Split type punching and medicine injection working head

Abstract

The utility model relates to the technical field of garden pest control appliances, and discloses a split type punching and pesticide injection working head which comprises a drill bit part and an injection part which are connected in a clamped mode. A connecting sleeve of the drill bit part is provided with a through clamping hole along the axis, one end of the connecting sleeve is provided with a clamping part, and the other end is connected with the drill bit through a drill bit locking mechanism; a barrel base of the injection part comprises a base body and a clamping rod, the clamping rod is fixed to one end of the base body, a liquid medicine channel is formed in the other end of the base body in the axial direction, a liquid inlet hole communicated with the liquid medicine channel is formed in the side wall of the base body, and an outlet of the liquid medicine channel is connected with an injection barrel through a sealing mechanism. The liquid medicine channel is communicated with the injection channel; the syringe is embedded in the through hole, and a clamping column matched with the clamping part is arranged at one end of the seat body. The drill bit part and the injection part of the working head are convenient and fast to mount and dismount, not only can a tree be drilled, but also liquid injection operation can be performed, the liquid injection efficiency is high, the operation is simple and convenient, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of garden pest and disease control equipment, and in particular to a split-type punching and injection head. Background Technology

[0002] The electric tree trunk drilling and injection machine is a machine used to drill holes in tree trunks and inject pesticide solutions. It is a forestry pest and disease control and maintenance equipment, and is widely used in the maintenance of trees in forests, gardens, roadside greening, homes, companies and other places.

[0003] However, most existing injection machines operate in steps, first using a drilling machine to make holes and then using an injection machine to inject the drug. This increases the equipment cost, complicates equipment operation, reduces injection efficiency, and increases the labor intensity of workers. Utility Model Content

[0004] This utility model provides a split-type drilling and injection head. The injection head can be adapted to drilling and injection needs of different hole diameters by changing the drill bit and injection cylinder. The snap-fit ​​method between the drill head and the injection part allows the head to both drill holes in trees and perform injection operations. The function conversion is convenient and quick, the injection efficiency is high, the operation is simple, and the labor intensity of the workers is reduced.

[0005] The above-mentioned objective of the utility model is achieved through the following technical solution:

[0006] A split-type drilling and injection head includes a drill head and an injection section, wherein the drill head and the injection section are engaged. The drill head includes a connecting sleeve, a drill locking mechanism, and a drill bit. The connecting sleeve has a through-hole along its axis, one end of the connecting sleeve has a locking part, and the other end of the connecting sleeve is connected to the drill bit through the drill locking mechanism. The injection section includes a cylinder seat, a sealing mechanism, and an injection cylinder. The cylinder seat includes a seat body and a locking rod. The locking rod is fixed to one end of the seat body, and the other end of the seat body has a liquid channel along its axis. The side wall of the seat body has an inlet hole communicating with the liquid channel. The outlet of the liquid channel is connected to the injection cylinder through the sealing mechanism. The injection cylinder has a through-channel injection channel, and the liquid channel communicates with the injection channel. The injection cylinder is embedded in the through hole, and the end of the seat body near the injection cylinder has a locking post adapted to the locking part.

[0007] In the aforementioned split-type drilling and injection head, the drill bit locking mechanism includes a ferrule and a limiting nut. The end of the connecting sleeve away from the locking part is provided with an external thread adapted to the limiting nut. The drill shank of the drill bit is locked inside the ferrule, and the outer side of the ferrule is locked in a ferrule hole on the side of the connecting sleeve away from the locking part. The end of the limiting nut away from the connecting sleeve is provided with a necked retaining ring, and the inner diameter of the retaining ring is adapted to the outer diameter of the drill bit.

[0008] In the aforementioned split-type drilling and injection head, the ferrule is U-shaped, the drill shank of the drill bit has two parallel ferrule surfaces in the middle, the inner side of the ferrule has a ferrule groove that fits with the corresponding ferrule surface, the ferrule hole is an oblong hole, and the outer side of the ferrule has an outer ferrule surface that fits with the ferrule hole.

[0009] The aforementioned split-type punching and injection head includes a locking part comprising two L-shaped slots symmetrically distributed along the axis of the connecting sleeve; and two locking posts symmetrically distributed along the axis of the cylinder base.

[0010] In the aforementioned split-type punching and injection head, the sealing mechanism includes a sealing ring, a convex ring, and a limiting sleeve. The outlet of the liquid channel is provided with a stepped groove, and the stepped groove has an internal thread. The sealing ring is embedded in the stepped groove. The diameter of the convex ring is larger than the diameter of the injection cylinder and is fixedly connected to one end of the injection cylinder. The limiting sleeve slides on the injection cylinder and abuts against the convex ring. The outer wall of the limiting sleeve has an external thread that matches the internal thread of the stepped groove.

