WO2019001096A1 - 一种改进的流体泄装装置 - Google Patents

一种改进的流体泄装装置 Download PDF

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Publication number
WO2019001096A1
WO2019001096A1 PCT/CN2018/083254 CN2018083254W WO2019001096A1 WO 2019001096 A1 WO2019001096 A1 WO 2019001096A1 CN 2018083254 W CN2018083254 W CN 2018083254W WO 2019001096 A1 WO2019001096 A1 WO 2019001096A1
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WIPO (PCT)
Prior art keywords
valve
oil
magnetic
handle
plug
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PCT/CN2018/083254
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English (en)
French (fr)
Inventor
张学用
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湖南梓唯汽车环保有限公司
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Publication of WO2019001096A1 publication Critical patent/WO2019001096A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system

Definitions

  • the present invention is a fluid venting tool, and more particularly to an improved fluid venting device.
  • the automatic fluid venting gun In order to quickly drain the engine oil, the automatic fluid venting gun has been used in conjunction with the fluid venting valve installed on the sump, such as the engine oil sump, rear axle, and gearbox.
  • the existing fluid discharge gun has the advantages of complicated structure, large number of components, large occupied space, high production cost, inconvenient operation, and difficulty in failure during use.
  • the object of the present invention is to provide an improved fluid venting apparatus which is simple in structure and convenient in handling fluids, in view of the problems of the prior art.
  • the improved fluid venting device comprises a fluid venting gun and a magnetic oil slick valve assembly for use therewith;
  • the fluid venting gun includes a handle provided with a fluid passage, and one end of the handle is laterally provided with an oil needle rotatably connected with the fluid passage, and the oil needle is disposed between the front end of the oil needle and the handle a dial with a rotatable and axially limiting position, the oil needle being fixed to the handle by a screw connected to the rear end thereof, the front end of the dial wheel being provided with an external thread;
  • the magnetic oil purification valve assembly comprises a magnetic oil purification valve, a plug and a dustproof cap matched with the magnetic oil purification valve;
  • the magnetic oil purification valve comprises a tubular valve body, and a guiding bushing is arranged in the front part of the valve body a valved seat is arranged in the middle of the valve body, and a valve core is arranged in the guide bushing.
  • the head of the valve core is provided with a conical sealing gasket matched with the valve seat, the head of the valve core and the guiding shaft
  • the valve core between the sleeves is sleeved with a spring.
  • the conical sealing head of the valve core head is close to the valve seat to close the taper hole of the valve seat, and the side wall of the front part of the valve body is provided with an opening.
  • the outer wall of the central portion of the valve body is provided with an external thread
  • the rear portion of the valve body is provided with a valve tail
  • the valve tail is provided with an internal threaded plugging hole communicating with the tapered hole of the valve seat;
  • the plug includes a plug body and is disposed at a magnetic block on the plug body, a sealing gasket disposed at the front end of the plug body to close the magnetic block, a hexagonal hole provided at the rear end of the plug body, and a magnetic oil valve disposed on the sidewall of the plug body
  • the internal thread of the plug hole of the valve tail cooperates with the external thread;
  • the dust cap includes a cap body that cooperates with the valve tail of the valve body.
  • a sealing ring is disposed between the oil needle and the handle and the dial.
  • the dial wheel is provided with an axial sealing ring.
  • a gasket is disposed between the screw and the oil needle.
  • the front end of the guiding sleeve is provided with an inlet, and the side wall is provided with an outlet.
  • a sealing gasket is arranged on the valve tail and a concave hole is formed in the outer wall.
  • the inner wall of the cap body of the dust cap is provided with a protrusion that cooperates with a recessed hole in the valve tail.
  • the fluid venting gun adopts an oil needle which is rotatably connected with the fluid passage at one end of the handle and a dial wheel which is arranged at the oil needle.
  • the utility model has the advantages of simple structure, reliable use, less failure, low production cost, and light and flexible.
  • the advantage of simple and convenient operation is applicable to the effective operation of various states of the automobile engine and the chassis.
