Reciprocating compressed oxygen self-rescuer

Abstract

The invention relates to the technical field of self-rescuers, and discloses a reciprocating compressed oxygen self-rescuer which comprises a body, a compressed oxygen bottle and a medicine bin are arranged on the body, an inner cavity is formed in the medicine bin, medicine used for absorbing carbon dioxide is arranged in the inner cavity, and a first connector and a second connector which are communicated with the inner cavity are formed in the medicine bin. An air bag is connected between the compressed oxygen bottle and the first connector, an oxygen outlet of the compressed oxygen bottle is communicated with the first connector through the air bag, and a switch pressure reducing valve is arranged on the compressed oxygen bottle. The reciprocating type compressed oxygen self-rescuer is low in production cost, and breathing is smooth when the reciprocating type compressed oxygen self-rescuer is used; when a human body breathes once, internal gas can flow through the medicament twice, so that the absorption efficiency of the medicament on carbon dioxide is improved, the absorption is more sufficient, the carbon dioxide concentration is prevented from rising too fast, and the safe use time of the self-rescuer is prolonged; the ejector rod is accurately pressed through the air supplementing pressure plate to increase the flow discharged by the compressed oxygen bottle, so that different oxygen inhalation requirements are met, use is flexible, and the operation difficulty is low.

Description

Technical Field

[0001] The present invention relates to the technical field of self-rescuers, and in particular to a reciprocating compressed oxygen self-rescuer. Background Art

[0002] The principle of the isolated compressed oxygen self-rescuer is that in the event of a coal mine accident, the bottle valve switch is opened, and the high-pressure oxygen is reduced to normal atmospheric pressure through the pressure reducer, and then flows out from the constant flow port of the pressure reducer into the breathing air bag for people to breathe. The compressed oxygen self-rescuer includes an air bag, an oxygen bottle and calcium hydroxide for absorbing carbon dioxide. The calcium hydroxide is generally set in the medicine chamber of the self-rescuer. In the related technology, the user exhales into the air bag through a mouthpiece connected to the air bag, and the exhaled gas will diffuse from the air bag into the calcium hydroxide in the medicine chamber, so that the calcium hydroxide absorbs the carbon dioxide in the gas.

[0003] In some existing compressed oxygen self-rescuers, a switch pressure reducing valve (such as the utility model switch pressure reducing valve with application number 202321116630.6) is provided at the outlet of the compressed oxygen cylinder, and the switch pressure reducing valve is connected to the air bag of the self-rescuer; when the compressed oxygen cylinder is opened and the external force does not push the top rod of the switch pressure reducing valve, a rated flow rate (generally greater than or equal to 2.1L / min) of oxygen is discharged into the air bag through the quantitative hole of the switch pressure reducing valve for human breathing; when the user needs the oxygen cylinder to discharge a larger flow rate (generally greater than or equal to 80L / min) of oxygen for breathing, the large flow discharge requirement can be achieved by manually pushing the top rod, at this time the air bag becomes inflated, and the internal oxygen increases to meet the needs of people with large oxygen inhalation needs (such as people with larger body shapes) Or human body state (such as the increase in oxygen demand under more intense exercise state); however, some existing self-rescuers with the above-mentioned switch pressure reducing valve require more precise pressing of the airbag at the corresponding position when pressing the push rod. At this time, since the airbag is prone to wrinkles when in use, it is inconvenient to accurately press the correct position of the airbag to push the push rod, and the operation is difficult; in addition, for some existing structures with joints installed at the quantitative holes, since the switch pressure reducing valve and the oxygen cylinder are connected by (one or more) threads, there will be a certain installation error, resulting in the switch pressure reducing valve After the joint is installed, the joint will be biased to one side, thereby pushing open the airbag on this side, causing the airbag on this side to fail due to interference from the joint, and the problem of being unable to press smoothly to increase the flow rate, is inconvenient to use.

[0004] In addition, some existing compressed oxygen self-rescuers still have the following problems: 1. With a circulating breathing structure, the gas breathed by the human body (one inhalation and one exhalation) only passes through the carbon dioxide absorption medicine chamber once, that is, the human body only absorbs the carbon dioxide in the gas once for each breath, and the absorption efficiency is low. After the self-rescuer has been used for a period of time, the carbon dioxide concentration in the gas of the internal circulation breathing will be high, and the self-rescuer can be used for safe breathing for a short time, resulting in poor user experience; 2. When the self-rescuer is used, it is easy to have problems with gas breathing, affecting normal use; 3. The medicine chamber is non-detachable or inconvenient to disassemble, which makes it difficult to replace the medicine (calcium hydroxide) in the medicine chamber and the operation is troublesome, increasing the cost of medicine replacement; 4. The upper cover adopts a locking structure The structure is locked and installed with the lower shell. Before the self-rescuer is turned on and used, after the lock is opened, there is a certain probability that the buckle of the lock will still be hooked with the upper cover block, resulting in the upper cover cannot be disengaged in time and needs to be adjusted again (the user is required to manually disengage the buckle of the lock from the upper cover block). This greatly saves the wearing time of the self-rescuer and protects the user's life safety. In addition, some existing self-rescuers need to manually remove the upper cover after the upper cover is unlocked, and the opening of the upper cover is not convenient enough, and the user experience is not good. 5. Miners and other staff need to place the self-rescuer in a (mining lamp) charging cabinet for storage. Some existing self-rescuers are provided with a waist buckle for wearing a belt. The waist buckle will increase the thickness of the self-rescuer, making it difficult to put the self-rescuer into and out of the charging cabinet and easy to get stuck. Summary of the invention

