CN218539192U

CN218539192U - Control lever and engineering machinery

Info

Publication number: CN218539192U
Application number: CN202223020367.9U
Authority: CN
Inventors: 曹保卫; 刘勇; 庄钦河
Original assignee: Sany Robot Technology Co Ltd
Current assignee: Sany Robot Technology Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-02-28
Anticipated expiration: 2032-11-14

Abstract

The utility model relates to an engineering machine tool technical field, concretely relates to control rod and engineering machine tool. The joystick includes: the multi-way valve locking mechanism comprises a first connecting rod, a second connecting rod and a locking mechanism, wherein one end of the first connecting rod is suitable for being connected with the multi-way valve; the second connecting rod is bent, one end of the second connecting rod is a connecting end, the other end of the second connecting rod is an operating end, and the connecting end is in a connection state of moving together with the first connecting rod and in a separation state of rotating relative to the first connecting rod; the locking mechanism has a locking state for locking the connecting end in the connecting state and an unlocking state for keeping the connecting end in the disconnecting state, and is suitable for being in the unlocking state under the action of external force. The relative position between second connecting rod and the first connecting rod is changed to the second connecting rod of being convenient for rotate when the link is in the state of breaking away from to realize adjusting the horizontal interval between the second connecting rod of two adjacent control levers, satisfy different users' driving experience, this simple structure and shared space are little, can also borrow ripe mould to process low cost.

Description

Control lever and engineering machinery

Technical Field

The utility model relates to an engineering machine tool technical field, concretely relates to control rod and engineering machine tool.

Background

Along with the development of the forklift industry, the requirements of users on the driving comfort and the working efficiency of the forklift are higher and higher. Common fork truck in the existing market is the mechanical valve motorcycle type, and fork truck has the multiple unit valve, correspondingly, the mark multiple unit valve control rod.

In the prior art, the operating levers are mostly welded into a whole by adopting bent bars, the installed operating levers can only be operated forwards and backwards and cannot be adjusted left and right, the left and right distances among the operating levers are relatively fixed, and the distance between the operating levers cannot be adjusted. However, the size of the hand of different operators is different, and the hand is easy to clamp when the gap between the operating levers is small, which brings inconvenience to the operation.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the control rod among the prior art can not the spacing to a control rod and engineering machine tool that can the spacing are provided.

In order to solve the above problem, the present invention provides an operating rod, including: one end of the first connecting rod is suitable for being connected with the multi-way valve; the second connecting rod is bent, one end of the second connecting rod is a connecting end, the other end of the second connecting rod is an operating end, and the connecting end is in a connection state of moving together with the first connecting rod and in a separation state of rotating relative to the first connecting rod; the locking mechanism is provided with a locking state for locking the connecting end in a connecting state and an unlocking state for enabling the connecting end to be in a disconnecting state, and the locking mechanism is suitable for being in the unlocking state under the action of external force.

Optionally, one of the other end of the first connecting rod and the connecting end is provided with an internal spline, and the other end of the first connecting rod and the connecting end is provided with an external spline; when the connecting end is in a separation state, the internal spline is separated from the external spline.

Optionally, the other end of the first connecting rod is circumferentially configured with an external spline; the connecting end is provided with a first hole section which is opened downwards, and the inner wall of the first hole section is provided with an internal spline along the circumferential direction.

Optionally, the locking mechanism includes a connecting member and an elastic member, one end of the connecting member passes through the connecting end and is fixed to the other end of the first connecting rod, one end of the elastic member is matched with the other end of the connecting member, the other end of the elastic member is matched with the connecting end, and the elastic member applies an acting force towards the first connecting rod to the connecting end.

Optionally, the connecting end has a second hole section and an upward second abutting surface, the connecting piece includes a connecting rod and an abutting portion, one end of the connecting piece passes through the second hole section and then is fixed at the other end of the first connecting rod, the diameter of the abutting portion is larger than that of the connecting rod, the elastic piece is sleeved on the connecting rod and located between the abutting portion and the second abutting surface, and the elastic piece is in a compressed state so as to apply an acting force towards the first connecting rod to the second abutting surface.

Optionally, the connecting end further has a third hole section located above the second hole section, the diameter of the third hole section is larger than that of the second hole section, and a second abutting surface is formed at the lower end of the third hole section.

