Improved sprayer and spray bottle

Abstract

The utility model belongs to the technical field of spraying equipment, and provides an improved sprayer and a spraying bottle, and the sprayer comprises a pressing cover, a piston, a clamping seat and an elastic element; the clamping seat is provided with a storage cavity, and a liquid inlet channel is arranged in the storage cavity; the piston comprises a piston body and a center rod; the plug body is provided with a through groove at the axis, and the center rod is arranged in the through groove; the plug body is arranged in the storage cavity, and the elastic element is arranged between the plug body and the clamping seat; a spray nozzle is formed in the side surface of the pressing cover; an inner cover is fixedly arranged in an inner cavity of the pressing cover, a liquid outlet groove is formed between the inner cover and the pressing cover, and a liquid outlet hole is formed in the end face of the inner cover. The end face, close to the pressing cover, of the plug body is provided with a boss, and the boss is matched with the liquid outlet hole in a sealed mode. And the plug body is dynamically sealed with the inner wall of the inner cover. The atomizer is good in sealing performance, capable of effectively preventing seepage, good in explosive power and beneficial to improving the atomization effect.

Description

Technical Field

[0001] This utility model pertains to spraying equipment, specifically relating to an improved sprayer and spray bottle. Background Technology

[0002] Currently, push-button atomizers on the market have complex structures and many parts, generally including pump bodies, pistons, mist droplets, springs, steel balls, etc., resulting in complex manufacturing and assembly processes and high material consumption. In order to solve this problem, existing technologies have produced push-button atomizers or atomizing pumps with only a few parts, but these have defects such as insufficient sealing and weak atomized spray force. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide an improved sprayer with good sealing performance, which can effectively prevent leakage, and has good burst force, which is conducive to improving the atomization effect.

[0004] Another objective of this invention is to provide a spray bottle comprising the aforementioned improved sprayer.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An improved sprayer includes a cap, a piston, a retainer, and a resilient element;

[0007] The card holder has a storage cavity with an opening facing the cap side, and the storage cavity has a liquid inlet channel communicating with the bottle body; the piston includes a plug body and a central rod coaxial with the liquid inlet channel; the plug body has a through groove at its axis, the central rod is disposed in the through groove and the through groove remains open; the plug body can slide axially in the storage cavity and the plug body dynamically seals with the inner wall of the storage cavity; the elastic element is disposed between the plug body and the card holder for the elastic reset of the piston; when the central rod moves towards the bottle body side in the liquid inlet channel, the central rod first seals the liquid inlet channel and then opens the liquid inlet channel;

[0008] The side of the cover is provided with a spray nozzle; an inner cover is fixedly provided in the inner cavity of the cover, and a liquid outlet groove communicating with the spray nozzle is provided between the inner cover and the cover, and a liquid outlet hole communicating with the liquid outlet groove is provided on the end face of the inner cover.

[0009] The plug body has a boss on its end face near the cover, and the boss is sealed to the liquid outlet hole; the plug body is dynamically sealed to the inner wall of the inner cover.

[0010] In a preferred embodiment of this utility model, the boss is in the shape of a frustum cone, with the larger end connected to the plug body, and the smaller end sealingly engaging with the liquid outlet hole in its natural state.

[0011] In a preferred embodiment of this utility model, a sealing ring is connected to the outer wall of the plug body near the end of the push-button cover, and the sealing ring dynamically seals with the inner wall of the inner cover; one end of the elastic element acts on the end face of the sealing ring facing the card seat, and the other end of the elastic element acts on the card seat.

[0012] Preferably, the sealing ring has an annular groove on the side facing the inner cover; the inner cavity end face of the inner cover has a positioning ring; the positioning ring is located in the annular groove.

[0013] In a preferred embodiment of this utility model, the central rod and the through groove are provided with a plurality of connecting parts near the cover, and hollow holes are provided between the plurality of connecting parts; the boss is coaxial with the central rod.

[0014] In a preferred embodiment of this utility model, a flow guiding gap is provided between the edge of the inner cavity end face of the cover and the inner cover, and the flow guiding gap is connected to the spray nozzle; the end face of the inner cover is provided with a plurality of flow guiding grooves, one end of each flow guiding groove is connected to the liquid outlet hole, and the other end of each flow guiding groove extends radially and is connected to the flow guiding gap; all the flow guiding grooves and the flow guiding gap form the liquid outlet groove.

