JP2001006506A - Level switch - Google Patents
Level switchInfo
- Publication number
- JP2001006506A JP2001006506A JP11173828A JP17382899A JP2001006506A JP 2001006506 A JP2001006506 A JP 2001006506A JP 11173828 A JP11173828 A JP 11173828A JP 17382899 A JP17382899 A JP 17382899A JP 2001006506 A JP2001006506 A JP 2001006506A
- Authority
- JP
- Japan
- Prior art keywords
- movable rod
- pressure receiving
- contents
- convex surface
- receiving body
- 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.)
- Pending
Links
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液体、粉体、生ゴ
ミ等の各種物体がホッパ等の容器に設定した位置に達し
た時に検出信号を出し、容器中の物体の上限等を制御す
るためのレベルスイッチに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention outputs a detection signal when various objects such as liquid, powder, garbage and the like reach a position set in a container such as a hopper, and controls an upper limit of the objects in the container. Related to a level switch.
【０００２】[0002]
【従来の技術】従来のレベルスイッチで、光電スイッチ
を採用して光ビームを使い物体の有無を検知して制御す
るものは存在するが、容器内に物体を上方から投入する
と、落下物に対しても反応する問題点を有して入る。2. Description of the Related Art There is a conventional level switch that employs a photoelectric switch to detect and control the presence or absence of an object using a light beam. However, it has a problem of reacting.
【０００３】又、検知部にプロペラを設け、内容物が容
器に設定した位置に達した時に回転しているプロペラに
触れ、プロペラが抵抗を受けることによる変化を検知し
て制御するものも存在するが、内容物が粉体や生ゴミの
場合は抵抗も大きく、又プロペラに内容物が付着し掃除
が面倒になると共に、故障も多くなる。Further, there is a type in which a propeller is provided in a detection unit, and when the contents reach a position set in the container, the propeller touches the rotating propeller to detect and control a change due to the resistance of the propeller. However, when the contents are powder or garbage, the resistance is high, and the contents adhere to the propeller, which makes cleaning troublesome and increases the number of troubles.
【０００４】[0004]
【発明が解決しようとする課題】上記、従来の光電スイ
ッチは投光器と受光器を必要とし、プロペラを使用した
スイッチはモーターを必要とする等価格も高価となると
共に、上記のような種々の問題点を有している。The above-mentioned conventional photoelectric switch requires a light emitter and a light receiver, and a switch using a propeller requires a motor, which is expensive, and has various problems as described above. Have a point.
【０００５】上記点より本発明は、容器内に内容物を上
方から投入しても落下物に対して反応することがなく、
容器に設定した位置に達した時に正確に検出信号を出
し、又内容物との接触部分に内容物が付着し難く、かつ
価格も安価なレベルスイッチを提供しようとするもので
ある。In view of the above, the present invention does not react to falling objects even if the contents are put into the container from above,
It is an object of the present invention to provide a level switch which accurately outputs a detection signal when a position set in a container is reached, and which is hardly attached to a portion in contact with the content and inexpensive.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
本発明レベルスイッチは、片側へ凸面に膨らんだ復元性
を有する素材から成る受圧体と、この受圧体の凸面の内
側面に接触する頭部が軸部の一端に設けられると共に、
軸部の他端が固定基体に摺動可能に挿通された可動棒
と、この可動棒の頭部と固定基体間の可動棒の軸部に設
けられ、頭部を受圧体の凸面の内側に接触させるスプリ
ングと、前記可動棒の軸部の他端を検知する検知手段か
ら構成されていることを特徴とするものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a level switch according to the present invention comprises a pressure receiving member made of a material having resilience bulging to one side and a head contacting the inner surface of the convex surface of the pressure receiving portion. Part is provided at one end of the shaft part,
A movable rod having the other end of the shaft slidably inserted through the fixed base, and a movable rod provided between the head of the movable rod and the fixed base, provided with the head inside the convex surface of the pressure receiving body. It is characterized by comprising a spring to be brought into contact and a detecting means for detecting the other end of the shaft of the movable bar.
