A small tomato seedling stage disease prevention and treatment spraying device

Abstract

The application provides a small tomato seedling disease prevention and treatment spraying device, and relates to the technical field of disease prevention and treatment, which comprises a spraying gun for spraying liquid medicine on the back of leaves, the spraying gun comprising a gun body and a medicine storage tank fixed on the gun body and used for containing the liquid medicine; a leakage prevention mechanism used for receiving residual liquid medicine dripping due to gravity during spraying, the leakage prevention mechanism comprising a leakage prevention cover and a connecting pipe used for connecting the leakage prevention cover with the output end of the spraying gun, one end of the connecting pipe penetrating through the leakage prevention cover, so that the spraying gun can spray the liquid medicine to the back of the leaves through the connecting pipe and the leakage prevention cover, and the leakage prevention cover can receive the liquid medicine dripping from the back of the leaves. The application has the effect of avoiding the pollution of the soil by the dripping liquid medicine and the harm to the root system of the seedlings.

Description

Technical Field

[0001] This application relates to the field of disease control technology, and in particular to a spraying device for controlling diseases in cherry tomato seedlings. Background Technology

[0002] Cherry tomatoes are both a vegetable and a fruit, with a delicious taste and rich nutrition. In addition to containing all the nutrients of a regular tomato, their vitamin content is higher than that of a regular tomato. The seedling stage is a critical period for cherry tomato plant growth. At this time, the seedlings are less resistant to adverse conditions and are more susceptible to diseases. Therefore, disease prevention and control should be carried out during the seedling stage.

[0003] When controlling specific diseases during the seedling stage, such as powdery mildew and gray mold, which often infect the underside of leaves, it is necessary to focus on covering them. At this time, the operator needs to adjust the spraying method and spray at an angle from the bottom of the plant upwards to ensure that the pesticide fully contacts the underside of the leaves. When the spraying angle is tilted upwards, the pesticide is prone to dripping downwards due to gravity, which will contaminate the soil and is detrimental to the seedling roots. Utility Model Content

[0004] In order to overcome the technical problems described in the prior art, this application provides a spraying device for the prevention and control of diseases in cherry tomato seedlings.

[0005] The spraying device for controlling diseases in cherry tomato seedlings provided in this application adopts the following technical solution:

[0006] A spraying device for controlling diseases in cherry tomato seedlings, including

[0007] A spray gun is used to spray pesticide solution onto the back of leaves. It includes a gun body and a storage tank fixed to the gun body for holding the pesticide solution.

[0008] The leak-proof mechanism is used to catch residual pesticide dripping due to gravity during spraying. It includes a leak-proof cover and a connecting pipe for connecting the leak-proof cover to the output end of the spray gun. The leak-proof cover is installed through one end of the connecting pipe, so that the spray gun can spray pesticide onto the back of the blades through the connecting pipe and the leak-proof cover. At the same time, the leak-proof cover can catch the pesticide dripping from the back of the blades.

[0009] Furthermore, one end of the connecting tube is provided with a first connecting mechanism for detachable connection with the output end of the spray gun, and the other end is provided with a second connecting mechanism for detachable connection with the leak-proof cover.

[0010] Furthermore, the first connecting mechanism includes an external threaded cylinder fixed to the output end of the spray gun and an internal threaded cap sleeved on the connecting pipe, wherein the internal threaded cap is threadedly connected to the external threaded cylinder.

[0011] Furthermore, the connecting pipe is L-shaped and rotatably connected to the internal threaded cover, which is provided with a limiting component to restrict the free rotation of the connecting pipe.

[0012] Furthermore, the limiting assembly includes a side plate fixed to the outer end wall of the internal threaded cover, a telescopic rod telescopically disposed between the side plate and the connecting pipe, and a compression spring sleeved on the telescopic rod. One end of the telescopic rod is fixedly connected to the side plate, and the other end points towards the connecting pipe. One end of the compression spring is connected to the side, and the other end is connected to the end of the telescopic rod away from the side plate. Under the drive of the compression spring, the telescopic rod elastically presses against the outer wall of the connecting pipe. Multiple limiting grooves for the ends of the telescopic rod to abut against are provided on the outer wall of the connecting pipe along its circumference.

