CN203851534U - Trunk injection needle - Google Patents
Trunk injection needle Download PDFInfo
- Publication number
- CN203851534U CN203851534U CN201420270459.9U CN201420270459U CN203851534U CN 203851534 U CN203851534 U CN 203851534U CN 201420270459 U CN201420270459 U CN 201420270459U CN 203851534 U CN203851534 U CN 203851534U
- Authority
- CN
- China
- Prior art keywords
- syringe needle
- needle
- trunk
- drug discharging
- trunk injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Catching Or Destruction (AREA)
Abstract
The utility model provides a trunk injection needle. The resistance to the needle when the needle enters and exits from a trunk is low, the needle is less prone to bending and breaking, and the trunk cannot crack. The trunk injection needle comprises a conical front, a cylindrical middle and a cylindrical rear along an axis of the needle, and the external diameter of the rear is larger than those of the front and the middle. The front is provided with a chip guide hole extending along the axis of the needle, and the rear is provided with a pesticide inlet extending along the axis of the needle. The middle is provided with two pesticide and chip outlets extending radially, and the two pesticide and chip outlets are separated via a distribution plate. The rear end of the chip guide hole is communicated with both the pesticide and chip outlets on two sides of the distribution plate. The front end of the pesticide inlet is communicated with both the pesticide and chip outlets.
Description
Technical field
This technology relates to injects dispenser and the syringe needle that uses to trees.
Background technology
China is the country that forest resources lack, and due to long-term excessive felling, makes originally sharply to reduce with regard to the limited forest resources adopted.In recent decades, the continuous deterioration of environment, the rapid growth of injurious forest-insect, makes trees start large area infested, and trees survival rate reduces.Along with the rapid spread of the forestry pests such as the sap-sucking insect of trunk borer, flatheaded borer class, yellow spotted star longicorn beetle, Yang Gan clearwing pretty young woman, tool wax housing wall containment vessel.
There is following problem in conventional spray method prevention and elimination of disease and pests: in sprinkling process, agricultural chemicals can not effectively be attached on the trees that need to spray, remove insect, the unrestrained on the ground or with the wind drift of a large amount of agricultural chemicals and be subject to the impact of the environment such as weather, agricultural chemicals availability is low, contaminated environment.Because the existence of these reasons has been difficult to high-efficiency prevention and control with conventional spray method, the loss that damage by disease and insect brings increases increasingly.
Tree injection dispenser is one of infested effective ways of control trees, it is by input nutritive element, growth regulator, agricultural chemicals or other materials in tree body, rely on the transpiration pull of tree body self to be transported to each position of tree body, thereby reach prevention and elimination of disease and pests, enriched nutritive, rescue a kind of method of the objects such as nutritional deficiency disease, coordinate plant growth.The features such as trunk injection pesticide application technology has desinsection instant effect, and environmental pollution is little.
Inject the equipment of dispenser for trees and note dry machine, the design of the most key should the be dry needle head of note, the performance of syringe needle will directly affect injecting liquid drug to the effect in trunk.
Summary of the invention
It is little that the object of this technology is to provide a kind of resistance that syringe needle is subject to while passing in and out trunk, is difficult for bending or fractureing, and can not make the trunk injection syringe needle of trunk spalling.
The trunk injection syringe needle of this technology, is respectively conical forward portion, cylindrical central part, cylindrical rear along needle axis, and the external diameter at rear portion is greater than front portion and middle part; Front portion has the crump guiding hole extending along needle axis, has the medicine feeding hole extending along needle axis at rear portion; Middle part has two drug discharging openings that radially extend, and between two drug discharging openings, is separated by with flow distribution plate; The rear end of crump guiding hole all communicates with two drug discharging openings of flow distribution plate both sides; The front end of medicine feeding hole all communicates with two drug discharging openings.
