Omni-directional injection handheld fire extinguisher

Abstract

The utility model relates to a fire extinguisher, in particular to an omni-directional jet handheld fire extinguisher which comprises a bottle body, a bottle opening and an inflation and deflation valve are arranged at the front end of the bottle body, a sealing cover is arranged on the bottle opening, a bag body is fixed on the rear side of the sealing cover, a drain valve is fixed on the front side of the sealing cover, an end cap is arranged at the front end of the bottle body, and a jet hole is formed in the front end wall of the end cap. A side rib extending backwards along the side wall of the bottle body is fixed to one side of the end cap, a containing groove is formed in the side rib, a grab handle capable of rotating and a trigger capable of sliding are limited in the containing groove, the trigger is in transmission connection with the liquid drainage valve through a pull wire, the bag body is filled with a liquid fire extinguishing agent, and the bottle body is filled with compressed gas. When the small fire extinguisher is used, the bottle body does not need to be placed in a specific direction, use is flexible, simple and convenient, the design conforms to ergonomics, operation is smooth, and effective utilization of a fire extinguishing agent is facilitated; the handheld fire extinguisher capable of spraying in all directions is small, compact, simple in appearance and suitable for being placed at a conspicuous position so as to be quickly taken and used in emergency.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing equipment technology, and in particular to an omnidirectional spray gun-type handheld fire extinguisher. Background Technology

[0002] Handheld fire extinguishers are common fire-fighting devices, typically consisting of a canister, handle, grip, and spray hose. The canister stores the extinguishing agent, and some types also require a propellant gas. Existing handheld fire extinguisher designs have certain shortcomings in use. They often have specific directional requirements; for example, carbon dioxide, mixed gas, and dry powder extinguishers need to be held vertically, while foam extinguishers require inverted placement. Improper directional adjustment often fails to achieve the desired extinguishing effect, making them inconvenient and inflexible to use.

[0003] Patent CN221431987U discloses a fire extinguisher capable of spraying at any angle. It features a bladder inside the cylinder to isolate the extinguishing agent from the propellant gas, eliminating the need for a specific direction of use and making it more convenient and flexible. However, while this extinguisher allows for easy adjustment of direction and angle, its traditional handheld design is ergonomically unsound, making adjustments difficult and significantly reducing its convenience and flexibility. Furthermore, the extinguisher's size cannot be adjusted, requiring considerable space when not in use for extended periods. Utility Model Content

[0004] To address the aforementioned technical problems in the existing technology, this utility model aims to provide an omnidirectional handheld fire extinguisher that is not subject to specific directional requirements during use, is easy to hold, and significantly improves convenience and flexibility. Furthermore, some components of the fire extinguisher can be folded to reduce the space occupied when not in use.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A handheld fire extinguisher with omnidirectional spray capability includes a bottle body, a bottle mouth and a filling / discharging valve at the front end of the bottle body, a cap at the bottle mouth connected to a bladder inside the bottle body, a drain valve connected to the bladder fixed to the front side of the cap, the bladder being filled with extinguishing agent, and compressed gas being filled between the bladder and the bottle body; characterized in that the front end of the bottle body is provided with an end cap, the front wall of the end cap having a spray hole connected to the outlet of the drain valve; a side rib is fixed to one side of the end cap, the side rib extending rearward along the side wall of the bottle body and fixedly connected to the side wall of the bottle body, a receiving groove is provided at the rear section of the side rib, the receiving groove defining a rotatable handle and a trigger that can slide back and forth, the trigger being connected to the valve core of the drain valve via a pull cable, and a receiving groove is provided on the handle, the handle being able to rotate into the receiving groove, after which the trigger is located in the receiving groove.

[0007] Furthermore, the front end of the drain valve is cylindrical, and the outlet is located at the center of the front end face; a plug-in seat is provided on the front end wall of the end cap, and the plug-in seat is plugged into and sealed with the front end of the drain valve, and the spray hole is connected to the outlet through the plug-in seat.

