Filtering device for the production of urea for vehicles

Abstract

The utility model provides a kind of filter device of vehicle urea production belongs to filter device technical field, including filter box, two discharge outlets are set in filter box, two discharge outlets are symmetrically arranged in the bottom of filter box two sides;The bottom of each discharge outlet is integrally fixed and communicated with flow guide pipe, and filter screen is rotatably blocked in each flow guide pipe;Two connecting rods are limit slidingly arranged on the outer surface of filter box;Push rod is fixed between two connecting rods, and the bottom inner wall of filter box is scraped with push rod;The outer surface of flow guide pipe is limit slidingly arranged with lever, lever is driven and cooperated with filter screen by transmission member, and elastic member is arranged between lever and flow guide pipe;Slipping mechanism acting on connecting rod is arranged on filter box, and connecting rod and lever are contact transmission cooperation.The application moves push rod by slipping mechanism, filter screen is overturned by the aid of transmission member and elastic member, so that the sediment on filter screen is discharged through flow guide pipe, and it is easy to operate.

Description

Technical Field

[0001] This utility model belongs to the field of filtration device technology, specifically relating to a filtration device for automotive urea production. Background Technology

[0002] Automotive urea, also known as diesel exhaust fluid, is a key additive in SCR (Selective Catalytic Reduction) technology used to reduce nitrogen oxide emissions from diesel vehicles. This solution is prepared by mixing high-purity urea and deionized water in a specific ratio, and through a catalytic reaction, it converts nitrogen oxides in exhaust gases into nitrogen and water vapor. Its production process requires the use of a filtration device to finely filter the urea solution to remove impurities and precipitates, ensuring product purity and effectiveness. However, most filtration devices require manual disassembly and cleaning of the filter screen, a cumbersome and time-consuming process that hinders practical application. Therefore, there is an urgent need for a filtration device for the production of automotive urea.

[0003] The existing patent with publication number CN222427262U discloses a urine tank for automotive urea production, including a tank body, a filter frame fixedly installed at the bottom of the tank body; a through groove opened in the tank body corresponding to the filter frame; a support plate fixedly installed on the inner wall of the filter frame; a filter screen placed on the top of the support plate; and handles provided at both ends of the filter screen.

[0004] However, the above solution cannot directly remove the sediment from the filter screen inside the tank. The filter screen can only be removed from the tank and cleaned manually, which is cumbersome and increases the labor intensity of the staff, making it inconvenient for practical promotion and use. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a filtration device for the production of automotive urea.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A filtration device for producing automotive urea includes a filter box with two outlets symmetrically located on both sides of the bottom. Each outlet has an integrally fixed guide pipe at its bottom, and each guide pipe contains a rotatably sealed filter screen. Two connecting rods are slidably positioned on the outer surface of the filter box, symmetrically located on both sides. A push rod is fixed between the two connecting rods, engaging with the inner bottom wall of the filter box. A lever is slidably positioned on the outer surface of the guide pipe, engaging with both the filter screen via a transmission component and an elastic element between the lever and the guide pipe. The filter box has a sliding mechanism acting on the connecting rods, with the connecting rods and lever engaging in contact transmission.

[0008] Furthermore, the sliding mechanism includes a motor, with the motor fixedly embedded in the connecting rod, and a first gear fixedly mounted on the output shaft of the motor; a first rack is fixedly mounted on the outer surface of the filter box, and the first gear meshes with the first rack for transmission.

[0009] Furthermore, a first sliding groove is formed on the outer surface of the filter box, and a slider is integrally fixed on the outer surface of the connecting rod, with the slider engaging with the first sliding groove for limiting sliding.

[0010] Furthermore, the elastic element includes a spring, a second groove is formed inside the guide tube, and the lever is slidably positioned in the second groove; a spring is provided between the lever and the second groove, one end of the spring is fixedly connected to the lever, and the other end is fixedly connected to the inner wall of the second groove.

[0011] Furthermore, the transmission component includes a second rack, a rotating shaft is fixedly provided at one end of the filter screen, and the other end of the rotating shaft rotatably passes through the filter box and is fixedly fitted with a second gear; a second rack is fixedly provided at the bottom of the lever, and the second gear meshes with the second rack for transmission.

[0012] Furthermore, an inlet pipe is fixedly installed on the top of the filter box.

[0013] Furthermore, a maintenance cover can be detachably installed on the top of the filter box.

