JP4049867B2 - Hose connection structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hose connection for transmitting a connection state between a tank filling port of a tank for storing petroleum products such as gasoline in a gas station such as a gas station and a supply hose of a tank truck to the outside. Concerning structure.
[0002]
[Prior art]
In a gas station such as a gas station, a tank for storing petroleum products such as gasoline is buried underground, and a tubular oil filler port extending above the tank is provided in the tank.
[0003]
In general, in order to bring petroleum products such as gasoline into a tank at a gas station, a tanker truck transports petroleum products and carries it from the tank truck through a hose. The oil product in the tank of the tank truck is put into the tank of the gas station.
[0004]
However, petroleum products handled at gas stations are classified into multiple types such as high-octane gasoline, regular gasoline, light oil, and kerosene, and have tanks for storing each oil type. It is configured to have an in-vehicle tank for each species, and when carrying various petroleum products from a tank lorry vehicle to a tank at a gas filling station, confirmation work is required so that the oil types are not different from each other.
[0005]
Conventionally, this confirmation work has been done by the tanker truck operator and the operator in charge of the gas station pointing and calling each other, and connecting the tank holly car hose to the oil filler port of the gas station. It is supposed to unload petroleum products.
[0006]
[Problems to be solved by the invention]
However, the confirmation work between such a tank truck driver and the operator in charge of the gas station is very complicated, and if a mistake occurs in the pointing and calling operation of each other, the gas station There is a problem in that different oil types are mixed in the tank and a long time is required for the restoration work.
[0007]
In addition, the work of unloading a load to a predetermined position is a normal load. By providing a detection device such as an electrical sensor, double and triple checks are performed. However, since the load to be handled is an explosive hazardous material that is strictly prohibited from fire and is a petroleum product that must be handled with care, an electrical sensor must be installed. It is impossible to arrange them, and this also has the disadvantage that the unloading work is troublesome.
[0008]
Therefore, in order to solve the above-described problems, the present invention provides a connection between a tank holly car hose and a gas filling station filler port when unloading a petroleum product transported by a tank truck at a gas filling station. It is an object of the present invention to provide a hose connection structure that can easily confirm the above and can eliminate the troublesome work of unloading.
[0009]
[Means for Solving the Problems]
Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The hose connection structure of the present invention is provided in a tank for storing petroleum products in a gas station 6, and is provided with a fuel filler port 2 that projects from the tank and is formed in a tubular shape.
It is provided at the tip of a hose 3 connected to a discharge port of an in-vehicle tank of a tank lorry vehicle that supplies the petroleum product to the tank of the fueling station 6, and is externally fitted and connected to the fuel supply port 2 in a receiving shape. Connection port 4;
When the connection port 4 is connected to the outer peripheral surface 8a of the oil supply port 2, the oil supply port 2 contacts the opening edge of the connection port 4 and is pressed by the opening edge. And a detection unit 10 having a mechanical structure that transmits a connection state of the connection port 4 to the outside,
Equipped with,
The detection unit 10 includes a sensing piece 11 that is pressed against the opening edge of the connection port 4, a wire 16 that has one end fixed to the sensing piece 11 and interlocked with the pressing of the sensing piece 11, and the other end of the wire 16 A switch mechanism that is operated by movement of a wire and sends a signal generated by the operation to the outside, and the switch mechanism is a structure installed in the site of the gas station 6 The switch box 18 is provided in the switch box 18 .
[0010]
The detection unit 10 may include a swingable sensing piece 11, and the opening edge of the connection port 4 may be in contact with and pressed against the sensing piece 11.
[0011]
With such a configuration, when unloading the petroleum product transported by the tank truck at the gas station 6, only the operation of connecting the hose 3 of the tank truck and the fuel inlet 2 of the gas station 6 to each other, With the mechanical structure of swinging the sensing piece 11 of the detecting unit 10, the mutual connection state is transmitted to the outside. From this, the mutual connection can be easily confirmed, and the confirmation at the time of unloading The troublesome work can be eliminated, and when the oil filler 2 has a plurality of configurations, it can be easily confirmed to which oil filler 2 the hose 3 is connected. The oil type on the tank truck is not mistaken, and mistakes such as mixing different oil types are prevented.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a side view showing an embodiment of a hose connection structure according to the present invention.
