JP2009062847A - Engine-oil extractor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To extract engine oil without continuously operating a negative-pressure generator, and simply and easily extract engine oil by conveying a small-capacity tank close to a vehicle. <P>SOLUTION: An engine-oil extractor includes a suction pipe 1, a bottom-detection alarm 2, an extraction-measuring part 3, a negative-pressure generator 4, and a storage tank 5. The suction pipe 1 is inserted in an oil-level-gauge insertion hole to locate the tip at the bottom of an oil-pan so as to suck the engine oil. The bottom-detection alarm 2 detects that the tip of the suction-pipe has come to the bottom of the oil-pan and informs the fact. The extraction-measuring part 3 is graduated, and has a capacity of holding the engine-oil for at least one-vehicle. The inside of the extraction-measuring part 3 can be held at negative pressure, and is provided with a drain-valve on the bottom face to measure and extract the suction amount of the engine oil. The negative-pressure generator 4 brings the inside of the extraction-measuring part 3 in the state of negative pressure. The storage tank 5 has on its top a coupling port to be coupled to the drain valve of the extraction-measuring part 3. The coupling port is coupled or separated to/from the extraction-measuring part. The storage tank 5 receives and stores engine oil discharged from the extraction-measuring part in the amount for several vehicles. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a device for extracting old engine oil when replacing engine oil filled in a vehicle engine. More specifically, the present invention sucks engine oil even if a negative pressure generation source such as a suction pump is not continuously driven, The present invention relates to an engine oil extraction device that can easily and easily extract engine oil by transporting a tank of a capacity close to an individual vehicle.

  Conventionally, when replacing the engine oil of a vehicle (automobile), the old engine oil can be extracted by diving under the car or jacking up the car and removing the drain bolt on the oil pan below the engine. It was dripping and extracted.

On the other hand, in recent years, a suction pipe is inserted into the oil level gauge insertion hole of the engine, the distal end portion of the suction pipe is positioned on the bottom surface of the oil pan, and the proximal end side of the suction pipe has an appropriate capacity. An engine connected to the oil storage tank, further connected to a suction pump, and continuously driven to suck the engine oil in the oil pan and store and extract it in the oil storage tank An oil extraction device is provided. In this engine oil extraction device, a plate-shaped shape memory alloy is inserted at the tip of the suction pipe, and the tip of the suction pipe is deformed into an arc shape by the memory shape at a predetermined temperature. (See, for example, Patent Document 1).
Japanese Patent No. 3209694 (see FIGS. 1 and 2)

  However, in the engine oil extraction device described in Patent Document 1, the suction pump connected to the oil storage tank is driven to suck the engine oil in the oil pan. When extracting, it was necessary to connect a suction pump near the car or connect a power source to drive continuously, which was cumbersome to handle. In addition, the oil storage tank is mainly a large tank having a capacity for storing engine oil for a plurality of automobiles, and a large and heavy oil storage tank is used each time when extracting the engine oil of one automobile. It had to be transported to the vicinity of the car and the workability was poor. Furthermore, a plate-shaped shape memory alloy is inserted into the tip of the suction pipe so that the tip of the suction pipe is brought into contact with the bottom of the oil pan when the temperature reaches a predetermined temperature. The shape changed depending on the vehicle type, and it was difficult to attach the tip of the suction pipe to the bottom of the oil pan.

  Therefore, the present invention addresses such problems and easily and easily sucks engine oil without transporting a negative pressure source such as a suction pump, and transports a small-capacity tank near individual vehicles. Another object of the present invention is to provide an engine oil extraction device that can extract engine oil.

  In order to achieve the above object, an engine oil extraction device according to the present invention has a wire-shaped mandrel inserted through the entire length of an elongate tube so as to be slidable in the longitudinal direction, and the center of the tube from the tip of the tube. A suction pipe for projecting a predetermined amount of gold and inserting it into the oil level gauge insertion hole of the engine and positioning the tip at the bottom of the oil pan and sucking the engine oil in the oil pan, and this suction pipe The bottom detection is performed by detecting that the tip of the suction pipe has reached the bottom of the oil pan by sliding the tip of the mandrel in contact with the bottom of the oil pan. Connected to the notification section and the base end side of the suction pipe, it has a storage capacity of engine oil for at least one vehicle and has a measuring scale, and the inside is in a negative pressure state It has a drain valve that drains the engine oil stored inside, and is equipped with a drainage metering unit that measures and extracts the amount of engine oil sucked by the suction pipe, and the vicinity of this sampling metering unit A negative pressure generating unit for bringing the inside of the sampling metering unit into a negative pressure state by negative pressure generated by supplying pressurized air in a direction orthogonal to the passage communicating with the inside of the sampling metering unit, and the sampling metering unit A storage tank having a connection port connected to the drain valve on the lower surface, coupled to and separated from the sampling metering unit, and receiving engine oil discharged from the sampling metering unit to store the amount for a plurality of vehicles It is equipped with.

