CN217623959U

CN217623959U - Multi-pedal lever labor-saving bicycle

Info

Publication number: CN217623959U
Application number: CN202221168731.3U
Authority: CN
Inventors: 王谷清
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-10-21
Anticipated expiration: 2032-05-16

Abstract

The utility model discloses a laborsaving bicycle of many foot bars belongs to bicycle accessory technical field, the frame, be equipped with a laborsaving mechanism on the frame, and its output and the epaxial well hub connection of frame, laborsaving mechanism includes the support, the support includes, the extension board that is located the frame both sides respectively and the connecting block of setting on the frame whippletree, the connecting block both sides are connected with the extension board top respectively, the extension board bottom is equipped with the through-hole, and its centre of a circle is located same horizontal plane with the axis centre of a circle, a certain distance has between through-hole and the axis, and the through-hole is more close to the front wheel on the frame for the axis, the extension board is connected with connecting rod two through the through-hole, connecting rod two includes the main shaft of connecting at the through-hole internal rotation, the through-hole is extended at the main shaft both ends, its one end is connected with foot bar one, the other end is connected with foot bar two, foot bar two is kept away from main shaft one side and is equipped with the running-board, current laborsaving bicycle has been solved, the comparatively complicated or the less problem of audience face of structure.

Description

Multi-pedal-lever labor-saving bicycle

Technical Field

The utility model belongs to the technical field of the bicycle accessory, concretely relates to laborsaving bicycle of many foot levers.

Background

The bicycle is continuously concerned by people due to economy, convenience, flexibility, no pollution and free parking, and the bicycle can be an indispensable tool for riding instead of walk in daily life of people. However, the prior art bicycle pedal assembly consists of a linkage, a sprocket, a flywheel, and a chain pedal, the linkage being of a fixed length, so that the moment of the flywheel is constant with a constant force. The moment can make the object obtain angular acceleration, and can make the moment of momentum of the object change, the moment is bigger for the same object, the rotating state is easier to change, in order to change the moment, more laborsaving is ridden, the prior art generally adopts the method of changing the size of the flywheel or increasing the length of the connecting rod to increase the length of the moment arm, so that the moment is increased, the size of the flywheel is changed to make a bicycle need to increase several flywheels, the complexity of the bicycle is increased, the maintenance is inconvenient, and the method of increasing the length of the connecting rod is adopted, so that the circular motion distance is increased when the connecting rod rotates, and the legs are different due to the height of the ridden person, thereby limiting part of the people to ride, and reducing the popular range.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a laborsaving bicycle of pole steps on more has and need not to increase flywheel or extension connecting rod length through taking the pole mode of stepping on more, also can improve arm of force length, has guaranteed more laborsaving riding, adopts normal bicycle connecting rod length simultaneously to this adaptation crowd is wider, and simple structure, easy maintenance's characteristics.

In order to achieve the above purpose, the utility model provides a following technical scheme: a multi-pedal lever labor-saving bicycle comprises a frame, wherein a labor-saving mechanism is arranged on the frame, and the output end of the labor-saving mechanism is connected with a middle shaft on the frame;

the labor-saving mechanism comprises a bracket, the bracket comprises a support plate and a connecting block, the support plate is respectively positioned at two sides of the frame, the connecting block is arranged on a cross bar of the frame, and two sides of the connecting block are respectively connected with the tops of the support plates;

the bottom of the support plate is provided with a through hole, the circle center of the through hole and the circle center of the center shaft are positioned on the same horizontal plane, a certain distance is reserved between the through hole and the center shaft, and the through hole is closer to a front wheel on the frame relative to the center shaft;

the support plate is connected with a second connecting rod through a through hole, the second connecting rod comprises a main shaft which is rotatably connected in the through hole, through holes extend out of two ends of the main shaft, one end of the main shaft is connected with a first pedal rod, the other end of the main shaft is connected with a second pedal rod, and a pedal plate is arranged on one side, away from the main shaft, of the second pedal rod;

one end of the first pedal rod, far away from the main shaft, is connected with a first connecting rod, and one end of the first connecting rod, far away from the first pedal rod, is connected with the middle shaft.

Preferably, one side of the first connecting rod, which is close to the first pedal rod, is provided with a running groove with two open ends, the first connecting rod, which is far away from the middle shaft, is provided with two bearings I and is positioned at two sides of the running groove, one side of the first pedal rod, which is close to the first connecting rod, is provided with a bearing II matched with the running groove, the width of the first pedal rod is smaller than the distance between the two bearings I, and the first pedal rod is matched with any one bearing I in a working state to drive the first connecting rod to rotate circumferentially.

Preferably, both open ends of the running groove are in a bell mouth shape.

Preferably, one end of the pedal rod I, which is close to the bearing I, is provided with a fillet.

