A cotton field sprayer based on drip irrigation technology and a method of use

Abstract

This invention provides a cotton field sprayer based on drip irrigation technology, comprising a drip irrigation system including a main pipe, branch pipes, a return pipe, and a water tank. The main pipe and return pipe are connected by several sets of branch pipes. Several sets of connectors are provided on the outside of the branch pipes. A spraying component is fixedly connected to one end of each connector. The main pipe is connected to the outlet of the water tank, and the return pipe is connected to the inlet of the water tank. Each connector includes a connecting pipe with a positioning hole at one end and a sealing groove on the outside. Several sets of arc-shaped protrusions are fixedly connected to the upper part of the positioning hole. By fixing connectors on the branch pipes and connecting the spraying components through the connectors, this invention allows the pesticide to be delivered inside the cotton field based on the drip irrigation system and then sprayed onto the cotton plants through the spraying components. This effectively reduces the labor intensity of cotton field spraying and, to a certain extent, reduces the cost of cotton field spraying.

Description

Technical Field

[0001] This invention relates to the field of agricultural equipment technology, specifically to a cotton field sprayer based on drip irrigation technology and its usage method. Background Technology

[0002] Cotton, as one of the major economic crops, is an important strategic resource related to the national economy and people's livelihood. Statistics show that the drip irrigation area in Xinjiang exceeds 50 million mu (approximately 3.3 million hectares), of which nearly 40 million mu (approximately 2.6 million hectares) are irrigated under plastic film. Cotton cultivation requires meticulous attention and a large amount of manual labor. Pesticide spraying is a crucial step in cotton cultivation, especially during periods of severe cotton pests and diseases, typically requiring spraying every 4 to 5 days.

[0003] Currently, there are two main methods for spraying pesticides in cotton fields: drone spraying and manual spraying. While drone spraying saves time and labor, it is easily affected by weather conditions, and during the peak boll-forming stage, the leaves are large and dense, meaning that spraying can only reach the upper leaves of the cotton plant, thus having little effect on the lower leaves. Furthermore, except in large cotton fields, drone spraying is expensive. Manual spraying, on the other hand, requires personnel to carry a large spray tank to eliminate pests quickly, making it extremely labor-intensive and inefficient. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides the following technical solution: a cotton field sprayer based on drip irrigation technology, comprising a drip irrigation system, wherein the drip irrigation system includes a main pipe, branch pipes, a return pipe and a water tank, the main pipe and the return pipe are connected by several sets of branch pipes, several sets of connectors are provided on the outside of the branch pipes, one end of the connector is fixedly connected to a spraying component, the main pipe is connected to the outlet of the water tank and the return pipe is connected to the inlet of the water tank;

[0006] The connector includes a connecting tube, one end of which has a positioning circular hole, and the outside of the connecting tube has a sealing groove. Several sets of arc-shaped protrusions are fixedly connected to the upper part of the inside of the positioning circular hole, and a limit ring is fixedly connected to the end of the positioning circular hole away from the sealing groove.

[0007] The spraying assembly includes a sprayer and a fixing mechanism. The sprayer is fixedly connected to the fixing mechanism. The fixing mechanism includes a transition connection component and a fixing component. The fixing component is fixedly connected to the outside of one end of the transition connection component.

[0008] The transition connection assembly includes a water inlet pipe and a positioning sleeve. The positioning sleeve is fixedly connected to the outside of the water inlet pipe. A water inlet round head is fixedly connected to one end of the water inlet pipe. An elastic skirt is fixedly connected to the outside of the connection point between the water inlet round head and the water inlet pipe.

[0009] The fixing component includes a fixing tube and a fixing ring. The fixing tube includes a positioning section and a fixing section, which are fixedly connected. A fixing ring is fixedly connected to the outside of the fixing section at one end away from the fixing section. Spiral grooves are provided on the outside of the fixing section.

[0010] As a further preferred embodiment, the main pipe is connected to several sets of branch pipes via valves.

[0011] As a further preferred embodiment, the positioning hole has a rectangular cross-section, and the shorter side of the rectangle is arc-shaped. The inner walls of both long sides of the positioning hole are provided with the same number of arc-shaped protrusions, and the arc-shaped protrusions on the inner walls of both sides of the positioning hole are staggered.

