Automotive urea filling anti-overflow equipment

Abstract

The utility model provides an automotive urea filling anti-overflow device which comprises a filling pipe, one end of the filling pipe is provided with an anti-overflow mechanism, and the other end of the filling pipe is communicated with a first threaded cover. The anti-overflow mechanism comprises a main pipe, and a first fixing ring and a second fixing ring are arranged at the two ends of the main pipe correspondingly. The first fixing ring is communicated with the filling end of the filling pipe, an auxiliary pipe is assembled in the second fixing ring in a threaded mode, one end of the auxiliary pipe extends to the inner side of the main pipe, a rubber plug matched with the inner diameter of the first fixing ring is fixedly installed at the end of the auxiliary pipe, through grooves arranged circumferentially are formed in the side wall of the auxiliary pipe, and the other end of the auxiliary pipe extends to the outside and is communicated with a second threaded cover. According to the vehicle urea filling device, after the urea tank is filled with the urea, the second threaded cover is rotated to make the second threaded cover spirally retreat to be separated from the filling port of the vehicle urea tank, meanwhile, the auxiliary pipe synchronously retreats, then the first fixing ring is blocked by the rubber plug, and therefore residual vehicle urea can be left in the filling pipe and prevented from overflowing to cause waste.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of filling pipes, and in particular to a vehicle urea filling overflow prevention device. Background Art

[0002] Automotive urea is used to react with diesel engine exhaust to reduce exhaust pollution. Automotive urea can be automatically filled through an automotive urea filling machine or filled by itself through a filling pipe. The advantage of filling with a filling pipe is that it can be filled anytime and anywhere, which is more convenient and affordable.

[0003] According to the application number: CN202221053318.2, a vehicle urea filling pipe is disclosed, including a straight pipe, wherein both ends of the straight pipe are respectively provided with an elbow and a filling nozzle, a funnel is provided at the end of the elbow away from the straight pipe, and a plugging assembly is provided on the straight pipe, wherein the plugging assembly includes a shell fixedly connected to the top shell wall of the straight pipe, a cross plate is provided inside the shell, a slide plate located inside the shell is slidably connected above the cross plate, and a pressing block is fixedly connected to the top of the slide plate.

[0004] In the above-mentioned prior art, after the liquid filling is completed, the sealing plate moves down to quickly seal the straight pipe. However, a large amount of automotive urea will still remain in the straight pipe located between the sealing plate and the filling nozzle. After the filling nozzle is removed, the automotive urea will still overflow to the outside and cause waste. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model:

[0006] The utility model provides a vehicle urea filling overflow prevention device, which is used to solve the technical problems existing in the above-mentioned background technology.

[0007] 2. Technical solution:

[0008] To achieve the above object, the utility model provides a technical solution: a vehicle urea filling overflow prevention device, comprising a filling pipe, one end of which is provided with an overflow prevention mechanism, and the other end of which is connected to a first threaded cap;

[0009] The overflow prevention mechanism comprises a main pipe, and two ends of the main pipe are respectively provided with a first fixing ring and a second fixing ring;

[0010] The first fixing ring is connected to the filling end of the filling pipe, and the second fixing ring is equipped with a secondary pipe on the inner thread. One end of the secondary pipe extends to the inner side of the main pipe, and a rubber plug matching the inner diameter of the first fixing ring is fixedly installed on the end. The side wall is provided with circumferentially arranged through grooves, and the other end extends to the outside, and a second threaded cover is connected to the end.

[0011] Furthermore, a sealing rubber ring is provided on the secondary pipe, and the sealing rubber ring is movably installed with a sealing ring fixedly installed in the main pipe.

[0012] Furthermore, both the first threaded cover and the second threaded cover are provided with threaded rings, and the number of the threaded rings is several and the radius specifications are different.

[0013] Furthermore, a vent pipe of a predetermined length is connected to the side wall of the filling pipe near the first threaded cover, and a closing cover is fixedly provided on the top of the vent pipe.

[0014] 3. Beneficial effects:

[0015] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: when the urea tank is filled, the second threaded cover is rotated to make its spiral retreat and disengage from the filling port of the vehicle urea tank, and the auxiliary pipe will retreat synchronously, so that the rubber plug will seal the first fixing ring, so that the residual vehicle urea can be left in the filling pipe to avoid overflowing to the outside and causing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the explosion structure of the overflow prevention mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-section structure of the overflow prevention mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the threaded cover of the utility model.

