CN109906801B - Injection needle and injection method thereof - Google Patents
Injection needle and injection method thereof Download PDFInfo
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- CN109906801B CN109906801B CN201910086595.XA CN201910086595A CN109906801B CN 109906801 B CN109906801 B CN 109906801B CN 201910086595 A CN201910086595 A CN 201910086595A CN 109906801 B CN109906801 B CN 109906801B
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- 238000002347 injection Methods 0.000 title claims abstract description 234
- 239000007924 injection Substances 0.000 title claims abstract description 234
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 7
- 241000238631 Hexapoda Species 0.000 abstract description 10
- 241000894006 Bacteria Species 0.000 abstract description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 26
- 235000011613 Pinus brutia Nutrition 0.000 description 26
- 241000018646 Pinus brutia Species 0.000 description 26
- 241000243771 Bursaphelenchus xylophilus Species 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 12
- 239000000575 pesticide Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 241001133760 Acoelorraphe Species 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of injection, and discloses an injection needle, which comprises an injection end, a connecting end and a pressing end which are integrally connected, wherein the pressing end, the connecting end and the injection end are sequentially communicated; the pressing end is internally provided with an inflating valve, and the pressing end is communicated with the external environment through fluid only when a valve core of the inflating valve is pressed towards the direction of the injection end; the front end of the injection end is provided with a sharp part which can be inserted into a tree, and the front end of the injection end is also provided with at least one injection hole which is positioned at the rear side of the sharp part. The invention also discloses an injection method by using the injection needle, and the injection needle is directly inserted into trees for injection operation, so that the wound of the trees can be minimized, and mould, bacteria and insects are not easy to enter.
Description
Technical Field
The invention belongs to the technical field of injection, and particularly relates to an injection needle and an injection method thereof.
Background
At present, the degree of insect damage to forests is continuously improved, the insect prevention work of forests becomes a hotspot of current research, the pesticide instillation insect prevention is mostly carried out by adopting a tree simple instillation method and a hanging needle instillation method in the prior art, the pesticide spraying method is used for spraying pesticides to prevent insect damage, the environment pollution is large, the influence of wind and rain is large, and the use is not recommended.
Simple tree drip irrigation method: a hole with the diameter of about 5 mm and about 10 mm deep into wood is punched on a trunk by a puncher, an injection needle is obliquely inserted into the hole from top to bottom to form a layer to the wood part, and a pesticide bottle is communicated with the injection needle to form free falling and instillation of pesticide.
The drop-injection method is characterized in that the injection needle is obliquely inserted into the hole from top to bottom to form a layer to the xylem, the drop-injection speed is controlled by a controllable switch on the infusion tube, and the drop-injection speed and the quantity are specifically determined according to the size of the tree and the concentration and variety of the liquid to be dropped.
Both the two drip modes need to punch a larger hole through a puncher, and external microorganisms and dust easily enter a tree body to cause infection.
Based on the defects, the injection needle and the injection method thereof are designed, and pesticide injection operation can be carried out on trees under the condition that a puncher is not used for punching.
Disclosure of Invention
In order to solve the above problems of the prior art, an object of the present invention is to provide an injection needle and an injection method thereof, which can inject pesticide into trees without using a punch.
The technical scheme adopted by the invention is as follows:
an injection needle comprises an injection end, a connecting end and a pressing end which are integrally connected, wherein the pressing end, the connecting end and the injection end are sequentially communicated;
the pressing end is internally provided with an inflating valve, and the pressing end is communicated with the external environment through fluid only when a valve core of the inflating valve is pressed towards the direction of the injection end;
a sharp part capable of being inserted into a tree is formed at the front end of the injection end, and at least one injection hole is formed at the front end of the injection end and is positioned at the rear side of the sharp part;
the sharp part is in a flat triangle shape.
As a further scheme of the invention: the injection end is provided with a plurality of injection holes, and the plurality of injection holes are arranged in an s shape along the length direction of the injection end.
As a further scheme of the invention: the diameter of the injection hole is not more than 0.02 inch.
