A scalable heated tubing and respiratory therapy apparatus

Abstract

The application relates to the technical field of air path connecting pipelines of respiratory treatment equipment, and specifically provides a telescopic heating pipeline and respiratory treatment equipment. The telescopic heating pipeline comprises an air inlet pipe, a telescopic pipe body and an air outlet pipe which are connected in sequence along an axial direction, and a heating wire located in the air inlet pipe, the telescopic pipe body and the air outlet pipe; the telescopic pipe body is provided with a plurality of telescopic units which are integrally formed in sequence along the axial direction, the plurality of telescopic units each comprise a first connecting ring rib, a first conical ring wall, a second connecting ring rib and a second conical ring wall which are connected in sequence, the first conical ring wall and the second conical wall are arranged at an included angle, and the first conical ring wall and the second conical wall are both arranged as elastic structures. The telescopic pipe body has significantly enhanced compression performance in the axial direction, overcomes the defects that the existing connecting pipelines cannot realize effective compression and occupy large transportation and storage space, and effectively reduces transportation cost, storage space and logistics difficulty.

Description

Technical Field

[0001] This application relates to the field of airway connection pipeline technology for respiratory therapy equipment, and more particularly to a retractable heating pipeline and a respiratory therapy equipment. Background Technology

[0002] Respiratory therapy equipment is usually equipped with multiple connecting lines, especially between the equipment itself and the user. These connecting lines also need to heat the gas supplied to the user and monitor its temperature and humidity.

[0003] However, existing connecting pipes are usually designed as solid units to facilitate adaptive adjustments between users and respiratory therapy equipment at different angles and distances. This gives them tensile and multi-angle bending capabilities, but they lack compression capabilities. However, to facilitate the transportation of connecting pipes, they need to be compressed to reduce space occupation.

[0004] Therefore, existing technologies have defects and shortcomings, and need further improvement and development. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a retractable heating pipeline and a respiratory therapy device, which aims to solve the problem of poor axial compression performance of the connecting pipeline of the respiratory therapy device in the prior art.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: a retractable heating pipeline for a respiratory therapy device, comprising: an inlet pipe, a retractable tube body, and an outlet pipe connected sequentially along the axial direction, and a heating wire located inside the inlet pipe, the retractable tube body, and the outlet pipe;

[0007] The telescopic tube body is provided with a plurality of telescopic units integrally formed along the axial direction. Each of the telescopic units includes a first connecting ring rib, a first conical ring wall, a second connecting ring rib, and a second conical ring wall connected in sequence. The first conical ring wall and the second conical wall are set at an included angle, and both the first conical ring wall and the second conical wall are set as elastic structures.

[0008] Optionally, the retractable heating pipe has an axial section, in which the first conical ring wall and the second connecting ring rib have a first included angle, and the second conical ring wall and the second connecting ring rib have a second included angle, wherein the first included angle is smaller than the second included angle.

[0009] Optionally, the retractable heating pipe has an axially compressed state and a working state, wherein the second included angle when the retractable heating pipe is in the axially compressed state is smaller than the second included angle when the retractable heating pipe is in the working state.

[0010] Optionally, the outer surface of the junction of the first conical ring wall, the second connecting ring rib, and the second conical ring wall is set to a rounded corner structure.

[0011] Optionally, the intake pipe includes an integrally formed external intake interface section, a detection connection section, and an internal intake interface section. The detection connection section and the internal intake interface section are coaxially arranged. The external intake interface section is connected to the junction of the detection connection section and the internal intake interface section, and the external intake interface section and the detection connection section are arranged at an angle.

[0012] Optionally, the angle between the air intake external interface section and the detection connection section is set to 45°.

[0013] Optionally, the detection connection section is provided with a detection connection terminal, which is used to block the detection connection section. One end of the detection connection terminal facing the air inlet section is used to connect the heating wire and the temperature and humidity sensor, and the other end of the detection connection terminal is used as a detection output terminal.

[0014] Optionally, the retractable heating pipe further includes:

[0015] An auxiliary fixing component is located in the telescopic tube body and is positioned close to the air outlet pipe. The auxiliary fixing component is snapped between the first conical ring wall, the second connecting ring rib, and the second conical ring wall. One end of the heating wire is fixed to the auxiliary fixing component.

[0016] Optionally, the auxiliary fastener includes:

[0017] A fixing bracket is used to fix the heating wire;

[0018] The snap-fit ​​end is located at the end of the fixed bracket and snaps between the first conical ring wall, the second connecting ring rib, and the second conical ring wall.

