High-sealing-performance anti-volatilization negative pressure spray bottle

By incorporating a sealing mechanism into the negative pressure spray bottle, the contamination problem caused by nozzle exposure is solved, achieving high sealing performance and hygienic safety of the spray bottle, and improving spraying effect and applicability.

CN223778964UActive Publication Date: 2026-01-09ZHEJIANG UNIV OF SCI & TECH
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Patent Information

Application Number
CN202520483953.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-01-09
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Nozzles exposed to the external environment are easily affected by pollutants such as dust and bacteria in the air, which reduces the hygiene and safety of the spray bottle and results in poor spraying effect.

Method used

A high-sealing, anti-volatile negative pressure spray bottle was designed. By setting a sealing mechanism on the bottle cap, including components such as the cap body, fixing seat, limiting block and spring, the nozzle can be automatically shielded to prevent the nozzle from being directly exposed to the air.

Benefits of technology

It effectively prevents the nozzle from coming into contact with contaminants, improves the hygiene and safety of the spray bottle and the spray effect, enhances applicability, and avoids nozzle clogging and changes in liquid properties.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-sealing-performance anti-volatilization negative pressure spray bottle, and belongs to the technical field of negative pressure spray bottles, the negative pressure spray bottle comprises a negative pressure spray bottle body and a bottle cap arranged on the negative pressure spray bottle body, the bottle cap is provided with a nozzle, the negative pressure spray bottle body is provided with a spray pressing plate, the bottle cap is provided with a sealing mechanism, and the sealing mechanism is arranged on the bottle cap. A threaded seat is fixedly installed at the upper end of the bottle cap, the sealing mechanism comprises a cap body arranged on the bottle cap in a sleeving mode, and a fixing seat used for being connected with the threaded seat in a threaded and sleeving mode is arranged in the cap body; a user only needs to manually press the cover body, after the cover body moves downwards to a designated position, the limiting block and the fixing base are clamped and fixed, the cover body shields the nozzle at the moment, and therefore the phenomenon that the nozzle is directly exposed in the air, dust, bacteria, microorganisms and other pollutants in the air make contact with the nozzle is avoided, and the service life of the nozzle is prolonged. And compared with a traditional clamping and pressing type plastic sealing cover, the sealing cover is not prone to being lost, and the applicability is higher.
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Description

Technical Field

[0001] This application relates to the field of negative pressure spray bottle technology, specifically a high-sealing, anti-volatile negative pressure spray bottle. Background Technology

[0002] With the widespread demand for spray products in modern industry, medical care, and daily life, negative pressure spray bottles have been widely used in many application scenarios due to their efficient and precise spraying function. These spray bottles use the principle of negative pressure to draw the liquid inside the bottle into the nozzle and then spray it out by pressing the spray bottle.

[0003] Because the nozzle is exposed to the external environment, liquid residue inside the nozzle will gradually evaporate or volatilize over time. This not only leads to the waste of the remaining liquid in the bottle, but may also cause nozzle blockage and changes in liquid properties, affecting the spraying effect. In addition, the nozzle exposed to the external environment is susceptible to contaminants such as dust and bacteria in the air, thereby reducing the hygiene and safety of the spray bottle.

[0004] This application provides a high-sealing, anti-evaporation negative pressure spray bottle to solve the above problems. Utility Model Content

[0005] This application provides a highly airtight, anti-volatile negative pressure spray bottle, which aims to solve the problem mentioned in the background art that the nozzle is easily attacked by pollutants such as dust and bacteria in the air when exposed to the external environment, thereby reducing the hygiene and safety of the spray bottle.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-sealing anti-volatile negative pressure spray bottle, comprising a negative pressure spray bottle body and a bottle cap disposed on the negative pressure spray bottle body, wherein a nozzle is disposed on the bottle cap, a spray pressure plate is disposed on the negative pressure spray bottle body, and a sealing mechanism is disposed on the bottle cap;

[0007] A threaded seat is fixedly installed at the upper end of the bottle cap;

[0008] The sealing mechanism includes a cap body fitted onto a bottle cap. Inside the cap body is a fixing seat for threaded engagement with a threaded seat. A circular frame seat is fixedly installed inside the cap body, and the circular frame seat has several limiting blocks for engaging and fixing with the fixing seat. The cap body provides a shield for the nozzle, thereby preventing the nozzle from being directly exposed to the air and coming into contact with airborne contaminants such as dust, bacteria, and microorganisms.

[0009] Preferably, the circular frame base has several movable slots arranged in a ring for the movable insertion of the limiting block. The limiting block moves according to the two states of the bottle cap being used and not being used, thereby adjusting the position of the cap.

