Tail dragging device and courtyard robot

Abstract

The utility model relates to a traction device, in particular to a tail dragging device and a courtyard robot, which are used for overcoming the defect that the working stability of modular accessories is affected due to insufficient dragging force when a main body of an existing courtyard robot drags various modular accessories. The tail dragging device comprises a mounting plate and a dragging assembly, the inner side face of the mounting plate is used for being connected with the tail of a courtyard robot body, and the outer side face is provided with a dragging assembly. The dragging assembly is used for being connected with a modular accessory to achieve the dragging function and comprises a base, a dragging plate and at least one reinforcing piece. According to the utility model, the dragging capability of the main body of the courtyard robot to the modular accessories is enhanced, and the adaptability and the working stability are improved. Meanwhile, the utility model further provides a courtyard robot, and the tail dragging device is arranged at the tail of a main body of the courtyard robot.

Description

TECHNICAL FIELD

[0001] The utility model relates to courtyard robot and its traction device, concretely relates to a tail tow device and courtyard robot. BACKGROUND

[0002] In recent years, with the development of intelligentization and automation technology, courtyard robots are widely used in the fields of gardening maintenance, cleaning, material handling and the like. In order to expand the functions, the main bodies of many courtyard robots are equipped with towable modular accessories, such as courtyard garbage cans, large packages, gardening tools and the like, or snow-melting agent spreading equipment, snow-rescue tools, fallen leaf collecting bags, seasonal sundries such as pruned branches.

[0003] However, when the main body of the existing courtyard robot is towing a plurality of modular accessories, the towing force is often insufficient due to the design of the tow hook structure and the matching of the power system, which affects the working stability of the modular accessories. Therefore, how to optimize the towing capacity of the main body of the courtyard robot and improve its adaptability to different accessories has become a problem to be solved in the current industry. SUMMARY

[0004] The utility model aims at solving the insufficient towing force of the main body of the existing courtyard robot when towing a plurality of modular accessories, which affects the working stability of the modular accessories, and provides a tail tow device and a courtyard robot.

[0005] In order to solve the above-mentioned problems of the prior art, the utility model provides the following technical solutions:

[0006] A tail tow device, characterized in that it comprises a mounting plate;

[0007] The inner side of the mounting plate is used to connect the tail of the main body of the courtyard robot, and the outer side is provided with a towing assembly;

[0008] The towing assembly comprises a base provided on the outer side of the mounting plate, a towing plate vertically provided on the base in the horizontal direction, and at least one reinforcing member provided between the base and the towing plate; a plurality of notches are provided on the towing plate for connecting the modular accessories.

[0009] Optionally, the upper part of the base is a T-shaped structure, the lower part is a U-shaped structure with the opening downward, and the two ends of the top of the T-shaped structure and the two ends of the opening of the U-shaped structure are fixed to the outer side of the mounting plate.

[0010] Optionally, each reinforcing member comprises a first reinforcing plate and a second reinforcing plate connected perpendicularly to each other, the first reinforcing plate is arranged parallel to the base, and the second reinforcing plate is arranged vertically to the bottom surface of the towing plate, and the bottom surface is concave arc-shaped.

[0011] Optionally, the number of reinforcing members is 2, and the second reinforcing plates of the two reinforcing members are connected by a reinforcing beam set on the bottom surface of the drag plate; the end of the reinforcing beam near the mounting plate extends out of the drag plate and passes through the U-shaped structure, and the reinforcing beam is provided with a groove that matches the groove on the drag plate.

[0012] Optionally, the mounting plate is provided with a plurality of first connecting holes and a plurality of first snap-fit ​​slots; the upper end and the lower end of the base are both provided on the outer surface of the mounting plate through at least one first connecting hole; the plurality of first snap-fit ​​slots are used to snap-fit ​​with modular accessories;

[0013] The multiple slots are provided on the drag plate and include multiple different shapes, with each shape having one or more slots.

