Emergency window breaking fire extinguisher

Abstract

The emergency window breaking fire extinguisher comprises a fire extinguishing rod shell, a piezoelectric switch support and a storage bin arranged in the fire extinguishing rod shell and used for containing a fire extinguishing agent, the fire extinguishing rod shell is a telescopic cylindrical shell, blocking covers for sealing are arranged at the two ends of the fire extinguishing rod shell, and a front blocking piece is arranged at one end of the storage bin; the functions of compact storage and rapid unfolding are achieved through the sealed blocking covers arranged at the two ends of the fire extinguishing rod shell, and the portability of the fire extinguishing rod is improved through the cooperation with the material storage bin capable of stretching and retracting in the axial direction. The sliding groove for mounting the piezoelectric switch is formed in the stepped shaft, and the gland is arranged at the other end of the stepped shaft, so that the piezoelectric switch can be conveniently mounted and adjusted; the sliding groove and the pressing cover are used in a combined mode, it is ensured that the piezoelectric switch can be stably fixed in the using process, accurate positioning of the piezoelectric switch is ensured, and displacement of the piezoelectric switch when the piezoelectric switch is vibrated or impacted is prevented.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of fire-fighting equipment, in particular to an emergency window-breaking fire extinguisher. BACKGROUND

[0002] The statements herein are provided only to complement the background of the present disclosure and are not necessarily prior art.

[0003] At present, in a relatively narrow space, such as the interior of a family car or a kitchen with frequent open flames, a relatively conventional fire extinguisher is usually equipped. However, the conventional fire extinguisher has a large volume of a traditional pressure tank, which is difficult to place flexibly in a narrow environment, and needs to be regularly checked for a pressure gauge and to avoid tank rust, resulting in a high maintenance cost. In use, the powder sprayed by the conventional fire extinguisher is difficult to clean and may corrode the precision components in the car; high-pressure spraying may disturb the fire (such as an oil pan fire), and it is difficult to accurately control the spraying direction in a narrow space.

[0004] The existing patent CN220495458U proposes a portable telescopic fire extinguishing rod, which includes a rod shell for storing a fire extinguishing rod core in a cavity, a handle, an injection port is formed at one end of the rod shell and communicates with the cavity, and a fire starter is arranged between the injection port and the fire extinguishing rod core in the cavity. The fire extinguishing rod core is directly ignited by the fire starter, and after the fire extinguishing rod core burns, the fixed fire extinguishing gas is sprayed out of the injection port, thereby playing a role in extinguishing the fire in time. However, the problem of this design is that the design of the fire starter is similar to a passive ignition device, which needs a fire source to ignite the fire extinguishing rod core on the ignition rod or use the heat-sensitive wire on the fire starter to self-ignite to extinguish the fire. In the case of sudden outbreak of fire, it is impossible to timely suppress the outbreak of fire. Furthermore, the telescopic handle is made of stainless steel, aluminum or other commonly used metal materials. In the case of a fire in the car, high smoke concentration in the car and inability to open the car door, the car window glass cannot be broken, which may cause difficulty in breathing for the people in the car. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present disclosure is to provide an emergency window-breaking fire extinguisher, which can at least solve one of the above technical problems.

[0006] To achieve the above purpose, one or more embodiments of the present disclosure provide an emergency window-breaking fire extinguisher, which includes a fire extinguishing rod shell, a piezoelectric switch support, and a storage bin for placing a fire extinguishing agent in the fire extinguishing rod shell. The storage bin is a telescopic cylindrical structure, both ends of the fire extinguishing rod shell are provided with sealing covers, one end of the storage bin is provided with a front baffle, and the other end is provided with a positioning buckle connected with the piezoelectric switch support.

[0007] Further, the piezoelectric switch support is arranged in a stepped shaft, one end of the piezoelectric switch support is provided with a sliding groove for mounting a piezoelectric switch, and the other end is provided with a gland.

[0008] Further, the sliding groove is provided with a locking block for limiting the rotation of the storage bin.

[0009] Further, the piezoelectric switch is of a sliding structure, and the positioning buckle is used to limit the movement of the piezoelectric switch in the sliding groove.

[0010] Further, the fire extinguishing rod shell is further provided with a mounting slot for mounting a safety switch and an ignition switch.

[0011] Further, the safety switch slides on the mounting slot.

