WO2021031530A1 - 一种航油测水器针筒 - Google Patents

一种航油测水器针筒 Download PDF

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Publication number
WO2021031530A1
WO2021031530A1 PCT/CN2020/072397 CN2020072397W WO2021031530A1 WO 2021031530 A1 WO2021031530 A1 WO 2021031530A1 CN 2020072397 W CN2020072397 W CN 2020072397W WO 2021031530 A1 WO2021031530 A1 WO 2021031530A1
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WIPO (PCT)
Prior art keywords
piston
rod
measuring device
aviation fuel
water measuring
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PCT/CN2020/072397
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English (en)
French (fr)
Inventor
刘晋苏
顾群
张黎明
卢圣央
沈春羽
陈�峰
王薇
Original Assignee
中国航空油料有限责任公司浙江分公司
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Application filed by 中国航空油料有限责任公司浙江分公司 filed Critical 中国航空油料有限责任公司浙江分公司
Publication of WO2021031530A1 publication Critical patent/WO2021031530A1/zh

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G01N2001/1418—Depression, aspiration
    • G01N2001/1427—Positive displacement, piston, peristaltic

Definitions

  • the invention belongs to the technical field of aviation kerosene (also known as aviation kerosene, No. 3 jet fuel GB 6537-2018, NO. 3 Jet Fuel) detection technology, and specifically relates to a jet fuel water meter syringe.
  • aviation kerosene also known as aviation kerosene, No. 3 jet fuel GB 6537-2018, NO. 3 Jet Fuel
  • the existing imported water measuring device syringe is made of imported plastics, it is difficult to absorb oil, the syringe does not slide smoothly, and the air leakage causes low accuracy. It does not meet the 5ml requirement, which affects the daily oil quality inspection operation and the price Higher.
  • the invention patent application CN10031260A discloses a closed circuit sampler dedicated to the quality inspection of aviation fuel, and specifically discloses that the sampler includes an aviation fuel inlet base, a glass tube, a cap assembly hinged on the upper end of the glass tube, and a removable A ball valve body connected to the bottom of the base, a handle assembly detachably connected to one side of the base, and a handle assembly arranged on the other side of the base and communicated with the inside of the glass cylinder.
  • the ball valve core inside the ball valve body Connecting to the jet fuel inlet of the base, the center of the ball spool has a vertical spool through hole, and the spool through hole is detachably provided with a filter baffle.
  • the handle assembly includes a rotating shaft and a handle connected to the rotating shaft.
  • the rotating shaft is on the base.
  • the bottom of the seat is coaxially and detachably connected with the valve stem.
  • the closed-circuit sampler is used to solve the problem that the chemical water meter is easy to fall off and fall into the oil pipeline, but does not solve the technical problem of the water meter syringe.
  • the utility model patent CN202066791U discloses a vacuum-type chemical water measuring device, and specifically discloses that the device includes a closed-circuit sampler, the inner cavity of the closed-circuit sampler is fixedly provided with a syringe, the tail end of the syringe is connected with one end of the connecting tube, and the head of the syringe A chemical water measuring device is arranged in the part; the other end of the connecting pipe is connected with a vacuum device, and the vacuum device is provided with a stretching rod.
  • the inner cavity of the syringe is provided with a liquid indicating ball.
  • the syringe adopts a conventional barrel type syringe, and the power of the syringe to extract jet fuel is realized by drawing the drawing rod of the vacuum device.
  • the syringe has the above technical problems.
  • the present invention proposes a jet cylinder of an aviation fuel water measuring device, which has good sealing performance and solves the problems of oil leakage, poor operation of oil extraction, and low precision.
  • the invention provides a jet cylinder for a jet fuel water measuring device, which comprises a chemical water measuring device connector, a shell with openings at both ends, a transparent inner tank with openings at both ends, and a piston assembly; the chemical water measuring device connector is arranged on the One end of the shell, the inner shell is placed in the shell; the piston assembly can expand and contract in the inner shell, and is used to draw oil from the chemical water meter joint into the inner shell; A window is opened in the expansion and contraction direction of the piston assembly; the piston assembly and the other end of the housing are locked by a fixed nut, which can seal both ends of the inner tank against the Between the chemical water meter connector and the fixed nut.
