Quick nozzle replacing device of high-pressure wool washing machine

By using the sliding fit structure of the limiting guide block and the guide groove, combined with the water flow pressure self-locking design, the problems of time-consuming disassembly and assembly and loosening under the traditional threaded connection method are solved, and the nozzle can be installed quickly and securely.

CN224074263UActive Publication Date: 2026-04-03JIANGSU FUXIN MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The threaded connection of the nozzles in traditional high-pressure punching machines makes disassembly and assembly time-consuming and laborious, and they are prone to loosening under the impact of high-pressure water flow, affecting the operating efficiency and sealing of the equipment.

Method used

It adopts a sliding fit structure of limit guide block and guide groove, combined with the design of external and internal threads, and uses water flow pressure to achieve rapid positioning and self-locking of nozzle, reducing reliance on threads.

Benefits of technology

It enables rapid installation and stable fixation of the nozzle, reduces thread wear, and improves equipment operating efficiency and sealing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a quick nozzle replacing device of a high-pressure hair washing machine, which comprises a connecting pipe and a nozzle mounting seat, two limiting guide blocks are symmetrically and fixedly arranged on two sides of the inner wall of the connecting pipe, an annular groove is arranged on the outer wall of the nozzle mounting seat, guide grooves are arranged on two sides of the inner wall of the annular groove, and the guide grooves are matched with the limiting guide blocks. According to the utility model, through a sliding guide and thread locking structure, the limiting guide blocks are arranged on the inner wall of the connecting pipe and are in sliding fit with the guide grooves in the outer wall of the nozzle mounting seat, so that the nozzle can be quickly aligned and mounted; an external thread is arranged in an annular groove of the nozzle mounting seat, a corresponding internal thread is arranged on the outer side of the limiting guide block, and the limiting guide block is screwed down after sliding alignment, so that stable locking is realized. However, under the action of high-pressure water, the annular groove structure of the nozzle mounting seat can enhance the clamping effect by using the pressure of water flow, so that the stability of the nozzle can be kept even if the nozzle does not completely depend on threaded connection.
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Description

Technical Field

[0001] This utility model relates to a quick nozzle replacement device, and more particularly to a quick nozzle replacement device for a high-pressure punching machine. Background Technology

[0002] The nozzle of the high-pressure scrubbing machine is one of the core components of the equipment. It is mainly used to impact the surface of materials with high-pressure water jets to remove oxide layers, dirt, or roughen the surface.

[0003] Replacement time: Traditional threaded connection requires workers to use tools to gradually disassemble the nozzle. When the thread is long, disassembly and assembly are time-consuming and laborious, affecting the operating efficiency of the equipment. Traditional threaded connection relies entirely on the thread to withstand the impact of high-pressure water flow. This not only leads to accelerated thread wear, but may also cause the thread to loosen due to long-term high pressure, affecting the stability and sealing of the nozzle.

[0004] It should be noted that the above content falls within the scope of the technical knowledge of the utility model owner and does not necessarily constitute prior art. Utility Model Content

[0005] To solve the above problems, the purpose of this utility model is to provide a quick nozzle replacement device for a high-pressure punching machine;

[0006] To achieve the above objectives, this utility model proposes a quick nozzle replacement device for a high-pressure punching machine, including a connecting pipe and a nozzle mounting base:

[0007] Two limiting guide blocks are symmetrically fixed on both sides of the inner wall of the connecting pipe. An annular groove is opened on the outer wall of the nozzle mounting seat. Guide grooves are opened on both sides of the inner wall of the annular groove. The two limiting guide blocks are slidably connected to the corresponding guide grooves. The inner wall of the annular groove is provided with external threads, and the outer walls of the two limiting guide blocks are provided with internal threads. A nozzle is connected to one end of the nozzle mounting seat.

[0008] In one example, the size of the external thread matches the size of the internal thread.

[0009] In one example, the width of the annular groove and the width of the guide groove are the same as the width of the limiting guide block.

[0010] In one example, a first marker is provided at the connection port of the connecting pipe, and a second marker is provided at the position of the nozzle mounting seat opposite to the position of the connecting pipe.

[0011] The quick nozzle replacement device for a high-pressure punching machine proposed in this utility model can bring the following beneficial effects:

[0012] This invention utilizes a sliding guide and threaded locking structure. A limiting guide block is set on the inner wall of the connecting pipe, which slides and engages with the guide groove on the outer wall of the nozzle mounting seat, enabling rapid alignment and installation of the nozzle. The nozzle mounting seat has an external thread in its annular groove, and the limiting guide block has a corresponding internal thread on its outer side. After sliding alignment, it is rotated and tightened to achieve stable locking. However, under high-pressure water, the annular groove structure of the nozzle mounting seat can utilize the pressure of the water flow to enhance its own clamping effect, allowing the nozzle to maintain stability even if it does not completely rely on the threaded connection. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connecting pipe of this utility model;

[0016] Figure 3 This is a schematic diagram of the nozzle mounting base of this utility model.

