Garden ditch digging device

Abstract

The present application discloses a garden ditch excavation device, which relates to the field of ditch construction, and includes a machine body, four legs are arranged on the machine body, the lower ends of the legs are all equipped with walking wheels, a mounting plate is arranged on the machine body for lifting, a rotating roller is arranged on the lower side of the mounting plate for rotation, a plurality of buckets are distributed on the peripheral side of the rotating roller, a conveyor belt is also arranged on the lower side of the mounting plate, the conveyor belt is arranged obliquely, and the conveyor belt is arranged obliquely upward in a direction away from the rotating roller, when the rotating roller rotates, the bucket excavates the soil, and when the bucket rotates, the soil will fall onto the conveyor belt; baffles are arranged at intervals on the conveyor belt, a collection box is arranged on the lower side of the higher end of the conveyor belt of the machine body; a water spray port is provided on the bucket, a scraper plate is arranged on the collection box for lifting, and the scraper plate abuts against the lower bottom surface of the conveyor belt. The present application is helpful to improve the construction efficiency of the ditch and reduce the labor intensity.

Description

Technical Field

[0001] The present application relates to the field of ditch construction, and in particular to a garden ditch digging device. Background Art

[0002] Ditch is a general term for waterways dug for irrigation or drainage.

[0003] Most of the ditch construction in the garden is still done manually, that is, manual digging with handheld digging tools, which is time-consuming and labor-intensive, and has low construction efficiency. Therefore, it is urgent to invent an excavation device to replace manual labor, improve the construction efficiency of the ditch, and reduce the labor intensity of manual labor. Summary of the invention

[0004] In order to improve the construction efficiency of ditches and reduce the intensity of manual labor, the present application provides a garden ditch digging device.

[0005] The garden ditch digging device provided in this application adopts the following technical solution:

[0006] A garden ditch digging device comprises a body, four legs are arranged on the body, and walking wheels are installed at the lower ends of the legs. A mounting plate is arranged on the body for lifting and lowering. A rotating roller is rotatably arranged on the lower side of the mounting plate, and a plurality of buckets are distributed on the circumference of the rotating roller. A conveyor belt is also arranged on the lower side of the mounting plate. The conveyor belt is arranged obliquely and is arranged upwardly in a direction away from the rotating roller. When the rotating roller rotates, the bucket digs the soil, and when the bucket rotates, the soil falls onto the conveyor belt; baffles are arranged at intervals on the conveyor belt, and a collecting box is installed on the mounting plate at the lower side of the highest end of the conveyor belt; a water spraying port is opened on the bucket, and a scraper plate is arranged on the collecting box for lifting and lowering, and the scraper plate abuts against the lower bottom surface of the conveyor belt.

[0007] By adopting the above technical solution, before the ditch construction, a pit will be dug first, and then the machine body will be moved to the pit position by the walking wheels, and then the mounting plate will be lowered, so that the rotating roller enters the pit, drives the rotating roller to rotate, and the machine body walks at the same time, so as to realize the excavation of the soil and realize the formation of the ditch. During the digging process of the bucket, when the bucket moves to the upper side of the rotating roller, the soil in the bucket will fall, and the soil will fall onto the conveyor belt. Under the transportation of the conveyor belt, the soil will fall from the higher end of the conveyor belt to the collection box to be collected, and the baffle on the conveyor belt can be used to prevent the soil from sliding from the conveyor belt into the ditch; in this way Digging ditches can reduce the intensity of manual labor and help improve the efficiency of ditch construction; using a water nozzle to spray water, that is, spraying water during the rotation of the bucket, so that the soil is moistened and easy to dig. The soil will fall onto the conveyor belt during the rotation of the bucket, and the soil will fall from the higher end of the conveyor belt into the collection box. However, since the moist soil will have a certain viscosity, there will be clay attached to the conveyor belt, which is difficult to fall off. At this time, the scraper board is used to contact the lower bottom surface of the conveyor belt to scrape off the soil attached to the conveyor belt. Because a number of baffles are provided on the surface of the conveyor belt, when the baffle moves and contacts the scraper board, the scraper board descends to avoid the baffle board.

[0008] Preferably, two guide rods are vertically arranged on the machine body, the mounting plate is plugged and slidably matched with the two guide rods, and a driving cylinder for driving the mounting plate to rise and fall is arranged on the machine body.

[0009] By adopting the above technical solution, the driving cylinder is used to drive the mounting plate to rise and fall, and the guide rod guides the rising and falling of the mounting plate, thereby realizing the rising and falling of the rotating roller, so that the bucket can be extended into the trench to be excavated.

[0010] Preferably, a supporting shaft is fixedly connected to the lower side of the mounting plate, the supporting shaft is horizontally arranged, the rotating roller is sleeved on the supporting shaft and forms a rotational fit with the supporting shaft, a rotating portion is formed on the rotating roller, a driving motor is mounted on the mounting plate, a first pulley is coaxially fixed on the output shaft of the driving motor, a second pulley is coaxially fixed on the rotating portion of the rotating roller, and a first belt is wound around the first pulley and the second pulley.

[0011] By adopting the above technical solution, the driving motor is operated to drive the first pulley to rotate, and the first pulley drives the second pulley to rotate through the first belt, thereby realizing the rotation of the rotating roller, that is, realizing the digging action of the bucket.

