KR200156880Y1 - An alarm for gas tank - Google Patents

An alarm for gas tank Download PDF

Info

Publication number
KR200156880Y1
KR200156880Y1 KR2019960001681U KR19960001681U KR200156880Y1 KR 200156880 Y1 KR200156880 Y1 KR 200156880Y1 KR 2019960001681 U KR2019960001681 U KR 2019960001681U KR 19960001681 U KR19960001681 U KR 19960001681U KR 200156880 Y1 KR200156880 Y1 KR 200156880Y1
Authority
KR
South Korea
Prior art keywords
compression vessel
container
alarm device
alarm
gas
Prior art date
Application number
KR2019960001681U
Other languages
Korean (ko)
Other versions
KR970052315U (en
Inventor
김완태
Original Assignee
김완태
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 김완태 filed Critical 김완태
Priority to KR2019960001681U priority Critical patent/KR200156880Y1/en
Publication of KR970052315U publication Critical patent/KR970052315U/en
Application granted granted Critical
Publication of KR200156880Y1 publication Critical patent/KR200156880Y1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/021—Special adaptations of indicating, measuring, or monitoring equipment having the height as the parameter
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/036—Control means using alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0408—Level of content in the vessel
    • F17C2250/0413—Level of content in the vessel with floats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0408—Level of content in the vessel
    • F17C2250/0417—Level of content in the vessel with electrical means

Abstract

본 고안은 압축용기 내의 가스 잔량감지 및 경보장치에 관한 것으로서, 액화가스를 수용하는 가스통, 산소통 등의 압축용기내의 수용물에 대한 잔유량을 감지하여 사용자가 잔유량을 알아 교환시기를 조기에 알 수 있는 압축용기 내의 가스 잔량감지 및 경보장치를 얻기 위한 것으로 바, 일반 압축용기에 있어서, 용기와 밸브의 사이에 장착되는 중간 부재와, 상기의 중간부재 사이에 장착된 감지부와 전송선로가 삽입된 고정대와, 용기의 압력 누설을 방지하게 실링이 끼워진 연결부재가 장착된 중간부재와, 감지부에서 감지된 신호를 받아 용기내의 각 위치 점의 점등과 최하위 점에 경보음을 발하도록 한 경보장치로 장착함으로써, 용기내의 유량을 알 수 있는 특징이 있다.The present invention relates to a gas residual amount detection and alarm device in a compression vessel, and detects the residual amount of the contents in a compression vessel such as a gas cylinder and an oxygen cylinder containing liquefied gas, so that the user can know the remaining volume and know when to replace it. In order to obtain the remaining gas detection and alarm device in the compression vessel, in the general compression vessel, an intermediate member mounted between the container and the valve, and a sensing unit and a transmission line inserted between the intermediate member And an intermediate member equipped with a connecting member fitted with a seal to prevent pressure leakage of the container, and an alarm device configured to receive a signal sensed by the sensing unit and to emit an alarm sound at each of the location points and the lowest point in the container. Thereby, there exists a characteristic which knows the flow volume in a container.

Description

압축용기 내의 가스 잔량감지 및 경보장치Gas level detection and alarm device in the compression vessel

본 고안은 압축용기 내의 가스 잔량감지 및 경보장치에 관한 것으로서, 더욱 상세하게는, 액화 가스를 수용하는 가스통, 산소통 등의 압축용기내의 수용물에 대한 잔유량을 감지하여 사용자가 잔유량을 알아 교환시기를 조기에 알 수 있는 압축용기 내의 가스 잔량감지 및 경보장치에 관한 것이다.The present invention relates to a gas residual amount detection and alarm device in a compression vessel, and more particularly, to detect the residual flow volume of the contents in the compression vessel, such as gas cylinders, oxygen cylinders containing liquefied gas, and the user knows the residual flow volume and exchanges it. The present invention relates to a gas level detection and warning device in a compression vessel that can be known at an early stage.

종래의 압축용기는 유량계가 없어 잔유량을 알 수가 없을 뿐 만 아니라 충전되어져 오는 가스의 양을 알 수가 없었다. 또한, 잔유량을 알 수 있는 장치로 스프링의 탄성을 이용하거나 천칭의 원리를 이용한 저울 장치와 용기의 투명성을 이용한 방법 등을 제안하였다.Conventional compression vessels do not have a flow meter not only can not know the residual flow rate but also the amount of gas being filled. In addition, as a device for knowing the residual flow amount, using a spring elasticity or a balance device using the principle of balance and a method using the transparency of the container.

