Anti-suck back nasal cup

Abstract

The utility model discloses a kind of anti-suck back's suction cups in the field of suction cup, including upper cover and lower cup, the upper cover outer surface is equipped with suction head, the upper cover inside is equipped with baffle, lower cup is equipped with passageway structure, the outer wall of passageway structure is equipped with isolation chamber, the outlet of isolation chamber with passageway structure is connected by anti-suck back pipe, passageway structure extends to lower cup outside;Passageway structure includes air inlet and air outlet, air inlet connects negative pressure device, air outlet is connected with isolation chamber by anti-suck back pipe, anti-suck back pipe and the clearance fit between isolation chamber.The suction cup provided by the utility model, by setting baffle on upper cover and being equipped with isolation chamber on lower cup, and being connected between isolation chamber and passageway structure by anti-suck back pipe, increase negative pressure transmission path, baffle separates passageway structure and suction head, avoid the foreign matter after being inhaled into passageway structure into negative pressure device, damage device.

Description

Technical Field

[0001] This utility model relates to the field of nasal aspirator cups, and more particularly to a nasal aspirator cup that prevents backflow. Background Technology

[0002] A nasal aspirator is a nasal care product designed specifically for infants or young children. Its working principle is that the negative pressure pump inside the main unit generates negative pressure, which is transmitted to the nasal aspirator head through the tube. The aspirator head is inserted into the child's nasal cavity, and the negative pressure is used to suction out the mucus inside the nasal cavity.

[0003] During use, problems often arise where nasal mucus is sucked back into the main unit due to untimely cleaning or incorrect usage angle, resulting in reduced lifespan or even damage to the main unit. The solutions currently available on the market are mainly electronic control or partitions. However, electronic control has sensitivity issues, and partitions are often limited by the usage angle and therefore cannot effectively prevent backflow. Utility Model Content

[0004] The purpose of this invention is to provide a nasal aspirator cup that prevents backflow by setting up a baffle and an isolation cavity.

[0005] To solve the above technical problems, the following technical solution is adopted:

[0006] This utility model provides a nose suction cup with anti-backflow function, including an upper cover and a lower cup. The outer surface of the upper cover is provided with a suction head, and the inside of the upper cover is provided with a baffle. The lower cup is provided with a channel structure, and the outer wall of the channel structure is provided with an isolation cavity. The isolation cavity is connected to the outlet of the channel structure through an anti-backflow tube. The channel structure extends to the outside of the lower cup.

[0007] The channel structure includes an air inlet located outside the lower cup and an air outlet located inside the lower cup. The air inlet is connected to a negative pressure device, and the air outlet is connected to an isolation chamber via an anti-backflow tube. The anti-backflow tube is in clearance fit with the isolation chamber.

[0008] Optionally, the anti-backflow tube has a U-shaped structure.

[0009] Optionally, the anti-backflow tube is made of silicone.

[0010] Optionally, the baffle divides the internal space of the upper cover into a first chamber and a second chamber, the suction head is located in the first chamber, the air outlet is located in the second chamber, and the first chamber and the second chamber are connected to the inner cavity of the lower cup.

[0011] Optionally, the channel structure is a columnar structure with a through hole inside, located in the middle of the lower cup, and the end face of the air inlet is higher than the opening end face of the lower cup.

[0012] Optionally, the upper end face of the isolation cavity is lower than the end face of the air inlet, and the lower end face of the isolation cavity is attached to the bottom of the lower cup.

[0013] Optionally, the suction head is inclinedly disposed on the upper cover, with a portion located outside the upper cover and another portion located inside the upper cover, and a through hole is provided inside the suction head.

[0014] Optionally, a sealing groove is provided at the connection between the upper cover and the lower cup, and a sealing ring is provided in the sealing groove.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0016] 1. The nasal aspirator cup provided by this utility model increases the negative pressure transmission path by setting a baffle on the upper cover and an isolation cavity on the lower cup, and connecting the isolation cavity and the channel structure with an anti-backflow tube. The baffle separates the channel structure and the suction head, preventing foreign objects from entering the channel structure and then entering the negative pressure device, thus preventing damage to the device.

