Finger-shifting rotating handle capable of preventing magnetic steel from falling off

Abstract

The utility model discloses a finger-shifting rotating handle capable of preventing magnetic steel from falling off, which comprises a speed regulating sleeve and an inner core, the speed regulating sleeve is rotatably sleeved outside the inner core, a torsion spring is arranged between the speed regulating sleeve and the inner core in an abutting mode, the torsion spring always has the trend of resetting the speed regulating sleeve after the speed regulating sleeve rotates, and a dovetail groove is arranged on the speed regulating sleeve. A dovetail groove is formed in the inner core, magnetic steel correspondingly matched with the dovetail groove is fixedly arranged in the dovetail groove, a Hall assembly matched with the magnetic steel is fixedly arranged on the inner core, the gland is arranged on the speed regulating sleeve in a covering mode and fixedly connected with the inner core, a limiting protrusion matched with the magnetic steel in an axial limiting mode is arranged on the back face of the gland, and a gap is formed between the limiting protrusion and the magnetic steel. When the speed regulating sleeve rotates relative to the inner core, the limiting protrusions are always kept above the magnetic steel to axially limit the magnetic steel, and when the magnetic steel bounces upwards due to loosening or glue failure, the limiting protrusions can limit movement of the magnetic steel and prevent the magnetic steel from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle supplies, in particular to a finger-shift handle that prevents magnetic steel from falling off. Background Art

[0002] The thumb-shift handlebar is an important component widely used on the handlebars of electric vehicles, motorcycles and other vehicles. Its main function is to adjust the speed or brake. The core components of the thumb-shift handlebar are composed of magnets and Hall components. When the thumb-shift handlebar rotates, the magnets and Hall components inside it will induct each other, and the magnetic field will change with the rotation, and then output different voltage values ​​to issue acceleration or braking commands.

[0003] The shift knob usually includes a speed regulating sleeve and an inner core. The speed regulating sleeve is movablely arranged on the outside of the inner core. Usually, the Hall component is fixedly arranged on the inner core, and the magnet is arranged in the mounting groove of the speed regulating sleeve and fixedly connected by gluing. Although this connection method can limit the magnet in the radial direction so that it cannot move freely, the magnet is not limited in the axial direction. During long-term use, if the magnet becomes loose or the glue fails, the magnet may bounce upward or even fall off, which may cause the connection between the magnet and the Hall component to be interrupted, thereby affecting the normal operation of the shift knob and may even affect the driver's control, thereby increasing the driving risk. Therefore, it is necessary to improve it. Utility Model Content

[0004] The utility model aims to provide a finger-shift handle that prevents magnetic steel from falling off, in view of the defects and shortcomings of the prior art. The utility model has a simple and reasonable structure, is easy to operate, and the magnetic steel is limited in both radial and axial directions, so the magnetic steel is not likely to fall off.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a finger-shift turning handle for preventing magnetic steel from falling off, comprising a speed regulating sleeve and an inner core, wherein the speed regulating sleeve is rotatably sleeved on the outside of the inner core, a torsion spring is arranged between the speed regulating sleeve and the inner core, and the torsion spring always has the tendency to reset the speed regulating sleeve after rotation, a dovetail groove is arranged on the speed regulating sleeve, a magnetic steel corresponding to the dovetail groove is fixedly arranged in the dovetail groove, a Hall assembly matching with the magnetic steel is fixedly arranged on the inner core, and a pressure cover is also arranged, wherein the pressure cover is arranged on the speed regulating sleeve and fixedly connected with the inner core, a limiting protrusion matching with the axial limiting of the magnetic steel is arranged on the back side of the pressure cover, a gap is formed between the limiting protrusion and the magnetic steel, and when the speed regulating sleeve rotates relative to the inner core, the limiting protrusion always remains above the magnetic steel.

[0007] Furthermore, the limiting protrusion extends into the dovetail groove and is limitedly matched with the inner wall of the dovetail groove.

[0008] Furthermore, the gland is arranged in an annular shape, and the inner wall of the gland is provided with a plurality of slots along the circumferential direction, and the inner core is provided with flanges which correspond to the slots one by one, and the slots are snap-connected with the flanges.

