CN214181532U

CN214181532U - Fire extinguishing bomb with multiple ignition leads

Info

Publication number: CN214181532U
Application number: CN202022808461.5U
Authority: CN
Inventors: 曾绍文
Original assignee: Individual
Current assignee: Beijing Weizhun Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-14
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a fire extinguishing bomb with multiple ignition leads, which comprises a cylindrical fire extinguishing bomb body, the fire extinguishing bomb body comprises a central tube of an inner layer and an outer shell, a main lead and gunpowder are arranged in the central tube, yellow mud, sawdust and a bottom plug are arranged in the central tube from top to bottom in a layering manner, the gunpowder is positioned between the sawdust and the bottom plug, one end of the main lead is connected with the gunpowder, the other end of the main lead passes through the sawdust and the yellow mud and extends to the outer side of the fire extinguishing bomb body, fire extinguishing powder is arranged between the shell and the central tube, the shell comprises a cylindrical shell body, a top cover and a bottom cover for plugging the top end and the bottom end of the shell body, the other end of the main lead passes through the top cover and extends to the outer side of the fire extinguishing bomb body, a boss is formed on the bottom cover, the boss is inserted into the bottom end of the central tube and abutted against the bottom plug, the other end of the main lead is divided into multiple ignition leads, the multiple ignition leads surround the central tube and are distributed in an annular array manner, at least two of the plurality of ignition fuses burn at different rates.

Description

Fire extinguishing bomb with multiple ignition leads

Technical Field

The utility model belongs to the technical field of the fire control is put out a fire, concretely relates to fire extinguishing bomb, especially relate to a fire extinguishing bomb of multiple spot wire.

Background

The loss of fire to people is very heavy, so that fire extinguishing equipment is required to extinguish a fire timely, quickly and safely. Therefore, it appears that fire extinguishing devices are increasingly used in the field of fire fighting, and are commonly used in unattended areas or in areas with scarce personnel.

The utility model discloses a utility model patent application number is "201820797258.2" discloses a novel pull ring throw formula fire extinguishing bomb, including the pull ring, the copper wire extension spring, and the shell of cuboid form and the inner shell of tube-shape, be equipped with the powder of putting out a fire between shell and the inner shell, the cap and the ignition lead wire of drawing fire, the inside pyrotechnic composition that is equipped with of inner shell, be equipped with copper core igniter in the cap of drawing fire, the one end at the copper wire extension spring is fixed to the pull ring, form the friction portion of holding in the cap of drawing fire after the other end of copper wire extension spring passes the shell, the cap of drawing fire is close on to the one end of ignition lead wire, pyrotechnic composition is connected to the other end of ignition lead wire, still include reserve lead wire, reserve lead wire's one end closes on the ignition lead wire, reserve lead wire's the other end passes the shell and pastes the outer wall extension of shell.

And the utility model patent with application number "201820797529.4" provides a novel handle-type hand-throwing pull ring firing fire extinguishing bomb, which comprises a central cylinder, a pull ring and a copper wire tension spring, wherein a fire pulling cap, an ignition lead and a pyrotechnic composition are arranged inside the central cylinder, a copper core ignition composition is arranged in the fire pulling cap, a grab handle is formed at the upper end of the central cylinder, a shell is sleeved at the lower end of the central cylinder, fire extinguishing powder is arranged between the shell and the central cylinder, the pull ring is fixed at one end of the copper wire tension spring, the other end of the copper wire tension spring passes through the top wall of the central cylinder to form a friction part accommodated in the fire pulling cap, one end of the ignition lead is close to the fire pulling cap, and the other end of the ignition lead is connected with the pyrotechnic composition; still include reserve lead wire, reserve lead wire's one end is close to the ignition lead wire, reserve lead wire's the other end and paste the roof extension of center section of thick bamboo.

The fire extinguishing bomb in the prior art and the above patent technology is only provided with one ignition lead, although the design of the spare lead is provided, the spare lead mainly plays a role of spare, therefore, for a person skilled in the art, how to provide a fire extinguishing bomb with multiple ignition leads, the fire extinguishing bomb comprises multiple ignition leads, the combustion speed of at least two ignition leads in the multiple ignition leads is different, so that different ignition leads can be ignited according to different requirements, and the fire extinguishing bomb can be detonated in different time.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough that exists among the prior art, the utility model aims to provide a fire extinguishing bomb of multiple ignition lead wire, this fire extinguishing bomb includes many ignition lead wires, and the burning rate of two piece at least ignition lead wires is different among many ignition lead wires, can ignite different ignition lead wires like this according to different needs for the fire extinguishing bomb is detonated in the time that can be different.

