Anti-corrosion motor shaft for high-pressure cleaning machine

By employing shaft and fixing components in the design of the high-pressure cleaner, the problem of motor shaft corrosion in humid environments is solved, achieving stable connection and rust prevention of the motor shaft, and extending its service life.

CN224264747UActive Publication Date: 2026-05-19NINGBO YINZHOU YONGCHANG AXIS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO YINZHOU YONGCHANG AXIS CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The rust-resistant motor shafts used in existing high-pressure washers are prone to corrosion in humid, high-pressure environments due to damage to the waterproof layer, leading to decreased mechanical performance, operational jamming, and inconvenient maintenance.

Method used

The design employs a shaft assembly, including a sliding sleeve structure for the motor shaft and auxiliary shaft, combined with fixing components such as fixing rings, limit strips, locking blocks, locking slots, insertion slots, and rubber rings, to ensure stable connection and rust prevention of the motor shaft.

Benefits of technology

It effectively prevents motor shaft corrosion, ensures normal operation, improves the stability and flexibility of the motor shaft, extends its service life, and avoids operational jamming and wear caused by corrosion.

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Abstract

The utility model relates to the technical field of high-pressure cleaning machine equipment, and discloses an anti-corrosion motor shaft for a high-pressure cleaning machine, which comprises a cleaning machine shell, a pump shell is arranged in the cleaning machine shell, a motor is arranged on one side of the pump shell, and a shaft assembly capable of preventing corrosion is arranged at the output end of the motor. A plurality of fixing assemblies arranged in an annular array and used for fixing the shaft assembly are fixedly installed on the shaft assembly, the shaft assembly comprises a motor shaft fixedly installed at the output end of a motor, and one end of the motor shaft is slidably sleeved with an auxiliary shaft; through the arrangement of the shaft assembly and the fixing assembly, a sliding sleeving structure of a motor shaft and an auxiliary shaft in the shaft assembly is convenient to mount and dismount, a waterproof layer of the motor shaft cannot be damaged, the waterproof layer is prevented from being damaged and being prone to rusting in a high-humidity environment, and meanwhile the stability of the shaft assembly is ensured through the fixing assembly; and the normal work of the high-pressure cleaning machine is ensured by the shaft.
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Description

Technical Field

[0001] This utility model relates to the technical field of high-pressure cleaning equipment, and in particular to a rust-proof motor shaft for a high-pressure cleaner. Background Technology

[0002] Currently, rust-resistant motor shafts for high-pressure washers refer to motor shaft components with special rust-resistant capabilities designed for the humid and high-pressure operating environments of high-pressure washers. Their core function is to ensure the mechanical performance and service life of the motor shaft in scenarios involving frequent contact with water, moisture, and potential chemical cleaning agents, preventing operational jamming, accelerated wear, and even motor failure caused by rust.

[0003] During the operation of a high-pressure washer, although the motor shaft has a waterproof layer, such as an electroplated layer, it is often located inside the pump casing. The scouring and abrasion from the water flow can damage this waterproof layer, making it susceptible to corrosion. This affects the mechanical performance and lifespan of the motor shaft, leading to machine malfunctions, accelerated wear, and even motor failure. Existing anti-corrosion measures for motor shafts are complex in structure and inconvenient to maintain, making them insufficient to meet the requirements for long-term stable operation of high-pressure washers. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a rust-resistant motor shaft for a high-pressure washer.

[0005] This utility model is achieved using the following technical solution: a rust-proof motor shaft for a high-pressure washer, comprising a washer housing, a pump housing inside the washer housing, a motor on one side of the pump housing, a shaft assembly at the output end of the motor to prevent rust, and a plurality of fixing components arranged in a circular array to fix the shaft assembly fixedly mounted on the shaft assembly, the shaft assembly including a motor shaft fixedly mounted on the output end of the motor, an auxiliary shaft slidably sleeved on one end of the motor shaft, and an impeller fixedly sleeved on one end of the auxiliary shaft extending to the inner wall of the pump housing.

