Reversing mechanism and right-angle reversing box ditch self-leveling type line pressing hole soil preparation machine

Abstract

The invention relates to a reversing mechanism which comprises a supporting base, a main linear lifting unit, a central vertical shaft, a fixed gear and a reversing assembly. The main linear lifting unit is arranged on the supporting base; the central vertical shaft is fixedly arranged on the supporting base; the fixed gear is arranged on the central vertical shaft; the reversing assembly is used for being connected with a vehicle, the reversing assembly is connected to the main linear lifting unit, and a rotating gear matched with the fixed gear is arranged in the reversing assembly; the main linear lifting unit can drive the reversing assembly to ascend and descend so that the rotating gear can be meshed with the fixed gear. The rotating gear can rotate around the fixed gear in the circumferential direction so as to drive the reversing assembly to reverse. Meanwhile, the invention further provides a right-angle reversing box ditch self-leveling type line pressing hole soil preparation machine. Compared with the prior art, the reversing mechanism can achieve in-situ steering of the vehicle, and the right-angle reversing box ditch self-leveling type line pressing hole soil preparation machine can make full use of the specification box ditch ridge soil preparation of the land area.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle reversing, in particular to a reversing mechanism and a right-angle reversing box-ditch self-leveling hole-pressing ground leveling machine. Background Art

[0002] Vehicles are common means of transportation used on land. According to the application scenarios, vehicles can be divided into different types, such as passenger vehicles, agricultural vehicles, etc. Different types of vehicles can meet people's different usage needs and facilitate people's production and life.

[0003] Conventional vehicles currently use wheeled transmissions, with some also employing other transmission methods, such as tracked structures, to achieve propulsion. Currently, steering is typically accomplished by wheeled steering, with the driver turning the steering wheel to rotate the front wheels to a certain angle. However, this steering method's steering angle and turning radius are affected by factors such as the vehicle's wheelbase and track width. The turning radius is typically large, presenting limitations that hinder the use of certain functional vehicles and can even render steering impossible in confined areas.

[0004] For example, existing passenger vehicles usually rely on the front wheels for steering. When encountering traffic congestion or other situations, if they need to turn to change lanes or make a U-turn, they need a certain amount of space around the passenger vehicle to achieve the steering, which is very inconvenient.

[0005] A soil preparation machine is an agricultural vehicle that can simultaneously perform multiple tasks, including rotary tillage, deep loosening, ridging, and (compacting) leveling, with high efficiency. When operating in the field, a soil preparation machine typically moves back and forth across the field, requiring large turns to complete the round-trip operation. However, existing soil preparation machines rely on wheels for steering, resulting in a large turning radius. This can damage the prepared field during turns, making steering difficult. Summary of the Invention

[0006] The vehicles in the prior art use wheels to achieve steering, which has a large steering radius and is inconvenient to turn. The present invention provides a technical problem of limitations in some usage scenarios. It can lift the entire vehicle off the ground and drive the vehicle to rotate, achieving on-the-spot steering. The steering is more flexible and convenient, and can better meet the steering needs of different vehicle usage scenarios.

[0007] A reversing mechanism comprises a supporting base, a main linear lifting unit, a central vertical shaft, a fixed gear and a reversing assembly; The main linear lifting unit is arranged on the supporting base; The central vertical shaft is fixedly arranged on the support base; The fixed gear is arranged on the central vertical shaft; The reversing assembly is used to connect with the vehicle, and the reversing assembly is connected to the main linear lifting unit, and the reversing assembly is provided with a rotating gear matching the fixed gear; The main linear lifting unit can drive the reversing assembly to move up and down so that the rotating gear is engaged with the fixed gear; the rotating gear can rotate circumferentially around the fixed gear to drive the reversing assembly to reverse.

[0008] Preferably, the central vertical axis is coaxially and parallelly arranged with the main linear lifting unit; The main linear lifting unit includes a lifting cylinder body and a hollow tubular plunger disposed in the lifting cylinder body; The central vertical shaft is inserted into the central through hole of the tubular plunger, and the bottom of the central vertical shaft is connected to the support base, and the fixed gear is arranged on the upper end of the central vertical shaft; The reversing assembly is connected to the tubular plunger.

[0009] Preferably, it further comprises a support seat lifting sub-linear lifting unit, and the support seat lifting sub-linear lifting unit is connected to the support base and the vehicle respectively.

[0010] Preferably, the support seat lifting sub-linear lifting unit is connected to the support base through a turntable, and the turntable is rotatably connected to the support base.

[0011] Preferably, it also includes a connecting frame plate, upper and lower vertical sliding rods and a horizontal connecting rod; The connecting frame plate is arranged outside the main linear lifting unit; The upper and lower vertical sliding rods are arranged parallel to the central vertical axis; The two ends of the horizontal connecting rod are respectively connected to the connecting frame plate and the upper and lower vertical sliding rods; A vertical guide opening sliding sleeve is provided on the vehicle, and the upper and lower vertical sliding rods are slidably provided in the vertical guide opening sliding sleeve.

[0012] Preferably, a mounting through hole is provided on the connecting frame plate, and the supporting seat lifting sub-linear lifting unit is movably installed in the mounting through hole provided on the connecting frame plate.

[0013] Preferably, a first position detection sensor is provided on the vehicle, and a top plate is provided on the transverse connecting rod, and the top plate is provided corresponding to the first position detection sensor; The first position detection sensor is used to detect the position of the top plate to control the operating state of the support base lifting sub-linear lifting unit.

[0014] Preferably, the support base is provided with an angle correction positioning rod; The vehicle is provided with an angle correction positioning plate, which is provided with a positioning groove matching the angle correction positioning rod, and the end of the angle correction positioning plate is provided with a guide opening connected to the positioning groove, and the guide opening faces the angle correction positioning rod, and the guide opening is used to guide and correct the position of the angle correction positioning rod.

[0015] Preferably, it further comprises a positioning and fixing flange, wherein the positioning and fixing flange is fixedly arranged on the central vertical shaft and is located on the upper side of the fixed gear; The vehicle is provided with a second position detection sensor assembly, the second position detection sensor assembly comprising a second position detection sensor and an elastic pressing piece provided on the top of the second position detection sensor; The positioning and fixing flange is arranged corresponding to the second position detection sensor. An extrusion portion is arranged on the top of the positioning and fixing flange. The extrusion portion is used to press down the elastic pressing piece so that the elastic pressing piece squeezes the second position detection sensor to control the operating state of the main linear lifting unit.

[0016] Preferably, a circular protrusion that can jump is provided outwardly on the circumferential surface of the positioning and fixing flange, and the circular protrusion is used to push out the second position detection sensor component to separate the elastic pressing piece from the extrusion part; Furthermore, the circular protrusion is also used to control the clutch and disconnection of the power source of the rotating gear.

[0017] Preferably, the reversing assembly further includes a first drive shaft and a bevel gear assembly; The first drive shaft is connected to the rotating gear, and a first bevel gear is provided on the first drive shaft; The bevel gear assembly is provided with a second drive shaft, a second bevel gear, and a third bevel gear, and the second bevel gear and the third bevel gear are respectively engaged with the first bevel gear; the second bevel gear and the third bevel gear are respectively provided at both ends of the second drive shaft, and the ends of both ends of the second drive shaft are respectively provided with a clutch structure; The vehicle is provided with a power input shaft and a linked dual-control clutch mechanism; The power input shafts are respectively provided on the outer sides of the ends of both ends of the second drive shaft, and a clutch pawl matching the clutch structure is provided at the end of each power input shaft; The linked dual-control clutch mechanism is connected to the two power input shafts to drive the power input shafts to move so as to control the clutch pawl and the clutch structure.

[0018] Preferably, the linked dual-control clutch mechanism is a vertical oblique sliding structure, and the linked dual-control clutch mechanism includes a handle, a fork push rod, a first fork and a second fork; One end of the shift fork push rod is fixedly connected to a slide rod in a reversing groove provided at the lower part of the handle, and the reversing groove is arranged to be inclined relative to the axis of the shift fork push rod; The first shift fork and the second shift fork are respectively arranged on the shift fork push rod, and the first shift fork is connected to one of the power input shafts, and the second shift fork is connected to the other power input shaft; When the handle slides up and down, the slide rod slides along the reversing groove to drive the shift fork push rod to move left and right along its axis to drive the power input shaft to move to control the clutch pawl and the clutch structure.

[0019] A right-angle reversing box-ditch self-leveling hole-pressing land leveling machine, comprising a land leveling machine body and a reversing mechanism as described above, wherein the reversing mechanism is provided on the land leveling machine body, and the reversing assembly is connected to the land leveling machine body; The main body of the land preparation machine is also provided with a rotary tillage mechanism, a ditching mechanism, a leveling mechanism and a hole pressing mechanism.

[0020] Preferably, the rotary tillage mechanism, the leveling mechanism, and the hole pressing mechanism are sequentially arranged at the front, middle, and rear parts of the bottom surface of the land preparation machine body, and the grooving mechanism is arranged at the bottom of the middle parts of both sides of the land preparation machine body.

[0021] Preferably, the rotary tillage mechanism includes a rotary tillage shaft and a furrow and ridge rotary tillage wheel and a bed surface rotary tillage wheel provided on the rotary tillage shaft, wherein the diameter of the furrow and ridge rotary tillage wheel is larger than the diameter of the bed surface rotary tillage wheel; The furrowing mechanism is located at the rear side of the furrow and ridge rotary tilling wheel.

[0022] Preferably, there are two grooving mechanisms, and both of the grooving mechanisms are groove-reverse scoop-shaped structures, the end face of the small end of the grooving mechanism is closed, and the large end of the grooving mechanism is open; the closed end of the small end of each grooving mechanism is hinged on the bottom of both sides of the land leveling machine body, and the grooving mechanisms are obliquely arranged at the bottom of both sides of the land leveling machine body; a waist-shaped positioning groove is provided on one side wall of the large end of the grooving mechanism, and a screw passes through the waist-shaped positioning groove to install the grooving mechanism on the land leveling machine body, and the waist-shaped positioning groove is arranged in the vertical direction; a notch is provided on one side wall of the closed end of each groove, and the notch matches the position of the leveling mechanism.

[0023] Preferably, the leveling mechanism is a pair of opposing spiral flat wheels, and the diameters of the spiral wheels at both ends of the pair of opposing spiral flat wheels are consistent.

[0024] Preferably, the acupoint pressing mechanism includes an acupoint pressing shaft and an acupoint pressing assembly; There are multiple acupuncture point pressing components, and the multiple acupuncture point pressing components are sequentially arranged on the acupuncture point pressing shaft along the axial direction of the acupuncture point pressing shaft; The acupressure assembly includes a acupressure wheel and a acupressure head. The acupressure wheel is arranged on the acupressure shaft, and the position between adjacent acupressure wheels is adjustable. A plurality of acupressure heads are sequentially arranged on the outer circumference of each acupressure wheel, and the radial position of the acupressure heads on the same acupressure wheel is adjustable.

