Body training mask for passively adjusting oxygen concentration in breathing air

Abstract

The invention discloses a body training mask for passively adjusting oxygen concentration in breathing air, and relates to the technical field of physical training equipment, the body training mask comprises a body training mask mechanism, the outer side of the body training mask mechanism is connected with a bandage mechanism, and one side of the body training mask mechanism is provided with a filtering mechanism. According to the body training mask, the first-layer mask body and the second-layer mask body are flexibly connected through the flexible connecting piece, folding operation can be conveniently carried out in the using process, the size of the mask can be adjusted through a folding structure, and then the oxygen concentration can be accurately adjusted and controlled according to the breathing dead space principle; after the volume of the mask is adjusted by the folding structure, low-oxygen exhaled air which is not completely exhausted in the closed space is mixed with outside fresh air in the mask to form a stable low-oxygen environment, the volume of the mask is increased by unfolding the folding structure, the breathing dead space is enlarged, and the oxygen concentration is reduced; the contraction folding structure reduces the size, the breathing dead space becomes small, and the oxygen concentration is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sports training equipment, in particular to a body training mask for passively adjusting oxygen concentration in breathing gas. BACKGROUND

[0002] In sports training, the oxygen concentration in breathing gas can be adjusted to simulate a high-altitude training environment, effectively improving the cardiopulmonary function and fatigue resistance of athletes, so that body training masks with adjustable oxygen concentration have been widely used.

[0003] In the prior art, such as patent application No. CN201820483112.0 "aviation professional sports training oxygen mask", including mask shell, fixed headband, loudspeaker and ultrafine atomizing nozzle, the opposite sides of the mask shell are fixedly connected with the fixed headband, one end of the mask shell is provided with a spring clamping piece, an oxygen inlet chamber is arranged on the mask shell, the oxygen outlet of the oxygen inlet chamber is communicated with the mask shell, one end of the oxygen inlet chamber is provided with an oxygen inlet, the oxygen inlet is detachably connected with an oxygen inlet pipe, one end of the oxygen inlet pipe is connected with an oxygen storage bag, the inside of the mask shell is fixedly installed with a battery compartment, a loudspeaker and a water storage tank, the utility model improves the smooth degree of communication between the wearer and the external personnel, understands the demand of the wearer in time, and the installed water storage tank and ultrafine atomizing nozzle can atomize and humidify the face of the wearer, accelerate the recovery speed of the sports training personnel after excessive training, and effectively improve the safety of aviation professional sports training students.

[0004] In the low-oxygen training scheme, part of the low-oxygen mask depends on the components such as gas cylinder, valve and sensor to supply low-concentration oxygen alone, which has the problems of complex structure, inconvenience to carry and high use cost, and another part of the mask controls the oxygen concentration by adjusting the air intake, which is easy to cause the oxygen concentration to fluctuate too much due to the insufficient air intake adjustment precision, and is difficult to meet the stable training demand, aiming at the above problems, a body training mask for passively adjusting oxygen concentration in breathing gas is proposed. SUMMARY

[0005] The purpose of the present application is to provide a body training mask for passively adjusting oxygen concentration in breathing gas, to solve the problems of the prior art operation that part of the low-oxygen mask depends on the components such as gas cylinder, valve and sensor to supply low-concentration oxygen alone, which has the problems of complex structure, inconvenience to carry and high use cost, and another part of the mask controls the oxygen concentration by adjusting the air intake, which is easy to cause the oxygen concentration to fluctuate too much due to the insufficient air intake adjustment precision, and is difficult to meet the stable training demand.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a training mask for passively regulating the oxygen concentration in breathing air, comprising a training mask mechanism, a strap mechanism connected to the outer side of the training mask mechanism, a filter mechanism provided on one side of the training mask mechanism, an air duct connected to the side of the filter mechanism, the training mask mechanism comprising a first layer mask, a flexible connector connected to one side of the first layer mask, a second layer mask connected to the side of the flexible connector, a plurality of first air vents uniformly penetrating one side of the second layer mask, the filter mechanism comprising a filter connecting cover, a cover plate provided on one side of the filter connecting cover, and a connector fixedly connected to one side of the cover plate;

[0007] The ventilation duct includes a connecting sleeve, one end of which is fixedly connected to a telescopic hose, and one end of which is fixedly connected to an air intake hood. An air intake plate is fixedly installed on the inner side of the air intake hood, and an air inlet is connected to the bottom of the air intake plate. An inner buckle is fixedly connected to the inner side of the air intake hood, and a rotating air intake plate is rotatably connected to the bottom of the air intake hood. Several air intake holes of different diameters are evenly distributed along the circumference of the rotating air intake plate.