The beneficial effect of this technology: inserting needle process is, by external force, syringe needle is pressed into trunk, syringe needle is in the process that is pressed into trunk, and the front end of conical forward portion cuts off lumber fibre, and lumber fibre is cut off the reel of rear formation and stays in crump guiding hole.Along with entering of syringe needle, after reel contacts with flow distribution plate, reel is split into two parts by flow distribution plate, and two parts wood chip that reel is split into enters respectively the drug discharging opening of flow distribution plate both sides, and extrude to both sides along drug discharging opening.Along with syringe needle further enters, the rear portion that the diameter of syringe needle is larger enters trunk, and the circular hole close contact that cuts out with the conical forward portion on trunk and formed by syringe needle extruding forms sealing.Then liquid is injected into two drug discharging openings by medicine feeding hole, and enter in trunk by drug discharging opening, can there is longitudinal transport with the moisture movement of tree body in liquid, in transportation, there is horizontal diffusion simultaneously, can either be from root to top tip transport of blades, spread, retain and occur metabolism, some medicine can be transported to root through phloem sieve tube with descending liquid again simultaneously, or directly shifts, transmits, spreads, retains and occur metabolism from xylem to phloem.Trunk injection pesticide application technology is exactly this mass transfer diffusivity of utilizing tree body, realizes medicine being uniformly distributed in tree body, thus the object that realizes prevention and elimination of disease and pests, rescues nutritional deficiency disease, regulates arboreal growth to grow.Because syringe needle rear portion contacts with circular hole sealing, prevent that liquid from leaking between syringe needle rear portion and circular hole.Along with syringe needle enters trunk, flow distribution plate has the effect radially outward pushing away along syringe needle to the wood chip in drug discharging opening, so, the other side who communicates with medicine feeding hole at drug discharging opening, wood chip is less or wood chip is more loose, liquid preferably enters trunk by this place, has reduced liquid and has entered the resistance in trunk.Owing to having flow distribution plate in this syringe needle, flow distribution plate can play to reel " incision " effect, makes reel be divided into two parts wood chip, has reduced syringe needle and has entered the resistance in trunk.This syringe needle has two drug discharging openings that are positioned at flow distribution plate both sides, syringe needle is in the process that enters trunk, reel and wood chip all produce to two drug discharging openings the active force that size is substantially equal, that is to say, the power that syringe needle both sides are subject to equates substantially, and like this, it is stressed that syringe needle can not be a side, prevent that the frictional force between syringe needle one side and trunk from causing syringe needle to be difficult to enter trunk very greatly, prevents that syringe needle from even fractureing because a side is stressed and bending simultaneously; Meanwhile, because the active force between trunk and syringe needle is mutual, this technology is because there will not be the stressed larger situation of syringe needle one side, also prevented syringe needle to the active force of trunk compared with large and cause trunk spalling.
When injection finishes, liquid flows in trunk by drug discharging opening.From trunk, all exited to syringe needle back stretching syringe needle by external force, an injection process finishes.Exit in process at syringe needle, because of syringe needle both sides stressed basically identical can be not amesiality, exit trunk and be more prone to, be also difficult for causing the bending of syringe needle or fracture.
Above-mentioned trunk injection syringe needle, the front end of flow distribution plate is blade part, and blade part has cutting edge, and backward, blade part increases at the thickness of radial direction the axis from cutting edge along syringe needle gradually.Sharp cutting edge can easierly cut reel, reduces syringe needle advance resistance.Best, cutting edge radially extends along syringe needle, and blade part, flow distribution plate and two drug discharging openings are all with cutting edge symmetry, and like this, syringe needle is stressed with needle axis symmetry, and syringe needle advance resistance is less, and possibility bending, that fracture is less.
Above-mentioned trunk injection syringe needle, the center external diameter that has drug discharging opening is less than anterior maximum outside diameter.Like this, on trunk, be greater than the external diameter of the syringe needle center at drug discharging opening place by the circular hole size after the extruding of conical forward portion periphery, have between the circular hole on periphery and the trunk at syringe needle middle part of drug discharging opening and there is radial clearance, therefore, can enter in this radial clearance from drug discharging opening liquid out, liquid all can fully be contacted with trunk in the circumferential direction of syringe needle, make liquid can enter into more fully each position of trunk, improved trunk and absorbed liquid speed.
