A nebulizer

Abstract

The utility model relates to a kind of sprayers, including cover shell, cover shell includes the shell of being equipped with at least one chamber, chamber includes the inlet chamber of being communicated with each other for liquid introduction, outlet chamber for liquid ejection and cylinder chamber, outlet chamber includes the first part being connected with the end of cylinder chamber and the second part being detachably connected with the first part, second part has the proximal end connected to the first part and the distal end away from the first part and is connected with the nozzle part for liquid ejection, shell has open end extending to distal end, and hinge has the wrench that makes the liquid in cylinder chamber from nozzle part ejects at proximal end adjacent distal end.The utility model's cover shell is integrated with inlet chamber, cylinder chamber and outlet chamber, cylinder chamber end is connected with the first part that guides liquid to flow out, cover shell replaces part structure in the main body of traditional sprayer, to strengthen the fixation and connection of cover shell and sprayer main body, even in transport process also not easy to occur from.

Description

Technical Field

[0001] This utility model relates to the field of spray equipment technology, specifically to a sprayer. Background Technology

[0002] A sprayer, as a liquid atomizing device, is currently widely used in garden products and household chemical cleaning products. Its working principle is as follows: by pulling a lever, a piston moves within the pump body. The gas flow within the pump body reduces the pressure inside, while the pressure outside remains constant. This creates a pressure difference between the inside and outside of the pump body, causing the liquid to flow out of the pump body. When the liquid encounters the high-speed airflow, it is instantly atomized and sprayed out.

[0003] Therefore, the conventional design of existing sprayers integrates the aforementioned functional components, such as the wrench, pump body, and water outlet channel for guiding liquid out of the pump body, onto the sprayer body. These functional components are then covered by a separate casing to improve the overall strength and aesthetics of the sprayer. Specific examples can be found in the casing structures disclosed in patent publications "CN222624942U", "CN308122389S", or "CN215235147U". These casing structures consist of only a hollow outer casing with a roughly inverted "L" shaped cross-section, and only one functional component—the connection structure—connects to the sprayer body. Consequently, many structural improvements to the connection structure have been made in existing patents. While these improvements strengthen the fixation and connection, they still cannot prevent the outer casing from detaching from the sprayer body during transportation. Therefore, further improvements are needed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sprayer that can avoid the phenomenon of the outer shell detaching from the sprayer body, especially during transportation, in light of the above-mentioned existing technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: The sprayer includes a housing, characterized in that: the housing includes a shell with at least one chamber, the chamber including an inlet chamber for liquid introduction, an outlet chamber for liquid spraying, and a cylinder chamber located between the inlet chamber and the outlet chamber, the three being in fluid communication; the outlet chamber includes a first part directly connected to the end of the cylinder chamber and a second part detachably connected to the first part; the second part has a proximal end connected to the first part and a distal end away from the first part and connected to a nozzle for liquid spraying; the housing has an open end extending to the distal end, and a wrench is hinged near the distal end to allow liquid in the cylinder chamber to be sprayed out from the nozzle.

[0006] To prevent dripping from the nozzle after spraying, preferably, the distal end of the second part is also provided with a sealing element. The sealing element includes a water outlet section, a sealing section, and an elastic section located between them. Correspondingly, the second part includes a water outlet pipe connected to the first part and a connecting pipe accommodating the sealing element. The sealing section can always seal the water outlet of the water outlet pipe when the elastic section is in its natural state. When the hydraulic pressure in the water outlet pipe reaches a preset pressure of the sealing section, the sealing section is forced to open, allowing liquid to flow through the water outlet section. The sealing element consists of a water outlet section, an elastic section, and a sealing section. The sealing section and the water outlet are provided with mutually cooperating inclined surfaces. When the hydraulic pressure in the water outlet pipe reaches the preset pressure, the sealing section can open, allowing liquid to flow out from the gap between the inclined surfaces of the sealing section and the water outlet, and then out through the water outlet section. The elastic section provides a restoring force to reset the sealing section.