[0017] In the diagram: 1. Connecting pipe; 2. Nozzle mounting seat; 3. Second marking plate; 4. First marking plate; 5. Limiting guide block; 6. Internal thread; 7. Guide groove; 8. External thread; 9. Nozzle; 10. Ring groove. Detailed Implementation

[0018] To more clearly illustrate the overall concept of this utility model, a detailed description is provided below with reference to the accompanying drawings.

[0019] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are 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 are not intended to 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.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0023] like Figures 1-3 As shown, an embodiment of this utility model proposes a quick nozzle replacement device for a high-pressure punching machine, including a connecting pipe 1 and a nozzle mounting base 2:

[0024] Two limiting guide blocks 5 are symmetrically fixed on both sides of the inner wall of the connecting pipe 1. An annular groove 10 is formed on the outer wall of the nozzle mounting seat 2. Guide grooves 7 are formed on both sides of the inner wall of the annular groove 10. The two limiting guide blocks 5 are slidably connected to the corresponding guide grooves 7. The material hardness of the limiting guide blocks 5 is higher than that of the nozzle mounting seat 2 to reduce wear caused by long-term sliding friction and ensure long-term stable use. The inner wall of the annular groove 10 is provided with external threads 8, and the outer walls of the two limiting guide blocks 5 are provided with internal threads 6. A nozzle 9 is connected to one end of the nozzle mounting seat 2. Under the action of high-pressure water flow, the annular groove 10 structure of the nozzle mounting seat 2 can form a radial locking force, so that the nozzle 9 automatically fits tightly against the connecting pipe 1, further improving the sealing and stability, thereby reducing the necessity of complete thread locking and reducing the impact load on the thread.

[0025] The dimensions of the external thread 8 are matched with the dimensions of the internal thread 6. The external thread 8 and the internal thread 6 adopt trapezoidal or square threads during the engagement process to provide a larger force-bearing area, reduce stress concentration, and avoid thread wear or stripping problems caused by long-term use.

[0026] The width of the annular groove 10 and the width of the guide groove 7 are the same as the width of the limiting guide block 5. The sliding connection between the limiting guide block 5 and the guide groove 7 adopts a high-precision machining method to ensure that the fit clearance is reasonable, so that it can achieve smooth sliding and will not cause the nozzle mounting seat 2 to shift or loosen under high pressure due to excessive clearance.

[0027] A first marker 4 is provided at the connection port of the connecting pipe 1, and a second marker 3 is provided at the position opposite to the nozzle mounting base 2 and the connecting pipe 1. The first marker 4 and the second marker 3 are made of high-contrast material and are set in an easily observable position to ensure that the installer can quickly and accurately determine whether the nozzle 9 is correctly installed.

[0028] Working principle: First, the nozzle mounting seat 2 is slidably inserted into the limiting guide block 5 along the inner wall of the connecting pipe 1, so that the guide groove 7 is aligned with the limiting guide block to achieve quick alignment; after the nozzle mounting seat 2 is slid into place, the nozzle mounting seat 2 is rotated so that its external thread 8 engages with the internal thread 6 of the limiting guide block 5 to complete the self-locking fixation; during installation, the alignment of the first mark 4 and the second mark 5 can be used to determine whether the nozzle 9 is installed correctly, avoiding equipment failure caused by incorrect installation; under the action of high-pressure water flow, the annular groove 10 of the nozzle mounting seat 5 will be subjected to water pressure, forcing the nozzle 9 to fit more tightly against the limiting guide block 5 of the connecting pipe, thereby forming a stable self-locking effect, so that even if the nozzle 9 is not fully tightened, it can remain stable and not fall off.

[0029] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0030] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A high-pressure wool brushing machine nozzle quick replacement device, comprising a connecting pipe (1) and a nozzle mounting seat (2): characterized in that Two limiting guide blocks (5) are symmetrically arranged on the inner wall of the connecting pipe (1), an annular groove (10) is formed on the outer wall of the nozzle mounting seat (2), guide grooves (7) are formed on the inner wall of the annular groove (10), the two limiting guide blocks (5) are in sliding connection with the corresponding guide grooves (7), the inner wall of the annular groove (10) is provided with external threads (8), the outer wall of the two limiting guide blocks (5) is provided with internal threads (6), and one end of the nozzle mounting seat (2) is in communication with a nozzle (9).

2. A high pressure bearding machine nozzle quick change device according to claim 1, characterized in that: The size of the external threads (8) matches the size of the internal threads (6).

3. A high pressure bearding machine nozzle quick change device as claimed in claim 1 wherein: The width of the annular groove (10) and the width of the guide groove (7) are the same as the width of the limiting guide block (5).

4. A high pressure bearding machine nozzle quick change device as claimed in claim 1 wherein: A first marker sheet (4) is arranged at the connecting port position of the connecting pipe (1), and a second marker sheet (3) is arranged at the position opposite to the connecting pipe (1) of the nozzle mounting seat (2).