A rack corrosion tester capable of automatic liquid supplement
By designing automatic liquid replenishment and workpiece stabilization, the problem of data deviation caused by liquid evaporation in corrosion testing equipment is solved, achieving accuracy and stability of experimental data, adapting to the fixation of different workpieces, and preventing equipment damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN SHENGYOU TECHNOLOGY CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-24
AI Technical Summary
In existing corrosion testing equipment, the test liquid continuously evaporates due to circulation during testing, causing the internal liquid level to fall short of the simulated target, resulting in deviations in the test data.
A benchtop corrosion tester with automatic liquid replenishment was designed. The support plate is divided into two test areas by a partition plate. The liquid level detection rod detects liquid evaporation and automatically replenishes the liquid. Valves control the liquid replenishment in the independent areas. Combined with the top plate and fixed seat to clamp the workpiece, the impact of liquid evaporation on the experiment is reduced.
To ensure the accuracy and continuity of experimental data, reduce workpiece exposure due to insufficient liquid, increase the stability and safety of testing, adapt to the fixation of workpieces of different shapes, and prevent liquid splashing from damaging the equipment.
Smart Images

Figure CN224553039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of materials testing, specifically a benchtop corrosion tester capable of automatic liquid replenishment. Background Technology
[0002] A bench corrosion tester is a device used to evaluate the corrosion resistance of materials such as metals. By simulating a specific corrosion environment, it allows the test piece to be in continuous contact with the test liquid, and by controlling parameters such as temperature and flow rate, it monitors the changes of the material during dynamic or static corrosion processes.
[0003] During testing, the pre-treated, polished, cleaned, and weighed samples are first placed into the testing equipment. Then, the equipment is started, and parameters such as temperature and flow rate are adjusted to simulate the target corrosion environment. The condition of the sample is observed regularly during the process. After the test, the sample is taken out, and its corrosion degree is analyzed by weighing and observing the corrosion morphology to complete the corrosion resistance performance evaluation.
[0004] In existing corrosion testing equipment, the test liquid continuously evaporates due to circulation during testing, eventually causing the internal liquid level to fall below the simulated target, resulting in deviations in the test data. Therefore, to address the above problem, a benchtop corrosion analyzer capable of automatic liquid replenishment is proposed. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A benchtop corrosion tester capable of automatic liquid replenishment, comprising a support plate; a tester body is disposed at the top of the support plate; a partition plate is fixedly connected to the middle of the tester body; a pair of circulating pumps are fixedly connected to the side wall of the tester body; a pair of first support rods are fixedly connected to the top of the support plate; a fixing rod is disposed on the side wall of the first support rod; a liquid level detection rod is fixedly connected to the bottom end of the fixing rod; a container is disposed at the top of the support plate; a water pump is fixedly connected to the top of the container; a support frame is fixedly connected to the top of the support plate; the support frame is disposed between the container and the tester body; the water pump is connected to the support frame; the support... A pair of valves are fixed to the top of the frame; a pair of drain pipes are fixed to the side wall of the support frame; the drain pipes are connected to the inside of the tester body; the inside of the support plate is divided into two test areas by a partition plate, which can simultaneously place two sets of workpieces for corrosion measurement, reducing the impact of batch testing on experimental results due to changes in ambient temperature, and ensuring the comparability of the two sets of data. When the liquid level detection rod detects that the liquid has decreased due to evaporation, the water pump automatically draws liquid from the container and replenishes it to the inside of the tester body through the drain pipe, which can reduce the exposure of workpieces to air due to insufficient liquid, and ensure the accuracy and continuity of experimental data. A pair of valves can control the liquid replenishment of the two test areas respectively, increasing independent control during testing.
