A pesticide spraying device with multi-angle spraying function for planting white chrysanthemum

Abstract

The present application relates to the technical field of pesticide spraying device, and disclose a pesticide spraying device with multi-angle spraying function for planting white chrysanthemum, which comprises a slide rail, the back of the slide rail is fixedly connected with a transmission mechanism with one end extending to the front of the slide rail, the outer side of the slide rail is slidably connected with a translation mechanism in transmission connection with the transmission mechanism, the bottom of the translation mechanism is provided with a spraying mechanism, and the same synchronous mechanism is transmission connected between the spraying mechanism and the transmission mechanism; the transmission mechanism comprises a worm, and the worm is rotatably connected in the inside of the slide rail. The pesticide spraying device with multi-angle spraying function for planting white chrysanthemum has the advantages of high safety and good spraying effect, solves the problem that the white chrysanthemum plant is dense, the large equipment cannot comprehensively spray pesticide, the artificial spraying is difficult to walk between the white chrysanthemum plants, and the staff's legs are easy to be contaminated by pesticide and harmful to health.

Description

Technical Field

[0001] This invention relates to the field of pesticide spraying devices, specifically a pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function. Background Technology

[0002] Pesticides refer to chemically synthesized substances or mixtures of substances, or their preparations, used to prevent and control diseases, insects, weeds, rodents, and other harmful organisms that threaten agriculture and forestry, as well as to purposefully regulate the growth of plants and insects. They are widely used in agricultural, forestry, and animal husbandry production, environmental and household sanitation pest control and disease prevention, and industrial product mildew and insect prevention.

[0003] A pesticide spraying device is a device that sprays water-soluble pesticides onto the surface of plants. Common spraying methods include backpack spraying, pesticide spraying trucks, and drone spraying.

[0004] Existing large-scale pesticide spraying equipment mostly sprays downwards from above, with a relatively fixed spraying angle and a long spraying distance, making it susceptible to wind effects and resulting in uneven spraying. Drone spraying is also affected by the wind force of the drone's rotor, making it impossible to maintain a consistent pesticide diffusion. Only manual spraying with a sprayer on one's back allows for multi-angle spraying and targeted application. However, in chrysanthemum plantations, the dense chrysanthemum plants and lush foliage make it difficult for personnel to walk around, and manual spraying inevitably results in pesticide residue on the worker's legs, which is harmful to health if exposed to such an environment for a long time. Using large-scale spraying equipment or drones to spray pesticides is also difficult to achieve comprehensive coverage of the dense chrysanthemum plants. Therefore, a pesticide spraying device for chrysanthemum cultivation with multi-angle spraying capability is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function. It has the advantages of high safety and good spraying effect, and solves the problems of dense Fubai chrysanthemum plants, incomplete pesticide spraying by large equipment, difficulty for manual spraying to walk among Fubai chrysanthemum plants, and easy contact of workers' legs with pesticides, which is harmful to their health.

[0007] (II) Technical Solution

[0008] The technical solution of the present invention to solve the above technical problems is as follows: A pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function, including a slide rail, a transmission mechanism extending to the front of the slide rail is fixedly connected to the back of the slide rail, a translation mechanism connected to the transmission mechanism is slidably connected to the outside of the slide rail, a spraying mechanism is provided at the bottom of the translation mechanism, and the same synchronization mechanism is connected between the spraying mechanism and the transmission mechanism.

[0009] The transmission mechanism includes a worm gear, which is rotatably connected inside the slide rail;

[0010] The translation mechanism includes a transmission block, which is slidably connected to the inside of the slide rail and drivenly connected to the outside of the worm gear. A base plate is fixedly connected to the bottom of the transmission block, and fixed plates are fixedly connected to both the left and right sides of the base plate. A hanging wheel that is rotatably connected to the inside of the slide rail is rotatably connected to the opposite side of the two fixed plates.

[0011] The spraying mechanism includes an outer pipe and an inner pipe, which are rotatably connected. The top of the inner pipe is fixedly connected to the bottom of the base plate. A water guide hole communicating with the inner pipe is opened inside the base plate. A spraying pipe is connected to the bottom of the outer pipe.

