CN216950528U - Filling end device and vehicle-mounted liquid storage tank thereof - Google Patents

Abstract

The utility model discloses a filling end device which comprises a filling end head and a drainage piece, wherein the drainage piece is arranged at the output end of the filling end head, the drainage piece is communicated with the filling end head, and the drainage piece is used for guiding a solution output by the filling end head to deviate from a sensor. The filling end device of the utility model can lead the output solution to deviate from the sensor. In addition, the utility model also discloses a vehicle-mounted liquid storage tank.

Description

Filling end device and vehicle-mounted liquid storage tank thereof

Technical Field

The utility model relates to the field of automobile parts, in particular to a filling end device and a vehicle-mounted liquid storage tank thereof.

Background

A urea tank is a container for storing a urea solution, which is mainly used in diesel-fueled trucks or buses. During operation, the urea solution in the urea box is sprayed to the exhaust pipe of the vehicle through the urea pump, so that nitrogen and oxygen in the tail gas are reduced into nitrogen and water, and nitrogen oxides in the waste gas are reduced.

In order to monitor whether the concentration of the urea solution in the urea tank can meet the specified emission requirement, a concentration quality sensor adopting an ultrasonic principle is generally installed in the urea tank, and the concentration quality sensor detects the concentration of the urea solution to obtain the quality of the urea solution. When the filling gun fills the urea solution into the urea tank, the urea solution can rotate at a high speed to generate a large amount of bubbles in the filling process of the filling equipment, and if the urea solution with the large amount of bubbles directly impacts the concentration quality sensor, the bubbles are easy to accumulate and adhere to the concentration quality sensor, so that the signal detection of the concentration quality sensor is interfered, and the detection signal is distorted.

Therefore, there is a need for a fill-end device and an on-board tank that avoids the impact of the solution on the sensor during filling of the solution to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a filling end device capable of guiding the flow direction of an output solution.

Another object of the present invention is to provide an on-board reservoir that avoids direct impact of the solution on the sensor during solution filling.

In order to achieve the purpose, the filling end device is suitable for being installed on a box body of a vehicle-mounted liquid storage box. The filling end device comprises a filling end head and a drainage piece, the drainage piece is installed at the output end of the filling end head, the drainage piece is communicated with the filling end head, and the drainage piece is used for guiding the solution output by the filling end head to deviate from the sensor.

Preferably, the drainage piece is a bent pipe, and the input end of the bent pipe is installed at the output end of the filling end.

Preferably, the output end of the bending pipe is offset from the sensor or aligned with the inner side wall of the box body.

Preferably, the filling end comprises a first filling main body, a movable connector and a magnetic filling piece, the first filling main body is mounted on the box body, the magnetic filling piece is sleeved in an inner cavity of the first filling main body, the movable connector is mounted at the tail end of the first filling main body, the movable connector is communicated with the magnetic filling piece, and an input end of the bent pipe is sleeved on the movable connector.

Preferably, the filling end head comprises a second filling main body and a connecting cylinder, the first end of the connecting cylinder is sleeved at one end of the second filling main body, the connecting cylinder is installed on the box body, and the input end of the bent pipe is in butt joint with the second end of the connecting cylinder.

Preferably, a filter screen is sleeved outside the bending pipe, and the filter screen at least has a part of structure surrounding the output end of the bending pipe.

Preferably, the drainage member is a drainage tube with a drainage surface structure in an inner cavity, the drainage tube is detachably mounted at the output end of the filling end, and the drainage surface structure drains the solution and outputs the solution, so that the output solution deviates from the sensor.

Preferably, the drainage surface structure is an inclined surface structure which is arranged obliquely, and the inclined surface structure is a smooth inclined surface structure or a textured inclined surface structure.

Preferably, at least part of the side surface of the flow guide pipe is provided with a filter screen structure.

In order to achieve another purpose, the vehicle-mounted liquid storage tank comprises a tank body with an inner cavity, the filling end device and a sensor mounted in the inner cavity of the tank body. The box body is provided with a filling port communicated with the inner cavity, the filling end is installed at the filling port, and the drainage piece is arranged in the inner cavity.

Compared with the prior art, the filling end device comprises a filling end head and a drainage piece, wherein the drainage piece is arranged at the output end of the filling end head, the drainage piece is communicated with the filling end head, and the drainage piece is used for guiding the solution output by the filling end head to deviate from a sensor.

Through the drainage of drainage piece, solution can not direct impact sensor or impact the liquid level near the sensor, avoids near the sensor to produce a large amount of bubbles, avoids the bubble to disturb the detection of sensor.

