CN211663395U

CN211663395U - Reciprocating driving mechanism and bicycle

Info

Publication number: CN211663395U
Application number: CN201922483791.9U
Authority: CN
Inventors: 夏正磊; 李鑫
Original assignee: 618 Technology Shenzhen Co ltd
Current assignee: 618 Technology Shenzhen Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-13
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a reciprocating drive mechanism and bicycle, reciprocating drive mechanism includes swiveling wheel, drive swiveling wheel and is in at the rotatory first driving piece of first direction, drive swiveling wheel first direction rotatory second driving piece and connect first driving piece and second driving piece and make first driving piece and second driving piece rotation opposite direction's transmission assembly, the left and right sides of swiveling wheel is located respectively to first driving piece and second driving piece, first driving piece and second driving piece all are connected with swiveling wheel unidirectional rotation, the transmission assembly is including the first connecting piece that is fixed in first driving piece, be fixed in the second connecting piece of second driving piece and be used for transmitting the transfer line of the motion between first connecting piece and the second connecting piece. The utility model provides a reciprocating drive mechanism and bicycle need not to use chain sprocket mechanism, the condition that the chain drops, rusts can not appear, and the volume that this reciprocating drive mechanism occupy moreover is less, and the structure is also comparatively simple.

Description

Reciprocating driving mechanism and bicycle

Technical Field

The utility model belongs to the technical field of the bicycle, more specifically say, relate to a reciprocating drive mechanism and bicycle.

Background

Bicycles are very common in daily life as a means of riding instead of walking and for exercise. The driving mechanism of bicycle is chain wheel mechanism, which is connected with chain wheel and chain to drive the front wheel to move. When the bicycle adopts a transmission mode of a chain and a chain wheel, the chain is easy to fall off and rust, and the chain wheel mechanism has a complex structure and occupies a larger space.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reciprocating drive mechanism to solve the technical problem such as the sprocket mechanism structure that exists among the prior art is complicated, become invalid easily, occupation space is big.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a reciprocating drive mechanism, includes swiveling wheel, drive the swiveling wheel is in first direction rotation's first driving piece, drive the swiveling wheel is in first direction rotation's second driving piece and connection first driving piece with the second driving piece just makes first driving piece with second driving piece rotation direction opposite's transmission assembly, first driving piece and second driving piece are located respectively the left and right sides of swiveling wheel, first driving piece with the second driving piece all with the unidirectional rotation of swiveling wheel is connected, transmission assembly is including being fixed in the first connecting piece of first driving piece, be fixed in the second connecting piece of second driving piece and be used for the transmission first connecting piece with the transfer line of motion between the second connecting piece.

In one embodiment, the transmission assembly further comprises a main shaft, the main shaft is arranged through the rotating wheel, and the axial direction of the main shaft is coincident with the central axis of the rotating wheel; the transmission rod is connected with the spindle in a sliding mode, the sliding direction of the transmission rod is parallel to the axial direction of the spindle, or the transmission rod is connected with the spindle in a swinging mode, and the rotating central shaft of the transmission rod is perpendicular to the axial direction of the spindle.

In one embodiment, one end of the first connecting piece is arranged in the main shaft, and the other end of the first connecting piece is connected to the first driving piece; one end of the second connecting piece is arranged in the main shaft, and the other end of the second connecting piece is connected to the second driving piece.

In one embodiment, the first connecting piece comprises a first fixing part, a first extending part and a first guiding part for pushing the transmission rod, which are connected in sequence, the first driving piece is provided with a first connecting position for connecting the first fixing part, and the first extending part is arranged in the main shaft in a penetrating way; the second connecting piece is including the second fixed part, the second extension that connect gradually and be used for promoting the second guide part of transfer line, the second driving piece has and is used for connecting the second connection position of second fixed part, the second extension is worn to locate in the main shaft.

