Medicine injection device

Abstract

The invention discloses a medicine injection device which comprises an electric drill assembly, a punching assembly, a liquid inlet assembly and a high-pressure assembly, the electric drill assembly comprises an electric drill output shaft, the punching assembly is connected with the electric drill output shaft in a front-back mode, the punching assembly comprises a medicine injection needle at the front end, the electric drill assembly is provided with an electric pick mode, and in the electric pick mode, the electric drill output shaft knocks the punching assembly forwards; the liquid inlet assembly is connected with the punching assembly and the high-pressure assembly, connected medicine injection channels are arranged in the liquid inlet assembly and the punching assembly, and the high-pressure assembly is used for injecting medicine liquid into the medicine injection channels. Punching and pesticide injection are integrally designed, the punching speed is high, operation is easy and convenient, the working efficiency is high, punched pesticide injection holes are easy to recover, and damage to trees is small.

Description

Technical Field

[0001] The invention relates to the technical field of tree drug injection, and in particular to a drug injection device. Background Art

[0002] The high-pressure drug delivery technology for tree trunks is to inject the drug solution into the plant body under high pressure, so that it can be transported to various parts of the tree body with the flow of sap to produce effects. It is mainly used for drug injection prevention and control of tall trees. Existing drilling and drug injection equipment usually performs drilling and drug injection separately. The general operation steps are: first, you need to use a drill bit to drill a drug hole deep into the wood on the tree trunk, then take out the drill bit, and inject the drug solution from the drug hole by means of an infusion pump, which is time-consuming and cumbersome to operate, and has low work efficiency; at the same time, the drilling devices currently used are mostly portable electric drills or backpack gasoline engines that drive the drill bit to rotate and drill holes. The rotary drilling method takes a long time to drill holes, and the injection holes drilled are not easy to recover, which causes great damage to the trees. Summary of the invention

[0003] In order to solve at least one of the problems mentioned in the above background technology, the present invention provides an injection device with an integrated design of drilling and injection, fast drilling speed, simple operation, high work efficiency, and the injection holes drilled are easy to restore, with little damage to trees.

[0004] The specific technical solutions provided by the present invention are as follows:

[0005] Provided is a drug injection device, comprising an electric drill assembly, a drilling assembly, a liquid inlet assembly and a high-voltage assembly, wherein the electric drill assembly comprises an electric drill output shaft, the drilling assembly is connected to the electric drill output shaft front to back, the drilling assembly comprises a drug injection needle at the front end, the electric drill assembly is provided with an electric pick mode and in the electric pick mode, the electric drill output shaft strikes the drilling assembly forward, so that the drug injection needle strikes forward into the tree to drill a hole, the liquid inlet assembly connects the drilling assembly and the high-voltage assembly, connected drug injection channels are provided in the liquid inlet assembly and the drilling assembly, and the high-voltage assembly is used to inject drug solution into the drug injection channel.

[0006] By means of the above technical scheme, the present invention knocks the drilling assembly forward with the output shaft of the electric drill in the electric pick mode of the electric drill assembly, so that the injection needle is knocked forward into the tree to drill a hole. In this way, the injection needle is directly knocked into the tree to drill a hole through the large thrust of the output shaft of the electric drill. The drilling speed is fast and the operation is simple. At the same time, the knocking and drilling method allows the needle head of the injection needle to use a small diameter needle head. When the injection needle is withdrawn, the tree will slowly restore the injection hole, causing less damage to the tree. The drilling assembly and the high-voltage assembly are connected through the liquid inlet assembly, and connected injection channels are provided in the liquid inlet assembly and the drilling assembly. In this way, after the injection needle knocks into the tree to drill a hole, liquid medicine is injected into the injection channel through the high-voltage assembly, and the liquid medicine flows out of the injection needle into the tree to complete the injection of the liquid medicine, thereby realizing the integration of drilling and injection, and the drilling and injection operation is simple and the work efficiency is high.

[0007] As a preferred embodiment of the above scheme, the injection device also includes a transmission assembly and an ejection assembly. The transmission assembly connects the electric drill output shaft and the ejection assembly. The electric drill assembly is provided with an electric drill mode. In the electric drill mode, the electric drill output shaft rotates and drives the ejection assembly to move forward through the transmission assembly. The ejection assembly pushes the injection needle out of the tree by pressing the tree.

[0008] As a preferred embodiment of the above scheme, the transmission assembly includes an input gear, an output gear and a screw. The input gear fixed sleeve is arranged on the output shaft of the electric drill. The input gear is meshed with the output gear and can move forward and backward relative to each other. The output gear is fixedly connected to the screw. The ejection assembly includes a screw nut and a movable sleeve. The screw nut is threadedly connected to the screw and is fixedly connected to the movable sleeve. The front part of the injection needle extends out of the movable sleeve. The front end of the injection needle is provided with a liquid outlet hole connected to the injection channel.

[0009] As a preferred embodiment of the above scheme, the injection device also includes a shell assembly, the shell assembly includes a guide sleeve arranged in the movable sleeve, the punching assembly also includes an output rod and an elastic member movably arranged in the guide sleeve, the front end of the output rod is fixedly connected to the injection needle, the rear end of the output rod is in contact with the front end of the output shaft of the electric drill, an elastic member is provided between the output rod and the guide sleeve, a first avoidance groove is provided on the guide sleeve, and a second avoidance groove is provided on the movable sleeve, and one end of the liquid inlet assembly passes through the first avoidance groove and the second avoidance groove to be connected to the output rod.