[0015] In a preferred embodiment of this utility model, the spray nozzle includes a spray hole and a cyclone groove, the cyclone groove being disposed on the inner wall of the cover; the cyclone groove includes a circular groove communicating with the spray hole, and a centrally symmetrical inclined channel, a transverse channel, and a vertical channel are respectively disposed on both sides of the circular groove, the vertical channel, the transverse channel, the inclined channel, and the circular groove being sequentially connected; the vertical channel is connected to the liquid outlet groove.

[0016] In a preferred embodiment of this utility model, the inner cavity of the push-button cover and the inner cover are interference-fitted.

[0017] Preferably, the inner wall of the cover is provided with a second protrusion, the second protrusion is located below the spray nozzle, and the second protrusion is sealed to the outer wall of the inner cover.

[0018] In a preferred embodiment of the present invention, the storage cavity is provided with an axially extending central tube, the liquid inlet channel is disposed in the central tube, and the central tube is located in the through groove.

[0019] Preferably, the liquid inlet channel includes a first liquid inlet section, an enlargement section, and a second liquid inlet section arranged sequentially along the liquid outflow direction; the inner diameter of the enlargement section is larger than that of the second liquid inlet section;

[0020] The central rod has a radially outward protruding sealing part in the middle section. The sealing part is adapted to the inner diameter of the second liquid inlet section and can seal the liquid inlet channel. The sealing part is smaller than the inner diameter of the enlarged section to enable the liquid inlet channel to be opened.

[0021] In a preferred embodiment of this utility model, the card holder is provided with a protective cylinder on the side facing the cover, the protective cylinder is located on the outside of the wall of the storage cavity, and a limiting cavity is formed between the protective cylinder and the wall of the storage cavity; the elastic element includes a spring, the spring is sleeved on the outside of the wall of the storage cavity and located in the limiting cavity, and one end acts on the plug and the other end acts on the bottom of the limiting cavity;

[0022] The cover is fitted over the protective cylinder, and a limiting structure is provided between the cover and the protective cylinder to prevent the cover from coming off.

[0023] Preferably, the card holder has a third step, which is located outside the protective cylinder and corresponds to the end of the press cap facing the card holder. In this embodiment, the third step restricts the movement of the press cap, thereby also restricting the pressing stroke of the entire sprayer.

[0024] In a preferred embodiment of this utility model, the side of the card holder facing away from the push-button cover is provided with an installation cavity for assembling with the bottle mouth of the bottle body; the installation cavity is provided with an installation post, the installation post is provided with an installation groove communicating with the liquid inlet channel, and an outlet pipe is assembled in the installation groove.

[0025] A spray bottle includes an improved sprayer and a bottle body, wherein the improved sprayer is assembled and fixed to the bottle mouth of the bottle body.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] This improved sprayer has fewer parts, with only six components in its overall structure, simplifying assembly and reducing costs. Furthermore, by incorporating an inner cover within the press cap and utilizing the liquid outlet on the inner cover to seal against the protrusion on the stopper body, the sealing effect between the press cap and the stopper body is effectively improved. Compared to traditional technologies, this improved sprayer, by employing the protrusion and liquid outlet cooperation at key sealing positions, allows for a smaller sealing structure, making it easier to achieve a reliable and consistent seal during use, preventing liquid from leaking from the stopper body groove into the spray nozzle. While improving the sealing effect, it also requires greater pressure from the liquid to break the seal between the protrusion and the liquid outlet, thereby increasing the overall burst force of the sprayer and resulting in better liquid atomization. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional exploded view of the improved sprayer of this utility model.

[0030] Figure 2 This is a first cross-sectional view of the improved sprayer of this utility model.

[0031] Figure 3 This is a second cross-sectional view of the improved sprayer of this utility model.

[0032] Figure 4 for Figure 1 A three-dimensional view of the piston.

[0033] Figure 5 for Figure 1 A cross-sectional view of the middle card slot.

[0034] Figure 6 for Figure 1 A cross-sectional view of the cover.

[0035] Figure 7 for Figure 1 A three-dimensional view of the inner cover.

