An environmentally adaptive pre-filtration system

Abstract

The present invention discloses an environment-adaptive pre-filter system, comprising an air pre-filter tube connected to an engine system, wherein the air pre-filter tube is connected to the engine system via a soft connection structure, the air pre-filter tube has two states, a horizontal working state and a vertical working state, and the air pre-filter tube is connected to an adjustment structure for driving it to switch and maintain between the two states. The present invention enables the machine body to adapt to and switch between the operating requirements in different environments. When operating in an under-forest environment, the air pre-filter tube is in a horizontal working state, and the air inlet of the air pre-filter system is in a low position, thereby avoiding the interference of trees on the air pre-filter system; when operating in an open environment, the air pre-filter tube is in a vertical working state, and the air inlet of the air pre-filter system is in a high position, thereby reducing the impact of dust on the air pre-filter system, ensuring operating efficiency, extending the service life of the machinery, and achieving safe operation of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, and in particular to an environment self-adaptive pre-filtering system for garden machinery and equipment. Background Art

[0002] With the development of modern agriculture, higher requirements have been put forward for the development of agricultural mechanization, the improvement of work efficiency, and the improvement of agricultural production efficiency. As a major agricultural country, my country not only has a large area of ​​crop planting, but also a rich variety of crops, which requires agricultural machinery to meet different operating environments to a large extent. However, my country has great deficiencies in the flexibility and dynamism of agricultural machinery. The research and development level of key areas such as the main power equipment of agricultural machinery, the combination of control systems and crops is not perfect, resulting in the unsystematic development of agricultural machinery industrialization, and the production level is far from meeting the needs of the agricultural field.

[0003] Among them, the impact of switching between different environments on agricultural machinery is also more prominent. Existing agricultural machinery and equipment are difficult to meet the operating requirements in various environments. Take the unmanned lawn mower as an example (the unmanned lawn mower has no cab, and generally the highest point of its equipment is the inlet of the air pre-filtration system). The unmanned lawn mower must not only adapt to the understory environment of the garden, but also adapt to the open environment such as the river bank. In the switching between different environments, the air pre-filtration system of the power equipment of the lawn mower must be adaptively adjusted. When operating in the understory environment, in order to avoid the interference of trees on the air pre-filtration system, the air intake pre-filtration system is best to be in a low position. When operating in an open environment, the operating environment is harsh, and the air pre-filtration system is in a low position. It will quickly clog, seriously affecting the operating efficiency, shortening the service life of the machinery, and posing a threat to the safety of equipment operation. Therefore, it is best to be in a high position.

[0004] However, the existing equipment cannot adjust the height of the air pre-filtration system to adapt to different working environments.

[0005] The utility model patent with announcement number CN201283852Y discloses a new type of tractor air filter flip mechanism, which includes a flip bracket for installing the air filter, one end of the flip bracket is hinged to the machine body and the other end is provided with a locking device between the machine body, and a driving device for driving the flip bracket to rotate around the hinge point is also provided between the flip bracket and the machine body. The main purpose of this utility model is to make full use of the effective installation space of the tractor to achieve rapid maintenance and care, to reduce maintenance time, and to improve the economic benefits of users.

[0006] The utility model patent with announcement number CN206530574U provides an anti-leakage air filter mechanism and a flippable oil tank structure, which relate to the field of hydraulic equipment. The anti-leakage air filter mechanism includes a mounting seat, an air filter, a sealing member and an actuating member. The mounting seat is used to connect with the hydraulic oil tank, the mounting seat is provided with a ventilation chamber, the air filter is connected to one end of the mounting seat and a part of the air filter is located in the ventilation chamber. The sealing member includes a first joint and a second joint, the first joint is connected to the mounting seat, the first joint has an air passage for connecting the ventilation chamber and the hydraulic oil tank, the second joint is connected to the actuating member, and the actuating member can drive the second joint to move and open or close the air passage. The utility model can realize the overall flipping of the oil tank, and can prevent the hydraulic oil from leaking when the hydraulic oil tank shakes or flips during flipping.

[0007] The technical solutions of the above two patents cannot achieve the high and low position adjustment of the air pre-filtration system to adapt to different working environment switching. Summary of the invention

[0008] In order to solve the problems in the prior art, the present invention provides an environment adaptive pre-filtration system.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0010] An environment-adaptive pre-filter system comprises an air pre-filter tube connected to an engine system, wherein the air pre-filter tube is connected to the engine system via a soft connection structure, the air pre-filter tube has two states: a horizontal working state and a vertical working state, and the air pre-filter tube is connected to an adjustment structure for driving the air pre-filter tube to switch and maintain between the two states.

