A liquid reservoir structure for a nebulizer
By incorporating a liquid storage structure and a check valve at the bottom of the spray bottle, the problem of the suction tube detaching from the liquid surface when the sprayer is inverted or tilted is solved, ensuring that the sprayer can operate normally in various positions and improving ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUAN BIDIBAO ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-24
AI Technical Summary
Existing sprayers have a suction tube that is prone to detaching from the liquid surface when inverted or tilted, causing spray failure. They also have high requirements for the operating angle and are inconvenient to operate.
A liquid storage structure is installed at the bottom of the spray bottle, including a liquid reservoir, a sealing plate, and a check valve. A gravity ball is used to control the liquid flow to ensure normal liquid supply when the bottle is inverted or tilted.
It enables the sprayer to work normally in an inverted or tilted position, reducing the limitation of the operating angle and making operation more convenient.
Smart Images

Figure CN224542025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sprayer technology, specifically to a liquid storage structure for sprayers. Background Technology
[0002] A sprayer is a device that uses air suction to turn medicine or other liquids into a mist and spray it evenly onto other objects. It is widely used in daily life, medical, agricultural and industrial fields.
[0003] Existing patent application number: 202020396680.4 A UV-resistant polymer material hand-operated sprayer includes a bottle body, a base, a bottle cap, and an operating cover. The bottom wall of the bottle body is fixedly bonded to the top wall of the base. A power slot is provided on the side wall of the base, and a power connector is provided in the power slot. A protruding tube is fixedly bonded to the center of the top wall of the bottle body. Vertical slots are provided on both sides of the inner cavity of the protruding tube. An outer frame, a metal filter screen, and two sets of connecting blocks are also provided in the inner cavity. The bottle cap is fixedly bonded to the operating cover. A fastener and a nozzle are installed on the operating cover. A spray hole is provided on the side of the nozzle away from the operating cover.
[0004] The aforementioned patent describes the structural principle of a sprayer. Commercially available sprayers are basically composed of a spray head and a bottle body. When in use, the spray head pumps liquid from the bottle through a suction tube and sprays it out as an atomized substance. However, in actual applications, the bottom of the sprayer bottle lacks a liquid storage structure, causing the suction tube to detach from the liquid surface when the sprayer is inverted or tilted, making it unable to draw liquid and resulting in spray failure. It also has high requirements for the angle of use and is somewhat inconvenient to operate. Therefore, we propose a liquid storage structure for sprayers to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a liquid storage structure for a sprayer to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a liquid storage structure for a sprayer, comprising a spray bottle, an installation port, a spray head, a suction tube, and a liquid storage structure. The spray bottle has an installation port at the center of its top surface, and a spray head is threaded onto the surface of the installation port. A suction tube is connected to the bottom of the spray head, passing through the installation port and extending into the spray bottle. The spray bottle has a liquid storage structure at its bottom, comprising a connection port, a storage chamber, a sealing plate, a connecting hose, a hose connector, and a check valve. The bottom of the spray bottle has a through-hole connection port, the inner side of which is threaded onto the storage chamber. A sealing plate is mounted on the upper inner side of the storage chamber. The center of the sealing plate is sealed and rotatably connected to the hose connector via a rotating joint. The top end of the connecting hose extends upwards into the spray bottle, while the bottom end extends downwards into the storage chamber. A hose connector is installed at the top end of the connecting hose, and the bottom end of the suction tube is movably inserted into the hose connector, allowing the suction tube to communicate with the inside of the connecting hose. A check valve is provided at the edge of the sealing plate.
[0007] Preferably, the bottom of the liquid storage tank is hemispherical.
[0008] Preferably, the connecting hose has the same diameter as the straw opening.
[0009] Preferably, the check valve includes a valve body, a port, a connecting sleeve, a slide rod, a gravity ball, and a rod cap. The valve body is embedded in the edge of the sealing plate. The valve body has a port that extends through both the upper and lower ends. A connecting sleeve is provided at the center of the upper end of the port. A slide rod is slidably installed inside the connecting sleeve. A gravity ball is connected to the bottom end of the slide rod. The gravity ball can move and fill the bottom of the port. A rod cap is screwed onto the top of the slide rod.
[0010] Preferably, the bottom end of the passage has a trumpet-shaped opening.
