Salt spray testing machine for metal products

Abstract

The utility model discloses a salt spray testing machine for a metal product, and aims to solve the technical problems that in the prior art, when a cover of a salt spray testing machine is directly opened to observe a sample for a short time, salt spray drifts away to cause corrosion damage to external metal equipment and cause certain damage to a human respiratory system. The salt spray testing machine comprises a salt spray testing machine body, a machine cover is installed at the top end of the salt spray testing machine body, a communicating pipe is installed on the outer surface of the machine cover in a penetrating mode, a first air cylinder and a second air cylinder are installed at the two ends of the communicating pipe respectively, a through hole is formed in the end, away from the communicating pipe, of the first air cylinder, and a sliding rod is slidably installed in the through hole; through the design, the cover is kept in a clear and transparent state, workpieces in the salt spray tester body can be directly checked, corrosion damage to external metal equipment or damage to a human respiratory system caused by salt spray drifting when the cover of the salt spray tester is opened for temporarily observing a sample is prevented, and the use safety of the salt spray tester is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of salt spray testing machines, in particular to a salt spray testing machine for metal products. Background Art

[0002] The salt spray tester uses atomized salt water to test the anti-corrosion and anti-rust performance of metal materials. By assessing the salt spray corrosion resistance of materials and their protective layers, and comparing the process quality of similar protective layers, the ability of certain products to resist salt spray corrosion can be assessed. This product is suitable for salt spray corrosion tests of hardware parts, electronic components, protective layers of metal materials, and industrial products. When the salt spray tester is in use, depending on the product material, etc., when the sample needs to be observed briefly, the fog inside the salt spray tester cover is relatively fuzzy. Usually, the salt spray tester cover is opened directly, and the salt mist in the salt spray tester drifts to the outside world. The drifting salt mist causes corrosion damage to external metal equipment and has certain damage to the human respiratory system. Therefore, a new type of salt spray tester for metal products is designed to change the above technical defects. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] In response to the shortcomings of the existing technology, the purpose of this utility model is to provide a salt spray tester for metal products. The salt spray tester is designed to solve the technical problem that when the salt spray tester cover is directly opened to briefly observe the sample under the existing technology, the salt spray drift causes corrosion damage to the external metal equipment and has certain damage to the human respiratory system.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides a salt spray tester for metal products, which includes a salt spray tester body, a machine cover is installed on the top of the salt spray tester body, a connecting pipe is installed through the outer surface of the machine cover, and a first cylinder and a second cylinder are installed at both ends of the connecting pipe, the first cylinder is provided with a through hole at one end away from the connecting pipe, a sliding rod is slidably installed inside the through hole, and an active piston is installed at one end of the sliding rod close to the connecting pipe, a limiting hole is provided at one end of the second cylinder away from the connecting pipe, a push-pull rod is slidably installed inside the limiting hole, and a driven piston is installed at one end of the push-pull rod close to the connecting pipe, a mounting bar is fixedly installed on one end of the push-pull rod away from the second cylinder, and a scraping bar is provided inside the mounting bar, a limiting groove is provided on the outer surface of the scraping bar, a clip is rotatably installed on the outer surface of the mounting bar, and the bottom end of the clip is located inside the limiting groove, the top of the clip is fixedly connected to the outer surface of the mounting bar through an elastic sheet, a handle is rotatably installed on the end of the sliding rod away from the active piston, and a finger groove is provided on the outer surface of the handle.