[0007] Preferably, a top plate is fixedly connected to the bottom end of the tester body; a slide rod is slidably connected to the bottom end of the tester body; a first bolt is threaded to the top end of the slide rod; a fixed seat is fixedly connected to the side wall of the slide rod; a top block is fixedly connected to the side wall of the fixed seat; by using the cooperation of the top plate and the fixed seat to clamp the workpiece, the movement of the test workpiece caused by the impact force when the liquid inside the tester body circulates can be reduced, further increasing the stability during testing. Extending the length of the slide rod to the top position of the tester body can reduce the contact between the workpiece and the liquid inside the support plate when fixing it, thus increasing the safety of the test.
[0008] Preferably, a second support rod is fixedly connected to the side wall of the slide rod; a hanging rope is fixedly connected to the bottom end of the second support rod; a hook is fixedly connected to the bottom end of the hanging rope; the workpiece can be lifted and placed by the hook, which can accommodate workpieces of different shapes and sizes, and further increase the applicability of the workpiece when it is fixed inside the tester.
[0009] Preferably, a marking line is fixed to the side wall of the first support rod; a second bolt is threaded to the top of the first support rod; the second bolt is rotatably connected to the fixing rod; the fixing rod is slidably connected to the first support rod; by rotating the second bolt, the fixing rod can be slidably adjusted, thereby adjusting the overall height of the liquid level detection rod. The detection liquid level value can be set according to the liquid level requirements of different test scenarios, and the accuracy of the liquid level detection rod setting can be increased in conjunction with the marking line.
[0010] Preferably, a protective plate is fixed to the side wall of the tester body; a trough is fixed to the bottom of the protective plate; the protective plate can prevent liquid from splashing during circulation due to the circulation pump, thereby reducing damage to the equipment caused by liquid splashing onto the outside of the tester body.
[0011] Preferably, a pair of rubber pads are fixed to the top of the tester body; a rubber pad is fixed to the bottom of the first bolt; by cooperating with the rubber pad at the bottom of the first bolt and the rubber pad at the top of the tester body, the friction of the first bolt when fixing the slide bar can be increased, reducing the loosening of the first bolt due to low friction, which would cause the slide bar to slide, and further increasing the effect of the workpiece during testing.
[0012] The advantages of this utility model are:
[0013] 1. The automatic liquid replenishment bench corrosion tester of this utility model divides the interior of the support plate into two test areas by a partition plate, allowing two sets of workpieces to be placed simultaneously for corrosion testing. This reduces the impact of batch testing on experimental results due to changes in ambient temperature, ensuring the comparability of the two sets of data. When the liquid level detection rod detects that the liquid has decreased due to evaporation, the water pump automatically draws liquid from the container and replenishes it to the interior of the tester through the drain pipe. This reduces the exposure of workpieces to air due to insufficient liquid, ensuring the accuracy and continuity of experimental data. A pair of valves can control the liquid replenishment of the two test areas separately, increasing independent control during testing.
[0014] 2. The automatic liquid replenishment bench corrosion tester of this utility model clamps the workpiece by means of a top plate and a fixed base, which can reduce the movement of the test workpiece caused by the impact force when the liquid inside the tester body circulates, and further increase the stability during the test. The length of the slide bar is extended to the top position of the tester body, which can reduce the contact between the fixed workpiece and the liquid inside the support plate, and increase the safety of the test. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the main body of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the protective plate in this utility model;
[0018] Figure 3 This is a schematic diagram of the top block in this utility model;
[0019] Figure 4 This is a schematic diagram of the liquid level detection rod in this utility model;
[0020] Figure 5 This is a schematic diagram of the valve structure in this utility model.
[0021] In the diagram: 1. Support plate; 11. Tester body; 12. Circulation pump; 13. First support rod; 14. Fixing rod; 15. Container; 16. Water pump; 17. Support frame; 18. Valve; 19. Drain pipe; 110. Divider plate; 111. Liquid level detection rod; 2. Top plate; 21. Sliding rod; 22. First bolt; 23. Fixing seat; 24. Top block; 3. Second support rod; 31. Hanging rope; 32. Hook; 4. Marking line; 41. Second bolt; 5. Protective plate; 51. Leakage trough; 6. Rubber pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] Specific implementation examples are given below.
