Tube assemblies, breathing masks and ventilation therapy equipment

Abstract

The present invention relates to the field of ventilation therapy equipment, and discloses a tube assembly, a breathing mask, and a ventilation therapy equipment. When the tube assembly of the present invention is in use, when a first tube and a second tube are plugged into each other, a valve structure opens the outlet end of the first tube to allow a medium to flow from the first tube to the second tube, and at the same time, a discharge hole is closed to prevent the medium from flowing out of the discharge hole, so that the medium can only flow from the first tube to the second tube; when the first tube and the second tube are separated from each other, the valve structure closes the outlet end of the first tube to prevent the medium from flowing out through the outlet end, and at the same time, the discharge hole is opened to allow the medium to be discharged from the discharge hole to the outside at a lower flow rate. As a result, the tube assembly of the present invention can not only ensure the effective flow of the medium, but also enable the medium to be discharged to the outside at a lower flow rate when the first tube and the second tube are separated from each other, thereby avoiding the generation of leakage noise when the medium is gas.

Description

Technical Field

[0001] The present invention relates to the field of ventilation therapy equipment, in particular to a tube assembly, a breathing mask comprising the tube assembly, and a ventilation therapy equipment comprising the breathing mask. Background Art

[0002] Existing ventilation therapy equipment usually includes a host for generating therapeutic gas, a patient interface device, and a ventilation line connecting the host and the patient interface device. The patient interface device usually includes a nasal mask, an oronasal mask, a nasal pillow mask, a full-face mask and other types of respiratory masks. The typical structure of a respiratory mask includes a frame, a cushion, an elbow and a headband. The cushion is fixed to the frame and forms a breathing cavity together with the frame. One end of the elbow is connected to the ventilation line, and the other end is connected to the frame to deliver the therapeutic gas from the host to the breathing cavity. The headband is connected to the patient's head to fix the respiratory mask to the patient's head. When in use, the cushion contacts the patient's face and achieves a seal with the face, and the patient's mouth and / or nose is located in the breathing cavity.

[0003] However, the above ventilation therapy equipment has the following problem: when the patient wants to suspend treatment and directly disconnects the breathing mask from the ventilation pipeline, since the host is still in working state, it will cause a large leakage noise at the ventilation pipeline port, and the equipment alarm may be triggered due to excessive leakage. Summary of the invention

[0004] The object of the present invention is to provide a tube assembly, a breathing mask including the tube assembly, and a ventilation therapy device including the breathing mask to solve the above problems.

[0005] In order to achieve the above object, the present invention provides a pipe assembly in a first aspect, the pipe assembly comprising a first pipe member and a second pipe member, the pipe assembly having a connection state in which the first pipe member and the second pipe member are coaxially plugged together and a separation state in which the first pipe member and the second pipe member are separated from each other, the first pipe member having an inlet end for connecting to a medium source and an outlet end for connecting to the second pipe member;

[0006] The first pipe has a discharge hole, and the discharge hole is configured such that: in the connected state, the discharge hole is closed to allow the medium from the medium source to enter the second pipe; in the separated state, the discharge hole is opened to allow the medium from the medium source to be discharged from the discharge hole to the outside;

[0007] The pipe assembly includes a valve structure, and the valve structure is configured as follows: in the connected state, the valve structure opens the outlet end of the first pipe to allow the medium from the medium source to enter the second pipe; in the separated state, the valve structure closes the outlet end to allow the medium from the medium source to be discharged from the discharge hole to the outside.

[0008] Optionally, the valve structure comprises a valve plate rotatably disposed in the first pipe member, the rotation axis of the valve plate is perpendicular to the axial direction of the first pipe member, and the valve plate can rotate between a first position of closing the discharge hole and opening the outlet end of the first pipe member and a second position of opening the discharge hole and closing the outlet end of the first pipe member, wherein:

[0009] The valve plate is arranged such that when the valve plate is in the second position, the edge of the valve plate abuts against the inner wall surface of the first pipe member, and the discharge hole is provided on the pipe wall of the first pipe member or on the valve plate; or

[0010] The valve plate is arranged such that when the valve plate is in the second position, there is a gap between the edge of the valve plate and the inner wall surface of the first pipe member, and the gap forms the discharge hole.

[0011] Optionally, the valve structure includes a valve core movably arranged in the first pipe fitting along the axial direction of the first pipe fitting, the discharge hole is opened on the pipe wall of the first pipe fitting, and the second pipe fitting is opened with a medium flow channel, and the pipe assembly is configured as follows: in the connected state, the valve core moves to the upstream of the discharge hole along the medium flow direction, and the part of the second pipe fitting extending into the first pipe fitting together with the valve core constitutes the valve structure to close the discharge hole, and the first pipe fitting is connected to the second pipe fitting through the medium flow channel; in the separated state, the valve core moves to the downstream of the discharge hole along the medium flow direction to close the outlet end of the first pipe fitting.

