WO2015018183A1 - 真空吸油机显示筒 - Google Patents

真空吸油机显示筒 Download PDF

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Publication number
WO2015018183A1
WO2015018183A1 PCT/CN2014/000756 CN2014000756W WO2015018183A1 WO 2015018183 A1 WO2015018183 A1 WO 2015018183A1 CN 2014000756 W CN2014000756 W CN 2014000756W WO 2015018183 A1 WO2015018183 A1 WO 2015018183A1
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WO
WIPO (PCT)
Prior art keywords
handle
groove
fork
tube
pressing rod
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Application number
PCT/CN2014/000756
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English (en)
French (fr)
Inventor
张彪
董高峰
乐海
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士商(上海)机械有限公司
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Application filed by 士商(上海)机械有限公司 filed Critical 士商(上海)机械有限公司
Publication of WO2015018183A1 publication Critical patent/WO2015018183A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/24Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing liquids, e.g. containing solids, or liquids and elastic fluids

Definitions

  • the present invention relates to a vacuum oil suction machine for vehicle maintenance and maintenance, and more particularly to a vacuum oil suction machine display cylinder having a vacuum for storing and displaying oil absorption by venturi.
  • the existing vacuum oil suction machine display cylinder mainly comprises an observation cylinder 1, a disc 7, a guide seat 2, a guide seat cap 3, a lock throat 8, a torsion bar 5, a lock cylinder 9, and a twist tube 6. , handle 4, conical spring 10, etc.
  • the observation cylinder 1 is mounted on the disc 7, and the lock cylinder 8 is arranged under the observation cylinder 1, the lock cylinder 9 is arranged in the lock throat 8, and the upper and lower guide joints are arranged between the lock cylinder 9 and the lock throat 8, and the lock core 9 is provided on the side of the lock cylinder 9 Guide and locking bosses, a conical spring 10 is arranged between the lock cylinder 9 and the lock throat 8, and is sealed and connected by a sealing member.
  • the top of the observation cylinder 1 is provided with a guiding seat 2 and a guiding seat cap 3, and the guiding seat 2 is installed.
  • the torsion bar 5 is connected to the lock cylinder 9 through the torsion tube 6, the torsion bar 5 and the torsion tube 6 are threadably connected, the torsion bar 5 is fixedly connected to the handle 4, and the torsion bar 5 is provided with a ventilation hole 35 in the middle.
  • the upper end of the vent hole 35 is provided with a sealing ring, the vent hole 35 is connected with the torsion tube 6, the lower end of the torsion tube 6 is open to the atmosphere, and the venturi vacuum generator is arranged beside the top guide seat 2 of the observation tube 1.
  • the vacuum suction unit display cylinder is integrally mounted on the oil storage tank through the lock throat 8.
  • the existing vacuum oil suction machine display cylinder use process firstly, the torsion bar 5 is rotated by the handle 4 to seal the torsion bar 5 and the torsion tube 6, that is, the inner cavity of the cylinder 1 is isolated from the atmosphere; the compressed air is used to pass the venturi vacuum.
  • the generator draws the gas in the observation cylinder 1 to form a negative pressure in the observation cylinder 1, and then sucks the automobile engine oil into the observation cylinder 1 by using a suction pipe. When the oil sucked into the observation cylinder 1 exceeds 2/3 of its volume, the oil suction is stopped.
  • the handle 4 is reversely rotated, and the vent hole 35 to which the torsion bar 5 is moved upward communicates with the observation cylinder 1, that is, the inner cavity of the oil surface in the observation cylinder 1 is connected to the atmosphere through the twist pipe 6, and the torsion bar 5 is pressed and left-handed.
  • the lock cylinder 9 is opened downward and locked to the lock throat 8 by the guide and locking bosses, so that the oil in the sight tube 1 is quickly placed in the oil storage tank.
  • the guiding and locking bosses on the lock cylinder 9 are separated from the locking throat 8 and enter the guiding groove of the locking throat 8. Under the action of the conical spring 10, the lock cylinder 9 moves upward and seals with the inner hole of the locking throat 8. And shut it off, so that the inner cavity of the observation cylinder 1 is isolated from the atmosphere.
  • the invention is to provide a vacuum oil suction machine display cylinder, which is used for solving the technical problems of complicated operation and easy operation of the display cylinder of the existing vacuum oil suction machine.
  • a vacuum suction machine display cylinder comprising an observation cylinder, a guide seat, a lock cylinder, a twist tube, a guide seat at the top of the top of the observation cylinder, and a connection lock under the guide seat
  • the twisting tube of the core is characterized in that: a pressing rod device is connected between the guiding seat and the twisting tube, wherein the connecting seat at the upper end of the pressing rod device is fixedly connected with the guiding seat, and the pressing rod at the lower end is connected with the twisting tube, and the pressing rod and the twisting rod
  • a one-way communication device is connected between the tubes.