[0025] Preferably, the main body of the land leveling machine is further provided with a guide double-acting operating mechanism, and the guide double-acting operating mechanism is located at the front part of the main body of the land leveling machine; A guide wheel is provided at the bottom of the guide double-acting operating mechanism, and a guide wheel lifting unit for controlling the lifting of the guide wheel is also provided in the guide double-acting operating mechanism.

[0026] Preferably, the main body of the land leveling machine is further provided with a driving wheel clutch mechanism and a hydraulic transmission shaft clutch mechanism; The driving wheel clutch mechanism is used to control the clutch of the driving wheel; The hydraulic transmission shaft clutch mechanism is used to control the clutch of the hydraulic transmission shaft; The driving wheel clutch mechanism and the hydraulic transmission shaft clutch mechanism both adopt a vertical oblique sliding structure.

[0027] Compared with the prior art, the present invention provides a reversing mechanism, which includes a supporting base, a main linear lifting unit, a central vertical shaft, a fixed gear and a reversing assembly; the main linear lifting unit is arranged on the supporting base; the central vertical shaft is fixedly arranged on the supporting base; the fixed gear is arranged on the central vertical shaft; the reversing assembly is used to connect with the vehicle, and the reversing assembly is connected to the main linear lifting unit, and a rotating gear matching the fixed gear is provided in the reversing assembly; the main linear lifting unit can drive the reversing assembly to rise and fall so that the rotating gear engages with the fixed gear; the rotating gear can rotate circumferentially around the fixed gear to drive the reversing assembly to reverse. The reversing mechanism is provided with the main linear lifting unit and the reversing assembly. The main linear lifting unit can drive the reversing assembly to be lifted and lowered, and the reversing assembly is used to be connected to the vehicle, so that the main linear lifting unit can drive the entire vehicle to be lifted and lowered, so that the vehicle leaves the ground, and the rotating gear in the reversing assembly can rotate circumferentially around the fixed gear, thereby synchronously driving the vehicle to rotate, realizing on-the-spot steering of the vehicle, and making steering more flexible and convenient, which can better meet the steering needs of the vehicle in different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 A schematic diagram of the three-dimensional structure of a reversing mechanism provided in an embodiment; Figure 2 A schematic cross-sectional view of a reversing mechanism provided in one embodiment; Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of some components of the reversing mechanism shown; Figure 4 for Figure 3 A schematic cross-sectional view of the structure shown; Figure 5 Schematic diagram of the structure of a fixed gear and a positioning fixed flange applied to a vehicle in one embodiment ( Figure 13 A partial enlarged view of area A shown); Figure 6 A schematic diagram of the three-dimensional structure of a positioning and fixing flange provided in an embodiment; Figure 7A schematic diagram of the three-dimensional structure of a push rod, a push plate, and a second position detection sensor assembly provided in one embodiment; Figure 8 A schematic structural diagram of a reversing assembly, a linked dual-control clutch mechanism, and other components provided in one embodiment; Figure 9 A schematic structural diagram of components including a connecting frame plate, a horizontal connecting rod, a top plate, and a first position detection sensor provided in one embodiment; Figure 10 A top view of a connecting frame plate and a horizontal connecting rod provided in one embodiment; Figure 11 A schematic diagram of the three-dimensional structure of a support base provided in one embodiment; Figure 12 A schematic diagram of the planar structure of an angle correction positioning plate provided in an embodiment; Figure 13 A schematic diagram of the three-dimensional structure of a soil preparation machine provided in an embodiment; Figure 14 for Figure 13 The structure diagram of the land leveling machine when the main body is raised is shown; Figure 15 for Figure 13 The schematic diagram of the structure of some mechanisms in the soil preparation machine shown; Figure 16 for Figure 13 A schematic diagram of the three-dimensional structure of the guiding double-acting operating mechanism in the soil preparation machine shown; Figure 17 for Figure 13 The structural diagram of the solenoid valve and hydraulic transmission shaft in the soil preparation machine shown; Figure 18 for Figure 13 The electrical schematic diagram in the soil preparation machine shown; Figure 19 for Figure 13 The electrical schematic diagram in the soil preparation machine shown; Figure 20 for Figure 13 The hydraulic principle diagram of the soil preparation machine shown; Description of reference numerals: Right-angle reversing box trench self-leveling pressure hole leveling machine 1000; Land leveling machine body 10, shaped frame fixed plate 11, vertical guide opening sliding sleeve 12, first position detection sensor 13, angle correction positioning plate 14, positioning slot 141, guide opening 142, second position detection sensor assembly 15, second position detection sensor 151, elastic pressing piece 152, push rod 16, push plate 161, dual-control clutch 17, power input shaft 18, clutch pawl 181, integrated circuit control panel 19; Reversing mechanism 20, support base 21, turntable 211, angle correction positioning rod 212, support leg 213, main linear lift unit 22, lifting cylinder body 221, tubular plunger 222, central vertical shaft 23, fixed gear 24, reversing assembly 25, rotating gear 251, first drive shaft 252, first bevel gear 2521, bevel gear assembly 253, second bevel gear 2531, third bevel gear 2532, clutch structure 2533, second drive shaft 2534, support base lifting secondary linear lift unit 26, connecting frame plate 27, upper and lower vertical sliding rods 271, horizontal connecting rod 272, mounting through hole 2701, top plate 273, positioning and fixing flange 28, extrusion portion 281, and round protrusion 282; Linked dual-control clutch mechanism 30, handle 31, reversing groove 311, slide rod 312, shift fork push rod 32, first shift fork 33, second shift fork 34; Rotary tillage mechanism 40, rotary tillage shaft 41, furrow and ridge rotary tillage wheel 42, and bed rotary tillage wheel 43; Grooving mechanism 50; Leveling mechanism 60; Acupoint pressing mechanism 70, acupoint pressing shaft 71, acupoint pressing assembly 72, acupoint pressing wheel 721, and acupoint pressing head 722; Guide double-acting operating mechanism 80, guide wheel 81, guide wheel lifting unit 82, cylinder sleeve mechanism assembly 83; Drive wheel clutch mechanism 91; Hydraulic transmission shaft clutch mechanism 92, control handle 921 of the hydraulic transmission shaft clutch mechanism, hydraulic transmission shaft 922; Control handle 93 of the rotary tillage mechanism; Diesel engine acceleration and deceleration control handle 110. DETAILED DESCRIPTION

[0030] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0031] It should be noted that when a component is referred to as being “fixed on”, “mounted on” or “set on” another component, it can be directly on the other component or indirectly set on the other component; when a component is “connected” to another component, or a component is referred to as being “connected to” another component, it can be directly connected to the other component or indirectly connected to the other component.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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 therefore cannot be understood as a limitation on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0035] The present invention provides a reversing mechanism, which includes a supporting base, a main linear lifting unit, a central vertical shaft, a fixed gear and a reversing assembly; the main linear lifting unit is arranged on the supporting base; the central vertical shaft is fixedly arranged on the supporting base; the fixed gear is arranged on the central vertical shaft; the reversing assembly is used to connect with the vehicle, and the reversing assembly is connected to the main linear lifting unit, and a rotating gear matching the fixed gear is provided in the reversing assembly; the main linear lifting unit can drive the reversing assembly to rise and fall so that the rotating gear engages with the fixed gear; the rotating gear can rotate circumferentially around the fixed gear to drive the reversing assembly to reverse. The reversing mechanism is provided with the main linear lifting unit and the reversing assembly. The main linear lifting unit can drive the reversing assembly to be lifted and lowered, and the reversing assembly is used to be connected to the vehicle, so that the main linear lifting unit can drive the entire vehicle to be lifted and lowered, so that the vehicle leaves the ground, and the rotating gear in the reversing assembly can rotate circumferentially around the fixed gear, thereby synchronously driving the vehicle to rotate, realizing on-the-spot steering of the vehicle, and making steering more flexible and convenient, which can better meet the steering needs of the vehicle in different usage scenarios.

[0036] Please refer to Figure 1 and Figure 2 In one embodiment, a reversing mechanism 20 is provided to solve the problem that the vehicle in the prior art has a large turning radius when turning, is very inconvenient to operate, and has limitations in some application scenarios.

[0037] The reversing mechanism 20 includes a support base 21, a main linear lift unit 22, a central vertical shaft 23, a fixed gear 24, and a reversing assembly 25. The main linear lift unit 22 is mounted on the support base 21, the central vertical shaft 23 is fixedly mounted on the support base 21, and the fixed gear 24 is mounted on the central vertical shaft 23. The reversing assembly 25 is connected to the vehicle and is connected to the main linear lift unit 22. The reversing assembly 25 includes a rotating gear 251 that mates with the fixed gear 24. The main linear lift unit 22 drives the reversing assembly 25 up and down, causing the rotating gear 251 to mesh with the fixed gear 24. The rotating gear 251 rotates around the circumference of the fixed gear 24 to drive the reversing assembly 25 to reverse direction. In other words, the main linear lift unit 22 drives the reversing assembly 25 up and down, thereby changing the height of the rotating gear 251 and controlling the engagement or disengagement between the rotating gear 251 and the fixed gear 24. After the rotating gear 251 is engaged with the fixed gear 24, the rotating gear 251 is driven to rotate, thereby causing the rotating gear 251 to rotate around the circumference of the fixed gear 24, thereby driving the entire reversing assembly 25 to reverse direction, causing the reversing assembly 25 to reverse direction around the central vertical axis 23. Since the vehicle is connected to the reversing assembly 25, the reversing of the reversing assembly 25 will simultaneously drive the vehicle to turn, thereby achieving on-the-spot steering of the vehicle.

[0038] Specifically, in actual use, the support base 21 can be first brought into contact with the ground, and then the main linear lifting unit 22 can be used to drive the reversing assembly 25 to rise, thereby driving the vehicle to rise, so as to lift the vehicle off the ground; when the reversing assembly 25 is lifted to a certain height, the rotating gear 251 will engage with the fixed gear 24, and at this time the main linear lifting unit 22 stops running; then the rotating gear 251 is driven to rotate, so that the rotating gear 251 will move around the circumference of the fixed gear 24, thereby driving the vehicle to turn, and when the vehicle rotates to the desired direction, the rotating gear 251 stops rotating; then the main linear lifting unit 22 drives the reversing assembly 25 to descend, and the rotating gear 251 is separated from the fixed gear 24. When it descends to a certain height, the tires of the vehicle will contact the ground, realizing the vehicle's in-situ steering.

[0039] The power source for driving the rotating gear 251 to rotate may be provided on the vehicle.

[0040] It is understandable that vehicles in the prior art usually achieve vehicle steering by the driver turning the steering wheel to drive the front wheels to rotate a certain angle. The steering angle and turning radius of this steering method are affected by factors such as the vehicle's wheelbase and track. The turning radius is usually large and has limitations, which is not conducive to the use of some functional vehicles. The vehicle may even be unable to steer in some narrow areas.

