Garden tree trunk borer prevention and control drilling machine

Abstract

The invention relates to a garden tree trunk borer control drilling machine, and relates to the field of agricultural pest control, the garden tree trunk borer control drilling machine comprises an electric drill body, a pesticide injection mechanism is installed on the electric drill body, the pesticide injection mechanism comprises a charge bar installed on the electric drill body and used for containing pesticide liquid, and one end of the charge bar is open and slidably connected with a piston; the other end of the material bar is fixedly connected with a discharging pipe, the medicine injection mechanism further comprises a driving rod which abuts against the side wall, away from the discharging pipe, of the piston, the driving rod is connected with a driving piece which pushes the driving rod in the direction close to the discharging pipe, and the electric drill body is further provided with an adjusting mechanism which adjusts the driving piece to abut against the middle of the piston. The device has the advantages of being small in scale, light in weight, convenient to carry, diversified in function and application form, low in energy consumption, beneficial to saving energy and low in maintenance and manufacturing cost, and many parts can be easily disassembled and replaced.

Description

Technical Field

[0001] The present application relates to the field of garden pest control, and in particular to a garden tree trunk borer control drill. Background Art

[0002] In the gardening industry, pest control generally uses sprayers to spray tree trunks. Since the larvae and eggs of pests are hidden in the wood or under the cortex, the liquid medicine is not easy to take effect and the control effect is very poor. In addition, a large amount of pesticides will remain on the trunks when spraying, resulting in serious waste of liquid medicine, large pollution area and affecting the ecological environment. Therefore, under conditions that are not suitable for spraying, holes can be drilled in the trunks, and then the liquid medicine can be injected into the holes, so as to achieve the purpose of preventing and controlling pests and diseases and protecting trees.

[0003] The existing Chinese patent with announcement number CN218353431U discloses a perforating and injecting device for agricultural pest control, including an injector body, a rectangular shell is fixedly provided on one side of the injector body through a connecting piece, a handle moving groove is horizontally opened to the right at the middle position of the bottom of the rectangular shell, a cover is covered on the right side of the rectangular shell, and the four corners of the cover are threadedly fixed to the rectangular shell by fixing bolts, a through hole is opened in the middle of the left side of the rectangular shell, a stainless steel motor cover is movably provided on the right side inside the rectangular shell, a motor is fixedly installed horizontally to the left on the inner side of the stainless steel motor cover, and a drill bit is fixedly installed on the transmission end of the motor, and an external threaded pipe is fixedly connected to the left side of the rectangular shell located on the left side of the through hole.

[0004] However, the existing perforating and injecting device is relatively large in size and inconvenient to carry and move. Summary of the invention

[0005] In order to facilitate carrying and moving, the present application provides a drilling rig for controlling garden tree trunk-boring pests.

[0006] The present application provides a garden tree trunk pest control drilling rig that adopts the following technical solution: A drill for controlling trunk-boring pests of garden trees comprises an electric drill body, on which a medicine injection mechanism is installed, the medicine injection mechanism comprises a material rod installed on the electric drill body for containing medicine liquid, one end of the material rod is open and slidably connected with a piston, and the other end of the material rod is fixedly connected with a discharge pipe, the medicine injection mechanism also comprises a driving rod which abuts against a side wall of the piston away from the discharge pipe, a driving member is connected to the driving rod for pushing the driving rod toward the discharge pipe, and an adjusting mechanism is also installed on the electric drill body to adjust the driving member to abut against the middle part of the piston.

[0007] By adopting the above technical solution, the tree is drilled with the electric drill body, and then the driving rod is pushed toward the direction close to the discharge pipe by the driving member, and the driving rod pushes the piston to gradually move toward the direction close to the discharge pipe. At this time, the medicine mud in the material rod gradually separates from the material rod along the discharge pipe and is injected into the hole of the tree, so that the prevention and control of the tree can be completed. The medicine injection mechanism is directly installed on the electric drill body, and the medicine injection mechanism is relatively small, so that the medicine injection mechanism is easy to carry and move with the electric drill body.

[0008] Preferably, the driving member includes two supporting blocks fixedly connected to the electric drill body, one of the supporting blocks is fixedly connected to a driving motor, a driving gear is coaxially fixed to the output shaft of the driving motor, the driving rod is a driving rack meshing with the driving gear, the driving rack passes through each supporting block and is slidably connected to each supporting block, and one end of the driving rack is used to resist a side of the piston away from the discharge pipe.