그러나, 이러한 종래의 압축용기는, 용기내의 내용물이 소모되어 교환해야 되는 시점을 알 수 없는 관계로 사용도중에 가스가 떨어져 많은 어려움을 겪고 있으며 가스의 잔량을 전부 사용하기도 전에 미리 교환하여 낭비되는 문제점이 있었다.However, such a conventional compressed container has a problem that it is difficult to drop the gas during use because the contents of the container are consumed and the exchange time is not known. there was.

또한, 종래의 상기 제안방법은 구조가 매우 복잡하고 제작이 어려웠고 안전성 및 정확성이 없으며 특히 재사용시 정상기능을 다하지 못하는 점이 있었다.In addition, the proposed method of the related art has a structure that is very complicated, difficult to manufacture, lacks safety and accuracy, and in particular, does not perform a normal function upon reuse.

따라서, 본 고안은 상기 종래의 문제점을 감안하여 안출한 것으로서, 본 고안의 목적은, 액화 가스를 수용하는 가스통, 산소통 등의 압축용기내의 수용물에 대한 잔유량을 감지하여 사용자가 잔유량을 알아 교환시기를 조기에 알 수 있는 압축용기 내의 가스 잔량감지 및 경보장치를 제공하는 데 있다.Therefore, the present invention has been devised in view of the above-mentioned conventional problems, and an object of the present invention is to detect the residual amount of oil in a compressed container such as a gas cylinder or an oxygen cylinder containing a liquefied gas, so that the user knows the amount of the residual flow The present invention provides a gas residual amount detection and warning device in a compression vessel that can be known early.

이와 같은 목적을 달성하기 위한 본 고안의 압축용기 내의 가스 잔량감지 및 경보장치는, 압축용기에 있어서, 압축용기의 내용물을 감지하는 전자식 감응장치와, 상기의 감지한 신호를 전송하는 전송선로와, 압축용기상부의 장착되어 전송선로를 내부에서 외부로 나가는 부분에 내압이 유실되지 않게 연결부재와 고정대로 구성된 중간부재와, 전자식 감응장치에서 감지한 신호를 판단하여 단계별로 세분화하여 경보음을 울리거나 램프로 알려주는 경보장치로 구성하여 달성하였다.Gas residual amount detection and alarm device in the compression vessel of the present invention for achieving the above object, in the compression vessel, an electronic sensing device for sensing the contents of the compression vessel, and a transmission line for transmitting the sensed signal; Intermediate member consisting of connecting member and fixture, and the signal detected by the electronic sensitive device are divided into stages to sound an alarm so that the internal pressure of the compression vessel is installed and the transmission line is not lost from inside to outside. Achieved by configuring the alarm to inform the lamp.

제1도는 본 고안의 일실시예의 압축용기 내의 가스 잔량감지 및 경보장치를 도시한 개략단면도이다.1 is a schematic cross-sectional view showing a gas residual amount detection and alarm device in the compression vessel of an embodiment of the present invention.

제2도는 본 고안의 압축용기 내의 가스 잔량감지 및 경보장치의 감응장치를 도시한 계략단면도이다.2 is a schematic cross-sectional view showing a gas residual amount detection and alarm device in the compression vessel of the present invention.

제3도는 본 고안의 용기와 밸브사이에 장착되는 중간연결부재를 도시한 단면도이다.3 is a cross-sectional view showing an intermediate connecting member mounted between the container and the valve of the present invention.

제4도는 본 고안의 다른 실시예의 압축용기 내의 가스 잔량감지 및 경보장치를 도시한 단면도이다.4 is a cross-sectional view showing the gas remaining amount detection and alarm device in the compression vessel of another embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 감응장치 20 : 전송선로10: induction device 20: transmission line

40 : 경보장치 50 : 중간부재40: alarm device 50: intermediate member

55 : 고정대 56 : 연결부재55: holder 56: connecting member

이하, 첨부된 도면을 참조하여 본 고안의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 고안의 일실시예의 압축용기 내의 가스 잔량감지 및 경보장치를 도시한 개략단면도이고, 제2도는 본 고안의 압축용기 내의 가스 전량감지 및 경보장치의 감응장치를 도시한 개략단면도이고, 제3도는 본 고안의 용기와 밸브사이에 장착되는 중간연결부재를 도시한 단면도이고, 제4도는 본 고안의 다른 실시예의 압축용기 내의 가스 전량감지 및 경보장치를 도시한 단면도이다.1 is a schematic cross-sectional view showing a gas residual amount detection and alarm device in the compression vessel of an embodiment of the present invention, Figure 2 is a schematic cross-sectional view showing a gas quantity detection and alarm device in the compression vessel of the present invention, 3 is a cross-sectional view showing an intermediate connecting member mounted between a container and a valve of the present invention, and FIG. 4 is a cross-sectional view showing a gas quantity sensing and warning device in a compression vessel of another embodiment of the present invention.

