Waterproof performance detection workshop for automobile modification

Abstract

The invention relates to a waterproof performance detection workshop for automobile refitting, and relates to the technical field of automobile refitting, the waterproof performance detection workshop comprises a base, the upper surface of the base is fixedly connected with a workshop steel frame, the lower surface of the workshop steel frame is fixedly connected with a limiting frame, and the interior of the limiting frame is slidably connected with a spraying device; the spraying device comprises a sliding frame, a first water pipe, a first hose and a first spray head, and an angle adjusting device is fixedly connected to the lower surface of the sliding frame and comprises a first sliding rail, a first rack, a first gear and a first rotating rod. The spraying device is designed, the detection piece can be driven to move relatively in the horizontal moving process of the spraying device, the linkage effect that the spraying device moves and drives the detection piece to move is achieved, the complex condition that a vehicle shuttles in rainy days is simulated instead of being static, and therefore the data accuracy is improved, and the angle adjusting device is used for adjusting the angle of the vehicle. The angle of the spray head can be adjusted, so that rainfall in different directions is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile modification, in particular to a waterproof performance testing workshop for automobile modification. Background Art

[0002] Currently, during the car modification process, in order to meet the needs of enhancing sound insulation and expanding the interior space, the original roof needs to be removed and replaced with a customized new roof. After the new roof is replaced, in order to ensure the safety and comfort of the vehicle, the modified car needs to be tested for its waterproof performance. The waterproof test is mainly carried out by simulating dynamic rain. The nozzles on the water supply pipe and multiple branch pipes cooperate with each other to form a fixed multi-nozzle array, which sprays the car for dynamic rain testing.

[0003] Upon investigation, the disclosure (announcement) number: CN110496721B discloses a "position-adjustable, split-type vehicle rain test rear spray device". This technology discloses "including two sets of guide rail assemblies, two bracket bottom support platforms, two vertical support frames, two oblique brackets, two sets of piping systems, two rolling assemblies, and two rotary assemblies; the rear spray device is disconnected in a split manner to meet the needs of vehicles entering and exiting the test area, and the two parts of the split spray bracket are rotated and moved to both sides, which can greatly save laboratory space. After the vehicle enters the test area, the split spray device is quickly closed and connected together to increase the firmness of the device. Manual movement can be used to adjust the distance from the rear of the test vehicle to meet the test requirements of vehicles of different sizes."

[0004] Although the above technical solution is position-adjustable and uses manual movement to adjust the distance from the rear of the test vehicle to meet the test requirements of vehicles of different sizes, it only uses the nozzles on the water supply pipe and multiple branch pipes to cooperate with each other to form a fixed multi-nozzle array, spraying the car at a constant water pressure and angle for dynamic rain testing. It cannot fully simulate the various complex situations in the actual use environment, such as water flow impact at different angles, waterproof performance under different water pressures, etc., and it cannot simulate the scenario of a vehicle shuttling through rainwater, resulting in significant limitations in the test results.

[0005] In order to solve the above problems, this application proposes a waterproof performance testing workshop for automobile modification. Summary of the Invention

[0006] (1) Technical problems solved In view of the shortcomings of the existing technology, the present invention provides a waterproof performance testing workshop for automobile modification, which solves the problems of unadjustable spray angle, inability to simulate water shuttle scenarios, and insufficient simulation results.

[0007] (2) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a waterproof performance testing workshop for automobile modification, comprising a base, the upper surface of the base being fixedly connected to a workshop steel frame, the lower surface of the workshop steel frame being fixedly connected to a limit frame, the interior of the limit frame being slidably connected to a spray device, the spray device slide, a No. 1 water pipe, a No. 1 hose, and a No. 1 nozzle, the interior of the slide being fixedly connected to the No. 1 water pipe, the interior of the No. 1 water pipe being connected to the No. 1 hose, the lower end of the No. 1 hose being fixedly connected to the No. 1 nozzle; The lower surface of the slide is fixedly connected with an angle adjustment device, and the angle adjustment device includes a No. 1 slide rail, a No. 1 rack, a No. 1 gear and a No. 1 rotating rod. The lower surface of the slide is fixedly connected with a connecting column, and the lower end of the connecting column is fixedly connected to the No. 1 slide rail, the inner wall portion of the No. 1 slide rail is in contact with the No. 1 rack, the side surface of the No. 1 rack is meshed with the No. 1 gear, the interior of the No. 1 gear is fixedly connected to the No. 1 rotating rod, the side surface of the No. 1 nozzle is fixedly connected to the No. 1 rotating rod, and the lower surface of the slide is fixedly connected with a lifting ear, and both ends of the No. 1 rotating rod are rotatably connected to the lifting ear; A reciprocating device is installed on the workshop steel frame, and the reciprocating device includes motor No. 1, an eccentric rod and a push-pull rod. The upper surface of motor No. 1 is fixedly connected to the workshop steel frame, the output end of motor No. 1 is fixedly connected to the eccentric rod, the end of the eccentric rod away from motor No. 1 is rotatably connected to the push-pull rod, and the end of the push-pull rod away from the eccentric rod is hinged to the slide.

