Armored cable crossing burying protection device

Abstract

The utility model discloses an armored cable crossing burying protection device which comprises a left lower side plate, a right lower side plate and an inner arc-shaped plate, the concave surface of the inner arc-shaped plate faces downwards, the left lower side plate and the right lower side plate are symmetrically arranged on the left side and the right side of the inner arc-shaped plate, the upper side of the left lower side plate is hinged to the straight edge of the left side of the inner arc-shaped plate, and the lower side of the right lower side plate is hinged to the straight edge of the right side of the inner arc-shaped plate. The upper side of the right lower side plate is hinged to the right straight edge of the inner arc-shaped plate, the lower side edge of the left lower side plate is detachably connected with the lower side edge of the right lower side plate through a buckle, and the armored cable buried in a penetrating mode penetrates through an inner cavity of a protection pipe defined by the left lower side plate, the right lower side plate and the inner arc-shaped plate. According to the utility model, the protection tube with the fan-shaped section of the inner cavity is adopted, so that the deformation resistance of the protection device is greatly improved, and the service life of the protection device is prolonged; and the lower side edges of the left lower side plate and the right lower side plate are detachably connected, so that the replacement difficulty of the protection device is reduced, the maintenance efficiency is greatly improved, and normal operation of mine production can be ensured.

Description

Technical Field

[0001] The utility model relates to an armored cable routing buried protection device which has a long service life and is easy to replace, and belongs to the technical field of mining equipment. Background Art

[0002] All large equipment used in open-pit mines need to be connected to high-voltage poles through armored high-voltage cables. Affected by the mining environment, especially the open-pit mining field roads, blasting and drilling, and the working space of shoveling equipment, high-voltage armored cables need to cross the mining field roads. Originally, the armored cables were only buried under the mining field roads. Since most mining equipment is large machinery, the armored cables are crushed during the movement of the equipment. In the long run, the armored cables are damaged, affecting the normal power supply of electrical equipment. In order to protect the high-voltage armored cable, the existing method is to set a circular protective iron pipe on the outside of the cable to protect the cable from being crushed. However, the circular protective iron pipe will be deformed by long-term crushing, and the iron pipe is easy to rust in the underground humid environment, which reduces the compression and deformation resistance, resulting in a short service life of the iron pipe. It is very difficult to replace the iron pipe, and the maintenance efficiency is low, which will seriously affect the normal production of the mine. Therefore, it is very necessary to design an armored cable protection device with a long service life and easy replacement. Utility Model Content

[0003] The purpose of the utility model is to provide an armored cable buried protection device to improve the deformation resistance of the protection device, extend its service life, reduce the difficulty of replacement, improve maintenance efficiency, and ensure the normal operation of mine production.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A protective device for armored cable routing and burial, comprising a left lower side plate, a right lower side plate and an inner arc plate, the concave surface of the inner arc plate facing downward, the left lower side plate and the right lower side plate being symmetrically arranged on the left and right sides of the inner arc plate, the upper side of the left lower side plate being hinged to the left straight side of the inner arc plate, the upper side of the right lower side plate being hinged to the right straight side of the inner arc plate, the lower side edge of the left lower side plate being detachably connected to the lower side edge of the right lower side plate by a buckle, and the buried armored cable passes through an inner cavity of a protective tube surrounded by the left lower side plate, the right lower side plate and the inner arc plate.

[0006] The above-mentioned armored cable routing buried protection device has an outer arc plate and a plurality of springs disposed above the inner arc plate, the concave surface of the outer arc plate faces downward, the left straight edge and the right straight edge of the outer arc plate are gathered inward and respectively wrap the upper straight edge of the left lower side plate and the upper straight edge of the right lower side plate, and the plurality of springs are evenly distributed in a buffer space surrounded by the left lower side plate, the right lower side plate, the inner arc plate and the outer arc plate, the upper end of each spring is connected to the outer arc plate, and the lower end is connected to the inner arc plate.