[0012] Optionally, the pipe assembly comprises a connection structure for connecting the first pipe member and the second pipe member, wherein the connection structure is configured to prevent the first pipe member and the second pipe member from being separated from each other when they are in the connected state; and / or

[0013] In the connected state, the first pipe member and the second pipe member are rotatable relative to each other.

[0014] Optionally, the connection structure includes a matching buckle and a slot, the buckle is arranged on one of the first pipe member and the second pipe member, and the slot is arranged on the other of the first pipe member and the second pipe member.

[0015] Optionally, the tube assembly includes a restriction member, which is used to prevent the buckle from being disengaged from the slot when it is engaged in the slot.

[0016] Optionally, the slot is arranged on the outer wall surface of the second pipe, the buckle is rotatably connected to the outer wall surface of the first pipe, and the buckle is configured to be able to swing along the radial direction of the first pipe to engage with or separate from the slot; the limiting member is a ring movably sleeved on the outside of the first pipe or the second pipe along the axial direction of the first pipe; or

[0017] The clamping groove is an L-shaped groove opened on the tube wall of the second tube fitting, and the L-shaped groove includes an axial part and a radial part. The buckle is a columnar member protrudingly arranged on the tube wall of the first tube fitting, and the columnar member can enter the axial part and move to the radial part to achieve clamping when the first tube fitting and the second tube fitting are plugged in; the limiting member is a protrusion arranged in the radial part, and the protrusion can releasably stop the columnar member.

[0018] Optionally, the connecting structure includes a first protrusion and a second protrusion that are adapted to each other, the first protrusion being arranged on the inner wall surface or the outer wall surface of the first pipe fitting, the second protrusion being arranged on the outer wall surface or the inner wall surface of the second pipe fitting, and the first protrusion and the second protrusion being arranged to be able to be connected or separated by relative rotation of the first pipe fitting and the second pipe fitting.

[0019] Optionally, the connection structure comprises a first magnet and a second magnet with opposite magnetic poles, the first magnet is arranged on one of the first pipe and the second pipe, and the second magnet is arranged on the other of the first pipe and the second pipe; or

[0020] The connection structure includes a first thread and a second thread that match each other. The first thread is provided on one of the first pipe and the second pipe, and the second thread is provided on the other of the first pipe and the second pipe.

[0021] A second aspect of the present invention provides a breathing mask, which includes a frame, a cushion and the tube assembly described above, wherein the cushion is installed on the frame and defines a breathing cavity together with the frame, and the tube assembly is connected to the frame through the second pipe and communicates with the breathing cavity.

[0022] A third aspect of the present invention provides a ventilation therapy device, which comprises the breathing mask described above.

[0023] The pipe assembly of the present invention adopts the above technical solution. When the first pipe and the second pipe are plugged into each other, the valve structure opens the outlet end of the first pipe to allow the medium to flow from the first pipe to the second pipe, and the discharge hole is closed to prevent the medium from flowing out of the discharge hole, so that the medium can only flow from the first pipe to the second pipe; when the first pipe and the second pipe are separated from each other, the valve structure closes the outlet end of the first pipe to prevent the medium from flowing out through the outlet end, and the discharge hole is opened to allow the medium to be discharged from the discharge hole to the outside at a lower flow rate. Therefore, the pipe assembly of the present invention can not only ensure the effective flow of the medium, but also enable the medium to be discharged to the outside at a lower flow rate when the first pipe and the second pipe are separated from each other, thereby avoiding the generation of leakage noise when the medium is gas.

[0024] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 is a cross-sectional view of a first embodiment of a pipe assembly according to the present invention, wherein the pipe assembly is in a separated state;

[0027] Figure 2 yes Figure 1 A schematic diagram of the pipe assembly in a connected state;

[0028] Figure 3 is a cross-sectional view of a second embodiment of the pipe assembly of the present invention, wherein the pipe assembly is in a separated state;

[0029] Figure 4 is a cross-sectional view of a third embodiment of the tube assembly of the present invention, wherein the tube assembly is in a separated state;

[0030] Figure 5 is a cross-sectional view of a fourth embodiment of the tube assembly of the present invention, wherein the tube assembly is in a separated state;

[0031] Figure 6 yes Figure 5 A magnified view of part A in FIG.

[0032] Figure 7 is a schematic structural diagram of a fifth embodiment of the pipe assembly of the present invention, wherein the pipe assembly is in a separated state;

[0033] Figure 8 yes Figure 7 A cross-sectional view of

[0034] Fig. 9 yes Figure 8 A schematic diagram of the pipe assembly in a connected state;

[0035] Fig.10 is a cross-sectional view of a sixth embodiment of the tube assembly of the present invention, wherein the tube assembly is in a separated state;

[0036] Fig.11 yes Fig.10 A schematic diagram of the pipe assembly in a connected state;

[0037] Fig.12 yes Fig. 9 A schematic diagram of a pipe assembly in which a valve core stopper is provided;

[0038] Fig.13 yes Fig. 9 Schematic diagram of pipe assemblies in which valve cores of different structures are arranged;

