A quick-change nozzle for a foam spray head

By designing a foaming nozzle that can quickly switch nozzles, and by using multi-shaped nozzles and an air intake regulating valve, the problems of low spraying efficiency and single function of existing foaming nozzles have been solved, achieving high-efficiency foaming and applicability to multiple scenarios.

CN224542015UActive Publication Date: 2026-07-24QINGDAO KDN BIOTECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO KDN BIOTECH
Filing Date
2025-07-07
Publication Date
2026-07-24

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Abstract

The utility model relates to the technical field of spray head, concretely relates to a foaming spray head of quick switching nozzle. Including gas -liquid mixing pipe, its one end communicates four -way connecting piece, its other end communicates mixed screen cloth and nozzle in proper order, its outside still is equipped with sleeve pipe, the both ends of sleeve pipe are respectively with four -way connecting piece and nozzle screw connection for fixed gas -liquid mixing pipe, one end of four -way connecting piece is screw connected quick -inserting spray head, its upper end is screw connected air inlet regulating valve, its lower end is screw connected foaming liquid inlet. The utility model discloses the aperture of quick -inserting spray head is set as 1mm -2mm, compares with the conventional spray head and significantly improves the foaming efficiency. And the quick switching of single fan -shaped nozzle and double fan -shaped nozzle combines the pressure regulating system of air inlet regulating valve and foaming liquid inlet, improves the operation efficiency, and also greatly widens the application range of the utility model.
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Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, specifically to a foaming nozzle with quick nozzle switching, which is suitable for various fields such as cleaning, fire fighting, agriculture, and car detailing. Background Technology

[0002] Currently, conventional foaming nozzles on the market have the following usage problems:

[0003] First, the spraying efficiency is low. Because the inlet diameter of conventional foaming nozzles is small (usually less than 1mm), the foaming volume is insufficient (less than 5L per minute). In addition, most of them use single fan-shaped nozzles, which leave many exposed points after one spray when spraying on a plane, requiring multiple spraying and sweeping operations, which greatly reduces the work efficiency.

[0004] Secondly, its function is limited, and the shape of the foaming liquid sprayed out is fixed (such as a single fan shape), which cannot be adjusted according to different working scenarios, thus limiting its application range. Utility Model Content

[0005] This invention provides a foaming nozzle with quick nozzle switching, which aims to solve the problems of low spraying efficiency and single function of existing foaming nozzles, and achieve high-efficiency foaming and multi-scenario adaptability.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] This utility model provides a foaming nozzle with quick-switching nozzles, including a gas-liquid mixing tube. One end of the gas-liquid mixing tube is connected to a four-way connector. The end of the gas-liquid mixing tube away from the four-way connector is sequentially connected to a mixing screen and a nozzle. A sleeve is provided on the outside of the gas-liquid mixing tube. The two ends of the sleeve are threadedly connected to the four-way connector and the nozzle, respectively, to fix the gas-liquid mixing tube. The end of the four-way connector away from the gas-liquid mixing tube is threadedly connected to a quick-connect nozzle. The upper end of the four-way connector is threadedly connected to an air inlet regulating valve, and the lower end of the four-way connector is threadedly connected to a foaming liquid inlet.

[0008] Furthermore, the orifice diameter of the quick-connect nozzle is 1mm - 2mm.

[0009] Furthermore, the nozzle is a single-fan nozzle.

[0010] Furthermore, the nozzle is a double-fan nozzle.

[0011] Furthermore, a sealing gasket is provided between the mixing screen and the nozzle.

[0012] Furthermore, a mixing pipe sealing ring is fitted onto one end of the gas-liquid mixing pipe that is close to the mixing screen.

[0013] Furthermore, a sleeve sealing ring is fitted onto one end of the four-way connector that is threadedly connected to the sleeve.

[0014] The beneficial effects achieved by this utility model are as follows:

[0015] This invention significantly increases the foaming volume by setting the orifice diameter of the quick-connect nozzle to 1mm-2mm, thus greatly improving foaming efficiency compared to conventional nozzles. Simultaneously, the use of multi-shaped nozzles (such as single-fan and double-fan nozzles) reduces the number of repeated spraying operations by more than 30% when spraying on a flat surface, effectively improving work efficiency.

[0016] The nozzle of this invention can quickly switch between single-fan and double-fan shapes. Combined with the pressure regulation system of the air inlet regulating valve and the foaming liquid inlet, the equipment can cover various scenarios such as planes, corners, and gaps. It is widely used in cleaning, fire protection, agriculture, car detailing and other fields, which greatly expands the application scope of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is an exploded three-dimensional structural diagram of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the nozzle of this utility model.

