Oxygen bag applied to self-rescuer

Abstract

An oxygen bag applied to a self-rescuer comprises an oxygen bag body, the oxygen bag body is provided with an assembly front face, an assembly back face and assembly side faces, an oxygen inhalation nozzle is arranged on the assembly front face, and the oxygen bag body is arranged on a shell connecting opening of a shell used for containing an oxygen bottle. A visual window mounting opening for arranging a visual window, a manual compensation valve mounting opening for arranging a manual compensation valve of the pressure reducer and an exhaust valve connecting opening for arranging an exhaust valve are formed in the assembly back surface, and a pressure reducer mounting opening for arranging the pressure reducer is formed in the assembly side surface; the pressure reducer mounting port, the visual window mounting port and the manual compensation valve mounting port are kept at the same horizontal position, the visual window can be in contact with a shifting rod which is arranged on the pressure reducer and used for adjusting the oxygen outlet flow of the oxygen bottle after the oxygen bag body is gradually wizened and performs shifting action along with the wizened state after contact, and the visual window is detachably connected to the visual window mounting port.

Description

Technical Field

[0001] The utility model relates to the technical field of self-rescuers, in particular to an oxygen bag used in self-rescuers. Background Art

[0002] The self-rescuer is a self-rescue measure for workers in dangerous situations in mines. It can provide better rescue measures when danger occurs underground in mines. Among them, the pressure reducing valve plays a particularly important role as a device for controlling the oxygen flow.

[0003] Oxygen will show color under high pressure. At present, the surfaces of existing oxygen bags have colors, i.e. yellow or blue. In this way, the color of oxygen shown under high pressure appears as a shadow under the reflection of the surface color of the oxygen bag. The amount of oxygen can only be observed by observing through the shadow. However, considering that when the oxygen in the oxygen bag is exhausted, oxygen replenishment is required in time, that is, it is achieved by opening the manual valve of the pressure reducer arranged in the oxygen bag and connected to the oxygen cylinder at the same time. The pressure reducer has two manual valves, one is quantitative and the other is adjustable. When the adjustable manual valve is located in the bag, the user needs to manually turn its lever through the oxygen bag. The lever needs to be kept in the turned state to achieve large-flow replenishment. After the disconnection, the oxygen replenishment efficiency will be reduced, which causes the user to keep turning the valve, which is too cumbersome. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides an oxygen bag applied to a self-rescuer to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve the technical problem: the oxygen bag used for the self-rescuer comprises an oxygen bag body, the oxygen bag body comprises an assembly front, an assembly back and an assembly side, the assembly front is provided with an oxygen inhalation nozzle, and the oxygen bag body is arranged at a shell connecting port of a shell for placing an oxygen cylinder, the assembly back is provided with a visual window mounting port for arranging a visual window, a manual valve mounting port for arranging a manual valve of a pressure reducer and an exhaust valve connecting port for arranging an exhaust valve, the assembly side is provided with a pressure reducer mounting port for arranging a pressure reducer, the pressure reducer mounting port, the visual window mounting port and the manual valve mounting port are kept at the same horizontal position, the visual window can come into contact with a lever on the pressure reducer for adjusting the oxygen outlet flow rate of the oxygen cylinder after the oxygen bag body is gradually deflated and performs a toggling action as it deflates after the contact, and the visual window is detachably connected to the visual window mounting port.

[0006] For further improvement, a connecting frame which is glued to the back of the assembly is provided in the installation opening of the viewing window, and the connecting frame has an enclosing wall and an installation space which is confined within the enclosing wall and allows the viewing window to be installed therein, and the enclosing wall abuts against the viewing window in the direction opposite to the assembly direction.

[0007] To be further improved, the connecting frame includes a T-shaped plug-in portion and a gluing portion. The plug-in portion is inserted into the viewing window mounting port and is used to define the final assembly position of the connecting frame on the back side of the assembly. The gluing portion is fitted with the back side of the assembly after the plug-in portion is inserted into the viewing window mounting port, and the gluing portion is completely adhered to the back side of the assembly through gluing. The enclosing wall and the installation space exist on both the plug-in portion and the gluing portion.

