A floating finger shift mechanism

Abstract

The present invention relates to the field of electric scooter testing, and specifically to a floating shift mechanism for use on an electric scooter test bench. The mechanism comprises a floating device and a shift mechanism. The first end of the floating device is mounted on the electric scooter test bench. The floating device comprises two sets of interconnected slider modules, the movement directions of the two sets of slider modules being perpendicular to each other in the same plane. One end of the shift mechanism is an access end, which is equipped with a shift sleeve for accessing a scooter handle and a shift handle rotatably arranged on the shift sleeve for shifting the scooter gear. The other end of the shift mechanism is a connecting end, which is equipped with a connecting sleeve coaxially arranged and fixedly connected to the shift sleeve. The connecting sleeve is fixedly connected to the second end of the floating device to enable the shift sleeve to float in a radial plane. The mechanism solves the technical problem that a detection device cannot adaptively place the handle of an electric scooter with a fixed body and an error in the handle into a detection position and perform automatic gear shifting detection.

Description

Technical Field

[0001] The invention relates to the field of electric scooter testing, in particular to a floating finger shift mechanism. Background Art

[0002] Electric scooters are based on traditional human-powered scooters, but with an electric powertrain. They are generally available in two-wheel or single-wheel drive configurations. The most common drive systems are hub motors (HUBs) and belt drives, respectively. Their primary power source is a lithium battery pack.

[0003] The handle and gear button of the electric scooter targeted by this application are as follows Figure 1 As shown, due to manufacturing and assembly errors, the handlebar positions of the electric scooters actually produced may be inconsistent. However, the tooling used to insert the handle of the electric scooter's inspection device into the electric scooter is often fixed, which brings great inconvenience to the inspection work of the electric scooter. Summary of the Invention

[0004] In order to solve the technical problem that the existing detection device cannot adaptively place the handle of an electric scooter with a fixed body and errors into the detection position and perform automatic gear shifting detection, the present invention provides a floating finger shifting mechanism to solve the above technical problem.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] The present invention provides a floating shift mechanism for a test bench for an electric scooter, comprising: a floating device, a first end of the floating device being assembled on the test bench for the electric scooter, the floating device comprising two groups of interconnected slider modules, the movement directions of the two groups of slider modules being perpendicular to each other in the same plane; a shift device, one end of the shift device being an access end, the access end being equipped with a shift sleeve for accessing a scooter handle and a shift handle rotatably arranged on the shift sleeve for shifting the scooter gear, the other end of the shift device being a connecting end, the connecting end being equipped with a connecting sleeve coaxially arranged and fixedly connected to the shift sleeve, and the connecting sleeve being fixedly connected to the second end of the floating device to achieve floating of the shift sleeve in a radial plane.

[0007] Furthermore, the slider module includes a fixed block and a movable block that can slide linearly with each other, and the fixed blocks and movable blocks of the two groups of slider modules are connected in sequence. The fixed block located at the first end of the floating device is used to be connected to the test bench of the electric scooter, and the movable block located at the second end of the floating device is fixedly connected to the connecting end.

[0008] Furthermore, the slider module further includes a reset spring, and the reset spring is arranged between the fixed block and the movable block to reset the movable block.

[0009] Furthermore, the return spring extends along the sliding direction of the movable block, and two ends of the return spring are respectively fixed to the corresponding fixed block and movable block by means of connecting pins.

[0010] Furthermore, one end of the shift handle protrudes axially from the shift sleeve and forms a shift end for shifting the gear of the scooter. The other end of the shift handle is fixedly connected to a rotating sleeve, and the rotating sleeve is rotatably mounted on the shift sleeve.

[0011] Furthermore, a through hole extending along the axial direction is formed at the axis center of the finger shift sleeve, and a rotatable central shaft is arranged in the through hole. At the same time, a circumferential hollow ring is formed on the side wall of the finger shift sleeve, and a drive pin is movably arranged in the circumferential hollow ring. One end of the drive pin is fixed to the first end of the central shaft, and the other end of the drive pin is fixedly connected to the rotating sleeve.

[0012] Furthermore, the shifting device also includes a driving motor fixed to the connecting sleeve, and the driving motor drives the central rotating shaft through a belt. The second end of the central rotating shaft protrudes from the shifting sleeve and extends into the center hole of the connecting sleeve. At the same time, an opening is formed on the side wall of the connecting sleeve, and the opening is opposite to the second end of the central rotating shaft to facilitate the passage of the belt.

[0013] Furthermore, the driving motor is a stepping motor.

[0014] Furthermore, the end of the through hole of the shift sleeve away from the connecting sleeve is formed into an access end of a trumpet-shaped mouth.

