A heated breathing circuit
By introducing a fixing mechanism and a universal mechanism into the heated breathing tubing, the problem of easy loosening between the external plug and the breathing tubing plug is solved, achieving a stable connection of the plug and a reliable heating effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN LANGSHUN MEDICAL EQUIPMENT CO LTD
- Filing Date
- 2025-12-25
- Publication Date
- 2026-06-19
AI Technical Summary
In existing heated breathing tubing systems, the external plug and the plug of the breathing tubing are prone to loosening, leading to poor contact.
A heated breathing tube was designed, employing a fixing mechanism including a U-shaped frame, a movable plate, a torsion spring, and a universal joint. The movable plate rebounds due to the elasticity of the torsion spring, and the contact seat of the movable plate tightly fits the external plug. Combined with the self-adaptability of the universal joint, the plug is securely connected.
It effectively prevents the plug from loosening and separating during use, ensures the stable and reliable operation of the heating and breathing circuit, avoids poor contact, and enhances the stability of the connection.
Smart Images

Figure CN224370412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of breathing tubing technology, and in particular to a heated breathing tubing. Background Technology
[0002] Heated breathing tubing is a technology that maintains the temperature of airflow through heating. It is mainly used in ventilators or humidification therapy devices to prevent condensation (by heating the gas inside the tubing with a built-in heating wire to prevent condensation caused by changes in room temperature). There are two types of heated breathing tubing: one type supplies power and controls the heating wire of the breathing tubing by connecting an external plug to the heating wire plug on the surface of the tubing; the other type involves inserting the breathing tubing plug into the plug of the therapy device (or ventilator), while the heating wire plug contacts the plug on the device to connect and supply power.
[0003] However, in practical applications, there are still some unresolved problems. The following are some common problems with heated breathing tubing: When connecting the existing external plug and the heating wire plug of the breathing tubing, the external plug (male plug) is usually inserted into the female plug (heating wire plug) of the breathing tubing. However, it is easy to loosen during use, and the two are easy to separate, resulting in poor contact. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] In view of the problems existing in the above and / or a certain existing heated breathing circuit, this utility model is proposed.
[0006] Therefore, the problem to be solved by this utility model is how to solve the problem that when connecting the external plug and the plug of the breathing tube, the external plug (male plug) is usually inserted into the female plug of the breathing tube, but it is easy to loosen during use, the two are easy to separate, and poor contact is likely to occur between them.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a heated breathing tubing, comprising: a tubing body, with connectors at both ends of the tubing body; a heating wire for heating is wound and fixed around the surface of the tubing body; a heating wire plug is fixed to the surface of one of the connectors; rings are fixed to the sides of the two connectors that are close to each other; a U-shaped plate is fixed to the surface of the heating wire plug; and a fixing mechanism, comprising two U-shaped frames and two movable plates; the two frames are respectively fixed to the two sides of the U-shaped plate; the same rod is rotatably connected to the inner walls of the two sides of the frames; two fixing rings are fixed to one side of each of the two movable plates; the two fixing rings are fixedly sleeved on the rod; and a fitting mechanism is provided at one end of each movable plate.
[0008] As a preferred embodiment of the heated breathing tubing of this utility model, the fixing mechanism further includes a torsion spring, which is sleeved on the rod, and the two ends of the torsion spring abut against one side of the movable plate and one side of the frame, respectively.
[0009] As a preferred embodiment of the heated breathing tubing of this utility model, the fitting mechanism includes multiple T-shaped rods and multiple springs. One end of the movable plate is provided with multiple movable holes. The outer sides of the multiple T-shaped rods are slidably connected to the inner walls of the multiple movable holes. The multiple springs are respectively sleeved on the surface of the multiple T-shaped rods. One end of the T-shaped rod is provided with a fitting seat. A universal mechanism is provided between the T-shaped rod and the fitting seat.
[0010] As a preferred embodiment of the heated breathing tubing of this utility model, the universal mechanism includes a universal seat, a universal ball, and a connecting rod. The universal seat is fixed to one end of the T-shaped rod. The two ends of the spring respectively abut against the sides of the universal seat and the movable plate that are close to each other. A ball groove is provided in the universal seat, and the universal ball is located in the ball groove. The connecting rod is fixed to one side of the universal ball, and the fitting seat is fixed to the other end of the connecting rod.
[0011] As a preferred embodiment of the heated breathing tubing of this utility model, the outer side of the tubing body is wrapped with a sheath, and the heating wire is located between the sheath and the tubing body.
