A salt spray testing machine with high sealing performance

Abstract

The utility model discloses a kind of salt fog testing machine of high sealing property, it is related to field, including testing machine box, connecting hinge, sealing cover and control box, the connecting hinge is fixedly installed in the rear end of testing machine box, the sealing cover is movably installed in the outside of connecting hinge, the control box is fixedly installed in one side of testing machine box, the top of sealing cover is fixedly installed with agitating mechanism.The utility model has realized the dynamic, even spraying of salt fog in test box space, cooperate agitating mechanism and continuously rotate in the middle of two salt fog nozzles, effectively scatter, agitate the salt fog of spraying, prevent salt fog local gathering or settling too fast, further ensure the high uniformity of salt fog concentration and distribution in entire test space, significantly improve the coverage uniformity and result reliability of salt fog test, make the corrosion environment that test sample each part suffers more consistent, test data more accurate, so that salt fog testing machine promotes salt fog distribution uniformity and test accuracy.

Description

Technical Field

[0001] This utility model relates to the field of salt spray testing, and in particular to a salt spray testing machine with high sealing performance. Background Technology

[0002] A sealed salt spray test chamber is a machine that uses a sealed environment to spray salt spray to conduct salt spray corrosion tests on workpieces. It is a key test method for evaluating the corrosion resistance of materials, coatings or products and is widely used in industrial quality control, research and development and failure analysis.

[0003] However, when using sealed salt spray test chambers, most equipment relies on nozzles with fixed positions or limited swing angles. This static or limited dynamic spraying method makes it difficult to ensure that the salt spray achieves an ideal and uniform distribution throughout the entire three-dimensional space inside the test chamber. This easily leads to significant differences in the amount of salt spray settling, concentration, and coverage uniformity at different locations in the test area. At the same time, the sprayed salt spray aerosol droplets tend to settle and aggregate naturally. Traditional equipment lacks effective dynamic dispersion methods, which can easily lead to excessive accumulation of salt spray in local areas, while in other areas, the salt spray settles too quickly and the concentration is insufficient. This non-uniformity makes the actual corrosion environment experienced by different parts of the test sample seriously inconsistent, which seriously affects the reliability and comparability of test results from different laboratories or different batches, making it difficult to meet the requirements of high-precision testing. Utility Model Content

[0004] The main objective of this invention is to provide a salt spray test chamber with high sealing performance, which can effectively solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-sealing salt spray test chamber includes a test chamber housing, a connecting hinge, a sealing cover, and a control box. The connecting hinge is fixedly installed at the rear end of the test chamber housing. The sealing cover is movably installed on the outside of the connecting hinge. The control box is fixedly installed on one side of the test chamber housing. A stirring mechanism is fixedly installed on the top of the sealing cover. Two reciprocating lead screws are movably installed inside the test chamber housing. A connecting rod is fixedly installed between the two reciprocating lead screws. A reciprocating collar is sleeved on the outside of the reciprocating lead screws. A salt spray nozzle is fixedly installed behind the reciprocating collar. A salt spray nozzle is fixedly installed at the upper end of the salt spray nozzle. A rotary motor is fixedly installed inside the control box.

[0007] As a further embodiment of this utility model, a switching cylinder is fixedly installed on one side of the test chamber, the upper end of the piston rod of the switching cylinder is movably connected to one side of the sealing cover, the sealing cover is placed on the upper end of the test chamber, and a control panel is fixedly installed on the upper end of the control box.

[0008] As a further embodiment of this utility model, the agitation mechanism includes an agitation motor, an agitation rod, a blade mounting plate, and agitation blades. The agitation motor is fixedly installed on the upper end of the sealing cover, the agitation rod is fixedly installed on the lower end of the rotating shaft of the agitation motor, the blade mounting plate is fixedly installed on the lower end of the agitation rod, and multiple agitation blades are fixedly installed on the lower end of the blade mounting plate.

[0009] As a further embodiment of this utility model, the blade mounting plate and the agitating blade are located below the sealing cover, and the agitating blade is located between the two salt spray nozzles.

[0010] As a further embodiment of this utility model, the rotating shaft of the rotary motor is fixedly connected to one end of the reciprocating lead screw, and the reciprocating collar slides back and forth around the reciprocating lead screw.

