Quick connector for oxygen inhalator and oxygen inhalator adopting quick connector

Abstract

The utility model discloses a quick coupling for oxygen inhalator and oxygen inhalator using the quick coupling, the quick coupling for oxygen inhalator comprises an air inlet end and an air outlet end, the air inlet end is connected with an exhaust passage of oxygen inhalator, the air outlet end is connected with an external oxygen pipeline, and the oxygen pipeline is connected with the air inlet end. A pressure relief hole is formed in the side, close to the air outlet end, of the air inlet end, a pressure relief pipe is clamped to the outer side of the pressure relief hole, and an elastic component is arranged on the inner side of the air outlet end. According to the quick connector for the oxygen inhalator, an external oxygen pipeline is limited and fixed through the elastic component, so that the external oxygen pipeline is conveniently and quickly pulled out, and the air tightness in the using process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a quick connector for an oxygen inhaler and an oxygen inhaler using the quick connector. Background Technology

[0002] With the development of clinical treatment techniques, nebulized drug delivery, a non-injectable method of administration, has gained increasing attention, leading to the development of oxygen nebulization inhalation. Oxygen nebulization inhalation utilizes a high-speed oxygen flow to form a mist-like suspension of medication, which is then inhaled into the respiratory tract to achieve therapeutic effects. The basic principle is that a high-speed oxygen flow passes through a capillary tube opening, creating negative pressure at the opening. This pressure draws the medication out through an adjacent opening, where it is then atomized into fine droplets by the high-speed oxygen flow, resulting in an aerosol that enters the respiratory tract with the patient's respiration, thus achieving a therapeutic effect.

[0003] In addition, critically ill patients often require oxygen therapy, but dry oxygen can irritate the respiratory mucosa, so humidification is necessary. Existing oxygen inhalers have both nebulization and humidification functions and are widely used.

[0004] When using an oxygen inhaler, a quick connector needs to be installed to connect the inhaler to an external tubing.

[0005] Application No. 2011100610028 discloses an integrated nebulizer oxygen inhaler, which uses standardized quick-connect couplings and / or Luer couplings. Selectable quick-connect coupling models include SPC-C, SPOC-C, PC-C mini quick-connect couplings, or SPC-G, SPCF-G, PC-G quick-connect couplings. The Luer couplings are preferably 6% (Luer) external tapered locking couplings with rotatable internal thread retaining rings and 6% (Luer) internal tapered locking couplings with double-ended right-hand external threads. The technical standard for the Luer coupling is GB / T1962.2-2001idt ISO 594-2:1998.

[0006] Application No. 2023230812559 discloses a pressure-relief explosion-proof quick-connect fitting for a humidification bottle, including an inner tube and an outer tube sleeved on the inner tube. One end of the inner tube is a threaded interface with internal threads, and the other end is a gas nozzle insertion interface. The threaded interface is threadedly connected to the outer tube fitting. An expansion tube is provided at the corresponding part of the inner tube near the internal thread section. A pressure relief tube is provided on the end face of the expansion tube, and a pressure relief hole is provided on the tube wall. A connecting tube is provided at the end of the pressure relief tube away from the expansion tube, and the internal thread is provided in the connecting tube. In use, the above-mentioned quick-connect fitting requires threaded connection between the threaded interface and the outer tube fitting. After long-term use, the threaded connection may become stripped, making it impossible to tighten and leading to gas leakage.

[0007] The aforementioned quick-connect fittings (or fast connectors) are prone to problems such as difficulty in pulling out the outer pipe. Even if the pull-out problem is solved by using a threaded connection, the threaded connection may become stripped and unable to be tightened after long-term use, leading to the risk of gas leakage and affecting the widespread adoption of quick-connect fittings. Utility Model Content

[0008] In view of the above-mentioned deficiencies of the prior art, the present invention provides a quick connector for an oxygen inhaler, wherein an elastic component is provided on the inner side of the outlet end, and the elastic component is connected to an external oxygen supply line through the elastic component. During normal use, the external oxygen supply line is locked in the elastic component, and the elastic component plays a limiting role in the external oxygen supply line. After use, the external oxygen supply line can be pulled out, which is convenient. For this purpose, the present invention also provides an oxygen inhaler using this quick connector.

