A device for detecting concentration of urea solution for vehicle

Abstract

One or more embodiments of the present specification provide a vehicle urea solution concentration detection device. During concentration detection, the urea solution to be detected is respectively injected into multiple detection cylinders, and the piston pad receives and seals the urea solution from the bottom. After the urea solution is detected by the concentration detector, the active plate rises to drive the piston pad to rise to push the urea solution to flow out from the upper end of the detection cylinder, wherein the outflowing urea solution falls onto the electronic control mechanism, and the first drive motor drives the start-up operation to drive the cylinder brush to rotate, and cleans the inner wall of the detection cylinder while the cleaning shaft rises, and the second drive motor drives the disc brush to clean the upper end surface of the piston pad that rises to the top of the cleaning cylinder, and cleans the residual urea solution on the detection cylinder and the piston pad to prevent affecting the detection results of the next batch or even multiple batches, thereby greatly improving the accuracy of the detection.

Description

Technical Field

[0001] One or more embodiments of the present specification are directed to the technical field of automotive urea production, and in particular to a device for detecting the concentration of an automotive urea solution. Background Art

[0002] Automotive urea, also known as diesel exhaust treatment fluid, can effectively reduce the emission of nitrogen oxides when used in automobiles. Existing automotive urea solutions need to meet a certain concentration to be effective.

[0003] When the existing vehicle urea solution concentration detection device performs sampling detection on the concentration of the vehicle urea solution, the urea solution is fully stirred and then detected by the concentration detector. However, the inventors have found that the existing vehicle urea solution concentration detection device uses a container when performing concentration detection, and the container will be tested again after use. The residual urea solution will affect the detection results of the next batch or even multiple batches, greatly reducing the accuracy of the detection. Summary of the invention

[0004] In view of this, an object of one or more embodiments of the present specification is to provide a device for detecting the concentration of a vehicle urea solution, so as to improve the accuracy of detecting the concentration of a vehicle urea solution.

[0005] Based on the above purpose, one or more embodiments of this specification provide a vehicle urea solution concentration detection device, characterized in that it includes:

[0006] A detection box, wherein a plurality of detection cylinders are fixed at the same height in the detection box, a piston pad that can slide along the detection cylinder is slid in each detection cylinder, a detection groove is opened on the upper end surface of the piston pad, and a concentration detector is arranged in the detection groove;

[0007] Active plate, the horizontal active plate is movably arranged in the detection box at the lower side of the detection cylinder, a first driving motor is arranged on the upper end surface of the active plate directly below each piston pad, a cleaning shaft is drivingly connected to the output shaft of each first driving motor, a cylinder brush is fixed to the side of the cleaning shaft along the length direction, and the top end of the cleaning shaft is rotatably connected to the lower end surface of the piston pad through a thrust bearing;

[0008] An upper top plate is fixed in the detection box and is located above the detection cylinder. A disc brush is rotatably arranged on the lower end surface of the upper top plate just above each detection cylinder. A second driving motor is also arranged on the upper top plate. The second driving motor is drivingly connected to the plurality of disc brushes.

[0009] Supporting sealing ring: a supporting sealing ring is fixed along the circumference of the bottom end of each detection cylinder;

[0010] An electric control mechanism is electrically connected to the first drive motor and the second drive motor, and the electric control mechanism is arranged on the outer side wall of one of the detection cylinders and is arranged higher than the supporting sealing ring;

[0011] When urea solution falls on the electric control mechanism, the electric control mechanism controls the first drive motor and the second drive motor to start and operate.

[0012] As an optional implementation, a plurality of electric telescopic rods are connected to the edge side of the upper end surface of the active plate, and the top ends of the electric telescopic rods are fixed to the top of the detection box.

