A bolt nut salt spray detection device
By improving the sealing and cleaning structure of the bolt and nut salt spray detection device, the problems of difficult nut disassembly and inconvenient salt water cleaning of the sealing cover in traditional devices have been solved, achieving the effect of rapid disassembly and cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ETD DAKELUO COATING CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional bolt and nut salt spray testing devices cannot quickly disassemble the nuts after testing, and the salt water on the sealing cover surface cannot be effectively cleaned, affecting observation.
The design includes a testing box, a sealing cover, a cleaning mechanism, a spring, a positioning rod, and an electric push rod. The sealing performance is enhanced through the cooperation of the sealing groove and the sealing cover. The electric push rod drives the rubber strip to clean the salt water on the surface of the sealing cover. At the same time, the support rod and bolt fixing structure facilitate the quick fixing and disassembly of the bolts.
It enables quick disassembly of bolts and nuts and effective cleaning of the sealing cap surface with salt water, improving the practicality and ease of observation of the device.
Smart Images

Figure CN224553032U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of salt spray detection devices, and more particularly to a salt spray detection device for bolts and nuts. Background Technology
[0002] Salt spray testing equipment uses salt spray corrosion to test the salt spray corrosion resistance of materials and their protective layers, as well as to compare the process quality of similar protective layers. It can also assess the salt spray corrosion resistance of certain products.
[0003] Currently, traditional bolt and nut salt spray testing devices require placing the nuts one by one on a support rod using plastic strips, but the nuts cannot be quickly disassembled after the test is completed. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a bolt and nut salt spray detection device, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.
[0005] To achieve the above objectives, this application adopts the following technical solution: a bolt and nut salt spray testing device, comprising a testing box, a sealing cover hinged to the top of the testing box, a drain pipe fixedly connected to one side of the testing box, a cleaning mechanism provided on the surface of the sealing cover, a salt water evaporation device fixedly connected inside the testing box, a salt water receiving device provided on one side of the salt water evaporation device, a bolt placement mechanism provided on one side of the salt water receiving device, a nut placement mechanism provided on one side of the bolt placement mechanism, the nut placement mechanism comprising a movable plate, the movable plate being slidably connected to the testing box, a spring fixedly connected inside the testing box, a positioning rod fixedly connected to the top of the spring, the positioning rod being slidably connected to the movable plate, a fixing rod fixedly connected to the top of the movable plate, and a positioning frame slidably connected to the top of the fixing rod.
[0006] In a preferred embodiment, the surface of the testing box is provided with a sealing groove, which is adapted to the sealing cover.
[0007] By adopting the above technical solution, a sealing groove is opened on the surface of the test box, and the sealing groove is matched with the sealing cover. Then, clean water is poured into the inside of the sealing groove to enhance the sealing performance between the sealing cover and the test box, which can better enhance the sealing performance between the sealing cover and the test box.
[0008] In a preferred embodiment, the cleaning mechanism includes an electric push rod, which is fixedly connected to the detection box. A movable frame is fixedly connected to the telescopic end of the electric push rod, and a rubber strip is fixedly connected to the surface of the movable frame.
[0009] By adopting the above technical solution, the telescopic end of the electric push rod extends and retracts to drive the moving frame to move, and the moving frame then drives the rubber strip to move. The rubber strip then moves on the surface of the sealing cover to clean the salt water on the surface of the sealing cover, which can better clean the salt water on the surface of the sealing cover.
[0010] In a preferred embodiment, the bolt placement mechanism includes a support rod that is slidably connected to the testing box. The support rod has a bolt threaded onto its surface, and the testing box has mounting holes that are adapted to the bolts.
[0011] By adopting the above technical solution, the gap between the two adjacent support rods is adjusted by moving them, and the bolt to be tested is fixed between the two support rods. Then, by rotating the bolt, the bolt passes through the mounting hole and enters the interior of the support rod to fix the support rod, which can better fix the bolt to be tested.
[0012] In a preferred embodiment, the bottom of the testing box is fixedly connected to four support legs, which are symmetrically distributed on the bottom of the testing box, and the bottom of the support legs is provided with anti-slip texture.
[0013] By adopting the above technical solution, four support legs are fixedly connected to the bottom of the testing box, and the testing box is supported by the support legs, which can better support the testing box.
[0014] In a preferred embodiment, a controller is fixedly connected to the surface of the detection box, and the controller is electrically connected to the brine evaporation device.
[0015] By adopting the above technical solution, a controller is fixedly connected to the surface of the detection box, and the controller controls the switch of the brine evaporation device, which can better control the switch of the brine evaporation device.