[0009] By adopting the above technical solution, the drive motor is started, and the output shaft of the drive motor drives the drive gear to rotate, and the drive gear rotates to drive the drive rack to move in the direction close to the material rod until the drive rack hits the piston. At this time, the drive rack continues to move, pushing the piston to move in the direction close to the discharge pipe, and the medicine mud in the material rod is separated from the material rod along the discharge port, which is simple and convenient to operate.

[0010] Preferably, a control module is fixedly connected to the electric drill body, and a battery is detachably connected to the electric drill body, the battery supplies power to the control module and the drive motor, and the control module is electrically connected to the drive motor.

[0011] By adopting the above technical solution, the opening and closing of the drive motor is controlled by the control module, and the forward and reverse rotation of the drive motor is controlled at the same time.

[0012] Preferably, the discharge pipe is threadedly connected to a connecting pipe, the outer wall of one end of the connecting pipe away from the discharge pipe is provided with a plurality of convex rings, and the outer side of one end of the connecting pipe away from the discharge pipe is sleeved with a feeding hose.

[0013] By adopting the above technical solution, the feeding hose is inserted into the hole of the tree, and then the feeding hose is withdrawn while injecting the mud. The connecting pipe and the feeding hose are disassembled, and feeding hoses of different sizes are replaced to adapt to holes of different diameters drilled by the electric drill body.

[0014] Preferably, a limit block is fixedly connected to the electric drill body, the material rod is placed between the limit block and the driving rod, and when the driving rod pushes the piston in a direction close to the material rod, the material rod is fixed between the driving rod and the limit block.

[0015] By adopting the above technical solution, the material rod is placed between the limit block and the driving rod. When the driving rod moves toward the material rod, the driving rod pushes the material rod to be gradually clamped between the driving rod and the limit block, so that the material rod can be easily installed. When the medicine mud in the material rod is used up, it is convenient to replace a new material rod.

[0016] Preferably, the adjusting mechanism includes an adjusting plate fixedly connected to one end of the driving rod close to the material rod, a sliding groove is provided on a surface of the adjusting plate close to the piston, an adjusting rod is slidably connected in the sliding groove, a guide groove is provided on a side of the piston close to the adjusting rod, the guide groove extends from the edge of the piston to the center of the piston and gradually inclines toward the direction close to the discharge pipe, one end of the adjusting rod extends toward the direction close to the piston and is provided with an inclined surface inclined in the same direction as the bottom surface of the guide groove, the sliding groove and the guide groove are arranged in the same direction, a connecting spring is provided in the sliding groove, one end of the connecting spring is fixedly connected to the adjusting rod, and the other end is fixedly connected to a side wall of the guide groove away from the adjusting rod.

[0017] By adopting the above technical solution, when the driving rod drives the adjusting plate and the adjusting rod to gradually move toward the direction close to the piston until the inclined surface on the adjusting rod hits the bottom wall of the guide groove, the driving rod continues to move, causing the adjusting rod to gradually slide along the bottom surface of the guide groove toward the direction close to the center of the piston until the adjusting rod hits the side wall of the guide groove located at the center of the piston, and at this time the adjusting rod hits the center of the piston. This facilitates the adjusting rod to better push the piston to move, and reduces the situation where the adjusting rod hits one end of the piston and causes the medicine mud to leak. When replacing material rods of different diameters, it is only necessary to keep the guide groove and the sliding groove in the same direction during the installation of the material rod, so that the adjusting rod can move to the middle of pistons of different diameters, thereby better pushing the piston.

[0018] Preferably, a limiting mechanism is fixedly connected to the electric drill body, and the limiting mechanism includes a track rod fixedly connected to the electric drill body, a mounting block is slidably connected to the track rod, a plastic arc ring is fixedly connected to the upper surface of the mounting block, and the material rod is placed in the arc ring and fits the inner wall of the arc ring.

[0019] By adopting the above technical solution, the setting of the arc ring further limits the material rod, thereby preventing the material rod from escaping from between the driving rod and the limiting block.