[0005] To solve at least one aspect of the above problems, the present invention provides a reciprocating compressed oxygen self-rescuer, comprising: a body, wherein a compressed oxygen cylinder and a medicine bin are arranged on the body, wherein the medicine bin is provided with an inner cavity, wherein a medicine for absorbing carbon dioxide is arranged in the inner cavity, wherein a first interface and a second interface communicating with the inner cavity are arranged on the medicine bin, wherein an air bag is connected between the compressed oxygen cylinder and the first interface, wherein the oxygen outlet of the compressed oxygen cylinder is communicated with the first interface via the air bag, wherein a switch pressure reducing valve is arranged on the compressed oxygen cylinder, wherein the oxygen outlet is arranged on the switch pressure reducing valve; wherein the second interface is connected with a breathing apparatus, wherein when a human body breathes through the breathing apparatus, the airflow directions of the first interface and the second interface are opposite When inhaling through the breathing apparatus, the gas in the airbag flows through the first interface, the inner cavity, the second interface and the breathing apparatus in sequence and is inhaled into the human body; when exhaling through the breathing apparatus, the exhaled gas passes through the second interface, the inner cavity, the first interface and the airbag in sequence; the reciprocating compressed oxygen self-rescuer of the present invention has low production cost and smooth breathing when in use; when the human body breathes once, the internal gas can flow through the agent twice, thereby improving the absorption efficiency of the agent for carbon dioxide, absorbing more fully, and avoiding the carbon dioxide concentration from rising too quickly, so as to extend the safe use time of the self-rescuer; through the air pressure plate, the push rod can be accurately pressed to increase the flow rate discharged from the compressed oxygen cylinder to meet different oxygen inhalation needs, which is flexible to use and has low operating difficulty.

[0006] Optionally, a connecting cavity is provided on the medicine warehouse, the lower part of the connecting cavity is connected with the lower part of the inner cavity, the first interface is provided on the upper side of the connecting cavity, and the second interface is provided on the upper side of the inner cavity; a first protrusion is provided on the upper wall of the inner cavity, and a second protrusion is provided on the lower wall of the inner cavity; the medicine warehouse includes a warehouse body and a bottom cover provided on the lower side of the warehouse body, the inner cavity is formed between the warehouse body and the bottom cover, the first protrusion is provided on the warehouse body, and the second protrusion is provided on the bottom cover.

[0007] Optionally, the warehouse body and the bottom cover are fixed by ultrasonic welding, the medicine is solid calcium hydroxide, a breathing hose is connected between the second interface and the breathing apparatus, the breathing hose is filled with a soft and deformable metal wire filler mesh along the extension direction of the breathing hose, the breathing apparatus is a breathing mouthpiece or a breathing mask, a nose clip is connected to the breathing apparatus, two nose clips are arranged opposite to each other, the nose clip is provided with an anti-slip layer for affixing to the nose, the anti-slip layer is an anti-slip textile cloth layer or a non-woven cloth layer.

[0008] Optionally, the switch pressure reducing valve is provided with a constant flow hole, a large flow hole and a push rod for controlling the on and off of the large flow hole, the constant flow hole and the large flow hole are both connected to the airbag, the end of the push rod away from the large flow hole is a pushing end, and the airbag is provided with an air-supply pressure plate for pressing the pushing end, the air-supply pressure plate is placed on one side of the pushing end, and the air-supply pressure plate is made of soft material; there are two air-supply pressure plates, and the two air-supply pressure plates are respectively arranged on the airbag on both sides of the pushing end, the two air-supply pressure plates are symmetrically distributed, and the air-supply pressure plate is arranged on the inner side of the airbag.

[0009] Optionally, the air-inflating pressure plate is made of soft PVC material, the air-inflating pressure plate is welded to the airbag, an annular welding portion for welding to the airbag is provided on the air-inflating pressure plate, the thickness of the air-inflating pressure plate is greater than the thickness of the airbag, a joint is provided at the constant flow hole, a flow regulating valve is provided on the airbag, a conduit is connected between the flow regulating valve and the joint, the flow regulating valve is used to adjust the flow rate discharged from the constant flow hole to the inner cavity of the airbag, the flow regulating valve includes a valve body and a regulating valve core screwed on the valve body, the valve body is fixedly arranged on the airbag, an inlet, an outlet and a channel connected between the inlet and the outlet are provided on the valve body, the inlet is connected to one end of the conduit, the outlet is connected to the inner cavity of the airbag, and a sealing plug for controlling the opening size of the channel is provided on the regulating valve core.

[0010] Optionally, the main body is provided with an installation cavity for detachably installing the medicine bin, and one side of the installation cavity is provided with an insertion port for inserting the medicine bin, the first interface and the second interface are both provided on a side of the installation cavity away from the insertion port, a cover plate is detachably provided at the insertion port, a plurality of positioning protrusions are provided on the cover plate, the positioning protrusions are placed on the inner side of the installation cavity for positioning, a buckle is provided on the cover plate, a block movably engaged with the buckle is provided on the inner side of the insertion port, a limiting protrusion for limiting the position of the medicine bin is provided on the inner side wall of the installation cavity, the limiting protrusion is placed on one side of the medicine bin, a pull ring is provided at the bottom of the medicine bin, a first air guide column and a second air guide column are provided on the medicine bin, a first sealing ring for sealing against the main body is provided on the first air guide column, and a second sealing ring for sealing against the main body is provided on the second air guide column.

[0011] Optionally, the main body includes a lower shell and an upper cover, the upper cover is detachably arranged on the upper side of the lower shell, the compressed oxygen cylinder is arranged on the lower shell, a locking assembly is arranged between the lower shell and the upper cover, the lower shell and the upper cover are locked / unlocked by the locking assembly, the locking assembly is detachable from the main body, the locking assembly includes a buckle plate and a buckle ring rotatably connected to the buckle plate, the buckle plate is provided with an abutment, the lower shell is provided with a groove for rotationally abutting with the abutment, and the upper cover is provided with a slot corresponding to the buckle ring; when the locking assembly is locked, the buckle ring is engaged with the slot, and the abutment abuts in the groove; when the locking assembly is unlocked, the buckle plate is rotated around the abutment by external force to make the abutment escape from the groove.

[0012] Optionally, the slot opening is arranged upward, and when the lock assembly is locked, the upper part of the buckle is engaged with the slot, and the groove opening is arranged downward, and when the lock assembly is locked, the abutment portion is formed on the upper part of the buckle plate, and an operating handle is formed on the lower part of the buckle plate, the groove is an arc-shaped groove, and the abutment portion is arc-shaped; a first baffle plate and a second baffle plate are arranged on the main body shell, and the lock assembly is placed between the first baffle plate and the second baffle plate; an elastic member is arranged between the lower shell and the upper cover.

