JP2011195179A - Liquid feeding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove liquid (oil liquid) remaining in the discharge pipe of an oil feeding nozzle.SOLUTION: In a liquid feeding device 10, when the front end portion 92a of a first fitting portion 92 of a gating member 90 is detached from a refuelling opening 16b with the discharge pipe 36 turned upward, the gating member 90 is pushed in an X1 direction by the force of a first spring 120 and a second spring 130. Then, the valve part 98 of the gating member 90 opens the portion between a communication hole 37 and a second recovery hole 106 so as to close a first recovery hole 104. Thereby, when the discharge pipe 36 of the oil feeding nozzle 13 is pulled out of the refuelling opening 16b immediately after refueling is finished so that the discharge pipe 36 is turned upward, or when the oil feeding nozzle 13 is stored in a nozzle storage part 15 so that the discharge pipe 36 is turned upward, the liquid (oil liquid) remaining in the interior 36a of the discharge pipe 36 of the oil feeding nozzle 13 moves downward so as to be collected in a vapor recovery chamber 100 through the communication hole 37 and the second recovery hole 106.

Description

  The present invention relates to a liquid supply apparatus, and more particularly to a liquid supply apparatus configured to store a supply nozzle with a discharge pipe of the supply nozzle facing upward.

  Hereinafter, an oil supply device will be described as an example of the liquid supply device. For example, in a self-service type oil supply device, when the customer himself / herself operates the oil supply nozzle (supply nozzle) to complete the oil supply, the oil supply nozzle is provided in the device main body with the discharge pipe for discharging the oil liquid of the oil supply nozzle facing upward. The nozzle is housed in a nozzle housing part (also referred to as “nozzle hook”) (see, for example, Patent Document 1).

  At this time, the oil supply nozzle is in the full tank oil supply mode, the automatic valve closing mechanism based on the liquid level detection closes to stop the oil supply, and in the preset oil supply mode, the measured oil supply amount is the preset value. Since the pump is stopped at the point of time when oil is reached and the oil supply is stopped, oil liquid may remain in the discharge pipe in any case.

JP 2000-281199 A

  However, if the oil pipe remains upward in the oil supply nozzle discharge pipe as described above and the oil supply nozzle discharge pipe is turned up and returned to the nozzle housing, the next customer will insert the discharge pipe into the oil supply port. As a result, the oil pipe in the discharge pipe is discharged at the same time that the oil pipe is operated downward, and the oil liquid adheres to the customer's shoes, or the oil liquid adheres to the vehicle body. There was a problem.

  Further, in a state where the discharge port of the discharge pipe of the oil supply nozzle faces upward, rainwater may enter the discharge pipe on a day with strong wind and rain.

  Further, in the above, the background art and the problem to be solved by the invention have been described by taking a self-service type oil supply device as an example. For example, in a liquid supply device that supplies other liquid such as urea water However, there is a problem similar to that of the fueling device.

  Therefore, in view of the above circumstances, an object of the present invention is to provide a liquid supply apparatus that solves the above problems.

In order to solve the above problems, the present invention has the following means.
(1) The present invention provides a supply nozzle that discharges liquid from a discharge pipe by opening a nozzle lever, a nozzle storage section that stores the supply nozzle with the discharge pipe facing upward, and the supply nozzle In a liquid supply apparatus having a pump for supplying liquid,
A liquid discharge hole for discharging the liquid remaining in the discharge pipe after completion of the supply;
A recovery path communicating with the liquid discharge hole and recovering the liquid remaining in the discharge pipe;
The liquid discharge hole is closed when the discharge pipe is inserted into the supply port of the supply target, and the liquid discharge hole is opened when the discharge pipe is not inserted into the supply port of the supply target. A member, and
The liquid remaining in the discharge pipe is discharged to the recovery path by opening the liquid discharge hole.
(2) The present invention is characterized in that a suction means for sucking the liquid remaining in the discharge pipe is provided downstream of the recovery path.
(3) The present invention provides a vapor recovery nozzle cover that covers the outer periphery of the discharge pipe of the supply nozzle;
A vapor exhaust hole for exhausting the vapor discharged from the supply port of the supply body into the vapor collection storage cover to the outside of the vapor collection nozzle cover when the liquid is supplied to the supply body. ,
The open / close member opens the liquid discharge hole and closes the vapor exhaust hole in a state where the discharge pipe is not inserted into the supply port of the supply target, and the discharge pipe is inserted into the supply port of the supply target. In this state, the liquid discharge hole is closed and the vapor discharge hole is opened to connect the inside of the vapor recovery nozzle cover and the recovery path.

