A test device for the sealing performance of a distribution box

Abstract

This utility model relates to the field of distribution box manufacturing technology, and in particular to a distribution box sealing performance testing device, including a base, on which a sealing performance testing mechanism is set for the distribution box sealing test. The sealing performance testing mechanism includes: a spraying assembly, including a water tank fixed to the top of the base, a water supply pipe fixed above the rear end of the inner wall of the water tank, and several nozzles installed on the water supply pipe; and an adjusting assembly, including a stand fixed to the rear end of the top of the water tank, a lead screw rotatably installed inside the stand, a sleeve threaded on the outside of the lead screw, a first reduction motor installed on the top of the stand for driving the lead screw to rotate, and a flipping component set on the sleeve for adjusting the angle of the distribution box; by adjusting the assembly, the distribution box is immersed in the water tank and rotated, and in conjunction with the spraying assembly, multi-angle water spray testing of the sealing performance is achieved, simulating real working conditions and completing automated multi-angle testing to comprehensively evaluate the waterproof performance of the distribution box.

Description

Technical Field

[0001] This utility model relates to the field of distribution box manufacturing technology, specifically to a distribution box sealing performance testing device. Background Technology

[0002] Currently, most common distribution boxes are used outdoors, and therefore often operate in various climatic environments, including rain and snow. Since distribution boxes contain a large number of electrical components and cables, if water enters the distribution box during operation, it will cause short circuits in the internal cable lines, damage the distribution box equipment, and cause a series of safety problems. Therefore, a qualified distribution box should have good sealing performance to prevent water from entering the distribution box and damaging the internal components in rain and snow.

[0003] According to CN116659764B, a device and method for testing the sealing performance of a distribution box are disclosed. This technology discloses "a device and method for testing the sealing performance of a distribution box, including a test device body and a base plate. Through the arrangement of the distribution box body, cloth body, and other structures, a cylinder is activated, which drives the distribution box body to move downward. When the distribution box body descends, the cloth body extends and wraps around the surface of the distribution box body. The distribution box body drives the linkage plate to descend, and through the short cross plate, the first rack plate descends and drives the gear to rotate. The gear drives the second rack plate to move into the shell and pushes the first strong magnet to move and fit with the second strong magnet, so that the cloth body tightly wraps the distribution box body. The color change of the cloth body can be used to specifically find the location of the sealing problem." This technology has the technical effect of "solving the problems of existing technologies that cannot detect the specific leakage location, cannot completely record the experimental results, and have a single detection effect."

[0004] Traditional testing methods typically employ single-direction spraying or immersion tests, which are insufficient to assess the actual sealing performance of distribution boxes under different tilt angles and complex water flow conditions. This leads to discrepancies between test results and actual usage environments, failing to accurately reflect the potential risks of water leakage from various directions that distribution boxes may face in outdoor rain and snow, thus affecting the accurate assessment of the waterproof performance of distribution boxes. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a power distribution box sealing performance testing device. By adjusting the components, the power distribution box is immersed in a water tank and rotated. In conjunction with the spray components, water is sprayed from multiple angles to test the sealing performance, simulating real working conditions and completing automated multi-angle testing to comprehensively evaluate the waterproof performance of the power distribution box.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a distribution box sealing performance testing device, comprising a base, on which a sealing performance testing mechanism is mounted for conducting sealing tests on the distribution box, the sealing performance testing mechanism comprising:

[0007] The spray assembly includes a water tank fixed to the top of the base, a water supply pipe fixed above the rear end of the inner wall of the water tank, and several nozzles installed on the water supply pipe;

[0008] The adjustment assembly includes a stand fixed to the rear end of the top of the water tank, a lead screw rotatably mounted inside the stand, a sleeve threaded onto the outside of the lead screw, a first geared motor mounted on the top of the stand for driving the lead screw to rotate, and a flipping component provided on the sleeve for adjusting the angle of the distribution box.

[0009] A fixing component is mounted on the flip-up part and used to secure the distribution box.

[0010] Preferably, the flipping component includes a bracket fixed on the sleeve, with shaft brackets rotatably mounted on the inner walls of both ends of the bracket, a housing fixed on the outer wall of one end of the bracket, a driven bevel gear rotatably mounted inside the housing and fixed to one of the shaft brackets, a driving bevel gear rotatably mounted inside the housing and meshing with the driven bevel gear for transmission, a second reduction motor mounted on the outer wall of one end of the bracket, and a connecting shaft fixed between the output end of the second reduction motor and the driving bevel gear.

[0011] Preferably, the fixing component includes a frame fixed between two end brackets, with sliding plates slidably installed at both ends of the frame, a clamp fixed at the upper end of the sliding plate, and a rotating rod rotatably installed at the upper end of the frame. Both ends of the rotating rod are pivotally connected to connecting rods, and the other end of the connecting rod is pivotally connected to the sliding plate.

