Salt spray detection test device for brake hose

Abstract

The utility model relates to the field of automobile part detection, and discloses a brake hose salt mist detection test device which comprises a salt mist box, electric push rods are rotatably connected to the outer walls of the left side and the right side of the salt mist box, a cover plate is rotatably connected to the top of the salt mist box, and an atomization assembly is arranged at the bottom of the outer wall of the left side of the salt mist box. A rotating assembly is arranged in the middle of the outer wall of the left side of the salt mist box, a filtering assembly is installed on the rear side of the outer wall of the salt mist box, the rotating assembly comprises a shell, the shell is installed in the middle of the outer wall of the left side of the salt mist box, an impeller is rotationally connected to the interior of the shell, and a rotating shaft is fixedly connected to the side, close to the salt mist box, of the impeller. According to the utility model, in the test process, the brake hose can rotate continuously, so that each surface of the whole brake hose can be fully and uniformly exposed in a salt mist environment, the overall comprehensive detection of the brake hose is ensured, and the situation that the accurate judgment on the corrosion resistance of the brake hose is influenced due to the fact that the local part is not fully detected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts detection especially relates to a brake hose salt mist detection test device. BACKGROUND

[0002] Brake hoses are exposed to various complex environmental conditions during vehicle operation. Salt mist environment simulates a humid atmosphere containing salt, such as in coastal areas or after road salting for ice removal. Through salt mist detection, the ability of brake hoses to resist corrosion in such harsh environments can be determined to ensure the safety and reliability of the brake system.

[0003] Traditional salt mist detection devices often cannot ensure that the brake hose is evenly exposed to the salt mist environment during the test. Usually, the brake hose is in a static state in the salt mist box, which makes the distribution of salt mist in the box uneven and the limitation of natural diffusion easily leads to the fact that only part of the surface of the brake hose is fully exposed to the salt mist, while other parts may not be able to be fully tested for corrosion due to shielding or being in a low salt mist concentration area. Therefore, a brake hose salt mist detection test device is proposed. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a brake hose salt mist detection test device, which aims to improve the problem that each part is difficult to evenly contact the salt mist environment in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a brake hose salt mist detection test device, comprising a salt mist box, the left and right two sides of the salt mist box are rotatably connected with electric push rods, the top of the salt mist box is rotatably connected with a cover plate, the bottom of the left side of the salt mist box is provided with an atomization assembly, the middle of the left side of the salt mist box is provided with a rotating assembly, and the rear side of the outer wall of the salt mist box is provided with a filter assembly.

[0006] The rotating assembly comprises a shell, the shell is installed in the middle of the left side of the salt mist box, the inside of the shell is rotatably connected with an impeller, the side of the impeller close to the salt mist box is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with two rotating discs, and the opposite sides of the two rotating discs are both installed with clamping assemblies.

[0007] Further description of the above technical scheme:

[0008] The atomization assembly includes a liquid storage tank fixedly connected to the left outer wall bottom of the salt mist box, a water pump fixedly connected to the top of the liquid storage tank, a water pipe connected between the water pump input end and the liquid storage tank, a conveying pipe fixedly connected to the water pump output end, and a plurality of atomizing nozzles fixedly connected to the conveying pipe outer wall along the length direction.

[0009] As a further description of the above technical solution:

[0010] The filtering assembly includes a vacuum pump and a filter box, both fixedly connected to the rear wall of the salt mist box, the filter box internally provided with fine filter paper and activated carbon filter plates, the filter box internally provided with a fixing assembly, a pipeline connected between the vacuum pump and the filter box, and a pipeline installed between the filter box and the salt mist box interior.

[0011] As a further description of the above technical solution:

[0012] The fixing assembly includes a pressing rod and a clamping block, both slidingly connected to the filter box interior, the pressing rod outer wall fixedly connected to a limiting block, the limiting block bottom fixedly connected to a first spring, the clamping block outer wall fixedly connected to a protruding block, and the clamping block end away from the fine filter paper fixedly connected to a second spring.

[0013] As a further description of the above technical solution:

[0014] The clamping assembly includes a mounting plate fixedly connected to the opposite side of two rotating discs, a bidirectional screw rod rotationally connected to the mounting plate interior, two sliding blocks threadedly connected to the bidirectional screw rod outer wall, and a clamping plate fixedly connected to the sliding block side away from the mounting plate.

