Bow support type grass cutter head, grass cutting module and unmanned grass cutting vehicle

Abstract

The present invention provides a bow-supported grass trimming head, a grass trimming module, and an unmanned grass trimming vehicle. The bow-supported grass trimming head includes a motor, a grass trimming head, and a multi-joint bow support. The multi-joint bow support comprises a motor connector with a fastener at one end of the bow support body, and at least one shaft connection lug is provided on a section of the bow support body near the motor connector. The multi-joint bow support is detachably connected to the motor housing via the motor connector, and one end of the motor's rotating shaft is fixedly connected to the grass trimming head. The grass trimming module is formed by hingedly connecting the bow-supported grass trimming head to one end of a traction frame via the shaft connection lug. The unmanned grass trimming vehicle comprises a grass trimming module hingedly connected to the unmanned vehicle, and connected to the power supply module of the unmanned vehicle via wires. The present invention facilitates traction and intelligent control, has adjustable grass trimming height, can adjust grass trimming and passing angles to near-optimal values according to real-time terrain fluctuations, has a self-protective grass trimming head, and has a simple structure and reliable operation.

Description

Technical Field

[0001] The present invention relates to the field of traction lawn mowers, and more particularly, to a bow support type grass head, a grass cutting module having the bow support type grass head, and a grass cutting unmanned vehicle having the grass cutting module. Background Art

[0002] In the prior art, during the operation of a lawn mower on a complex undulating plot, it is easy that the grass cutting and passing angles are difficult to adapt to the real-time terrain undulation changes, and it is easy to be stuck by the undulating plot or hit the grass head, thus affecting the passability and the reliability of the grass head.

[0003] Currently, there is no traction type grass head that can adjust the grass cutting and passing angles according to the real-time terrain and has self-protection, nor is there a grass cutting module having such a grass head and facilitating intelligent control for unmanned vehicle traction, nor an unmanned vehicle having such a grass cutting module. Summary of the Invention

[0004] The object of the present invention is to provide a bow support type grass head, a grass cutting module having the bow support type grass head, and a grass cutting unmanned vehicle having the grass cutting module, which are convenient for traction and intelligent control, have adjustable grass cutting height, can adjust the grass cutting and passing angles close to reasonable values according to the real-time terrain undulation, have self-protection for the grass head, and are simple and reliable.

[0005] To achieve the above object, an embodiment of the present invention provides a bow support type grass head, which includes a motor, a grass head, and a multi-joint bow support. One end of the multi-joint bow support is detachably connected to the motor housing, and one end of the rotating shaft of the motor is fixedly connected to the grass head.

[0006] Preferably, the multi-joint bow support is formed by providing a motor joint with a fastener at one end of the bow support body and at least one shaft connecting ear seat on a section of the bow support body close to the motor joint.

[0007] Preferably, a first sprocket is further provided on the shaft connecting ear seat. One side of the first sprocket is fixedly connected to one side of the shaft connecting ear seat, and the central hole of the first sprocket is concentric with a hole on the shaft connecting ear seat.

[0008] An embodiment of the present invention further provides a grass cutting module, which includes a traction frame and the above-mentioned bow support type grass head. The bow support type grass head is axially hinged to one end of the traction frame through a hole on the shaft connecting ear seat.

[0009] Preferably, the traction frame is formed by connecting one end of a trailer connector to the middle of the frame body.

[0010] Preferably, an L-shaped walking frame is further provided on the frame body. The L-shaped walking frame includes an L-shaped bracket, universal wheels, and spring pins. The middle hole of the L-shaped bracket is movably connected to the frame body through a shaft. The universal wheels are connected to one end of the L-shaped bracket, and the spring pins are connected to the other end of the L-shaped bracket and the end where the universal wheels are located.

[0011] Preferably, the towing frame includes high-low multi-hole connectors, long connecting rods, and short connecting rods. The number of long connecting rods is equal to that of short connecting rods. The holes in the upper part of the high-low multi-hole connectors are hinged to one end of the long connecting rods through shafts, and the holes in the lower part are hinged to one end of the short connecting rods through shafts. The other end of the long connecting rod can be connected to the hole at the upper end of the shaft connecting ear seat through a shaft, and the other end of the short connecting rod can be connected to the hole at the lower end of the shaft connecting ear seat through a shaft.

