Waterproof mounting structure of buried transformer

Abstract

The utility model discloses a waterproof installation structure of a buried transformer. According to the technical scheme, the box-type transformer installation structure comprises a foundation, a cable well and a box-type transformer well are arranged on the foundation, a set of cable inlet and outlet holes are formed in the cable well, drainage holes are formed in the positions, corresponding to the lower portions of the cable inlet and outlet holes, of the foundation, and a water collection pit is formed in the position, corresponding to the lower portion of the installation position of the box-type transformer, of the foundation. The bottom of the foundation is provided with a water seepage layer communicated with the water drainage holes, a water drainage pump is arranged in the water collection pit, and the water drainage pump is connected with a water drainage pipe led out of the box-type transformer well.

Description

Technical Field

[0001] The utility model belongs to the field of low-voltage electrical equipment, and in particular relates to an underground transformer. Background Art

[0002] The so-called underground transformer, as the name implies, is a transformer buried underground. Compared with other transformers, the appearance of traditional underground transformers does not occupy ground space, does not affect the urban landscape, and thus significantly improves the utilization rate of urban land. It can also withstand harsh climatic conditions, pollution and corrosion. Its operation is safe and stable and is usually not affected by external interference. The biggest disadvantages of traditional underground transformers are:

[0003] The risk of disasters is high and water accumulation is likely to occur. If it is not discovered and handled in time, it may cause accidents. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a waterproof installation structure for an underground transformer.

[0005] To solve the above problems, the utility model adopts a technical solution: for installing a box-type transformer, including a foundation, characterized in that: a cable well and a box-type transformer well are provided on the foundation, a group of cable inlet and outlet holes are provided on the cable well, drainage holes are provided below the foundation corresponding to the cable inlet and outlet holes, a sump is provided below the installation location corresponding to the installation of the box-type transformer, a water seepage layer connected to the drainage holes is provided at the bottom of the foundation, a drainage pump is provided in the sump, and a drainage pipe leading out of the box-type transformer well is connected to the drainage pump.

[0006] The waterproof installation structure of the buried transformer is characterized in that: a manhole cover is provided at the wellhead of the box-type transformer well, and the manhole cover is composed of a cement cover plate and a metal cover plate. The ends of the metal cover plate are hinged to the manhole cover frame, and "U"-shaped waterproof grooves are provided at both ends of the manhole cover frame, and "C"-shaped waterproof edges embedded in the "U"-shaped waterproof grooves are provided at both ends of the metal cover plate.

[0007] The waterproof installation structure of the underground transformer is characterized in that a cylinder is provided between the metal cover plate and the manhole cover frame.

[0008] The waterproof installation structure of the underground transformer is characterized in that the installation box-type transformer is installed above the sump of the foundation after being raised by the first embedded channel steel.

[0009] The waterproof installation structure of the buried transformer is characterized in that a water accumulation monitoring sensor for detecting water accumulation in the sump is provided on the drainage pump.

[0010] The waterproof installation structure of the underground transformer is characterized in that: a grounding wire is connected to the first embedded channel steel, and the other end of the grounding wire is connected to a grounding nail inserted into the ground.

[0011] The waterproof installation structure of the underground transformer is characterized in that a distribution box is installed at the wellhead of the cable well through a second embedded channel steel.

[0012] The waterproof installation structure of the underground transformer is characterized in that an advertising box is installed above the cement cover plate of the box-type transformer well.

[0013] The waterproof installation structure of the underground transformer is characterized in that the side walls of the cable well and the box-type transformer well are both provided with ladders.

[0014] The waterproof installation structure of the underground transformer is characterized in that a groove is provided on the surface of the cement cover plate.

[0015] The waterproof installation structure of the underground transformer of the utility model has the advantages that the accumulated water in the well can be effectively discharged by combining water seepage and water pumping, and the waterproof structure can also prevent the external accumulated water from entering the well.

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the transverse cross-sectional structure of the waterproof installation structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the longitudinal cross-sectional structure of the waterproof installation structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the cable well and box-type transformer well of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the manhole cover of the utility model. DETAILED DESCRIPTION

[0021] like Figure 1-4As shown, the waterproof installation structure of the underground transformer of the utility model is used to install the box-type transformer 1, including a foundation 2, on which a cable well 3 and a box-type transformer well 4 are connected to each other, and the foundation 2, the cable well 3 and the box-type transformer well 4 are all made of reinforced concrete. A group of cable inlet and outlet holes 5 are provided on the cable well 3, and the underground cables are introduced into the cable inlet and outlet holes 5. A drainage hole 6 is provided below the foundation 2 corresponding to the cable inlet and outlet holes 5, and a sump 7 is provided below the foundation 2 corresponding to the installation position of the box-type transformer 1. A water seepage layer 8 connected to the drainage hole 6 is provided at the bottom of the foundation 2. The water seepage layer 8 is ideally made of slag. A drainage pump 9 is provided in the sump 7, and a drainage pipe 10 leading out of the box-type transformer well 4 is connected to the drainage pump 9.

