Mining safety helmet with active protection function

Abstract

The invention discloses a mining safety helmet with an active protection function, which belongs to the technical field of safety helmets and comprises a safety helmet body, a pressure monitoring component, a gas monitoring and alarming component, a control component, an oxygen supply component, a power supply component, a signal transmission line and a wire. The pressure monitoring assembly, the gas monitoring and alarming assembly, the control assembly, the oxygen supply assembly and the power supply assembly are connected with the safety helmet body, and the pressure monitoring assembly, the gas monitoring and alarming assembly, the control assembly and the oxygen supply assembly are connected with the power supply assembly through wires. The pressure monitoring assembly, the gas monitoring and alarming assembly and the oxygen supply assembly are respectively connected with the control assembly through signal transmission lines. According to the invention, gas concentration change and air pressure mutation in external environment air can be sensed in time, oxygen is actively and instantaneously provided for the mouth and nose range of a person in distress, the person is prevented from death of suffocation caused by faint and loss of action ability due to inhalation of high-concentration gas in the early stage of distress, and casualty accidents can be reduced to a great extent.

Description

Technical Field

[0001] The invention belongs to the technical field of safety helmets, and in particular relates to a mining safety helmet with an active protection function. Background Art

[0002] Gas is a colorless, tasteless, odorless combustible gas, lighter than air, highly diffusible, and its hazards are very hidden. Gas has a major impact on coal mine production; high concentrations of gas will reduce the oxygen content in the air, causing suffocation; when the gas content in the air is 5% to 16%, it will cause a gas explosion when it encounters a fire, generating a shock wave of high temperature and high pressure (in an environment of 1 atmosphere, the gas explosion can produce a pressure of 7 to 9 atmospheres), causing casualties and equipment damage, while producing a large amount of toxic and harmful gases, such as carbon monoxide and carbon dioxide, further exacerbating the hazards. Studies have shown that when the oxygen content is 6% to 8%, people will faint and lose consciousness; when the oxygen content is lower than 6%, people will die within 6 to 8 minutes; when the oxygen content is 2% to 3%, people will die immediately within 45 seconds. After high concentrations of gas accumulation or gas explosion, the oxygen content in the ambient air will drop sharply, causing harm to people.

[0003] Before entering a coal mine containing gas for underground work, workers need to wear a safety helmet. The existing mining safety helmets have relatively simple protective functions and can only provide physical protection for the heads of construction workers, but do not have other functions. Specifically, they do not have the function of gas detection. Workers need to carry additional gas detection tools to safely enter different workplaces. Carrying gas detection tools is relatively cumbersome and inconvenient for work.

[0004] The working conditions underground in coal mines are extremely complex. Gas accumulation is easy to occur in poorly ventilated areas. When workers mistakenly enter the area without carrying gas detection tools, they are prone to the risk of gas suffocation and death. At the same time, in mines with gas disasters, if a coal and gas outburst or a gas explosion occurs, high-concentration gas will fill the underground tunnels in a very short time. When an accident occurs, the workers will be under great psychological pressure and will be overly nervous, which will affect the speed of wearing self-rescue devices, and at the same time they will have an emergency reaction and experience shortness of breath. Under the influence of these two factors, people within the disaster area can easily inhale high-concentration gas and faint, resulting in irreparable losses.

[0005] In the above typical scenarios, if when personnel mistakenly enter a gas accumulation area, there can be an external device or equipment to promptly remind the operating personnel and provide oxygen supply instantly, or when a coal and gas outburst or gas explosion occurs, it can sense the sharp increase in gas concentration or the sudden change in air pressure and provide oxygen supply instantly, it will prevent personnel from inhaling high-concentration gas in the early stage of distress, extend the exit time of personnel in distress, or allow personnel in distress to have sufficient time to calmly evacuate wearing a self-rescuer, which can greatly reduce the occurrence of casualties. In the prior art, there is a gas monitoring device that can be worn on the waist, but it has the problem of untimely gas detection.

[0006] Therefore, in order to better protect the safety of workers underground in coal mines, it is necessary to invent a safety helmet with active protection functions in addition to basic physical protection functions. When workers mistakenly enter a dangerous area or are in danger, they can sense the danger in time and obtain instant oxygen supply, helping the workers to safely leave the dangerous area and reduce casualties. Summary of the invention

[0007] The present invention aims at the above-mentioned problems, makes up for the deficiencies of the prior art, and provides a mining safety helmet with active protection function; by wearing the mining safety helmet with active protection function of the present invention, when workers mistakenly enter a dangerous area or are in danger, they can sense the danger in time and obtain instant oxygen supply, which helps the workers to safely leave the dangerous area and reduce casualties.

