Ventilator circuit drying device

Abstract

This utility model relates to the field of ventilator technology, and in particular to a ventilator tubing drying device, comprising a connecting cylinder, a lower sealing gasket, a drying cylinder body, an upper sealing gasket, an assembly sealing ring, and an air passage cover; a connecting screw is provided in the middle of the connecting cylinder, the lower sealing gasket is sleeved on the lower end of the connecting screw, the drying cylinder body is sleeved on the connecting screw, and the upper sealing gasket is provided on the upper end face of the drying cylinder body; a connecting screw sleeve is provided at the lower end of the air passage cover, the air passage cover is provided with a cover inlet and a cover outlet, and a locking groove is provided around the periphery of the air passage cover; the drying cylinder body includes a shell and a filling functional body, a drying inlet is provided on the upper end face of the shell, a drying outlet is provided on the periphery of the shell, the drying inlet communicates with the cover inlet, the drying outlet communicates with the interior of the connecting cylinder, and the interior of the connecting cylinder communicates with the cover outlet. This invention solves the technical problems of the complex structure and high cost of existing ventilator tubing drying devices.

Description

Technical Field

[0001] This utility model relates to the field of ventilator technology, and in particular to a ventilator tubing drying device. Background Technology

[0002] In medical settings, ventilators are crucial treatment devices, and their tubing often retains moisture after use. If the ventilator tubing is not dried effectively and promptly, the residual moisture can easily breed bacteria and other microorganisms. This not only affects the normal use of the ventilator but may also cause secondary infections for patients, increasing their health risks.

[0003] Currently, there is a lack of simple devices on the market specifically designed for effectively drying ventilator tubing, making it difficult to meet the medical field's needs for cleaning and drying ventilator tubing. For example, Chinese Patent Publication No. CN112295076A discloses a ventilator tubing drying and sterilization device. This device includes a drying mechanism, a sterilization mechanism, a detection mechanism, and a controller. The drying mechanism is configured to dry the gas flowing through the tubing; the sterilization mechanism is configured to sterilize the airflow in the tubing; and the detection mechanism is configured to detect the gas in the drying and sterilization mechanisms and, based on the detection parameters, control the triggering of a supply signal to the controller.

[0004] The aforementioned drying and sterilization equipment is quite complex and costly, making it difficult to meet daily usage needs. Utility Model Content

[0005] Therefore, in view of the above problems, this utility model proposes a ventilator tubing drying device, which solves the technical problems of the existing ventilator tubing drying devices having a relatively complex structure and high cost.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a ventilator tubing drying device, comprising a connecting cylinder, a lower sealing gasket, a drying cylinder body, an upper sealing gasket, an assembly sealing ring, and an air passage cover;

[0007] A connecting screw is provided with an upward protrusion in the middle of the connecting cylinder. The lower sealing gasket is sleeved on the lower end of the connecting screw. The drying cylinder is sleeved on the connecting screw and abuts against the upper end of the lower sealing gasket. The upper sealing gasket is provided on the upper end surface of the drying cylinder.

[0008] The lower end of the air passage cover is provided with a connecting threaded sleeve that mates with the connecting screw. The air passage cover is provided with a cover inlet and a cover outlet that are threaded or snapped into the ventilator tubing. The periphery of the air passage cover is provided with a locking groove for locking and assembling a sealing ring. The air passage cover is connected to the connecting cylinder by the connecting threaded sleeve mates with the connecting screw. The air passage cover is sealed to the periphery of the connecting cylinder by assembling a sealing ring. The drying cylinder is sealed to the air passage cover by an upper sealing gasket.

[0009] The drying cylinder includes a shell and a filling functional body disposed inside the shell. A drying inlet communicating with the interior of the shell is provided on the upper end surface of the shell, and a drying outlet communicating with the interior of the shell is provided on the periphery of the shell. The drying inlet is connected to the cover inlet, and the drying outlet is connected to the interior of the connecting cylinder. The interior of the connecting cylinder is connected to the cover outlet.