The vehicle-mounted liquid storage tank comprises a tank body with an inner cavity, the filling end device and a sensor arranged in the inner cavity of the tank body, wherein the tank body is provided with a filling port communicated with the inner cavity, a filling end is arranged at the filling port, and a drainage member is arranged in the inner cavity.

Drawings

Fig. 1 is a plan view of a vehicle-mounted tank according to a first embodiment of the present invention.

Fig. 2 is a sectional view taken along the line a-a in fig. 1.

Fig. 3 is a partial schematic view of the filling gun filling the solution into the on-board tank shown in fig. 2.

Fig. 4 is a front view of the first embodiment of the kink tube sheathed with a sieve.

Fig. 5 is a plan view of a vehicle-mounted tank according to a second embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along the line B-B in FIG. 5 and showing the insertion of the filling gun.

Fig. 7 is a perspective cross-sectional view of the vehicle-mounted tank shown in fig. 5, cut away.

Fig. 8 is a cross-sectional view of the on-board tank shown in fig. 7 at another angle.

Fig. 9 is a plan view of the in-vehicle tank of the third embodiment.

FIG. 10 is a cross-sectional view taken along the line C-C in FIG. 9 and showing the insertion of the filling gun.

Fig. 11 is a perspective cross-sectional view of the vehicle-mounted tank shown in fig. 10, cut away.

Fig. 12 is a front view of a drain of a third embodiment and a sectional view thereof.

Fig. 13 is a perspective sectional view of the drainage member of the third embodiment with ribs and a diversion surface structure on the drainage surface structure.

Fig. 14 is a perspective cross-sectional view of the drainage member of fig. 13 at another angle.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 to 3, the on-board tank 100 of the present invention includes a tank body 10 having an inner cavity, a filling end device 20, and a sensor (not shown in the embodiment) mounted in the inner cavity of the tank body 10. The box body 10 is provided with a filling port 11 communicated with the inner cavity. Wherein filling end device 20 includes a filling tip 21 and a drain 22. A filling tip 21 is mounted to the fill port 11 and a drain 22 is located in the interior cavity of the tank 10. The drainage piece 22 is arranged at the output end of the filling end head 21, the drainage piece 22 is communicated with the filling end head 21, and the drainage piece 22 is used for guiding the solution output by the filling end head 21 to deviate from a sensor. Through the drainage of the drainage piece 22, the solution does not directly impact the sensor or impact the liquid level near the sensor, so that a large amount of bubbles are prevented from being generated near the sensor, and the bubbles are prevented from interfering the detection of the sensor. The sensor is a level sensor and/or a quality sensor, but is not limited thereto.

It should be noted that the tank 10 can be applied as a urea tank for storing urea or a fuel tank for storing fuel according to actual needs, but is not limited to the above two forms. Correspondingly, the solution to be injected is a urea solution or fuel oil. The filling end device 20 is used to interface with a filling gun to facilitate the filling gun to fill the solution.

As shown in fig. 1 to 4, the drainage member 22 is a bent tube, an input end of the bent tube is mounted at an output end of the filling tip 21, and the bent tube reduces the pressure and the flow rate of the solution flowing through, so as to prevent the output solution from rapidly impacting the liquid level. Furthermore, the output end of the bending pipe is aligned to the inner side wall of the box body 10, and the solution slowly flows into the liquid level along the inner side wall after impacting the inner side wall of the box body 10, so that the entrainment of air is greatly reduced, the generation of bubbles is greatly inhibited, and the bubbles are not easy to form. The bending pipe is sleeved with a filter screen 23, and the filter screen 23 at least has an output end partially surrounding the bending pipe. The filter screen 23 is arranged to allow the solution to flow out of the bent tube through filtration to filter out impurities and air bubbles in the solution. Preferably, the filter screen 23 is the leg of a stocking form, and the filter screen 23 suit is on the pipe of buckling, and solution flows out from the output of the pipe of buckling after filter screen 23 filters, realizes filtering the bubble, reduces the effect that the bubble in the solution flowed into in the box 10.

As shown in fig. 1-4, dispensing tip 21 includes a first dispensing body 211, a movable coupling 212, and a magnetic dispensing member 213. The first filling main body 211 is arranged on the box body 10, the magnetic filling piece 213 is sleeved in the inner cavity of the first filling main body 211, the movable connector 212 is arranged at the tail end of the first filling main body 211, the movable connector 212 is communicated with the magnetic filling piece 213, and the input end of the bent pipe is sleeved on the movable connector 212. The movable connector 212 is arranged to facilitate the installation and butt joint of the bent pipe. The first filling body 211 and the magnetic filling member 213 may be of any conventional structure. Preferably, the bending tube is a hose, but not limited thereto. The hose is locked to the articulating head 212 by the hose clamp 24. Preferably, a connecting tube 214 is provided outside the filling port 11 of the tank 10, and the first filling body 211 is attached to the tank 10 via the connecting tube 214, thereby stably attaching the filling-end device 20 to the filling port 11 of the tank 10.

