A transformer waterproof detection device

By designing a transformer waterproof detection device including a spray chamber, a lifting mechanism and a spray mechanism, the problem of general detection effect and low degree of freedom in the prior art is solved, and the use of transformers is achieved in all aspects and simulated in actual weather, thereby improving the detection effect and stability.

CN118837036BActive Publication Date: 2025-03-04QINGDAO YIBO TECH CO LTD
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Patent Information

Application Number
CN202411319848.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-23
Publication Date
2025-03-04
Estimated Expiration
2044-09-23

AI Technical Summary

Technical Problem

The existing transformer waterproof detection device has average detection effect. There are many blind spots when spraying, so it is impossible to spray the transformer in all directions, and the degree of freedom is low, so it cannot simulate the use of the actual weather.

Method used

A transformer waterproof detection device including a spray chamber, a lifting mechanism and a spray mechanism is designed. Lifting chambers and slide rods are provided on both sides of the spray chamber. The lifting mechanism realizes the up and down and left and right movement of the moving mount through the linkage gear and the return spring; the spray mechanism simulates the raining effect in different directions through the swinging fan and the arc frame.

Benefits of technology

By improving the freedom and flexibility of spraying, the transformer can be sprayed in all directions, avoiding blind spots, and simulating the use of actual weather, thereby improving detection effect and stability.

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Abstract

The present invention discloses a transformer waterproofness detection device, which belongs to the field of waterproof detection technology. The lifting mechanism includes a fixed frame installed at the bottom of the spray bin and a moving frame slidably arranged between the slide bars. The middle of the first crankshaft and the second crankshaft is provided with mutually meshing linkage gears, and a linkage plate is also movably arranged between the first crankshaft and the second crankshaft; a moving mounting seat is slidably arranged on the fixed mounting seat, and a device to be tested is installed on the moving mounting seat; an arc frame is slidably arranged in the swing groove, and multiple groups of spray racks are connected between the arc frames, and multiple groups of upper nozzles are arranged at intervals on the spray rack. The present invention can drive the moving frame to reciprocate up and down along the slide bar through the first crankshaft and the second crankshaft, and the special-shaped gear will intermittently mesh with the tooth plate at the bottom of the moving mounting seat, so that the moving mounting seat slides along the fixed mounting seat. The design is ingenious and effective, and can drive the device to be tested to move up and down and slide left and right, thereby improving the spraying effect and avoiding dead angles.
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Description

Technical Field

[0001] The invention relates to the technical field of waterproof detection, in particular to a transformer waterproof detection device. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The components of the transformer include the body, transformer oil, oil tank and cooling device, voltage regulating device, protective device and outlet bushing. According to the use scenario, it can be divided into indoor and outdoor. When installing a transformer outdoors, the working environment varies and various aspects of the transformer need to be tested. When used outdoors, the environmental factors vary greatly and must have good heat dissipation performance, high temperature resistance, cold resistance, and UV resistance. Considering outdoor construction and installation, it is generally required to have overload and short-circuit protection. Waterproof transformers have been widely used in outdoor lighting, urban lighting projects, mining areas, mines, ship equipment, electronic bathroom equipment, industrial atomizing humidifiers, medical equipment, precision instruments and other industries.

[0003] The patent application with publication number CN116337340A discloses a transformer waterproofness detection device, including a frame for placing a transformer, wherein a first installation cavity and a second installation cavity are provided in the frame, and water is allowed to flow back into the water storage cavity through a through hole, which helps to reduce water resource waste, and can prevent water from flowing to the ground and causing safety hazards to the operator, thereby helping to ensure the personal safety of the operator. The first driven gear is driven to rotate reciprocatingly through the intermittent connection between the first driven gear and the first incomplete gear and the second incomplete gear, and the first driven gear drives the driving gear to rotate through the first rotating shaft, and the driving gear drives the second rotating shaft to rotate through the second driven gear, so that the first spray part and the second spray part can rotate reciprocatingly to spray the front and rear ends of the transformer, thereby helping to increase the spraying range of the first spray part and the second spray part, and helping to improve the detection effect of the transformer waterproofness.