[0009] In a first aspect, this utility model provides a quick connector for an oxygen inhaler, including an inlet end and an outlet end. The inlet end is connected to the exhaust channel of the oxygen inhaler, and the outlet end is connected to an external oxygen supply line. A pressure relief hole is provided on the side of the inlet end near the outlet end, and a pressure relief tube is clamped on the outside of the pressure relief hole. An elastic member is provided on the inside of the outlet end.

[0010] By adopting the above technical solution, a pressure relief hole is set on the side of the air inlet end near the air outlet end, and a pressure relief pipe is clamped on the outside of the pressure relief hole. The pressure relief hole and the pressure relief pipe are set on a quick connector to achieve the effects of pressure relief, air exhaust and explosion prevention.

[0011] The quick connector has an elastic component inside the outlet end. On the one hand, the elastic component limits the external oxygen pipeline, preventing it from moving back and forth or sliding out inside the quick connector; on the other hand, the external oxygen pipeline can be quickly pulled out after use, making it more convenient to use.

[0012] In a preferred embodiment, the elastic component is a sealing ring, and the inner side of the air outlet is provided with a plurality of mounting grooves, with the sealing ring disposed in the mounting groove.

[0013] The array of multiple sealing rings limits the external oxygen supply pipeline. The array of sealing rings ensures that the external oxygen supply pipeline is subjected to uniform force, thereby improving the stability of the external oxygen supply pipeline installation.

[0014] In a more preferred embodiment, the elastic component is an annular sealing ring, which covers the inner side of the air outlet end.

[0015] The sealing ring is laid on the inside of the entire air outlet, which increases the contact area between the quick connector and the external oxygen pipeline, and provides a better limiting and fixing effect on the external oxygen pipeline.

[0016] In a preferred embodiment, the elastic component is made of silicone.

[0017] In another preferred embodiment, the outer side of the air outlet is stepped or pagoda-shaped.

[0018] The outer side of the air outlet is designed in a stepped or pagoda shape. The external oxygen pipeline is connected to the outer side of the air outlet. The stepped or pagoda-shaped structure limits the external oxygen pipeline and prevents it from falling off during use.

[0019] The aforementioned quick-connect coupling is a dual-purpose coupling. The first method connects the external oxygen supply line to the outside of the outlet, suitable for cases where the external oxygen supply line is a flexible hose. The second method connects the external oxygen supply line to the inside of the outlet, suitable for cases where the external oxygen supply line is a rigid hose or the connection point is a rigid hose. These two methods expand the application range of the quick-connect coupling and facilitate its widespread adoption.

[0020] In a more preferred embodiment, the outer diameter of the outlet gradually increases towards the inlet.

[0021] This technical solution results in a progressively increasing outer diameter at the outlet end. On the one hand, it facilitates the quick insertion of the external oxygen supply line into the outer side of the outlet end during installation. On the other hand, the gradually increasing outer diameter increases the friction between the outlet end and the external oxygen supply line, preventing the external oxygen supply line from falling off during use.

[0022] In another preferred embodiment, a retaining ring is provided on the outer side of the air outlet end. The retaining ring surrounds the periphery of the air outlet end, and the side of the retaining ring away from the air inlet end extends downward to form an extended end. The extended end is engaged with the outer side of the annular sealing ring.

[0023] A retaining ring is installed on the outside of the air outlet. The retaining ring extends downward and has an extended end. The extended end is locked on the outside of the sealing ring to fix the sealing ring and prevent the sealing ring from sliding or even moving out of the air outlet during use, which would affect normal use.

[0024] In a more preferred embodiment, the retaining ring has a locking post on the outer side of the extended end, the locking posts are symmetrically arranged on both sides of the retaining ring, and a locking groove is provided between the extended end and the locking post for cooperating with the locking parts on the external oxygen pipeline.

[0025] A locking post is installed on the outside of the protruding end, and a locking groove is installed between the protruding end and the locking post. A locking device is installed on the external oxygen supply line. By rotating the external oxygen supply line, the locking device is locked into the locking groove to achieve fixation.

[0026] By adopting the above technical solution, the connection between the external oxygen supply line and the outlet is more secure, which can completely avoid the risk of the oxygen inhaler falling off when using high-pressure gas sources such as gas cylinders.

