KR100652862B1 - Tank lorry's valve control system - Google Patents

Abstract

The present invention relates to a valve opening and closing device for a tank lorry, in a tank lorry in which an opening and an oil supply valve, a mouthpiece, and an air compressor are installed in a storage tank, the first opening / closing valve connected to the mouthpiece and lifting operation is connected to one side thereof. An automatic switching device comprising a second opening / closing valve which is lifted by the air pressure introduced from the first opening / closing valve; A main opening and closing device configured to be opened and closed by an air pressure of the second opening and closing valve, and a switching member which is lifted and linked with the opening and closing opening to supply and block air introduced from the air compressor to the oil supply valve; A manual switch connected to the air compressor and manually lifting the second opening / closing valve by air pressure; A load opening / closing device connected to the air compressor, the third opening / closing valve selectively controlling air inflow to the second opening / closing valve of the automatic opening / closing device, and an operation switch controlling an operation of the third opening / closing valve; It is made, including.

Tank lorry, loading, air, lifting, valve

Description

Valve opening and closing device for tank lorry {TANK LORRY'S VALVE CONTROL SYSTEM}

1 is a diagram of the prior art.

Figure 2 is a block diagram showing an embodiment of loading the load by opening the oil supply valve in the valve opening and closing device for tank lorry according to the present invention.

Figure 3 is a block diagram showing a state in which the oil supply valve is blocked in the valve opening and closing device for tank lorry according to the present invention.

Figure 4 is a block diagram showing an embodiment for opening and unloading the oil supply valve in the valve opening and closing device for tank lorry according to the present invention.

5 is a configuration diagram showing an embodiment of manually shutting off the oil supply valve in the valve opening and closing device for tank lorry according to the present invention.

6A and 6B are perspective views of the switching member in FIGS. 2 and 3.

<Explanation of symbols for main parts of the drawings>

10: first open / close valve 12; Outer body

14 spring 16: plunger

20: second open and close valve 30: third open and close valve

40: case 42; Opening and closing

44: switching member 48: inlet pipe

49: outlet pipe 50: manual switch

60: operation switch 71 to 75: first to fifth supply pipe

81 to 85: first to fifth discharge pipes B; Automatic switchgear

M: Main switchgear T: Unloading switchgear

The present invention relates to a valve opening and closing device for a tank lorry, and more particularly, it is possible to automatically open and close the oil supply valve when loading or unloading a load in a storage tank mounted in the tank lorry, thereby unmanning loading and unloading operations, and also safety. It relates to a valve opening and closing device for a tank lorry so that it can be secured.

In general, a tank lorry means a freight car equipped with a storage tank to carry a large amount of oil or chemicals (hereinafter referred to as a load).

Attached Figure 1 shows an example of the tank lorry, looking at this,

The tank lorry for transporting the load divides the inside of the mounted storage tank 1 'into a plurality of partitions 2' according to the related laws, and each of the openings 3 is formed in the internal space of the partitioned storage tank 1 '. ') Is formed, the upper portion of the storage tank (1') is formed with a mouth (4 ') for sensing the maximum loading capacity, and the oil supply valve (6') is formed on the bottom surface of each internal space to supply the oil supply pipe ( 5 ') is provided to receive a load, and each of the oil supply valve (6') is opened and closed by air pressure in accordance with the operation of a plurality of the corresponding control switch (7 ') formed on the upper portion of the storage tank (1'), In the upper portion of the storage tank 1 ', a vent pipe 8' communicates with each of the internal spaces, and a plurality of vent valves 9a ', 9b' are formed in the vent pipe 8 '.