[0012] Preferably, the towing frame is formed by hinging one end of a double-end connecting rod to a trailer connector through a shaft.

[0013] Preferably, a second sprocket with a chain is further provided on the towing frame. One side of the second sprocket is fixedly connected to the trailer connector, and the chain is used to connect the second sprocket on the towing frame and the first sprocket on the shaft connecting ear seat.

[0014] An embodiment of the present invention further provides a grass cutting unmanned vehicle, which includes an unmanned vehicle and the above-mentioned grass cutting module. The grass cutting module is movably connected to the rear of the unmanned vehicle through one end of the towing frame, and the motor of the bow-type grass cutting head on the grass cutting module is connected to the power supply module on the unmanned vehicle through a wire.

[0015] Due to the above technical solutions, the advantages of the present invention are as follows:

[0016] 1. The grass cutting head of the present invention can adjust the grass cutting angle according to the undulation of the real-time terrain where the multi-joint bow support is located below it, and the grass cutting height consistency is better.

[0017] 2. The present invention can adjust the connection position between the motor and the multi-joint bow support, so as to realize the adjustment of the grass cutting height.

[0018] 3. The grass cutting head of the present invention is connected above the multi-joint bow support for grass cutting operations. Under the adjustment and protection of the multi-joint bow support, it is not easy to be stuck by undulating plots or hit the grass cutting head, and the passability and reliability and durability are better.

[0019] 4. The present invention has no complex transmission structure, is simple and reliable, and the modular design can realize the intelligent control of grass cutting operations by simply hinging and connecting the power supply module of the unmanned vehicle through a wire. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 Schematic structural diagram of Example 1 of the bow-shaped support type grass trimmer head provided by the embodiment of the present invention;

[0022] Figure 2 Schematic side view of Example 2 of the bow-shaped support type grass trimmer head provided by the embodiment of the present invention;

[0023] Figure 3 Schematic side view of Example 3 of the bow-shaped support type grass trimmer head provided by the embodiment of the present invention;

[0024] Figure 4 Schematic side view of Example 4 of the bow-shaped support type grass trimmer head provided by the embodiment of the present invention;

[0025] Figure 5 Schematic structural diagram of Example 1 of the multi-joint bow-shaped support provided by the embodiment of the present invention;

[0026] Figure 6 Schematic structural diagram of Example 2 of the multi-joint bow-shaped support provided by the embodiment of the present invention;

[0027] Figure 7 Schematic structural diagram of Example 3 of the multi-joint bow-shaped support provided by the embodiment of the present invention;

[0028] Figure 8 Schematic structural diagram of Example 4 of the multi-joint bow-shaped support provided by the embodiment of the present invention;

[0029] Figure 9 Schematic structural diagram of Example 1 of the grass trimming module provided by the embodiment of the present invention;

[0030] Figure 10 Schematic structural diagram of Example 2 of the grass trimming module provided by the embodiment of the present invention;

[0031] Figure 11 Schematic structural diagram of the L-shaped walking frame provided by the embodiment of the present invention;

[0032] Figure 12 Schematic structural diagram of Example 3 of the grass trimming module provided by the embodiment of the present invention;

[0033] Figure 13 Schematic structural diagram of Example 4 of the grass trimming module provided by the embodiment of the present invention;

[0034] Figure 14Schematic diagram of the grass trimming module example 5 provided by the embodiment of the present invention;

[0035] Figure 15 Side view schematic diagram of the grass trimming module example 5 provided by the embodiment of the present invention;

[0036] Figure 16 Side view schematic diagram of the grass trimming module example 6 provided by the embodiment of the present invention;

[0037] Figure 17 Schematic diagram of the structure of the grass trimming unmanned vehicle provided by the embodiment of the present invention;

[0038] Figure 18 Schematic diagram of the state change when the grass trimming module provided by the embodiment of the present invention is towed by the unmanned vehicle through the undulating ground.

[0039] In the figure: 100, grass trimming module; 10, bow-supported grass trimming head; 11, motor; 12, multi-joint bow support; 121, bow support body; 122, shaft connecting ear seat; 123, motor joint; 124, fastener; 125, first sprocket; 13, grass trimming head; 20, towing frame; 21, frame body; 22, trailer connector; 23, double-end connecting rod; 24, chain; 25, second sprocket; 26, long connecting rod; 27, short connecting rod; 28, high-low position multi-hole connecting piece; 29, L-shaped walking frame; 291, L-shaped bracket; 292, universal wheel; 293, spring bolt; 30, shaft; 40, hole; 50, power supply module; 200, unmanned vehicle; 300, wire. Detailed implementation manners

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. 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.