[0012] The synchronization mechanism includes a first gear, which is fixedly connected to the outer side of the outer tube. A second gear meshes with the outer side of the first gear. A transmission rod is fixedly connected to the top of the second gear. A worm wheel that meshes with the outer side of the worm is fixedly connected to the top of the transmission rod.

[0013] The beneficial effects of this invention are as follows: A sliding rail is installed on the outside of the greenhouse frame. During use, the transmission mechanism drives the translation mechanism to move, thereby driving the spraying mechanism to move. This allows the spraying mechanism to spray pesticides onto the Fubai chrysanthemums planted in the greenhouse from top to bottom. During the translation process, the synchronization mechanism drives the spraying mechanism to rotate, enabling multi-angle coverage spraying. During the spraying process, the staggered arrangement of the spray heads and the thrust generated by the spraying cause the sub-tubes to rotate, thereby causing the sub-tubes to drive the spray heads to rotate. This, combined with the revolution of the spraying pipes, allows for multi-angle spraying of the plants, enabling pesticide spraying on the plant surface without the need for manual application of pesticides.

[0014] This pesticide spraying device for planting Fubai chrysanthemum, which features multi-angle spraying, has the advantages of high safety and good spraying effect.

[0015] Based on the above technical solution, the present invention can be further improved as follows.

[0016] Furthermore, the slide rail is I-shaped, and the bottom of the slide rail has a groove that matches the transmission block. The top of the slide rail has an installation groove that matches the keel of the external planting greenhouse. The keel and the installation groove are fixedly connected by pins. The slide rail is formed by splicing multiple sections, and limit plates are fixedly connected to both the front and rear sides of the slide rail.

[0017] The advantage of adopting the above-mentioned further solution is that the limiting plate can prevent the hanging wheel from falling off the slide rail during movement.

[0018] Furthermore, the transmission mechanism also includes a third gear, which is fixedly connected to the back of the worm and located on the back of the rear limiting plate. A fourth gear meshes with the outer side of the third gear. A first protective cover is provided on the outer side of the third gear and the fourth gear and is fixedly connected to the back of the rear limiting plate. A motor that is drivenly connected to the back of the fourth gear is fixedly connected to the back of the first protective cover.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the first protective cover can protect the fourth gear and the third gear, and at the same time improve safety.

[0020] Furthermore, the spraying mechanism also includes a drug inlet mechanism and sub-tubes. There are multiple sub-tubes, which are distributed horizontally at equal intervals. The sub-tubes are connected to the bottom of the spray pipe and are rotatably connected to the spray pipe. The sub-tubes are arc-shaped tubes, and the bottom of the sub-tubes is connected to two spray heads that are staggered front and back.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the staggered spray heads can drive the sub-tube to rotate when spraying the medicine.

[0022] Furthermore, the drug feeding mechanism includes a fixing head, which is fixedly connected to the back of the base plate and communicates with the water guide hole. A detachable connector is threaded to the outer side of the fixing head, and a drug tube is connected to the back of the connector. The drug tube passes through the rear limiting plate, and a guide wheel located below the drug tube is rotatably connected inside the rear limiting plate. The inner side of the guide wheel is arc-shaped and adapted to the drug tube.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the guide wheel can suspend and guide the medicine pipe on one side of the greenhouse, avoiding dragging and damaging the Fubai chrysanthemum in the plantation.

[0024] Furthermore, a second protective shell is fixedly connected to the bottom of the base plate on the outer side of the first gear and the second gear.

[0025] The beneficial effect of adopting the above-mentioned further solution is that the second protective shell can protect the first gear and the second gear, and at the same time improve safety.

[0026] Furthermore, the outside of the pesticide tube is also equipped with a winding machine for winding up excess pesticide tube material. The pesticide tube is connected to an external water pump and is used to circulate the required pesticides.

[0027] The beneficial effect of adopting the above-mentioned further solution is that the winding machine can wind up the excess pesticide hose, preventing the pesticide hose from dragging on the plantation ground and damaging the Fubai chrysanthemum plants during the pull-back.

