CN116688387A

CN116688387A - Novel portable emergency rescue device

Info

Publication number: CN116688387A
Application number: CN202310366595.1A
Authority: CN
Inventors: 刘江; 何文斌; 初众; 仇建文; 崔昭霞; 张艳锋; 李华强
Original assignee: Inner Mongolia University of Technology
Current assignee: Inner Mongolia University of Technology
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-09-05

Abstract

The invention discloses a novel portable emergency rescue device, which comprises a gas storage tank, a pressure reducing and speed regulating valve and a power conversion mechanism; the power conversion mechanism comprises a shell, connecting end covers at two ends of the shell and a closed end cover; the stator is fixedly sleeved in the shell, and the turbine rotor is rotatably arranged; the stator comprises a cylindrical stator core and a coil wound on the cylindrical stator core; the turbine rotor is fixedly sleeved on the rotating shaft, and comprises a rotating ring, crescent N-pole magnet scroll blades and S-pole magnet scroll blades which are distributed on the outer circumference of the rotating ring at intervals, and a gas flow passage is formed between the scroll blades; the inner side of the connecting end cover is sequentially provided with a valve plate and a nozzle seat, the valve plate and the nozzle seat distribute air flow and boost and blow the air flow to the air flow passage to drive the turbine rotor to rotate to form a rotating magnetic field, and the coil generates induced current. The emergency rescue device can realize power supply, air supply and power supply 'trinity' fire-fighting emergency rescue, can realize three functions simultaneously, can be used independently, and has great convenience.

Description

Novel portable emergency rescue device

Technical Field

The invention relates to the technical field of public safety fire rescue equipment, in particular to a novel portable emergency rescue device.

Background

When fire safety accidents occur, especially major natural disasters, traffic accidents and production accidents occur, complex reality situations need to be faced. In cities, the power facilities may be interrupted by accidents, and the damage degree of the power infrastructure caused by grid disconnection due to external forces (such as ice and snow disasters and earthquakes) is more serious. If emergency measures are not adopted to supply power, the urban power grid is only waited for to recover, and serious consequences can be brought. When rescue is carried out in the field, the communication signal is often interrupted by a complex natural environment, and personnel cannot be in long-time contact with the outside. The common generator has low universality and inconvenient carrying, and is quite unfavorable for rescue work deployment. In particular, in order to reduce life and property loss of people in explosion-proof places, in wild places and other special places, rescue workers need to search for 24 hours without interruption, a portable emergency device is needed to provide power for the rescue workers so as to ensure normal operation of necessary equipment such as illumination, rescue communication and the like in severe environments, and the device is also needed to ensure self-rescue capability of people in danger so as to gain rescue time for the rescue workers. The high-efficiency and convenient emergency device is certainly the key for guaranteeing life safety and smoothly carrying out rescue work, so that the device actively explores the fire-fighting and rescue equipment in special places and has important significance for improving the fire-fighting and rescue capability.

Disclosure of Invention

The invention aims to: the invention aims to provide a novel portable emergency rescue device which uses compressed gas as an energy storage medium to realize the 'three-in-one' fire emergency rescue of power supply, air supply and power supply.

The technical scheme is as follows: the invention relates to a novel portable emergency rescue device, which comprises an air storage tank, a pressure-reducing speed-regulating valve connected to an outlet of the air storage tank, and a power conversion mechanism fixed at the outlet end of the pressure-reducing speed-regulating valve; the power conversion mechanism comprises a shell with two through ends, a connecting end cover and a closed end cover, wherein the connecting end cover and the closed end cover are encapsulated at the two ends of the shell; the stator is fixedly sleeved in the shell, and the turbine rotor is rotatably arranged in the stator; the stator comprises a cylindrical stator core and a coil wound outside the stator core; the turbine rotor is fixedly sleeved on the rotating shaft, the turbine rotor comprises a rotating ring and crescent N-pole magnet vortex blades and S-pole magnet vortex blades which are distributed on the outer circumference of the rotating ring at intervals, and a gas flow passage is formed between the N-pole magnet vortex blades and the S-pole magnet vortex blades; the inner side of the connecting end cover is sequentially provided with a valve plate and a nozzle seat, the valve plate distributes air flow entering the connecting end cover to the nozzle seat, the nozzle seat pressurizes and blows the air flow to the air flow channel to drive the turbine rotor to rotate so as to form a rotating magnetic field, and the coil generates induced current.

