Box-type transformer base with drainage structure

Abstract

The invention discloses a box-type transformer base with a drainage structure, and belongs to the technical field of box-type transformers, the box-type transformer base comprises a base body, a first cavity is arranged in the base, a first groove is formed in the top surface of the first cavity, the first groove is used for placing a box-type transformer body, a flow guide mechanism is arranged in the first cavity, and water outlets are respectively formed in two sides of the flow guide mechanism. A filtering mechanism is arranged at the end, located in the first cavity, of the water outlet and comprises a connecting frame fixedly connected to the outer side of the water outlet, a filtering part is arranged on the connecting frame, a cleaning part is arranged outside the connecting frame, a second cavity is formed in the top, close to the water outlet, of the base, and an opening and closing mechanism is arranged in the second cavity. And the base body accommodates the box-type transformer body through the first cavity and is positioned and mounted through the first groove. The water draining, filtering and cleaning functions are integrated in the base body, the problems that a traditional base is prone to water accumulation and blocking are solved, and the environmental adaptability is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of box-type transformers, and particularly relates to a box-type transformer base with a drainage structure. BACKGROUND

[0002] As core equipment for realizing voltage conversion and distribution in a power system, a box-type transformer (referred to as "box transformer") has a base structure that bears multiple functions such as support, protection and environmental adaptation. Early box transformer bases mostly adopt concrete pouring platforms, which can meet basic bearing requirements but have problems such as immobility and water accumulation. With the development of the miniaturization and modularization trend of power facilities, a steel structure base gradually becomes a mainstream scheme. When a box-type transformer station is used, it is mostly directly installed on the ground. For some box-type transformer stations with uneven surrounding ground, when it rains, water will accumulate in the depressed part of the ground, and the accumulated water is easy to seep into the inside of the box-type transformer station from the bottom of the box-type transformer station, which can easily cause short circuit of the electrical appliances inside the box, resulting in damage to the equipment. SUMMARY

[0003] The application aims to provide a box-type transformer base with a drainage structure to solve the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the application provides the following scheme: the application provides a box-type transformer base with a drainage structure, which comprises a base body, a first cavity is arranged in the base, a first groove is arranged on the top surface of the first cavity, the first groove is used for placing a box-type transformer body, a flow guide mechanism is arranged in the first cavity, water outlets are arranged on the two sides of the flow guide mechanism, a filtering mechanism is arranged at one end of the water outlet in the first cavity, the filtering mechanism comprises a connecting frame fixed outside the water outlet, a filtering part is arranged on the connecting frame, a cleaning part is arranged outside the connecting frame, a second cavity is arranged on the top of the base close to the water outlet, and an opening and closing mechanism is arranged in the second cavity.

[0005] Preferably, the connecting frame is fixed to the inner wall of the first cavity, second grooves are symmetrically arranged in the connecting frame, first filter screens are slidably connected in the second grooves, and second filter screens are fixed to the side of the connecting frame away from the inner wall of the first cavity, and the cleaning part is arranged outside the second filter screens.

[0006] Preferably, the cleaning unit comprises first connecting rods symmetrically fixed to the top of the connecting frame on both sides, the first connecting rods are fixed to the inner wall of the first cavity, the first connecting rods are fixed with second connecting rods at the end away from the first cavity, the bottom surface of the first cavity is fixed with third connecting rods, the third connecting rods are below the second connecting rods and parallel to the second connecting rods, a scraper is slidingly connected between the second connecting rods and the third connecting rods, the scraper is in abutment with the surface of the second filter screen, and a first driving member is drivingly connected to the scraper.

[0007] Preferably, the first driving member comprises a first motor fixed in the second cavity, a first connecting shaft is fixed to the output shaft of the first motor, the end of the first connecting shaft away from the first motor penetrates through the side wall of the second cavity and extends into the first cavity, a first bevel gear is fixed to the end of the first connecting shaft extending into the first cavity, a first screw rod is threadedly connected to the scraper, a second bevel gear is fixed to the end of the first screw rod close to the first connecting shaft, the second bevel gear is engaged with the first bevel gear, and a fourth connecting rod is rotatably connected to the end of the first screw rod away from the second bevel gear, the fourth connecting rod is fixed between the second connecting rod and the third connecting rod.