[0027] In a preferred embodiment, the card is movably or fixedly connected to an external oxygen pipeline.

[0028] The clip can be integrated with the external oxygen pipeline or connected separately from it. The connection between the clip and the external oxygen pipeline can be a fixed connection, such as welding or threaded connection, or a movable connection, in which the clip is fitted onto the outside of the external oxygen pipeline.

[0029] In another preferred embodiment, the card is in the shape of a straight line and is installed at an angle on the external oxygen pipeline.

[0030] After the external oxygen supply line is inserted into the inside of the outlet end, rotate the external oxygen supply line so that the clip is in the slot and fixed, and the external oxygen supply line cannot move further; when the use is over, rotate the external oxygen supply line in the opposite direction, the clip will leave the slot, and the external oxygen supply line can be easily pulled out.

[0031] A second aspect of this invention provides an oxygen inhaler, including the aforementioned quick connector for an oxygen inhaler, wherein the quick connector is connected to the exhaust channel of the oxygen inhaler.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] (1) The quick connector for the oxygen inhaler of this utility model limits and fixes the external oxygen pipeline through the elastic component, which is convenient to pull out quickly and ensures airtightness during use.

[0034] (2) The quick connector for the oxygen inhaler of this utility model has a simple structure, is easy to operate, expands the scope of application, and is suitable for widespread promotion.

[0035] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the quick connector for the oxygen inhaler in Embodiment 1 of this utility model;

[0037] Figure 2 This is a cross-sectional view of the quick connector for the oxygen inhaler in Embodiment 1 of this utility model;

[0038] Figure 3 This is a schematic diagram of the structure of the quick connector for the oxygen inhaler in Embodiment 2 of this utility model;

[0039] Figure 4 This is a cross-sectional view of the quick connector for the oxygen inhaler in Embodiment 2 of this utility model;

[0040] Figure 5 This is a cross-sectional view of the quick connector for the oxygen inhaler in Embodiment 3 of this utility model;

[0041] Figure 6 This is a cross-sectional view of the quick connector for the oxygen inhaler in Embodiment 4 of this utility model.

[0042] Figure 7 This is a schematic diagram of an external oxygen pipeline structure adapted to the quick connector for the oxygen inhaler in Embodiment 4 of this utility model.

[0043] Wherein: 1-sealing ring, 2-pressure relief hole, 3-pressure relief pipe, 4-retaining ring, 5-extended end, 6-sealing ring, 7-clamping post, 8-air inlet end, 9-air outlet end, 10-clamping groove, 11-clamping piece. Detailed Implementation

[0044] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the present utility model is further described below in conjunction with specific illustrations. However, this utility model is not limited to the embodiments described below.

[0045] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0046] With the development of clinical treatment technology, oxygen inhalers have been widely used. However, quick connectors used with oxygen inhalers are difficult to pull out, or after long-term use, the threads connecting the quick connectors to the external oxygen tubing may become stripped, affecting airtightness.

[0047] To solve the above-mentioned technical problems, this utility model provides a quick connector for an oxygen inhaler. The quick connector includes an air inlet 8 and an air outlet 9. The air inlet 8 is connected to the exhaust channel of the oxygen inhaler, and the air outlet 9 is connected to an external oxygen supply line. A pressure relief hole 2 is provided on the side of the air inlet 8 near the air outlet 9. A pressure relief pipe 3 is clamped on the outside of the pressure relief hole 2, and an elastic component is provided on the inside of the air outlet 9.

[0048] Connect the aforementioned quick connector to an oxygen inhaler. The nebulized or humidified oxygen from the inhaler enters the quick connector through the inlet 8 and exits through the outlet 9 into the external oxygen tubing for nebulization or oxygen therapy. To prevent excessive gas pressure and potential safety hazards, a pressure relief hole 2 is provided on the side of the inlet 8 near the outlet 9. A pressure relief tube 3 is secured to the outside of the pressure relief hole 2. When the pressure is low, the pressure relief tube 3 remains close to the outside of the quick connector. When the pressure is excessive, the pressure relief tube 3 bulges under the pressure, releasing the gas and thus relieving pressure.