[0019] The snap-fit ​​end has a first face and a second face. The first face is used to contact the first conical ring wall, and the second face is used to contact the second conical ring wall. The first face and the first conical ring wall are set at the same tilt angle, and the second face and the second conical ring wall are set at the same tilt angle. The fixing bracket is set in a V shape.

[0020] The technical solution adopted by this application to solve the technical problem is as follows: a respiratory therapy device, which includes the retractable heating pipeline as described above.

[0021] Compared with existing technologies, this application provides a telescopic heating pipeline and a respiratory therapy device. By setting several telescopic units integrally formed along the axial direction on the telescopic tube body, each telescopic unit includes a first connecting ring rib, a first conical ring wall, a second connecting ring rib, and a second conical ring wall connected in sequence. The first and second conical ring walls are set at an angle and are both elastic structures, which significantly enhances the compressibility of the telescopic tube body in the axial direction. This overcomes the shortcomings of existing connecting pipelines, such as the inability to achieve effective compression and the large space required for transportation and storage, effectively reducing transportation costs, storage space, and logistics difficulties. In addition, the elastic structure of the first and second conical ring walls makes the telescopic tube body less prone to plastic deformation or fatigue during repeated stretching and compression. This design avoids damage and ensures shape stability and structural integrity after long-term use, significantly extending the service life of the retractable heating tubing. Simultaneously, by installing a heating wire inside the retractable tube, stable heating can be provided during stretching or compression, maintaining a stable temperature for the gas delivered to the user. This solves the problem of traditional retractable structures easily bending or even breaking the heating wire due to shape changes, effectively ensuring the heating efficiency and stability of gas delivery and greatly improving patient comfort and safety. Furthermore, due to the good axial elastic deformation capacity of the retractable tube, it can adapt to different spatial distances and angles between the respiratory therapy equipment and the patient during actual use, significantly improving the adaptability and ease of use of the retractable heating tubing. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the retractable heating pipeline provided in this application;

[0023] Figure 2 This is a side view of the retractable heating pipeline provided in this application in its use state;

[0024] Figure 3 This is a side view of the retractable heating pipe provided in this application in a compressed state;

[0025] Figure 4 This is an axial cross-sectional view of the retractable heating pipeline provided in this application when it is in use;

[0026] Figure 5 It is provided in this application Figure 4 Enlarged structural diagram at point A in the diagram;

[0027] Figure 6 It is provided in this application Figure 4 Enlarged structural diagram at point B in the diagram;

[0028] Figure 7This is an axial cross-sectional view of the retractable heating pipeline provided in this application when it is in a compressed state.

[0029] Figure 8 It is provided in this application Figure 7 A magnified structural diagram at point C.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Telescopic heating pipe; 11. Air inlet pipe; 12. Telescopic pipe body; 13. Air outlet pipe; 14. Heating wire; 15. Telescopic unit; 16. Auxiliary fixing component; 111. External air inlet section; 112. Detection connection section; 113. Internal air inlet section; 114. Detection connection terminal; 151. First connecting ring rib; 152. First conical ring wall; 153. Second connecting ring rib; 154. Second conical ring wall; 161. Fixing bracket; 162. Snap-fit ​​end; 163. First face part; 164. Second face part. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] Please refer to the following: Figures 1 to 5 The first embodiment of this application provides a retractable heating pipeline 10, which is used in a respiratory therapy device to transmit the gas output by the respiratory therapy device to the user end. The retractable heating pipeline 10 includes an inlet pipe 11, a telescopic pipe body 12, and an outlet pipe 13 connected sequentially along the axial direction, and a heating wire 14 located in the inlet pipe 11, the telescopic pipe body 12, and the outlet pipe 13. The telescopic pipe body 12 is provided with a plurality of telescopic units 15 integrally formed sequentially along the axial direction. Each of the plurality of telescopic units 15 includes a first connecting ring rib 151, a first conical ring wall 152, a second connecting ring rib 153, and a second conical ring wall 154 connected sequentially. The first conical ring wall 152 and the second conical wall are arranged at an included angle, and both the first conical ring wall 152 and the second conical wall are configured as elastic structures.

