WO2015176691A1 - 树干注射用针头 - Google Patents

树干注射用针头 Download PDF

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Publication number
WO2015176691A1
WO2015176691A1 PCT/CN2015/083621 CN2015083621W WO2015176691A1 WO 2015176691 A1 WO2015176691 A1 WO 2015176691A1 CN 2015083621 W CN2015083621 W CN 2015083621W WO 2015176691 A1 WO2015176691 A1 WO 2015176691A1
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WIPO (PCT)
Prior art keywords
needle
trunk
hole
tapered
injecting
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PCT/CN2015/083621
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English (en)
French (fr)
Inventor
商庆清
尹佟明
孙志武
巨云为
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南京林业大学
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Application filed by 南京林业大学 filed Critical 南京林业大学
Priority to US15/106,260 priority Critical patent/US10212893B2/en
Publication of WO2015176691A1 publication Critical patent/WO2015176691A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G29/00—Root feeders; Injecting fertilisers into the roots

Definitions

  • the present technology relates to a needle for use in injecting and applying a tree.
  • China is a country with a lack of forest resources. Due to long-term excessive harvesting, the limited forest resources that were originally limited have been drastically reduced. In recent decades, the environment has been deteriorating, and the rapid growth of forest pests has caused trees to start to grow in large areas and the survival rate of trees has decreased. With the rapid spread of forestry pests such as cockroach pests, geyser worms, yellow spotted hornbills, dried stalks, and sucking pests with wax shell wall protective shells.
  • forestry pests such as cockroach pests, geyser worms, yellow spotted hornbills, dried stalks, and sucking pests with wax shell wall protective shells.
  • Conventional spraying methods have the following problems in controlling pests and diseases: during spraying, pesticides cannot be effectively attached to trees that need to be sprayed, pests are removed, and a large amount of pesticides are scattered on the ground or drifting with the wind and affected by weather and other environments. The pesticide utilization rate is low and the environment is polluted. Because of these reasons, it has been difficult to effectively control by conventional spraying methods, and the losses caused by pests and diseases are increasing.
  • Injecting and applying trees is one of the effective methods to control tree worms. It is used to import nutrients, growth regulators, pesticides or other substances into the tree, and it is transported to various parts of the tree by the transpiration of the tree itself. A method to achieve the purpose of controlling pests and diseases, strengthening nutrition, correcting deficiencies, and regulating plant growth. Trunk injection technology has the characteristics of quick insecticidal effect and low environmental pollution.
  • the design of the needle of the dryer For the equipment for injection and application of trees, ie, the dryer, the most important thing is the design of the needle of the dryer. The performance of the needle will directly affect the effect of the injection of the liquid into the trunk.
  • the purpose of the present technology is to provide a needle for injecting a tree trunk which is less resistant to the needle when entering or leaving the trunk, is not easily bent or broken, and does not cause the trunk to burst.
  • the trunk injection needle of the present technology has a tapered front portion, a cylindrical middle portion, and a cylindrical rear portion along the needle axis, and the outer diameter of the rear portion is larger than the front portion and the middle portion; the front portion has a guide extending along the axis of the needle.
  • a chip hole having a drug-feeding hole extending along the axis of the needle at the rear portion; two radially extending drug-discharging holes are formed in the middle portion, and the two drug-discharging holes are separated by a splitter plate; The rear end of the hole is connected with the two medicine discharging holes on both sides of the diverter plate; the front end of the medicine feeding hole and the two medicine discharging chip holes are connected.
  • the beneficial effect of the technology is that the needle insertion process is to press the needle into the trunk by an external force, and the needle is pressed into the trunk, the front end of the tapered front cuts the wood fiber, and the wood core formed after the wood fiber is cut remains in the guide. Inside the chip hole. After the needle enters, the wood core is in contact with the diverter plate, and the diverter plate splits the wood core into two parts, and the two pieces of wood chips which are split into the wood core respectively enter the medicine discharge chip holes on both sides of the diverter plate, and are discharged along the medicine. The chip holes are extruded to both sides.