[0049] An elastic component is provided on the inner side of the air outlet 9. The purpose of the elastic component is to fix the external oxygen pipeline when the air outlet 9 is connected. The elastic force provided by the elastic component acts on the external oxygen pipeline, which has a limiting effect on the external oxygen pipeline and prevents the external oxygen pipeline from falling off during use.

[0050] The oxygen inhaler of this application uses a quick connector to install an external oxygen supply line inside the outlet end 9. In this case, the external oxygen supply line is preferably a rigid line or the end connected to the quick connector is a rigid line.

[0051] The quick connector for the oxygen inhaler of this application makes it relatively easy to pull out the external oxygen tubing from the elastic component after use, avoiding the problem of difficulty in pulling it out.

[0052] The aforementioned elastic component can be a sealing ring 1, with a plurality of mounting grooves arranged in an array on the inner side of the air outlet 9, and the sealing ring 1 is placed in the mounting groove.

[0053] The sealing ring array 1 is arranged on the inner side of the air outlet 9, which makes the external oxygen supply pipeline more evenly stressed and improves the firmness of the external oxygen supply pipeline installation.

[0054] Of course, the aforementioned elastic component can also be an annular sealing ring 6, such as an annular sealing ring made of silicone material, with the annular sealing ring 6 covering the inner side of the air outlet 9. This increases the contact area with the external oxygen pipeline, resulting in superior limiting and fixing effects on the external oxygen pipeline.

[0055] When configured as an annular sealing ring 6, a retaining ring 4 is provided on the outside of the air outlet 9. The retaining ring 4 surrounds the periphery of the air outlet 9, and the side of the retaining ring 4 away from the air inlet 8 extends downward to form an extension end 5. The extension end 5 is engaged with the outside of the sealing ring 6. The air outlet 9 and the retaining ring 4 can be integrally connected or separately connected. When separately connected, the retaining ring 4 can be welded to the outside of the air outlet 9, or an internal thread can be provided in the retaining ring 4 and an external thread can be provided on the outside of the air outlet 9, with the retaining ring 4 and the air outlet 9 connected by threads. The retaining ring 4 extends further downward at the contact point with the air outlet 9 to form the extension end 5. The retaining ring 4 can extend downward as a whole or partially downward, so that the extension end 5 is engaged with the outside of the sealing ring 6 to fix the sealing ring 6 and prevent the sealing ring 6 from moving relative to the air outlet 9 or even slipping out of the quick connector after long-term use.

[0056] A retaining ring 4 has a locking post 7 on the outer side of its protruding end 5. The locking posts 7 are symmetrically arranged on both sides of the retaining ring 4. A locking groove 10 is provided between the protruding end 5 and the locking post 7 for engaging with the locking piece 11 on the external oxygen supply line. The locking post 7 and the locking piece 11 are compatible to achieve the effect of fixing or removing the external oxygen supply line. When nebulized / humidified oxygen is needed, the external oxygen supply line is inserted into the inner side of the outlet end 9, and the external oxygen supply line is rotated to lock the locking piece 11 into the locking groove 10. When the external oxygen supply line needs to be removed after use, the external oxygen supply line is rotated in the opposite direction, and the locking piece 11 leaves the locking groove 10, allowing the external oxygen supply line to be removed.

[0057] The clip 11 is in the shape of a straight line and is inclinedly installed on the external oxygen supply line. Of course, the shape of the clip 11 is not limited to this; any clip 11 that can achieve a similar function can be used in this application. The clip 11 forms a certain angle with the external oxygen supply line, which can be a right angle or an acute angle.

[0058] The clip 11 can be integrated with the external oxygen pipeline or connected separately from the external oxygen pipeline. The connection method between the clip 11 and the external oxygen pipeline can be a fixed connection, such as welding or threaded connection, or a movable connection, in which the clip 11 is sleeved on the outside of the external oxygen pipeline.

[0059] In addition to enabling the installation of an external oxygen supply line inside the outlet end 9, the quick connector of this application can also enable the installation of an external oxygen supply line outside the outlet end 9. In this case, the outside of the outlet end 9 is set in a stepped or pagoda shape.

[0060] The outer side of the air outlet 9 is set in a stepped or pagoda shape. The external oxygen pipeline is connected to the outer side of the air outlet 9. The stepped or pagoda-shaped structure limits the external oxygen pipeline and prevents it from falling off during use.