[0010] As a preferred embodiment of the above scheme, the housing assembly also includes a connecting shell, which is fixedly connected to the rear end of the guide sleeve, the electric drill output shaft, input gear and output gear are arranged in the connecting shell, the output gear is rotatably arranged on the connecting shell, and the electric drill assembly is fixed on the connecting shell.

[0011] As a preferred embodiment of the above scheme, the high-pressure component includes a container and an injection component, the container is provided with a medicine liquid chamber and an installation chamber separated from each other, the injection component is arranged in the installation chamber, the injection component includes a driving member, a piston rod, a liquid storage chamber, a water outlet check valve and a water inlet check valve, the water outlet check valve connects the liquid storage chamber and the liquid inlet component, the water inlet check valve connects the liquid storage chamber and the medicine liquid chamber, the driving member drives the piston rod to reciprocate in the liquid storage chamber to press the medicine liquid in the liquid storage chamber into the liquid inlet component, or to draw the medicine liquid in the medicine liquid chamber into the liquid storage chamber.

[0012] As a preferred embodiment of the above scheme, the high-pressure component also includes a control component, the control component includes a main control board and a pressure detection component, the main control board is connected to the pressure detection component and the driving component, the liquid storage chamber includes a liquid storage chamber body and a connecting chamber, the piston rod is arranged in the liquid storage chamber body, a through hole is connected between the liquid storage chamber body and the connecting chamber, the connecting chamber is respectively connected to the water outlet check valve and the water inlet check valve, and the pressure detection component is arranged on the connecting chamber or the through hole.

[0013] As a preferred embodiment of the above scheme, the electric drill assembly also includes an electric drill body connected to the electric drill output shaft, an upper shell of the electric drill connecting plate and a lower shell of the electric drill connecting plate, the upper shell of the electric drill connecting plate and the lower shell of the electric drill connecting plate are fixedly connected, the front of the electric drill body passes through the upper shell of the electric drill connecting plate and the lower shell of the electric drill connecting plate, the main control board is arranged in the upper shell of the electric drill connecting plate or the lower shell of the electric drill connecting plate, and the control assembly also includes a terminal board connected to the main control board, the terminal board is arranged in the installation cavity, and the terminal board is connected to the pressure detection component and the driving component.

[0014] As a preferred embodiment of the above scheme, the driving part includes a motor, a planetary transmission assembly, a driving screw and a driving screw nut. The planetary transmission assembly connects the motor and the driving screw. The driving screw nut is threaded on the driving screw. The end of the piston rod facing away from the liquid storage chamber is fixed on the driving screw nut. The piston rod is provided with a third avoidance groove, and the driving screw portion is arranged in the third avoidance groove.

[0015] As a preferred embodiment of the above scheme, the injection assembly also includes a sensing assembly, which includes a first sensor, a second sensor and a travel rod fixed on the driving screw nut. The first sensor and the second sensor are connected to the motor, and the travel rod moves between the first sensor and the second sensor. When the second sensor senses that the travel rod is approaching, the motor changes direction, and when the first sensor senses that the travel rod is approaching, the motor stops working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic cross-sectional structural diagram of a handheld terminal of the present invention;

[0019] Figure 3 for Figure 2 Schematic diagram of the local structure;

[0020] Figure 4 It is a cross-sectional structural schematic diagram of the container and the injection assembly of the present invention;

[0021] Figure 5 for Figure 4 Schematic diagram of the bottom structure;

[0022] Figure 6 It is a schematic diagram of the overall structure of the injection assembly of the present invention;

[0023] Figure 7 It is a schematic cross-sectional structural diagram of the injection assembly of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more centered elements can exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more centered elements can exist between them. The terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which is 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] As described in the background technology, the trunk high-pressure drug delivery technology is to inject liquid medicine into the plant body under high pressure so that it can be transported to various parts of the tree body with the flow of sap to produce effects. It is mainly used for drug injection and prevention of tall trees. The existing drug injection device and the punching device are usually handheld together for punching and drug injection. The whole machine is large in size and heavy in weight. The punching device and the drug injection device are usually split. The time between punching is long, and wood chips will be discharged at the same time. The drug solution is easy to seep out during injection, causing waste and polluting the environment. The punched injection holes are usually more than 8-10mm. The injection holes are too large and difficult to recover, causing great damage to the trees. The injection amount is small at one time, and the injection time for a single tree is long, which is time-consuming and troublesome to operate, and the work efficiency is low. The drug injection device of the present invention has an integrated design of drilling and injection, fast drilling speed, simple operation, high work efficiency, and the punched injection holes are easy to recover, causing little damage to the trees. The following is a detailed explanation of the embodiments of the present invention, in which the front and upper parts of the present invention are Figure 2 and Figure 6 The directions of the arrows in .

[0027] The following content is for reference Figures 1 to 7 .

[0028] The present invention provides a drug injection device, comprising an electric drill component 1, a punching component 2, a liquid inlet component 3 and a high-voltage component 4. The electric drill component 1 comprises an electric drill output shaft 11, the punching component 2 is connected to the electric drill output shaft 11 front and back, the punching component 2 comprises an injection needle 21 at the front end, the electric drill component 1 is provided with an electric pick mode and in the electric pick mode, the electric drill output shaft 11 knocks the punching component 2 forward so that the injection needle 21 knocks forward into the tree to punch a hole, i.e., a drug injection hole, the liquid inlet component 3 connects the punching component 2 and the high-voltage component 4, and a connected drug injection channel 10 is provided in the liquid inlet component 3 and the punching component 2, the high-voltage component 4 is used to inject drug solution into the drug injection channel 10, and the front end of the drug injection needle 21 is provided with six liquid outlet holes 211 connected to the drug injection channel 10.

