KR200383919Y1 - Fuel nozzle for mixing prevention of lubricator - Google Patents

Abstract

The present invention relates to a blending prevention nozzle of a lubricator, and more particularly, to prevent mixing of different fuels by preventing fuel from being injected when a spout of a gasoline fuel filling nozzle is inserted into a fuel inlet of a vehicle using diesel fuel. And the structure is simple and reduces the manufacturing cost, and relates to the oil mixing nozzle of the lubricator that does not cause abnormal operation and failure even in a long time use.

The present invention is connected to the hose of the lubricator nozzle body 110 having a lever 111 for controlling the fuel supply, and extending from the nozzle body 110 and the air inlet hole 121 for the detection of air at the end side In the nozzle of the lubricator comprising the formed spout 120, the slider 130 is installed to be elastically slidable to the spout 120 by installing an elastic member 170 on the outer periphery of the spout 120, The spout 120 is inserted / installed inside the one end is connected to the air inlet hole 121 and the other end is connected to the nozzle body 110, the air introduced into the air inlet hole 121 to the nozzle body And an opening and closing means 140 for selectively opening and closing the inside of the air transfer pipe 150 in response to the forward and backward movement of the slider 130. It is done.

Description

Fuel nozzle for mixing prevention of lubricator

The present invention relates to a blending prevention nozzle of a lubricator, and more particularly, to prevent mixing of different fuels by preventing fuel from being injected when a spout of a gasoline fuel filling nozzle is inserted into a fuel inlet of a vehicle using diesel fuel. And the structure is simple and reduces the manufacturing cost, and relates to the oil mixing nozzle of the lubricator that does not cause abnormal operation and failure even in a long time use.

In general, the lubricator is a device for injecting oil from the oil storage tank installed in the basement to supply oil through a hose, etc., which includes an oil lubricator main body including oil suction therein and various related mechanical devices thereof, It is composed of a fuel injection nozzle connected to the hose so that the oil sucked by the mechanical operation inside the main body to supply to the fuel tank of the vehicle.

And, as shown in Figures 1 and 2, the lubricating nozzle 1 is a nozzle body (2) formed so that a person can easily grip by hand, and extending / protruding from the nozzle body (2) The spout 10 is formed so that the oil flowing into the nozzle body 2 through the hose 4 can be supplied to the fuel tank 20 of the vehicle, and a lever is provided on the lower side of the nozzle body 2. (3) is provided and configured to perform opening and closing operation of the flow path by a person's pull and release selection.

That is, the lever 3 is connected to the solenoid valve 5 for opening and closing the flow path therein and one end thereof is connected to interlock with the operation of the diaphragm 6.

In addition, the fuel nozzle (1) has an automatic operation means for stopping the fueling stroke at the completion of fueling, while the fueling stroke can be continuously made without a person holding and pulling the lever (3) during the fueling It is provided.

The automatic operation means has a variety of structures, but briefly described one of them as follows, as follows.

The automatic operation means forms an air inlet hole 11 so as to detect air at the end of the spout 10 of the nozzle body (2). That is, the air introduced through the air inlet hole 11 is transferred to the inside of the nozzle body 2 along the air transfer pipe 12 inside the spout 10, and some of the transferred air is the diaphragm 6. And the remainder is continuously introduced into the fuel tank 20 together with the oil.

Accordingly, by pulling the lever 3, the solenoid valve 5 opens the flow path and at the same time the oil flows into the fuel tank 20. In this process, some of the air introduced along the air transfer pipe 12 through the air inlet 11 is introduced into the diaphragm 6 and the other is introduced into the fuel tank 20 together with the oil.

When the surface level of the oil filled in the fuel tank 20 rises by the continuous oiling and exceeds the air inlet hole 11, the oil at this time closes the air inlet hole 11 to block the air inlet. When the air inflow is blocked in this way, the diaphragm 6 becomes a vacuum state and ascends in the axial direction, and pulls the end portion of the lever 3 upward, and the pulled state of the lever 3 is released. When the pull of the lever 3 is released, the solenoid valve 5 closes the flow path again to stop the oil supply.

