FNR power reversing handle

Abstract

An FNR power reversing handle comprises a rocker, a support, a shell, a magnet and a magnetic induction element, the middle of the rocker is movably fixed to the support, one end of the rocker is connected with a handle head, the other end of the rocker is provided with an elastic pin structure located in the shell, the elastic pin structure abuts against a sliding rail in the shell, the sliding rail is provided with an F position, an N position and an R position, and mistake-proof limiting positions are arranged between the N position and the F position and between the N position and the R position; the support is fixed in the shell, and a plug is arranged at the bottom of the shell and electrically connected with the outside. When the handle is operated, the elastic pin at the tail end of the rocker moves along the sliding rail, the magnet moves along with the rocker, and the magnetic induction element is triggered to output electric signals of corresponding gears.

Description

Technical Field

[0001] This invention relates to the field of tractor parts technology, and in particular to an FNR power reversing handle. Background Technology

[0002] Traditional tractor power reversing mechanisms are primarily mechanical. They transmit the lever's movement to a gearbox mechanism via a control lever and transmission components. A shift fork then drives gears axially, causing different gears to mesh or disengage, thus changing the direction of power transmission and enabling forward and reverse reversing operations. Traditional mechanical reversing is relatively complex, requiring considerable force to push the lever and exhibiting a jerky feel during reversal. Furthermore, due to the mechanical connection, it is prone to wear and tear over time, resulting in inaccurate positioning and unstable signal transmission. This invention aims to provide an FNR power reversing handle that offers precise positioning, reliable signal transmission, and excellent protection. Utility Model Content

[0003] The power reversing handle provided in this invention application allows for forward and backward power reversal via finger-operated control, realizing electronic control of tractor power reversing. Specifically, an FNR power reversing handle includes a rocker arm, a bracket, a housing, a magnet, and a magnetic induction element, characterized in that...

[0004] The middle part of the rocker arm is movably fixed to the bracket, and one end of the rocker arm is connected to the handle head.

[0005] The other end is provided with a spring pin structure located inside the housing. The spring pin structure abuts against the slide rail inside the housing. The slide rail has three positions: F, N, and R. An anti-misalignment limit is provided between the N and F and R positions.

[0006] The bracket is fixed inside the housing, and a plug is provided at the bottom of the housing for electrical connection to the outside.

[0007] When the handle is operated, the spring pin at the end of the joystick moves along the slide rail, and the magnet moves with the joystick, triggering the magnetic induction element to output an electrical signal corresponding to the gear position.

[0008] Furthermore, the spring-loaded pin structure includes a spring disposed within the rocker arm and a pin connected to the spring. The other end of the pin abuts against a slide rail inside the housing, and under the action of the spring, it makes precise contact with the slide rail to achieve accurate positioning.

[0009] Furthermore, the magnetic sensing element is located on a PCB board, which is situated within a slot at the bottom of the housing and sealed by a sealing plate. A plug is also located at the bottom of the housing, containing four pins for external electrical connection. The magnetic sensing element is one of the following: a reed switch, a magnetoresistive element, or a Hall effect sensor.

[0010] Furthermore, the reversing handle also includes a protective housing that seals the housing. The power reversing handle also includes a sensitivity adjustment assembly, mounted on the protective housing and connected to the PCB.

[0011] Furthermore, the reversing handle also includes a multi-layer folding protective sleeve, which is connected between the handle head and the protective shell. This effectively prevents water and dust, extends the service life of the handle, and makes it neater and more aesthetically pleasing, enhancing the overall texture and harmony of the handle.

[0012] Preferably, the support includes a first support and a second support arranged at opposite ends, connected to the rocker arm at the intersection by a connecting pin. The first support is bent with its upper and lower sides parallel to each other, and a hole is provided at the bend for the rocker arm to pass through. The magnet is fixed to the parallel surface of the bent support and can move synchronously with the rocker arm.

[0013] Furthermore, the FNR power reversing handle also includes a return spring, housed within the housing, with one end connected to the second bracket and the other end connected to the housing. During the return process of the operating handle, the auxiliary rocker arm quickly and accurately returns to the neutral position.

[0014] Furthermore, the power reversing handle also includes a bumper guard connected to the bottom of the housing and extending to the lower end of the handle, reducing the risk of misoperation and damage to the handle due to collisions.

[0015] Furthermore, when the magnetic sensing element is a reed switch, three sets of reed switches are connected in parallel on the PCB, corresponding to the F, N, and R positions on the slide rail, respectively. The four pins of the connector are a common terminal and three signal terminals. When the magnetic sensing element is a magnetoresistive or Hall element, the pins of the connector are a power terminal, a ground terminal, and a CAN signal terminal, respectively.

