JP2008285235A - Liquid feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid feeding device which is suitable for the feeding of, for example, an aqueous solution of an exhaust-gas cleanup reducer for a diesel engine, which can simply and easily provide a small amount of aqueous solution with man power, and which can be easily and inexpensively manufactured by a simple constitution. <P>SOLUTION: The liquid feeding device 48 can move and dispose a liquid 28 to be fed, above a liquid feeding opening 7 provided on the outer peripheral surface of a liquid storage tank 1. A supporting frame 51 is attached to a base frame 49 having a travel wheel 54. A loading shelf 52 capable of housing a vessel 46 with the stored liquid 28 is rotatably attached to be supporting frame 51. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is suitable, for example, when supplying an aqueous solution of a reducing agent for exhaust gas purification of a diesel engine. A small amount of an aqueous solution can be easily supplied by human power, and can be manufactured easily and inexpensively with a simple configuration. The present invention relates to a liquid supply apparatus.

  As a means for reducing NOx contained in exhaust gas from a diesel engine, a diesel vehicle is equipped with a NOx reduction catalyst constituting an exhaust gas purification device, a predetermined reducing agent is added to the NOx reduction catalyst, and the reducing agent is discharged into the exhaust gas. Some of them have a reduction reaction with NOx in them to reduce the NOx emission concentration.

  Among these, as a non-toxic urea is adopted as the reducing agent, a diesel vehicle is equipped with a NOx reduction catalyst that is an exhaust gas purification device, and an automatic compounding device that produces a reducing agent solution. A urea powder tank and a water tank, a stirring tank for storing and stirring these predetermined amounts, and a reducing agent solution tank for storing the prepared urea water and supplying the predetermined amount to the exhaust gas purification device are provided. .

  A predetermined amount of water is supplied from the water tank to the agitation tank, and a predetermined amount of urea powder is supplied from the urea powder tank to the agitation tank. Some are stored in a tank, and the urea water is pumped by a timely pump and injected into an exhaust gas purification device to reduce and purify NOx in exhaust gas discharged from the muffler (see, for example, Patent Document 1). .

  However, since the automatic compounding device has a stirring tank, a water tank, and a urea powder tank, the weight is increased, the structure of the vehicle is complicated, and the installation space is required. While it absorbs moisture and hardens, it becomes difficult to control the amount of addition. On the other hand, during long-distance operation, there is a risk of operation without the addition of a reducing agent. There were problems such as preparation and complicated replenishment work.

  In order to solve the above problem, a liquid level sensor and a concentration sensor are provided in the reducing agent solution tank, a control device is provided that can output an alarm activation signal when a liquid level or concentration below a predetermined level is detected, and the alarm signal is reduced. In some cases, urea water is prepared in a timely manner to encourage replenishment (see, for example, Patent Document 2).

  However, this conventional device requires a liquid level sensor, a concentration sensor, an alarm device, and a control device for controlling the operation thereof, and the configuration becomes complicated and expensive. It is practically difficult to manufacture, and for that purpose, it takes a large amount of urea powder and water and installation space for it, and the vehicle becomes large in weight and the mounted urea powder absorbs moisture. The problem was that it was hardened and it was difficult to ensure a stable exhaust gas purification effect.

  For this reason, the applicant is suitable for exhaust gas purification of diesel engines, and can produce an aqueous reducing agent solution such as urea water at a predetermined concentration inexpensively and promptly without causing problems in the construction and installation of diesel vehicles. Developed an aqueous solution preparation system for exhaust gas reductant that can be easily supplied to a diesel vehicle, is small and lightweight, can be used easily, and can be manufactured at low cost. is doing.

  That is, this already developed exhaust gas purifying reducing agent aqueous solution preparation apparatus dissolves granular or powdered exhaust gas purifying reducing agent in water to produce a reducing agent aqueous solution having a predetermined concentration, and An aqueous solution preparation tank to be stored; and an agitation device capable of dissolving the reducing agent in water and stirring the aqueous solution preparation tank, wherein the aqueous solution preparation tank is separated from the vehicle to be supplied with the aqueous solution. The tank can be moved or installed at a fixed position, and the aqueous solution can be supplied to the outside through the stirring device.

