In-tank foam liquid stirring device and liquid supply fire truck

Abstract

The utility model relates to an in-tank foam liquid stirring device and a liquid supply fire fighting truck, and relates to the field of fire fighting foam liquid stirring equipment. The stirring device comprises a stirring device body and a fire-fighting foam tank body, the stirring device body comprises a fixing flange, a driving motor and a stirring shaft, the fixing flange is arranged in the fire-fighting foam tank body in a penetrating mode, the fixing flange is locked and fixed to the top face of the fire-fighting foam tank body, and the driving motor is vertically fixed to the top face of the fixing flange; and the output end of the driving motor penetrates through the fixing flange and extends into the fire-fighting foam tank body, a stirring shaft is vertically arranged at the output end of the driving motor, the stirring shaft is vertically connected and assembled to the output end of the driving motor, and a fixing base is arranged at the bottom of the stirring shaft. The stirring shaft rotates to stir fire-fighting foam in the fire-fighting foam tank body, a foam extinguishing agent sufficiently flows under stirring of the stirring shaft, precipitation of the foam extinguishing agent can be effectively prevented, the service life of the foam extinguishing agent is guaranteed, and the fire extinguishing effect of the foam extinguishing agent is further guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of fire-fighting foam liquid mixing equipment, and in particular to an in-tank foam liquid mixing device and a liquid supply fire truck. Background Technology

[0002] Among numerous fires, petrochemical fires are characterized by rapid combustion, rapid spread, and a tendency to form large-area fires. To deal with such fires, petrochemical companies generally equip themselves with large-tonnage water supply fire trucks and large-tonnage foam supply fire trucks. In order to cope with sudden fires, the extinguishing agent in the fire truck tanks needs to be kept fully loaded at all times. However, the foam extinguishing agent in the tanks will precipitate if left to stand for a long time. This not only seriously shortens the service life of the foam extinguishing agent, but also makes the precipitated foam extinguishing agent difficult to clean, corrodes equipment, and pollutes the environment.

[0003] The existing announcement number CN215136219U, entitled "A Forest Firefighting Solid Foam Fire Truck," includes a vehicle body, a proportioning controller, a liquid pump, a mixer, and a spray gun. The vehicle body has a compartment containing separately separated tanks for foam concentrate, surfactant, and foaming agent. The liquid pump extends a pipeline from the proportioning controller into each of the foam concentrate, surfactant, and foaming agent tanks. The inlet of the mixer is connected to each tank via the proportioning controller. The outlet of the mixer is connected to the spray gun. This invention has advantages such as being environmentally friendly and efficient, water-free, high-temperature resistant, having good adhesion, and excellent mobility. It integrates well with the vehicle body, is easy to use, and has a high degree of automation. It enables the efficient preparation and timely and effective spraying of solidified foam extinguishing agents to cover forest fire sites, facilitating the rapid emergency establishment of firebreaks and fire suppression in large-area, rapidly spreading forest fires.

[0004] Regarding the aforementioned technologies, the inventors discovered that the extinguishing agent in the fire truck tank needs to be fully loaded at all times. The tank lacks mixing and stirring components, and the foam extinguishing agent in the tank will precipitate if left to stand for a long time. This not only seriously shortens the service life of the foam extinguishing agent, but also affects its fire extinguishing effect. Utility Model Content

[0005] In order to overcome the problem that the extinguishing agent in the tank of existing fire trucks needs to be kept at full capacity at all times, and that the foam extinguishing agent in the tank will precipitate after being left to stand for a long time, which not only seriously shortens the service life of the foam extinguishing agent, this application provides a foam liquid stirring device in the tank and a liquid supply fire truck.

[0006] The technical solution provided in this application for an in-tank foam liquid stirring device and a liquid supply fire truck adopts the following:

[0007] A foam liquid mixing device for use in a fire-fighting foam tank includes a mixing device and a fire-fighting foam tank. The mixing device includes a fixed flange, a drive motor, and a mixing shaft. The fixed flange is disposed inside the fire-fighting foam tank and is locked to the top surface of the fire-fighting foam tank. The drive motor is vertically fixed to the top surface of the fixed flange. The output end of the drive motor extends through the fixed flange into the interior of the fire-fighting foam tank. The mixing shaft is vertically disposed at the output end of the drive motor and is vertically connected to the output end of the drive motor. A fixed base is disposed at the bottom of the mixing shaft and is fixed to the bottom surface of the inner wall of the fire-fighting foam tank. A limit base is vertically disposed on the top surface of the fixed base and is rotatably connected to the bottom end of the mixing shaft.

