Gear shift handle and engineering machine

Abstract

The utility model provides a kind of shift handle and engineering machinery, belong to shift handle technical field, comprising: handle skeleton, handle skeleton is provided with press trigger switch and at least one rotation trigger switch;Operating handle is rotatable and pressable and is set in handle skeleton, the inner peripheral wall of operating handle is provided with press trigger block and rotation encoding block;Press trigger block is aligned press trigger switch in the axial direction of operating handle;The circumferential movement track of rotation encoding block covers the area where rotation trigger switch contact point is located;The press movement of operating handle triggers press trigger switch by press trigger block, and the rotation movement of operating handle triggers rotation trigger switch by rotation encoding block.The beneficial effects of the utility model are that: the contact type trigger switch (press trigger switch and rotation trigger switch) of pure machinery is replaced traditional hall induction structure, and the reliability and anti-interference ability of shift handle in harsh environment are significantly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of gear shift levers, and relates to a gear shift lever and engineering machinery. Background Technology

[0002] Construction machinery (such as loaders, excavators, and bulldozers) plays a central role in modern engineering construction, and their operational efficiency and performance directly affect construction progress and safety. The gear shift lever, as a key operating component of the transmission system of construction machinery, undertakes core functions such as gear switching, power transmission control, and operating mode adjustment.

[0003] Early construction machinery mostly used mechanical or hydraulic shifting mechanisms, which relied on physical linkages, cables, or hydraulic valve groups to transmit power. These mechanical shifting mechanisms have many problems and are gradually being replaced by electronic shift levers. For example, a utility model patent with application number CN202110837688.9, entitled "Shift Lever, Shift Lever Gear Position Calibration Method, and Working Machinery," describes a shift lever comprising a shift rod and a main shaft. The shift rod has a magnetic component, and the main shaft is equipped with a Hall element. The Hall element can detect the magnetic field generated by the magnetic component, thereby identifying the gear position of the shift rod through the Hall effect sensing principle.

[0004] Since engineering equipment typically operates in complex environments with high vibration, dust, and large temperature variations, and is surrounded by numerous motors and electromagnetic devices, it is prone to electromagnetic interference (i.e., being in a complex electromagnetic environment), which can easily affect the normal operation of Hall sensors. Therefore, the reliability of this type of engineering machinery shift lever designed based on the Hall sensing principle is insufficient, and thus there is room for improvement. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a gear shift lever and engineering machinery.

[0006] The objective of this utility model can be achieved through the following technical solution: a gear shift lever, comprising:

[0007] A handle frame, wherein the handle frame is provided with a press-triggered switch and at least one rotation-triggered switch;

[0008] The operating handle is a hollow tubular structure. The operating handle is rotatable and pressable and is fitted onto the handle frame. The inner peripheral wall of the operating handle is provided with a press trigger block and a rotation encoder block.

[0009] The press trigger block is axially locked to the operating handle, and the press trigger block is aligned with the press trigger switch in the axial direction of the operating handle; the rotary encoder block is circumferentially locked to the operating handle, and the circumferential movement trajectory of the rotary encoder block covers the area where the rotary trigger switch contact is located;

[0010] The downward movement of the operating handle triggers the press-trigger switch via the press-trigger block, and the rotational movement of the operating handle triggers the rotation-trigger switch via the rotation-encoding block.

[0011] Preferably, the rotating encoder block is an arc-shaped sheet structure, with the concave surface of the rotating encoder block facing the handle frame. The concave surface of the rotating encoder block is provided with at least one contour portion, which includes a clearance area and a protruding area distributed circumferentially along the operating handle.

[0012] The circumferential position of the operating handle determines whether the contour portion is in a neutral position or a triggered position relative to the rotary trigger switch; wherein, when the contour portion is in a neutral position, the neutral area covers the area where the rotary trigger switch contacts are located so that the rotary trigger switch is not triggered; when the contour portion is in a triggered position, the protruding area covers the area where the rotary trigger switch contacts are located so that the rotary trigger switch is triggered.

[0013] Preferably, the number of contour portions and the number of rotary trigger switches are both at least two. Each contour portion and each rotary trigger switch are arranged sequentially along the axial direction of the operating handle. Each contour portion and each rotary trigger switch are configured in a one-to-one correspondence. The protruding areas of each contour portion are staggered in the circumferential direction of the operating handle.