[0008] Preferably, the interior of the No. 1 rack is rotatably connected to a T-screw, the side surface of the T-screw is threadedly connected to a nut, and the side surface of the T-screw is threadedly connected to a connecting column.

[0009] By adopting the above technical solution, the T-screw is threadedly connected to the connecting column, so that when the T-screw rotates, it can push the No. 1 rack to slide on the inner wall of the No. 1 slide rail. When the No. 1 slide rail slides horizontally, it can drive the No. 1 gear to rotate, and the No. 1 gear drives the No. 1 rotating rod to rotate, so that the No. 1 rotating rod drives multiple No. 1 sprinklers to rotate, thereby achieving the effect of adjusting the angle of the No. 1 sprinkler. By tightening the nut, the T-screw will not loosen after stopping rotation, so that the angle of the No. 1 sprinkler remains fixed, thereby simulating rain tests at different angles and improving the accuracy of the test results.

[0010] Preferably, a water tank is provided inside the base, a No. 2 slide rail is fixedly connected inside the water tank, a No. 2 rack is slidably connected to the outer surface of the No. 2 slide rail, an L-shaped leg is fixedly connected inside the No. 2 rack, the upper end of the L-shaped leg is fixedly connected to a base, a plurality of perforations are provided inside the base, a drain pipe is provided inside the base, and the drain pipe is communicated with the water tank.

[0011] By adopting the above technical solution and providing a plurality of perforations, the water sprayed on the detection piece placed on the support platform can fall into the water tank below through the perforations and then be discharged through the drain pipe, which is convenient for drainage.

[0012] Preferably, the upper surface of the No. 2 rack is meshedly connected with the No. 2 gear, the interior of the No. 2 gear is fixedly connected with the No. 2 rotating rod, both ends of the No. 2 rotating rod are rotatably connected with a bracket, and the lower end of the bracket is fixedly connected to the base.

[0013] By adopting the above technical solution, by engaging the No. 2 gear with the No. 2 rack, the No. 2 gear can drive the No. 2 rack to translate on the No. 2 slide rail when it rotates, thereby realizing the translation of the platform, and then simulating the scene of the modified parts on the platform moving through the rain.

[0014] Preferably, a No. 3 rack is fixedly connected to the lower end of the slide, and the lower surface of the No. 3 rack is meshed with the No. 2 gear.

[0015] By adopting the above technical solution, by meshing the No. 2 gear with the No. 2 gear, the No. 3 rack drives the No. 2 gear to rotate as the slide reciprocates horizontally, so that the No. 2 gear drives the No. 2 rack to reciprocate horizontally, thereby realizing the staggered reciprocating motion of the spray device and the supporting platform, that is, the spray device moves forward, the supporting platform moves backward, the spray device moves backward, and the supporting platform moves forward, simulating the scene of a car shuttling in the rain and improving the accuracy of the detection results.

[0016] Preferably, the upper surface of the base is fixedly connected with four guide rods distributed in a rectangular array, the upper ends of the guide rods are fixedly connected with a horizontal plate, the upper surface of the horizontal plate is fixedly connected with a No. 2 motor, the output end of the No. 2 motor is fixedly connected with a screw rod, the side surface of the screw rod is threadedly connected with a lifting plate, the interior of the lifting plate is fixedly connected with electric telescopic rods symmetrically distributed front and back, the end of the electric telescopic rod away from the lifting plate is fixedly connected with a fixing frame, the interior of the fixing frame is fixedly connected with a No. 2 water pipe, the interior of the No. 2 water pipe is provided with a No. 2 nozzle, and the side surface of the guide rod is slidably connected to the lifting plate.

[0017] By adopting the above technical solution, a No. 2 motor is set up, and the No. 2 motor is used to drive the screw to rotate to realize the lifting and lowering of the lifting plate, and the extension and retraction of the electric telescopic rod is used to drive the movement of the No. 2 water pipe and the No. 2 nozzle, thereby realizing the adjustment of the height and distance of the side spray of the inspection part.

