Spraying structure for salt spray testing machine

Abstract

The utility model discloses a spray structure for a salt spray testing machine, which comprises a water inlet pipe and a spray pipe, the water inlet pipe is communicated with the spray pipe, the water inlet pipe is connected to external equipment, a turbulent flow mechanism is arranged on the water inlet pipe, and the turbulent flow mechanism comprises a sealing sleeve, a stop lever, a turbulent flow sheet, a bearing sleeve, a sealing pipe, a bottom sleeve and a follow-up mechanism, the sealing sleeve is installed in the water inlet pipe, the stop lever is connected into the sealing sleeve in a sliding mode, the multiple spoilers are arranged, the spoiler mechanism can effectively control flowing of fluid, the possibility of turbulent flow generation is reduced, and by means of the design of the sealing sleeve and the stop lever and the application of the spoilers, the turbulent flow can be effectively controlled. The turbulent flow mechanism optimizes the flow path of fluid while adjusting the flow speed, the spoilers are inserted into the insertion grooves in the bearing sleeve, the angle can be adjusted along with movement of the stop lever, and therefore the diameter from the water inlet pipe to the inlet of the spray pipe is changed, and the Reynolds number is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying for a salt spray test machine, and more specifically, to a spraying structure for a salt spray test machine. Background Art

[0002] In the prior art, the salt spray test machine is used to simulate a high-salt environment to test the corrosion resistance of materials. The key part is the spray structure, which controls the amount of salt water sprayed by adjusting the flow rate to ensure the accuracy and consistency of the test. Usually, the flow rate is adjusted by adjusting the opening of the baffle. This method allows the operator to flexibly adjust the flow rate according to the test requirements, thereby simulating salt spray environments of different intensities.

[0003] However, this flow rate adjustment method has a significant disadvantage: when the flow rate is set too high, the position adjustment of the baffle may cause turbulence in the fluid flow, especially in the narrow part of the baffle and the nozzle. The generation of turbulence not only increases the friction inside the fluid, but also may cause uneven spray, thus affecting the uniformity of salt spray distribution and the repeatability of test results. In addition, turbulence may also cause premature wear of the spray structure, reducing the service life and reliability of the equipment. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a spray structure for a salt spray test machine to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spray structure for a salt spray test machine, comprising a water inlet pipe and a nozzle, the water inlet pipe is connected to the nozzle, the water inlet pipe is connected to external equipment, a spoiler mechanism is arranged on the water inlet pipe, the spoiler mechanism comprises a sealing sleeve, a baffle rod, a spoiler, a receiving sleeve, a sealing pipe, a bottom sleeve and a follower mechanism, the sealing sleeve is installed in the water inlet pipe, the baffle rod is slidably connected in the sealing sleeve, a plurality of spoilers are arranged, and the plurality of spoilers are respectively installed on the lower end surface of the baffle rod, the bottom sleeve is connected to the water inlet pipe, the sealing pipe is threadedly connected in the bottom sleeve, the receiving sleeve is slidably connected in the sealing pipe, a plurality of insertion grooves are provided in the receiving sleeve, the spoiler is slidably connected in the insertion grooves, and the follower mechanism is installed on the water inlet pipe.

[0008] The utility model is further configured that expansion angles are respectively provided on the upper and lower end surfaces of the receiving sleeve, and a plurality of the expansion angles are connected in the insertion groove. The design of the expansion angles ensures the convenience of inserting the spoiler.

[0009] The utility model is further configured that a chamfer is provided on the side wall of each spoiler, and a rounded corner is provided on the lower end surface of the baffle rod, and the chamfer design reduces the flow resistance.

[0010] The utility model is further configured that a hexagonal groove is provided on the lower end surface of the sealing tube, the hexagonal groove and the sealing tube are coaxially arranged, and the design of the hexagonal groove ensures convenient rotation of the sealing tube.

[0011] The utility model is further configured such that the follower mechanism includes a top sleeve and a push spring, the top sleeve is threadedly connected to the water inlet pipe, the spring sleeve is connected to the baffle rod, and the two ends of the spring are respectively in contact with the sealing sleeve and the top sleeve. The design of the follower mechanism ensures the convenience of adjustment.

[0012] The utility model is further configured that a protruding block is provided on the side wall of the water inlet pipe, a rotating shaft is rotatably provided on the protruding block, a handle is rotatably provided on the rotating shaft, and the design of the protruding block ensures the limiting position of the handle.

[0013] The utility model is further configured that a tension spring is provided on the baffle rod, a clamping block is coaxially provided on the tension spring, and the design of the tension spring ensures the compensation amount of rotation.

