Emergency equipment for mine construction

Abstract

The utility model discloses a kind of emergency equipment for mine construction, it is related to personal safety protection equipment technical field, the equipment includes face guard, air cavity being communicated with face guard and filter cavity being communicated with air cavity, filter cavity outside is rotatably connected with sealing ring, internally fixed with the built-in sealing ring of through-hole, rotating sealing ring can make the sealing plate of its inner wall close or open the through-hole of built-in sealing ring, to isolate or connect filter cavity and external air, air cavity is also provided with the gas supply interface of connecting gas cylinder. The utility model solves the problem that the existing protection equipment is single in function and cannot cope with sudden danger, by setting rotatable sealing switching mechanism, the rapid switching of two modes of filtering and gas supply on the same equipment is realized, and the structure is simple and reliable, emergency response is rapid, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of personal safety protection equipment technology, and in particular to an emergency equipment for mine construction. Background Technology

[0002] Mining is a high-risk working environment where large amounts of rock dust and mineral particles are constantly suspended in the air, which are major causes of occupational diseases such as pneumoconiosis. To protect the respiratory health of workers, they typically wear filtering respiratory protective equipment, such as dust masks or gas masks, during daily operations. These devices use built-in filter elements to filter outside air, removing harmful particles or certain toxic gases to provide users with relatively clean air.

[0003] However, the underground environment in mines is complex and changeable. In addition to the usual dust hazards, there are also sudden and fatal safety risks such as gas outbursts, water inrushes, fires, and oxygen deficiency. In these extreme emergency situations, the composition of the ambient air can change drastically, potentially becoming toxic, harmful, or even completely oxygen-deficient in an instant. At this time, breathing equipment based on filtration principles becomes completely ineffective and cannot provide any effective respiratory protection for the user. For such emergencies, the existing solution is to equip workers with additional self-contained breathing equipment, such as compressed oxygen self-rescuers or chemical oxygen self-rescuers. These devices can provide an independent breathing air source isolated from the external environment. However, this means that workers need to carry or store two different types of breathing protective equipment nearby.

[0004] This separate protection scheme poses a serious safety hazard: when a disaster suddenly occurs, staff must quickly remove their daily filter masks in an extremely tense and chaotic environment, and then find and correctly put on emergency self-rescue devices. This switching process not only wastes precious time that is crucial to life and death, but any operational error may also lead to catastrophic consequences.

[0005] Therefore, this utility model proposes an emergency equipment for mine construction to address the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems that existing respiratory protective equipment for mine construction has limited protective functions and cannot effectively integrate daily filtering protection with isolation-type air supply protection in case of sudden danger, resulting in slow response, cumbersome switching operations and huge safety hazards in emergency situations, this utility model aims to provide an emergency equipment for mine construction with an improved structure that can quickly switch between two protection modes.

[0007] This utility model provides an emergency equipment for mine construction, including: a mask, an air chamber fixedly connected to the front of the mask, and a filter chamber detachably connected to one side of the air chamber. The air chamber is connected to the inside of the mask through an air hole with a one-way air inlet valve. It also includes a sealing ring disposed on the outside of the filter chamber and an internal sealing ring fixed inside the filter chamber.

[0008] The built-in sealing ring has an annular structure with multiple through holes evenly distributed on it; the inner wall of the sealing ring is provided with a sealing plate corresponding to the through holes.

[0009] Furthermore, the sealing ring is rotatably connected to the outside of the filter chamber, and the built-in sealing ring is fixed inside the filter chamber and cooperates with the sealing ring. By rotating the sealing ring, the sealing plate on its inner wall can selectively cover and close or open the through hole on the built-in sealing ring; the gas chamber is also provided with a gas supply interface for connecting a gas cylinder.

[0010] Preferably, the emergency equipment for mine construction also includes an inner liner fixed inside the mask, and a one-way vent valve is provided on the outer wall of the inner liner.

