Walking integrated switch box for tunnel construction

Abstract

The utility model belongs to the technical field of electrical equipment for tunnel construction, and discloses a walkable integrated switch box for tunnel construction, which comprises an electric power protection box for power distribution. The walking device is used for carrying the electric power protection box; the buffer cable clamping assembly comprises a rubber pad and a rubber clamping block, a plurality of semi-cylindrical lower grooves are formed in the upper surface of the rubber pad, and upper grooves matched with the lower grooves are formed in the lower surface of the rubber clamping block; the rubber clamping block is fixedly arranged on the walking device, the rubber pad is fixedly arranged on the walking device, the bottom wall of the electric power protection box is fixedly arranged on the upper surface of the rubber pad, the bottom edge of a box door of the electric power protection box and the bottom wall are provided with a U-shaped box body bottom opening, and the box body bottom opening corresponds to the multiple lower grooves. And the plurality of upper grooves and the plurality of lower grooves are spliced up and down to form a plurality of cable inlet and outlet holes through which cables penetrate and are tightly clamped. According to the utility model, the safety of pulling, moving and using the cable in the tunnel is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment for tunnel construction. More specifically, the utility model relates to a walkable integrated switch box for tunnel construction. Background Technique

[0002] During the tunnel construction process, the electrical operation area in the tunnel construction section progresses forward section by section and is relatively concentrated. The main electrical equipment includes construction lighting fixtures, electric welders, water pumps, concrete vibrators, etc. The power supply path of these electrical equipment usually connects from an external power source to a primary distribution box, a secondary distribution box to a switch box, and then to the electrical equipment. Due to the cross-operation between various processes, problems such as using one switch for multiple machines and unauthorized wiring in temporary construction electricity are likely to cause electrical safety problems and inconvenience in disassembly and assembly. In response, the prior art discloses a walkable integrated switch box for tunnel construction (publication number: CN118399222A), which arranges distribution boxes and multiple switch boxes in rows on a walking device, and each switch box is connected to the cable of an electrical equipment correspondingly, realizing one machine, one box, and one switch for temporary construction electricity, and can be moved as needed, increasing the safety and convenience of temporary electricity use in the tunnel. However, the cable inlets and outlets of the distribution box and the switch box are usually arranged at the bottom of the box body, making it not easy to穿设电缆 (thread the cable) and moisture-proof. When moving and using the integrated switch box in a tunnel with rich groundwater, the water content in the tunnel is high, the humidity is high, and moisture is easy to enter the box body from the cable inlets and outlets at the bottom of the distribution box and the switch box, affecting the use of components such as leakage protectors and isolating switches in the box body. Moreover, the cable wires passing through the cable inlets and outlets of the distribution box and the switch box are easily worn during frequent movement and dragging, and the cable terminal ends are easily detached, etc., which are likely to cause safety accidents such as short circuits and electric leakage in a humid tunnel and need to be improved urgently. Content of the Utility Model

[0003] An object of the utility model is to solve at least the above-mentioned defects and provide at least the advantages described later.

[0004] The utility model provides a walkable integrated switch box for tunnel construction. By opening a "匚"-shaped opening at the bottom edge of the box door of the power protection box together with the bottom wall, and fitting and clamping a rubber block on the opening at the bottom of the box body, the cable is tightly clamped on the cable inlet and outlet formed by the splicing of the rubber block and the rubber pad at the bottom of the power protection box, which is beneficial to preventing the humid air in the tunnel from entering the box body through the cable inlet and outlet, reducing the wear with the box body during frequent movement and dragging, reducing the problem of the wiring terminal being pulled off, and playing a role in buffering and protecting the walking of the power protection box, improving safety and practicability.

[0005] The walkable integrated switch box for tunnel construction provided by the utility model includes a power protection box for power distribution use, a walking device for carrying the power protection box, and further includes:

[0006] Buffer cable clamping assembly, which includes a rubber pad and a rubber clamping block. The upper surface of the rubber pad is provided with a plurality of semi-cylindrical lower grooves, and the lower surface of the rubber clamping block is provided with a plurality of semi-cylindrical upper grooves that match the plurality of lower grooves.

