Pit digging planting device

Abstract

According to the pit digging planting device provided by the invention, the pit digging unit, the seedling feeding unit and the soil covering unit are sequentially mounted on the moving unit from front to back, and the moving unit is utilized to realize the movement of the whole device; in the moving direction of the device, the pit digging unit, the seedling feeding unit and the soil covering unit are used for conducting pit digging, planting and soil covering operation on the ground. According to the scheme, the integrated design of digging, planting and backfilling can be effectively achieved, so that the soil digging and planting efficiency and the survival rate are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pit digging and planting, and in particular relates to a pit digging and planting device. Background Art

[0002] my country has indeed achieved remarkable results in desert control, such as the "Three Norths" shelterbelt system construction project, natural forest protection, and returning farmland to forest and grassland projects. my country has successfully transformed from "sand advancing and people retreating" to "green advancing and sand retreating". These efforts have not only improved the ecological environment, but also promoted local economic development and social progress.

[0003] Despite remarkable achievements in sand control, there are still some difficulties and challenges in desert plant planting: 1. The traditional method of manual pit digging and planting is inefficient and labor-intensive; 2. The current pit digging equipment is costly and complex to operate, making it unsuitable for promotion and application; 3. The current pit digging equipment lacks an effective pit-fixing structure, and when operating in the sand, it often causes sand and soil to flow back, affecting the depth and quality of the tree planting pits.

[0004] In order to improve the level of automation and survival rate of desert planting, it is necessary to develop a device that integrates functions such as digging holes, planting trees, watering and covering soil, reduce manual operations and improve overall efficiency. The required device should be able to adapt to different terrain and environmental conditions in the desert and have good stability, passability and versatility.

[0005] To this end, we propose a multifunctional pit-digging and planting device for desert soil. Summary of the invention

[0006] The object of the present invention is to provide a pit digging and planting device which can effectively realize the integrated design of pit digging, planting and backfilling.

[0007] In order to solve the above technical problems, the present invention provides a pit digging and planting device, comprising:

[0008] A pit digging unit, comprising a pit digging driving mechanism and a drill bit connected to a movable end of the pit digging driving mechanism, wherein the pit digging driving mechanism is used to drive the drill bit to dig a pit on the ground;

[0009] A seedling placing unit, comprising a seedling placing module for placing seedlings and a watering module for watering;

[0010] A soil covering unit, used to realize the soil covering function;

[0011] The moving unit is used to realize the movement of the pit digging and planting device, and the pit digging unit, the seedling planting unit and the soil covering unit are arranged on the moving unit in sequence from front to back.

[0012] Optionally, in the above-mentioned pit digging and planting device, the pit digging drive mechanism includes a first motor, a first gear transmission shaft, a first gear, a second gear, a screw, a moving block and a second motor, the output end of the first motor is connected to the first gear through the first gear transmission shaft, the first gear and the second gear are meshed for transmission, the axis of the second gear is connected to the screw arranged in a vertical direction, the moving block is sleeved on the outside of the screw and is threadedly connected to the screw, the moving block moves relatively along the axial direction of the screw during the rotation of the screw, the fixed end of the second motor is connected to the moving block, and the movable end is connected to the drill bit.

[0013] Optionally, in the above-mentioned pit digging and planting device, the second gear, the screw rod and the moving block are multiple in one-to-one correspondence, multiple second gears are all meshed with the first gear for transmission, and multiple moving blocks are connected by a connecting plate, and the second motor is installed on the connecting plate.

[0014] Optionally, in the above-mentioned pit digging and planting device, the pit digging unit also includes a first support frame, the fixed end of the first motor is fixed to the outer side of the first support frame, the first gear transmission shaft passes through the first support frame and extends to the inner side of the first support frame, the first gear, the second gear, the screw rod, the moving block and the second motor are all located on the inner side of the first support frame, and the moving unit is provided with an avoidance position for avoiding the drill bit.