  According to the present invention, when the discharge pipe is not inserted into the supply port of the supply target due to the operation of the opening / closing member, the liquid discharge hole is opened, and the liquid remaining in the discharge pipe is discharged from the liquid discharge hole to the recovery path. Therefore, even if the supply nozzle is turned downward during the next liquid supply operation, the liquid does not flow out from the discharge pipe, so that it is possible to prevent the vehicle and shoes from being contaminated by the liquid remaining in the discharge pipe.

It is a front view which shows schematic structure of one Example of the oil supply apparatus as a liquid supply apparatus by this invention. It is a longitudinal cross-sectional view which shows the internal structure of a fueling nozzle. It is a cross-sectional view which shows the internal structure of a fueling nozzle. It is a longitudinal cross-sectional view which expands and shows the vapor | steam collection | recovery mechanism in the state which inserted the discharge pipe into the oil filler opening. It is a longitudinal cross-sectional view which expands and shows the collection | recovery mechanism which discharges | emits the residual oil liquid in a discharge pipe. It is a flowchart for demonstrating the control processing which the control apparatus of a fueling apparatus performs.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing a schematic configuration of an embodiment when the liquid supply apparatus according to the present invention is applied to an oil supply apparatus with a vapor recovery function. As shown in FIG. 1, an oil supply hose 14 connected to an oil supply nozzle (supply nozzle) 13 for supplying an oil liquid (liquid) is pulled out on the side surface of the casing 12 of the oil supply device 10 (liquid supply device). Yes. The oil supply nozzle 13 is normally stored in a nozzle storage portion 15 provided on the side surface of the housing 12. For example, when a customer's vehicle 16 arrives at a fuel station, the fuel supply nozzle 13 is removed from the nozzle storage portion 15. The fuel tank 16a of the vehicle 16 is inserted into the fuel filler port 16b.

  The nozzle switch 15 a provided in the nozzle storage portion 15 is turned off when the fuel supply nozzle 13 is removed from the nozzle hook 15, and is turned off when the fuel supply nozzle 13 is returned to the nozzle storage portion 15. Switch. The oil supply hose 14 has a double structure in which a vapor suction tube (collection path indicated by a broken line in FIG. 1) 22 is inserted into the internal flow path, and the liquid supply hose 14 is routed through the joint 26 in the housing 12. It is connected to the oil supply line 17 to be formed. The tip 17a of the oil supply line 17 extends and is inserted into an underground tank 18 as an oil liquid storage tank, and a flow meter 19 and an oil supply pump 20 are arranged in the middle of the oil supply line 17.

  In addition, the underground tank 18 is provided for every oil type, for example, regular gasoline is stored and the underground tank of other oil types is also provided separately although not shown. Further, the oil supply apparatus 10 is provided with a plurality of oil supply nozzles for each oil type, but in FIG. 1, only one oil supply nozzle 13 is shown for convenience of explanation. A cover member 80 having a vapor suction port 82 is provided at the base of the discharge pipe 36 of the fuel supply nozzle 13. Therefore, when the discharge pipe 36 and the vapor suction port 82 of the fuel supply nozzle 13 are inserted into the fuel supply port 16b of the fuel tank 16a, the vapor (oil vapor) in the fuel tank is sucked into the vapor suction port 82. The vapor suction port 82 communicates with one end of a vapor suction tube 22 formed along the oil supply hose 14, and the other end of the vapor suction tube 22 is oiled in the housing 12 via a joint 26. It is connected to a vapor suction line 23 (23a, 23b) that forms a vapor suction line.

