A micro-resistance breathing regulator

Abstract

The utility model provides a kind of micro-resistance breathing regulator, including upper shell, lower shell, valve piece, soft glue valve piece and support column, upper shell is hollow inside, top is equipped with oxygen extraction mouth, side is equipped with air inlet pipe, air inlet pipe is equipped with the buffer area and air inlet area separated by sealing plate, the middle part of sealing plate is equipped with air inlet passage, lower shell bottom is equipped with air supplement hole, inside is equipped with placement ring, soft glue valve piece is located above placement ring, support column is placed in the middle part of soft glue valve piece, push rod is connected in the side surface of valve piece, the rod of push rod is equipped with limit piece, spring is equipped between limit piece and valve piece, valve piece is arranged in air inlet area, push rod is arranged in the top of support column after passing through air inlet passage, one end of spring is against the sealing plate of buffer area side, the other end is against the side surface of limit piece. The utility model utilizes the gravity effect of support column itself and the effect of spring to exert the pressure of push rod under pressing, so that support column can be quickly reset to cut off oxygen passage after stopping oxygen absorption, avoid too much oxygen to be inhaled.

Description

Technical Field

[0001] This utility model belongs to the technical field of respiratory protection devices, and specifically relates to a low-resistance respiratory regulator. Background Technology

[0002] A breathing regulator is used to control the flow rate or pressure of a gas (oxygen). It typically has an inlet for receiving the fluid, an outlet for providing the fluid, and a sensing element or membrane for measuring and regulating the pressure in the fluid.

[0003] Currently, most respiratory regulators in the medical device field are diaphragm regulators. When the diaphragm in the regulator comes into contact with air, a pressure difference is generated inside and outside, which pushes the diaphragm to move. However, current respiratory regulators have relatively high oxygen intake resistance, resulting in a poor oxygen intake experience, and the diaphragm has a short lifespan and is prone to rupture after repeated use. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a low-resistance breathing regulator that utilizes gravity to quickly lower the soft membrane film and close the valve, thereby improving the oxygen inhalation experience.

[0005] This utility model is achieved through the following technical solution: A low-resistance breathing regulator includes an upper shell, a lower shell, a valve plate, a soft rubber valve plate, and a support column; The upper shell is a hollow cylinder with an oxygen extraction port at the top and an air inlet pipe on the side. The bottom of the upper shell is open, and the bottom side wall has several protruding locking blocks. The air inlet pipe has a sealing plate that divides the air inlet pipe into a buffer zone and an air inlet zone. The middle of the sealing plate has an air inlet channel that connects the buffer zone and the air inlet zone. The lower housing is hollow inside, with several air inlet holes penetrating through it at the bottom; a placement ring is provided above the air inlet holes inside the lower housing; an inverted "L" shaped locking groove is provided on the inner side wall of the lower housing, and the inverted "L" shaped locking groove matches the locking block; The soft rubber valve plate is placed above the placement ring, and the central protrusion of the soft rubber valve plate is used to place the support column; The valve plate is connected to a push rod on its side. A limit plate is provided on the rod body of the push rod. A spring is provided on the rod body between the limit plate and the valve plate. The valve plate is set in the air intake area. After the push rod passes through the air intake channel, its tail end is set at the top of the support column. One end of the spring abuts against the sealing plate on the buffer side, and the other end abuts against the side of the limit plate. The diameter of the air intake channel is larger than the diameter of the push rod.

[0006] When not in operation, the top of the support column and the air intake channel are on the same horizontal plane, and the push rod is horizontal when it is located between the support column and the air intake channel.

[0007] The working principle of this utility model is as follows: Before use, place the diaphragm valve disc on the placement ring, then place the support rod on top of the diaphragm valve disc. Next, pass the push rod through the middle of the air intake channel inside the air intake pipe of the upper housing, bringing the valve disc close to the air intake channel. Then, insert the spring from the tail end of the push rod and rotate the spring so that it passes over the limiting plate and abuts against the sealing plate and the limiting plate, thereby making the valve disc tightly adhere to the sealing plate and seal the air intake channel. Finally, screw the upper housing into the lower housing and rotate it so that the locking block screws into the inverted "L" shaped locking groove, while the tail end of the push rod is positioned on top of the support column, completing the installation.

