical scheme: a folding frame capable of adjusting the distance between front wheels and rear wheels comprises upright posts, an upper cross rod A and a lower cross rod A, wherein the position, close to the top end, of one side of each upright post is provided with the upper cross rod A through a cross rod rotating shaft, the outer side of the upper cross rod A is spliced with an upper cross rod B, the tail end of the upper cross rod B is provided with a vehicle head rotating shaft, the top end of the vehicle head rotating shaft is provided with a handle sleeve, the position, close to the bottom end, of one side, away from the upper cross rod A, of each upright post is provided with the lower cross rod A, the outer side of the lower cross rod A is spliced with the lower cross rod B, the tail end of the lower cross rod B is provided with a wheel B, the position, close to the tail end, of the front surface of the lower cross rod B is provided with a transmission rod main body, the position, close to the tail end, of the transmission rod main body is sleeved with a gear D, the side, close to the upper cross rod A, of the upright post is provided with a pedal rod through a pedal rod rotating shaft, and a pedal is arranged at the tail end of the pedal rod.

Preferably, a seat supporting rod is inserted into the upright column, and a seat is installed at the top end of the seat supporting rod.

Preferably, a front fork is installed at the bottom end of the rotating shaft of the vehicle head, and a wheel A is installed at the bottom end of the front fork.

Preferably, the front surface of the upright post is positioned below the rotating shaft of the pedal rod and is provided with a gear A, the outer surface of the upright post is positioned outside the gear A and is provided with a worm A, and the gear A, the worm A and the gear rod are meshed with each other.

Preferably, a transmission rod sleeve is arranged on the front surface of the lower cross rod A and is sleeved on the outer surface of the transmission rod main body.

Preferably, a gear C is installed at the center of the front surface of the wheel B, a worm B is installed at the outer side of the gear C on the front surface of the lower cross bar B, and the worm B, the gear C and the gear D are meshed with each other.

Preferably, a gear B is sleeved at the position, close to the front surface, of the pedal rod rotating shaft, and the gear B is meshed with the gear A.

Compared with the prior art, the utility model has the following beneficial effects:

1. the bicycle frame has the advantages that the effect of adjusting the length of the upper cross rod is achieved by arranging the cross rod rotating shaft, the upper cross rod A and the upper cross rod B, the upper cross rod B extends outwards to a proper position from the inside of the upper cross rod A and is locked by the bolt, and the size of the bicycle frame can be adjusted according to the requirement of a rider.

2. According to the utility model, the worm A, the transmission rod main body and the worm B are arranged, so that the effects of conveniently adjusting the position of the wheel B and transmitting power are achieved, the gear B drives the gear A, the transmission rod main body is driven to rotate through the worm A and the gear rod, and the wheel B is driven to rotate through the gear D, the worm B and the gear C.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the present invention in a front view after being unfolded;

FIG. 3 is an enlarged view of A of FIG. 1;

FIG. 4 is an enlarged view of A in FIG. 1 according to the present invention.

In the figure: 1. a handle sleeve; 2. a headstock rotating shaft; 3. a front fork; 4. a wheel A; 5. a gear lever; 6. a foot pedal; 7. a transmission rod main body; 8. a drive rod sleeve; 9. a wheel B; 10. a column; 11. a seat; 12. a cross bar rotating shaft; 13. an upper cross bar A; 14. an upper cross bar B; 15. a seat post; 16. a lower cross bar A; 17. a lower cross bar B; 18. a pedal lever shaft; 19. a worm A; 20. a gear A; 21. a pedal rod; 22. a gear B; 23. a gear C; 24. a worm B; 25. and a gear D.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a foldable frame with adjustable distance between front and rear wheels, comprising: a folding frame capable of adjusting the distance between front and rear wheels comprises a vertical column 10, an upper cross rod A13 and a lower cross rod A16, wherein the position of one side of the vertical column 10, which is close to the top end, is provided with an upper cross rod A13 through a cross rod rotating shaft 12, the outer side of the upper cross rod A13 is inserted with an upper cross rod B14, the tail end of the upper cross rod B14 is provided with a vehicle head rotating shaft 2, the top end of the vehicle head rotating shaft 2 is provided with a handle sleeve 1, the bottom end of the vehicle head rotating shaft 2 is provided with a front fork 3, the bottom end of the front fork 3 is provided with a wheel A4, the side of the vertical column 10, which is far away from the upper cross rod A13, is provided with a lower cross rod A16, the outer side of the lower cross rod A16 is inserted with a lower cross rod B17, the tail end of the lower cross rod B17 is provided with a wheel B9, the front surface of the lower cross rod B17 is provided with a transmission rod main body 7, the transmission rod 7, the position, the transmission rod main body 7 is sleeved with a gear D25, the position of the transmission rod main body 7, one side of the upper cross rod A13 is provided with a gear A20, the outer surface of the upright post 10 is positioned at the outer side position of the gear A20 and is provided with a worm A19, the gear A20, the worm A19 is meshed with the gear rod 5, when the gear B22 rotates, the gear A20 and the worm A19 drive the gear rod 5 to rotate, so that the transmission rod main body 7 is driven to rotate, the upright post 10 is close to the bottom end position and is provided with a pedal rod 21 through a pedal rod rotating shaft 18, the tail end of the pedal rod 21 is provided with a pedal 6, the position of the pedal rod rotating shaft 18 close to the front surface position is sleeved with the gear B22, the gear B22 is meshed with the gear A20, the inside of the upright post 10 is spliced with a seat support rod 15, the top end of the seat support rod 15 is provided with the seat 11, the height of the seat 11 can be lifted, and the riding comfort level is improved.