  With such a configuration, a suction pipe in which a wire-shaped mandrel is slidably inserted in the longitudinal direction over the entire length of the elongated tube and the mandrel protrudes from the tip of the tube by a predetermined amount, It is inserted into the oil level gauge insertion hole of the engine, the tip is positioned at the bottom of the oil pan, the engine oil in the oil pan is sucked, and the bottom detection notifying unit connected to the base end side of the suction pipe is used. The tip of the mandrel slides in contact with the bottom of the oil pan to detect that the tip of the suction pipe has reached the bottom of the oil pan, and notifies the base end of the suction pipe. It is connected and has a storage capacity for at least one vehicle's engine oil, and is equipped with a weighing scale. The inside can be held in a negative pressure state, and the engine oil stored in the lower surface is stored inside. The extraction metering unit comprising a drain valve for discharging the pump measures and extracts the amount of engine oil sucked by the suction pipe, and the negative metering unit provided in the vicinity of the sampling metering unit A negative pressure generated by supplying pressurized air in a direction perpendicular to the passage communicating with the inside of the part causes the inside of the sampling metering part to be in a negative pressure state, and a connection port connected to a drain valve on the bottom surface of the sampling metering part is provided on the top surface. The storage tank that can be coupled to and separated from the sampling and metering unit receives engine oil discharged from the sampling and metering unit and stores the amount of the vehicle for a plurality of vehicles.

  The tube of the suction pipe is made of a fluororesin. Accordingly, the heat resistance and chemical resistance of the suction pipe are improved by the fluororesin tube.

  The core of the suction pipe is made of a super elastic metal. Thereby, the resilience to the bending of the suction pipe is improved by the superelastic metal mandrel.

  Furthermore, the said bottom part detection alerting | reporting part alert | reports by the alarm sound by a buzzer. Thereby, it can recognize easily that the front-end | tip part of the suction pipe reached | attained the bottom part of the oil pan by the bottom part detection alerting | reporting part alert | reported by the alarm sound by a buzzer.

  Furthermore, the whole or part of the peripheral side surface of the sampling and weighing unit is made of a transparent material. Thereby, the color and dirt of the extracted engine oil can be easily confirmed by the sampling and weighing unit in which all or part of the peripheral side surface is made of a transparent material.

  In addition, an oil extraction pipe made of a transparent material is provided inside the extraction metering section and is connected to the suction pipe and extends upward near the ceiling. As a result, it is possible to easily confirm the state in which the engine oil is being extracted by the oil extraction pipe that is provided inside the extraction measuring unit and extends upward to the vicinity of the ceiling and is made of a transparent material.

  Furthermore, an inlet for injecting an oil cleaning agent into the sampling metering unit is provided at a portion corresponding to the position of the upper end of the oil sampling pipe on the top surface of the sampling metering unit. As a result, the oil cleaning agent can be extracted and injected into the inside of the measuring unit by the injection port provided at a position corresponding to the position of the upper end of the oil extracting pipe on the upper surface of the sampling unit.

  According to the first aspect of the present invention, by the negative pressure generated by supplying pressurized air in a direction orthogonal to the passage communicating with the inside of the sampling metering unit by the negative pressure generating unit provided in the vicinity of the sampling metering unit. The inside of the sampling and metering section is in a negative pressure state, inserted into the oil level gauge insertion hole of the engine, the tip is positioned at the bottom of the oil pan, and the base of the suction pipe that sucks engine oil in the oil pan The extraction metering unit, which is connected and can hold the inside in a negative pressure state, can measure and extract the amount of engine oil sucked with the suction pipe, so the negative pressure source such as a suction pump is continuously driven. Even if not, you can suck out the engine oil. Further, the sampling metering unit has a storage capacity of engine oil for at least one vehicle and is separable from a storage tank for storing a plurality of vehicles. The engine oil can be easily and easily removed by transporting the vehicle near individual vehicles. Further, a wire-shaped mandrel is inserted through the entire length of the elongated tube so as to be slidable in the longitudinal direction, and the mandrel protrudes from the distal end of the tube by a predetermined amount toward the proximal end of the suction pipe. The connected bottom detection notification unit detects and notifies that the tip of the suction pipe has reached the bottom of the oil pan by sliding the tip of the mandrel in contact with the bottom of the oil pan. it can. In addition, a storage tank having a connection port connected to the drain valve on the lower surface of the sampling metering unit, which is coupled to and separated from the sampling metering unit, receives engine oil discharged from the sampling metering unit. It is possible to store the quantity for multiple units.