[0041] For example, traffic congestion often occurs on the road. If you need to change lanes at this time, you need a certain amount of space around the vehicle to achieve the change of lanes or U-turn, which is very inconvenient. When a vehicle encounters an obstacle in front of it and cannot pass (for example, a tank encounters a ditch in front of it), it needs to turn around, which is very inconvenient and takes a lot of time; When working in the fields, a vehicle needs to turn from one side to the other at a large angle to facilitate round-trip operation. However, vehicles that rely on front wheels for steering have a large turning radius, which can damage the prepared fields during the turn. This makes steering inconvenient and affects agricultural efficiency and results.

[0042] The reversing mechanism 20 provided in this embodiment can lift the vehicle off the ground through the main linear lifting unit 22, thereby preventing wear on the vehicle during the steering process. Furthermore, the rotating gear 251 can rotate around the fixed gear 24 to achieve precise steering and ensure steering accuracy.

[0043] Specifically, in one embodiment, the reversing mechanism 20 is used on an agricultural vehicle, particularly an agricultural vehicle used for field operations. When the agricultural vehicle needs to turn from one side to the other, the reversing mechanism 20 can be used to perform the turn in place before continuing to operate. The turning process will not damage the prepared field, making turning simpler and more convenient, thereby improving agricultural operation efficiency and results.

[0044] Of course, in other embodiments, the reversing mechanism 20 can also be applied to other types of vehicles, such as passenger vehicles and tanks, as needed. The application of the reversing mechanism 20 can greatly facilitate the steering and passage of various vehicles. When a passenger vehicle encounters a traffic jam, the reversing mechanism 20 can be used to lift the passenger vehicle off the ground to a certain height, allowing it to turn on the spot and either drive back or change lanes. When a tank encounters an insurmountable obstacle such as a ditch, the reversing mechanism 20 can also be used to lift the tank off the ground to a certain height, allowing it to turn on the spot and either return or change lanes.

[0045] Preferably, in one embodiment, the central shaft 23 is coaxially arranged parallel to the main linear lift unit 22. The main linear lift unit 22 includes a lifting cylinder body 221 and a hollow tubular plunger 222 disposed within the lifting cylinder body 221. The central shaft 23 is inserted through the central through-hole of the tubular plunger 222, and the bottom of the central shaft 23 is fixedly connected to the support base 21. The fixed gear 24 is disposed at the upper end of the central shaft 23. The reversing assembly 25 is connected to the tubular plunger 222. In other words, in this embodiment, the main linear lift unit 22 utilizes a hollow plunger hydraulic cylinder structure, with the central shaft 23 inserted through the central through-hole of the main linear lift unit 22. By using a hydraulic cylinder for linear lift, the structure provides greater load-bearing capacity, enables more stable vehicle lifting, and facilitates subsequent maintenance. The use of a hollow plunger hydraulic cylinder also facilitates more stable vehicle steering. The central vertical shaft 23 and the support base 21 are mainly used to support the entire vehicle during the steering process, supporting the entire vehicle to slide and lift up and down and to rotate around the central axis.

[0046] Specifically, the hydraulic pipelines, control elements and other components in the hydraulic system of the main linear lifting unit 22 can all be set on the vehicle.

[0047] Preferably, in one embodiment, a sealing structure is provided between the outer circumference of the tubular plunger 222 and the inner circumference of the lifting cylinder body 221 , and the inner circumference of the tubular plunger 222 is provided with a sealing structure in airtight contact with the outer circumference of the central vertical shaft 23 .

[0048] Please refer to Figures 3 to 7Preferably, in one embodiment, the reversing mechanism 20 further includes a positioning and fixing flange 28, which is fixedly mounted on the central vertical shaft 23 and located on the upper side of the fixed gear 24. A second position detection sensor assembly 15 is provided on the vehicle, and the second position detection sensor assembly 15 includes a second position detection sensor 151 and an elastic pressing piece 152 disposed on the top of the second position detection sensor 151. The positioning and fixing flange 28 is disposed corresponding to the second position detection sensor 15, and a pressing portion 281 is disposed on the top of the positioning and fixing flange 28. The pressing portion 281 is used to press down the elastic pressing piece 152 so that the elastic pressing piece 152 presses the second position detection sensor 151 to control the operating state of the main linear lifting unit 22. Through the cooperation between the positioning and fixing flange 28 and the second position detection sensor assembly 15, precise control of the operating stroke of the main linear lifting unit 22 can be achieved. When the main linear lift unit 22 lifts the vehicle, the second position detection sensor assembly 15 simultaneously rises. When it reaches a certain height, the pressing portion 281 contacts and presses the elastic pressing piece 152 downward, causing the elastic pressing piece 152 to press against the contact point of the second position sensor 151, indicating that the vehicle has reached the desired height. At this point, the main linear lift unit 22 must be controlled to stop and maintain its position. In other words, the second position detection sensor 151 is a sensor used for position detection. By compressing the second position detection sensor 151 with the elastic pressing piece 152, a corresponding signal is fed back from the second position detection sensor 151, controlling the main linear lift unit 22 and ensuring precise operation. The second position detection sensor 151 can be electrically connected to a DC device on the vehicle.

[0049] Specifically, in one embodiment, when the main linear lift unit 22 utilizes a hydraulic cylinder, the second position detection sensor 151 may be a travel switch. When the extrusion portion 281 depresses the elastic pressure plate 152, the elastic pressure plate 152 correspondingly depresses the contact of the second position detection sensor 151, thereby shutting down and de-energizing the second position detection sensor 151. This de-energizes the second solenoid valve in the hydraulic system, maintaining hydraulic pressure and maintaining the vehicle's height. This allows for precise control of vehicle lifting and better ensures meshing between the two gears.

[0050] Preferably, in one embodiment, a circular protrusion 282 is provided on the circumferential surface of the positioning and fixing flange 28 to protrude outward, and the circular protrusion 282 is used to push the second position detection sensor assembly 15 outward to separate the elastic pressing piece 152 from the extrusion portion 281. That is to say, outwardly protruding circular protrusions 282 are provided in some areas of the circumferential surface of the positioning and fixing flange 28. Since the positioning and fixing flange 28 is fixed on the central vertical shaft 23, and the second position detection sensor assembly 15 is provided on the vehicle, the second position detection sensor assembly 15 will move around the circumferential surface of the positioning and fixing flange 28 during the steering of the vehicle. When it moves to the position of the circular protrusion 282, the circular protrusion 282 will push the second position detection sensor assembly 15 outward, so that the elastic pressing piece 152 is separated from the extrusion portion 281, thereby causing the contact of the second position detection sensor 151 to pop up, and the second position detection sensor 151 is turned on and energized, so that the solenoid valve in the hydraulic system opens to release pressure, and under the action of the vehicle's gravity, the vehicle will gradually descend until it touches the ground.

[0051] Specifically, in one embodiment, the circular protrusion 282 is a movable circular protrusion, that is, the circular protrusion 282 is not completely fixed, but can jump along the height direction, so that when the vehicle rises, the circular protrusion 282 can be pushed upward, and the circular protrusion 282 will not interfere with the normal rise of the vehicle.

[0052] More specifically, in one embodiment, four movable circular protrusions 282 are provided on the positioning and fixing flange 28, and the four circular protrusions 282 are evenly distributed on the circumferential surface of the positioning and fixing flange 28, and the angle between two adjacent circular protrusions 282 is 90°, thereby realizing right-angle steering control of the vehicle.

[0053] It is understood that if the rotating gear 251 continues to rotate after the vehicle begins to descend, it can pose a safety risk and easily damage the component structure. Preferably, in one embodiment, the circular protrusion 282 is also used to control the clutching and disconnection of the power source of the rotating gear 251. In other words, a clutch is provided in the power transmission path between the power source of the rotating gear 251 and the rotating gear 251, and the circular protrusion 282 can also control the disconnection of the clutch, depriving the rotating gear 251 of its power source. Therefore, when the second position detection sensor assembly 15 rotates to the position of the circular protrusion 282, the circular protrusion 282 pushes the second position detection sensor assembly 15 outward, causing the elastic pressing plate 152 to spring up, energizing the second position detection sensor 151, opening the solenoid valve in the hydraulic system to release pressure, and the vehicle begins to descend. Simultaneously, the power transmission path of the rotating gear 251 is disconnected, and the rotating gear 251 stops rotating.

[0054] That is to say, in this embodiment, the vehicle's rotation angle can be precisely controlled through the coordination between mechanical structures. The overall structure is simple, and the operation is stable and reliable.

[0055] Specifically, in one embodiment, the second position detection sensor assembly 15 is arranged on a push rod 16, and a push plate 161 is provided at the tail end of the push rod 16. The push plate 161 is connected to the dual-control clutch 17, and the dual-control clutch 17 is located on the power transmission path between the rotational power source of the rotating gear 251 and the rotating gear 251. During the steering process of the vehicle, the head end of the push rod 16 contacts the circumferential surface of the positioning and fixing flange 28, and when it rotates to the position of the circular protrusion 282, the circular protrusion 282 squeezes the push rod 16 outward, thereby pushing the push rod 16 outward, causing the second position detection sensor assembly 15 to move outward synchronously, causing the elastic pressure plate 152 to pop up, the second position detection sensor 151 to be turned on and powered, and the vehicle begins to descend; at the same time, the outward moving push rod 16 will also push the push plate 161, thereby driving the dual-control clutch 17 to move through the push plate 161, causing the dual-control clutch 17 to disengage, thereby disconnecting the clutch of the power source of the rotating gear 251, and the rotating gear 251 no longer rotates.

[0056] Preferably, in one embodiment, a bearing may be provided at the front end of the push rod 16, and the bearing contacts the circumferential surface of the positioning and fixing flange 28 to achieve rolling friction, thereby better avoiding wear between components.

