Gear locking safety device for mini-tiller

Abstract

The invention relates to the technical field of mini-tillers, and particularly discloses a gear locking safety device for a mini-tiller, which comprises a machine body gear connecting piece, a gear rod piece is connected to the top of the machine body gear connecting piece, a self-locking module is connected between the gear rod piece and the machine body gear connecting piece, and the self-locking module comprises an accompanying plate, a communicating notch, an iron plate and an electromagnet. The accompanying plate is in sliding fit with the top of the machine body gear connecting piece, the communicating notch is formed in the top of the accompanying plate, the bottom end of the communicating notch penetrates through the accompanying plate, the iron plates are symmetrically connected to the tops of the two sides of the machine body gear connecting piece front and back, and the electromagnets are arranged on the sides, opposite to the machine body gear connecting piece, of the iron plates; the safety operation module is arranged on the end rod, and automatic locking after gear adjustment is achieved through the self-locking module, so that the gear stability is guaranteed, the gear is not prone to shifting due to accidents such as bumping and vibration, manual mistaken collision and object mistaken collision, and safety is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of micro-tillers, and particularly relates to a gear locking safety device for a micro-tiller. Background Art

[0002] For a micro-tiller, when in use, the gear is operated to achieve the effects of forward and reverse movement. However, in the prior art, after the operator operates the gear, due to the lack of a self-locking structure on the gear, accidental situations such as bumpy vibration, human accidental touch, and object accidental collision will cause the gear to shift, thereby changing the operating state of the micro-tiller, affecting the use of the micro-tiller, and having a certain degree of danger, and the safety cannot be guaranteed. Summary of the Invention

[0003] The purpose of the present invention is to provide a gear locking safety device for a micro-tiller to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A gear locking safety device for a micro-tiller includes a body gear connecting member. A gear rod is connected to the top of the body gear connecting member. A self-locking module is connected between the gear rod and the body gear connecting member. The self-locking module includes a follower plate, a communication slot, an iron plate, and an electromagnet. The follower plate is slidably fitted on the top of the body gear connecting member. The communication slot is opened on the top of the follower plate, and the bottom end of the communication slot penetrates through the follower plate. The iron plates are symmetrically connected to the top of both sides of the body gear connecting member. The electromagnet is arranged on the side of the iron plate opposite to the body gear connecting member. A terminal rod is connected to the top of the gear rod. A safety operation module is arranged on the terminal rod. The safety operation module includes an unlocking cylinder, a first-level device slot, a first-level contact switch, an unlocking arc plate, and a first-level return spring. The unlocking cylinder is sleeved outside the terminal rod. The first-level device slot is opened in the terminal rod. The first-level contact switch is embedded in the first-level device slot. The unlocking arc plates are symmetrically arranged on both sides of the unlocking cylinder. The first-level return springs are symmetrically connected to the inner wall of the unlocking arc plate, and the end of the first-level return spring far from the unlocking arc plate is connected to the unlocking cylinder. The setting of the first-level return spring can push up the unlocking arc plate, so that the inner wall of the anti-slip arc plate can tightly press against the outer wall of the gear rod. Through the friction force between the inner wall of the anti-slip arc plate and the gear rod, the unlocking cylinder is not easily pushed.

[0006] Preferably, the self-locking module further includes a trigger ring, a sliding plate member, and a mounting notch. The trigger ring is disposed above the follower plate. The top end of the gear lever sequentially penetrates through the communication notch and the trigger ring, and the inner wall of the trigger ring is connected to the gear lever. There is a gap between the bottom surface of the trigger ring and the follower plate. The sliding plate members are symmetrically connected to the bottom of the follower plate in the front and rear. Two iron plates are located between the two sliding plate members, and the sliding plate members are in sliding fit with the iron plates. The mounting notch is opened on the side of the sliding plate member opposite to the iron plate. The electromagnet is embedded in the mounting notch. After the gear lever is adjusted to the appropriate gear, the trigger ring moves along with the gear lever. At the same time, the trigger ring contacts the secondary contact switch corresponding to this gear, so as to ensure that the secondary contact switch is triggered.