[0018] Preferably, the interior of the No. 1 hose is connected to the No. 2 hose, the upper end of the No. 2 hose is fixedly connected to the No. 3 hose, the lower end of the No. 3 hose is connected to the No. 1 water pipe, the upper end of the No. 3 hose is fixedly connected to the pump, the input end of the pump is fixedly connected to the water tank, and the lower surfaces of the pump and the water tank are fixedly connected to the workshop steel frame.

[0019] By adopting the above technical solution, a pump and a water tank are set up, so that the water in the water tank can be pumped into the No. 1 water pipe and the No. 2 water pipe respectively by the pump, and then sprayed out from the top and side of the detection part by the No. 1 nozzle and the No. 2 nozzle, thereby simulating a multi-directional rain scene.

[0020] (3) Beneficial effects In summary, this application includes at least one of the following beneficial technical effects: 1. A waterproof performance testing workshop for automobile modification is designed with a spray device that can spray the test parts below to test their waterproof performance. The spray device can also drive the test parts to move relative to each other during horizontal movement, achieving a linkage effect in which the spray device moves and drives the test parts to move. This simulates the complex situation of a vehicle moving through rainy days instead of being stationary, making the obtained data more realistic and improving the effectiveness of the test data.

[0021] 2. A waterproof performance testing workshop for automobile modification can adjust the angle of the nozzle by designing an angle adjustment device, so that the nozzle can spray water at different angles, thereby simulating rainfall in different directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of part of the structure of the present invention Figure 1 ; Figure 3 It is a schematic structural diagram of the spray device of the present invention; Figure 4 Schematic diagram of part of the structure of the present invention Figure 2 ; Figure 5 for Figure 1 A schematic diagram of the structure at center A; Figure 6 for Figure 1 Enlarged schematic diagram of the structure at point B in the middle.

[0023] Description of reference numerals: 1. Base; 2. Workshop steel frame; 3. Limiting frame; 4. Slide; 5. Water pipe No. 1; 6. Hose No. 1; 7. Sprinkler No. 1; 8. Slide rail No. 1; 9. Rack No. 1; 10. Gear No. 1; 11. Rotating rod No. 1; 12. Connecting column; 13. Lifting lug; 14. Motor No. 1; 15. Eccentric rod; 16. Push-pull rod; 17. T-screw; 18. Nut; 19. Slide rail No. 2; 20. Rack No. 2; 21. L-shaped support leg 22. Support platform; 23. Gear No. 2; 24. Rotating rod No. 2; 25. Bracket; 26. Sink; 27. Drain pipe; 28. Perforation; 29. ​​Rack No. 3; 30. Guide rod; 31. Cross plate; 32. Motor No. 2; 33. Screw rod; 34. Lifting plate; 35. Electric telescopic rod; 36. Fixed bracket; 37. Water pipe No. 2; 38. Nozzle No. 2; 39. Hose No. 2; 40. Pump; 41. Water tank; 42. Hose No. 3. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0025] Example: A waterproof performance testing workshop for automobile modification, referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , including a base 1, the upper surface of the base 1 is fixedly connected to a workshop steel frame 2, the lower surface of the workshop steel frame 2 is fixedly connected to a limit frame 3, the interior of the limit frame 3 is slidably connected to a spray device, a spray device slide 4, a No. 1 water pipe 5, a No. 1 hose 6 and a No. 1 nozzle 7, the interior of the slide 4 is fixedly connected to the No. 1 water pipe 5, the interior of the No. 1 water pipe 5 is connected to the No. 1 hose 6, and the lower end of the No. 1 hose 6 is fixedly connected to the No. 1 nozzle 7.

[0026] The lower surface of the slide 4 is fixedly connected with an angle adjustment device, which includes a No. 1 slide rail 8, a No. 1 rack 9, a No. 1 gear 10 and a No. 1 rotating rod 11. The lower surface of the slide 4 is fixedly connected with a connecting column 12, and the lower end of the connecting column 12 is fixedly connected to the No. 1 slide rail 8. The inner wall of the No. 1 slide rail 8 is fitted with the No. 1 rack 9, and the side surface of the No. 1 rack 9 is meshed with the No. 1 gear 10. The inside of the No. 1 gear 10 is fixedly connected to the No. 1 rotating rod 11, and the side surface of the No. 1 nozzle 7 is fixedly connected to the No. 1 rotating rod 11. The lower surface of the slide 4 is fixedly connected with a lifting ear 13, and the two ends of the No. 1 rotating rod 11 are rotatably connected to the lifting ear 13.