When installed, the movable connector 212 is first mounted to the end of the first filling body 211, and then the magnetic filling piece 213 is fitted into the inner cavity of the first filling body 211. The sock-shaped filter screen 23 is sleeved on the bent pipe, and finally the input end of the bent pipe is sleeved on the movable connector 212 and the throat hoop 24 is locked. The filling end 21 is placed into the filling port 11, the output end of the bending pipe is aligned with the inner side wall of the tank body 10, and the connecting cylinder 214 is installed on the tank body 10 by hot plate welding or screw connection.

The operation of the on-vehicle tank 100 of the first embodiment when filling with urea solution is described below: the filling gun is inserted into the filling end device 20, the urea solution output by the filling gun flows through the movable connector 212 and enters the bent pipe, the urea solution is sprayed to the inner side wall of the box body 10 through the drainage of the bent pipe and the filtration of the filter screen 23, and the urea solution impacts the inner side wall of the box body 10 and then slowly flows into the liquid level along the side wall.

As shown in fig. 5 to 8, a filling end device 20a according to a second embodiment of the present invention is provided. The filling end device 20a of the second embodiment includes a filling tip 21a and a drain 22 a. Drain 22a is mounted to the output of fill head 21a, drain 22a is in communication with fill head 21a, and drain 22a is also used to direct the solution output by fill head 21a away from the sensor. Similarly, the flow-inducing element 22a is a bent tube, the input end of which is mounted to the output end of the filling tip 21a, the output end of which is offset from the sensor. The "deflection" referred to above means that the output end of the bent tube is not aligned with the sensor. The diameter of the bending tube of the present embodiment is preferably large and short, but not limited thereto. For example, the bending tube may be an elbow, but is not limited to this structure. In the present embodiment, the sensors include the liquid level sensor 31a and the quality sensor 32a, but not limited to these two sensors, and only one of them may be selected or other sensors may be selected according to the actual requirement.

Specifically, dispensing tip 21a includes a second dispensing body 211a and a connector barrel 212 a. The first end of the connecting tube 212a is sleeved on one end of the second filling main body 211a, the connecting tube 212a is installed on the box body 10 through the second filling main body 211a, and the input end of the bent tube is butted with the second end of the connecting tube 212 a. The solution flowing through the filling body 211a falls into the bending pipe, and the bending pipe leads the solution out, so that the led solution is deviated from the liquid level sensor 31a and the quality sensor 32 a. The second filling body 211a is of an existing structure, but is not limited thereto. The connection cylinder 212a is mounted to the case 10 by means of hot plate welding or screwing, but is not limited thereto. After the connecting cylinder 212a is mounted to the tank body 10 via the second filling body 211a, the filling end device 20a is mounted to the tank body 10.

The operation of the on-board tank 100 of the second embodiment when filling with urea is described below: when the urea solution is filled, the filling gun is inserted into the filling end device 20a, the switch of the filling gun is opened to allow the urea solution to flow into the bent pipe, and the urea solution is converged into the liquid surface after being drained by the bent pipe.

As shown in fig. 9 to 12, a filling end device 20b according to a third embodiment of the present invention is provided. The present embodiment provides a fill-end device 20b that includes a fill-tip 21b and a drain 22 b. Drainage member 22b is mounted to the output end of filling tip 21b, drainage member 22b is in communication with filling tip 21b, and drainage member 22b is used to guide the solution output by filling tip 21b away from the sensor. Different from the first and second embodiments, the drainage member 22b is a drainage tube having a drainage surface structure 221b in an inner cavity, the drainage tube is detachably mounted at the output end of the filling end 21b, and the drainage surface structure 221b changes the direction of the solution in a drainage manner and then flows out, so that the output solution deviates from the sensor.

Specifically, the drainage surface structure 221b is a slope structure arranged obliquely. The diversion of the drainage of the solution is realized by means of the inclined drainage surface structure 221b, and the solution is prevented from directly impacting the sensor or impacting the liquid level near the sensor. Of course, the drainage surface structure 221b can be a cambered surface structure according to actual requirements, and can also drain the solution. Preferably, the angle of inclination of the ramp structure is in the range of 30-60 deg., more preferably 30-45 deg., but not limited to the above range. More specifically, the inclined plane structure is a textured inclined plane structure, and the texture can further guide the flow direction of the solution and slow down the impact of the solution to a certain extent, so that the solution is more smoothly merged into the liquid surface. Of course, the slope structure may be a smooth slope structure according to actual needs. At least part of the side surface of the flow guide pipe is provided with a filter screen structure, so that the solution flows out of the flow guide pipe in a filtering way to filter impurities and bubbles in the solution. Specifically, the drainage member 22b is a cylindrical filter, and the filter is detachably mounted on the output end of the filling tip 21 b.