[0007] To provide a more stable restoring force to the sealing segment, preferably, the elastic segment is a wave-shaped section located on both sides of the sealing segment with the same reverse shape. Designing the elastic segment to be located on both sides of the sealing segment allows for a more stable push to reset the sealing segment, while its wave-shaped design simulates the "shape of a spring" for better restoring force.

[0008] To achieve structural simplicity by enabling the nozzle to spray, spray water, or shut off when needed by the user, the water outlet section is preferably equipped with a connector. The two components together constitute the nozzle section. By adjusting the rotation angle of the connector relative to the water outlet section, the water outlet section can be in at least one of the following spray states: spraying or shut off. Alternatively, a mesh structure that can convert the spray state into a foam state is provided downstream of the water outlet section in the direction of liquid spraying.

[0009] Furthermore, the wall of the connecting tube extends radially outward to form an annular protrusion for sealing the open end. The annular protrusion has an insertion part facing the direction of the water outlet pipe. Correspondingly, the open end of the housing has a slot for the insertion part to be inserted. As mentioned above, since the housing is designed with an integrated structure of "inlet chamber and cylinder chamber", the open end of the housing is designed to facilitate the assembly of the first and second parts of the outlet chamber before leaving the factory. Therefore, the connecting tube corresponding to the second part has a dual function: firstly, the annular protrusion of the connecting tube can close the open end after assembly, and the housing can cover the various functional components, improving the overall aesthetics of the sprayer; secondly, the insertion part that can be inserted and connected to the housing is integrated on the annular protrusion of the connecting tube, which is more ingenious in terms of structural design.

[0010] To facilitate wrench installation, preferably, the water outlet pipe is equipped with a hinge seat, and the wrench is hinged to the hinge seat via a pin. Correspondingly, the open end of the housing is provided with a fixing part near the slot for fixing the pin. The liquid is ejected from the nozzle by pressing the piston back and forth with the wrench to pressurize the cylinder chamber. By providing a hinge seat on the water outlet pipe, the wrench can be easily hinged to it, allowing the user to perform the pressing action.

[0011] To facilitate the connection between the switching valve and the inlet tube, preferably, the inlet tube within the oral cavity is equipped with a switching valve, enabling the sprayer to operate in either an upright or inverted mode. The switching valve is mounted on a connecting member, which is detachably connected to and positioned at the upper end of the inlet tube. The connecting member includes a socket for insertion into the upper end of the inlet tube. Multiple interconnected cavities are formed between the oral cavity, the switching valve, and the connecting member. These cavities include a first cavity for air replenishment, a second cavity for liquid flow, and a third cavity, both of which communicate with the cylinder chamber. By providing the connecting member, the switching valve can be connected to the inlet tube, and the oral cavity, the switching valve, and the connecting member work together to form spaced-apart first cavities for air replenishment, second cavities for liquid flow, and third cavities.

[0012] To maintain air pressure balance and increase the liquid intake rate, preferably, the cylinder chamber is provided with an air inlet for external air to be introduced into the container. The switching valve includes a first valve ball disposed in the first chamber. The first valve ball can close the air inlet when the sprayer is inverted, thereby preventing liquid leakage. During the pressing of the wrench, the piston creates a negative pressure state in the cylinder chamber, which increases the resistance to liquid intake. When the sprayer is upright, the air inlet allows external air to enter the chamber, balancing the internal and external air pressures and ensuring smooth liquid intake. When the sprayer is inverted, the first valve ball in the first chamber can close the air inlet, preventing liquid from entering the cylinder chamber and effectively increasing the liquid intake rate.

[0013] In order to enable the sprayer to dispense liquid in both upright and inverted states, preferably, the connecting member includes an upper connecting part located in the lower section of the main body and a lower connecting part located in the threaded ring of the container. The upper connecting part constitutes the first valve seat of the switching valve and a second valve seat arranged side by side with the first valve seat at a distance. The switching valve also includes a second valve ball disposed on the first valve seat and a third valve ball disposed on the second valve seat.

