CN111617413A - Fire extinguisher protector for public safety - Google Patents
Fire extinguisher protector for public safety Download PDFInfo
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- CN111617413A CN111617413A CN202010516615.5A CN202010516615A CN111617413A CN 111617413 A CN111617413 A CN 111617413A CN 202010516615 A CN202010516615 A CN 202010516615A CN 111617413 A CN111617413 A CN 111617413A
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- fire extinguisher
- pressure
- shockproof
- protective shell
- public safety
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/76—Details or accessories
- A62C13/78—Suspending or supporting devices
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Abstract
The invention discloses a fire extinguisher protection device for public safety, which comprises a fire extinguisher box body, wherein a protection shell is arranged in the fire extinguisher box body, a shockproof metal ring is arranged on the inner wall of the protection shell, a fixing frame is fixedly connected in the shockproof metal ring, a shockproof rubber ring is arranged in the fixing frame, a shockproof gasket is arranged on the bottom surface in the protection shell, a sliding block is arranged at the bottom of the protection shell, a sliding groove is arranged on the bottom surface in the fire extinguisher box body, a glass protection cover is arranged on the front surface of the fire extinguisher box body, air holes are formed in the glass protection cover, a pull pin is arranged. According to the fire extinguisher protection device for public safety, the cylindrical structure is adopted, so that personnel injury caused by accidental collision is avoided, the protection shell arranged in the fire extinguisher protection device has a shockproof effect, the stabilizing effect is good, the glass protection cover is convenient to observe and insulate heat, and potential safety hazards of a fire extinguisher caused by overhigh internal temperature and pressure are avoided.
Description
Technical Field
The invention relates to the technical field of fire extinguisher protection devices, in particular to a fire extinguisher protection device for public safety.
Background
The fire extinguisher protector is used for holding fire extinguisher and is one fire extinguisher essential equipment for use in market, factory, warehouse, office building, station, dock and other public places. Fire extinguisher protection devices are generally placed in places where fires are likely to occur so that the fires can be handled in time when the fires occur, and fire extinguishers are generally stored in the fire extinguisher protection devices, which can protect the fire extinguishers to a certain extent.
The existing fire extinguisher protection device is generally square, and in public places, due to the fact that people easily collide, too sharp edges and corners can directly cause human body injuries, and fire extinguishers have great potential safety hazards after frequent collision, and in high-temperature weather, the fire extinguishers are too high in pressure in a box and even have explosion danger when being violently impacted, so that the fire extinguisher protection device for public safety is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The invention mainly aims to provide a public safety fire extinguisher protection device which can effectively solve the problems of easy collision and injury, unstable placement, lack of stability and overhigh pressure in a gas box in high-temperature days, which are explained in the background art.
In order to realize the purpose, the invention adopts the technical scheme that:
the fire extinguisher protection device for public safety comprises a fire extinguisher box body, wherein a protection shell is arranged in the fire extinguisher box body, a shockproof metal ring is arranged on the inner wall of the protection shell, a fixing frame is fixedly connected in the shockproof metal ring, a shockproof rubber ring is arranged in the fixing frame, a shockproof gasket is arranged at the center of the bottom surface in the protection shell, a sliding block is arranged at the bottom of the protection shell, a sliding groove is arranged on the bottom surface in the fire extinguisher box body, a handle is arranged on the outer wall of the protection shell, a glass protection cover is arranged on the front surface of the fire extinguisher box body, a vent hole is formed in the glass protection cover, a door handle is arranged below the vent hole, a pull pin is arranged on one side of the fire extinguisher box body, a pin.
Preferably, the fire extinguisher box body is cylindrical, the fire extinguisher box body is equally divided into two parts, the protective shell is cylindrical, and the outer diameter of the protective shell is matched with the inner diameter of the fire extinguisher box body.
Preferably, the shockproof metal ring is fixedly connected to the inner wall of the protective shell, the fixing frame is fixedly connected to the inner wall of the shockproof metal ring, the fixing frame is fixedly connected to the outer wall of the shockproof rubber ring, the shockproof rubber ring is fixedly connected to the inside of the protective shell through the fixing frame and the shockproof metal ring, the inner diameter of the shockproof rubber ring is matched with the outer diameter of the fire extinguisher, the outer diameter of the shockproof metal ring is matched with the inner diameter of the protective shell, the fixing frame is distributed in an equiangular circumference shape, the number of the fixing frames is 4, the shockproof gasket is located at the center of the bottom surface, and the outer diameter of the shockproof gasket is matched with the outer diameter of the.
