Vehicle urea tank integrated device and commercial vehicle

Abstract

The present invention discloses a vehicle urea tank integrated device and a commercial vehicle. The vehicle urea tank integrated device includes a mounting portion, a urea supply component, a battery component and a metering pump assembly. The mounting portion is mounted on a side of a vehicle frame assembly, and has a first mounting area and a second mounting area arranged in sequence along a horizontal direction. The urea supply component is mounted on the first mounting area, the battery component is mounted on the second mounting area, and the metering pump assembly is mounted on the mounting portion and arranged adjacent to the first mounting area along a horizontal direction. The metering pump assembly is used to measure and control the output of urea solution from the urea supply component, so that the urea supply component, the battery component and the metering pump assembly are integrated into one body, thereby reducing the installation space occupied. Moreover, since the urea supply component, the battery component and the metering pump assembly are arranged horizontally, the urea supply component, the battery component or the metering pump assembly are prevented from being scratched by complex road conditions, thereby achieving good effect.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a vehicle urea tank integrated device and a commercial vehicle. Background Art

[0002] With the development of the automobile industry, more and more cars have entered the actual production and daily life, greatly facilitating people's lives. As the mileage of cars increases, in order to ensure a certain degree of purification of exhaust gas and thus reduce exhaust pollution, most vehicles are equipped with urea tanks. The urea in the urea tank combines with the car's exhaust gas, and the urea supply mechanism supplies urea to the engine. During the fuel combustion process, a chemical reaction occurs, converting nitrogen oxides into nitrogen and water, which are discharged. Nitrogen and water are harmless to the atmosphere and human body.

[0003] However, due to the low modularity and large footprint of traditional urea supply mechanisms, the placement of other components on the vehicle is limited, resulting in insufficient installation space. Furthermore, the urea tank currently requires a separate bracket to be mounted on the vehicle frame. This bracket is generally a frame-type structure. However, while securing the urea tank, the frame also increases the space required, causing the urea supply mechanism to occupy even more space in the vehicle. Summary of the Invention

[0004] The main purpose of the present invention is to provide a vehicle urea tank integrated device and a commercial vehicle, aiming to solve the problem in the prior art that the urea tank requires an independent bracket to be installed on the vehicle frame, resulting in the urea supply mechanism occupying more vehicle space.

[0005] To achieve the above objectives, the present invention proposes a vehicle urea tank integrated device, comprising:

[0006] A mounting portion, used for mounting on a side of the vehicle frame assembly, the mounting portion having a first mounting area and a second mounting area sequentially arranged in a horizontal direction;

[0007] a urea supply assembly, installed in the first installation area;

[0008] a battery assembly, installed in the second installation area; and

[0009] A metering pump assembly is installed on the installation portion and is arranged horizontally adjacent to the first installation area. The metering pump assembly is used to meter and control the urea supply component to output urea solution.

[0010] Optionally, the mounting portion includes:

[0011] A supporting plate extending in a horizontal direction, the supporting plate having a first mounting end and a second mounting end opposite to and spaced from each other in a front-to-back direction; and

[0012] The connecting portion includes a first connecting member and a second connecting member both extending in the left-right direction, the first connecting member and the second connecting member being mounted on the first mounting end and the second mounting end, respectively, and one end of the first connecting member and one end of the second connecting member being respectively connected to the vehicle frame assembly;

[0013] The first installation area and the second installation area are formed on the upper end surface of the supporting plate, and the first installation area is arranged adjacent to the first installation end, and the metering pump assembly is installed on a side of the first connecting member facing away from the second connecting member.

[0014] Optionally, opposite and adjacent side surfaces of the first connecting member and the second connecting member are both provided with support platforms extending in a horizontal direction, and each of the support platforms is used to abut against the lower end surface of the supporting plate.

[0015] Optionally, a separator is further included, the separator being mounted on the carrier plate to separate the upper end surface of the carrier plate into the first installation area and the second installation area; and / or,

[0016] The supporting plate includes a base plate and a movable plate. The movable plate is movably mounted on the base plate in a front-to-back direction. Two ends of the movable plate and the base plate that are opposite to each other in the front-to-back direction form the first mounting end and the second mounting end respectively.

