Aluminum alloy die casting threaded hole cleaning device
By adding a cleaning fluid spraying mechanism and an adjustable-length nozzle structure to the aluminum alloy die-cast thread hole cleaning device, the problem of incomplete cleaning by existing devices has been solved, and efficient cleaning of deep holes has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-04-03
AI Technical Summary
Existing aluminum alloy die-casting thread hole cleaning devices are ineffective at removing oil stains and tiny metal debris adhering to the thread hole walls, and their deep hole cleaning effect is not ideal.
A cleaning device for threaded holes in aluminum alloy die-cast parts was designed. It is equipped with a cleaning liquid spraying mechanism at the bottom of the jet head and an adjustable length nozzle structure. After spraying the cleaning liquid, a high-pressure airflow is used to blow it clean, ensuring the cleaning effect of deep holes.
It improves the cleaning effect of threaded holes, especially deep holes, ensuring that oil and impurities inside the threaded holes are completely removed.
Smart Images

Figure CN224072913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of die casting production equipment, specifically a device for cleaning threaded holes in aluminum alloy die castings. Background Technology
[0002] During die casting production, an aluminum alloy die casting thread hole cleaning device is required. This device is used to remove debris, oil, and other impurities from the thread holes, ensuring the quality and performance of the thread holes and guaranteeing the smooth progress of subsequent assembly processes. Existing cleaning devices include high-pressure air gun cleaning devices, which use high-speed airflow generated by high-pressure gas to blow out impurities from the thread holes.
[0003] Existing aluminum alloy die-cast thread hole cleaning devices still have the following problems when in use: they may not clean thoroughly, that is, the high-pressure airflow may not be able to effectively remove oil stains, sticky impurities and some small metal debris adhering to the thread hole wall, which are easy to remain. In addition, for deeper thread holes, the impact force of the high-pressure airflow will weaken with the increase of depth, resulting in poor cleaning effect inside deep holes. Utility Model Content
[0004] (a) Technical problems to be solved.
[0005] To address the shortcomings of existing technologies, this utility model provides a cleaning device for threaded holes in aluminum alloy die-cast parts, which solves the problems mentioned in the background art.
[0006] (ii) Technical solution.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for threaded holes in aluminum alloy die-castings, comprising a main body structure, a cleaning mechanism at the bottom of the main body structure, an external threaded tube, an air supply mechanism at the top of the external threaded tube, a gripping mechanism at the upper end of the external threaded tube, a limiting ring fixedly connected to the bottom opening of the external threaded tube, and an outer sleeve slidably fitted around the limiting ring. The bottom end of the outer sleeve has a groove for the limiting ring to slide, and the center of the inner top wall of the groove has a threaded groove for the external threaded tube to be threadedly connected. An air jet head is threadedly connected to the lower inner side wall of the groove, and multiple air jet ports are equally spaced around the air jet head. Multiple anti-slip strips are equally spaced above the annular outer side wall of the outer sleeve.
[0008] As a further embodiment of this utility model: a cleaning liquid spraying mechanism is fixedly installed at the center of the inner bottom wall of the jet head. The cleaning liquid spraying mechanism includes an electric sprayer fixedly connected to the bottom end of the jet head. A nozzle is provided at the front end of the electric sprayer, and a feeding tank is threadedly installed at the feeding end of the electric sprayer.
[0009] As a further embodiment of this utility model: the gas supply mechanism includes a connector fixedly connected to the opening above the external threaded pipe, and a gas supply hose is fixedly sleeved on the outer side of the upper interface of the connector.
[0010] As a further embodiment of this utility model: the gripping mechanism includes a fixed sleeve that is fixedly fitted onto the outer wall of the external threaded tube, and a mating hole for the external threaded tube to be fixedly fitted is provided between the upper and lower side walls of one end of the fixed sleeve, and a handle is fixedly connected to the other end of the fixed sleeve.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. In this utility model, by adding an auxiliary cleaning mechanism, namely a cleaning liquid spraying mechanism fixedly installed at the bottom of the jet head, some special cleaning liquid can be used in conjunction with the air gun cleaning work of the jet head. The cleaning liquid is first sprayed into the threaded hole by the cleaning liquid spraying mechanism to dissolve or loosen oil stains and other impurities. Then, the high-pressure airflow from the jet head is used to blow it clean, thereby improving the cleaning effect inside the threaded hole.