[0007] The above-mentioned armored cable buried protection device has insulating rubber plugs at both ends of the protection tube surrounded by the lower left side plate, the lower right side plate and the inner arc plate, a threading hole matching the armored cable is opened in the center of the plug, and a straight slit connected to the threading hole is provided on one side of the plug.

[0008] In the above-mentioned armored cable buried protection device, both ends of the outer arc-shaped plate are provided with arc-shaped curved parts that converge inwards, and the arc-shaped curved parts are spliced ​​with the upper edge of the insulating rubber plug.

[0009] In the above-mentioned armored cable buried protection device, the upper side of the left lower side plate and the left straight edge of the inner arc plate, and the upper side of the right lower side plate and the right straight edge of the inner arc plate are both hinged by hinges.

[0010] In the armored cable buried protection device, the lower left side plate, the lower right side plate and the inner wall of the inner arc plate are all adhered with an insulating rubber protective layer.

[0011] In the above-mentioned armored cable routing buried protection device, the material of the lower left side plate, the lower right side plate, the inner arc plate and the outer arc plate is high-strength alloy steel.

[0012] The utility model adopts a protection tube with a fan-shaped inner cavity section, which greatly improves the deformation resistance of the protection device and prolongs the service life of the protection device; the lower side edges of the left lower side plate and the right lower side plate are detachably connected, which reduces the difficulty of replacing the protection device, greatly improves the maintenance efficiency, and can ensure the normal operation of mining production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is an opening state diagram of the utility model.

[0016] The numbers in the figure are as follows: 1. Lower left side panel; 2. Lower right side panel; 3. Inner arc plate; 4. Folding leaf; 5. Outer arc plate; 6. Spring; 7. Buckle; 8. Cable. DETAILED DESCRIPTION

[0017] The utility model aims at the problems existing in the prior art and provides an armored cable routing buried protection device, which improves the pressure resistance and shortens the maintenance and replacement operation cycle by changing the structure and shape of the protection tube, is not easy to rust and deform, and has a long service life.

[0018] See also Figure 1The utility model mainly includes a left lower side plate 1, a right lower side plate 2, an inner arc plate 3, an outer arc plate 5 and a spring 6. The upper side of the left lower side plate 1 and the upper side of the right lower side plate 2 are respectively hinged with the left straight edge and the right straight edge of the inner arc plate 3 through a hinge 4. The lower side of the left lower side plate 1 is connected with the lower side of the right lower side plate 2 through a buckle 7. The inner arc plate 3, the right lower side plate 2 and the left lower side plate 1 constitute a protective tube with a fan-shaped inner cavity section, and the armored cable 8 is inserted into the protective tube. Both ends of the protective tube are plugged with insulating rubber plugs, and a threading hole is opened in the center of the plug. A straight slit connected to the threading hole is provided on the side of the plug. The plug is put on the cable 8 through the straight slit to prevent sand and soil impurities from entering the protective tube and causing wear on the cable 8 when rolling and stressing. The buckle 7 structure is a prior art, which can realize the connection between the left lower side plate and the right lower side plate.

[0019] A plurality of springs 6 are fixedly connected to the outer side of the inner arc plate 3, and the upper ends of the springs 6 are connected to the inner side of the outer arc plate 5. The left and right straight edges of the outer arc plate 5 are gathered inward, so that the upper straight edges of the left lower plate 1 and the right lower plate 2 are inserted and wrapped in the gathered edges on both sides of the outer arc plate 5. A buffer space is formed between the left lower plate 1, the right lower plate 2, the inner arc plate 3 and the outer arc plate 5. The springs 6 are sealed in the buffer space, and soil impurities will not enter to affect the expansion and contraction of the springs 6. When the outer arc plate 5 is subjected to downward rolling pressure, the contact between the outer arc plate 5 and the left lower plate 1 and the right lower plate 2 will be closer, and the left lower plate 1 and the right lower plate 2 will play a certain supporting role on the outer arc plate 5, thereby increasing the buffer effect. The two ends of the outer arc plate 5 are fixed with arc-shaped curved parts that are gathered inward, and the arc-shaped curved parts are spliced ​​with the upper edge of the insulating rubber plug to seal the ends of the buffer space.