[0015] Optionally, in the above-mentioned pit-digging planting device, the seedling placing module includes a seedling storage box and a seedling lowering channel, a seedling outlet is provided at the bottom of the seedling storage box, the seedling outlet is communicated with the seedling lowering channel, and an automatic opening and closing mechanism for controlling the opening and closing of the seedling outlet and the seedling lowering channel is provided at the seedling outlet;

[0016] The watering module includes a water tank, a water pipe and an electric valve. One end of the water pipe is connected to the water tank, and the other end is located at the seedling lowering channel. The electric valve is used to control the on-off of the water pipe.

[0017] Optionally, in the above-mentioned pit-digging planting device, the seedling storage box includes a seedling rack and a seedling baffle disposed at the bottom of the seedling rack, and the automatic opening and closing mechanism includes: a third motor, a third gear, a fourth gear, and a seedling rack transmission shaft connected to the central axis of the seedling rack;

[0018] The seedling outlet is provided on the seedling carrying baffle plate, and a seedling lowering channel penetrating the mobile unit is provided below the seedling outlet;

[0019] The output end of the third motor is connected to the third gear, the third gear is meshed with the fourth gear for transmission, and the fourth gear is connected to the transmission shaft of the seedling rack.

[0020] Optionally, in the above-mentioned pit-digging planting device, the seedling outlet is a trapezoidal opening;

[0021] and / or, the upper surface of the seedling carrying baffle is coated with a smooth coating;

[0022] And / or, the seedling rack is cylindrical as a whole, and a plurality of seedling storage channels are arranged at circumferential intervals in the inner cavity of the seedling rack. When the third motor drives the seedling rack to rotate, the seedlings in the seedling storage channel corresponding to the seedling outlet fall into the seedling lowering channel and are transported to the pit.

[0023] Optionally, in the above-mentioned pit digging and planting device, the third motor has two output ends, one of which is connected to the third gear, and the other is connected to the electric valve.

[0024] Optionally, in the above-mentioned pit digging and planting device, the soil covering unit includes a pair of soil covering wheels, a connecting frame and a pair of corner shafts, the front end of the corner shaft is connected to the connecting frame, and the rear end is connected to the soil covering wheels through a bearing, and the connecting frame is connected to the moving unit.

[0025] Optionally, in the above-mentioned pit digging and planting device, the mobile unit includes a front-end connection port for connecting other pulling tools, moving wheels, a base plate and a rear-end connection port, the front end and the rear end of the base plate are respectively provided with the front-end connection port and the rear-end connection port, and a plurality of the moving wheels are provided on the base plate.

[0026] The present invention provides a pit digging and planting device, which has the following beneficial effects:

[0027] The digging unit, the seedling planting unit and the soil covering unit are sequentially installed on the mobile unit from front to back, and the mobile unit is used to realize the movement of the entire device, and the digging unit, the seedling planting unit and the soil covering unit are used to dig holes, plant and cover the ground in the moving direction of the device. This solution can effectively realize the integrated design of digging holes, planting and backfilling, so as to improve the efficiency of soil digging and planting and the survival rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 A side perspective view of a pit digging and planting device provided by an embodiment of the present invention;

[0030] Figure 2 A front perspective view of a pit digging module provided by an embodiment of the present invention;

[0031] Figure 3 A top view of a seedling placement module provided in an embodiment of the present invention;

[0032] Figure 4 A top view of a seedling loading module provided in an embodiment of the present invention;

[0033] Figure 5 A side view of a soil covering module provided by an embodiment of the present invention;

[0034] Figure 6 A top view of a soil covering module provided in an embodiment of the present invention;

[0035] Figure 7 A top view of a mobile base provided by an embodiment of the present invention;

[0036] Figure 8 A side view of a mobile base provided in accordance with an embodiment of the present invention.

