Water tank for miniaturized fire fighting truck

By adopting a multi-layered box structure, supporting components, and wave deflector design on small fire trucks, the problems of water tank capacity and stability have been solved, achieving the effects of increasing water storage capacity and transportation safety on small fire trucks.

CN224251981UActive Publication Date: 2026-05-19SUZHOU AOWEI NEW ENERGY VEHICLE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU AOWEI NEW ENERGY VEHICLE TECHNOLOGY CO LTD
Filing Date
2025-04-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

On small fire trucks, the existing rectangular water tanks lead to reduced equipment installation space and vehicle instability when their capacity is increased, especially in narrow roads and sharp bends in old urban areas, posing a risk of overturning.

Method used

A miniaturized fire truck water tank is designed, which adopts a multi-layer box structure. The cross-section of the second box is larger than that of the third box. Supports and baffles are installed in the second box to divide the water flow space. The inlet and outlet are located in the bottom third box. Defoaming components and connecting pipes are combined to improve stability and drainage effect.

Benefits of technology

It achieves increased water tank capacity without reducing equipment installation space, and enhances stability during transportation through the design of support components and anti-surge plates, reducing the impact of water flow sloshing on the vehicle and ensuring driving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fire fighting truck water tanks, in particular to a small fire fighting truck water tank which comprises a first tank body part, a second tank body part and a third tank body part which are sequentially arranged from top to bottom, and the cross section of the second tank body part is larger than that of the third tank body part; a supporting piece is arranged in the second box body part, and a plurality of wave releasing plates are arranged in the supporting piece; a water inlet and a plurality of water outlets are formed in the third box body. The water storage tank has the effect of ensuring the transportation stability while having the water storage capacity.
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Description

Technical Field

[0001] This application relates to the technical field of fire truck water tanks, and in particular to a miniaturized fire truck water tank. Background Technology

[0002] As a core piece of equipment in urban emergency rescue systems, fire trucks' water-carrying capacity directly impacts the effectiveness of initial fire suppression. Traditional fire truck water tanks often use rectangular steel or polyethylene structures, increasing capacity by enlarging the planar dimensions. However, in the application scenarios of miniaturized fire trucks (body length ≤ 6 meters, gross weight ≤ 8 tons), the following technical bottlenecks exist:

[0003] Small fire trucks need to integrate key equipment such as water pump systems, rescue equipment compartments, and ladder supports. The existing water tank structure requires lateral expansion to increase capacity, directly compressing the equipment installation space. According to actual measurement data, when the water tank volume exceeds 1.5m³... 3 At that time, the effective operating area of ​​the equipment compartment will be reduced by more than 38%, which violates the mandatory provisions on equipment layout spacing in the "General Technical Conditions for Fire Trucks" (GB7956-2014).

[0004] Conventional rectangular water tanks, when fully loaded, cause the vehicle's center of gravity to shift upwards by approximately 0.6-0.8 meters. Combined with the chassis height of small vehicles (typically ≤1.2 meters), this increases the probability of a turning roll angle exceeding 12° by 47%, posing a rollover risk in narrow, sharp-curved roads in older urban areas. Therefore, there is an urgent need for a water tank that can be used on small fire trucks to increase capacity while maintaining driving stability. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a miniaturized fire truck water tank, which has the advantages of ensuring both water storage capacity and transportation stability.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A miniaturized fire truck water tank includes a first tank section, a second tank section, and a third tank section arranged sequentially from top to bottom, wherein the cross-section of the second tank section is larger than that of the third tank section;

[0008] The second housing is equipped with a support member, and the support member contains several wave-dissipating plates;

[0009] The third housing is equipped with a water inlet and several water outlets.

[0010] To achieve the above technical solution, the cross-section of the second tank section is larger than that of the third tank section, resulting in a larger volume for the second tank section. This allows the second tank section to be attached to the inner wall of the fire truck's tank, ensuring the overall capacity of the water tank. Simultaneously, both the inlet and outlet are located on the bottom third tank section, ensuring complete drainage. However, while the second tank section increases the tank's capacity, its center is positioned higher when full, making it prone to swaying during transport. For smaller fire trucks, the smaller floor makes the truck susceptible to swaying with the water flow, hindering operation. Therefore, by installing support components within the second tank section and incorporating wave deflectors within these components, the space inside the second tank is divided into several interconnected small spaces. The water within these spaces is blocked by the wave deflectors, reducing the degree of water flow agitation and achieving peak flow reduction, thus ensuring stability.

[0011] As a preferred embodiment of this application, the support member includes several vertically arranged support frames, auxiliary frames are provided on both sides of the support frames, the auxiliary frames abut against the side wall of the second box body, and support rods are provided in the support frames.

