Active air supply type mining protective helmet

Abstract

The invention relates to an active air supply type mining protective helmet which comprises a helmet main body structure (1) and a safety helmet head band (2), the safety helmet head band (2) is installed in an inner ring of the helmet main body structure (1) and fixed through a head band installation buckle in the helmet main body structure (1), and the active air supply type mining protective helmet is characterized by further comprising a head air supply pipeline (3), a mask (4) and a protective shawl (5); wherein the head air supply pipeline (3) is mounted at the top in the helmet main body structure (1), the upper edge of the mask (4) is connected with the front edge of the head air supply pipeline (3), and the upper edge of the protective shawl (5) is connected with the rear edge of the head air supply pipeline (3); the helmet has a dust protection effect, can automatically supply air to a worker to breathe after being connected with an active air supply device, and can replace a half mask worn by a miner at present.

Description

Technical Field

[0001] The present invention is an active air supply type mining protection helmet, which relates to an active air supply type mining protection helmet for underground operation of coal miners. Background Art

[0002] Coal miners are in an environment with a high dust concentration during coal mining operations. If workers are in such an environment for a long time, it is extremely harmful to the lungs and will increase the risk of suffering from pneumoconiosis. At present, underground workers only wear half masks for simple protection. However, the half mask can only cover the mouth and nose, and cannot effectively protect the face and eyes. In addition, there is a feeling of restraint on the worker's face during the wearing process of the half mask, with relatively large breathing resistance and uncomfortable wearing. Moreover, there is a risk of falling coal blocks at the coal mining face at any time. Workers also need to protect their heads when working in such an environment. At present, workers protect their heads by wearing safety helmets. Summary of the Invention

[0003] The purpose of the present invention is to provide an active air supply type mining protection helmet, which can not only protect the worker's face and head, but also actively supply air into the helmet.

[0004] An actively air-supplied mining protection helmet, comprising a helmet main body structure 1, a safety helmet headband 2. The safety helmet headband 2 is installed within the inner circle of the helmet main body structure 1 and is fixed through a headband installation buckle within the helmet main structure 1. It is characterized in that it further comprises a head air supply pipeline 3, a face shield 4 and a protection cape 5. Among them, the head air supply pipeline 3 is installed at the top within the helmet main body structure 1. The upper edge of the face shield 4 is connected to the front edge of the head air supply pipeline 3, and the upper edge of the protection cape 5 is connected to the rear edge of the head air supply pipeline 3. The helmet main body structure 1 adopts the form of a 3 / 4 helmet. The top of the helmet main body structure 1 is provided with reinforcing ribs, and the front part of the helmet main body structure 1 is designed with a miner's lamp fixing buckle. The head air supply pipeline 3 is designed in a horn shape to ensure that the air passing through the air supply pipe can evenly cover the entire face. The air outlet is designed with a wind direction adjustment structure 17. By rotating the wind direction adjustment structure 17, the wind direction can be changed. The air supply pipeline 3 closely adheres to the top contour of the helmet main structure 1. There are two fixing holes at the tail of the air supply pipeline 3, which are fixed to the corresponding threaded holes of the helmet main structure through self-tapping screws. The face shield 4 comprises a lens 12, a lens fixing frame 9, a left fixing strip 13, a right fixing strip 16, a damping rotating shaft 11, a rotating shaft seal cover 18 and a chin sealing cloth 15. Among them, the lens 12 is installed within the lens fixing frame 9, and the lens fixing frame 9 is further connected to the helmet main body structure 1. The chin sealing cloth 15 is connected below the lens 12. A left fixing strip 13 is pasted at the connection between the left side of the lens 12 and the chin sealing cloth 15, and a right fixing strip 16 is pasted at the connection between the right side of the lens 12 and the chin sealing cloth 15. Through holes are designed on both the left and right sides of the lens 12 for installing the damping rotating shaft 11. The rotating shaft seal cover 18 is installed on the damping rotating shaft 11. The rotating shaft seal cover 18 is embedded with magnets. Through the magnetic attraction between the magnets and the damping rotating shaft 11 and the installation slots on both sides of the lens fixing frame 9, the damping of the rotating shaft seal cover 18 plays a role in dust prevention and protection for the rotating shaft 11.

