Pesticide applying device for trunk pest control

Abstract

The pesticide applying device comprises a gun shell, a liquid storage sleeve is arranged on the rear portion in the gun shell, a piston sleeve is slidably connected into the liquid storage sleeve, a reset spring is arranged between the interior of the piston sleeve and the liquid storage sleeve, and a first one-way valve mechanism is arranged on the rear portion in the liquid storage sleeve; the front end of the piston sleeve forwards communicates with a piston driving pipe, and a second one-way valve mechanism is arranged in the middle of the piston driving pipe; the front portion of the piston driving pipe is slidably and rotationally connected with a rotating pipe, the lower end of the gun shell is slidably connected with a trigger driving the piston driving pipe to move, the front end of the gun shell is provided with a driving motor used for driving the rotating pipe to rotate, and the front end, extending out of the gun shell, of the rotating pipe is provided with a medicine injection pipe. Spiral bit blades are arranged on the periphery of the liquid injection pipe from the front end to the rear end; the device further comprises a liquid storage barrel which is communicated with the liquid storage sleeve through a connecting hose. The device can directly drill into insect holes for pesticide injection, operation is easy and convenient, and damage to trunks is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of pest control, and in particular to a pesticide application device for tree trunk pest control. Background Art

[0002] In landscaping and forestry management, tree trunk pests have always been a major problem that plagues maintenance personnel. Once a tree is attacked by pests, it will not only directly affect its growth state, but may also endanger the entire ecosystem due to the spread of pests and diseases. For example, common tree trunk pests such as Anoplophora glabripennis and Aromia bungii lay eggs by digging tunnels under the bark. After the larvae hatch, they eat the xylem, which blocks the transport of nutrients in the tree and eventually weakens or even kills the tree. In addition, these pests may also carry pathogens, further exacerbating the health problems of the trees.

[0003] One of the commonly used prevention and control methods for tree trunk pests is to inject pesticides into wormholes. This method mainly applies pesticides directly to the area where pests are active in order to achieve efficient pest control. However, in actual operation, direct injection of pesticides often faces many difficulties because the wormholes are usually small. In order to solve this problem, traditional practices often require the use of tools to artificially enlarge the wormholes so that the pesticides can be injected smoothly. Although this approach can improve the coverage and penetration of the pesticides to a certain extent, it inevitably causes additional damage to the tree trunks and weakens the defense capabilities of the trees themselves. At the same time, this manual operation method is time-consuming and labor-intensive, greatly reducing the efficiency of prevention and control work. Summary of the invention

[0004] The purpose of the present invention is to provide a pesticide application device for tree trunk pest control, which can directly drill into insect holes to inject pesticides, is simple and convenient to operate, reduces damage to tree trunks, and can effectively improve the efficiency of tree trunk pest control.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a pesticide application device for tree trunk pest control, comprising a gun housing, a liquid storage sleeve arranged along its length direction and with an open front end at the rear portion of the gun housing, the rear end of the liquid storage sleeve being connected to a connecting pipe that passes through the gun housing backwards, a piston sleeve with an open rear end being slidably connected in the liquid storage sleeve, a return spring being arranged between the front end of the piston sleeve and the rear end of the liquid storage sleeve, a first one-way valve mechanism that is forward-conducting is arranged in the rear portion of the liquid storage sleeve, the front end of the piston sleeve is forwardly connected to a piston drive pipe with an open front end, the inner diameter of the piston drive pipe is smaller than that of the piston sleeve, and a second one-way valve mechanism that is backward-conducting is arranged in the middle portion of the piston drive pipe;

[0006] The front part of the piston driving tube is covered with a rotating tube which is slidably and rotatably connected with the inner wall thereof, the lower end of the gun housing is provided with a track groove below the piston driving tube, a slide bar is slidably connected in the track groove, the slide bar is upwardly connected to the piston driving tube through a connecting bar, a trigger is provided at the lower end of the slide bar, a driving motor for driving the rotating tube to rotate is installed at the front end of the gun housing, a drug injection tube is provided at the front end of the rotating tube extending out of the gun housing, a spiral drill blade is provided on the outer periphery of the injection tube from the front end thereof to the rear, a handle is provided downwardly at the lower end of the rear part of the gun housing, a battery is provided in the handle, and a control button for controlling the operation of the driving motor is provided on the side of the handle facing the trigger;

[0007] It also includes a liquid storage barrel, wherein the upper end of the liquid storage barrel is provided with a connecting port, the connecting port is downwardly connected to a suction pipe extending downwardly into the bottom of the liquid storage barrel, and the connecting port is connected to the connecting pipe through a connecting hose.