[0008] Preferably, a non-woven filter element is provided on the inner side of the filter connecting cover, a hanging seat is fixedly installed on the upper and lower inner walls of the filter connecting cover, and sliding rails are symmetrically installed on the upper and lower inner walls of the filter connecting cover.

[0009] Preferably, a sliding adjustment block is slidably connected to the inner side of the sliding rail seat, and an insert pin is fixedly connected to the sliding adjustment block. One end of the insert pin is connected to a spring pusher, and the insert pin passes through the non-woven filter element and the inner side of the non-woven filter element.

[0010] Preferably, a rotating seat is symmetrically installed on one side of the cover plate, a limiting clamp is rotatably connected to the inner side of the rotating seat, a diagonal brace spring is rotatably connected to one side of the limiting clamp, one end of each diagonal brace spring is rotatably connected to the side of the cover plate, and a limiting protrusion is provided at one end of the limiting clamp.

[0011] Preferably, a plurality of positioning fasteners are evenly distributed along the circumferential direction on one side of the cover plate, and a positioning protrusion ring is fixedly installed on the outer side of the docking sleeve, with each positioning fastener being fastened to the outer wall of the positioning protrusion ring.

[0012] Preferably, the strapping mechanism includes two elastic straps, and mounting rings are symmetrically fixedly installed on both sides of the face mask. Both ends of the elastic straps are wrapped and connected to the mounting rings. A flexible anti-slip strip is provided on the inner side of the elastic straps. Several second ventilation holes are evenly opened through the elastic straps and the flexible anti-slip strips.

[0013] Preferably, the outer side of one of the elastic bands is slidably connected with a sliding sleeve, one side of the sliding sleeve is fixedly connected with a connecting seat, and one side of the connecting seat is provided with a flexible filling pad.

[0014] Preferably, the top of the sliding sleeve is fixedly connected with a head band, one end of the head band is fixedly connected with a limiting block, the top of the one-layer mask is fixedly installed with a limiting seat, and the limiting block is limitingly connected to the inner side of the limiting seat.

[0015] Preferably, the side of the one-layer mask is fixedly connected with a flexible frame.

[0016] Preferably, the two sides of the filter connecting cover are provided with limiting grooves, and the limiting blocks are butted to the inner sides of the limiting grooves.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1、In the present application, the flexible connecting piece is used to flexibly connect the one-layer mask and the two-layer mask, which facilitates folding operation during use, thereby facilitating the adjustment of the mask volume through the folding structure, and further utilizing the breathing dead space principle to accurately regulate the oxygen concentration of the mask for body training, which becomes the key to improving the convenience and adaptability of low-oxygen training. After the folding structure adjusts the mask volume, the low-oxygen exhaled gas not completely discharged in the closed space and the fresh air outside are mixed in the mask to form a stable low-oxygen environment. Expanding the folding structure increases the mask volume, the breathing dead space becomes larger, the oxygen concentration decreases, shrinking the folding structure reduces the volume, the breathing dead space becomes smaller, the oxygen concentration increases, the first air-permeable hole provides the function of ventilation to facilitate breathing, the filter connecting cover is installed with the adapter on the side of the cover plate, which facilitates the connection of the adapter sleeve and the positioning convex ring, the length of the positioning convex ring is adjusted to realize multi-gear oxygen concentration adaptation, one end of the telescopic hose is connected with the air inlet cover, the air inlet disc is arranged on the inner side of the air inlet cover and is provided with an air inlet, the inner buckle ring is used to rotatably connect and install the rotating air inlet disc, and the air inlet holes are distributed on the rotating air inlet disc to facilitate the rotation adjustment of different hole diameters and the air inlet communication, thereby realizing the adjustment of the air inlet amount, and further adjusting the oxygen concentration, the structure is simple and does not require additional power, the folding adjustment operation is convenient and rapid in response, and can adapt to the oxygen concentration demand in different training scenes.

