Intelligent lawn cleaning device

Abstract

The utility model discloses an intelligent lawn cleaning device which comprises a running assembly, a lawn cleaning assembly and a lawn cleaning assembly, and the running assembly comprises a frame, a driving unit and wheels; the cutting assembly comprises a negative pressure cover, a cutter head, a sliding unit and a rotating unit, the negative pressure cover faces downwards, the bottom of the negative pressure cover is adjacent to the ground, a negative pressure opening communicated with an inner cavity of the negative pressure cover is formed in the negative pressure cover, and the rotating unit is connected with the cutter head through the sliding unit; the collecting assembly comprises a collecting box; the input end of the negative-pressure pump is communicated with the negative-pressure opening, and the output end of the negative-pressure pump is communicated with the inner cavity of the collecting box. Compared with the prior art, the intelligent lawn cleaning device has the advantages that the cutter head can conveniently slide to be flush with the bottom of the negative pressure cover through the sliding unit, the bottom of the negative pressure cover is adjacent to the ground, the mowing effect is guaranteed, meanwhile, soil is prevented from being damaged, negative pressure is generated in the negative pressure cover through the negative pressure pump, and grass clippings generated by mowing are fed into the collecting box; the grass clippings do not need to be manually collected, the automation degree is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent robots, in particular to an intelligent lawn cleaning device. Background Art

[0002] Using smart robots for lawn mowing is a modern management method. By adopting advanced smart robot technology, it can realize automated and intelligent lawn mowing. By being equipped with advanced navigation systems and autonomous decision-making algorithms, smart robots can independently plan mowing paths. Compared with traditional lawn mowers, the degree of automation and intelligence is greatly improved, and no manual operation is required, thereby reducing labor costs.

[0003] However, when existing intelligent robot lawn mowers are weeding, the height of the blade used for mowing is fixed, and it is difficult to adjust it appropriately according to the height of the lawn. When the lawn is at a low level, the mowing position is too high, resulting in incomplete mowing. When the lawn is at a high level, the blade is likely to damage the soil. In addition, after mowing, grass clippings need to be cleaned manually, and the degree of automation of lawn cleaning devices still has room for further improvement.

[0004] Therefore, it is necessary to improve the lawn cleaning device in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects in the prior art and provide an intelligent lawn cleaning device which can flexibly adjust the height of the blade according to the terrain to ensure the mowing effect and avoid damaging the soil, and automatically collect grass clippings to further improve the degree of automation, thereby reducing labor costs.

[0006] In order to achieve the above technical effects, the technical solution of the utility model is: an intelligent lawn cleaning device, comprising:

[0007] A travel assembly, the travel assembly comprising a frame, a drive unit and wheels, the wheels and the drive unit are both arranged on the frame, and the drive unit drives the wheels to rotate around their own axis;

[0008] A cutting assembly, wherein the cutting assembly is arranged on one side of the cutting assembly, and the cutting assembly comprises a negative pressure cover, a cutter disc, a sliding unit and a rotating unit. The negative pressure cover is downward and the bottom is adjacent to the ground where the wheel is located. The negative pressure cover is provided with a negative pressure port connected to its own inner cavity. The rotating unit is connected to the cutter disc through the sliding unit, so that the cutter disc slides along the height direction of the negative pressure cover until it is flush with the bottom of the negative pressure cover and the cutter disc rotates;

[0009] A collecting assembly, the collecting assembly comprising a collecting box, the collecting box comprising a box body and a box cover, the box body having an open top and disposed on the vehicle frame, the box cover being movable and disposed on the box body to enclose an inner cavity of the collecting box;

[0010] A negative pressure pump, wherein the input end of the negative pressure pump is connected to the negative pressure port, and the output end of the negative pressure pump is connected to the inner cavity of the collection box.

[0011] Preferably, in order to ensure that the bottom of the negative pressure hood is always close to the ground, the negative pressure hood includes a fixed hood and a sliding sleeve, the fixed hood opens downward and is fixedly connected to the input end of the negative pressure pump, the sliding sleeve slides on the bottom of the fixed hood along the height direction of the fixed hood, and the fixed hood is circumferentially sealed to the sliding sleeve.

[0012] Preferably, in order to reduce the friction between the bottom of the sliding sleeve and the lawn, a rolling element is provided at the bottom of the sliding sleeve.

[0013] Preferably, in order to further reduce the friction between the sliding sleeve and the lawn, the rolling element is a ball protruding from the bottom surface of the sliding sleeve, and the ball rotates on the sliding sleeve around its own spherical center.