  However, the aqueous solution preparation apparatus can easily prepare the reducing agent aqueous solution, and is small and lightweight and suitable for a small amount of users. There was a need for an improved device that could be more or less ready.

JP 2002-370016 A JP 2002-371831 A

  The present invention solves such problems and is suitable for supplying an aqueous solution of a reducing agent for exhaust gas purification of a diesel engine, for example, and can easily supply a small amount of an aqueous solution by human power, and is easy and inexpensive with a simple configuration. It is an object of the present invention to provide a liquid supply device that can be manufactured.

  According to the first aspect of the present invention, in the liquid supply apparatus capable of moving and arranging the supply liquid above the liquid supply port provided on the outer peripheral surface of the liquid storage tank, a support frame is attached to the base frame provided with the traveling wheels, A mounting shelf capable of storing the container storing the supply liquid is rotatably attached to the support frame, and the container storing the supply liquid can be easily transported to a predetermined position. By tilting, the internal supply liquid can be easily supplied to the liquid storage tank by human power.

According to a second aspect of the present invention, a liquid supply hose is detachably attached to the container, the tip of the hose can be inserted into the liquid supply port, and the liquid supply hose can be inserted into the shelf. The supply liquid in the container can be reliably and easily supplied to the storage tank, the supply hose can be inserted into the hose case, the supply hose is stabilized, and the hose case has a bottom. By doing so, it is possible to prevent the dripping from the liquid supply hose.
According to a third aspect of the present invention, a traveling wheel is attached to one end of the base frame, and the other end is provided so as to be able to land on the ground so as to be movable or stationary, and the liquid supply device can be moved and stopped with a simple configuration. Trying to get.

According to a fourth aspect of the present invention, the support frame is provided so as to be extendable and retractable, the height position of the mounting shelf can be adjusted, and the liquid supply to the liquid storage tanks of various sizes can be met.
According to the invention of claim 5, the height of the mounting shelf can be adjusted to be higher than the height of the tank cap detachably attached to the liquid supply port, and the mounting shelf can be moved and arranged above the liquid supply port. Thus, the supply liquid stored in the container can be easily supplied to the liquid storage tank.

According to a sixth aspect of the present invention, a belt that can be passed over the peripheral surface of the container is attached to the mounting shelf, so that the container is prevented from slipping and can be transported safely.
Therefore, for example, if the belt is formed in a Y shape, the anti-slip action of the container can be improved, and the prevention of the container from slipping can be enhanced.
According to the seventh aspect of the present invention, the supply liquid in the container can be supplied to the storage tank on the supply side via the liquid supply hose, and transfer of the supply liquid from the container to the liquid storage tank is not required. The supply liquid can be supplied easily and quickly.

In the invention of claim 8, the tip of the liquid supply hose can be inserted into the outer side of the other end of the joint pipe connected at one end to the tank cap, and the other end of the joint pipe can be removed without removing the tank cap. A liquid supply hose is inserted into the outer portion of the container so that the supply liquid stored in the container can be easily supplied to the liquid storage tank.
According to a ninth aspect of the present invention, the supply liquid is an aqueous solution of a reducing agent for exhaust gas purification of a diesel engine, and the aqueous solution can be easily supplied to a liquid storage tank by human power.
According to a tenth aspect of the present invention, the aqueous solution is urea water, which is suitable for supplying urea water that is safe and frequently used.

  In the first aspect of the present invention, a support frame is attached to a base frame provided with traveling wheels, and a mounting shelf that can accommodate a container storing the supply liquid is rotatably attached to the support frame. The stored container can be easily transported to a predetermined position, and by rotating the mounting shelf and tilting the container, the internal supply liquid can be easily supplied to the liquid storage tank by human power.

In the invention of claim 2, a liquid supply hose is detachably attached to the container, the tip of the hose can be inserted into the liquid supply port, and a liquid supply hose can be inserted into the mounting shelf. Since the hose holder is provided, the supply liquid in the container can be reliably and easily supplied to the storage tank, and the liquid supply hose can be inserted into the hose holder to stabilize the liquid supply hose. By making the bottom, it is possible to prevent the back of the liquid supply hose.
According to the third aspect of the present invention, the traveling wheel is attached to one end of the base frame, and the other end is provided on the ground so as to be movable or stationary. Therefore, the liquid supply device can be moved and stopped with a simple configuration. Can be realized.