[0012] As a further preferred embodiment, the end of the water inlet pipe opposite to the elastic skirt is provided with a thread, and the water inlet pipe is connected to the positioning sleeve through the thread, wherein the length of the thread outside the water inlet pipe is equal to the length of the positioning sleeve.

[0013] As a further preferred embodiment, the elastic skirt is trumpet-shaped, and the end of the elastic skirt with the smaller outer diameter is fixedly connected to the outside of the water inlet pipe, while the other end is fixedly connected to the inner wall of the fixed pipe positioning section opposite to the fixed section.

[0014] As a further preferred embodiment, the inner wall of one end of the fixed section and the positioning section is fixedly connected to the outside of the water inlet pipe. Both the fixed section and the positioning section are made of elastic material, and the positioning section is softer than the fixed section.

[0015] As a further preferred embodiment, the fixed tube will form a spiral groove after the fixed section is elongated, and the position of the spiral groove is adapted to the position of several sets of arc-shaped protrusions on the inner wall of the positioning circular hole.

[0016] As a further preferred embodiment, the diameter of the inlet round head is the same as the inner diameter of the branch pipe, and a connecting port is provided on the outside of the inlet round head, the diameter of which is smaller than the diameter of the inlet round head.

[0017] As a further preferred embodiment, the sprayer includes an extension tube, a nozzle, and a rotating connecting rod. The extension tube is fixedly connected to the water inlet of the nozzle. A rotating connecting rod is fixedly connected to one side of the nozzle via a connecting block. The two ends of the rotating connecting rod are respectively rotatably connected to an adjusting rod and a hand handle. Both the adjusting rod and the hand handle pass through the rotating connecting rod, and the hand handle is positioned between the nozzle and the adjusting rod.

[0018] As a further preferred embodiment, a method for using a cotton field sprayer based on drip irrigation technology, employing the aforementioned cotton field sprayer based on drip irrigation technology, includes adding pesticide solution to a water tank, delivering water into the main pipe via a pressure pump, inserting a fixing mechanism into a positioning hole, at which point one end of the fixing component on the outside of the transition connection assembly will expand the positioning hole, causing deformation of the positioning hole. The fixing component is blocked by a limiting ring inside the positioning hole, the positioning section undergoes compression deformation, and the fixing section undergoes tensile deformation. The water inlet head enters the branch pipe, and the spiral grooves on the fixing section are formed after stretching. The spiral groove and the arc-shaped protrusion on the inner wall of the positioning hole will lock into the spiral groove to fix the fixed section. By rotating the positioning sleeve, the fixing ring is pressed against, so that the spraying assembly is connected to the inside of the branch pipe. Open the valve of the main pipe and the branch pipe to allow the pesticide to enter the inside of the branch pipe. The pesticide enters the fixing mechanism through the connecting port inside the branch pipe, and then enters the nozzle through the extension pipe. The cotton plants are sprayed by holding the hand handle. The spraying range of the nozzle is adjusted by adjusting the lever with the hand handle as the axis. The area in the cotton field with the connector as the base point and the spraying distance of the sprayer as the radius is sprayed.

[0019] (II) Beneficial Effects

[0020] This invention provides a cotton field sprayer based on drip irrigation technology and its application method, which has the following beneficial effects:

[0021] 1. This invention, by fixing a connector on the branch pipe and connecting the spraying assembly through the connector, enables the pesticide to be delivered inside the cotton field based on the drip irrigation system, and then sprayed onto the cotton plants through the spraying assembly. This can effectively reduce the labor intensity of cotton field spraying and, to a certain extent, reduce the cost of cotton field spraying.

