A salt spray test chamber

Abstract

This utility model relates to the technical field of salt spray test chambers, specifically a salt spray test chamber comprising a salt spray chamber body and a salt spray chamber lid, and a salt spray inner liner. The salt spray inner liner is fixedly mounted on the salt spray chamber body, and the salt spray chamber lid is rotatably mounted on the salt spray inner liner and covers the top of the salt spray inner liner. A support assembly for supporting the workpiece is fixedly mounted inside the salt spray inner liner, and a heating assembly is fixedly mounted inside the salt spray chamber body, with the heating assembly in contact with the salt spray inner liner. This utility model's salt spray test chamber is easy to assemble and disassemble. When conducting corrosion resistance tests on workpieces, the salt spray chamber lid and the salt spray inner liner fit tightly together, preventing water vapor and salt spray from leaking between the lid and the inner liner.

Description

Technical Field

[0001] This utility model relates to the technical field of salt spray test chambers, and specifically to a salt spray test chamber. Background Technology

[0002] A salt spray test chamber is a device used to simulate a salt spray environment and test the corrosion resistance of products (metallic materials, coatings, electronic products, etc.). Existing salt spray test chambers suffer from poor sealing, allowing salt spray to easily leak between the chamber body and lid. Furthermore, their overall structure is cumbersome and difficult to disassemble. Therefore, there is an urgent need for a salt spray test chamber to solve these problems. Utility Model Content

[0003] To address the technical problems of existing salt spray test chambers, such as poor sealing, easy leakage of salt spray from between the chamber body and the lid, and cumbersome overall structure that is difficult to disassemble, this utility model provides a salt spray test chamber that is easy to disassemble and assemble. When conducting corrosion resistance tests on workpieces, the salt spray chamber lid and the salt spray inner liner fit tightly together, preventing water vapor and salt spray from leaking between the two.

[0004] This utility model provides a salt spray test chamber, including a salt spray chamber body and a salt spray chamber cover, and a salt spray inner liner. The salt spray inner liner is fixedly mounted on the salt spray chamber body, and the salt spray chamber cover is rotatably mounted on the salt spray inner liner and covers the top of the salt spray inner liner. A support assembly for supporting the workpiece is fixedly mounted inside the salt spray inner liner, and a heating assembly is fixedly mounted inside the salt spray chamber body, with the heating assembly in contact with the salt spray inner liner.

[0005] Furthermore, the salt spray chamber is a square barrel, and the salt spray chamber includes a main frame, a base plate fixedly mounted on the main frame, and multiple side plates. A fixed area is formed between the main frame, the base plate, and the multiple side plates. Rollers located outside the salt spray chamber are rotatably mounted on the base plate.

[0006] Furthermore, the heating assembly includes multiple heating wires, which are uniformly fixed on the base plate and in contact with the bottom of the salt spray liner.

[0007] Furthermore, the salt spray liner is a square bucket. The salt spray liner is placed within a fixed area, and a fixed platform extends outward from the top of the salt spray liner. The fixed platform rests on the main frame and has fixed grooves. The tops of multiple side panels are engaged in these fixed grooves. The main frame supports the fixed platform, and the fixed grooves and multiple side panels engage to secure the salt spray liner to the salt spray chamber, placing the salt spray liner within the fixed area.

[0008] Furthermore, an inlet pipe and a drain pipe are fixedly installed on the salt spray liner, and valves are installed on both the inlet pipe and the drain pipe. The inlet pipe passes through the side plate of the salt spray chamber and is fixedly connected to the external water tank. The drain pipe passes through the bottom plate of the salt spray chamber and is fixedly connected to the inlet of the water pump. The outlet of the water pump is fixedly connected to the external water tank.

[0009] Furthermore, the support assembly includes two support plates symmetrically arranged inside the salt spray liner. A grid plate is fixedly installed on the inner bottom wall of the salt spray liner, located below the two support plates. Each support plate has multiple support grooves evenly distributed. The workpiece is placed on the support grooves of the two support plates. Both ends of the workpiece are placed on the support grooves of the two support plates respectively. The two support plates can support multiple workpieces, thereby allowing multiple workpieces to be tested for corrosion resistance at the same time.