[0011] The adjustment structure includes a driving mechanism, which includes a rotating connector fixedly connected to the air pre-filter tube. The rotating connector is located at one end of the air pre-filter tube close to the soft connection structure and is rotatably connected to the vehicle body. A driver is provided between the rotating connector and the vehicle body. The driver drives the rotating connector to rotate from a horizontal state to a vertical state or from a vertical state to a horizontal state.

[0012] The driving mechanism is connected to a driving control mechanism, which includes an air quality sensor arranged in the air pre-filter tube, the air quality sensor is connected to a signal input end of a control unit, and a signal output end of the control unit is connected to the driver.

[0013] The driver is a lifting push rod.

[0014] The adjustment structure also includes a maintaining mechanism, which includes adsorption devices corresponding to the horizontal working state and the vertical working state of the air pre-filter tube respectively. The adsorption device is fixed at the corresponding position of the vehicle body and is adsorbed and connected with the air pre-filter tube in the horizontal working state and the vertical working state.

[0015] The maintaining mechanism is connected to a maintaining control mechanism, which includes limit switches corresponding to the horizontal working state and the vertical working state of the air pre-filter tube respectively. The limit switch is connected to the signal input end of the control unit, and the signal output end of the control unit is connected to the corresponding adsorption device.

[0016] The adsorption device is an electromagnetic adsorption device.

[0017] The air pre-filter tube comprises a tube body and an air pre-filter arranged at the end of the tube body.

[0018] The pipe body is composed of a rigid pipe section and a corrugated pipe section. The rigid pipe section is connected to a soft connection structure, the corrugated pipe section is connected to an air prefilter, and a telescopic mechanism is arranged between the air prefilter and the rigid pipe section.

[0019] The telescopic mechanism comprises a lifting push rod which is coaxially arranged with the tube body of the air pre-filter tube, and two ends of the lifting push rod are respectively connected to the air pre-filter and the rigid tube section.

[0020] The beneficial effects of the present invention are:

[0021] 1. In the present invention, the air pre-filter pipe is connected to the engine system through a soft connection structure. The air pre-filter pipe has two states: horizontal working state and vertical working state. The air pre-filter pipe is connected to an adjustment structure that drives it to switch and maintain between the two states, so that the machine body can adapt to and switch the operating requirements in different environments (underforest environment operation and open environment operation). When operating in an underforest environment, the air pre-filter pipe is in a horizontal working state, and the air inlet of the air pre-filter system is in a low position, which avoids the interference of trees on the air pre-filter system; when operating in an open environment, the air pre-filter pipe is in a vertical working state, and the air inlet of the air pre-filter system is in a high position, which reduces the impact of dust on the air pre-filter system, ensures operating efficiency, extends the service life of the machinery, and realizes safe operation of the equipment.

[0022] 2. The adjustment structure in the present invention includes a driving mechanism and a maintaining mechanism. The driving mechanism is used to drive the air pre-filter tube to switch between two states. The driving mechanism includes a rotating connector fixedly connected to the air pre-filter tube. The rotating connector is located at one end of the air pre-filter tube close to the soft connection structure and is rotatably connected to the vehicle body. A driver is provided between the rotating connector and the vehicle body. The driver drives the rotating connector to rotate from a horizontal state to a vertical state or from a vertical state to a horizontal state, thereby driving the air pre-filter tube to switch between the two states.

[0023] The driving mechanism is also connected to a driving control mechanism, which includes an air quality sensor disposed in the air pre-filter tube. The air quality sensor is connected to the signal input end of the control unit, and the signal output end of the control unit is connected to the driver, so as to realize automatic control. When the vehicle is working normally, the air quality sensor monitors the quality of the inhaled air in real time. When the air quality sensor detects that the air quality does not meet the requirements, it sends a signal to the control unit. After receiving the signal, the control unit converts the signal and sends it to the driver, and the driver drives the air pre-filter tube to rotate from a horizontal state to a vertical state. When the air quality sensor detects that the air quality meets the use requirements, it sends a signal to the control unit. After receiving the signal, the control unit converts the signal and sends it to the driver, and the driver drives the air pre-filter tube to rotate from a vertical state to a horizontal state.