[0020] Preferably, a connecting groove 1 is provided on a side of the mounting block close to the track rod, a connecting groove 2 is provided on a side of the mounting block away from the track rod, a connecting groove 3 connected to the connecting groove 2 is provided on one side wall of the connecting groove 1, a limiting rack is slidably connected in the connecting groove 1, a regulating rack is slidably connected in the connecting groove 2, a limiting gear is rotatably connected in the connecting groove 3, and both the limiting rack and the regulating rack are meshed with the limiting gear, a limiting spring is provided in the connecting groove 1, one end of the limiting spring abuts against the bottom wall of the connecting groove 1, and the other end abuts against the limiting rack, one end of the limiting rack is pressed against the track rod by the elastic force of the limiting spring, and the end of the regulating rack away from the track rod passes through an arc ring; when the material rod contacts the inner wall of the arc ring, the material rod pushes the regulating rack down, thereby driving the limiting rack to rise and disengage from the contact with the track rod.

[0021] By adopting the above technical solution, the material rod is placed in the arc ring, and the material rod pushes the regulating rack downward to completely enter the second connection groove. The movement of the regulating rack drives the limit gear to rotate, thereby driving the limit rack to rise and disengage from the track rod. At this time, the arc rod releases the lock between the track rod. When the driving rod pushes material rods of different lengths toward the direction of the limit block, the arc rod can move with the material rod, so that the arc rod can limit material rods of different lengths.

[0022] Preferably, the side surfaces of the two support blocks facing away from each other are fixedly connected with travel switches, the end of the driving rack away from the material rod is fixedly connected with a tail cap, and the adjusting mechanism is installed at the end of the rack close to the material rod. When the tail cap contacts the adjacent travel switch, the control module controls the driving motor to stop running, and when the adjusting mechanism contacts the adjacent travel switch, the control module also controls the driving motor to stop running.

[0023] By adopting the above technical solution and providing two travel switches, the driving rack is prevented from being separated from the two supporting blocks during the reciprocating motion.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The injection mechanism is directly installed on the electric drill body, and the injection mechanism is relatively small, which is convenient for carrying and moving the injection mechanism with the electric drill body; 2. Easy to replace new rods of different sizes; 3. The arc rod can limit the position of rods of different lengths and diameters BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the overall structure of the drilling rig according to an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of an adjustment mechanism according to an embodiment of the present application.

[0026] Figure 3 It is a schematic diagram of the structure of the feeding hose and the connecting pipe according to an embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the structure of the arc ring according to an embodiment of the present application.

[0028] Figure 5 It is a manifestation Figure 4 Enlarged view of point A in the middle.

[0029] Explanation of the accompanying drawings: 1. electric drill body; 11. limit block; 2. injection mechanism; 21. material rod; 22. piston; 221. guide groove; 23. discharge pipe; 24. driving rod; 241. driving rack; 25. driving member; 251. support block; 252. driving motor; 253. driving gear; 26. feeding hose; 27. connecting pipe; 3. adjusting mechanism; 31. adjusting plate; 311. sliding groove; 32. adjusting rod; 33. connecting spring; 4. control module; 5. battery; 6. tail cap; 7. limit mechanism; 71. track rod; 72. mounting block; 721. connecting groove one; 722. connecting groove two; 723. connecting groove three; 73. arc ring; 74. limit rack; 75. regulating rack; 76. limit gear; 77. limit spring. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0031] The present application embodiment discloses a garden tree trunk borer pest control drilling machine. Figure 1 and Figure 2 The pest control drill comprises an electric drill body 1. A medicine injection mechanism 2 is mounted on the electric drill body 1. The medicine injection mechanism 2 comprises a material rod 21. The material rod 21 is used to hold medicine mud. One end of the material rod 21 is open and is provided with a slidable piston 22. The other end of the material rod 21 is fixedly connected to a discharge pipe 23. In order to push the piston 22, the medicine injection mechanism 2 further comprises a driving rod 24. The driving rod 24 is used to abut against a side wall of the piston 22 away from the discharge pipe 23.

[0032] A driving member 25 is connected to the driving rod 24, and the function of the driving member 25 is to push or pull the driving rod 24 toward or away from the discharge pipe 23. In order to ensure that the driving rod 24 can accurately contact the center of the piston 22, an adjustment mechanism 3 is also specially installed on the electric drill body 1.

[0033] The driving rod 24 includes two support blocks 251, and the two support blocks 251 are fixedly connected to the upper surface of the electric drill body 1. Among them, a driving motor 252 is fixedly connected to the support block 251 away from the material rod 21. A driving gear 253 is coaxially fixed on the output shaft of the driving motor 252. The driving rod 24 is a driving rack 241, and the driving rack 241 is meshed with the driving gear 253. The driving rack 241 passes through each support block 251 and is slidably connected to each support block 251. In this way, when the driving motor 252 is started, the driving motor 252 will drive the driving rack 241 to move through the driving gear 253, thereby pushing the piston 22.