[0013] 2. In this utility model, an adjustable-length nozzle structure is designed, which includes an external threaded tube, an outer sleeve connected to the outer threaded tube, and a jet nozzle fixedly installed at the bottom of the outer sleeve. The length of the entire nozzle structure can be adjusted by twisting the outer sleeve. When cleaning deeper threaded holes, the length of the nozzle structure can be adjusted accordingly, so that the high-pressure airflow of the jet nozzle can get closer to the bottom of the threaded hole, thereby improving the cleaning effect of deep holes. Attached Figure Description
[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;
[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;
[0016] Figure 3 This is a perspective view of the main structure of the device of this utility model;
[0017] Figure 4 This is a perspective view of the cleaning mechanism of this utility model.
[0018] In the diagram: 1. Main body of the device; 2. Cleaning mechanism; 11. External threaded pipe; 12. Connector; 13. Air supply hose; 14. Fixing sleeve; 15. Handle; 16. Mating hole; 17. Limiting ring; 21. Outer sleeve; 22. Threaded groove; 23. Slide groove; 24. Anti-slip rubber strip; 25. Air jet head; 26. Air jet nozzle; 27. Electric sprayer; 28. Feed tank; 29. Nozzle. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Please see Figures 1-4 In this embodiment of the present invention, a cleaning device for threaded holes of aluminum alloy die-cast parts includes a main body 1, a cleaning mechanism 2 at the bottom of the main body 1, an external threaded tube 11, an air supply mechanism at the top of the external threaded tube 11, a gripping mechanism at the upper end of the external threaded tube 11, and a limiting ring 17 fixedly connected to the bottom opening of the external threaded tube 11. The cleaning mechanism 2 includes an outer sleeve 21 slidably sleeved on the outside of the limiting ring 17, a groove 23 at the bottom of the outer sleeve 21 for sliding the limiting ring 17, and a threaded groove 22 at the center of the top wall of the groove 23 for threaded connection of the external threaded tube 11. A jet head 25 is threadedly connected to the lower part of the inner wall. Multiple jet nozzles 26 are opened at equal angles around the jet head 25. Multiple anti-slip rubber strips 24 are opened at equal angles on the upper part of the annular outer wall of the outer sleeve 21. The overall design features an adjustable length nozzle structure, which includes an external threaded tube 11. The outer sleeve 21 is threadedly connected to the outer side of the external threaded tube 11. The jet head 25 is fixedly installed at the bottom of the outer sleeve 21. The length of the entire nozzle structure can be adjusted by twisting the outer sleeve 21. When cleaning deeper threaded holes, the length of the nozzle structure can be adjusted accordingly so that the high-pressure airflow of the jet head 25 can get closer to the bottom of the threaded hole, thereby improving the cleaning effect of deep holes.
[0023] A cleaning fluid spraying mechanism is fixedly installed at the center of the inner bottom wall of the jet head 25. The cleaning fluid spraying mechanism includes an electric sprayer 27 fixedly connected to the bottom end of the jet head 25. The front end of the electric sprayer 27 is provided with a nozzle 29, and the rear end of the electric sprayer 27 is threadedly installed with a feeding tank 28. By adding an auxiliary cleaning mechanism, namely, a cleaning fluid spraying mechanism fixedly installed at the bottom end of the jet head 25, some special cleaning fluid can be used in addition to the air gun cleaning work of the jet head 25. The cleaning fluid is first sprayed into the threaded hole through the nozzle 29 of the cleaning fluid spraying mechanism to dissolve or loosen oil stains and other impurities. Then, the high-pressure airflow sprayed from the jet head 25 is used to blow it clean, thereby improving the cleaning effect inside the threaded hole.
[0024] The gas supply mechanism includes a connector 12 fixedly connected to the opening above the external threaded pipe 11. A gas supply hose 13 is fixedly sleeved on the outside of the upper interface of the connector 12. The high-pressure gas delivery pipeline can be connected through the gas supply hose 13. Finally, the high-pressure gas flow is ejected from multiple jet nozzles 26 of the jet head 25.
