Adjustable oxygen mask with adjustment structure
By introducing a combination locking mechanism of L-shaped plate, anti-slip teeth, shaft and torsion spring into the oxygen mask, the problem of inconvenient adjustment of the existing oxygen mask straps is solved, realizing easy adjustment and stable wearing of the straps, and improving the comfort and stability of use.
Patent Information
- Application Number
- CN202520761837.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Existing oxygen mask straps are either not adjustable or cumbersome to adjust, leading to discomfort, especially when used for extended periods, causing localized pressure concentration and discomfort.
An oxygen mask with an adjustable structure was designed. It adopts a combination locking mechanism of L-shaped plate, anti-slip teeth, shaft and torsion spring to achieve easy adjustment of the straps and stable wearing. The pressure is distributed by two sets of straps and cloth loops.
It enables easy adjustment and stable wearing of the straps, reduces local pressure, and improves comfort and stability.
Smart Images

Figure CN224937468U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical equipment and relates to an adjustable oxygen mask with an adjustable structure. Background Technology
[0002] In existing technology, oxygen masks are important devices for providing oxygen to the human body; they generally consist of a mask body, a headband, and an oxygen delivery interface; the mask body is made of silicone or rubber, which is soft and has good sealing performance, and can fit tightly to the face, covering the mouth and nose; when in use, it is connected to oxygen cylinders, oxygen generators, and other equipment through oxygen delivery tubes, allowing high concentrations of oxygen to enter the mask, which can increase the oxygen content in the user's blood and alleviate breathing difficulties.
[0003] The disadvantages of existing oxygen masks are that they are not adjustable, and when they are tied too tightly, they can be painful. The straps are of a fixed length and often leave marks on the face. Some masks can be adjusted in terms of wearing position and strap length (Chinese patent, patent number 202221856686.0), but the adjustment process is too cumbersome: you have to insert the push plate into the locking plate to release the strap, then pull the strap, and after adjusting, you have to pull the push plate out to fix the strap. However, the locking plate is small, making the pulling operation particularly inconvenient and involving many steps. In addition, the single-strap design is also not good, as the pressure is concentrated on the occipital bone, which can cause local pain after wearing for a long time and is very uncomfortable. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this invention is to propose an adjustable oxygen mask with an adjustable structure.
[0005] The technical solution of this utility model is: the adjustable oxygen mask with an adjustable structure of this utility model includes a mask body and two sets of straps connected to both sides of the mask body, and an opening is provided in the middle of both sides of the mask body.
[0006] Mounting grooves are provided on both sides of the outer surface of the mask body, and strip grooves are provided on the lower sides of both sides of the outer surface of the mask body. Slider blocks are installed at both ends of the strip grooves.
[0007] Furthermore, one end of each of the two sets of straps is connected to the mask body, and the other end passes through the opening, the mounting groove and the strip groove and is connected to the slider.
[0008] Furthermore, an L-shaped plate is installed in the mounting groove, and a shaft hole is opened at the corner of the L-shaped plate, through which a shaft rod is inserted;
[0009] Limiting grooves are provided on both sides of the L-shaped plate near the shaft.
[0010] Furthermore, the shaft passes through the shaft hole and is connected to both ends inside the mounting groove.
[0011] Furthermore, a matching torsion spring is fitted on the outer wall of both ends of the shaft that passes through the shaft hole. One end of the torsion spring is fixedly installed on the outer side of the L-shaped plate and in the limiting groove, and the other end is fixedly installed on the inner wall of the mounting groove.
[0012] Furthermore, several anti-slip teeth are provided at the bottom end of the L-shaped plate;
[0013] Anti-slip texture is provided at the top end of the L-shaped plate away from the shaft, and a notch is provided at the bottom end away from the shaft.
[0014] Furthermore, a cloth loop is provided between the outer sides of the two sets of straps.
