Automatic mower with unmanned navigation function

Abstract

The automatic mower comprises a base, an upper adjusting ring is rotatably arranged on the base, a fixing ring is fixedly arranged at the bottom of the base, a lower adjusting ring is slidably arranged in the fixing ring in an up-down limiting mode, a cutting assembly is arranged in the lower adjusting ring, and the upper adjusting ring is in transmission fit with the lower adjusting ring; a wedge-shaped block is arranged on the surface of the upper adjusting ring, a knocking assembly is arranged on the base, and the knocking assembly is in transmission fit with the wedge-shaped block; the knocking assembly comprises a sliding rod, a through hole is formed in the base, the sliding rod is arranged in the through hole in a limited sliding mode, and a first spring is fixedly arranged in the through hole; one end of the first spring is fixedly connected with the base, and the other end is fixedly connected with the sliding rod; a rolling ball is fixedly arranged at the top of the sliding rod and is in contact transmission fit with the wedge-shaped block, and a knocking hammer is fixedly arranged at the bottom of the sliding rod and is in knocking fit with the lower adjusting ring. In the process of adjusting the height of the cutting assembly by rotating the upper adjusting ring, the knocking assembly can automatically knock the lower adjusting ring.

Description

Technical Field

[0001] The utility model belongs to the technical field of lawn mowers, and in particular relates to an automatic lawn mower with unmanned navigation. Background Art

[0002] With the continuous advancement of computer technology and artificial intelligence technology, automatic lawn mowers similar to intelligent robots have begun to slowly enter people's lives. Automatic lawn mowers can automatically mow the user's lawn, freeing users from boring, time-consuming and laborious housework such as cleaning and lawn maintenance.

[0003] The existing patent with announcement number CN215223141U is specifically an automatic lawn mower with unmanned navigation, which is equipped with a rotating positioning column, a movable cylinder, auxiliary wheels, blades, etc. The staff can adjust the height of the movable cylinder by rotating the positioning column, thereby adjusting the height of the blades from the ground, and then adjusting the mowing height of the device.

[0004] Since the surface of grass is easy to adhere to impurities, the lawn mower is easy to contaminate the impurities on the surface of the grass on the blades during cutting, causing the accumulation of impurities on the surface of the blades. A large amount of impurities accumulated on the surface of the blades will affect the cutting effect of the blades and reduce the cutting efficiency of the lawn mower. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the utility model provides an automatic lawn mower with unmanned navigation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An automatic lawn mower with unmanned navigation comprises a base, an upper adjusting ring is rotatably arranged on the base, a fixing ring is fixedly arranged at the bottom of the base, a lower adjusting ring is slidably arranged in the fixing ring with upper and lower limit positions, a cutting assembly is arranged in the lower adjusting ring, and the upper adjusting ring and the lower adjusting ring are in transmission cooperation; a wedge block is arranged on the surface of the upper adjusting ring, and a knocking assembly is arranged on the base, and the knocking assembly and the wedge block are in transmission cooperation; the knocking assembly comprises a sliding rod, and a through hole is provided on the base, and the sliding rod is slidably arranged in the through hole with a limit position, and a first spring is fixedly arranged; one end of the first spring is fixedly connected to the base, and the other end is fixedly connected to the sliding rod; a rolling ball is fixedly arranged on the top of the sliding rod, and the rolling ball and the wedge block are in contact transmission cooperation, a knocking hammer is fixedly arranged on the bottom of the sliding rod, and the knocking hammer and the lower adjusting ring are in knocking cooperation.

[0008] Furthermore, a limiting ring is fixedly sleeved on the outer surface of the upper adjusting ring, and a first limiting groove is provided on the base to cooperate with the limiting ring for limiting sliding; a plurality of second sliding blocks are fixedly provided on the outer surface of the lower adjusting ring, and a plurality of second sliding grooves are provided on the inner wall of the fixed ring; the number of the second sliding blocks is equal to and corresponds to the second sliding grooves, and each second sliding block is limitedly slidably provided in the corresponding second sliding groove; a second spring is provided in each of the second sliding grooves, and the second spring is arranged along the sliding direction of the lower adjusting ring, the top of the second spring is fixedly connected to the bottom of the second sliding block, and the bottom of the second spring is fixedly connected to the fixed ring.