[0007] Preferably, the self-locking module further includes a mating plate member, a secondary equipment notch, a secondary contact switch, and an assembly plate member. The mating plate members are symmetrically arranged on the top of the body gear connector on the left and right, and there are four sets of mating plate members. The secondary equipment notch is opened on the side of the two mating plate members corresponding to each other on the left and right. The secondary contact switch is embedded in the secondary equipment notch. The assembly plate member is connected to the bottom of the two mating plate members corresponding to each other on the left and right on the opposite side, and the assembly plate member is connected to the body gear connector through a positioning bolt. The secondary contact switch transmits a signal to an external device terminal. The external device terminal receives the signal and controls the electromagnet to be energized, so that the electromagnet has magnetism, so that the electromagnet adsorbs and fixes the iron plate, fixes the sliding plate member and the follower plate, and fixes the gear lever through the follower plate, so as to realize the locking of the gear lever.

[0008] Preferably, the self-locking module further includes a blocking plate member and a stabilizing plate member. The blocking plate members are symmetrically connected to the bottom of the iron plate on the left and right, and the blocking plate members are connected to the body gear connector. The stabilizing plate member is disposed between the two blocking plate members corresponding to each other on the left and right, and the stabilizing plate member is connected to the sliding plate member. The top surface of the stabilizing plate member is in sliding fit with the iron plate. Under the restriction of the blocking plate member and the stabilizing plate member, the stability of the sliding plate member and the follower plate is ensured.

[0009] Preferably, the safety operation module further includes a circular notch, a secondary return spring, a top plate member, and a top rod. The circular notch is opened in the middle of the top of the end rod, and the bottom end of the circular notch communicates with the primary equipment notch. The secondary return spring and the top rod are both disposed in the circular notch. The bottom end of the secondary return spring is connected to the end rod. The top rod is disposed in the secondary return spring, and the top rod is located above the primary contact switch. The top plate member is connected to the top of the unlocking cylinder. The top end of the secondary return spring penetrates through the circular notch and is connected to the top plate member. The top end of the top rod penetrates through the circular notch and is connected to the middle of the bottom surface of the top plate member. The top plate member is lifted by the secondary return spring to prevent the top rod from accidentally touching the primary contact switch when the unlocking cylinder is not operated by personnel;

[0010] The bottom end of the unlocking cylinder is circumferentially and arrayedly connected with a limiting plate member, and the limiting plate member is located below the end rod. The unlocking cylinder is restricted by the limiting plate member to prevent the unlocking cylinder from detaching from the end rod.

[0011] Preferably, the safety operation module further includes a first-stage stop block, a second-stage stop block and a third-stage stop block. The first-stage stop blocks are symmetrically connected to both sides of the top of the top plate member in the left-right direction, and the bottom surface of the first-stage stop block is in sliding fit with the unlocking arc plate. The second-stage stop blocks are symmetrically arranged on both sides of the bottom of the unlocking arc plate in the front-back direction, and the unlocking arc plate is in sliding fit between two groups of second-stage stop blocks corresponding to the front and back. One end of the second-stage stop block is connected to the outer wall of the unlocking cylinder. The third-stage stop blocks are symmetrically connected to both sides of the bottom surface of the unlocking cylinder in the left-right direction, and the top surface of the third-stage stop block is in sliding fit with the unlocking arc plate. Under the action of the first-stage stop block, the second-stage stop block and the third-stage stop block, the unlocking arc plate is restricted, making it not easy for the unlocking arc plate to shift.

[0012] Preferably, the safety operation module further includes a vertical plate member and a linkage plate member. There are two groups of vertical plate members, and the vertical plate members are respectively connected to the front end of the bottom of the unlocking arc plate on the left side and the rear end of the bottom of the unlocking arc plate on the right side. The linkage plate member is connected to the bottom of the vertical plate member, and there is a gap between the linkage plate member and the gear lever. The linkage plate member is in an L-shaped structure. Under the connection of the vertical plate member and the linkage plate member, the anti-slip arc plate can move synchronously with the movement of the unlocking arc plate.