[0015] The beneficial effects of this utility model are: it makes it more convenient and comfortable for users; by disclosing a special locking mechanism, the adjustment of the straps becomes easy and simple, and it is more stable when worn on the head; in addition, the straps are designed in two sets and equipped with cloth loops, so that the way the straps are used can be flexibly adjusted according to the needs of use, reducing local pressure when wearing. Attached Figure Description
[0016] Figure 1 This is a front view of the single-belt configuration in this utility model;
[0017] Figure 2 This is a front view of the dual-strap wearing state in this utility model;
[0018] Figure 3 yes Figure 1 Enlarged view of point A in the middle;
[0019] Figure 4 This is an installation diagram of the L-shaped plate, anti-slip teeth, shaft and torsion spring in this utility model;
[0020] Figure 5 This is a structural diagram of the L-shaped plate in this utility model;
[0021] In the diagram, 1 is the mask body, 2 is the strap, 3 is the opening, 4 is the mounting groove, 5 is the L-shaped plate, 6 is the anti-slip teeth, 7 is the shaft, 8 is the torsion spring, 9 is the shaft hole, 10 is the limiting groove, 11 is the notch groove, 12 is the strip groove, 13 is the slider, and 14 is the fabric collar. Detailed Implementation
[0022] The specific technical solution of this utility model will be further described in detail below with reference to specific examples.
[0023] As shown in the figure, the adjustable oxygen mask with an adjustable structure described in this utility model...
[0024] Specifically, each device includes: Overall: The device mainly includes a mask body 1 and straps 2, the straps 2 are in two sets, and a cloth loop 14 is installed between the outer sides of the two sets of straps 2;
[0025] Mounting grooves 4 are provided on both sides of the outer surface of the mask body 1.
[0026] Locking: A shaft 7 is installed inside the mounting groove 4, and an L-shaped plate 5 is installed on the shaft 7. The L-shaped plate 5 can rotate around the shaft 7 and can cover the mounting groove 4.
[0027] Several anti-slip teeth 6 are installed at the bottom end of the L-shaped plate 5, and torsion springs 8 are installed at both ends of the shaft 7, with the shaft 7 passing through the middle of the torsion springs 8.
[0028] One end of the torsion spring 8 is fixedly connected to the outside of the L-shaped plate 5, and the other end is fixedly installed on the inner wall of the mounting groove 4.
[0029] Other: There is a through-hole 3 at the middle position on both sides of the mask body 1, and the strap 2 passes through the through-hole 3;
[0030] Anti-slip texture is provided at the top end of the L-shaped plate 5 away from the shaft 7, and a notch 11 is provided at the bottom end of the L-shaped plate 5 away from the shaft 7.
[0031] There is a shaft hole 9 at the corner of the L-shaped plate 5, through which the shaft 7 passes;
[0032] Limiting grooves 10 are also provided on both sides of the L-shaped plate 5 near the shaft 7, and the end of the torsion spring 8 is installed in the limiting groove 10;
[0033] A strip groove 12 is provided below the outer surface of the mask body 1, and sliders 13 are installed at both ends of the strip groove 12. The two ends of the strap 2 are connected to the sliders 13.
[0034] Connection and working principle of each device:
[0035] Adjustment of strap 2: Initially, strap 2 is completely loose. To shorten the length of strap 2, pull the end of strap 2. Pulling the end of strap 2 will cause the L-shaped plate 5 to flip upwards, so the anti-slip teeth 6 will no longer be stuck in strap 2, allowing you to adjust the length of strap 2. Once the length is adjusted, release your hand, and the torsion spring 8 will automatically reset the L-shaped plate 5. The anti-slip teeth 6 will then lock into strap 2, locking it in one direction only, and it will not easily loosen.
[0036] Stable fit: When wearing the mask, pull it outward from the middle of the strap 2. Because the L-shaped plate 5 can only rotate in one direction, and the anti-slip teeth 6 tightly hold the strap 2, the length of the strap 2 is fixed and will not change easily, making it more stable to use.