[0009] Furthermore, the Hall assembly includes a Hall seat, a Hall cover plate and a Hall sensor. The Hall seat is slidably connected to the Hall cover plate. An accommodating space is formed between the Hall seat and the Hall cover plate. The Hall sensor is arranged in the accommodating space.

[0010] Furthermore, a plurality of wire slots are provided in the Hall seat, the wiring of the Hall sensor is connected to the wire slots, and the Hall cover plate is provided with wire pressing protrusions which correspond one to one with the wire slots.

[0011] Furthermore, sliding grooves are provided on the inner walls on both sides of the Hall seat, and sliding blocks that slidably cooperate with the sliding grooves are provided on the Hall cover plate.

[0012] Furthermore, the Hall seat is also provided with a glue injection hole connected to the accommodating space.

[0013] Furthermore, the inner core is provided with a mounting groove for mounting the Hall component, the inner wall of the mounting groove is provided with a slot, and the outer walls on both sides of the Hall seat are provided with plug-in blocks that are plugged into and matched with the slot.

[0014] Furthermore, the speed regulating sleeve is provided with a plurality of buttons, the inner core is provided with a control panel and control switches corresponding to the buttons one by one, and the control panel is electrically connected to the control switches.

[0015] Furthermore, the speed regulating sleeve is provided with a finger shift block, the surface of the finger shift block is provided with an anti-slip protrusion, a clamp is provided in the speed regulating sleeve, the clamp is provided with a notch, a first boss and a second boss, the first boss and the second boss are respectively arranged on both sides of the notch, a fastener is provided between the first boss and the second boss and fixedly connected by the fastener, and the inner core and the speed regulating sleeve are provided with connecting holes that cooperate with the fastener.

[0016] The beneficial effects of the utility model are as follows: the utility model discloses a finger-shift handle that prevents magnetic steel from falling off, the magnetic steel is fixedly arranged in the dovetail groove, the structural characteristics of the dovetail groove help to prevent the magnetic steel from sliding or displacing in the groove, and improves the reliability of work, the magnetic steel is fixedly connected to the dovetail groove by gluing, so that the connection between the magnetic steel and the dovetail groove is tighter and not easy to separate, and the back of the pressure cover is provided with a limiting protrusion that cooperates with the axial limiting of the magnetic steel, and a gap is formed between the limiting protrusion and the magnetic steel, when the finger-shift handle works normally, there will be no contact between the limiting protrusion and the magnetic steel, ensuring that the speed regulating sleeve can rotate smoothly and will not be stuck due to contact, and when the speed regulating sleeve rotates relative to the inner core, the limiting protrusion always remains above the magnetic steel, axially limiting the magnetic steel, and when the magnetic steel bounces upward due to loosening or failure of the glue, the limiting protrusion can effectively limit its movement and prevent the magnetic steel from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model in the first viewing angle;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model under a second viewing angle;

[0019] Figure 3 It is a schematic diagram of the exploded structure of the utility model in the third viewing angle;

[0020] Figure 4 is a schematic diagram of the exploded structure of the utility model in a fourth viewing angle;

[0021] Figure 5 It is a schematic diagram of the decomposed structure of the Hall component;

[0022] Figure 6 It is a schematic diagram of the decomposed structure of the internal structure of the speed regulating sleeve;

[0023] Figure 7 It is a schematic diagram of the structure of the gland;

[0024] Figure 8 It is a schematic diagram of the structure of the clamp.