  • the larger diameter of the back of the needle enters the trunk and is in close contact with the tapered front portion of the trunk and is tightly contacted by the needle to form a dense hole. seal.
  • the liquid medicine is injected into the two medicine discharge chip holes through the medicine injection hole, and enters the trunk through the medicine discharge chip hole, and the liquid medicine is longitudinally transported with the water movement of the tree body, and horizontally occurs during transportation. Diffusion can transport, diffuse, retain and metabolize from the root to the tip of the leaf.
  • some drugs can be transported to the root through the phloem screen, or directly transferred, transported, spread, retained and occurred from the xylem to the phloem. metabolism.
  • the technique of injecting and applying the trunk is to use the material of the tree to transmit and diffuse, and to achieve uniform distribution of the drug in the tree, thereby achieving the purpose of controlling pests and diseases, correcting the deficiency and regulating the growth and development of the tree. Since the rear portion of the needle is in sealing contact with the round hole, the leakage of the liquid medicine from the rear portion of the needle to the round hole is prevented. As the needle enters the trunk, the diverter has the effect of pushing the wood chips in the discharge hole of the medicine along the radial direction of the needle. Therefore, the other side of the medicine outlet that communicates with the medicine hole has less wood chips or wood chips. Loose, more suitable for the liquid to enter the trunk through this, reducing the resistance of the liquid into the trunk.
  • the splitter plate can "cut" the wood core, so that the wood core is divided into two parts of wood chips, reducing the resistance of the needle into the trunk.
  • the needle has two medicine discharging holes on both sides of the diverter plate.
  • the forces on both sides of the needle are basically equal, so that the needle is not only stressed on one side, preventing the friction between the needle side and the trunk from being large, which makes the needle difficult to enter the trunk, and prevents the needle from being affected by one side.
  • the force is bent or even broken; at the same time, because the force between the trunk and the needle is mutual, the technique does not cause a large force on the side of the needle, and also prevents the needle from exerting a large force on the trunk.
  • the trunk is cracked.
  • the liquid flows into the trunk through the discharge hole.
  • the needle is pulled back by an external force until the needle is completely withdrawn from the trunk, and the injection process ends.
  • the force on both sides of the needle is basically the same and does not deviate to one side, it is easier to withdraw from the trunk, and it is not easy to cause the needle to bend or break.
  • the front end of the shunt plate is a blade portion, and the blade portion has a cutting edge, and the thickness of the blade portion in the radial direction gradually increases from the cutting edge toward the axis of the needle.
  • the sharp edge makes it easier to cut the core and reduce the forward resistance of the needle.
  • the cutting edge extends radially along the needle, and the blade portion, the diverter plate and the two dispensing holes are symmetric with respect to the cutting edge, so that the needle is symmetrical with the needle axis, the needle forward resistance is smaller, bending and breaking The possibility is even smaller.
  • the outer diameter of the middle portion of the medicine ejection hole is smaller than the maximum outer diameter of the front portion.
  • the size of the round hole on the trunk which is pressed by the outer periphery of the tapered front portion is larger than the outer diameter of the middle portion of the needle where the medicine discharge hole is located, and the outer circumference of the middle portion of the needle having the medicine discharge hole and the round hole on the trunk.
  • the above-mentioned needle for injecting a trunk has a tapered transition portion between the middle portion and the rear portion.
  • the tapered transition reduces the resistance of the needle into the trunk and also enhances the sealing performance with the round hole.
  • the front end of the needle is a tapered cutting portion, and the angle between the busbar of the tapered cutting portion and the axis is 25-35°, and the intersection of the tapered cutting portion and the wall of the guide hole forms a ring shape. Knife. In this way, the sharp circular knife can cut the wood fiber more easily (rather than pressing the needle into the trunk), and the angle between the 25-35° cone-cutting busbar and the axis is also guaranteed.
  • the strength of the tapered cutting portion is also guaranteed.
  • the specific tapered front portion, the tapered transition portion, and the blade portion allow the needle to have a certain strength, prevent the bending from being broken, and reduce the needle advance resistance.