[0022] 2. This invention incorporates a connector and a spray assembly. The connector has a positioning hole with an arc-shaped protrusion and a limiting ring inside. Both the positioning and fixing sections of the fixing mechanism are made of elastic material. When the connector is connected to the spray assembly, the positioning section is compressed and the fixing section is stretched. Simultaneously, the spiral groove formed by the stretched fixing tube on the fixing section is held in place by the arc-shaped protrusion, preventing the fixing section from shrinking and ensuring a tight connection between the connector and the spray assembly. At this time, the outer diameter of the positioning section increases due to compression, while the diameter of the fixing section becomes smaller than that of the positioning section. Since both the fixing mechanism and the connector are made of elastic material, the fixing mechanism and the inner wall of the positioning hole will come into contact and seal. Furthermore, the structure of the positioning hole and the spiral groove further enhances the sealing performance between the fixing mechanism and the positioning hole. Thus, a stable and sealed connection between the connector and the spray assembly can be achieved through simple insertion. Moreover, rotating the fixing tube can compress the fixing ring, causing the fixing section to shrink, thereby facilitating the separation of the connector from the spray assembly. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the cotton field sprayer based on drip irrigation technology of the present invention;

[0024] Figure 2 This is a schematic diagram of the spray assembly structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the sprayer structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the fixing mechanism structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the transition connection component structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the fixed component structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the tension structure of the fixing component of the present invention;

[0030] Figure 8 This is a schematic diagram of the connector structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the other end of the connector of the present invention;

[0032] Figure 10 This is a schematic cross-sectional view of the connecting pipe structure of the present invention;

[0033] Figure 11 This is a schematic diagram of the internal structure of the connector and spray assembly connection according to the present invention.

[0034] In the diagram: 1 Main pipe, 2 Branch pipe, 3 Connector, 31 Connecting pipe, 32 Positioning round hole, 33 Sealing groove, 34 Arc-shaped protrusion, 35 Limiting ring, 4 Spray assembly, 41 Sprayer, 411 Extension pipe, 412 Nozzle, 413 Connecting block, 414 Rotating connecting rod, 415 Adjusting rod, 416 Hand handle, 42 Fixing mechanism, 421 Transition connection assembly, 4211 Water inlet pipe, 4212 Positioning sleeve, 4213 Water inlet round head, 4214 Elastic skirt, 422 Fixing assembly, 4221 Fixing pipe, 4222 Fixing ring, 4223 Spiral groove, 5 Return pipe. Detailed Implementation

[0035] 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 denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] like Figure 1 , 2 As shown in Figures 4-10, this embodiment provides a cotton field sprayer based on drip irrigation technology, including a drip irrigation system. The drip irrigation system includes a main pipe 1, branch pipes 2, return pipes 5, and a water tank. The main pipe 1 and the return pipes 5 are connected through several sets of branch pipes 2. Several sets of connectors 3 are provided on the outside of the branch pipes 2. One end of the connectors 3 is fixedly connected to a spraying component 4. The main pipe 1 is connected to the water outlet of the water tank, and the return pipes 5 are connected to the water inlet of the water tank.

[0041] Connector 3 includes a connecting tube 31, one end of which is provided with a positioning round hole 32, and the outside of the connecting tube 31 is provided with a sealing groove 33. Several sets of arc-shaped protrusions 34 are fixedly connected to the upper part of the inside of the positioning round hole 32, and a limit ring 35 is fixedly connected to the end of the positioning round hole 32 away from the sealing groove 33.

[0042] The spray assembly 4 includes a sprayer 41 and a fixing mechanism 42. The sprayer 41 is fixedly connected to the fixing mechanism 42. The fixing mechanism 42 includes a transition connection assembly 421 and a fixing assembly 422. The fixing assembly 422 is fixedly connected to the outside of one end of the transition connection assembly 421.

[0043] The transition connection assembly 421 includes an inlet pipe 4211 and a positioning sleeve 4212. The positioning sleeve 4212 is fixedly connected to the outside of the inlet pipe 4211. One end of the inlet pipe 4211 is fixedly connected to an inlet round head 4213. An elastic skirt 4214 is fixedly connected to the outside of the connection point between the inlet round head 4213 and the inlet pipe 4211.

[0044] The fixing component 422 includes a fixing tube 4221 and a fixing ring 4222. The fixing tube 4221 includes a positioning section and a fixing section, which are fixedly connected. The fixing ring 4222 is fixedly connected to the outside of the fixing section at one end away from the fixing section. The fixing section has spiral grooves 4223 on its outside.