[0014] The utility model is further configured that a clamping slot is provided on the handle, the clamping block is fitted on the clamping slot, and the tension spring passes through the clamping slot. The design of the clamping slot ensures convenient clamping of the clamping block.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a spray structure for a salt spray test machine, which has the following beneficial effects:

[0017] 1. The spoiler mechanism can effectively control the flow of fluid and reduce the possibility of turbulence. Through the design of the sealing sleeve and the baffle rod, and the application of the spoiler, the spoiler mechanism optimizes the flow path of the fluid while adjusting the flow rate. These spoilers are inserted into the insertion groove in the receiving sleeve, and the angle can be adjusted with the movement of the baffle rod, thereby changing the inlet diameter from the water inlet pipe to the nozzle, effectively reducing the Reynolds number and inhibiting the formation of turbulence. The chamfered design further reduces the resistance of the fluid at the nozzle inlet, improves the uniformity and efficiency of the spray, and reduces friction, which is critical to improving the stability of the spray structure and extending its service life.

[0018] 2. The follow-up mechanism provides a flexible and precise control method. Through the combination of the top sleeve and the push spring, and the coordinated work of the handle and the rotating shaft, the follow-up mechanism makes the adjustment of the baffle rod smoother and more accurate. The existence of the tension spring allows the baffle rod to be fine-tuned in the vertical direction to compensate for the deviation caused by operation or mechanical error, ensuring the continuity and uniformity of the spray, thereby maintaining a high standard of spray quality under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a spray structure for a salt spray test machine in the utility model;

[0020] Figure 2 For the utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0021] Figure 3 It is a schematic diagram of the explosion structure of the spoiler mechanism in the utility model;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the water inlet pipe in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the sealing tube in the utility model.

[0024] In the figure: 1. water inlet pipe; 2. nozzle; 3. sealing sleeve; 4. baffle; 5. spoiler; 6. receiving sleeve; 7. sealing pipe; 8. bottom sleeve; 9. insertion groove; 10. expansion angle; 11. chamfer; 12. rounded corner; 13. hexagonal groove; 14. top sleeve; 15. push spring; 16. extension block; 17. rotating shaft; 18. handle; 19. tension spring; 20. clamping block; 21. clamping slot. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] See also Figure 1-5A spray structure for a salt spray test machine includes a water inlet pipe 1 and a nozzle 2. The water inlet pipe 1 is connected to the nozzle 2, and the water inlet pipe 1 is connected to an external device. A spoiler mechanism is provided on the water inlet pipe 1. The spoiler mechanism includes a sealing sleeve 3, a baffle rod 4, a spoiler 5, a receiving sleeve 6, a sealing pipe 7, a bottom sleeve 8 and a follower mechanism. The sealing sleeve 3 is installed in the water inlet pipe 1, and the baffle rod 4 is slidably connected in the sealing sleeve 3. A plurality of spoilers 5 are provided, and the plurality of spoilers 5 are respectively installed on the lower end surface of the baffle rod 4. The bottom sleeve 8 is connected to the water inlet pipe 1, and the sealing pipe 7 is screwed. The groove is connected in the bottom sleeve 8, the receiving sleeve 6 is slidably connected in the sealing tube 7, a plurality of insertion grooves 9 are provided in the receiving sleeve 6, the spoiler 5 is slidably connected in the insertion groove 9, the follower mechanism is installed on the water inlet pipe 1, and the upper and lower end faces of the receiving sleeve 6 are respectively provided with expansion angles 10, and the plurality of expansion angles 10 are connected in the insertion groove 9, a chamfer 11 is provided on the side wall of each spoiler 5, a fillet 12 is provided on the lower end face of the baffle rod 4, a hexagonal groove 13 is provided on the lower end face of the sealing tube 7, and the hexagonal groove 13 and the sealing tube 7 are coaxially arranged.

[0029] In this embodiment, when spraying is required, the handle 18 is used to drive the baffle rod 4 to slide along the sealing sleeve 3. When the opening on the nozzle 2 becomes larger, the multiple spoilers 5 at the lower end of the baffle rod 4 are inserted into the insertion groove 9, so the multiple spoilers 5 will be stretched outward. Since the sealing tube 7 is threadedly connected to the bottom sleeve 8, it will be sealed. The hexagonal groove 13 ensures the convenience of rotation, so that the insertion tube is sealed, and the chamfers 11 on the multiple spoilers 5 will effectively reduce the equivalent diameter at the inlet of the nozzle 2, thereby reducing the Reynolds number and suppressing the generation of turbulence, thereby reducing the friction in the fluid.

[0030] See also Figures 2 to 5 As an implementation method of the follow-up mechanism: the follow-up mechanism includes a top sleeve 14 and a push spring 15, the top sleeve 14 is threadedly connected to the water inlet pipe 1, the spring is sleeved on the baffle rod 4, and the two ends of the spring are respectively in contact with the sealing sleeve 3 and the top sleeve 14, a protruding block 16 is provided on the side wall of the water inlet pipe 1, a rotating shaft 17 is rotatably provided on the protruding block 16, a handle 18 is rotatably provided on the rotating shaft 17, a tension spring 19 is provided on the baffle rod 4, a clamping block 20 is coaxially provided on the tension spring 19, a clamping slot 21 is opened on the handle 18, the clamping block 20 is fitted on the clamping slot 21, and the tension spring 19 passes through the clamping slot 21.