[0004] However, the detection effect of the transformer waterproof detection device disclosed above is average, there are many blind spots when spraying, and the transformer cannot be sprayed in all directions. In addition, the degree of freedom is average, and the transformer cannot be vibrated and displaced, and the spraying angle cannot be adjusted back and forth to simulate the use in actual weather. Summary of the invention

[0005] The purpose of the present invention is to provide a transformer waterproofness detection device to solve the problems that the existing transformer waterproofness detection device has a general detection effect, has many blind spots when spraying, and cannot spray the transformer in all directions. In addition, the degree of freedom is general, and the transformer cannot be vibrated and displaced, and the spraying angle cannot be reciprocated to simulate the use conditions in actual weather.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a transformer waterproofness detection device, comprising a spray bin, a lifting mechanism and a spray mechanism, wherein lifting bins are arranged on both sides of the spray bin, and a slide bar is arranged in the lifting bin; the lifting mechanism comprises a fixed frame installed at the bottom of the spray bin and a moving frame slidably arranged between the slide bars, a first crankshaft is movably arranged in the middle of the fixed frame, a second crankshaft is movably arranged in the middle of the moving frame, and mutually meshing linkage gears are installed in the middle of the first crankshaft and the second crankshaft, and a linkage plate is also movably arranged between the first crankshaft and the second crankshaft; a plurality of groups of ejectors are fixedly arranged on the top of the moving frame, a fixed mounting seat is arranged on the top of the ejector, a moving mounting seat is slidably arranged on the fixed mounting seat, and a device to be tested is installed on the moving mounting seat; the spray mechanism comprises a top cover arranged on the top of the spray bin, symmetrical swing grooves are opened on both sides of the top cover, an arc frame is slidably arranged in the swing groove, a plurality of groups of spray frames are connected between the arc frames, and a plurality of groups of upper nozzles are arranged at intervals on the spray frames.

[0007] As a further solution of the present invention: sliding seats cooperating with the sliding rods are arranged on both sides of the moving frame, a plurality of groups of lower nozzles inclined upward are arranged on the top of the moving frame, a hose 1 is also connected to the moving frame, and a first water pump is also arranged at the bottom of the hose 1.

[0008] As a further solution of the present invention: a water storage tank is further provided at the bottom of the spray tank, and a control panel is further provided on the outer wall of the spray tank.

[0009] As a further solution of the present invention: symmetrical vertical plates are arranged on both sides of the fixed mounting seat, multiple groups of return springs are connected to both sides of the movable mounting seat, and the movable mounting seat is connected to the vertical plates through the return springs; symmetrical sliding grooves are opened on the top of the fixed mounting seat, and a sliding block cooperating with the movable mounting seat is arranged on the bottom of the movable mounting seat.

[0010] As a further solution of the present invention: a lifting motor is installed outside the spray chamber, and the output end of the lifting motor is connected to the first crankshaft; a gear plate is fixedly provided at the bottom of the motion mounting seat, and a special-shaped gear matching with it is also installed on the second crankshaft.

[0011] As a further solution of the present invention: a swing fan is movably installed on one side of the top cover, convex plates are provided on both sides of the arc frame, top blocks matching with the swing fan are provided on both sides of the swing fan, a swing motor is also installed on the outer wall of the spray bin, the output end of the swing motor is connected to a second swing arm, and a first swing arm is also movably installed in the middle of the swing fan, and the swing motor is movably connected to the first swing arm through the second swing arm.

[0012] As a further solution of the present invention: a second hose is connected to the outer side of one group of the arc-shaped frames, the other end of the second hose is connected to the water storage tank, and a second water pump is also installed on the second hose.

[0013] As a further solution of the present invention: a door panel is movably provided on the front side of the spray chamber, and an observation window is also provided on the door panel.

[0014] As a further solution of the present invention: the linkage plate is also provided with bearings that cooperate with the first crankshaft and the second crankshaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can drive the moving frame to reciprocate up and down along the slide bar through the cooperation of the first crankshaft and the second crankshaft. When the second crankshaft rotates, the special-shaped gear will intermittently mesh with the tooth plate at the bottom of the moving mounting seat, so that the moving mounting seat slides along the fixed mounting seat. When the special-shaped gear is separated from the tooth plate, the moving mounting seat returns to its original position under the action of the reset spring. This design is ingenious and effective, and can drive the device to be tested to move up and down and slide left and right, thereby improving the spraying effect and avoiding dead angles, which greatly improves the stability and practicality of the transformer waterproof detection device.