[0005] Furthermore, the helmet main body structure 1 is made of flame-retardant and anti-static ABS material; the protection cape 5 is made of flame-retardant and anti-static material.

[0006] Furthermore, the chin sealing cloth 15 is used to ensure the isolation of the face from external dust. The chin sealing cloth 15 adopts a one-way breathable, flame-retardant and anti-static fabric. An elastic rubber band is sewn on one side of the sealing cloth, which can tighten the chin to prevent external dust from entering; a silicone strip 14 is sewn on the other side and placed in the corresponding card slot of the lens fixing frame 9.

[0007] Furthermore, the upper part of the lens fixing frame 9 is provided with a card slot, and a top sealing silicone strip 10 is placed in the card slot. The top sealing silicone strip 10 can be in close contact with the helmet main structure 1 when the face shield 4 is closed, ensuring the sealing performance.

[0008] Furthermore, the lens 12 is made of flame-retardant and anti-static PC. The lens 12 adopts a hyperbolic design and is optimized in curve to ensure the clarity of the lens 12 and prevent the wearer from dizziness.

[0009] Furthermore, the lens 12 is designed to be larger and wider, which increases the visual range of the window; an anti-fog coating is added to the inside of the lens 12 to ensure that no fog is generated on the lens during wearing; a hardened coating is added to the inside and outside of the lens 12 to ensure the protective effect of the lens 12 on the face.

[0010] Furthermore, the lens 12 is enlarged and widened to increase the viewing range of the window. An anti-fog coating is added to the inside of the lens 12 to prevent fogging during wear. A hardened coating is added to both the inside and outside of the lens 12 to ensure that the lens 12 provides adequate protection for the face.

[0011] Furthermore, an anti-fog coating is added to the inner side of the lens 12 to ensure that no fog is generated on the lens during wear. A hardened coating is added to the inner and outer sides of the lens 12 to ensure that the lens 12 has a protective effect on the face.

[0012] Furthermore, a hardened coating is added to the inner and outer sides of the lens 12 to ensure the protective effect of the lens 12 on the face.

[0013] Beneficial effects of the present invention

[0014] The present invention relates to the field of coal mine safety. In response to the urgent need for personal protective equipment for coal miners working underground, an active air supply type mining protective helmet has been invented. The helmet can be widely used in mining and other fields with high dust concentration and high risk. There are many kinds of protective helmets on the market, but there are very few helmets that can take into account various protective functions at the same time. Therefore, it is urgent to develop an active air supply type mining protective helmet that can isolate dust, protect the workers' faces and heads, ensure breathing comfort and be comfortable to wear. After wearing the helmet, workers no longer need to wear half masks and safety helmets, which reduces the workers' workload. The present invention has the following specific benefits:

[0015] (1) The head cover of the present invention can ensure that the face is isolated from external dust by turning the mask down, ensuring that dust is not inhaled into the human lungs;

[0016] (2) The top of the hood of the present invention is designed with an air supply duct. After the hood is connected to the active air supply device, the filtered clean air can be delivered to the face through the head air supply duct for breathing. Due to the active air supply, a positive pressure environment is ensured on the face, further blocking external dust;

[0017] (3) The hood of the present invention is designed as a safety helmet. A headband meeting the safety helmet standards is selected to ensure wearing comfort and safety. Moreover, the helmet can pass the impact performance test and puncture resistance test in the safety helmet test standards. The hood is designed with ear protection and a protective cape, which also provides a certain degree of protection for the ears and shoulders of workers.

[0018] (4) All the materials selected for the hood of the present invention are flame-retardant and anti-static materials, meeting the usage requirements of underground protective equipment.

[0019] (5) The structure of the present invention is simple and comfortable to wear, and can provide protection against dust, face, head, shoulders and ears.

[0020] (6) The present invention provides a new solution for personal protective equipment underground and can replace the half-face masks and safety helmets currently worn by workers.

[0021] (7) The helmet of the present invention has the function of a safety helmet and can replace the safety helmets currently worn by workers to protect the heads of workers from injury.

[0022] (8) The helmet of the present invention has a dust protection effect. After connecting the active air supply device, it can supply air for workers to breathe independently and can replace the half-face masks currently worn by miners.