As a further scheme of the invention: the inflating valve comprises a hollow inflating valve shell, a inflating valve core and a valve cap, wherein the hollow inflating valve shell is matched with and arranged in the pressing end, the lower end of the inflating valve core penetrates through openings at two ends of the hollow inflating valve shell to be connected with the valve cap, the valve cap is sealed and blocked to be arranged on an opening at the lower end of the hollow inflating valve shell, an elastic part is arranged between the valve cap and the hollow inflating valve shell, the elastic part is arranged in the hollow inflating valve shell, and the opening area at the upper end of the hollow inflating valve shell is larger than the end surface area at the upper end of the inflating valve core.
As a further scheme of the invention: the elastic component is a spring.
As a further scheme of the invention: the sharp part is flat and triangular.
The invention also discloses an injection method for injecting by using the injection needle, which comprises the following steps:
step 1: the pressing end of the injection needle is installed on matched plugging equipment in a matching mode, external force acts on the plugging equipment, and the front end of the injection end is inserted into the tree to enable the injection hole to be in contact with the sapwood edge;
step 2: pulling out the plugging device from the injection needle, and sealing, matching and connecting a matched injector with the pressing end of the injection needle to enable the injector to be communicated with the pressing end to perform injection operation;
and step 3: after the injection operation is finished, the injector is pulled out from the injection needle;
and 4, step 4: and then the pressing end of the syringe needle is matched and installed on matched plugging equipment, and finally the syringe needle inserted into the tree is pulled out through the plugging equipment.
As a further scheme of the invention: and 4, pressing the pressing end, and if no liquid flows out along the pressing end, pulling out the injection needle inserted into the tree through the plugging and unplugging equipment.
The invention has the beneficial effects that:
the injection needle is directly inserted into a tree for injection (pesticide injection can be performed on the tree under the condition of not using a puncher for punching), the front end of the injection needle is always inserted into the tree in the injection process, and the whole injection system is in a sealed state, so that air is prevented from entering the tree body, and the phenomenon that water flow and nutrient flow of the tree are cut off when the air enters a tree circulation system is avoided; after injection is finished, the injection needle is pulled out by using matched plugging equipment, and because the outer diameter of the injection end of the injection needle is about 2 mm, a wound formed by inserting the front end of the injection needle into a tree on the tree is small, and gum of the tree can quickly fill and heal the wound; during injection, the needle head can be accurately inserted into the active edge material part of the tree, so that the medicament just enters the vascular system of the tree when being extruded from the injection hole, and compared with the simple tree dripping method and the hanging needle type dripping method, the required medicament amount is greatly reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view showing the arrangement of a plurality of injection holes in example 1.
Fig. 3 is a schematic structural view of the valve of embodiment 2.
In the figure: 1-injection end; 11-an injection hole; 12-a sharp portion; 2-connecting end; 3-pressing end; 41-hollow valve housing; 42-valve core; 421-the upper end of the valve core; 43-valve cap; 44-spring.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1, the injection needle of the present embodiment includes an injection end 1, a connection end 2 and a pressing end 3 which are integrally connected, and the pressing end, the connection end and the injection end are sequentially communicated; the pressing end is internally provided with a valve nozzle, and the pressing end is communicated with the external environment through fluid only when the valve core 42 of the valve nozzle is pressed towards the direction of the injection end; when the device is used, the pressing end of the injection needle is hermetically matched and installed at the front end of a matched injector, in the matching and installing process, the thimble on the matched injector presses the valve inside of the inflating valve to enable the injector and the pressing end to be in a communicated state, the injector can be operated to inject, and injected liquid sequentially enters the pressing end, the connecting end and the injection end from the injector.
