Supercharged foam generator structure
By combining an air pump, air pipe, foam liquid storage chamber, and pressurization chamber, the problems of high material consumption and high water content in existing foam generators are solved, achieving low-cost and high-efficiency foam spraying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 许泽权
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-12
AI Technical Summary
Existing foam generators have high material consumption due to their Venturi tube and ejector tube structures, high foam water content, complex structure, and high cost.
It adopts a combination structure of air pump, air pipe, foam liquid storage chamber and pressurization chamber. The air pump pumps in gas to generate bubbles and pressurizes it in the pressurization chamber, squeezing the liquid back to flow. The high pressure pushes the bubbles out to form foam spray.
It reduces the amount of foam consumables used, reduces the water content of the foam, and has a simple structure, low cost, and low failure rate.
Smart Images

Figure CN224221121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a foam generator structure, specifically a pressurized foam generator structure. Background Technology
[0002] A foam generator is a device that sprays foam by mixing foam liquid with air. It is commonly used in fire protection, sanitary ware, toys, stage decoration equipment, and other fields that require foam spraying. Currently, most foam generators on the market use either a Venturi tube structure or an ejector tube structure. The Venturi tube structure uses a high-speed fluid as a medium, which draws in another medium through the pressure difference generated in the different cross-sectional areas of the Venturi tube, mixes and foams, and then sprays the mixture. The ejector tube structure, on the other hand, uses a high-speed fluid jet to create negative pressure, guiding another medium into the mixture before spraying. Both structures have the disadvantage of high material consumption, and the sprayed foam has a high water content. Summary of the Invention
[0003] This utility model discloses a pressurized foam generator structure, comprising an air pump, an air pipe, an air inlet, a foam liquid storage chamber, a pressurization chamber, and a foam nozzle; the bottom of the foam liquid storage chamber is installed and connected to the air inlet; the output port of the air pump is connected to the air inlet through the pipe; the top of the foam liquid storage chamber is connected to the pressurization chamber to form an integral space; the foam nozzle is connected to and connected to the pressurization chamber.
[0004] Preferably, the air pump can be a manual air pump or an electric air pump.
[0005] The positive and progressive effects of this utility model are as follows:
[0006] Compared to foam generators using Venturi tube and ejector tube structures, this invention consumes less foam liquid and materials when spraying the same amount of foam; the sprayed foam has less water content and a higher foaming ratio; it also has the advantages of simple overall structure, low production cost, small size, and low failure rate. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.
[0008] Explanation of reference numerals in the attached drawings: air pump (1); air pipe (2); air inlet pipe (3); foam liquid storage chamber (4); pressurization chamber (5); foam nozzle (6). Detailed Implementation
[0009] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.
[0010] Please see Figure 1 The system consists of an air pump (1), an air pipe (2), an air inlet pipe (3), a foam liquid storage chamber (4), a pressurizing chamber (5), and a foam nozzle (6). The output port of the air pump (1) is connected to the air inlet pipe (3) through the pipe (2). The air inlet pipe (3) is connected to the bottom of the foam liquid storage tank (4). When working, gas is pumped into the bottom of the foam liquid, and bubbles are generated by the surface tension of the foam liquid. Due to buoyancy, the bubbles rise above the surface of the foam liquid and enter the pressurizing chamber (5). Since the overall space formed by the foam liquid storage tank (4) and the pressurizing chamber (5) is sealed except for the air inlet pipe (3) and the foam nozzle (6), the air pressure in the pressurizing chamber (5) increases at this time. This will squeeze the bubbles to detach most of the liquid in the bubbles. The detached liquid will flow back to the foam liquid storage chamber (4) below for recycling under the action of gravity. At the same time, the high air pressure pushes the bubbles to move towards the foam nozzle (6) with lower air pressure. Under the push of the high air pressure, the bubbles are sprayed out through the foam nozzle (6) to form a foam spraying effect.
[0011] Preferably, the air pump (1) can be a manual air pump or an electric air pump to suit different usage scenarios.
[0012] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.
Claims
1. A pressurized foam generator structure, characterized in that: It comprises an air pump, an air pipe, an air inlet, a foam liquid storage chamber, a pressurization chamber, and a foam nozzle; the bottom of the foam liquid storage chamber is installed and connected to the air inlet; the output port of the air pump is connected to the air inlet through the air pipe; the top of the foam liquid storage chamber is connected to the pressurization chamber to form an integral space; the foam nozzle is connected to the pressurization chamber.
2. The pressurized foam generator structure according to claim 1, characterized in that: The air pump can be a manual air pump or an electric air pump.