[0017] 2. The internal structural channel of the nasal aspirator cup provided by this utility model is higher than the opening end face of the lower cup. The higher channel structure can also prevent foreign objects from entering the lower cup. The anti-backflow tube is a U-shaped structure. When installed on the isolation cavity and channel structure, it is an inverted U-shaped structure, which reduces the probability of foreign objects entering the channel structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the anti-backflow nasal aspirator cup in an embodiment of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the anti-backflow nose cup in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the lower cup in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the upper cover in an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Suction head; 2. Top cover; 201. Baffle; 202. First chamber; 203. Second chamber; 3. Sealing ring; 4. Lower cup; 401. Channel structure; 402. Isolation chamber; 403. Air outlet; 404. Air inlet; 5. Anti-backflow tube. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1

[0027] like Figure 1 , Figure 2 As shown, this embodiment provides a nasal aspirator cup with anti-backflow function, including an upper cover 2 and a lower cup 4. The upper cover 2 is provided with a suction head 1. One end of the suction head 1 is located outside the upper cover 2, and the other end penetrates the upper cover 2 and is located inside the upper cover 2. The suction head 1 is inserted into the nasal cavity for use. The upper cover 2 is also provided with a baffle 201. The baffle 201 is located on the side of the suction head 1. The baffle 201 is flush with the end face of the upper cover 2. The baffle 201 divides the internal space of the upper cover 2 into two parts, and the suction head 1 is located in one of the parts.

[0028] like Figure 2 , Figure 3As shown, the lower cup 4 is provided with a channel structure 401. One end of the channel structure 401 penetrates the bottom of the lower cup 4 and is located outside the lower cup 4. The two ends of the channel structure 401 are an air inlet 404 and an air outlet 403, respectively. The air inlet 404 is located outside the lower cup 4, and the air outlet 403 is located inside the lower cup 4. An isolation cavity 402 is provided on the outer wall of the channel structure 401, and the air outlet 403 is connected to the isolation cavity 402 through an anti-backflow tube 5.

[0029] After the upper cover 2 and the lower cup 4 are installed together, the baffle 201 and the isolation cavity 402 are located on opposite sides of the channel structure 401. Through the combined action of the baffle 201 and the isolation cavity 402, foreign objects entering from the suction head 1 are prevented from being sucked back into the channel structure 401.

[0030] The anti-backflow tube 5 is fitted with the isolation chamber 402 with a gap. The air outlet 403 is connected to the negative pressure device through a conduit. The negative pressure device provides negative pressure to the nasal aspirator cup. The negative pressure passes through the channel structure 401 and the anti-backflow tube 5 in sequence, and enters the lower cup 4 through the gap between the anti-backflow tube 5 and the isolation chamber 402. Since the anti-backflow tube 5 is made of soft silicone, it will deform when the negative pressure passes through, and the gap between the anti-backflow tube 5 and the isolation chamber 402 will increase, allowing the negative pressure to pass through better. The negative pressure passes through the suction head 1 and enters the nasal cavity, sucking out foreign objects in the nasal cavity into the lower cup 4.

[0031] Example 2

[0032] This embodiment provides an anti-backflow nasal aspirator cup based on Embodiment 1, such as... Figure 2 , Figure 4 As shown, the baffle 201 is flush with the opening end face of the upper cover 2, dividing the internal space of the upper cover 2 into a first chamber 202 and a second chamber 203. The suction head 1 is located in the first chamber 202, and the channel structure 401 extends from the lower cup 4 to the second chamber 203 of the upper cover 2. Through the action of the baffle 201, the suction head 1 and the channel structure 401 are separated to prevent foreign objects entering from the suction head 1 from adhering to the channel structure 401.

[0033] The channel structure 401 is a columnar structure with a through hole and is located in the middle of the lower cup 4. The height of the channel structure 401 inside the lower cup 4 is higher than the opening end face of the lower cup 4. The isolation cavity 402 is located on the outer wall of the channel structure 401 and is lower than the end face of the air outlet 403 of the channel structure 401.

[0034] The outer wall of the air outlet 403 on the channel structure 401 is provided with an annular platform, which contacts and fits with one end face of the anti-backflow pipe 5. The inner diameter of the isolation chamber 402 is relatively large. The anti-backflow pipe 5 is located inside the isolation chamber 402 and is clearance-fitted with the isolation chamber 402. The air outlet 403 is located inside the anti-backflow pipe 5 and is tightly fitted with the anti-backflow pipe 5.