  A vapor suction pump (suction means) 24 is disposed in the vapor suction line 23 (23a, 23b). The vapor suction pump 24 is driven to collect the vapor in the fuel tank during refueling as will be described later, and is stopped when refueling of the fuel nozzle 13 is completed.

  The control device 25 is supplied with each signal output from the nozzle switch 15a and the flow meter 19, and performs predetermined arithmetic processing to control the pump motor 20a of the oil supply pump 20 and the pump motor 24a of the vapor suction pump 24. Then, the current oil supply amount measured on the display 21 is displayed.

  Here, the configuration of the oil supply nozzle 13 having the vapor suction mechanism will be described with reference to FIGS. As shown in FIGS. 2 and 3, the oil supply nozzle 13 includes a discharge pipe 36, a nozzle body 40, and a nozzle lever 50. The nozzle main body 40 closes the main valve 42 when the main valve 42 opened by the operation of the nozzle lever 50 and the air introduction from the liquid level detection hole 60 provided at the tip of the discharge pipe 36 are shut off. And an automatic valve closing mechanism 44. A check valve 52 is provided downstream of the main valve 42 to close the flow path of the nozzle body 40 from the downstream side. The check valve 52 is opened when the main valve 42 is opened, and the valve is opened. When the main valve 42 is closed, the discharge of the oil is stopped and biased to the closed position. Thus, the oil liquid in the discharge pipe 36 is prevented from flowing backward. The check valve 52 is also provided so as to function as a valve for opening and closing the open end of the negative pressure generator 67 that opens into the flow path.

  The valve mechanism of the nozzle body 40 is connected to the gasoline supply path of the fueling device 10 via the fueling hose 14, and when the nozzle lever 50 is operated in the valve opening direction, the valve shaft 43 slides to the right in the figure. By opening the main valve 42, the oil liquid is discharged from the discharge pipe 36. The internal configuration of the nozzle body 30 is well known as described in Japanese Patent Application Laid-Open No. 2000-103500, and therefore the detailed configuration will be omitted here and the schematic configuration will be described.

  The discharge pipe 36 is formed by bending a metal pipe with a predetermined radius of curvature, and a liquid level detection hole 60 is provided on the outer periphery of the tip. The liquid level detection hole 60 is connected to the diaphragm chamber 46 (see FIG. 3) of the automatic valve closing mechanism 44 through a passage 45 (see FIG. 3) provided in the nozzle body 40 through a narrow tube 62 inserted into the discharge pipe 36. 3).

  The diaphragm 48 that defines the diaphragm chamber 46 holds the valve shaft 43 of the main valve 42 in the open position, and when the liquid level detection hole 60 is closed by the oil, the air suction of the negative pressure generating unit 67 is performed. As a result, the diaphragm chamber 46 is depressurized and the diaphragm 48 operates in the latch release direction to release the latch of the valve shaft 43. As a result, in the oil supply nozzle 13, when the liquid level reaches the liquid level detection hole 60, the main valve 42 is closed by the spring force of the coil springs 47 and 49 together with the valve shaft 43 to automatically discharge the oil liquid. Stop.

  As shown in FIG. 2, the oil supply nozzle 13 has a vapor suction mechanism 70. The vapor suction mechanism 70 includes a cover member (vapor recovery nozzle cover) 80, an opening / closing member 90, and a vapor recovery chamber (recovery path) 100. The cover member 80 is made of rubber and formed in a cup shape so as to cover the root portion of the discharge pipe 36, and when the discharge pipe 36 of the fuel supply nozzle 13 is inserted into the fuel supply port 16b of the fuel tank 16a, the fuel supply port It is pressed in close contact with the periphery of 16b. Therefore, the nozzle lever 50 of the fuel supply nozzle 13 is operated in the valve opening direction, the oil liquid is discharged to the fuel tank 16a, and the vapor of the fuel tank 16a is released into the atmosphere from the fuel supply port 16b as the liquid level rises. . However, since the cover member 80 covers the fuel filler port 16b, the vapor discharged from the fuel filler port 16b is prevented from diffusing into the atmosphere by the cover member 80.