[0020] The left lower side plate 1, the right lower side plate 2, the inner arc plate 3, and the outer arc plate 5 of the protection device are made of high-strength alloy steel, with a firm structure and a long service life. The inner walls of the left lower side plate 1, the right lower side plate 2, and the inner arc plate 3 are all adhered with an insulating rubber protective layer to prevent leakage.

[0021] like Figure 2 As shown, when in use, open the buckle 7 and rotate the left lower side plate 1 and the right lower side plate 2 outwards to form an opening, insert the armored cable 8, then close the left lower side plate 1 and the right lower side plate 2 and plug the plug, and finally fix it with the buckle 7. The device is buried in the soil under the mining field road, with the outer arc plate 5 facing upward.

[0022] The device designs the lower part of the protective tube to be a structure similar to a horizontal triangular prism. When the protective tube is crushed, the downward sharp edges are conducive to the protective tube being pressed and moving downward. The protective tube as a whole produces a buffer for the downward movement, reducing damage to the armored cable 8 in the protective tube, and the triangular structure is more stable and not easy to deform. The upper part of the device is an arc structure with a buffer space. When the protective tube is crushed, the outer arc plate 5 squeezes the spring 6, and the spring 6 plays a certain buffering role, reducing the squeezing of the armored cable 8 by external force.

Claims

1. An armored cable buried protection device, characterized in that: The invention comprises a left lower side plate (1), a right lower side plate (2) and an inner arc plate (3), wherein the concave surface of the inner arc plate (3) faces downwards, the left lower side plate (1) and the right lower side plate (2) are symmetrically arranged on the left and right sides of the inner arc plate (3), the upper side of the left lower side plate (1) is hinged to the left straight side of the inner arc plate (3), the upper side of the right lower side plate (2) is hinged to the right straight side of the inner arc plate (3), the lower side of the left lower side plate (1) and the lower side of the right lower side plate (2) are detachably connected via a buckle (7), and the buried armored cable (8) passes through the inner cavity of the protective tube surrounded by the left lower side plate (1), the right lower side plate (2) and the inner arc plate (3).

2. The armored cable buried protection device according to claim 1 is characterized in that: An outer arc plate (5) and a plurality of springs (6) are provided above the inner arc plate (3); the concave surface of the outer arc plate (5) faces downwards; the left straight edge and the right straight edge of the outer arc plate (5) are gathered inwards and respectively wrap around the upper straight edge of the left lower side plate (1) and the upper straight edge of the right lower side plate (2); the plurality of springs (6) are evenly distributed in a buffer space surrounded by the left lower side plate (1), the right lower side plate (2), the inner arc plate (3) and the outer arc plate (5); the upper end of each spring (6) is connected to the outer arc plate (5), and the lower end is connected to the inner arc plate (3).

3. The armored cable buried protection device according to claim 2 is characterized in that: Both ends of the protective tube formed by the lower left side plate (1), the lower right side plate (2) and the inner arc plate (3) are plugged with insulating rubber plugs, a threading hole matching the armored cable (8) is provided at the center of the plug, and a slot communicating with the threading hole is provided on one side of the plug.

4. The armored cable buried protection device according to claim 3 is characterized in that: Both ends of the outer arc-shaped plate (5) are provided with an inwardly contracted arc-shaped curved portion, and the arc-shaped curved portion is spliced ​​with the upper edge of the insulating rubber plug.

5. The armored cable buried protection device according to claim 4 is characterized in that: The upper side of the left lower side plate (1) and the left straight edge of the inner arc plate (3), as well as the upper side of the right lower side plate (2) and the right straight edge of the inner arc plate (3) are both hingedly connected via hinges (4).

6. The armored cable buried protection device according to claim 5 is characterized in that: The inner walls of the left lower side plate (1), the right lower side plate (2) and the inner arc plate (3) are all adhered with an insulating rubber protective layer.

7. The armored cable buried protection device according to claim 6 is characterized in that: The left lower side plate (1), the right lower side plate (2), the inner arc plate (3) and the outer arc plate (5) are made of high-strength alloy steel.

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