Automotive urea solution filling box

Abstract

The utility model discloses an automotive urea solution filling box, which comprises a filling unit, a purifying unit and a liquid level control unit, the filling unit comprises a filling box and a filling pipe fixedly communicated with the top of the filling box, the side surface of the filling box is fixedly communicated with a discharge pipe, the purifying unit comprises a purifying pipe fixedly communicated with the side surface of the filling box, and a valve is sleeved on the purifying pipe. The end, away from the filling box, of the purifying pipe is sleeved with a connecting cover in a threaded mode, the inner wall of the connecting cover is in threaded connection with a filter rod, and the side face of the purifying pipe fixedly communicates with a connecting pipe. According to the utility model, crystals deposited at the bottom of the filling box and urea flow into the water purification pipe together by pulling the T-shaped rod, the crystals and pollutants can be intercepted by using the filter rod, a clean urea solution flows into the cylinder, and then the clean urea solution flows back into the filling box again by pushing the T-shaped rod, so that the water purification effect is improved. Therefore, crystals in the urea solution can be extracted and filtered.

Description

TECHNICAL FIELD

[0001] The utility model relates to urea filling box technical field especially, relates to a vehicle -used urea solution filling box. BACKGROUND

[0002] The vehicle -used urea solution filling box is mainly used to store and supply vehicle -used urea solution, and the vehicle -used urea solution is converted into harmless nitrogen and water vapor by chemical reaction with nitrogen oxide in tail gas, thereby reducing the pollution of vehicle tail gas to the environment, and the vehicle -used urea solution filling box is usually made of urea corrosion resistant material, such as polyethylene. Its design needs to consider the sealing property, the capacity size, the convenience of filling port and the coordination with the overall layout of vehicle. In actual use, the urea solution remaining amount in the filling box needs to be checked regularly, and timely supplement is needed to ensure the normal operation of vehicle tail gas treatment system.

[0003] When the urea solution concentration in the vehicle filling box is too high or too low, it will deviate from the normal standard range, which will increase the possibility of crystallization. In addition, when the urea solution in the filling box is in a static state and the filling box is not tightly sealed, the water in the urea solution is evaporated, which makes the urea solution concentration larger and more likely to appear crystallization and precipitation. The existing filling box cannot separate the generated crystal from urea, so that the efficiency of urea solution is low, thereby the tail gas cannot be effectively treated. Therefore, a vehicle -used urea solution filling box is proposed. SUMMARY

[0004] This part aims to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the prior art, the utility model is proposed.

[0006] Therefore, the utility model aims to provide a vehicle -used urea solution filling box, which is suitable for solving the problem that the existing filling box cannot separate the generated crystal from urea, so that the efficiency of urea solution is low, thereby the tail gas cannot be effectively treated.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a vehicle -used urea solution filling box, comprising:

[0008] The filling unit comprises a filling box and a filling pipe fixedly connected to the top of the filling box, and the side surface of the filling box is fixedly connected with a discharge pipe;

[0009] The purifying unit comprises a purifying pipe fixedly communicated at the side of the filling tank, a valve is sleeved on the purifying pipe, a connecting cover is threadedly sleeved at the end of the purifying pipe away from the filling tank, a filter stick is threadedly connected to the inner wall of the connecting cover, a connecting pipe is fixedly communicated at the side of the purifying pipe, a cylinder is fixedly communicated at the top end of the connecting pipe, a reflux pipe is further fixedly communicated between the cylinder and the filling tank, and the purifying unit further comprises a water pumping assembly for pumping the urea solution.

[0010] As a preferred scheme of the urea solution filling tank for vehicle, the water pumping assembly comprises a T-shaped rod penetratingly arranged at the end of the cylinder, a rubber head is fixedly connected to one end of the T-shaped rod in the inner cavity of the cylinder, a telescopic rod is rotatably connected to the inner wall of the T-shaped rod, the end of the telescopic rod towards the rubber head is sequentially slidably penetrating through the rubber head and the T-shaped rod, a baffle is fixedly sleeved at the end of the telescopic rod, an arc-shaped sliding groove is formed in the inner wall of the cylinder and matched with the baffle, and the baffle is positionally corresponding to the connecting pipe and the reflux pipe.

[0011] As a preferred scheme of the urea solution filling tank for vehicle, a limiting groove matched with the telescopic rod is formed in the end of the T-shaped rod, a first spring is sleeved on the telescopic rod, and one end of the first spring is fixedly connected to the inner wall of the limiting groove.

[0012] As a preferred scheme of the urea solution filling tank for vehicle, a rotating rod is rotatably connected to the top of the filling tank, the bottom end of the rotating rod penetrates through and extends to the bottom of the inner cavity of the filling tank, two positionally symmetrical fixed plates are fixedly connected to the rod surface of the bottom of the rotating rod, an activity plate is slidably arranged at the end of each fixed plate, an extension slot for accommodating the activity plate is formed in the end of each fixed plate, a second spring is arranged in the extension slot, and the two ends of the second spring are fixedly connected with the inner wall of the extension slot and the end wall of the activity plate respectively.