[0036] in:

[0037] 1-Press cover, 101-Second protrusion, 102-First step, 103-Spherical groove;

[0038] 2-Inner cover, 201-Positioning ring, 202-Liquid outlet, 203-Guide groove;

[0039] 3-Piston, 301-Plug body, 302-Sealing ring, 303-First protrusion, 304-Annular groove, 305-Boss, 306-Hollow hole, 307-Connecting part, 308-Center rod, 309-Sealing part;

[0040] 4-Elastic element;

[0041] 5-Card holder, 501-Ring buckle, 502-Center tube, 503-Protective cylinder, 504-Second step, 505-Third step, 506-Mounting post, 507-Inner sealing ring;

[0042] 6-Discharge tube;

[0043] 7-Storage cavity;

[0044] 8-Through groove;

[0045] 9-Liquid inlet channel, 901-First liquid inlet section, 902-Second liquid inlet section, 903-Expansion section;

[0046] 10 - Mounting cavity;

[0047] 11-Spray nozzle, 1101-Spray hole, 1102-Circular groove, 1103-Inclined channel, 1104-Horizontal channel, 1105-Vertical channel;

[0048] 12-Transition Channel;

[0049] 13-Mounting slot;

[0050] 14-Limiting cavity,

[0051] 15 - Guide gap. Detailed Implementation

[0052] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0054] Example 1

[0055] See Figures 1-7This embodiment discloses an improved sprayer, including a cap 1, a piston 3, a retainer 5, and an elastic element 4. The retainer 5 has a storage cavity 7 with an opening facing the cap 1, and the storage cavity 7 has a liquid inlet channel 9 communicating with the bottle body. The piston 3 includes a stopper 301 and a central rod 308 coaxial with the liquid inlet channel 9. The stopper 301 has a through groove 8 along its axis, and the central rod 308 is disposed in the through groove 8, which remains open. The stopper 301 is axially slidable within the storage cavity 7 and dynamically seals against the inner wall of the storage cavity 7. The elastic element 4 is disposed between the stopper 301 and the retainer 5 for elastic reset of the piston 3. When the central rod 308 moves towards the bottle body in the liquid inlet channel 9, the central rod 308 first seals the liquid inlet channel 9 and then opens it.

[0056] Furthermore, in this embodiment, a spray nozzle 11 is provided on the side of the cover 1. An inner cover 2 is fixedly disposed in the inner cavity of the cover 1, and the inner cover 2 is fixedly connected to the cover 1, which can be fixed by an interference fit. A liquid outlet groove communicating with the spray nozzle 11 is provided between the inner cover 2 and the cover 1. Specifically, the liquid outlet groove in this embodiment can be formed in the following way: a flow guide gap 15 is left between the edge of the inner cavity end face of the cover 1 and the inner cover 2, and the flow guide gap 15 is communicating with the spray nozzle 11; the end face of the inner cover 2 is provided with a plurality of flow guide grooves 203, and the inner cover 2 is also provided with a liquid outlet hole 202 penetrating the inner cover 2; one end of each flow guide groove 203 is communicating with the liquid outlet hole 202, and the other end of each flow guide groove 203 extends radially and is communicating with the flow guide gap 15; all the flow guide grooves 203 and the flow guide gap 15 form the liquid outlet groove. Meanwhile, a boss 305 is provided on the end face of the plug body 301 near the cover 1, and the boss 305 is sealed to the liquid outlet hole 202; the plug body 301 is dynamically sealed to the inner wall of the inner cover 2.

[0057] In one embodiment, the boss 305 is shaped like a frustum, with the larger end connected to the plug 301, and the smaller end sealingly engaging with the liquid outlet 202 in its natural state. This frustum shape of the boss 305 creates a more effective seal with the liquid outlet 202. Especially under the elastic force of the elastic element 4, the boss 305 can more effectively press against the liquid outlet 202, improving the seal and effectively preventing leakage through the gap. This significantly improved sealing also results in a stronger burst of liquid when the cap 1 is pressed to spray, leading to better liquid atomization. In addition, since the boss 305 in this embodiment is truncated cone-shaped, when the boss 305 and the liquid outlet 202 are sealed, there is still a liquid outlet gap between the top of the inner cover 2 and the plug 301. This allows the liquid to flow out of the through groove 8 and then cover the liquid outlet gap to better form sufficient pressure, thereby breaking the seal between the boss 305 and the liquid outlet 202, and finally reaching the liquid outlet groove and the spray nozzle 11 and being atomized and sprayed out.