[0029] The injection device also includes a transmission assembly 5 and an ejection assembly 6. The transmission assembly 5 connects the electric drill output shaft 11 and the ejection assembly 6. The electric drill assembly 1 is provided with an electric drill mode. In the electric drill mode, the electric drill output shaft 11 rotates and drives the ejection assembly 6 to move forward through the transmission assembly 5. The ejection assembly 6 pushes the injection needle 21 out of the tree by pressing the tree.

[0030] The transmission assembly 5 includes an input gear 51, an output gear 52, a lead screw 53, a tightening screw 54, a limit screw 55 and a nut gasket 56. The input gear 51 is fixedly sleeved on the output shaft 11 of the electric drill. The input gear 51 is meshed with the output gear 52 and can move forward and backward relative to each other. That is, when the output shaft 11 of the electric drill drives the input gear 51 to move forward, the input gear 51 moves forward relative to the output gear 52 and remains meshed with the output gear 52. The output gear 52 is fixedly connected to the lead screw 53. The ejection assembly 6 includes a lead screw nut 61 and a movable sleeve 62. The lead screw nut 61 is threadedly connected to the lead screw 53 and is fixedly connected to the movable sleeve 62. The front part of the injection needle 21 extends out of the movable sleeve 62. In this embodiment, the lead screw 53 is a ball screw, the output gear 52 is provided with a stepped hole 521, the front part of the stepped hole 521 is a D-shaped hole 522, the rear end of the lead screw 53 is provided with a D-shaped shaft 531, the D-shaped shaft 531 is inserted into the D-shaped hole 522, the D-shaped shaft 531 is provided with a threaded hole 532, the tightening screw 54 is threadedly connected with the threaded hole 532, and the head of the tightening screw 54 is pressed against the step of the stepped hole 521; the movable sleeve 62 is provided with a screw threaded through the front end of the movable sleeve 62; The upper and lower chambers at the ends, the lead screw 53 and the lead screw nut 61 are arranged in the upper chamber 621, the front end of the lead screw 53 is provided with a fixed limiting screw 55, the upper and lower ends of the limiting screw 55 are provided with protruding limiting parts 551, the middle inner wall of the upper chamber 621 is provided with a limiting protrusion 622 that cooperates with the limiting part 551, the lead screw nut 61 is fixed in the upper chamber 621 on the rear side of the limiting protrusion 622, and a nut gasket 56 is provided on one side of the lead screw nut 61.

[0031] The drug injection device also includes a shell assembly 7, which includes a guide sleeve 71 arranged in the movable sleeve 62. The punching assembly 2 also includes an output rod 22 and an elastic member 23 movably arranged in the guide sleeve 71. The front end of the output rod 22 is fixedly connected to the drug injection needle 21, and the rear end of the output rod 22 contacts the front end of the electric drill output shaft 11. The elastic member 23 is arranged between the output rod 22 and the guide sleeve 71. The bottom end of the guide sleeve 71 is provided with a first avoidance groove 711, and the bottom end of the movable sleeve 62 is provided with a second avoidance groove 623 connected with the first avoidance groove 711. The second avoidance groove 623 runs through the rear end of the movable sleeve 62 to facilitate the movable sleeve 62 to move forward when performing an ejection action. One end of the liquid inlet assembly 3 passes through the first avoidance groove 711 and the second avoidance groove 623 and is connected to the output rod 22. In this embodiment, the guide sleeve 71 and the output rod 22 are arranged in the lower chamber 624 of the movable sleeve 62, and the injection needle 21 includes a needle head 212 at the front end, a body 213 in the middle, and a threaded portion 214 at the rear end. The threaded portion 214 is threadedly fixedly connected to the threaded hole 221 at the front end of the output rod 22, so that it is convenient to replace injection needles 21 of different sizes and models. The body 213 and the needle head 212 extend out of the lower chamber 624 of the movable sleeve 62, and the rear end of the body 213 abuts against the front end of the output rod 22. The six liquid outlet holes 211 are evenly arranged at the connection between the body 213 and the needle head 212. The liquid outlet holes 211 The diameter is 0.3mm, which can prevent the liquid outlet hole 211 from being blocked. The main body 213 adopts a structure with a small front end and a large rear end, so that the rear end of the main body 213 can block the injection hole when injecting medicine to prevent the liquid from spraying out. The rear end of the main body 213 is also provided with a limiting boss 215. The main body 213 and the needle 212 on the front side of the limiting boss 215 are effective parts when punching, and the length of the effective part is 46mm. The needle 212 adopts a conical structure, and the maximum diameter of the needle 212 is not more than 5.3mm. In this way, when the injection needle 21 is withdrawn, the tree will slowly restore the injection hole, causing less damage to the tree.