[0039] Fig.14 is a schematic diagram of a connection structure of a first embodiment of the present invention being arranged on a pipe assembly, wherein the pipe assembly is in a separated state;

[0040] Fig.15 yes Fig.14 A cross-sectional view of the pipe assembly in a connected state;

[0041] Fig.16 is a schematic diagram of a second embodiment of the present invention in which a connecting structure is arranged on a pipe assembly, wherein the pipe assembly is in a separated state;

[0042] Fig.17 yes Fig.16 A cross-sectional view of the pipe assembly in a connected state;

[0043] Fig.18 is a schematic diagram of a connection structure of a third embodiment of the present invention being arranged on a pipe assembly, wherein the pipe assembly is in a separated state and a collar is arranged on the outer sleeve of the first pipe member;

[0044] Fig.19 yes Fig.18 A cross-sectional view of

[0045] Fig. 20 yes Fig.19 A schematic diagram of the pipe assembly in a connected state;

[0046] Fig.21 is a cross-sectional view of a fourth embodiment of the connection structure of the present invention provided on a pipe assembly, wherein the pipe assembly is in a connected state;

[0047] Fig. 22 is a schematic diagram of a fifth embodiment of the present invention in which a connecting structure is arranged on a pipe assembly, wherein the pipe assembly is in a separated state;

[0048] Fig.23 yes Fig. 22 A magnified view of part B in FIG.

[0049] Fig.24 yes Fig. 22 A cross-sectional view of the pipe assembly in a connected state;

[0050] Fig.25 is a schematic diagram of a first protrusion of a connection structure according to a sixth embodiment of the present invention being arranged on a first pipe member;

[0051] Fig.26 is a schematic diagram of a second protrusion of a connection structure according to a sixth embodiment of the present invention being arranged on a second pipe member;

[0052] Fig. 27 yes Fig.25 The first pipe and Fig.26 A cross-sectional view of the second pipe member connected to the first pipe member, wherein an end of the second pipe member facing away from the first pipe member is connected to a bent pipe;

[0053] Fig.28 is a schematic diagram of an embodiment of a ventilation therapy device in the present invention, wherein only a breathing mask, a tube assembly and a portion of a ventilation circuit are shown;

[0054] Fig.29 yes Fig.28 A cross-sectional view of the tube assembly connected to a breathing mask and a ventilation circuit.

[0055] Description of Reference Numerals

[0056] 211-frame, 212-pad, 213-forehead support, 31-first pipe fitting, 311-discharge hole, 312-buckle, 313-anti-slip portion, 314-first raised portion, 32-second pipe fitting, 321-medium flow channel, 322-slot, 323-bump, 324-second raised portion, 33-valve plate, 34-valve core, 35-ring, 36-elbow, 361-anti-suffocation valve plate, 37-valve core limiter, 50-ventilation pipeline. DETAILED DESCRIPTION

[0057] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0058] In the present invention, unless otherwise specified, directional terms such as "top" and "bottom" generally refer to the directions shown in the accompanying drawings. "Inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0059] According to a first aspect of the present invention, there is provided a pipe assembly, which includes a first pipe fitting 31 and a second pipe fitting 32. The pipe assembly has a connection state in which the first pipe fitting 31 and the second pipe fitting 32 are coaxially plugged in and a separation state in which the first pipe fitting 31 and the second pipe fitting 32 are separated from each other. The first pipe fitting 31 has an inlet end for connecting to a medium source and an outlet end for connecting to the second pipe fitting 32. The first pipe fitting 31 has a discharge hole 311, and the discharge hole 311 is configured as follows: in the connection state, the discharge hole 311 is closed to allow a medium from the medium source to enter the second pipe fitting 32; in the separation state, the discharge hole 311 is opened to allow the medium from the medium source to be discharged from the discharge hole 311 to the outside. The pipe assembly also includes a valve structure, and the valve structure is configured as follows: in the connection state, the valve structure opens the outlet end of the first pipe fitting 31 to allow the medium from the medium source to enter the second pipe fitting 32; in the separation state, the valve structure closes the outlet end to allow the medium from the medium source to be discharged from the discharge hole 311 to the outside.

[0060] In the above, it should be noted that the hole area of ​​the discharge hole 311 is smaller than the area of ​​the outlet end of the first pipe 31, that is, the medium flow rate of the discharge hole 311 is smaller than the medium flow rate of the outlet end. When in use, the medium flow rate discharged from the discharge hole 311 can be controlled by designing the hole diameter and number of the discharge holes 311, so that when the first pipe 31 and the second pipe 32 are separated from each other, the medium cannot flow out from the outlet end of the first pipe 31 but can only flow out through the discharge hole 311 at a desired lower flow rate.