[0013] As a preferred scheme of the urea solution filling tank for vehicle, a roller is rotatably connected to the end of each activity plate, a door-shaped plate is threadedly sleeved on the rod surface of the rotating rod, a rectangular frame is fixedly connected to the bottom of the door-shaped plate, and the outer wall of the rectangular frame abuts against the inner wall of the filling tank.

[0014] As a preferred scheme of the urea solution filling tank for vehicle, a first observation window is inlaid in the side of the filling tank, and a second observation window is inlaid in the side of the cylinder.

[0015] The utility model discloses beneficial effect: through opening the valve of clean water pipe, then pull T type rod and make its crystallization that deposits in the filling tank bottom with urea flow to clean water pipe, utilize filter stick to be able to intercept crystallization and pollutant, make its clean urea solution flow to the cylinder, then through the T type rod and make its clean urea solution reflux to the filling tank again, can extract crystallization in urea solution from this, and the urea solution after extraction still can continue to use, and will not cause waste. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduce, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings. Wherein:

[0017] Figure 1 The utility model discloses a whole structure schematic diagram of vehicle urea solution filling tank is provided;

[0018] Figure 2 The utility model discloses the connection relation explosion schematic diagram of connecting cover and filter stick and purifying pipe is provided;

[0019] Figure 3 The utility model discloses the cylinder partial section internal structure schematic diagram is provided;

[0020] Figure 4 The utility model discloses the T type rod and first spring connection structure schematic diagram is provided;

[0021] Figure 5 The utility model discloses the turn rod and door type board connection structure schematic diagram is provided;

[0022] Figure 6 The utility model discloses the fixed plate and movable plate connection relation explosion schematic diagram is provided.

[0023] BRIEF DESCRIPTION OF DRAWINGS: 100, filling unit;101, filling tank;102, filling pipe;103, discharge pipe;104, first observation window;105, second observation window;200, purification unit;201, purifying pipe;202, connecting cover;203, filter stick;204, connecting pipe;205, cylinder;206, reflux pipe;207, water pumping assembly;2071, T type rod;2072, rubber head;2073, telescopic rod;2074, baffle;208, first spring;209, turn rod;210, fixed plate;211, movable plate;212, second spring;213, door type board;214, rectangular frame. DETAILED DESCRIPTION

[0024] In order to make the above object, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0026] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0027] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure will be partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual manufacture.

[0028] Embodiment

[0029] Reference Figures 1-6 For one embodiment of the present application, a vehicle urea solution filling tank is provided, comprising: a filling unit 100 and a purification unit 200;

[0030] The filling unit 100 comprises a filling tank 101 and a filling pipe 102 fixedly communicated at the top of the filling tank 101, and the side of the filling tank 101 is fixedly communicated with a discharge pipe 103;

[0031] The purification unit 200 comprises a purification pipe 201 fixedly communicated at the side of the filling tank 101, a valve is sleeved on the purification pipe 201, a connecting cover 202 is threadedly sleeved on the end of the purification pipe 201 away from the filling tank 101, a filter stick 203 is threadedly connected to the inner wall of the connecting cover 202, a connecting pipe 204 is fixedly communicated at the side of the purification pipe 201, and a cylinder 205 is fixedly communicated at the top end of the connecting pipe 204, a reflux pipe 206 is further fixedly communicated between the cylinder 205 and the filling tank 101, the purification unit 200 further comprises a water pumping assembly 207 for pumping urea solution, a first observation window 104 is inlaid at the side of the filling tank 101, and a second observation window 105 is inlaid at the side of the cylinder 205.

[0032] The pumping assembly 207 comprises a T-shaped rod 2071 penetrating through the end of the cylinder 205, a rubber head 2072 is fixedly connected to one end of the inner cavity of the cylinder 205, a telescopic rod 2073 is rotatably connected to the inner wall of the T-shaped rod 2071, the telescopic rod 2073 is sequentially slidably penetrated through the rubber head 2072 and the T-shaped rod 2071, a baffle 2074 is fixedly sleeved on the end of the telescopic rod 2073, an arc-shaped sliding groove is formed in the inner wall of the cylinder 205, the baffle 2074 corresponds to the connecting pipe 204 and the return pipe 206, a limiting groove is formed in the end of the T-shaped rod 2071, a first spring 208 is sleeved on the telescopic rod 2073, and one end of the first spring 208 is fixedly connected to the inner wall of the limiting groove.

