CN213899780U

CN213899780U - Transmission mechanism combining crank rocker mechanism and speed change gear, and body-building rotation fan, pedal amusement raft and pedal bicycle using same

Info

Publication number: CN213899780U
Application number: CN202022301565.7U
Authority: CN
Inventors: 于成伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-08-06
Anticipated expiration: 2030-10-15

Abstract

A transmission mechanism combining a crank rocker mechanism and a change gear and a body-building rotation fan, a pedal amusement raft and a pedal bicycle applying the transmission mechanism comprise a rack, a teeterboard, the crank rocker mechanism, a change gear train, a jaw clutch, a driving shaft, a transmission shaft and a rocker shaft which are arranged on the rack in parallel, wherein a crank of the crank rocker mechanism is driven to rotate through the swing of the teeterboard, and the change gear train and the jaw clutch form a three-gear transmission for transmitting power, wherein the three-gear transmission comprises a neutral gear. The utility model discloses simple structure to bicycle, raft of travelling, body-building fan that this device's drive mechanism used can utilize sportsman's self weight drive arrangement operation, and is laborsaving interesting again.

Description

Transmission mechanism combining crank rocker mechanism and speed change gear, and body-building rotation fan, pedal amusement raft and pedal bicycle using same

Technical Field

The utility model relates to a drive mechanism that crank rocker mechanism and change gear combine and use its body-building rotation fan, footboard raft and pedal bicycle of travelling.

Background

Firstly, the current bicycle riders do circular pedaling motion, and most of the effort does not realize the maximum torque force in the effort application process, so that a plurality of bicycle enthusiasts propose the utility model of a pedal bicycle, wherein a crank rocker mechanism is adopted to replace the design of pedals and chains, but the problem of the left and right foot linkage effort application is not solved, or the problem of the consistency of the transmission rotation direction and the advancing direction is not solved, or the transmission structure is complex and high in cost, so that the bicycle riders are not absorbed and applied by the industry due to the lack of practicability.

Secondly, most people have the hobby of amusement on water, and although the yachts with pedals for advancing are also available at present, the tourists must sit and pedal with great effort, and if the tourists can pedal in a standing posture, the walking aid saves labor and can better show the body posture.

And thirdly, air conditioners and electric fans are generally adopted in fitness venues to cool the body building person, and if the energy released by athletes can be used for driving the fans, the energy-saving and environment-friendly effects are achieved.

The existing transmission system can not solve the problems, and how to adopt a set of transmission mechanism to utilize the devices to solve the problems in the devices is a technical problem which is worthy of being solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides an above-mentioned not enough of technique and provide a simple structure, let the crank rocker mechanism that combines together of travelling and body-building exercise and the drive mechanism that change gear combines and use its body-building rotation fan, footboard raft and pedal bicycle of travelling.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

a transmission mechanism combining a crank rocker mechanism and a speed change gear comprises a rack 1, a driving shaft 2, a transmission shaft 3, a rocker shaft 4, a seesaw 8, a crank rocker mechanism and the speed change gear mechanism, wherein the driving shaft 2, the transmission shaft 3 and the rocker shaft 4 are arranged in parallel and are installed on the rack 1 through bearings; the driving shaft 2 is connected with the transmission shaft 3 through the speed change gear mechanism, and the driving shaft 2 is connected with the rocker shaft 4 through the crank rocker mechanism; two ends of the seesaw 8 are movable ends, the middle part of the seesaw 8 is fixed on the rocker shaft 4, and the seesaw 8 drives the rocker shaft 4 to do reciprocating motion in a rotating way; the transmission shaft 3 is an output shaft of the transmission mechanism.

In the embodiment, the crank-rocker mechanism comprises a crank 5, a connecting rod 6 and a rocker 7, wherein the crank 5 and a guide wheel 17 are respectively and coaxially fixed at two ends of the driving shaft 2; the crank 5 is connected with a rocker 7 through a connecting rod 6, and the rocker 7 and a seesaw 8 are respectively fixed at two ends of the rocker shaft 4.

In this embodiment, a dog clutch is installed between the driving shaft 2 and the speed change gear mechanism, the dog clutch includes a first half clutch 10, a second half clutch 11 and a bidirectional half clutch 12, the bidirectional half clutch 12 is connected with the driving shaft 2 through splines or guide keys, a seated bearing 9 is respectively fixed on both sides of the bidirectional half clutch 12, the first half clutch 10 is fixed on the seated bearing inner ring on one side, the second half clutch 11 is fixed on the seated bearing inner ring on the other side, the speed change gear mechanism includes a first driving gear 16, a second driving gear 18, a first driven gear 19 and a second driven gear 20, the first driving gear 16 is fixed on the first half clutch 10, the second driving gear 18 is fixed on the second half clutch 11, the first driven gear 19 and the second driven gear 20 are fixed on the transmission shaft 3, the gear ratio of the first gear drive gear 16 and the first gear driven gear 19 is smaller than the gear ratio of the second gear drive gear 18 and the second gear driven gear 20.

