Urea tank integrated structure and vehicle

Abstract

The application belongs to the technical field of urea tank structure, and discloses a urea tank integrated structure and a vehicle. The urea tank integrated structure comprises a urea tank assembly, an assembly frame, a pipe bundle assembly and accessories. The urea tank assembly comprises a tank body and a first support. The tank body is installed on one side of the first support. The other side of the first support is connected with the side surface of the assembly frame. The assembly frame is fixed on the longitudinal beam of the vehicle frame. The lower end of the assembly frame is provided with the accessories. The top of the tank body is provided with a first interface. The accessories are provided with a second interface. The pipe bundle assembly connects the first interface and the second interface. The pipe bundle assembly is arranged between the assembly frame and the tank body. The problems that the production line assembly time is short in the prior art, the pipeline and the wire harness are easy to be worn by contacting the vehicle frame, and the maintenance is difficult are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of urea tank structures, and in particular to a urea tank integrated structure and a vehicle. Background Art

[0002] Large commercial vehicles are equipped with urea tanks, which decompose the urea solution in the tanks to purify harmful gases emitted by diesel engines into nitrogen and water.

[0003] Under the existing technology, the components that are connected to the urea tank include an external filter device, a water valve, a compressed gas filter and an air valve. The above components are connected to the urea tank through pipes or wiring harnesses. The components are scattered at various positions on the bottom of the frame. When assembling the above components on the assembly line, each component requires a worker to temporarily pull the pipes and wiring harnesses to connect the component to the corresponding position of the urea tank. Since the assembly time for each part on the assembly line is limited, in order to save time, workers will arrange the pipes and wiring harnesses in the most time-saving routing method, which will cause the wiring harness and pipes to contact the corners of the frame and then bend. The wiring harness and pipes will generate large stress during the contact process. Long-term work on commercial vehicles will cause wear on the wiring harness and pipes, reducing the reliability of the vehicle. At the same time, the above pipes and wiring harnesses are randomly arranged at the bottom of the frame, which is difficult to repair later and has a low degree of integration. Summary of the Invention

[0004] The purpose of the present invention is to provide a urea tank integrated structure and a vehicle to solve the problem that the assembly time of the production line is short in the prior art, resulting in easy wear and tear of the pipes, wiring harnesses and vehicle frames, and difficult maintenance.

[0005] To achieve this object, the present invention adopts the following technical solution: The present invention provides a urea tank integrated structure, including a urea tank assembly, an assembly frame, a pipe bundle assembly and accessories. The urea tank assembly includes a tank body and a first bracket. The tank body is installed on one side of the first bracket, and the other side of the first bracket is connected to the side of the assembly frame. The assembly frame is fixed to the frame longitudinal beam. The lower end of the assembly frame is installed with an accessory. A first interface is formed on the top of the tank body, and a second interface is formed in the accessory. The pipe bundle assembly connects the first interface and the second interface, and the pipe bundle assembly is arranged between the assembly frame and the tank body.

[0006] Preferably, the accessories include an external filter, a compressed gas filter and a water valve, the external filter, the water valve and the compressed gas filter are fastened to the second bracket by bolts, and the second bracket is fastened to the bottom of the assembly frame by bolts.

[0007] Preferably, the assembly frame includes a first main beam and a second main beam, the first main beam and the second main beam are parallel to each other, the length direction of the first main beam is parallel to the height direction of the tank body, and the cross-section of the first main beam and the second main beam is a U-shaped plate.

[0008] Preferably, a first through hole and a second through hole are respectively formed on two opposite sides of the U-shaped plate, a first docking hole is formed on the first bracket, a bolt passes through the first through hole and the first docking hole to fasten the assembly frame to the first bracket, and a bolt passes through the second through hole to fasten the assembly frame to the frame longitudinal beam; a fourth through hole is formed at the lower end of the U-shaped plate, a second docking hole is formed on the second bracket, and a bolt passes through the fourth through hole and the second docking hole to install the second bracket on the assembly frame.

[0009] Preferably, the tube bundle assembly includes an air pipe and a wiring harness, a wiring harness is installed between the first main beam and the second main beam, an air pipe is wrapped around the outside of the assembly frame, an upper pipe rack and a lower pipe rack are respectively installed at both ends of the assembly frame, the lower pipe rack is formed with a first limiting ring, and the upper pipe rack is formed with a second limiting ring, the air pipe is clamped in the first limiting ring and the second limiting ring, the first limiting ring faces the outside of the urea tank assembly, and the second limiting ring faces the inside of the urea tank assembly.