  • the pressing rod device is a fork pressing rod device, and the fork pressing rod device comprises a handle connecting seat, a pressing rod, an operating handle, an operating handle connecting seat, a fork, a sliding pin shaft, a fork shaft, a positioning pin shaft, a positioning spring, a handle
  • the connecting rod is slidably connected to the pressing rod, and the upper end of the pressing rod is fixedly connected with the sliding pin shaft.
  • the two ends of the sliding pin shaft are respectively inserted into the sliding grooves on both sides of the fork and are slidably connected with the sliding slot, and one end of the opening of the fork is through the fork
  • the shaft and the rear side of the handle connecting seat are rotatably connected, and the other end of the fork is fixedly connected to the operating handle connecting seat, and the operating handle connecting seat is connected with the movable positioning pin shaft at the rear end surface of the positioning pin shaft boss and the inner surface of the rear end of the operating handle connecting seat
  • the positioning pin is sleeved with a positioning spring, and the operating handle connecting seat has an operating handle, and the rear end of the operating handle is fixedly connected with the positioning pin shaft, and the front end of the positioning pin passes through three positions on the front side of the fork and the handle connecting seat.
  • the holes are respectively matched with the positioning connection.
  • the pressing rod device is a rotary pressing rod device
  • the rotating pressing rod device comprises a handle rotating joint seat, a pressing rod, a handle, a sliding pin shaft, a return spring, a spiral groove or a step groove on the outer circumference of the handle rotating joint seat, and the spiral groove starts from Beginning, terminating end
  • the positioning groove is respectively arranged in the middle, and the handle is rotated to connect the sliding rod in the connecting seat, and the sliding rod shaft is fixedly connected in the middle of the pressing rod, and the two ends of the sliding pin shaft respectively penetrate into the spiral groove or the step groove of the rotating joint of the handle, and
  • the spiral groove or the step groove is slidably connected, and a return spring is arranged between the upper end of the pressure bar and the rotating joint of the handle, and the top of the pressure bar is fixedly connected with the handle.
  • the one-way valve is a one-way valve.
  • the one-way valve includes a valve body, a spring, a valve core, and a sealing member.
  • the valve core is placed in the wide body, and the valve core and the valve body are sealed and sealed by a sealing member, and the rear end surface of the valve body boss
  • a spring is arranged between the bottom surface of the valve body, and the gap between the valve body and the valve body is matched, and when the valve body is closed, the core head passes through the top of the valve body.
  • the single-way device consists of a pressure bar, a torsion tube, and a 0-type sealing member.
  • the lower end of the pressure bar has a through hole.
  • the outer circumference of the through hole is provided with a groove for placing a sealing member, and the upper end of the torsion tube is provided with a communication concave. Slot, when it is stopped, the pressure rod passes through the groove
  • the 0-type seal is matched with the inner wall of the upper end of the torsion tube.
  • the 0-type seal in the groove of the pressure rod is in the communication groove of the torsion tube, and the pressure rod is matched with the inner wall of the port on the torsion tube.
  • the connecting seat of the upper end of the pressing rod device is fixedly connected with the guiding seat, the pressing rod of the lower end is connected with the twisting tube, and a single guiding device is connected between the pressing rod and the twisting tube.
  • the vent hole on the torsion bar can be first communicated with the observation tube through the pressure bar device, and then the lock cylinder is opened to drain the oil, thereby avoiding erroneous operation, allowing for convenient operation, and passing through the positioning device in the pressure bar device and
  • the single-way device can realize the communication between the vent hole on the torsion bar and the observation tube, so that the vacuum suction machine display cylinder is connected with the oil storage tank, and the observation cylinder and the oil storage tank are vacuumed together through the venturi vacuum generator, thereby increasing the oil absorption.
  • the vacuum storage capacity of the machine is used in the field.
  • the rod mechanism, the sliding pin on the pressing rod moves along the spiral groove or the step groove on the rotating joint of the handle, and is positioned through the starting end, the ending end of the spiral groove and the transverse groove in the intermediate positioning groove or the step groove, or is pressed
  • the rod is positioned and connected with the three positioning holes on the front side of the handle connecting seat through the positioning pin shaft on the fork, so that the vent hole on the torsion bar can be correctly connected with the observation tube, and the lock core opens and drains the oil and the observation tube>exclusive storage Tank connection.
  • Figure 1 is a cross-sectional view showing a display cylinder of a conventional vacuum oil suction machine
  • Figure 2 is a partial cross-sectional view showing the structure of the first embodiment of the present invention.
  • Figure 3 is a cross-sectional view showing the structure of the one-way conduction device in an open state in the first embodiment of the present invention
  • Figure 4 is a cross-sectional view showing the structure in which the one-way conduction device and the lock cylinder are opened together in the first embodiment of the present invention
  • Figure 5 is a perspective view of a first embodiment of the present invention.
  • Figure 6 is a partial cross-sectional view showing the structure of the second embodiment of the present invention.