[0008] By adopting the above technical solution, the fixed flange of the mixing device is locked and installed on the top of the outer surface of the fire-fighting foam tank. Then, the drive motor is vertically fixed to the top surface of the fixed flange, and the output end of the drive motor is inserted into the interior of the fire-fighting foam tank through the fixed flange. The mixing shaft is then vertically installed inside the fire-fighting foam tank, with the top end of the mixing shaft fixedly assembled with the output end of the drive motor. At the same time, a fixed base is vertically fixed on the inner wall of the fire-fighting foam tank, and a limit base is vertically fixed on the top surface of the fixed base. The bottom end of the mixing shaft rotates and inserts into the limit base. To prevent the fire-fighting foam inside the fire-fighting foam tank from settling, the drive motor is started to drive the mixing shaft to rotate. The rotation of the mixing shaft stirs the fire-fighting foam inside the fire-fighting foam tank. The foam extinguishing agent flows fully under the stirring of the mixing shaft, which can effectively prevent the foam extinguishing agent from settling, ensure the service life of the foam extinguishing agent, and also ensure the fire extinguishing effect of the foam extinguishing agent.

[0009] Optionally, multiple stirring plates are symmetrically arranged on the outer circumference of the stirring shaft, and one end of each stirring plate is fixed to the outer circumference of the stirring shaft.

[0010] By adopting the above technical solution, multiple stirring plates are horizontally fixed on the outer circumference of the stirring shaft in the vertical direction. The rotating stirring shaft drives the multiple stirring plates to rotate, agitating the flow of fire-fighting foam inside the fire-fighting foam tank, improving the fluidity of the fire-fighting foam inside the fire-fighting foam tank, and preventing the fire-fighting foam inside the fire-fighting foam tank from settling.

[0011] Optionally, multiple stirring vertical plates are arranged horizontally and vertically on both the upper and lower horizontal end faces of the stirring horizontal plate, and the bottom ends of the multiple stirring vertical plates are fixed to the stirring horizontal plate.

[0012] By adopting the above technical solution, multiple stirring vertical plates are evenly and vertically arranged on the upper and lower horizontal end faces of the stirring plate. The multiple stirring vertical plates agitate the flow of fire-fighting foam inside the fire-fighting foam tank, thereby preventing the fire-fighting foam inside the fire-fighting foam tank from settling.

[0013] Optionally, the fixing flange is fixed to the top surface of the fire foam tank by connecting bolts.

[0014] By adopting the above technical solution, the fixed flange is fixed to the top surface of the fire foam tank by connecting bolts, ensuring the stability of the fixed flange installed on the fire foam tank.

[0015] Optionally, screw holes are vertically fixed on the top surface of the stirring shaft and the bottom surface of the output end of the drive motor, and a connecting sleeve is provided between the stirring shaft and the output shaft of the drive motor.

[0016] By adopting the above technical solution, screw holes are vertically fixed on the top surface of the stirring shaft and the bottom surface of the output end of the drive motor, which are used to cooperate with the insertion connecting sleeve to complete the assembly, ensuring the effectiveness of the drive motor in driving the stirring shaft.

[0017] Optionally, the upper and lower sides of the outer circumference of the connecting sleeve are horizontally threaded with fastening screws, and the fastening screws are threadedly assembled with the screw hole insert.

[0018] By adopting the above technical solution, the connecting sleeve is connected to the screw hole plug on the output end of the stirring shaft and the drive motor. The fastening screw passes through the connecting sleeve and the screw hole plug to achieve the stability of the locking installation of the stirring shaft and the output shaft of the drive motor.

[0019] Optionally, the limiting base and the fixed base are connected by a locking bolt thread assembly.

[0020] By adopting the above technical solution, the limiting base and the fixed base are fixedly assembled together by locking bolts. The top surface of the limiting base has a through groove, and the groove of the limiting base is inserted into the bottom of the stirring shaft, which ensures the stability of the bottom end when the stirring shaft stirs the foam extinguishing agent.