[0014] Preferably, the number of the contour portions is two, namely a first contour portion and a second contour portion, and the number of the rotary trigger switches is two, namely a first rotary trigger switch and a second rotary trigger switch, the first contour portion and the second contour portion respectively correspond to the first rotary trigger switch and the second rotary trigger switch, and the operating handle includes a first gear, a second gear, a third gear and a fourth gear that can be reached by rotating it circumferentially;

[0015] When the operating handle is in the first gear position, the first contour part is in a clearance position relative to the first rotary trigger switch and does not trigger the first rotary trigger switch, and the second contour part is in a clearance position relative to the second rotary trigger switch and does not trigger the second rotary trigger switch.

[0016] When the operating handle is in the second position, the first contour part is in the trigger position relative to the first rotary trigger switch and triggers the first rotary trigger switch, while the second contour part is in the clear position relative to the second rotary trigger switch and does not trigger the second rotary trigger switch.

[0017] When the operating handle is in the third position, the first contour part is in the trigger position relative to the first rotary trigger switch and triggers the first rotary trigger switch, and the second contour part is in the trigger position relative to the second rotary trigger switch and triggers the second rotary trigger switch;

[0018] When the operating handle is in the fourth position, the first contour part is in a non-empty position relative to the first rotary trigger switch and does not trigger the first rotary trigger switch, while the second contour part is in a trigger position relative to the second rotary trigger switch and triggers the second rotary trigger switch.

[0019] Preferably, the press-triggered switch is disposed at the end of the handle frame, the contact triggering action of the press-triggered switch is configured to move radially along the operating handle, the contact of the press-triggered switch has a first inclined surface, the press-triggered block is provided with a second inclined surface, and the first inclined surface cooperates with the second inclined surface.

[0020] Preferably, a reset member is provided between the end of the handle frame and the operating handle, and the reset member applies a spring force to the operating handle.

[0021] Preferably, the handle frame is integrally provided with a bullet head extending along the axial direction of the operating handle, a stop ring is fixed in the inner circumference of the operating handle, an elastic element is provided between the stop ring and the end of the operating handle, the stop ring is allowed to float along the axial direction of the operating handle through the elastic element, a plurality of stop grooves are provided on the end face of the stop ring, and the bullet head abuts against the end face.

[0022] Preferably, the device also includes a base and a joystick assembly, the joystick assembly being pivotally connected to the base, the handle frame being fixedly connected to the joystick assembly, and a toggle trigger switch being provided on the base, the contacts of which are located on the movement path of the joystick assembly.

[0023] Preferably, the handle frame is provided with a first circuit board, and the press trigger switch and each of the rotation trigger switches are electrically connected to the first circuit board; the base is provided with a second circuit board, and the toggle trigger switch is electrically connected to the second circuit board.

[0024] An engineering machine, including the gear shift lever.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] 1. The traditional Hall effect sensor structure has been replaced with a purely mechanical contact-type trigger switch (press trigger switch and rotary trigger switch), which significantly improves the reliability and anti-interference ability of the gear shift lever in harsh environments.

[0027] 2. Press-triggered switches and rotary-triggered switches output simple switching signals (high / low level), which do not require analog-to-digital conversion and signal conditioning like Hall effect sensors. The control system receives and processes these signals more directly. If a fault occurs, maintenance personnel can quickly determine whether the switch itself is damaged or there is a problem with the wiring by measuring the continuity of the switch with a multimeter, making troubleshooting simple.

[0028] 3. When the operating handle is rotated to a certain angle, the position of the contoured part relative to the corresponding rotary trigger switch changes; if the clearance area covers the switch contact, the switch is not triggered; if the raised area presses down the contact, the switch is closed; the on / off state of the rotary trigger switch can be controlled by the rotation angle. Conversely, the rotation angle of the operating handle can be deduced from the on / off state (triggered / not triggered) of the rotary trigger switch, and the corresponding gear signal can be output.

[0029] 4. The four-position encoding logic can uniquely identify each position, avoiding misoperation, and only two rotary trigger switches are needed to identify four positions. To identify more positions, simply increase the number of contour sections and rotary trigger switches; each additional set of contour sections and rotary trigger switches results in a greater number of identifiable positions. Theoretically, using N contour sections and N switches can achieve a maximum of 2... n A state.