[0014] Preferably, in order to achieve the blade disc being close to the ground and avoiding damaging the soil when mowing, the sliding unit includes a fixed shaft and a sliding shaft with coaxial centerlines, the fixed shaft being radially fixedly connected to the sliding shaft and circumferentially slidingly connected, the fixed shaft seal passes through the top of the negative pressure cover and is connected to the rotating unit, the sliding shaft is connected to the blade disc and rotates around its own axis on the inner side of the sliding sleeve.

[0015] Preferably, in order to ensure that the fixed shaft and the sliding shaft can rotate stably around their respective axis centers, the fixed shaft and the sliding shaft are respectively connected with a locating bearing and a movable bearing, the outer ring and the inner ring of the locating bearing are respectively fixedly connected to the fixed cover and the fixed shaft, and the outer ring and the inner ring of the movable bearing are respectively fixedly connected to the sliding sleeve and the sliding shaft.

[0016] Preferably, in order to facilitate the cutting component to mow according to the driving path of the traveling component, expand the mowing range and improve work efficiency, the cutting component is arranged at one end of the traveling component, and the cutting range of the cutting component is adjacent to or flush with the vertical planes on both sides of the traveling component.

[0017] Preferably, in order to ensure the compactness of the device structure, the cutter disc and the sliding unit are both provided with a plurality of them and are connected one-to-one.

[0018] Preferably, in order to achieve synchronous rotation of multiple cutter discs, the rotating unit includes a rotating motor, a synchronous belt and a synchronous wheel. The synchronous wheels are provided in plurality and are connected one-to-one with the sliding units. The synchronous wheels are connected to each other through the synchronous belt transmission. The rotating motor is fixed to the top of the negative pressure hood and the output end is connected to one of the synchronous wheels.

[0019] Preferably, in order to facilitate the introduction of grass clippings produced by cutting into a collection box, the cutting assembly also includes a guide tube, the guide tube includes an outlet end connected to the input end of the negative pressure pump and an inlet end connected to the negative pressure port, the size of the inlet end is larger than the size of the outlet end, and the inlet end is gradually transitioned to the outlet end.

[0020] To sum up, compared with the prior art, the intelligent lawn cleaning device of the utility model can conveniently slide the blade disc to be flush with the bottom of the negative pressure cover through the sliding unit, and utilize the bottom of the negative pressure cover to be adjacent to the ground, thereby ensuring the mowing effect while avoiding damage to the soil. A negative pressure pump is used to generate negative pressure in the negative pressure cover, and grass clippings generated by mowing are sent to a collection box. There is no need to manually collect grass clippings, which improves the degree of automation and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0023] Figure 3 yes Figure 1 A top view of

[0024] Figure 4 yes Figure 1 Side view of

[0025] Figure 5 It is a structural schematic diagram of the travel assembly of the utility model;

[0026] Figure 6 yes Figure 5 Explosion diagram of

[0027] Figure 7 It is a structural schematic diagram of the cutting assembly of the utility model;

[0028] Figure 8 yes Figure 7 A schematic diagram of the cross-sectional structure of;

[0029] Fig. 9 yes Figure 7 Explosion diagram of

[0030] Fig.10This is a schematic diagram of the structure of the collection assembly box cover of the utility model when it is opened;

[0031] Fig.11 This is a schematic diagram of the structure of the utility model when the box cover of the collection component is closed;

[0032] Fig.12 yes Fig.11 A schematic diagram of the cross-sectional structure of;

[0033] Fig.13 yes Fig.11 Explosion diagram of

[0034] In the figure: 1, travel assembly; 11, frame; 111, chassis; 112, vertical tube; 113, bottom plate; 12, drive unit; 121, drive motor; 122, driving wheel; 123, driven wheel; 124, crawler track; 125, driving shaft; 126, driven shaft; 13, wheel; 2, cutting assembly; 21, negative pressure cover; 211, fixed cover; 212, sliding sleeve; 213, negative pressure port; 214, guide rod; 215, guide sleeve; 216, limit block; 22, cutter head; 221, disc; 222, blade; 223, screw; 23, sliding unit; 231, fixed shaft; 2311, bump; 232, sliding shaft; 2321, sliding port; 24, rotating unit Element; 241, rotating motor; 242, synchronous belt; 243, synchronous wheel; 25, rolling element; 26, positioning bearing; 27, movable bearing; 28, guide tube; 281, outlet end; 282, inlet end; 3, collecting assembly; 31, collecting box; 311, box body; 312, box cover; 3121, compression cover; 3122, flange; 3123, first locking hole; 313, feed inlet; 314, convex plate; 315, vertical axis; 316, convex cover; 32, collecting barrel; 321, handle; 33, compression unit; 331, compression block; 332, translation unit; 34, locking unit; 341, locking plate; 3411, second locking hole; 35, locking pin; 4, negative pressure pump. DETAILED DESCRIPTION