[0013] Preferably, the safety operation module further includes an anti-slip arc plate. The anti-slip arc plates are symmetrically arranged on both sides of the gear lever. The anti-slip arc plate on the left side is connected to the linkage plate member at the rear side, and the anti-slip arc plate on the right side is connected to the linkage plate member at the front side. The inner wall of the anti-slip arc plate is in contact with the outer wall of the gear lever. When the inner wall of the anti-slip arc plate contacts the outer wall of the gear lever, due to the friction force between the anti-slip arc plate and the gear lever, the unlocking cylinder is not easy to be pushed.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When the present invention is in use, through the self-locking module, automatic locking after gear adjustment is realized, thereby ensuring the stability of the gear lever, making it not easy for the gear lever to shift due to accidental factors such as bumps and vibrations, human accidental touches, and object accidental collisions, ensuring safety. When it is necessary to adjust the gear lever, by holding the two unlocking arc plates and pushing the unlocking cylinder towards the body gear connecting part, the self-locking module can be unlocked. The operation is convenient and fast. The unlocking arc plate drives the anti-slip arc plate to move, enabling the unlocking cylinder to be pushed, which is the first-stage unlocking structure. The unlocking cylinder drives the top rod to contact the first-stage contact switch, releasing the adsorption and fixation between the electromagnet and the iron plate, which is the second-stage unlocking structure. Through the double unlocking structure, it is not easy to cause the accidental release of the adsorption and fixation between the electromagnet and the iron plate due to accidental touches or bumps and vibrations. Description of the Drawings

[0015] Figure 1It is a schematic diagram of the overall structure of a gear locking safety device for a micro-tiller.

[0016] Figure 2 It is a schematic diagram of the follower plate of a gear locking safety device for a micro-tiller.

[0017] Figure 3 It is a schematic diagram of the unlocking cylinder of a gear locking safety device for a micro-tiller.

[0018] Figure 4 It is a schematic diagram of the bottom structure of the unlocking cylinder of a gear locking safety device for a micro-tiller.

[0019] Figure 5 It is a schematic diagram of the end rod of a gear locking safety device for a micro-tiller.

[0020] Figure 6 It is a schematic diagram of the cross-section of the end rod of a gear locking safety device for a micro-tiller.

[0021] Figure 7 It is a schematic diagram of the electromagnet of a gear locking safety device for a micro-tiller.

[0022] In the figure: 1. Body gear connecting piece; 2. Gear rod; 3. Self-locking module; 31. Follower plate; 32. Connecting notch; 33. Iron plate; 34. Electromagnet; 35. Trigger ring; 36. Sliding plate part; 37. Installation notch; 38. Matching plate part; 39. Secondary equipment notch; 310. Secondary contact switch; 311. Assembly plate part; 312. Blocking plate part; 313. Stabilizing plate part; 4. End rod; 5. Safety operation module; 51. Unlocking cylinder; 52. Primary equipment notch; 53. Primary contact switch; 54. Unlocking arc plate; 55. Primary return spring; 56. Circular notch; 57. Secondary return spring; 58. Top plate part; 59. Thumb rod; 510. Limiting plate part; 511. Primary stop block; 512. Secondary stop block; 513. Tertiary stop block; 514. Vertical plate part; 515. Linkage plate part; 516. Anti-slip arc plate. Detailed implementation manners

[0023] Example 1

[0024] Please refer to Figures 1 - 7As shown in the figure, a gear locking safety device for a micro-tiller includes a body gear connecting piece 1. A gear rod 2 is connected to the top of the body gear connecting piece 1. A self-locking module 3 is connected between the gear rod 2 and the body gear connecting piece 1. The self-locking module 3 includes a follower plate 31, a communication slot 32, an iron plate 33 and an electromagnet 34. The follower plate 31 is slidably fitted to the top of the body gear connecting piece 1. The communication slot 32 is opened at the top of the follower plate 31, and the bottom end of the communication slot 32 penetrates through the follower plate 31. The iron plates 33 are symmetrically connected to the top of both sides of the body gear connecting piece 1. The electromagnet 34 is arranged on the side of the iron plate 33 opposite to the body gear connecting piece 1. A terminal rod 4 is connected to the top of the gear rod 2. A safety operation module 5 is arranged on the terminal rod 4. The safety operation module 5 includes an unlocking cylinder 51, a primary equipment slot 52, a primary contact switch 53, an unlocking arc plate 54 and a primary return spring 55. The unlocking cylinder 51 is sleeved outside the terminal rod 4. The primary equipment slot 52 is opened in the terminal rod 4. The primary contact switch 53 is embedded in the primary equipment slot 52. The unlocking arc plates 54 are symmetrically arranged on both sides of the unlocking cylinder 51. The primary return springs 55 are symmetrically connected to the inner walls of the unlocking arc plates 54 up and down, and the ends of the primary return springs 55 far from the unlocking arc plates 54 are connected to the unlocking cylinder 51. The setting of the primary return spring 55 can lift the unlocking arc plate 54, so that the inner wall of the anti-slip arc plate 516 can be pressed against the outer wall of the gear rod 2. Through the friction between the inner wall of the anti-slip arc plate 516 and the gear rod 2, the unlocking cylinder 51 is not easily pushed.

