A lawnmower

Abstract

The utility model provides a mower, include: fuselage, collision detection device, it is installed to the front apron of fuselage at least, and collision detection device includes: elastic insulating part, first conductive rubber is located elastic insulating part inside, and is provided with first wire in it, second conductive rubber is located elastic insulating part inside, and has the gap between first conductive rubber, and is provided with second wire in it, first wire and second wire connect control circuit board, and elastic insulating part compression deformation when happening collision, and first conductive rubber and second conductive rubber contact electrification to produce electric signal. The utility model discloses a structure form that adopts elastic insulating part and conductive rubber combination, has realized the function that can complete the collision detection without complex sensor, has simple structure, responds fast, low cost, environmental adaptability is strong and so on advantage, especially suitable for the outdoor complex topography under the mower robot application occasion.

Description

Technical Field

[0001] This utility model belongs to the field of lawnmower technology, and specifically relates to a lawnmower. Background Technology

[0002] The working environment of lawn mowing robots is usually quite complex. When performing their mowing tasks, they not only encounter uneven surfaces but also frequently face obstacles such as weeds and gravel. There are many types of obstacles on lawns, such as trees, fences, walls, stones, or debris. These obstacles can interfere with the robot's operation, so collision detection is necessary to avoid obstacles in time after a collision to prevent damage to the lawn mowing robot.

[0003] To address the aforementioned issues, existing collision detection methods largely rely on collision detectors. However, collision detectors are typically precision detection devices, which are costly and require stringent operating conditions. They are also ill-suited for dusty and harsh grassland environments. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a lawnmower that solves the problem that existing collision detection relies on collision detectors. However, collision detectors are mostly precision detection devices, which are expensive and require high operating conditions, and are not suitable for dusty and harsh grassland environments.

[0005] To achieve the above-mentioned objectives and other related objectives, this utility model proposes a lawnmower, comprising:

[0006] body;

[0007] A collision detection device, which is at least mounted on the front bulkhead of the fuselage, the collision detection device includes...

[0008] Elastic insulating components;

[0009] A first conductive rubber is located inside the elastic insulating member, and a first wire is disposed therein;

[0010] The second conductive rubber is located inside the elastic insulating member and has a gap with the first conductive rubber, and a second wire is disposed therein;

[0011] The first wire and the second wire are connected to the control circuit board. The elastic insulating member is compressed and deformed when a collision occurs. The first conductive rubber and the second conductive rubber come into contact and are energized to generate an electrical signal.

[0012] In one embodiment of the present invention, the collision detection device further includes a support frame, which is fixedly installed on the front bulkhead, and the elastic insulating member is fixedly installed on the support frame.

[0013] In one embodiment of the present invention, the collision detection device further includes a protective sleeve, which is elastic and wraps around the outside of the insulating rubber component.

[0014] In one embodiment of the present invention, the elastic insulating member, the first conductive rubber and the second conductive rubber are arranged to extend along the length direction of the front bulkhead.

[0015] In one embodiment of the present invention, the collision detection device is also installed on the side of the fuselage opposite to the front bulkhead.

[0016] In one embodiment of the present invention, the first wire and the second wire are respectively led out from the side of the first conductive rubber and the second conductive rubber along their length direction and connected to the control circuit board, and the led-out portions are wrapped with an insulating layer.

[0017] In one embodiment of the present invention, at least one end of the support frame and the front panel is provided with a through hole, and the lead-out portions of the first wire and the second wire pass through the through hole and are connected to the control circuit board.

[0018] In one embodiment of this utility model, the sides of the first conductive rubber and the second conductive rubber that are close to each other are set as planes so as to achieve surface contact when a collision occurs.

[0019] In one embodiment of this utility model, the elastic insulating element, the first conductive rubber, and the second conductive rubber are designed as an integral structure.

[0020] In one embodiment of this utility model, the side of the elastic insulating member facing away from the support frame is designed as a convex structure.

[0021] This invention provides a lawnmower collision detection device that is simple in structure, highly responsive, and adaptable to various environments. It utilizes a detection assembly consisting of an elastic insulating component, a first conductive rubber component, and a second conductive rubber component, installed in areas such as the front panel of the lawnmower. Upon collision, the compression and deformation of the elastic insulating component causes the two conductive rubber components to come into contact and become energized, thereby generating an electrical signal to achieve the collision detection function. It has the following significant technical advantages:

[0022] Its structure is simple and its cost is low: it uses a combination of elastic insulating parts and conductive rubber to replace the traditional complex electronic collision sensor, eliminating the need for high-precision detection elements and reducing manufacturing costs and maintenance difficulty.