[0035] like Figure 2 , Figure 3 As shown, the anti-backflow pipe 5 has a U-shaped structure with different heights at both ends. The end that mates with the air outlet 403 is shorter, while the end that mates with the isolation chamber 402 is longer. This allows it to adapt to isolation chambers 402 and channel structures 401 of different heights. When the anti-backflow pipe 5 is installed on the isolation chamber 402 and air outlet 403, it is in an inverted U-shape, increasing the negative pressure transmission path and reducing the probability of foreign objects entering the channel structure 401.

[0036] The outer surface of the upper cover 2 is provided with a platform that mates with the end face of the lower cup 4. A sealing groove for installing the sealing ring 3 is provided on the outer surface of the upper cover 2. By installing the sealing ring 3 in the sealing groove, the sealing ring 3 is located between the upper cover 2 and the lower cup 4 to seal.

[0037] The anti-backflow tube 5 is made of silicone, and the top cover 2 is made of PC material.

[0038] The lower end face of the isolation chamber 402 fits into the bottom of the lower cup 4. After the upper cover 2 and the lower cup 4 are fitted together, the upper end face of the isolation chamber 402 exceeds the lowest position of the upper cover 2. The internal space is large and can accommodate more foreign objects. Only when the height of the foreign objects inside exceeds the height of the isolation chamber 402 can the foreign objects inside enter the channel structure 401 through the gap between the isolation chamber 402 and the anti-backflow tube 5.

[0039] like Figure 2 As shown, the suction head is tilted and extends through the upper cover 2. The suction head is made of silicone material and has through holes inside. The diameter of the through holes ranges from 2 to 5 mm.

[0040] In use, the air inlet 404 is connected to the negative pressure device via a hose. When the negative pressure device is activated, the generated negative pressure acts on the nasal cavity through the nasal aspirator cup, drawing out foreign objects and storing them inside the cup. As the negative pressure passes through the cup, it sequentially passes through the air inlet 404, the air outlet 403, the anti-backflow tube 5, the lower cup 4, and the suction head 1, finally reaching the nasal cavity. When foreign objects enter the nasal aspirator cup from the suction head 1, they are discharged from the end of the suction head 1 located inside the upper cover 2. Because the baffle 201 separates the suction head 1 from the channel structure 401, the foreign objects flow into the bottom of the lower cup 4, preventing splashing of foreign objects from entering through the gap between the anti-backflow tube 5 and the isolation chamber 402. The foreign objects flowing into the lower cup 4 must completely fill it to prevent backflow into the channel structure 401, thus reducing the risk of backflow.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A nasal aspirator cup with anti-backflow function, comprising an upper cover and a lower cup, wherein the outer surface of the upper cover is provided with a suction head, characterized in that, The upper cover has a baffle inside, the lower cup has a channel structure inside, the outer wall of the channel structure has an isolation cavity, the isolation cavity is connected to the outlet of the channel structure through an anti-backflow tube, and the channel structure extends to the outside of the lower cup; The channel structure includes an air inlet located outside the lower cup and an air outlet located inside the lower cup. The air inlet is connected to a negative pressure device, and the air outlet is connected to an isolation chamber via an anti-backflow tube. The anti-backflow tube is in clearance fit with the isolation chamber.

2. The anti-backflow nasal aspirator cup according to claim 1, characterized in that, The anti-backflow tube has a U-shaped structure.

3. The anti-backflow nasal aspirator cup according to claim 1, characterized in that, The anti-backflow tube is made of silicone.

4. The anti-backflow nasal aspirator cup according to claim 1, characterized in that, The baffle divides the internal space of the upper cover into a first chamber and a second chamber. The suction head is located in the first chamber, and the air outlet is located in the second chamber. The first chamber and the second chamber are connected to the inner cavity of the lower cup.

5. The anti-backflow nasal aspirator cup according to claim 1, characterized in that, The channel structure is a columnar structure with a through hole inside, located in the middle of the lower cup, and the end face of the air inlet is higher than the opening end face of the lower cup.

6. The anti-backflow nasal aspirator cup according to claim 1, characterized in that, The upper end face of the isolation chamber is lower than the end face of the air inlet, and the lower end face of the isolation chamber is attached to the bottom of the lower cup.

7. The anti-backflow nasal aspirator cup according to claim 1, characterized in that, The suction head is inclinedly disposed on the upper cover, with a portion located outside the upper cover and another portion located inside the upper cover. A through hole is provided inside the suction head.

8. The anti-backflow nasal aspirator cup according to claim 1, characterized in that, A sealing groove is provided at the connection between the upper cover and the lower cup, and a sealing ring is provided in the sealing groove.

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