CN215626757U - Urea filling device - Google Patents

Abstract

The utility model belongs to the technical field of automobile exhaust treatment, and discloses a urea filling device which comprises a funnel, a telescopic pipe, a guide pipe, an exhaust pipe, a mounting part and a stop part, wherein the length and the angle of the telescopic pipe can be adjusted according to filling requirements, and the telescopic pipe can keep the direction unchanged for a long time after being adjusted so as to fill urea; the funnel is designed into a horn shape, so that the urea water solution poured into the funnel can be fully rotated in the funnel when flowing, and the urea water solution can quickly enter the telescopic pipe through the narrow opening of the funnel; when urea is filled into the urea tank, air in the urea tank is exhausted through the exhaust pipe so as to be filled quickly; the urea filling device can be connected with the urea tank through a mounting part and is kept relatively fixed; the stop part can block the installed part and move towards the direction of keeping away from the flexible pipe to prevent that the installed part from coming off from the pipe, in addition, this stop part can also prevent when filling urea that urea spills from the filler, has played certain sealed effect.

Description

Urea filling device

Technical Field

The utility model relates to the technical field of automobile exhaust treatment, in particular to a urea filling device.

Background

As the ministry of environmental protection promulgates six legislations on pollutants for heavy duty diesel vehicles, more stringent limits on pollutants were set forth. In the six stages of the state, the main flow of the diesel vehicle adopts a DOC + DPF + SCR + ASC post-treatment device to reduce the emission. The urea solution is used for carrying out chemical reaction treatment on the nitrogen oxides in the tail gas of the diesel engine, so that the content of the nitrogen oxides can be effectively reduced, and the exhaust pollutants of the diesel engine can meet the emission requirements of the national six and above.

When the urea is insufficient, the urea solution is supplemented by manual filling, when the urea is added into the urea box by the filling pipe in the prior art, the air in the urea box cannot be well discharged to increase the filling time when the urea solution is added due to the fact that the pipe diameter of the liquid outlet of the filling pipe is small and the like, and the urea is easily spilled due to the fact that the bottom of the urea box cannot be fixed; in addition, the filling position of the urea tank is fixed and cannot rotate, even a person is required to hold the urea pipe to place the urea pipe at a position convenient for filling, so that the labor cost is increased, and the filling difficulty is increased because the filled urea aqueous solution cannot be accurately ensured to enter the tank due to artificial shaking factors.

Therefore, it is highly desirable to design a urea filling device to add urea to the urea tank.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a urea filling device for filling urea into a urea tank.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a urea filling device, comprising:

the device comprises a funnel, a water tank and a water tank, wherein the funnel is in a horn shape, and one end of a flared opening of the funnel is used for temporarily storing urea;

one end of the telescopic pipe is hermetically connected with the thin opening of the funnel so as to communicate the telescopic pipe with the funnel;

one end of the guide pipe is connected with the other end of the telescopic pipe in a sealing way, and the other end of the guide pipe can be inserted into a filling opening of the urea tank;

the exhaust pipe is arranged on the guide pipe, an air inlet of the exhaust pipe is positioned at one end of the guide pipe, which is far away from the telescopic pipe, and an air outlet of the exhaust pipe is positioned at one end of the guide pipe, which is close to the telescopic pipe;

the mounting piece is sleeved on the guide pipe and the exhaust pipe, threads are arranged on the mounting piece, and the mounting piece can be in threaded connection with the filling port; and

the stop piece is arranged on the guide pipe and can stop the mounting piece from moving towards the direction far away from the telescopic pipe.

Preferably, an exhaust groove is formed in an outer wall of the duct, the exhaust groove extends in an axial direction of the duct, and the exhaust pipe is accommodated in the exhaust groove.

Preferably, the air outlet of the exhaust pipe is bent toward a radial direction of the duct.

Preferably, the air inlet of the exhaust pipe is flush with the end of the conduit remote from the telescopic pipe.

Preferably, the mounting member is a nut.

Preferably, the stop member is a circular boss having a diameter smaller than an inner diameter of the nut.

Preferably, the boss has a diameter identical to a diameter of the filler neck.

Preferably, the urea filling device is made of iron alloy.

Preferably, the telescopic pipe is connected with the funnel in a welding mode.

Preferably, the telescopic pipe is a spring steel pipe.