  According to the second aspect of the invention, the heat resistance and chemical resistance of the suction pipe can be improved by the fluororesin tube. Therefore, even if the suction pipe is inserted into the high-temperature engine oil, it can be prevented from being melted or altered.

  Moreover, according to the invention which concerns on Claim 3, the restoring | restoration property with respect to the bending of a suction pipe can be improved with the mandrel made of a superelastic metal. As a result, even when the suction pipe is inserted into the oil level gauge insertion hole of the engine and its tip is positioned at the bottom of the oil pan, it can be bent almost straight by simply pulling it out of the oil level gauge insertion hole. Can be restored. Therefore, next time, it becomes easy to insert the suction pipe into the oil level gauge insertion hole of the engine.

  Furthermore, according to the invention which concerns on Claim 4, it can recognize easily that the front-end | tip part of the suction pipe reached the bottom part of the oil pan by the bottom part detection alerting | reporting part alert | reported by the alarm sound by a buzzer. Therefore, the suction of the engine oil can be started after confirming that the tip of the suction pipe has reached the bottom of the oil pan.

  Furthermore, according to the invention which concerns on Claim 5, the color and stain | pollution | contamination of the extracted engine oil can be easily confirmed by the sampling measurement part which all or one part of the surrounding side surfaces made of the transparent material.

  According to the invention of claim 6, it is possible to easily confirm the state in which the engine oil is being extracted by the oil extraction pipe that is provided inside the extraction measuring portion and extends upward to the vicinity of the ceiling portion and is made of a transparent material. Therefore, it is possible to easily find an error in the engine oil extraction work and improve the work efficiency.

  Furthermore, according to the invention which concerns on Claim 7, an oil cleaning agent is extracted and injected into the inside of a measurement part by the injection port provided in the site | part corresponding to the position of the upper end part of an oil extraction pipe on the upper surface of a extraction measurement part. And can be washed. Therefore, it is possible to improve the working efficiency by washing the engine oil adhering to the inner side surface of the sampling and measuring section so that the measuring scale, the internal oil extracting pipe and the like can be seen well.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a schematic view showing an embodiment of an engine oil extraction device according to the present invention. This engine oil extraction device extracts old engine oil when exchanging engine oil filled in the engine of a vehicle (automobile), and includes a suction pipe 1, a bottom detection notification unit 2, and a extraction metering unit 3. And a negative pressure generator 4 and a storage tank 5. In FIG. 1, reference numeral 6 denotes an air compressor for supplying pressurized air to the negative pressure generator 4.

  The suction pipe 1 is for sucking engine oil filled in an oil pan below the engine. As shown in FIG. 2, a wire-shaped mandrel 8 extends in the longitudinal direction over the entire length of the elongated tube 7. The tip 8a of the mandrel 8 protrudes from the tip of the tube 7 by a predetermined amount. The tube 7 is a member that sucks engine oil in the oil pan, and is formed in an elongated tubular shape with an appropriate inner diameter, and is made of, for example, a fluororesin. Thus, by making the tube 7 made of a fluororesin, heat resistance and chemical resistance can be improved, and even if it is inserted into engine oil at a high temperature (for example, about 160 ° C.), it melts or deteriorates. Can be prevented.

  The mandrel 8 serves as a core material of the tube 7, is formed in a wire shape having an outer diameter smaller than the inner diameter of the tube 7, and is slidably inserted in the longitudinal direction over the entire length of the tube 7. . The mandrel 8 may be any metal, but is preferably made of a superelastic metal. Thus, by making the mandrel 8 made of superelastic metal, it is possible to improve the resilience of the suction pipe 1 to bending when it is inserted into the oil level gauge insertion hole of the engine.

  Then, for example, as shown in FIG. 10, the suction pipe 1 configured as described above is inserted into the oil level gauge insertion hole of the engine 10 of the automobile 9, and the tip portion is positioned at the bottom of the oil pan. Inside engine oil is sucked.

  In FIG. 1, a connection fitting 11 is provided at the proximal end of the suction pipe 1. The connection fitting 11 is for connecting the suction pipe 1 and a sampling metering unit 3 to be described later, and as shown in FIG. 2, a suction chamber 13 having a sealed structure is formed by a casing material 12. The base end portion of the suction pipe 1 is connected to the lower surface of the suction chamber 13, and the base 15 for connecting the suction hose 14 connected to the sampling metering unit 3 is provided on the side surface. The base end 8 b of the mandrel 8 extends upward from the base end of the suction pipe 1 connected to the lower surface of the suction chamber 13 and is fixed to the mandrel fixing part 16. The mandrel fixing portion 16 is slidable up and down, and a flange 16a projects from the lower end thereof, and a coil spring 17 is interposed between the flange 16a and the ceiling portion of the casing material 12. It is always biased downward and slides downward by a predetermined distance. At this time, the upper end portion 16 b of the mandrel fixing portion 16 protrudes upward from the upper surface of the connection fitting 11.