[0013] Furthermore, the second connecting mechanism includes an outer sleeve fixedly fitted onto the end of the connecting pipe, an inner sleeve installed on the outer end wall of the leak-proof cover, and multiple snap-fit ​​components disposed between the inner sleeve and the outer sleeve. Both the inner sleeve and the leak-proof cover have through holes in the middle for the connecting pipe to pass through, and the outer sleeve is stably fitted onto the inner sleeve through the multiple snap-fit ​​components.

[0014] Furthermore, the inner sleeve plate has multiple sliding grooves on its side wall, and a relief groove communicating with the sliding groove is formed on the upper surface of the inner sleeve plate. The snap-fit ​​assembly includes a snap-fit ​​plate slidably disposed in the sliding groove, a paddle fixed on the snap-fit ​​plate, and a spring located in the sliding groove that pushes the snap-fit ​​plate to slide away from the center of the inner sleeve plate. The paddle is slidably disposed in the relief groove, and the top of the paddle extends out of the relief groove. The outer sleeve plate has an installation groove for accommodating the inner sleeve plate, and a snap-fit ​​hole for the snap-fit ​​plate to pass through is formed on the side wall of the installation groove.

[0015] Furthermore, the snap-fit ​​assembly is provided in two sets and is symmetrically arranged on both sides of the connecting pipe, with two sliding grooves distributed on both sides of the central axis of the inner sleeve plate along the radial direction of the inner sleeve plate.

[0016] Furthermore, the leak-proof cover is configured in the shape of a trumpet.

[0017] Furthermore, the bent portion of the connecting pipe is arc-shaped.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] By using a spring to drive the snap-fit ​​plate to slide along the groove, the inner sleeve plate is limited. Thus, during operation, the leak-proof cover on the top of the inner sleeve plate can catch the residual pesticide dripping due to gravity during spraying, preventing the pesticide from contaminating the soil and thus protecting the seedlings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the overall exploded structure in the embodiments of this application.

[0023] Figure 3 This is a schematic diagram of the structure of the leak-proof cover and the second connecting mechanism in the embodiments of this application.

[0024] Figure 4 This is a schematic diagram of the limiting component and the ball head in the embodiments of this application.

[0025] Reference numerals: 1. Spray gun; 11. Gun body; 12. Medicine tank; 2. Leak-proof mechanism; 21. Leak-proof cover; 22. Connecting pipe; 3. First connecting mechanism; 31. External threaded cylinder; 32. Internal threaded cover; 4. Second connecting mechanism; 41. Outer sleeve plate; 42. Inner sleeve plate; 43. Snap-fit ​​plate; 44. Paddle; 45. Spring; 46. Through hole; 47. Slide groove; 48. Relief groove; 49. Mounting groove; 5. Limiting component; 51. Side plate; 52. Telescopic rod; 53. Compression spring; 54. Limiting groove; 6. Snap-fit ​​hole; 7. Ball head. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0027] This application discloses a spraying device for controlling diseases in cherry tomato seedlings. (Refer to...) Figure 1 and Figure 2 A spraying device for controlling diseases in cherry tomato seedlings includes a spray gun 1 for spraying pesticide solution onto the back of leaves and a leak-proof mechanism 2 for collecting residual pesticide solution. The spray gun 1 includes a gun body 11 and a storage tank 12 fixed to the gun body 11 for holding the pesticide solution. The storage tank 12 is detachably installed at the bottom of the gun body 11. The leak-proof mechanism 2 includes a leak-proof cover 21 and a connecting pipe 22 for connecting the leak-proof cover 21 to the output end of the spray gun 1. Considering ease of use, the leak-proof cover 21 is shaped like a trumpet, and the connecting pipe 22 is L-shaped. A through hole 46 is provided in the middle of the leak-proof cover 21 for one end of the connecting pipe 22 to pass through. By pressing the handle on the gun body 11, the spray gun 1 can spray the pesticide solution in the storage tank 12 onto the back of the leaves through the connecting pipe 22 and the leak-proof cover 21. At the same time, the leak-proof cover 21 can collect the pesticide solution dripping from the back of the leaves.