[0033] When the top of the filling pipe 102 is provided with a sealing cover, the filling pipe 102 is used to add urea solution to the filling tank 101, and the discharge pipe 103 needs to be externally connected with a conveying pipe of a vehicle to convey urea solution to the vehicle, when the urea solution in the filling tank 101 crystallizes, the valve of the purification pipe 201 is opened, and the valve of the purification pipe 201 can directly discharge the unusable urea solution, when the urea solution flows into the purification pipe 201, the end of the filter stick 203 facing the filling tank 101 is designed to be hollow, so that the crystallization is intercepted on the inner wall of the filter stick 203, and the clean urea solution passes through the inner wall of the filter stick 203 and flows into the connecting pipe 204;

[0034] The telescopic rod 2073 is rotated to drive the baffle 2074 to rotate, the end of the telescopic rod 2073 is fixedly connected with a rectangular block provided with a triangular arrow, the triangular arrow corresponds to the baffle 2074, the triangular arrow can facilitate the user to determine the position of the baffle 2074, the baffle 2074 is designed in an L shape, and the bottom of the baffle 2074 is arc-shaped and fits the arc surface of the cylinder 205, the inner wall of the cylinder 205 is provided with an arc-shaped sliding groove matching the baffle 2074, so that the bottom arc surface of the baffle 2074 does not protrude from the inner wall of the cylinder 205, when the baffle 2074 shields the end of the return pipe 206, the T-shaped rod 2071 can be pulled;

[0035] At this time, the rectangular block of the telescopic rod 2073 is inserted into the limiting groove of the T-shaped rod 2071, so as to fix the position of the baffle 2074, the rubber head 2072 is pulled to generate negative pressure in the inner cavity of the cylinder 205, then the filtered urea solution can be pumped into the cylinder 205 through the connecting pipe 204, at this time, the urea solution in the cylinder 205 does not flow into the return pipe 206, then the rectangular block is pulled out of the limiting groove, and the telescopic rod 2073 is rotated again to shield the top of the connecting pipe 204 with the baffle 2074, at this time, the cylinder 205 is in communication with the return pipe 206, then the rectangular block is inserted into the limiting groove to fix the position of the baffle 2074.

[0036] Then push the T-shaped rod 2071 together with the rectangular block, so that the telescopic rod 2073 is extruded and shortened, and the rubber head 2072 extrudes the urea solution in the cylinder 205 into the return pipe 206, and the filtered urea solution is returned to the filling tank 101 again through the return pipe 206. When the rectangular block and the T-shaped rod 2071 are loosened, the first spring 208 pushes the rectangular block to make it disengage from the limiting groove, so that the user can lengthen the telescopic rod 2073 and restore the original length. By repeatedly pulling the T-shaped rod 2071, the crystals in the urea solution can be extracted, and the extracted urea solution can still be used without waste. The filtering state can be observed through the first observation window 104, the filtering effect of the filter stick 203 can be observed through the second observation window 105, and the rotating connecting pipe 204 can be taken out of the purification pipe 201 to facilitate the replacement of the filter stick 203.

[0037] In addition, the top of the filling tank 101 is rotationally connected with a rotating rod 209, the bottom end of the rotating rod 209 penetrates and extends to the bottom of the inner cavity of the filling tank 101, the rod surface of the bottom of the rotating rod 209 is fixedly connected with two positionally symmetrical fixed plates 210, the end portions of the two fixed plates 210 are slidingly provided with movable plates 211, the end portions of each fixed plate 210 are provided with telescopic grooves for accommodating the movable plates 211, the telescopic grooves are provided with second springs 212, the two ends of the second springs 212 are fixedly connected with the inner wall of the telescopic groove and the end wall of the movable plate, respectively, the end portions of the two movable plates 211 are rotationally connected with rollers, the rod surface of the rotating rod 209 is threadedly sleeved with a door-shaped plate 213, the bottom of the door-shaped plate 213 is fixedly connected with a rectangular frame 214, and the outer wall of the rectangular frame 214 abuts against the inner wall of the filling tank 101.

[0038] The top of the rotating rod 209 is fixedly connected with a rotating disc handle, the rotating rod 209 is rotated to drive the two fixed plates 210 to rotate, the rollers can slide along the inner wall of the filling tank 101, the movable plates 211 do not directly rub against the inner wall of the filling tank 101 through the rollers, and the movable plates 211 can slide along the inner wall of the fixed plates 210 through the second springs 212, so that the length of the movable plates 211 and the fixed plates 210 can automatically expand and contract.

[0039] The fixed plates 210 and the movable plates 211 can stir the crystals precipitated at the bottom of the filling tank 101 to facilitate filtration. During the rotation of the rotating rod 209, the rectangular frame 214 can move up and down on the rotating rod 209 through the door-shaped plate 213, and the crystals attached to the inner wall of the filling tank 101 can be hung off through the rectangular frame 214, so as to ensure the filtering effect of the urea solution in the filling tank 101 and prevent a large amount of crystals from being left.