[0034] The electric drill body 1 is fixedly connected to the limit block 11, and the material rod 21 is placed between the limit block 11 and the driving rod 24. When the driving rod 24 moves toward the direction close to the material rod 21, the driving rod 24 gradually presses the material rod 21 against the limit block 11, thereby clamping the material rod 21 between the limit block 11 and the driving rod 24. In this way, it is convenient to install and replace material rods 21 of different diameters on the electric drill body 1.

[0035] Reference Figure 2 and Figure 3 In order to better spray the inside of the hole on the tree trunk, a feeding hose 26 for inserting into the hole in the tree trunk is connected to the discharge pipe 23. The discharge pipe 23 is provided with an external thread, and one end of the feeding hose 26 is connected to a connecting pipe 27, and the connecting pipe 27 is provided with an internal thread, and the connecting pipe 27 is threadedly connected to the discharge pipe 23. The outer side of the end of the connecting pipe 27 away from the discharge pipe 23 is provided with a plurality of convex rings, and one end of the feeding hose 26 is tightly sleeved on the end of the connecting pipe 27 provided with the convex ring.

[0036] Reference Figure 1 and Figure 2 In addition, a control module 4 is fixedly mounted on the electric drill body 1, and a battery 5 is detachably connected to the electric drill body 1. The battery 5 mainly supplies power to the control module 4 and the drive motor 252, and the control module 4 is electrically connected to the drive motor 252 to control the working state of the drive motor 252.

[0037] Reference Figure 1 , Figure 2 and Figure 3 In actual operation, the gardener can first use the electric drill body 1 to drill holes in the tree, insert the feeding hose 26 into the hole, and then start the driving motor 252 through the control module 4, so that the driving rack 241 pushes the piston 22 to gradually approach the discharge pipe 23. In this process, the medicinal mud in the material rod 21 will be injected into the hole of the tree through the discharge pipe 23 and the feeding hose 26, thereby achieving the purpose of prevention and control.

[0038] Reference Figure 2 and Figure 3 The adjusting mechanism 3 includes an adjusting plate 31 and an adjusting rod 32. The adjusting plate 31 is fixedly connected to one end of the driving rod 24 close to the material rod 21. A vertical sliding groove 311 is provided on one surface of the adjusting plate 31 close to the piston 22. One end of the adjusting rod 32 is inserted into the sliding groove 311 and is slidably connected to the sliding groove 311. The sliding groove 311 is a dovetail groove, and one end of the adjusting rod 32 inserted into the sliding groove 311 is a dovetail block adapted to the sliding groove 311.

[0039] A guide groove 221 is provided on one side of the piston 22 near the adjusting rod 32. The guide groove 221 extends from the edge of the piston 22 to the center of the piston 22, and the bottom wall of the guide groove 221 gradually tilts toward the direction close to the discharge pipe 23 along the direction close to the center of the piston 22. The guide groove 221 is vertically arranged. An inclined surface inclined in the same direction as the bottom surface of the guide groove 221 is provided at one end of the adjusting rod 32.

[0040] When the driving rod 24 drives the adjusting plate 31 and the adjusting rod 32 to move toward the piston 22, the inclined surface on the adjusting rod 32 will contact the bottom wall of the guide groove 221, and gradually slide toward the center of the piston 22 along the guide groove 221. In order to ensure that the adjusting rod 32 can slide stably and contact the center of the piston 22 after sliding, a connecting spring 33 is provided in the sliding groove 311. One end of the connecting spring 33 is fixedly connected to the adjusting rod 32, and the other end is fixedly connected to a side wall of the guide groove 221 away from the adjusting rod 32.

[0041] In this way, when the diameters of the material rods 21 installed on the electric drill body 1 are different, the adjustment mechanism 3 can ensure that the driving rod 24 can always hit the center of the piston 22 of different diameters when pushing the piston 22, thereby preventing the medicinal mud from leaking out of the gap between the piston 22 and the discharge pipe 23.