[0035] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0036] like Figure 1-Figure 13 As shown, the intelligent lawn cleaning device of the utility model comprises:

[0037] The traveling component 1 includes a frame 11, a driving unit 12 and a wheel 13. The wheel 13 and the driving unit 12 are both arranged on the frame 11. The driving unit 12 drives the wheel 13 to rotate around its own axis.

[0038] The cutting assembly 2 is arranged on one side of the cutting assembly 2. The cutting assembly 2 includes a negative pressure cover 21, a cutter disc 22, a sliding unit 23 and a rotating unit 24. The negative pressure cover 21 is downward and the bottom is adjacent to the ground where the wheel 13 is located. The negative pressure cover 21 is provided with a negative pressure port 213 connected to its own inner cavity. The rotating unit 24 is connected to the cutter disc 22 through the sliding unit 23, so that the cutter disc 22 slides along the height direction of the negative pressure cover 21 until it is flush with the bottom of the negative pressure cover 21 and the cutter disc 22 rotates;

[0039] The collecting assembly 3 includes a collecting box 31, a collecting barrel 32 and a compression unit 33. The collecting box 31 is provided with a feed port 313 communicating with its inner cavity. The collecting box 31 includes a box body 311, a box cover 312 and a locking unit 34. The box body 311 is open at the top and is arranged on the vehicle frame 11. The box cover 312 is movable and is arranged on the box body 311. The locking unit 34 is used to lock the box cover 312 on the box body 311 to enclose the inner cavity of the collecting box 31. The collecting barrel 32 is open at the top and is detachably arranged below the feed port 313 in the collecting box 31. The compression assembly is used to compact the grass clippings entering the collecting barrel 32.

[0040] The negative pressure pump 4 has an input end connected to the negative pressure port 213 , and an output end connected to the inner cavity of the collection box 31 .

[0041] Compared with the prior art, the intelligent lawn cleaning device of the utility model facilitates the blade disc 22 to slide flush with the bottom of the negative pressure cover 21 through the sliding unit 23, and the bottom of the negative pressure cover 21 is adjacent to the ground where the wheel 13 is located. In this way, when the device is in use, the negative pressure cover 21 and the blade disc 22 can be close to the ground, and the rotation unit 24 controls the rotation of the blade disc 22 to cut the excessively growing grass on the lawn, thereby improving the weeding effect and avoiding the rotating blade disc 22 from damaging the ground. Moreover, during the weeding process, the negative pressure pump 4 is started to extract the air in the negative pressure cover 21 through the negative pressure port 213, so that a negative pressure is formed inside the negative pressure cover 21, and the bottom of the negative pressure cover 21 is close to the ground. The grass clippings generated after the blade disc 22 is cut are concentrated in the negative pressure cover 21, and the negative pressure causes the generated grass clippings to be sucked into the collection box 31 by the negative pressure pump 4. In this way, there is no need to manually collect the grass clippings generated by weeding, which further improves the degree of automation and reduces labor costs.

[0042] In addition, a detachable collecting barrel 32 is provided inside the collecting box 31 of the utility model. In the initial state of the device, the box body 311 and the box cover 312 are locked and connected by a locking unit 34. The box cover 312 is arranged on the top of the box body 311. The collecting barrel 32 is located in the collecting box 31 and below the feed port 313. When the negative pressure pump 4 and the rotating unit 24 are started, the grass clippings generated are discharged by the negative pressure pump 4 and fall into the collecting barrel 32 through the feed port 313, thereby realizing automatic collection of grass clippings. Since the gaps between the collected grass clippings are large, the grass clippings in the collecting barrel 32 can be compressed by the compression unit 33, thereby increasing the amount of grass clippings collected and avoiding frequent removal of the collecting barrel 32 and pouring out of the grass clippings.