[0010] Preferably, a third through hole is provided between the first through hole and the second through hole of the U-shaped plate, an extension portion is formed on the ladder, a third docking hole is formed on a side of the extension portion close to the assembly frame, a bolt passes through the third through hole and the third docking hole and is fastened with a nut, and the extension portion is mounted on the upper side of the urea tank assembly.

[0011] A vehicle comprises the above-mentioned urea tank integrated structure. A frame longitudinal beam is formed on the vehicle, and the urea tank integrated structure is fastened to the frame longitudinal beam by bolts.

[0012] Beneficial effects: The integrated structure of the urea tank is divided into a urea tank assembly, an assembly frame, a tube bundle assembly and accessories. The above components can be pre-installed before production, which can save installation time during final assembly on the production line and reserve time for the arrangement and routing of the tube bundle assembly, so that a gap is formed between the routing of the tube bundle assembly and the frame to avoid direct contact and reduce wear. At the same time, since the accessories are installed in the same position, the tank body and the accessories are directly connected through the tube bundle assembly. All pipelines are integrated in the tube bundle assembly, so that the routing of the pipelines is more centralized and the subsequent maintenance and replacement is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main diagram of the integrated structure of the urea tank of the present invention;

[0014] Figure 2 This is a main diagram of the urea tank assembly of the present invention;

[0015] Figure 3 This is a main diagram of the assembly frame of the present invention;

[0016] Figure 4 This is a main diagram of the bicycle ladder of the present invention;

[0017] Figure 5 This is a main diagram of the lower pipe rack of the present invention;

[0018] Figure 6 It is the main body diagram of the upper pipeline rack of the present invention.

[0019] In the figure: 1. Urea tank assembly; 11. Tank body; 111. First interface; 12. First bracket; 121. First docking hole; 2. Assembly frame; 21. First main beam; 22. Second main beam; 23. First through hole; 24. Second through hole; 25. Third through hole; 26. Fourth through hole; 3. Pipe bundle assembly; 31. Air pipe; 32. Wiring harness; 4. Accessories; 41. Filter; 42. Compressed gas filter; 43. Water valve; 5. Lower pipeline frame; 51. First limiting ring; 6. Upper pipeline frame; 61. Second limiting ring; 7. Ladder; 71. Extension; 72. Third docking hole. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0021] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0022] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0024] Under the existing technology, since the external filter, compressed gas filter and water valve are distributed at various positions on the bottom of the frame longitudinal beam, when connecting the above parts to the urea tank on the processing production line, it is necessary to manually pull the pipeline to connect the parts to the urea tank. Due to the short connection time allocated, the pipeline will come into contact with the frame and other parts during the routing process, and then bend, which will cause abnormal wear of the pipeline over time. At the same time, the distribution of the pipelines at the bottom of the frame is relatively chaotic, making later maintenance more difficult.

[0025] In order to solve the above problems, Figures 1 to 6 As shown, the present invention provides a urea tank integrated structure, which includes a urea tank assembly 1, an assembly frame 2, a tube bundle assembly 3 and an accessory 4. The urea tank assembly 1 includes a tank body 11 and a first bracket 12. The tank body 11 is installed on one side of the first bracket 12, and the other side of the first bracket 12 is connected to the side of the assembly frame 2. The assembly frame 2 is fixed to the frame longitudinal beam. The accessory 4 is installed at the lower end of the assembly frame 2. A first interface 111 is formed on the top of the tank body 11, and a second interface is formed in the accessory 4. The tube bundle assembly 3 connects the first interface 111 and the second interface. The tube bundle assembly 3 is wound between the assembly frame 2 and the tank body 11. The area between the assembly frame 2 and the tank body 11 is used to route the tube bundle assembly 3, so that the volume of the urea tank integrated structure is smaller and the space utilization rate is higher. At the same time, the assembly frames 2 and the tank body 11 on both sides can protect the tube bundle assembly 3 to prevent abnormal wear of the tube bundle assembly 3.

