Improved sprayer and spray bottle

Abstract

The invention belongs to the technical field of spraying equipment, and provides an improved sprayer and a spraying bottle. 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 improvement of the atomization effect.

Description

Technical Field

[0001] The present invention belongs to spray equipment, and particularly relates to an improved sprayer and a spray bottle. Background Art

[0002] At present, the structure of the pressing atomizer on the market is complex and has many components. Generally, it includes components such as a pump body, a piston, atomizing points, a spring, and steel balls. There are problems such as complex production and assembly processes and high consumption of consumables. To solve this problem, there are pressing atomizers or atomizing pumps with only a small number of components in the prior art, but they have defects such as insufficient sealing performance and weak atomizing spray explosive force. Summary of the Invention

[0003] In order to overcome the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide an improved sprayer with good sealing performance, which can effectively prevent liquid leakage, and has good explosive force, which is beneficial to improving the atomizing effect.

[0004] Another object of the present invention is to provide a spray bottle including the above-mentioned improved sprayer.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0006] An improved sprayer includes a pressing cap, a piston, a clamping seat, and an elastic element;

[0007] The clamping seat is provided with a storage cavity with an opening facing the pressing cap side, and a liquid inlet channel communicating with the bottle body is arranged in the storage cavity; the piston includes a plug body and a central rod coaxial with the liquid inlet channel; a through groove is arranged at the axis of the plug body, the central rod is arranged in the through groove and the through groove remains unobstructed; the plug body can axially slide in the storage cavity and the plug body is dynamically sealed with the inner wall of the storage cavity, and the elastic element is arranged between the plug body and the clamping seat for 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] A spray port is arranged on the side surface of the pressing cap; an inner cap is fixedly arranged in the inner cavity of the pressing cap, an outlet groove communicating with the spray port is arranged between the inner cap and the pressing cap, and an outlet hole communicating with the outlet groove is arranged on the end surface of the inner cap;

[0009] A convex platform is arranged on the end surface of the plug body close to the pressing cap, and the convex platform is in sealing cooperation with the outlet hole; the plug body is dynamically sealed with the inner wall of the inner cap.

[0010] In a preferred embodiment of the present invention, the convex platform is in the shape of a frustum of a cone, and the larger end is connected to the plug body, and the smaller end is in sealing cooperation with the outlet hole in the natural state.

[0011] In a preferred embodiment of the present invention, a sealing ring is connected to the outer wall of one end of the plug body close to the pressing cover, and the sealing ring is in dynamic sealing 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, an annular groove is provided on the surface of the sealing ring facing the inner cover; a positioning ring is provided on the inner cavity end face of the inner cover; the positioning ring is located in the annular groove.

[0013] In a preferred embodiment of the present invention, a plurality of connecting parts are provided between the central rod and the through groove close to the pressing 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 the present invention, a flow guiding gap is left between the edge of the inner cavity end face of the pressing cover and the inner cover, and the flow guiding gap is communicated with the spray port; a plurality of flow guiding grooves are provided on the end face of the inner cover, one end of each flow guiding groove is communicated with the liquid outlet hole, and the other end of each flow guiding groove extends radially and is communicated with 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 the present invention, the spray port includes a spray hole and a cyclone groove, and the cyclone groove is arranged on the inner wall of the pressing cover; the cyclone groove includes a circular groove communicated with the spray hole, and symmetrically inclined channels, transverse channels and vertical channels are respectively arranged on both sides of the circular groove, and the vertical channel, the transverse channel, the inclined channel and the circular groove are communicated in sequence; the vertical channel is communicated with the liquid outlet groove.

[0016] In a preferred embodiment of the present invention, an interference fit is provided between the inner cavity of the pressing cover and the inner cover.

[0017] Preferably, a second convex part is provided on the inner wall of the pressing cover, the second convex part is located below the spray port, and the second convex part is in sealing cooperation with the outer wall of the inner cover.

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

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

[0020] A sealing portion that protrudes radially outward is provided in the middle section of the central rod. The sealing portion is adapted to the inner diameter of the second liquid inlet section and can seal the liquid outlet channel. The diameter of the sealing portion is smaller than that of the enlarged section to open the liquid outlet channel.

[0021] In a preferred embodiment of the present invention, a protective cylinder is provided on the side of the card seat facing the pressing cover. The protective cylinder is located outside 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 outside the wall of the storage cavity and is located in the limiting cavity, with one end acting on the plug body and the other end acting on the bottom of the limiting cavity.