[0043] After the device has been used for a period of time, the locking connection between the box body 311 and the box cover 312 by the locking unit 34 is removed, thereby facilitating the movable box cover 312. After the box body 311 is opened so that its top is exposed, the collecting bucket 32 ​​is taken out, and after the grass clippings in the collecting bucket 32 ​​are poured out, the collecting bucket 32 ​​can be installed inside the box body 311 again, and the box cover 312 is closed. The two are locked and connected by the locking unit 34 so that the device can continue to be used for mowing, thus making the device more convenient and quick to use.

[0044] The specific structure of the travel component 1 of the utility model is as follows Figure 5 and Figure 6 As shown, the frame 11 includes a bottom frame 111, a vertical tube 112 and a bottom plate 113, the bottom plate 113 is fixed to the top of the bottom frame 111 through a plurality of vertical tubes 112, two pairs of wheels 13 are provided, which are respectively arranged on both sides of the bottom frame 111, each pair of wheels 13 includes a front wheel and a rear wheel, two drive units 12 are provided, which are connected to the two pairs of wheels 13 in a one-to-one correspondence, and specifically, the drive unit 12 includes a drive motor 121, a driving wheel 122, and a driven wheel 123. Wheel 123, crawler track 124, driving shaft 125 and driven shaft 126, wherein the driving motor 121 is fixed on the chassis 111, and its output end is fixedly connected with the driving wheel 122 and the front wheel coaxially through the driving shaft 125, and the driven shaft 126 rotates around its own axis on the chassis 111, and the driven wheel 123, the driven shaft 126 and the rear wheel are fixedly connected coaxially, and the driving wheel 122 is connected to the driven wheel 123 through the crawler track 124.

[0045] After adopting the above structure, the driving motor 121 drives the front wheel and the driving wheel 122 to rotate around their respective axis lines through the driving shaft 125. At the same time, the driving wheel 122 drives the driven wheel 123 to rotate through the track 124, and the driven wheel 123 drives the rear wheel to rotate through the driven shaft 126, so that the front wheel and the rear wheel rotate at the same time, realizing the driving function of the device; when the rotation speeds of the wheels 13 on both sides of the chassis 111 are consistent, the device goes straight, and when the rotation speeds of the wheels 13 on both sides are inconsistent, the device turns. Since the wheels 13 on both sides of the chassis 111 are rotated by two independent driving units 12, a large rotation speed difference between the wheels 13 on both sides of the chassis 111 can be achieved, which not only facilitates the device to make a sharp turn, but also reduces the requirements for the size of the turning site, and is conducive to improving the driving efficiency when turning.

[0046] The negative pressure pump 4 and the box body 311 are both fixed above the bottom plate 113 .

[0047] A further improvement is that the negative pressure cover 21 includes a fixed cover 211 and a sliding sleeve 212. The fixed cover 211 opens downward and is fixedly connected to the input end of the negative pressure pump 4. The sliding sleeve 212 slides at the bottom of the fixed cover 211 along the height direction of the fixed cover 211. The fixed cover 211 and the sliding sleeve 212 are circumferentially sealed.

[0048] Specifically, Figure 1 , Figure 2 , Figure 7 and Fig. 9 As shown, the negative pressure cover 21 mainly includes a fixed cover 211 and a sliding sleeve 212, both of which extend in the vertical direction, the circumferential outer edge of the lower part of the negative pressure cover 21 is sealed with the circumferential inner wall of the upper part of the sliding sleeve 212, and the negative pressure port 213 is arranged on the side of the negative pressure cover 21 adjacent to the frame 11, forming the main structure of the negative pressure cover 21, and the relative sliding of the two makes it convenient to adjust the overall height of the negative pressure cover 21 according to the gravity of the sliding sleeve 212 itself, so as to ensure that the bottom of the negative pressure cover 21, that is, the bottom of the sliding sleeve 212 is in contact with the ground; in order to further ensure the sliding limit connection between the two, the outer ends of the sliding sleeve 212 are fixed with guide rods 214 extending upward, and the outer ends of the negative pressure cover 21 are fixed with guide sleeves 215 slidingly matched with the guide rods 214, and the top of the guide rods 214 is integrally connected with the limit block 216, so that the fixed cover 211 and the sliding sleeve 212 can be stably slidingly limited.

[0049] A further improvement is that a rolling member 25 is provided at the bottom of the sliding sleeve 212 ; the rolling member 25 is a ball protruding from the bottom surface of the sliding sleeve 212 , and the ball rotates on the sliding sleeve 212 around its own spherical center.