In the present embodiment, the operating mechanism for the axial movement of the bidirectional half clutch 12 includes a thin-walled bearing 13, a shifting fork 14, a compression spring 21 and a gear groove 22; the inner ring of the thin-wall bearing 13 is fixedly connected with the bidirectional half clutch 12, the fork opening of the shifting fork 14 is fixedly connected with the outer ring of the thin-wall bearing 13, the shifting rod of the shifting fork 14 extends out of the gear groove 22, three gears including a first gear, a neutral gear and a second gear are arranged on the gear groove 22, and one end of the compression spring 21 is connected with the shifting rod of the shifting fork 14 connected with the other end of the rack 1.

As a first implementation manner of the above implementation manners, a body-building self-rotating fan comprises the above transmission mechanism, wherein a fan blade is fixed on the output end of the transmission shaft, and a protective mesh enclosure is arranged outside the fan blade.

As a second embodiment of the above embodiments, a pedal amusement raft includes the above transmission mechanism, and a propeller is fixed to an output end of the transmission shaft.

As a third embodiment of the above embodiments, a pedal bicycle comprises the above transmission mechanism, wherein a bevel gear 15 is fixed on the output end of the transmission shaft, and the bevel gear 15 is engaged with a bevel gear on a bicycle driving wheel.

By adopting the structure, the transmission mechanism of the device swings up and down through the two ends of the seesaw, the transmission shaft is driven to rotate according to the principle of the crank rocker mechanism and the gear transmission principle, and the force is straight up and straight down when treading, so that the transmission mode of the existing transmission mechanism is changed, and when the device is applied to a body-building rotation fan, a pedal amusement raft and a chainless bicycle, the device can be driven to operate by utilizing the self weight, and the device is more interesting due to the unique treading mode.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a front view of embodiment 1 of the present invention.

In the attached drawing, 1, a frame, 2, a driving shaft, 3, a transmission shaft, 4, a rocker shaft, 5, a crank, 6, a connecting rod, 7, a rocker, 8, a seesaw, 9, a bearing with a seat, 10, a first-gear half clutch, 11, a second-gear half clutch, 12, a two-way half clutch, 13, a thin-wall bearing, 14, a shifting fork, 15, a bevel gear, 16, a first-gear driving gear, 17, a guide wheel, 18, a second-gear driving gear, 19, a first-gear driven gear, 20, a second-gear driven gear, 21, a compression spring, 22, a gear groove, 23, a fan blade and 24 are protection mesh enclosures.

Detailed Description

For a better understanding of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and the embodiments, however, the present invention is not limited thereto, and the protection scope of the present invention also relates to the equivalent technical means that can be conceived by those skilled in the art according to the inventive concept.

As shown in fig. 1 and 2, a transmission mechanism combining a crank rocker mechanism and a speed change gear comprises a frame 1, a driving shaft 2, a transmission shaft 3, a rocker shaft 4, a crank rocker mechanism and a speed change gear mechanism, wherein the driving shaft 2, the transmission shaft 3 and the rocker shaft 4 are arranged in parallel and are mounted on the frame 1 through bearings; the driving shaft 2 is connected with the transmission shaft 3 through the speed change gear mechanism, and the driving shaft 2 is connected with the rocker shaft 4 through the crank rocker mechanism; two ends of the seesaw 8 are movable ends, the middle part of the seesaw 8 is fixed on the rocker shaft 4, and the seesaw 8 drives the rocker shaft 4 to do reciprocating motion in a rotating way; the transmission shaft 3 is an output shaft of a transmission mechanism, a jaw clutch is arranged between the driving shaft 2 and the speed change gear mechanism, the jaw clutch comprises a first-gear half clutch 10, a second-gear half clutch 11 and a two-way half clutch 12, the two-way half clutch 12 is connected with the driving shaft 2 through splines or guide keys, a bearing with a seat 9 is respectively fixed on two sides of the two-way half clutch 12 of the frame, the first-gear half clutch 10 is fixed on an inner ring of the bearing with a seat on one side, the second-gear half clutch 11 is fixed on an inner ring of the bearing with a seat on the other side, the speed change gear mechanism comprises a first-gear driving gear 16, a second-gear driving gear 18, a first-gear driven gear 19 and a second-gear driven gear 20, the first-gear driving gear 16 is fixed on the first-gear half clutch 10, the second-gear driving gear 18 is fixed on the second-, the first gear driven gear 19 and the second gear driven gear 20 are fixed on the transmission shaft 3, and the transmission ratio of the first gear driving gear 16 and the first gear driven gear 19 is smaller than that of the second gear driving gear 18 and the second gear driven gear 20.

In this embodiment, the operating mechanism for the axial movement of the two-way half clutch 12 includes a thin-wall bearing 13, a shifting fork 14, a compression spring 21 and a shift slot 22, the inner ring of the thin-wall bearing 13 is fixedly connected with the two-way half clutch 12, the fork opening of the shifting fork 14 is fixedly connected with the outer ring of the thin-wall bearing 13, the shifting rod of the shifting fork 14 extends out of the shift slot 22, the shift slot 22 is provided with three gears, namely a first gear, a neutral gear and a second gear, and one end of the compression spring 21 is connected with the shifting rod of the shifting fork 14 connected with the other end of the rack 1.