[0045] Furthermore, the main pipe 1 is connected to several sets of branch pipes 2 via valves.

[0046] Specifically, after connecting the spray assembly 4 through the branch pipe 2, water from the drip irrigation system can enter the spray assembly 4 and spray the cotton field through it. Several sets of connectors 3 on the branch pipes 2 allow the spray assembly 4 to fully cover the cotton field during spraying. This eliminates the need to carry pesticides when spraying the cotton field, significantly reducing the workload of workers and increasing spraying efficiency.

[0047] It should be noted that a water pump is installed inside or outside the water tank. The water pump is used to deliver the medicine in the water tank into the main pipe 1. The drip irrigation system also includes a flow control system, which includes a controller. The controller is used to control the water pump to control the water flow and water pressure inside the main pipe 1 and the branch pipes 2. The controller also controls the opening and closing of the valves, thereby determining which group or multiple groups of branch pipes 2 have medicine passing through. The control of flow and the control of valve opening and closing are existing technologies and will not be described in detail here.

[0048] Furthermore, the pesticide solution enters the return pipe 5 after passing through branch pipe 2, and then returns to the water tank. The specific settings of the positions of several sets of connectors 3 on several sets of branch pipes 2 are determined according to the spray range of the spray assembly 4, that is, the spray range of the connectors 3 on the branch pipes 2 can completely cover the cotton field.

[0049] Furthermore, the positioning hole 32 has a rectangular cross-section, and the shorter side of the rectangle is arc-shaped. The inner walls of both long sides of the positioning hole 32 are provided with the same number of arc-shaped protrusions 34, and the arc-shaped protrusions 34 on the inner walls of both sides of the positioning hole 32 are staggered.

[0050] Specifically, the main body of connector 3 is made of elastic material. When the spray assembly 4 is connected to connector 3, it will enter the positioning hole 32. Connector 3 will deform and the positioning hole 32 will become a circular groove. The sealing groove 33 can reduce the difficulty of starting the connection between spray assembly 4 and connector 3.

[0051] Furthermore, the end of the water inlet pipe 4211 facing away from the elastic skirt 4214 is provided with a thread, and the water inlet pipe 4211 is connected to the positioning sleeve 4212 through the thread. The length of the thread outside the water inlet pipe 4211 is equal to the length of the positioning sleeve 4212.

[0052] The position of the positioning sleeve 4212 outside the water inlet pipe 4211 can be adjusted by rotation.

[0053] In other embodiments, a handle may be installed on the outside of the positioning sleeve 4212 to improve the ease of rotation of the positioning sleeve 4212.

[0054] Furthermore, the elastic skirt 4214 is trumpet-shaped, and the smaller outer diameter end of the elastic skirt 4214 is fixedly connected to the outside of the water inlet pipe 4211, while the other end is fixedly connected to the inner wall of the positioning section of the fixed pipe 4221 that is away from the fixed section.

[0055] Specifically, after the water inlet head 4213 enters the branch pipe 2, the connection point between the water inlet head 4213 and the water inlet pipe 4211 will be blocked by the elastic skirt 4214, thereby effectively preventing the medicine from entering the connection gap between the fixing mechanism 42 and the sprayer 41.

[0056] Please see Figure 5-7 The inner wall of one end of the fixed section and the positioning section is fixedly connected to the outside of the water inlet pipe 4211. Both the fixed section and the positioning section are made of elastic material, and the positioning section is softer than the fixed section.

[0057] Furthermore, after the fixed section of the fixed tube 4221 is elongated, a spiral groove will be formed, and the position of the spiral groove will match the position of several sets of arc-shaped protrusions 34 on the inner wall of the positioning round hole 32.

[0058] Specifically, when connector 3 is connected to spray assembly 4, the positioning section is compressed, and the end of the positioning section away from the fixed section abuts against the limiting ring 35. At the same time, the fixed section is stretched, and the spiral groove formed by the fixing tube 4221 on the fixed section is blocked by the arc protrusion 34 to prevent the fixed section from shrinking. It also allows spray assembly 4 to contact and fix with connector 3. At this time, the outer diameter of the positioning section increases, and the diameter of the fixed section will be smaller than the outer diameter of the positioning section. Since both the fixing mechanism 42 and connector 3 are made of elastic material, the fixing mechanism 42 and the inner wall of the positioning hole 32 will contact and seal. The structure of the positioning hole 32 and the spiral groove will further enhance the sealing performance of the fixing mechanism 42 and the positioning hole 32.