[0014] The switching valve is configured such that: when the sprayer is in the upright position, the second valve ball closes the first valve seat, and the third valve ball closes the second valve seat, allowing liquid to pass through the upper third valve ball and enter the cylinder chamber before finally being sprayed out from the nozzle; when the sprayer is in the inverted position, the first valve ball closes the air inlet, the second valve ball opens the first valve seat, and the third valve ball opens the second valve seat, allowing liquid in the container to pass sequentially through the first chamber, the second chamber, the third chamber, and the cylinder chamber, and finally be sprayed out from the nozzle. In the upright position, the air inlet is open, allowing air to enter the first chamber and ultimately maintain pressure balance between the container and the outside environment. The liquid in the container enters the third chamber through the inlet tube. The impact force of the liquid pushes up the third valve ball and enters the cylinder chamber through the gap between the third valve ball and the second valve seat, and is finally sprayed out from the nozzle. In the inverted position, the first valve ball closes the air inlet to prevent liquid from flowing out of the air inlet. The second valve ball falls from the first valve seat, and the third valve ball falls from the second valve seat. The liquid in the container passes through the first, second, and third chambers in sequence, then enters the cylinder chamber and is finally sprayed out from the nozzle.

[0015] Compared with the prior art, the advantages of this utility model are as follows: 1. It integrates the existing cover, which only has a covering function, into a functional part, namely the fluidly connected inlet chamber, cylinder chamber and outlet chamber, to achieve an integrated cover design, thereby effectively avoiding the phenomenon that the outer cover is prone to detach from the sprayer body during transportation; 2. Since the cover is equipped with an integrated structure design of "inlet chamber and cylinder chamber", the cover is correspondingly designed with an open end and a first part and a second part of the outlet chamber, all for easy assembly before leaving the factory. This not only makes assembly convenient but also effectively improves the stability of the overall structure of the sprayer. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a longitudinal sectional view of the cover in an embodiment of the present utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the sealing component and the second part in the embodiments of this utility model;

[0019] Figure 4 This is an exploded structural diagram of an embodiment of the present utility model;

[0020] Figure 5 This is a longitudinal sectional view of the sprayer in an upright position in an embodiment of the present invention (the nozzle portion is omitted).

[0021] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle;

[0022] Figure 7 This is a longitudinal cross-sectional view of the sprayer in an inverted state in an embodiment of the present invention (the nozzle portion is omitted);

[0023] Figure 8 for Figure 7 A magnified view of a portion of point B in the middle.

[0024] In the diagram: 1. Cover; 11. Shell; 111. Open end; 112. Slot; 113. Fixing part; 12. Inlet chamber; 13. Outlet chamber; 131. First part; 14. Cylinder chamber; 141. Air inlet; 2. Second part; 21. Water outlet pipe; 211. Hinge seat; 22. Connecting pipe; 221. Annular protrusion; 222. Insertion part; 3. Nozzle part; 31. Connector; 4. Wrench; 5. Sealing part; 51. Water outlet section; 52. Elastic section; 53. Sealing section; 6. Pin; 7. Switching valve; 71. First valve ball; 72. Second valve ball; 73. First valve seat; 74. Third valve ball; 75. Second valve seat; 8. Connecting component; 81. Socket; 82. Upper connecting part; 83. Lower connecting part; 91. First cavity; 92. Second cavity; 93. Third cavity. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] like Figures 1 to 8The image shows the preferred embodiment of this utility model. The sprayer includes a housing 1, which comprises a shell 11 with three chambers: an inlet chamber 12 for liquid introduction, an outlet chamber 13 for liquid spraying, and a cylinder chamber 14 located between the inlet chamber 12 and the outlet chamber 13. All three chambers are in fluid communication with each other. The outlet chamber 13 includes a first part 131 directly connected to the end of the cylinder chamber 14 and a second part 2 detachably connected to the first part 131. The second part 2 includes a proximal end and a distal end, achieving a "dual-purpose" function. On the one hand, it solves the problem of guiding liquid in the outlet chamber 13 of the housing in the prior art. To address the problem of the outflow channel being difficult to form in one piece, the second part 2 connects the first part 131 and the nozzle part 3, allowing the liquid to be sprayed out smoothly. On the other hand, the distal end of the second part 2 can be hinged to a wrench 4 that enables the liquid in the cylinder chamber 14 to be sprayed out from the nozzle part 3. Compared with the prior art, the cover 1 in this embodiment integrates functional parts, namely the fluidly connected inlet chamber 12, cylinder chamber 14 and outlet chamber 13, in addition to the existing technology which only has a covering function. This achieves an integrated design of the cover 1, thereby effectively avoiding the phenomenon that the cover 1 is prone to detaching from the sprayer body during transportation.