[0017] 2. The present invention can drive the swing fan to swing back and forth relative to the side of the top cover through the cooperation of the first swing arm and the second swing arm. When the swing fan swings to the left, the top block on the right side will drive the convex plate on the right side of the arc frame and slide to the left along the swing groove. When the swing fan swings to the right, the top block on the left side will drive the convex plate on the left side of the arc frame and slide to the right along the swing groove, thereby simulating the rain effect in different directions under natural conditions. This design further improves the degree of freedom of the transformer waterproof detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 It is a three-dimensional structural diagram of the spray bin in the present invention;

[0021] Figure 3 It is the three-dimensional structure of the lifting mechanism in the present invention Figure 1 ;

[0022] Figure 4 It is the three-dimensional structure of the lifting mechanism in the present invention Figure 2 ;

[0023] Figure 5It is a three-dimensional structural diagram of the motion mounting seat in the present invention;

[0024] Figure 6 It is a three-dimensional structural diagram of the spray mechanism in the present invention;

[0025] Figure 7 It is a three-dimensional structural diagram of the spray rack in the present invention.

[0026] Description of reference numerals:

[0027] 1. Spraying chamber; 101. Water storage chamber; 102. Control panel; 103. Door panel; 104. Observation window; 105. Lifting chamber; 106. Slide rod; 2. Lifting mechanism; 201. Fixed frame; 202. Moving frame; 203. Slide seat; 204. Lower nozzle; 205. First water pump; 206. Hose 1; 207. First crankshaft; 208. Second crankshaft; 209. Linkage gear; 210. Linkage plate; 211. Lifting motor; 212. Push rod; 213. Fixed mounting seat; 214. Vertical plate; 215, motion mounting seat; 216, slide groove; 217, slider; 218, return spring; 219, tooth plate; 220, special-shaped gear; 221, equipment to be tested; 3, spray mechanism; 301, top cover; 302, swing groove; 303, arc frame; 304, spray frame; 305, upper nozzle; 306, convex plate; 307, swing fan; 308, top block; 309, first swing arm; 310, second swing arm; 311, swing motor; 312, hose 2; 313, second water pump. DETAILED DESCRIPTION

[0028] The following will be combined with the attached Figures 1 to 7 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present invention provides a transformer waterproof detection device through improvement. Figure 1-Figure 7As shown, it includes a spray bin 1, a lifting mechanism 2 and a spray mechanism 3. Lifting bins 105 are arranged on both sides of the spray bin 1, and slide bars 106 are arranged in the lifting bins 105; the lifting mechanism 2 includes a fixed frame 201 installed at the bottom of the spray bin 1 and a moving frame 202 slidably arranged between the slide bars 106, a first crankshaft 207 is movably arranged in the middle of the fixed frame 201, a second crankshaft 208 is movably arranged in the middle of the moving frame 202, and mutually meshing linkage gears 209 are installed in the middle of the first crankshaft 207 and the second crankshaft 208, and a gear 209 is movably arranged between the first crankshaft 207 and the second crankshaft 208. A linkage plate 210 is provided; a plurality of groups of top rods 212 are fixedly provided on the top of the moving frame 202, a fixed mounting seat 213 is provided on the top of the top rod 212, a moving mounting seat 215 is slidably provided on the fixed mounting seat 213, and a device to be tested 221 is installed on the moving mounting seat 215; the spray mechanism 3 includes a top cover 301 arranged on the top of the spray bin 1, symmetrical swing grooves 302 are opened on both sides of the top cover 301, an arc frame 303 is slidably provided in the swing groove 302, a plurality of groups of spray frames 304 are connected between the arc frames 303, and a plurality of groups of upper nozzles 305 are arranged at intervals on the spray frames 304.