In one embodiment, the first guide portion has a first inclined surface for pushing the transmission rod, the second guide portion has a second inclined surface for pushing the transmission rod, two ends of the transmission rod respectively abut against the first inclined surface and the second inclined surface, and the first inclined surface and the second inclined surface are both inclined with respect to a central axis of the rotation wheel.

In one embodiment, the spindle is provided with an accommodating groove, and the first guide portion, the second guide portion and the transmission rod are all disposed in the accommodating groove.

In one embodiment, the first driving member and the rotating wheel, and the second driving member and the rotating wheel are all connected in a unidirectional rotation mode through a ratchet mechanism, a one-way bearing or an overrunning clutch.

In one embodiment, the ratchet mechanism comprises a ratchet and a pawl;

the pawl is connected with the wheel, and a plurality of ratchets are distributed on the periphery or the inner wall of the first pedal piece and the second pedal piece in an annular mode, so that the first pedal piece and the second pedal piece are the ratchets;

or the pawl is connected with the first pedal part and the second pedal part, and the wheel is provided with ratchets distributed annularly, so that the wheel is the ratchet wheel;

alternatively, one of the ratchet wheel or the pawl is attached to the wheel and the other of the ratchet wheel or the pawl is attached to the first step member and the second step member.

The utility model also provides a bicycle, including foretell reciprocating drive mechanism.

In one embodiment, the first and second drivers are both pedal shafts and the rotating wheel is a wheel.

The utility model provides a reciprocating drive mechanism and bicycle's beneficial effect lies in: compared with the prior art, the utility model discloses reciprocating drive mechanism includes swiveling wheel, first driving piece, second driving piece and drive assembly, and first driving piece and second driving piece all are connected with swiveling wheel unidirectional rotation, and first driving piece and second driving piece all can only drive the swiveling wheel and move in the first direction. When the first driving piece drives the rotating wheel to rotate in the first direction, the first connecting piece fixedly connected with the first driving piece drives the second connecting piece and the second driving piece to rotate in the second direction through the transmission rod; when the second driving part drives the rotating wheel to rotate in the first direction, the second connecting part fixedly connected with the second driving part drives the first connecting part and the first driving part to rotate in the second direction through the transmission rod. Wherein the first direction and the second direction are opposite. The embodiment of the utility model provides an among the reciprocating drive mechanism, need not to use chain sprocket mechanism, the condition that the chain drops, rusts can not appear, the volume that this reciprocating drive mechanism occupy moreover is less, and the structure is also comparatively simple.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a three-dimensional structure diagram of a reciprocating driving mechanism provided in an embodiment of the present invention;

fig. 2 is an exploded view of a first reciprocating drive mechanism according to an embodiment of the present invention;

FIG. 3 is a perspective view of a drive assembly of the first reciprocating drive mechanism provided in FIG. 2;

FIG. 4 is a perspective view of the first connecting member of FIG. 3;

fig. 5 is an exploded view of a first reciprocating drive mechanism according to an embodiment of the present invention;

FIG. 6 is a perspective view of a drive assembly of the first reciprocating drive mechanism provided in FIG. 5;

FIG. 7 is a perspective view of the first connecting member of FIG. 6;

fig. 8 is a three-dimensional structure diagram of the spindle provided in the embodiment of the present invention;

fig. 9 is a perspective view of a first driving member according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a first driving member; 11-first connection bit; 12-a ratchet; 2-a second driving member; 21-second connection bit; 3-rotating the wheel; 31-a pawl; 4a, 4 b-a transmission assembly; 41-a first connector; 411-a first stationary part; 412-a first extension; 413a, 413 b-a first guide; 4131a, 4131 b-first inclined surface; 42-a second connector; 421-a second fixed part; 422-a second extension; 423a, 423 b-a second guide; 4231a, 4231 b-second inclined plane; 43-a transmission rod; 44-a main shaft; 441-a containing groove; 442-shaft hole; 5-vehicle frame.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the 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 specifically limited otherwise.

