Sprayer

Abstract

Provided is a sprayer (10), which comprises: a housing assembly (100), the housing assembly (100) comprising a fixed housing (110), the fixed housing (110) comprising an indication portion (114) and a plurality of guide teeth (1111) arranged in the circumferential direction, and a guide groove (1112) being formed between every two adjacent guide teeth (1111); a top supporting disc (300), which is slidably connected to the fixed housing (110) in the axial direction of the housing assembly (100); a counting disc (400), comprising a plurality of rotating teeth (410) arranged in the circumferential direction, an accommodating groove (414) being formed between every two adjacent rotating teeth (410), the rotating teeth (410) matching with the guide grooves (1112), the guide teeth (1111) matching with the accommodating grooves (414), and the counting disc (400) being provided with scale identifiers (430) arranged in the circumferential direction; and a driving assembly (200), which is movably connected to the fixed housing (110) and capable of abutting against an edge of the top supporting disc (300) in the radial direction to periodically drive the top supporting disc (300) to slide so as to enable the counting disc (400) to rotate and enable the indication portion (114) to point to different scale identifiers (430).

Description

sprayer Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to a sprayer. Background Art

[0002] A nebulizer can be used as a medical device. A liquid reservoir bottle containing a liquid, such as a medical solution, is placed inside the nebulizer. With traditional nebulizers, as the liquid is continuously consumed by the user while being sprayed from the nebulizer, the user cannot accurately determine the remaining amount of liquid in the reservoir bottle, and thus cannot accurately determine the amount of liquid ingested.

[0003] Summary of the Invention

[0004] A technical problem solved by the present application is how to ensure that the user is accurately informed of the remaining amount and consumption of the liquid in the liquid storage bottle.

[0005] A sprayer comprising:

[0006] A housing assembly, the housing assembly comprising a fixed housing, the fixed housing comprising an indicator portion and a plurality of guide teeth arranged in a circumferential direction, wherein a guide groove is formed between two adjacent guide teeth;

[0007] a top support plate, slidably connected to the fixed shell along the axial direction of the shell assembly;

[0008] A counting disk, comprising a plurality of rotating teeth arranged along the circumferential direction, a receiving groove being formed between two adjacent rotating teeth, the rotating teeth cooperating with the guide grooves, the guide teeth cooperating with the receiving grooves, and the counting disk being provided with scale marks arranged along the circumferential direction; and

[0009] The driving assembly is movably connected to the fixed shell and can abut against the radial edge of the top support disk, thereby periodically driving the top support disk to slide so that the counting disk rotates and the indicating part points to different scale marks.

[0010] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to better describe and illustrate the embodiments and / or examples of the applications disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the accompanying drawings should not be considered to limit the scope of the disclosed applications, the presently described embodiments and / or examples, and any of the best modes currently understood for these applications.

[0012] FIG1 is a schematic diagram of the three-dimensional structure of a sprayer provided in one embodiment;

[0013] FIG2 is a schematic perspective cross-sectional view of the sprayer shown in FIG1 ;

[0014] FIG3 is a schematic diagram of the exploded structure of the sprayer shown in FIG1 ;

[0015] FIG4 is a schematic perspective cross-sectional view of the structure of FIG3 ;

[0016] FIG5 is a schematic diagram of a first partial three-dimensional cross-sectional structure of the sprayer shown in FIG1 ;

[0017] FIG6 is a schematic diagram of a second partial three-dimensional cross-sectional structure of the sprayer shown in FIG1 ;

[0018] FIG7 is a schematic diagram of a third partial three-dimensional cross-sectional structure of the sprayer shown in FIG1;

[0019] FIG8 is a schematic diagram of the three-dimensional structure of the rotating shaft in the sprayer shown in FIG1;

[0020] FIG9 is a schematic diagram of the three-dimensional structure of the top support plate in the sprayer shown in FIG1 ;

[0021] FIG10 is a schematic diagram of the three-dimensional structure of the counting disk in the sprayer shown in FIG1 ;

[0022] FIG11 is a schematic diagram of the three-dimensional structure of the counting disk shown in FIG10 from another perspective. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0025] Referring to Figures 1, 2, and 3, a sprayer 10 according to one embodiment of the present invention can be used as a medical device. A liquid storage bottle 20 containing a medical solution can be placed within the sprayer 10. During operation, the sprayer 10 atomizes the liquid solution in the liquid storage bottle 20 into a mist, which the user can inhale to inhale the liquid solution. The liquid storage bottle 20 can also hold other liquids other than medical solutions. The sprayer 10 primarily comprises a housing assembly 100, a drive assembly 200, a support plate 300, and a counter plate 400.