[0061] The pipe assembly of the present invention adopts the above technical solution. When the first pipe 31 and the second pipe 32 are plugged into each other, the valve structure opens the outlet end of the first pipe 31 to allow the medium to flow from the first pipe 31 to the second pipe 32, and the discharge hole 311 is closed to prevent the medium from flowing out of the discharge hole 311, so that the medium can only flow from the first pipe 31 to the second pipe 32; when the first pipe 31 and the second pipe 32 are separated from each other, the valve structure closes the outlet end of the first pipe 31 to prevent the medium from flowing out through the outlet end, and the discharge hole 311 is opened to discharge the medium from the discharge hole 311 to the outside at a lower flow rate. Therefore, the pipe assembly of the present invention can not only ensure the effective flow of the medium, but also enable the medium to be discharged to the outside at a lower flow rate when the first pipe 31 and the second pipe 32 are separated from each other, thereby avoiding the generation of leakage noise when the medium is gas.

[0062] According to an embodiment of the valve structure of the present invention, the valve structure includes a valve plate 33 rotatably arranged in the first pipe member 31, the rotation axis of the valve plate 33 is perpendicular to the axial direction of the first pipe member 31, and the valve plate 33 can be in a first position (see Figure 2) and the second position (see Figure 1 ). In this case, the valve plate 33 can be arranged in two different ways. One is to arrange the valve plate 33 in the second position so that the edge of the valve plate 33 abuts against the inner wall of the first pipe member 31, that is, the valve plate 33 can completely block the outlet end. At this time, the discharge hole 311 can be opened on the pipe wall of the first pipe member 31 (such as Figure 1 and Figure 2 As shown), it can also be opened on the valve plate 33 (as shown Figure 3 Another is to set the valve plate 33 in the second position when the edge of the valve plate 33 and the inner wall of the first pipe 31 has a gap, the gap forms a discharge hole 311 (as shown in FIG. Figure 5 and Figure 6 shown).

[0063] That is to say, in the above manner, the opening and closing of the discharge hole 311 and the opening and closing of the outlet end of the first pipe member 31 are both realized by the valve plate 33. Of course, according to the different positions of the discharge hole 311 on the pipe wall of the first pipe member 31, the valve plate 33 can also cooperate with the second pipe member 32 to realize the function of the valve structure. Figure 4 As shown, the valve plate 33 is connected to the top of the tube wall of the first tube 31, and the discharge hole 311 is opened at the bottom of the tube wall of the first tube 31. In this case, when the second tube 32 is inserted into the first tube 31, the second tube 32 pushes the valve plate 33 to the first position to open the outlet end of the first tube 31, and the tube wall of the second tube 32 blocks the discharge hole 311. It should be noted that after the second tube 32 is inserted into the first tube 31, the outer wall surface of the second tube 32 is tightly fitted with the side surface of the valve plate 33 and the inner wall surface of the first tube 31 to prevent air leakage.

[0064] According to another embodiment of the valve structure of the present invention, Figure 7-Figure 11 As shown, the valve structure includes a valve core 34 movably arranged in the first pipe member 31 along the axial direction of the first pipe member 31, the discharge hole 311 is opened on the pipe wall of the first pipe member 31, and the second pipe member 32 is opened with a medium flow channel 321. The pipe assembly is configured as follows: in the connected state, the valve core 34 moves to the upstream of the discharge hole 311 along the medium flow direction (i.e., the direction from the first pipe member 31 to the second pipe member 32), and the part of the second pipe member 32 extending into the first pipe member 31 together with the valve core 34 constitutes the valve structure to close the discharge hole 311, and the first pipe member 31 is connected to the second pipe member 32 through the medium flow channel 321 (see Fig. 9 and Fig.11 ); In the separation state, the valve core 34 moves to the downstream of the discharge hole 311 along the medium flow direction to close the outlet end of the first pipe 31 (see Figure 8 and Fig.10 ).

[0065] In the above, the valve core 34 can be any component that can move in the first pipe 31 and can block the outlet end of the first pipe 31. For example, the valve core 34 can be a columnar body or a spherical body. Figure 8 and Fig. 9 As shown, when the second pipe member 32 is inserted into the first pipe member 31, the second pipe member 32 can push the first pipe member 31 which is originally located at the second position (see Figure 8 ) moves the valve core 34 to the right to the first position (see Fig. 9 ), at this time, the discharge hole 311 is covered and closed by the tube wall of the second tube 32, and the medium in the first tube 31 enters the second tube 32 through the gap between the valve core 34 and the inner wall surface of the first tube 31 and the medium flow channel 321; when the second tube 32 is separated from the first tube 31, the valve core 34 will move from the first position back to the second position under the action of the flow force of the medium, thereby blocking the outlet end and allowing the medium to be discharged through the discharge hole 311.

[0066] It can be understood that in order to enable the valve core 34 to block the outlet end when in the second position and to generate a gap with the inner wall surface of the first pipe member 31 when moving to the first position, the first pipe member 31 is configured as a variable diameter structure, such as Figure 8-Figure 11 shown.