[0036] This significantly enhances the axial compression performance of the telescopic tube 12, overcoming the shortcomings of existing connecting pipes that cannot achieve effective compression and occupy large transportation and storage space, effectively reducing transportation costs, storage space, and logistics difficulties. Furthermore, the elastic structure of the first conical ring wall 152 and the second conical ring wall 154 prevents the telescopic tube 12 from undergoing plastic deformation or fatigue damage during repeated stretching and compression, ensuring shape stability and structural integrity after long-term use and significantly extending the service life of the telescopic heating pipe 10. Simultaneously, by through-hole reinforcement within the telescopic tube 12… The heating wire 14 can provide stable heating simultaneously when the telescopic tube 12 is stretched or compressed, so that the gas delivered to the user end maintains a stable temperature. This solves the problem that the heating wire 14 is prone to bending or even breaking due to shape changes in traditional telescopic structures, thus effectively ensuring the heating efficiency and stability of gas delivery and greatly improving the patient's treatment comfort and safety. Furthermore, since the telescopic tube 12 has good axial elastic deformation capability, it can adapt to different spatial distances and angles between the respiratory therapy equipment and the patient in actual use, which significantly improves the adaptability and ease of use of the telescopic heating tube 10.

[0037] When several telescopic units 15 are integrally formed along the axial direction, the first connecting ring rib 151 of one telescopic unit 15 overlaps with the second connecting ring rib 153 of the other telescopic unit 15. That is, the telescopic tube body 12 includes the first connecting ring rib 151, the first conical ring wall 152, the second connecting ring rib 153, the second conical ring wall 154 (first connecting ring rib 151), the first conical ring wall 152, the second connecting ring rib 153, the second conical ring wall 154 (first connecting ring rib 151), the first conical ring wall 152, the second connecting ring rib 153, the second conical ring wall 154 (first connecting ring rib 151), the first conical ring wall 152, the second connecting ring rib 153, the second conical ring wall 154 (first connecting ring rib 151), thus ensuring the telescopic performance of the telescopic tube body 12.

[0038] Please refer to further details. Figures 6 to 8 In some embodiments, the expandable heating pipe 10 has an axial cross-section, in which the first conical annular wall 152 and the second connecting ring rib 153 have a first included angle β, and the second conical annular wall 154 and the second connecting ring rib 153 have a second included angle α, wherein the first included angle β is smaller than the second included angle α. By setting the first included angle β between the first conical annular wall 152 and the second connecting ring rib 153 to be smaller than the second included angle α between the second conical annular wall 154 and the second connecting ring rib 153 in the axial cross-section of the expansion unit 15, a more effective relative folding and contraction can be formed between the first conical annular wall 152 and the second conical annular wall 154 when each expansion unit 15 undergoes axial compression deformation, thereby improving the axial compression efficiency of the expansion unit 15 and effectively reducing the space occupied by the expandable heating pipe 10 after compression. Meanwhile, the differentiated angle design ensures that the telescopic unit 15 can achieve structural deformation in a more stable and orderly manner during compression and stretching, avoiding irregular twisting or uneven deformation of the telescopic tube 12 during telescopic deformation due to the same angle. This further improves the structural stability and reliability of the telescopic tube 12 during telescopic deformation. In addition, the optimized angle structure significantly reduces the mechanical stress on the heating wire 14 inside the telescopic heating pipeline 10 during telescopic deformation, effectively avoiding the risk of damage caused by frequent bending of the heating wire 14. This further ensures the long-term reliability of the heating wire 14 and the stability of gas delivery heating, thereby comprehensively improving the overall service life of the telescopic heating pipeline 10 and the safety performance of the respiratory therapy equipment.

[0039] In some embodiments, the retractable heating conduit 10 is in an axially compressed state (e.g., Figure 3 , Figure 7 and Figure 8 (as shown) and usage status (such as) Figure 1 , Figures 3 to 6 As shown in the figure, the second included angle α when the retractable heating pipe 10 is in the axial compression state is smaller than the second included angle α when the retractable heating pipe 10 is in the use state.