According to the invention of claim 4, since the support frame is provided so as to be extendable and adjustable, and the height position of the mounting shelf can be adjusted, there is an effect corresponding to the liquid supply to the liquid storage tanks of various sizes.
In the invention of claim 5, since the height of the mounting shelf can be adjusted to be higher than the height of the tank cap detachably attached to the liquid supply port, the mounting shelf is moved above the liquid supply port and The supply liquid stored in the container can be easily supplied to the storage tank.

In the invention of claim 6, since the belt that can be hung around the peripheral surface of the container is attached to the mounting shelf, the container can be prevented from slipping and transported safely.
Therefore, for example, if the belt is formed in a Y shape, the anti-slip action of the container can be improved, and the prevention of the container from slipping can be enhanced.
According to the seventh aspect of the present invention, since the supply liquid in the container can be supplied to the storage tank on the supply side via the liquid supply hose, it is not necessary to transfer the supply liquid from the container to the liquid storage tank. The supply liquid can be supplied easily and quickly.

In the invention of claim 8, since the tip end portion of the liquid supply hose can be inserted into the outer side of the other end of the joint pipe having one end connected to the tank cap, the other end of the joint pipe can be removed without removing the tank cap. A liquid supply hose can be inserted into the outer portion of the container, and the supply liquid stored in the container can be easily supplied to the liquid storage tank.
In the invention of claim 9, since the supply liquid is an aqueous solution of a reducing agent for exhaust gas purification of a diesel engine, the aqueous solution can be easily supplied to a liquid storage tank by human power.
In the invention of claim 10, since the aqueous solution is urea water, there is an effect suitable for supplying urea water that is safe and frequently used.

  Hereinafter, a storage tank for urea water that is an aqueous solution of a reducing agent for exhaust gas purification of a diesel engine using the present invention will be described. In FIGS. 1 to 8, 1 is a transparent or translucent storage tank made of synthetic resin. Thus, it is formed in a substantially rectangular parallelepiped shape capable of accommodating about 1000 liters of urea water, and a large number of concave portions or concave ribs 2 for reinforcing rigidity are formed on the peripheral surface thereof.

The liquid storage tank 1 is placed on, for example, a pedestal 3 for forklift conveyance, and is always stably installed at an appropriate place such as a fueling base, a truck station, or a factory.
In the figure, reference numeral 4 denotes a protective net attached around the tank 1, which is constructed by assembling a protective frame 5 vertically and horizontally, and the lower end of the protective frame 5 is fixed to the gantry 3. Reference numerals 6 denote a pair of fork insertion holes opened on the peripheral surface of the mount 3.

  A liquid supply port 7 is provided at the upper center of the liquid storage tank 1, and a tank cap 9 is screwed into a screw portion 8 at the opening edge of the liquid supply port 7. A screw hole 10 is formed at the center of the tank cap 9, and a base end portion of an elbow-shaped pipe joint 11 is screwed into the screw hole 10, and one end thereof projects into the tank cap 9.

  In the figure, reference numeral 12 denotes a stopper ring mounted on a mounting pipe circumferential surface, which will be described later, of the pipe joint 11. The ring 12 is disposed so as to be able to engage with the inner projecting edge 13 of the screw hole 10. We are trying to stabilize. Reference numeral 14 denotes an outer protruding edge of the threaded hole 10 pipe joint 11, and 15 denotes a mounting pipe fixed to the distal end portion of the pipe joint 11. The outer protruding edge 14 engages with the concave annular guide 15 a and is arranged. 11 and the tank cap 9 are supported stably.

  A screw portion 16 is formed on the peripheral surface of the other end of the pipe joint 11, and a screw hole 18 of the lever coupling 17 is screwed into the screw portion 16 and connected thereto. A connecting pipe 19 protrudes from the lever coupling 17 so that one end of a liquid supply pipe 20 such as a tank car (not shown) capable of supplying a large amount of urea water can be connected to the pipe 19.