Referring to fig. 1 and 4, the present invention provides a foldable frame with adjustable distance between front and rear wheels, comprising: a folding frame capable of adjusting the distance between front wheels and rear wheels comprises a vertical column 10, an upper cross bar A13 and a lower cross bar A16, wherein an upper cross bar A13 is installed at the position, close to the top end, of one side of the vertical column 10 through a cross bar rotating shaft 12, an upper cross bar B14 is inserted into the outer side of the upper cross bar A13, a vehicle head rotating shaft 2 is installed at the tail end of the upper cross bar B14, a handle sleeve 1 is installed at the top end of the vehicle head rotating shaft 2, a lower cross bar A16 is installed at the position, close to the bottom end, of one side, away from the upper cross bar A13, of the vertical column 10, a transmission bar sleeve 8 is installed on the front surface of the lower cross bar A16, the transmission bar sleeve 8 is sleeved on the outer surface of a transmission bar main body 7 and used for improving the stability of the transmission bar main body 7 and preventing the deviation of the angle of the transmission bar main body 7, a lower cross bar B17 is inserted into the outer side of the lower cross bar A16, a wheel B9 is installed at the tail end of the lower cross bar B17, a gear C23 is installed at the central position of the wheel B9, a gear C23, a worm 24 is installed on the front surface of the lower cross bar B17 of the gear C23, and the worm B24, the gear C23 and the gear D25 are meshed with each other, when the transmission rod main body 7 rotates, the gear D25, the worm B24 and the gear C23 drive the wheel B9 to rotate, the transmission rod main body 7 is installed on the front surface of the lower cross rod B17 close to the tail end, the gear D25 is sleeved on the transmission rod main body 7 close to the tail end, the gear rod 5 is installed on one side of the transmission rod main body 7 close to the upper cross rod A13, the pedal rod 21 is installed on the upright post 10 close to the bottom end through the pedal rod rotating shaft 18, and the pedal 6 is installed at the tail end of the pedal rod 21.

The working principle is as follows: the bicycle is arranged at a place needing to work, the upper cross bar A13 is unfolded through the cross bar rotating shaft 12, the upper cross bar B14 extends outwards to a proper position, the upper cross bar A13 and the upper cross bar B14 are locked through the bolt, the lower cross bar B17 extends to the proper position from the inside of the lower cross bar A16, when the bicycle is ridden, the gear A20 is driven to rotate through the gear B22, the transmission rod main body 7 transmits the transmission rod to the gear D25, and the worm B24 and the gear C23 drive the wheel B9 to rotate, so that the working process of the bicycle is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an adjustable front and back wheel interval's folding chassis, includes stand (10), last horizontal pole A (13) and sheer pole A (16), its characterized in that: an upper cross rod A (13) is installed at a position, close to the top end, of one side of the upright column (10) through a cross rod rotating shaft (12), an upper cross rod B (14) is inserted into the outer side of the upper cross rod A (13), a vehicle head rotating shaft (2) is installed at the tail end of the upper cross rod B (14), a handle sleeve (1) is installed at the top end of the vehicle head rotating shaft (2), a lower cross rod A (16) is installed at a position, close to the bottom end, of one side, far away from the upper cross rod A (13), of the upright column (10), a lower cross rod B (17) is installed at the outer side of the lower cross rod A (16), a lower cross rod B (17) is inserted into the outer side of the lower cross rod B (17), a transmission rod main body (7) is installed at a position, close to the tail end, of the front surface of the lower cross rod B (17), a gear D (25) is sleeved at a position, and a gear rod (5) is installed at a position, close to the end, of the transmission rod main body (7), close to the upper cross rod A (13), the position of the upright post (10) close to the bottom end is provided with a pedal rod (21) through a pedal rod rotating shaft (18), and the tail end of the pedal rod (21) is provided with a pedal plate (6).

2. The foldable frame with the adjustable distance between the front wheel and the rear wheel as claimed in claim 1, wherein: a seat supporting rod (15) is inserted into the upright post (10), and a seat (11) is installed at the top end of the seat supporting rod (15).

3. The foldable frame with the adjustable distance between the front wheel and the rear wheel as claimed in claim 1, wherein: the front fork (3) is installed to locomotive pivot (2) bottom, wheel A (4) are installed to front fork (3) bottom.

4. The foldable frame with the adjustable distance between the front wheel and the rear wheel as claimed in claim 1, wherein: the utility model discloses a pedal pole, including stand (10), gear A (20) are installed to stand (10) front surface position below pedal pole pivot (18) position department, worm A (19) are installed to stand (10) surface position in gear A (20) outside position department, and gear A (20), worm A (19) and gear lever (5) mesh mutually.

5. The foldable frame with the adjustable distance between the front wheel and the rear wheel as claimed in claim 1, wherein: the front surface of the lower cross rod A (16) is provided with a transmission rod sleeve (8), and the transmission rod sleeve (8) is sleeved on the outer surface of the transmission rod main body (7).

6. The foldable frame with the adjustable distance between the front wheel and the rear wheel as claimed in claim 1, wherein: the front surface center position of the wheel B (9) is provided with a gear C (23), the front surface of the lower cross rod B (17) is provided with a worm B (24) at the outer side position of the gear C (23), and the worm B (24), the gear C (23) and the gear D (25) are meshed.

7. The foldable frame with the adjustable distance between the front wheel and the rear wheel as claimed in claim 1, wherein: and a gear B (22) is sleeved at the position, close to the front surface, of the pedal rod rotating shaft (18), and the gear B (22) is meshed with the gear A (20).