[0067] In order to prevent the valve core 34 from continuing to move rightward or flipping when in the first position, thereby affecting the use of the valve core 34 and even causing equipment failure, the valve structure may further include a valve core stopper 37 disposed in the first pipe 31, and the valve core stopper 37 is configured to limit the valve core 34. Specifically, for example Fig.12 As shown, the valve core limiter 37 can be an annular boss provided on the inner wall of the first pipe member 31. When the valve core 34 is in the first position, the right side surface of the valve core 34 can abut against the left side surface of the annular boss, so that the valve core 34 cannot continue to move to the right and cannot flip. Of course, there can also be a gap between the right side surface of the valve core 34 and the left side surface of the annular boss, and the gap is smaller than the axial length of the valve core 34, so that the valve core 34 can be prevented from flipping in the horizontal direction (i.e., flipping left and right); further, the gap between the right side surface of the valve core 34 and the left side surface of the annular boss is preferably set to be smaller than the maximum diameter of the valve core 34, so that the valve core 34 can be prevented from flipping in the vertical direction (i.e., flipping up and down). In addition, for example Fig.13 As shown, the valve core 34 itself can also be made more stable in structure. Fig.12 Compared with the valve core 34 in Fig.13 The center of gravity of the valve core 34 is to the right, which can improve the stability of the valve core 34 when it is in the first position. Fig.13, the size of a can be between one-third and two-thirds of c, or a 2 +b 2 =c 2 , thus the valve core 34 can be prevented from turning over. Of course, the present invention is not limited thereto, and the valve core stopper 37 can be any component or structure capable of limiting the valve core 34 as described above.

[0068] In the present invention, when the pipe assembly is in the connected state, the first pipe 31 and the second pipe 32 can be set to be able to rotate relative to each other, or can be set to be unable to rotate. In addition, the pipe assembly can also include a connection structure for connecting the first pipe 31 and the second pipe 32, and the connection structure is configured to prevent the first pipe 31 and the second pipe 32 from being separated from each other when they are in the connected state. In this way, it can be avoided that the first pipe 31 and the second pipe 32 are separated in an accidental situation and affect the flow of the medium.

[0069] According to an embodiment of the connection structure of the present invention, the connection structure includes a matching buckle 312 and a slot 322, the buckle 312 is arranged on one of the first pipe 31 and the second pipe 32, and the slot 322 is arranged on the other of the first pipe 31 and the second pipe 32.

[0070] In the above embodiment, the buckle 312 and the slot 322 can be arranged in a variety of ways. Fig.14 and Fig.15 As shown, the buckle 312 can be set on the outer wall surface of the second pipe 32, and the groove 322 can be set on the inner wall surface of the first pipe 31. When the first pipe 31 and the second pipe 32 need to be separated, the buckle 312 and the groove 322 can be separated by strong force.

[0071] For example Fig.16 and Fig.17 As shown, the slot 322 can be provided on the outer wall surface of the second tube 32, the buckle 312 is rotatably connected to the outer wall surface of the first tube 31, and the buckle 312 is configured to be able to swing along the radial direction of the first tube 31 to engage with or disengage from the slot 322. The slot 322 can be an arc or annular shape extending along the circumference of the second tube 32, and its extension length is greater than the corresponding length of the buckle 312 engaged with it. In this case, one slot 322 can be engaged with multiple buckles 312. In addition, in this arrangement, in order to prevent the buckle 312 from detaching from the slot 322 when engaged with the slot 322, the buckle 312 can be set to have an engaged state engaged with the slot 322 and a disengaged state disengaged from the slot 322, and the buckle 312 can swing from the engaged state to the disengaged state only when subjected to force, and the buckle 312 is always in the engaged state in the natural state, such as Fig.16As shown, when the buckle 312 needs to be engaged with the slot 322, the right end of the buckle 312 can be pressed to swing the buckle 312 to a separated state to allow engagement with the slot 322. An anti-slip portion 313 can be provided on the outer side of the right end of the buckle 312.

[0072] Of course, other components may also be used to prevent the buckle 312 from being disengaged from the slot 322 when it is engaged with the slot 322. That is, the tube assembly may include a restriction member, which is used to prevent the buckle 312 from being disengaged from the slot 322 when it is engaged with the slot 322. For example Figure 18-Figure 20 As shown, the limiting member is a collar 35 that is movably sleeved on the outside of the first pipe member 31 or the second pipe member 32 along the axial direction of the first pipe member 31. When the buckle 312 is engaged with the slot 322, the collar 35 can be moved to the left to cover the buckle 312, thereby preventing the buckle 312 from rotating. When the first pipe member 31 and the second pipe member 32 need to be separated, the collar 35 is first moved to the right to leak out of the buckle 312, and then the buckle 312 is rotated to separate from the slot 322.

[0073] It is conceivable that in other embodiments, such as Fig.21 As shown, the connection structure may also only include a collar 35, which is rotatably connected to the first pipe fitting 31. The inner wall surface of the collar 35 may be provided with an internal thread, and correspondingly, the outer wall surface of the second pipe fitting 32 may be provided with an external thread. By rotating the collar 35, the internal and external threads can be locked with each other, so that the first pipe fitting 31 and the second pipe fitting 32 are connected; when it is necessary to separate the first pipe fitting 31 and the second pipe fitting 32, the collar 35 can be rotated in the opposite direction to withdraw the thread, thereby completing the separation.