[0032] The housing assembly 7 also includes a connecting shell 72, which is fixedly connected to the rear end of the guide sleeve 71. The electric drill output shaft 11, the input gear 51 and the output gear 52 are arranged in the connecting shell 72, and the output gear 52 is rotatably arranged on the connecting shell 72. The electric drill assembly 1 is fixed on the connecting shell 72. In this embodiment, the connecting shell 72 includes a transmission shell 721 and a connecting shell body 722 which are fixedly connected front and back and internally connected. The transmission shell 721 is also provided with two upper and lower chambers. The upper chamber 723 of the transmission shell 721 is communicated with the upper chamber 621 of the movable sleeve 62, and the lower chamber 724 of the transmission shell 721 is communicated with the lower chamber 624 of the movable sleeve 62. The transmission assembly 5 also includes a bearing. The output gear 52 is rotatably arranged in the upper chamber 723 of the transmission shell 721 through the bearing. The bearing includes but is not limited to a deep groove ball bearing or a plane bearing. In this embodiment, the output gear 52 is rotatably arranged in the upper chamber 723 of the transmission shell 721 through a deep groove ball bearing 57 and a plane bearing 58. The rear end of the guide sleeve 71 is threadedly fixedly connected to In the lower chamber 724 of the transmission housing 721, the guide sleeve 71 is provided with a step hole 712 connected to the first avoidance groove 711, the output rod 22 is arranged in the step hole 712, and a boss 222 is provided on the output rod 22. The elastic member 23 is arranged between the step of the step hole 712 and the boss 222. The elastic member 23 in this embodiment is a spring, and a groove 223 is provided at the rear end of the output rod 22. The front end of the electric drill output shaft 11 extends into the lower chamber 724, the step hole 712 and the groove 223 of the transmission housing 721 in turn and contacts with the inner wall of the groove 223, and the electric drill output shaft 11 can rotate in the groove 223; the transmission housing 721 includes a buffer gasket 725 at the front end, and the rear end of the movable sleeve 62 abuts against the buffer gasket 725.

[0033] The high-pressure component 4 includes a container 41 and an injection component 42. The container 41 is provided with a medicine liquid chamber 411 and an installation chamber 412 separated from each other. The injection component 42 is arranged in the installation chamber 412. The injection component 42 includes a driving member 421, a piston rod 422, a liquid storage chamber, a water outlet check valve 424, a water inlet check valve 425 and a gear box 9. The water outlet check valve 424 connects the liquid storage chamber and the liquid inlet component 3, and the water inlet check valve 425 connects the liquid storage chamber and the medicine liquid chamber 411. The driving member 421 drives the piston rod 422 to reciprocate in the liquid storage chamber to press the medicine liquid in the liquid storage chamber into the liquid inlet component 3, or to draw the medicine liquid in the medicine liquid chamber 411 into the liquid storage chamber. In this embodiment, the liquid inlet assembly 3 includes a liquid inlet joint 31, a first high-pressure hose 32, a water outlet joint 33, a second high-pressure hose 34, a high-pressure hose joint 35, a water inlet joint 36 and a water inlet hose 37. The output rod 22 is provided with a connecting groove 224 which is connected to the injection channel 10 and the first avoidance groove 711. One end of the liquid inlet joint 31 is threadedly fixedly connected to the connecting groove 224. When the output rod 22 moves forward, the liquid inlet joint 31 follows the output rod 22 and moves forward along the first avoidance groove 711 and the second avoidance groove 623. The other end of the liquid inlet joint 31 is threadedly fixedly connected to the first high-pressure hose 32. The container 41 is provided with a water outlet joint 33. One end of the first high-pressure hose 32 is connected to the second high-pressure hose 34 through the water outlet joint 33, and the second high-pressure hose 34 is connected to the water outlet check valve 424 through the high-pressure hose joint 35; the water inlet check valve 425 is connected to the water inlet hose 37 through the water inlet joint 36, and the water inlet hose 37 is connected to the liquid medicine chamber 411.

[0034] The high-pressure assembly 4 also includes a control assembly (not shown), which includes a main control board 431 and a pressure detection member 432. The main control board 431 is connected to the pressure detection member 432 and the driving member 421. The liquid storage chamber includes a liquid storage chamber body 426 and a connecting chamber 427. The piston rod 422 is arranged in the liquid storage chamber body 426. A through hole 428 is connected between the liquid storage chamber body 426 and the connecting chamber 427. The liquid storage chamber body 426, the connecting chamber 427 and the through hole 428 are all arranged on the cavity 429. The connecting chamber 427 is respectively connected to the water outlet check valve 424 and the water inlet check valve 425. The pressure detection member 432 is arranged on the connecting chamber 427 or the through hole 428. The pressure detection member 432 in this embodiment is a pressure sensor 432, which is used to feed back the liquid pressure data on the connecting chamber 427 or the through hole 428 to the main control board in real time when pushing or drawing liquid.

[0035] The electric drill assembly 1 also includes an electric drill body 12 connected to the electric drill output shaft 11, an electric drill connecting plate upper shell 13 and an electric drill connecting plate lower shell 14, the electric drill connecting plate upper shell 13 and the electric drill connecting plate lower shell 14 are fixedly connected and fixedly connected to the connecting shell body 722, the front part of the electric drill body 12 passes between the electric drill connecting plate upper shell 13 and the electric drill connecting plate lower shell 14 and extends into the connecting shell body 722, the electric drill output shaft 11, the input gear 51 and the rear part of the output gear 52 are arranged in the connecting shell body 722, the front part of the electric drill body 12 is provided with an electric drill pressure cover 121, the electric drill pressure cover 121 is clamped between the electric drill connecting plate upper shell 13 and the electric drill connecting plate lower shell 14, and the rear end of the electric drill output shaft 11 is provided The drill body 12 is placed in the electric drill pressure cover 121, and the front end of the electric drill pressure cover 121 is provided with an electric drill cover 122. The rear part of the electric drill body 12 extends out of the rear ends of the upper shell 13 of the electric drill connecting plate and the lower shell 14 of the electric drill connecting plate. The rear part of the electric drill body 12 is provided with an electric drill driving structure (not shown), an electric drill housing (not shown) and an electric drill handle (not shown). The driving structure of the electric drill is arranged in the electric drill housing. The driving structure of the electric drill can switch between two modes of electric pick and electric drill. The electric drill housing is provided with a mode switching knob, a reversing switch and a start-stop switch. The start-stop switch is arranged on the electric drill housing at the electric drill handle. The electric drill with two modes of electric pick and electric drill is an electric drill in the prior art, and its specific driving structure and working principle are not repeated here.