[0037] Adjustment of the use of strap 2: The two sets of straps 2 can be adjusted according to the needs; if you wear it for a short time, just put the two sets of straps 2 together and use a single strap 2 to fix the head; if you wear it for a long time, move the cloth loop 14 to the end of the strap 2 to separate the two sets of straps 2. In this way, the pressure can be distributed to the frontal bone, temporal bone and occipital bone, instead of pressing on one place, so it will not be too uncomfortable even after wearing it for a long time.
[0038] Easy to adjust: In the past, adjusting strap 2 was troublesome and difficult to operate. For the mask adjustment strap 2 of this device, you can adjust it by pulling the end of strap 2 and it will automatically lock when you release your hand, which is much more convenient than before.
[0039] Stable fit: During wear, no matter how you move, the strap 2 will not change length or length, and the mask will not become loose.
[0040] Comfortable to wear: The strap 2 is designed in two sets, and the way of use can be adjusted as needed; a single strap 2 can be used for short-term wear, which is convenient and quick; for long-term wear, two straps 2 can be used to distribute the pressure and prevent pain in any part of the body, greatly improving comfort.
[0041] The structure and working principle of the oxygen mask: The structure inside the mounting slot 4 is shown, such as L-shaped plate 5, anti-slip teeth 6, shaft 7, torsion spring 8, etc., which can be seen more clearly; it can also be seen how L-shaped plate 5 is installed on shaft 7, and the connection with other components; the design of anti-slip texture, notch groove 11, shaft hole 9, limit groove 10 and other devices on L-shaped plate 5 can be clearly seen.
Claims
1. An adjustable oxygen mask with an adjustable structure, characterized in that: It includes a mask body (1) and two sets of straps (2) connected to both sides of the mask body (1). A through-hole (3) is provided in the middle position of both sides of the mask body (1). Mounting grooves (4) are provided on both sides of the outer surface of the mask body (1), and strip grooves (12) are provided below both sides of the outer surface of the mask body (1). Slider blocks (13) are installed at both ends of the strip grooves (12).
2. The adjustable oxygen mask with an adjustable structure according to claim 1, characterized in that: One end of each of the two sets of straps (2) is connected to the mask body (1), and the other end passes through the opening (3), the mounting groove (4) and the strip groove (12) and is connected to the slider (13).
3. The adjustable oxygen mask with an adjustable structure according to claim 1, characterized in that: An L-shaped plate (5) is installed in the mounting groove (4), and a shaft hole (9) is opened at the corner of the L-shaped plate (5), and a shaft rod (7) is inserted through the shaft hole (9); Limiting grooves (10) are provided on both sides of the L-shaped plate (5) near the shaft (7).
4. The adjustable oxygen mask with an adjustable structure according to claim 3, characterized in that: The shaft (7) passes through the shaft hole (9) and is connected to both ends inside the mounting groove (4).
5. The adjustable oxygen mask with an adjustable structure according to claim 4, characterized in that: A matching torsion spring (8) is fitted on the outer wall of both ends of the shaft (7) that passes through the shaft hole (9). One end of the torsion spring (8) is fixedly installed on the outer side of the L-shaped plate (5) and in the limiting groove (10), and the other end is fixedly installed on the inner wall of the mounting groove (4).
6. The adjustable oxygen mask with an adjustable structure according to claim 3, characterized in that: Several anti-slip teeth (6) are installed at the bottom end of the L-shaped plate (5); Anti-slip texture is provided at the top end of the L-shaped plate (5) away from the shaft (7), and a notch (11) is provided at the bottom end away from the shaft (7).
7. The adjustable oxygen mask with an adjustable structure according to claim 1, characterized in that: A cloth loop (14) is provided between the outer sides of the two sets of straps (2).
Citation Information
Patent Citations
Oxygen mask with adjustable wearing position
CN219127843U