[0022] The pressing cover is sleeved outside the protective cylinder, and a limiting structure for restricting the pressing cover from coming off is provided between the pressing cover and the protective cylinder.

[0023] Preferably, the card seat is provided with a third step. The third step is located outside the protective cylinder and corresponds to the end of the pressing cover facing the card seat. The third step in this embodiment forms a limit on the moving stroke of the pressing cover, and thus also forms a limit on the pressing stroke of the entire sprayer.

[0024] In a preferred embodiment of the present invention, an installation cavity for assembling with the bottle mouth of the bottle body is provided on the side of the card seat facing away from the pressing cover. An installation post is provided in the installation cavity, and an installation groove communicating with the liquid outlet channel is provided in the installation post. A liquid outlet pipe is assembled in the installation groove.

[0025] A spray bottle includes the improved sprayer and the bottle body, and the improved sprayer is assembled and fixed with the bottle mouth of the bottle body.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] The improved sprayer of the present invention has fewer parts, and the overall structure has only six parts, which simplifies the assembly process and reduces costs. In addition, by providing an inner cover in the pressing cover and using the liquid outlet hole on the inner cover to be in sealing cooperation with the convex platform on the plug body, the sealing effect between the pressing cover and the plug body is effectively improved. Moreover, especially compared with the traditional technology, the improved sprayer of the present invention adopts the cooperation of the convex platform and the liquid outlet hole at the key sealing position, so that the sealing structure is appropriately reduced, and it is easier to obtain a reliable and maintainable sealing effect during use, and the liquid is not likely to seep from the plug body through groove to the spray port. While the sealing effect is improved, the pressure required to break the seal between the convex platform and the liquid outlet hole by the liquid is also greater, so that the overall explosive force of the sprayer is improved, and the liquid atomization spraying effect is also better. Description of the Drawings

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 Is a three-dimensional exploded view of the improved sprayer of the present invention.

[0030] Figure 2 Is the first cross-sectional view of the improved sprayer of the present invention.

[0031] Figure 3 Is the second cross-sectional view of the improved sprayer of the present invention.

[0032] Figure 4 Is Figure 1 The three-dimensional view of the piston in

[0033] Figure 5 Is Figure 1 The cross-sectional view of the card seat in

[0034] Figure 6 Is Figure 1 The cross-sectional view of the pressing cover in

[0035] Figure 7 Is Figure 1 The three-dimensional view of the inner cover in

[0036] Wherein:

[0037] 1 - Pressing cover, 101 - Second convex part, 102 - First step, 103 - Spherical groove;

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

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

[0040] 4 - Elastic element;

[0041] 5 - Card seat, 501 - Annular buckle, 502 - Central tube, 503 - Protection cylinder, 504 - Second step, 505 - Third step, 506 - Mounting post, 507 - Inner sealing ring;

[0042] 6 - Liquid outlet pipe;

[0043] 7 - Storage cavity;

[0044] 8 - Through groove;

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

[0046] 10 - Installation cavity;

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

[0048] 12 - Transition channel;

[0049] 13 - Installation groove;

[0050] 14 - Limiting cavity,

[0051] 15 - Diversion gap. Detailed implementation manners

[0052] In order to more clearly understand the above - mentioned objects, features and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the implementation manners and features in the embodiments of the present application can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The described implementation manners are only a part of the implementation manners of the present invention, rather than all of the implementation manners. Based on the implementation manners in the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific implementation manners, and are not intended to limit the present invention.

[0054] Example 1

[0055] See Figures 1-7, this embodiment discloses an improved sprayer, which includes a pressing cap 1, a piston 3, a clamping seat 5 and an elastic element 4. Among them, the clamping seat 5 is provided with a storage cavity 7 with an opening facing one side of the pressing cap 1, and a liquid inlet channel 9 communicating with the bottle body is arranged in the storage cavity 7; the piston 3 includes a plug body 301 and a central rod 308 coaxial with the liquid inlet channel 9; a through groove 8 is arranged at the axis of the plug body 301, the central rod 308 is arranged in the through groove 8 and the through groove 8 remains unobstructed; the plug body 301 can slide axially in the storage cavity 7 and the plug body 301 is dynamically sealed with the inner wall of the storage cavity 7, and the elastic element 4 is arranged between the plug body 301 and the clamping seat 5 for elastic reset of the piston 3; when the central rod 308 moves towards the bottle body side in the liquid inlet channel 9, the central rod 308 first seals the liquid inlet channel 9 and then opens the liquid inlet channel 9.