[0008] To achieve the above purpose, the present invention adopts the following technical solution.

[0009] The present invention provides a mining safety helmet with active protection function, comprising a safety helmet body, a pressure monitoring component, a gas monitoring and alarm component, a control component, an oxygen supply component, a power supply component, a signal transmission line, and an electric wire; the pressure monitoring component, the gas monitoring and alarm component, the control component, the oxygen supply component and the power supply component are respectively arranged on the safety helmet body in different areas that do not affect wearing, the pressure monitoring component, the gas monitoring and alarm component, the control component, the oxygen supply component and the power supply component are respectively connected to the safety helmet body, the pressure monitoring component, the gas monitoring and alarm component, the control component and the oxygen supply component are respectively connected to the power supply component through electric wires, and the pressure monitoring component, the gas monitoring and alarm component and the oxygen supply component are respectively connected to the control component through signal transmission lines.

[0010] As a preferred solution of the present invention, the safety helmet body includes a shell, a visor, a brim, and a top rib. The shell is provided with a lamp holder for placing a mining lamp, the brim is provided with mounting holes, and the brim and the visor are provided with part fixing screws; the part fixing screws are used for connecting the pressure monitoring component, the gas monitoring and alarm component, the control component, the oxygen supply component, the power supply component to the brim and the visor, and the mounting holes are used as channels for signal transmission lines and electrical wires.

[0011] As another preferred scheme of the present invention, the pressure monitoring component is installed on the brim below the lamp holder directly in front of the shell, and the pressure monitoring component includes an ambient gas pressure sensor, a first component shell, and a shell air vent. The ambient gas pressure sensor is arranged in the first component shell; a plurality of shell air vents are arranged on the first component shell to facilitate the entry of ambient air into the pressure monitoring component, and the ambient gas pressure sensor collects the numerical value of the gas pressure in the air in real time.

[0012] As another preferred embodiment of the present invention, the gas monitoring and alarm component is installed on the brim of the shell side, and the gas monitoring and alarm component includes a gas sensor, an audible and visual alarm, a second component shell, and a gas channel, and the gas sensor and the audible and visual alarm are arranged in the second component shell; the second component shell is matched with the outer shape of the fitting part between the shell and the brim, and the width of the second component shell does not exceed the width of the brim; a number of gas channels are arranged on the second component shell to facilitate the entry of ambient air into the gas monitoring and alarm component, and the gas sensor collects the concentration of gas in the air in the head area in real time.

[0013] As another preferred embodiment of the present invention, the oxygen supply assembly is installed under the visor, and the oxygen supply assembly includes an oxygen source, an oxygen source switch control valve, an trachea, an oxygen curtain, and an oxygen curtain opening control valve. The oxygen source is connected to the oxygen curtain through the trachea, and an oxygen outlet channel is provided on the oxygen curtain; the oxygen source is provided with an oxygen source switch control valve for controlling the oxygen supply to the oxygen curtain, and the oxygen curtain is provided with an oxygen curtain opening control valve for controlling the oxygen supply to the operator; after the oxygen curtain is opened, it is suspended at the mouth and nose of the operator, and the oxygen from the oxygen source is provided to the operator through the oxygen outlet channel.

[0014] As another preferred embodiment of the present invention, when the air pressure value reaches 0.2MPa, the ambient gas pressure sensor transmits the signal to the control component through the signal transmission line, the control component issues an oxygen supply instruction to the oxygen supply component, the oxygen curtain falls to cover the mouth and nose area, and the oxygen source continuously transmits oxygen to the oxygen curtain through the trachea to supply oxygen to the operator.

[0015] As another preferred embodiment of the present invention, when the gas concentration in the ambient air reaches 1%, the gas sensor transmits the signal to the sound and light alarm and the control component through the signal transmission line, the sound and light alarm is activated, and at the same time the control component issues an oxygen supply instruction to the oxygen supply component, the oxygen curtain falls to cover the mouth and nose area, and the oxygen source continuously transmits oxygen to the oxygen curtain through the trachea to supply oxygen to the workers.