[0013] As an optional embodiment, each of the disc brushes is provided with an axial hole penetrating up and down along the central axis direction of the disc brush, a shaft rod is movably arranged in the shaft hole, the bottom end of the shaft rod passes through the shaft hole and is fixed with a pushing block, a cylindrical connecting cavity is provided on one side of the shaft hole, a first gear ring is fixed on the upper side of the connecting cavity along the peripheral wall of the connecting cavity, a first gear is fixed on the side of the shaft rod in the connecting cavity, the top end of the shaft rod rotatably passes through the upper top plate and is fixed with a second gear, a first annular rotating seat is surrounded and fixed on the upper end surface of the upper top plate on the peripheral side of each second gear, a rotating cylinder is rotatably connected in the first rotating seat, A second gear ring is fixed on the upper side of the rotating cylinder along the circumferential wall of the rotating cylinder, a ring-shaped second rotating seat is fixed on the upper end surface of the piston pad just below the shaft, a rotating clamping seat is rotatably connected in the second rotating seat, the bottom end of the rotating clamping seat is rotatably connected to the second rotating seat, the top of the rotating clamping seat is provided with a groove that is adapted to and opposite to the pushing block, the second driving motor is arranged on the upper end surface of the upper top plate, and a plurality of transmission rollers are fixedly sleeved on the output shaft of the second driving motor along the height direction, the number of the transmission rollers is the same as the number of the detection cylinders, and the side of each transmission roller is transmission-connected to the corresponding outer side of the rotating cylinder through a transmission belt.

[0014] Specifically, the electric control mechanism includes:

[0015] A water receiving box, the water receiving box is arranged on the outer side of one of the detection tubes and is arranged higher than the supporting sealing ring, the top of the water receiving box is open and the bottom is provided with a first water leakage hole running through it, and the first electrical contact block and the second electrical contact block are respectively arranged in the water receiving box on both sides of the first water leakage hole;

[0016] A water leakage plate is slidingly and closely arranged on the bottom end surface of the water receiving box, a second water leakage hole is opened on the water leakage plate, a penetrating sliding hole is arranged on the side of the detection cylinder on the horizontal side of the water leakage plate, an accommodating groove is extended to the circumferential side at the end of the sliding hole in the detection cylinder, the bottom end of the accommodating groove is flush with the upper end surface of the supporting sealing ring, a water leakage rod along the length direction of the water leakage plate is arranged at the end of the water leakage plate facing the sliding hole, the water leakage rod is slidingly arranged in the sliding hole, a clamping block is fixed at the end of the water leakage rod in the accommodating groove, an inclined portion is arranged on the upper side of the end surface of the clamping block located in the detection cylinder, and the end surface of the clamping block facing away from the detection cylinder is elastically connected to the side of the accommodating groove through a plurality of push springs;

[0017] External power supply;

[0018] A control circuit is provided, wherein the control circuit is connected to an external power supply, a first drive motor, a second drive motor, a first electrical contact block and a second electrical contact block. When a urea solution is immersed between the first electrical contact block and the second electrical contact block, the control circuit is turned on, and the first drive motor and the second drive motor are powered by the external power supply and operate; when there is no urea solution immersed between the first electrical contact block and the second electrical contact block, the control circuit is turned off, and the first drive motor and the second drive motor are powered off and stop operating.

[0019] As an optional embodiment, the vehicle urea solution concentration detection device also includes a water supply pipe, which passes through the top of the detection box and is arranged above the detection cylinder. The side of the water supply pipe is connected to a plurality of water supply branches, and the number of the water supply branches is the same as the number of the detection cylinders. The port portion of each of the water supply branches is arranged above the corresponding side wall of the detection cylinder and is inclined toward the inside of the detection cylinder.

[0020] As an optional embodiment, a plurality of water grooves are opened on the upper end of the piston pad, and the bottom end of each water groove is connected to the side of the piston pad through a first water channel. A second water channel adapted to the position of the first water hole is opened on the inner wall of the upper end of the detection cylinder, and the other end of the second water channel is connected to the inner wall of the lower detection cylinder.

[0021] Specifically, a sliding bar along the height direction of the detection cylinder is fixed to the side of the piston pad, and a sliding groove along the height direction of the detection cylinder adapted to the sliding bar is opened on the inner wall of the detection cylinder, and the bottom end surface of the sliding groove is flush with the upper end surface of the supporting sealing ring.

[0022] As an optional implementation, the diameter of the cylinder brush is larger than the inner diameter of the detection cylinder.

[0023] As an optional implementation, a skirt plate inclined outwardly is fixed along the circumference at the bottom end of the outer side of each detection cylinder.

[0024] As an optional implementation, an inclined plate is provided at the bottom end of the detection box, a collecting port is provided at the bottom end of the detection box side wall at the tail end side of the inclined plate, and the outer end of the collecting port is connected to a collecting pipe.