Preferably, the end surfaces at two sides of the nozzle seat are provided with nozzle holes which are inclined inwards with the rotation axis and tangential with the circumference, and the number of the nozzle holes is not less than 1; the outlet end of the nozzle hole and the gas flow passage are positioned on the same circumferential surface.

Preferably, the circumference of the valve plate is provided with a plurality of airflow through holes; the valve plate rotates to enable the air flow through holes and the nozzle holes to correspondingly realize a plurality of nozzle working modes.

Preferably, the total number of magnetic poles of the N-pole magnet eddy leaf and the S-pole magnet eddy leaf is not less than 4.

Preferably, the coils are wound on the poles of the stator core, and the number of poles of the stator core is not less than 6.

Preferably, the coil end adopts a star-shaped or triangle-shaped connection mode, the coil input end is electrically connected with an external winding wire, and the external winding wire is electrically connected with the battery pack through the ballast.

Preferably, the center of the closed end cover is provided with a rotating shaft hole, the rotating shaft is rotatably arranged in the rotating shaft hole, and the outer end of the rotating shaft extends out of the rotating shaft hole; the shaft end of the rotating shaft is provided with a connecting counter bore or a square connecting block.

Preferably, the outer circumference of the closed end cover is provided with a plurality of exhaust holes which are correspondingly provided with at least 2 exhaust holes with the outlet end of the gas flow passage, the exhaust holes are provided with internal threads, and the exhaust holes are matched with the internal threads to form a sealing plug.

Preferably, the exhaust hole is in threaded connection with one end of the connecting rubber tube, and the other end of the connecting rubber tube is connected with the breathing mask.

Preferably, the axle center of the nozzle seat and the closed end cover is provided with a mounting position hole, and a support bearing for mounting the rotating shaft is arranged in the mounting position hole.

The beneficial effects are that: compared with the prior art, the invention has the following outstanding advantages:

1. the emergency rescue device adopts the compressed gas as an energy storage medium, and the compressed gas has the advantages of easy realization, high rotating speed, no heat during working, no pollution to the environment, suitability for special places such as explosion prevention, dust prevention and the like;

2. the stator and the turbine rotor are matched to realize that mechanical energy is converted into electric energy to be output; the turbine rotor can effectively reduce the size of the power conversion mechanism, the compressed internal energy is converted into the mechanical energy of the turbine rotor, and then the mechanical energy is converted into electric energy, mechanical energy or fire-fighting rescue gas required by fire-fighting rescue, so that the self-rescue capability of people in distress is improved, and more alternatives and possibilities are added to fire-fighting rescue.

Drawings

FIG. 1 is a schematic diagram of a portable emergency rescue device according to the present invention;

FIG. 2 is a schematic view of the internal structure of the power conversion mechanism of FIG. 1;

FIG. 3 is a schematic view of the port plate of FIG. 2;

FIG. 4 is a schematic view of the nozzle holder and spindle assembly of FIG. 2;

FIG. 5 is a radial cross-sectional view of the turbine rotor of FIG. 2;

FIG. 6 is an axial cross-sectional view of the outer end of the shaft of FIG. 2;

FIG. 7 is a circuit diagram of an external power supply system according to the present invention;

FIG. 8 is a schematic diagram of an external air supply system according to the present invention.

Reference numerals:

1. a gas storage tank; 2. a pressure reducing and speed regulating valve; 3. a power conversion mechanism; 4. a housing; 5. connecting an end cover; 6. closing the end cover; 61. an exhaust hole; 62. a rotation shaft hole; 7. a stator; 71. a stator core; 72. a coil; 8. a port plate; 81. a gas flow through hole; 9. a nozzle holder; 91. a nozzle hole; 10. a turbine rotor; 101. an N-pole magnet vortex blade; 102. s-pole magnet vortex blades; 103. a gas flow passage; 104. a swivel; 11. a rotating shaft; 111. connecting the counter bores; 12. a support bearing; 13. sealing and blocking; 14. a power connecting rod; 15. a ballast; 16. a battery pack; 17. a load device; 18. the winding is externally connected; 19. a respiratory mask; 20. and connecting the rubber tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 8 of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.