[0015] As a further description of the above technical solution:

[0016] The salt mist box outer wall right side is provided with a controller, and the electric push rod output end is rotationally connected to the cover plate outer wall.

[0017] As a further description of the above technical solution:

[0018] The shell is installed in the conveying pipe outer wall middle part, and the rotating shaft is rotationally connected to the salt mist box interior.

[0019] As a further description of the above technical solution:

[0020] The pressing rod end away from the limiting block is obliquely shaped and fits with the protruding block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the impeller in the rotating assembly is driven to rotate by the power or airflow generated by the flow of salt solution in the conveying pipe, the clamping assembly on the rotating disc firmly fixes the brake hose. During the test, the brake hose can continuously rotate, so that each surface of the brake hose can be fully and uniformly exposed to the salt spray environment, ensuring comprehensive detection of the brake hose as a whole and avoiding the influence of insufficient detection on the accurate judgment of the corrosion resistance.

[0023] 2. In the utility model, the filter assembly comprises a vacuum pump and a filter box provided with fine filter paper and activated carbon filter plates. The vacuum pump extracts the air and residual salt mist in the salt mist box after the test, and the air and residual salt mist are purified by the filter box. The fine filter paper can effectively filter the small solid particle impurities in the salt mist, and the activated carbon filter plate can adsorb odors and part of harmful gases, so that the pollution of the salt mist to the environment is significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of a brake hose salt mist test device is provided for the utility model;

[0025] Figure 2 A vacuum pump schematic diagram of a brake hose salt mist test device is provided for the utility model;

[0026] Figure 3 An atomizing nozzle schematic diagram of a brake hose salt mist test device is provided for the utility model;

[0027] Figure 4 A shell cross-sectional view of a brake hose salt mist test device is provided for the utility model;

[0028] Figure 5 A filter box cross-sectional view of a brake hose salt mist test device is provided for the utility model;

[0029] Figure 6 A filter screen cross-sectional view of a brake hose salt mist test device is provided for the utility model.

[0030] LEGEND:

[0031] 1, salt spray chamber; 2, cover plate; 3, electric push rod; 4, liquid storage tank; 5, water pump; 6, conveying pipe; 7, atomizing nozzle; 8, shell; 9, impeller; 10, rotating shaft; 11, rotating disc; 12, mounting plate; 13, bidirectional screw; 14, sliding block; 15, clamping plate; 16, vacuum pump; 17, filter box; 18, fine filter paper; 19, activated carbon filter plate; 20, pressing rod; 21, limiting block; 22, first spring; 23, clamping block; 24, protrusion; 25, second spring; 26, controller. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Referring to Figures 1-3 , the utility model provides an embodiment: a kind of brake hose salt spray test device, including salt spray chamber 1, and the electric push rod 3 is rotationally connected on the left and right two sides outer wall of salt spray chamber 1, and the telescopic movement of electric push rod 3 can drive the rotation of the component connected therewith, to realize the opening and closing control of the cover plate 2 of salt spray chamber 1 top, it is convenient to place and take out brake hose sample, and the cover plate 2 is rotationally connected on the top of salt spray chamber 1, and the cover plate 2 can be opened or closed salt spray chamber 1 under the action of electric push rod 3. Atomization assembly is arranged on the left side outer wall bottom of salt spray chamber 1, and atomization assembly can atomize salt solution into small particles, form salt fog environment, to simulate the harsh corrosive environment that brake hose can encounter in actual use, and rotating assembly is arranged on the left side outer wall middle part of salt spray chamber 1, and rotating assembly can make brake hose rotate in salt spray chamber 1, ensure that each part of brake hose can evenly contact salt fog, so that test result is more accurate and reliable. Filter assembly is installed on the rear side of the outer wall of salt spray chamber 1, and filter assembly can filter the salt fog after test, remove impurities and salt in it, prevent pollution environment;

[0034] Referring to Figure 1 , Figure 2 and Figure 4The rotating assembly comprises a housing 8 which is installed in the middle of the left outer wall of the salt mist chamber 1. The housing 8 serves to protect the internal components and is fixedly installed. The housing 8 is internally rotatably connected with an impeller 9. When there is airflow or liquid flow in the housing 8, the impeller 9 can be driven to rotate. The impeller 9 is fixedly connected with a rotating shaft 10 which is close to one side of the salt mist chamber 1. The rotating shaft 10 transmits the rotation of the impeller 9 to the inside of the salt mist chamber 1. The rotating shaft 10 is fixedly connected with two rotating discs 11 which are synchronously rotated under the driving of the rotating shaft 10. The two rotating discs 11 are each installed with a clamping assembly on the opposite side. The clamping assembly is used to firmly fix the brake hose so that the brake hose will not fall off or shift during the rotation of the rotating disc 11, thereby ensuring the smooth progress of the test.