In the general tank lorry as described above, looking at the supply process of the load, the driver climbs to the top of the tank lorry to operate the whole or part of the control switch (7 ') by the air pressure of the air compressor (not shown), the corresponding oil supply valve (6') By injecting the load by injecting the load, but at this time to open the vent valve (9a ', 9b') so that the load can be injected smoothly by exhausting the internal air of the storage tank (1 '), the vent valve (9a', 9b ') is formed at the final end of the vent pipe 8' and opens and closes in the hearth, and a plurality of auxiliary valves 9b ', which are formed in each of the inner spaces, are opened and closed at the top of the tank lorry. Open all).

Then, at the upper part of the tank lorry, the driver opens the cover of the opening 3 'and visually confirms that the load formed in the internal space is injected, but when the maximum load is reached and the mouth 4' rises, the control switch 7 ' ) To close the oil supply valve 6 'and close the cover of the opening 3' to finish loading the respective internal spaces.

However, in the case of the general tank lorry as described above, regardless of whether or not there is a meter on the supply facility (not shown) supplying the load in loading the load, the driver climbs directly on the upper part of the tank lorry to open the cover of each opening, and Visually confirming that the load is supplied to the formed gauge bar, and then operating the control switch and vent valve is inconvenient, and there is a risk of explosion and fire when loading flammable substances such as oil. In the case of chemicals, vaporized chemicals are released into the atmosphere, causing environmental pollution, and workers are exposed to toxic substances. On the other hand, the gauge bar displays only the maximum loading capacity. There was this.

The present invention has been made to solve the above-mentioned problems of the prior art, it is possible to open and close the oil supply valve in conjunction with the operation of the mouth when loading the load in the tank lorry, the driver does not need to wait in the tank lorry between operations unmanned It is an object of the present invention to provide a valve opening and closing device for a tank lorry.

The present invention to achieve the above object,

In a tank lorry having an opening, a lubrication valve, a float, and an air compressor installed in the storage tank, the first opening / closing valve having an air compressor connected to one side and one side of the first opening / closing valve connected to an air compressor, An automatic opening and closing device composed of a second opening and closing valve lifted by; A main opening and closing device configured to open and close by lifting and lowering by the air pressure of the second opening and closing valve, and a switching member which is lifted and linked with the opening and closing opening to supply or block air introduced from the air compressor to the oil supply valve; A manual switch connected to the air compressor and manually lifting the second opening / closing valve by air pressure; A load opening / closing device connected to the air compressor, the third opening / closing valve selectively controlling air inflow to the second opening / closing valve of the automatic opening / closing device, and an operation switch controlling an operation of the third opening / closing valve; Characterized in that comprises a.

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

2 is a block diagram showing an embodiment of loading the load by opening the oil supply valve in the valve opening and closing device for tank lorry according to the present invention.

Referring to this, the opening and closing device (A) of the tank lorry according to the present invention, an opening is installed in the upper portion of the storage tank (1), the oil supply valve (6) is installed in the lower portion, the upper opening 100 is vertical To be installed, the outer one side is installed in the tank lorry the air compressor 200 is installed.

That is, the present invention, the first opening and closing valve 10 and the first opening and closing the interlocking operation is linked to the buckle 100 is installed vertically on the upper portion of the storage tank 1, the air compressor 200 is connected to one side An automatic opening / closing device (B) comprising a second opening / closing valve (20) which is lifted and lowered by the air pressure introduced from the valve (10); It is composed of the opening and closing port 42 which is elevated by the air pressure of the second opening and closing valve 20 and the switching member 44 which is raised and lowered in conjunction with the opening and closing port 42, the air flowing from the air compressor 200 A main opening / closing device (M) for supplying or interrupting the oil supply valve (6); A manual switch (50) connected to the air compressor (200) and manually lifting the second opening / closing valve (20) by air pressure; A third open / close valve 30 connected to the air compressor 200 and selectively control air inflow to the second open / close valve 20 of the automatic opening / closing device B, and the third open / close valve 30. The opening and closing device for loading and unloading (T) consisting of a control switch 60 for controlling the operation of the;

The first opening and closing valve 10 of the automatic opening and closing device (B),

An outer cylinder 12 connected to the air compressor 200 through the first supply pipe 71 provided at one side, and connected to the second open / close valve 20 via the first discharge pipe 81 provided at the other side; A spring 14 inserted into the outer cylinder 12; A plunger 16 inserted into the outer cylinder 12 and elastically supported by the spring 14 and having a passage 160 formed therein and connected to a vertical rod 162 of the float 100; do.