Preferably, the top of the support is provided with an oblique angle, the bottom of the support is a straight line segment, and the length of the straight line segment is not less than the length of the pedal rod.

Preferably, the first connecting rod and the first pedal rod are equal in length, and the distance between the through hole and the middle shaft is equal to half of the length of the first connecting rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a laborsaving bicycle of many foot bars, it is first through the support setting foot bar to be provided with in the place ahead level department at a connecting rod fulcrum, when the foot bar begins to rotate the during operation, foot bar drives a connecting rod and rotates, through foot bar and connecting rod cooperation work, make the length of the arm of force increase, it increases length and is a connecting rod fulcrum to the distance of foot bar fulcrum, and because connecting rod one equals with foot bar length, when the personnel of riding ride, the circular motion distance when foot bar rotates is the same with original, it is wider to have guaranteed audience adaptation crowd, and simple structure, easy maintenance.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a perspective view of a part of the labor saving mechanism;

FIG. 4 is a schematic view of a disassembled part structure of the labor saving mechanism;

in the figure: 1. a labor-saving mechanism; 2. a frame; 3. a support; 4. a first pedal lever; 5. a second pedal lever; 6. a foot pedal; 7. a first bearing; 8. a running groove; 9. a first connecting rod; 10. a middle shaft; 11. a main shaft; 12. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a labor-saving bicycle with multiple pedal rods comprises a frame 2, wherein a labor-saving mechanism 1 is arranged on the frame 2, and the output end of the labor-saving mechanism is connected with a middle shaft 10 on the frame 2;

the labor-saving mechanism 1 comprises a bracket 3, the bracket 3 comprises a support plate and a connecting block, the support plate is respectively positioned at two sides of the frame 2, the connecting block is arranged on a cross bar of the frame 2, and two sides of the connecting block are respectively connected with the tops of the support plates;

the bottom of the support plate is provided with a through hole 12, the circle center of the through hole and the circle center of the center shaft 10 are positioned on the same horizontal plane, a certain distance is reserved between the through hole 12 and the center shaft 10, and the through hole 12 is closer to a front wheel on the frame 2 relative to the center shaft 10;

the support plate is connected with a second connecting rod through a through hole 12, the second connecting rod comprises a main shaft 11 which is rotatably connected in the through hole 12, two ends of the main shaft extend out of the through hole 12, one end of the main shaft is connected with a first pedal rod 4, the other end of the main shaft is connected with a second pedal rod 5, and one side, away from the main shaft 11, of the second pedal rod 5 is provided with a pedal plate 6;

one end of the first pedal rod 4, far away from the main shaft 11, is connected with a first connecting rod 9, and one end of the first connecting rod 9, far away from the first pedal rod 4, is connected with the middle shaft 10.

Specifically, one side of the connecting rod I9, which is close to the pedal rod I4, is provided with a running groove 8 with two open ends, the connecting rod I9, which is far away from the center shaft 10, is provided with two bearings I7, which are located on two sides of the running groove 8, one side of the pedal rod I4, which is close to the connecting rod I9, is provided with a bearing II matched with the running groove 8, the width of the pedal rod I4 is smaller than the distance between the two bearings I7, the pedal rod I4 is matched with any one of the bearings I7 in a working state to drive the connecting rod I9 to rotate circumferentially, wherein when the pedal rod I4 drives the connecting rod I9 to do circular motion, the pedal rod I4 firstly drives the connecting rod I9 to do circular motion through the bearing II, then the bearing II is gradually separated from the running groove 8 along with the circular motion, at the moment, the pedal rod I4 is limited between the two bearings I7, the side wall of the pedal rod I4 is matched with any one of the bearing I7, so that the pedal rod I4 continuously drives the connecting rod I9 to do circular motion until the bearing II returns to the running groove 8 again, and the connecting rod 4 is ensured to circulate.

Specifically, two open ends of the operation groove 8 are both in a horn mouth shape, so that the second bearing is better separated from or enters the operation groove 8, and the operation is more smooth.

Specifically, the one end that is close to bearing 7 on foot bar 4 is equipped with the radius angle, has guaranteed when bearing two breaks away from operation groove 8, can be smooth and easy get into between two bearings 7 through the fillet on foot bar 4, can not appear producing between foot bar 4 and the bearing 7 and scratch, and make the problem that foot bar 4 is blocked.

Specifically, 3 tops of support are equipped with the oblique angle, and the bottom is the straightway, and straightway length is not less than 4 length on the foot bar, and 3 top oblique angles of support have guaranteed to accord with the human required span when riding for the personnel of riding are at the in-process of riding, and the motion of thigh can not interfered, has guaranteed better riding, and the straightway has guaranteed to reserve sufficient space, makes connecting rod two when rotating, can not interfered.