[0035] With reference to Figures 1-3 The atomizing assembly comprises a liquid storage tank 4 which is fixedly connected to the bottom of the left outer wall of the salt mist chamber 1. The liquid storage tank 4 is used to store the salt solution and provide raw materials for the generation of the salt mist. The top of the liquid storage tank 4 is fixedly connected with a water pump 5. The water pump 5 can pump out the salt solution in the liquid storage tank 4 and deliver it to the subsequent pipeline. A water pipe is connected between the input end of the water pump 5 and the liquid storage tank 4. The water pipe is used to realize the pumping of the salt solution in the liquid storage tank 4 by the water pump 5. The output end of the water pump 5 is fixedly connected with a delivery pipe 6. The delivery pipe 6 delivers the salt solution pumped out by the water pump 5 to a specific position inside the salt mist chamber 1. The end of the delivery pipe 6 which is far away from the water pump 5 is fixedly connected to the inner wall of the salt mist chamber 1. A plurality of atomizing nozzles 7 are fixedly connected to the outer wall of the delivery pipe 6 along the length direction. The plurality of atomizing nozzles 7 can atomize the salt solution delivered by the delivery pipe 6 into tiny salt mist particles and uniformly scatter them in the salt mist chamber 1, so as to make the salt mist environment more uniform and stable and ensure that the salt mist erosion conditions of each part of the brake hose are consistent.

[0036] With reference to Figure 2 、 Figure 5 and Figure 6The filtering assembly comprises a vacuum pump 16 and a filtering box 17, both of which are fixedly connected to the rear wall of the salt mist box 1, the vacuum pump 16 can extract the air and residual salt mist in the salt mist box 1 after the salt mist test is completed, so that the salt mist is quickly discharged from the salt mist box 1, the filtering box 17 is internally provided with fine filter paper 18 and activated carbon filter plate 19, the fine filter paper 18 can filter out the tiny solid particle impurities in the salt mist, the activated carbon filter plate 19 can adsorb the peculiar smell and part of the harmful gas in the salt mist, and the two can effectively purify the salt mist and reduce the pollution to the environment. The filtering box 17 is internally provided with a fixing assembly for fixing the fine filter paper 18 and the activated carbon filter plate 19, so that they will not be displaced or loosened during the filtering process, the stability of the filtering effect is ensured, the vacuum pump 16 and the filtering box 17 are connected by a pipeline, and the salt mist extracted by the vacuum pump 16 is conveyed to the filtering box 17 for filtering. The filtering box 17 and the salt mist box 1 are internally provided with a pipeline, so that the salt mist in the salt mist box 1 can accurately enter the filtering box 17 for filtering.

[0037] With reference to Figure 6 The fixing assembly comprises a pressing rod 20 and a clamping block 23, both of which are slidingly connected to the inside of the filtering box 17, the pressing rod 20 can slide in the filtering box 17 under the action of external force, thereby driving the clamping block 23 to act, the outer wall of the pressing rod 20 is fixedly connected with a limiting block 21, the limiting block 21 can limit the sliding range of the pressing rod 20, preventing it from being excessively slid out of the filtering box 17, the bottom of the limiting block 21 is fixedly connected with a first spring 22, the first spring 22 can provide a restoring force after the pressing rod 20 is pressed down, so that the pressing rod 20 can be automatically reset, the outer wall of the clamping block 23 is fixedly connected with a protruding block 24, the protruding block 24 interacts with the pressing rod 20 to realize the locking and unlocking of the clamping block 23, the end of the clamping block 23 away from the fine filter paper 18 is fixedly connected with a second spring 25, the second spring 25 can keep the clamping block 23 in a certain position in the unlocked state, facilitating the installation and disassembly of the fine filter paper 18 and the activated carbon filter plate 19.