[0012] Preferably, two connecting plates are arranged at intervals on the lower side of the mounting plate, and both ends of the supporting shaft are fixed to the two connecting plates. The supporting shaft is provided with a water hole along the length direction, and the supporting shaft is provided with a first connecting hole along the radial direction, and the first connecting hole is connected with the water hole. The rotating roller is provided with a second connecting hole along the radial direction, and a water spray hole is provided in the bucket. The number of the second connecting holes is the same as the number of the buckets and corresponds one to one. The second connecting holes are connected with the corresponding water spray holes, and the water spray port is formed at one end of the water spray hole; during the rotation of the rotating roller, all the second connecting holes are connected with the first connecting holes in sequence.

[0013] By adopting the above technical scheme, the water holes are connected with the water source. When the ditch excavation operation is carried out, the bucket rotates continuously. During the rotation of the bucket, that is, the rotation of the rotating roller, all the second connection holes are connected with the first connection holes in sequence. When one of the second connection holes is connected with the first connection hole, water will pass through the water hole, the first connection hole, the second connection hole and the water spray hole in sequence, and finally be sprayed out from the water spray port. The water is sprayed onto the soil to moisten the soil for easy excavation. All the second connection holes are connected with the first connection hole in sequence, that is, all the buckets spray water in sequence. The bucket will spray water only when it is rotated to the appropriate position, and the water flows toward the soil, so as to prevent the water spray port on the bucket from spraying water all the time and causing water waste.

[0014] Preferably, a lifting groove is provided on the side wall of the collection box, and the scraper plate and the lifting groove form a sliding fit in the vertical direction. A return spring is installed at the bottom wall of the collection box located at the lifting groove, and the return spring is vertically arranged. One end of the return spring is connected to the bottom wall of the lifting groove, and the other end of the return spring is connected to the scraper plate; a first wedge-shaped surface is formed on the baffle plate, and a second wedge-shaped surface is formed on the upper end of the scraper plate.

[0015] By adopting the above technical solution, when the conveyor belt is running, the conveyor belt transports the soil dumped out by the bucket upward until it falls into the collection box. Since the soil has a certain viscosity, it will adhere to the soil. The scraper plate can be used to scrape off the adhered soil. However, since a baffle is provided on the surface of the conveyor belt, the baffle plate will contact the scraper plate. When the first wedge surface of the baffle plate and the second wedge surface of the scraper plate abut against each other, the scraper plate will drop and compress the reset spring. When the baffle plate and the scraper plate are separated, the scraper plate rises and abuts against the conveyor belt under the action of the reset spring, and continues to scrape off the adhered soil. When the reset spring drives the scraper plate to rise, the scraper plate will generate an instantaneous impact force on the conveyor belt, causing the conveyor belt to vibrate, which helps to remove the soil on the conveyor belt.

[0016] Preferably, a support plate is provided at the bottom of the collecting box for lifting and sliding, and a stirring shaft is rotatably arranged on the support plate, and a stirring blade is arranged on the stirring shaft; an installation groove is formed between the support plate and the bottom wall of the collecting box, the installation groove and the lifting groove are connected, the stirring shaft extends into the installation groove, and a linkage rack is provided on the lower side of the scraper plate in the vertical direction, the collecting box is located in the lifting groove and is rotatably connected to the first rotating shaft in the horizontal direction, a linkage gear is coaxially fixed on the first rotating shaft, the linkage gear and the linkage rack are meshed, a first bevel gear is also coaxially fixed on the first rotating shaft, the collecting box is located in the installation groove and is rotatably connected to the second rotating shaft in the vertical direction, a second bevel gear is coaxially fixed on the second rotating shaft, the second bevel gear and the first bevel gear are meshed, a third pulley is also coaxially fixed on the second rotating shaft, the collecting box is located in the installation groove and is rotatably connected to a rotating sleeve in the vertical direction, a fourth pulley is coaxially fixed on the rotating sleeve, a second belt is wound around the third pulley and the fourth pulley, and the stirring shaft and the rotating sleeve are coaxially rotatable.

[0017] By adopting the above technical scheme, when the scraper board cleans the soil on the conveyor belt, the scraper board performs reciprocating lifting and lowering motion under the action of a number of baffles. When the scraper board is lifted and lowered, the linkage gear is driven to rotate by the linkage rack, and the linkage gear drives the first bevel gear to rotate through the first rotating shaft, and the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the third pulley to rotate through the second rotating shaft, and the third pulley drives the fourth pulley to rotate through the second belt, that is, the rotation of the rotating sleeve is realized, and then the rotation of the stirring shaft and the stirring blade is realized, and the stirring blade performs a reciprocating rotation motion. When the stirring blade rotates, it can break up and disperse the soil to prevent the soil from clumping, and the soil can be evenly dispersed in the collection box, thereby improving the space utilization rate of the collection box.

[0018] Preferably, the collecting box is provided with a compression spring in the mounting groove, the compression spring is vertically arranged, one end of the compression spring is connected to the bottom wall of the mounting groove, the other end of the compression spring is connected to the support plate, a vertical first rack portion is formed on the circumferential side of the stirring shaft, the inner wall of the rotating sleeve is rotatably connected with a driving gear, the driving gear and the first rack portion are meshed, a plug-in block is also provided on the inner wall of the rotating sleeve for sliding in a horizontal direction, the plug-in block is located at the lower side of the driving gear, a second rack portion is formed on the plug-in block, the driving gear and the second rack portion are meshed, the first rack portion and the second rack portion are staggered; a plug-in groove is opened in the vertical direction of the stirring shaft, the first rack portion is located at the notch edge of the plug-in groove, and the plug-in block is plug-matched with the plug-in groove.

