Anti-blocking water jet nozzle

By combining multi-stage filtration and magnetic filter design, the problem of waterjet nozzle clogging is solved, achieving efficient impurity filtration and convenient maintenance, thus improving the stability and economy of waterjet cutting.

CN224507337UActive Publication Date: 2026-07-17NANJING WUTAI STAINLESS STEEL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING WUTAI STAINLESS STEEL PROD CO LTD
Filing Date
2025-07-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional waterjet nozzles have a simple filtration structure, making it difficult to effectively intercept impurities in the water, especially particles with a diameter close to the nozzle orifice and magnetic materials such as iron filings. This can easily cause the nozzle orifice to become clogged, affecting cutting efficiency and increasing maintenance costs.

Method used

It adopts a multi-stage filtration design, including a primary filter tube and a secondary filter tube, with primary and secondary filter screens installed respectively. A magnetic filter is fixed in the secondary filter tube. The primary filter screen performs preliminary filtration, and the secondary filter screen performs further filtration. The magnetic filter adsorbs impurities such as iron filings, ensuring smooth water flow.

Benefits of technology

It effectively avoids nozzle clogging, improves production efficiency, reduces maintenance burden, decreases downtime frequency, and extends the service life of water jet nozzles.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224507337U_ABST
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Abstract

The utility model relates to water jet nozzle technical field, concretely is a kind of water jet nozzle of anti -blocking, including spray head, the spray head one end is equipped with spray hole, the spray head is remotely connected with secondary filter tube in spray hole one end thread, the secondary filter tube is hollow circular truncated cone type structure, detachably install secondary filter screen in the secondary filter tube inside, the secondary filter tube is remotely connected with primary filter tube in spray head one end thread, detachably install primary filter screen in the primary filter tube inside. Through the detachable connection of primary filter tube and secondary filter tube in spray head one end, and in primary filter tube inside clamping has primary filter screen, in secondary filter tube inside clamping has secondary filter screen, the aperture of secondary filter screen is slightly smaller than the aperture of spray hole, so that when water flow again flows through primary filter tube and secondary filter tube inside, can carry out graded filtration to impurity in water, avoid impurity to block hole, guarantee the water flow smoothness of spray hole, and then guarantee production efficiency.
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Claims

1. A clog-resistant water jet nozzle, comprising a nozzle (1), characterized in that: The nozzle (1) has a spray hole (18) at one end. The nozzle (1) is threaded with a secondary filter tube (2) at the end away from the spray hole (18). The secondary filter tube (2) has a hollow frustum structure. A secondary filter screen (3) is detachably installed inside the secondary filter tube (2). A primary filter tube (4) is threaded with the end away from the nozzle (1). A primary filter screen (5) is detachably installed inside the primary filter tube (4). A magnetic filter (6) is fixedly installed inside the secondary filter tube (2).

2. A non-clogging water jet nozzle according to claim 1, characterized in that: The secondary filter tube (2) has an installation port (7) on one side. A connecting flange (8) is fixedly installed at the top of the installation port (7). The magnetic filter (6) is fixedly connected to the connecting flange (8) by tie bolts (9). A rubber sealing ring (10) is installed between the magnetic filter (6) and the connecting flange (8).

3. A non-clogging water jet nozzle according to claim 2, wherein: The primary filter tube (4) has a hollow cylindrical structure. A first connecting end (11) is fixedly provided at the end of the primary filter tube (4) away from the secondary filter tube (2). The inner wall of the first connecting end (11) is provided with an internal thread.

4. A non-clogging water jet nozzle according to claim 1, wherein: The inner wall of the primary filter tube (4) is fixedly provided with a first retaining ring (12), the outer diameter of the primary filter screen (5) is the same as the outer diameter of the first retaining ring (12), and the primary filter screen (5) is clamped on the side of the first retaining ring (12) near the first connecting end (11).

5. A non-clogging water jet nozzle according to claim 1, wherein: The secondary filter tube (2) is fixedly provided with a second connecting end (13) near the primary filter tube (4). A first anti-seepage gasket (14) is sleeved on the outside of the second connecting end (13), and a second retaining ring (15) is fixedly provided on the inner wall of the second connecting end (13).

6. A non-clogging water jet nozzle according to claim 1, wherein: The outer diameter of the secondary filter (3) is the same as the outer diameter of the second retaining ring (15), and the secondary filter (3) is clamped on the side of the second retaining ring (15) near the primary filter tube (4).

7. A non-clogging water jet nozzle according to claim 5, wherein: The nozzle (1) has a conical structure at one end and a cylindrical structure at the other end. A third connecting end (16) is fixedly provided at the end of the nozzle (1) near the secondary filter screen (3). A second anti-seepage gasket (17) is sleeved on the outside of the third connecting end (16).

8. A non-clogging water jet nozzle according to claim 7, characterized in that: The first and second anti-seepage gaskets (14) are both made of silicone material, and the primary filter (5) and the secondary filter (3) are both made of stainless steel material. The aperture of the secondary filter is slightly smaller than that of the spray hole (18), and the aperture of the primary filter (5) is larger than that of the secondary filter (3).