Lotus root digging device

By designing a grabbing frame and a water spray system to form a V-shaped area for lotus root placement, the problem of low efficiency in flushing out silt from lotus roots is solved, achieving efficient silt flushing and lotus root floating, making it suitable for novice operators.

CN224250245UActive Publication Date: 2026-05-19WUHAN ACADEMY OF AGRI SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN ACADEMY OF AGRI SCI
Filing Date
2025-03-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing technologies, direct water jetting is inefficient at breaking open lotus roots that are tightly covered with silt. It requires repeated impacts and manual judgment of the growth direction, resulting in low operational efficiency.

Method used

A lotus root digging device was designed, including a gripping frame, a first water spray group, and a second water spray group. The water spray group forms a V-shaped area around the lotus root, providing a wrapping water spray, and is positioned by a locking component. It also provides feedback to block and correct deviations, thereby improving operational accuracy.

Benefits of technology

It improves the efficiency of clearing silt from lotus roots, reduces the difficulty of operation, and is especially convenient for beginners, achieving efficient silt clearing and lotus root floating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lotus root digging device which comprises a grabbing and lifting frame, a first water spraying set, a second water spraying set and a locking piece. The first water spraying set is installed at the bottom end of the grabbing and lifting frame. The second water spraying sets are rotationally connected to the two sides of the first water spraying set correspondingly and have a first position state in which a V-shaped area is defined by the first water spraying sets and a second position state in which the second water spraying sets are parallel to the grabbing and lifting frame, and the first water spraying sets and the second water spraying sets are used for sleeving the peripheries of lotus roots when in the first position state and are used for spraying water to the peripheries of the lotus roots when in the second position state. And the water is located in the V-shaped area and sprays water towards the interior of the V-shaped area. According to the lotus root digging device provided by the utility model, a V-shaped clamping area formed by the first water spraying group and the second water spraying group in the first position state can sleeve the periphery of a lotus root, carry out wrapping flushing, efficiently flush away sludge and sleeve the lotus root, so that the lotus root digging device has the advantages of blocking feedback, rectifying deviation and being easy for a green hand operator; the lotus root digging device can be conveniently controlled to reciprocate along the growth direction of lotus roots.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural tools, specifically to a lotus root digging device. Background Technology

[0002] Lotus roots grow in deep underwater silt, and for a long time, harvesting has mainly been done manually by digging out the surface silt of the lotus field with tools such as lotus shovels. Alternatively, high-pressure water pipes can be used to flush away the silt for harvesting. For example, Chinese Patent 201610021764.8 discloses a lightweight human shoulder-mounted lotus root harvester, including a machine box, a lotus root loosening device, and a lotus root harvesting device; the machine box is generally cubic in structure, the lotus root loosening device is located on the left side of the machine box, and the lotus root harvesting device is located on the right side of the machine box; the machine box includes a housing and a shoulder strap; the lotus root loosening device includes a water pump, an inlet pipe, a water delivery hose, an outlet hard pipe, a gripping ring, a solenoid valve, and a switch button.

[0003] The existing technology has the following problems: direct water jetting is inefficient at breaking up lotus roots that are tightly covered by silt. It requires repeated back-and-forth impacts to loosen them and make them float to the surface. Furthermore, during the back-and-forth impacts, it is necessary to follow the growth direction of the lotus root, which requires human judgment. This makes the operation efficiency of novices relatively lower. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a lotus root digging device to solve the technical problem of low efficiency in digging lotus roots covered with silt by direct water jetting in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a lotus root harvesting device, comprising:

[0007] Grab the lifting rack;

[0008] The first water spray unit is installed at the bottom end of the grabbing frame;

[0009] The second water spray group, a pair of which are rotatably connected to both sides of the first water spray group, has a first position state forming a V-shaped area with the first water spray group, and a second position state parallel to the lifting frame. In the first position state, the first and second water spray groups are used to fit around the lotus root, placing it within the V-shaped area, and spraying water into the V-shaped area; and

[0010] A locking element, which is installed on the second water spray assembly, is used to position the second water spray assembly in a first position state and a second position state.

[0011] In some embodiments, the first water spray assembly includes a trapezoidal base and a first nozzle, with a plurality of the first nozzles disposed on the lower surface of the trapezoidal base, which is connected to the bottom of the gripper frame.