[0008] By adopting the above technical solution, when in use, the injection tube is aligned with the wormhole, and after the drive motor is started by the control button, the drive motor drives the injection tube and the piston drive tube to rotate, and a slightly larger borehole is drilled at the wormhole position;

[0009] Then, the trigger is pulled to drive the piston drive tube to move backward. When the piston sleeve moves backward in the liquid storage sleeve, the compression space generates positive pressure, so that the first one-way valve mechanism is closed, the second one-way valve mechanism is opened, and the liquid or air in the liquid storage sleeve is squeezed into the piston drive tube, and then sprayed out from the front end of the injection tube through the piston drive tube and the rotating tube in sequence, and sprayed into the wormhole;

[0010] After releasing the trigger, the piston sleeve is pushed forward by the action of the return spring, the space of the liquid storage sleeve is expanded to generate negative pressure inside, so that the first one-way valve mechanism is opened and the second one-way valve mechanism is closed. After the negative pressure suction is generated, the solution is sucked from the liquid storage barrel, the suction tube, the connecting hose and the connecting tube into the liquid storage sleeve for temporary storage for the next use.

[0011] The present invention is further configured as follows: the first one-way valve mechanism includes a hollow cover located at the rear portion of the liquid storage sleeve, and a first small ball movably disposed in the hollow cover and capable of blocking the connecting tube.

[0012] The present invention is further configured as follows: the second one-way valve mechanism includes a shut-off channel located in the middle of the piston drive tube and with an inner diameter gradually decreasing toward the rear, a limit strip located in the piston drive tube and in front of the shut-off channel, and a second small ball movably arranged between the shut-off channel and the limit strip.

[0013] The present invention is further configured as follows: the rotating tube passes through the rotor of the driving motor and is fixedly connected thereto.

[0014] The present invention is further configured as follows: a liquid filling port is provided at the upper end of the liquid storage barrel, and a sealing cover is detachably connected to the liquid filling port.

[0015] The present invention is further configured as follows: a handle is provided at the upper end of the liquid storage barrel.

[0016] In summary, the present invention has the following beneficial effects:

[0017] First, the present invention uses electric drilling and injection to further expand the wormhole to facilitate the injection of liquid medicine. Compared with the traditional method of manually expanding the wormhole using tools, the present invention is more efficient and can complete the injection of liquid medicine more quickly. In addition, the wormhole is only slightly expanded to a depth that is convenient for injection by the injection tube. Compared with manual hole expansion, the damage to the tree trunk is less;

[0018] Secondly, the invention has an ingenious internal design, and can drive the liquid medicine to be sprayed out from the injection tube by pulling the trigger back and forth, so that the injection is faster and more convenient;

[0019] Thirdly, the present invention separates the liquid storage barrel and the gun shell into a separate body, which ensures portability while making the gun shell lighter and more time-saving and labor-saving in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a partial cross-sectional view used to show the internal structure of the gun casing;

[0022] Figure 3 It is a cross-sectional view used to show the internal structure of the liquid storage sleeve, piston sleeve, piston drive tube, rotating tube and injection tube;

[0023] Figure 4 It is a partial cross-sectional view used to show the internal structure of the liquid storage barrel.