[0037] In the above picture:

[0038] 100-digging unit; 101-control panel; 102-first motor; 103-first wire group; 104-second gear; 105-first gear; 106-second wire group; 107-screw; 108-moving block; 109-first gear transmission shaft; 110-drill bit; 111-second motor;

[0039] 200-seedling lowering unit; 201-water storage tank; 202-water guide pipe; 203-seedling rack transmission shaft; 204-seedling rack; 205-seedling baffle; 206-fourth gear; 207-electric valve; 208-third motor; 209-third gear; 210-seedling lowering channel;

[0040] 300- soil covering unit; 301- soil covering wheel; 302- connecting frame; 303- corner shaft; 304- locking structure;

[0041] 400 - moving unit; 401 - front end connection port; 402 - moving wheel; 403 - base plate; 404 - rear end connection port. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] The core of the present invention is to provide a pit digging and planting device, which can effectively realize the integrated design of pit digging, planting and backfilling, so as to improve the soil pit digging and planting efficiency and survival rate.

[0044] In order to enable those skilled in the art to better understand the technical solution provided by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] Specifically, please refer to Figure 1-Figure 8 The present invention provides a pit digging and planting device, which includes a pit digging unit 100, a seedling planting unit 200, a soil covering unit 300 and a moving unit 400.

[0046] The digging unit 100 is used for digging a hole on the ground, and mainly comprises a digging driving mechanism and a drill bit 110 connected to the movable end of the digging driving mechanism, wherein the digging driving mechanism is used for driving the drill bit 110 to dig a hole on the ground.

[0047] The seedling placing unit 200 is used for placing seedlings and watering the ground. It mainly includes a seedling placing module for placing seedlings and a watering module for watering.

[0048] The soil covering unit 300 is used to fill the pit after the seedlings are placed in front, so as to realize the soil covering function.

[0049] The mobile unit 400 is used to realize the movement of the entire pit digging and planting device, and the pit digging unit 100, the seedling unit 200 and the soil covering unit 300 are sequentially arranged on the mobile unit 400 from front to back. Thus, the pit digging, planting and soil covering operations are sequentially realized in the moving direction of the entire device.

[0050] The pit digging and planting device provided by the present invention is to install the pit digging unit 100, the seedling placing unit 200 and the soil covering unit 300 in sequence from front to back on the mobile unit 400, use the mobile unit 400 to realize the movement of the entire device, and use the pit digging unit 100, the seedling placing unit 200 and the soil covering unit 300 to perform pit digging, planting and soil covering operations on the ground in the moving direction of the device. This solution can effectively realize the integrated design of pit digging, planting and backfilling, so as to improve the soil pit digging and planting efficiency and survival rate.

[0051] In a specific embodiment, the digging drive mechanism includes a first motor 102, a first gear transmission shaft 109, a first gear 105, a second gear 104, a screw 107, a moving block 108 and a second motor 111. The output end of the first motor 102 is connected to the first gear 105 through the first gear transmission shaft 109. The first gear 105 and the second gear 104 are meshed and transmitted. The axis of the second gear 104 is connected to a screw 107 arranged in a vertical direction. The moving block 108 is sleeved on the outside of the screw 107 and is threadedly connected to the screw 107. The moving block 108 moves relatively along the axial direction of the screw 107 during the rotation of the screw 107. The fixed end of the second motor 111 is connected to the moving block 108, and the movable end is connected to the drill bit 110. It should be noted that the moving block 108 will not rotate under the action of the outside, so the lifting and lowering movement can be realized during the rotation of the screw 107. The moving block 108 is equivalent to the screw nut, and the screw 107 is equivalent to the ball screw.

[0052] The first motor 102 drives the first gear 105 to rotate through the first gear transmission shaft 109, and the first gear 105 drives the second gear 104 and the screw 107 to rotate, and the moving block 108 moves up and down along the axis of the screw 107. The second motor 111 and the drill bit 110 perform lifting and lowering motions driven by the moving block 108. At the same time, the second motor 111 drives the drill bit 110 to rotate, thereby realizing automatic pit digging. That is, through the above-mentioned pit digging unit 100, automatic pit digging can be realized by using the motor and gear transmission system.