  • Figure 7 is a cross-sectional view showing the structure of the one-way conduction device in an open state in the second embodiment of the present invention.
  • Figure 8 is a cross-sectional view showing the structure in which the one-way conduction device and the lock cylinder are opened together in the second embodiment of the present invention
  • Figure 9 is a perspective view of the handle rotary joint with a spiral groove
  • Figure 10 is a perspective view of the handle rotary joint with stepped grooves.
  • the vacuum oil suction machine display cylinder of the present invention includes a viewing tube 1, a guide seat 2, a lock cylinder 9, a twist tube 6, a lock throat 8, a disc 7, a handle, and a cone.
  • Shape spring 10 pressure bar device, single-way device, and the like.
  • the top of the top of the observation cylinder 1 is provided with a guide seat 2, and a torsion tube 6 is connected under the guide seat 2 to connect the lock cylinder 9.
  • the pressure rod device is connected between the guide seat 2 and the twist tube 6, wherein the upper end of the pressure rod device
  • the connecting seat is fixedly connected with the guiding seat 2, the lower end pressing rod is connected with the torsion tube 6, and a single guiding device is connected between the pressing rod and the torsion tube 6.
  • the pressing rod device is a fork pressing rod device
  • the fork pressing rod device comprises a handle connecting seat 11, a pressing rod 12, an operating handle 18, an operating handle connecting seat 16, and a fork 14
  • the handle connecting seat 11 is slidably connected to the pressing rod 12, and the upper end of the pressing rod 12 is fixedly connected with the sliding pin shaft 15.
  • the two ends of the sliding pin shaft 15 are respectively inserted into the sliding grooves on both sides of the fork 14 and are slidably connected with the sliding slot.
  • One end of the opening of the fork 14 is rotatably connected to the rear side of the handle connecting seat 11 through the fork shaft 13 , and the other end of the fork 14 is fixedly connected to the operating handle connecting seat 16 , and the connecting handle pin 17 is movably connected in the operating handle connecting seat 16 , and is located at the positioning pin
  • a positioning spring 19 is sleeved on the positioning pin shaft 17 between the rear end surface of the boss 17 and the inner surface of the rear end of the operating handle connecting seat 16, and the operating handle connecting seat 16 is covered with an operating handle 18, the rear end of the operating handle 18 and the positioning pin shaft 17
  • the front end of the positioning pin shaft 17 passes through the fork 14 and the three positioning holes on the front side of the handle connecting seat 11 are respectively engaged and positioned.
  • the single-way device consists of a pressure bar 12, a torsion tube 6, and a 0-type sealing member 20.
  • the lower end of the pressing rod 12 has a through hole 26, and a groove on the outer circumference of the through hole 26 is provided with a sealing member. 6 is connected with a communication groove 27 in the upper end.
  • the press rod 12 is sealingly connected with the inner wall of the upper end of the torsion tube 6 through the 0-type seal 20 in the groove.
  • the type 0 in the groove of the press rod 12 The sealing member 20 is in the communication groove 27 of the torsion tube 6, and the pressing rod 12 is loosely coupled to the inner wall of the port on the torsion tube 6.
  • the operating handle 18 is pulled back to drive the positioning pin shaft 17, and then rotated upward to bring the positioning pin shaft 17 into the first positioning hole at the upper end of the handle connecting seat 11 (Fig. 2).
  • the sealing member 20 in the groove at the lower end of the pressing rod 12 is sealingly connected with the inner wall of the upper end of the torsion tube 6, that is, the inner cavity of the observation tube 1 is isolated from the atmosphere or the oil storage tank, and is used for observing the vacuum and oil absorption in the cylinder 1. .
  • the sealing member 20 in the groove of the pressing rod 12 is in the communicating groove 27 of the torsion tube 6, and the inner hole of the torsion tube 6 communicates with the inner cavity of the observation tube 1, that is, the inner cavity of the observation tube 1 is connected with the atmosphere or the sleeve tank. , used to observe the balance between the pressure in the chamber 1 and the atmospheric pressure or the pressure in the reservoir.
  • the lock cylinder 9 is closed upward by the action of the conical spring 10, and the sealing member 20 in the groove at the lower end of the pressing rod 12 is sealingly connected with the inner wall of the port on the torsion tube 6, and can be repeatedly used for observing the vacuum in the cylinder 1 and Oil absorption.
  • the pressing rod device is a rotating pressing rod device
  • the rotating pressing rod device comprises a rotating handle 22 , a handle rotating connecting seat 21 , a pressing rod 12 , a sliding pin 15 , and the handle rotating connecting seat 21 on the outer circumference
  • the spiral groove 30 (FIG. 9) or the step groove 32 (FIG. 10) is opened, and the starting end, the ending end and the middle of the spiral groove 31 are respectively provided with positioning grooves 31, and the handle rotating connecting seat 21 is slidably connected to the pressing rod 12, and the pressure is pressed.