[0025] Reference Figure 1 、 Figure 2 and Figure 7 As shown in the figure, the self-locking module 3 further includes a trigger ring 35, a sliding plate member 36 and an installation slot 37. The trigger ring 35 is arranged above the follower plate 31. The top end of the gear rod 2 sequentially penetrates through the communication slot 32 and the trigger ring 35, and the inner wall of the trigger ring 35 is connected to the gear rod 2. There is a gap between the bottom surface of the trigger ring 35 and the follower plate 31. The sliding plate members 36 are symmetrically connected to the bottom of the follower plate 31. The two iron plates 33 are located between the two sliding plate members 36, and the sliding plate members 36 are slidably fitted with the iron plates 33. The installation slot 37 is opened on the side of the sliding plate member 36 opposite to the iron plate 33. The electromagnet 34 is embedded in the installation slot 37. After the gear rod 2 is adjusted to the appropriate gear, the trigger ring 35 moves along with the gear rod 2, and at the same time, the trigger ring 35 contacts the secondary contact switch 310 corresponding to this gear, so as to ensure that the secondary contact switch 310 is triggered.

[0026] Reference Figure 1 and Figure 2As shown, the self-locking module 3 further includes a mating plate member 38, a secondary device notch 39, a secondary contact switch 310, and an assembly plate member 311. The mating plate member 38 is symmetrically arranged on the top of the body gear connector 1 in the left and right directions, and there are four groups of mating plate members 38. The secondary device notch 39 is opened on one side of the two groups of mating plate members 38 corresponding to each other on the left and right. The secondary contact switch 310 is embedded in the secondary device notch 39. The assembly plate member 311 is connected to the bottom of the two groups of mating plate members 38 corresponding to each other on the back side, and the assembly plate member 311 is connected to the body gear connector 1 through positioning bolts. The secondary contact switch 310 transmits a signal to the peripheral device terminal. The peripheral device terminal receives the signal and controls the electromagnet 34 to be energized, so that the electromagnet 34 has magnetism, so that the electromagnet 34 adsorbs and fixes to the iron plate 33, fixes the sliding plate member 36 and the follower plate 31, and fixes the gear rod member 2 through the follower plate 31, thereby realizing the locking of the gear rod member 2.

[0027] Reference Figure 1 and Figure 2 As shown, the self-locking module 3 further includes a blocking plate member 312 and a stabilizing plate member 313. The blocking plate member 312 is symmetrically connected to the bottom of the iron plate 33 in the left and right directions, and the blocking plate member 312 is connected to the body gear connector 1. The stabilizing plate member 313 is arranged between the two groups of blocking plate members 312 corresponding to each other on the left and right, and the stabilizing plate member 313 is connected to the sliding plate member 36. The top surface of the stabilizing plate member 313 is in sliding fit with the iron plate 33. Under the restriction of the blocking plate member 312 and the stabilizing plate member 313, the stability of the sliding plate member 36 and the follower plate 31 is ensured.

[0028] Reference Figure 1 and Figures 3 - 6 As shown, the safety operation module 5 further includes a circular notch 56, a secondary return spring 57, a top plate member 58, and a top rod 59. The circular notch 56 is opened in the middle of the top of the end rod 4, and the bottom end of the circular notch 56 is communicated with the primary device notch 52. The secondary return spring 57 and the top rod 59 are both arranged in the circular notch 56. The bottom end of the secondary return spring 57 is connected to the end rod 4. The top rod 59 is arranged in the secondary return spring 57 and is above the primary contact switch 53. The top plate member 58 is connected to the top of the unlocking cylinder 51. The top end of the secondary return spring 57 passes through the circular notch 56 and is connected to the top plate member 58. The top end of the top rod 59 passes through the circular notch 56 and is connected to the middle of the bottom surface of the top plate member 58. The top plate member 58 is lifted by the secondary return spring 57 to prevent the top rod 59 from accidentally touching the primary contact switch 53 when the unlocking cylinder 51 is not operated by personnel;

[0029] The bottom end of the unlocking cylinder 51 is circumferentially and arrayedly connected with limiting plate members 510, and the limiting plate members 510 are below the end rod 4. The unlocking cylinder 51 is restricted by the limiting plate members 510 to prevent the unlocking cylinder 51 from detaching from the end rod 4.

