CN115300728B - Sprayer with leak-proof piston - Google Patents
Sprayer with leak-proof piston Download PDFInfo
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- CN115300728B CN115300728B CN202210949759.9A CN202210949759A CN115300728B CN 115300728 B CN115300728 B CN 115300728B CN 202210949759 A CN202210949759 A CN 202210949759A CN 115300728 B CN115300728 B CN 115300728B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
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Abstract
The present application provides a sprayer with a leak-proof piston. The sprayer comprises: the valve body comprises a liquid inlet, a liquid outlet and a sliding port, wherein the liquid inlet is communicated with the liquid outlet to form a liquid channel, liquid can leave from the liquid outlet through the liquid channel, and the sliding port is communicated with the liquid outlet to form a piston sliding channel; the leakage-proof piston is arranged in the piston sliding channel in a sliding way; and an atomizing device connected to the liquid outlet, the atomizing device including a microporous region through which liquid entering the microporous region from the liquid outlet can be atomized and discharged out of the atomizer, the leak-proof piston being controllably brought closer to or farther from the microporous region such that the leak-proof piston can restrict liquid from entering the microporous region or the leak-proof piston can release its restriction of liquid from entering the microporous region. The leakage-proof piston is utilized to controllably block the micropore area in the atomizing device, so that the possible liquid leakage condition of the micropore area when the sprayer is inverted or overturned can be prevented.
Description
Technical Field
The present application relates to the technical field of nebulizers, in particular oral nebulizers with a leak-proof piston or nebulizers for other applications.
Background
The sprayer comprises an oral sprayer, which is an auxiliary tool for oral care, for example, the oral refreshing liquid or oral therapeutic liquid can be atomized into small water drops by utilizing the ultrasonic atomization principle, and then the oral refreshing liquid or oral therapeutic liquid can be used for refreshing the breath and treating oral diseases in an outward spraying mode. Currently, many portable oral nebulizers are available on the market. The working principle is approximately as follows: the liquid in the liquid storage bin reaches the atomizing device through the liquid flow channel, and the atomizing device atomizes and sprays the liquid from the micropores of the liquid storage bin.
However, when the oral sprayer is inverted or tipped over, liquid may leak somewhat from the liquid passage gap and the micropores of the atomizing device, resulting in poor use experience.
Disclosure of Invention
The present application provides a sprayer with a leak-proof piston.
The sprayer comprises:
the valve body comprises a liquid inlet, a liquid outlet and a sliding port, wherein the liquid inlet is communicated with the liquid outlet to form a liquid channel, liquid can leave from the liquid outlet through the liquid channel, and the sliding port is communicated with the liquid outlet to form a piston sliding channel;
the leakage-proof piston is arranged in the piston sliding channel in a sliding manner; and
an atomizing device connected to the liquid outlet, the atomizing device comprising a microporous region through which the liquid entering the microporous region from the liquid outlet can be atomized and discharged out of the atomizer,
the leak-proof piston can be controllably moved closer to or farther from the microporous region such that the leak-proof piston can restrict the liquid from entering the microporous region or the leak-proof piston can relieve its restriction on the liquid from entering the microporous region.
In at least one embodiment, the sprayer comprises:
an inner housing comprising a spray opening, the microporous region facing the spray opening; and
a sliding cover shell which is connected with the inner shell in a sliding way, the sliding cover shell can cover or expose the spraying opening in a sliding way, the sliding cover shell comprises pressing ribs,
when the sliding cover shell slides to cover the spraying opening, the pressing ribs squeeze one end of the leakage-proof piston, so that the leakage-proof piston moves and approaches the micropore area to limit the liquid to enter the micropore area.
In at least one embodiment, the leakage-proof piston comprises:
a piston body provided in the piston sliding passage and movable in an axial direction of the piston body;
the elastic piece is arranged in the piston sliding channel and is abutted against the piston body, the compression deformation direction of the elastic piece is the axial direction of the piston body,
when the spray opening is exposed after the sliding cover shell slides, the pressing ribs are far away from one end of the piston body, the piston body is far away from the micropore area under the action of the elastic force of the elastic piece, and the limit of the leakage-proof piston on the liquid entering the micropore area is relieved.