Here, the first supply pipe 71 and the first discharge pipe 81 installed in the outer cylinder 12 is connected to the opposite position, the passage 160 of the plunger 16 is the first supply pipe 71 And it is formed in a straight line to connect the first discharge pipe (81).

The second opening and closing valve 20 of the automatic opening and closing device (B),

The first discharge pipe 81 of the first opening and closing valve 10 is connected to the lower portion, the second supply pipe 72 is connected to one side of the third opening and closing valve 30 to be described later, the other main opening and closing device The second discharge pipe 82 is connected to the (M), the structure is the same as the above-described first opening and closing valve 10, detailed description thereof will be omitted.

The main opening and closing device (M),

One side is connected to the inlet pipe 48 is connected to the air compressor 200, the other side is connected to the outlet pipe 49 is connected to the oil supply valve 6, the other side is the case 40 is formed with a drain pipe 446 )Wow;

An opening and closing port 42 inserted into the case 40 and being elevated by the air pressure of the second opening / closing valve 20 and having a protrusion formed at a lower portion thereof;

Ascending and descending in conjunction with the opening and closing port 42, there is a lower passage 444 for connecting the inlet pipe 48 and the outlet pipe 49, and connects the outlet pipe 49 and the drain pipe 446 An upper passage 442 and a switching member 44 having a protrusion corresponding to the protrusion at an upper portion thereof;

And a spring 46 interposed in the case 40 to elastically support the switching member 44.

Here, referring to FIGS. 6A and 6B attached to the switching member 44, the lower passage 444 of the switching member 44 is in a position communicating with the inlet pipe 48 and the outlet pipe 49. When placed, it is possible to open the oil supply valve 6 by the air flowing from the air compressor 200, it is possible to inject or discharge the load through the oil inlet not shown (see Fig. 2 and 6a). .

Conversely, if the upper passage 442 of the switching member 44 is placed in the position to communicate with the outlet pipe 49 and the drain pipe 446, the air filled in the outlet pipe 49 through the drain pipe 446 The oil supply valve 6 is closed by being discharged to the outside (see FIGS. 3 and 6B).

The manual switch 50 is for the driver to manually control the amount of load flowing into the storage tank (1).

That is, one side is connected to the air compressor 200 through a predetermined third supply pipe 73, and the other side is connected to the second opening and closing valve 20 through the third discharge pipe 83, the first discharge pipe 81 It is connected to, the other side and the outer cylinder 52 in which a predetermined drain pipe 51 is formed at a lower position than the third supply pipe (73); A spring 54 inserted into the outer cylinder 52; An upper passage 560 for communicating the third supply pipe 73 and the third discharge pipe 83 and a lower passage 562 for communicating the third discharge pipe 83 and the drain pipe 51 are formed therein. , The button is formed in the upper portion is composed of a plunger 56 is inserted into the outer cylinder 52 and elastically supported.

Accordingly, when the plunger 56 is pressed down, the upper passage 560, the third supply pipe 73, and the third discharge pipe 83 communicate with each other so that air is injected into the second opening / closing valve 20. When the plunger 26 is raised and the plunger 26 is raised to its original state, the air filled in the third discharge pipe 83 is discharged through the lower passage 562 and the drain pipe 51 to prepare. Will be placed in.

The unloading opening and closing device (T) is for bringing out the load loaded in the storage tank (1) to the outside to reach the destination, the air inlet to the second opening and closing valve 20 of the automatic opening and closing device (B) It consists of a third open and close valve 30 to selectively control the operation switch 60 for controlling the operation of the third open and close valve (30).