[0059] Furthermore, when separating the connector 3 from the spray assembly 4, rotating the positioning sleeve 4212 to squeeze the fixing ring 4222 will cause the fixing section to shrink, and the spiral groove will shrink into a spiral groove 4223. Then the spray assembly 4 can be pulled out. During the process of pulling out the spray assembly 4, one end of the positioning hole 32 with the limiting ring 35 will close first, initially sealing the connection point between the branch pipe 2 and the connector 3. Subsequently, the staggered arc-shaped protrusions 34 on the inner wall of the positioning hole 32 will seal the inside of the positioning hole 32.

[0060] Please see Figure 11 The diameter of the inlet round head 4213 is the same as the inner diameter of the branch pipe 2. The inlet round head 4213 has a connecting port on its outside, and the diameter of the connecting port is smaller than the diameter of the inlet round head 4213.

[0061] Specifically, the medicine enters the fixed mechanism 42 through the connecting port inside the branch pipe 2, and then enters the sprayer 41.

[0062] Please participate Figure 3The sprayer 41 includes an extension tube 411, a nozzle 412, and a rotating connecting rod 414. The extension tube 411 is fixedly connected to the water inlet of the nozzle 412. The rotating connecting rod 414 is fixedly connected to one side of the nozzle 412 via a connecting block 413. The two ends of the rotating connecting rod 414 are rotatably connected to an adjusting rod 415 and a hand handle 416, respectively. Both the adjusting rod 415 and the hand handle 416 pass through the rotating connecting rod 414. The hand handle 416 is positioned between the nozzle 412 and the adjusting rod 415.

[0063] Specifically, after the pesticide enters the sprayer 41, it is sprayed out through the nozzle on the connecting block 413. Personnel can adjust the direction and position of the spray from the nozzle 412 by holding the handle 416, and adjust the spray direction by swinging the adjusting rod 415. This eliminates the need for personnel to continuously adjust the position using the handle 416, effectively reducing the workload of workers. Furthermore, using the handle 416 and adjusting rod 415 increases the distance between the worker and the nozzle 412, preventing the inhalation of pesticides.

[0064] In other embodiments, the handheld rod 416 can be a telescopic rod with adjustable length. When in use, the handheld rod 416 can be inserted into the cotton field, and the spray direction of the nozzle 412 can be adjusted by swinging the adjusting rod 415, which can further reduce the labor intensity of personnel.

[0065] This embodiment also provides a method for using a cotton field sprayer based on drip irrigation technology. Using the aforementioned cotton field sprayer based on drip irrigation technology, the method includes adding pesticide solution to a water tank, pumping water into the main pipe 1 using a pressure pump, inserting the fixing mechanism 42 into the positioning hole 32, at which point one end of the fixing component 422 on the outside of the transition connection assembly 421 will expand the positioning hole 32, causing deformation of the positioning hole 32. The fixing component 422 is blocked by the limiting ring 35 inside the positioning hole 32, the positioning section undergoes compression deformation, and the fixing section undergoes tensile deformation. The water inlet head 4213 enters the branch pipe 2. The spiral groove 4223 on the fixing section forms a spiral groove after stretching. The arc-shaped protrusion 34 on the inner wall of the circular hole 32 will be inserted into the spiral groove to fix the fixed section. By rotating the positioning sleeve 4212, the fixing ring 4222 is pressed against, so that the spraying assembly 4 is connected to the inside of the branch pipe 2. The valve between the main pipe 1 and the branch pipe 2 is opened to allow the medicine to enter the inside of the branch pipe 2. The medicine enters the fixed mechanism 42 through the connecting port inside the branch pipe 2, and then enters the nozzle 412 through the extension pipe 411. The cotton plants are sprayed by holding the hand handle 416. The spraying range of the nozzle 412 is adjusted by adjusting the rod 415 with the hand handle 416 as the axis. The area in the cotton field with the connector 3 as the base point and the spraying distance of the sprayer as the radius is sprayed.