The utility model has the beneficial effects that:

the urea filling device provided by the utility model comprises a funnel, an extension pipe, a guide pipe, an exhaust pipe, an installation part and a stop part, wherein the funnel is horn-shaped, and one end of a flaring of the funnel is used for temporarily storing urea; one end of the extension tube is hermetically connected with the narrow opening of the funnel so as to enable the extension tube to be communicated with the funnel, the length and the angle of the extension tube can be adjusted according to the filling requirement, and the direction can be kept unchanged for a long time after the adjustment is finished so as to facilitate the filling of urea; the funnel is designed into a horn shape, so that the urea water solution poured into the funnel can be fully rotated in the funnel when flowing, and the urea water solution can quickly enter the telescopic pipe through the narrow opening of the funnel; one end of the guide pipe is hermetically connected with the other end of the telescopic pipe, and the other end of the guide pipe can be inserted into a filling port of the urea tank; the exhaust pipe is arranged on the guide pipe, an air inlet of the exhaust pipe and one end of the guide pipe, which is far away from the telescopic pipe, are arranged, and an air outlet of the exhaust pipe is arranged at one end of the guide pipe, which is close to the telescopic pipe; the installation part is sleeved on the guide pipe and the exhaust pipe, threads are arranged on the installation part, and the installation part can be in threaded connection with the filling port so that the urea filling device is connected with the urea tank and keeps relatively fixed; the stop part is arranged on the guide pipe, and the stop part can stop the installation part from moving towards the direction far away from the telescopic pipe so as to prevent the installation part from falling off from the guide pipe.

Drawings

FIG. 1 is a schematic diagram of a urea dosing apparatus according to the present invention;

figure 2 is a schematic view of the mounting, catheter and stopper proposed by the present invention.

In the figure:

1. a funnel; 2. a telescopic pipe; 3. a mounting member; 4. a conduit; 5. an exhaust pipe; 6. a stop member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The present embodiment provides a urea filling device, as shown in fig. 1 and fig. 2, the urea filling device includes a funnel 1, an extension tube 2, a conduit 4, an exhaust pipe 5, a mounting member 3, and a stop member 6, the funnel 1 is in a horn shape, and one end of a flared opening of the funnel 1 is used for temporarily storing urea; one end of the extension tube 2 is hermetically connected with the thin opening of the funnel 1 so as to enable the extension tube 2 to be communicated with the funnel 1, the length and the angle of the extension tube 2 can be adjusted according to the filling requirement, and the direction can be kept unchanged for a long time after the adjustment is finished so as to fill urea; the funnel 1 is designed into a horn shape, so that the urea water solution poured into the funnel 1 can flow through the funnel 1 and rotate sufficiently in the funnel 1, and the urea water solution can rapidly enter the telescopic pipe 2 through the narrow opening of the funnel 1; one end of the guide pipe 4 is hermetically connected with the other end of the telescopic pipe 2, and the other end of the guide pipe 4 can be inserted into a filling port of the urea tank; the exhaust pipe 5 is arranged on the guide pipe 4, an air inlet of the exhaust pipe 5 and one end of the guide pipe 4 far away from the telescopic pipe 2 are arranged, an air outlet of the exhaust pipe 5 is arranged at one end of the guide pipe 4 close to the telescopic pipe 2, and when urea is filled into the urea tank, air in the urea tank is exhausted through the exhaust pipe 5 so as to be filled quickly; the mounting piece 3 is sleeved on the guide pipe 4 and the exhaust pipe 5, threads are arranged on the mounting piece 3, and the mounting piece 3 can be in threaded connection with the filling port so that the urea filling device is connected with the urea tank and keeps relatively fixed; the stop part 6 is arranged on the guide pipe 4, the stop part 6 can stop the mounting part 3 from moving towards the direction far away from the telescopic pipe 2 so as to prevent the mounting part 3 from falling off from the guide pipe 4, and in addition, the stop part 6 can also prevent urea from spilling out of a filling opening when the urea is filled, so that a certain sealing effect is realized.

For convenience of appearance, in the present embodiment, an exhaust groove is provided on the outer wall of the duct 4, the exhaust groove extends in the axial direction of the duct 4, and the exhaust pipe 5 can be accommodated in the exhaust groove, so that the exhaust pipe 5 and the duct 4 are integrated.

Preferably, the air inlet of the exhaust pipe 5 is flush with the end of the guide pipe 4 far away from the telescopic pipe 2, and the diameter of the air inlet of the exhaust pipe 5 is smaller than that of the liquid outlet of the guide pipe 4, so that the design not only meets the exhaust requirement of the urea tank, but also is convenient for filling urea.