[0011] As a further embodiment of this utility model, a guide ring is fixedly installed on the outer side of the salt spray nozzle above the reciprocating collar, and a guide rod is movably installed in front of the guide ring, with both ends of the guide rod fixedly connected to the inner wall of the test chamber.

[0012] Compared with the prior art, this utility model has the following beneficial effects: By driving a reciprocating lead screw with a rotary motor, the reciprocating collar, salt spray nozzle, and salt spray tube move stably back and forth along the guide rod, realizing dynamic and uniform spraying of salt spray in the test chamber. In conjunction with the stirring mechanism located between the two salt spray nozzles and rotating continuously, the sprayed salt spray is effectively dispersed and stirred, preventing local accumulation or excessively rapid settling of salt spray. This further ensures the high uniformity of salt spray concentration and distribution throughout the entire test space, significantly improving the coverage uniformity and reliability of the salt spray test results. It makes the corrosive environment experienced by each part of the test sample more consistent, and the test data more accurate, thus improving the uniformity of salt spray distribution and the accuracy of the test in the salt spray testing machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a high-sealing salt spray test chamber according to the present invention;

[0014] Figure 2 This is a cross-sectional view of the sealing cover of a high-sealing salt spray tester according to the present invention;

[0015] Figure 3 This is an enlarged view of the stirring mechanism in a high-sealing salt spray tester according to the present invention;

[0016] Figure 4 This is an enlarged view of the reciprocating lead screw in a high-sealing salt spray tester according to this utility model.

[0017] In the diagram: 1. Test chamber; 2. Connecting hinge; 3. Sealing cover; 4. Switch cylinder; 5. Control box; 6. Control panel; 7. Stirring mechanism; 8. Stirring motor; 9. Stirring rod; 10. Blade mounting plate; 11. Stirring blade; 12. Rotary motor; 13. Reciprocating screw; 14. Connecting rod; 15. Reciprocating collar; 16. Salt spray nozzle; 17. Salt spray nozzle; 18. Guide ring; 19. Guide rod. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-4 As shown, a high-sealing salt spray test chamber is provided; please refer to it carefully. Figures 1-4 The test chamber includes a test chamber 1, a connecting hinge 2, a sealing cover 3, and a control box 5. The connecting hinge 2 is fixedly installed at the rear end of the test chamber 1. The sealing cover 3 is movably installed on the outside of the connecting hinge 2. The control box 5 is fixedly installed on one side of the test chamber 1. A stirring mechanism 7 is fixedly installed on the top of the sealing cover 3. Two reciprocating screws 13 are movably installed on the inside of the test chamber 1. A connecting rod 14 is fixedly installed between the two reciprocating screws 13. A reciprocating collar 15 is sleeved on the outside of the reciprocating screws 13. A salt spray nozzle 16 is fixedly installed behind the reciprocating collar 15. A salt spray nozzle 17 is fixedly installed at the upper end of the salt spray nozzle 16. A rotary motor 12 is fixedly installed inside the control box 5.

[0020] Please refer to this carefully. Figure 1 and Figure 2 A switch cylinder 4 is fixedly installed on one side of the test chamber 1. The upper end of the piston rod of the switch cylinder 4 is movably connected to one side of the sealing cover 3. The sealing cover 3 is placed on the upper end of the test chamber 1. A control panel 6 is fixedly installed on the upper end of the control box 5.

[0021] Specifically, the switching cylinder 4 pushes the sealing cover 3 to rotate around the connecting hinge 2, thereby opening or sealing the inside of the test chamber 1, and the control panel 6 plays the role of operation control.

[0022] Please refer to this carefully. Figure 2 and Figure 3 The stirring mechanism 7 includes a stirring motor 8, a stirring rod 9, a blade mounting plate 10, and stirring blades 11. The stirring motor 8 is fixedly installed on the upper end of the sealing cover 3, the stirring rod 9 is fixedly installed on the lower end of the rotating shaft of the stirring motor 8, the blade mounting plate 10 is fixedly installed on the lower end of the stirring rod 9, and multiple stirring blades 11 are fixedly installed on the lower end of the blade mounting plate 10.

[0023] Please refer to this carefully. Figure 2 and Figure 3The blade mounting plate 10 and the agitator blade 11 are located below the sealing cover 3, with the agitator blade 11 positioned between the two salt spray nozzles 17.