In at least one embodiment, the piston body comprises:
the boosting piece comprises a raised inclined plane, and the pressing rib enables the boosting piece to slide along the axial direction of the piston body and close to the atomizing device by pressing the inclined plane; and
a seal comprising a seal blocking end, the seal blocking end having an area greater than the area of the microporous region,
the booster is connected to the seal.
In at least one embodiment, a portion of the seal away from the atomizing device abuts against the piston sliding channel, and a portion of the seal adjacent to the atomizing device has a smaller diameter than the piston sliding channel, so that the liquid can flow into the piston sliding channel and can be prevented from flowing out of the sliding port of the piston sliding channel.
In at least one embodiment, the end of the microporous region near the leak-proof piston is an atomizer liquid input end,
when the pressing ribs squeeze one end of the leakage-proof piston and enable the leakage-proof piston to be close to the micropore area so as to limit liquid to enter the micropore area, the minimum distance X between the other end of the leakage-proof piston, which is close to the atomizing device, and the liquid input end of the atomizing device is met, and X is more than or equal to 0 and less than or equal to 1mm.
In at least one embodiment, a sliding groove is arranged at the sliding opening of the valve body along the axial direction of the leakage-proof piston,
the leakage preventing piston includes a sliding bar that slides in the sliding groove to prevent the leakage preventing piston from rotating and to limit a minimum distance between the leakage preventing piston and the micro-hole area.
In at least one embodiment, the sprayer further comprises a reservoir for storing the liquid,
the liquid outlet of the liquid storage bin is detachably connected with the liquid inlet of the valve body, or the liquid storage bin and the valve body are integrally formed.
In at least one embodiment, the channel of the liquid inlet of the valve body is provided with a spike,
the liquid storage bin comprises a liquid outlet guide channel, a sealing ring is arranged on the outer wall of the liquid outlet guide channel, the end part of the liquid outlet guide channel is a liquid outlet of the liquid storage bin, the liquid outlet of the liquid storage bin is covered with a leakage-proof glue cover,
when the liquid outlet guide channel is inserted into the channel where the liquid inlet of the valve body is located, the sealing ring is abutted against the inner wall of the channel where the liquid inlet is located, and the puncture can puncture the leakage-proof glue cover.
In at least one embodiment, the end of the reservoir remote from the valve body is provided with a gas permeable membrane.
The utility model provides a change the structure of the liquid runner of traditional atomizer, utilize leak protection piston controllably to block up the micropore region in the atomizing device, can prevent the atomizer to invert or the regional possible weeping condition of department of micropore when overturning.
Drawings
Fig. 1 shows an exploded view of a nebulizer with a leak-proof piston according to an embodiment of the application.
Fig. 2 shows a schematic structural view of a nebulizer with a leak-proof piston according to an embodiment of the application.
Fig. 3 shows a bottom view of the slider housing of the sprayer with the leak-proof piston of fig. 1.
Fig. 4 shows an exploded view of a portion of a body assembly of a sprayer with a leak-proof piston according to an embodiment of the application.
Fig. 5 shows a cross-sectional view of a portion of a body assembly of a sprayer with a leak-proof piston in accordance with an embodiment of the application.
Fig. 6 illustrates a schematic of liquid flow in a portion of a body assembly of a sprayer with a leak-proof piston in accordance with an embodiment of the application.
Fig. 7 shows a cross-sectional view of a nebulizer with a leak-proof piston according to an embodiment of the application in a state in which the nebulizer orifice is shielded.
Fig. 8 shows a cross-sectional view of a nebulizer with a leak-proof piston according to an embodiment of the application in a state in which a nebulizer orifice is exposed.
Description of the reference numerals
1 a housing assembly;
10 an inner shell; 101 a first inner housing; 102 a second inner housing; 103 sliding grooves; 1031 sliding tray baffles; 104 spray opening;
11 a housing; 110 a slip cover shell; 111 bottom cover shell; 112 pressing the ribs; 113 sliding ribs; 1131 sliding rib baffles;
2 a body assembly;
201 a liquid channel; 202 piston slide channel;
a valve body 21; 210 liquid inlet; 2100 spines; 211 liquid outlet; 212 sliding the port; 213 sliding grooves;
22 leak-proof pistons; 220 boosting parts; 2201 pressing part; 2202 connection portions; 2203 sliding bars; 221 seals; 2210 seal fixed end; 2211 seal block end;
222 an elastic member;
23 liquid storage bins; 231 leakage-proof glue cover; 232 breathable films; 233 sealing rings;
24 atomizing means; 241 micropore region;
3 electronic device
Detailed Description
Exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are merely illustrative of how one skilled in the art may practice the present application and are not intended to be exhaustive of all of the possible ways of practicing the present application nor to limit the scope of the present application.