[0009] Furthermore, two arc-shaped first guide blocks of equal size and connected end to end are fixedly set at the bottom of the upper adjustment ring, and two arc-shaped second guide blocks of equal size and connected end to end are fixedly set at the top of the lower adjustment ring; the first guide blocks correspond to the second guide blocks one by one, each first guide block is adapted to the corresponding second guide block and each first guide block is slidably matched with the corresponding second guide block.

[0010] Furthermore, the cutting assembly includes a support plate, the support plate is fixedly arranged on the inner wall of the lower adjustment ring, and a key sleeve is arranged on the end of the support plate not connected to the lower adjustment ring for rotation in the vertical direction; a plurality of cutting knives are fixedly arranged on the outer surface of the key sleeve, and the plurality of cutting knives are distributed in a circular array along the central axis of the key sleeve.

[0011] Furthermore, a driving member for driving the cutting assembly to operate is provided on the base, and the driving member includes a support frame; the support frame is fixedly arranged on the top of the base, and a motor is fixedly installed on the support frame, and the output shaft of the motor is fixedly connected to the key shaft, and the key shaft is slidably inserted into the key sleeve.

[0012] Furthermore, a limit piece is provided between the upper adjusting ring and the base to prevent the upper adjusting ring from rotating; the limit piece includes a first slider, a first arc-shaped slide groove is provided at the top of the base along the outer contour of the circular hole, a plurality of second limit grooves are provided in the first slide groove along the groove direction of the first slide groove, and the first slider is slidably arranged; the first slider is fixedly connected to the upper adjusting ring, and the wedge block is fixedly arranged on the first slider; an electric push rod is fixedly installed on the top inner wall of the first slider, the telescopic shaft of the electric push rod is fixedly connected to the sliding plate, and a positioning block is fixedly arranged at the bottom of the sliding plate, and the bottom of the positioning block slides through the bottom of the first slider and is limitedly engaged with the second limit groove.

[0013] This application has the following beneficial effects:

[0014] When adjusting the height of the cutting assembly by turning the upper adjustment ring, the knocking assembly will automatically knock the lower adjustment ring, thereby shaking off the impurities attached to the surface of the cutting assembly, avoiding the influence of the impurities on the cutting assembly and improving the cutting efficiency of the lawn mower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This utility model Figure 1 A local enlarged schematic diagram of the middle A;

[0018] Figure 3 It is a schematic diagram of the base structure of the utility model;

[0019] Figure 4 This utility model Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0020] Figure 5 This utility model Figure 3 A partial enlarged schematic diagram of point C in the middle;

[0021] Figure 6 It is a schematic diagram of the internal structure of the through hole of the utility model;

[0022] Figure 7 This is a schematic diagram of the wedge block structure of the utility model;

[0023] Figure 8 It is a schematic diagram of the slide bar structure of the utility model.

[0024] Description of reference numerals:

[0025] 1. Base; 101. First limiting groove; 102. Fixed ring; 2. Connecting frame; 3. Unmanned navigation vehicle; 4. Motor; 5. Support frame; 6. Upper adjustment ring; 601. Limiting ring; 7. First slider; 701. Wedge block; 702. Positioning block; 8. First slide groove; 9. Second limiting groove; 10. Through hole; 11. Slide bar; 1101. Rolling ball; 1102. Hammer; 12. Key shaft; 13. Second slide groove; 14. Second slider; 15. Second spring; 16. Lower adjustment ring; 17. Key sleeve; 18. Support plate; 19. Cutting knife; 20. First spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-Figure 8 As shown, the technical solution adopted by the utility model is as follows: an automatic lawn mower with unmanned navigation, including a base 1 and an unmanned navigation vehicle 3, and the base 1 and the unmanned navigation vehicle 3 are connected by setting a connecting frame 2.

[0028] A circular hole is provided at the center of the top surface of the base 1. A fixing ring 102 is fixedly arranged at the bottom of the base 1, and the fixing ring 102 is arranged coaxially with the circular hole, and the radius of the fixing ring 102 is larger than the radius of the circular hole.

[0029] An upper adjusting ring 6 is rotatably arranged in the circular hole, a limiting ring 601 is fixedly sleeved on the outer surface of the upper adjusting ring 6 , and a first limiting groove 101 which is limitedly and slidably matched with the limiting ring 601 is opened on the base 1 .

