JPH0620376B2 - Liquid injection device - Google Patents
Liquid injection deviceInfo
- Publication number
- JPH0620376B2 JPH0620376B2 JP12726488A JP12726488A JPH0620376B2 JP H0620376 B2 JPH0620376 B2 JP H0620376B2 JP 12726488 A JP12726488 A JP 12726488A JP 12726488 A JP12726488 A JP 12726488A JP H0620376 B2 JPH0620376 B2 JP H0620376B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- pressure
- injection
- injection valve
- passage
- 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
- 239000007788 liquid Substances 0.000 title claims description 91
- 238000002347 injection Methods 0.000 title claims description 70
- 239000007924 injection Substances 0.000 title claims description 70
- 238000005192 partition Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000002689 soil Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 235000017715 Thymus pulegioides Nutrition 0.000 description 1
- 244000238515 Thymus pulegioides Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 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
- 238000005086 pumping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Fertilizing (AREA)
- Coating Apparatus (AREA)
Description
【発明の詳細な説明】 （産業状の利用分野） 本発明は土中に水や液肥を注入する液体注入装置に関す
るものである。The present invention relates to a liquid injection device for injecting water or liquid fertilizer into soil.
（従来の技術） 一般にこの種の装置は、細い筒状の注入部の一端に注入
バルブを介して液体圧送ポンプの吐出口に連結して構成
され、注入部を地中に差し込んでから注入バルブを開き
液体圧送ポンプから供給された水乃至は液肥を注入部か
ら土中に噴射注入するようになっている。(Prior Art) Generally, this type of device is configured by connecting one end of a thin cylindrical injection part to an outlet of a liquid pressure pump via an injection valve, and after inserting the injection part into the ground, the injection valve The water or liquid fertilizer supplied from the liquid pressure pump is opened and injected into the soil from the injection part.
（発明が解決しようとする課題） 上記従来の液体注入装置では第２図に点線で示すよう
に、注入バルブが閉じている時（ＰＣ）は液体圧送ポン
プから注入バルブに至る間の液体圧送路中の圧力は液体
圧送ポンプの吐出圧（ＰＯ）にまで上昇している（Ａ）
が、注入バルブが開かれると瞬時にしてその圧力が
（Ｂ）に低下し、この注入圧力の低下は液体圧送ポンプ
の吐出圧（ＰＯ）から液体圧送路中の流路抵抗〔圧力ロ
ス（Ｃ）〕を差し引いた圧力（ＰＬ）まで回復し、注入
バルブが閉じられると液体圧送路中の圧力は再び液体圧
送ポンプの吐出圧（ＰＯ）にまで復帰するが、液体圧送
路中の流路抵抗〔圧力ロス（Ｃ）〕により回復する圧力
も低いことから液体圧送路内の圧力が充分に回復するの
に時間がかかり、充分な液体注入が行えないと言う問題
があった。As shown by the dotted line in FIG. 2 is a (0006) the conventional liquid infusion apparatus, when the injection valve is closed (P C) is liquid pumping between reaching the injection valve from a liquid feed pump The pressure in the passage has risen to the discharge pressure (P O ) of the liquid pressure pump (A).
However, when the injection valve is opened, the pressure instantly drops to (B), and this decrease in the injection pressure changes from the discharge pressure (P O ) of the liquid pressure pump to the flow path resistance (pressure loss (pressure loss ( C)] is restored to the pressure (P L ), and when the injection valve is closed, the pressure in the liquid pressure feed passage returns to the discharge pressure (P O ) of the liquid pressure feed pump again. Since the pressure recovered by the flow path resistance [pressure loss (C)] is also low, it takes time for the pressure in the liquid pressure feed path to recover sufficiently, and there is a problem that sufficient liquid injection cannot be performed.
これは、液体圧送ポンプから注入バルブに至間の液体圧
送路中の流路抵抗によるもので、広い菜園に施肥する場
合のように液体圧送ポンプから注入バルブに至間が長い
場合に特に顕著に表れる。This is due to the flow path resistance in the liquid pressure feed path from the liquid pressure feed pump to the injection valve, and is particularly noticeable when the distance from the liquid pressure feed pump to the injection valve is long, such as when fertilizing a large garden. appear.