[0038] With reference to Figure 4 The clamping assembly comprises a mounting plate 12, which is fixedly connected to one side of the two rotating discs 11 opposite to each other, and provides a mounting basis for other clamping components, the mounting plate 12 is rotatably connected with a bidirectional screw rod 13 inside, the bidirectional screw rod 13 can make the two sliding blocks 14 connected with the outer wall by threads move away from or towards each other when rotating, the outer wall of the bidirectional screw rod 13 is threadedly connected with the two sliding blocks 14, the two sliding blocks 14 can adjust the distance between each other under the drive of the bidirectional screw rod 13, the side of the sliding block 14 away from the mounting plate 12 is fixedly connected with a clamping plate 15, which is used for directly contacting and clamping the brake hose, and the stable clamping of brake hoses with different diameters is realized through the movement of the sliding block 14, thereby improving the applicability of the device.

[0039] With reference to Figures 1-3 The controller 26 is arranged on the right side of the outer wall of the salt mist chamber 1, and can centrally control the electric push rod 3, the water pump 5, the vacuum pump 16 and other components. The operator can set parameters and operation processes according to test requirements, so as to realize automatic control, improve test efficiency and accuracy, the output end of the electric push rod 3 is rotationally connected to the outer wall of the cover plate 2, so that the electric push rod 3 can accurately control the opening and closing action of the cover plate 2, and the reliability of the sealing and opening of the salt mist chamber 1 is ensured.

[0040] With reference to Figures 2-4 The shell 8 is mounted in the middle of the outer wall of the conveying pipe 6, which is beneficial to the rotation of the impeller 9 in the shell 8 by using the power or airflow generated when the salt solution in the conveying pipe 6 flows, so as to provide power for the rotation of the rotating disc 11 and the brake hose. The rotating shaft 10 is rotationally connected to the inside of the salt mist chamber 1, so as to ensure the stable rotation of the rotating shaft 10 in the salt mist chamber 1, smoothly transfer the rotation of the impeller 9 to the rotating disc 11, and realize the rotation detection of the brake hose in the salt mist environment.

[0041] With reference to Figure 6 The end of the pressing rod 20 away from the limiting block 21 is obliquely shaped and is in contact with the convex block 24. The oblique shape design enables the pressing rod 20 to push the clamping block 23 to slide through the interaction between the inclined surface and the convex block 24 when the pressing rod 20 is pressed down, so as to realize the quick locking and unlocking of the fine filter paper 18 and the activated carbon filter plate 19, and facilitate the maintenance and replacement of the filter assembly.

[0042] Working principle: when the brake hose needs to be detected by salt spray, the electric push rod 3 is extended to open the cover plate 2, then the hose to be detected is placed between the two clamping plates 15, and the two-way screw rod 13 is rotated to drive the two sliding blocks 14 to slide relatively or apart, thereby driving the two clamping plates 15 to slide and fixing the hose, when the hose is fixed, the water pump 5 is started, when the water pump 5 is started, the mixed liquid in the liquid storage tank 4 is conveyed to the atomizing nozzle 7 through the conveying pipe 6 for spraying, when the mixed liquid is conveyed, the impeller 9 is driven to rotate, when the impeller 9 rotates, the rotating shaft 10 is driven to rotate, and the rotating disc 11 is driven to rotate through the rotating shaft 10, further driving the two-way screw rod 13 to rotate, so that the brake hose rotates to increase the contact area with the salt spray, when the hose test is completed, the vacuum pump 16 is started, and the air in the salt spray tank 1 is extracted by low pressure to further separate the salt spray from the salt spray tank 1, in the process of extraction, the fine filter paper 18 and the activated carbon filter plate 19 in the filter box 17 adsorb small particles and harmful gases in the salt spray, so that clean air is discharged, when the fine filter paper 18 and the activated carbon filter plate 19 need to be cleaned after long-term use, the pressing rod 20 is pressed to slide, when the pressing rod 20 slides, the limiting block 21 is driven to slide, further extruding the first spring 22, at the same time, the bottom of the pressing rod 20 is inclined, so that the pressing rod 20 slides to drive the lug 24 to slide, when the lug 24 slides, the second spring 25 is extruded, when the lug 24 is separated from the fine filter paper 18, the fine filter paper 18 and the activated carbon filter plate 19 can be taken out for cleaning, after cleaning, the fine filter paper 18 and the activated carbon filter plate 19 are placed in the filter box 17 again, the potential energy of the second spring 25 is used to drive the clamping block 23 to reset, so that the clamping block 23 and the fine filter paper 18 are re-clamped to fix the fine filter paper 18 and the activated carbon filter plate 19.