[0026] Referring to Figures 3, 4, and 5, in some embodiments, the housing assembly 100 is spaced apart from the liquid storage bottle 20, such that the housing assembly 100 and the liquid storage bottle 20 are not in direct contact or connection. The housing assembly 100 includes a fixed shell 110 and a top cover 120. The fixed shell 110 is generally cylindrical in shape with a relatively large axial length. For ease of description, the direction perpendicular to the axial direction of the entire sprayer 10 is generally understood as the radial direction of the sprayer 10. The fixed shell 110 is spaced apart from the liquid storage bottle 20 by a certain distance along the radial direction of the sprayer 10. The top cover 120 is disposed at an end of the fixed shell 110 and can be spaced apart from the liquid storage bottle 20 by a certain distance along the axial direction of the sprayer 10.

[0027] The fixed shell 110 includes a boss 111 and a supporting ring 112. Both the boss 111 and the supporting ring 112 are protruding from the inner wall surface of the fixed shell 110, so that the boss 111 and the supporting ring 112 protrude a certain length relative to the inner wall surface in the radial direction of the sprayer 10. The boss 111 and the supporting ring 112 are spaced apart along the axial direction of the sprayer 10. There are multiple bosses 111, and the multiple bosses 111 are arranged along the circumference of the fixed shell 110. A guide tooth 1111 is provided at the axial top of the boss 111. The guide tooth 1111 has a vertical guide surface 1111a and an inclined guide surface 1111b. One end of the vertical guide surface 1111a and the inclined guide surface 1111b are connected to each other. The axial direction of the fixed housing 110 is aligned with the axial direction of the sprayer 10. The vertical guide surface 1111a can extend along the axial direction of the sprayer 10, and the inclined guide surface 1111b can be inclined at a predetermined angle relative to the axial direction of the sprayer 10, such that the vertical guide surface 1111a and the inclined guide surface 1111b are arranged at an acute angle. For two adjacent guide teeth 1111, the end of the inclined guide surface 1111b of one guide tooth 1111 contacts the vertical guide surface 1111a of the other guide tooth 1111, thereby forming a contact relationship between the two adjacent guide teeth 1111. The gap between two adjacent guide teeth 1111 forms a guide groove 1112. Specifically, the inclined guide surface 1111b of one guide tooth 1111 and the vertical guide surface 1111a of the other guide tooth 1111 together form the guide groove 1112. That is, the inclined guide surfaces 1111b and the vertical guide surfaces 1111a of two adjacent guide teeth 1111 form the guide groove 1112. In other embodiments, the inclined guide surfaces 1111b and the vertical guide surfaces 1111a of two adjacent guide teeth 1111 may not contact each other, so that the two adjacent guide teeth 1111 are spaced apart from each other without contact.

[0028] A sliding groove 1113 is formed on the inner wall of the boss 111 . The sliding groove 1113 extends along the axial direction of the sprayer 10 and passes through the inclined guide surface 1111 b , so that the sliding groove 1113 has an opening 1114 on the inclined guide surface 1111 b .

[0029] The load ring 112 extends along the circumference of the stationary housing 110 and is annular. The load ring 112 is disposed near the bottom end of the stationary housing 110. For example, the load ring 112 may be continuously distributed along the circumference to form a closed loop. Alternatively, the load ring 112 may be divided into a plurality of discrete arc segments disposed along the circumference, with adjacent arc segments spaced a predetermined distance apart along the circumference.

[0030] 1 and 2 , the fixed housing 110 further defines a viewing window 113. This viewing window 113 is a through hole that radially extends through the entire fixed housing 110. The fixed housing 110 further includes an indicator portion 114 disposed at the edge of the viewing window 113. For example, the indicator portion 114 may protrude from the wall of the viewing window 113 and extend a predetermined length relative to the wall along the axial direction of the sprayer 10.

[0031] 2 , 3 , and 8 , in some embodiments, the drive assembly 200 includes a rotating shaft 210 and a sleeve 220. The sleeve 220 is fixedly mounted on the rotating shaft 210 so that the sleeve 220 cannot slide or rotate relative to the rotating shaft 210, thereby enabling the rotating shaft 210 and the sleeve 220 to maintain synchronous movement. The sleeve 220 and the fixed housing 110 are arranged along the axial direction of the sprayer 10. The sleeve 220 can be in direct contact with the user, and the user can directly apply torque to the sleeve 220, so that the sleeve 220 drives the rotating shaft 210 to rotate synchronously.