  • the sliding pin 15 is fixedly connected to the middle of the rod 12, and the two ends of the sliding pin 15 respectively penetrate into the spiral groove 30 or the step groove 32 of the handle rotating joint 21, and are slidably connected with the spiral groove 30 or the step groove 32, and the upper end of the pressing rod 12
  • a return spring 28 is mounted between the handle and the handle rotation seat 21, and the top of the pressure bar 12 is fixedly coupled to the rotary handle 22.
  • the one-way valve is a one-way valve, and the one-way valve includes a wide body 23, a spring 25, a valve core 24, and a sealing member 29, and the valve core 24 is placed in the valve body 23, and the sealing member is passed between the wide core 24 and the valve body 23 29 sealing connection, a spring 25 is arranged between the rear end surface of the boss of the valve body 24 and the bottom surface of the valve body 23, and the gap between the valve body 24 of the valve body 24 is matched with the gap, and when the valve core 24 is closed, the head of the valve core 24 passes through the valve.
  • the top of body 23 is arranged between the rear end surface of the boss of the valve body 24 and the bottom surface of the valve body 23, and the gap between the valve body 24 of the valve body 24 is matched with the gap, and when the valve core 24 is closed, the head of the valve core 24 passes through the valve.
  • the inner cavity of the observation cylinder 1 is connected to the atmosphere or the oil storage tank.
  • the handle rotary joint 21 is a spiral groove 30, which rotates clockwise.
  • Rotating the handle 22, the sliding pin 15 on the pressing rod 12 moves along the spiral groove 30 on the handle rotating joint 21 to the intermediate positioning groove 31 of the spiral groove 30 (Fig. 7);
  • the handle rotation connecting seat 21 is a stepped groove 32, and the rotating handle 22 is pressed to rotate the sliding pin 15 on the pressing rod 12 along the handle to rotate the step groove 32 on the connecting seat 21 to the middle lateral positioning groove of the step groove.
  • rotating the rotating handle 22 clockwise to make the sliding pin 15 enter the lateral positioning groove.