[0007] Among them, the rubber pad is fixedly arranged on the traveling device, the bottom wall of the power protection box is fixedly arranged on the upper surface of the rubber pad, and a "C"-shaped bottom opening of the box body is formed at the bottom edge of the box entrance of the power protection box together with the bottom wall. The bottom opening of the box body corresponds to the plurality of lower grooves. When the rubber clamping block is fitted and clamped on the bottom opening of the box body and the rubber clamping block is tightly connected to the rubber pad, the plurality of upper grooves and the plurality of lower grooves are spliced up and down to form a plurality of cable access holes for cable threading and tight clamping.

[0008] Preferably, one end of the plurality of semi-cylindrical lower grooves is open and faces the direction of the box entrance of the power protection box, and is inclined downward, and the other end is not open and faces the direction of the box back plate; both ends of the plurality of upper grooves are open, and the length of the lower groove is greater than the length of the upper groove.

[0009] Preferably, clamping plates are arranged on both sides of the bottom opening of the box body, and the rubber clamping block is tightly clamped between the two clamping plates; when the rubber clamping block is fitted and clamped on the two clamping plates at the bottom opening of the box body and the rubber clamping block is tightly connected to the rubber pad, one end of the rubber clamping block is placed outside the box, and the other end is placed inside the box.

[0010] Preferably, the space formed between the two clamping plates is an isosceles trapezoid with one end large and one end small. The large ends of the two clamping plates are located at the bottom edge of the box entrance, and the small ends of the two clamping plates are located inside the box.

[0011] Preferably, the upper surface of the rubber clamping block is an inclined surface. When the rubber clamping block is fitted and clamped on the bottom opening of the box body and the rubber clamping block is tightly connected to the rubber pad, the end of the inclined surface located outside the box is lower than the end located inside the box.

[0012] Preferably, it further includes a desiccant placement box, and the desiccant placement box is fixedly arranged inside the power protection box.

[0013] Preferably, the traveling device includes a mounting frame and a wheel set. The rubber pad is flatly and fixedly arranged on the mounting frame of the traveling device, and the wheel set is rotatably arranged below the mounting frame through a wheel axle frame.

[0014] Preferably, it further includes a plurality of wire hanging frames and a cross bar. The cross bar is used to fixedly connect the plurality of wire hanging frames, and the plurality of wire hanging frames are fixedly arranged on the mounting frame of the traveling device.

[0015] The utility model has at least the following beneficial effects:

[0016] First, the utility model opens a "C"-shaped opening at the bottom edge of the box door of the power protection box together with the bottom wall. A rubber block is clamped on the opening at the bottom of the box body. The cable is tightly clamped on the cable inlet and outlet hole formed by the splicing of the rubber block and the rubber pad at the bottom of the power protection box, which is beneficial to prevent the humid air in the tunnel from entering the box body through the cable inlet and outlet hole, reduce the abrasion with the box body during frequent movement and dragging, reduce the problem of the wiring terminal being pulled off, and play a role in buffering and protecting the walking of the power protection box, thus improving safety and practicability.

[0017] Second, when the rubber block is clamped on the opening at the bottom of the box body and is tightly connected with the rubber pad, one end of the rubber block is placed outside the box body and the other end is placed inside the box body. When the box door of the power protection box is closed on the box door opening, it is beneficial for the lower edge of the box door to press against the upper surface of the rubber block, promoting the pressing effect between the rubber block and the rubber pad, reducing the abrasion between the cable and the box body, reducing the problem of the cable terminal being pulled off due to the pulling force, and improving the safety of the cable during pulling and moving in the tunnel.

[0018] Third, clamping plates are arranged on both sides of the opening at the bottom of the box body, and the rubber block is tightly clamped between the two clamping plates. The large ends of the two clamping plates are located at the bottom edge of the box door opening, and the small ends of the two clamping plates are located inside the box body. This design can improve the tight connection effect between the rubber block and both sides of the opening at the bottom of the box body.

[0019] Fourth, a desiccant placement box is arranged inside the power protection box to place desiccants, improving the moisture-proof performance inside the power protection box and the safe use effect of power distribution.