[0030] In this embodiment: the transformer waterproofness detection device is mainly divided into three parts: a spray chamber 1, a lifting mechanism 2 and a spray mechanism 3. When the device is in use, the door panel 103 is first opened, and then the device to be tested 221 is installed on the motion mounting seat 215, and then the lifting motor 211 and the swing motor 311 are started. When the lifting motor 211 drives the first crankshaft 207 to rotate, since the upper and lower sets of linkage gears 209 are meshed with each other, the second crankshaft 208 will also rotate relative to the motion frame 202, thereby further driving the motion frame 202 to reciprocate up and down relative to the slide bar 106. When the second crankshaft 208 rotates, the special-shaped gear 220 will intermittently mesh with the tooth plate 219 at the bottom of the motion mounting seat 215, so that the motion mounting seat 215 slides along the fixed mounting seat 213. When the special-shaped gear 220 is separated from the tooth plate 219 , the moving mounting seat 215 is restored to its original position under the action of the multiple sets of return springs 218 , so that the device under test 221 can reciprocate up and down and slide back and forth along the fixed mounting seat 213 .

[0031] The swing motor 311 can drive the swing fan 307 to swing back and forth. When the swing fan 307 swings to the left, the top block 308 on the right side drives the convex plate 306 on the right side of the arc frame 303 to slide to the left along the swing groove 302. When the swing fan 307 swings to the right, the top block 308 on the left side drives the convex plate 306 on the left side of the arc frame 303 to slide to the right along the swing groove 302, thereby simulating the spraying effects in different directions.

[0032] See attached Figure 2 -Attached Figure 3Slide seats 203 cooperating with the slide rod 106 are arranged on both sides of the moving frame 202, a plurality of groups of lower nozzles 204 inclined upward are arranged on the top of the moving frame 202, a hose 206 is also connected to the moving frame 202, and a first water pump 205 is also arranged at the bottom of the hose 206.

[0033] In this embodiment, under the drive of the second crankshaft 208 and the linkage gear 209 , in order to ensure that the moving frame 202 reciprocates up and down relative to the slide rod 106 , a slide seat 203 structure is designed.

[0034] See attached Figure 1 -Attached Figure 2 A water storage tank 101 is also provided at the bottom of the spray tank 1, and a control panel 102 is also provided on the outer wall of the spray tank 1.

[0035] In this embodiment, when the first crankshaft 207 rotates, the linkage gear 209 in the middle thereof also rotates relative to the fixed frame 201. Since the fixed frame 201 is installed at the bottom of the spray chamber 1, in order to avoid interference between the linkage gear 209 and the first crankshaft 207 caused by the bottom thereof, a water storage chamber 101 is designed.

[0036] See attached Figure 3 -Attached Figure 5 Symmetrical vertical plates 214 are arranged on both sides of the fixed mounting seat 213, and multiple groups of return springs 218 are connected to both sides of the movable mounting seat 215. The movable mounting seat 215 is connected to the vertical plates 214 through the return springs 218; symmetrical sliding grooves 216 are opened on the top of the fixed mounting seat 213, and a sliding block 217 cooperating therewith is arranged at the bottom of the movable mounting seat 215.

[0037] In this embodiment, in order to ensure that the moving mounting seat 215 is slidably arranged on the top of the fixed mounting seat 213 and further improve the stability during movement, a sliding groove 216 and a slider 217 are designed. When the moving mounting seat 215 moves, in order to automatically reset it, multiple groups of reset springs 218 are designed.

[0038] See attached Figure 4 -Attached Figure 5 A lifting motor 211 is installed outside the spray chamber 1, and the output end of the lifting motor 211 is connected to the first crankshaft 207; a toothed plate 219 is fixedly provided at the bottom of the motion mounting seat 215, and a special-shaped gear 220 matching with it is also installed on the second crankshaft 208.

[0039] In this embodiment: when the lifting motor 211 drives the first crankshaft 207 to rotate, since the upper and lower sets of linkage gears 209 are meshed with each other, the second crankshaft 208 will also rotate relative to the motion frame 202, thereby further driving the motion frame 202 to reciprocate up and down relative to the slide bar 106. When the second crankshaft 208 rotates, the special-shaped gear 220 will intermittently mesh with the tooth plate 219 at the bottom of the motion mounting seat 215, so that the motion mounting seat 215 slides along the fixed mounting seat 213. When the special-shaped gear 220 is separated from the tooth plate 219, the motion mounting seat 215 returns to its original position under the action of the multiple sets of return springs 218, thereby improving the spraying effect and avoiding the generation of dead angles.