[0050] Specifically, Figure 2 and Figure 8As shown, the outer circumferential edge of the bottom of the sliding sleeve 212 is integrally connected with a rectangular frame, and a rolling member 25 is arranged on the bottom surface of the rectangular frame. The rolling member 25 is distributed along the circumference of the rectangular frame, and the rolling member 25 is a ball. After adopting the above structure, the rolling member 25 is in contact with the ground, so that the bottom of the negative pressure cover 21 and the cutter disc 22 are close to the ground and maintain a certain gap with the ground, so as to avoid damage to the soil when the cutter disc 22 rotates, and ensure the cutting and cleaning effect of the cutter disc 22 on the weeds on the lawn; in addition, the rolling member 25 is a ball, which is convenient for rotating in any direction with its own ball center as the center, so that after the rolling member 25 contacts the ground, it rotates as the travel component 1 moves forward, reducing its friction with the ground.

[0051] A further improvement is that the sliding unit 23 includes a fixed shaft 231 and a sliding shaft 232 with coaxial centerlines, the fixed shaft 231 and the sliding shaft 232 are radially fixedly connected and circumferentially slidably connected, the fixed shaft 231 seals and passes through the top of the negative pressure cover 21 and is connected to the rotating unit 24, the sliding shaft 232 is connected to the cutter disc 22 and rotates around its own axis on the inner side of the sliding sleeve 212; the fixed shaft 231 and the sliding shaft 232 are respectively connected with a locating bearing 26 and a movable bearing 27, the outer ring and the inner ring of the locating bearing 26 are respectively fixedly connected to the fixed cover 211 and the fixed shaft 231, and the outer ring and the inner ring of the movable bearing 27 are respectively fixedly connected to the sliding sleeve 212 and the sliding shaft 232.

[0052] Specifically, if Figure 8 and Fig. 9As shown, the outer ring of the positioning bearing 26 is fixed to the top of the fixed cover 211, and the inner ring is fixedly connected to the outer wall of the fixed shaft 231. The outer ring of the movable bearing 27 is fixedly connected to the inner wall of the sliding sleeve 212, and the inner ring is fixedly connected to the outer wall of the sliding shaft 232. The fixed shaft 231 rotates on the fixed cover 211 around its own axis, and the top of the sliding shaft 232 is slidably sleeved outside the bottom of the fixed shaft 231 and is provided with a sliding mouth 2321 extending parallel to its own axial direction. A convex block 2311 is provided on the outer side of the bottom of the fixed shaft 231, and the convex block 2311 is slidably matched with the sliding mouth 2321. In this way, the axial sliding connection and radial fixed connection between the fixed shaft 231 and the sliding shaft 232 are realized. Specifically, When the rotating unit 24 drives the fixed shaft 231 to rotate, the fixed shaft 231 drives the protrusion 2311 to rotate, acting on the inner wall of the sliding opening 2321, so that the sliding shaft 232 rotates around its own axis while the cutter disc 22 rotates; and when the sliding sleeve 212 slides along the fixed cover 211, the sliding sleeve 212 drives the sliding shaft 232 to slide along its own height direction through the movable bearing 27, and utilizes the sliding cooperation between the sliding opening 2321 and the protrusion 2311 to achieve stable sliding of the sliding shaft 232 in its own axial direction, and through the positioning bearing 26 and the movable bearing 27, the coaxiality between the fixed shaft 231 and the sliding shaft 232 is guaranteed, and the rotation of the two and the cutter disc 22 is facilitated.

[0053] The blade disc 22 includes a disc 221, a blade 222 and a screw 223, wherein the disc 221 is fixed to the bottom of the sliding shaft 232 by the screw 223, and the blades 222 are distributed in a ring array on the outer circumference of the disc 221. The sliding shaft 232 drives the blades 222 to rotate through the disc 221, and the blades 222 are used to cut the weeds on the lawn, thereby realizing the lawn mowing function.

[0054] A further improvement is that the cutting assembly 2 is arranged at one end of the traveling assembly 1, and the cutting range of the cutting assembly 2 is adjacent to or flush with the vertical planes on both sides of the traveling assembly 1. Specifically, in the present invention, the cutting range of the cutting assembly 2 is flush with the vertical planes on both sides of the bottom plate 113, and the projections of the wheels 13, the drive unit 12, the bottom frame 111, and the vertical pipe 112 on the horizontal plane are all located on the projection of the bottom plate 113 on the horizontal plane. In this way, the cutting range of the cutting assembly 2 is guaranteed, and the width of the cutting range is guaranteed to be consistent with the width of the bottom plate 113, thereby improving the cutting efficiency.