[0014] Optionally, it also includes a plurality of connecting rods symmetrically arranged on both sides of the upper part of the mounting plate, at least one support rod arranged at the bottom end of the mounting plate, and connecting components arranged at the ends of all support rods.

[0015] Each of the connecting bars extends horizontally away from the dragging component, and its inner circumference is adapted to fit the shape of the main body tail of the garden robot and is fixedly connected; the connecting component is provided with a second snap-fit ​​groove for snapping into the main body tail of the garden robot.

[0016] Optionally, each of the connecting bars includes a first connecting segment and a second connecting segment, both of which are straight and connected in sequence. The end of the first connecting segment is fixedly connected to the upper sidewall of the mounting plate, and the end of the second connecting segment is used to connect to the tail of the main body of the garden robot. The positioning block is disposed on the bottom surface of the second connecting segment.

[0017] Each of the support bars is an arc-shaped structure with its inner circumference far away from the drag plate; each support bar is connected to the bottom end of the mounting plate and the connecting component at both ends.

[0018] Optionally, the connecting assembly includes a connecting plate and a connecting block that are parallel to each other and connected. The connecting plate is connected to one end of the support rod and is provided with a plurality of second connecting holes. The connecting block is provided with a plurality of third connecting holes that are adapted to the plurality of second connecting holes respectively. The plurality of second connecting holes and the plurality of third connecting holes are used to realize the connection between the connecting plate and the connecting block.

[0019] Both the connecting plate and the connecting block are provided with corresponding connecting through holes for connecting the connecting plate, the connecting block and the tail of the main body of the garden robot;

[0020] The second card slot is located on both sides of the connecting block.

[0021] Optionally, the inner side of the mounting plate is provided with a weight-reducing groove, and the bottom surface of the weight-reducing groove is provided with a weight-reducing through hole;

[0022] The plurality of first connecting holes and the plurality of first snap-fit ​​slots are all located on the bottom surface of the weight reduction groove;

[0023] The upper and lower ends of the base are respectively connected to the upper and lower sides of the weight reduction through hole on the mounting plate through at least one first connecting hole.

[0024] Meanwhile, this utility model also provides a garden robot, which is special in that it includes a main body and the aforementioned tail dragging device disposed at the tail of the main body.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] (1) This utility model discloses a tail-dragging device, comprising a mounting plate and a dragging assembly; wherein, the inner side of the mounting plate is used to connect to the tail of the main body of a garden robot, and the outer side is provided with the dragging assembly; the dragging assembly is used to connect modular attachments to achieve dragging function, and includes a base, a dragging plate and at least one reinforcing member. The base is used to ensure that the dragging force can be evenly distributed on the mounting plate. The dragging plate adopts a design that is perpendicular to the base in the horizontal direction to ensure that the force direction during dragging is more stable. Multiple slots are provided on it to adapt to different modular attachments, thereby improving the applicability range. The reinforcing member further improves the overall rigidity and dragging stability. This utility model enhances the dragging ability of the main body of the garden robot to modular attachments, and improves adaptability and working stability.

[0027] (2) In this utility model, the upper part of the base is a T-shaped structure and the lower part is a U-shaped structure with the opening facing downward. The T-shaped structure is used to prevent the dragging component from being pulled backward and to improve the torsional rigidity; the U-shaped structure is used to enhance the bending resistance and reduce the sway caused by the inertia of the modular attachments; the combination of the two improves the dragging ability and operation accuracy of the main body of the garden robot.

[0028] (3) In this utility model, the reinforcing member includes a first reinforcing plate and a second reinforcing plate that are perpendicularly connected to each other. The purpose is to achieve multi-point support and fixation and optimize the force distribution to improve the stability and bending rigidity of the dragging component. The second reinforcing plates of the two reinforcing members are connected by a reinforcing beam to form a continuous force transmission path to avoid torsional deformation under asymmetrical load. The end of the reinforcing beam near the mounting plate extends out of the dragging plate and passes through the U-shaped structure for buffer support and to reduce violent shaking.