[0011] Preferably, the filter chamber is further provided with a filter screen, which is disposed between the built-in sealing ring and the air chamber.

[0012] Preferably, the emergency equipment for mine construction also includes a strap connected to the edge of the mask.

[0013] Preferably, the strap is slidably provided with an adjustment loop for adjusting its length.

[0014] Preferably, the strap is detachably connected to the mask via a buckle.

[0015] Preferably, there are two filter chambers, which are symmetrically connected to the left and right sides of the air chamber.

[0016] Preferably, the gas supply interface is a threaded interface, used for a detachable threaded connection with the gas cylinder.

[0017] This utility model has the following beneficial effects: 1. This utility model, by setting a sealing ring that can rotate outside the filter chamber to cooperate with the built-in sealing ring with through holes inside the filter chamber, and by setting an independent external gas cylinder interface, solves the problem that the existing mine breathing protection equipment has a single function and cannot simultaneously meet the needs of conventional filtration protection and emergency isolation gas supply protection. It achieves the technical effect of quickly switching between two working modes on the same equipment and improving the adaptability of the equipment to complex and dangerous environments.

[0018] 2. This utility model, by adopting a purely mechanical switching structure that uses a manually rotated sealing ring to open and close the gas channel, solves the problems of complex switching processes, slow response, or insufficient reliability due to reliance on complex components in the existing technology when dealing with emergencies. It achieves the technical effect of simple and intuitive mode switching operation, rapid response, and stable and reliable structure, which can win valuable safety protection time for users in critical moments.

[0019] 3. This utility model constructs a one-way circulation loop for breathing airflow by setting up independent one-way inlet valves and one-way outlet valves, which solves the problems of cross-interference between inhalation and exhalation airflow and contamination of filter elements by exhaled moisture in traditional respirators. It achieves the technical effects of clear breathing airflow, effective prevention of waste gas backflow, extension of filter component service life and improvement of breathing comfort. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an emergency equipment for mine construction proposed in this utility model; Figure 2 This is a schematic diagram of the inner liner of an emergency equipment for mine construction proposed in this utility model; Figure 3 This is a schematic diagram of the air chamber structure of an emergency equipment for mine construction proposed in this utility model; Figure 4 This is a schematic diagram of the structure of the filter chamber of an emergency equipment for mine construction proposed in this utility model; Figure 5 This is a schematic diagram of the structure of a one-way air inlet valve for emergency equipment used in mine construction, as proposed in this utility model.

[0021] Legend: 1. Face mask; 2. Straps; 3. Adjustable straps; 4. Buckles; 5. Air chamber; 6. Filter chamber; 7. Gas cylinder; 8. Sealing ring; 9. Inner liner; 10. One-way exhaust valve; 11. One-way intake valve; 12. Built-in sealing ring; 13. Filter screen; 14. Air vents. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 5This utility model provides an emergency equipment for mine construction, which aims to solve the problem that the existing respiratory protection equipment has a single function and cannot quickly switch between filtration protection and external air supply protection.

[0024] like Figure 1 , Figure 2 and Figure 5 As shown, the emergency equipment for mine construction includes a mask 1. The mask 1 is used to fit the user's face to form a sealed breathing space. An inner liner 9 is fixed inside the mask 1. A one-way vent valve 10 is provided on the outer wall of the inner liner 9. The edge of the mask 1 is detachably connected to a strap 2 by a buckle 4. An adjustment ring 3 for adjusting its length is slidably provided on the strap 2.

[0025] like Figure 1 and Figure 4 As shown, the front of the mask 1 is fixedly connected to an air chamber 5. The air chamber 5 serves as a channel hub for gas filtration and delivery. The air chamber 5 is connected to the interior of the mask 1 through an air hole 14 with a one-way air inlet valve 11. The air chamber 5 is also provided with a gas supply interface for connecting the gas cylinder 7. The gas supply interface is a threaded interface for detachable threaded connection with the gas cylinder 7.