[0015] Furthermore, it also includes a transfer device, and the floating device is connected to the test bench of the electric scooter through the transfer device. The transfer device includes: a first connecting member, the first connecting member is fixedly connected to the test bench of the electric scooter; a first driving cylinder, the first driving cylinder is configured on the connecting member; a second connecting member, the second driving cylinder is fixedly connected to the piston rod of the first driving cylinder; a second driving cylinder, the second driving cylinder is configured on the second connecting member, the movement direction of the piston rod of the second driving cylinder is perpendicular to the movement direction of the piston rod of the first driving cylinder and is in the same plane, and the piston rod of the second driving cylinder is fixedly connected to the first end of the floating device.

[0016] Based on the above technical solution, the technical effects that can be achieved by the present invention are:

[0017] The floating shift mechanism of the present application includes a shift sleeve connected to the handle of the scooter. After the scooter handle is placed in the shift sleeve, the shift handle rotates outside the shift sleeve along the circumference of the shift sleeve. The rotated shift handle will touch the gear button of the electric scooter to realize automatic shift detection of the test bench. At the same time, the arrangement of the two sets of interconnected slider modules of the floating device allows the shift sleeve to perform a certain floating displacement within its radial plane, so that the handle of the electric scooter with a fixed body and an error can be adaptively placed in the detection position. In summary, the floating shift mechanism of the present application solves the technical problem that the existing detection device cannot adaptively place the handle of the electric scooter with a fixed body and an error into the detection position and perform automatic shift detection.

[0018] The setting of the transfer device of the floating finger shift mechanism of the present application enables the test bench of the electric scooter to first move the finger shift sleeve to a suitable initial position through the transfer device to connect to the handle of the scooter when testing electric scooters of the same specifications and models. When in use, the finger shift sleeve can be extended for testing. After the test is completed, the finger shift sleeve is retracted to a non-obstructive position through the transfer device, and will not interfere with the working area.

[0019] The through-hole of the shift sleeve of the floating shift mechanism of the present application is formed into a trumpet-shaped access end at the end away from the connecting sleeve. This trumpet-shaped access end facilitates the insertion of the scooter handle into the shift sleeve within a certain tolerance range, while the non-reduced diameter portion of the through-hole is responsible for securing the handle.

[0020] The driving motor for driving the shift handle of the floating shift mechanism of the present application is a stepping motor. In this way, through the rotational motion of the stepping motor, the electric scooter can be moved continuously or intermittently, and the gears of the electric scooter can be shifted in different ways. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the handle of an electric scooter;

[0022] Figure 2 It is a schematic diagram of the overall structure of the floating finger shifting mechanism of the present invention;

[0023] Figure 3 A schematic diagram of the floating finger shifting mechanism of the present invention from another perspective;

[0024] Figure 4 A schematic diagram of the floating finger shifting mechanism of the present invention from another perspective;

[0025] Figure 5 for Figure 4 Cross-section view in the AA direction.

[0026] Among them: a-sliding car handle; b-gear button; 1-floating device, 11-slider module, 111-fixed block, 112-moving block, 113-reset spring, 114-connecting pin; 2-finger shifting device, 21-finger shifting sleeve, 211-through hole, 212-circumferential hollow ring, 213-access end, 22-finger shifting handle, 221-finger shifting end, 222-rotating sleeve, 23-connecting sleeve, 231-opening, 24-center rotating shaft, 25-driving pin, 26-driving motor, 27-belt; 3-transfer device, 31-first connecting member, 32-first driving cylinder, 33-second connecting member, 34-second driving cylinder. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0030] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0033] like Figure 1-5 As shown, the floating shift mechanism of the present application is used for a test bench for an electric scooter, and includes a floating device 1 and a shift device 2. The first end of the floating device 1 is assembled on the test bench for the electric scooter. The floating device 1 includes two sets of slider modules 11 connected to each other. The movement directions of the two sets of slider modules 11 are perpendicular to each other in the same plane. One end of the shift device 2 is an access end 213. The access end 213 is provided with a shift sleeve 21 for accessing the scooter handle a and a shift handle 22 rotatably arranged on the shift sleeve 21 for shifting the scooter gear. The other end of the shift device 2 is a connecting end, and the connecting end is provided with a connecting sleeve 23 coaxially arranged and fixedly connected to the shift sleeve 21. At the same time, the connecting sleeve 23 is fixedly connected to the second end of the floating device 1 to achieve floating of the shift sleeve 21 in the radial plane.