[0032] The rotating shaft 210 comprises a shaft portion 211, a raised ring portion 212, and a thrust portion 213. The entire rotating shaft 210 can be integrally formed, and the axial direction of the rotating shaft 210 is aligned with the axial direction of the entire sprayer 10. The shaft portion 211 is generally tubular and can be disposed around the liquid storage bottle 20. The shaft portion 211 is spaced a predetermined distance from the liquid storage bottle 20 in the radial direction of the sprayer 10, such that the shaft portion 211 and the liquid storage bottle 20 are in a non-contact relationship. The raised ring portion 212 can be annular and is sleeved onto the shaft portion 211. The raised ring portion 212 protrudes a predetermined length relative to the surface of the shaft portion 211 in the radial direction of the sprayer 10. During installation, the fixed housing 110 is positioned around the rotating shaft 210, with the convex ring portion 212 supported by the supporting ring 112 of the fixed housing 110. The supporting ring 112 serves as an axial limiter for the installation of the convex ring portion 212 and the entire rotating shaft 210, allowing the rotating shaft 210 to rotate about its own central axis relative to the fixed housing 110. A thrust portion 213 is provided on the convex ring portion 212. The thrust portion 213 protrudes a certain length relative to the surface of the convex ring portion 212 along the axial direction of the sprayer 10. The thrust portion 213 has a first inclined surface 2131, which is inclined at a certain angle relative to the axial direction of the sprayer 10, such that the first inclined surface 2131 forms an acute angle with the axial direction of the sprayer 10. There can be two thrust portions 213, with the two thrust portions 213 spaced 180° apart along the circumference of the shaft portion 211. The number of the pushing parts 213 can also be three or more. When the number of the pushing parts 213 is three or more, all the pushing parts 213 are evenly spaced along the circumference of the shaft part 211, so that the angles between any two adjacent pushing parts 213 along the circumference of the shaft part 211 are equal.

[0033] 3 , 4 , and 9 , in some embodiments, the support disc 300 can be substantially cylindrical in shape with a relatively short axial length, and the axial direction of the support disc 300 is the same as the axial direction of the sprayer 10. The support disc 300 is sleeved within the fixed housing 110 such that the fixed housing 110 surrounds the support disc 300, and the support disc 300 surrounds the shaft portion 211 of the rotating shaft 210. The support disc 300 includes support teeth 310, a stopper 320, and a protrusion 330. The support teeth 310 and the stopper 320 are located at opposite ends of the support disc 300 in the axial direction. Obviously, the stopper 320 is located at the radial edge of the support disc 300. There are a plurality of support teeth 310, and the plurality of support teeth 310 are arranged along the circumference of the support disc 300. The supporting tooth 310 has two supporting inclined surfaces 311, one end of which is connected to each other. Both supporting inclined surfaces 311 can be tilted at a certain angle relative to the axial direction of the sprayer 10, so that the two supporting inclined surfaces 311 on the same supporting tooth 310 are connected to form an acute angle. For two adjacent supporting teeth 310, the end of the supporting inclined surface 311 of one supporting tooth 310 is connected to the end of the supporting inclined surface 311 of the other supporting tooth 310, so that the two adjacent supporting teeth 310 are in a mutually contacting relationship. The gap between the two adjacent supporting teeth 310 forms a supporting groove 312. Specifically, the supporting inclined surface 311 of one supporting tooth 310 and the supporting inclined surface 311 of the other supporting tooth 310 together form the supporting groove 312. That is, the two supporting inclined surfaces 311 of the two adjacent supporting teeth 310 form the supporting groove 312. The supporting teeth 310 are used to drive the counting disk 400 to move.

[0034] The ridges 330 are provided on the outer surface of the top support plate 300, and the ridges 330 extend along the axial direction of the sprayer 10. The ridges 330 protrude a certain length in the radial direction of the sprayer 10 relative to the outer surface of the top support plate 300. There are multiple ridges 330, and the multiple ridges 330 are arranged at intervals along the circumference of the top support plate 300. The number of the ridges 330 is equal to the number of the slide grooves 1113 on the fixed shell 110, so that the ridges 330 and the slide grooves 1113 form a one-to-one correspondence. The ridges 330 and the slide grooves 1113 slide in cooperation, so that the entire top support plate 300 can slide relative to the fixed shell 110 along the axial direction of the sprayer 10.

[0035] The support plate 300 has an annular end surface 340 that circumscribes the axis of the support plate 300. A stopper 320 protrudes from the end surface 340 of the support plate 300, extending a predetermined length relative to the end surface 340 in the axial direction of the sprayer 10. The stopper 320 has a second inclined surface 321 that is inclined at a predetermined angle relative to the axial direction of the sprayer 10, forming an acute angle therewith. The second inclined surface 321 and the first inclined surface 2131 of the push portion 213 can be inclined at the same angle relative to the axial direction of the sprayer 10. The number of stoppers 320 is equal to the number of push portions 213, creating a one-to-one correspondence between the stoppers 320 and the push portions 213. There can be two stoppers 320, each spaced 180° apart along the circumference of the push plate. The number of stoppers 320 can also be three or more. When there are three or more stoppers 320, all stoppers 320 are evenly spaced along the circumference of the support plate 300, such that the angle between any two adjacent stoppers 320 along the circumference of the support plate 300 is equal. After assembly, the stoppers 320 abut against the end surface 340 of the support plate 300. The stoppers 320 can also abut against the raised ring portion 212, such that the raised ring portion 212 and the end surface 340 of the support plate 300 are spaced a certain distance apart along the axial direction of the sprayer 10.

[0036] In other embodiments, the two supporting inclined surfaces 311 of two adjacent supporting teeth 310 may not touch, thereby allowing the adjacent supporting teeth 310 to be spaced apart and not in contact. The supporting teeth 310 of the supporting plate 300 may also be replaced with other rod-like structures, as long as the supporting plate 300 can push the counting plate 400 to move. The supporting plate 300 may also be mounted outside the fixed housing 110, so that the supporting plate 300 surrounds the fixed housing 110.