[0019] 2、The non-woven fabric filter element is arranged on the inner side of the filter connecting cover, the hanging seat is fixedly installed on the inner wall of the non-woven fabric filter element, and the sliding rail seats are symmetrically distributed, the sliding adjusting blocks are slidably connected to the sliding rail seats, and the spring pushers on the sliding adjusting blocks are pushed towards the hanging seat in cooperation with the spring pushers, so that the plug-in pins are penetrated into the inner side of the non-woven fabric filter element and the hanging seat, the quick and convenient limiting installation is realized, the air filtering effect is provided during the breathing use of the non-woven fabric filter element, dust or small particulate matters are reduced to cause harm to the respiratory system of the body, the covering plates are installed on the side surfaces of the filter connecting cover, the limiting clamping plates are rotatably installed on the side surfaces of the covering plates through the rotating seats, the limiting clamping plates are supported by the inclined supporting spring members, the limiting protrusions are buckled on the inner sides of the limiting grooves on the two side surfaces of the filter connecting cover, effective limiting is formed, convenient installation and dismounting are provided, and therefore, the non-woven fabric filter element can be quickly replaced after a period of use, the cleanliness is maintained, and the use effect is improved.

[0020] 3、The installation ring provides a connecting position for the elastic band, the elastic band is convenient for providing the wearing effect for the user, the flexible antiskid rubber strip is arranged on the inner side of the elastic band, the comfort and stability during wearing are improved, the slipping off is prevented, the second air hole provides the air permeability effect, the comfort is further improved, the sliding sleeve is slidably connected, the installation position of the head top band is provided, the limiting block is slidably connected to the inner side of the limiting seat, the convenient dismounting effect is provided, and the stability during wearing is further improved, the connecting seat is fixedly installed on the side surface of the sliding sleeve, the flexible filling pad is installed, and the wearing comfort is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view of the body training mask for passively adjusting the oxygen concentration in breathing air according to the present application;

[0022] Figure 2 It is another angle three-dimensional structure schematic view of the body training mask for passively adjusting the oxygen concentration in breathing air according to the present application;

[0023] Figure 3 It is a partial structure schematic view of the body training mask for passively adjusting the oxygen concentration in breathing air according to the present application;

[0024] Figure 4 It is a filter mechanism cross-sectional structure schematic view of the body training mask for passively adjusting the oxygen concentration in breathing air according to the present application;

[0025] Figure 5 It is an enlarged structure schematic view of A in the present application; Figure 4

[0026] Figure 6 ​The filter mechanism of the body training mask for passively adjusting the oxygen concentration in the breathing gas is shown in the exploded view.

[0027] Figure 7 The body training mask for passively adjusting the oxygen concentration in the breathing gas is shown in the enlarged view. Figure 6

[0028] Figure 8 The ventilation pipeline structure of the body training mask for passively adjusting the oxygen concentration in the breathing gas is shown in the schematic view.

[0029] Figure 9 The ventilation pipeline structure of the body training mask for passively adjusting the oxygen concentration in the breathing gas is shown in the schematic view.

[0030] In the figure:

[0031] 1, body training mask mechanism; 101, a mask layer; 102, a flexible connecting piece; 103, a second mask layer; 104, a mounting ring; 105, a flexible frame; 106, a limiting seat; 107, a first air hole; 2, a binding belt mechanism; 201, an elastic binding belt; 202, a flexible anti-skid rubber strip; 203, a second air hole; 204, a sliding sleeve; 205, a connecting seat; 206, a flexible filling pad; 207, a head binding belt; 208, a limiting block; 3, a filter mechanism; 301, a filter connecting cover; 302, a non-woven fabric filter core; 303, a hanging seat; 304, a sliding rail seat; 305, a sliding adjusting block; 306, an inserted pin; 307, a spring pushing piece; 308, a cover plate; 309, a rotating seat; 310, a limiting clamping plate; 311, an inclined support spring piece; 312, a limiting protruding block; 313, a butt joint; 314, a positioning buckle; 4, a ventilation pipeline; 401, a butt joint sleeve; 402, a positioning protruding ring; 403, an elastic hose; 404, an air inlet cover; 405, an air inlet disc; 406, an air inlet; 407, an inner buckle ring; 408, a rotating air inlet disc; 409, an air inlet hole. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Embodiment 1: as Figures 1-9 ​As shown, the present application provides a technical solution: a passive regulation of oxygen concentration in respiratory gas body training mask, including body training mask mechanism 1, the outer side of body training mask mechanism 1 is connected with bandage mechanism 2, one side of body training mask mechanism 1 is provided with filter mechanism 3, the side of filter mechanism 3 is connected with ventilation pipeline 4, body training mask mechanism 1 includes a layer of mask 101, one side of a layer of mask 101 is connected with flexible connecting piece 102, the side of flexible connecting piece 102 is connected with two layers of mask 103, a plurality of first air holes 107 are uniformly provided in one side of two layers of mask 103, filter mechanism 3 includes filter connecting cover 301, one side of filter connecting cover 301 is provided with cover plate 308, one side of cover plate 308 is fixedly connected with butt joint 313;

