A device for spraying asparagus
By designing an asparagus spraying device with a sliding nozzle and rope drive system, the inconvenience of operation and the risk of pesticide contact caused by fixing the spraying end have been solved, achieving convenient and safe all-round spraying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 河北省农林科学院经济作物研究所
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-03
AI Technical Summary
The spraying end of the existing asparagus spraying device is fixed and not easy to move, which requires manual movement when spraying in multiple areas, making operation inconvenient and increasing the risk of pesticide contact.
An asparagus spraying device was designed, comprising a vehicle body, a spray cylinder, a connecting rod, a rope winding roller, and a nozzle. The device uses a motor to drive the connecting rod to rotate and a rope transmission system to enable the nozzle to slide and adjust its position, allowing the operator to perform all-around spraying on the vehicle body.
It enables convenient application of pesticides to all parts of asparagus, reduces the risk of operators coming into contact with pesticides, and improves spraying efficiency and safety.
Smart Images

Figure CN224440189U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of asparagus spraying technology, and in particular relates to an asparagus spraying device. Background Technology
[0002] Asparagus, the young shoots of the perennial herbaceous plant *Asparagus officinalis*, belonging to the Asparagaceae family and the *Asparagus* genus, is edible as a vegetable. Before emerging from the soil, it is white and called white asparagus, while after emerging, it turns green and is called green asparagus. Regardless of the growing region or variety, asparagus will turn green when exposed to sunlight, while being buried in the soil or shaded from sunlight will result in a whiter color. Asparagus is rich in vitamins B and A, as well as folic acid, selenium, iron, manganese, zinc, and other trace elements. It also contains all the essential amino acids for the human body. With economic development, consumer demand for asparagus has increased, and to ensure the survival rate of asparagus, it is necessary to spray pesticides during the planting period.
[0003] A utility model patent with publication number CN210671804U discloses an all-around spraying device for asparagus, including a base and a fixed column. A second connecting pipe with an L-shaped structure is inserted through the middle of the fixed column. A spraying device is fixedly connected to the upper part of the L-shaped structure of the second connecting pipe. An adjusting device is fixedly connected to the lower end of the fixed column. A pesticide tank is fixedly installed in the middle of the upper end of the base. A fixed support is welded to the upper right end of the base. A pressure booster is fixedly installed on the upper end of the fixed support. A caster wheel is provided at each of the four corners of the lower part of the base. Three sets of first connecting pipes are provided on the right end of the pesticide tank, and a water pipe is connected to both the first connecting pipes and the fixed column. This prior art has the following problems: the spraying end of the prior art is fixed and not easy to move, resulting in only one area being sprayed in actual use. When spraying multiple areas, the spraying end needs to be moved manually, which is inconvenient and also makes it easy for workers to come into contact with pesticides.
[0004] Therefore, there is an urgent need for an asparagus spraying device to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide an asparagus spraying device to solve the problem that the spraying end of the existing technology is fixed and not easy to move, which means that it can only spray one area in actual use. When spraying multiple areas, it is necessary to manually move the spraying end, which is very inconvenient and also makes it easy for workers to come into contact with pesticides.
[0006] To achieve the above objectives, this utility model provides the following solution:
[0007] An asparagus spraying device includes a vehicle body with a spray cylinder placed on the vehicle body. A connecting rod is provided on the top surface of the spray cylinder. A rope winding roller is fixedly connected to one end of the connecting rod near the spray cylinder, and a fixed pulley is rotatably connected to the other end of the connecting rod away from the spray cylinder.
[0008] A nozzle is slidably connected along the length of the connecting rod. A dispensing hose is connected between the nozzle and the cartridge. A rope is provided between the nozzle and the take-up roller. One end of the rope is fixedly connected to the nozzle, and the other end of the rope passes around the fixed pulley and is fixed to the take-up roller.
[0009] A first driving device is installed on the top surface of the cartridge, and the cartridge is rotatably connected to the connecting rod through the first driving device;
[0010] A second drive device is shaft-connected to one side of the take-up roller, and the second drive device is used to control the take-up and release of the rope.
[0011] Preferably, the connecting rod is inclined at 15-35° along the horizontal plane, the rope take-up roller is located at the lower end of the connecting rod, and the fixed pulley is located at the upper end of the connecting rod.
[0012] Preferably, the top surface of the connecting rod is provided with a slide rail, and the top of the nozzle is fixedly connected with a U-shaped slider, which slides in cooperation with the slide rail.
[0013] Preferably, at least two rollers are symmetrically arranged on the inner side of the top of the slider, and the slider is slidably connected to the slide rail through the rollers.
[0014] Preferably, the take-up roller is provided with a locking structure.