  The opening / closing member 90 is slidably attached to the outer periphery of the base portion of the discharge pipe 36 and the outer periphery of the nozzle body 40.

  The vapor collection chamber 100 has an upper portion communicating with one of the inside of the cover member 80 and the inside of the discharge pipe 36 according to the sliding position of the opening / closing member 90, and a vapor suction chamber in which the lower portion is inserted into the oil supply hose 14. The tube 22 is connected. Accordingly, the opening / closing member 90 moves according to the operation state of the oil supply nozzle 13 and switches the communication state connected to the vapor recovery chamber 100 as will be described later, so that the oil liquid remaining in the interior 36a of the discharge pipe 36 is changed. The switching operation is performed so as to perform either recovery or recovery of the vapor generated in the fuel tank 16a during refueling.

  Here, the configuration and operation of the opening / closing member 90 will be described in more detail.

  FIG. 4 is an enlarged longitudinal sectional view showing the vapor recovery mechanism in a state where the discharge pipe is inserted into the fuel filler opening. As shown in FIG. 4, the wall portion 102 defining the vapor recovery chamber 100 has a first recovery hole 104 (vapor exhaust hole) communicating with the internal space of the cover member 80 and a position facing the communication hole 37. And a second recovery hole 106 (liquid discharge hole). In addition, a communication hole 37 is provided at the base portion of the discharge pipe 36 so as to face the outside of the second recovery hole 106. The communication hole 37 is provided below the discharge pipe 36 so as to communicate between the interior 36 a of the discharge pipe 36 and the second recovery hole 106.

  One end of the cover member 80 that extends in a tapered shape is a vapor suction port 82, and the other end is fitted and fixed to the outer periphery of the nozzle body 40.

  The opening / closing member 90 includes a first fitting portion 92 that fits on the outer periphery of the discharge pipe 36, a second fitting portion 94 that fits on the outer periphery of the nozzle body 40, and the first fitting portion 92 and the second fitting. And a valve portion 98 inserted into a gap 110 formed between the wall portion 102 of the vapor recovery chamber 100 and the outer periphery of the nozzle body 40.

  The valve portion 98 is integrally fixed to the end portion of the second fitting portion 94 and is formed to be thicker than the radial thickness of the second fitting portion 94. Therefore, the valve portion 98 opens either the first recovery hole 104 or the second recovery hole 106 and closes the other according to the sliding operation position of the second fitting portion 94.

  The opening / closing member 90 includes a first spring 120 disposed between a step portion 96 and a step portion 36 b formed at the root portion of the discharge pipe 36, an end portion of the valve portion 98, and a step portion 40 a of the nozzle body 40. It is urged | biased by the X1 direction with the 2nd spring 130 distribute | arranged between these.

  When the tip of the discharge pipe 36 is inserted into the fuel supply port 16b of the fuel tank 16a with the discharge pipe 36 of the fuel supply nozzle 13 being horizontal or downward from the horizontal at the time of refueling, the end of the fuel supply port 16b becomes the first opening / closing member 90. It abuts on the tip end portion 92 a of the fitting portion 92. In FIG. 4, the tip end portion 92 a of the first fitting portion 92 is shown in contact with the entire circumference of the oil filler port 16 b. However, during the actual refueling operation, the refueling nozzle 13 is often in a state where the discharge pipe 36 is inclined downward from the horizontal, so in most cases, a part of the annular tip portion 92a is formed. Will contact the fuel filler opening 16b. For this reason, even if the tip end portion 92a of the first fitting portion 92 abuts on the fuel filler opening 16b, vapor recovery during fueling is not hindered.