[0056] Furthermore, a spray port 11 is arranged on the side surface of the pressing cap 1 in this embodiment. An inner cap 2 is fixedly arranged in the inner cavity of the pressing cap 1, and the inner cap 2 is fixedly connected to the pressing cap 1, which can be fixed by an interference fit method. A liquid outlet groove communicating with the spray port 11 is arranged between the inner cap 2 and the pressing cap 1. Specifically, the liquid outlet groove in this embodiment can be formed in the following way. A diversion gap 15 is left between the edge of the inner cavity end surface of the pressing cap 1 and the inner cap 2, and the diversion gap 15 communicates with the spray port 11; a plurality of diversion grooves 203 are arranged on the end surface of the inner cap 2, and a liquid outlet hole 202 penetrating the inner cap 2 is also arranged on the inner cap 2. One end of each diversion groove 203 communicates with the liquid outlet hole 202, and the other end of each diversion groove 203 extends radially and communicates with the diversion gap 15; all the diversion grooves 203 and the diversion gap 15 form the liquid outlet groove. At the same time, a convex platform 305 is arranged on the end surface of the plug body 301 close to the pressing cap 1, and the convex platform 305 is in sealing fit with the liquid outlet hole 202; the plug body 301 is dynamically sealed with the inner wall of the inner cap 2.

[0057] As one of the implementation manners, the convex platform 305 is arranged in a frustum shape, and the larger end is connected to the plug body 301, and the smaller end is in sealing fit with the liquid outlet hole 202 in the natural state. Arranging the convex platform 305 in a frustum shape can form a more effective sealing effect with the liquid outlet hole 202. Especially under the action of the elastic force of the elastic element 4, the convex platform 305 can be more effectively pressed against the liquid outlet hole 202, the sealing effect is improved, and liquid leakage through the gap between the two is effectively prevented. The significant improvement of the sealing effect also makes the explosion force of the liquid ejection stronger when pressing the pressing cap 1 for spraying, and the liquid atomization effect is better. In addition, since the convex platform 305 in this embodiment is in a frustum shape, there is still a liquid outlet gap between the inner cap 2 and the top of the plug body 301 when the convex platform 305 and the liquid outlet hole 202 are in a sealed state, so that the liquid can better form sufficient pressure at the liquid outlet gap after flowing out of the through groove 8, thereby breaking the seal between the convex platform 305 and the liquid outlet hole 202, and finally reaching the liquid outlet groove and the spray port 11 and atomizing and spraying out.

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

[0059] A sealing ring 302 is connected to the outer wall of one end of the plug body 301 close to the pressing cover 1, and the sealing ring 302 is dynamically sealed 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 the dynamic sealing between the outer wall of the sealing ring 302 and the inner cover 2, a first protruding portion 303 is provided on the outer wall of the sealing ring 302 in this embodiment, and the dynamic sealing effect is formed by the extrusion of the first protruding portion 303 and the inner wall of the inner cover 2. Of course, a protruding portion 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 , a circular groove 304 is provided on the side of the sealing ring 302 facing the inner cover 2 in this embodiment; a positioning ring 201 is provided on the inner cavity end face of the inner cover 2; the positioning ring 201 is located in the circular groove 304. The circular groove 304 and the positioning ring 201 in this embodiment are both provided with inclined surfaces, which facilitate the formation of guiding and positioning when the piston 3 and the inner cover 2 are assembled, and are beneficial to improving the assembly accuracy.

[0061] See Figures 2-4 , there are a number of connecting portions 307 between the central rod 308 and the through groove 8 close to the pressing cover 1, and a hollow hole 306 is provided between the number of connecting portions 307; the boss 305 is coaxial with the central rod 308. Specifically, the connecting portions 307 between the central rod 308 and the end of the through groove 8 in this embodiment are evenly distributed along the circumferential direction, so that the hollow holes 306 are also evenly distributed, which is beneficial to the uniform outflow of the liquid. And setting the boss 305 coaxial with the central rod 308 is beneficial to generating a strong and concentrated pressure on the boss 305 and the liquid outlet hole 202 more accurately after the liquid flows out of the through groove 8. Combining with the boss 305 being in the shape of a conical table structure, the liquid has more explosive power when spraying out through the gap between the boss 305 and the liquid outlet hole 202.

