Mower obstacle avoidance device for Korla pears

Abstract

The hay mower obstacle avoidance device comprises a shell, a connecting block, a supporting block and a mowing device, the obstacle avoidance device is arranged, a detection block drives a movable rod to move, the movable rod drives a limiting block to move, the limiting block extrudes a spring when moving, the extrusion force of the spring is transmitted to a pressure sensor, and the pressure sensor is used for detecting the mowing device. An infrared sensor detects whether fruit trees exist or not; a motor drives a screw to rotate; the screw rotates to drive a movable block to move; the movable block moves to drive a supporting block to move through a connecting rod; the connecting rod rotates to drive the supporting block to rotate, and through the arrangement, whether obstacles exist in a mowing area or not can be rapidly judged, so that the mowing device is driven to move or rotate, the mowing device is prevented from being damaged, fruit trees are prevented from being damaged, and the mowing safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Korla fragrant pear planting, and specifically relates to an obstacle avoidance device for a lawn mower for Korla fragrant pears. Background Technique

[0002] Korla fragrant pears are special products of Xinjiang Uygur Autonomous Region. Korla fragrant pears are known as "treasures among pears" and "prince among fruits" because of their pleasing color, sweet and smooth taste, strong fragrance, thin skin and fine flesh, crispy and refreshing taste, abundant juice and few residues, easy to break when falling to the ground, easy to melt in the mouth, durable storage, and rich nutrition. Because of the unique position and important influence of Korla fragrant pears in economic development and social life, Korla City is also proudly called the "Pear City" by local people. A lawn mower is a mechanical tool used for trimming lawns, vegetation, etc. It is composed of a cutter head, an engine, walking wheels, a walking mechanism, blades, a handrail, and a control part. The blades use the high-speed rotation of the engine to greatly improve the speed, saving the working time of weeding workers and reducing a large amount of human resources.

[0003] For example, the publication number CN211745366U discloses "An orchard lawn mower". In this device, it includes an anti-collision plate, a mounting plate and a base. A servo motor is installed at the middle position of the top of the base, and a first rotating shaft is installed at the output end of the servo motor. The first rotating shaft passes through the base and is equipped with an L-shaped rod, a first bearing, a servo motor, a first helical gear, a first rotating shaft, a second helical gear, a nut and a screw rod. When in use, the servo motor can be controlled to start, so that the servo motor drives the first helical gear to rotate clockwise or counterclockwise through the first rotating shaft. The first helical gear drives the screw rod to rotate together through the second helical gear, so that the nut outside the screw rod moves simultaneously towards both ends or towards the middle position through the thread. The nut drives the mounting plate to move together through the L-shaped rod, and the cutting position of the cutting tooth disc can be adjusted, so that the device can cut weeds in different ranges and is more convenient to use.

[0004] Although the above lawn mower has certain advantages in mowing efficiency, it still has certain drawbacks:

[0005] During the process of using the above mowing device to remove weeds in the Korla fragrant pear orchard, stones will be mixed into the weeds. If mowing directly, it is easy for the stones to damage the mowing device, thereby affecting the use of the mowing device and further affecting the mowing efficiency. At the same time, when mowing in the orchard, the weeds are mixed among the fruit trees, and it is easy to hit the fruit trees during mowing, causing damage to the fruit trees and further affecting the growth of the fruit trees, thereby affecting the harvest of Korla fragrant pears. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies in the prior art, the utility model provides a lawn mower obstacle avoidance device for Korla fragrant pear, which solves the above-mentioned problems.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: a lawn mower obstacle avoidance device for Korla pear, comprising a shell, a connecting block, a supporting block, a mowing device and an obstacle avoidance device, the connecting block is provided with two groups, and both are fixed to the front end of the shell, the supporting block is arranged at the rear end of the shell, the mowing device is installed at the left end of the supporting block, the obstacle avoidance device is arranged at the rear end of the supporting block, the obstacle avoidance device comprises a detection block, a movable rod, a detection groove, a limit block, a spring, a pressure sensor, an infrared sensor and an adjustment mechanism, the detection block is arranged at the rear end of the support block, the movable rod is fixed to the rear end of the detection block and extends forward to the interior of the detection groove, the detection groove is arranged at the inner rear end of the support block, the limit block is fixed to the front end of the movable rod, the spring is fixed to the front end of the limit block, the pressure sensor is installed at the inner front end of the detection groove, the infrared sensor is installed at the top of the support block, and the adjustment mechanism is arranged inside the shell.