[0066] In summary, the present invention provides a cotton field sprayer and its usage method based on drip irrigation technology. By fixing a connector 3 on the branch pipe 2 and connecting the spraying assembly 4 through the connector 3, the pesticide can be delivered inside the cotton field based on the drip irrigation system and then sprayed onto the cotton plants through the spraying assembly 4. This can effectively reduce the labor intensity of cotton field spraying and reduce the cost of cotton field spraying to a certain extent.

[0067] Secondly, by setting up a connector 3 and a spray assembly 4, wherein the connector 3 has a positioning hole 32, and an arc-shaped protrusion 34 and a limiting ring 35 are provided inside the positioning hole 32, and both the positioning section and the fixing section of the fixing mechanism 42 are made of elastic material, when the connector 3 is connected to the spray assembly 4, the positioning section is compressed and the fixing section is stretched. At the same time, the spiral groove formed by the stretching of the fixing tube 4221 on the fixing section is locked by the arc-shaped protrusion 34 to prevent the fixing section from shrinking, ensuring that the connector 3 and the spray assembly 4 are firmly connected. At this time, the positioning section is compressed. As the diameter increases, the diameter of the fixed section will be smaller than the outer diameter of the positioning section. Since both the fixing mechanism 42 and the connector 3 are made of elastic materials, the fixing mechanism 42 and the inner wall of the positioning hole 32 will come into contact and seal. Furthermore, the structure of the positioning hole 32 and the spiral groove will further enhance the sealing performance of the fixing mechanism 42 and the positioning hole 32. Thus, a stable and sealed connection between the connector 3 and the spray assembly 4 can be achieved through simple insertion. Moreover, by rotating the fixing tube 4221, the fixing ring 4222 can be squeezed to shrink the fixing section, thereby facilitating the separation of the connector 3 and the spray assembly 4.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cotton field sprayer based on drip irrigation technology, comprising a drip irrigation system, characterized in that: The drip irrigation system includes a main pipe (1), branch pipes (2), return pipes (5) and a water tank. The main pipe (1) and the return pipe (5) are connected by several sets of branch pipes (2). Several sets of connectors (3) are provided on the outside of the branch pipes (2). A spray assembly (4) is fixedly connected to one end of the connector (3). The main pipe (1) is connected to the water outlet of the water tank, and the return pipe (5) is connected to the water inlet of the water tank. The connector (3) includes a connecting tube (31), one end of which is provided with a positioning round hole (32), and the outside of the connecting tube (31) is provided with a sealing groove (33). Several sets of arc-shaped protrusions (34) are fixedly connected to the upper part of the inside of the positioning round hole (32), and a limit ring (35) is fixedly connected to the end of the positioning round hole (32) away from the sealing groove (33). The spray assembly (4) includes a sprayer (41) and a fixing mechanism (42). The sprayer (41) is fixedly connected to the fixing mechanism (42). The fixing mechanism (42) includes a transition connection assembly (421) and a fixing assembly (422). The fixing assembly (422) is fixedly connected to the outside of one end of the transition connection assembly (421). The transition connection assembly (421) includes an inlet pipe (4211) and a positioning sleeve (4212). The positioning sleeve (4212) is fixedly connected to the outside of the inlet pipe (4211). One end of the inlet pipe (4211) is fixedly connected to an inlet round head (4213). An elastic skirt (4214) is fixedly connected to the outside of the connection point between the inlet round head (4213) and the inlet pipe (4211). The fixing component (422) includes a fixing tube (4221) and a fixing ring (4222). The fixing tube (4221) includes a positioning section and a fixing section, which are fixedly connected. The fixing ring (4222) is fixedly connected to the outside of the fixing section at one end away from the fixing section. The fixing section is provided with spiral grooves (4223).

2. A cotton field sprayer based on drip irrigation technology according to claim 1, characterized in that: The main pipe (1) is connected to several sets of branch pipes (2) via valves.