[0057] Please refer to Figure 8Preferably, in one embodiment, the reversing assembly 25 further includes a first drive shaft 252 and a bevel gear assembly 253. The first drive shaft 252 is connected to the rotating gear 251, and the first bevel gear 2521 is provided on the first drive shaft 252. The bevel gear assembly 253 is provided with a second drive shaft 2534, a second bevel gear 2531, and a third bevel gear 2532. The second bevel gear 2531 and the third bevel gear 2532 are respectively engaged with the first bevel gear 2521. The second bevel gear 2531 and the third bevel gear 2532 are respectively provided at both ends of the second drive shaft 2534, and a clutch structure 2533 is respectively provided at the ends of both ends of the second drive shaft 2534. The vehicle is provided with a power input shaft 18 and a linked dual-control clutch mechanism 30. The power input shaft 18 is respectively provided on the outer side of the ends of both ends of the second drive shaft 2534, and each end of the power input shaft 18 is provided with a clutch pawl 181 that matches the clutch structure 2533. The linked dual-control clutch mechanism 30 is connected to the two power input shafts 18 to drive the power input shafts 18 to move and control the clutch pawl 181 and the clutch structure 2533. For example, Figure 8 As shown, when the linked dual-control clutch mechanism 30 drives the power input shaft 18 to move to the right, the clutch pawl 181 on the power input shaft 18 at the left end will engage with the clutch structure 2533 at the left end, so that power is input into the reversing assembly 25 through the power input shaft 18 at the left end, to drive the first drive shaft 252 to rotate, thereby driving the rotating gear 251 to rotate; when the linked dual-control clutch mechanism 30 drives the power input shaft 18 to move to the left, the clutch pawl 181 on the power input shaft 18 at the right end will engage with the clutch structure 2533 at the right end, so that power is input into the reversing assembly 25 through the power input shaft 18 at the right end, to drive the first drive shaft 252 to rotate, thereby driving the rotating gear 251 to rotate. The linked dual-control clutch mechanism 30 drives the power input shaft 18 to move in different directions, thereby changing the power input direction and driving the rotating gear 251 to rotate in different directions. For example, when the vehicle needs to turn left, the linked dual-control clutch mechanism 30 can drive the power input shaft 18 to move to one side, so that power is input from the power input shaft 18 at one end; when the vehicle needs to turn right, the linked dual-control clutch mechanism 30 can drive the power input shaft 18 to move to the other side, so that power is input from the power input shaft 18 at the other end.

[0058] Specifically, in one embodiment, the first drive shaft 252 is rotatably mounted on the vehicle's cam-shaped frame fixed plate 11. The bevel gear assembly 253 can also be rotatably mounted on the vehicle.

[0059] Preferably, in one embodiment, the linked dual-control clutch mechanism 30 is a vertical oblique sliding structure, and the linked dual-control clutch mechanism 30 includes a handle 31, a shift fork push rod 32, a first shift fork 33 and a second shift fork 34. One end of the shift fork push rod 32 is fixedly connected to the slide rod 312 in the reversing groove 311 provided at the lower part of the handle 31, and the reversing groove 311 and the axis of the shift fork push rod 32 are relatively inclined. Wherein, the linked dual-control clutch mechanism 30 is a vertical oblique sliding structure, which means that the tilted reversing groove 311 is used in the linked dual-control clutch mechanism 30, and the shift fork push rod 32 is driven axially by the slide rod 312. The first shift fork 33 and the second shift fork 34 are respectively provided on the shift fork push rod 32, and the first shift fork 33 is connected to one of the power input shafts 18, and the second shift fork 34 is connected to the other power input shaft 18. As Figure 8 As shown, when the handle 31 slides up and down, the slide rod 312 slides along the reversing groove 311, driving the shift fork push rod 32 to move left and right along its axis, thereby driving the power input shaft 18 to move and control the clutch pawl 181 and the clutch structure 2533. By adopting an axial clutch method with a vertical oblique sliding structure, the vehicle can be kept stable during the ascent process without axial swinging or shaking, thereby ensuring safe and reliable operation of the vehicle.

[0060] Specifically, in one embodiment, the shift fork push rod 32 is parallel to the power input shaft 18 and is slidably mounted on the vehicle, and the first shift fork 33 and the second shift fork 34 are fixed on the shift fork push rod 32 .

[0061] Specifically, in one embodiment, the reversing groove 311 and the axis of the shift fork push rod 32 form an angle of 28°.

[0062] Please continue reading Figure 1 and Figure 2Preferably, in one embodiment, the main linear lift unit 22 utilizes a single-acting hydraulic cylinder. Specifically, the lift cylinder body 221 has a hydraulic oil inlet and outlet at only one end. During operation, hydraulic oil enters the lift cylinder body 221, pushing the plunger out in one direction. Resetting requires external forces such as load gravity. Specifically, the hydraulic oil inlet and outlet are located at the bottom of the lift cylinder body 221. Using a single-acting hydraulic cylinder reduces the layout and sealing complexity of the main linear lift unit 22 and effectively adapts to the vehicle's directional control requirements. It is understood that using a double-acting hydraulic cylinder would require the addition of an outer sleeve, which would make sealing difficult. This means that an oil filling pipe would be required at the top of the cylinder, requiring oil to be filled through the outer sleeve. This design is suitable if only the plunger is required to move up and down along the cylinder body. However, this application requires the vehicle to rotate. After the tubular plunger 222 lifts the vehicle, the vehicle must also rotate. Therefore, using a double-acting hydraulic cylinder would increase the difficulty of layout and installation, and could even hinder the vehicle's normal rotation requirements.

[0063] Specifically, in one embodiment, the support base 21 is movably mounted on the bottom surface of the closed end of the lift cylinder body 221. The tubular plunger 222 is inserted into the inner cavity of the open end of the lift cylinder body 221. The cam-shaped frame fixing plate 11 provided on the vehicle is axially fixedly connected and circumferentially rotatably connected to the upper portion of the outer sleeve of the tubular plunger 222. The central vertical shaft 23 is installed in the central through hole of the tubular plunger 222. One end of the central vertical shaft 23 is fixedly connected to the center of the bottom surface of the support base 21, and the fixed gear 24 is mounted on the upper end of the central vertical shaft 23.

[0064] Please refer to Figures 1 to 7In one embodiment, when the vehicle needs to reverse direction through the reversing mechanism 20, the hydraulic system drives the tubular plunger 222 to move upward along the inner wall of the lifting cylinder body 221, driving the vehicle to rise off the ground. The first drive shaft 252 and the rotating gear 251 installed on the cam frame fixing plate 11 of the vehicle also move upward at the same time; until the fixed gear 24 at the upper end of the central vertical shaft 23 engages with the rotating gear 251 in the reversing assembly 25, and at the same time, the elastic pressing piece 152 is pressed down through the positioning fixing flange 28. The elastic pressing piece 152 presses down the contact of the second position detection sensor 151, causing the second position detection sensor 151 to be turned off and de-energized, closing the hydraulic solenoid valve to maintain hydraulic pressure; at the same time, the first drive shaft 252 is driven by the power source on the vehicle to drive the rotating gear 251 to rotate circumferentially around the fixed gear 24, and at the same time, the vehicle is driven to turn left or right to complete a set desired steering angle. After completing a steering angle, the second position detection sensor assembly 15 is ejected by the movable circular protrusion 282 on the positioning and fixing flange 28, causing the elastic pressure piece 152 to spring upward. Under the control of the electrical connection, the contacts of the second position detection sensor 151 spring upward, energizing the system. The hydraulic solenoid valve then opens to release pressure (simultaneously, power to the first drive shaft 252 is cut off). Under the force of the vehicle's gravity, the rotating gear 251 disengages from the fixed gear 24 at the upper end of the center shaft 23, and the vehicle, along with the first drive shaft 252 and other components mounted thereon, descends to the ground.

[0065] Please refer to Figure 1 and Figure 2 Preferably, in one embodiment, the reversing mechanism 20 further includes a support base lifting sub-linear lifting unit 26, which is connected to the support base 21 and the vehicle, respectively. The support base lifting sub-linear lifting unit 26 is mainly used to lift the support base 21 so that the support base 21 is off the ground, thereby preventing the support base 21 from obstructing the normal driving of the vehicle.

[0066] When the main linear lift unit 22 utilizes a single-acting hydraulic cylinder, after the vehicle completes steering, the main linear lift unit 22 no longer maintains pressure and can first descend under the vehicle's own gravity to press out the hydraulic oil in the lift cylinder body 221. However, once the vehicle descends to the ground, gravity can no longer press out the hydraulic oil in the lift cylinder body 221. At this point, the support base lift auxiliary linear lift unit 26 operates to provide power, lifting the support base 21 and pressurizing the hydraulic oil in the lift cylinder body 221.

[0067] Specifically, in one embodiment, the support base lifting sub-linear lifting unit 26 uses a double-acting hydraulic cylinder. Similarly, the hydraulic pipelines, control elements and other components in the hydraulic system of the support base lifting sub-linear lifting unit 26 can all be installed on the vehicle.

[0068] Specifically, in one embodiment, two support seat lifting sub-linear lifting units 26 are provided, and the two support seat lifting sub-linear lifting units 26 are located on both sides of the main linear lifting unit 22. Through the setting of the two support seat lifting sub-linear lifting units 26, the force can be made more stable and balanced during operation, thereby improving the stability of operation.

[0069] Preferably, in one embodiment, the support base lifting sub-linear lifting unit 26 is connected to the support base 21 via a turntable 211, and the turntable 211 is rotatably connected to the support base 21. Through this structure, the support base lifting sub-linear lifting unit 26 can rotate relative to the support base 21, which can prevent the support base lifting sub-linear lifting unit 26 from interfering with the vehicle's steering.

[0070] Furthermore, in one embodiment, the lower end of the support base lifting sub-linear lifting unit 26 is fixedly mounted on the turntable 211, and the plunger at the upper end of the support base lifting sub-linear lifting unit 26 is fixedly connected to the vehicle. Specifically, the support base lifting sub-linear lifting unit 26 is fixedly connected to a rotatable labyrinth seal circular flange on the upper circular plane of the lower circular disk of the support base 21. More specifically, in one embodiment, the plunger at the upper end of the support base lifting sub-linear lifting unit 26 is connected to the cam frame fixed plate 11.

[0071] Please refer to Figure 2 、 Figure 9 and Figure 10 Preferably, in one embodiment, the reversing mechanism 20 further includes a connecting frame plate 27, upper and lower vertical sliding rods 271, and a horizontal connecting rod 272. The connecting frame plate 27 is arranged outside the main linear lifting unit 22, and the upper and lower vertical sliding rods 271 are arranged parallel to the central vertical axis 23. The two ends of the horizontal connecting rod 272 are respectively connected to the connecting frame plate 27 and the upper and lower vertical sliding rods 271. A vertical guide opening sleeve 12 is provided on the vehicle, and the upper and lower vertical sliding rods 271 are slidably arranged in the vertical guide opening sleeve 12. Through this structure, guidance can be performed during the lifting process, making the lifting more stable.

[0072] In one embodiment, two of the upper and lower vertical sliding rods 271, the horizontal connecting rods 272, and the vertical guide opening sliding sleeves 12 are respectively provided, the two horizontal connecting rods 272 are connected to both sides of the connecting frame plate 27, and the two vertical guide opening sliding sleeves 12 are located in the position area on both sides of the connecting frame plate 27, and the horizontal connecting rods 272 are arranged in a one-to-one correspondence with the upper and lower vertical sliding rods 271, and the upper and lower vertical sliding rods 271 are arranged in a one-to-one correspondence with the vertical guide opening sliding sleeves 12.

[0073] Specifically, in one embodiment, one end of the horizontal connecting rod 272 is straight and movably connected to the upper and lower vertical sliding rods 271, and the other end of the horizontal connecting rod 272 is parallel and fixedly connected to the connecting frame plate of the fixed jacket, and the two side ends of the upper and lower vertical sliding rods 271 are located in the vertical guide opening sliding sleeve 12.