[0010] Preferably, the adjustment mechanism includes a motor 1, a screw, a movable block and a rotating mechanism, the motor 1 is installed at the right end of the shell, the screw is arranged at the inner left end and the inner right end of the shell, and the right end of the screw is transmission-connected to the motor 1 through a coupling, the movable block is arranged on the outside of the screw, and the rotating mechanism is arranged at the rear end of the movable block.

[0011] Preferably, the rotating mechanism includes a connecting rod, a support plate, a worm wheel, a worm and motor 2, the connecting rod is arranged at the rear end of the movable block, and the connecting rod is fixed to the right side of the front end of the support block, the support plate is fixed to the rear end of the movable block, and the top end of the support plate extends upward to the top end of the shell, the worm wheel is fixed to the outside of the connecting rod, the worm is arranged at the inner top end and the inner bottom end of the support plate, and the top end of the worm is connected to the output shaft of motor 2 through a coupling, and motor 2 is installed at the top end of the support plate.

[0012] Preferably, a notch is provided at the rear end of the detection slot, and the width of the limit block is larger than the notch at the rear end of the detection slot. This arrangement prevents the movable rod from moving out of the detection slot and causing the movable rod to fall off.

[0013] Preferably, the inner wall of the movable block is threaded and threadedly connected to the screw rod, so that the movable block is driven to move when the screw rod rotates.

[0014] Preferably, the support plate is arranged in an inverted "U" shape, through which the support plate will not affect the rotation of the connecting rod.

[0015] Preferably, the right end of the worm gear meshes with the worm. With this arrangement, when the worm rotates, it can drive the worm gear to rotate.

[0016] Preferably, a notch is provided at the top of the housing. With this arrangement, the housing is prevented from affecting the movement of the support plate.

[0017] (III) Advantageous Effects

[0018] The present utility model provides an obstacle avoidance device for a lawn mower used for Korla fragrant pears. It has the following advantageous effects: By providing an obstacle avoidance device, the detection block is arranged at the rear end of the mowing device. The detection block drives the movable rod to move, and the movable rod drives the limit block to move. When the limit block moves, it squeezes the spring, and the force of the spring squeeze is transmitted to the pressure sensor, thereby determining whether there are obstacles such as stones in front. The infrared sensor is used to detect whether there are fruit trees. Motor 1 drives the screw rod to rotate. When the screw rod rotates, it drives the movable block to move. When the movable block moves, it drives the support block to move through the connecting rod. The movement of the support block drives the mowing device to move. Motor 2 drives the worm to rotate. When the worm rotates, it drives the worm gear to rotate. The rotation of the worm gear drives the connecting rod to rotate. The rotation of the connecting rod drives the support block to rotate, thereby driving the mowing device to rotate. With this arrangement, it is possible to quickly determine whether there are obstacles in the mowing area, thereby driving the mowing device to move or rotate, avoiding damage to the mowing device, and at the same time preventing damage to the fruit trees, improving the safety of mowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of the present utility model;

[0020] Figure 2 is a top view of the structure of the present utility model;

[0021] Figure 3 is a top view of the structure of the obstacle avoidance device in the present utility model;

[0022] Figure 4 is a top view of the structure of the adjustment mechanism in the present utility model;

[0023] Figure 5 is a top view of the structure of the rotation mechanism in the present utility model;

[0024] Figure 6 is a side view of the structure of the rotation mechanism in the present utility model.

[0025] In the figure: housing - 1, connecting block - 2, support block - 3, mowing device - 4, obstacle avoidance device - 5, detection block - 51, movable rod - 52, detection groove - 53, limit block - 54, spring - 55, pressure sensor - 56, infrared sensor - 57, adjustment mechanism - 58, motor one - 581, screw rod - 582, movable block - 583, rotation mechanism - 584, connecting rod - 5841, support plate - 5842, worm gear - 5843, worm - 5844, motor two - 5845. Detailed implementation mode

