JP4577725B2 - Oil supply device - Google Patents

Description

  The present invention relates to an oil supply device used when exchanging engine oil of an automobile, for example, in a gas station, a car goods store, or the like.

  A conventional oil supply device used for engine oil replacement as described above, for example, as described in Patent Document 1, sucks up oil in an oil supply tank (new oil tank) by a pump, Generally, an oil supply hose connected to the engine is used.

JP-A-6-345195

  In the case where there is only one oil supply tank as in the oil supply device described in Patent Document 1, when the remaining amount of oil in the oil supply tank is reduced, a drum can containing new oil Must be transported to the vicinity of the device, pumped up by a pump, and replenished to the oil supply tank each time, which is cumbersome. In particular, engine oil has a relatively high viscosity, so it takes time to replenish.

  The present invention has been made to solve the above-described problems, and the oil supply tank is automatically replenished with an amount of oil necessary for supply from the reserve tank. An object of the present invention is to provide an oil supply apparatus capable of improving efficiency.

In order to achieve the above object, an oil supply apparatus according to claim 1 of the present invention includes an oil supply tank that supplies oil to an oil supply object, a reserve tank that stores oil, and an oil supply tank. The first oil remaining amount detecting means for detecting that the amount of oil has reached a predetermined remaining amount, and the operation of the first oil remaining amount detecting means supplies a predetermined amount of oil in the reserve tank to the oil supply tank. And a second oil remaining amount detecting means for detecting the remaining amount of oil in the reserve tank, and the mounting table on which the reserve tank is mounted is moved to a base that supports the oil supply tank The reserve tank mounted on the mounting table is movable toward a replenishment position substantially below the oil supply tank, and the reserve tank is circular and upward. Shall have a thread bottom to enter, the thread bottom, is characterized in that as can fit from above into a disc-shaped mounting plate projecting from the top surface of the mounting table.
According to this feature, when the first oil remaining amount detecting means detects that the oil in the oil supply tank has reached a predetermined remaining amount, the oil in the reserve tank is received by the oil replenishing means by a predetermined amount, Since the oil supply tank is replenished, the labor of replenishment work can be saved and work efficiency can be improved.
In addition, since there is a second oil remaining amount detecting means for detecting the remaining amount of oil in the reserve tank, before the oil in the oil supply tank runs out, new oil is added to the reserve tank in advance, It can be replaced with a reserved reserve tank. By moving the mounting table, the oil supply tank can be easily replenished or the reserve tank can be replaced without obstruction. Furthermore, it is possible to prevent the reserve tank mounted on the mounting table from sliding in the horizontal direction and move it stably.

An oil supply device according to claim 2 of the present invention is the oil supply device according to claim 1,
When the second oil remaining amount detecting means detects that the oil in the reserve tank is emptied, it is characterized in that a notifying means for notifying that the oil has been emptied is provided.
According to this feature, when the oil in the reserve tank is emptied, the notification means notifies the operator that the oil in the reserve tank has been emptied even from a distance. Oil can be replenished to the tank or the reserve tank can be replaced quickly.

The oil supply device according to claim 3 of the present invention is the oil supply device according to claim 1 or 2 ,
It is characterized by comprising movement assisting means for assisting the movement of the mounting table toward the oil supply tank.
According to this feature, the movement of the mounting table on which the heavy reserve tank is placed to the oil supply tank side is assisted by the movement assisting means, so that the replacement work of the reserve tank can be performed efficiently and the operator's Labor is reduced.
Note that the movement assisting means is not limited to a mechanism that automatically moves the mounting table toward the oil supply tank, but can move the mounting table toward the oil supply tank. It may be a biasing means that biases.

An oil supply device according to claim 4 of the present invention is the oil supply device according to any one of claims 1 to 3 ,
The mounting plate is provided with a plurality of rotation support means for rotatably supporting the yarn bottom surface of the reserve tank.
According to this feature, the heavy reserve tank can be rotated on the mounting table, so that it is easy to align the supply / discharge oil port provided in the reserve tank and the oil supply means.

