Pedal mechanism of rice transplanter and rice transplanter

Abstract

The utility model discloses a rice transplanter pedal mechanism and a rice transplanter, and belongs to the technical field of agricultural machinery. The pedal comprises a mounting panel and a pedal body which are arranged up and down, the mounting panel and the pedal body are connected through a rotating assembly, the rotating assembly comprises rotating rods rotationally arranged on the two sides of the mounting panel, the other ends of the rotating rods are connected with the pedal body, and the two rotating rods are connected through a driving rod; the driving rod is connected with a driving source, the driving source drives the rotating rod to swing along a hinge point between the rotating rod and the mounting panel through the driving rod, and then the pedal is driven to perform lifting operation; in the non-use state, the pedal plate is folded, interference between the pedal plate and a soft mud layer and between the pedal plate and a ridge can be effectively prevented, and therefore the service life of the pedal plate can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and more specifically, relates to a pedal mechanism of a transplanter and a transplanter. Background Technique

[0002] A transplanter is a planting machine that plants rice seedlings in paddy fields. Due to its high operation efficiency and much lower labor intensity compared with traditional manual transplanting, it is currently widely used in agricultural mechanized operations. Generally, a motorized transplanter has a body including front wheels and rear wheels, and key components such as a power unit and a planting unit arranged on the body. As an auxiliary part of the transplanter, although the pedal is not as important as key components such as the power unit and the planting unit, it provides a convenient and fast way for the operator to get on and off the machine, enabling the operator to enter and leave the transplanter more easily, thereby improving work efficiency and operation convenience.

[0003] However, the existing pedals are all fixed. When the transplanter operates in the field with too deep soft mud layer, the pedal is prone to interference with the soft mud layer, thus affecting the normal use of the transplanter. In addition, when the transplanter works close to the ridge, the pedal may easily rub against the ridge, resulting in deformation or damage of the pedal. The damage of the pedal not only affects the convenience of the user's getting on and off the machine, but also may pose certain safety hazards to the user. Therefore, designing a transplanter pedal that is not prone to interference with the soft mud layer and the ridge has important practical significance in production.

[0004] In the related art, a series of technical improvements on the transplanter pedal have also been disclosed. For example, in the patent of CN219124759U, an unmanned transplanter is disclosed. In this application, by installing a second support frame on the outside of the base and a pedal on the outside of the second support frame, the up and down movement of the operator is facilitated. At the same time, a second anti-slip strip is installed on the top of the pedal to prevent the user from falling due to slipping, thus ensuring the safety of the user. However, the problem that the pedal is prone to interference with the ridge, thus affecting its service life, has not been effectively solved in this application. Content of the Utility Model

[0005] 1. Problems to be Solved

[0006] In view of at least some of the above problems in the prior art, the utility model proposes a pedal mechanism of a transplanter, aiming to solve the problem that the existing transplanter pedal is prone to rubbing against the ridge during the working process.

[0007] 2. Technical Solution

[0008] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0009] A pedal mechanism of a transplanter according to the present utility model includes an installation panel and a foot pedal arranged vertically. The installation panel and the foot pedal are connected by a rotating component.

[0010] The rotating component includes rotating rods rotatably arranged on both sides of the installation panel. The other end of the rotating rod is connected to the foot pedal, and the two rotating rods are connected by a driving rod.

[0011] The driving rod is connected with a driving source, and the driving source drives the rotating rod to rotate through the driving rod to complete the lifting or lowering action of the foot pedal.

[0012] Further, the rotating rod includes a first connecting rod and a second connecting rod arranged in parallel, and both the first connecting rod and the second connecting rod are hinged to the foot pedal; the foot pedal is horizontally arranged between two groups of rotating rods, and the foot pedal can always remain horizontal as the rotating rod rotates.

[0013] Further, a micro switch is arranged on the installation panel, and a touch plate matched with the micro switch is arranged on the rotating component; the touch plate and the micro switch form a first limiting component for limiting the swinging angle of the rotating rod.