  • the valve core 24 in the single-pass device is pressed into the valve body 23 by the pressing rod 12, and the single-way device is opened, the twist tube 6
  • the inner hole is in communication with the inner cavity of the observation cylinder 1.
  • the handle rotary joint 21 is a spiral groove 30, and the rotary handle 22 is rotated clockwise, and the sliding pin 15 on the pressure rod 12 is rotatably connected along the handle.
  • the spiral groove 30 on the seat 21 moves to the positioning groove 31 of the end of the spiral groove 30 (Fig. 8);
  • the handle rotary joint 21 is a stepped groove 32, and the rotary handle 22 is pressed to make the sliding pin 15 on the pressing rod 12
  • the step groove 32 on the connecting seat 21 is rotated along the handle to the lower end lateral positioning groove of the step groove 32.
  • the single-way conduction device continues to open, the inner hole of the torsion tube 6 communicates with the inner cavity of the observation tube 1, and the pressure rod 12 drives the twist tube 6 Open the lock cylinder 9 downward.
  • the inner cavity of the observation cylinder 1 is isolated from the atmosphere or the oil storage tank.
  • the rotary handle 22 is rotated counterclockwise, so that the sliding pin 15 on the pressure rod 12 is pressed by the return spring 28
  • the movement to the handle rotates the positioning groove 31 (Fig. 7) at the beginning of the spiral groove on the connector seat 21 or the tip end of the step groove 32.
  • the lock cylinder 9 is closed upward by the action of the conical spring 10.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

一种真空吸油机显示筒,包括观察筒(1)、导向座(2)、锁芯(9)、扭管(6)、观察筒(1)顶部中间装有导向座(2),导向座(2)下面设有连接锁芯(9)的扭管(6),导向座(2)与扭管(6)之间连接有压杆装置,其中,压杆装置上端的连接座与导向座(2)固定连接,下端的压杆(12)与扭管(6)连接,压杆(12)与扭管(6)之间连接有单向导通装置。解决了现有真空吸油机显示筒操作复杂,易误操作等技术问题,具有结构简单、可靠、操作方便等特点。

Description

真空吸油机显示筒
技术领域
本发明涉及一种用于汽车维修、 保养的真空吸油机, 尤其是一种采用文丘里抽真空的 具有储存真空和显示盛放所吸油的真空吸油机显示筒。
背景技术
现有的真空吸油机显示筒, 如图 1所示, 它主要包括观察筒 1、 圆盘 7、 导向座 2、 导 向座帽 3、 锁喉 8、 扭杆 5、 锁芯 9、 扭管 6、 把手 4、 锥形弹簧 10等。 观察筒 1安装在圆 盘 7上, 观察筒 1下面装有锁喉 8, 锁喉 8内装有锁芯 9, 锁芯 9与锁喉 8之间上、 下导 向连接, 锁芯 9侧面设有导向和锁定凸台, 锁芯 9与锁喉 8之间装有锥形弹簧 10, 并通过 密封件密封连接, 观察筒 1顶上中间装有导向座 2及导向座帽 3, 导向座 2内装入扭杆 5, 扭杆 5通过扭管 6连接锁芯 9, 扭杆 5与扭管 6之间螺紋可调连接, 扭杆 5上面固定连接 把手 4,扭杆 5中间开有通气孔 35,通气孔 35上端装有密封圈,通气孔 35与扭管 6连通, 扭管 6下端与大气相通, 观察筒 1顶面导向座 2旁装有文丘里真空发生器。 真空吸油机显 示筒通过锁喉 8整体安装在储油罐上。