[0030] Reference Figure 1 and Figures 3 - 5 As shown, the safety operation module 5 further includes a first-level stop block 511, a second-level stop block 512 and a third-level stop block 513. The first-level stop block 511 is symmetrically connected to both sides of the top of the top plate member 58 in the left and right directions, and the bottom surface of the first-level stop block 511 is in sliding fit with the unlocking arc plate 54. The second-level stop blocks 512 are symmetrically arranged on both sides of the bottom of the unlocking arc plate 54 in the front and back directions, and the unlocking arc plate 54 is in sliding fit between two groups of second-level stop blocks 512 corresponding to the front and back. One end of the second-level stop block 512 is connected to the outer wall of the unlocking cylinder 51. The third-level stop blocks 513 are symmetrically connected to both sides of the bottom surface of the unlocking cylinder 51 in the left and right directions, and the top surface of the third-level stop block 513 is in sliding fit with the unlocking arc plate 54. Under the action of the first-level stop block 511, the second-level stop block 512 and the third-level stop block 513, the unlocking arc plate 54 is restricted, making it not easy for the unlocking arc plate 54 to shift.

[0031] Reference Figure 1 and Figures 3 - 5 As shown, the safety operation module 5 further includes a vertical plate member 514 and a linkage plate member 515. There are two groups of vertical plate members 514, and the vertical plate members 514 are respectively connected to the front end of the bottom of the unlocking arc plate 54 on the left side and the rear end of the bottom of the unlocking arc plate 54 on the right side. The linkage plate member 515 is connected to the bottom of the vertical plate member 514, and there is a gap between the linkage plate member 515 and the gear lever 2. The linkage plate member 515 has an L-shaped structure. Under the connection of the vertical plate member 514 and the linkage plate member 515, the anti-slip arc plate 516 can move synchronously with the movement of the unlocking arc plate 54.

[0032] Reference Figure 1 and Figures 3 - 5 As shown, the safety operation module 5 further includes an anti-slip arc plate 516. The anti-slip arc plates 516 are symmetrically arranged on both sides of the gear lever 2. The anti-slip arc plate 516 on the left side is connected to the linkage plate member 515 at the rear side, and the anti-slip arc plate 516 on the right side is connected to the linkage plate member 515 at the front side. The inner wall of the anti-slip arc plate 516 is in contact with the outer wall of the gear lever 2. When the inner wall of the anti-slip arc plate 516 contacts the outer wall of the gear lever 2, due to the frictional force between the anti-slip arc plate 516 and the gear lever 2, the unlocking cylinder 51 is not easy to be pushed.