[0012] Further, the cover includes a front cover and a rear cover, the front cover is arranged at one end of the silicone plug, and the rear cover is arranged at one end of the window breaking hammer.

[0013] Further, one side of the front cover of the fire extinguishing rod shell is further provided with a fire extinguishing agent injection port.

[0014] Further, the piezoelectric switch is of a sliding structure, and the positioning buckle is used to limit the movement of the piezoelectric switch in the sliding groove.

[0015] Further, the front cover is provided with a silicone plug.

[0016] The beneficial effects of one or more of the above technical solutions are:

[0017] The compact storage and rapid deployment function is realized by the sealing cover arranged at both ends of the fire extinguishing rod shell, and the portability of the fire extinguishing rod is improved by the storage bin which can be axially extended and retracted. The piezoelectric switch is conveniently installed and adjusted by the sliding groove for mounting the piezoelectric switch arranged on the stepped shaft and the gland arranged at the other end. The piezoelectric switch is stably fixed during use by the combination of the sliding groove and the gland, which ensures the accurate positioning of the piezoelectric switch and prevents the piezoelectric switch from being displaced when subjected to vibration or impact. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of the present application form a part of the present application and serve to provide further understanding of the present application, the illustrative embodiments of the present application and the explanations thereof serve to explain the present application, and do not constitute limitations on the present application.

[0019] Figure 1 is a perspective view of the fire extinguishing rod in one or more embodiments of the present disclosure;

[0020] Figure 2 is a perspective view of the fire extinguishing rod in one or more embodiments of the present disclosure;

[0021] Figure 3 is a perspective view of the fire extinguishing rod in one or more embodiments of the present disclosure.

[0022] In the figure, 1, fire extinguishing rod shell; 2, front cover; 3, rear cover; 4, storage bin; 5, front baffle; 6, window breaking hammer; 7, silica plug; 8, piezoelectric switch; 9, piezoelectric switch support; 10, safety switch; 11, ignition switch; 12, gland; 13, locking block; 14, positioning buckle. DETAILED DESCRIPTION

[0023] As Figures 1-3 shown, the embodiment provides an emergency window breaking fire extinguisher, which comprises a fire extinguishing rod shell 1, a piezoelectric switch support 9 and a storage bin 4 for placing fire extinguishing agent in the fire extinguishing rod shell 1. The storage bin 4 is a telescopic cylindrical structure. The two ends of the fire extinguishing rod shell 1 are provided with sealing covers. One end of the storage bin 4 is provided with a front baffle 5, and the other end is provided with a positioning buckle 14 connected with the piezoelectric switch support 9. The compact storage and rapid deployment function is realized through the two end sealing covers, and the portability of the fire extinguishing rod is improved by cooperating with the axially telescopic storage bin 4.

[0024] Specifically, as Figure 1 and Figure 2 shown, the piezoelectric switch support 9 is arranged in a stepped shaft. One end of the piezoelectric switch support 9 is provided with a sliding groove for mounting the piezoelectric switch 8 on the stepped shaft, so as to facilitate the convenient installation and adjustment of the piezoelectric switch 8. The other end is provided with a gland 12. The sliding groove is used in combination with the gland 12 to ensure that the piezoelectric switch 8 can be stably fixed during use, to ensure the accurate positioning of the piezoelectric switch 8, and to prevent the piezoelectric switch 8 from being displaced when subjected to vibration or impact.

[0025] As Figure 1 and Figure 3 shown, a locking block 13 is arranged on the sliding groove to limit the rotation of the storage bin 4. The locking block arranged on the sliding groove and the storage bin 4 form a ratchet structure, which effectively inhibits the circumferential displacement of the fire extinguishing agent in the storage bin 4 during high-pressure injection, and ensures the stability of the directional injection path of the fire extinguishing agent.

[0026] The piezoelectric switch 8 is of a sliding type. The movement of the piezoelectric switch 8 in the sliding groove is limited by the positioning buckle. The sliding rail guide structure is used in combination with the positioning buckle limiting device to realize accurate control of the switch stroke and improve the operation reliability of the ignition system.

