Puncture fire gun for fire fighting

Abstract

The utility model relates to the technical field of fire-fighting tools, in particular to a fire-fighting puncture fire gun which comprises a puncture rod, a plurality of water injection holes are formed in the puncture rod, a connecting pipe is fixed to the puncture rod, a positioning rod is fixed to the tail end of the puncture rod, a limiting plate is fixed to the positioning rod, and a knocking device is arranged on one side of the puncture rod. The knocking device comprises an impact pipe, a positioning hole assembled with the positioning rod in a matched mode is formed in the impact pipe, a supporting shaft is further fixed to the impact pipe, a supporting block rotationally connected with the supporting shaft is arranged on the supporting shaft, and a limiting block used in cooperation with the limiting plate is fixed to the supporting block. An arc-shaped groove is further formed in the tail end of the supporting block, a limiting ring in threaded connection with the impact pipe is arranged on the impact pipe, and a sliding groove is further formed in the portion, on one side of the positioning hole, of the impact pipe. The device can realize fire extinguishing operation in a sealed space.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment technology, and in particular to a piercing fire extinguisher for firefighting. Background Technology

[0002] In fires within confined spaces, conventional water hoses cannot deliver extinguishing agents to the ignition point, increasing the difficulty and time required for rescue operations, and impacting efficiency. Furthermore, they may pose dangers such as flashback and re-ignition. Once flashback occurs, the fire will rapidly intensify, severely damaging indoor items, causing building damage or even collapse, and posing a serious threat to firefighters arriving at the scene, thus hindering firefighting and rescue efforts. Flashback, due to its suddenness and powerful destructive force, threatens the safety of personnel, especially firefighters. The sudden pressure increase generated by flashback can cause the collapse of a partially enclosed space, and firefighters may also be injured by the sudden shockwave, flames, and hot smoke.

[0003] Patent application number CN202120194802.6 discloses a fire extinguishing device for an electric vehicle power battery, comprising a piercing end, a guide rod, and a striking end connected in sequence. The piercing end has a sharp structure at its tip for piercing the power battery casing and a water injection hole. The guide rod has a water passage inside and is connected to a fire hydrant interface for connecting to an external fire hydrant. The fire hydrant interface, water passage, and water injection hole are interconnected. When using this device for fire extinguishing, a hammer or other heavy object is used to strike the striking point of the fire extinguishing device until the piercing end penetrates the designated position. The fire hydrant interface of the device connects to an external fire hydrant to obtain fire water and inject water into the power battery to extinguish the fire. However, this device requires striking with a hammer or other heavy object, which cannot guarantee that the direction of force on the guide rod when the heavy object strikes it is consistent with the direction the piercing end needs to penetrate, i.e., it cannot guarantee that the piercing end will accurately and quickly reach the fire location.

[0004] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a piercing fire extinguisher for firefighting.

[0006] This invention can be achieved through the following technical solutions:

[0007] This invention discloses a piercing fire extinguisher for firefighting, comprising a piercing rod with multiple water injection holes, a connecting tube fixed to the piercing rod, a positioning rod fixed to the end of the piercing rod, a limiting plate fixed to the positioning rod, a striking device on one side of the piercing rod, the striking device comprising an impact tube, a positioning hole for assembly with the positioning rod, a support shaft fixed to the impact tube, a support block rotatably connected to the support shaft, a limiting block for use with the limiting plate fixed to the support block, an arc-shaped groove at the end of the support block, a limiting ring threadedly connected to the impact tube on the impact tube, a sliding groove on the impact tube on one side of the positioning hole, an impact rod slidably connected to the impact tube on the impact tube, and the impact rod fixed to the impact block in the sliding groove. When a fire breaks out in a confined space such as an aircraft cargo hold, the fire hose is secured to the connecting pipe, and the striking device is assembled with the piercing rod. The positioning rod is inserted into the positioning hole of the impact tube, and by rotating the support block, the support block rotates around the support shaft. After the limiting block locks the limiting plate, the limiting ring is rotated. Because the limiting ring is threaded to the impact tube, it moves on the impact tube as it rotates. The limiting ring then presses against the arc-shaped groove of the support block, fixing the support block in place. Once the support block is fixed, the piercing rod and striking device are secured. The piercing rod is then pressed against the cabin, and the impact rod is pulled, causing the impact block to move away from the positioning rod. Then, the impact is quickly... The impact rod is quickly pushed, the impact block moves, and the impact block collides with the positioning rod, thus inserting the piercing rod into the engine room. The fire extinguishing agent is discharged into the piercing rod through the fire hose, and then discharged through the water injection hole to extinguish the fire inside the engine room. This device can perform fire extinguishing operations in sealed spaces. Furthermore, by pushing the impact rod to collide with the positioning rod, the force direction of the positioning rod is consistent with the piercing direction of the piercing rod, ensuring the force of the piercing rod piercing the machine body, making it easier for the piercing rod to penetrate the machine body, and ensuring the direction of the piercing rod entering the machine body, so as to ensure that the piercing rod accurately reaches the fire point.

[0008] Preferably, the puncture rod has a sharp puncture head fixed at its front end.

[0009] Preferably, the connecting pipe is provided with an external thread that is assembled with the thread of the hose connector.

[0010] Preferably, a positioning ring is also provided on the impact tube at the end of the chute. The positioning ring can prevent the impact block from slipping out of the chute.

[0011] Preferably, a handle is also fixed to the end of the impact rod.