[0062] See Figure 2 , Figure 3 and Figure 6, the spray opening 11 includes a spray hole 1101 and a cyclone groove, and the cyclone groove is arranged on the inner wall of the pressing cover 1; the cyclone groove includes a circular groove 1102 communicating with the spray hole 1101, and on both sides of the circular groove 1102, there are respectively arranged a centrally symmetric inclined channel 1103, a transverse channel 1104 and a vertical channel 1105, and the vertical channel 1105, the transverse channel 1104, the inclined channel 1103 and the circular groove 1102 are communicated in sequence. The vertical channel 1105 among them is communicated with the liquid outlet groove, specifically with the diversion gap 15. The included angle between the inclined channel 1103 of this embodiment and the vertical axis of the circular groove 1102 is preferably set to 30 - 60°. In order to better adapt to the spray opening 11, a spherical groove 108 is provided at the corresponding position on the outer wall of the pressing cover 1 of this embodiment.

[0063] In this embodiment, such a spray opening 11 is arranged on the pressing cover 1. By using the cyclone groove, the liquid is accelerated to flow and atomized and ejected. The structure is simple and reliable, and the traditional mist point parts are omitted. The spray structure and the pressing cover 1 are integrated into one, reducing the parts of the sprayer, and avoiding the defects of liquid leakage and the risk of flying off at the traditional mist point parts, making the sprayer safer to use. In addition, the cyclone spray opening 11 of this embodiment can also refer to the prior art.

[0064] See Figure 2 , Figure 3 and Figure 6 , to better ensure the interference fit between the inner cavity of the pressing cover 1 and the inner cover 2, the inner diameter of the part of the inner cavity side wall of the pressing cover 1 that cooperates with the inner cover 2 is slightly larger, making it more stable after being assembled with the inner cover 2, and realizing the fixation of the two by means of interference fit, with a simple structure. In addition, to further improve the sealing performance between the inner cover 2 and the inner wall of the pressing cover 1, a second protrusion 101 can also be provided at the lower end of the part of the inner cavity side wall of the pressing cover 1 that cooperates with the inner cover 2. The second protrusion 101 should be located below the spray opening 11. The second protrusion 101 in this embodiment.

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

[0066] Furthermore, in order to facilitate the sealing portion 309 on the central rod 308 to enter the second liquid inlet section 902 of the liquid outlet channel, a chamfer or rounded corner may be provided at the end of the liquid outlet channel. When the pressing cover 1 drives the piston 3 to overcome the elastic force of the elastic element 4 and move toward the side of the holder 5, the central rod 308 moves toward the bottle body relative to the liquid outlet channel, and the sealing portion 309 first enters the second liquid outlet channel and seals it. When the central rod 308 continues to move and when the sealing portion 309 moves to the expansion section 903, the liquid outlet channel is no longer sealed and is opened.

[0067] In this embodiment, a sealing section is provided on the center rod 308, which is combined with the expansion section 903 of the liquid outlet channel to achieve sealing and opening of the liquid outlet channel. The structure is simple, especially the structure of the center rod 308 is simplified, and the production difficulty of the center rod 308 is reduced. It is only necessary to ensure that the sealing part 309 can seal the second liquid outlet channel and is smaller than the expansion section 903. The requirements for other position dimensions of the center rod 308 are reduced.

[0068] In order to achieve the cooperation between the piston 3 and the liquid outlet channel during the downward pressing process, in addition to the above methods, other implementation methods can also be adopted. For example, radially protruding ribs can be set on the center rod 308, and the center rod 308 is set to a first section with a smaller diameter and a second section with a larger diameter. The first section is located below the second section, and the ribs are set on the second section. The liquid outlet channel can be set to be equal in diameter, and a sealing protrusion is set at the upper end of the liquid outlet channel. In this way, during the downward movement of the center rod 308, the second section forms a sealing cooperation with the sealing protrusion of the liquid outlet channel, and when it continues to move downward, the liquid outlet channel port is opened by the ribs, thereby opening the liquid outlet channel. This method also achieves that during the downward pressing process, the center rod 308 first seals the liquid outlet channel and then opens the liquid outlet channel. This implementation method can refer to the prior art, such as the prior art with application publication number CN117508909A and authorization announcement number CN219334624U.