[0074] Specifically, in one embodiment, the outer circumference of the upper end of the lifting cylinder body 221 is tightly fitted with the fixed outer sleeve of the connecting frame plate 27, and the lower end of the lifting cylinder body 221 is rotatably connected to the upper end surface of the support base 21. More specifically, a circular groove is provided on the outer circumference of the lower end of the lifting cylinder body 221. The circular groove at the lower end of the lifting cylinder body 221 is buckled into two semicircular rings of the secret palace seal on the support base 21, thereby facilitating the rotation of the lifting cylinder body 221.

[0075] Preferably, in one embodiment, the connecting frame plate 27 is provided with a mounting hole 2701, and the supporting base lifting sub-linear lifting unit 26 is movably mounted in the mounting hole 2701 provided in the connecting frame plate 27, thereby better stabilizing the supporting base lifting sub-linear lifting unit 26. Specifically, the middle position of the two supporting base lifting sub-linear lifting units 26 is movably mounted in the mounting holes 2701 on both sides of the connecting frame plate 27.

[0076] Preferably, in one embodiment, a first position detection sensor 13 is provided on the vehicle, and a top plate 273 is provided on the cross-link 272, and the top plate 273 is provided corresponding to the first position detection sensor 13. The first position detection sensor 13 is used to detect the position of the top plate 273 to control the operating state of the support seat lifting secondary linear lifting unit 26. The first position detection sensor 13 is mainly used to detect the current position height of the top plate 273. Through the cooperation between the first position detection sensor 13 and the top plate 273, the operating stroke of the support seat lifting secondary linear lifting unit 26 is precisely controlled. When the support seat lifting secondary linear lifting unit 26 lifts the support base 21, the top plate 273 rises synchronously. When the top plate 273 contacts the first position detection sensor 13, it indicates that the height has been lifted to the required level. At this time, it is necessary to control the support seat lifting secondary linear lifting unit 26 to stop running and maintain the position. In other words, the first position detection sensor 13 is a sensor for detecting the position of the top plate 273. By detecting the position of the top plate 273 by the first position detection sensor 13, a corresponding signal is fed back by the first position detection sensor 13 to control the support base lifting secondary linear lifting unit 26, thereby achieving precise operation of the support base lifting secondary linear lifting unit 26 and achieving precise operation of raising the height of the support base 21. The first position detection sensor 13 can be electrically connected to a DC device on the vehicle.

[0077] Specifically, in one embodiment, when the support base lifting auxiliary linear lifting unit 26 utilizes a hydraulic cylinder, the first position detection sensor 13 is a travel switch. When the top plate 273 rises to a certain height, it compresses the contact of the first position detection sensor 13, thereby sending back a corresponding signal, shutting off the solenoid valve in the hydraulic system, thereby stopping the operation of the support base lifting auxiliary linear lifting unit 26 and stopping the rise of the support base 21, thereby achieving precise lifting control.

[0078] After the vehicle completes the turn and descends to the ground, the corresponding solenoid valve in the hydraulic system is opened, and the hydraulic pipeline connected to the upper end of the support seat lifting sub-linear lifting unit 26 is pressurized, thereby driving the support base 21 together with the horizontal connecting rod 272 and the top plate 273 to rise until the top plate 273 moves to the first position detection sensor 13. The first position detection sensor 13 feeds back a corresponding signal, and the support seat lifting sub-linear lifting unit 26 maintains pressure. At this time, the support base 21 is located in a position away from the ground, completing a vehicle lifting and steering movement.

[0079] Please refer to Figure 1 、 Figure 11and Figure 12 Preferably, in one embodiment, an angle correction positioning rod 212 is provided on the support base 21, and an angle correction positioning plate 14 is provided on the vehicle. A positioning groove 141 matching the angle correction positioning rod 212 is provided on the angle correction positioning plate 14, and a guide opening 142 connected to the positioning groove 141 is provided at the end of the angle correction positioning plate 14. The guide opening 142 faces the angle correction positioning rod 212, and the guide opening 142 is used to guide and correct the position of the angle correction positioning rod 212. It is understandable that in actual use, there may be deviations when the vehicle is turning, which will cause deviations during subsequent resetting, affecting subsequent use. The angle correction positioning rod 212 and the angle correction positioning plate 14 can correct the deviations during the resetting process to ensure the accuracy of right-angle steering. For example, when the vehicle has completed its rotation, during the resetting process, when the support seat lifting sub-linear lifting unit 26 drives the support base 21 to rise, the angle correction positioning rod 212 will rise synchronously. If there is a deviation, the angle correction positioning rod 212 will not be aligned with the positioning groove 141. In the process of rising, after the angle correction positioning rod 212 is inserted into the guide opening 142, it will be gradually corrected under the guidance of the groove wall of the guide opening 142, thereby improving the accuracy of right-angle steering, and the vehicle returns to its initial state.

[0080] Specifically, in one embodiment, the guide opening 142 is a “V”-shaped opening, so that the position of the angle correction positioning rod 212 can be better guided and corrected through the inclined groove walls on both sides.

[0081] Specifically, in one embodiment, the angle correction positioning plate 14 is disposed in the middle of the vehicle.

[0082] Specifically, in one embodiment, four angle correction positioning rods 212 are provided, and the four angle correction positioning rods 212 are evenly arranged on the support base 21, and the angle between two adjacent angle correction positioning rods 212 is 90°, so that correction can be achieved more accurately and conveniently.

[0083] Specifically, in one embodiment, the support base 21 is provided with a cross-shaped support frame, which has four legs 213 extending radially from the support base 21, with the angle between adjacent legs 213 being 90°. More specifically, the angle correction positioning rod 212 is vertically disposed on the legs 213.

[0084] It is understood that in some embodiments, the linear lifting unit used in the reversing mechanism 20 is a cylinder, which requires connection to corresponding hydraulic pipelines and a hydraulic system. Of course, in other embodiments, the linear lifting unit used in the reversing mechanism 20 can also adopt other structural forms, such as a pneumatic cylinder, an electric cylinder, etc., as long as it can meet the load and working conditions.

[0085] Please refer to 1 to Figure 20 At the same time, in one embodiment, a right-angle reversing box-ditch self-leveling hole-pressing land leveling machine 1000 is also provided, which includes a land leveling machine body 10 and the reversing mechanism 20. The reversing mechanism 20 is arranged on the land leveling machine body 10, and the reversing component 25 is connected to the land leveling machine body 10 (specifically, in one embodiment, the reversing component 25 is connected to the cam-shaped frame fixed flat plate 11 of the land leveling machine body 10). The land leveling machine body 10 is also provided with a rotary tillage mechanism 40, a ditching mechanism 50, a leveling mechanism 60 and a hole-pressing mechanism 70. By providing the reversing mechanism 20 in the land leveling machine body 10, the main linear lifting unit 22 is used to control the position lifting of the land leveling machine body 10, and the reversing component 25 is used to drive the land leveling machine body 10 to rotate forward or reverse. When a right-angle turn is required, the main body 10 of the land leveler is first lifted off the ground, and then the linked dual-control clutch mechanism 30 is used to control the reversing assembly 25 to rotate forward or reverse, so that the main body 10 of the land leveler is rotated forward or reverse in the air. After reaching the set angle, the main body 10 of the land leveler is lowered, thus achieving an in-situ turn of the main body 10 of the land leveler. The operator uses the right-angle reversing box ditch self-leveling row hole pressing land leveler 1000 to operate more simply and quickly, requires less space for turning, and has high work efficiency. During the turning process, there is no need to repeatedly reverse and adjust the position of the vehicle, which reduces the impact on the prepared field. In addition, the coordinated cooperation of the rotary tillage mechanism 40, the ditching mechanism 50, the leveling mechanism 60, and the row hole pressing mechanism 70 can realize the functions of loosening soil, freely adjusting the plowing depth, forming furrows on both sides, leveling the soil box, and pressing rows or holes on the box surface at one time, greatly reducing the workload and labor intensity of soil excavation, loosening soil, leveling, and planting. It is suitable for use in the field of row sowing, hole sowing, direct sowing or transplanting and direct planting, and can fully utilize the land area to prepare the furrows and ridges.

[0086] In other embodiments, other existing agricultural machinery devices may be further provided on the land preparation machine body 10 to achieve different operation requirements.

[0087] Preferably, in one embodiment, the rotary tillage mechanism 40, the leveling mechanism 60, and the hole pressing mechanism 70 are sequentially arranged at the front, middle, and rear portions of the bottom surface of the land leveling machine body 10, the ditching mechanism 50 is arranged at the bottom portion of the middle portions of both sides of the land leveling machine body 10, and the leveling mechanism 60 is arranged at the bottom portion of the middle and rear portions of the land leveling machine body 10. The rotary tillage mechanism 40, the ditching mechanism 50, and the leveling mechanism 60 are all transmission-connected to the land leveling machine body 10.

[0088] Preferably, in one embodiment, the rotary tillage mechanism 40 includes a rotary tillage shaft 41 and a furrow and ridge rotary tillage wheel 42 and a bed surface rotary tillage wheel 43 provided on the rotary tillage shaft 41. The diameter of the furrow and ridge rotary tillage wheel 42 is larger than the diameter of the bed surface rotary tillage wheel 43. The furrowing mechanism 50 is located at the rear side of the furrow and ridge rotary tillage wheel 42. Specifically, the bed surface rotary tillage wheel 43 is used to loosen and crush the soil on the bed surface, and the furrow and ridge rotary tillage wheel 42 is used to loosen and crush the soil in the furrow and ridge, and to collect the crushed soil into the furrowing mechanism 50 on both sides and send it into the leveling mechanism 60. The leveling mechanism 60 then levels the sent crushed soil.

[0089] Specifically, in one embodiment, two furrow and ridge rotary tilling wheels 42 are provided, on both sides of the two rotary tilling shafts 41 , and the deck rotary tilling wheel 43 is located in the area between the two furrow and ridge rotary tilling wheels 42 .

[0090] Specifically, in one embodiment, the diameter of the furrow and ridge rotary tilling wheel 42 is 50 to 80 mm larger than the diameter of the bed rotary tilling wheel 43 .

[0091] Preferably, in one embodiment, two grooving mechanisms 50 are provided, and both grooving mechanisms 50 are groove-shaped structures with inverted dustpans. The end face of the small end of the grooving mechanism 50 is closed, and the large end of the grooving mechanism 50 is open. The closed end of the small end of each grooving mechanism 50 is hinged to the bottom of both sides of the land leveling machine body 10, and the grooving mechanism 50 is tilted and arranged at the bottom of both sides of the land leveling machine body 10. A waist-shaped positioning groove is provided on one side wall of the large end of the grooving mechanism 50, and two screws pass through the waist-shaped positioning groove to install the grooving mechanism 50 on the land leveling machine body 10. The waist-shaped positioning groove is arranged in the vertical direction to realize the vertical positioning of the open end of the groove, so that the open ends of the two grooves are lower than the closed ends and are tilted and arranged at the bottom of both sides of the middle part of the land leveling machine body 10. A notch is provided on one side wall of the closed end of each groove, and the notch matches the position of the leveling mechanism 60.