[0016] The beneficial effects of this application are: 1. This bolt and nut salt spray testing device, by setting up a spring, a positioning rod, a moving plate, a fixed rod, and a positioning frame, moves the moving plate inside the testing chamber by moving the moving plate, and the spring supports the positioning rod. The positioning rod is then inserted into the testing chamber to position the moving plate. A suitable positioning frame is then selected and inserted into the fixed rod. Finally, the bolt to be tested is placed into the positioning frame to position the bolt. This avoids the problem of traditional bolt and nut salt spray testing devices, which require nuts to be suspended one by one on the support rod using plastic strips, and the inability to quickly disassemble the nuts after testing, thus improving practicality.
[0017] 2. This bolt and nut salt spray detection device, by setting up an electric push rod, a rubber strip, and a movable frame, uses the extension and retraction of the electric push rod to move the movable frame, which in turn moves the rubber strip, which then moves across the surface of the sealing cover to clean the salt water on the surface of the sealing cover. This avoids the problem of traditional bolt and nut salt spray detection devices being unable to clean the salt water on the surface of the sealing cover during use, thus affecting the observation of the operator and improving practicality. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the front structure of this application; Figure 2 This is a schematic diagram of the unfolded structure of this application; Figure 3 This is a schematic diagram of the cleaning mechanism structure of this application; Figure 4 This is a schematic diagram of the nut placement mechanism of this application.
[0019] The diagram is labeled as follows: 1. Testing box; 2. Cleaning mechanism; 21. Electric push rod; 22. Rubber strip; 23. Moving frame; 3. Bolt placement mechanism; 31. Support rod; 32. Bolt; 33. Mounting hole; 4. Nut placement mechanism; 41. Spring; 42. Positioning rod; 43. Moving plate; 44. Fixed rod; 45. Positioning frame; 5. Sealing cover; 6. Drain pipe; 7. Support leg; 8. Controller; 9. Sealing groove; 10. Brine receiving device; 11. Brine evaporation device. Detailed Implementation
[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0021] Reference Figures 1-2 A bolt and nut salt spray testing device includes a testing box 1. The top of the testing box 1 is hinged to a sealing cover 5. A sealing groove 9 is formed on the surface of the testing box 1, and the sealing groove 9 is adapted to the sealing cover 5. By forming a sealing groove 9 on the surface of the testing box 1, adapting the sealing groove 9 to the sealing cover 5, and pouring clean water into the sealing groove 9, the sealing performance between the sealing cover 5 and the testing box 1 can be enhanced, thus improving the sealing performance between the sealing cover 5 and the testing box 1.
[0022] Reference Figures 1-3A drain pipe 6 is fixedly connected to one side of the test box 1. A cleaning mechanism 2 is provided on the surface of the sealing cover 5. A brine evaporation device 11 is fixedly connected inside the test box 1. The cleaning mechanism 2 includes an electric push rod 21, which is fixedly connected to the test box 1. A movable frame 23 is fixedly connected to the telescopic end of the electric push rod 21. A rubber strip 22 is fixedly connected to the surface of the movable frame 23. The telescopic end of the electric push rod 21 extends and retracts, causing the movable frame 23 to move. The movable frame 23 then moves, causing the rubber strip 22 to move. The rubber strip 22 then moves on the surface of the sealing cover 5 to clean the brine on the surface of the sealing cover 5, thus cleaning the brine on the surface of the sealing cover 5 more effectively.
[0023] Reference Figures 2-4 A brine receiving device 10 is provided on one side of the brine evaporation device 11, a bolt placement mechanism 3 is provided on one side of the brine receiving device 10, and a nut placement mechanism 4 is provided on one side of the bolt placement mechanism 3. The nut placement mechanism 4 includes a moving plate 43, which is slidably connected to the detection box 1. A spring 41 is fixedly connected inside the detection box 1, and a positioning rod 42 is fixedly connected to the top of the spring 41. The positioning rod 42 is slidably connected to the moving plate 43, and a fixing rod 44 is fixedly connected to the top of the moving plate 43. A positioning frame 45 is slidably connected to the top of the fixing rod 44.
[0024] Reference Figure 4 The bolt placement mechanism 3 includes a support rod 31, which is slidably connected to the detection box 1. A bolt 32 is threaded onto the surface of the support rod 31. The surface of the detection box 1 has a mounting hole 33 that is adapted to the bolt 32. By moving two adjacent support rods 31, the gap between the two support rods 31 is adjusted, and the bolt to be tested is fixed between the two support rods 31. Then, by rotating the bolt 32, the bolt 32 passes through the mounting hole 33 and enters the interior of the support rod 31 to fix the support rod 31. This can better fix the bolt to be tested.