[0016] As another preferred embodiment of the present invention, the power supply component is installed on the brim on the other side of the shell, the power supply component is matched with the shape of the fitting part between the shell and the brim, and the width of the power supply component does not exceed the width of the brim.

[0017] Beneficial effects of the present invention:

[0018] (1) Since gas is lighter than air, the accumulated high-concentration gas generally accumulates from the tunnel roof downwards. Compared with the previous gas monitoring device worn on the waist, the gas monitoring and alarm component installed on the safety helmet body of the present invention can provide warnings earlier, reminding workers to exit the dangerous area and prevent accidental inhalation of gas.

[0019] (2) The present invention can timely sense the changes in gas concentration and sudden changes in air pressure in the external environment air through the gas monitoring and alarm components and the pressure monitoring components installed on the helmet body, and actively provide instant oxygen supply to the mouth and nose area of ​​the person in distress, so that the person in distress has ample time to calmly wear a self-rescuer and evacuate, avoiding the person from inhaling high-concentration gas in the early stage of distress and fainting, losing the ability to move and causing suffocation and death, which can greatly reduce the occurrence of casualties. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The present invention is a front view structural schematic diagram of a mining helmet with active protection function.

[0022] Figure 2 The present invention is a schematic diagram of the side structure of a mining helmet with active protection function.

[0023] Figure 3 The present invention is a schematic diagram of the bottom view of a mining helmet with active protection function.

[0024] Figure 4The present invention is a schematic structural diagram of a pressure monitoring component in a mining helmet with an active protection function.

[0025] Figure 5 The present invention is a schematic structural diagram of a gas monitoring and alarm component in a mining helmet with an active protection function.

[0026] Figure 6 The present invention is a schematic structural diagram of an oxygen curtain of an oxygen supply assembly in a mining safety helmet with an active protection function when the oxygen curtain is opened.

[0027] The marks in the figure include: 1 is the helmet body, 2 is the pressure monitoring component, 3 is the gas monitoring and alarm component, 4 is the control component, 5 is the oxygen supply component, 6 is the power supply component, 7 is the signal transmission line, and 8 is the wire;

[0028] 101 is the housing, 102 is the visor, 103 is the brim, 104 is the top rib, 105 is the mounting hole, 106 is the lamp holder, and 107 is the screws for fixing the parts;

[0029] 201 is an ambient gas pressure sensor, 202 is a first component housing, and 203 is a housing vent hole;

[0030] 301 is a gas sensor, 302 is an audible and visual alarm, 303 is a second component housing, 304 is a gas channel, 305 is a cable channel,

[0031] 501 is an oxygen source, 502 is an oxygen source switch control valve, 503 is an air pipe, 504 is an oxygen curtain, 505 is an oxygen curtain opening control valve, and 506 is an oxygen outlet channel. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] like Figures 1 to 6As shown, a mining helmet with active protection function provided by an embodiment of the present invention includes a helmet body 1, a pressure monitoring component 2, a gas monitoring and alarm component 3, a control component 4, an oxygen supply component 5, a power supply component 6, a signal transmission line 7, and an electric wire 8; the pressure monitoring component 2, the gas monitoring and alarm component 3, the control component 4, the oxygen supply component 5 and the power supply component 6 are respectively connected to the helmet body 1, the pressure monitoring component 2, the gas monitoring and alarm component 3, the control component 4, the oxygen supply component 5 are respectively connected to the power supply component 6 through the electric wire 8, the pressure monitoring component 2, the gas monitoring and alarm component 3, the oxygen supply component 5 are respectively connected to the control component 4 through the signal transmission line 7, and the pressure monitoring component 2, the gas monitoring and alarm component 3, the control component 4, the oxygen supply component 5 and the power supply component 6 are respectively arranged on the helmet body 1 in different areas that do not affect wearing.

[0034] The helmet body 1 includes a shell 101, a visor 102, a brim 103, and a top rib 104. The shell 101 is provided with a lamp holder 106 for placing a mining lamp, the brim 103 is provided with a mounting hole 105, and the brim 103 and the brim 102 are both provided with part fixing screws 107; the part fixing screws 107 are used to connect the pressure monitoring component 2, the gas monitoring and alarm component 3, the control component 4, the oxygen supply component 5, the power supply component 6 with the brim 103 and the brim 102, and the mounting hole 105 is used as a channel for the signal transmission line 7 and the electric wire 8.