[0014] Furthermore, a support leg is fixedly installed at the bottom of the filter box.

[0015] This application has the following beneficial effects:

[0016] This application uses a sliding mechanism to move a push rod, which can not only push the sediment at the bottom of the filter box towards the discharge port during the filtration stage so that the sediment can be filtered through the filter screen, but also, with the help of transmission and elastic components, push the filter screen to flip during the cleaning stage so that the sediment on the filter screen can be discharged through the guide pipe. The operation is simple, reduces the labor intensity of the workers, and is more conducive to practical promotion and use. Attached Figure Description

[0017] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is the overall longitudinal section of this utility model. Figure 1 ;

[0020] Figure 3 This is a utility model Figure 2 A magnified view of a portion of point A in the middle;

[0021] Figure 4 This is the overall longitudinal section of this utility model. Figure 2 ;

[0022] Figure 5 This is a utility model Figure 4 A magnified view of a portion of point B in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Filter box; 2. Inlet pipe; 3. First rack; 4. Connecting rod; 5. First chute; 6. Guide pipe; 7. Filter screen; 8. Rotating shaft; 9. First gear; 10. Second chute; 11. Pulley; 12. Second rack; 13. Spring; 14. Slider; 15. Motor; 16. Second gear; 17. Push rod; 18. Discharge port. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] like Figures 1-5 As shown, the technical solution adopted by this utility model is as follows: A filtration device for producing automotive urea includes a filter box 1, with two discharge ports 18 opened inside the filter box 1, the two discharge ports 18 being symmetrically arranged on both sides of the bottom of the filter box 1; a guide pipe 6 is integrally fixedly connected to the bottom of each discharge port 18, and a filter screen 7 is rotatably sealed inside each guide pipe 6.

[0027] Two connecting rods 4 are slidably mounted on the outer surface of the filter box 1, and the two connecting rods 4 are symmetrically arranged on both sides of the filter box 1. A push rod 17 is fixedly mounted between the two connecting rods 4. The push rod 17 cooperates with the scraper on the bottom inner wall of the filter box 1 to scrape the sediment settled on the bottom inner wall of the filter box 1 toward the filter screens 7 on both sides.

[0028] The filter box 1 is equipped with a sliding mechanism that acts on the connecting rod 4.

[0029] Specifically, the sliding mechanism includes a motor 15, which is fixedly embedded in the connecting rod 4. The output shaft of the motor 15 is fixedly provided with a first gear 9. The outer surface of the filter box 1 is fixedly provided with a first rack 3, and the first gear 9 meshes with the first rack 3 for transmission.

[0030] More specifically, a first groove 5 is formed on the outer surface of the filter box 1, and a slider 14 is integrally fixed on the outer surface of the connecting rod 4. The slider 14 is limited and slidably engaged with the first groove 5 to improve the stability of the connecting rod 4 when sliding.

[0031] Among them, the outer surface of the guide tube 6 is limited and slidably equipped with a lever 11, and the connecting rod 4 is in contact transmission with the lever 11; the lever 11 is in transmission with the filter screen 7 through the transmission component, and also has an elastic component between it and the guide tube 6.

[0032] Specifically, the elastic element includes a spring 13, a second groove 10 is opened in the guide tube 6, and the lever 11 is limited and slidably disposed in the second groove 10; a spring 13 is provided between the lever 11 and the second groove 10, one end of the spring 13 is fixedly connected to the lever 11, and the other end is fixedly connected to the inner wall of the second groove 10.

[0033] Specifically, the transmission component includes a second rack 12, a rotating shaft 8 is fixedly installed at the end of the filter screen 7, the other end of the rotating shaft 8 rotates through the filter box 1 and is fixedly sleeved with a second gear 16; the bottom of the lever 11 is fixedly installed with a second rack 12, and the second gear 16 meshes with the second rack 12 for transmission.

[0034] In addition, the inlet pipe 2 is fixedly installed on the top of the filter box 1.

[0035] Furthermore, a maintenance cover can be removably installed on the top of filter box 1.

[0036] Furthermore, a support leg is fixedly installed at the bottom of the filter box 1.

[0037] Working principle: When in use, urea liquid is injected into filter box 1 through inlet pipe 2.