[0026] Before connecting the urea tank assembly 1, the assembly frame 2, the pipe bundle assembly 3 and the accessories 4 to the vehicle frame, the urea tank assembly 1, the assembly frame 2, the pipe bundle assembly 3 and the accessories 4 can be pre-connected first, replacing the assembly line assembly steps. During the final assembly on the production line, there is no need to pull the pipeline separately to connect the accessories 4 to the urea tank one by one. Since all pipelines can be routed through the pipe bundle assembly 3 in a single pass, workers have enough time to route the pipe bundle assembly 3, bypassing the frame, and reducing the problem of interference between the pipeline and the frame. During the assembly of the production line, the tank body 11 and the first bracket 12 have been pre-connected. It is only necessary to connect the assembly frame 2 to the first bracket 12, and then install the accessories 4 at the bottom of the assembly frame 2. Finally, the accessories 4 and the pipe body are directly connected through the pipe The bundle assembly 3 is used for connection, which simplifies the installation steps. Since the accessories 4 are integrated on the second bracket, the bundle assembly 3 can be used uniformly to connect the accessories 4 and the tank body 11. The connection position of each group of accessories 4 and the tank body 11 is the same, which saves wiring time. Only a single pass through the bundle assembly 3 is required to complete the wiring on all the second brackets, reducing the number of times the air pipes 31 and the wire harnesses 32 in the pipe assembly are sorted out, reserving enough time for sorting out the wiring of the bundle assembly 3, avoiding abnormal wear of the bundle assembly 3 and the frame. At the same time, since the bundle assembly 3 integrates all the air pipes 31 and wire harnesses 32 that the tank body 11 needs to connect to the outside world, the arrangement of wires and pipes at the bottom of the frame is clearer and more intuitive, which is convenient for later maintenance and replacement.

[0027] The accessory 4 of the present invention includes an external filter 41, a compressed air filter 42 and a water valve 43. The external filter 41, the water valve 43 and the compressed air filter 42 are fastened to the second bracket by bolts, and the second bracket is fastened to the bottom of the assembly frame 2 by bolts.

[0028] The connection is made by bolts, which facilitates the fixation of the second bracket to the assembly frame 2, and then facilitates subsequent disassembly and connection, and also facilitates later maintenance. The external filter 41, compressed gas filter 42, water valve 43 and other components that need to be electrically connected or communicated with the tank body 11 are installed on the second bracket. A first interface 111 is provided on the top of the tank body 11 to connect with the second interfaces of the external filter 41, compressed gas filter 42 and water valve 43 of the second bracket, so that the pipelines leading out of the external filter 41, compressed gas filter 42 and water valve 43 have the same routing direction, which is convenient for later maintenance or direct replacement without spending time looking for pipelines.

[0029] The assembly frame 2 includes a first main beam 21 and a second main beam 22. The first main beam 21 and the second main beam 22 are parallel to each other. The length direction of the first main beam 21 is parallel to the height direction of the tank body 11. The cross-sections of the first main beam 21 and the second main beam 22 are U-shaped plates.

[0030] The accessories 4, the urea tank assembly 1 and the tube bundle assembly 3 are fixed on the first main beam 21 and the second main beam 22 which are bent into a U-shape by the plate, so that the assembly frame 2 is easy to process and reduces the processing difficulty. At the same time, it also needs to be connected to the vehicle frame. The integration of the above assemblies makes the urea tank integrated structure more integrated and occupies less space. The first main beam 21 and the second main beam 22 are connected by a connecting rod to meet the strength of the fixed urea tank integrated structure.

[0031] The U-shaped plate has a first through-hole 23 and a second through-hole 24 on opposite sides. The first bracket 12 has a first docking hole 121. Bolts pass through the first through-hole 23 and the first docking hole 121 to secure the assembly frame 2 to the first bracket 12, and bolts pass through the second through-hole 24 to secure the assembly frame 2 to the vehicle frame rail. Bolting secures the assembly frame 2 to the vehicle frame, facilitating maintenance and removal. The second bracket has a second docking hole. Bolts pass through the fourth through-hole 26 and the second docking hole to secure the second bracket to the assembly frame 2, also facilitating maintenance and removal. A third through-hole 25 is formed between the first through-hole 23 and the second through-hole 24 of the U-shaped plate. An extension 71 is formed on the ladder 7. A third docking hole 72 is formed on the side of the extension 71 proximal to the assembly frame 2. Bolts pass through the third through-hole 25 and the third docking hole 72 and are then secured with nuts. The extension 71 is mounted on the upper side of the urea tank assembly 1.

[0032] A step ladder 7 is also integrated on the upper side of the assembly frame 2. The step ladder 7, the first bracket 12, and the second bracket are fixed on three sides of the U-shaped plate. The step ladder 7, the first bracket 12 and the second bracket are fixed around the U-shaped plate, and the urea tank integrated structure achieves a higher degree of integration.

[0033] The tube bundle assembly 3 includes an air pipe 31 and a wiring harness 32. The wiring harness 32 is installed between the first main beam 21 and the second main beam 22. The wiring harness 32 is installed in the space between the first main beam 21 and the second main beam 22 and is separated from the pipeline, which is more intuitive during maintenance. At the same time, the first main beam 21 and the second main beam 22 protect the wiring harness 32 to avoid wear and tear caused by contact with the frame.