[0025] The gripping mechanism includes a fixed sleeve 14 that is fixedly sleeved on the outer wall of the external threaded tube 11. A mating hole 16 for the external threaded tube 11 to be fixedly sleeved is opened between the upper and lower side walls of one end of the fixed sleeve 14. A handle 15 is fixedly connected to the other end of the fixed sleeve 14. The entire device can be moved by gripping the handle 15, and the bottom of its cleaning mechanism 2 can be inserted into the threaded hole of the aluminum alloy die-casting part to be cleaned.
[0026] The working principle of this utility model is as follows: the entire device can be moved by holding the handle 15, and the bottom of its cleaning mechanism 2 can be inserted into the threaded hole of the aluminum alloy die-casting part to be cleaned. A high-pressure gas delivery pipe can be connected through the air supply hose 13, and finally the high-pressure airflow is sprayed out from the multiple air nozzles 26 of the jet head 25. The whole device is equipped with an auxiliary cleaning mechanism, namely a cleaning liquid spraying mechanism fixedly installed at the bottom of the jet head 25. In addition to the air gun cleaning work of the jet head 25, some special cleaning liquid can be used in conjunction with it. The cleaning liquid is first sprayed into the threaded hole through the nozzle 29 of the cleaning liquid spraying mechanism. The nozzle dissolves or loosens oil and other impurities inside the hole, and then blows it clean with high-pressure airflow from the nozzle 25, improving the cleaning effect inside the threaded hole. In addition, the overall design features an adjustable nozzle structure, which includes an external threaded tube 11, with an outer sleeve 21 threaded to the outside of the external threaded tube 11. The nozzle 25 is fixedly installed at the bottom of the outer sleeve 21. The length of the entire nozzle structure can be adjusted by twisting the outer sleeve 21. When cleaning deeper threaded holes, the length of the nozzle structure can be adjusted accordingly, so that the high-pressure airflow from the nozzle 25 can get closer to the bottom of the threaded hole, improving the cleaning effect of deep holes.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An aluminum alloy die casting threaded hole cleaning device, comprising a device body mechanism (1), the bottom end of which is provided with a cleaning mechanism (2); characterized in that The device body mechanism (1) comprises an outer threaded pipe (11), the top end of which is provided with an air supply mechanism, the upper end of which is provided with a holding mechanism, and the bottom end of which is fixedly connected with a limiting ring (17) at the opening; The cleaning mechanism (2) comprises an outer sleeve (21) slidingly sleeved outside the limiting ring (17), the bottom end of which is provided with a sliding groove (23) for the limiting ring (17) to slide, and the center of the inner top wall of the sliding groove (23) is provided with a threaded groove (22) for the threaded connection of the outer threaded pipe (11); The inner side wall of the sliding groove (23) is threadedly connected with a jet head (25) below, the jet head (25) is provided with a plurality of jet ports (26) at equal angles around the side, and the inner bottom wall of the jet head (25) is fixedly installed with a cleaning liquid spraying mechanism.
2. An apparatus for cleaning a threaded hole of an aluminum alloy die casting according to claim 1, characterized in that: The air supply mechanism comprises a connector (12) fixedly connected to the opening of the outer threaded pipe (11), and the outer side of the upper end of the connector (12) is fixedly sleeved with an air hose (13).
3. The apparatus of claim 1, wherein: The holding mechanism comprises a fixed sleeve (14) fixedly sleeved outside the outer side wall of the outer threaded pipe (11).
4. An apparatus for cleaning a threaded hole of an aluminum alloy die casting according to claim 3, characterized in that: One end of the fixed sleeve (14) is provided with a matching hole (16) between the upper and lower side walls for the fixed sleeve of the outer threaded pipe (11), and the other end of the fixed sleeve (14) is fixedly connected with a handle (15).
5. The apparatus of claim 1, wherein: The outer sleeve (21) is provided with a plurality of anti-skid rubber strips (24) at equal angles around the upper side wall.
6. The apparatus of claim 1, wherein: The cleaning liquid spraying mechanism comprises an electric sprayer (27) fixedly connected to the bottom end of the jet head (25).
7. An apparatus for cleaning a threaded hole of an aluminum alloy die casting according to claim 6, characterized in that: The front end of the electric sprayer (27) is provided with a nozzle (29), and the rear end of the electric sprayer (27) is threadedly installed with a feeding tank (28) at the feeding position.