[0013] Optionally, a waist buckle and an adjusting belt mechanism are provided on the main body, the waist buckle is hinged on the main body, the adjusting belt mechanism includes an adjusting buckle and a rope, the adjusting buckle is passed through the main body, the rope is passed through the adjusting buckle, the adjusting buckle can be adjusted and self-positioned along the extension direction of the rope under external force, a hinge block for hingedly connecting the waist buckle is provided on one side of the main body, a placement plane is provided at the bottom of the main body, the waist buckle includes an integrally formed hinge shaft and a shaft-shaped buckle body, the hinge shaft is hinged on the hinge block, the first axis of the shaft-shaped buckle body is parallel to and does not overlap with the second axis of the hinge shaft, the second axis is the rotation axis of the hinge shaft when it rotates, and the rotation axis is perpendicular to the placement plane.

[0014] Optionally, there are two hinge shafts, which are respectively connected to the two ends of the shaft-shaped buckle body, and there are two hinge blocks, which are hinged to the hinge blocks in a one-to-one correspondence; the main body includes an upper cover and a lower shell, and the hinge blocks include a first hinge block and a second hinge block, the first hinge block is arranged on the upper cover, and the second hinge block is arranged on the lower shell.

[0015] Compared with the prior art, the reciprocating compressed oxygen self-rescuer of the present invention has low production cost and smooth breathing when in use; once the human body breathes, the internal gas can flow through the medicine twice, thereby improving the absorption efficiency of the medicine for carbon dioxide, absorbing more fully, and avoiding too fast increase in carbon dioxide concentration, so as to extend the safe use time of the self-rescuer; through the air pressure plate, the push rod is accurately pressed to increase the flow rate discharged from the compressed oxygen cylinder to meet different oxygen inhalation needs, which is flexible to use and has low operating difficulty; through the first protrusion and the second protrusion, gaps are left between the upper and lower inner cavity of the medicine chamber and the medicine, thereby reducing the gas resistance above and below the inner cavity of the medicine chamber during breathing and improving smooth breathing; the nose clip is provided with a non-slip layer for sticking to the nose, so that the nose clip does not slip when in use It is easy to slide off the nose and is reliable to use. Through the air pressure plate, it is convenient to accurately press the top rod to increase the flow rate of the compressed oxygen cylinder to meet different oxygen inhalation needs. It is flexible to use and has low operating difficulty. The medicine chamber is easy to disassemble and assemble, and the operation is convenient, which makes it convenient to continue to use the self-rescuer after replacing the medicine chamber, saving costs. When the upper cover is unlocked and opened, the buckle can be separated from the lower shell to avoid the buckle hooking the lower shell and the upper cover. The upper cover is easy to open and labor-saving, which saves the time of wearing the self-rescuer and provides a good user experience. The waist buckle can be rotated and retracted. After retraction, the thickness of the self-rescuer can be reduced, which is convenient for putting in and taking out of narrow spaces. Through the adjustment buckle, the user can adjust the position of the rope according to needs to meet the wearing and use needs of the shoulder strap, neck strap and waist belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of the reciprocating compressed oxygen self-rescuer of the present invention;

[0017] Figure 2 It is an exploded view of the reciprocating compressed oxygen self-rescuer of the present invention;

[0018] Figure 3 The cross-sectional view of the reciprocating compressed oxygen self-rescuer of the present invention Figure 1 ;

[0019] Figure 4 It is a structural schematic diagram of the medicine bin of the reciprocating compressed oxygen self-rescuer of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the reciprocating compressed oxygen self-rescuer chamber of the present invention;

[0021] Figure 6 It is a schematic structural diagram of the breathing hose of the reciprocating compressed oxygen self-rescuer of the present invention;

[0022] Figure 7 It is a cross-sectional view of the breathing hose of the reciprocating compressed oxygen self-rescuer of the present invention;

[0023] Figure 8 It is a structural schematic diagram of the nose clip of the reciprocating compressed oxygen self-rescuer of the present invention;

[0024] Fig. 9 The cross-sectional view of the reciprocating compressed oxygen self-rescuer of the present invention Figure 2 ;

[0025] Fig.10 for Fig. 9 Enlarged view of part A in the middle;

[0026] Fig.11 It is a cross-sectional view of the flow regulating valve portion of the reciprocating compressed oxygen self-rescuer of the present invention;

[0027] Fig.12 for Fig.11 Enlarged view of middle part B;

[0028] Fig.13 for Fig.11 Enlarged view of the middle C part;

[0029] Fig.14 It is a structural schematic diagram of the pull ring part of the reciprocating compressed oxygen self-rescuer of the present invention;

[0030] Fig.15 It is a structural schematic diagram of the side of the reciprocating compressed oxygen self-rescuer of the present invention;

[0031] Fig.16 for Fig.15 Enlarged view of the middle E part;

[0032] Fig.17 The cross-sectional view of the reciprocating compressed oxygen self-rescuer of the present invention Figure 3 ;

[0033] Fig.18 for Fig.17 Enlarged view of the middle F part;

[0034] Fig.19 The cross-sectional view of the reciprocating compressed oxygen self-rescuer of the present invention Figure 4 ;

[0035] Fig. 20 for Fig.19 Enlarged view of the middle G section;

[0036] Fig.21 It is a structural schematic diagram of the elastic part of the reciprocating compressed oxygen self-rescuer of the present invention;

[0037] Fig. 22 It is a structural schematic diagram of the buckle plate of the reciprocating compressed oxygen self-rescuer of the present invention;

[0038] Fig.23 It is a structural schematic diagram of the hinge block part of the reciprocating compressed oxygen self-rescuer of the present invention;

[0039] Fig.24 for Fig.23 Enlarged view of the middle H section;

[0040] Fig.25 It is a structural schematic diagram of the waist buckle of the reciprocating compressed oxygen self-rescuer of the present invention;

[0041] Fig.26 The use state of the reciprocating compressed oxygen self-rescuer of the present invention is Figure 1 ;

[0042] Fig. 27 for Fig.26 Enlarged view of the middle part I;

[0043] Fig.28 The use state of the reciprocating compressed oxygen self-rescuer of the present invention is Figure 2 ;