[0017] Optionally, the first connecting member includes a first baffle extending in the vertical direction, and the first baffle is fixedly connected to the supporting plate;

[0018] The partition comprises a partition plate extending in the vertical direction, the partition plate being fixedly connected to the supporting plate, and the partition plate and the first baffle being opposite and spaced apart in the front-rear direction to limit the movable travel of the urea supply assembly in the front-rear direction.

[0019] Optionally, the upper ends of the partition plate and the first baffle are both provided with mounting posts extending upward;

[0020] The vehicle urea tank integrated device also includes a first limiting assembly, which includes a first pressing piece. The first pressing piece is extended in the front-to-back direction, abuts against the urea supply assembly, and both ends of the first pressing piece are connected to the mounting column through a threaded structure.

[0021] Optionally, the second connecting member includes a second baffle extending in the up-down direction, the second baffle is fixedly connected to the supporting plate, and the second baffle and the partition plate are opposite and spaced apart in the front-back direction to limit the movable travel of the battery assembly in the front-back direction.

[0022] Optionally, the upper ends of the partition plate and the second baffle are both provided with protruding columns extending upward;

[0023] The vehicle urea tank integrated device also includes a second limiting assembly, which includes a second pressing piece. The second pressing piece is extended in the front-back direction, abuts against the battery assembly, and has release hooks at both ends. The two release hooks are mounted on the two bosses.

[0024] Optionally, each of the protruding columns is provided with an external thread;

[0025] The second limiting assembly further includes two compression nuts, which are respectively threadedly connected to the corresponding protruding columns and press-fitted onto the corresponding unhooking to limit the upward movable stroke of the unhooking.

[0026] To achieve the above-mentioned object, the present invention provides a commercial vehicle, comprising the above-mentioned vehicle urea tank integrated device, wherein the vehicle urea tank integrated device comprises:

[0027] A mounting portion, used for mounting on a side of the vehicle frame assembly, the mounting portion having a first mounting area and a second mounting area sequentially arranged in a horizontal direction;

[0028] a urea supply assembly, installed in the first installation area;

[0029] a battery assembly, installed in the second installation area; and

[0030] A metering pump assembly is installed on the installation portion and is arranged horizontally adjacent to the first installation area. The metering pump assembly is used to meter and control the urea supply component to output urea solution.

[0031] In the technical solution of the present invention, since the mounting portion has a first mounting area and a second mounting area sequentially arranged in the horizontal direction, the urea supply assembly is mounted in the first mounting area, the battery assembly is mounted in the second mounting area, and the metering pump assembly is mounted on the mounting portion and arranged adjacent to the first mounting area in the horizontal direction. The metering pump assembly measures and controls the output of urea solution from the urea supply assembly. In this manner, the urea supply assembly, the battery assembly, and the metering pump assembly are integrated into one body, thereby reducing the installation space occupied. Moreover, since the urea supply assembly, the battery assembly, and the metering pump assembly are arranged horizontally, damage to the urea supply assembly, the battery assembly, or the metering pump assembly due to complex road conditions is avoided, resulting in good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 This is a structural schematic diagram of an embodiment of the vehicle urea tank integrated device provided by the present invention;

[0034] Figure 2 for Figure 1 A schematic structural diagram of a vehicle urea tank integrated device (partial structure);

[0035] Figure 3 for Figure 2 A partial enlarged schematic diagram of the metering pump assembly;

[0036] Figure 4 for Figure 1 Schematic diagram of the structure of the urea tank integrated device for CRRC (one angle);

[0037] Figure 5 for Figure 1 A schematic diagram of the structure of the separator installed in the middle installation part;

[0038] Figure 6 for Figure 1 Schematic diagram of the structure of the middle load-bearing plate.