[0008] Furthermore, the front end of the bottle body is provided with a raised ring, and the rear end of the end cap is fitted onto the raised ring.

[0009] Furthermore, a three-way pipe communicating with the inner cavity of the bottle is fixed at the front end of the bottle body, the inflation / deflation valve is connected to one end of the three-way pipe, and a pressure gauge is connected to the other end of the three-way pipe.

[0010] Furthermore, the storage slot is provided with a slide block, which is fixedly connected to the bottle body or side ribs, and the trigger is limited by the slide block and can only slide back and forth.

[0011] Furthermore, the side rib is provided with a hand-held hole that passes through both sides of it.

[0012] Furthermore, the bottle body sidewall is provided with several protrusions, the side ribs are shell structures, the protrusions extend into the interior of the side ribs, and the protrusions and side ribs are fixedly connected by screws.

[0013] Furthermore, the capsule is in a blind tube shape in its natural state and its outer diameter is smaller than the inner diameter of the bottle mouth; a tube head extending into the bottle body is provided on the rear side of the cap, the front end of the capsule is sleeved and fixed outside the tube head, and the inside of the tube head is hollow, connecting the capsule body to the drain valve.

[0014] Furthermore, the filling / discharging valve consists of a valve body, a plug, and a return spring. The valve body is fixedly connected to the bottle body, and the valve body has a cylindrical cavity inside. One end of the cylindrical cavity communicates with the inner cavity of the bottle through a guide hole, and the other end of the cylindrical cavity communicates with the outside through a filling / discharging hole. The plug and the return spring are located inside the cylindrical cavity. A guide core that slides with the guide hole is fixed on the plug. The return spring is sleeved outside the guide core, and the plug is pushed by the return spring to seal the filling / discharging hole.

[0015] Furthermore, the handle is provided with an anti-slip part.

[0016] Compared with existing technologies, this omnidirectional handheld fire extinguisher has the following beneficial technical effects:

[0017] 1. This omnidirectional handheld fire extinguisher uses compressed gas to provide driving pressure for the extinguishing agent. However, the compressed gas and the extinguishing agent are located in two separate spaces. The compressed gas will not be discharged through the drain valve. Therefore, it is not necessary to place the cylinder in a specific direction when using it. The extinguishing agent can be sprayed normally in any direction, making it flexible and convenient to use.

[0018] 2. This omnidirectional handheld fire extinguisher is ergonomically designed. When using it, holding the omnidirectional handheld fire extinguisher in a gun-like posture allows for precise and flexible adjustment of the extinguishing agent's spray direction. The trigger can be used to conveniently and quickly adjust the spray state of the extinguishing agent according to the actual fire situation. It is easy to operate, effortless and convenient.

[0019] 3. This omnidirectional handheld fire extinguisher has a compact structure and simple appearance. The handle adopts a folding design, which takes up little space when not in use, making it extremely suitable for use in small places such as homes, offices, and cars. Attached Figure Description

[0020] Figure 1 This is one of the structural diagrams of this omnidirectional handheld fire extinguisher in its unused state.

[0021] Figure 2 This is the second schematic diagram of the structure of this omnidirectional handheld fire extinguisher in its unused state.

[0022] Figure 3 This is a diagram showing the state when the handle is unscrewed from the storage slot.

[0023] Figure 4 This is a structural diagram of a handheld fire extinguisher with omnidirectional spray capability in use.

[0024] Figure 5 This is a schematic diagram of the bottle's structure.

[0025] Figure 6 This is a schematic diagram of the inflation / deflation valve.

[0026] Figure 7 This is a schematic diagram showing the assembly of the capsule, the drain valve, and the trigger.

[0027] Figure 8 This is a schematic diagram of the structure of the capsule and the drain valve after partial cross-section.

[0028] Figure 9 This is a schematic diagram showing the assembly of the capsule, drain valve, trigger, and bottle.

[0029] Figure 10 This is a schematic diagram of the structure of the capsule, the drain valve, and the bottle after partial cross-section.

[0030] Figure 11 This is a structural diagram of the end cap, side ribs, and handle.

