Fire extinguisher capable of being circularly filled and used

Abstract

The utility model relates to the technical field of fire extinguishing equipment, in particular to a fire extinguisher capable of being circularly filled and used, which comprises a bottle body, a pressure gauge and an injection device, an overflow component is arranged on the side wall of the bottle body and is used for circularly filling fire extinguishing agents into the bottle body, and an inflation component is arranged at the top of the bottle body. The bottle body is filled with air and pressurized through the air inflation assembly, the pressure gauge is installed on the bottle body and displays the pressure in the bottle body, and the spraying device is installed on the top of the bottle body and sprays out pressurized fire extinguishing agents in the bottle body. And the fire extinguisher can be conveniently refilled and pressurized after the fire extinguishing agent is used up or the pressure is insufficient, so that the fire extinguisher can be recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a fire extinguisher that can be recharged and used cyclically. Background Art

[0002] In the fire protection sector, fire drills are a key step in testing and improving fire safety assurance capabilities. Disposable fire extinguishers are typically used in traditional fire drill scenarios. While these disposable fire extinguishers can initially meet basic firefighting demonstration needs, their limitations have become increasingly apparent as drills become more frequent and the emphasis on fire safety continues to increase. After each fire drill, if the extinguishing agent in a disposable fire extinguisher is exhausted or the pressure is insufficient, a new fire extinguisher must be purchased. This is undoubtedly a significant expense for large enterprises, schools, communities, and other places where fire drills are frequently conducted. Furthermore, the disposal of disposable fire extinguishers after use also incurs additional costs.

[0003] Under current technological trends, refillable fire extinguishers have been mass-produced and used. However, these extinguishers still have some areas for improvement. Refillable fire extinguishers require specific refilling locations. Furthermore, the refilling process for existing refillable fire extinguishers requires high operator skills. Refilling operations require professional training, including correctly connecting the filling equipment and accurately adjusting the filling pressure. Non-professional operation can lead to refill failures and even safety accidents.

[0004] Therefore, there is an urgent need for a rechargeable fire extinguisher that is easy to operate, flexible to use, not restricted by the filling location, reduces the difficulty of operation, has efficient and stable fire extinguishing performance, is safe and durable. Utility Model Content

[0005] In response to the above problems, the present invention provides a recyclable fire extinguisher. An overflow assembly and an inflation assembly are arranged on the fire extinguisher. The overflow assembly includes a specially designed overflow valve joint and a ball valve. The ball valve is used to control the connection between the fire extinguishing agent filling device and the tank body. The fire extinguishing agent filling device inputs the fire extinguishing agent into the tank body through the overflow assembly. After the fire extinguishing agent is input, the tank body is pressurized through the inflation assembly. In addition, a pressure gauge is provided, which can feedback the pressure value in real time to ensure that the pressure is within a safe and effective range. This design enables the fire extinguishing agent to be ejected from the injection device at a certain flow rate and pressure, thereby achieving efficient fire extinguishing during the fire extinguishing process, and conveniently refilling and pressurizing after the fire extinguishing agent is exhausted or the pressure is insufficient, thereby realizing the recycling of the fire extinguisher.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A recyclable fire extinguisher comprising a bottle, a pressure gauge and a spray device;

[0008] Tank body (1), control valve (2), pressure gauge (3) and injection device (4);

[0009] A water injection hole (11) and an overflow assembly are provided on the side wall of the bottle body. The overflow assembly is used to circulate and fill the fire extinguishing agent into the bottle body. A filling assembly (12) is provided at the water injection hole (11). The filling assembly (12) is connected to an external filling pipe. An inflation assembly is provided on the top of the bottle body. After water is injected into the tank body (1) through the water injection hole (11), the bottle body is inflated and pressurized through the inflation assembly.

[0010] The pressure gauge is mounted on the bottle body, and displays the pressure in the bottle body. The spray device is mounted on the top of the bottle body, and sprays the pressurized fire extinguishing agent in the bottle body, so that water can be sprayed out from the spray device (4) at a certain flow rate and pressure.