[0013]
The hose connection structure 1 according to the present invention has been described in the prior art. However, the fuel filler 2 of a tank (not shown) for storing a petroleum product buried underground in a gas station such as a gas station, and a petroleum product. The hose 3 connected to the on-vehicle tank of the tank lorry vehicle that transports the vehicle is connected to each other.
[0014]
The tanker truck has a structure having an in-vehicle tank (not shown) for loading a plurality of oil products such as high octane gasoline, regular gasoline, light oil, kerosene, etc. At the bottom of each on-board tank, a bottom valve for allowing the petroleum product in the on-vehicle tank to flow out is provided.
[0015]
These bottom valves are connected to a tube, and the tube is provided with a discharge port that opens to the outside.
[0016]
The base end of the hose 3 is connected to the discharge port when the tank truck supplies the petroleum product to the tank of the gas station at the gas station.
[0017]
The tip of the hose 3 is provided with a connection port 4 that is connected to a fueling port 2 of a gas station, which will be described later. The inner diameter is formed so as to be substantially the same as the outer diameter of the fuel filler opening 2.
[0018]
Further, the connection port 4 is provided with a connection fixing mechanism including a clamp mechanism for narrowing the inner diameter, and an operation lever 5 for operating the connection fixing mechanism is provided on the outer peripheral surface near the opening of the connection port 4. It has been.
[0019]
Each bottom valve is provided with an opening / closing mechanism (not shown) made of a handle wheel or the like corresponding to the bottom valve on the upper surface of each on-vehicle tank, and is opened and closed by the opening / closing mechanism. .
[0020]
Next, the filling port 2 of the filling station 6 is provided in each tank that individually stores four types of petroleum products, for example, high-octane gasoline, regular gasoline, light oil, and kerosene, for each type of petroleum product at a filling station such as a gas station. These tanks extend upward with respect to these tanks and are provided so as to protrude from the ground.
[0021]
In the present embodiment, as shown in FIG. 2, each fuel filler 2 is arranged so that the fuel fillers 2 are arranged in parallel, and is a substantially rectangular box-shaped structure 7 installed in the site of the fueling station 6. It is arrange | positioned so that it may be surrounded by.
[0022]
Further, as shown in FIG. 1, each of the fuel filler ports 2 is formed in a tubular shape that extends vertically upward with respect to the bottom surface (ground) of the structure 7 and is bent in the middle, and the opening of the carry-in entrance 8 at the tip is formed. In addition to being formed to be slightly inclined with respect to the ground, the outer diameter of the carry-in port 8 is formed to be substantially the same as the inner diameter of the connection port 4 of the hose 3 described above, that is, it constitutes an insertion port. .
[0023]
A concave groove 9 is continuously formed in the circumferential direction on the outer peripheral surface 8 a close to the opening edge of the carry-in port 8.
[0024]
Moreover, the detection part 10 is arrange | positioned in the carrying-in entrance part 8 of each oil supply port 2 located in a little base end side from the said groove 9 in the outer peripheral surface 8a.
[0025]
In this embodiment, the detection unit 10 includes a sensing piece 11 and a cable 15.
[0026]
The sensing piece 11 is located at a part of the outer peripheral surface 8a of the carry-in port 8 at the fuel filler 2 and is provided with a support shaft 12 extending in a direction substantially perpendicular to the axis of the fuel filler 2 with a midway portion as a shaft. The support bracket 12 is supported so as to be swingable.
[0027]
The sensing piece 11 is formed in a slightly elongated shape along the support bracket 12 so as to extend to both sides with respect to the axially supported midway portion, and supported by an abutting end portion 13 as one end portion. The bracket 12 extends to the base end side, and the tip thereof is formed so as to be close to the outer peripheral surface 8a of the carry-in entrance portion 8, and the other end of the working end portion 14 is the tip end side of the support bracket 12, that is, It extends in a direction away from the outer peripheral surface 8 a of the carry-in entrance 8.
[0028]
In the cable 15, the wire 16 is covered with the tube body 17, and the wire 16 is slidable in the longitudinal direction with respect to the tube body 17, and one end of the tube body 17 is fixed to the support bracket 12. with the one end of the wire 16, through the support bracket 12 is secured to the working end 14 of the sensing strip 11, so the wire 16 is slid in conjunction with the oscillation of the sensing piece 11 Yes.