When the exhaust groove and the exhaust pipe 5 on the outer wall of the conduit 4 are prepared, the raw material of the conduit 4 can be rolled out of the exhaust groove on a roller press; and welding a metal sheet made of the same metal material as the guide pipe 4 on the exhaust groove, wherein the metal sheet has the same radian as the guide pipe 4 so as to be integrated with the guide pipe 4, and the metal sheet and the exhaust groove form an exhaust pipe 5.

In addition, when the urea is stained on the liquid discharge port of the conduit 4 and is scattered on the ground after the urea tank is pulled out, certain pollution is caused to the environment, and in addition, the liquid discharge port of the conduit 4 is provided with an anti-staining design or an anti-backflow design, so that the urea in the conduit 4 can completely flow into the urea tank; when the guide pipe 4 is pulled out of the urea tank opening, the guide pipe should be slowly pulled out to wait for the urea on the guide pipe 4 to flow into or drop into the urea tank.

In order to prevent the urea from entering the exhaust pipe 5 from the air inlet of the exhaust pipe 5, the air outlet of the exhaust pipe 5 is bent toward the radial direction of the conduit 4, and the bending angle is 90 degrees, so that the urea can be prevented from entering the exhaust pipe 5 from the air inlet of the exhaust pipe 5, and the urea in the conduit 4 can be better guided to the urea tank.

When preparing the air outlet of the exhaust pipe 5, a 90-degree elbow with a thin wall can be used, and the air inlet of the elbow and the air outlet of the exhaust pipe 5 are sealed and welded.

In order to reduce the cost, the mounting member 3 in this embodiment is a nut which can be fitted over the guide tube 4 through a through hole formed therein and can be connected to a threaded portion formed on the filling port of the urea tank through a thread formed on the inner wall thereof.

Preferably, the stop member 6 is a circular boss, it being conceivable that the diameter of the boss is smaller than the inner diameter of the nut, so that the stop member 6 is received in the nut.

In the embodiment, the extension tube 2 is connected with the funnel 1 by welding; the circular boss is made of a circular steel sheet or a circular stainless steel sheet, the circular boss is sleeved on the guide pipe 4 through a through hole on the circular boss, and then the circular boss is welded on the guide pipe 4 by using a welding machine.

In order to prevent urea from spilling out of the filling opening during filling, the diameter of the boss is set to be the same as that of the filling opening in the embodiment, the boss is placed at the position flush with the filling opening of the urea tank before filling, and the nut is screwed on the filling opening to realize sealing connection between the nut and the filling opening, so that urea is prevented from spilling out.

Alternatively, the nut may be a standard component, thereby reducing costs.

In other embodiments, the stop member 6 may also adopt other structures, for example, the stop member 6 adopts a plurality of stop levers, the plurality of stop levers are arranged along the circumference of the conduit 4, and the stop levers extend along the radial direction of the conduit 4, compared with the former, the stop member 6 adopting a plurality of stop levers has simpler structure, is very convenient for manufacturing and processing, has lower cost, but the structure cannot play a role in sealing the urea tank opening.

Preferably, the urea filling device in this embodiment is made of iron alloy; optionally, the telescopic pipe 2 is made of a spring steel pipe, in order to facilitate the welding connection of the telescopic pipe 2 with the funnel 1 and the guide pipe 4, the funnel 1 and the guide pipe 4 are both formed by bending and welding steel plates, the telescopic pipe 2, the funnel 1 and the guide pipe 4 are made of steel materials, so that the welding is very convenient, and certainly, the stop part 6 also adopts a circular steel sheet made of steel materials.

A contain certain water composition for in the urea, the urea filling device that adopts the steel material to make can take place certain corrosion after using a period unavoidably, when the corrosion to certain degree, the rust slag can drop from urea filling device, when filling urea, the rust slag will flow into the urea jar along with urea, the rust slag that gets into the urea jar can block the liquid outlet of urea jar, in the long run, the liquid outlet of urea jar will constantly reduce, the urea pump on the car will be overwhelmed, thereby lead to the damage of urea pump, the normal use of car has been influenced, certain influence has been caused to driver and transport company, influence to the environment is bigger. Therefore, in order to solve the problem of corrosion of the urea filling device, the funnel 1, the extension tube 2, the guide tube 4 and the stop piece 6 of the urea filling device are all made of stainless steel materials, and the urea filling device made of the stainless steel materials cannot be corroded due to water in urea or improper storage of a user, so that the service life of the urea filling device is greatly prolonged.