[0023] Rapid response and reliable detection: By rationally designing the gaps between conductive rubbers and the planar structure of the contact surface, stable and reliable surface contact conduction can be achieved when a collision occurs, improving the circuit response speed and signal stability.

[0024] All-around collision detection capability: The collision detection device is extended along the length of the front bulkhead and can be extended to other positions on the fuselage (such as the rear bulkhead and side bulkhead) to achieve high-sensitivity detection and avoid detection blind spots.

[0025] Excellent environmental adaptability: The entire testing device is equipped with a protective cover and insulation layer, which has the properties of dustproof, waterproof and wear-resistant, and can adapt to harsh conditions such as dust, dampness and mud in outdoor grassland environment.

[0026] Facilitates assembly and maintenance: The installation stability of the elastic insulation is enhanced by setting up a support frame, while the wiring structure of the wires leading out from the end face and passing through the through hole to connect to the control circuit board is optimized, which improves assembly efficiency and the reliability of electrical connections.

[0027] Improve overall machine safety and intelligence: After a collision signal is fed back to the control circuit board, obstacle avoidance actions (such as stopping, turning, or reversing) can be quickly triggered, effectively preventing mechanical damage and improving the safety and intelligence of the lawnmower. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a lawnmower in one embodiment of the present invention.

[0030] Figure 2 This is a partial exploded view of the lawnmower in one embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the structure of a lawnmower collision detection device in one embodiment of the present invention.

[0032] Figure label:

[0033] 10. Fuselage; 20. Collision detection device; 11. Front panel; 21. Elastic insulating component; 22. First conductive rubber; 23. Second conductive rubber; 24. First wire; 25. Second wire; 26. Support frame; 27. Protective cover. Detailed Implementation

[0034] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0035] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0036] Please see Figures 1 to 3 As shown, this utility model provides a lawnmower, which includes a body 10 and a collision detection device 20 mounted on the front panel 11 of the body 10. The collision detection device 20 is used to detect whether the lawnmower collides with an obstacle during operation and feeds back the detection signal to the control circuit system, thereby realizing obstacle avoidance operation.

[0037] Please see Figure 2 and Figure 3 As shown, in this embodiment, the collision detection device 20 includes an elastic insulating member 21, a first conductive rubber 22, and a second conductive rubber (23). The elastic insulating member 21 is preferably made of silicone material with elasticity and good resilience. It is mounted on the front panel 11 of the fuselage 10 and surrounds the front profile of the fuselage to cover the area that may come into contact with obstacles. The first conductive rubber 22 and the second conductive rubber 23 are provided inside the elastic insulating member 21. A first wire 24 and a second wire 25 are embedded inside the first conductive rubber 22 and the second conductive rubber 23. The first wire 24 and the second wire 25 are respectively connected to the control circuit board to form a complete electrical signal path.

[0038] Please see Figure 2 and Figure 3As shown, in this embodiment, under normal conditions, the first conductive rubber 22 and the second conductive rubber 23 maintain a certain gap and do not contact each other, thus the circuit is in an open state. When the lawnmower collides with an obstacle during its movement, the elastic insulating component 21 is compressed and deformed by external force, which in turn causes the first conductive rubber 22 and the second conductive rubber 23 inside it to approach and contact each other, forming a closed loop between the first wire 24 and the second wire 25, generating an electrical signal. This electrical signal is transmitted to the control circuit board, which identifies it and triggers corresponding obstacle avoidance actions, such as stopping forward, turning, or reversing, thereby avoiding further impacts and mechanical damage. After the collision, the elastic insulating component 21 returns to its original state, the first conductive rubber 22 and the second conductive rubber 23 separate again, the circuit returns to an open state, and the lawnmower can continue to perform the mowing task. By adopting a structure combining elastic insulating components and conductive rubber, the collision detection function can be completed without complex sensors. It has the advantages of simple structure, fast response, low cost, and strong environmental adaptability, and is particularly suitable for lawnmower robot applications in complex outdoor terrain.

[0039] Preferably, the first conductive rubber 22 and the second conductive rubber 23 are rubber materials doped with conductive particles, which not only have good conductivity, but also have certain elasticity and wear resistance, and can adapt to the harsh conditions such as dust and moisture in the grassland environment, thereby improving the reliability and service life of the overall device.

