Spiral spartina alterniflora treatment equipment
By designing a spiral-shaped Spartina alterniflora control device, and utilizing the coordinated work of the outer shaft and auxiliary blade assembly, the problem of Spartina alterniflora entanglement was solved, achieving efficient Spartina alterniflora removal and extending the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-14
AI Technical Summary
Existing Spartina alterniflora control devices are prone to getting tangled on the spiral blades during use, resulting in low operating efficiency.
A spiral-shaped Spartina alterniflora control device is designed, comprising an outer shaft, cutting blades, auxiliary blade assembly, left assembly, right assembly, and crank lever. The outer shaft rotates to drive the cutting blades to cut off Spartina alterniflora, and the auxiliary blade assembly automatically shears the tangled Spartina alterniflora during rotation, preventing it from tangling on the outer shaft.
It achieves automatic cutting and entanglement prevention of Spartina alterniflora, extends the service life of the device, and improves work efficiency.
Smart Images

Figure CN224111701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of Spartina alterniflora control technology, and in particular to a spiral Spartina alterniflora control device. Background Technology
[0002] Spartina alterniflora is a perennial herbaceous plant belonging to the Poaceae family. It has a well-developed root system, strong reproductive capacity, and rapid population spread. It is native to the east coast of North America and the Gulf of Mexico and is listed in the first batch of invasive alien species in my country. Therefore, it is necessary to cut and control Spartina alterniflora.
[0003] There are various existing Spartina alterniflora control devices, such as a weed cutter with publication number CN208956403U. This device includes a handle with two handle bars at the top and a fixed plate at the bottom. A gasoline engine is fixed to the handle, and the lower end of the gasoline engine's shaft passes through the fixed plate and connects to a gearbox. The gearbox's output shaft is horizontally positioned, and spiral blades are arranged at both ends of the output shaft along its extension direction. The spiral blades are conical, with a diameter gradually decreasing from the inside to the outside of the output shaft. Several cutting edges are evenly distributed on the outer edge of the spiral blades, which cut Spartina alterniflora. However, in practical applications, Spartina alterniflora easily becomes entangled on the shaft where the spiral blades are located, causing the shaft to malfunction. The machine needs to be stopped to clean the entangled Spartina alterniflora, resulting in low operating efficiency and inconvenience.
[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0005] To address the aforementioned shortcomings, the purpose of this invention is to provide a spiral-type Spartina alterniflora control device that can automatically cut off Spartina alterniflora while preventing it from tangling on the outer shaft, thus extending the device's service life and improving operational efficiency.
[0006] To achieve the above objectives, this utility model provides a spiral-type Spartina alterniflora control device, comprising: an outer shaft, both ends of which are rotatably connected to a fixed plate, the fixed plate being fixedly connected to a lawnmower; a plurality of extension rods are evenly arranged around the surface of the outer shaft, and each extension rod has a cutting blade at its end; an inner shaft, fixedly disposed inside the outer shaft, with a plurality of auxiliary blade groups between the inner shaft and the outer shaft; each auxiliary blade includes a support shaft, a left auxiliary blade, and a right auxiliary blade; the support shaft is fixedly connected to the outer shaft, and the left and right auxiliary blades are rotatably connected to the support shaft; a left and a right assembly, respectively elastically disposed at both ends of the inner shaft; each left and right assembly has an extension assembly, and each extension assembly has a plurality of movable support plates, the movable support plates being slidably connected to the left and right auxiliary blades respectively; two crank levers, respectively rotatably disposed at both ends of the outer shaft; each crank lever has a slidably inserted rod that is rotatably connected to the left and right assembly; and each fixed plate has a wave-shaped seat that cooperates with the crank lever.
[0007] According to the spiral Spartina alterniflora control equipment of this utility model, each of the movable support plates is fixedly provided with a guide post, and each of the left auxiliary blade and the right auxiliary blade is provided with a guide groove.
[0008] According to the spiral-type Spartina alterniflora control equipment of this utility model, springs are provided between the left component and the side wall of the outer shaft, and between the right component and the side wall of the outer shaft.
[0009] According to the spiral-type Spartina alterniflora control equipment of this utility model, both ends of the cutting blade are provided with V-shaped grooves.
[0010] According to the spiral Spartina alterniflora control equipment of this utility model, both ends of the outer shaft are provided with connecting shafts, the connecting shafts are rotatably connected to the fixed plate, and each connecting shaft is provided with a pulley, the pulleys being connected to the drive mechanism on the lawnmower via a belt.
[0011] According to the spiral Spartina alterniflora control equipment of this utility model, when the spring is in its natural state, both the left auxiliary blade and the right auxiliary blade are located inside the outer shaft.