[0014] Further, a stop block is also arranged on the installation panel, and a limiting block matched with the stop block is arranged on the rotating component; the stop block and the limiting block form a second limiting component for limiting the swinging angle of the rotating rod, and the limiting swinging angle of the second limiting component is greater than that of the first limiting component.

[0015] Further, two micro switches are arranged and distributed on both sides of the driving rod; the touch plate is arranged on the first connecting rod.

[0016] Further, the limiting block includes an upper limiting block and a lower limiting block; wherein, the upper limiting block is formed by the side wall of the first connecting rod; the lower limiting block is arranged on the driving rod.

[0017] Further, both sides of the installation panel each have a bent section extending downward, and an assembly hole for the corresponding connecting rod to be rotatably connected is opened on the bent section; wherein, a connecting sleeve is arranged in the assembly hole for installing the first connecting rod, and the end of the driving rod passes through the through hole on the first connecting rod and extends into the connecting sleeve.

[0018] Further, a connecting pin is arranged at the end of the second connecting rod, and a gasket and an opening pin are assembled after passing through the corresponding assembly hole on the bent section.

[0019] Further, the driving source is a DC worm and gear reduction motor, and the reduction motor is arranged at the bottom of the installation panel through a mounting plate.

[0020] The present utility model also provides a transplanter, including a machine body and the above-mentioned pedal mechanism, wherein the pedal mechanism is arranged at the bottom of the machine body through a mounting panel.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] (1) For the pedal mechanism of the transplanter of the present utility model, the mounting panel and the foot pedal are connected by a rotating rod. Driven by a driving source, the rotating rod swings along the hinge point with the mounting panel, thereby driving the foot pedal to perform lifting operations; when in a non-use state, the foot pedal is retracted, which can effectively prevent interference between the foot pedal and the soft mud layer and the ridge, thus being beneficial to ensuring the service life of the foot pedal.

[0024] (2) For the pedal mechanism of the transplanter of the present utility model, the rotating rod includes a first connecting rod and a second connecting rod arranged in parallel, so that the foot pedal has four rotatable support points. On the one hand, it can improve the connection stability with the foot pedal; on the other hand, it can make the foot pedal maintain a horizontal state at different height positions, thereby ensuring the stability of the user during the stepping process.

[0025] (3) For the pedal mechanism of the transplanter of the present utility model, through the setting of the first limiting component, when the trigger plate rotates to the position of the micro switch, the micro switch is activated and the driving source stops working, which can effectively prevent the rotating angle of the rotating rod from exceeding the preset position too much and even colliding with the mounting panel; at the same time, through the second limiting component, after the first limiting component fails, the second limiting component can continue to play a limiting role, thereby further ensuring the safety of the rotation of the rotating component.

[0026] (4) For the transplanter of the present utility model, the pedal mechanism is arranged at the bottom of the machine body. When the foot pedal needs to be used, the foot pedal is lowered and extended to the side of the machine body for the user to board the machine; when the transplanter is working, the foot pedal can be retracted to the bottom of the machine body without protruding from the side of the machine body, thereby further reducing the risk of collision with the ridge. Description of the drawings

[0027] Figure 1 is a schematic structural diagram of a pedal mechanism of a transplanter of the present utility model;

[0028] Figure 2 is a schematic diagram of a pedal mechanism of a transplanter of the present utility model in different working states;

[0029] Figure 3 is an exploded view of the structure of a pedal mechanism of a transplanter of the present utility model;

[0030] Figure 4 This is the circuit control diagram of the first limit component in the present utility model.