  A bottom detection notification unit 2 is connected to the upper surface of the connection fitting 11 on the proximal end side of the suction pipe 1. The bottom detection notification unit 2 detects and notifies that the tip of the suction pipe 1 has reached the bottom of the oil pan. As shown in FIG. 2, the detection switch 18, the battery 19, and the buzzer 20 and. The detection switch 18 is fixed above the upper end portion 16b of the mandrel fixing portion 16, the distal end portion 8a of the mandrel 8 abuts against the bottom of the oil pan, and the mandrel 8 slides toward the base end portion 8b. By doing so, the upper end portion 16b of the mandrel fixing portion 16 is slid and pushed upward, and the ON operation is performed. The battery 19 supplies power to the buzzer 20 when the detection switch 18 is turned on, and is formed of, for example, a button type battery. The buzzer 20 is supplied with electric power from the battery 19 when the detection switch 18 is turned on and generates an alarm sound. The alarm sound of the buzzer 20 detects and notifies that the tip of the suction pipe 1 has reached the bottom of the oil pan.

  In FIG. 1, the sampling and weighing unit 3 is connected to the base end side of the suction pipe 1 through a connection fitting 11 and a suction hose 14. The sampling and metering unit 3 measures and extracts the amount of engine oil sucked by the suction pipe 1 and has a storage capacity for engine oil for at least one automobile, and has a metering scale. A drain valve that can be maintained in a state and discharges engine oil stored inside is provided on the lower surface.

  That is, as shown in FIG. 3, for example, a cylindrical measuring tank 21 having a storage capacity of 8 liters and having all or a part of the peripheral side surface made of a transparent material (for example, acrylic resin, glass, etc.) is provided. A weighing scale 22 is displayed on the surface of the tank 21. The measuring tank 21 has a structure in which the inside can be sealed, and the inside of the measuring tank 21 is brought into a negative pressure state by the operation of a negative pressure generating unit 4 described later, and the negative pressure state can be maintained. In addition, a discharge port (not shown) is formed on the lower surface of the measuring tank 21, and a drain valve 23 for discharging engine oil stored therein to a storage tank 5 described later is provided at the discharge port. . Further, a connecting coupler 24 for connecting to the storage tank 5 is attached to the lower part of the drain valve 23. In FIG. 3, reference numeral 23a indicates a handle for operating the drain valve 23.

  An oil extraction pipe 25 that is connected to the suction pipe 1 and extends upward to near the ceiling is provided inside the extraction metering unit 3. This oil extraction pipe 25 makes it possible to see the engine oil sucked by the suction pipe 1 shown in FIG. 1 flowing into the extraction metering section 3, and the lower end portion of the suction hose 14 shown in FIG. It is connected to a suction hose port 27 that is coupled to the base 26 and has an upper end that extends to the vicinity of the ceiling of the measuring tank 21 and is made of a transparent material such as acrylic resin or glass. Here, for example, a ball serving as a shut-off valve is built in the suction hose port 27 and normally shuts off the passage. However, when the cap 26 of the suction hose 14 is inserted and joined, the passage is opened. It is supposed to open. The detailed structure of the oil extraction pipe 25 will be described later.

  In FIG. 3, a negative pressure generator 4 is provided in the vicinity of the sampling metering unit 3. The negative pressure generating unit 4 is for bringing the inside of the sampling and metering unit 3 into a negative pressure state, and generates negative pressure by supplying pressurized air in a direction orthogonal to the passage communicating with the sampling and metering unit 3. It is like that.

  That is, as shown in FIG. 6, a negative pressure generator 28 having an air passage orthogonal to a T-shape, for example, is provided in the casing of the negative pressure generator 4, and the negative pressure generator 28 is provided at one end of the straight passage. An on-off valve 29, a pressure regulator 30, and a base 31 for supplying pressurized air are connected to each other, and an air discharge check valve 32 is connected to the other end of the straight passage. Further, a suction pipe 33 is connected to a passage perpendicular to the straight passage of the negative pressure generator 28, and is connected to an upper surface suction port (not shown) of the measuring tank 21 of the sampling metering unit 3 via a joint 34 with a safety valve. Has been. In FIG. 6, reference numeral 29a indicates a handle for operating the opening / closing valve 29. In this state, the connection port 36 of the air supply hose 35 connected to the air compressor 6 shown in FIG. 1 is connected to the base 31, pressurized air is supplied from the base 31 and discharged from the check valve 32. Thus, a negative pressure is generated in the suction pipe 33 in the direction orthogonal to the flow of the pressurized air by the principle of the venturi pipe. And the inside of the extraction measurement part 3 is made into a negative pressure state by this generated negative pressure.