The reciprocating driving mechanism provided by the embodiment of the present invention is now explained.

Referring to fig. 1 and 2, in one embodiment of the reciprocating driving mechanism, the reciprocating driving mechanism includes a rotating wheel 3, a first driving member 1, a second driving member 2 and a transmission assembly 4 a. First driving piece 1 and second driving piece 2 locate the relative both sides of swiveling wheel 3 respectively, and first driving piece 1 and second driving piece 2 all are connected with swiveling wheel 3 unidirectional rotation, and all are used for driving swiveling wheel 3 rotatory in first direction. That is, when the first driving member 1 rotates in the first direction, the rotating wheel 3 is fixedly connected with the first driving member 1, and the rotating wheel 3 rotates together with the first driving member 1; when the first driving member 1 rotates in the second direction, the rotating wheel 3 is not restrained, and the first driving member 1 is rotatably connected with the rotating wheel 3, so that the first driving member 1 can rotate freely. The connection relationship between the second driving member 2 and the rotation wheel 3 is the same as the relationship between the first driving member 1 and the rotation wheel 3, and will not be described in detail herein. The transmission assembly 4 is used for transmitting the movement between the first driving member 1 and the second driving member 2, the transmission assembly 4a includes a first connecting member 41, a transmission rod 43 and a second connecting member 42, the first connecting member 41 is fixed on the first driving member 1, the second connecting member 42 is fixed on the second driving member 2, and two ends of the transmission rod 43 are respectively connected with the first connecting member 41 and the second connecting member 42.

More specifically, when the first driving member 1 drives the rotation wheel 3 to rotate in the first direction, the first link 41 rotates with the first driving member 1, and the motion of the first link 41 is transmitted to the second link 42 through the transmission rod 43, so that the second link 42 rotates in the second direction, thereby rotating the second driving member 2 in the second direction. When the second driving member 2 drives the rotation wheel 3 to rotate in the first direction, the second connecting member 42 rotates with the second driving member 2, and the motion of the second connecting member 42 is transmitted to the first connecting member 41 through the transmission rod 43, so that the first connecting member 41 rotates in the second direction, and the first driving member 1 rotates in the second direction. As shown in fig. 1, the direction a is a first direction, the direction B is a second direction, and the rotation directions of the first direction and the second direction are opposite.

When the reciprocating driving mechanism in the above embodiment is applied to a bicycle, the first driving member 1 drives the rotating wheel 3 to rotate in a first direction, the second driving member 2 correspondingly rotates in a second direction, the second driving member 2 drives the rotating wheel 3 to rotate in the first direction, and the first driving member 1 correspondingly rotates in the second direction. The first driving member 1 and the second driving member 2 are alternately driven to make the first driving member 1 and the second driving member 2 of the bicycle continuously swing back and forth, and make the rotating wheel 3 continuously rotate in the first direction to drive the whole bicycle to move forward.

The reciprocating driving mechanism of the above embodiment includes a rotating wheel 3, a first driving member 1, a second driving member 2 and a transmission assembly 4a, the first driving member 1 and the second driving member 2 are both connected with the rotating wheel 3 in a unidirectional rotation manner, and both the first driving member 1 and the second driving member 2 can only drive the rotating wheel 3 to move in a first direction. When the first driving member 1 drives the rotating wheel 3 to rotate in the first direction, the first connecting member 41 fixedly connected with the first driving member 1 drives the second connecting member 42 and the second driving member 2 to rotate in the second direction through the transmission rod 43; when the second driver 2 drives the rotor 3 to rotate in the first direction, the second link 42 fixedly connected to the second driver 2 drives the first link 41 and the first driver 1 to rotate in the second direction through the transmission rod 43. Wherein the first direction and the second direction are opposite. The embodiment of the utility model provides an among the reciprocating drive mechanism, need not to use chain sprocket mechanism, the condition that the chain drops, rusts can not appear, the volume that this reciprocating drive mechanism occupy moreover is less, and the structure is also comparatively simple.

