Protective helmet device for coal mine

Abstract

The utility model provides a protective helmet device for a coal mine. The protective helmet device comprises a first adjusting valve, a filtering structure, an air supply hose and a helmet structure. According to the scheme, the filtering structure can filter dust in air supplied by an underground compressed air system, it is guaranteed that operators breathe clean air, and breathing safety of the operators can also be guaranteed. The air outlet channel in the helmet structure is arranged around the top of the helmet body and is provided with a plurality of air outlets, and each air outlet is communicated with the cavity in the helmet structure, so that air can be uniformly supplied into the helmet body, fresh air can be supplied to a person wearing the helmet structure, and the comfort of the person wearing the helmet structure is improved. And the first adjusting valve is connected with the pipeline of the underground compressed air system, the underground compressed air system is used as an air source, continuous, stable and high-pressure air can be provided, and the first adjusting valve can adjust the air flow connected to the underground compressed air system so as to adapt to the breathing requirements and environmental conditions of different operators.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine production protection equipment, in particular to a protective helmet device for coal mines. Background Art

[0002] Mining operations generate large amounts of dust, which can harm workers. Long-term exposure to dust can lead to occupational diseases such as pneumoconiosis. Mining operations also produce toxic and hazardous gases, such as methane, carbon monoxide, and sulfides, which can cause poisoning and suffocation.

[0003] Currently, common dust removal and protection measures include using a spray from the tunnel boring machine's cutting head, using dust removal fans, using tunnel dust spray, and wearing dust masks. However, these measures cannot completely isolate dust; some dust can still be inhaled into the lungs through the dust mask's filter cotton (filter cartridge). Furthermore, to ensure effective dust filtration, the dust mask's filter cotton (filter cartridge) has a low air flow rate, resulting in insufficient air supply. This reduces the worker's breathing capacity, impairs breathing capacity, and increases the burden on the lungs and heart. In the event of poisoning or suffocation, workers must promptly wear a chemical or compressed oxygen self-rescuer. However, these devices are only effective for 30 to 45 minutes, and if they cannot be removed, they can easily cause casualties. Utility Model Content

[0004] The utility model provides a protective helmet device for coal mines, which solves the problems of insufficient air supply and easy inhalation of toxic and harmful gases in the prior art.

[0005] In order to solve the above problems, the utility model provides a protective helmet device for coal mines, including a first regulating valve, a filter structure, an air supply hose and a helmet structure. The first regulating valve is connected to the pipeline of the underground compressed air system, one end of the filter structure is connected to the outlet of the first regulating valve, and the other end of the filter structure is connected to the air supply hose. The air supply hose and the helmet structure are detachably connected. An air outlet channel is provided in the helmet structure, and the air outlet channel is arranged around the top of the helmet structure. A plurality of air outlets are arranged at intervals on the air outlet channel, and each of the air outlets is connected to the cavity in the helmet structure to supply fresh air to the person wearing the helmet structure.

[0006] Furthermore, a plurality of three-way valves are arranged at intervals on the air supply hose, each of the three-way valves has an openable and closable external interface, and the helmet structure can be connected to any one of the external interfaces.

[0007] Furthermore, the helmet structure includes a helmet body and a ventilation hose, one end of the ventilation hose is connected to the inlet of the air outlet channel, and the other end of the ventilation hose is detachably connected to the three-way valve.

[0008] Furthermore, the external interface of the three-way valve is provided with a first connector, and the other end of the ventilation hose is provided with a second connector, and the first connector and the second connector are detachably connected.

[0009] Furthermore, the first connector and the second connector are connected in a plug-in manner, and when the first connector and the second connector are separated, the first connector is closed.

[0010] Furthermore, the helmet structure also includes a second regulating valve, which is arranged on the ventilation hose, and the opening size of the second regulating valve is adjustable.

[0011] Furthermore, the protective helmet device for coal mines also includes a pressure gauge, which is installed on the air supply hose or the ventilation hose.

[0012] Furthermore, the protective helmet device for coal mines also includes a plurality of brackets, and the plurality of brackets are installed on the side wall of the mine or the hydraulic support, and the plurality of brackets are used to support the air supply hose.

[0013] Furthermore, the helmet structure includes a helmet body and a transparent protective eye mask, the protective eye mask covers the opening on the front side of the helmet body, and the air outlet channel is located inside the helmet body.

