A spray performance test system

Abstract

This utility model discloses a spray performance testing system. The testing system has a spray chamber at its center, which is equipped with multiple spray trays, distance scales, and distance indicator lights. One end of the spray chamber is equipped with a spray platform mechanism. The spray platform mechanism loads the test specimen through a spray frame assembly, and a rotatable aluminum profile frame is rotatably connected to the spray frame assembly. The rotatable aluminum profile frame is equipped with a fixing clamp and a spring clamp. The spray frame assembly is equipped with a cylinder switch structure. In this utility model, the rotatable aluminum profile frame can be folded and rotated to meet the installation and switching of nozzles and spray pipe test specimens. The cylinder switch structure is adjustable through the cylinder stroke and has an attached spring mechanism to prevent damage to the test specimen. The pressing block has an adjustable slot hole, so pressing the test specimen switch does not damage the test specimen. The use of a distance scale and distance indicator light structure, along with the use of spray trays to assist in measuring the spray distance, greatly improves the accuracy of the spray distance in complex testing environments.

Description

Technical Field

[0001] This utility model relates to the field of jet performance testing technology, and in particular to a jet performance testing system. Background Technology

[0002] A fire extinguisher is a portable fire-fighting tool. It contains chemicals used to extinguish fires. Fire extinguishers are common fire-fighting equipment, stored in public places or areas where fires may occur. Different types of fire extinguishers contain different components and are designed for different types of fires. To ensure the performance of fire extinguishers, their performance characteristics need to be tested.

[0003] Currently, most existing fire extinguisher performance testing devices rely on manual or semi-automatic testing, which cannot display real-time curves of weight, pressure, and time changes, lack video recording, and make data traceable. Many devices still adhere to outdated standards, requiring multiple operators, resulting in large errors and inaccuracies. Sensors used for spray lag time cannot effectively test the status of all fire extinguishers. Nozzle and nozzle structures are incompatible. Testing fire extinguishers requires adjusting the height of the testing device, has a low success rate, and results in specimen waste.

[0004] Therefore, existing technologies still need to be improved and enhanced. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a spray performance testing system, which aims to solve the problems of incompatibility between existing testing devices and fire extinguisher structures with nozzles and spray pipes, fire extinguisher heights that are not uniform and cannot be compatible with the testing device, resulting in low test success rate and waste of test specimens.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A spray performance testing system is provided, with a spray chamber at the center of the system. Multiple spray trays are provided on the bottom surface of the spray chamber, and distance scales and distance indicator lights are provided on the inner side of the spray chamber. A spray frame mechanism is provided at one end of the spray chamber. The spray frame mechanism loads the test specimen through a spray frame assembly, and a rotatable aluminum profile frame is rotatably connected to the spray frame assembly. The rotatable aluminum profile frame is provided with fixing clamps and spring clamps. A cylinder switch structure is provided on the spray frame assembly, and the output end of the cylinder switch structure is arranged facing the test specimen.

[0007] Furthermore, a camera is also installed inside the spray booth, and the camera is fixed in place by a camera mounting bracket.

[0008] Furthermore, an electrical control cabinet assembly is provided on one side of the spray room. The electrical control cabinet assembly consists of an electrical control cabinet body and electrical control cabinet casters. Multiple electrical control cabinet casters are provided at the bottom of the electrical control cabinet body. From top to bottom, the electrical control cabinet body is provided with a three-color alarm light, a display structure, an industrial control unit, and an aviation connector.

[0009] Furthermore, the main body of the spraying platform mechanism is a movable spraying platform, which contains a spraying frame assembly. An electronic balance is installed at the lower end of the spraying frame assembly. A pressure sensor is also fixed on the movable spraying platform via a pressure sensor adapter, with the pressure sensor facing the specimen.

[0010] Furthermore, the spraying frame assembly consists of a spraying profile frame, a rotatable aluminum profile frame, and a specimen fixing slide. The rotatable aluminum profile frame is hinged to the front end of the spraying profile frame. The rotatable aluminum profile frame is equipped with a fixing clamp and a spring clamp. The specimen fixing slide is located in the middle of the spraying profile frame. A cylinder switch structure is located at the upper end of the spraying profile frame. The output end of the cylinder switch structure is arranged facing the specimen. A handle bracket is also provided on the upper end of the specimen fixing slide on the spraying profile frame. An accessory tray is also provided on the side of the spraying profile frame.