[0012] Compared with existing technologies, the present invention has the following advantages:

[0013] This device can perform fire extinguishing operations in sealed spaces. By pushing the impact block to collide with the positioning rod through the impact rod, it can ensure that the force direction of the positioning rod is consistent with the puncture direction of the puncture rod, thus ensuring the force of the puncture rod piercing the machine body and making it easier for the puncture rod to penetrate the machine body. It can also ensure the direction of the puncture rod entering the machine body, ensuring that the puncture rod accurately reaches the ignition point. Attached Figure Description

[0014] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the puncture rod of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the present invention from another angle;

[0018] Figure 4 for Figure 3 Sectional view at point AA;

[0019] Figure 5 for Figure 4 Enlarged view at point B in the middle;

[0020] In the diagram: 1. Puncture rod; 2. Water injection hole; 3. Connecting pipe; 4. Puncture head; 5. Striking device; 6. Impact tube; 7. Positioning rod; 8. Limiting plate; 9. Positioning hole; 10. Support shaft; 11. Support block; 12. Limiting block; 13. Arc groove; 14. Limiting ring; 15. Impact rod; 16. Handle; 17. Slide groove; 18. Impact block; 19. Water hose connector; Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0022] Example 1:

[0023] like Figures 1 to 5As shown in the figure, this embodiment discloses a fire extinguishing gun for fire fighting, including a piercing rod 1, a plurality of water injection holes 2 on the piercing rod 1, a connecting pipe 3 fixed on the piercing rod 1, a positioning rod 7 fixed at the end of the piercing rod 1, a limiting plate 8 fixed on the positioning rod 7, a striking device 5 on one side of the piercing rod 1, the striking device 5 including an impact tube 6, a positioning hole 9 on the impact tube 6 that is assembled with the positioning rod 7, a support shaft 10 fixed on the impact tube 6, a support block 11 rotatably connected to the support shaft 10, a limiting block 12 fixed on the support block 11 that is used in conjunction with the limiting plate 8, an arc groove 13 at the end of the support block 11, a limiting ring 14 threadedly connected to the impact tube 6, a sliding groove 17 on the impact tube 6 on one side of the positioning hole 9, an impact rod 15 slidably connected to the impact tube 6, and the impact rod 15 fixed to the impact block 18 in the sliding groove 17. When a fire breaks out inside a confined space such as an aircraft cargo hold, the fire hose is fixed to the connecting pipe 3, and the striking device 5 is assembled with the piercing rod 1. The positioning rod 7 is inserted into the positioning hole 9 of the impact tube 6. By rotating the support block 11, the support block 11 rotates around the support shaft 10. After the limiting block 12 locks the limiting plate 8, the limiting ring 14 is rotated. Since the limiting ring 14 is threadedly connected to the impact tube 6, the limiting ring 14 moves on the impact tube 6 when it rotates. After the limiting ring 14 presses against the arc groove 13 of the support block 11, the support block 11 is fixed. After the support block 11 is fixed, the piercing rod 1 and the striking device 5 are fixed. The piercing rod 1 is pressed against the cabin, and the impact rod 15 is pulled, causing the impact block 18 to move away. The positioning rod 7 moves, and then the impact rod 15 is quickly pushed, causing the impact block 18 to move. The impact block 18 collides with the positioning rod 7, thus inserting the piercing rod 1 into the engine room. The fire extinguishing agent is discharged into the piercing rod 1 through the fire hose, and then discharged through the water injection hole 2 to extinguish the fire inside the engine room. This device can perform fire extinguishing operations in sealed spaces. Furthermore, by pushing the impact block 18 with the positioning rod 7 through the impact rod 15, the force direction of the positioning rod 7 is consistent with the piercing direction of the piercing rod 1, ensuring the force of the piercing rod 1 piercing the engine body and making it easier for the piercing rod 1 to penetrate the engine body. It also ensures the direction in which the piercing rod 1 enters the engine body, ensuring that the piercing rod 1 accurately reaches the fire point.

[0024] The puncture rod 1 has a sharp puncture head 4 fixed at its front end.

[0025] The connecting pipe 3 is provided with an external thread that is threaded to assemble with the hose connector 19.

[0026] A positioning ring is also provided on the impact tube 6 at the end of the slide groove 17. The positioning ring can prevent the impact block 18 from slipping out of the slide groove 17.

[0027] Example 2:

[0028] This embodiment discloses a piercing fire extinguisher for firefighting. Based on the structure and principle of Embodiment 1, the end of the impact rod 15 in this embodiment is also fixed with a handle 16.

[0029] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A piercing fire extinguisher for firefighting, characterized in that, The device includes a puncture rod with multiple water injection holes, a connecting tube fixed to the puncture rod, a positioning rod fixed to the end of the puncture rod, a limit plate fixed to the positioning rod, a striking device on one side of the puncture rod, the striking device including an impact tube, a positioning hole for assembly with the positioning rod, a support shaft fixed to the impact tube, a support block rotatably connected to the support shaft, a limit block for use with the limit plate fixed to the support block, an arc-shaped groove at the end of the support block, a limit ring threadedly connected to the impact tube on the impact tube, a sliding groove on the impact tube on one side of the positioning hole, an impact rod slidably connected to the impact tube on the impact tube, and the impact rod fixed to the impact block in the sliding groove.

2. The piercing fire extinguishing lance according to claim 1, characterized in that: The puncture rod has a sharp puncture head fixed at its front end.

3. The fire-fighting piercing fire gun according to claim 1, characterized in that: The connecting pipe is provided with an external thread that is assembled with the thread of the hose connector.

4. The piercing fire extinguishing gun according to claim 1, characterized in that: A positioning ring is also provided on the impact tube at the end of the chute.

5. The piercing fire extinguishing gun according to claim 1, characterized in that: A handle is also fixed to the end of the impact rod.

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