Above-mentioned trunk injection syringe needle is tapering transition portion between middle part and rear portion.Tapering transition portion has reduced syringe needle and has entered the resistance of trunk, has also strengthened the sealing property between circular hole.
Above-mentioned trunk injection syringe needle, the anterior front end of syringe needle is taper cutting portion, and between taper cutting portion bus and axis, angle is 25-35 °, and taper cutting portion and crump guiding hole hole wall intersection form endless knife.Like this, what sharp endless knife can be more prone to cuts off (instead of by push syringe needle is sent in trunk) by xylem fibre, and meanwhile, the angle between taper cutting portion bus and the axis of 25-35 °, has also ensured the intensity of taper cutting portion.
Above-mentioned trunk injection syringe needle, between the bus of conical forward portion and axis, angle is a=13-15 °; Tapering transition portion is identical with the tapering of conical forward portion; Angle b=28-32 ° between the two sides of blade part.Specific conical forward portion, tapering transition portion, blade part make syringe needle have some strength, when preventing that bending from fractureing, reduced syringe needle advance resistance.
Above-mentioned trunk injection syringe needle, drug discharging opening is mounting hole, its width and crump guiding hole equal diameters.Mounting hole is more easily processed.
Above-mentioned trunk injection syringe needle, is provided with the annular groove for placing o type circle in rear portion periphery.In annular groove, place after o type circle, syringe needle can contact with the sealing of injecting medical liquid parts, uses convenient.
Brief description of the drawings
Fig. 1 is the front view of embodiment 1;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A profile of Fig. 1;
Fig. 4 is the front view of embodiment 2;
Fig. 5 is the schematic diagram of embodiment 2 while entering trunk;
Fig. 6 is the B-B profile of Fig. 5.
Embodiment
Embodiment 1
Referring to the trunk injection syringe needle shown in Fig. 1-3, be respectively conical forward portion 1, cylindrical central part 2, tapering transition portion 3, cylindrical rear 4 along needle axis.The maximum outside diameter of conical forward portion is identical with the external diameter of cylindrical central part.The external diameter at rear portion 4 is greater than the external diameter of cylindrical central part, is tapering transition portion 3 between cylindrical central part and cylindrical rear.
Anterior 1 has the crump guiding hole 11 extending along needle axis, has in tapering transition portion 3 and rear portion 4 medicine feeding hole 41 extending along needle axis.
On middle part, have two kidney-shaped drug discharging openings 21,22 that radially extend, the width of kidney-shaped drug discharging opening and crump guiding hole equal diameters.
Between two drug discharging openings, be separated by with flow distribution plate 23.The front end of flow distribution plate is blade part 24, and blade part has cutting edge 25.Cutting edge is along the radially extension of syringe needle.Blade part, flow distribution plate and two drug discharging openings are all with cutting edge symmetry.
Backward, the distance between the two sides 26,27 of blade part increases (blade part increases gradually at the thickness of radial direction) to axis from cutting edge along syringe needle gradually.Angle b=30 ° between the two sides of blade part.
The rear end of crump guiding hole all communicates with the front end of two drug discharging openings of flow distribution plate both sides; The front end of medicine feeding hole all communicates with the rear end of two drug discharging openings.
Between the bus of conical forward portion and axis, angle is a=14 °; The front end of conical forward portion is taper cutting portion 12, angle c=30 ° between taper cutting portion bus and axis, and taper cutting portion and crump guiding hole hole wall intersection form endless knife 13.
Tapering transition portion is identical with the tapering of conical forward portion.
In cylindrical rear periphery, prominent ring 42 is set, on prominent ring, has the annular groove 43 for placing o type circle.It is wide outside and narrow inside trapezoidal that the cross section of annular groove 43 becomes.