[0040] See attached Figure 1 and attached Figure 6 -Attached Figure 7 A swing fan 307 is movably installed on one side of the top cover 301, convex plates 306 are provided on both sides of the arc frame 303, and top blocks 308 cooperating therewith are provided on both sides of the swing fan 307. A swing motor 311 is also installed on the outer wall of the spray chamber 1, and the output end of the swing motor 311 is connected to the second swing arm 310. A first swing arm 309 is also movably installed in the middle of the swing fan 307, and the swing motor 311 is movably connected to the first swing arm 309 through the second swing arm 310.

[0041] In this embodiment: In order to simulate a real rainy environment, a moving upper nozzle 305 structure is designed. When the swing motor 311 drives the first swing arm 309 to move through the second swing arm 310, the swing fan 307 will swing back and forth due to the active connection between the first swing arm 309 and the middle part of the swing fan 307. When the swing fan 307 swings to the left, the top block 308 on the right side will drive the convex plate 306 on the right side of the arc frame 303 and make it slide to the left along the swing groove 302. When the swing fan 307 swings to the right, the top block 308 on the left side will drive the convex plate 306 on the left side of the arc frame 303 and make it slide to the right along the swing groove 302, thereby simulating the rain effect in different directions under natural conditions.

[0042] See attached Figure 1 -Attached Figure 2 A second hose 312 is connected to the outer side of one of the arc frames 303 , and the other end of the second hose 312 is connected to the water storage tank 101 . A second water pump 313 is also installed on the second hose 312 .

[0043] In this embodiment, in order to return the circulating spray water to the spray rack 304 for spraying again, a second hose 312 structure is designed.

[0044] See attached Figure 1 A door panel 103 is movably provided on the front side of the spray chamber 1 , and an observation window 104 is provided on the door panel 103 .

[0045] In this embodiment, a door panel 103 is provided to facilitate installation of the device to be tested 221 on the motion mounting seat 215. An observation window 104 is provided to facilitate observation of the internal working state of the spray chamber 1.

[0046] See attached Figure 3 -Attached Figure 4 The linkage plate 210 is also provided with bearings that cooperate with the first crankshaft 207 and the second crankshaft 208.

[0047] In this embodiment, when the first crankshaft 207 drives the second crankshaft 208 and the moving frame 202 to move, a linkage plate 210 is designed to ensure that the upper and lower sets of linkage gears 209 remain in meshing state. In order to ensure that the linkage plate 210 is movably connected to the first crankshaft 207 and the second crankshaft 208, a bearing structure is designed.