[0028] Furthermore, the worm is a trapezoidal toothed screw, and the worm is a multi-segment spliced ​​type. Adjacent spliced ​​worms are provided with mutually compatible tenons and grooves. Adjacent spliced ​​worms are fixedly connected by fastening screws, and the fastening screws are located in the tooth grooves of the worm. The outer side of the worm is provided with a countersunk hole that matches the fastening screw. After the fastening screw is tightened, it sinks into the countersunk hole.

[0029] The advantages of adopting the above-mentioned further solution are that the trapezoidal tooth transmission has high efficiency and stable transmission, and there is a flat surface between two adjacent teeth, which makes it easy to open countersunk holes and use fastening screws.

[0030] Furthermore, the sub-pipe includes a connecting pipe that communicates with the spray pipe. The connecting pipe is T-shaped and inserted into the interior of the spray pipe. Multiple ball bearings are provided between the bottom of the connecting pipe and the inner wall of the spray pipe. A C-shaped sealing gasket is provided at the top of the connecting pipe. The sealing gasket is fastened to the top of the connecting pipe and fills the inner gap between the connecting pipe and the spray pipe.

[0031] The beneficial effects of adopting the above-mentioned further solutions are that the sealing gasket can improve the sealing performance, and the ball bearings can also transform sliding friction into rolling friction, reduce friction, and improve the service life of the sub-tube. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a side view of the structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the synchronization mechanism structure of the present invention;

[0035] Figure 4 This is an enlarged view of the structure at point A of the present invention;

[0036] Figure 5 This is a side view of the connection structure between the spray head and the sub-tube of the present invention.

[0037] In the diagram: 1. Slide rail; 101. Limiting plate; 2. Transmission mechanism; 201. Worm gear; 202. Third gear; 203. Fourth gear; 204. First protective cover; 205. Motor; 3. Translation mechanism; 301. Transmission block; 302. Base plate; 303. Fixing plate; 304. Hanging wheel; 4. Spraying mechanism; 401. Outer pipe; 402. Inner pipe; 403. Water guide hole; 404. Spray pipe; 405. Sub-pipe; 4051. Connecting pipe; 4052. Ball bearing; 4053. Sealing gasket; 406. Spray head; 5. Synchronization mechanism; 501. First gear; 502. Second gear; 503. Transmission rod; 504. Worm gear; 505. Second protective shell; 6. Mounting groove; 7. Keel; 8. Pin; 9. Drug feeding mechanism; 901. Fixing head; 902. Connecting head; 903. Drug pipe; 904. Guide wheel; 10. Fastening screw. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the embodiments, by Figure 1-5 The present invention provides a pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function. The invention includes a slide rail 1, a transmission mechanism 2 that extends to the front of the slide rail 1 is fixedly connected to the back of the slide rail 1, a translation mechanism 3 that is slidably connected to the outside of the slide rail 1 and is connected to the transmission mechanism 2, a spraying mechanism 4 is provided at the bottom of the translation mechanism 3, and the same synchronization mechanism 5 is connected to the spraying mechanism 4 and the transmission mechanism 2.

[0040] The transmission mechanism 2 includes a worm gear 201, which is rotatably connected inside the slide rail 1;

[0041] The translation mechanism 3 includes a transmission block 301, which is slidably connected to the inside of the slide rail 1 and is drivenly connected to the outside of the worm gear 201. A base plate 302 is fixedly connected to the bottom of the transmission block 301, and fixed plates 303 are fixedly connected to both the left and right sides of the base plate 302. A hanging wheel 304 that is rotatably connected to the inside of the slide rail 1 is rotatably connected to the opposite side of the two fixed plates 303.

[0042] The spraying mechanism 4 includes an outer pipe 401 and an inner pipe 402, which are rotatably connected. The top of the inner pipe 402 is fixedly connected to the bottom of the base plate 302. A water guide hole 403 communicating with the inner pipe 402 is opened inside the base plate 302. A spray pipe 404 is connected to the bottom of the outer pipe 401.