Embodiment 2
Referring to the trunk injection syringe needle shown in Fig. 4-6, embodiment 2 is with the difference of embodiment 1: center 28 external diameters that have drug discharging opening are less than the external diameter of the other parts at middle part, are also less than the procephalic maximum outside diameter of pin.Like this, this syringe needle enters after trunk 5, on trunk, be greater than the external diameter of the syringe needle center at drug discharging opening place by circular hole 51 sizes after conical forward portion periphery extruding, have between the circular hole 51 on periphery and the trunk at syringe needle middle part of drug discharging opening and there is radial clearance 6.Other structure is identical with embodiment 1.。
The needle head structure of the present embodiment 1,2 is hollow cylindrical, the front portion of syringe needle is annular blade, middle front part side opening drug discharging opening, drug discharging opening act as drug and go out bits, postmedian structure is cylindrical seal part, the face of cylinder that tapering transition portion and rear portion diameter major part are secondary seal, rear portion and needle holder coupling part, be provided with seal with O ring annular groove.Advance and retreat pin process is, by external force, syringe needle is pressed into trunk, syringe needle is in the process that is pressed into trunk, by hole circular blade above, lumber fibre is cut off, the reel that lumber fibre is cut off rear formation is retained in (again ejected the stylish reel of trunk injection next time) in crump guiding hole.Along with entering of syringe needle, after reel contacts with flow distribution plate, reel is split into two parts by flow distribution plate, and two parts wood chip that reel is split into enters respectively the drug discharging opening of flow distribution plate both sides, and extrude to both sides along drug discharging opening.Along with syringe needle further enters, the tapering transition portion that the diameter of syringe needle is larger enters trunk, and the circular hole close contact that cuts out with the conical forward portion on trunk and formed by syringe needle extruding forms sealing.At this moment, stop pushing syringe needle, start injection, liquid flows in trunk by medicine feeding hole, drug discharging opening.Injection finishes, and is all exited to syringe needle back stretching syringe needle by external force from trunk, and an injection process finishes.Be that amount of compression is syringe needle wall thickness, has therefore dwindled widely amount of compression, is not easy to cause lumber fibre spalling, thereby has ensured sealing effectiveness by syringe needle outer surface extruding trunk owing to adopting this syringe needle inserting needle, agricultural chemicals consumption is few, and injection effect is good.
This syringe needle is reasonable in design, the frictional force while having reduced syringe needle inserting needle between syringe needle and timber, and not only inserting needle is easy, and can not cause damage to syringe needle and tree.And intensity, the rigidity property of syringe needle are better, syringe needle is not prone to the phenomenon of bending, fracture in inserting needle process.This technology is a kind of from moving back bits syringe needle, and inserting needle, the withdraw of the needle are easy, quick; Simple in structure, easy to process, economy and durability.
Claims (9)
1. trunk injection syringe needle, is respectively conical forward portion, cylindrical central part, cylindrical rear along needle axis, and the external diameter at rear portion is greater than front portion and middle part; Front portion has the crump guiding hole extending along needle axis, has the medicine feeding hole extending along needle axis at rear portion; It is characterized in that: middle part has two drug discharging openings that radially extend, and between two drug discharging openings, is separated by with flow distribution plate; The rear end of crump guiding hole all communicates with two drug discharging openings of flow distribution plate both sides; The front end of medicine feeding hole all communicates with two drug discharging openings.
2. trunk injection syringe needle as claimed in claim 1, is characterized in that: the front end of flow distribution plate is blade part, and blade part has cutting edge, and backward, blade part increases at the thickness of radial direction the axis from cutting edge along syringe needle gradually.
3. trunk injection syringe needle as claimed in claim 2, is characterized in that: cutting edge radially extends along syringe needle, and blade part, flow distribution plate and two drug discharging openings are all with cutting edge symmetry.
4. the trunk injection syringe needle as described in claim 1,2 or 3, is characterized in that: the center external diameter that has drug discharging opening is less than anterior maximum outside diameter.