[0039] Description of Figure Numbers:

[0040] Label name Label name 100 Vehicle urea tank integrated device 5 separators 1 Installation Department 51 Divider 1a First installation area 61 chute 1b Second installation area 611 contact surface 11 Loading plate 62 Sliding boss 111 substrate 621 step surface 112 Activity board 7 The first limit component 121 First connecting piece 71 First pressing member 1211 First baffle 8 The second limiting component 122 Second connecting piece 81 Second pressing member 1221 Second baffle 82 Compression nut 13 Locking screw a Support platform 2 Urea supply components b Mounting Column 3 Battery components c convex column 4 Metering pump assembly d Decoupling

[0041] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] It should be noted that if a directional indication is involved in an embodiment of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] With the development of the automobile industry, more and more cars have entered the actual production and daily life, greatly facilitating people's lives. As the mileage of cars increases, in order to ensure a certain degree of purification of exhaust gas and thus reduce exhaust pollution, most vehicles are equipped with urea tanks. The urea in the urea tank combines with the car's exhaust gas, and the urea supply mechanism supplies urea to the engine. During the fuel combustion process, a chemical reaction occurs, converting nitrogen oxides into nitrogen and water, which are discharged. Nitrogen and water are harmless to the atmosphere and human body.

[0046] However, due to the low modularity and large footprint of traditional urea supply mechanisms, the placement of other components on the vehicle is limited, resulting in insufficient installation space. Furthermore, the urea tank currently requires a separate bracket to be mounted on the vehicle frame. This bracket is generally a frame-type structure. However, while securing the urea tank, the frame also increases the space required, causing the urea supply mechanism to occupy even more space in the vehicle.

[0047] In view of this, the present invention provides a vehicle urea tank integrated device and a commercial vehicle. Figures 1 to 6 This is an embodiment of the vehicle urea tank integrated device provided by the present invention.

[0048] Reference Figures 1 to 5 The vehicle urea tank integrated device 100 includes a mounting portion 1, a urea supply assembly 2, a battery assembly 3, and a metering pump assembly 4. The mounting portion 1 is used to be mounted on the side of the frame assembly. The mounting portion 1 has a first mounting area 1a and a second mounting area 1b arranged in sequence along the horizontal direction. The urea supply assembly 2 is mounted in the first mounting area 1a, and the battery assembly 3 is mounted in the second mounting area 1b. The metering pump assembly 4 is mounted on the mounting portion 1 and is arranged adjacent to the first mounting area 1a along the horizontal direction. The metering pump assembly 4 is used to measure and control the output of urea solution from the urea supply assembly 2.

[0049] In the technical solution of the present invention, since the mounting portion 1 has a first mounting area 1a and a second mounting area 1b arranged in sequence along the horizontal direction, the urea supply assembly 2 is installed in the first mounting area 1a, the battery assembly 3 is installed in the second mounting area 1b, and the metering pump assembly 4 is installed on the mounting portion 1 and arranged adjacent to the first mounting area 1a in the horizontal direction. The urea supply assembly 2 is measured and controlled by the metering pump assembly 4 to output urea solution. In this way, the urea supply assembly 2, the battery assembly 3 and the metering pump assembly 4 are integrated into one body, which reduces the installation space. Moreover, since the urea supply assembly 2, the battery assembly 3 and the metering pump assembly 4 are arranged horizontally, the urea supply assembly 2, the battery assembly 3 or the metering pump assembly 4 are prevented from being scratched by complex road conditions, and the effect is good.

[0050] Specifically, refer to Figure 5 The mounting portion 1 includes a carrying plate 11 and a connecting portion, the carrying plate 11 is extended horizontally, the carrying plate 11 has a first mounting end and a second mounting end opposite and spaced apart in the front-rear direction, the connecting portion includes a first connecting member 121 and a second connecting member 122 both extending in the left-right direction, the first connecting member 121 and the second connecting member 122 are respectively installed at the first mounting end and the second mounting end, one end of the first connecting member 121 and one end of the second connecting member 122 are respectively used to be connected to the frame assembly, the first mounting area 1a and the second mounting area 1b are formed on the upper end surface of the carrying plate 11, and the first mounting area 1a is adjacent to the first mounting end, the metering pump assembly 4 is installed on the side of the first connecting member 121 away from the second connecting member 122, so that the installation of the urea supply assembly 2, the battery assembly 3 and the metering pump assembly 4 is realized, the structure is simple and easy to process.