Referring to fig. 3 and 6, in one embodiment of the reciprocating driving mechanism, the transmission assembly 4a (4b) includes a first connecting member 41, a transmission rod 43 and a second connecting member 42, the transmission assembly 4a (4b) further includes a spindle 44, the spindle 44 is disposed through the rotating wheel 3, an axial direction of the spindle 44 is overlapped with a central axis of the rotating wheel 3, and when the rotating wheel 3 rotates, the spindle 44 is relatively stationary. The main shaft 44 is provided to facilitate mounting and positioning of the first connecting member 41, the transmission rod 43 and the second connecting member 42, so that the first connecting member 41, the transmission rod 43 and the second connecting member 42 can be more accurately matched.

Referring to fig. 3 and 4, in one embodiment of the transmission assembly 4a, the transmission rod 43 is slidably connected to the main shaft 44, and the sliding direction of the transmission rod 43 is parallel to the axial direction of the main shaft 44. Thus, when the first connecting member 41 rotates with the first driving member 1, the first connecting member 41 pushes the transmission rod 43 in the axial direction of the main shaft 44, so that the transmission rod 43 pushes the second connecting member 42 in the axial direction of the main shaft 44, and the second connecting member 42 converts the axial movement along the main shaft 44 into a rotational movement, so that the second driving member 2 rotates in the opposite direction; when the second connector 42 rotates with the second driving member 2, the second driving member 2 can be pushed to rotate reversely. The first link 41 and the second link 42 may convert a linear motion into a rotational motion, or convert a rotational motion into a linear motion, the first link 41 is provided with a first inclined surface 4131a on a side facing the driving lever 43, the second link 42 is provided with a second inclined surface 4231a on a side facing the driving lever 43, and the first inclined surface 4131a and the second inclined surface 4231a are both spiral surfaces, so that the linear motion may be converted into a rotational motion, and the rotational motion may be converted into a linear motion.

Referring to fig. 5 to 7, in one embodiment of the transmission assembly 4b, the transmission rod 43 is connected with the main shaft 44 in a swinging manner, the transmission rod 43 can rotate relative to the main shaft 44, and a rotation central axis of the transmission rod 43 is perpendicular to an axial direction of the main shaft 44. When the transmission rod 43 swings relative to the main shaft 44, the angle between the axial direction of the transmission rod 43 and the axial direction of the main shaft 44 is gradually increased after being reduced to zero, and the transmission rod 43 swings in a reciprocating manner. When the first driving member 1 drives the rotation wheel 3 to rotate, the first link 41 rotates, the rotation of the first link 41 pushes the rotation of the transmission rod 43, and the rotation of the transmission rod 43 pushes the second link 42 to rotate, so that the second driving member 2 rotates in the second direction. The rotation of the first link 41 and the second link 42 enables the transmission lever 43 to rotate accordingly. The first inclined surface 4131b is provided on the side of the first link 41 facing the driving lever 43, the second inclined surface 4231b is provided on the side of the second link 42 facing the driving lever 43, and the first inclined surface 4131b and the second inclined surface 4231b can guide the driving lever 43, smoothly transmit the rotation of the first link 41 and the second link 42 to the driving lever 43, and smoothly transmit the rotation of the driving lever 43 to the first link 41 and the second link 42. The first inclined surface 4131b and the second inclined surface 4231b are flat surfaces and are inclined with respect to the central axis of the rotor 3, so that the transmission lever 43 can transmit rotation. The inclination angles of the first inclined surface 4131b and the second inclined surface 4231b are not limited herein, and the transmission lever 43 may be pushed to rotate.