  In FIG. 1, a storage tank 5 is disposed on the lower surface side of the sampling metering unit 3. The storage tank 5 receives the engine oil discharged from the sampling and metering unit 3 and stores the quantity for a plurality of automobiles. The connection port connected to the drain valve 23 on the bottom surface of the sampling and metering unit 3 is provided on the upper surface. Provided, and can be coupled to and separated from the sampling and metering unit 3.

  That is, as shown in FIG. 5, it has a capacity for storing engine oil for a plurality of automobiles and is made of, for example, a metal cylindrical container, and its upper surface is connected to a drain valve 23 on the lower surface of the sampling metering unit 3. A connection port 37 for connecting and disconnecting the connection meter 37 and the connection meter 24 provided at the lower part of the drain valve 23 (see FIG. 3). Has been. Further, a level gauge 38 made of, for example, a glass tube is attached to the outside surface of the storage tank 5 in the vertical direction so as to communicate with the inside of the storage tank 5 so that the amount of engine oil stored in the inside can be seen. It is like that. Further, an oil discharge port 39 is provided at the center of the bottom surface of the storage tank 5, and an oil discharge valve 40 is attached to the tip of a pipe connected to the discharge port 39.

  An air supply unit 41 is provided near the upper surface of the storage tank 5. The air supply unit 41 supplies air to the upper surface of the engine oil stored in the storage tank 5 to discharge the engine oil from the oil discharge valve 40.

  That is, as shown in FIG. 7, an air supply base 42 is provided on the outer surface of the air supply unit 41, and the casing of the air supply unit 41 is connected to the base 42 to connect the opening / closing valve 43 and the flow rate adjustment. The container 44 and the supply pipe 45 are connected to each other and connected to the upper surface supply port (not shown) of the storage tank 5 through a joint 46. In FIG. 7, reference numeral 43a denotes a handle for operating the opening / closing valve 43. In this state, for example, the connection port 36 of the air supply hose 35 connected to the air compressor 6 shown in FIG. 1 is connected to the base 42, and pressurized air is supplied from the base 42. The engine oil is discharged from the oil discharge valve 40 shown in FIG. 5 by pushing the upper surface of the engine oil stored in the storage tank 5.

  3 is connected to and separated from the upper surface of the storage tank 5 shown in FIG. 5. However, as shown in FIG. A skirt 47 that extends larger than the protruding length of the extended drain valve 23 and the connecting coupler 24 is attached. As shown in FIG. 1, the skirt 47 keeps a predetermined distance between the sampling metering unit 3 and the storage tank 5 and separates the sampling metering unit 3 from the storage tank 5. When the measuring unit 3 is placed on the ground, it becomes a base member, and is formed in a substantially cylindrical shape with a part of the side surface cut away. As shown in FIG. 4, the planar shape of the skirt 47 is a shape in which a part of a perfect circle is cut out to form an opening A, and the projecting parts B on both sides of the opening A C extends to an angle of about 45 degrees with respect to the remaining semicircle. The opening A is for allowing the operator to insert his / her hand when connecting the connection coupler 24 of the sampling and weighing unit 3 to the connection port 37 of the storage tank 5.

  In FIG. 3, reference numeral 48 indicates a handle for transporting the sampling and weighing unit 3 separated from the storage tank 5. In FIG. 5, reference numeral 49 denotes the suction pipe 1 connected to the sampling metering unit 3 via the suction hose 14 when the sampling metering unit 3 and the storage tank 5 are coupled as shown in FIG. 1. A cylindrical member that is inserted into a standby state is shown.

  As shown in FIG. 8, an air vent valve 50 is provided on the upper surface of the sampling metering unit 3. This air vent valve 50 is for returning the sampling metering unit 3 whose inside is in a negative pressure state to a normal pressure state. By opening the air vent valve 50, the air vent valve 50 communicates with the outside. 3 is provided above the oil extraction pipe 25 described in FIG. In FIG. 8, reference numeral 50a indicates a handle for operating the air vent valve 50. An inlet for injecting the oil cleaning agent into the sampling and metering unit 3 is provided at a position corresponding to the position of the upper end of the oil sampling pipe 25 on the top surface of the sampling and metering unit 3. Here, the air vent valve 50 is used as an inlet for the oil cleaning agent.