[0008] For further improvement, the enclosed wall is provided with an inner slot extending along its circumferential trajectory, and the outer surface of the viewing window in the circumferential direction is provided with an insert strip extending along its circumferential trajectory, and the insert strip is inserted into the inner slot.

[0009] Further improvement, the thickness of the insert is greater than the thickness of the inner slot and smaller than the thickness of the visual window, and the cross-sectional area of the enclosed wall is smaller than the cross-sectional area of the visual window.

[0010] Further improvement, the connecting frame is made of rubber material.

[0011] Further improvement, the viewing window is made of acrylic.

[0012] The beneficial effects of the utility model are:

[0013] The viewing window of the utility model can not only be used to observe the toggling amplitude of the lever of the pressure reducer, but also can be used as a component for toggling the lever, so that the flow of oxygen out of the oxygen cylinder can be actively adjusted after the oxygen bag body is deflated, and the oxygen bag body can be quickly oxygenated, so as to meet the oxygen breathing needs of the user, and no manual operation is required. At the same time, the detachable setting of the viewing window can replace and maintain the severely worn viewing window, so as to ensure the observation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the front side of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the back side of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the back of the utility model, wherein the viewing window, the connecting frame and the viewing window mounting opening are in an exploded state;

[0017] Figure 4 For this utility model Figure 3 A partial enlarged schematic diagram of part A;

[0018] Figure 5 For this utility model Figure 3 A partial enlarged schematic diagram of part B. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Referring to the accompanying drawings: the oxygen bag used for the self-rescuer comprises an oxygen bag body 1, the oxygen bag body 1 having an assembly front 11, an assembly back 12, and an assembly side 13, the assembly front 11 is provided with an oxygen inhalation nozzle 2, and the oxygen bag body 1 is arranged at a shell connecting port 3 of a shell for placing an oxygen cylinder, the assembly back 12 is provided with a visual window mounting port 5 for arranging a visual window 4, a hand-made valve mounting port 6 for arranging a hand-made valve of a pressure reducer, and an exhaust valve connecting port 7 for arranging an exhaust valve, the assembly side 13 is provided with a pressure reducer mounting port 8 for arranging a pressure reducer, the pressure reducer mounting port 8, the visual window mounting port 5, and the hand-made valve mounting port 6 are maintained at the same horizontal position, the visual window 4 can come into contact with the lever on the pressure reducer for adjusting the oxygen output flow rate of the oxygen cylinder after the oxygen bag body 1 is gradually deflated and can be toggled as it deflates after contact, and the visual window 4 can be detachably connected to the visual window mounting port 5. The principle of the utility model is that the oxygen bag body 1 is connected with the shell, the visual window 4, the pressure reducer, the manual supplement valve of the pressure reducer, and the exhaust valve through various installation ports, and is kept at the same horizontal position through the pressure reducer installation port 8 and the visual window installation port 5, so that when the pressure reducer is installed in the pressure reducer installation port 8, the position of the lever can be kept relative to the visual window 4, so that after the oxygen bag body 1 is deflated, the visual window 4 can be used as an operating component to push the lever, and the lever is used to adjust the flow rate of oxygen coming out of the oxygen cylinder, so that automatic adjustment of oxygen supplementation can be achieved, and the oxygen The more the bag body 1 is deflated, the greater the force of the lever is, and the greater the oxygen flow rate is. The oxygen bag body 1 is quickly filled with oxygen to meet the user's oxygen inhalation needs, and no manual operation is required. At the same time, the detachable setting of the visual window 4 is considered that the visual window 4 is also used to observe the amplitude of the lever placed in the oxygen bag body 1, but the surface of the lever is bound to wear after contact, which will affect the observation. Therefore, it is necessary to replace and maintain the severely worn visual window 4 to ensure the observation effect. The user holds the oxygen inhalation nozzle 2 in his mouth to inhale oxygen. The installation ports for connecting the housing, the pressure reducer, the manual valve of the pressure reducer, and the exhaust valve are all provided with connecting sleeves made of rubber material, so that these components can be sealed.