  • the medicine discharging chip hole is a waist hole, and the width thereof is equal to the diameter of the chip guiding hole. Waist holes are easier to machine.
  • the trunk injection needle described above is provided with a ring groove for placing an o-ring on the outer periphery of the rear portion. After the o-ring is placed in the ring groove, the needle can be sealed and contacted with the injection liquid component, which is more convenient to use.
  • Figure 1 is a front elevational view of Embodiment 1;
  • Figure 2 is a plan view of Figure 1;
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 4 is a front elevational view of Embodiment 2;
  • Figure 5 is a schematic view of the embodiment 2 when entering the trunk
  • Fig. 6 is a cross-sectional view taken along line B-B of Fig. 5;
  • a tapered front portion 1 along the axis of the needle are a tapered front portion 1, a cylindrical central portion 2, a tapered transition portion 3, and a cylindrical rear portion 4.
  • the maximum outer diameter of the tapered front portion is the same as the outer diameter of the cylindrical middle portion.
  • the outer diameter of the rear portion 4 is larger than the outer diameter of the cylindrical middle portion, and the tapered middle portion is a tapered transition portion 3 between the cylindrical middle portion and the cylindrical rear portion.
  • the front portion 1 has a chip guide hole 11 extending along the axis of the needle, and the conical transition portion 3 and the rear portion 4 have a medicine inlet hole 41 extending along the axis of the needle.
  • waist-shaped medicine discharge holes 21, 22 there are two radially extending waist-shaped medicine discharge holes 21, 22, and the width of the waist-shaped medicine discharge chip holes is equal to the diameter of the guide chip holes.
  • the two drug delivery chip holes are separated by a splitter plate 23.
  • the front end of the splitter plate is a blade portion 24, and the blade portion has a cutting edge 25.
  • the cutting edge extends along the radial direction of the needle.
  • the blade portion, the splitter plate and the two dispensing holes are symmetric with the cutting edge.
  • the distance between the side faces 26, 27 of the blade portion gradually increases (the thickness of the blade portion gradually increases in the radial direction).
  • the rear end of the chip hole is connected with the front ends of the two medicine discharging holes on both sides of the diverter plate; the front end of the medicine feeding hole and the rear end of the two medicine discharging chip holes are connected.
  • the annular cutter 13 is formed at the intersection of the shaped cutting portion and the wall of the guide vane.
  • the tapered transition is the same as the taper of the tapered front.
  • a collar 42 is disposed on the outer circumference of the cylindrical rear portion, and a ring groove 43 for placing the o-ring is opened on the collar.
  • the cross section of the ring groove 43 has a trapezoidal shape with a narrow outer width.
  • the difference between the embodiment 2 and the embodiment 1 is that the outer diameter of the central portion 28 having the drug ejection orifice is smaller than the outer diameter of the other portion of the middle portion, and is smaller than the needle front.
  • the maximum outer diameter of the part is larger than the outer diameter of the middle portion of the needle where the medicine discharge hole is located, and the middle portion of the needle having the medicine outlet hole.
  • the outer circumference has a circumferential gap 6 between the circular holes 51 on the trunk.
  • the other structure is the same as that of the first embodiment. .
  • the needle structure of the first embodiment and the second embodiment is a hollow cylindrical shape, and the front part of the needle head is a circular annular cutting edge, and the side of the middle front portion is opened with a medicine chipping hole, and the function of the medicine discharging chip hole is medicine discharging and chip discharging,
  • the rear structure is a cylindrical sealing portion, and the tapered transition portion and the larger portion of the rear diameter are cylindrical surfaces of the secondary seal, and the rear portion is connected with the needle holder, and an O-ring sealing ring groove is provided. The process of advancing and retracting is to press the needle into the trunk by an external force.
  • the wood fiber is cut by the annular hole of the front hole, and the wood core formed after the wood fiber is cut remains in the guide hole (next time)
  • the new wood core will be ejected when the trunk is injected again).