[0040] By designing the first included angle β between the first conical ring wall 152 and the second connecting ring rib 153 in the telescopic unit 15 to be smaller than the second included angle α between the second conical ring wall 154 and the second connecting ring rib 153, a differentiated deformation effect of the telescopic unit 15 under axial compression is achieved. When the telescopic tube is subjected to axial compressive force, the first conical ring wall 152 corresponding to the smaller first included angle β is more likely to fold and contract axially, thereby preferentially guiding and promoting the initial deformation of the telescopic unit 15, effectively reducing the force required for the telescopic tube 12 in the initial stage of compression, and improving the compression flexibility and initial compression efficiency of the telescopic tube 12; while the larger second included angle α gives the second conical ring wall 154 higher structural support rigidity, playing a stabilizing support role in the subsequent stage of compression deformation, effectively avoiding radial instability or excessive non-axial deformation of the telescopic unit 15 during axial compression, and ensuring the telescopic tube 12 The compression process proceeds smoothly and regularly along the axial direction, thereby improving the compression stability and structural reliability of the entire retractable heating pipe 10. Through the rational configuration of two included angles, one large and one small, the telescopic unit 15 achieves a clear and regular deformation path during axial compression and stretching recovery. This effectively avoids the stress concentration problem caused by random deformation of the internal heating wire 14, such as twisting or bending. It significantly reduces the risk of damage to the heating wire 14 due to repeated stretching and compression over a long period, extends the service life of the heating wire 14, and ensures the long-term stability of gas heating performance during respiratory therapy. Furthermore, the overall mechanical properties of the telescopic tube 12 are optimized, enabling the retractable heating pipe 10 to maintain a stable shape recovery capability after repeated stretching and compression deformation, effectively extending the service life of the retractable heating pipe 10 and improving its overall durability and long-term reliability.

[0041] Please refer to further details. Figure 5 , Figure 6 and Figure 8 In some embodiments, the outer surface of the junction of the first conical ring wall 152, the second connecting ring rib 153, and the second conical ring wall 154 is set with a rounded corner structure. This not only increases the structural strength of the retractable heating pipe 10, but also avoids collision damage during subsequent use.

[0042] Please refer to further details. Figure 5In some embodiments, the intake pipe 11 includes an integrally formed external intake interface section 111, a detection connection section 112, and an internal intake interface section 113. The detection connection section 112 and the internal intake interface section 113 are coaxially arranged. The external intake interface section 111 is connected to the junction of the detection connection section 112 and the internal intake interface section 113, and the external intake interface section 111 and the detection connection section 112 are arranged at an angle. By setting the angle between the external air intake section 111 and the detection connection section 112, it is convenient to flexibly adjust the spatial position between the external air intake source and the breathing circuit. This effectively avoids the problem of excessive bending angle or redundant length of the air intake pipe 11 when the external air intake section 111, the detection connection section 112, and the internal air intake section 113 are set along the same axis. This reduces the overall space occupied by the retractable heating pipe 10 and improves the rationality of the connection layout and ease of use. In addition, the one-piece molding structure design eliminates the need for multiple sections between traditional connectors. The risk of air leakage at the connection points caused by assembly is effectively reduced, improving the airtightness, mechanical strength, and overall reliability of the intake pipe 11. At the same time, the processing technology is simplified and the manufacturing cost is reduced. Furthermore, the angle setting between the intake external interface section 111 and the detection connection section 112 can effectively reduce the external tensile or torsional stress generated by the intake pipe 11 in actual use, reducing the risk of deformation or damage to the retractable heating pipe 10, improving the stability and durability of the retractable heating pipe 10 in long-term complex environments, and comprehensively optimizing the performance of the respiratory therapy equipment and the patient's user experience.

[0043] Furthermore, the angle between the air intake external interface section 111 and the detection connection section 112 is set to 45°, which can effectively reduce the intake resistance.

[0044] In some embodiments, the detection connection section 112 is provided with a detection connection terminal 114, which is used to block the detection connection section 112. One end of the detection connection terminal 114 facing the air inlet interface section 113 is used to connect the heating wire 14 and the temperature and humidity sensor, and the other end of the detection connection terminal 114 is used as a detection output terminal. This effectively ensures the monitoring of the temperature and humidity of the gas flowing in the retractable heating pipeline 10.

[0045] Please refer to further details. Figure 6In some embodiments, the retractable heating pipe 10 further includes an auxiliary fixing member 16, which is located in the retractable pipe body 12 and near the air outlet pipe 13. The auxiliary fixing member 16 is snapped between the first conical annular wall 152, the second connecting ring rib 153, and the second conical annular wall 154, and one end of the heating wire 14 is fixed to the auxiliary fixing member 16. By setting the auxiliary fixing member 16 inside the retractable pipe body 12 near the air outlet pipe 13 and firmly snapping the auxiliary fixing member 16 between the first conical annular wall 152, the second connecting ring rib 153, and the second conical annular wall 154, and simultaneously fixing one end of the heating wire 14 to the auxiliary fixing member 16, the heating wire 14 inside the retractable pipe body 12 can maintain a stable position during the axial extension and contraction of the retractable pipe body 12, avoiding displacement, excessive stretching, or twisting of the heating wire 14 due to repeated stretching or compression of the retractable pipe body 12; thereby effectively reducing the long-term stress on the heating wire 14. The risk of mechanical damage or structural fatigue failure during use is reduced, significantly improving the service life and long-term working stability of the heating wire 14. In addition, the stable snap-fit ​​structure between the auxiliary fixing component 16 and the inner wall of the telescopic unit 15 effectively disperses the axial stress concentration points that may exist between the heating wire 14 and the telescopic tube 12, further improving the overall durability and mechanical reliability of the telescopic heating pipeline 10, ensuring that the telescopic heating pipeline 10 maintains good functional performance in complex operating environments, and significantly enhancing the heating uniformity and safety of the gas delivered by the respiratory therapy equipment.