  • the magnetic oil purifying valve can be applied to the oil sump of different wall thicknesses. Due to the installation of multiple seals during use, the fluid leakage phenomenon is completely eliminated, and the impurities in the oil are adsorbed by magnetic force to purify the oil quality. Some vehicles can complete the maintenance without disassembling the oil pan protection plate, and do not generate fluid leakage during the maintenance process, which plays a certain role in environmental protection.
  • the dust-proof cap can effectively protect the magnetic net oil valve from the influence of dirt, ensuring normal use and prolonging the service life.
  • Figure 1 is a schematic view showing the structure of a fluid venting gun of the present invention.
  • Figure 2 is an external view of the fluid venting gun of the present invention.
  • Figure 3 is an external view of the oil needle in the fluid venting gun of the present invention.
  • FIG. 4 is a schematic structural view of a magnetic oil purification valve in the magnetic oil purification valve assembly of the present invention.
  • Figure 5 is a schematic view showing the structure of a plug in the magnetic oil purification valve assembly of the present invention.
  • Figure 6 is a schematic view showing the structure of a dustproof cap in the magnetic oil purification valve assembly of the present invention.
  • Fig. 7 is a schematic view showing the assembled state of the magnetic oil valve assembly of the present invention.
  • Figure 8 is a schematic view showing the state of use of the fluid venting apparatus of the present invention.
  • the improved fluid venting apparatus of the present invention includes a fluid venting gun and a magnetic oil sump valve assembly for use therewith.
  • the fluid venting gun as shown in FIG. 1 - FIG. 3, comprises a handle 3 provided with a fluid passage 2, the lower end of the handle 3 is provided with a tubing joint 1 communicating with the fluid passage 2, and the upper end of the handle 3 is laterally disposed.
  • An oil needle 12 that is rotatable and communicates with the fluid passage 2 through a radial fluid discharge outlet 1205.
  • the oil needle 12 is disposed between the front end convex ring 1206 of the oil needle 12 and the handle 3 to be rotatable and
  • the axially-positioned dial wheel includes a sleeve 9 that cooperates with the oil needle 12, and a dial 8 that is fixed to the sleeve 9 by a pin 7.
  • the dial 8 can also be formed by other means such as injection molding, glued connection.
  • the oil needle 12 is fixed on the sleeve 9 by a screw 5 which is screwed to the rear end thereof.
  • the front end of the sleeve 9 of the dial is provided with an external thread 11, and the oil needle 12 is
  • An O-ring 6 is disposed between the handle 3 and the sleeve 9 of the dial, and the sleeve 9 of the dial is provided with an axial sealing ring 10, and the screw 5 is disposed between the screw 5 and the oil needle 12.
  • the gasket 4, the gasket 4 and the handle 3 maintain a certain gap ⁇ ; the oil needle 12 (see FIG.
  • the ejector pin 1203 has a fluid discharge inlet 1204 on both sides of the ejector pin 1203.
  • the front outer wall of the pipe body 1201 is provided with a groove 1202 in the sleeve 9 and three fluid discharge outlets 1205 (may also be provided) Uniformly disposed on the rear side wall of the tubular body 1201.
  • the magnetic oil purification valve assembly used in combination with the fluid venting gun of the present invention comprises a magnetic oil purification valve 13, a plug 14 matched with the magnetic oil purification valve 13 and a dustproof cap 15;
  • the magnetic oil purification valve 13 is as shown in the figure 4, comprising a tubular valve body 1303, a front end of the valve body 1303 is provided with a guide bushing 1301 having a front end with an inlet 1313 and an outlet 1312.
  • the central portion of the valve body 1303 is provided with a conical hole-shaped valve seat 1309.
  • the sleeve 1301 is provided with a valve core 1302.
  • the head of the valve core 1302 is provided with a circular arc recess 1316 and a conical sealing gasket 1306 matched with the valve seat 1309.
  • the head of the valve core 1302 is between the head and the guiding sleeve 1301.
  • the valve core 1302 is sleeved with a spring 1304.
  • the tapered sealing gasket 1306 of the head of the valve core 1302 closes the valve seat 1309 to close the tapered hole of the valve seat 1309, and the side wall of the front portion of the valve body 1303 is disposed.
  • the central outer wall of the valve body 1303 is provided with an external thread 1310 which is pre-coated with a special thread sealant.