[0011] Furthermore, the cylinder switch structure is an adjustable stroke cylinder. The adjustable stroke cylinder is fixed to the spray profile frame via a cylinder connecting seat, and the cylinder connecting seat is fixed by knurled screws M6X20 and hexagonal nuts M6 236. The output end of the adjustable stroke cylinder is connected to a pressing bracket, and a pressing block is slidably connected inside the pressing bracket. The pressing block is slidably connected to the pressing bracket via a shaft pin group and a sliding groove. The end of the pressing block is also provided with a shock-absorbing spring arranged along the length direction of the pressing bracket. The adjustable stroke cylinder is also provided with a stroke sensing switch.

[0012] Furthermore, the specimen fixing slide is an adjustable lifting platform. The adjustable lifting platform is fixed to the middle of the sprayed profile frame through the slide connecting plate. The output end of the adjustable lifting platform is equipped with a V-shaped plate, and multiple fixing magnets are fixed inside the V-shaped plate by M8X20 internal hex screws.

[0013] Furthermore, the movable spraying platform is a shell frame that surrounds three sides. The bottom of the shell frame is equipped with casters, the side of the shell frame is equipped with a central electrical control cabinet, and the middle of the shell frame is also equipped with a handle.

[0014] Furthermore, a dustproof plate assembly is provided at the interface connecting the spray booth to the spray table mechanism. The dustproof plate assembly is made of plexiglass, and an aluminum alloy brush is fixed on the plexiglass plate by M5X15 cross-slot pan head screws.

[0015] Furthermore, a spray sensing component is also provided at the interface connecting the spray booth to the spray platform mechanism. The spray sensing component includes a sensing bracket, a photoelectric bracket, and an intermittent spray bracket. The sensing bracket is installed on the inner wall of the spray booth. The photoelectric bracket and the intermittent spray bracket are connected to the sensing bracket. The photoelectric bracket is fixed by a set of M6X15 hex bolts. A photoelectric sensor is installed on the photoelectric bracket. A limit switch is installed on the intermittent spray bracket. A baffle is installed at the end of the limit switch. The limit switch is fixed by a set of M4X15 hex bolts.

[0016] The technical solution adopted in this utility model has the following beneficial effects: In this invention, the spraying platform mechanism is movable, allowing for easy and flexible adjustment via a handle; it employs an electronic balance for overall weighing, resulting in higher testing accuracy and system stability; the spraying profile frame is constructed from lightweight aluminum profiles, facilitating easy installation; the rotatable aluminum profile frame can be folded and rotated to accommodate the installation and switching of nozzles and spray pipes for specimens; the adjustable cylinder assembly features adjustable cylinder stroke and a spring mechanism to prevent damage to the specimens; the pressing block has adjustable slots to prevent damage to the specimens; the specimen mounting slide uses a V-shaped frame and magnetic attachment to securely and quickly fix the specimens, and, combined with the universal handle bracket in the spraying device, installation is convenient, quick, and time-saving; the dustproof plate assembly uses an acrylic glass structure, allowing observation of the spraying process, and is equipped with an aluminum alloy brush. The structure meets sealing requirements and will not cause harm to operators. The spray sensing component for dry powder fire extinguishers uses a mechanical limit switch combined with a baffle structure design, based on a simple transistor principle, to test the spray lag time, resulting in fast response and zero error. For water-based, carbon dioxide, and clean gas fire extinguishers, the spray sensing component uses a photoelectric sensor structure for testing the spray lag time, designed and calibrated for accurate testing. A pressure sensor adapter connects to the pressure sensor, allowing for real-time testing of fire extinguisher pressure. A camera records the spraying process, and video can be retrieved at any time for data confirmation and traceability. The spray plate assists in measuring the spray distance. The use of a distance scale and distance indicator light greatly improves the accuracy of the spray distance in complex testing environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structural components of the portable fire extinguisher spraying device of this utility model; Figure 2 This is a schematic diagram of the electrical control cabinet components of this utility model; Figure 3 This is a schematic diagram of the spraying platform mechanism of this utility model; Figure 4 This is a schematic diagram of the movable spraying platform of this utility model; Figure 5 This is a schematic diagram of the spraying device of this utility model; Figure 6 This is a schematic diagram of the cylinder switch structure of this utility model; Figure 7 This is a schematic diagram of the specimen fixing slide of this utility model; Figure 8 This is a schematic diagram of the dustproof panel assembly of this utility model; Figure 9 This is a schematic diagram of the jet sensing component of this utility model.

