Buried distribution transformer

Abstract

The utility model relates to the technical field of transformers, and discloses a buried distribution transformer which comprises a buried shell, a shear fork frame is installed at the bottom of the inner side wall of the buried shell, and the power input end of the shear fork frame is connected with the power output end of an electric telescopic rod obliquely installed on the inner side wall of the shear fork frame. According to the buried distribution transformer disclosed by the utility model, the shear fork frame is mounted at the bottom in the buried shell, the whole transformer can be lifted out of the ground for maintenance through the driving of a single electric telescopic rod, resources are saved, and the shear fork frame is mounted at the bottom in the buried shell, so that water can be synchronously drained; the lifting assembly and the drainage assembly do not need to be arranged independently, and the installation area is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an underground distribution transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are primary coil, secondary coil and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation and voltage stabilization. Underground distribution transformer is a common type of transformer. Underground transformer is divided into two parts, above ground and underground. It is suitable for urban environment, especially for densely populated central cities.

[0003] Application No. CN202223288830.8 discloses an underground distribution transformer, in which a fastening nut is arranged on the top of a drainage support seat, and under the action of an electric telescopic structure arranged on the top of the fastening nut, the connecting block arranged on the top of the electric telescopic structure is driven to adjust the height, and the supporting column arranged on the top of the connecting block, the slide groove opened on the surface of the supporting column, the shaft groove arranged on both sides of the outer wall of the supporting column, and the limit blocks arranged movably inside the shaft groove cooperate to make the rotating shaft arranged inside the shaft groove, the ring connecting piece arranged outside the rotating shaft, and the supporting rod welded outside the ring connecting piece move, and under the action of the rotating structure arranged on the top of the supporting column and the supporting rod on both sides, the supporting rod is driven when the electric telescopic structure is in operation. The columns and support rods are supported at an angle, which drives the underground part of the transformer body to be lifted, effectively reducing the maintenance difficulty of the staff when problems occur in the underground part of the buried transformer, and improving the maintenance efficiency; under the action of the drainage end groove starting from the surface of the drainage support seat, the internal accumulated water is effectively discharged, and under the action of the buffer spring member arranged on the top of the drainage end groove and the elastic support rod arranged on the top of the buffer spring member, the installed transformer body is effectively provided with buffer support, and a base is arranged at the bottom of the drainage support seat, and the base and the drainage support seat form a certain height, which effectively prevents the backflow of the discharged water, and the internal accumulated water is effectively discharged through the water tank structure arranged inside the base and the drainage hole end opened on the outer wall of the base.

[0004] The underground distribution transformer disclosed in the above patent is raised and lowered by an electric telescopic structure and an inverted V-shaped frame installed on two sides of the transformer. Not only does it require two electric telescopic rods, which wastes cost and electricity resources, but it also fails to lift the entire transformer out of the ground. The bottom drainage space occupies an independent area, wasting installation area. Utility Model Content

[0005] The purpose of the utility model is to provide an underground distribution transformer. The underground distribution transformer disclosed by the utility model has a scissor frame installed at the bottom of the underground shell, and the transformer can be lifted out of the ground for maintenance by a single electric telescopic rod, which saves resources. The scissor frame is installed at the bottom of the underground shell and can drain water synchronously. There is no need to arrange space for the lifting component and the drainage component separately, which saves installation area and solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an underground distribution transformer, comprising an underground shell, a scissor frame is installed at the bottom of the inner wall of the underground shell, the power input end of the scissor frame is connected to the power output end of an electric telescopic rod obliquely installed on its inner wall, and a transformer is installed on the top of the scissor frame through a supporting plate.

[0007] Preferably, a drainage port 4 is provided at the lower portion of the buried shell 1 , and the drainage port 4 is connected to a drainage ditch at a lower position through a drainage pipe 5 .

[0008] Preferably, the upper and lower parts of the left end of the scissor frame 6 are respectively connected to the supporting plate 2 and the buried shell 1 through sliding components, and the upper and lower parts of the right end of the scissor frame 6 are fixedly connected to the supporting plate 2 and the buried shell 1.

[0009] Preferably, the sliding assembly includes a slide bar 8 fixedly installed at the bottom of the supporting plate 2 and the bottom of the inner wall of the buried shell 1, a first limit plate 9 is fixedly connected to both ends of the slide bar 8, a slide seat 7 is slidably connected outside the slide bar 8, and a slide seat 7 is installed on the upper and lower parts of the left end of the scissor frame 6.