[0069] See also Figure 2 , Figure 3 and Figure 5 The side of the card seat 5 facing the push cover 1 is provided with a protective tube 503, which is located outside the wall of the storage chamber 7, and a limiting cavity 14 is formed between the protective tube 503 and the wall of the storage chamber 7; the elastic element 4 includes a spring, which is sleeved outside the wall of the storage chamber 7 and is located in the limiting cavity 14, and one end of the spring acts on the plug body 301, and the other end acts on the bottom of the limiting cavity 14. The push cover 1 is sleeved outside the protective tube 503, and a limiting structure for limiting the push cover 1 from falling out is provided between the push cover 1 and the protective tube 503.

[0070] The limiting structure of this embodiment includes a first step 102 and a second step 504. The first step 102 is arranged on the inner wall of the pressing cover 1, and the second step 504 is arranged on the outer wall of the protection cylinder 503. The first step 102 and the second step 504 are correspondingly adapted to each other, and their cooperation can prevent the pressing cover 1 from coming off during elastic resetting.

[0071] Further, the card seat 5 is provided with a third step 505. The third step 505 is located outside the protection cylinder 503 and corresponds to the end of the pressing cover 1 facing the card seat 5. The third step 505 of this embodiment forms a limit on the moving stroke of the pressing cover 1, and thus also forms a limit on the pressing stroke of the entire sprayer.

[0072] Further, a mounting cavity 10 for assembling with the bottle mouth of the bottle body is provided on the side of the card seat 5 facing away from the pressing cover 1; a mounting post 506 is provided in the mounting cavity 10, a mounting groove 13 communicating with the liquid outlet channel is provided in the mounting post 506, and a 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 outlet channel, 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 is discharged by using the liquid outlet pipe 6.

[0073] To better assemble with the bottle mouth of the bottle body, an inner sealing ring 507 is further provided in the mounting cavity 10 of this embodiment, and the inner sealing ring 507 is arranged outside the mounting post 506. At the same time, an annular buckle 501 is provided on the inner wall of the mounting cavity 10, and the annular buckle 501 and the inner sealing ring 507 are used to realize the assembly fixation and sealing with the bottle body. In addition, the assembly method and sealing method of the card seat 5 and the bottle body in this embodiment can also refer to the prior art.

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

[0075] When the pressing cover 1 is pressed for the first time, the pressing cover 1, the inner cover 2, and the piston 3 move downward, the piston 3 compresses the elastic element 4, and the central rod 308 moves downward in the liquid outlet channel; thus, the air pressure in the sprayer in the initial state is not sufficient to break through the seal between the convex platform 305 and the liquid outlet hole 202. Therefore, when the sealing portion 309 on the central rod 308 moves down to the enlarged section 903 of the liquid outlet channel, the liquid outlet channel is opened, and the air in the sprayer is pressed into the bottle body. When the pressing cover 1 is released and moves upward and resets under the elastic force of the elastic element 4, the space of the storage cavity 7 and the through groove 8 becomes larger and the pressure becomes smaller. After the sealing portion 309 of the central rod 308 moves upward to leave the second liquid outlet section and the liquid outlet channel is opened again, the liquid in the bottle body flows into the through groove 8 and the storage cavity 7 under the action of the pressure.

[0076] When the pressing cover 1 is pressed again, the movement process of each component is similar to the above process. When the liquid in the storage cavity 7 is compressed, the pressure increases significantly, and there is enough pressure to break through the seal between the boss 305 and the liquid outlet hole 202, and after passing through the diversion groove 203, the diversion gap 15 and the cyclone groove, it forms a mist-like liquid and is sprayed out through the spray hole 1101. At the same time, when the sealing part 309 of the central rod 308 reaches the enlarged section 903 and opens the liquid outlet channel, the liquid in the bottle body enters the through groove 8 and the storage cavity 7 again. By repeating the pressing in this way, the atomized spraying of the liquid can be achieved.

[0077] This embodiment also discloses a spray bottle, which includes the above improved sprayer and a bottle body. The improved sprayer is assembled and fixed to the bottle mouth of the bottle body. Different liquids can be loaded in the bottle body to achieve atomized spraying. For example, perfume, alcohol, etc. can be loaded.