[0024] like Figures 1 to 5As shown in the embodiment of this utility model, a benchtop corrosion tester capable of automatic liquid replenishment includes a support plate 1; a tester body 11 is disposed at the top of the support plate 1; a partition plate 110 is fixedly connected to the middle of the tester body 11; a pair of circulating pumps 12 are fixedly connected to the side wall of the tester body 11; a pair of first support rods 13 are fixedly connected to the top of the support plate 1; a fixing rod 14 is disposed on the side wall of the first support rod 13; a liquid level detection rod 111 is fixedly connected to the bottom end of the fixing rod 14; a container 15 is disposed at the top of the support plate 1; a water pump 16 is fixedly connected to the top of the container 15; and a support frame is fixedly connected to the top of the support plate 1. 17; The support frame 17 is disposed between the container 15 and the tester body 11; the water pump 16 is connected to the support frame 17; a pair of valves 18 are fixedly connected to the top of the support frame 17; a pair of drain pipes 19 are fixedly connected to the side wall of the support frame 17; the drain pipes 19 are connected to the inside of the tester body 11; during operation, the partition plate 110 can divide the inside of the support plate 1 into two groups, and the two groups of workpieces to be tested are placed inside the tester body 11. Then, liquid is injected into the inside of the tester body 11 respectively, and then a pair of circulation pumps 12 are started to drive the liquid inside the tester body 11 to circulate. The liquid and the workpieces inside the tester body 11 are held together. Continued contact and subsequent observation of the corrosion status of the two sets of workpieces inside the test chamber 11. Prolonged circulation of the liquid driven by the circulating pump 12 will cause liquid evaporation, resulting in a decrease in the liquid level in the two test pools inside the test chamber 11. At this time, the two sets of liquid level detection rods 111 can detect the liquid level inside the test chamber 11. When the liquid level inside the test chamber 11 drops to a certain height, the water pump 16 can be activated to extract the liquid from the container 15 and allow it to flow out through the drain pipe 19, replenishing the inside of the test chamber 11. A pair of valves 18 can control whether the liquid flows out of the internal drain pipe 19, ensuring the liquid level inside the test chamber 11 remains constant. The liquid can be managed in zones; the partition plate 110 divides the inside of the support plate 1 into two test areas, allowing two sets of workpieces to be placed simultaneously for corrosion testing, reducing the impact of batch testing on experimental results due to changes in ambient temperature, and ensuring the comparability of the two sets of data. When the liquid level detection rod 111 detects that the liquid has decreased due to evaporation, the water pump 16 automatically draws liquid from the container 15 and replenishes it to the inside of the tester body 11 through the drain pipe 19, which can reduce the exposure of workpieces to air due to insufficient liquid and ensure the accuracy and continuity of experimental data. A pair of valves 18 can control the liquid replenishment of the two test areas respectively, increasing independent control during testing.
[0025] like Figures 1 to 3As shown, a top plate 2 is fixedly connected to the bottom end of the tester body 11; a slide rod 21 is slidably connected to the bottom end of the tester body 11; a first bolt 22 is threadedly connected to the top end of the slide rod 21; a fixing seat 23 is fixedly connected to the side wall of the slide rod 21; a top block 24 is fixedly connected to the side wall of the fixing seat 23; during operation, after the workpiece is placed inside the support plate 1, the workpiece will shake due to the circulation of liquid driven by the circulation pump 12. At this time, the test workpiece can be placed in the middle between the top plate 2 and the slide rod 21, and then the slide rod 21 is pushed to slide, and the top block 24 will contact the workpiece. Then, the first bolt 22 can be rotated to fix the slide rod 21, thus fixing the test workpiece inside the tester body 11; by using the cooperation of the top plate 2 and the fixing seat 23 to clamp the workpiece, the movement of the test workpiece caused by the impact force during the circulation of liquid inside the tester body 11 can be reduced, further increasing the stability during testing. The length of the slide rod 21 is extended to the top position of the tester body 11, which can reduce the contact between the workpiece and the liquid inside the support plate 1 when fixing it, thus increasing the safety of the test.