[0020] Other advantages, objectives and features of the utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the utility model. Description of the Drawings

[0021] Figure 1 It is a schematic side structure diagram of an implementation form of the walkable integrated switch box for tunnel construction described in the utility model;

[0022] Figure 2 It is a schematic connection structure diagram of one of the switch boxes of the walkable integrated switch box for tunnel construction described in the utility model;

[0023] Figure 3 It is a schematic structure diagram of one of the switch boxes of the walkable integrated switch box for tunnel construction described in the utility model when the box door is opened;

[0024] Figure 4This is a schematic diagram of the structure of one of the switch boxes of the walkable integrated switch box for tunnel construction described in this utility model when the rubber clip is removed;

[0025] Figure 5 This is a schematic diagram of the structure of one of the mobile integrated switch boxes for tunnel construction described in this utility model when the buffer cable clamping assembly, mounting bracket and hanging bracket are removed.

[0026] The components include: 1. Mounting frame; 2. Wheel set; 3. Walking device; 4. Cable inlet / outlet hole; 5. Rubber clip; 6. Rubber pad; 7. Buffer cable clamping assembly; 8. Distribution box; 9. Switch box; 10. Hanging bracket; 11. Crossbar; 12. Box bottom opening; 13. Clamping plate; 14. Lower groove; 15. Upper groove; 16. Cable. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the embodiments, so that those skilled in the art can implement it based on the description.

[0028] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials described are commercially available. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model.

[0029] Figures 1-5 The implementation of a mobile integrated switch box for tunnel construction is shown, which includes a power protection box for power distribution, a walking device 3 for mounting the power protection box, and further includes:

[0030] The buffer cable clamping assembly 7 includes a rubber pad 6 and a rubber clamping block 5. The upper surface of the rubber pad 6 is provided with a plurality of semi-cylindrical lower grooves 14, and the lower surface of the rubber clamping block 5 is provided with a plurality of semi-cylindrical upper grooves 15 that match the plurality of lower grooves 14.

[0031] Among them, the rubber pad 6 is fixedly arranged on the traveling device 3, and the bottom wall of the power protection box is fixedly arranged on the upper surface of the rubber pad 6 (the bottom wall of the power protection box can be integrally formed or adhesively fixed with the upper surface of the rubber pad 6). A "C"-shaped bottom opening 12 of the box body is provided at the bottom edge of the box door opening of the power protection box together with the bottom wall. The bottom opening 12 of the box body corresponds to a plurality of the lower grooves 14. When the rubber clamping block 5 is fitted and clamped on the bottom opening 12 of the box body and the rubber clamping block 5 is tightly connected to the rubber pad 6, a plurality of the upper grooves 15 and a plurality of the lower grooves 14 are spliced up and down to form a plurality of cable inlet and outlet holes 4 for cable penetration and tight clamping. According to actual needs, the aperture diameters of the formed plurality of cable inlet and outlet holes 4 are the same as or slightly smaller than the outer diameters of common cables. If there are inapplicable situations during use, it can be adapted by winding tape or sealing tape at the position where the cable is clamped, so as to improve the sealing tightness effect; the plurality of cable inlet and outlet holes 4 can also be inlet and outlet holes with different aperture diameters for convenient selection and use.