【０００７】上記構成を有する本発明は、内容物を収容
する容器内の上限設定位置に受圧体の凸面を容器内に向
けて取り付ければ、可動棒の頭部が受圧体の凸面の内側
面に接触しているため、内容物が受圧体の高さ位置まで
達すると、受圧体は内容物の圧力で押されて可動棒の軸
部がスプリングに抗して固定基体内を検知手段側へ摺動
し、可動棒の軸部の端面が検知手段に接触又は接近する
ことにより、検知手段が検出信号を出し、内容物の供給
を制御する。According to the present invention having the above structure, the head of the movable rod is attached to the inner surface of the convex surface of the pressure-receiving body if the convex surface of the pressure-receiving body is attached to the upper limit setting position in the container for housing the contents so as to face the interior of the container. When the contents reach the height of the pressure receiving body, the pressure receiving body is pushed by the pressure of the contents, and the shaft of the movable rod slides inside the fixed base against the spring toward the detecting means because of the contact. When the end surface of the shaft portion of the movable rod contacts or approaches the detection means, the detection means outputs a detection signal and controls the supply of the contents.
【０００８】そして、容器内の内容物が少なくなって受
圧体が内容物の圧力から解放されると、復元性を有する
素材から成る受圧体は自己復帰し、凸面に膨らむと共に
可動棒はスプリングにより今度は受圧体側に摺動し、可
動棒の軸部の端面は検知手段から離れ、可動棒の頭部が
受圧体の凸面の内側面に接触し、元の待機状態に戻る。When the contents in the container are reduced and the pressure receiving body is released from the pressure of the contents, the pressure receiving body made of a resilient material returns to its original state, swells to a convex surface, and the movable rod is moved by a spring. This time, it slides to the pressure receiving body side, the end surface of the shaft portion of the movable bar separates from the detecting means, the head of the movable bar contacts the inner surface of the convex surface of the pressure receiving unit, and returns to the original standby state.
【０００９】[0009]
【発明の実施の形態】以下、本発明の一実施の形態を図
面に基づき説明する。図１は本発明レベルスイッチの使
用状態を示す断面図、図２及び図３は同上の作用を示す
部分拡大断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a use state of the level switch of the present invention, and FIGS. 2 and 3 are partially enlarged sectional views showing the operation of the same.
【００１０】而して、図中１は片側へ凸面１Ａに膨らん
だ受圧体であり、この受圧体１は凸面１Ａが潰れても復
元性を有するプラスチックやゴム等の素材により形成さ
れている。又、受圧体１は凸面１Ａが半球形に膨らみ、
凸面１Ａの中心に向け徐々に薄く形成され、その周囲は
平坦な縁部１Ｂが形成されている。そして、縁部１Ｂは
液体、粉体、生ゴミ等の各種の内容物２が投入される容
器３の設定した上限位置の内側側壁にボルト等の止着部
材４で取り付けられている。[0010] In the drawing, reference numeral 1 denotes a pressure receiving body which swells to one side with a convex surface 1A, and is made of a material such as plastic or rubber which has a restoring property even if the convex surface 1A is crushed. The pressure receiving body 1 has a convex surface 1A bulging in a hemispherical shape,
The convex surface 1A is formed gradually thinner toward the center, and a flat edge 1B is formed around the convex surface 1A. The edge portion 1B is attached to the inner side wall of the upper limit position of the container 3 into which various contents 2 such as liquid, powder, and garbage are charged by a fastening member 4 such as a bolt.