  Further, by pushing the fuel supply nozzle 13 in the insertion direction (X1 direction), the cover member 80 formed so as to extend and contract covers the fuel supply port 16b, and the end on the vapor suction port 82 side faces the wall 16c on the vehicle side. In close contact. Since the opening / closing member 90 slides relatively in the X2 direction as the oil supply nozzle 13 is pressed in the X1 direction, the valve portion 98 opens the first recovery hole 104 and the communication hole 37. It moves to the closed position that blocks the second recovery hole 106.

  Thereby, when the nozzle lever 50 is operated in the valve opening direction to open the main valve 42, the oil liquid pumped from the underground tank 18 by the pump 20 is sent to the oil supply nozzle 13 through the oil supply hose 14, The fuel is discharged from the tip discharge of the discharge pipe 36 to the fuel tank 16a. In the fuel tank 16 a, the vapor generated in the tank due to the rise of the liquid level due to the oil discharged from the fuel nozzle 13 is discharged from the gap between the fuel inlet 16 b and the discharge pipe 36.

  At this time, since the periphery of the fuel filler port 16b is covered with the cover member 80, the vapor discharged from the fuel filler port 16b is prevented from diffusing by the cover member 80, and is absorbed by the suction force of the vapor suction pump 24. It passes through one recovery hole 104 and is recovered in the vapor recovery chamber 100. The vapor collected in the vapor collection chamber 100 is collected in the underground tank 18 through the vapor suction tube 22 and the vapor suction pipe 23.

  FIG. 5 is an enlarged longitudinal sectional view showing a recovery mechanism for discharging the residual oil liquid in the discharge pipe. As shown in FIG. 5, the recovery mechanism 110 is configured to use the opening / closing member 90 as a recovery switching valve.

  For example, when the refueling nozzle 13 is not refueling, it is stored in the nozzle storage section 15 with the discharge pipe 36 facing upward, and even during the refueling operation, the discharge pipe 36 is discharged until it is inserted into the refueling port 16b. In many cases, the pipe 36 is held in an upward state.

  As described above, in a state where the discharge pipe 36 is directed upward, the opening / closing member 90 is moved to the first spring 120 and the second spring 130 when the distal end portion 92a of the first fitting portion 92 of the opening / closing member 90 is separated from the fuel filler port 16b. Is pushed out in the vertical direction (Y1 direction) by the spring force.

  Therefore, since the opening / closing member 90 at the time of non-lubrication slides in the vertical direction (Y1 direction), the valve portion 98 opens between the communication hole 37 and the second recovery hole 106, and the first recovery hole 104 is opened. Close. Thus, in the non-oil supply state, the interior 36 a of the discharge pipe 36 of the fuel supply nozzle 13 is communicated with the vapor collection chamber 100 via the communication hole 37 and the second collection hole 106.

  For example, immediately after the end of refueling, when the discharge pipe 36 of the oil supply nozzle 13 is pulled out from the oil supply port 16 b and the discharge pipe 36 is directed upward, or the oil supply nozzle 13 is stored in the nozzle storage portion 15, the discharge pipe 36 is directed upward. At this time, the oil remaining in the inside 36 a of the discharge pipe 36 of the oil supply nozzle 13 moves downward and is recovered in the vapor recovery chamber 100 through the communication hole 37 and the second recovery hole 106. Further, the oil liquid collected in the vapor collection chamber 100 is collected in the underground tank 18 through a collection path such as the vapor suction tube 22 and the vapor suction pipe line 23.

  Therefore, by making the discharge port of the discharge pipe 36 of the oil supply nozzle 13 face upward, the oil liquid remaining in the discharge pipe 36 flows downward by gravity and is collected in the vapor suction tube 22 and the vapor suction line 23. Therefore, the oil liquid in the discharge pipe 36 can be recovered even before the vapor suction pump 24 is activated.

