CN219711645U

CN219711645U - Urea tank fixing structure, urea tank assembly device and vehicle

Info

Publication number: CN219711645U
Application number: CN202321112308.6U
Authority: CN
Inventors: 侯甲成; 赵紫薇
Original assignee: Dongfeng Trucks Co ltd
Current assignee: Dongfeng Trucks Co ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-09-19
Anticipated expiration: 2033-05-10

Abstract

The utility model discloses a urea tank fixing structure, a urea tank assembly device and a vehicle, and relates to the technical field of automobile parts; the vertical hoop assembly is connected to the base and is used for being annularly arranged on the outer side wall of the urea tank; at least one transverse hoop, both ends of which are connected with the vertical hoop component; the fixed bolster, it locates the bottom surface of base for with frame connection. In a second aspect, the urea tank assembly device includes the urea tank fixing structure described above. In a third aspect, the vehicle includes the urea tank assembly apparatus described above. Through setting up the base and with the vertical staple bolt subassembly and the horizontal band of base connection to can increase or reduce the quantity of vertical staple bolt subassembly and horizontal band according to the size of urea jar, improve commonality and simple structure, it is effectual to the fixed of urea jar, set up the fixed bolster, make the urea jar just can fix on the frame through other installing support not need.

Description

Urea tank fixing structure, urea tank assembly device and vehicle

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to a urea tank fixing structure, a urea tank assembly device and a vehicle.

Background

The urea supply system is positioned in the automobile aftertreatment system and is used for reducing the content of harmful nitrogen oxides in automobile exhaust. When the urea system works, urea is quantitatively injected into the post-processor through the urea pump, so that harmless nitrogen and water are generated.

The existing urea tank assembly is fixed on a frame by bending and welding square steel Liang Fumian, so that the arrangement space of the whole vehicle is greatly influenced, and the whole vehicle is supported by fixing brackets on the frame, so that the weight and cost of the whole vehicle are increased.

The prior art discloses a vehicle urea tank installing support assembly, including urea tank base and staple bolt, urea tank base contains two at least looks vertically side, and every side is rectangular frame construction, and the staple bolt both ends are fixed respectively on the different edges of urea tank base frame, and the urea tank is fixed in the space that is enclosed by urea tank base and staple bolt. Although the utility model has high overall strength and rigidity, it still has the following drawbacks: in the utility model, each side surface of the base is of a rectangular frame structure, so that the design structure is complex, the occupied space is large, and the anchor ear is fixed on different edges of the base frame, thereby reducing the reliability of the urea tank installation; on the other hand, this automobile-used urea jar installing support assembly commonality is poor, can't adapt to the urea jar of different volume sizes, and need just can fix on the frame through other installing support.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a urea tank fixing structure, a urea tank assembly device and a vehicle, so as to solve the problems that the urea tank fixing structure is complex, the universality is poor and the urea tank cannot be directly installed on a frame.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, the present utility model provides a urea tank securing structure comprising:

a base for supporting the urea tank;

the vertical hoop assembly is connected to the base and is used for being annularly arranged on the outer side wall of the urea tank;

at least one transverse hoop, both ends of which are connected with the vertical hoop component;

the fixed bracket is arranged on the bottom surface of the base and is used for being connected with the frame.

In some optional embodiments, two vertical hoop assemblies are spaced apart, and each vertical hoop assembly includes:

two vertical support rods arranged at intervals, wherein the uniform ends are vertically connected to the base and are respectively adhered to two opposite outer side walls of the urea tank;

and two ends of the vertical hoops are respectively connected with the other ends of the two vertical support rods far away from the base and are used for being matched with the vertical support rods to fix the urea tank.

In some optional embodiments, the vertical band is provided with an avoiding port for avoiding the filling port of the urea tank.

In some alternative embodiments, the fixing bracket includes:

a first fixing bracket connected to the base through an extension portion, the first fixing bracket being positioned on a side of the base away from the urea tank;

and the second fixing bracket is connected to one side of the base, which is far away from the urea tank, and is arranged at intervals with the first fixing bracket.

In some alternative embodiments, the first fixing bracket includes:

a top plate connected to the extension portion and located on a side of the base away from the urea tank, the top plate being parallel to the base and overlapping a projected portion of the base in a vehicle height direction;

the first side plate is vertically connected to one side of the top plate away from the base and is flush with the outer edge of the base;

and the second side plate is connected between the top plate and the first side plate and is flush with the outer edge of the base, and the width of the second side plate gradually decreases from the direction close to the first side plate to the direction far away from the first side plate.