  • the piston assembly includes an inner rod, a piston, a gasket, an outer rod, and a handle; one end of the inner rod has a thread for screwing the handle, and the other end of the inner rod has a top plate; the piston And the gasket are sleeved on the inner rod, and the piston is provided between the top piece and the gasket; the outer rod is sleeved outside the inner rod, when the handle When the inner rod is locked, both ends of the outer rod are tightened between the handle and the washer, and the piston is tightened between the top piece and the washer; The rod and the outer rod extend into the inner liner from the through hole of the fixed nut and expand and contract in the inner liner to drive the piston to move in the inner liner.
  • the piston includes a first piston head, a second piston head and a septum; the septum is provided between the first piston head and the second piston head.
  • the liner is a glass liner.
  • the jet cylinder of the jet fuel water gauge further includes a lock nut; the outer rod is a screw; the lock nut is sleeved outside the outer rod, and the outer diameter of the lock nut is larger than the through hole The size of the opening and the size of the opening at which the handle locks the end of the inner rod.
  • one side of the outer rod is flattened along the length direction; the through hole is an arched hole matching the shape of the outer rod.
  • a scale is provided on the flattened side of the outer rod.
  • the jet cylinder of the jet fuel water gauge further includes a first sealing ring arranged between the inner tank and the outer shell, and a second sealing ring arranged between the inner tank and the fixed nut .
  • the inner container is provided with a scale on the visible part of the window.
  • the bottom of the chemical water detector connector is provided with a connecting piece, the diameter of the connecting piece is larger than the size of the opening of the housing; the connecting piece is placed in the housing; when the fixing nut is locked, the inner The bladder presses against the connecting piece so that the connecting piece is in close contact with the housing.
  • the needle cylinder of an aviation fuel water measuring device of the present invention has simple operation, labor-saving, and high extraction accuracy:
  • the glass liner is smooth and has low resistance, which saves effort to extract aviation fuel samples and is easy to adjust the scale;
  • Scale marks can be set on the inner tank and outer rod, which is easy to quickly and accurately sample
  • Double push rod and double seal design which can not only adjust the inner tank seal, but also lock and seal;
  • Fig. 1 is a schematic diagram of the structure of a needle cylinder of an aviation fuel water measuring device according to the present invention
  • Figure 2 is a schematic plan view of the inner rod in Figure 1;
  • Fig. 3 is a schematic diagram of the plan structure of the joint of the chemical water detector in Fig. 1.
  • a jet cylinder of an aviation fuel water measuring device includes a chemical water measuring device connector 1, a housing with openings at both ends, a transparent inner bladder 3 with openings at both ends, and a piston assembly.
  • the head of the chemical water meter connector 1 is used to connect the chemical water meter. After the oil product passes through the chemical water meter, the color of the test paper is used to determine whether the jet fuel contains water and its approximate water content.
  • the chemical water meter connector 1 is arranged at one end of the housing 2, and the inner container 3 is placed in the housing 2.
  • the piston assembly can expand and contract in the inner tank 3 for drawing oil from the chemical water meter connector 1 into the inner tank 3.
  • the casing 2 is provided with a window 21 along the expansion and contraction direction of the piston assembly.
  • the piston assembly and the other end of the housing 2 are locked by a fixed nut 4, and after the fixed nut 4 is locked, the two ends of the inner tank 3 can be sealed tightly against the chemical water meter connector 1 and the fixed nut 4.
  • the piston assembly is pulled, the oil can pass through the chemical water meter into the joint of the chemical water meter, and then be drawn into the inner bladder 3 through the outer shell opening and the inner bladder opening.
  • the tester can check the amount of oil drawn in the inner tank through the window.
  • the inner container 3 is provided with a scale on the visible part of the window 21.
  • the bottom of the chemical water detector connector 1 is provided with a connecting piece 11 (as shown in FIG. 3 ).