[0011] Preferably, the gravity ball is made of food-grade stainless steel and has a solid structure.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention features a liquid storage structure at the bottom of the spray bottle. After the spray bottle is filled with liquid, it is kept upright. At this time, the gravity ball moves downward and detaches from the opening due to gravity, thus opening the opening and allowing the liquid inside the spray bottle to flow through the valve body to replenish the liquid storage tank. Because the liquid storage tank has a small capacity, it can be repeatedly filled by the spray bottle, ensuring that the connecting hose inside the liquid storage tank does not detach from the liquid surface. It can pump liquid and perform spraying operations normally in inverted or tilted states, reducing the limitation on the angle of use of the sprayer and making operation more convenient.
[0013] This invention incorporates a check valve at the edge of the sealing plate. When the spray bottle is inverted or tilted, the gravity ball moves under the influence of gravity to block the end of the inlet, preventing liquid from flowing back from the storage tank into the spray bottle and ensuring the storage tank is fully loaded. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall front view of the present invention; Figure 2 This utility model Figure 1 A schematic diagram of the disassembled anatomical structure; Figure 3 This is a front view cross-sectional structural diagram of the liquid storage tank in this utility model; Figure 4 This is a front view cross-sectional structural diagram of the anti-return device of this utility model; Figure 5 This is a top view of the valve body in this utility model.
[0015] In the diagram: spray bottle-1, mounting port-2, spray head-3, suction tube-4, liquid storage structure-5, connection port-51, liquid storage tank-52, sealing plate-53, connecting hose-54, hose connector-55, check valve-56, valve body-561, port-562, connecting sleeve-563, slide bar-564, gravity ball-565, rod cap-566. Detailed Implementation
[0016] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.
[0017] Please see Figure 1 This utility model provides a liquid storage structure for a sprayer, including a spray bottle 1, a mounting port 2, a spray head 3, a suction tube 4, and a liquid storage structure 5. The mounting port 2 is provided in the middle of the top surface of the spray bottle 1. The spray head 3 is threaded onto the surface of the mounting port 2. The bottom of the spray head 3 is connected to the suction tube 4. The suction tube 4 passes through the mounting port 2 and extends into the interior of the spray bottle 1. The liquid storage structure 5 is provided at the bottom of the spray bottle 1.
[0018] Specifically, during the assembly operation, first screw the liquid storage tank 52 onto the inside of the connection port 51. During this process, guide the connecting hose 54 upward through the installation port 2, then add liquid into the spray bottle 1 through the installation port 2. Next, connect the suction tube 4 to the hose connector 55, and finally screw the spray head 3 onto the outside of the installation port 2 to complete the assembly.
[0019] Please see Figure 2-3This utility model provides a liquid storage structure for a sprayer. The liquid storage structure 5 includes a connection port 51, a liquid storage tank 52, a sealing plate 53, a connecting hose 54, a hose connector 55, and a check device 56. The bottom of the spray bottle 1 is provided with a connection port 51, and the inner side of the connection port 51 is threadedly connected to the liquid storage tank 52. The upper part of the inner side of the liquid storage tank 52 is equipped with a sealing plate 53 to isolate the direct communication between the spray bottle 1 and the liquid storage tank 52. The center of the sealing plate 53 is sealed and rotatably connected to the hose connector 55 by a rotating joint. The top end of the connecting hose 54 extends upward into the interior of the spray bottle 1, and the bottom end of the connecting hose 54 extends downward into the interior of the liquid storage tank 52. The top end of the connecting hose 54 is equipped with a hose connector 55. The bottom end of the suction tube 4 is movably inserted into the hose connector 55 to connect the suction tube 4 with the interior of the connecting hose 54. The edge of the sealing plate 53 is provided with a check device 56.
[0020] After the spray bottle 1 is filled with liquid, it is kept upright. At this time, the gravity ball 565 moves downward and disengages from the opening 562 due to gravity, thereby opening the opening 562. The liquid inside the spray bottle 1 flows from the opening 562 through the valve body 561 to replenish the liquid storage tank 52. Since the liquid storage tank 52 has a small capacity, it can be repeatedly filled by the spray bottle 1, ensuring that the connecting hose 54 inside the liquid storage tank 52 will not come off the liquid surface. Liquid can be pumped and sprayed normally in both inverted and tilted states, reducing the limitation on the angle of use of the sprayer and making the operation more convenient.