[0074] For example Figure 22-Figure 24 As shown, the slot 322 is an L-shaped slot opened on the tube wall of the second tube 32, and the L-shaped slot includes an axial portion and a radial portion. The buckle 312 is a columnar member protrudingly arranged on the tube wall of the first tube 31, and the columnar member can enter the axial portion and move to the radial portion to achieve the snap connection when the first tube 31 and the second tube 32 are plugged. In this case, in order to prevent the buckle 312 from detaching from the slot 322 when it is snapped into the slot 322, as shown in FIG. Fig.23 As shown, the limiting member may be a protrusion 323 disposed in the radial portion, and the protrusion 323 can releasably stop the columnar member. When in use, the first pipe member 31 or the second pipe member 32 can be rotated so that the columnar member passes over the protrusion 323 and moves to the left side of the protrusion 323 to achieve position limiting. When the first pipe member 31 and the second pipe member 32 need to be separated, the first pipe member 31 or the second pipe member 32 can be rotated in the opposite direction so that the columnar member passes over the protrusion 323 and moves to the right side of the protrusion 323, thereby disengaging from the slot 322.

[0075] It should be noted that, in the above, the buckle 312 and the slot 322 can be interchanged. In addition, the buckle 312 and the slot 322 are not limited to the above structures, and other structures that can achieve their functions are also within the protection scope of the present invention.

[0076] According to another embodiment of the connection structure of the present invention, Figure 25-27 As shown, the connection structure includes a first protrusion 314 and a second protrusion 324 that match each other. The first protrusion 314 is arranged on the inner wall surface or the outer wall surface of the first pipe 31, and the second protrusion 324 is arranged on the outer wall surface or the inner wall surface of the second pipe 32. The first protrusion 314 and the second protrusion 324 are arranged to be able to be connected or separated by relative rotation of the first pipe 31 and the second pipe 32. Specifically, as Fig.25 As shown, the first protrusion 314 may be T-shaped, such as Fig.26 As shown, the second protrusion 324 may include two protrusions spaced apart from each other along the circumference of the second pipe 32. When the second pipe 32 is plugged into the first pipe 31, the first protrusion 314 and the second protrusion 324 are allowed to avoid each other. After plugging, the first pipe 31 or the second pipe 32 is rotated to make the first protrusion 314 and the second protrusion 324 axially relative to each other to achieve clamping. At this time, the axial part of the first protrusion 314 is clamped between the two protrusions to achieve rotational limit. Of course, the first protrusion 314 and the second protrusion 324 are not limited to Fig.25 and Fig.26 Other structures capable of achieving rotational engagement are also within the protection scope of the present invention.

[0077] It should be noted that in the embodiment of the above connection structure, the connection structure may include a plurality of buckles 312 and a plurality of slots 322. The plurality of buckles 312 and the plurality of slots 322 may be arranged at intervals along the circumference of the first pipe member 31 and the second pipe member 32, respectively.

[0078] According to another embodiment of the connection structure of the present invention, the connection structure may include a first magnet and a second magnet with opposite magnetic poles, the first magnet is disposed on one of the first pipe 31 and the second pipe 32, and the second magnet is disposed on the other of the first pipe 31 and the second pipe 32. When the first pipe 31 and the second pipe 32 are plugged in, further connection can be achieved through the adsorption of the first magnet and the second magnet.

[0079] According to another embodiment of the connection structure of the present invention, the connection structure may include a first thread and a second thread that match each other, the first thread being arranged on one of the first pipe 31 and the second pipe 32, and the second thread being arranged on the other of the first pipe 31 and the second pipe 32. That is, the first pipe 31 and the second pipe 32 may be connected to each other via threads arranged on the inner wall surface or the outer wall surface.

[0080] The connection structure of the present invention is not limited to the above-mentioned embodiment, and the connection structure can also be adopted in other ways. For example, a metal (such as iron) that can be attracted by magnetism can be attached to the second pipe 32, and an electromagnet device and a switch can be set on the first pipe 31; or corresponding electric buckles and buckle grooves can be set on the first pipe 31 and the second pipe 32 respectively. When the second pipe 32 is inserted into the first pipe 31, the switch is closed to form a circuit, and the electromagnet has magnetism after being energized, and attracts the metal on the second pipe 32, so that the first pipe 31 and the second pipe 32 are not easy to separate; or after the circuit is formed, the electric buckle is activated to buckle the buckle groove on the second pipe 32. When separating the first pipe 31 and the second pipe 32, the switch is operated, and the electromagnet loses its magnetism after power failure or the electric buckle is restored after power failure, so that the first pipe 31 and the second pipe 32 can be easily separated.

[0081] In the present invention, the pipe assembly may further include an elbow 36, which is connected to the end of the second pipe 32 away from the first pipe 31. The elbow 36 and the second pipe 32 may be arranged to be rotatable relative to each other, or may be arranged to be non-rotatable. The elbow 36 and the second pipe 32 may also be formed as one body. An anti-suffocation valve sheet 361 may also be arranged in the elbow 36 to ensure the unidirectional flow of the medium.