In the figure, 21 is a dust-proof coupling that can be fitted to the connecting pipe 19, one end of the pipe is closed, and is connected to the connecting pipe 19 when the pipe joint 11 is not used, that is, when urea water is not supplied, It is possible to prevent foreign matters from entering the pipe joint 11.
A pulling lever 22 is rotatably connected to the peripheral surface of the dust-proof coupling 21, and a grip portion 23 is provided at the tip of the lever 22. Reference numeral 24 denotes a chain in which the lever coupling 17 and the dustproof coupling 21 are connected.

  An air escape pipe 25 is provided on the proximal end side of the pipe joint 11, and the pipe 25 is connected to a substantially U-shaped air collecting part 26 and one pipe end part of the collecting part 26. The U-shaped exhaust part 27 is immersed in a urea solution 28 that is a supply liquid in which a majority of the air collecting part 26 is accommodated in the liquid storage tank 1, and the other end of the pipe is connected to the U-shaped exhaust part 27. The urea solution 28 in the liquid supply port 7 is disposed so as to protrude from the liquid surface.

One end of the exhaust part 27 is disposed so as to protrude outside the pipe joint 11, the pipe end part is opened to the atmosphere, and a netted cap 29 is attached to the pipe end part to prevent foreign matter from entering. In the figure, reference numeral 30 denotes a check valve provided at an appropriate position of the exhaust part 27, which can prevent backflow of air from the outside.

  A liquid supply pump 31 is provided at a position spaced apart from the pipe joint 11 on the liquid storage tank 1, the pumping pipe 32 is immersed in the urea water 28, and one end of the liquid supply conduit 33 is connected to the outside of the liquid storage tank 1. A liquid supply gun nozzle 34 is attached to the other end.

  In addition, a fitting 35 is attached at a position away from the pipe joint 11 on the liquid storage tank 1, and a plurality of nuts 37 are screwed into the screw shaft 36. An upper end portion of a synthetic resin float stopper 38 having a substantially U-shaped cross section is sandwiched between the nuts 37 and 37, and a synthetic resin hollow cylindrical float 39 is disposed at the lower end portion thereof so as to be engageable. is doing.

  The lower end of the float stopper 38 is installed at approximately 3/4 of the height of the liquid storage tank 1, and when the urea water 28 is supplied at approximately 3/4 of the volume of the liquid storage tank 1, a float gauge described later is used. The liquid level display can be started.

A rod-like float gauge 40 made of a synthetic resin protrudes from the float 39, and the gauge 40 is slidably fitted to a transparent synthetic resin gauge pipe 41 that passes through the fitting 35 and stands upright. .
In the situation of FIG. 8 in which the gauge tube 41 is provided with a scale (not shown), a cap 42 is attached to the upper end thereof, and the upper end of the float gauge 40 moves to the upper portion of the gauge tube 41. It is possible to display a full tank state in which about 28 liters of water 28 is accommodated.
In addition, in the figure, 43 is a drain pipe provided in the lower part of the liquid storage tank 1 and can be opened and closed via a drain cock 44, and 45 is a power supply cord of the liquid supply pump 31.

  The liquid storage tank 1 configured as described above is formed in a large-capacity rectangular parallelepiped shape and placed on the gantry 3 and the periphery thereof is protected by a protective net 4 to prevent damage due to external force. It is configured so that it can be transported as appropriate, and is always installed at an appropriate place such as a refueling base, a truck station, or a factory.

  A tank cap 9 is plugged in the upper center of the liquid storage tank 1, a pipe joint 11 is attached to the cap 9, a lever coupling 17 is connected to the joint 11, and a dustproof coupling 21 is connected to the coupling 17. In addition, the closed end portion of the coupling 21 prevents foreign matter from entering from the outside.

  On the other hand, an air escape pipe 25 is provided on the base side of the pipe joint 11, its air collection part 26 is provided in the liquid storage tank 1, a part of the exhaust part 27 protrudes outside, and its end part is exposed to the atmosphere. It is open and a mesh cap 29 is attached to the end of the tube to prevent foreign matter from entering.

