A salt spray test device with self-cleaning function
By introducing a scraper and water washing device into the salt spray test equipment, automatic cleaning of salt spray and salt spray crystals is achieved, solving the problem of frequent manual cleaning of the observation window in the existing technology, and improving the continuity of the test and the accuracy of the data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GAS EQUIP MEASUREMENT & TESTING CENT CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-14
AI Technical Summary
During long-term operation, existing salt spray testing equipment is prone to salt spray and salt spray crystals adhering to the observation window, requiring frequent manual cleaning, which affects the continuity of the test and the accuracy of the data.
Design a self-cleaning salt spray test device that combines a scraper and a water washing device. The scraper is driven by a hand-cranked handle to slide along a transparent window, and cleaning salt water is sprayed from the spray nozzle to achieve automatic cleaning.
It effectively removes salt spray and salt spray crystals from the observation window, ensuring the continuity of the test process and the accuracy of the data, and avoiding interference from frequent opening and closing of the equipment box cover.
Smart Images

Figure CN224500329U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of salt spray testing equipment, and in particular to a salt spray testing equipment with a self-cleaning function. Background Technology
[0002] Salt spray testing is an important method for simulating marine or industrial atmospheric environments to test the corrosion resistance of materials or products. To quickly obtain results regarding the corrosion resistance and service life of metals, corrosion experiments are typically conducted in salt spray test chambers. Currently, salt spray testing equipment is widely used in product quality testing in the automotive, electronics, and aerospace industries.
[0003] With increasing product quality requirements, the need for real-time monitoring of the testing process is growing. When determining the salt spray test duration for samples, it is necessary to observe changes on the sample surface in real-time or intermittently. Existing salt spray test chambers allow observation of the samples inside through a transparent window.
[0004] Salt spray testing equipment commonly suffers from the problem of salt spray and salt spray crystals adhering to the observation window during long-term operation. Manual wiping is used to remove the salt spray and salt spray crystals adhering to the observation window. However, this requires frequently opening the equipment cover of the test chamber to clean the transparent window, which interrupts the test experiment and seriously affects the continuity of the test process and the accuracy of the test data. Utility Model Content
[0005] To address the issue of frequent equipment box openings for cleaning, which interrupts testing and affects experimental continuity and data accuracy, when manually wiping away salt spray and salt spray crystals from the observation window, this application provides a salt spray testing device with a self-cleaning function.
[0006] The salt spray testing equipment with self-cleaning function provided in this application adopts the following technical solution:
[0007] A salt spray testing device with a self-cleaning function is provided. The self-cleaning device is installed inside the equipment box cover and includes a transparent window fixed on the equipment box cover. A rotating handle is provided on the equipment box cover. A receiving frame is fixed on the inner wall of the equipment box cover along the length of the transparent window. One end of the rotating handle rotates on the inner wall of the receiving frame. A slider is threadedly connected to the rotating handle. The slider slides within the receiving frame. A scraper is fixed on the slider. A limiting rod is sleeved on one end of the scraper. The limiting rod is fixed on the inner wall of the equipment box cover. A water washing device for cleaning the transparent window is also provided on the equipment box cover.
[0008] By employing the above technical solution, the operator manually cranks the handle, causing the slider to slide within the receiving frame. The scraper on the slider moves along the length of the transparent window, removing salt spray and salt spray crystals adhering to the surface of the transparent window, thereby keeping the observation window clean and ensuring the clarity of observation and the accuracy of data recording during the experiment. Simultaneously, the limiting rod guides and stabilizes the movement of the scraper, preventing it from deviating during sliding and further improving the cleaning effect.
[0009] Optionally, the scraper is arranged in an inverted triangular shape on the side near the transparent window, and the scraper is fitted to fit the transparent window.
[0010] By adopting the above technical solution, the inverted triangular shape of the scraper near the transparent window effectively gathers salt spray crystals and dirt, making them easier to scrape off and thus improving the cleaning effect. The scraper is fitted snugly to the transparent window, ensuring close contact with the window surface during sliding, further enhancing the thoroughness of the cleaning.
[0011] Optionally, the washing device includes a water storage tank, which is disposed on the outer wall of the equipment box cover.