[0029]
Although not shown, the cable 15 is provided with a biasing member so that the wire 16 is pulled toward the other end with respect to the tube body 17, that is, the wire 16 of the cable 15. The working end 14 of the sensing piece 11 fixed to one end of the sensing piece 11 is always pulled. The abutting end 13 of the sensing piece 11 is separated from the base end side of the support bracket 12, and the abutting end 13 Is directed in the direction of the concave groove 9 in the carry-in entrance 8.
[0030]
Then, the cable 15 is routed along the fuel supply port 2 in the structure 7 surrounding each of the fuel supply ports 2, and the other end of the cable 15 is disposed so as to extend to the outside of the structure 7. The switch box 18 provided on the outer wall of the structure 7 as shown in FIG.
[0031]
In the switch box 18, each other end of each wire 16 of each cable 15 disposed in each oil supply port 2 is connected to a switch mechanism (not shown), and an on / off signal is generated by the operation of these switch mechanisms. Is set as a control signal in a desired control circuit or the like, and the signal is sent to the outside via, for example, the transmitter 19.
[0032]
The signal transmitted by the transmitter 19 is transmitted as radio waves, infrared rays, and the like, and although not shown, from which detection unit 10 of the fuel filler port 2 the signal is emitted by a control unit equipped with a receiver. And controlling the display, for example, to display the state by light emission, for example.
[0033]
Next, the operation of the hose connection structure configured as described above will be described.
[0034]
First, when the connection port 4 of the hose 3 of the tank truck is not connected to the fuel supply port 2 of the fueling station 6, the sensing piece 11 is biased so that the position where the contact end 13 extends is provided in the cable 15. Due to the urging force of the member, the support bracket 12 is separated from the base end side, and the tip end of the contact end portion 13 is directed toward the concave groove 9 in the carry-in entrance portion 8 (see FIG. 1).
[0035]
Now, when the tank truck loaded with petroleum products for each oil type arrives at the filling station 6, the tank truck operator will connect the hose 3 to the discharge port connected to the in-vehicle tank via the bottom valve. Connect the ends.
[0036]
Next, the connection port 4 at the tip of the hose 3 is connected to the fuel supply port 2 of the gas station 6.
[0037]
In this connection, the connection port 4 of the hose 3 is in the shape of a receiving port, and the carry-in port 8 of the fuel filler port 2 is formed in an insertion port shape. Are externally fitted and connected (see FIG. 3).
[0038]
Then, the operation lever 5 of the connection fixing mechanism provided in the connection port 4 is operated to narrow the inner diameter of the connection port 4 and connect each other in a fixed state.
[0039]
At the same time when the connection port 4 of the hose 3 and the carry-in port 8 of the fuel filler port 2 are connected, the opening edge of the connection port 4 abuts against the abutting end 13 of the sensing piece 11 of the sensing unit 10, and this The abutting end portion 13 is pressed, and the sensing piece 11 is swung around the shaft support portion (see FIG. 4).
[0040]
The swinging sensing piece 11 pulls the wire 16 of the cable 15 on the operating end 14 side, thereby operating the switch mechanism in the switch box 18 provided on the outer wall of the structure 7, and via the transmitter 19. Send the signal to the outside.
[0041]
And the signal sent out by the transmitter controls the display by a control unit (not shown) or the like, and displays that the hose 3 and the fuel filler 2 are connected.
[0042]
Therefore, in the hose connection structure configured as described above, when unloading the petroleum product transported by the tank truck at the gas station 6, the hose 3 of the tank truck and the gas inlet 2 of the gas station 6 are connected. Since only the operation of connecting each other is to oscillate the sensing piece 11 of the detecting unit 10 and transmit the mutual connection state to the outside, it becomes possible to easily confirm the mutual connection, The troublesome confirmation work at the time of unloading can be eliminated.
[0043]
In addition, when there are a plurality of fuel filler ports 2, it is possible to easily check which fuel filler port 2 is connected to the hose 3, so the oil type on the fuel filler port 2 side and the oil type on the tank lorry vehicle side are the same. Therefore, it is possible to prevent mistakes such as mixing of different oil types.