Preferably, the sliding block is fixedly connected to the bottom surface of the protective shell, the sliding groove is fixedly installed on the bottom surface inside the fire extinguisher box body, the sliding block is matched with the sliding groove in size, and the protective shell is in sliding connection with the sliding groove arranged inside the fire extinguisher box body through the sliding block.
Preferably, the glass protective cover is made of transparent high-temperature-resistant glass, the air holes are distributed in bilateral symmetry, and the number of the air holes is 2.
Preferably, the outer diameter of the pull pin is matched with the inner diameter of the pin hole, and the position of the pull pin and the position of the pin hole are on the same vertical line.
Preferably, a pressure alarm device is arranged inside the protective shell;
the pressure alarm device comprises a flexible pressure sensor, a temperature sensor, a flexible battery, a threshold chip, a first trigger relay, a second trigger relay and a miniature electronic buzzer; wherein the content of the first and second substances,
the flexible pressure sensor is electrically connected with the first trigger relay and the threshold chip;
the temperature sensor is electrically connected with the second trigger relay and the threshold chip;
the first trigger relay is electrically connected with the second trigger relay, and the second trigger relay is electrically connected with the input end of the miniature electronic buzzer;
the flexible pressure sensor, the temperature sensor and the miniature electronic buzzer are respectively connected in parallel with the flexible battery; wherein the content of the first and second substances,
when the pressure monitored by the flexible pressure sensor exceeds a preset pressure threshold value, triggering the first trigger relay;
when the sensing temperature of the temperature sensor is larger than a preset temperature threshold value, the pressure monitored by the flexible pressure sensor is verified, and when the verification is successful, the miniature electronic buzzer is controlled to give an alarm through a second trigger relay;
the flexible battery is in a sheet shape and is attached to the inner layer of the protective shell.
Preferably, the flexible pressure sensor consists of conductive silver adhesive, an MWNT/PU composite film and a lead; wherein the content of the first and second substances,
the MWNT/PU composite membrane is arranged in the protective shell;
the conductive silver adhesive is respectively coated on two sides of the MWNT/PU composite membrane and fixes the MWNT/PU composite membrane;
the conducting wires are respectively connected with the conducting silver adhesive on the two sides of the MWNT/PU composite film, and each conducting wire comprises a first conducting wire and a second conducting wire; wherein the content of the first and second substances,
the first conducting wire is electrically connected with the threshold chip;
the second lead is electrically connected with the sheet-shaped battery;
when the pressure rises, the flexible pressure sensor transmits the pressure signal to the threshold chip through a first lead for comparison.
Preferably, the temperature sensor is composed of a first electrode, a second electrode and a semiconductor material; wherein the content of the first and second substances,
the semiconductor material comprises diamond, boron nitride, amorphous hydrogen-containing carbon, amorphous silicon, crystalline silicon, silicon carbide, gallium nitride, aluminum nitride or gallium arsenide;
the semiconductor material is arranged in the protective shell;
a first electrode and a second electrode are respectively attached to two sides of the semiconductor material;
the first electrode and the second electrode are further respectively attached to two sides inside the protective shell to fix the semiconductor material;
when the pressure rises, the temperature sensor determines a second pressure signal in the protective shell at the real-time temperature by sensing the real-time temperature, guides the second pressure signal into the threshold chip, and verifies whether the pressure signal of the flexible pressure sensor is correct or not through the second pressure signal.
Preferably, the pressure alarm device performs pressure alarm through the following steps:
step 1: determining, based on the flexible pressure sensor, a first pressure signal P1 within the protective shell (2):
wherein dxdy represents a double integral and D represents the internal distance of the protective shell (2); the alpha represents the relative dielectric constant of the MWNT/PU composite membrane; the S represents the area of the MWNT/PU composite membrane;
step 2: determining, based on the temperature sensor, a second pressure signal P2 within the containment shell (2):
wherein, the SwRepresents the area of the semiconductor material of the temperature sensor; the t represents the monitoring time of the temperature sensor; k represents a temperature medium constant of air; the n represents a temperature and pressure conversion coefficient;
and step 3: comparing the first pressure signal P1 and the second pressure signal P2;
when the pressure signal of the flexible pressure sensor is correct when the pressure signal is P1-P2, the second trigger relay is triggered, and the second trigger relay controls the miniature electronic buzzer to alarm;
when the P1 ≠ P2, it indicates that the pressure signal of the flexible pressure sensor is erroneous, and the second trigger relay is not triggered.