[0034] The floating shift mechanism of the present application includes a shift sleeve 21 connected to the handle a of the scooter. After the handle a of the scooter is placed in the shift sleeve 21, the shift handle 22 rotates outside the shift sleeve 21 along the circumference of the shift sleeve 21. The rotated shift handle 22 will touch the gear button b of the electric scooter to realize automatic shift detection of the test bench. At the same time, the two sets of interconnected slider modules 11 of the floating device 1 are arranged so that the shift sleeve 21 can perform a certain floating displacement within its radial plane, so that the handle a of the electric scooter with a fixed body and an error can be adaptively placed in the detection position. In summary, the floating shift mechanism of the present application solves the technical problem that the existing detection device cannot adaptively place the handle a of the electric scooter with a fixed body and an error into the detection position and perform automatic shift detection.

[0035] In order to achieve floating displacement of the shift sleeve 21 within its radial plane, the slider module 11 includes a fixed block 111 and a movable block 112 that can slide linearly with respect to each other, and the fixed blocks 111 and movable blocks 112 of the two sets of slider modules 11 are connected in sequence. The fixed block 111 located at the first end of the floating device 1 is used to connect to the test bench of the electric scooter, and the movable block 112 located at the second end of the floating device 1 is fixedly connected to the connecting end.

[0036] To facilitate inspection, the slider module 11 further includes a return spring 113, which is disposed between the fixed block 111 and the movable block 112 to reset the movable block 112. In this way, before inspecting one electric scooter, the shift sleeve 21 can return to its initial position to facilitate the insertion of the next electric scooter.

[0037] Specifically, the return spring 113 extends along the sliding direction of the movable block 112 , and two ends of the return spring 113 are fixed to the corresponding fixed block 111 and movable block 112 respectively by means of connecting pins 114 .

[0038] In a specific embodiment of the present application, one end of the shift handle 22 is formed as a shift for shifting the gears of the scooter, and the other end of the shift handle 22 is fixedly connected to a rotating sleeve 222, which can be rotatably mounted on the shift sleeve 21 to more conveniently realize the rotation of the shift handle 22.

[0039] Furthermore, a through hole 211 extending axially is formed at the axis center of the finger shift sleeve 21, and a rotatable central shaft 24 is arranged in the through hole 211. At the same time, a circumferential hollow ring 212 is formed on the side wall of the finger shift sleeve 21, and a drive pin 25 is movably arranged in the circumferential hollow ring 212. One end of the drive pin 25 is fixed to the first end of the central shaft 24, and the other end of the drive pin 25 is fixedly connected to the rotating sleeve 222.

[0040] Furthermore, the shifting device 2 also includes a drive motor 26 fixed to the connecting sleeve 23. The drive motor 26 drives the central rotating shaft 24 through a belt 27. The second end of the central rotating shaft 24 protrudes from the shifting sleeve 21 and extends into the center hole of the connecting sleeve 23. At the same time, an opening 231 is formed on the side wall of the connecting sleeve 23. The opening 231 is opposite to the second end of the central rotating shaft 24 to facilitate the passage of the belt 27.

[0041] Preferably, the driving motor 26 is a stepping motor. Thus, the electric scooter can be driven to move continuously or intermittently through the rotation of the stepping motor, and the gears of the electric scooter can be shifted in different ways.

[0042] Preferably, the end of the through hole 211 of the shift sleeve 21 away from the connecting sleeve 23 is formed into a trumpet-shaped access end 213. This trumpet-shaped access end 213 can facilitate the insertion of the scooter handle a into the shift sleeve 21 within a certain tolerance range, while the non-reduced diameter portion of the through hole 211 is responsible for securing the scooter handle a.

[0043] In a preferred embodiment, the floating finger shifting mechanism of the present application also includes a transfer device 3, and the floating device 1 is connected to the test bench of the electric scooter through the transfer device 3. The transfer device 3 includes a first connecting member 31, a first driving cylinder 32, a second connecting member 33 and a second driving cylinder 34. The first connecting member 31 is fixedly connected to the test bench of the electric scooter, the first driving cylinder 32 is arranged on the connecting member, the second connecting member 33 is fixedly connected to the piston rod of the first driving cylinder 32, and the second driving cylinder 34 is arranged on the second connecting member 33. The movement direction of the piston rod of the second driving cylinder 34 is perpendicular to the movement direction of the piston rod of the first driving cylinder 32 in the same plane, and the piston rod of the second driving cylinder 34 is fixedly connected to the first end of the floating device 1. The setting of the transfer device 3 enables the electric scooter test bench to first transfer the finger shift sleeve 21 to a suitable initial position through the transfer device 3 to connect to the handle a of the scooter when testing electric scooters of the same specifications and models. When in use, the finger shift sleeve 21 can be extended to perform testing. After the test is completed, the finger shift sleeve 21 is retracted to a non-obstructive position through the transfer device 3, so as not to interfere with the working area.

