Air inlet sealing structure of medicine suction device

Abstract

The utility model belongs to the field of medicine suction devices, and discloses a medicine suction device air inlet sealing structure which comprises an air inlet pipe and a limiting cover, the air inlet pipe is connected with a fixing pipe, the fixing pipe is connected with an abutting ring, the fixing pipe is connected with a limiting ring, the limiting cover is in sliding connection with the limiting ring, and the limiting cover is provided with an inserting hole and connected with a threaded cylinder. The threaded cylinder is in threaded connection with the fixing pipe, the limiting cover is connected with a pressure ring which is connected with a rubber cylinder, the fixing pipe is connected with a pressure cylinder, and the longitudinal section of the top of the pressure cylinder is wedge-shaped. The limiting cover is connected with a hole sealing device which is used for sealing the inserting hole. According to the technical scheme, a gap between the adsorption mask and the adsorption opening can be sealed through the rubber barrel, medicine loss is avoided, and a patient can better inhale medicine conveniently; the gap can be sealed or unsealed by screwing the limiting cover, so that a patient can easily insert and pull the adsorption mask under the condition of ensuring that the gap is completely blocked, and the operation convenience and practicability are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of drug suction devices, and in particular to the sealing structure of the air inlet of a drug suction device. Background Technology

[0002] Currently, inhaled medications are widely used in the treatment of certain diseases. Patients typically inhale medications through a nebulizer. The basic principle is that the nebulizer atomizes the medication, which is then inhaled into the respiratory tract and lungs through the inhalation port, achieving purposes such as airway cleansing, airway humidification, local treatment, and systemic therapy. To improve the hygiene of nebulizer use, medication is usually absorbed through a mask. A disposable mask is inserted into the inhaler's inhalation port, and the patient's mouth contacts the mask to complete the inhalation. After inhalation, the mask is removed and discarded, reducing contamination of the air inlet and improving the hygiene of the nebulizer. However, in actual use, when the mask is inserted into the inhalation port, a gap often appears between the outer wall of the mask and the inner wall of the inhalation port, causing the medication to leak out, resulting in waste and making it inconvenient for the patient to inhale the medication. Utility Model Content

[0003] The present invention aims to provide a sealing structure for the air inlet of a drug inhaler to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The air inlet sealing structure of the inhaler includes an air inlet pipe and a limiting cover. The air inlet pipe is connected to a fixed pipe, the fixed pipe is connected to an abutment ring, the fixed pipe is connected to a limiting ring, the limiting cover is slidably connected to the limiting ring, the limiting cover has an insertion hole, the limiting cover is connected to a threaded cylinder, the threaded cylinder is threadedly connected to the fixed pipe, the limiting cover is connected to a pressure ring, the pressure ring is connected to a rubber cylinder, the fixed pipe is connected to the pressure cylinder, and the top longitudinal section of the pressure cylinder is wedge-shaped.

[0006] The limiting cover is connected to a sealing device, which is used to seal the insertion hole.

[0007] Preferably, the sealing device includes a fixing frame and a sealing plate. The sealing plate is rotatably connected to the limiting cover, the fixing frame is connected to the limiting cover, the fixing frame is threadedly connected to a threaded rod, and the threaded rod is rotatably connected to a pressure plate. The pressure plate and the sealing plate cooperate with each other.

[0008] Preferably, the abutment ring is connected to an inner cylinder.

[0009] Preferably, the sealing plate is connected with a rubber pad.

[0010] Preferably, the fixing pipe is detachably connected to the air intake pipe.

[0011] Preferably, the pressure ring is rotatably connected to the limiting cover.

[0012] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0013] (1) This technical solution is equipped with a rubber cylinder and a limiting cap. The rubber cylinder can seal the gap between the adsorption mask and the adsorption port to prevent drug leakage and facilitate better drug inhalation by the patient. The gap can be sealed or unsealed by twisting the limiting cap. With the gap completely blocked, the patient can easily insert and remove the adsorption mask, which greatly improves the ease of operation and practicality. The design of the limiting cap, limiting ring and threaded cylinder makes it impossible for the limiting cap to slide out of the fixing tube easily, which facilitates the organization and storage of the device and avoids the situation where the limiting cap cannot be found after separation from the fixing tube, thus improving the ease of use of the structure.