[0019] By adopting the above technical scheme, the plug-in cooperation of the plug-in block and the plug-in groove realizes the coaxial rotation cooperation of the stirring shaft and the rotating sleeve; when the soil end falls into the collection box, the weight of the soil will gradually increase. When the soil is just poured, the stirring blades can break up and disperse the soil, but when the soil weight is large, the soil will block the rotation of the stirring blades, that is, hinder the rotation of the stirring shaft, and finally affect the lifting and lowering of the scraper plate; in practice, when the soil weight is large, the support plate will drop, the compression spring will be compressed, and when the support plate drops, the stirring shaft drops, the first rack part drives the driving gear to rotate, and the driving gear drives the plug-in block to slide through the second rack part, so that the plug-in block withdraws from the plug-in groove, and the stirring shaft and the rotating sleeve are released from coaxial rotation, that is, when the scraper plate is lifted or lowered, it will not drive the stirring shaft to rotate. On the contrary, it will not hinder the lifting and lowering of the scraper plate, thereby ensuring the normal operation of the scraper plate.

[0020] Preferably, the stirring shaft consists of an inner shaft and an outer shaft, the outer shaft is rotatably connected to the inner shaft, and the upper end and the lower end of the outer shaft both pass through the inner shaft, and the plug-in groove is opened on the outer shaft; the stirring blades are provided with two, one stirring blade is located on the inner shaft, and the other stirring blade is located at the upper end of the outer shaft, and the lower end of the inner shaft is provided with a movable groove in the vertical direction, and the inner shaft is provided with a coaxial rod slidably arranged in the movable groove, and the inner shaft is provided with a pre-stressed spring in the movable groove, and the pre-stressed spring is vertically arranged, one end of the pre-stressed spring is connected to the inner wall of the movable groove, and the other end of the pre-stressed spring is connected to the upper end of the coaxial rod, and the lower end of the coaxial rod is provided with a square, and a connecting rod is provided with a square hole on the bottom of the rotating sleeve in the vertical direction; when the support plate descends, the square of the coaxial rod and the square hole of the connecting rod are plugged into and matched.

[0021] By adopting the above technical scheme, in the initial state, the outer shaft and the rotating sleeve are coaxially rotated and matched, and the inner shaft is not rotated and matched with the rotating sleeve shaft. When the soil just starts to be dumped, the amount of soil is small, and the stirring blade on the outer shaft is used to stir and break up the soil. When the soil gradually increases, the support plate descends, the plug-in block and the plug-in slot gradually separate, the outer shaft and the rotating sleeve are released from coaxial rotation, and the coaxial rod of the inner shaft will descend accordingly and plug and match with the square rod to form coaxial rotation. At this time, the stirring blade on the inner shaft rotates to stir and break up the soil; that is, the stirring blade on the lower side stirs and breaks up the soil first, and when there is more soil, the rotation of the stirring blade will be hindered. At this time, the stirring blade on the outer shaft does not rotate, and the stirring blade on the inner shaft rotates to continue stirring and breaking up the surface soil; when the coaxial rod descends, if the block is not plugged into the square hole, then the coaxial rod will rise in the movable groove, and the preload spring will be compressed. During the rotation of the rotating sleeve, if the block just docks with the square hole, under the action of the preload spring, the coaxial rod descends to form a coaxial rotation match with the connecting rod.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The ditch is automatically excavated by the continuous rotation of the bucket, and the excavated soil will fall on the conveyor belt and be collected, which helps to reduce the labor intensity and improve the construction efficiency of the ditch;

[0024] 2. During the rotation of the bucket, the external water source is sequentially ejected from the water hole, the first connection hole, the second connection hole and the water spray hole, and finally from the water spray port. The water is sprayed onto the soil, moistening the soil and softening the soil, making it easier for the bucket to dig;

[0025] 3. Because the soil is moist and has adhesion, the soil adheres to the conveyor belt. The clay on the surface of the conveyor belt can be scraped off by using a scraper. Baffles are arranged at intervals on the conveyor belt. When the scraper and the baffle are in contact, the scraper will drop to avoid the baffle and then reset under the cooperation of the first wedge surface and the second wedge surface;

[0026] 4. The scraper plate performs reciprocating lifting motion. During the lifting process, the scraper plate drives the linkage gear to rotate through the linkage rack, the linkage gear drives the first bevel gear to rotate through the first rotating shaft, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the third pulley to rotate through the second rotating shaft, the third pulley drives the fourth pulley to rotate through the second belt, that is, the rotation of the rotating sleeve is realized, the rotating sleeve drives the outer shaft to rotate synchronously, and the stirring blade rotates to stir and break up the soil to prevent the soil from agglomerating and piling up in one place, which affects the space utilization rate of the collection box;

[0027] 5. When the soil at the bottom of the support plate gradually increases, the soil will hinder the rotation of the stirring blade on the outer shaft, that is, it will affect the lifting and lowering of the scraper plate. Therefore, when the soil increases, under the action of gravity, the support plate drops, the outer shaft and the rotating sleeve stop rotating coaxially, and the inner shaft will form a rotational match with the rotating sleeve. At this time, the inner shaft will drive the stirring blade on the upper side to rotate, stirring and breaking up the surface soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present application;

[0029] Figure 2 This is a partial structural diagram of the first embodiment of the present application, which mainly reflects the structure of the supporting shaft and the driving motor;

[0030] Figure 3 It is a cross-sectional view of a part of the structure in the first embodiment of the present application;

[0031] Figure 4 This is a partial structural cross-sectional view of the first embodiment of the present application, which mainly reflects the structure of the scraper plate;

[0032] Figure 5 It is a cross-sectional view of the rotating sleeve and the stirring shaft in the first embodiment of the present application;

[0033] Figure 6 This is a schematic diagram of the structure of the stirring shaft in Example 1 of the present application;

[0034] Figure 7 This is a partial structural diagram of Embodiment 2 of the present application;

[0035] Figure 8 This is a partial structural cross-sectional view of Embodiment 2 of the present application;

[0036] Fig. 9 for Figure 8 A partial enlarged view of middle A.