Referring to fig. 3 and 6, in one embodiment of the transmission assembly, one end of the first connecting member 41 is disposed in the main shaft 44, and the main shaft 44 has a limiting effect on the first connecting member 41, so that the first connecting member 41 rotates around an axis of the main shaft 44 as a central axis. The other end of the first link 41 is fixed to the first driver 1 so that the movements of the first driver 1 and the first link 41 are synchronized. One end of the second link 42 is disposed in the main shaft 44, and the main shaft 44 has a stopper function on the second link 42, so that the second link 42 rotates about the axis of the main shaft 44. The other end of the second link 42 is fixed to the second driver 2 so that the movements of the second link 42 and the second driver 2 are synchronized.

Referring to fig. 3, 4, 6 and 7, in one embodiment of the transmission assembly 4a (4b), the first connecting element 41 includes a first fixing portion 411, a first extending portion 412 and a first guiding portion 413a (413b) connected in sequence. The first fixing portion 411 is fixed in the first driving member 1, and the first fixing portion 411 and the first driving member 1 can be fixedly connected by clamping, welding, screwing and the like. When the first fixing portion 411 and the first driving member 1 are connected to each other in a clamping manner, as shown in fig. 9, the first driving member 1 is provided with a first connecting position 11, the first fixing portion 411 is inserted into the first connecting position 11, and when the first driving member 1 rotates, the first fixing portion 411 rotates along with the first driving member 1. More specifically, the first connecting portion 11 is disposed along the radial direction of the first driving member 1, the first fixing portion 411 is radially inserted into the first connecting portion 11, so that the circumferential movement of the first fixing portion 411 is synchronous with the first driving member 1, and the first extending portion 412 is disposed through the main shaft 44, so as to save the radial space occupied by the transmission assembly. At this time, the first fixing portion 411 and the first extending portion 412 are vertically connected. The first guide portion 413a (413b) has the first inclined surface 4131a (413 b): when the transmission rod 43 is slidably connected with the main shaft 44, the first inclined surface 4131a is a spiral surface; when the transmission lever 43 is rotatably coupled to the main shaft 44, the first inclined surface 4131b is a flat surface.

Accordingly, the second connector 42 includes a second fixing portion 421, a second extending portion 422, and a second guide portion 423a (423b) connected in this order. The second fixing portion 421 is fixed in the second driving member 2, and the second fixing portion 421 and the second driving member 2 can be fixedly connected by clamping, welding, or fixing screws. When the second fixing portion 421 and the second driving member 2 are connected to each other in a clamped manner, the first driving member 1 is provided with a second connection portion 21, the second fixing portion 421 is inserted into the second connection portion 21, and when the second driving member 2 rotates, the second fixing portion 421 rotates along with the second driving member 2. More specifically, the second connecting portion 21 is disposed along the radial direction of the second driving element 2, the second fixing portion 421 is radially inserted into the second connecting portion 21, so that the circumferential movement of the second fixing portion 421 is synchronous with the second driving element 2, and the second extending portion 422 is disposed in the main shaft 44 in a penetrating manner, so as to save the radial space occupied by the transmission assembly 4. The second guide portion 423a (423b) has the second inclined surface 4231a (4231 b): when the transmission rod 43 is connected with the main shaft 44 in a sliding manner, the second inclined surface 4231b is a spiral surface; when the transmission rod 43 is rotatably connected to the main shaft 44, the second inclined surface 4231b is a flat surface. The first connection site 11 and the second connection site 21 may be card slots.

Referring to fig. 8, in one embodiment of the main shaft 44, a containing groove 441 is formed in the middle of the main shaft 44, the containing groove 441 is radially formed, so that the middle of the main shaft 44 is semicircular, the first guide portion 413a (413b), the second guide portion 423a (423b) and the transmission rod 43 are all disposed in the containing groove 441, and the first extension portion 412 and the second extension portion 422 are both axially disposed through the main shaft 44, so that the first extension portion 412 and the second extension portion 422 rotate coaxially with the rotating wheel 3, and the transmission rod 43 can be protected and the space can be saved. In addition, the side surfaces of the first guide portion 413a (413b) and the second guide portion 423a (423b) contacting the inner wall of the accommodating groove 441 have a limit function on the first guide portion 413a (413b) and the second guide portion 423a (423b), and prevent the driving lever 43 from being separated from the first connecting member 41 and the second connecting member 42, so that the driving lever 43 swings within a limited angle range. The main shaft 44 further defines two shaft holes 442, and the shaft holes 442 are communicated with the accommodating groove 441, and the first extending portion 412 and the second extending portion 422 are disposed through the shaft holes 442.

