Air inlet valve for nasal irrigator

Abstract

The technical problem to be solved by the utility model is to provide the air inlet valve for the nose washing device, the air inlet valve is relatively simple in structure, the easy abrasion between valve parts is effectively reduced, and the service life of the air inlet valve is effectively prolonged. The air inlet valve comprises a valve body, the valve body comprises a U-shaped plate, a first baffle and a second baffle, the first baffle and the second baffle are arranged at the front end and the rear end of the U-shaped plate respectively and are integrally formed, an air inlet hole is formed in the first baffle, and a sealing plate is arranged at the air inlet hole through a displacement structure; the switch pressing plate is arranged at the upper end of the valve body and connected with the shifting structure, shifting of the sealing plate can be achieved by pressing the switch pressing plate leftwards and rightwards, then the air inlet hole is opened and sealed, and external air enters the bottle body of the nasal irrigator through the air inlet hole. The nasal cavity cleaning bottle is simple to operate and suitable for popularization and application in the technical field of nasal cavity cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of nasal cleaning, in particular to an air inlet valve for a nasal washer. Background Art

[0002] The nasal washer, known as the "scavenger" tool in the field of nasal care, is gradually becoming popular in the daily life of the public. Its birth has lit up the light of hope for many individuals suffering from rhinitis. The operating mechanism of this device is quite direct: by introducing physiological saline or a specific cleaning solution into the nasal cavity, it effectively removes accumulated dirt and bacteria, and maintains the freshness and health of the nasal cavity.

[0003] From a professional medical perspective, nasal irrigation as a means of treating rhinitis has been widely recognized for its effectiveness. This method can not only effectively alleviate a variety of rhinitis symptoms, but also has the advantages of simple operation, high safety and no adverse reactions, making it suitable for long-term adoption. Especially considering the large number of rhinitis patients in my country, the market demand for nasal washers continues to rise. However, the existing nasal washers on the market face some challenges in the design of the air inlet valve. The air inlet valve structure of the nasal washer is relatively complex, and the valve parts are prone to wear, jamming or damage, which affects the normal regulation of the airflow and reduces its service life. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an air intake valve for a nasal washer, which has a relatively simple structure, effectively reduces the wear and tear between valve parts, and effectively prolongs the service life of the air intake valve.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows: the air inlet valve for the nasal washer comprises a valve body, the valve body comprises a U-shaped plate, a first baffle plate, and a second baffle plate, the first baffle plate and the second baffle plate are respectively arranged at the front and rear ends of the U-shaped plate and are integrally formed;

[0006] The first baffle plate is provided with an air inlet hole, and a sealing plate is provided at the air inlet hole through a displacement structure and is located on the inner surface of the first baffle plate;

[0007] A switch pressing plate is arranged at the upper end of the valve body, the switch pressing plate is connected to the displacement structure, and the switch pressing plate is used to control the sealing plate to open or seal the air inlet hole.

[0008] Furthermore, the displacement structure includes a first rotating shaft, and the front and rear ends of the first rotating shaft are respectively arranged on the upper ends of the inner surfaces of the first baffle plate and the second baffle plate through bearings;

[0009] The first rotating shaft is sleeved with a rotating rod, a movable rod is arranged on the front side of the rotating rod, a sliding block is arranged at the lower end of the movable rod, the vertical cross section of the sliding block is an isosceles trapezoid, and a semicircular sliding end is arranged at the lower end of the sliding block;

[0010] The movable rod is provided with a slide groove which completely penetrates the movable rod in the front-to-back direction, the slide groove is provided with a second rotating shaft, one end of the second rotating shaft is provided at the lower end of the front side surface of the rotating rod, and the other end of the second rotating shaft is provided at the center position of the rear side surface of the sealing plate;

[0011] The upper sleeve of the movable rod is provided with a compression spring and is located between the sliding end and the second rotating shaft;

[0012] A connecting block is provided on the first rotating shaft, and the upper end of the connecting block is connected to the switch pressing plate. In the initial state, the right end of the switch pressing plate is in a low position, and the sliding end is located at the intersection of the right side wall and the bottom wall. The second rotating shaft is located at the upper end of the slide groove, and the sealing plate completely seals the air inlet.

[0013] Furthermore, the inner surface of the bottom wall of the U-shaped plate is a concave arc surface;

[0014] The inner side of the intersection of the left side wall and the bottom wall of the U-shaped plate is an arc-shaped surface, and the arc is the same as the arc of the sliding end;

[0015] The inner side of the position where the right side wall of the U-shaped plate intersects with the bottom wall is an arc-shaped surface, and the arc is the same as the arc of the sliding end.