[0011] The control valve (2) is arranged at the top of the tank body (1), the control valve (2) is sealedly connected to the tank body (1), the control valve (2) is extended from the tank mouth into the tank body (1), the pressure gauge (3) is arranged on one side of the control valve (2), the control valve (2) is sealedly connected to the injection device (4), and the connection and disconnection between the inside of the tank body (1) and the injection device (4) are controlled by the control valve (2).

[0012] As an improvement, the overflow assembly comprises an overflow valve joint and a ball valve adapted to the water injection hole (11); the overflow valve joint is mounted on the side wall of the bottle body and tightly connected to the water injection hole (11); the overflow valve joint is communicated with the interior of the bottle body;

[0013] The ball valve is connected to the overflow valve joint, and the ball valve controls the on-off of the bottle body and the external fire extinguishing agent filling device, thereby adjusting the connection state between the inside of the tank body (1) and the external filling pipeline.

[0014] As an improvement, the overflow valve joint is installed at 3 / 4 of the height of the bottle body.

[0015] As an improvement, the inflation assembly includes a high-pressure inflation valve and an inflation connector, wherein the high-pressure inflation valve is a one-way valve and is installed on the bottle body;

[0016] The inflation connector (132) is vertically mounted on the tank body (1) and extends outwards. The inflation connector is sealed and connected to the high-pressure inflation valve and extends outwards from the high-pressure inflation valve. The inflation connector is connected to an external inflation device, and the pressurized inflation gas in the bottle enters the tank body (1) through the high-pressure inflation valve (131).

[0017] As an improvement, the injection device control valve (2) includes a suction pipe, a fire extinguisher head, a hose and a nozzle;

[0018] The straw is vertically arranged in the bottle body, and the top of the straw is connected to the fire extinguisher head;

[0019] The fire extinguisher head is arranged on the top of the bottle body, and a control valve is provided at the connection position between the fire extinguisher head and the suction pipe;

[0020] The rubber hose is connected to the fire extinguisher head and extends outward from the fire extinguisher head;

[0021] The spray head is mounted on a water diversion pipe (21) provided in the tank body at the end portion of the hose extending outward, and a control assembly (22) provided at the tank mouth. The water diversion pipe (21) is connected to the control assembly (22), and the control assembly (22) is connected to the spray device (4). The control assembly (22) includes a rotating handle (221) and a safety pin (222) passing through the rotating handle (221). The safety pin (222) limits the rotation of the rotating handle (221). The rotation of the rotating handle (221) drives a valve core to adjust the communication state between the tank body (1) and the spray device (4).

[0022] As an improvement, the fire extinguisher head is a portable fire extinguisher head, and a safety cap is provided on the fire extinguisher head.

[0023] As an improvement, a filtering device is provided at the lower end of the suction pipe, and the filtering device is used to filter impurities in the fire extinguishing agent.

[0024] The beneficial effects of the present invention are:

[0025] (1) Due to the recyclable refill feature, the utility model greatly reduces the long-term use cost compared with traditional disposable fire extinguishers. After the fire extinguishing medium in the fire extinguisher is used up or the pressure is insufficient, the fire extinguisher can be refilled and pressurized by simply operating the provided filling assembly and inflation assembly to restore it to a usable state without the need to purchase a new fire extinguisher.

[0026] (2) The recyclable design of the utility model reduces the waste of fire extinguisher shells and other parts, because the shells can be reused, avoiding a large amount of solid waste generated by the scrapping of fire extinguishers, helping to save resources and reduce landfill pressure on the environment;

[0027] (3) The rechargeable fire extinguisher of the present invention can be refilled and used repeatedly. If the performance of the fire extinguisher deteriorates, the user can promptly detect the deterioration and carry out targeted maintenance or component replacement. This allows the fire extinguisher to maintain good performance throughout its entire life cycle and provide reliable fire extinguishing protection.

[0028] In summary, the utility model has the advantages of high reuse rate, no restriction on filling location and strong practicality, and is particularly suitable for the technical field of fire extinguishing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the fire extinguisher of the utility model.