Optionally, the lower end of the connecting rod is provided with an external thread, the upper end of the first connecting rod is provided with a threaded hole, and the external thread is matched with the threaded hole.

Optionally, the resilient member is a spring.

Optionally, the connecting end is configured to be flat and disposed at an angle to the main body portion of the second connecting rod, the connecting end has a first connecting point and a second connecting point disposed at an interval, the first connecting point is connected with the first connecting rod, and the second connecting point is fixedly connected with the rod portion of the second connecting rod.

The utility model also provides an engineering machine tool, it includes: the joystick described above.

The utility model has the advantages of it is following:

1. the connecting end through setting up the second connecting rod has the connected state of common motion with first connecting rod and for first connecting rod pivoted state of breaking away from, and switch between the locked state and the state of breaking away from through locking mechanical system and make the connecting end switch between connected state and state of breaking away from, be convenient for adjust the position relation between second connecting rod and the first connecting rod, so that rotate the second connecting rod when the connecting end is in the state of breaking away from and change the relative position between second connecting rod and the first connecting rod, thereby realize adjusting the horizontal interval between the second connecting rod of two adjacent control levers, satisfy different users' driving experience, this simple structure and shared space are little, can also borrow ripe mould to process, therefore, the carrier wave prepaid electric energy meter is low in cost.

2. Through the cooperation of internal spline and external spline, realize the relative fixed connection of link and first connecting rod, simultaneously, the axis direction relative movement of spline can be followed with the external spline to the internal spline can deviate from with the external spline, at this moment, the link breaks away from with first connecting rod, the link can be to first connecting rod rotation, thereby be convenient for realize the link and switch between connection status and disengagement status, and internal spline is connected reliably when cooperating with the external spline, the transmission power is good.

3. When the locking mechanism is in a locking state, acting force towards the first connecting rod is applied to the connecting end through the elastic piece, the connecting end is pressed towards the first connecting rod, the limiting of the connecting end and the first connecting rod along the axial direction is realized, and therefore the connecting end is locked in the connecting state; and when locking mechanism was in the unblock state, the elastic component was further compressed, in case remove the external force that applys locking mechanism, then the elastic force of elastic component forces about the link and moves towards first link to realize automatically switching the link to connected state, internal spline and external splines automatic meshing, easy operation and degree of automation height.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 illustrates an exploded view of a joystick in accordance with an embodiment of the present invention;

FIG. 2 shows a schematic partial cross-sectional view of the joystick of FIG. 1;

FIG. 3 shows an enlarged schematic view of portion A of FIG. 2;

fig. 4 shows a partial schematic view of a connector and a second link of an embodiment of the present invention;

FIG. 5 shows a schematic structural view from another perspective of the link and second link of FIG. 4;

FIG. 6 shows a cross-sectional schematic view of the connector and second link of FIG. 4;

fig. 7 is a schematic structural diagram of a first link of the joystick according to the embodiment of the present invention;

FIG. 8 is a schematic diagram of a configuration in which a plurality of joysticks are mounted side by side in an embodiment of the present invention;

fig. 9 shows a schematic structural diagram of a forklift truck according to an embodiment of the present invention.

Description of reference numerals:

10. a first link; 20. a second link; 30. a connecting end; 31. a first connection point; 32. a second connection point; 331. a first bore section; 332. a second bore section; 333. a third bore section; 341. a first abutting surface; 342. a second abutting surface; 40. a locking mechanism; 41. a connecting rod; 42. an abutting portion; 43. an elastic member; 50. a handle; 61. a rotating shaft; 62. a fixed part; 63. a transmission rod; 71. a hood boss; 72. a combination switch; 100. a joystick.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 9, the joystick of the present embodiment includes: the multi-way valve comprises a first connecting rod 10, a second connecting rod 20 and a locking mechanism 40, wherein one end of the first connecting rod 10 is suitable for being connected with the multi-way valve; the second connecting rod 20 is bent, one end of the second connecting rod is a connecting end 30, the other end of the second connecting rod is an operating end, and the connecting end 30 has a connection state moving together with the first connecting rod 10 and a separation state rotating relative to the first connecting rod 10; the locking mechanism 40 has a locked state in which the connection end 30 is locked in the connected state and an unlocked state in which the connection end 30 is in the disconnected state, and the locking mechanism 40 is adapted to be in the unlocked state by an external force.