[0012] By adopting the above technical solution, the water storage tank is connected to the connecting pipe, allowing the clean saline solution in the water storage tank to flow into the connecting pipe, facilitating subsequent operations. Furthermore, the concentration of the clean saline solution in the water storage tank is the same as that in the test chamber.
[0013] Optionally, the washing device further includes a connecting pipe and a plurality of spray nozzles evenly distributed on the connecting pipe. The connecting pipe is fixed between the receiving frame and the transparent window, and the connecting pipe is connected to the bottom of the water storage tank.
[0014] By adopting the above technical solution, the connecting pipe is fixed between the receiving frame and the transparent window, ensuring the stability of the connecting pipe's position and preventing it from affecting the normal sliding of the scraper. Multiple water nozzles are evenly spaced on the connecting pipe, allowing water to flow evenly onto the surface of the transparent window. Combined with the scraping action of the scraper, this effectively removes salt spray and crystals from the transparent window, improving the cleaning effect and observation clarity of the observation window.
[0015] Optionally, one side of the scraper slides on the connecting pipe, and the other side of the scraper slides on the limiting rod.
[0016] By adopting the above technical solution, one side of the scraper slides on the connecting pipe and the other side slides on the limiting rod, so that the scraper can maintain stability and guidance during movement, and avoid the scraper from deviating or shaking during the cleaning process.
[0017] Optionally, the water storage tank is connected to a water injection pipe, and a water injection cap is threaded onto the water injection pipe.
[0018] By adopting the above technical solution, the function of replenishing the water storage tank with clean brine is realized, ensuring the continuous self-cleaning process. The water injection pipe facilitates the connection of external water sources, while the threaded connection of the water injection cap effectively prevents water leakage, while ensuring the structure's airtightness and ease of operation.
[0019] Optionally, a support plate is fixed to the bottom of the water storage tank, and one side of the support plate is fixed to the equipment box cover.
[0020] By adopting the above technical solution, the water storage tank is fixed to the equipment box cover by the bearing plate, which enhances the stability of the water storage tank and effectively prevents the water storage tank from shifting or tipping over due to vibration during equipment operation.
[0021] Optionally, the water storage tank is equipped with a rotary knob for adjusting the water output.
[0022] By adopting the above technical solution, the rotary knob allows users to easily adjust the water output from the storage tank according to their actual needs, thereby controlling the amount of water sprayed from the nozzle. This not only helps improve the cleaning effect but also avoids water waste.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The operator can drive the scraper to move along the length of the transparent window by manually turning the handle, which can effectively scrape off the salt spray and salt spray crystals attached to the surface of the observation window, keep the observation window clean, and thus ensure the continuity of the experiment and the accuracy of data recording.
[0025] 2. The scraper is fitted to the transparent window and combined with the water spray function of the connecting pipe, which can rinse while physically scraping, further improving the cleaning effect and adapting to the use needs in high-concentration salt spray environments;
[0026] 3. The self-cleaning device is located inside the equipment box cover, which can achieve automatic cleaning without stopping the machine or frequently opening and closing the equipment box cover, avoiding interference with the test environment and improving the continuity and stability of the test. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is an overall schematic diagram of the test box provided in the embodiments of this application;
[0029] Figure 2 This is a bottom view of the equipment enclosure cover provided in the embodiment of this application;
[0030] Figure 3 This is a partial structural schematic diagram of the self-cleaning device provided in the embodiments of this application;
[0031] Figure 4 This is a schematic diagram of the connecting pipe and water nozzle provided in the embodiments of this application, used to show that the connecting pipe is located between the receiving frame and the transparent window;
[0032] Figure 5 This is a schematic diagram of the structure of the water storage tank provided in the embodiments of this application.
[0033] Reference numerals in the attached drawings: 1. Equipment box cover; 2. Transparent window; 3. Rotating handle; 4. Receiving frame; 5. Sliding block; 6. Scraper; 7. Limiting rod; 8. Water washing device; 9. Water storage tank; 10. Connecting pipe; 11. Spray nozzle; 12. Water injection pipe; 13. Water injection cover; 14. Support plate; 15. Rotary knob. Detailed Implementation
[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0035] This application discloses a salt spray testing device with self-cleaning function.