[0006] Through the above technical solutions, the shaft assembly effectively prevents the motor shaft from rusting upon contact with water, ensuring its normal operation. The fixing component secures the shaft assembly, ensuring its stability during operation. The sliding sleeve structure between the motor shaft and the auxiliary shaft facilitates installation and disassembly, while also improving the flexibility of the shaft assembly.

[0007] As a further improvement to the above solution, the fixing component includes a fixing ring fixedly sleeved on the motor shaft. One side of the fixing ring is provided with a plurality of limiting strips arranged in a circular array. One end of each limiting strip is fixedly installed with a locking block. The auxiliary shaft is provided with a plurality of fixing slots arranged in a circular array at the end near the motor. Each limiting strip is located inside an adjacent fixing slot.

[0008] Through the above technical solution, the cooperation of the fixing ring, limiting strip, locking block and fixing groove realizes the fixed connection between the motor shaft and the auxiliary shaft, improves the overall stability of the shaft assembly and prevents loosening during operation.

[0009] As a further improvement to the above solution, a slot adapted to the card block is provided on one side of the inner wall of each of the fixing slots.

[0010] Through the above technical solution, the matching setting of the slot and the block further enhances the fixing effect of the fixing component, ensuring a more secure connection between the motor shaft and the auxiliary shaft.

[0011] As a further improvement to the above solution, a plurality of insertion slots arranged in a ring array are provided on one side of the fixing ring, and the end of each limiting strip away from the card block extends into the interior of the adjacent insertion slot.

[0012] Through the above technical solution, the insertion slot provides an installation position for the limit strip, ensuring the installation accuracy and stability of the limit strip on the fixing ring, thereby ensuring the normal operation of the fixing component.

[0013] As a further improvement to the above solution, the cylindrical surface of the fixing ring is provided with a plurality of fixing holes arranged in a ring array. Each fixing hole has a fixing post on one side, and one end of each fixing post extends into the interior of the adjacent fixing hole and passes through the adjacent limiting strip.

[0014] With the above technical solution, the fixing post passes through the fixing opening and the limiting strip, fixing the limiting strip to the fixing ring, which further improves the installation firmness of the limiting strip and prevents the limiting strip from shifting during operation.

[0015] As a further improvement to the above solution, a rubber ring is fitted on the cylindrical surface of the fixing ring, and a limiting ring is fixedly fitted on the cylindrical surface of the rubber ring. Threaded posts are provided on both sides of the cylindrical surface of the limiting ring. One end of each threaded post is threaded through the limiting ring and the rubber ring and abuts against the fixing ring. A rotating block is fixedly installed at the other end of each threaded post.

[0016] With the above technical solution, the fixing post is limited by the rubber ring to prevent it from coming off the fixing hole. The rotating block makes it easy for the operator to turn the threaded post to install and remove the rubber ring.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention, by setting up a shaft assembly and a fixing assembly, and the sliding sleeve structure of the motor shaft and auxiliary shaft in the shaft assembly, facilitates installation and disassembly, and prevents damage to the waterproof layer of the motor shaft, thus preventing corrosion in high humidity environments. At the same time, the fixing assembly ensures the stability of the shaft assembly, ensuring the normal operation of the high-pressure washer. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention, which includes a pump casing and a motor;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention with a shaft assembly;

[0022] Figure 4 This is a schematic diagram of the structure of the present invention with a plug-in slot;

[0023] Figure 5 This is a cross-sectional structural diagram of the shaft assembly and fixing assembly of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Cleaning machine housing; 2. Pump housing; 3. Motor; 401. Motor shaft; 402. Auxiliary shaft; 403. Impeller; 501. Fixing ring; 502. Limiting strip; 503. Locking block; 6. Fixing groove; 7. Insertion groove; 8. Fixing column; 9. Rubber ring; 10. Restricting ring; 11. Threaded column. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Please combine Figures 1-5 This embodiment of a rust-proof motor shaft for a high-pressure washer includes a washer housing 1, a pump housing 2 inside the washer housing 1, a motor 3 on one side of the pump housing 2, and a shaft assembly that can prevent rust at the output end of the motor 3. Multiple fixing components arranged in a ring array for fixing the shaft assembly are fixedly installed on the shaft assembly.