  As described above, after the refueling is completed, the oil liquid accumulated in the discharge pipe 36 can be recovered from the discharge pipe 36. Therefore, the customer who performs the next refueling removes the refueling nozzle 13 from the nozzle storage portion 15 and performs the refueling operation. When the discharge pipe 36 is turned downward to try, the oil liquid does not flow out of the discharge pipe 36, so that the oil liquid is prevented from adhering to the vehicle or to the customer's shoes and clothes. .

  FIG. 6 is a flowchart for explaining a control process executed by the control device of the fueling device. As shown in FIG. 6, the control device 25 checks whether or not the nozzle switch 15 a provided in the nozzle storage unit 15 is on in S <b> 11. In S11, when the oil supply nozzle 13 is lifted from the nozzle housing 15 and the nozzle switch 15a is turned on (in the case of YES), the process proceeds to S12. In S12, the motor 24a of the vapor suction pump 24 is activated. As a result, the oil remaining in the interior 36a of the discharge pipe 36 is removed from the recovery path (the communication hole 37, the second recovery hole 106, the vapor recovery chamber 100, the vapor suction tube 22, the vapor before the start of refueling. It is possible to collect in the underground tank 18 by the suction force of the vapor suction pump 24 via the suction line 23).

  Then, it progresses to S13 and the pump motor 20a of the oil supply pump 20 is started. When an operator (customer) inserts the discharge pipe 36 of the fuel supply nozzle 13 into the fuel supply port 16b of the fuel tank 16a and operates the nozzle lever 50 in the valve opening direction, the oil liquid pumped to the fuel supply pump 20 is supplied to the fuel supply hose 14 and It is discharged to the fuel tank 16a through the fuel supply nozzle 13.

  In S <b> 14, the discharge flow rate is measured by the flow meter 19 together with the start of refueling, and the flow rate integrated value is displayed on the display 21.

  Subsequently, in S15, it is checked whether the nozzle switch 15a is off. In S15, when the nozzle switch 15a is turned on (in the case of NO), since refueling is still continued, the process returns to S14, and the processes of S14 and S15 are repeated.

  In S15, when the nozzle switch 15a is OFF (in the case of YES), it is determined that the fuel supply nozzle 13 has been returned to the nozzle storage unit 15, and the process proceeds to S16. In S16, the pump motor 20a of the oil supply pump 20 is stopped. Thereby, discharge of the oil liquid by the oil supply nozzle 13 is stopped. Furthermore, it progresses to S17 and it is checked whether the preset predetermined time (for example, about 2-3 minutes) passed.

In S17, the start of the motor 24a of the vapor suction pump 24 is continued until a predetermined time after the end of refueling has elapsed (in the case of NO), and the oil liquid remaining in the interior 36a of the discharge pipe 36 is removed from the recovery path ( It is possible to collect in the underground tank 18 through the communication hole 37, the second collection hole 106, the vapor collection chamber 100, the vapor suction tube 22, and the vapor suction pipe line 23).
In S17, when the predetermined time after the end of refueling has elapsed (in the case of YES), the process proceeds to S18 and the motor 24a of the vapor suction pump 24 is stopped. As a result, even after the refueling is completed, even if the refueling nozzle 13 is returned to the nozzle housing portion 15, the motor 24a of the vapor suction pump 24 is activated for a predetermined time, so that the oil remaining in the discharge pipe 36 is vaporized. The suction force of the suction pump 24 enables efficient recovery to the underground tank 18.

  Further, when the oil supply nozzle 13 is removed from the nozzle housing portion 15, the motor 24a of the vapor suction pump 24 is started. Therefore, even if oil remains in the discharge pipe 36, the oil supply nozzle 13 will be turned on at the next oil supply. The oil remaining in the discharge pipe 36 when removed from the nozzle housing 15 can be recovered in the underground tank 18 by the suction force of the vapor suction pump 24.

  In this way, the oil liquid remaining in the discharge pipe 36 of the oil supply nozzle 13 is recovered in the underground tank 18 by executing at least one of the control processes before the start of oil supply of the oil supply nozzle 13 and after the end of oil supply. Therefore, it is possible to prevent the oil remaining in the discharge pipe 26 from being discharged when the operator (customer) who performs the next oil supply operation turns the oil supply nozzle 13 downward.