[0040] During use, the crystallization deposited at the bottom of the filling tank 101 is agitated by rotating the rotating rod 209 to make the movable plate 211 and the fixed plate 210, and the rectangular frame 214 can make the crystallization adhered to the inner wall of the filling tank 101 fall off, then the valve of the purification pipe 201 is opened, and the telescopic rod 2073 is rotated to drive the baffle 2074 to rotate, the baffle 2074 blocks the end of the reflux pipe 206, then the T-shaped rod 2071 is pulled to make the rubber head 2072 generate negative pressure in the inner cavity of the cylinder 205, then the solution filtered by the filter stick 203 is drawn into the cylinder 205 through the connecting pipe 204;

[0041] At this time, the telescopic rod 2073 is rotated again to make the baffle 2074 block the top of the connecting pipe 204, then the T-shaped rod 2071 is pushed together with the rectangular block, and the rubber head 2072 of the T-shaped rod 2071 extrudes the urea solution in the cylinder 205 into the reflux pipe 206, the filtered urea solution is refluxed into the filling tank 101 again through the reflux pipe 206, when the rectangular block and the T-shaped rod 2071 are loosened, the first spring 208 pushes the rectangular block to make it disengage from the limiting groove, so that the user can lengthen the telescopic rod 2073 and restore the original length, thus repeatedly pulling the T-shaped rod 2071 can extract the crystallization in the urea solution, and the extracted urea solution can still be used, without causing waste.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A vehicle-mounted urea solution filling tank, characterized in that, include: A filling unit (100) includes a filling box (101) and a filling pipe (102) fixedly connected to the top of the filling box (101), and a discharge pipe (103) fixedly connected to the side of the filling box (101); The purification unit (200) includes a purification pipe (201) fixedly connected to the side of the filling tank (101), a valve is sleeved on the purification pipe (201), a connecting cap (202) is threadedly sleeved at the end of the purification pipe (201) away from the filling tank (101), a filter rod (203) is threadedly connected to the inner wall of the connecting cap (202), a connecting pipe (204) is fixedly connected to the side of the purification pipe (201), and a cylinder (205) is fixedly connected to the top end of the connecting pipe (204). A return pipe (206) is also fixedly connected between the cylinder (205) and the filling tank (101). The purification unit (200) also includes a water pumping assembly (207) for extracting urea solution.

2. The vehicle urea solution filling tank according to claim 1, characterized in that: The pumping assembly (207) includes a T-shaped rod (2071) that passes through the end of the cylinder (205). A rubber head (2072) is fixedly connected to one end of the T-shaped rod (2071) located in the inner cavity of the cylinder (205). A telescopic rod (2073) is rotatably connected to the inner wall of the T-shaped rod (205). The end of the telescopic rod (2073) facing the rubber head (2072) slides through the rubber head (2072) and the T-shaped rod (2071) in sequence. A baffle (2074) is fixedly sleeved on the end of the telescopic rod (2073). An arc-shaped groove that fits the baffle (2074) is opened on the inner wall of the cylinder (205). The baffle (2074) corresponds to the position of the connecting pipe (204) and the return pipe (206).

3. The vehicle urea solution filling tank according to claim 2, characterized in that: The end of the T-shaped rod (2071) is provided with a limiting groove for fitting the telescopic rod (2073), and a first spring (208) is sleeved on the telescopic rod (2073). One end of the first spring (208) is fixedly connected to the inner wall of the limiting groove.

4. The vehicle urea solution filling tank according to claim 1, characterized in that: A rotating rod (209) is rotatably connected to the top of the filling tank (101). The bottom end of the rotating rod (209) extends through and to the bottom of the inner cavity of the filling tank (101). Two fixed plates (210) are fixedly connected to the bottom of the rotating rod (209). Movable plates (211) are slidably provided at the ends of the two fixed plates (210). Each fixed plate (210) has a telescopic groove for accommodating the movable plate (211) at its end. A second spring (212) is provided in the telescopic groove. The two ends of the second spring (212) are fixedly connected to the inner wall of the telescopic groove and the end wall of the movable plate, respectively.

5. A vehicle-mounted urea solution filling tank according to claim 4, characterized in that: Both of the movable plates (211) are rotatably connected to rollers at their ends. The rod surface of the rotating rod (209) is threaded with a gate-shaped plate (213). A rectangular frame (214) is fixedly connected to the bottom of the gate-shaped plate (213). The outer wall of the rectangular frame (214) abuts against the inner wall of the filling tank (101).

6. The vehicle urea solution filling tank according to claim 1, characterized in that: The side of the filling tank (101) is fitted with a first observation window (104), and the side of the cylinder (205) is fitted with a second observation window (105).

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