A grass collecting device and a mowing robot
Patent Information
- Application Number
- CN202522048301.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-23
AI Technical Summary
[0004]本申请实施例的目的是提供一种集草装置和割草机器人，能够解决目前割草机器人的集草箱的集草效率较低的问题
[0007]在本申请实施例中，通过设置输草机构，并将输送机构的第一部分穿过集草箱的开口延伸至集草箱的容纳腔内，以使出草口位于集草箱的容纳腔内，此时集草装置在集草的过程中，草屑自输草机构的入草口进入环形输送腔，接着在环形输送腔内被输送至出草口，然后自出草口被抛出，而出草口位于集草箱的容纳腔内，抛出的草屑将全部落入集草箱的容纳腔内，这可以避免草屑撒到集草箱之外，从而提升集草箱的集草效率。因此，本申请实施例能够解决目前割草机器人的集草箱的集草效率较低的问题。
Smart Images
Figure CN224818771U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of lawn mowing equipment technology, specifically relating to a grass collection device and a lawn mowing robot. Background Technology
[0002] In the past, mowing lawns required a significant investment of time and effort; for example, lawns in parks and residential areas needed regular maintenance. However, with the continuous development of technology and the emergence of lawn-mowing robots, manual lawn mowing has become much more convenient and efficient.
[0003] Current lawnmower robots typically collect grass clippings and debris by rotating a roller brush. However, this method is problematic because if the grass clippings follow a low parabolic trajectory, they don't easily collect in the collection box. Increasing the roller brush speed raises the parabolic trajectory, but this scatters the clippings, making them harder to collect. Therefore, the grass collection efficiency of current lawnmower robots is relatively low. Utility Model Content
[0004] The purpose of this application is to provide a grass collection device and a lawn mowing robot that can solve the problem of low grass collection efficiency of the grass collection box in current lawn mowing robots.
[0005] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, embodiments of this application provide a grass-collecting device applied to a lawnmower robot, comprising a device body, a grass-collecting box, and a grass-transporting mechanism. Both the grass-collecting box and the grass-transporting mechanism are disposed within the device body. The grass-collecting box has an opening extending along the traveling direction of the lawnmower robot. The grass conveying mechanism is provided with an annular conveying cavity and a grass inlet and a grass outlet connected to the annular conveying cavity. The grass inlet is located at the bottom of the grass conveying mechanism and is used to allow grass clippings to enter the annular conveying cavity. The grass outlet is located at the top of the grass conveying mechanism. A first part of the grass conveying mechanism extends through the opening into the receiving cavity of the grass collection box so that the grass outlet is located in the receiving cavity of the grass collection box.
[0006] Secondly, this application provides a lawnmower robot, including a body, a lawnmower device, and the aforementioned lawn collection device. Both the lawnmower device and the lawn collection device are disposed on the body, and the lawnmower device is located in front of the lawn collection device in the direction of travel of the lawnmower robot.
[0007] In this embodiment, by setting up a grass-feeding mechanism and extending the first part of the conveying mechanism through the opening of the grass collection box into the receiving cavity of the grass collection box, so that the grass outlet is located inside the receiving cavity of the grass collection box, during the grass collection process, grass clippings enter the annular conveying cavity from the grass inlet of the grass-feeding mechanism, are then conveyed to the grass outlet within the annular conveying cavity, and are then thrown out from the grass outlet. Since the grass outlet is located inside the receiving cavity of the grass collection box, all the thrown grass clippings will fall into the receiving cavity of the grass collection box. This can prevent grass clippings from scattering outside the grass collection box, thereby improving the grass collection efficiency of the grass collection box. Therefore, this embodiment can solve the problem of low grass collection efficiency of the grass collection box in current lawnmower robots. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the grass collection device disclosed in the embodiments of this application; Figure 2 This is an exploded view of the grass collection device disclosed in the embodiments of this application; Figure 3 This is a cross-sectional view of the grass collecting device disclosed in the embodiments of this application, wherein 710 is the rotation direction of the rotating mechanism 500, 720 is the throwing direction of grass clippings from the grass outlet 330, 730 is the entering direction of grass clippings from the grass inlet 320, and 741 is the direction in which the lifting mechanism 400 lifts the grass conveying mechanism 300. Figure 4 This is a partial structural schematic diagram of the grass collection device disclosed in the embodiments of this application; Figures 5 to 6 These are schematic diagrams of the grass delivery mechanism disclosed in the embodiments of this application from different perspectives; Figure 7 This is a schematic diagram of the lifting mechanism disclosed in the embodiments of this application.
