Explosion-proof box for high-voltage cable intermediate joint

Abstract

The utility model relates to the technical field of power transmission and distribution discloses high -voltage cable middle joint explosion -proof box, including the upper cover body, both sides of the outside of upper cover body all are fixedly connected with side plate no.

Description

Technical Field

[0001] This utility model relates to the field of power transmission and distribution technology, and in particular to explosion-proof boxes for intermediate joints of high-voltage cables. Background Technology

[0002] High-voltage cables are cables used to transmit high-voltage electricity. They are commonly used in power transmission systems, especially for long-distance power transmission between power plants and substations, and between substations and distribution networks. Compared with ordinary low-voltage cables, high-voltage cables have higher requirements for insulation materials and structure to ensure that they can safely withstand high voltage and avoid electrical leakage.

[0003] Explosion-proof boxes for high-voltage cable joints are protective devices used at the joints of high-voltage cables. They are mainly used to prevent dangers such as sparks and explosions caused by cable faults. During operation, the explosion-proof box can effectively seal the electrical connection at the joint, preventing electrical sparks and arcs from leaking into the external environment, thereby reducing the risk of electrical equipment explosions. They are usually made of materials that are resistant to high voltage, corrosion, and have good insulation properties, and are waterproof, dustproof, and high-temperature resistant, ensuring reliable operation in harsh environments.

[0004] In existing technologies, the positioning structure of some explosion-proof boxes has poor stability, which can easily lead to displacement during installation, resulting in repeated installations, which seriously affects installation efficiency and makes it difficult to achieve standardized and rapid installation. This fails to meet the urgent needs of power engineering for construction efficiency and safety. Therefore, in order to address the above shortcomings, a high-voltage cable intermediate joint explosion-proof box is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an explosion-proof box for high-voltage cable intermediate joints, which aims to improve the problem that some explosion-proof boxes in the prior art cannot be quickly positioned and installed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-voltage cable intermediate joint explosion-proof box includes an upper cover, with side plates fixedly connected to both sides of the upper cover. A lower cover is placed at the bottom of the upper cover in a static state. An assembly mechanism is fixedly connected to both the left and right sides of the lower cover, and a fixing mechanism is fixedly connected to the bottom of the lower cover.

[0008] The assembly mechanism includes two limiting side plates. The two limiting side plates are fixedly connected to the left and right sides of the outside of the lower cover. The upper cover and the lower cover are fixedly connected to the two ends of the inside. The top left and right sides of the lower cover are fixedly connected to sealing strips. The limiting side plates are threaded with multiple bolts.

[0009] As a further description of the above technical solution:

[0010] The fixing mechanism includes two fixing blocks. The fixing blocks are internally fixedly connected to the bottom of the lower cover. The fixing blocks are internally threaded with threaded posts. The bottom of the threaded posts is fixedly connected with a transmission component. The fixing blocks are internally slidably connected with two sliding plates. The bottom of the sliding plates is fixedly connected with a connecting plate. Protective pads are fixedly connected to the adjacent sides of the two connecting plates.

[0011] As a further description of the above technical solution:

[0012] The sealing assembly includes a sealing ring, the outer side of which is fixedly connected to the inner ends of the upper cover and the lower cover, and the inner ends of the upper cover and the lower cover are fixedly connected with sealing rings.

[0013] As a further description of the above technical solution:

[0014] The transmission assembly includes a perforated plate, the top of which is fixedly connected to the bottom of the threaded post, and a connecting post is slidably connected to the internal groove of the perforated plate.

[0015] As a further description of the above technical solution:

[0016] The top of the sliding plate is slidably connected to the bottom of the connecting column, and the inside of the fixing block is rotatably connected to the outside of the perforated plate;

[0017] As a further description of the above technical solution:

[0018] The outer side plate is slidably connected to the inside of the limiting side plate, and the bottom of the sealing strip is placed on the top of the sealing strip when the plate is stationary.

[0019] As a further description of the above technical solution:

[0020] The interior of the first side plate has multiple circular holes, which are consistent with the circular holes on the surface of the limiting side plate. The interior of the first side plate is threaded to the outside of the bolt.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the explosion-proof box is pre-fixed by sliding the side plates on both sides of the upper cover into the limiting side plates on both sides of the lower cover, which facilitates the subsequent fixing of the upper and lower parts by tightening the bolts. In addition, sealing rings and sealing rings are provided at both ends inside the upper and lower covers to prevent wear and seal the cables inside the explosion-proof box, thus achieving the effect of rapid installation.