The compression spring 21 presses the shift lever of the shifting fork in the semicircular gear of the gear groove 22, so that the clutch is prevented from being disengaged on one hand, and the clutch is convenient for a player to enter the gear when the player operates the clutch on the other hand.

Example 1: this drive mechanism can be used to body-building fan the utility model discloses a 3 terminal fan blades 23 of installing of transmission shaft, the protection screen panel 24 of fan blade is fixed in the frame, has just formed a body-building fan. During initial movement, the rotating guide wheel 17 can be used to determine the rotating direction of the fan blades 23, and then the fan blades 23 can continuously rotate by stepping or shaking the two ends of the seesaw 8.

Example 2: this drive mechanism can be used to the footboard raft of travelling the utility model discloses a screw is installed to 3 ends of transmission shaft to form the pedal raft of travelling of three fender speed governing.

Example 3: this drive mechanism can be used to no chain bicycle, the utility model relates to a during drive mechanism of bicycle, transmission shaft 3 is laid in the centre of driving shaft 2 and rocker shaft 4, installs bevel gear 15 on transmission shaft 3's the end, bevel gear 15 forms the linkage with the bevel gear meshing on the bicycle rear wheel, the reel that shifts shift fork 14 and bicycle handlebar passes through wire rope and links to each other, can realize the walking of bicycle through trampling seesaw 8, the inertia that the bicycle gos forward can be for crank 5's rotation orientation, guarantee that the wheel rolls forward.

The terms of upper, lower, left and right are used for convenience of description, are not absolute terms, and can be adjusted in practical application without damaging the protection rights of the invention. The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a drive mechanism that crank rocker mechanism and change gear combine which characterized in that: the transmission mechanism comprises a rack (1), a driving shaft (2), a transmission shaft (3), a rocker shaft (4), a crank-rocker mechanism, a seesaw (8) and a speed change gear mechanism, wherein the driving shaft (2), the transmission shaft (3) and the rocker shaft (4) are arranged in parallel and are installed on the rack (1) through bearings; the driving shaft (2) is connected with the transmission shaft (3) through the speed change gear mechanism, and the driving shaft (2) is connected with the rocker shaft (4) through the crank-rocker mechanism; the two ends of the seesaw (8) are movable ends, the middle part of the seesaw is fixed on the rocker shaft (4), and the seesaw (8) drives the rocker shaft (4) to do rotary reciprocating motion; the transmission shaft (3) is an output shaft of the transmission mechanism.

2. The crank and rocker mechanism and ratio gear combination transmission of claim 1, wherein: the crank and rocker mechanism comprises a crank (5), a connecting rod (6) and a rocker (7), and the crank (5) and the guide wheel (17) are respectively and coaxially fixed at two ends of the driving shaft (2); the crank (5) is connected with a rocker (7) through a connecting rod (6), and the rocker (7) and a seesaw (8) are respectively fixed at two ends of a rocker shaft (4).

3. The crank and rocker mechanism and ratio gear combination transmission of claim 1, wherein: the gear transmission mechanism comprises a first gear driving gear (16), a second gear driving gear (18), a first gear driven gear (19) and a second gear driven gear (20), wherein the first gear driving gear (16) is fixed on the first gear half clutch (10), the second gear driving gear (16) is fixed on the second gear half clutch (10), the second gear half clutch (18) is fixed on the second gear half clutch (10), the driving gear (18) is fixed on the second gear half clutch (11), the first gear driven gear (19) and the second gear driven gear (20) are fixed on the transmission shaft (3), and the transmission ratio of the first gear driving gear (16) to the first gear driven gear (19) is smaller than that of the second gear driving gear (18) to the second gear driven gear (20).

4. A crank and rocker mechanism and ratio gear combination transmission as claimed in claim 3 wherein: the control mechanism for the axial movement of the bidirectional half clutch (12) comprises a thin-wall bearing (13), a shifting fork (14), a compression spring (21) and a gear groove (22); the inner ring of the thin-wall bearing (13) is fixedly connected with the bidirectional half clutch (12), a fork opening of the shifting fork (14) is fixedly connected with an outer ring of the thin-wall bearing (13), a shifting rod of the shifting fork (14) extends out of a gear groove (22), three gears including a first gear, a neutral gear and a second gear are arranged on the gear groove (22), and one end of the compression spring (21) is connected with the shifting rod of the shifting fork (14) which is connected with the other end of the rack (1).

5. An exercise spinning fan comprising the transmission mechanism of any one of claims 1 to 4, wherein: the fan blade (23) is fixed on the output end of the transmission shaft, and a protective mesh cover (24) is arranged outside the fan blade (23).

6. A pedal amusement raft comprising a drive mechanism according to any one of claims 1 to 4, characterized in that: and a propeller is fixed at the output end of the transmission shaft.

7. A pedal bicycle comprising a transmission mechanism as claimed in any one of claims 1 to 4, characterized in that: a bevel gear (15) is fixed on the output end of the transmission shaft, and the bevel gear (15) is meshed with a bevel gear on a driving wheel of the bicycle.