[0010] Preferably, each limiting block is fixedly mounted with a fixing plate, each fixing plate is mounted with a limiting rod, and a push block is fixedly mounted on the end of the limiting rod away from the fixing plate. The circular frame base is provided with a plurality of positioning seats in a ring shape on the side away from the fixing base for the movable insertion of the limiting rod. A limiting post is fixedly mounted on the cover, and a movable button is movably inserted into the limiting post. The lower end of the movable button is provided with a pressing block for pressing the push block. The chamfer on the limiting block is mainly used so that when the cover is pressed down, the limiting block can contact the fixing base and be pushed into the interior of the movable groove, so that the limiting block and the fixing base are locked together and the cover is in a sealing position for the nozzle.

[0011] Preferably, each of the limiting rods is fitted with a third spring for connecting with the push block, and the push block has an inclined chamfer.

[0012] Preferably, a first spring is fixedly installed at the lower end of the extrusion block, and the lower end of the first spring is connected to the circular frame base.

[0013] Preferably, the upper end of the fixing base has a plurality of second springs arranged in a circular array, and the upper ends of the second springs are all connected to the lower end of the circular frame base.

[0014] When the negative pressure spray bottle is not in use, the user only needs to manually press the cap to move it downwards to the designated position. The limiting block and the fixing seat then engage and fix the cap, which provides a shield for the nozzle, thus preventing the nozzle from being directly exposed to the air and coming into contact with pollutants such as dust, bacteria, and microorganisms. Compared with traditional press-fit plastic caps, it is less likely to be lost and has greater applicability. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a highly sealed, anti-volatile negative pressure spray bottle;

[0016] Figure 2 This is a schematic diagram of the threaded seat structure;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the cover in its unsealed state;

[0018] Figure 4 A schematic diagram of the cross-sectional structure of the cover in its sealed state;

[0019] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0020] Figure 6 This is a schematic diagram of the circular frame base.

[0021] In the picture:

[0022] 1. Negative pressure spray bottle body; 2. Bottle cap; 21. Nozzle; 22. Threaded seat; 3. Sealing mechanism; 31. Cover body; 311. Movable button; 312. Limiting post; 313. Squeezing block; 314. First spring; 32. Fixed seat; 321. Second spring; 33. Circular frame seat; 331. Movable groove; 34. Limiting block; 35. Fixed plate; 36. Limiting rod; 37. Push block; 38. Third spring; 39. Positioning seat; 4. Spray pressure plate. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This embodiment provides a highly sealed, anti-volatile negative pressure spray bottle, such as... Figure 1-6 As shown, the negative pressure spray bottle includes a negative pressure spray bottle body 1 and a bottle cap 2 disposed on the negative pressure spray bottle body 1. A nozzle 21 is disposed on the bottle cap 2, a spray pressure plate 4 is disposed on the negative pressure spray bottle body 1, and a sealing mechanism 3 is disposed on the bottle cap 2.

[0025] A threaded seat 22 is fixedly installed on the upper end of the bottle cap 2;

[0026] The sealing mechanism 3 includes a cap body 31 sleeved on the bottle cap 2. The cap body 31 has a fixing seat 32 inside for threaded engagement with the threaded seat 22. A circular frame seat 33 is fixedly installed inside the cap body 31. The circular frame seat 33 has a plurality of limiting blocks 34 for engaging and fixing with the fixing seat 32.

[0027] Specifically, the negative pressure spray bottle body 1 is threadedly fitted with the fixing seat 32 and the threaded seat 22, thereby keeping the cap 31 connected to the bottle cap 2. When the user is not using the negative pressure spray bottle body 1, the user only needs to manually press the cap 31 to move the cap 31 downward to the designated position. Then, the limiting block 34 and the fixing seat 32 form a locking and fixing. At this time, the cap 31 provides a shield for the nozzle 21, thereby preventing the nozzle 21 from being directly exposed to the air, causing dust, bacteria, microorganisms and other pollutants in the air to come into contact with it. Compared with the traditional snap-on plastic cap, it is not easy to lose and has a wider range of applications.

[0028] The circular frame base 33 has several movable slots 331 arranged in a ring for the movable insertion of the limiting block 34.

[0029] More specifically, the movable groove 331 opened on the circular frame base 33 is mainly used to allow each limiting block 34 to move freely, so that the limiting block 34 can move according to the two states of the bottle cap 2 being used and not being used, thereby adjusting the position of the cap 31.

[0030] Each limiting block 34 is fixedly mounted with a fixing plate 35, and each fixing plate 35 is mounted with a limiting rod 36. A push block 37 is fixedly mounted on the end of the limiting rod 36 away from the fixing plate 35. The circular frame base 33 is provided with a number of positioning seats 39 arranged in a ring on the side away from the fixing seat 32 for the movable insertion of the limiting rod 36. A limiting post 312 is fixedly mounted on the cover 31, and a movable button 311 is movably inserted into the limiting post 312. A pressing block 313 for pressing the push block 37 is provided at the lower end of the movable button 311.