By applying the joystick of the embodiment, the connecting end 30 of the second link 20 is set to have a connection state moving together with the first link 10 and a disengagement state rotating relative to the first link 10, and the connecting end 30 is switched between the connection state and the disengagement state by switching the locking mechanism 40 between the locking state and the unlocking state, so that the positional relationship between the second link 20 and the first link 10 is adjusted, and the relative position between the second link 20 and the first link 10 is changed by rotating the second link 20 when the connecting end 30 is in the disengagement state, thereby realizing adjustment of the transverse distance between the second links 20 of two adjacent joysticks, and meeting the driving experience of different users.

It should be noted that, the joint movement of the connection end 30 and the first connection rod 10 means that there is no relative movement between the connection end 30 and the first connection rod 10, and there is no relative movement between the second connection rod 20 and the first connection rod 10, and the connection end 30 moves together with the first connection rod 10 and drives the second connection rod 20 and the first connection rod 10 to move together, that is, the operation lever is in a state of operating the multi-way valve; the multi-way valve is provided with a plurality of valve cores, each valve core corresponds to one operating lever, and the motion of different valve cores is controlled by operating different operating levers, so that different functions of the engineering machinery are realized; the second connecting rods 20 are bent, so that when the second connecting rods 20 are rotated relative to the first connecting rods 10, the distance between two adjacent second connecting rods 20 can be changed; the external force is an externally applied force and can be manually operated. At present, high-pressure fork truck on the market generally all is equipped with the heat dissipation water tank, and aircraft bonnet boss 71 is set to the top of heat radiation structures such as water tank and fan, and aircraft bonnet boss 71 is touched easily to the control rod in operation process, the utility model provides an aircraft bonnet boss 71 can be avoided through rotatory second connecting rod 20 to solve the problem that aircraft bonnet boss 71 is touched easily to the control rod.

Preferably, the operating end of the second link 20 is provided with a handle 50, and the handle 50 is preferably a ball handle for easy operation. The ball head handle is assembled on the second connecting rod 20 through threads, and the ball head handle is simple in structure and firm in connection.

In the present embodiment, one of the other end of the first link 10 and the connection end 30 has an internal spline, and the other has an external spline, and when the connection end 30 is in the connection state, the internal spline is engaged with the external spline; when the connection end 30 is in the disengaged state, the internal spline is disengaged from the external spline. Through internal spline and external splines cooperation, realize the relative fixed connection of link 30 and first connecting rod 10, simultaneously, the axis direction relative movement of spline can be followed with the external spline to the internal spline can take off with the external spline, at this moment, link 30 and first connecting rod 10 take off, link 30 can be to first connecting rod 10 rotation, thereby be convenient for realize link 30 and switch between connection status and the disengagement status, and the internal spline is connected reliably when cooperating with the external spline, the transmission power is good.

In the present embodiment, the other end of the first link 10 is configured with an external spline in the circumferential direction; the connecting end 30 is provided with a first hole section 331 with a downward opening, an inner spline is formed on the inner wall of the first hole section 331 along the circumferential direction, a first abutting surface 341 facing downward is formed at the upper end of the first hole section 331, the connection between the connecting end 30 and the first connecting rod 10 is realized through the matching of the inner spline and the outer spline, the connecting end 30 and the first connecting rod 10 cannot rotate relatively, the limiting of the connecting end 30 and the first connecting rod 10 along the radial direction is realized, meanwhile, when the inner spline and the outer spline are matched, the upper end surface of the first connecting rod 10 is abutted against the first abutting surface 341, the limiting of the connecting end 30 and the first connecting rod 10 along the axial direction is realized, the relatively fixed connection between the connecting end 30 and the first connecting rod 10 is realized, and the structure is stable. It will be appreciated that as an alternative embodiment, it is also possible to provide the connecting end 30 with a first shaft section extending downwards, which is configured with external splines in the axial direction; the other end of the first connecting rod 10 is configured with a blind hole, and an internal spline is configured in the blind hole, so that the first connecting rod 10 can be matched and connected with the connecting end 30 through matching of the internal spline and the external spline. Wherein, the other end of the first link 10 refers to one end of the first link 10 close to the connection end 30; down refers to the direction in which the arrow in fig. 3 points to "down"; up refers to the direction in which the arrow in fig. 3 points "up".