[0034] Ventilation pipeline 4 includes butt joint sleeve 401, one end of butt joint sleeve 401 is fixedly connected with flexible hose 403, one end of flexible hose 403 is fixedly connected with air inlet cover 404, air inlet disc 405 is fixedly installed in the inner side of air inlet cover 404, air inlet 406 is connected to the bottom of air inlet disc 405, inner buckle ring 407 is fixedly connected to the inner side of air inlet cover 404, rotary air inlet disc 408 is rotationally connected to the bottom of air inlet cover 404, a plurality of air inlet holes 409 with different diameters are uniformly distributed on rotary air inlet disc 408 in circumferential direction.

[0035] In the embodiment, the flexible connection between the first layer mask 101 and the second layer mask 103 through the flexible connecting piece 102 is convenient for folding operation in the process of use, so as to facilitate the adjustment of the mask volume through the folding structure, and further utilize the respiratory dead space principle to accurately control the oxygen concentration of the body training mask, which is the key to improve the convenience and adaptability of hypoxic training. After the folding structure adjusts the mask volume, the low-oxygen exhaled gas not completely discharged in the closed space mixes with the fresh air outside the mask to form a stable low-oxygen environment. Expanding the folding structure increases the mask volume, the respiratory dead space becomes larger, the oxygen concentration decreases, and shrinking the folding structure reduces the volume, the respiratory dead space becomes smaller, and the oxygen concentration increases. The first air hole 107 provides the function of ventilation to facilitate breathing. The butt joint 313 is installed on the side of the filter connecting cover 301 with the cooperation of the cover plate 308, which is convenient for connecting the butt joint sleeve 401 and the positioning convex ring 402. By adjusting the length of the positioning convex ring 402, multi-gear oxygen concentration adaptation is realized. One end of the flexible hose 403 is connected with the air inlet cover 404, the air inlet disc 405 is provided in the inner side of the air inlet cover 404 and the air inlet 406 is provided, the rotary air inlet disc 408 is installed by the inner buckle ring 407, and the air inlet holes 409 are distributed on the rotary air inlet disc 408 to facilitate the rotation adjustment of different diameters and the communication with the air inlet 406, so as to realize the adjustment of the air inlet amount, thereby facilitating the further adjustment of the oxygen concentration. The structure is simple and does not need additional power, the folding adjustment operation is convenient and rapid in response, and can adapt to the oxygen concentration demand in different training scenes.

[0036] Embodiment 2: As shown in Figures 4-8 The inner side of the filter connecting cover 301 is provided with a non-woven fabric filter core 302, the inner wall of the filter connecting cover 301 is fixedly installed with a hanging seat 303 upwards and downwards, the inner wall of the filter connecting cover 301 is symmetrically installed with a sliding rail seat 304 upwards and downwards, the inner side of the sliding rail seat 304 is slidably connected with a sliding adjusting block 305, the sliding adjusting block 305 is fixedly connected with a plug-in pin 306, one end of the plug-in pin 306 is connected with a spring pushing piece 307, the plug-in pin 306 penetrates the non-woven fabric filter core 302 and the inner side of the non-woven fabric filter core 302, one side of the cover plate 308 is symmetrically installed with a rotating seat 309, the inner side of the rotating seat 309 is rotatably connected with a limiting clamping plate 310, one side of the limiting clamping plate 310 is rotatably connected with an inclined support spring piece 311, one end of the inclined support spring piece 311 is rotatably connected with the side of the cover plate 308, one end of the limiting clamping plate 310 is provided with a limiting protrusion 312, one side of the cover plate 308 is uniformly distributed with a plurality of positioning buckle members 314 in the circumferential direction, the outer side of the butt joint sleeve 401 is fixedly installed with a positioning convex ring 402, the positioning buckle members 314 are all buckled and connected to the outer wall of the positioning convex ring 402, the two sides of the filter connecting cover 301 are provided with limiting grooves, and the limiting protrusions 312 are butted to the inner side of the limiting grooves.