The present application provides a nebulizer (hereinafter, sometimes simply referred to as a "nebulizer") having a leak-proof piston. Referring to fig. 1 and 2, the sprayer may include a housing assembly 1 and a body assembly 2. In one embodiment of the present application, the sprayer may be an electronic sprayer, which includes an electronic device 3, and the electronic device 3 may include a control switch, a battery, etc., where the control switch may be electrically connected to the atomizing device 24 (described later), and the operating state of the sprayer is controlled by the control switch. Of course, the sprayer may also be of the push type, and in this embodiment no electronics may be required.
The present application describes the structural composition of an oral sprayer, as an example. Of course, the sprayer can be used for spraying other parts, and the spraying position is not limited to the oral cavity.
< housing Assembly 1>
Referring to fig. 1 and 2, the housing assembly 1 may include an inner housing 10 and an outer housing 11.
Referring to fig. 1, the inner case 10 may include a first inner case 101 and a second inner case 102, and the inner case 10 may be formed of the first inner case 101 and the second inner case 102 in butt-sealing. Illustratively, the first inner housing 101 and the second inner housing 102 may be welded using ultrasonic welding techniques, interconnected by snap-fit structures, bayonet structures, or the like. Of course, the first inner housing 101 and the second inner housing 102 may also be connected together in other ways. The inner case 10 has a mounting cavity therein in which the body assembly 2, the electronic device 3, and the like can be mounted.
The inner housing 10 includes a sliding groove 103 for mating with the outer housing 11. The slide groove 103 may be provided with a slide groove shutter 1031 protruding from the surface of the slide groove 103. The first inner case 101 may be provided with a spray opening 104, and the mist may be sprayed from the spray opening 104.
The outer shell 11 is disposed outside the inner shell 10, and at least a portion of the outer shell 11 is slidable relative to the inner shell 10. In one embodiment of the present application, the housing 11 may include a slide cover housing 110 and a bottom cover housing 111. The bottom cover case 111 may be fixed to the inner case 10, and the slide cover case 110 may slide with respect to the inner case 10. The spray opening 104 may be exposed by sliding the slide cover housing 110 or the spray opening 104 may be shielded by the slide cover housing 110.
Referring to fig. 3, a pressing rib 112 and two symmetrical sliding ribs 113 may be provided at the inside of the slide cover case 110. The pressing rib 112 is used to press the booster 220 (described later). When the slide cover 110 is mounted on the outer side of the inner case 10, the sliding ribs 113 can slide in the sliding grooves 103. The sliding rib plate 1131 may be further disposed in the sliding rib 113, and when the sliding cover shell 110 moves away from the bottom cover shell 111 (e.g. the sliding cover shell 110 moves upward in fig. 1), the sliding groove plate 1031 of the first inner shell 101 can abut against the sliding rib plate 1131 of the sliding cover shell 110, so as to limit the upward movement distance of the sliding cover shell 110.
Referring to fig. 1, the inner case 10 may further have an inner case barrier 1001, and when the slide cover case 110 moves close to the bottom cover case 111 (e.g., the slide cover case 110 moves downward in fig. 1), the bottom of the slide cover case 110 can collide with the inner case barrier 1001 for limiting the downward movement distance of the slide cover case 110.
The bottom of the bottom cover case 111 may be provided with a charging interface for connecting an external power source to charge a battery in the sprayer.
< body Assembly 2>
Referring to fig. 1, the body assembly 2 may include a valve body 21, a leakage-proof piston 22, a reservoir 23, and an atomizing device 24.
Referring to fig. 4, 5, and 6, the valve body 21 may include a liquid inlet 210, a liquid outlet 211, and a sliding port 212. The liquid inlet 210 and the liquid outlet 211 are communicated to form a liquid channel 201, as shown by black arrows in fig. 6, and liquid can flow in the liquid channel 201. The slide port 212 and the liquid outlet 211 are communicated to form a piston slide passage 202, and the leak-proof piston 22 is slidably provided in the piston slide passage 202. It will be appreciated that some of the structures in the fluid channel 201 belong to the piston slide channel 202. Referring to fig. 4, a sliding groove 213 (described later) may be further formed at the sliding port 212 along the axial direction of the piston sliding passage 202.