[0016] Furthermore, a first limit block is provided on the inner surface of the left side wall of the U-shaped plate, and a second limit block is provided on the inner surface of the right side wall of the U-shaped plate and is symmetrical with the first limit block; in the initial state, the lower end of the rotating rod rests on the second limit block and the compression spring is in a compressed state.

[0017] Furthermore, a layer of sealing gasket is provided on the front surface of the sealing plate.

[0018] Furthermore, the U-shaped plate, the first baffle plate and the second baffle plate are all made of medical-grade plastic material.

[0019] The beneficial effects of the utility model are as follows:

[0020] The valve body of the air inlet valve only includes a U-shaped plate, a first baffle plate, and a second baffle plate. A sealing plate is provided in the valve body through a displacement structure. The sealing plate can be shifted by pressing the switch pressing plate left and right, thereby realizing the opening and sealing of the air inlet hole. The outside air enters the bottle body of the nasal washer through the air inlet hole, so that the physiological saline or specific cleaning solution in the bottle body flows into the nasal cavity for flushing. The structure of the air inlet valve is relatively simple, and the valve parts are not prone to wear, which effectively prolongs its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the air inlet valve used in the nasal washer described in the utility model;

[0022] Figure 2 It is a front view of the internal structure of the valve body described in the utility model;

[0023] Figure 3 It is a schematic diagram of the initial state of the displacement structure described in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the displacement structure described in the utility model;

[0025] Figure 5 It is a front view of a partial structure of the displacement structure of the utility model;

[0026] Figure 6 This is a structural schematic diagram of the valve body of the utility model in which the air inlet hole is open;

[0027] Figure 7 It is a front view of the internal structure of the valve body when the air inlet hole of the utility model is opened;

[0028] Figure 8 This is a schematic diagram of the state of the displacement structure when the air inlet hole of the utility model is opened;

[0029] Markings in the figure are as follows: valve body 1, U-shaped plate 101, first baffle 102, second baffle 103, air inlet 2, sealing plate 3, switch pressing plate 4, shift structure 5, first rotating shaft 501, rotating rod 502, movable rod 503, sliding block 504, sliding end 505, sliding groove 506, second rotating shaft 507, compression spring 508, connecting block 6, first limit block 7, second limit block 8. DETAILED DESCRIPTION

[0030] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0031] It should be noted that the directions or positional relationships indicated by all directional indication terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" in the embodiments of the present application are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. They are only used to explain the relative positional relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0032] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0034] like Figure 1-8As shown, the air inlet valve for the nasal wash device includes a valve body 1, the valve body 1 includes a U-shaped plate 101, a first baffle 102, and a second baffle 103, the first baffle 102 and the second baffle 103 are respectively arranged at the front and rear ends of the U-shaped plate 101 and the three are integrally formed, and the integral forming can improve the sealing performance of the valve body 1. The air inlet valve is generally arranged at the center of the bottom of the nasal wash bottle body. This setting is a prior art and is not described in detail here;

[0035] The first baffle plate 102 is provided with an air inlet hole 2, the diameter of which is not limited here and is determined according to the size of the actual nasal washer, and a sealing plate 3 is provided at the air inlet hole 2 through a displacement structure 5 and is located on the inner surface of the first baffle plate 102, and the sealing plate 3 is in sliding contact with the inner surface of the first baffle plate 102;

[0036] A switch pressing plate 4 is provided at the upper end of the valve body 1, and the upper surface of the switch pressing plate 4 is an arc-shaped surface, that is, the left and right ends are higher than the middle position, and the switch pressing plate 4 is connected to the displacement structure 5. The switch pressing plate 4 is used to control the sealing plate 3 to open or seal the air inlet 2, that is, by pressing the switch pressing plate 4 to the left and right, the switch pressing plate 4 drives the displacement structure 5 to move, and then drives the sealing plate 3 to move, so that it completely blocks the air inlet 2 in a sealed state or completely deviates from the air inlet 2, and the air inlet 2 is fully opened to achieve the purpose of air intake.

[0037] like Figure 2-4 , Figure 7 , Figure 8 As shown, in this embodiment, as a preference, the displacement structure 5 includes a first rotating shaft 501, and the front and rear ends of the first rotating shaft 501 are respectively arranged at the upper ends of the inner surfaces of the first baffle 102 and the second baffle 103 through bearings, that is, the first rotating shaft 501 can rotate;

[0038] The first rotating shaft 501 is provided with a rotating rod 502, which is located in the middle between the first baffle 102 and the second baffle 103. The rotating rod 502 is fixedly connected to the first rotating shaft 501 and cannot rotate relative to each other. A movable rod 503 is provided on the front side of the rotating rod 502, that is, there is a certain distance between the movable rod 503 and the rotating rod 502. A sliding block 504 is provided at the lower end of the movable rod 503. The vertical section of the sliding block 504 is an isosceles trapezoid. The lower end of the sliding block 504 is provided with a semicircular sliding end 505. The sliding end 505 is semicircular, which is convenient for sliding from one side of the inside of the valve body 1 to the other side to reduce resistance.