[0024] In the figure: 1. gun case; 11. track groove; 12. handle; 13. battery; 14. control button; 2. liquid storage sleeve; 21. connecting pipe; 22. reset spring; 23. hollow cover; 24. first small ball; 3. piston sleeve; 4. piston drive tube; 41. intercepting channel; 42. limit strip; 43. second small ball; 44. slide bar; 45. connecting strip; 46. trigger; 5. rotating tube; 51. injection tube; 52. spiral drill blade; 6. drive motor; 7. liquid storage barrel; 71. connecting port; 72. suction tube; 73. connecting hose; 74. liquid filling port; 75. sealing cover; 76. handle. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0026] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example, see Figure 1-4 A pesticide application device for tree trunk pest control includes a gun housing 1, a liquid storage sleeve 2 arranged along the length direction and with an open front end is arranged at the rear of the gun housing 1, and a connecting pipe 21 that passes through the gun housing 1 backward is connected to the rear end of the liquid storage sleeve 2. A piston sleeve 3 with an open rear end is slidably connected in the liquid storage sleeve 2, a return spring 22 is arranged between the front end of the piston sleeve 3 and the rear end of the liquid storage sleeve 2, a hollow cover 23 is arranged at the rear of the liquid storage sleeve 2, and a first small ball 24 that can block the connecting pipe 21 is movably arranged in the hollow cover 23. When negative pressure is generated in the liquid storage sleeve 2, the first small ball 24 moves without blocking the connecting pipe 21, and when positive pressure is generated in the liquid storage sleeve 2, the first small ball 24 is pressed to block the connecting pipe 21. The front end of the piston sleeve 3 is connected forwardly to a piston drive tube 4 with an open front end. The inner diameter of the piston drive tube 4 is smaller than that of the piston sleeve 3. A cut-off channel 41 with an inner diameter that gradually decreases backward is arranged in the middle of the piston drive tube 4. A limit strip 42 is horizontally arranged in front of the cut-off channel 41 in the piston drive tube 4. A second small ball 43 is movably arranged between the cut-off channel 41 and the limit strip 42 in the piston drive tube 4. When negative pressure is generated in the liquid storage sleeve 2, the second small ball 43 blocks the cut-off channel 41 by suction. When positive pressure is generated in the liquid storage sleeve 2, the second small ball 43 does not block the cut-off channel 41 by thrust.

[0030] The front part of the piston driving tube 4 is covered with a rotating tube 5 which is slidably and rotatably connected to the inner wall thereof. The lower end of the gun housing 1 is provided with a track groove 11 below the piston driving tube 4. A slide bar 44 is slidably connected in the track groove 11. The slide bar 44 is upwardly connected to the piston driving tube 4 through a connecting bar 45. A trigger 46 is provided at the lower end of the slide bar 44. The piston driving tube 4 is driven to move backward by pulling the trigger 46. A driving motor 6 is installed at the front end of the gun housing 1. The rotating tube 5 penetrates the rotor of the driving motor 6 and is fixedly connected thereto. The driving motor 6 can drive the piston driving tube 4 to rotate. The front end of the rotating tube 5 is extended out of the front end of the gun housing 1 and is provided with a medicine injection tube 51. The outer periphery of the injection tube is provided with three spiral drill blades 52 from the front end to the rear of the injection tube, so as to facilitate drilling into the tree trunk. A handle 12 is provided downward at the lower end of the rear part of the gun housing 1. A detachable battery 13 is provided in the handle 12. A control button 14 for controlling the operation of the driving motor 6 is also provided on the side of the handle 12 facing the trigger 46.

[0031] It also includes a liquid storage barrel 7, which has a connecting port 71 at the upper end thereof, which is downwardly connected to a suction pipe 72 extending downwardly into the bottom of the liquid storage barrel 7, and the connecting port 71 is connected to the connecting pipe 21 via a connecting hose 73, and a liquid filling port 74 is provided at the upper end of the liquid storage barrel 7, which has a sealing cover 75 detachably connected thereto, and a handle 76 is provided at the upper end of the liquid storage barrel 7.

[0032] Working principle: When in use, align the injection tube 51 with the wormhole, and after starting the drive motor 6 through the control button 14, the drive motor 6 drives the injection tube 51 and the piston drive tube 4 to rotate, and drill a slightly larger hole at the wormhole position;

[0033] Then, the trigger 46 is pulled to drive the piston drive tube 4 to move backward. When the piston sleeve 3 moves backward in the liquid storage sleeve 2, the compression space generates positive pressure, pushes the first small ball 24 to block the connecting tube 21, pushes the second small ball 43 to move without blocking the intercepting channel 41, and squeezes the liquid or air in the liquid storage sleeve 2 into the piston drive tube 4, and is ejected from the front end of the injection tube 51 through the piston drive tube 4 and the rotating tube 5 in sequence, and is ejected into the wormhole;