That is, when the air inlet hole 11 is closed by the oil and the air inlet is blocked, the air in the diaphragm 6 is discharged together with the oil to be in a vacuum state, and the diaphragm 6 rises in the axial direction. While pulling the end of the lever 3, the pulled state of the lever 3 is automatically released and the automatic oiling operation is stopped.

On the other hand, the most widely used fuels for use as described above are roughly divided into two kinds of gasoline fuel and dazel fuel, and since these fuels should not be changed and refueled, the fuel inlet of a diesel vehicle is usually made larger than the fuel inlet of a gasoline vehicle. The fuel nozzle of the vehicle cannot enter the fuel inlet of the gasoline vehicle.

On the contrary, since the fuel injection nozzle 1 of the gasoline vehicle can enter the fuel injection port of the diesel vehicle, the gasoline injection nozzle is occasionally inserted into the diesel vehicle in which the fuel injection port is largely formed by mistake of the fuel supply source. From the small problem of having to throw out all the fuel, the problem of damaging the engine in diesel fuel tanks and engines is caused.

An object of the present invention for solving the above-mentioned problems is to prevent mixing of different fuels by preventing fuel injection when a spout of a gasoline fuel injection nozzle for gasoline fuel is inserted into a fuel inlet of a vehicle using diesel fuel, and a simple structure And it is to provide a nozzle for preventing oil mixing of the lubricator with a simple operation principle to reduce the manufacturing cost and to improve the safety even without abnormal operation and failure even when used for a long time.

The present invention for achieving the above object comprises a nozzle body connected to the hose of the lubricator and having a lever for controlling fuel supply, and a spout extending from the nozzle body and the air inlet hole for sensing the air at the end side In the nozzle of the lubricator, a slider is installed on the outer periphery of the spout to be elastically slidable to the spout, and inserted / installed inside the spout, one end is connected to the air inlet hole and the other end is And an air transfer pipe connected to the nozzle body to transfer the air introduced into the air inlet hole to the nozzle body, and opening and closing means for selectively opening and closing the inside of the air transfer pipe in response to the front and rear movements of the slider. It is done.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Repeated descriptions of the same parts as in the prior art are omitted.

FIG. 3 is a front view showing the mixing prevention nozzle according to the first embodiment of the present invention, FIG. 4 is a partial cross-sectional view showing a spout in the mixing prevention nozzle according to the first embodiment of the present invention, and FIG. 5 is the spout of FIG. 4. Is a partial cross-sectional view showing the state in which the slider is reversed.

As shown, the mixing prevention nozzle 100 of the lubricator according to the present invention is largely composed of the nozzle body 110, the spout 120, the slider 130, and the opening and closing means 140.

First, the nozzle body 110 is connected to the end of the hose 4 (conventional) of the lubricator is provided with a lever 111 for controlling the fuel supply. Accordingly, by pulling or releasing the lever 111, the solenoid valve (traditional) inside the nozzle body 110 is operated to open or close the flow path to control the oil supply.

In addition, the nozzle body 110 is provided with a number of parts such as a solenoid valve (5: conventional) and a diaphragm (6: conventional), so that in addition to the lever 111 to automatically oil the oil, such a nozzle body ( 110 is the same as the conventional structure described above, the detailed description thereof will be omitted.

The spout 120 extends from the nozzle body 110, and an air inlet hole 121 is formed at an end side of the spout 120 to detect air.

In addition, the outer periphery of the spout 120 is provided with an elastic member 170, the elastic member 170 is in close contact with the nozzle body 110 side. Here, the elastic member 170 is preferably a spring, in addition to this may be used a variety of materials having an elastic force.

The slider 130 is coupled to the outer circumference of the spout 120, and is elastically slidable by the elastic member 170.

That is, the elastic member 170 is installed in the direction of the nozzle body 110 from the spout 120, but one side is inserted into the slider 130 to be caught by the magnet member 131 to be described below.

In addition, an air transfer pipe 150 is installed inside the spout 120 to transfer the air introduced into the air inlet 121 to the nozzle body 110.

Here, one end of the air transfer pipe 150 is connected / coupled in communication with the air inlet hole 121, the other end is connected / coupled to the nozzle body (110).

Therefore, the nozzle body 110 controls the oiling operation by automatically operating the lever 111 according to whether the air introduced through the air inlet hole 121 is introduced.