【００１１】受圧体１の凸面１Ａに該当する容器３の位
置に孔３Ａが穿設されている。又、孔３Ａの容器３の外
側にケース５の縁部５Ａが、前記受圧体１と共に止着部
材４で固定されている。そして、孔３Ａに筒状の固定基
体６が、固定基体６の筒孔６Ａを横にしてその先端を容
器３の外側より嵌入し固定されている。A hole 3A is formed at a position of the container 3 corresponding to the convex surface 1A of the pressure receiving member 1. An edge 5A of the case 5 is fixed to the hole 3A outside the container 3 by a fastening member 4 together with the pressure receiving body 1. The cylindrical fixed base 6 is fixed to the hole 3A by inserting the distal end of the fixed base 6 from the outside of the container 3 with the cylindrical hole 6A of the fixed base 6 aside.
【００１２】この固定基体６の筒孔６Ａに一端に受圧体
１に当接する頭部７Ａを有する可動棒７の軸部７Ｂが摺
動可能に挿通されている。可動棒７の頭部７Ａは受圧体
１の凸面１Ａの内側形状に適合する弧面を有する形状に
形成されている。A shaft portion 7B of a movable rod 7 having a head 7A at one end, which is in contact with the pressure receiving member 1, is slidably inserted into a cylindrical hole 6A of the fixed base 6. The head 7A of the movable rod 7 is formed in a shape having an arc surface that matches the inner shape of the convex surface 1A of the pressure receiving body 1.
【００１３】８は可動棒７の頭部７Ａと固定基体６間の
可動棒７の軸部７Ｂに介在されたスプリングであり、常
時、可動棒７の頭部７Ａを内圧体１の凸面１Ａの内側面
に当接している。Numeral 8 denotes a spring interposed between the head 7A of the movable rod 7 and the shaft 7B of the movable rod 7 between the fixed base 6 and the head 7A of the movable rod 7 at all times. It is in contact with the inner surface.
【００１４】９はケース５の後部に設けた検知手段とし
てのリミットスイッチである。このリミットスイッチ９
は、受圧体１が内容物２の圧力を受けずに容器１内に向
け凸面１Ａに膨らんでいる時は、可動棒７の軸部７Ｂの
端部との間に間隔が生じて検知しないが、内容物２が受
圧体１の設置位置まで達して受圧体１が内容物２の圧力
を受け凸面１Ａが可動棒７側へ押圧されると、可動棒７
がリミットスイッチ９側へ移動し、可動棒７の軸部７Ｂ
の端面がリミットスイッチ９に接触し検知する。Reference numeral 9 denotes a limit switch provided at the rear of the case 5 as detecting means. This limit switch 9
When the pressure receiving body 1 is inflated on the convex surface 1A toward the inside of the container 1 without receiving the pressure of the contents 2, there is a gap between the movable rod 7 and the end of the shaft portion 7B. When the contents 2 reach the installation position of the pressure receiver 1 and the pressure receiver 1 receives the pressure of the contents 2 and the convex surface 1A is pressed toward the movable rod 7, the movable rod 7
Moves to the limit switch 9 side, and the shaft portion 7B of the movable rod 7 moves.
Is in contact with the limit switch 9 for detection.
【００１５】リミットスイッチ９の検知により、内容物
２の供給装置（図示せず）が制御され、供給を停止す
る。尚、図面は検知手段がリミットスイッチ９の場合を
示して入るが、検知手段を近接スイッチとすることもで
きる。この場合、可動棒７の軸部７Ｂは金属製とする。Upon detection of the limit switch 9, a supply device (not shown) for the contents 2 is controlled, and the supply is stopped. Although the drawing shows the case where the detecting means is the limit switch 9, the detecting means may be a proximity switch. In this case, the shaft portion 7B of the movable rod 7 is made of metal.
【００１６】[0016]
【発明の効果】本発明によれば、受圧体は内容物の圧力
を受けて可動棒と共に押圧されるため、内容物が容器に
設定した位置に達するまでは容器の上方から内容物が落
下しても反応することはなく、誤作動が防止される。
又、内容物と接触するのは受圧体だけで、受圧体は復元
性を有する素材で凸面に膨らんだ形成であるため、内容
物による損傷や内容物の付着を受け難く、メンテナンス
が容易である。又、構成も簡単であるため製作費用も安
価である。According to the present invention, since the pressure receiving member receives the pressure of the contents and is pressed together with the movable rod, the contents fall from above the container until the contents reach the position set in the container. No reaction occurs, and malfunction is prevented.