[0051] Further, refer to Figure 2 and Figure 5 The first connecting member 121 and the second connecting member 122 are opposite to and adjacent to each other on the side surfaces thereof and are provided with support platforms a extending in the horizontal direction. By making each of the support platforms a abut against the lower end surface of the supporting plate 11, the contact area between the first connecting member 121 and the second connecting member 122 and the supporting plate 11 is increased, so that the first connecting member 121 and the second connecting member 122 are firmly installed on the supporting plate 11 to avoid shaking.

[0052] Specifically, refer to Figure 5The vehicle urea tank integrated device 100 further includes a partition 5, which is mounted on the carrier plate 11. The partition 5 separates the upper end surface of the carrier plate 11 into the first installation area 1a and the second installation area 1b. In this way, the structure is simple, and mutual interference between the urea supply assembly 2 located in the first installation area 1a and the metering pump assembly 4 located in the second installation area 1b is avoided, resulting in good effect.

[0053] Considering the installation of urea supply components 2 and battery components 3 of different sizes, refer to Figure 6 The supporting plate 11 includes a base plate 111 and a movable plate 112. The movable plate 112 is movably mounted on the base plate 111 in the front-to-back direction. The two ends of the movable plate 112 and the base plate 111, which are opposite to each other in the front-to-back direction, respectively form the first mounting end and the second mounting end. With this arrangement, the movable plate 112 can be moved to a suitable position as needed, so that the sizes of the first mounting area 1a and the second mounting area 1b can be adjusted, thereby realizing the installation of the urea supply assembly 2 and the battery assembly 3 of corresponding sizes. Then, the first connecting member 121 and the second connecting member 122 respectively provided at the first mounting end are installed on the vehicle frame assembly, thereby realizing the installation of the vehicle urea tank integrated device 100. The structure is simple and easy to operate.

[0054] Further, refer to Figure 6 The movable plate 112 is slidably installed on the base plate 111 through a sliding structure. The sliding structure includes a slide groove 61 extending in the front-back direction and a sliding boss 62 adapted to the slide groove 61. One of the slide groove 61 and the sliding boss 62 is provided on the base plate 111, and the other is provided on the movable plate 112. The sliding boss 62 is adapted to the slide groove 61 to realize the movable connection between the movable plate 112 and the base plate 111. The structure is simple and easy to process.

[0055] Furthermore, in order to prevent the sliding boss 62 from escaping from the slide groove 61 along the depth direction of the slide groove 61, the slide groove 61 is arranged in a stepped manner along the depth direction of the groove to form an abutment surface 611 arranged toward the bottom of the groove, and the sliding boss 62 is installed in the slide groove 61 and is arranged in a stepped manner to form a step surface 621 arranged away from the bottom of the groove, and the step surface 621 abuts against the abutment surface 611, thereby preventing the sliding boss 62 from escaping from the slide groove 61 along the depth direction of the slide groove 61, so that the installation between the movable plate 112 and the base plate 111 is stable and the effect is good.

[0056] Specifically, in order to prevent the movable plate 112 from continuing to move relative to the base plate 111 after the position of the movable plate 112 is adjusted relative to the base plate 111, the base plate 111 is provided with a first threaded hole along the depth direction of the slide groove 61, and the first threaded hole passes through the abutment surface 611. The mounting portion 1 also includes a locking screw 13, and the threaded end of the locking screw 13 is threadedly connected to the first threaded hole, so that the locking screw 13 can be rotated so that its end abuts against the step surface 621, thereby applying pressure to the sliding boss 62, so that the friction between the sliding boss 62 and the bottom of the slide groove 61 is increased, so that after the position of the movable plate 112 is adjusted, the sliding boss 62 is fixed at this position, and the structure is simple.