[0015] Preferably, the locking structure includes a ratchet and a ratchet tooth that engages with the ratchet. The ratchet is coaxially and fixedly connected to one side of the rope take-up roller. One end of the ratchet tooth is rotatably connected to the top surface of the connecting rod. A spring is provided between the middle of the ratchet tooth and the connecting rod.
[0016] Preferably, the second drive device is a second motor.
[0017] Preferably, the first driving device is a first motor, and the output end of the first motor is coaxially connected to the connecting rod.
[0018] Compared with the prior art, the present invention has the following advantages and technical effects:
[0019] This invention, through the design of a sliding nozzle and a rope transmission system, allows the operator to rotate the connecting rod along the motor shaft by starting the motor while riding in the vehicle. At the same time, rotating the rope winding roller controls the nozzle to slide along the connecting rod, which can adjust the area of pesticide spraying. This allows the operator to complete all-round application of pesticides to asparagus without entering the spraying area, and also reduces the risk of human contact with pesticides. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 for Figure 1 Enlarged view of A in the middle;
[0023] Figure 3 for Figure 1 Enlarged view of B in the middle;
[0024] The components are as follows: 1. Vehicle body; 2. Seat; 3. Front wheel; 4. Rear wheel; 5. Drug cartridge; 6. Motor; 7. Connecting rod; 8. Slide rail; 9. Rope take-up roller; 10. Drug dispensing hose; 11. Rope; 12. Fixed pulley; 13. Slider; 14. Roller; 15. Nozzle; 16. Vertical shaft; 17. Sleeve; 18. Positioning hole; 19. Positioning bolt; 20. Handle. Detailed Implementation
[0025] 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.
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] Example 1:
[0028] Reference Figures 1 to 2This embodiment discloses an asparagus spraying device, including a vehicle body 1, a seat 2 mounted on the vehicle body 1, a front wheel 3 mounted at the front end of the vehicle body 1, and two rear wheels 4 symmetrically mounted at the rear end. A spraying cylinder 5 is placed on the vehicle body 1, and a connecting rod 7 is provided on the top surface of the spraying cylinder 5. A first driving device is mounted on the top surface of the spraying cylinder 5. The spraying cylinder 5 is rotatably connected to the connecting rod 7 through the first driving device. The first driving device is a first motor 6. The output end of the first motor 6 is coaxially connected to the connecting rod 7. A rope take-up roller 9 is fixedly connected to one end of the connecting rod 7 near the spraying cylinder 5. A second driving device is axially connected to one side of the rope take-up roller 9. The second driving device is a second motor and is used to control the take-up and release of the rope 11.
[0029] A fixed pulley 12 is rotatably connected to the end of the connecting rod 7 away from the cartridge 5; a nozzle 15 is slidably connected along the length of the connecting rod 7, and a slide rail 8 is provided on the top surface of the connecting rod 7. A U-shaped slider 13 is fixedly connected to the top of the nozzle 15, and the slider 13 is slidably engaged with the slide rail 8. At least two rollers 14 are symmetrically provided on the inner side of the top of the slider 13, and the slider 13 is slidably connected to the slide rail 8 through the rollers 14.
[0030] A dispensing hose 10 connects the nozzle 15 and the cartridge 5. The cartridge 5 contains a pump for supplying medicine, which supplies medicine to the nozzle 15 through the dispensing hose 10. A rope 11 connects the nozzle 15 and the take-up roller 9. One end of the rope 11 is fixedly connected to the nozzle 15, and the other end of the rope 11 passes over a fixed pulley 12 and is fixed to the take-up roller 9. A first motor 6 is mounted on the top surface of the cartridge 5. The output end of the first motor 6 is connected to a servo rotating platform. A connecting rod 7 is fixedly connected to the servo rotating platform. By setting the servo rotating platform, the connecting rod 7 can only rotate 180°, preventing spray from hitting the operator. The first motor 6 is a servo motor of 400W or higher (such as the Mitsubishi HG-SR series), and the servo rotating platform is the new SR40-9W platform.
[0031] When in use, the operator moves in the vehicle and starts the first motor 6 and the servo rotating platform. The connecting rod 7 can rotate 180° along the motor shaft. Starting the second motor can drive the nozzle 15 to move back and forth, thereby adjusting the area of pesticide spraying. This allows the operator to complete the all-round application of pesticides to asparagus without entering the spraying area, and also reduces the risk of human contact with pesticides.
[0032] Example 2:
[0033] The only difference between this embodiment and Embodiment 1 is that: in this embodiment, the take-up roller 9 does not have a second motor; a rocker arm is axially connected to one side of the take-up roller 9, and a locking structure is provided. The locking structure includes a ratchet and a ratchet tooth that engages with the ratchet. The ratchet is coaxially and fixedly connected to one side of the take-up roller 9, one end of the ratchet tooth is rotatably connected to the top surface of the connecting rod 7, and a spring is provided between the middle of the ratchet tooth and the connecting rod 7.