[0037] Figure numerals: 1, body; 11, support foot; 12, walking wheel; 13, bracket; 131, mounting seat; 132, driving cylinder; 14, guide rod; 2, mounting plate; 21, connecting plate; 22, driving motor; 221, first pulley; 3, rotating roller; 31, rotating part; 32, second pulley; 33, first belt; 34, second connecting hole; 4, bucket; 41, water spraying port; 42, water spraying hole; 5, conveyor belt; 51, baffle; 511, first wedge surface; 6, collecting box; 61, lifting groove; 62, return spring; 63, support plate; 631, plug rod; 64, plug sleeve; 7, scraper plate; 71, second wedge surface; 72, linkage rack; 8, supporting shaft; 81, water hole ;82, first connecting hole;9, mounting groove;91, compression spring;10, stirring shaft;101, inner shaft;1011, movable groove;1012, coaxial rod;10121, block;1013, preload spring;102, outer shaft;1021, plug-in groove;1022, first rack portion;20, stirring blade;30, first rotating shaft;301, linkage gear;302, first bevel gear;40, second rotating shaft;401, second bevel gear;402, third pulley;50, rotating sleeve;501, fourth pulley;502, second belt;503, sliding groove;504, plug-in block;5041, second rack portion;505, connecting rod;5051, square hole;60, driving gear. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-Figure 9 This application is described in further detail.

[0039] The embodiment of the present application discloses a garden ditch digging device.

[0040] Example 1

[0041] Reference Figure 1The garden ditch digging device includes a body 1, on which four legs 11 are arranged, and the lower sides of the four legs 11 are all equipped with walking wheels 12. A mounting plate 2 is also provided on the body 1 for lifting and lowering, and a rotating roller 3 is rotatably provided on the lower side of the mounting plate 2, and a plurality of buckets 4 are distributed around the rotating roller 3. A conveyor belt 5 is also installed on the lower side of the mounting plate 2, and the conveyor belt 5 is driven by two conveyor rollers, and the conveyor rollers are rotatably connected to the lower side of the mounting plate 2 through ear plates. Because the driving method of the conveyor belt 5 is relatively conventional, it will not be described in detail in this application; the conveyor belt 5 is arranged obliquely, and the conveyor roller 3 is provided with a plurality of buckets 4. The conveyor belt 5 is arranged upwardly and inclined in a direction away from the rotating roller 3. When the rotating roller 3 rotates, the bucket 4 excavates the soil, and when the bucket 4 rotates to the upper side of the lower end of the conveyor belt 5, the soil in the bucket 4 will fall onto the conveyor belt 5; a plurality of baffles 51 are installed at intervals on the conveyor belt 5, and the baffles 51 are used to prevent the soil from sliding. A collecting box 6 is installed on the lower side of the mounting plate 2 located at the highest end of the conveyor belt 5, and a scraper plate 7 is arranged in the collecting box 6 for lifting and lowering, and the scraper plate 7 is in contact with the lower bottom surface of the conveyor belt 5. A water spray port 41 is opened on the bucket 4, and the water spray port 41 is located on the front side of the bucket 4.

[0042] When digging a ditch, a pit is dug first, and then the device is moved to the pit position by the running wheel 12, the mounting plate 2 is lowered, the bucket 4 is extended into the pit, the rotating roller 3 is driven to rotate, and all the buckets 4 are driven to rotate. At the same time, the running wheel 12 drives the device to move, and the ditch can be excavated and formed; during the rotation of the bucket 4, the soil will fall onto the conveyor belt 5, and the soil will be finally collected by the conveyor belt 5 under the conveyance of the conveyor belt 5. In this way, the staff only needs to slowly move the digging device, and the bucket 4 will automatically perform the digging operation to form the ditch, which reduces the labor intensity and helps to improve the construction efficiency of the ditch.

[0043] During the rotation of the bucket 4, the water outlet 41 of the bucket 4 will spray water outward, and the water makes the soil moist, which makes it easier for the bucket 4 to break and dig the soil. The moist soil is sticky and therefore adheres to the conveyor belt 5. The soil adhered to the conveyor belt 5 can be scraped off by the contact between the scraper plate 7 and the conveyor belt 5.

[0044] The two sides of the machine body 1 are fixedly installed with brackets 13, which are fixedly connected to the corresponding two legs 11. Guide rods 14 are installed on both brackets 13 in the vertical direction. The mounting plate 2 is plugged and slidably matched with the two guide rods 14. The two brackets 13 are fixedly connected with mounting seats 131, and a driving cylinder 132 is fixedly installed on the mounting seat 131. The driving cylinder 132 is vertically arranged upward, and the piston rod end of the driving cylinder 132 is connected to the mounting plate 2. The driving cylinder 132 is operated to drive the mounting plate 2 to rise and fall, so as to realize the lifting and falling of the rotating roller 3, and the guide rod 14 plays a guiding role in the lifting and falling of the mounting plate 2.