[0031] Furthermore, the limiting post 312 installed on the cover 31 plays a limiting role when the active button 311 is pressed, preventing the active button 311 from deviating during the pressing process. The squeezing block 313 installed at the lower end of the limiting post 312 squeezes each push block 37 outward, thereby causing the limiting rod 36, the fixing plate 35 and the limiting block 34 to move synchronously, so that the limiting block 34 is disengaged from the fixing seat 32. The chamfer on the limiting block 34 is mainly used to make the limiting block 34 contact the fixing seat 32 and be pushed into the interior of the active groove 331 when the cover 31 is pressed down, so that the limiting block 34 and the fixing seat 32 are locked together and the cover 31 is in a sealing position against the nozzle 21.

[0032] Each limiting rod 36 is fitted with a third spring 38 for connecting with the push block 37, and the push block 37 has an inclined chamfer.

[0033] Furthermore, the third spring 38 fitted on the limit rod 36 is installed between the push block 37 and the positioning seat 39. After the limit post 312 is reset and no longer in contact with the push block 37, the third spring 38 can be used to reset the push block 37 with the limit block 34. The positioning seat 39 mainly limits the horizontal movement of the limit rod 36.

[0034] A first spring 314 is fixedly installed at the lower end of the extrusion block 313, and the lower end of the first spring 314 is connected to the circular frame base 33.

[0035] It should be noted that the first spring 314 installed at the lower end of the compression block 313 mainly serves to reset the movable button 311.

[0036] The upper end of the fixed base 32 has a number of second springs 321 arranged in a ring, and the upper ends of the second springs 321 are all connected to the lower end of the circular frame base 33.

[0037] It is worth mentioning that the second spring 321 installed on the fixed seat 32 is connected to the lower end of the round frame seat 33, so that the round frame seat 33 and the fixed seat 32 are connected. At the same time, when the fixed seat 32 and the threaded seat 22 are threadedly connected, if the active button 311 is pressed, the cap 31 will be adjusted upward, so that the nozzle 21 can spray normally, and the cap 31 will not separate from the bottle cap 2.

[0038] In use, the negative pressure spray bottle body 1 is threadedly fitted with the fixing seat 32 and the threaded seat 22, thereby keeping the cap 31 connected to the bottle cap 2. When the user is not using the negative pressure spray bottle body 1, the user only needs to manually press the cap 31 to move the cap 31 downward to the designated position. Then, the limiting block 34 and the fixing seat 32 form a locking and fixing. At this time, the cap 31 provides a shield for the nozzle 21, thereby preventing the nozzle 21 from being directly exposed to the air, causing dust, bacteria, microorganisms and other pollutants in the air to come into contact with it. Compared with the traditional snap-on plastic cap, it is not easy to lose and has a wider range of applications.

[0039] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A high-sealing anti-volatile negative pressure spray bottle, comprising a negative pressure spray bottle body (1) and a bottle cap (2) disposed on the negative pressure spray bottle body (1), wherein a nozzle (21) is disposed on the bottle cap (2), a spray pressure plate (4) is disposed on the negative pressure spray bottle body (1), and a sealing mechanism (3) is disposed on the bottle cap (2). Its features are: A threaded seat (22) is fixedly installed on the upper end of the bottle cap (2); The sealing mechanism (3) includes a cap body (31) sleeved on the bottle cap (2). The inside of the cap body (31) is provided with a fixing seat (32) for threaded connection with the threaded seat (22). A circular frame seat (33) is fixedly installed inside the cap body (31). The circular frame seat (33) is provided with a plurality of limiting blocks (34) for engaging and fixing with the fixing seat (32).

2. The high-sealing, anti-volatile negative pressure spray bottle according to claim 1, characterized in that: The circular frame base (33) has several movable slots (331) arranged in a ring for the movable insertion of the limiting block (34).

3. The high-sealing, anti-volatile negative pressure spray bottle according to claim 2, characterized in that: Each of the limiting blocks (34) is fixedly mounted with a fixing plate (35), and each of the fixing plates (35) is mounted with a limiting rod (36). A push block (37) is fixedly mounted on the end of the limiting rod (36) away from the fixing plate (35). The circular frame base (33) away from the fixing base (32) is provided with a number of positioning seats (39) arranged in a ring for the movable insertion of the limiting rod (36). A limiting post (312) is fixedly mounted on the cover (31), and a movable button (311) is movably inserted into the limiting post (312). A pressing block (313) for pressing the push block (37) is provided at the lower end of the movable button (311).

4. The high-sealing, anti-volatile negative pressure spray bottle according to claim 3, characterized in that: Each of the limiting rods (36) is fitted with a third spring (38) for connecting with the push block (37), and the push block (37) is provided with an inclined chamfer.

5. The high-sealing, anti-volatile negative pressure spray bottle according to claim 4, characterized in that: The lower end of the compression block (313) is fixedly installed with a first spring (314), and the lower end of the first spring (314) is connected to the circular frame base (33).

6. The high-sealing, anti-volatile negative pressure spray bottle according to claim 1, characterized in that: The upper end of the fixed base (32) has a number of second springs (321) arranged in a ring, and the upper ends of the second springs (321) are all connected to the lower end of the circular frame base (33).