[0010] Furthermore, a first partition ring and a second partition ring are respectively arranged from the center outward in the housing. The housing is divided into a first chamber, a second chamber and a third chamber from the inside out by the first partition ring and the second partition ring. The drying inlet is connected to the first chamber and the drying outlet is connected to the third chamber. The second chamber is connected to the first chamber and the third chamber respectively. The filling function body is disposed in the first chamber, the second chamber and the third chamber.

[0011] Furthermore, the filling material in the first chamber is polyester fiber nonwoven fabric, the filling material in the second chamber is coconut shell activated carbon particles, and the filling material in the third chamber is polytetrafluoroethylene microporous membrane.

[0012] Furthermore, the lower part of the first partition ring is provided with a first air passage hole, the upper end of the second partition ring is provided with a second air passage hole, and the drying outlet is located at the lower part of the outer side wall of the shell.

[0013] Furthermore, the housing includes an upper end plate, a lower end plate, an outer ring plate, and a central ring post sleeved on the connecting screw. The upper ends of the outer ring plate, the central ring post, the first spacer ring, and the second spacer ring are respectively welded to the upper end plate, and the lower ends of the outer ring plate, the central ring post, the first spacer ring, and the second spacer ring are respectively welded to the lower end plate.

[0014] Furthermore, the lower end of the connecting screw is fixedly connected to the lower end of the connecting cylinder.

[0015] Furthermore, the connecting cylinder is made of a transparent material.

[0016] Furthermore, a recess is provided on the upper end surface of the housing, and the upper sealing gasket is fitted into the recess.

[0017] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0018] 1. Multi-stage sealing is achieved by setting a lower sealing gasket, an upper sealing gasket, and assembling a sealing ring. The lower sealing gasket prevents air leakage at the connection between the connecting cylinder and the drying cylinder, the upper sealing gasket ensures a good seal between the drying cylinder and the vent cover, and the assembling of the sealing ring seals the vent cover and the circumference of the connecting cylinder. This effectively avoids gas leakage during the drying process, ensures that the drying gas can flow in the device according to the set path, and improves drying efficiency.

[0019] A connecting screw is installed in the middle of the connecting cylinder, and a matching connecting sleeve is installed at the lower end of the air cover. This threaded connection method is simple and reliable, facilitating the installation and removal of the air cover and the connecting cylinder. Simultaneously, the air cover has an inlet and an outlet for threaded or snap-fit ​​connection with the ventilator tubing, enabling convenient connection of the drying device to the ventilator tubing and improving ease of use.

[0020] The drying inlet of the drying cylinder is connected to the cap inlet, and the drying outlet is connected to the inside of the connecting cylinder, which in turn is connected to the cap outlet, forming a complete airflow channel. This allows the humid gas in the ventilator tubing to smoothly enter the drying cylinder for drying, and then the dried gas is discharged through the connecting cylinder and the air outlet cap, ensuring a smooth drying process.

[0021] In application, this device can be placed at the beginning and end of the ventilator tubing to achieve effective drying, or its settings can be adjusted according to actual needs. The selection of the filling element can also be based on specific requirements.

[0022] 2. The shell is divided into a first chamber, a second chamber, and a third chamber by a first and a second spacer ring, with filling elements disposed in different chambers. This layered structure allows humid gas to pass through filling elements with different properties sequentially as it passes through the drying cylinder, undergoing multi-stage drying treatment to gradually remove moisture from the gas and greatly improve the drying effect. The interconnected chambers create airflow pathways, achieving effective drying. Furthermore, the first chamber uses polyester fiber non-woven fabric as the filling element, which has good hygroscopicity and breathability, enabling it to quickly absorb most of the moisture in the gas, providing initial drying. The coconut shell activated carbon particles in the second chamber not only have a certain hygroscopic capacity but also adsorb odors and impurities in the gas, further purifying it. The polytetrafluoroethylene microporous membrane can intercept the vast majority of bacteria and tiny droplets.