That is, in the state where the air continues to flow through the air inlet hole 121, the oil is continuously supplied by maintaining the pulled state of the lever 111,

When the surface level of the oil filled in the fuel tank 20 (conventional) is increased by the continuous oiling, and the air inlet hole 121 is closed, the air inlet is blocked, and the pulled state of the lever 111 is automatically As it is released, the automatic refueling operation is stopped.

Since the description of the automatic oiling operation method of the nozzle body 110 is the same as the conventional one, a detailed description thereof will be omitted.

Then, the opening and closing means 140 for selectively opening and closing the interior of the air transfer pipe 150 in response to the front and rear movement of the slider 130 is installed.

The opening and closing means 140 has a magnet member 131 coupled to protrude at a specific position on the inner circumferential surface of the slider 130 and an expansion pipe 151 in the air transfer pipe 150 to form an expansion pipe 151 in the expansion pipe 151. It is installed so as to flow freely in the close proximity of the magnet member 131 consists of a ball 160 for closing the inside of the air transfer pipe 150 and opening the inside of the air transfer pipe 150 when spaced apart.

Here, the ball 160 is preferably made of a steel material so as to be affected by the magnetic force of the magnet member 131, and the ball 160 is formed larger than the inner diameter of the air transfer pipe 150 The expansion pipe 151 is preferably formed larger than the diameter of the ball 160.

On the other hand, the magnet member 131 preferably uses at least 1500 gauss or more to sufficiently suck the ball 160.

In addition, one side of the expansion pipe 151 is formed to be inclined. Therefore, when the magnet member 131 approaches the ball 160 side when the slider 130 is moved forward, the ball 160 is attracted by the magnetic force of the magnet member 131 and the inclined surface of the expansion pipe 151 is provided. Naturally sliding along 152 will be able to close the inside of the air transfer pipe 150. On the contrary, if the magnet member 131 is spaced apart from the ball 160 during the backward movement of the slider 130, the ball 160 is released from the influence of the magnetic force of the magnet member 131. As the free fall along the inclined surface 152 to open the air transfer pipe 150 again.

On the other hand, the air transfer pipe 150 is made of a synthetic resin material.

As such, when the magnet member 131 of the slider 130 approaches or is spaced toward the ball 160, the ball 160 closes the inside of the air transfer pipe 150 by the magnetic force of the magnet member 131. While opening, the oiling operation of the oiling nozzle 100 is automatically controlled.

In addition, a stopper 180 is coupled to the outer circumferential surface of the spout 120 so that the magnet member 131 may be caught, and the stopper 180 limits the forward position of the slider 130.

Here, the stopper 180 is installed close to one side of the expansion pipe 151 of the air transfer pipe 150 so that the magnet member 131 is caught in the stopper 180 to stop the ball 160 It can be sucked with sufficient magnetic force.

In addition, the stopper 180 is preferably made of a steel material. That is, when the magnet member 131 of the slider 130 is caught by the stopper 180, the magnet member 131 is in a state of being attracted to the stopper 180 by a constant magnetic force.

Therefore, the slider 130 can be retracted only when a predetermined external force is applied, so that the magnet member 131 is normally held by the stopper 180 while maintaining the ball 160. As a result, the air transfer pipe 150 is also normally maintained by the ball 160 in a closed state. Of course, the slider 130 is also subjected to the elastic force to always advance even by the elastic member 170 installed on the rear side.

Hereinafter, the operation of the mixing oil prevention nozzle 100 of the lubricator according to the first embodiment of the present invention is as follows.

Prior to the description, the mixing oil prevention nozzle 100 of the lubricator according to the present invention operates to enable fueling only for a vehicle using gasoline fuel as a gasoline vehicle, and when refueling in a diesel vehicle, it is not to be oiled.

In addition, the slider 130 is normally advanced by the elastic force of the elastic member 170 installed on the rear side to maintain the magnet member 131 is adsorbed to the stopper 180 and the ball 160 ) Is moved in the expansion pipe 151 by the suction force of the magnet member 131 to maintain the state of closing the inside of the air transfer pipe 150.