[0009] Explanation of reference numerals in the attached figures: 100 - Main body of the device; 110 - First chute; 200 - Hay collection box; 210 - Opening; 300-Grass conveying mechanism, 310-Annular conveying chamber, 320-Grass inlet, 330-Grass outlet, 340-Outer shell, 341-Protrusion, 350-Conveying assembly, 351-Driver, 352-Transmitter, 352a-Conveyor belt, 352b-First drive shaft, 352c-Second drive shaft, 353-Grass scraper, 360-Second chute; 400-Lifting mechanism, 410-First lifting component, 411-Sliding component, 412-Lifting component, 420-Second lifting component, 430-Connecting plate; 500-Rotating mechanism; 600-Grass Roller. Detailed Implementation The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0010] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0011] The grass collection device and lawn mowing robot provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.
[0012] like Figures 1 to 7 As shown in the figure, this application discloses a grass collection device applied to a lawnmower robot. It includes a device body 100, a grass collection box 200, and a grass conveying mechanism 300. Both the grass collection box 200 and the grass conveying mechanism 300 are disposed in the device body 100. The grass collection box 200 has an opening 210 extending along the traveling direction of the lawnmower robot. Optionally, in the traveling direction of the lawnmower robot, the grass collection box 200 is located at the tail of the lawnmower robot, and the extending direction of the opening 210 of the grass collection box 200 is parallel to the traveling direction of the lawnmower robot. Optionally, the grass collection box 200 can be a U-shaped structure to facilitate the entry of grass clippings into the receiving cavity of the grass collection box 200, and also to facilitate the emptying of grass clippings from the grass collection box 200. Of course, the grass collection box 200 can also be other types of structures, and this application embodiment does not impose specific limitations on this.
[0013] The grass conveying mechanism 300 is provided with an annular conveying cavity 310 and a grass inlet 320 and a grass outlet 330 connected to the annular conveying cavity 310. The grass inlet 320 is located at the bottom of the grass conveying mechanism 300 and is used to allow grass clippings to enter the annular conveying cavity 310. The grass outlet 330 is located at the top of the grass conveying mechanism 300. The first part of the grass conveying mechanism 300 extends through the opening 210 of the grass collection box 200 into the receiving cavity of the grass collection box 200, so that the grass outlet 330 is located in the receiving cavity of the grass collection box 200.
[0014] In this embodiment, by setting a grass conveying mechanism 300 and extending the first part of the grass conveying mechanism 300 through the opening 210 of the grass collection box 200 into the receiving cavity of the grass collection box 200, so that the grass outlet 330 is located inside the receiving cavity of the grass collection box 200, during the grass collection process, grass clippings enter the annular conveying cavity 310 from the grass inlet 320 of the grass conveying mechanism 300, and are then conveyed to the grass outlet 330 within the annular conveying cavity 310. Under the action of centrifugal force, the clippings are then thrown out from the grass outlet 330 and into the grass collection box 200. Since the grass outlet 330 is located inside the receiving cavity of the grass collection box 200, all the thrown grass clippings will fall into the receiving cavity of the grass collection box 200. This prevents grass clippings from scattering outside the grass collection box 200, thereby improving the grass collection efficiency of the grass collection box 200. Therefore, this embodiment can solve the problem of low grass collection efficiency of the grass collection box 200 in current lawnmowers.
[0015] In one optional embodiment, the grass conveying mechanism 300 includes a housing 340 and a conveying assembly 350. Both the grass inlet 320 and the grass outlet 330 are located on the housing 340. The housing 340 has a protrusion 341 that seals against the lower edge of the opening 210 to prevent grass clippings from leaking from the receiving cavity of the grass collection box 200, thereby further improving the grass collection efficiency of the grass collection box 200. Alternatively, a shielding part can be provided at the lower edge of the opening 210 of the grass collection box 200, but this arrangement may leave a small amount of grass clippings in the receiving cavity when the grass collection box 200 is emptying.