Further, a liquid supply pump 31 is installed at a position separated from the tank cap 9 above the liquid storage tank 1, and a liquid supply gun nozzle 34 is attached to the pump 31 via a liquid supply conduit 33.
A gauge pipe 41 protrudes from the tank cap 9 at the upper part of the liquid storage tank 1, a float gauge 40 is slidably inserted in the pipe 41, and a float 39 is connected to the lower end of the gauge 40. Yes. The float 39 engages with the lower end of the float stopper 38 before it is supplied with the urea water 28 or is below a predetermined liquid level and is stationary.

Next, when supplying a large amount of urea water 28 from a tank car (not shown) or the like to the liquid storage tank 1, the tank car is stopped near the liquid storage tank 1, the dust-proof coupling 21 is removed, and the lever is The connecting pipe 19 of the coupling 17 is exposed.
Then, one end of the liquid supply pipe 20 of the tank car is connected to the connection pipe 19, and the pipe end of the liquid supply pipe 20 is connected by a coupling (not shown) on the tank car side to drive the pressure pump of the tank car. Then, the ready-made urea water 28 is sent out to the liquid supply pipe 20.
As described above, since the liquid storage tank 1 uses the ready-made urea water 28, there is no need to prepare urea water in the tank as in the conventional case, and the homogeneous urea water 28 is quickly supplied to the diesel vehicle. Can do.

The urea water 28 is guided to the liquid supply pipe 20, moves from the lever coupling 17 to the pipe joint 11, and flows down into the liquid storage tank 1. At that time, the liquid level in the liquid storage tank 1 can be easily visually recognized from the outside since the liquid storage tank 1 is made of a transparent or translucent member.
When a predetermined amount of urea water 28 is supplied into the liquid storage tank 1, the liquid level reaches the lower end of the float stopper 38 as shown in FIG. 7, and the float 39 floats and moves together with the liquid level change. The float gauge 40 moves up in the gauge tube 41.

  Then, when the upper end of the float gauge 40 has moved to the upper end of the gauge pipe 41 as shown in FIG. 8, it is visually confirmed that the urea water 28 has become substantially full, and the driving of the pumping pump is stopped to stop urea. The supply of water 28 is stopped.

At that time, as the liquid level of the urea water 28 in the liquid storage tank 1 rises, the air in the liquid storage tank 1 is pushed upward, and the air is one of the air collecting portions 26 opened to the upper part of the tank 1. This is moved to the other side, guided to the exhaust part 27, and pushed out into the atmosphere from one of the exhaust parts 27 protruding outside.
Therefore, the residual air in the liquid storage tank 1 is removed, and the urea water 28 is smoothly supplied into the liquid storage tank 1. Thereafter, when the liquid supply pump 31 is driven to supply the urea water 28 to the vehicle, the supply water is supplied. An air compression accident of the liquid pump 31 is prevented in advance.

  Thus, when the urea water 28 is supplied to the liquid storage tank 1 in a full tank state, the coupling on the tank truck side is removed, the liquid supply pipe 20 is removed, and then the dustproof coupling 21 is connected to the lever coupling 17.

Next, when supplying the urea water 28 supplied to the liquid storage tank 1 to the diesel vehicle, the liquid supply pump 31 is driven, the urea water 28 is pumped up by the pumping pipe 32, and this is supplied from the liquid supply conduit 33 to the liquid supply gun nozzle. Lead to 34. Before and after this, the supply gun nozzle 34 is inserted into the filling port of a urea water storage tank (not shown) mounted on the diesel vehicle on the supply side, and the nozzle trigger is operated to open the urea water 28. Is supplied to the urea water storage tank.
In this case, since the inside of the liquid storage tank 1 communicates with the atmosphere via the exhaust part 27, the urea water 28 is smoothly guided to the liquid supply gun nozzle 34 and moves to the urea water storage tank (not shown).

When the urea water 28 is supplied to the diesel vehicle in this way, the liquid level of the urea water 28 in the liquid storage tank 1 is lowered, the float 39 moves in conjunction with this, and the float gauge 40 moves downward, and its upper end is the gauge. Move down in the tube 41.
Accordingly, the operator can know the current supply capacity for the diesel vehicle by visually recognizing the current lowered position from the upper end position of the float gauge 40 at the beginning of the supply of the urea water 28.
In this case, if a liquid supply gun nozzle having a flow meter is used instead of the liquid supply gun nozzle 34, the supply capacity to the diesel vehicle can be accurately known.