[0053] In order to improve the stability of gear transmission, the second gear 104, the screw 107 and the moving block 108 are multiple and one-to-one corresponding, and the multiple second gears 104 are all meshed with the first gear 105 for transmission. The multiple moving blocks 108 are connected by a connecting plate, and the second motor 111 is installed on the connecting plate.

[0054] On the basis of the above specific embodiment, the digging unit 100 also includes a first support frame, the fixed end of the first motor 102 is fixed to the outside of the first support frame, the first gear transmission shaft 109 passes through the first support frame and extends to the inside of the first support frame, the first gear 105, the second gear 104, the screw 107, the moving block 108 and the second motor 111 are all located on the inside of the first support frame, and the moving unit 400 is provided with an avoidance position for avoiding the drill bit 110.

[0055] like Figure 2As shown, the number of the second gear 104, the screw rod 107 and the moving block 108 are all two. The two second gears 104 are arranged on the left and right sides of the first gear 105, and the second gear 104 is fixed to the top end face of the screw rod 107. Two metal screw rods 107 are arranged on the left and right sides of the first support frame. The moving block 108 is sleeved on the screw rod 107. Since the two moving blocks 108 are connected by a connecting plate and are at the same height, when the screw rod 107 rotates, the two moving blocks 108 can be driven to move up and down synchronously. A second motor 111 is arranged between the two moving blocks 108.

[0056] In addition, the digging unit 100 further includes a control panel 101 for controlling the start and stop of the first motor 102 and the second motor 111 respectively. For example, the first motor 102 is connected to the control panel 101 by the first wire group 103 to provide power to the first gear 105. The lower end of the second motor 111 is connected to the metal drill bit 110 and provides power to it. The second motor 111 is connected to the control panel 101 outside the first support frame through the second wire group 106. The control panel 101 is connected to the power supply and controls the first motor 102 and the second motor 111 to operate normally.

[0057] In a specific embodiment, the seedling placing module includes a seedling storage box and a seedling lowering channel 210. A seedling outlet is provided at the bottom of the seedling storage box, and the seedling outlet is connected to the seedling lowering channel 210. An automatic opening and closing mechanism for controlling the opening and closing of the seedling outlet and the seedling lowering channel 210 is provided at the seedling outlet. Preferably, the size of the seedling outlet should be such that the planted plants can fall into the planting pit by gravity alone without accumulation and blockage.

[0058] The watering module includes a water storage tank 201, a water pipe 202 and an electric valve 207. One end of the water pipe 202 is connected to the water storage tank 201, and the other end is located at the lower seedling channel 210. The electric valve 207 is used to control the on and off of the water pipe 202. The water pipe 202 can be made of colloid material, and the water storage tank 201 is equipped with a water pipe connection port and a water injection port.

[0059] During the operation, the seedling storage box storing the seedlings is first used to control the opening and closing of the automatic opening and closing mechanism to drop the seedlings from the seedling outlet of the seedling storage box into the hole dug by the pit digging unit 100. After dropping the seedlings, the electric valve 207 is used to control the water storage tank 201 to supply water to the water guide pipe 202, so that the water guide pipe 202 can irrigate the hole dug by the pit digging unit 100.

[0060] In a further specific embodiment, the seedling storage box includes a seedling rack 204 and a seedling baffle 205 arranged at the bottom of the seedling rack 204. The seedling rack 204 and the seedling baffle 205 enclose a seedling storage space, and the two do not contact each other to prevent affecting the rotation of the seedling rack 204.

[0061] The automatic opening and closing mechanism includes: a third motor 208 , a third gear 209 , a fourth gear 206 , and a seedling rack transmission shaft 203 connected to the central axis of the seedling rack 204 .

[0062] A seedling outlet is provided on the seedling carrying baffle plate 205 , and a seedling lowering passage 210 penetrating through the mobile unit 400 is provided below the seedling outlet.

[0063] The output end of the third motor 208 is connected to the third gear 209, the third gear 209 is meshed with the fourth gear 206 for transmission, and the fourth gear 206 is connected to the seedling rack transmission shaft 203, so that the third motor 208 drives the seedling rack 204 to rotate.