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-3 , the present invention provides a technical solution for an obstacle avoidance device of a lawn mower for Korla fragrant pears: an obstacle avoidance device of a lawn mower for Korla fragrant pears, including a housing 1, a connecting block 2, a support block 3, a mowing device 4 and an obstacle avoidance device 5. There are two groups of connecting blocks 2, and both are fixed to the front end of the housing 1. The support block 3 is arranged at the rear end of the housing 1. The mowing device 4 is installed at the left end of the support block 3. The obstacle avoidance device 5 is arranged at the rear end of the support block 3. The obstacle avoidance device 5 includes a detection block 51, a movable rod 52, a detection groove 53, a limit block 54, a spring 55, a pressure sensor 56, an infrared sensor 57 and an adjustment mechanism 58. The detection block 51 is arranged at the rear end of the support block 3. The movable rod 52 is fixed to the rear end of the detection block 51 and extends forward into the interior of the detection groove 53. The detection groove 53 is arranged at the inner rear end of the support block 3. The limit block 54 is fixed to the front end of the movable rod 52. The spring 55 is fixed to the front end of the limit block 54. The pressure sensor 56 is installed at the inner front end of the detection groove 53. The infrared sensor 57 is installed at the top of the support block 3. The adjustment mechanism 58 is arranged inside the housing 1. There is a notch at the rear end of the detection groove 53, and the width of the limit block 54 is greater than the size of the notch at the rear end of the detection groove 53. Through this setting, it is avoided that the movable rod 52 moves out of the detection groove 53 and causes the movable rod 52 to fall off. There is a notch at the top of the housing 1. Through this setting, it is avoided that the housing 1 affects the movement of the support plate 5842.

[0028] Please refer to Figures 4-6The utility model provides a technical solution of an obstacle avoidance device for a lawn mower used for Korla fragrant pear: an obstacle avoidance device for a lawn mower used for Korla fragrant pear, an adjusting mechanism 58 comprises a motor 1 581, a screw 582, a movable block 583 and a rotating mechanism 584, the motor 1 581 is mounted on the right end of the housing 1, the screw 582 is arranged at the inner left end and the inner right end of the housing 1, and the right end of the screw 582 is transmission-connected with the motor 1 581 through a coupling, the movable block 583 is arranged on the outer side of the screw 582, the rotating mechanism 584 is arranged at the rear end of the movable block 583, the rotating mechanism 584 comprises a connecting rod 5841, a support plate 5842, a worm wheel 5843, a worm 5844 and a motor 2 5845, the connecting rod 5841 is arranged at the rear end of the movable block 583, and the connecting rod 5841 is fixed to the front right side of the support block 3, and the support plate 5842 is fixed to The rear end of the movable block 583 and the top end of the support plate 5842 extend upward to the top end of the shell 1, the worm wheel 5843 is fixed to the outside of the connecting rod 5841, the worm 5844 is arranged at the inner top and inner bottom of the support plate 5842, and the top end of the worm 5844 is connected to the output shaft of the motor 2 5845 through a coupling, and the motor 2 5845 is installed on the top end of the support plate 5842. The inner wall of the movable block 583 is threaded and threadedly connected with the screw 582. Through this arrangement, the movable block 583 is driven to move when the screw 582 rotates. The support plate 5842 is arranged in an inverted "U" shape. Through this arrangement, the support plate 5842 will not affect the rotation of the connecting rod 5841. The right end of the worm wheel 5843 and the worm 5844 are meshed with each other. Through this arrangement, the worm wheel 5843 can be driven to rotate when the worm 5844 rotates.

[0029] Here’s how it works:

[0030] First, before use, the connecting block 2 is placed at the front end of the tractor, and the mowing device 4 is brought to the weeds in the Korla pear orchard by the tractor, waiting for mowing;

[0031] Second, when in use, the mowing device 4 is started, and the housing 1 is pushed by a tractor to move. When the housing 1 moves, the supporting block 3 is driven to move through the connecting rod 5841. When the supporting block 3 moves, the mowing device 4 is driven to move to mow the weeds in the orchard.

[0032] Third, during the process of moving and mowing, the detection block 51 is used to detect stones in the weeds to prevent the stones from damaging the mowing device. If there are stones, the stones will push the detection block 51, and the detection block 51 will push the movable rod 52 to move. When the movable rod 52 moves, it will push the limit block 54 to move. When the limit block 54 moves, it will squeeze the spring 55. The pressure generated by the spring 55 is transmitted to the pressure sensor 56, so that it can be judged that there are stones in front.