  • the diameter of the connecting piece 11 is larger than the size of the opening of the housing 2.
  • the connecting piece 11 is placed in the housing 2, and the head end of the chemical water meter connector extends out of the housing 2 to connect the chemical water meter.
  • the chemical water detector is an existing chemical water detector structure, which is not described in detail herein.
  • the connecting piece 11 is large enough to cover the entire shell opening. When the fixing nut 4 is locked, the inner liner 3 presses the connecting piece 11 so that the connecting piece 11 is in close contact with the shell 2 , To prevent oil spills.
  • a first sealing ring is provided between the inner container 3 and the outer casing 1, and the first sealing ring is a rubber sealing ring.
  • the first sealing ring is placed between the connecting piece 11 and the inner liner 3 to facilitate the seal of the inner liner 3 to tightly tighten the connecting piece 11 and prevent oil from overflowing from the inside and outside of the inner liner 3 .
  • the piston assembly includes an inner rod 5, a piston 6, a gasket 7, an outer rod 8, and a handle 9.
  • the inner rod 5 has a thread at one end for threaded connection with the handle 9, and the other end of the inner rod 5 has a top piece 51 (as shown in FIG. 2).
  • the piston 6 and the gasket 7 are both sleeved on the inner rod 5, and the piston 6 is provided between the top plate 51 and the gasket 7.
  • the outer rod 8 is sleeved outside the inner rod 5.
  • the inner rod 5 and the outer rod 8 extend into the inner liner 3 from the through hole 41 of the fixing nut 4 and expand and contract in the inner liner 3 to drive the piston 6 to move in the inner liner 3.
  • the tester tightens the handle 9 to the end of the inner rod 5 so that the handle 9 squeezes the outer rod 8 toward the piston 6 until the piston is compressed to ensure that the piston assembly can effectively extract oil.
  • the piston 6 includes a first piston head 61, a second piston head 63 and a spacer 62.
  • the spacer 62 is provided between the first piston head 61 and the second piston head 63.
  • the first piston head 61, the second piston head 63, and the spacer 62 are a single independent component, which is connected to form an integral piston structure. In this way, the squeezing effect is better, and it is more labor-saving.
  • the two ends of the piston can expand two times after being pressed, and the sealing effect is better.
  • the piston may also have only one complete molded part composed of the first piston head and the second piston head, which requires a greater pressing force.
  • the first piston head 61 and the second piston head 63 adopt rubber piston heads.
  • the spacer 62 uses a rubber ring.
  • the liner 3 is a glass liner, which is visible on the one hand, and on the other hand, the wall of the liner is smooth and has low resistance, which saves effort when pulling the piston assembly. In addition, the glass liner is easy to clean and can be used repeatedly.
  • the housing 2, the chemical water meter connector 1, the fixing nut 4, the inner rod 5, the outer rod 8, and the handle 9 can all be made of stainless steel, with long service life and durability .
  • a 5ML scale line can be engraved on the outside of the shell. Under the condition that the scale of the inner tank cannot be seen clearly, the required amount of oil is quickly extracted through the scale line outside the outer shell.
  • the needle cylinder of an aviation fuel water measuring device further includes a locking nut 10.
  • the outer rod 8 is a screw.
  • the lock nut 10 is sleeved outside the outer rod 8, and the outer diameter of the lock nut 10 is larger than the opening size of the through hole 41 and larger than the handle 9 to lock the end of the inner rod 5 The size of the opening.
  • the lock nut 10 can be used to rotate to a suitable position to limit the handle 9 to prevent the handle 9 from being screwed in further.
  • the through hole 41 is an arched hole matching the shape of the outer rod 8. In this way, the direction in which the outer rod 8 passes through the through hole 41 of the fixing nut 4 can be restricted, and the outer rod 8 can be prevented from rotating when the piston assembly is pulled.
  • a scale is provided on the flattened side of the outer rod to facilitate accurate sampling.
  • a second sealing ring is provided between the inner liner 3 and the fixing nut 4.
  • the second sealing ring adopts a rubber sealing ring, which can prevent air from entering from the through hole during the drawing process, which will affect the drawing effect and precision of the oil product.