[0045] Reference Figure 1 and Figure 2 Two connecting plates 21 are fixedly installed on the lower side of the mounting plate 2, and a supporting shaft 8 is fixedly connected between the connecting plates 21. One end of the supporting shaft 8 is fixedly connected to one of the connecting plates 21, and the supporting shaft 8 is arranged horizontally. The rotating roller 3 is sleeved on the supporting shaft 8 and forms a rotational match with the supporting shaft 8. A rotating portion 31 is formed at one end of the rotating roller 3, and the rotating portion 31 passes through another connecting plate 21 and rotates with it. A driving motor 22 is fixedly installed on the mounting plate 2, and a first pulley 221 is coaxially fixed on the output shaft of the driving motor 22, and a second pulley 32 is coaxially fixed on the rotating portion 31 of the rotating roller 3. The first belt 33 is sleeved on the first pulley 221 and the second pulley 32. The driving motor 22 is operated to drive the first pulley 221 to rotate, and the first pulley 221 drives the second pulley 32 to rotate through the first belt 33, so as to realize the rotation of the rotating roller 3, that is, to realize the rotation of all the buckets 4.

[0046] Reference Figure 2 and Figure 3 The supporting shaft 8 is provided with a water hole 81 in the horizontal direction, and the supporting shaft 8 is provided with a first connecting hole 82 in the radial direction. The first connecting hole 82 is connected with the water hole 81, and the first connecting hole 82 is inclined, and the first connecting hole 82 is inclined downward in the direction away from the center of the supporting shaft 8. The rotating roller 3 is provided with a second connecting hole 34 in the radial direction. The number of the second connecting holes 34 is the same as the number of the bucket 4 and corresponds one to one. The bucket 4 is provided with a water spray hole 42, and the second connecting hole 34 is connected with the corresponding water spray hole 42. The water spray port 41 is formed at one end of the water spray hole 42. During the rotation of the rotating roller 3, all the second connecting holes 34 are connected with the first connecting hole 82 in sequence.

[0047] In practice, the water hole 81 is connected to an external water source through a water pipe. When the excavation operation is performed, the rotating roller 3 rotates continuously. When the second connection hole 34 is connected to the first connection hole 82, water will sequentially pass through the water hole 81, the first connection hole 82, the second connection hole 34 and the water spray hole 42, and finally spray out from the water spray port 41. The water is sprayed onto the soil to moisten the soil, making it easier for the bucket 4 to dig the soil. All the second connection holes 34 are sequentially connected to the first connection hole 82, that is, all the buckets 4 spray water sequentially. The bucket 4 will spray water only when it is rotated to an appropriate position, and the water flows toward the soil, preventing the water spray port 41 on the bucket 4 from spraying water all the time, causing water waste.

[0048] Reference Figure 1 and Figure 4The side wall of the collecting box 6 close to the bucket 4 is thicker, and a lifting groove 61 is opened at the side wall of the collecting box 6. The scraper plate 7 and the lifting groove 61 form a sliding fit in the vertical direction. A return spring 62 is installed in the vertical direction on the bottom wall of the collecting box 6 located in the lifting groove 61. One end of the return spring 62 is connected to the bottom wall of the lifting groove 61, and the other end of the return spring 62 is connected to the scraper plate 7. A first wedge-shaped surface 511 is formed at the end of the baffle 51 away from the conveyor belt 5, and a second wedge-shaped surface 71 is formed on the upper end of the scraper plate 7. When the conveyor belt 5 is running, the scraper blade 7 contacts with the surface of the conveyor belt 5 to scrape off the soil adhering to the surface of the conveyor belt 5. When the baffle 51 contacts with the scraper blade 7, under the action of the first wedge surface 511 and the second wedge surface 71, the scraper blade 7 descends, and the reset spring 62 is compressed. When the baffle 51 and the scraper blade 7 are separated, under the action of the reset spring 62, the scraper blade 7 is reset, that is, the scraper blade 7 performs a reciprocating lifting motion. When the scraper blade 7 rises, the scraper blade 7 will produce an instantaneous impact on the conveyor belt 5, causing the conveyor belt 5 to vibrate, which helps to remove the soil adhering to the conveyor belt 5.

[0049] A support plate 63 is provided at the bottom of the collection box 6 for lifting and sliding. A plurality of plug-in sleeves 64 are fixedly connected to the bottom wall of the collection box 6. A plurality of plug-in rods 631 are fixedly connected to the lower side of the support plate 63. All the plug-in rods 631 correspond to all the plug-in sleeves 64 one by one. The plug-in rods 631 are plugged and matched with the corresponding plug-in sleeves 64. When the support plate 63 descends, the plug-in sleeves 64 limit the descending stroke of the support plate 63. A mounting groove 9 is formed between the support plate 63 and the bottom wall of the collection box 6. A stirring shaft 10 is rotatably connected to the support plate 63. The lower end of the stirring shaft 10 extends into the mounting groove 9. A stirring blade 20 is coaxially fixed to the stirring shaft 10.

