JPH069351Y2 - Pressure detector - Google Patents
Pressure detectorInfo
- Publication number
- JPH069351Y2 JPH069351Y2 JP1988034390U JP3439088U JPH069351Y2 JP H069351 Y2 JPH069351 Y2 JP H069351Y2 JP 1988034390 U JP1988034390 U JP 1988034390U JP 3439088 U JP3439088 U JP 3439088U JP H069351 Y2 JPH069351 Y2 JP H069351Y2
- Authority
- JP
- Japan
- Prior art keywords
- main shaft
- cylindrical body
- frame
- diameter portion
- step portion
- 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 - Lifetime
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は各種液体、又は気体、又は蒸気等の流体の圧
力を検出する圧力検出装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pressure detection device for detecting the pressure of a fluid such as various liquids, gases, or vapors.
［従来の技術］ 従来この種の技術として、ほぼ第２図に示すような装置
が知られている。同図においてａはフレームであり、そ
の内側に、弾性を有し、弧状部を有する弾性部材ｂが収
容されている。ｃはフレームａの穴ｂに嵌合されている
加圧部材、ｅはストレンゲージ等の歪検出装置である。
加圧部材ｃに矢印ＡＣ方向に荷重をかけると、加圧部材
ｃは弾性部材ｂを撓ませ、その撓みはストレンゲージ等
の歪検出装置ｅにより検出されるようになっている。[Prior Art] Conventionally, an apparatus as shown in FIG. 2 is known as a technology of this type. In the figure, a is a frame, and an elastic member b having elasticity and having an arcuate portion is accommodated inside thereof. Reference numeral c is a pressure member fitted in the hole b of the frame a, and e is a strain detection device such as a strain gauge.
When a load is applied to the pressing member c in the direction of the arrow AC, the pressing member c bends the elastic member b, and the bending is detected by a strain detecting device e such as a strain gauge.
［考案が解決しようとする課題］ しかし上記従来の装置は次のような問題を有したいる。
それは弾性部材ｂが弧状部を有して形成されているた
め、加圧の際に左右いずれかの方向に若干ながら回動し
つつ変形する恐れがある。このため歪検出装置ｅの位置
が変化し、従って歪量を正しく検出できない場合があ
る。このような問題を解決するために容易に着想される
ことは、第３図に示すように弾性部材ｂを保持する受座
ｆを設け、それにより弾性部材ｂの回動を防止すること
である。しかしこのようにした場合、前記加圧部ｃに矢
印ＡＣ方向の圧力を加えると、弾性部材ｃは前記受座ｆ
に自由な変形を妨げられてしまい、正確な歪を検出する
ことができない。[Problems to be Solved by the Invention] However, the above conventional device has the following problems.
Since the elastic member b is formed to have an arcuate portion, it may be deformed while being slightly rotated in either the left or right direction at the time of pressurization. Therefore, the position of the strain detection device e changes, and thus the strain amount may not be detected correctly. What is easily conceived in order to solve such a problem is to provide a receiving seat f for holding the elastic member b as shown in FIG. 3 and thereby prevent the elastic member b from rotating. . However, in this case, when a pressure in the direction of the arrow AC is applied to the pressurizing portion c, the elastic member c causes the seat f to move.
Since the free deformation is hindered, the accurate distortion cannot be detected.
この考案はこのような問題を解決するためになされたも
ので、その目的は弾性部材をフレーム内に収容して、加
圧の際に若干でも回動を起さず、かつ受座ｆ等によって
弾性部材ｂの正しい歪が妨げられることなく、従って厳
密に正しい値の歪を検出できる圧力検出装置を提供する
ことである。This invention has been made to solve such a problem, and its purpose is to accommodate an elastic member in a frame so that it does not slightly rotate at the time of pressurization, and the seat f is used. It is an object of the present invention to provide a pressure detecting device which does not prevent the correct strain of the elastic member b and therefore can accurately detect the strain of a correct value.