[0014] Furthermore, the helmet body has a breathing port, and the helmet structure also includes a filter, which is arranged at the breathing port. When the helmet structure is not connected to the air supply hose, the breathing port is used for breathing of the person.

[0015] The technical solution of the present utility model provides a protective helmet device for coal mines, comprising a first regulating valve, a filter structure, an air supply hose, and a helmet structure. The first regulating valve is connected to a pipeline of an underground compressed air system. One end of the filter structure is connected to the outlet of the first regulating valve, and the other end of the filter structure is connected to the air supply hose. The air supply hose and the helmet structure are detachably connected. An air outlet channel is provided within the helmet structure, the air outlet channel being arranged around the top of the helmet structure. A plurality of air outlets are spaced apart on the air outlet channel, each of which is connected to a cavity within the helmet structure to supply fresh air to the person wearing the helmet structure. In this embodiment, the filter structure can filter out dust from the air supplied from the underground compressed air system, ensuring that the worker breathes clean air and protecting the worker's breathing safety. The air outlet channel within the helmet structure is arranged around the top of the helmet body and has multiple air outlets, which can evenly supply air to the helmet body, improving the worker's comfort when wearing it. Moreover, by connecting the first regulating valve and the downhole compressed air system through a pipeline, and using the downhole compressed air system as an air source, continuous, stable, high-pressure air can be provided. The first regulating valve can also adjust the air flow connected to the downhole compressed air system to adapt to the breathing needs and environmental conditions of different operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 The figure shows a schematic structural diagram of a protective helmet device for coal mines provided by an embodiment of the present utility model;

[0018] Figure 2 A schematic structural diagram of an air supply pipeline of a protective helmet device for coal mines provided by an embodiment of the present utility model is shown;

[0019] Figure 3 The figure shows an installation diagram of a protective helmet device for coal mines provided by an embodiment of the utility model.

[0020] The above drawings include the following reference numerals:

[0021] 10. First regulating valve;

[0022] 20. Filter structure;

[0023] 30. Air supply hose;

[0024] 40. Air outlet channel; 41. Air outlet;

[0025] 50. Three-way valve;

[0026] 60. Ventilation hose;

[0027] 70. Protective eyewear;

[0028] 80. Filter;

[0029] 90. Bracket;

[0030] 100. Helmet body. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way serves as any limitation on the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figures 1 to 3 As shown, an embodiment of the present invention provides a protective helmet device for coal mines, comprising a first regulating valve 10, a filter structure 20, an air supply hose 30, and a helmet structure. The first regulating valve 10 is connected to the pipeline of the underground compressed air system. One end of the filter structure 20 is connected to the outlet of the first regulating valve 10, and the other end of the filter structure 20 is connected to the air supply hose 30. The air supply hose 30 is detachably connected to the helmet structure. An air outlet channel 40 is provided within the helmet structure. The air outlet channel 40 is arranged around the top of the helmet structure. A plurality of air outlet ports 41 are spaced apart on the air outlet channel 40. Each air outlet port 41 is connected to a cavity within the helmet structure to supply fresh air to the person wearing the helmet structure. In this embodiment, the filter structure 20 can filter out dust from the air supplied from the underground compressed air system, ensuring that workers breathe clean air and protecting their breathing safety. The helmet structure is particularly suitable for working environments with high coal dust concentrations and poor ventilation conditions. The air outlet channel 40 in the helmet structure is arranged around the top of the helmet structure and has a plurality of air outlets 41, which can evenly supply air to the helmet body 100. By directly delivering fresh air to the interior of the helmet body 100, it not only reduces the inhalation of dust particles and harmful gases, but also improves the breathing environment of the workers and increases the comfort of the workers when wearing it. Moreover, by connecting the first regulating valve 10 and the downhole compressed air system through a pipeline, the downhole compressed air system is used as an air source, which can provide continuous, stable, high-pressure air. The first regulating valve 10 can also adjust the amount of air connected to the downhole compressed air system to adapt to the breathing needs and environmental conditions of different workers. Among them, the downhole compressed air system is connected to the ground to provide fresh air. The air provided by the downhole compressed air system is compressed air, which can be used to drive equipment.