[0057] Specifically, refer to Figure 5 The first connecting member 121 includes a first baffle 1211 extending in the up-down direction, and the first baffle 1211 is fixedly connected to the supporting plate 11. The partition 5 includes a partition plate 51 extending in the up-down direction, and the partition plate 51 is fixedly connected to the supporting plate 11. The partition plate 51 and the first baffle 1211 are opposite to each other and spaced apart in the front-to-back direction. The partition plate 51 and the first baffle 1211 work together to limit the movable travel of the urea supply assembly 2 in the front-to-back direction, so that the urea supply assembly 2 is firmly installed and has a good effect.

[0058] Furthermore, mounting posts b are provided on the upper ends of the partition plate 51 and the first baffle 1211, and the vehicle urea tank integrated device 100 further includes a first limiting assembly 7, which includes a first pressing member 71. The first pressing member 71 extends in the front-rear direction, abuts against the urea supply assembly 2, and both ends of the first pressing member 71 are connected to the mounting post b through a threaded structure. With this arrangement, the urea supply assembly 2 is limited by the first pressing member 71 to prevent the urea supply assembly 2 from shaking. Since both ends of the first pressing member 71 are connected to the mounting post b through a threaded structure, the first pressing member 71 is detachably connected. When urea supply assemblies 2 of different sizes are installed, the corresponding first pressing member 71 can be replaced, so that the first pressing member 71 always abuts against the corresponding urea supply assembly 2, resulting in a good limiting effect.

[0059] It should be noted that a second threaded hole is provided at the upper end of the mounting column b, and through holes are respectively provided at both ends of the first clamping member 71. The threaded structure includes two bolts, and the threaded ends of the two bolts respectively pass through the two through holes corresponding to the two ends of the first clamping member 71 and are threadedly connected with the corresponding second threaded holes, thereby realizing the fixed installation of the first clamping member 71.

[0060] Specifically, refer to Figure 5 The second connecting member 122 includes a second baffle 1221 extending in the up and down directions. The second baffle 1221 is fixedly connected to the supporting plate 11. The second baffle 1221 and the partition plate 51 are opposite to each other and spaced apart in the front-to-back direction. The second baffle 1221 and the partition plate 51 work together to limit the movable travel of the battery assembly 3 in the front-to-back direction, so that the battery assembly 3 is installed firmly and effectively.

[0061] Furthermore, the upper ends of the partition plate 51 and the second baffle 1221 are both provided with a boss c extending upward, and the vehicle urea tank integrated device 100 further includes a second limiting assembly 8, which includes a second pressing member 81, which is extended in the front-back direction and abuts against the battery assembly 3, and a decoupling hook d is provided at both ends of the second pressing member 81, and the two decoupling hooks d are hooked on the two bosses c. In this way, through the second pressing member The tightening member 81 limits the battery assembly 3 to prevent the battery assembly 3 from shaking, and since both ends of the second clamping member 81 are provided with a unhooking d, the two unhooking d are hooked on the two protruding columns c. Such a setting realizes the detachable connection of the second clamping member 81, and the disassembly and assembly are convenient. In addition, when installing the battery assemblies 3 of different sizes, the corresponding second clamping member 81 can be replaced, so that the second clamping member 81 is always in contact with the corresponding battery assembly 3, and the limiting effect is good.

[0062] In order to prevent the second clamping member 81 from falling off the boss c, each boss c is provided with an external thread, and the second limiting assembly 8 also includes two clamping nuts 82, and the two clamping nuts 82 are respectively threadedly connected to the corresponding boss c and pressed onto the corresponding unhooking d. The two clamping nuts 82 are used to limit the upward movement of the unhooking d, so that the second clamping member 81 is stably installed. In addition, the clamping nut 82 can be rotated as needed, so that the clamping nut 82 can be adjusted in the up and down directions, thereby realizing the adjustment of the installation position of the second clamping member 81 in the up and down directions, thereby improving versatility.