9 to 14 show an embodiment of a liquid supply apparatus to which the present invention is applied, and the same reference numerals are used for portions corresponding to the above-described configuration.
9 to 11 show a first embodiment of the present invention. In this embodiment, instead of supplying the urea water 28 to the storage tank 1 by a tanker vehicle, a relatively small amount of the urea water 28 is supplied. This is applied when supplying the liquid storage tank 1 manually.

For this reason, a required amount of a commercially available box-shaped container (packing box) 46 is purchased. The container 46 has a mounting hole (not shown) such as a screw hole or a through-hole at one end, and the container 46 is provided in the mounting hole. An attached required length of the oil supply hose 47 can be attached, and a required amount of urea water 28 is accommodated in the container 46.
In the first embodiment, the container 46 is configured as an inner / outer double structure, the outside is made of corrugated paper, the inside is made of synthetic resin, and can be reused, and about 20 to 30 liters of urea water 28 is placed inside the container 46. The container 46 can be transported by a carriage 48 which is a liquid supply device.

The carriage 48 includes a pair of left and right base frames 49 each having a substantially inverted U shape, a support column 50 erected on the base frame 49, and a substantially inverted U-shaped support frame that is slidably fitted to the support column 50. 51 and a mounting shelf 52 that is rotatably mounted between the support frames 51 and 51.
The base frame 49 is connected by a reinforcing frame 53, and a traveling wheel 54 is rotatably attached to one end of the base frame 49, and the other end can be landed on the ground 55. And it can be stationary.

The support column 50 is connected by a reinforcing frame 56, and the lower end portion of the support frame 51 is slidably fitted to the upper end portion of the support column 50 so that the support frame 51 can be expanded and contracted. A desired expansion / contraction displacement or height can be fixed by the lock knob 57.
The mounting shelf 52 is rotatably supported by the support frame 51 via a support shaft 58. The mounting shelf 52 is formed in a substantially U-shaped cross section, and an oil supply hose 47 is inserted into one end thereof. A possible sheath-like hose case 59 is provided.

In the figure, 60 is a substantially U-shaped handle provided at the other end of the mounting shelf 52, 61 is a belt having one end attached to both the front and rear ends of the mounting shelf 52, and spans the peripheral surface of the container 46. This can be held by the stopper 64.
Reference numeral 62 denotes a lock handle provided coaxially with the support shaft 58, and 63 denotes a stopper protruding from the outer surface of the mounting shelf 52, which can be engaged with the support frame 51 and placed at the engaging position. The shelf 52 can be supported horizontally.

In the first embodiment, the carriage 48 is placed around the storage location of the liquid storage tank 1 or the urea water-containing container 46, and the carriage 48 is moved to the storage location of the container 46.
In this movement, the front end portion of the support frame 51 is gripped, rotated forward and downward about the traveling wheel 54, the other end of the base frame 49 is pulled away from the ground 55, and the support frame 51 is pushed and moved. 54 is performed on the ground 55. When the carriage 48 is moved to the storage location, the other end of the base frame 49 is landed on the ground 55, and the support frame 51 is erected to stand still.

  Next, the lock knob 57 is operated to adjust the length or height of the support frame 51 to adjust the height of the mounting shelf 52 to be higher than the height of the tank cap 9 of the liquid storage tank 1, and the adjustment position is adjusted. Fix with the lock knob 57. Thereafter, the container 46 containing urea water is loaded on the mounting shelf 52, the belt 61 is hung around the outer surface of the container 46, and the container 46 is held by tensioning the belt 61 with the stopper 64.

In this way, when the container 46 is loaded on the mounting shelf 52, the carriage 48 is moved to the periphery of the liquid storage tank 1 in the manner described above, and the support frame 51 is erected to stand still.
Then, the liquid supply hose 47 attached to the container 46 is taken out, and the base end portion of the hose 47 is connected to an attachment hole (not shown) of the container 46. This situation is as shown in FIGS.