[0023] 2. In this utility model, the rotating threaded column drives the perforated plate to rotate, and a connecting column is placed in the hole of the perforated plate. Since the connecting column is connected to the sliding plate, the connecting column drives the sliding plate to slide towards the center under the limiting rotation of the perforated plate, thereby additionally fixing the explosion-proof box to the outside and improving the safety and stability of the explosion-proof box. Attached Figure Description

[0024] Figure 1 This is a perspective view of the explosion-proof box for the intermediate joint of the high-voltage cable proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the limiting side plate of the explosion-proof box for the intermediate joint of the high-voltage cable proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the side plate of the explosion-proof box for the high-voltage cable intermediate joint proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the fixing block structure of the explosion-proof box for the high-voltage cable intermediate joint proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the sliding plate structure of the explosion-proof box for the intermediate joint of the high-voltage cable proposed in this utility model.

[0029] Legend:

[0030] 1. Upper cover; 2. Side plate 1; 3. Sealing ring; 4. Sealing ring; 5. Lower cover; 6. Sealing strip; 7. Limiting side plate; 8. Bolt; 9. Fixing block; 10. Threaded post; 11. Hole plate; 12. Connecting post; 13. Sliding plate; 14. Connecting plate; 15. Protective pad. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3This utility model provides an embodiment of a high-voltage cable intermediate joint explosion-proof box, including an upper cover 1, which is the upper structure of the explosion-proof box. The surface is treated with anti-rust treatment, providing good stability and durability. Side plates 2 are fixedly connected to both sides of the upper cover 1. The side plates 2 are rectangular plates made of high-strength aluminum alloy to enhance the stability of the structure. The outside of the side plates 2 are slidably connected to the inside of the limiting side plate 7. The bottom of the sealing strip 6 is placed on top of the sealing strip 6 when stationary. Multiple circular holes are opened inside the side plates 2, which are connected to the surface of the limiting side plate 7. The circular holes on the surface are consistent and used for the connection of bolts 8. The internal thread of side plate 2 is connected to the outside of bolts 8. The bottom of the upper cover 1 is placed with the lower cover 5 in a static state. The lower cover 5 is the lower structure of the explosion-proof box and is used to cooperate with the upper cover 1 to form a sealed explosion-proof space. The lower cover 5 is fixedly connected to the left and right sides of the outside. The assembly mechanism includes two limiting side plates 7. The limiting side plates 7 are rectangular plates and are used to limit the sliding range of side plate 2 to ensure the accuracy of assembly. The adjacent sides of the two limiting side plates 7 are fixedly connected to the left and right sides of the outside of the lower cover 5.

[0033] Sealing components are fixedly connected to the inner ends of the upper cover 1 and the lower cover 5. The sealing components include a sealing ring 3, which is circular in shape and made of high-temperature and corrosion-resistant rubber material to prevent gas or liquid leakage. The sealing ring 3 is externally fixedly connected to the inner ends of the upper cover 1 and the lower cover 5. Sealing rings 4 are fixedly connected to the inner ends of the upper cover 1 and the lower cover 5. Sealing rings 4 are circular in shape and made of the same material as sealing rings 3 to further enhance the sealing effect. Sealing strips 6 are fixedly connected to the top left and right sides of the lower cover 5. Sealing strips 6 are rectangular in shape and are used to fill the gap between the upper cover 1 and the lower cover 5 to ensure sealing. Multiple bolts 8 are internally threaded to the limiting side plate 7. The upper cover 1 and the lower cover 5 are fixed and sealed by the threaded connection of the bolts 8 to the side plate 2.

[0034] Reference Figure 1 , Figure 4 and Figure 5The bottom of the lower cover 5 is fixedly connected to a fixing mechanism, which includes two fixing blocks 9. The fixing blocks 9 are rectangular blocks used to support and fix the threaded posts 10. The fixing blocks 9 are internally fixedly connected to the bottom of the lower cover 5. The threaded posts 10 are cylindrical and used to transfer and fix the position of the explosion-proof box. A transfer assembly is fixedly connected to the bottom of the threaded posts 10. The transfer assembly includes a perforated plate 11, which is rectangular. The top of the perforated plate 11 is fixedly connected to... A connecting post 12 is slidably connected to the bottom of the threaded post 10 and the inner groove of the perforated plate 11. This is used to connect and fix the bottom structure of the explosion-proof box. Two sliding plates 13 are slidably connected inside the fixing block 9. The sliding plates 13 are rectangular in shape. A connecting plate 14 is fixedly connected to the bottom of the sliding plates 13. The connecting plate 14 is used to support and fix the protective pad 15. Protective pads 15 are fixedly connected to the adjacent sides of the two connecting plates 14. The protective pads 15 are rectangular in shape and are used to protect the bottom of the explosion-proof box to prevent wear and damage.