Filling tip 21b has substantially the same structure as filling tip 21a of the second embodiment, i.e., filling tip 21b also includes a filling body 211b and a connector barrel 212 b. A first end of the connecting cylinder 212b is fitted to one end of the filling body 211b, the connecting cylinder 212b is mounted to the tank 10 through the filling body 211b, and the filter is mounted to an output end of the filling body 211b and is located in the connecting cylinder 212 b. The filling body 211b is mounted to the tank 10 by means of hot plate welding or screwing, but is not limited thereto. When the filling body 211b is mounted on the tank 10, the connecting tube 212b and the drain member 22b connected to the filling body 211b are mounted on the tank 10. The solution flowing through the filling body 211b falls into the filter, and is reflected by the drainage surface structure 221b at the bottom of the filter and then flows into the liquid surface.

In the present embodiment, the sensors include the liquid level sensor 31b and the quality sensor 32b, but not limited to these two sensors, and only one of them may be selected or other sensors may be selected according to the actual requirement.

As shown in fig. 13 and 14, the top of the drainage surface structure 211 is provided with a plurality of ribs 222b extending along the inclined direction thereof, the plurality of ribs 222b are arranged alternately, a guiding groove 223b is formed between two adjacent ribs 222b, and the solution is guided when flowing through the guiding groove 223b, so that the flow of the solution can be accelerated, and the accumulation of the solution and air bubbles can be avoided. Further, a diversion surface structure 224b inclined towards two sides is formed upwards at the top of the drainage surface structure 211 close to the tail end, the top of the diversion surface structure 224b is relatively narrow, the bottom of the diversion surface structure 224b is relatively wide, and when a solution is injected, the solution originally colliding against the inner wall of the injection gun can directly flow downwards along the diversion surface structure 224b, so that the solution injection speed is increased, and the problems of solution accumulation and a large amount of bubbles generation in the drainage piece 22b are avoided.

The operation of the on-board tank 100 of the third embodiment when filling with urea is described below: when the urea solution is filled, a filling gun is inserted into the filling end device 20b, a switch of the filling gun is opened to allow the urea solution to flow into the filter, and the urea solution is guided by a slope structure at the bottom of the filter and then flows into the liquid level.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, therefore, all equivalent variations of the present invention are covered by the following claims.

Claims (10)

1. The filling end device is suitable for being installed on a box body of a vehicle-mounted liquid storage box, and a sensor is installed in the box body.

2. The filling end device of claim 1 wherein the flow directing member is a bent tube, an input end of the bent tube being mounted to an output end of the filling end.

3. The filling end device of claim 2, wherein the outlet end of the angled tube is offset from the sensor or aligned with an inner sidewall of the tank.

4. The filling end device according to claim 3, wherein the filling end head comprises a first filling main body, a movable connector and a magnetic filling piece, the first filling main body is mounted on the box body, the magnetic filling piece is sleeved in an inner cavity of the first filling main body, the movable connector is mounted at the tail end of the first filling main body and communicated with the magnetic filling piece, and an input end of the bent pipe is sleeved on the movable connector.

5. The filling end device according to claim 3, wherein the filling end head comprises a second filling main body and a connecting cylinder, a first end of the connecting cylinder is sleeved at one end of the second filling main body, the connecting cylinder is installed on the box body, and an input end of the bent pipe is in butt joint with a second end of the connecting cylinder.

6. The filling end device of claim 2 wherein the bend tube is sleeved with a screen having at least a portion of its structure surrounding the outlet end of the bend tube.

7. The filling end device of claim 1, wherein the drainage member is a drainage tube having an inner cavity provided with a drainage surface structure, the drainage tube is detachably mounted on the output end of the filling end head, and the drainage surface structure drains the solution and outputs the drained solution, so that the output solution deviates from the sensor.

8. The filling end device of claim 7, wherein the drainage surface structure is a sloped surface structure in an inclined arrangement, and the sloped surface structure is a smooth sloped surface structure or a textured sloped surface structure.

9. The filling end device of claim 7, wherein the draft tube is at least partially flanked by a screen structure.

10. A vehicle-mounted liquid storage tank, which is characterized by comprising a tank body with an inner cavity, the filling end device as claimed in any one of claims 1 to 9 and a sensor arranged in the inner cavity of the tank body, wherein the tank body is provided with a filling port communicated with the inner cavity, the filling end is arranged at the filling port, and the drainage member is arranged in the inner cavity.

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