CN215752804U - Crank torque sensing device for electric bicycle - Google Patents

Abstract

The utility model discloses a crank torque sensing device for an electric bicycle, which comprises a crank, wherein a rotating shaft is fixedly connected to the outer part of the crank, the outer part of the rotating shaft is fixedly connected with a cam, the outer part of the rotating shaft is rotatably connected with a shell, the inner side of the shell is fixedly connected with a spring, the outside of the spring is fixedly connected with a slide block, the outside of the slide block is connected with a slide groove in a sliding way, the inner side of the shell is fixedly connected with an S pole, the inner side of the shell is fixedly connected with an N pole, the outer part of the sliding block is movably connected with a stop block, the outer part of the stop block is fixedly connected with a sliding plate, the outer part of the sliding plate is connected with a sliding rail in a sliding way, the outer part of the sliding rail is fixedly connected with a bracket, the outer part of the sliding plate is fixedly connected with a connecting rod, the outside of pivot is rotated and is connected with the outer lane, the outside fixedly connected with inductor of outer lane has reached the effect to crank torque induction.

Description

Crank torque sensing device for electric bicycle

Technical Field

The utility model relates to the technical field of electric bicycles, in particular to a crank torque sensing device for an electric bicycle.

Background

An electric bicycle is a widely used vehicle which is provided with a motor, a controller, a storage battery, a rotating handle brake handle and other operating components and a display instrument system in an electromechanical integration manner on the basis of a common bicycle by taking the storage battery as an auxiliary energy source; the most important characteristic is that the motor power and the pedaling force of a rider are integrated together to be used as the driving force; in order to achieve the organic combination of manpower and electric power, an induction device is required to be arranged on a crank torque transmission path of the pedal of the electric bicycle to sense the torque of a crank, and the power output by a motor is controlled according to a sensing result to reduce the pedaling force applied by a rider and reduce the tiredness of the rider.

The existing induction device is expensive and single in function, the crank torque of the pedal part of the electric bicycle is not measured, the crank torque when a rider treads the pedal cannot be judged, and manpower and electric power cannot be organically combined, so that serious potential safety hazards such as loss of control during riding, runaway during pushing and the like are easily caused.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a crank torque sensing device for an electric bicycle, which solves the problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: a crank torque sensing device for electric bicycle, including the crank, articulate outside fixedly connected with pivot, the outside fixedly connected with cam of pivot, the outside of pivot is rotated and is connected with the shell, the inboard fixedly connected with spring of shell, the outside fixedly connected with slider of spring, the outside sliding connection of slider has the spout, the inboard fixedly connected with S utmost point of shell, the inboard fixedly connected with N utmost point of shell, the outside swing joint of slider has the dog, the outside fixedly connected with slide of dog, the outside sliding connection of slide has the slide rail, the outside fixedly connected with support of slide rail, the outside fixedly connected with connecting rod of slide, the outside of pivot is rotated and is connected with the outer lane, the outside fixedly connected with inductor of outer lane.

As a preferred technical scheme, the outer part of the rotating shaft is fixedly connected with a supporting rod and a supporting rod I respectively, the specifications of the supporting rod and the supporting rod I are the same, the outer parts of the supporting rod and the supporting rod I are fixedly connected with pedals respectively, and the specifications and the sizes of the two pedals are the same.

As a preferred technical scheme of the utility model, the springs and the sliders are eight, the specifications and the sizes of the eight springs and the eight sliders are respectively the same, the eight springs are fixedly connected to the inner side of the shell, and the eight sliders are respectively and fixedly connected with the eight springs.

As a preferred technical scheme of the present invention, the number of the sliding grooves, the number of the S poles and the number of the N poles are eight, the eight sliding grooves are all fixedly connected to the inner side of the housing, the eight sliding grooves are respectively connected to the eight sliding blocks in a sliding manner, the eight S poles and the eight N poles are all fixedly connected to the inner side of the housing, the eight S poles and the eight N poles are all electrically connected to the external driver, the outer parts of the eight S poles and the eight N poles are respectively and fixedly connected to the partition plates, the specification sizes of the eight partition plates are the same, and the eight partition plates are all fixedly connected to the inner side of the housing.

As a preferable technical scheme of the utility model, the number of the check blocks, the number of the sliding plates and the number of the sliding rails are eight respectively, the eight check blocks are movably connected with the eight sliding blocks respectively and fixedly connected to the outer parts of the eight sliding plates respectively, the eight sliding plates are slidably connected with the eight sliding rails respectively, the eight sliding rails are fixedly connected to the outer parts of the brackets, and the brackets are fixedly connected to the inner side of the shell.