Compared with the prior art, the invention has the following beneficial effects: this fire extinguisher protector for public safety, be cylindric through setting up the box appearance, it exposes externally edges and corners to have reduced the box, it causes personnel's injury because unexpected collision to have alleviateed, and set up the protecting crust again inside the fire extinguisher box, further guard action has been played, the protecting crust inner wall is provided with the becket that takes precautions against earthquakes, the becket that takes precautions against earthquakes inside is provided with shockproof rubber ring, the protecting crust bottom is provided with shockproof gasket, stable support and fixed action have been played to the fire extinguisher of placing in the protecting crust inside, in addition, the fire extinguisher box openly has set up high temperature resistant and thermal-insulated clear glass protection casing, be provided with 2 bleeder vents on the glass protection casing, the people of being convenient for on the one hand observe the box is inside, the bleeder vent can balance box internal and external pressure, fine guard action.
Drawings
FIG. 1 is a schematic view showing the overall structure of a fire extinguisher protection device for public safety according to the present invention;
FIG. 2 is a schematic top view of a protective housing of a fire extinguisher protection device for public safety according to the present invention;
FIG. 3 is a schematic front view of the fire extinguisher protection device for public safety of the present invention;
FIG. 4 is a schematic view of the top view of the fire extinguisher housing of the fire extinguisher protection device for public safety.
In the figure: 1. a fire extinguisher cabinet; 2. a protective shell; 3. a shock-proof metal ring; 4. a fixed mount; 5. a shockproof rubber ring; 6. a shockproof pad; 7. a slider; 8. a chute; 9. a handle; 10. a glass shield; 11. air holes are formed; 12. a door handle; 13. pulling a pin; 14. a pin hole; 15. and a door hinge.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the technical scheme of the invention is further elaborated below.
As shown in the figure 1-2, the fire extinguisher protection device for public safety comprises a fire extinguisher box body 1, a protective shell 2 is arranged inside the fire extinguisher box body 1, a shockproof metal ring 3 is arranged on the inner wall of the protective shell 2, a fixed frame 4 is fixedly connected inside the shockproof metal ring 3, a shockproof rubber ring 5 is arranged inside the fixed frame 4, a shockproof gasket 6 is arranged at the center of the bottom surface inside the protective shell 2, a sliding block 7 is arranged at the bottom of the protective shell, a sliding groove 8 is arranged on the bottom surface inside the fire extinguisher box body 1, a handle 9 is arranged on the outer wall of the protective shell, a glass protective cover 10 is arranged on the front surface of the fire extinguisher box body 1, an air vent 11 is arranged on the glass protective cover 10, a door handle 12 is arranged below the air vent 11, a pull pin 13 is arranged on.
In this embodiment, fire extinguisher box 1 is outside to be cylindricly, fire extinguisher box 1 etc. divide into two parts, and protecting crust 2 is the cask form, and the external diameter dimension of protecting crust 2 and fire extinguisher box 1's internal diameter dimension looks adaptation has played double-deck guard action to inside fire extinguisher through setting up fire extinguisher box 1 and protecting crust 2, and the cylinder design makes fire extinguisher box 1 whole more mellow and full simultaneously, has reduced the injury to personnel when unexpected collision.
3 fixed connection of metal ring takes precautions against earthquakes at the 2 inner walls of protecting crust, 4 fixed connection of mount are at 3 inner walls of metal ring take precautions against earthquakes, 4 fixed connection of mount are at 5 outer walls of rubber ring take precautions against earthquakes, rubber ring 5 takes precautions against earthquakes through mount 4 and 3 fixed connection of metal ring take precautions against earthquakes inside protecting crust 2, 5 internal diameter size and the adaptation of fire extinguisher external diameter size of rubber ring take precautions against earthquakes, 3 external diameter size of metal ring take precautions against earthquakes and 2 internal diameter size looks adaptations of protecting crust, mount 4 equiangular circumference form distributions, the quantity of mount 4 is 4, gasket 6 takes precautions against earthquakes is located 2 bottom surface centers of protecting crust, gasket 6 takes precautions against earthquakes's external diameter size and fire extinguisher external diameter size looks adaptation, through setting up metal ring 3 takes precautions.