[0007] When the salt spray tester of the present technical solution is used, fog adheres to the surface of the cover when the salt spray tester body is in use. When the user periodically checks the workpiece inside the salt spray tester body, the user grabs the handle and pulls the slide rod to slide the active piston in the first cylinder to the side away from the connecting pipe. The active piston slides through the connecting pipe to extract the air inside the second cylinder. The air extraction inside the second cylinder generates suction to suck the driven piston and move the push-pull rod to one side of the connecting pipe. The movement of the push-pull rod moves the mounting bar and the scraper bar. The scraper bar moves along the surface of the cover to scrape off the fog on the surface of the cover, so that the cover remains clear. In the transparent state, the internal workpiece of the salt spray tester can be directly viewed to prevent the salt spray tester cover from being opened when the sample is briefly observed, causing corrosion damage to external metal equipment or damage to the human respiratory system, thereby ensuring its safety in use. If there is a lot of fog inside the salt spray tester body, the user can demonstrate how to reduce the amount of spray inside the salt spray tester body. Under the action of the clip, press the top of the clip to rotate it. The elastic sheet is in a compressed state. The clip is rotated and its bottom end is pulled out of the limit slot to remove the scraper from the mounting bar for replacement, making it easy to clean, maintain or replace the scraper.

[0008] Preferably, the bottom end of the clip is fixedly connected with a clamping rod, which is located inside the limiting groove. Through the arrangement of the clamping rod, the clamping rod clamps and fixes the scraper strip as a whole, thereby increasing the stability of the scraper strip.

[0009] Furthermore, a spring is sleeved on the outside of the slide rod, and the two ends of the spring are fixedly connected to the outer surface of the active piston and the inner wall of the first cylinder respectively. Through the arrangement of the spring, the active piston is pushed to reset under the action of the spring force.

[0010] Furthermore, the first cylinder and the second cylinder are provided with positioning buckles on their exteriors, and both ends of the positioning buckles are fixedly connected to the outer surface of the cover. By providing the positioning buckles, the fixing strength of the first cylinder and the second cylinder can be improved, making the first cylinder and the second cylinder more secure.

[0011] Furthermore, the bottom end of the salt spray tester body is equipped with universal wheels. The arrangement of the universal wheels at the bottom end of the salt spray tester body facilitates the movement of the salt spray tester body and makes the salt spray tester body convenient to use.

[0012] Furthermore, a positioning tube is fixedly mounted on the inner wall of the cover, and a positioning rod is slidably mounted inside the positioning tube. The end of the positioning rod, which is away from the positioning tube, is fixedly connected to the outer surface of the mounting bar. The positioning rod and the positioning tube support and position the mounting bar, preventing the mounting bar from sliding and increasing the stability of the mounting bar during sliding.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] When the salt spray tester body of the utility model is in use, fog adheres to the surface of the cover. When the user periodically checks the workpiece inside the salt spray tester body, the user grabs the handle and pulls the slide rod to slide the active piston in the first cylinder to the side away from the connecting pipe. The active piston slides through the connecting pipe to extract the air inside the second cylinder. The air extracted from the second cylinder generates suction to attract the driven piston and move the push-pull rod to one side of the connecting pipe. The movement of the push-pull rod moves the installation bar and the scraper bar. The scraper bar sticks to the surface of the cover and moves to scrape off the fog on the surface of the cover, so that the cover remains clear and transparent. The internal workpiece of the salt spray tester can be directly inspected to prevent the salt spray tester cover from being opened when the sample is briefly observed, causing corrosion damage to external metal equipment or damage to the human respiratory system, thereby ensuring its safety in use. If there is a lot of fog inside the salt spray tester body, the user can show how to reduce the amount of spray inside the salt spray tester body. Under the action of the clip, press the top of the clip to rotate it. The elastic sheet is in a compressed state. The clip is rotated and its bottom end is pulled out of the limit slot to remove the scraper from the mounting bar for replacement, which is convenient for cleaning, maintenance or replacement of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the salt spray testing machine of the utility model;

[0017] Figure 2 This utility model salt spray test machine Figure 1 A in the middle is an enlarged structural diagram;

[0018] Figure 3 This is a schematic diagram of the structure of the cover of the salt spray tester of the utility model when viewed from above;

[0019] Figure 4 This utility model salt spray test machine Figure 3 The enlarged structural diagram at B in the middle;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the second cylinder of the salt spray testing machine of the present utility model;

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of the first cylinder of the salt spray testing machine of the utility model;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the installation strip and scraping strip of the salt spray test machine of the utility model;

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of the clamp and positioning rod of the salt spray test machine of the utility model;

[0024] Figure 9 This is a schematic diagram of the three-dimensional structure of the scraper of the salt spray test machine of the present invention.