[0036] The main control board 431 is arranged in the upper shell 13 of the electric drill connecting plate or the lower shell 14 of the electric drill connecting plate. The control component also includes a terminal board 433 connected to the main control board 431, a buzzer (not shown), an injection indicator light (not shown), a control board cover 434, a handle 435, an input terminal 436, a first signal line (not shown), a second signal line (not shown) and a third signal line (not shown). The terminal board 433 is arranged in the installation cavity 412, and the terminal board 433 is connected to the pressure detection component 432 and the driving component 421. In this embodiment, the main control board 431 is arranged in the upper shell 13 of the electric drill connection plate, and a buzzer and an injection indicator light are arranged on the main control board 431. A control board cover 434 is fixed on the upper shell 13 of the electric drill connection plate, and the control board cover 434 covers the main control board 431, the buzzer and the injection indicator light. Through the control board cover 434, the injection indicator light can be seen to be lit. The control board cover 434 is provided with an injection start key 437 connected to the main control board 431 and reset buttons. The main control board 431 is a function control PCB board, and the terminal board 433 is a terminal PCB board. The lower end of the lower shell 13 of the electric drill connection plate is connected to a handle 435, and the lower end of the handle 435 is provided with an input terminal 43 6. A signal terminal interface 437 is provided on the main control board 431, and the signal terminal interface 437 is connected to a first signal line. The first signal line passes through a gap between the electric drill pressure cover 121 and the upper shell 13 of the electric drill connecting plate and a gap between the electric drill pressure cover 121 and the lower shell 14 of the electric drill connecting plate, and then passes through a wire channel (not shown) in the lower shell 14 of the electric drill connecting plate and the inner cavity of the handle 435 to be connected to an input terminal 436. The input terminal 436 is connected to a power and signal line connector 413 on the container 41 through a second signal line, and the power and signal line connector 413 is connected to a terminal board 433 through a third signal line, and the terminal board 433 is connected to a pressure sensor 432.

[0037] The driving member 421 includes a motor 81, a planetary transmission assembly 82, a driving screw 83 and a driving screw nut 84. The planetary transmission assembly 82 connects the motor 81 and the driving screw 83. The driving screw nut 84 is screwed on the driving screw 83. The end of the piston rod 422 facing away from the liquid storage chamber is fixed on the driving screw nut 84. The piston rod 422 is provided with a third avoidance groove 85, and the driving screw 83 is partially arranged in the third avoidance groove 85. In this embodiment, the motor 81 is a brushless motor. The brushless motor has no brushes, is light in weight, has less interference, low noise, runs smoothly and has a long service life. The driving member 421 also includes a motor driving plate 86, a nut sleeve 87 and a screw cover 88 connected to the motor 81. The motor driving plate 86 is connected to the terminal plate 433. The nut sleeve 87 is sleeved on the driving screw nut 84. The lower end of the piston rod 422 is clamped and fixed between the driving screw nut 84 and the nut sleeve 87. The nut sleeve 87 is threadedly fixed on the piston rod 422. The screw cover 88 is arranged outside the nut sleeve 87 and the piston rod 422. The nut sleeve 87 is fixedly connected to the cavity 429 and a positioning ring 89 is provided between the nut sleeve 87 and the cavity 429; the planetary transmission assembly 82 is provided It is placed in the gear box 9, and a gear box cover 91 is provided on the gear box 9. The gear box 9 is fixedly connected to the screw cover 88 through a connecting plate 90. The motor 81 is fixed on the connecting plate 90. The planetary transmission assembly 82 includes motor teeth 821 on the motor shaft of the motor 81, a conversion shaft secondary gear 822 meshing with the motor teeth 821, a connecting shaft 823 connected to the conversion shaft secondary gear 822, a tertiary gear 824 meshing with the connecting shaft 823, a sun gear 825 connected to the tertiary gear 824, a planetary gear 826 meshing with the sun gear 825, a planetary carrier 827 carrying the planetary gear 826 and a locking screw 828, and the planetary carrier 827 is fixedly connected to the driving screw 83 through the locking screw 828.

[0038] The injection assembly 42 also includes a sensing assembly 92, which includes a first sensor 921, a second sensor 922, and a stroke rod 923 fixed to the driving screw nut 84. The first sensor 921 and the second sensor 922 are connected to the motor 81 and the terminal board 433. The stroke rod 923 is fixed to the nut sleeve 87. The stroke rod 923 moves between the first sensor 921 and the second sensor 922. When the second sensor 922 senses that the stroke rod 923 is approaching, the motor 81 changes direction. When the first sensor 921 senses that the stroke rod 923 is approaching, the motor 81 stops working. In this embodiment, the first sensor 921 and the second sensor 922 are the first Hall sensor 921 and the second Hall sensor 922, respectively, see Figure 6In the direction of the middle, the screw cover 88 is provided with a through slot 881 extending up and down, the travel rod 923 extends out of the through slot 881 and can move along the through slot 881, the first Hall sensor 921 is fixed on the outer wall of the screw cover 88 on the lower side of the through slot 881, and the second Hall sensor 922 is fixed on the outer wall of the screw cover 88 on the upper side of the through slot 881.