Abstract

一种航油测水器针筒，属于航油检测技术领域。包括化学测水器接头(1)、具有两端开口的外壳(2)、具有两端开口的透明内胆(3)以及活塞组件；化学测水器接头(1)设于外壳(2)的一端，内胆(3)置于所述外壳(2)内；活塞组件能在内胆(3)内伸缩，用于将油品自化学测水器接头(1)抽入内胆(3)中；外壳(2)沿活塞组件伸缩方向开设有视窗(21)；活塞组件与外壳(2)的另一端部通过固定螺帽(4)锁紧，固定螺帽(4)锁紧后能将内胆(3)两端密封顶紧于化学测水器接头(1)和固定螺帽(4)之间。操作简便、省力，成本低，密封性好，解决了漏油、抽取油品操作不畅、精度不高等问题。

Description

一种航油测水器针筒 技术领域
本发明属于航空煤油（又名航空煤油，3号喷气燃料GB 6537-2018，NO.3 Jet Fuel）检测技术领域，具体涉及一种航油测水器针筒。
 背景技术
航油燃料在接收、储存、发油、给航空器加注航煤准备的过程中，需要抽取航油样品进行微量水分化学测水器的检测，经过检测合格后，才能进行接收、储存、发油、给航空器加注航煤的相关作业。
现有的进口测水器针筒是由进口塑料制作，吸取油品困难、针筒滑动不畅、漏气导致精度不高，达不到5ml的要求，影响日常油品质量检查操作，且价格较高。
发明专利申请CN10031260A公开了一种专用于航油质量检测的闭路取样器，并具体公开了取样器包括开设有航油进口基座、玻璃筒、铰接于玻璃筒的上端的封盖组件、可拆卸地连接在基座底部的球阀体、可拆卸地连接在基座一侧的把手组件，以及设置于基座的另一侧，并与玻璃筒内部连通其中取液组件；球阀体内部的球阀芯连通基座的航油进口，球阀芯的中心具有竖直的阀芯通孔，阀芯通孔内可拆卸地设置有过滤挡片，把手组件包括转轴和连接于转轴上的把手，转轴于基座的下方与阀杆同轴可拆卸连接。该闭路取样器用于解决化学测水器容易脱落掉入油品管路中的问题，并未解决测水器针筒存在的技术问题。
实用新型专利CN202066791U公开了一种真空式化学测水装置，并具体公开了装置包括闭路取样器，闭路取样器的内腔固定设置有注射器，注射器的尾端与连接导管的一端连接，注射器的头部设置化学测水器；连接导管的另一端连接真空器，真空器设置有拉伸杆。所述注射器的内腔设置有液体指示球。该注射器采用常规针筒型注射器，且注射器抽取喷气燃料的动力依靠真空器拉伸杆抽拉实现。该注射器存在上述技术问题。
 技术问题
本发明针对现有技术存在的问题，提出了一种航油测水器针筒，密封性好，解决了漏油、抽取油品操作不畅、精度不高等问题。
 技术解决方案
本发明是通过以下技术方案得以实现的：
本发明提供一种航油测水器针筒，包括化学测水器接头、具有两端开口的外壳、具有两端开口的透明内胆以及活塞组件；所述化学测水器接头设于所述外壳的一端，所述内胆置于所述外壳内；所述活塞组件能在内胆内伸缩，用于将油品自所述化学测水器接头抽入内胆中；所述外壳沿所述活塞组件伸缩方向开设有视窗；所述活塞组件与所述外壳的另一端部通过固定螺帽锁紧，所述固定螺帽锁紧后能将所述内胆两端密封顶紧于所述化学测水器接头和所述固定螺帽之间。
作为优选，所述活塞组件包括内杆、活塞、垫片、外杆、手柄；所述内杆一端具有螺纹，用以螺纹连接所述手柄，所述内杆另一端具有顶片；所述活塞和所述垫片均套设于所述内杆上，且所述活塞设于所述顶片和所述垫片之间；所述外杆套设于所述内杆外，当所述手柄锁紧所述内杆时，所述外杆两端顶紧在所述手柄和所述垫片之间，且所述活塞顶紧在所述顶片和所述垫片之间；所述内杆和所述外杆自所述固定螺帽的通孔伸入到所述内胆并在内胆内伸缩，带动活塞在内胆内移动。
作为优选，所述活塞包括第一活塞头、第二活塞头和隔垫；所述隔垫设于所述第一活塞头和所述第二活塞头之间。
作为优选，所述内胆为玻璃内胆。
作为优选，航油测水器针筒还包括锁紧螺母；所述外杆为螺杆；所述锁紧螺母套设于所述外杆外，且所述锁紧螺母外径大于所述通孔开口大小和所述手柄其锁紧所述内杆端部的开口大小。
作为优选，所述外杆一侧沿长度方向削平；所述通孔为与所述外杆形状相配的拱形孔。
作为优选，所述外杆的削平侧设有刻度。
作为优选，航油测水器针筒还包括设于所述内胆与所述外壳之间的第一密封圈，以及设于所述内胆与所述固定螺帽之间的第二密封圈。
作为优选，所述内胆其于所述视窗可视部位设有刻度。
作为优选，所述化学测水器接头底部设有连接片，所述连接片直径大于外壳开口大小；所述连接片置于所述外壳内；当所述固定螺帽锁紧后，所述内胆顶紧所述连接片，使得所述连接片与所述外壳紧贴。
 有益效果
本发明一种航油测水器针筒，操作简便、省力，抽取精度高：
1)    采用玻璃内胆和不锈钢外壳的外观结构，美观耐用；
2)    玻璃内胆光滑、阻力小，能省力抽取航油样品，易调节刻度；
3)    内胆、外杆上可设有刻度标识，容易快速、准确取样；
4)    双推杆、双密封设计，既可以调节内胆密封，又可锁紧密封；