The glass protective cover 10 is made of transparent high-temperature-resistant glass, the air holes 11 are symmetrically distributed in the left and right directions, the number of the air holes 11 is 2, the glass protective cover 10 plays a good heat insulation role in high-temperature weather, the air pressure inside and outside the box can be well balanced through the air holes 11, the air pressure inside the box is prevented from being increased rapidly due to overhigh temperature, and the safety risk of the fire extinguisher in high-temperature weather is greatly reduced.
The outer diameter of the pull pin 13 is matched with the inner diameter of the pin hole 14, the position of the pull pin 13 and the pin hole 14 are located on the same vertical line, the pull pin 13 and the pin hole 14 play a good fixing role for the box body, and when an emergency happens, a user can directly extract the fire extinguisher by pulling out the pull pin 13 and taking out the protective shell 2, so that time and labor are saved.
The invention is a public safety fire extinguisher protection device, when in use, a user puts a fire extinguisher in a protective shell 2, the bottom surface of the fire extinguisher is tightly attached to a protective gasket 6, the outer wall of the fire extinguisher is tightly attached to a shockproof rubber ring 5 and is stably fixed in the protective shell 2 through a fixing frame 4 at the middle part, then a slide block 7 at the bottom of the protective shell 2 is pushed into a chute 8 at the bottom surface in the box body, a glass protective cover 10 is closed and is inserted into a pull pin 13 to a pin hole 14, the glass protective cover 10 is transparent, the user can easily observe the internal situation and has high temperature resistance and heat insulation function, the fire extinguisher box body 1 is cylindrical after being closed, no too sharp corner angle exists, the injury caused by accidental collision is reduced, when the fire extinguisher is used, the user pulls out the pull pin 13, opens the glass protective cover 10 and pulls out the protective shell 2 fixed at, the fire extinguisher can be used by taking out the fire extinguisher from the inside of the protective shell 2.
Preferably, a pressure alarm device is arranged inside the protective shell;
the pressure alarm device comprises a flexible pressure sensor, a temperature sensor, a flexible battery, a threshold chip, a first trigger relay, a second trigger relay and a miniature electronic buzzer; wherein the content of the first and second substances,
the flexible pressure sensor is electrically connected with the first trigger relay and the threshold chip;
the temperature sensor is electrically connected with the second trigger relay and the threshold chip;
the first trigger relay is electrically connected with the second trigger relay, and the second trigger relay is electrically connected with the input end of the miniature electronic buzzer;
the flexible pressure sensor, the temperature sensor and the miniature electronic buzzer are respectively connected in parallel with the flexible battery; wherein the content of the first and second substances,
when the pressure monitored by the flexible pressure sensor exceeds a preset pressure threshold value, triggering the first trigger relay;
when the sensing temperature of the temperature sensor is larger than a preset temperature threshold value, the pressure monitored by the flexible pressure sensor is verified, and when the verification is successful, the miniature electronic buzzer is controlled to give an alarm through a second trigger relay;
the flexible battery is in a sheet shape and is attached to the inner layer of the protective shell.
The principle and the beneficial effects of the invention are as follows: in order to solve the pressure problem of the fire extinguisher protection device, although the air holes 11 are arranged, the air holes 11 can play a physical pressure reduction role, but the air holes are possibly blocked by dust and cannot be completely reduced in pressure, therefore, the pressure alarm device is also provided with a pressure alarm device, the pressure alarm device is based on a flexible pressure sensor and a temperature sensor, the flexible pressure sensor is a capacitive pressure sensor, when the pressure rises, the current output by the flexible pressure sensor changes due to the capacitance change, and when the pressure rises, the capacitance is increased, and the output current is reduced; and a pressure threshold is preset on the threshold chip, so that when the pressure changes, the first trigger relay is triggered through a command signal of the threshold chip and a current signal of the flexible pressure sensor. However, in some special cases, such as artificial squeezing or falling, the squeezing may also cause the pressure sensed by the flexible pressure sensor to change. Because the pressure changes when the temperature changes, the temperature signal of the temperature sensor is converted into a second pressure signal through the threshold chip, the second pressure signal is compared with the pressure signal of the flexible pressure sensor, when the pressure monitored by the two sensors is the same, the pressure signals sensed by the pressure sensors are correct, the threshold chip drives a second trigger relay which controls the miniature electronic buzzer to send out an alarm signal, the pressure signal is verified and detected doubly through the induction signals of the two sensors, and then alarm when the internal pressure is not balanced, the second trigger relay is connected with the first trigger relay because the second trigger relay is a double-trigger relay, the micro electronic buzzer can be controlled to alarm only by the simultaneous triggering of the first triggering relay and the threshold value chip.