An oil supply device according to claim 5 of the present invention is the oil supply device according to any one of claims 1 to 4 ,
The oil replenishing means has a suction pipe that can be inserted into and removed from the supply / discharge oil port provided on the upper surface of the reserve tank, and that can be moved up and down by the lifting means. It is characterized by that.
According to this feature, the suction pipe of the oil replenishing means can be moved up and down by the elevating means and automatically inserted into and removed from the supply / discharge oil port of the reserve tank, so that the work efficiency is improved and the labor of the operator is improved. Is reduced.

An oil supply device according to claim 6 of the present invention is the oil supply device according to claim 5 ,
Positioning means for positioning the reserve tank is provided so that the oil supply / discharge oil port and the suction pipe are aligned vertically.
According to this feature, the supply / discharge oil port of the reserve tank and the suction pipe are accurately positioned by the positioning means. Therefore, when the suction pipe is lowered by the lifting / lowering means, the supply / discharge oil port of the reserve tank It can be inserted more smoothly.

An oil supply device according to claim 7 of the present invention is the oil supply device according to claim 6 ,
Cylindrical positioning with positioning means attached to the horizontal arm at the upper end of the column that is erected on the mounting table so that it can be moved up and down, and the lower end is fitted around the ventilation port on the top of the reserve tank It is characterized by being a member.
According to this feature, the cylindrical positioning member only needs to be externally fitted to the ventilation port on the upper surface of the reserve tank, and there is no need for any positioning processing or the like on the reserve tank side. Therefore, the positioning operation is easy and the positioning means is inexpensive.

An oil supply apparatus according to claim 8 of the present invention is the oil supply apparatus according to any one of claims 5 to 7 ,
When the suction pipe is inserted into the reserve tank to the lower limit position, a closing member is installed on the outer peripheral surface of the suction pipe to close the supply / discharge oil port of the reserve tank from above.
According to this feature, the gap formed between the suction pipe and the oil supply / discharge port is closed by the closing member, so that there is no possibility that dust, rainwater, etc. enter the reserve tank when oil is supplied. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is a front view of the oil supply apparatus of the present invention, FIG. 2 is a right side view, FIG. 3 is a left side view, FIG. 4 is a plan view, and FIG. 5 is a view when the oil supply means is lowered. 6 is an enlarged longitudinal sectional front view taken along the line VI-VI in FIG. 4, FIG. 7 is an enlarged sectional view of the main part in a state where the drum can is positioned by the positioning member, and FIG. 8 is a suction to the support rod. It is an enlarged front view of a pipe attachment part.

  The base 1 of the oil supply device is formed into a frame shape in a plan view in which the rear side is slightly widened to the right by combining the plurality of horizontal frames 3 between the opposing surfaces of the left and right side frames 2, and the rear side The upper surface except the front surface has an inclined plate 4a that projects forwardly from the front end of the base 1 at the front end, and a concave portion that is substantially U-shaped in plan view with the front half forming a semicircular shape at the center. The upper surface plate 4 on which 4b is formed is fixed.

  As shown in FIGS. 4 and 6, a pair of left and right guide rails are formed with guide grooves 5 a that are recessed outward in the opposing surfaces at the central portion except for the front and rear ends of the base 1. 5 and 5 are fixed to the upper surfaces of the front and rear horizontal frames 3.

  Reference numeral 6 denotes a mounting table on which a drum can 7 serving as a reserve tank for new oil is placed. A circular mounting plate 9 having a thickness slightly thicker than the recessed depth thereof, into which the yarn bottom surface 7a of the drum can 7 can be loosely fitted, is concentrically fixed by a plurality of bolts 10.

  A pair of left and right slide rails 11, 11 facing in the front-rear direction are fixed to the lower surface of the substrate 8, and both the slide rails 11 are inserted into the guide grooves 5 a of the left and right guide rails 5, Are fitted so as to be slidable in the front-rear direction.