In order to solve the technical problem, the utility model provides a fire extinguishing bomb with multiple ignition leads, which comprises a cylindrical fire extinguishing bomb body, wherein the fire extinguishing bomb body comprises an inner layer central tube and an outer layer shell, a main lead and gunpowder are arranged in the central tube, yellow mud, sawdust and a bottom plug are arranged in the central tube from top to bottom in a layering manner, the gunpowder is arranged between the sawdust and the bottom plug, one end of the main lead is connected with the gunpowder, the other end of the main lead passes through the sawdust and the yellow mud and extends to the outer side of the fire extinguishing bomb body, fire extinguishing powder is arranged between the shell and the central tube, the shell comprises a cylindrical shell body, a top cover and a bottom cover, the top cover and the bottom cover are used for plugging the top end and the bottom end of the shell body, the other end of the main lead passes through the top cover and extends to the outer side of the fire extinguishing bomb body, a boss is formed on the bottom cover, and the boss is inserted into the bottom end of the central tube and abutted against the bottom plug, the other end of the main lead is divided into a plurality of ignition leads, the ignition leads surround the central tube and are distributed in an annular array, and the combustion speeds of at least two ignition leads in the ignition leads are different.

In one aspect of the fire extinguishing bomb, at least one of the ignition leads is a fast fuse and at least one of the ignition leads is a slow fuse.

As an improvement of one aspect of the fire extinguishing bomb, the main lead is a fast fuse.

As an improvement of the fire extinguishing bomb, the burning speeds of any two ignition leads in the plurality of ignition leads are different.

As an improvement of the fire extinguishing bomb, the outer surfaces of any two ignition leads in the plurality of ignition leads are different in color.

As an improvement of the fire extinguishing bomb, the shell is made of high-temperature-resistant calcium carbonate synthetic material.

As an improvement of the fire extinguishing bomb in one aspect, the fire extinguishing powder is an ultrafine dry powder fire extinguishing agent.

As an improvement of one aspect of the fire extinguishing bomb, the top cover is of a step structure, the top cover comprises an extending cover with a smaller diameter and a connecting cover with a larger diameter, the connecting cover is located between the shell body and the extending cover, the diameter of the connecting cover is consistent with that of the shell body, an annular sleeve cover is formed on the bottom end edge of the bottom cover along the circumferential direction of the bottom cover, the annular sleeve cover and the extending cover are correspondingly located and matched in shape, and when two fire extinguishing bomb bodies are stacked up and down, the extending cover of the lower fire extinguishing bomb body is inserted into the annular sleeve cover of the upper fire extinguishing bomb body so as to mutually limit respective play.

As an improvement of one aspect of the fire extinguishing bomb, the cross section of the extending cover is elliptical or polygonal; the annular sleeve cover is provided with a plurality of weight-reducing ventilation through holes along the circumferential direction; the overhanging cover is provided with a plurality of weight-reducing blind holes along the circumferential direction, the weight-reducing blind holes correspond to the weight-reducing ventilation through holes in part number, and when the overhanging cover of the lower fire extinguishing bomb body is inserted into the annular sleeve cover of the upper fire extinguishing bomb body, the weight-reducing blind holes are overlapped with the weight-reducing ventilation through holes in part number; the height of the overhanging cover is smaller than that of the annular sleeve cover, when the overhanging cover of the lower fire extinguishing bomb body is inserted into the annular sleeve cover of the upper fire extinguishing bomb body, an accommodating space for accommodating an ignition lead is formed between the annular sleeve cover and the overhanging cover, and part of the weight-reduction ventilation through holes are communicated with the accommodating space.

As an improvement of one aspect of the fire extinguishing bomb, the outer wall of the shell body is alternately provided with convex parts and concave parts which correspond in position and are matched in shape along the circumferential direction, and when two fire extinguishing bomb bodies are horizontally placed, the convex part of one fire extinguishing bomb body is inserted into the concave part of the other fire extinguishing bomb body so as to mutually limit the respective horizontal movement.