In any of the above embodiments of the reciprocating driving mechanism, the first driving member 1 and the rotating wheel 3, and the second driving member 2 and the rotating wheel 3 are connected in a unidirectional rotation manner through a ratchet mechanism, a unidirectional bearing or an overrunning clutch. Can realize one-way pivoted mechanism wantonly and all be applicable to the utility model discloses a reciprocating drive mechanism.

Referring to fig. 2 and 5, in one embodiment of the reciprocating driving mechanism, the first driving member 1 and the rotating wheel 3, and the second driving member 2 and the rotating wheel 3 are all connected in a unidirectional rotation manner through a ratchet mechanism. The ratchet mechanism comprises a ratchet and pawl 31, the pawl 31 being attached to the rotary wheel 3. As shown in fig. 9, the first driving member 1 and the second driving member 2 have circular inner cavities, the inner circumferential wall of the circular inner cavity has ratchet teeth 12 distributed continuously, when the first driving member 1 drives the rotation wheel 3 to rotate in a first direction, the pawl 31 is clamped between any two adjacent ratchet teeth 12, the first driving member 1 is synchronous with the motion of the rotation wheel 3, the rotation is transmitted to the second driving member 2 through the transmission assembly 4, the second driving member 2 rotates in a second direction, and the pawl 31 can retract when encountering the ratchet teeth 12, so that the forward rotation of the rotation wheel 3 is not influenced by the rotation of the second driving member 2. The ratchet 12 is arranged in the circular inner cavity, dust and sundries are not easy to enter, the movement of the ratchet mechanism is not influenced, the ratchet wheel and the driving piece are integrated into a whole, and the whole volume of the mechanism can be reduced.

In another embodiment the outer ring of the first driver 1 and the second driver 2 is provided with a continuous distribution of ratchet teeth 12, such that the first driver 1 and the second driver 2 themselves form a ratchet wheel. In another embodiment, the pawls are connected to the first driver 1 and the second driver 2, and the rotary wheel 3 has a circular distribution of ratchet teeth 12, so that the wheel 3 is a ratchet. In another embodiment one of the ratchet wheels or pawls is connected to the rotary wheel 3 and the other of the ratchet wheels or pawls is connected to the first and

second drivers

1, 2 such that the movement of the first and

second drivers

1, 2 is synchronized with the movement of the ratchet wheels.

The embodiment of the utility model provides a still provide a bicycle, the bicycle includes the reciprocating drive mechanism in any above-mentioned embodiment, still includes parts such as handlebar, frame 5, saddle.

In the bicycle of the above embodiment, the reciprocating driving mechanism is adopted, when the first driving member 1 drives the rotary wheel 3 to rotate in the first direction, the first connecting member 41 fixedly connected with the first driving member 1 drives the second connecting member 42 and the second driving member 2 to rotate in the second direction through the transmission rod 43; when the second driver 2 drives the rotor 3 to rotate in the first direction, the second link 42 fixedly connected to the second driver 2 drives the first link 41 and the first driver 1 to rotate in the second direction through the transmission rod 43. Wherein the first direction and the second direction are opposite. The embodiment of the utility model provides an in the bicycle, need not to use chain sprocket mechanism, the condition that the chain drops, rusts can not appear, the volume that this reciprocating drive mechanism occupy moreover is less, and the structure is also comparatively simple.