The urea filling device manufactured by using the iron alloy is relatively heavy due to the high density of the iron alloy material, so that the urea filling device is quite inconvenient to use; however, the aluminum alloy material has high welding difficulty, so that the cost and the sale price are high; in addition, because the material of aluminium alloy material is softer than steel material, when the user puts the urea filling device that adopts aluminium alloy to make on the car, because jolt in the way, urea filling device can be difficult to avoid taking place the deformation, leads to its unable normal use even.

Since the funnel 1 is a thin-walled large-diameter workpiece, the funnel 1 of the urea filling device made of aluminum alloy is most likely to deform, and for this reason, the funnel 1 can be made of a high-strength composite material, and parts such as the extension tube 2 and the guide tube 4 are also made of a metal material; when the urea filling device is assembled, the thin opening of the funnel 1 can be inserted into the inlet of the extension tube 2, and the thin opening of the funnel 1 and the inlet of the extension tube 2 are sealed by using a hoop. Of course, all the parts of the urea injection device may be manufactured using a high-strength composite material.

In order to avoid the waste of urea, the inner walls of the funnel 1, the telescopic pipe 2 and the guide pipe 4 of the urea filling device can be subjected to hydrophobic coating treatment, urea on the surfaces of the funnel 1, the telescopic pipe 2 and the guide pipe 4 subjected to the coating treatment often cannot remain, small water drops are formed on the surfaces of the urea, only slight vibration is needed, and the small water drops slide off from the surfaces of the urea and form water flow and finally flow into a urea tank, so that the waste of urea is greatly avoided.

When the funnel 1 made of metal materials is prepared, a fan-shaped metal sheet can be adopted to be formed on a rolling machine in a rolling way, and finally, a welding machine is used for welding the interface; or directly rolling a circular metal sheet on a rolling machine to form the funnel 1; when preparing the funnel 1 made of the high-strength composite material, the funnel 1 is often integrally formed by pouring or injection molding.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A urea dosing device, comprising:

the urea storage hopper comprises a hopper (1), wherein the hopper (1) is horn-shaped, and one end of a flaring of the hopper (1) is used for temporarily storing urea;

one end of the telescopic pipe (2) is hermetically connected with the thin opening of the funnel (1) so as to enable the telescopic pipe (2) to be communicated with the funnel (1);

one end of the guide pipe (4) is connected with the other end of the telescopic pipe (2) in a sealing mode, and the other end of the guide pipe (4) can be inserted into a filling opening of the urea tank;

the exhaust pipe (5) is arranged on the guide pipe (4), an air inlet of the exhaust pipe (5) is positioned at one end, far away from the telescopic pipe (2), of the guide pipe (4), and an air outlet of the exhaust pipe (5) is positioned at one end, close to the telescopic pipe (2), of the guide pipe (4);

the mounting piece (3) is sleeved on the guide pipe (4) and the exhaust pipe (5), threads are arranged on the mounting piece (3), and the mounting piece (3) can be in threaded connection with the filling port; and

a stop (6) disposed on the conduit (4), the stop (6) capable of blocking movement of the mounting (3) in a direction away from the telescoping tube (2).

2. Urea dosing device according to claim 1, characterized in that the outer wall of the conduit (4) is provided with an exhaust groove extending in the axial direction of the conduit (4), in which exhaust groove the exhaust pipe (5) can be received.

3. Urea filling device according to claim 1, characterized in that the outlet opening of the exhaust pipe (5) is bent towards the radial direction of the conduit (4).

4. Urea filling device according to claim 1, characterized in that the air inlet of the exhaust pipe (5) is flush with the end of the conduit (4) remote from the telescopic tube (2).

5. Urea dosing device according to claim 1, characterized in that the mounting (3) is a screw cap.

6. Urea filling device according to claim 5, characterized in that the stop (6) is a circular boss with a diameter smaller than the inner diameter of the screw cap.

7. A urea dosing device according to claim 6, characterized in that the diameter of said boss is the same as the diameter of said dosing port.

8. Urea dosing device according to any of the claims 1-7, characterized in that the urea dosing device is made of a ferro-alloy.

9. Urea filling device according to claim 8, characterized in that the telescopic tube (2) is welded to the funnel (1).

10. Urea filling device according to claim 8, characterized in that the telescopic tube (2) is a spring steel tube.

Images