[0031] Figure 12 This is a schematic diagram showing the fit between the end cap, side ribs, and bottle body.

[0032] Figure 13 This is a schematic diagram showing the state of the fire extinguishing agent inside the bladder after it has been emptied.

[0033] Figure 14 A schematic diagram of the structure of this omnidirectional handheld fire extinguisher after adding a pressure gauge.

[0034] Figure 15 This is a schematic diagram showing the assembly of the pressure gauge, inflation / deflation valve, end cap, and bottle body.

[0035] In the diagram, 1. Bottle body, 2. End cap, 3. Spray hole, 4. Handhold hole, 5. Side rib, 6. Anti-slip part, 7. Storage groove, 8. Handle, 9. Rotating shaft, 10. Trigger, 11. Slide, 12. Storage groove, 13. Protrusion, 14. Bottle mouth, 15. Boss, 16. Inflation / discharge valve, 161. Plug, 162. Inflation / discharge hole, 163. Valve body, 164. Column cavity, 165. Return spring, 166. Guide core, 167. Guide hole, 17. Pull wire, 171. Core wire, 172. Sleeve, 18. Liquid outlet, 19. Drain valve, 20. Cap, 21. Bag body, 22. Valve core, 23. Thrust spring, 24. Tube head, 25. Plug socket, 26. Pressure gauge, 27. Through hole, 28. T-connector, 29. Insertion hole. Detailed Implementation

[0036] See Figure 1 , 5 As shown, this utility model discloses an omnidirectional handheld fire extinguisher, which includes a bottle body 1. The bottle body 1 is made of metal and is slender and cylindrical. The front end of the bottle body 1 is provided with a bottle opening 14 communicating with its inner cavity and a filling / discharging valve 16; see reference. Figure 7-10 As shown in Figure 13, a sealing cap 20 is installed on the bottle mouth 14, sealing the bottle mouth 14. The cap 20 and the bottle mouth 14 can be fixedly connected by conventional methods such as threads or snaps. A capsule 21 is fixedly connected to the rear side of the cap 20. The capsule 21 is made of flexible material and is located in the bottle body 1. When the capsule 21 is empty, the capsule 21 can be removed from or placed into the bottle body 1 by holding the cap 20. A drain valve 19 is fixed to the front side of the cap 20. The drain valve 19 communicates with the inner cavity of the capsule 21. The front end of the drain valve 19 has a liquid outlet 18. The drain valve 19 has a valve core 22 and a thrust spring 23. The valve core 22 can slide within the drain valve 19 to adjust the on / off working state of the drain valve 19. The thrust spring 23 can drive the valve core 22 to reset so that the drain valve 19 returns to the closed state. See also Figure 1-4As shown in Figures 11 and 12, the front end of the bottle body 1 is provided with a cylindrical end cap 2. The end cap 2 covers the drain valve 19, the cap 20, and the inflation / deflation valve 16 at the front end of the bottle body 1. The outer diameter of the end cap 2 and the bottle body 1 are the same. The front end of the end cap 2 is provided with a front wall, and a spray hole 3 is opened at the center of the front wall. The spray hole 3 is connected to the outlet 18 at the front end of the drain valve 19. A side rib 5 is fixedly connected to one side of the end cap 2. The side rib 5 extends rearward along the side wall of the bottle body 1 and is fixedly connected to the side wall of the bottle body 1. The front face of the side rib 5 and the end cap 2 are flush, and the rear face of the side rib 5 and the bottle body 1 are flush. A storage groove 7 is opened at the rear section of the side rib 5, near the rear end. A handle 8 and a trigger 10 are defined in the storage groove 7. The trigger 10 can... The trigger 10 and valve core 22 are connected by a pull cable 17, allowing the trigger 10 to slide back and forth. Pulling the trigger 10 backward can move the valve core 22 to open the drain valve 19. The pull cable 17 extends inside the side rib 5 and the end cap 2. The handle 8 is rotatably connected to the side rib 5 via a rotating shaft 9, allowing the handle 8 to rotate in the storage groove 7. A receiving groove 12 is provided on the handle 8. Rotating the handle 8 allows it to be stored in the storage groove 7, at which time the trigger 10 is located in the receiving groove 12. Rotating the handle 8 allows it to stand upright on one side of the bottle body 1, at which time the handle 8 is located behind the trigger 10. The bladder 21 is filled with liquid extinguishing agent, such as water-based extinguishing agent, foam extinguishing agent, 7150 extinguishing agent, and other commonly used extinguishing agents. The space between the bladder 21 and the bottle body 1 is filled with compressed gas, which can be air, carbon dioxide, or inert gas.