[0050] The mounting groove 9 is communicated with the lifting groove 61, and the lower side of the scraper plate 7 is fixedly connected with a linkage rack 72 in the vertical direction. The collecting box 6 is located in the lifting groove 61 and is rotatably connected to the first rotating shaft 30 in the horizontal direction. A linkage gear 301 is coaxially fixed on the first rotating shaft 30, and the linkage gear 301 is meshed with the linkage rack 72. A first bevel gear 302 is also coaxially fixed on the first rotating shaft 30. The collecting box 6 is located in the mounting groove 9 and is rotatably connected to the second rotating shaft 40 in the vertical direction. A second bevel gear 401 is coaxially fixed on the second rotating shaft 40, and the second bevel gear 401 is meshed with the first bevel gear 302. A third pulley 402 is also coaxially fixed on the second rotating shaft 40. The collecting box 6 is located in the mounting groove 9 and is rotatably connected to the rotating sleeve 50 in the vertical direction. A fourth pulley 501 is coaxially fixed on the rotating sleeve 50. A second belt 502 is wound around the third pulley 402 and the fourth pulley 501, and the stirring shaft 10 and the rotating sleeve 50 are coaxially rotated in cooperation.

[0051] When the scraper plate 7 is raised or lowered, the linkage rack 72 drives the linkage gear 301 to rotate, the linkage gear 301 drives the first bevel gear 302 to rotate through the first rotating shaft 30, the first bevel gear 302 drives the second bevel gear 401 to rotate, the second bevel gear 401 drives the third pulley 402 to rotate through the second rotating shaft 40, the third pulley 402 drives the fourth pulley 501 to rotate through the second belt 502, that is, the rotation of the rotating sleeve 50 is realized, and then the rotation of the stirring shaft 10 and the stirring blade 20 is realized, and the stirring blade 20 makes a reciprocating rotation motion to stir and break up the soil to prevent the soil from clumping and piling up, which affects the space utilization rate of the collection box 6.

[0052] The collection box 6 is located in the mounting groove 9 and is installed with a compression spring 91. There are multiple compression springs 91, which are the same as the number of the plug-in sleeve 64 and correspond one to one. The compression spring 91 is sleeved on the circumference of the plug-in sleeve 64. The compression spring 91 is vertically arranged. One end of the compression spring 91 is connected to the bottom wall of the mounting groove 9, and the other end is connected to the bottom side of the support plate 63.

[0053] Reference Figure 4 , Figure 5 and Figure 6 The lower side of the stirring shaft 10 is provided with a plug-in groove 1021 in the vertical direction, and the inner wall of the rotating sleeve 50 is provided with a sliding groove 503. The rotating sleeve 50 is provided with a plug-in block 504 in the sliding groove 503. When the plug-in block 504 slides outward from the sliding groove 503 and plugs into the plug-in groove 1021, the rotating sleeve 50 and the stirring shaft 10 form a coaxial rotation fit. The stirring shaft 10 is provided with a first rack portion 1022 at the opening edge of the plug-in groove 1021. The inner wall of the rotating sleeve 50 is rotatably connected with a driving gear 60. The driving gear 60 is located on the upper side of the plug-in block 504. The driving gear 60 is meshed with the first rack portion 1022. The plug-in block 504 is formed with a second rack portion 5041. The driving gear 60 is meshed with the second rack portion 5041. The first rack portion 1022 and the second rack portion 5041 are misaligned.

[0054] The soil keeps falling on the support plate 63, and the weight of the soil keeps increasing. When there is not much soil, the stirring blade 20 can break up and disperse the soil. However, when there is more and more soil, the soil will cover and bury the stirring blade 20. At this time, the soil will hinder the rotation of the stirring blade 20, and will eventually affect the lifting and lowering of the scraper plate 7. Therefore, in practice, when the weight increases, the support plate 63 will drop, driving the stirring shaft 10 to drop. When the stirring shaft 10 drops, the first rack portion 1022 drives the driving gear 60 to rotate, and the driving gear 60 drives the plug-in block 504 to slide through the second rack portion 5041. The plug-in block 504 withdraws from the plug-in slot 1021. At the same time, the first rack portion 1022 and the driving gear 60 are disengaged, releasing the coaxial rotation cooperation between the stirring shaft 10 and the rotating sleeve 50, that is, the hindering effect of the soil on the stirring blade 20 will not act on the scraper plate 7, thereby ensuring the smoothness of the movement of the scraper plate 7.

[0055] The implementation principle of a garden ditch excavation device in the embodiment of the present application is as follows: the ditch is excavated by continuously rotating the bucket 4. During the rotation of the bucket 4, water is continuously sprayed on the soil to make the soil moist and soft, which is convenient for the bucket 4 to dig. During the rotation of the bucket 4, the soil will fall from the bucket to the conveyor belt 5, and finally fall into the collection box 6 under the conveyance of the conveyor belt 5; the soil adhering to the conveyor belt 5 can be scraped off by the scraper plate 7, and due to the action of the baffle 51, the scraper plate 7 performs reciprocating lifting and lowering motion. When the scraper plate 7 is lifted and lowered, it drives the stirring blade 20 to reciprocate and rotate, breaking up the soil and evenly distributing it in the collection box 6, preventing the soil from agglomerating and piling up, and affecting the space utilization rate of the collection box 6. Compared with manual excavation, the use of the device for ditch excavation greatly reduces the labor intensity of manual labor and helps to improve the efficiency of ditch excavation.