[0012] The purpose of this invention is to provide a spiral-type Spartina alterniflora control device, which has the following beneficial effects:
[0013] 1. By setting up structures such as an outer shaft and cutting blades, the outer shaft can drive several cutting blades to cut Spartina alterniflora, and the V-groove structure can achieve a gathering effect, ensuring a good cutting effect.
[0014] 2. By setting up auxiliary blade assembly, left kit, right kit and crank lever and other mechanisms, the auxiliary blade assembly can automatically cut Spartina alterniflora during the rotation of the outer shaft, avoiding Spartina alterniflora from getting tangled on the outer shaft, extending the service life of the device and improving work efficiency.
[0015] In summary, the beneficial effects of this utility model are: it can automatically cut Spartina alterniflora, and it can also prevent Spartina alterniflora from getting tangled on the outer shaft, thus extending the service life of the device and improving work efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 yes Figure 1 Enlarged schematic diagram of part A of the structure;
[0018] Figure 3 This is an enlarged schematic diagram of part of the structure of this utility model;
[0019] In the diagram: 1-Outer shaft, 11-Connecting shaft, 12-Pulley, 2-Fixing plate, 21-Wave ring seat, 3-Extension rod, 31-Cutting blade, 32-V-groove, 4-Support shaft, 41-Left auxiliary blade, 42-Right auxiliary blade, 5-Inner shaft, 6-Left assembly, 7-Right assembly, 8-Moving support plate, 9-Crank lever. Detailed Implementation
[0020] 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. 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 scope of the present utility model.
[0021] See Figures 1-3 This utility model provides a spiral-type Spartina alterniflora control device, comprising:
[0022] The outer shaft 1 has connecting shafts 11 fixedly connected to both ends. The connecting shafts 11 are rotatably connected to the fixed plate 2. The fixed plate 2 is fixedly connected to the lawnmower (the lawnmower is a relatively mature existing technology, and its structure and principle are common knowledge to those skilled in the art, so it will not be described in detail). Each connecting shaft 11 is equipped with a pulley 12, which can drive the connecting shaft 11 to rotate synchronously. The pulley 12 is connected to the drive mechanism on the lawnmower through a belt, so that the connecting shaft 11 can drive the outer shaft 1 to rotate. During this process, the fixed plate 2 does not rotate.
[0023] Several extension rods 3 are fixedly connected to the outer shaft 1, and the extension rods 3 are evenly arranged around the axis of the outer shaft 1. The end of each extension rod 3 away from the outer shaft 1 is fixedly connected to a cutting blade 31. When the outer shaft 1 drives the extension rods 3 to rotate, the cutting blade 31 can cut the Spartina alterniflora, thereby achieving the control of Spartina alterniflora.
[0024] The inner shaft 5 is fixed inside the outer shaft 1 and is concentric with the outer shaft 1. Several auxiliary blade groups are provided between the outer shaft 1 and the inner shaft 5. Each auxiliary blade group includes a support shaft 4, a left auxiliary blade 41 and a right auxiliary blade 42. Both ends of the support shaft 4 are fixedly connected to the inner side wall of the outer shaft 1. The left auxiliary blade 41 and the right auxiliary blade 42 are rotatably connected to the support shaft 4. Adjacent left auxiliary blades 41 and right auxiliary blades 42 are staggered. When the left auxiliary blades 41 and right auxiliary blades 42 rotate in opposite directions, they can cut the Spartina alterniflora wrapped around the outer shaft 1. The outer shaft 1 is provided with clearance grooves that cooperate with the left auxiliary blades 41 and right auxiliary blades 42.
[0025] Both ends of the inner shaft 5 are slidably fitted with a left sleeve 6 and a right sleeve 7. An extension sleeve is fixedly connected to the side wall of the left sleeve 6 and the right sleeve 7 that are close to each other. The two extension sleeves are symmetrical with respect to the axis of the inner shaft 5. Several movable support plates 8 are fixedly connected to each extension sleeve. Several movable support plates 8 that cooperate with the left sleeve 6 are in one-to-one correspondence with several left auxiliary blades 41. Several movable support plates 8 that cooperate with the right sleeve 7 are in one-to-one correspondence with several right auxiliary blades 42. Guide posts are fixedly connected to the surface of each movable support plate 8. Guide grooves that cooperate with guide posts are opened on the left auxiliary blades 41 and the right auxiliary blades 42.
[0026] Two crank levers 9 are rotatably located at both ends of the outer shaft 1. Both ends of the outer shaft 1 are provided with through slots. The crank levers 9 are rotatably located in the two through slots. The end of the crank levers 9 near the inner shaft 5 is slidably inserted with a plug. The two plugs are rotatably connected to the left assembly 6 and the right assembly 7 respectively. The fixed plate 2 is fixedly connected with a wave ring seat 21 that can cooperate with the crank levers 9.