[0058] As another embodiment, the boss 305 can also be set to other shapes, such as the common cylindrical shape. In this case, in order to improve the sealing effect between the boss 305 and the liquid outlet 202, a radially protruding structure can be provided on the inner wall of the liquid outlet 202 or the outer wall of the boss 305, or a sealing ring can be added.

[0059] A sealing ring 302 is connected to the outer wall of the plug body 301 near the end of the cover 1, and the sealing ring 302 dynamically seals with the inner wall of the inner cover 2. One end of the elastic element 4 acts on the end face of the sealing ring 302 facing the card seat 5, and the other end of the elastic element 4 acts on the card seat 5. To achieve dynamic sealing between the outer wall of the sealing ring 302 and the inner cover 2, this embodiment provides a first protrusion 303 on the outer wall of the sealing ring 302, and the dynamic sealing effect is formed by the compression of the first protrusion 303 with the inner wall of the inner cover 2. Of course, a protrusion can also be provided on the inner wall of the inner cover 2, or a sealing ring can be provided on the inner cover 2 or the sealing ring 302 to form a seal.

[0060] See Figures 2-4 In this embodiment, the sealing ring 302 has an annular groove 304 on the side facing the inner cover 2; the inner cavity end face of the inner cover 2 has a positioning ring 201; the positioning ring 201 is located in the annular groove 304. In this embodiment, both the annular groove 304 and the positioning ring 201 are provided with inclined surfaces, which facilitates the piston 3 and the inner cover 2 to form a guiding position during assembly, which is beneficial to improving the assembly accuracy.

[0061] See Figures 2-4 A plurality of connecting portions 307 are provided between the central rod 308 and the through groove 8 near the cover 1, and hollow holes 306 are provided between the plurality of connecting portions 307; the boss 305 is coaxial with the central rod 308. Specifically, in this embodiment, the connecting portions 307 between the central rod 308 and the end of the through groove 8 are equidistantly distributed along the circumferential direction, so that the hollow holes 306 are also evenly distributed, which is conducive to the uniform flow of liquid. The coaxial arrangement of the boss 305 and the central rod 308 is conducive to the liquid flowing out of the through groove 8 and generating strong and concentrated pressure more accurately on the boss 305 and the liquid outlet 202. Combined with the fact that the boss 305 is a truncated cone structure, the liquid is more explosive when it is ejected through the gap between the boss 305 and the liquid outlet 202.

[0062] See Figure 2 , Figure 3 and Figure 6The spray nozzle 11 includes a spray hole 1101 and a cyclone groove, which is disposed on the inner wall of the cover 1. The cyclone groove includes a circular groove 1102 communicating with the spray hole 1101. A centrally symmetrical inclined channel 1103, a transverse channel 1104, and a vertical channel 1105 are respectively provided on both sides of the circular groove 1102. The vertical channel 1105, the transverse channel 1104, the inclined channel 1103, and the circular groove 1102 are sequentially connected. The vertical channel 1105 is connected to the liquid outlet groove, specifically to the flow guide gap 15. In this embodiment, the included angle between the vertical axis of the inclined channel 1103 and the circular groove 1102 is preferably set to 30-60°. To better adapt to the spray nozzle 11, a spherical groove 108 is provided on the corresponding position of the outer wall of the cover 1 in this embodiment.

[0063] This embodiment features a spray nozzle 11 on the cover 1, utilizing a cyclone groove to accelerate liquid flow and atomize it for spraying. The structure is simple and reliable, eliminating the need for traditional atomizing parts. The spray structure is integrated with the cover 1, reducing the number of sprayer components and avoiding the defects of traditional atomizing parts, such as leakage and the risk of detachment, making the sprayer safer to use. Furthermore, the cyclone-type spray nozzle 11 of this embodiment can also be found in existing technology.

[0064] See Figure 2 , Figure 3 and Figure 6 To better ensure an interference fit between the inner cavity of the cover 1 and the inner cover 2, the inner diameter of the portion of the inner wall of the cover 1 that mates with the inner cover 2 is slightly larger in this embodiment. This makes the assembly with the inner cover 2 more stable. The interference fit is used to fix the two together, resulting in a simple structure. Furthermore, to further improve the sealing between the inner cover 2 and the inner wall of the cover 1, a second protrusion 101 can be provided at the lower end of the portion of the inner wall of the cover 1 that mates with the inner cover 2. This second protrusion 101 should be located below the spray nozzle 11. In this embodiment, the second protrusion 101...