  • the rear part of the valve body 1303 is provided with a hexagonal valve tail 1307 and a gasket 1305, and the valve tail 1307 a blocking hole 1314 having an internal thread 1315 communicating with a tapered hole of the valve seat 1309, and a concave hole 1308 at the outer wall of the valve tail 1307; the plug 14
  • a plug body 1401, a magnetic block 1402 disposed on the plug body 1401, and a gasket 1405 disposed at the front end of the plug body 1401 for closing the magnetic block 1402 are disposed inside the rear end of the plug body 1401.
  • the plug 14 and the dust cap 15 are combined, as shown in FIG. 7, the tool is engaged with the hexagonal hole 1403 of the plug 14, and the plug body 1401 of the plug 14 is passed through the side wall.
  • the external thread 1404 is fixed in the blocking hole 1314 of the valve body 1303 on the valve tail 1307 in cooperation with the internal thread 1315 of the valve tail 1307 blocking hole 1314 of the magnetic oil purification valve 13, and the sealing gasket 1405 is pressed to seal, and the dustproof cap is sealed.
  • the cap body 1501 of the cover 15 covers the plug 14 on the valve tail 1307 of the valve body 1303, and is fastened by a projection 1502 on the inner wall thereof to the recessed hole 1308 of the outer wall of the valve tail 1307.
  • the magnetic oil valve assembly when the present invention is used, the magnetic oil valve assembly must be pre-coated with the external thread 1310 of the special thread sealant through the magnetic oil purification valve 13 at the bottom A of the fuel tank.
  • the magnetic block 1402 in the plug 14 makes The valve body generates magnetism, which can adsorb metal impurities in the oil of the fuel tank, so that the oil can be purified.
  • the fluid discharge gun is connected with the oil pipe of the "fluid discharge cleaning machine" through the oil pipe joint 1 at the lower end of the handle 3.
  • the dust cap 15 and the plug 14 are first removed from the valve tail 1307 of the magnetic oil purification valve 13, and then the oil needle 12 on the fluid discharge gun is inserted into the magnetic oil purification valve 13 and the valve tail 1307 In the blocking hole 1314, one hand holds the handle 3 of the fluid venting gun, and the other hand rotates the dial 8 on the dial, using the external thread 11 on the dial sleeve 9 and the internal thread in the blocking hole 1314.
  • 1315 is connected to make the fluid discharge gun and the magnetic oil purification valve 13 in a locked state of connection and sealing, and is sealed by the sealing ring 10, and the thimble 1203 of the oil needle 12 and the head of the valve core 1302 in the fluid discharge gun in the process.
  • the arc pocket 1316 contacts and pushes the spool 1302 against the action of the spring 1304 to advance the top, such that the tapered seal 1306 on the head of the spool 1302 leaves the valve seat 1309, opening the taper of the valve seat 1309, in the "fluid drain"
  • a part of the oil in the oil tank is guided from the magnetic oil purification valve 13 into the inlet 1313 and the side outlet 1312 of the front end of the sleeve 1301 into the valve body 1303, and another part of the oil directly from the side wall of the valve body 1303
  • the upper waist opening 1311 enters the valve body 1303, and the two parts of the oil merge and pass through the valve.
  • the taper hole of 1309 enters the oil needle 12 from the fluid discharge inlet 1204 on both sides of the ejector pin 1203 of the oil needle 12 in the fluid discharge gun, and then passes through the fluid discharge outlet 1205 on the oil needle 12, the fluid passage 2 on the handle 3, and
  • the oil pipe enters the “fluid drain cleaning machine”; when changing the oil, the oil can be reversely injected into the oil tank by operating the “fluid drain cleaning machine”.
  • the fluid discharge gun is removed from the valve tail 1307 of the magnetic oil purification valve 13 by the reverse dial 8, and the valve core 1302 is reset by the action of the spring 1304, and the tapered hole of the valve seat 1309 is closed.
  • the handle 3 can be easily rotated relative to the oil needle 12, and can be adapted to different directions of operation.