제1도 내지 제2도에서 나타낸 바와 같이, 본 고안의 압축용기 내의 가스 잔량감지 및 경보장치는, 압축용기에 있어서, 압축용기의 내용물을 감지하는 전자식 감응장치(10)와, 상기의 감지한 신호를 전송하는 전송선로(20)와, 압축용기상부에 장착되어 전송선로를 내부에서 외부로 나가는 부분에 내압이 유실되지 않게 연결부재(56)와 고정대로 구성된 중간부재(50)와, 전자식 감응장치(10)에서 감지된 신호를 판단하여 경보음을 울리거나 램프로 알려주는 경보장치(40)를 포함하여 구성된 특징이 있다.As shown in Figures 1 to 2, the gas residual amount detection and alarm device in the compression vessel of the present invention, in the compression vessel, an electronic sensitive device 10 for sensing the contents of the compression vessel, and the detected A transmission line 20 for transmitting signals, an intermediate member 50 mounted on the compression vessel and a connecting member 56 and a fixed member so as to prevent internal pressure from being lost from the inside to the outside of the transmission line, and an electronic response It is characterized in that it comprises an alarm device 40 for determining the signal detected by the device 10 to sound an alarm or inform the lamp.

상기의 감응장치(10)는 내부에 자력선 감지부가 삽설되어 있고, 부력이 좋은 부표(14)에 의해 상하로 작동되며 안쪽면에 자석(11)이 장착된 피사체(12)와, 부표(14)에 의해 상하로 움직이는 피사체내의 자력을 감지하는 감지부가 장착되어 있고 용기의 하부면에 가라앉토록 중량이 있는 본체부(13)로 구성되었다.The sensing device 10 has a magnetic field line detecting unit inserted therein, the subject 12 and the buoy 14 which are operated up and down by a buoy 14 having good buoyancy and are equipped with a magnet 11 on an inner surface thereof. It consists of a main body 13, which is equipped with a sensing unit for detecting the magnetic force in the subject moving up and down by the weight to sink on the lower surface of the container.

상기의 전송선로(20)는 밀폐성이 좋으며 내식성 강한 전선으로 감응장치에서 감지한 신호를 외부의 경보장치(40)에 보내주도록 장착되어 있다.The transmission line 20 has a good sealing property and is installed to send a signal detected by the sensing device to an external alarm device 40 with a strong corrosion resistance wire.

상기 중간부재(50)는 용기내의 압력이 유실되지 않도록 실링이 장착된 연결부재(56)와 전송선로를 고정하는 고정대를 형성하고 있다.The intermediate member 50 forms a fixing member for fixing the transmission line and the connection member 56 with a seal so that pressure in the container is not lost.

상기의 경보장치(40)는 감응장치(10)에서 감지한 신호를 받아 교환시기, 내용물의 잔량을 알수 있게 4H, 3H, 1H로 점등되고 최하점인 1H위치에서 경보음을 내도록 구성되어 잔량이 사용할 수 있는 시간에 점등되고 1H위치점에서만 경보음을 발하여 사용자가 알 수 있도록 하였다.The alarm device 40 is configured to emit an alarm sound at the lowest point of 1H position, which is lit at 4H, 3H, and 1H so as to receive a signal sensed by the sensitive device 10, so as to know the replacement time and the remaining amount of the contents. It lights up at the time that is possible and an alarm sounds only at 1H position so that the user can know.

상기에서 전자식 감응 장치(10)의 원리는 일반적으로 사용되는 원리를 이용한 것이다.The principle of the electronic sensitive device 10 in the above is to use the principle generally used.

상기의 구조에 부표에 의해 상하로 작동되는 피사체가 본체부의 상부 좌우측에 떨어져 있는 광섬유를 연결하여 유량을 감지할 수 있다.The upper left of the main body of the subject operated up and down by a buoy in the above structure The flow rate can be detected by connecting the optical fiber which is separated on the right side.