[0027] A reciprocating device is installed on the workshop steel frame 2, which includes motor No. 1, eccentric rod 15 and push-pull rod 16. The upper surface of motor No. 14 is fixedly connected to the workshop steel frame 2, the output end of motor No. 14 is fixedly connected to the eccentric rod 15, the end of the eccentric rod 15 away from motor No. 1 is rotatably connected to the push-pull rod 16, and the end of the push-pull rod 16 away from the eccentric rod 15 is hinged to the slide 4.

[0028] Reference Figure 3 and Figure 5 The internal rotation of the No. 1 rack 9 is connected with a T-screw 17, and the side surface of the T-screw 17 is threadedly connected with a nut 18. The side surface of the T-screw 17 is threadedly connected to the connecting column 12. By threading the T-screw 17 with the connecting column 12, the T-screw 17 can push the No. 1 rack 9 to slide on the inner wall of the No. 1 slide rail 8 when it rotates. When the No. 1 slide rail 8 slides horizontally, it can drive the No. 1 gear 10 to rotate, and the No. 1 gear 10 drives the No. 1 rotating rod 11 to rotate, so that the No. 1 rotating rod 11 drives multiple No. 1 sprinkler heads 7 to rotate, thereby achieving the effect of adjusting the angle of the No. 1 sprinkler head 7, and by tightening the nut 18, the T-screw 17 will not loosen after it stops rotating, so that the angle of the No. 1 sprinkler head 7 remains fixed, thereby simulating rain tests at different angles and improving the accuracy of the test results.

[0029] Reference Figure 2 、 Figure 3 and Figure 6A water tank 26 is provided inside the base 1, and the interior of the water tank 26 is fixedly connected to the second slide rail 19, and the outer surface of the second slide rail 19 is slidably connected to the second rack 20. The interior of the No. 2 rack 20 is fixedly connected to the L-shaped support leg 21, and the upper end of the L-shaped support leg 21 is fixedly connected to the base 22. The base 22 has multiple through holes 28 inside. A drain pipe 27 is provided inside the base 1, and the drain pipe 27 is connected to the water tank 26. By setting a plurality of perforations 28, the water after the detection parts placed on the support platform 22 are sprayed falls into the water tank 26 below through the perforations 28 and is then discharged by the drain pipe 27 for easy drainage. The upper surface of the No. 2 rack 20 is meshed with the No. 2 gear 23, and the interior of the No. 2 gear 23 is fixedly connected to the No. 2 rotating rod 24. The two ends of the No. 2 rotating rod 24 are rotatably connected to the bracket 25, and the lower end of the bracket 25 is fixedly connected to the base 1. By meshing the No. 2 gear 23 with the No. 2 rack 20, the No. 2 gear 23 can drive the No. 2 rack 20 to translate on the No. 2 slide rail 19 when it rotates, thereby realizing the translation of the support platform 22, and then simulating the scene of the modified parts on the support platform 22 shuttling in the rain. The lower end of the slide 4 is fixedly connected to the No. 3 rack 29, and the lower surface of the No. 3 rack 29 is meshed with the No. 2 gear 23. By meshing the No. 2 gear 23 with the No. 2 gear 23, the No. 3 rack 29 drives the No. 2 gear 23 to rotate when the slide 4 reciprocates horizontally, so that the No. 2 gear 23 drives the No. 2 rack 20 to reciprocate horizontally, thereby realizing the staggered reciprocating motion of the spray device and the supporting platform 22, that is, the spray device moves forward, the supporting platform 22 moves backward, and the spray device moves backward, the supporting platform 22 moves forward, simulating the scene of a car shuttling in the rain and improving the accuracy of the detection results.

