Planting pit digging device
By designing an automated planting hole-digging device, the inconvenience of manually spraying nutrient solution in existing technologies has been solved, achieving the convenience of automatic hole digging and nutrient solution addition.
Patent Information
- Application Number
- CN202520434147.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing pit-digging equipment requires manual spraying of nutrient solution after digging the pit, which is inconvenient to operate and consumes labor.
Design a planting hole-digging device, including a hole-digging structure and a cover, which can automatically dig holes and add nutrient solution directly into the holes after digging. The device uses a motor to drive a rotating drill bit to dig holes and uses the cover to prevent soil from collapsing. At the same time, it automatically opens the liquid outlet pipe to spray nutrient solution after the hole is dug.
It automates the digging of holes and the addition of nutrient solution, reducing manual operation and improving work efficiency and ease of use.
Smart Images

Figure CN223885682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of citrus planting pit-opening devices, and in particular to a planting pit-opening device. Background Technology
[0002] Citrus fruits are a large and common category of fruits, belonging to the Rutaceae family and the Citrus genus. They are rich in nutrients and have a variety of uses. A hole-digging device, also known as a posthole digger or tree planter, is an agricultural machine specifically designed to dig holes in the ground for planting seedlings or other plants. This machine is commonly used in forestry, horticulture, and urban greening projects, efficiently completing the digging work while saving manpower and time.
[0003] Existing planting hole-digging devices are mostly limited in function, only capable of digging holes. While nutrient solution is typically added to the soil during hole-digging to improve plant growth, current methods require manual spraying of the nutrient solution after hole-digging, which is labor-intensive and inconvenient. Therefore, those skilled in the art have provided a planting hole-digging device to address the problems mentioned in the background section. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a planting pit-opening device. This device, through its pit-opening structure, facilitates the opening of pits in the soil and is equipped with a cover to prevent soil from collapsing into the pit. Furthermore, nutrient solution can be added to the pit immediately after it is opened, making it convenient to use.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A planting hole-digging device includes a chassis, a baffle, and a hole-digging structure. A first motor and a second motor are fixedly installed at the front of the upper end of the chassis. A fixing block is hinged to the upper side of the baffle. A torsion spring is installed at the hinge point between the fixing block and the baffle. An inner groove is opened on one side of the inside of the baffle. A spring is fixedly installed on one side of the inner wall of the inner groove. A fixing plate is fixedly installed at one end of the spring. An insert block is fixedly installed at one end of the fixing plate.
[0007] The excavation structure includes a connecting plate and a cover. A sleeve rod is rotatably installed at the front of the connecting plate. A rotary drill bit is fixedly fitted around the lower part of the sleeve rod. A rotating rod is movably fitted inside the sleeve rod. Pressure rods are fixedly installed on both sides of the lower end of the connecting plate. A screw rod is threadedly fitted on the rear side of the connecting plate. A fixing rod is fixedly installed on one side of the lower end of the connecting plate. A push block is fixedly installed on one side of the fixing rod. Second inner grooves are opened on both sides of the upper part of the cover. Second springs are fixedly installed on the bottom surface of the two second inner grooves.
[0008] Furthermore, side plates are fixedly installed on both sides of the lower end of the chassis, and two rollers are rotatably installed on the opposite side of the two side plates near the bottom. The pitting structure is set inside the chassis. The upper end of the screw passes through the chassis and is fixedly connected to the output end of the second motor. The upper end of the rotating rod passes through the chassis and is fixedly connected to the output end of the first motor.
[0009] Furthermore, a push rod is fixedly installed at the upper rear side of the chassis, and a liquid inlet cylinder is fixedly installed at the rear upper end of the chassis. The lower end of the liquid inlet cylinder extends into the storage tank and is covered with a cover.
[0010] Furthermore, a storage tank is fixedly installed at the rear of the bottom surface inside the chassis, and a liquid outlet pipe is fixedly installed at the lower end of the storage tank. The liquid outlet pipe is fixedly fitted with a fixing sleeve block at the lower part of its body.
[0011] Furthermore, the lower end of the liquid outlet pipe penetrates the lower side of the casing, and the liquid outlet of the liquid outlet pipe is located on the upper side of the cover.
[0012] Furthermore, the baffle is located on the lower side of the liquid outlet pipe, and the insert block penetrates one side of the baffle.