[0064] The seedlings are transported out of the seedling outlet at a certain centrifugal speed during the rotation of the seedling carrier 204. Therefore, the seedling outlet can be designed as a trapezoidal opening so that the opening area close to the outer edge is gradually expanded.

[0065] The upper surface of the seedling baffle 205 is coated with a smooth coating to prevent the friction on the surface of the seedling baffle 205 from being too large, so that the seedlings are easily adhered to the seedling baffle 205, so that the seedlings can move to the lower seedling port as the seedling carrier 204 rotates to prevent blockage.

[0066] The seedling rack 204 is cylindrical as a whole, and a plurality of seedling storage channels are arranged at circumferential intervals in the inner cavity of the seedling rack 204. When the third motor 208 drives the seedling rack 204 to rotate, the seedlings in the corresponding seedling storage channel above the seedling outlet fall into the seedling lower channel 210 and are transported to the pit.

[0067] In a specific embodiment, the third motor 208 has two output ends, one of which is connected to the third gear 209 , and the other is connected to the electric valve 207 .

[0068] In addition, the seedling releasing module also includes a second support frame, and the water tank 201 can also be arranged on the upper front half of the second support frame. The lower surface of the water tank 201 is connected to a water pipe 202 whose water outlet is controlled by an electric valve 207. The water outlet of the water pipe 202 is fixed at the lower seedling channel opening 210. The third motor 208 is fixed at the bottom of the second support frame and connected to an external power supply. The electric valve 207 and the third gear 209 are respectively connected to the third motor 208 in transmission. The electric valve 207 is tightly attached to the inner surface of the second support frame near the water pipe 202. The seedling rack transmission shaft 203 is vertically arranged at the center of the inner lower surface of the second support frame. The fourth gear 206 is installed in the lower half and meshes with the third gear 209. The upper half of the seedling rack transmission shaft 203 is connected to the seedling rack 204. The bottom of the seedling rack 204 is blocked by the seedling baffle 205 to form a storage space.

[0069] In a specific embodiment, the covering unit 300 includes a pair of covering wheels 301, a connecting frame 302 and a pair of rotation shafts 303. The front end of the rotation shaft 303 is connected to the connecting frame 302, and the rear end is connected to the covering wheels 301 through bearings. The connecting frame 302 is connected to the mobile unit 400.

[0070] The corner axis 303 includes two interconnected axes, the ends of which mesh with each other through tooth marks to achieve simultaneous change of the angles of the two corner axes 303. The covering unit 300 also includes a locking structure 304, which is connected to the rear end of the moving unit 400 by bolts.

[0071] The corner axis is a kind of axis used to connect two rotating parts in a machine, allowing a certain angle between them. This design enables the mechanical system to work at a specific angle, thereby adapting to complex operating requirements. According to the specific conditions of the planting sand, after adjusting the angle, the angle of the corner axis 303 is fixed by the locking structure 304, and the front end of the connecting frame 302 is connected to the rear end of the mobile unit 400.

[0072] The soil covering wheel 301 can be made of rubber material, and the rubber soil covering wheel can adapt to various terrains and realize the soil covering function. In order to improve the structural strength, the first support frame, the second support frame and the connecting frame 302 can all be made of metal material.

[0073] In a specific embodiment, the mobile unit 400 includes a front connection port 401 for connecting other pulling tools, moving wheels 402, a substrate 403 and a rear connection port 404. The front end and the rear end of the substrate 403 are respectively provided with a front connection port 401 and a rear connection port 404, and a plurality of moving wheels 402 are provided on the substrate 403.

[0074] According to the planting sand, suitable moving wheels 402 are selected and adjusted, the front connection port 401 of the base plate 403 is connected to a vehicle or other pulling tool, and the adjusted digging unit 100 and seedling unit 200 are fixed on the base plate 403. The base plate 403 is provided with drill avoidance openings (such as Figure 7 The circle in the middle) and the seedling channel avoidance opening (such as Figure 7 The rectangular opening in the base plate 403 ensures that there is no interference during the digging and seedling planting process. The rear end connection port 404 of the base plate 403 is connected to the connection frame 302 in the soil covering unit 300.