[0031] In the figure: 1. Mounting panel; 11. Bending section; 12. Assembly hole; 2. Foot pedal;

[0032] 3. Rotating assembly; 31. Rotating rod; 311. First connecting rod; 312. Second connecting rod; 32. Driving rod; 33. Connecting sleeve; 34. Mounting plate; 35. Driving source;

[0033] 4. Limit assembly; 41. Microswitch; 42. Touch plate; 43. Stopper; 44. Limit block;

[0034] 5. Power supply; 6. Controller; 7. Changeover switch. Detailed implementation mode

[0035] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the accompanying drawings.

[0036] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] The present utility model will be further described below in conjunction with specific embodiments.

[0038] As Figure 1 , Figure 2 shown, a pedal mechanism of a transplanter in this embodiment includes a mounting panel 1, a foot pedal 2 and a rotating assembly 3. Among them, the mounting panel 1 serves as the installation basis for the entire pedal mechanism and is used to complete the connection work with the transplanter. The foot pedal 2 is used for the user's foot operation to facilitate getting on and off the machine. The rotating assembly 3 is used to connect the mounting panel 1 and the foot pedal 2 and can drive the foot pedal 2 to be lifted or lowered so that it reaches the predetermined rising position and falling position.

[0039] Refer to Figure 3As shown in the figure, the rotating assembly 3 includes a rotating rod 31, a driving rod 32, and a driving source 35. Among them, the rotating rods 31 are relatively arranged on both sides of the mounting panel 1. One end of each rotating rod 31 is hinged to the mounting panel 1, and the other end is connected to the foot pedal 2. The two sets of relatively arranged rotating rods 31 are connected by a driving rod 32, and the driving rod 32 is connected to a driving source 35. The driving source 35 drives the rotating rod 31 to rotate through the driving rod 32, and thus the lifting operation of the foot pedal 2 can be completed.

[0040] As a preferred embodiment of the rotating rod 31, in this embodiment, the rotating rods 31 on the same side are both composed of a first connecting rod 311 and a second connecting rod 312 arranged in parallel, and both the first connecting rod 311 and the second connecting rod 312 are rotatably connected to the foot pedal 2. The foot pedal 2 is horizontally arranged between the two sets of rotating rods 31, so that the foot pedal 2 has four rotatable support points. On the one hand, it can improve the connection stability with the foot pedal 2; on the other hand, it can make the foot pedal 2 maintain a horizontal state at different height positions, thereby ensuring the stability of the user during the stepping process.

[0041] Specifically, both sides of the mounting panel 1 each have a bent section 11 extending downward. The foot pedal 2 and the rotating assembly 3 are both located between the two bent sections 11, and the bent section 11 is provided with an assembly hole 12 for the corresponding connecting rod to be rotatably connected. Among them, a connecting sleeve 33 is provided in the assembly hole 12 for installing the first connecting rod 311, and the end of the driving rod 32 passes through the through hole on the first connecting rod 311 and extends into the connecting sleeve 33. Of course, in order to prevent interference with the sludge layer due to the excessive height (i.e., the downward extension distance) of the bent section 11, on the basis of ensuring the connection strength requirements, the height of the bent section 11 should be as small as possible.

[0042] Preferably, the connecting sleeve 33 is integrally in a T-shaped structure, and its end has a boss. The connecting sleeve 33 is inserted into the corresponding assembly hole 12 from the outside of the bent section 11, and the end boss of it can be locked and fixed with the bent section 11 through a fastening bolt.

[0043] In this embodiment, the drive source 35 can be a DC worm and worm gear reduction motor, which has good self-locking performance and can well hold the pedal in a preset position. Moreover, the reduction motor can be arranged at the bottom of the mounting panel 1 through the mounting plate 34. The driving rod 32 is an overall hexagonal shaft, which includes a hexagonal rod body and connecting sections at both ends of the rod body, and a step surface is formed between the connecting section and the rod body. A cylindrical section and a square section are machined on the connecting section. Among them, the cylindrical section passes through the through hole on the first connecting rod 311 and extends into the inner hole of the connecting sleeve 33 for rotatable connection; while the square section is clamped in the through hole on the first connecting rod 311 and can drive the first connecting rod 311 to rotate. At the same time, the end of the connecting sleeve 33 and the step surface are respectively located on both sides of the first connecting rod 311 and can be used to limit the axial movement of the first connecting rod 311.