  The detailed structure of the oil extraction pipe 25 is as shown in FIG. That is, notches 52 are formed at a plurality of locations around the upper end portion of the upright pipe 51 made of a transparent material such as acrylic resin or glass, and the upper end of the upright pipe 51 is formed by hollowing out the lower surface side in a hemispherical shape. An umbrella member 53 is attached. In this state, the engine oil that has risen inside the upright pipe 51 is ejected from the notch 52 at the upper end and is dropped downward by hitting the inner peripheral surface of the umbrella member 53. Thereby, it can be seen that the engine oil sucked by the suction pipe 1 shown in FIG. 1 is extracted and flows into the measuring unit 3.

  A flat disk member 54 is attached to the upper surface of the umbrella member 53 at the upper end of the oil extraction pipe 25 by welding or the like. The disk member 54 is used for the oil cleaning agent injected into the sampling metering unit 3 using the air vent valve 50 shown in FIG. 8 to collide and diffuse in all directions.

  Here, in order to inject the oil cleaning agent into the inside of the metering unit 3, in FIG. 8, first, the handle 50a is operated to open the air vent valve 50 to return the inside of the sample metering unit 3 to the normal pressure state. Next, the tip of the spray pipe 56 of the spray can 55 containing the spray type cleaning agent is inserted into the air vent port of the air vent valve 50. Thereafter, by pushing the push button 57 of the spray can 55 in the direction of the arrow D, the cleaning agent is extracted and injected into the inside of the metering unit 3 through the injection pipe 56. The sprayed cleaning agent collides with the disk member 54 (see FIG. 9) located immediately below and is diffused in all directions as indicated by arrows E and F. The diffused cleaning agent comes into contact with the inner peripheral surface of the measuring tank 21 of the measuring unit 3 and the inside of the measuring tank 21 contaminated with engine oil can be cleaned with a small amount of cleaning agent.

  Next, the use and operation of the engine oil sampling apparatus configured as described above will be described with reference to FIG. First, in the standby state, as shown in FIG. 1, the drain valve 23 on the bottom surface of the sampling metering unit 3 is connected to the connection port 37 on the top surface of the storage tank 5, and the sampling metering unit 3 stores it via the skirt 47. It is on the tank 5. At this time, the drain valve 23 of the sampling and metering unit 3 is closed by operating the handle 23a. The suction hose port 27 provided at the lower end of the oil extraction pipe 25 in the extraction metering unit 3 is closed by a built-in shut-off valve. Further, the air vent valve 50 provided above the oil drain pipe 25 is also closed by operating the handle 50a.

  In this state, in FIG. 1, the connection port 36 of the air supply hose 35 connected to the air compressor 6 is connected to the base 31 (see FIG. 6) of the negative pressure generating unit 4. Then, the handle 29a shown in FIG. 6 is operated to open the open / close valve 29, and the air compressor 6 is driven to supply pressurized air from the base 31. Then, a negative pressure is generated in the passage perpendicular to the straight passage of the negative pressure generator 28 in the negative pressure generator 4 according to the Venturi pipe principle, and the suction tank 33 is connected to the inside of the measurement tank 21 of the sampling meter 3. The air is drawn out and the inside of the extraction measuring unit 3 is brought into a negative pressure state. When the inside of the sampling and metering unit 3 reaches a negative pressure state of a predetermined pressure, the handle 29a is operated to close the open / close valve 29 (see FIG. 6), and the air compressor 6 is stopped. Then, the air supply hose 35 is detached from the base 31 of the negative pressure generating unit 4. As a result, the inside of the sampling metering unit 3 is held in a negative pressure state and is in an initial state.

  In order to extract the engine oil from a certain automobile from this state, in FIG. 1, the hook member attached to the connection port 37 on the upper surface of the storage tank 5 is pushed down to connect the connection coupler 24 and the connection port 37 shown in FIG. Is removed, and the weighing unit 3 is separated from the storage tank 5. Then, the operator grasps the handle 48 of the sampling metering unit 3 and carries only the sampling metering unit 3 to the vicinity of the automobile 9 and installs it on the ground via the skirt 47 as shown in FIG. Then, the suction hose 14 is connected to the suction hose port 27 (see FIG. 1) of the sampling metering unit 3, and the proximal end side of the suction pipe 1 is connected to the suction hose 14. At this time, the opening / closing valve 58 is closed in advance by operating the handle 58a at the tip of the suction hose 14 shown in FIG.

  Next, in FIG. 10, the hood 59 of the automobile 9 is opened, and the suction pipe 1 is inserted into the oil level gauge insertion hole of the engine 10. An insertion state of the suction pipe 1 is shown in FIG. In FIG. 11A, the oil level gauge insertion hole 60 is close to a vertical state, and the tip of the suction pipe 1 inserted into the oil level gauge insertion hole 60 reaches the bottom of the oil pan 61. Stop. At this time, as shown in FIG. 2, it is detected that the tip 8 a of the mandrel 8 protruding from the tip of the suction pipe 1 is pushed and the tip of the suction pipe 1 reaches the bottom of the oil pan 61. To do. And it alert | reports by the alarm sound of the buzzer 20. FIG.