[0012] In a preferred embodiment of the heated breathing tubing of this utility model, a second hook and loop fastener is fixed to one end of the sheath, and a second loop and loop fastener is fixed to the inner side of one end of the sheath, wherein the hook and loop fastener are bonded together.
[0013] As a preferred embodiment of the heated breathing tubing of this utility model, the outer surfaces of both rings are fixed with a first hook and loop fastener, and one side of each end of the sheath is fixed with a first hook and loop fastener, and the first hook and loop fastener are bonded together.
[0014] As a preferred embodiment of the heated breathing tubing of this utility model, a rubber pad is fixed on one side of the fitting seat, and the surface of the rubber pad is fixed with anti-slip texture.
[0015] In a preferred embodiment of the heated breathing tubing of this utility model, the number of T-shaped rods and springs is the same.
[0016] In a preferred embodiment of the heated breathing tubing of this utility model, the sheath is made of heat-insulating material.
[0017] The beneficial effects of this utility model are as follows: By setting a fixing mechanism and utilizing the elastic effect of the torsion spring, after the external plug is inserted into the heating wire plug, the hand pressing the movable plate is released, and the torsion spring causes the movable plate to spring back. The fitting seat at one end of the movable plate tightly fits the external plug, effectively preventing the plug from loosening and separating during use, avoiding poor contact, and ensuring the stable and reliable operation of the heating and breathing pipeline.
[0018] When the fitting seat contacts the external plug, the T-shaped rod slides in the movable hole as the torsion spring applies pressure, and the spring is compressed, achieving adaptive fitting. At the same time, the universal ball in the universal mechanism rotates freely in the ball groove of the universal seat, allowing the fitting seat to rotate in multiple directions to better adapt to the shape of the external plug surface, further enhancing the fitting effect and ensuring the stability of the fixation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the main structure of the heated breathing tubing.
[0021] Figure 2 A schematic diagram of the structure of the heated breathing tubing in its unsheathed state.
[0022] Figure 3 A partial structural diagram of the heated breathing tubing.
[0023] Figure 4 A schematic diagram of the plug structure for heating the breathing tubing.
[0024] Figure 5 A schematic diagram of the fixing mechanism for the heated breathing tubing.
[0025] Figure 6A schematic diagram of the fitting mechanism for heating the breathing tubing.
[0026] Figure 7 A cross-sectional schematic diagram of the fitting mechanism for the heated breathing tubing.
[0027] Figure 8 A schematic diagram of the structure of the heating breathing tube sheath, the second hook-and-loop fastener, and the first hook-and-loop fastener.
[0028] In the diagram: 1. Main pipe body; 11. Connector; 12. Ring body; 13. Heating wire plug; 14. U-shaped plate; 15. First Velcro hook side; 2. Sheath; 21. Second Velcro hook side; 22. First Velcro hook side; 3. Fixing mechanism; 31. Frame; 32. Movable plate; 33. Rod; 34. Torsion spring; 4. Fitting mechanism; 41. T-shaped rod; 42. Spring; 43. Fitting seat; 431. Rubber pad; 44. Universal mechanism; 441. Universal seat; 442. Universal ball; 443. Connecting rod. Detailed Implementation
[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0032] Example 1, referring to Figures 1-8 This is the first embodiment of the present invention. This embodiment provides a heated breathing tube, including a tube body 1, with connectors 11 at both ends of the tube body 1. A heating wire for heating is fixedly wound around the surface of the tube body 1. A heating wire plug 13 is fixedly fixed to the surface of one of the connectors 11 (the heating wire and the heating wire plug 13 are electrically connected). A ring body 12 is fixed to the side of the two connectors 11 that are close to each other. A U-shaped plate 14 is fixed to the surface of the heating wire plug 13.
[0033] The fixing mechanism 3 includes two U-shaped frames 31 and two movable plates 32. The two frames 31 are fixed to both sides of the U-shaped plate 14. The inner walls of both sides of the frames 31 are rotatably connected to the same rod 33 through bearings. Two fixing rings are fixed on one side of each of the two movable plates 32. The two fixing rings are fixedly sleeved on the rod 33. One end of the movable plate 32 is provided with a fitting mechanism 4.
[0034] The fixing mechanism 3 also includes a torsion spring 34, which is sleeved on the rod 33. The two ends of the torsion spring 34 abut against one side of the movable plate 32 and one side of the frame 31, respectively.
[0035] By setting a fixing mechanism 3 and utilizing the elasticity of the torsion spring 34, after the external plug is inserted into the heating wire plug 13, the hand pressing the movable plate 32 is released, and the torsion spring 34 causes the movable plate 32 to spring back. The contact seat 43 at one end of the movable plate 32 fits tightly against the external plug, effectively preventing the plug from loosening and separating during use, avoiding poor contact, and ensuring the stable and reliable operation of the heating breathing pipeline.