[0039] In this embodiment, the container 41 is a backpack water bottle 41, and the injection device also includes a shoulder strap (not shown), which is fixed on the container 41. The container 41 includes an upper container (not shown) and a lower container (not shown). The liquid medicine chamber 411 is arranged in the upper container. The capacity of the liquid medicine chamber 411 can reach 2.5L. The top of the upper container is provided with a liquid medicine inlet (not shown), and the liquid medicine inlet is provided with a knob cover 93. After the liquid medicine chamber 411 is filled with the liquid medicine inlet, 150 trees can be continuously injected with medicine. The installation chamber 412 includes an upper installation chamber (not shown) arranged on the side wall of the upper container. ) and a lower mounting cavity (not shown) arranged in the lower part of the container, the upper mounting cavity and the lower mounting cavity are connected, the injection assembly 42 is fixed in the upper mounting cavity, the cavity 429 extends downward into the lower mounting cavity, the terminal board 433 and the motor drive board 86 are fixed in the lower mounting cavity, and a battery 100 is also fixed in the lower mounting cavity. In this embodiment, the battery 100 is preferably a lithium battery 100. The lithium battery 100 has a long battery life, low noise, small size, and light weight. The battery 100 supplies the main control board 431, the terminal board 433, the motor 81, the motor drive board 86, the first Hall sensor 921 and the second Hall The sensor 922 and the pressure sensor 432 are powered, and the main control board 432 is connected to the battery 100 through a segmented power line (not shown), and the power line is connected to the power and signal line connector 413 and the input terminal 436. The power line routing outside the container 41 is in the same position as the routing position of the first signal line and the second signal line; a power switch 414 and a charging port 415 connected to the battery 100 are provided on the lower side wall of the container on one side of the battery 100. The battery 100 is charged through the charging port 415. A single charge can be used for 7-8 hours. The lower side wall of the container is also provided with a power switch 414 and a charging port 415 connected to the battery 100. 0 is connected to a power display screen (not shown in the figure), a water outlet connector 33 and a power and signal line connector 413 are arranged on the lower side wall of the container opposite to the power switch 414 and the charging port 415, and a power connector (not shown in the figure) is also arranged on the lower side wall of the container on the side of the power and signal line connector 413, and the lithium battery 100 is connected to the battery pack (not shown in the figure) at the rear bottom end of the electric drill body 12 through the power connector; the input terminal 436 is an 8P terminal, the first signal line and the second signal line are 8P cables located outside the container 41, and the third signal line is an 8P terminal cable located inside the container 41.

[0040] The injection device of the present embodiment is a backpack-type tree drilling and injection integrated machine. When working, the operator first carries the backpack water bottle 41 on his body through the shoulder strap, holds the electric drill handle and the handle 435, turns on the power switch 414 on the backpack water bottle 41, and then switches the mode switching knob on the electric drill shell to the electric pick mode, and then presses the start-stop switch to start the electric drill. The output shaft 11 of the electric drill knocks the output rod 22 forward, and the output rod 22 drives the needle head 212 and the body 213 of the injection needle 21 to knock into the tree trunk, and punch an injection hole on the tree trunk. At this time, the spring 23 is compressed by the output rod 22 to store elastic potential energy. It should be noted that in the process of the injection needle 21 knocking into the tree trunk, the operator needs to push the handheld end (electric drill assembly 1, drilling assembly 2, liquid inlet assembly 3, transmission assembly 5, ejection assembly 6 and shell assembly 7) forward at the same time, so that the injection needle 21 knocks into the tree trunk while the front end of the moving sleeve 62 is against the tree trunk, so as to facilitate the injection needle 21 to be ejected from the tree trunk later;

[0041] After the injection needle 21 is driven into the tree trunk, the injection start button 437 on the control panel cover 434 is pressed to start the injection program. When the injection program is started, the injection indicator light is on, the buzzer sounds, and the main control panel 431 controls the motor 81 to start through the terminal board 433 and the motor drive board 86. The motor 81 rotates forward and drives the driving screw 83 to rotate forward through the planetary transmission assembly 82, which is converted into linear motion by the driving screw nut 84, driving the piston rod 422 forward. The piston rod 422 pushes the liquid in the liquid storage chamber body 426 to the connecting chamber 427 through the through hole 428, and then passes through the water outlet check valve 424 (at this time, the water outlet check valve 424 is open and the water inlet check valve 425 is closed) and the high-pressure hose connector 35 into the second high-pressure hose 34, the first high-pressure hose 32 and the liquid inlet connector 31 to flow into the output rod 22 and the injection channel 10 in the injection needle 21, and finally the liquid flows out from the liquid outlet hole 211 and is injected into the tree. In the above process, the travel rod 923 moves forward with the piston rod 422. When the travel rod 923 approaches the second Hall sensor 922 (at this time, the injection pressure reaches the set value, and the set value in this embodiment is 12Mpa), the second Hall sensor 922 senses and drives the motor 81 to reverse. At this time, the buzzer sounds again, and the piston rod 422 finishes pushing the liquid and starts to pump the liquid. The motor 81 reverses and drives the piston rod 422 to retreat. The pressure generated when the piston rod 422 retreats draws the liquid in the liquid chamber into the liquid storage chamber body 426 through the water inlet hose 37 and the water inlet check valve 425 (at this time, the water inlet check valve 425 is open and the water outlet check valve 424 is closed). When the liquid is pumped, the travel rod 923 approaches the first Hall sensor 921, and the first Hall sensor 921 senses and drives the motor 81 to stop working, completing one injection cycle. At this time, the buzzer sounds for the last time, and the injection indicator light goes out;