[0037] The working principle and usage of this omnidirectional handheld fire extinguisher are as follows:

[0038] See Figure 1 , 2 As shown, when this omnidirectional handheld fire extinguisher is not in use, the handle 8 is rotated into the storage slot 7, and the trigger 10 is blocked by the handle 8, which is equivalent to having a safety mechanism to prevent the trigger 10 from being accidentally pulled to avoid the fire extinguishing agent being sprayed. In this state, the omnidirectional handheld fire extinguisher has no loose parts or protruding parts on the outside, and its shape is very regular, beautiful and generous. It can be placed upright or lying down in a position that is easy to quickly pick up and put away.

[0039] See Figure 3 , 4As shown in Figure 12, when using this omnidirectional handheld fire extinguisher, unscrew the handle 8 from the storage slot 7 and rotate it to stand upright on one side of the cylinder 1. Hold the handle with one hand and hook your finger on the trigger 10, while supporting the side rib 5 with the other hand. This allows you to hold the omnidirectional handheld fire extinguisher stably in a gun-like position, aligning the front end of the end cap 2 (i.e., the spray nozzle 3) with the fire. Pull the trigger 10 to move the valve core 22, switching the drain valve 19 from the closed state to the open state. The liquid extinguishing agent inside the capsule 21 is pressurized by the compressed air inside the cylinder 1 and discharged through the drain valve 19. The liquid is discharged through valve 19 and sprayed through nozzle 3 to the fire in front, thereby achieving the fire extinguishing effect. Since the bladder 21 is made of flexible material, its cavity shrinks as the extinguishing agent is discharged under the pressure of compressed gas, thereby ensuring that the extinguishing agent is continuously discharged until it is completely discharged. After the fire is extinguished, the trigger 10 is released, and the valve core 22 will be driven by the thrust spring 23 to return to the initial position. At this time, the drain valve 19 returns to the closed state, that is, the extinguishing agent stops spraying. During the reset movement of the valve core 22, the trigger 10 will be driven by the pull cable 17 to perform the corresponding reset movement.

[0040] After use, this omnidirectional handheld fire extinguisher can be replenished with extinguishing agent and compressed gas using existing technology. Specifically, when replenishing the extinguishing agent, first use the filling / discharging valve 16 to empty the compressed gas in the cylinder 1. Then, use the trigger 10 to switch and keep the drain valve 19 open. Liquid extinguishing agent can be filled into the cylinder 21 through the spray hole 3 or the outlet 18 of the drain valve 19. After the extinguishing agent is replenished, release the trigger 10 to return the drain valve 19 to the closed state. Use the filling / discharging valve 16 to inject compressed gas of appropriate pressure into the cylinder 1, thus completing the replenishment of extinguishing agent and compressed gas. At this time, the omnidirectional handheld fire extinguisher returns to normal and can be used again. If the compressed gas pressure is insufficient due to long-term storage, the step of replenishing the extinguishing agent can be omitted, and only the compressed gas in the cylinder 1 can be replenished in the aforementioned way.

[0041] See Figure 10 As shown, this omnidirectional handheld fire extinguisher uses compressed gas to provide driving pressure for the extinguishing agent. However, the compressed gas and the extinguishing agent are located in two separate spaces. The compressed gas will not be discharged through the drain valve 19. Therefore, it is not necessary to place the cylinder 1 in a specific direction when using it. The extinguishing agent can be sprayed normally and stably in any direction, making it more flexible and convenient to use.