[0042] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. This is 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 orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0043] In addition, if terms such as "first", "second", etc. are only used for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0044] It should be noted that, without conflict, the features in the embodiments of the present invention can be combined with each other.

[0045] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown in, the present invention discloses a bow - supported grass - cutting head 10, which includes a motor 11, a grass - cutting head 13, and a multi - joint bow support 12. One end of the multi - joint bow support 12 is detachably connected to the outer shell of the motor 11, and one end of the rotating shaft of the motor 11 is fixedly connected to the grass - cutting head 13.

[0046] The specific implementation manners will be described as follows:

[0047] I. See Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 The multi - joint bow support 12 of the present invention is composed of a motor joint 123 with fasteners 124 such as screws or latches at one end of the bow support body 121, and at least one shaft - connecting ear seat 122 is provided on a section of the bow support body 121 close to the motor joint 123.

[0048] II. See Figure 8 As shown in, a first sprocket 125 is further provided on the shaft - connecting ear seat 122 of the present invention. One side of the first sprocket 125 is fixedly connected to one side of the shaft - connecting ear seat 122, and the central hole 40 of the first sprocket is concentric with a hole 40 on the shaft - connecting ear seat 122.

[0049] III. See Figure 9 、 Figure 10 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 The grass - cutting module 100 provided by the present invention includes a traction frame 20 and at least one bow - supported grass - cutting head 10. The bow - supported grass - cutting head 10 is articulated to one end of the traction frame 20 by a shaft 30 through a hole 40 on the shaft - connecting ear seat 122.

[0050] IV. Refer to Figure 9 , in Example 1 of the towing frame 20 of the present invention, one end of the trailer connector 22 is connected to the middle of the frame body 21.

[0051] V. Refer to Figure 10 and Figure 11 , in Example 2 of the towing frame 20 of the present invention, an L-shaped walking frame 29 is connected to the frame body 21 of Example 1 of the towing frame 20. The L-shaped walking frame 29 includes an L-shaped bracket 291, a universal wheel 292, and a spring bolt 293. The middle hole 40 of the L-shaped bracket 291 is movably connected to the frame body 21 through a shaft 30. The universal wheel 292 is connected to one end of the L-shaped bracket 291, and the spring bolt 293 is connected to the other end of the L-shaped bracket 291 and the end where the universal wheel 292 is located.

[0052] VI. Refer to Figure 7 and Figure 16 , in Example 3 of the towing frame 20 of the present invention, it includes a high-low multi-hole connector 28, a long connecting rod 26, and a short connecting rod 27. The number of the long connecting rod 26 and the short connecting rod 27 is equal. The upper hole of the high-low multi-hole connector 28 is hinged to one end of the long connecting rod 26 through a shaft 30, and the lower hole is hinged to one end of the short connecting rod 27 through a shaft 30. The other end of the long connecting rod 26 can be connected to the hole 40 at the upper end of the shaft connecting ear seat 122 through a shaft 30, and the other end of the short connecting rod 27 can be connected to the hole 40 at the lower end of the shaft connecting ear seat 122 through a shaft 30.

[0053] VII. Refer to Figure 13 , in Example 4 of the towing frame 20 of the present invention, it is formed by hinging one end of a double-end connecting rod 23 and the trailer connector 22 through a shaft 30.

[0054] VIII. Refer to Figure 8 and Figure 14 , in Example 5 of the towing frame 20 of the present invention, a second sprocket 25 with a chain 24 is further provided on the basis of Example 4 of the towing frame 20. One side of the second sprocket 25 is fixedly connected to the trailer connector 22, and the chain 24 is used to connect the second sprocket 25 and the first sprocket 125 on the shaft connecting ear seat 122.

[0055] IX. Refer to Figure 17 , the grass cutting unmanned vehicle of the present invention includes an unmanned vehicle 200 and at least one grass cutting module 100. One end of the towing frame of the grass cutting module 100 is movably connected to the rear of the unmanned vehicle 200 through a trailer connector or a screw, and the motor on the grass cutting module 100 is connected to the power supply module 50 on the unmanned vehicle 200 through a wire 300.