[0023] 3. A first vent is provided at the lower part of the first partition ring, and a second vent is provided at the upper end of the second partition ring. The drying outlet is located at the lower part of the outer side wall of the shell. This method of setting vents at different positions makes the flow of gas between the chambers more reasonable. It ensures that the gas can fully contact the filling functional elements in each chamber, thereby improving the drying and sterilization effect.

[0024] 4. The housing design provides good stability, and its replaceability improves the ease of use of the device. The lower end of the connecting screw is fixedly connected to the lower end of the connecting cylinder. This fixed connection method makes the connecting screw and the connecting cylinder a whole, increasing the strength and stability of the connection structure, and also facilitating installation and disassembly, thus improving ease of use.

[0025] 5. A recess is provided on the upper end face of the housing, and the upper sealing gasket is fitted into the recess. This makes the upper sealing gasket more stable after installation, less prone to displacement or falling off, and ensures it stays in the correct position, preventing gas leakage and ensuring drying effect. Attached Figure Description

[0026] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0027] Figure 2 yes Figure 1 A structural diagram of the fill function body omitted in the middle.

[0028] Figure 3 This is a cross-sectional view of the vent cover.

[0029] Figure 4 This is a cross-sectional structural diagram of the drying cylinder.

[0030] Figure 5 This is a cross-sectional structural diagram of the connecting cylinder.

[0031] Figure 6 yes Figure 4 Enlarged view of point A in the middle.

[0032] Figure 7 yes Figure 4 Enlarged view of point B in the middle.

[0033] Figure label:

[0034] 1. Connecting cylinder; 2. Lower sealing gasket; 3. Drying cylinder body; 31. Shell; 311. Drying inlet; 312. Drying outlet; 313. Upper end plate; 314. Lower end plate; 315. Outer ring plate; 316. Central ring column; 317. Recess; 32. First spacer ring; 321. First vent hole; 33. Second spacer ring; 331. Second vent hole; 34. First chamber; 35. Second chamber; 36. Third chamber; 371. Polyester fiber nonwoven fabric; 372. Coconut shell activated carbon granules; 373. Polytetrafluoroethylene microporous membrane; 4. Upper sealing gasket; 5. Assembly sealing ring; 6. Vent cover; 61. Cover inlet; 62. Cover outlet; 63. Connecting screw sleeve; 64. Locking groove; 7. Connecting screw. Detailed Implementation

[0035] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0036] refer to Figures 1 to 7 This embodiment provides a ventilator tubing drying device, including a connecting cylinder 1, a lower sealing gasket 2, a drying cylinder 3, an upper sealing gasket 4, an assembly sealing ring 5, and an air passage cover 6;

[0037] A connecting screw 7 is provided with an upward protrusion in the middle of the connecting cylinder 1. The lower sealing gasket 2 is sleeved on the lower end of the connecting screw 7. The drying cylinder 3 is sleeved on the connecting screw 7 and abuts against the upper end of the lower sealing gasket 2. The upper sealing gasket 4 is provided on the upper end surface of the drying cylinder 3.

[0038] The lower end of the air passage cover 6 is provided with a connecting screw sleeve 63 that mates with the connecting screw 7. The air passage cover 6 is provided with a cover inlet 61 and a cover outlet 62 that are threaded or snapped into the ventilator tubing. The periphery of the air passage cover 6 is provided with a snap-fit ​​groove 64 for snapping in the sealing ring 5. The air passage cover 6 is connected to the connecting cylinder 1 by the connecting screw sleeve 63 mates with the connecting screw 7. The air passage cover 6 is sealed to the periphery of the connecting cylinder 1 by the sealing ring 5. The drying cylinder 3 is sealed to the air passage cover 6 by the upper sealing gasket 4.