The leakage preventing piston 22 may include a piston body and an elastic member 222. The piston body may in turn include a booster 220 and a seal 221.
In one embodiment of the present application, the booster 220 is connected to the seal 221, and the seal 221 is capable of interfering or nearly interfering (both of which are less than 1mm apart, and nearly interfering hereafter both refer to less than 1mm apart) with the microporous region 241 of the atomizer device (described hereafter) after movement in the piston slide channel 202.
The elastic member 222 may be disposed in the piston sliding channel 202, the elastic member 222 abuts against the piston body, and the compression deformation direction of the elastic member 222 is the axial direction of the piston body. In one embodiment of the present application, the elastic member 222 may be a compression spring, where one end of the elastic member 222 abuts against the booster 220, and the other end abuts against the axial end surface of the inwardly protruding step of the piston sliding channel 202. When the booster 220 is subjected to a pushing force, the elastic member 222 is in a compressed state.
That is, after the booster 220 receives a pushing force (pushing from left to right) in a direction approaching the atomizer 24 in its axial direction (left to right in fig. 6), the seal 221 can move and collide or nearly collide with the micropore region 241 of the atomizer device (state as in fig. 5); after the thrust of the booster 220 in the direction approaching the atomizer 24 is removed, the sealing member 221 is separated from the micropore area 241 of the atomizer by the elastic member 222 (the state is shown in fig. 6). By controlling the thrust force exerted by the booster 220, the distance between the microporous region 241 of the atomizer device and the seal 221 can be controlled.
The booster 220 may include a pressing portion 2201 and a connecting portion 2202. The pressing portion 2201 may be a convex inclined surface, which is used as a force-bearing end of the booster 220. It can be understood that the inclined plane of the pressing portion 2201 makes the force direction of the pressing rib 112 of the slide cover shell 110 not limited to horizontal force (horizontal force in fig. 7 and 8), the pressing rib 112 can correspond to the position of the pressing portion 2201, and when the slide cover shell 110 slides down, the pressing rib 112 can press the pressing portion 2201, so as to press the boosting piece 220 to move along the axial direction of the boosting piece 220, and drive the sealing piece 221 to abut or almost abut against the micropore area 241 of the atomizing device; when the slide cover 110 slides upward, the force applied to the pressing portion 2201 is removed, and the sealing member 221 is away from the micropore area 241 of the atomizing device.
The connection portion 2202 may have a disk-shaped protrusion. Accordingly, the seal 221 may include a seal fixing end 2210 having a disk-shaped recess, and the connection portion 2202 of the booster 220 and the seal fixing end 2210 may be tightly fixed by a male-female fit, and not easily fall off.
The booster 220 also has a sliding bar 2203 on both sides, and the sliding bar 2203 can slide in the sliding groove 213 of the valve body 21. The cooperation of the slider 2203 and the slider slot 213 may serve functions including: firstly, the guiding function is performed to prevent the boosting piece 220 from rotating; secondly, the seal 221 is prevented from excessively extruding the atomizing device 24, and the sliding bar 2203 is contacted with the bottom of the sliding groove 213, so that the booster 220 can be prevented from being excessively extruded, and the seal 221 is prevented from excessively extruding the atomizing device 24.
The outer wall of the fixed end 2210 of the sealing element tightly contacts with the inner wall of the sliding channel 202 of the piston and can slide, so that the leakage of the liquid from the sliding channel 202 of the piston to the sliding opening 212 can be effectively avoided.
The seal 221 further includes a seal blocking end 2211, which may be disc-shaped, for blocking the microporous region 241 of the atomizer device. Referring to fig. 6, in one embodiment of the present application, the seal-blocking end 2211 may have a convex structure protruding toward the microporous region 241. As can be readily seen from the cross-sectional view shown in fig. 6, when the protruding structure moves toward the micro-hole region 241, the center position of the protruding structure may first collide with the micro-hole region 241; the convex structure continues to move towards the micropore area 241, the convex structure is gradually flattened on the micropore area 241, and liquid between the convex structure and the micropore area 241 is slowly discharged from the center of the convex structure to the radial outside. The sealing member blocking end 2211 with the convex structure can drain the liquid accumulated in the area, and then the liquid is blocked, so that the condition that the sealing member blocking end 2211 directly presses the liquid into the micropore area 241 to leak the liquid is avoided.