As shown in fig. 1, the novel portable emergency rescue device comprises an air storage tank 1 and a pressure reducing and speed regulating valve 2 connected to an outlet of the air storage tank; the air storage tank 1 is used for storing compressed air, and according to the requirements of the use environment, air sources such as compressed nitrogen, compressed air or compressed oxygen can be adopted, and double shoulder straps can be fixed on the air storage tank 1, so that the air storage tank is convenient for operators to carry. The pressure reducing and speed regulating valve 2 is integrated with a pressure reducing valve and a throttle speed regulating valve for setting gas pressure and regulating gas flow rate, the pressure reducing and speed regulating valve is provided with a pressure gauge for displaying the pressure of the gas storage tank and the pressure of the depressurized gas storage tank, and the outlet end of the pressure reducing and speed regulating valve 2 can be fixedly connected with the power conversion mechanism 3 through a threaded pipe.

As shown in fig. 2-5, the power conversion mechanism 3 comprises a shell 4 with two through ends, wherein the inner sides of the two ends of the shell 4 are provided with thread steps, the outer circumference of the connecting end cover 5 is provided with external threads, the axle center of the connecting end cover 5 is provided with internal threads, the connecting end cover 5 is fixedly connected with the pressure reducing and speed regulating valve 2 through the internal threads, and the connecting end cover 5 is rotationally connected into the thread steps of the shell 4 through threads; the outer end of the shell 4 is in threaded connection with a closed end cover 6, a shaft shoulder is arranged on the inner side of the closed end cover 6, an external thread is arranged on the outer circumference of the shaft shoulder, and the shaft shoulder of the closed end cover 6 is in threaded connection with the inner side of the shell; the axle center of the closed end cover 6 is provided with a rotating axle hole 62, and the inner side of the rotating axle hole 62 is provided with a mounting position hole for mounting the support bearing 12. The outer circumference of the closed end cover 6 is provided with a plurality of exhaust holes 61, the exhaust holes 61 are provided with internal threads, sealing plugs 13 are matched with the internal threads, and the opening quantity of the exhaust holes of the closed end cover 6 can be controlled through the sealing plugs 13.

As shown in fig. 2 and 5, the stator 7 is fixedly sleeved in the housing 4, the stator 7 comprises a cylindrical stator core 71 and coils 72, the stator core 71 is made of magnetic steel with good magnetic conductivity, the coils 72 are wound on magnetic poles of the stator core 71, and the number of the magnetic poles of the stator core 71 is not less than 6. The turbine rotor 10 is rotatably arranged on the inner side of the stator core 71, and the turbine rotor 10 is fixedly sleeved on the rotating shaft 11; the turbine rotor 10 comprises a rotating ring 104 and crescent N-pole magnet scroll blades 101 and S-pole magnet scroll blades 102 which are distributed at intervals on the outer circumference of the rotating ring, a gas flow passage 103 is formed between the N-pole magnet scroll blades 101 and the S-pole magnet scroll blades 102, and the total number of magnetic poles of the N-pole magnet scroll blades 101 and the S-pole magnet scroll blades 102 is not less than 4. Specifically, the number of stator core 71 and magnetic eddy-leaf magnetic poles is set according to the requirement, and the rotating magnetic field is formed to cut the magnetic induction line during the rotation of turbine rotor 10, and the coil 72 correspondingly generates the induction current. The tail end of the coil 72 adopts a star-shaped or triangle-shaped connection mode, the input end of the coil 72 is electrically connected with the winding external connection wire 18, the winding external connection wire 18 is electrically connected with the battery pack 16 through the ballast 15, the battery pack 16 can provide direct current for the load device 17, the load device 17 can be electric lamp equipment, communication equipment, mechanical equipment or medical equipment, and the type of the specific load device 17 is selected according to rescue requirements. The speed of the gas flowing into the power conversion mechanism 3 is regulated through the pressure reducing and speed regulating valve 2, and the rotating speed of the turbine rotor 10 is regulated, so that different voltage and current outputs are realized.