[0044]
Furthermore, the detection unit 10 that detects the connection between the fuel filler 2 and the connection port 4 of the hose 3 has a structure in which the sensing piece 11 swings in the present embodiment, and is based on a mechanical structure without an electrical configuration. Therefore, there is no risk of ignition when handling dangerous petroleum products that are strictly prohibited from fire. In other words, confirmation of the connection between the fuel filler port 2 and the connection port 4 is performed outside. It can be provided in a display device or the like, and a configuration in which the connection state and the like can be easily confirmed, for example, in a gas station or on the tank truck side is possible.
[0045]
In the above-described embodiment, the configuration of the detection unit 10 has been described with respect to the example in which the swingable sensing piece 11 is provided. However, the configuration of the detection unit 10 is not limited to this configuration. You may comprise with a movable sensing piece.
[0046]
In this case, for example, the sensing piece is formed in a short bowl shape and is configured to be slidable in the same direction as the axis of the fuel filler port 2, and the connection port 4 of the hose 3 is connected to the fuel filler port 2. Thus, the opening edge of the connection port 4 abuts against the hook-shaped sensing piece, and the sensing piece is pressed and slid in the axial direction.
Then, the sliding movement of the sensing piece is transmitted as the sliding of the cable 15 similarly to the above-described embodiment, and this is transmitted to the outside.
[0047]
【The invention's effect】
As described above, in the hose coupling structure according to the present invention, when unloading the petroleum product transported by the tank truck at the filling station, the hose of the tank truck and the filling port of the filling station are connected to each other. Since the detection unit is configured to transmit the connection status to the outside only with the work, it is possible to easily check each other's connection, and the troublesome confirmation work at the time of unloading can be eliminated. An effect is obtained.
[0048]
In addition, when there are multiple types of petroleum products to be handled and there are a plurality of corresponding oil supply ports, it is possible to easily check which oil supply port the hose is connected to. This makes it possible to clearly confirm that the oil type on the tank and the oil type on the tank lorry vehicle side is the same, and to prevent mistakes such as mixing of different oil types.
[0049]
In addition, because the detection unit that detects the connection between the filling port of the gas station and the connection port of the hose is composed of a mechanical system structure that does not have an electrical configuration, it handles petroleum products that are hazardous materials that are strictly prohibited from fire. At the time of ignition, there is no risk of ignition, that is, it is possible to provide a display device with another configuration connected to the detection unit and configured externally to confirm the connection between the fuel filler port and the connection port. There is an effect that the confirmation work can be automated so that the state can be easily confirmed.
[0050]
In addition, since the structure of the detection unit includes a swingable sensing piece, the configuration of the detection unit can be obtained with a simple mechanical system structure. There is an effect that the configuration for detecting the connection state can be easily obtained, and since it has a simple structure, it can be easily added to the existing fuel filler.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a hose connection structure according to the present invention. FIG. 2 is a front view of a fuel filler port according to the embodiment. FIG. 4 is an operation explanatory diagram of the hose connection structure in the same embodiment.
DESCRIPTION OF SYMBOLS 1 ... Hose connection structure 2 ... Refueling port 3 ... Hose 4 ... Connection port 6 ... Gas station 8a ... Outer peripheral surface 10 ... Detection part 11 ... Sensing piece

Claims (2)

A tank for storing petroleum products at a gas station, and a fuel filler port that protrudes from the tank and has a tubular shape;
A connection port provided at a tip of a hose connected to a discharge port of an on-vehicle tank of a tank truck that supplies the petroleum product to the tank of the gas filling station, and is externally fitted and connected to the fuel supply port in a receiving shape; ,
When the connection port is connected to the outer peripheral surface of the fuel filler port, the oil filler port contacts the opening edge of the connection port and is pressed by the opening edge to Comprising a mechanical structure that transmits the connected state of the outside to the outside ,
The detection unit is a switch mechanism in which a sensing piece pressed against the opening edge of the connection port, a wire fixed at one end to the sensing piece and interlocked with the pressing of the sensing piece, and the other end of the wire are connected. And a switch mechanism that operates by moving the wire and sends a signal generated by the operation to the outside, and the switch mechanism is provided in a switch box provided in a structure installed in the site of the gas station. Hose connection structure characterized by that.   2. The hose coupling structure according to claim 1, wherein the detection unit includes a swingable sensing piece, and an opening edge of the connection port is in contact with and pressed against the sensing piece.

Images