[0028] For easy storage and organization of this device, refer to Figure 1 , Figure 2 and Figure 3 One end of the connecting pipe 22 is provided with a first connecting mechanism 3 for detachable connection to the output end of the spray gun 1, and the other end is provided with a second connecting mechanism 4 for detachable connection to the leak-proof cover 21. Regarding the first connecting mechanism 3, in this embodiment, the first connecting mechanism 3 includes an externally threaded cylinder 31 fixed to the output end of the spray gun 1 and an internally threaded cap 32 sleeved on the connecting pipe 22. By threading the internally threaded cap 32 onto the externally threaded cylinder 31, the liquid sprayed from the spray gun 1 can smoothly enter the connecting pipe 22 and exit from the leak-proof cover 21. To increase the spray distance of the spray gun 1, the bent portion of the connecting pipe 22 is arc-shaped, and a baffle is fixed inside the externally threaded cylinder 31. Multiple spray holes are perforated on the baffle, allowing the liquid sprayed through the spray holes to quickly pass through the connecting pipe 22 and exit from the leak-proof cover 21. In other embodiments, the first connecting mechanism 3 can be a quick-connect coupling, a quick-release flange, or a series of quick-release structures.

[0029] Because the leaves on the plant face different directions, and the connecting tube 22 is L-shaped, to ensure that the leak-proof cap 21 can still quickly cover the underside of the leaves when the spray gun 1 is held vertically, the connecting tube 22 is rotatably connected to the internal threaded cap 32. This allows the operator to rotate the connecting tube 22 as needed to adjust the orientation of the leak-proof cap 21. After adjusting the orientation of the leak-proof cap 21, to ensure that the leak-proof cap 21 remains stable at the current angle, the internal threaded cap 32 is equipped with a limiting component 5 to restrict the free rotation of the connecting tube 22. (Refer to...) Figure 1 , Figure 2 and Figure 4In this embodiment, four sets of limiting components 5 are provided and are evenly distributed along the axial direction of the connecting pipe 22. The limiting components 5 include a side plate 51 fixed on the outer end wall of the inner thread cover 32, a telescopic rod 52 telescopically disposed between the side plate 51 and the connecting pipe 22, and a compression spring 53 sleeved on the telescopic rod 52. One end of the telescopic rod 52 is fixedly connected to the side plate 51, and the other end points towards the connecting pipe 22. One end of the compression spring 53 is connected to the side, and the other end is connected to the end of the telescopic rod 52 away from the side plate 51. The telescopic rod 52 is elastically pressed against the outer wall of the connecting pipe 22 under the drive of the compression spring 53. To ensure the telescopic rod 52 stably restricts the free rotation of the connecting pipe 22, four limiting grooves 54 are provided circumferentially on the outer wall of the connecting pipe 22 for the ends of the telescopic rods 52 to abut against. Driven by the corresponding compression springs 53, the ends of the four telescopic rods 52 are tightly engaged in the corresponding limiting grooves 54, thus allowing the connecting pipe 22 to stably support the leak-proof cover 21 without external force. To facilitate rapid rotation of the connecting pipe 22, a ball head 7 is fixed to the end of the telescopic rod 52 away from the side plate 51. The end of the telescopic rod 52 abuts against the limiting groove 54 of the connecting pipe 22 through the ball head 7. This allows the telescopic rod 52 to quickly retract by overcoming the elastic force of the four compression springs 53 when rotating the connecting pipe 22, thereby rapidly rotating the connecting pipe 22 and adjusting the leak-proof cover 21 to the appropriate angle. In other embodiments, the limiting component 5 is configured as a rubber ring inserted between the connecting pipe 22 and the internal threaded cover 32, thereby increasing the friction between the connecting pipe 22 and the internal threaded cover 32 to restrict the free rotation of the connecting pipe 22.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The second connecting mechanism 4 includes an outer sleeve 41 fixedly sleeved on the end of the connecting tube 22 away from the inner threaded cap 32, an inner sleeve 42 installed on the outer end wall of the leak-proof cap 21, and a plurality of snap-fit ​​components disposed between the inner sleeve 42 and the outer sleeve 41. The outer sleeve 41 has an installation groove 49 for accommodating the inner sleeve 42 at the end away from the connecting tube 22. The inner sleeve 42 also has a through hole 46 in the middle for the connecting tube 22 to pass through. The inner sleeve 42 is stably installed in the installation groove 49 of the outer sleeve 41 by the plurality of snap-fit ​​components. At this time, the connecting tube 22 also passes through the inner sleeve 42 and the through hole 46 on the leak-proof cap 21 in sequence.