[0035] The pressure monitoring component 2 is installed on the brim 102 below the lamp holder 106 in front of the shell 101. The pressure monitoring component 2 includes an ambient gas pressure sensor 201, a component shell 202, and a shell air vent 203. The ambient gas pressure sensor 201 is arranged in the first component shell 202; a plurality of shell air vents 203 are arranged on the first component shell 202 to facilitate the entry of ambient air into the pressure monitoring component 2, and the ambient gas pressure sensor 201 collects the numerical value of the gas pressure in the air in real time; when the air pressure value reaches 0.2MPa, the ambient gas pressure sensor 201 transmits the signal to the control component 4 through the signal transmission line 7, and the control component 4 issues an oxygen supply instruction to the oxygen supply component 5, and the oxygen curtain 504 falls to cover the mouth and nose area, and the oxygen source 501 continuously transmits oxygen to the oxygen curtain 504 through the trachea 503 to supply oxygen to the operator.

[0036] The gas monitoring and alarm component 3 is installed on the brim 103 on one side of the shell 101. The gas monitoring and alarm component 3 includes a gas sensor 301, an audible and visual alarm 302, a second component shell 303, and a gas channel 304. The gas sensor 301 and the audible and visual alarm 302 are arranged in the second component shell 303; the second component shell 303 is matched with the outer shape of the fitting part between the shell 101 and the brim 103, and the width of the second component shell 303 does not exceed the width of the brim 103; a plurality of gas channels 304 are arranged on the second component shell 303 to facilitate the entry of ambient air into the gas monitoring and alarm component 3. A cable channel 305 is also provided on the top, which is used as a passage for the signal transmission line 7 and the electric wire 8 connected to the gas sensor 301 and the sound and light alarm 302; the gas sensor 301 collects the concentration of gas in the air in the head area in real time; when the gas concentration in the ambient air reaches 1%, the gas sensor 301 transmits the signal to the sound and light alarm 302 and the control component through the signal transmission line 7, and the sound and light alarm 302 is activated to play a danger warning effect. At the same time, the control component 4 issues an oxygen supply instruction to the oxygen supply component 5, and the oxygen curtain 504 falls to cover the mouth and nose area. The oxygen source 501 continuously transmits oxygen to the oxygen curtain 504 through the trachea 503 to supply oxygen to the operator.

[0037] The oxygen supply assembly 5 is installed below the visor 102, and the oxygen supply assembly 5 includes an oxygen source 501, an oxygen source switch control valve 502, an air pipe 503, an oxygen curtain 504, and an oxygen curtain opening control valve 505. The oxygen source 501 is connected to the oxygen curtain 504 through the air pipe 503, and the oxygen curtain 504 is provided with an oxygen outlet channel 506; the oxygen source 501 is provided with an oxygen source switch control valve 502 for controlling the oxygen supply to the oxygen curtain 504, and the oxygen curtain 504 is provided with an oxygen curtain opening control valve 505 for controlling the oxygen supply to the operator; after the oxygen curtain 504 is opened, it is suspended at the mouth and nose of the operator, and the oxygen from the oxygen source 501 is provided to the operator through the oxygen outlet channel. The oxygen supply time of the oxygen source 501 is not less than 2 minutes, and the oxygen outlet pressure shall not be less than 0.1MPa;

[0038] The power supply component 6 is installed on the brim 103 on the other side of the shell 101 . The power supply component 6 is matched with the shape of the fitting part between the shell 101 and the brim 103 . The width of the power supply component 6 does not exceed the width of the brim 103 .

[0039] In summary, the technical solution of the present invention solves the following technical problems: when a worker mistakenly enters a gas accumulation area, the gas monitoring and alarm component 3 on the helmet body 1 can promptly issue an alarm to remind the worker, and can instantly control the oxygen supply component 5 to provide oxygen to the worker; or when a coal and gas outburst or gas explosion occurs, the pressure monitoring component 2 on the helmet body 1 can promptly sense the sharp increase in gas concentration or the sudden change in air pressure, and instantly control the oxygen supply component 5 to provide oxygen to the worker, thereby preventing the worker from fainting and suffocating to death due to inhalation of high-concentration gas at the initial stage of distress, and improving the survival ability of the worker in a distressed environment. Since gas is lighter than air, the accumulated high-concentration gas generally accumulates from the tunnel roof downwards. The gas monitoring and alarm component 3 installed on the helmet body 1 of the present invention can provide warnings earlier than the gas monitoring device previously worn on the waist, thereby preventing the worker from accidentally inhaling gas.