[0030] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0031] Figure 3 This is a schematic diagram of the partial structure of the fire extinguisher of the utility model;

[0032] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0033] Figure 5 This is a schematic diagram of the partial structure of the fire extinguisher bottle of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0037] Example:

[0038] like Figures 1 to 5 As shown, a recyclable fire extinguisher includes a bottle body 1, a pressure gauge 2 and a spray device 3;

[0039] Tank body (1), control valve (2), pressure gauge (3) and injection device (4);

[0040] A water injection hole (11) and an overflow component 11 are provided on the side wall of the bottle body 1. The overflow component 11 is used to circulate and fill the fire extinguishing agent into the bottle body 1. A filling component (12) is provided at the water injection hole (11). The filling component (12) is connected to an external filling pipe. An inflation component 12 is provided on the top of the bottle body 1. After water is injected into the tank body (1) through the water injection hole (11), the bottle body 1 is inflated and pressurized through the inflation component 12.

[0041] The pressure gauge 2 is mounted on the bottle body 1, and displays the pressure in the bottle body 1. The spray device 3 is mounted on the top of the bottle body 1, and sprays the pressurized fire extinguishing agent in the bottle body 1, so that water can be sprayed out from the spray device (4) at a certain flow rate and pressure.

[0042] The control valve (2) is arranged at the top of the tank body (1), the control valve (2) is sealedly connected to the tank body (1), the control valve (2) is extended from the tank mouth into the tank body (1), the pressure gauge (3) is arranged on one side of the control valve (2), the control valve (2) is sealedly connected to the injection device (4), and the connection and disconnection between the inside of the tank body (1) and the injection device (4) are controlled by the control valve (2).

[0043] Among them, the pressure gauge 2 can monitor the pressure situation in the bottle body 1 in real time. The operator can judge whether the fire extinguishing agent in the bottle body is in a pressure state that can be used normally according to the pressure value displayed by the pressure gauge 2, and control the degree of inflation during the inflation and pressurization process to avoid the impact of excessive or low pressure on the use of the fire extinguisher.

[0044] Furthermore, the overflow assembly 11 includes an overflow valve joint 111 and a ball valve 112 adapted to the water injection hole (11). The overflow valve joint 111 is mounted on the side wall of the bottle body 1 and is tightly connected to the water injection hole (11). The overflow valve joint 111 is connected to the interior of the bottle body 1. The overflow valve joint 111 serves as a key component for connecting the interior and exterior of the bottle body. One end of the overflow valve joint 111 is sealed with the side wall of the bottle body 1, so that the fire extinguishing agent can flow smoothly into the bottle body 1, thereby ensuring the sealing of the interior of the bottle body 1.

[0045] The ball valve 112 is connected to the overflow valve joint 111. The ball valve 112 controls the opening and closing of the bottle body 1 and the external fire extinguishing agent filling device, thereby adjusting the connection state between the inside of the tank body (1) and the external filling pipeline.

[0046] Among them, the overflow valve joint 111 is installed at 3 / 4 height of the bottle body 1. When the fire extinguishing agent is filled, as the fire extinguishing agent continuously flows into the bottle body 1, the liquid level in the bottle gradually rises. When the liquid level reaches 3 / 4 position of the bottle body height, the filling amount at this time is close to the safe filling upper limit of the bottle body. Installing the overflow valve joint 111 at this position helps to maintain the relative stability of the pressure in the bottle during the filling process. When the fire extinguishing agent is filled to 3 / 4 height, the excess fire extinguishing agent can flow out through the overflow valve joint 111, thereby ensuring the accuracy and safety of filling.

[0047] It should be noted that the volume of the bottle body 1 is 4±0.2L, the volume of the fire extinguishing agent is 2.85-3L, the preset pressure of the bottle body 1 is 1.2-1.4MPa, and the operating temperature range of the fire extinguisher is -20℃-60℃.

[0048] Furthermore, the inflation assembly 12 includes a high-pressure inflation valve 121 and an inflation connector 122. The high-pressure inflation valve 121 is a one-way valve installed on the bottle body 1. The high-pressure inflation valve 121 only allows gas to enter the bottle body from the outside, while preventing the gas inside the bottle from flowing out in the opposite direction. This ensures that during the inflation process, the gas filled into the bottle body 1 can be effectively preserved, the pressure in the bottle is maintained, and the pressure drop caused by gas leakage is avoided, thereby ensuring the normal use of the fire extinguisher.