It should be noted that, the connection end 30 is moved upward along the axial direction of the spline to separate the internal spline from the external spline, so that the connection end 30 is switched from the connection state to the disconnection state, and the structure is simple and the operation is convenient. It is understood that, as an alternative embodiment, the internal spline and the external spline may not be provided, but the first link 10 may be directly configured as a polished rod, the first hole section 331 is configured as a hole with a smooth inner wall, the first link 10 extends into the first hole section 331, a transverse through hole is formed on a side wall of the first hole section 331, a plurality of holes are formed on an outer surface of the first link 10, a pin passes through one hole on the side wall of the first hole section 331 and then is inserted into one hole on the outer surface of the first link 10, so as to fix the first link 10 and the connection end 30, and when the distance between the operation levers needs to be adjusted, the pin is pulled out, the second link 20 is rotated, the second link 20 drives the connection end 30 to rotate relative to the first link 10, and when the second link 20 is rotated to a suitable position, the pin passes through the through hole on the side wall of the first hole section 331 and then is inserted into another hole on the outer surface of the first link 10, and the first link 10 is fixedly connected to the connection end 30 again, so as to switch the connection end 30 between the connection state and the disconnection state.

In this embodiment, the locking mechanism 40 includes a connecting member having one end fixed to the other end of the first link 10 through the connecting end 30, and an elastic member 43 having one end engaged with the other end of the connecting member and the other end of the elastic member 43 engaged with the connecting end 30, the elastic member 43 applying a force toward the connecting end 30 toward the first link 10. When the locking mechanism 40 is in the locking state, the elastic element 43 applies an acting force to the connecting end 30 towards the first connecting rod 10, so that the connecting end 30 is pressed towards the first connecting rod 10, the limiting of the connecting end 30 and the first connecting rod 10 along the axial direction is realized, and the connecting end 30 is locked in the connecting state; when the locking mechanism 40 is in the unlocking state, the elastic member 43 is further compressed, and once the external force applied to the locking mechanism 40 is removed, the elastic force of the elastic member 43 drives the connecting end 30 to move towards the first connecting rod 10, so that the connecting end 30 is automatically switched to the connecting state, the internal spline and the external spline are automatically engaged, the operation is simple, and the automation degree is high.

In this embodiment, the connecting end 30 has a second hole section 332 and an upward second abutting surface 342, the connecting member includes a connecting rod 41 and an abutting portion 42, one end of the connecting member passes through the second hole section 332 and is fixed to the other end of the first connecting rod 10, so as to realize the fixed connection between the connecting member and the first connecting rod 10, the diameter of the abutting portion 42 is larger than that of the connecting rod 41, the elastic member 43 is sleeved on the connecting rod 41 and located between the abutting portion 42 and the second abutting surface 342, and the elastic member 43 is in a compressed state so as to apply an acting force toward the first connecting rod 10 to the second abutting surface 342, wherein, the upward direction refers to the direction of the arrow in fig. 3; the lower refers to the direction in which the arrow in fig. 3 points to the "lower". Through setting up the diameter that the butt portion 42 is greater than the diameter of connecting rod 41, realize blocking the elastic component 43 between butt portion 42 and second butt face 342, through setting up the elastic component 43 that is in the compression state and being located between butt portion 42 and the second butt face 342, and wherein butt portion 42 is fixed, then elastic component 43 has downward effort to second butt face 342 all the time, press the link 30 to first connecting rod 10 all the time promptly, realize along axial spacing to link 30, the stability of holding structure. It is understood that, as an alternative embodiment, the elastic member 43 may not be sleeved on the connecting rod 41, the number of the elastic members 43 is a plurality of elastic members with smaller size, the plurality of elastic members 43 are distributed around the circumference of the connecting rod 41, and it is also possible to realize that one end of the elastic member 43 is matched with the abutting portion 42 and the other end is matched with the connecting end 30 to apply a force to the connecting end 30 towards the first link 10.

It should be noted that, the second hole section 332 is connected to the first hole section 331 and located above the first hole section 331, and a diameter of the second hole section 332 is smaller than a diameter of the first hole section 331, so as to form the first abutting surface 341; the first hole section 331, the second hole section 332 and the third hole section 333 are connected in sequence and form a through hole, so that the connecting member can be conveniently connected with the first connecting rod 10 after passing through the through hole.