[0044] The corresponding component names of the various reference numerals in the figure are: 1 is the body, 101 is the valve body, 1011 is the inlet, 1012 is the outlet, 1013 is the channel, 102 is the regulating valve core, 103 is the sealing plug, 104 is the installation cavity, 1041 is the inlet, 1042 is the block, 1043 is the limiting protrusion, 2 is the compressed oxygen cylinder, 201 is the pressure reducing valve, 2011 is the constant flow hole, 2012 is the large flow hole, 2 013 is the push rod, 2014 is the push end, 2015 is the joint, 3 is the medicine bin, 31 is the bin body, 32 is the bottom cover, 33 is the first air guide column, 331 is the first sealing ring, 34 is the second air guide column, 341 is the second sealing ring, 301 is the inner cavity, 3011 is the first protrusion, 3012 is the second protrusion, 302 is the first interface, 303 is the second interface, 304 is the connecting cavity, 305 is the pull ring, and 4 is the air bag , 5 is a breathing apparatus, 6 is a breathing hose, 61 is a wire filler mesh, 7 is a nose clip, 701 is an anti-slip layer, 702 is a torsion spring, 8 is a catheter, 9 is an air pressure plate, 10 is a flow control valve, 11 is a cover plate, 111 is a positioning protrusion, 112 is a buckle, 12 is a lower shell, 121 is a groove, 13 is an upper cover, 131 is a card slot, 14 is a buckle plate, 141 is an abutment portion, 142 is an operating handle, 15 is a buckle ring, 16 is the first baffle, 17 is the second baffle, 18 is the elastic member, 181 is the mounting groove, 20 is the axial buckle body, 2001 is the first axis, 21 is the hinge axis, 2101 is the second axis, 22 is the waist buckle, 23 is the adjustment buckle, 24 is the rope, 241 is the neck strap, 242 is the waist belt, 25 is the hinge block, 251 is the first hinge block, 252 is the second hinge block, 1001 is the placement plane, and 26 is the mounting hole. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] In the description of the present invention, it is to be understood that the terms "upper", "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0048] See also Figure 1-Figure 28 The embodiment of the present invention provides a reciprocating compressed oxygen self-rescuer, comprising: a body 1, a compressed oxygen cylinder 2 and a medicine bin 3 are arranged on the body 1, the medicine bin 3 is provided with an inner cavity 301, a medicine for absorbing carbon dioxide is arranged in the inner cavity 301, a first interface 302 and a second interface 303 communicating with the inner cavity 301 are arranged on the medicine bin 3, an air bag 4 is connected between the compressed oxygen cylinder 2 and the first interface 302, the oxygen outlet of the compressed oxygen cylinder 2 is communicated with the first interface 302 through the air bag 4, a switch pressure reducing valve 201 is arranged on the compressed oxygen cylinder 2, and the oxygen outlet is arranged on the switch pressure reducing valve 201; the second interface 303 is connected to a breathing apparatus 5, and when a human body breathes through the breathing apparatus 5, the airflow directions of the first interface 302 and the second interface 303 are opposite. On the contrary; when inhaling through the breathing apparatus 5, the gas in the airbag 4 flows through the first interface 302, the inner cavity 301, the second interface 303 and the breathing apparatus 5 in sequence and is inhaled into the human body; when exhaling through the breathing apparatus 5, the exhaled gas passes through the second interface 303, the inner cavity 301, the first interface 302 and the airbag 4 in sequence; the reciprocating compressed oxygen self-rescuer of the present invention has low production cost and smooth breathing when used; when the human body breathes once, the internal gas can flow through the agent twice, thereby improving the absorption efficiency of the agent for carbon dioxide, absorbing more fully, and avoiding the carbon dioxide concentration from rising too quickly, so as to extend the safe use time of the self-rescuer; through the air pressure plate, the top rod can be accurately pressed to increase the flow rate discharged from the compressed oxygen cylinder to meet different oxygen inhalation needs, which is flexible to use and has low operating difficulty.

[0049] See also Figure 1-Figure 8The medicine bin 3 is provided with a connecting cavity 304, the lower part of the connecting cavity 304 is connected with the lower part of the inner cavity 301, the first interface 302 is provided on the upper side of the connecting cavity 304, and the second interface 303 is provided on the upper side of the inner cavity 301; the upper wall of the inner cavity 301 is provided with a first protrusion 3011, and the lower wall of the inner cavity 301 is provided with a second protrusion 3012; the medicine bin 3 includes a bin body 31 and a bottom cover 32 provided on the lower side of the bin body 31, the inner cavity 301 is formed between the bin body 31 and the bottom cover 32, the first protrusion 3011 is provided on the bin body 31, and the inner cavity 301 is formed between the bin body 31 and the bottom cover 32. The second protrusion 3012 is arranged on the bottom cover 32; the chamber body 31 and the bottom cover 32 are fixed by ultrasonic welding, the medicine is solid calcium hydroxide, a breathing hose 6 is connected between the second interface 303 and the breathing apparatus 5, and a soft deformable metal wire filler mesh 61 is filled in the breathing hose 6 along the extending direction of the breathing hose 6, the breathing apparatus 5 is a breathing mouthpiece or a breathing mask, and a nose clip 7 is connected to the breathing apparatus 5, and two nose clips 7 are arranged oppositely, and a torsion spring 702 is connected between the two nose clips 7, through The elastic force of the torsion spring 702 clamps the two nose clips 7, and the nose clip 7 is provided with an anti-skid layer 701 for abutting against the nose, and the anti-skid layer 701 is an anti-skid woven fabric layer or a non-woven fabric layer; the first protrusion and the second protrusion allow gaps to be left between the upper and lower inner cavities of the medicine chamber and the medicine, thereby reducing the gas resistance above and below the inner cavities of the medicine chamber during breathing and improving the smoothness of breathing; the breathing hose is filled with a soft and deformable metal wire filler mesh along the extension direction of the breathing hose, and when the gas flows through the metal wire filler mesh, it can be absorbed by the metal wire filler mesh The breathing hose can lose part of the heat to avoid discomfort caused by excessively high temperature of the gas inhaled by the human body; since the metal wire filler mesh is filled in the breathing hose, it has a certain supporting force on the tube wall of the breathing hose, making the breathing hose not easy to bend, so as to improve the smoothness of breathing; the nose clip is provided with a non-slip layer for sticking to the nose, so that the nose clip is not easy to slide off the nose when in use, and it is reliable to use; the warehouse body and the bottom cover are fixed by ultrasonic welding to improve the sealing and strength of the medicine warehouse; specifically, the medicine is cylindrical calcium hydroxide for mining.