In some alternative embodiments, the second fixing bracket includes:

an L-shaped top plate connected to the top angle of the base relative to the first side plate, wherein the corner of the L-shaped top plate is overlapped with the top angle of the base;

and the side plate is vertically connected with the L-shaped top plate and is flush with the outer edge of the base.

In some alternative embodiments, the base is provided with a plurality of lightening holes.

In a second aspect, the present utility model also provides a urea tank assembly device, comprising:

a urea tank;

a base for supporting the urea tank;

at least one vertical hoop component which is vertically connected with the base and is annularly arranged on the outer side wall of the urea tank;

In some alternative embodiments, a plurality of limit grooves for placing the transverse bands are formed on the outer side wall of the urea tank.

In a third aspect, the utility model also provides a vehicle comprising the urea tank assembly device.

Compared with the prior art, the utility model has the advantages that: through setting up base and the vertical staple bolt subassembly and the horizontal strap of being connected with the base to can increase or reduce the quantity of vertical staple bolt subassembly and horizontal strap according to the size of urea jar, improve the commonality, and simple structure, it is effectual to the fixation of urea jar; the urea tank is convenient to fix on the frame by arranging the fixing support, and can be fixed on the frame without other mounting supports.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a urea tank fixing structure according to the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

fig. 4 is a bottom view of fig. 1.

In the figure: 1. a base; 11. an extension; 2. a vertical hoop assembly; 21. a vertical support rod; 22. a vertical strap; 3. a transverse band; 4. a fixed bracket; 41. a first fixing bracket; 411. a top plate; 412. a first side plate; 413. a second side plate; 42. a second fixing bracket; 421. an L-shaped top plate; 422. a side plate; 5. a urea tank; 51. and a filling port.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiments of a urea tank securing structure, a urea tank assembly device, and a vehicle according to the present utility model are described in further detail below with reference to the accompanying drawings.

In a first aspect, as shown in fig. 1 to 4, the present utility model provides a urea tank fixing structure, which includes a base 1 for supporting a urea tank 5, a vertical hoop assembly 2 connected with the base 1, and a transverse hoop 3 connected with the vertical hoop assembly 2, wherein the urea tank 5 is bound and fixed on the base 1 through the vertical hoop assembly 2 and the transverse hoop 3, and then is connected to a vehicle frame through a fixing bracket 4.

Specifically, the vertical hoop assembly 2 is provided with at least one, is connected to the base 1, and is used for being annularly arranged on the outer side wall of the urea tank 5; the transverse hoop 3 is provided with at least one, and both ends of the transverse hoop are connected with the vertical hoop assembly 2; the fixed bracket 4 is arranged on the bottom surface of the base 1 and is used for being connected with a frame.

It will be appreciated that the number of vertical hoops 2 and horizontal hoops 3 is determined according to the size of the urea tank 5. The embodiment of fig. 1 illustrates that two groups of vertical hoop assemblies 2 are arranged at intervals and are annularly arranged on the outer side wall of the urea tank 5, so that the relative positions of the urea tank 5 in the vertical direction are fixed by matching with the base 1; the transverse hoops 3 are provided with two, and two ends of each transverse hoop 3 are connected with a group of vertical hoop assemblies 2, so that the relative positions of the urea tank 5 in the horizontal direction are fixed by matching with the vertical hoop assemblies 2.

Because the vertical hoop assembly 2 and the transverse hoop 3 can be determined by matching with the size of the urea tank 5, different urea tanks 5 can be flexibly adapted, and the urea tank is suitable for different vehicles. And the structure is simple, and the installation and the modularized design are convenient.

In some alternative embodiments, two vertical hoop assemblies 2 are arranged at intervals, each vertical hoop assembly 2 includes two vertical support rods 21 arranged at intervals, and a uniform end of each vertical support rod 21 is vertically connected to the base 1 and is respectively used for being attached to two opposite outer side walls of the urea tank 5; two ends of the vertical hoops 22 are respectively connected to the other ends of the two vertical support rods 21 far away from the base 1, and are used for fixing the urea tank 5 in cooperation with the vertical support rods 21.

It will be appreciated that the four vertical support rods 21 of the two vertical hoop assemblies 2 are arranged in a rectangular shape, each vertical support rod 21 is connected with the base 1 by a bolt, and the height of the vertical support rod 21 and the length of the vertical hoop 22 are changed so as to adapt to urea tanks 5 of different gears.

In this example, in order to make the overall structure meet the light design requirement, the cross section of the vertical support rod 21 is set to be a U shape, and the bottom surface of the U shape is attached to the side wall of the urea tank 5.