[0012] Preferably, one of the slide plates is connected to a threaded cylinder at the bottom, and a threaded sleeve is connected to the bottom of the frame. A threaded rod is rotatably mounted on the outer wall of the threaded cylinder, and the inner wall of the threaded rod is threadedly installed with the outer wall of the threaded sleeve.

[0013] Preferably, a water pump is installed at the top rear end of the base, and the outlet of the water pump is connected to the water supply pipe through a pipe. The inlet of the water pump is connected to a filter through a pipe. An inlet and outlet pipe is fixed at the bottom of the water tank. A tee pipe is fixed at the end of the inlet and outlet pipe, and the tee pipe is connected to the filter through a pipe. A connector is fixed at the rear end of the tee pipe.

[0014] Preferably, the adjustment assembly further includes a guide wheel that is rotatably mounted on the outer wall of the support and cooperates with the upright.

[0015] Beneficial effects

[0016] This invention provides a device for testing the sealing performance of a distribution box. Compared with the prior art, it has the following advantages:

[0017] 1. After the distribution box is fixed by the fixing component, the first geared motor drives the lead screw to rotate. The lead screw drives the flipping component to move downward through the sleeve. The flipping component drives the distribution box fixed on the fixing component into the water tank, and then sprays water onto the distribution box through the nozzle on the water supply pipe. In addition, the flipping component rotates the distribution box fixed on the fixing component, thereby comprehensively testing its sealing performance. This not only simulates the sealing test under real environment, but also realizes automated testing under multiple angles and working conditions.

[0018] 2. By filling the water tank with 20% of its total capacity, then pumping out the water and filtering it through a filter, the pumped water is sprayed out from the nozzle through the water pipe. The closed-loop water circulation design significantly reduces water consumption, and multiple tests can be completed with only a small amount of water.

[0019] 3. When the threaded sleeve extends or retracts, it causes one of the slide plates to slide. When the slide plate slides, it drives the rotating rod to rotate through the connecting rod. The rotating rod drives the other slide plate to slide in the opposite direction synchronously through another connecting rod. Thus, the slide plates on both sides drive the corresponding clamps to clamp and fix the distribution box. It has strong adaptability and can reliably fix distribution boxes of different sizes. It is also easy to operate and greatly improves the testing efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the front end of the spray assembly in this utility model;

[0022] Figure 3 This is a schematic diagram of the rear end of the spray assembly in this utility model;

[0023] Figure 4 This is a schematic diagram of the adjustment component in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the flipping component in this utility model;

[0025] Figure 6 This is a schematic diagram of the fixing component in this utility model.

[0026] In the diagram: 1. Base; 2. Sealing detection mechanism; 21. Spray assembly; 211. Water tank; 212. Water supply pipe; 213. Nozzle; 214. Water pump; 215. Filter; 216. Inlet and outlet pipes; 217. T-connector; 218. Connector; 22. Adjustment assembly; 221. Stand; 222. Lead screw; 223. Sleeve; 224. First geared motor; 225. Tilting component; 2251. Bracket; 2252. Shaft bracket; 2253. Housing; 2254. Driven bevel gear; 2255. Driven bevel gear; 2256. Second geared motor; 2257. Connecting shaft; 226. Guide wheel; 23. Fixing assembly; 231. Frame; 232. Slide plate; 233. Clamping plate; 234. Rotating rod; 235. Connecting rod; 236. Threaded cylinder; 237. Threaded sleeve; 238. Threaded rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 6 This utility model provides a technical solution: a distribution box sealing performance testing device, including a base 1, on which a sealing performance testing mechanism 2 is provided for the distribution box sealing performance test, the sealing performance testing mechanism 2 includes:

[0029] The spray assembly 21 includes a water tank 211 fixed to the top of the base 1, a water supply pipe 212 fixed above the rear end of the inner wall of the water tank 211, and a plurality of nozzles 213 installed on the water supply pipe 212.

[0030] The adjustment assembly 22 includes a stand 221 fixed to the rear end of the top of the water tank 211. A lead screw 222 is rotatably installed inside the stand 221. A sleeve 223 is threaded on the outside of the lead screw 222. A first reduction motor 224 is installed on the top of the stand 221 to drive the lead screw 222 to rotate. A flipping component 225 is provided on the sleeve 223 for adjusting the angle of the distribution box.

[0031] The fixing component 23 is disposed on the flipping component 225 and is used to fix the distribution box.

[0032] In this embodiment, after the distribution box is fixed by the fixing component 23, the first reduction motor 224 drives the lead screw 222 to rotate. The lead screw 222 drives the flipping component 225 to move downward through the sleeve 223. The flipping component 225 drives the distribution box fixed on the fixing component 23 into the water tank 211, and then sprays water onto the distribution box through the nozzle 213 on the water supply pipe 212. Furthermore, the flipping component 225 rotates the distribution box fixed on the fixing component 23, thereby comprehensively testing its sealing performance. This not only simulates the sealing test under real environment, but also realizes automated testing under multiple angles and working conditions.