[0034] The air pipe 31 is wound outside the assembly frame 2, and the upper pipe frame 6 and the lower pipe frame 5 are respectively arranged at two ends of the assembly frame 2, the lower pipe frame 5 is formed with a first limiting ring 51, the upper pipe frame 6 is formed with a second limiting ring 61, the air pipe 31 is clamped in the first limiting ring 51 and the second limiting ring 61, the first limiting ring 51 faces the outside of the urea tank assembly 1, and the second limiting ring 61 faces the inside of the urea tank assembly 1. The air pipe 31 is wound from the outside of the bottom of the assembly frame 2 to the top end of the tank body 11, the first limiting ring 51 can fix the air pipe 31 outside the second main beam 22, then the air pipe 31 is wound between the assembly frame 2 and the tank body 11 through the second limiting ring 61, and is fixed through the first limiting ring 51 and the second limiting ring 61, so that the air pipe 31 is prevented from contacting the outside frame and is more stable.

[0035] The vehicle frame longitudinal beam is formed on the vehicle, and the urea tank integrated structure is fastened on the vehicle frame longitudinal beam through bolts, so that the urea tank integrated structure can be flexibly disassembled through the bolts.

[0036] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A urea tank integrated structure, characterized in that: The invention comprises a urea tank assembly (1), an assembly frame (2), a pipe bundle assembly (3) and an accessory (4); the urea tank assembly (1) comprises a tank body (11) and a first bracket (12); the tank body (11) is mounted on one side of the first bracket (12); the other side of the first bracket (12) is connected to the side of the assembly frame (2); the assembly frame (2) is fixed on the longitudinal beam of the vehicle frame; the lower end of the assembly frame (2) is mounted with an accessory (4); a first interface (111) is formed on the top of the tank body (11); a second interface is formed in the accessory (4); the pipe bundle assembly (3) connects the first interface (111) and the second interface; the pipe bundle assembly (3) is arranged between the assembly frame (2) and the tank body (11); The accessory (4) includes an external filter (41), a compressed gas filter (42) and a water valve (43), wherein the external filter (41), the water valve (43) and the compressed gas filter (42) are fastened to a second bracket by bolts, and the second bracket is fastened to the bottom of the assembly frame (2) by bolts; The assembly frame (2) comprises a first main beam (21) and a second main beam (22), the first main beam (21) and the second main beam (22) are parallel to each other, the length direction of the first main beam (21) is parallel to the height direction of the tank body (11), and the cross-sections of the first main beam (21) and the second main beam (22) are U-shaped plates; A first through hole (23) and a second through hole (24) are respectively formed on two opposite sides of the U-shaped plate; a first docking hole (121) is formed on the first bracket (12); a bolt passes through the first through hole (23) and the first docking hole (121) to fasten the assembly frame (2) to the first bracket (12); a bolt passes through the second through hole (24) to fasten the assembly frame (2) to the frame longitudinal beam; a fourth through hole (26) is formed at the lower end of the U-shaped plate; a second docking hole is formed on the second bracket; a bolt passes through the fourth through hole (26) and the second docking hole to mount the second bracket on the assembly frame (2); A third through hole (25) is provided between the first through hole (23) and the second through hole (24) of the U-shaped plate. An extension portion (71) is formed on the step ladder (7). A third docking hole (72) is formed on a side of the extension portion (71) close to the assembly frame (2). A bolt passes through the third through hole (25) and the third docking hole (72) and is fastened with a nut. The extension portion (71) is mounted on the upper side of the urea tank assembly (1).

2. The urea tank integrated structure according to claim 1, characterized in that: The tube bundle assembly (3) comprises an air pipe (31) and a wiring harness (32); the wiring harness (32) is installed between the first main beam (21) and the second main beam (22); the air pipe (31) is wound around the outer side of the assembly frame (2); an upper pipe frame (6) and a lower pipe frame (5) are respectively installed at both ends of the assembly frame (2); the lower pipe frame (5) is formed with a first limiting ring (51); the upper pipe frame (6) is formed with a second limiting ring (61); the air pipe (31) is clamped in the first limiting ring (51) and the second limiting ring (61); the first limiting ring (51) faces the outer side of the urea tank assembly (1), and the second limiting ring (61) faces the inner side of the urea tank assembly (1).

3. A vehicle, characterized in that: The urea tank integrated structure according to claim 1 is provided on the vehicle with a frame longitudinal beam, and the urea tank integrated structure is fastened to the frame longitudinal beam by bolts.

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