[0018] In the diagram: 1. Electrical control cabinet assembly; 11. Electrical control cabinet body; 12. Electrical control cabinet casters; 13. Aviation connector; 14. Three-color alarm light; 15. Display structure; 16. Industrial control unit; 2. Spraying platform mechanism; 21. Movable spraying platform; 211. Shell frame; 212. Movable casters; 213. Intermediate electrical control cabinet; 214. Handle; 22. Electronic balance; 23. Spraying frame assembly; 231. Spraying profile frame; 232. Accessory tray; 233. Cylinder switch structure; 2331. Cylinder connecting seat; 2332. Adjustable stroke cylinder; 2333. Stroke induction switch; 2334. Press bracket; 2335. Shock-absorbing spring; 2336. Press block; 2337. Pin assembly; 234. Knurled screw M6X20; 235. Hex nut M6; 236. Rotatable aluminum profile frame; 237. Fire extinguisher handle bracket; 238. 1. Specimen fixing slide; 2381. Slide connecting plate; 2382. Adjustable lifting platform; 2383. V-shaped plate; 2384. Fixing magnet; 2385. M8X20 socket head cap screw; 24. Fire extinguisher; 25. Fixing clamp; 26. Spring clamp; 27. Pressure sensor connector; 28. Pressure sensor; 3. Dustproof plate assembly; 31. Acrylic glass plate; 32. Aluminum alloy brush; 33. M5X15 Phillips head pan head screw; 4. Spray sensing assembly; 41. Sensing fixing bracket; 42. Photoelectric bracket; 43. Photoelectric sensor; 44. Intermittent spray bracket; 45. Limit switch; 46. Baffle; 47. M6X15 socket head cap screw assembly; 48. M4X15 socket head cap screw assembly; 5. Camera; 6. Camera mounting bracket; 7. Spray support plate; 8. Distance scale; 9. Distance indicator light; 10. Spray chamber. Detailed Implementation

[0019] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] Reference Figure 1This utility model provides a spray performance testing system, comprising an electrical control cabinet assembly 1, a spray stand mechanism 2, a dustproof plate assembly 3, a spray sensor assembly 4, a camera 5, a camera mounting bracket 6, a spray support plate 7, a distance scale 8, a distance indicator light 9, and a spray chamber 10. The electrical control cabinet assembly 1 provides software and electronic human-machine interface functions for testing; the spray stand mechanism 2 provides specimen installation and opening functions; the dustproof plate assembly 3 provides dust protection and nozzle installation functions for the test specimens; the spray sensor assembly 4 provides a lag time function for testing different specimens; the camera 5 provides the function of recording the test process and spray distance; the camera mounting bracket 6 provides support for the camera 5; the spray support plate 7 provides auxiliary evidence for testing the spray distance (through the location of sediment during the process); the distance scale 8 provides a reference dimension for testing the spray distance; and the distance indicator light 9 provides a distance indicator light 10. The indicator light 9 provides illumination for testing the spraying distance; the spraying chamber 10 provides the testing area. The electrical control cabinet assembly 1 and the spraying platform mechanism 2 are located at the spray nozzle of the spraying chamber 10 and can be moved using casters. The camera 5 and camera mounting bracket 6 are placed in front of the transparent glass of the spraying chamber 10, allowing recording of the spraying process; their position can be moved according to the spraying distance of the specimen. The spraying brackets are placed inside the spraying chamber 10, evenly distributed, to assist in testing the spraying distance. The dustproof plate assembly 3 is attached to the spray nozzle using a magnetic adhesive plate. The spraying sensor assembly 4 is attached to the spray nozzle of the spraying chamber 10 via a glass slot. The distance scale 8 is glued to the back of the spraying chamber 10. The distance indicator light 9 is installed above and below the meter readings on the distance scale 8 using fixing screws; different colored indicator light strips on both sides of the meter readings are used to distinguish the distance readings. The test system is centered on a spray chamber 10. Multiple spray trays 7 are provided on the bottom surface of the spray chamber 10. Distance scales 8 and distance indicator lights 9 are provided on the inner side of the spray chamber 10. A spray frame mechanism 2 is provided at one end of the spray chamber 10. The spray frame mechanism 2 loads the test specimen through a spray frame assembly 23. A rotatable aluminum profile frame 236 is rotatably connected to the spray frame assembly 23. A fixing clamp 25 and a spring clamp 26 are provided on the rotatable aluminum profile frame 236. A cylinder switch structure 233 is provided on the spray frame assembly 23. The output end of the cylinder switch structure 233 is arranged facing the test specimen.