The utility model discloses following beneficial effect has: the utility model provides a fire extinguishing bomb of multiple ignition lead wire, on the one hand, for the main lead wire of convenient ignition, the other end of main lead wire falls into many ignition lead wires, many ignition lead wires center on the center tube distributes and is annular array, and the quantity of ignition lead wire can be two, three … …, and is preferred, and the quantity of ignition lead wire is four. Therefore, the fire extinguishing bomb can be ignited by igniting any one ignition lead, and the occurrence of the condition of no explosion is reduced or avoided. On the other hand, the burning speeds of at least two ignition leads in the plurality of ignition leads are different, and because the burning speeds of at least two ignition leads in the plurality of ignition leads are different, different ignition leads can be ignited according to different requirements, so that the fire extinguishing bomb can be detonated in different time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a fire extinguishing bomb according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a fire extinguishing bomb according to an embodiment of the present invention.

Fig. 3 is a schematic view showing a plurality of fire extinguishing bombs of fig. 2 stacked up and down.

Fig. 4 is a schematic structural view of a plurality of fire extinguishing bombs horizontally arranged according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a plurality of fire extinguishing bombs horizontally arranged according to still another embodiment of the present invention.

Fig. 6 is a schematic structural view of an embodiment of the annular cover of the present invention.

Fig. 7 is a schematic structural view of the annular cap and the overhanging cap of the present invention.

In the drawings:

1-central tube 2-main lead 3-powder

4-yellow mud 5-sawdust 6-bottom plug

7-fire extinguishing powder 8-shell body 9-top cover

10-bottom cover 11-overhanging cover 12-connecting cover

13-annular sleeve cover 14-ignition lead 15-weight-reduction ventilation through hole

16-weight-reducing blind hole 17-accommodating space 18-bulge

19-concave part

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve.

In the description of the present invention, it should be noted that, as the terms "upper", "lower", "side", "bottom", "top", "center", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does 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 thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that unless otherwise explicitly specified and limited, the specific meaning of the above terms in the present invention can be specifically understood by those of ordinary skill in the art.

Examples

As shown in fig. 1 to 7, the utility model provides a fire extinguishing bomb with multiple ignition leads, which comprises a cylindrical fire extinguishing bomb body, wherein the fire extinguishing bomb body comprises a central tube 1 with an inner layer and an outer shell, a main lead 2 and a gunpowder 3 are arranged in the central tube 1, yellow mud 4, sawdust 5 and a bottom plug 6 are arranged in the central tube 1 from top to bottom in a layering manner, the gunpowder 3 is located between the sawdust 5 and the bottom plug 6, one end of the main lead 2 is connected with the gunpowder 3, the other end of the main lead 2 passes through the sawdust 5 and the yellow mud 4 and extends to the outer side of the fire extinguishing bomb body, fire extinguishing powder 7 is arranged between the shell and the central tube 1, the shell comprises a cylindrical shell body 8, a top cover 9 and a bottom cover 10 for sealing the top end and the bottom end of the shell body 8, and the other end of the main lead 2 passes through the top cover 9 and extends to the outer side of the fire extinguishing bomb body, the bottom cover 10 is formed with a boss, and the boss is inserted into the bottom end of the central tube 1 and abuts against the bottom plug 6.

In the above-mentioned embodiment, be equipped with main lead wire 2 just in the center tube 1 from top to bottom the layering is equipped with yellow mud 4, saw dust 5, end stopper 6 in the center tube 1, powder 3 is located saw dust 5 with between the end stopper 6, powder 3 is connected to main lead wire 2's one end, the other end of main lead wire 2 passes saw dust 5, yellow mud 4 and extends the outside of fire extinguishing bomb body, and end stopper 6 also can be yellow colour mud. As an optimal arrangement mode of the main lead 2, the main lead 2 sequentially penetrates through yellow mud 4, sawdust 5 and gunpowder 3 and then is embedded into the bottom plug 6, the main lead 2 is fixed in the bottom plug 6, and the production operation process can greatly improve the production efficiency of workers. For the convenience of assembly, the shell includes cylindric casing body 8, top cap 9 and bottom 10 that are used for the top of shutoff casing body 8, bottom, the other end of main lead 2 passes top cap 9 and extends to the outside of fire extinguishing bomb body, be formed with the boss on the bottom 10, the bottom butt end stopper 6 that the boss inserted center tube 1. Optionally, the top cover 9 and the bottom cover 10 are bonded with the shell body 8 and the central tube 1 by glue instead of being fixed by iron nails or hard objects, so that the method is safe and environment-friendly.