[0008] When in use, connect the air intake pipe to the oxygen source. In the non-working state, oxygen fills the buffer zone. Under the action of oxygen pressure and spring force, the valve plate tightly presses against the air intake channel, so that the oxygen is always in the buffer and will not escape. At this time, the atmospheric pressure inside the upper shell and the atmospheric pressure inside the lower shell (the atmosphere inside the lower shell enters from the air inlet) are balanced, so that the soft rubber valve plate is in a balanced static state. The support column at the top of the soft rubber valve plate lifts the push rod and keeps the push rod in a horizontal state. When inhaling oxygen, the user inhales through the oxygen extraction port. At this time, a negative pressure is formed inside the upper shell, causing the soft rubber valve to quickly rise and lift the support column, which in turn lifts the tail of the push rod. The push rod tilts within the air intake channel, creating a passage between the valve and the sealing plate, connecting the buffer zone and the air intake zone. Oxygen enters the upper shell through the air intake channel and is inhaled by the user through the oxygen extraction port. When the user stops inhaling oxygen, the support column, under its own weight and the downward pressure exerted by the spring on the push rod, quickly falls back, pushing the top of the soft rubber valve back to its original position and restoring the push rod to a horizontal position. Under the oxygen pressure in the buffer zone, the valve is pressed tightly against the air intake channel, cutting off the oxygen passage, stopping the oxygen supply, and preventing oxygen leakage.

[0009] As a further improvement of this utility model, the top of the support column is a spherical groove, and an arc-shaped support groove is provided around the spherical groove. The tail of the push rod is provided with a limiting ball that matches the spherical groove.

[0010] A spherical groove is made at the top of the support column to connect with a limiting ball at the tail of the push rod. This allows the tail of the push rod to be placed on top of the support column during installation without shifting. At the same time, when the support column is lifted up due to oxygen intake, the limiting ball at the tail of the push rod is further restricted by the arc-shaped groove to prevent it from falling off.

[0011] As a further improvement of this utility model, the soft rubber valve plate is provided with a positioning ring around its periphery, and the bottom of the upper housing is provided with a positioning groove along its periphery, with the positioning ring matching the positioning groove.

[0012] The positioning ring and positioning groove are designed to prevent the soft rubber valve plate from shifting and shifting its position when the upper housing is screwed into the lower housing, thus ensuring that it can completely cover the lower housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes the weight of the support column itself and the downward pressure applied to the push rod by the spring to enable the support column to quickly return to its original position after oxygen inhalation stops, thereby cutting off the oxygen passage and preventing excessive oxygen from being inhaled.

[0014] 2. The structure of this utility model is simple and can be assembled without using a complicated connection structure, which facilitates later maintenance. At the same time, the support column can be set to multiple heights according to the size of the upper shell, making it convenient to replace. Attached Figure Description

[0015] Figure 1 This is an exploded view of the structure of this utility model.

[0016] Figure 2 This is a structural anatomical view of the present invention.

[0017] Figure 3 This is a cross-sectional view of the internal structure of the present invention in its non-working state.

[0018] Figure 4 This is a cross-sectional view of the internal structure of the present invention under oxygen absorption conditions.

[0019] Reference numerals: 1-Upper shell, 2-Lower shell, 3-Valve plate, 4-Soft rubber valve plate, 5-Support column, 6-Oxygen extraction port, 7-Inlet pipe, 8-Locking block, 9-Push rod, 10-Spring, 11-Limiting ball, 12-Positioning ring, 13-Inverted "L" shaped locking groove, 14-Placement ring, 15-Inlet hole, 16-Arc-shaped support groove, 17-Inlet channel, 18-Buffer zone, 19-Inlet area, 20-Spherical groove, 21-Positioning groove, 22-Limiting plate, 23-Sealing plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. In the embodiments, unless otherwise specified, the technical means used are all conventional technical means in the art. Example