[0021] Optionally, a liquid-supplying fire truck includes a mixing device and a fire truck body, wherein a fire foam tank is horizontally fixed on the body of the fire truck body, and a mixing device is installed inside the fire foam tank.

[0022] By adopting the above technical solution, a fire-fighting foam tank is horizontally fixed on the body of the fire truck with central liquid supply. A stirring device is installed inside the fire-fighting foam tank. The stirring shaft rotates to stir the fire-fighting foam inside the fire-fighting foam tank. The foam extinguishing agent flows fully under the stirring of the stirring shaft, which can effectively prevent the foam extinguishing agent from settling and ensure the service life of the foam extinguishing agent.

[0023] In summary, this application includes at least one of the following beneficial technical effects: During use, the fixed flange of the mixing device is locked and installed on the top of the outer surface of the fire-fighting foam tank. Then, the drive motor is vertically fixed to the top surface of the fixed flange, and the output end of the drive motor penetrates the fixed flange and inserts into the interior of the fire-fighting foam tank. The mixing shaft is then vertically positioned inside the fire-fighting foam tank, with its top end fixedly assembled to the output end of the drive motor. A fixed base is vertically fixed to the inner wall of the fire-fighting foam tank, and a limit base is vertically fixed to the top surface of the fixed base. The bottom end of the mixing shaft rotates and inserts into the limit base. To prevent sedimentation of the fire-fighting foam inside the fire-fighting foam tank, the drive motor is started to drive the mixing shaft to rotate. The rotation of the mixing shaft stirs the fire-fighting foam inside the fire-fighting foam tank, allowing the foam extinguishing agent to flow fully under the stirring action of the mixing shaft. This effectively prevents sedimentation of the foam extinguishing agent, ensuring its service life and fire-fighting effect. Attached Figure Description

[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 mixing device and fire tank in the disassembled state according to the embodiments of this application;

[0026] Figure 3 This is a schematic diagram of the stirring device in the decomposed state according to an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the structure of the stirring shaft in the decomposed state according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Mixing device; 11. Fixed flange; 111. Connecting bolt; 12. Drive motor; 13. Mixing shaft; 131. Mixing horizontal plate; 132. Mixing vertical plate; 133. Screw hole insert; 14. Fixed base; 141. Limiting base; 142. Locking bolt; 15. Connecting sleeve; 151. Fastening screw; 2. Fire truck body; 3. Fire foam tank. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] This application discloses an in-tank foam liquid stirring device and a liquid supply fire truck. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4A foam liquid mixing device for use in a fire-fighting foam tank includes a mixing device 1 and a fire-fighting foam tank 3. The mixing device 1 includes a fixed flange 11, a drive motor 12, and a mixing shaft 13. The fixed flange 11 is disposed inside the fire-fighting foam tank 3 and is locked and fixed to the top surface of the fire-fighting foam tank 3. The drive motor 12 is vertically fixed to the top surface of the fixed flange 11. The output end of the drive motor 12 extends through the fixed flange 11 into the interior of the fire-fighting foam tank 3. The mixing shaft 13 is vertically disposed at the output end of the drive motor 12 and is vertically connected to the output end of the drive motor 12. A fixed base 14 is disposed at the bottom of the mixing shaft 13 and is fixed to the bottom surface of the inner wall of the fire-fighting foam tank 3. A limiting base 141 is vertically disposed on the top surface of the fixed base 14 and is rotatably connected to the bottom end of the mixing shaft 13.

[0031] By adopting the above technical solution, during use, the fixed flange 11 in the stirring device 1 is locked and installed on the top of the outer surface of the fire foam tank 3. Then, the drive motor 12 is vertically fixed on the top surface of the fixed flange 11, and the output end of the drive motor 12 is inserted into the interior of the fire foam tank 3 through the fixed flange 11. Then, the stirring shaft 13 is vertically set inside the fire foam tank 3, and the top end of the stirring shaft 13 is fixedly assembled with the output end of the drive motor 12. At the same time, a fixed base 14 is vertically fixed on the inner wall of the fire foam tank 3, and a limit base 141 is vertically fixed on the top surface of the fixed base 14. The bottom end of the stirring shaft 13 is rotated and inserted into the limit base 141. In order to prevent the fire foam inside the fire foam tank 3 from settling, the drive motor 12 is started to drive the stirring shaft 13 to rotate. The rotation of the stirring shaft 13 stirs the fire foam inside the fire foam tank 3. The foam extinguishing agent flows fully under the stirring of the stirring shaft 13, which can effectively prevent the foam extinguishing agent from settling, ensure the service life of the foam extinguishing agent, and also ensure the fire extinguishing effect of the foam extinguishing agent.