The third opening and closing valve 30,

It is connected to the air compressor 200 through the fourth supply pipe 74 connected to one side, and is connected to the second opening and closing valve 20 through the second supply pipe 72 connected to the other side, the fourth supply pipe 74 A predetermined drain tube 38 is formed at a lower position than the outer tube 32, and an outer cylinder 32 having a fifth discharge tube 85 connected to the operation switch 60 to be described later at the bottom thereof; A spring (34) inserted into the outer cylinder (32); An upper passage 362 connecting the fourth supply pipe 74 and the second supply pipe 72 and a lower passage 364 connecting the second supply pipe 72 and the drain pipe 38 are formed therein. Launcher 36;

Here, the fourth supply pipe 74 and the second supply pipe 72 installed in the outer cylinder 32 is connected to the opposite position, the upper passage 362 of the plunger 32 is the fourth supply pipe ( 74 is formed in a straight line to connect the second supply pipe (72).

In addition, the drain pipe 38 installed in the outer cylinder 32 is installed at a position lower than the fourth supply pipe 74 described above, and the lower passage 364 of the plunger 32 is the second supply pipe 72. ) And the drain pipe 38 is formed to be bent.

In addition, the operation switch 60,

A fifth discharge pipe (85) connected to the third open / close valve (30) is installed at one side, and an outer cylinder (62) connected to the air compressor (200) by a predetermined fifth supply pipe (75); A spring 64 inserted into the outer cylinder 62; An upper passage 662 inserted into the outer cylinder 62 to communicate the fifth supply pipe 75 and the fifth discharge pipe 85 with a lower portion communicating the fifth discharge pipe 85 and the drain pipe 61. It consists of a plunger 66 in which a passage 664 is formed.

Here, the upper and lower passages 662 and 664 of the plunger 66 have the same shape as the above-described manual switch 50 and play the same role, and thus redundant description thereof will be omitted.

Referring to the installation and operation of the present invention configured as described above are as follows.

The first opening and closing valve 10 of the automatic opening and closing device (B) is installed on the upper portion of the storage tank 1 so that the plunger 16 therein is connected to the vertical rod 162 of the mouth 100. , Is connected to the air compressor 200 by the first supply pipe (71).

In addition, one side of the storage tank 1 is provided with the main opening and closing device (M) described above, is connected to the air compressor 200 by a predetermined inlet pipe (48), the oil supply valve (by the outlet pipe 49) ( 6) is connected.

Here, the oil supply valve 6 has a structure in which a disc (not shown) is opened when air is supplied and the disc is closed when the air supply is stopped. This is a well-known technique, and thus a detailed description thereof will be omitted.

The second opening and closing valve 20 is connected to the main opening and closing device (M) by the second discharge pipe 82, and is connected to the third opening and closing valve 30 by the second supply pipe (72), installed below It is connected to the first opening and closing valve 10 by a first discharge pipe (81).

In addition, a third discharge pipe 83 is connected to the middle of the first discharge pipe 81, a manual switch 50 is installed in the third discharge pipe 83, and the manual switch 50 is a third supply pipe 73. It is connected to the air compressor 200 by the).

A fourth supply pipe 74 is installed at the other side of the third open / close valve 30 connected to the second supply pipe 72, and the fourth supply pipe 74 is connected to the air compressor 200.

The fifth discharge pipe 85 is connected to the lower portion of the third open / close valve 30, and the fifth discharge pipe 85 is connected to the operation switch 60, and is installed at the other side of the operation switch 60. The fifth supply pipe 75 is connected to the air compressor 200.

After the installation of the opening and closing device (A) of the tank lorry according to the present invention is completed, when the air compressor 200 is operated, as shown in FIG. 2, air is introduced through the inlet pipe 48 and the main opening and closing device ( M) flows into the outlet pipe 49 and then supplied to the oil supply valve 6, so that the fuel supply valve 6 is opened so that the load can be injected into the storage tank 1.

