High-flow oxygen inhalation mask with two-stage flow regulation function

Abstract

The high-flow oxygen inhalation mask with the two-stage flow adjusting function comprises a mask body and a high-speed flow tube connected with the mask body, the end, away from the mask body, of the high-speed flow tube is connected with a connecting tube, and a flow adjusting valve is arranged in the connecting tube and comprises a valve ball. A first air inlet and a second air inlet which are distributed in a crossed mode are formed in the valve ball in a penetrating mode, the aperture of the first air inlet is smaller than that of the second air inlet, a first fixing rod penetrating through the side wall of the connecting pipe is arranged on one side of the valve ball, a second fixing rod and a knob are fixedly connected to the end, away from the valve ball, of the first fixing rod, the second fixing rod is sleeved with a locking piece, and a spring is arranged between the knob and the locking piece. A spring sleeves the periphery of the second fixing rod, a lock column is arranged on one side of the lock piece, an arc-shaped groove allowing the lock rod to rotate is formed in the outer side wall, facing the rotary knob, of the connecting pipe, and lock grooves allowing the lock column to be inserted are formed in the head end and the tail end of the arc-shaped groove; by arranging the lock column and the lock groove allowing the lock column to be inserted, when the lock column is inserted into the lock groove, the rotary knob can be locked, and the situation that the oxygen delivery amount is changed due to accidental touch is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-flow oxygen-absorbing masks, in particular to a high-flow oxygen-absorbing mask with a two-level flow regulating function. Background Art

[0002] As an important device between a respiratory therapy device and a patient, a high-flow oxygen mask is traditionally used as a nasal breathing tube, and the air intake of the breathing mask can only be adjusted by adjusting the oxygen delivery amount on the ventilator. In order to overcome the above problems, the existing authorized announcement number is CN108310581A, a breathing delivery mask for a ventilator, a flow regulating valve is connected to the high-speed flow tube, and the flow regulating valve includes a valve body, a rotating shaft, a valve plate, an adjusting knob and two valve seats, the valve seats are respectively arranged on both sides of the valve body, a valve cavity is arranged in the valve body, and the valve cavity passes through the two valve seats, the rotating shaft is rotatably supported in the valve body and passes through the valve cavity, one end of the rotating shaft extends to the outside of the valve body and is connected to the adjusting knob, and the valve plate is arranged in the valve cavity and fixedly connected to the rotating shaft. The high-speed flow tubes are respectively connected to the valve seats, and the rotating shaft is rotated by adjusting the knob, and the valve plate in the valve cavity also rotates synchronously with the rotating shaft, so that the oxygen delivery amount in the high-speed flow tube can be conveniently adjusted.

[0003] Although the flow regulating valve has the function of flexibly adjusting the oxygen delivery volume according to the individual needs of the user, its knob is rotatable 360 ​​degrees in all directions. This design makes it difficult for the user to accurately judge the current rotation position of the valve during the adjustment process, and therefore it is impossible to determine the flow rate of oxygen passing through the breathing mask. At the same time, due to the lack of locking during rotation, the valve is easy to rotate due to accidental touch, resulting in changes in the preset oxygen delivery volume. Utility Model Content

[0004] The utility model aims to provide a high-flow oxygen inhalation mask with a two-level flow regulation function to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-flow oxygen inhalation mask with a two-stage flow regulation function comprises a mask body and a high-speed flow tube connected to the mask body, wherein the high-speed flow tube is connected to a connecting tube at one end away from the mask body, a flow regulating valve is arranged in the connecting tube, the flow regulating valve comprises a valve ball, the valve ball is penetrated by an air inlet hole 1 and an air inlet hole 2 which are distributed in a cross, the aperture of the air inlet hole 1 is smaller than that of the air inlet hole 2, a fixing rod 1 which passes through a side wall of the connecting tube is arranged on one side of the valve ball, the fixing rod 1 is fixedly connected to a fixing rod 2 and a knob at one end away from the valve ball, a locking piece is sleeved on the fixing rod 2, a spring is arranged between the knob and the locking piece, the spring is sleeved on the outer periphery of the fixing rod 2, a locking column is arranged on one side of the locking piece, an arc groove for the locking rod to rotate is arranged on the outer side wall of the connecting tube facing the knob, a locking groove for the locking column to be inserted into the locking groove is arranged at the head end and the end end of the arc groove, a clamping hole is also arranged on the locking piece, and a clamping column for inserting into the clamping hole is arranged on one side of the knob.