  FIG. 11 (b) shows that the oil level gauge insertion hole 60 is inclined, and the tip of the suction pipe 1 inserted into the oil level gauge insertion hole 60 is connected to the oil pan 61. It slips at the bottom, moves laterally along the bottom, reaches the bottom corner of the oil pan 61 and stops. At this time, it is detected that the tip 8 a of the mandrel 8 shown in FIG. 2 is pushed and the tip of the suction pipe 1 reaches the bottom of the oil pan 61.

  Further, FIG. 11C shows that the oil level gauge insertion hole 60 is further inclined, and the tip of the suction pipe 1 inserted into the oil level gauge insertion hole 60 has an oil pan 61. Slip at the bottom of the oil pan, move laterally along the bottom, reach the bottom corner of the oil pan 61 and stop. At this time, depending on the length of the suction pipe 1 and the like, the suction pipe 1 may be curved in a wavy shape as shown in FIG. Then, it is detected that the tip 8 a of the mandrel 8 shown in FIG. 2 is pushed and the tip of the suction pipe 1 reaches the bottom of the oil pan 61.

  Thus, when it is detected that the tip of the suction pipe 1 has reached the bottom of the oil pan 61, the opening / closing valve 58 (see FIG. 1) is operated by operating the handle 58a at the tip of the suction hose 14 shown in FIG. open. Then, the engine oil in the oil pan 61 is sucked by the suction pipe 1 by the negative pressure of the sampling metering unit 3 in which the inside is maintained in a negative pressure state. The sucked engine oil reaches the oil extraction pipe 25 shown in FIG. 3 through the suction hose 14 and is stored in the measuring tank 21 from the upper end of the oil extracting pipe 25, and the amount sucked by the measuring scale 22 is measured. And extracted.

  When a predetermined amount of engine oil is extracted from the automobile 9, the handle 58a at the tip of the suction hose 14 is operated to close the open / close valve 58 (see FIG. 1), and the suction pipe 1 is removed from the oil level gauge insertion hole 60. Pull out and finish extracting the engine oil. Then, the suction pipe 1 is extracted and detached from the suction hose port 27 of the measuring unit 3.

  Thereafter, the operator holds the handle 48 of the sampling and weighing unit 3 and carries the sampling and weighing unit 3 to the storage tank 5 shown in FIG. Then, the sampling metering unit 3 is placed on the storage tank 5 and a connection coupler 24 provided at the lower part of the drain valve 23 of the sampling metering unit 3 is connected to the connection port 37 on the upper surface of the storage tank 5. As shown in FIG. 1, the sampling and weighing unit 3 is coupled to the storage tank 5. In this state, the handle 23 a is operated to open the drain valve 23, and the engine oil extracted into the extraction metering unit 3 is discharged into the storage tank 5. In this state, the original standby state is restored.

  Thereafter, such use is repeated, and when the storage tank 5 is filled by extracting and storing engine oil for a plurality of automobiles, air is supplied from the base 42 on the outer surface of the air supply unit 41 shown in FIG. The engine oil accumulated inside may be discharged from the oil discharge valve 40.

  Further, during such use, if the inside of the measuring tank 21 of the sampling and metering unit 3 is contaminated with engine oil, for example, the spray type cleaning agent is sampled by using the air vent valve 50 shown in FIG. And the inside of the measuring tank 21 that is soiled with engine oil may be washed with a cleaning agent.

  FIG. 12 is an explanatory view showing another example of the usage state of the engine oil extraction device according to the present invention. In this use example, the inside of the sampling metering unit 3 is not held in a negative pressure state at a predetermined pressure in advance, but the suction pipe 1 connected to the sampling metering unit 3 via the suction hose 14 is connected to the oil of the engine 10. Inserted in the level gauge insertion hole, and connected to the negative pressure generating part 4 of the sampling and metering part 3 via the air supply hose 35, the air compressor 6 is driven and the negative pressure is generated while the air compressor 6 is driven. A negative pressure is generated in the portion 4. As a result, the engine oil can be sucked by the suction pipe 1 by the negative pressure in the sampling and metering section 3, and the amount of the suction can be measured to drain the engine oil.

  In the above description, a state has been described in which one sampling and weighing unit 3 is combined with one storage tank 5 and combined and separated. However, the present invention is not limited to this, and one storage tank 5 is stored. A plurality of sampling and weighing units 3 may be combined with the tank 5, and the sampling and weighing units 3 may be combined and separated one by one. Accordingly, a plurality of sampling and weighing units 3 can be used in parallel for one storage tank 5, and an engine oil sampling operation can be performed in parallel for a plurality of automobiles 9. Therefore, the efficiency of the engine oil extraction work can be improved.