제3도 내지 제4도에 나타낸 본 고안의 압축용기 내의 가스 잔량감지 및 경보장치는 광섬유를 이용한 구조를 상세히 설명한다.Gas residual amount detection and warning device in the compression vessel of the present invention shown in Figures 3 to 4 will be described in detail the structure using the optical fiber.

일반 압축용기에 있어서, 용기와 밸브의 사이에 장착되는 중간 부재(50)와, 상기의 중간부재 사이에 장착되며 전송선로(20)와 감지부를 지지하는 고정대(55)와, 용기의 압력 누설을 방지하게 실링이 끼워진 연결부재(56)와, 감지부에서 감지된 신호를 받아 용기내의 액체량을 나타내는 경보장치(40)로 구성되어 있다.In the general compression container, an intermediate member 50 mounted between the container and the valve, a fixing table 55 mounted between the intermediate member and supporting the transmission line 20 and the sensing unit, and a pressure leakage of the container. It consists of a connecting member 56 to prevent the sealing, and an alarm device 40 indicating the amount of liquid in the container in response to the signal detected by the detection unit.

상기의 중간부재(55)는 기존의 용기에 장착이 쉽도록 같은 하부에는 숫나사가 상부에는 암나사가 장착되고 측면에는 연결부재(56)가 장착되도록 암나사가 형성되어 있다.The intermediate member 55 is a female screw is formed so that the male screw is mounted on the upper side and the female screw is mounted on the upper side and the connection member 56 is mounted on the side to facilitate mounting in the existing container.

상기의 고정대(55)는 상기의 중간부재의 상부 중앙에 장착되며 내부면에는 전송선로(20)가 삽설되고, 최고점과 하부의 중간점과 하부점에 감지부(61,62,63)가 설치되어 있다.The stator 55 is mounted at the upper center of the intermediate member, and the transmission line 20 is inserted in the inner surface, and the sensing units 61, 62, and 63 are installed at the midpoint and the lower point of the highest point and the lower part. It is.

상기의 연결부재(56)는 중간부재의 측면에 장착되며 전송로가 용기의 외부로 설치되게 실링이 끼워져 외부로 누설되지 않도록 장착된다.The connecting member 56 is mounted on the side of the intermediate member and the sealing is fitted so that the transmission path is installed to the outside of the container so as not to leak to the outside.

상기의 감지부(61,62,63)는 광섬유를 이용한 감지센서가 장착되어 F, 3H, 1H위치점에 설치하여 제2도에 나타낸 부표에 의해 상하로 움직이는 피사체에 의해 본체부의 상부에 설치된 광섬유를 연결하여 줌으로써 유량의 위치를 감지하여 경보장치(40)로 빛을 보낸다.The sensing units 61, 62, and 63 are equipped with a sensor using an optical fiber and are installed at the F, 3H, and 1H position points, and the optical fiber is installed on the upper part of the main body by a subject moving up and down by a buoy shown in FIG. Send a light to the alarm device 40 by detecting the position of the flow rate by connecting the.

상기 경보장치(40)는 빛을 보내는 광섬유부와 빛을 받는 광섬유가 전송선로에 삽설되며 경보장치는 각위치점의 위치에 따라 빛을 감지하여 위치점에 점등된다. 또한 최하점에 도달하면 점등과 신호음 발산한다. 즉 액체가 최고점에 있으면 감지부에서 감지하여 경보장치의 최고점인 감지부가 장착된 'F'위치점(61)에 점등되고, 하부의 중간점에 액체가 내려오면 감지부가 장착된 '3H'위치점(62)에 점등되고, 하부점인 감지부가 장착된 '1H'위치점(63)에 액체가 내려오면 점등과 동시에 경보음이 발한다.The alarm device 40 is inserted into the optical fiber unit for transmitting the light and the optical fiber receiving the light, the alarm device detects the light in accordance with the position of each location point is turned on the location point. It also lights up and emits a beep when the lowest point is reached. That is, when the liquid is at the highest point, the detector detects it and lights up at the 'F' position point 61 equipped with the detector, which is the highest point of the alarm device. Lights up at 62, and when the liquid comes down to the '1H' position point 63 equipped with a sensing unit which is a lower point, it lights up and an alarm sounds.

본 고안은 상기 실시예를 통하여 설명한 바와 같이, 본 고안은 액화 가스를 수용하는 가스통, 산소통 등의 압축용기내의 수용물에 대한 잔유량을 감지하여 사용자가 잔유량을 알아 교환시기를 조기에 알 수 있는 효과가 있으므로 압축용기내의 유량측정 산업상 매우 유용한 고안이다.The present invention as described through the above embodiment, the present invention is the effect that the user can know the remaining amount of the remaining amount of oil in the compressed container, such as a gas cylinder, oxygen cylinder containing a liquefied gas to know the remaining amount of the exchange early This is a very useful design for the flow measurement industry in the compression vessel.