[0013] Furthermore, each of the two pressure rods has a second fixing plate fixedly installed at its lower end, and the two second fixing plates respectively penetrate into the two second inner grooves. The upper ends of the two second springs are respectively fixedly connected to the two second fixing plates.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model proposes a planting hole-digging device. The device features a hole-digging structure. By activating a first motor and a second motor, the screw connected to the output end of the second motor rotates. Since the screw and connecting plate are threaded together, the connecting plate moves downwards. The connecting plate and the sleeve are rotated, and the rotating rod and sleeve are movably fitted together. The first motor drives the rotating rod to rotate, causing the sleeve to rotate as it moves downwards. This causes a rotating drill bit located near the bottom of the sleeve to rotate and dig a hole in the soil. A cover is provided around the drill bit. Because the cover has a second inner groove and a second spring, the pressure rod can move downwards, allowing the cover to cover the bottom surface. The rotating drill bit rotates the soil, and the cover prevents the soil from slipping into the hole.
[0016] 2. This utility model proposes a planting hole-opening device. By setting a baffle on the lower side of the nutrient outlet pipe, the baffle and the fixing sleeve are hinged together. As the fixing rod and the push block move down with the connecting plate, the insert block is pushed, so that the insert block enters the first inner groove. The push block moves to the lower side of the insert block. After the hole is opened, the second motor drives the screw to reverse, so that the connecting plate moves up. The connecting plate drives the fixing rod and the push block to move up. Since the lower side of the insert block is set as a plane, and the baffle and the fixing sleeve are hinged together, the insert block and the baffle can be pried upward, so that the baffle blocking the outlet of the nutrient pipe opens, so that the nutrient solution can flow out from the outlet and flow into the hole along the drill bit. Thus, the nutrient solution can be added in time after the hole is opened, which is convenient to use. Attached Figure Description
[0017] Figure 1 This is an isometric schematic diagram of the present invention;
[0018] Figure 2 This is a side sectional isometric schematic diagram of the present invention;
[0019] Figure 3 This is a side sectional axonometric view of the pit-digging structure of this utility model;
[0020] Figure 4 This is an enlarged schematic diagram of point A in this utility model;
[0021] Figure 5 This is an isometric schematic diagram of the storage bucket of this utility model;
[0022] Figure 6 This is a frontal axonometric view of the baffle of this utility model;
[0023] Figure 7 This is a side axonometric view of the baffle of this utility model;
[0024] Figure 8 This is a top-view axonometric schematic diagram of the baffle of this utility model;
[0025] Figure 9 This is a side sectional isometric view of the baffle of this utility model.
[0026] Legend:
[0027] 1. Chassis; 2. Side plate; 3. Roller; 4. Motor 1; 5. Motor 2; 6. Digging structure; 7. Push rod; 8. Inlet cylinder; 9. Storage tank; 10. Outlet pipe; 11. Fixing block; 12. Baffle; 13. Inner groove 1; 14. Spring 1; 15. Fixing plate 1; 16. Insert block; 601. Connecting plate; 602. Sleeve rod; 603. Rotating rod; 604. Screw; 605. Pressure rod; 606. Cover; 607. Rotary drill bit; 608. Fixing rod; 609. Push block; 610. Fixing plate 2; 611. Inner groove 2; 612. Spring 2. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Reference Figure 1 , Figure 2 , Figures 5-9 One embodiment provided by this utility model:
[0030] A planting hole-digging device includes a housing 1, a baffle 12, and a hole-digging structure 6. A first motor 4 and a second motor 5 are fixedly installed at the front of the upper end of the housing 1. A fixing block 11 is hinged to the upper side of the baffle 12. A torsion spring is installed at the hinge point between the fixing block 11 and the baffle 12. A first inner groove 13 is opened on one side of the baffle 12. A first spring 14 is fixedly installed on the inner wall of one side of the first inner groove 13. A first fixing plate 15 is fixedly installed at one end of the first spring 14. An insert block 16 is fixedly installed at one end of the first fixing plate 15.
[0031] Side plates 2 are fixedly installed on both sides of the lower end of the casing 1. Two rollers 3 are rotatably installed on the lower side of opposite sides of the two side plates 2. The pit structure 6 is set inside the casing 1. The upper end of the screw 604 passes through the casing 1 and is fixedly connected to the output end of the second motor 5. The upper end of the rotating rod 603 passes through the casing 1 and is fixedly connected to the output end of the first motor 4. A push rod 7 is fixedly installed on the upper rear side of the casing 1. An inlet cylinder 8 is fixedly installed on the rear upper part of the casing 1. The lower end of the inlet cylinder 8 extends into the interior of the storage tank 9 and is covered with a cover. The storage tank 9 is fixedly installed at the rear of the bottom surface of the machine box 1. The lower end of the storage tank 9 is fixedly installed with the outlet pipe 10. The lower part of the outlet pipe 10 is fixedly fitted with the fixing sleeve block 11. The lower end of the outlet pipe 10 extends through the lower side of the machine box 1. The outlet of the outlet pipe 10 is located on the upper side of the cover 606. The baffle 12 is located on the lower side of the outlet pipe 10. The insert block 16 extends through one side of the baffle 12.