  • the wood core is in contact with the diverter plate, and the diverter plate splits the wood core into two parts, and the two pieces of wood chips which are split into the wood core respectively enter the medicine discharge chip holes on both sides of the diverter plate, and are discharged along the medicine.
  • the chip holes are extruded to both sides.
  • the tapered transition portion of the needle having a larger diameter enters the trunk and is in close contact with the tapered front portion of the trunk and is in close contact with the circular hole formed by the needle to form a seal.
  • the needle is stopped and the injection is started, and the liquid medicine flows into the trunk through the medicine inlet hole and the medicine discharge chip hole.
  • the needle is pulled back by an external force until the needle is completely withdrawn from the trunk, and the injection process ends. Since the needle is pressed by the outer surface of the needle, the extrusion amount is the wall thickness of the needle, so the amount of extrusion is greatly reduced, and the wood fiber is not easily caused to burst, thereby ensuring the sealing effect and less pesticide consumption. The injection effect is good.
  • the needle is designed to reduce the friction between the needle and the wood when the needle is inserted, which is not only easy to insert but also does not cause damage to the needle and the tree. Moreover, the strength and rigidity of the needle are good, and the needle is less prone to bending and breaking during the needle insertion process.
  • the technology is a self-removing needle, and the needle and the needle are simple and quick; the structure is simple, the processing is convenient, and the economy is durable.

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Botany (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Catching Or Destruction (AREA)