[0033] Working principle: When a person uses a rotary tiller and adjusts the gear lever 2, under the action of the connecting notch 32, the follower plate 31 slides on the top of the body gear connecting piece 1 to cooperate with the movement of the gear lever 2. Under the restriction of the blocking plate member 312 and the stabilizing plate member 313, the stability of the sliding plate member 36 and the follower plate 31 is ensured. Since there are four groups of secondary contact switches 310, and the four groups of secondary contact switches 310 correspond to the R gear, 1st gear, 2nd gear, and 3rd gear of the rotary tiller respectively. After the gear lever 2 is adjusted to the appropriate gear, the trigger ring 35 moves along with the gear lever 2, and at the same time, the trigger ring 35 contacts the secondary contact switch 310 corresponding to this gear. The secondary contact switch 310 transmits the signal to the peripheral terminal. The peripheral terminal receives the signal and controls the electromagnet 34 to be energized, so that the electromagnet 34 has magnetism, thereby making the electromagnet 34 adsorb and fix with the iron plate 33, fixing the sliding plate member 36 and the follower plate 31, and fixing the gear lever 2 through the follower plate 31, so as to realize the locking of the gear lever 2. When the gear lever 2 needs to be adjusted again later, the person holds two unlocking arc plates 54 and presses the unlocking arc plates 54 tightly, so that the unlocking arc plates 54 move closer to the unlocking cylinder 51. The unlocking arc plates 54 drive the vertical plate member 514, the linkage plate member 515 and the anti-slip arc plate 516 to move, so that the anti-slip arc plate 516 disengages from the gear lever 2, preventing the friction between the anti-slip arc plate 516 and the gear lever 2 from affecting the subsequent pushing of the unlocking cylinder 51. After the anti-slip arc plate 516 disengages from the gear lever 2, the person pushes the unlocking cylinder 51, so that the unlocking cylinder 51 moves towards the body gear connecting piece 1. The top plate member 58 and the ejector rod 59 move along with the movement of the unlocking cylinder 51. When the ejector rod 59 contacts the primary contact switch 53, the primary contact switch 53 transmits the signal to the peripheral terminal. The peripheral terminal receives the signal and controls the electromagnet 34 to be powered off, releasing the adsorption and fixation between the electromagnet 34 and the iron plate 33, so that the follower plate 31 no longer restricts and fixes the gear lever 2, facilitating the person to adjust the gear lever 2 again;

[0034] The unlocking arc plate 54 drives the anti-slip arc plate 516 to move, enabling the unlocking cylinder 51 to be pushed, which is the primary unlocking structure. The unlocking cylinder 51 drives the ejector rod 59 to contact the primary contact switch 53, releasing the adsorption and fixation between the electromagnet 34 and the iron plate 33, which is the secondary unlocking structure. Through the dual unlocking structure, it is not easy to accidentally release the adsorption and fixation between the electromagnet 34 and the iron plate 33 due to accidental touch or bumpy vibration.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear locking safety device for a micro-tillage machine, comprising a machine body gear connecting member (1), characterized in that: The top of the machine body gear connecting member (1) is connected to a gear rod (2), a self-locking module (3) is connected between the gear rod (2) and the machine body gear connecting member (1), and the self-locking module (3) comprises a travelling plate (31), a connecting notch (32), an iron plate (33) and an electromagnet (34), the travelling plate (31) is slidably matched with the top of the machine body gear connecting member (1), the connecting notch (32) is arranged at the top of the travelling plate (31), and the bottom end of the connecting notch (32) passes through the travelling plate (31), the iron plate (33) is symmetrically connected to the tops of both sides of the machine body gear connecting member (1) front and back, the electromagnet (34) is arranged on the side of the iron plate (33) opposite to the machine body gear connecting member (1), and the top of the gear rod (2) is connected to an end rod (4), a safety operation module (5) is provided on the end rod (4), and the safety operation module (5) comprises an unlocking cylinder (51), a primary equipment notch (52), a primary contact switch (53), an unlocking arc plate (54) and a primary return spring (55), the unlocking cylinder (51) is sleeved on the outer side of the end rod (4), the primary equipment notch (52) is opened in the end rod (4), the primary contact switch (53) is embedded in the primary equipment notch (52), the unlocking arc plate (54) is symmetrically arranged on both sides of the unlocking cylinder (51), the primary return spring (55) is symmetrically connected to the inner wall of the unlocking arc plate (54) in an upper and lower manner, and one end of the primary return spring (55) away from the unlocking arc plate (54) is connected to the unlocking cylinder (51).

2. A gear locking safety device for a micro-tillage machine according to claim 1, characterized in that: The self-locking module (3) further comprises a trigger ring (35), a sliding plate (36) and an installation notch (37); the trigger ring (35) is arranged above the accompanying plate (31); the top end of the gear lever (2) passes through the communicating notch (32) and the trigger ring (35) in sequence; the inner wall of the trigger ring (35) is connected to the gear lever (2); a gap is left between the bottom surface of the trigger ring (35) and the accompanying plate (31); the sliding plate (36) is symmetrically connected to the bottom of the accompanying plate (31) in a front-to-back manner; the two groups of iron plates (33) are located between the two groups of sliding plates (36); the sliding plate (36) and the iron plate (33) are slidably matched; the installation notch (37) is arranged on a side of the sliding plate (36) opposite to the iron plate (33); and the electromagnet (34) is embedded in the installation notch (37).