[0039] The drying cylinder 3 includes a shell 31 and a filling functional body disposed within the shell 31. A drying inlet 311 communicating with the interior of the shell 31 is provided on the upper end surface of the shell 31. A drying outlet 312 communicating with the interior of the shell 31 is provided on the periphery of the shell 31. The drying inlet 311 is connected to the cover inlet 61. The drying outlet 312 is connected to the interior of the connecting cylinder 1. The interior of the connecting cylinder 1 is connected to the cover outlet 62.

[0040] In this design, the connecting cylinder 1 and the air passage cover 6 can both be made of transparent polycarbonate, polypropylene, or other impact-resistant and chemically resistant materials. The connecting screw 7 can be made of stainless steel or iron. The lower sealing gasket 2, upper sealing gasket 4, and assembly sealing ring 5 can be made of commonly used sealing materials such as silicone or rubber. The drying cylinder 3 can be made of stainless steel, aluminum alloy, or other materials. The connecting cylinder 1 in this design is cylindrical. The upper sealing gasket 4 and the annular structure in the middle of the air passage cover 6 form a seal, thereby achieving a seal for the air intake of the cover. The cover inlet 61 and cover outlet 62 can adopt a threaded structure or a quick-connect structure, thereby achieving quick assembly and disassembly with the ventilator tubing.

[0041] The housing 31 is provided with a first partition ring 32 and a second partition ring 33 arranged from the center outwards. The housing 31 is divided into a first chamber 34, a second chamber 35 and a third chamber 36 from the inside out by the first partition ring 32 and the second partition ring 33. The drying inlet 311 is connected to the first chamber 34 and the drying outlet 312 is connected to the third chamber 36. The second chamber 35 is connected to the first chamber 34 and the third chamber 36 respectively. The filling function body is disposed in the first chamber 34, the second chamber 35 and the third chamber 36.

[0042] The filling material in the first chamber 34 is polyester fiber nonwoven fabric 371, the filling material in the second chamber 35 is coconut shell activated carbon particles 372, and the filling material in the third chamber 36 is polytetrafluoroethylene microporous membrane 373. The filling materials can be selected according to actual needs. For example, the drying material can be one or more of molecular sieves, activated carbon, activated alumina, and silica gel; the bactericidal material can be one or more of solid chlorine dioxide, nano-magnesium oxide, polytetrafluoroethylene microporous membrane 373, and metal oxide composite materials.

[0043] The lower part of the first partition ring 32 is provided with a first air passage hole 321, the upper end of the second partition ring 33 is provided with a second air passage hole 331, and the drying outlet 312 is provided at the lower part of the outer side wall of the housing 31.

[0044] The housing 31 includes an upper end plate 313, a lower end plate 314, an outer ring plate 315, and a central ring post 316 sleeved on the connecting screw 7. The upper ends of the outer ring plate 315, the central ring post 316, the first spacer ring 32, and the second spacer ring 33 are respectively welded to the upper end plate 313, and the lower ends of the outer ring plate 315, the central ring post 316, the first spacer ring 32, and the second spacer ring 33 are respectively welded to the lower end plate 314.

[0045] The lower end of the connecting screw 7 is fixedly connected to the lower end of the connecting cylinder 1.

[0046] The connecting cylinder 1 is made of a transparent material.

[0047] A recessed portion 317 is provided on the upper end surface of the housing 31, and the upper sealing gasket 4 is fitted into the recessed portion 317.

[0048] The working principle of this utility model is as follows:

[0049] Moist gas from the ventilator tubing first enters the drying device through the inlet 61 on the air passage cover 6. The gas, carrying moisture generated in the tubing, enters the first chamber 34 of the drying cylinder 3 at a certain flow rate and pressure. After entering the first chamber 34, the gas comes into full contact with the polyester fiber nonwoven fabric 371 filling material. The polyester fiber nonwoven fabric 371 has good moisture absorption and breathability; its fiber structure can quickly capture moisture in the gas, causing some of the moisture to be adsorbed on the fiber surface and in the internal pores. After preliminary drying in the first chamber 34, the pre-dried gas enters the second chamber 35 through the first air passage 321 at the bottom of the first diaphragm ring 32, where it comes into full contact with the coconut shell activated carbon particles 372, further adsorbing residual moisture and effectively removing odors and tiny impurity particles. The gas, after deep purification in the second chamber 35, enters the third chamber 36. When the gas passes through the polytetrafluoroethylene microporous membrane 373, it can intercept the vast majority of bacteria and tiny droplets. This effectively dries the gas flowing through the ventilator tubing and achieves effective sterilization.