[0026] like Figure 1 , Figure 3 and Figure 4 As shown, two filter chambers 6 are symmetrically and detachably connected to the left and right sides of the air chamber 5. The interior of each filter chamber 6 is connected to the air chamber 5. A sealing ring 8 is rotatably connected to the outside of the filter chamber 6. An internal sealing ring 12 that cooperates with the sealing ring 8 is fixed inside the filter chamber 6. The internal sealing ring 12 has an annular structure with multiple through holes evenly distributed on it. A sealing plate corresponding to the through holes on the internal sealing ring 12 is provided on the inner wall of the sealing ring 8. By rotating the sealing ring 8, the sealing plate can selectively close or open the through holes on the internal sealing ring 12, thereby isolating or connecting the filter chamber 6 with the outside air. A filter screen 13 is also provided inside the filter chamber 6, and the filter screen 13 is located between the internal sealing ring 12 and the air chamber 5.

[0027] To solve the above-mentioned technical problems, the emergency equipment for mine construction forms a sealing switching mechanism that can quickly switch gas channels by using a sealing ring 8 and an internal sealing ring 12 set on the filter chamber 6. Furthermore, this sealing switching mechanism cooperates with the air supply interface on the air chamber 5 to form a dual-mode breathing protection system that can switch between filtration mode and air supply mode.

[0028] Please refer to Figure 3 The filter chamber 6 has a built-in sealing ring 12 fixed inside. The built-in sealing ring 12 has a ring structure with multiple through holes evenly opened on it. These through holes serve as channels for external air to flow in during the filtration mode.

[0029] A sealing ring 8 is rotatably connected to the outer side of the filter chamber 6, and a sealing plate corresponding to the through hole on the inner wall of the sealing ring 8 is provided.

[0030] When assembled, if it is necessary to filter external air, rotate the sealing ring 8 to make the sealing plate on its inner wall misalign with the through hole on the built-in sealing ring 12. At this time, the through hole is fully open, and external air can smoothly enter the filter chamber 6 through the through hole.

[0031] When it is necessary to switch to the emergency gas supply mode, rotate the sealing ring 8 again so that the sealing plate on its inner wall precisely covers and seals all the through holes on the built-in sealing ring 12. At this time, the filter chamber 6 is completely isolated from the external air. This rotating and cooperating structure of the sealing ring 8 and the built-in sealing ring 12 provides a fast and reliable mechanical channel switching method, ensuring that the connection with the external harmful environment can be quickly cut off in an emergency.

[0032] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, in order to achieve unidirectional circulation of respiratory airflow, please refer to... Figure 2 and Figure 5 The mask 1 has an inner liner 9 fixed inside. The inner liner 9 is used to form a breathing area isolated from the mouth and nose when in use. The outer wall of the inner liner 9 is provided with a one-way exhaust valve 10. The one-way exhaust valve 10 only allows gas to be discharged from the inside of the inner liner 9 to the outside of the mask 1. At the same time, the air chamber 5 is connected to the inside of the mask 1 through the air hole 14. The air hole 14 is provided with a one-way intake valve 11. The one-way intake valve 11 only allows gas to enter the inside of the mask 1 from the air chamber 5.

[0033] As another preferred embodiment, in order to effectively filter the incoming air, please refer to... Figure 3 The filter chamber 6 is equipped with a filter screen 13, which is located between the built-in sealing ring 12 and the air chamber 5, and is used to intercept dust and harmful particles in the air in the filtration mode.

[0034] As another preferred embodiment, for ease of wearing and securing, please refer to... Figure 1 and Figure 2 The edge of the mask 1 is connected to a strap 2, and an adjustable loop 3 is slidably provided on the strap 2. By sliding and adjusting the loop 3, the effective length of the strap 2 can be changed to suit different users. The strap 2 is detachably connected to the mask 1 by a buckle 4, which facilitates the installation and replacement of the strap 2.

[0035] As another preferred embodiment, to enhance the filtration effect and balance the weight of the equipment, please refer to... Figure 1 and Figure 4There are two filter chambers 6, which are symmetrically and detachably connected to the left and right sides of the air chamber 5.

[0036] As another preferred implementation method, to ensure the universality and reliability of the emergency gas source connection, please refer to... Figure 1 The air supply interface on the air chamber 5 is a threaded interface, which is used for detachable threaded connection with the valve outlet of the external gas cylinder 7.

[0037] The working principle of this utility model's emergency equipment for mine construction is as follows: In normal filtration mode, after the user puts on mask 1, the sealing ring 8 is in the open position, meaning that the sealing plate on its inner wall is offset from the through hole on the built-in sealing ring 12. When inhaling, a negative pressure is created inside mask 1, and outside air passes through the open through hole of the built-in sealing ring 12 and the filter screen 13 in the filter chamber 6 in sequence. After impurities are filtered, it enters the air chamber 5. The purified air pushes open the one-way inlet valve 11 and enters the inside of mask 1 through the air hole 14 for the user to breathe. When exhaling, the one-way inlet valve 11 closes, and the exhaled air pushes open the one-way outlet valve 10 on the inner liner 9 and is directly discharged into the external environment, thus forming a complete one-way breathing cycle.

[0038] In emergency gas supply mode, when encountering extreme situations such as gas leaks, the user immediately rotates the sealing ring 8 to completely cover and seal all the through holes on the built-in sealing ring 12 with its inner sealing plate, thereby quickly cutting off the passage between the filter chamber 6 and the outside harmful air. Subsequently, the external gas cylinder 7 is connected to the gas supply interface on the gas chamber 5 through its threaded interface. After opening the valve of the gas cylinder 7, the fresh air in the cylinder directly enters the gas chamber 5 and is quickly delivered to the inside of the mask 1 through the one-way air inlet valve 11 and the air hole 14, providing the user with an independent breathing air source. Through this synergistic effect of the sealing ring 8 and the built-in sealing ring 12, this utility model solves the problem that existing respiratory protection equipment cannot quickly switch between filtration and gas supply modes to deal with sudden dangers.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An emergency equipment for mine construction, comprising: Face mask (1); Air chamber (5), the air chamber (5) is fixedly connected to the front of the mask (1), and the air chamber (5) is connected to the interior of the mask (1) through an air hole (14) provided with a one-way air inlet valve (11); At least one filter chamber (6), one end of which is detachably connected to one side of the air chamber (5), and the interior of the filter chamber (6) is connected to the air chamber (5); The filter chamber (6) is characterized in that a sealing ring (8) is rotatably connected to the outside of the filter chamber (6). The filter chamber (6) is fixed with an internal sealing ring (12) that cooperates with the sealing ring (8). The internal sealing ring (12) is an annular structure with multiple through holes evenly provided on it. The inner wall of the sealing ring (8) is provided with a sealing plate corresponding to the through hole. By rotating the sealing ring (8), the sealing plate selectively closes or opens the through hole to isolate or connect the filter chamber (6) with the outside air. The air chamber (5) is also provided with an air supply interface for connecting the gas cylinder (7); The mask (1) is also fixed with an inner liner (9), and a one-way air valve (10) is provided on the outer side wall of the inner liner (9). The filter chamber (6) is further provided with a filter screen (13), which is located between the built-in sealing ring (12) and the air chamber (5); The number of filter chambers (6) is two, and they are symmetrically connected to the left and right sides of the air chamber (5); The gas supply interface is a threaded interface, which is used for detachable threaded connection with the gas cylinder (7).

2. The emergency equipment for mine construction according to claim 1, characterized in that, The edge of the mask (1) is also connected to a strap (2) for wearing and securing.

3. The emergency equipment for mine construction according to claim 2, characterized in that, The strap (2) is slidably provided with an adjustment loop (3) for adjusting its length.

4. The emergency equipment for mine construction according to claim 3, characterized in that, The strap (2) is detachably connected to the mask (1) by a buckle (4).

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