Preferably, the flexible pressure sensor consists of conductive silver adhesive, an MWNT/PU composite film and a lead; wherein the content of the first and second substances,
the MWNT/PU composite membrane is arranged in the protective shell;
the conductive silver adhesive is respectively coated on two sides of the MWNT/PU composite membrane and fixes the MWNT/PU composite membrane;
the conducting wires are respectively connected with the conducting silver adhesive on the two sides of the MWNT/PU composite film, and each conducting wire comprises a first conducting wire and a second conducting wire; wherein the content of the first and second substances,
the first conducting wire is electrically connected with the threshold chip;
the second lead is electrically connected with the sheet-shaped battery;
when the pressure rises, the flexible pressure sensor transmits the pressure signal to the threshold chip through a first lead for comparison.
The principle and the beneficial effects of the invention are as follows: the flexible pressure sensor is composed of the conductive silver adhesive and the MWNT/PU composite film, and can occupy the inner layer space in the protective cover 2 as little as possible, so that the protective cover 2 does not have bulges due to the inner layer device, and the sheet-shaped battery can be attached to the inner layer of the protective cover 2. Furthermore, signal current can be output through the capacitance change of the conductive silver colloid and the MWNT/PU composite membrane when the pressure changes, and the pressure sensor is a dynamic pressure sensor.
Preferably, the temperature sensor is composed of a first electrode, a second electrode and a semiconductor material; wherein the content of the first and second substances,
the semiconductor material comprises diamond, boron nitride, amorphous hydrogen-containing carbon, amorphous silicon, crystalline silicon, silicon carbide, gallium nitride, aluminum nitride or gallium arsenide;
the semiconductor material is arranged in the protective shell;
a first electrode and a second electrode are respectively attached to two sides of the semiconductor material;
the first electrode and the second electrode are further respectively attached to two sides inside the protective shell to fix the semiconductor material;
when the pressure rises, the temperature sensor determines a second pressure signal in the protective shell 2 at the real-time temperature by sensing the real-time temperature, guides the second pressure signal into the threshold chip, and verifies whether the pressure signal of the flexible pressure sensor is correct or not through the second pressure signal.
The principle and the beneficial effects of the invention are as follows: the temperature sensor comprises a first electrode, a second electrode and a semiconductor material, wherein the semiconductor material can form a thermistor, so that the resistance changes under the condition of temperature change, and the resistance is more sensitive to temperature relative to capacitance, therefore, the resistance change, the current change and the pressure change of the temperature sensor are finally converted into pressure change.
Preferably, the pressure alarm device performs pressure alarm through the following steps:
step 1: based on the flexible pressure sensor, a first pressure signal P1 within the protective shell 2 is determined:
wherein dxdy represents a double integral, and D represents an inner distance of the protective shell 2; the alpha represents the relative dielectric constant of the MWNT/PU composite membrane; s represents the area formed by the first electrode, the second electrode and the semiconductor material;
step 2: determining, based on the temperature sensor, a second pressure signal P2 inside the protective shell 2:
wherein, the SwRepresents the area of the semiconductor material of the temperature sensor; the t represents the monitoring time of the temperature sensor; k represents a temperature medium constant of air; the n represents a temperature and pressure conversion coefficient;
and step 3: comparing the first pressure signal P1 and the second pressure signal P2;
when the pressure signal of the flexible pressure sensor is correct when the pressure signal is P1-P2, the second trigger relay is triggered, and the second trigger relay controls the miniature electronic buzzer to alarm;
when the P1 ≠ P2, it indicates that the pressure signal of the flexible pressure sensor is erroneous, and the second trigger relay is not triggered.
