A portable fire-fighting foam extinguishing device

Abstract

This utility model relates to the field of fire-fighting equipment technology and discloses a portable fire-fighting foam extinguishing device, including a cart and a push rod. A foam liquid storage tank is located at the center of the upper surface of the cart. A mixing and regulating device is located at the output end of the foam liquid delivery pipe. A self-cleaning device is located at the center of one side of the connecting block. The mixing and regulating device includes a valve body, a valve plate at the center of the interior of the valve body, a valve stem at the center of the upper surface of the valve plate, a connecting rod at the center of the upper surface of the valve stem, a control rod at the center of the upper surface of the connecting rod, and a spiral blade at the center of the interior of the water delivery pipe. In this utility model, the mixing and regulating device allows for control of the foam liquid flow rate according to the actual fire source, ensuring fire-fighting efficiency. Furthermore, the spiral blade facilitates mixing, ensuring a good mixing effect and simplifying the mixing device.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a portable fire-fighting foam extinguishing device. Background Technology

[0002] In the field of fire protection, especially for different types of fire scenarios, foam extinguishing equipment is widely used. Portable fire foam extinguishing equipment is an efficient, flexible and easy-to-operate fire extinguishing tool, widely used in the initial fire suppression, and performs particularly well in scenarios such as oil fires, electrical fires and solid fires.

[0003] Traditional portable fire-fighting foam extinguishing equipment is prone to problems when in use. The complex mixing mechanism between the foam liquid and water, with its numerous components, makes it susceptible to damage and malfunction, affecting normal operation and increasing the difficulty of maintenance and replacement. This leads to a higher failure rate and further complicates the mixing process. Therefore, those skilled in the art have developed a portable fire-fighting foam extinguishing equipment to address the issues raised in the background section. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a portable fire-fighting foam extinguishing device. Through a mixing and adjusting device, it can control the flow rate of foam liquid according to the actual fire source, ensuring fire extinguishing efficiency. Furthermore, the spiral blades enable the mixing of the two components, ensuring the mixing effect and simplifying the mixing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable fire-fighting foam extinguishing device, comprising a trolley and a push rod, wherein the push rod is located at the center of the upper end face of the trolley, a foam liquid storage tank is located at the center of the upper end face of the trolley, a connecting block is located at the center of the upper end face of the foam liquid storage tank, a foam liquid delivery pipe is located at the center of the upper end face of the foam liquid storage tank, a mixing and adjusting device is located at the output end of the foam liquid delivery pipe, a connecting cylinder is located at the output end of the mixing and adjusting device, a mixing cylinder is located at the output end of the connecting cylinder, a water supply pipe is located at the center of the upper end face of the mixing cylinder, a spray gun is located at the output end of the mixing cylinder, and a self-cleaning device is located at the center of one side of the connecting block;

[0006] The mixing and regulating device includes a valve body, which is located at the output end of the foam liquid conveying pipe. A valve plate is located at the center of the inside of the valve body. A valve stem is located at the center of the upper surface of the valve plate. A connecting rod is located at the center of the upper surface of the valve stem. A control rod is located at the center of the upper surface of the connecting rod. A spiral blade is located at the center of the inside of the water conveying pipe.

[0007] Through the above technical solution, the foam liquid in the foam liquid storage tank is transported to the valve body of the mixing and regulating device through the foam liquid delivery pipe. The operator can then rotate the control lever to adjust the opening of the valve plate, so as to control the flow rate of the foam liquid according to the actual fire source, ensuring the fire extinguishing efficiency. The spiral blades then create turbulent and high-speed flow of water inside the water delivery pipe, causing the water flow and foam liquid flow to collide, shear, and turbulently inside the cavity mixing cylinder, achieving the mixing of the two and ensuring the mixing effect. This simplifies the mixing device and reduces the failure rate and service life of the mixing device.

[0008] Furthermore, the valve stem passes through the inner wall of the valve body and extends to the upper end face of the valve body, and is rotatably connected to the valve body via a bearing;

[0009] The above technical solution achieves the rotational adjustment of the valve plate by connecting the valve stem and valve body through a bearing.

[0010] Furthermore, the self-cleaning device includes an air pump, which is located at the center of one side of the connecting block. A three-way pipe is provided at the output end of the air pump. Connectors are provided at both output ends of the three-way pipe. Connecting pipes are provided at the output ends of the two connectors. A fixing ring is provided at the center of the inner side wall of the connecting cylinder.