[0030] Reference Figure 1 、 Figure 3 and Figure 4The upper surface of the base 1 is fixedly connected with four guide rods 30 distributed in a rectangular array, the upper end of the guide rod 30 is fixedly connected with a horizontal plate 31, the upper surface of the horizontal plate 31 is fixedly connected with a No. 2 motor 32, the output end of the No. 2 motor 32 is fixedly connected with a screw rod 33, the side surface of the screw rod 33 is threadedly connected with a lifting plate 34, the interior of the lifting plate 34 is fixedly connected with a front and rear symmetrically distributed electric telescopic rod 35, the end of the electric telescopic rod 35 away from the lifting plate 34 is fixedly connected with a fixing frame 36, the interior of the fixing frame 36 is fixedly connected with a No. 2 water pipe 37, the interior of the No. 2 water pipe 37 is provided with a No. 2 nozzle 38, the side surface of the guide rod 30 is slidably connected to the lifting plate 34, and the No. 2 motor 32 is provided to drive the screw rod 33 to rotate, so as to realize the lifting and lowering of the lifting plate 34, and to utilize The extension and retraction of the electric telescopic rod 35 drives the movement of the No. 2 water pipe 37 and the No. 2 nozzle 38, thereby realizing the adjustment of the height and distance of the side spraying of the inspection part. The interior of the No. 1 hose 6 is connected with the No. 2 hose 39, and the upper end of the No. 2 hose 39 is fixedly connected with the No. 3 hose 42, and the lower end of the No. 3 hose 42 is connected with the No. 1 water pipe 5. The upper end of the No. 3 hose 42 is fixedly connected with the pump 40, and the input end of the pump 40 is fixedly connected with the water tank 41. The lower surfaces of the pump 40 and the water tank 41 are fixedly connected to the workshop steel frame 2. By setting the pump 40 and the water tank 41, it is convenient to use the pump 40 to pump the water in the water tank 41 into the No. 1 water pipe 5 and the No. 2 water pipe 37 respectively, and then spray it from the top and side of the inspection part by the No. 1 nozzle 7 and the No. 2 nozzle 38, thereby simulating a multi-directional rain scene.

[0031] The implementation principle of the embodiment of the present application is as follows: when in use, the workpiece to be inspected is placed and fixed on the base 22, the pump 40 is started, the water in the water tank 41 passes through the No. 3 hose 42, and is dispersed by the No. 3 hose 42 to the No. 1 water pipe 5 and the No. 2 hose 39, and then sprayed from the top and the side through the No. 1 nozzle 7 and the No. 2 nozzle 38 respectively, to realize the waterproof performance test of the inspection piece in a static state, and then the No. 1 motor 14 is started, the No. 1 motor 14 drives the eccentric rod 15 to rotate, and the eccentric rod 15 drives the push-pull rod 16 to push and pull the slide 4 back and forth, and slides back and forth along the direction of the limit frame 3, simulating the drift of rainwater in windy weather, and at the same time drives the No. 3 rack 29 to move back and forth, and the No. 3 rack 29 drives the No. 2 gear 23 to rotate back and forth, thereby realizing the reverse reciprocating motion of the No. 2 rack 20 relative to the No. 3 rack 29, and the No. 2 rack 20 drives the L-shaped support leg 21 and the inspection piece on the base 22 to do reverse reciprocating relative to the spraying device. The movement can simulate the situation of vehicles shuttling in the rain, thereby improving the accuracy of detection, and the angle of rain spraying can be manually adjusted. Just loosen the nut 18 first and turn the T-screw 17. The T-screw 17 pushes the No. 1 rack 9 to slide in the No. 1 slide rail 8, and the No. 1 rack 9 drives the No. 1 gear 10 to rotate. The No. 1 gear 10 drives the No. 1 sprinkler 7 on the No. 1 rotating rod 11 to rotate and adjust the angle, and then tighten the nut 18 to prevent the T-screw 17 from loosening. When the height of the side spray needs to be adjusted, start the cross plate 31 to drive the cross plate 31 to rotate in the lifting plate 34, and use the principle of threaded connection to drive the lifting plate 34 to rise or fall, thereby realizing the adjustment of the height of the No. 2 sprinkler 38, and the distance between the No. 2 sprinkler 38 and the detection workpiece can be adjusted by starting the electric telescopic rod 35. The closer the water pressure, the greater the water pressure, thereby realizing detection under different water pressure conditions, further improving the accuracy of detection.