[0021] In this invention, the bottom of the liquid storage tank 52 is hemispherical to better concentrate the liquid at the location of the connecting hose 54, ensuring continuous spraying without clogging.
[0022] The connecting hose 54 has the same diameter as the pipette 4 to ensure stable liquid supply.
[0023] Please see Figure 4-5 This utility model provides a liquid storage structure for a sprayer. The check valve 56 includes a valve body 561, a port 562, a connecting sleeve 563, a slide rod 564, a gravity ball 565, and a rod cap 566. The valve body 561 is embedded in the edge of the sealing plate 53. The port 562 is provided through both the upper and lower ends of the valve body 561. The connecting sleeve 563 is provided at the center of the upper end of the port 562. The slide rod 564 is slidably installed inside the connecting sleeve 563. The gravity ball 565 is connected to the bottom end of the slide rod 564. The gravity ball 565 can be moved to fill the bottom of the port 562, thereby closing the port 562. The rod cap 566 is screwed to the top of the slide rod 564. The outer diameter of the rod cap 566 is larger than the inner diameter of the connecting sleeve 563.
[0024] When the spray bottle 1 is in an inverted or tilted position, the gravity ball 565 moves under the influence of gravity to block the end of the inlet 562, so as to prevent the liquid from flowing back from the storage tank 52 into the spray bottle 1 and ensure that the storage tank 52 is fully loaded.
[0025] The bottom of the port 562 is flared to improve the sealing fit between the gravity ball 565 and the port 562.
[0026] To further explain, the gravity ball 565 is made of food-grade stainless steel and has a solid structure, ensuring sufficient mass and guaranteeing opening and closing speed.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A liquid storage structure for a sprayer, comprising a spray bottle (1), a mounting port (2), a spray head (3), and a suction tube (4), wherein the spray bottle (1) has a mounting port (2) at the center of its top surface, the mounting port (2) is threadedly connected to the surface of the mounting port (2), the bottom of the spray head (3) is connected to the suction tube (4), and the suction tube (4) extends into the interior of the spray bottle (1) through the mounting port (2); Its features are: It also includes a liquid storage structure (5), which is provided at the bottom of the spray bottle (1). The liquid storage structure (5) includes a connection port (51), a liquid storage tank (52), a sealing plate (53), a connecting hose (54), a hose connector (55), and a check valve (56). The bottom of the spray bottle (1) is provided with a through connection port (51), which is threaded to the liquid storage tank (52). A sealing plate (53) is installed on the upper part of the inner side of the liquid storage tank (52). The center of the sealing plate (53) is sealed and rotated by a rotating joint and a hose joint (55). The top end of the connecting hose (54) extends upward into the inside of the spray bottle (1), and the bottom end of the connecting hose (54) extends downward into the inside of the liquid storage tank (52). A hose joint (55) is installed at the top end of the connecting hose (54). The bottom end of the suction tube (4) is movably inserted into the hose joint (55) so that the suction tube (4) is connected to the inside of the connecting hose (54). A check device (56) is provided on the edge of the sealing plate (53).
2. The liquid storage structure for a sprayer according to claim 1, characterized in that: The bottom of the liquid storage tank (52) is hemispherical.
3. The liquid storage structure for a sprayer according to claim 1, characterized in that: The connecting hose (54) has the same diameter as the straw (4).
4. The liquid storage structure for a sprayer according to claim 1, characterized in that: The check valve (56) includes a valve body (561), a port (562), a connecting sleeve (563), a slide rod (564), a gravity ball (565), and a rod cap (566). The valve body (561) is embedded in the edge of the sealing plate (53). The valve body (561) has a port (562) that runs through both the upper and lower ends. The connecting sleeve (563) is provided at the center of the upper end of the port (562). The slide rod (564) is slidably installed inside the connecting sleeve (563). The gravity ball (565) is connected to the bottom end of the slide rod (564). The gravity ball (565) can be moved to fill the bottom of the port (562). The rod cap (566) is screwed onto the top of the slide rod (564).
5. The liquid storage structure for a sprayer according to claim 4, characterized in that: The bottom of the opening (562) is flared.
6. The liquid storage structure for a sprayer according to claim 4, characterized in that: The gravity ball (565) is made of food-grade stainless steel and has a solid structure.
Citation Information
Patent Citations
Anti-ultraviolet high polymer material hand-buckled sprayer
CN211937497U