[0012] The above technical solution enables the auxiliary frame to support and fix the protruding parts of the second box, thereby ensuring the stability of the second box. At the same time, the support rod can prevent the second box from collapsing laterally.

[0013] As a preferred embodiment of this application, two wave deflectors are provided, each wave deflector is U-shaped, with the openings of the two wave deflectors facing outwards, and the support rod is disposed between the two wave deflectors.

[0014] The above technical solution ensures that the two wave-damping plates and the side wall of the second housing form two spaced intervals, thereby guaranteeing the wave-damping effect.

[0015] As a preferred embodiment of this application, the first housing is provided with a defoaming component, which includes horizontal baffles arranged alternately, vertical baffles between adjacent surfaces of the two baffles, and a water inlet pipe connected to the water inlet between the vertical baffles.

[0016] The above technical solution enables water to flow into the water tank through the inlet and then into the space between two horizontal baffles through the inlet pipe. The water flow is blocked by the upper horizontal baffle and connected to the lower horizontal baffle, which reduces the impact of water flow and the generation of air bubbles. At the same time, the vertical baffles on both sides can further smooth out and eliminate air bubbles, thereby ensuring the defoaming effect.

[0017] As a preferred embodiment of this application, a drain outlet is provided at the bottom of the third housing section.

[0018] The above technical solution is implemented to ensure regular slag removal and cleaning, and to guarantee water storage capacity.

[0019] As a preferred embodiment of this application, the third box section is provided with a connecting pipe, one end of which is located on the inner top wall of the first box section, and the other end is located outside the third box section.

[0020] The above technical solution enables external air to communicate with the inside of the water tank through the connecting pipe, thereby preventing the water tank from being flattened or deformed by atmospheric pressure or the water from being unable to drain during drainage.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The cross-section of the second tank section is larger than that of the third tank section, resulting in a larger volume for the second tank section. This allows the second tank section to be attached to the inner wall of the fire truck's body, ensuring the overall capacity of the water tank. Simultaneously, both the inlet and outlet are located on the bottom third tank section, ensuring complete drainage. However, while the second tank section increases the water tank's capacity, its center is positioned higher when full, making it prone to swaying during transport. In smaller fire trucks, the smaller floor makes the truck susceptible to swaying with the water flow, hindering operation. Therefore, by installing support components within the second tank section, and incorporating wave deflectors within these components, the space inside the second tank is divided into several interconnected smaller spaces. The water within these spaces is blocked by the wave deflectors, reducing the degree of water flow agitation and achieving peak flow reduction, thus ensuring stability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the bottom structure of an embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the internal structure of the water tank in an embodiment of this application.

[0027] Figure 4 This is a side view of the internal components of the housing in an embodiment of this application.

[0028] Reference numerals: 1. First housing section; 2. Second housing section; 3. Third housing section; 31. Water inlet; 32. Water outlet; 33. Drain outlet; 4. Support component; 41. Support frame; 42. Auxiliary frame; 43. Support rod; 5. Wave deflector; 6. Defoamer; 61. Water baffle; 62. Vertical water baffle; 63. Water inlet pipe; 7. Connecting pipe. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses a miniaturized water tank for fire trucks. (Refer to...) Figure 1-4 The water tank of the miniaturized fire truck includes a first tank section 1, a second tank section 2, and a third tank section 3 arranged sequentially from top to bottom. The cross-section of the second tank section 2 is larger than that of the third tank section 3. A support member 4 is installed inside the second tank section 2, and several baffles 5 are installed in the support member 4. The third tank section 3 is provided with an inlet 31 and several outlets 32. That is, because the cross-section of the second tank section 2 is larger than that of the third tank section 3, the volume of the second tank section 2 is larger than that of the third tank section 3, which allows the second tank section 2 to be attached to the inner wall of the fire truck body, thereby ensuring the overall capacity of the water tank. Meanwhile, both the inlet 31 and the outlet 32 ​​are located on the bottom third tank 3 to ensure complete drainage. However, while the second tank increases the water tank capacity, its center is located at the top when full of water, which can cause it to sway during transportation. For miniaturized fire trucks, the small floor of the fire truck body can cause the fire truck to sway with the water flow in the tank, making it difficult to drive and operate. Therefore, by installing a support member 4 in the second tank and a wave deflector 5 in the support member 4, the space inside the second tank is divided into several interconnected small spaces by the wave deflector 5. The water in the space is blocked by the wave deflector 5 to reduce the degree of water flow, thereby achieving the effect of peak reduction and ensuring stability.

