阅读说明：本技术 一种方便避开障碍物的草坪修剪机 (Lawn trimmer convenient for avoiding obstacles ) 是由 黄翠 于 2020-12-24 设计创作，主要内容包括：本发明公开了一种方便避开障碍物的草坪修剪机,包括装置壳体,所述装置壳体的内部安装有主控制器和电机,电机的输出轴连接有伸缩杆,伸缩杆的下端连接有转动盘,转动盘的下端面连接有转动轴,转动轴的下端连接有切割刀片,固定柱的下端面上设置有盲孔,盲孔的顶面上安装有压力传感器,盲孔的顶部设置有传力板,传力板的上表面与压力传感器接触,所述盲孔中滑动配合连接有伸缩块,伸缩块与传力板通过复位弹簧连接,装置壳体上安装有报警器。通过伸缩块、复位弹簧、压力传感器、主控制器以及报警器的设置,遇到障碍物时,伸缩块向上运动并对复位弹簧进行压缩,压力传感器感受到压力后将信号反馈给主控制器,主控制器使得报警器发出警报。(The invention discloses a lawn trimmer convenient for avoiding obstacles, which comprises a device shell, wherein a main controller and a motor are arranged in the device shell, an output shaft of the motor is connected with a telescopic rod, the lower end of the telescopic rod is connected with a rotating disc, the lower end surface of the rotating disc is connected with a rotating shaft, the lower end of the rotating shaft is connected with a cutting blade, the lower end surface of a fixed column is provided with a blind hole, the top surface of the blind hole is provided with a pressure sensor, the top of the blind hole is provided with a force transmission plate, the upper surface of the force transmission plate is contacted with the pressure sensor, a telescopic block is connected in the blind hole in a sliding fit manner, the telescopic block is connected with the force transmission. Through the setting of flexible piece, reset spring, pressure sensor, main control unit and alarm, when meetting the barrier, flexible piece upward movement compresses reset spring, and pressure sensor experiences the back and gives main control unit with signal feedback after the pressure, and main control unit makes the alarm send out the police dispatch newspaper.)

1. The lawn trimmer capable of avoiding obstacles conveniently comprises a device shell (1) and is characterized in that a main controller (2) and a motor (5) are mounted inside the device shell (1), an output shaft of the motor (5) is connected with a telescopic rod (20), the lower end of the telescopic rod (20) is connected with a rotating disc (21), the lower end face of the rotating disc (21) is connected with a rotating shaft (22), the lower end of the rotating shaft (22) is connected with a cutting blade (23), a lantern ring (24) is sleeved outside the rotating disc (21), the upper end and the lower end of the lantern ring (24) are respectively connected with an upper circular plate (37) and a lower circular plate (38), annular grooves (35) are formed in the upper end face and the lower end face of the rotating disc (21), a plurality of balls (36) are connected in the annular grooves (35) in a rolling manner, a plurality of hemispherical grooves (39) are formed in the lower end face of the upper circular plate (37) and the upper end face, the device comprises a device shell (1), a hemispherical groove (39), balls (36) and a fixed column (26) and a second electric push rod (19) are fixedly connected to the bottom surface of the device shell (1), the lower end of the second electric push rod (19) is fixedly connected with an upper circular ring plate (37), a blind hole (28) is formed in the lower end face of the fixed column (26), a pressure sensor (31) is installed on the top surface of the blind hole (28), a force transmission plate (30) is arranged at the top of the blind hole (28), the upper surface of the force transmission plate (30) is in contact with the pressure sensor (31), the side face of the force transmission plate (30) is connected with the inner wall of the blind hole (28), a telescopic block (25) is connected to the blind hole (28) in a sliding fit manner, the telescopic block (25) is connected with the force transmission plate (30) through a return spring (29), an inclined plane is arranged at the left lower end of the telescopic block (25), and an alarm, alarm (3) and pressure sensor (31) all with main control unit (2) electric connection, the lower surface mounting of device casing (1) has wheel (27).

2. The lawn mower facilitating obstacle avoidance according to claim 1, wherein the bottom surface of the device housing (1) is provided with a through hole through which the telescopic rod (20) passes, and a gap is provided between an outer side surface of the telescopic rod (20) and an inner side surface of the through hole, the fixing post (26) passes through the bottom surface of the device housing (1), and a fixing portion of the second electric push rod (19) also passes through the bottom surface of the device housing (1).