[0042] See Figure 4 , 12As shown, the design of this omnidirectional handheld fire extinguisher conforms to ergonomics. When using it, holding the omnidirectional handheld fire extinguisher in a gun-like posture allows for precise and flexible adjustment of the extinguishing agent's spray direction. Using the trigger 10, the spraying state of the extinguishing agent, such as spraying, stopping, and spraying speed, can be conveniently and quickly adjusted according to the actual fire situation. It is easy to control, convenient to operate, labor-saving, and quick, which is conducive to the effective and full utilization of the extinguishing agent.

[0043] This omnidirectional handheld fire extinguisher is reusable. When the internal extinguishing agent and compressed gas become insufficient due to use or long-term storage, they can be replenished accordingly. The overall cost of use is low, and the replenishment of extinguishing agent and compressed gas is very simple and can be achieved using conventional equipment and common methods in existing technology.

[0044] See Figure 1-4 As shown, this omnidirectional handheld fire extinguisher has a novel and unique structure. The handle 8 adopts a rotating design, and when not in use, the handle 8 is folded and stored in the storage slot 7. In this state, the external parts of this omnidirectional handheld fire extinguisher are free of loose parts and protruding parts, and the shape is very neat and beautiful. It can be placed vertically or horizontally. After the handle 8 is stored in the storage slot 7, it can cover the trigger 10 to prevent the trigger 10 from being pulled accidentally. Therefore, there is no need to set an additional safety mechanism for the trigger 10, which makes the structure of this omnidirectional handheld fire extinguisher simpler and easier to implement.

[0045] Based on the aforementioned features of this omnidirectional handheld fire extinguisher, it is extremely suitable for use in small places such as homes, offices, and cars. It can be placed in a conspicuous location and can be quickly accessed in the event of a fire.

[0046] See Figure 5 , 7 As shown in Figures 11 and 12, in the above-disclosed omnidirectional handheld fire extinguisher, the front end of the drain valve 19 is cylindrical, and the outlet 18 is located at the center of the front end face; a plug-in seat 25 is provided on the front wall of the end cap 2, and the plug-in seat 25 is plugged into and sealed with the front end of the drain valve 19; the spray hole 3 is connected to the outlet 18 through the plug-in seat 25; a ring of bosses 15 is provided on the front end of the bottle body 1, and the rear end of the end cap 2 is fitted onto the bosses 15; based on this design, on the one hand, the spray hole 3 and the outlet 18 are connected through a simple structure, and the sealing of the connection is achieved; on the other hand, the end cap 2 and the front end of the bottle body 1 are connected by a plug-in combination, the plug-in seat 25 and the front end of the drain valve 19 are connected by a plug-in combination, and the side rib 5 is fixedly connected to the end cap 2 and the bottle body 1, thereby ensuring the connection stability of the end cap 2 and the bottle body 1, and making it easy to assemble and disassemble the end cap 2 and the bottle body 1.

[0047] See Figure 4 , 7As shown in Figures 8 and 9, in the above-disclosed omnidirectional handheld fire extinguisher, a slide 11 is provided in the storage slot 7. The slide 11 is fixedly connected to the bottle body 1 or the side rib 5. The trigger 10 is limited by the slide 11 and can only slide back and forth. The pull cable 17 is composed of a sleeve 172 and a core wire 171. The two ends of the sleeve 172 are fixedly connected to the slide 11 and the drain valve 19, respectively. The two ends of the core wire 171 are fixedly connected to the valve core 22 and the trigger 10, respectively. In the above structure, the cooperation method and working principle of the trigger 10, the pull cable 17 and the drain valve 19 are consistent with the existing bicycle braking mechanism.