[0031] More specifically, when the opening of the blocking rod 4 needs to be adjusted, the handle 18 rotates along the rotating shaft 17. Since the block 20 is stuck in the slot 21, it will drive the movement of the tension spring 19. When the handle 18 is rotated, it rotates along the rotating shaft 17, but the blocking rod 4 can only slide vertically along the sealing sleeve 3. Therefore, the extension and contraction amount can be compensated by the tension spring 19, and then the blocking rod 4 is driven to be pulled upward, thereby completing the unlocking process.

[0032] In summary, when the overall equipment is in use or running: when spraying is required, the handle 18 is used to drive the baffle rod 4 to slide along the sealing sleeve 3. When the opening on the nozzle 2 becomes larger, the multiple spoilers 5 at the lower end of the baffle rod 4 are inserted into the insertion groove 9, so the multiple spoilers 5 will be stretched outward. Since the sealing tube 7 is threadedly connected to the bottom sleeve 8, it will be sealed. The hexagonal groove 13 ensures the convenience of rotation, so that the insertion tube is sealed, and the chamfers 11 on the multiple spoilers 5 will effectively reduce the equivalent diameter at the inlet of the nozzle 2, thereby reducing the Reynolds number and suppressing the generation of turbulence, thereby reducing the friction in the fluid.

[0033] When the opening of the blocking rod 4 needs to be adjusted, the handle 18 rotates along the rotating shaft 17. Since the block 20 is stuck in the slot 21, it will drive the movement of the tension spring 19. Since the handle 18 rotates along the rotating shaft 17, but the blocking rod 4 can only slide vertically along the sealing sleeve 3, the tension spring 19 can compensate for its expansion and contraction, and then drive the blocking rod 4 to be pulled upward, thereby completing the unlocking process.

[0034] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A spray structure for a salt spray test machine, comprising a water inlet pipe (1) and a nozzle (2), wherein the water inlet pipe (1) is connected to the nozzle (2), and the water inlet pipe (1) is connected to an external device, wherein: The water inlet pipe (1) is provided with a spoiler mechanism, which comprises a sealing sleeve (3), a baffle (4), a spoiler (5), a receiving sleeve (6), a sealing tube (7), a bottom sleeve (8) and a follower mechanism. The sealing sleeve (3) is installed in the water inlet pipe (1), the baffle (4) is slidably connected in the sealing sleeve (3), a plurality of spoilers (5) are provided, and the plurality of spoilers (5) are respectively installed on the lower end surface of the baffle (4), the bottom sleeve (8) is connected to the water inlet pipe (1), the sealing tube (7) is threadedly connected in the bottom sleeve (8), the receiving sleeve (6) is slidably connected in the sealing tube (7), a plurality of insertion grooves (9) are provided in the receiving sleeve (6), the spoiler (5) is slidably connected in the insertion grooves (9), and the follower mechanism is installed on the water inlet pipe (1).

2. The spray structure for a salt spray test machine according to claim 1, characterized in that: The upper and lower end surfaces of the receiving sleeve (6) are respectively provided with expansion angles (10), and a plurality of the expansion angles (10) are connected to the insertion groove (9).

3. The spray structure for a salt spray test machine according to claim 2, characterized in that: A chamfer (11) is provided on the side wall of each spoiler (5), and a rounded corner (12) is provided on the lower end surface of the blocking rod (4).

4. The spray structure for a salt spray test machine according to claim 3 is characterized in that: A hexagonal groove (13) is provided on the lower end surface of the sealing tube (7), and the hexagonal groove (13) and the sealing tube (7) are coaxially arranged.

5. The spray structure for a salt spray test machine according to claim 1, characterized in that: The follower mechanism comprises a top sleeve (14) and a push spring (15), wherein the top sleeve (14) is threadedly connected to the water inlet pipe (1), the spring is sleeved on the blocking rod (4), and the two ends of the spring are respectively in contact with the sealing sleeve (3) and the top sleeve (14).

6. The spray structure for a salt spray test machine according to claim 5, characterized in that: A protruding block (16) is provided on the side wall of the water inlet pipe (1), a rotating shaft (17) is rotatably provided on the protruding block (16), and a handle (18) is rotatably provided on the rotating shaft (17).

7. The spray structure for a salt spray test machine according to claim 6, characterized in that: The blocking rod (4) is provided with a tension spring (19), and a clamping block (20) is coaxially provided on the tension spring (19).

8. The spray structure for a salt spray test machine according to claim 7, characterized in that: The handle (18) is provided with a card slot (21), the card block (20) is fitted on the card slot (21), and the tension spring (19) passes through the card slot (21).

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