[0012] In some embodiments, the second water spray assembly includes a rod and a second nozzle, the rod being rotatably connected to the two sides of the trapezoidal base, and a plurality of the second nozzles being disposed on the side of the rod near the trapezoidal base.

[0013] In some embodiments, the side of the rod closest to the trapezoidal base is inclined downwards.

[0014] In some embodiments, the locking member includes a hand-tightening bolt, the rod body has a screw hole, the trapezoidal base has a first slot on both sides, the top of the trapezoidal base is provided with an extension plate, the extension plate has a second slot, the included angle between the first slot and the second slot is 90 degrees, the hand-tightening bolt is threaded to the corresponding screw hole, and is inserted into the corresponding first slot or second slot.

[0015] In some embodiments, a water supply pipeline is also included, which includes a main pipeline and branch pipelines. A plurality of branch pipelines are connected to the main pipeline. The main pipeline is installed on the grabber frame, and the plurality of branch pipelines are respectively connected to and communicate with the first nozzle and the second nozzle.

[0016] In some embodiments, the top of the gripper has a ring-shaped handle.

[0017] In some embodiments, the bottom of the trapezoidal base has several openings.

[0018] In some embodiments, the rod is in the shape of a straight rod.

[0019] In some embodiments, the rod is V-shaped.

[0020] Compared with the prior art, the lotus root digging device provided by this utility model can be wrapped around the lotus root in a V-shaped clamping area formed by the first water spray group and the second water spray group in the first position state, so as to carry out a wrapping water flushing, which can efficiently wash away the silt. Moreover, when wrapped around the lotus root, it has blocking feedback, can correct deviation, is easy for novice operators, and is easy to control the lotus root digging device to move back and forth along the growth direction of the lotus root. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of the first position state of the lotus root digging device provided in this embodiment of the utility model;

[0022] Figure 2 This is a top view of the lotus root digging device provided in this embodiment of the utility model;

[0023] Figure 3 This is a three-dimensional view of the second position state of the lotus root digging device provided in this embodiment of the utility model;

[0024] Figure 4 This is a top view of the rod structure of a lotus root digging device provided in another embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Lifting frame; 101. Ring handle;

[0027] 2. First water spray assembly; 21. Trapezoidal base; 22. First nozzle; 201. Inlet;

[0028] 3. Second water spray unit; 31. Rod body; 32. Second nozzle;

[0029] 4. Locking component; 41. Hand-tightening bolt; 42. Extension plate;

[0030] 5. Water supply pipeline; 51. Main pipeline; 52. Branch pipeline;

[0031] 6. Lotus root. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] To address the technical problem of low efficiency in directly flushing lotus roots covered in silt with water pipes, this utility model provides a lotus root digging device that can be fitted around the lotus root to wrap and flush away the silt. It also has a guiding function, reducing the difficulty of judging the growth direction and repeatedly flushing the lotus root.

[0034] Please see Figure 1 , Figure 1 This is a three-dimensional view of the first position state of the lotus root digging device in one embodiment of the present invention. The lotus root digging device includes a gripping frame 1, a first water spray group 2, a second water spray group 3, and a locking member 4. The gripping frame 1 is used by the user to hold the lotus root digging device for use. The first water spray group 2 is installed at the bottom end of the gripping frame 1, and its water spraying direction is as follows: Figure 1Water is sprayed from the front side of the lifting frame 1 shown. A pair of second water spray groups 3 are rotatably connected to both sides of the first water spray group 2, having a first position state that forms a V-shaped area with the first water spray group 2, and a second position state that is parallel to the lifting frame 1. In the first position state, the first water spray group 2 and the second water spray group 3 are used to fit around the lotus root, placing it within the V-shaped area, and spraying water into the V-shaped area. The V-shaped fitting area can fit around the lotus root. At this time, the second water spray groups 3 on both sides form a barrier on both sides of the lotus root. If it deviates from the growth direction, it will collide with the lotus root. Therefore, with the presence of obstruction feedback, the direction of movement to clear away the silt can be easily controlled along the growth direction of the lotus root. Furthermore, when there is deviation, the obstruction feedback can correct the deviation, making it easy for novice operators to operate and efficiently clearing away the silt from the lotus root, thus improving the overall efficiency of lotus root digging. The locking component 4 is installed on the second water spray group 3 and is used to position the second water spray group 3 in the first position state and the second position state. That is, when adjusted to the first position state, the second water spray group 3 can be positioned. After unlocking, it can be switched to the second position state and then locked again.