[0029] (4) In this utility model, the connecting bar is used to fix the mounting plate to the tail of the main body of the garden robot and adapt to its shape to improve the overall dragging stability; the support bar is used to provide additional support force to improve the torsional resistance and stability of the entire device. The connecting component at the end of the support bar is used to ensure that this utility model can be firmly fixed to the tail of the main body of the garden robot, avoiding loosening due to long-term use and improving reliability.

[0030] (5) In this utility model, the connecting bar extends in the horizontal direction and its inner circumference is adapted to the shape of the tail of the main body of the garden robot. The purpose is to distribute the force, enhance rigidity, improve the installation matching degree and reduce the vibration or deformation generated during the dragging process.

[0031] (6) In this utility model, the support bar adopts an arc-shaped structure and its inner circumference is far away from the mounting plate. This is mainly to optimize the force path, reduce stress concentration, improve bending rigidity, enhance impact resistance, adapt to the main structure, and improve assembly stability.

[0032] (7) The present invention provides a garden robot, the main body of which is provided with the above-mentioned tail dragging device; the traction force can be evenly distributed to each point of the mounting plate through the base in the dragging component, avoiding local stress concentration, reducing structural fatigue and deformation risk, thereby improving the dragging force bearing limit; the overall rigidity is improved by the reinforcing component, ensuring dragging stability under high load conditions, and is suitable for complex garden terrain or heavy modular attachment scenarios; different types of modular attachments can be quickly connected through multiple slots, improving the multi-functional expansion capability of the garden robot. Attached Figure Description

[0033] Figure 1 This is an isometric view of an embodiment of the tail-dragging device of this utility model. Figure 1 ;

[0034] Figure 2 Axonometric diagram of an embodiment of this utility model Figure 2 ;

[0035] Figure 3 Axonometric diagram of an embodiment of this utility model Figure 3 ;

[0036] Figure 4 This is an isometric view of the drag-and-drop component in an embodiment of this utility model;

[0037] Figure 5 This is the main view of the drag-and-drop component in an embodiment of this utility model;

[0038] Figure 6 This is a top view of the drag-and-drop component in an embodiment of this utility model;

[0039] Figure 7 This is a left view of the drag-and-drop component in an embodiment of this utility model;

[0040] Figure 8 This is an isometric schematic diagram of an embodiment of a garden robot according to the present invention.

[0041] The reference numerals in the attached drawings are explained as follows: 10-mounting plate, 11-first connecting hole, 12-first snap-fit ​​groove, 13-weight reduction groove, 14-weight reduction through hole;

[0042] 200-Drag assembly, 210-Base, 211-T-shaped structure, 212-U-shaped structure, 213-Base weight reduction groove, 220-Drag plate, 221-Irregular groove, 222-Circular groove, 230-Reinforcing member, 231-First reinforcing plate, 232-Second reinforcing plate; 240-Reinforcing beam;

[0043] 30-Connecting bar, 31-First connecting segment, 32-Second connecting segment, 33-Positioning block;

[0044] 40-Support bar; 50-Connecting component; 51-Second snap-fit ​​groove; 52-Connecting plate; 53-Connecting block; 54-Second connecting hole; 55-Connecting through hole;

[0045] 60-Main body. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] Reference Figures 1 to 8 A tail-dragging device includes a mounting plate 10 and a dragging assembly 200.

[0048] The inner side of the mounting plate 10 is used to connect the main body of the garden robot to its tail, and the outer side is equipped with a dragging component 200.

[0049] The drag-and-drop assembly 200 is used to connect modular accessories to enable drag-and-drop functionality. It includes a base 210 disposed on the outer side of the mounting plate 10, a drag plate 220 vertically disposed on the base 210 in a horizontal direction, and two reinforcing members 230 disposed between the base 210 and the drag plate 220. In some embodiments, the number of reinforcing members 230 may also be different.

[0050] The drag plate 220 has multiple slots to accommodate different types of hooks or connectors.

[0051] In this embodiment, the base 210 and the drag plate 220 are an integral structure. In other embodiments, a split structure combined with welding or other connection methods can be used.