[0024] The maintaining mechanism is used to maintain the stability of the air pre-filter tube in two different states. The maintaining mechanism includes adsorption devices corresponding to the horizontal working state and the vertical working state of the air pre-filter tube respectively. The adsorption device is fixed at the corresponding position of the vehicle body, and is adsorbed and connected with the air pre-filter tube in the horizontal working state and the vertical working state to achieve adsorption and fixation of the air pre-filter tube, ensuring that the parts are not affected by the vibration of the whole machine.

[0025] The maintenance mechanism is connected to a maintenance control mechanism, which includes limit switches corresponding to the horizontal working state and the vertical working state of the air pre-filter tube, respectively. The limit switch is connected to the signal input end of the control unit, and the signal output end of the control unit is connected to the corresponding adsorption device, so as to facilitate automatic control. When the air pre-filter tube rotates from the horizontal state to the vertical state, it stops rotating when it touches the limit switch in the vertical state position, and the adsorption device is energized at the same time, and the air pre-filter tube is adsorbed and fixed by the adsorption device; when the air pre-filter tube rotates from the vertical state to the horizontal state, it stops rotating when it touches the limit switch in the horizontal state position, and the adsorption device is energized at the same time, and the air pre-filter tube is adsorbed and fixed by the adsorption device.

[0026] In addition, when the air quality sensor detects that the air quality meets or does not meet the requirements, it sends a signal to the control unit. After receiving the signal, the control unit converts the signal and sends it to the driver. At the same time, it sends a signal to the corresponding adsorption device to cut off the power. The suction force of the adsorption device disappears, making it convenient for the driver to drive the air pre-filter tube to rotate.

[0027] 3. The air pre-filter tube in the present invention includes a tube body and an air pre-filter arranged at the end of the tube body. The tube body is composed of a rigid tube section and a corrugated tube section. The rigid tube section is connected to a soft connection structure, and the corrugated tube section is connected to the air pre-filter. A telescopic mechanism is provided between the air pre-filter and the rigid tube section. When the air pre-filter tube is rotated to a vertical position and still cannot meet the requirements, the telescopic mechanism will continue to raise the air pre-filter to a certain height to meet the use environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the adjustment state of the present invention;

[0030] Figure 3 It is an enlarged schematic diagram of the telescopic mechanism in the air pre-filter tube of the present invention. DETAILED DESCRIPTION

[0031] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0032] Embodiment 1:

[0033] like Figure 1 to Figure 2 As shown, an environmentally adaptive pre-filtration system of the present invention comprises an air pre-filtration tube 1 connected to an engine system, wherein the air pre-filtration tube 1 is connected to the engine system via a soft connection structure 2, so that the air pre-filtration tube 1 has two states: a horizontal working state and a vertical working state; and the air pre-filtration tube 1 is connected to an adjustment structure for driving it to switch and maintain between the two states.

[0034] In this embodiment, the flexible connection structure 2 is a bellows.

[0035] The adjustment structure includes a driving mechanism and a maintaining mechanism. The driving mechanism is used to drive the air pre-filter tube 1 to switch between two states, and the maintaining mechanism is used to maintain the stability of the air pre-filter tube in two different states.

[0036] The driving mechanism includes a rotating connector 3 fixedly connected to the air pre-filter tube 1. The rotating connector 3 is located at one end of the air pre-filter tube close to the soft connection structure 2 and is rotatably connected to the vehicle body. A driver is provided between the rotating connector 3 and the vehicle body. The driver drives the rotating connector 3 to rotate from a horizontal state to a vertical state or from a vertical state to a horizontal state, thereby driving the air pre-filter tube to switch between the two states.

[0037] In this embodiment, the driver is a lifting push rod 4, which is extended and retracted to drive the rotating connector 3 to rotate.

[0038] The driving mechanism is connected to a driving control mechanism, which includes an air quality sensor 5 arranged in the air pre-filter tube. The air quality sensor 5 is connected to the signal input end of the control unit 6, and the signal output end of the control unit 6 is connected to the lifting push rod 4, so as to realize automatic control.

[0039] When the vehicle is working normally, the air quality sensor 5 monitors the quality of the inhaled air in real time. When the air quality sensor 5 detects that the air quality does not meet the requirements, it sends a signal to the control unit 6. After receiving the signal, the control unit 6 converts the signal and sends it to the lifting push rod 4. The lifting push rod 4 contracts and drives the rotating connector 3 to rotate 90 degrees counterclockwise, thereby driving the air pre-filter tube 1 to rotate from a horizontal state to a vertical state. In this embodiment, the air inlet of the air pre-filter tube 1 is raised to a position 900mm from the top of the vehicle, away from the pollution source.