At this time, since the switching member 44 of the main opening and closing device M is raised by the elasticity of the spring 46, the lower passage 444 coincides with the inflow pipe 48 and the outflow pipe 49. Through the air movement is possible.

In addition, since the first and second open and close valves 10 and 20, the manual switch 50, and the operation switch 60 are closed, and the third open and close valve 30 is open, the fourth supply pipe 74 may be closed. Inflowed air remains in the second supply pipe (72) while passing through the third open / close valve (30).

Thereafter, when the load rises and the float 100 rises, as shown in FIG. 3, the plunger 16 of the first opening / closing valve 10 rises, and the first supply pipe is opened by the passage 160 therein. The 71 and the first discharge pipe 81 pass through, and the air of the air compressor 200 passes through the first opening / closing valve 10 and flows into the second opening / closing valve 20.

As a result, the plunger 26 of the second opening / closing valve 20 is raised to allow the second supply pipe 72 and the second discharge pipe 82 to pass through the passage 260 therein to allow air to flow through the second passage. Passing through the on-off valve 20 flows into the main opening and closing device (M).

Therefore, since the opening and closing port 42 of the main opening and closing device M is lowered by the air pressure, and the switching member 44 is lowered in conjunction with the opening and closing device 42, the outlet pipe 49 and the outlet pipe 49 are formed by the upper passage 442 therein. As the drain pipe 446 is matched, the air filled in the outflow pipe 49 is discharged through the drain pipe 446, which causes the oil supply valve 6 to be closed, thereby completing the loading operation of the load.

Then, an embodiment when unloading the load in the storage tank 1 at the destination is shown in FIG. 4.

Referring to this, when the driver presses the operation switch 60, the air is supplied to the third opening / closing valve 30 because the fifth supply pipe 75 and the fifth discharge pipe 85 coincide by the upper passage 662 therein. Flows into the plunger 36 and the lower passage 364 and the second supply pipe 72 coincide with each other so that the air filled in the second supply pipe 72 is discharged through the drain pipe 38. do.

Accordingly, since all the air filled in the main opening and closing device M is discharged, the opening and closing port 42 of the main opening and closing device M is raised by the spring force of the spring 46, and as shown in FIG. Since the oil supply valve 6 is switched to the open state, the load can be unloaded.

On the other hand, Figure 5 is a diagram showing an embodiment of loading the appropriate amount of load by manual operation.

Referring to this, when the load is first injected into the storage tank 1 in the state shown in FIG. 2 and the desired amount is reached, the driver presses the manual switch 50 and the third supply pipe 73 and the third discharge pipe 83. When the air flows into the second opening / closing valve 20 to open the second opening / closing valve 20 to supply air to the main opening / closing device M, the switching member 44 descends as described above. As a result, the air supply through the inlet pipe 48 is blocked and at the same time the air in the outlet pipe 49 is discharged through the drain pipe 446, thereby closing the oil supply valve 6 and blocking the injection of the load.

At this time, the first opening and closing valve 10 is in a closed state because the buoy 100 is not raised.

Thereafter, when the manual switch 50 is released, the plunger 56 rises due to the repulsive force of the spring 54 so that the lower passage 562 and the third discharge pipe 83 communicate with each other. Air filled in the discharge pipe 83 is discharged through the drain pipe 51, and the manual switch 50 is in a ready state.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

As described above, according to the valve opening and closing device for a tank lorry of the present invention, in loading the load in the tank lorry, it is possible to automatically shut off the oil supply valve at the same time as the loading completion, and also to open the oil supply valve automatically to discharge the load The advantage is that the operator can be unmanned without having to wait in the tank lorry between operations.

In addition, it is possible to load a small amount of load in the storage tank provides an advantage of easy operation.