[0040] To further enhance the obstacle avoidance capability of lawnmowers in complex environments, this utility model provides another preferred embodiment, wherein the collision detection device 20 is not only installed on the front panel 11 of the body 10, but also on the side of the body 10 opposite to the front panel 11, i.e., the rear panel position, so as to achieve effective detection of collisions in all directions.

[0041] In this embodiment, by extending the collision detection device 20 to the rear panel of the body 10, the lawnmower can maintain sensitive collision detection capabilities while moving, turning, or reversing. Specifically, the collision detection device 20 on the rear panel has the same structure as that on the front panel 11, including an elastic insulating member 21, a first conductive rubber 22, a second conductive rubber 23, and a first wire 24 and a second wire 25 inside. These components work together to generate an electrical signal upon collision, which is then processed by the control circuit board.

[0042] To ensure effective collision detection at various angles and positions, similar collision detection devices 20 can be added to different locations on the body 10 (such as the left and right sides). This allows the lawnmower to detect and react quickly to surrounding obstacles regardless of whether it is moving forward, backward, or turning left or right, effectively preventing damage from collisions. By expanding the installation locations of the collision detection devices 20, multiple devices 20 can be installed on different locations on the body 10, such as the front, left, and right sides, to achieve comprehensive collision detection. This improves the lawnmower's environmental adaptability and obstacle avoidance sensitivity, significantly enhancing its ability to detect collisions from different directions, achieving a more comprehensive and efficient obstacle avoidance mechanism, and improving the equipment's safety and reliability.

[0043] Please see Figure 2 and Figure 3 As shown, in this embodiment, the collision detection device 20 further includes a support frame 26, which enhances the installation stability of the elastic insulating component 21 and improves the consistency of its stress response. The support frame 26 is a structural component with a certain rigidity, preferably made of plastic or lightweight metal material, and its shape matches the contour of the front panel 11 of the body 10. The support frame 26 is fixedly installed on the front panel 11 of the body 10 by fasteners (such as screws or snap-fit ​​structures) to ensure that it will not shift or loosen during the operation of the lawnmower.

[0044] Please see Figure 2 and Figure 3 As shown, in this embodiment, the rear end of the elastic insulating component 21 is fixedly installed on the support frame 26 by means of bonding, snap-fitting, or integral molding, thereby achieving stable support for the entire collision detection device 20. This installation method not only improves the installation accuracy and force uniformity of the elastic insulating component 21, but also facilitates disassembly and replacement, improving the maintenance convenience and service life of the overall device.

[0045] Furthermore, the support frame 26 helps prevent the elastic insulating component 21 from deforming or falling off due to gravity or external force after long-term use, thereby ensuring the long-term stability and reliability of the collision detection function.

[0046] It is understandable that by setting up the support frame 26 to support and position the elastic insulating component 21, this utility model effectively improves the overall mechanical strength and environmental adaptability of the collision detection device without increasing the complexity of the structure, and is especially suitable for lawn mowing robots that work in complex outdoor environments for a long time.

[0047] Please see Figure 2 and Figure 3As shown, in this embodiment, the collision detection device 20 further includes a protective sleeve 27. The protective sleeve 27 is elastic and wraps around the outside of the elastic insulating member 21, serving to protect the entire collision detection device 20 and isolate it from the environment.

[0048] Please see Figure 2 and Figure 3 As shown, in this embodiment, the protective sleeve 27 is preferably made of silicone or thermoplastic rubber material with good elasticity and wear resistance. Its shape is adapted to the outer contour of the elastic insulating member 21, and it is fixedly installed on the outside of the elastic insulating member 21 by bonding, overmolding, or tight fitting. This protective sleeve 27 can not only effectively prevent external impurities such as dust, dirt, and rainwater from penetrating into the elastic insulating member 21 and the interior of the conductive rubber, but also mitigate external impact to a certain extent and extend the service life of the collision detection device 20.

[0049] In actual use, lawnmowers are often in complex outdoor environments, where gravel, branches, and other debris can easily cause wear and scratches to the detection device. By installing the protective cover 27, the weather resistance and damage resistance of the entire collision detection device 20 can be significantly improved without affecting the compression deformation of the elastic insulating component 21, thus ensuring its long-term stable operation.