[0010] Furthermore, a first support is fixedly mounted on the salt spray chamber lid, and a second support is fixedly mounted on the fixed platform. The first support is rotatably connected to the second support via a pin. An embedded groove is provided on the fixed platform inside the fixed groove, and the salt spray chamber lid is located in the embedded groove. The first support and the second support are rotatably connected, allowing the salt spray chamber lid to rotate relative to the salt spray liner.

[0011] Furthermore, a sealing protrusion is fixedly provided on the salt spray chamber lid, and a sealing groove is provided on the fixing platform at a position corresponding to the sealing protrusion. The sealing groove is located inside the embedded groove, and the sealing protrusion is engaged in the sealing groove. A sealing ring is fixedly provided in the sealing groove, and the sealing protrusion contacts the sealing ring. The sealing protrusion is engaged in the sealing groove, and the sealing ring is provided to ensure that water vapor salt spray does not leak from between the salt spray chamber lid and the salt spray inner liner.

[0012] Furthermore, a cylinder is rotatably mounted on the main frame. The cylinder is tilted and located to the side of the salt spray chamber. A notch is provided on the fixed platform corresponding to the cylinder. The telescopic rod of the cylinder passes through the notch and is rotatably connected to the salt spray chamber cover. When the cylinder is activated, the telescopic rod extends upward, hinges to the salt spray chamber cover, and the cover rotates relative to the salt spray chamber, opening the cover. Conversely, the telescopic rod retracts downward, closing the cover.

[0013] Furthermore, a fixing plate is fixedly mounted on the salt spray chamber lid, a fixing sleeve is fixedly mounted on the fixing plate, a bolt is rotatably mounted on the fixing sleeve, a limit piece is fixedly mounted on the bolt, and a limit handle is fixedly mounted on the fixing platform. The limit piece is located below the limit handle. When a person rotates the bolt so that the limit piece is directly below the limit handle, and then rotates the salt spray chamber lid to open it, the lid cannot be opened because the limit handle obstructs the limit piece. Conversely, when the limit piece is moved to the side and below the limit handle, the limit handle no longer obstructs the limit piece, and the salt spray chamber lid can be rotated and opened.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model discloses a salt spray test chamber that is easy to assemble and disassemble. The salt spray chamber body is assembled from a main frame, a base plate, and multiple side plates. The salt spray chamber body is easy to disassemble. In use, the salt spray inner liner is installed on the salt spray chamber body, and the salt spray chamber lid is installed on the salt spray inner liner, which is simple and convenient. When the salt spray test chamber is used to test the corrosion resistance of workpieces, the salt spray chamber lid and the salt spray inner liner fit tightly together, that is, the sealing protrusion is engaged with the sealing groove, and a sealing ring is provided to ensure that water vapor and salt spray do not leak from between the salt spray chamber lid and the salt spray inner liner. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a salt spray test chamber according to the present invention;

[0017] Figure 2 This is a utility model Figure 1 Enlarged structural diagram of A in the middle;

[0018] Figure 3 This is a utility model Figure 1 Enlarged structural diagram of B in the middle;

[0019] Figure 4 This is a side view of the salt spray test chamber of this utility model.

[0020] Figure 5 This is a structural schematic diagram of the salt spray chamber cover of this utility model;

[0021] Figure 6 This is a top view structural diagram of the salt spray inner liner of this utility model;

[0022] Figure 7 This is a bottom view structural diagram of the salt spray inner liner of this utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the salt spray chamber of this utility model;

[0024] The numbers in the attached diagram are:

[0025] 1. Salt spray chamber body; 11. Main frame; 12. Base plate; 13. Side plate; 14. Roller; 2. Salt spray chamber cover; 21. First support; 22. Sealing protrusion; 23. Fixing plate; 24. Fixing sleeve; 25. Bolt; 251. Limiting plate; 3. Salt spray inner liner; 31. Fixing platform; 311. Fixing groove; 312. Embedded groove; 313. Sealing groove; 314. Notch; 32. Water inlet pipe; 33. Drainage pipe; 34. Grid plate; 35. Second support; 36. Limiting handle; 4. Heating wire; 5. Support plate; 51. Support groove; 6. Cylinder; 7. Sealing ring; 8. Water tank; 9. Water pump. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1-8 As shown, a salt spray test chamber includes a salt spray chamber body 1 and a salt spray chamber cover 2, as well as a salt spray inner liner 3. The salt spray inner liner 3 is fixedly mounted on the salt spray chamber body 1, and the salt spray chamber cover 2 is rotatably mounted on the salt spray inner liner 3 and covers the top of the salt spray inner liner 3. A support assembly for supporting the workpiece is fixedly installed inside the salt spray inner liner 3, and a heating assembly is fixedly installed inside the salt spray chamber body 1, with the heating assembly in contact with the salt spray inner liner 3. In use, the salt spray inner liner 3 is installed on the salt spray chamber body 1, and the salt spray chamber cover 2 is installed on the salt spray inner liner 3, which is simple and convenient.

[0028] The salt spray test chamber is used to test the corrosion resistance of workpieces: The salt spray chamber lid 2 is rotated to open, and the workpiece (metal material, etc.) is placed on the support assembly. The lid 2 is then rotated to close, ensuring a tight seal between the lid and the inner salt spray chamber 3. Salt water from the external water tank 8 is pre-filled into the inner salt spray chamber 3, with the salt water level not exceeding the height of the support assembly and the workpiece. The heating assembly is activated, transferring heat to the inner salt spray chamber 3. The salt water in the chamber absorbs the heat and vaporizes, forming a water vapor salt mist. This mist rises and adheres to the workpiece, preventing leakage between the lid 2 and the inner chamber 3. After a certain period of time, the workpiece is removed from the inner chamber 3, and its corrosion resistance is then assessed.

[0029] The salt spray test chamber of this embodiment is easy to disassemble and assemble. When the workpiece is subjected to corrosion resistance test, the salt spray chamber cover 2 and the salt spray inner liner 3 are tightly fitted together, and water vapor and salt spray will not leak from between the salt spray chamber cover 2 and the salt spray inner liner 3.

[0030] In one possible implementation, the salt spray chamber 1 is a square barrel, comprising a main frame 11, a base plate 12 fixedly mounted on the main frame 11, and multiple side plates 13. The base plate 12 is fixedly mounted on the bottom of the main frame 11, and the multiple side plates 13 are evenly distributed around the four sides of the main frame 11. A fixed area is formed between the main frame 11, the base plate 12, and the multiple side plates 13. Rollers 14 are rotatably mounted on the base plate 12 and located outside the salt spray chamber 1. In this embodiment, the salt spray chamber 1 is assembled from the main frame 11, the base plate 12, and the multiple side plates 13. The salt spray chamber 1 is easy to disassemble and convenient for subsequent maintenance. The rollers 14 are fuma wheels, facilitating fixing and movement. The rotation method of the rollers 14 is existing technology and will not be described in detail here. The main frame 11 is made of aluminum alloy profile, which has the advantages of being lightweight and highly corrosion-resistant. The base plate 12 and the multiple side plates 13 are made of vinyl ester resin material, which has the advantages of high corrosion resistance and strong anti-aging ability.

[0031] In one possible implementation, the heating assembly includes multiple heating wires 4, which are uniformly fixed on the base plate 12 and in contact with the bottom of the salt spray chamber 3. In this embodiment, a PLC control cabinet is also installed outside the salt spray test chamber to control the on / off state of the heating wires 4. A third through-hole is provided on the base plate 12, through which the wire bundle of the heating wires 4 can be electrically connected to the PLC control cabinet, which then supplies power to the heating wires 4. Saltwater from the external water tank 8 enters the salt spray chamber 3. When the heating wires 4 are energized, they generate heat, which is transferred to the bottom of the salt spray chamber 3 and the saltwater. The saltwater absorbs the heat and vaporizes to form a water mist salt spray.