5. trunk injection syringe needle as claimed in claim 2 or claim 3, is characterized in that: between middle part and rear portion, be tapering transition portion.
6. trunk injection syringe needle as claimed in claim 5, is characterized in that: the anterior front end of syringe needle is taper cutting portion, and between taper cutting portion bus and axis, angle is 25-35 °, and taper cutting portion and crump guiding hole hole wall intersection form endless knife.
7. trunk injection syringe needle as claimed in claim 6, is characterized in that: between the bus of conical forward portion and axis, angle is a=13-15 °; Tapering transition portion is identical with the tapering of conical forward portion; Angle b=28-32 ° between the two sides of blade part.
8. trunk injection syringe needle as claimed in claim 7, is characterized in that: drug discharging opening is mounting hole, its width and crump guiding hole equal diameters.
9. the trunk injection syringe needle as described in claim 1,2 or 3, is characterized in that: be provided with the annular groove for placing o type circle in rear portion periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270459.9U CN203851534U (en) | 2014-05-23 | 2014-05-23 | Trunk injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270459.9U CN203851534U (en) | 2014-05-23 | 2014-05-23 | Trunk injection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203851534U true CN203851534U (en) | 2014-10-01 |
Family
ID=51601422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420270459.9U Expired - Fee Related CN203851534U (en) | 2014-05-23 | 2014-05-23 | Trunk injection needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203851534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103960072A (en) * | 2014-05-23 | 2014-08-06 | 南京林业大学 | Syringe needle for trunk injection |
-
2014
- 2014-05-23 CN CN201420270459.9U patent/CN203851534U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103960072A (en) * | 2014-05-23 | 2014-08-06 | 南京林业大学 | Syringe needle for trunk injection |
| CN103960072B (en) * | 2014-05-23 | 2015-08-05 | 南京林业大学 | Trunk injection syringe needle |
| WO2015176691A1 (en) * | 2014-05-23 | 2015-11-26 | 南京林业大学 | Tree trunk injection needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103960072B (en) | Trunk injection syringe needle | |
| US8671614B1 (en) | Injection tip for use with an injector for injecting liquid chemical into a tree | |
| CN108243774A (en) | A kind of trunk injector for pesticide injection trunk of suiting the medicine to the illness | |
| CN204579258U (en) | A kind of micropressure injection device | |
| CN203851534U (en) | Trunk injection needle | |
| CN204888114U (en) | Spiral infiltration trees are with infusion syringe needle | |
| CN204560361U (en) | A kind of tree injection syringe needle | |
| CN105123308B (en) | Coaxial push-in type tree injection apparatus | |
| CN204888111U (en) | Syringe needle is used with infusion to high infiltration trees | |
| CN212138505U (en) | Syringe for preventing and treating trunk borer | |
| CN204907287U (en) | Liquid that inclines out top income formula trees are with infusion insert head | |
| CN204634485U (en) | A kind of booster-type leakproof trees drop conveying plant | |
| CN201742760U (en) | Integrated tree chemical injection gun | |
| CN105052580B (en) | Spiral permeates trees infusion niidl | |
| KR101207285B1 (en) | Injector of herbicide into inside of trunk of kudzu vine | |
| CN212232815U (en) | Monochamus alternatus repellent sprinkler | |
| CN204217538U (en) | One planting fruit-trees transfusion instrument | |
| CN105009969B (en) | Side-out top-in infusion insertion head for trees | |
| CN202551815U (en) | Tree root fertilizer device | |
| CN217509535U (en) | Special drill bit for trunk injection agent for tree body | |
| CN106472253A (en) | Planting fruit trees automatic irrigation system | |
| CN204888113U (en) | Ejector pin formula trees injection device | |
| CN204837212U (en) | A drill bit for drilling of tree injection nutrient solution | |
| CN211671656U (en) | Trunk injector | |
| CN2669572Y (en) | Locking pressure trunk microinjector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20150523 |
|
| EXPY | Termination of patent right or utility model |