Specifically, when the distance between the operating levers needs to be adjusted, only the second connecting rod 20 needs to be pulled upwards, the second connecting rod 20 drives the connecting end 30 to move upwards, the second abutting surface 342 of the connecting end 30 compresses the elastic member 43, and the internal spline is separated from the external spline, at this time, the locking mechanism 40 is in the unlocking state, the connecting end 30 is switched from the connecting state to the disengaging state, the connecting end 30 is separated from the first connecting rod 10, the second connecting rod 20 can be rotated to a proper position, then the second connecting rod 20 is loosened, under the action of the elastic force of the elastic member 43, the connecting end 30 moves towards the first connecting rod 10, the internal spline is automatically engaged with the external spline, the connecting end 30 is switched to the connecting state, the locking mechanism 40 is switched to the locking state, and therefore, the adjustment is completed, the operation is simple, and the automation degree is high.

In this embodiment, the connection end 30 further has a third hole section 333, the third hole section 333 is located above the second hole section 332, the diameter of the third hole section 333 is larger than that of the second hole section 332, and the lower end of the third hole section 333 forms a second abutment surface 342, wherein, above refers to the direction in which the arrow points "up" in fig. 3; the lower end refers to an end in a direction in which an arrow indicates "down" in fig. 3. The lower end of the third hole section 333 forms a second abutting surface 342, so that the connecting piece and the elastic piece 43 can be located in the third hole section 333, the structural appearance is neat, the third hole section 333 can protect the connecting piece and the elastic piece 43 from being damaged by the outside, and meanwhile, when the connecting end 30 moves upwards, the connecting piece also plays a role in guiding, and the stability of structural movement is further improved. It is understood that, as an alternative embodiment, the third hole section 333 may not be provided, in which case, the upper surface of the connecting end 30 directly constitutes the second abutting surface 342, and the compression and the limiting of the elastic element 43 can be realized, and the structure is simple and easy to process.

In this embodiment, the lower extreme of connecting rod 41 has the external screw thread, and threaded hole has been seted up to the upper end of first connecting rod 10, and the external screw thread cooperates with the screw hole, through realize connecting piece and first connecting rod 10's fixed connection in screwing up the screw hole of first connecting rod 10 with connecting rod 41, and be convenient for assemble and dismantle, make things convenient for later stage maintenance to change, easy operation and with low costs. Specifically, the connecting piece is screw or bolt, and screw and bolt are all comparatively common, and with low costs and the connection is effectual, and preferably, the connecting piece is the hex bolts, and with low costs and be convenient for operate.

In this embodiment, the elastic member 43 is a spring, which has a good elastic force, a stable structure and a low cost.

In the present embodiment, the connecting end 30 is configured as a flat plate and disposed at an angle to the main body portion of the second link 20, the connecting end 30 has a first connecting point 31 and a second connecting point 32 disposed at an interval, the first connecting point 31 is connected to the first link 10, and the second connecting point 32 is fixedly connected to the rod portion of the second link 20. Specifically, a through hole formed by the first hole section 331, the second hole section 332 and the third hole section 333 is provided at the first connection point 31, and the locking mechanism 40 is provided to pass through the through hole to be connected with the first link 10. The connecting end 30 is provided with the first connecting point 31 and the second connecting point 32 which are arranged at intervals, the first connecting point 31 is connected with the first connecting rod 10, the second connecting point 32 is connected with the second connecting rod 20, the first connecting rod 10 and the second connecting rod 20 are arranged at intervals, the axes of the first connecting rod 10 and the second connecting rod 20 are not overlapped, the distance between two adjacent second connecting rods 20 can be adjusted as long as the second connecting rod 20 rotates relative to the first connecting rod 10, and the adjusting effect is obvious.

The utility model also provides an engineering machine tool, it includes: the joystick 100 described above.