[0042] The two support blocks 251 are fixedly connected to the side facing away from each other with a travel switch, and the end of the driving rack 241 away from the material rod 21 is fixedly connected with a tail cap 6, the tail cap 6 corresponds to the travel switch on the adjacent support block 251, and the adjustment plate 31 corresponds to the travel switch on the adjacent support block 251, and each travel switch is electrically connected to the control module 4. When the tail cap 6 or the adjustment plate 31 contacts the corresponding travel switch, the control module 4 receives the signal from the travel switch, and then controls the driving motor 252 to turn off, thereby reducing the occurrence of excessive movement of the driving rack 241.

[0043] Reference Figure 2 In order to prevent the material rod 21 from being separated from the driving rod 24 and the limiting block 11, a limiting mechanism 7 is connected to the electric drill body 1. Figure 4 and Figure 5The limiting mechanism 7 includes a track rod 71 fixedly connected to the upper surface of the electric drill body 1, a mounting block 72 is slidably connected to the track rod 71, and an arc ring 73 is fixedly connected to the upper surface of the mounting block 72. The arc ring 73 has plasticity to facilitate fitting of material rods 21 of different diameters.

[0044] The bottom surface of the mounting block 72 is provided with a connection groove 1 721, in which a limited rack 74 is slidably connected. The upper surface of the mounting block 72 is provided with a connection groove 2 722, in which a regulating rack 75 is slidably connected. A connection groove 3 723 connected to the connection groove 2 722 is provided on one side wall of the connection groove 1 721, in which a limited gear 76 is rotatably connected. The regulating rack 75 and the limited rack 74 are both meshed with the limited gear 76. A limit spring 77 is provided in the connection groove 1 721, one end of the limit spring 77 is fixedly connected to the bottom wall of the connection groove 1 721, and the other end is fixedly connected to the limit rack 74. The limit rack 74 is pressed against the upper surface of the track rod 71 by the elastic force of the limit spring 77. The upper end of the regulating rack 75 passes through the arc ring 73 and protrudes from the arc ring 73.

[0045] During the installation of the material rod 21, the material rod 21 is placed in the arc ring 73 and fits the inside of the arc ring 73. At this time, the material rod 21 presses the regulating rack 75 downward, and the regulating rack 75 moves through the limiting gear 76 to drive the limiting rack 74 upward to separate from the track rod 71. At this time, the arc ring 73 is unlocked. Move the arc ring 73 again, refer to Figure 1 , until one end of the material rod 21 on the arc ring 73 abuts against the limiting block 11, so that material rods 21 of different lengths can be installed on the arc ring 73, thereby limiting the material rods 21 of different lengths.

[0046] The implementation principle of the drilling machine for controlling borer pests in garden trees in the embodiment of the present application is as follows: the motor body is started to drill holes in the tree, and then the feeding hose 26 is inserted into the hole of the tree. The control module 4 is adjusted to start the driving motor 252, and the driving motor 252 drives the driving gear 253 to rotate and then drives the driving rack 241 to move in the direction close to the piston 22. The piston 22 moves in the direction close to the discharge pipe 23, thereby pushing the medicine mud in the material rod 21 into the hole along the feeding hose 26. As the medicine mud enters the hole, the feeding hose 26 is pulled to gradually withdraw from the hole, so as to facilitate the injection of medicine mud into the hole.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drill for controlling borer pests in garden trees, comprising an electric drill body (1), characterized in that: The electric drill body (1) is provided with a medicine injection mechanism (2), the medicine injection mechanism (2) comprising a material rod (21) mounted on the electric drill body (1) for containing medicine mud, one end of the material rod (21) being open and slidably connected to a piston (22), the other end of the material rod (21) being fixedly connected to a discharge pipe (23), the medicine injection mechanism (2) further comprising a driving rod (24) abutting against a side wall of the piston (22) away from the discharge pipe (23), the driving rod (24) being connected with a driving member (25) for pushing the driving rod (24) in a direction close to the discharge pipe (23), and an adjusting mechanism (3) for adjusting the driving member (25) to abut against the middle of the piston (22) is also mounted on the electric drill body (1).

2. A garden tree trunk pest control drilling rig according to claim 1, characterized in that: The driving member (25) comprises two supporting blocks (251) fixedly connected to the electric drill body (1), wherein a driving motor (252) is fixedly connected to one of the supporting blocks (251), a driving gear (253) is coaxially fixed to the output shaft of the driving motor (252), the driving rod (24) is a driving rack (241) meshed with the driving gear (253), the driving rack (241) passes through each supporting block (251) and is slidably connected to each supporting block (251), and one end of the driving rack (241) is used to abut against a side of the piston (22) facing away from the discharge pipe (23).