[0037] 3 and 4 , during operation, the sleeve 220 can be rotated clockwise, so that the sleeve 220 drives the rotating shaft 210 to move clockwise. When the pushing portion 213 abuts against the end surface 340 of the supporting plate 300 , the pushing portion 213 cannot push the supporting plate 300 to slide relative to the fixed housing 110 . When the pushing portion 213 of the rotating shaft 210 contacts the stop portion 320 of the pushing plate, the first inclined surface 2131 and the second inclined surface 321 will contact each other. Since both the first inclined surface 2131 and the second inclined surface 321 are inclined at a certain angle relative to the axial direction of the sprayer 10, on the one hand, the pushing portion 213 generates a component force on the stop portion 320 along the axial direction of the sprayer 10. This component force is actually the pushing force of the pushing portion 213 on the supporting plate 300, so that the pushing portion 213 pushes the entire supporting plate 300 to slide upward relative to the fixed shell 110, so that the stop portion 320 gradually moves upward away from the convex ring portion 212 of the rotating shaft 210; because the protruding strip 330 slides in cooperation with the sliding groove 1113, the smoothness of the sliding of the supporting plate 300 relative to the fixed shell 110 can be improved, and the shaking and sticking phenomena generated during the upward sliding of the supporting plate 300 can be reduced. On the other hand, as the support plate 300 gradually moves upward, it provides a clearance space for the rotation of the rotating shaft 210, effectively preventing the stopper 320 from obstructing the rotation of the rotating shaft 210. At the moment when the push portion 213 passes over the stopper 320 and stops contacting it, the push portion 213 loses its support for the support plate 300, allowing the support plate 300 to slide downward under the force of its own weight, and then the stopper 320 gradually moves closer to the raised ring portion 212 until it abuts against the raised ring portion 212. In other embodiments, an elastic member can also be used to press against the support plate 300 and quickly reset it through elastic force; specifically, the elastic member can be a spring coaxially sleeved on the outside of the rotating shaft 210 of the sprayer 10.

[0038] Therefore, by properly setting the number of the pushing portions 213 and the stop portions 320, during the continuous clockwise rotation of the rotating shaft 210, the rotating shaft 210 can periodically push the supporting plate 300 to slide upward relative to the fixed housing 110, thereby causing the supporting plate 300 to periodically reciprocate up and down relative to the fixed housing 110. For example, when the number of both the pushing portions 213 and the stop portions 320 is two, the rotating shaft 210 can push the supporting plate 300 to reciprocate up and down relative to the fixed housing 110 once for every 180° rotation. For another example, when the number of both the pushing portions 213 and the stop portions 320 is three, the rotating shaft 210 can push the supporting plate 300 to reciprocate up and down relative to the fixed housing 110 once for every 120° rotation.

[0039] Referring to Figures 3, 10, and 11, in some embodiments, the counting disc 400 can be substantially cylindrical with a relatively short axial length. The axial direction of the counting disc 400 is aligned with the axial direction of the sprayer 10. The counting disc 400 is sleeved within the fixed housing 110, such that the fixed housing 110 surrounds the counting disc 400, and the counting disc 400 surrounds the shaft portion 211 of the rotating shaft 210. The counting disc 400 includes rotating teeth 410 and raised portions 420, which are located at opposite ends of the counting disc 400 in the axial direction. There are multiple rotating teeth 410, which are arranged along the circumference of the counting disc 400. The rotating tooth 410 has a vertical rotating surface 411 and an inclined rotating surface 412. One end of the vertical rotating surface 411 and the inclined rotating surface 412 are connected to each other. The vertical rotating surface 411 can extend along the axial direction of the sprayer 10, and the inclined rotating surface 412 can be inclined at a certain angle relative to the axial direction of the sprayer 10, so that the vertical rotating surface 411 and the inclined rotating surface 412 are set at an acute angle.

[0040] For two adjacent rotating teeth 410, the inclined rotating surface 412 of one rotating tooth 410 and the vertical rotating surface 411 of the other rotating tooth 410 do not contact each other, but are set at a distance along the circumference of the counting disk 400, so that the two adjacent rotating teeth 410 form a non-contact relationship, that is, the two adjacent rotating teeth 410 are set at a circumferential interval on the counting disk 400. The gap between two adjacent rotating teeth 410 will form a receiving groove 414. Specifically, the counting disk 400 further has an end surface 413, which is located between the two adjacent rotating teeth 410. The rotating teeth 410 protrude a certain length relative to the end surface 413 along the axial direction of the sprayer 10; for two adjacent rotating teeth 410, one end of the end surface 413 is connected to the vertical rotating surface 411 of one of the rotating teeth 410, and the other end of the end surface 413 is connected to the inclined rotating surface 412 of the other rotating tooth 410, so that the end surface 413, the inclined rotating surface 412 of one of the rotating teeth 410 and the vertical rotating surface 411 of the other rotating tooth 410 together form the receiving groove 414. Referring to Figures 6 and 7, the guide tooth 1111 of the fixed shell 110 can cooperate with the receiving groove 414, and the rotating tooth 410 can simultaneously cooperate with the supporting groove 312 and the guide groove 1112. In other embodiments, the inclined rotating surfaces 412 and the vertical rotating surfaces 411 of two adjacent rotating teeth 410 are in contact with each other, so that the two adjacent rotating teeth 410 are in contact with each other.