[0031] To facilitate the quick connection between the outer sleeve plate 41 and the inner sleeve plate 42 by operating the snap-fit ​​assembly, in this embodiment of the application, reference is made to... Figure 1 , Figure 2 and Figure 3Two sets of snap-fit ​​components are provided and symmetrically arranged on both sides of the connecting pipe 22. Two sliding grooves 47 are formed on the side wall of the inner sleeve plate 42, each corresponding to one of the two sets of snap-fit ​​components. The depth direction of the sliding grooves 47 is consistent with the radial direction of the inner sleeve plate 42, and the two sliding grooves 47 are distributed on both sides of the central axis of the inner sleeve plate 42 along the radial direction. A relief groove 48 communicating with the sliding grooves 47 is formed on the upper surface of the inner sleeve plate 42, and the length direction of the relief groove 48 is consistent with the depth direction of the sliding grooves 47. The snap-fit ​​assembly includes a snap-fit ​​plate 43 slidably disposed within a slide groove 47, a lever 44 fixed on the snap-fit ​​plate 43, and a spring 45 located within the slide groove 47 and pushing the snap-fit ​​plate 43 to slide away from the center of the inner sleeve plate 42. One end of the lever 44 away from the snap-fit ​​plate 43 passes through a relief groove 48 and extends above the relief groove 48. Simultaneously, the lever 44 can reciprocate within the relief groove 48 under the action of the snap-fit ​​plate 43. Two snap-fit ​​holes 6 are formed through the side wall of the mounting groove 49 on the outer sleeve plate 41, with each of the two snap-fit ​​holes 6 corresponding to one of the two snap-fit ​​plates 43.

[0032] When it is necessary to stably install the inner sleeve plate 42 on the outer sleeve plate 41, simply press the lever 44 simultaneously towards the middle of the inner sleeve plate 42, so that the two snap-fit ​​plates 43 compress the spring 45 and retract into the slide groove 47. Then, the connecting tube 22 is sequentially passed through the through holes 46 on the inner sleeve plate 42 and the leak-proof cover 21, and the inner sleeve plate 42 is moved until it is inserted into the mounting groove 49 of the outer sleeve plate 41. Rotate the inner sleeve plate 42 so that the snap-fit ​​hole 6 is aligned with the snap-fit ​​plate 43. Release the lever 44, and the two snap-fit ​​plates 43 are inserted into the corresponding snap-fit ​​holes 6 under the drive of the spring 45, thus completing the installation connection between the inner sleeve plate 42 and the outer sleeve plate 41.

[0033] In other embodiments, the snap-fit ​​assembly is configured as a locking bolt, the locking bolt threaded through the side wall of the mounting groove 49 and abutting against the side wall of the inner sleeve plate 42, and the inner sleeve plate 42 and the outer sleeve plate 41 are connected by friction between the locking bolt and the inner sleeve plate 42.

[0034] The implementation principle of the spray device for controlling diseases in cherry tomato seedlings according to this application embodiment is as follows: First, the inner threaded cap 32 is threaded onto the outer threaded cylinder 31, so that the connecting pipe 22 is connected to the spray gun 1. Then, the pry bar 44 is pressed towards the middle of the inner sleeve plate 42, so that the two snap-fit ​​plates 43 compress the spring 45 and are retracted into the slide groove 47. Next, the connecting pipe 22 is passed through the through holes 46 on the inner sleeve plate 42 and the leak-proof cap 21 in sequence, and the inner sleeve plate 42 is moved until it is inserted into the mounting groove 49 of the outer sleeve plate 41. The inner sleeve plate 42 is rotated so that the snap-fit ​​hole 6 is aligned with the snap-fit ​​plate 43. The pry bar 44 is released, and the two snap-fit ​​plates 43 are inserted into the corresponding snap-fit ​​holes 6 under the drive of the spring 45, thereby completing the installation and connection of the inner sleeve plate 42 and the outer sleeve plate 41.