[0048] See Figure 5 , 11 As shown in Figure 12, in the above-disclosed omnidirectional handheld fire extinguisher, the side wall of the bottle body 1 is provided with several protrusions 13, the side rib 5 is a shell structure, the protrusions 13 extend into the interior of the side rib 5, and the protrusions 13 and the side rib 5 are fixedly connected by screws; the side rib 5 is provided with a handheld hole 4 that passes through both sides of it. When holding this omnidirectional handheld fire extinguisher, the hand supports the lower side of the handheld hole 4, and the fingers can grasp the lower edge of the handheld hole 4, which makes it easier to hold and apply force. In addition, the handheld hole 4 can be used to place this omnidirectional handheld fire extinguisher in a hanging manner, such as hanging it on the wall, making the placement method more flexible.

[0049] See Figure 3 , 4 As shown, in the above-disclosed omnidirectional handheld fire extinguisher, the groove walls on both sides of the storage groove 7 are recessed towards the direction of the bottle body 1, thereby fully exposing the trigger 10 and facilitating the gripping of the handle 8.

[0050] See Figure 8 , 13 As shown, in the above-disclosed omnidirectional handheld fire extinguisher, the bladder 21 is made of elastic material and is in the shape of a blind tube in its natural state, with its outer diameter being smaller than the inner diameter of the bottle mouth 14; the cap 20 has a tube head 24 extending into the bottle body 1 on its rear side, and the front end of the bladder 21 is fitted and fixed outside the tube head 24. The tube head 24 is hollow inside and connects the bladder 21 to the drain valve 19; based on this design, the bladder 21 can be easily taken out or put into the bottle body 1 along with the cap 20, making the assembly of components such as the bottle body 1, cap 20 and bladder 21 more convenient and quick, and reducing the processing and manufacturing difficulty of this omnidirectional handheld fire extinguisher.

[0051] See Figure 1-4As shown, in the above-disclosed omnidirectional handheld fire extinguisher, the handle 8 is provided with an anti-slip part 6, which on the one hand ensures that it is not easy to slip when holding the handle 8, and on the other hand, the handle can be easily rotated out of the storage groove 7 with the help of the anti-slip part 6. When implementing this omnidirectional handheld fire extinguisher, a damping component can be provided between the handle 8 and the side rib 5 to prevent the handle 8 from rotating during unintentional operation. Alternatively, a positioning mechanism can be provided between the handle 8 and the side rib 5 to ensure that the handle 8 can be stably kept in the adjusted position.

[0052] See Figure 5 , 6 As shown, in the above-disclosed omnidirectional handheld fire extinguisher, the filling / discharging valve 16 is composed of a valve body 163, a plug 161, and a return spring 165. The valve body 163 is fixedly connected to the cylinder 1, and a cylindrical cavity 164 is provided inside the valve body 163. One end of the cylindrical cavity 164 communicates with the inner cavity of the cylinder 1 through a guide hole 167, and the other end of the cylindrical cavity 164 communicates with the outside through a filling / discharging hole 162. The plug 161 and the return spring 165 are located inside the cylindrical cavity 164. A guide core 166 that slides with the guide hole 167 is fixed on the plug 161. The return spring 165 is sleeved on the guide core 166, and the plug 161 is formed by the return spring. The filling and discharging hole 162 is blocked by pushing the plug 165. The filling and discharging valve 16 adopts the above design to facilitate and quickly perform filling and discharging operations. Specifically, a special high-pressure filling device is sealed to the filling and discharging hole 162. The high-pressure gas generated by the high-pressure filling device can push the plug 161 open and then enter the bottle body 1 through the column cavity 164 and the guide hole 167. After the filling stops, the plug 161 is pushed by the return spring 165 to block the filling and discharging hole 162, that is, the filling and discharging valve 16 automatically returns to the closed state. When discharging, the plug 161 is pushed by a tool, and then the gas in the bottle body 1 will be discharged to the outside through the guide hole 167, the column cavity 164, and the filling and discharging hole 162.