[0033] The air supply hose 30 is provided with multiple three-way valves 50 at intervals, each of which has an openable and closable external port, allowing the helmet structure to connect to any of the external ports. In this embodiment, multiple three-way valves 50 are provided, allowing the operator to select the nearest three-way valve 50 to connect to the helmet body 100 based on their needs or location, ensuring that air can be supplied to the operator's range of movement. This also allows multiple operators to share the same air supply hose, reducing equipment redundancy and lowering costs. Furthermore, if a three-way valve malfunctions, the operator can quickly switch to another port, increasing the flexibility of the air supply system and reducing safety risks caused by malfunctions. This also reduces the distance that air flows in the air supply hose 30, providing fresh air to the operator more quickly and improving air supply efficiency.

[0034] like Figure 1 As shown, the helmet structure includes a helmet body 100 and a ventilation hose 60. One end of the ventilation hose 60 is connected to the inlet of the air outlet channel 40, and the other end of the ventilation hose 60 is detachably connected to the three-way valve 50. In this embodiment, the detachable connection makes the ventilation hose 60 and the three-way valve 50 more convenient to replace or maintain. In an emergency, the connection can be quickly disconnected to ensure the safety of the operator.

[0035] Furthermore, the external port of the three-way valve 50 is provided with a first connector, and the other end of the ventilation hose 60 is provided with a second connector, and the first connector and the second connector are detachably connected. In this embodiment, the detachable connection between the first connector and the second connector facilitates maintenance and cleaning of the ventilation hose 60 and the three-way valve 50, helping to maintain good performance. If the ventilation hose 60 or the connector is damaged, only the damaged part needs to be replaced, reducing maintenance costs. In an emergency, the connector can be quickly disconnected to quickly cut off the gas supply and reduce safety risks.

[0036] The first and second connectors are connected using a plug-in connection. When the first and second connectors are separated, the first connector closes. In this embodiment, when the first and second connectors are separated, the first connector automatically closes, eliminating the need for manual closure by operators. This simplifies the process, effectively prevents gas leakage, ensures the stability and safety of the underground compressed air system, and reduces environmental pollution. The plug-in connection and disconnection operations are simple and quick, improving response speed in emergency situations.

[0037] Furthermore, the helmet structure includes a second regulating valve, which is mounted on the ventilation hose 60 and has an adjustable opening. In this embodiment, the second regulating valve is mounted on the ventilation hose 60 and its adjustable opening allows the operator to adjust the air supply according to their needs. The second regulating valve precisely controls the airflow, helping to maintain a stable airflow and avoid discomfort caused by unstable airflow. In an emergency, the operator can quickly adjust or close the second regulating valve to prevent the continued inhalation of toxic and harmful gases remaining in the air supply hose 30, thereby ensuring the operator's safety.

[0038] The coal mine protective helmet device also includes a pressure gauge mounted on the air supply hose 30 or the ventilation hose 60. In this embodiment, the pressure gauge displays the current air pressure within the helmet body 100 in real time, allowing operators to understand the current status at all times and promptly detect anomalies, such as excessively high or low pressure, thereby adjusting the second regulating valve to prevent safety accidents. Furthermore, the pressure gauge serves as an important reference during maintenance and repair, helping technicians determine whether there are any problems with the air supply system.

[0039] like Figure 3 As shown, the protective helmet device for coal mines further includes a plurality of brackets 90, which are mounted on the sidewalls or hydraulic supports of the mine and are used to support the air supply hose 30. In this embodiment, the brackets 90 can effectively secure the air supply hose 30, preventing displacement or damage to the air supply hose 30 due to pulling or accidental collisions. They also help plan and optimize the layout of the air supply hose 30, avoiding a disorderly arrangement of the air supply hose 30 and ensuring that the air supply hose 30 does not obstruct the movement path of miners, thereby improving access and operating efficiency within the mine and reducing injuries to workers caused by tripping or entanglement in the air supply hose 30.

[0040] like Figure 1 As shown, the helmet structure includes a helmet body 100 and a transparent protective eye shield 70. The protective eye shield 70 covers the opening on the front side of the helmet body 100, and the air outlet channel 40 is located inside the helmet body 100. In this embodiment, the protective eye shield 70 can be opened and closed by pushing and pulling. The transparent protective eye shield 70 ensures a good field of vision, allowing the operator to maintain a clear line of sight during work and improve work efficiency. The protective eye shield 70 also effectively protects the operator's eyes from dust, rock fragments, etc., reducing damage to the eyes.