[0032] Specifically, side plates 2 are installed on the lower sides of the chassis 1 to support the chassis 1. Rollers 3 are installed on opposite ends of the two side plates 2 to push the device. A storage tank 9 is installed to store nutrient solution. The nutrient solution is introduced into the pit through an outlet pipe 10. A baffle 12 is installed to block the outlet pipe 10. The upper side of the baffle 12 is made of rubber to provide a good seal. An inner tank 13 is opened inside the baffle 12. The device is equipped with a spring 14 and a plug 16. The upper side of the plug 16 is set as an inclined surface. When the fixing rod 608 and the push block 609 move down, they will push the plug 16 into the inner groove 13, so that the fixing rod 608 and the push block 609 move down to the lower side of the plug 16. A fixing sleeve 11 is fixedly sleeved at the lower part of the body of the liquid outlet pipe 10 for hinged setting of baffle 12 for support. By hinged setting of baffle 12 and fixing sleeve 11, baffle 12 can be reset after being pushed.
[0033] Reference Figures 2-4 , Figure 6 The excavation structure 6 includes a connecting plate 601 and a cover 606. A sleeve rod 602 is rotatably mounted inside the connecting plate 601 at its front end. A rotary drill bit 607 is fixedly mounted around the lower part of the sleeve rod 602. A rotating rod 603 is movably mounted inside the sleeve rod 602. Pressure rods 605 are fixedly mounted on both sides of the lower end of the connecting plate 601. A screw rod 604 is threaded onto the rear side of the inside of the connecting plate 601. A fixing rod 608 is fixedly mounted on one side of the lower end of the connecting plate 601. A push block 609 is fixedly installed on one side of the fixed rod 608 near the bottom. The upper sides of both sides of the cover 606 are provided with second inner grooves 611. The bottom surfaces of the two second inner grooves 611 are fixedly installed with second springs 612. The lower ends of the two pressure rods 605 are fixedly installed with second fixing plates 610, and the two second fixing plates 610 respectively penetrate into the two second inner grooves 611. The upper ends of the two second springs 612 are fixedly connected to the two second fixing plates 610 respectively.
[0034] Specifically, a cover 606 is configured with two inner grooves 611. A second spring 612 and a second fixing plate 610 are connected within each inner groove 611. When the connecting plate 601 moves downward, it pushes two pressure rods 605, causing the cover 606 to move downward until it contacts the ground. The two pressure rods 605 then move downward within the inner grooves 611, compressing the second spring 612. A rotary drill 607 rotates the soil. A motor 4 drives a rotating rod 603 to rotate. The rotating rod 603 has protrusions on both sides and grooves on the inner walls of the sleeve rod 602. When the rotating rod 603 is movably fitted inside the sleeve rod 602, the sleeve rod 602 can rotate with the rotating rod 603, and the sleeve rod 602 can also move up and down around the rotating rod 603. This is achieved through the second motor. 5 drives the screw 604 to rotate. Since the screw 604 and the connecting plate 601 are threaded together, the connecting plate 601 can drive the sleeve rod 602 to move down. As the fixed rod 608 and the push block 609 move down with the connecting plate 601, they push the insert block 16, causing the insert block 16 to enter the first inner groove 13. This causes the push block 609 to move to the lower side of the insert block 16. After the pit is opened, the second motor 5 is controlled to drive the screw 604 to reverse, causing the connecting plate 601 to move up. The connecting plate 601 drives the fixed rod 608 and the push block 609 to move up. Since the lower side of the insert block 16 is set as a plane, and the baffle 12 and the fixed sleeve block 11 are hinged, the insert block 16 and the baffle 12 can be pried upwards, thereby opening the baffle 12 blocking the outlet pipe 10. When the push block 609 leaves the insert block 16, the baffle 12 closes under the action of the torsion spring, blocking the outlet pipe 10.
