Injection pipe capable of improving mixing degree

Abstract

The utility model discloses an injection pipe capable of improving mixing degree, which comprises a mixing bottle body, and an injection pipe and a feeding pipe are respectively arranged above and below the mixing bottle body; the mixing mechanism is fixedly installed in the mixing bottle body and used for improving the mixing degree of internal urea, the mixing mechanism comprises fixing plates fixedly installed on the left side and the right side of the inner wall of the mixing bottle body, and the ends, close to each other, of the two fixing plates are fixedly connected with fixing rods; the bottom ends of the two fixing rods are jointly and fixedly connected with a bottom plate, a second sleeve is fixedly arranged in the middle of the top end of the bottom plate, a first sleeve is slidably arranged in the second sleeve in a penetrating mode, a reset spring is fixedly connected between the first sleeve and the second sleeve, and a lifting plate is fixedly connected to the top end of the first sleeve. Compared with the prior art, the mixing degree and the air tightness of the injection pipe can be improved, and meanwhile, workers can conveniently check the mixing mechanism when needed.

Description

Technical Field

[0001] The utility model relates to the field of injection pipes, in particular to an injection pipe which can improve the mixing degree and air density, and is convenient for workers to inspect the mixing mechanism at the same time. Background Technique

[0002] The injection pipe is usually used in the exhaust gas treatment system of diesel vehicles to reduce nitrogen oxide emissions. The reduction of nitrogen oxide emissions is inseparable from the injection of urea. Spraying an appropriate amount of urea at the right time to participate in the conversion reaction is the key to meeting the nitrogen oxide emission standards.

[0003] At present, the mixing effect of urea of most injection pipes is relatively poor, which reduces the working efficiency, or has the effect of improving the mixing degree, but it is not convenient for workers to overhaul it, reducing the practicability. Based on the above problems, the utility model provides an injection pipe with improved mixing degree. Content of the Utility Model

[0004] The purpose of the utility model is to provide an injection pipe with improved mixing degree to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an injection pipe with improved mixing degree, including,

[0006] A mixing bottle body, with an injection pipe and a feed pipe respectively arranged above and below the mixing bottle body;

[0007] A mixing mechanism, which is fixedly installed inside the mixing bottle body and is used to improve the mixing degree of the internal urea. The mixing mechanism includes fixing plates fixedly installed on the left and right sides of the inner wall of the mixing bottle body. One end of the two fixing plates close to each other is fixedly connected with a fixing rod. The bottom ends of the two fixing rods are fixedly connected with a bottom plate together. The middle of the top end of the bottom plate is fixedly provided with a second sleeve. A first sleeve is slidably penetrated inside the second sleeve. A return spring is fixedly connected between the first sleeve and the second sleeve. The top end of the first sleeve is fixedly connected with a lifting plate. Symmetrically distributed hinge seats are fixedly arranged on both sides of the bottom end of the lifting plate and located inside the first sleeve. A straight rod is rotatably connected to the hinge seat. The bottom ends of the two straight rods are both hinged with a U-shaped block. Sliding grooves are opened on both sides of the inner wall of the U-shaped block. A slider is slidably connected inside the sliding groove. One end of the slider close to the fixing rod is fixedly connected with the fixing rod. One end of the two U-shaped blocks away from the second sleeve is fixedly connected with a push plate. The lifting plate is located directly below the feed port of the mixing bottle body. A second pressure sensor is fixedly arranged on one side of the mixing bottle body. The discharge end of the mixing bottle body is fixedly connected with a pump body. A first pressure sensor is fixedly arranged on the pump body.

[0008] Furthermore, telescopic rods are fixedly arranged on both the front and rear sides of the bottom end of the lifting plate within the first sleeve, and the bottom ends of the telescopic rods are fixedly connected to the top end of the bottom plate.

[0009] Furthermore, a threaded pipe is fixedly connected to the top feeding port of the mixing bottle body, and the feeding end of the threaded pipe is fixedly connected to the bottom end of the injection pipe.

[0010] Furthermore, the discharging end of the pump body is fixedly connected to a curved pipe, and the discharging end of the curved pipe is fixedly connected to the top end of the feeding pipe.

[0011] Furthermore, the mixing bottle body is formed by screwing two bottle bodies together, and a waterproof sealing ring is provided at the connection of the mixing bottle body.