[0021] In this embodiment, a camera 5 is also provided inside the spraying chamber 10, and the camera 5 is fixed by a camera mounting bracket 6.

[0022] In this embodiment, refer to Figure 2The electrical control cabinet assembly 1 comprises an electrical control cabinet body 11, electrical control cabinet casters 12, aviation connector interface 13, three-color alarm light 14, display assembly, and industrial control unit 16 components. The electrical control cabinet assembly 1 is located on one side of the spray room 10. The electrical control cabinet assembly 1 consists of an electrical control cabinet body 11 and electrical control cabinet casters 12. Multiple electrical control cabinet casters 12 are provided at the bottom of the electrical control cabinet body 11. The electrical control cabinet body 11 is provided with a three-color alarm light 14, a display structure 15, an industrial control unit 16, and an aviation connector interface 13 from top to bottom.

[0023] The electrical control cabinet 11 houses the industrial control computer and electrical components; the casters 12 provide movement and leveling / fixing functions; the aviation connector 13 provides quick connection for movement and transport; the three-color alarm light 14 provides status indication; the display assembly provides a human-machine interface for testing; and the 16 industrial control computer units provide host functions for testing. The casters 12, aviation connector 13, display assembly, three-color alarm light 14, and industrial control computer units 16 are all bolted to the electrical control cabinet 11.

[0024] Reference Figure 3 The spraying platform mechanism 2 includes a movable spraying platform 21, an electronic balance 22, a spraying frame assembly 23, a fire extinguisher 24, a fixing clamp 25, a spring clamp 26, a pressure sensor adapter 27, and a pressure sensor 28. The movable spraying platform 21 is used for fixing and moving the device; the electronic balance 22 provides overall weighing; the spraying frame assembly 23 is used for installing, fixing, and adjusting the test specimen; the fixing clamp and spring clamp 26 are used for fixing the nozzle. The electronic balance 22 rests horizontally on the lower part of the movable spraying platform 21. The nozzle of the fire extinguisher 24 is fixed to the spraying frame assembly by the fixing clamp 25 and the spring clamp 26. The spraying frame assembly 23 is placed entirely on the electronic balance 22. A pressure sensor 28 is also fixed on the movable spraying platform 21 through the pressure sensor adapter 27. The pressure sensor 28 is arranged facing the test specimen. The pressure sensor adapter 27 is used to connect to the pressure sensor 28, which allows for real-time testing of the fire extinguisher pressure.

[0025] Reference Figure 4 The movable spraying stand 21 is a shell frame 211 that surrounds three sides. The bottom of the shell frame 211 is equipped with casters 212, the side of the shell frame 211 is equipped with a central electrical control cabinet 213, and the middle of the shell frame 211 is also equipped with a handle 214. The shell frame 211 provides a fixed support function, the casters 212 provide a movement and leveling function, the central electrical control cabinet 213 provides a function for placing electrical accessories, and the handle 214 provides a handrail function for the movable spraying stand 21. All accessories are installed on the shell frame 211 by bolt connection.

[0026] Reference Figure 5The main body of the spraying frame mechanism 2 is a movable spraying frame 21. The movable spraying frame 21 is equipped with a spraying frame assembly 23. An electronic balance 22 is provided at the lower end of the spraying frame assembly 23. The spraying frame assembly 23 consists of a spraying profile frame 231, a rotatable aluminum profile frame 236, and a specimen fixing slide 238. The rotatable aluminum profile frame 236 is hinged to the front end of the spraying profile frame 231. A fixing clamp 25 and a spring clamp 26 are provided on the rotatable aluminum profile frame 236. A specimen fixing slide 238 is provided in the middle of the spraying profile frame 231. A cylinder switch structure 233 is provided at the upper end of the spraying profile frame 231. The output end of the cylinder switch structure 233 is arranged facing the specimen. A handle bracket 237 is also provided on the spraying profile frame 231 at the upper end of the specimen fixing slide 238. An accessory tray 232 is also provided on the side of the spraying profile frame 231. The spray profile frame 231 provides support and installation for spray testing, the accessory tray 232 provides accessory fixing function, the cylinder switch structure 233 is fixed to the spray profile frame 231 by knurled screws M6X20 234 and hexagonal nuts M6 235, the rotatable aluminum profile frame 236 provides rotation support for the test fire extinguisher 24, which can be rotated 90 degrees to avoid interference caused by insufficient test position of the test nozzle specimen, the fire extinguisher 24 handle bracket 237 provides support and fixation for the fire extinguisher 24, and the specimen fixing slide 238 provides fixation for the fire extinguisher 24; all accessories are installed on the spray frame assembly 23 by bolt connection.