[0033] Specifically, the flipping component 225 includes a bracket 2251 fixed on the sleeve 223. Shaft brackets 2252 are rotatably mounted on the inner walls of both ends of the bracket 2251. A housing 2253 is fixed to the outer wall of one end of the bracket 2251. A driven bevel gear 2254 is rotatably mounted inside the housing 2253 and fixed to one of the shaft brackets 2252. A driving bevel gear 2255 is rotatably mounted inside the housing 2253 and meshes with the driven bevel gear 2254 for transmission. A second reduction motor 2256 is mounted on the outer wall of one end of the bracket 2251, and a connecting shaft 2257 is fixed between the output end of the second reduction motor 2256 and the driving bevel gear 2255.

[0034] In this embodiment, the output end of the second reduction motor 2256 drives the connecting shaft 2257 to rotate the active bevel gear 2255. The active bevel gear 2255 drives the shaft frame 2252 to rotate through the driven bevel gear 2254. The shaft frame 2252 drives the distribution box fixed on the fixed component 23 to rotate. This not only improves the testing efficiency, but also allows for a more comprehensive evaluation of the sealing performance of the distribution box at various angles.

[0035] Specifically, the fixing component 23 includes a frame 231 fixed between the two end brackets 2252. Slide plates 232 are slidably installed at both ends of the frame 231. A clamping plate 233 is fixed at the upper end of the slide plate 232. A rotating rod 234 is rotatably installed at the upper end of the frame 231. Both ends of the rotating rod 234 are pivotally connected to connecting rods 235, and the other end of the connecting rod 235 is pivotally connected to the slide plate 232.

[0036] In this embodiment, when the threaded sleeve 237 extends or retracts, it causes one of the sliding plates 232 to slide. When the sliding plate 232 slides, it drives the rotating rod 234 to rotate through the connecting rod 235. The rotating rod 234 drives the other sliding plate 232 to slide in the opposite direction synchronously through another connecting rod 235. This allows the sliding plates 232 on both sides to drive the corresponding clamping plates 233 to clamp and fix the distribution box. It has strong adaptability and can reliably fix distribution boxes of different sizes. It is also easy to operate and greatly improves the testing efficiency.

[0037] Specifically, a threaded cylinder 236 is connected to the bottom of one of the slide plates 232, a threaded sleeve 237 is connected to the bottom of the frame 231, a threaded rod 238 is rotatably installed on the outer wall of the threaded cylinder 236, and the inner wall of the threaded rod 238 is threadedly installed with the outer wall of the threaded sleeve 237.

[0038] In this embodiment, rotating the threaded rod 238 can drive the threaded sleeve 237 to extend and retract along the inside of the threaded cylinder 236; simply rotating the threaded rod 238 is enough to complete the clamping or releasing action, greatly improving the ease of operation.

[0039] Specifically, a water pump 214 is installed at the top rear end of the base 1, and the outlet of the water pump 214 is connected to the water supply pipe 212 through a pipe. The inlet of the water pump 214 is connected to the filter 215 through a pipe. An inlet and outlet pipe 216 is fixed at the bottom of the water tank 211. A tee pipe 217 is fixed at the end of the inlet and outlet pipe 216, and the tee pipe 217 is connected to the filter 215 through a pipe. A connector 218 is fixed at the rear end of the tee pipe 217.

[0040] In this embodiment, water is injected into the water tank 211 to a total capacity of 20%, and then the water is pumped out of the water tank 211 by the water pump 214 and filtered by the filter 215, so that the pumped water is sprayed out from the nozzle 213 through the water supply pipe 212. The closed-loop water circulation design significantly reduces water consumption, and only a small amount of water needs to be injected to complete multiple tests.

[0041] Specifically, the adjustment assembly 22 also includes a guide wheel 226 that is rotatably mounted on the outer wall of the bracket 2251 and cooperates with the upright frame 221.

[0042] In this embodiment, the guide wheel 226 is mounted on the outer wall of the bracket 2251 by a rotatable connection, forming a rolling engagement with the upright frame 221. As an auxiliary guiding device, the guide wheel 226 can effectively share the lateral force borne by the sleeve 223 during the lifting process, and avoid wear of the lead screw 222 caused by off-center load. In addition, rolling friction greatly reduces the motion resistance compared with sliding friction, making the bracket 2251 drive the distribution box to lift more smoothly and steadily.