[0050] See also Figure 9-13The switch pressure reducing valve 201 is provided with a constant flow hole 2011, a large flow hole 2012 and a push rod 2013 for controlling the on and off of the large flow hole 2012. The constant flow hole 2011 and the large flow hole 2012 are both connected to the airbag 4. The end of the push rod 2013 away from the large flow hole 2012 is a pushing end 2014. The airbag 4 is provided with an air-inflating pressure plate 9 for pressing the pushing end 2014. The air-inflating pressure plate 9 is placed on one side of the pushing end 2014, and the air-inflating pressure plate 9 is made of a soft material; there are two air-inflating pressure plates 9, which are respectively arranged on the airbags 4 on both sides of the pushing end 2014, and the two air-inflating pressure plates 9 are symmetrically distributed, and the air-inflating pressure plates 9 are arranged on the inner side of the airbag 4; the air-inflating pressure plate 9 is made of a soft PVC material, and the air-inflating pressure plate 9 is provided with a constant flow hole 2011, a large flow hole 2012 and a push rod 2013 for controlling the on and off of the large flow hole 2012. The pressure plate 9 is welded to the airbag 4, and an annular welding portion 901 for welding with the airbag 4 is provided on the air-inflating pressure plate 9. The thickness of the air-inflating pressure plate 9 is greater than the thickness of the airbag 4. A joint 2015 is provided at the constant flow hole 2011. A flow regulating valve 10 is provided on the airbag 4. A conduit 8 is connected between the flow regulating valve 10 and the joint 2015. The flow regulating valve 10 is used to adjust the flow rate discharged from the constant flow hole 2011 to the inner cavity of the airbag 4. The flow regulating valve 10 includes a valve body 101 and a regulating valve core 102 screwed on the valve body 101. The valve body 101 is fixedly arranged on the airbag 4. The valve body 101 is provided with an inlet 1011, an outlet 1012 and a channel 10 connected between the inlet 1011 and the outlet 1012. 13, the inlet 1011 is connected to one end of the catheter 8, and the outlet 1012 is connected to the inner cavity of the airbag 4. A sealing plug 103 for controlling the opening size of the channel 1013 is provided on the regulating valve core 102. The sealing plug is driven to move by manually rotating the regulating valve core to adjust the channel opening size, so that the user can fine-tune the oxygen flow rate discharged from the quantitative hole according to the oxygen inhalation demand. For example, the flow rate of the quantitative hole can be reduced or closed when in a safe place or at rest to reduce the oxygen consumption of the compressed oxygen cylinder and extend the use time. It is flexible to use; through the air replenishment pressure plate, it is convenient to accurately press the push rod to increase the flow rate discharged from the compressed oxygen cylinder to meet different oxygen inhalation needs. It is flexible to use and has low operating difficulty; there are two air replenishment pressure plates, when one When the air-inflation pressure plate on one side fails, air can be inflated through the air-inflation pressure plate on the other side, which is reliable to use. When in use, press the air-inflation pressure plate inward by hand to push the push rod to open the large flow hole. Adding the air-inflation pressure plate makes the pressing part of the airbag air-inflation thicker, so that the part is not easy to wrinkle, and the air-inflation pressure plate can make it easy for users to know the pressing part, which is convenient for blind operation. The air-inflation pressure plate is made of soft PVC material, which has the advantages of good chemical stability, good wear resistance, and good toughness. The air-inflation pressure plate is provided with an annular welding part for welding with the airbag. After welding, the structure is stable and not easy to detach, and after welding, the annular welding part will show an obvious welding circle on the outside of the airbag, so that the user can observe the position of the pressing part, reducing the difficulty of operation.The channel opening size can be adjusted by manually rotating the regulating valve core, so that the user can fine-tune the oxygen flow discharged from the quantitative hole according to the oxygen inhalation demand, so as to extend the use time. ;

[0051] See also Figure 1 , Figure 2 , Figure 3 and Fig.14 The main body 1 is provided with an installation cavity 104 for detachably installing the medicine bin 3, and an insertion port 1041 for inserting the medicine bin 3 is provided on one side of the installation cavity 104. The first interface 302 and the second interface 303 are both provided on the side of the installation cavity 104 away from the insertion port 1041. A cover plate 11 is detachably provided at the insertion port 1041, and a plurality of positioning protrusions 111 are provided on the cover plate 11. The positioning protrusion 111 is placed inside the installation cavity 104 for positioning. A buckle 112 is provided on the cover plate 11, and a block 1042 that is movably engaged with the buckle 112 is provided inside the insertion port 1041. A limiting protrusion 1043 for limiting the position of the medicine bin 3 is provided on the inner side wall of the installation cavity 104, and the limiting protrusion 1043 is placed on one side of the medicine bin 3. A pull ring 305 is provided at the bottom of the medicine bin 3. There are a first air guide column 33 and a second air guide column 34. The first air guide column 33 is provided with a first sealing ring 331 for sealing against the main body 1, and the second air guide column 34 is provided with a second sealing ring 341 for sealing against the main body 1 to prevent air leakage. The medicine bin of the self-rescuer is easy to disassemble and assemble, and the operation is convenient, which is convenient for the self-rescuer to continue using after the medicine bin is replaced, saving costs. After removing the cover plate, the medicine bin can be removed from the installation cavity, which is convenient to operate. A number of positioning protrusions are provided on the cover plate, and the positioning protrusions are placed on the inner side of the installation cavity for positioning. After installation, the cover plate is not easy to move. The limiting protrusion is placed on one side of the medicine bin, so that the medicine bin is not easy to move after installation, which increases the stability and reliability of the self-rescuer. A pull ring is provided at the bottom of the medicine bin, which is convenient for pulling out the medicine bin to complete the disassembly steps, with low operating difficulty and improved disassembly speed.

