nozzle

Abstract

The application discloses a nozzle and belongs to the technical field of fluid injection equipment. The nozzle comprises a nozzle body, a first cavity, a second cavity and a third cavity which are sequentially arranged in the nozzle body, the diameters of the three cavities are sequentially reduced, and steps are arranged between adjacent cavities. The second cavity is provided with an injection cylinder, and the first cavity is provided with a compression ring. The injection cylinder is provided with a second channel, an outer side wall is provided with a third channel, the two channels are communicated through a through hole, and an extension part with a fluid outlet and a guide inclined surface is arranged at the end. The application can reduce pressure loss, improve injection stability and uniformity, is convenient to install, and has a long service life.

Description

Technical Field

[0001] This application relates to the field of fluid jetting equipment technology, and in particular to a nozzle. Background Technology

[0002] In industrial production, nozzles, as a commonly used fluid jetting device, are widely used in various scenarios such as cleaning, spraying, and cooling. Their main function is to eject fluid with a certain pressure through a specific structure to achieve the corresponding process effects.

[0003] Currently, existing nozzle structures are typically quite simple, generally guiding and spraying fluid through a single channel. However, these traditional nozzles have several shortcomings in use. Firstly, the single and insufficiently smooth flow path within the nozzle leads to significant pressure loss during fluid spraying, failing to achieve a stable and high-pressure spray effect, thus affecting work efficiency and quality. Secondly, the assembly of components in traditional nozzles is not tight enough, making them prone to loosening and displacement during long-term use. This not only further exacerbates pressure loss but may also lead to fluid leakage, shortening the nozzle's lifespan and increasing maintenance costs. Utility Model Content

[0004] This invention addresses the problems of existing nozzles, such as high pressure loss, low spray stability and accuracy, easy loosening of components, and short service life, by providing a new type of nozzle.

[0005] The objective of this utility model is mainly achieved through the following solution:

[0006] A nozzle includes a nozzle body, within which a cavity for fluid flow is provided. The cavity is arranged coaxially as a first cavity, a second cavity, and a third cavity along the fluid flow direction. A first step is provided between the first cavity and the second cavity, and a second step is provided between the second cavity and the third cavity. The diameter of the first cavity is larger than the diameter of the second cavity, and the diameter of the second cavity is larger than the diameter of the third cavity. A spray tube is installed in the second cavity, and a clamping ring for clamping the spray tube is installed in the first cavity.

[0007] Preferably, the clamping ring has a first channel for fluid flow in the middle.

[0008] Preferably, the spray nozzle is open at one end facing the first cavity and closed at the other end facing the third cavity, and the interior of the spray nozzle is coaxially provided with a second channel for fluid flow.

[0009] Preferably, the outer wall of the spray cylinder is in close contact with the inner wall of the second cavity, and the outer wall of the spray cylinder is provided with multiple third channels along its length direction. The multiple third channels are evenly arranged circumferentially along the axis of the spray cylinder, and several through holes are provided between the second channel and each third channel. The through holes are evenly arranged along the length direction of the spray cylinder.

[0010] Preferably, the jet tube extends towards one end edge of the third mounting cavity and has an extension portion, the side wall of which has a fluid outlet communicating with the third channel.

[0011] Preferably, the outer wall of the extension is provided with a guide slope.

[0012] Preferably, the outer wall of the nozzle body is provided with an external thread at one end near the first cavity.

[0013] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0014] (1) By setting the cavity into a first cavity, a second cavity and a third cavity with successively decreasing diameters, and in conjunction with the first step and the second step, a gradually contracting fluid channel is formed, which is beneficial to increase the pressure of the fluid during the flow process, reduce pressure loss, and thus enhance the jetting effect;

[0015] (2) In this utility model, the spray cylinder is installed in the second cavity and the clamping ring is installed in the first cavity to clamp the spray cylinder, so that the spray cylinder is not easy to loosen or shift during operation, thus ensuring the stability and reliability of the nozzle structure and extending its service life.

[0016] (3) In this utility model, a second channel is provided inside the spray cylinder and a third channel is provided on the outer side wall, and the two are connected through a through hole, which realizes the diversion and merging of fluid, increases the flow path of fluid in the nozzle, enables the fluid to be mixed and accelerated more fully, and improves the uniformity of spraying.

[0017] (4) The guide slope on the extension in this utility model can guide the installation of the spray tube and facilitate the installation of the spray tube;

[0018] (5) The external thread design on the outer side wall of the nozzle body in this utility model facilitates the installation and disassembly of the nozzle with other equipment and improves the ease of use. Attached Figure Description

[0019] Figure 1 This is a front view of the nozzle of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the nozzle of this utility model;

[0021] Figure 3 This is an exploded view of the nozzle of this utility model.

