A flowmeter connection device for a humidification bottle

Abstract

The utility model provides a kind of connecting device of flowmeter and humidification bottle, belong to humidification bottle accessory technical field. Including the connecting head for intercommunication flowmeter and humidification bottle, the outer thread for being used to the gas outlet thread connection of flowmeter is equipped on the outer wall of one end of connecting head, the inner thread for being used to the gas inlet thread connection of humidification bottle is equipped on the inner wall of another end of connecting head, relief hole is set up on the side wall of connecting head, and flexible relief ring is sleeved at relief hole. When the air pressure in humidification bottle is too large, oxygen can lift relief ring to make it expand outward, and discharge from relief hole, to achieve the effect of pressure relief explosion-proof, with the effect of improving the use safety of humidification bottle.

Description

Technical Field

[0001] This utility model relates to the technical field of humidification bottle accessories, and in particular to a connection device between a flow meter and a humidification bottle. Background Technology

[0002] Oxygen humidification bottles are a type of rehabilitation equipment and ward nursing consumable, mainly used in conjunction with the oxygen supply system of medical centers to provide humidified oxygen to emergency and hypoxic patients.

[0003] The humidification bottle needs to be connected to the oxygen supply system via a flow meter, which allows adjustment of the oxygen supply per unit time. The oxygen supply system continuously outputs dry oxygen, which, after passing through the flow meter, enters the liquid inside the humidification bottle for humidification. The humidified oxygen is then discharged from the outlet of the humidification bottle and supplied to the patient for inhalation.

[0004] However, in practical applications, excessive oxygen intake or blockage of the humidifier's outlet can easily lead to excessive oxygen pressure inside the humidifier. Humidifiers are usually made of plastic, and when the pressure they withstand approaches their bursting limit, or when the plastic ages and becomes brittle, the humidifier is prone to bursting. Utility Model Content

[0005] In view of the above problems, this utility model provides a connection device between a flow meter and a humidification bottle.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A connection device for a flow meter and a humidification bottle is provided, including a connector for connecting the flow meter and the humidification bottle. One end of the connector has an external thread on its outer wall for threaded connection with the outlet of the flow meter, and the other end of the connector has an internal thread on its inner wall for threaded connection with the inlet of the humidification bottle. A pressure relief hole is provided on the side wall of the connector, and a flexible pressure relief ring is fitted at the pressure relief hole.

[0008] Furthermore, the connector includes a first sleeve and a second sleeve that are coaxially rotatably connected. Multiple pressure relief holes are spaced apart along the circumference of the second sleeve. One end of the first sleeve is located inside one end of the second sleeve and is provided with a boss for opening / closing the multiple pressure relief holes. The second sleeve is provided with a limiting member for restricting the rotation of the first sleeve relative to itself. An external thread is provided on the outer wall of the end of the second sleeve away from the first sleeve, and an internal thread is provided on the inner wall of the end of the first sleeve away from the second sleeve. A pressure relief ring is sleeved on the outer wall of the second sleeve and located at the pressure relief hole position.

[0009] Furthermore, the limiting element includes a set screw, which is threaded onto the second sleeve and movably abuts against the outer wall of the first sleeve.

[0010] Furthermore, a convex ring is fixed on the inner wall of the pressure relief ring, and an annular groove for interlocking with the convex ring is opened on the outer wall of the second sleeve.

[0011] Furthermore, one end of the pressure relief ring has a chamfer at its inner edge.

[0012] Furthermore, the pressure relief ring is made of silicone material.

[0013] The beneficial effects of this utility model are as follows: the two ends of the connector are threadedly connected to the outlet of the flow meter and the inlet of the humidification bottle, respectively, so that the flow meter and the humidification bottle can be connected; then the inlet of the flow meter is connected to the oxygen supply system, so that oxygen can be injected into the humidification bottle for humidification; when the gas pressure in the humidification bottle is too high, the oxygen can push up the pressure relief ring to expand it outward and be discharged from the pressure relief hole, so as to achieve the function of pressure relief and explosion prevention, and improve the safety of the humidification bottle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a connection device between a flow meter and a humidification bottle according to an embodiment of this application.

[0015] Figure 2 This is a cross-sectional structural schematic diagram of a connection device between a flow meter and a humidification bottle according to an embodiment of this application.

[0016] Figure 3 This is an exploded view of a connection device between a flow meter and a humidification bottle according to an embodiment of this application.

[0017] Among them, 1. Connector; 11. First sleeve; 111. External thread; 12. Second sleeve; 121. Internal thread; 122. Ring groove; 123. Threaded hole; 2. Pressure relief hole; 3. Pressure relief ring; 31. Chamfer; 4. Boss; 5. Limiting component; 51. Set screw; 6. Raised ring. Detailed Implementation

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] This application discloses a connection device between a flow meter and a humidification bottle, referring to... Figure 1 , Figure 2 and Figure 3 The connector 1 is used to connect the flow meter and the humidification bottle. One end of the connector 1 has an external thread 111 on its outer wall for threaded connection with the flow meter outlet. The other end of the connector 1 has an internal thread 121 on its inner wall for threaded connection with the humidification bottle inlet. A pressure relief hole 2 is provided on the side wall of the connector 1, and a flexible pressure relief ring 3 is fitted at the pressure relief hole 2.