[0016] Optionally, the conveying assembly 350 includes a drive member 351, a conveyor member 352, and a scraper 353. The conveyor member 352 is disposed inside the housing 340, and the conveyor member 352 and the inner surface of the device body 100 form an annular conveying cavity 310. The scraper 353 is disposed on the circumferential surface of the conveyor member 352, and a portion of the scraper 353 can extend beyond the device body 100 through the grass inlet 320 so that grass clippings are rolled into the annular conveying cavity 310 through the scraper 353. The drive member 351 is disposed on the outer surface of the housing 340, and the drive member 351 is connected to the conveyor member 352. The drive member 351 can drive the conveyor member 352 to move so that the grass clippings in the annular conveying cavity 310 are conveyed to the grass outlet 330. During the operation of the conveyor 352, when the scraper 353 rotates to the grass inlet 320, the free end of the scraper 353 extends beyond the main body 100 of the device through the grass inlet 320. At the same time, the scraper 353 continues to rotate. At this time, the scraper 353 picks up the grass clippings on the grass and brings them into the annular conveying chamber 310. Furthermore, the grass clippings in the annular conveying chamber 310 need to be conveyed from the bottom to the top of the grass conveying mechanism 300. Therefore, the grass clippings tend to slide down under their own gravity. At this time, the scraper 353 can prevent the grass clippings from sliding down, thereby improving the conveying efficiency of the conveyor 352. In a further optional embodiment, the conveying member 352 includes a conveyor belt 352a, a first drive shaft 352b, and a second drive shaft 352c. The first drive shaft 352b and the second drive shaft 352c are spaced apart. Both the first drive shaft 352b and the second drive shaft 352c are rotatably connected to the device body 100. The first drive shaft 352b is located at the bottom of the grass conveying mechanism 300. The first end of the first drive shaft 352b passes through the device body 100 and is connected to the driving member 351. The conveyor belt 352a is rotatably sleeved on the first drive shaft 352b and the second drive shaft 352c. Optionally, the conveyor belt 352a and the first drive shaft 352b, as well as the conveyor belt 352a and the second drive shaft 352c, can be connected by transmission teeth. The conveyor belt 352a and the inner surface of the device body 100 form the aforementioned annular conveying cavity 310. The driving member 351 can drive the conveyor belt 352a to rotate via the first drive shaft 352b. The conveyor belt 352a is connected to the second drive shaft 352c, and the conveyor belt 352a will drive the second drive shaft 352c to rotate. The grass scraper 353 is disposed on the circumference of the conveyor belt 352a. In this solution, the conveyor 352 uses a belt conveyor to transport grass clippings from the bottom to the top of the grass conveying mechanism 300. This conveying method has the characteristic of smooth conveying, which is conducive to improving the working efficiency of the conveyor 352 in conveying grass clippings.
[0017] Optionally, the number of grass scrapers 353 is one, or the number of grass scrapers 353 is at least two, with each grass scraper 353 arranged at intervals along the rotation direction of the conveyor belt 352a to divide the annular conveying cavity 310 into multiple chambers of equal volume. When multiple grass scrapers 353 are provided, the frequency of grass rolling by the grass scrapers 353 can be increased, thereby improving the working efficiency of the grass conveying mechanism 300 in conveying grass clippings.
[0018] Optionally, the drive unit 351 includes a drive source, the output shaft of which can be directly connected to the first end of the first transmission shaft 352b; or, the drive unit 351 further includes a transmission belt, a first transmission wheel, and a second transmission wheel, the diameter of the first transmission wheel being larger than the diameter of the second transmission wheel, the first transmission wheel being connected to the first end of the first transmission shaft 352b, the transmission belt being rotatably sleeved on the first and second transmission wheels, and the output shaft of the drive source being connected to the second transmission wheel. The drive unit 351 adopts the above structure to increase the output torque of the drive unit 351. In this case, a low-power drive source can be used to drive the conveyor belt 352a to rotate, thereby conveying the grass clippings in the annular conveying chamber 310. Furthermore, since the first transmission shaft 352b is located at the bottom of the grass conveying mechanism 300, when the drive unit 351 uses a transmission belt to transmit driving force, the drive source can be located in the middle or top of the grass conveying mechanism 300, thereby avoiding interference with the grass pressing wheel 600 located at the bottom of the device body 100.