[0042] After the injection is completed, the mode switching knob on the electric drill housing is switched to the electric drill mode, and the reversing switch is switched to the forward direction of the electric drill, and then the start-stop switch is pressed to start the electric drill, and the electric drill output shaft 11 rotates to drive the input gear 51 to rotate, and the input gear 51 drives the lead screw 53 to rotate forward through the output gear 52, and the lead screw nut 61 converts the rotational motion into linear motion, and the lead screw nut 61 drives the movable sleeve 62 to make a forward linear motion along the guide sleeve 71 to push the injection needle 21 out of the tree trunk. When the limiting protrusion 622 reaches the limiting portion 551 of the limiting screw 55, the movable sleeve 62 stops moving forward to complete the ejection action, the electric drill assembly 1 stops working, and the injection needle 21 completely withdraws from the tree trunk. At this time, the injection needle 21, the output rod 22, the liquid inlet assembly 3 and the electric drill output shaft 11 move backward together under the action of the elastic potential energy released by the spring 23 to achieve reset;

[0043] Switch the reversing switch to the reverse direction of the electric drill, then press and hold the start-stop switch to start the electric drill. The output shaft 11 of the electric drill rotates to drive the input gear 51 to rotate. The input gear 51 drives the lead screw 53 to reverse through the output gear 52. The lead screw nut 61 converts the rotational motion into linear motion. The lead screw nut 61 drives the movable sleeve 62 to make a backward linear motion along the guide sleeve 71. When the rear end of the movable sleeve 62 reaches the buffer gasket 725, the movable sleeve 62 is reset, the electric drill assembly 1 stops working, and the front part of the injection needle 21 re-exposes the front end of the movable sleeve 62.

[0044] The integrated drilling and injection machine of the present embodiment directly knocks the injection needle 21 into the tree trunk through the large thrust of the electric pick mode of the electric drill assembly 1, and the drilling can be completed in less than ten seconds. The maximum drilling depth can reach 46mm, and no wood chips are discharged during drilling, which will not pollute the environment. The drilling and injection are integrated, and there is no need to replace the needle 212 during injection. The brushless motor drives the piston rod 422 to inject the medicine into the tree trunk. The injection process only takes 1-3 minutes to complete. The medicine is injected into the tree trunk in a high-pressure manner, and the maximum injection pressure is 12Mpa (the injection pressure can be set according to the size of the tree, the hardness, and the thickness of the bark, and is set by controlling the operation of the motor 81 through the main control board 431). The injection capacity is 15ml at one time (the injection capacity can be set according to the actual injection needs, and is set by setting the size of the liquid storage chamber body 426). It directly penetrates into the tree with precise quantitative measurement, small amount of medicine, and no waste. The brushless motor and lithium battery 100 are light in weight and have low noise when working.

[0045] The present invention knocks the drilling assembly 2 forward with the output shaft of the electric drill in the electric pick mode of the electric drill assembly 1, so that the injection needle 21 is knocked forward into the tree to drill a hole. In this way, the injection needle 21 is directly knocked into the tree to drill a hole through the large thrust of the output shaft 11 of the electric drill, the drilling speed is fast, and the operation is simple. At the same time, the knocking and drilling method allows the needle head 212 of the injection needle 21 to use a small diameter needle head. When the injection needle 21 is withdrawn, the tree will slowly restore the injection hole, and the damage to the tree is small; the drilling assembly 2 and the high-voltage assembly 4 are connected through the liquid inlet assembly 3, and a connected injection channel 10 is provided in the liquid inlet assembly 3 and the drilling assembly 2. In this way, after the injection needle 21 is knocked into the tree to drill a hole, liquid medicine is injected into the injection channel 10 through the high-voltage assembly 4, and the liquid medicine flows out from the liquid outlet 211 into the tree to complete the injection of the liquid medicine, thereby realizing the integration of drilling and injection, and the drilling and injection operation is simple and the work efficiency is high.

[0046] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0047] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A drug injection device, characterized in that: The electric drill assembly (1) comprises an electric drill component (1), a punching component (2), a liquid inlet component (3) and a high-voltage component (4). The electric drill assembly (1) comprises an electric drill output shaft (11). The punching component (2) is connected to the electric drill output shaft (11) front to back. The punching component (2) comprises a drug injection needle (21) at the front end. The electric drill assembly (1) is provided with an electric pick mode. In the electric pick mode, the electric drill output shaft (11) knocks the punching component (2) forward so that the drug injection needle (21) knocks forward into the tree to punch a hole. The liquid inlet component (3) connects the punching component (2) and the high-voltage component (4). The liquid inlet component (3) and the punching component (2) are provided with connected drug injection channels (10). The high-voltage component (4) is used to inject drug liquid into the drug injection channel (10).

2. The drug injection device according to claim 1, characterized in that: The electric drill assembly (1) further comprises a transmission assembly (5) and an ejection assembly (6), wherein the transmission assembly (5) is connected to the electric drill output shaft (11) and the ejection assembly (6), and the electric drill assembly (1) is provided with an electric drill mode. In the electric drill mode, the electric drill output shaft (11) rotates and drives the ejection assembly (6) to move forward through the transmission assembly (5), and the ejection assembly (6) ejects the injection needle (21) from the tree by pressing the tree.

