Reusable in-tunnel transformer base device for water conservancy tunnel

Abstract

The utility model relates to the technical field of tunnel engineering construction auxiliary tools, and provides a reusable in-tunnel transformer base device for a water conservancy tunnel, which comprises a foundation framework, a plurality of supporting legs, a fixing plate and a hanging ring, the foundation framework is of a rectangular structure and is formed by welding I-shaped steel, the supporting legs are arranged at the bottoms of four corners of the framework and are welded at the bottoms, and the fixing plate is arranged on the bottom of the framework. The fixing plates are welded to the bottoms of the supporting legs. In addition, lifting rings are arranged at the top of the foundation frame to facilitate lifting. The transformer can be safely placed at the top of the foundation frame, and a brick or concrete foundation is avoided, so that the reusability of equipment is improved, and the engineering cost is reduced; and elastic telescopic wheels are further arranged at the bottom of the foundation frame, movement of the base can be achieved through movement of wheel bodies after the transformer is removed, the flexibility of the device is improved, and the good application prospect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tools for tunnel construction, and in particular to a reusable transformer base device for water conservancy tunnels. Background Technology

[0002] With the rapid advancement of national water conservancy infrastructure construction, most water conservancy projects are underground tunnel projects, which often involve many unfavorable geological sections. Many tunnels are constructed using the drill-and-blast method. Long-distance drill-and-blast tunnel construction requires high voltage inside the tunnel. When the distance reaches a certain length, high voltage is needed to enter the tunnel, and voltage conversion is carried out in the transformer chamber inside the tunnel. As the tunnel excavation length increases, the transformer chamber needs to be moved continuously. In the past, the foundation of the transformer chamber was made of brick masonry or concrete, which was inefficient, time-consuming, labor-intensive, and costly.

[0003] Therefore, there is an urgent need to develop a reusable transformer base device for water conservancy tunnels to overcome the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a reusable transformer base device for water conservancy tunnels, thereby improving construction efficiency and reducing construction costs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A reusable transformer base device for a water conservancy tunnel includes: a base frame, several legs at the bottom of the base frame, a fixing plate at the bottom of the legs, and several lifting rings at the top of the base frame; the base frame is a rectangular frame, the several legs are respectively located at the bottom of the four corners of the rectangular frame, and the several lifting rings are located at the top of the four corners of the base frame.

[0007] Preferably, the base frame has legs at the center of the bottom of both long sides.

[0008] Preferably, the bottom of the basic frame is provided with a plurality of elastic telescopic wheels, each elastic telescopic wheel comprising: a movable tube, a movable rod slidably connected to the movable tube, a mounting base located at the bottom of the movable rod, a spring whose upper end abuts against the bottom of the movable tube and whose lower end abuts against the top of the mounting base, and a wheel body rotatably connected to the bottom of the mounting base; the spring is sleeved with the movable rod; the movable rod can slide up and down along the axial direction of the movable tube; a limiting block is provided at the bottom of the movable tube, and a slider is provided at the top of the movable rod.

[0009] Preferably, there are four elastic telescopic wheels, which are symmetrically arranged at the bottom of the two long sides of the base frame.

[0010] Preferably, the fixing plate is a rectangular plate, and the fixing plate has several through holes, with expansion bolts installed in the through holes.

[0011] Preferably, the lifting ring is made of Ø18 round steel and welded to the basic frame as a whole.

[0012] Preferably, the base frame, legs, fixing plate and lifting ring are all provided with anti-rust coating.

[0013] This utility model discloses a reusable transformer base device for water conservancy tunnels, which has the following beneficial effects.

[0014] This utility model includes a basic frame, several support legs, a fixing plate, and lifting rings. The basic frame is a rectangular structure welded from 18# I-beams. The support legs are located at the four bottom corners of the frame and welded to the bottom. The fixing plate is welded to the bottom of the support legs. Furthermore, lifting rings are provided at the top of the basic frame for easy hoisting. The transformer can be safely placed on top of the basic frame, avoiding the use of brick or concrete foundations, thereby improving the reusability of the equipment and reducing engineering costs. The bottom of the basic frame is also equipped with elastic telescopic wheels, which allow the base to be moved after the transformer is removed, improving the flexibility of the device and showing good application prospects. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention.

[0016] Figure 2 This is a top view of the structure of this utility model.

[0017] Figure 3 This is a side view of the structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the fully compressed state of the elastic telescopic wheel.

[0019] Figure 5 This is a schematic diagram of the elastic telescopic wheel in its fully extended state.

[0020] Figure 6 for Figure 4 A magnified view of a portion of point A in the middle.

[0021] Figure 7 for Figure 6 A partial cross-sectional view of the flexible telescopic wheel.

[0022] Figure 8 for Figure 5 A magnified view of a portion of point B in the middle.

[0023] Figure 9 for Figure 8 A partial cross-sectional view of the flexible telescopic wheel.

[0024] In the attached diagram: 1. Basic frame; 2. Support leg; 3. Fixing plate; 4. Lifting ring; 5. Elastic telescopic wheel; 51. Movable tube; 52. Movable rod; 53. Spring; 54. Mounting base; 55. Wheel body; 56. Pin. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0027] Reference Figures 1 to 3 A reusable transformer base device for hydraulic tunnels includes: a base frame 1, several legs 2 at the bottom of the base frame 1, a fixing plate 3 at the bottom of the legs 2, and several lifting rings 4 at the top of the base frame 1. The base frame 1 is a rectangular frame, with the legs 2 located at the four bottom corners of the rectangular frame; the lifting rings 4 are located at the four top corners of the base frame 1. The transformer is placed on top of the base frame 1. This transformer base effectively solves the problems of installation, operation, and maintenance of transformers in hydraulic tunnels, eliminating the need for brick or concrete foundations, improving the reusability of the equipment, and reducing engineering costs.