Claims (6)

In the tank lorry in which the opening, the oil supply valve, the mouth, and the air compressor are installed in the storage tank, An automatic opening and closing device interlocked with the buckle and configured to include a first opening / closing valve having an air compressor connected to one side thereof, and a second opening / closing valve lifted by air pressure introduced from the first opening / closing valve; A main opening and closing device configured to be opened and closed by an air pressure of the second opening and closing valve, and a switching member which is lifted and linked with the opening and closing opening to supply and block air introduced from the air compressor to the oil supply valve; A manual switch connected to the air compressor and manually lifting the second opening / closing valve by air pressure; A load opening / closing device connected to the air compressor, the third opening / closing valve selectively controlling air inflow to the second opening / closing valve of the automatic opening / closing device, and an operation switch controlling an operation of the third opening / closing valve; Valve opening and closing device for a tank lorry, characterized in that consisting of. The method of claim 1, The automatic opening and closing device, An outer cylinder connected to the air compressor via a first supply pipe provided at one side, and connected to a second opening / closing valve via a first discharge pipe provided at the other side, a spring inserted into the outer cylinder, and inserted into the outer cylinder to the spring; A first opening / closing valve elastically supported by a plunger having a passage formed therein and connected to a vertical rod of the ball; A first discharge pipe of the first open and close valve is connected to the lower side, and a second supply pipe connected to the third open and close valve is connected to one side, the outer cylinder body is connected to the second discharge pipe communicating with the main opening and closing device on the other side, the outer cylinder A second opening / closing valve comprising a spring inserted therein and a plunger inserted into the outer cylinder to be elastically supported by the spring and having a passage formed therein; Valve opening and closing device for a tank lorry, characterized in that consisting of. The method of claim 1, The main opening and closing device, An inlet tube connected to one side of the air compressor, an outlet tube connected to the oil supply valve, and a drain tube formed on the other side thereof; An opening and closing hole inserted into the case and having a protrusion formed at a lower portion thereof; Lifting in conjunction with the opening and closing, the inner passage and the lower passage connecting the inlet and outlet pipes, the upper passage is connected to the outlet pipe and the drain pipe is formed, the upper switching member formed with a protrusion corresponding to the protrusion Wow; A spring interposed in the case to elastically support the switching member; Valve opening and closing device for a tank lorry, characterized in that consisting of. The method of claim 1, The manual switch, One side is connected to the air compressor through a predetermined third supply pipe, the other side is connected to the first discharge pipe connected to the second opening and closing valve through the third discharge pipe, the other side is formed with a drain pipe; A spring inserted into the outer cylinder; An upper passage for communicating the third supply pipe and the third discharge pipe and a lower passage for communicating the third discharge pipe and the drain pipe are formed therein, and a button is formed at the top thereof to be inserted into the outer cylinder to be elastically supported. Plunger; Valve opening and closing device for a tank lorry, characterized in that consisting of. The method of claim 1, The third opening and closing valve, It is connected to the air compressor through the fourth supply pipe connected to one side, and connected to the second opening and closing valve through the second supply pipe connected to the other side, a predetermined drain pipe is formed on the other side, the fifth discharge pipe at the bottom An installed outer cylinder; A spring inserted into the outer cylinder; A plunger having an upper passage communicating the fourth supply pipe and the second supply pipe and a lower passage communicating the second supply pipe and the drain pipe; Valve opening and closing device for a tank lorry, characterized in that consisting of. The method of claim 1, The operation switch, A fifth discharge pipe connected to the third opening / closing valve is installed at one side, and an outer cylinder connected to the air compressor by a predetermined fifth supply pipe; A spring inserted into the outer cylinder; A plunger inserted into the outer cylinder and having an upper passage communicating with the fifth supply pipe and the fifth discharge pipe, and a lower passage communicating with the fifth discharge pipe and the drain pipe; Valve opening and closing device for a tank lorry, characterized in that consisting of.

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