[0024] Specifically, the stirring motor 8 drives the stirring rod 9 to rotate, thereby causing the blade mounting plate 10 and the stirring blade 11 to rotate. The rotation of the stirring blade 11 is used to stir the salt spray inside the test chamber 1 and the sealing cover 3.

[0025] Please refer to this carefully. Figure 4 The rotating shaft of the rotary motor 12 is fixedly connected to one end of the reciprocating lead screw 13, and the reciprocating collar 15 slides back and forth around the reciprocating lead screw 13.

[0026] Specifically, the bottom of the salt spray nozzle 16 is inserted into the salt spray delivery pipe and outputs salt spray, which is then sprayed from the salt spray nozzle 17 into the test chamber 1 and the sealing cover 3 to conduct salt spray tests on the stored workpieces. The operation of the rotary motor 12 drives the reciprocating screw 13 to rotate, and the rotation of the reciprocating screw 13 drives the reciprocating collar 15 to slide back and forth, thereby driving the salt spray nozzle 16 and the salt spray nozzle 17 to perform reciprocating motion, so as to evenly spray the salt spray into the test chamber 1 and the sealing cover 3.

[0027] Please refer to this carefully. Figure 2 and Figure 3 A guide ring 18 is fixedly installed on the outer side of the salt spray nozzle 16 above the reciprocating collar 15. A guide rod 19 is movably installed in front of the guide ring 18. The two ends of the guide rod 19 are fixedly connected to the inner wall of the test chamber 1.

[0028] Specifically, when the salt spray nozzle 16 reciprocates, the guide ring 18 slides around the guide rod 19 to achieve a positioning effect.

[0029] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-sealing salt spray test chamber, comprising a test chamber housing (1), a connecting hinge (2), a sealing cover (3), and a control box (5), wherein the connecting hinge (2) is fixedly installed at the rear end of the test chamber housing (1), the sealing cover (3) is movably installed on the outside of the connecting hinge (2), and the control box (5) is fixedly installed on one side of the test chamber housing (1), characterized in that: A stirring mechanism (7) is fixedly installed on the top of the sealing cover (3). Two reciprocating screws (13) are movably installed on the inner side of the test chamber (1). A connecting rod (14) is fixedly installed between the two reciprocating screws (13). A reciprocating collar (15) is sleeved on the outer side of the reciprocating screw (13). A salt spray nozzle (16) is fixedly installed behind the reciprocating collar (15). A salt spray nozzle (17) is fixedly installed at the upper end of the salt spray nozzle (16). A rotary motor (12) is fixedly installed inside the control box (5).

2. The high-sealing salt spray test chamber according to claim 1, characterized in that: A switch cylinder (4) is fixedly installed on one side of the test chamber (1). The upper end of the piston rod of the switch cylinder (4) is movably connected to one side of the sealing cover (3). The sealing cover (3) is placed on the upper end of the test chamber (1). A control panel (6) is fixedly installed on the upper end of the control box (5).

3. The high-sealing salt spray test chamber according to claim 1, characterized in that: The stirring mechanism (7) includes a stirring motor (8), a stirring rod (9), a blade mounting plate (10), and stirring blades (11). The stirring motor (8) is fixedly installed on the upper end of the sealing cover (3), the stirring rod (9) is fixedly installed on the lower end of the rotating shaft of the stirring motor (8), the blade mounting plate (10) is fixedly installed on the lower end of the stirring rod (9), and multiple stirring blades (11) are fixedly installed on the lower end of the blade mounting plate (10).

4. A high-sealing salt spray test chamber according to claim 3, characterized in that: The blade mounting plate (10) and the agitator blade (11) are located below the sealing cover (3), with the agitator blade (11) located between the two salt spray nozzles (17).

5. A high-sealing salt spray test chamber according to claim 1, characterized in that: The rotating shaft of the rotary motor (12) is fixedly connected to one end of the reciprocating lead screw (13), and the reciprocating collar (15) slides back and forth around the reciprocating lead screw (13).

6. A high-sealing salt spray test chamber according to claim 1, characterized in that: A guide ring (18) is fixedly installed on the outside of the salt spray nozzle (16) above the reciprocating collar (15). A guide rod (19) is movably installed in front of the guide ring (18). The two ends of the guide rod (19) are fixedly connected to the inner wall of the test chamber (1).

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