[0055] A further improvement is that the cutter disc 22 and the sliding unit 23 are both provided with multiple and one-to-one corresponding connections. The rotating unit 24 includes a rotating motor 241, a synchronous belt 242 and a synchronous wheel 243, wherein multiple synchronous wheels 243 are provided and connected one-to-one with the sliding unit 23, and the synchronous wheels 243 are connected to each other through the synchronous belt 242. The rotating motor 241 is fixed to the top of the negative pressure cover 21 and the output end is connected to one of the synchronous wheels 243.

[0056] Specifically, Figure 8 and Fig. 9 As shown, in the utility model, three cutter discs 22, sliding units 23 and synchronous wheels 243 are provided. The casing of the rotating motor 241 is fixed downwardly to the top of the fixed cover 211, and the output end is connected to one of the synchronous wheels 243 coaxially. The three synchronous wheels 243 correspond to the three fixed shafts 231 one by one and are fixedly connected coaxially. After adopting this design, one of the synchronous wheels 243 is driven to rotate by the rotating motor 241, and the remaining two synchronous wheels 243 are driven to rotate by the synchronous belt 242. In this way, the three sliding units 23 and the cutter disc 22 at the bottom of the sliding unit 23 are rotated to achieve a wide range of mowing functions.

[0057] A further improvement is that the cutting assembly 2 also includes a guide tube 28, which includes an outlet end 281 connected to the input end of the negative pressure pump 4 and an inlet end 282 connected to the negative pressure port 213, the size of the inlet end 282 is larger than the size of the outlet end 281, and the inlet end 282 is gradually transitioned to the outlet end 281.

[0058] Specifically, the negative pressure port 213 is in the shape of a long strip, and its length direction is parallel to the width direction of the frame 11. The inlet end 282 of the guide tube 28 matches the negative pressure port 213, and the outlet end 281 is in the shape of a circular ring. The outer diameter of the outlet end 281 is smaller than the length and width dimensions of the inlet end 282, which is convenient for docking with the input end of the negative pressure pump 4.

[0059] A further improvement is that the circumferential outer edge of the collecting barrel 32 is sealedly connected to the circumferential inner wall of the box body 311 , and the collecting barrel 32 and the box body 311 are plug-fitted.

[0060] After adopting this design, if Fig.12 As shown, the length and width of the collecting barrel 32 are increased, thereby expanding the capacity of the collecting barrel 32, while preventing the collecting barrel 32 from shaking back and forth in the box body 311, thereby ensuring a stable connection between the collecting barrel 32 and the box body 311.

[0061] A further improvement is that the box cover 312 is integrally formed with a compression cover 3121. When the box cover 312 is placed on the box body 311, the compression cover 3121 faces the box body 311 and the circumferential inner wall of the compression cover 3121 is adjacent to the circumferential inner wall of the collection barrel 32, and the compression unit 33 is connected to the compression cover 3121.

[0062] Specifically, the compression unit 33 is installed in the compression cover 3121 to protect the compression unit 33. Further specifically, the compression unit 33 includes a compression block 331 and a translation unit 332. The circumferential outer edge of the compression block 331 is sealed with the circumferential inner wall of the compression cover 3121. The translation unit 332 is arranged on the compression cover 3121 and drives the compression block 331 to move along the height direction of the compression cover 3121.

[0063] like Fig.12 and Fig.13 As shown, a notch is provided on the side of the compression block 331 facing away from the box body 311, and the translation unit 332 is a translation cylinder, whose cylinder barrel is fixedly connected to the compression cover 3121, and the piston rod is fixedly connected to the inner bottom wall of the notch. After adopting the above design, during the mowing process, the compression block 331 can be regularly controlled by the translation cylinder to reciprocate along the axial direction of the translation cylinder, so as to compact the grass clippings entering the collection barrel 32, avoid the gaps between the grass clippings being too large and occupying most of the space, and reduce the grass clippings collection amount of the collection assembly 3; and the projection of the compression block 331 on the horizontal plane is located within the projection of the collection barrel 32 on the horizontal plane, and the projection edge of the compression block 331 on the horizontal plane is adjacent to the projection edge of the barrel mouth of the collection barrel 32 on the horizontal plane, so that the compression area of ​​the compression block 331 is increased, ensuring that when the translation unit 332 drives the compression block 331 to move, most of the grass clippings in the collection barrel 32 can be compacted.