[0034] The connecting rod 7 is inclined at 15-35° along the horizontal plane, the rope take-up roller 9 is located at the lower end of the connecting rod 7, and the fixed pulley 12 is located at the upper end of the connecting rod 7.
[0035] Before use, the operator manually rotates the rocker arm while simultaneously rotating the rope take-up roller 9 to control the nozzle 15 to slide along the connecting rod 7, extending or retracting the rope 11 to the appropriate length. Once the nozzle 15 is adjusted to the desired position, a locking structure can be used to limit the position of the rope 11. This locking structure is existing technology and will not be described in detail here. When the rope take-up roller 9 controls the rope 11 to be extended or retracted until the nozzle 15 is in the appropriate position, control of the rope take-up roller 9 is stopped, as the position of the rope 11 is limited by the locking structure. Since the connecting rod 7 is inclined, when the locking structure is released, the nozzle 15 will slide towards the pesticide cartridge 5 due to gravity, thus controlling the position of the nozzle 15. Once the position of the nozzle 15 is adjusted, it begins to move forward, and then the first motor 6 is started, causing the nozzle 15 to spray pesticides onto the crops.
[0036] Example 3:
[0037] The difference between this embodiment and embodiment 2 is that this embodiment also includes a vertical shaft 16 coaxially fixedly connected to the front wheel 3. A handle 20 is fixedly connected to the end of the vertical shaft 16 away from the front wheel 3. A sleeve 17 is sleeved on the outside of the vertical shaft 16. At least two positioning holes 18 are evenly spaced along its axial direction on the sleeve 17. Positioning bolts 19 are inserted into the positioning holes 18. By inserting the positioning bolts 19 into the corresponding positioning holes 18, the height of the handle 20 can be adjusted, so that it can be used by operators of different heights, improve the operator's comfort, and further improve the operator's efficiency in controlling the spraying.
[0038] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0039] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. An asparagus spraying device, comprising a vehicle body (1) and a spraying cartridge (5) placed on the vehicle body (1), characterized in that: The top surface of the cartridge (5) is provided with a connecting rod (7). A rope-retracting roller (9) is fixedly connected to one end of the connecting rod (7) near the cartridge (5), and a fixed pulley (12) is rotatably connected to the other end of the connecting rod (7) away from the cartridge (5). A nozzle (15) is slidably connected along the length of the connecting rod (7). A dispensing hose (10) is connected between the nozzle (15) and the cartridge (5). A rope (11) is provided between the nozzle (15) and the take-up roller (9). One end of the rope (11) is fixedly connected to the nozzle (15), and the other end of the rope (11) passes around the fixed pulley (12) and is fixed to the take-up roller (9). The top surface of the cartridge (5) is equipped with a first driving device, and the cartridge (5) is rotatably connected to the connecting rod (7) through the first driving device; A second drive device is connected to one side of the take-up roller (9), which is used to control the take-up and release of the rope (11).
2. The asparagus spraying device according to claim 1, characterized in that: The connecting rod (7) is inclined at 15-35° along the horizontal plane, the rope take-up roller (9) is located at the lower end of the connecting rod (7), and the fixed pulley (12) is located at the upper end of the connecting rod (7).
3. The asparagus spraying device according to claim 1, characterized in that: The top surface of the connecting rod (7) is provided with a slide rail (8), and the top of the nozzle (15) is fixedly connected with a U-shaped slider (13), and the slider (13) slides in cooperation with the slide rail (8).
4. A device for applying a pesticide to asparagus as claimed in claim 3 wherein: The slider (13) is symmetrically provided with at least two rollers (14) on the inner side of its top, and the slider (13) is slidably connected to the slide rail (8) through the rollers (14).
5. The asparagus spraying device according to claim 1, characterized in that: The take-up roller (9) is equipped with a locking structure.
6. A device for applying a pesticide to asparagus spears as claimed in claim 5 wherein: The locking structure includes a ratchet and a ratchet tooth that engages with the ratchet. The ratchet is coaxially and fixedly connected to one side of the rope take-up roller (9). One end of the ratchet tooth is rotatably connected to the top surface of the connecting rod (7). A spring is provided between the middle of the ratchet tooth and the connecting rod (7).
7. The asparagus spraying device according to claim 1, characterized in that: The second drive device is a second motor.
8. The asparagus spraying device according to claim 1, characterized in that: The first driving device is a first motor (6), and the output end of the first motor (6) is coaxially connected to the connecting rod (7).