[0061] The aforementioned quick-connector can be used in two ways. In one method, the external oxygen supply line is connected to the outside of the outlet 9, preferably a flexible hose. In the other method, the external oxygen supply line is connected to the inside of the outlet 9, preferably a rigid hose or a rigid hose at the connection point. These two methods expand the application range of the quick-connector and facilitate its widespread adoption.

[0062] The outer diameter of the outlet end 9 gradually increases towards the inlet end 8. The outer diameter of the outlet end 9 increases gradually. On the one hand, this makes it easier to quickly insert the external oxygen pipeline into the outer side of the outlet end 9 during installation. On the other hand, the gradually increasing outer diameter increases the friction between the outlet end 9 and the external oxygen pipeline, preventing the external oxygen pipeline from falling off during use.

[0063] In addition, this application also provides an oxygen inhaler in which the above-mentioned quick connector is installed. On the one hand, this allows the oxygen inhaler to be connected to both rigid and flexible tubing during use, expanding its range of applications and making it more convenient to use. On the other hand, it also facilitates the quick disconnection of the external oxygen tubing after use.

[0064] Example 1

[0065] like Figure 1 , 2 A quick connector for an oxygen inhaler includes an inlet end 8 and an outlet end 9. The inlet end 8 is connected to the exhaust channel of the oxygen inhaler, and the outlet end 9 is connected to an external oxygen supply line. A pressure relief hole 2 is provided on the side of the inlet end 8 near the outlet end 9, and a pressure relief tube 3 is fitted onto the outside of the pressure relief hole 2. A plurality of mounting grooves are arranged in an array on the inner side of the outlet end 9, and an elastic component, which is a sealing ring 1, is disposed in the mounting groove. The external oxygen supply line is a rigid round tube.

[0066] Example 2

[0067] like Figure 3 and 4 A quick connector for an oxygen inhaler includes an inlet end 8 and an outlet end 9. The inlet end 8 is connected to the exhaust channel of the oxygen inhaler, and the outlet end 9 is connected to an external oxygen supply line. A pressure relief hole 2 is provided on the side of the inlet end 8 near the outlet end 9, and a pressure relief tube 3 is fitted onto the outside of the pressure relief hole 2. A plurality of mounting grooves are arranged in an array on the inner side of the outlet end 9, and an elastic component, which is a sealing ring 1, is disposed in the mounting groove. The outer side of the outlet end 9 is stepped or pagoda-shaped, and the outer diameter of the outer side of the outlet end 9 gradually increases towards the inlet end 8.

[0068] This quick connector has two usage methods: one is to connect with a rigid round tube, and the other is to connect with a flexible round tube. When connected with a rigid round tube, the rigid round tube is inserted into the air outlet 9, and the sealing rings 1 limit the rigid round tube. Due to the array of sealing rings 1, the rigid round tube is evenly stressed. When connected with a flexible round tube, the flexible round tube is fitted over the outside of the air outlet 9. The stepped or pagoda-shaped structure of the air outlet 9 limits the flexible round tube, preventing it from slipping out during use.

[0069] Example 3

[0070] like Figure 5 A quick connector for an oxygen inhaler includes an inlet end 8 and an outlet end 9. The inlet end 8 is connected to the exhaust channel of the oxygen inhaler, and the outlet end 9 is connected to an external oxygen supply line. A pressure relief hole 2 is provided on the side of the inlet end 8 near the outlet end 9, and a pressure relief tube 3 is clamped to the outside of the pressure relief hole 2. An elastic component, such as an annular sealing ring 6 made of silicone, is provided on the inner side of the outlet end 9. The annular sealing ring 6 covers the entire inner side of the outlet end 9. When the external oxygen supply line is inserted into the outlet end 9, the annular sealing ring 6 wraps around the entire inserted portion of the outlet end 9, increasing the contact area with the external oxygen supply line and making the connection between the external oxygen supply line and the quick connector more secure.

[0071] A retaining ring 4 is threaded onto the outer side of the air outlet 9. The retaining ring 4 extends downward from the side away from the air inlet 8 to form an extension end 5, which is engaged with the outer side of the annular sealing ring 6. The extension end 5 is designed to secure the annular sealing ring and prevent it from slipping out of the quick connector.

