Foam nozzle for sprayer and foam sprayer

Abstract

The utility model relates to the technical field of sprayers, and discloses a foam nozzle for a sprayer, the sprayer comprises an upper pipe body (1), an inner pipe body (2) arranged in the upper pipe body (1), an atomizing nozzle (3) connected with the inner pipe body (2), and a nozzle body (4) detachably arranged on the atomizing nozzle (3), the nozzle body (4) is internally provided with a foam spraying channel and an oil spraying port (5), and the inner pipe body (2) and the atomizing nozzle (3) are detachably arranged on the nozzle body (4). The foam spraying channel comprises a liquid inlet channel (601), a spiral channel (602) and a reducing channel (603) which are communicated with one another in sequence, the reducing channel (603) is communicated with the oil spraying opening (5), and the inner diameter of the spiral channel (602) and the inner diameter of the reducing channel (603) are gradually reduced in the direction towards the oil spraying opening (5) so that foam can be sprayed out; the foam nozzle can be directly installed on an existing sprayer, achieves efficient foam spraying, is simple in structure and can be installed and used at any time.

Description

Technical Field

[0001] The utility model relates to the field of spray equipment, in particular to a foam nozzle for a sprayer and a foam sprayer. Background Art

[0002] With the continuous advancement of science and technology, there are more and more types of spray equipment, and handheld spray equipment is the most widely used. Handheld spray equipment can be divided into water sprayers, foam sprayers and oil sprayers according to the different nozzles installed. Foam sprayers are often used for detergents. The existing sprayer is assembled into a foam sprayer with a foam nozzle, but the existing foam nozzle has a complex structure and cannot be temporarily installed and used; and the sprayed foam has a low mixing uniformity and a poor spraying effect. The applicant previously designed an oil spray nozzle and an oil sprayer for a sprayer (application number is 202321593842.3), which realizes efficient oil spray mist by detachably installing the oil spray nozzle body on the atomizing nozzle. On this basis, a foam nozzle with a simple structure that can be directly installed on an existing sprayer is further designed. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a foam nozzle for a sprayer, which can be directly installed on an existing sprayer to achieve efficient foam spraying, has a simple structure, and can be installed and used at any time; and also provides a foam sprayer with a foam nozzle.

[0004] In order to achieve the first purpose, the utility model provides the following technical solutions:

[0005] A foam nozzle for a sprayer. The sprayer comprises an upper tube body, an inner tube body arranged in the upper tube body, and an atomizing nozzle connected to the inner tube body. The sprayer comprises a nozzle body detachably arranged on the atomizing nozzle. The nozzle body is provided with a foaming channel and an oil spraying port therein. The foaming channel comprises a liquid inlet channel, a spiral channel and a reduced diameter channel which are sequentially connected to each other. The reduced diameter channel is connected to the oil spraying port. The inner diameters of the spiral channel and the reduced diameter channel are gradually reduced in the direction of the oil spraying port. The spiral channel guides the liquid to rotate. The centrifugal force generated by the rotation drives the liquid to be fully dispersed and mixed with air, so that the liquid obtains a good mixing effect and the foam is more stable when sprayed from the nozzle body.

[0006] Preferably, a trumpet-shaped expansion nozzle is provided outside the fuel injection port, and a gap is provided between the expansion nozzle and the fuel injection port to increase the space for air to enter.

[0007] Preferably, a plug-in slot is provided on the nozzle body for detachable connection with the atomizing nozzle.

[0008] Preferably, it also includes a grid foaming piece arranged in the liquid inlet channel, and a mesh screen is provided at the end of the grid foaming piece, so that the liquid in the sprayer can be dispersed through the grid foaming piece and mixed with air to form rich, dense and stable foam.

[0009] Preferably, an annular groove is provided on the tube wall of the liquid inlet channel, and an annular protrusion matching the annular groove is provided on the grid foam piece, and the annular protrusion is inserted into the annular groove to fix the grid foam piece.

[0010] In order to achieve the second purpose, the utility model provides the following technical solutions:

[0011] A foam sprayer comprises the foam nozzle mentioned above.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The foam nozzle of the utility model can be directly installed on the existing sprayer to achieve efficient foam spraying, has a simple structure, can be installed and used at any time, and realizes lightweight foam spraying; the arranged grid foaming part disperses the liquid in the sprayer, mixes and impacts with the air to form rich, dense and stable foam, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 1 is a schematic diagram of the structure of the foam nozzle for the sprayer. FIG.

[0015] Figure 2 This is a schematic diagram of the structure of the foam nozzle for the sprayer II.

[0016] Figure 3 The figure is a cross-sectional view of the foam nozzle for the sprayer.

[0017] Figure 4 The figure is an exploded cross-sectional view of the foam nozzle for the sprayer.

[0018] Figure 5 It is the structural schematic diagram of this foam sprayer.

[0019] Figure 6 This is a schematic diagram of the disassembled structure of the foam sprayer.