[0020] In this embodiment, the pressure relief ring 3 is made of silicone material. The two ends of the connector 1 are threadedly connected to the outlet of the flow meter and the inlet of the humidification bottle, respectively, thus connecting the flow meter to the humidification bottle. Then, the inlet of the flow meter is connected to the oxygen supply system, allowing oxygen to be injected into the humidification bottle for humidification. When the pressure inside the humidification bottle is too high, the oxygen can push up the pressure relief ring 3, causing it to expand outwards and exit through the pressure relief hole 2, achieving pressure relief and explosion prevention, thereby improving the safety of the humidification bottle.

[0021] The connector 1 includes a first sleeve 11 and a second sleeve 12 that are coaxially rotatably connected. Multiple pressure relief holes 2 are spaced apart circumferentially along the second sleeve 12. One end of the first sleeve 11 is located inside one end of the second sleeve 12 and is integrally fixed with a boss 4 for opening / closing the multiple pressure relief holes 2. A limiting member 5 is provided on the second sleeve 12 to restrict the rotation of the first sleeve 11 relative to itself. An external thread 111 is provided on the outer wall of the second sleeve 12 at the end away from the first sleeve 11, and an internal thread 121 is provided on the inner wall of the first sleeve 11 at the end away from the second sleeve 12. A pressure relief ring 3 is sleeved on the outer wall of the second sleeve 12 and located at the pressure relief hole 2.

[0022] In this embodiment of the application, rotating the first sleeve 11 allows the boss 4 to seal multiple pressure relief holes 2 one by one. By changing the number of pressure relief holes 2 sealed, the pressure relief effect can be adjusted.

[0023] Specifically, the limiting member 5 includes a set screw 51, which is threaded onto the second sleeve 12 and movably abuts against the outer wall of the first sleeve 11.

[0024] In this embodiment, the second sleeve 12 has a threaded hole 123 on its side wall that is adapted to the size of the set screw 51. The set screw 51 is threaded into the threaded hole 123. By rotating the set screw 51 and making one end of it abut against the outer wall of the first sleeve 11, the rotation of the first sleeve 11 relative to the second sleeve 12 can be restricted.

[0025] To improve the installation stability of the pressure relief ring 3 on the second sleeve 12, a protruding ring 6 is integrally fixed on the inner wall of the pressure relief ring 3, and an annular groove 122 is provided on the outer wall of the second sleeve 12 for insertion and engagement with the protruding ring 6.

[0026] To facilitate fitting the pressure relief ring 3 onto the outside of the second sleeve 12, a chamfer 31 is provided at one end of the pressure relief ring 3 at its inner edge.

[0027] The implementation principle of the connection device between a flow meter and a humidification bottle in this embodiment is as follows: the two ends of the connector 1 are threadedly connected to the outlet of the flow meter and the inlet of the humidification bottle, respectively, thus connecting the flow meter and the humidification bottle; then, the inlet of the flow meter is connected to the oxygen supply system, allowing oxygen to be injected into the humidification bottle for humidification. When the pressure inside the humidification bottle is too high, the oxygen can push up the pressure relief ring 3 to expand outward and be discharged from the pressure relief hole 2, thereby achieving the function of pressure relief and explosion prevention, and improving the safety of using the humidification bottle.

[0028] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A connection device between a flow meter and a humidification bottle, characterized in that: The device includes a connector (1) for connecting the flow meter and the humidification bottle. One end of the connector (1) has an external thread (111) on its outer wall for threaded connection with the flow meter outlet. The other end of the connector (1) has an internal thread (121) on its inner wall for threaded connection with the humidification bottle inlet. The connector (1) has a pressure relief hole (2) on its side wall and a flexible pressure relief ring (3) is fitted at the pressure relief hole (2).

2. The connection device between a flow meter and a humidification bottle according to claim 1, characterized in that: The connector (1) includes a first sleeve (11) and a second sleeve (12) that are coaxially rotatably connected. Multiple pressure relief holes (2) are provided circumferentially along the second sleeve (12). One end of the first sleeve (11) is located inside one end of the second sleeve (12) and is provided with a boss (4) for opening / closing multiple pressure relief holes (2). The second sleeve (12) is provided with a limiting member (5) for restricting the rotation of the first sleeve (11) relative to itself. The external thread (111) is provided on the outer wall of the second sleeve (12) away from the first sleeve (11). The internal thread (121) is provided on the inner wall of the first sleeve (11) away from the second sleeve (12). The pressure relief ring (3) is sleeved on the outer wall of the second sleeve (12) and located at the pressure relief hole (2).

3. The connection device between the flow meter and the humidification bottle according to claim 2, characterized in that: The limiting member (5) includes a set screw (51), which is threaded onto the second sleeve (12) and movably abuts against the outer wall of the first sleeve (11).

4. The connection device between the flow meter and the humidification bottle according to claim 2, characterized in that: A protruding ring (6) is fixed on the inner wall of the pressure relief ring (3), and an annular groove (122) for inserting and engaging with the protruding ring (6) is provided on the outer wall of the second sleeve (12).

5. The connection device between a flow meter and a humidification bottle according to claim 1, characterized in that: One end of the pressure relief ring (3) has a chamfer (31) at its inner edge.

6. The connection device between a flow meter and a humidification bottle according to claim 1, characterized in that: The pressure relief ring (3) is made of silicone material.

Images