[0056] X. Refer to Figure 1 and Figure 2 and Figure 3 andFigure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , when adjusting the mowing height of the present invention, hold or grip the motor with one hand, and loosen the fasteners 124 such as screws or latches on the motor connector 123 of the bow support body 121 with the other hand. Then move the motor 11 on the motor connector 124 up and down to adjust the ground clearance of the mowing head 13 at the lower end of the motor 11. After determining the mowing height, fasten the fasteners 124 such as screws or latches on the motor connector 123.

[0057] See Figure 10 , Figure 11 , the usage mode of the L-shaped walking frame 29 of the present invention: when towing the mowing module 100 to move forward in the non-mowing operation state, one end of the spring bolt 293 can be locked on the L-shaped bracket 291 in the state shown in Figure 10 ; when mowing operation is required, pull the spring bolt 293 to unlock it from the L-shaped bracket 291, then hold the frame body 21 with one hand and grip one end of the L-shaped bracket 291 provided with only the spring bolt 293 with the other hand, and pull it up towards the direction of the bow-type mowing head 10 until the universal wheel 292 rises to the limit position. At the same time, another spring bolt 293 on the L-shaped bracket 291 is inserted into the frame body 21, that is, the retraction of the L-shaped walking frame 29 is completed; when using the L-shaped walking frame 29, first pull the spring bolt 293 stuck on the L-shaped bracket 291 to unlock it, and then push the other end of the L-shaped bracket 291 until the spring bolt 293 on it is inserted and locked on the frame body 21 (as shown in Figure 10 ).

[0058] See Figure 15 , Figure 18 , the way that the mowing module example 5 of the present invention fluctuates with the terrain under the traction of the unmanned vehicle and changes the mowing and passing angles: when the bow support body 121 is pulled and moves down from the edge of the pit, one end of the double-ended connecting rod 23 connected to it rotates counterclockwise (in the ground direction) around the trailer connector 22. During this process, the sprocket 25 on the trailer connector 22 pulls the chain 24 above the double-ended connecting rod 23, driving the sprocket 25 on the bow support body 121 to rotate clockwise, thereby driving the bow-type mowing head 10 to rotate clockwise by a certain angle around the other end of the double-ended connecting rod 23; when the bow support body 121 is pulled and moves up from the bottom of the pit, one end of the double-ended connecting rod 23 connected to it rotates clockwise (opposite to the ground direction) around the trailer connector 22. During this process, the sprocket 25 on the trailer connector 22 pulls the chain 24 below the double-ended connecting rod 23, driving the sprocket 25 on the bow support body 121 to rotate counterclockwise, thereby driving the bow-type mowing head 10 to rotate counterclockwise by a certain angle around the other end of the double-ended connecting rod 23.

[0059] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the said claims.

Claims

1. A grass cutting module, characterized in that: It includes a towing frame and an arch-supported grass cutter head, and the arch-supported grass cutter head is hinged to one end of the towing frame by a shaft passing through a hole in the shaft-connected ear seat; The arch-supported grass cutter head includes a motor, a grass cutter head and a multi-joint arch support. One end of the multi-joint arch support is detachably connected to the motor housing, and one end of the rotating shaft of the motor is fixedly connected to the grass cutter head; the multi-joint arch support is composed of a motor joint with a fastener provided at one end of the arch support body, and at least one shaft-connected ear seat is provided on a section of the arch support body close to the motor joint; The towing frame is formed by connecting one end of a trailer connector to the middle of the frame body; An L-shaped walking frame is further provided on the frame body. The L-shaped walking frame includes an L-shaped bracket, a universal wheel and a spring bolt. The middle hole of the L-shaped bracket is movably connected to the frame body by a shaft. The universal wheel is connected to one end of the L-shaped bracket, and the spring bolt is connected to the other end of the L-shaped bracket and the end where the universal wheel is located.

2. A weed-trimming unmanned vehicle, characterized in that: It includes an unmanned vehicle and the grass cutting module described in claim 1. The grass cutting module is movably connected to the rear of the unmanned vehicle through one end of the towing frame, and the motor of the arch-supported grass cutter head on the grass cutting module is connected to the power supply module on the unmanned vehicle through a wire.

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