そこで、こうした場合にも圧力低下を少なくするには大
型の液体圧送ポンプと大口径の液体圧送路を用いるよう
にすることが考えられるが、これでは装置全体が大型化
してしまうと言う問題が生じる。Therefore, even in such a case, it is conceivable to use a large liquid pressure feed pump and a large diameter liquid pressure feed passage in order to reduce the pressure drop, but this causes a problem that the entire device becomes large. .
本発明は上記問題点に鑑み提案されたもので、装置全体
を大型化することなく、しかも土中に充分な圧力で強力
に液体を注入出来る液体注入装置を提供出来るようにす
ることを目的とするものである。The present invention has been proposed in view of the above problems, and an object of the present invention is to provide a liquid injection device capable of strongly injecting liquid into soil with sufficient pressure without increasing the size of the entire device. To do.
（課題を解決するための手段） 上記目的を達成するために本発明に係る液体注入装置
は、地中に挿入される注入部と、この注入部の液体通路
中に注入バルブを介在させ、注入バルブの上流側の液体
通路に液体圧送ボンプの吐出口を連結してなる液体注入
装置において、注入バルブの上流側の液体通路部分に筒
条の蓄圧部を形成し、この蓄圧部の内部空間を密閉摺動
可能な区画壁で仕切って貯液室と押圧室とを形成し、押
圧室を密閉空間に形成するとともに貯液室を液体通路に
連通させたことを特徴とするものである。(Means for Solving the Problems) In order to achieve the above object, a liquid injection device according to the present invention is an injection part to be inserted into the ground, and an injection valve is provided in the liquid passage of the injection part to perform injection. In a liquid injecting device in which a discharge port of a liquid pressure pump is connected to a liquid passage on the upstream side of a valve, a cylindrical pressure accumulating portion is formed in a liquid passage portion on the upstream side of an injection valve, and an internal space of this pressure accumulating portion It is characterized in that the liquid storage chamber and the pressing chamber are formed by partitioning with a partition wall that can be closed and slidable, the pressing chamber is formed in a closed space, and the liquid storage chamber is communicated with the liquid passage.
（作用） 注入部を所望する深さまで土中に挿入し、注入バルブを
開弁する。(Operation) The injection part is inserted into the soil to a desired depth, and the injection valve is opened.
すると、液体圧送ポンプから貯液室に供給されている液
体が注入バルブを通り注入部から土中に噴射されるが、
注入バルブの開弁で貯液室の液体の圧力が瞬時にして低
下しようとするが、この圧力低下が区画壁を介して蓄圧
部の圧力で防止されるので、注入部から土中に噴射され
る液体の噴射圧力の低下は殆ど無くなるのである。Then, the liquid supplied from the liquid pressure pump to the liquid storage chamber is injected into the soil from the injection part through the injection valve.
When the injection valve is opened, the pressure of the liquid in the liquid storage chamber tries to drop instantaneously, but this pressure drop is prevented by the pressure of the pressure accumulator via the partition wall, so it is injected into the soil from the injection part. The drop in the injection pressure of the liquid is almost eliminated.
（実施例） 以下、本発明にかかる液体注入装置の実施例を図面に基
づいて説明する。(Example) Hereinafter, an example of a liquid injection device according to the present invention will be described with reference to the drawings.
第１図は液体注入装置の縦断正面図を示し、図中符号１
は液体注入装置を全体的に示す。FIG. 1 shows a vertical sectional front view of a liquid injection device, in which reference numeral 1
Shows a liquid injection device as a whole.
この液体注入装置１は、注入部２と蓄圧部３とを上下に
設けてなる注入器４と、注入部２内に形成された液体通
路５に液体を圧送供給する供給装置６とからなる。The liquid injection device 1 includes an injector 4 having an injection part 2 and a pressure accumulator 3 provided one above the other, and a supply device 6 for supplying a liquid by pressure to a liquid passage 5 formed in the injection part 2.