[0030] A lower adjustment ring 16 is provided in the fixed ring 102 for limited sliding in the vertical direction, and a plurality of second sliders 14 are fixedly provided on the outer surface of the lower adjustment ring 16. A plurality of second slide grooves 13 are provided on the inner wall of the fixed ring 102, and the number of second sliders 14 and the second slide grooves 13 are equal and one-to-one corresponding, and each second slider 14 is limitedly slidably provided in the corresponding second slide groove 13. A second spring 15 is provided in each second slide groove 13, and the second spring 15 is arranged along the sliding direction of the lower adjustment ring 16. The top of the second spring 15 is fixedly connected to the bottom of the second slider 14, and the bottom of the second spring 15 is fixedly connected to the fixed ring 102.

[0031] The upper adjustment ring 6 and the lower adjustment ring 16 are in transmission cooperation. Two arc-shaped first guide blocks of equal size and connected end to end are fixedly arranged at the bottom of the upper adjustment ring 6, and two arc-shaped second guide blocks of equal size and connected end to end are fixedly arranged at the top of the lower adjustment ring 16. The first guide blocks correspond to the second guide blocks one by one, and each first guide block is adapted to the corresponding second guide block and each first guide block is slidably cooperated with the corresponding second guide block.

[0032] By rotating the upper adjusting ring 6 , the distance between the upper adjusting ring 6 and the lower adjusting ring 16 can be changed through the sliding of the first guide block and the second guide block, thereby changing the height of the lower adjusting ring 16 .

[0033] A cutting assembly is provided inside the lower adjustment ring 16, and the cutting assembly includes a support plate 18. The support plate 18 is fixedly provided on the inner wall of the lower adjustment ring 16, and a key sleeve 17 is provided on the end of the support plate 18 that is not connected to the lower adjustment ring 16 and is rotated in the vertical direction. The key sleeve 17 is coaxially provided with the lower adjustment ring 16, and a plurality of cutting knives 19 are fixedly provided on the outer surface of the key sleeve 17, and the plurality of cutting knives 19 are distributed in a circular array along the central axis of the key sleeve 17.

[0034] The change in the height of the lower adjustment ring 16 will drive the height of the cutting assembly to change synchronously, thereby adjusting the mowing height of the automatic lawn mower with unmanned navigation.

[0035] The base 1 is provided with a driving member for driving the cutting assembly to operate, and the driving member includes a support frame 5. The support frame 5 is fixedly arranged on the top of the base 1, and a motor 4 is fixedly installed on the support frame 5. The output shaft of the motor 4 is fixedly connected to the key shaft 12, and the key shaft 12 is slidably inserted into the key sleeve 17. The cutting knife 19 is driven by the motor 4 to rotate around the center of the key sleeve 17, thereby performing a cutting operation.

[0036] A stopper is provided between the upper adjusting ring 6 and the base 1 to prevent the upper adjusting ring 6 from rotating, and the stopper includes a first slider 7. An arc-shaped first slide groove 8 is provided at the top of the base 1 along the outer contour of the circular hole, and a plurality of second stopper grooves 9 are provided in the first slide groove 8 along the groove direction of the first slide groove 8, and a first slider 7 is slidably provided, and the first slider 7 is fixedly connected to the outer surface of the upper adjusting ring 6.

[0037] A wedge block 701 is fixedly arranged on the first slider 7, an electric push rod is fixedly installed on the top inner wall of the first slider 7, and a telescopic shaft of the electric push rod is fixedly connected to the sliding plate. A positioning block 702 is fixedly arranged on the bottom of the sliding plate, and the bottom of the positioning block 702 slides through the bottom of the first slider 7 and is engaged with the second limiting groove 9.

[0038] It is used to limit the rotation of the upper adjustment ring 6 during the cutting operation to prevent the height of the cutting assembly from changing during the cutting process. In addition, the arc length of the first slide groove 8 is less than the arc length of any arc-shaped guide block. This prevents the first guide block from being separated from the matching second guide block during the rotation of the upper adjustment ring 6. When the two are separated, the first guide block will be combined with the non-matching second guide block, which is not conducive to the reciprocating sliding of the first slider 7 in the first slide groove 8.

