CN219440472U - Novel air supply valve of air respirator - Google Patents
Novel air supply valve of air respirator Download PDFInfo
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- CN219440472U CN219440472U CN202320770412.8U CN202320770412U CN219440472U CN 219440472 U CN219440472 U CN 219440472U CN 202320770412 U CN202320770412 U CN 202320770412U CN 219440472 U CN219440472 U CN 219440472U
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Abstract
The utility model provides an air supply valve of a novel air respirator, wherein a valve rod and the interior of a valve tube are provided with gaps; the valve rod reset spring is arranged in the valve tube, the left end of the valve rod reset spring is propped against the right end of the valve rod seat, and the left end of the valve rod reset spring is propped against the valve rod; the diaphragm component is arranged on the shell; the upper end of the lever is closely adjacent to the inhalation membrane assembly; the lower end is provided with two symmetrical pushing feet; the two sides of the valve tube are provided with lever rotating grooves; symmetrical stress bosses are arranged on two sides of the valve rod; two pushing feet of the lever are inserted into the rotating groove of the valve tube and can rotate in the rotating groove; and two pushing feet of the lever are attached to the right side of the stress boss of the valve rod. The valve rod has the advantages that the valve rod is in a near-sighted suspension state, so that the resistance of breathing is greatly reduced; the respiratory resistance of the air supply valve can be adjusted; and has the functions of gas saving and safety emergency.
Description
Technical Field
The utility model relates to an air supply valve of a novel air respirator.
Background
The air supply valve is a component for decompressing the medium-pressure air output by the decompressing device to the pressure which can be breathed by the human body according to the inhalation amount of the wearer so as to breathe by the wearer. The size of the diaphragm of the air supply valve, which is currently in use, affects the respiratory resistance. The large diaphragm can better reduce the respiratory resistance, but the large diaphragm can also cause the overlarge air supply valve, thereby affecting the visual field and increasing the weight of the air supply valve; and respiratory resistance is not adjustable.
Disclosure of Invention
The utility model provides the novel air supply valve of the air respirator, and the valve rod is in a near-sighted suspension state, so that the resistance of breathing is greatly reduced; the respiratory resistance of the air supply valve can be adjusted; the solar energy saving device has the functions of saving solar energy and safety emergency; on the premise of the same size, the area of the membrane is increased; to overcome the disadvantages of the prior art.
The utility model provides an air supply valve of a novel air respirator, which comprises a shell 100, a valve tube 200, a valve seat 300, a valve rod seat 400, a valve rod 500, a valve rod return spring 600, a diaphragm assembly 700 and a lever 800; wherein the valve tube 200 is fixedly connected with the housing 100; the side wall of the valve tube 200 is provided with a vent hole 210, and the vent hole 210 is communicated with the air outlet hole of the shell 100; the valve seat 300 is fixed at the right end of the central hole of the valve tube 200; the valve rod seat 400 is arranged at the left end of the central hole of the valve tube 200 and can be connected with the valve rod seat in a sliding way; the valve rod 500 is arranged in the central hole of the valve tube 200, and can be attached and sealed with the left end of the valve seat 300; the valve stem 500 has a gap with the inside of the valve tube 200; the valve rod return spring 600 is arranged in the valve tube 200, the left end of the valve rod return spring 600 is propped against the right end of the valve rod seat 400, and the right end is propped against the valve rod 500; the diaphragm assembly 700 is disposed on the housing 100; the upper end of lever 800 is immediately adjacent to the inhalation membrane assembly 710; the lower end is provided with two symmetrical pushing feet 810; the valve tube 200 has lever rotation grooves 230 at both sides thereof; the valve rod 500 has symmetrical stress bosses 520 on both sides; the two pushing legs 810 of the lever 800 are inserted into the rotation groove 230 of the valve tube 200 and can rotate in the rotation groove 230; and the two pushing legs 810 of the lever 800 are attached to the right side of the force receiving boss 520 of the valve stem 500.
Further, the present utility model provides a novel air supply valve for an air respirator, which may also have the following features: the diaphragm assembly 700 includes: inhalation membrane assembly 710, membrane cover 720, membrane positive pressure spring 730; the inhalation membrane assembly 710 is fixedly connected to the housing 100; the diaphragm cover 720 is fixedly connected with the housing 100, and the diaphragm cover 720 covers the inhalation diaphragm assembly 710; the diaphragm positive pressure spring 730 has one end that rests against the inspiratory diaphragm assembly 710 and the other end that rests against the diaphragm cover 720.