[0031] The support member 4 includes several vertically arranged support frames 41, with auxiliary frames 42 on both sides of each support frame 41. The auxiliary frames 42 abut against the side wall of the second housing part 2. Support rods 43 are installed in the support frames 41, so that the auxiliary frames 42 support and fix the protruding parts of the second housing part 2, thereby ensuring the stability of the second housing part 2. At the same time, the support rods 43 can prevent the second housing part 2 from collapsing laterally. Two wave deflectors 5 are provided, which are U-shaped and have their openings facing outwards. The support rods 43 are placed between the two wave deflectors 5, so that the two wave deflectors 5 and the side wall of the second housing part 2 form two spaced spaces, thereby ensuring the wave deflection effect.

[0032] Meanwhile, to prevent air bubbles from forming during water injection into the water tank, which could cause deviations in the water volume, a defoaming component 6 is installed inside the first tank body 1. The defoaming component 6 includes horizontal baffles 61 arranged vertically and vertically, with vertical baffles 6261 between adjacent baffles. A water inlet pipe 63 connected to the water inlet 31 is installed between the vertical baffles 6261. This allows water to flow into the water tank through the water inlet 31 and then into the space between the two horizontal baffles through the water inlet pipe 63. Because the water flow is blocked by the upper horizontal baffle 61 and connected to the lower horizontal baffle 61, the impact of the water flow and the generation of air bubbles are reduced. At the same time, the vertical baffles 6261 on both sides can further smooth out and eliminate air bubbles, thereby ensuring the defoaming effect.

[0033] The third tank section 3 is equipped with a connecting pipe 7. One end of the connecting pipe 7 is located on the inner top wall of the first tank section 1, and the other end is located on the outside of the third tank section 3. This allows external air to communicate with the inside of the water tank through the connecting pipe 7, thereby preventing the water tank from being flattened or deformed by atmospheric pressure or the water from being unable to drain during drainage. The bottom of the third tank section 3 is equipped with a drain outlet 33 for periodic sludge removal and cleaning to ensure water storage capacity.

[0034] The implementation principle of the water tank for the miniaturized fire truck in this application embodiment is as follows: the cross-section of the second tank part 2 is larger than that of the third tank part 3, thereby making the volume of the second tank part 2 larger than that of the third tank part 3, so that the second tank part 2 can be attached to the inner wall of the fire truck body, thus ensuring the capacity of the entire water tank; at the same time, the inlet 31 and the outlet 32 ​​are both set on the bottom third tank part 3, thereby ensuring the completeness of drainage. However, while the setting of the second tank can increase the capacity of the water tank, its center is located at the top when it is full of water, which makes it easy to shake during transportation. For miniaturized fire trucks, the bottom plate of the fire truck body is small, which makes the fire truck easy to shake with the water flow in the water tank, making it difficult to drive and operate. Therefore, by setting a support member 4 in the second tank and setting a baffle 5 in the support member 4, the space in the second tank is divided into several interconnected small spaces by the baffle 5. The water in the space is blocked by the baffle 5 to reduce the degree of water flow, thereby achieving the effect of peak reduction and ensuring stability.

[0035] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water tank for a compact fire truck, characterized by: It includes a first box section (1), a second box section (2) and a third box section (3) arranged from top to bottom, wherein the cross-section of the second box section (2) is larger than that of the third box section (3); The second housing part (2) is provided with a support member (4), and the support member (4) is provided with a plurality of anti-surge plates (5); The third housing is provided with an inlet (31) and several outlets (32).

2. The water tank for a compact fire fighting vehicle according to claim 1, characterized in that: The support member (4) includes several vertically arranged support frames (41), and auxiliary frames (42) are provided on both sides of the support frame (41). The auxiliary frames (42) abut against the side wall of the second box part (2), and a support rod (43) is provided in the support frame (41).

3. The compact fire truck water tank of claim 2, wherein: Two wave deflectors (5) are provided. The wave deflectors (5) are U-shaped and the openings of the two wave deflectors (5) face outwards. The support rod (43) is provided between the two wave deflectors (5).

4. The compact water tank for a fire fighting vehicle of claim 1, wherein: The first housing part (1) is provided with a defoaming component (6). The defoaming component (6) includes horizontal baffles (61) arranged vertically and horizontally. Vertical baffles (62)(61) are provided between adjacent surfaces of the two baffles. A water inlet pipe (63) connected to the water inlet (31) is provided between the vertical baffles (62)(61).

5. The compact water tank for a fire fighting vehicle of claim 1, wherein: The bottom of the third box section (3) is provided with a drain outlet (33).

6. The compact fire apparatus water tank of claim 1, wherein: The third box section (3) is provided with a connecting pipe (7), one end of which is located on the inner top wall of the first box section (1), and the other end is located outside the third box section (3).