[0036] Specifically, the bonding mechanism 4 includes multiple T-shaped rods 41 and multiple springs 42. One end of the movable plate 32 is provided with multiple movable holes. The outer sides of the multiple T-shaped rods 41 are slidably connected to the inner walls of the multiple movable holes respectively. The multiple springs 42 are respectively sleeved on the surface of the multiple T-shaped rods 41. One end of the T-shaped rod 41 is provided with a bonding seat 43. A universal mechanism 44 is provided between the T-shaped rod 41 and the bonding seat 43. The number of T-shaped rods 41 and springs 42 is the same.
[0037] When the torsion spring 34 applies pressure, the T-shaped rod 41 slides within the movable hole, and the spring 42 is compressed, thus achieving an adaptive fit.
[0038] Specifically, the universal mechanism 44 includes a universal seat 441, a universal ball 442, and a connecting rod 443. The universal seat 441 is fixed to one end of the T-shaped rod 41. The two ends of the spring 42 abut against the sides of the universal seat 441 and the movable plate 32 respectively. A ball groove is provided in the universal seat 441, and the universal ball 442 is located in the ball groove. The connecting rod 443 is fixed to one side of the universal ball 442, and the fitting seat 43 is fixed to the other end of the connecting rod 443.
[0039] The omnidirectional ball 442 can rotate freely within the ball groove, allowing the fitting seat 43 to rotate in multiple directions, better adapting to the surface of the external plug and achieving a better fitting effect.
[0040] The heating wire is existing technology, and the working principle of this part is also existing technology, which can be clearly understood by those skilled in the art, and will not be described in detail here.
[0041] Example 2, refer to Figures 1 to 8This is the second embodiment of the present invention, which is based on the previous embodiment.
[0042] Specifically, the outer side of the main pipe body 1 is wrapped with a sheath 2, and the heating wire is located between the sheath 2 and the main pipe body 1.
[0043] The sheath 2 can insulate the main body of the pipeline 1, reducing the loss of heat from the main body of the pipeline 1 and the surface of the heating wire.
[0044] Specifically, one end of the sheath 2 is fixed with a second hook and loop fastener 21, and the inner side of one end of the sheath 2 is fixed with a second hook and loop fastener, and the second hook and loop fastener 21 are bonded together.
[0045] The second hook and loop fastener 21 fixed at one end of the sheath 2 is bonded to the second hook and loop fastener rough side on the inner side of the other end, allowing it to be closed.
[0046] Specifically, the outer surfaces of both rings 12 are fixed with a first hook and loop fastener 15, and the two ends of the sheath 2 are fixed with a first hook and loop fastener 22 on one side. The first hook and loop fastener 15 and the first hook and loop fastener 22 are bonded together.
[0047] The sheath 2 is wrapped around the surface of the heating wire and the main body of the pipe 1, and the first hook and loop fasteners 22 at both ends and the first hook and loop fasteners 15 on the surface of the two rings 12 are bonded together to fix the two ends of the sheath 2.
[0048] Specifically, a rubber pad 431 is fixed to one side of the fitting seat 43, and the surface of the rubber pad 431 is fixed with anti-slip texture.
[0049] The rubber pad 431 fixed to one side of the fitting seat 43 and its anti-slip texture further increase the friction between the rubber pad and the external plug, making the fixation more secure.
[0050] Specifically, the material of the sheath 2 is thermal insulation material.
[0051] The sheath 2 is made of heat-insulating material, which effectively insulates against heat and reduces heat loss.
[0052] When in use, the sheath 2 is wrapped around the surface of the heating wire and the main body of the pipe 1, and the first hook and loop fasteners 22 at both ends and the first hook and loop fasteners 15 on the surface of the two rings 12 are glued together. Then, the second hook and loop fasteners 21 fixed at one end of the sheath 2 are glued together with the second hook and loop fasteners on the inner side of one end to close and fix the sheath 2.
[0053] Then connect both ends of the main pipe 1 to the external equipment (through connector 11). Next, press the movable plate 32 with two fingers. The movable plate 32 rotates through the rod 33, causing one end of the movable plate 32 to lift up. At this time, the torsion spring 34 deforms. Insert the external plug (male plug) into the heating wire plug 13 with the other hand. Then release the hand that was pressing the movable plate 32. Under the action of the torsion spring 34, the movable plate 32 rebounds. The fitting seat 43 at one end of the movable plate 32 will contact the external plug first. As the torsion spring 34 applies pressure, the T-shaped rod 41 will slide in the movable hole. The spring 42 is compressed, which plays a self-adaptive fitting role. At the same time, the universal mechanism 44 plays a role. The universal ball 442 can rotate freely in the ball groove. In this way, the fitting seat 43 can rotate in multiple directions to better adapt to the surface of the external plug and achieve a better fitting effect. The rubber pad 431 fixed on one side of the fitting seat 43 and its anti-slip texture further increase the friction between it and the external plug, making the fixation more stable.