[0027] To avoid dripping from nozzle 3 after spraying, please refer to... Figures 3 to 5 In this embodiment, a sealing element 5 to prevent liquid backflow is provided at the far end of the second part 2. The sealing element 5 includes a water outlet section 51, a sealing section 53, and an elastic section 52 located between the two. Correspondingly, the second part 2 includes a water outlet pipe 21 connected to the first part 131 and a connecting pipe 22 that accommodates the sealing element 5. When the elastic section 52 is in its natural state, the sealing section 53 can always seal the water outlet of the water outlet pipe 21. After the hydraulic pressure in the water outlet pipe 21 reaches the preset pressure of the sealing section 53, the sealing section 53 is forced to open, thereby allowing the liquid to pass through the water outlet section 51. The elastic section 52 provides a rebound force to reduce the impact between the sealing element 5 and the water outlet pipe 21 during the movement, thus playing a buffering role. The elastic segment 52 can be designed in various forms, such as S-shaped or spiral. In this embodiment, the preferred elastic segment 52 is a wave-shaped segment that is easy to process and located on both sides of the blocking segment 53 with the same opposite shape. By designing the elastic segment 52 to be located on both sides of the blocking segment 53, the blocking segment 53 can be pushed to reset more stably. At the same time, designing it as a wave shape can simulate the "shape of a spring" to have better restoring force.

[0028] To meet user needs, nozzle 3 can perform spraying, water spraying, or shutting off, refer to... Figure 1 and Figure 4The water outlet section 51 is also provided with a connector 31, which together constitute the nozzle section 3. By adjusting the rotation angle of the connector 31 relative to the water outlet section 51, the water outlet section 51 can be in two states: spraying or closing. At the same time, in the direction of liquid spraying, a mesh structure that can convert the spraying state into a foam state is provided downstream of the water outlet section 51.

[0029] refer to Figure 2 and Figure 3 Because the housing 1 is designed with an integrated structure of the inlet chamber 12 and the cylinder chamber 14, the open end 111 of the housing 1 is designed to facilitate the assembly of the first part 131 and the second part 2 of the outlet chamber 13 before leaving the factory. For this reason, the connecting tube 22 corresponding to the second part 2 has a dual function: firstly, the annular convex ring 221 of the connecting tube 22 can close the open end 111 after assembly, and the housing 1 can cover the various functional components, improving the overall aesthetics of the sprayer; secondly, the insertion part 222 that can be inserted and connected to the housing 11 is integrated on the annular convex ring 221 of the connecting tube 22, which is more ingenious in terms of structural design.

[0030] During use, the user needs to use wrench 4 to press the piston back and forth to pressurize the cylinder chamber 14. (Refer to...) Figure 4 In this embodiment, the water outlet pipe 21 of the second part 2 is provided with a hinge seat 211. In order to facilitate processing, the hinge seat 211 in this embodiment is provided in the form of a sleeve. The wrench 4 is hinged to the hinge seat 211 by a pin 6. The open end 111 of the housing 11 is provided with a fixing part 113 for fixing the pin 6 near the slot 112 so that the user can make a pressing action.