[0028] The shaft assembly includes a motor shaft 401 fixedly mounted on the output end of the motor 3. An auxiliary shaft 402 is slidably sleeved on one end of the motor shaft 401. One end of the auxiliary shaft 402 extends to the inner wall of the pump casing 2 and is fixedly sleeved on the impeller 403.

[0029] The shaft assembly effectively prevents the motor shaft 401 from rusting upon contact with water, ensuring the normal operation of the motor shaft 401. The fixing component is used to fix the shaft assembly, ensuring the stability of the shaft assembly during operation. The sliding sleeve structure between the motor shaft 401 and the auxiliary shaft facilitates installation and disassembly, while also improving the flexibility of the shaft assembly.

[0030] The fixing assembly includes a fixing ring 501 fixedly sleeved on the motor shaft 401. One side of the fixing ring 501 has multiple limiting strips 502 arranged in a circular array. A locking block 503 is fixedly installed at one end of each limiting strip 502. The auxiliary shaft 402, near the motor 3, has multiple fixing grooves 6 arranged in a circular array. Each limiting strip 502 is located inside an adjacent fixing groove 6. The cooperation of the fixing ring 501, limiting strips 502, locking block 503, and fixing grooves 6 achieves a fixed connection between the motor shaft 401 and the auxiliary shaft 402, improving the overall stability of the shaft assembly and preventing loosening during operation. The phenomenon is that a slot adapted to the locking block 503 is opened on one side of the inner wall of each fixing groove 6. The matching setting of the slot and the locking block 503 further enhances the fixing effect of the fixing component and ensures that the connection between the motor shaft 401 and the auxiliary shaft 402 is more secure. Multiple insertion slots 7 arranged in a ring array are opened on one side of the fixing ring 501. The end of each limiting strip 502 away from the locking block 503 extends into the interior of the adjacent insertion slot 7. The insertion slot 7 provides an installation position for the limiting strip 502, ensuring the installation accuracy and stability of the limiting strip 502 on the fixing ring 501, thereby ensuring the normal operation of the fixing component.

[0031] The cylindrical surface of the fixing ring 501 has multiple fixing holes arranged in a ring array. Each fixing hole has a fixing post 8 on one side. One end of each fixing post 8 extends into the interior of the adjacent fixing hole and passes through the adjacent limiting strip 502. The fixing post 8 passes through the fixing hole and the limiting strip 502, fixing the limiting strip 502 to the fixing ring 501, which further improves the installation firmness of the limiting strip 502 and prevents the limiting strip 502 from being displaced during operation.

[0032] A rubber ring 9 is fitted on the cylindrical surface of the fixing ring 501, and a limiting ring 10 is fixedly fitted on the cylindrical surface of the rubber ring 9. Threaded posts 11 are provided on both sides of the cylindrical surface of the limiting ring 10. One end of each threaded post 11 is threaded through the limiting ring 10 and the rubber ring 9 and abuts against the fixing ring 501. A rotating block is fixedly installed at the other end of each threaded post 11. The fixing post 8 is limited by the rubber ring 9 to prevent the fixing post 8 from coming off the fixing opening. The rotating block makes it easy for the operator to turn the threaded post 11 to install and remove the rubber ring 9 and the limiting ring 10.

[0033] The implementation principle of a rust-proof motor shaft for a high-pressure cleaner in this application embodiment is as follows: When the shaft assembly needs to be installed, first insert the limiting strip 502 into the insertion slot 7, then insert the fixing post 8 into the fixing port and pass through the limiting strip 502 to further fix the position of the limiting strip 502 on the fixing ring 501.