3. The drug injection device according to claim 2, characterized in that: The transmission assembly (5) comprises an input gear (51), an output gear (52) and a lead screw (53); the input gear (51) is fixedly sleeved on the output shaft (11) of the electric drill; the input gear (51) meshes with the output gear (52) and can move forward and backward relative to each other; the output gear (52) is fixedly connected to the lead screw (53); the ejection assembly (6) comprises a lead screw nut (61) and a movable sleeve (62); the lead screw nut (61) is threadedly connected to the lead screw (53) and is fixedly connected to the movable sleeve (62); the front portion of the injection needle (21) extends out of the movable sleeve (62); and the front end of the injection needle (21) is provided with a liquid outlet (211) connected to the injection channel (10).

4. The drug injection device according to claim 3, characterized in that: The invention also comprises a housing assembly (7), wherein the housing assembly (7) comprises a guide sleeve (71) arranged in the movable sleeve (62); the punching assembly (2) further comprises an output rod (22) and an elastic member (23) movably arranged in the guide sleeve (71); the front end of the output rod (22) is fixedly connected to the injection needle (21); the rear end of the output rod (22) contacts the front end of the electric drill output shaft (11); the elastic member (23) is arranged between the output rod (22) and the guide sleeve (71); the guide sleeve (71) is provided with a first avoidance groove (711); the movable sleeve (62) is provided with a second avoidance groove (623); one end of the liquid inlet assembly (3) passes through the first avoidance groove (711) and the second avoidance groove (623) to be connected to the output rod (22).

5. The drug injection device according to claim 4, characterized in that: The housing assembly (7) further comprises a connecting shell (72), wherein the connecting shell (72) is fixedly connected to the rear end of the guide sleeve (71), the electric drill output shaft (11), the input gear (51) and the output gear (52) are arranged in the connecting shell (72), the output gear (52) is rotatably arranged on the connecting shell (72), and the electric drill assembly (1) is fixed on the connecting shell (72).

6. The drug injection device according to claim 1, characterized in that: The high-pressure component (4) comprises a container (41) and an injection component (42). The container (41) is provided with a medicine liquid chamber (411) and an installation chamber (412) which are separated from each other. The injection component (42) is arranged in the installation chamber (412). The injection component (42) comprises a driving member (421), a piston rod (422), a liquid storage chamber, a water outlet check valve (424) and a water inlet check valve (425). The water outlet check valve (424) connects the liquid storage chamber and the liquid inlet component (3). The water inlet check valve (425) connects the liquid storage chamber and the medicine liquid chamber (411). The driving member (421) drives the piston rod (422) to reciprocate in the liquid storage chamber so as to press the medicine liquid in the liquid storage chamber into the liquid inlet component (3), or to draw the medicine liquid in the medicine liquid chamber (411) into the liquid storage chamber.

7. The drug injection device according to claim 6, characterized in that: The high-pressure component (4) further comprises a control component, the control component comprising a main control board (431) and a pressure detection component (432), the main control board (431) being connected to the pressure detection component (432) and the driving component (421), the liquid storage chamber comprising a liquid storage chamber body (426) and a connecting chamber (427), the piston rod (422) being arranged in the liquid storage chamber body (426), a through hole (428) being connected between the liquid storage chamber body (426) and the connecting chamber (427), the connecting chamber (427) being respectively connected to the water outlet check valve (424) and the water inlet check valve (425), and the pressure detection component (432) being arranged on the connecting chamber (427) or the through hole (428).

8. The drug injection device according to claim 7, characterized in that: The electric drill assembly (1) further comprises an electric drill body (12) connected to the electric drill output shaft (11), an electric drill connecting plate upper shell (13) and an electric drill connecting plate lower shell (14); the electric drill connecting plate upper shell (13) and the electric drill connecting plate lower shell (14) are fixedly connected; the front portion of the electric drill body (12) passes between the electric drill connecting plate upper shell (13) and the electric drill connecting plate lower shell (14); the main control board (431) is arranged in the electric drill connecting plate upper shell (13) or the electric drill connecting plate lower shell (14); the control assembly further comprises a terminal board (433) connected to the main control board (431); the terminal board (433) is arranged in the installation cavity (412); and the terminal board (433) is connected to the pressure detection component (432) and the driving component (421).

9. The drug injection device according to claim 6, characterized in that: The driving member (421) comprises a motor (81), a planetary transmission assembly (82), a driving screw (83) and a driving screw nut (84); the planetary transmission assembly (82) connects the motor (81) and the driving screw (83); the driving screw nut (84) is screwed onto the driving screw (83); one end of the piston rod (422) facing away from the liquid storage chamber is fixed to the driving screw nut (84); the piston rod (422) is provided with a third avoidance groove (85); and the driving screw (83) is partially arranged in the third avoidance groove (85).

10. The drug injection device according to claim 9, characterized in that: The injection assembly (42) also includes a sensing assembly (92), and the sensing assembly (92) includes a first sensor (921), a second sensor (922) and a travel rod (923) fixed on the driving screw nut (84), the first sensor (921) and the second sensor (922) are connected to the motor (81), and the travel rod (923) moves between the first sensor (921) and the second sensor (922), when the second sensor (922) senses that the travel rod (923) is approaching, the motor (81) changes direction, and when the first sensor (921) senses that the travel rod (923) is approaching, the motor (81) stops working.

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