  In the above embodiment, the oil supply device that supplies oil as an example of the liquid supply device has been described. However, the liquid supply device of the present invention is not limited to the oil supply device. For example, a liquid such as urea water or alcohol may be used. Needless to say, the present invention can be applied to a liquid supply device to be supplied.

  Further, in the above embodiment, the self-oiling type fueling device installed at the gas station has been given as an example. However, the present invention is not limited to this, and the fueling device other than the self-fueling method or the facility other than the gas station (for example, a transportation company) Of course, the present invention can also be applied to a fueling device installed in a bus company or the like.

  Moreover, in the said Example, although the oil supply apparatus comprised so that vapor | steam collection | recovery was mentioned was mentioned as an example, it is not restricted to this, A vapor | suction suction pump is not essential and a thing without a vapor | steam collection mechanism and a vapor | suction suction pump Of course, the present invention can also be applied.

  Further, in the above-described embodiment, the configuration in which the oil liquid remaining in the discharge pipe of the oil supply nozzle is collected by the suction force of the vapor suction pump is taken as an example, but not limited thereto, instead of the vapor suction pump. For example, it is a matter of course that an oil liquid suction pump may be provided.

DESCRIPTION OF SYMBOLS 10 Oil supply apparatus 12 Case 13 Oil supply nozzle 14 Oil supply hose 15 Nozzle accommodating part 15a Nozzle switch 16 Vehicle 16a Fuel tank 16b Oil supply port 17 Oil supply line 18 Underground tank 19 Flow meter 20 Oil supply pump 22 Vapor suction tube 23 Vapor suction line 24 Vapor suction pump 25 Control device 36 Discharge pipe 37 Communication hole 40 Nozzle body 42 Main valve 43 Valve shaft 44 Automatic valve closing mechanism 46 Diaphragm chamber 48 Diaphragm 50 Nozzle lever 52 Check valve 60 Liquid level detection hole 67 Negative pressure generating part 70 Vapor Suction mechanism 80 Cover member 82 Vapor suction port 90 Opening / closing member 92 First fitting portion 94 Second fitting portion 96 Step portion 98 Valve portion 100 Vapor collection chamber 104 First collection hole 106 Second collection hole 110 Clearance 120 First spring 130 Second spring

Claims (3)

A supply nozzle that discharges the liquid from the discharge pipe by opening the nozzle lever, a nozzle storage portion that stores the supply nozzle with the discharge pipe facing upward, and a pump that supplies the liquid to the supply nozzle A liquid supply apparatus comprising:
A liquid discharge hole for discharging the liquid remaining in the discharge pipe after completion of the supply;
A recovery path communicating with the liquid discharge hole and recovering the liquid remaining in the discharge pipe;
The liquid discharge hole is closed when the discharge pipe is inserted into the supply port of the supply target, and the liquid discharge hole is opened when the discharge pipe is not inserted into the supply port of the supply target. A member, and
A liquid supply apparatus, wherein the liquid remaining in the discharge pipe is discharged to the recovery path by opening the liquid discharge hole.   The liquid supply apparatus according to claim 1, wherein suction means for sucking liquid remaining in the discharge pipe is provided downstream of the recovery path. A vapor recovery nozzle cover covering the outer periphery of the discharge pipe of the supply nozzle;
A vapor exhaust hole for exhausting the vapor discharged from the supply port of the supply body into the vapor collection storage cover to the outside of the vapor collection nozzle cover when the liquid is supplied to the supply body. ,
The open / close member opens the liquid discharge hole and closes the vapor exhaust hole in a state where the discharge pipe is not inserted into the supply port of the supply target, and the discharge pipe is inserted into the supply port of the supply target. 3. The liquid supply according to claim 1, wherein the liquid discharge hole is closed and the vapor discharge hole is opened to allow the inside of the vapor recovery nozzle cover to communicate with the recovery path. apparatus.

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