  • the groove 1202 on the outer wall of the ejector pin 1203 reduces the resistance when the dial 4 is rotated.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

一种流体泄装装置，包括流体泄装枪和与其配套使用的磁力净油阀组件；流体泄装枪包括设有流体通道（2）的手柄（3），手柄的一端横向设有可转动且与流体通道连通的油针（12），油针上位于油针的前端与手柄之间套设有可转动且轴向限位的拨轮，油针通过与其后端连接的螺钉（5）固定在手柄上，拨轮的前端设有外螺纹（11）；磁力净油阀组件包括磁力净油阀（13）、与磁力净油阀相配合的堵头（14）和防尘盖帽（15）。该流体泄装装置具有结构简单，操作方便，使用寿命长等优点。

Description

一种改进的流体泄装装置 技术领域
本发明属于流体泄装工具，具体涉及一种改进的流体泄装装置。
背景技术
车辆在维保时，为了快速装泄机油，目前已采用自动化流体泄装枪与安装在机油箱如汽车发动机油底壳、后桥、变速箱上的流体泄装阀相配合进行换油作业。现有的流体泄装枪存在结构复杂，零部件较多，占用空间大，生产成本高，不便于操作，使用时易出故障的不足。
发明内容
本发明的目的是针对现有技术存在的问题，提供一种结构简单，装泄流体操作方便的改进的流体泄装装置。
本发明的技术方案是这样实现的：
本发明提供的改进的流体泄装装置包括流体泄装枪和与其配套使用的磁力净油阀组件；
所述流体泄装枪，包括设有流体通道的手柄，手柄的一端横向设有可转动且与流体通道连通的油针，所述油针上位于油针的前端与所述手柄之间套设有可转动且轴向限位的拨轮，所述油针通过与其后端连接的螺钉固定在手柄上，所述拨轮的前端设有外螺纹；
所述磁力净油阀组件，包括磁力净油阀、与磁力净油阀相配合的堵头和防尘盖帽；所述磁力净油阀包括管状阀体，阀体前部内设有导向轴套， 阀体的中部内设有锥孔状的阀座，导向轴套内设有阀芯，阀芯的头部设有与阀座相配合的锥形密封垫，阀芯的头部与导向轴套之间的阀芯上套有弹簧，在弹簧的作用下阀芯头部的锥形密封垫紧贴阀座将阀座的锥孔封闭，阀体前部的侧壁上设有开孔，阀体的中部外壁设有外螺纹，阀体的后部设有阀尾，阀尾设有与阀座的锥孔连通的带内螺纹的堵孔；所述堵头包括堵头本体、设在堵头本体上的磁块、设在堵头本体前端将磁块封闭的密封垫、设在堵头本体后端的内六角孔和设在堵头本体侧壁上的与所述磁力净油阀上阀尾的堵孔的内螺纹相配合外螺纹；所述防尘盖帽包括与所述阀体的阀尾相配合的盖帽本体。
所述油针与所述手柄和拨轮之间均设有密封圈。
所述拨轮上设有轴向密封圈。
所述螺钉与油针之间设有垫片。
所述导向轴套前端设有入口，侧壁设有出口。
所述阀尾上设有密封垫且外壁设有凹孔。
所述防尘盖帽的盖帽本体内壁上设有与所述阀尾上的凹孔相配合的凸块。
本发明的有益效果：
1、流体泄装枪采用在手柄的一端横向设置可转动且与流体通道连通的油针和在油针在设置拨轮，具有结构简单，使用可靠、故障少，生产成本低，且轻巧灵便，操作简单方便的优点,能适用汽车发动机和底盘各种状态下有效操作。
2、磁力净油阀可适用于不同壁厚的机油底壳，使用过程中因设置多道密封，从而从根本杜绝流体泄漏现象，同时通过磁力作用吸附机油中的杂 质，净化油质，对于某些车辆，在不拆卸机油底壳保护板的情况下就可以完成维保，且在维保过程中不产生流体外泄现象，在环境保护方面起到一定的作用。
3、防尘盖帽可有效保护磁力净油阀不受污物影响，保证能正常使用和延长使用寿命。
4、本装置成套后能适用家庭和修理店换油；修理无须配备各种型号工具，降低制造成本和社会成本；完全做到废油、新油无缝对接。