[0031] Sprayers typically operate in two states: upright and inverted. To ensure smooth water output in both states, refer to... Figure 6 and Figure 8In this embodiment, a switching valve 7 is provided on the inlet tube inside the oral cavity chamber 12. The switching valve 7 is built on the connecting member 8. The connecting member 8 is detachably connected to and positioned at the upper end of the inlet tube. By setting the connecting member 8, the switching valve 7 can be connected to the inlet tube. At the same time, with the cooperation of the oral cavity chamber 12, the switching valve 7 and the connecting member 8, a first chamber 91 for air replenishment, a second chamber 92 for liquid flow and a third chamber 93 are respectively formed at intervals. During the pressing of the wrench 4, the piston creates a negative pressure state in the cylinder chamber 14, which increases the resistance to liquid intake. Therefore, in this embodiment, an air inlet 141 is provided between the first chamber 91 and the cylinder chamber 14. Its function is to maintain air pressure balance by supplementing gas into the container. When the sprayer is upright, the air inlet 141 allows external air to enter the chamber, balancing the internal and external air pressure to ensure smooth liquid intake. When the sprayer is inverted, the first valve ball 71 in the first chamber 91 can close the air inlet 141 to prevent liquid from entering the cylinder chamber 14, effectively improving the liquid loading speed.

[0032] In this embodiment, the connecting member 8 includes an upper connecting portion 82 located in the lower section of the main body and a lower connecting portion 83 located in the threaded ring of the container. The upper connecting portion 82 constitutes a first valve seat 73 of the switching valve 7 and a second valve seat 75 arranged side by side with the first valve seat 73 at a distance. The switching valve 7 also includes a second valve ball 72 disposed on the first valve seat 73 and a third valve ball 74 disposed on the second valve seat 75.

[0033] In summary, the spraying process of the sprayer in this embodiment is as follows: First, the user selects the nozzle section 3 with a mesh structure according to whether foam needs to be generated. Then, according to usage requirements, the user selects the indicator icon corresponding to the connector 31 on the nozzle section 3 to spray or turn off the sprayer. After adjusting the rotation angle of the connector 31, if the user needs the sprayer to spray in an upright mode, the user presses the wrench 4 to add liquid. At this time, the first valve ball 71 falls into the first cavity 91, thereby opening the air inlet 141. Air can enter the first cavity through the air inlet 141. The cavity 91 ultimately maintains air pressure balance between the container and the outside. The liquid in the container enters the third cavity 93 through the inlet pipe. The impact force of the liquid pushes the third valve ball 74, so that the liquid enters the cylinder chamber 14 through the gap between the third valve ball 74 and the second valve seat 75. The liquid in the cylinder chamber 14 passes through the first part 131 and the second part 2 in sequence. When the hydraulic pressure in the outlet pipe 21 reaches the preset pressure, the sealing section 53 opens, and the liquid can flow out from the gap between the sealing section 53 and the inclined surface of the outlet and finally be sprayed out by the nozzle part 3.

[0034] If the user needs the sprayer to spray in an inverted position, the flow path is different from the upright mode. Please refer to [the relevant documentation]. Figure 7 and Figure 8 Press the wrench 4 to add liquid. The first valve ball 71 closes the air inlet 141 to prevent liquid from flowing out of the air inlet 141. The second valve ball 72 falls from the first valve seat 73, and the third valve ball 74 falls from the second valve seat 75. At this time, the liquid inlet process is as follows: the liquid in the container passes through the first chamber 91, the second chamber 92, the third chamber 93 and the cylinder chamber 14 in sequence. Whether it is upright or inverted, once the liquid fills the entire cylinder chamber 14, further actuation will push the liquid into the first part 131. At this time, the liquid passes through the first part 131 and the second part 2 in sequence. When the hydraulic pressure in the water outlet pipe 21 reaches the preset pressure, the sealing section 53 opens, and the liquid can pass through the water outlet section 51 and finally be sprayed out from the nozzle section 3.

Claims

1. A sprayer comprising a housing (1), characterized in that: The housing (1) includes a housing (11) configured with at least one chamber, the chamber including an inlet chamber (12) for liquid introduction, an outlet chamber (13) for liquid ejection, and a cylinder chamber (14) located between the inlet chamber (12) and the outlet chamber (13), the three being in fluid communication. The outlet chamber (13) includes a first portion (131) directly connected to the end of the cylinder chamber (14) and a second portion (2) detachably connected to the first portion (131). The second portion (2) has a proximal end connected to the first portion (131) and a distal end away from the first portion (131) and connected to a nozzle portion (3) for liquid ejection. The housing (11) has an open end (111) extending to the distal end, and a wrench (4) is hinged near the distal end to allow liquid in the cylinder chamber (14) to be ejected from the nozzle portion (3).