[0041] The raised portion 420 protrudes a predetermined length from the main portion of the counter disk 400 along the axial direction of the sprayer 10. The raised portion 420 has a third inclined surface 421 that is inclined at a predetermined angle relative to the axial direction of the sprayer 10, the angle being less than 90°. The counter disk 400 is also provided with a scale mark 430 located on the outer surface of the counter disk 400. For example, the scale mark 430 may be a recessed groove provided on the outer surface that extends a predetermined distance along the axial direction of the sprayer 10. There may be multiple scale marks 430, evenly spaced along the circumference of the counter disk 400, such that the angular spacing between any two adjacent scale marks 430 along the circumference of the counter disk 400 is equal. The counter disk 400 may also be provided with a count corresponding to each scale mark 430. The maximum value of the count may be 70, and the minimum value may be 0. In other embodiments, the scale mark 430 may also be a protrusion or a scale line provided on the outer side surface of the counting disk 400 .

[0042] 1 , the viewing window 113 on the fixed housing 110 exposes a portion of the scale markings 430 on the counter disk 400. The user can directly observe the scale markings 430 in the viewing window 113, and the indicator 114 will point to a specific scale marking 430, allowing the user to quickly and accurately determine the remaining amount of the medicinal solution in the liquid storage bottle 20, thereby allowing the user to accurately determine the amount of medicinal solution to be ingested. For example, when the indicator 114 points to the scale marking 430 with a count of 70, the liquid storage bottle 20 contains 70 units of medicinal solution. When the indicator 114 points to the scale marking 430 with a count of 0, the liquid storage bottle 20 contains 0 units of medicinal solution. When the indicator 114 points to the scale marking 430 with a count of N, the liquid storage bottle 20 contains N units of medicinal solution. Of course, when the indicator 114 points to the scale mark 430 of 70, it may mean that the liquid storage bottle 20 is in a saturated full bottle state, at which time, no consumption has occurred in the liquid storage bottle 20. When the indicator 114 points to the scale mark 430 of 0, it means that the liquid storage bottle 20 is in a completely empty bottle state, at which time, all the liquid in the liquid storage bottle 20 has been consumed.

[0043] Referring to Figures 1, 2, and 4, in some embodiments, the counting disk 400 is provided with a first hole 440. The first hole 440 is a through hole that radially extends through the counting disk 400. For example, the first hole 440 can be provided on an extension line of the scale mark 430 indicating the maximum count. The shaft portion 211 of the rotating shaft 210 is provided with a second hole 2112. The diameter of the second hole 2112 can be larger than that of the first hole 440. The first hole 440 can be a circular hole, while the second hole 2112 can be an elongated hole. When a new, full liquid storage bottle 20 is loaded into the sprayer 10, the first hole 440 is within the coverage of the viewing window 113, and the first hole 440 and the second hole 2112 are aligned with each other. This ensures that the indicator 114 is precisely pointing to the scale mark 430 indicating the maximum count, indicating that the liquid storage bottle 20 is in the initial full state. Therefore, when loading the sprayer 10 with a full liquid storage bottle 20, the user must adjust the position of the counting disk 400 relative to the rotating shaft 210. When the user can see the second hole 2112 through the first hole 440, the first hole 440 and the second hole 2112 are aligned with each other, the counting disk 400 and the rotating shaft 210 are accurately aligned, and the indicator 114 just points to the scale mark 430 with the maximum count.

[0044] Furthermore, to improve operational convenience, the sprayer 10 may also include a positioning member 510 that can be simultaneously inserted into or removed from the first hole 440 and the second hole 2112. During the process of loading the sprayer 10 with a full liquid storage bottle 20, the position of the counting disc 400 relative to the rotating shaft 210 is adjusted. When the positioning member 510 can be simultaneously inserted into the first hole 440 and the second hole 2112, the counting disc 400 and the rotating shaft 210 are accurately aligned, ensuring that the indicator 114 precisely points to the scale mark 430 with the maximum count. This effectively avoids visually determining whether the first hole 440 and the second hole 2112 are aligned. Instead, the positioning member 510 replaces the visual judgment of whether the first hole 440 and the second hole 2112 are aligned, ultimately improving the alignment efficiency of the counting disc 400 and the rotating shaft 210. After a new, full liquid storage bottle 20 is loaded into the sprayer 10, when the sprayer 10 is in use, in order to prevent the positioning member 510 from interfering with the rotation of the rotating shaft 210, the user can directly pull out the positioning member 510 inserted into the first hole 440 and the second hole 2112 by hand, or the positioning member 510 can be sucked out of the first hole 440 and the second hole 2112 by a strong magnet.