[0035] Working principle: When the device is in use, starting motor 4 and motor 5 causes the screw 604 connected to the output end of motor 5 to rotate. Since screw 604 and connecting plate 601 are threaded together, connecting plate 601 is controlled to move downward. Meanwhile, sleeve rod 602 and rotating rod 603 are movably sleeved together. Motor 4 drives rotating rod 603 to rotate. Sleeve rod 602 rotates as rotating rod 603 moves downward, causing the rotating drill bit 607 at the lower part of sleeve rod 602 to rotate and open a pit in the soil. Cover 606 moves downward with the two pressure rods 605 until it contacts the bottom surface and covers the area around the opened pit. The two pressure rods 605 move downward in the second inner groove 611. The opening of the pit causes the soil to pile up from the top of cover 606 around cover 606.
[0036] Secondly, after the pit is dug, the second motor 5 drives the screw 604 to reverse, causing the connecting plate 601 to move upward. The connecting plate 601 drives the fixing rod 608 and the push block 609 to move upward. Since the lower side of the insert block 16 is set as a plane, and the baffle 12 and the fixing sleeve block 11 are hinged, the insert block 16 and the baffle 12 can be pried upward, so that the baffle 12 blocking the outlet pipe 10 can be opened, allowing the nutrient solution to flow out of the outlet pipe 10 and into the pit along the rotating drill bit 607. When the push block 609 leaves the insert block 16, the baffle 12 closes under the action of the torsion spring, blocking the outlet pipe 10.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A planting hole-digging device, comprising a housing (1), a baffle (12), and a hole-digging structure (6), characterized in that: A first motor (4) and a second motor (5) are fixedly installed at the front of the upper end of the chassis (1). A fixing block (11) is hinged to the upper side of the baffle (12). A torsion spring is installed at the hinge of the fixing block (11) and the baffle (12). A first inner groove (13) is opened on one side of the baffle (12). A first spring (14) is fixedly installed on the inner wall of one side of the first inner groove (13). A first fixing plate (15) is fixedly installed at one end of the first spring (14). A plug (16) is fixedly installed at one end of the first fixing plate (15). The digging structure (6) includes a connecting plate (601) and a cover (606). A sleeve rod (602) is rotatably installed at the front of the connecting plate (601). A rotary drill bit (607) is fixedly installed around the lower part of the sleeve rod (602). A rotating rod (603) is movably installed inside the sleeve rod (602). Pressure rods (605) are fixedly installed on both sides of the lower end of the connecting plate (601). A screw rod (604) is threadedly installed on the rear side of the connecting plate (601). A fixing rod (608) is fixedly installed on one side of the lower end of the connecting plate (601). A push block (609) is fixedly installed on the lower side of one side of the fixing rod (608). A second inner groove (611) is opened on both sides of the upper part of the cover (606). A second spring (612) is fixedly installed on the bottom surface of the two second inner grooves (611).
2. The planting trenching device according to claim 1, characterized in that: The lower end of the chassis (1) is fixedly provided with side plates (2) on both sides. Two rollers (3) are rotatably provided on the opposite side of the two side plates (2). The pit structure (6) is set inside the chassis (1). The upper end of the screw (604) passes through the chassis (1) and is fixedly connected to the output end of the second motor (5). The upper end of the rotating rod (603) passes through the chassis (1) and is fixedly connected to the output end of the first motor (4).
3. The planting trenching device according to claim 1, characterized in that: A push rod (7) is fixedly installed on the upper rear side of the chassis (1), and an inlet cylinder (8) is fixedly installed on the rear upper end of the chassis (1). The lower end of the inlet cylinder (8) extends into the storage tank (9) and is covered with a cover.
4. The planting trenching device according to claim 1, characterized in that: A storage tank (9) is fixedly installed at the rear of the bottom surface of the chassis (1). A liquid outlet pipe (10) is fixedly installed at the lower end of the storage tank (9). The liquid outlet pipe (10) is fixedly fitted with a fixing sleeve (11) at the lower part of its body.
5. A planting trenching device according to claim 4, characterized in that: The lower end of the liquid outlet pipe (10) passes through the lower side of the casing (1), and the liquid outlet of the liquid outlet pipe (10) is located on the upper side of the cover (606).
6. The planting trenching device according to claim 1, characterized in that: The baffle (12) is located on the lower side of the liquid outlet pipe (10), and the insert (16) penetrates one side of the baffle (12).
7. The planting trenching device according to claim 1, characterized in that: The lower ends of the two pressure rods (605) are fixedly provided with a second fixing plate (610), and the two second fixing plates (610) respectively penetrate into the two second inner grooves (611). The upper ends of the two second springs (612) are respectively fixedly connected to the two second fixing plates (610).