Further, the present utility model provides a novel air supply valve for an air respirator, which may also have the following features: the inhalation membrane assembly 710 comprises: an oval connecting suction diaphragm 711 and a circular center suction diaphragm 712; the central inhalation membrane 712 is located in the middle position of the connection inhalation membrane 711; the central inhalation membrane 712 is hermetically connected with the connecting inhalation membrane 711 as a whole; the circumference of the connecting air suction diaphragm 711 is provided with a semicircular sealing strip 711a which is embedded into a sealing groove corresponding to the shell; the membrane cover 720 is fixedly connected with the shell 100 by interference fit, and the membrane cover 720 covers the air suction membrane assembly 710 and is circumferentially pressed outside the semicircular sealing strip 711 a.
Further, the present utility model provides a novel air supply valve for an air respirator, which may also have the following features: the diaphragm assembly 700 further includes: emergency air supply button 740, emergency air supply button return spring 750; the lower end of the emergency air supply button 740 is clamped in the central hole of the diaphragm cover 720; the emergency air supply button return spring 750 has one end pushed against the emergency air supply button 740 and the other end pushed against the outside of the diaphragm cover 720.
Further, the present utility model provides a novel air supply valve for an air respirator, which may also have the following features: also included is a throttle assembly 900; the throttle assembly includes: a throttle button 910, a throttle return spring 920; the throttle button 910 is slidably connected with the left end of the housing 100 and protrudes outside the housing 100; the left end of the valve rod 500 is slidably connected to the throttle button 910; one end of the throttle return spring 920 is propped against the throttle button 910, and the other end is propped against the valve rod seat 400; the lever 800 is provided with a throttle elastic lock 801; the throttle elastic lock 801 is fixed on the housing 100; the lever 800 has throttle fixing bosses 820 at both sides; the damper securing boss 820 of the lever 800 can be embedded within the damper elastic latch 801.
Further, the present utility model provides a novel air supply valve for an air respirator, which may also have the following features: the throttle assembly also includes a throttle limit collar 930; the throttle limit collar 930 is located on the housing 100, the throttle limit collar 930 is partially clamped on the circumference of the throttle button 910, and partially protrudes to be capable of pushing against the housing 100, so as to limit the outward limit position of the throttle return spring 920.
Further, the present utility model provides a novel air supply valve for an air respirator, which may also have the following features: the left end of the valve seat 300 is provided with a valve seat adjusting screw 310; the valve tube 200 has a valve tube internal thread 220 therein, and the valve seat adjusting screw 310 is engaged with the valve tube internal thread 220 of the valve tube 200; the front end of the valve seat 300 passes through the center hole of the valve seat adjusting screw 310 and then is attached to the end surface of the valve stem 500.
Further, the present utility model provides a novel air supply valve for an air respirator, which may also have the following features: the valve rod 500 is in a diversion type shape; the valve stem 500 has a central bore.
Further, the present utility model provides a novel air supply valve for an air respirator, which may also have the following features: the tail of the left end of the valve rod 500 extends into a central hole of the valve rod seat 400, which does not penetrate.
Drawings
FIG. 1 is a schematic view showing a half-sectional structure of an air supply valve of a novel air respirator of an embodiment.
Fig. 2 is a schematic view of the structure of the valve stem in the case where the gas supply passage is opened in the embodiment.
FIG. 3 is a schematic diagram of the structure of a diaphragm assembly in an embodiment.
Fig. 4 is a perspective view showing the connection relationship between the valve tube and the lever in the embodiment.
Fig. 5 is a perspective view of a valve stem in an embodiment.
Fig. 6 is a perspective view of the lever in an embodiment.
Detailed Description
The utility model is further described below with reference to the drawings and specific embodiments.
Examples
In this embodiment, the air supply valve of the novel air respirator comprises: the valve comprises a shell 100, a valve tube 200, a valve seat 300, a valve rod seat 400, a valve rod 500, a valve rod return spring 600, a diaphragm assembly 700 and a lever 800.
The valve tube 200 is fixedly connected with the housing 100, and in this embodiment, the valve tube 200 and the housing 100 are fixedly connected by interference fit. The right end of the valve tube 200 extends out of the housing 100 and is provided with connecting threads 220 which can be meshed with the internal threads of the gas pipe 1 to realize the detachable connection of the two. An O-ring is disposed in the circumferential groove of the valve tube 200 to seal between the valve tube 200 and the housing 100. The side wall of the valve tube 200 is provided with a vent hole 210, the vent hole 210 is communicated with the air outlet hole 120 of the shell 100, and the air outlet hole 120 is fixedly and hermetically connected with the air suction component 2.