[0008] Preferably, a flow meter is arranged in the water outlet, the opening and closing mechanism comprises a first opening arranged on the top surface of the water outlet, the first opening is communicated with the second cavity, a baffle is slidingly connected in the first opening, the top surface of the baffle is symmetrically fixed with first connecting plates, springs are arranged between the first connecting plates and the second cavity, and a second driving member is arranged on the top surface of the baffle.

[0009] Preferably, the second driving member comprises a second motor fixed to the top of one side of the second cavity, a connecting disc is fixed to the output shaft of the second motor, one end of a connecting rope is arranged around the connecting disc, and the other end of the connecting rope is fixed to the top surface of the baffle through a guide wheel.

[0010] Preferably, a one-way valve is arranged in the water outlet.

[0011] Preferably, a liquid level sensor is arranged on the top of the first cavity.

[0012] Preferably, the flow guide mechanism comprises second connecting plates symmetrically fixed in the first cavity, the top surface of the second connecting plates is fixed with third connecting plates, and the adjacent sides of the two third connecting plates are fixed.

[0013] Preferably, the side wall of the base body is provided with a hydrophobic coating.

[0014] The application discloses the following technical effects: the base body contains the box-type transformer body through the first cavity, and the first groove is positioned and installed. The drainage mechanism guides the accumulated water to the water outlets on both sides of the first cavity. When the water flows through the water outlets, the impurities are removed through the filtering mechanism first, and the cleaning part synchronously cleans the surface of the filtering mechanism. The opening and closing mechanism in the second cavity controls the opening and closing of the water outlets according to the flow or liquid level data. The application integrates the drainage, filtering and cleaning functions in the base body, solves the problems of easy water accumulation and easy blockage of the traditional base, and improves the environmental adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings constituting a part of this application are used to provide further understanding of the application, the embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0016] Figure 1 A structure diagram of the box-type transformer base with the drainage structure of the application;

[0017] Figure 2 A structure diagram of the box-type transformer base with the drainage structure of the application; Figure 1 A local enlarged view of A;

[0018] Figure 3 A structure diagram of the box-type transformer base with the drainage structure of the application;

[0019] Figure 4 A structure diagram of the box-type transformer base with the drainage structure of the application; Figure 3 A local enlarged view of B.

[0020] 1, base body; 2, first cavity; 3, first groove; 4, water outlet; 5, connecting frame; 6, second cavity; 7, second groove; 8, first filter screen; 9, second filter screen; 10, first connecting rod; 11, second connecting rod; 12, third connecting rod; 13, scraper; 14, first motor; 15, first connecting shaft; 16, first bevel gear; 17, first lead screw; 18, second bevel gear; 19, fourth connecting rod; 20, flowmeter; 21, first opening; 22, baffle; 23, first connecting plate; 24, spring; 25, second motor; 26, connecting disc; 27, connecting rope; 28, guide wheel; 29, one-way valve; 30, liquid level sensor; 31, second connecting plate; 32, third connecting plate. DETAILED DESCRIPTION

[0021] As the core equipment for voltage conversion and distribution in power systems, the base structure of the box-type transformer bears multiple functions such as support, protection, and environmental adaptation. Early box transformer bases mostly use concrete pouring platforms, which can meet the basic bearing requirements but have problems such as immobility and water accumulation. With the development of the miniaturization and modularization trend of power facilities, steel base has gradually become the mainstream solution, which forms a frame structure by combining channel steel, I-beam, etc., reducing weight and facilitating transportation. However, the steel base in outdoor environments faces challenges such as rainwater accumulation and underground water seepage, which directly threatens the safe operation of the electrical components inside the box transformer.

[0022] The early drainage function of the steel base mainly relies on natural slope design. Typical structures include:

[0023] Single-layer frame structure: The base is formed by welding a first channel steel and a second channel steel into a rectangular frame, and a third channel steel is laid at the bottom as a support beam to realize natural drainage through the gap between the frame and the ground.

[0024] Double-layer frame structure: On the basis of the single-layer frame, a secondary support structure is added to reduce the risk of water accumulation by raising the installation height of the box transformer, but the multi-layer welding leads to increased material consumption and weight.