现有的真空吸油机显示筒使用过程: 首先通过把手 4右旋转扭杆 5, 使扭杆 5与扭管 6之间密封, 即观察筒 1 内腔与大气隔绝; 用压缩空气通过文丘里真空发生器抽观察筒 1 内气体, 使观察筒 1内形成负压, 再用吸管将汽车发动机油吸入观察筒 1, 当观察筒 1内 吸入的油超过其容积的 2/3时, 停止吸油, 把手 4反向旋转, 使扭杆 5向上移动到其上的 通气孔 35与观察筒 1连通, 即观察筒 1中油面上的内腔通过扭管 6与大气连接, 压下扭 杆 5并左旋, 锁芯 9向下打开并通过导向和锁定凸台锁住在锁喉 8上, 使观察筒 1内的油 快速放入储油罐。 当观察筒 1内的油全部放入储油罐后, 先通过把手 4右旋扭杆 5, 使扭 杆 5中的通气孔 35进入扭管 6并封密, 然后压下扭杆 5并右转, 使锁芯 9上的导向和锁 定凸台与锁喉 8分离并进入到锁喉 8的导向槽内, 在锥形弹簧 10作用下, 锁芯 9向上移 动, 与锁喉 8内孔密封并关住, 使观察筒 1内腔与大气隔绝。
从上述的使用过程可知, 把手 4旋转方向、 锁芯 9上、 下移动, 左、 右旋转和扭杆 5 上的通气孔 35与观察筒 1连通操作都需要按规定的程序进行, 并且操作复杂, 一旦没按 操作程序操作或者误操作, 会产生抽真空失效和放油放不掉等情况, 直接影响到真空吸油 机显示筒的正常工作。
发明内容
本发明是要提供一种真空吸油机显示筒, 用于解决现有真空吸油机显示筒操作复杂, 易误操作等技术问题。
为实现上述目的, 本发明采用的技术方案是; 一种真空吸油机显示筒, 包括观察筒、 导向座、 锁芯、 扭管、 观察筒顶部中间装有导向座, 导向座下面设有连接锁芯的扭管, 其 特点是: 导向座与扭管之间连接有压杆装置, 其中, 压杆装置上端的连接座与导向座固定 连接, 下端的压杆与扭管连接, 压杆与扭管之间连接有单向导通装置。
压杆装置为拔叉压杆装置, 拔叉压杆装置包括手柄连接座、 压杆、 操作手柄、 操作手 柄连接座、拔叉、滑动销轴、拔叉轴、定位销轴、 定位弹簧、 手柄连接座内滑动连接压杆, 压杆上端中间固定连接滑动销轴, 滑动销轴两端分别穿入拔叉两侧的滑槽中, 并与滑槽滑 动连接, 拔叉开口处一端通过拔叉轴与手柄连接座后侧面可转动连接, 拔叉另一端固定连 接操作手柄连接座, 操作手柄连接座内活动连接定位销轴, 位于定位销轴凸台后端面与操 作手柄连接座后端内面之间的定位销轴上套有定位弹簧, 操作手柄连接座外套有操作手 柄, 操作手柄后端与定位销轴固定连接, 定位销轴前端穿过拔叉与手柄连接座前侧面上的 三个定位孔分别配合定位连接。
压杆装置为旋转压杆装置, 旋转压杆装置包括手柄旋转连接座、 压杆、 手柄、 滑动销 轴、 复位弹簧、 手柄旋转连接座外圆周上开有螺旋槽或台阶槽, 螺旋槽的起始端、 终止端 和中间分别设有定位凹槽,手柄旋转连接座内滑动连接压杆,压杆中间固定连接滑动销轴, 滑动销轴两端分别穿入手柄旋转连接座的螺旋槽或台阶槽中, 并与螺旋槽或台阶槽滑动连 接, 压杆上端与手柄旋转连接座之间装有复位弹簧, 压杆顶部与手柄固定连接。
单向导通装置为单向阀, 单向阀包括阀体、 弹簧、 阀芯、 密封件, 阀芯置于阔体内, 阀芯与阀体之间通过密封件密封连接, 阀芯凸台后端面与阀体底面之间装有弹簧, 阀体头 部阀体之间间隙配合连接, 与止通时, 阁芯头部穿出阀体顶部。
单向导通装置由压杆、 扭管, 0型密封件组成, 压杆下端开有通孔, 位于通孔上面的 外圆周上开有放置密封件的凹槽, 扭管上端内开有连通凹槽, 止通时, 压杆通过凹槽中的
0型密封件与扭管上端口内壁配合密封连接, 连接时, 压杆凹槽中的 0型密封件处于扭管 的连通凹槽中, 压杆与扭管上端口内壁间隙配合连接。
本发明的有益效果是:
由于在导向座与扭管之间安装压杆装置, 压杆装置上端的连接座与导向座固定连接, 下端的压杆与扭管连接, 压杆与扭管之间连接有单向导通装置。 使用时, 只要通过压杆装 置就可先实现扭杆上的通气孔与观察筒连通, 再打开锁芯放油, 避免了误操作, 放便操作 使用, 并且通过压杆装置中的定位装置和单向导通装置可实现扭杆上的通气孔与观察筒连 通单位连通, 使得真空吸油机显示筒与储油罐连通实现观察筒和储油罐一起通过文丘里真 空发生器抽真空,增加了吸油机的真空储气量,用于野外使用。当观察筒中的负压为零时, 只要通过压杆装置打开扭杆上的单向导通装置, 通过储油罐内的负压吸取汽车发动机中的 压杆装置采用旋转压杆机构或拔叉压杆机构, 压杆上的滑动销轴沿手柄旋转连接座上 的螺旋槽或台阶槽运动, 并经过螺旋槽的起始端、 终止端和中间定位凹槽或台阶槽中的横 向槽定位, 或者压杆通过拔叉上的定位销轴与手柄连接座前侧面上的三个定位孔定位连 接, 能够正确实现扭杆上的通气孔与观察筒连通, 锁芯打开放油和观察筒 >独与储油罐连 接。
附图说明
图 1是现有的真空吸油机显示筒剖视图;
图 2是本发明的实施例一结构局部剖视图;
图 3是本发明的实施例一中单向导通装置打开状态结构剖视图;
图 4是本发明的实施例一中单向导通装置和锁芯一起打开状态结构剖视图;
图 5是本发明的实施例一立体示意图;
图 6是本发明的实施例二结构局部剖视图;
图 7是本发明的实施例二中单向导通装置打开状态结构剖视图;
图 8是本发明的实施例二中单向导通装置和锁芯一起打开状态结构剖视图;
图 9是带有螺旋槽的手柄旋转连接座立体示意图;