The other end of the main lead 2 is divided into a plurality of ignition leads 14, the ignition leads 14 refer to pyrotechnic products for ignition, fire transmission and time control, the ignition leads 14 surround the central tube 1 and are distributed in an annular array, and the combustion speed of at least two ignition leads 14 in the ignition leads 14 is different.

The utility model provides a fire extinguishing bomb of multiple ignition lead 14, on the one hand, for the main lead 2 of conveniently igniting, the other end of main lead 2 falls into many ignition leads 14, many ignition leads 14 center on center tube 1 and be the annular array and distribute, and ignition lead 14's quantity can be two, three … …, and is preferred, and ignition lead 14's quantity is four. Thus, the fire extinguishing bomb can be ignited by igniting any one ignition lead 14, and the occurrence of the condition of no explosion is reduced or avoided. On the other hand, the burning speeds of at least two ignition leads 14 in the plurality of ignition leads 14 are different, and the burning speeds of at least two ignition leads 14 in the plurality of ignition leads 14 are different, so that different ignition leads 14 can be ignited according to different requirements, and the fire extinguishing bomb can be detonated in different time.

Specifically, optionally, at least one ignition lead 14 in the plurality of ignition leads 14 is a fast ignition lead, at least one ignition lead 14 is a slow ignition lead, the slow ignition lead may be a timing ignition lead or a safe ignition lead or a paper ignition lead, and the fast ignition lead may be a kraft fast ignition lead or a waterproof fast ignition lead or a safe fast ignition lead. In order to make the detonation time of the fire extinguishing bomb mainly determined by the ignition fuse 14, the main fuse 2 is a fast fuse.

In a preferred embodiment, the combustion rates of any two of the ignition leads 14 in the plurality of ignition leads 14 are different, such that the fire extinguishing bomb can have a plurality of detonation control times, and the outer surfaces of any two of the ignition leads 14 in the plurality of ignition leads 14 are colored differently to facilitate distinguishing the combustion rates of the ignition leads 14.

Preferably, the powder 3 comprises four powder components of potassium perchlorate, sulfur, flute tone agent and military powder. Wherein, potassium perchlorate is called fast potassium, is white powder or colorless orthorhombic crystal, is inorganic substance, and needs to be sealed and stored in shade. The density was 2.52g/cm 3. Melting point 610 ℃. Molecular weight 138.55. Can be dissolved in water 1.5g/100g, is difficult to dissolve in ether and ethanol, has stable property compared with potassium chlorate, and can be decomposed into potassium chloride and oxygen at melting point. Can be used as smoke agent, ignition agent, oxidant and chemical analysis reagent. Sulfur is also called sulfur, colloidal sulfur, sulfur block. The appearance is light yellow brittle crystal or powder, and has special odor. The molecular weight was 32.06, the vapor pressure was 0.13kPa, the flash point was 207 ℃, the melting point was 118 ℃, the boiling point was 444.6 ℃, and the relative density (water ═ 1) was 2.0. Sulfur is insoluble in water, slightly soluble in ethanol and ether, and easily soluble in carbon disulfide. As a flammable solid, sulfur is mainly used for manufacturing dyes, pesticides, matches, gunpowder, rubber, rayon and the like. The flute sound agent is also called whistle drug, and commonly used materials comprise potassium hydrogen terephthalate, potassium hydrogen phthalate, sodium hydrogen phthalate and the like. Compared with the traditional explosive formula, the formula of the utility model comprises four powder components of potassium perchlorate, sulfur, whistling agent and military powder, and compared with the prior art, the gunpowder 3 of the utility model is not so sensitive, has better stability and is convenient for production, storage and transportation; on the other hand, the explosive force is uniform, so that the fire extinguishing effect can be ensured to a certain extent, and the human body is not damaged. In a more preferred embodiment, the powder 3 comprises 70 parts by weight of potassium perchlorate, 10 parts by weight of sulfur, 10 parts by weight of whistling agent and 10 parts by weight of military powder. If the formula of the fire powder 3 is subjected to single material decomposition according to a proportion, the fire powder 3 can be decomposed into four kinds of powder, namely 70% of potassium perchlorate, 10% of whistle agent, 10% of military powder and 10% of sulfur, if the quantity of the fire powder 3 of a single fire extinguishing bomb is 1.0 g, the potassium perchlorate powder is 0.7 g, the whistle agent powder is 0.10 g, the military powder is 0.10 g, the sulfur powder is 0.10 g, and the grades of the four chemical materials are all special-grade specifications.

Preferably, the fire extinguishing powder 7 is an ultra-fine dry powder fire extinguishing agent. Preferably, the superfine dry powder extinguishing agent is a solid powder extinguishing agent with 90% of particle size less than or equal to 20 microns. The superfine dry powder extinguishing agent is proved to be one of the extinguishing agents found at home and abroad, the extinguishing concentration is lowest, the extinguishing efficiency is highest and the extinguishing speed is highest. The unit volume fire extinguishing efficiency is 2-3 times of that of a Halon fire extinguishing agent, 6-10 times of that of a common dry powder fire extinguishing agent, more than 10 times of that of a heptafluoropropane fire extinguishing agent and 15 times of that of carbon dioxide. The ozone depletion potential value ODP of the atmosphere is zero, the greenhouse effect potential value GWP is zero, and the ozone depletion potential value GWP has no stimulation to human skin, no corrosion to a protective object, and no toxicity or harm. The residues after fire extinguishing are easy to clean, and people in a fire scene can not be poisoned or suffocated to die. Meanwhile, the storage period can reach 3 years, and frequent replacement and maintenance are not needed. In the embodiment, the gas energy of the gunpowder 3 and the superfine dry powder extinguishing agent are used for double extinguishment, and A-type, B-type and C-type fire disasters are instantly extinguished at a long distance.

In a preferred embodiment, the top cover 9 is a step structure, the top cover 9 comprises an outer extending cover 11 with a smaller diameter and a connecting cover 12 with a larger diameter, the connecting cover 12 is located between the shell body 8 and the outer extending cover 11, the diameter of the connecting cover 12 is the same as that of the shell body 8, the bottom end edge of the bottom cover 10 is formed with an annular sleeve cover 13 along the circumference, the annular sleeve cover 13 and the outer extending cover 11 are correspondingly located and matched in shape, when two fire extinguishing bomb bodies are stacked up and down, the outer extending cover 11 of the lower fire extinguishing bomb body is inserted into the annular sleeve cover 13 of the upper fire extinguishing bomb body, similar to a snap fit connection, so as to limit the respective play, and the annular sleeve cover 13 is abutted against the top surface of the connecting cover 12.

In the above embodiment, the top cover 9 has a step structure, the top cover 9 includes an extending cover 11 with a smaller diameter and a connecting cover 12 with a larger diameter, the connecting cover 12 is located between the housing body 8 and the extending cover 11, the diameter of the connecting cover 12 is the same as that of the housing body 8, an annular cover 13 is formed at the bottom edge of the bottom cover 10 along the circumferential direction, the annular cover 13 and the extending cover 11 are correspondingly positioned and matched in shape, when two fire extinguishing bomb bodies are stacked up and down, the extending cover 11 of the lower fire extinguishing bomb body is inserted into the annular cover 13 of the upper fire extinguishing bomb body to limit respective play, so that collision between adjacent fire extinguishing bombs in the up and down direction can be limited to a certain extent, and the technical problem of collision damage between adjacent fire extinguishing bombs during transportation can be improved, make the utility model discloses a fire extinguishing bomb possesses certain collision resistance, for the fire extinguishing bomb among the relevant prior art, the utility model discloses a fire extinguishing bomb is convenient for transport more, and simple structure, and the implementation cost is lower.

It can be understood that the opposite surfaces of the overhanging cover 11 and the annular cover 13 may have certain elasticity, such as being provided with rubber layers, that is, the opposite surfaces of the overhanging cover 11 and the annular cover 13 are provided with rubber layers, so that the overhanging cover 11 and the annular cover 13 may have a moderate interference fit, which is beneficial to better limit the respective axial play of the adjacent fire extinguishing bombs.

Specifically, optionally, the cross section of the overhanging cover 11 is elliptical or polygonal, and correspondingly, the contour line of the inner wall of the annular sleeve cover 13 is also elliptical or polygonal. The overhanging cover 11 and the annular sleeve cover 13 in the elliptical or polygonal structure can limit axial movement between adjacent fire extinguishing bombs in the vertical direction, and can limit respective circumferential rotation, thereby being more beneficial to improving the technical problem of collision and damage between adjacent fire extinguishing bombs in the transportation process. More preferably, magnets for generating attraction force are provided on the opposite surfaces of the overhanging cover 11 and the annular sleeve cover 13.

In a preferred embodiment, the outer wall of the shell body 8 is alternately provided with convex portions 18 and concave portions 19 which correspond in position and match in shape along the circumferential direction, and when two fire extinguishing bomb bodies are horizontally placed, the convex portion 18 of one fire extinguishing bomb body is inserted into the concave portion 19 of the other fire extinguishing bomb body so as to mutually limit the respective horizontal movement. So, overhanging cover 11 with annular housing cover 13 cooperation restriction axial float between the adjacent fire extinguishing bomb, the horizontal float between the adjacent fire extinguishing bomb of bulge 18 and the cooperation restriction of concave part 19 is favorable to more limiting the relative position between the adjacent fire extinguishing bomb, make full use of fire extinguishing bomb self gravity for interlocking between the adjacent fire extinguishing bomb, simple structure, implementation cost is lower. More preferably, magnets for generating attraction force are provided on the facing surfaces of the overhanging cover 11 and the annular sleeve cover 13, and the protruding portion 18 and the recessed portion 19. Specifically, optionally, the cross section of the protruding portion 18 is elliptical or polygonal, and the protruding portion 18 and the recessed portion 19 of the elliptical or polygonal structure can limit horizontal movement between adjacent fire extinguishing bombs in the horizontal direction and can limit respective circumferential rotation, so that the technical problem of collision damage between adjacent fire extinguishing bombs in the transportation process can be improved.

It can be understood that the opposing surfaces of the convex portion 18 and the concave portion 19 may have certain elasticity, such as a rubber layer, that is, the opposing surfaces of the convex portion 18 and the concave portion 19 are provided with a rubber layer, so that the convex portion 18 and the concave portion 19 may have a moderate interference fit, which is beneficial to better limit the horizontal movement of the adjacent fire extinguishing bombs.

In a specific embodiment, as shown in fig. 5, the number of the convex portions 18 and the concave portions 19 of each fire extinguishing bomb is four, the four convex portions 18 and the four concave portions 19 are located at the same height, and the included angle between the adjacent convex portions 18 and the adjacent concave portions 19 is 90 degrees. Thus, each fire extinguishing bomb can be matched and limited with four fire extinguishing bombs in front, back, left and right through the four convex parts 18 and the concave parts 19.

In a specific embodiment, as shown in fig. 4, the number of the convex portions 18 and the concave portions 19 of each fire extinguishing bomb is six, the six convex portions 18 and the six concave portions 19 are located at the same height, and the included angle between the adjacent convex portions 18 and the adjacent concave portions 19 is 60 degrees. Thus, each fire extinguishing bomb can be matched with and limited by six adjacent fire extinguishing bombs through six convex parts 18 and concave parts 19.

In a preferred embodiment, as shown in fig. 6 to 7, the annular cover 13 is provided with a plurality of weight-reduction ventilation through holes 15 along the circumferential direction thereof, the plurality of weight-reduction ventilation through holes 15 can be arranged on the annular cover 13 in a scattered manner, the plurality of weight-reduction ventilation through holes 15 not only can play a role of reducing weight and reducing material cost, but also can balance air pressure inside and outside the annular cover 13, so that the overhanging cover 11 of the lower fire extinguishing bomb body can be smoothly inserted into the annular cover 13 of the upper fire extinguishing bomb body, and it can be understood that the overhanging cover 11 of the lower fire extinguishing bomb body can also be smoothly pulled out of the annular cover 13 of the upper fire extinguishing bomb body.

More preferably, as shown in fig. 6 to 7, the overhanging cover 11 is provided with a plurality of weight-reducing blind holes 16 along the circumferential direction thereof, the positions of the weight-reducing blind holes 16 and a part of the number of the weight-reducing ventilation through holes 15 correspond to each other, when the overhanging cover 11 of the lower fire extinguishing bomb body is inserted into the annular sleeve cover 13 of the upper fire extinguishing bomb body, the positions of the weight-reducing blind holes 16 and the part of the number of the weight-reducing ventilation through holes 15 are overlapped, and at this time, a limiting member passing through the weight-reducing blind holes 16 and the weight-reducing ventilation through holes 15 can be inserted, so as to better limit the relative positions between the adjacent fire extinguishing bombs.

Further preferably, as shown in fig. 6 to 7, the height of the overhanging cover 11 is smaller than the height of the annular cover 13, when the overhanging cover 11 of the lower fire extinguishing bomb body is inserted into the annular cover 13 of the upper fire extinguishing bomb body, the annular cover 13 abuts against the top surface of the connecting cover 12, a receiving space 17 for receiving the ignition lead 14 is formed between the annular cover 13 and the overhanging cover 11, and a part of the number of weight-reduced ventilation through holes 15 are communicated with the receiving space 17. In this embodiment, the height of the overhanging cover 11 is smaller than that of the annular cover 13, so that when the overhanging cover 11 of the lower fire extinguishing bomb body is inserted into the annular cover 13 of the upper fire extinguishing bomb body, a receiving space 17 for receiving the ignition lead 14 is formed between the annular cover 13 and the overhanging cover 11, and the overhanging cover 11 is prevented from pressing the ignition lead 14, and at the same time, when the overhanging cover 11 of the lower fire extinguishing bomb body is inserted into the annular cover 13 of the upper fire extinguishing bomb body, at least part of the weight-reduction ventilation through holes 15 are communicated with the receiving space 17, so that the insertion and extraction processes of the overhanging cover 11 are smoother.

In a preferred embodiment, the shell is made of a high-temperature-resistant calcium carbonate synthetic material, and the shell is made of the high-temperature-resistant calcium carbonate synthetic material, so that the fire extinguishing bomb has good high-temperature resistance on one hand, and on the other hand, substances in the fire extinguishing bomb body can be protected. The outer shell is made of high-temperature-resistant calcium carbonate synthetic materials, specifically, the shell body 8, the top cover 9 and the bottom cover 10 are made of high-temperature-resistant calcium carbonate synthetic materials.

The high-temperature-resistant calcium carbonate synthetic material belongs to the existing material or can be designed by referring to the prior art, and for example, the invention patent application with the application number of 201110214511.X discloses an environment-friendly material of synthetic calcium carbonate, and the environment-friendly material of the synthetic calcium carbonate has good high-temperature resistance; another example is the invention patent application with application number "201410253390.3" which discloses a high temperature resistant modified calcium carbonate; for another example, the invention patent application with the application number of "201510752438. X" discloses an environment-friendly activated calcium carbonate which has good high-temperature resistance; also disclosed is a high temperature resistant composite calcium carbonate as disclosed in the invention patent application having application number "201610635705. X".

According to the needs, the fire extinguishing bomb can be designed into different specifications, for example, in one embodiment, the diameter of the upper bottom surface and the lower bottom surface of the fire extinguishing bomb body is 120mm, the height of the fire extinguishing bomb body is 80mm, the weight of a single fire extinguishing bomb is about 500 g, and the fire extinguishing bomb is suitable for transportation by a family car, for example, in another embodiment, the diameter of the upper bottom surface and the lower bottom surface of the fire extinguishing bomb body is 200mm, the height of the fire extinguishing bomb body is 80mm, and the weight of the single fire extinguishing bomb is about 1000 g, and the fire extinguishing bomb is suitable for transportation by a truck.

To sum up, the utility model provides a fire extinguishing bomb of multiple ignition lead 14, on the one hand, for the convenience main lead 2 that ignites, main lead 2's the other end falls into many ignition leads 14, many ignition leads 14 center on center tube 1 and be the annular array and distribute, ignition lead 14's quantity can be two, three … …, and is preferred, and ignition lead 14's quantity is four. Thus, the fire extinguishing bomb can be ignited by igniting any one ignition lead 14, and the occurrence of the condition of no explosion is reduced or avoided. On the other hand, the burning speeds of at least two ignition leads 14 in the plurality of ignition leads 14 are different, and the burning speeds of at least two ignition leads 14 in the plurality of ignition leads 14 are different, so that different ignition leads 14 can be ignited according to different requirements, and the fire extinguishing bomb can be detonated in different time.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire extinguishing bomb with multiple ignition leads comprises a cylindrical fire extinguishing bomb body, wherein the fire extinguishing bomb body comprises an inner layer center tube (1) and an outer layer shell, a main lead (2) and gunpowder (3) are arranged in the center tube (1), yellow mud (4), sawdust (5) and a bottom plug (6) are arranged in the center tube (1) in a layering mode from top to bottom, the gunpowder (3) is located between the sawdust (5) and the bottom plug (6), one end of the main lead (2) is connected with the gunpowder (3), the other end of the main lead (2) penetrates through the sawdust (5) and the yellow mud (4) and extends to the outer side of the fire extinguishing bomb body, fire extinguishing powder (7) is arranged between the shell and the center tube (1), and the shell comprises a cylindrical shell body (8), a top cover (9) and a bottom cover (10) which are used for sealing the top end and the bottom end of the shell body (8), the other end of main lead (2) passes top cap (9) and extends the outside of fire extinguishing bomb body, be formed with the boss on bottom (10), bottom butt end plug (6), its characterized in that of center tube (1) are inserted to the boss: the other end of the main lead wire (2) is divided into a plurality of ignition lead wires (14), the ignition lead wires (14) surround the central tube (1) and are distributed in an annular array, and the combustion speeds of at least two ignition lead wires (14) in the ignition lead wires (14) are different.

2. The fire extinguishing bomb according to claim 1, characterised in that: at least one ignition lead (14) of the plurality of ignition leads (14) is a fast ignition lead and at least one ignition lead (14) is a slow ignition lead.

3. The fire extinguishing bomb according to claim 1, characterised in that: the main lead (2) is a quick firing line.

4. The fire extinguishing bomb according to claim 1, characterised in that: the combustion speeds of any two ignition leads (14) in the plurality of ignition leads (14) are different.

5. The fire extinguishing bomb according to claim 4, characterised in that: the outer surfaces of any two ignition leads (14) of the plurality of ignition leads (14) are different in color.

6. A fire extinguishing bomb according to any one of claims 1 to 5, characterised in that: the shell is made of high-temperature-resistant calcium carbonate synthetic material.

7. A fire extinguishing bomb according to any one of claims 1 to 5, characterised in that: the fire extinguishing powder (7) is a superfine dry powder fire extinguishing agent.

8. A fire extinguishing bomb according to any one of claims 1 to 5, characterised in that: the top cover (9) is of a step structure, the top cover (9) comprises an outward extending cover (11) with a small diameter and a connecting cover (12) with a large diameter, the connecting cover (12) is located between the shell body (8) and the outward extending cover (11), the diameter of the connecting cover (12) is consistent with that of the shell body (8), an annular sleeve cover (13) is formed on the bottom end edge of the bottom cover (10) along the circumferential direction of the bottom cover, the annular sleeve cover (13) and the outward extending cover (11) are corresponding in position and matched in shape, and when two fire extinguishing bomb bodies are stacked up and down, the outward extending cover (11) of the lower fire extinguishing bomb body is inserted into the annular sleeve cover (13) of the upper fire extinguishing bomb body to limit respective movement.

9. The fire extinguishing bomb according to claim 8, characterised in that: the cross section of the overhanging cover (11) is elliptic or polygonal; the annular sleeve cover (13) is provided with a plurality of weight-reducing ventilation through holes (15) along the circumferential direction; the overhanging cover (11) is provided with a plurality of weight-reducing blind holes (16) along the circumferential direction, the weight-reducing blind holes (16) correspond to the weight-reducing ventilation through holes (15) of partial quantity, and when the overhanging cover (11) of the lower fire extinguishing bomb body is inserted into the annular sleeve cover (13) of the upper fire extinguishing bomb body, the weight-reducing blind holes (16) are overlapped with the weight-reducing ventilation through holes (15) of partial quantity; the height of the overhanging cover (11) is smaller than that of the annular sleeve cover (13), when the overhanging cover (11) of the lower fire extinguishing bomb body is inserted into the annular sleeve cover (13) of the upper fire extinguishing bomb body, an accommodating space (17) for accommodating an ignition lead (14) is formed between the annular sleeve cover (13) and the overhanging cover (11), and part of the weight-reducing ventilation through holes (15) are communicated with the accommodating space (17).

10. The fire extinguishing bomb according to claim 8, characterised in that: the outer wall of the shell body (8) is alternately provided with convex parts (18) and concave parts (19) which correspond in position and are matched in shape along the circumferential direction, and when the two fire extinguishing bomb bodies are horizontally placed, the convex part (18) of one fire extinguishing bomb body is inserted into the concave part (19) of the other fire extinguishing bomb body so as to limit the respective horizontal movement.