[0023] (9) The helmet of the present invention is designed with a large-area transparent face mask to protect the faces of miners from injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The front view of the present invention;

[0025] Figure 2 is Figure 1 the rear view;

[0026] Figure 3 is Figure 1 the right view;

[0027] Figure 4 is the exploded view of the present invention;

[0028] Figure 5 is the schematic diagram of the face mask structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0029] The present invention provides an active air supply type mine protection hood. The hood has a simple structure and is comfortable to wear, and can provide protection against dust, face, head, shoulders and ears. The helmet mainly consists of a helmet main body structure 1, a safety helmet headband 2, a head air supply pipeline 3, a face mask 4 and a protective cape 5.

[0030] The helmet main structure 1 is designed in accordance with the safety helmet design standards. The helmet main structure 1 adopts the form of a 3 / 4 helmet, effectively protecting the back of the neck and ears. Its material is selected as flame-retardant and anti-static ABS material, meeting the usage requirements of underground protection equipment. Reinforcing ribs are designed on its top to ensure the strength of the helmet. A miner's lamp fixing buckle is designed at its front, which can adapt to different models of miner's lamps. An air outlet is designed at the front top position inside it, and the air outlet is widened to ensure that the air blown out through the air outlet can evenly cover the entire face, so that it can not only supply normal breathing but also ensure the comfort and dryness of the face after the worker performs strenuous physical labor. Headband installation buckles are designed around the top inside it, which can adapt to most safety helmet headbands on the market. The buckles are designed as quick-release type to ensure the convenience of headband installation and disassembly. Two long holes are opened at the rear and left sides outside it, which can be used to fix the air supply hose connected to the active air supply main unit and the danger warning lamp respectively. Four long holes are designed at its bottom for fixing the protective cape. Rotating shaft fixing interfaces are also designed on both sides of the helmet main structure 1 for installing the mask rotating shaft. Two upper and lower limits are also designed on the helmet main structure to ensure that the mask 4 can freely flip between the two limits.

[0031] The safety helmet headband 2 uses a mature product on the market and is fixed through the headband installation buckle on the helmet main structure 1. The distance between the safety helmet headband 2 and the top of the helmet main structure 1 is ensured to be between 3 and 5 cm, meeting the safety helmet design standards. In order to ensure the isolation of the face from dust, a one-way breathable forehead top sealing cloth 6 made of flame-retardant and anti-static material is designed at the gap between the forehead top of the headband and the forehead top of the helmet. The forehead top sealing cloth is connected by placing a silicone strip 7 in the corresponding card slot of the helmet.

[0032] The head air supply pipeline 3 is designed in a horn shape to ensure that the air passing through the air supply pipe can evenly cover the entire face. An air direction adjustment structure 17 is designed at the air outlet, and by rotating this structure, the purpose of changing the air direction can be achieved. The air supply pipeline 3 closely adheres to the top contour of the helmet main structure 1. There are two fixing holes at the tail of the air supply pipeline 3, which are fixed to the corresponding threaded holes of the helmet main structure through self-tapping screws. There is also a structural member 8 at the rear of the helmet, and the structural member 8 is fixed to the helmet main structure through 4 self-tapping screws, further ensuring the fixing strength of the air supply pipeline 3.

[0033] The protective cape 5 is made of flame-retardant and anti-static material and can play a certain protective role in the shoulder and neck.

[0034] The mask 4 is composed of a lens 12, a lens fixing frame 9, a left fixing strip 13, a right fixing strip 16, a damping rotating shaft 11, a rotating shaft cover 18, and a chin sealing cloth 15.

[0035] The material of the lens 12 is flame-retardant and anti-static PC, meeting the usage requirements of underground protective equipment; the lens 12 adopts a hyperboloid design and has been optimized for the curvature to ensure the clarity of the lens 12 and prevent the wearer from getting dizzy; the lens 12 has been designed with an increased size and width, increasing the visible range of the viewing window; an anti-fog coating has been added to the inner side of the lens 12 to ensure that no fog is generated on the lens during wearing; hardening coatings have been added to both the inner and outer sides of the lens 12 to ensure the protective effect of the lens 12 on the face.

[0036] The lens fixing frame 9 serves to fix the lens 12 and connect it to the main structure 1 of the helmet. It is designed with fixing grooves, and the lens 12 is placed in the grooves to ensure that the lens 12 does not slide within the frame 9; through holes are designed at intervals of 90° on both its left and right sides, which can be used to connect the damping rotating shafts 11.