[0016] The present invention has at least the following beneficial effects:

[0017] Precise shifting and positioning: Through the cooperation of the spring pin structure and the slide rail, precise positioning is achieved under the action of the spring. When the handle moves, the magnetic induction element is triggered to output the corresponding gear electrical signal, which ensures the accuracy and reliability of the shifting operation, and enables the power reversing handle to switch precisely between F, N, and R gears, effectively improving the control performance of the equipment.

[0018] Both the handle head and joystick feature varying degrees of curvature, conforming to ergonomic principles for a more comfortable and convenient user experience. Anti-collision guards reduce the risk of misoperation and damage caused by impacts, enhancing safety and stability during use.

[0019] Excellent protection and durability: The protective shell seals the casing, and the multi-layered folding sleeve connects the handle head to the protective shell, effectively preventing water and dust damage, reducing the damage of external environmental factors to the internal components of the handle, extending the handle's service life, while maintaining a clean and beautiful appearance, and enhancing the overall texture and harmony of the handle. Attached Figure Description

[0020] Joystick-4, spring pin structure-21, slide rail-18, bottom shell-8, cover-9, first bracket-14, second bracket-20, PCB board-17, PCB sealing board-16, sensitivity assembly-6, anti-collision baffle-5, handle head-1, protective sleeve-2, protective shell-12, lower cover of protective shell-7, cable exit protective sleeve-11, connecting pin-15, return spring-19.

[0021] Figure 1 This is a schematic diagram of the overall structure of the power reversing handle;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of a power reversing handle;

[0023] Figure 3 This is an exploded view of the overall structure of an embodiment of a power reversing handle. Detailed Implementation

[0024] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The terms "first," "second," and similar terms used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are only used to distinguish the relationship between multiple identical elements and other different elements. The terms "installed," "connected," "linked," etc., in this invention should be interpreted broadly. The orientation or positional relationship indicated by "upper," "lower," "inner," "outer," etc., is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0025] Combination Figure 1-3The FNR power reversing handle includes a rocker arm 4, a bracket, a housing, a magnet, and a magnetic induction element. The housing includes a bottom shell 8 and a cover 9. A slide rail 18 and a bracket are fixed inside the housing. The slide rail 18 can also be an integral part of the bottom shell 8. The rocker arm 4 is rotatably fixed to the bracket via a connecting pin 15. One end of the rocker arm passes through a pre-drilled hole in the bracket and abuts against the slide rail 18. A spring-loaded pin structure is provided at the end of the rocker arm 4 that abuts against the slide rail 18. The spring-loaded pin structure includes a spring 213 and a pin 212 connected to the spring. The slide rail 18 has three positions: F, N, and R. A mis-detection limit is provided between the N and F / R positions. Limits are also provided on both sides of the N position. When the pin is in the neutral position, it will be locked in the N position, effectively preventing accidental shifting from neutral to forward or reverse due to accidental operation of the rocker arm. When shifting gears from the neutral (N) position, the rocker arm needs to be lifted upwards, causing the pin to slide down to the slide rail. The front and rear ends of the slide rail are the F and R positions, respectively. The spring-loaded pin structure works in conjunction with the F, N, and R positions on the slide rail to precisely position the rocker arm in these three gear positions.

[0026] The reversing handle also includes a handle head 1, which is connected to the rocker arm. The rocker arm is made of metal, and the handle head is made of polymer material. Furthermore, both the handle head and the rocker arm feature varying degrees of curvature, effectively improving comfort and controllability during use.

[0027] In one embodiment, the power reversing handle further includes a protective housing, comprising a protective housing 12 and a lower cover 7. A protective sleeve 11 is provided on the lower cover. The protective housing seals the housing, effectively preventing external dust and moisture from entering the housing, extending the handle's service life, and ensuring stable operation of the power reversing handle. A shock-absorbing baffle is also connected to the bottom of the protective housing, extending to the lower end of the handle to reduce the risk of misoperation and damage caused by collisions.

[0028] In one embodiment, the power reversing handle also includes a sensitivity adjustment assembly 6, mounted on the protective housing and connected to the PCB. Adjusting the sensitivity knob can change relevant parameters in the circuit, speeding up or slowing down signal processing and transmission, and consequently speeding up or slowing down the response speed.

[0029] In one embodiment, the power reversing handle also includes a multi-layer folding cover, with one end of the cover fixed to the handle head and the other end fixed to the protective shell. This effectively prevents water and dust, extends the service life of the handle, and makes it neater and more aesthetically pleasing, improving the overall texture and harmony of the handle.