[0025] From the above description, it can be seen that one or more embodiments of the present specification provide a vehicle urea solution concentration detection device. During concentration detection, the urea solution to be detected is respectively injected into multiple detection cylinders, and the piston pad receives and seals the urea solution from the bottom. After the urea solution is detected by the concentration detector, the active plate rises to drive the piston pad to rise to push the urea solution to flow out from the upper end of the detection cylinder, wherein the outflowing urea solution falls onto the electronic control mechanism, and the first drive motor drives the start-up operation to drive the cylinder brush to rotate, and cleans the inner wall of the detection cylinder while the cleaning shaft rises, and the second drive motor drives the disc brush to clean the upper end surface of the piston pad that rises to the top of the cleaning cylinder, and cleans the residual urea solution on the detection cylinder and the piston pad to prevent the detection results of the next batch or even multiple batches from being affected, thereby greatly improving the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate one or more embodiments of the present specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of a vehicle urea solution concentration detection device according to one or more embodiments of this specification;

[0028] Figure 2 One or more embodiments of this specification Figure 1 Schematic diagram of part A;

[0029] Figure 3 One or more embodiments of this specification Figure 1 Schematic diagram of part B;

[0030] Figure 4 A top view of the connection between the rotating cylinder and the second drive motor of one or more embodiments of the present specification;

[0031] Figure 5 A front view of a second drive motor according to one or more embodiments of this specification;

[0032] Figure 6 A schematic diagram of a vehicle urea solution concentration detection device during cleaning according to one or more embodiments of this specification;

[0033] Figure 7 One or more embodiments of this specification Figure 6 Schematic diagram of part C

[0034] Figure 8 One or more embodiments of this specification Figure 6 Schematic diagram of part D in the figure.

[0035] Among them, 1. detection box; 2. detection cylinder; 3. piston pad; 4. concentration detector; 5. active plate; 6. first drive motor; 7. cleaning shaft; 8. cylinder brush; 9. thrust bearing; 10. top plate; 11. disc brush; 12. second drive motor; 13. supporting seal ring; 14. electric telescopic rod; 15. shaft hole; 16. shaft rod; 17. push block; 18. connecting cavity; 19. first gear ring; 20. first gear; 21. second gear; 22. first rotating seat; 23. rotating cylinder; 24. second gear ring; 25. second rotating seat; 26. rotating card seat; 27. transmission roller; 28. transmission belt; 29. Water receiving box; 30, first water leakage hole; 31, first electrical contact block; 32, second electrical contact block; 33, water leakage plate; 34, second water leakage hole; 35, sliding hole; 36, accommodating groove; 37, water leakage rod; 38, positioning block; 39, pushing spring; 40, water supply pipe; 41, water supply branch pipe; 42, water trough; 43, first water channel; 44, second water channel; 45, skirt board; 46, inclined plate; 47, collecting pipe. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments.

[0037] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should be understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] Based on the above purpose, one or more embodiments of this specification provide a vehicle urea solution concentration detection device, characterized in that it includes:

[0039] A detection box 1, wherein a plurality of detection cylinders 2 are fixed at the same height in the detection box 1, a piston pad 3 is slidably disposed in each detection cylinder 2 and can slide along the detection cylinder 2, a detection groove is formed on the upper end surface of the piston pad 3, and a concentration detector 4 is disposed in the detection groove;

[0040] Active plate 5, the transverse active plate 5 is movably arranged in the detection box 1 at the lower side of the detection cylinder 2, a first driving motor 6 is arranged on the upper end surface of the active plate 5 directly below each piston pad 3, a cleaning shaft 7 is drivingly connected to the output shaft of each first driving motor 6, a cylinder brush 8 is fixed to the side of the cleaning shaft 7 along the length direction, and the top end of the cleaning shaft 7 is rotatably connected to the lower end surface of the piston pad 3 through a thrust bearing 9;

[0041] The upper top plate 10 is fixed in the detection box 1 and is located above the detection cylinder 2. A disc brush 11 is rotatably arranged on the lower end surface of the upper top plate 10 directly above each detection cylinder 2. A second driving motor 12 is also arranged on the upper top plate 10. The second driving motor 12 is transmission-connected to the plurality of disc brushes 11.

[0042] A supporting sealing ring 13 is fixed along the circumference of the bottom end of each detection cylinder 2;

[0043] An electric control mechanism is electrically connected to the first drive motor 6 and the second drive motor 12, and the electric control mechanism is arranged on the outer wall of one of the detection cylinders 2 and is arranged higher than the supporting sealing ring 13;

[0044] When urea solution falls on the electric control mechanism, the electric control mechanism controls the first drive motor 6 and the second drive motor 12 to start and operate.