［課題を解決するための手段］ 上記の目的を達成するこの考案について述べるとそれ
は、弾性を有する筒体１を収容する、収容部２の両側に
それぞれ軸支部３、４を有するフレーム５；上記軸支部
３、４に摺動自在に貫入して設けられた、小径部６及び
大径部７を有する主軸８；上記収容部２内に位置させら
れている上記小径部６と大径部７との連続部に形成され
る段差部９；前記主軸８の小径部６に、かつ前記段差部
９とフレーム５内面１０間に、さしわたし方向の両側壁
に形成した、前記段差部９より小径の摺動孔１１、１１
により摺動自在に嵌合させた前記筒体１；前記主軸８
の、段差部９形成方向の端部１２と前記フレーム５間に
形成された受圧部１３；前記筒体１の、前記両摺動孔１
１、１１の間に設けられた歪計１４；から成ることを特
徴とする圧力検出装置である。[Means for Solving the Problems] The present invention which achieves the above-mentioned object will be described. It is a frame 5 for accommodating a cylindrical body 1 having elasticity. A spindle 8 having a small diameter portion 6 and a large diameter portion 7 slidably inserted into the shaft supporting portions 3 and 4; the small diameter portion 6 and the large diameter portion 7 positioned in the accommodating portion 2. A step portion 9 formed in a continuous portion with the step portion 9 formed on the small diameter portion 6 of the main shaft 8 and between the step portion 9 and the inner surface 10 of the frame 5 on both side walls in the extending direction. Small-diameter sliding holes 11, 11
The cylindrical body 1 slidably fitted by means of the main shaft 8
A pressure receiving portion 13 formed between the end portion 12 in the direction of forming the step portion 9 and the frame 5; both sliding holes 1 of the cylindrical body 1.
The pressure detecting device is characterized by comprising a strain gauge 14 provided between Nos. 1 and 11.
［作用］ 受圧部１３に、流体により圧力を及ぼすと、この受圧部
１３に連続する前記主軸８は、フレーム５に対して上記
受圧部１３の反対方向に向かって移動する。[Operation] When pressure is applied to the pressure receiving portion 13 by the fluid, the main shaft 8 continuous to the pressure receiving portion 13 moves in the direction opposite to the pressure receiving portion 13 with respect to the frame 5.
この場合前記段差部９も同方向に移動させられ、その結
果主軸８の小径部６に摺動自在に嵌合させられている筒
体１は、段差部９により該段差部９とフレーム５の内面
１０間に圧縮される。そしてこの場合前記筒体１は、主
軸８の小径部３に、段差部９より小径の摺動孔１１、１
１により、摺動自在に嵌合させられており、このため、
筒体１は前記従来例のように回動を起こさず、しかも前
記主軸８に対しては固定部分が全く無く設けられてお
り、従って筒体１の変形は全く拘束を受けることなく、
即ち変形を少しも妨げられずに全体が自由に変形できる
ため、効果的に、厳密に歪を、従って圧力を検出するこ
とができる。In this case, the stepped portion 9 is also moved in the same direction, and as a result, the cylindrical body 1 slidably fitted to the small diameter portion 6 of the main shaft 8 has the stepped portion 9 and the frame 5 between the stepped portion 9 and the frame 5. It is compressed between the inner surfaces 10. In this case, the cylindrical body 1 has sliding holes 11, 1 having a diameter smaller than that of the step portion 9 in the small diameter portion 3 of the main shaft 8.
1, it is slidably fitted. Therefore,
Unlike the conventional example, the cylinder 1 does not rotate, and is provided with no fixed portion on the main shaft 8. Therefore, the deformation of the cylinder 1 is not restricted at all.
That is, since the whole can be freely deformed without being hindered from being deformed at all, it is possible to effectively and precisely detect the strain and thus the pressure.
［実施例］ 第１図において１は筒体であり、金属、合成樹脂又はセ
ラミックス等のような弾性を有する部材により一例とし
て円筒体に形成された。５はフレームであり、上記筒体
１を収容する収容部２を有し、この収容部２の両側にそ
れぞれ軸支部３、４が形成されている。Example 1 In FIG. 1, reference numeral 1 denotes a cylindrical body, which is formed as a cylindrical body by an elastic member such as metal, synthetic resin or ceramics. Reference numeral 5 denotes a frame, which has an accommodating portion 2 for accommodating the cylindrical body 1, and shaft supporting portions 3 and 4 are formed on both sides of the accommodating portion 2.