[0065] See Figure 2 , Figure 3 and Figure 5 The storage cavity 7 is provided with an axially extending central tube 502, and the liquid inlet channel 9 is disposed in the central tube 502, which is located in the through groove 8. The liquid inlet channel 9 includes a first liquid inlet section 901, an enlarged section 903, and a second liquid inlet section 902 arranged sequentially along the liquid outflow direction; the inner diameter of the enlarged section 903 is larger than that of the second liquid inlet section 902. The middle section of the central rod 308 is provided with a radially outward protruding sealing part 309, which is adapted to the inner diameter of the second liquid inlet section 902 and can seal the liquid inlet channel 9. The sealing part 309 is smaller than the inner diameter of the enlarged section 903 to allow the liquid inlet channel 9 to be opened.

[0066] Furthermore, to facilitate the entry of the sealing part 309 on the central rod 308 into the second inlet section 902 of the inlet channel 9, a chamfer or rounded corner can be provided at the end of the inlet channel 9. When the pressing cap 1 drives the piston 3 to move towards the card seat 5 against the elastic force of the elastic element 4, the central rod 308 moves towards the bottle body relative to the inlet channel 9. The sealing part 309 first enters the second inlet channel 9 and seals it. When the central rod 308 continues to move and the sealing part 309 moves to the enlarged section 903, the inlet channel 9 is no longer sealed, and the inlet channel 9 opens.

[0067] This embodiment achieves both sealing and opening of the liquid inlet channel 9 by providing a sealing part 309 on the central rod 308 and combining it with the enlarged section 903 of the liquid inlet channel 9. The structure is simple, especially simplifying the structure of the central rod 308, which also reduces the manufacturing difficulty of the central rod 308. It is only necessary to ensure that the sealing part 309 can seal the second liquid inlet section 902 and is smaller than the enlarged section 903. The dimensional requirements of other positions of the central rod 308 are reduced.

[0068] To achieve the engagement between the piston 3 and the inlet channel 9 during the downward pressing process, other implementation methods can be adopted besides the above-mentioned methods. For example, radially protruding ribs can be provided on the central rod 308. The central rod 308 is configured as a first segment with a smaller diameter and a second segment with a larger diameter, with the first segment located below the second segment and the ribs set on the second segment. The inlet channel 9 can be configured as a constant diameter, with a sealing protrusion at the upper end of the inlet channel 9. In this way, during the downward movement of the central rod 308, the second segment forms a sealing engagement with the sealing protrusion of the inlet channel 9. As it continues to move downward, the ribs open the port of the inlet channel 9, thereby opening the inlet channel 9. This method also achieves the same effect of the central rod 308 sealing the inlet channel 9 first and then opening it during the pressing process. This implementation method can be found in the prior art, such as the prior art with application publication number CN117508909A and authorization announcement number CN219334624U.

[0069] See Figure 2 , Figure 3 and Figure 5 A protective cylinder 503 is provided on the side of the card holder 5 facing the cover 1. The protective cylinder 503 is located on the outside of the wall of the storage cavity 7, and a limiting cavity 14 is formed between the protective cylinder 503 and the wall of the storage cavity 7. The elastic element 4 includes a spring, which is sleeved outside the wall of the storage cavity 7 and located in the limiting cavity 14. One end of the spring acts on the plug 301, and the other end acts on the bottom of the limiting cavity 14. The cover 1 is sleeved outside the protective cylinder 503, and a limiting structure is provided between the cover 1 and the protective cylinder 503 to prevent the cover 1 from falling out.

[0070] The limiting structure of this embodiment includes a first step 102 and a second step 504. The first step 102 is disposed on the inner wall of the cover 1, and the second step 504 is disposed on the outer wall of the protective cylinder 503. The first step 102 and the second step 504 are correspondingly matched and their cooperation can prevent the cover 1 from coming off during elastic reset.

[0071] Furthermore, the card holder 5 is provided with a third step 505, which is located outside the protective cylinder 503 and corresponds to the end of the cover 1 facing the card holder 5. In this embodiment, the third step 505 restricts the movement stroke of the cover 1, thereby also restricting the pressing stroke of the entire sprayer.