[0048] Working principle of the present invention: when the device is used, the door panel 103 is first opened, and then the device to be tested 221 is installed on the motion mounting seat 215, and then the lifting motor 211 and the swing motor 311 are started. When the lifting motor 211 drives the first crankshaft 207 to rotate, since the upper and lower sets of linkage gears 209 are meshed with each other, the second crankshaft 208 will also rotate relative to the motion frame 202, thereby further driving the motion frame 202 to reciprocate up and down relative to the slide bar 106. When the second crankshaft 208 rotates, the special-shaped gear 220 will intermittently mesh with the tooth plate 219 at the bottom of the motion mounting seat 215, so that the motion mounting seat 215 slides along the fixed mounting seat 213. When the special-shaped gear 220 is separated from the tooth plate 219, the motion mounting seat 215 returns to its original position under the action of the multiple sets of return springs 218, so that the device to be tested 221 can reciprocate up and down and slide reciprocatingly along the fixed mounting seat 213. The swing motor 311 can drive the swing fan 307 to swing back and forth. When the swing fan 307 swings to the left, the top block 308 on the right side drives the convex plate 306 on the right side of the arc frame 303 to slide to the left along the swing groove 302. When the swing fan 307 swings to the right, the top block 308 on the left side drives the convex plate 306 on the left side of the arc frame 303 to slide to the right along the swing groove 302, thereby simulating the spraying effects in different directions.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A transformer waterproofness detection device, comprising a spray chamber (1), a lifting mechanism (2) and a spray mechanism (3), characterized in that: Lifting bins (105) are provided on both sides of the spray bin (1), and sliding rods (106) are provided inside the lifting bins (105); The lifting mechanism (2) comprises a fixed frame (201) installed at the bottom of the spray chamber (1) and a moving frame (202) slidably arranged between the sliding rods (106); a first crankshaft (207) is movably arranged in the middle of the fixed frame (201); a second crankshaft (208) is movably arranged in the middle of the moving frame (202); mutually meshing linkage gears (209) are installed in the middle of the first crankshaft (207) and the second crankshaft (208); a linkage plate (210) is also movably arranged between the first crankshaft (207) and the second crankshaft (208); a plurality of groups of push rods (212) are fixedly arranged at the top of the moving frame (202); a fixed mounting seat (213) is arranged at the top of the push rods (212); a moving mounting seat (215) is slidably arranged on the fixed mounting seat (213); and a device to be tested (221) is installed on the moving mounting seat (215); The spray mechanism (3) comprises a top cover (301) arranged on the top of the spray bin (1), symmetrical swing grooves (302) are provided on both sides of the top cover (301), arc frames (303) are slidably arranged in the swing grooves (302), multiple groups of spray frames (304) are connected between the arc frames (303), and multiple groups of upper spray heads (305) are arranged at intervals on the spray frames (304); Slide seats (203) cooperating with the slide rod (106) are arranged on both sides of the movement frame (202); a plurality of groups of lower nozzles (204) tilted upward are arranged on the top of the movement frame (202); a hose (206) is also connected to the movement frame (202); a first water pump (205) is also arranged at the bottom of the hose (206); symmetrical vertical plates (214) are arranged on both sides of the fixed mounting seat (213); a plurality of groups of return springs (218) are connected to both sides of the movement mounting seat (215); the movement mounting seat (215) is connected to the vertical plates (214) via the return springs (218); a symmetrical slide groove (216) is provided on the top of the fixed mounting seat (213); a slider (217) cooperating with the slide groove (216) is provided at the bottom of the movement mounting seat (215); a lifting motor is installed on the outside of the spray chamber (1); (211), the output end of the lifting motor (211) is connected to the first crankshaft (207); a tooth plate (219) is fixedly provided at the bottom of the motion mounting seat (215), and a special-shaped gear (220) matching therewith is also installed on the second crankshaft (208); a swing fan (307) is movably installed on one side of the top cover (301), convex plates (306) are provided on both sides of the arc frame (303), and top blocks (308) matching therewith are provided on both sides of the swing fan (307), and a swing motor (311) is also installed on the outer wall of the spray chamber (1), the output end of the swing motor (311) is connected to the second swing arm (310), and a first swing arm (309) is also movably installed in the middle of the swing fan (307), and the swing motor (311) is movably connected to the first swing arm (309) through the second swing arm (310).

2. A transformer waterproofness detection device according to claim 1, characterized in that: A water storage tank (101) is also provided at the bottom of the spray tank (1), and a control panel (102) is also provided on the outer wall of the spray tank (1).

3. A transformer waterproofness detection device according to claim 2, characterized in that: A second hose (312) is connected to the outer side of one group of the arc-shaped frames (303), the other end of the second hose (312) is in communication with the water storage tank (101), and a second water pump (313) is also installed on the second hose (312).

4. A transformer waterproofness detection device according to any one of claims 1 to 3, characterized in that: A door panel (103) is movably provided on the front side of the spray chamber (1), and an observation window (104) is also provided on the door panel (103).

5. A transformer waterproofness detection device according to any one of claims 1 to 3, characterized in that: The linkage plate (210) is also provided with a bearing that cooperates with the first crankshaft (207) and the second crankshaft (208).

Citation Information

Patent Citations

  • Transformer waterproofness detection device

    CN116337340A

  • Vehicle lamp waterproof test device and method

    CN110793725A

  • Waterproof test bench for testing waterproof grade

    CN114659711A