As shown in fig. 2-4, the inner side of the connecting end cover 5 is sequentially provided with a valve plate 8 and a nozzle seat 9, the outer diameters of the valve plate 8 and the nozzle seat 9 are consistent with the inner diameter of the stator core 71, and the valve plate 8 and the nozzle seat 9 are correspondingly clamped in the stator core; the axis of the nozzle seat 9 is provided with a mounting position hole, and a support bearing 12 for mounting the rotating shaft is arranged in the mounting position hole. The port plate 8 is circumferentially provided with a plurality of air flow holes 81. The end surfaces of the two sides of the nozzle seat 9 are provided with nozzle holes 91 which are inclined inwards from the rotation axis and tangential to the circumferential direction, and the number of the nozzle holes 91 is not less than 1; the outlet end of the nozzle hole 91 is located on the same circumferential surface as the gas flow path 103. The compressed gas entering the power conversion mechanism 3 enters the nozzle hole 91 of the nozzle seat through the airflow through hole 81 of the valve plate to be pressurized and accelerated, and then the high-pressure airflow is blown to the gas flow passage 103 to drive the turbine rotor 10 to rotate, so that the turbine rotor is driven to rotate at a high speed. In a specific embodiment, three air flow holes 81 are formed in the circumference of the valve plate 8, wherein two air flow holes 81 are positioned at two radial ends of the valve plate 8, and the other air flow hole is perpendicular to the connecting line of the other two air flow holes; the number of nozzle holes 91 is two disposed along both ends of the nozzle holder diameter. When the valve plate 8 is rotated so that one of the air flow holes 81 is communicated with one of the nozzle holes 91 of the nozzle seat 9, a single-channel nozzle working mode can be realized; when the port plate 8 is rotated such that two of the gas flow holes 81 communicate with 2 nozzle holes 91 of the nozzle holder, a two-channel nozzle mode of operation is achieved.

As shown in fig. 2 and 6, the rotating shaft 11 is rotatably installed in the rotating shaft hole 62, and the outer end of the rotating shaft 11 protrudes out of the rotating shaft hole; the shaft end of the rotating shaft 11 is provided with a connecting counter bore 111 or a square connecting block. If the shaft end of the rotating shaft is provided with a connecting counter bore 111, the connecting counter bore 111 can be an inner hexagonal hole, and a power connecting rod 14 in a hexagonal shape is correspondingly connected in the connecting counter bore; if the shaft end of the rotating shaft is set to be a square connecting block, a socket wrench is arranged in cooperation with the square connecting block; torque output is achieved through the power connecting rod 14 or the socket spanner, so that torque output of rescue machinery is met. It should be noted that the shaft end shape of the rotating shaft 11 can be set according to the requirement, for example, the rotating shaft is arranged in a plum blossom shape, and is connected with a power shaft of other mechanical equipment through a coupler; the power output torque or the rotating speed is realized by adjusting the gas flow rate of the pressure reducing and speed regulating valve and then adjusting the rotating speed of the turbine rotor.

As shown in fig. 2 and 8, the exhaust hole 61 is screw-coupled to one end of the connection hose 20, and the other end of the connection hose 20 is coupled to the breathing mask 19. Specifically, the number of the exhaust holes 61 determines the number of the rescue workers; the temporarily unused exhaust holes are plugged by the sealing plugs 13, so that the air consumption is reduced, and the emergency air supply is maximally provided for people in danger. It should be noted that the gas tank 1 used for rescue of a person should store oxygen.

The invention relates to a working principle or working principle of a portable emergency rescue device, which comprises the following steps:

according to the emergency rescue device, compressed gas is used as an energy storage medium, and the pressure reducing and regulating valve 2 can regulate the gas discharge flow rate and pressure in the gas storage tank 1; after the high-pressure gas enters the power conversion mechanism 3, the high-pressure gas respectively flows through the valve plate 8 and the nozzle seat 9 to carry out air flow pressurization, and then is blown into the air flow passage 103 of the turbine rotor, so that the turbine rotor is driven to rotate at a high speed; the plurality of N pole or S pole magnet vortex sheets which are arranged on the outer circumference of the turbine rotor 10 and are crescent-shaped are matched with the stator 7 to convert mechanical energy into electric energy in the rotation process of the turbine rotor, so that emergency rescue power supply is realized. In the rotating process of the turbine rotor, a connecting piece can be connected with an external mechanical power mechanism, so that the output of power moment is realized. When the compressed gas adopts an oxygen source, the compressed gas can be used for emergency rescue of injured people; when the compressed gas adopts an air source, the compressed gas can be used as high-pressure gas for cutting gas or blowing cleaning gas for emergency rescue. The power conversion mechanism can realize power supply, air supply and power supply 'trinity' fire-fighting emergency rescue, and three functions can be realized simultaneously or used independently, thereby having great convenience.