[0025] Figure 1-8In: 1. Speed ​​regulating sleeve; 2. Inner core; 3. Torsion spring; 4. Dovetail groove; 5. Magnetic steel; 6. Hall assembly; 7. Pressure cover; 8. Limiting protrusion; 9. Slot; 10. Flange; 11. Hall seat; 12. Hall cover; 13. Hall sensor; 14. Wire insertion slot; 15. Wire pressing protrusion; 16. Slide slot; 17. Slider; 18. Glue injection hole; 19. Installation slot; 20. Slot; 21. Plug-in block; 22. Button; 23. Control switch; 24. Control board; 25. Shifter block; 26. Anti-slip protrusion; 27. Clamp; 28. Notch; 29. ​​First boss; 30. Second boss; 31. Connecting hole. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1-8 The anti-magnetic steel falling-off finger-shifting handle shown in the figure comprises a speed regulating sleeve 1 and an inner core 2. The speed regulating sleeve 1 is rotatably sleeved on the outer side of the inner core 2. A torsion spring 3 is arranged between the speed regulating sleeve 1 and the inner core 2. The torsion spring 3 always has a tendency to reset the speed regulating sleeve 1 after rotation. The speed regulating sleeve 1 is provided with a dovetail groove 4. Figure 4 , a magnetic steel 5 that matches the dovetail groove 4 is fixedly arranged in the dovetail groove 4. The dovetail groove 4 is a groove with a special cross section, and is named because its shape resembles a swallow's tail. The structural characteristics of the dovetail groove 4 help prevent the magnetic steel 5 from sliding or shifting in the groove, thereby improving the reliability of the work. Specifically, the magnetic steel 5 is fixedly connected to the dovetail groove 4 by gluing, so that the connection between the magnetic steel 5 and the dovetail groove 4 is tighter and not easy to separate. The inner core 2 is fixedly provided with a Hall assembly 6 that matches the magnetic steel 5, and a pressure cover 7 is also provided. The pressure cover 7 is covered on the speed regulating sleeve 1 and is fixedly connected to the inner core 2. See Figure 6 The back of the pressure cover 7 is provided with a limiting protrusion 8 that cooperates with the axial limiting of the magnetic steel 5. A gap is formed between the limiting protrusion 8 and the magnetic steel 5. When the finger-shifting handle works normally, there will be no contact between the limiting protrusion 8 and the magnetic steel 5, ensuring that the speed regulating sleeve 1 can rotate smoothly and will not be stuck due to contact. When the speed regulating sleeve 1 rotates relative to the inner core 2, the limiting protrusion 8 always remains above the magnetic steel 5 to limit the axial position of the magnetic steel 5. When the magnetic steel 5 bounces upward due to looseness or glue failure, the limiting protrusion 8 can effectively limit its movement to prevent the magnetic steel 5 from falling off.

[0028] Preferably, in this embodiment, the limiting protrusion 8 extends into the dovetail groove 4 and cooperates with the inner wall of the dovetail groove 4 to limit the speed regulating sleeve 1 during rotation, so that it rotates within a small range, thereby preventing the speed regulating sleeve 1 from excessive rotation.

[0029] Preferably, in this embodiment, refer to Figure 7The pressure cover 7 is arranged in an annular shape, and a plurality of grooves 9 are arranged on the inner wall of the pressure cover 7 along the circumferential direction. The inner core 2 is provided with flanges 10 which correspond to the grooves 9 one by one. The grooves 9 and the flanges 10 are snap-connected, so that the pressure cover 7 can fit tightly with the inner core 2 and is not easily displaced.

[0030] Preferably, in this embodiment, refer to Figure 5 The Hall assembly 6 includes a Hall seat 11, a Hall cover plate 12 and a Hall sensor 13. The Hall seat 11 is slidably connected to the Hall cover plate 12 for easy installation. An accommodation space is formed between the Hall seat 11 and the Hall cover plate 12, and the Hall sensor 13 is arranged in the accommodation space. The Hall sensor 13 is the core part of the Hall assembly 6, which is responsible for sensing and converting magnetic field signals. The Hall sensor 13 is arranged in the accommodation space, which is conducive to the stable operation of the Hall sensor 13.