[0040] When the air quality sensor 5 detects that the air quality meets the use requirements, it sends a signal to the control unit. After receiving the signal, the control unit converts the signal and sends it to the lifting push rod 4. The lifting push rod 4 extends to drive the rotating connector 3 to rotate 90 degrees clockwise, thereby driving the air pre-filter tube to rotate from a vertical state to a horizontal state.

[0041] The maintaining mechanism includes an adsorption device 7 corresponding to the horizontal working state of the air pre-filter tube 1 and an adsorption device 8 corresponding to the vertical working state of the air pre-filter tube 1. The adsorption devices 7 and 8 are respectively fixed at corresponding positions of the vehicle body, and are adsorbed and connected with the air pre-filter tube 1 in the horizontal working state and the vertical working state to achieve adsorption and fixation of the air pre-filter tube, ensuring that the parts are not affected by the vibration of the whole machine.

[0042] The maintaining mechanism is connected to a maintaining control mechanism, which includes a limit switch 9 corresponding to the horizontal working state of the air pre-filter tube 1 and a limit switch 10 corresponding to the vertical working state of the air pre-filter tube 1. The limit switches 9 and 10 are connected to the signal input end of the control unit 6, and the signal output end of the control unit 6 is connected to the corresponding adsorption devices 7 and 8, so as to realize automatic control.

[0043] When the air pre-filter tube 1 rotates from a horizontal state to a vertical state, it stops rotating when it touches the limit switch 10 in the vertical state position, and at the same time, the adsorption device 8 is energized, and the air pre-filter tube 1 is adsorbed and fixed by the adsorption device 8; when the air pre-filter tube 1 rotates from a vertical state to a horizontal state, it stops rotating when it touches the limit switch 9 in the horizontal state position, and at the same time, the adsorption device 7 is energized, and the air pre-filter tube 1 is adsorbed and fixed by the adsorption device 7.

[0044] In addition, when the air quality sensor 5 detects that the air quality meets the requirements or does not meet the requirements, it sends a signal to the control unit 6. After receiving the signal, the control unit converts the signal and sends it to the lifting push rod 4. At the same time, it sends a signal to the corresponding adsorption devices 7 and 8 to cut off the power. The suction force of the adsorption device disappears, making it convenient for the lifting push rod 4 to drive the air pre-filter tube to rotate.

[0045] In this embodiment, the adsorption devices 7 and 8 are electromagnetic adsorption devices.

[0046] In this embodiment, the air pre-filter tube 1 includes a tube body and an air pre-filter 14 arranged at the end of the tube body, and the tube body is a rigid tube body.

[0047] Embodiment 2:

[0048] like Figure 3 As shown, the difference between this embodiment and the first embodiment is that the tube body of the air pre-filter tube 1 is composed of a rigid tube section 11 and a corrugated tube section 12, the rigid tube section 11 is connected to the soft connection structure 2, the corrugated tube section 12 is connected to the air pre-filter 14, and a telescopic mechanism is provided between the air pre-filter 14 and the rigid tube section 11.

[0049] In this embodiment, the telescopic mechanism includes a lifting push rod 13 arranged coaxially with the tube body of the air pre-filter tube 1, and two ends of the lifting push rod 13 are respectively connected to the air pre-filter 14 and the rigid tube section 11.

[0050] When the air pre-filter tube 1 rotates to a vertical position and still cannot meet the requirements, the lifting push rod 13 is actuated to further raise the air pre-filter 14 to a certain height to meet the use environment. In this embodiment, the lifting push rod 13 can raise the bellows section 12 (including the air pre-filter 14) by 300 mm.

[0051] The present invention enables the machine body to adapt to and switch between different operating requirements in different environments (underforest environment and open environment). When operating in an underforest environment, the air pre-filter pipe is in a horizontal working state, and the air inlet of the air pre-filter system is in a low position, thereby avoiding the interference of trees on the air pre-filter system; when operating in an open environment, the air pre-filter pipe is in a vertical working state, and the air inlet of the air pre-filter system is in a high position, thereby reducing the impact of dust on the air pre-filter system, ensuring operating efficiency, extending the service life of the machine, and realizing safe operation of the equipment.