[0019] In another optional embodiment, the size of the scraper blade 353 is equal to the size of the annular conveying cavity 310 in the width direction of the lawnmower robot (here, the width direction refers to the direction that is perpendicular to both the travel direction and the height direction of the lawnmower robot). The first end of the scraper blade 353 is connected to the conveyor 352, and the second end of the scraper blade 353 (i.e., the free end mentioned above) can contact the inner surface of the device body 100, thereby preventing the grass clippings rolled up by the scraper blade 353 from sliding down the inner surface of the device body 100 during the conveying process, thus improving the grass conveying efficiency of the grass conveying mechanism 300. Of course, there can also be a certain gap between the second end of the scraper blade 353 and the inner surface of the device body 100.
[0020] And / or, in another optional embodiment, the grass scraper 353 can be a rigid structure with high structural strength; or, the grass scraper 353 can deform, i.e., the grass scraper 353 is a deformable structure, such as a plastic structure, etc., which is not specifically limited here. When part of the grass scraper 353 extends beyond the main body 100 of the device through the grass inlet 320, the grass scraper 353 bends and deforms under the force of the grass, utilizing its deformability. At the same time, the conveyor 352 drives the grass scraper 353 to rotate together, so that the grass scraper 353 picks up grass clippings during the process of recovering its deformation and carries the grass clippings into the annular conveying cavity 310, thereby improving the working efficiency of the grass scraper 353. In an optional embodiment, the grass conveying mechanism 300 is inclined, and the angle between the line connecting the bottom and top of the grass conveying mechanism 300 and the direction of travel of the mowing robot is 100~110°. Optionally, the line here specifically refers to the line connecting the first drive shaft 352b and the second drive shaft 352c of the grass conveying mechanism 300. If the inclination angle of the grass conveying mechanism 300 is too small, it will occupy a large space in the direction of travel of the mowing robot; if the inclination angle of the grass conveying mechanism 300 is too large, it will be inconvenient for the first part of the grass conveying mechanism 300 to extend into the receiving cavity of the grass collection box 200. Therefore, the angle between the line connecting the bottom and top of the grass conveying mechanism 300 and the direction of travel of the mowing robot is set to 100~110°. This allows the first part of the grass conveying mechanism 300 to extend into the receiving cavity of the grass collection box 200 while avoiding the grass conveying mechanism 300 occupying a large space in the direction of travel of the mowing robot. Optionally, the angle between the line connecting the bottom and top of the grass conveying mechanism 300 and the direction of travel of the mowing robot can be 105°. Of course, it can also be selected according to actual needs. This application embodiment does not impose specific limitations on this.
[0021] In another optional embodiment, the grass delivery mechanism 300 can partially cover the opening 210 of the grass collection box 200. Since the bottom of the grass delivery mechanism 300 is close to the ground and the top extends into the receiving cavity of the grass collection box 200, the grass delivery mechanism 300 can cover the lower half of the opening 210 of the grass collection box 200. In this case, the grass delivery mechanism 300 can act as a cover for the grass collection box 200, sealing part of the opening 210. The width of the first part of the grass delivery mechanism 300 is equal to the width of the opening 210 of the grass collection box 200, and the ratio of the height of the first part of the grass delivery mechanism 300 to the height of the opening of the grass collection box 200 is 0.5 to 0.75. When the grass delivery mechanism 300 covers part of the opening 210 of the grass collection box 200, this prevents grass clippings inside the grass collection box 200 from leaking from the opening 210, thereby increasing the grass collection capacity of the grass collection box 200 and avoiding frequent emptying of the grass. Of course, the ratio of the height of the first part of the grass conveying mechanism 300 to the height of the opening of the grass collection box 200 can also be less than 0.5, in which case the grass collection capacity of the grass collection box 200 is reduced; or, the ratio of the height of the first part of the grass conveying mechanism 300 to the height of the opening of the grass collection box 200 can also be greater than 0.75, in which case the grass conveying mechanism 300 is prone to interference with other structures on the main body 100 of the device.
