Back pressure type automatic liquid taking device
Through the reverse pressure automatic liquid extractor, the switch is used to control the air pressure to extract liquid from the upper backpressure, which solves the problem of direct contact between hands and bottles when using daily necessities, and realizes the convenience and high hygiene and safety of liquid extracting with one-hand.
Patent Information
- Application Number
- CN202510457016.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-13
- Publication Date
- 2025-06-24
AI Technical Summary
When using existing daily necessities such as soy sauce, vinegar, hand sanitizer, toothpaste, etc., you need to contact the bottle directly with your hands, which poses hygiene and safety risks, and it is difficult to achieve the convenience of one-hand liquid collection.
The reverse pressure automatic liquid collector is used to control the air pressure through the switch, and the liquid is taken from the upper back pressure to achieve one-handed liquid collection and avoid direct contact between the hands and the bottle. The equipment includes a bottle, a wire bracket, a decorative shell and a control switch, and the liquid is automatically extracted using the upper air intake method.
It realizes the convenience of one-handed liquid collection, improves the hygiene and safety of use, reduces the risk of cross-infection of diseases in public venues, and is suitable for the multiple use of daily necessities.
Smart Images

Figure CN120191885A_ABST
Abstract
Description
Technical Field
[0001] It belongs to the field of daily necessities. Background Art
[0002] Bath liquid, hand sanitizer, facial cleanser, toothpaste, oil, soy sauce, and vinegar are all commonly used daily necessities in people's lives. Previously, they were taken out by hand picking up the bottle and pouring. Now, the method of pressing the liquid out through a presser is one step more advanced than directly pouring out by hand, avoiding direct contact between the hand and the bottle, and being more hygienic and safe. Summary of the Invention
[0003] If the method of pressing the liquid out is defined as positive pressure liquid extraction, the present invention is a method of extracting liquid by negative pressure from the upper part by controlling air pressure through a switch. The liquid extractor made by this method (hereinafter referred to as: negative pressure automatic liquid extractor). The negative pressure automatic liquid extractor can be used for daily necessities such as soy sauce, vinegar, hand sanitizer, toothpaste, etc. It can complete liquid extraction with one hand, that is, the hand does not directly touch the bottle, effectively preventing cross-infection of diseases in public venues. The structure of the negative pressure automatic liquid extractor includes: a steel wire bracket, a bottle, a decorative shell, etc. The bottom of the bottle of the negative pressure automatic liquid extractor is provided with an air inlet hole. The bottle is divided into two types: disposable or reusable. The difference is that when the disposable bottle is filled with liquid during use, both the air inlet hole and the bottle mouth are sealed with tin foil for later use; for the reusable one, a sealing rubber pad with a groove in the middle is added to the air inlet hole, and the groove is stuck on the air inlet hole, and the (conical hollow) plug can be inserted and pulled out multiple times for filling the liquid multiple times; the bottle mouth is provided with an external thread that fits with the internal thread of the bottle cap. The bottle cap has two types: with a through hole and without a through hole, which can be selected according to needs. The bottle cap is lengthened and extended for easy placement on the steel wire rack. The control device is installed on the steel wire rack. The steel wire rack has sides and a back, and is open in the front for convenient placement or replacement of the bottle. A shelf with a notch is provided at the lower part of the steel wire rack, and the bottle can be inserted into the notch; the shelf is also used to place the control switch. An active push plate is provided on the wrench of the control switch, and both sides of the active push plate are inclined forward. The control switch has an automatic reset function. The negative pressure automatic liquid extractor adopts the upper air inlet method to automatically extract liquid, that is, the air supply channel is controlled through the control switch. The air supply channel is connected by a plastic hose to supply air to the bottle to control the outflow of the liquid; the decorative shell is sleeved on the steel wire rack. Brief Description of the Drawings
[0005] Figure 1 It is a schematic diagram of the structure and shape of the bottle.
[0006] Figure 2 It is a schematic diagram of the air supply pipeline and the air inlet and control switch. Figure 3 It is a schematic diagram of the air inlet and control switch of the negative pressure automatic liquid extractor. Figure 4 It is a schematic structural diagram of a wire support. Figure 5 It is a schematic diagram of the decorative shell (front and back). Figure 6 It is a schematic diagram of the backpressure automatic pipettor placed on a small table.