[0064] A further improvement is that a handle 321 is provided on the top of the collecting barrel 32 , the handle 321 is separated from the movable range of the compression block 331 , and the handle 321 abuts against the bottom of the box cover 312 provided on the box body 311 .

[0065] Specifically, if Fig.12 and Fig.13 As shown, an inner convex frame is provided on the inner wall at the top of the collecting bucket 32, and the top surfaces of the four sides of the inner convex frame are provided with upward handles 321. The handles 321 not only facilitate the installation of the collecting bucket 32 ​​in the box body 311, but also allow the collecting bucket 32 ​​to be taken out of the box body 311 after the collecting bucket 32 ​​has collected the grass clippings. Moreover, when the collecting bucket 32 ​​is installed in the box body 311, the box cover 312 is closed and the box body 311 and the box cover 312 are locked by the locking unit 34, the box cover 312 abuts against the top of the handle 321, and the bottom of the collecting bucket 32 ​​abuts against the inner bottom wall of the box body 311, thereby fixing the position of the collecting bucket 32 ​​and preventing the device from shaking due to ups and down bumps during driving.

[0066] A further improvement is that the box cover 312 rotates on the box body 311 and the axis of rotation extends in the horizontal direction. Specifically, the feed inlet 313 is arranged at the top of the side wall of the box body 311 adjacent to the negative pressure pump 4, and the side wall of the box body 311 facing away from the feed inlet 313 is connected to the box cover 312 through a hinge, so that the box cover 312 can be turned over to the position as shown in the figure. Fig.10 The state shown is to remove the collection bucket 32 ​​or install the collection bucket 32 ​​in the box body 311.

[0067] A further improvement is that the locking unit 34 includes a locking plate 341 arranged on the outside of the box body 311, and the locking plate 341 rotates around the vertical direction between a locking position and a movable position. The locking plate 341 in the locking position is used to lock the box cover 312 on the box body 311, and the locking plate 341 in the movable position is separated from the box cover 312.

[0068] There are two locking units 34, which are arranged on both sides of the collection box 31. Specifically, a first locking hole 3123 is arranged on the box cover 312, and a second locking hole 3411 is arranged on the locking plate 341. The first locking hole 3123 is plugged into and matched with the second locking hole 3411 through a locking pin 35; the box cover 312 also includes a flange 3122 arranged on the circumferential outer edge of the bottom of the compression cover 3121, and the first locking hole 3123 is arranged on the flange 3122.

[0069] like Figure 10-13 As shown, a horizontal convex plate 314 is provided on the outer side of the box body 311, and a vertical shaft 315 extending upward is fixed on the convex plate 314, and a convex cover 316 is integrally connected to the top of the vertical shaft 315. The locking plate 341 is in the shape of a long strip, and one end of the locking plate 341 is sleeved outside the vertical shaft 315 to facilitate the rotation of the locking plate 341. The other end of the locking plate 341 is provided with a second locking hole 3411, and a locking pin 35 is penetrated inside the second locking hole 3411; the flange 3122 is integrally formed on the outer side of the bottom of the compression cover 3121, and the first locking hole 3123 is provided on the flange 3122.

[0070] After adopting the above design, if Fig.10 As shown, the box cover 312 is in an open state, and the locking plate 341 is in an active position. Even if the box cover 312 is placed on the box body 311 , the locking plate 341 is separated from the box cover 312 .

[0071] When the box cover 312 is placed on the box body 311, the locking plate 341 is rotated around the axis of the vertical axis 315 so that the end of the locking plate 341 away from the vertical axis 315 presses the flange 3122 against the box body 311 to lock the box body 311. Fig.11 and Fig.12As shown, the locking plate 341 is rotated until the second locking hole 3411 is aligned with the first locking hole 3123, and then the locking pin 35 is inserted to fix the position of the locking plate 341, thereby ensuring a good locking effect between the box body 311 and the box cover 312.

[0072] A further improvement is that the first locking hole 3123 is a threaded hole, and the locking pin 35 is a screw rod adapted to the threaded hole. With this design, a firm connection between the locking pin 35 and the flange 3122 can be ensured, and the locking pin 35 is prevented from jumping out of the first locking hole 3123 and the second locking hole 3411, thereby further strengthening the locking connection between the box body 311 and the box cover 312.