[0022] In another optional embodiment, the grass collecting device further includes a lifting mechanism 400, which includes a first lifting component 410 and a second lifting component 420. The first lifting component 410 and the second lifting component 420 are respectively disposed on opposite sides of the grass conveying mechanism 300 in its width direction. The first end of the first lifting component 410 and the first end of the second lifting component 420 are both connected to the device body 100, and the second end of the first lifting component 410 and the second end of the second lifting component 420 are both connected to the grass conveying mechanism 300, so that the grass conveying mechanism 300 is connected to the device body 100 through the lifting mechanism 400, and the grass conveying mechanism 300 can be raised and lowered relative to the device body 100 through the lifting mechanism 400. When the lawnmower robot moves onto uneven grass, the grass conveying mechanism 300 can be raised and lowered relative to the main body 100 via the lifting mechanism 400 to prevent the bottom of the grass conveying mechanism 300 from colliding with the grass. This allows the grass conveying mechanism 300 to be used on grass of different heights and adaptable to various terrains, thereby expanding the applicability of the grass collection device. Furthermore, this design incorporates lifting components on both opposite sides of the grass conveying mechanism 300 in the width direction, which helps to evenly distribute the weight of the grass conveying mechanism 300 and prevents it from tilting during lifting. Of course, the grass conveying mechanism 300 can also be rotatably connected to the main body 100. When the lawnmower robot climbs a slope, the grass conveying mechanism 300 can rotate relative to the main body 100 (i.e., pitch motion) to prevent the bottom of the grass conveying mechanism 300 from being damaged.
[0023] Optionally, at least one of the first lifting component 410 and the second lifting component 420 can be an electric drive device to drive the grass conveying mechanism 300 to lift and lower; or, in other optional embodiments, the device body 100 is provided with a first chute 110 extending along the traveling direction of the mowing robot, and the grass conveying mechanism 300 is provided with a second chute 360 extending along the traveling direction of the mowing robot. The first lifting component 410 and the second lifting component 420 both include a sliding member 411 and a lifting member 412 rotatably connected. The rotation axis of the sliding member 411 and the lifting member 412 is located at the middle position of the sliding member 411 and the middle position of the lifting member 412. The sliding member 411 and the lifting member 412 form a cross structure. Optionally, the sliding member 411 and the lifting member 412 can be rotatably connected by rivets. The first end of the sliding member 411 engages with the first slide groove 110 and can rotate relative to the first slide groove 110. The second end of the sliding member 411 is rotatably connected to the grass conveying mechanism 300. The first end of the lifting member 412 is rotatably connected to the device body 100. The second end of the lifting member 412 is slidably engaged with the second slide groove 360 and can rotate relative to the second slide groove 360. The lifting member 412 can drive the grass conveying mechanism 300 to rise and fall relative to the device body 100.
[0024] During the upward movement of the grass conveying mechanism 300, the first end of the sliding member 411 slides from the first end of the first slide groove 110 to the second end, and the second end of the lifting member 412 slides from the first end of the second slide groove 360 to the second end, thereby increasing the angle between the second end of the sliding member 411 and the second end of the lifting member 412. At this time, the distance between the second end of the lifting member 412 and the first end of the sliding member 411 decreases, so that the grass conveying mechanism 300 rises. During the downward movement of the grass conveying mechanism 300, the first end of the sliding member 411 slides from the second end of the first slide groove 110 to the first end, and the second end of the lifting member 412 slides from the second end of the second slide groove 360 to the first end, thereby decreasing the angle between the second end of the sliding member 411 and the second end of the lifting member 412. At this time, the distance between the second end of the lifting member 412 and the first end of the sliding member 411 increases, so that the grass conveying mechanism 300 descends. The solution uses the aforementioned lifting components, allowing the grass conveying mechanism 300 to adapt to the ground of the grass, thus eliminating the need for an electric drive device to lift the grass conveying mechanism 300. This not only simplifies the structure and reduces costs, but also saves on the power consumption of the lawnmower robot. In a further optional embodiment, the lifting mechanism 400 further includes a connecting plate 430, through which the lifting member 412 of the first lifting assembly 410 is connected to the lifting member 412 of the second lifting assembly 420. Since the grass conveying mechanism 300 has a certain weight, the lifting member 412, as a load-bearing structure, is directly connected to the grass conveying mechanism 300. The connecting plate 430 is provided between the lifting member 412 of the first lifting assembly 410 and the lifting member 412 of the second lifting assembly 420. This enhances the structural strength of the lifting member 412 and prevents damage due to the large weight of the grass conveying mechanism 300. Of course, the connecting plate 430 can also be connected between the sliding member 411 of the first lifting assembly 410 and the sliding member 411 of the second lifting assembly 420; or, the connecting plate 430 may not be provided.