[0011] The above technical solution uses an air pump to deliver high-speed airflow through a tee, connector, and connecting pipe to the inside of the fixed ring, thus achieving the delivery of high-speed airflow.

[0012] Furthermore, an annular inclined groove is provided at the center of the inner wall of the fixing ring;

[0013] The above technical solution guides high-speed airflow to the inner walls of the connecting cylinder, mixing cylinder, and spray gun via an annular inclined groove, ensuring contact between the airflow and the inner walls. This allows for the removal of residual foam liquid and impurities from the inner walls, reducing dirt accumulation inside the equipment and achieving internal self-cleaning, thereby improving the reliability and service life of the equipment.

[0014] Furthermore, the output ends of the two connecting pipes are respectively connected through the fixing ring to the inner side wall of the fixing ring;

[0015] The above technical solution, through the penetration of the connecting pipe, meets the requirements for conveying high-speed airflow.

[0016] Furthermore, the input end of the foam liquid conveying pipe passes through the upper end face of the foam liquid storage tank and extends into the interior of the foam liquid storage tank, and the output end passes through the mixing regulating device and extends into the inner wall of the mixing regulating device.

[0017] The above technical solution, through the passage of the foam liquid delivery pipe, enables the foam liquid inside the foam liquid storage tank to be transported to the mixing and regulating device, achieving mixing with the water flow, and then spraying it onto the fire source through the spray gun, thereby completing the fire extinguishing work.

[0018] Furthermore, the output end of the water supply pipe passes through the upper end face of the mixing cylinder and extends to the inner wall of the mixing cylinder, and the input end is connected to the output end of the fire hydrant;

[0019] The above technical solution, through the penetration of the water supply pipe, enables the water to be smoothly delivered to the mixing drum for mixing with the foam liquid.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, when using a portable fire-fighting foam extinguishing device, the operator can rotate a control lever to adjust the valve opening, allowing the flow rate of the foam liquid to be controlled according to the actual fire source, thus ensuring extinguishing efficiency. Furthermore, the spiral blades create turbulent and high-speed flow of water inside the water pipe, causing intense collisions, shearing, and turbulence between the water and foam liquid within the hollow mixing cylinder (which has no moving parts). This achieves mixing, ensuring a good mixing effect, simplifying the mixing device, and reducing its failure rate and lifespan.

[0022] In this invention, a high-speed airflow is delivered to the inside of the fixed ring via a three-way pipe, connector, and connecting pipe using an air pump. This enables the delivery of the high-speed airflow. The high-speed airflow is then guided to the inner wall of the connecting cylinder, mixing cylinder, and spray gun via an annular inclined groove, ensuring contact between the airflow and the inner wall. This allows for the cleaning of residual foam liquid and impurities on the inner wall, reducing the accumulation of dirt inside the equipment and achieving self-cleaning. This, in turn, improves the reliability and service life of the equipment. Attached Figure Description

[0023] Figure 1 This is a perspective view of a portable fire-fighting foam extinguishing device proposed in this utility model;

[0024] Figure 2 A perspective view of a portable fire-fighting foam extinguishing device spray gun proposed in this utility model;

[0025] Figure 3 This is a three-dimensional sectional view of a spray gun for a portable fire-fighting foam extinguishing device proposed in this utility model.

[0026] Figure 4 This is a perspective view of a self-cleaning device for a portable fire-fighting foam extinguishing equipment proposed in this utility model;

[0027] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0028] Figure 6 for Figure 3 Enlarged diagram of point B in the middle.

[0029] Legend:

[0030] 1. Cart; 2. Push rod; 3. Foam liquid storage tank; 4. Connecting block; 5. Foam liquid delivery pipe; 6. Mixing and regulating device; 601. Valve body; 602. Valve plate; 603. Valve stem; 604. Connecting rod; 605. Control rod; 606. Spiral blade; 7. Connecting cylinder; 8. Mixing cylinder; 9. Water delivery pipe; 10. Spray gun; 11. Self-cleaning device; 1101. Air pump; 1102. T-pipe; 1103. Connector; 1104. Connecting pipe; 1105. Fixing ring; 1106. Annular inclined groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-6 This utility model provides an embodiment of a portable fire-fighting foam extinguishing device, comprising a trolley 1 and a push rod 2. The push rod 2 is located at the center of the upper end face of the trolley 1 on one side. A foam liquid storage tank 3 is located at the center of the upper end face of the trolley 1. A connecting block 4 is located at the center of the upper end face of the foam liquid storage tank 3. A foam liquid delivery pipe 5 is located at the center of the upper end face of the foam liquid storage tank 3. A mixing and adjusting device 6 is located at the output end of the foam liquid delivery pipe 5. A connecting cylinder 7 is located at the output end of the mixing and adjusting device 6. A mixing cylinder 8 is located at the output end of the connecting cylinder 7. A water supply pipe 9 is located at the center of the upper end face of the mixing cylinder 8. A spray gun 10 is located at the output end of the mixing cylinder 8. A self-cleaning device 11 is located at the center of one side of the connecting block 4. The mixing and adjusting device 6 enables the control of the foam liquid flow rate according to the actual fire source, ensuring the fire extinguishing efficiency. Furthermore, the mixing of the two is achieved through the spiral blade 606, ensuring the mixing effect and simplifying the mixing device.