[0092] Preferably, in one embodiment, the leveling mechanism 60 is a pair of opposing spiral flat wheels, and the diameters of the spiral wheels at both ends of the pair of opposing spiral flat wheels are consistent.

[0093] Specifically, the notch matches the position of the spiral flat wheel.

[0094] Preferably, in one embodiment, the acupuncture point pressing mechanism 70 includes a acupuncture point pressing shaft 71 and acupuncture point pressing assembly 72, and a plurality of acupuncture point pressing assemblies 72 are provided, and a plurality of acupuncture point pressing assemblies 72 are sequentially arranged on the acupuncture point pressing shaft 71 along the axial direction of the acupuncture point pressing shaft 71. The acupuncture point pressing assembly 72 includes a acupuncture point pressing wheel 721 and acupuncture point pressing head 722, and the acupuncture point pressing wheel 721 is arranged on the acupuncture point pressing shaft 71, and the position between adjacent acupuncture point pressing wheels 721 is adjustable. A plurality of acupuncture point pressing heads 722 are sequentially arranged on the outer circumference of each acupuncture point pressing wheel 721, and the radial position of the acupuncture point pressing head 722 on the same acupuncture point pressing wheel 721 is adjustable. The acupuncture point pressing assembly 72 can be changed to act on simple acupuncture or acupuncture. For example, the acupuncture point pressing head 722 can be removed to perform acupuncture alone.

[0095] Preferably, in one embodiment, the soil leveling machine body 10 is further provided with a dual-action steering mechanism 80, located at the front of the soil leveling machine body 10. A guide wheel 81 is provided at the bottom of the dual-action steering mechanism 80, and the dual-action steering mechanism 80 is also provided with a guide wheel lifting unit 82 for controlling the raising and lowering of the guide wheel 81. In other words, in this embodiment, the guide wheel 81 of the soil leveling machine body 10 is a liftable structure, and the position and height of the guide wheel 81 can be adjusted by the guide wheel lifting unit 82. The dual-action steering mechanism 80 has two main functions: first, guiding the soil leveling machine body 10. The rotation of the guide wheel 81 can be controlled by the steering wheel, thereby adjusting the forward direction of the soil leveling machine body 10; second, the guide wheel lifting unit 82 can be used to raise or lower the guide wheel 81 to adjust the depth and size of the soil loosening and crushing in the trench box.

[0096] Specifically, in one embodiment, the guide wheel lifting unit 82 uses a double-acting hydraulic cylinder. By turning the automatic lifting control knob of the integrated circuit control panel 19 on the soil leveling machine body 10 to the raising or lowering indication position, the guide wheel hydraulic valve 103 can be used to adjust the depth of the ridge plowing required to meet the ridge plowing depth. The hydraulic control pressure increase or pressure relief adjusts the rise or fall of the guide wheel 81, thereby adjusting the depth of the soil loosening. Of course, in other embodiments, it can also be replaced with other structures that realize linear motion, such as cylinders or electric cylinders, as long as they can meet the load and working conditions.

[0097] Specifically, in one embodiment, the guide double-acting operating mechanism 80 is provided with two guide wheels 81 and two guide wheel lifting units 82 .

[0098] In one embodiment, the guide double-acting operating mechanism 80 further includes a cylinder sleeve mechanism assembly 83 arranged outside the guide wheel lifting unit 82.

[0099] Preferably, in one embodiment, the right-angle reversing box-ditch self-leveling hole-pressing soil leveling machine 1000 further includes an integrated circuit main controller. Components on the soil leveling machine body 10 and components in the reversing mechanism 20 can all be electrically connected to the main controller (e.g., the diesel engine, the integrated circuit control panel 19, various sensors, various solenoid valves, various hydraulic valves, etc.). The integrated circuit main controller coordinates the soil leveling machine body 10 and the reversing mechanism 20, writes the corresponding logic control program into the integrated circuit main controller, and is provided with the integrated circuit control panel 19. The integrated circuit control panel 19 is also provided with a pause button, which can also be used for emergency shutdown. The operator can select the corresponding operation key from the integrated circuit control panel 19, greatly improving the efficiency of use and reducing the difficulty of operation.

[0100] In one embodiment, the lifting and steering movements of the land leveling machine body 10 are designed to be controlled by both electric automatic control and electric manual control. A power key switch can be provided on the integrated circuit control panel 19. When the power key switch is in the "OFF" position, the power supply to the controller and solenoid valve is completely disconnected, and system control operations are inoperative. When the power key switch is in the "ON" position, the "manual" or "automatic control" power supply is energized. When the power key switch is in the "ignition" position, the starter is activated to start the diesel engine. A charging indicator light can also be provided on the integrated circuit control panel 19. When the power key switch is in the "ON" position, the charging indicator light is on when the generator is not generating electricity, and the charging indicator light is off when generating electricity. The integrated circuit control panel 19 may also be provided with a control mode knob and a manual control knob. When the control mode knob switch is in the "manual" gear, the manual control three-speed knob switch takes effect; when the manual control three-speed knob switch is in the "up" gear, the rising electromagnets of the main linear lifting unit 22 and the support base lifting auxiliary linear lifting unit 26 are turned on, and when the hydraulic oil pump is running, the oil cylinder extends, and the agricultural machine is in an ascending state; when the manual control three-speed knob switch is in the "stop" gear, the solenoid valves of the main linear lifting unit 22 and the support base lifting auxiliary linear lifting unit 26 are de-energized, and the oil cylinder stops extending or retracting and maintains the current state; when the manual control three-speed knob switch is in the "down" gear, the descending electromagnets of the main linear lifting unit 22 and the support base lifting auxiliary linear lifting unit 26 are energized. At this time, regardless of whether the oil pump is started or not, the main linear lifting unit 22 is retracted by the vehicle's own weight, and the two support base lifting auxiliary linear lifting units 26 can only be fully retracted when the oil pump is started, so that the support base 21 is in a "suspended" position.

[0101] When the control mode knob is in the "Auto" position, the main controller is powered on and the control program runs. When the control mode is in the automatic state, pressing the start button causes the control program to begin executing the specified actions. In automatic control mode and with the oil pump running, pressing the "Start" button energizes the rising electromagnets Y1 and Y4 in the solenoid valve, causing the vehicle to rise. When the rising limit switch (the second position detection sensor 151) is touched and closed, the rising electromagnets Y1 and Y4 in the solenoid valve are de-energized, and the oil cylinder maintains its current state, i.e., the vehicle maintains its current elevation. The mechanical portion controls the vehicle to rotate 90 degrees in the specified direction. When the 90-degree rotation position is reached, the descending electromagnets Y2 and Y3 in the solenoid valve are energized, retracting the oil cylinder and causing the vehicle to descend. When the support base lifting auxiliary linear lift unit 26 retracts and touches the descending limit switch, the descending electromagnets Y2 and Y3 in the solenoid valve are de-energized, placing the support base 21 in a "suspended" state, completing the entire control process. At any stage during the program operation, pressing the "Pause" button will pause the program and cut off the power to all solenoid valves, keeping the cylinders in their current state and stopping the operation. When the "Pause" button is pressed again, the button pops up and the program operation is resumed immediately.

[0102] Preferably, in one embodiment, the main body 10 of the land leveling machine is further provided with a drive wheel clutch mechanism 91 and a hydraulic transmission shaft clutch mechanism 92. The drive wheel clutch mechanism 91 is used to control the clutching of the drive wheel, and the hydraulic transmission shaft clutch mechanism 92 is used to control the clutching of the hydraulic transmission shaft. In other words, in this embodiment, clutches are respectively provided on the power transmission paths of the drive wheel and the hydraulic transmission shaft, and the drive wheel clutch mechanism 91 and the hydraulic transmission shaft clutch mechanism 92 are used to control the movement of these clutches, thereby achieving the clutching of power transmission. The drive wheel is the power wheel that drives the main body 10 forward, and in one embodiment, it is the rear wheel of the main body 10 of the land leveling machine. More preferably, in one embodiment, the drive wheel clutch mechanism 91 and the hydraulic transmission shaft clutch mechanism 92 both employ vertically inclined sliding structures. Through guide rails connected to the machine body 10 and capable of sliding up and down, and through a pull rod connected to the clutch, the clutch's dual roller pins slide vertically within dual opposing inclined grooves, driving the clutch to slide laterally along the axial direction, thereby achieving a clutching effect. This allows the machine body 10 to remain stable during its ascent without axial swinging or shaking, thereby ensuring safe and reliable operation of the machine body 10.

[0103] In one embodiment, the working principle of the right-angle reversing box trench self-leveling type burr hole leveling machine 1000 is as follows: Initial State: The reversing mechanism 20 is constrained by the two support-lifting secondary linear lift units 26. The support base 21 is above the bottom of the grading machine body 10. The main linear lift unit 22 is deenergized, and the support base 21 is stationary on the ground. The fixed gear 24 at the upper end of the central vertical shaft 23 and the rotating gear 251 fixed to the first drive shaft 252 are not engaged. The dual-control clutch 17 is disengaged, and the angle correction positioning rod 212 is located in the V-shaped opening of the positioning slot 141 of the angle correction positioning plate 14 provided in the lower portion of the grading machine body 10. At this point, the operator drives the machine, controlling the direction of operation and determining the direction of the upcoming furrowing and ridge work using the steering wheel.