[0033] Fourth, when a stone is detected ahead, start the second motor 5845 to drive the worm 5844 to rotate by the second motor 5845. When the worm 5844 rotates, it drives the worm wheel 5843 to rotate. When the worm wheel 5843 rotates, it drives the connecting rod 5841 to rotate. When the connecting rod 5841 rotates, it drives the support block 3 to rotate. When the support block 3 rotates, it drives the mowing device 4 to rotate, so that the mowing device 4 bypasses the stone. The grass that has not been mowed when bypassing the stone will be manually removed separately later. After bypassing, control the rotation of the support block 3 by the second motor 5845 to make the mowing device 4 mow the weeds again;

[0034] Fifth, detect the fruit tree through the infrared sensor 57. When approaching the fruit tree, start the first motor 581 to drive the screw 582 to rotate by the first motor 581. When the screw 582 rotates, it drives the movable block 583 to move. When the movable block 583 moves, it drives the connecting rod 5841 to move. When the connecting rod 5841 moves, it drives the support block 3 to move. When the support block 3 moves, it drives the mowing device 4 to move, so that the mowing device 4 bypasses the fruit tree. After bypassing the fruit tree, control the support block 3 to move left by the first motor 581 to make the support block 3 drive the mowing device 4 to move back to the original position to continue mowing elsewhere.

[0035] The control mode of the present utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the art, and the present utility model is mainly used to protect the mechanical device, so the control mode and wiring layout of the present utility model will not be explained in detail.

[0036] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, and the power supply is also common knowledge in the art. The present utility model is mainly used to protect the mechanical device, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0037] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A lawn mower obstacle avoidance device for Korla fragrant pear, comprising a housing (1), a connecting block (2), a supporting block (3) and a mowing device (4), wherein the connecting block (2) is provided with two groups and both are fixed to the front end of the housing (1), the supporting block (3) is arranged at the rear end of the housing (1), and the mowing device (4) is installed at the left end of the supporting block (3); It is characterized in that: The invention also comprises an obstacle avoidance device (5), wherein the obstacle avoidance device (5) is arranged at the rear end of the support block (3), and comprises a detection block (51), a movable rod (52), a detection slot (53), a limit block (54), a spring (55), a pressure sensor (56), an infrared sensor (57) and an adjustment mechanism (58). The detection block (51) is arranged at the rear end of the support block (3), the movable rod (52) is fixed to the rear end of the detection block (51) and extends forward to the inside of the detection slot (53), the detection slot (53) is arranged at the rear end of the inside of the support block (3), the limit block (54) is fixed to the front end of the movable rod (52), the spring (55) is fixed to the front end of the limit block (54), the pressure sensor (56) is installed at the front end of the inside of the detection slot (53), the infrared sensor (57) is installed at the top end of the support block (3), and the adjustment mechanism (58) is arranged inside the shell (1).

2. The mower obstacle avoidance device for Korla fragrant pears according to claim 1, characterized in that: The adjusting mechanism (58) comprises a motor (581), a screw (582), a movable block (583) and a rotating mechanism (584); the motor (581) is mounted on the right end of the housing (1); the screw (582) is arranged at the inner left end and the inner right end of the housing (1); the right end of the screw (582) is transmission-connected to the motor (581) via a coupling; the movable block (583) is arranged on the outer side of the screw (582); and the rotating mechanism (584) is arranged at the rear end of the movable block (583).

3. The mower obstacle avoidance device for Korla fragrant pears according to claim 2, characterized in that: The rotating mechanism (584) comprises a connecting rod (5841), a support plate (5842), a worm wheel (5843), a worm (5844) and a second motor (5845); the connecting rod (5841) is arranged at the rear end of the movable block (583), and the connecting rod (5841) is fixed to the right side of the front end of the support block (3); the support plate (5842) is fixed to the rear end of the movable block (583), and the top end of the support plate (5842) extends upward to the top end of the housing (1); the worm wheel (5843) is fixed to the outside of the connecting rod (5841), the worm (5844) is arranged at the inner top end and the inner bottom end of the support plate (5842), and the top end of the worm (5844) is connected to the output shaft of the second motor (5845) through a coupling; the second motor (5845) is installed at the top end of the support plate (5842).

4. The mower obstacle avoidance device for Korla fragrant pears according to claim 1, characterized in that: The rear end of the detection slot (53) is provided with a notch, and the width of the limit block (54) is larger than the size of the notch at the rear end of the detection slot (53).

5. The mower obstacle avoidance device for Korla fragrant pears according to claim 2, characterized in that: The inner wall of the movable block (583) is threaded and is threadedly connected to the screw rod (582).

6. The mower obstacle avoidance device for Korla fragrant pears according to claim 3, characterized in that: The support plate (5842) is arranged in an inverted "U" shape.

7. The obstacle avoidance device for a Korla fragrant pear mower according to claim 3, characterized in that: The right end of the worm gear (5843) meshes with the worm (5844).

Images