[0043] The working principle and usage process of this utility model are as follows: First, by rotating the threaded rod 238, the threaded sleeve 237 can be driven to extend and retract along the inside of the threaded cylinder 236. When the threaded sleeve 237 extends and retracts, it drives one of the sliding plates 232 to slide. When the sliding plate 232 slides, it drives the rotating rod 234 to rotate through the connecting rod 235. The rotating rod 234 drives the other sliding plate 232 to slide in the opposite direction synchronously through another connecting rod 235, so that the sliding plates 232 on both sides drive the corresponding clamping plates 233 to clamp and fix the distribution box.

[0044] Then, the first reduction motor 224 drives the lead screw 222 to rotate, and the lead screw 222 drives the flipping component 225 to move downward through the sleeve 223. The flipping component 225 drives the distribution box fixed on the fixed component 23 into the water tank 211.

[0045] Finally, the output end of the second reduction motor 2256 drives the connecting shaft 2257 to drive the active bevel gear 2255 to rotate. The active bevel gear 2255 drives the shaft frame 2252 to rotate through the driven bevel gear 2254. The shaft frame 2252 drives the distribution box fixed on the fixed component 23 to rotate.

[0046] Meanwhile, by injecting 20% ​​of the total capacity of water into the water tank 211, and then pumping the water out of the water tank 211 through the water pump 214, and filtering it through the filter 215, the pumped water is sprayed out from the nozzle 213 through the water supply pipe 212; thereby comprehensively testing its sealing performance; realizing not only simulating sealing experiments under real environment, but also realizing automated testing from multiple angles and under multiple working conditions.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test device for the sealing performance of a distribution box, comprising a base (1), characterized in that: A sealing test mechanism (2) is provided on the base (1) and used for sealing tests of the distribution box. The sealing test mechanism (2) includes: The spray assembly (21) includes a water tank (211) fixed to the top of the base (1), a water supply pipe (212) fixed above the rear end of the inner wall of the water tank (211), and a number of nozzles (213) installed on the water supply pipe (212). The adjustment assembly (22) includes a stand (221) fixed to the rear end of the top of the water tank (211), a lead screw (222) is rotatably mounted inside the stand (221), a sleeve (223) is threaded on the outside of the lead screw (222), a first geared motor (224) is mounted on the top of the stand (221) and is used to drive the lead screw (222) to rotate, and a flipping component (225) is provided on the sleeve (223) and is used to adjust the angle of the distribution box; A fixing component (23) is provided on the flipping component (225) and is used to fix the distribution box.

2. The distribution box sealing test equipment according to claim 1, characterized in that: The flipping component (225) includes a bracket (2251) fixed on the sleeve (223). A shaft bracket (2252) is rotatably mounted on the inner wall of both ends of the bracket (2251). A housing (2253) is fixed on the outer wall of one end of the bracket (2251). A driven bevel gear (2254) is rotatably mounted inside the housing (2253) and fixed to one of the shaft brackets (2252). A driving bevel gear (2255) is rotatably mounted inside the housing (2253) and meshes with the driven bevel gear (2254) for transmission. A second reduction motor (2256) is mounted on the outer wall of one end of the bracket (2251), and a connecting shaft (2257) is fixed between the output end of the second reduction motor (2256) and the driving bevel gear (2255).

3. The distribution box sealing test equipment according to claim 2, characterized in that: The fixing component (23) includes a frame (231) fixed between the two end brackets (2252). Slide plates (232) are slidably installed at both ends of the frame (231). A clamp plate (233) is fixed at the upper end of the slide plate (232). A rotating rod (234) is rotatably installed at the upper end of the frame (231). A connecting rod (235) is pivotally connected to both ends of the rotating rod (234), and the other end of the connecting rod (235) is pivotally connected to the slide plate (232).

4. The distribution box sealing test equipment according to claim 3, characterized in that: One of the slide plates (232) is connected to a threaded cylinder (236) at the bottom, and a threaded sleeve (237) is connected to the bottom of the frame (231). A threaded rod (238) is rotatably installed on the outer wall of the threaded cylinder (236), and the inner wall of the threaded rod (238) is threadedly installed with the outer wall of the threaded sleeve (237).

5. The electrical distribution box sealing test equipment according to claim 1, characterized in that: A water pump (214) is installed at the top rear end of the base (1), and the outlet of the water pump (214) is connected to the water supply pipe (212) through a pipe. The inlet of the water pump (214) is connected to a filter (215) through a pipe. An inlet and outlet pipe (216) is fixed at the bottom of the water tank (211). A three-way pipe (217) is fixed at the end of the inlet and outlet pipe (216), and the three-way pipe (217) is connected to the filter (215) through a pipe. A connector (218) is fixed at the rear end of the three-way pipe (217).

6. The distribution box sealing test equipment according to claim 2, characterized in that: The adjustment assembly (22) also includes a guide wheel (226) that is rotatably mounted on the outer wall of the bracket (2251) and cooperates with the upright (221).

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