[0053] In the aforementioned omnidirectional handheld fire extinguisher, the extinguishing agent is driven by the pressure of compressed gas. Leaks in the compressed gas are usually difficult to observe visually. If the internal pressure of the cylinder is insufficient due to leakage, the extinguishing agent will not achieve the expected spraying effect during use. Therefore, this invention addresses this problem with the following improvements:

[0054] See Figure 14 , 15As shown, a three-way pipe 28 communicating with the inner cavity of the cylinder body 1 is fixed at the front end. The inflation / deflation valve 16 is fixed at one end of the three-way pipe 28 and communicates with the inner cavity of the cylinder body 1 through the three-way pipe 28. A pressure gauge 26 for monitoring the compressed gas pressure inside the cylinder body 1 is installed at the other end of the three-way pipe 28. A through hole 27 is opened on the front wall of the end cap 2, and the pressure gauge 26 is located in the through hole 27. An insertion hole 29 is opened on the side wall of the end cap 2, and the inflation / deflation valve 16 is located at the insertion hole 29. When inflation / deflation is performed, the tool can pass through the insertion hole 29 and cooperate with the inflation / deflation valve 16. Based on the above design, this omnidirectional handheld fire extinguisher maintains the characteristics of an externally indirect and regular design, and at the same time has the function of gas pressure display, which can avoid the omnidirectional handheld fire extinguisher from being unable to be used normally due to insufficient pressure inside the cylinder.

Claims

1. A handheld fire extinguisher with omnidirectional spray capability, comprising a bottle body, a bottle opening and a filling / discharging valve at the front end of the bottle body, a cap installed at the bottle opening, the cap being connected to a bladder located inside the bottle body, and a drain valve communicating with the bladder being fixed to the front side of the cap; characterized in that, The bottle has an end cap at the front end, and a spray hole communicating with the outlet of the drain valve is provided on the front wall of the end cap. A side rib is fixed on one side of the end cap. The side rib extends backward along the side wall of the bottle and is fixedly connected to the side wall of the bottle. A storage groove is provided at the rear section of the side rib. A rotatable handle and a trigger that can slide back and forth are defined in the storage groove. The trigger is connected to the valve core of the drain valve via a pull wire. A receiving groove is provided on the handle. The handle can be rotated into the receiving groove, and then the trigger is located in the receiving groove.

2. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: The front end of the drain valve is cylindrical, and the outlet is located at the center of the front end face; the front end wall of the end cap is provided with a plug-in seat, which is plugged into and sealed with the front end of the drain valve, and the spray hole is connected to the outlet through the plug-in seat.

3. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: The front end of the bottle body is provided with a raised ring, and the rear end of the end cap is fitted onto the raised ring.

4. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: A three-way pipe communicating with the inner cavity of the bottle is fixed at the front end of the bottle body. The inflation / deflation valve is connected to one end of the three-way pipe, and a pressure gauge is connected to the other end of the three-way pipe.

5. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: The storage slot is equipped with a slide block, which is fixedly connected to the bottle body or side rib. The trigger is limited by the slide block and can only slide back and forth.

6. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: The side rib is provided with a hand-held hole that passes through both sides of it.

7. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: The bottle body has several protrusions on its side wall. The side ribs are shell structures, with the protrusions extending into the side ribs. The protrusions and side ribs are fixedly connected by screws.

8. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: The capsule is in a blind tube shape in its natural state and its outer diameter is smaller than the inner diameter of the bottle mouth; the cap has a tube head extending into the bottle body on the rear side, the front end of the capsule is sleeved and fixed outside the tube head, and the inside of the tube head is hollow, connecting the capsule to the drain valve.

9. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: The filling / discharging valve consists of a valve body, a plug, and a return spring. The valve body is fixedly connected to the bottle body. The valve body has a cylindrical cavity inside. One end of the cylindrical cavity is connected to the inner cavity of the bottle through a guide hole, and the other end of the cylindrical cavity is connected to the outside through a filling / discharging hole. The plug and the return spring are located inside the cylindrical cavity. A guide core that slides with the guide hole is fixed on the plug. The return spring is sleeved outside the guide core. The plug is pushed by the return spring to seal the filling / discharging hole.

10. The omnidirectional handheld fire extinguisher according to claim 1, characterized in that: The handle is provided with an anti-slip part.

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