[0020] Reference numerals:

[0021] 1. Filling pipe; 2. Anti-overflow mechanism; 201. Main pipe; 202. First fixing ring; 203. Second fixing ring; 204. Sub-pipe; 2041. Through groove; 205. Rubber plug; 206. Sealing rubber ring; 207. Sealing ring; 3. First threaded cover; 4. Second threaded cover; 5. Threaded ring; 6. Air vent; 7. Closing cover. DETAILED DESCRIPTION

[0022] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0026] See attached Figure 1-4 , a vehicle urea filling overflow prevention device, comprising a filling pipe 1, one end of the filling pipe 1 is provided with an overflow prevention mechanism 2, and the other end is connected with a first threaded cover 3;

[0027] The overflow prevention mechanism 2 includes a main pipe 201, and two ends of the main pipe 201 are respectively provided with a first fixing ring 202 and a second fixing ring 203;

[0028] The first fixing ring 202 is connected to the filling end of the filling pipe 1, and the second fixing ring 203 is internally threaded with a secondary pipe 204. One end of the secondary pipe 204 extends to the inside of the main pipe 201, and a rubber plug 205 matching the inner diameter of the first fixing ring 202 is fixedly installed on the end. The side wall is provided with circumferentially arranged through grooves 2041, and the other end extends to the outside, and the end is connected with a second threaded cover 4.

[0029] In this embodiment, the first threaded cover 3 is first rotated to connect it with the opening of the vehicle urea barrel, and then the second threaded cover 4 is rotated to make it spirally move forward and connect with the filling port of the vehicle urea tank. At the same time, the auxiliary pipe 204 will move forward synchronously, so that the rubber plug 205 will leave the first fixing ring 202. At this time, the vehicle urea barrel is lifted up to be located above the urea tank. The vehicle urea in the vehicle urea barrel will flow along the filling pipe 1 under the action of gravity, from the first fixing ring 202 to the main pipe 201, and then It enters the auxiliary pipe 204 through the through groove 2041 and is finally filled into the urea tank. When the urea tank is full, the second threaded cover 4 is rotated in the opposite direction to make its spiral retreat and disengage from the filling port of the vehicle urea tank. At the same time, the auxiliary pipe 204 will retreat synchronously, so that the rubber plug 205 will block the first fixing ring 202, so that the remaining vehicle urea can be left in the filling pipe 1 to avoid overflowing to the outside and causing waste. Finally, the filling pipe 1 is erected to send the remaining vehicle urea back to the vehicle urea barrel.

[0030] A sealing rubber ring 206 is provided on the secondary pipe 204 , and the sealing rubber ring 206 is movably installed with a sealing ring 207 fixedly installed in the main pipe 201 to improve the sealing performance.

[0031] The first threaded cover 3 and the second threaded cover 4 are both provided with threaded rings 5 ​​. The number of threaded rings 5 ​​is several, and the radius specifications are different, so as to adapt to the openings of vehicle urea barrels and the filling ports of vehicle urea tanks of different specifications.

[0032] A vent pipe 6 of a predetermined length is connected to the side wall of the filling pipe 1 near the first threaded cover 3 , and a closing cover 7 is fixedly provided on the top of the vent pipe 6 .

[0033] In this embodiment, when filling the vehicle urea tank with vehicle urea, the vent pipe 6 is vertically upward, and the cover 7 is opened to allow outside air to enter the filling pipe 1 through the vent pipe 6, thereby increasing the filling speed.

[0034] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

[0035] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art.

Claims

1. A vehicle urea filling overflow prevention device, characterized in that: It comprises a filling pipe (1), one end of which is provided with an anti-overflow mechanism (2), and the other end of which is connected to and provided with a first threaded cap (3); The overflow prevention mechanism (2) comprises a main pipe (201), and a first fixing ring (202) and a second fixing ring (203) are respectively provided at two ends of the main pipe (201); The first fixing ring (202) is connected to the filling end of the filling pipe (1); the second fixing ring (203) is internally threadedly provided with a secondary pipe (204); one end of the secondary pipe (204) extends to the inside of the main pipe (201), and a rubber plug (205) matching the inner diameter of the first fixing ring (202) is fixedly installed at the end; a circumferentially arranged through grooves (2041) are provided on the side wall; the other end extends to the outside, and a second threaded cover (4) is connected to the end.

2. The vehicle urea filling overflow prevention device according to claim 1, characterized in that: The secondary pipe (204) is provided with a sealing rubber ring (206), and the sealing rubber ring (206) is movably mounted to a sealing ring (207) fixedly mounted in the primary pipe (201).

3. The vehicle urea filling overflow prevention device according to claim 1, characterized in that: A threaded ring (5) is provided inside each of the first threaded cover (3) and the second threaded cover (4), and the threaded rings (5) are multiple in number and have different radius specifications.

4. The vehicle urea filling overflow prevention device according to claim 1, characterized in that: A vent pipe (6) of a predetermined length is provided in communication with the side wall of the filling pipe (1) near the first threaded cover (3), and a closing cover (7) is fixedly provided on the top of the vent pipe (6).

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