[0014] (2) This technical solution uses a pressure plate to provide pressure, allowing the sealing plate to completely seal the insertion hole. This facilitates the patient's rotation of the sealing plate. The pressure plate is located under the fixing frame, and the sealing plate is rotatably connected to the limiting rod. The sealing plate and pressure plate will not separate from the fixing tube when the device is using the adsorption mask, facilitating subsequent sealing operations and improving the ease of use of the structure. The inner cylinder can abut against the inner wall of the adsorption mask, facilitating the insertion and positioning of the adsorption mask. The rubber pad improves the sealing effect of the sealing plate on the insertion hole, preventing dust and other contaminants from entering the fixing tube when the structure is not in use. The pressure ring is rotatably connected to the limiting cover, allowing the rubber cylinder to be inserted more stably into the gap between the adsorption mask and the pressure cylinder, improving the ease of operation and also improving the sealing performance of the rubber cylinder. Attached Figure Description

[0015] Figure 1 This is a frontal sectional view of the present invention;

[0016] Figure 2 This is a front sectional view of the present invention without the adsorption mask connected;

[0017] Figure 3 A top sectional view of the pressure cylinder provided by this utility model;

[0018] Figure 4 A bottom view of the threaded cylinder provided by this utility model;

[0019] Figure 5 A top view of the limiting cover provided by this utility model;

[0020] Reference numerals in the attached diagram: 1. Inlet pipe; 2. Fixed pipe; 3. Pressure cylinder; 4. Rubber cylinder; 5. Pressure ring; 6. Limiting cap; 7. Limiting ring; 8. Insertion hole; 9. Fixing frame; 10. Adsorption mask; 11. Threaded cylinder; 12. Inner cylinder; 13. Contact ring; 14. Sealing plate; 15. Rubber pad; 16. Threaded rod; 17. Pressure plate. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0022] like Figures 1 to 5 The air inlet sealing structure of the inhaler shown includes an air inlet pipe 1 and a limiting cover 6. The air inlet pipe 1 is connected to a fixed pipe 2, and the lower side of the air inlet pipe 1 communicates with the inhaler. The air inlet pipe 1, as described in this application, enters the inhalation port. An abutment ring 13 is connected to the inner side of the fixed pipe 2, with an opening in the middle of the abutment ring 13. A limiting ring 7 is connected to the outer side of the top of the fixed pipe 2. The outer diameter of the limiting ring 7 is larger than the outer diameter of the fixed pipe 2. The limiting cover 6 is slidably connected to the limiting ring 7. Figure 1 As shown, the limiting cover 6 can slide up and down relative to the limiting ring 7 and rotate relative to the limiting ring 7. The inner diameter of the limiting cover 6 is smaller than the outer diameter of the limiting ring 7. Therefore, the limiting cover 6 cannot slide up and detach from the connection with the fixed tube 2. The limiting cover 6 is provided with a plug hole 8. A threaded cylinder 11 is connected to the lower side of the limiting cover 6. The threaded cylinder 11 is threadedly connected to the outer wall of the fixed tube 2. A pressure ring 5 is rotatably connected to the inner side of the limiting cover 6. A rubber cylinder 4 is connected to the bottom of the pressure ring 5. The rubber cylinder 4 is made of rubber with a certain elastic deformation ability. A pressure cylinder 3 is connected to the inner wall of the fixed tube 2. The top longitudinal section of the pressure cylinder 3 is wedge-shaped.

[0023] The limiting cover 6 is connected to a sealing device, which is used to seal the insertion hole 8. The sealing device includes a fixing frame 9 and a sealing plate 14. A rubber pad 15 is connected to the bottom of the sealing plate 14. The sealing plate 14 is rotatably connected to the limiting cover 6. The fixing frame 9 is connected to the limiting cover 6. The fixing frame 9 is threadedly connected to a threaded rod 16. The threaded rod 16 is rotatably connected to a pressure plate 17. The pressure plate 17 and the sealing plate 14 cooperate with each other.

[0024] The contact ring 13 is connected to the inner cylinder 12. The inner diameter of the inner cylinder 12 is larger than the diameter of the hole opened in the middle of the contact ring 13. The fixing pipe 2 and the air inlet pipe 1 are detachably connected by bolts.

[0025] When the structure is not in use, the sealing plate 14 covers the top of the insertion hole 8, and the pressure plate 17 presses the sealing plate 14 tightly. Figure 2 As shown, the sealing plate 14 cannot be easily rotated at this time, which allows the sealing plate 14 to stably seal the insertion hole 8, preventing dust and other substances from entering the fixed tube 2 and improving the sealing performance; when needed, the threaded rod 16 is turned, and the threaded rod 16 drives the pressure plate 17 to move upward. At this time, the sealing cover can be easily rotated, thereby opening the insertion hole 8.