[0044] A connecting pin is provided on the outer side of the second connecting rod 312 near the end. The free end of the connecting pin passes through the corresponding assembly hole 12, extends to the outside of the bent section 11, and is assembled with a gasket and an opening pin to ensure the stability of the assembly between the connecting pin and the assembly hole 12 and prevent it from falling off.

[0045] Furthermore, the assembly hole 12 is arranged as close as possible to one end of the bent section 11, so that the rotating rod 31 can drive the foot pedal 2 to extend out of the mounting panel 1 with as small a swing angle as possible for the operator to use.

[0046] In the pedal mechanism of a transplanter of this embodiment, the mounting panel 1 and the foot pedal 2 are connected by a rotating rod 31. Driven by the drive source 35, the rotating rod 31 swings along the hinge point with the mounting panel 1, and then drives the foot pedal 2 to perform a lifting operation; when not in use, the foot pedal 2 is retracted, which can effectively prevent the foot pedal 2 from interfering with the soft mud layer and the ridge, thus being beneficial to ensuring the service life of the foot pedal 2.

[0047] As another implementation manner of the pedal mechanism of a transplanter in this embodiment, a limiting component 4 is further added on the basis of the above embodiment to limit the rotation angle of the rotating component 3.

[0048] Specifically, referring to Figure 3 As shown, the limiting component 4 includes a first limiting component, and the first limiting component includes a micro switch 41 and a trigger plate 42, and the micro switch 41 is electrically connected to the drive source 35. When the micro switch 41 and the trigger plate 42 cooperate, the drive source 35 can be controlled to stop working, and then the swinging action of the rotating rod 31 stops, so as to ensure that the foot pedal 2 can stay at a preset position.

[0049] Among them, the microswitch 41 can be arranged on the mounting panel 1 through the mounting plate 34, and a microswitch 41 is arranged on each side of the axial direction of the driving rod 32, respectively used for the two end positions of the swing range of the rotating rod 31 (that is Figure 2 the positions where it stays in the rising state and the falling state in

[0050] reference Figure 4 As shown, the power supply 5 (such as a storage battery) supplies power to the controller 6, and the control circuit is energized. When the change-over switch 7 is in the "down" gear (that is, the a and c end points are connected), at this time the controller 6 supplies the forward rotation power to the motor; when the downward moving touch plate 42 rotates to the position corresponding to the microswitch 41, the microswitch 41 is triggered, the downward limit switch k1 is connected, and the controller 6 will stop supplying power to the motor, and the motor stops rotating.

[0051] Similarly, when the change-over switch 7 is in the "up" gear (that is, the a and b end points are connected), at this time the controller 6 supplies the reverse rotation power to the motor; when the upward moving touch plate 42 rotates to the position corresponding to the microswitch 41, the microswitch 41 is triggered, the upward limit switch k2 is connected, and the controller 6 will stop supplying power to the motor, and the motor stops rotating. At the same time, to prevent the motor from being stuck or other failures, the motor is energized for a long time and overheats and burns out. In this embodiment, after the controller 6 is energized for a period of time, such as 10 s, and still has not received the connection signal of the downward limit switch k1 or the upward limit switch k2, the controller 6 will automatically stop supplying power to the motor to prevent the motor from overheating and burning out.

[0052] For a pedal mechanism of a transplanter in this embodiment, through the setting of the first limiting component, when the touch plate 42 rotates to the position corresponding to the microswitch 41, the microswitch 41 is activated and the drive source 35 stops working, which can effectively prevent the rotation angle of the rotating rod 31 from exceeding the preset position too much and even colliding with the mounting panel 1.