As a preferable technical scheme of the utility model, the number of the connecting rods is eight, the specifications and the sizes of the eight connecting rods are the same, the eight connecting rods are respectively and fixedly connected to the outer parts of the eight sliding plates, and the specifications of the eight connecting rods are matched with the specifications of the cams.

As a preferable technical scheme of the utility model, the number of the inductors is two, the two inductors are electrically connected with an external electric frequency, and the two inductors are fixedly connected to the outside of the outer ring.

Compared with the prior art, the utility model provides the crank torque sensing device for the electric bicycle, which has the following beneficial effects:

1. the crank torque sensing device for the electric bicycle is provided with a rotating shaft, a cam, a shell, a spring, a sliding block, a sliding groove, an S pole, an N pole, a stop block, a sliding plate, a sliding rail, a support, a connecting rod, an outer ring and a sensor, so that when a user steps on the pedal, the pedal can drive a supporting rod, a first supporting rod rotates, a second supporting rod rotates to drive the rotating shaft to rotate, the rotating shaft rotates to drive the cam to rotate, the cam rotates to contact with the connecting rod and extrude the connecting rod, the connecting rod can move after being extruded, the connecting rod moves to drive the sliding plate to move outside the sliding rail, the sliding plate moves to drive the stop block to move towards the sliding block, when the stop block moves to a certain position, the stop block can contact with the sliding block and drive the sliding block to move through the sliding groove, the sliding block moves to extrude the spring and can move to the middle of the S pole and the N pole so that the magnetic field of the N pole and the S pole is cut, and the magnetic field of the N pole is cut, The S pole sends a signal to an external driver, when the cam leaves the connecting rod along with the rotation of the cam, the sliding block is driven by the spring to move in the opposite direction, the sliding block moves to drive the stop block, the sliding plate and the connecting rod to return to the original positions, the cam continuously rotates along with the continuous stepping of the pedal of a user, the cam continuously contacts with the eight connecting rods while rotating, at the moment, the eight sliding blocks continuously cut a magnetic field between the N pole and the S pole, and at the moment, the driver can adjust the torque of the motor according to the received signal, so that the combination of manpower and electric power of the electric bicycle is realized, the coordinated operation is realized, and the effect of sensing the torque of the crank is achieved;

2. this a crank torque sensing device for electric bicycle, through setting up the pivot, the cam, and a housing, a spring, the slider, the spout, the S utmost point, the N utmost point, the dog, the slide, a slide rail, a support, the connecting rod, the outer lane, the inductor, make and can be sensed by the inductor when the cam rotates the position of inductor, at this moment the inductor can carry out the analysis and then reachs the distance that the user ridden to the rotational speed of cam, and the result after the analysis can be sent for outside controller, make the increase of induction system' S function.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the housing of the present invention;

FIG. 3 is an enlarged view of the structure at A of the present invention;

FIG. 4 is an enlarged view of the structure at B of the present invention;

FIG. 5 is an enlarged view of the structure at position C of the present invention.

In the figure: 1. a crank; 2. a rotating shaft; 3. a cam; 4. a housing; 5. a spring; 6. a slider; 7. a chute; 8. an S pole; 9. an N pole; 10. a stopper; 11. a slide plate; 12. a slide rail; 13. a support; 14. a connecting rod; 15. an outer ring; 16. an inductor.