The sealing member 221 may be integrally formed, and may be made of silica gel, rubber or other materials with good waterproof effect. Of course, the present application is not limited to the particular shape of the seal-blocking end 2211, which may be adaptively changed according to the particular shape of the atomizing device 24 in order to better block the microporous region 241.
Illustratively, the diameter of the seal-blocking end 2211 may be smaller than the diameter of the piston sliding channel 202, and the diameter of the seal-blocking end 2211 may be greater than or equal to the diameter of the microporous region 241 of the atomizing device. Namely, the micropore area 241 of the atomizing device can be completely blocked, so that liquid is prevented from flowing out of micropores of the micropore area 241 of the atomizing device; there is a certain space for liquid to flow between the sealing member 221 and the piston sliding channel 202, and the liquid can flow into the vicinity of the micro-porous region 241 of the atomizing device (piston sliding channel 202), and at the first time when the sealing member blocking end 2211 leaves the micro-porous region 241 of the atomizing device, the liquid can enter the micro-porous region 241 of the atomizing device.
The atomizer liquid inlet 240 and atomizer liquid outlet are on opposite sides of the atomizer microporous region 241.
When the slide cover 110 is not opened and the pressing ribs 112 press the booster 220, the spacing between the sealing end 2211 of the sealing element and the input end 240 of the atomizing device is preferably 0-1mm, i.e. the sealing end is in contact with or almost in contact with the input end 240 of the atomizing device, so that the leakage of the liquid from the micropores of the atomizing device 24 can be prevented. That is, the minimum distance X between the sealing member blocking end 2211 and the atomizing device input end 240 is satisfied, and 0.ltoreq.X.ltoreq.1 mm.
When the distance between the sealing end 2211 and the liquid input end 240 of the atomizing device is smaller than 0mm (the sealing end 2211 is destructively extended into the liquid input end 240 of the atomizing device, i.e. excessively pressed), the atomizing device 24 is deformed, which may result in that the atomizing device 24 cannot perform atomization or the atomization effect is poor. When the distance between the sealing end 2211 and the liquid input end 240 of the atomizer is greater than 1mm, the sealing end 2211 cannot isolate the liquid from contacting the liquid input end 240 of the atomizer, and the liquid may leak from the micropores of the liquid input end 240 of the atomizer.
Of course, the sealing element 221 and the booster 220 may be integrated (i.e. the piston body is integrated), the material of the piston body may be a hard material, and a film of silica gel, rubber or other materials with good waterproof effect may be sleeved, impregnated, sprayed and adhered on the other end (referring to fig. 5, the lower end) of the piston body to play a sealing role.
Referring to fig. 7 and 8, the liquid storage bin 23 is configured to hold liquid, and a liquid outlet of the liquid storage bin 23 may be connected to the liquid inlet 210 of the valve body 21.
In one embodiment of the present application, the reservoir 23 includes a liquid outlet guide channel. The outer wall of the liquid outlet guide channel can be provided with a sealing ring 233, the sealing ring 233 is a silica gel ferrule, and the sealing ring 233 is abutted against the channel in the liquid inlet 210 of the valve body 21, so that the liquid can be prevented from flowing out carelessly when the liquid storage bin is replaced, and the liquid can be prevented from leaking from the outlet of the liquid storage bin to the periphery in the use process.
Referring to fig. 1, the liquid outlet of the liquid storage bin 23 may be wrapped with a leakage-proof glue cover 231. A cross-shaped groove (not shown in the figure) can be arranged in the anti-leakage glue cover 231, a spike 2100 can be arranged in a channel where the liquid inlet 210 of the valve body 21 is located, when the liquid storage bin 23 is mounted on the shell assembly 1, the spike 2100 at the liquid inlet 210 of the valve body can puncture the anti-leakage glue cover 231 (for example, the cross-shaped groove) so that liquid flows out from the liquid outlet of the liquid storage bin 23.