[0032] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A waterproof performance testing workshop for automobile modification, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a workshop steel frame (2), the lower surface of the workshop steel frame (2) is fixedly connected to a limiting frame (3), the interior of the limiting frame (3) is slidably connected to a spray device, the spray device slide (4), a No. 1 water pipe (5), a No. 1 hose (6) and a No. 1 nozzle (7), the interior of the slide (4) is fixedly connected to the No. 1 water pipe (5), the interior of the No. 1 water pipe (5) is connected to the No. 1 hose (6), and the lower end of the No. 1 hose (6) is fixedly connected to the No. 1 nozzle (7); The lower surface of the slide (4) is fixedly connected to an angle adjustment device, and the angle adjustment device includes a No. 1 slide rail (8), a No. 1 rack (9), a No. 1 gear (10) and a No. 1 rotating rod (11). The lower surface of the slide (4) is fixedly connected to a connecting column (12), and the lower end of the connecting column (12) is fixedly connected to the No. 1 slide rail (8). The inner wall of the No. 1 slide rail (8) is fitted with the No. 1 rack (9). The side surface of the No. 1 rack (9) is meshed with the No. 1 gear (10). The inside of the No. 1 gear (10) is fixedly connected to the No. 1 rotating rod (11). The side surface of the No. 1 nozzle (7) is fixedly connected to the No. 1 rotating rod (11). The lower surface of the slide (4) is fixedly connected to a lifting ear (13), and both ends of the No. 1 rotating rod (11) are rotatably connected to the lifting ear (13). A reciprocating device is installed on the workshop steel frame (2), and the reciprocating device includes a No. 1 motor (14), an eccentric rod (15) and a push-pull rod (16). The upper surface of the No. 1 motor (14) is fixedly connected to the workshop steel frame (2), the output end of the No. 1 motor (14) is fixedly connected to the eccentric rod (15), the end of the eccentric rod (15) away from the No. 1 motor (14) is rotatably connected to the push-pull rod (16), and the end of the push-pull rod (16) away from the eccentric rod (15) is hinged to the slide (4).

2. The waterproof performance testing workshop for automobile modification according to claim 1, characterized in that: The first rack (9) is internally rotatably connected to a T-shaped screw (17), the side surface of the T-shaped screw (17) is threadedly connected to a nut (18), and the side surface of the T-shaped screw (17) is threadedly connected to the connecting column (12).

3. The waterproof performance testing workshop for automobile modification according to claim 1, characterized in that: A water trough (26) is provided inside the base (1), a second slide rail (19) is fixedly connected inside the water trough (26), a second rack (20) is slidably connected to the outer surface of the second slide rail (19), an L-shaped support leg (21) is fixedly connected inside the second rack (20), the upper end of the L-shaped support leg (21) is fixedly connected to a support platform (22), a plurality of through holes (28) are provided inside the support platform (22), a drain pipe (27) is provided inside the base (1), and the drain pipe (27) is connected to the water trough (26).

4. The waterproof performance testing workshop for automobile modification according to claim 3, characterized in that: The upper surface of the No. 2 rack (20) is meshedly connected with the No. 2 gear (23), the interior of the No. 2 gear (23) is fixedly connected with the No. 2 rotating rod (24), the two ends of the No. 2 rotating rod (24) are rotatably connected with the bracket (25), and the lower end of the bracket (25) is fixedly connected to the base (1).

5. The waterproof performance testing workshop for automobile modification according to claim 1, characterized in that: A third rack (29) is fixedly connected to the lower end of the slide (4), and the lower surface of the third rack (29) is meshed with the second gear (23).

6. The waterproof performance testing workshop for automobile modification according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to four guide rods (30) distributed in a rectangular array, the upper ends of the guide rods (30) are fixedly connected to a transverse plate (31), the upper surface of the transverse plate (31) is fixedly connected to a No. 2 motor (32), the output end of the No. 2 motor (32) is fixedly connected to a screw rod (33), the side surface of the screw rod (33) is threadedly connected to a lifting plate (34), the interior of the lifting plate (34) is fixedly connected to electric telescopic rods (35) symmetrically distributed in front and back, the end of the electric telescopic rod (35) away from the lifting plate (34) is fixedly connected to a fixing frame (36), the interior of the fixing frame (36) is fixedly connected to a No. 2 water pipe (37), the interior of the No. 2 water pipe (37) is provided with a No. 2 nozzle (38), and the side surface of the guide rod (30) is slidably connected to the lifting plate (34).

7. The waterproof performance testing workshop for automobile modification according to claim 6, characterized in that: The interior of the No. 1 hose (6) is connected to the No. 2 hose (39), the upper end of the No. 2 hose (39) is fixedly connected to the No. 3 hose (42), the lower end of the No. 3 hose (42) is connected to the No. 1 water pipe (5), the upper end of the No. 3 hose (42) is fixedly connected to the pump (40), the input end of the pump (40) is fixedly connected to the water tank (41), and the lower surfaces of the pump (40) and the water tank (41) are fixedly connected to the workshop steel frame (2).

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