[0011] In the aforementioned split-type punching and injection head, a limiting mechanism is provided between the stepped groove and the injection cylinder; the limiting mechanism includes a sliding groove opened axially in the stepped groove, a keyway provided on the outer edge of the convex ring, a flat key embedded in the keyway, and the flat key embedded in the sliding groove.

[0012] In the aforementioned split-type punching and injection head, one end of the limiting sleeve is fixedly connected to a chuck.

[0013] In the aforementioned split-type punching and injection head, the end of the base body away from the lever is provided with a wrench latch.

[0014] In the aforementioned split-type drilling and injection head, the diameter of the injection cylinder is the same as the diameter of the drill bit, and the outer wall of the injection cylinder is threaded.

[0015] In the aforementioned split-type punching and injection head, the front end of the injection cylinder is a square post, which is fitted and snapped into place with the plug for sealing the tree hole.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] This invention, by setting up a drill bit and injection unit that engage, enables rapid drilling and injection operations, eliminating the need for two separate devices for drug injection. Furthermore, the injection head can be adapted to different hole diameters and injection requirements by changing different drill bits and injection cylinders. This head can both drill holes in trees and perform injection operations, offering convenient and quick function switching, high injection efficiency, simple operation, and reduced labor intensity for workers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is an exploded structural diagram of the drill bit of this utility model;

[0020] Figure 3 This is an exploded structural diagram of the injection section of this utility model;

[0021] Figure 4 This is a schematic diagram of the injection section of this utility model.

[0022] The diagram shows: 1. Drill head; 11. Connecting sleeve; 111. Clamping hole; 112. Clamping part; 1121. L-shaped groove; 12. Drill bit locking mechanism; 121. Clamping sleeve; 1211. Clamping groove; 122. Limiting nut; 1221. Retaining ring; 13. Drill bit; 131. Clamping face; 2. Injection part; 21. Cylinder seat; 211. Sealing body; 2111. Liquid channel; 2112. Liquid inlet; 2113. Stepped groove; 2114. Wrench jaw; 2115. Clamping post; 212. Clamping rod; 22. Sealing mechanism; 221. Sealing ring; 222. Protruding ring; 223. Limiting sleeve; 2231. Chuck; 23. Injection cylinder; 231. Injection channel; 3. Limiting mechanism; 31. Slide groove; 32. Flat key. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0024] like Figure 1 As shown, a split-type drilling and injection head includes a drill head 1 and an injection section 2, with the drill head 1 and the injection section 2 being engaged.

[0025] When it is necessary to drill a hole in the tree, the drill head 1 is engaged with the injection part 2, and the drill head 1 is used to drill the hole. After drilling, the drill head 1 is removed from the injection part 2, and the medicine is injected into the hole in the tree through the injection part 2.

[0026] like Figure 2 As shown, the drill head 1 includes a connecting sleeve 11, a drill bit locking mechanism 12, and a drill bit 13. The connecting sleeve 11 has a through hole 111 along the axis, one end of the connecting sleeve 11 has a locking part 112, and the other end of the connecting sleeve 11 is connected to the drill bit 13 through the drill bit locking mechanism 12.

[0027] like Figure 3As shown, the injection unit 2 includes a base 21, a sealing mechanism 22, and an injection cylinder 23. The base 21 includes a base body 211 and a locking rod 212. The locking rod 212 is engaged with an electric drill, and the electric drill drives the locking rod 212 to rotate. The locking rod 212 is fixed to one end of the base body 211 and is arranged along the axial direction of the base body 211. The other end of the base body 211 is provided with a liquid channel 2111 along the axial direction. The side wall of the base body 211 is provided with an inlet hole 2112 that communicates with the liquid channel 2111. The outlet of the liquid channel 2111 is connected to the injection cylinder 23 through the sealing mechanism 22. The injection cylinder 23 is provided with a through injection channel 231 along the axial direction. The liquid channel 2111 communicates with the injection channel 231. The liquid passes through the inlet hole 2112, the liquid channel 2111, and the injection channel 231, and is finally discharged from the outlet of the injection channel 231. The base body 211 has a locking post 2115 at one end near the injection cylinder 23 that is adapted to and locked with the locking part 112.

[0028] like Figure 2 As shown, the drill bit locking mechanism 12 includes a ferrule 121 and a limiting nut 122. The end of the connecting sleeve 11 away from the locking part 112 is provided with an external thread that is adapted to the limiting nut 122. The drill shank of the drill bit 13 is locked in the ferrule 121. The outer side of the ferrule 121 is locked in the locking hole 111 at the end of the connecting sleeve 11 away from the locking part 112. The end of the limiting nut 122 away from the connecting sleeve 11 is provided with a necked retaining ring 1221. The inner diameter of the retaining ring 1221 is adapted to the outer diameter of the drill bit 13.