[0026] When the structure is not in use, the bottom of the rubber cylinder 4 is located above the top of the pressure cylinder 3. Remove the adsorption mask 10. The lower insertion end of the adsorption mask 10 is generally made of hard plastic. Insert the lower end of the adsorption mask 10 into the insertion hole 8, and then move the adsorption mask 10 downwards. The lower part of the adsorption mask 10 passes through the insertion hole 8, the pressure ring 5, and the rubber cylinder 4 in sequence until the bottom of the adsorption mask 10 contacts the contact ring 13. At this point, the adsorption mask 10 cannot move further downwards, and the inner cylinder 12 is located inside the adsorption mask 10. In actual installation, the diameter of the insertion hole 8, the hollow diameter of the rubber cylinder 4, and the hollow diameter of the pressure ring 5 can all be the same as or slightly larger than the lower outer diameter of the adsorption mask 10. Since the rubber cylinder 4 is still above the pressure cylinder 3, it does not compress the adsorption mask 10. Therefore, the adsorption mask 10 can be easily inserted into the fixing tube 2. After the adsorption mask 10 is inserted into the fixing tube 2, rotate the limiting cover 6. When the threaded cylinder 11 rotates, it causes the threaded cylinder 11 and the limiting cover 6 to rotate and move downwards along the fixed tube 2, thereby driving the pressure ring 5 and the rubber cylinder 4 downwards. As the rubber cylinder 4 moves downwards, it gradually inserts into the space between the outer wall of the adsorption mask 10 and the inner wall of the pressure cylinder 3. As the rubber cylinder 4 continues to move downwards, its sidewall is squeezed into the space between the outer wall of the adsorption mask 10 and the inner wall of the pressure cylinder 3. At this time, the inner and outer sides of the rubber cylinder 4 are in tight contact with the outer wall of the adsorption mask 10 and the inner wall of the pressure cylinder 3, respectively, thus sealing the gap between the adsorption mask 10 and the pressure cylinder 3. Because the inner and outer sides of the rubber cylinder 4 are in tight contact with the outer wall of the adsorption mask 10 and the inner wall of the pressure cylinder 3, the rubber cylinder 4 cannot rotate easily. At this time, because the pressure ring 5 is rotatably connected to the limiting cover 6, the rubber cylinder 4 can move vertically downwards as the limiting cover 6 rotates and moves downwards, thus completely sealing the gap between the adsorption mask 10 and the pressure cylinder 3. Figure 1 As shown. At this time, the atomized medicine will only flow along the air inlet tube 1, the fixed tube 2, and the adsorption mask 10, making it easy for the patient to adsorb the medicine. After use, twist the limiting cap 6 to move it upward, so that it contacts the rubber cylinder 4 to squeeze the adsorption mask 10. Then the adsorption mask 10 can be easily pulled out. Then rotate the cap above the insertion hole 8 and twist the threaded rod 16 so that the pressure plate 17 tightly abuts against the sealing plate 14. Furthermore, in order to further improve the sealing, the threaded rod 16 can be twisted downward to further seal the gap between the threaded cylinder 11 and the fixed tube 2, preventing air and impurities from entering the fixed tube 2.

[0027] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A sealing structure for the air inlet of a drug suction device, characterized in that: Includes an air intake pipe (1) and a limiting cover (6). The air intake pipe (1) is connected to a fixed pipe (2). The fixed pipe (2) is connected to an abutment ring (13). The fixed pipe (2) is connected to a limiting ring (7). The limiting cover (6) is slidably connected to the limiting ring (7). The limiting cover (6) is provided with an insertion hole (8). The limiting cover (6) is connected to a threaded cylinder (11). The threaded cylinder (11) is threadedly connected to the fixed pipe (2). The limiting cover (6) is connected to a pressure ring (5). The pressure ring (5) is connected to a rubber cylinder (4). The fixed pipe (2) is connected to a pressure cylinder (3). The top longitudinal section of the pressure cylinder (3) is wedge-shaped. The limiting cover (6) is connected to a sealing device, which is used to seal the insertion hole (8).

2. The sealing structure of the air inlet of the suction device as described in claim 1, characterized in that: The sealing device includes a fixing frame (9) and a sealing plate (14). The sealing plate (14) is rotatably connected to the limiting cover (6). The fixing frame (9) is connected to the limiting cover (6). The fixing frame (9) is threadedly connected to a threaded rod (16). The threaded rod (16) is rotatably connected to a pressure plate (17). The pressure plate (17) and the sealing plate (14) cooperate with each other.

3. The air inlet sealing structure of the inhaler as described in claim 1, characterized in that: The abutment ring (13) is connected to the inner cylinder (12).

4. The air inlet sealing structure of the suction device as described in claim 2, characterized in that: The sealing plate (14) is connected to a rubber pad (15).

5. The air inlet sealing structure of the suction device as described in claim 1, characterized in that: The fixed tube (2) is detachably connected to the air inlet tube (1).

6. The air inlet sealing structure of the inhaler as described in claim 1, characterized in that: The pressure ring (5) is rotatably connected to the limiting cover (6).

Images