[0050] In addition, the surface of the protective cover 27 can be designed with a certain texture or anti-slip structure to enhance its friction when in contact with obstacles, which helps to improve the sensitivity of collision detection, and also contributes to the overall harmonious and beautiful appearance.

[0051] It is understandable that by providing an elastic protective sleeve 27 outside the elastic insulating component 21, this utility model enhances the adaptability of the collision detection device to the external environment and the structural reliability without changing the original detection principle, and further improves the operational safety and stability of the lawnmower under complex working conditions.

[0052] Please see Figure 2 and Figure 3 As shown, in this embodiment, the elastic insulating member 21, the first conductive rubber 22 and the second conductive rubber 23 extend along the length direction of the front panel 11 of the fuselage 10 to achieve a wider range of collision detection coverage.

[0053] Please see Figure 2 and Figure 3As shown, in this embodiment, by continuously extending the key components of the collision detection device 20 along the length of the front panel 11, the entire front area is equipped with collision sensing capabilities. This structural design ensures that during the operation of the lawnmower, as long as any part of the front panel 11 comes into contact or collides, the corresponding electrical signal feedback mechanism can be triggered, thereby achieving a high-sensitivity detection effect of "responding to every touch". Specifically, the elastic insulating component 21 is generally strip-shaped and is attached and fixed to the outer surface of the front panel 11 of the body 10. Inside it, there are first conductive rubber 22 and second conductive rubber 23 distributed along the length direction, with a certain distance between them to form an open circuit. When any position is impacted by an external force, the elastic insulating component 21 at the corresponding position undergoes local compression deformation, causing the first conductive rubber 22 and the second conductive rubber 23 to come into contact and conduct, generating an electrical signal, which is transmitted to the control circuit board for identification and processing through the first wire 24 and the second wire 25.

[0054] This layout, which extends along the length, not only improves the collision detection device's ability to capture minor collisions, but also effectively avoids the detection blind spot problem that may exist in traditional point sensors, significantly enhancing the obstacle avoidance performance and operational safety of the entire machine in complex terrain.

[0055] In addition, this structure can be used in conjunction with collision detection devices 20 installed in other locations, such as similar devices on the rear panel or left and right side panels, to build an all-round, multi-angle collision detection network system, providing reliable data support for the lawnmower's intelligent obstacle avoidance and path planning.

[0056] It is understandable that by extending the elastic insulating element 21, the first conductive rubber 22, and the second conductive rubber 23 along the length of the front panel 11, this utility model achieves full coverage and highly sensitive detection of collision events, greatly improving the safety and stability of the lawnmower in actual operation.

[0057] Please see Figure 2 and Figure 3 As shown, in this embodiment, the present invention further optimizes the connection method between the conductive rubber and the wire in the collision detection device. Specifically, the first wire 24 and the second wire 25 are respectively led out from the end faces of the first conductive rubber 22 and the second conductive rubber 23 along their length direction and extended to the control circuit board, thereby realizing stable acquisition and transmission of collision signals. This wiring method with the wires led out from the end faces makes the wire layout more compact and reasonable, especially suitable for strip-shaped structures extending along the length direction of the front panel 11. By setting the wires in the end area, it is beneficial to simplify the design of the internal space of the elastic insulating component 21, and at the same time facilitate the positioning and fixing of the wires during assembly, thereby improving the integration and maintainability of the overall structure.

[0058] To prevent short circuits between the wires or signal interference caused by external environmental factors, the lead-out portions of the first wire 24 and the second wire 25 are both wrapped with an insulating layer. This insulating layer is preferably made of a material with good weather resistance and flexibility, such as silicone tubing, heat-shrink tubing, or a polymer insulating coating, which can effectively isolate moisture, dust, and other impurities under long-term outdoor use conditions, ensuring the stability of the electrical connection. Furthermore, in some preferred embodiments, waterproof connectors or sealing ring structures can be provided at the wire lead-out ends to enhance the overall protection level of the device and meet the reliable operation requirements of the lawnmower in complex environments such as wet and muddy conditions.

[0059] It is understandable that by setting the first wire 24 and the second wire 25 to extend from the end faces of the first conductive rubber 22 and the second conductive rubber 23 along their length and combining them with an insulating layer for protection, this utility model not only improves the rationality of the wire routing and assembly efficiency, but also significantly enhances the safety and environmental adaptability of the electrical connection, thereby further improving the working stability and reliability of the lawnmower in complex terrain.