[0021] like Figure 1-2 The micro-resistance breathing regulator shown includes an upper housing 1, a lower housing 2, a valve plate 3, a soft rubber valve plate 4, and a support column 5; The upper shell 1 is a hollow cylinder with an oxygen extraction port 6 at the top and an air inlet pipe 7 on the side. The bottom of the upper shell 1 is open and the bottom side wall is provided with several protruding locking blocks 8. The air inlet pipe 7 is provided with a sealing plate 23 to divide the air inlet pipe 7 into a buffer zone 18 and an air inlet zone 19. The middle part of the sealing plate 23 is provided with an air inlet channel 17 to connect the buffer zone 18 and the air inlet zone 19. The lower housing 2 is hollow inside, and has several air inlet holes 15 extending through it at the bottom; a placement ring 14 is provided above the air inlet holes 15 inside the lower housing 2; the inner side wall of the lower housing 2 is provided with an inverted "L" shaped locking groove 13, which matches the locking block 8. The soft rubber valve plate 4 is placed above the placement ring 14, and the central protrusion of the soft rubber valve plate 4 is used to place the support column 5. The valve plate 3 is connected to a push rod 9 on its side. A limiting plate 22 is provided on the rod body of the push rod 9. A spring 10 is provided on the rod body between the limiting plate 22 and the valve plate 3. The valve plate 3 is set in the air intake area 19. After the push rod 9 passes through the air intake channel 17, its tail end is set on the top of the support column 5. One end of the spring 10 abuts against the sealing plate 23 on the side of the buffer zone 18, and the other end abuts against the side of the limiting plate 22. The diameter of the air intake channel 17 is larger than the diameter of the push rod 9.

[0022] In the non-working state, the top of the support column 5 and the air intake channel 17 are on the same horizontal plane, and the push rod 9 is horizontal when it is located between the support column 5 and the air intake channel 17.

[0023] The working principle of this embodiment is as follows: Before use, place the soft diaphragm valve plate 4 on the placement ring 14, then place the support rod 5 on top of the soft diaphragm valve plate 4. Next, pass the push rod 9 through the middle of the air intake channel 17 inside the air intake pipe 7 of the upper housing 1 and bring the valve plate 3 close to the air intake channel 17. Then, insert the spring 10 from the tail end of the push rod 9 and rotate the spring 10 so that it passes over the limiting piece 22 and abuts between the sealing plate 23 and the limiting piece 22, thereby making the valve plate 3 tightly adhere to the sealing plate 23 and seal the air intake channel 17. Finally, screw the upper housing 1 into the lower housing 2 and rotate it so that the locking block 8 screws into the inverted "L" shaped locking groove 13. At the same time, the tail end of the push rod 9 is located on top of the support column 5, completing the installation.

[0024] When using, connect the air intake pipe 7 to the oxygen source, such as Figure 3 As shown, in the non-working state, oxygen fills the buffer zone 18. Under the action of oxygen pressure and the elastic force of spring 10, valve plate 3 tightly presses against the air intake channel 17, so that oxygen is always in the buffer zone 18 and will not escape. At this time, the atmospheric pressure inside the upper shell 1 and the atmospheric pressure inside the lower shell 2 (the atmosphere inside the lower shell 2 enters from the air inlet 15) are in balance, so that the soft rubber valve plate 4 is in a balanced static state. The support column 5 located on the top of the soft rubber valve plate 4 lifts the push rod 9 and keeps the push rod 9 in a horizontal state.

[0025] like Figure 4As shown, when inhaling oxygen, the user inhales oxygen through the oxygen extraction port 6. At this time, a negative pressure is formed inside the upper shell 1, the soft rubber valve plate 4 quickly rises and pushes up the support column 5, which in turn drives the tail of the push rod 9 to be lifted. The push rod 9 tilts in the air intake channel 17, and a passage is formed between the valve plate 3 and the sealing plate 23, so that the buffer zone 18 and the air intake zone 19 are connected. Oxygen enters the upper shell 1 through the air intake channel 17 and is inhaled by the user through the oxygen extraction port 6. When the user stops inhaling oxygen, under the action of the weight of the support column 5 and the downward pressure applied to the push rod 9 by the spring 10, the support column 5 quickly falls back, pushing the top of the soft rubber valve plate 4 back to its original position and restoring the push rod 9 to a horizontal position. Under the oxygen pressure in the buffer zone 18, the valve plate 3 is tightly pressed against the air intake channel 17, the oxygen passage is cut off, the oxygen supply stops, and oxygen leakage is also avoided. Example

[0026] This embodiment is a further improvement based on Embodiment 1, as detailed below: The top of the support column 5 is a spherical groove 20, and the spherical groove 20 is surrounded by arc-shaped support grooves 16. The tail of the push rod 9 is provided with a limiting ball 11 that matches the spherical groove 20.