The valve seat 300 is fixed at the right end of the central hole of the valve tube 200, and the valve seat and the valve tube are fixedly connected by interference fit. An O-shaped sealing ring is arranged in the circumferential groove of the valve seat 300, so that the sealing between the valve seat 300 and the valve tube 200 is realized.
Preferably, in the present embodiment, a valve seat adjusting screw 310 is disposed at the left end of the valve seat 300. The corresponding valve tube 200 has a valve tube internal thread 220 therein, and the valve seat adjusting screw 310 is engaged with the valve tube internal thread 220 of the valve tube 200. The front end of the valve seat 300 passes through the center hole of the valve seat adjusting screw 310 and then is attached to the end surface of the valve stem 500. The valve seat adjusting screw 310 can adjust the axial depth of the valve seat 300 in the valve tube 200 to ensure the sealing performance.
In this embodiment, the valve stem 400 is disposed at the left end of the central hole of the valve tube 200, and the valve stem are slidably connected. An O-ring is disposed in the circumferential groove of the valve stem 400 to seal between the valve stem 400 and the valve tube 200.
The right end of the valve stem 500 has a valve stem seal cap 510. The valve stem 500 is disposed in the central hole of the valve tube 200, and the valve stem sealing cover 510 may be seated with the left end of the valve seat 300. The valve stem 500 has a clearance with the inside of the valve tube 200. Preferably, the valve stem 500 is shaped as a flow guide. In this embodiment, the valve stem 500 has a central bore that reduces the weight of the valve stem 500 and allows air flow into the valve stem 500.
Preferably, the left end tail of the valve stem 500 extends into a non-penetrating central bore of the valve stem block 400. An O-ring is disposed in a groove at the end of the valve rod 500 to seal between the valve rod 500 and the valve tube 200.
A valve stem return spring 600 is disposed within the valve tube 200. The left end of the valve stem return spring 600 abuts against the right end of the valve stem block 400, and the right end abuts against the valve stem 500.
The diaphragm assembly 700 includes: an inhalation membrane assembly 710, a membrane cover 720, a membrane positive pressure spring 730. In this embodiment, the inhalation membrane assembly 710 comprises: oval connecting the inhalation piece 711 and the circular central inhalation piece 712. The central inhalation membrane 712 is located in an intermediate position to the connection inhalation membrane 711. The central inhalation membrane 712 is hermetically connected to the connecting inhalation membrane 711 as a single piece. The circumference of the connecting air suction diaphragm 711 is provided with a semicircular sealing strip 711a which is embedded in a sealing groove corresponding to the shell. The membrane cover 720 is fixedly connected with the shell 100 by interference fit, and the membrane cover 720 covers the air suction membrane assembly 710 and is circumferentially pressed outside the semicircular sealing strip 711 a. The diaphragm positive pressure spring 730 has one end that rests against the inspiratory diaphragm assembly 710 and the other end that rests against the diaphragm cover 720. At the same size, the inspiratory diaphragm assembly 710 increases the size of the diaphragm of the existing supply valve by 1.8 times, and the respiratory resistance can be effectively reduced and the supply flow can be improved while ensuring the positive pressure.
In this embodiment, the lever 800 is generally H-shaped. The upper end of the H-shaped lever 800 is immediately below the inhalation membrane assembly 710; the lower end has two pushing legs 810. The valve tube 200 has lever rotation grooves 230 at both sides. The valve stem 500 has symmetrical force-receiving bosses 520 on both sides.
The two pushing legs 810 of the H-shaped lever 800 are inserted into the rotation groove 230 of the valve tube 200 and are rotatable in the rotation groove 230. The two pushing legs 810 of the H-shaped lever 800 are also attached to the right side of the force receiving boss 520 of the valve stem 500.
Novel air supply valve working principle of air respirator:
in the initial state, the right end of the valve rod 500 is tightly attached to the end surface of the valve rod seat 400 under the action of the valve rod return spring 600, and the air supply channel is closed, so that the air in the air delivery pipe 1 cannot enter the air supply valve.