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. 1-5, in this embodiment: a crank torque sensing device for an electric bicycle comprises a crank 1, a rotating shaft 2 is fixedly connected to the outer portion of the crank 1, a cam 3 is fixedly connected to the outer portion of the rotating shaft 2, a shell 4 is rotatably connected to the outer portion of the rotating shaft 2, a spring 5 is fixedly connected to the inner side of the shell 4, a sliding block 6 is fixedly connected to the outer portion of the spring 5, a sliding chute 7 is slidably connected to the outer portion of the sliding block 6, an S pole 8 is fixedly connected to the inner side of the shell 4, an N pole 9 is fixedly connected to the inner side of the shell 4, a stop block 10 is movably connected to the outer portion of the sliding block 6, a sliding plate 11 is fixedly connected to the outer portion of the stop block 10, a sliding rail 12 is slidably connected to the outer portion of the sliding plate 11, a support 13 is fixedly connected to the outer portion of the sliding plate 12, a connecting rod 14 is fixedly connected to the outer portion of the sliding plate 11, an outer ring 15 is rotatably connected to the outer portion of the rotating shaft 2, an inductor 16 is fixedly connected to the outer portion of the outer ring 15, and the crank torque sensing device for an electric bicycle, by arranging the rotating shaft 2, the cam 3, the shell 4, the spring 5, the sliding block 6, the sliding groove 7, the S pole 8, the N pole 9, the stop block 10, the sliding plate 11, the sliding rail 12, the bracket 13, the connecting rod 14, the outer ring 15 and the sensor 16, when a user steps on the pedal, the pedal can drive the supporting rod and the supporting rod rotate, the supporting rod and the supporting rod rotate to drive the rotating shaft 2 to rotate, the rotating shaft 2 rotates to drive the cam 3 to rotate, the cam 3 rotates to contact with the connecting rod 14 and extrude the connecting rod 14, the connecting rod 14 can move after being extruded, the connecting rod 14 moves to drive the sliding plate 11 to move outside the sliding rail 12, the sliding plate 11 moves to drive the stop block 10 to move towards the sliding block 6, when the stop block 10 moves to a certain position, the stop block 10 can contact with the sliding block 6 and drive the sliding block 6 to move through the sliding groove 7, the sliding block 6 can extrude the spring 5 and can move to the S pole 8, the middle of the N pole 9, so that the N pole 9, The magnetic field between the S poles 8 is cut, at the moment, the N poles 9 and the S poles 8 send signals to an external driver, when the cam 3 rotates away from the connecting rod 14, the sliding block 6 is driven by the spring 5 to move in the opposite direction, the sliding block 6 moves to drive the stop block 10, the sliding plate 11 and the connecting rod 14 to return to the original position, the cam 3 continuously rotates along with the continuous treading of a user, the cam 2 continuously contacts with the eight connecting rods 14 while rotating, at the moment, the eight sliding blocks 6 continuously cut the magnetic field between the N poles 9 and the S poles 8, at the moment, the driver can adjust the torque of the motor according to the received signals, and therefore the combination of manpower and electric power of the electric bicycle is achieved, the coordinated operation is achieved, and the effect of crank torque induction is achieved.

The outer part of the rotating shaft 2 is fixedly connected with a supporting rod and a supporting rod I respectively, the specifications of the supporting rod and the supporting rod I are the same, the outer parts of the supporting rod and the supporting rod I are fixedly connected with pedals respectively, the specifications and the sizes of the two pedals are the same, eight springs 5 and eight sliders 6 are respectively and identically arranged, the eight springs 5 are respectively and fixedly connected with the inner side of the shell 4, the eight sliders 6 are respectively and fixedly connected with the eight springs 5, the eight chutes 7, the S poles 8 and the N poles 9 are respectively and eight, the eight chutes 7 are respectively and fixedly connected with the inner side of the shell 4, the eight chutes 7 are respectively and slidably connected with the eight sliders 6, the eight S poles 8 and the N poles 9 are respectively and fixedly connected with the inner side of the shell 4, the eight S poles 8 and the outer parts of the N poles 9 are respectively and fixedly connected with a partition board, the specifications and the sizes of the eight partition boards are respectively and fixedly connected with the inner side of the shell 4, the eight stoppers 10, the slide 11, the slide rail 12 have eight respectively, eight stoppers 10 respectively with eight slider 6 swing joint and eight stoppers 10 respectively fixed connection in eight slide 11 'S outside, eight slide 11 respectively with eight slide rail 12 sliding connection, the outside of the equal fixed connection support 13 of eight slide rail 12, support 13 fixed connection is in the inboard of shell 4, connecting rod 14 has eight, eight connecting rod 14' S specification and size are the same and eight connecting rod 14 respectively fixed connection in eight slide 11 'S outside, eight connecting rod 14' S specification and cam 3 phase-match, inductor 16 has two, two inductors 16 all are connected with the external radio frequency electricity, two inductors 16 all fixed connection are in the outside of outer lane 15, through setting up pivot 2, cam 3, shell 4, spring 5, slider 6, spout 7, S utmost point 8, N utmost point 9, stoppers 10, slide 11, slide rail 12, support 13, Connecting rod 14, outer lane 15, inductor 16 for can be sensed by inductor 16 when cam 3 rotates to inductor 16's position, inductor 16 can carry out the analysis to cam 3's rotational speed at this moment and then obtain the distance that the user ridden, and the result after the analysis can be sent for outside controller, makes the increase of induction system's function.