The principle and the beneficial effects of the invention are as follows: in the step of pressure alarm, firstly, the pressure signal of the pressure sensor is obtained in a double integral mode under the condition that the dielectric parameter of the flexible circuit board, the area parameter of the capacitance change area and the inner distance are determined, and the protective shell 2 is cylindrical, so that the inner distance is the inner diameter of the protective shell 2. The temperature sensor is changed along with time, so that the pressure signal of the temperature sensor is determined based on the area of the semiconductor material, four pieces of temperature change, the temperature medium constant of air, temperature and pressure conversion coefficients; and finally, determining whether the two pressure signals are the same or not, further determining whether the second trigger relay is triggered or not, and finally giving an alarm after the second trigger relay is doubly triggered, wherein the alarm is a miniature electronic buzzer which is a sound alarm without lamplight.
The foregoing shows and describes the general principles and features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a fire extinguisher protector for public safety which characterized in that: comprises a fire extinguisher box body (1), a protective shell (2) is arranged in the fire extinguisher box body (1), a shockproof metal ring (3) is arranged on the inner wall of the protective shell (2), a fixing frame (4) is fixedly connected in the shockproof metal ring (3), a shockproof rubber ring (5) is arranged in the fixing frame (4), a shockproof gasket (6) is arranged at the center of the inner bottom surface of the protective shell (2), a sliding block (7) is arranged at the bottom of the protective shell (2), a sliding chute (8) is arranged at the inner bottom surface of the fire extinguisher box body (1), a handle (9) is arranged on the outer wall of the protective shell (2), a glass protective cover (10) is arranged on the front surface of the fire extinguisher box body (1), air holes (11) are formed in the glass protective cover (10), a door handle (12) is arranged below the air holes (11), and a pull, the fire extinguisher cabinet body (1) is characterized in that a pin hole (14) is formed in the other side of the fire extinguisher cabinet body (1), and a door hinge (15) is arranged on the fire extinguisher cabinet body (1).
2. A fire extinguisher guard for public safety according to claim 1, wherein: the fire extinguisher box body (1) is externally cylindrical, the fire extinguisher box body (1) is equally divided into two parts, the protective shell (2) is cylindrical, and the outer diameter of the protective shell (2) is matched with the inner diameter of the fire extinguisher box body (1).
3. A fire extinguisher guard for public safety according to claim 1, wherein: the utility model discloses a take precautions against earthquakes, including protective housing (2), mount (4), rubber ring (5), shockproof rubber ring (3), shockproof rubber ring (6), shockproof gasket (6), shockproof metal ring (3) fixed connection is at protective housing (2) inner wall, mount (4) fixed connection is at shockproof metal ring (3) inner wall, mount (4) fixed connection is at shockproof rubber ring (5) outer wall, shockproof rubber ring (5) pass through mount (4) and shockproof metal ring (3) fixed connection inside protective housing (2), shockproof rubber ring (5) internal diameter size and fire extinguisher external diameter size looks adaptation, shockproof metal ring (3) external diameter size and protective housing (2) internal diameter size looks adaptation, the equal angle circumference form distribution of mount (4), the quantity of mount (4) is 4, shockproof gasket (6) are located bottom surface center department, the external diameter size and the fire extinguisher external diameter size looks adaptation of shockproof.
4. A fire extinguisher guard for public safety according to claim 1, wherein: slider (7) fixed connection is in protecting crust (2) bottom surface, spout (8) fixed mounting is in the inside bottom surface of fire extinguisher box (1), the size looks adaptation of slider (7) and spout (8), protecting crust (2) are through slider (7) and the spout (8) sliding connection who sets up in fire extinguisher box (1) inside.
5. A fire extinguisher guard for public safety according to claim 1, wherein: the glass protective cover (10) is made of transparent high-temperature-resistant glass, the air holes (11) are distributed in bilateral symmetry, and the number of the air holes (11) is 2.
6. A fire extinguisher guard for public safety according to claim 1, wherein: the outer diameter of the pull pin (13) is matched with the inner diameter of the pin hole (14), and the position of the pull pin (13) and the pin hole (14) are on the same vertical line.
7. A fire extinguisher guard for public safety according to claim 1, wherein: a pressure alarm device is arranged inside the protective shell (2);
the pressure alarm device comprises a flexible pressure sensor, a temperature sensor, a flexible battery, a threshold chip, a first trigger relay, a second trigger relay and a miniature electronic buzzer; wherein the content of the first and second substances,
the flexible pressure sensor is electrically connected with the first trigger relay and the threshold chip;
the temperature sensor is electrically connected with the second trigger relay and the threshold chip;
the first trigger relay is electrically connected with the second trigger relay, and the second trigger relay is electrically connected with the input end of the miniature electronic buzzer;
the flexible pressure sensor, the temperature sensor and the miniature electronic buzzer are respectively connected in parallel with the flexible battery; wherein the content of the first and second substances,
when the pressure monitored by the flexible pressure sensor exceeds a preset pressure threshold value, triggering the first trigger relay;
when the sensing temperature of the temperature sensor is larger than a preset temperature threshold value, the pressure monitored by the flexible pressure sensor is verified, and when the verification is successful, the miniature electronic buzzer is controlled to give an alarm through a second trigger relay;
the flexible battery is in a sheet shape and is attached to the inner layer of the protective shell.