3. The lawn mower convenient for avoiding obstacles as claimed in claim 2, wherein the telescopic end of the second electric push rod (19) is connected with the right half part of the upper circular ring plate (37), the guide shaft (34) is fixedly connected with the left half part of the upper circular ring plate (37), the guide shaft (34) is vertically arranged, the bottom surface of the device shell (1) is provided with a guide hole, and the outer side surface of the guide shaft (34) is connected with the inner side surface of the guide hole in a sliding fit manner.

4. A lawn mower as claimed in claim 2, wherein said telescoping pole (20) extends through a central hole in the upper annular plate (37), said rotating shaft (22) extends through a central hole in the lower annular plate (38), the center line of the upper annular plate (37) is aligned with the center line of the lower annular plate (38), and the center line of the lower annular plate (38) is aligned with the center line of the rotating disk (21).

5. A lawn mower as claimed in claim 4, wherein said annular groove (35) has a centre line collinear with the centre line of the rotatable disc (21), and a plurality of said balls (36) are arranged in a circumferential array about the centre line of the rotatable disc (21), the number of balls (36) being the same as the number of hemispherical grooves (39).

6. The lawn mower convenient for avoiding obstacles as claimed in claim 1, wherein a partition (6) is arranged inside the device housing (1), the partition (6) is positioned at the right side of the second electric push rod (19), the partition (6) is fixedly connected with the inner side wall of the device housing (1), the closed space at the right side of the partition (6) is a grass collecting chamber (13), and an exhaust fan (9) and a first electric push rod (16) are arranged inside the grass collecting chamber (13).

7. A lawn mower convenient for avoiding obstacles according to claim 6, characterized in that the exhaust fan (9) is installed at the upper right end of the grass collecting chamber (13), a horizontal pipe (8) is connected to the exhaust inlet of the exhaust fan (9), a vertical pipe (17) is connected to the left end of the horizontal pipe (8), an exhaust hood (18) is connected to the lower end of the vertical pipe (17), and the exhaust hood (18) is located below the device housing (1).

8. The lawn mower convenient for avoiding obstacles according to claim 7, wherein a grass falling port (14) is arranged on the lower side surface at the right end of the horizontal pipe (8), an intercepting net (11) is installed at the right end of the horizontal pipe (8), an air outlet of the exhaust fan (9) is connected with an air outlet pipe (10), the air outlet pipe (10) penetrates through the right side surface of the device shell (1), a sealing door (12) is arranged on the right side surface of the grass collecting chamber (13), the first electric push rod (16) is fixedly installed on the partition board (6), and a squeezing plate (15) is connected to the telescopic end of the first electric push rod (16).

9. A lawn mower convenient for avoiding obstacles as claimed in claim 1, wherein said telescoping block (25) is located at the left side of the cutting blade (23), a groove (32) is provided on the inclined surface of the telescoping block (25), a plurality of rollers (33) are installed in the groove (32), a cart handle (7) is fixedly connected to the device housing (1), and said motor (5) is fixedly installed on the top surface of the device housing (1).

Technical Field

The invention relates to the technical field of lawn trimming, in particular to a lawn trimmer capable of conveniently avoiding obstacles.

Background

The lawn trimmer is also called as a mower, a grass mower and the like, is a mechanical tool for trimming lawns, vegetations and the like, and consists of a motor and a blade, wherein the blade trims the lawns by utilizing the high-speed rotation of the motor, thereby saving the operation time of weeders and reducing a large amount of manpower resources.

When the lawn trimmer is used for trimming a lawn, stones and stones are often encountered, if an operator does not notice the stones, the blade is extremely easy to damage after contacting the stones, and even the situation that the blade is clamped possibly occurs, so that the motor is damaged, certain economic loss is caused to a user, and in addition, the current lawn trimmer cannot adjust the height of the blade and cannot meet the requirements of people.