[0045] One or more embodiments of the present specification provide a vehicle urea solution concentration detection device. During concentration detection, the urea solution to be detected is respectively injected into multiple detection cylinders 2, and the piston pad 3 receives and seals the urea solution from the bottom. After the urea solution is detected by the concentration detector 4, the active plate 5 rises to drive the piston pad 3 to rise to push the urea solution to flow out from the upper end of the detection cylinder 2, wherein the outflowing urea solution falls on the electronic control mechanism, and the first drive motor 6 drives the start-up operation to drive the drum brush 8 to rotate, and cleans the inner wall of the detection cylinder 2 while the cleaning shaft 7 rises, and the second drive motor 12 starts the operation to drive the disc brush 11 to clean the upper end surface of the piston pad 3 that rises to the top of the cleaning cylinder, and cleans the residual urea solution on the detection cylinder 2 and the piston pad 3 to prevent the detection results of the next batch or even multiple batches from being affected, thereby greatly improving the accuracy of the detection.

[0046] After cleaning, the urea solution in the detection cylinder 2 is emptied and cleaned, the active plate 5 falls back, driving the piston pad 3 to drop to the lower end of the detection cylinder 2, the urea solution in the electronic control mechanism is cleared, the first drive motor 6 and the second drive motor 12 stop driving, and the entire vehicle urea solution concentration detection is completed.

[0047] As an optional implementation, the edge side of the upper end surface of the active plate 5 is connected to a plurality of electric motions.

[0048] When the active plate 5 moves up and down, the electric telescopic rod 14 contracts and extends accordingly to drive the active plate 5 to move up and down.

[0049] As an optional embodiment, each of the disc brushes 11 is provided with an axial hole 15 that passes through the upper and lower parts along the central axis direction of the disc brush 11, and a shaft rod 16 is movably arranged in the shaft hole 15. The bottom end of the shaft rod 16 passes through the shaft hole 15 and is fixed with a pushing block 17. A cylindrical connecting cavity 18 is provided on one side of the shaft hole 15. A first gear ring 19 is fixed on the upper side of the connecting cavity 18 along the peripheral wall of the connecting cavity 18, and a first gear 20 is fixed on the side of the shaft rod 16 in the connecting cavity 18. The top end of the shaft rod 16 rotatably passes through the upper top plate 10 and is fixed with a second gear 21. An annular first rotating seat 22 is surrounded and fixed on the upper end surface of the upper top plate 10 on the peripheral side of each second gear 21, and a rotating cylinder is rotatably connected in the first rotating seat 22. 23, a second gear ring 24 is fixed on the upper side of the rotating cylinder 23 along the peripheral wall of the rotating cylinder 23, a ring-shaped second rotating seat 25 is fixed on the upper end surface of the piston pad 3 just below the shaft 16, a rotating holder 26 is rotatably connected in the second rotating seat 25, the bottom end of the rotating holder 26 is rotatably connected to the second rotating seat 25, the top of the rotating holder 26 is provided with a groove adapted to and facing the pushing block 17, the second driving motor 12 is arranged on the upper end surface of the upper top plate 10, a plurality of transmission rollers 27 are fixedly sleeved on the output shaft of the second driving motor 12 along the height direction, the number of the transmission rollers 27 is the same as the number of the detection cylinder 2, and the side of each transmission roller 27 is transmission-connected to the corresponding outer side of the rotating cylinder 23 through a transmission belt 28.

[0050] Specifically, the electric control mechanism includes:

[0051] A water receiving box 29, which is arranged on the outer side of one of the detection tubes 2 and higher than the supporting sealing ring 13, the top of the water receiving box 29 is open and the bottom is provided with a first water leakage hole 30, and the first electrical contact block 31 and the second electrical contact block 32 are respectively arranged in the water receiving box 29 on both sides of the first water leakage hole 30;

[0052] A water leakage plate 33 is slidably and closely arranged on the bottom end surface of the water receiving box 29. A second water leakage hole 34 is formed on the water leakage plate 33. A penetrating sliding hole 35 is formed on the side of the detection tube 2 on the horizontal side of the water leakage plate 33. The end of the sliding hole 35 in the detection tube 2 is extended to the circumferential side with a receiving groove 36. The bottom end of the receiving groove 36 is flush with the upper end surface of the supporting sealing ring 13. A water leakage rod 37 along the length direction of the water leakage plate 33 is formed at the end of the water leakage plate 33 facing the sliding hole 35. The water leakage rod 37 is slidably arranged in the sliding hole 35. A positioning block 38 is fixed to the end of the water leakage rod 37 in the receiving groove 36. The upper side of the end surface of the positioning block 38 located in the detection tube 2 is provided with an inclined portion. The end surface of the positioning block 38 facing away from the detection tube 2 is elastically connected to the side of the receiving groove 36 through a plurality of push springs 39.