[0045] 3 and 4 , in some embodiments, the sprayer 10 further includes an elastic clip 520, which can be pressed between the housing assembly 100 and the shaft portion 211 of the rotating shaft 210. One end of the elastic clip 520 is slidably connected to the top cover 120 of the housing assembly 100, and the other end of the elastic clip 520 is a free end that abuts the surface of the shaft portion 211. The shaft portion 211 is provided with a groove 2111, which can extend a certain length along the axial direction of the sprayer 10. In the initial state, the free end of the elastic clip 520 is spaced a certain distance from the position of the groove 2111 in the axial direction of the sprayer 10. This can be generally understood as the groove 2111 being located above the free end of the elastic clip 520. During the rotation of the shaft 210, when there is still liquid medicine in the liquid storage bottle 20, the elastic clip 520 cannot cooperate with the groove 2111 to circumferentially position the shaft portion 211, so that the free end of the elastic clip 520 does not hinder the rotation of the shaft portion 211. Since the counting disk 400 includes the protrusion 420, the protrusion 420 has a third inclined surface 421. During the rotation of the shaft 210, when the liquid in the liquid storage bottle 20 is completely consumed, the protrusion 420 will rotate to a position corresponding to the elastic clip 520. The third inclined surface 421 of the protrusion 420 will abut against the elastic clip 520, and the third inclined surface 421 will generate an upward thrust on the elastic clip 520, causing the elastic clip 520 to slide upward relative to the housing assembly 100 for a certain distance. The groove 2111 of the shaft 211 just rotates to a position corresponding to the free end of the elastic clip 520. At this time, the elastic clip 520 releases energy, and the free end of the elastic clip 520 is finally engaged in the groove 2111. The elastic clip 520 forms a circumferential positioning effect on the shaft 211, thereby preventing the shaft 210 from further rotation. Therefore, during the use of the sprayer 10, if the shaft 210 cannot rotate, it means that the liquid in the liquid storage bottle 20 has been completely consumed.

[0046] In some embodiments, the sprayer 10 further includes an elastic member 530, which is sleeved on the shaft portion 211 of the rotating shaft 210. The ends of the elastic member 530 respectively abut the top cover 120 and the counting disk 400. The elastic force generated by the elastic member 530, as well as the weight of the supporting disk 300 and the counting disk 400, can cause the supporting disk 300 and the counting disk 400 to move downward.

[0047] The working principle of the sprayer 10 is described below:

[0048] 3 , 6 and 7 , the user drives the rotating shaft 210 to rotate through the sleeve 220. When the pushing portion 213 abuts against the end surface of the supporting plate 300, the pushing portion 213 cannot push the supporting plate 300 to slide relative to the fixed shell 110, and the supporting plate 300 is in a stationary state. At this time, the rotating tooth 410 is simultaneously accommodated in the supporting groove 312 and the guide groove 1112, and the guide tooth 1111 is accommodated in the accommodating groove 414. The vertical rotating surface 411 of the rotating tooth 410 is in contact with the vertical guide surface 1111a of the guide tooth 1111, and the inclined rotating surface 412 of the rotating tooth 410 is in contact with the inclined guide surface 1111b of the guide tooth 1111. The supporting tooth 310 abuts against the inclined rotating surface 412 of the rotating tooth 410. When the first inclined surface 2131 of the pushing portion 213 abuts the second inclined surface 321 of the stopper 320, the pushing portion 213 pushes the supporting plate 300 upward relative to the fixed housing 110. This causes the supporting tooth 310, via its inclined rotational surface, to push the rotating tooth 410 and the entire counter plate 400 upward. As the rotating tooth 410 moves upward, the inclined rotating surface 412 of the rotating tooth 410 gradually moves away from the inclined guide surface 1111b of the guide tooth 1111. The rotating tooth 410 moves upward along the extension direction of the vertical guide surface 1111a. The upwardly moving counter plate 400 compresses the elastic member 530, causing it to store energy.

[0049] When the end of the rotating tooth 410 moves upward to the end of the guide tooth 1111, the first inclined surface 2131 is about to disengage from the second inclined surface 321. At this time, under the action of the elastic force of the elastic member 530, and the guiding effect of the inclined guide surface 1111b on the inclined rotating surface 412, the rotating tooth 410 disengages from one of the guide grooves 1112 and enters into another adjacent guide groove 1112. When the rotating tooth 410 enters from one guide groove 1112 to another adjacent guide groove 1112, the first inclined surface 2131 disengages from the second inclined surface 321. Under the action of gravity and the elastic force of the elastic member 530, both the supporting plate 300 and the counting plate 400 slide downward. While the counting plate 400 slides downward, the counting plate 400 rotates. Obviously, the sprayer 10 does not spray the liquid medicine while the counting plate 400 slides upward. However, when the counting plate 400 rotates, the rotation of the counting plate 400 triggers the sprayer 10 to spray a certain dose of the liquid medicine in the liquid storage bottle 20. When the counting plate 400 stops rotating, the counting plate 400 stops triggering the sprayer 10 to spray the liquid medicine, and the indicator 114 points to the new scale mark 430 (see FIG. 1 ). Therefore, each time the counter disk 400 rotates, the user can accurately know the dosage of the medicine sprayed by the nebulizer 10 and the dosage of the remaining medicine in the liquid storage bottle 20 through the scale mark 430 pointed to by the indicator portion 114.