[0020] Figure 7 This is a cross-sectional view of the foam sprayer.

[0021] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0022] In the accompanying drawings: 1-upper tube body, 2-inner tube body, 3-atomizing nozzle, 4-nozzle body, 401-plug-in groove, 402-annular groove, 5-injection port, 601-liquid inlet channel, 602-spiral channel, 603-reducing channel, 7-expanding nozzle, 701-gap, 8-grid foaming part, 81-mesh screen, 82-annular protrusion. DETAILED DESCRIPTION

[0023] Embodiment 1: A preferred embodiment of the utility model provides a foam nozzle for a sprayer, the sprayer comprises an upper tube body 1, an inner tube body 2 arranged in the upper tube body 1, and an atomizing nozzle 3 connected to the inner tube body 2, comprising a nozzle body 4 detachably arranged on the atomizing nozzle 3, a plug-in slot 401 is provided on the nozzle body 4, a plug-in portion matching the plug-in slot 401 is provided on the atomizing nozzle 3, the plug-in portion is plugged into the plug-in slot 401 for detachable connection between the nozzle body 4 and the atomizing nozzle 3. The nozzle body 4 is provided with a foaming channel and an oil injection port 5 therein, the foaming channel comprises a liquid inlet channel 601, a spiral channel 602 and a reduced diameter channel 603 which are sequentially connected to each other, the reduced diameter channel 603 is connected to the oil injection port 5, and the inner diameters of the spiral channel 602 and the reduced diameter channel 603 are gradually reduced in the direction toward the oil injection port 5 to realize foam spraying. The spiral channel 602 guides the liquid to rotate, and the centrifugal force generated by the rotation drives the liquid to be fully dispersed and mixed with the air, so that the liquid obtains a good mixing effect, and the foam is more stable when sprayed out from the nozzle body.

[0024] Embodiment 2: A preferred embodiment of the utility model provides a foam nozzle for a sprayer, which differs from the above embodiments only in that a trumpet-shaped expansion nozzle 7 is provided outside the oil injection port 5, and a gap 701 is provided between the expansion nozzle 7 and the oil injection port 5 to increase the air entry space.

[0025] Embodiment 3: A preferred embodiment of the utility model provides a foam nozzle for a sprayer, which differs from the above embodiments only in that it also includes a grid foaming member 8 arranged in the liquid inlet channel 601, and a mesh screen 81 is provided at the end of the grid foaming member 8 to allow the liquid in the sprayer to be dispersed through the grid foaming member 8 and mixed with air to form rich, dense and stable foam.

[0026] Embodiment 4: A preferred embodiment of the utility model provides a foam nozzle for a sprayer, which differs from the above-mentioned embodiments only in that an annular groove 402 is provided on the tube wall of the liquid inlet channel 601, and an annular protrusion 82 matching the annular groove 402 is provided on the grid foam part 8, and the annular protrusion 82 is inserted into the annular groove 402 to fix the grid foam part 8, and the grid foam part 8 can also be disassembled and replaced at any time.

Claims

1. A foam nozzle for a sprayer, the sprayer comprising an upper tube body (1), an inner tube body (2) arranged in the upper tube body (1), and an atomizing nozzle (3) connected to the inner tube body (2), characterized in that: The invention comprises a nozzle body (4) which is detachably arranged on an atomizing nozzle (3), wherein a foaming channel and an oil spraying port (5) are arranged in the nozzle body (4), wherein the foaming channel comprises a liquid inlet channel (601), a spiral channel (602) and a reduced diameter channel (603) which are connected to each other in sequence, wherein the reduced diameter channel (603) is connected to the oil spraying port (5), and the inner diameters of the spiral channel (602) and the reduced diameter channel (603) are gradually reduced in a direction toward the oil spraying port (5) so as to spray foam.

2. A foam nozzle for a sprayer according to claim 1, characterized in that: A trumpet-shaped expansion nozzle (7) is provided outside the oil injection port (5), and a gap (701) is provided between the expansion nozzle (7) and the oil injection port (5) to increase the air inlet space.

3. A foam nozzle for a sprayer according to claim 1, characterized in that: The nozzle body (4) is provided with a plug-in slot (401) for detachably connecting with the atomizing nozzle (3).

4. A foam nozzle for a sprayer according to claim 1, 2 or 3, characterized in that: It also includes a grid foaming member (8) disposed in the liquid inlet channel (601), and a mesh screen (81) is provided at the end of the grid foaming member (8) so that the liquid in the sprayer and the air are mixed and impacted to form foam bubbles.

5. A foam nozzle for a sprayer according to claim 4, characterized in that: An annular groove (402) is provided on the tube wall of the liquid inlet channel (601), and an annular protrusion (82) matching the annular groove (402) is provided on the grid foam piece (8), and the annular protrusion (82) is inserted into the annular groove (402) to fix the grid foam piece (8).

6. A foam sprayer, characterized in that: The foam nozzle comprises the foam nozzle according to any one of claims 1 to 5.

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