[0032] Reference Figure 4Multiple stirring horizontal plates 131 are symmetrically arranged on the outer circumference of the stirring shaft 13, with one end of each stirring horizontal plate 131 fixed to the outer circumference of the stirring shaft 13. Multiple stirring horizontal plates 131 are horizontally fixed vertically on the outer circumference of the stirring shaft 13. The rotating stirring shaft 13 drives the stirring horizontal plates 131 to rotate, agitating the flow of fire-fighting foam inside the fire-fighting foam tank 3, improving the fluidity of the fire-fighting foam inside the fire-fighting foam tank 3, and preventing sedimentation of the fire-fighting foam inside the fire-fighting foam tank 3. Multiple stirring vertical plates 132 are horizontally and vertically arranged on both the upper and lower horizontal end faces of the stirring horizontal plates 131, with the bottom ends of the stirring vertical plates 132 fixed to the stirring horizontal plates 131. Multiple stirring vertical plates 132 are evenly and vertically arranged on both the upper and lower horizontal end faces of the stirring horizontal plates 131. The multiple stirring vertical plates 132 agitate the flow of fire-fighting foam inside the fire-fighting foam tank 3, preventing sedimentation of the fire-fighting foam inside the fire-fighting foam tank 3.

[0033] Reference Figure 2 and Figure 3 The fixing flange 11 is fixed to the top surface of the fire foam tank 3 by connecting bolts 111. The fixing flange 11 is fixed to the top surface of the fire foam tank 3 by connecting bolts 111 to ensure the stability of the fixing flange 11 on the fire foam tank 3.

[0034] Reference Figure 2 and Figure 3 Both the top surface of the stirring shaft 13 and the bottom surface of the output end of the drive motor 12 are vertically fixed with screw-hole inserts 133, and a connecting sleeve 15 is provided between the stirring shaft 13 and the output shaft of the drive motor 12. The screw-hole inserts 133 are vertically fixed on both the top surface of the stirring shaft 13 and the bottom surface of the output end of the drive motor 12 to cooperate with the connecting sleeve 15 for assembly, ensuring the effectiveness of the drive motor 12 in driving the stirring shaft 13. Fastening screws 151 are horizontally threaded through the upper and lower sides of the outer circumference of the connecting sleeve 15, and the fastening screws 151 are threadedly assembled with the screw-hole inserts 133. The connecting sleeve 15 and the screw-hole inserts 133 on the output end of the stirring shaft 13 and the drive motor 12 are connected by the fastening screws 151 passing through the connecting sleeve 15 and the screw-hole inserts 133, thus ensuring the stability of the locking installation of the stirring shaft 13 and the output shaft of the drive motor 12.

[0035] Reference Figure 3 The limiting base 141 and the fixed base 14 are connected by a locking bolt 142. The limiting base 141 and the fixed base 14 are fixedly assembled together by the locking bolt 142. The top surface of the limiting base 141 has a through groove, and the groove of the limiting base 141 is rotatably inserted into the bottom of the stirring shaft 13, which ensures the stability of the bottom end of the stirring shaft 13 when it agitates the foam extinguishing agent.

[0036] Reference Figure 1A liquid-supply fire truck includes a mixing device and a fire truck body 2. A fire-fighting foam tank 3 is horizontally fixed on the body of the fire truck body 2, and a mixing device is installed inside the fire-fighting foam tank 3. During use, the fire-fighting foam tank 3 is horizontally fixed on the body of the liquid-supply fire truck. The mixing device inside the fire-fighting foam tank 3, with a rotating mixing shaft 13, agitates the fire-fighting foam inside the tank 3. The foam extinguishing agent flows fully under the agitation of the mixing shaft 13, effectively preventing sedimentation and ensuring the service life of the foam extinguishing agent.