[0021] In the diagram, 1. Gas-liquid mixing pipe; 2. Four-way connector; 3. Mixing screen; 4. Nozzle; 401. Single-fan nozzle; 402. Double-fan nozzle; 5. Sleeve; 6. Quick-connect nozzle; 7. Air inlet regulating valve; 8. Foaming liquid inlet; 9. Sealing gasket; 10. Mixing pipe sealing ring; 11. Sleeve sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] Example 1: In this example, a foaming nozzle with quick-switching nozzles includes a gas-liquid mixing pipe 1. One end of the gas-liquid mixing pipe 1 is connected to a four-way connector 2, and the end of the gas-liquid mixing pipe 1 away from the four-way connector 2 is sequentially connected to a mixing screen 3 and a single-fan nozzle 401. A sleeve 5 is provided on the outside of the gas-liquid mixing pipe 1. Both ends of the sleeve 5 are threadedly connected to the four-way connector 2 and the single-fan nozzle 401, respectively, thereby fixing the gas-liquid mixing pipe 1. The end of the four-way connector 2 away from the gas-liquid mixing pipe 1 is threadedly connected to a quick-connect nozzle 6 for easy connection to external pipelines; the upper end of the four-way connector 2 is threadedly connected to an air intake regulating valve 7, which can adjust the air intake volume and control the foam density and spraying pressure; the lower end of the four-way connector 2 is threadedly connected to a foaming liquid inlet 8 for receiving the foaming liquid.

[0027] The quick-connect nozzle 6 has an orifice diameter of 2mm. During operation, the foaming liquid enters through the foaming liquid inlet 8, and the gas enters through the air inlet regulating valve 7. The two are mixed in the gas-liquid mixing pipe 1 and further refined by the mixing screen 3 to form uniform foam, which is then sprayed out through the single-fan nozzle 401. This is suitable for narrow-area, precise spraying scenarios, such as cleaning car crevices and equipment corners. A sealing gasket 9 is provided between the mixing screen 3 and the single-fan nozzle 401 to prevent foam leakage. A mixing pipe sealing ring 10 is fitted at the end of the gas-liquid mixing pipe 1 near the mixing screen 3, and a sleeve sealing ring 11 is fitted at the end of the four-way connector 2 that is threaded to the sleeve 5. This multi-seal structure ensures the system's sealing performance and stability.

[0028] Example 2: This example is basically the same in structure as Example 1, except that the single fan-shaped nozzle 401 is replaced with a double fan-shaped nozzle 402. In large-area planar spraying operations, such as ground disinfection and vehicle foam cleaning, the double fan-shaped nozzle 402 can expand the coverage area, reduce the number of repeated spraying operations, and further improve work efficiency.

[0029] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A foaming nozzle with rapid nozzle switching, characterized in that: The device includes a gas-liquid mixing pipe (1), one end of which is connected to a four-way connector (2), and the other end of which is away from the four-way connector (2) is connected to a mixing screen (3) and a nozzle (4) in sequence. The gas-liquid mixing pipe (1) is provided with a sleeve (5) on the outside. The two ends of the sleeve (5) are threaded to the four-way connector (2) and the nozzle (4) respectively to fix the gas-liquid mixing pipe (1). The other end of the four-way connector (2) away from the gas-liquid mixing pipe (1) is threaded to a quick-connect nozzle (6). The upper end of the four-way connector (2) is threaded to an air inlet regulating valve (7), and the lower end of the four-way connector (2) is threaded to a foaming liquid inlet (8).

2. A foaming nozzle with rapid nozzle switching according to claim 1, characterized in that: The aperture of the quick-connect nozzle (6) is 1mm-2mm.

3. A foaming nozzle with rapid nozzle switching according to claim 1, characterized in that: The nozzle (4) is a single-fan nozzle (401).

4. A foaming nozzle with rapid nozzle switching according to claim 1 or 3, characterized in that: The nozzle (4) is a double-fan nozzle (402).

5. A foaming nozzle with rapid nozzle switching according to claim 1, characterized in that: A sealing gasket (9) is provided between the mixing screen (3) and the nozzle (4).

6. A foaming nozzle with rapid nozzle switching according to claim 1 or 2, characterized in that: A mixing pipe sealing ring (10) is fitted onto one end of the gas-liquid mixing pipe (1) that is close to the mixing screen (3).

7. A foaming nozzle with rapid nozzle switching according to claim 1, characterized in that: The end of the four-way connector (2) that is threaded to the sleeve (5) is fitted with a sleeve sealing ring (11).