[0052] It should be noted that the aforementioned modular accessories can be large items occupying a large area for detached house users, such as yard trash cans, large packages, gardening tools, etc., or seasonal items such as de-icing agent spreading equipment, snow rescue tools, leaf collection bags, and pruned branches. The mounting plate 10 can be a flat plate or a fitted curved plate, etc., and the material can be an alloy (such as 6061-T6) or a composite material (such as carbon fiber + epoxy resin laminate), etc.; the base 210 can be a flat plate or other shapes, and the material can be ductile iron (QT450-10) or die-cast aluminum alloy (ADC12), etc.; the drag plate 220 can be a U-shaped plate or a rectangular plate, etc., and the material can be stainless steel (such as 304) or high-strength steel (such as Q345B), etc.; the reinforcing member 230 can be a triangular rib or an I-beam, etc., and the material can be structural steel (such as S355J2) or titanium alloy (such as Ti-6Al-4V) or carbon fiber composite material (such as T700 carbon cloth + epoxy resin), etc.

[0053] In some embodiments, such as Figure 2 , Figure 4 , Figure 5 The base 210 has a T-shaped structure 211 on the upper part and a U-shaped structure 212 with an opening facing downwards on the lower part. The top two ends of the T-shaped structure 211 and the two ends of the opening of the U-shaped structure 212 are fixed to the outer side of the mounting plate 10. The T-shaped structure 211 is mainly subjected to horizontal tensile force and vertical compressive force, which prevents the towing component 200 from being pulled backward and improves torsional rigidity. The U-shaped structure 212 is mainly subjected to vertical bending resistance and lateral torsional resistance, which enhances bending resistance and reduces swaying caused by the inertia of modular attachments. The combination of the two makes the towing component 200 more stable and improves the towing ability and operating accuracy of the main body of the garden robot.

[0054] In some embodiments, such as Figure 2 , Figure 4 , Figure 5 , Figure 7 To enhance the rigidity of the drag plate 220 and reduce the deformation caused by the dragging torque, each reinforcing member 230 includes a first reinforcing plate 231 and a second reinforcing plate 232 that are perpendicularly connected to each other. The first reinforcing plate 231 is arranged parallel to the base 210, and the second reinforcing plate 232 is arranged perpendicularly to the bottom surface of the drag plate 220, and the bottom surface is concave arc-shaped. The concave arc shape is used to make the force evenly distributed on the entire bottom surface of the reinforcing member 230, reduce local stress concentration, and improve structural durability.

[0055] It should be noted that the first reinforcing plate 231 and the second reinforcing plate 232 can be integral or welded together. The connection between the first reinforcing plate 231 and the base 210, and between the second reinforcing plate 232 and the drag plate 220, can be welding or bolts, etc.

[0056] In some embodiments, such asFigure 2 , Figure 3 , Figures 5 to 7 To further enhance the rigidity of the towing plate 220, a reinforcing beam 240 is provided on the bottom surface of the towing plate 220. The reinforcing beam 240 also has a matching groove at the groove of the towing plate 220. The top surface of the reinforcing beam 240 is attached to the bottom surface of the towing plate 220, and the two sides are respectively connected to the second reinforcing plates 232 of the two reinforcing members 230. The vertically arranged second reinforcing plates 232 and the horizontally arranged reinforcing beam 240 form a U-shaped frame, which makes the force transmission more continuous and effectively cuts off the deformation path to avoid torsional deformation under asymmetrical load. The end of the reinforcing beam 240 near the mounting plate 10 extends out of the towing plate 220 and passes through the U-shaped structure 212, serving as an anti-torsion fulcrum. It plays a dynamic force buffer support role during dynamic operation (such as turning and starting) to reduce violent shaking.

[0057] In this embodiment, the reinforcing beam 240 is rectangular; in other embodiments, it may also be I-shaped or similar.