[0040] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims

1. A mining helmet with active protection function, characterized in that: It includes a safety helmet body, a pressure monitoring component, a gas monitoring and alarm component, a control component, an oxygen supply component, a power supply component, a signal transmission line, and an electric wire; the pressure monitoring component, the gas monitoring and alarm component, the control component, the oxygen supply component, and the power supply component are respectively arranged on the safety helmet body in different areas that do not affect wearing; the pressure monitoring component, the gas monitoring and alarm component, the control component, the oxygen supply component, and the power supply component are respectively connected to the helmet body; the pressure monitoring component, the gas monitoring and alarm component, the control component, and the oxygen supply component are respectively connected to the power supply component through electric wires; the pressure monitoring component, the gas monitoring and alarm component, and the oxygen supply component are respectively connected to the control component through signal transmission lines.

2. A mining helmet with active protection function according to claim 1, characterized in that: The helmet body includes a shell, a visor, a brim, and a top rib. The shell is provided with a lamp holder for placing a mining lamp, the brim is provided with mounting holes, and both the brim and the visor are provided with part fixing screws; the part fixing screws are used for connecting the pressure monitoring component, the gas monitoring and alarm component, the control component, the oxygen supply component, the power supply component to the brim and the visor, and the mounting holes are used as channels for signal transmission lines and electrical wires.

3. A mining helmet with active protection function according to claim 2, characterized in that: The pressure monitoring component is installed on the brim below the lamp holder directly in front of the shell. The pressure monitoring component includes an ambient gas pressure sensor, a component shell, and a shell air vent. The ambient gas pressure sensor is arranged in the component shell; a plurality of shell air vents are arranged on the component shell to facilitate the entry of ambient air into the pressure monitoring component. The ambient gas pressure sensor collects the numerical value of the gas pressure in the air in real time.

4. A mining helmet with active protection function according to claim 3, characterized in that: The gas monitoring and alarm component is installed on the brim of the shell side. The gas monitoring and alarm component includes a gas sensor, an audible and visual alarm, a component shell, and a gas channel. The gas sensor and the audible and visual alarm are arranged in the component shell; the component shell is matched with the outer shape of the fitting part between the shell and the brim, and the width of the component shell does not exceed the width of the brim; a number of gas channels are arranged on the component shell to facilitate the entry of ambient air into the gas monitoring and alarm component, and the gas sensor collects the concentration of gas in the air in the head area in real time.

5. A mining helmet with active protection function according to claim 4, characterized in that: The oxygen supply assembly is installed under the visor, and the oxygen supply assembly includes an oxygen source, an oxygen source switch control valve, an air pipe, an oxygen curtain, and an oxygen curtain opening control valve. The oxygen source is connected to the oxygen curtain through the air pipe, and the oxygen curtain is provided with an oxygen outlet channel; the oxygen source is provided with an oxygen source switch control valve for controlling the oxygen supply to the oxygen curtain, and the oxygen curtain is provided with an oxygen curtain opening control valve for controlling the oxygen supply to the operator; after the oxygen curtain is opened, it is suspended at the mouth and nose of the operator, and the oxygen from the oxygen source is provided to the operator through the oxygen outlet channel.

6. A mining helmet with active protection function according to claim 5, characterized in that: When the air pressure value reaches 0.2MPa, the ambient gas pressure sensor transmits the signal to the control component through the signal transmission line. The control component issues an oxygen supply command to the oxygen supply component. The oxygen curtain falls to cover the mouth and nose area. The oxygen source continuously transmits oxygen to the oxygen curtain through the trachea to supply oxygen to the operators.

7. The mining helmet with active protection function according to claim 5, characterized in that: When the gas concentration in the ambient air reaches 1%, the gas sensor transmits the signal to the sound and light alarm and the control component through the signal transmission line. The sound and light alarm is activated, and at the same time, the control component issues an oxygen supply command to the oxygen supply component. The oxygen curtain falls to cover the mouth and nose area, and the oxygen source continuously transmits oxygen to the oxygen curtain through the trachea to supply oxygen to the operators.

8. The mining helmet with active protection function according to claim 2 is characterized in that: The power supply component is installed on the brim on the other side of the shell. The power supply component is matched with the shape of the fitting part between the shell and the brim. The width of the power supply component does not exceed the width of the brim.

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