Preferably, the height of the vertical supporting rod 21 is equal to the height of the side wall of the urea tank 5 along the vehicle height direction, and the vertical hoops 22 are attached to the top surface of the urea tank 5 and the bending transition part of the top surface and the side wall.

The vertical supporting rod 21 is formed by welding sheet metal bending parts, and the vertical hoops 22 and the horizontal hoops 3 are connected with the vertical supporting rod 21 through bolts and nuts. And the vertical bands 22 and the horizontal bands 3 are each of a flat band-like structure having a set width and a set length, so that the stability of the urea tank 5 is improved by increasing the friction with the side wall of the urea tank 5.

It can be understood that a plurality of mounting holes are formed in the vertical support rod 21 along the length direction, so that the vertical support rod 21 is generalized and shared through different mounting holes in the vertical hoops 22 and the vertical support rod 21, and mass production is facilitated to reduce cost.

In this example, the vertical support bar 21 is vertically connected to the base 1, and the transverse band 3 is vertical to the vertical support bar 21.

Preferably, rubber pads are arranged on one sides of the vertical support rods 21, the vertical hoops 22 and the transverse hoops 3, which are close to the urea tank 5, so as to protect the urea tank 5, prevent the urea tank 5 from being worn and buffer.

In some alternative embodiments, the base 1 is provided with a plurality of lightening holes.

Because the base 1 mainly plays a role in supporting the urea tank 5, the accumulated rainwater can be removed in time to prevent the base 1 from rusting for the light design requirement, and a plurality of lightening holes are formed in the base 1.

In some alternative embodiments, the vertical band 22 is provided with a vent for venting the filler opening 51 of the urea tank 5.

It will be appreciated that a liquid outlet is provided in the urea tank 5 from the urea solution pump in the urea tank to the urea pump, so that urea is transferred to the urea nozzle via the urea pipe. Therefore, in order to avoid interference between the vertical band 22 and the filler 51 of the urea tank 5, the vertical band 22 is provided with a relief port.

Here, the vertical band 22 is clamped with the filling port 51 through the avoiding port, so that the relative position between the urea tank 5 and the vertical band 22 can be further fixed, and the stability of the urea tank 5 is improved.

In some alternative embodiments, the fixing bracket 4 includes a first fixing bracket 41 and a second fixing bracket 42.

Specifically, the first fixing bracket 41 is connected to the base 1 through the extension portion 11, such that the first fixing bracket 41 is located at a side of the base 1 away from the urea tank 5; the second fixing bracket 42 is connected to a side of the base 1 remote from the urea tank 5 and is spaced apart from the first fixing bracket 41.

It will be appreciated that the mounting bracket 4 is adapted to be coupled to a vehicle frame and therefore that the first mounting bracket 41 and the second mounting bracket 42 are provided for mating with the vehicle frame and other structures.

In this example, the first fixing bracket 41 and the second fixing bracket 42 are respectively located at two vertex angles on the same side of the base 1.

Further, the first fixing bracket 41 includes a top plate 411, a first side plate 412, and a second side plate 413. A top plate 411 is connected to the extension 11 and is located on a side of the base 1 away from the urea tank 5, and the top plate 411 is parallel to the base 1 and overlaps with a projected portion of the base 1 in the vehicle height direction; the first side plate 412 is vertically connected to a side of the top plate 411 away from the base 1 and is flush with an outer edge of the base 1; the second side plate 413 is connected between the top plate 411 and the first side plate 412 and is flush with the outer edge of the base 1, and the width of the second side plate 413 gradually decreases from the first side plate 412 to the first side plate 412.

It will be appreciated that the extension 11 is an L-shaped plate, one end of which is integrally formed with the base 1, and the other end of which is connected to the top plate 411 by bolts and nuts, and the top plate 411 is positioned on one side of the base 1 near the frame. The first side plate 412, the second side plate 413 and the top plate 411 are vertically connected to each other so as to be enclosed at the top corner of the lower structure and stably connected. A plurality of mounting holes are provided in the first side plate 412 to facilitate mounting with the substructure.

In this example, the top plate 411 is provided so as to overlap with the projected portion of the chassis 1 in the vehicle height direction, and the width of the second side plate 413 is provided so as to gradually decrease from the direction closer to the first side plate 412 to the direction away from the first side plate 412 in order to reduce the dead weight of the first fixing bracket 41 while ensuring stable attachment to the lower structure.

In some alternative embodiments, the second fixing bracket 42 includes an L-shaped top plate 421 and a side plate 422, the L-shaped top plate 421 is connected to the base 1 at a top angle with respect to the first side plate 412, and a corner of the L-shaped top plate 421 coincides with the top angle of the base 1; the side plate 422 is vertically connected to the L-shaped top plate 421 and is flush with the outer edge of the base 1.