[0058] In this embodiment, the two reinforcing members 230 are integrated into one structure. In other embodiments, a separate structure combined with welding or other connection methods can be used. The connection between the reinforcing beam 240 and the bottom surface of the drag plate 220 is achieved by welding and bolting, or welding or other methods.

[0059] It should be noted that the reinforcing beam 240 can be made of the same material as the reinforcing member 230, or it can be made of a different material.

[0060] In some embodiments, such as Figures 1 to 3 The mounting plate 10 is provided with ten first connection holes 11 and four first snap-fit ​​slots 12; at least one first connection hole 11 can be connected to other external modules (such as a Hall effect detection module, used to determine whether the modular accessory is correctly installed or detached); the four first snap-fit ​​slots 12 are used to snap with the modular accessory to achieve precise docking. In its embodiment, the number of first connection holes 11 and first snap-fit ​​slots 12 can also be other.

[0061] The top two ends of the T-shaped structure 211 and the two ends of the opening of the U-shaped structure 212 are fixed to the outer side of the mounting plate 10 through a first connecting hole 11.

[0062] The corresponding ends of the openings of each first reinforcing plate 231 and U-shaped structure 212 are fixed to the mounting plate 10 through the same first connecting hole 11.

[0063] like Figure 1 , Figure 4 , Figure 6Multiple slots are provided on the drag plate 220, and include multiple different shapes, with one or more of each shape. Specifically, the drag plate 220 has one irregularly shaped slot 221 symmetrically arranged on both sides and two circular slots 222 arranged in the middle. The irregularly shaped slots 221 are used to adapt to different types of hooks or connectors to improve versatility; in this embodiment, a crescent shape is used. The circular slots 222 are used for pin-type connections. In this embodiment, to improve versatility, the slots can also be other shapes.

[0064] In some embodiments, such as Figures 1 to 3 The tail-end towing device also includes two connecting bars 30, two support bars 40, and a connecting assembly 50. In its embodiment, the number of connecting bars 30 and support bars 40 may also be other numbers.

[0065] Two connecting bars 30 are symmetrically arranged on both sides of the upper part of the mounting plate 10. Each connecting bar 30 extends horizontally away from the towing component 200. The purpose of this horizontal arrangement is to suppress the swaying of the towing component 200, enhance the overall torsional resistance, and improve driving stability. The inner circumference of the connecting bar 30 is adapted to the shape of the tail of the garden robot to improve connection stability. One end of each connecting bar 30 is fixedly connected to the upper side wall of the mounting plate 10, and the other end is used to connect to the tail of the garden robot.

[0066] Two support bars 40 are set at the bottom of the mounting plate 10, and the connecting component 50 is set at the ends of the two support bars 40; the connecting component 50 is provided with a second snap-fit ​​groove 51 for snap-fitting with the tail of the main body of the garden robot.

[0067] It should be noted that the connecting rod 30 can be a cylindrical tube, a rectangular tube, or a telescopic sleeve, etc., and the material can be aluminum alloy (such as 6063-T5), stainless steel (such as 304 / 316L), or carbon fiber composite material, etc.; the support rod 40 can be an L-shaped angle steel, a U-shaped channel steel, or a hinged design, etc., and the material can be high-strength steel (such as Q355B), glass fiber reinforced nylon (such as PA6-GF35), or titanium alloy (such as Ti-3Al-2.5V), etc.; the connecting component 50 can be a pin type, a magnetic assisted type, or a spring type, etc., and the material can be die-cast alloy (such as ADC12) or engineering plastic, etc.

[0068] In some embodiments, such as Figures 1 to 3Each connecting bar 30 includes a first connecting segment 31 and a second connecting segment 32, both of which are straight and connected in sequence. The end of the first connecting segment 31 is fixedly connected to the upper side wall of the mounting plate 10. The end of the second connecting segment 32 is used to connect to the tail of the main body of the garden robot. The bottom surface of the second connecting segment 32 is provided with a positioning block 33 for abutting against the tail of the main body of the garden robot. After the positioning block 33 abuts against the tail of the main body of the garden robot to achieve positioning, the second connecting segment 32 is then connected to the tail of the main body of the garden robot to improve connection stability, suppress the swing of the dragging component 200, enhance anti-torsion ability, and improve operational stability.