[0075] The area of ​​the drill avoidance opening is larger than the bottom cross section of the drill bit 110 .

[0076] The working process of the pit planting device is as follows:

[0077] After debugging the device, fill the water tank 201 and place the seedlings on the seedling rack 204, start the vehicle, and power the digging unit 100 and the seedling placing unit 200, carry the digging unit 100 to the top of the target planting point, operate the control panel 101 to turn on the first motor 102 and the second motor 111, and the drill 110 starts to rotate and dig downward. When the excavation reaches the appropriate depth, turn off the second motor 111 and reverse the first motor 102, the drill 110 stops rotating and rises, and when the drill 110 is completely returned to its position, stop the first motor 102 to complete the digging.

[0078] After the pit is dug, the vehicle is driven forward, the seedling lowering port is aligned with the pit, the third motor 208 is started to drive the seedling carrier 204 to rotate slowly, and the electric valve 207 is opened to sprinkle water into the pit; when the seedling carrier 204 is turned to a suitable position, a plant slides into the seedling lowering channel 210 and then falls into the seedling loading pit, the third motor 208 is stopped, and the vehicle is started to continue to move forward, so that the soil covering unit 300 at the rear end passes through the seedling loading pit to complete the soil covering. While the seedling lowering unit 200 is working, the pit digging unit 100 can be operated at the same time to improve the planting efficiency.

[0079] Compared with the existing technology, this solution has the following advantages:

[0080] 1. The device has a high degree of automation in digging pits. By changing the rotation direction of the motor through the control panel 101, the drill bit 110 can be moved up and down, which can effectively save manpower.

[0081] 2. The seedling lowering unit 200 of the device is provided with a water spray port and a water storage tank 201, which can allow water to flow into the pit and contact the sand to prevent the sand from collapsing easily.

[0082] 3. The material of the covering wheel 301 used in this device is rubber, which can adapt to various terrains and soil types. The design of the covering unit can realize the change of the covering wheel angle. Compared with the general covering wheel angle adjustment principle, it is simpler and reduces the adjustment time. It can better adapt to the covering work of planting pits of various widths and depths.

[0083] 4. This device has a high degree of modularity, a simple structure, and versatile materials. It is highly versatile, easy to maintain, and simple to operate. The modules can be adjusted and improved according to different planting conditions.

[0084] In summary, the pit-digging and planting device in this case provides an integrated pit-digging, planting and backfilling device with a simple structure, strong practicality and suitable for different desert environments. It has the advantages of high degree of automation, simple operation and strong adaptability, which can significantly improve the efficiency and survival rate of desert tree planting and help promote the development of desert control.

[0085] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0086] In the description of this application, the meaning of "plurality" is more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0087] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0088] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0089] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A pit digging and planting device, characterized in that: include: A hole digging unit (100) comprises a hole digging drive mechanism and a drill bit (110) connected to a movable end of the hole digging drive mechanism, wherein the hole digging drive mechanism is used to drive the drill bit (110) to dig a hole on the ground; A seedling placing unit (200) comprises a seedling placing module for placing seedlings and a watering module for watering; A soil covering unit (300), used to realize a soil covering function; The moving unit (400) is used to realize the movement of the pit digging and planting device, wherein the pit digging unit (100), the seedling planting unit (200) and the soil covering unit (300) are arranged on the moving unit (400) in sequence from front to back.

2. The pit-digging and planting device according to claim 1, characterized in that: The hole digging drive mechanism comprises a first motor (102), a first gear transmission shaft (109), a first gear (105), a second gear (104), a screw (107), a moving block (108) and a second motor (111); the output end of the first motor (102) is connected to the first gear (105) via the first gear transmission shaft (109); the first gear (105) and the second gear (104) are meshed and transmitted; the axis of the second gear (104) is connected to the screw (107) arranged in a vertical direction; the moving block (108) is sleeved on the outside of the screw (107) and is threadedly connected to the screw (107); the moving block (108) moves relatively along the axial direction of the screw (107) during the rotation of the screw (107); the fixed end of the second motor (111) is connected to the moving block (108) and the movable end is connected to the drill bit (110).