The top of the liquid storage bin 23 (e.g. the upper end of fig. 7 and 8) can be provided with an opening, and the opening is provided with a ventilation membrane 232 in a sealing manner, so that when the liquid in the liquid storage bin 23 is less, the ventilation membrane is beneficial to balancing the pressure intensity inside and outside the liquid storage bin, and the liquid is ensured to flow out smoothly. The recommended posture of the sprayer can be as shown in fig. 7 and 8, and the top is the upper part. Of course, the air-permeable membrane 232 may be provided at an end of the reservoir 23 remote from the valve body 21 in the posture of use of the sprayer, which is not limited in the present application.
The reservoir 23 may store various liquids that are beneficial to the oral cavity, such as breath freshening liquids, oral disease treatment liquids, and the like. The reservoir 23 may also be of integral design with the valve body 21.
The atomizing means 24 may include a microporous atomizing sheet or other type of atomizing sheet. The central region of the atomizing device 24 is a micropore region 241 of the atomizing sheet, one end (the end close to the leakage-proof piston 22) of the micropore region 241 is an atomizing device liquid input end 240, and the other end (the end far away from the leakage-proof piston 22) of the micropore region 241 is an atomizing device liquid output end, wherein the atomizing device liquid output end faces the spraying opening 104. After being electrified, the atomizing sheet can convert the liquid in the micropores into mist. The liquid can be atomized by passing through the micropores, i.e., from the atomizer liquid inlet 240 to the atomizer liquid outlet.
Illustratively, the operating logic of the sprayer provided herein is as follows.
Referring to fig. 7, when the sprayer housing 11 is not slid open, the spraying opening 104 is blocked, and at this time, the pressing rib 112 on the slide cover housing 110 abuts against the pressing portion 2201 of the booster 220, and the liquid flows out from the outlet of the liquid storage bin 23, flows into the valve body liquid inlet 210, and then flows from the liquid flow channel 201 to the atomizing device 24. Because the sealing end 2211 of the sealing member is in a collision or almost collision state with the liquid input end 240 of the atomizing device, and the outer wall of the fixed end 2210 of the sealing member is closely in collision with the inner wall of the sliding channel 202 of the piston, the liquid is blocked in the liquid flow channel 201 and cannot flow to other positions, and meanwhile, the liquid can be prevented from entering the micropore area 241 of the atomizing device, so that the liquid is prevented from leaking from the micropores of the atomizing device 24.
Referring to fig. 8, when the sprayer housing 11 is slid and opened, the spraying port 104 is exposed, the pressing rib 112 on the slide cover housing 110 does not collide with the pressing portion 2201 of the booster, the liquid flows out from the outlet of the liquid storage bin 23, flows into the liquid inlet 210 of the valve body 21, and then flows from the liquid flow channel 201 to the spraying device 24, and because the distance between the sealing end 2211 of the sealing member and the micropore area 241 of the spraying device 24 is larger than 1mm (for example), the liquid contacts with the liquid input end 240 of the spraying device, when a user presses a "start" button (not shown in the figure) on the housing, the spraying device 24 can be controlled to start working, and the liquid is sprayed out from the spraying port 104 after being atomized. Of course, it is also possible to arrange the atomizer so that the atomizing means 24 automatically starts to operate when the slide cover 110 is opened or automatically starts to operate within a predetermined time.
The embodiments disclosed above are only preferred examples of the present application, and the scope of the claims of the present application should not be limited thereto, so that the scope of the present application is covered by the claims of the present application.