[0072] Example 4

[0073] like Figure 6 and 7 A quick connector for an oxygen inhaler includes an inlet end 8 and an outlet end 9. The inlet end 8 is connected to the exhaust channel of the oxygen inhaler, and the outlet end 9 is connected to an external oxygen supply line. A pressure relief hole 2 is provided on the side of the inlet end 8 near the outlet end 9, and a pressure relief tube is clamped on the outside of the pressure relief hole 2. An elastic component, an annular sealing ring 6, is provided on the inner side of the outlet end 9, completely covering the inner side of the outlet end 9. A retaining ring 4 is threadedly connected to the outer side of the outlet end 9. The retaining ring 4 extends downward from the side away from the inlet end 8 to form an extension end 5, which is clamped on the outside of the annular sealing ring 6. A retaining post 7 is provided on the outer side of the retaining ring 4 at the extension end 5, and the retaining posts 7 are symmetrically arranged on both sides of the retaining ring 4. A groove 10 is provided between the extension end 5 and the retaining post 7 for engaging with a clamp 11 on the external oxygen supply line.

[0074] To prevent the external oxygen pipeline from falling off due to excessive pressure when using high-pressure gas sources such as gas cylinders, a retaining post 7 is installed on the outside of the retaining ring 4. A clamp 11 that works with the retaining post 7 is installed on the external oxygen pipeline. The clamp 11 is of the straight shape. The clamp 11 is placed in the clamping groove 10 to achieve fixation, and the external oxygen pipeline is completely fixed in the quick connector. The external oxygen pipeline can be pulled out by removing the clamp 11 from the clamping groove 10.

[0075] Example 5

[0076] An oxygen inhaler has an inlet end 8 of a quick connector connected to the oxygen outlet channel of the inhaler. When nebulization or oxygen therapy is required, an external oxygen tubing is inserted into the quick connector, allowing the inhaler to perform nebulization or oxygen therapy.

[0077] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A quick connector for an oxygen inhaler, comprising an inlet end and an outlet end, the inlet end being connected to an exhaust passage of the oxygen inhaler, the outlet end being connected to an external oxygen line, characterized in that, The air inlet end is provided with a pressure relief hole on the side close to the air outlet end, an outer side of the pressure relief hole is provided with a pressure relief pipe, and an inner side of the air outlet end is provided with an elastic component.

2. The quick connector for an oxygen inhaler according to claim 1, characterized by The elastic component is a sealing ring, and the inner side of the air outlet end is provided with a plurality of installation grooves, and the sealing ring is arranged in the installation grooves.

3. The quick connector for an oxygen inhaler according to claim 1, characterized by The elastic component is a ring-shaped sealing ring, and the ring-shaped sealing ring covers the inner side of the air outlet end.

4. The quick connector for an oxygen inhaler according to claim 1, wherein The material of the elastic component is silica gel.

5. The quick connector for an oxygen inhaler according to any one of claims 1 to 4, characterized in that, The outer side of the air outlet end is in a stepped or pagoda shape.

6. The quick connector for an oxygen inhaler according to claim 5, wherein The outer side of the air outlet end gradually increases in diameter in the direction close to the air inlet end.

7. The quick connector for an oxygen inhaler according to claim 3, wherein The outer side of the air outlet end is provided with a blocking ring, the blocking ring surrounds the periphery of the air outlet end, a side of the blocking ring away from the air inlet end extends downward to form an extending end, and the extending end is clamped on the outer side of the ring-shaped sealing ring.

8. The quick connector for an oxygen inhaler according to claim 7, characterized by The blocking ring is provided with clamping columns on the outer side of the extending end, the clamping columns are symmetrically arranged on both sides of the blocking ring, a clamping groove is arranged between the extending end and the clamping column, and the clamping groove is used for cooperating with a clamping piece on the external oxygen pipeline.

9. The quick connector for an oxygen inhaler according to claim 8, characterized by The clamping piece is in a character shape and is arranged obliquely on the external oxygen pipeline.

10. An oxygen inhaler characterized by, The oxygen inhaler quick connector comprises the oxygen inhaler quick connector according to any one of claims 1-9, and the quick connector is connected with an exhaust passage of the oxygen inhaler.

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