[0036] Reference Figure 1 A salt spray test device with self-cleaning function, wherein the self-cleaning device is installed inside the equipment box cover 1, including a transparent window 2 fixed on the equipment box cover 1, the transparent window 2 being used to observe changes on the surface of the test sample.
[0037] The transparent window 2 is made of high-strength glass or polycarbonate material, possessing excellent light transmittance and corrosion resistance. Furthermore, the transparent window 2 is treated with an anti-fog coating to further reduce salt spray adhesion.
[0038] Reference Figure 1 A water washing device 8, including a water storage tank 9, is also provided on the equipment cover 1. A support plate 14 is provided below the water storage tank 9, and one side of the support plate 14 is fixed to the side wall of the equipment cover 1. The support plate 14 is used to support the weight of the water storage tank 9.
[0039] In addition, the water tank 9 contains clean saline solution with the same concentration as the saline solution in the test chamber. The support plate 14 provides a stable platform for the water tank 9, facilitating its placement and use.
[0040] Reference Figure 2A rotating handle 3 is provided on the other side of the equipment box cover 1, and a receiving frame 4 is fixed along the length of the transparent window 2 and above the transparent window 2. One end of the rotating handle 3 rotates on the inner wall of the receiving frame 4, and a slider 5 is threadedly connected to the rotating handle 3.
[0041] Reference Figure 2 A scraper 6 is fixed on the slider 5 along the width direction of the transparent window 2, and a limiting rod 7 is fixed on the bottom of the transparent window 2 along the length direction of the transparent window 2. A limiting opening is provided on the scraper 6 so that it can slide on the limiting rod 7.
[0042] Reference Figure 3 The scraper 6 is made of elastic rubber and has high corrosion resistance. The length of the scraper 6 is slightly larger than the width of the transparent window 2, which ensures that when the slider 5 moves the scraper 6, the scraper 6 can fully cover the width of the transparent window 2 without leaving any cleaning dead corners, greatly improving the cleaning efficiency of the transparent window 2.
[0043] The scraper 6 is arranged in an inverted triangle shape on the side near the transparent window 2. When cleaning the transparent window 2, the tip of the inverted triangle of the scraper 6 can first contact stubborn stains and loosen them, and then the wider part of the scraper 6 can then scrape the stains completely off the surface of the transparent window 2. At the same time, the scraper 6 is set to fit snugly against the transparent window 2, which can closely conform to the surface contour of the transparent window 2, and can achieve good contact on both flat parts and small uneven areas, ensuring thorough cleaning.
[0044] Reference Figure 3 When cleaning of the transparent window 2 is not required, the scraper 6 is located on one side of the transparent window 2, which will not obstruct the staff from observing the internal condition of the test chamber through the transparent window 2.
[0045] Reference Figure 3 When cleaning the transparent window 2 requires scraping, the operator rotates the handle 3, which moves the slider 5 within the receiving frame 4, thereby driving the scraper 6 to move along the length of the transparent window 2. Additionally, the limiting rod 7 restricts the movement trajectory of the scraper 6. The scraper 6 effectively removes salt spray and salt spray crystals adhering to the transparent window 2, allowing the operator to clearly observe the state of the test sample inside the transparent window 2. The operator does not need to open the equipment case cover 1 to observe the test sample, thus avoiding any impact on the accuracy of the test data.
[0046] Reference Figure 4 The washing device 8 also includes a connecting pipe 10, which is located between the transparent window 2 and the receiving frame 4. The connecting pipe 10 is a flexible rubber tube with strong corrosion resistance. Furthermore, the scraper 6 can slide along the connecting pipe 10, thus preventing interference with the connecting pipe 10 during movement.
[0047] Reference Figure 4 The connecting pipe 10 is connected to the bottom of the water storage tank 9, and multiple spray nozzles 11 are evenly spaced on the connecting pipe 10. The spray nozzles 11 adopt a micro-nozzle design to ensure that the cleaning brine is sprayed evenly. The cleaning brine in the water storage tank 9 flows out through the spray nozzles 11, and the connecting pipe 10 is positioned above the transparent window 2, so that the water flows through the spray nozzles 11 and towards the transparent window 2 under the action of gravity.