[0037] In this embodiment, in the air filter assembly, the core filter component is a non-woven fabric filter core 302 which is designed to be installed in a built-in manner and is accurately arranged in the inner cavity of the filter connecting cover 301. This assembly method not only ensures the sealing of the filter path, but also reserves sufficient space for subsequent disassembly and assembly operations. In order to realize stable fixation and rapid positioning of the filter core, an integrated hanging seat 303 is fixedly assembled at the inner wall position of the non-woven fabric filter core 302. The hanging seat not only serves as an internal support structure of the filter core, but also undertakes the key function of connection and positioning. At the same time, in the corresponding inner side area of the filter connecting cover 301, two groups of sliding rail seats 304 with consistent structure are symmetrically distributed. The sliding rail seats are designed with high-precision guidance to provide stable sliding reference for subsequent adjusting components.

[0038] Each group of sliding rail seats 304 is movably connected with an adaptive sliding adjusting block 305. The sliding adjusting block can move flexibly along the guide direction of the rail seat, and the end thereof is provided with a plug-in pin 306 for limiting fixation. Between the sliding adjusting block 305 and the inner wall of the filter connecting cover 301, a spring pushing piece 307 in a pre-compressed state is arranged. In the natural state, the spring pushing piece 307 releases the elastic potential energy and continuously pushes the sliding adjusting block 305 towards the hanging seat 303, thereby driving the plug-in pin 306 to accurately penetrate the reserved hole position of the non-woven fabric filter core 302 and further penetrate into the inner positioning hole of the hanging seat 303, forming rigid limiting at multiple points. This pure mechanical structure fastening design can complete the stable installation of the filter core without the aid of additional tools, realizing convenient and efficient assembly operation.

[0039] The non-woven fabric filter core 302 as the core filter unit has a high-density fiber structure that can form a high-efficiency air filtration barrier during breathing use, effectively intercepting dust particles, pollen, willow catkins and other small impurities in the air, significantly reducing the risk of such pollutants entering the human respiratory system, thereby reducing the occurrence of respiratory irritation, allergies and other health problems, and providing a clean and safe breathing environment for the user.

[0040] To further optimize the maintenance convenience of the assembly, a cover plate 308 is detachably installed on the side of the filter connecting cover 301, which not only protects the internal structure, but also provides a convenient access for filter core replacement. On the outer end face of the cover plate 308, a limiting clamping plate 310 is movably connected through a rotating seat 309, and the limiting clamping plate 310 can be flexibly rotated within a range of 180 degrees around the rotating seat. A diagonal support spring member 311 is arranged as an elastic support structure at the connection between the limiting clamping plate 310 and the cover plate 308. In the closed state of the cover plate 308, the diagonal support spring member 311 is in tension, and the limiting clamping plate 310 is pressed tightly towards the filter connecting cover 301 by the elastic force, so that the limiting protrusions 312 on the inner side of the limiting clamping plate 310 are precisely embedded and clamped in the pre-designed limiting grooves on both sides of the filter connecting cover 301, forming a reliable mechanical locking and effectively preventing the cover plate from loosening or falling off during use.

[0041] Both the filter core fixing structure of the plug-in pin 306 cooperating with the hanging seat 303 and the cover plate locking structure of the limiting protrusions 312 cooperating with the limiting grooves adopt the quick-release and quick-assembly design concept. When the non-woven fabric filter core 302 has been used for a period of time and its filtering efficiency has decreased or the filter core has been contaminated, the user only needs to manually pull the limiting clamping plate 310 to compress the diagonal support spring member 311, so as to release the limiting of the cover plate 308 and remove it; then, by pushing the sliding adjusting block 305 to compress the spring pushing member 307 and make the plug-in pin 306 disengage from the hanging seat 303, the old filter core can be quickly removed and replaced with a new one. This convenient disassembly and assembly design not only reduces the difficulty of maintenance operation, but also facilitates the user to regularly replace the filter core, so as to always maintain the cleanliness and filtering performance of the assembly, thereby continuously ensuring the filtering effect of the breathing air.