[0049] The inflation connector (132) is vertically mounted on the tank body (1) and extends outward. The inflation connector 122 is sealed and connected to the high-pressure inflation valve 121 to prevent gas leakage from the connection during the inflation process. The inflation connector 122 is extended outward from the high-pressure inflation valve 121. The inflation connector 122 is connected to an external inflation device to pressurize and inflate the bottle body 1. The outward extension design of the high-pressure inflation valve 121 facilitates the connection operation with the external inflation device, so that the external inflation device can be more easily docked with the inflation component 12. The high-pressure gas provided by the external inflation device enters the bottle body 1 through the inflation connector 122 and the high-pressure inflation valve 121, so that the pressure in the bottle gradually increases until it reaches a preset pressure range, so that the fire extinguisher is in a state that can be used normally. The gas enters the tank body (1) through the high-pressure inflation valve (131).

[0050] In addition, the control valve (2) of the spray device 3 includes a suction pipe 31, a fire extinguisher head 32, a hose 33 and a spray head 34;

[0051] The straw 31 is vertically arranged in the bottle body 1, and the top of the straw 31 is connected to the fire extinguisher head 32;

[0052] The fire extinguisher head 32 is provided at the top of the bottle body 1. A control valve is provided at the connection position between the fire extinguisher head 32 and the suction pipe 31. The control valve can control the flow of the fire extinguishing agent from the suction pipe 31 into the fire extinguisher head 32. When the control valve is opened, the fire extinguishing agent enters the fire extinguisher head 32 through the suction pipe under the action of the internal pressure of the bottle body. When the control valve is closed, the flow of the fire extinguishing agent is blocked, thereby stopping the spraying.

[0053] The hose 33 is connected to the fire extinguisher head 32 and extends outward from the fire extinguisher head 32. The hose has a certain flexibility and can be bent and adjusted in different usage scenarios. The extension design allows the user to operate the fire extinguisher within a certain distance range, making it convenient to extinguish fires at different locations.

[0054] The nozzle 34 is installed at the end portion of the hose 33 extending outward. The design of the nozzle 34 has a key influence on the spraying effect of the fire extinguishing agent. It can atomize the fire extinguishing agent or form a specific spray shape, so that the fire extinguishing agent can cover the fire source more evenly and effectively, thereby improving the fire extinguishing efficiency. A water diversion pipe (21) is arranged in the tank body and a control component (22) is arranged at the tank mouth. The water diversion pipe (21) is connected to the control component (22), and the control component (22) is connected to the spraying device (4). The control component (22) includes a rotating handle (221) and a safety pin (222) passing through the rotating handle (221). The safety pin (222) limits the rotation of the rotating handle (221). The rotation of the rotating handle (221) drives the valve core to adjust the communication state between the tank body (1) and the spraying device (4).

[0055] It should be noted that the fire extinguisher head 32 is a portable fire extinguisher head, and a safety cap 321 is provided on the fire extinguisher head 32. The safety cap 321 plays a role of safety protection. When the fire extinguisher is not in use, the safety cap 321 can prevent the control valve of the fire extinguisher head from being accidentally touched, causing the fire extinguishing agent to be accidentally sprayed out, ensuring the safety of the fire extinguisher during transportation, storage and non-emergency use, avoiding unnecessary waste of fire extinguishing agent and possible accidental damage to the surrounding environment and personnel. When the fire extinguisher needs to be used to extinguish a fire, the user needs to first remove the safety cap 321, and then operate the control valve of the fire extinguisher head 32 so that the fire extinguishing agent can be sprayed out normally.

[0056] Furthermore, a filter device 311 is provided at the lower end of the suction pipe 31. The filter device 311 is used to filter impurities in the fire extinguishing agent. The filter device 311 effectively protects the various components inside the fire extinguisher. If impurities enter the injection device 3, these components may be clogged, worn or damaged, thereby affecting the normal use and fire extinguishing effect of the fire extinguisher. The provision of the filter device 311 greatly reduces this risk and improves the reliability and service life of the fire extinguisher.