[0025] Optionally, the grass collection device further includes a rotating mechanism 500, which is rotatably mounted on the device body 100 and connected to the grass collection box 200. The rotating mechanism 500 can drive the grass collection box 200 to rotate relative to the device body 100, so that the grass clippings in the receiving cavity of the grass collection box 200 are poured out from its opening 210. It should be noted that the rotating mechanism 500 drives the grass collection box 200 to rotate in a direction away from the device body 100, so that the opening 210 of the grass collection box 200 faces downward, thereby emptying the grass clippings in the receiving cavity.
[0026] Optionally, the grass collection device also includes a grass pressing wheel 600. The grass pressing wheel 600 is located at the bottom of the housing 340 of the grass conveying mechanism 300. The grass pressing wheel 600 is rotatably connected to the housing 340. In the forward direction of the mowing robot, the grass pressing wheel 600 is located in front of the grass inlet 320 of the grass conveying mechanism 300 and behind the mowing device of the mowing robot. After the mowing device cuts grass, the grass clippings formed are scattered on the grass. At this time, the grass pressing wheel 600 presses them down to reduce the height of the grass clippings and increase the density of the grass clippings, so that the grass conveying mechanism 300 can roll the compacted grass clippings into the annular conveying chamber 310.
[0027] Based on the grass collection device provided in the embodiments of this application, the embodiments of this application also provide a lawn mowing robot, which includes a body, a grass mowing device and the grass collection device described in any of the above embodiments. Both the grass mowing device and the grass collection device are disposed on the body, and the grass mowing device is located in front of the grass collection device in the direction of travel of the lawn mowing robot.
[0028] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A grass-collecting device, applied to a lawnmower robot, characterized in that, The device includes a main body (100), a grass collection box (200), and a grass conveying mechanism (300). The grass collection box (200) and the grass conveying mechanism (300) are both located on the main body (100). The grass collection box (200) has an opening (210) extending along the travel direction of the mowing robot. The grass conveying mechanism (300) is provided with an annular conveying cavity (310) and a grass inlet (320) and a grass outlet (330) connected to the annular conveying cavity (310). The grass inlet (320) is located at the bottom of the grass conveying mechanism (300) and is used to allow grass clippings to enter the annular conveying cavity (310). The grass outlet (330) is located at the top of the grass conveying mechanism (300). The first part of the grass conveying mechanism (300) extends through the opening (210) into the receiving cavity of the grass collection box (200) so that the grass outlet (330) is located in the receiving cavity of the grass collection box (200).
2. The grass-collecting device according to claim 1, characterized in that, The grass conveying mechanism (300) includes a housing (340) and a conveying assembly (350). The grass inlet (320) and the grass outlet (330) are both located in the housing (340). The conveying assembly (350) is located inside the housing (340). The housing (340) has a protrusion (341) that is sealed to the lower edge of the opening (210). The conveying assembly (350) includes a drive member (351), a conveyor (352), and a scraper (353). The drive member (351) is disposed on the outer surface of the housing (340). The conveyor (352) and the inner surface of the device body (100) form the annular conveying cavity (310). The scraper (353) is disposed on the circumferential surface of the conveyor (352). A portion of the scraper (353) can extend beyond the device body (100) through the grass inlet (320) so that the grass clippings are rolled into the annular conveying cavity (310) by the scraper (353). The drive member (351) is connected to the conveyor (352) and can drive the conveyor (352) to move so that the grass clippings in the annular conveying cavity (310) are conveyed to the grass outlet (330).