８は主軸であり、小径部６及び大径部７が一体に形成さ
れており、この両側６、７が前記軸支部３、４にそれぞ
れ摺動自在に嵌合させられている。そして上記小径部６
と大径部７により円状の段差部９が形成され、この段差
部９は前記収容部２内に位置させられている。そして前
記筒体１はそのさしわたし方向の両側、一例として直径
方向の両側壁に形成した、前記段差部９より小径の摺動
孔１１、１１により前記主軸８の小径部６に、摺動自在
に嵌合させられている。即ちこの状態は筒体１が、前記
段差部９と、フレーム５の内面１０間の主軸８に嵌合さ
せられていることになる。A main shaft 8 has a small-diameter portion 6 and a large-diameter portion 7 which are integrally formed. Both sides 6 and 7 are slidably fitted to the shaft supporting portions 3 and 4, respectively. And the small diameter portion 6
A circular step portion 9 is formed by the large-diameter portion 7 and the step portion 9 is located in the accommodation portion 2. The cylindrical body 1 slides on the small-diameter portion 6 of the main shaft 8 by means of sliding holes 11, 11 formed on both sides in the opposite direction, for example, on both side walls in the diametrical direction, which are smaller in diameter than the stepped portion 9. It is fitted freely. That is, in this state, the cylindrical body 1 is fitted to the step portion 9 and the main shaft 8 between the inner surface 10 of the frame 5.
１３は受圧部であり、主軸８の、段差部９形成方向の端
部１２とフレーム５間に形成させられている。そして前
記筒体１の、前記両摺動孔１１、１１の間にストレンゲ
ージ等の歪計１４が設けられている。１６は上記歪計に
接続された表示装置を示す。なお同表示装置１６はこの
他電子回路等により各種信号を発するものでも差支えは
ない。１７は調整部材であり、フレーム５に螺合１８さ
れており、この螺合を調整することにより、前記表示装
置１６の零点調整が出来るようになっている。又前記受
圧部１３はガイド１９、ダイヤフラム２０、受圧板２１
から成っている。２２は受圧部２３は受圧口、２４はパ
ッキンを示す。Reference numeral 13 is a pressure receiving portion, which is formed between the end portion 12 of the main shaft 8 in the direction of forming the step portion 9 and the frame 5. A strain gauge 14 such as a strain gauge is provided between the sliding holes 11, 11 of the cylindrical body 1. Reference numeral 16 denotes a display device connected to the strain gauge. The display device 16 may be a device that emits various signals by an electronic circuit or the like. Reference numeral 17 is an adjusting member, which is screwed onto the frame 5 and the zero point of the display device 16 can be adjusted by adjusting the screwing. The pressure receiving portion 13 includes a guide 19, a diaphragm 20, and a pressure receiving plate 21.
Made of. 22 is a pressure receiving portion 23 is a pressure receiving port, and 24 is a packing.
なおこの実施例の作用は前記の、この考案の作用と殆ど
同様のため省略する。Since the operation of this embodiment is almost the same as the operation of the present invention, the description thereof will be omitted.
［考案の効果］ この考案は前記のように構成され、小径部６及び大径部
７を有し、かつ両部６、７の連続部に段差部９を形成し
た主軸８を、フレーム５に摺動自在に軸支させ、かつ上
記段差部９を上記フレーム５内に位置せしめ、上記主軸
８の小径部６に、かつ段差部９とフレーム５の内面１０
間に、弾性を有する筒体１を摺動孔１１、１１により摺
動自在に嵌合せしめ、該摺動孔１１、１１を前記段差部
９より小径に形成させ、更に前記筒体１に歪計１４を設
けたことにより、筒体１は前記従来例に示されたような
回動を起さず、しかも前記主軸８に対しては固定部分が
全くなく設けられており、従って筒体１の変形は全く拘
束を受けることなく、即ち変形を少しも妨げられずに、
全体が自由に変形できるため、効果的に厳密に、歪を、
従って圧力を検出することができる。[Advantages of the Invention] The invention is constructed as described above, and the main shaft 8 having the small-diameter portion 6 and the large-diameter portion 7 and the stepped portion 9 formed on the continuous portion of the both portions 6 and 7 is attached to the frame 5. The step portion 9 is slidably supported, and the step portion 9 is positioned in the frame 5. The step portion 9 and the inner surface 10 of the frame 5 are attached to the small diameter portion 6 of the main shaft 8.