[0073] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent lawn cleaning device, characterized in that: include: A traveling assembly (1), the traveling assembly (1) comprising a frame (11), a drive unit (12) and a wheel (13), the wheel (13) and the drive unit (12) being both arranged on the frame (11), and the drive unit (12) driving the wheel (13) to rotate around its own axis; A cutting assembly (2), wherein the cutting assembly (2) is arranged on one side of the cutting assembly (2), and the cutting assembly (2) comprises a negative pressure cover (21), a cutter disc (22), a sliding unit (23) and a rotating unit (24); the negative pressure cover (21) is downwardly facing and the bottom thereof is adjacent to the ground where the wheel (13) is located; the negative pressure cover (21) is provided with a negative pressure port (213) which is in communication with its inner cavity; the rotating unit (24) is connected to the cutter disc (22) via the sliding unit (23) so that the cutter disc (22) slides along the height direction of the negative pressure cover (21) until it is flush with the bottom of the negative pressure cover (21) and the cutter disc (22) rotates; A collection assembly (3), the collection assembly (3) comprising a collection box (31), the collection box (31) comprising a box body (311) and a box cover (312), the box body (311) having an open top and disposed on the vehicle frame (11), the box cover (312) being movably disposed on the box body (311) to enclose and form an inner cavity of the collection box (31); A negative pressure pump (4), wherein the input end of the negative pressure pump (4) is connected to the negative pressure port (213), and the output end of the negative pressure pump (4) is connected to the inner cavity of the collection box (31).

2. The intelligent lawn cleaning device according to claim 1, characterized in that: The negative pressure cover (21) comprises a fixed cover (211) and a sliding sleeve (212); the fixed cover (211) opens downward and is fixedly connected to the input end of the negative pressure pump (4); the sliding sleeve (212) slides at the bottom of the fixed cover (211) along the height direction of the fixed cover (211); and the fixed cover (211) and the sliding sleeve (212) are circumferentially sealed and connected.

3. The intelligent lawn cleaning device according to claim 2, characterized in that: A rolling element (25) is provided at the bottom of the sliding sleeve (212).

4. The intelligent lawn cleaning device according to claim 3, characterized in that: The rolling element (25) is a ball that protrudes from the bottom surface of the sliding sleeve (212), and the ball rotates on the sliding sleeve (212) around its own spherical center.

5. The intelligent lawn cleaning device according to claim 2, characterized in that: The sliding unit (23) comprises a fixed shaft (231) and a sliding shaft (232) with coaxial centerlines, wherein the fixed shaft (231) and the sliding shaft (232) are radially fixedly connected and circumferentially slidably connected, the fixed shaft (231) seals through the top of the negative pressure cover (21) and is connected to the rotating unit (24), and the sliding shaft (232) is connected to the cutter disc (22) and rotates around its own axis on the inner side of the sliding sleeve (212).

6. The intelligent lawn cleaning device according to claim 5, characterized in that: The fixed shaft (231) and the sliding shaft (232) are respectively connected to a locating bearing (26) and a movable bearing (27); the outer ring and the inner ring of the locating bearing (26) are respectively fixedly connected to the fixed cover (211) and the fixed shaft (231); the outer ring and the inner ring of the movable bearing (27) are respectively fixedly connected to the sliding sleeve (212) and the sliding shaft (232).

7. The intelligent lawn cleaning device according to claim 1, characterized in that: The cutting component (2) is arranged at one end of the traveling component (1), and the cutting range of the cutting component (2) is adjacent to or flush with the vertical planes on both sides of the traveling component (1).

8. The intelligent lawn cleaning device according to claim 7, characterized in that: The cutter disc (22) and the sliding unit (23) are both provided in plurality and are connected in a one-to-one correspondence.

9. The intelligent lawn cleaning device according to claim 8, characterized in that: The rotating unit (24) comprises a rotating motor (241), a synchronous belt (242) and a synchronous wheel (243); a plurality of the synchronous wheels (243) are provided and are connected to the sliding units (23) in a one-to-one correspondence; the synchronous wheels (243) are connected to each other through the synchronous belt (242); the rotating motor (241) is fixed to the top of the negative pressure cover (21) and the output end is connected to one of the synchronous wheels (243).

10. The intelligent lawn cleaning device according to any one of claims 1 to 9, characterized in that: The cutting assembly (2) further comprises a guide tube (28), wherein the guide tube (28) comprises an outlet end (281) connected to an input end of the negative pressure pump (4) and an inlet end (282) connected to the negative pressure port (213), wherein the size of the inlet end (282) is larger than the size of the outlet end (281), and the inlet end (282) is arranged to gradually transition toward the outlet end (281).

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