[0041] The helmet body 100 has a breathing port, and the helmet structure also includes a filter 80. The filter 80 is disposed at the breathing port and is used to allow the user to breathe when the helmet structure is not connected to the air supply hose 30. In this embodiment, the design of the breathing port and filter 80 ensures good ventilation within the helmet body 100, improving the comfort of the worker wearing the helmet structure. When the air supply hose 30 is not connected, the filter 80 can filter dust and some toxic and harmful gases from the air while ensuring an adequate air supply, ensuring that the worker can breathe normally. This also protects the worker's breathing health in the event of a malfunction or accidental disconnection of the air supply hose 30. In this embodiment, the addition of the breathing port and filter 80 makes the helmet structure suitable not only for environments requiring air supply, but also for ordinary working environments.

[0042] The protective helmet device for coal mines provided in this application effectively improves the breathing safety and comfort of underground workers by purifying the fresh air from the underground compressed air system through a filter structure 20 and then providing clean breathing air to workers through an air supply hose 30 and a helmet structure. Furthermore, by providing multiple three-way valves 50 and brackets 90, the air supply hose 30 can be flexibly arranged to adapt to different working environments, thereby enhancing the practicality and flexibility of the device. Furthermore, the provision of a second regulating valve and a pressure gauge allows workers to adjust the air intake and monitor the air supply pressure according to actual needs, ensuring the reliability and safety of the device.

[0043] The above description is merely an optional embodiment of the present invention and is not intended to limit the present invention. Persons skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of this solution. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary, rather than limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0046] In the description of this scheme, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this scheme; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0047] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0048] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this solution.

Claims

1. A protective helmet device for coal mines, characterized in that: The invention comprises a first regulating valve (10), a filter structure (20), an air supply hose (30) and a helmet structure, wherein the first regulating valve (10) is connected to a pipeline of a downhole compressed air system, one end of the filter structure (20) is connected to an outlet of the first regulating valve (10), and the other end of the filter structure (20) is connected to the air supply hose (30), and the air supply hose (30) and the helmet structure are detachably connected, an air outlet channel (40) is provided in the helmet structure, the air outlet channel (40) is provided around the top of the helmet structure, and a plurality of air outlets (41) are provided at intervals on the air outlet channel (40), and each of the air outlets (41) is communicated with a cavity in the helmet structure to supply fresh air to a person wearing the helmet structure.

2. The protective helmet device for coal mines according to claim 1, characterized in that: A plurality of three-way valves (50) are arranged at intervals on the air supply hose (30), each of the three-way valves (50) having an openable and closable external interface, and the helmet structure can be connected to any one of the external interfaces.

3. The protective helmet device for coal mines according to claim 2, characterized in that: The helmet structure comprises a helmet body (100) and a ventilation hose (60), one end of the ventilation hose (60) is connected to the inlet of the air outlet channel (40), and the other end of the ventilation hose (60) is detachably connected to the three-way valve (50).

4. The protective helmet device for coal mines according to claim 3, characterized in that: The external interface of the three-way valve (50) is provided with a first connector, and the other end of the ventilation hose (60) is provided with a second connector, and the first connector and the second connector are detachably connected.

5. The protective helmet device for coal mines according to claim 4, characterized in that: The first connector and the second connector are connected in a plug-in manner. When the first connector and the second connector are separated, the first connector is closed.

6. The protective helmet device for coal mines according to claim 3, characterized in that: The helmet structure further comprises a second regulating valve, which is arranged on the ventilation hose (60), and the opening size of the second regulating valve is adjustable.

7. The protective helmet device for coal mines according to claim 3, characterized in that: The protective helmet device for coal mines further comprises a pressure gauge, which is installed on the air supply hose (30) or the ventilation hose (60).

8. The protective helmet device for coal mines according to claim 1, characterized in that: The protective helmet device for coal mines further comprises a plurality of brackets (90), wherein the plurality of brackets (90) are installed on the side wall of the mine or a hydraulic support, and the plurality of brackets (90) are used to support the air supply hose (30).

9. The protective helmet device for coal mines according to claim 1, characterized in that: The helmet structure comprises a helmet body (100) and a transparent protective eye mask (70), wherein the protective eye mask (70) covers an opening on the front side of the helmet body (100), and the air outlet channel (40) is located inside the helmet body (100).

10. The protective helmet device for coal mines according to claim 9, characterized in that: The helmet body (100) has a breathing port, and the helmet structure further comprises a filter (80). The filter (80) is arranged at the breathing port. When the helmet structure is not connected to the air supply hose (30), the breathing port is used for breathing of a person.

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