Abstract

一种树干注射用针头，沿着针头轴线分别是锥形前部（1）、圆柱形中部（2）、圆柱形后部（4），后部的外径大于前部和中部；前部开有沿着针头轴线延伸的导屑孔（11），在后部开有沿着针头轴线延伸的进药孔（41）；中部开有两个沿径向延伸的出药出屑孔（21，22），两个出药出屑孔（21，22）之间以分流板（23）相隔；导屑孔（11）的后端与分流板（23）两侧的两个出药出屑孔（21，22）均相连通；进药孔（41）的前端与两个出药出屑孔（21，22）均连通。该针头受到的阻力小，不易发生弯曲或折断，不会使得树干胀裂。

Description

树干注射用针头 技术领域
本技术涉及对树木进行注射施药而使用的针头。
背景技术
我国是一个森林资源缺乏的国家，由于长期过量的采伐，使得原本就有限的可采森林资源急剧减少。近几十年来，环境的不断恶化，森林害虫的快速增长，使得树木开始大面积生虫，树木存活率降低。随着蛀干害虫、吉丁虫类、黄斑星天牛、杨干透翅娥、具蜡壳体壁保护壳的吸汁害虫等林业害虫的迅速蔓延。
常规的喷洒方法防治病虫害存在以下问题：在喷洒过程中，农药不能有效的附着在需要喷施的树木上，除掉害虫，大量的农药洒落在地面上或随风飘移并且受天气等环境的影响，农药利用率低、污染环境。因为这些原因的存在用常规喷洒方法已难以高效防治，病虫害带来的损失日趋增大。
树木注射施药是防治树木生虫的有效方法之一，它是通过向树体内输入营养元素、生长调节剂、农药或其他物质，依靠树体自身的蒸腾拉力运送到树体的各个部位，从而达到防治病虫害、强化营养、矫治缺素症、调节植物生长等目的的一种方法。树干注射施药技术具有杀虫见效快，对环境污染小等特点。
对于树木进行注射施药的设备即注干机来说，最为关键的应该是注干机针头的设计，针头的性能将直接影响药液注射到树干中的效果。
发明内容
本技术的目的是提供一种进出树干时针头受到的阻力小，不易发生弯曲或折断，不会使得树干胀裂的树干注射用针头。
本技术的树干注射用针头，沿着针头轴线分别是锥形前部、圆柱形中部、圆柱形后部，后部的外径大于前部和中部；前部开有沿着针头轴线延伸的导屑孔，在后部开有沿着针头轴线延伸的进药孔；中部开有两个沿径向延伸的出药出屑孔，两个出药出屑孔之间以分流板相隔；导屑孔的后端与分流板两侧的两个出药出屑孔均相通；进药孔的前端与两个出药出屑孔均相通。
本技术的有益效果：进针过程是由外力将针头压入树干，针头在压入树干的过程中，锥形前部的前端将木材纤维切断，木材纤维被切断后形成的木芯留在导屑孔内。随着针头的进入，木芯与分流板接触后，分流板将木芯分裂成两部分，木芯被分裂成的两部分木屑分别进入分流板两侧的出药出屑孔，并沿出药出屑孔向两侧挤出。随着针头进一步进入，针头的直径较大的后部进入树干，与树干上的锥形前部切出并被针头挤压形成的圆孔紧密接触形成密 封。然后药液通过进药孔被注入两个出药出屑孔，并通过出药出屑孔进入树干内，药液会随树体的水分运动而发生纵向运输,同时在运输过程中发生横向的扩散,既能够从根部向顶梢叶片运输、扩散、存留和发生代谢,同时有些药物又能够随下行液经韧皮部筛管转运到根部,或直接从木质部向韧皮部转移、传输、扩散、存留和发生代谢。树干注射施药技术就是利用树体的这种物质传输扩散能力,实现药物在树体内的均匀分布,从而实现防治病虫害、矫治缺素症、调节树木生长发育的目的。由于针头后部与圆孔密封接触，防止了药液从针头后部与圆孔之间泄漏。随着针头进入树干，分流板对出药出屑孔内的木屑具有沿针头径向向外推的作用，所以，在出药出屑孔与进药孔相通的对方，木屑较少或者木屑较疏松，更适宜药液通过该处进入树干，减小了药液进入树干内的阻力。由于本针头中具有分流板，分流板能够对木芯起到“切开”作用，使得木芯被分成两部分木屑，减小了针头进入树干内的阻力。本针头有两个位于分流板两侧的出药出屑孔，针头在进入树干的过程中，木芯和木屑对两个出药出屑孔均产生大小基本相等的作用力，也就是说，针头两侧受到的力基本是相等的，这样，针头不会只是一侧受力，防止了针头一侧与树干之间的摩擦力很大而造成针头难于进入树干，同时防止针头因一侧受力而弯曲甚至折断；同时，因树干与针头之间的作用力是相互的，本技术因不会出现针头一侧受力较大的情形，也防止了针头对树干的作用力较大而造成树干胀裂。
当注药结束，药液通过出药出屑孔流入树干里。由外力将针头往回拉直至针头从树干中全部退出，则一次注药过程结束。在针头退出过程中，因针头两侧受力基本一致而不会偏向一侧，退出树干更加容易，也不易造成针头的弯曲或折断。
上述的树干注射用针头，分流板的前端为刀刃部，刀刃部具有刃口，从刃口沿着针头的轴线向后，刀刃部在径向方向的厚度逐渐增大。锋利的刃口能够更容易的将木芯切开，减小针头前进阻力。最好，刃口沿着针头径向延伸，刀刃部、分流板和两个出药出屑孔均以刃口对称，这样，针头受力以针头轴线对称，针头前进阻力更小，弯曲、折断的可能性更小。
上述的树干注射用针头，开有出药出屑孔的中部处外径小于前部的最大外径。这样，树干上被锥形前部外周挤压后的圆孔尺寸要大于出药出屑孔所在的针头中部处的外径，具有出药出屑孔的针头中部的外周与树干上的圆孔之间具有环向间隙，因此，从出药出屑孔出来的药液能够进入该环向间隙内，使得药液在针头的周向方向均能够与树干充分接触，使得药液能够更加充分的进入到树干的各个部位，提高了树干吸收药液速度。
上述的树干注射用针头，中部与后部之间是锥形过渡部。锥形过渡部减小了针头进入树干的阻力，也增强了与圆孔之间的密封性能。
上述的树干注射用针头，针头的前部前端为锥形切削部，锥形切削部母线与轴线的之间夹角为25-35°，锥形切削部与导屑孔孔壁相交处形成环形刀。这样，锋利的环形刀能够更加容易的将木纤维切断(而不是靠挤压把针头送进树干内)，同时，25-35°的锥形切削部母线与轴线之间的夹角，也保证了锥形切削部的强度。
上述的树干注射用针头，锥形前部的母线与轴线的之间夹角为a＝13-15°；锥形过渡部与锥形前部的锥度相同；刀刃部的两侧面之间的夹角b＝28-32°。特定的锥形前部、锥形过渡部、刀刃部使得针头具有一定强度、防止弯曲折断的同时，减小了针头前进阻力。
上述的树干注射用针头，出药出屑孔为腰形孔，其宽度与导屑孔直径相等。腰形孔更容易加工。
上述的树干注射用针头，在后部外周设置有用于放置o型圈的环槽。环槽内放置o型圈后，针头能够与注药液零部件密封接触，使用更加方便。
附图说明
图1是实施例1的主视图；
图2是图1的俯视图；
图3是图1的A-A剖面图；
图4是实施例2的主视图；
图5是实施例2进入树干时的示意图；
图6是图5的B-B剖面图。
具体实施方式
实施例1
参见图1-3所示的树干注射用针头，沿着针头轴线分别是锥形前部1、圆柱形中部2、锥形过渡部3、圆柱形后部4。锥形前部的最大外径和圆柱形中部的外径相同。后部4的外径大于圆柱形中部的外径,圆柱形中部与圆柱形后部之间是锥形过渡部3。
前部1开有沿着针头轴线延伸的导屑孔11，在锥形过渡部3和后部4开有沿着针头轴线延伸的进药孔41。
在中部上开有两个沿径向延伸的腰形出药出屑孔21、22，腰形出药出屑孔的宽度与导屑孔直径相等。
两个出药出屑孔之间以分流板23相隔。分流板的前端为刀刃部24，刀刃部具有刃口25。刃口沿着针头的径向延伸。刀刃部、分流板和两个出药出屑孔均以刃口对称。
从刃口沿着针头的轴线向后，刀刃部的两侧面26、27之间的距离逐渐增大(刀刃部在径向方向的厚度逐渐增大)。刀刃部的两侧面之间的夹角b＝30°。
导屑孔的后端与分流板两侧的两个出药出屑孔的前端均相通；进药孔的前端与两个出药出屑孔的后端均相通。
锥形前部的母线与轴线的之间夹角为a＝14°；锥形前部的前端为锥形切削部12，锥形切削部母线与轴线的之间夹角c＝30°，锥形切削部与导屑孔孔壁相交处形成环形刀13。
锥形过渡部与锥形前部的锥度相同。
在圆柱形后部外周设置突环42，突环上开有用于放置o型圈的环槽43。环槽43的截面成外宽内窄的梯形。
实施例2
参见图4-6所示的树干注射用针头，实施例2与实施例1的区别在于：开有出药出屑孔的中部处28外径小于中部的其它部分的外径，也小于针头前部的最大外径。这样，该针头进入树干5后，树干上被锥形前部外周挤压后的圆孔51尺寸要大于出药出屑孔所在的针头中部处的外径，具有出药出屑孔的针头中部的外周与树干上的圆孔51之间具有环向间隙6。其它结构与实施例1相同。。