[0072] Furthermore, the side of the card holder 5 facing away from the cap 1 is provided with a mounting cavity 10 for assembly with the bottle mouth of the bottle body; the mounting cavity 10 is provided with a mounting post 506, and the mounting post 506 is provided with a mounting groove 13 communicating with the liquid inlet channel 9, and the liquid outlet pipe 6 is assembled in the mounting groove 13. In this embodiment, a transition channel 12 is provided between the mounting groove 13 and the liquid inlet channel 9, and the transition channel 12 is smaller than both the first liquid outlet section and the mounting groove 13. The liquid outlet pipe 6 is inserted into the mounting groove 13 and extends axially into the bottle body, so that after the sprayer of this embodiment is assembled with the bottle body, the liquid in the bottle body can be discharged by the liquid outlet pipe 6.

[0073] To facilitate better assembly with the bottle neck, the mounting cavity 10 in this embodiment is further provided with an inner sealing ring 507, which is located outside the mounting post 506. Simultaneously, an annular buckle 501 is provided on the inner wall of the mounting cavity 10, which engages with the inner sealing ring 507 to achieve assembly, fixation, and sealing with the bottle body. Furthermore, the assembly and sealing methods of the card holder 5 with the bottle body in this embodiment can also be found in existing technologies.

[0074] See Figures 1-7 The working principle of the improved sprayer in this embodiment is as follows:

[0075] When the cap 1 is pressed for the first time, the cap 1, inner cap 2, and piston 3 move downwards. Piston 3 compresses the elastic element 4, and the central rod 308 moves downwards in the liquid inlet channel 9. In this initial state, the air pressure inside the sprayer is insufficient to break the seal between the boss 305 and the outlet hole 202. Therefore, when the sealing part 309 on the central rod 308 moves down to the enlarged section 903 of the liquid inlet channel 9, the liquid inlet channel 9 is opened, and the air inside the sprayer is forced into the bottle. When the cap 1 is released, the cap 1, inner cap 2, and piston 3 move upwards to reset under the elastic force of the elastic element 4, making the space of the storage chamber 7 and the through groove 8 larger and the pressure smaller. After the sealing part 309 of the central rod 308 moves upwards away from the second liquid inlet section 902, causing the liquid inlet channel 9 to open again, the liquid inside the bottle flows into the through groove 8 and the storage chamber 7 under pressure through the liquid inlet channel 9.

[0076] When the cap 1 is pressed again, the movement of each component is similar to the process described above. The liquid in the storage chamber 7 is compressed, resulting in a significant increase in pressure. This pressure is sufficient to force the liquid out of the seal between the boss 305 and the outlet hole 202. After passing through the guide groove 203, the guide gap 15, and the cyclone groove, the liquid forms a mist and is sprayed out through the spray hole 1101. Simultaneously, when the sealing part 309 of the central rod 308 reaches the enlarged section 903 and opens the liquid inlet channel 9, the liquid in the bottle re-enters the through groove 8 and the storage chamber 7. Repeating this pressing process achieves the atomized spraying of the liquid.

[0077] This embodiment also discloses a spray bottle, which includes the aforementioned improved sprayer and a bottle body. The improved sprayer is assembled and fixed to the bottle opening of the bottle body. Different liquids can be loaded into the bottle body to achieve atomized spraying, such as perfume, alcohol, etc.

[0078] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An improved sprayer, characterized in that, Includes the cover, piston, holder, and elastic element; The card holder has a storage cavity with an opening facing the cap side, and the storage cavity has a liquid inlet channel communicating with the bottle body; the piston includes a plug body and a central rod coaxial with the liquid inlet channel; the plug body has a through groove at its axis, the central rod is disposed in the through groove and the through groove remains open; the plug body can slide axially in the storage cavity and the plug body dynamically seals with the inner wall of the storage cavity; the elastic element is disposed between the plug body and the card holder for the elastic reset of the piston; when the central rod moves towards the bottle body side in the liquid inlet channel, the central rod first seals the liquid inlet channel and then opens the liquid inlet channel; The side of the cover is provided with a spray nozzle; an inner cover is fixedly provided in the inner cavity of the cover, and a liquid outlet groove communicating with the spray nozzle is provided between the inner cover and the cover, and a liquid outlet hole communicating with the liquid outlet groove is provided on the end face of the inner cover. The plug body has a boss on its end face near the cover, and the boss is sealed to the liquid outlet hole; the plug body is dynamically sealed to the inner wall of the inner cover.