Claims (1)

충전된 액화가스용기내에, 부력이 작용하는 부표(14)에 의해 상하로 작동되며 안쪽면에 자석이 장착된 피사체(12)와 부표(14)에 의해 상하로 움직이는 피사체내의 자력을 감지하는 전자식 감응장치(10)와, 상기의 감지한 신호를 전송하는 전송선로(20)와, 압축용기상부의 장착되어 전송선로를 내부에서 외부로 나가는 부분에 내압의 유실되지 않게 연결부재(56)과 고정대(55)로 구성된 중간부재(50)와, 감응장치(10)에서 감지된 신호를 판단하여 경보음을 울리거나 램프로 알려주는 경보장치(40)에 있어서, 상기 감응장치(10)는 본체부(13)상부면에 광섬유를 장착하여 유량에 따라 움직이는 부력이 작용하는 부표(14)가 상하로 움직이며 피사체(12)가 광섬유를 연결하여 주도록 한 것을 특징으로 하는 압축용기 내의 가스 잔량감지 및 경보장치.In the filled liquefied gas container, an electronic response that is operated up and down by buoy 14 acting buoyancy and sensing magnetic force in the subject 12 moving up and down by the buoy 14 and the subject 12 having a magnet mounted on its inner surface. The device 10, the transmission line 20 for transmitting the sensed signal, and the upper portion of the compression vessel is mounted on the connecting member 56 and the fixed base so as not to lose the internal pressure in the portion of the transmission line from the inside to the outside ( In the intermediate member 50 consisting of 55, and the alarm device 40 for determining the signal detected by the sensitive device 10 to sound an alarm or inform the lamp, the sensitive device 10 is the main body ( 13) Gas residual amount detection and alarm device in the compression vessel characterized in that the buoy 14, the buoyancy acting according to the flow rate is moved up and down by mounting the optical fiber on the upper surface and the subject 12 connects the optical fiber. .
KR2019960001681U 1996-02-02 1996-02-02 An alarm for gas tank KR200156880Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019960001681U KR200156880Y1 (en) 1996-02-02 1996-02-02 An alarm for gas tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019960001681U KR200156880Y1 (en) 1996-02-02 1996-02-02 An alarm for gas tank

Publications (2)

Publication Number Publication Date
KR970052315U KR970052315U (en) 1997-09-08
KR200156880Y1 true KR200156880Y1 (en) 1999-10-01

Family

ID=19450120

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019960001681U KR200156880Y1 (en) 1996-02-02 1996-02-02 An alarm for gas tank

Country Status (1)

Country Link
KR (1) KR200156880Y1 (en)

Also Published As

Publication number Publication date
KR970052315U (en) 1997-09-08

Similar Documents

Publication Publication Date Title
US4835522A (en) Tank inventory and leak detection system
US6964278B2 (en) Non-invasive gauge glass liquid level sensor apparatus
CN204115816U (en) For being installed in the metering system in the ozzle of tank
US4173886A (en) Gas detectors
US20070295085A1 (en) Liquid Level and Density Measurement Device
EP1979722B1 (en) Liquid level and density measurement device
US6988406B1 (en) System and method of liquid level detection
US5661228A (en) Liquid pressure and level sensing instruments
CN208366429U (en) A kind of pipe type oil-level gauge
KR200156880Y1 (en) An alarm for gas tank
EP1040324A1 (en) Liquid level detector
JP3962408B2 (en) Liquid storage tank leak inspection device
US20130180995A1 (en) Gas Cylinder with Measuring Connection
EP0417317A1 (en) Differential pressure gauge
CN208625369U (en) Liquid level detection device and water dispenser with it
TW202045912A (en) Liquid sensor and hydraulic unit
CN220751296U (en) Liquid level detection device of water tank of water purifying and drinking machine
CN219641051U (en) Liquid level meter
CN210664588U (en) Float ball type liquid level measuring device
CN218469961U (en) Non-contact liquid level sensor
EP1248086B1 (en) Liquid level detection device
CN219141951U (en) Liquid remaining sensor for container
CN215491959U (en) Liquid level detection device of foot tub
RU2045749C1 (en) Float of level gauge for tanks subject to high pressure
CN215444184U (en) Oil pan assembly and vehicle with same

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee