Control mechanism

Abstract

The utility model discloses a control mechanism, and relates to the technical field of agricultural machinery. A control mechanism comprises a support, a gear seat arranged on the support, a control rod rotationally arranged on the support, an elastic gear fixing assembly arranged between the control rod and the gear seat and an elastic reset piece arranged between the control rod and the support, and the gear seat is provided with a locking position and a neutral position. A locking structure is arranged at the locking position, and when the operating rod is rotated by overcoming the elastic force of the elastic reset piece to enable the elastic gear fixing assembly to be matched with the locking structure, the operating rod is locked at the locking position; when the operating rod is rotated to enable the elastic gear fixing assembly to be separated from the locking structure, the operating rod is driven by the elastic reset piece to move to the neutral position. The control mechanism provided by the utility model is simple in structure and convenient to install, the control accuracy is improved, and the use experience feeling of a user is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a control mechanism. Background Art

[0002] With the advancement of agricultural mechanization and modernization in my country, the use of agricultural machinery in field agriculture has become more and more extensive, and the operating mechanism is an indispensable and important structure of agricultural machinery.

[0003] The existing control mechanism has a large number of parts and a complex structure, which is not only inconvenient to install, but also involves a large number of parts, a corresponding increase in the number of moving links, and a large cumulative gap between parts, which leads to a large idle stroke and a large loss of motion efficiency, making it impossible for users to achieve the purpose of accurately controlling agricultural machinery, seriously reducing the user experience. Utility Model Content

[0004] In view of the above defects in the prior art, the utility model aims to provide a control mechanism, which has a simple structure and is not only easy to install, but also improves the control accuracy and optimizes the user experience.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A manipulation mechanism comprises a support, a gear seat arranged on the support, a manipulation lever rotatably arranged on the support, an elastic stop assembly arranged between the manipulation lever and the gear seat, and an elastic return member arranged between the manipulation lever and the support, wherein a locking position and a neutral position are arranged on the gear seat, and a locking structure is arranged at the locking position, and when the manipulation lever is rotated to overcome the elastic force of the elastic return member so that the elastic stop assembly cooperates with the locking structure, the manipulation lever is locked in the locking position; when the manipulation lever is rotated to disengage the elastic stop assembly from the locking structure, the manipulation lever moves to the neutral position driven by the elastic return member.

[0007] Wherein, the support includes a seat body and a bracket arranged on one side of the seat body, a rotating shaft is rotatably arranged between the seat body and the bracket, the operating lever is arranged on the rotating shaft and is located between the seat body and the bracket; one end of the rotating shaft extends out of the seat body, the gear seat is arranged on the other side of the seat body and is located on the side of the rotating shaft, one end of the elastic fixing component is connected to the protruding end of the rotating shaft, and the other end of the elastic fixing component rests on the gear seat.

[0008] Wherein, the elastic stop assembly includes a stop arm with an inner cavity and an opening at one end, and an elastic member and a rolling member arranged in the stop arm, the unopened end of the stop arm is fixedly arranged on the rotating shaft, the open end of the stop arm is close to the gear seat, the rolling member is located between the elastic member and the gear seat, and the rolling member is pressed against the gear seat under the elastic force of the elastic member.

[0009] Wherein, the gear seat includes a fixing part and a gear part, the fixing part is arranged on the seat body, the gear part is protrudingly arranged on a side of the fixing part close to the rotating shaft and the gear part extends circumferentially with the axis of the rotating shaft as the central axis, the locking position and the neutral position are both arranged on the gear part, and the rolling element rests on the gear part.

[0010] There are two locking positions, and two intersecting tracks for the rolling of the rolling element are arranged obliquely on the inner sides of the two locking positions. The connection point of the two tracks is the neutral position, and the two locking positions and the two tracks are symmetrically arranged about the neutral position.

[0011] Wherein, a boss is provided at the locking position, and the locking structure is a slot provided on the boss and adapted to the rolling element, and all the slots, the boss and the track are smoothly connected through rounded corners.

[0012] Among them, a limit column parallel to the rotating shaft is arranged between the seat body and the bracket, and the limit column corresponds to the neutral position; the elastic reset member is a torsion spring which is sleeved on the rotating shaft and located between the seat body and the bracket, and the two torsion arms of the torsion spring are respectively located on both sides of the limit column, and the joystick is provided with a lever for moving the two torsion arms, and the lever is located between the two torsion arms.