[0034] Next, the rubber ring 9 and the limiting ring 10 are placed on the cylindrical surface of the fixing ring 501. By turning the threaded post 11, the threaded post 11 is made to pass through the limiting ring 10 and the rubber ring 9 and abut against the fixing ring 501, thereby fixing the position of the rubber ring 9 and the limiting ring 10.

[0035] Next, the auxiliary shaft 402 is fitted onto the motor shaft 401. Then, the fixing groove 6 is aligned with the limiting strip 502 on the motor shaft 401. The auxiliary shaft 402 is pushed so that the limiting strip 502 is inserted into the fixing groove 6, and the locking block 503 is locked into the slot, thus fixing the motor shaft 401 and the auxiliary shaft 402.

[0036] When motor 3 is working, the output end of motor 3 drives motor shaft 401 to rotate, motor shaft 401 drives fixed ring 501 to rotate, thereby causing fixed ring 501 to rotate with limit strip 502. The rotation of limit strip 502 will drive auxiliary shaft 402 to rotate, and auxiliary shaft 402 will drive impeller 403 to rotate in pump casing 2, so as to realize the normal operation of high pressure cleaner.

[0037] Due to the function of the auxiliary ring 402, moisture and impurities are effectively prevented from contacting the motor shaft 401, which enhances the anti-corrosion ability of the motor shaft 401, extends the service life of the motor shaft 401, and the waterproof layer of the motor shaft 401 will not be washed away by water flow, thus preventing damage to the waterproof layer. In this way, it is not easy to rust even in high humidity environment.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A rust-resistant motor shaft for a high-pressure washer, comprising an washer housing (1), wherein a pump housing (2) is disposed inside the washer housing (1), and a motor (3) is disposed on one side of the pump housing (2), characterized in that, The output end of the motor (3) is provided with a shaft assembly that can prevent corrosion. Multiple fixing components arranged in a ring array are fixedly installed on the shaft assembly for fixing the shaft assembly. The shaft assembly includes a motor shaft (401) fixedly installed on the output end of the motor (3). An auxiliary shaft (402) is slidably sleeved on one end of the motor shaft (401). One end of the auxiliary shaft (402) extends to the inner wall of the pump casing (2) and is fixedly sleeved with an impeller (403).

2. The anti-corrosion motor shaft for a high-pressure washer as described in claim 1, characterized in that, The fixing assembly includes a fixing ring (501) fixedly sleeved on the motor shaft (401). One side of the fixing ring (501) is provided with a plurality of limiting strips (502) arranged in a ring array. One end of each limiting strip (502) is fixedly installed with a locking block (503). The auxiliary shaft (402) near the motor (3) has a plurality of fixing grooves (6) arranged in a ring array. Each limiting strip (502) is located inside the adjacent fixing groove (6).

3. The anti-corrosion motor shaft for a high-pressure washer as described in claim 2, characterized in that, Each of the fixing grooves (6) has a slot on one side of its inner wall that is compatible with the locking block (503).

4. The anti-rust motor shaft for a high-pressure washer as described in claim 2, characterized in that, The fixing ring (501) has a plurality of insertion slots (7) arranged in a ring array on one side, and the end of each limiting strip (502) away from the card block (503) extends into the interior of the adjacent insertion slot (7).

5. The anti-rust motor shaft for a high-pressure washer as described in claim 2, characterized in that, The cylindrical surface of the fixing ring (501) has a plurality of fixing holes arranged in a ring array. Each fixing hole has a fixing post (8) on one side. One end of each fixing post (8) extends into the interior of the adjacent fixing hole and passes through the adjacent limiting strip (502).

6. The anti-rust motor shaft for a high-pressure washer as described in claim 2, characterized in that, A rubber ring (9) is fitted on the cylindrical surface of the fixed ring (501), and a limiting ring (10) is fixedly fitted on the cylindrical surface of the rubber ring (9). Threaded posts (11) are provided on both sides of the cylindrical surface of the limiting ring (10). One end of each threaded post (11) is threaded through the limiting ring (10) and the rubber ring (9) and abuts against the fixed ring (501). A rotating block is fixedly installed at the other end of each threaded post (11).