  Below the center part of the mounting table 6, as shown in FIG. 2, this is reciprocated in the front-rear direction. A reciprocating means, for example, a fluid pressure cylinder 12 such as air pressure or hydraulic pressure, fixes the front end of the cylinder case 12 a to the front horizontal frame 3 with a bracket 13, and the rear end of the piston rod 12 b to the rear of the substrate 8. It is fixed to the lower surface of the end by a bracket 14. Thereby, the mounting table 6 is indicated by a two-dot chain line from the front limit position close to the front end of the recessed portion 4b of the upper surface plate 4 as shown by the solid line in FIG. 4 corresponding to the stroke of the piston rod 12b. Furthermore, it can move back and forth between the vicinity of the rear end of the base 1. That is, the fluid pressure cylinder 12 that moves the mounting table 6 to the oil supply tank 30 side completely automatically constitutes the movement assisting means of the present invention that assists the movement of the mounting table 6 to the oil supply tank 30 side. .

  As shown in FIGS. 4 and 6, the thread of the drum can 7 is placed in the four fitting holes 15 formed in the outer peripheral portion of the mounting plate 9 in the mounting table 6 at intervals of 90 ° in the circumferential direction. A rotation support means having a steel ball 16a that rotatably supports the bottom surface 7a, that is, a bearing unit 16, is press-fitted.

  As shown in FIGS. 1 and 3, the lower end of the positioning column 17 is fixed to the upper surface of the center of the rear end portion of the substrate 8, and the support arm 18 facing the front fixed to the upper end is enlarged in FIG. 7. A positioning member 19 of the drum can 7 is attached. The positioning member 19 includes a cylindrical shaft 20 that is fitted to the support arm 18 so as to be movable up and down, a locking pin 21 that extends through the upper end portion of the cylindrical shaft 20 in a direction orthogonal thereto, and the cylindrical shaft 20. A fitting cylinder 23 that is fitted into the lower end from below and is detachably connected by a pin 22 and that can be fitted to the ventilation port 7b of the drum 7 and a handle 24 that is fixed to the upper end of the cylindrical shaft 20. ing.

  In order to position the drum 7 placed on the mounting table 6 by the positioning member 19, first, as shown by a two-dot chain line in FIG. 7, the entire positioning member 19 is pulled up with the handle 24, and the drum 7 is loaded. The ventilation port 7 b is positioned below the positioning member 19 by being rotated by the bearing unit 16 of the mounting plate 9.

  Next, after the positioning member 19 is rotated to a position facing the locking groove 25 that is formed in the support arm 18 with the locking pin 21 opening in the left and right direction and facing the left and right direction, as shown by a solid line. The fitting pin 23 is fitted into the locking groove 25 at the same time as the fitting cylinder 23 is fitted onto the ventilation port 7b. As a result, the drum 7 is prevented from rotating on the mounting table 6 and positioned in the front-rear and left-right directions. At the same time, the front / rear direction positioning of the oil supply / discharge oil port 7c provided in front of the ventilation port 7b is also performed.

  After positioning the drum can 7 in this way, the positioning member 19 is removed from the support arm 18, and instead, the remaining oil amount detection for detecting the remaining amount of oil in the drum can 7 as shown in FIG. A means 26 is attached. The oil remaining amount detecting means 26 includes an air pipe 26a having a length that reaches the vicinity of the inner bottom surface in the drum 7 and a fixing bracket 26b that fixes the air pipe 26a by screwing into an internal thread hole of the ventilation port 7b. It is a known bubble type (for example, manufactured by Fuji Control Co., Ltd.) provided with a pressure sensor for detecting the pressure in the air pipe 26a and a notification means (not shown) for issuing (notifying) an alarm.

  The air inlet port 27 at the upper end of the air pipe 26a inserted and held in the support arm 18 is connected to the outlet end of the air supply pipe 28 piped to the upper end of the positioning column 17 (two-dot chain line in FIG. 3). reference).

  The remaining amount of oil is such that when a certain amount of air is fed into the air pipe 26a inserted to the vicinity of the inner bottom surface of the drum 7 and the air is discharged as bubbles from the lower end of the air pipe 26a, The air pressure is detected based on the principle that it changes depending on the remaining amount of oil. Accordingly, when the oil in the drum can 7 becomes empty, the air pressure suddenly decreases, so that it can be quickly detected and an alarm can be issued.