[0039] The movable rod 503 is provided with a slide groove 506 which completely penetrates the movable rod 503 in the front-to-back direction, and a second rotating shaft 507 is provided in the slide groove 506, one end of the second rotating shaft 507 is provided at the lower end of the front side surface of the rotating rod 502, and the other end of the second rotating shaft 507 is provided at the center position of the rear side surface of the sealing plate 3;

[0040] The movable rod 503 is provided with a compression spring 508 and is located between the sliding end 505 and the second rotating shaft 507;

[0041] The first rotating shaft 501 is provided with a connecting block 6, which is fixedly connected to the first rotating shaft 501 and cannot rotate relative to each other. The connecting block 6 is generally an isosceles triangle-shaped connecting block 6, and the upper end of the connecting block 6 is connected to the switch pressing plate 4, that is, the end where the bottom edge is located is connected to the lower surface of the switch pressing plate 4. In the initial state, the right end of the switch pressing plate 4 is in a low position, that is, the highest point of the right end of the switch pressing plate 4 is flush with the upper end surface of the U-shaped plate 101, the sliding end 505 is located at the intersection of the right side wall and the bottom wall, and the second rotating shaft 507 is located in the slide groove 506. At the upper end of the switch pressing plate 4, the sealing plate 3 completely seals the air inlet 2, and the angle between the movable rod 503 and the rotating rod 502 on the projection plane is greater than 90 degrees. When air intake is needed, it is only necessary to press the left end of the switch pressing plate 4, and the left end of the switch pressing plate 4 drives the first rotating shaft 501 to rotate counterclockwise, thereby driving the rotating rod 502 to rotate counterclockwise. The lower end of the rotating rod 502 gradually moves downward during the rotation process, and the second rotating shaft 507 also moves downward along the slide groove 506 to squeeze the compression spring 508 to shorten it, and the sealing plate 3 gradually deviates from the air inlet 2. At the same time, the upper end of the movable rod 503 rotates clockwise under the action of the inner. When the rotating rod 502 and the movable rod 503 are in line, the angle between the movable rod 503 and the rotating rod 502 on the projection plane is 180 degrees, and the critical point is reached. At this time, the compression spring 508 is in the maximum compression state, and the right end face of the sliding block 504 is completely in contact with the inner side of the right wall of the U-shaped plate 101. Continue to press the left end of the switch pressing plate 4, and an angle is formed between the rotating rod 502 and the movable rod 503. At this time, the compression spring 508 recovers its deformation, squeezing the sliding block 504. Under the action of the sliding end 505, it slides along the inner surface of the bottom wall of the U-shaped plate 101 until the sliding end 505 is located The position where the left side wall intersects with the bottom wall is stuck, and the sealing plate 3 is now completely away from the air inlet 2, and the outside air enters the valve body 1 through the air at the upper end of the valve body 1, and enters the bottle body of the nasal wash device through the air inlet 2; in addition, when the rotating rod 502 and the movable rod 503 are in line and exceed the critical point, the compression spring 508 quickly recovers its deformation, so that the sliding end 505 quickly slides from one side of the U-shaped plate 101 to the other side, and hits the left side wall or the right side wall of the U-shaped plate 101 to make a sound, so that the user can intuitively feedback the opening or closing state of the air inlet 2 through the sound.

[0042] Figure 2 , Figure 3 , Figure 7 , Figure 8 As shown, in this embodiment, in order to ensure that the sliding end 505 slides more smoothly from one side of the sliding U-shaped plate 101 to the other side, the inner surface of the bottom wall of the U-shaped plate 101 is a concave arc surface;

[0043] The inner side of the intersection of the left side wall and the bottom wall of the U-shaped plate 101 is an arc-shaped surface, and the arc is the same as the arc of the sliding end 505;

[0044] The inner side of the intersection of the right side wall and the bottom wall of the U-shaped plate 101 is an arc-shaped surface, and the curvature is the same as the curvature of the sliding end 505. The arc-shaped surfaces at three positions can make the sliding end 505 slide more smoothly to avoid getting stuck or sliding smoothly.