In this embodiment, the construction machine is a forklift, and the number of the levers 100 is plural, and the plural-way valve is used for controlling a multiple-way valve, and the multiple-way valve has plural valve cores, and each lever 100 controls one valve core. Specifically, one end of the first link 10 of the operating lever 100, which is far away from the second link 20, is connected with the transmission rod 63 through the rotating shaft 61, the rotating shaft 61 is rotatably disposed on the fixing portion 62, the fixing portion 62 is fixedly connected with the frame, the transmission rod 63 is connected with the valve core, and by operating the operating end of the second link 20, the operating lever 100 moves back and forth, and the transmission rod 63 is driven to move through the rotating shaft 61, so that the transmission rod 63 drives the valve core to act, and control over multiple valves is achieved, wherein the back and forth refers to the back and forth along the advancing direction of the forklift advancing/retreating.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. through designing the control rod 100 into two parts including the first connecting rod 10 and the second connecting rod 20, and through the cooperation of spline locking mechanism 40, the first connecting rod 10 and the second connecting rod 20 can rotate relatively, realize the regulation of interval between the second connecting rod 20 of two adjacent control rods, can satisfy different operators' operation requirement, and it is simple and convenient to handle, simple structure, safe and reliable, stability is high.

2. The second connecting rod 20 can rotate relative to the first connecting rod 10 to adjust the relative position, so that the problem of interference between the right hood boss 71 of the high-pressure forklift and the operating rod 100 can be solved, and meanwhile, the interference between the operating rod 100 and the combined switch 72 at the steering wheel can be avoided.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A joystick, comprising:

a first connecting rod (10) with one end suitable for being connected with the multi-way valve;

a second link (20) bent, one end of which is a connection end (30) and the other end of which is an operation end, the connection end (30) having a connection state of moving together with the first link (10) and a disengagement state of rotating relative to the first link (10);

a locking mechanism (40) having a locked state locking the connection end (30) in the connection state and an unlocked state placing the connection end (30) in the disconnection state, the locking mechanism (40) being adapted to be placed in the unlocked state by an external force.

2. Joystick according to claim 1, characterized in that one of the other end of the first link (10) and the connecting end (30) has internal splines, the other having external splines, the internal splines meshing with the external splines when the connecting end (30) is in the connected state; when the connecting end (30) is in a disengaged state, the internal spline is disengaged from the external spline.

3. Joystick according to claim 2, characterized in that the other end of the first link (10) is configured with the external splines in the circumferential direction; the connecting end (30) has a first bore section (331) which is open at the bottom, and the inner wall of the first bore section (331) is configured with an internal spline along the circumferential direction.

4. An operating lever according to any one of claims 1 to 3 wherein the locking mechanism (40) comprises a link member having one end fixed to the other end of the first link (10) through the connecting end (30) and an elastic member (43) having one end engaged with the other end of the link member and the other end engaged with the connecting end (30), the elastic member (43) applying a force to the connecting end (30) towards the first link (10).

5. The joystick of claim 4, wherein the connecting end (30) has a second hole section (332) and a second abutment surface (342) facing upward, the connecting member includes a connecting rod (41) and an abutment portion (42), one end of the connecting member passes through the second hole section (332) and is fixed on the other end of the first connecting rod (10), the diameter of the abutment portion (42) is larger than that of the connecting rod (41), the elastic member (43) is sleeved on the connecting rod (41) and is located between the abutment portion (42) and the second abutment surface (342), and the elastic member (43) is in a compressed state to apply a force to the second abutment surface (342) and towards the first connecting rod (10).

6. The lever according to claim 5, wherein there is further a third bore section (333) at the connection end (30), the third bore section (333) being located above the second bore section (332), the third bore section (333) having a diameter larger than the diameter of the second bore section (332), a lower end of the third bore section (333) forming the second abutment surface (342).

7. Operating lever according to claim 5, characterized in that the lower end of the connecting rod (41) has an external thread, and the upper end of the first connecting rod (10) has a threaded hole, into which the external thread cooperates.

8. Operating lever according to claim 5, characterized in that the resilient member (43) is a spring.

9. The joystick according to any one of claims 1 to 3, wherein the connection end (30) is configured as a flat plate and is disposed at an angle to the main body portion of the second link (20), the connection end (30) has a first connection point (31) and a second connection point (32) disposed at an interval, the first connection point (31) is connected to the first link (10), and the second connection point (32) is fixedly connected to the rod portion of the second link (20).

10. A work machine, comprising: the joystick (100) of any one of claims 1 to 9.