[0027] Reference Figure 6The cylinder switch structure 233 is an adjustable stroke cylinder 2332. The adjustable stroke cylinder 2332 is fixed to the spray profile frame 231 via a cylinder connecting seat 2331, and the cylinder connecting seat 2331 is secured by knurled screws M6X20 234 and hexagonal nuts M6. The adjustable stroke cylinder 2332 is fixed in place and its output end is connected to a pressing bracket 2334. A pressing block 2336 is slidably connected inside the pressing bracket 2334. The pressing block 2336 is slidably connected to the pressing bracket 2334 via a pin assembly and a sliding groove. A shock-absorbing spring 2335 is also provided at the end of the pressing block 2336, arranged along the length of the pressing bracket 2334. The adjustable stroke cylinder 2332 is also equipped with a stroke sensing switch 2333. The cylinder connecting seat 2331 serves to fix the cylinder. The adjustable stroke cylinder 2332 can be adjusted according to the pressing stroke of the specimen, providing an automatic pressing function. The stroke sensing switch 2333 transmits the pressing position signal. The pressing bracket 2334 serves to fix the cylinder. The shock-absorbing spring 2335 is designed according to the opening force to reduce shock and prevent damage to the test piece. The pressing block 2336 presses the test piece. The pin assembly 2337 is used to fix the pressing block 2336 and the pressing bracket 2334. The adjustable stroke cylinder 2332 is installed on the cylinder connecting seat 2331 by fixing screws. The stroke sensing switch 2333 is installed in the slide groove of the adjustable stroke cylinder 2332. The pressing bracket 2334 is connected and fixed to the adjustable stroke cylinder 2332 by the cylinder connecting nut. The shock-absorbing spring 2335 and the pressing block 2336 are fixed on the pressing bracket 2334 by the pin assembly 2337. The pressing bracket 2334 has an elongated hole, which can buffer and prevent damage to the test piece from cylinder overload.

[0028] Reference Figure 7 The specimen fixing slide 238 is an adjustable lifting platform 2382. The adjustable lifting platform 2382 is fixed to the middle of the sprayed profile frame 231 via a slide connecting plate 2381. The output end of the adjustable lifting platform 2382 is provided with a V-shaped plate 2383. Multiple fixing magnets 2384 are fixed inside the V-shaped plate 2383 by M8X20 socket head cap screws 2385. The slide connecting plate 2381 serves as a fixed connection. The adjustable lifting platform 2382 serves to adjust the width according to the outer diameter of the specimen. The V-shaped plate 2383 is designed according to the radius of the specimen to support and tighten the specimen. The fixing magnets 2384 serve to attract the specimen. The M8X20 socket head cap screws 2385 serve to install the fixing magnets to the V-shaped plate 2383. All accessories are connected by bolts.

[0029] Reference Figure 8A dustproof plate assembly 3 is provided at the interface connecting the spray booth 10 to the spray frame mechanism 2. The dustproof plate assembly 3 is made of plexiglass plate 31. An aluminum alloy brush 32 is fixed on the plexiglass plate 31 by cross-slot pan head screws M5X15 33. The plexiglass plate 31 serves to fix and observe the spraying status, while the aluminum alloy brush 32 serves to prevent dust and prevent the backflow of smoke and dust. The cross-slot pan head screws M5X15 33 are used to fix the plexiglass plate 31 and the aluminum alloy brush 32.