[0035] Understandably, this lotus root digging device, after clearing away the silt covering the lotus root, allows the lotus root to automatically float to the water surface, thus achieving the purpose of digging the lotus root to the water surface.

[0036] In one embodiment, please refer to Figure 1 and Figure 2 To achieve a basic flushing effect on silt, the first water spray assembly 2 includes a trapezoidal base 21 and a first nozzle 22. Multiple first nozzles 22 are disposed on the lower surface of the trapezoidal base 21, i.e., attached... Figure 1 The trapezoidal base 21 is connected to the bottom of the grabbing frame 1 at the front side. By holding the grabbing frame 1, the first water spray group 2 can be inserted into the underwater silt. The two sides of the trapezoidal base 21 form a sloping guide, so that the second water spray group 3 installed on both sides has an angle and can form a V-shaped fitting area for fitting onto the outer periphery of the lotus root.

[0037] Understandably, the area fitted onto the outer periphery of the lotus root can be either V-shaped or U-shaped. To avoid the opening being too narrow and affecting the fitting of lotus roots with larger diameters, the V-shaped opening is larger and more versatile.

[0038] In one embodiment, please refer to Figure 1 and Figure 2To create a clamping flushing effect, the second water spray group 3 includes a rod 31 and a second nozzle 32. The rod 31 is rotatably connected to the two sides of the trapezoidal base 21. Multiple second nozzles 32 are arranged on the side of the rod 31 near the trapezoidal base 21. The rod 31 and the trapezoidal base 21 form a basic enclosure of the V-shaped clamping area. The first nozzle 22 and the second nozzle 32 distributed on it can spray water into the V-shaped area, which has a flushing effect on the mud wrapped around the lotus root. Furthermore, when it is set on the outer periphery of the lotus root, the flushing is enveloping, efficient and with virtually no dead angles.

[0039] Furthermore, in order for the second nozzle 32 to spray water forward in the second position state, forming a second water spray pattern, please refer to [link to relevant documentation]. Figure 3 The rod 31 is inclined downward on one side near the trapezoidal base 21, so that the nozzle sprays downward from the side. This inclined surface, without affecting the original function, in the second position, the nozzle is lateral to the central axis and biased to the front, so as to rinse objects in the middle area of ​​the front side. This state can be used when a large-area close-range rinsing is required.

[0040] Understandably, the second position is also the storage state of the second water spray group 3, which is convenient for storage in the storage box.

[0041] In one embodiment, please refer to Figure 1 To facilitate switching and locking between the first and second position states, the locking component 4 includes a hand-operated bolt 41, which is a bolt that can be rotated manually. The rod body 31 has a threaded hole, and the trapezoidal base 21 has first slots on both sides for positioning in the first position state. The top of the trapezoidal base 21 has an extension plate 42 with a second slot for positioning in the second position state. The angle between the first and second slots is 90 degrees, and the second slot is located above and behind the first slot. The hand-operated bolt 41 is threaded into the corresponding threaded hole and inserted into the corresponding first or second slot. After rotating the hand-operated bolt 41 to disengage from the first slot, the second water spray assembly 3 is rotated to align with the upper second slot, and then the hand-operated bolt 41 is rotated again to insert it into the second slot, thus positioning in the second position state.

[0042] Understandably, the locking position is achieved by adjusting whether the hand-twisted screw 41 is inserted into the first or second slot. When disengaged from the first or second slot, the second water spray assembly 3 can be rotated. When inserted into either the first or second slot, the corresponding position can be determined.