[0033] The self-cleaning device 11 includes an air pump 1101, which is located at the center of one side of the connecting block 4. A three-way pipe 1102 is provided at the output end of the air pump 1101. Connectors 1103 are provided at both output ends of the three-way pipe 1102. Connecting pipes 1104 are provided at the output ends of the two connectors 1103. A fixing ring 1105 is provided at the center of one inner side wall of the connecting cylinder 7. The air pump 1101 delivers high-speed airflow through the three-way pipe 1102, connectors 1103 and connecting pipes 1104 to the inside of the fixing ring 1105, thereby realizing the delivery of high-speed airflow.

[0034] An annular groove 1106 is provided at the center of the inner wall of the fixed ring 1105. The high-speed airflow is guided to the inner wall of the connecting cylinder 7, mixing cylinder 8 and spray gun 10 through the annular groove 1106, ensuring that the airflow contacts its inner wall. This allows the airflow to clean the residual foam liquid and impurities on the inner wall, reducing the accumulation of dirt inside the equipment and achieving self-cleaning, thereby improving the reliability and service life of the equipment.

[0035] The two connecting pipes 1104 pass through the fixed ring 1105 at their output ends and extend to the inner side wall of the fixed ring 1105. The passage of the connecting pipes 1104 enables the conveying of high-speed airflow.

[0036] The input end of the foam liquid delivery pipe 5 passes through the upper surface of the foam liquid storage tank 3 and extends into the interior of the foam liquid storage tank 3, while the output end passes through the mixing and regulating device 6 and extends into the inner wall of the mixing and regulating device 6. Through the passage of the foam liquid delivery pipe 5, the foam liquid inside the foam liquid storage tank 3 is transported to the interior of the mixing and regulating device 6, achieving mixing with the water flow. Then, the foam liquid is sprayed onto the fire source through the spray gun 10, thereby completing the fire extinguishing work.

[0037] The output end of the water supply pipe 9 passes through the upper end face of the mixing cylinder 8 and extends to the inner wall of the mixing cylinder 8. The input end is connected to the output end of the fire hydrant. Through the passage of the water supply pipe 9, it is possible to smoothly deliver water into the mixing cylinder 8 for mixing with the foam liquid.

[0038] like Figure 3 , 5As shown, the mixing and regulating device 6 includes a valve body 601, which is located at the output end of the foam liquid delivery pipe 5. A valve plate 602 is located at the center of the valve body 601, a valve stem 603 is located at the center of the upper surface of the valve plate 602, a connecting rod 604 is located at the center of the upper surface of the valve stem 603, and a control rod 605 is located at the center of the upper surface of the connecting rod 604. A spiral blade 606 is located at the center of the water delivery pipe 9. The foam liquid in the foam liquid storage tank 3 is delivered to the valve body 601 of the mixing and regulating device 6 through the foam liquid delivery pipe 5. The operator can then rotate the control rod 605 to adjust the opening of the valve plate 602, allowing the flow rate of the foam liquid to be controlled according to the actual fire source, ensuring fire extinguishing efficiency. The spiral blade 606 further turbulentizes and accelerates the water flow inside the water delivery pipe 9, causing the water flow and foam liquid flow to collide, shear, and turbulently within the cavity mixing cylinder 8, achieving mixing and ensuring the mixing effect. This simplifies the mixing device.

[0039] The valve stem 603 passes through the inner wall of the valve body 601 and extends to the upper end face of the valve body 601. It is rotatably connected to the valve body 601 via a bearing. The rotatable connection between the valve stem 603 and the valve body 601 via the bearing satisfies the rotation requirements of the valve stem 603 and realizes the rotational adjustment of the valve plate 602.