[0027] The working principle of this embodiment is the same as that of embodiment 1. A spherical groove 20 is opened at the top of the support column 5 to connect with the limiting ball 11 set at the tail of the push rod 9. This makes it convenient to place the tail of the push rod 9 on the top of the support column 5 during installation without displacement. At the same time, when the support column 5 is lifted by oxygen intake, the limiting ball 11 at the tail of the push rod 9 is further restricted by the arc-shaped support groove 16, preventing it from falling off. Example

[0028] This embodiment is a further improvement based on embodiment 2, as detailed below: The soft rubber valve plate 4 is provided with a positioning ring 12 around its perimeter, and the bottom of the upper housing 1 is provided with a positioning groove 21 along its perimeter, and the positioning ring 12 matches the positioning groove 21.

[0029] The working principle of this embodiment is the same as that of embodiment 2. The positioning ring 12 and the positioning groove 21 are set so that when the upper housing 1 is screwed into the lower housing 2, the soft rubber valve plate 4 will not be moved and its position will be offset so that it cannot completely cover the lower housing 2.

[0030] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The protection scope of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of this utility model.

[0031] It should be specifically noted that the orientations or positional relationships indicated by terms such as "front," "rear," "left," "right," "up," and "down" are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use. These are merely for the purpose of describing the present invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

Claims

1. A low-resistance breathing regulator, characterized in that: It includes an upper housing (1), a lower housing (2), a valve plate (3), a soft rubber valve plate (4), and a support column (5); The upper shell (1) is a hollow cylinder with an oxygen extraction port (6) at the top and an air inlet pipe (7) on the side. The upper shell (1) has an opening at the bottom and several protruding locking blocks (8) on the bottom side wall. The air inlet pipe (7) is provided with a sealing plate (23) to divide the air inlet pipe (7) into a buffer zone (18) and an air inlet zone (19). The sealing plate (23) has an air inlet channel (17) in the middle to connect the buffer zone (18) and the air inlet zone (19). The lower housing (2) is hollow inside, and has several air inlet holes (15) extending through it at the bottom; a placement ring (14) is provided above the air inlet holes (15) inside the lower housing (2); the inner side wall of the lower housing (2) is provided with an inverted "L" shaped locking groove (13), which matches the locking block (8); The soft rubber valve plate (4) is placed above the placement ring (14), and the central protrusion of the soft rubber valve plate (4) is used to place the support column (5). The valve plate (3) is connected to a push rod (9) on its side. A limit plate (22) is provided on the rod of the push rod (9). A spring (10) is provided on the rod between the limit plate (22) and the valve plate (3). The valve plate (3) is located in the air intake area (19). The push rod (9) passes through the air intake channel (17) and its tail end is located on the top of the support column (5). One end of the spring (10) abuts against the sealing plate (23) on the side of the buffer zone (18), and the other end abuts against the side of the limit plate (22). The diameter of the air intake channel (17) is larger than the diameter of the push rod (9); When not in operation, the top of the support column (5) and the air intake channel (17) are on the same horizontal plane, and the push rod (9) is horizontal when it is located between the support column (5) and the air intake channel (17).

2. The low-resistance breathing regulator according to claim 1, characterized in that: The top of the support column (5) is a spherical groove (20), and the spherical groove (20) is surrounded by an arc-shaped support groove (16). The tail of the push rod (9) is provided with a limiting ball (11) that matches the spherical groove (20).

3. The low-resistance breathing regulator according to claim 1, characterized in that: The soft rubber valve plate (4) is provided with a positioning ring (12) around its body, and the bottom of the upper housing (1) is provided with a positioning groove (21) around its body. The positioning ring (12) matches the positioning groove (21).

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