[0048] Reference Figure 5 A rotary knob 15 for controlling the water output is provided on the water storage tank 9. A water injection pipe 12 is connected to the top of the water storage tank 9, and a water injection cap 13 is threaded onto the water injection pipe 12.
[0049] Reference Figure 5 When a large amount of stubborn salt spray crystals are attached to the transparent window 2, and the scraper 6 alone cannot clean the transparent window 2, the rotary knob 15 can be operated to allow the cleaning salt water in the water tank 9 to flow onto the transparent window 2, so that the cleaning salt water can dissolve the salt spray crystals. Then, the rotary handle 3 can be rotated to drive the scraper 6 to clean the transparent window 2, which can significantly improve the cleaning effect.
[0050] In addition, during the scraping process by the scraper 6, the cleaning salt water will flow along the scraper 6 and the inclined transparent window 2 to the bottom edge of the test chamber, and will not drip onto the surface of the test sample, so it will not affect the test data.
[0051] The implementation principle of a salt spray testing device with self-cleaning function according to an embodiment of this application is as follows: When the observation window is covered with salt spray and salt spray crystals, making it difficult for staff to observe the test sample through the transparent window 2, rotating the rotating handle 3 causes the rotating shaft to drive the slider 5 to move along the groove in the receiving frame 4. The slider 5, through bolts, drives the scraper 6 to slide along the limiting rod 7. The inverted triangular scraper blade of the scraper 6 is in close contact with the surface of the transparent window 2, scraping off the attached salt spray and salt spray crystals, thus achieving automatic cleaning. This not only simplifies the cleaning process but also avoids the inconvenience caused by manual intervention, improving testing efficiency and reliability.
[0052] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0053] 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 salt spray test equipment with self-cleaning function, wherein the self-cleaning device is installed inside the equipment housing cover (1), characterized in that: The device includes a transparent window (2) fixed on the equipment box cover (1), a rotating handle (3) on the equipment box cover (1), a receiving frame (4) fixed on the inner wall of the equipment box cover (1) along the length of the transparent window (2), one end of the rotating handle (3) rotating on the inner wall of the receiving frame (4), a slider (5) threadedly connected to the rotating handle (3), the slider (5) sliding in the receiving frame (4), a scraper (6) fixed on the slider (5), a limiting rod (7) sleeved on one end of the scraper (6), the limiting rod (7) fixed on the inner wall of the equipment box cover (1), and a water washing device (8) for cleaning the transparent window (2) on the equipment box cover (1).
2. The salt spray testing equipment with self-cleaning function according to claim 1, characterized in that: The scraper (6) is arranged in an inverted triangle shape on the side near the transparent window (2), and the scraper (6) is fitted to the transparent window (2).
3. The salt spray testing equipment with self-cleaning function according to claim 1, characterized in that: The washing device (8) includes a water storage tank (9), which is located on the outer wall of the equipment box cover (1).
4. A salt spray testing device with self-cleaning function according to claim 3, characterized in that: The washing device (8) also includes a connecting pipe (10) and a plurality of spray nozzles (11) evenly distributed on the connecting pipe (10). The connecting pipe (10) is fixed between the receiving frame (4) and the transparent window (2). The connecting pipe (10) is connected to the bottom of the water storage tank (9).
5. A salt spray testing device with self-cleaning function according to claim 3, characterized in that: One side of the scraper (6) slides on the connecting pipe (10), and the other side of the scraper (6) slides on the limiting rod (7).
6. A salt spray testing device with self-cleaning function according to claim 3, characterized in that: The water storage tank (9) is connected to a water injection pipe (12), and a water injection cap (13) is threaded onto the water injection pipe (12).
7. A salt spray testing device with self-cleaning function according to claim 3, characterized in that: The bottom of the water storage tank (9) is fixed with a support plate (14), and one side of the support plate (14) is fixed to the equipment box cover (1).
8. A salt spray testing device with self-cleaning function according to claim 3, characterized in that: The water storage tank (9) is equipped with a rotary knob (15) for adjusting the water output.