When the injection needle is used, the injection needle is firstly matched and connected with matched plugging equipment and then acts on the matched plugging equipment through external force, and the sharp part capable of being inserted into the tree is formed at the front end of the injection end, so that the front end of the injection needle is conveniently inserted into the tree, and the injection hole is close to a sapwood part of the tree; then the matched plugging equipment is pulled out from the injection needle, so that the matched injector is in sealing matching connection with the injection needle, and an ejector pin on the matched injector presses the valve inside of the inflating valve to enable the injector to be communicated with the pressing end; therefore, the injector can be operated to inject the tree, the injection in the injector enters the sapwood part of the tree through the injection hole, 1ml of liquid can be injected by the matched injector at one time, 1ml of liquid can be conveniently and quickly supplied to the tree through the injection hole, and in the injection process, the accurate injection of small dose is beneficial to the tree to absorb the 1ml of liquid under the pushing force of the injector. By this method, all the injected agent can be made to directly enter the vascular system of the tree, thus greatly reducing the required agent amount, and by adjusting the injector, the injection amount can be set to 0.5ml per time. The injection needle can be used for injecting chemicals to carry out insect pest prevention operation on trees, and directly carrying out injection operation without using a puncher for punching (a large amount of chemicals are needed in the traditional instillation mode, and a larger hole needs to be punched by the puncher), so that the wound of the trees can be minimized, and mildew, bacteria and insects are not easy to enter; in the injection process, the whole injection system is in a sealed state, so that air is prevented from entering the tree body, and the phenomenon that water flow and nutrient flow of the tree are cut off as the air enters the tree circulation system is avoided.
In this embodiment, the number of the injection holes is multiple, and as shown in fig. 2, the multiple injection holes may enable the injection liquid in the injector to be rapidly supplied to the corresponding trees through the multiple injection holes, and preferably, the multiple injection holes are arranged in an s shape along the length direction of the injection end, which is beneficial for the injection liquid to be uniformly supplied to the sapwood parts of the trees along different directions. The number of the injection holes can also be one, and the number of the injection holes is determined according to actual needs. The arrangement mode of the plurality of injection holes is not limited to the s-shaped arrangement mode, and other arrangement modes can be selected according to the actual application requirements.
The aperture of the injection hole is not more than 0.02 inch, and the aperture of the injection hole is not easy to be too large in the process of injecting the tree by using the injection needle disclosed by the invention, so that the situation that the fiber of the tree enters the injection needle through the injection hole to block the injection hole and further the use of the injection needle is influenced is avoided.
Example 2:
the injection needle of the embodiment comprises an injection end 1, a connecting end 2 and a pressing end 3 which are integrally connected, wherein the pressing end, the connecting end and the injection end are sequentially communicated; the pressing end is internally provided with a valve nozzle, and the pressing end is communicated with the external environment through fluid only when the valve core 42 of the valve nozzle is pressed towards the direction of the injection end; when the device is used, the pressing end of the injection needle is hermetically matched and installed at the front end of a matched injector, in the matching and installing process, the thimble on the matched injector presses the valve inside of the inflating valve to enable the injector and the pressing end to be in a communicated state, the injector can be operated to inject, and injected liquid sequentially enters the pressing end, the connecting end and the injection end from the injector.
When the injection needle is used, the injection needle is firstly matched and connected with matched plugging equipment and then acts on the matched plugging equipment through external force, and the sharp part capable of being inserted into the tree is formed at the front end of the injection end, so that the front end of the injection needle is conveniently inserted into the tree, and the injection hole is close to a sapwood part of the tree; then the matched plugging equipment is pulled out from the injection needle, so that the matched injector is in sealing matching connection with the injection needle, and an ejector pin on the matched injector presses the valve inside of the inflating valve to enable the injector to be communicated with the pressing end; therefore, the injector can be operated to inject the tree, the injection in the injector enters the sapwood part of the tree through the injection hole, 1ml of liquid can be injected by the matched injector at one time, 1ml of liquid can be conveniently and quickly supplied to the tree through the injection hole, and in the injection process, the accurate injection of small dose is beneficial to the tree to absorb the 1ml of liquid under the pushing force of the injector. By this method, all the injected agent can be directed into the vascular system of the tree, thus greatly reducing the amount of agent required. By adjusting the syringe, an injection volume of 0.5ml can be set. The injection needle can be used for injecting chemicals to prevent insect pests for trees, and directly injecting the chemicals without using a puncher for punching, so that the wound of the trees can be minimized, and mildew, bacteria and insects are not easy to enter; in the injection process, the whole injection system is in a sealed state, so that air is prevented from entering the tree body, and the phenomenon that water flow and nutrient flow of the tree are cut off as the air enters the tree circulation system is avoided.