[0007] Furthermore, the high-speed flow tube can be used separately from the flow regulating valve. When the flow regulating valve is removed, one end of the mask body is connected to the high-speed flow tube.

[0008] Furthermore, the width of the fixing rod 1 is greater than the width of the fixing rod 2.

[0009] Furthermore, hooks are symmetrically arranged on the mask body.

[0010] Furthermore, the mask body is made of silicone material.

[0011] Beneficial effects of the utility model:

[0012] The utility model drives the valve ball to rotate by rotating the knob, and arranges the first air inlet hole and the second air inlet hole of different sizes on the valve ball, so as to control the air intake volume of the high-flow oxygen inhalation mask.

[0013] The utility model provides an arc groove so that the lock column can rotate a certain angle along with the arc groove to prevent the knob from rotating excessively. At the same time, the user can clearly know the gas flow rate of the high-flow oxygen mask at this time.

[0014] The utility model provides a lock column and a lock slot for inserting the lock column. When the lock column is inserted into the lock slot, the knob will be locked to prevent the oxygen supply from changing due to accidental touch.

[0015] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : The overall structure diagram of the utility model.

[0017] Figure 2 : Explosion diagram of the utility model.

[0018] Figure 3 :The utility model Figure 2 Enlarged view of part A.

[0019] Figure 4 : Structural diagram of flow control valve of the utility model.

[0020] Figure numerals: 1. mask body; 2. connecting pipe; 3. high-speed flow tube; 4. flow regulating valve; 5. hook; 6. connecting piece; 7. connecting head; 21. arc groove; 22. locking groove; 41. valve ball; 42. air inlet hole 1; 43. air inlet hole 2; 44. fixing rod 1; 45. fixing rod 2; 46. knob; 47. locking piece; 48. spring; 461. clamping column; 471. locking column; 472. clamping hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Please refer to Figure 1-4 ;

[0023] A high-flow oxygen inhalation mask with a two-stage flow regulation function comprises a mask body 1 and a high-speed flow tube 3 connected to the mask body 1. The high-speed flow tube 3 of the utility model is fixedly connected or detachably connected to the mask body 1. The high-speed flow tube 3 comprises a connector 6 for connecting to a connecting tube 2. A flow regulating valve 4 is arranged in the connecting tube 2. The flow regulating valve 4 comprises a valve ball 41. A sealing gasket is arranged on the inner side wall of the connecting tube 2. The valve ball 41 abuts against the sealing ring of the inner side wall of the connecting tube 2 to prevent The check valve ball 41 is in direct contact with the connecting pipe 2, which causes the valve ball 41 to wear when rotating, thereby improving the sealing effect inside the connecting pipe 2. The valve ball 41 is penetrated with an air inlet hole 1 42 and an air inlet hole 2 43 distributed in a cross shape. The air inlet hole 1 42 and the air inlet hole 2 43 are connected. The aperture of the air inlet hole 1 42 is larger than that of the air inlet hole 2 43. A fixing rod 1 44 passing through the side wall of the connecting pipe 2 is provided on one side of the valve ball 41. The fixing rod 1 44 is fixedly connected to the fixing rod 2 45 and the knob 46 at one end away from the valve ball 41. The knob 46 controls the rotation of the valve ball 41. A lock 47 is sleeved on the fixed rod 45. A spring 48 is arranged between the knob 46 and the lock 47. The spring 48 is sleeved on the outer periphery of the fixed rod 45. A lock column 471 is arranged on one side of the lock 47. An arc groove 21 for the lock rod to rotate is arranged on the outer side wall of the connecting pipe 2 facing the knob 46. The lock column 471 can move along the arc groove 21. The arc groove 21 is arranged at a certain angle. The arc groove 21 of the utility model is 90 degrees. By observing The position of the lock column 471 can help the user know which air inlet corresponds to the high-speed flow tube 3 at this time. The head and the end of the arc groove 21 are provided with lock grooves 22 for the lock column 471 to be inserted. The lock groove 22 is deeper than the arc groove 21. The lock piece 47 is also provided with a clamping hole 472. A clamping column 461 for inserting into the clamping hole 472 is provided on one side of the knob 46. The clamping column 461 is arranged through the clamping hole 472 so that it rotates with the knob 46 and moves along the clamping column 461 and the fixing rod 45.