[0052] See also Figure 15-Figure 22The body 1 includes a lower shell 12 and an upper cover 13. The upper cover 13 is detachably arranged on the upper side of the lower shell 12. The compressed oxygen cylinder 2 is arranged on the lower shell 12. A lock assembly is arranged between the lower shell 12 and the upper cover 13. The lower shell 12 and the upper cover 13 are locked / unlocked by the lock assembly. The lock assembly and the body 1 can be separated. The lock assembly includes a buckle plate 14 and a buckle ring 15 rotatably connected to the buckle plate 14. The buckle plate 14 is provided with an abutment 141. The lower shell 12 is provided with a groove 121 for rotatably abutting with the abutment 141. The upper cover 13 is provided with a card slot 131 corresponding to the buckle ring 15; when the lock When the buckle assembly is locked, the buckle ring 15 is engaged with the card slot 131, and the abutting portion 141 abuts against the groove 121; when the lock assembly is unlocked, the buckle plate 14 is rotated around the abutting portion 141 by external force, so that the abutting portion 141 is out of the groove 121; the opening of the card slot 131 is set upward, when the lock assembly is locked, the upper part of the buckle ring 15 is engaged with the card slot 131, and the opening of the groove 121 is set downward, when the lock assembly is locked, the abutting portion 141 is formed on the upper part of the buckle plate 14, and the lower part of the buckle plate 14 is formed with an operating handle 142, the groove 121 is an arc-shaped groove, and the abutting portion 141 is arc-shaped; the main body shell is provided with The first baffle plate 16 and the second baffle plate 17, the lock assembly is placed between the first baffle plate 16 and the second baffle plate 17; an elastic member 18 is arranged between the lower shell 12 and the upper cover 13, and a mounting groove 181 for mounting the elastic member 18 is arranged on the lower shell 12; the elastic member in this embodiment is a compression spring; when the upper cover of the self-rescuer is unlocked and opened, the buckle ring can be separated from the lower shell, so as to avoid the buckle ring hooking the lower shell and the upper cover, and the upper cover is easy to open and labor-saving, which saves the time of wearing the self-rescuer and provides a good user experience; an operating handle is formed at the lower part of the buckle plate, and the locking / unlocking operation is performed by turning the operating handle by hand, which reduces the difficulty of operation; The shell is provided with a guide slope for facilitating the introduction / export of the abutting part into / from the groove, thereby reducing the difficulty of operation; the positioning protrusion is placed on the inner side of the lower opening for positioning, and the upper cover is not prone to horizontal displacement when it is installed on the lower shell, thereby improving the stability of the structure; the main body shell is provided with a first baffle plate and a second baffle plate, and the lock assembly is placed between the first baffle plate and the second baffle plate, thereby avoiding mislocking due to accidental triggering of the lock assembly by external factors, and ensuring reliable use; an elastic member is provided between the lower shell and the upper cover, and after the lock assembly is unlocked by the elastic member, the upper cover can automatically pop open, making opening the cover more convenient and labor-saving, further saving the user's time in wearing the self-rescuer.

[0053] See also Figure 23-Figure 28The main body 1 is provided with a waist buckle 22 and an adjusting belt mechanism, the waist buckle 22 is hinged on the main body 1, the adjusting belt mechanism includes an adjusting buckle 23 and a rope 24, the adjusting buckle 23 is passed through the main body 1, the rope 24 is passed through the adjusting buckle 23, the adjusting buckle 23 is a Japanese buckle, and the main body is provided with a mounting hole 26 for passing the adjusting buckle 23, the mounting hole 26 is a waist-shaped hole, and the adjusting buckle can be adjusted to an appropriate position along the waist-shaped hole to avoid occupying too much lateral space, that is, the space in the X-axis direction when stored, so as to facilitate placement and retrieval; the adjusting buckle 23 can be adjusted and self-positioned along the extending direction of the rope 24 under external force, and a hinge block 25 for hinged waist buckle 22 is provided on one side of the main body 1, and the main body The bottom of the waist buckle 22 is provided with a placement plane 1001, the waist buckle 22 includes an integrally formed hinge shaft 21 and a shaft-shaped buckle body 20, the hinge shaft 21 is hinged on the hinge block 25, the first axis 2001 of the shaft-shaped buckle body 20 is parallel to and does not overlap with the second axis 2101 of the hinge shaft 21, the second axis 2101 is the rotation axis of the hinge shaft 21 when rotating, and the rotation axis is perpendicular to the placement plane 1001; there are two hinge shafts 21, the two hinge shafts 21 are respectively connected to the two ends of the shaft-shaped buckle body 20, there are two hinge blocks 25, the hinge shafts 21 and the hinge blocks 25 are hinged one by one; the body 1 includes an upper cover 13 and a lower shell 12, the hinge block 25 includes a first hinge block 251 and a second hinge block 252. The hinge block 252, the first hinge block 251 is arranged on the upper cover 13, and the second hinge block 252 is arranged on the lower shell 12; the waist buckle of the self-rescuer can be rotated and retracted, and the thickness of the self-rescuer can be reduced after retraction, which is convenient for putting in and taking out of a narrow space; through the adjustment buckle, it is convenient for the user to adjust the position of the rope according to the needs to meet the wearing and use requirements of the shoulder strap, neck strap and waist belt; the waist buckle is assembled with the upper cover and the lower shell, and the waist buckle is easy to install, simple in structure and low in production cost; the installation hole is a waist-shaped hole, and the adjustment buckle can be adjusted to an appropriate position along the waist-shaped hole to avoid occupying too much horizontal space, that is, the space in the X-axis direction when stored, so as to facilitate placement and removal; the waist buckle The buckle is in the extended state, which is convenient for the user to wear the belt on the inside of the waist buckle, and it is convenient to store it in the retracted state; the thickness of the self-rescuer in the retracted state is smaller than that in the extended state, which is convenient for putting into and taking out of a narrow space; there are two adjustment buckles, and the two ends of the rope are respectively passed through the two adjustment buckles; the position of the rope is adjusted according to the needs to meet the wearing and use needs of the shoulder strap, neck strap and waist belt; the rope is adjusted as shown in the figure, that is, it can play the role of a shoulder strap; the rope is adjusted as shown in the figure, the upper part of the rope is hung on the neck to play the role of a neck strap 241, and the lower part of the rope is tied to the waist of the human body to play the role of a waist belt 242, so that the self-rescuer is not easy to shake greatly when performing some actions such as crawling;Specifically, when using the self-rescuer, first hang the neck strap part on the neck, then use the waist belts on both sides to pull up the height of the self-rescuer to self-position, while not causing the shoulder strap to rub on the neck, shorten the original shoulder strap length to the neck strap length, and realize the neck strap function. At this time, the waist belts on both sides that have been pulled out can be tied around the back to realize the waist belt function, and the use experience is good. ;