[0043] The synchronization mechanism 5 includes a first gear 501, which is fixedly connected to the outside of the outer tube 401. A second gear 502 meshes with the outside of the first gear 501. A transmission rod 503 is fixedly connected to the top of the second gear 502. A worm wheel 504 that meshes with the outside of the worm 201 is fixedly connected to the top of the transmission rod 503.

[0044] The slide rail 1 is set in an I-shape, and the bottom of the slide rail 1 is provided with a groove that matches the transmission block 301. The top of the slide rail 1 is provided with an installation groove 6, which matches the keel 7 of the external planting greenhouse. The keel 7 and the installation groove 6 are fixedly connected by a pin 8. The slide rail 1 is formed by splicing multiple sections, and the front and rear sides of the slide rail 1 are fixedly connected with limit plates 101.

[0045] The limiting plate 101 can prevent the hanging wheel 304 from disengaging from the slide rail 1 during movement;

[0046] The transmission mechanism 2 also includes a third gear 202, which is fixedly connected to the back of the worm 201 and located on the back of the rear limiting plate 101. A fourth gear 203 meshes with the outer side of the third gear 202. A first protective cover 204 is provided on the outer side of the third gear 202 and the fourth gear 203 and is fixedly connected to the back of the rear limiting plate 101. A motor 205 is fixedly connected to the back of the first protective cover 204 and is drivenly connected to the back of the fourth gear 203.

[0047] The first protective cover 204 can protect the fourth gear 203 and the third gear 202, and also improve safety.

[0048] The spraying mechanism 4 also includes a drug feeding mechanism 9 and a sub-tube 405. There are multiple sub-tubes 405, which are distributed horizontally at equal intervals. The sub-tubes 405 are connected to the bottom of the spray pipe 404 and are rotatably connected to the spray pipe 404. The sub-tubes 405 are arc-shaped tubes. The bottom of the sub-tubes 405 is connected to two spray heads 406 that are distributed in a staggered manner.

[0049] The staggered spray heads 406 can drive the sub-tubes 405 to rotate when spraying the medicine;

[0050] The drug feeding mechanism 9 includes a fixed head 901, which is fixedly connected to the back of the base plate 302. The fixed head 901 is connected to the water guide hole 403. A detachable connector 902 is threadedly connected to the outside of the fixed head 901. A drug tube 903 is connected to the back of the connector 902. The drug tube 903 passes through the rear limiting plate 101. A guide wheel 904 located below the drug tube 903 is rotatably connected inside the rear limiting plate 101. The inner side of the guide wheel 904 is arc-shaped and adapted to the drug tube 903.

[0051] The guide wheel 904 can suspend and guide the pesticide pipe 903 on one side of the greenhouse, preventing it from dragging and damaging the Fubai chrysanthemum in the plantation;

[0052] The outer side of the first gear 501 and the second gear 502 is provided with a second protective shell 505 that is fixedly connected to the bottom of the base plate 302;

[0053] The second protective shell 505 can protect the first gear 501 and the second gear 502, and also improve safety.

[0054] The outside of the pesticide hose 903 is also equipped with a winding machine for winding up the excess amount of pesticide hose 903. The pesticide hose 903 is connected to an external water pump and is used to distribute the required pesticides.

[0055] The rewinder can rewind excess pesticide hose 903, preventing the pesticide hose 903 from dragging on the plantation ground and damaging the Fubai chrysanthemum plants during the pull-back trip;

[0056] The worm 201 is a trapezoidal toothed screw. The worm 201 is a multi-segment splicing type, and there are mutually matching tenons and grooves between two adjacent spliced ​​worms 201. The two adjacent spliced ​​worms 201 are fixedly connected by fastening screws 10, and the fastening screws 10 are located in the tooth groove of the worm 201. The outer side of the worm 201 has a countersunk hole that matches the fastening screws 10. After the fastening screws 10 are tightened, they sink into the countersunk hole.