The working principle of the utility model is as follows: when a user steps on the pedal, the pedal can drive the supporting rod and the first supporting rod to rotate, the first supporting rod and the first supporting rod rotate to drive the rotating shaft 2 to rotate, the rotating shaft 2 rotates to drive the cam 3 to rotate, the cam 3 rotates to contact with the connecting rod 14 and extrude the connecting rod 14, the connecting rod 14 moves after being extruded, the connecting rod 14 moves to drive the sliding plate 11 to move outside the sliding rail 12, the sliding plate 14 moves to drive the stop block 10 to move towards the sliding block 6, the stop block 10 moves to a certain position and contacts with the sliding block 6 and drives the sliding block 6 to move through the sliding chute 7, the sliding block 6 moves to extrude the spring 5 and moves to the middle of the S pole 8 and the N pole 9 so that a magnetic field between the N pole 9 and the S pole 8 is cut, at the moment, the N pole 9 and the S pole 8 can send signals to an external driver, and when the cam 3 rotates to leave the connecting rod 14, the sliding block 6 is driven by the spring 5 to move in the opposite direction, slider 6 removes and drives dog 10, slide 11, connecting rod 14 returns to the primary importance, make the continuous rotation of cam 3 along with the incessant footboard of stepping on of user, continuous and eight connecting rod 14 contacts in the time of cam 2 pivoted, at this moment, eight slider 6 can be incessant to the N utmost point 9, cutting motion is done to magnetic field between the S utmost point 8, at this moment the driver can be according to received signal conditioning motor moment of torsion size, thereby realize the combination of electric bicycle manpower and electric power, and can be sensed by inductor 16 when cam 3 rotates inductor 16 'S position, at this moment inductor 16 can carry out the analysis and then reach the distance that the user ridden to cam 3' S rotational speed, and the result after the analysis can be sent for outside controller, work is accomplished.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A crank torque sensing device for an electric bicycle, characterized by: comprises a crank (1), the outside of the crank (1) is fixedly connected with a rotating shaft (2), the outside of the rotating shaft (2) is fixedly connected with a cam (3), the outside of the rotating shaft (2) is rotatably connected with a shell (4), the inside of the shell (4) is fixedly connected with a spring (5), the outside of the spring (5) is fixedly connected with a sliding block (6), the outside of the sliding block (6) is slidably connected with a sliding chute (7), the inside of the shell (4) is fixedly connected with an S pole (8), the inside of the shell (4) is fixedly connected with an N pole (9), the outside of the sliding block (6) is movably connected with a check block (10), the outside of the check block (10) is fixedly connected with a sliding plate (11), the outside of the sliding plate (11) is slidably connected with a sliding rail (12), the outside of the sliding rail (12) is fixedly connected with a bracket (13), the outer fixed connection of slide (11) has connecting rod (14), the outside rotation of pivot (2) is connected with outer lane (15), the outside fixed connection of outer lane (15) has inductor (16).

2. The crank torque sensing device for the electric bicycle according to claim 1, wherein: the outer portion of the rotating shaft (2) is fixedly connected with a supporting rod and a supporting rod I respectively, the specifications of the supporting rod and the supporting rod I are the same, the outer portions of the supporting rod and the supporting rod I are fixedly connected with pedals respectively, and the specifications and the dimensions of the pedals are the same.

3. The crank torque sensing device for the electric bicycle according to claim 1, wherein: the specification and size of the springs (5) and the sliders (6) are respectively the same, the springs (5) are fixedly connected to the inner side of the shell (4), and the sliders (6) are fixedly connected with the springs (5).

4. The crank torque sensing device for the electric bicycle according to claim 1, wherein: spout (7), the utmost point of S (8), the utmost point of N (9) all have eight, eight equal fixed connection of spout (7) is respectively with eight slider (6) sliding connection in the inboard of shell (4) and eight spout (7), eight equal fixed connection of the utmost point of S (8), the utmost point of N (9) is all connected with the external drive electricity in inboard and eight S utmost point of shell (4) (8), the utmost point of N (9), eight the outside difference fixedly connected with baffle, eight of the utmost point of S (8), the utmost point of N (9) the specification and size of baffle are the same and the inboard of the equal fixed connection of eight baffles at shell (4).

5. The crank torque sensing device for the electric bicycle according to claim 1, wherein: dog (10), slide (11), slide rail (12) have eight respectively, eight dog (10) respectively with eight slider (6) swing joint and eight dog (10) fixed connection is respectively in the outside of eight slide (11), eight slide (11) respectively with eight slide rail (12) sliding connection, eight the outside of the equal fixed connection support (13) of slide rail (12), support (13) fixed connection is in the inboard of shell (4).

6. The crank torque sensing device for the electric bicycle according to claim 1, wherein: the eight connecting rods (14) are the same in specification and size, the eight connecting rods (14) are fixedly connected to the outer portions of the eight sliding plates (11) respectively, and the specifications of the eight connecting rods (14) are matched with the specifications of the cam (3).

7. The crank torque sensing device for the electric bicycle according to claim 1, wherein: the number of the inductors (16) is two, the two inductors (16) are electrically connected with an external frequency, and the two inductors (16) are fixedly connected to the outside of the outer ring (15).

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