[0057] Working process: filling is carried out through the overflow component 11 on the side wall of the bottle body 1, the overflow valve joint 111 in the overflow component 11 is connected to the inside of the bottle body, the external fire extinguishing agent filling device is connected to the overflow valve joint 111, and the ball valve 112 at the connection part controls the on-off. During filling, the fire extinguishing agent enters the bottle body. When the liquid level reaches 3 / 4 of the height of the bottle body, the excess fire extinguishing agent can overflow through the overflow valve joint 111 and the ball valve 112 to ensure that the filling amount is within a reasonable range (2.85-3L). During inflation, the inflation component 12 on the top of the bottle body 1 is used, and the external inflation device is connected to the inflation joint 122. The gas enters the bottle body 1 through the one-way high-pressure inflation valve 121. By observing the real-time display value of the pressure gauge 2, the pressure in the bottle reaches the preset 1.2-1.4MPa. When in use, remove the safety cap 321 on the fire extinguisher head 32, open the control valve at the connection position of the fire extinguisher head 32 and the suction pipe 31, and under the action of the internal pressure of the bottle body 1, the fire extinguishing agent is transmitted upward from the bottle body 1 through the suction pipe 31. The filter device 311 at the lower end of the suction pipe 31 filters out impurities in the fire extinguishing agent. The fire extinguishing agent passes through the fire extinguisher head 32 and the hose 33 to reach the nozzle 34 for spraying.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A recyclable fire extinguisher comprising a bottle (1), a pressure gauge (2) and a spraying device (3), characterized in that: An overflow assembly (11) is provided on the side wall of the bottle body (1), and the overflow assembly (11) is used to circulate and fill the fire extinguishing agent into the bottle body (1). An inflation assembly (12) is provided on the top of the bottle body (1), and the bottle body (1) is inflated and pressurized through the inflation assembly (12); The pressure gauge (2) is mounted on the bottle body (1), and the pressure gauge (2) displays the pressure in the bottle body (1). The spray device (3) is mounted on the top of the bottle body (1), and the spray device (3) sprays the pressurized fire extinguishing agent in the bottle body (1).

2. A recyclable fire extinguisher according to claim 1, characterized in that: The overflow assembly (11) comprises an overflow valve joint (111) and a ball valve (112); the overflow valve joint (111) is mounted on the side wall of the bottle body (1); the overflow valve joint (111) is in communication with the interior of the bottle body (1); The ball valve (112) is connected to the overflow valve joint (111), and the ball valve (112) controls the connection and disconnection between the bottle body (1) and the external fire extinguishing agent filling device.

3. A recyclable fire extinguisher according to claim 2, characterized in that: The overflow valve joint (111) is installed at 3 / 4 of the height of the bottle body (1).

4. The recyclable fire extinguisher according to claim 1, characterized in that: The inflation assembly (12) comprises a high-pressure inflation valve (121) and an inflation connector (122); the high-pressure inflation valve (121) is a one-way valve, and the high-pressure inflation valve (121) is mounted on the bottle body (1); The inflation connector (122) is sealedly connected to the high-pressure inflation valve (121) and is extended outward from the high-pressure inflation valve (121). The inflation connector (122) is connected to an external inflation device to pressurize and inflate the bottle body (1).

5. The recyclable fire extinguisher according to claim 1, characterized in that: The spraying device (3) includes a suction pipe (31), a fire extinguisher head (32), a hose (33) and a spray head (34); The suction tube (31) is vertically arranged in the bottle body (1), and the top of the suction tube (31) is connected to the fire extinguisher head (32); The fire extinguisher head (32) is arranged on the top of the bottle body (1), and a control valve is provided at the connection position between the fire extinguisher head (32) and the suction pipe (31); The rubber hose (33) is connected to the fire extinguisher head (32), and the rubber hose (33) extends outward from the fire extinguisher head (32); The nozzle (34) is mounted on the end portion of the hose (33) extending outward.

6. The recyclable fire extinguisher according to claim 5, characterized in that: The fire extinguisher head (32) is a portable fire extinguisher head, and a safety cap (321) is provided on the fire extinguisher head (32).

7. The recyclable fire extinguisher according to claim 5, characterized in that: A filtering device (311) is provided at the lower end of the suction pipe (31), and the filtering device (311) is used to filter impurities in the fire extinguishing agent.

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