[0053] External power supply;

[0054] A control circuit is provided, wherein the control circuit is connected to an external power supply, a first drive motor 6, a second drive motor 12, a first electrical contact block 31 and a second electrical contact block 32. When the first electrical contact block 31 and the second electrical contact block 32 are both immersed in a urea solution, the control circuit is turned on, and the first drive motor 6 and the second drive motor 12 are powered by the external power supply for operation; when the first electrical contact block 31 and the second electrical contact block 32 are not immersed in a urea solution, the control circuit is turned off, and the first drive motor 6 and the second drive motor 12 are powered off and stop operating.

[0055] As an optional embodiment, the vehicle urea solution concentration detection device also includes a water supply pipe 40, which passes through the top of the detection box 1 and is arranged above the detection cylinder 2. The side of the water supply pipe 40 is connected with a plurality of water supply branches 41. The number of the water supply branches 41 is the same as the number of the detection cylinders 2. The port portion of each of the water supply branches 41 is arranged above the side wall of the corresponding detection cylinder 2 and is inclined toward the inside of the detection cylinder 2.

[0056] As an optional embodiment, a plurality of water grooves 42 are formed on the upper end of the piston pad 3, and the bottom end of each water groove 42 is connected to the side of the piston pad 3 through a first water channel 43, and a second water channel 44 adapted to the position of the first water hole is formed on the inner wall of the upper end of the detection cylinder 2, and the other end of the second water channel 44 is connected to the inner wall of the detection cylinder 2 at the lower side.

[0057] Specifically, a sliding bar along the height direction of the detection cylinder 2 is fixed to the side of the piston pad 3, and a sliding groove along the height direction of the detection cylinder 2 adapted to the sliding bar is opened on the inner wall of the detection cylinder 2, and the bottom end surface of the sliding groove is flush with the upper end surface of the supporting sealing ring 13.

[0058] When the detection is completed, the active plate 5 rises driven by the electric telescopic rod 14, and the urea solution flowing out of the detection cylinder 2 falls into the water receiving box 29, and the conductive urea solution connects the first electrical contact 31 and the second electrical contact 32, so that the control circuit is turned on. When the active plate 5 rises, the first drive motor 6 drives the cylinder brush 8 to rotate to clean the inner wall of the detection cylinder 2; at the same time, the second drive motor 12 starts to drive the plurality of rotating cylinders 23 to rotate through the transmission belt 28. When the active plate 5 drives the piston pad 3 to rise to the upper end of the detection cylinder 2 and the upper ends of the first water channel 43 and the second water channel 44 are connected, the active plate 5 stops rising, and the water supply pipe 40 passes the cleaning water to the upper end of each piston pad 3 through the water supply branch pipe 41 for flushing. The cleaning water then flows into the water trough 42, and then successively flows through the first water channel 43 and the connected second water channel 44 to the inner wall of the detection cylinder 2 below, and the cylinder brush 8 Under the rotation of the detection cylinder 2, the inner wall of the detection cylinder 2 is fully cleaned, and the cleanliness is improved. At the same time, the rotating seat 26 on the piston pad 3 clamps the push block 17 through the groove, pushing the shaft 16 to move upward, so that the first gear 20 is clamped into the first gear ring 19 and keeps meshing, and the second gear 21 is clamped into the second gear ring 24. The rotating rotating cylinder 23 drives the disc brush 11 to rotate through the co-rotating shaft 16, and the disc brush 11 cleans the upper end surface of the piston pad 3 below. With the cooperation of cleaning water, the cleaning of the piston pad 3 is more thorough; when the active plate 5 drives the piston pad 3 to descend after cleaning, the water supply pipe 40 Stop the water supply, rotate the card seat 26 to disengage the push on the shaft 16, the shaft 16 drops under the action of gravity, so that the first gear 20 disengages from the meshing with the first gear ring 19, the second gear 21 disengages from the meshing with the second gear ring 24, and the disc brush 11 stops rotating to prevent the residual water on the disc brush 11 from being thrown around and wetting. When the piston pad 3 drops to stick to the supporting sealing ring 13, the inclined portion of the card block 38 pushes the leakage plate 33 toward the outside of the sliding hole 35, and the first leakage hole 30 is connected to the second leakage hole 34, so that the urea solution in the water receiving box 29 flows out, and the urea solution between the first electrical contact block 31 and the second electrical contact block 32 flows out, the electrical connection between the first electrical contact block 31 and the second electrical contact block 32 disappears, the control circuit is disconnected, the first drive motor 6 and the second drive motor 12 are powered off, and the detection and cleaning process is completed.