[0040] Working principle: When using the portable fire-fighting foam extinguishing equipment, the operator moves the cart 1 to the fire source by pushing the push rod 2. The foam liquid is then delivered from the foam liquid storage tank 3 to the mixing and regulating device 6 via the foam liquid delivery pipe 5. The operator can then rotate the control rod 605 to adjust the opening of the valve plate 602, allowing the flow rate of the foam liquid to be controlled according to the actual fire situation, ensuring extinguishing efficiency. The spiral blades 606 create turbulent and high-speed flow of water in the water delivery pipe 9, causing the water flow and foam liquid flow to collide, shear, and turbulently within the cavity mixing cylinder 8, achieving mixing and ensuring the mixing effect. This simplifies the mixing device, reduces the failure rate and service life of the mixing device, and finally sprays the fire source through the spray gun 10, thus completing the fire extinguishing work.

[0041] After the firefighting operation is completed, the high-speed airflow is delivered to the fixed ring 1105 through the air pump 1101 via the three-way pipe 1102, connector 1103 and connecting pipe 1104, thus realizing the delivery of the high-speed airflow. Then, the high-speed airflow is guided to the inner wall of the connecting cylinder 7, mixing cylinder 8 and spray gun 10 through the annular inclined groove 1106, ensuring the contact between the airflow and its inner wall. This allows for the cleaning of residual foam liquid and impurities on the inner wall, reducing the accumulation of dirt inside the equipment and achieving its self-cleaning function, thereby improving the reliability and service life of the equipment.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable fire-fighting foam extinguishing device, comprising a trolley (1) and a push rod (2), wherein the push rod (2) is disposed on one side of the center of the upper end face of the trolley (1), characterized in that: The trolley (1) has a foam liquid storage tank (3) at the center of its upper end face, a connecting block (4) at the center of its upper end face, a foam liquid delivery pipe (5) at the center of its upper end face, a mixing adjustment device (6) at the output end of the foam liquid delivery pipe (5), a connecting cylinder (7) at the output end of the mixing adjustment device (6), a mixing cylinder (8) at the output end of the connecting cylinder (7), a water supply pipe (9) at the center of its upper end face, a spray gun (10) at the output end of the mixing cylinder (8), and a self-cleaning device (11) at the center of one side of the connecting block (4). The mixing and regulating device (6) includes a valve body (601), which is located at the output end of the foam liquid conveying pipe (5). A valve plate (602) is provided at the center of the inside of the valve body (601). A valve stem (603) is provided at the center of the upper end face of the valve plate (602). A connecting rod (604) is provided at the center of the upper end face of the valve stem (603). A control rod (605) is provided at the center of the upper end face of the connecting rod (604). A spiral blade (606) is provided at the center of the inside of the water conveying pipe (9).

2. The portable fire-fighting foam extinguishing device according to claim 1, characterized in that: The valve stem (603) passes through the inner wall of the valve body (601) and extends to the upper end face of the valve body (601), and is rotatably connected to the valve body (601) via a bearing.

3. The portable fire-fighting foam extinguishing device according to claim 1, characterized in that: The self-cleaning device (11) includes an air pump (1101), which is located at the center of one side of the connecting block (4). A three-way pipe (1102) is provided at the output end of the air pump (1101). A connector (1103) is provided at both output ends of the three-way pipe (1102). A connecting pipe (1104) is provided at the output ends of the two connectors (1103). A fixing ring (1105) is provided at the center of one inner side wall of the connecting cylinder (7).

4. A portable fire-fighting foam extinguishing device according to claim 3, characterized in that: The fixing ring (1105) has an annular inclined groove (1106) at the center of its inner wall.

5. A portable fire-fighting foam extinguishing device according to claim 3, characterized in that: The two connecting pipes (1104) are respectively connected to the inner wall of the fixing ring (1105) through the output end of the fixing ring (1105).

6. A portable fire-fighting foam extinguishing device according to claim 1, characterized in that: The input end of the foam liquid delivery pipe (5) passes through the upper surface of the foam liquid storage tank (3) and extends into the interior of the foam liquid storage tank (3), while the output end passes through the mixing adjustment device (6) and extends into the inner wall of the mixing adjustment device (6).

7. A portable fire-fighting foam extinguishing device according to claim 1, characterized in that: The output end of the water supply pipe (9) passes through the upper end face of the mixing cylinder (8) and extends to the inner wall of the mixing cylinder (8), and the input end is connected to the output end of the fire hydrant.

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