注入部２は小径をステンレスパイプ７で形成され、下端
部を斜めに切除して挿入先端部２ａを形成するととも
に、ステンレスパイプ７の内部に形成された液体通路５
の上寄り部には注入バルブ８と供給装置６が連結される
液体入口９が形成されている。The injection part 2 is formed of a stainless pipe 7 having a small diameter, and the lower end is obliquely cut to form the insertion tip part 2a, and the liquid passage 5 formed inside the stainless pipe 7 is formed.
A liquid inlet 9 to which the injection valve 8 and the supply device 6 are connected is formed in the upper side portion.
注入バルブ８は中央に透孔１０が穿設された弁体１１を
ステンレスパイプ７の液体通路５を横切る状態で回転可
能に枢支させて構成されており、ステンレスパイプ７か
ら突出する弁体１１の一端部に揺動アーム１２が設けら
れている。The injection valve 8 is configured by rotatably supporting a valve body 11 having a through hole 10 at the center so as to traverse the liquid passage 5 of the stainless pipe 7, and the valve body 11 protruding from the stainless pipe 7. A swing arm 12 is provided at one end of the.
この揺動アーム１２は、その遊端部が操作アーム１６の
上端部に連結されており、この操作アーム１６の下端部
はステンレスパイプ７の下端部に摺動可能に装着された
接地板１３と注入バルブ８との間に亙って配設されたバ
ランススプリング１４の中間に摺動可能に設けられた操
作環１５に操作アーム１６を介して連結されている。The swing arm 12 has its free end connected to the upper end of the operation arm 16, and the lower end of the operation arm 16 is connected to the ground plate 13 slidably attached to the lower end of the stainless pipe 7. An operating arm 15 is slidably provided in the middle of a balance spring 14 arranged between the injection valve 8 and the injection valve 8 and is connected via an operating arm 16.
供給装置６は薬液又は水を貯留したタンク１７と、タン
ク１７内の薬液又は水を液体入口９に圧送供給する液体
圧送ポンプ１８とで構成され、液体圧送ポンプ１８の吐
出口１８ａが液体入口９に接続されている。The supply device 6 is composed of a tank 17 that stores a chemical solution or water and a liquid pressure pump 18 that supplies the chemical solution or water in the tank 17 to the liquid inlet 9 by pressure, and a discharge port 18 a of the liquid pressure pump 18 has a liquid inlet 9 a. It is connected to the.
上記蓄圧部３は、そのケーシング１９が注入部２のステ
ンレスパイプ７より大径の円筒で形成されると共に、上
端開口部は空気注入口２０が設けられた栓２１で気密状
に閉塞されており、内部の空間は周囲に嵌着されたＯ−
リング２２で気密状に摺動する区画壁２３で上下に分離
されて上方空間を押圧室２４に、下方空間を貯液室２５
に夫々形成して構成されている。The casing 19 of the pressure accumulating portion 3 is formed of a cylinder having a larger diameter than the stainless pipe 7 of the injecting portion 2, and the upper end opening is airtightly closed by a plug 21 provided with an air injecting port 20. , The internal space is O-
It is vertically separated by a partition wall 23 that slides in an airtight manner by a ring 22, and the upper space is a pressing chamber 24 and the lower space is a liquid storage chamber 25.
Are formed respectively.
上記の様に構成された液体注入装置１の作用を次に説明
する。The operation of the liquid injection device 1 configured as above will be described below.
先ず、注入バルブ８を開弁した状態で栓２１に設けられ
た空気注入口２０から押圧室２４に所定圧の空気を注入
する。First, with the injection valve 8 opened, air of a predetermined pressure is injected into the pressing chamber 24 from the air injection port 20 provided in the stopper 21.