In this example, the side plate 422 is connected at a corner away from the L-shaped top plate 421 and is in the same plane as the first side plate 412. The side plates 422 are also provided with a plurality of mounting holes for mounting and fixing with the lower structure.

The first fixing support 41 and the second fixing support 42 are cast pieces and are attached to the mounting surface of the lower structure when connected with the lower structure, so that space occupation rate is reduced, and stability of mounting connection is improved.

Of course, in other embodiments, the first and second fixing brackets 41 and 42 may be provided according to the external shape of the lower structure and the specific position required to be mounted on the lower structure.

In some alternative embodiments, still be equipped with water pipe fixed bolster, and bus bundle plug-in components fixed bolster, water pipe fixed bolster is connected in vertical staple bolt subassembly 2 and is close to the water inlet department of urea jar 5 for the water pipe on the fixed urea jar 5 and the butt joint water pipe on the vehicle chassis have avoided the water pipe not have the trouble that fixed pendulum probably leads to, have fixed the water pipe interface position of urea jar 5 simultaneously, are favorable to whole car modularization to arrange and outward appearance uniformity.

The bus bundle plug-in fixing support is connected with the vertical hoop assembly 2 or the transverse hoop belt 3 and is used for fixing a pipeline and a wire harness which are connected to the urea tank 5 from the vehicle chassis, so that faults possibly caused by no fixed swing of the pipeline and the wire harness are avoided, and meanwhile, the trend and the fixing position of the pipeline and the wire harness of the urea tank 5 are fixed, so that the modularized arrangement and the appearance consistency of the whole vehicle are facilitated.

In a second aspect, the present utility model also provides a urea tank assembly device, comprising a urea tank 5 and the above-mentioned urea tank fixing structure for fixing the urea tank 5.

Specifically, the urea tank 5 is placed on the base 1; at least one vertical hoop component 2 is vertically connected to the base 1 and is annularly arranged on the outer side wall of the urea tank 5; both ends of at least one transverse hoop 3 are connected with the vertical hoop assembly 2; the fixed bracket 4 is arranged on the bottom surface of the base 1 and is connected with the frame.

In some alternative embodiments, the urea tank 5 is provided with a urea pump and a liquid level sensor, and the urea pump and the liquid level sensor are fixed on the urea tank body for measuring the urea liquid level, concentration and temperature. The urea solution in the urea tank 5 is pumped out to a urea pump liquid outlet through a urea pump, and urea is further transmitted to a urea nozzle through a urea pipe, so that a urea supply and injection system is formed.

In some alternative embodiments, the urea pump and the liquid level sensor assembly are provided with heating water pipes, the liquid inlets and outlets of the heating water pipes are respectively connected with the water inlet and outlet of the engine cooling liquid through pipelines, and the cooling liquid on the engine at low temperature flows through the cooling liquid pipelines in the urea pump and the liquid level sensor assembly, and the urea in the urea pump and the urea tank 5 is thawed through heat exchange heating.

In some alternative embodiments, the urea tank 5 is provided with an injection system, the urea injection system is a compressed air driven urea injection system, a compressed air interface and a channel are arranged in the urea pump, and a compressed air source is a vehicle braking system air storage cylinder.

A compressed air pipe is arranged on the air storage cylinder and connected with an air inlet of the oil gas filter, and after the compressed air circulates in the oil gas filter and is filtered by impurities, the air pipe is connected with an outlet of the oil gas filter and a compressed air inlet of a urea pump and liquid level sensor assembly for providing air source and working power for the urea pump.

In some alternative embodiments, a plurality of limit grooves are provided on the outer side wall of the urea tank 5, in which the transverse bands 3 are placed.

It can be understood that the limiting groove for placing the transverse strap 3 is formed in the outer side wall of the urea tank 5, so that the relative position between the transverse strap 3 and the urea tank 5 is fixed, and the urea tank 5 is prevented from shaking or even falling off on the base 1.

Preferably, after the transverse hoops 3 are placed in the limiting grooves, the transverse hoops are flush with the outer side wall of the urea tank 5, so that the integrity and the attractiveness are improved.

In a third aspect, a vehicle is provided, including the urea tank assembly device described above.

It can be appreciated that by utilizing the urea tank assembly device, the urea tank can be fixed above the frame, so that the arrangement space of the chassis is saved, and the whole vehicle arrangement is facilitated.