Therefore, there is a need to provide a lawn trimmer that conveniently avoids obstacles, aiming at solving the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the lawn trimmer which can conveniently avoid the obstacles so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a lawn trimmer convenient for avoiding obstacles comprises a device shell, wherein a main controller and a motor are installed inside the device shell, an output shaft of the motor is connected with a telescopic rod, the lower end of the telescopic rod is connected with a rotating disc, the lower end surface of the rotating disc is connected with a rotating shaft, the lower end of the rotating shaft is connected with a cutting blade, a lantern ring is sleeved outside the rotating disc, the upper end and the lower end of the lantern ring are respectively connected with an upper circular plate and a lower circular plate, annular grooves are respectively arranged on the upper end surface and the lower end surface of the rotating disc, a plurality of balls are connected in the annular grooves in a rolling manner, a plurality of hemispherical grooves are respectively arranged on the lower end surface of the upper circular plate and the upper end surface of the lower circular plate and are in rolling connection with the balls, a fixing column and a second electric push rod are fixedly connected on the bottom surface of the device shell, be provided with the blind hole on the lower terminal surface of fixed column, install pressure sensor on the top surface of blind hole, the top of blind hole is provided with the biography power board, the upper surface and the pressure sensor contact of biography power board, the side of biography power board and the interior wall connection of blind hole, sliding fit is connected with flexible piece in the blind hole, flexible piece passes through reset spring with the biography power board and is connected, the left lower extreme of flexible piece is provided with the inclined plane, when reset spring does not receive external force, the latter half of flexible piece is located the outside of blind hole, the last surface mounting of device casing has the alarm, alarm and pressure sensor all with main control unit electric connection, pressure sensor is used for detecting pressure and gives main control unit with the signal transmission, main control unit is used for controlling the alarm, the lower surface mounting of.

As a further aspect of the present invention, a through hole is formed in the bottom surface of the device housing, the telescopic rod penetrates through the through hole, a gap is formed between the outer side surface of the telescopic rod and the inner side surface of the through hole, the fixing column penetrates through the bottom surface of the device housing, and the fixing portion of the second electric push rod also penetrates through the bottom surface of the device housing.

As a further scheme of the invention, the telescopic end of the second electric push rod is connected with the right half part of the upper circular ring plate, the left half part of the upper circular ring plate is fixedly connected with a guide shaft, the guide shaft is vertically arranged, the bottom surface of the device shell is provided with a guide hole, the outer side surface of the guide shaft is in sliding fit connection with the inner side surface of the guide hole, and the guide shaft is arranged to enable the upper circular ring plate to run more stably.

As a further scheme of the invention, the telescopic rod penetrates through a central hole in the upper circular ring plate, the rotating shaft penetrates through a central hole in the lower circular ring plate, the central line of the upper circular ring plate and the central line of the lower circular ring plate are arranged in a collinear manner, and the central line of the lower circular ring plate and the central line of the rotating disc are arranged in a collinear manner.

As a further scheme of the invention, the central line of the annular groove and the central line of the rotating disc are arranged in a collinear way, a plurality of balls are distributed in a circumferential array around the central line of the rotating disc, the number of the balls is the same as that of the hemispherical grooves, and the upper annular plate and the lower annular plate are rotationally connected with the rotating disc through the balls.

As a further scheme of the invention, a partition plate is arranged in the device shell and positioned on the right side of the second electric push rod, the partition plate is fixedly connected with the inner side wall of the device shell, a closed space on the right side of the partition plate is a grass collecting chamber, and an exhaust fan and a first electric push rod are arranged in the grass collecting chamber.

As a further scheme of the invention, the exhaust fan is arranged at the right upper end of the grass collecting chamber, a horizontal pipe is connected to an exhaust inlet of the exhaust fan, a vertical pipe is connected to the left end of the horizontal pipe, an exhaust hood is connected to the lower end of the vertical pipe, the exhaust hood is positioned below the device shell, and the exhaust hood is used for sucking cut grass into the grass collecting chamber.

As a further scheme of the invention, a grass falling port is arranged on the lower side surface at the right end of the horizontal pipe, an intercepting net is arranged at the right end of the horizontal pipe and used for preventing weeds from entering the exhaust fan, an air outlet pipe is connected with an air outlet pipe of the exhaust fan, the air outlet pipe penetrates through the right side surface of the device shell, a sealing door is arranged on the right side surface of the grass collecting chamber, the first electric push rod is fixedly arranged on the partition plate, an extrusion plate is connected to the telescopic end of the first electric push rod and used for compressing the weeds and pushing the compressed weed blocks out of the grass collecting chamber.

As a further scheme of the invention, the telescopic block is positioned on the left side of the cutting blade, a groove is formed on the inclined surface of the telescopic block, a plurality of roller shafts are installed in the groove, when the telescopic block contacts with an obstacle, the obstacle extrudes the roller shafts, so that the telescopic block moves upwards, a cart handrail is fixedly connected to the device shell, and the motor is fixedly installed on the top surface of the device shell.