[0027] See Figures 1-3 Preferably, springs are provided between the left component 6 and the end side wall of the outer shaft 1, and between the right component 7 and the end side wall of the outer shaft 1. The springs can provide return power. When the springs are in their natural state, the left auxiliary blade 41 and the right auxiliary blade 42 are both located inside the outer shaft 1.
[0028] See Figures 1-3 Preferably, both ends of the cutting blade 31 are provided with V-grooves 32. The V-grooves 32 can play a certain gathering role and improve the cutting effect of the cutting blade 31 to a certain extent.
[0029] In the implementation of this utility model: the user installs the device on a weeder and then starts the drive mechanism on the weeder. The drive mechanism drives the outer shaft 1 to rotate through the pulley 12. During this process, the fixed plate 2 does not rotate, and the outer shaft 1 drives several cutting blades 31 to rotate, cutting Spartina alterniflora. During the rotation of the outer shaft 1, the crank lever 9 cooperates with the wave ring seat 21, causing the crank lever 9 to rotate back and forth with its connection point with the side wall of the through groove as the center, thereby driving the left assembly 6 and the right assembly 7 to move back and forth. When the left assembly 6 and the right assembly 7 move away from the center of the inner shaft 5, the left auxiliary blade 41 and the right auxiliary blade 42 of the same auxiliary blade group rotate towards each other and extend out of the outer shaft 1 to cut the Spartina alterniflora wrapped around the surface of the outer shaft 1, thereby preventing the Spartina alterniflora from wrapping around the outer shaft 1 and extending the service life of the device.
[0030] This utility model provides a spiral-type Spartina alterniflora control device, which has the following beneficial effects:
[0031] 1. By setting up structures such as an outer shaft and cutting blades, the outer shaft can drive several cutting blades to cut Spartina alterniflora, and the V-groove structure can achieve a gathering effect, ensuring a good cutting effect.
[0032] 2. By setting up auxiliary blade assembly, left kit, right kit and crank lever and other mechanisms, the auxiliary blade assembly can automatically cut Spartina alterniflora during the rotation of the outer shaft, avoiding Spartina alterniflora from getting tangled on the outer shaft, extending the service life of the device and improving work efficiency.
[0033] In summary, the beneficial effects of this utility model are: it can automatically cut Spartina alterniflora, and it can also prevent Spartina alterniflora from getting tangled on the outer shaft, thus extending the service life of the device and improving work efficiency.
[0034] Of course, there may be many other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.
Claims
1. A spiral-type Spartina alterniflora control device, characterized in that, include: An outer shaft is rotatably connected to a fixed plate at both ends, and the fixed plate is fixedly connected to a lawnmower. Several extension rods are evenly arranged around the surface of the outer shaft, and each extension rod has a cutting blade at its end. An inner shaft is fixedly disposed inside an outer shaft. Several auxiliary blade groups are provided between the inner shaft and the outer shaft. Each auxiliary blade includes a support shaft, a left auxiliary blade, and a right auxiliary blade. The support shaft is fixedly connected to the outer shaft, and the left and right auxiliary blades are rotatably connected to the support shaft. The left and right components are elastically set at both ends of the inner shaft. Both the left and right components are provided with extension components, and each extension component is provided with several movable support plates. The movable support plates are slidably connected to the left auxiliary blade and the right auxiliary blade, respectively. Two crank levers are respectively rotatably located at both ends of the outer shaft. Each crank lever has a slidable insert rod that is rotatably connected to the left and right components. Each fixed plate is provided with a wave ring seat that cooperates with the crank lever.
2. The spiral-type Spartina alterniflora control equipment according to claim 1, characterized in that, Each of the movable support plates is fixedly provided with a guide post, and each of the left auxiliary blade and the right auxiliary blade is provided with a guide groove.
3. The spiral-type Spartina alterniflora control equipment according to claim 1, characterized in that, Springs are provided between the left assembly and the outer shaft sidewall, and between the right assembly and the outer shaft sidewall.
4. The spiral-type Spartina alterniflora control equipment according to claim 1, characterized in that, Both ends of the cutting blade are provided with V-shaped grooves.
5. The spiral-type Spartina alterniflora control equipment according to claim 1, characterized in that, Both ends of the outer shaft are provided with connecting shafts, which are rotatably connected to the fixed plate. Each connecting shaft is provided with a pulley, which is connected to the drive mechanism on the lawnmower via a belt.
6. The spiral-type Spartina alterniflora control equipment according to claim 3, characterized in that, When the spring is in its natural state, both the left auxiliary blade and the right auxiliary blade are located inside the outer shaft.
Citation Information
Patent Citations
Weeding machine
CN208956403U