[0082] In the present invention, the switch of the outlet end of the first pipe 31 and the switch of the discharge hole 311 can also be automatically controlled. For example, when the first pipe 31 is connected to the second pipe 32, an electrical signal can be generated (for example, through a loop connection, a sensor, a touch switch, etc.), and the signal controls the outlet end of the first pipe 31 to open and the discharge hole 311 to close; when the first pipe 31 is separated from the second pipe 32, the first pipe 31 is disconnected from the second pipe 32, and no electrical signal is generated. At this time, the outlet end of the first pipe 31 is closed, the discharge hole 311 is opened, and the exhaust can be controlled.

[0083] In the present invention, the parameters of the discharge hole 311 (such as the number, diameter and thickness, inner cone and outer cone of the hole, hydrophobic material, etc.) can be specially designed to further control the flow and reduce the noise. For example, when the discharge hole 311 is arranged on the tube wall of the first tube member 31, one of the inner wall surface and the outer wall surface of the tube wall can be formed by a hydrophobic material or a hydrophilic material, or coated with a hydrophobic material or a hydrophilic material. The other wall surface can be formed by or coated with the other of the hydrophobic material and the hydrophilic material. The discharge hole 311 can be set to a structure with different ventilation areas at both ends, such as a trapezoidal or hourglass shape. Specifically, when the tube assembly is applied to a breathing mask, the structure of the discharge hole 311 can be set according to the depth of the mask in the sagittal plane (the human body is divided into left and right parts, and the left and right sections are the sagittal plane). When the depth is small, that is, the patient's face is close to the discharge hole 311, the area of ​​the proximal discharge hole can be larger than the area of ​​the distal discharge hole to prevent the occurrence of high noise caused by the intersection of airflows; when the depth is large, that is, the patient's face is far away from the discharge hole 311, the area of ​​the proximal discharge hole can be larger than the area of ​​the distal discharge hole to facilitate the evacuation of the discharged gas. In addition, a spoiler structure (such as a spoiler) can be set between the structures from the proximal end to the distal end to reduce the noise of gas discharge.

[0084] In the present invention, the number, size, spacing and overall arrangement of the discharge holes 311 can be set in a variety of ways. For example, the diameter of the discharge holes 311 can range from 0.4 mm to 1.5 mm, preferably from 0.6 mm to 0.8 mm. The thickness of the location where the discharge holes 311 are set can range from 1 mm to 20 mm.

[0085] A second aspect of the present invention provides a breathing mask, such as Fig.28 and Fig.29 As shown, the breathing mask includes a frame 211, a cushion 212 and the tube assembly described above, the cushion 212 is installed on the frame 211 and defines a breathing cavity together with the frame 211, and the tube assembly is connected to the frame 211 through a second pipe 32 and communicates with the breathing cavity.

[0086] When the pipe assembly further includes a bent pipe 36 , the pipe assembly is connected to the frame 211 via the bent pipe 36 .

[0087] A third aspect of the present invention provides a ventilation therapy device, which comprises the breathing mask described above.

[0088] The ventilation therapy device may further include a host for generating therapeutic gas and a ventilation line 50 for connecting the host with the breathing mask. The host is the medium source mentioned above, and one end of the ventilation line 50 is connected to the air outlet of the host, and the other end is connected to the inlet end of the first pipe 31.

[0089] When the patient wants to stop treatment (such as getting up to go to the bathroom), the first pipe 31 can be separated from the second pipe 32. At this time, the outlet end of the first pipe 31 is closed, the discharge hole 311 is opened, and the first pipe 31 can control the flow rate of exhaust. The ventilation treatment device can work normally without alarming due to leakage or pipe detachment, thereby not affecting the bed partner. Moreover, the ventilation treatment device can be stopped at any time without affecting other activities of the patient. It is easy to operate, convenient to use, safe and hygienic.

[0090] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0091] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0092] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A pipe assembly, characterized in that: The pipe assembly comprises a first pipe member (31) and a second pipe member (32), the pipe assembly having a connection state in which the first pipe member (31) and the second pipe member (32) are coaxially plugged together and a separation state in which the first pipe member (31) and the second pipe member (32) are separated from each other, the first pipe member (31) having an inlet end for connecting to a medium source and an outlet end for connecting to the second pipe member (32); The first pipe (31) has a discharge hole (311), and the discharge hole (311) is configured such that: in the connected state, the discharge hole (311) is closed to allow the medium from the medium source to enter the second pipe (32); in the separated state, the discharge hole (311) is opened to allow the medium from the medium source to be discharged from the discharge hole (311) to the outside; The pipe assembly comprises a valve structure, wherein the valve structure is configured as follows: in the connected state, the valve structure opens the outlet end of the first pipe member (31) to allow the medium from the medium source to enter the second pipe member (32); in the separated state, the valve structure closes the outlet end to allow the medium from the medium source to be discharged from the discharge hole (311) to the outside.