[0035] Working principle: First, slide the side plates 2 on both sides of the upper cover 1 along the inner wall of the limiting side plate 7 of the lower cover 5. Pre-fixing is achieved by aligning the holes of the two. Then, the sealing ring 3 and sealing ring 4 are respectively embedded into the inner ends of the upper cover 1 and the lower cover 5. At the same time, the sealing strip 6 fills the mating surface of the upper and lower covers 5 to complete the assembly of the sealing components. Then, the bolts 8 are passed through the corresponding holes of the side plate 2 and the limiting side plate 7 and tightened to form a rigid connection between the upper and lower covers 5.

[0036] Subsequently, the rotating threaded column 10 drives the perforated plate 11 to rotate, forcing the connecting column 12 to move along the hole trajectory, thereby driving the sliding plate 13 to slide synchronously towards the center within the fixed block 9, so that the protective pad 15 at the end of the connecting plate 14 clamps the external structure, achieving secondary fixation.

[0037] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-voltage cable intermediate joint explosion-proof box, including an upper cover (1), characterized in that: Side plates (2) are fixedly connected to both sides of the upper cover (1). The lower cover (5) is placed at the bottom of the upper cover (1) in a static state. Assembly mechanisms are fixedly connected to both the left and right sides of the lower cover (5). A fixing mechanism is fixedly connected to the bottom of the lower cover (5). The assembly mechanism includes two limiting side plates (7), with one side of the two limiting side plates (7) fixedly connected to the left and right sides of the outside of the lower cover (5). The upper cover (1) and the lower cover (5) are fixedly connected to sealing components at both ends inside. The top left and right sides of the lower cover (5) are fixedly connected to sealing strips (6). The limiting side plates (7) are threaded with multiple bolts (8).

2. The explosion-proof box for high-voltage cable intermediate joints according to claim 1, characterized in that: The fixing mechanism includes two fixing blocks (9). The fixing blocks (9) are internally fixedly connected to the bottom of the lower cover (5). The fixing blocks (9) are internally threaded with threaded posts (10). The bottom of the threaded posts (10) is fixedly connected with a transmission component. The fixing blocks (9) are internally slidably connected with two sliding plates (13). The bottom of the sliding plates (13) is fixedly connected with connecting plates (14). Protective pads (15) are fixedly connected to the adjacent sides of the two connecting plates (14).

3. The explosion-proof box for high-voltage cable intermediate joints according to claim 1, characterized in that: The sealing assembly includes a sealing ring (3), the outer side of which is fixedly connected to the inner ends of the upper cover (1) and the lower cover (5), and the inner ends of the upper cover (1) and the lower cover (5) are fixedly connected with sealing rings (4).

4. The explosion-proof box for high-voltage cable intermediate joints according to claim 2, characterized in that: The transmission assembly includes a perforated plate (11), the top of which is fixedly connected to the bottom of the threaded post (10), and a connecting post (12) is slidably connected to the inner groove of the perforated plate (11).

5. The explosion-proof box for high-voltage cable intermediate joints according to claim 4, characterized in that: The top of the sliding plate (13) is slidably connected to the bottom of the connecting column (12), and the interior of the fixing block (9) is rotatably connected to the exterior of the perforated plate (11).

6. The explosion-proof box for high-voltage cable intermediate joints according to claim 1, characterized in that: The outside of the side plate (2) is slidably connected to the inside of the limiting side plate (7), and the bottom of the sealing strip (6) is placed on the top of the sealing strip (6) when at rest.

7. The explosion-proof box for high-voltage cable intermediate joints according to claim 1, characterized in that: Multiple circular holes are opened inside the side plate (2), which are consistent with the circular holes opened on the surface of the limiting side plate (7). The internal thread of the side plate (2) is connected to the outside of the bolt (8).

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