[0057] Trapezoidal gear transmission has high efficiency and stable transmission. There is a flat surface between two adjacent teeth, which makes it easy to open countersunk holes and use fastening screws 10.

[0058] The sub-pipe 405 includes a connecting pipe 4051, which is connected to the spray pipe 404. The connecting pipe 4051 is T-shaped and inserted into the interior of the spray pipe 404. Multiple balls 4052 are provided between the bottom of the connecting pipe 4051 and the bottom wall of the inner cavity of the spray pipe 404. A C-shaped sealing gasket 4053 is provided at the top of the connecting pipe 4051. The sealing gasket 4053 is fastened to the top of the connecting pipe 4051 and fills the inner gap between the connecting pipe 4051 and the spray pipe 404.

[0059] The sealing gasket 4053 can improve the sealing performance, while the ball 4052 can also convert sliding friction into rolling friction, reduce friction, and improve the service life of the sub-tube 405.

[0060] Working principle:

[0061] Step 1: Fix the slide rail 1 to the outside of the existing greenhouse frame 7 using the pin 8. Before use, first introduce the prepared pesticide into the pesticide pipe 903 through the water pump, and then introduce it into the water guide hole 403 through the pesticide pipe 903. Then, it is introduced into the sub-pipe 405 through the inner pipe 402, outer pipe 401, and spray pipe 404 in sequence. Finally, the pesticide is atomized and sprayed out through the spray head 406.

[0062] Step 2: When spraying pesticides, start motor 205. Motor 205 drives the fourth gear 203 to rotate. Through the gear transmission between the fourth gear 203 and the third gear 202, the worm gear 201 is driven to rotate. In turn, through the gear transmission between the worm gear 201 and the transmission block 301, the base plate 302 is moved. During the movement, the base plate 302 pulls the pesticide pipe 903 to keep the pesticide connected. At the same time, the guide wheel 904 suspends the pesticide pipe 903 to prevent it from dragging on the ground. Meanwhile, the two hanging wheels 304 exert a pulling force on the base plate 302 through the fixing plate 303 to prevent it from falling due to excessive force due to distance. During the horizontal movement, it can cover the entire greenhouse from top to bottom to achieve the effect of spraying pesticides.

[0063] Step 3: During the translation process, the worm gear 201 drives the worm wheel 504 to rotate, which in turn drives the second gear 502 to rotate through the transmission rod 503. Through the gear transmission between the second gear 502 and the first gear 501, the outer tube 401, which rotates outside the inner tube 402, is driven to rotate. This causes the outer tube 401 to drive the spray pipe 404 to revolve. When the spray head 406 sprays water mist, the thrust generated by the spray causes the sub-tube 405 to rotate, so that the sprayed pesticide can be sprayed in a rotating state. The water droplets of the pesticide can fall in a rotating state, covering the plant and forming a better multi-angle spraying effect.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0065] 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 pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function, comprising a slide rail (1), characterized in that: A transmission mechanism (2) is fixedly connected to the back of the slide rail (1) with one end extending to the front of the slide rail (1). A translation mechanism (3) is slidably connected to the outside of the slide rail (1) and is connected to the transmission mechanism (2). A spraying mechanism (4) is provided at the bottom of the translation mechanism (3). The same synchronization mechanism (5) is connected between the spraying mechanism (4) and the transmission mechanism (2). The transmission mechanism (2) includes a worm gear (201), which is rotatably connected inside the slide rail (1); The translation mechanism (3) includes a transmission block (301), which is slidably connected to the inside of the slide rail (1) and is drivenly connected to the outside of the worm gear (201). A base plate (302) is fixedly connected to the bottom of the transmission block (301), and a fixing plate (303) is fixedly connected to both the left and right sides of the base plate (302). A hanging wheel (304) that is rotatably connected to the inside of the slide rail (1) is rotatably connected to the opposite side of the two fixing plates (303). The spraying mechanism (4) includes an outer pipe (401) and an inner pipe (402), which are rotatably connected. The top of the inner pipe (402) is fixedly connected to the bottom of the base plate (302). A water guide hole (403) communicating with the inner pipe (402) is opened inside the base plate (302). A spray pipe (404) is connected to the bottom of the outer pipe (401). The synchronization mechanism (5) includes a first gear (501), which is fixedly connected to the outside of the outer tube (401). A second gear (502) meshes with the outside of the first gear (501). A transmission rod (503) is fixedly connected to the top of the second gear (502). A worm wheel (504) meshes with the outside of the worm (201) at the top of the transmission rod (503). The spraying mechanism (4) also includes a drug feeding mechanism (9) and a sub-tube (405); The drug feeding mechanism (9) includes a fixed head (901), which is fixedly connected to the back of the base plate (302). The fixed head (901) is connected to the water guide hole (403). A detachable connector (902) is threadedly connected to the outside of the fixed head (901). A drug tube (903) is connected to the back of the connector (902). The drug tube (903) passes through the rear limiting plate (101). A guide wheel (904) located below the drug tube (903) is rotatably connected inside the rear limiting plate (101). The inner side of the guide wheel (904) is arc-shaped and adapted to the drug tube (903). The outer sides of the first gear (501) and the second gear (502) are provided with a second protective shell (505) that is fixedly connected to the bottom of the base plate (302).