下面结合附图进一步说明本发明的技术方案。
附图说明
图1是本发明流体泄装枪的结构示意图。
图2是本发明流体泄装枪的外观图。
图3是本发明流体泄装枪中油针的外观图。
图4是本发明磁力净油阀组件中磁力净油阀的结构示意图。
图5是本发明磁力净油阀组件中堵头的结构示意图。
图6是本发明磁力净油阀组件中防尘盖帽的结构示意图。
图7是本发明磁力净油阀组件组合状态示意图。
图8是本发明流体泄装装置的使用状态示意图。
具体实施方式
本发明改进的流体泄装装置包括流体泄装枪和与其配套使用的磁力净油阀组件。
所述流体泄装枪，如图1——图3所示，包括设有流体通道2的手柄3，手柄3的下端设有与流体通道2连通的油管接头1，手柄3的上端横向设有可转动且通过径向的流体泄流出口1205与流体通道2连通的油针12， 所述油针12上位于油针12的前端凸环1206与所述手柄3之间套设有可转动且轴向限位的拨轮，拨轮包括与油针12配合的轴套9、通过销钉7固定在轴套9上的拨环8，拨环8也可采用其他方式如注塑成型，胶接连接等方式设在轴套9上；所述油针12通过与其后端螺纹连接的螺钉5固定在手柄3上，拨轮中轴套9的前端设有外螺纹11，所述油针12与所述手柄3和拨轮的轴套9之间均设有O型密封圈6，所述拨轮的轴套9上设有轴向密封圈10，所述螺钉5与油针12之间设有垫片4，垫片4与手柄3之间保持一定间隙α；所述油针12(参见图3)包括管体1201，管体1201的前端设有人字形(也可设为其它形状)顶针1203，顶针1203的两侧为流体泄流进口1204，管体1201的前部外壁上设有一圈位于轴套9内的凹槽1202，流体泄流出口1205为三个(也可设为不同数量)均匀设置在管体1201的后部侧壁上。
与本发明流体泄装枪配套使用的磁力净油阀组件，包括磁力净油阀13、与磁力净油阀13相配合的堵头14和防尘盖帽15；所述磁力净油阀13如图4所示，包括管状阀体1303，阀体1303前部内设有前端带入口1313侧面带出口1312的导向轴套1301，阀体1303的中部内设有锥孔状的阀座1309，导向轴套1301内设有阀芯1302，阀芯1302的头部设有圆弧凹坑1316和与阀座1309相配合的锥形密封垫1306，阀芯1302的头部与导向轴套1301之间的阀芯1302上套有弹簧1304，在弹簧1304的作用下阀芯1302头部的锥形密封垫1306紧贴阀座1309将阀座1309的锥孔封闭，阀体1303前部的侧壁上设有腰形开孔1311，阀体1303的中部外壁设有已预涂特殊螺纹密封胶的外螺纹1310，阀体1303的后部设有六边形的阀尾1307及密封垫1305，阀尾1307设有与阀座1309的锥孔连通的带内螺纹1315的堵 孔1314，阀尾1307外壁设有凹孔1308；所述堵头14如图5所示，包括堵头本体1401、设在堵头本体1401上的磁块1402、设在堵头本体1401前端将磁块1402封闭的密封垫1405、设在堵头本体1401后端的内六角孔1403和设在堵头本体1401侧壁上的外螺纹1404；所述防尘盖帽15如图6所示，包括盖帽本体1501、设在盖帽本体1501内壁上的凸块1502。磁力净油阀13、堵头14和防尘盖帽15组合时，如图7所示，用工具与堵头14上的内六角孔1403配合，将堵头14的堵头本体1401通过侧壁上的外螺纹1404与磁力净油阀13上阀尾1307堵孔1314的内螺纹1315相配合固定在阀体1303阀尾1307上的堵孔1314内，密封垫1405受到挤压实现密封，防尘盖帽15的盖帽本体1501盖在阀体1303的阀尾1307上将堵头14覆盖，并利用其内壁上的凸块1502卡在阀尾1307外壁的凹孔1308内固定。