[0045] Figure 2 , Figure 3 , Figure 7 , Figure 8 As shown, in this embodiment, in order to prevent the rotating rod 502 from over-rotating when the compression spring 508 recovers its deformation, the inner surface of the left side wall of the U-shaped plate 101 is provided with a first limit block 7, and the inner surface of the right side wall of the U-shaped plate 101 is provided with a second limit block 8 and is symmetrical with the first limit block 7; in the initial state, the lower end of the rotating rod 502 abuts against the second limit block 8 and the compression spring 508 is in a compressed state, at which time the highest point of the right end of the switch pressing plate 4 is aligned with the U-shaped plate 101. The upper end surfaces are flush. When the left end of the switch pressing plate 4 is pressed so that the highest point of the left end of the switch pressing plate 4 is flush with the upper end surface of the U-shaped plate 101, the lower end of the rotating rod 502 is against the first limit block 7 and the compression spring 508 is in a compressed state. Since the compression spring 508 is in a compressed state when the air inlet 2 is opened or closed, the rotating rod 502 receives a certain force and presses against the limit block on the corresponding side, so that the switch pressing plate 4 is in a relatively stable state and will not shake.

[0046] In this embodiment, in order to further improve the sealing performance of the sealing plate 3, a sealing gasket is provided on the front surface of the sealing plate 3, that is, a sealing gasket is provided on the side of the sealing plate 3 that contacts the first baffle 102, and the gap between the sealing plate 3 and the edge of the air inlet 2 is further sealed by the sealing gasket, thereby improving the sealing performance of the sealing plate 3.

[0047] In this embodiment, preferably, the U-shaped plate 101, the first baffle plate 102, and the second baffle plate 103 are all made of medical-grade plastic material.

[0048] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An air inlet valve for a nasal wash device, comprising a valve body (1), characterized in that: The valve body (1) comprises a U-shaped plate (101), a first baffle plate (102), and a second baffle plate (103); the first baffle plate (102) and the second baffle plate (103) are respectively arranged at the front and rear ends of the U-shaped plate (101) and are integrally formed; An air inlet hole (2) is provided on the first baffle plate (102); a sealing plate (3) is provided at the air inlet hole (2) via a displacement structure (5) and is located on the inner surface of the first baffle plate (102); A switch pressing plate (4) is provided at the upper end of the valve body (1), the switch pressing plate (4) is connected to the displacement structure (5), and the switch pressing plate (4) is used to control the sealing plate (3) to open or seal the air inlet hole (2).

2. The air inlet valve for a nasal wash device according to claim 1, characterized in that: The displacement structure (5) comprises a first rotating shaft (501), and the front and rear ends of the first rotating shaft (501) are respectively arranged on the upper ends of the inner surfaces of the first baffle plate (102) and the second baffle plate (103) through bearings; The first rotating shaft (501) is sleeved with a rotating rod (502), a movable rod (503) is arranged on the front side of the rotating rod (502), a sliding block (504) is arranged at the lower end of the movable rod (503), the vertical cross section of the sliding block (504) is an isosceles trapezoid, and a semicircular sliding end (505) is arranged at the lower end of the sliding block (504); The movable rod (503) is provided with a slide groove (506) which completely penetrates the movable rod (503) in the front-to-back direction, and a second rotating shaft (507) is provided in the slide groove (506), one end of the second rotating shaft (507) is arranged at the lower end of the front side surface of the rotating rod (502), and the other end of the second rotating shaft (507) is arranged at the center position of the rear side surface of the sealing plate (3); The movable rod (503) is sleeved with a compression spring (508) and is located between the sliding end (505) and the second rotating shaft (507); The first rotating shaft (501) is sleeved with a connecting block (6), the upper end of the connecting block (6) is connected to the switch pressing plate (4), in the initial state, the right end of the switch pressing plate (4) is in a low position, the sliding end (505) is located at the intersection of the right side wall and the bottom wall, the second rotating shaft (507) is located at the upper end of the slide groove (506), and the sealing plate (3) completely seals the air inlet (2).

3. The air inlet valve for a nasal wash device according to claim 2, characterized in that: The inner surface of the bottom wall of the U-shaped plate (101) is an inwardly concave arc surface; The inner side of the intersection of the left side wall and the bottom wall of the U-shaped plate (101) is an arc-shaped surface, and the arc is the same as the arc of the sliding end (505); The inner side of the intersection of the right side wall and the bottom wall of the U-shaped plate (101) is an arc-shaped surface, and the arc is the same as the arc of the sliding end (505).

4. The air inlet valve for a nasal wash device according to claim 3, characterized in that: A first limit block (7) is provided on the inner surface of the left side wall of the U-shaped plate (101), and a second limit block (8) is provided on the inner surface of the right side wall of the U-shaped plate (101) and is symmetrical with the first limit block (7); in the initial state, the lower end of the rotating rod (502) abuts against the second limit block (8) and the compression spring (508) is in a compressed state.

5. The air inlet valve for a nasal wash device according to claim 4, characterized in that: A layer of sealing gasket is provided on the front surface of the sealing plate (3).

6. The air inlet valve for a nasal wash device according to claim 5, characterized in that: The U-shaped plate (101), the first baffle plate (102), and the second baffle plate (103) are all made of medical-grade plastic material.

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