When the user inhales, the gas in the gas supply valve is sucked away, and the gas pressure is reduced; at this time, the diaphragm positive pressure spring 730 presses the suction diaphragm assembly 710 toward the upper end of the lever 800, thereby driving the lever 800 to rotate around the valve tube 200, and the pushing foot 810 pushes the force-bearing boss 520, thereby driving the valve stem 500 to move leftward. The sealing end surface of the valve stem 500 is separated from the end surface of the valve stem block 400, and the air supply passage is opened. The gas in the gas pipe 1 passes through the center hole of the valve rod seat 400, enters the gap between the valve pipe 200 and the valve rod 500, and then enters the gas outlet hole 120 from the vent hole 210 on the side wall of the valve pipe 200, so as to realize gas supply.
When the user stops inhaling, the gas pipe 1 is supplied into the gas supply valve to increase the internal gas pressure, the inhalation membrane assembly 710 is lifted up, and the lever 800 loses the driving force. Under the action of the valve rod return spring 600, the valve rod 500 is returned, the right end is clung to the end face of the valve rod seat 400, and the air supply channel is closed.
Preferably, in this embodiment, the diaphragm assembly 700 further includes: emergency air supply button 740, emergency air supply button return spring 750. The lower end of the emergency air supply button 740 is caught in the central hole of the diaphragm cover 720. The emergency air supply button return spring 750 has one end pushed against the emergency air supply button 740 and the other end pushed against the outside of the diaphragm cover 720.
In case of failure of the air supply valve of the novel air respirator, when automatic and normal air supply is impossible, the emergency air supply button 740 is pressed, the upper end of the lever 800 is stressed, so that the valve rod 500 is pushed to move towards the left end by rotating anticlockwise around the valve tube 200, an air supply channel is opened, artificial mechanical air supply is realized, and safety is ensured.
Preferably, the air supply valve of the new air respirator also includes a damper assembly 900. The throttle assembly includes: a throttle button 910, a throttle return spring 920, and a throttle limit collar 930.
The throttle button 910 is slidably coupled to the left end of the housing 100 and protrudes outside the housing 100. An O-ring is disposed in the circumferential groove of the throttle button 910 to seal the throttle button 910 to the housing 100.
The left end of the valve stem 500 is slidably coupled to the throttle button 910. In this embodiment, the outer circle of the left end of the valve rod 500 is matched with the central hole of the throttle button 910, and the left end of the valve rod 500 can slide in the central hole of the throttle button 910.
The throttle return spring 920 is disposed within the central bore of the throttle button 910 with one end abutting the throttle button 910 and the other end abutting the valve stem block 400. The throttle limit collar 930 is located on the housing 100, the throttle limit collar 930 is partially clamped on the circumference of the throttle button 910, and partially protrudes to be capable of pushing against the housing 100, so as to limit the outward limit position of the throttle return spring 920.
The lever 800 is provided with a throttle spring catch 801. The damper elastic latch 801 is fixed to the housing 100. The H-shaped lever 800 has throttle fixing bosses 820 at both sides. The damper securing boss 820 of the lever 800 can be embedded within the damper elastic latch 801.
When the air supply valve of the novel air respirator is not used, the throttle button 910 is pressed, and at the moment, the throttle return spring 920 is pressed, so that the valve rod seat 400 and the valve rod 500 move to the right end, and at the moment, the stress boss 520 on the valve rod 500 pushes the lever 800 into the throttle elastic lock catch 801 to lock the throttle of the lever 800.
The embodiments described above are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (9)
1. An air supply valve of a novel air respirator, which is characterized in that: comprises a shell (100), a valve tube (200), a valve seat (300), a valve rod seat (400), a valve rod (500), a valve rod return spring (600), a diaphragm assembly (700) and a lever (800);
wherein the valve tube (200) is fixedly connected with the housing (100); a vent hole (210) is formed in the side wall of the valve tube (200), and the vent hole (210) is communicated with the air outlet hole of the shell (100);
the valve seat (300) is fixed at the other end of the central hole of the valve tube (200);
the valve rod seat (400) is arranged at one end of the central hole of the valve tube (200) and can be connected with the valve rod seat in a sliding way;
the valve rod (500) is arranged in the central hole of the valve tube (200), and can be jointed and sealed with one end of the valve seat (300); -said valve stem (500) having a clearance from the interior of said valve tube (200);
the valve rod reset spring (600) is arranged in the valve tube (200), one end of the valve rod reset spring (600) is propped against the other end of the valve rod seat (400), and the other end is propped against the valve rod (500);
the diaphragm assembly (700) is disposed on the housing (100);
one end of the lever (800) is adjacent to the diaphragm assembly (700); the lower end is provided with two symmetrical pushing feet (810);
both sides of the valve tube (200) are provided with lever rotation grooves (230); symmetrical stress bosses (520) are arranged on two sides of the valve rod (500);
two pushing legs (810) of the lever (800) are inserted into the rotating groove (230) of the valve tube (200) and rotatable in the rotating groove (230); and the two pushing feet (810) of the lever (800) are attached to the other side of the stress boss (520) of the valve rod (500).