[0031] Preferably, in this embodiment, a plurality of wire insertion slots 14 are provided in the Hall seat 11 , the wiring of the Hall sensor 13 is connected to the wire insertion slots 14 , and the Hall cover plate 12 is provided with wire pressing protrusions 15 that correspond one-to-one with the wire insertion slots 14 . Specifically, the Hall sensor 13 has three wires, and correspondingly, three wire insertion slots 14 are provided in the Hall seat 11. The wires are placed one by one in the wire insertion slots 14, and then the Hall cover 12 is slidably covered on the Hall seat 11. Preferably, in this embodiment, the inner walls on both sides of the Hall seat 11 are provided with slide grooves 16, and the Hall cover 12 is provided with sliders 17 that slide with the slide grooves 16. The wire pressing protrusions 15 of the Hall cover 12 press the wires of the Hall sensor 13 into the wire insertion slots 14 during the sliding process. The Hall seat 11 is also provided with a glue injection hole 18 connected to the accommodating space. Glue is injected through the glue injection hole 18, so that the glue overflows slightly. At this time, the Hall sensor 13 is completely sealed in the Hall seat 11, and the wires will not be exposed to the outside. The glue sealing process is adopted, and the sealing and waterproof properties are better.

[0032] Preferably, in this embodiment, a mounting groove 19 for mounting the Hall component 6 is provided on the inner core 2, a slot 20 is provided on the inner wall of the mounting groove 19, and plug-in blocks 21 for plugging and cooperating with the slot 20 are provided on the outer walls on both sides of the Hall seat 11, so that the installation is convenient and the Hall component 6 is not easily separated from the mounting groove 19.

[0033] Preferably, in this embodiment, refer to Figure 6The speed regulating sleeve 1 is provided with a plurality of buttons 22, the functions of which can be defined and set by the controller and the software program to realize functions such as gear switching or horn or light or controlling the power switch, and the inner core 2 is provided with a control board 24 and a control switch 23 corresponding to the button 22 one by one, the control board 24 is electrically connected to the control switch 23, the user presses the button 22 to trigger the control switch 23, and the function of the button 22 is realized by the electrical connection between the control switch 23 and the external functional element, and the electrical connection and the controller setting both adopt the existing technology.

[0034] Preferably, in this embodiment, the speed regulating sleeve 1 is provided with a finger shift block 25, which is used to control the rotation of the speed regulating sleeve 1 relative to the inner core 2 to achieve speed regulation, shifting or braking. The surface of the finger shift block 25 is provided with an anti-skid protrusion 26 to play an anti-skid role. The back of the finger shift block 25 is provided with a reinforcing rib to improve the structural strength of the finger shift block 25 and extend the service life of the finger shift block 25. A clamp 27 is provided inside the speed regulating sleeve 1, see Figure 8 The clamp 27 is provided with a notch 28, a first boss 29 and a second boss 30, the first boss 29 and the second boss 30 are respectively arranged on both sides of the notch 28, a fastener is provided between the first boss 29 and the second boss 30 and is fixedly connected by the fastener, the inner core 2 and the speed regulating sleeve 1 are both provided with a connecting hole 31 that cooperates with the fastener, the fastener passes through the connecting hole 31 and is fixedly connected with the first boss 29 and the second boss 30, the clamp 27 is used to fix the finger shift handle on the handlebar to prevent the finger shift handle from shaking on the handlebar, and the connection between the clamp 27 and the fastener can be riveted, pinned or threaded.

[0035] The working principle of the utility model is as follows: by pulling the finger shift block 25, the speed regulating sleeve 1 rotates relative to the inner core 2, and the magnetic steel 5 rotates synchronously with the speed regulating sleeve 1 to change the magnetic field. The Hall sensor 13 senses the magnetic steel 5 and obtains the angular displacement signal of the magnetic steel 5. According to the different strengths of the surrounding magnetic field, different voltage values ​​are output, and the voltage value is transmitted to the vehicle's speed change device as a speed signal to issue an acceleration or braking command. When the finger shift block 25 is released, the speed regulating sleeve 1 automatically resets under the action of the torsion spring 3.