[0044] It should be understood that the specific embodiments described above are only used to explain the present invention and are not intended to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A floating finger shift mechanism, used for a test bench for electric scooters, characterized in that: include; A floating device (1), wherein a first end of the floating device (1) is mounted on a test bench of an electric scooter, and the floating device (1) comprises two sets of mutually connected slider modules (11), wherein the movement directions of the two sets of slider modules (11) are perpendicular to each other in the same plane; A shifting device (2), one end of the shifting device (2) is an access end (213), the access end (213) is provided with a shifting sleeve (21) for accessing a scooter handle (a) and a shifting handle (22) rotatably provided on the shifting sleeve (21) for shifting the scooter gear, the other end of the shifting device (2) is a connecting end, the connecting end is provided with a connecting sleeve (23) coaxially provided with and fixedly connected to the shifting sleeve (21), and at the same time, the connecting sleeve (23) is fixedly connected to the second end of the floating device (1) to achieve floating of the shifting sleeve (21) in a radial plane; The slider module (11) includes a fixed block (111) and a movable block (112) that can slide linearly with each other, and the fixed blocks (111) and movable blocks (112) of the two groups of slider modules (11) are connected in sequence, the fixed block (111) located at the first end of the floating device (1) is used to be connected to the test bench of the electric scooter, and the movable block (112) located at the second end of the floating device (1) is fixedly connected to the connecting end; The slider module (11) further includes a reset spring (113), wherein the reset spring (113) is arranged between the fixed block (111) and the movable block (112) to reset the movable block (112); One end of the shift handle (22) protrudes from the shift sleeve (21) along the axial direction and forms a shift end (221) for shifting the gear position of the scooter, and the other end of the shift handle (22) is fixedly connected to a rotating sleeve (222), and the rotating sleeve (222) is rotatably sleeved on the shift sleeve (21); The device further comprises a transfer device (3), wherein the floating device (1) is connected to a test bench of the electric scooter via the transfer device (3), and the transfer device (3) comprises: A first connecting member (31), the first connecting member (31) being fixedly connected to a test bench of the electric scooter; a first driving cylinder (32), the first driving cylinder (32) being arranged on the connecting member; a second connecting member (33), the second connecting member (33) being fixedly connected to the piston rod of the first driving cylinder (32); A second driving cylinder (34), the second driving cylinder (34) is arranged on the second connecting member (33), the movement direction of the piston rod of the second driving cylinder (34) and the movement direction of the piston rod of the first driving cylinder (32) are perpendicular to each other in the same plane, and the piston rod of the second driving cylinder (34) is fixedly connected to the first end of the floating device (1).

2. The floating finger shifting mechanism according to claim 1, characterized in that: The return spring (113) extends along the sliding direction of the movable block (112), and the two ends of the return spring (113) are respectively fixed to the corresponding fixed block (111) and movable block (112) by means of connecting pins (114).

3. The floating finger shifting mechanism according to claim 1, characterized in that: A through hole (211) extending in the axial direction is formed at the axis center of the finger shift sleeve (21), and a rotatable central shaft (24) is arranged in the through hole (211). At the same time, a circumferential hollow ring (212) is formed on the side wall of the finger shift sleeve (21), and a driving pin (25) is movably arranged in the circumferential hollow ring (212), one end of the driving pin (25) is fixed to the first end of the central shaft (24), and the other end of the driving pin (25) is fixedly connected to the rotating sleeve (222).

4. The floating finger shifting mechanism according to claim 3, characterized in that: The finger shifting device (2) further comprises a driving motor (26) fixed on the connecting sleeve (23), wherein the driving motor (26) drives the central rotating shaft (24) via a belt (27), wherein the second end of the central rotating shaft (24) protrudes from the finger shifting sleeve (21) and extends into the central hole of the connecting sleeve (23), and an opening (231) is formed on the side wall of the connecting sleeve (23), wherein the opening (231) is opposite to the second end of the central rotating shaft (24) to facilitate the passage of the belt (27).

5. The floating finger shifting mechanism according to claim 4, characterized in that: The driving motor (26) is a stepping motor.

6. The floating finger shifting mechanism according to claim 3, characterized in that: An end of the through hole (211) of the finger shift sleeve (21) away from the connecting sleeve (23) is formed into an access end (213) with a trumpet-shaped opening.

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