3. A garden tree trunk pest control drilling rig according to claim 2, characterized in that: A control module (4) is fixedly connected to the electric drill body (1), and a battery (5) is detachably connected to the electric drill body (1), the battery (5) supplies power to the control module (4) and the drive motor (252), and the control module (4) is electrically connected to the drive motor (252).

4. A garden tree trunk pest control drilling rig according to claim 1, characterized in that: The discharge pipe (23) is threadedly connected to a connecting pipe (27), an outer wall of an end of the connecting pipe (27) away from the discharge pipe (23) is provided with a plurality of convex rings, and an outer side of an end of the connecting pipe (27) away from the discharge pipe (23) is sleeved with a feeding hose (26).

5. The garden tree trunk pest control drilling rig according to claim 1, characterized in that: The electric drill body (1) is fixedly connected to a limit block (11), the material rod (21) is placed between the limit block (11) and a driving rod (24), and when the driving rod (24) pushes the piston (22) in a direction close to the material rod (21), the material rod (21) is fixed between the driving rod (24) and the limit block (11).

6. A garden tree trunk-boring pest control drilling rig according to claim 5, characterized in that: The adjusting mechanism (3) comprises an adjusting plate (31) fixedly connected to an end of the driving rod (24) close to the material rod (21); a sliding groove (311) is provided on a surface of the adjusting plate (31) close to the piston (22); an adjusting rod (32) is slidably connected in the sliding groove (311); a guide groove (221) is provided on a side surface of the piston (22) close to the adjusting rod (32); the guide groove (221) extends from an edge of the piston (22) to the center of the piston (22) and The adjusting rod (32) is gradually inclined in a direction close to the discharge pipe (23); one end of the adjusting rod (32) extends in a direction close to the piston (22) and is provided with an inclined surface inclined in the same direction as the bottom surface of the guide groove (221); the sliding groove (311) and the guide groove (221) are arranged in the same direction; a connecting spring (33) is provided in the sliding groove (311); one end of the connecting spring (33) is fixedly connected to the adjusting rod (32); and the other end is fixedly connected to a side wall of the guide groove (221) away from the adjusting rod (32).

7. A garden tree trunk pest control drilling machine according to claim 6, characterized in that: The electric drill body (1) is fixedly connected to a limiting mechanism (7), the limiting mechanism (7) comprising a track rod (71) fixedly connected to the electric drill body (1), a mounting block (72) slidably connected to the track rod (71), a plastic arc ring (73) fixedly connected to the upper surface of the mounting block (72), the material rod (21) being placed in the arc ring (73) and fitting against the inner wall of the arc ring (73).

8. A garden tree trunk pest control drilling machine according to claim 7, characterized in that: A first connection groove (721) is formed on a side of the mounting block (72) close to the track rod (71), a second connection groove (722) is formed on a side of the mounting block (72) away from the track rod (71), a third connection groove (723) connected to the second connection groove (722) is formed on a side wall of the first connection groove (721), a limit gear (74) is slidably connected in the first connection groove (721), a regulating gear (75) is slidably connected in the second connection groove (722), a limit gear (76) is rotatably connected in the third connection groove (723), and both the limit gear (74) and the regulating gear (75) are The limiting gear (76) is meshed with the limiting gear (76), and a limiting spring (77) is provided in the connecting groove (721). One end of the limiting spring (77) contacts the bottom wall of the connecting groove (721), and the other end contacts the limiting rack (74). One end of the limiting rack (74) is pressed against the track rod (71) by the elastic force of the limiting spring (77), and the end of the regulating rack (75) away from the track rod (71) passes through the arc ring (73); when the material rod (21) contacts the inner wall of the arc ring (73), the material rod (21) pushes the regulating rack (75) down, thereby driving the limiting rack (74) to rise and disengage from the track rod (71).

9. A garden tree trunk-boring pest control drilling rig according to claim 3, characterized in that: A travel switch is fixedly connected to the side surfaces of the two support blocks (251) facing away from each other; a tail cap (6) is fixedly connected to the end of the drive rack (241) away from the material rod (21); the adjustment mechanism (3) is installed at the end of the rack close to the material rod (21); when the tail cap (6) contacts the adjacent travel switch, the control module (4) controls the drive motor (252) to stop running; when the adjustment mechanism (3) contacts the adjacent travel switch, the control module (4) also controls the drive motor (252) to stop running.

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