[0030] 5. Pressing the trigger block moves accordingly. Because the second inclined surface and the first inclined surface form an inclined surface mating structure, the axial displacement of the operating handle is converted into a radial thrust on the downward trigger switch contact. This design utilizes the inclined surface structure to efficiently convert the limited axial pressing stroke into sufficient radial trigger displacement to meet the switching action requirements, making the overall structure more compact. Attached Figure Description

[0031] Figure 1 This is a schematic diagram showing the connection relationship between the handle frame, the rotating encoder block, and the gear ring of this utility model.

[0032] Figure 2 This is a schematic diagram of the internal structure of the operating handle of this utility model.

[0033] Figure 3 This is an exploded view of the operating handle, rotating encoder block, and handle frame of this utility model.

[0034] Figure 4 This is an exploded view of the rotating coding block of this utility model.

[0035] Figure 5 This is a schematic diagram showing the connection relationship between the operating handle, the rotary encoder block, and the rotary trigger switch of this utility model.

[0036] Figure 6 This is a schematic diagram of the handle frame of this utility model.

[0037] Figure 7 This is an exploded view of the handle frame, press-to-trigger switch, and rotary-to-trigger switch of this utility model.

[0038] Figure 8 This is an isometric view of the gear shift lever of this utility model.

[0039] Figure 9 This is a half-sectional view of the gear shift lever of this utility model.

[0040] Figure 10 This is a schematic diagram showing the positions of the joystick assembly and the toggle trigger switch of this utility model.

[0041] In the figure, 100 is the handle frame; 110 is the press trigger switch; 111 is the first inclined surface; 120 is the rotary trigger switch; 130 is the reset component; 140 is the bullet head; 200 is the operating handle; 300 is the press trigger block; 310 is the second inclined surface; 400 is the rotary encoder block; 410 is the outline; 411 is the clearance area; 412 is the protruding area; 500 is the gear ring; 510 is the elastic component; 520 is the gear groove; 600 is the base; 610 is the toggle trigger switch; and 700 is the joystick assembly. Detailed Implementation

[0042] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0043] like Figures 1 to 7 As shown, a gear shift lever includes:

[0044] The handle frame 100 is provided with a press trigger switch 110 and at least one rotation trigger switch 120.

[0045] The operating handle 200 is a hollow tubular structure. The operating handle 200 is rotatable and pressable and is sleeved on the handle frame 100. The inner peripheral wall of the operating handle 200 is provided with a press trigger block 300 and a rotary encoder block 400.

[0046] The press trigger block 300 is axially locked to the operating handle 200, and the press trigger block 300 is aligned with the press trigger switch 110 in the axial direction of the operating handle 200; the rotary encoder block 400 is circumferentially locked to the operating handle 200, and the circumferential movement trajectory of the rotary encoder block 400 covers the area where the contacts of the rotary trigger switch 120 are located.

[0047] The downward movement of the operating handle 200 triggers the press trigger switch 110 through the press trigger block 300, and the rotational movement of the operating handle 200 triggers the rotation trigger switch 120 through the rotation encoder block 400.

[0048] The operating handle 200 can be pressed axially and can also rotate around its own axis. A press trigger block 300 is integrally connected to the operating handle 200 to lock them axially, ensuring that the press trigger block 300 is pressed down synchronously with the operating handle 200. A rotary encoder block 400 is locked circumferentially with the operating handle 200, ensuring that the rotary encoder block 400 rotates synchronously with the operating handle 200. When the user presses down on the operating handle 200, the press trigger block 300 pushes the press trigger switch 110, triggering it to input commands such as confirmation or mode switching. When the user rotates the operating handle 200, the rotary encoder block 400 sweeps across the contact area of ​​the rotary trigger switch 120, determining whether to trigger the switch based on its contour shape, thereby achieving a multi-position selection function.

[0049] Specifically, both the push-button trigger switch 110 and the rotary trigger switch 120 are mechanical trigger switches (microswitches, electrical switches, or similar physical contact switches). These switches generate signals by switching metal contacts on and off. This structure is insensitive to electromagnetic fields and is virtually unaffected by complex electromagnetic environments. This ensures reliable operation of the shift lever even in engineering equipment filled with strong electromagnetic interference sources such as motors and frequency converters. Furthermore, the output characteristics of Hall effect sensors drift with temperature changes, requiring complex temperature compensation circuits, while mechanical switches maintain very stable switching functions within a certain temperature range, showing minimal temperature influence.