[0013] A magnet is arranged at one end of the rotating shaft close to the bracket, and a Hall sensor is arranged at a position of the bracket corresponding to the magnet. The Hall sensor is used to detect the strength and direction of the magnetic field generated by the magnet.

[0014] Wherein, wear-resistant structures are respectively arranged between the rotating shaft and the seat body, and between the rotating shaft and the bracket.

[0015] Wherein, the joystick is provided with a handle.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are:

[0017] The operating mechanism provided by the utility model has a gear seat on the support, an operating rod rotatably arranged on the support, an elastic fixing assembly is arranged between the operating rod and the gear seat, and an elastic return piece is arranged between the operating rod and the support. When in use, the operating rod can be locked in the locking position by rotating the operating rod only by overcoming the elastic force of the elastic return piece so that the elastic fixing assembly cooperates with the locking structure; the operating rod can be moved to the neutral position under the drive of the elastic return piece only by rotating the operating rod so that the elastic fixing assembly disengages from the locking structure. Therefore, compared with the prior art, the operating mechanism in the utility model has fewer parts and a simple structure, which is not only convenient for installation, but also reduces the accumulated gap between parts, thereby improving the control accuracy and optimizing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the operating mechanism of the utility model from the first perspective;

[0019] Figure 2 This is a structural schematic diagram of the operating mechanism of the utility model from a second viewing angle;

[0020] Figure 3 This is a schematic structural diagram of the control mechanism of the utility model from a third viewing angle;

[0021] Figure 4 It is a cross-sectional view of the operating mechanism of the utility model;

[0022] Figure 5 yes Figure 1 Schematic diagram of the structure of the mid-range seat;

[0023] In the figure: 1. support; 11. seat body; 110. avoidance hole; 12. bracket; 2. gear seat; 21. fixing part; 22. gear part; 221. track; 222. boss; 223. slot; 3. joystick; 31. lever; 4. elastic fixed gear assembly; 41. fixed gear arm; 42. elastic member; 43. rolling member; 5. elastic reset member; 6. rotating shaft; 7. limiting column; 8. magnet; 9. Hall sensor; 10. wear-resistant bushing; 13. wear-resistant gasket. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] like Figures 1 to 5As shown, this embodiment provides an operating mechanism, including a support 1, a gear seat 2 arranged on the support 1, an operating rod 3 rotatably arranged on the support 1, an elastic fixing assembly 4 arranged between the operating rod 3 and the gear seat 2, and an elastic return member 5 arranged between the operating rod 3 and the support 1, a locking position and a neutral position are arranged on the gear seat 2, and a locking structure is arranged at the locking position, when the operating rod 3 is rotated to overcome the elastic force of the elastic return member 5 so that the elastic fixing assembly 4 cooperates with the locking structure, the operating rod 3 is locked in the locking position; when the operating rod 3 is rotated to disengage the elastic fixing assembly 4 from the locking structure, the operating rod 3 moves to the neutral position driven by the elastic return member 5.

[0026] Compared with the prior art, the control mechanism in this embodiment has fewer parts and a simpler structure, which is not only easy to install, but also reduces the cumulative gap between parts, thereby improving the control accuracy and optimizing the user experience.

[0027] The support 1 in this embodiment includes a seat body 11 and a bracket 12 arranged on one side of the seat body 11, a rotating shaft 6 is rotatably arranged between the seat body 11 and the bracket 12, and the operating lever 3 is arranged on the rotating shaft 6 and located between the seat body 11 and the bracket 12; one end of the rotating shaft 6 extends out of the seat body 11, the gear seat 2 is arranged on the other side of the seat body 11 and located on the side of the rotating shaft 6, one end of the elastic stop assembly 4 is connected to the extended end of the rotating shaft 6, and the other end of the elastic stop assembly 4 rests on the gear seat 2. Such an arrangement makes the structure of the operating mechanism simple and compact, and is convenient for spatial layout.