[0029] like Figure 2 As shown, the sleeve 121 of this embodiment is U-shaped in general. The drill shank of the drill bit 13 has two parallel card surfaces 131 in the middle. The inner side of the sleeve 121 has a card groove 1211 that fits with the corresponding card surface 131. The card hole 111 is an oblong hole. The outer side of the sleeve 121 has an outer card surface that matches the card hole 111.

[0030] In use, first, the slot 1211 of the ferrule 121 is engaged on the shank face 131 of the drill bit 13, and the ferrule 121 is inserted into the ferrule hole 111. Then, the limiting nut 122 is inserted from the front end of the drill bit 13 and screwed into the external thread of the connecting sleeve 11. At this time, the retaining ring 1221 limits the ferrule 121 to the ferrule hole 111, which can realize the locking and positioning of the connecting sleeve 11 and the drill bit 13.

[0031] like Figure 3As shown, the sealing mechanism 22 includes a sealing ring 221, a convex ring 222, and a limiting sleeve 223. A stepped groove 2113 is provided at the outlet of the liquid channel 2111. The stepped groove 2113 has an internal thread. The sealing ring 221 is embedded in the stepped groove 2113. The diameter of the convex ring 222 is larger than the diameter of the syringe 23 and is fixedly connected to one end of the syringe 23. The limiting sleeve 223 slides on the syringe 23 and abuts against the convex ring 222. The outer wall of the limiting sleeve 223 has an external thread that matches the internal thread of the stepped groove 2113.

[0032] Through the threaded connection between the limiting sleeve 223 and the stepped groove 2113, the limiting sleeve 223 can push the convex ring 222 to press the sealing ring 221. The other end of the sealing ring 221 abuts against the step of the stepped groove 2113, thereby ensuring the sealing of the connection between the liquid channel 2111 and the injection channel 231 when the cylinder seat 21 is connected to the injection cylinder 23, and preventing the liquid from overflowing.

[0033] To facilitate the rotation of the limiting sleeve 223, the end of the limiting sleeve 223 away from the convex ring 222 is fixedly connected to the chuck 2231, and the limiting sleeve 223 and the chuck 2231 are integrally formed. By engaging the chuck 2231 with a wrench, the limiting sleeve 223 can be rotated, thereby compressing and sealing the sealing ring 221.

[0034] like Figure 3 As shown, in order to ensure the smooth installation of the sealing mechanism 22, a wrench latch 2114 is provided at the end of the seat body 211 away from the latch rod 212. The smooth installation of the rotation limit sleeve 223 is ensured by the wrench engaging with the wrench latch 2114.

[0035] like Figure 3 As shown, in order to prevent the injection cylinder 23 from rotating relative to the stepped groove 2113 and affecting the sealing effect of the sealing mechanism 22, and to ensure that the injection cylinder 23 can rotate synchronously with the cylinder seat 21 when the electric drill drives the cylinder seat 21 to rotate, a limiting mechanism 3 is provided between the stepped groove 2113 and the injection cylinder 23.

[0036] The limiting mechanism 3 in this embodiment includes a sliding groove 31 opened in the stepped groove 2113 along the axial direction, a keyway provided on the outer edge of the convex ring 222, a flat key 32 embedded in the keyway, and the flat key 32 embedded in the sliding groove 31.

[0037] like Figure 1-3 As shown, the locking part 112 includes two L-shaped locking grooves 1121, which are symmetrically distributed along the axis of the connecting sleeve 11; the locking pins 2115 include two pins, which are symmetrically distributed along the axis of the cylinder seat 21. By locking the two locking pins 2115 on the cylinder seat 21 into the two corresponding L-shaped locking grooves 1121, the locking of the drill bit 1 and the injection part 2 can be realized.

[0038] When the drill bit 1 is engaged with the injection part 2, the injection cylinder 23 is inserted into the locking hole 111 of the connecting sleeve 11, so that one end of the cylinder seat 21 with the locking pin 2115 is engaged in the L-shaped locking groove 1121 of the connecting sleeve 11. The electric drill is engaged on the locking rod 212 and drives the locking rod 212 to rotate, which in turn drives the connecting sleeve 11 to rotate, and finally drives the drill bit 13 to rotate.

[0039] In order to prevent the medicine from flowing out of the tree hole during injection, in one embodiment, the diameter of the injection barrel 23 is the same as the diameter of the drill bit 13, and the outer wall of the injection barrel 23 is threaded.

[0040] The front end of the syringe 23 is a square post, which is fitted and snapped into place with the plug of the sealing tree hole.

[0041] When this utility model is in operation, first connect the drill head 1 to the injection part 2, then clamp the electric drill to the clamp rod 212, start the electric drill, and drill a hole in the tree through the drill bit 13.