[0021] A connection frame 9 is provided inside the visual window installation opening 5 and is glued to the assembly back surface 12 at the same time. The connection frame 9 has an enclosing wall 91 and an installation space 92 defined within the enclosing wall 91 and allowing the visual window 4 to be installed therein. The enclosing wall 91 abuts against the visual window 4 in the direction opposite to the assembly direction, that is, the connection frame 9 provides a definite installation position for the visual window 4 and serves as a connecting component to achieve detachable connection with the visual window 4. When the visual window 4 reaches the installation space 92 of the connection frame 9, the enclosing wall 91 plays a blocking role and abuts against the visual window 4 in the direction opposite to the assembly direction, thereby preventing the visual window 4 from returning along the original path and completing the assembly state of the visual window 4 and the connection frame 9 at the final assembly position. In one implementation case, the inner frame wall of the connection frame 9 forms the enclosing wall 91, and the space allowing the connection frame 9 to be placed therein forms the installation space 92.

[0022] The connection frame 9 includes a T-shaped insertion part 93 and a gluing part 94. The insertion part 93 is inserted into the visual window installation opening 5 and is used to define the final assembly position of the connection frame 9 on the assembly back surface 12. After the insertion part 93 is inserted into the visual window installation opening 5, the gluing part 94 is attached to the assembly back surface 12 and is completely adhered to the assembly back surface 12 through gluing. The enclosing wall 91 and the installation space 92 exist in the insertion part 93 and the gluing part 94 at the same time. Such a setting can provide a definite assembly position for the connection frame 9, that is, by inserting the insertion part 93 into the visual window installation opening 5, no position adjustment is required when setting the connection frame 9 in the visual window installation opening 5, thereby improving the efficiency. At the same time, due to the T-shaped configuration, there is a dimensional difference between the insertion part 93 and the gluing part 94, that is, the cross-sectional area of the insertion part 93 is smaller than the cross-sectional area of the gluing part 94. In this way, the gluing part 94 has a part that can be attached to the assembly back surface 12, and hot melt adhesive is applied to the attached part to achieve gluing between the gluing part 94 and the assembly back surface 12, so that the connection frame 9 is stably set on the oxygen bag body 1.

[0023] An inner slot 91-1 extending along its circumferential trajectory is provided on the enclosing wall 91. An insertion strip 41 extending along its circumferential trajectory is provided on the outer surface of the visual window 4 in the circumferential direction. The insertion strip 41 is inserted into the inner slot 91-1. Such a setting can ensure the stable connection between the visual window 4 and the connection frame 9 and limit the visual window 4 in a fixed position.

[0024] The thickness of the insert 41 is greater than the thickness of the inner slot 91-1 and smaller than the thickness of the visible window 4, the cross-sectional area of the enclosing wall 91 is smaller than the cross-sectional area of the visible window 4, and the thickness of the insert 41 is greater than the thickness of the inner slot 91-1, so that the insert 41 enters the inner slot 91-1 in an extruded manner, which can not only ensure the connection stability, but also achieve a sealed connection between the connection frame 9 and the visible window 4, and the thickness of the insert 41 is less than the thickness of the visible window 4, so that after the insert 41 enters the inner slot 91-1, the circumferential outer surface of the visible window 4 can fit with the enclosing wall 91, and combined with the cross-sectional area of the enclosing wall 91 being smaller than the cross-sectional area of the visible window 4, the circumferential outer surface of the visible window 4 will generate an extrusion force after fitting with the enclosing wall 91, thereby avoiding the generation of a fitting gap, further ensuring the sealing.