5)    造价低，为进口产品价格的三分之一；
6)    可重复使用。
 附图说明
图1为本发明一种航油测水器针筒的结构示意图；
图2为图1中内杆的平面结构示意图；
图3为图1中化学测水器接头的平面结构示意图。
 本发明的最佳实施方式
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。
如图1，一种航油测水器针筒包括化学测水器接头1、具有两端开口的外壳2、具有两端开口的透明内胆3、以及活塞组件。所述化学测水器接头1头部用于连接化学测水器，油品经过化学测水器后，根据试纸变化后的颜色确定航煤油品是否含水及大致含水量。所述化学测水器接头1设于所述外壳2的一端，所述内胆3置于所述外壳2内。所述活塞组件能在内胆3内伸缩，用于将油品自所述化学测水器接头1抽入内胆3中。所述外壳2沿所述活塞组件伸缩方向开设有视窗21。所述活塞组件与所述外壳2的另一端部通过固定螺帽4锁紧，所述固定螺帽4锁紧后能将所述内胆3两端密封顶紧于所述化学测水器接头1和所述固定螺帽4之间。当抽拉活塞组件时，可将油品通过化学测水器进入化学测水器接头，之后经过外壳开口、内胆开口被抽拉至内胆3中。测试人员可透过视窗查看内胆中油品抽入的量。为精确知晓油品抽入的量，所述内胆3其于所述视窗21可视部位设有刻度。
所述化学测水器接头1底部设有连接片11（如图3），所述连接片11直径大于外壳2开口大小。所述连接片11置于所述外壳2内，所述化学测水器接头头端伸出于外壳2外，以连接化学测水器。所述化学测水器为现有的化学测水器结构，本文不详细描述。所述连接片11足够大能遮蔽整个外壳开口，当所述固定螺帽4锁紧后，所述内胆3顶紧所述连接片11，使得所述连接片11与所述外壳2紧贴，防止油品外溢。为提高内胆顶紧于所述外壳2的密封性，在所述内胆3与所述外壳1之间设有第一密封圈，所述第一密封圈采用橡胶密封圈。具体地，所述第一密封圈置于所述连接片11与所述内胆3之间，便于所述内胆3密封顶紧所述连接片11，防止油品自内胆3中外溢出来。
所述活塞组件包括内杆5、活塞6、垫片7、外杆8、手柄9。所述内杆5一端具有螺纹，用以螺纹连接所述手柄9，所述内杆5另一端具有顶片51（如图2）。所述活塞6和所述垫片7均套设于所述内杆5上，且所述活塞6设于所述顶片51和所述垫片7之间。所述外杆8套设于所述内杆5外，当所述手柄9锁紧所述内杆5时，所述外杆8两端顶紧在所述手柄9和所述垫片7之间，且所述活塞6顶紧在所述顶片51和所述垫片7之间。所述内杆5和所述外杆8自所述固定螺帽4的通孔41伸入到所述内胆3并在内胆3内伸缩，带动活塞6在内胆3内移动。测试人员通过将手柄9旋紧于所述内杆5的端部，使得手柄9将外杆8向着活塞6处挤压，直到活塞被压紧后，确保活塞组件能有效抽取油品。
所述活塞6包括第一活塞头61、第二活塞头63和隔垫62。所述隔垫62设于所述第一活塞头61和所述第二活塞头63之间。所述第一活塞头61、所述第二活塞头63、所述隔垫62为单个独立部件，通过连接合成为整体活塞结构。这样挤压效果更佳，更省力，活塞两端受压力后能膨胀两圈，密封效果更佳。所述活塞也可以只有第一活塞头和第二活塞头构成的一个完整成型部件，这样需要更大的挤压力。所述第一活塞头61和所述第二活塞头63采用橡胶活塞头。所述隔垫62采用橡胶圈。
所述内胆3为玻璃内胆，一方面可视，一方面内胆壁光滑，阻力小，在抽拉活塞组件时更省力。另外，玻璃内胆易清洗，能反复使用。
所述外壳2、所述化学测水器接头1、所述固定螺帽4、所述内杆5、所述外杆8、所述手柄9均可采用不锈钢材质制成，使用寿命长、耐用。所述外壳外可刻有5ML刻度线。在所述内胆刻度无法看清楚的条件下，通过外壳外的刻度线快速抽取检测所需量的油品。
一种航油测水器针筒还包括锁紧螺母10。所述外杆8为螺杆。所述锁紧螺母10套设于所述外杆8外，且所述锁紧螺母10外径大于所述通孔41开口大小，且大于所述手柄9其锁紧所述内杆5端部的开口大小。在利用手柄9锁紧内杆5并将活塞顶紧后，可利用锁紧螺母10旋至合适位置，限位手柄9，避免手柄9进一步旋入。
所述外杆8一侧沿长度方向削平。所述通孔41为与所述外杆8形状相配的拱形孔。这样，可限制外杆8穿过所述固定螺帽4通孔41的方向，并防止在抽拉活塞组件时外杆8发生旋转。另外，所述外杆的削平侧设有刻度，便于准确取样。
为了提高通孔处的密封性，在所述内胆3与所述固定螺帽4之间设有的第二密封圈。所述第二密封圈采用橡胶密封圈，可避免空气在抽拉过程中从通孔处进入，继而影响油品抽拉效果和精度。
使用时顺时针扭紧手柄，顶紧活塞，不漏气后固定锁紧螺母。使用完毕后逆时针松开锁紧螺母，逆时针松开手柄。
本领域的技术人员应理解，上述描述及附图中所示的本发明的实施例只作为举例而并不限制本发明。本发明的目的已经完整有效地实现。本发明的功能及结构原理已在实施例中展示和说明，在没有背离所述原理下，本发明的实施方式可以有任何变形或修改。