本实施例1、2的针头结构为中空圆柱形，针头的前部为圆环形刀刃，中前部侧面开出药出屑孔，出药出屑孔的作用为出药和出屑，中后部结构为圆柱形密封部分，锥形过渡部和后部直径较大部分为二次密封的圆柱面，后部与针头座连接部分，设有O形圈密封环槽。进退针过程是由外力将针头压入树干，针头在压入树干的过程中，由前面的孔环形刀刃将木材纤维切断，木材纤维被切断后形成的木芯保留在导屑孔内(下次再次对树干注射时新的木芯将其顶出)。随着针头的进入，木芯与分流板接触后，分流板将木芯分裂成两部分，木芯被分裂成的两部分木屑分别进入分流板两侧的出药出屑孔，并沿出药出屑孔向两侧挤出。随着针头进一步进入，针头的直径较大的锥形过渡部进入树干，与树干上的锥形前部切出并被针头挤压形成的圆孔紧密接触形成密封。这时，停止挤压针头，开始注药，则药液通过进药孔、出药出屑孔流入树干里。注药结束，由外力将针头往回拉直至针头从树干中全部退出，则一次注药过程结束。由于采用这种针头进针是由针头外表面挤压树干，挤压量为针头壁厚，因此大大地缩小了挤压量，不容易引起木材纤维胀裂，从而保证了密封效果，农药消耗少，注药效果佳。
该针头设计合理，减小了针头进针时针头与木材之间的摩擦力，不仅进针容易，而且对针头和树都不会造成损伤。且针头的强度、刚度性能较好，针头在进针过程中不易出现弯折、断裂的现象。本技术是一种自退屑针头，进针、退针简便、快捷；结构简单，加工方便,经济耐用。

Claims (9)

  1. 树干注射用针头，沿着针头轴线分别是锥形前部、圆柱形中部、圆柱形后部，后部的外径大于前部和中部；前部开有沿着针头轴线延伸的导屑孔，在后部开有沿着针头轴线延伸的进药孔；其特征是：中部开有两个沿径向延伸的出药出屑孔，两个出药出屑孔之间以分流板相隔；导屑孔的后端与分流板两侧的两个出药出屑孔均相通；进药孔的前端与两个出药出屑孔均相通。
  2. 如权利要求1所述的树干注射用针头，其特征是：分流板的前端为刀刃部，刀刃部具有刃口，从刃口沿着针头的轴线向后，刀刃部在径向方向的厚度逐渐增大。
  3. 如权利要求2所述的树干注射用针头，其特征是：刃口沿着针头径向延伸，刀刃部、分流板和两个出药出屑孔均以刃口对称。
  4. 如权利要求1、2或3所述的树干注射用针头，其特征是：开有出药出屑孔的中部处外径小于前部的最大外径。
  5. 如权利要求2或3所述的树干注射用针头，其特征是：中部与后部之间是锥形过渡部。
  6. 如权利要求5所述的树干注射用针头，其特征是：针头的前部前端为锥形切削部，锥形切削部母线与轴线的之间夹角为25-35°，锥形切削部与导屑孔孔壁相交处形成环形刀。
  7. 如权利要求6所述的树干注射用针头，其特征是：锥形前部的母线与轴线的之间夹角为a＝13-15°；锥形过渡部与锥形前部的锥度相同；刀刃部的两侧面之间的夹角b＝28-32°。
  8. 如权利要求7所述的树干注射用针头，其特征是：出药出屑孔为腰形孔，其宽度与导屑孔直径相等。
  9. 如权利要求1、2或3所述的树干注射用针头，其特征是：在后部外周设置有用于放置o型圈的环槽。
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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103960072B (zh) * 2014-05-23 2015-08-05 南京林业大学 树干注射用针头
CN105613073B (zh) * 2016-03-15 2018-08-24 杨航 一种花卉养殖用药液注射器
US10681874B1 (en) 2017-03-17 2020-06-16 James Scarlata Consulting Forester, LLC Tree injection apparatus and treatment system
CH716100B1 (de) * 2019-04-17 2022-09-30 Invaio Sciences Int Gmbh Injektionssystem und Injektionswerkzeug, insbesondere für Bäume.
JP7454575B2 (ja) * 2018-07-25 2024-03-22 インヴァイオ サイエンシズ インターナショナル ゲーエムベーハー 注入システム、注入器具及びそのための方法
CH715200B1 (de) * 2018-07-25 2022-07-15 Invaio Sciences Int Gmbh Injektionswerkzeug und Pflanzeninjektionssystem, insbesondere für Bäume.