In conclusion, the beneficial effects of the invention are as follows:

according to the invention, through the arrangement of the telescopic block, the return spring, the pressure sensor, the main controller and the alarm, when encountering obstacles such as stones, the telescopic block moves upwards and compresses the return spring, the pressure sensor senses the pressure and then feeds back a signal to the main controller, and the main controller enables the alarm to give an alarm; through the setting of second electric putter and rolling disc, cutting blade's height can be adjusted, and then be convenient for avoid lower barrier.

Drawings

Fig. 1 is a schematic front sectional view of a lawn mower for facilitating obstacle avoidance.

Fig. 2 is a schematic diagram of a three-dimensional structure of a rotary disk in a lawn mower for conveniently avoiding obstacles.

FIG. 3 is a diagram of the connection between the rotary disk and the collar of the lawn mower for facilitating obstacle avoidance.

Fig. 4 is a schematic view of a lower annular plate of the lawn mower for facilitating obstacle avoidance.

Fig. 5 is a schematic structural view of a telescopic block in the lawn mower for conveniently avoiding obstacles.

Fig. 6 is a partially enlarged schematic view of a portion a of fig. 1.

Reference numerals: 1-device shell, 2-main controller, 3-alarm, 5-motor, 6-clapboard, 7-cart handrail, 8-horizontal pipe, 9-exhaust fan, 10-air outlet pipe, 11-intercepting net, 12-sealing door, 13-grass collecting chamber, 14-grass falling port, 15-extrusion plate, 16-first electric push rod, 17-vertical pipe, 18-air suction hood, 19-second electric push rod, 20-expansion rod, 21-rotating disc, 22-rotating shaft, 23-cutting blade, 24-lantern ring, 25-expansion block, 26-fixed column, 27-wheel, 28-blind hole, 29-reset spring, 30-force transmission plate, 31-pressure sensor, 32-groove, 33-roller shaft, 34-guide shaft, 35-annular groove, 36-ball, 37-upper annular plate, 38-lower annular plate and 39-hemispherical groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1 to 6, a lawn trimmer convenient for avoiding obstacles comprises a device housing 1, a main controller 2 and a motor 5 are installed inside the device housing 1, an output shaft of the motor 5 is connected with a telescopic rod 20, the lower end of the telescopic rod 20 is connected with a rotary disc 21, the lower end surface of the rotary disc 21 is connected with a rotary shaft 22, the lower end of the rotary shaft 22 is connected with a cutting blade 23, the outer side of the rotary disc 21 is sleeved with a lantern ring 24, the upper end and the lower end of the lantern ring 24 are respectively connected with an upper circular plate 37 and a lower circular plate 38, the upper end surface and the lower end surface of the rotary disc 21 are respectively provided with an annular groove 35, the annular groove 35 is internally connected with a plurality of balls 36 in a rolling manner, the lower end surface of the upper circular plate 37 and the upper end surface of the lower circular plate 38 are respectively provided with a plurality of hemispherical grooves 39, the hemispherical grooves 39 are connected with the balls 36 in a rolling manner, the lower end of the second electric push rod 19 is fixedly connected with an upper annular plate 37, a blind hole 28 is arranged on the lower end face of the fixed column 26, a pressure sensor 31 is arranged on the top face of the blind hole 28, a force transmission plate 30 is arranged on the top of the blind hole 28, the upper surface of the force transmission plate 30 is in contact with the pressure sensor 31, the side face of the force transmission plate 30 is connected with the inner wall of the blind hole 28, an expansion block 25 is connected in the blind hole 28 in a sliding fit manner, the expansion block 25 is connected with the force transmission plate 30 through a return spring 29, the left lower end of the expansion block 25 is provided with an inclined plane, when the return spring 29 is free of external force, the lower half part of the expansion block 25 is positioned outside the blind hole 28, an alarm 3 is arranged on the upper surface of the device shell 1, the alarm 3 and the pressure sensor 31 are both electrically connected with the main controller 2, the pressure sensor 31 is used, the lower surface of the device case 1 is mounted with wheels 27.

The bottom surface of the device shell 1 is provided with a through hole, the telescopic rod 20 penetrates through the through hole, a gap is formed between the outer side surface of the telescopic rod 20 and the inner side surface of the through hole, the fixed column 26 penetrates through the bottom surface of the device shell 1, and the fixed part of the second electric push rod 19 also penetrates through the bottom surface of the device shell 1.