2. The pipe assembly according to claim 1, characterized in that The valve structure comprises a valve plate (33) rotatably arranged in the first pipe member (31), the rotation axis of the valve plate (33) being perpendicular to the axial direction of the first pipe member (31), and the valve plate (33) being rotatable between a first position closing the discharge hole (311) and opening the outlet end of the first pipe member (31) and a second position opening the discharge hole (311) and closing the outlet end of the first pipe member (31), wherein: The valve plate (33) is arranged such that when in the second position, the edge of the valve plate (33) abuts against the inner wall surface of the first pipe member (31), and the discharge hole (311) is provided on the pipe wall of the first pipe member (31) or on the valve plate (33); or The valve plate (33) is arranged such that, when in the second position, there is a gap between the edge of the valve plate (33) and the inner wall surface of the first pipe member (31), and the gap forms the discharge hole (311).

3. The pipe assembly according to claim 1, characterized in that The valve structure comprises a valve core (34) movably arranged in the first pipe member (31) along the axial direction of the first pipe member (31); the discharge hole (311) is opened on the pipe wall of the first pipe member (31); the second pipe member (32) is opened with a medium flow channel (321); the pipe assembly is configured as follows: in the connected state, the valve core (34) moves to the upstream of the discharge hole (311) along the medium flow direction; the part of the second pipe member (32) extending into the first pipe member (31) together with the valve core (34) constitutes the valve structure to close the discharge hole (311); the first pipe member (31) is connected to the second pipe member (32) through the medium flow channel (321); in the separated state, the valve core (34) moves to the downstream of the discharge hole (311) along the medium flow direction to close the outlet end of the first pipe member (31).

4. The pipe assembly according to any one of claims 1 to 3, characterized in that: The pipe assembly comprises a connection structure for connecting the first pipe member (31) and the second pipe member (32), wherein the connection structure is configured to prevent the first pipe member (31) and the second pipe member (32) from being separated from each other when in the connected state; and / or In the connected state, the first pipe member (31) and the second pipe member (32) are capable of rotating relative to each other.

5. The pipe assembly according to claim 4, characterized in that The connection structure comprises a matching buckle (312) and a slot (322); the buckle (312) is arranged on one of the first pipe member (31) and the second pipe member (32); and the slot (322) is arranged on the other of the first pipe member (31) and the second pipe member (32).

6. The pipe assembly according to claim 5, characterized in that The tube assembly comprises a limiting member, which is used to prevent the buckle (312) from being disengaged from the clamping slot (322) when being clamped in the clamping slot (322).

7. The pipe assembly according to claim 6, characterized in that The clamping groove (322) is arranged on the outer wall surface of the second pipe member (32); the buckle (312) is rotatably connected to the outer wall surface of the first pipe member (31); the buckle (312) is configured to be able to swing along the radial direction of the first pipe member (31) to engage with or separate from the clamping groove (322); the limiting member is a ring (35) movably sleeved on the outside of the first pipe member (31) or the second pipe member (32) along the axial direction of the first pipe member (31); or The clamping groove (322) is an L-shaped groove opened on the tube wall of the second tube (32), and the L-shaped groove includes an axial part and a radial part. The buckle (312) is a columnar member protrudingly arranged on the tube wall of the first tube (31), and the columnar member can enter the axial part and move to the radial part to achieve clamping when the first tube (31) and the second tube (32) are plugged together; the limiting member is a protrusion (323) arranged in the radial part, and the protrusion (323) can releasably stop the columnar member.

8. The pipe assembly according to claim 4, characterized in that The connection structure comprises a first protrusion (314) and a second protrusion (324) that match each other. The first protrusion (314) is arranged on the inner wall surface or the outer wall surface of the first pipe (31), and the second protrusion (324) is arranged on the outer wall surface or the inner wall surface of the second pipe (32). The first protrusion (314) and the second protrusion (324) are arranged to be able to be connected or separated by relative rotation of the first pipe (31) and the second pipe (32).

9. The tube assembly according to claim 4, characterized in that The connection structure comprises a first magnet and a second magnet having opposite magnetic poles, wherein the first magnet is arranged on one of the first pipe (31) and the second pipe (32), and the second magnet is arranged on the other of the first pipe (31) and the second pipe (32); or The connection structure comprises a first thread and a second thread that match each other, wherein the first thread is arranged on one of the first pipe member (31) and the second pipe member (32), and the second thread is arranged on the other of the first pipe member (31) and the second pipe member (32).

10. A breathing mask, characterized in that: The breathing mask comprises a frame (211), a cushion (212) and a tube assembly as described in any one of claims 1 to 9, wherein the cushion (212) is mounted on the frame (211) and defines a breathing cavity together with the frame (211), and the tube assembly is connected to the frame (211) through the second pipe (32) and communicates with the breathing cavity.

11. A ventilation therapy device, characterized in that: The ventilation therapy device comprises the breathing mask of claim 10.

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