[0035] After assembling the spraying device, hold the spray gun 11 by hand, then rotate the connecting tube 22 and adjust the leak-proof cover 21 to a suitable angle. At this time, the free rotation of the connecting tube 22 is restricted by the limiting component 5. Then press the handle on the gun body 11 so that the spray gun 1 can spray the liquid medicine in the storage tank 12 through the connecting tube 22 and the leak-proof cover 21 onto the back of the blade. At the same time, the leak-proof cover 21 can catch the liquid medicine dripping from the back of the blade.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spraying device for controlling diseases in cherry tomato seedlings, characterized in that, include A spray gun is used to spray pesticide solution onto the back of leaves. It includes a gun body and a storage tank fixed to the gun body for holding the pesticide solution. The leak-proof mechanism is used to catch residual pesticide dripping due to gravity during spraying. It includes a leak-proof cover and a connecting pipe for connecting the leak-proof cover to the output end of the spray gun. The leak-proof cover is installed through one end of the connecting pipe, so that the spray gun can spray pesticide onto the back of the blades through the connecting pipe and the leak-proof cover. At the same time, the leak-proof cover can catch the pesticide dripping from the back of the blades.

2. The spraying device for controlling diseases in cherry tomato seedlings according to claim 1, characterized in that, One end of the connecting pipe is provided with a first connecting mechanism for detachable connection with the output end of the spray gun, and the other end is provided with a second connecting mechanism for detachable connection with the leak-proof cover.

3. The spraying device for controlling diseases in cherry tomato seedlings according to claim 2, characterized in that, The first connecting mechanism includes an external threaded cylinder fixed to the output end of the spray gun and an internal threaded cap sleeved on the connecting pipe, wherein the internal threaded cap is threadedly connected to the external threaded cylinder.

4. The spraying device for controlling diseases in cherry tomato seedlings according to claim 3, characterized in that, The connecting pipe is L-shaped and is rotatably connected to the internal threaded cover. The internal threaded cover is provided with a limiting component to restrict the free rotation of the connecting pipe.

5. A spraying device for controlling diseases in cherry tomato seedlings according to claim 4, characterized in that, The limiting assembly includes a side plate fixed to the outer end wall of the internal threaded cover, a telescopic rod telescopically disposed between the side plate and the connecting pipe, and a compression spring sleeved on the telescopic rod. One end of the telescopic rod is fixedly connected to the side plate, and the other end points towards the connecting pipe. One end of the compression spring is connected to the side, and the other end is connected to the end of the telescopic rod away from the side plate. Under the drive of the compression spring, the telescopic rod elastically presses against the outer wall of the connecting pipe. Multiple limiting grooves for the ends of the telescopic rod to abut against are provided along the circumference of the outer wall of the connecting pipe.

6. A spraying device for controlling diseases in cherry tomato seedlings according to claim 2, characterized in that, The second connecting mechanism includes an outer sleeve fixedly fitted onto the end of the connecting pipe, an inner sleeve installed on the outer end wall of the leak-proof cover, and multiple snap-fit ​​components disposed between the inner sleeve and the outer sleeve. Both the inner sleeve and the leak-proof cover have through holes in the middle for the connecting pipe to pass through. The outer sleeve is stably fitted onto the inner sleeve through the multiple snap-fit ​​components.

7. A spraying device for controlling diseases in cherry tomato seedlings according to claim 6, characterized in that, The inner sleeve plate has multiple sliding grooves on its side wall, and a relief groove communicating with the sliding grooves is formed on the upper surface of the inner sleeve plate. The snap-fit ​​assembly includes a snap-fit ​​plate that is slidably disposed in the sliding groove, a paddle fixed on the snap-fit ​​plate, and a spring located in the sliding groove that pushes the snap-fit ​​plate to slide away from the center of the inner sleeve plate. The paddle is slidably disposed in the relief groove, and the top of the paddle extends out of the relief groove. The outer sleeve plate has an installation groove for accommodating the inner sleeve plate, and a snap-fit ​​hole for the snap-fit ​​plate to pass through is formed on the side wall of the installation groove.

8. A spraying device for controlling diseases in cherry tomato seedlings according to claim 7, characterized in that, The snap-fit ​​assembly is provided in two sets and is symmetrically arranged on both sides of the connecting pipe. The two sliding grooves are distributed on both sides of the central axis of the inner sleeve plate along the radial direction of the inner sleeve plate.

9. A spraying device for controlling diseases in cherry tomato seedlings according to claim 1, characterized in that, The leak-proof cover is designed in the shape of a trumpet.

10. A spraying device for controlling diseases in cherry tomato seedlings according to claim 1, characterized in that, The bend in the connecting pipe is arc-shaped.

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