[0052] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

Claims

1. An environmentally adaptive pre-filtration system for an unmanned lawn mower, comprising an air pre-filtration tube connected to an engine system, characterized in that: The air pre-filter pipe is connected to the engine system through a soft connection structure. The air pre-filter pipe has two states: a horizontal working state and a vertical working state. The air pre-filter pipe is connected to an adjustment structure for driving it to switch and maintain between the two states. The adjustment structure includes a driving mechanism and a maintaining mechanism, wherein the driving mechanism is used to drive the air pre-filter tube to switch between two states; and the maintaining mechanism is used to maintain the stability of the air pre-filter tube in two different states. The driving mechanism includes a rotating connector fixedly connected to the air pre-filter pipe, the rotating connector is located at one end of the air pre-filter pipe close to the soft connection structure and is rotatably connected to the vehicle body, and a driver is provided between the rotating connector and the vehicle body, and the driver drives the rotating connector to rotate from a horizontal state to a vertical state or from a vertical state to a horizontal state; The driving mechanism is connected to a driving control mechanism, which includes an air quality sensor disposed in the air pre-filter tube, the air quality sensor is connected to a signal input end of a control unit, and a signal output end of the control unit is connected to the driver; the driver is a lifting push rod; When the unmanned lawn mower is working normally, the air quality sensor monitors the quality of the inhaled air in real time. When the air quality sensor detects that the air quality does not meet the requirements, it sends a signal to the control unit. After receiving the signal, the control unit converts the signal and sends it to the lifting push rod. The lifting push rod contracts and drives the rotating connector to rotate 90 degrees counterclockwise, thereby driving the air pre-filter tube to rotate from a horizontal state to a vertical state; When the air quality sensor detects that the air quality meets the use requirements, it sends a signal to the control unit. After receiving the signal, the control unit converts the signal and sends it to the lifting push rod. The lifting push rod extends to drive the rotating connector to rotate 90 degrees clockwise, thereby driving the air pre-filter tube to rotate from a vertical state to a horizontal state; The maintenance mechanism comprises adsorption devices corresponding to the horizontal working state and the vertical working state of the air pre-filter tube respectively, the adsorption devices are fixed at corresponding positions of the vehicle body, and are adsorbed and connected with the air pre-filter tube in the horizontal working state and the vertical working state; The maintenance mechanism is connected to a maintenance control mechanism, which includes limit switches corresponding to the horizontal working state and the vertical working state of the air pre-filter tube, respectively, the limit switches are connected to the signal input end of the control unit, and the signal output end of the control unit is connected to the corresponding adsorption device; The adsorption device is an electromagnetic adsorption device; When the air pre-filter tube rotates from a horizontal state to a vertical state, it stops rotating when it touches the limit switch in the vertical state, and the adsorption device is energized at the same time, and the air pre-filter tube is adsorbed and fixed by the adsorption device; when the air pre-filter tube rotates from a vertical state to a horizontal state, it stops rotating when it touches the limit switch in the horizontal state, and the adsorption device is energized at the same time, and the air pre-filter tube is adsorbed and fixed by the adsorption device; In addition, when the air quality sensor detects that the air quality meets the requirements or does not meet the requirements, it sends a signal to the control unit. After receiving the signal, the control unit converts the signal and sends it to the lifting push rod. At the same time, it sends a signal to the corresponding adsorption device to cut off the power. The suction force of the adsorption device disappears, making it convenient for the lifting push rod to drive the air pre-filter tube to rotate.

2. The environmental adaptive pre-filtration system for an unmanned lawn mower according to claim 1, characterized in that: The air pre-filter tube comprises a tube body and an air pre-filter arranged at the end of the tube body.

3. The environmental adaptive pre-filtration system for an unmanned lawn mower according to claim 2, characterized in that: The pipe body is composed of a rigid pipe section and a corrugated pipe section. The rigid pipe section is connected to a soft connection structure, the corrugated pipe section is connected to an air prefilter, and a telescopic mechanism is arranged between the air prefilter and the rigid pipe section.

4. The environmental adaptive pre-filtration system for an unmanned lawn mower according to claim 3, characterized in that: The telescopic mechanism comprises a lifting push rod which is coaxially arranged with the tube body of the air pre-filter tube, and two ends of the lifting push rod are respectively connected to the air pre-filter and the rigid tube section.

Images