[0050] Furthermore, the press-triggered switch 110 and the rotary-triggered switch 120 output simple switching signals (high level / low level), which do not require analog-to-digital conversion and signal conditioning like Hall sensors. The control system receives and processes these signals more directly. If a fault occurs, maintenance personnel can quickly determine whether the fault is due to a faulty switch or a wiring problem by measuring the continuity of the switch with a multimeter, making troubleshooting simple.

[0051] In summary, the shift lever uses purely mechanical contact-type trigger switches (press trigger switch 110 and rotary trigger switch 120) to replace the traditional Hall effect sensing structure, which significantly improves the reliability and anti-interference capability of the shift lever in harsh environments.

[0052] Based on the above embodiments, the rotating encoder block 400 has an arc-shaped sheet structure. The concave surface of the rotating encoder block 400 faces the handle frame 100. The concave surface of the rotating encoder block 400 is provided with at least one contour portion 410. The contour portion 410 includes a clearance area 411 and a protruding area 412 distributed circumferentially along the operating handle 200.

[0053] The circumferential position of the operating handle 200 determines whether the contour portion 410 is in a neutral position or a triggered position relative to the rotary trigger switch 120; wherein, when the contour portion 410 is in a neutral position, the neutral area 411 covers the area where the rotary trigger switch 120 contacts are located so that the rotary trigger switch 120 is not triggered; when the contour portion 410 is in a triggered position, the protruding area 412 covers the area where the rotary trigger switch 120 contacts are located so that the rotary trigger switch 120 is triggered.

[0054] In simple terms, when the operating handle 200 is rotated to a certain angle, the position of the contour portion 410 relative to the corresponding rotary trigger switch 120 changes; if the clearance area 411 covers the switch contact, the switch is not triggered; if the protruding area 412 presses down the contact, the switch is closed; the on / off state of the rotary trigger switch 120 can be controlled by the rotation angle. Conversely, the rotation angle of the operating handle 200 can be deduced from the on / off state (triggered / not triggered) of the rotary trigger switch 120, and a corresponding gear signal can be output.

[0055] like Figures 1 to 7 As shown, based on the above embodiment, the number of contour portions 410 and the number of rotary trigger switches 120 are both at least two. Each contour portion 410 and each rotary trigger switch 120 are arranged sequentially along the axial direction of the operating handle 200. Each contour portion 410 and each rotary trigger switch 120 are provided in a one-to-one correspondence. The protruding areas 412 of each contour portion 410 are offset in the circumferential direction of the operating handle 200.

[0056] In this embodiment, the physical shapes (protrusions / avoidances) of multiple contour portions 410 on the rotary encoder block 400 are combined with multiple rotary trigger switches 120 to form a unique gear code. Although all contour portions 410 rotate synchronously with the operating handle 200, the starting angles of their respective protrusion areas 412 in the circumferential direction are different. The circumferential position of the protrusion areas 412 of each contour portion 410 is designed according to the gear logic requirements. Therefore, when the operating handle 200 rotates to a certain angle, the trigger or avoidance states of each contour portion 410 combine together to form a unique gear code. The controller only needs to read the corresponding gear code to accurately determine the current gear without measuring absolute angles or relying on analog signals.

[0057] In one embodiment, there are two contour portions 410, which are respectively a first contour portion and a second contour portion, and there are two rotary trigger switches 120, which are respectively a first rotary trigger switch and a second rotary trigger switch. The first contour portion and the second contour portion correspond to the first rotary trigger switch and the second rotary trigger switch, respectively. The operating handle 200 includes a first gear, a second gear, a third gear and a fourth gear that can be reached by rotating it around its circumference.

[0058] When the operating handle 200 is in the first position, the first contour part is in a clearance position relative to the first rotary trigger switch and does not trigger the first rotary trigger switch, and the second contour part is in a clearance position relative to the second rotary trigger switch and does not trigger the second rotary trigger switch;

[0059] When the operating handle 200 is in the second position, the first contour part is in the trigger position relative to the first rotary trigger switch and triggers the first rotary trigger switch, while the second contour part is in the clearance position relative to the second rotary trigger switch and does not trigger the second rotary trigger switch.