[0022] Reference numerals: 1-Nozzle body, 2-First cavity, 3-Second cavity, 4-Third cavity, 5-First step, 6-Second step, 7-Injection cylinder, 8-Pressure ring, 9-First channel, 10-Second channel, 11-Third channel, 12-Through hole, 13-Extension, 14-Fluid outlet, 15-Guide slope, 16-External thread. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0024] like Figure 1-3 As shown, this utility model discloses a technical solution: a nozzle, including a nozzle body 1. The nozzle body 1 has a cavity for fluid flow. The cavity consists of a first cavity 2, a second cavity 3, and a third cavity 4, which are coaxial along the fluid flow direction. A first step 5 is provided between the first cavity 2 and the second cavity 3, and a second step 6 is provided between the second cavity 3 and the third cavity 4. The diameter of the first cavity 2 is larger than the diameter of the second cavity 3, and the diameter of the second cavity 3 is larger than the diameter of the third cavity 4, forming a gradually contracting fluid channel. This helps to increase the pressure of the fluid during flow, reduce pressure loss, and thus enhance the spraying effect.

[0025] Specifically, a spray cylinder 7 is installed inside the second cavity 3. The spray cylinder 7 is open at one end facing the first cavity 2 and closed at the other end facing the third cavity 4. A second channel 10 for fluid flow is coaxially opened inside the spray cylinder 7. The outer wall of the spray cylinder 7 is in close contact with the inner wall of the second cavity 3, and the outer wall is provided with twelve third channels 11 along the length direction. These twelve third channels 11 are evenly arranged circumferentially along the axis of the spray cylinder 7. At the same time, nineteen through holes 12 are provided between the second channel 10 and each third channel 11. The through holes 12 are evenly arranged along the length direction of the spray cylinder 7.

[0026] Specifically, the spray cylinder 7 extends integrally with an extension 13 at one end edge facing the third mounting cavity. The inner side wall of the extension 13 has a fluid outlet 14 communicating with the third channel 11. The fluid flows to the third cavity 4 through the fluid outlet 14. A guide slope 15 is provided at the outer side wall edge of the extension 13, which can guide the installation of the spray cylinder 7 and facilitate the installation of the spray cylinder 7.

[0027] Specifically, a clamping ring 8 for pressing the spray cylinder 7 is installed inside the first cavity 2. The clamping ring 8 has a first channel 9 for fluid flow in the middle. In addition, the outer wall of the nozzle body 1 has an external thread 16 near the first cavity 2, which facilitates the installation of the nozzle to the corresponding equipment port. The inner wall of the port has an internal thread, which can realize the threaded connection with the nozzle. The inside of the port has a step. During the rotation installation of the nozzle, the step can squeeze the clamping ring 8, thereby pressing the spray cylinder 7, so that the spray cylinder 7 is not easy to loosen or shift during operation, thus ensuring the stability and reliability of the nozzle structure.

[0028] The working process of this embodiment is as follows: the fluid enters the second channel 10 from the first channel 9, then flows into the third channel 11 through the through hole 12, and is ejected through the fluid outlet 14 and the third cavity 4, and the ejected fluid reaches the target position.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A nozzle, comprising a nozzle body (1), wherein the nozzle body (1) has a cavity for fluid flow, characterized in that: The cavities are arranged in sequence along the flow direction of the fluid as a first cavity (2), a second cavity (3) and a third cavity (4) on the same axis. A first step (5) is provided between the first cavity (2) and the second cavity (3), and a second step (6) is provided between the second cavity (3) and the third cavity (4). The diameter of the first cavity (2) is larger than the diameter of the second cavity (3), and the diameter of the second cavity (3) is larger than the diameter of the third cavity (4). A spray cylinder (7) is installed in the second cavity (3), and a clamping ring (8) for clamping the spray cylinder (7) is installed in the first cavity (2).

2. The nozzle according to claim 1, characterized in that: The compression ring (8) has a first channel (9) for fluid flow in the middle.

3. The nozzle according to claim 2, characterized in that: The spray tube (7) is open at one end facing the first cavity (2) and closed at the other end facing the third cavity (4), and the interior of the spray tube (7) is coaxially provided with a second channel (10) for fluid flow.

4. The nozzle according to claim 3, characterized in that: The outer wall of the spray cylinder (7) is in close contact with the inner wall of the second cavity (3), and the outer wall of the spray cylinder (7) is provided with multiple third channels (11) along its length direction. The multiple third channels (11) are evenly arranged circumferentially along the axis of the spray cylinder (7), and several through holes (12) are provided between the second channel (10) and each third channel (11). The through holes (12) are evenly arranged along the length direction of the spray cylinder (7).

5. The nozzle according to claim 4, characterized in that: The jet tube (7) has an extension (13) extending towards one end edge of the third mounting cavity, and the side wall of the extension (13) has a fluid outlet (14) communicating with the third channel (11).

6. The nozzle according to claim 5, characterized in that: The outer wall of the extension (13) is provided with a guide slope (15).

7. The nozzle according to claim 1, characterized in that: The outer wall of the nozzle body (1) is provided with an external thread (16) at one end near the first cavity (2).

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