[0042] Example 3: as Figures 1-4As shown, the binding mechanism 2 includes two elastic bands 201, and a mounting ring 104 is symmetrically fixed and installed on both sides of the mask 101. The two ends of the elastic band 201 are wound and connected to the mounting ring 104. The inner side of the elastic band 201 is provided with a flexible anti-skid rubber strip 202. A plurality of second air holes 203 are uniformly and penetratingly arranged on the elastic band 201 and the flexible anti-skid rubber strip 202. The outer side of one of the elastic bands 201 is slidably connected with a sliding sleeve 204. One side of the sliding sleeve 204 is fixedly connected with a connecting seat 205. The connecting seat 205 is provided with a flexible filling pad 206 on one side. The top of the sliding sleeve 204 is fixedly connected with a head binding band 207. One end of the head binding band 207 is fixedly connected with a limiting block 208. The top of the mask 101 is fixedly installed with a limiting seat 106. The limiting block 208 is limitingly connected to the inner side of the limiting seat 106. The side of the mask 101 is fixedly connected with a flexible frame 105.

[0043] In this embodiment, in the structural design of the wearable device, the mounting ring 104 serves as a core connecting component, providing a stable and reliable assembly base point for the elastic band 201. It is connected with the device main body by integrated molding process, which not only ensures the structural strength of the connecting part, but also forms a close fit with the end joint of the elastic band 201 through precise aperture design, effectively avoiding the problem of loosening or falling off of the binding band in long-term use. This scientific connection method enables the elastic band 201 to fully exert its elastic adjustment characteristics, adapting to users with different head circumferences or face shapes, and providing a basic guarantee for stable wearing of the device.

[0044] To further optimize the wearing experience, a flexible anti-skid rubber strip 202 is specially added to the inner side surface of the elastic band 201 in contact with the human body. The rubber strip is made of food-grade silicone material, which is soft and has excellent skin-friendliness, effectively reducing the friction irritation between the band and the skin, and avoiding the occurrence of marks or discomfort after long-term wearing. At the same time, the silicone material itself has excellent anti-skid performance, which can enhance the adhesion between the band and the skin surface. Even in dynamic scenes such as exercise and walking, it can effectively prevent the device from shifting or slipping, significantly improving the stability of wearing.

[0045] In view of the problem of stuffiness that may occur during long-term wearing, the design team carefully arranges the second air holes 203 on the elastic band 201. These air holes are designed to be evenly distributed, and the aperture size is optimized and calculated to ensure smooth circulation of air inside the band, accelerate the discharge of heat and moisture, and not affect the overall elasticity and structural strength of the band. Through the circulation and exchange of air, the micro-environment of the wearing part is effectively improved, further improving the long-term wearing comfort of the device, especially suitable for use in hot weather or high-intensity activities.

[0046] The sliding sleeve 204, as a key installation carrier of the head strap 207, adopts a hollow structure design and is flexibly connected with the elastic strap 201. This design not only allows the installation position of the head strap 207 to be freely adjusted according to the head contour of the user to find the most comfortable stress point, but also cooperates with the limiting block 208 and the limiting seat 106 to build a convenient disassembly structure. The limiting block 208 can smoothly slide in the inner track of the limiting seat 106. When the head strap 207 needs to be disassembled, the limiting block 208 only needs to be pushed along the track to be unlocked, and the whole process does not need to use any tool, which is simple and efficient. At the same time, this adjustable connection mode can make the head strap 207 and the elastic strap 201 form a triangular stable support structure, further disperse the weight of the equipment, improve the overall stability when wearing, and avoid the equipment from falling and deviating due to gravity.

[0047] On the side of the sliding sleeve 204, a connecting seat 205 is fixedly installed through an ultrasonic welding process. The connecting seat is made of high-strength engineering plastic and its surface is polished to ensure the flatness of the installation surface. The connecting seat 205 is provided with a buckle type installation structure and can quickly dock and fix the flexible filling pad 206. After installation, the flexible filling pad 206 is tightly attached and not easy to fall off. The flexible filling pad 206 is made of slow-rebound memory cotton material and has excellent pressure buffering performance. It can adaptively deform according to the contour of the head, evenly disperse the pressure of the equipment on the head to a larger area, effectively relieve the oppression caused by long-time wearing, and further improve the overall wearing comfort from the details.