[0059] When the cleaning active plate 5 rises, the piston pad 3 is disengaged from the push on the positioning block 38, and the water leakage plate 33 is driven to move toward the inside of the detection tube 2 through the water leakage rod 37 under the push of the push spring 39, and the first water leakage hole 30 and the second water leakage hole 34 are disengaged, and the urea solution falling into the water receiving box 29 is retained between the first electrical contact block 31 and the second electrical contact block 32.

[0060] As an optional implementation, the diameter of the cylinder brush 8 is larger than the inner diameter of the detection cylinder 2 .

[0061] The diameter of the cylinder brush 8 is larger than the inner diameter of the detection cylinder 2, so that the cylinder brush 8 can fully frictionally contact with the inner wall of the detection cylinder 2 when rotating and cleaning in the detection cylinder 2, thereby improving the cleaning effect.

[0062] As an optional implementation, a skirt plate 45 inclined outwardly is fixed along the circumference at the bottom end of the outer side of each detection tube 2 .

[0063] When the dropped urea solution and cleaning water fall onto the skirt plate 45 , the urea solution and cleaning water flow down from the side edges due to the obstruction of the edges of the skirt plate 45 , and are prevented from falling onto the drum brush 8 and causing contamination.

[0064] As an optional implementation, an inclined plate 46 is provided at the bottom end of the detection box 1 , a collecting port is provided at the bottom end of the side wall of the detection box 1 at the tail end of the inclined plate 46 , and a collecting pipe 47 is connected to the outer end of the collecting port.

[0065] The fallen urea solution and clean water flow from the inclined plate 46 to the collecting pipe 47 for recovery.

[0066] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0067] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. In line with the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present specification as described above, which are not provided in detail for the sake of simplicity.