3. The pit-digging and planting device according to claim 2, characterized in that: The second gear (104), the screw rod (107) and the moving block (108) are multiple and correspond to each other. The multiple second gears (104) are all meshed with the first gear (105) for transmission. The multiple moving blocks (108) are connected by a connecting plate, and the second motor (111) is installed on the connecting plate.

4. The pit-digging and planting device according to claim 3, characterized in that: The digging unit (100) further comprises a first support frame, a fixed end of the first motor (102) is fixed to the outside of the first support frame, the first gear transmission shaft (109) passes through the first support frame and extends to the inside of the first support frame, the first gear (105), the second gear (104), the screw (107), the moving block (108) and the second motor (111) are all located on the inside of the first support frame, and the moving unit (400) is provided with an avoidance position for avoiding the drill bit (110).

5. The pit-digging and planting device according to claim 1, characterized in that: The seedling placing module comprises a seedling storage box and a seedling lowering channel (210); a seedling outlet is provided at the bottom of the seedling storage box, the seedling outlet is communicated with the seedling lowering channel (210), and an automatic opening and closing mechanism for controlling the opening and closing of the seedling outlet and the seedling lowering channel (210); The watering module comprises a water storage tank (201), a water pipe (202) and an electric valve (207); one end of the water pipe (202) is in communication with the water storage tank (201) and the other end is located at the seedling lowering channel (210); and the electric valve (207) is used to control the on-off of the water pipe (202).

6. The pit-digging and planting device according to claim 5, characterized in that: The seedling storage box comprises a seedling rack (204) and a seedling baffle (205) arranged at the bottom of the seedling rack (204); the automatic opening and closing mechanism comprises: a third motor (208), a third gear (209), a fourth gear (206), and a seedling rack transmission shaft (203) connected to the central axis of the seedling rack (204); The seedling exit is formed on the seedling carrying baffle (205), and a seedling lowering passage (210) penetrating the mobile unit (400) is provided below the seedling exit; The output end of the third motor (208) is connected to the third gear (209), the third gear (209) is meshed with the fourth gear (206) for transmission, and the fourth gear (206) is connected to the seedling rack transmission shaft (203).

7. The pit-digging and planting device according to claim 6, characterized in that: The seedling outlet is a trapezoidal opening; and / or, the upper surface of the seedling carrying baffle (205) is coated with a smooth coating; And / or, the seedling carrier (204) is cylindrical in shape as a whole, and a plurality of seedling storage channels are arranged at circumferential intervals in the inner cavity of the seedling carrier (204); when the third motor (208) drives the seedling carrier (204) to rotate, the seedlings in the seedling storage channel corresponding to the top of the seedling outlet fall into the seedling lowering channel (210) and are transported to the pit.

8. The pit-digging and planting device according to claim 6, characterized in that: The third motor (208) has two output ends, one of which is connected to the third gear (209), and the other is connected to the electric valve (207).

9. The pit-digging and planting device according to claim 1, characterized in that: The soil covering unit (300) comprises a pair of soil covering wheels (301), a connecting frame (302) and a pair of rotation shafts (303); the front ends of the rotation shafts (303) are connected to the connecting frame (302) and the rear ends are connected to the soil covering wheels (301) via bearings; and the connecting frame (302) is connected to the mobile unit (400).

10. The pit-digging and planting device according to claim 1, characterized in that: The mobile unit (400) comprises a front connection port (401) for connecting to other pulling tools, moving wheels (402), a base plate (403) and a rear connection port (404); the front end and the rear end of the base plate (403) are respectively provided with the front connection port (401) and the rear connection port (404); and a plurality of moving wheels (402) are provided on the base plate (403).

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