An elastic cylinder 1 is slidably fitted between the sliding holes 11 to form a diameter smaller than that of the step portion 9, and the cylindrical body 1 is distorted. Since the total of 14 is provided, the cylindrical body 1 does not rotate as shown in the above-mentioned conventional example, and furthermore, the main body 8 is provided with no fixed portion. The deformation of is not restricted at all, that is, the deformation is not hindered at all,
The whole can be freely deformed, so the strain is effectively and strictly
Therefore, the pressure can be detected.
第１図はこの考案の実施例を示し、圧力検出装置の断面
図、第２図は従来の同種装置の断面図、第３図は第２図
と異なる同種装置の断面図である。 １……筒体 ２……収容部 ３……軸支部 ４……軸支部 ５……フレーム ６……小径部 ７……大径部 ８……主軸 ９……段差部 １０…内面 １１…摺動孔 １２…端部 １３…受圧部 １４…歪計FIG. 1 shows an embodiment of the present invention. FIG. 1 is a sectional view of a pressure detecting device, FIG. 2 is a sectional view of a conventional similar device, and FIG. 3 is a sectional view of a similar device different from FIG. 1 ... Cylinder 2 ... Accommodating part 3 ... Axial support part 4 ... Axial support part 5 ... Frame 6 ... Small diameter part 7 ... Large diameter part 8 ... Spindle 9 ... Step part 10 ... Inner surface 11 ... Sliding Moving hole 12 ... End 13 ... Pressure receiving portion 14 ... Strain gauge
Claims (1)
の両側にそれぞれ軸支部３、４を有するフレーム５；上
記軸支部３、４に摺動自在に貫入して設けられた、小径
部６及び大径部７を有すする主軸８；上記収容部２内に
位置させられている、上記小径部６と大径部７との連続
部に形成される段差部９；前記主軸８の小径部６に、か
つ前記段差部９とフレーム５内面１０間に、さしわたし
方向の両側壁に形成した、前記段差部９より小径の摺動
孔１１、１１により摺動自在に嵌合させた前記筒体１；
前記主軸８の、段差部９形成方向の端部１２と前記フレ
ーム５間に形成された受圧部１３；前記筒体１の、前記
両摺動孔１１、１１の間に設けられた歪計１４；から成
ることを特徴とする圧力検出装置。1. An accommodating portion 2 for accommodating a cylindrical body 1 having elasticity.
5 having shaft supporting portions 3 and 4 on both sides of the main shaft 8; a main shaft 8 having a small diameter portion 6 and a large diameter portion 7 slidably inserted into the shaft supporting portions 3 and 4; 2, a step portion 9 formed in a continuous portion of the small diameter portion 6 and the large diameter portion 7 located in the second portion; on the small diameter portion 6 of the main shaft 8 and between the step portion 9 and the inner surface 10 of the frame 5. And the cylindrical body 1 slidably fitted in the sliding holes 11 formed on both side walls in the direction of insertion and having a diameter smaller than that of the step portion 9.
A pressure receiving portion 13 formed between the end portion 12 of the main shaft 8 in the direction of forming the step portion 9 and the frame 5; a strain gauge 14 provided between the sliding holes 11, 11 of the cylindrical body 1. A pressure detecting device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988034390U JPH069351Y2 (en) | 1988-03-15 | 1988-03-15 | Pressure detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988034390U JPH069351Y2 (en) | 1988-03-15 | 1988-03-15 | Pressure detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01137443U JPH01137443U (en) | 1989-09-20 |
| JPH069351Y2 true JPH069351Y2 (en) | 1994-03-09 |
Family
ID=31261101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988034390U Expired - Lifetime JPH069351Y2 (en) | 1988-03-15 | 1988-03-15 | Pressure detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069351Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5029279A (en) * | 1973-07-20 | 1975-03-25 | ||
| JPS5724530U (en) * | 1980-07-16 | 1982-02-08 | ||
| JPH01109239A (en) * | 1987-10-22 | 1989-04-26 | Isuzu Motors Ltd | Smoke detecting device |
-
1988
- 1988-03-15 JP JP1988034390U patent/JPH069351Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01137443U (en) | 1989-09-20 |
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