[0024] Specifically, the high-speed flow tube 3 is inserted into the connecting tube 2, the mask body 1 is covered on the mouth and nose of the human body, and is fixed to the human head with a supporting assembly. When a large amount of air is needed to enter, the knob 46 is turned clockwise to drive the valve ball 41 to rotate. When the lock column 471 is rotated to the lock hole in the vertical direction, the air inlet 42 corresponds to the high-speed flow tube 3, and the spring 48 provides a leftward force to the lock piece 47, so that the lock column 471 is automatically inserted into the lock hole, thereby locking the knob 46 to prevent the position of the air inlet from being changed due to accidental touching of the knob 46. The second air hole 43 abuts against the inner wall of the connecting tube 2 to prevent gas from flowing in from the second air inlet hole 43; when a small amount of air is needed to enter, a rightward force is applied to the lock member 47 by hand to make the lock column 471 leave the lock hole, and then the knob 46 is turned counterclockwise to drive the valve ball 41 to rotate. When the lock column 471 rotates to the horizontal lock hole, the second air inlet hole 43 corresponds to the high-speed flow tube 3, and the spring 48 provides a leftward force to the lock member 47 to make the lock column 471 automatically insert into the lock hole. At the same time, the first air inlet hole 42 abuts against the inner wall of the connecting tube 2 to prevent gas from flowing in from the first air inlet hole 42.

[0025] Furthermore, the high-speed flow tube 3 can be used separately from the flow regulating valve 4. When the flow regulating valve 4 is removed, one end of the mask body 1 is connected to the high-speed flow tube 3.

[0026] In addition, the width of the fixing rod 1 44 is greater than the width of the fixing rod 2 45 , wherein the locking member 47 abuts against the end of the fixing rod 1 44 to form a limit to prevent the locking member 47 from being separated from the clamping column 461 .

[0027] In this embodiment, the end of the connecting tube 2 away from the high-speed flow tube 3 is connected to a connector 7, and the connector 7 is used to connect to an external oxygen supply pipeline.

[0028] In this embodiment, the mask body 1 is symmetrically provided with buckles 5. When the mask is worn, straps can be tied on the buckles 5 to fix it to the human head.

[0029] In the present embodiment, the mask body 1 is made of silicone material, which is soft, has good toughness and elasticity, can achieve a good seal at the facial fitting position, and is environmentally friendly and non-toxic.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A high-flow oxygen inhalation mask with a two-stage flow regulation function, comprising a mask body (1) and a high-speed flow tube (3) connected to the mask body (1), wherein the high-speed flow tube (3) is connected to a connecting tube (2) at one end away from the mask body (1), and a flow regulating valve (4) is arranged in the connecting tube (2), characterized in that: The flow regulating valve (4) comprises a valve ball (41), the valve ball (41) being provided with a first air inlet hole (42) and a second air inlet hole (43) distributed in a cross pattern, the aperture of the first air inlet hole (42) being smaller than that of the second air inlet hole (43), a fixing rod (44) passing through a side wall of the connecting pipe (2) being provided on one side of the valve ball (41), a fixing rod (45) and a knob (46) being fixedly connected to one end of the fixing rod (44) away from the valve ball (41), a locking member (47) being sleeved on the fixing rod (45), the knob (46) and the locking member (47) being engaged with each other. A spring (48) is arranged between the two fixing rods (47), and the spring (48) is sleeved on the outer periphery of the second fixing rod (45). A locking column (471) is arranged on one side of the locking member (47). An arc-shaped groove (21) for the locking rod to rotate is arranged on the outer side wall of the connecting tube (2) facing the knob (46). The head end and the tail end of the arc-shaped groove (21) are provided with locking grooves (22) for the locking column (471) to be inserted. A clamping hole (472) is also arranged on the locking member (47), and a clamping column (461) for inserting into the clamping hole (472) is arranged on one side of the knob (46).

2. A high-flow oxygen mask with a two-level flow regulation function according to claim 1, characterized in that: The width of the fixing rod 1 (44) is greater than the width of the fixing rod 2 (45).

3. A high-flow oxygen inhalation mask with a two-level flow regulation function according to claim 1, characterized in that: The mask body (1) is symmetrically provided with hanging buckles (5).

4. A high-flow oxygen inhalation mask with a two-level flow regulation function according to claim 1, characterized in that: The mask body (1) is made of silicone material.

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