  On the upper surface of the rear end portion of the base 1, four L-shaped support pillars 29 arranged in a plan view are arranged in the front-rear direction and the left-right direction. When the drum 7 is moved to the rear limit of the base 1, the lower end portion of the oil supply tank 30 having a shape is fixed so as to be positioned above the drum 1. The volume of the oil supply tank 30 is larger than the volume (200 liters) of the drum can 7.

  An oil supply means 31 for supplying replacement oil to an oil supply object, for example, an automobile engine, is attached to an oil supply port 31 provided on the upper left side of the oil supply tank 30. As shown in FIG. 1, the oil supply means 32 includes a suction pipe 33, a pump 34, and an oil supply hose 35 inserted so as to be close to the inner bottom surface of the oil supply tank 30.

  As shown in FIGS. 1 to 4, the upper and lower two brackets 36 fixed to the right front support column 29 are attached with a support member 37 facing in the vertical direction. For example, a fluid pressure cylinder 38 operated by air pressure or hydraulic pressure is fixed with the piston rod 38a facing upward. At the upper end of the piston rod 38a, a right end portion of a support rod 39 having a length that is horizontal in the left-right direction and whose left end portion is located slightly to the left of the center in the left-right direction of the mounting table 6 is fixed. ing.

  The lower end of the guide rod 40 that faces in the vertical direction is fixed to the right side of the fluid pressure cylinder 38 in the upper bracket 36. The upper end portion of the guide rod 40 is fitted to the right end portion of the support rod 39 so as to be slidable up and down, and is guided by the guide rod 40 when the piston rod 38a expands and contracts and the support rod 39 moves up and down. It can be moved up and down stably.

  41 is an oil replenishing means for replenishing oil in the drum can 7 to the oil supply tank 30 and includes an air-driven pump 42, a suction pipe 43, and a connection hose 44 for connecting them. The pump 42 is attached to a bracket 45 fixed to the upper end portion of the right front support column 29 so as to face in the vertical direction.

  The upper end of the suction pipe 43 is attached to the left end of the support rod 39 as follows. As shown in an enlarged view in FIG. 8, the suction pipe 43 is inserted into a support hole 46 provided in the support rod 39 so as to be slidable in the vertical direction, and an enlarged diameter stopper 47 at the upper end contacts the upper surface of the support rod 39. Is supported in a suspended state.

  A compression coil spring 49 is contracted between the lower surface of the support rod 39 and a spring receiver 48 attached to the suction pipe 43 below the support rod 39. The suction pipe 43 bends the compression coil spring 49 slightly upward. It is supported so that it can move. The suction pipe 43 is supported so as to be positioned above the center of the oil supply / discharge port 7c when the drum 7 positioned as described above is moved to the rear limit of the base 1.

  A closing member 50 having an umbrella-like cross section made of rubber or elastomer is attached to the upper side of the suction pipe 43. The closing member 50 places the suction pipe 43 in a lower limit position in the drum 7 as shown in FIG. Is inserted in contact with and covers the upper end of the oil supply / exhaust port 7c so that dust, rainwater and the like can be prevented from entering the drum. At the time of the contact, the suction pipe 43 compresses the compression coil spring 49 and moves slightly upward to prevent the bending load from acting on the support rod 39.

  The other end of the supply hose 51 whose one end is connected to the discharge port of the pump 42 is connected to the supply port 52 on the upper surface of the oil supply tank 30. Reference numeral 53 denotes a downward J-shaped ventilation pipe attached to the upper surface of the oil supply tank 30.

  As shown in FIG. 1, an oil remaining amount detecting means 55 for detecting the remaining amount of oil in the oil supply tank 30 is attached to the attachment port portion 54 provided at the left end portion of the upper surface of the oil supply tank 30. Yes. This oil remaining amount detecting means 55 is also a bubble type having an air pipe 55a like the oil remaining amount detecting means 26 of the drum 7 and the oil in the oil supply tank 30 is emptied on the same principle. Can be detected by a pressure sensor (not shown).