[0054] After the heating wire plug 13 is inserted into the power supply, the heating wire starts to work and heats the gas in the main body of the pipeline 1. According to actual needs, the heating temperature can be adjusted by the power supply and controller connected to the external plug. The sheath 2 can keep the main body of the pipeline 1 warm and reduce the loss of heat from the main body of the pipeline 1 and the surface of the heating wire. The material of the sheath 2 is preferably silicone rubber, but cloth, rubber-aluminum foil composite material, etc. can also be used. The specific material can be selected according to actual needs.
[0055] The material specifications of spring 42 and torsion spring 34 can be selected according to actual needs, and the surface of the heating wire has an insulating sheath.
[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A heated breathing tubing, characterized in that: include, The pipeline body (1) has connectors (11) at both ends. A heating wire for heating is fixedly wound around the surface of the pipeline body (1). A heating wire plug (13) is fixed to the surface of one of the connectors (11). A ring (12) is fixed to the side of each of the two connectors (11) that is close to each other. A U-shaped plate (14) is fixed to the surface of the heating wire plug (13). The fixing mechanism (3) includes two U-shaped frames (31) and two movable plates (32). The two frames (31) are fixed to both sides of the U-shaped plate (14). The inner walls of both sides of the frame (31) are rotatably connected to the same rod (33). Two fixing rings are fixed on one side of each of the two movable plates (32). The two fixing rings are fixedly sleeved on the rod (33). One end of the movable plate (32) is provided with a fitting mechanism (4).
2. The heated breathing tubing as described in claim 1, characterized in that: The fixing mechanism (3) also includes a torsion spring (34), which is sleeved on the rod (33). The two ends of the torsion spring (34) abut against one side of the movable plate (32) and one side of the frame (31), respectively.
3. The heated breathing tubing as described in claim 2, characterized in that: The bonding mechanism (4) includes multiple T-shaped rods (41) and multiple springs (42). One end of the movable plate (32) is provided with multiple movable holes. The outer sides of the multiple T-shaped rods (41) are slidably connected to the inner walls of the multiple movable holes respectively. The multiple springs (42) are respectively sleeved on the surface of the multiple T-shaped rods (41). One end of the T-shaped rod (41) is provided with a bonding seat (43). A universal mechanism (44) is provided between the T-shaped rod (41) and the bonding seat (43).
4. The heated breathing tubing as described in claim 3, characterized in that: The universal mechanism (44) includes a universal seat (441), a universal ball (442), and a connecting rod (443). The universal seat (441) is fixed to one end of the T-shaped rod (41). The two ends of the spring (42) abut against the sides of the universal seat (441) and the movable plate (32) respectively. A ball groove is provided in the universal seat (441). The universal ball (442) is located in the ball groove. The connecting rod (443) is fixed to one side of the universal ball (442). The fitting seat (43) is fixed to the other end of the connecting rod (443).
5. The heated breathing tubing as described in claim 1, characterized in that: The outer side of the main body of the pipeline (1) is covered with a sheath (2), and the heating wire is located between the sheath (2) and the main body of the pipeline (1).
6. The heated breathing tubing as described in claim 5, characterized in that: One end of the sheath (2) is fixed with a second hook and loop fastener (21), and the inner side of one end of the sheath (2) is fixed with a second hook and loop fastener. The second hook and loop fastener (21) are bonded together.
7. The heated breathing tubing as described in claim 6, characterized in that: The outer surfaces of both rings (12) are fixed with a first hook and loop fastener (15), and the two ends of the sheath (2) are fixed with a first hook and loop fastener (22). The first hook and loop fastener (15) and the first hook and loop fastener (22) are bonded together.
8. The heated breathing tubing as described in claim 4, characterized in that: A rubber pad (431) is fixed to one side of the fitting seat (43), and the surface of the rubber pad (431) is fixed with anti-slip texture.
9. The heated breathing tubing as described in claim 8, characterized in that: The number of T-shaped rods (41) and springs (42) is the same.
10. The heated breathing tubing as described in claim 7, characterized in that: The sheath (2) is made of thermal insulation material.