[0012] Furthermore, the injection pipe, the threaded pipe, the curved pipe, and the feeding pipe are all made of polypropylene material.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. After urea enters the mixing bottle body and the pump body is not started, an impact force will be generated on the lifting plate, causing it to press down, deforming the return spring. The two straight rods hinged to the lower part of the lifting plate will also change their angles. Due to the limiting effect of the chute, the U-shaped block hinged to the lifting plate will be pushed to move left and right, and at the same time, the two push plates will be driven to move left and right. Then, due to the characteristics of the return spring, an upward elastic force will be generated to push the first sleeve and the lifting plate. Thus, the urea entering the mixing bottle body is mixed by the two push plates. The first pressure sensor and the second pressure sensor are electrically connected. When the internal pressure reaches the critical point, the pump body will be started to pump out the internal urea, improving the mixing degree of the overall device;

[0015] 2. By providing a mixing bottle body, which is formed by screwing two bottle bodies together, it is convenient for the staff to open the mixing bottle body when needed to check the internal mixing mechanism. At the same time, a waterproof sealing ring is provided to improve the airtightness of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a three-dimensional structural sectional view of the present utility model;

[0018] Figure 3 is a three-dimensional structural schematic diagram of the mixing mechanism of the present utility model;

[0019] Figure 4 is the present utility model Figure 3 The enlarged view at A in.

[0020] In the figure: 1. Injection pipe; 2. Threaded pipe; 3. Mixing bottle body; 4. Pump body; 5. Curved pipe; 6. Feed pipe; 7. First pressure sensor; 8. Second pressure sensor; 9. Lifting plate; 10. Mixing mechanism; 11. First sleeve; 12. Hinge seat; 13. Straight rod; 14. Push plate; 15. Return spring; 16. Second sleeve; 17. Bottom plate; 18. U-shaped block; 19. Fixed plate; 20. Telescopic rod; 21. Slide block; 22. Fixed rod; 23. Chute. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1: Please refer to Figures 1 to 4 , an injection pipe with improved mixing degree, including,

[0023] The mixing bottle body 3 is provided with an injection pipe 1 and a feed pipe 6 above and below the mixing bottle body 3 respectively, providing conditions for improving the mixing degree of urea.

[0024] The mixing mechanism 10 is fixedly installed inside the mixing bottle body 3 for improving the mixing degree of the internal urea. The mixing mechanism 10 includes fixed plates 19 fixedly installed on the left and right sides of the inner wall of the mixing bottle body 3. One end of the two fixed plates 19 close to each other is fixedly connected with a fixed rod 22. The bottom ends of the two fixed rods 22 are fixedly connected together with a bottom plate 17. The middle of the top end of the bottom plate 17 is fixedly provided with a second sleeve 16. A first sleeve 11 is slidably penetrated inside the second sleeve 16. A return spring 15 is fixedly connected between the first sleeve 11 and the second sleeve 16. The top end of the first sleeve 11 is fixedly connected with a lifting plate 9. Symmetrically distributed hinge seats 12 are fixedly provided on both sides of the bottom end of the lifting plate 9 located inside the first sleeve 11. A straight rod 13 is rotatably connected to the hinge seat 12. The bottom ends of the two straight rods 13 are both hinged with a U-shaped block 18. Chutes 23 are opened on both sides of the inner wall of the U-shaped block 18. A slide block 21 is slidably connected inside the chute 23. One end of the slide block 21 close to the fixed rod 22 is fixedly connected with the fixed rod 22. One end of the two U-shaped blocks 18 away from the second sleeve 16 is fixedly connected with a push plate 14. The lifting plate 9 is located directly below the feed port of the mixing bottle body 3. A second pressure sensor 8 is fixedly provided on one side of the mixing bottle body 3. The discharge end of the mixing bottle body 3 is fixedly connected with a pump body 4. A first pressure sensor 7 is fixedly provided on the pump body 4.

[0025] With the above characteristics, after the urea enters the mixing bottle body 3 and the pump body 4 is not started, an impact force will be generated on the lifting plate 9, causing it to press down, deforming the return spring 15. The two straight rods 13 hinged to the lower part of the lifting plate 9 will also change their angles. Due to the limiting effect of the chute 23, the U-shaped block 18 hinged to the lifting plate 9 will be pushed to move left and right, and at the same time, the two push plates 14 will be driven to move left and right. Then, due to the characteristics of the return spring 15, an upward elastic force will be generated to push the first sleeve 11 and the lifting plate 9. Thus, the urea entering the mixing bottle body 3 is mixed by the two push plates 14. The first pressure sensor 7 and the second pressure sensor 8 are electrically connected. When the internal pressure reaches the critical point, the pump body 4 will be started to pump out the internal urea, improving the mixing degree of the overall device.