[0046] In some embodiments, the auxiliary fixing member 16 includes a fixing bracket 161 and a snap-fit ​​end 162. The fixing bracket 161 is used to fix the heating wire 14. The snap-fit ​​end 162 is located at the end of the fixing bracket 161 and snaps between the first conical annular wall 152, the second connecting ring rib 153, and the second conical annular wall 154. The snap-fit ​​end 162 has a first facet 163 and a second facet 164. The first facet 163 is used to contact the first conical annular wall 152, and the second facet 164 is used to contact the second conical annular wall 154. The first facet 163 and the first conical annular wall 152 are set at the same tilt angle, and the second facet 164 and the second conical annular wall 154 are set at the same tilt angle. The fixing bracket 161 is set in a V-shape.

[0047] By specifically configuring the auxiliary fixing member 16 with a V-shaped fixing bracket 161 and a snap-fit ​​end 162, wherein the first facet 163 of the snap-fit ​​end 162 is fitted with the first conical annular wall 152 and the second facet 164 is fitted with the second conical annular wall 154 at the same inclination angle, a tight fit between the auxiliary fixing member 16 and the inner wall of the telescopic unit 15 is achieved; through the mutually matching angle setting, it is ensured that the auxiliary fixing member 16 can be more firmly and stably snapped and positioned within the telescopic unit 15, effectively avoiding the loosening or positional displacement of the auxiliary fixing member 16 due to mismatched pipe wall angles during axial tension or compression, further improving the installation stability of the auxiliary fixing member 16; at the same time, the V-shaped... The fixed bracket 161 enables the heating wire 14 to be stably arranged along the fixed bracket 161 and provides effective lateral support, effectively reducing the risk of excessive bending or local stress concentration of the heating wire 14 during repeated extension and retraction of the telescopic tube 12, and significantly extending the service life of the heating wire 14. In addition, the integrated design structure between the fixed bracket 161 and the snap-fit ​​end 162 significantly improves the structural strength and stability of the overall auxiliary fixing component 16, effectively preventing fatigue damage to the connectors caused by long-term vibration or repeated deformation inside the telescopic heating tube 10, ensuring the high reliability and high safety of the overall structure of the breathing circuit under long-term operating conditions, and further optimizing the comprehensive performance of the respiratory therapy equipment.

[0048] Furthermore, the heating wire 14 is spirally arranged inside the telescopic tube 12, which not only ensures that the heating wire 14 and the telescopic tube 12 extend and retract synchronously, but also prevents the heating wire 14 from bending and breaking during extension and retraction.

[0049] The second embodiment of this utility model also provides a respiratory therapy device, which includes a retractable heating pipe 10 as described in the first embodiment of this application, thereby ensuring that the user can freely extend, retract, and bend the air supply pipe during use, thus facilitating the use of the respiratory therapy device; at the same time, when the respiratory therapy device is in the off state, the air supply pipe can be axially compressed, which is beneficial for the organization and storage of the wires and the device.