[0104] When steering is required, the main body 10 of the land leveling machine is first lifted off the ground through the hydraulic control system to turn, and then the main body 10 of the land leveling machine is restored to a stationary state on the ground. The specific operation sequence for starting the machine is: 1. Start the starter motor connected to the diesel engine through the diesel engine start knob on the integrated circuit control panel 19 to start the diesel engine. 2. Turn the automatic control knob of the integrated circuit control panel 19 to the automatic control position and press and hold the automatic button on the side. 3. Push the control handle 171 of the dual-control clutch 17 outward to engage the dual-control clutch 17. 4. Push the diesel engine acceleration and deceleration control handle 110 forward to accelerate the diesel engine. 5. Pull up the control handle 921 in the hydraulic clutch mechanism 92 to engage the clutch, so that the hydraulic transmission shaft 922 rotates and works. At this time, the main linear lifting unit 22 will drive the land leveling machine body 10 to rise. At the same time, the first driving shaft 252 and the rotating gear 251 installed on the cam-shaped frame fixed plate 11 of the land leveling machine body 10 also move upward at the same time until the fixed gear 24 at the upper end of the central vertical shaft 23 is engaged with the rotating gear 251. At the same time, by pressing the elastic pressing piece 152 on the second position detection sensor assembly 15 and under the control of the electrical connection, the second position detection sensor 151 contact is closed and powered off, and the second solenoid valve 102 is closed to maintain hydraulic pressure. At the same time, the first driving shaft 252 is driven by driving power to drive the rotating gear 251 to rotate circumferentially around the fixed gear 24 at the upper end of the central vertical shaft 23, thereby driving the land leveling machine body 10 to turn left or right. When the soil leveling machine body 10 completes a desired reversing angle, the bearing mounted on the push rod 16 is ejected by engaging one of the four movable protrusions 282 evenly distributed on the positioning flange 28. This causes the elastic pressure piece 152 on the second position detection sensor assembly 15 to spring up, releasing the contacts of the second position detection sensor 151. This releases power under electrical control, opening the second solenoid valve 102 and releasing hydraulic pressure. Simultaneously, the power input to the rotating gear 251 is disconnected. Simultaneously, as the main linear lift unit 22 releases pressure, the soil leveling machine body 10, along with the first drive shaft 252 and the rotating gear 251, descends integrally along the inner wall of the lift cylinder body 221 and the outer wall of the central vertical shaft 23. The fixed gear 24 on the central vertical shaft 23 disengages from the rotating gear 251 on the first drive shaft 252, and the soil leveling machine body 10 descends to the ground under the action of gravity. Then, oil is injected into the hydraulic pipe at the upper end of the supporting seat lifting secondary linear lifting unit 26 to increase pressure, so that the supporting base 21 is raised, and at the same time, the horizontal connecting rod 272 and other components are raised together.After reaching a certain height, the top plate 273 presses against the contact of the first position detection sensor 13, and the first solenoid valve 101 closes, stopping the rise of the support base 21. This facilitates the movement of the soil leveling machine body 10, and the soil leveling machine body 10 has now completed a lifting, lifting, and turning operation. 6. The control handle 171 of the dual-control clutch 17 is pushed outward to engage the dual-control clutch 17. 7. The clutch control handle 93 of the rotary tillage mechanism 40 is pushed outward to engage the clutch in the power transmission path of the rotary tillage mechanism 40, causing the rotary tillage mechanism 40 to rotate. 8. Adjust the hydraulic pressure of the guide wheel lifting unit 82, that is, turn the automatic lifting control knob of the integrated circuit control panel 19 to the raising or lowering indication position. The guide wheel hydraulic valve 103 can then be used to adjust the ridge plowing depth to achieve the desired ridge plowing depth. 9. Pulling the control handle of the driving wheel clutch mechanism 91 engages the clutch of the driving wheel, causing the driving wheel on the drive shaft to rotate and drive the machine to move in the working direction to loosen the fine soil in the ridges. The rotary tilling mechanism 40 uses the ridge rotary tilling wheel 42 and the bed surface rotary tilling wheel 43 to loosen the fine soil in the ridges and continuously collects the fine soil in the ridges and continuously feeds it into the ditching mechanism 50 on both sides and then into the leveling mechanism 60. The fine soil is then continuously spirally transported toward the center of the bed surface by the leveling mechanism 60, so that the fine soil is leveled across the bed surface. The working order is as follows: the ditching mechanism 50 moves forward with the machine, and its open end collects the loosened and fine soil on both sides of the working area and squeezes it into the scoop opening and then into the notches provided on the two side walls of the spiral wheel. The soil overflows from the notches to the position of the rotating double-sided spiral leveling wheels. As the double-sided spiral wheels rotate, they continuously transport the fine soil on both sides to the bed surface, thus leveling the bed surface. The row-pressing hole shaft 71 in the row-pressing hole mechanism 70 rotates, and the row-pressing hole wheel 721 or the row-pressing hole head 722 arranged thereon presses rows or holes of a specified spacing on the surface of the soil box. The row-pressing hole assembly 72 can be changed to act on simple row-pressing or hole-pressing. If the row-pressing hole head 722 is removed, the row can be pressed alone.

[0105] When completing a round of digging, digging trenches on both sides, leveling the soil box, pressing holes on the box surface, or pressing rows or holes individually and needing to change the working position, the operator needs to: 1. Pull up the control handle of the drive wheel clutch mechanism 91 to disengage the clutch of the drive wheel, stop the drive wheel from rotating, and stop the main body 10 of the tillage machine from moving. 2. Pull the control handle 93 of the clutch of the rotary tillage mechanism 40 inward to disengage the clutch on the power transmission path of the rotary tillage mechanism 40, and stop the rotary tillage mechanism 40 from working. 3. Push down the control handle of the drive wheel clutch mechanism 91, let the main body 10 of the tillage machine move a distance of the machine body width, and then pull up the control handle of the drive wheel clutch mechanism 91 to disengage the clutch and stop the drive wheel from rotating. 4. When the integrated circuit control panel 19 is in the automatic control position, the main body 10 of the land leveling machine is automatically lifted and separated from the ground under the action of the electric control hydraulic pressure. The first drive shaft 252 and the rotating gear 251 installed on the cam-shaped frame fixed plate 11 of the main body 10 of the land leveling machine also move upward at the same time until the fixed gear 24 at the upper end of the central vertical shaft 23 is engaged with the rotating gear 251 in the reversing assembly 25. At the same time, the elastic pressing piece 152 is pressed down and the second position detection sensor 151 is electrically connected and the power is turned off. At the same time, the second solenoid valve 102 is closed to maintain the hydraulic pressure. At the same time, the first drive shaft 252 is driven by the driving power to drive the rotating gear 251. The second position detection sensor assembly 15 rotates circumferentially around the fixed gear 24 (in operation, the steering direction is determined by pulling up the control handle 171 of the dual-control clutch 17 to engage the clutch for left-hand steering or pushing down the clutch to engage the clutch for right-hand steering), simultaneously driving the soil leveling machine body 10 to rotate left or right, achieving a desired steering angle. When a desired steering angle is achieved, the second position detection sensor assembly 15 passes through the protruding, movable protrusion 282, which instantly ejects the bearing on the push rod 16, simultaneously springing up the elastic pressure plate 152. Under the control of the electrical connection, the contacts of the second position detection sensor 151 spring open, energizing the machine body 10 and releasing pressure through the second solenoid valve 102. Under the action of gravity on the soil leveling machine body 10, the rotating gear 251 disengages from the fixed gear 24, and the soil leveling machine body 10, driving the first drive shaft 252 and other components mounted thereon, descends to the ground. Then, the solenoid valve of the hydraulic control component of the two support seat lifting sub-linear lifting units 26 is opened, and the connecting pipe at the upper end of the two support seat lifting sub-linear lifting units 26 is pressurized to lift the support base 21 to the detection position of the first position detection sensor 13 and break away from the ground contact, completing the lifting and turning movement of the land leveling machine body 10.6. Push down the control handle of the driving wheel clutch mechanism 91 (pushing outward the control handle 93 of the clutch of the rotary tillage mechanism 40), the driving wheel rotates, and the tillage machine body 10 moves forward to till the furrows and ridges; repeat this operation until the required tillage area is completed.

[0106] The specific machine operation process is as follows: when the integrated circuit control panel 19 is in the automatic control position, that is, the automatic button on the side is pressed, the lifting cylinder body 221 receives the command and, under the action of hydraulic pressure, the lifting cylinder is filled with oil, causing the tubular plunger 222 to move upward along the inner wall of the lifting cylinder body 221, lifting the land leveling machine body 10 off the ground. The first drive shaft 252 and the rotating gear 251 mounted on the cam frame fixed plate 11 of the land leveling machine body 10 also move upward until the rotating gear 251 meshes with the fixed gear 24. The driving power drives the rotating gear 251 to rotate around the circumference of the fixed gear 24 through the first drive shaft 252, driving the land leveling machine body 10 to rotate and reverse direction. When the steering is complete, the lifting cylinder body 221 is depressurized via an automatic control circuit command, and the tubular plunger 222 moves downward along the inner wall of the lifting cylinder body 221, causing the soil leveling machine body 10, the first drive shaft 252 mounted thereon, and the rotating gear 251 to descend together. The rotating gear 251 disengages from the fixed gear 24, and the soil leveling machine body 10 descends to the ground. Then, via circuit commands, the first solenoid valve 101, controlled by the first position detection sensor 13 that controls the hydraulic pressure, is opened, increasing the pressure in the connecting pipes at the upper ends of the two support base lifting sub-linear lifting units 26, lifting the support base 21 to the position of the first position detection sensor 13 until it is completely out of contact with the ground.

[0107] The following further explains the operation process of each structure: The operation of the machine to turn left or right and the machine operation process: operate the handle 31 set on the land leveling machine body 10 to drive the sliding rod 312 to slide vertically up and down in the reversing groove 311, and then drive the fork push rod 32 to slide left and right along its axis, so that the first fork 33 and the second fork 34 set on the fork push rod 32 drive the power input shaft 18 to move, and the power input shaft 18 moves left or right, so that the clutch pawl 181 on one of the power input shafts 18 engages with the clutch structure 2533 set at the end of the second drive shaft 2534, and under the action of the power drive shaft, provides left or right rotation power to the first bevel gear 2521, and drives the rotating gear 251 to rotate around the circumference of the fixed gear 24 through the first drive shaft 252, driving the land leveling machine body 10 to rotate and reverse, thereby realizing the left or right steering of the land leveling machine body 10.

[0108] Steering angle control: The first drive shaft 252 provides driving power through the second bevel gear 2531 or the third bevel gear 2532 engaged with the first bevel gear 2521 fixed at the lower end of the shaft, so that the rotating gear 251 rotates circumferentially around the fixed gear 24 fixed at the upper end of the central shaft, driving the land leveling machine body 10 to rotate. The bearing mounted on the push rod 16 and the second position detection sensor assembly 15 roll along the outer circle of the positioning and fixing flange 28. When the bearing and the second position detection sensor assembly 15 roll to any one of the four movable circular protrusions 282 evenly arranged on the circumference of the positioning and fixing flange 28, the bearing and the second position detection sensor assembly 15 are ejected by the circular protrusion 282, and at the same time, the dual-control clutch 17 connected to the diesel engine power is ejected, thereby cutting off the driving power of the power input shaft 18, and the land leveling machine body 10 stops rotating. At the same time, the elastic pressure piece 152 on the second position detection sensor assembly 15 springs up, releasing the contact of the second position detection sensor 151. Under electrical control, the second solenoid valve 102 opens, releasing hydraulic pressure. As the main linear lift unit 22 releases pressure, the main soil leveling machine body 10 descends under gravity. Simultaneously, the first drive shaft 252 and the rotating gear 251 fixed thereto descend together, disengaging from the fixed gear 24, until the main soil leveling machine body 10 is lowered to the ground. Then, when the hydraulic pressure to the main linear lift unit 22 is cut off, the integrated circuit control panel 19 simultaneously controls the first position detection sensor 13, which controls the hydraulic pressure. This controls the first solenoid valve 101, increasing the pressure in the connecting pipes at the upper ends of the two support base lifting and auxiliary linear lift units 26. This lifts the support base 21 to the position of the first position detection sensor 13, depressing the contact of the first position detection sensor 13 and maintaining hydraulic pressure. Finally, the entire support base 21 is completely free of contact with the ground.