[0032] The power protection box includes a distribution box 8 and four switch boxes 9. The distribution box 8 and the switch boxes can be installed in a row as a single unit. The distribution box 8 is connected to the external power supply for power distribution by tightly clamping the cable with the buffer cable clamping assembly 7. The distribution box 8 and the four switch boxes are pre-connected for power distribution. The bottom walls of the distribution box 8 and the four switch boxes are all fixed on the upper surface of the rubber pad 6. The four switch boxes are tightly clamped with the cable 16 by the buffer cable clamping assembly 7. After the cable 16 is pulled into place, it is connected to the lighting fixture, welding machine, water pump and concrete vibrator respectively, so as to realize the power supply of one machine, one box and one switch. In use, move the utility model, which has the rubber pad 6 and the power protection box fixed in place, to the designated location for later use. When it is necessary to connect electrical equipment, open the door of the power protection box (such as the door of the distribution box 8 or the switch box), pull the cable terminal of the cable 16 directly into the box from the door, and connect and secure the cable terminal to the components inside the box. Leave a certain length of cable between the cable terminal and the rubber pad 6 to avoid the cable pulling on the cable terminal. Then, clamp the cable in the lower groove 14 of the rubber pad 6, and then align the upper groove 15 of the rubber clamp 5 with the lower groove 14 of the rubber pad 6. The cable inlet / outlet hole 4 formed tightly clamps the cable 16. Use clamping or connecting parts to tightly connect the rubber clamp 5 and the rubber pad 6 (for example, use bolts or magnetic connections between the rubber clamp 5 and the rubber pad 6, or rely on the lower edge of the box door and the upper edge of the rubber clamp 5). (Surface pressure), the rubber clip 5 is tightly connected to both sides of the bottom opening 12 of the box (for example, the bottom opening 12 of the box is provided with clamps 13 on both sides, and the rubber clip 5 is clamped between the two clamps 13; the space formed between the two clamps 13 is an isosceles trapezoid with one end larger than the other, which can improve the tight connection effect between the rubber clip 5 and both sides of the bottom opening 12 of the box). The rubber clip 5 is matched and clamped on the bottom opening 12 of the box and the rubber clip 5 is tightly connected to the rubber pad 6. One end of the rubber clip 5 is placed outside the box and the other end is placed inside the box. Then the box door of the power protection box is closed on the box door. The lower edge of the box door is pressed against the upper surface of the rubber clip 5 to promote the tight connection between the rubber clip 5 and the rubber pad 6. Then the spare cable inlet and outlet hole 4 is sealed with a sealing plug to complete the cable connection. There is no need to bend down to pull and pull, which is convenient to operate and improves the safety of the cable pulling and moving in the tunnel. When it is necessary to disconnect the cable 16 from the power protection box, open the box door, remove the rubber clip 5, and the cable terminal and components inside the box can be removed and moved out. This operation is convenient, reduces wear between the cable and the box, reduces the problem of the cable terminal falling off due to pulling force, and improves the safety of the cable when pulled and moved in the tunnel.

[0033] Based on the above implementation, one end of the plurality of semi-cylindrical lower grooves 14 is open and faces the door of the power protection box, and is inclined downward at an angle of 5-10°, which is conducive to installation and waterproofing. The other end is closed and faces the back panel of the box. Both ends of the plurality of upper grooves 15 are open, and the length of the lower grooves 14 is greater than the length of the upper grooves 15, which is conducive to cable threading and tight clamping installation.

[0034] Based on the above implementation, clamping plates 13 are provided on both sides of the bottom opening 12 of the enclosure, and the rubber clamping block 5 is tightly clamped between the two clamping plates 13. When the rubber clamping block 5 is matched and clamped on the two clamping plates 13 of the bottom opening 12 of the enclosure and the rubber clamping block 5 is tightly connected with the rubber pad 6, one end of the rubber clamping block 5 is placed outside the enclosure and the other end is placed inside the enclosure. This design facilitates the lower edge of the enclosure door to press against the upper surface of the rubber clamping block 5 when the enclosure door is closed, promoting the pressing effect between the rubber clamping block 5 and the rubber pad 6, reducing wear between the cable and the enclosure, reducing the problem of cable terminals falling off due to pulling force, and improving the safety of the cable when pulled and moved in the tunnel.

[0035] Based on the above implementation, the space formed between the two clamps 13 is an isosceles trapezoid with one end larger than the other. The larger end of the two clamps 13 is located at the bottom edge of the box door, and the smaller end of the two clamps 13 is located inside the box. This design can improve the tight connection between the rubber block 5 and both sides of the bottom opening 12 of the box.

[0036] Based on the above implementation, the upper surface of the rubber block 5 is an inclined surface. When the rubber block 5 is matched and locked on the bottom opening 12 of the box and the rubber block 5 is tightly connected with the rubber pad 6, the end of the inclined surface outside the box is lower than the end inside the box. The inclination angle of the inclined surface can be 3-8°. This design facilitates the pressure effect between the lower edge of the box door and the upper surface of the rubber block 5 when the box door of the power protection box is closed, further improving the tight clamping and pressing effect between the rubber block 5 and the rubber pad 6.