AU2021212298A1 (en) * 2020-01-29 2022-09-22 Invaio Sciences International Gmbh Injection systems, injection tools and methods for same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942368A1 (de) * 1989-12-18 1991-06-20 Reinhold Rossbach Umweltschonendes injektionsverfahren zum einsatz von pestiziden gegen schaediger von baeumen
CN2572757Y (zh) * 2001-04-06 2003-09-17 南京林业大学 一种改进的树干注射机
KR100822060B1 (ko) * 2006-12-21 2008-04-15 이승제 수목 병충해 방제약제 주입장치 및 이를 이용한 수목병충해 방제방법
CN201219391Y (zh) * 2008-07-07 2009-04-15 北京市园林科学研究所 树木输液针头
CN102845245A (zh) * 2012-04-26 2013-01-02 宜兴市金蓬纳米材料有限公司 真空树干注射机
CN202713995U (zh) * 2012-07-13 2013-02-06 中山市沉香黄农林发展有限公司 一种植物输液针头及其应用的植物输液装置
CN103960072A (zh) * 2014-05-23 2014-08-06 南京林业大学 树干注射用针头
CN203851534U (zh) * 2014-05-23 2014-10-01 南京林业大学 树干注射用针头

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US509980A (en) * 1893-12-05 Sap-spout
US469232A (en) * 1892-02-23 Sap-spout
US606613A (en) * 1898-06-28 Sap-spout
US633224A (en) * 1899-05-22 1899-09-19 Edward J Tebbetts Sap-spout and cover.
US1248251A (en) * 1917-07-11 1917-11-27 Benjamin Joseph Breaux Faucet.
US1342299A (en) * 1919-02-24 1920-06-01 Harry H Shaw Can-spout
US3596402A (en) * 1969-06-05 1971-08-03 Vincent F Palmer Power-gun-driven tapper
US3659536A (en) * 1970-10-01 1972-05-02 Robert B White Root feeder device
US4705218A (en) * 1985-04-12 1987-11-10 Ross Daniels, Inc. Nozzle structure for a root feeding device
EP0899999A1 (en) * 1995-05-30 1999-03-10 Geoffrey Richard Eldridge Tree injection apparatus
US5951526A (en) * 1997-09-24 1999-09-14 Korisch; Marina Syringe holder with integral dose divider
US20050166450A1 (en) * 2002-05-09 2005-08-04 Wild Peter M. Injection needle for injecting woody plants
WO2004004443A2 (en) * 2002-07-03 2004-01-15 Wild Peter M Plant injection method and apparatus
CN102239785A (zh) * 2010-05-12 2011-11-16 刘奎军 一种树干注射机针头
KR101288930B1 (ko) * 2011-07-15 2013-07-22 김은응 수간주사기
CN202873397U (zh) * 2012-09-18 2013-04-17 天津绿苑园林绿化工程有限公司 树干注射器
CN203492443U (zh) * 2013-08-05 2014-03-26 雷经洋 一种用于树干输液的金属制针头
WO2016048807A1 (en) * 2014-09-22 2016-03-31 Zoetis Services Llc Multiple channel spike for dispensing fluid from a flexible fluid container, and associated method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942368A1 (de) * 1989-12-18 1991-06-20 Reinhold Rossbach Umweltschonendes injektionsverfahren zum einsatz von pestiziden gegen schaediger von baeumen
CN2572757Y (zh) * 2001-04-06 2003-09-17 南京林业大学 一种改进的树干注射机
KR100822060B1 (ko) * 2006-12-21 2008-04-15 이승제 수목 병충해 방제약제 주입장치 및 이를 이용한 수목병충해 방제방법
CN201219391Y (zh) * 2008-07-07 2009-04-15 北京市园林科学研究所 树木输液针头
CN102845245A (zh) * 2012-04-26 2013-01-02 宜兴市金蓬纳米材料有限公司 真空树干注射机
CN202713995U (zh) * 2012-07-13 2013-02-06 中山市沉香黄农林发展有限公司 一种植物输液针头及其应用的植物输液装置
CN103960072A (zh) * 2014-05-23 2014-08-06 南京林业大学 树干注射用针头
CN203851534U (zh) * 2014-05-23 2014-10-01 南京林业大学 树干注射用针头

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