[0034] After releasing the trigger 46, the piston sleeve 3 is pushed forward by the action of the return spring 22, the space of the liquid storage sleeve 2 is expanded, and negative pressure is generated inside, pushing the first small ball 24 to move without blocking the connecting tube 21, and pushing the second small ball 43 to move to block the intercepting channel 41. After the negative pressure suction is generated, the solution is sucked from the liquid storage barrel 7, the suction tube 72, the connecting hose 73 and the connecting tube 21 into the liquid storage sleeve 2 for temporary storage for next use.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A pesticide application device for controlling tree trunk pests, comprising a gun housing (1), characterized in that: The rear part of the gun housing (1) is provided with a liquid storage sleeve (2) which is arranged along its length direction and has an open front end. The rear end of the liquid storage sleeve (2) is connected to a connecting pipe (21) which passes through the gun housing (1) backward. A piston sleeve (3) with an open rear end is slidably connected to the liquid storage sleeve (2). A return spring (22) is provided between the front end of the piston sleeve (3) and the rear end of the liquid storage sleeve (2). The rear part of the liquid storage sleeve (2) is provided with a first one-way valve mechanism which is forward-conducting. The front end of the piston sleeve (3) is forwardly connected to a piston drive pipe (4) with an open front end. The inner diameter of the piston drive pipe (4) is smaller than that of the piston sleeve (3). A second one-way valve mechanism which is backward-conducting is provided in the middle part of the piston drive pipe (4). The front outer sleeve of the piston drive tube (4) is provided with a rotating tube (5) which is slidably and rotatably connected to the inner wall of the piston drive tube (4). The lower end of the gun housing (1) is provided with a track groove (11) below the piston drive tube (4). A slide bar (44) is slidably connected in the track groove (11). The slide bar (44) is upwardly connected to the piston drive tube (4) through a connecting bar (45). A trigger (46) is provided at the lower end of the slide bar (44). A trigger (46) is provided at the front end of the gun housing (1) for driving the rotating tube (5). a driving motor (6) for rotating a tube (5), a front end of the rotating tube (5) extending out of the gun housing (1) being provided with a drug injection tube (51), a spiral drill blade (52) being provided on the outer periphery of the drug injection tube from the front end thereof to the rear, a handle (12) being provided downwardly at the lower end of the rear part of the gun housing (1), a battery (13) being provided in the handle (12), and a control button (14) for controlling the operation of the driving motor (6) being provided on a side of the handle (12) facing the trigger (46); It also comprises a liquid storage barrel (7), wherein the upper end of the liquid storage barrel (7) is provided with a connection port (71), the connection port (71) is downwardly connected to a suction pipe (72) extending downwardly into the bottom of the liquid storage barrel (7), and the connection port (71) is connected to the connection pipe (21) via a connection hose (73).

2. A pesticide application device for controlling tree trunk pests according to claim 1, characterized in that: The first one-way valve mechanism comprises a hollow cover (23) located at the rear portion of the liquid storage sleeve (2), and a first small ball (24) movably arranged in the hollow cover (23) and capable of blocking the connecting pipe (21).

3. A pesticide application device for controlling tree trunk pests according to claim 1, characterized in that: The second one-way valve mechanism comprises a shut-off channel (41) located in the middle of the piston drive tube (4) and having an inner diameter that gradually decreases toward the rear, a limit strip (42) located in the piston drive tube (4) and in front of the shut-off channel (41), and a second small ball (43) movably arranged between the shut-off channel (41) and the limit strip (42).

4. A pesticide application device for controlling tree trunk pests according to claim 1, characterized in that: The rotating tube (5) passes through the rotor of the driving motor (6) and is fixedly connected thereto.

5. The pesticide application device for controlling tree trunk pests according to claim 1, characterized in that: The upper end of the liquid storage barrel (7) is provided with a liquid filling port (74), and the liquid filling port (74) is detachably connected to a sealing cover (75).

6. The pesticide application device for controlling tree trunk pests according to claim 1, characterized in that: A handle (76) is provided at the upper end of the liquid storage barrel (7).

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