[0010] Preferably, connecting rods 13 are installed on the upper and lower parts of the inner wall of the scissor frame 6, and hinge ears 10 are rotatably connected in the middle of the upper and lower connecting rods 13 and an electric telescopic rod 12 is hinged through the hinge ears 10, and second limit plates 11 are fixedly installed outside the connecting rods 13 and on both sides of the hinge ears 10.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The underground distribution transformer disclosed by the utility model has a scissor frame installed at the bottom of the underground shell, and the transformer can be lifted out of the ground for maintenance by a single electric telescopic rod, which saves resources. The scissor frame is installed at the bottom of the underground shell and can drain water simultaneously. There is no need to arrange space for the lifting component and the drainage component separately, which saves installation area. The utility model solves the problem that the underground distribution transformer disclosed in the above patent is lifted by the electric telescopic structure and the inverted V-shaped frame installed on two sides of the transformer, which not only needs to use two electric telescopic rods to waste cost and power resources, but also cannot support the entire transformer out of the ground, and the bottom drainage space occupies an area independently, which wastes the installation area. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 for Figure 2 The structural diagram at A in the middle;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0017] In the figure: 1. underground shell; 2. supporting plate; 3. transformer; 4. drain outlet; 5. drain pipe; 6. scissor frame; 7. slide seat; 8. slide bar; 9. first limit plate; 10. hinge ear; 11. second limit plate; 12. electric telescopic rod; 13. connecting rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4 The underground distribution transformer shown in the figure includes an underground shell 1, a scissor frame 6 is installed at the bottom of the inner wall of the underground shell 1, the power input end of the scissor frame 6 is connected to the power output end of the electric telescopic rod 12 installed obliquely on the inner wall thereof, and a transformer 3 is installed on the top of the scissor frame 6 through a supporting plate 2. The underground distribution transformer 3 disclosed in the utility model is installed with the scissor frame 6 at the bottom of the underground shell 1, and the transformer 3 can be lifted out of the ground for maintenance by a single electric telescopic rod 12, which saves resources. The scissor frame 6 is installed at the bottom of the underground shell 1 and can drain water synchronously. There is no need to arrange space for the lifting component and the drainage component separately, which saves installation area.

[0020] Furthermore, a drain port 4 is provided at the bottom of the buried shell 1, and the drain port 4 is connected to a lower drain ditch through a drain pipe 5 for easy drainage; further, the upper and lower left ends of the scissor frame 6 are respectively connected to the supporting plate 2 and the buried shell 1 through a sliding assembly, and the upper and lower right ends of the scissor frame 6 are fixedly connected to the supporting plate 2 and the buried shell 1 for easy installation; further, the sliding assembly includes a slide bar 8 fixedly installed at the bottom of the supporting plate 2 and the bottom of the inner wall of the buried shell 1, and the first limit plate 9 is fixedly connected to the two ends of the slide bar 8, and the outer sliding connection of the slide bar 8 There is a slide seat 7, and the slide seat 7 is installed on the upper and lower parts of the left end of the scissors frame 6. When the scissors frame 6 is stretched, the slide seat 7 on the left side of the scissors frame 6 slides to the right along the slide bar 8, so that the scissors frame 6 is stretched smoothly, and the same is true when the scissors frame 6 is contracted; further, connecting rods 13 are installed on the upper and lower parts of the inner side walls of the scissors frame 6, and the middle of the upper and lower connecting rods 13 are rotatably connected with hinged ears 10 and the electric telescopic rod 12 is hinged through the hinged ears 10, and second limiting plates 11 are fixedly installed outside the connecting rod 13 and at both sides of the hinged ears 10, and the limiting effect is good.

[0021] The scissor frame 6 is installed at the bottom of the buried shell 1 of the underground distribution transformer 3 disclosed by the utility model during use. The transformer 3 can be lifted out of the ground for maintenance by a single electric telescopic rod 12, which saves resources. The scissor frame 6 is installed at the bottom of the buried shell 1 and can drain water synchronously. There is no need to arrange space for the lifting component and the drainage component separately, which saves installation area. When the transformer 3 needs to be repaired, the top cover of the buried shell 1 is opened, and the external power supply controls the extension of the electric telescopic rod 12 through the external switch to stretch the scissor frame 6. The slide seat 7 on the left side of the scissor frame 6 slides to the right along the slide bar 8, so that the scissor frame 6 stretches steadily, and the supporting plate 2 and the transformer 3 on the top thereof are slowly lifted out of the buried shell 1 for easy maintenance. At the same time, the scissor frame 6 is installed at the bottom of the inner wall of the buried shell 1, does not occupy drainage space, can perform drainage work synchronously, saves costs, and saves installation area (the electric telescopic rod 12 is an existing product on the market).

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underground distribution transformer, characterized in that: The invention comprises an underground shell (1), wherein a scissor frame (6) is installed at the bottom of the inner wall of the underground shell (1), a power input end of the scissor frame (6) is connected to a power output end of an electric telescopic rod (12) obliquely installed on the inner wall thereof, and a transformer (3) is installed at the top of the scissor frame (6) via a supporting plate (2).

2. The underground distribution transformer according to claim 1, characterized in that: A drainage port (4) is provided at the lower part of the buried shell (1), and the drainage port (4) is connected to a drainage ditch at a lower position through a drainage pipe (5).

3. The underground distribution transformer according to claim 1, characterized in that: The upper and lower parts of the left end of the scissor frame (6) are respectively connected to the support plate (2) and the buried shell (1) through sliding components, and the upper and lower parts of the right end of the scissor frame (6) are fixedly connected to the support plate (2) and the buried shell (1).

4. The underground distribution transformer according to claim 3, characterized in that: The sliding assembly comprises a sliding bar (8) fixedly mounted on the bottom of the supporting plate (2) and the bottom of the inner wall of the buried shell (1), the two ends of the sliding bar (8) being fixedly connected to a first limiting piece (9), the sliding bar (8) being slidably connected to a sliding seat (7) outside, and the sliding seat (7) being mounted on the upper and lower parts of the left end of the scissor frame (6).

5. The underground distribution transformer according to claim 4, characterized in that: The upper and lower parts of the inner wall of the scissor frame (6) are both equipped with connecting rods (13), the middle of the upper and lower connecting rods (13) are rotatably connected with hinge ears (10) and the electric telescopic rod (12) is hingedly connected through the hinge ears (10), and second limit plates (11) are fixedly installed outside the connecting rod (13) and at both sides of the hinge ears (10).

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