[0078] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An improved sprayer, characterized in that: It includes a button cover, a piston, a card seat and an elastic element; The holder is provided with a storage cavity with an opening toward one side of the push cover, and a liquid inlet channel connected to the bottle body is provided in the storage cavity; the piston comprises a plug body and a center rod coaxial with the liquid inlet channel; the plug body is provided with a through groove at the axis, the center rod is arranged in the through groove and the through groove remains through; the plug body can be axially slidably arranged in the storage cavity and the plug body is dynamically sealed with the inner wall of the storage cavity, and the elastic element is arranged between the plug body and the holder for elastic reset of the piston; when the center rod moves toward the bottle body side in the liquid inlet channel, the center rod first seals the liquid inlet channel and then opens the liquid inlet channel; The side of the push cover is provided with a spray port; the inner cavity of the push cover is fixedly provided with an inner cover, a liquid outlet groove connected to the spray port is provided between the inner cover and the push cover, and the end surface of the inner cover is provided with a liquid outlet hole connected to the liquid outlet groove; The end surface of the plug body close to the push cover is provided with a boss, and the boss is sealed with the liquid outlet; the plug body is dynamically sealed with the inner wall of the inner cover.

2. The improved sprayer according to claim 1, characterized in that: The boss is in the shape of a frustum, and the larger end is connected to the plug body, and the smaller end is sealed and matched with the liquid outlet in a 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 body near the push cover, and the sealing ring is dynamically sealed 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 is provided with an annular groove on one side facing the inner cover; the inner cavity end surface of the inner cover is provided with a positioning ring; the positioning ring is located in the annular groove.

5. The improved sprayer according to claim 1, characterized in that: A plurality of connecting parts are arranged between the central rod and the through slot near the pressing cover, and hollow holes are arranged between the connecting parts; and the boss is coaxial with the central rod.

6. The improved sprayer according to claim 1, characterized in that: A guide gap is left between the edge of the inner cavity end surface of the push cover and the inner cover, and the guide gap is connected to the spray port; a plurality of guide grooves are provided on the end surface of the inner cover, one end of each guide groove is connected to the liquid outlet, and the other end of each guide groove extends radially and is connected to the guide gap; all the guide grooves and the guide gaps form the liquid outlet groove.

7. The improved sprayer according to any one of claims 1 to 6, characterized in that: The spray port includes a spray hole and a cyclone groove, and the cyclone groove is arranged on the inner wall of the press cover; the cyclone groove includes a circular groove connected to the spray hole, and a centrally symmetrical inclined channel, a transverse channel and a vertical channel are respectively arranged on both sides of the circular groove, and the vertical channel, the transverse channel, the inclined channel and the circular groove are connected in sequence; the vertical channel is connected to the liquid outlet groove.

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

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

10. The improved sprayer according to any one of claims 1 to 6, characterized in that: An axially extending central tube is provided in the storage cavity, the liquid outlet channel is arranged 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 outlet channel comprises a first liquid inlet section, an expansion section and a second liquid inlet section which are sequentially arranged along the liquid outflow direction; the inner diameter of the expansion section is larger than that of the second liquid inlet section; The middle section of the central rod is provided with a sealing portion protruding radially outward, which is adapted to the inner diameter of the second liquid inlet section and can seal the liquid outlet channel. The sealing portion is smaller than the inner diameter of the expansion section to achieve the opening of the liquid outlet channel.

12. The improved sprayer according to claim 1 or 3, characterized in that: A protective tube is provided on one side of the card seat facing the push cover, and the protective tube is located outside the wall of the storage cavity, and a limiting cavity is formed between the protective tube and the wall of the storage cavity; the elastic element includes a spring, which is sleeved outside the wall of the storage cavity and located in the limiting cavity, and one end of the spring acts on the plug body, and the other end acts on the bottom of the limiting cavity; The push cover is sleeved outside the protection tube, and a limiting structure for limiting the push cover from falling out is provided between the push cover and the protection tube.

13. The improved sprayer according to claim 12, characterized in that: The card seat is provided with a third step, and the third step is located outside the protection tube and corresponds to the end of the push cover facing the card seat.

14. The improved sprayer according to claim 1, characterized in that: A mounting cavity for assembling with the bottle mouth of the bottle body is provided on a side of the holder facing away from the push cover; a mounting column is provided in the mounting cavity, a mounting groove communicating with the liquid outlet channel is provided in the mounting column, and a liquid outlet pipe is assembled in the mounting groove.

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

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