[0039] The base 1 is provided with a knocking assembly, which cooperates with the wedge block 701 in a contact transmission manner, and the knocking assembly includes a slide bar 11. A plurality of through holes 10 are provided on the top of the base 1, and the plurality of through holes 10 are distributed in a circular array along the central axis of the circular hole. In each through hole 10, both the slide bar 11 is provided with a limited sliding arrangement, and the first spring 20 is fixedly arranged. The slide bar 11 slides in the radial direction of the circular hole in the through hole 10. The first spring 20 is arranged along the radial direction of the circular hole, one end of the first spring 20 is fixedly connected to the base 1, and the other end of the first spring 20 is fixedly connected to one end of the slide bar 11 facing the circular hole.

[0040] A rolling ball 1101 is fixedly arranged on the top of the slide bar 11, and the rolling ball 1101 is in contact transmission cooperation with the wedge block 701. A knocking hammer 1102 is fixedly arranged on the bottom of the slide bar 11, and the knocking hammer 1102 is in knock cooperation with the lower adjustment ring 16, and the knocking hammer 1102 is always located between the fixed ring 102 and the lower adjustment ring 16.

[0041] Working principle: the base 1 is driven to move by the unmanned navigation vehicle 3, the motor 4 is started, the output shaft of the motor 4 drives the key shaft 12 to rotate, and the key shaft 12 drives the cutting knife 19 to rotate through the key sleeve 17 to perform the mowing operation.

[0042] In the initial state, the upper adjustment ring 6 and the lower adjustment ring 16 are in a completely fitted state. When the height of the cutting knife 19 needs to be adjusted, such as Figure 3 As shown, at this time, the first slider 7 is located at the leftmost side of the first slide groove 8, pushing the first slider 7 to slide clockwise in the first slide groove 8, so that the upper adjustment ring 6 rotates clockwise around the central axis of the circular hole. The rotation of the upper adjustment ring 6 causes the first guide block to slide on the corresponding second guide block. Since the upper adjustment ring 6 is restricted, the lower adjustment ring 16 moves downward under the cooperation of the first guide block and the second guide block, thereby reducing the height of the cutting assembly. During the downward movement of the lower adjustment ring 16, the second slider 14 is driven to slide in the second slide groove 13 in the direction of squeezing the second spring 15.

[0043] When the first sliding block 7 is pushed to slide counterclockwise in the first sliding groove 8, the cutting assembly can be controlled to rise by the elastic action of the second spring 15, so as to adjust the mowing height of the automatic lawn mower with unmanned navigation.

[0044] In addition, the upper adjusting ring 6 will drive the first slider 7 to slide in the first slide groove 8 during its rotation, and the height of the lower adjusting ring 16 will be different corresponding to the different positions of the first slider 7 in the first slide groove 8. When the first slider 7 slides to the top of the appropriate second limiting groove 9, the positioning block 702 is pushed by the telescopic shaft of the electric push rod to be inserted into the corresponding second limiting groove 9, thereby limiting the upper adjusting ring 6, which is used to limit the rotation of the upper adjusting ring 6 during the cutting operation, and prevent the height of the cutting assembly from changing during the cutting process.

[0045] In addition, when the first slider 7 slides in the first slide groove 8, the wedge block 701 will contact the ball 1101, thereby pushing the slide bar 11 to slide in the through hole 10 in a direction away from the circular hole, thereby controlling the knock hammer 1102 to slide in a direction away from the lower adjustment ring 16, and the first spring 20 is gradually stretched during this process. When the wedge block 701 is separated from the ball 1101, under the elastic action of the first spring 20, the knock hammer 1102 will slide in a direction close to the lower adjustment ring 16, thereby knocking the lower adjustment ring 16, thereby shaking off the impurities attached to the surface of the cutting component, avoiding the influence of the impurities on the cutting component, and improving the cutting efficiency of the lawn mower.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic lawn mower with unmanned navigation, characterized in that: The invention comprises a base (1), an upper adjusting ring (6) is rotatably arranged on the base (1), a fixing ring (102) is fixedly arranged at the bottom of the base (1), a lower adjusting ring (16) is slidably arranged in the fixing ring (102) in an upper and lower limit position, a cutting component is arranged in the lower adjusting ring (16), and the upper adjusting ring (6) and the lower adjusting ring (16) are in driving cooperation; a wedge block (701) is arranged on the surface of the upper adjusting ring (6), a knocking component is arranged on the base (1), and the knocking component and the wedge block (701) are in driving cooperation; the knocking component comprises a slide bar (11), A through hole (10) is provided on the base (1), in which a slide bar (11) is provided for limited sliding movement and a first spring (20) is fixedly provided; one end of the first spring (20) is fixedly connected to the base (1), and the other end is fixedly connected to the slide bar (11); a rolling ball (1101) is fixedly provided on the top of the slide bar (11), and the rolling ball (1101) and the wedge block (701) are in contact transmission cooperation; a knocking hammer (1102) is fixedly provided on the bottom of the slide bar (11), and the knocking hammer (1102) and the lower adjustment ring (16) are in knocking cooperation.