2. The sprayer according to claim 1, characterized in that: The second part (2) is further provided with a sealing element (5) at its far end. The sealing element (5) includes a water outlet section (51), a sealing section (53), and an elastic section (52) located between the two. Correspondingly, the second part (2) includes a water outlet pipe (21) connected to the first part (131) and a connecting pipe (22) that accommodates the sealing element (5). The sealing section (53) can always seal the water outlet of the water outlet pipe (21) when the elastic section (52) is in a natural state. When the hydraulic pressure in the water outlet pipe (21) reaches the preset pressure of the sealing section (53), the sealing section (53) is forced to open and the liquid passes through the water outlet section (51).

3. The sprayer according to claim 2, characterized in that: The elastic segment (52) is a wave-shaped structure located on both sides of the blocking segment (53) and having the same opposite shape.

4. The sprayer according to claim 3, characterized in that: The water outlet section (51) is also provided with a connector (31), and the two together constitute the nozzle part (3). When the rotation angle of the connector (31) relative to the water outlet section (51) is adjusted, the water outlet section (51) can be in at least one of the following spray states: spraying or closed, or in the direction of liquid spraying, a mesh structure that can convert the spray state into a foam state is provided downstream of the water outlet section (51).

5. The sprayer according to claim 3, characterized in that: The wall of the connecting pipe (22) extends radially outward to form an annular protrusion (221) for sealing the open end (111). The annular protrusion (221) is provided with an insertion part (222) facing the direction of the water outlet pipe (21). Correspondingly, the open end (111) of the housing (11) is provided with a slot (112) for the insertion part (222) to be inserted.

6. The sprayer according to claim 5, characterized in that: The water outlet pipe (21) is provided with a hinge seat (211), and the wrench (4) is hinged to the hinge seat (211) by a pin (6). Correspondingly, the open end (111) of the housing (11) is provided with a fixing part (113) for fixing the pin (6) near the slot (112).

7. The sprayer according to any one of claims 1 to 6, characterized in that: The inlet tube in the oral cavity chamber (12) is equipped with a switching valve (7) to enable the sprayer to operate in upright or inverted mode. The switching valve (7) is built on a connecting member (8), which is detachably connected to and positioned at the upper end of the inlet tube. The connecting member (8) includes a socket (81) for inserting the upper end of the inlet tube. A plurality of communicating cavities are formed between the oral cavity chamber (12), the switching valve (7) and the connecting member (8). The cavities include a first cavity (91) for air replenishment, a second cavity (92) for liquid flow and a third cavity (93). The first cavity (91) and the third cavity (93) are both connected to the cylinder chamber (14).

8. The sprayer according to claim 7, characterized in that: The cylinder chamber (14) is provided with an air inlet (141) for external air to be supplied into the container. The switching valve (7) includes a first valve ball (71) disposed in the first cavity (91). The first valve ball (71) can close the air inlet (141) when the sprayer is inverted to prevent liquid leakage.

9. The sprayer according to claim 8, characterized in that: The connecting member (8) includes an upper connecting portion (82) located in the lower section of the main body and a lower connecting portion (83) located in the threaded ring of the container. The upper connecting portion (82) constitutes a first valve seat (73) of the switching valve (7) and a second valve seat (75) arranged side by side with the first valve seat (73) at a distance. The switching valve (7) also includes a second valve ball (72) disposed on the first valve seat (73) and a third valve ball (74) disposed on the second valve seat (75). The switching valve (7) is configured such that: when the sprayer is in the upright position, the second valve ball (72) closes the first valve seat (73), and the third valve ball (74) closes the second valve seat (75). The liquid passes through the third valve ball (74) and enters the cylinder chamber (14), and is finally sprayed out by the nozzle (3); when the sprayer is in the inverted position, the first valve ball (71) closes the air inlet (141), the second valve ball (72) opens the first valve seat (73), and the third valve ball (74) opens the second valve seat (75). The liquid in the container passes through the first chamber (91), the second chamber (92), the third chamber (93), and the cylinder chamber (14) in sequence, and is finally sprayed out by the nozzle (3).

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