[0032] In one possible implementation, the salt spray liner 3 is a square bucket. The salt spray liner 3 is placed within a fixed area. A fixing platform 31 extends outward from the top of the salt spray liner 3 and rests on the main frame 11. A fixing groove 311 is provided at the edge of the fixing platform 31, and the tops of the multiple side plates 13 are engaged in the fixing groove 311. In this embodiment, the main frame 11 supports the fixing platform 31, and the fixing groove 311 and the multiple side plates 13 engage and cooperate, ultimately fixing the salt spray liner 3 onto the salt spray chamber 1, with the salt spray liner 3 located within the fixed area.

[0033] In one possible implementation, an inlet pipe 32 and a drain pipe 33 are fixedly installed on the salt spray chamber 3. Both the inlet pipe 32 and the drain pipe 33 are equipped with valves, and a PLC control cabinet is used to control the opening and closing of the valves. The inlet pipe 32 passes through the side plate 13 of the salt spray chamber 1 and is fixedly connected to the external water tank 8. The drain pipe 33 passes through the bottom plate 12 of the salt spray chamber 1 and is fixedly connected to the inlet of the water pump 9. The outlet of the water pump 9 is fixedly connected to the external water tank 8. Specifically, the salt spray chamber 3 has an inlet and a drain, with the inlet located above the drain. The inlet is fixedly connected to the inlet pipe 32, and the drain is fixedly connected to the drain pipe 33. Preferably, the external water tank 8 is located outside the salt spray test chamber. A first through hole is provided on the side plate 13, through which the inlet pipe 32 passes and is fixedly connected to the external water tank 8. A second through hole is provided on the bottom plate 12, through which the end of the drain pipe 33 passes and is fixedly connected to the valve. The salt spray liner 3 has a slope between its four corners and the water inlet, and the four corners of the salt spray liner 3 are higher than the water inlet to facilitate drainage.

[0034] Open the valve on the inlet pipe 32 and close the valve on the drain pipe 33. Salt water from the external water tank 8 enters the salt spray liner 3 through the inlet pipe 32. After a certain amount of salt water is introduced, close the valve on the inlet pipe 32. The heating wire 4 generates heat when energized. This heat is transferred to the bottom of the salt spray liner 3 and the salt water, which absorbs the heat and vaporizes to form a water mist. After the corrosion resistance test is completed, open the valve on the drain pipe 33, and the pump starts, drawing the remaining salt water in the salt spray liner 3 back into the water tank 8 through the drain pipe 33. The salt water can be reused.

[0035] In one possible implementation, the support assembly includes two support plates 5 symmetrically arranged inside the salt spray liner 3. A grid plate 34 is fixedly installed on the inner bottom wall of the salt spray liner 3, located below the two support plates 5. Each support plate 5 has a plurality of support grooves 51 evenly arranged on it. The workpiece is placed on the support grooves 51 of the two support plates 5. Both ends of the workpiece are placed on the support grooves 51 of the two support plates 5 respectively. The two support plates 5 can support multiple workpieces, thereby allowing multiple workpieces to be tested for corrosion resistance at the same time. The height of the brine in the salt spray liner 3 does not exceed the height of the grid plate 34. The brine absorbs heat and vaporizes to form water vapor salt spray. The water vapor salt spray passes through the grid plate 34, which causes the water vapor salt spray to disperse evenly upwards, thereby allowing the water vapor salt spray to adhere evenly to the workpiece.

[0036] In one possible implementation, a first support 21 is fixedly mounted on the salt spray chamber cover 2, and a second support 35 is fixedly mounted on the fixed platform 31. The first support 21 is rotatably connected to the second support 35 via a pin. The fixed platform 31 has an embedded groove 312 located inside the fixed groove 311, and the salt spray chamber cover 2 is located in the embedded groove 312, tightly fitting within it. The first support 21 and the second support 35 are rotatably connected, allowing the salt spray chamber cover 2 to rotate relative to the salt spray liner 3. Preferably, the salt spray chamber cover 2 is provided with a handle and a transparent window. The handle is located on the side away from the hinge point between the salt spray chamber cover 2 and the fixed platform 31, facilitating rotation of the salt spray chamber cover 2; the transparent window allows for observation of the workpiece's condition.