すると、押圧室２４と貯液室２５とを区画している区画
壁２３は第１図中に点線Ｄで示すように、蓄圧部３の下
方に下降する。Then, the partition wall 23 partitioning the pressing chamber 24 and the liquid storage chamber 25 descends below the pressure accumulating portion 3 as indicated by a dotted line D in FIG.
しかる後、注入バルブ８を閉弁し、液体圧送ポンプ１８
から圧送された薬液または水を液体入口９から貯液室２
５に注入させる。Thereafter, the injection valve 8 is closed and the liquid pressure pump 18
The liquid medicine 9 or water pumped from the liquid inlet 9 is stored in the liquid storage chamber 2
5 inject.
ここで、薬液または水を液体入口９から貯液室２５に注
入させると、薬液または水の注入圧力により区画壁２３
が押圧室２４の空気の圧力に抗して徐々に上昇し、薬液
または水の注入圧力と押圧室２４の空気の圧力とが釣り
合うまで貯液室２５に薬液または水が注入されることに
なる。Here, when the chemical liquid or water is injected into the liquid storage chamber 25 from the liquid inlet 9, the partition wall 23 is injected by the injection pressure of the chemical liquid or water.
Gradually rises against the pressure of the air in the pressure chamber 24, and the chemical liquid or water is injected into the liquid storage chamber 25 until the injection pressure of the chemical liquid or water and the pressure of the air in the pressure chamber 24 are balanced. .
即ち、押圧室２４に注入される空気の圧力を変更するこ
とによって貯液室２５に貯留される液量を所望する量に
設定することが出来るのである。That is, the amount of liquid stored in the liquid storage chamber 25 can be set to a desired amount by changing the pressure of the air injected into the pressing chamber 24.
次に、注入部２のステンレスパイプ７を所望する深さま
で地中２６に挿入すると、接地板１３が地面２６ａに受
け止められてステンレスパイプ７に対して相対的に摺動
して上昇し、バランススプリング１４を圧縮する。Next, when the stainless steel pipe 7 of the injection part 2 is inserted into the ground 26 to a desired depth, the ground plate 13 is received by the ground 26a and relatively slides up with respect to the stainless steel pipe 7 to ascend. Compress 14.
バランススプリング１４が圧縮されて縮むと、これに伴
って操作アーム１６を介して揺動アーム１２が第１図に
想像線Ｅで示すように揺動されるので注入バルブ８が自
動的に開弁する。When the balance spring 14 is compressed and contracted, the swing arm 12 is swung through the operating arm 16 as shown by the phantom line E in FIG. 1, so that the injection valve 8 automatically opens. To do.
こうして注入バルブ８が開弁されると、貯液室２５に貯
留された一定量の薬液または水は注入バルブ８を通りス
テンレスパイプ７の液体通路５から地中２６に強力に噴
射注入されるのである。When the injection valve 8 is opened in this way, a certain amount of the chemical liquid or water stored in the liquid storage chamber 25 is strongly injected and injected into the ground 26 from the liquid passage 5 of the stainless pipe 7 through the injection valve 8. is there.
この時、注入バルブ８の開弁にともなって液体通路５内
の液体圧力が瞬時のうちに低下しようとするが、区画壁
２３を介して蓄圧部２４の空気圧力で液体圧力の低下が
防止されるので、第２図実戦で示すように注入部２から
地中２６に噴射される液体の噴射圧力（ＰＳ）の低下は
殆ど無くなるのである。At this time, the liquid pressure in the liquid passage 5 tends to drop instantly with the opening of the injection valve 8, but the liquid pressure is prevented from dropping due to the air pressure of the pressure accumulating portion 24 via the partition wall 23. Therefore, as shown in the actual battle of FIG. 2, there is almost no decrease in the injection pressure (P S ) of the liquid injected from the injection part 2 into the ground 26.
尚、上記実施例では注入バルブ８が注入部２を地中２６
に打ち込むのに連動して自動的に開弁するようにしてあ
るが、これを手動で開閉操作するようにしても良いこと
は言うまでもないことである。In the above-mentioned embodiment, the injection valve 8 connects the injection part 2 to the ground 26.