[0025] The limitations of such designs are significant: the efficiency of natural drainage is limited by the terrain, and when it rains heavily or the underground water level rises, water can still accumulate inside the base, and the gaps in the frame can be easily blocked by silt, further reducing the drainage capacity.

[0026] To address the shortcomings of passive drainage, active drainage technology has been gradually applied to box transformer bases:

[0027] Water pump driven scheme: A water pump and water inlet / outlet pipeline are integrated into the base frame, and the drainage operation is triggered by a liquid level sensor. For example, in a certain patent disclosed steel base, the water pump is installed below the support plate, the water inlet is connected to the water seepage hole at the bottom of the box transformer, and the water outlet extends to the external drainage ditch.

[0028] Gravity flow channel design: Use an inclined water flow platform to guide water flow to the drainage pump area, and combine a anti-clogging cover and a worm gear structure to prevent impurities from entering the pump body. Although this design can improve drainage efficiency, it requires high precision for the installation slope, and the anti-clogging cover needs to be cleaned regularly.

[0029] The core problem of active drainage systems is the contradiction between energy consumption and reliability: the continuous operation of the water pump increases energy consumption, and sensor failures or pipeline blockages can easily lead to system failure.

[0030] Filter screen and anti-clogging technology

[0031] To prevent impurities from entering the drainage system, existing technologies mostly use a multi-stage filtration scheme:

[0032] Outer coarse filter screen: Typically made of stainless steel punched mesh with a pore size of 5-10mm, intercepting large particles such as leaves and plastic bags.

[0033] Inner fine filter screen: Often made of copper-based sintered mesh or conical filter screen structure, with a pore size of 1-3mm, self-cleaning achieved through rotating brushes or vibrators.

[0034] However, the cleaning mechanism of existing filter screen systems relies on electric actuators, requiring additional energy consumption and having a high failure rate. Some designs incorporate backwashing functions, but require complex piping support, increasing system costs.

[0035] Material and corrosion prevention technology

[0036] Steel base is in a humid environment for a long time, material corrosion resistance is crucial:

[0037] Groove steel surface treatment: Generally uses hot galvanizing or epoxy coating process, but the welding area is prone to corrosion due to coating damage.

[0038] Non-metallic material application: Some new bases use glass fiber reinforced plastic (FRP) instead of steel, which reduces weight but limits load-bearing capacity, and is mostly used in small box transformers.

[0039] The trade-off point of material selection is the balance between cost, strength and durability, and existing solutions have not completely solved the problem of long-term corrosion.

[0040] Modularization and integration trend

[0041] With the advancement of power facility standardization, modular design has become an important direction for box transformer bases:

[0042] Separate base: High-voltage processors, low-voltage processors and transformers are installed in separate bases, and quick assembly is achieved through slide-slot and slide-bar structures. Although this design is convenient for transportation, the drainage system needs to be configured independently, and the integration is insufficient.

[0043] Pre-embedded base: The base is designed in an integrated manner with the foundation, fixed in the foundation pit through the ground rod, and combined with the water immersion hole to realize underground water seepage drainage. However, the pre-embedded structure has poor adaptability to geological conditions, and maintenance requires overall excavation, which is costly.

[0044] Existing box transformer base drainage technology has formed two categories of passive drainage and active drainage, and has made some progress in filter screen design, material application, and modularization. However, existing technology still has core problems such as low drainage efficiency, high maintenance cost, and poor environmental adaptability. In particular, in areas with frequent heavy rains or high groundwater levels, traditional designs are difficult to balance cost, reliability and long-term operation requirements.

[0045] With reference to the accompanying drawings: a clear and complete description will be given to the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0046] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Referring to Figures 1-4 The embodiment provides a box-type transformer base with a drainage structure, which comprises a base body 1, a first cavity 2 is arranged in the base, a first groove 3 is arranged on the top surface of the first cavity 2, the first groove 3 is used for placing a box-type transformer body, a flow guide mechanism is arranged in the first cavity 2, water outlets 4 are arranged on the two sides of the flow guide mechanism, a filtering mechanism is arranged on one end of the water outlet 4 in the first cavity 2, the filtering mechanism comprises a connecting frame 5 fixed to the outer side of the water outlet 4, a filtering part is arranged on the connecting frame 5, a cleaning part is arranged outside the connecting frame 5, a second cavity 6 is arranged on the top of the base close to the water outlet 4, and an opening and closing mechanism is arranged in the second cavity 6.