[0026] In the present utility model, telescopic rods 20 are fixedly arranged on both the front and rear sides of the bottom end of the lifting plate 9 and located inside the first sleeve 11. The bottom ends of the telescopic rods 20 are fixedly connected to the top end of the bottom plate 17. The arrangement of the two telescopic rods 20 can improve the stability of the mixing mechanism 10.

[0027] In the present utility model, a threaded pipe 2 is fixedly connected to the top feed port of the mixing bottle body 3. The feed end of the threaded pipe 2 is fixedly connected to the bottom end of the injection pipe 1. The discharge end of the pump body 4 is fixedly connected to a curved pipe 5. The discharge end of the curved pipe 5 is fixedly connected to the top end of the feed pipe 6. The arrangement of the threaded pipe 2 and the curved pipe 5 can increase the turbulence degree of the urea, thereby improving its mixing degree.

[0028] In the present utility model, the mixing bottle body 3 is formed by screwing two bottle bodies together, and a waterproof sealing ring is arranged at the connection of the mixing bottle body 3. The mixing bottle body 3 being formed by screwing two bottle bodies together facilitates the staff to open the mixing bottle body 3 when needed to check the internal mixing mechanism 10. At the same time, the arrangement of the waterproof sealing ring can improve the airtightness of the overall device.

[0029] In the present utility model, the injection pipe 1, the threaded pipe 2, the curved pipe 5, and the feed pipe 6 are all made of polypropylene material. Using polypropylene material can improve the corrosion resistance and airtightness.

[0030] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. An injection pipe with improved mixing degree, characterized in that: Including, a mixing bottle body (3), with a spray pipe (1) and a feed pipe (6) respectively arranged above and below the mixing bottle body (3); a mixing mechanism (10), the mixing mechanism (10) is fixedly installed inside the mixing bottle body (3) for improving the mixing degree of internal urea. The mixing mechanism (10) includes fixing plates (19) fixedly installed on the left and right sides of the inner wall of the mixing bottle body (3). One end of each of the two fixing plates (19) close to each other is fixedly connected with a fixing rod (22). The bottom ends of the two fixing rods (22) are jointly fixedly connected with a bottom plate (17). The middle of the top end of the bottom plate (17) is fixedly provided with a second sleeve (16). A first sleeve (11) is slidably penetrated inside the second sleeve (16). A return spring (15) is fixedly connected between the first sleeve (11) and the second sleeve (16). The top end of the first sleeve (11) is fixedly connected with a lifting plate (9). Symmetrically distributed hinge seats (12) are fixedly arranged on both sides of the bottom end of the lifting plate (9) located inside the first sleeve (11). A straight rod (13) is rotatably connected to the hinge seat (12). The bottom ends of the two straight rods (13) are both hinged with a U-shaped block (18). Slide grooves (23) are opened on both sides of the inner wall of the U-shaped block (18). A slider (21) is slidably connected inside the slide groove (23). One end of the slider (21) close to the fixing rod (22) is fixedly connected with the fixing rod (22). One end of each of the two U-shaped blocks (18) away from the second sleeve (16) is fixedly connected with a push plate (14). The lifting plate (9) is located directly below the feed port of the mixing bottle body (3). A second pressure sensor (8) is fixedly arranged on one side of the mixing bottle body (3). The discharge end of the mixing bottle body (3) is fixedly connected with a pump body (4). A first pressure sensor (7) is fixedly arranged on the pump body (4).

2. The injection pipe with improved mixing degree according to claim 1, characterized in that: On both the front and back sides of the first sleeve (11) at the bottom end of the lifting plate (9), telescopic rods (20) are fixedly arranged. The bottom ends of the telescopic rods (20) are fixedly connected with the top end of the bottom plate (17).

3. The injection pipe with improved mixing degree according to claim 1, characterized in that: The top feed port of the mixing bottle body (3) is fixedly connected with a threaded pipe (2). The feed end of the threaded pipe (2) is fixedly connected with the bottom end of the spray pipe (1).

4. The injection pipe with improved mixing degree according to claim 1, characterized in that: The discharge end of the pump body (4) is fixedly connected with a curved pipe (5). The discharge end of the curved pipe (5) is fixedly connected with the top end of the feed pipe (6).

5. A jet pipe with improved mixing degree according to claim 1, characterized in that: The mixing bottle body (3) is formed by screwing two bottle bodies together, and a waterproof sealing ring is arranged at the connection of the mixing bottle body (3).

6. The injection pipe with improved mixing degree according to claim 1, characterized in that: The spray pipe (1), the threaded pipe (2), the curved pipe (5), and the feed pipe (6) are all made of polypropylene material.

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