8. A fire extinguisher guard for public safety according to claim 7, wherein: the flexible pressure sensor consists of conductive silver adhesive, an MWNT/PU composite film and a lead; wherein the content of the first and second substances,
the MWNT/PU composite membrane is arranged inside the protective shell (2);
the conductive silver adhesive is respectively coated on two sides of the MWNT/PU composite membrane and fixes the MWNT/PU composite membrane;
the conducting wires are respectively connected with the conducting silver adhesive on the two sides of the MWNT/PU composite film, and each conducting wire comprises a first conducting wire and a second conducting wire; wherein the content of the first and second substances,
the first conducting wire is electrically connected with the threshold chip;
the second lead is electrically connected with the sheet-shaped battery;
when the pressure rises, the flexible pressure sensor transmits the pressure signal to the threshold chip through a first lead for comparison.
9. A fire extinguisher guard for public safety according to claim 7, wherein: the temperature sensor consists of a first electrode, a second electrode and a semiconductor material; wherein the content of the first and second substances,
the semiconductor material comprises diamond, boron nitride, amorphous hydrogen-containing carbon, amorphous silicon, crystalline silicon, silicon carbide, gallium nitride, aluminum nitride or gallium arsenide;
the semiconductor material is arranged inside the protective shell (2);
a first electrode and a second electrode are respectively attached to two sides of the semiconductor material;
the first electrode and the second electrode are further respectively attached to two sides of the protective shell (2) to fix the semiconductor material;
when the pressure rises, the temperature sensor determines a second pressure signal in the protective shell (2) at the real-time temperature by sensing the real-time temperature, introduces the second pressure signal into the threshold chip, and verifies whether the pressure signal of the flexible pressure sensor is correct or not through the second pressure signal.
10. A fire extinguisher guard device for public safety according to claims 7 to 9, wherein: the pressure alarm device gives an alarm through the following steps:
step 1: determining, based on the flexible pressure sensor, a first pressure signal P1 within the protective shell (2):
wherein, D is2dxdy represents the double integral, D represents the internal distance of the protective shell (2), α represents the relative dielectric constant of the MWNT/PU composite membrane, S represents the area of the MWNT/PU composite membrane;
step 2: determining, based on the temperature sensor, a second pressure signal P2 within the containment shell (2):
wherein, the SwRepresents the area of the semiconductor material of the temperature sensor; the t represents the monitoring time of the temperature sensor; k represents a temperature medium constant of air; the n represents a temperature and pressure conversion coefficient;
and step 3: comparing the first pressure signal P1 and the second pressure signal P2;
when the pressure signal of the flexible pressure sensor is correct when the pressure signal is P1-P2, the second trigger relay is triggered, and the second trigger relay controls the miniature electronic buzzer to alarm the pressure;
when the P1 ≠ P2, it indicates that the pressure signal of the flexible pressure sensor is erroneous, and the second trigger relay is not triggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010516615.5A CN111617413A (en) | 2020-06-09 | 2020-06-09 | Fire extinguisher protector for public safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010516615.5A CN111617413A (en) | 2020-06-09 | 2020-06-09 | Fire extinguisher protector for public safety |
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|---|---|
| CN111617413A true CN111617413A (en) | 2020-09-04 |
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| CN202010516615.5A Withdrawn CN111617413A (en) | 2020-06-09 | 2020-06-09 | Fire extinguisher protector for public safety |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112972951A (en) * | 2021-03-03 | 2021-06-18 | 江西进贤消防化工实业有限公司 | Fire extinguisher protector for public safety |
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2020
- 2020-06-09 CN CN202010516615.5A patent/CN111617413A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112972951A (en) * | 2021-03-03 | 2021-06-18 | 江西进贤消防化工实业有限公司 | Fire extinguisher protector for public safety |
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Application publication date: 20200904 |