[0053] The above-mentioned first limiting component is used in cooperation with the electronic control system, although it can limit the swing angle of the rotating rod 31. However, because electronic products are easily damaged, for example, when the microswitch 41 is damaged or the motor cannot stop in time, the rotation limit of the rotating rod 31 gets out of control, which will cause damage to other components.

[0054] To this end, in this embodiment, the limit assembly 4 further includes a second limit assembly, which uses a mechanical structure of a stop block 43 and a limit block 44 to perform forced limit, and the second limit assembly is activated only after the first limit assembly fails. The stop block 43 can be set on the installation panel 1, and the limit block 44 can be set on the rotating assembly 3 and rotate with the rotating assembly 3.

[0055] Specifically, refer to Figure 3 As shown, the limit block 44 can be divided into an upper limit block and a lower limit block, which are respectively used to limit the two end positions of the swing range of the rotating rod 31. Among them, the upper limit block can be directly formed by the side wall of the first connecting rod 311, and the stop block 43 that cooperates with the upper limit block is a positioning column; when the first connecting rod 311 moves into place, its side wall abuts against the positioning column to limit the first connecting rod 311 from continuing to rise.

[0056] The lower limit block can be a limit block with a step-shaped notch, and the stop block 43 that cooperates with the lower limit block is an L-shaped positioning block, and the lower limit block is sleeved on the driving rod 32; when the lower limit block rotates into place with the driving rod 32, the lower limit block on it abuts against the L-shaped positioning block to limit the continued descent of the first connecting rod 311.

[0057] At the same time, in order to ensure that the second limit assembly is activated only after the first limit assembly fails, the limit swing angle of the second limit assembly on the rotating rod 31 must be greater than that of the first limit assembly. The limit swing angle here refers to the maximum swing angle of the rotating rod 31 when the foot pedal 2 switches between the ascending state and the descending state, that is, Figure 2 The angle shown. That is, whether the rotating rod 31 is in the process of rising or falling, the touch plate 42 rotates to the corresponding micro switch 41 first, and the rotating rod 31 can be normally limited; at this time, the limit block 44 has not rotated to the corresponding stop block 43, and there is no contact between the two. When the automatic limit action between the touch plate 42 and the micro switch 41 fails, the rotating rod 31 will continue to rotate, so that the limit block 44 and the stop block 43 conflict with each other, and forced limit is performed.

[0058] At the same time, it should be noted that in order to reduce the height occupied by the pedal mechanism in the ascending state to prevent interference with the soft mud layer, the rotating rod 31 should be kept in a horizontal state as much as possible in the ascending state. In the descending state, the rotating rod 31 needs to exceed the vertical plane, and preferably, the angle between the rotating rod 31 and the vertical plane is 10-45°.

[0059] Meanwhile, to prevent interference with the cooperation between the trigger plate 42 and the micro switch 41, and between the limit block 44 and the stop block 43 during the ascending process, the second link 312 and the first link 311 on the same side are arranged in a staggered manner, and the second link 312 is located outside the first link 311.

[0060] For the pedal mechanism of the transplanter in this embodiment, through the setting of the first limiting component, when the trigger plate 42 rotates to the position of the micro switch 41, the micro switch 41 is activated and the drive source 35 stops working, which can effectively prevent the rotation angle of the rotating rod 31 from exceeding the preset position, and even prevent collision with the mounting panel 1 and damage to the equipment. Meanwhile, through the second limiting component, after the first limiting component fails, the second limiting component can continue to play a limiting role, thereby further ensuring the safety of the rotation of the rotating component 3.

[0061] In addition, this embodiment also provides a transplanter, which includes a machine body and the above-mentioned pedal mechanism, and the pedal mechanism is equipped on both sides of the machine body to facilitate the operator to board the machine from different sides. Meanwhile, the pedal mechanism can be arranged on the machine body through the mounting panel 1. Preferably, the pedal mechanism is arranged at the bottom of the machine body. In this way, when the transplanter is working, the foot pedal can be retracted to the bottom of the machine body without protruding from the side of the machine body, thereby further reducing the risk of collision with the ridge.