In addition, only the pressure receiving body comes into contact with the contents, and since the pressure receiving body is formed of a material having resilience and swells on a convex surface, it is not easily damaged by the contents or adhered to the contents, and maintenance is easy. . Further, since the configuration is simple, the production cost is low.
【図１】本発明レベルスイッチの使用状態を示す断面図
である。FIG. 1 is a sectional view showing a use state of a level switch of the present invention.
【図２】本発明レベルスイッチの待機時の部分拡大断面
図である。FIG. 2 is a partially enlarged sectional view of the level switch of the present invention in a standby state.
【図３】本発明レベルスイッチの作動時の部分拡大断面
図である。FIG. 3 is a partially enlarged cross-sectional view when the level switch of the present invention is operated.
１ 受圧体 １Ａ 凸面 ２ 内容物 ３ 容器 ６ 固定基体 ７ 可動棒 ７Ａ 可動棒の頭部 ７Ｂ 可動棒の軸部 ８ スプリング ９ リミットスイッチ DESCRIPTION OF SYMBOLS 1 Pressure receiving body 1A Convex surface 2 Contents 3 Container 6 Fixed base 7 Movable rod 7A Movable rod head 7B Movable rod shaft part 8 Spring 9 Limit switch
Claims (1)
材から成る受圧体と、この受圧体の凸面の内側面に接触
する頭部が軸部の一端に設けられると共に、軸部の他端
が固定基体に摺動可能に挿通された可動棒と、この可動
棒の頭部と固定基体間の可動棒の軸部に設けられ、頭部
を受圧体の凸面の内側に接触させるスプリングと、前記
可動棒の軸部の他端を検知する検知手段から構成されて
いることを特徴とするレベルスイッチ。1. A pressure receiving body made of a material having a restoring property bulging to a convex surface to one side, a head contacting an inner side surface of the convex surface of the pressure receiving body is provided at one end of a shaft portion, and the other end of the shaft portion is provided. A movable rod slidably inserted into the fixed base, a spring provided on the shaft of the movable rod between the head of the movable rod and the fixed base, and bringing the head into contact with the inside of the convex surface of the pressure receiving body; A level switch comprising detection means for detecting the other end of the shaft of the movable bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11173828A JP2001006506A (en) | 1999-06-21 | 1999-06-21 | Level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11173828A JP2001006506A (en) | 1999-06-21 | 1999-06-21 | Level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001006506A true JP2001006506A (en) | 2001-01-12 |
Family
ID=15967919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11173828A Pending JP2001006506A (en) | 1999-06-21 | 1999-06-21 | Level switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001006506A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500197A (en) * | 2016-10-31 | 2017-03-15 | 广东美的制冷设备有限公司 | Mobile air conditioner |
| KR101783180B1 (en) * | 2015-08-27 | 2017-11-20 | (주)부흥엔지니어링 | Level switch mounting structure for confirmation raw material inputs of a liquid or minute three-dimensional state |
| KR102093043B1 (en) * | 2018-12-05 | 2020-03-24 | 주식회사 인프로 | Botton type storage amount measurement system |
-
1999
- 1999-06-21 JP JP11173828A patent/JP2001006506A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101783180B1 (en) * | 2015-08-27 | 2017-11-20 | (주)부흥엔지니어링 | Level switch mounting structure for confirmation raw material inputs of a liquid or minute three-dimensional state |
| CN106500197A (en) * | 2016-10-31 | 2017-03-15 | 广东美的制冷设备有限公司 | Mobile air conditioner |
| KR102093043B1 (en) * | 2018-12-05 | 2020-03-24 | 주식회사 인프로 | Botton type storage amount measurement system |
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