In the present embodiment, as shown in fig. 3, the valve specifically includes a hollow valve housing 41, a valve core 42 and a valve cap 43, the hollow valve shell is arranged in the pressing end in a matching way, the lower end of the valve core sequentially penetrates through the openings at the two ends of the hollow valve shell to be connected with the valve cap, and when the valve is in a normal state, the valve cap is sealed and plugged on the lower end opening of the hollow valve shell, the pressing end is not communicated with the external environment, when the valve core of the valve nozzle is pressed towards the injection end direction, the upper end 421 of the valve core displaces towards the lower end opening and drives the valve cap to displace downwards to open the lower end opening of the hollow valve shell, because the upper end opening area of the hollow valve shell is larger than the upper end surface area of the valve core, the upper end opening cannot be blocked due to the pressing of the valve core, so that the pressing end is communicated with the external environment fluid. After the injection needle head is installed on the injector in a sealing and matching mode, the thimble of the injector presses the valve inside of the valve nozzle to enable the injector and the pressing end to be in a communicated state, the injector is operated to enable liquid medicine in the injector to enter the injection needle head and then enter a tree through the injection hole, and insect damage prevention operation can be conducted on chemical products injected into the tree, such as a medicament which can be used for preventing and controlling pine wood nematode disease can be injected into the pine. Because the elastic part (optional spring 44) is arranged between the valve cap and the hollow valve shell, the elastic part is arranged in the hollow valve shell, when the valve core is not pressed by external force, the valve cap can be plugged on the lower end opening of the hollow valve shell again under the action of the elastic restoring force of the elastic part, and the pressing end is not communicated with the external environment again, so that the sealing property of the system can be ensured, and the worry of exposing the injection part to the external environment is eliminated theoretically.
The injection method for injecting by using the injection needle of the invention comprises the following steps:
step 1: the pressing end of the injection needle is installed on matched plug equipment in a matching mode, external force acts on the plug equipment, and the front end of the injection end is inserted into the tree to enable the injection hole to be in contact with the sapwood.
Step 2: and pulling out the plugging and unplugging equipment from the injection needle, and sealing, matching and connecting the matched injector and the pressing end of the injection needle to communicate the injector and the pressing end for injection operation.
And step 3: after the injection operation is completed, the syringe is pulled out of the needle.
And 4, step 4: pressing the pressing end to see whether there is liquid flowing out along the pressing end, if no liquid flows out, it indicates that the liquid injected during the injection operation is absorbed by the sapwood part. And then the pressing end of the syringe needle is matched and installed on matched plugging equipment, and finally the syringe needle inserted into the tree is pulled out through the plugging equipment. The injection needle is directly inserted into a tree for injection operation, the front end of the injection needle is always inserted into the tree during the injection process, and the whole injection system is in a sealed state, so that air is prevented from entering the tree body, and the phenomenon that water flow and nutrient flow of the tree are cut off as the air enters a tree circulation system is avoided; after injection is finished, the injection needle is pulled out by using matched plugging equipment, and because the outer diameter of the injection end of the injection needle is about 2 mm, a wound formed by inserting the front end of the injection needle into a tree on the tree is small, gum of the tree can quickly fill and heal the wound.
Application example 1:
30 healthy pine trees were injected with a pine wood nematode control agent (prepared by Eienxi (Wuhan) science and technology Co., Ltd.) according to the injection method described above.
Injection site selection: depending on the thickness of the tree, the location of the branch and trunk nodes, etc., it is generally as low as possible within one meter of the ground below all branch nodes.
Injection amount: depending on the size of the tree. If the circumference of a tree is 80cm, the technician needs to inject 3 ml per needle (the injection amount per needle needs 3 operations on the injector to complete, and 1 operation on the injector to complete 1ml injection); injecting one needle every 10-15 cm around the trunk; for trees with a circumference of 80cm, 6-8 needles were injected. In this application, the circumference of the pine tree was about 80cm, and 8 needles were injected into each pine tree on average.
Pine after injection can usually prevent bursaphelenchus xylophilus for 3 years or more.
Application example 2:
40 healthy pine trees were injected with a pine wood nematode control agent (prepared by Eienxi (Wuhan) science and technology Co., Ltd.) according to the injection method described above.
Injection site selection: depending on the thickness of the tree, the location of the branch and trunk nodes, etc., it is generally as low as possible within one meter of the ground below all branch nodes.