[0025] Reference Figures 1-2 The bottom of the testing box 1 is fixedly connected to four support legs 7, which are symmetrically distributed on the bottom of the testing box 1. The bottom of the support legs 7 is provided with anti-slip texture. By fixing the bottom of the testing box 1 to four support legs 7, the testing box 1 can be better supported.
[0026] Reference Figures 1-2 A controller 8 is fixedly connected to the surface of the test box 1, and the controller 8 is electrically connected to the brine evaporation device 11. By fixing the controller 8 to the surface of the test box 1, the controller 8 can control the switch of the brine evaporation device 11, which can better control the switch of the brine evaporation device 11.
[0027] Working principle: Open the sealing cover 5, adjust the gap between the two adjacent support rods 31 by moving them, and fix the bolt to be tested between the two support rods 31. Then, rotate the bolt 32 to pass through the mounting hole 33 and enter the interior of the support rod 31 to fix the support rod 31. Then, move the moving plate 43 to move it inside the detection box 1. The spring 41 supports the positioning rod 42, and the positioning rod 42 is inserted into the interior of the detection box 1 to position the moving plate 43. Then, select a suitable positioning frame 45 and insert it into the interior of the fixing rod 44. Finally, place the bolt to be tested into the positioning frame 45 to complete the test. The bolts are positioned, and then the sealing cover 5 is closed. A sealing groove 9 is opened on the surface of the test box 1, and the sealing groove 9 is adapted to the sealing cover 5. Clean water is poured into the sealing groove 9 to enhance the sealing between the sealing cover 5 and the test box 1. The brine is then evaporated by the brine evaporation device. The brine is evaporated onto the sealing cover 5 and then falls from the sealing cover 5 onto the bolts and nuts to achieve corrosion. The telescopic end of the electric push rod 21 extends and retracts to move the moving frame 23. The moving frame 23 moves and moves the rubber strip 22. The rubber strip 22 moves on the surface of the sealing cover 5 to clean the brine on the surface of the sealing cover 5, making it convenient for staff to observe the inside of the test box 1 through the sealing cover 5.
[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0030] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. A bolt and nut salt spray testing device, comprising a testing chamber (1), characterized in that, The top of the test box (1) is hinged to a sealing cover (5). A drain pipe (6) is fixedly connected to one side of the test box (1). A cleaning mechanism (2) is provided on the surface of the sealing cover (5). A brine evaporation device (11) is fixedly connected inside the test box (1). A brine receiving device (10) is provided on one side of the brine evaporation device (11). A bolt placement mechanism (3) is provided on one side of the brine receiving device (10). A nut placement mechanism (4) is provided on one side of the bolt placement mechanism (3). The nut placement mechanism (4) includes a moving plate (43). The moving plate (43) is slidably connected to the test box (1). A spring (41) is fixedly connected inside the test box (1). A positioning rod (42) is fixedly connected to the top of the spring (41). The positioning rod (42) is slidably connected to the moving plate (43). A fixing rod (44) is fixedly connected to the top of the moving plate (43). A positioning frame (45) is slidably connected to the top of the fixing rod (44).
2. The bolt and nut salt spray testing device according to claim 1, characterized in that, The surface of the test box (1) is provided with a sealing groove (9), which is adapted to the sealing cover (5).
3. The bolt and nut salt spray testing device according to claim 1, characterized in that, The cleaning mechanism (2) includes an electric push rod (21), which is fixedly connected to the detection box (1). The telescopic end of the electric push rod (21) is fixedly connected to a movable frame (23), and a rubber strip (22) is fixedly connected to the surface of the movable frame (23).
4. The bolt and nut salt spray testing device according to claim 1, characterized in that, The bolt placement mechanism (3) includes a support rod (31), which is slidably connected to the detection box (1). The surface of the support rod (31) is threaded with a bolt (32). The surface of the detection box (1) is provided with an installation hole (33), which is adapted to the bolt (32).
5. A bolt and nut salt spray testing device according to claim 1, characterized in that, The bottom of the testing box (1) is fixedly connected to four support legs (7), which are symmetrically distributed on the bottom of the testing box (1). The bottom of the support legs (7) is provided with anti-slip texture.
6. A bolt and nut salt spray testing device according to claim 1, characterized in that, A controller (8) is fixedly connected to the surface of the detection box (1), and the controller (8) is electrically connected to the brine evaporation device (11).