[0048] In the present application, the passive regulation of oxygen concentration in the respiratory gas mask in use, first through the installation ring 104 to the elastic band 201 provides a connection position, easy to cooperate with the elastic band 201 for the user to provide the role of wearing. The inner side of the elastic band 201 is provided with a flexible antiskid rubber strip 202 to facilitate the comfort and stability when wearing, to prevent easy to slip off. Through the second air hole 203, the air permeability effect is provided, further improving the comfort. Through the sliding sleeve 204 sliding connection, it is convenient to provide the installation position of the top strap 207, and the limiting block 208 is slidingly connected on the inner side of the limiting seat 106, which can provide the convenient disassembly effect, and further improve the stability when wearing. The connecting seat 205 is fixedly installed on the side of the sliding sleeve 204, which facilitates the installation of the flexible filling pad 206, and improves the wearing comfort. Through the flexible connecting piece 102, the flexible connection between the first mask 101 and the second mask 103 is adopted, which is convenient for folding operation in the process of use, so as to facilitate the adjustment of the mask volume through the folding structure, and then the oxygen concentration mask is precisely controlled by using the breathing dead cavity principle, which becomes the key to improve the convenience and adaptability of low oxygen training. After the folding structure adjusts the volume of the mask, the low oxygen exhaled gas not completely discharged in the closed space and the fresh air outside are mixed in the mask to form a stable low oxygen environment. Expanding the folding structure increases the volume of the mask, the breathing dead cavity becomes larger, the oxygen concentration decreases, and shrinking the folding structure reduces the volume, the breathing dead cavity becomes smaller, and the oxygen concentration increases. The first air hole 107 provides the function of ventilation to facilitate breathing. The connecting head 313 is installed on the side of the filter connecting cover 301 cooperating with the cover plate 308, which is convenient for connecting the butt joint sleeve 401 and the positioning convex ring 402. By adjusting the length of the positioning convex ring 402, multi-gear oxygen concentration adaptation is realized. One end of the telescopic hose 403 is connected with the air inlet cover 404, the air inlet disc 405 is arranged in the air inlet cover 404, and the air inlet 406 is arranged in the air inlet disc 405. The rotating air inlet disc 408 is connected and installed by the inner buckle ring 407, and the air inlet hole 409 is distributed on the rotating air inlet disc 408 to facilitate the rotation adjustment of different hole diameters and the air inlet 406. The air inlet hole 409 is connected with the air inlet 406 to realize the adjustment of the air inlet amount, so as to further adjust the oxygen concentration. The structure is simple and does not need additional power. The folding adjustment operation is convenient and rapid in response, and can adapt to the oxygen concentration demand in different training scenes.The non-woven fabric filter element 302 is arranged in the inner side of the filter connecting cover 301, the hanging seat 303 is fixedly installed on the inner wall of the non-woven fabric filter element 302, and the sliding rail seats 304 are symmetrically distributed, the sliding adjusting blocks 305 are slidably connected on the sliding rail seats 304, and the spring pushers 307 on the sliding adjusting blocks 305 are pushed to the hanging seat 303 in cooperation with the spring pushers 307, so that the plug-in pins 306 penetrate the non-woven fabric filter element 302 and the inner side of the hanging seat 303, the quick and convenient limiting installation is realized, the air filtering effect is provided in the process of breathing use through the non-woven fabric filter element 302, dust or small particulate matters are reduced to cause harm to the respiratory system of the body, the cover plate 308 is installed on the side of the filter connecting cover 301, the limiting clamping plates 310 are rotatably installed on the side of the cover plate 308 through the rotating seats 309, and the limiting clamping plates 310 are supported by the inclined support spring members 311, so that the limiting protrusions 312 are buckled on the inner side of the limiting recesses on both sides of the filter connecting cover 301, effective limiting is formed, convenient installation and disassembly are provided, and therefore the non-woven fabric filter element 302 can be quickly replaced after a period of use, the cleanliness is maintained, and the use effect is improved.

[0049] Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or replace some technical features with equivalent ones, as long as the modifications, equivalent replacements and improvements are within the spirit and principles of the present application.