It is a schematic diagram showing an embodiment of an engine oil sampling apparatus according to the present invention, and shows a state where a sampling metering unit and a storage tank are combined. It is an expanded sectional view showing a suction pipe. It is a partial cross section front view which shows the extraction measurement part of the isolate | separated state. It is an enlarged plan view which shows the skirt of the said sampling measurement part. It is a front view which shows the storage tank of the isolate | separated state. It is an expanded sectional view of the negative pressure generating part provided in the vicinity of the sampling metering part. It is an expanded sectional view of the air supply part provided in the upper surface part vicinity of the said storage tank. It is explanatory drawing which shows the air vent valve provided in the upper surface of the said sampling measurement part, and the injection port of an oil cleaning agent. It is the enlarged front view which carried out the partial cross section which shows the structure of the detail of the oil extraction pipe provided in the inside of the said extraction measurement part. It is explanatory drawing which shows the use condition of the engine oil extraction apparatus by this invention. It is explanatory drawing which shows the state which inserts a suction pipe in the oil level gauge insertion hole of an engine. It is explanatory drawing which shows the other example of the use condition of the engine oil extraction apparatus by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Suction pipe 2 ... Bottom detection alerting | reporting part 3 ... Extraction measurement part 4 ... Negative pressure generation | occurrence | production part 5 ... Storage tank 6 ... Air compressor 7 ... Tube 8 ... Mandrel 8a ... Tip part of mandrel 9 ... Automobile 10 ... Engine 11 ... Connector 14 ... Suction hose 15 ... Base 18 ... Detection switch 19 ... Battery 20 ... Buzzer 21 ... Measurement tank 22 ... Measurement scale 23 ... Drain valve 24 ... Connector coupler 25 ... Oil extraction pipe 27 ... Suction hose port 28 ... Negative Pressure generator 31 ... Base 33 ... Suction pipe 35 ... Air supply hose 37 ... Connection port 41 ... Air supply part 42 ... Base 47 ... Skirt 48 ... Handle 50 ... Air vent valve (oil cleaner inlet)
51 ... Upright pipe 53 ... Umbrella member 54 ... Disc member 60 ... Oil level gauge insertion hole 61 ... Oil pan

Claims (7)

A wire-shaped mandrel is slidably inserted in the longitudinal direction over the entire length of the elongated tube, and the mandrel protrudes by a predetermined amount from the tip of the tube, and is inserted into the oil level gauge insertion hole of the engine. A suction pipe for inserting and sucking engine oil in the oil pan by positioning the tip at the bottom of the oil pan;
Connected to the base end of the suction pipe, the tip of the mandrel slides against the bottom of the oil pan to detect and notify that the tip of the suction pipe has reached the bottom of the oil pan. A bottom detection notifying unit,
Connected to the base end side of the suction pipe, it has a storage capacity of engine oil for at least one vehicle and is equipped with a weighing scale, so that the inside can be held in a negative pressure state, and is stored in the lower surface. A drain valve for discharging engine oil, and a sampling metering unit for measuring and extracting the amount of engine oil sucked by the suction pipe;
A negative pressure generating unit provided in the vicinity of the sampling and metering unit and configured to create a negative pressure in the sampling and metering unit by negative pressure generated by supplying pressurized air in a direction orthogonal to a passage communicating with the sampling and metering unit ,
A connection port connected to the drain valve on the lower surface of the sampling and metering unit is provided on the top surface, and can be coupled to and separated from the sampling and metering unit. A storage tank for storing,
An engine oil extraction device characterized by comprising:   2. The engine oil extractor according to claim 1, wherein the tube of the suction pipe is made of a fluororesin.   3. The engine oil extraction device according to claim 1, wherein the core of the suction pipe is made of a super elastic metal.   The said bottom part detection alerting | reporting part alert | reports by the alarm sound by a buzzer, The engine oil extraction apparatus of any one of Claims 1-3 characterized by the above-mentioned.   5. The engine oil extraction device according to claim 1, wherein a peripheral side surface of the sampling and metering unit is made entirely or partially of a transparent material.   The oil extraction pipe made of a transparent material connected to the suction pipe and extending upward near the ceiling portion is provided inside the sampling and metering section. Engine oil extraction device.   2. An inlet for injecting an oil cleaning agent into the sampling and metering unit is provided at a position corresponding to the position of the upper end of the oil sampling pipe on the top surface of the sampling and metering unit. The engine oil extraction device according to any one of -6.

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