[0060] When the operating handle 200 is in the third position, the first contour part is in the trigger position relative to the first rotary trigger switch and triggers the first rotary trigger switch, and the second contour part is in the trigger position relative to the second rotary trigger switch and triggers the second rotary trigger switch.

[0061] When the operating handle 200 is in the fourth position, the first contour part is in a neutral position relative to the first rotary trigger switch and does not trigger the first rotary trigger switch, while the second contour part is in a trigger position relative to the second rotary trigger switch and triggers the second rotary trigger switch.

[0062] The four gear positions correspond to four distinct binary combinations. The controller uniquely determines the current gear position by reading the states of the two rotary trigger switches 120. The states of the rotary trigger switches 120 for each gear position are as follows:

[0063] First position: Neither of the two rotary trigger switches 120 was triggered;

[0064] Second position: Only the first rotary trigger switch 120 is triggered;

[0065] Third position: Both rotary trigger switches 120 are triggered;

[0066] Fourth position: Only the second rotary trigger switch 120 is triggered.

[0067] The above four-position encoding logic can uniquely identify each position, avoiding misoperation, and only two rotary trigger switches 120 are needed to identify the four positions. To identify more positions, simply increase the number of contour sections 410 and rotary trigger switches 120, and each additional set of contour sections 410 and rotary trigger switches 120 generates more identifiable positions. If N contour sections 410 and N switches are used, theoretically up to 2n states can be achieved.

[0068] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, based on the above embodiment, the press trigger switch 110 is disposed at the end of the handle frame 100. The contact triggering action of the press trigger switch 110 is set to move radially along the operating handle 200. The contact of the press trigger switch 110 has a first inclined surface 111, and the press trigger block 300 is provided with a second inclined surface 310. The first inclined surface 111 and the second inclined surface 310 cooperate with each other.

[0069] When the user presses the operating handle 200, the trigger block 300 moves accordingly. Since the second inclined surface 310 and the first inclined surface 111 form an inclined surface mating structure, the axial displacement of the operating handle 200 is converted into a radial thrust on the downward trigger switch contact. This design utilizes the inclined surface structure to efficiently convert the limited axial pressing stroke into sufficient radial trigger displacement to meet the switching action requirements, making the overall structure more compact.

[0070] Based on the above embodiments, a reset member 130 is provided between the end of the handle frame 100 and the operating handle 200, and the reset member 130 applies elastic force to the operating handle 200.

[0071] The reset element 130 (such as a compression spring or elastic rubber pad) always applies a spring force to the operating handle 200. When the user presses and releases the operating handle 200, the reset element 130 uses its own elasticity to push the operating handle 200 back to its initial position, thereby achieving automatic reset of the operating handle 200.

[0072] Based on the above embodiments, the handle frame 100 is integrally provided with a bullet head 140 extending along the axial direction of the operating handle 200. A stop ring 500 is fixed in the inner circumference of the operating handle 200. An elastic element 510 is provided between the stop ring 500 and the end of the operating handle 200. The stop ring 500 is allowed to float along the axial direction of the operating handle 200 through the elastic element 510. A plurality of stop grooves 520 are provided on the end face of the stop ring 500. The bullet head 140 is in contact with the end face.

[0073] When the user rotates the operating handle 200, the gear ring 500 rotates relative to the bullet head 140, and the bullet head 140 slides sequentially over the crests (protrusions) and troughs (grooves) of the gear groove 520. Each time the bullet head 140 rolls from one trough to the next, a distinct "click" or segmented feeling is produced, thus providing the user with clear and stable tactile feedback for shifting gears and helping to accurately perceive the current gear position.

[0074] like Figures 1 to 10 As shown, based on the above embodiment, it also includes a base 600 and a joystick assembly 700. The joystick assembly 700 is swayably connected to the base 600. The handle frame 100 is fixedly connected to the joystick assembly 700. A toggle trigger switch 610 is provided on the base 600. The contacts of the toggle trigger switch 610 are located on the movement path of the joystick assembly 700.