[0026] like Figures 2 to 3 As shown, a second support rod 3 is fixedly connected to the side wall of the slide rod 21; a hanging rope 31 is fixedly connected to the bottom end of the second support rod 3; a hook 32 is fixedly connected to the bottom end of the hanging rope 31; during operation, when testing different workpieces, the workpiece can also be placed in the middle of the hook 32, and the hook 32 can lift the workpiece and rotate with the first bolt 22 to stabilize the slide rod 21; the workpiece can be lifted and placed through the hook 32, which can adapt to workpieces of different shapes and sizes, and further increase the applicability of the workpiece when it is fixed inside the tester body 11.
[0027] like Figure 1 and Figure 4 As shown, a marking line 4 is fixedly connected to the side wall of the first support rod 13; a second bolt 41 is threadedly connected to the top of the first support rod 13; the second bolt 41 is rotatably connected to the fixed rod 14; the fixed rod 14 is slidably connected to the first support rod 13; during operation, before the liquid level detection rod 111 detects the liquid inside the tester body 11, the second bolt 41 is rotated, causing the fixed rod 14 to slide on the side wall of the first support rod 13. The sliding of the fixed rod 14 can adjust the overall height of the liquid level detection rod 111, thereby adjusting the detection liquid level inside the tester body 11; by rotating the second bolt 41 to drive the fixed rod 14 to slide, the overall height of the liquid level detection rod 111 can be adjusted. According to the liquid level requirements of different test scenarios, the detection liquid level value can be set, which, in conjunction with the marking line 4, increases the accuracy of the liquid level detection rod 111 setting.
[0028] like Figures 1 to 2As shown, a protective plate 5 is fixedly connected to the side wall of the tester body 11; a trough 51 is fixedly connected to the bottom end of the protective plate 5; during operation, when the circulating pump 12 drives the liquid inside the tester body 11 to circulate, the liquid will splash. At this time, the protective plate 5 can block the liquid splash. When the protective plate 5 blocks a large amount of liquid, it can be discharged from the trough 51; the protective plate 5 can block the splashing of liquid caused by the circulating pump 12 during the circulation process, reducing the damage caused by liquid splashing to the outside of the tester body 11.
[0029] like Figure 3 As shown, a pair of rubber pads 6 are fixed to the top of the tester body 11; a rubber pad 6 is fixed to the bottom of the first bolt 22; during operation, when the first bolt 22 fixes the slide rod 21, the rubber pad 6 at the bottom of the slide rod 21 will contact the rubber pad 6 at the top of the tester body 11; through the cooperation between the rubber pad 6 at the bottom of the first bolt 22 and the rubber pad 6 at the top of the tester body 11, the friction of the first bolt 22 when fixing the slide rod 21 can be increased, reducing the loosening of the first bolt 22 due to low friction, which would cause the slide rod 21 to slide, and further increasing the effect of the workpiece during testing.