[0043] In one embodiment, please refer to Figure 1In order to supply water to each nozzle, a water supply pipeline 5 is also included. The water supply pipeline 5 includes a main pipeline 51 and branch pipelines 52. Multiple branch pipelines 52 are connected to the main pipeline 51. The main pipeline 51 is installed on the grabbing frame 1. Multiple branch pipelines 52 are respectively connected to and communicate with the first nozzle 22 and the second nozzle 32. The main pipeline 51 is connected to the water pump for water supply, and water flows from the main pipeline 51 to each branch pipeline 52. There are three first nozzles 22. Each of the three first nozzles 22 is connected to a branch pipeline 52. Multiple second nozzles 32 on the second water spray group 3 have a communicating cavity in the rod body 31. They are connected to the communicating cavity through a branch pipeline 52, thereby communicating with and supplying water to multiple second nozzles 32.

[0044] It is understandable that the above water supply pipe 5 is only one feasible implementation method. Other water supply pipes 5 are acceptable as long as they can supply water to the first nozzle 22 and the second nozzle 32. No other limitation is made here.

[0045] In one embodiment, please refer to Figure 1 To facilitate the user's grip, the top of the gripping frame 1 has a ring handle 101.

[0046] In one embodiment, please refer to Figure 1 In order to reduce the resistance of the trapezoidal base 21 when inserted into the silt, the bottom of the trapezoidal base 21 is provided with a number of openings 201. The number of openings 201 is not limited, as long as the basic strength of the trapezoidal base 21 is maintained.

[0047] In one embodiment, please refer to Figure 2 The rod 31 is in the shape of a straight rod, which can form a basic wrap-around flushing system.

[0048] In another embodiment, please refer to Figure 4 The rod 31 is V-shaped, which provides better wrapping and better water coverage.

[0049] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail as follows: The user grasps the ring handle 101, inserts the bottom end of the gripping frame 1 into the water, extends it into the silt, and after determining the position of the lotus root, inserts the lotus root into the V-shaped area formed by the first water spray group 2 and the second water spray group 3, and puts it around the outer circumference of the lotus root to spray water and flush it. It moves along the growth direction of the lotus root and can move back and forth to flush away the silt. After the silt is flushed away, the lotus root can float to the surface of the water due to buoyancy.

[0050] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A device for excavating roots, characterized in that, include: Grab the lifting rack; The first water spray unit is installed at the bottom end of the grabbing frame; The second water spray group, a pair of the second water spray groups are respectively rotatably connected to both sides of the first water spray group, having a first position state that forms a V-shaped area with the first water spray group, and a second position state that is parallel to the grabbing frame. When the first water spray group and the second water spray group are in the first position state, they are used to fit around the lotus root so that it is located in the V-shaped area and spray water towards the V-shaped area. as well as A locking element, which is installed on the second water spray assembly, is used to position the second water spray assembly in a first position state and a second position state.

2. The excavating device of claim 1, wherein, The first water spray assembly includes a trapezoidal base and a first nozzle. A plurality of the first nozzles are disposed on the lower surface of the trapezoidal base, which is connected to the bottom of the gripping frame.

3. The excavating device of claim 2, wherein, The second water spray assembly includes a rod and a second nozzle. The rod is rotatably connected to the two sides of the trapezoidal base, and a plurality of the second nozzles are arranged on the side of the rod near the trapezoidal base.

4. The excavating device of claim 3, wherein The side of the rod closest to the trapezoidal base is inclined downwards.

5. The excavating device of claim 4, wherein, The locking component includes a hand-tightening bolt, a screw hole is provided on the rod body, a first slot is provided on both sides of the trapezoidal base, an extension plate is provided on the top of the trapezoidal base, a second slot is provided on the extension plate, the included angle between the first slot and the second slot is 90 degrees, the hand-tightening bolt is threaded to the corresponding screw hole, and is inserted into the corresponding first slot or second slot.

6. The excavating device of claim 5, wherein, It also includes a water supply pipeline, which includes a main pipeline and branch pipelines. Multiple branch pipelines are connected to the main pipeline. The main pipeline is installed on the grabbing frame. The multiple branch pipelines are respectively connected to and communicate with the first nozzle and the second nozzle.

7. The excavating device of claim 6, wherein, The top of the gripper has a ring handle.

8. The excavating device of claim 7, wherein, The bottom of the trapezoidal base has several openings.

9. The excavating device of claim 8, wherein, The rod is in the shape of a straight rod.

10. The excavating device of claim 9, wherein, The rod is V-shaped and bent.