[0036] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A magnetic-proof steel finger-shift throttle, comprising a speed regulating sleeve (1) and an inner core (2), wherein the speed regulating sleeve (1) is rotatably sleeved on the outside of the inner core (2), a torsion spring (3) is arranged between the speed regulating sleeve (1) and the inner core (2), and the torsion spring (3) always has a tendency to reset the speed regulating sleeve (1) after rotation, characterized in that: The speed regulating sleeve (1) is provided with a dovetail groove (4), a magnetic steel (5) corresponding to the dovetail groove (4) is fixedly provided in the dovetail groove (4), a Hall assembly (6) corresponding to the magnetic steel (5) is fixedly provided on the inner core (2), and a pressure cover (7) is also provided. The pressure cover (7) is covered on the speed regulating sleeve (1) and is fixedly connected to the inner core (2). A limiting protrusion (8) that is axially limited and matched with the magnetic steel (5) is provided on the back side of the pressure cover (7), and a gap is formed between the limiting protrusion (8) and the magnetic steel (5). When the speed regulating sleeve (1) rotates relative to the inner core (2), the limiting protrusion (8) is always kept above the magnetic steel (5).

2. The anti-magnetic steel falling-off finger-shift handle according to claim 1, characterized in that: The limiting protrusion (8) extends into the dovetail groove (4) and is limitedly engaged with the inner wall of the dovetail groove (4).

3. The anti-magnetic steel falling-off finger-shift handle according to claim 1, characterized in that: The pressure cover (7) is arranged in an annular shape, and the inner wall of the pressure cover (7) is provided with a plurality of slots (9) along the circumferential direction. The inner core (2) is provided with flanges (10) which correspond to the slots (9) one by one, and the slots (9) and the flanges (10) are connected by snapping.

4. The anti-magnetic steel falling-off finger-shift handle according to claim 1, characterized in that: The Hall assembly (6) comprises a Hall seat (11), a Hall cover plate (12) and a Hall sensor (13); the Hall seat (11) is slidably connected to the Hall cover plate (12); a receiving space is formed between the Hall seat (11) and the Hall cover plate (12); and the Hall sensor (13) is disposed in the receiving space.

5. The anti-magnetic steel falling-off finger-shift handle according to claim 4, characterized in that: The Hall seat (11) is provided with a plurality of wire insertion slots (14), the wiring of the Hall sensor (13) is connected to the wire insertion slots (14), and the Hall cover plate (12) is provided with wire pressing protrusions (15) that correspond one-to-one with the wire insertion slots (14).

6. The anti-magnetic steel falling-off finger-shift handle according to claim 4, characterized in that: Slide grooves (16) are provided on the inner walls of both sides of the Hall seat (11), and sliding blocks (17) that slidably cooperate with the slide grooves (16) are provided on the Hall cover plate (12).

7. The anti-magnetic steel falling-off finger-shift handle according to claim 4, characterized in that: The Hall seat (11) is also provided with a glue injection hole (18) which is in communication with the accommodating space.

8. The anti-magnetic steel falling-off finger-shift handle according to claim 4, characterized in that: The inner core (2) is provided with a mounting groove (19) for mounting the Hall component (6), the inner wall of the mounting groove (19) is provided with a slot (20), and the outer walls on both sides of the Hall seat (11) are provided with plug blocks (21) that are plugged into and matched with the slot (20).

9. The anti-magnetic steel falling-off finger-shift handle according to claim 1, characterized in that: The speed regulating sleeve (1) is provided with a plurality of buttons (22), the inner core (2) is provided with a control panel (24) and control switches (23) corresponding to the buttons (22) in a one-to-one manner, and the control panel (24) is electrically connected to the control switch (23).

10. The anti-magnetic steel falling-off finger-shift handle according to claim 1, characterized in that: The speed regulating sleeve (1) is provided with a finger shift block (25), the surface of the finger shift block (25) is provided with an anti-slip protrusion (26), a clamp (27) is provided inside the speed regulating sleeve (1), the clamp (27) is provided with a notch (28), a first boss (29) and a second boss (30), the first boss (29) and the second boss (30) are respectively arranged on both sides of the notch (28), a fastener is provided between the first boss (29) and the second boss (30) and is fixedly connected by the fastener, and the inner core (2) and the speed regulating sleeve (1) are both provided with a connecting hole (31) that cooperates with the fastener.

Images