Claims

1. A vehicle urea solution concentration detection device, characterized in that: include: A detection box, wherein a plurality of detection cylinders are fixed at the same height in the detection box, a piston pad that can slide along the detection cylinder is slid in each detection cylinder, a detection groove is opened on the upper end surface of the piston pad, and a concentration detector is arranged in the detection groove; Active plate, the horizontal active plate is movably arranged in the detection box at the lower side of the detection cylinder, a first driving motor is arranged on the upper end surface of the active plate directly below each piston pad, a cleaning shaft is drivingly connected to the output shaft of each first driving motor, a cylinder brush is fixed to the side of the cleaning shaft along the length direction, and the top end of the cleaning shaft is rotatably connected to the lower end surface of the piston pad through a thrust bearing; An upper top plate is fixed in the detection box and is located above the detection cylinder. A disc brush is rotatably arranged on the lower end surface of the upper top plate just above each detection cylinder. A second driving motor is also arranged on the upper top plate. The second driving motor is drivingly connected to the plurality of disc brushes. Supporting sealing ring: a supporting sealing ring is fixed along the circumference of the bottom end of each detection cylinder; An electric control mechanism is electrically connected to the first drive motor and the second drive motor, and the electric control mechanism is arranged on the outer side wall of one of the detection cylinders and is arranged higher than the supporting sealing ring; Wherein, when urea solution falls on the electric control mechanism, the electric control mechanism controls the first drive motor and the second drive motor to start and operate; A plurality of electric telescopic rods are connected to the edge side of the upper end surface of the active plate, and the top ends of the electric telescopic rods are fixed to the top of the detection box; Each of the disc brushes is provided with an axial hole that passes through it from top to bottom along the central axis direction of the disc brush, a shaft rod is movably arranged in the shaft hole, the bottom end of the shaft rod passes through the shaft hole and is fixed with a pushing block, a cylindrical connecting cavity is provided on one side of the shaft hole, a first gear ring is fixed on the upper side of the connecting cavity along the peripheral wall of the connecting cavity, a first gear is fixed on the side of the shaft rod in the connecting cavity, the top end of the shaft rod rotatably passes through the upper top plate and is fixed with a second gear, an annular first rotating seat is surrounded and fixed on the upper end surface of the upper top plate on the peripheral side of each second gear, a rotating cylinder is rotatably connected to the first rotating seat, and a rotating cylinder is rotatably connected to the rotating cylinder. A second gear ring is fixed on the upper side along the circumferential wall of the rotating cylinder, a ring-shaped second rotating seat is fixed on the upper end surface of the piston pad just below the shaft rod, a rotating clamping seat is rotatably connected in the second rotating seat, the bottom end of the rotating clamping seat is rotatably connected to the second rotating seat, the top of the rotating clamping seat is provided with a groove adapted to and facing the pushing block, the second driving motor is arranged on the upper end surface of the upper top plate, a plurality of transmission rollers are fixedly sleeved on the output shaft of the second driving motor in the height direction, the number of the transmission rollers is the same as the number of the detection cylinders, and the side of each transmission roller is transmission-connected to the corresponding outer side of the rotating cylinder through a transmission belt; The electric control mechanism comprises: A water receiving box, the water receiving box is arranged on the outer side of one of the detection tubes and is arranged higher than the supporting sealing ring, the top of the water receiving box is open and the bottom is provided with a first water leakage hole running through it, and the first electrical contact block and the second electrical contact block are respectively arranged in the water receiving box on both sides of the first water leakage hole; A water leakage plate is slidingly and closely arranged on the bottom end surface of the water receiving box, a second water leakage hole is opened on the water leakage plate, a penetrating sliding hole is arranged on the side of the detection cylinder on the horizontal side of the water leakage plate, an accommodating groove is extended to the circumferential side at the end of the sliding hole in the detection cylinder, the bottom end of the accommodating groove is flush with the upper end surface of the supporting sealing ring, a water leakage rod along the length direction of the water leakage plate is arranged at the end of the water leakage plate facing the sliding hole, the water leakage rod is slidingly arranged in the sliding hole, a clamping block is fixed at the end of the water leakage rod in the accommodating groove, an inclined portion is arranged on the upper side of the end surface of the clamping block located in the detection cylinder, and the end surface of the clamping block facing away from the detection cylinder is elastically connected to the side of the accommodating groove through a plurality of push springs; External power supply; A control circuit is provided, wherein the control circuit is connected to an external power supply, a first drive motor, a second drive motor, a first electrical contact block and a second electrical contact block. When a urea solution is immersed between the first electrical contact block and the second electrical contact block, the control circuit is turned on, and the first drive motor and the second drive motor are powered by the external power supply and operate; when there is no urea solution immersed between the first electrical contact block and the second electrical contact block, the control circuit is turned off, and the first drive motor and the second drive motor are powered off and stop operating.

2. The vehicle urea solution concentration detection device according to claim 1, characterized in that: The vehicle urea solution concentration detection device also includes a water supply pipe, which passes through the top of the detection box and is arranged above the detection cylinder. The side of the water supply pipe is connected with a plurality of water supply branches, and the number of the water supply branches is the same as the number of the detection cylinders. The port portion of each water supply branch is arranged above the corresponding side wall of the detection cylinder and is inclined toward the inside of the detection cylinder.

3. The vehicle urea solution concentration detection device according to claim 1, characterized in that: The upper end of the piston pad is provided with a plurality of water grooves, the bottom end of each water groove is connected to the side of the piston pad through a first water channel, the inner wall of the upper end of the detection cylinder is provided with a second water channel adapted to the position of the first water channel, the other end of the second water channel is connected to the inner wall of the lower detection cylinder.

4. The vehicle urea solution concentration detection device according to claim 1, characterized in that: The diameter of the cylinder brush is larger than the inner diameter of the detection cylinder.

5. The vehicle urea solution concentration detection device according to claim 1, characterized in that: A skirt plate inclined outwardly is fixed along the circumference at the bottom end of the outer side of each detection cylinder.

6. The vehicle urea solution concentration detection device according to claim 1, characterized in that: An inclined plate is arranged at the bottom end of the detection box, a collecting port is opened at the bottom end of the detection box side wall at the tail end side of the inclined plate, and the outer end of the collecting port is connected with a collecting pipe.

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