[0037] Based on the above implementation, a desiccant placement box is also included. The desiccant placement box is fixed inside the power protection box and is used to place desiccants, such as activated carbon and calcium chloride, inside the desiccant placement box to improve the moisture prevention effect inside the power protection box and the safe use of power distribution.

[0038] Based on the above implementation, the walking device 3 includes a mounting frame 1 and a wheel set 2. The rubber pad 6 is flatly fixed on the mounting frame 1 of the walking device 3. The wheel set 2 usually has four wheels. The wheel set 2 is rotatably set under the mounting frame 1 through the wheel axle frame to realize the mobile use of carrying the power protection box.

[0039] Based on the above implementation, it also includes multiple cable hanging frames 10 and crossbars 11. The crossbars 11 are used to fix the multiple cable hanging frames 10 together. The multiple cable hanging frames 10 are fixed on the mounting frame 1 of the walking device 3 and are used to store and hang each cable on the cable hanging frame 10.

[0040] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be easily made by those skilled in the art.

Claims

1. A mobile integrated switch box for tunnel construction, comprising a power protection box for power distribution and a mobile device for mounting the power protection box, characterized in that, Further comprising: A buffer cable clamping assembly, which includes a rubber pad and rubber clamping blocks. The upper surface of the rubber pad is provided with a plurality of semi-cylindrical lower grooves, and the lower surface of the rubber clamping blocks is provided with a plurality of semi-cylindrical upper grooves matching the plurality of lower grooves; Wherein, the rubber pad is fixedly arranged on the walking device, the bottom wall of the power protection box is fixedly arranged on the upper surface of the rubber pad, and a "C"-shaped bottom opening of the box body is formed at the bottom edge of the box door opening of the power protection box together with the bottom wall. The bottom opening of the box body corresponds to the plurality of lower grooves, Clamping plates are arranged on both sides of the bottom opening of the box body, and the rubber clamping blocks are tightly clamped between the two clamping plates; The upper surface of the rubber clamping block is an inclined surface. When the rubber clamping block is matched and clamped on the bottom opening of the box body and the rubber clamping block is tightly connected to the rubber pad, the end of the inclined surface outside the box is lower than the end inside the box; When the rubber clamping block is matched and clamped on the bottom opening of the box body and the rubber clamping block is tightly connected to the rubber pad, the plurality of upper grooves and the plurality of lower grooves are spliced up and down to form a plurality of cable inlet and outlet holes for cable threading and tight clamping; The spare cable inlet and outlet holes are sealed by sealing plugs.

2. The mobile integrated switch box for tunnel construction as described in claim 1, characterized in that, One end of the plurality of semi-cylindrical lower grooves is open and faces the direction of the box door of the power protection box, and is inclined downward, and the other end is not open and faces the direction of the box back panel; both ends of the plurality of upper grooves are open, and the length of the lower grooves is greater than the length of the upper grooves.

3. The mobile integrated switch box for tunnel construction as described in claim 1, characterized in that, When the rubber clamping block is matched and clamped on the two clamping plates at the bottom opening of the box body and the rubber clamping block is tightly connected to the rubber pad, one end of the rubber clamping block is placed outside the box and the other end is placed inside the box.

4. The portable integrated switch box for tunnel construction as described in claim 3, characterized in that, The space formed between the two clamping plates is an isosceles trapezoid with one end large and one end small. The large ends of the two clamping plates are located at the bottom edge of the box door, and the small ends of the two clamping plates are located inside the box.

5. The mobile integrated switch box for tunnel construction as described in claim 1, characterized in that, Further comprising a desiccant placement box, which is fixedly arranged inside the power protection box.

6. The portable integrated switch box for tunnel construction as described in any one of claims 1-5, characterized in that, The walking device includes a mounting frame and a wheel set. The rubber pad is flatly and fixedly arranged on the mounting frame of the walking device, and the wheel set is rotationally arranged below the mounting frame through a wheel axle frame.

7. The mobile integrated switch box for tunnel construction as described in claim 6, characterized in that, Further comprising a plurality of wire hanging frames and a cross bar for fixedly connecting the plurality of wire hanging frames. The plurality of wire hanging frames are fixedly arranged on the mounting frame of the walking device.

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