[0030] In one embodiment, the bracket includes a first bracket 14 and a second bracket 20 arranged in a cross configuration. The intersection is vertically connected to the joystick via a connecting pin 15. The second bracket is fixed to the opposing sides of the housing to better support the joystick in performing corresponding actions. Preferably, the first bracket 1 is bent with its upper and lower sides parallel to each other, and the bend has a hole for the joystick to pass through, providing accurate positioning for the joystick installation. A magnet is fixed to the parallel surface of the bent bracket. When the joystick rotates, the second bracket rotates synchronously, and the magnet moves synchronously, triggering the magnetic induction element to switch states or output an electrical signal corresponding to the handle's action.

[0031] In one embodiment, the reversing handle further includes a return spring 19 disposed within the housing, with one end of the spring connected to the second bracket and the other end connected to the housing. During the return process of the operating handle, the auxiliary rocker arm quickly and accurately returns to the neutral position.

[0032] The magnetic sensing element is located on a PCB board, which is situated within a slot at the bottom of the housing and sealed by a sealing plate 16. The magnetic sensing element is one of the following: a reed switch, a magnetoresistive element, or a Hall effect sensor. A plug with four pins is located at the bottom of the housing for external electrical connection.

[0033] When the magnetic sensing element is a magnetoresistive or Hall element, the pins inside the plug correspond to the power supply terminal, ground terminal, and CAN signal terminal, respectively. As the handle moves back and forth from the center position, the magnet moves synchronously. The Hall element detects the change in magnetic field strength, converting the handle position signal into an electrical signal, which is input to the MCU module on the circuit board. After data analysis and processing, the data is output to the CAN module. Following the CAN protocol, the data is packaged and sent to the CAN bus, enabling data communication and functional control of the entire vehicle system. The sensitivity adjustment knob can change relevant parameters in the circuit, speeding up or slowing down signal processing and transmission, thus increasing or decreasing the response speed accordingly.

[0034] When the magnetic induction element is a reed switch, three sets of reed switches are connected in parallel on the PCB board. The pins inside the plug correspond to one common terminal and three signal terminals. The three signal terminals correspond to the three positions F, R, and N on the handle. When the handle is operated, the spring pin at the end of the joystick moves along the slide rail, and the magnet moves with the joystick, approaches the corresponding reed switch to close it, and generates an electrical signal for the corresponding position.

[0035] The power reversing handle provided by this invention is equipped with a clutchless power reversing system. It activates a neutral forward and reverse hydraulic valve via an electrical signal to deliver hydraulic pressure to a hydraulic wet multi-plate clutch, connecting the forward gear or the reverse gear. This enables power reversing without the need to depress the clutch, and allows for electric control that maintains the same speed through finger operation.

Claims

1. An FNR power directional control handle, comprising a rocker arm, a bracket, a housing, a magnet, and a magnetic induction element, characterized in that, The middle part of the rocker arm is movably fixed to the bracket, and one end of the rocker arm is connected to the handle head. The other end is provided with a spring pin structure located inside the housing. The spring pin structure abuts against the slide rail inside the housing. The slide rail has three positions: F, N, and R. An anti-misalignment limit is provided between the N and F and R positions. The bracket is fixed inside the housing, and a plug is provided at the bottom of the housing for electrical connection to the outside. When the handle is operated, the spring pin at the end of the joystick moves along the slide rail, and the magnet moves with the joystick, triggering the magnetic induction element to output an electrical signal corresponding to the gear position.

2. The FNR power reversing handle according to claim 1, characterized in that, The magnetic induction element is located on the PCB board, which is located in the slot at the bottom of the housing and is sealed by a sealing plate.

3. The FNR power reversing handle according to claim 1, characterized in that, The magnetic sensing element is one of the following: reed switch, magnetoresistive element, Hall element, etc.

4. The FNR power reversing handle according to claim 1, characterized in that, The spring-loaded structure includes a spring housed within the rocker arm, a pin connected to the spring, and the other end of the pin abutting against a slide rail inside the housing.

5. The FNR power reversing handle according to claim 1, characterized in that, The bracket includes a first bracket and a second bracket arranged in a cross configuration, with the intersection connected to a rocker arm via a connecting pin.

6. The FNR power reversing handle according to claim 5, characterized in that, The first bracket is bent in the shape of parallel upper and lower sides, and a hole is provided at the bend for the rocker arm to pass through.

7. The FNR power reversing handle according to claim 1 or 6, characterized in that, The magnet is fixed to the upper end of the bent support.

8. The FNR power reversing handle according to claim 1, characterized in that, The reversing handle also includes a protective shell and a multi-layer folding sleeve. The protective shell seals the housing, and the multi-layer folding sleeve connects the handle head and the protective shell.

9. The FNR power reversing handle according to claim 1, characterized in that, It also includes a bumper guard that is attached to the bottom of the protective housing and extends to the bottom of the handle.

10. The FNR power reversing handle according to claim 1, characterized in that, It also includes a sensitivity adjustment assembly, which is mounted on the protective housing and connected to the PCB.

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