  When this oil remaining amount detecting means 55 detects that the oil in the oil supply tank 30 has become empty, it is controlled by a control device (not shown) so that the pump 42 of the oil replenishing means 41 operates for a predetermined time. It has become.

  Next, the operation of the oil supply device of the above embodiment will be described.

  First, in order to supply new oil from the drum can 7 to the empty oil supply tank 30 prior to use, the drum can 7 containing the new oil is transported to the base 1, and the yarn bottom surface 7 a is placed on the placing table 6. The board 9 is fitted and supported.

  Next, the drum can 7 is rotated and positioned by the positioning member 19 as described above, and then the positioning member 19 is removed and the oil remaining amount detecting means 26 is attached to the drum can 7.

  Next, the fluid pressure cylinder 12 is operated, and the mounting table 6 and the drum can 7 mounted thereon are moved to the rear end of the base 1, that is, the oil supply tank 30 as shown by a two-dot chain line in FIGS. Move to a replenishment position almost directly below. At this time, the supply / discharge oil port 7c of the drum can 7 and the suction pipe 43 of the oil replenishing means 41 are aligned vertically, so that the lifting / lowering fluid cylinder 38 is operated in a retracting direction to bring the support rod 39 to the lower limit. When lowered, the suction pipe 43 is automatically inserted into the drum can 7 through the oil filler opening 7c as shown in FIG.

  In this state, the pump 42 of the oil replenishing means 41 is operated to replenish all the oil in the drum can 7 to the oil supply tank 30. As a result, the oil replenishing device can be used.

  The empty drum can 7 is lowered from the mounting table 6 in the reverse procedure to the above, and the drum can 7 containing the new oil is set below the oil supply tank 30 again in the same procedure as above, and the suction pipe 43 Is inserted.

  During use, when the remaining oil level detection means 55 detects that the oil in the oil supply tank 30 has reached a predetermined amount or less, for example, a lower limit level (a level at which a predetermined amount of oil remains in the drum 7). Immediately, the pump 42 of the oil replenishing means 41 is activated, and a predetermined amount of oil in the drum can 7 is automatically replenished into the oil supply tank 30. Further, when the oil in the drum can 7 becomes empty, the oil remaining amount detecting means 26 is activated, and therefore, it may be replaced with the next new drum can 7.

  As described above, in the oil supply device of the above embodiment, when it is detected that the oil in the oil supply tank 30 is below the lower limit level, a predetermined amount of oil in the drum can 7 is automatically replenished immediately. Therefore, the labor of replenishment work can be saved and the work efficiency can be improved. The lower limit level is, for example, an amount of oil that does not completely disappear even if the oil in the oil supply tank 30 is continuously supplied to the oil supply object while the drum 7 is being replaced. Is preferably at a level that remains, and in this way, it can be avoided that supply of replacement oil to the oil supply target is interrupted during replacement of the drum 7.

  Further, when the oil in the drum can 7 becomes empty, the oil remaining amount detecting means 26 is activated and the notifying means issues an alarm. Therefore, before the oil in the oil supply tank 30 runs out, the drum can be quickly filled with new oil. Can be exchanged.

  In the above embodiment, when the oil remaining amount detecting means 55 detects that the oil in the oil supply tank 30 has fallen below the lower limit level, the entire amount of oil in the drum can 7 is replenished. Since oil is replenished from the drum 7 before the oil in the supply tank 30 is completely exhausted, the supply of oil is prevented from being interrupted. For example, the pump 42 is activated when empty, A certain amount of oil may be supplied from the drum 7. Further, when the remaining amount of the oil is detected by the oil remaining amount detecting means 55, the oil may be replenished from the drum 7 when it is detected that the remaining amount is less than half, for example, instead of detecting the lower limit level. .

  In such a case, when the set value of the pressure sensor of the oil remaining amount detecting means 55 is changed and the remaining amount of oil in the oil supply tank 30 reaches a predetermined amount, a pump is generated by a signal from the pressure sensor. What is necessary is just to control 42 to act | operate only for a fixed time.

  The remaining oil amount detection means 26 and 55 of the drum can 7 and the oil supply tank 30 may be the above-described bubble type, for example, a float type oil level sensor.