[0038] The motor 15 is started, and its output shaft drives the first gear 9 to rotate in both directions. Since the first gear 9 meshes with the first rack 3 fixedly installed on the outer surface of the filter box 1, the rotation of the first gear 9 is converted into the connecting rod 4 sliding back and forth along the first slide groove 5. This causes the push rod 17, which is fixedly connected between the two connecting rods 4, to scrape back and forth on the inner wall of the bottom of the filter box 1, thereby pushing the sediment settled on the inner wall of the bottom of the filter box 1 towards the discharge ports 18 on both sides. Among them, the urine liquid is filtered through the filter screen 7 and discharged through the guide pipe 6, while the sediment is trapped on the filter screen 7.

[0039] When it is necessary to clean the sediment on the filter screen 7, the motor 15 controls the connecting rod 4 to move until it contacts the lever 11. The connecting rod 4 continues to move and pushes the lever 11, causing it to overcome the elastic force of the spring 13 and slide along the second slide groove 10. This causes the second rack 12 fixed at the bottom of the lever 11 to move and drive the second gear 16 meshing with it to rotate. The rotation of the second gear 16 will drive the rotating shaft 8 and the filter screen 7 fixed on it to rotate and flip.

[0040] At this time, cleaning solution is injected into the filter box 1 through the inlet pipe 2. The water flow can wash away the sediment on the flipped filter screen 7, and the sewage mixed with sediment is discharged through the guide pipe 6, thus completing the automatic cleaning of the filter screen 7. After cleaning, the pushing force on the connecting rod 4 is removed, and the lever 11 returns to its initial position under the reset action of the spring 13, preparing for the next cleaning.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filtration device for producing automotive urea, characterized in that, Includes a filter box (1), which has two discharge ports (18) symmetrically located on both sides of the bottom of the filter box (1); each discharge port (18) has an integrally fixed and connected guide pipe (6) at the bottom, and each guide pipe (6) has a rotating and sealed filter screen (7). Two connecting rods (4) are slidably arranged on the outer surface of the filter box (1), and the two connecting rods (4) are symmetrically arranged on both sides of the filter box (1); a push rod (17) is fixedly arranged between the two connecting rods (4), and the push rod (17) is in cooperation with the bottom inner wall of the filter box (1). The outer surface of the guide tube (6) is provided with a lever (11) for limiting sliding. The lever (11) is connected to the filter screen (7) through a transmission component and is also provided with an elastic component between it and the guide tube (6). The filter box (1) is provided with a sliding mechanism that acts on the connecting rod (4), and the connecting rod (4) and the lever (11) are in contact transmission cooperation.

2. The filtration device for producing automotive urea according to claim 1, characterized in that, The sliding mechanism includes a motor (15), the motor (15) is fixedly embedded in the connecting rod (4), and the output shaft of the motor (15) is fixedly provided with a first gear (9); the outer surface of the filter box (1) is fixedly provided with a first rack (3), and the first gear (9) meshes with the first rack (3) for transmission.

3. The filtration device for producing automotive urea according to claim 1, characterized in that, The filter box (1) has a first groove (5) on its outer surface, and a slider (14) is integrally fixed on the outer surface of the connecting rod (4). The slider (14) and the first groove (5) are in a limited sliding fit.

4. A filtration device for producing automotive urea according to claim 1, characterized in that, The elastic element includes a spring (13), a second groove (10) is opened in the guide tube (6), and a lever (11) is limited and slidably disposed in the second groove (10); a spring (13) is provided between the lever (11) and the second groove (10), one end of the spring (13) is fixedly connected to the lever (11), and the other end is fixedly connected to the inner wall of the second groove (10).

5. A filtration device for producing automotive urea according to claim 1, characterized in that, The transmission component includes a second rack (12), and a rotating shaft (8) is fixedly provided at the end of the filter screen (7). The other end of the rotating shaft (8) rotates through the filter box (1) and is fixedly fitted with a second gear (16). The bottom of the lever (11) is fixedly provided with a second rack (12), and the second gear (16) meshes with the second rack (12) for transmission.

6. A filtration device for producing automotive urea according to claim 1, characterized in that, The inlet pipe (2) is fixedly installed on the top of the filter box (1).

7. A filtration device for producing automotive urea according to claim 1, characterized in that, The top of the filter box (1) can be detachably fitted with an inspection cover.

8. A filtration device for producing automotive urea according to claim 1, characterized in that, The bottom of the filter box (1) is fixedly provided with support legs.

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