2. The improved sprayer according to claim 1, characterized in that, The boss is shaped like a frustum, with the larger end connected to the plug and the smaller end sealingly fitted to the liquid outlet in its natural state.

3. The improved sprayer according to claim 1, characterized in that, A sealing ring is connected to the outer wall of the plug near the end of the cover, and the sealing ring dynamically seals with the inner wall of the inner cover; one end of the elastic element acts on the end face of the sealing ring facing the card seat, and the other end of the elastic element acts on the card seat.

4. The improved sprayer according to claim 3, characterized in that, The sealing ring has an annular groove on the side facing the inner cover; the inner cavity end face of the inner cover has a positioning ring; the positioning ring is located in the annular groove.

5. The improved sprayer according to claim 1, characterized in that, The central rod and the through groove are provided with several connecting parts near the cover, and hollow holes are provided between the several connecting parts; the boss is coaxial with the central rod.

6. The improved sprayer according to claim 1, characterized in that, A flow guiding gap is left between the inner cavity end face edge of the press cover and the inner cover, and the flow guiding gap is connected to the spray nozzle; the end face of the inner cover is provided with a plurality of flow guiding grooves, one end of each flow guiding groove is connected to the liquid outlet hole, and the other end of each flow guiding groove extends radially and is connected to the flow guiding gap; all the flow guiding grooves and the flow guiding gap form the liquid outlet groove.

7. The improved sprayer according to any one of claims 1-6, characterized in that, The spray nozzle includes a spray hole and a cyclone groove, the cyclone groove being disposed on the inner wall of the cover; the cyclone groove includes a circular groove communicating with the spray hole, and a centrally symmetrical inclined channel, a transverse channel and a vertical channel are respectively disposed on both sides of the circular groove, the vertical channel, the transverse channel, the inclined channel and the circular groove being sequentially connected; the vertical channel is connected to the liquid outlet groove.

8. The improved sprayer according to any one of claims 1-6, characterized in that, The inner cavity of the press cover and the inner cover are interference-fitted.

9. The improved sprayer according to claim 8, characterized in that, The inner wall of the cover is provided with a second protrusion, which is located below the spray nozzle and is sealed to the outer wall of the inner cover.

10. The improved sprayer according to any one of claims 1-6, characterized in that, The storage cavity is provided with an axially extending central tube, the liquid inlet channel is disposed in the central tube, and the central tube is located in the through groove.

11. The improved sprayer according to claim 10, characterized in that, The liquid inlet channel includes a first liquid inlet section, an enlargement section, and a second liquid inlet section arranged sequentially along the liquid outflow direction; the inner diameter of the enlargement section is larger than that of the second liquid inlet section. The central rod has a radially outward protruding sealing part in the middle section. The sealing part is adapted to the inner diameter of the second liquid inlet section and can seal the liquid inlet channel. The sealing part is smaller than the inner diameter of the enlarged section to enable the liquid inlet channel to be opened.

12. The improved sprayer according to claim 1 or 3, characterized in that, The card holder is provided with a protective cylinder on the side facing the cover. The protective cylinder is located on the outside of the wall of the storage cavity, and a limiting cavity is formed between the protective cylinder and the wall of the storage cavity. The elastic element includes a spring, which is sleeved on the outside of the wall of the storage cavity and located in the limiting cavity. One end of the spring acts on the plug and the other end acts on the bottom of the limiting cavity. The cover is fitted over the protective cylinder, and a limiting structure is provided between the cover and the protective cylinder to prevent the cover from coming off.

13. The improved sprayer according to claim 12, characterized in that, The card holder has a third step, which is located outside the protective cylinder and corresponds to the end of the button cover facing the card holder.

14. The improved sprayer according to claim 1, characterized in that, The card holder has a mounting cavity on the side facing away from the cap for assembling with the bottle mouth of the bottle body; the mounting cavity has a mounting post, the mounting post has a mounting groove communicating with the liquid inlet channel, and the mounting groove is equipped with a liquid outlet pipe.

15. A spray bottle, characterized in that, The invention includes the improved sprayer and bottle body as described in any one of claims 1-14, wherein the improved sprayer is assembled and fixed to the bottle mouth of the bottle body.

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