[0048] The base body 1 contains the box-type transformer body through the first cavity 2, and the first groove 3 is positioned and installed. The flow guide mechanism guides the accumulated water to the water outlets 4 on the two sides of the first cavity 2. When the water flows through the water outlet 4, the filtering mechanism is used to remove impurities, and the cleaning part is used to clean the surface of the filtering mechanism at the same time. The opening and closing mechanism in the second cavity 6 controls the opening and closing of the water outlet 4 according to the flow or liquid level data. After the box-type transformer body is placed on the first groove 3, gaps are arranged between the two sides close to the water outlet 4 and the first groove 3, so that heat dissipation is facilitated with the bottom of the box-type transformer body. The base body 1 integrates the drainage, filtering and cleaning functions, solves the problems of easy water accumulation and easy blockage of the traditional base, and improves the environmental adaptability.

[0049] Further optimization scheme, the connecting frame 5 is fixed to the inner wall of the first cavity 2, the second groove 7 is symmetrically arranged in the connecting frame 5, the first filter screen 8 is slidably connected in the second groove 7, the second filter screen 9 is fixed to the side of the connecting frame 5 away from the inner wall of the first cavity 2, and the cleaning part is arranged outside the second filter screen 9.

[0050] The connecting frame 5 is fixed to the inner wall of the first cavity 2, the second groove 7 is used for containing the first filter screen 8 (which can be replaced slidably), and the first filter screen 8 intercepts small impurities. The cleaning part scrapes and cleans the surface of the second filter screen 9. The double-layer filtering structure classifies and intercepts impurities (large particles are intercepted by the second filter screen 9, and small particles are intercepted by the first filter screen 8), so that the single maintenance period is prolonged; and the modular design facilitates quick replacement of the filter screen through the gap.

[0051] Further optimization scheme, the cleaning part includes the first connecting rod 10 symmetrically fixed on both sides of the top of the connecting frame 5, the first connecting rod 10 is fixedly connected with the inner wall of the first cavity 2, the end of the first connecting rod 10 away from the first cavity 2 is fixedly connected with the second connecting rod 11, the bottom surface of the first cavity 2 is fixedly connected with the third connecting rod 12, the third connecting rod 12 is located below the second connecting rod 11 and is parallel to the second connecting rod 11, the second connecting rod 11 and the third connecting rod 12 are slidingly connected with the scraper 13, the scraper 13 is abutted with the surface of the second filter screen 9, and the first driving member is drivingly connected on the scraper 13.

[0052] The first connecting rod 10 fixes the overall structure of the cleaning part, and the second connecting rod 11 and the third connecting rod 12 form a guide track of the scraper 13. The scraper 13 reciprocatingly slides on the surface of the second filter screen 9, and the first driving member provides power. The scraper 13 directly contacts the second filter screen 9, physically removes the adhering objects, and avoids the decrease of the drainage efficiency caused by the clogging of the filter screen; the guide structure ensures that the scraper 13 moves stably and reduces mechanical wear.

[0053] Further optimization scheme, the first driving member includes the first motor 14 fixedly connected in the second cavity 6, the output shaft of the first motor 14 is fixedly connected with the first connecting shaft 15, the end of the first connecting shaft 15 away from the first motor 14 penetrates through the side wall of the second cavity 6 and extends into the first cavity 2, the end of the first connecting shaft 15 extending into the first cavity 2 is fixedly connected with the first bevel gear 16, the scraper 13 is threadedly connected with the first lead screw 17, the end of the first lead screw 17 close to the first connecting shaft 15 is fixedly connected with the second bevel gear 18, the second bevel gear 18 is engaged with the first bevel gear 16, and the end of the first lead screw 17 away from the second bevel gear 18 is rotatably connected with the fourth connecting rod 19, and the fourth connecting rod 19 is fixedly connected between the second connecting rod 11 and the third connecting rod 12.