Claims

1. A body training mask for passive regulation of oxygen concentration in breathing air, comprising a body training mask mechanism (1), characterized in that: The body training mask mechanism (1) is connected with the binding mechanism (2) on the outside, one side of the body training mask mechanism (1) is provided with the filtering mechanism (3), the side of the filtering mechanism (3) is connected with the ventilation pipeline (4), the body training mask mechanism (1) comprises a layer of mask (101), one side of the mask (101) is connected with the flexible connecting piece (102), the side of the flexible connecting piece (102) is connected with the second layer mask (103), a plurality of first air holes (107) are uniformly arranged on one side of the second layer mask (103), the filtering mechanism (3) comprises a filtering connecting cover (301), one side of the filtering connecting cover (301) is provided with the cover plate (308), one side of the cover plate (308) is fixedly connected with the butt joint (313). The ventilation pipeline (4) comprises a butt joint sleeve (401), one end of the butt joint sleeve (401) is fixedly connected with the flexible hose (403), one end of the flexible hose (403) is fixedly connected with the air inlet cover (404), the inner side of the air inlet cover (404) is fixedly installed with the air inlet disc (405), the bottom of the air inlet disc (405) is connected with the air inlet (406), the inner side of the air inlet cover (404) is fixedly connected with the inner buckle ring (407), the bottom of the air inlet cover (404) is rotatably connected with the rotary air inlet disc (408), a plurality of air inlet holes (409) with different hole diameters are uniformly distributed on the rotary air inlet disc (408) in the circumferential direction.

2. The body training mask of claim 1, wherein: The inner side of the filtering connecting cover (301) is provided with the non-woven fabric filter element (302), the inner wall of the filtering connecting cover (301) is fixedly installed with the hanging seat (303) upwards and downwards, the inner wall of the filtering connecting cover (301) is symmetrically installed with the sliding rail seat (304) upwards and downwards.

3. The body training mask of claim 2, wherein: The inner side of the sliding rail seat (304) is slidably connected with the sliding adjusting block (305), the sliding adjusting block (305) is fixedly connected with the plug-in pin (306), one end of the plug-in pin (306) is connected with the spring pushing piece (307), the plug-in pin (306) penetrates the non-woven fabric filter element (302) and the inner side of the non-woven fabric filter element (302).

4. The body training mask of claim 3, wherein: One side of the cover plate (308) is symmetrically installed with the rotating seat (309), the inner side of the rotating seat (309) is rotatably connected with the limiting clamping plate (310), one side of the limiting clamping plate (310) is rotatably connected with the inclined support spring piece (311), one end of the inclined support spring piece (311) is rotatably connected with the side of the cover plate (308), one end of the limiting clamping plate (310) is provided with the limiting protruding block (312).

5. The body training mask of claim 4, wherein: A plurality of positioning buckle pieces (314) are uniformly distributed on one side of the cover plate (308) in the circumferential direction, the outer side of the butt joint sleeve (401) is fixedly installed with the positioning convex ring (402), the positioning buckle pieces (314) are all buckled and connected on the outer wall of the positioning convex ring (402).

6. The body training mask of claim 1, wherein: The binding mechanism (2) includes two elastic bands (201), two sides of the mask (101) are symmetrically and fixedly provided with mounting rings (104), two ends of the elastic bands (201) are wound and connected on the mounting rings (104), the inner side of the elastic bands (201) is provided with flexible anti-skid rubber strips (202), and a plurality of second air holes (203) are uniformly and formed in the elastic bands (201) and the flexible anti-skid rubber strips (202).

7. The body training mask of claim 6, wherein: The outer side of one of the elastic bands (201) is slidably connected with a sliding sleeve (204), one side of the sliding sleeve (204) is fixedly connected with a connecting seat (205), and the connecting seat (205) is provided with a flexible filling pad (206) on one side.

8. The body training mask of claim 7, wherein: The top of the sliding sleeve (204) is fixedly connected with a head band (207), one end of the head band (207) is fixedly connected with a limiting block (208), and the top of the mask (101) is fixedly provided with a limiting seat (106); and the limiting block (208) is limitingly connected to the inner side of the limiting seat (106).

9. The body training mask of claim 1, wherein: The side of the mask (101) is fixedly connected with a flexible frame (105).

10. The body training mask of claim 4, wherein: The two sides of the filter connecting cover (301) are provided with limiting grooves, and the limiting blocks (312) are connected to the inner sides of the limiting grooves.

Images