[0030] Reference Figure 9 A spray sensing component 4 is also provided at the interface connecting the spray booth 10 to the spray platform mechanism 2. The spray sensing component 4 includes a sensing mounting bracket 41, a photoelectric bracket 42, and an intermittent spray bracket 44. The sensing mounting bracket 41 is located on the inner wall of the spray booth 10. The photoelectric bracket 42 and the intermittent spray bracket 44 are connected to the sensing mounting bracket 41. The photoelectric bracket 42 is fixed by a set of M6X15 47 hex bolts. A photoelectric sensor 43 is provided on the photoelectric bracket 42. A limit switch 45 is provided on the intermittent spray bracket 44. A baffle 46 is provided at the end of the limit switch 45. The limit switch 45 is fixed by a set of M4X15 hex bolts. 48 is fixed; the sensing bracket 41 serves as a support and connection, the photoelectric bracket 42 serves as a fixation for the photoelectric sensor 43, the photoelectric sensor 43 serves as a detector for the spray signal from the fire extinguisher 24, the intermittent spray bracket 44 serves as a connection for the limit switch 45, the limit switch 45 serves as a detector for the spray signal from the dry powder fire extinguisher 24, the baffle 46 serves as a detection plate for the spray from the fire extinguisher 24, and the M6X15 hex bolt group 47 and the M4X15 hex bolt group 48 serve as a fixed connection. Among them, the photoelectric sensor 43 is fixed to the photoelectric bracket 42 by its own nut clamp 25, and the rest are fixed by bolt connection.

[0031] Furthermore, in the embodiments of this utility model, this testing system can be used to test existing portable fire extinguishers to detect common standard water-based, carbon dioxide, dry powder, and clean gas fire extinguisher products. It has a wide coverage, is adjustable, highly versatile, has high testing accuracy, is easy to operate, and is highly efficient. At the same time, it can also be used to test other equipment and devices similar to portable fire extinguishers.

[0032] In this invention, the spraying platform mechanism 2 is movable, adjustable by the handle 214, allowing for flexible and convenient movement. An electronic balance 22 is used for overall weighing, resulting in higher testing accuracy and system stability. The spraying profile frame 231 is made of aluminum profile, making it lightweight and easy to install. The rotatable aluminum profile frame 236 can be folded and rotated to accommodate the installation and switching of nozzles and spray pipes for the test specimens. The adjustable cylinder assembly is adjustable via cylinder stroke and includes a spring mechanism to prevent damage to the test specimens. The pressing block 2336 has adjustable slots to prevent damage to the test specimens. The test specimen fixing slide 238 uses a V-shaped frame and magnetic attraction to securely and quickly fix the test specimens. Combined with the universal handle bracket 237 in the spraying device, installation is convenient and quick, saving time. The dustproof plate assembly 3 uses an organic glass plate 31 structure, allowing observation of the spraying process, and is made of aluminum alloy. The brush 32 structure meets sealing requirements and will not cause harm to operators; it uses a pressure sensor adapter 27 to connect with the pressure sensor 28, which can test the fire extinguisher pressure in real time; the spray sensing component 4 uses a mechanical limit switch 45 and a baffle 46 structure to test the spray lag time of dry powder fire extinguishers 24, based on a simple transistor principle, with fast test response and no error; the spray sensing component 4 uses a photoelectric sensor 43 structure to test the spray lag time of water-based, carbon dioxide, and clean gas fire extinguishers 24, with design and verification for accurate testing; a camera 5 records the spraying process, and the video can be retrieved at any time for data confirmation and traceability; the spray support plate 7 can assist in measuring the spray distance; the use of a distance scale 8 and a distance indicator light 9 greatly improves the accuracy of the spray distance in complex testing environments.

Claims

1. A spray performance testing system, characterized in that, The center of the test system is the spraying chamber (10). Multiple spraying trays (7) are provided on the bottom surface of the spraying chamber (10). Distance scales (8) and distance indicator lights (9) are provided on the inner side of the spraying chamber (10). A spraying platform mechanism (2) is provided at one end of the spraying chamber (10). The spraying platform mechanism (2) loads the specimen through the spraying frame assembly (23) and a rotatable aluminum profile frame (236) is rotatably connected to the spraying frame assembly (23). A fixing clamp (25) and a spring clamp (26) are provided on the rotatable aluminum profile frame (236). A cylinder switch structure (233) is provided on the spraying frame assembly (23). The output end of the cylinder switch structure (233) is arranged facing the specimen.

2. The spray performance testing system according to claim 1, characterized in that, A camera (5) is also installed in the spraying room (10), and the camera (5) is fixed by a camera mounting bracket (6).