见图8，本发明使用时，须将磁力净油阀组件通过磁力净油阀13已预涂特殊螺纹密封胶的外螺纹1310安装在油箱底部A,平时，堵头14中的磁块1402使阀体产生磁性，可吸附油箱机油中的金属杂质，使机油得以净化，流体泄装枪则通过手柄3下端的油管接头1与“流体泄装清洗机”的油管连接。当更换机油时，先将防尘盖帽15和堵头14从磁力净油阀13的阀尾1307上取下，然后将流体泄装枪上的油针12伸入磁力净油阀13阀尾1307的堵孔1314内，一只手握住流体泄装枪的手柄3，另一只手转动拨轮上的拨环8，利用拨轮轴套9上的外螺纹11与堵孔1314内的内螺纹1315连接，使流体泄装枪与磁力净油阀13处于连接、密封的锁定状态，并通过密封圈10密封，此过程中流体泄装枪中油针12的顶针1203与阀芯1302头部的圆弧凹坑1316接触，并推动阀芯1302克服弹簧1304的作用向前顶，使得阀芯1302头部上的锥形密封垫1306离开阀座1309，打开阀座1309 的锥孔，在“流体泄装清洗机”的抽吸下，油箱内的机油一部分从磁力净油阀13中导向轴套1301前端的入口1313和侧面出口1312进入阀体1303内，同时另一部分机油直接从阀体1303侧壁上的腰形开孔1311进入阀体1303内，两部分机油汇合后通过阀座1309的锥孔从流体泄装枪中油针12的顶针1203两侧的流体泄流进口1204进入油针12内，再经油针12上的流体泄流出口1205、手柄3上的流体通道2和油管进入“流体泄装清洗机”；换机油时，可通过操作“流体泄装清洗机”将机油反向注入油箱内。更换机油完毕，通过反转拨环8从磁力净油阀13的阀尾1307取下流体泄装枪后，阀芯1302在弹簧1304的作用下复位，阀座1309的锥孔关闭。
由于垫片4与手柄3之间保持一定间隙α，手柄3可以相对油针12轻松转动，可以适应不同方向的操作。顶针1203外壁上的凹槽1202可减少拨轮4旋转时的阻力。

Claims (7)

  1. 一种改进的流体泄装装置，其特征是包括流体泄装枪和与其配套使用的磁力净油阀组件；
    所述流体泄装枪，包括设有流体通道的手柄，手柄的一端横向设有可转动且与流体通道连通的油针，所述油针上位于油针的前端与所述手柄之间套设有可转动且轴向限位的拨轮，所述油针通过与其后端连接的螺钉固定在手柄上，所述拨轮的前端设有外螺纹；
    所述磁力净油阀组件，包括磁力净油阀、与磁力净油阀相配合的堵头和防尘盖帽；所述磁力净油阀包括管状阀体，阀体前部内设有导向轴套，阀体的中部内设有锥孔状的阀座，导向轴套内设有阀芯，阀芯的头部设有与阀座相配合的锥形密封垫，阀芯的头部与导向轴套之间的阀芯上套有弹簧，在弹簧的作用下阀芯头部的锥形密封垫紧贴阀座将阀座的锥孔封闭，阀体前部的侧壁上设有开孔，阀体的中部外壁设有外螺纹，阀体的后部设有阀尾，阀尾设有与阀座的锥孔连通的带内螺纹的堵孔；所述堵头包括堵头本体、设在堵头本体上的磁块、设在堵头本体前端将磁块封闭的密封垫、设在堵头本体后端的内六角孔和设在堵头本体侧壁上的与所述磁力净油阀上阀尾的堵孔的内螺纹相配合外螺纹；所述防尘盖帽包括与所述阀体的阀尾相配合的盖帽本体。
  2. 根据权利要求1所述的改进的流体泄装装置，其特征是所述油针与所述手柄和拨轮之间均设有密封圈。
  3. 根据权利要求1或2所述的改进的流体泄装装置，其特征是所述拨轮上设有轴向密封圈。
  4. 根据权利要求3所述的改进的流体泄装装置，其特征是所述螺钉与油针之间设有垫片。
  5. 根据权利要求4所述的改进的流体泄装装置，其特征是所述导向轴套前端设有入口，侧壁设有出口。
  6. 根据权利要求5所述的改进的流体泄装装置，其特征是所述阀尾上设有密封垫且外壁设有凹孔。
  7. 根据权利要求6所述的改进的流体泄装装置，其特征是所述防尘盖帽的盖帽本体内壁上设有与所述阀尾上的凹孔相配合的凸块。
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