[0028] Specifically, the seat body 11 includes a mounting plate and a support plate that are vertically and integrally arranged. The bracket 12 is arranged on one side of the support plate and together with the support plate and the mounting plate, forms an installation space. The rotating shaft 6 is rotatably arranged on the support plate and the bracket 12. The mounting plate is provided with an avoidance hole 110 that is connected to the installation space, and the joystick 3 extends out of the avoidance hole 110; the rotating shaft 6 extends out of the support plate, and the gear seat 2 is arranged on the other side of the support plate and is located on the side of the rotating shaft 6.

[0029] The elastic stopper assembly 4 in this embodiment includes a stopper arm 41 having an inner cavity and an open end, and an elastic member 42 and a rolling member 43 arranged in the stopper arm 41. The unopened end of the stopper arm 41 is fixedly arranged on the rotating shaft 6, and the open end of the stopper arm 41 is close to the gear seat 2. The rolling member 43 is located between the elastic member 42 and the gear seat 2, and the rolling member 43 is pressed against the gear seat 2 under the elastic force of the elastic member 42. In this way, the self-locking function of the operating mechanism is realized, and the stability of the operating mechanism when in use is improved.

[0030] Since the spring has good elastic reset ability, the elastic member 42 in this embodiment is preferably a spring. Of course, an elastic rubber body can also be selected. The specific selection can be made according to actual needs, and this embodiment does not limit this.

[0031] The rolling element 43 in this embodiment is preferably a cylindrical pin. Of course, a ball, a ball pin, or a universal ball can also be selected. The specific selection can be made according to actual needs, and this embodiment does not limit this.

[0032] The gear seat 2 in this embodiment includes a fixing portion 21 and a gear portion 22. The fixing portion 21 is arranged on the support plate of the seat body 11. The gear portion 22 is protrudingly arranged on a side of the fixing portion 21 close to the rotating shaft 6 and the gear portion 22 extends circumferentially with the axis of the rotating shaft 6 as the central axis. The locking position and the neutral position are both arranged on the gear portion 22, and the rolling member 43 rests on the gear portion 22.

[0033] In this embodiment, two locking positions are provided, and two intersecting tracks 221 for rolling of the rolling element 43 are obliquely provided on the inner sides of the two locking positions. The junction of the two tracks 221 is the neutral position, and the two locking positions and the two tracks 221 are symmetrically arranged about the neutral position.

[0034] Specifically, a boss 222 is provided at the locking position, and the locking structure is a slot 223 provided on the boss 222 and adapted to the rolling element 43. In order to make the operating mechanism smoother to operate, in this embodiment, all the slots 223, bosses 222 and rails 221 are smoothly connected through rounded corners. The setting of the boss 222 improves the stability and control feel of the operating mechanism when it is self-locking.

[0035] In this embodiment, a limiting column 7 parallel to the rotating shaft 6 is arranged between the support plate of the seat body 11 and the bracket 12, and the limiting column 7 corresponds to the neutral position; since the torsion spring is a spiral spring that generates torsion or torsional force, it has the advantages of good elasticity, adjustable length, wide application range, reliable performance, etc. Therefore, the elastic reset member 5 in this embodiment is preferably a torsion spring that is sleeved on the rotating shaft 6 and located between the support plate of the seat body 11 and the bracket 12, and the two torsion arms of the torsion spring are respectively located on both sides of the limiting column 7 (see Figure 3 ), the joystick 3 is provided with a lever 31 for moving the two torsion arms, and the lever 31 is located between the two torsion arms. When the lever 31 moves one of the torsion arms, the other torsion arm is limited by the limiting column 7. By setting the torsion spring, the damping feeling of the operating mechanism during operation is enhanced.

[0036] In order to facilitate the detection of the position of the elastic limiting assembly 4, a magnet 8 is arranged at one end of the rotating shaft 6 close to the bracket 12 in this embodiment, and a Hall sensor 9 is arranged at the position of the bracket 12 corresponding to the magnet 8. The Hall sensor 9 is used to detect the strength and direction of the magnetic field generated by the magnet 8.

[0037] In order to extend the service life of the operating mechanism, in this embodiment, wear-resistant structures are respectively provided between the rotating shaft 6 and the seat body 11 and between the rotating shaft 6 and the bracket 12 .