2. The pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function according to claim 1, characterized in that: The slide rail (1) is I-shaped, and the bottom of the slide rail (1) is provided with a groove that matches the transmission block (301). The top of the slide rail (1) is provided with an installation groove (6). The installation groove (6) matches the keel (7) of the external planting greenhouse. The keel (7) and the installation groove (6) are fixedly connected by a pin (8). The slide rail (1) is formed by splicing multiple sections. Limiting plates (101) are fixedly connected to both the front and rear sides of the slide rail (1).

3. The pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function according to claim 2, characterized in that: The transmission mechanism (2) further includes a third gear (202), which is fixedly connected to the back of the worm (201) and located on the back of the rear limiting plate (101). A fourth gear (203) meshes with the outer side of the third gear (202). A first protective cover (204) is provided on the outer side of the third gear (202) and the fourth gear (203) and is fixedly connected to the back of the rear limiting plate (101). A motor (205) is fixedly connected to the back of the first protective cover (204) and is drivenly connected to the back of the fourth gear (203).

4. The pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function according to claim 1, characterized in that: The number of sub-tubes (405) is multiple and they are distributed horizontally at equal intervals. The bottom of the sub-tube (405) is connected to the spray pipe (404). The sub-tube (405) is rotatably connected to the spray pipe (404). The sub-tube (405) is an arc-shaped tube. The bottom of the sub-tube (405) is connected to two spray heads (406) that are distributed in a staggered manner.

5. The pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function according to claim 1, characterized in that: The outside of the pesticide tube (903) is also provided with a winding machine for winding up the excess amount of pesticide tube (903). The pesticide tube (903) is connected to an external water pump and is used to circulate the required pesticides.

6. The pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function according to claim 1, characterized in that: The worm (201) is a trapezoidal toothed screw. The worm (201) is a multi-segment splicing type, and there are mutually compatible tenons and grooves between two adjacent spliced ​​worms (201). The two adjacent spliced ​​worms (201) are fixedly connected by fastening screws (10), and the fastening screws (10) are located in the tooth groove of the worm (201). The outer side of the worm (201) is provided with a countersunk hole that is compatible with the fastening screws (10). After the fastening screws (10) are tightened, they sink into the countersunk hole.

7. The pesticide spraying device for planting Fubai chrysanthemum with multi-angle spraying function according to claim 4, characterized in that: The sub-pipe (405) includes a connecting pipe (4051), which is connected to the spray pipe (404). The connecting pipe (4051) is T-shaped and inserted into the interior of the spray pipe (404). Multiple ball bearings (4052) are provided between the bottom of the connecting pipe (4051) and the inner wall of the spray pipe (404). A C-shaped sealing gasket (4053) is provided on the top of the connecting pipe (4051). The sealing gasket (4053) is fastened to the top of the connecting pipe (4051) and fills the inner gap between the connecting pipe (4051) and the spray pipe (404).

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