[0025] The marks in the accompanying drawings are: 1. Salt spray tester body; 2. Universal wheel; 3. Machine cover; 4. Connecting pipe; 5. First cylinder; 6. Positioning buckle; 7. Through hole; 8. Sliding rod; 9. Handle; 10. Mounting strip; 11. Positioning rod; 12. Positioning tube; 13. Push-pull rod; 14. Second cylinder; 15. Scraper strip; 16. Clip; 17. Elastic sheet; 18. Clamping rod; 19. Driven piston; 20. Limiting hole; 21. Active piston; 22. Spring; 23. Limiting groove. DETAILED DESCRIPTION

[0026] This specific embodiment is a salt spray tester for metal products, and its structural diagram is as follows Figures 1-9 As shown, the salt spray tester includes a salt spray tester body 1, a cover 3 is installed on the top of the salt spray tester body 1, a connecting pipe 4 is installed through the outer surface of the cover 3, and a first cylinder 5 and a second cylinder 14 are installed at both ends of the connecting pipe 4, the first cylinder 5 is provided with a through hole 7 at one end away from the connecting pipe 4, a slide rod 8 is slidably installed inside the through hole 7, and an active piston 21 is installed at the end of the slide rod 8 close to the connecting pipe 4, the second cylinder 14 is provided with a limiting hole 20 at one end away from the connecting pipe 4, a push-pull rod 13 is slidably installed inside the limiting hole 20, and the push-pull A driven piston 19 is installed at the end of the rod 13 close to the connecting pipe 4, and a mounting bar 10 is fixedly installed at the end of the push-pull rod 13 away from the second cylinder 14, and a scraper bar 15 is provided inside the mounting bar 10, and a limiting groove 23 is provided on the outer surface of the scraper bar 15. A clip 16 is rotatably installed on the outer surface of the mounting bar 10, and the bottom end of the clip 16 is located inside the limiting groove 23, and the top of the clip 16 is fixedly connected to the outer surface of the mounting bar 10 through an elastic sheet 17. A handle 9 is rotatably installed on the end of the sliding rod 8 away from the active piston 21, and a finger groove is provided on the outer surface of the handle 9.

[0027] The bottom end of the clip 16 is fixedly connected to a clamping rod 18, which is located within the retaining groove 23. The clamping rod 18 secures the entire scraper 15, increasing its stability. A spring 22 is sleeved around the exterior of the slide bar 8, with its ends fixedly connected to the outer surface of the active piston 21 and the inner wall of the first cylinder 5, respectively. The spring 22 forces the active piston 21 back into position. Positioning buckles 6 are provided on the exterior of the first and second cylinders 5 and 14, with both ends fixedly connected to the outer surface of the cover 3. These buckles enhance the securing strength of the first and second cylinders 5 and 14, making them more secure. Universal wheels 2 are mounted on the bottom end of the salt spray tester body 1. These wheels facilitate movement and make the salt spray tester body 1 convenient to use.

[0028] In addition, a positioning tube 12 is fixedly mounted on the inner wall of the cover 3, and a positioning rod 11 is slidably mounted inside the positioning tube 12. The end of the positioning rod 11 away from the positioning tube 12 is fixedly connected to the outer surface of the mounting bar 10. The positioning rod 11 and the positioning tube 12 support and position the mounting bar 10, preventing the mounting bar 10 from sliding and increasing the stability of the mounting bar 10 when sliding.