[0042] After drilling is completed, separate the L-shaped groove 1121 on the drill head 1 from the retaining post 2115 on the injection section 2, remove the drill head 1, and then seal the liquid connector to the inlet hole 2112 on the cylinder base 21. Align the front end of the injection cylinder 23 with the hole just drilled on the tree and start the electric drill to screw the threads on the outer wall of the injection cylinder 23 into the hole on the tree, preventing the liquid from flowing out of the tree hole during injection. Start the liquid injection system to input the liquid from the inlet hole 2112 and enter the tree hole from the outlet of the injection channel 231, thus injecting the liquid into the tree. After injection, the electric drill rotates in the reverse direction to remove the injection cylinder 23 from the tree hole. Insert the plug into the tree hole and embed the square post at the front end of the injection cylinder 23 into the retaining groove of the plug. Start the electric drill again to drive the injection cylinder 23 to rotate, which in turn drives the square post to rotate. The square post drives the plug to rotate, so that the threads on the outer edge of the plug are screwed into the tree hole, thus sealing the plug to the tree hole.

[0043] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A split type punching and medicine injecting working head, characterized in that, The device includes a drill head and an injection unit, with the drill head engaging with the injection unit. The drill head includes a connecting sleeve, a drill bit locking mechanism, and a drill bit. The connecting sleeve has a through-hole along its axis, and one end of the connecting sleeve has a locking part. The other end of the connecting sleeve is connected to the drill bit through the drill bit locking mechanism. The injection unit includes a base, a sealing mechanism, and an injection cylinder. The base includes a base body and a locking rod. The locking rod is fixed to one end of the base body, and the other end of the base body has a liquid channel along its axis. The side wall of the base body has an inlet hole communicating with the liquid channel. The outlet of the liquid channel is connected to the injection cylinder through the sealing mechanism. The injection cylinder has a through-channel injection channel, and the liquid channel communicates with the injection channel. The injection cylinder is embedded in the through hole, and the end of the base body near the injection cylinder has a locking post adapted to the locking part.

2. The split type punching and medicine injecting work head according to claim 1, wherein, The drill bit locking mechanism includes a ferrule and a limiting nut. The end of the connecting sleeve away from the locking part is provided with an external thread that matches the limiting nut. The drill shank of the drill bit is locked inside the ferrule. The outer side of the ferrule is locked in a ferrule hole on the side of the connecting sleeve away from the locking part. The end of the limiting nut away from the connecting sleeve is provided with a necked retaining ring. The inner diameter of the retaining ring matches the outer diameter of the drill bit.

3. The split-type punching and injection head according to claim 2, characterized in that, The ferrule is U-shaped in general. The drill bit shank has two parallel ferrule surfaces in the middle. The inner side of the ferrule has a ferrule groove that fits with the corresponding ferrule surface. The ferrule hole is an oblong hole. The outer side of the ferrule has an outer ferrule surface that fits with the ferrule hole.

4. The split type punching and medicine injecting work head according to claim 2, characterized in that, The snap-fit ​​part includes two L-shaped slots, which are symmetrically distributed along the axis of the connecting sleeve; the snap-fit ​​post includes two posts, which are symmetrically distributed along the axis of the cylinder seat.

5. The split punch and medicine injecting working head according to claim 1, characterized in that, The sealing mechanism includes a sealing ring, a convex ring, and a limiting sleeve. The outlet of the liquid channel is provided with a stepped groove, and the stepped groove is provided with an internal thread. The sealing ring is embedded in the stepped groove. The diameter of the convex ring is larger than the diameter of the syringe and is fixedly connected to one end of the syringe. The limiting sleeve slides on the syringe and abuts against the convex ring. The outer wall of the limiting sleeve is provided with an external thread that matches the internal thread of the stepped groove.

6. The split punch and medicine injecting working head according to claim 5, characterized in that, A limiting mechanism is provided between the stepped groove and the injection cylinder; the limiting mechanism includes a sliding groove opened along the axial direction in the stepped groove, a keyway is provided on the outer edge of the convex ring, a flat key is embedded in the keyway, and the flat key is embedded in the sliding groove.

7. The split punch and medicine injecting working head according to claim 5, characterized in that, One end of the limiting sleeve is fixedly connected to a chuck.

8. The split punch and medicine injecting working head according to claim 1, characterized in that, The end of the seat body away from the lever is provided with a wrench slot.

9. The split punch and medicine injecting working head according to claim 1, characterized in that, The diameter of the injection cylinder is the same as the diameter of the drill bit, and the outer wall of the injection cylinder is threaded.

10. The split punch and medicine injecting working head according to claim 1, characterized in that, The front end of the syringe is a square post, which is fitted and snapped into place with the plug of the sealing tree hole.

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