The flexible end of second electric putter 19 is connected with the right half of last ring plate 37, goes up fixedly connected with guiding axle 34 on the left half of last ring plate 37, and guiding axle 34 is vertical to be set up, be provided with the guiding hole on the bottom surface of device casing 1, the lateral surface of guiding axle 34 is connected with the medial surface sliding fit of guiding hole, and the setting of guiding axle 34 makes the operation of going up ring plate 37 more steady.

The telescopic rod 20 penetrates through a central hole in the upper circular ring plate 37, the rotating shaft 22 penetrates through a central hole in the lower circular ring plate 38, the central line of the upper circular ring plate 37 and the central line of the lower circular ring plate 38 are arranged in a collinear manner, and the central line of the lower circular ring plate 38 and the central line of the rotating disc 21 are arranged in a collinear manner.

The central line of the annular groove 35 is collinear with the central line of the rotating disc 21, a plurality of the balls 36 are distributed in a circumferential array around the central line of the rotating disc 21, the number of the balls 36 is the same as that of the hemispherical grooves 39, and the upper annular plate 37 and the lower annular plate 38 are rotatably connected with the rotating disc 21 through the balls 36.

Example 2

Referring to fig. 1 to 6, in this embodiment, a partition 6 is disposed inside the device housing 1, the partition 6 is located at the right side of the second electric push rod 19, the partition 6 is fixedly connected to the inner side wall of the device housing 1, the enclosed space at the right side of the partition 6 is a grass collecting chamber 13, and an exhaust fan 9 and a first electric push rod 16 are disposed inside the grass collecting chamber 13.

The utility model discloses a grass cutting device, including device casing 1, air exhauster 9, horizontal pipe 8, vertical pipe 17, air suction cover 18 and the grass that will cut is arranged in the upper right end department of collection grass room 13, is connected with horizontal pipe 8 on the inlet scoop of air exhauster 9, and the left end of horizontal pipe 8 is connected with vertical pipe 17, and the lower extreme of vertical pipe 17 is connected with air suction cover 18, air suction cover 18 is located device casing 1's below, and air suction cover 18 is arranged in.

The downside of 8 right-hand members of horizontal pipe end department is provided with grass mouth 14 that falls, and the right-hand member department of horizontal pipe 8 installs interception net 11, and interception net 11 is used for blockking during weeds get into air exhauster 9, the air outlet of air exhauster 9 is connected with out tuber pipe 10, goes out tuber pipe 10 and runs through the right flank of device casing 1, the right flank of collection grass room 13 is provided with sealing door 12, 16 fixed mounting of first electric putter is on baffle 6, and the flexible of first electric putter 16 is served and is connected with stripper plate 15, and stripper plate 15 is used for compressing weeds to release collection grass room 13 with the weeds piece after the compression.

The flexible piece 25 is located cutting blade 23's left side, is provided with recess 32 on the inclined plane of flexible piece 25, installs several roller 33 in the recess 32, and when flexible piece 25 contacted the barrier, the barrier extruded roller 33, and then made flexible piece 25 upward movement, fixedly connected with shallow handrail 7 on the device casing 1, motor 5 fixed mounting is on the top surface of device casing 1, and other structures of this embodiment and connected mode are the same with embodiment 1 completely.

The working process of the embodiment of the invention is as follows: firstly, the lawn mower is pushed to a lawn, the second electric push rod 19 is started, the height of the upper annular plate 37 is changed, the height of the cutting blade 23 is adjusted, then the motor 5 is started, the cutting blade 23 starts to rotate and cuts grass on the lawn, the exhaust fan 9 is started at the same time, the cut grass is sucked into the vertical pipe 17 by the air suction cover 18, the cut grass falls into the grass collecting chamber 13 from the grass falling opening 14, the first electric push rod 16 is started after a period of time, the grass in the grass collecting chamber 13 is compressed into blocks by the extrusion plate 15, and finally the sealing door 12 is opened, so that the compressed grass blocks can be taken out. In the course of the work, when having barriers such as stone in the square grass clump, the stone is at first extrudeed flexible piece 25, flexible piece 25 upwards moves and compresses reset spring 29, biography power board 30 receives reset spring 29's elasticity and gives pressure sensor 31 with power transmission, pressure sensor 31 gives main control unit 2 with signal feedback, main control unit 2 makes alarm 3 send out the police dispatch newspaper, the staff just can in time rise cutting blade 23, avoid the stone to damage cutting blade 23.

The present invention has been described in detail with reference to the preferred embodiments thereof, and it should be understood that the invention is not limited thereto, but is intended to cover modifications, equivalents, and improvements within the spirit and scope of the present invention.