[0056] Example 2

[0057] Reference Figure 7 , Figure 8 and Fig. 9The difference between this embodiment and embodiment 1 is that the stirring shaft 10 consists of an inner shaft 101 and an outer shaft 102, the outer shaft 102 is rotatably connected to the support plate 63, the lower end of the outer shaft 102 extends into the mounting groove 9, the inner shaft 101 is rotatably connected to the outer shaft 102, the upper and lower ends of the inner shaft 101 both pass through the outer shaft 102, a stirring blade 20 is coaxially fixed to the outer shaft 102, a stirring blade 20 is also coaxially fixed to the upper end of the inner shaft 101, the height of the stirring blade 20 on the inner shaft 101 is higher than the stirring blade 20 on the outer shaft 102, a movable groove 1011 is opened at the lower end of the inner shaft 101 in the vertical direction, and a coaxial rod 101 is slidably provided in the movable groove 1011 on the inner shaft 101 2. The coaxial rod 1012 is a square rod. The inner shaft 101 is located in the movable groove 1011 and is equipped with a preload spring 1013. The preload spring 1013 is located on the upper side of the coaxial rod 1012 and is vertically arranged. One end of the preload spring 1013 is connected to the inner wall of the movable groove 1011, and the other end is connected to the upper end of the coaxial rod 1012. The lower end of the coaxial rod 1012 is fixedly connected with a block 10121. The bottom of the rotating sleeve 50 is vertically equipped with a connecting rod 505. The connecting rod 505 is a square rod. A square hole 5051 is opened on the connecting rod 505. The support plate 63 descends, and the block 10121 of the coaxial rod 1012 and the square hole 5051 of the connecting rod 505 are plugged and matched. The plug-in slot 1021 and the first rack portion 1022 are located on the outer shaft 102.

[0058] In the initial state, the outer shaft 102 and the rotating sleeve 50 are coaxially rotated, and the inner shaft 101 is not rotated with the rotating sleeve 50. When the soil is just beginning to be poured, the amount of soil is small, and the stirring blades 20 on the outer shaft 102 stir and break up the soil. When the amount of soil increases, the support plate 63 descends, the plug-in block 504 and the plug-in slot 1021 gradually disengage, and the outer shaft 102 and the rotating sleeve 50 stop rotating coaxially; when the support plate 63 descends, the inner shaft 101 descends accordingly, and the inner shaft 101 drives the coaxial rod 1012 to descend and plug and match with the connecting rod 505, so that the inner shaft 101 and the rotating sleeve 50 form a rotational fit, and at this time, the stirring blades 20 on the inner shaft 101 rotate to break up the soil. That is, first, the stirring blade 20 on the lower side stirs and breaks up the soil. When there is a lot of soil, it will hinder the rotation of the stirring blade 20. At this time, the stirring blade 20 on the outer shaft 102 does not rotate, and the stirring blade 20 on the inner shaft 101 rotates to continue stirring and breaking up the surface soil. When there is more and more soil, it is necessary to stop digging and clean the soil in the collection box 6 in time; when the coaxial rod 1012 descends, if the block 10121 is not plugged into the square hole 5051, then at this time the coaxial rod 1012 will rise in the movable groove 1011, and the preload spring 1013 will be compressed. During the rotation of the rotating sleeve 50, if the block 10121 just docks with the square hole 5051, under the action of the preload spring 1013, the coaxial rod 1012 descends to form a coaxial rotation fit with the connecting rod 505.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A garden ditch digging device, characterized in that: The invention comprises a machine body (1), wherein four supporting legs (11) are arranged on the machine body (1), and the lower ends of the supporting legs (11) are all equipped with walking wheels (12); a mounting plate (2) is arranged on the machine body (1) for lifting; a rotating roller (3) is rotatably arranged on the lower side of the mounting plate (2), and a plurality of buckets (4) are distributed around the rotating roller (3); a conveyor belt (5) is also arranged on the lower side of the mounting plate (2); the conveyor belt (5) is arranged obliquely, and the conveyor belt (5) is arranged obliquely upward in a direction away from the rotating roller (3); when the rotating roller (3) rotates, the bucket (4) excavates soil, and when the bucket (4) rotates, the soil falls onto the conveyor belt (5); baffles (51) are arranged at intervals on the conveyor belt (5); a collecting box (6) is installed on the mounting plate (2) at the lower side of the highest end of the conveyor belt (5); a water spraying port (41) is provided on the bucket (4); and the collecting box (6) is provided on the upper side of the conveyor belt (5); and a water spraying port (41) is provided on the bucket (4); and the collecting box (6) is provided on the lower side of the upper end of the conveyor belt (5). A scraper plate (7) is provided on the collecting box (6) for lifting, and the scraper plate (7) abuts against the lower bottom surface of the conveyor belt (5); a lifting groove (61) is provided on the side wall of the collecting box (6), and the scraper plate (7) and the lifting groove (61) form a sliding fit in the vertical direction; a return spring (62) is installed at the bottom wall of the collecting box (6) located at the lifting groove (61), and the return spring (62) is vertically arranged. One end of the return spring (62) is connected to the bottom wall of the lifting groove (61), and the other end of the return spring (62) is connected to the scraper plate (7); a first wedge-shaped surface (511) is formed on the baffle plate (51), and a second wedge-shaped surface (71) is formed on the upper end of the scraper plate (7); a support plate (63) is provided at the bottom of the collection box (6) for lifting and sliding, a stirring shaft (10) is rotatably provided on the support plate (63), and a stirring blade (20) is provided on the stirring shaft (10);A mounting groove (9) is formed between the support plate (63) and the bottom wall of the collection box (6); the mounting groove (9) is connected to the lifting groove (61); the stirring shaft (10) extends into the mounting groove (9); a linkage rack (72) is provided on the lower side of the scraper plate (7) in the vertical direction; the collection box (6) is located in the lifting groove (61) and is connected to a first rotating shaft (30) for rotation in the horizontal direction; a linkage gear (301) is coaxially fixed on the first rotating shaft (30); the linkage gear (301) and the linkage rack (72) are meshed; a first bevel gear (302) is also coaxially fixed on the first rotating shaft (30); the collection box (6) is located in the mounting groove ( 9) is connected to a second rotating shaft (40) for rotation in the vertical direction, a second bevel gear (401) is coaxially fixed on the second rotating shaft (40), the second bevel gear (401) is meshed with the first bevel gear (302), a third belt pulley (402) is coaxially fixed on the second rotating shaft (40), the collecting box (6) is located in the mounting groove (9) and is connected to a rotating sleeve (50) for rotation in the vertical direction, a fourth belt pulley (501) is coaxially fixed on the rotating sleeve (50), a second belt (502) is wound around the third belt pulley (402) and the fourth belt pulley (501), and the stirring shaft (10) and the rotating sleeve (50) are coaxially rotated in cooperation. ; 2. A garden ditch digging device according to claim 1, characterized in that: Two guide rods (14) are vertically arranged on the machine body (1), the mounting plate (2) is plugged and slidably matched with the two guide rods (14), and a driving cylinder (132) for driving the mounting plate (2) to rise and fall is arranged on the machine body (1).