3. A cotton field sprayer based on drip irrigation technology according to claim 1, characterized in that: The positioning hole (32) has a rectangular cross-section, and the short side of the rectangle is arc-shaped. The inner walls of the two long sides of the positioning hole (32) are provided with the same number of arc-shaped protrusions (34), and the arc-shaped protrusions (34) on the inner walls of the two sides of the positioning hole (32) are staggered.

4. A cotton field sprayer based on drip irrigation technology according to claim 1, characterized in that: The water inlet pipe (4211) has a thread on the outside of the end opposite to the elastic skirt (4214). The water inlet pipe (4211) is connected to the positioning sleeve (4212) through the thread. The length of the thread outside the water inlet pipe (4211) is equal to the length of the positioning sleeve (4212).

5. A cotton field sprayer based on drip irrigation technology according to claim 1, characterized in that: The elastic skirt (4214) is trumpet-shaped, and the smaller outer diameter end of the elastic skirt (4214) is fixedly connected to the outside of the water inlet pipe (4211), while the other end is fixedly connected to the inner wall of the positioning section of the fixed pipe (4221) away from the fixed section.

6. A cotton field sprayer based on drip irrigation technology according to claim 1, characterized in that: The inner wall of one end of the fixed section and the positioning section is fixedly connected to the outside of the water inlet pipe (4211). Both the fixed section and the positioning section are made of elastic material, and the positioning section is softer than the fixed section.

7. A cotton field sprayer based on drip irrigation technology according to claim 3, characterized in that: The fixed tube (4221) will form a spiral groove after the fixed section is stretched. The position of the spiral groove is adapted to the position of several sets of arc-shaped protrusions (34) on the inner wall of the positioning round hole (32).

8. A cotton field sprayer based on drip irrigation technology according to claim 1, characterized in that: The diameter of the inlet round head (4213) is the same as the inner diameter of the branch pipe (2). The inlet round head (4213) has a connecting port on its outside, and the diameter of the connecting port is smaller than the diameter of the inlet round head (4213).

9. A cotton field sprayer based on drip irrigation technology according to claim 1, characterized in that: The sprayer (41) includes an extension tube (411), a nozzle (412), and a rotating connecting rod (414). The extension tube (411) is fixedly connected to the water inlet of the nozzle (412). The rotating connecting rod (414) is fixedly connected to one side of the nozzle (412) via a connecting block (413). The two ends of the rotating connecting rod (414) are rotatably connected to an adjusting rod (415) and a handheld rod (416), respectively. The adjusting rod (415) and the handheld rod (416) both pass through the rotating connecting rod (414). The handheld rod (416) is positioned between the nozzle (412) and the adjusting rod (415).

10. A method for using a cotton field sprayer based on drip irrigation technology, characterized in that: The cotton field sprayer based on drip irrigation technology as described in claim 9 includes adding pesticide to a water tank, sending water into the main pipe (1) by a pressurized pump, inserting a fixing mechanism (42) into the positioning hole (32), at which point one end of the fixing component (422) on the outside of the transition connection component (421) will open the positioning hole (32), causing the positioning hole (32) to deform. The fixing component (422) is blocked by a limiting ring (35) inside the positioning hole (32), the positioning section undergoes compression deformation, the fixing section undergoes tensile deformation, the water inlet head (4213) enters the branch pipe (2), and the spiral groove (4223) on the fixing section forms a spiral groove after stretching. The arc-shaped protrusion on the inner wall of the positioning hole (32) ( 34) It will be inserted into the spiral groove to fix the fixed section. By rotating the positioning sleeve (4212), the fixing ring (4222) is pressed against, so that the spray assembly (4) is connected to the inside of the branch pipe (2). Open the valve of the main pipe (1) and the branch pipe (2) to let the medicine enter the inside of the branch pipe (2). The medicine enters the fixed mechanism (42) through the connecting port inside the branch pipe (2), and then enters the nozzle (412) through the extension pipe (411). Spray the cotton plants with the hand holding rod (416). Adjust the spray range of the nozzle (412) with the hand holding rod (416) as the axis by adjusting the rod (415). Spray the area in the cotton field with the connector (3) as the base point and the spray distance of the sprayer as the radius.

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