[0069] In some embodiments, such as Figures 1 to 3 Each support bar 40 has an arc-shaped structure, and its inner circumference is far away from the dragging component 200. The purpose is to optimize the force path, improve bending rigidity, adapt to the main structure, and improve assembly stability.

[0070] In some embodiments, such as Figures 1 to 3 The connecting component 50 includes a connecting plate 52 and a connecting block 53 that are parallel to each other and connected. The connecting plate 52 is connected to one end of the support rod 40 and is provided with four second connecting holes 54. The connecting block 53 is provided with four third connecting holes that are adapted to the four second connecting holes 54 respectively. The four second connecting holes 54 and the four third connecting holes are used to connect the connecting plate 52 and the connecting block 53. Both the connecting plate 52 and the connecting block 53 are provided with corresponding connecting through holes 55 for connecting the connecting plate 52, the connecting block 53 and the tail of the main body of the garden robot.

[0071] like Figure 3 The connecting block 53 has a second snap-fit ​​groove 51 on both sides for snap-fitting with the tail of the main body of the garden robot.

[0072] In some embodiments, such as Figures 1 to 3 The inner side of the mounting plate 10 is provided with a weight reduction groove 13 to reduce the overall weight of the device, thereby improving dragging efficiency, optimizing the center of gravity, and enhancing structural stability; the bottom surface of the weight reduction groove 13 is provided with a weight reduction through hole 14 to further reduce weight and optimize airflow, thereby reducing resistance (under high-speed dragging conditions).

[0073] All of the aforementioned first connecting holes 11 and all of the first snap-fit ​​grooves 12 are located on the bottom surface of the weight reduction groove 13; the upper and lower ends of the base 210 are respectively connected to the upper and lower sides of the weight reduction through holes 14 on the mounting plate 10 through a first connecting hole 11.

[0074] The upper and lower ends of the base 210 are respectively connected to the upper and lower sides of the weight reduction through hole 14 on the mounting plate 10 through two first connecting holes 11.

[0075] Reference Figure 5The inner sides of both ends of the opening of the U-shaped structure 212 are provided with base weight reduction grooves 213.

[0076] like Figure 8 This utility model also discloses a garden robot, including a main body 60 and the aforementioned tail dragging device disposed at the tail of the main body 60.

[0077] It should be noted that the aforementioned subject 60 refers to a "robot" as defined in GB / T 39405-2020. Specifically, depending on the application field, it can be a personal / household service robot with an intelligence level of L3 to L4, supporting multi-sensor fusion and dynamic environment adaptation. The application scenarios for this yard robot can include daily handling, such as dragging heavy objects like trash cans, tools, and furniture to reduce manpower burden; seasonal needs, such as dragging snow removal equipment in winter, moving fallen leaf collection devices in autumn; or broader fields such as agricultural hauling and logistics transportation.

[0078] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. For those skilled in the art, modifications can be made to the specific technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions protected by this invention.

Claims

1. A tail-dragging device, characterized in that: Including mounting plate (10); The inner side of the mounting plate (10) is used to connect the main body tail of the garden robot, and the outer side is provided with a dragging component (200); The drag assembly (200) includes a base (210) disposed on the outer side of the mounting plate (10), a drag plate (220) disposed vertically on the base (210) in the horizontal direction, and at least one reinforcing member (230) disposed between the base (210) and the drag plate (220); the drag plate (220) is provided with a plurality of slots for connecting modular accessories.

2. The tail-dragging device according to claim 1, characterized in that: The upper part of the base (210) is a T-shaped structure (211), and the lower part is a U-shaped structure (212) with the opening facing downwards. The top two ends of the T-shaped structure (211) and the two ends of the opening of the U-shaped structure (212) are fixed to the outer side of the mounting plate (10).