[0109] Coordination of the steering angle auxiliary components: The solenoid valves of the hydraulic control components connected to the two support base lifting auxiliary linear lifting units 26 are opened, and the connecting pipes at the upper ends of the two support base lifting auxiliary linear lifting units 26 are filled with oil to increase pressure, thereby lifting the support base 21. The two support base lifting auxiliary linear lifting units 26 pull the main linear lifting unit 22 upward, and the lifting cylinder body 221 discharges oil into the oil tank. At the same time, the angle correction positioning rod 212 is inserted into the V-shaped opening of the positioning groove 141 of the angle correction positioning plate 14. Since the angle correction positioning plate 14 has a V-shaped opening facing the angle correction positioning rod 212, if the land leveling machine body 10 rotates 90 degrees and there is a deviation, it can be corrected by the angle correction positioning rod 212 and the V-shaped opening of the angle correction positioning plate 14, thereby improving the accuracy of right-angle steering. At this point, the land leveling machine body 10 returns to its initial state and proceeds to the next operation.

[0110] The above description is only an embodiment of the present invention. It should be pointed out that those skilled in the art can make improvements without departing from the creative concept of the present invention, but these improvements all fall within the scope of protection of the present invention.

Claims

1. A reversing mechanism, characterized in that: It includes a supporting base, a main linear lifting unit, a central vertical shaft, a fixed gear and a reversing assembly; The main linear lifting unit is arranged on the supporting base; The central vertical shaft is fixedly arranged on the support base; The fixed gear is arranged on the central vertical shaft; The reversing assembly is used to connect with the vehicle, and the reversing assembly is connected to the main linear lifting unit, and the reversing assembly is provided with a rotating gear matching the fixed gear; The main linear lifting unit can drive the reversing assembly to move up and down so that the rotating gear is engaged with the fixed gear; the rotating gear can rotate circumferentially around the fixed gear to drive the reversing assembly to reverse.

2. The reversing mechanism according to claim 1, characterized in that: The central vertical shaft is coaxially and parallelly arranged with the main linear lifting unit; The main linear lifting unit includes a lifting cylinder body and a hollow tubular plunger disposed in the lifting cylinder body; The central vertical shaft is inserted into the central through hole of the tubular plunger, and the bottom of the central vertical shaft is fixedly connected to the support base, and the fixed gear is arranged on the upper end of the central vertical shaft; The reversing assembly is connected to the tubular plunger.

3. The reversing mechanism according to claim 1, characterized in that: It also includes a support base lifting sub-linear lifting unit, and the support base lifting sub-linear lifting unit is connected to the support base and the vehicle respectively.

4. The reversing mechanism according to claim 3, characterized in that: The support seat lifting sub-linear lifting unit is connected to the support base through a turntable, and the turntable is rotatably connected to the support base.

5. The reversing mechanism according to claim 3, characterized in that: It also includes a connecting frame plate, upper and lower vertical sliding rods and a horizontal connecting rod; The connecting frame plate is arranged outside the main linear lifting unit; The upper and lower vertical sliding rods are arranged parallel to the central vertical axis; The two ends of the horizontal connecting rod are respectively connected to the connecting frame plate and the upper and lower vertical sliding rods; A vertical guide opening sliding sleeve is provided on the vehicle, and the upper and lower vertical sliding rods are slidably provided in the vertical guide opening sliding sleeve.

6. The reversing mechanism according to claim 5, characterized in that: The connecting frame plate is provided with a mounting through hole, and the supporting seat lifting sub-linear lifting unit is movably installed in the mounting through hole provided on the connecting frame plate.

7. The reversing mechanism according to claim 5, characterized in that: A first position detection sensor is provided on the vehicle, and a top plate is provided on the transverse connecting rod, and the top plate is provided corresponding to the first position detection sensor; The first position detection sensor is used to detect the position of the top plate to control the operating state of the support base lifting sub-linear lifting unit.

8. The reversing mechanism according to claim 3, characterized in that: An angle correction positioning rod is provided on the support base; The vehicle is provided with an angle correction positioning plate, which is provided with a positioning groove matching the angle correction positioning rod, and the end of the angle correction positioning plate is provided with a guide opening connected to the positioning groove, and the guide opening faces the angle correction positioning rod, and the guide opening is used to guide and correct the position of the angle correction positioning rod.

9. The reversing mechanism according to claim 1, characterized in that: It also includes a positioning and fixing flange, which is fixed on the central vertical shaft and located on the upper side of the fixed gear; The vehicle is provided with a second position detection sensor assembly, the second position detection sensor assembly comprising a second position detection sensor and an elastic pressing piece provided on the top of the second position detection sensor; The positioning and fixing flange is arranged corresponding to the second position detection sensor. An extrusion portion is arranged on the top of the positioning and fixing flange. The extrusion portion is used to press down the elastic pressing piece so that the elastic pressing piece squeezes the second position detection sensor to control the operating state of the main linear lifting unit.

10. The reversing mechanism according to claim 9, characterized in that: A movable circular protrusion is provided on the circumferential surface of the positioning and fixing flange, and the circular protrusion is used to push out the second position detection sensor assembly to separate the elastic pressing piece from the extrusion portion; Furthermore, the circular protrusion is also used to control the clutch and disconnection of the power source of the rotating gear.

11. The reversing mechanism according to claim 1, characterized in that: The reversing assembly further includes a first drive shaft and a bevel gear assembly; The first drive shaft is connected to the rotating gear, and a first bevel gear is provided on the first drive shaft; The bevel gear assembly is provided with a second drive shaft, a second bevel gear, and a third bevel gear, and the second bevel gear and the third bevel gear are respectively engaged with the first bevel gear; the second bevel gear and the third bevel gear are respectively provided at both ends of the second drive shaft, and the ends of both ends of the second drive shaft are respectively provided with a clutch structure; The vehicle is provided with a power input shaft and a linked dual-control clutch mechanism; The power input shafts are respectively provided on the outer sides of the ends of both ends of the second drive shaft, and a clutch pawl matching the clutch structure is provided at the end of each power input shaft; The linked dual-control clutch mechanism is connected to the two power input shafts to drive the power input shafts to move so as to control the clutch pawl and the clutch structure.

12. The reversing mechanism according to claim 11, characterized in that: The linked dual-control clutch mechanism is a vertical oblique sliding structure, and the linked dual-control clutch mechanism includes a handle, a shift fork push rod, a first shift fork and a second shift fork; One end of the shift fork push rod is fixedly connected to a slide rod in a reversing groove provided at the lower part of the handle, and the reversing groove is arranged to be inclined relative to the axis of the shift fork push rod; The first shift fork and the second shift fork are respectively arranged on the shift fork push rod, and the first shift fork is connected to one of the power input shafts, and the second shift fork is connected to the other power input shaft; When the handle slides up and down, the slide rod slides along the reversing groove to drive the shift fork push rod to move left and right along its axis to drive the power input shaft to move to control the clutch pawl and the clutch structure.

13. A right-angle reversing box ditch self-leveling type hole pressing and ground leveling machine, characterized in that: The machine comprises a soil leveling machine body and a reversing mechanism according to any one of claims 1 to 12, wherein the reversing mechanism is provided on the soil leveling machine body, and the reversing assembly is connected to the soil leveling machine body; The main body of the land preparation machine is also provided with a rotary tillage mechanism, a ditching mechanism, a leveling mechanism and a hole pressing mechanism.

14. The right-angle reversing box ditch self-leveling ground preparation machine according to claim 13, characterized in that: The rotary tillage mechanism, the leveling mechanism, and the hole pressing mechanism are sequentially arranged at the front, middle, and rear parts of the bottom surface of the land preparation machine body, and the ditching mechanism is arranged at the bottom of the middle parts of both sides of the land preparation machine body.

15. The right-angle reversing box ditch self-leveling ground preparation machine according to claim 13, characterized in that: The rotary tillage mechanism includes a rotary tillage shaft and a furrow and ridge rotary tillage wheel and a bed surface rotary tillage wheel arranged on the rotary tillage shaft, wherein the diameter of the furrow and ridge rotary tillage wheel is larger than the diameter of the bed surface rotary tillage wheel; The furrowing mechanism is located at the rear side of the furrow and ridge rotary tilling wheel.

16. The right-angle reversing box-ditch self-leveling ground preparation machine according to claim 13, characterized in that: There are two grooving mechanisms, and both of the grooving mechanisms are groove-reverse scoop-shaped structures, the end face of the small end of the grooving mechanism is closed, and the large end of the grooving mechanism is open; the closed end of the small end of each grooving mechanism is hinged on the bottom of both sides of the land leveling machine body, and the grooving mechanisms are obliquely arranged at the bottom of both sides of the land leveling machine body; a waist-shaped positioning groove is provided on one side wall of the large end of the grooving mechanism, and a screw passes through the waist-shaped positioning groove to install the grooving mechanism on the land leveling machine body, and the waist-shaped positioning groove is arranged in the vertical direction; a notch is provided on one side wall of the closed end of each groove, and the notch matches the position of the leveling mechanism.

17. The right-angle reversing box-ditch self-leveling ground preparation machine according to claim 13, characterized in that: The leveling mechanism is a pair of opposite spiral flat wheels, and the diameters of the spiral wheels at both ends of the pair of opposite spiral flat wheels are consistent.

18. The right-angle reversing box-ditch self-leveling ground preparation machine according to claim 13, characterized in that: The acupoint pressing mechanism includes an acupoint pressing shaft and an acupoint pressing component; There are multiple acupuncture point pressing components, and the multiple acupuncture point pressing components are sequentially arranged on the acupuncture point pressing shaft along the axial direction of the acupuncture point pressing shaft; The acupressure assembly includes a acupressure wheel and a acupressure head. The acupressure wheel is arranged on the acupressure shaft, and the position between adjacent acupressure wheels is adjustable. A plurality of acupressure heads are sequentially arranged on the outer circumference of each acupressure wheel, and the radial position of the acupressure heads on the same acupressure wheel is adjustable.

19. The right-angle reversing box-ditch self-leveling ground preparation machine according to claim 13, characterized in that: The main body of the land leveling machine is also provided with a guide double-acting operating mechanism, and the guide double-acting operating mechanism is located at the front part of the main body of the land leveling machine; A guide wheel is provided at the bottom of the guide double-acting operating mechanism, and a guide wheel lifting unit for controlling the lifting of the guide wheel is also provided in the guide double-acting operating mechanism.

20. The right-angle reversing box-ditch self-leveling ground preparation machine according to claim 13, characterized in that: The main body of the land leveling machine is also provided with a driving wheel clutch mechanism and a hydraulic transmission shaft clutch mechanism; The driving wheel clutch mechanism is used to control the clutch of the driving wheel; The hydraulic transmission shaft clutch mechanism is used to control the clutch of the hydraulic transmission shaft; The driving wheel clutch mechanism and the hydraulic transmission shaft clutch mechanism both adopt a vertical oblique sliding structure.

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