[0038] Specifically, the wear-resistant structure is a wear-resistant bushing 10 sleeved on the rotating shaft 6. The wear-resistant bushing 10 includes a sleeve and a wear-resistant part circumferentially arranged at one end of the sleeve. In order to further improve the wear-resistant effect, a wear-resistant gasket 13 can also be optionally arranged between the wear-resistant part and the seat body 11 or the bracket 12. The wear-resistant gasket 13 is preferably a polytetrafluoro gasket.

[0039] The joystick 3 in this embodiment is provided with a handle (not shown in the figure), which further improves the manipulation feel.

[0040] The above is a preferred embodiment of the operating mechanism of the utility model. The utility model is not limited to the above specific implementation methods. Various changes made by ordinary technicians in this field based on the above conception without creative labor all fall within the protection scope of the utility model.

Claims

1. A control mechanism, characterized in that: The invention comprises a support, a gear seat arranged on the support, a joystick rotatably arranged on the support, an elastic stop component arranged between the joystick and the gear seat, and an elastic reset member arranged between the joystick and the support. The gear seat is provided with a locking position and a neutral position, and a locking structure is provided at the locking position. When the operating lever is rotated to overcome the elastic force of the elastic return member so that the elastic stop assembly cooperates with the locking structure, the operating lever is locked in the locking position; when the operating lever is rotated to disengage the elastic stop assembly from the locking structure, the operating lever moves to the neutral position driven by the elastic return member.

2. The operating mechanism according to claim 1, characterized in that: The support includes a seat body and a bracket arranged on one side of the seat body, a rotating shaft is rotatably arranged between the seat body and the bracket, the operating lever is arranged on the rotating shaft and is located between the seat body and the bracket; one end of the rotating shaft extends out of the seat body, the gear seat is arranged on the other side of the seat body and is located on the side of the rotating shaft, one end of the elastic fixing component is connected to the protruding end of the rotating shaft, and the other end of the elastic fixing component rests on the gear seat.

3. The operating mechanism according to claim 2, characterized in that: The elastic stop assembly includes a stop arm with an inner cavity and an opening at one end, and an elastic member and a rolling member arranged in the stop arm, the unopened end of the stop arm is fixedly arranged on the rotating shaft, the open end of the stop arm is close to the gear seat, the rolling member is located between the elastic member and the gear seat, and the rolling member is pressed against the gear seat under the elastic force of the elastic member.

4. The operating mechanism according to claim 3, characterized in that: The gear seat includes a fixing portion and a gear portion, the fixing portion is arranged on the seat body, the gear portion is protrudingly arranged on a side of the fixing portion close to the rotating shaft and the gear portion extends circumferentially with the axis of the rotating shaft as the central axis, the locking position and the neutral position are both arranged on the gear portion, and the rolling element rests on the gear portion.

5. The operating mechanism according to claim 4, characterized in that: There are two locking positions, and two intersecting tracks for the rolling of the rolling element are arranged obliquely on the inner sides of the two locking positions. The connection point of the two tracks is the neutral position, and the two locking positions and the two tracks are symmetrically arranged about the neutral position.

6. The operating mechanism according to claim 5, characterized in that: A boss is provided at the locking position, and the locking structure is a slot provided on the boss and adapted to the rolling element, and all the slots, the boss and the track are smoothly connected through rounded corners.

7. The operating mechanism according to claim 2, characterized in that: A limit column parallel to the rotating shaft is arranged between the seat body and the bracket, and the limit column corresponds to the neutral position; the elastic reset member is a torsion spring sleeved on the rotating shaft and located between the seat body and the bracket, and the two torsion arms of the torsion spring are respectively located on both sides of the limit column, and the joystick is provided with a lever for moving the two torsion arms, and the lever is located between the two torsion arms.

8. The operating mechanism according to claim 2, characterized in that: A magnet is arranged at one end of the rotating shaft close to the bracket, and a Hall sensor is arranged at a position of the bracket corresponding to the magnet. The Hall sensor is used to detect the intensity and direction of the magnetic field generated by the magnet.

9. The operating mechanism according to claim 2, characterized in that: Wear-resistant structures are respectively arranged between the rotating shaft and the seat body, and between the rotating shaft and the bracket.

10. The operating mechanism according to claim 1, characterized in that: The joystick is provided with a handle.

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