[0050] For example, before the counter disk 400 rotates, the indicator 114 points to a scale mark 430, which is the first scale mark. The number corresponding to this first scale mark is 55, indicating that 55 unit doses of liquid medicine remain in the liquid storage bottle 20. After the shaft 210 rotates once, causing the counter disk 400 to rotate once, the indicator 114 points to the next scale mark 430, which is the second scale mark. The number corresponding to this second scale mark is 54, indicating that 54 unit doses of liquid medicine remain in the liquid storage bottle 20. Therefore, during this rotation of the counter disk 400, the nebulizer 10 has dispensed one unit dose of medicine, meaning that the user has ingested one unit dose of medicine. Therefore, by continuously rotating the shaft 210 and observing the scale mark 430 pointed to by the indicator 114, the amount of liquid medicine dispensed by the nebulizer 10 during that rotation of the shaft 210 can be accurately determined, as well as the amount of liquid medicine remaining in the liquid storage bottle 20.

[0051] Each time the rotating shaft 210 rotates a set angle, it pushes the supporting plate 300 to slide upward once, thereby rotating the counter disk 400 once, and subsequently causing the nebulizer 10 to spray a certain dose of liquid medicine. For example, when there are two pushing portions 213, each 180° rotation of the rotating shaft 210 pushes the supporting plate 300 to slide upward once, causing the counter disk 400 to rotate once. The angle at which the counter disk 400 rotates once can be the angle of the circumferential spacing between two or more adjacent scale marks. When the angle at which the counter disk 400 rotates once is the angle of the circumferential spacing between two adjacent scale marks, the nebulizer 10 sprays one unit dose of medicine per rotation of the counter disk 400. When the angle at which the counter disk 400 rotates once is the angle of the circumferential spacing between three or four adjacent scale marks, the nebulizer 10 sprays two or three unit doses of medicine per rotation of the counter disk 400.

[0052] When the sprayer 10 has completely sprayed the medicine in the liquid storage bottle 20, the indicator portion 114 will point to the scale mark 430 corresponding to the count 0; at the same time, the protrusion 420 will rotate to a position corresponding to the elastic clip 520, and the protrusion 420 will generate an upward thrust force on the elastic clip 520, causing the elastic clip 520 to slide upward a certain distance relative to the housing assembly 100, and then the free end of the elastic clip 520 will be inserted into the groove 2111 of the shaft portion 211, thereby locking the entire shaft 210 and preventing the user from continuing to drive the shaft 210 to rotate.

[0053] In some embodiments, the number of guide teeth 1111 is the quotient obtained by dividing the maximum count corresponding to the scale mark 430 by an odd number. The number of support teeth 310 can also be the quotient obtained by dividing the maximum count corresponding to the scale mark 430 by an odd number. This configuration can reasonably reduce the number of guide teeth 1111 and support teeth 310, thereby reducing mold processing difficulty, lowering the manufacturing cost of the sprayer 10, and improving the smoothness of the movement of the counting disk 400. For example, if the maximum design count is 69, according to the maximum ratio design, the number of guide teeth 1122 is 69, and the aforementioned odd number is 1. Furthermore, to reduce mold processing difficulty and lower the manufacturing cost of the sprayer 10, the aforementioned odd number is 3, that is, the maximum design count is 69, and the number of guide teeth 1122 is 23. Obviously, the number of guide teeth 1122 is reduced, but the effect of 69 counts is still achieved. Similarly, when the maximum design count is other values, corresponding numerical relationships can also be used. For example, when the maximum count value is 60, the number of guide teeth 1122 can be 60, 20, 12, etc. Of course, the number of guide teeth 1122 cannot be too small, as too small will affect the stability and smoothness of rotation. Therefore, preferably, the odd value is one of 1, 3, and 5.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A sprayer, characterized in that: include: A housing assembly, the housing assembly comprising a fixed housing, the fixed housing comprising an indicator portion and a plurality of guide teeth arranged in a circumferential direction, wherein a guide groove is formed between two adjacent guide teeth; a top support plate, slidably connected to the fixed shell along the axial direction of the shell assembly; A counting disk, comprising a plurality of rotating teeth arranged along the circumferential direction, a receiving groove being formed between two adjacent rotating teeth, the rotating teeth cooperating with the guide grooves, the guide teeth cooperating with the receiving grooves, and the counting disk being provided with scale marks arranged along the circumferential direction; and The driving assembly is movably connected to the fixed shell and can abut against the radial edge of the top support disk, thereby periodically driving the top support disk to slide so that the counting disk rotates and the indicating part points to different scale marks.