Claims (7)
1. A sprayer having a leak-proof piston, the sprayer comprising:
the valve body (21) comprises a liquid inlet (210), a liquid outlet (211) and a sliding port (212), wherein the liquid inlet (210) is communicated with the liquid outlet (211) to form a liquid channel (201), liquid can leave from the liquid outlet (211) through the liquid channel (201), and the sliding port (212) is communicated with the liquid outlet (211) to form a piston sliding channel (202);
a leakage-proof piston (22), wherein the leakage-proof piston (22) is arranged on the piston sliding channel (202) in a sliding way; and
an atomizing device (24) connected to the liquid outlet (211), the atomizing device (24) comprising a microporous region (241), the liquid entering the microporous region (241) from the liquid outlet (211) being capable of being atomized via the microporous region (241) and being discharged out of the atomizer,
the leakage preventing piston (22) can be controlled to be close to or far away from the micropore area (241) so that the leakage preventing piston (22) can limit the liquid to enter the micropore area (241) or the leakage preventing piston (22) can release the limit of the liquid to enter the micropore area (241),
the sprayer includes:
an inner shell (10) comprising spray openings (104), the microporous region (241) being oriented towards the spray openings (104); and
a sliding cover shell (110) which is slidably connected with the inner shell (10), wherein the sliding cover shell (110) can slidably cover or expose the spraying opening (104), the sliding cover shell (110) comprises pressing ribs (112),
when the sliding cover shell (110) slides to cover the spraying opening (104), the pressing ribs (112) press one end of the leakage-proof piston (22) to enable the leakage-proof piston (22) to move and approach the micropore area (241) so as to limit the liquid to enter the micropore area (241),
the leakage-proof piston (22) comprises:
a piston body provided in the piston slide passage (202) and movable in an axial direction of the piston body;
an elastic member (222), wherein the elastic member (222) is arranged in the piston sliding channel (202), the elastic member (222) is abutted against the piston body, the compression deformation direction of the elastic member (222) is the axial direction of the piston body,
when the sliding cover shell (110) slides and then the spraying opening (104) is exposed, the pressing rib (112) is far away from one end of the piston body, the piston body is far away from the micropore area (241) under the elastic force of the elastic piece (222), the limit of the leakage-proof piston (22) on the liquid entering the micropore area (241) is relieved,
the piston body includes:
a booster (220) including a raised ramp, the pressing rib (112) sliding the booster (220) along the axial direction of the piston body toward the atomizing device (24) by pressing the ramp; and
a seal (221) comprising a seal-blocking end (2211), the seal-blocking end (2211) having an area larger than the area of the microporous region (241),
the booster (220) is connected to the seal (221).
2. The nebulizer with a leak-proof piston according to claim 1, characterized in that a part of the structure of the seal (221) remote from the nebulizing device (24) abuts against the piston slide channel (202), the diameter of the part of the structure of the seal (221) close to the nebulizing device (24) being smaller than the diameter of the piston slide channel (202), so that the liquid can flow into the piston slide channel (202) and can be prevented from flowing out of the slide opening (212) of the piston slide channel (202).
3. The sprayer with a leak-proof piston of claim 1, wherein the end of the microporous region (241) adjacent the leak-proof piston (22) is an atomizer liquid input (240),
when the pressing ribs (112) press one end of the leakage-proof piston (22) and enable the leakage-proof piston (22) to be close to the micropore area (241) so as to limit the liquid to enter the micropore area (241), the minimum distance X between the other end, close to the atomizing device (24), of the leakage-proof piston (22) and the liquid input end (240) of the atomizing device is met, and X is more than or equal to 0 and less than or equal to 1mm.
4. The sprayer with the leakage-proof piston according to claim 1, wherein a sliding groove (213) is formed at the sliding port (212) of the valve body (21) along the axial direction of the leakage-proof piston (22),
the leakage preventing piston (22) comprises a sliding bar (2203), and the sliding bar (2203) slides in the sliding groove (213) to prevent the leakage preventing piston (22) from rotating and limit the minimum distance between the leakage preventing piston (22) and the micropore area (241).
5. The sprayer with a leakage-proof piston according to claim 1, further comprising a reservoir (23) for storing the liquid,
the liquid outlet of the liquid storage bin (23) is detachably connected with the liquid inlet (210) of the valve body (21), or the liquid storage bin (23) and the valve body (21) are integrally formed.
6. The sprayer with a leakage-proof piston according to claim 5, wherein a spike (2100) is provided in the passage of the valve body (21) where the liquid inlet (210) is located,
the liquid storage bin (23) comprises a liquid outlet guide channel, a sealing ring (233) is arranged on the outer wall of the liquid outlet guide channel, the end part of the liquid outlet guide channel is a liquid outlet of the liquid storage bin (23), the liquid outlet of the liquid storage bin (23) is covered with a leakage-proof glue cover (231),
when the liquid outlet guide channel is inserted into the channel where the liquid inlet (210) of the valve body (21) is located, the sealing ring (233) abuts against the inner wall of the channel where the liquid inlet (210) is located, and the spike (2100) can puncture the leakage-proof glue cover (231).
7. The sprayer with a leakage-proof piston according to claim 5, wherein the end of the reservoir (23) remote from the valve body (21) is provided with a gas-permeable membrane (232).
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| CN115300728A (en) | 2022-11-08 |
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