Claims (10)

  1. 一种航油测水器针筒，其特征在于，包括化学测水器接头、具有两端开口的外壳、具有两端开口的透明内胆以及活塞组件；所述化学测水器接头设于所述外壳的一端，所述内胆置于所述外壳内；所述活塞组件能在内胆内伸缩，用于将油品自所述化学测水器接头抽入内胆中；所述外壳沿所述活塞组件伸缩方向开设有视窗；所述活塞组件与所述外壳的另一端部通过固定螺帽锁紧，所述固定螺帽锁紧后能将所述内胆两端密封顶紧于所述化学测水器接头和所述固定螺帽之间。
  2. 根据权利要求1所述的一种航油测水器针筒，其特征在于，所述活塞组件包括内杆、活塞、垫片、外杆、手柄；所述内杆一端具有螺纹，用以螺纹连接所述手柄，所述内杆另一端具有顶片；所述活塞和所述垫片均套设于所述内杆上，且所述活塞设于所述顶片和所述垫片之间；所述外杆套设于所述内杆外，当所述手柄锁紧所述内杆时，所述外杆两端顶紧在所述手柄和所述垫片之间，且所述活塞顶紧在所述顶片和所述垫片之间；所述内杆和所述外杆自所述固定螺帽的通孔伸入到所述内胆并在内胆内伸缩，带动活塞在内胆内移动。
  3. 根据权利要求2所述的一种航油测水器针筒，其特征在于，所述活塞包括第一活塞头、第二活塞头和隔垫；所述隔垫设于所述第一活塞头和所述第二活塞头之间。
  4. 根据权利要求1所述的一种航油测水器针筒，其特征在于，所述内胆为玻璃内胆。
  5. 根据权利要求2所述的一种航油测水器针筒，其特征在于，还包括锁紧螺母；所述外杆为螺杆；所述锁紧螺母套设于所述外杆外，且所述锁紧螺母外径大于所述通孔开口大小和所述手柄其锁紧所述内杆端部的开口大小。
  6. 根据权利要求2所述的一种航油测水器针筒，其特征在于，所述外杆一侧沿长度方向削平；所述通孔为与所述外杆形状相配的拱形孔。
  7. 根据权利要求6所述的一种航油测水器针筒，其特征在于，所述外杆的削平侧设有刻度。
  8. 根据权利要求1所述的一种航油测水器针筒，其特征在于，还包括设于所述内胆与所述外壳之间的第一密封圈，以及设于所述内胆与所述固定螺帽之间的第二密封圈。
  9. 根据权利要求1所述的一种航油测水器针筒，其特征在于，所述内胆其于所述视窗可视部位设有刻度。
  10. 根据权利要求1所述的一种航油测水器针筒，其特征在于，所述化学测水器接头底部设有连接片，所述连接片直径大于外壳开口大小；所述连接片置于所述外壳内；当所述固定螺帽锁紧后，所述内胆顶紧所述连接片，使得所述连接片与所述外壳紧贴。
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