[0037] The implementation principle of the foam liquid stirring device and the supply fire truck in this application embodiment is as follows: During use, the fixing flange 11 of the stirring device 1 is locked and installed on the top of the outer surface of the fire foam tank 3. Then, the drive motor 12 is vertically fixed to the top surface of the fixing flange 11, and the output end of the drive motor 12 is inserted into the interior of the fire foam tank 3 through the fixing flange 11. Then, the stirring shaft 13 is vertically set inside the fire foam tank 3, and the top end of the stirring shaft 13 is fixedly assembled with the output end of the drive motor 12. At the same time, a fixing base 14 is vertically fixed on the inner wall of the fire foam tank 3, and a limiting base 141 is vertically fixed on the top surface of the fixing base 14. The bottom end of the stirring shaft 13 is rotated and inserted into the limiting base 14. In step 1, to prevent the fire-fighting foam inside the fire-fighting foam tank 3 from settling, the drive motor 12 is started to drive the stirring shaft 13 to rotate. Multiple stirring plates 131 are horizontally fixed on the outer circumference of the stirring shaft 13 in the vertical direction. The rotating stirring shaft 13 drives the multiple stirring plates 131 to rotate, stirring the fire-fighting foam inside the fire-fighting foam tank 3. Multiple stirring vertical plates 132 are evenly and vertically arranged on the upper and lower horizontal end faces of the stirring plates 131. The multiple stirring vertical plates 132 stir the fire-fighting foam inside the fire-fighting foam tank 3. The rotation of the stirring shaft 13 stirs the fire-fighting foam inside the fire-fighting foam tank 3. The foam extinguishing agent flows fully under the stirring of the stirring shaft 13, which can effectively prevent the foam extinguishing agent from settling.

[0038] 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. An in-tank foam liquid agitator characterized by, The utility model provides a stirring device and fire -fighting foam tank body (3) including the stirring device (1) including fixed flange (11), drive motor (12) and stirring shaft (13), fixed flange (11) is arranged in the inside of fire -fighting foam tank body (3) through, and fixed flange (11) is locked and fixed on the top surface of fire -fighting foam tank body (3), and the top surface of fixed flange (11) is vertically fixed with drive motor (12), the output of drive motor (12) extends to the inside of fire -fighting foam tank body (3) through fixed flange (11), the output of drive motor (12) is vertically provided with stirring shaft (13), and the output of drive motor (12) is vertically connected and assembled with stirring shaft (13), the bottom of stirring shaft (13) is provided with fixed base (14), and fixed base (14) is fixed on the inner wall bottom surface of fire -fighting foam tank body (3), the top surface of fixed base (14) is vertically provided with limiting base (141), and limiting base (141) is rotatably connected with the bottom end of stirring shaft (13) assembly.

2. A tank foam liquid agitation device according to claim 1, characterised in that: The outer circumferential surface of the stirring shaft (13) is symmetrically provided with a plurality of stirring horizontal plates (131), and one end of the plurality of stirring horizontal plates (131) is fixed on the outer circumferential surface of the stirring shaft (13).

3. A tank foam liquid agitation device according to claim 2, characterised in that: The upper and lower horizontal end surfaces of the stirring horizontal plate (131) are both horizontally and vertically provided with a plurality of stirring vertical plates (132), and the bottom end of the plurality of stirring vertical plates (132) is fixed on the stirring horizontal plate (131).

4. A tank foam liquid agitation device according to claim 1, characterized in that: The fixed flange (11) is fixed on the top surface of the fire -fighting foam tank body (3) through the connecting bolt (111).

5. A tank foam liquid agitation device according to claim 4, characterised in that: The top surface of the stirring shaft (13) and the bottom surface of the output end of the drive motor (12) are both vertically fixed with a threaded hole insert block (133), and a connecting sleeve (15) is arranged between the stirring shaft (13) and the output shaft of the drive motor (12).

6. A tank foam liquid agitation device according to claim 5, wherein: The outer circumferential surface of the connecting sleeve (15) is horizontally and threadedly penetrated by a fastening screw (151) on both sides, and the fastening screw (151) is threadedly assembled with the threaded hole insert block (133).

7. A tank foam liquid agitation device as defined in claim 1, wherein: The limiting base (141) and the fixed base (14) are threadedly assembled by the locking bolt (142).

8. A supply tank fire fighting vehicle comprising the mixing device according to any one of claims 1 to 7 and a fire fighting vehicle body (2), characterized in that: The fire -fighting vehicle body (2) is horizontally fixed with the fire -fighting foam tank body (3) on the vehicle body, and the stirring device is installed in the fire -fighting foam tank body (3).

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