[0037] In one possible implementation, a sealing protrusion 22 is fixedly provided on the salt spray chamber cover 2. A sealing groove 313 is provided on the fixing platform 31 at a position corresponding to the sealing protrusion 22. The sealing groove 313 is located inside the embedded groove 312. The sealing protrusion 22 is engaged in the sealing groove 313. A sealing ring 7 is fixedly provided in the sealing groove 313, and the sealing protrusion 22 contacts the sealing ring 7. The engagement of the sealing protrusion 22 with the sealing groove 313 and the provision of the sealing ring 7 ensure that water vapor salt spray does not leak from between the salt spray chamber cover 2 and the salt spray inner liner 3.

[0038] In one possible implementation, a cylinder 6 is rotatably mounted on the main frame 11. The cylinder 6 is tilted and located to the side of the salt spray chamber 3. A notch 314 is provided on the fixed platform 31 at a position corresponding to the cylinder 6. The telescopic rod of the cylinder 6 passes through the notch 314 and is rotatably connected to the salt spray chamber cover 2. The cylinder 6 can assist in opening or closing the salt spray chamber cover 2. When the cylinder 6 is activated, the telescopic rod of the cylinder 6 extends upward, and the cylinder 6 is hinged to the main frame 11 and the salt spray chamber cover 2, causing the salt spray chamber cover 2 to rotate and open. Conversely, the telescopic rod of the cylinder 6 retracts downward, and the salt spray chamber cover 2 closes.

[0039] Preferably, a protrusion is fixedly provided at the bottom of the cylinder 6, and a first connecting seat is fixedly provided on the main frame 11. The protrusion is rotatably connected to the first connecting seat via a pin. The pin passes through the protrusion and the first connecting seat, and the protrusion rotates relative to the first connecting seat.

[0040] Preferably, the telescopic rod of the cylinder 6 is fixedly connected to the Y-shaped connector, and a second connecting seat is fixedly provided on the salt spray chamber cover 2. The Y-shaped connector is rotatably connected to the second connecting seat via a pin. The pin passes through the Y-shaped connector and the second connecting seat, and the Y-shaped connector rotates relative to the second connecting seat.

[0041] In one possible implementation, a fixing plate 23 is fixedly mounted on the salt spray chamber cover 2, located at the end of the cover. A fixing sleeve 24 is fixedly mounted on the fixing plate 23, and a bolt 25 is rotatably mounted on the fixing sleeve 24, penetrating the sleeve. A limiting piece 251 is located below the fixing sleeve 24, and an arc-shaped limiting piece 251 is fixedly mounted on the bolt 25. A limiting handle 36 is fixedly mounted on the fixing platform 31, with the limiting piece 251 located below it and the handle 36 located at the end of the platform 31. When a person rotates the bolt 25, positioning the limiting piece 251 directly below the handle 36, and then rotates the salt spray chamber cover 2 to open it, the cover cannot be opened due to the obstruction of the limiting piece 251 by the handle 36. Conversely, if the limiting plate 251 is positioned next to the limiting handle 36, the limiting handle 36 will no longer block the limiting plate 251, and the salt spray chamber cover 2 can be rotated and opened.

[0042] Preferably, the fixing sleeve 24 has an internal thread, and the bolt 25 has an external thread opposite to the internal thread, and the bolt 25 and the fixing sleeve 24 are rotatably connected.

[0043] The embodiments described above are merely preferred embodiments of this utility model and are only used to explain this utility model. They are not intended to limit the scope of implementation of this utility model. For those skilled in the art, other implementation methods can be easily made by substitution or modification based on the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A salt spray test chamber, comprising a salt spray chamber body (1) and a salt spray chamber cover (2), characterized in that, It also includes a salt spray liner (3), which is fixedly mounted on the salt spray chamber (1). The salt spray chamber cover (2) is rotatably mounted on the salt spray liner (3) and covers the top of the salt spray liner (3). A support assembly for supporting the workpiece is fixedly mounted inside the salt spray liner (3). A heating assembly is fixedly mounted inside the salt spray chamber (1). The heating assembly is in contact with the salt spray liner (3).