Specifically, the first connecting rod 9 and the first pedal rod 4 are equal in length, the distance between the through hole 12 and the middle shaft 10 is equal to half of the length of the first connecting rod 9, and the first connecting rod 9 and the first pedal rod 4 are both the length of a normal bicycle connecting rod, so that better ergonomics can be guaranteed.

Through the technical scheme, the utility model discloses a laborsaving bicycle of many foot bars described, it is provided with foot bar 4 through support 3 to locate at the place ahead level of bicycle connecting rod 9 fulcrums, when foot bar 4 begins to rotate the during operation, foot bar 4 drives connecting rod 9 and rotates, cooperate the work through foot bar 4 and connecting rod 9, make the length of the arm of force increase, it increases length and is the distance of connecting rod 9 fulcrums to foot bar 4 fulcrums, and because connecting rod 9 equals with foot bar 4 length, when the personnel of riding, circular motion distance when foot bar 4 rotates is the same with original, it is wider to have guaranteed that audience adaptation crowd, it need not to change the flywheel size or increase flywheel quantity, can increase moment, and the structure is compared in the mode that increases the flywheel, moreover, the steam generator is simple in structure, and easy maintenance.

The utility model discloses a theory of operation and use flow: the utility model discloses a laborsaving bicycle of many foot bars, when the bicycle begins to ride, the personnel of riding is through trampling running-board 6, make connecting rod two begin circular motion, then foot bar 4 drives connecting rod 9 and is circular motion, at first move in operation groove 8 through bearing two, make foot bar 4 drive connecting rod 9 and be circular motion, then along with circular motion, bearing two breaks away from operation groove 8 gradually, it is spacing between the two with foot bar 4 through two bearing one 7 this moment, foot bar 4 lateral wall cooperatees with arbitrary bearing one 7, make foot bar 4 continue to drive connecting rod 9 circular motion, get back to the operation groove 8 again until bearing two, so circulate, guaranteed that foot bar one 4 can drive connecting rod 9 circular motion all the time, make the length increase of the arm of force, under the same effort of trampling running-board 6, the moment increases, more laborsaving riding.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a laborsaving bicycle of many foot levers, includes frame (2), its characterized in that: the frame (2) is provided with a labor-saving mechanism (1), and the output end of the labor-saving mechanism is connected with a middle shaft (10) on the frame (2);

the labor-saving mechanism (1) comprises a bracket (3), the bracket (3) comprises support plates respectively positioned at two sides of the frame (2) and connecting blocks arranged on a cross bar of the frame (2), and two sides of each connecting block are respectively connected with the tops of the support plates;

the bottom of the support plate is provided with a through hole (12), the circle center of the through hole and the circle center of the center shaft (10) are located on the same horizontal plane, a certain distance is reserved between the through hole (12) and the center shaft (10), and the through hole (12) is closer to a front wheel on the frame (2) relative to the center shaft (10);

the support plate is connected with a second connecting rod through a through hole (12), the second connecting rod comprises a main shaft (11) which is rotatably connected in the through hole (12), two ends of the main shaft (11) extend out of the through hole (12), one end of the main shaft is connected with a first pedal rod (4), the other end of the main shaft is connected with a second pedal rod (5), and one side, away from the main shaft (11), of the second pedal rod (5) is provided with a pedal (6);

one end, far away from the main shaft (11), of the pedal rod I (4) is connected with a connecting rod I (9), and one end, far away from the pedal rod I (4), of the connecting rod I (9) is connected with the middle shaft (10).

2. A multi-pedal lever labor saving bicycle as claimed in claim 1, wherein: the connecting rod I (9) is close to one side of the pedal rod I (4) and is provided with a running groove (8) with two open ends, the connecting rod I (9) is far away from the middle shaft (10) and is provided with two bearings I (7) and is positioned on two sides of the running groove (8), one side of the pedal rod I (4) close to the connecting rod I (9) is provided with a bearing II matched with the running groove (8), the width of the pedal rod I (4) is smaller than the distance between the bearings I (7), and the pedal rod I (4) is matched with any one of the bearings I (7) under the working state to drive the connecting rod I (9) to rotate circumferentially.

3. A multi-pedal lever labor saving bicycle as claimed in claim 2, wherein: the two open ends of the running groove (8) are both in a horn mouth shape.

4. A multi-pedal lever labor saving bicycle as claimed in claim 2, wherein: one end of the pedal rod I (4) close to the bearing I (7) is provided with a fillet.

5. A multi-pedal lever labor saving bicycle as claimed in claim 1, wherein: the top of the support (3) is provided with an oblique angle, the bottom of the support is a straight line segment, and the length of the straight line segment is not less than the length of the first pedal rod (4).

6. A multi-pedal lever labor saving bicycle as claimed in claim 1, wherein: the first connecting rod (9) and the first pedal rod (4) are equal in length, and the distance between the through hole (12) and the middle shaft (10) is equal to half of the length of the first connecting rod (9).