[0025] The connecting frame 9 is made of rubber material. Such a configuration allows the inner slot 91-1 to expand when the insert strip 41 is inserted. After the expansion, a reaction force is generated under the ability of self-recovery to resist the expansion, that is, a squeezing force is generated on the insert strip 41, so that the insert strip 41 is stably set in the inner slot 91-1, and the circumferential outer surface of the visible window 4 can adapt to the cross-sectional area of the visible window 4 by deformation after being fitted with the enclosing wall 91, and the circumferential outer edge of the visible window 4 can also be sunken into the connecting frame 9 to avoid the formation of a fitting gap, thereby further ensuring the sealing.

[0026] The visual window 4 is made of acrylic material. Such a configuration makes the visual window 4 have good hardness, and the pushing effect is good when the lever of the oxygen cylinder is pushed.

[0027] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An oxygen bag applied to a self-rescuer, comprising an oxygen bag body (1), characterized in that: The oxygen bag body (1) has an assembled front surface (11), an assembled back surface (12), and an assembled side surface (13). An oxygen inhalation nozzle (2) and a housing connection port (3) for setting the oxygen bag body (1) on the housing for placing an oxygen cylinder are provided on the assembled front surface (11). A viewing window mounting opening (5) for setting a viewing window (4), a hand filling valve mounting opening (6) for setting the hand filling valve of a pressure reducer, and an exhaust valve connection port (7) for setting an exhaust valve are provided on the assembled back surface (12). A pressure reducer mounting opening (8) for setting a pressure reducer is provided on the assembled side surface (13). The pressure reducer mounting opening (8), the viewing window mounting opening (5), and the hand filling valve mounting opening (6) are kept at the same horizontal position. After the oxygen bag body (1) gradually deflates, the viewing window (4) can come into contact with the lever for adjusting the oxygen output flow rate of the oxygen cylinder on the pressure reducer and make a toggling action following the deflation after contact, and the viewing window (4) is detachably connected to the viewing window mounting opening (5).

2. The oxygen bag applied to the self-rescuer according to claim 1, characterized in that: A connection frame (9) that is simultaneously glued to the assembled back surface (12) is provided in the viewing window mounting opening (5). The connection frame (9) has an enclosing wall (91) and an installation space (92) defined within the enclosing wall (91) and allowing the viewing window (4) to be installed therein. The enclosing wall (91) abuts against the viewing window (4) in the direction opposite to the assembly direction.

3. The oxygen bag applied to the self-rescuer according to claim 2, wherein: The connection frame (9) includes a T-shaped insertion part (93) and a gluing part (94). The insertion part (93) is inserted into the viewing window mounting opening (5) and is used to define the final assembly position of the connection frame (9) on the assembled back surface (12). After the insertion part (93) is inserted into the viewing window mounting opening (5), the gluing part (94) fits with the assembled back surface (12) and is completely adhered to the assembled back surface (12) through gluing. The enclosing wall (91) and the installation space (92) exist in both the insertion part (93) and the gluing part (94) at the same time.

4. The oxygen bag applied to the self-rescuer according to claim 3, characterized in that: An inner slot (91-1) extending along its circumferential track is provided on the enclosing wall (91). An insertion bar (41) extending along its circumferential track is provided on the outer surface of the viewing window (4) in the circumferential direction. The insertion bar (41) is inserted into the inner slot (91-1).

5. The oxygen bag applied to the self-rescuer according to claim 4, characterized in that: The thickness of the insertion bar (41) is greater than the thickness of the inner slot (91-1) and less than the thickness of the viewing window (4). The cross-sectional area of the enclosing wall (91) is less than the cross-sectional area of the viewing window (4).

6. The oxygen bag applied to a self-rescuer according to claim 2, characterized in that: The connection frame (9) is made of rubber material.

7. The oxygen bag applied to the self-rescuer according to claim 2, characterized in that: The viewing window (4) is made of acrylic material.

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