More specifically, the reciprocating driving mechanism is used for driving wheels, the first driving piece 1 and the second driving piece 2 are pedal shafts, and the rotating wheel 3 is a wheel. Alternatively, two ends of the main shaft 44 are disposed through the first driving element 1 and the second driving element 2, and the frame 5 is fixed to two ends of the main shaft 44.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Reciprocating drive mechanism, its characterized in that: including swiveling wheel, drive the swiveling wheel is in first direction rotatory first drive piece, drive the swiveling wheel is in first direction rotatory second drive piece and connection first drive piece with the second drive piece just makes first drive piece with second drive piece rotation direction opposite's transmission assembly, first drive piece and second drive piece are located respectively the left and right sides of swiveling wheel, first drive piece with the second drive piece all with the swiveling wheel unidirectional rotation is connected, transmission assembly is including being fixed in the first connecting piece of first drive piece, being fixed in the second connecting piece of second drive piece and being used for the transmission first connecting piece with the transfer line of the motion between the second connecting piece.

2. The reciprocating drive mechanism of claim 1, wherein: the transmission assembly further comprises a main shaft, the main shaft penetrates through the rotating wheel, and the axial direction of the main shaft is overlapped with the central shaft of the rotating wheel; the transmission rod is connected with the spindle in a sliding mode, the sliding direction of the transmission rod is parallel to the axial direction of the spindle, or the transmission rod is connected with the spindle in a swinging mode, and the rotating central shaft of the transmission rod is perpendicular to the axial direction of the spindle.

3. The reciprocating drive mechanism of claim 2, wherein: one end of the first connecting piece is arranged in the main shaft, and the other end of the first connecting piece is connected to the first driving piece; one end of the second connecting piece is arranged in the main shaft, and the other end of the second connecting piece is connected to the second driving piece.

4. The reciprocating drive mechanism of claim 2, wherein: the first connecting piece comprises a first fixing part, a first extending part and a first guide part, the first fixing part, the first extending part and the first guide part are sequentially connected, the first driving piece is provided with a first connecting position used for connecting the first fixing part, and the first extending part is arranged in the main shaft in a penetrating mode; the second connecting piece is including the second fixed part, the second extension that connect gradually and be used for promoting the second guide part of transfer line, the second driving piece has and is used for connecting the second connection position of second fixed part, the second extension is worn to locate in the main shaft.

5. The reciprocating drive mechanism of claim 4, wherein: the first guide part is provided with a first inclined surface used for pushing the transmission rod, the second guide part is provided with a second inclined surface used for pushing the transmission rod, two ends of the transmission rod are respectively abutted to the first inclined surface and the second inclined surface, and the first inclined surface and the second inclined surface are both arranged in an inclined mode relative to the central shaft of the rotating wheel.

6. The reciprocating drive mechanism of claim 4, wherein: the spindle is provided with a containing groove, and the first guide part, the second guide part and the transmission rod are all arranged in the containing groove.

7. The reciprocating drive mechanism of any of claims 1-6, wherein: the first driving part and the rotating wheel, the second driving part and the rotating wheel are connected in a one-way rotating mode through a ratchet mechanism, a one-way bearing or an overrunning clutch.

8. The reciprocating drive mechanism of claim 7, wherein: the ratchet mechanism comprises a ratchet wheel and a pawl;

the pawl is connected with the rotating wheel, and a plurality of annularly distributed ratchets are arranged on the peripheries or the inner walls of the first driving piece and the second driving piece, so that the first driving piece and the second driving piece are ratchet wheels;

or the pawl is connected with the first driving part and the second driving part, and the rotating wheel is provided with ratchets distributed annularly, so that the rotating wheel is the ratchet wheel;

alternatively, one of the ratchet wheel or the pawl is connected to the rotary wheel, and the other of the ratchet wheel or the pawl is connected to the first driving member and the second driving member.

9. Bicycle, its characterized in that: comprising a reciprocating drive mechanism as claimed in any one of claims 1 to 8.

10. The bicycle of claim 9, wherein: the first driving part and the second driving part are pedal shafts, and the rotating wheel is a wheel.