3. The gear locking safety device for a micro-tillage machine according to claim 1, characterized in that: The self-locking module (3) also includes a matching plate (38), a secondary device slot (39), a secondary contact switch (310) and an assembly plate (311). The matching plate (38) is symmetrically arranged on the top of the machine body gear position connecting member (1), and the matching plate (38) is provided with four groups. The secondary device slot (39) is arranged on the opposite side of the two corresponding groups of matching plates (38) on the left and right. The secondary contact switch (310) is embedded in the secondary device slot (39). The assembly plate (311) is connected to the bottom of the opposite side of the two corresponding groups of matching plates (38) on the left and right, and the assembly plate (311) is connected to the machine body gear position connecting member (1) through a positioning bolt.

4. The gear locking safety device for a micro-tillage machine according to claim 1, characterized in that: The self-locking module (3) further comprises a blocking plate (312) and a stabilizing plate (313); the blocking plate (312) is symmetrically connected to the bottom of the iron plate (33) on the left and right, and the blocking plate (312) is connected to the machine body gear position connecting member (1); the stabilizing plate (313) is arranged between two groups of corresponding blocking plates (312) on the left and right, and the stabilizing plate (313) is connected to the sliding plate (36); and the top surface of the stabilizing plate (313) is slidably matched with the iron plate (33).

5. The gear locking safety device for a micro-tillage machine according to claim 1, characterized in that: The safety operation module (5) also includes a circular notch (56), a secondary return spring (57), a top plate (58) and a push rod (59); the circular notch (56) is arranged in the middle of the top of the end rod (4), and the bottom end of the circular notch (56) is connected to the first-level equipment notch (52); the second-level return spring (57) and the push rod (59) are both arranged in the circular notch (56); the bottom end of the second-level return spring (57) is connected to the end rod (4); the push rod (59) is arranged in the second-level return spring (57), and the push rod (59) is located above the first-level contact switch (53); the top plate (58) is connected to the top of the unlocking cylinder (51); the top end of the second-level return spring (57) passes through the circular notch (56) and is connected to the top plate (58); the top end of the push rod (59) passes through the circular notch (56) and is connected to the middle of the bottom surface of the top plate (58); The bottom end of the unlocking cylinder (51) is connected to a limiting plate (510) in a circumferential array, and the limiting plate (510) is located below the end rod (4).

6. A gear locking safety device for a micro-tillage machine according to claim 5, characterized in that: The safety operation module (5) further comprises a primary block (511), a secondary block (512) and a tertiary block (513); the primary block (511) is symmetrically connected to the top two sides of the top plate (58), and the bottom surface of the primary block (511) is slidably engaged with the unlocking arc plate (54); the secondary block (512) is symmetrically arranged at the bottom of the two sides of the unlocking arc plate (54), and the unlocking arc plate (54) is slidably engaged between two groups of secondary blocks (512) corresponding to each other in the front and back; one end of the secondary block (512) is connected to the outer wall of the unlocking cylinder (51); the tertiary block (513) is symmetrically connected to the bottom two sides of the unlocking cylinder (51), and the top surface of the tertiary block (513) is slidably engaged with the unlocking arc plate (54).

7. The gear locking safety device for a micro-tillage machine according to claim 1, characterized in that: The safety operation module (5) further comprises a vertical plate (514) and a linkage plate (515), wherein the vertical plate (514) is provided with two groups, and the vertical plate (514) is respectively connected to the front end of the bottom of the unlocking arc plate (54) located on the left side and the rear end of the bottom of the unlocking arc plate (54) located on the right side, the linkage plate (515) is connected to the bottom of the vertical plate (514), and a gap is left between the linkage plate (515) and the gear lever (2), and the linkage plate (515) is in an L-shaped structure.

8. The gear locking safety device for a micro-tillage machine according to claim 7, characterized in that: The safety operation module (5) further comprises an anti-skid arc plate (516), which is symmetrically arranged on both sides of the gear lever (2), the anti-skid arc plate (516) located on the left side is connected to the linkage plate (515) located on the rear side, and the anti-skid arc plate (516) located on the right side is connected to the linkage plate (515) located on the front side, and the inner wall of the anti-skid arc plate (516) is in contact with the outer wall of the gear lever (2).

Images