  In the oil supply device of the above embodiment, the drum can 7 and the oil supply tank 30 are arranged in the vertical direction, but they may be arranged in parallel with each other on the floor surface or the like. Further, the drum can 7 may be disposed above the oil supply tank 30.

  Furthermore, in the above-described embodiment, the mounting table 6 can be moved back and forth between the front limit position indicated by the solid line in FIG. 4 and the replenishment position indicated by the two-dot chain line by the fluid pressure cylinder 12. However, the present invention is not limited to the one that automatically moves the mounting table 6 in the front-rear direction, but at least the movement of the mounting table 6 toward the oil supply tank 30, that is, a new one that is filled with oil. For example, an urging means for urging the mounting table 6 toward the oil supply tank 30 side, such as a spring or a gas spring, may be used as long as it can assist the movement when the drum can 7 is moved to the replenishment position. May be.

It is a front view of the oil supply apparatus of this invention. Similarly, it is a right side view. Similarly, it is a left side view. It is also a plan view. It is a front view when an oil replenishing means is lowered similarly. FIG. 5 is an enlarged longitudinal sectional front view taken along line VI-VI in FIG. 4. It is an expanded sectional view of the important section in the state where the drum can was positioned by the positioning member. It is an enlarged front view of the suction pipe attachment part to a support rod.

Explanation of symbols

1 base 6 mounting base 7 drum can (reserve tank)
7a Yarn bottom surface 7b Ventilation port 7c Supply / discharge oil port 12 Fluid pressure cylinder (reciprocating means)
16 Bearing unit (rotation support means)
17 Positioning column 19 Positioning member (positioning means)
26 Oil remaining amount detecting means (second oil remaining amount detecting means)
30 Oil supply tank 32 Oil supply means 38 Fluid pressure cylinder (lifting means)
41 Oil replenishing means 43 Suction pipe 50 Closure member 55 Oil remaining amount detecting means (first oil remaining amount detecting means)

Claims (8)

An oil supply tank for supplying oil to an oil supply object, a reserve tank in which oil is stored, and a first oil remaining amount detecting means for detecting that the oil in the oil supply tank has reached a predetermined remaining amount; , By operating the first oil remaining amount detecting means, an oil replenishing means for replenishing the oil supply tank with a predetermined amount of oil in the reserve tank, and a second oil remaining amount for detecting the remaining amount of oil in the reserve tank. A base for supporting the oil supply tank, the base for supporting the oil supply tank is movably provided, and the reserve tank placed on the base is substantially below the oil supply tank. The reserve tank has a thread bottom surface that is circular and recessed upward, and the thread bottom surface projects from the top surface of the mounting table. Oil supply device being characterized in that as can fit from above on a plate-shaped mounting plate.   The oil supply apparatus according to claim 1, further comprising an informing means for informing that the oil has become empty when the second oil remaining amount detecting means detects that the oil in the reserve tank has become empty. Oil supply device according to claim 1 or 2 wherein comprises movement assist device for assisting the movement of the oil supply tank side of the stage. The oil supply device according to any one of claims 1 to 3 , wherein the mounting plate is provided with a plurality of rotation support means for rotatably supporting the yarn bottom surface of the reserve tank. The oil replenishing means has a suction pipe that can be inserted into and removed from the supply / discharge oil port provided on the upper surface of the reserve tank, and that can be moved up and down by the lifting means. The oil supply apparatus in any one of Claims 1 thru | or 4 . 6. The oil supply apparatus according to claim 5 , further comprising positioning means for positioning the reserve tank so that the supply / discharge oil port and the suction pipe are aligned vertically. Cylindrical positioning with positioning means attached to the horizontal arm at the upper end of the column upright on the mounting table so that it can be moved up and down, and the lower end is fitted around the ventilation port on the top of the reserve tank The oil supply apparatus according to claim 6 , which is a member. On the outer circumferential surface of the suction pipe, when the suction pipe is inserted to the lower limit position in the reserve tank, in either a 5- claim made by attaching a closure member 7 for closing from above the feed and discharge oil mouth of the reserve tank The oil supply device described.

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