[0037] The left fixing strip 13 and the right fixing strip 16 are used to press the lens 12. Each of the two fixing strips is provided with 6 threaded holes, and the lens 12 is pressed tightly by screwing self-tapping screws onto the lens fixing frame 9.

[0038] The damping rotating shaft 11 is used to connect the face mask 4 to the main structure 1 of the helmet. After applying an appropriate torque, the rotating shaft 11 can rotate, ensuring the normal rotation of the face mask 4 on the main structure 1 of the helmet. The damping design ensures the stability of the face mask 4 during rotation, and the face mask 4 will not rotate when no torque is applied. Through holes are opened at intervals of 90° on the inner side of the damping rotating shaft 11, and it can be fixed to the main structure of the helmet by screwing self-tapping screws; threaded holes are opened at intervals of 90° on the outer side, and it can be connected to the lens fixing frame 9 by screws.

[0039] The chin sealing cloth 15 is used to ensure the isolation of the face from external dust. The chin sealing cloth 15 is made of a one-way breathable, flame-retardant and anti-static fabric. An elastic rubber band is sewn on one side of the sealing cloth, which can tighten the chin to prevent external dust from entering; a silicone strip 14 is sewn on the other side and placed in the corresponding card slot of the lens fixing frame 9.

[0040] The rotating shaft cover 18 is embedded with magnets. Through the magnetic attraction between the magnets and the damping rotating shaft 11 and the installation card slots on both sides of the lens fixing frame 9, the rotating shaft cover 18 can be fixed on both sides of the rotating shaft 11, playing a certain role in dust prevention and protection for the rotating shaft 11.

[0041] In addition, in order to ensure the sealing performance between the face mask 4 and the main structure 1 of the helmet when the face mask 4 is closed, a top sealing silicone strip 10 is placed in the upper card slot of the lens fixing frame 9. This silicone strip can be in close contact with the main structure 1 of the helmet when the face mask 4 is closed, ensuring the sealing performance.

[0042] 2.3 Beneficial effects brought by the technical solution of the present invention

[0043] 1) The present invention provides a new solution for personal protective equipment in mines, which can replace the half-masks and safety helmets currently worn by workers.

[0044] 2) The helmet of the present invention has the function of a safety helmet, which can replace the safety helmets currently worn by workers and protect the workers' heads from being injured.

[0045] 3) The helmet of the present invention has a dust protection effect. After connecting the active air supply device, it can supply air for the workers to breathe independently, and can replace the half-masks currently worn by miners.

[0046] 4) The helmet of the present invention is designed with a large-area transparent face shield, which can protect the miners' faces from being injured.

[0047] 3. Key points of the technical solution of the present invention

[0048] 1) The main structure of the helmet in the present invention is designed as a safety helmet, and a headband mounting buckle, a miner's lamp fixing buckle and fixing holes for other equipment to be worn on the head are integrated on the helmet.

[0049] 2) The air supply pipeline in the present invention is in a horn shape, the air supply pipeline closely follows the contour of the top of the helmet, and the end of the pipeline adopts a large-area outlet to ensure that the air passing through the air supply pipe can evenly cover the face.

[0050] 3) The helmet lens in the present invention adopts a hyperboloid design to ensure the clarity of the lens and prevent the wearer from getting dizzy; the lens is designed to be enlarged and widened to increase the visible range of the viewing window; coatings are added to the inner and outer sides of the lens to ensure the hardness of the lens and the anti-fog effect.

[0051] 4) The face shield in the present invention is connected to the main structure of the helmet through a damping rotating shaft to ensure the stability of the face shield during the flipping process.

[0052] The helmet in the present invention ensures the isolation of the face from the external dust environment by designing a forehead top sealing cloth and a chin sealing cloth.