Injection amount: depending on the size of the tree. If the circumference of a tree is 90cm, the technician needs to inject 4 ml per needle (the injection amount per needle needs 4 operations on the injector to complete, and 1 operation on the injector completes 1ml injection); injecting one needle every 10-15 cm around the trunk; for trees with a circumference of 90cm, 6-9 needles were injected. In this application test, the circumference of the pine tree was about 90cm, and on average 9 needles were injected per pine tree.
Pine after injection can usually prevent bursaphelenchus xylophilus for 3 years or more.
Application example 3:
140 healthy pine trees were injected with the agent for controlling pine wood nematode disease (prepared by einxi (wuhan) science and technology ltd) according to the injection method described above.
Injection site selection: depending on the thickness of the tree, the location of the branch and trunk nodes, etc., it is generally as low as possible within one meter of the ground below all branch nodes.
Injection amount: depending on the size of the tree. If the circumference of a tree is 100cm, the technician needs to inject 4 ml per needle (the injection amount per needle needs 4 operations on the injector to complete, and 1 operation on the injector completes 1ml injection); injecting one needle every 10-15 cm around the trunk; for trees with a 100cm circumference, 7-10 needles were injected. In this application test, the circumference of the pine tree was about 100cm, and 10 needles were injected into each pine tree on average.
Pine after injection can usually prevent bursaphelenchus xylophilus for 3 years or more.
Application example 4:
49 healthy pine trees were injected with a pine wood nematode control agent (prepared by Eienxi (Wuhan) science and technology Limited) according to the injection method described above.
Injection site selection: depending on the thickness of the tree, the location of the branch and trunk nodes, etc., it is generally as low as possible within one meter of the ground below all branch nodes.
Injection amount: depending on the size of the tree. If the circumference of one tree is 70cm, the technician needs to inject 3 ml per needle (the injection amount per needle needs 3 operations on the injector to complete, and 1 operation on the injector to complete 1ml injection); injecting one needle every 10-15 cm around the trunk; for trees with a circumference of 70cm, 5-7 needles were injected. In this application test, the circumference of the pine tree was about 70cm, and an average of 7 needles per pine tree was injected.
Pine after injection can usually prevent bursaphelenchus xylophilus for 3 years or more.
Application example 5:
20 healthy pine trees were injected with a pine wood nematode control agent (prepared by Eienxi (Wuhan) science and technology Co., Ltd.) according to the injection method described above.
Injection site selection: depending on the thickness of the tree, the location of the branch and trunk nodes, etc., it is generally as low as possible within one meter of the ground below all branch nodes.
Injection amount: depending on the size of the tree. If the circumference of a tree is 110cm, the technician needs to inject 3 ml per needle (the injection amount per needle needs 3 operations on the injector to complete, and 1 operation on the injector to complete 1ml injection); injecting one needle every 10-15 cm around the trunk; for trees with a circumference of 110cm, 8-11 needles were injected. In this application test, the circumference of the pine tree was about 110cm, and an average of 11 needles per pine tree was injected.
Pine after injection can usually prevent bursaphelenchus xylophilus for 3 years or more.
Application example 6:
the 15 healthy pine trees were injected with the agent (prepared by aynz technologies ltd.) for controlling pine wood nematode disease according to the injection method described above.
Injection site selection: depending on the thickness of the tree, the location of the branch and trunk nodes, etc., it is generally as low as possible within one meter of the ground below all branch nodes.
Injection amount: depending on the size of the tree. If the circumference of one tree is 120cm, the technician needs to inject 3 ml per needle (the injection amount per needle needs 3 operations on the injector to complete, and 1 operation on the injector to complete 1ml injection); injecting one needle every 10-15 cm around the trunk; for trees with a circumference of 120cm, 8-12 needles were injected. In this application, the circumference of the pine tree was about 120cm, and 12 needles were injected into each pine tree on average.
Pine after injection can usually prevent bursaphelenchus xylophilus for 3 years or more.