[0054] The first motor 14 drives the first connecting shaft 15 to rotate, drives the first bevel gear 16 to rotate, and the engaged second bevel gear 18 drives the first lead screw 17 to rotate. The scraper 13 moves axially along the first lead screw 17 through the thread connection, and completes the comprehensive cleaning of the second filter screen 9. The bevel gear transmission realizes the power direction conversion, the lead screw transmission converts the rotary motion into the linear motion, ensures that the scraper 13 accurately reciprocates, and the fourth connecting rod 19 enhances the stability of the first lead screw 17 and reduces the vibration. The impurities near the water outlet 4 are cleaned regularly through the gap.

[0055] Further optimization scheme, the water outlet 4 is provided with a flowmeter 20, and the opening and closing mechanism includes a first opening 21 arranged on the top surface of the water outlet 4, the first opening 21 is communicated with the second cavity, a baffle 22 is slidingly connected in the first opening 21, first connecting plates 23 are symmetrically fixed on the top surface of the baffle 22, springs 24 are arranged between the first connecting plates 23 and the second cavity 6, and second driving members are arranged on the top surface of the baffle 22.

[0056] The flow meter 20 monitors the water flow rate of the water outlet 4, and triggers the second driving member when the flow rate is higher than a threshold value. The second driving member pulls the baffle 22 up through the connecting rope 27 to open the water outlet 4. The flow meter 20 feeds back the drainage state in real time to avoid invalid drainage caused by filter screen blockage; the spring 24 provides a default closing force to prevent sewage backflow; the baffle 22 dynamically adjusts the opening degree of the water outlet 4 to balance the drainage efficiency and anti-blocking demand.

[0057] Further optimization scheme, the second driving member includes a second motor 25 fixed to one side of the top of the second cavity 6, and the output shaft of the second motor 25 is fixedly connected with a connecting disc 26, and one end of a connecting rope 27 is wound on the connecting disc 26. The other end of the connecting rope 27 is fixedly connected with the top surface of the baffle 22 through a guide wheel 28.

[0058] The second motor 25 drives the connecting disc 26 to rotate, winds or releases the connecting rope 27, changes the direction of the pulling force through the guide wheel 28, and finally controls the lifting of the baffle 22.

[0059] Further optimization scheme, the water outlet 4 is provided with a one-way valve 29. The one-way valve 29 only allows water flow to flow out from the first cavity 2 to the outside, and blocks the reverse flow of external water. Prevent sewage backflow when it rains heavily or the groundwater level rises, protect the inside of the base dry; avoid secondary pollution of the filter screen due to backflow.

[0060] Further optimization scheme, the top of the first cavity 2 is provided with a liquid level sensor 30. The liquid level sensor 30 monitors the water level in the first cavity 2 in real time, and triggers an alarm or starts auxiliary drainage when the liquid level exceeds a safety value.

[0061] Further optimization scheme, the flow guide mechanism includes a second connecting plate 31 fixed symmetrically in the first cavity 2, and the top surface of the second connecting plate 31 is fixedly connected with a third connecting plate 32, and the two third connecting plates 32 are fixedly connected on one side adjacent to each other.

[0062] The second connecting plate 31 and the third connecting plate 32 form an inclined flow guide surface to guide the water at the bottom of the box-type transformer to the two sides of the first cavity 2. Optimize the water flow path to reduce the water accumulation dead angle; the symmetrical structure balances the drainage pressure on both sides to avoid local stress concentration.

[0063] Further optimization scheme, the sidewall of the base body 1 is provided with a hydrophobic coating. The hydrophobic coating covers the sidewall of the base to reduce the water adhesion time and accelerate the water flow sliding. Reduce the moisture level of the surface of the base to inhibit the growth of algae or microorganisms; reduce the residence of corrosion medium to prolong the service life of the material; cooperate with the internal drainage structure to improve the overall moisture-proof performance.