3. The grass-collecting device according to claim 2, characterized in that, The conveyor (352) includes a conveyor belt (352a), a first drive shaft (352b), and a second drive shaft (352c). The first drive shaft (352b) and the second drive shaft (352c) are spaced apart and are rotatably connected to the device body (100). The first drive shaft (352b) is located at the bottom of the grass conveying mechanism (300), and the first end of the first drive shaft (352b) passes through the device body (100) and is connected to the drive member (351). The conveyor belt ( 352a) is rotatably sleeved on the first drive shaft (352b) and the second drive shaft (352c). The conveyor belt (352a) and the inner surface of the device body (100) form the annular conveying cavity (310). The driving member (351) can drive the conveyor belt (352a) to rotate through the first drive shaft (352b). The grass scraper (353) is disposed on the circumferential surface of the conveyor belt (352a). The number of grass scrapers (353) is at least two. Each grass scraper (353) is arranged at intervals along the rotation direction of the conveyor belt (352a).
4. The grass-collecting device according to claim 2, characterized in that, In the width direction of the mowing robot, the size of the scraper blade (353) is equal to the size of the annular conveying cavity (310). The first end of the scraper blade (353) is connected to the conveyor (352), and the second end of the scraper blade (353) can contact the inner surface of the device body (100). And / or, the grass scraper (353) may deform.
5. The grass-collecting device according to claim 1, characterized in that, The grass conveying mechanism (300) is inclined, and the angle between the line connecting the bottom and the top of the grass conveying mechanism (300) and the direction of travel of the mowing robot is 100~110°.
6. The grass-collecting device according to claim 1, characterized in that, The grass delivery mechanism (300) can cover part of the opening (210). The width of the first part is equal to the width of the opening (210), and the ratio of the height of the first part to the height of the opening is 0.5 to 0.
75.
7. The grass-collecting device according to claim 1, characterized in that, The grass collecting device further includes a lifting mechanism (400), which includes a first lifting component (410) and a second lifting component (420). The first lifting component (410) and the second lifting component (420) are respectively disposed on opposite sides of the grass conveying mechanism (300) in its width direction. The first end of the first lifting component (410) and the first end of the second lifting component (420) are both connected to the main body of the device (100), and the second end of the first lifting component (410) and the second end of the second lifting component (420) are both connected to the grass conveying mechanism (300), so that the grass conveying mechanism (300) is connected to the main body of the device (100) through the lifting mechanism (400), and the grass conveying mechanism (300) can be raised and lowered relative to the main body of the device (100) through the lifting mechanism (400).
8. The grass-collecting device according to claim 7, characterized in that, The main body (100) of the device is provided with a first chute (110) extending along the traveling direction of the mowing robot, and the grass conveying mechanism (300) is provided with a second chute (360) extending along the traveling direction of the mowing robot. Both the first lifting assembly (410) and the second lifting assembly (420) include a sliding member (411) and a lifting member (412) that are rotatably connected. The first end of the sliding member (411) is engaged with the first slide groove (110) and the first end of the sliding member (411) can rotate relative to the first slide groove (110). The second end of the sliding member (411) is rotatably connected with the grass conveying mechanism (300). The first end of the lifting member (412) is rotatably connected with the device body (100). The second end of the lifting member (412) is slidably engaged with the second slide groove (360) and the second end of the lifting member (412) can rotate relative to the second slide groove (360). The lifting member (412) can drive the grass conveying mechanism (300) to rise and fall relative to the device body (100).
9. The grass-collecting device according to claim 8, characterized in that, The lifting mechanism (400) further includes a connecting plate (430), through which the lifting member (412) of the first lifting assembly (410) is connected to the lifting member (412) of the second lifting assembly (420).
10. A lawnmower robot, characterized in that, The robot includes a body, a mowing device, and a grass-collecting device as described in any one of claims 1 to 9, wherein both the mowing device and the grass-collecting device are disposed on the body, and the mowing device is located in front of the grass-collecting device in the direction of travel of the mowing robot.