[0008] In the figure: (1) bottle, (2) ordinary air inlet hole, (3) strengthened air inlet hole (with a sealing gasket added), (4) bottle mouth, (5) perforated bottle cap, (6) bottle cap, (7) schematic cross-section of the (1) bottle; (8) air inlet of the (control switch), (9) control switch, (10) movable push plate (with both sides tilted forward), (11) air delivery channel, (12) (conical hollow) plug-in; (13) wire support, (14) shelf (for placing the bottle and installing the control switch in the wire support), (15) hanging buckle of the (wire support). (16) decorative shell, (17) vertical card (at the back of the decorative shell), (18) flat card (on the upper sides of both sides of the decorative shell), (19) small table, (20) notch (set in front of the tabletop). Specific implementation method
[0009] The structure of the backpressure automatic pipettor includes: (1) bottle, (14) wire support, (17) decorative shell; (1) The bottle is made of plastic, and its cross-section can be circular, square, or polygonal; (1) The bottom of the bottle is provided with air inlet holes, which are divided into two types: (2) ordinary air inlet holes and (3) strengthened air inlet holes (as shown in the attachment Figure 1 ); The difference between the two types of air inlet holes is that: (2) The ordinary air inlet hole is set for a one-time (1) bottle. After the liquid is filled in this (2) ordinary air inlet hole (1) bottle, like the (4) bottle mouth, it is sealed with tin foil for later use; (3) The strengthened air inlet hole (with a sealing gasket added), the gasket groove is firmly stuck on the air inlet hole, and it can be inserted and pulled out multiple times for filling liquid multiple times; (4) The bottle mouth is provided with an external thread that fits the internal thread of the bottle cap. The bottle cap has two types: (5) with a through hole and (6) without a through hole for selection. The bottle cap is lengthened and extended for easy placement in the (13) wire support. The front end of the (11) air delivery channel is connected to the (9) control switch, and the rear end of the (11) air delivery channel is connected to the (13) (conical hollow) plug-in, (12) (conical hollow) plug-in; It is made of a hard material and is connected to the rear end of the (11) air delivery channel for inserting into the (2) ordinary air inlet hole or the (3) strengthened air inlet hole. The (11) air delivery channel is connected by a plastic hose. (As shown in the attachment Figure 2As shown in the figure. (9) A push plate (active) is provided on the wrench of the control switch. (10) The push plate is used to drive the opening and closing of the (9) control switch. The (9) control switch has an automatic reset function and is linked with the (10) push plate to control the backpressure automatic liquid extractor. (As attached Figure 3 As shown in the figure. (13) The wire bracket is welded by wire-like materials and is composed of two sides added to the back, with the front open. A fixed (14) shelf is provided at the bottom position. (14) The shelf is used to place (or replace) the (1) bottle and to place the (9) control switch. (As attached Figure 5 As shown in the figure. (16) The decorative shell is made of thin metal sheet or plastic and is composed of the front added to two sides, with the back open. A (22) vertical card is provided at the back of the (16) decorative shell to prevent the (16) decorative shell from slipping forward, and a (23) horizontal card is provided at the top to prevent the (16) decorative shell from slipping down. ((11) Gas transmission channel. As attached Figure 5 As shown in the figure.
[0010] The main feature of the backpressure automatic liquid extractor is to use the method of air intake from the upper part, that is, to use the (10) movable push plate provided on the wrench of the (9) control switch. The two sides of the (10) movable push plate are inclined forward. The (10) push plate drives the closing of the (9) control switch. When extracting liquid, as long as the (10) movable push plate is touched by hand or a tool (such as a soup spoon, a toothbrush, etc.), the (10) movable push plate and the (9) control switch are synchronously linked, and air enters the (1) bottle along the (11) gas transmission hose to press out the liquid. After the hand is released, the (9) control switch resets (automatically), stops air intake, and the liquid extraction stops, realizing the (backpressure type) automatic liquid extraction function.
[0011] The backpressure automatic liquid extractor can be hung on the wall of the kitchen or bathroom with a (15) hanging buckle, which is suitable for home use. The backpressure automatic liquid extractor can also be placed on a (19) small table, and then it can be placed on a platform or a table for use. A (20) notch is provided in front of the table surface of the (19) small table, corresponding to the outlet of the backpressure automatic liquid extractor. (As attached Figure 6 As shown in the figure, and this placement method is suitable for public venues.
Claims
1. A back-pressure automatic liquid dispenser, comprising: (1) bottle, (13) wire support, (16) decorative shell, characterized in that (1) an air inlet is arranged at the bottom of the bottle; (14) shelf, (14) shelf is used to place or replace (1) bottle and to place (9) control switch; (16) decorative shell is made of metal sheet or plastic, (17) vertical card is arranged at the back of (16) decorative shell, and (18) flat card is arranged at the top of (16) decorative shell.
2. According to claim 1, the bottle portion is provided with an air inlet, characterized in that: The air inlet holes are divided into (2) ordinary air inlet holes and (3) enhanced air inlet holes. (3) The enhanced air inlet holes are provided with sealing rubber pads, and the grooves of the rubber pads are firmly stuck on the air inlet holes.
3. According to the steel wire bracket (13) in claim 1, it is characterized in that: (13) The wire bracket consists of three sides, a back side and two side sides, and the front side is open.
4. The decorative housing (16) according to claim 1, characterized in that: (16) The decorative shell consists of a front and two side surfaces and is open at the back.
5. The control switch according to claim 1 (9), characterized in that: (9) The wrench of the control switch is provided with a 10) movable push plate, and (9) the control switch has an automatic reset function.
6. The movable push plate according to claim 5 (10), characterized in that: The two sides of the (10) movable push plate are inclined forward, and the (10) movable push plate is used to drive the (9) control switch.
7. The bottle according to claim 1, characterized in that: (1) The bottle is made of plastic and its cross section can be round, square or polygonal.
8. The back-pressure automatic liquid dispenser according to claim 1, characterized in that: The back-pressure automatic liquid dispenser can be hung on a wall using a (15) hanging buckle; the back-pressure automatic liquid dispenser can also be placed on a (19) small table for use, and a (20) notch is set in front of the table top of the (19) small table, corresponding to the liquid outlet of the back-pressure automatic liquid dispenser.