First, when fueling a gasoline vehicle having a small diameter of the fuel inlet, when the spout 120 is inserted into the fuel inlet, the spout 120 is inserted into the fuel inlet, but the slider 130 is larger than the fuel inlet. Due to the sliding movement to the rear side, the elastic member 170 is in a compressed state.

Therefore, as the slider 130 moves backward, the magnet member 131 is spaced apart from the ball 160 and the magnetic force sucking the ball 160 is released, thereby closing the air transport pipe 150. 160 is free to fall to the initial position in the expansion pipe 151 to open the air transfer pipe 150, and thus the fueling is possible, at this time, by pulling the lever 111 of the nozzle body 110 Will be made.

Of course, if the surface level of the oil to be filled in the fuel tank 20 (conventional) by the continuous oiling rises above the air inlet hole 121, the oil at this time closes the air inlet hole 121 to inlet air When the air inflow is blocked, the pulled state of the lever (conventional) is automatically released as described above, and when the pull of the lever (conventional) is released, the solenoid valve (conventional) is closed. Closing the flow path again stops fueling.

In addition, when oiling is completed and the spout 120 is withdrawn from the fuel inlet, the slider 130 is advanced again by the elastic restoring force of the elastic member 170 installed at the rear side. In this case, the magnet member 131 ) Advances until it stops at the stopper 180, and when the forward movement of the slider 130 is completed, the ball 160 causes the air transfer pipe 150 to be closed again by the magnetic force of the magnet member 131. do.

In the case of a diesel vehicle having a large diameter of the fuel injection hole, when the spout 120 is inserted into the fuel injection hole, not only the spout 120 but also the slider 130 are inserted into the fuel injection hole. Therefore, since the ball 160 sucked by the magnet member 131 of the slider 130 normally closes the air transfer pipe 150, fuel is not supplied.

On the other hand, the present invention does not occur abnormal operation and failure even when used for a long time by a simple operation principle to open and close the air transfer pipe 150 by the magnetic force of the magnet member 131.

Figure 6 is a partial cross-sectional view showing a state in which the air induction means installed in the expansion portion of the air conveying pipe in the mixing prevention nozzle according to the second embodiment of the present invention, Figure 7 is for mixing prevention according to the second embodiment of the present invention As a perspective view showing the air inducing means in the nozzle, only parts different from the above-described first embodiment will be described, and repeated description thereof will be omitted.

As shown, the second embodiment is the air flow direction so that the ball 160 is not affected by the air transported through the air transfer pipe 150 inside the expansion portion 151 of the air transfer pipe 150 Air inducing means 190 to guide is installed.

The air inducing means 190 is installed in close contact with the air inflow direction in the expansion pipe 151, the inside bypassing the air to be transported along the air transport pipe 150 to bypass the ball 160 192 is formed, and the receiving portion 193 for accommodating the ball 160 is formed of an induction block 191 having a curved surface on one side surface of the bypass 192.

In addition, an inlet 194 is formed on the receiving portion 193 of the induction block 191 to communicate with the detour 192 to allow air to be transferred along the detour 192 into the expansion pipe 151. It can be bypassed to the edge side.

Therefore, when refueling in a gasoline vehicle, when the spout 120 is inserted into the fuel inlet, the slider 130 is slidably moved to the rear side. At this time, the ball 160 of the magnet member 131 is sucked. When the magnetic force is released and the ball 160 is free, the ball 160 is positioned in the receiving portion 193 of the induction block 191.

Accordingly, when the oil is started by the operation of the lever 111, the air begins to be transferred to the nozzle body 110 through the air transfer pipe 150. At this time, the air conveys the inside of the expansion pipe 151. The bypass flows through the ball 160 while passing through the bypass 192 of the induction block 191.

As such, since air flows bypass the ball 160, the ball 160 has no influence. If the ball 160 is subjected to a lot of influence of the air to be transported, the ball 160 may move along the flow of air to close the inside of the air transport pipe 150.

In addition, in general, the spout 120 is inserted into the fuel inlet in a state inclined at a predetermined angle in the downward direction to supply oil, wherein the ball 160 may close the air transfer pipe 150 by its own weight. This may be prevented by the induction block 191 of the air induction means 190.