[0050] In summary, this application provides a retractable heating pipeline and a respiratory therapy device. The retractable heating pipeline includes an inlet pipe, a telescopic tube body, and an outlet pipe connected sequentially along the axial direction, as well as a heating wire located within the inlet pipe, the telescopic tube body, and the outlet pipe. The telescopic tube body is provided with a plurality of telescopic units integrally formed sequentially along the axial direction. Each of the telescopic units includes a first connecting ring rib, a first conical ring wall, a second connecting ring rib, and a second conical ring wall connected sequentially. The first conical ring wall and the second conical wall are arranged at an included angle, and both the first conical ring wall and the second conical wall are configured as elastic structures. By incorporating several integrally formed telescopic units along the axial direction on the telescopic tube, each telescopic unit includes a first connecting ring rib, a first conical ring wall, a second connecting ring rib, and a second conical ring wall connected in sequence. The first and second conical ring walls are angled together and both are elastic structures, resulting in significantly enhanced axial compression performance of the telescopic tube. This overcomes the shortcomings of existing connecting pipes, such as inability to achieve effective compression and large space requirements for transportation and storage, effectively reducing transportation costs, storage space, and logistics difficulties. Furthermore, the elastic structure of the first and second conical ring walls prevents plastic deformation or fatigue damage during repeated stretching and compression, ensuring long-term durability. The improved stability and structural integrity significantly extend the service life of the retractable heating tubing. Furthermore, by incorporating a heating wire running through the inside of the retractable tube, stable heating is provided simultaneously during stretching or compression, ensuring a stable temperature for the gas delivered to the user. This solves the problem of traditional retractable structures easily bending or breaking the heating wire due to shape changes, effectively guaranteeing the heating efficiency and stability of gas delivery and greatly improving patient comfort and safety. Moreover, due to the retractable tube's excellent axial elastic deformation capacity, it can adapt to different spatial distances and angles between the respiratory therapy equipment and the patient during actual use, significantly improving the adaptability and ease of use of the retractable heating tubing.

[0051] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A retractable heating pipe for use in a respiratory therapy device, characterized in that, include: An air inlet pipe, a telescopic pipe body, and an air outlet pipe are connected sequentially along the axial direction, and a heating wire is located inside the air inlet pipe, the telescopic pipe body, and the air outlet pipe; The telescopic tube body is provided with a plurality of telescopic units integrally formed along the axial direction. Each of the telescopic units includes a first connecting ring rib, a first conical ring wall, a second connecting ring rib, and a second conical ring wall connected in sequence. The first conical ring wall and the second conical wall are set at an included angle, and both the first conical ring wall and the second conical wall are set as elastic structures.

2. The retractable heating pipeline according to claim 1, characterized in that, The retractable heating pipeline has an axial cross section. In the axial cross section, the first conical ring wall and the second connecting ring rib have a first included angle, and the second conical ring wall and the second connecting ring rib have a second included angle. The first included angle is smaller than the second included angle.

3. The retractable heating pipeline according to claim 2, characterized in that, The retractable heating pipe has an axially compressed state and a working state. When the retractable heating pipe is in the axially compressed state, the second included angle is smaller than when the retractable heating pipe is in the working state.

4. The retractable heating pipeline according to claim 2, characterized in that, The outer surface of the junction of the first conical ring wall, the second connecting ring rib, and the second conical ring wall is set with a rounded corner structure.

5. The retractable heating pipeline according to claim 1, characterized in that, The intake pipe includes an integrally formed external intake interface section, a detection connection section, and an internal intake interface section. The detection connection section and the internal intake interface section are coaxially arranged. The external intake interface section is connected to the junction of the detection connection section and the internal intake interface section, and the external intake interface section and the detection connection section are arranged at an angle.

6. The retractable heating pipeline according to claim 5, characterized in that, The angle between the air intake external interface section and the detection connection section is set to 45°.

7. The retractable heating pipeline according to claim 5, characterized in that, The detection connection section is provided with a detection connection terminal, which is used to block the detection connection section. One end of the detection connection terminal facing the air intake inner interface section is used to connect the heating wire and the temperature and humidity sensor, and the other end of the detection connection terminal is used as a detection output terminal.

8. The retractable heating pipeline according to claim 1, characterized in that, The retractable heating pipeline also includes: An auxiliary fixing component is located in the telescopic tube body and is positioned close to the air outlet pipe. The auxiliary fixing component is snapped between the first conical ring wall, the second connecting ring rib, and the second conical ring wall. One end of the heating wire is fixed to the auxiliary fixing component.

9. The retractable heating pipeline according to claim 8, characterized in that, The auxiliary fastener includes: A fixing bracket is used to fix the heating wire; The snap-fit ​​end is located at the end of the fixed bracket and snaps between the first conical ring wall, the second connecting ring rib, and the second conical ring wall. The snap-fit ​​end has a first face and a second face. The first face is used to contact the first conical ring wall, and the second face is used to contact the second conical ring wall. The first face and the first conical ring wall are set at the same tilt angle, and the second face and the second conical ring wall are set at the same tilt angle. The fixing bracket is set in a V shape.

10. A respiratory therapy device, characterized in that, Includes the retractable heating pipe as described in any one of claims 1-9.

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