[0060] Please see Figure 2 and Figure 3 As shown, in this embodiment, at least one end of the support frame 26 and the front panel 11 of the fuselage 10 has a through hole for the lead-out portions of the first wire 24 and the second wire 25 to pass through and ultimately connect to the control circuit board to realize the signal transmission function. Specifically, the position of the through hole corresponds to the lead-out ends of the first conductive rubber 22 and the second conductive rubber 23, and is usually set at one or both ends of the support frame 26, and is connected to the corresponding position on the front panel 11. This design allows the first wire 24 and the second wire 25 to pass sequentially through the through holes in the support frame 26 and the front panel 11 from inside the elastic insulating member 21, and be smoothly led out to the inside of the fuselage 10 and connected to the control circuit board.

[0061] This structural design not only achieves an orderly transition of the wire from the external detection area to the internal control system, but also effectively avoids the risk of wear or breakage caused by exposed wires, improving the overall safety and reliability of the device. Simultaneously, the edges of the through holes can be chamfered or coated with rubber to prevent scratches on the wires during threading, further ensuring their service life. Furthermore, in some preferred embodiments, sealing rings or waterproof gaskets can be installed at the through holes to enhance the dustproof and waterproof performance of the wire exit points, thereby adapting to the long-term operational needs of complex outdoor environments.

[0062] It is understandable that by providing through holes in the support frame 26 and the front panel 11, and allowing the first wire 24 and the second wire 25 to pass through and connect to the control circuit board, this utility model achieves a reasonable layout of the wire routing path, improves assembly efficiency and electrical connection stability, and further enhances the lawnmower's anti-interference ability and overall operational safety in complex environments.

[0063] Please see Figure 2 and Figure 3 As shown, in this embodiment, the present invention further optimizes the contact structure between the first conductive rubber 22 and the second conductive rubber 23. Specifically, the surfaces of the first conductive rubber 22 and the second conductive rubber 23 that are close to each other are both set as planar structures, so that stable surface contact can be achieved between them when collision or compression deformation of the elastic insulating member 21 occurs, thereby effectively improving the reliability of circuit conduction.

[0064] Compared to traditional point contact or line contact methods, the planar contact design significantly increases the contact area of ​​both, reduces the risk of poor contact due to uneven local deformation or foreign object interference, and ensures that even under slight collisions or forces from different directions, a closed circuit can be formed quickly and stably, generating effective electrical signals to be fed back to the control circuit board.

[0065] In addition, the planar structure is conducive to the uniform distribution of pressure, so that the conductive rubber is subjected to more uniform force during compression, avoiding local wear or material fatigue caused by stress concentration, and extending the service life of the collision detection device 20.

[0066] To further improve contact performance, the contact surfaces of the first conductive rubber 22 and the second conductive rubber 23 can be surface-smoothed or coated with a conductive coating to enhance their conductivity and wear resistance, thereby ensuring that they can maintain a good electrical connection effect during long-term use.

[0067] It is understood that by setting the contact surface of the first conductive rubber 22 and the second conductive rubber 23 to a planar structure, this invention achieves surface contact conduction when a collision occurs, improving the sensitivity and stability of the circuit response, thereby enhancing the safety and reliability of the lawnmower in complex environments.

[0068] Please see Figure 2 and Figure 3As shown, in this embodiment, the elastic insulating component 21, the first conductive rubber 22, and the second conductive rubber 23 are designed as an integrally molded structure. By integrating the three components into the same mold for manufacturing, not only is the assembly process simplified, but the overall structural stability and sealing performance are also significantly improved. This integral structure is preferably achieved using multi-material injection molding or co-extrusion molding processes. The elastic insulating component 21 serves as the base structure, with a reserved embedding space inside to accommodate and fix the first conductive rubber 22 and the second conductive rubber 23. During manufacturing, the two conductive rubber components are directly bonded to the inner side of the elastic insulating component 21, maintaining a set gap between them to form an open circuit state under normal conditions.

[0069] The integrated structural design avoids the component misalignment, loosening, or detachment problems that may occur in traditional split-assembly, improving the reliability of the collision detection device 20 during long-term operation. Simultaneously, by reducing assembly interfaces and connecting parts, it effectively reduces the risk of external impurities such as dust and moisture intrusion, enhancing the device's adaptability to complex outdoor environments. Furthermore, the integrated molding structure facilitates standardized production, improves product consistency, and reduces the difficulty and cost of later maintenance and replacement, demonstrating promising engineering application prospects.