图 10是带有台阶槽的手柄旋转连接座立体示意图。
具体实施方式
下面结合附图与实施例对本发明作进一步说明。
[0015] 如图 2至图 10所示, 本发明的真空吸油机显示筒, 包¾观察筒 1、 导向座 2、 锁芯 9、 扭管 6、 锁喉 8、 圆盘 7、 手柄、 锥形弹簧 10、 压杆装置、 单向导通装置等。
[0016] 观察筒 1顶部中间装有导向座 2, 导向座 2下面设有连接锁芯 9的扭管 6, 导 向座 2与扭管 6之间连接有压杆装置,其中,压杆装置上端的连接座与导向座 2固定连接, 下端的压杆与扭管 6连接, 压杆与扭管 6之间连接有单向导通装置。
[0017] 如图 2至图 5所示, 压杆装置为拔叉压杆装置, 拔叉压杆装置包括手柄连接 座 11、 压杆 12、 操作手柄 18、 操作手柄连接座 16、 拔叉 14、 滑动销轴 15、 拔叉轴 13、 定位销轴 17、 定位弹簧 19。 手柄连接座 11 内滑动连接压杆 12, 压杆 12上端中间固定连接滑动销轴 15, 滑动销 轴 15两端分别穿入拔叉 14两侧的滑槽中, 并与滑槽滑动连接, 拔叉 14开口处一端通过 拔叉轴 13与手柄连接座 11后侧面可转动连接, 拔叉 14另一端固定连接操作手柄连接座 16, 操作手柄连接座 16内活动连接定位销轴 17,位于定位销轴 17凸台后端面与操作手柄 连接座 16后端内面之间的定位销轴 17上套有定位弹簧 19, 操作手柄连接座 16外套有操 作手柄 18,操作手柄 18后端与定位销轴 17固定连接, 定位销轴 17前端穿过拔叉 14与手 柄连接座 11前侧面上的三个定位孔分别配合定位连接。
单向导通装置由压杆 12、 扭管 6, 0型密封件 20组成, 压杆 12下端开有通孔 26, 位 于通孔 26上面的外圆周上幵有放置密封件的凹槽, 扭管 6上端内开有连通凹槽 27, 止通 时, 压杆 12通过凹槽中的 0型密封件 20与扭管 6上端口内壁配合密封连接, 连通时, 压 杆 12凹槽中的 0型密封件 20处于扭管 6的连通凹槽 27中, 压杆 12与扭管 6上端口内壁 间隙配合连接。
使用时, 将操作手柄 18向后拉带动定位销轴 17, 再往上转动, 使定位销轴 17进入手 柄连接座 11上端的第一个定位孔 (图 2)。 此时, 压杆 12下端的凹槽中的密封件 20与扭 管 6上端口内壁配合密封连接, 即观察筒 1内腔与大气或储油罐隔离, 用于观察筒 1内抽 真空和吸油。
将操作手柄 18向后拉带动定位销轴 17, 再往下转动, 使定位销轴 17进入手柄连接座 11上端的第二个定位孔(图 3)。 此时, 压杆 12凹槽中的密封件 20处于扭管 6的连通凹 槽 27中, 扭管 6内孔与观察筒 1内腔连通, 即观察筒 1内腔与大气或储袖罐连通, 用于 观察筒 1内腔压力与大气压力平衡或储油罐内的压力平衡。
将操作手柄 18向后拉带动定位销轴 17, 再往下转动, 使定位销轴 27进入手柄连接座 11上端的第三个定位孔 (图 4)。 此时, 压杆 12凹槽中的密封件 20继续处于扭管 6的连 通凹槽 27中, 扭管 6内孔与观察筒 1内腔连通, 压杆 12带动扭管 6使锁芯 9向下打开, 观察筒 1 内腔中的油直接快速放入储油罐中。 放完后, 将操作手柄 18向后拉带动定位销 轴 17, 再往上转动, 使定位销轴 17进入手柄连接座 11上端的第一个定位孔 (图 2)。 此 时, 锁芯 9在锥形弹簧 10作用下向上关闭, 压杆 12下端的凹槽中的密封件 20与扭管 6 上端口内壁配合密封连接, 可重复用于观察筒 1内抽真空和吸油。
如图 6至图 8所示, 压杆装置为旋转压杆装置, 旋转压杆装置包括旋转手柄 22、手柄 旋转连接座 21、压杆 12、滑动销轴 15,手柄旋转连接座 21外圆周上开有螺旋槽 30 (图 9) 或台阶槽 32 (图 10), 螺旋槽 31的起始端、 终止端和中间分别设有定位凹槽 31, 手柄旋 转连接座 21内滑动连接压杆 12, 压杆 12中间固定连接滑动销轴 15, 滑动销轴 15两端分 别穿入手柄旋转连接座 21的螺旋槽 30或台阶槽 32中, 并与螺旋槽 30或台阶槽 32滑动 连接, 压杆 12上端与手柄旋转连接座 21之间装有复位弹簧 28, 压杆 12顶部与旋转手柄 22固定连接。
单向导通装置为单向阀, 单向阀包括阔体 23、 弹簧 25、 阀芯 24、 密封件 29, 阀芯 24 置于阀体 23内, 阔芯 24与阀体 23之间通过密封件 29密封连接, 阀芯 24凸台后端面与 阀体 23底面之间装有弹簧 25, 阀芯 24头部阀体 23之间间隙配合连接, 与止通时, 阀芯 24头部穿出阀体 23顶部。
使用时, 逆时针旋转旋转手柄 22, 使压杆 12上的滑动销轴 15处于手柄旋转连接座 21上的螺旋槽 30起始端 (图 6) 或台阶槽 32顶端。 此时, 锁芯 9在锥形弹簧 10作用下 向上关闭, 单向导通装置中的阔芯 24穿出阀体 23顶部, 单向导通装置关闭, 观察筒 1内 腔与大气或储油罐隔离, 用于观察筒 1内抽真空和吸油。