The injection needle head can be designed with different injection ends according to different trees, so that different injection needle heads are respectively suitable for injecting hardwood trees, coniferous trees, palm trees or other trees, for coniferous trees and palm trees such as pine trees, the injection needle head is firstly connected with matched plugging equipment at a short distance from the tree base, the injection needle head is vertically inserted into the tree body through certain external force acting on the plugging equipment, the insertion depth is related to the thickness of bark, and the injection needle heads with different lengths (mainly, the lengths of the injection ends are different) can be selected according to the circumference of the tree; after the injection needle is quickly connected to the injector, the injector is operated to inject the agent into the tree's circulation system. For hardwood trees, an anti-spill plug of about 0.2 mm in diameter is first implanted in the bark, then an injection needle is passed through the anti-spill plug, and then the agent is injected into the cambium of the tree.
The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. It is within the purview of the appended claims to cover all such variations as fall within the true scope of the invention, as defined in the claims, regardless of shape, configuration, or method of operation. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the claims, and which the description is intended to be interpreted accordingly.
Claims (4)
1. An injection method for performing injection by using an injection needle, comprising the following steps:
step 1: the pressing end of the injection needle is installed on matched plugging equipment in a matching mode, external force acts on the plugging equipment, and the front end of the injection end is inserted into the tree to enable the injection hole to be in contact with the sapwood edge;
step 2: pulling out the plugging device from the injection needle, and sealing, matching and connecting a matched injector with the pressing end of the injection needle to enable the injector to be communicated with the pressing end to perform injection operation;
and step 3: after the injection operation is finished, the injector is pulled out from the injection needle;
and 4, step 4: then the pressing end of the syringe needle is matched and installed on matched plugging equipment, and finally the syringe needle inserted into the tree is pulled out through the plugging equipment;
in the step 4, the pressing end is pressed, and if no liquid flows out along the pressing end, the injection needle inserted into the tree is pulled out through the plugging device;
the injection needle comprises an injection end, a connecting end and a pressing end which are integrally connected, and the pressing end, the connecting end and the injection end are sequentially communicated;
the pressing end is internally provided with an inflating valve, and the pressing end is communicated with the external environment through fluid only when a valve core of the inflating valve is pressed towards the direction of the injection end;
a sharp part capable of being inserted into a tree is formed at the front end of the injection end, and an injection hole is formed at the front end of the injection end and is positioned at the rear side of the sharp part;
the sharp part is in a flat triangle shape;
the injection end is provided with a plurality of injection holes, and the plurality of injection holes are arranged in an s shape along the length direction of the injection end.
2. An injection method using an injection needle for injection according to claim 1, characterized in that: the diameter of the injection hole is not more than 0.02 inch.
3. An injection method using an injection needle for injection according to claim 1, characterized in that: the inflating valve comprises a hollow inflating valve shell, a inflating valve core and a valve cap, wherein the hollow inflating valve shell is matched with and arranged in the pressing end, the lower end of the inflating valve core penetrates through openings at two ends of the hollow inflating valve shell to be connected with the valve cap, the valve cap is sealed and blocked to be arranged on an opening at the lower end of the hollow inflating valve shell, an elastic part is arranged between the valve cap and the hollow inflating valve shell, the elastic part is arranged in the hollow inflating valve shell, and the opening area at the upper end of the hollow inflating valve shell is larger than the end surface area at the upper end of the inflating valve core.
4. An injection method using an injection needle for injection according to claim 3, characterized in that: the elastic component is a spring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910086595.XA CN109906801B (en) | 2019-01-29 | 2019-01-29 | Injection needle and injection method thereof |
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| CN201910086595.XA CN109906801B (en) | 2019-01-29 | 2019-01-29 | Injection needle and injection method thereof |
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| CN109906801B true CN109906801B (en) | 2022-01-25 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087867U (en) * | 1991-04-16 | 1991-11-06 | 严有彰 | Injector for tree trunk |
| US8671614B1 (en) * | 2011-08-15 | 2014-03-18 | Glayne Doolittle | Injection tip for use with an injector for injecting liquid chemical into a tree |
| US8677683B2 (en) * | 2011-08-15 | 2014-03-25 | Glayne Doolittle | Injection tip for use with an injector for injecting liquid chemical into a tree |
| CN109006015B (en) * | 2018-10-09 | 2023-11-28 | 爱恩溪(武汉)科技有限公司 | Injection syringe |
| CN209546384U (en) * | 2019-01-29 | 2019-10-29 | 田珍姣 | A kind of injection needle |
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