[0070] By integrating the elastic insulating component 21, the first conductive rubber 22, and the second conductive rubber 23 into a single structure, this invention achieves multiple technical benefits, including simplified structure, convenient assembly, and stable performance, while ensuring the collision detection function. This further enhances the safety and reliability of the lawnmower in actual use.

[0071] Please see Figure 2 and Figure 3 As shown, in this embodiment, the side of the elastic insulator 21 facing away from the support frame 26 is designed as a convex structure to enhance its stress response performance and compressive deformation capability during collision. This convex structure preferably adopts an arc-shaped or near-circular arc profile, allowing the outer surface of the elastic insulator 21 to more evenly bear external pressure upon impact, and to transfer stress to the internal first conductive rubber 22 and second conductive rubber 23 through its own elastic deformation. Compared to a planar structure, the convex design helps to achieve faster pressure concentration with a smaller contact area, thereby improving the response speed and sensitivity of the collision detection device 20.

[0072] Furthermore, in actual use, lawnmowers often encounter irregularly shaped obstacles, such as branches and stones. The convex structure effectively reduces misjudgments or missed detections caused by a single contact point, ensuring that even in non-head-on collisions, contact between the conductive rubbers is triggered, forming a closed circuit and generating electrical signal feedback.

[0073] To further improve the overall mechanical properties of the structure, the convex portion of the elastic insulating component 21 can be locally thickened or a gradient hardness material distribution can be used, so that it has stronger compressive strength and rebound recovery performance while maintaining good elasticity.

[0074] In summary, by designing the side of the elastic insulating element 21 facing away from the support frame 26 as a convex structure, this utility model significantly improves its compression response capability and force uniformity during collision, thereby enhancing the stability and reliability of lawnmower collision detection, and is especially suitable for complex and variable outdoor operating environments.

[0075] In summary, this utility model, through structural innovation, provides a collision detection device for lawnmowers suitable for working in complex terrain environments, with good engineering application prospects, especially applicable to the field of household and commercial intelligent lawnmower robots.

[0076] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

[0077] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this utility model, the other technical features will not be described in detail here.

Claims

1. A lawnmower, characterized in that, include: body; A collision detection device, which is at least mounted on the front bulkhead of the fuselage, the collision detection device comprising: Elastic insulating components; A first conductive rubber is located inside the elastic insulating member, and a first wire is disposed therein; The second conductive rubber is located inside the elastic insulating member and has a gap with the first conductive rubber, and a second wire is disposed therein; The first wire and the second wire are connected to the control circuit board. The elastic insulating member is compressed and deformed when a collision occurs. The first conductive rubber and the second conductive rubber come into contact and are energized to generate an electrical signal.

2. The lawnmower according to claim 1, characterized in that, The collision detection device also includes a support frame, which is fixedly installed on the front bulkhead, and the elastic insulating element is fixedly installed on the support frame.

3. The lawnmower according to claim 2, characterized in that, The collision detection device also includes a protective sleeve, which is elastic and wraps around the outside of the insulating rubber component.

4. The lawnmower according to claim 3, characterized in that, The elastic insulating element, the first conductive rubber, and the second conductive rubber extend along the length of the front bulkhead.

5. The lawnmower according to claim 4, characterized in that, The collision detection device is also installed on the side of the fuselage opposite to the front bulkhead.

6. The lawnmower according to claim 2, characterized in that, The first wire and the second wire are respectively led out from the end faces of the first conductive rubber and the second conductive rubber along their length direction and connected to the control circuit board, and the led-out portions are wrapped with an insulating layer.

7. The lawnmower according to claim 6, characterized in that, At least one end of the support frame and the front panel is provided with a through hole, and the lead-out portions of the first wire and the second wire pass through the through hole and are connected to the control circuit board.

8. The lawnmower according to claim 1, characterized in that, The sides of the first conductive rubber and the second conductive rubber that are close to each other are set as planes to achieve surface contact when a collision occurs.

9. The lawnmower according to claim 1, characterized in that, The elastic insulating component, the first conductive rubber, and the second conductive rubber are designed as an integral structure.

10. The lawnmower according to claim 2, characterized in that, The side of the elastic insulating member facing away from the support frame is designed as a convex structure.

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