[0030] Working Principle: The partition plate 110 divides the support plate 1 into two groups. Two groups of workpieces to be tested are placed inside the test chamber 11, and liquid is injected into each group. A pair of circulation pumps 12 are then activated to circulate the liquid inside the test chamber 11, ensuring continuous contact between the liquid and the workpieces. The corrosion of the two groups of workpieces inside the test chamber 11 is continuously observed. Prolonged circulation by the circulation pumps 12 causes liquid evaporation, resulting in a decrease in the liquid level in the two test chambers inside the test chamber 11. At this point, two liquid level detection rods 111 can detect the liquid level inside the test chamber 11. When the liquid level inside the test chamber 11 drops to a certain height, the water pump 16 is activated to extract the liquid from the container 15, which flows out through the drain pipe 19 to replenish the liquid inside the test chamber 11. A pair of valves 18 control whether the liquid flows out of the drain pipe 19, allowing for zoned management of the liquid inside the test chamber 11. After the workpiece is placed inside the support plate 1, the circulation pumps 12 cause the liquid to circulate, resulting in... When the workpiece wobbles, the test workpiece can be placed between the top plate 2 and the slide bar 21. Then, push the slide bar 21 to slide, and the top block 24 will contact the workpiece. Then, rotate the first bolt 22 to fix the slide bar 21, securing the test workpiece inside the tester body 11. When testing different workpieces, the workpiece can also be placed in the middle of the hook 32. The hook 32 can lift the workpiece, and its rotation, in conjunction with the first bolt 22, stabilizes the slide bar 21. Before the liquid level detection rod 111 detects the liquid inside the tester body 11, rotate the second bolt 41. The fixed rod 14 slides on the side wall of the first support rod 13. The sliding of the fixed rod 14 can adjust the overall height of the liquid level detection rod 111 and adjust the detection liquid level inside the tester body 11. When the circulating pump 12 drives the liquid inside the tester body 11 to circulate, the liquid will splash. At this time, the protective plate 5 can block the liquid splash. When the protective plate 5 blocks a lot of liquid, it can be discharged from the drain 51. When the first bolt 22 fixes the slide rod 21, the rubber pad 6 at the bottom of the slide rod 21 will contact the rubber pad 6 at the top of the tester body 11.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A benchtop corrosion tester capable of automatic liquid replenishment, characterized in that: Includes a support plate (1); a tester body (11) is provided at the top of the support plate (1); a partition plate (110) is fixedly connected to the middle of the tester body (11); a pair of circulating pumps (12) are fixedly connected to the side wall of the tester body (11); a pair of first support rods (13) are fixedly connected to the top of the support plate (1); a fixing rod (14) is provided on the side wall of the first support rod (13); a liquid level detection rod (111) is fixedly connected to the bottom end of the fixing rod (14); a liquid level detection rod (111) is provided at the top of the support plate (1). Container (15); a water pump (16) is fixedly connected to the top of the container (15); a support frame (17) is fixedly connected to the top of the support plate (1); the support frame (17) is arranged between the container (15) and the test body (11); the water pump (16) is connected to the support frame (17); a pair of valves (18) are fixedly connected to the top of the support frame (17); a pair of drain pipes (19) are fixedly connected to the side wall of the support frame (17); the drain pipes (19) are connected to the inside of the test body (11).
2. The benchtop corrosion tester capable of automatic liquid replenishment according to claim 1, characterized in that: The bottom end of the tester body (11) is fixedly connected to a top plate (2); the bottom end of the tester body (11) is slidably connected to a slide rod (21); the top end of the slide rod (21) is threadedly connected to a first bolt (22); a fixing seat (23) is fixedly connected to the side wall of the slide rod (21); a top block (24) is fixedly connected to the side wall of the fixing seat (23).
3. The benchtop corrosion tester capable of automatic liquid replenishment according to claim 2, characterized in that: A second support rod (3) is fixedly connected to the side wall of the slide rod (21); a hanging rope (31) is fixedly connected to the bottom end of the second support rod (3); and a hook (32) is fixedly connected to the bottom end of the hanging rope (31).
4. The benchtop corrosion tester capable of automatic liquid replenishment according to claim 3, characterized in that: The first support rod (13) has a marking line (4) fixed to its side wall; the first support rod (13) has a second bolt (41) threadedly connected to its top end; the second bolt (41) is rotatably connected to the fixing rod (14); the fixing rod (14) is slidably connected to the first support rod (13).
5. A benchtop corrosion tester capable of automatic liquid replenishment according to claim 4, characterized in that: The tester body (11) has a protective plate (5) fixedly attached to its side wall; the bottom of the protective plate (5) has a groove (51) fixedly attached to it.
6. The benchtop corrosion tester capable of automatic liquid replenishment according to claim 5, characterized in that: A pair of rubber pads (6) are fixed to the top of the tester body (11); a rubber pad (6) is fixed to the bottom of the first bolt (22).