使观察筒 1内腔与大气或储油罐连通, 用于观察筒 1内腔压力与大气压力平衡或储油 罐内的压力平衡时, 手柄旋转连接座 21上为螺旋槽 30, 顺时针旋转旋转手柄 22, 压杆 12 上的滑动销轴 15沿手柄旋转连接座 21上的螺旋槽 30运动至螺旋槽 30的中间定位凹槽 31 (图 7); 手柄旋转连接座 21上为台阶槽 32, 按下旋转手柄 22使压杆 12上的滑动销轴 15 沿手柄旋转连接座 21上的台阶槽 32至台阶槽中间横向定位槽,并顺时针旋转旋转手柄 22 使滑动销轴 15进入横向定位槽, 此时, 单向导通装置中的阀芯 24在压杆 12作用下压入 阀体 23内, 单向导通装置打开, 扭管 6内孔与观察筒 1内腔连通。
使观察筒 1内腔中的油直接快速放入储油罐中时,手柄旋转连接座 21上为螺旋槽 30, 顺时针旋转旋转手柄 22,压杆 12上的滑动销轴 15沿手柄旋转连接座 21上的螺旋槽 30运 动至螺旋槽 30的终止端的定位凹槽 31 (图 8 ); 手柄旋转连接座 21上为台阶槽 32, 按下 旋转手柄 22使压杆 12上的滑动销轴 15沿手柄旋转连接座 21上的台阶槽 32至台阶槽 32 中下端横向定位槽, 此时, 单向导通装置继续打开, 扭管 6内孔与观察筒 1内腔连通, 压 杆 12带动扭管 6使锁芯 9向下打开。
使观察筒 1内腔与大气或储油罐隔离, 用于观察筒 1内抽真空和吸油时, 逆时针旋转 旋转手柄 22, 使压杆 12上的滑动销轴 15在复位弹簧 28作用下向上运动至手柄旋转连接 座 21上的螺旋槽起始端的定位凹槽 31 (图 7)或台阶槽 32顶端。 此时, 锁芯 9在锥形弹 簧 10作用下向上关闭。

Claims

权利要求:
1. 一种真空吸油机显示筒, 包括观察筒 (1 )、 导向座 (2)、 锁芯 (9)、 扭管 (6)、 观察 筒(1 ) 顶部中间装有导向座 2, 导向座 2下面设有连接锁芯 (9) 的扭管 (6), 其特征在 于: 所述导向座 (2) 与扭管 (6) 之间连接有压杆装置, 其中, 压杆装置上端的连接座与 导向座 (2) 固定连接, 下端的压杆与扭管 (6) 连接, 压杆与扭管 (6) 之间连接有单向 导通装置。
2. 根据权利要求 1 所述的真空吸油机显示筒, 其特征在于: 所述压杆装置为拔叉压杆装 置, 拔叉压杆装置包括手柄连接座 (11 )、 压杆 (12)、 操作手柄 (18)、 操作手柄连接座
( 16)、 拔叉 (14)、 滑动销轴 (15)、 拔叉轴 (13)、 定位销轴 (17)、 定位弹簧 (19); 手 柄连接座 (11 ) 内滑动连接压杆 (12), 压杆 (12)上端中间固定连接滑动销轴 (15), 滑 动销轴 (15)两端分别穿入拔叉 (14) 两侧的滑槽中, 并与滑槽滑动连接, 拔叉 (14) 开 口处一端通过拔叉轴(13) 与手柄连接座 (11 ) 后侧面可转动连接, 拔叉 (14) 另一端固 定连接操作手柄连接座 (16), 操作手柄连接座 (16) 内活动连接定位销轴 (17), 位于定 位销轴 (17) 凸台后端面与操作手柄连接座 (16)后端内面之伺的定位销轴 (17)上套有 定位弹簧 (19), 操作手柄连接座 (16) 外套有操作手柄 (18), 操作手柄 (18) 后端与定 位销轴 (17) 固定连接, 定位销轴 (17) 前端穿过拔叉 (14) 与手柄连接座 (11 )前侧面 上的三个定位孔分别配合定位连接。
3. 根据权利要求 1 所述的真空吸油机显示筒, 其特征在于: 所述压杆装置为旋转压杆装 置,旋转压杆装置包括旋转手柄(22)、手柄旋转连接座(21 )、压杆(12)、滑动销轴(15); 手柄旋转连接座 (21 ) 外圆周上开有螺旋槽 (30)或台阶槽(32), 螺旋槽 (31 ) 的起始 端、 终止端和中间分别设有定位凹槽(31 ), 手柄旋转连接座(21 ) 内滑动连接压杆(12), 压杆 (12 ) 中间固定连接滑动销轴 (15), 滑动销轴 (15 ) 两端分别穿入手柄旋转连接座
(21 ) 的螺旋槽 (30) 或台阶槽 (32) 中, 并与螺旋槽 (30) 或台阶槽 (32)滑动连接, 压杆 (12) 上端与手柄旋转连接座 (21 ) 之间装有复位弹簧 (28), 压杆 (12) 顶部与旋 转手柄 (22) 固定连接。
4. 根据权利要求 1所述的真空吸油机显示筒,其特征在于:所述单向导通装置由压杆(12)、 扭管(6)、 0型密封件(20)组成, 压杆(12)下端开有通孔 (26), 位于通孔(26)上面 的外圆周上开有放置密封件的凹槽, 扭管 (6) 上端内开有连通凹槽 (27), 止通时, 压杆
( 12)通过凹槽中的 0型密封件 (20) 与扭管 (6) 上端口内壁配合密封连接, 连通时, 压杆 (12) 凹槽中的 0型密封件 (20) 处于扭管 (6) 的连通凹槽 (27) 中, 压杆 (12) 与扭管 (6) 上端口内壁间隙配合连接。
5. 根据权利要求 1所述的真空吸油机显示筒, 其特征在于: 所述单向导通装置为单向阔, 单向阀包括阀体(23)、 弹簧(25)、 阀芯(24)、 密封件(29), 阀芯(24)置于阀体(23 ) 内, 阀芯 (24) 与阀体(23) 之间通过密封件 (29) 密封连接, 阀芯 (24) 凸台后端面与 阀体 (23 ) 底面之间装有弹簧 (25), 阀芯 (24) 头部阀体 (23 ) 之间间隙配合连接, 与 止通时, 阀芯 (24) 头部穿出阀体 (23) 顶部。
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