[0063] To achieve the above objectives, the present invention further provides a commercial vehicle, comprising a vehicle urea tank integrated device 100. The vehicle urea tank integrated device 100 adopts all the technical solutions of the above embodiments, and therefore also has the technical effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0064] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vehicle urea tank integrated device, characterized in that: include: A mounting portion, used for mounting on a side of the vehicle frame assembly, the mounting portion having a first mounting area and a second mounting area sequentially arranged in a horizontal direction; a urea supply assembly, installed in the first installation area; a battery assembly, installed in the second installation area; as well as, a metering pump assembly, mounted on the mounting portion and disposed horizontally adjacent to the first mounting area, the metering pump assembly being used to meter and control the output of urea solution from the urea supply assembly; The mounting portion includes: A supporting plate extending in a horizontal direction, the supporting plate having a first mounting end and a second mounting end opposite to and spaced from each other in a front-to-back direction; and The connecting portion includes a first connecting member and a second connecting member both extending in the left-right direction, the first connecting member and the second connecting member being mounted on the first mounting end and the second mounting end, respectively, and one end of the first connecting member and one end of the second connecting member being respectively connected to the vehicle frame assembly; The first mounting area and the second mounting area are formed on the upper end surface of the carrier plate, and the first mounting area is arranged adjacent to the first mounting end, and the metering pump assembly is installed on a side of the first connecting member facing away from the second connecting member; The first connecting member and the second connecting member are provided with support platforms extending in the horizontal direction on the sides thereof that are opposite to and adjacent to each other, and each support platform is used to abut against the lower end surface of the carrying plate; further comprising a separator, the separator being mounted on the carrier plate to separate the upper end surface of the carrier plate into the first mounting area and the second mounting area; and / or, The supporting plate includes a base plate and a movable plate. The movable plate is movably mounted on the base plate in a front-to-back direction. Two ends of the movable plate and the base plate that are opposite to each other in the front-to-back direction form the first mounting end and the second mounting end respectively.

2. The vehicle urea tank integrated device according to claim 1, characterized in that: The first connecting member includes a first baffle extending in the vertical direction, and the first baffle is fixedly connected to the supporting plate; The partition comprises a partition plate extending in the vertical direction, the partition plate being fixedly connected to the supporting plate, and the partition plate and the first baffle being opposite and spaced apart in the front-rear direction to limit the movable travel of the urea supply assembly in the front-rear direction.

3. The vehicle urea tank integrated device according to claim 2, characterized in that: The upper ends of the partition plate and the first baffle are both provided with mounting posts extending upward; The vehicle urea tank integrated device also includes a first limiting assembly, which includes a first pressing piece. The first pressing piece is extended in the front-to-back direction, abuts against the urea supply assembly, and both ends of the first pressing piece are connected to the mounting column through a threaded structure.

4. The vehicle urea tank integrated device according to claim 2, characterized in that: The second connecting member includes a second baffle extending in the up-down direction, the second baffle is fixedly connected to the supporting plate, and the second baffle and the partition plate are opposite and spaced apart in the front-back direction to limit the movable travel of the battery assembly in the front-back direction.

5. The vehicle urea tank integrated device according to claim 4, characterized in that: The upper ends of the partition plate and the second baffle are both provided with convex columns extending upward; The vehicle urea tank integrated device also includes a second limiting assembly, which includes a second pressing piece. The second pressing piece is extended in the front-back direction, abuts against the battery assembly, and has release hooks at both ends. The two release hooks are mounted on the two bosses.

6. The vehicle urea tank integrated device according to claim 5, characterized in that: Each of the protruding columns is provided with an external thread; The second limiting assembly further includes two compression nuts, which are respectively threadedly connected to the corresponding protruding columns and press-fitted onto the corresponding unhooking to limit the upward movable stroke of the unhooking.

7. A commercial vehicle, characterized in that: It comprises the vehicle urea tank integrated device according to any one of claims 1 to 6.

Images