Although the valve is automatically opened in conjunction with driving into, it is needless to say that the valve may be manually opened / closed.
（発明の効果） 注入バルブを開弁した時に注入部から土中に噴射される
液体の噴射圧力が瞬時にして低下するのを区画壁を介し
て蓄圧部の圧力がこれを防止するので、注入部から土中
に噴射される液体の噴射圧力の低下を殆ど無くすことが
出来る。(Effects of the Invention) Since the injection pressure of the liquid injected into the soil from the injection part instantly decreases when the injection valve is opened, the pressure of the pressure accumulating part prevents this from happening through the partition wall. It is possible to almost eliminate the drop in the spray pressure of the liquid sprayed from the part into the soil.
これにより、装置全体を大型化することなく取り扱い易
い小型のままで、液体を土中に強力に噴射注入すること
が出来ると言う利点がある。As a result, there is an advantage that the liquid can be strongly jetted and injected into the soil without increasing the size of the entire apparatus and keeping the size small and easy to handle.
図面は本発明にかかる液体注入装置の一実施例を示すも
ので、第１図は液体注入装置の縦断正面図、第２図は液
体通路内の圧力変動を示すグラフである。 １……液体注入装置、２……注入部、３……蓄圧部、５
……液体通路、８……注入バルブ、１８……液体圧送ポ
ンプ、１８ａ……１８の吐出口、２３……区画壁、２４
……押圧室、２５……貯液室、２６……地中。The drawings show one embodiment of the liquid injection device according to the present invention. FIG. 1 is a vertical front view of the liquid injection device, and FIG. 2 is a graph showing the pressure fluctuation in the liquid passage. 1 ... Liquid injection device, 2 ... Injection part, 3 ... Accumulation part, 5
... liquid passage, 8 ... injection valve, 18 ... liquid pressure pump, 18a ... 18 discharge port, 23 ... partition wall, 24
...... Pressing chamber, 25 …… Storing chamber, 26 …… Under the ground.
Claims (1)
液体通路中に注入バルブを介在させ、注入バルブの上流
側の液体通路に液体圧送ボンプの吐出口を連結してなる
液体注入装置において、注入バルブの上流側の液体通路
部分に筒条の蓄圧部を形成し、この蓄圧部の内部空間を
密閉摺動可能な区画壁で仕切って貯液室と押圧室とを形
成し、押圧室を密閉空間に形成するとともに貯液室を液
体通路に連通させたことを特徴とする液体注入装置。1. A liquid comprising an injection part to be inserted into the ground, an injection valve interposed in a liquid passage of the injection part, and a discharge port of a liquid pressure pump being connected to the liquid passage upstream of the injection valve. In the injection device, a cylindrical pressure accumulating portion is formed in the liquid passage portion on the upstream side of the injection valve, and the internal space of the pressure accumulating portion is partitioned by a partition wall capable of sealing and sliding to form a liquid storage chamber and a pressure chamber. A liquid injection device, wherein the pressing chamber is formed in a closed space and the liquid storage chamber is communicated with the liquid passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12726488A JPH0620376B2 (en) | 1988-05-25 | 1988-05-25 | Liquid injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12726488A JPH0620376B2 (en) | 1988-05-25 | 1988-05-25 | Liquid injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01296913A JPH01296913A (en) | 1989-11-30 |
| JPH0620376B2 true JPH0620376B2 (en) | 1994-03-23 |
Family
ID=14955725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12726488A Expired - Fee Related JPH0620376B2 (en) | 1988-05-25 | 1988-05-25 | Liquid injection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620376B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360005C (en) * | 2006-10-12 | 2008-01-09 | 东北农业大学 | Liquid Fertilizer Spray Needle |
| CN105613073B (en) * | 2016-03-15 | 2018-08-24 | 杨航 | A kind of flower cultivation medical fluid injector |
-
1988
- 1988-05-25 JP JP12726488A patent/JPH0620376B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01296913A (en) | 1989-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |