Armored vehicle for extinguishing oil fire on outer surface of vehicle body by using anti-water-dissolving film-forming foam liquid

文档序号:1919225 发布日期:2021-12-03 浏览:25次 中文

阅读说明:本技术 采用抗溶水成膜泡沫液扑灭车体外表面油类火的装甲车 (Armored vehicle for extinguishing oil fire on outer surface of vehicle body by using anti-water-dissolving film-forming foam liquid ) 是由 陈代年 卜长华 高利贵 钟培辉 郭子琪 于 2021-09-16 设计创作,主要内容包括:本发明公开一种采用抗溶水成膜泡沫液扑灭车体外表面油类火的装甲车,包括整车和灭火泡沫喷淋装置,所述整车包括车体、车顶和发动机机舱;所述灭火泡沫喷淋装置包括泡沫液罐、高压泡沫泵、电磁阀组和泡沫喷淋管道总成,所述泡沫喷淋管道总成分别延伸布设在车体的底盘、车轮、车顶和发动机机舱上;该装甲车针对抗溶水成膜泡沫液所具有的发泡好、易流淌、可覆盖体表以及抗复燃的特性,车体采用便于油类火和泡沫液流淌的外形设计,利用布设在整车上的泡沫喷淋管道,抗溶水成膜泡沫液喷淋在车辆外表后顺着车顶及侧面的倾斜面从上往下流淌直至覆盖住全车外表,在扑灭车体外表面油类火的同时在车体外表面形成抗复燃保护膜,提高自身灭火自救的能力。(The invention discloses an armored vehicle for extinguishing oil-type fire on the outer surface of a vehicle body by adopting anti-water-soluble film-forming foam liquid, which comprises a whole vehicle and a fire-extinguishing foam spraying device, wherein the whole vehicle comprises a vehicle body, a vehicle roof and an engine compartment; the fire extinguishing foam spraying device comprises a foam liquid tank, a high-pressure foam pump, an electromagnetic valve group and a foam spraying pipeline assembly, wherein the foam spraying pipeline assembly is respectively extended and distributed on a chassis, wheels, a roof and an engine room of the vehicle body; the armored vehicle adopts the appearance design convenient for oil-type fire and foam liquid to flow, utilizes the foam spraying pipeline arranged on the whole vehicle, and the anti-water-soluble film-forming foam liquid is sprayed on the outer surface of the vehicle and then flows along the inclined surfaces of the roof and the side surfaces of the vehicle from top to bottom until the outer surface of the whole vehicle is covered, so that the oil-type fire on the outer surface of the vehicle is extinguished, and meanwhile, the anti-afterburning protective film is formed on the outer surface of the vehicle, and the self fire extinguishing and self-rescuing capacity is improved.)

1. The utility model provides an adopt anti water-soluble film-forming foam liquid to put out armoured car of automobile body surface oil class fire which characterized in that: the fire extinguishing foam spraying device is arranged on the whole vehicle, and the whole vehicle comprises a vehicle body, a vehicle roof and an engine compartment, wherein the vehicle body is assembled on a chassis and comprises a passenger compartment and an equipment compartment; the fire extinguishing foam spraying device comprises a foam liquid tank fixedly mounted in an equipment cabin inside the vehicle body, a high-pressure foam pump connected with the foam liquid tank, an electromagnetic valve group connected with the output end of the high-pressure foam pump, and a foam spraying pipeline assembly connected with the electromagnetic valve group, wherein the foam spraying pipeline assembly extends and is arranged on a chassis, wheels, a vehicle roof and an engine cabin of the vehicle body respectively.

2. The armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using the anti-water-soluble film-forming foam liquid as claimed in claim 1, wherein: the fire-extinguishing foam spraying device comprises a vehicle body, a vehicle body side skirt portion, a roof, a cabin cover, a chassis, a bottom protective plate, a flow guide edge strip, a fire-extinguishing foam spraying controller and a fire-extinguishing foam spraying controller, wherein the two sides of the vehicle body are obliquely arranged, the vehicle body side skirt portion is arranged at the lower end of the vehicle body, the roof comprises a longitudinal oblique surface and a transverse oblique surface, the engine cabin is provided with a vehicle head portion part oblique surface which is oblique to a wheel cover from the cabin cover, the lower end of the vehicle body side skirt portion is bent towards the chassis and is provided with the bottom protective plate, the flow guide edge strip perpendicular to the ground is welded at the bent position of the vehicle body side skirt portion, and the fire-extinguishing foam spraying controller is installed in a passenger cabin inside the vehicle body and is respectively connected with a high-pressure foam pump and an electromagnetic valve group.

3. The armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using the anti-water-soluble film-forming foam liquid as claimed in claim 1, wherein: the foam spraying pipeline assembly comprises a left wheel foam spraying pipeline which is connected by the electromagnetic valve group and is distributed in a left wheel cover, a right wheel foam spraying pipeline which is connected by the electromagnetic valve group and is distributed in a right wheel cover, a vehicle front middle net foam spraying pipeline which is connected by the electromagnetic valve group, a vehicle front foam spraying pipeline which is connected by the electromagnetic valve group and is distributed at the front end of a vehicle roof, and a vehicle front foam spraying pipeline which is connected by the electromagnetic valve group and is connected by the electromagnetic valve group, the device comprises a roof foam spraying pipeline distributed in the middle of the roof, a left side wall foam spraying pipeline distributed on the left side of the roof and connected by the electromagnetic valve group, a right side wall foam spraying pipeline distributed on the right side of the roof and connected by the electromagnetic valve group, a rear side wall foam spraying pipeline distributed on the tail part of the roof and connected by the electromagnetic valve group, and a vehicle bottom foam spraying pipeline connected by the electromagnetic valve group.

4. The armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using the anti-water-soluble film-forming foam liquid as claimed in claim 3, wherein: the left wheel foam spray pipeline is also provided with a plurality of left wheel cover foam spray heads uniformly in the corresponding left wheel cover, and the left wheel cover foam spray heads extend to be provided with an oil tank foam spray head at a position close to the oil tank.

5. The armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using the anti-water-soluble film-forming foam liquid as claimed in claim 3, wherein: and the right wheel foam spraying pipeline is also provided with a plurality of right wheel housing foam nozzles uniformly arranged in the corresponding right wheel housing.

6. The armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using the anti-water-soluble film-forming foam liquid as claimed in claim 3, wherein: the foam spraying pipeline of the front middle net is provided with a middle net foam nozzle at the position corresponding to the outward middle net and the inward middle net.

7. The armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using the anti-water-soluble film-forming foam liquid as claimed in claim 3, wherein: and a front foam nozzle of the vehicle is arranged on the front foam spraying pipeline of the vehicle towards the engine cabin.

8. The armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using the anti-water-soluble film-forming foam liquid as claimed in claim 3, wherein: the top foam spraying pipeline is provided with 360-degree rotatable nozzles, a plurality of left side surrounding foam nozzles are distributed on the left side surrounding foam spraying pipeline, a plurality of right side surrounding foam nozzles are distributed on the right side surrounding foam spraying pipeline, and rear side surrounding foam nozzles are distributed on the rear side surrounding foam spraying pipeline.

9. The armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using the anti-water-soluble film-forming foam liquid as claimed in claim 3, wherein: the vehicle bottom foam spray pipeline is provided with a vehicle bottom foam spray head on the position corresponding to the front end of the chassis and the rear end of the chassis.

Technical Field

The invention particularly relates to an armored vehicle for extinguishing oil type fire on the outer surface of a vehicle body by adopting anti-water-soluble film-forming foam liquid.

Background

Because the existing armored vehicles in mass production in China are not provided with devices capable of extinguishing A-type and B-type oil fires on the outer surface of the vehicle body, the armored vehicles can only extinguish after gasoline, combustible components (such as tires) of the vehicles, equipment arranged outside the vehicles and other objects are burnt out. In addition to the burning of the vehicle itself and the external devices, the life safety of the people in the vehicle can be endangered by the temperature rise in the vehicle and the toxic smoke generated by the oil fire caused by the continuous fire, and the serious consequences of the car damage and the death can be caused finally.

The armored vehicles produced in mass production in China can only provide an automatic or manual starting fire extinguishing device for the internal fire of an engine compartment in response to the fire, and the self fire extinguishing and self rescue can not be carried out when the external surface of the vehicle body catches fire.

Disclosure of Invention

In view of the above, the present invention aims to provide an armored vehicle which can improve self-extinguishing and self-rescue capabilities by spraying anti-water-dissolution film-forming foam liquid on the top and the inclined surface of the side surface to form a re-ignition-resistant and fireproof protective film.

In order to solve the technical problems, the technical scheme of the invention is as follows:

an armored vehicle for extinguishing oil-type fire on the outer surface of a vehicle body by adopting anti-water-soluble film-forming foam liquid comprises a finished vehicle and a fire-extinguishing foam spraying device arranged on the finished vehicle, wherein the finished vehicle comprises the vehicle body which is assembled on a chassis and comprises a passenger compartment and an equipment compartment, a vehicle roof covering the vehicle body and an engine compartment; the fire extinguishing foam spraying device comprises a foam liquid tank fixedly mounted in an equipment cabin inside the vehicle body, a high-pressure foam pump connected with the foam liquid tank, an electromagnetic valve group connected with the output end of the high-pressure foam pump, and a foam spraying pipeline assembly connected with the electromagnetic valve group, wherein the foam spraying pipeline assembly is respectively extended and arranged on a chassis, wheels, a vehicle roof and an engine cabin of the vehicle body.

Furthermore, two sides of the vehicle body are obliquely arranged, a vehicle body side skirt portion is arranged at the lower end of the vehicle body, the vehicle roof comprises a longitudinal oblique surface and a transverse oblique surface, a vehicle head part inclined surface which is inclined towards a wheel cover from a cabin cover is arranged on the engine cabin, a bottom protection plate is arranged at the lower end of the vehicle body side skirt portion in a bending mode towards the chassis, a diversion edge strip which is perpendicular to the ground is welded at the bending position of the vehicle body side skirt portion, and the shape and the structure of the vehicle body are beneficial to oil type fire and foam liquid to flow to the ground from the vehicle roof along the side face of the vehicle body. The fire-extinguishing foam spraying device also comprises a fire-extinguishing foam spraying controller which is arranged in a passenger cabin inside the vehicle body and is respectively connected with the high-pressure foam pump and the battery valve group.

Furthermore, the foam spraying pipeline assembly comprises a left wheel foam spraying pipeline which is connected by the electromagnetic valve group and is distributed in a left wheel cover, a right wheel foam spraying pipeline which is connected by the electromagnetic valve group and is distributed in a right wheel cover, a vehicle front middle net foam spraying pipeline which is connected by the electromagnetic valve group, a vehicle front foam spraying pipeline which is connected by the electromagnetic valve group and is distributed at the front end of the vehicle roof, and a vehicle front foam spraying pipeline which is connected by the electromagnetic valve group and is connected by the electromagnetic valve group, the device comprises a roof foam spraying pipeline distributed in the middle of the roof, a left side wall foam spraying pipeline distributed on the left side of the roof and connected out by the electromagnetic valve group, a right side wall foam spraying pipeline distributed on the right side of the roof and connected out by the electromagnetic valve group, a rear side wall foam spraying pipeline distributed on the tail part of the roof and connected out by the electromagnetic valve group, and a vehicle bottom foam spraying pipeline connected out by the electromagnetic valve group.

Furthermore, a plurality of left side wheel house foam nozzles are uniformly arranged in the corresponding left side wheel house of the left side wheel foam spraying pipeline, and an oil tank foam nozzle is arranged at the position close to the oil tank in an extending mode.

Furthermore, a plurality of right side wheel housing foam nozzles are uniformly arranged in the corresponding right side wheel housing through the right side wheel foam spraying pipeline.

Furthermore, the foam spraying pipeline of the front middle net is provided with a middle net foam nozzle at a position corresponding to the outward middle net and the inward middle net.

Furthermore, a foam nozzle at the front part of the vehicle is arranged on the foam spraying pipeline at the front part of the vehicle towards the engine cabin.

Furthermore, a 360-degree rotating nozzle is installed on the top foam spraying pipeline, a plurality of left side surrounding foam nozzles are distributed on the left side surrounding foam spraying pipeline, a plurality of right side surrounding foam nozzles are distributed on the right side surrounding foam spraying pipeline, and a rear side surrounding foam nozzle is distributed on the rear side surrounding foam spraying pipeline.

Furthermore, the vehicle bottom foam spray pipeline is provided with a vehicle bottom foam spray head on the position corresponding to the front end of the chassis and the rear end of the chassis.

The technical effects of the invention are mainly reflected in the following aspects: the armored vehicle has the advantages that the anti-water-soluble film-forming foam liquid has the characteristics of good foaming, easiness in flowing, capability of covering the body surface and resistance to afterburning, the vehicle body adopts the appearance design and the structure which are convenient for oil type fire and the flowing of the foam liquid, the anti-water-soluble film-forming foam liquid flows from top to bottom along the inclined surfaces of the vehicle top and the side surfaces after being sprayed on the outer surface of the vehicle until the outer surface of the whole vehicle is covered by utilizing the foam spraying pipeline assemblies which are distributed and installed on the vehicle body, the roof and the engine cabin, the anti-water-soluble film-forming foam liquid forms a afterburning-resistant protective film on the outer surface of the vehicle body while the oil type fire on the outer surface of the vehicle body is extinguished, and the self-extinguishing and self-rescuing capacity is improved.

Drawings

FIG. 1 is a structural view of an armored vehicle in which an oil-based fire on the outer surface of the vehicle body is extinguished by a water-soluble-resistant film-forming foam liquid according to the present invention;

FIG. 2 is an internal structural view of the rear portion of the vehicle body of FIG. 1;

FIG. 3 is a side view of the entire truck of FIG. 1;

FIG. 4 is a front view of the entire truck of FIG. 1;

FIG. 5 is a block diagram of the body side skirt of FIG. 3;

FIG. 6 is a schematic view of the fire fighting foam spray system of FIG. 1;

fig. 7 is a schematic distribution diagram of the foam spray pipeline assembly in fig. 6 on the whole vehicle.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

Examples

An armored vehicle for extinguishing oil-type fire on the outer surface of the vehicle body by using anti-water-soluble film-forming foam liquid, as shown in figures 1-4, comprises a whole vehicle 1 and a fire-extinguishing foam spraying device 2 arranged on the whole vehicle 1, wherein the whole vehicle 1 comprises a vehicle body 11 which is assembled on a chassis and comprises a passenger compartment and an equipment compartment, a vehicle roof 12 covering the vehicle body, and an engine compartment 13; the vehicle body 11 is obliquely arranged on two sides, a vehicle body side enclosing skirt part 111 is arranged at the lower end of the vehicle body, the roof 12 comprises a longitudinal oblique surface 121 and a transverse oblique surface 122, and the engine compartment 13 is provided with a vehicle head part inclined surface 131 which inclines from a compartment cover to a wheel cover. The fire extinguishing foam spraying device 2 comprises a foam liquid tank 21 fixedly mounted in an equipment cabin inside the vehicle body, a high-pressure foam pump 22 connected with the foam liquid tank, an electromagnetic valve group 23 connected with the output end of the high-pressure foam pump, and a foam spraying pipeline assembly 24 connected with the electromagnetic valve group, wherein the foam spraying pipeline assembly 24 is respectively extended and arranged on a chassis, wheels, a vehicle roof 12 and an engine cabin 13 of the vehicle body 11.

As shown in fig. 5, the bottom guard plate 1111 is arranged at the lower end of the side body skirt 111 and is bent towards the chassis, and the flow guide edge strip 1112 perpendicular to the ground is welded at the bent part of the side body skirt 111, so that after the gasoline bottle or gasoline bomb hits the vehicle body 11, the flow guide edge strip 1112 can prevent the gasoline from flowing to the chassis, and meanwhile, the bottom guard plate 1111 can prevent the ignition point of the gasoline on the ground from igniting the chassis, thereby further improving the fire safety of the whole vehicle 1.

As shown in fig. 6-7 in conjunction with fig. 1, the fire fighting foam spray device 2 further includes a fire fighting foam spray controller 25 installed in the passenger compartment inside the vehicle body 11 and connected to the high pressure foam pump 22 and the battery pack 23, respectively. The foam spray pipeline assembly 24 comprises a left wheel foam spray pipeline 241 which is connected by the electromagnetic valve group 23 and is distributed in a left wheel cover, a right wheel foam spray pipeline 242 which is connected by the electromagnetic valve group 23 and is distributed in a right wheel cover, a vehicle front middle net foam spray pipeline 243 which is connected by the electromagnetic valve group 23, a vehicle front foam spray pipeline 244 which is connected by the electromagnetic valve group 23 and is distributed at the front end of the vehicle roof, a vehicle roof foam spray pipeline 245 which is connected by the electromagnetic valve group 23 and is distributed in the middle of the vehicle roof, a left side wall foam spray pipeline 246 which is connected by the electromagnetic valve group 23 and is distributed at the left side of the vehicle roof, a right side wall foam spray pipeline 247 which is connected by the electromagnetic valve group 23 and is distributed at the right side of the vehicle roof, and a rear side wall foam spray pipeline 248 which is connected by the electromagnetic valve group 23 and is distributed at the tail part of the vehicle roof, and a vehicle bottom foam spraying pipeline 249 connected from the electromagnetic valve group 23.

Left side wheel foam spray pipe 241 still evenly installs a plurality of left side wheel casing foam shower nozzle 2411 in the left side wheel casing that corresponds, can spray the left side wheel, avoids catching fire and arouses the tire burst, extends at the position that is close to the oil tank simultaneously and installs oil tank foam shower nozzle 2412, can adopt the foam to spray the oil tank simultaneously and cool down, avoids the automobile body to catch fire or the in-process that the right side wheel tire catches fire to arouse the oil tank because of high temperature and catches fire.

The right wheel foam spraying pipeline 242 is also provided with a plurality of right wheel housing foam spray heads 2421 which are uniformly arranged in the corresponding right wheel housing, so that right wheels can be sprayed, and tire burst caused by fire can be avoided.

The net foam shower pipe 243 installs well net foam nozzle 2431 in corresponding well net outwards and well net inwards position, can in time put out well net position on fire, inhales flame and flue gas when avoiding well net to admit air, leads to the fact the influence to taking a breath in the automobile body 11.

The front foam spray pipe 244 is provided with a front foam spray nozzle 2441 at a position facing the engine compartment, specifically, foam spray can be performed when the engine compartment cover is on fire, and the sprayed anti-soluble water film-forming foam liquid forms a film layer for blocking gasoline adhesion on the engine compartment cover by flow casting, so that secondary ignition and combustion of the engine compartment cover can be effectively prevented.

The top foam spray pipe 245 is provided with a 360-degree rotary nozzle 2451, the left side wall foam spray pipe 246 is provided with a plurality of left side wall foam nozzles 2461, the right side wall foam spray pipe 247 is provided with a plurality of right side wall foam nozzles 2471, the back side wall foam spray pipe 248 is provided with a right side wall foam nozzle 2481, specifically, the multi-directional foam spray can be carried out when the side wall of the vehicle body 12 is on fire, and the sprayed anti-soluble water film-forming foam liquid forms a layer of anti-reburning film layer for blocking the attachment of gasoline by curtain coating on the side wall of the vehicle body 12, so that the secondary ignition combustion of the vehicle body can be effectively prevented

Vehicle bottom foam spray piping 249 installs vehicle bottom shower nozzle 2491 on corresponding chassis front end and chassis rear end position, and vehicle bottom shower nozzle 2491 can carry out the foam to the position that the chassis can't cover through bottom backplate 1111 and spray, prevents effectively that the chassis from destroying because of the burning.

In this embodiment, the foam spraying pipe assembly 24 is designed by connecting a front wheel foam spraying pipe 241, a rear wheel foam spraying pipe 242, a front middle net foam spraying pipe 243, a front foam spraying pipe 244, a top foam spraying pipe 245, a left side surrounding foam spraying pipe 246, a right side surrounding foam spraying pipe 247, a rear side surrounding foam spraying pipe 248 and a vehicle bottom foam spraying pipe 249 in parallel to the high-pressure foam pump 22, each foam spraying pipe is responsible for different parts of the vehicle, and for different parts of the vehicle, the side surrounding and the rear surrounding of the vehicle roof, the front part, the front middle net and the vehicle lamp, the front and rear wheels, the fuel tank and the chassis part which can not be covered by the bottom guard plate 1111, the electromagnetic valve group 23 can be controlled by the fire-extinguishing foam spraying controller 25 to selectively open any one pipe, multiple pipes or all foam spraying pipes, and different foam fire-extinguishing nozzles are used for different parts, for example, the front wheel housing foam nozzle 2411, the oil tank foam nozzle 2412, the rear wheel housing foam nozzle 2421, the middle net foam nozzle 2431, the front foam nozzle 2441, the 360-degree rotary nozzle 2451, the left side surrounding foam nozzle 2461, the right side surrounding foam nozzle 2471, the right side surrounding foam nozzle 2481 and the vehicle bottom nozzle 2491 are correspondingly arranged, so that the fire extinguishing vehicle has the characteristics of strong pertinence and high fire extinguishing efficiency.

In this example, 3% anti-water-soluble film-forming foam concentrate (AFFF/AR 3%) was mixed with water at a 3% ratio to prepare a foam concentrate. The water-soluble film-forming foam liquid can extinguish fires of hydrocarbons (such as gasoline) and polar solvents (such as alcohol). The anti-solubility water-filming foam liquid has the flowing property, the adhesion property and the anti-recrudescence property, can flow downwards on the inclined plane of the armored vehicle body, and simultaneously forms a foam protective film at the flowing part, so that the armored vehicle body can be completely covered by foam liquid foam, and the reburning of liquid combustible materials such as gasoline, alcohol and the like can be effectively inhibited, and the concrete characteristics are as follows:

1. the AFFF/AR anti-solubility aqueous film-forming foam liquid is used as the foam liquid, so that the fire of common hydrocarbon and polar solution such as gasoline, alcohol and the like can be efficiently extinguished.

2. Compared with foam liquid such as dry powder, gas, fine water mist and the like, the water film-forming foam liquid is adopted as the foam liquid, the jet flow of the foam liquid is less influenced by wind force when the foam liquid is sprayed, and the spraying distance is longer, so that the foam liquid sprayed by the foam can be more comprehensively sprayed to all parts of the outer surface of the vehicle body.

3. The anti-water-soluble film-forming foam liquid is sprayed and trickled to cover by foam, a layer of fire-proof protective film can be formed on the outer surface of the vehicle and can be kept for more than tens of minutes, and the re-burning of liquids such as gasoline, alcohol and the like can be effectively inhibited, so that the long-acting protection effect is achieved.

The technical effects of the invention are mainly reflected in the following aspects: the armored vehicle has the advantages that the anti-water-soluble film-forming foam liquid has the characteristics of good foaming, easiness in flowing, capability of covering the body surface and resistance to afterburning, the vehicle body adopts the appearance design and the structure which are convenient for oil type fire and the flowing of the foam liquid, the anti-water-soluble film-forming foam liquid flows from top to bottom along the inclined surfaces of the vehicle top and the side surfaces after being sprayed on the outer surface of the vehicle until the outer surface of the whole vehicle is covered by utilizing the foam spraying pipeline assemblies which are distributed and installed on the vehicle body, the roof and the engine cabin, the anti-water-soluble film-forming foam liquid forms a afterburning-resistant protective film on the outer surface of the vehicle body while the oil type fire on the outer surface of the vehicle body is extinguished, and the self-extinguishing and self-rescuing capacity is improved.

Of course, the above is only a typical example of the present invention, and besides, the present invention may have other embodiments, and all technical solutions formed by using equivalent substitutions or equivalent transformations fall within the scope of the claimed invention.

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