3. The spray performance testing system according to claim 1, characterized in that, An electrical control cabinet assembly (1) is provided on one side of the spray room (10). The electrical control cabinet assembly (1) consists of an electrical control cabinet body (11) and electrical control cabinet casters (12). Multiple electrical control cabinet casters (12) are provided at the bottom of the electrical control cabinet body (11). From top to bottom, the electrical control cabinet body (11) is provided with a three-color alarm light (14), a display structure (15), an industrial control computer unit (16), and an aviation plug interface (13).

4. The spray performance testing system according to claim 1, characterized in that, The main body of the spraying platform mechanism (2) is a movable spraying platform (21). The movable spraying platform (21) is equipped with a spraying frame assembly (23). An electronic balance (22) is provided at the lower end of the spraying frame assembly (23). A pressure sensor (28) is also fixed on the movable spraying platform (21) through a pressure sensor adapter (27). The pressure sensor (28) is arranged facing the specimen.

5. The spray performance testing system according to claim 2, characterized in that, The spraying frame assembly (23) consists of a spraying profile frame (231), a rotatable aluminum profile frame (236), and a specimen fixing slide (238). The rotatable aluminum profile frame (236) is hinged to the front end of the spraying profile frame (231). The rotatable aluminum profile frame (236) is provided with a fixing clamp (25) and a spring clamp (26). The specimen fixing slide (238) is provided in the middle of the spraying profile frame (231). The upper end of the spraying profile frame (231) is provided with a cylinder switch structure (233). The output end of the cylinder switch structure (233) is arranged facing the specimen. The spraying profile frame (231) is also provided with a handle bracket (237) located at the upper end of the specimen fixing slide (238). The side of the spraying profile frame (231) is also provided with an accessory tray (232).

6. The spray performance testing system according to claim 5, characterized in that, The cylinder switch structure (233) is an adjustable stroke cylinder (2332). The adjustable stroke cylinder (2332) is fixed on the spray profile frame (231) through the cylinder connecting seat (2331). The cylinder connecting seat (2331) is fixed by knurled screw M6X20 (234) and hexagonal nut M6 (235). The output end of the adjustable stroke cylinder (2332) is connected to a pressing bracket (2334). A pressing block (2336) is slidably connected inside the pressing bracket (2334). The pressing block (2336) is slidably connected to the pressing bracket (2334) through a shaft pin group and a sliding groove. The end of the pressing block (2336) is also provided with a shock-absorbing spring (2335) arranged along the length direction of the pressing bracket (2334). The adjustable stroke cylinder (2332) is also provided with a stroke sensing switch (2333).

7. The spray performance testing system according to claim 5, characterized in that, The specimen fixing slide (238) is an adjustable lifting platform (2382). The adjustable lifting platform (2382) is fixed to the middle of the spray profile frame (231) through the slide connecting plate (2381). The output end of the adjustable lifting platform (2382) is provided with a V-shaped plate (2383). Multiple fixing magnets (2384) are fixed inside the V-shaped plate (2383) by internal hexagonal screws M8X20 (2385).

8. The spray performance testing system according to claim 4, characterized in that, The movable spraying stand (21) is a shell plate frame (211) surrounded on three sides. The bottom of the shell plate frame (211) is equipped with movable casters (212), the side of the shell plate frame (211) is equipped with a central electrical control cabinet (213), and the middle of the shell plate frame (211) is also equipped with a handle (214).

9. The spray performance testing system according to claim 1, characterized in that, A dustproof plate assembly (3) is provided at the interface connecting the spray booth (10) and the spray frame mechanism (2). The dustproof plate assembly (3) is made of plexiglass plate (31). An aluminum alloy brush (32) is fixed on the plexiglass plate (31) by cross-slot pan head screws M5X15 (33).

10. The spray performance testing system according to claim 1, characterized in that, A spray sensing component (4) is also provided at the interface connecting the spray booth (10) and the spray platform mechanism (2). The spray sensing component (4) includes a sensing bracket (41), a photoelectric bracket (42), and an intermittent spray bracket (44). The sensing bracket (41) is located on the inner wall of the spray booth (10). The photoelectric bracket (42) and the intermittent spray bracket (44) are connected to the sensing bracket (41). The photoelectric bracket (42) is fixed by a set of M6X15 (47) internal hex bolts. A photoelectric sensor (43) is provided on the photoelectric bracket (42). A limit switch (45) is provided on the intermittent spray bracket (44). A baffle (46) is provided at the end of the limit switch (45). The limit switch (45) is fixed by a set of M4X15 (48) internal hex bolts.

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