[0054] The reciprocating compressed oxygen self-rescuer of the present invention has low production cost and smooth breathing when in use; the internal gas can flow through the medicine twice when the human body breathes once, thereby improving the absorption efficiency of the medicine for carbon dioxide, absorbing more fully, and avoiding too fast increase in carbon dioxide concentration, so as to extend the safe use time of the self-rescuer; through the air-filling pressure plate, the push rod is accurately pressed to increase the flow rate discharged from the compressed oxygen cylinder to meet different oxygen inhalation needs, and it is flexible to use and has low operating difficulty; through the first protrusion and the second protrusion, gaps are left between the upper and lower inner cavity of the medicine chamber and the medicine, so as to reduce the gas resistance above and below the inner cavity of the medicine chamber during breathing and improve the smoothness of breathing; the nose clip is provided with an anti-slip layer for sticking to the nose, so that the nose clip is not easy to slip from the nose when in use It can slide up and down, and is reliable to use. Through the air pressure plate, it is convenient to accurately press the push rod to increase the flow rate of the compressed oxygen cylinder to meet different oxygen inhalation needs. It is flexible to use and has low operating difficulty. The medicine chamber is easy to disassemble and assemble, and the operation is convenient, which makes it convenient to continue to use the self-rescuer after replacing the medicine chamber, saving costs. The buckle can be separated from the lower shell when the upper cover is unlocked and opened to avoid the buckle hooking the lower shell and the upper cover. The upper cover is easy to open and labor-saving, which saves the time of wearing the self-rescuer and provides a good user experience. The waist buckle can be rotated and retracted, and the thickness of the self-rescuer can be reduced after retraction, which is convenient for putting in and taking out of narrow spaces. Through the adjustment buckle, the user can adjust the position of the rope according to needs to meet the wearing and use needs of the shoulder strap, neck strap and waist belt.

[0055] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A reciprocating compressed oxygen self-rescuer, characterized in that: include: A body (1) is provided with a compressed oxygen cylinder (2) and a medicine bin (3), the medicine bin (3) is provided with an inner cavity (301), a medicine for absorbing carbon dioxide is provided in the inner cavity (301), the medicine bin (3) is provided with a first interface (302) and a second interface (303) which are in communication with the inner cavity (301), an air bag (4) is connected between the compressed oxygen cylinder (2) and the first interface (302), an oxygen outlet of the compressed oxygen cylinder (2) is in communication with the first interface (302) via the air bag (4), a switch pressure reducing valve (201) is provided on the compressed oxygen cylinder (2), and the oxygen outlet is provided at The switch pressure reducing valve (201) is connected to the second interface (303) with a breathing apparatus (5). When a human body breathes through the breathing apparatus (5), the airflow directions of the first interface (302) and the second interface (303) are opposite. When a human body inhales through the breathing apparatus (5), the gas in the airbag (4) flows sequentially through the first interface (302), the inner cavity (301), the second interface (303) and the breathing apparatus (5) and is inhaled into the human body. When a human body exhales through the breathing apparatus (5), the exhaled gas flows sequentially through the second interface (303), the inner cavity (301), the first interface (302) and the airbag (4).

2. The reciprocating compressed oxygen self-rescuer according to claim 1, characterized in that: The medicine bin (3) is provided with a connecting cavity (304), the lower part of the connecting cavity (304) is connected with the lower part of the inner cavity (301), the first interface (302) is provided on the upper side of the connecting cavity (304), and the second interface (303) is provided on the upper side of the inner cavity (301); the upper wall of the inner cavity (301) is provided with a first protrusion (3011), and the lower wall of the inner cavity (301) is provided with a second protrusion (3012); the medicine bin (3) comprises a bin body (31) and a bottom cover (32) provided on the lower side of the bin body (31), the inner cavity (301) is formed between the bin body (31) and the bottom cover (32), the first protrusion (3011) is provided on the bin body (31), and the second protrusion (3012) is provided on the bottom cover (32).

3. The reciprocating compressed oxygen self-rescuer according to claim 2, characterized in that: The chamber body (31) and the bottom cover (32) are fixed by ultrasonic welding. The medicine is solid calcium hydroxide. A breathing hose (6) is connected between the second interface (303) and the breathing apparatus (5). The breathing hose (6) is filled with a soft and deformable metal wire filler mesh (61) along the extension direction of the breathing hose (6). The breathing apparatus (5) is a breathing mouthpiece or a breathing mask. A nose clip (7) is connected to the breathing apparatus (5). Two nose clips (7) are arranged opposite to each other. The nose clip (7) is provided with an anti-slip layer (701) for abutting against the nose. The anti-slip layer (701) is an anti-slip textile fabric layer or a non-woven fabric layer.

4. The reciprocating compressed oxygen self-rescuer according to claim 1, characterized in that: The switch pressure reducing valve (201) is provided with a constant flow hole (2011), a large flow hole (2012) and a push rod (2013) for controlling the on and off of the large flow hole (2012); the constant flow hole (2011) and the large flow hole (2012) are both connected to the air bag (4); the end of the push rod (2013) away from the large flow hole (2012) is a pushing end (2014); the air bag (4) is provided with a push rod (2013) for pressing An air-compensating pressure plate (9) is provided to press the pushing end (2014), the air-compensating pressure plate (9) is arranged on one side of the pushing end (2014), and the air-compensating pressure plate (9) is made of a soft material; two air-compensating pressure plates (9) are provided, and the two air-compensating pressure plates (9) are respectively provided on the airbag (4) on both sides of the pushing end (2014), and the two air-compensating pressure plates (9) are symmetrically distributed, and the air-compensating pressure plates (9) are provided on the inner side of the airbag (4).