[0050] like Figure 2 As shown, the dashed arrows represent the airflow pattern of this scheme.

[0051] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A breathing machine circuit drying apparatus, characterized by: Includes connecting cylinder, lower sealing gasket, drying cylinder, upper sealing gasket, assembly sealing ring and air passage cover; A connecting screw is provided with an upward protrusion in the middle of the connecting cylinder. The lower sealing gasket is sleeved on the lower end of the connecting screw. The drying cylinder is sleeved on the connecting screw and abuts against the upper end of the lower sealing gasket. The upper sealing gasket is provided on the upper end surface of the drying cylinder. The lower end of the air passage cover is provided with a connecting threaded sleeve that mates with the connecting screw. The air passage cover is provided with a cover inlet and a cover outlet that are threaded or snapped into the ventilator tubing. The periphery of the air passage cover is provided with a locking groove for locking and assembling a sealing ring. The air passage cover is connected to the connecting cylinder by the connecting threaded sleeve mates with the connecting screw. The air passage cover is sealed to the periphery of the connecting cylinder by assembling a sealing ring. The drying cylinder is sealed to the air passage cover by an upper sealing gasket. The drying cylinder includes a shell and a filling functional body disposed within the shell. A drying inlet communicating with the interior of the shell is provided on the upper end face of the shell, and a drying outlet communicating with the interior of the shell is provided on the periphery of the shell. The drying inlet is connected to the cover inlet, and the drying outlet is connected to the interior of the connecting cylinder. The interior of the connecting cylinder is connected to the cover outlet.

2. A breathing machine tube drying apparatus according to claim 1, characterized in that: The housing is provided with a first partition ring and a second partition ring from the center outwards. The housing is divided into a first chamber, a second chamber and a third chamber from the inside out by the first partition ring and the second partition ring. The drying inlet is connected to the first chamber and the drying outlet is connected to the third chamber. The second chamber is connected to the first chamber and the third chamber respectively. The filling function body is disposed in the first chamber, the second chamber and the third chamber.

3. A breathing machine tube drying apparatus as defined in claim 2, characterized by: The filling material in the first chamber is polyester fiber nonwoven fabric, the filling material in the second chamber is coconut shell activated carbon particles, and the filling material in the third chamber is polytetrafluoroethylene microporous membrane.

4. A breathing machine tube drying apparatus as defined in claim 2, wherein: The lower part of the first partition ring is provided with a first air passage hole, the upper end of the second partition ring is provided with a second air passage hole, and the drying outlet is located at the lower part of the outer side wall of the shell.

5. A breathing machine tube drying apparatus as defined in claim 2, wherein: The housing includes an upper end plate, a lower end plate, an outer ring plate, and a central ring post sleeved on the connecting screw. The upper ends of the outer ring plate, the central ring post, the first spacer ring, and the second spacer ring are respectively welded to the upper end plate, and the lower ends of the outer ring plate, the central ring post, the first spacer ring, and the second spacer ring are respectively welded to the lower end plate.

6. A breathing machine tube drying apparatus as defined in claim 1, wherein: The lower end of the connecting screw is fixedly connected to the lower end of the connecting cylinder.

7. A breathing machine tube drying apparatus as defined in claim 1, wherein: The connecting cylinder is made of a transparent material.

8. A breathing machine tube drying apparatus as defined in claim 1, wherein: A recess is provided on the upper end surface of the housing, and the upper sealing gasket is fitted into the recess.

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