2. The salt spray test chamber according to claim 1, characterized in that, The salt spray chamber (1) is a square barrel. The salt spray chamber (1) includes a main frame (11), a base plate (12) fixedly mounted on the main frame (11), and multiple side plates (13). A fixed area is formed between the main frame (11), the base plate (12), and the multiple side plates (13). A roller (14) located outside the salt spray chamber (1) is rotatably mounted on the base plate (12).

3. The salt spray test chamber according to claim 2, characterized in that, The heating assembly includes multiple heating wires (4), which are uniformly fixed on the base plate (12) and in contact with the bottom of the salt spray liner (3).

4. The salt spray test chamber according to claim 2, characterized in that, The salt spray liner (3) is a square bucket. The salt spray liner (3) is placed in a fixed area. A fixed platform (31) extends outward from the top of the salt spray liner (3). The fixed platform (31) is placed on the main frame (11). A fixed groove (311) is provided on the fixed platform (31). The tops of the multiple side plates (13) are all inserted into the fixed groove (311).

5. The salt spray test chamber according to claim 4, characterized in that, The salt spray inner liner (3) is fixedly provided with a water inlet pipe (32) and a drain pipe (33). Both the water inlet pipe (32) and the drain pipe (33) are equipped with valves. The water inlet pipe (32) passes through the side plate (13) of the salt spray chamber (1) and is fixedly connected to the external water tank (8). The drain pipe (33) passes through the bottom plate (12) of the salt spray chamber (1) and is fixedly connected to the inlet of the water pump (9). The outlet of the water pump (9) is fixedly connected to the external water tank (8).

6. The salt spray test chamber according to claim 4, characterized in that, The support assembly includes two support plates (5) symmetrically arranged inside the salt spray liner (3). A grid plate (34) is fixedly arranged on the inner bottom wall of the salt spray liner (3). The grid plate (34) is located below the two support plates (5). Each support plate (5) is evenly provided with multiple support grooves (51). The workpiece is placed on the support grooves (51) of the two support plates (5).

7. The salt spray test chamber according to claim 4, characterized in that, A first support (21) is fixedly installed on the salt spray chamber cover (2), and a second support (35) is fixedly installed on the fixed platform (31). The first support (21) is rotatably connected to the second support (35) by a pin. An embedded groove (312) is provided on the fixed platform (31) inside the fixed groove (311), and the salt spray chamber cover (2) is located in the embedded groove (312).

8. The salt spray test chamber according to claim 7, characterized in that, A sealing protrusion (22) is fixedly provided on the salt spray chamber cover (2). A sealing groove (313) is provided on the fixed platform (31) at a position corresponding to the sealing protrusion (22). The sealing groove (313) is located inside the embedded groove (312). The sealing protrusion (22) is inserted into the sealing groove (313). A sealing ring (7) is fixedly provided in the sealing groove (313). The sealing protrusion (22) is in contact with the sealing ring (7).

9. The salt spray test chamber according to claim 7, characterized in that, A cylinder (6) is rotatably mounted on the main frame (11). The cylinder (6) is inclined and located on the side of the salt spray liner (3). A notch (314) is provided on the fixed platform (31) at the position corresponding to the cylinder (6). The telescopic rod of the cylinder (6) passes through the notch (314) and is rotatably connected to the salt spray chamber cover (2).

10. The salt spray test chamber according to claim 7, characterized in that, A fixing plate (23) is fixedly installed on the salt spray chamber cover (2), a fixing sleeve (24) is fixedly installed on the fixing plate (23), a bolt (25) is rotatably installed on the fixing sleeve (24), a limiting piece (251) is fixedly installed on the bolt (25), a limiting handle (36) is fixedly installed on the fixing platform (31), and the limiting piece (251) is located below the limiting handle (36).

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