On the other hand, after the carriage 48 arrives, the tank cap 9 of the liquid storage tank 1 is removed, and the cap 9, the air escape pipe 25, the lever coupling 19 and the dustproof coupling 21 are removed together, and the liquid supply port 7 Open the top.
Therefore, after holding the liquid supply hose 47 and inserting the tip of the liquid supply hose 47 into the liquid supply port 7, the lock handle 62 is operated to rotate the mounting shelf 52 downward about the spindle 58 while holding the handle 60. Then, the container 46 is moved and tilted. This situation is as shown in FIG.

  As a result, the urea water 28 in the container 46 is guided to the liquid supply hose 47 and flows into the liquid storage tank 1. At this time, since the mounting shelf 52 is pivotably placed, the rotation angle is gradually increased while holding the handle 60, and the inclination angle of the container 46 is gradually increased, so that the total amount of urea water 28 in the container 46 is increased. Can be supplied to the storage tank 1.

After supplying the urea water 28 in the container 46 to the liquid storage tank 1 in this way, the support frame 51 is tilted, and the carriage 58 is moved from the liquid storage tank 1 in the manner described above. Then, the stopper 64 is detached and the belt 61 is removed, and the empty container 46 is taken out from the mounting shelf 52 and stored in an appropriate position to prepare for refilling the urea water 28 and reusing the container 46.
Thereafter, when the urea water 28 in the liquid storage tank 1 is supplied to the diesel vehicle on the supply side, the same procedure as described above is performed.

In this case, when the urea water 28 remains in the container 46 without using the whole amount of the urea water 28, the tip of the liquid supply hose 47 is inserted into the hose case 59, and the carriage 58 is moved to an appropriate position to stand upright. The mounting shelf 52 is supported horizontally, and the container 46 is placed on the shelf 52.
By doing in this way, the residual urea water 28 in the container 46 can be supplied to the liquid storage tank 1 promptly and timely.

  In the above-described embodiment, the tank cap 9 is removed and the liquid supply hose 47 is inserted into the liquid supply port 7 to supply the urea water 28. However, the tank cap 9 is not removed and the tip of the lever coupling 19 is removed. It is also possible to supply the urea water 28 by inserting the liquid supply hose 47.

  12 to 14 show a second embodiment of the present invention. In this embodiment, the hose case 59 in the above-described embodiment is formed with a bottom, and this is formed on one side of the front end or the rear end of the mounting shelf 52. The liquid supply hose 47 is compactly and nicely inserted into the hose holder 59, and prevents dripping after the liquid supply.

  Further, the belt 61 is formed in a substantially Y shape and is stretched over the peripheral surface of the container 46 to increase the contact area with the container 46, so that the belt 61 is formed on the peripheral surface of the container 46 as in the first embodiment. Compared with the case where it is stretched in a straight line, the holding force of the container 46 is strengthened, and the sliding prevention is improved.

As described above, these embodiments are simple and inexpensive without using the urea solution 28 by using the container 46 that stores the required amount of the urea solution 28 and the carriage 48 that conveys the container 46. Depending on the facility, a required amount of urea water 28 can be supplied to the liquid storage tank 1 simply and easily.
Therefore, for example, as an emergency measure when it is difficult to quickly supply urea water by a tank car or the like, or a relatively small-capacity liquid storage tank 1 is installed for private use, and the urea water 28 is easily and easily added to the tank 1. It is suitable for supply.

  In the above-described embodiment, the supply liquid in the container 46 is once transferred to the liquid storage tank 1 and supplied from the liquid storage tank 1 to the storage tank on the supply side, but a small amount of supply liquid is supplied. In this case, it is also possible to insert the liquid supply hose 47 into the supply port of the storage tank on the vehicle side and supply the supply liquid in the container 46 directly to the storage tank. The supply liquid can be supplied easily and quickly.