2. The sprayer according to claim 1, characterized in that The counting disk and the supporting disk are both sleeved in the fixed shell.

3. The sprayer according to claim 1, wherein The sprayer further includes an elastic member, and the housing assembly further includes a top cover, the top cover is connected to the fixed shell and is spaced apart from the counting disk in the axial direction, and the elastic member is pressed between the top cover and the counting disk.

4. The sprayer according to claim 3, characterized in that The elastic member is a spring, and the spring is sleeved on the driving assembly.

5. The sprayer according to claim 1, wherein The driving assembly includes a rotating shaft, which includes a shaft portion, a convex ring portion and a pushing portion. The shaft portion is rotatably sleeved within the supporting disk and the counting disk and surrounds the liquid storage bottle. The convex ring portion is sleeved on the shaft portion, and the pushing portion is protruded along the axial direction of the shaft portion on the convex ring portion. When the shaft portion rotates, the pushing portion pushes the supporting disk to slide.

6. The sprayer according to claim 5, characterized in that The supporting plate includes a stop portion located at the end, the pushing portion has a first inclined surface set at an acute angle to the axial direction of the shaft portion, and the stop portion has a second inclined surface set at an acute angle to the axial direction of the shaft portion, and the first inclined surface and the second inclined surface can periodically abut each other.

7. The sprayer according to claim 6, characterized in that The number of the stop parts and the pushing parts is equal and multiple, and the multiple pushing parts and the stop parts are evenly spaced along the circumferential direction.

8. The sprayer according to claim 5, characterized in that The drive assembly further includes a sleeve, which is fixedly sleeved on the shaft portion and is axially aligned with the fixed shell.

9. The sprayer according to claim 1, wherein The sprayer also includes an elastic clip pressed between the shell assembly and the drive assembly, one end of the elastic clip is arranged on the shell assembly, and a groove is provided on the drive assembly. When the other end of the elastic clip is inserted into the groove, the drive assembly stops moving.

10. The sprayer according to claim 9, characterized in that The elastic clip is slidably connected to the housing assembly, and the counting disk includes a protrusion arranged on one end away from the rotating tooth, and the protrusion has a third inclined surface. When the counting disk rotates, the third inclined surface pushes the elastic clip to slide so that the other end of the elastic clip is inserted into the groove.

11. The sprayer according to claim 1, wherein The supporting plate includes a plurality of supporting teeth arranged along the circumferential direction, and a supporting groove is formed between two adjacent supporting teeth, and the supporting groove cooperates with the rotating teeth.

12. The sprayer according to claim 11, characterized in that The top support tooth includes two top support inclined surfaces that are connected to each other and arranged at an angle to the axial direction of the top support disk. The two top support inclined surfaces on the same top support tooth form an acute angle, and the two top support inclined surfaces of two adjacent top support teeth are connected to each other and form the top support groove.

13. The sprayer according to claim 1, wherein A window hole for exposing the scale mark is formed on the fixed shell, the indicator portion is arranged at the edge of the window hole, a first hole is formed on the counting disk, and a second hole is formed on the driving assembly. When a new liquid storage bottle is installed in the sprayer, the first hole is within the coverage range of the window hole and is aligned with the second hole.

14. The sprayer according to claim 13, wherein The sprayer further includes a positioning member capable of being inserted into or removed from the first hole and the second hole at the same time.

15. The sprayer according to claim 14, characterized in that The diameter of the second hole is larger than that of the first hole. The first hole is a circular hole, and the second hole is an elongated hole.

16. The sprayer according to claim 1, wherein The fixed shell includes a boss protruding from the inner wall surface of the fixed shell, the boss includes the guide tooth, the guide tooth has a vertical guide surface and an inclined guide surface connected to each other, the vertical guide surface is parallel to the axial direction of the fixed shell, the inclined guide surface forms an acute angle with the vertical guide surface, and the vertical guide surface and the inclined guide surface of two adjacent guide teeth form the guide groove.

17. The sprayer according to claim 16, characterized in that The boss is provided with a slide groove penetrating the inclined guide surface, and the top support plate includes a convex strip protruding from the outer side surface of the top support plate, and the convex strip cooperates with the slide groove.

18. The sprayer according to claim 16, wherein For two adjacent guide teeth, the end of the inclined guide surface of one guide tooth contacts the vertical guide surface of the other guide tooth.

19. The sprayer according to claim 1, wherein The rotating tooth includes a vertical rotating surface and an inclined rotating surface connected to each other, the vertical rotating surface extends along the axial direction of the counting disk, and the inclined rotating surface forms an acute angle with the vertical rotating surface; for two adjacent rotating teeth, the vertical rotating surface of one rotating tooth and the inclined rotating surface of the other rotating tooth are spaced a set distance along the circumference of the counting disk and are used to enclose the receiving groove.

20. The sprayer according to any one of claims 1 to 19, characterized in that The number of the guide teeth is a quotient obtained by dividing the maximum count corresponding to the scale mark by an odd number.