3. A garden ditch digging device according to claim 1, characterized in that: A supporting shaft (8) is fixedly connected to the lower side of the mounting plate (2), the supporting shaft (8) is arranged horizontally, the rotating roller (3) is sleeved on the supporting shaft (8) and forms a rotational fit with the supporting shaft (8), a rotating portion (31) is formed on the rotating roller (3), a driving motor (22) is mounted on the mounting plate (2), a first pulley (221) is coaxially fixed on the output shaft of the driving motor (22), a second pulley (32) is coaxially fixed on the rotating portion (31) of the rotating roller (3), and a first belt (33) is wound around the first pulley (221) and the second pulley (32).

4. A garden ditch digging device according to claim 3, characterized in that: Two connecting plates (21) are arranged at intervals on the lower side of the mounting plate (2), and the two ends of the supporting shaft (8) are fixed to the two connecting plates (21). The supporting shaft (8) is provided with a water hole (81) along the length direction, and the supporting shaft (8) is provided with a first connecting hole (82) along the radial direction, and the first connecting hole (82) is connected to the water hole (81). The rotating roller (3) is provided with a second connecting hole (34) along the radial direction, and the bucket (4) is provided with a water spray hole (42). The number of the second connecting holes (34) is the same as the number of the bucket (4) and corresponds one to one. The second connecting holes (34) are connected to the corresponding water spray holes (42), and the water spray port (41) is formed at one end of the water spray hole (42); during the rotation of the rotating roller (3), all the second connecting holes (34) are connected to the first connecting holes (82) in sequence.

5. A garden ditch digging device according to claim 1, characterized in that: The collecting box (6) is provided with a compression spring (91) in the mounting groove (9), and the compression spring (91) is arranged vertically. One end of the compression spring (91) is connected to the bottom wall of the mounting groove (9), and the other end of the compression spring (91) is connected to the support plate (63). A vertical first rack portion (1022) is formed on the circumference of the stirring shaft (10). The inner wall of the rotating sleeve (50) is rotatably connected to a driving gear (60), and the driving gear (60) is meshed with the first rack portion (1022). The inner wall of the rotating sleeve (50) is also provided with a gear (1022) in the horizontal direction. A plug-in block (504) is provided for sliding movement, and the plug-in block (504) is located at the lower side of the driving gear (60). A second rack portion (5041) is formed on the plug-in block (504), and the driving gear (60) and the second rack portion (5041) are meshed, and the first rack portion (1022) and the second rack portion (5041) are offset; the stirring shaft (10) is provided with a plug-in groove (1021) in the vertical direction, and the first rack portion (1022) is located at the groove edge of the plug-in groove (1021), and the plug-in block (504) is plugged into and matched with the plug-in groove (1021).

6. A garden ditch digging device according to claim 5, characterized in that: The stirring shaft (10) is composed of an inner shaft (101) and an outer shaft (102), the outer shaft (102) is rotatably connected to the inner shaft (101), and the upper end and the lower end of the outer shaft (102) both pass through the inner shaft (101), and the plug-in groove (1021) is provided on the outer shaft (102); two stirring blades (20) are provided, one stirring blade (20) is located on the inner shaft (101), and the other stirring blade (20) is located at the upper end of the outer shaft (102), the lower end of the inner shaft (101) is provided with a movable groove (1011) in the vertical direction, the inner shaft (101) is slidably provided with a coaxial rod (1012) in the movable groove (1011), and the inner shaft (101) is located at the movable groove (1011). A preload spring (1013) is arranged in the groove (1011), and the preload spring (1013) is arranged vertically. One end of the preload spring (1013) is connected to the inner wall of the movable groove (1011), and the other end of the preload spring (1013) is connected to the upper end of the coaxial rod (1012). A block (10121) is arranged at the lower end of the coaxial rod (1012). A connecting rod (505) is arranged at the bottom of the rotating sleeve (50) along the vertical direction, and a square hole (5051) is opened on the connecting rod (505); when the supporting plate (63) descends, the block (10121) of the coaxial rod (1012) and the square hole (5051) of the connecting rod (505) are plugged and matched.

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