2. The automatic lawn mower with unmanned navigation according to claim 1, characterized in that: A limiting ring (601) is fixedly sleeved on the outer surface of the upper adjustment ring (6), and a first limiting groove (101) is provided on the base (1) and is limitedly slidably matched with the limiting ring (601); a plurality of second sliding blocks (14) are fixedly provided on the outer surface of the lower adjustment ring (16), and a plurality of second sliding grooves (13) are provided on the inner wall of the fixed ring (102); the number of the second sliding blocks (14) and the second sliding grooves (13) are equal and one-to-one corresponding, and each second sliding block (14) is limitedly slidably arranged in the corresponding second sliding groove (13); each second sliding groove (13) is provided with a second spring (15), and the second spring (15) is arranged along the sliding direction of the lower adjustment ring (16), the top of the second spring (15) is fixedly connected to the bottom of the second sliding block (14), and the bottom of the second spring (15) is fixedly connected to the fixed ring (102).

3. The automatic lawn mower with unmanned navigation according to claim 1, characterized in that: Two arc-shaped first guide blocks of equal size and connected end to end are fixedly arranged at the bottom of the upper adjustment ring (6), and two arc-shaped second guide blocks of equal size and connected end to end are fixedly arranged at the top of the lower adjustment ring (16); the first guide blocks correspond to the second guide blocks one by one, each first guide block is adapted to the corresponding second guide block, and each first guide block is slidably matched with the corresponding second guide block.

4. The automatic lawn mower with unmanned navigation according to claim 1, characterized in that: The cutting assembly comprises a support plate (18), the support plate (18) is fixedly arranged on the inner wall of the lower adjustment ring (16), and a key sleeve (17) is rotatably arranged on the end of the support plate (18) not connected to the lower adjustment ring (16) in a vertical direction; a plurality of cutting knives (19) are fixedly arranged on the outer surface of the key sleeve (17), and the plurality of cutting knives (19) are distributed in a circular array along the central axis of the key sleeve (17).

5. The automatic lawn mower with unmanned navigation according to claim 4, characterized in that: The base (1) is provided with a driving member for driving the cutting assembly to operate, and the driving member comprises a support frame (5); the support frame (5) is fixedly arranged on the top of the base (1), and a motor (4) is fixedly installed on the support frame (5); the output shaft of the motor (4) is fixedly connected to a key shaft (12), and the key shaft (12) is slidably inserted into a key sleeve (17).

6. The automatic lawn mower with unmanned navigation according to claim 4, characterized in that: A limit piece is provided between the upper adjusting ring (6) and the base (1) to prevent the upper adjusting ring (6) from rotating; the limit piece comprises a first sliding block (7); an arc-shaped first sliding groove (8) is provided at the top of the base (1) along the outer contour of the circular hole; a plurality of second limit grooves (9) are provided in the first sliding groove (8) along the groove direction of the first sliding groove (8), and the first sliding block (7) is slidably arranged; the first sliding block (7) is fixedly connected to the upper adjusting ring (6), and a wedge block (701) is fixedly arranged on the first sliding block (7); an electric push rod is fixedly installed on the inner wall of the top of the first sliding block (7); the telescopic shaft of the electric push rod is fixedly connected to the sliding plate; a positioning block (702) is fixedly arranged at the bottom of the sliding plate; the bottom of the positioning block (702) slides through the bottom of the first sliding block (7) and is limitedly engaged with the second limit groove (9).

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