5. The reciprocating compressed oxygen self-rescuer according to claim 4, characterized in that: The air-inflating pressure plate (9) is made of soft PVC material. The air-inflating pressure plate (9) is welded to the airbag (4). The air-inflating pressure plate (9) is provided with an annular welding portion (901) for welding to the airbag (4). The thickness of the air-inflating pressure plate (9) is greater than the thickness of the airbag (4). A joint (2015) is provided at the constant flow hole (2011). The airbag (4) is provided with a flow regulating valve (10). A conduit (8) is connected between the flow regulating valve (10) and the joint (2015). The flow regulating valve (10) is used to adjust the flow rate discharged from the constant flow hole (2011) to the inner cavity of the airbag (4). The flow control valve (10) comprises a valve body (101) and a control valve core (102) screwed onto the valve body (101); the valve body (101) is fixedly arranged on the airbag (4); the valve body (101) is provided with an inlet (1011), an outlet (1012) and a channel (1013) communicating between the inlet (1011) and the outlet (1012); the inlet (1011) is connected to one end of the conduit (8); the outlet (1012) is communicated with the inner cavity of the airbag (4); and the control valve core (102) is provided with a sealing plug (103) for controlling the opening size of the channel (1013).

6. The reciprocating compressed oxygen self-rescuer according to claim 1, characterized in that: The body (1) is provided with a mounting cavity (104) for detachably mounting the medicine bin (3); a side of the mounting cavity (104) is provided with an insertion port (1041) for inserting the medicine bin (3); the first interface (302) and the second interface (303) are both provided on a side of the mounting cavity (104) away from the insertion port (1041); a cover plate (11) is detachably provided at the insertion port (1041); a plurality of positioning protrusions (111) are provided on the cover plate (11); the positioning protrusions (111) are placed inside the mounting cavity (104) for positioning; a buckle (112) is provided on the cover plate (11); the insertion port A block (1042) movably engaged with the buckle (112) is arranged on the inner side of the housing (1041); a limiting protrusion (1043) for limiting the position of the medicine bin (3) is arranged on the inner wall of the installation cavity (104); the limiting protrusion (1043) is placed on one side of the medicine bin (3); a pull ring (305) is arranged at the bottom of the medicine bin (3); a first air guide column (33) and a second air guide column (34) are arranged on the medicine bin (3); a first sealing ring (331) for sealing against the main body (1) is arranged on the first air guide column (33); and a second sealing ring (341) for sealing against the main body (1) is arranged on the second air guide column (34).

7. The reciprocating compressed oxygen self-rescuer according to claim 1, characterized in that: The body (1) comprises a lower shell (12) and an upper cover (13), wherein the upper cover (13) is detachably arranged on the upper side of the lower shell (12), the compressed oxygen cylinder (2) is arranged on the lower shell (12), a locking assembly is arranged between the lower shell (12) and the upper cover (13), the lower shell (12) and the upper cover (13) are locked / unlocked by the locking assembly, the locking assembly and the body (1) are detachably arranged, the locking assembly comprises a buckle plate (14) and a buckle ring (15) rotatably connected to the buckle plate (14), the buckle plate (14) A contact portion (141) is provided on the upper part, a groove (121) for rotatably contacting with the contact portion (141) is provided on the lower shell (12), and a slot (131) corresponding to the buckle ring (15) is provided on the upper cover (13); when the locking assembly is locked, the buckle ring (15) is engaged with the slot (131), and the contact portion (141) is contacted with the groove (121); when the locking assembly is unlocked, the buckle plate (14) is rotated around the contact portion (141) by external force, so that the contact portion (141) is disengaged from the groove (121).

8. The reciprocating compressed oxygen self-rescuer according to claim 7, characterized in that: The slot (131) is opened upwards. When the locking assembly is locked, the upper part of the buckle ring (15) is engaged with the slot (131). The groove (121) is opened downwards. When the locking assembly is locked, the abutment portion (141) is formed on the upper part of the buckle plate (14). An operating handle (142) is formed on the lower part of the buckle plate (14). The groove (121) is an arc-shaped groove. The abutment portion (141) is arc-shaped. A first baffle plate (16) and a second baffle plate (17) are provided on the main body shell. The locking assembly is placed between the first baffle plate (16) and the second baffle plate (17). An elastic member (18) is provided between the lower shell (12) and the upper cover (13).

9. The reciprocating compressed oxygen self-rescuer according to claim 1, characterized in that: The body (1) is provided with a waist buckle (22) and an adjusting belt mechanism, the waist buckle (22) is hinged to the body (1), the adjusting belt mechanism comprises an adjusting buckle (23) and a rope (24), the adjusting buckle (23) is passed through the body (1), the rope (24) is passed through the adjusting buckle (23), the adjusting buckle (23) can be adjusted and self-positioned along the extension direction of the rope (24) under external force, and a hinge block (25) for hingedly connecting the waist buckle (22) is provided on one side of the body (1). ), a placement plane (1001) is provided at the bottom of the body (1), the waist buckle (22) comprises an integrally formed hinge shaft (21) and an axial buckle body (20), the hinge shaft (21) is hinged on the hinge block (25), a first axis (2001) of the axial buckle body (20) and a second axis (2101) of the hinge shaft (21) are parallel and do not overlap, the second axis (2101) is the rotation axis of the hinge shaft (21) when it rotates, and the rotation axis is perpendicular to the placement plane (1001).

10. The reciprocating compressed oxygen self-rescuer according to claim 9, characterized in that: There are two hinge shafts (21), and the two hinge shafts (21) are respectively connected to the two ends of the shaft-shaped buckle body (20); there are two hinge blocks (25), and the hinge shafts (21) are hinged to the hinge blocks (25) in a one-to-one correspondence; the main body (1) includes an upper cover (13) and a lower shell (12); the hinge blocks (25) include a first hinge block (251) and a second hinge block (252); the first hinge block (251) is arranged on the upper cover (13), and the second hinge block (252) is arranged on the lower shell (12).

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