  As described above, the liquid supply apparatus of the present invention can supply a small amount of an aqueous solution easily by human power, and can be manufactured easily and inexpensively with a simple configuration. For example, a reducing agent for exhaust gas purification of a diesel engine. It is suitable when supplying an aqueous solution of

It is a front view which shows the storage tank of urea water which is the aqueous solution of the reducing agent for exhaust gas purification of the diesel engine using this invention. It is a top view of FIG. It is a left view of FIG. It is a front view which expands and shows the principal part of the installation condition of the feed pump applied to the liquid storage tank of FIG. FIG. 5 is a left side view of FIG. 4.

FIG. 2 is an enlarged cross-sectional view illustrating a tank cap applied to the liquid storage tank of FIG. 1, an air escape pipe, a lever coupling, and a dustproof coupling. FIG. 2 is an enlarged cross-sectional view showing a liquid level display mechanism applied to the liquid storage tank of FIG. 1, showing the installation status of a float, a float gauge, a float stopper, a gauge tube, and a full state of urea water. FIG. 2 is an enlarged cross-sectional view showing a liquid level display mechanism applied to the liquid storage tank of FIG. 1, showing the installation status of a float, a float gauge, a float stopper, a gauge tube, and a consumption state of a predetermined amount of urea water.

In the front showing an embodiment of a liquid supply apparatus to which the present invention is applied, an example of supplying a container storing a predetermined amount of urea water, which is an aqueous solution of a reducing agent for exhaust gas purification of a diesel engine, to a liquid storage tank is shown. The state which loaded the said container on the mounting shelf is shown. FIG. 10 is a right side view of FIG. 9. It is a side view which shows the principal part of the condition which rotates the mounting shelf and tilts the container and supplies urea water inside the container to the liquid storage tank.

In the front which shows the 2nd Embodiment of this invention, an example which supplies the container which stored the predetermined amount of urea water which is the aqueous solution of the reducing agent for exhaust gas purification of a diesel engine to a liquid storage tank is shown, The said container is shown. It shows the situation of loading on the mounting shelf. FIG. 13 is a plan view of FIG. 12. In 2nd Embodiment of FIG. 12, it is a perspective view which shows the principal part of the condition which has spanned and hold | maintained the Y-shaped belt around the surrounding surface of the container accommodated in the mounting shelf.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid storage tank 7 Liquid supply port 9 Tank cap 11 Pipe joint 25 Air escape pipe 26 Air collection part 27 Exhaust part 28 Supply liquid (urea water)

46 Container 47 Liquid supply hose 48 Liquid supply device (cart)
49 Base frame 51 Support frame 52 Mounting shelf 54 Traveling wheel 55 Ground 59 Hose holder 61 Belt

Claims (10)

  In a liquid supply apparatus capable of moving and arranging a supply liquid above a liquid supply port provided on an outer peripheral surface of a liquid storage tank, a support frame is attached to a base frame provided with a traveling wheel, and the supply liquid is attached to the support frame. A liquid supply apparatus, wherein a mounting shelf capable of storing a container stored therein is rotatably attached.   The liquid supply hose is detachably attached to the container, and a hose case in which the liquid supply hose can be inserted into the mounting shelf is provided while the tip of the hose can be inserted into the liquid supply port. Liquid supply device.   The liquid supply apparatus according to claim 1, wherein a traveling wheel is attached to one end of the base frame, and the other end is provided so as to be able to land on the ground so as to be movable or stationary.   The liquid supply apparatus according to claim 1, wherein the support frame is provided so as to be extendable and adjustable, and the height position of the mounting shelf can be adjusted.   The liquid supply apparatus according to claim 4, wherein the height of the mounting shelf can be adjusted to be higher than a height of a tank cap detachably attached to the liquid supply port.   The liquid supply apparatus according to claim 1, wherein a belt that can be wound around the peripheral surface of the container is attached to the mounting shelf.   The liquid supply apparatus according to claim 2, wherein the supply liquid in the container can be supplied to the storage tank on the supply side via the liquid supply hose.   6. The liquid supply apparatus according to claim 2, wherein the tip of the liquid supply hose can be inserted into an outer portion of the other end of the joint pipe having one end connected to the tank cap.   The liquid supply apparatus according to claim 1, wherein the supply liquid is an aqueous solution of a reducing agent for exhaust gas purification of a diesel engine. The liquid supply apparatus according to claim 9, wherein the aqueous solution is urea water.

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