[0029] Working principle: When the salt spray tester of the present technical solution is used, fog adheres to the surface of the cover 3 when the salt spray tester body 1 is in use. When the user periodically checks the workpiece in the salt spray tester body 1, the user grabs the handle 9 and pulls the slide rod 8 to slide the active piston 21 in the first cylinder 5 to the side away from the connecting pipe 4. The active piston 21 slides through the connecting pipe 4 to extract the air inside the second cylinder 14. The air extraction inside the second cylinder 14 generates suction to suck the driven piston 19 and the push-pull rod 13 to move to one side of the connecting pipe 4. The push-pull rod 13 moves with the mounting bar 10 and the scraper bar 15. The scraper bar 15 moves against the surface of the cover 3 to scrape off the fog on the surface of the cover 3. , so that the machine cover 3 remains clear and transparent, and the workpiece inside the salt spray test machine body 1 can be directly viewed, preventing the salt spray test machine cover from being opened when the sample is briefly observed, causing corrosion damage to external metal equipment, or damage to the human respiratory system, thereby ensuring its safety in use. If there is a lot of fog inside the salt spray test machine body 1, the user can demonstrate how to reduce the amount of spray inside the salt spray test machine body 1. Under the action of the clip 16, press the top of the clip 16 to rotate it, and the elastic sheet 17 is in a compressed state. The clip 16 rotates its bottom end and is pulled out of the limit groove 23 to remove the scraper strip 15 from the mounting strip 10 for replacement, making it easy to clean, maintain or replace the scraper strip 15.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A salt spray tester for metal products, comprising a salt spray tester body (1), characterized in that: The top of the salt spray tester body (1) is provided with a cover (3), the outer surface of the cover (3) is provided with a connecting pipe (4), and the two ends of the connecting pipe (4) are respectively provided with a first cylinder (5) and a second cylinder (14), the first cylinder (5) is provided with a through hole (7) at one end away from the connecting pipe (4), a sliding rod (8) is slidably installed inside the through hole (7), and an active piston (21) is installed at one end of the sliding rod (8) close to the connecting pipe (4), and a limiting hole (20) is provided at one end of the second cylinder (14) away from the connecting pipe (4), and the limiting hole (20) is slidably installed inside the through hole (7). A push-pull rod (13) is provided, and a driven piston (19) is installed at one end of the push-pull rod (13) close to the connecting pipe (4); a mounting bar (10) is fixedly installed at one end of the push-pull rod (13) away from the second cylinder (14), and a scraper bar (15) is provided inside the mounting bar (10); a limiting groove (23) is provided on the outer surface of the scraper bar (15); a clip (16) is rotatably installed on the outer surface of the mounting bar (10), and the bottom end of the clip (16) is located inside the limiting groove (23); the top end of the clip (16) is fixedly connected to the outer surface of the mounting bar (10) through an elastic sheet (17).

2. The salt spray testing machine for metal products according to claim 1, characterized in that: The bottom end of the clip (16) is fixedly connected to a clamping rod (18), and the clamping rod (18) is located inside the limiting groove (23).

3. The salt spray testing machine for metal products according to claim 2, characterized in that: The outer sleeve of the slide rod (8) is provided with a spring (22), and the two ends of the spring (22) are fixedly connected to the outer surface of the active piston (21) and the inner wall of the first cylinder (5) respectively.

4. The salt spray testing machine for metal products according to claim 3, characterized in that: A handle (9) is rotatably mounted on one end of the slide rod (8) away from the active piston (21), and a finger groove is provided on the outer surface of the handle (9).

5. The salt spray testing machine for metal products according to claim 4, characterized in that: Positioning buckles (6) are provided on the outside of the first cylinder (5) and the second cylinder (14), and both ends of the positioning buckles (6) are fixedly connected to the outer surface of the machine cover (3).

6. The salt spray testing machine for metal products according to claim 5, characterized in that: A universal wheel (2) is installed at the bottom end of the salt spray test machine body (1).

7. The salt spray testing machine for metal products according to claim 6, characterized in that: A positioning tube (12) is fixedly mounted on the inner wall of the cover (3), a positioning rod (11) is slidably mounted inside the positioning tube (12), and one end of the positioning rod (11) away from the positioning tube (12) is fixedly connected to the outer surface of the mounting bar (10).

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