Claims

1. An actively air-supplied mining protective helmet, comprising a helmet main body structure (1) and a safety helmet headband (2). The safety helmet headband (2) is installed within the inner circle of the helmet main body structure (1) and is fixed through a headband installation buckle within the helmet main structure (1). It is characterized in that, It also includes a head air supply pipeline (3), a face mask (4) and a protective cape (5); among them, the head air supply pipeline (3) is installed at the top inside the helmet main structure (1), the upper edge of the face mask (4) is connected to the front edge of the head air supply pipeline (3), and the upper edge of the protective cape (5) is connected to the rear edge of the head air supply pipeline (3); the helmet main structure (1) is in the form of a 3 / 4 helmet, the top of the helmet main structure (1) is provided with reinforcing ribs, and the front part of the helmet main structure (1) is designed with a miner's lamp fixing buckle; the head air supply pipeline (3) is designed in a horn shape to ensure that the air passing through the air supply pipe can evenly cover the entire face, and the air outlet is designed with a wind direction adjustment structure (17), and by rotating the wind direction adjustment structure (17), the wind direction can be changed; the air supply pipeline (3) closely adheres to the top contour of the helmet main structure (1), and there are two fixing holes at the tail of the air supply pipeline (3), which are fixed to the corresponding threaded holes of the helmet main structure through self-tapping screws; the face mask (4) includes a lens (12), a lens fixing frame (9), a left fixing strip (13), a right fixing strip (16), a damping rotating shaft (11), a rotating shaft seal cover (18) and a chin sealing cloth (15), among which, the lens (12) is installed in the lens fixing frame (9), and the lens fixing frame (9) is also connected to the helmet main structure (1); a chin sealing cloth (15) is connected below the lens (12), a left fixing strip (13) is pasted at the connection between the left side of the lens (12) and the chin sealing cloth (15), a right fixing strip (16) is pasted at the connection between the right side of the lens (12) and the chin sealing cloth (15), through holes are designed on both the left and right sides of the lens (12) for installing the damping rotating shaft (11), and the rotating shaft seal cover (18) is installed on the damping rotating shaft (11), and the rotating shaft seal cover (18) is embedded with magnets. Through the magnetic attraction between the magnets and the damping rotating shaft (11) and the installation slots on both sides of the lens fixing frame (9), the damping of the rotating shaft seal cover (18) plays a role in dust prevention and protection for the rotating shaft (11).

2. The active air supply type mine protection helmet according to claim 1, characterized in that, The helmet main structure (1) is made of flame-retardant and anti-static ABS material; the protective cape (5) is made of flame-retardant and anti-static material.

3. The active air supply type mine protection helmet according to claim 1 or 2, characterized in that, The chin sealing cloth (15) is used to ensure the isolation of the face from external dust. The chin sealing cloth (15) is made of a one-way breathable, flame-retardant and anti-static fabric; an elastic rubber band is sewn on one side of the sealing cloth, which can tighten the chin to prevent external dust from entering; a silicone strip (14) is sewn on the other side and placed in the corresponding slot of the lens fixing frame (9).

4. The active air supply type mining protective helmet according to claim 1 or 2, characterized in that, The upper part of the lens fixing frame (9) is provided with a slot, and a top sealing silicone strip (10) is placed in the slot. The top sealing silicone strip (10) can be in close contact with the helmet main structure (1) when the face mask (4) is closed, ensuring the sealing performance.

5. The active air supply type mining protective helmet according to claim 1 or 2, characterized in that, The material of the lens (12) is flame-retardant and anti-static PC. The lens (12) adopts a double-curved surface design and the curved surface is optimized to ensure the clarity of the lens (12) and prevent the wearer from getting dizzy.

6. The active air supply type mining protection helmet according to claim 5, characterized in that, The lens (12) is designed with an enlarged and widened size, increasing the visible range of the viewing window.

7. The active air supply type mining protective helmet according to claim 6, wherein, An anti-fog coating is added inside the lens (12) to ensure that no fog is generated on the lens during wearing.

8. The active air supply type mining protection helmet according to claim 1, characterized in that, Hardening coatings are added to both the inner and outer sides of the lens (12) to ensure the protective effect of the lens (12) on the face.

9. The active air supply type mining protective helmet according to claim 1, characterized in that The damping rotating shaft (11) is used to connect the face shield (4) and the helmet main body structure (1). After applying an appropriate torque, the rotating shaft 11 can rotate to ensure the normal rotation of the face shield (4) on the helmet main body structure (1). The damping design ensures the stability of the face shield (4) during rotation, and the face shield (4) will not rotate when no torque is applied. Through holes are opened every 90° on the inner side of the damping rotating shaft (11), and it can be tightly fixed to the helmet main body structure by self-tapping screws; threaded holes are opened every 90° on the outer side, and it can be connected to the lens fixing frame (9) by screws.

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