[0075] The gear shift lever is mounted on the joystick assembly 700, which can swing back and forth or left and right relative to the base 600. When the user moves the entire lever (e.g., pushes forward or pulls back), the joystick assembly 700 swings accordingly and pushes the contacts of the toggle switch 610, thereby triggering the corresponding auxiliary control signal (e.g., direction selection), realizing a third type of operation input in addition to rotation and pressing.

[0076] Based on the above embodiments, the handle frame 100 is provided with a first circuit board, and the press trigger switch 110 and each rotation trigger switch 120 are electrically connected to the first circuit board; the base 600 is provided with a second circuit board, and the toggle trigger switch 610 is electrically connected to the second circuit board.

[0077] like Figures 1 to 10 As shown, the operating handle 200 can perform rotation, axial pressing, and back-and-forth swinging movements. Its specific operating mechanism is as follows:

[0078] When the user rotates the operating handle 200 (e.g., to switch between multiple gears), the contour portion 410 sweeps across the contact area of ​​the rotary trigger switch 120. If the current angle of the rotary encoder block 400 causes the protruding area 412 to press against the contact of the rotary trigger switch 120, then the rotary trigger switch 120 is triggered. If the current angle of the rotary encoder block 400 causes the clearance area 411 to align with the contact of the rotary trigger switch 120, then the rotary trigger switch 120 is not triggered. During multi-gear switching, the mechanical coding logic is formed by the states of multiple rotary trigger switches 120, and the control system only needs to read the high and low levels of each switch to determine the current gear.

[0079] When the user presses the operating handle 200 (e.g., for parking or confirmation), the entire operating handle 200 moves axially, and the trigger block 300 moves accordingly. Its second inclined surface 310 contacts the first inclined surface 111 of the switch contact. The second inclined surface 310 slides along the first inclined surface 111, converting the axial force into a radial thrust. The radial thrust pushes the contact of the trigger switch, thereby triggering the trigger switch. After the pressing force is removed, the spring force of the reset member 130 pushes the operating handle 200 back, and the trigger switch contact resets under its own spring force.

[0080] When the user moves the operating handle 200 (handle frame 100) back and forth (e.g., for direction selection), the joystick assembly 700 swings around the hinge point on the base 600. A specific part of the joystick assembly 700 (e.g., the bottom boss) pushes the contact of the trigger switch 610 to output a corresponding signal.

[0081] like Figures 1 to 10 As shown, an engineering machinery includes a gear shift lever. The gear shift lever adopts a purely mechanical contact trigger switch (press trigger switch 110 and rotary trigger switch 120), abandoning the easily interfered Hall effect sensing principle and adopting a direct and reliable physical contact switch scheme. This greatly improves the reliability and stability of the gear shift lever in the high-intensity vibration, dusty, drastic temperature fluctuation and complex electromagnetic environment commonly encountered in engineering machinery, thus meeting the stringent requirements of engineering machinery for high robustness of key control components.

[0082] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0083] Furthermore, in this utility model, descriptions involving "first," "second," or "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0084] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components, unless otherwise explicitly limited.

[0085] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A gear shift lever, characterized in that, include: A handle frame (100) is provided with a press trigger switch (110) and at least one rotation trigger switch (120); An operating handle (200) is a hollow tubular structure. The operating handle (200) is rotatable and pressable and is sleeved on the handle frame (100). The inner peripheral wall of the operating handle (200) is provided with a press trigger block (300) and a rotation encoder block (400). The press trigger block (300) is axially locked to the operating handle (200), and the press trigger block (300) is aligned with the press trigger switch (110) axially with the operating handle (200); the rotary encoder block (400) is circumferentially locked to the operating handle (200), and the circumferential movement trajectory of the rotary encoder block (400) covers the area where the contact of the rotary trigger switch (120) is located; The downward movement of the operating handle (200) triggers the press trigger switch (110) through the press trigger block (300), and the rotational movement of the operating handle (200) triggers the rotation trigger switch (120) through the rotation encoder block (400).