The present invention described above prevents fuel from being injected when a spout of a gasoline nozzle for gasoline fuel is inserted into a fuel inlet of a vehicle using diesel fuel, thereby preventing mixing of heterogeneous fuels and preventing the fuel tank and engine of a diesel vehicle. Breakage is also prevented.

In addition, since the ball is made of a simple structure and a simple operating principle of selectively opening and closing the air transfer pipe by the magnetic force of the magnet member during the front and rear movement of the slider, the manufacturing cost is reduced and abnormal operation and failure even during long time use Does not occur.

Further, by installing an air induction means inside the expansion pipe portion, the ball is not affected by the air flowing through the air transport pipe and at the same time prevents the possibility of closing the air transport pipe even by its own weight to further improve safety. do.

1 is a view showing a conventional oiling nozzle,

2 is a cross-sectional view showing a conventional oil nozzle;

3 is a front view showing a mixing prevention nozzle according to the first embodiment of the present invention,

4 is a partial cross-sectional view showing a spout in the mixing prevention nozzle according to the first embodiment of the present invention,

5 is a partial cross-sectional view showing a state in which the slider is reversed in the spout of FIG.

6 is a partial cross-sectional view showing a state in which the air induction means is installed inside the expansion pipe of the air conveying pipe in the mixing prevention nozzle according to the second embodiment of the present invention,

Figure 7 is a perspective view showing the air inducing means in the mixing prevention nozzle according to a second embodiment of the present invention.

<Code Description of Main Parts of Drawing>

100: nozzle 110: nozzle body

111: lever 120: spout

121: air inlet hole 130: slider

131: magnet member 140: opening and closing means

150: air transfer pipe 151: expansion pipe

152: slope 160: ball

170: elastic member 180: stopper

190: air induction means 191: induction block

192: bypass 193: receiver

194: incision

Claims (8)

The spout is connected to the hose of the lubricator and has a nozzle body 110 having a lever 111 for controlling fuel supply, and extending from the nozzle body 110 and having an air inlet hole 121 for sensing air at an end side thereof. In the nozzle of the lubricator comprising 120), A slider 130 installed on the outer circumference of the spout 120 to be elastically slidable to the spout 120; The spout 120 is inserted / installed inside the one end is connected to the air inlet hole 121 and the other end is connected to the nozzle body 110, the air introduced into the air inlet hole 121 to the nozzle body Air transfer pipe 150 and the transfer to (110), Opening and closing means 140 for selectively opening and closing the interior of the air transfer pipe 150 in response to the front and rear movement of the slider 130 Mixing prevention nozzle of the lubricator comprising a. The method of claim 1, The opening and closing means 140 is a magnet member 131 is coupled to protrude to a specific position on the inner peripheral surface of the slider 130, The expansion pipe 151 is formed in the air transport pipe 150 to be installed in the expansion pipe 151 and closes the air transport pipe 150 when the magnet member 131 is close, and opens the air transport pipe 150 when spaced apart. Mixing prevention nozzle of the lubricator, characterized in that consisting of a ball (160). The method of claim 2, Inside the expansion pipe 151 is characterized in that the ball 160 is provided with an air inducing means 190 to guide the air flow direction so as not to be affected by the air transported through the air transfer pipe 150 Oil mixing nozzle for lubricator. The method of claim 3, wherein The air inducing means 190 is installed in close contact with the air inflow direction in the expansion pipe 151, the detour 192 is formed therein to guide the air to be transported bypass the ball 160, The lower side of the bypass 192, the mixing nozzle of the lubricator, characterized in that made of an induction block (191) formed with a receiving portion (193) for receiving the ball (160). The method according to any one of claims 2 to 4, Stopper 180 is coupled to the outer circumferential surface of the spout 120 so that the stopper 180 is coupled to limit the forward position of the slider 130, characterized in that the oil mixture mixing nozzle. The method of claim 5, wherein One side of the expansion pipe 151 is a mixed oil prevention nozzle of the lubricator, characterized in that formed inclined. The method of claim 5, wherein The air transfer pipe 150 is mixed oil prevention nozzle of the lubricator, characterized in that the synthetic resin material. The method of claim 5, wherein The stopper 180 is mixed oil prevention nozzle of the lubricator, characterized in that made of steel.