[0027] As Figure 3 shown, when the piezoelectric switch 8 is in close contact with the ignition switch 11, the start of the piezoelectric switch 8 is triggered by the ignition switch 11. The fire extinguishing rod shell 1 is also provided with mounting grooves for mounting the safety switch 10 and the ignition switch 11. The safety switch 10 is slid on the mounting groove to limit the movement of the ignition switch 11 and prevent the ignition switch from being accidentally touched.

[0028] The cap is provided with a window breaking hammer 6, the impact head of which is made of tungsten steel, which can ensure the structural strength and realize the window breaking effect with minimum impact energy threshold.

[0029] The cap includes a front cap 2 and a rear cap 3, the front cap 2 is provided with a silica plug 7, and the front cap 2 is arranged at one end of the silica plug 7 to form an elastic seal, and the rear cap 3 is arranged at one end of the window breaking hammer 6 to realize the emergency barrier breaking function.

[0030] The front cap of the fire extinguishing rod shell 1 is further provided with a fire extinguishing agent injection port, the fire extinguishing agent injection port is designed in a tapered flow channel, and forms a pressure focusing structure with the front cap 5, cooperates with the elastic reset characteristic of the silica plug 7, and significantly improves the initial injection kinetic energy of the fire extinguishing agent.

[0031] The working principle of the utility model is as follows:

[0032] In use, the front cap 2 is unscrewed, the fire extinguishing rod shell 1 is gradually stretched to the optimal fire extinguishing distance along the multi-stage telescopic structure, the safety switch 10 in the middle of the shell is slid to the unlocking position in a transverse manner, the stroke limit of the ignition switch 11 is released, a preliminary ignition state is formed, the piezoelectric switch 8 is pressed vertically by pressing the ignition switch 11, a high-voltage arc is triggered to ignite the starting agent, the pre-tightening force of the silica plug 7 at the front end of the storage bin 4 is simultaneously released, the pressurized fire extinguishing agent in the storage bin 4 forms a cluster flow through the tapered injection port, the fire source is covered in a directional manner through the conical angle of the flow guide groove of the front cap 5, and the fire source is directly acted on, so that the effect of quickly extinguishing the fire is achieved.

[0033] Although the specific embodiments of the present disclosure are described above in combination with the drawings, the description is not a limitation on the protection scope of the present disclosure, and those skilled in the art should understand that various modifications or changes made on the basis of the technical solutions of the present disclosure without creative labor are still within the protection scope of the present disclosure.

Claims

1. An emergency break window fire extinguisher, characterized by, The fire extinguishing rod shell, the piezoelectric switch support and the storage bin for placing fire extinguishing agent in the fire extinguishing rod shell are included, the storage bin is a telescopic cylindrical structure, the both ends of the fire extinguishing rod shell are provided with sealing covers, one end of the storage bin is provided with a front baffle, and the other end is provided with a positioning buckle connected with the piezoelectric switch support.

2. The emergency window-breaking fire extinguisher according to claim 1, characterized in that, The piezoelectric switch support is arranged in a stepped shaft, one end of the piezoelectric switch support is provided with a sliding groove for mounting a piezoelectric switch, and the other end is provided with a gland.

3. An emergency window-breaking fire extinguisher according to claim 2, characterized in that Locking blocks for limiting the rotation of the storage bin are arranged on the sliding groove.

4. The emergency window-breaking fire extinguisher according to claim 2, wherein The piezoelectric switch is a sliding structure, and the movement of the piezoelectric switch in the sliding groove is limited by the positioning buckle.

5. The emergency window-breaking fire extinguisher according to claim 1, wherein The fire extinguishing rod shell is also provided with mounting slots for safety switches and ignition switches.

6. An emergency window-breaking fire extinguisher according to claim 5, characterized in that The safety switches slide on the mounting slots.

7. The emergency window-breaking fire extinguisher according to claim 1, wherein The cover includes a front cover and a rear cover, the front cover is arranged at one end of the mounting silica plug, and the rear cover is arranged at one end of the mounting window breaking hammer.

8. The emergency window-breaking fire extinguisher according to claim 1, wherein The side of the fire extinguishing rod shell mounting the front cover is also provided with a fire extinguishing agent injection port.

9. The emergency window-breaking fire extinguisher according to claim 2, wherein The gland is provided with a window breaking hammer, and the window breaking hammer is selected from a tungsten steel impact head.

10. The emergency window-breaking fire extinguisher according to claim 1, characterized in that, The front baffle is provided with a silica plug.

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