3. The tail-dragging device according to claim 2, characterized in that: Each of the reinforcing members (230) includes a first reinforcing plate (231) and a second reinforcing plate (232) that are perpendicularly connected to each other. The first reinforcing plate (231) is arranged parallel to the base (210), and the second reinforcing plate (232) is arranged perpendicularly to the bottom surface of the drag plate (220), and the bottom surface is concave arc-shaped.

4. The tail-dragging device according to claim 3, characterized in that: The number of the reinforcing members (230) is 2. The second reinforcing plates (232) of the two reinforcing members (230) are connected by a reinforcing beam (240) set on the bottom surface of the drag plate (220). The end of the reinforcing beam (240) near the mounting plate (10) extends out of the drag plate (220) and passes through the U-shaped structure (212). The reinforcing beam (240) is provided with a slot that matches the slot on the drag plate (220).

5. A tail-dragging device according to any one of claims 1 to 4, characterized in that: The mounting plate (10) is provided with a plurality of first connection holes (11) and a plurality of first snap-fit ​​grooves (12); the upper end and the lower end of the base (210) are both provided on the outer side of the mounting plate (10) through at least one first connection hole (11); the plurality of first snap-fit ​​grooves (12) are used to snap-fit ​​with modular accessories; The plurality of slots are provided on the drag plate (220) and include a plurality of different shapes, each shape being one or more.

6. A tail-dragging device according to claim 5, characterized in that: It also includes a plurality of connecting rods (30) symmetrically arranged on both sides of the upper part of the mounting plate (10), at least one support rod (40) arranged at the bottom of the mounting plate (10), and connecting components (50) arranged at the ends of all support rods (40); Each of the connecting bars (30) extends horizontally away from the dragging assembly (200), and its inner circumference is adapted to fit the shape of the main body tail of the garden robot and is fixedly connected; the connecting assembly (50) is provided with a second snap-fit ​​groove (51) for snapping into the main body tail of the garden robot.

7. A tail-dragging device according to claim 6, characterized in that: Each of the connecting bars (30) includes a first connecting segment (31) and a second connecting segment (32) that are both straight and connected in sequence. The end of the first connecting segment (31) is fixedly connected to the upper side wall of the mounting plate (10), and the end of the second connecting segment (32) is used to connect to the tail of the main body of the garden robot. A positioning block (33) is provided on the bottom surface of the second connecting segment (32). Each of the support bars (40) has an arc-shaped structure and its inner periphery is far away from the drag plate (220); each support bar (40) is connected to the bottom end of the mounting plate (10) and the connecting component (50) at both ends.

8. A tail-dragging device according to claim 6, characterized in that: The connecting assembly (50) includes a connecting plate (52) and a connecting block (53) that are parallel to each other and connected. The connecting plate (52) is connected to one end of the support rod (40) and is provided with a plurality of second connecting holes (54). The connecting block (53) is provided with a plurality of third connecting holes that are adapted to the plurality of second connecting holes (54). The plurality of second connecting holes (54) and the plurality of third connecting holes are used to realize the connection between the connecting plate (52) and the connecting block (53). Both the connecting plate (52) and the connecting block (53) are provided with corresponding connecting through holes (55) for connecting the connecting plate (52), the connecting block (53) and the tail of the main body of the garden robot; The second card slot (51) is provided on both sides of the connecting block (53).

9. A tail-dragging device according to claim 6, characterized in that: The mounting plate (10) has a weight-reducing groove (13) on its inner side and a weight-reducing through hole (14) on its bottom surface. The plurality of first connecting holes (11) and the plurality of first snap-fit ​​grooves (12) are all located on the bottom surface of the weight reduction groove (13); The upper and lower ends of the base (210) are respectively connected to the upper and lower sides of the weight reduction through hole (14) on the mounting plate (10) through at least one first connecting hole (11).

10. A garden robot, characterized in that: It includes a main body (60) and a tail dragging device as described in any one of claims 1 to 9, disposed at the tail of the main body (60).

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