The foregoing is a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention and are intended to be comprehended within the scope of the present invention.

Claims

1. Novel portable emergency rescue device, emergency rescue device includes gas holder (1) and connects at gas holder export decompression speed regulating valve (2), its characterized in that: the device also comprises a power conversion mechanism (3) fixed at the outlet end of the pressure reducing and speed regulating valve (2); the power conversion mechanism (3) comprises a shell (4) with two through ends, a connecting end cover (5) and a sealing end cover (6) which are packaged at the two ends of the shell; the stator (7) is fixedly sleeved in the shell (4), and the turbine rotor (10) is rotatably arranged in the stator; the stator (7) comprises a cylindrical stator core (71) and a coil (72) wound outside the stator core; the turbine rotor (10) is fixedly sleeved on the rotating shaft (11), the turbine rotor (10) comprises a rotating ring (104) and crescent N-pole magnet vortex blades (101) and S-pole magnet vortex blades (102) which are distributed on the outer circumference of the rotating ring at intervals, and a gas flow passage (103) is formed between the N-pole magnet vortex blades (101) and the S-pole magnet vortex blades (102); the inside of the connecting end cover (5) is sequentially provided with a valve plate (8) and a nozzle seat (9), the valve plate (8) distributes air flow entering the connecting end cover to the nozzle seat (9), the nozzle seat (9) pressurizes and blows the air flow to the air flow channel (103) to drive the turbine rotor (10) to rotate so as to form a rotating magnetic field, and the coil (72) generates induction current.

2. The novel portable emergency rescue device according to claim 1, wherein nozzle holes (91) which are inclined inwards with the rotation axis and tangential to the circumference are formed in the end surfaces of two sides of the nozzle seat (9), and the number of the nozzle holes (91) is not less than 1; the outlet end of the nozzle hole (91) and the gas flow passage (103) are positioned on the same circumferential surface.

3. The novel portable emergency rescue device according to claim 2, characterized in that the valve plate (8) is circumferentially provided with a plurality of air flow through holes (81); the valve plate (8) rotates to enable the air flow through holes (81) to correspond to the nozzle holes (91) to realize a plurality of nozzle working modes.

4. The novel portable emergency rescue device according to claim 1, wherein the total number of magnetic poles of the N-pole magnet scroll blade (101) and the S-pole magnet scroll blade (102) is not less than 4.

5. The novel portable emergency rescue device according to claim 1, wherein the coil (72) is wound on the magnetic poles of the stator core (71), and the number of the magnetic poles of the stator core (71) is not less than 6.

6. The novel portable emergency rescue device according to claim 5, wherein the tail end of the coil (72) is in a star-shaped or triangle-shaped connection mode, the input end of the coil (72) is electrically connected with an external winding wiring (18), and the external winding wiring (18) is electrically connected with the battery pack (16) through a ballast (15).

7. The novel portable emergency rescue device according to claim 1, wherein the center of the closed end cover (6) is provided with a rotating shaft hole (62), the rotating shaft (11) is rotatably arranged in the rotating shaft hole (62) and the outer end of the rotating shaft is extended out of the rotating shaft hole; the shaft end of the rotating shaft (11) is provided with a connecting counter bore (111) or a square connecting block.

8. The novel portable emergency rescue device according to claim 1, wherein the outer circumference of the closed end cover (6) is provided with a plurality of exhaust holes (61) which are correspondingly provided with the outlet end of the gas flow passage (103), the exhaust holes (61) are provided with internal threads, and the internal threads are matched with the exhaust holes to form a sealing plug (13).

9. The novel portable emergency rescue device according to claim 8, wherein the exhaust hole (61) is in threaded connection with one end of the connecting rubber tube (20), and the other end of the connecting rubber tube (20) is connected with the breathing mask (19).

10. The novel portable emergency rescue device according to claim 1, wherein the axes of the nozzle seat (9) and the closed end cover (6) are provided with mounting position holes, and support bearings (12) for mounting the rotating shaft are arranged in the mounting position holes.