[0062] The above schematically describes the present invention and its implementation manners. This description is not restrictive, and only one of the implementation manners of the present invention is shown in the drawings. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A pedal mechanism for a rice transplanter, comprising an installation panel (1) arranged vertically and a foot pedal (2), characterized in that: The installation panel (1) and the foot pedal (2) are connected by a rotating assembly (3). The rotating assembly (3) includes rotating rods (31) rotatably arranged on both sides of the installation panel (1). The other end of the rotating rod (31) is connected to the foot pedal (2), and the two rotating rods (31) are connected by a driving rod (32). The driving rod (32) is connected to a driving source (35). The driving source (35) drives the rotating rod (31) to rotate through the driving rod (32) to complete the lifting or lowering action of the foot pedal (2).

2. The pedal mechanism of a rice transplanter according to claim 1, characterized in that: The rotating rod (31) includes a first connecting rod (311) and a second connecting rod (312) arranged in parallel. Both the first connecting rod (311) and the second connecting rod (312) are hinged to the foot pedal (2). The foot pedal (2) is horizontally arranged between two groups of rotating rods (31), and the foot pedal (2) can always remain horizontal as the rotating rod (31) rotates.

3. The pedal mechanism of a rice transplanter according to claim 1 or 2, characterized in that: A microswitch (41) is provided on the installation panel (1), and a touch plate (42) cooperating with the microswitch (41) is provided on the rotating assembly (3). The touch plate (42) and the microswitch (41) form a first limiting assembly for limiting the swinging angle of the rotating rod (31).

4. The pedal mechanism of a rice transplanter according to claim 3, characterized in that: A stop block (43) is further provided on the installation panel (1), and a limiting block (44) cooperating with the stop block (43) is provided on the rotating assembly (3). The stop block (43) and the limiting block (44) form a second limiting assembly for limiting the swinging angle of the rotating rod (31), and the limiting swinging angle of the second limiting assembly is greater than that of the first limiting assembly.

5. The pedal mechanism of a rice transplanter according to claim 4, characterized in that: Two microswitches (41) are provided and are distributed on both sides of the driving rod (32). The touch plate (42) is arranged on the first connecting rod (311).

6. The pedal mechanism of a rice transplanter according to claim 5, characterized in that: The limiting block (44) includes an upper limiting block and a lower limiting block. Among them, the upper limiting block is formed by the side wall of the first connecting rod (311), and the lower limiting block is arranged on the driving rod (32).

7. The pedal mechanism of a rice transplanter according to claim 2, characterized in that: Both sides of the installation panel (1) each have a downward extending bending section (11). An assembly hole (12) for the corresponding connecting rod to rotate and connect is opened on the bending section (11). Among them, a connecting sleeve (33) is provided in the assembly hole (12) for installing the first connecting rod (311), and the end of the driving rod (32) passes through the through hole on the first connecting rod (311) and extends into the connecting sleeve (33).

8. The pedal mechanism of a rice transplanter according to claim 7, characterized in that: A connecting pin is provided at the end of the second connecting rod (312). After passing through the corresponding assembly hole (12) on the bending section (11), a gasket and a split pin are assembled.

9. The pedal mechanism of a rice transplanter according to claim 8, characterized in that: The driving source (35) is a DC worm and gear reduction motor, and the reduction motor is arranged at the bottom of the installation panel (1) through a mounting plate (34).

10. A transplanter, comprising a machine body and a pedal mechanism located on the machine body, characterized in that: The pedal mechanism is a pedal mechanism of a transplanter as described in any one of claims 1-9, and the pedal mechanism of the transplanter is arranged at the bottom of the machine body through the installation panel (1).

Images