[0028] In this embodiment, the base frame 1 is welded from 18# I-beams, the support leg 2 is welded to the bottom of the base frame 1, and the fixing plate 3 is welded to the bottom of the support leg 2.

[0029] Preferably, in this embodiment, the base frame 1 is provided with support legs 2 at the bottom center of both long sides to improve the load-bearing capacity of the transformer base.

[0030] Preferably, in this embodiment, the fixing plate 3 is a rectangular plate with several through holes. Expansion bolts are installed in the through holes and are connected to the foundation embedded parts.

[0031] Preferably, in this embodiment, the lifting ring 4 is made of Ø18 round steel and welded to the base frame 1 as a whole.

[0032] Preferably, in this embodiment, the base frame 1, the support leg 2, the fixing plate 3 and the lifting ring 4 are all provided with anti-rust coating to ensure that the device can be used for a long time in the humid, dark environment of the water conservancy tunnel where there may be certain corrosive media without serious rust and damage. Example 2

[0033] Based on Example 1, referring to Figures 4 to 9 Preferably, in this embodiment, the bottom of the base frame 1 is provided with several elastic telescopic wheels 5. The elastic telescopic wheel 5 includes: a movable tube 51, a movable rod 52 slidably connected to the movable tube 51, a mounting base 54 located at the bottom of the movable rod 52, a spring 53 whose upper end abuts against the bottom of the movable tube 51 and whose lower end abuts against the top of the mounting base 54, and a wheel body 55 rotatably connected to the bottom of the mounting base 54; the spring 53 is sleeved with the movable rod 52; the movable rod 52 can slide up and down along the axial direction of the movable tube 51; a limiting block is provided at the bottom of the movable tube 51, a slider is provided at the top of the movable rod 52, and the wheel body 55 is rotatably connected to the mounting base 54 through a pin 56, and the wheel body 55 and the pin 56 are connected by a bearing.

[0034] In this embodiment, when the transformer is placed on top of the foundation frame 1, please refer to... Figure 4 , 6 and Figure 7 When the spring 53 on the elastic telescopic wheel 5 is compressed, the movable rod 52 slides upward along the axis of the movable tube 51, and the lowest edge of the wheel body 55 is flush with the bottom of the fixed plate 3, at which time the transformer base cannot be moved.

[0035] When the transformer is separated from the foundation frame 1, remove the expansion bolts. Please refer to [the instructions]. Figure 5 , 8 and Figure 9 At this time, the spring 53 on the elastic telescopic wheel 5 extends, the movable rod 52 slides downward along the axis of the movable tube 51, and the lowest edge of the wheel body 55 exceeds the bottom of the fixed plate 3. At this time, the transformer base can be moved through the wheel body 55.

[0036] Preferably, in this embodiment there are four elastic telescopic wheels 5, which are symmetrically arranged at the bottom of the two long sides of the base frame 1.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A water conservancy tunnel reusable in-hole transformer base device, characterized in that, Include: Base frame (1), a plurality of legs (2) provided at the bottom of the base frame (1), a fixing plate (3) provided at the bottom of the leg (2), a plurality of lifting eyes (4) provided at the top of the base frame (1); The base frame (1) is a rectangular frame, and the plurality of legs (2) are arranged at the bottom of the four corners of the rectangular frame; The plurality of lifting eyes (4) are arranged at the top of the four corners of the base frame (1).

2. A water tunnel in-situ reusable transformer base apparatus as claimed in claim 1, wherein, The base frame (1) is provided with a leg (2) at the bottom center of the two long sides.

3. The water tunnel reusable in-tunnel transformer base apparatus according to claim 1 or 2, characterized in that, The base frame (1) is provided with a plurality of elastic telescopic wheels (5) at the bottom, the elastic telescopic wheel (5) comprises: a movable tube (51), a movable rod (52) connected with the movable tube (51) in sliding mode, a mounting seat (54) provided at the bottom of the movable rod (52), a spring (53) abutting against the bottom of the movable tube (51) at the upper end and abutting against the top of the mounting seat (54) at the lower end, and a wheel body (55) rotationally connected to the bottom of the mounting seat (54); The spring (53) is sleeved with the movable rod (52); The movable rod (52) can slide up and down along the movable tube (51) in the axial direction; The bottom of the movable tube (51) is provided with a limiting block, and the top of the movable rod (52) is provided with a sliding block.

4. The water tunnel reusable in-tunnel transformer base apparatus of claim 3, wherein, The elastic telescopic wheel (5) has four, and the four elastic telescopic wheels (5) are symmetrically arranged at the bottom of the two long sides of the base frame (1).

5. The water tunnel reusable in-tunnel transformer base apparatus of claim 1, wherein, The fixing plate (3) is a rectangular plate, and a plurality of through holes are arranged on the fixing plate (3), and expansion bolts are arranged in the through holes.

6. The water tunnel reusable in-tunnel transformer base apparatus of claim 1, wherein, The lifting eye (4) is welded with the base frame (1) by using Ø18 round steel.

7. The water tunnel reusable in-tunnel transformer base apparatus of claim 1, wherein, The base frame (1), the leg (2), the fixing plate (3) and the lifting eye (4) are all provided with an anti-rust coating outside.

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