According to the urea tank fixing structure, the urea tank assembly device and the vehicle, the base, the vertical hoop assemblies and the transverse hoops connected with the base are arranged, so that the number of the vertical hoop assemblies and the number of the transverse hoops can be increased or reduced according to the size of different urea tanks, and the universality is improved; by arranging the vertical support rods, the vertical support rods with different lengths can be matched with the vertical hoops to adapt to different urea tanks; rubber pads are arranged on one sides of the vertical support rods, the vertical hoops and the transverse hoops, which are close to the urea tank, so as to protect the urea tank, prevent the urea tank from being worn and buffer the urea tank; the base is provided with a plurality of lightening holes, so that the design requirement of light weight is met, meanwhile, accumulated rainwater can be timely discharged, and the base is prevented from rusting; the vertical hoops are clamped with the filling port through the avoiding port, so that the relative positions between urea and the vertical hoops can be further fixed, and the stability of the urea tank is improved; a plurality of mounting holes are formed in the vertical support rod along the length direction, so that the vertical support frame is universal and shared through the mounting connection of the vertical anchor ear and different mounting holes in the vertical support rod, and the mass production is facilitated to reduce the cost; the first fixing support and the second fixing support are arranged, and the first fixing support and the second fixing support are connected with the mounting surface of the lower structure in a fitting mode when connected with the lower structure, so that space occupancy is reduced, stability of mounting connection is improved, mounting is more convenient, other mounting supports are not required to be configured, and integrated modular design is achieved.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A urea tank fixing structure, characterized by comprising:

a base (1) for supporting a urea tank (5);

the vertical hoop assembly (2) is connected to the base (1) and is used for being annularly arranged on the outer side wall of the urea tank (5);

at least one transverse hoop (3), both ends of which are connected with the vertical hoop assembly (2);

and the fixed bracket (4) is arranged on the bottom surface of the base (1) and is used for being connected with the frame.

2. Urea tank fixation structure according to claim 1, characterized in that the vertical anchor ear assemblies (2) are provided in two intervals, each vertical anchor ear assembly (2) comprising:

two vertical support rods (21) which are arranged at intervals, the uniform ends of which are vertically connected with the base (1) and are respectively used for being attached to two opposite outer side walls of the urea tank (5);

the two ends of the vertical hoops (22) are respectively connected with the two ends of the vertical support rods (21) far away from the other end of the base (1) and are used for being matched with the vertical support rods (21) to fix the urea tank (5).

3. Urea tank fixing structure according to claim 2, characterized in that the vertical band (22) is provided with a relief opening for relief of the filling opening (51) of the urea tank (5).

4. Urea tank fixation structure according to claim 1, characterized in that the fixation support (4) comprises:

a first fixing bracket (41) connected to the base (1) through an extension part (11), wherein the first fixing bracket (41) is positioned at one side of the base (1) away from the urea tank (5);

and the second fixing support (42) is connected to one side, far away from the urea tank (5), of the base (1) and is arranged at intervals with the first fixing support (41).

5. Urea tank fixation structure according to claim 4, characterized in that the first fixation support (41) comprises:

a top plate (411) connected to the extension portion (11) and located on a side of the base (1) away from the urea tank (5), the top plate (411) being parallel to the base (1) and overlapping a projection portion of the base (1) in a vehicle height direction;

a first side plate (412) vertically connected to a side of the top plate (411) away from the base (1) and flush with an outer edge of the base (1);

and a second side plate (413) connected between the top plate (411) and the first side plate (412) and flush with the outer edge of the base (1), wherein the width of the second side plate (413) gradually decreases from being close to the first side plate (412) to being far away from the first side plate (412).

6. Urea tank fixation structure according to claim 5, characterized in that the second fixation support (42) comprises:

an L-shaped top plate (421) connected to the top angle of the base (1) with respect to the first side plate (412), wherein the corner of the L-shaped top plate (421) coincides with the top angle of the base (1);

and a side plate (422) vertically connected to the L-shaped top plate (421) and flush with the outer edge of the base (1).

7. Urea tank fixation structure according to claim 1, characterized in that the base (1) is provided with a plurality of lightening holes.

8. A urea tank assembly device, comprising:

a urea tank (5);

a base (1) for supporting a urea tank (5);

the vertical hoop assembly (2) is vertically connected to the base (1) and is annularly arranged on the outer side wall of the urea tank (5);

9. Urea tank assembly device according to claim 8, characterized in that the outer side wall of the urea tank (5) is provided with a plurality of limit grooves in which the transverse straps (3) are placed.

10. A vehicle comprising a urea tank assembly according to any one of claims 8-9.