[0064] In the description of the present application, it needs to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0065] The above-described embodiments are only to describe the preferred modes of the present application, and not to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A box-type transformer base with a drainage structure, characterized in that: The system includes a base body (1), a first cavity (2) inside the base, a first groove (3) on the top surface of the first cavity (2), the first groove (3) being used to place the box-type transformer body, a flow guiding mechanism inside the first cavity (2), water outlets (4) on both sides of the flow guiding mechanism, a filter mechanism at one end of the water outlet (4) inside the first cavity (2), the filter mechanism including a connecting frame (5) fixed to the outside of the water outlet (4), a filter part on the connecting frame (5), a cleaning part outside the connecting frame (5), a second cavity (6) at the top of the base near the water outlet (4), and an opening and closing mechanism inside the second cavity (6).

2. The box-type transformer base with drainage structure according to claim 1, characterized in that: The connecting frame (5) is fixedly connected to the inner wall of the first cavity (2). The connecting frame (5) is symmetrically provided with a second groove (7). A first filter screen (8) is slidably connected in the second groove (7). A second filter screen (9) is fixedly connected to the side of the connecting frame (5) away from the inner wall of the first cavity (2). The cleaning part is provided outside the second filter screen (9).

3. The box-type transformer base with drainage structure according to claim 2, characterized in that: The cleaning unit includes first connecting rods (10) symmetrically fixed to both sides of the top of the connecting frame (5). The first connecting rods (10) are fixed to the inner wall of the first cavity (2). A second connecting rod (11) is fixed to one end of the first connecting rod (10) away from the first cavity (2). A third connecting rod (12) is fixed to the bottom surface of the first cavity (2). The third connecting rod (12) is located below the second connecting rod (11) and parallel to the second connecting rod (11). A scraper (13) is slidably connected between the second connecting rod (11) and the third connecting rod (12). The scraper (13) abuts against the surface of the second filter screen (9). A first driving member is drivenly connected to the scraper (13).

4. The box-type transformer base with drainage structure according to claim 3, characterized in that: The first driving component includes a first motor (14) fixedly connected to the second cavity (6). The output shaft of the first motor (14) is fixedly connected to a first connecting shaft (15). The end of the first connecting shaft (15) away from the first motor (14) passes through the side wall of the second cavity (6) and extends into the first cavity (2). The end of the first connecting shaft (15) extending into the first cavity (2) is fixedly connected to a first bevel gear (16). A first lead screw (17) is threaded onto the scraper (13). The end of the first lead screw (17) near the first connecting shaft (15) is fixedly connected to a second bevel gear (18). The second bevel gear (18) meshes with the first bevel gear (16). The end of the first lead screw (17) away from the second bevel gear (18) is rotatably connected to a fourth connecting rod (19). The fourth connecting rod (19) is fixedly connected between the second connecting rod (11) and the third connecting rod (12).

5. The box-type transformer base with drainage structure according to claim 1, characterized in that: The outlet (4) is equipped with a flow meter (20). The opening and closing mechanism includes a first opening (21) on the top surface of the outlet (4). The first opening (21) is connected to the second cavity (6). A baffle (22) is slidably connected in the first opening (21). A first connecting plate (23) is symmetrically fixed to the top surface of the baffle (22). A spring (24) is provided between the first connecting plate (23) and the second cavity (6). A second driving member is provided on the top surface of the baffle (22).

6. The box-type transformer base with drainage structure according to claim 5, characterized in that: The second driving component includes a second motor (25) fixedly connected to the top of one side of the second cavity (6). The output shaft of the second motor (25) is fixedly connected to a connecting disc (26). One end of a connecting rope (27) is wound on the connecting disc (26), and the other end of the connecting rope (27) is fixedly connected to the top surface of the baffle (22) through a guide wheel (28).

7. The box-type transformer base with drainage structure according to claim 1, characterized in that: The outlet (4) is equipped with a one-way valve (29).

8. The box-type transformer base with drainage structure according to claim 1, characterized in that: A liquid level sensor (30) is provided at the top of the first cavity (2).

9. The box-type transformer base with drainage structure according to claim 1, characterized in that: The flow guiding mechanism includes a second connecting plate (31) symmetrically fixed in the first cavity (2), and a third connecting plate (32) fixed on the top surface of the second connecting plate (31), with the two third connecting plates (32) fixed on adjacent sides.

10. The box-type transformer base with drainage structure according to claim 1, characterized in that: The sidewall of the base body (1) is provided with a hydrophobic coating.

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