2. A gear shift lever as described in claim 1, characterized in that: The rotating encoder block (400) has an arc-shaped sheet structure. The concave surface of the rotating encoder block (400) faces the handle frame (100). The concave surface of the rotating encoder block (400) is provided with at least one contour portion (410). The contour portion (410) includes a clearance area (411) and a protruding area (412) distributed circumferentially along the operating handle (200). The circumferential position of the operating handle (200) determines whether the contour portion (410) is in a neutral position or a triggered position relative to the rotary trigger switch (120); wherein, when the contour portion (410) is in a neutral position, the neutral area (411) covers the area where the rotary trigger switch (120) contacts are located so that the rotary trigger switch (120) is not triggered; when the contour portion (410) is in a triggered position, the protruding area (412) covers the area where the rotary trigger switch (120) contacts are located so that the rotary trigger switch (120) is triggered.

3. A gear shift lever as described in claim 2, characterized in that: The number of contour portions (410) and the number of rotary trigger switches (120) are both at least two. Each contour portion (410) and each rotary trigger switch (120) are arranged sequentially along the axial direction of the operating handle (200). Each contour portion (410) and each rotary trigger switch (120) are provided in a one-to-one correspondence. The protruding areas (412) of each contour portion (410) are offset in the circumferential direction of the operating handle (200).

4. A gear shift lever as described in claim 2, characterized in that: The number of contour portions (410) is two, namely the first contour portion and the second contour portion, and the number of rotary trigger switches (120) is two, namely the first rotary trigger switch and the second rotary trigger switch. The first contour portion and the second contour portion correspond to the first rotary trigger switch and the second rotary trigger switch, respectively. The operating handle (200) includes a first gear, a second gear, a third gear and a fourth gear that can be reached by rotating it around its circumference. When the operating handle (200) is in the first gear position, the first contour part is in a clearance position relative to the first rotary trigger switch and does not trigger the first rotary trigger switch, and the second contour part is in a clearance position relative to the second rotary trigger switch and does not trigger the second rotary trigger switch; When the operating handle (200) is in the second position, the first contour part is in the trigger position relative to the first rotary trigger switch and triggers the first rotary trigger switch, while the second contour part is in the clear position relative to the second rotary trigger switch and does not trigger the second rotary trigger switch; When the operating handle (200) is in the third position, the first contour part is in the trigger position relative to the first rotary trigger switch and triggers the first rotary trigger switch, and the second contour part is in the trigger position relative to the second rotary trigger switch and triggers the second rotary trigger switch; When the operating handle (200) is in the fourth position, the first contour part is in a non-empty position relative to the first rotary trigger switch and does not trigger the first rotary trigger switch, while the second contour part is in a trigger position relative to the second rotary trigger switch and triggers the second rotary trigger switch.

5. A gear shift lever as described in claim 1, characterized in that: The press-triggered switch (110) is disposed at the end of the handle frame (100). The contact triggering action of the press-triggered switch (110) is configured to move radially along the operating handle (200). The contact of the press-triggered switch (110) has a first inclined surface (111), and the press-triggered block (300) is provided with a second inclined surface (310). The first inclined surface (111) cooperates with the second inclined surface (310).

6. A gear shift lever as described in claim 1, characterized in that: A reset member (130) is provided between the end of the handle frame (100) and the operating handle (200), and the reset member (130) applies a spring force to the operating handle (200).

7. A gear shift lever as described in claim 1, characterized in that: The handle frame (100) is integrally provided with a bullet head (140) extending along the axial direction of the operating handle (200). A stop ring (500) is fixed in the inner circumference of the operating handle (200). An elastic element (510) is provided between the stop ring (500) and the end of the operating handle (200). The stop ring (500) is allowed to float along the axial direction of the operating handle (200) through the elastic element (510). A plurality of stop grooves (520) are provided on the end face of the stop ring (500). The bullet head (140) is in contact with the end face.

8. A gear shift lever as described in claim 1, characterized in that: It also includes a base (600) and a joystick assembly (700), the joystick assembly (700) being oscillatingly connected to the base (600), the handle frame (100) being fixedly connected to the joystick assembly (700), and a toggle trigger switch (610) being provided on the base (600), the contacts of the toggle trigger switch (610) being located on the movement path of the joystick assembly (700).

9. A gear shift lever as described in claim 8, characterized in that: The handle frame (100) is provided with a first circuit board, and the press trigger switch (110) and each of the rotation trigger switches (120) are electrically connected to the first circuit board; the base (600) is provided with a second circuit board, and the toggle trigger switch (610) is electrically connected to the second circuit board.

10. An engineering machinery, characterized in that, Includes the shift lever as described in any one of claims 1 to 9.

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