2. The air supply valve of the novel air respirator of claim 1, wherein:
wherein the diaphragm assembly (700) comprises: an inhalation membrane assembly (710), a membrane cover (720), a membrane positive pressure spring (730);
the inhalation membrane assembly (710) is fixedly connected with the housing (100);
the membrane cover (720) is fixedly connected with the shell (100), and the membrane cover (720) covers the air suction membrane component (710);
one end of the diaphragm positive pressure spring (730) is propped against the inhalation diaphragm assembly (710), and the other end is propped against the diaphragm cover (720).
3. The air supply valve of the novel air respirator of claim 2, wherein:
wherein the inhalation membrane assembly (710) comprises: an oval connecting inhalation membrane (711) and a circular central inhalation membrane (712);
-said central getter membrane (712) is positioned in a middle position of said connecting getter membrane (711); the central air suction diaphragm (712) is connected with the connecting air suction diaphragm (711) in a sealing way to form a whole; the circumference of the connecting air suction diaphragm (711) is provided with a semicircular sealing strip (711 a) which is embedded into a sealing groove corresponding to the shell;
the membrane cover (720) is fixedly connected with the shell (100) by interference fit, the membrane cover (720) covers the air suction membrane component (710), and the circumference of the membrane cover is pressed outside the semicircular sealing strip (711 a).
4. The air supply valve of the novel air respirator of claim 2, wherein:
wherein the diaphragm assembly (700) further comprises: an emergency air supply button (740) and an emergency air supply button return spring (750);
the lower end of the emergency air supply button (740) is clamped in the central hole of the diaphragm cover (720); one end of an emergency air supply button reset spring (750) is propped against the emergency air supply button (740), and the other end is propped against the outer side of the diaphragm cover (720).
5. The air supply valve of the novel air respirator of claim 1, wherein:
further comprising a throttle assembly (900); the throttle assembly includes: a throttle button (910) and a throttle return spring (920);
the throttle button (910) is in sliding connection with one end of the shell (100) and protrudes out of the shell (100);
one end of the valve rod (500) is in sliding connection with the throttle button (910);
one end of the throttle return spring (920) is propped against the throttle button (910), and the other end is propped against the valve rod seat (400);
the lever (800) is provided with a throttle elastic lock catch (801); the throttle elastic lock catch (801) is fixed on the shell (100);
two sides of the lever (800) are provided with air-saving fixing bosses (820); the throttle fixing boss (820) of the lever (800) may be embedded within the throttle resilient latch (801).
6. The air supply valve of the novel air respirator of claim 5, wherein:
the throttle assembly further includes a throttle limit collar (930);
the throttle limiting collar (930) is positioned on the shell (100), the throttle limiting collar (930) is partially clamped on the circumference of the throttle button (910), and partially protrudes to be propped against the shell (100) to limit the outward limit position of the throttle return spring (920).
7. The air supply valve of the novel air respirator of claim 1, wherein:
wherein one end of the valve seat (300) is provided with a valve seat adjusting screw (310); the valve tube (200) is internally provided with valve tube internal threads (220), and the valve seat adjusting screw (310) is meshed with the valve tube internal threads (220) of the valve tube (200);
the front end of the valve seat (300) passes through the central hole of the valve seat adjusting screw (310) and then is attached to the end face of the valve rod (500).
8. The air supply valve of the novel air respirator of claim 1, wherein:
wherein the valve rod (500) is in a diversion type shape; the valve stem (500) has a central bore.
9. The air supply valve of the novel air respirator of claim 1, wherein:
the tail part of one end of the valve rod (500) extends into a central hole which is not penetrated by the valve rod seat (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320770412.8U CN219440472U (en) | 2023-04-10 | 2023-04-10 | Novel air supply valve of air respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320770412.8U CN219440472U (en) | 2023-04-10 | 2023-04-10 | Novel air supply valve of air respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219440472U true CN219440472U (en) | 2023-08-01 |
Family
ID=87412599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320770412.8U Active CN219440472U (en) | 2023-04-10 | 2023-04-10 | Novel air supply valve of air respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219440472U (en) |
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2023
- 2023-04-10 CN CN202320770412.8U patent/CN219440472U/en active Active
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