[0022] Preferably, the wellhead of the box-type transformer well 4 is provided with a well cover 11, which is composed of a cement cover plate 12 and a metal cover plate 13. The ends of the metal cover plate 13 are hinged to the well cover frame 14. The two ends of the well cover frame 14 are provided with a "U"-shaped waterproof groove 15, and the two ends of the metal cover plate 13 are provided with a "C"-shaped waterproof edge 16 embedded in the "U"-shaped waterproof groove 15. Through the above structure, waterproofing at the wellhead is achieved. The surface of the cement cover plate 12 can also be provided with a groove for filling soil, and then planting lawns to improve the aesthetics.

[0023] Preferably, a cylinder 17 is provided between the metal cover plate 13 and the manhole cover frame 14. When the cement cover plate 12 is removed, the metal cover plate 13 is lifted up by the cylinder 17 to realize automatic opening of the cover for easy maintenance.

[0024] Preferably, the installation box-type transformer 1 is elevated by a first embedded channel steel 18 and then installed above the sump 7 of the foundation 2 .

[0025] Preferably, the drainage pump 9 is provided with a water accumulation monitoring sensor 19 for detecting water accumulation in the sump 7. When the water accumulation monitoring sensor 19 detects water accumulation, the drainage pump 9 is automatically turned on. The water accumulation monitoring sensor 19 is a well-known technology and will not be described in detail here.

[0026] Preferably, a grounding wire 20 is connected to the first embedded channel steel 18, and the other end of the grounding wire 20 is connected to a grounding nail 21 inserted into the ground, so as to realize convenient connection of the grounding wire.

[0027] Preferably, a distribution box 23 is installed at the wellhead of the cable well 3 through the second embedded channel steel 22. The distribution box 23 facilitates the connection of the cables in the cable well 3 and the box-type transformer well 4.

[0028] Preferably, an advertising box 24 is installed above the cement cover 12 of the box-type transformer well 4. The advertising box 24 can block rainwater from entering the box-type transformer well 4, and at the same time, advertisements can be displayed, serving two purposes at one stroke.

[0029] Preferably, the side walls of the cable well 3 and the box-type transformer well 4 are provided with ladders 25 to facilitate the entry and exit of the staff.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A waterproof installation structure for an underground transformer, used for installing a box-type transformer (1), comprising a foundation (2), characterized in that: A cable well (3) and a box-type transformer well (4) are provided on the foundation (2); a group of cable inlet and outlet holes (5) are provided on the cable well (3); drainage holes (6) are provided below the cable inlet and outlet holes (5) on the foundation (2); a sump (7) is provided below the installation location of the box-type transformer (1); a water seepage layer (8) connected to the drainage holes (6) is provided at the bottom of the foundation (2); a drainage pump (9) is provided in the sump (7); and a drainage pipe (10) leading out of the box-type transformer well (4) is connected to the drainage pump (9).

2. The waterproof installation structure of the underground transformer according to claim 1 is characterized in that: The wellhead of the box-type transformer well (4) is provided with a well cover (11), the well cover (11) being composed of a cement cover plate (12) and a metal cover plate (13), the ends of the metal cover plate (13) being hinged to a well cover frame (14), both ends of the well cover frame (14) being provided with "U"-shaped waterproof grooves (15), and both ends of the metal cover plate (13) being provided with "C"-shaped waterproof edges (16) embedded in the "U"-shaped waterproof grooves (15).

3. The waterproof installation structure of the underground transformer according to claim 2 is characterized in that: A cylinder (17) is provided between the metal cover plate (13) and the manhole cover frame (14).

4. The waterproof installation structure of the underground transformer according to claim 1, characterized in that: The installation box-type transformer (1) is elevated by a first embedded channel steel (18) and then installed above the sump (7) of the foundation (2).

5. The waterproof installation structure of the underground transformer according to claim 1, characterized in that: The drainage pump (9) is provided with a water accumulation monitoring sensor (19) for detecting the water accumulation in the sump (7).

6. The waterproof installation structure of the underground transformer according to claim 4, characterized in that: The first embedded channel steel (18) is connected to a grounding wire (20), and the other end of the grounding wire (20) is connected to a grounding nail (21) inserted into the ground.

7. The waterproof installation structure of the underground transformer according to claim 1, characterized in that: A distribution box (23) is installed at the wellhead of the cable well (3) via a second embedded channel steel (22).

8. The waterproof installation structure of the underground transformer according to claim 2, characterized in that: An advertising box (24) is installed above the cement cover plate (12) of the box-type transformer well (4).

9. The waterproof installation structure of the underground transformer according to claim 1, characterized in that: The side walls of the cable well (3) and the box-type transformer well (4) are both provided with ladders (25).

10. The waterproof installation structure of the underground transformer according to claim 2, characterized in that: A groove (26) is provided on the surface of the cement cover plate (12).

Images