[0043] Finally, it should be pointed out that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included in the protection scope of the present application.

Claims

1. A device for salt spray test of brake hose, comprising a salt spray chamber (1), characterized in that: The both sides of the salt spray chamber (1) are rotatably connected with electric push rods (3), the top of the salt spray chamber (1) is rotatably connected with a cover plate (2), the bottom of the left side of the salt spray chamber (1) is provided with an atomization assembly, the middle of the left side of the salt spray chamber (1) is provided with a rotating assembly, and the rear of the salt spray chamber (1) is provided with a filtering assembly. The rotating assembly comprises a shell (8), the shell (8) is installed in the middle of the left side of the salt spray chamber (1), the inside of the shell (8) is rotatably connected with an impeller (9), the side of the impeller (9) close to the salt spray chamber (1) is fixedly connected with a rotating shaft (10), the outer wall of the rotating shaft (10) is fixedly connected with two rotating discs (11), and the opposite sides of the two rotating discs (11) are both fixedly connected with clamping assemblies.

2. The apparatus for testing brake hose according to claim 1, wherein: The atomization assembly comprises a liquid storage tank (4), the liquid storage tank (4) is fixedly connected to the bottom of the left side of the salt spray chamber (1), the top of the liquid storage tank (4) is fixedly connected with a water pump (5), the input end of the water pump (5) is connected with the liquid storage tank (4) through a water pipe, the output end of the water pump (5) is fixedly connected with a conveying pipe (6), the end of the conveying pipe (6) away from the water pump (5) is fixedly connected to the inner wall of the salt spray chamber (1), and a plurality of atomizing nozzles (7) are fixedly connected to the outer wall of the conveying pipe (6) along the length direction.

3. The apparatus according to claim 1, wherein: The filtering assembly comprises a vacuum pump (16) and a filtering box (17), the vacuum pump (16) and the filtering box (17) are both fixedly connected to the rear wall of the salt spray chamber (1), the inside of the filtering box (17) is provided with fine filter paper (18) and activated carbon filter plates (19), the inside of the filtering box (17) is provided with a fixing assembly, the vacuum pump (16) and the filtering box (17) are connected through a pipeline, and the filtering box (17) and the inside of the salt spray chamber (1) are connected through a pipeline.

4. The apparatus according to claim 3, wherein: The fixing assembly comprises a pressing rod (20) and a clamping block (23), the outer walls of the pressing rod (20) and the clamping block (23) are both slidably connected to the inside of the filtering box (17), the outer wall of the pressing rod (20) is fixedly connected with a limiting block (21), the bottom of the limiting block (21) is fixedly connected with a first spring (22), the outer wall of the clamping block (23) is fixedly connected with a protruding block (24), and the end of the clamping block (23) away from the fine filter paper (18) is fixedly connected with a second spring (25).

5. The apparatus of claim 1, wherein: The clamping assembly comprises a mounting plate (12), the mounting plate (12) is fixedly connected to the opposite sides of the two rotating discs (11), the inside of the mounting plate (12) is rotatably connected with a bidirectional screw rod (13), the outer wall of the bidirectional screw rod (13) is threadedly connected with two sliding blocks (14), and the side of the sliding block (14) away from the mounting plate (12) is fixedly connected with a clamping plate (15).

6. The apparatus of claim 1, wherein: The right side of the outer wall of the salt spray chamber (1) is provided with a controller (26), and the output end of the electric push rod (3) is rotatably connected to the outer wall of the cover plate (2).

7. The apparatus of claim 2, wherein: The shell (8) is installed in the middle part of the outer wall of the conveying pipe (6), and the rotating shaft (10) is rotatably connected in the inside of the salt fog box (1).

8. The apparatus of claim 4, wherein: The end of the pressing rod (20) away from the limiting block (21) is in an inclined shape and is in close contact with the protrusion (24).

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