A small horizontal combined hard shielding device

Abstract

The present invention discloses a small horizontal combined hard shielding device, wherein a movable slide plate 1 is arranged between two main beams, and its two opposite sides are respectively slidably connected with the corresponding sides of the two main beams, two movable slide plates 2 are provided, and are slidably connected with the two main beams, and a lifting assembly is installed on the upper surfaces of the two main beams, and a movable limit block is respectively installed on the upper surfaces of the movable slide plate 1 and the two movable slide plates 2, and three fixed limit blocks are provided, which are respectively fixed on one of the main beams, so that each fixed limit block is respectively in the same straight line with a corresponding movable limit block, and two support rods are provided, and the two ends of the support rods are respectively passed through the two main beams and fixed. When using this device for shielding, there will be no danger to the human body or the line, and the time for shielding installation and removal is effectively shortened, thereby improving work efficiency. When the operating electrician peels and overlaps each phase, an effective protective interval is formed with the adjacent phase, thereby achieving the purpose of improving quality and efficiency.

Description

Technical Field

[0001] The invention relates to a construction device for high-voltage live-line operation in an electric power system, in particular to a small horizontal combined hard shielding device. Background Art

[0002] At present, workers face the following problems when performing live work on 10KV lines: 1. In areas where the line structure is arranged in a small horizontal pattern, the length of the crossarm is usually around 85cm and the horizontal distance between phases is small, which increases the danger source for live work. If traditional insulating gloves are used, it is easy for the human body to be short-circuited between phases. 2. On small horizontal lines, even if traditional insulating gloves are used for direct work, the insulation shielding operation procedure is relatively cumbersome, and there is also the risk of short circuit during the insulation shielding process. If protection is carried out with an operating rod, it will take longer and increase the physical burden on the workers. Summary of the invention

[0003] Purpose of the invention: In view of the above problems, the purpose of the present invention is to provide a small horizontal combined hard shielding device to make the insulation shielding operation of live working more convenient and quick, and improve safety and work efficiency.

[0004] Technical solution: A small horizontal combined hard shielding device, including a main beam, a movable slide plate 1, a movable slide plate 2, a lifting assembly, a movable limit block, a fixed limit block, and a support rod. The main beams are provided with two, which are arranged parallel to each other and spaced apart. The movable slide plate 1 is arranged between the two main beams, and its opposite sides are respectively slidably connected to the corresponding one side of the two main beams. The movable slide plate 2 is provided with two, which are respectively slidably connected to the corresponding other side of the two main beams. The lifting assembly is installed on the upper surfaces of the two main beams, and the upper surfaces of the movable slide plate 1 and the two movable slide plates 2 are respectively installed with one movable limit block. The fixed limit blocks are provided with three, which are respectively fixed on one of the main beams, so that each fixed limit block is respectively in the same straight line with the corresponding one movable limit block. The support rods are provided with two, which are respectively arranged at the lower parts of the two ends of the main beams, and the two ends of the support rods are respectively passed through the two main beams and fixed.

[0005] When using this device for shielding operations, first use an insulated boom truck, hook the lifting handle through a rope buckle or an operating rod, and install the device on the energized main line. At this time, two support rods are straddled on the main line to support the entire device to reach above the main line. Use the insulated operating rod to hook the push-pull handle and move it in the direction of the line, so that the corresponding moving slide plate 1 or moving slide plate 2 moves, and the moving limit block moves with it. When it reaches the corresponding fixed limit block position, the corresponding moving slide plate 1 or moving slide plate 2 is limited to prevent excessive movement. After moving to the required position, the shielding operation is completed.

[0006] Furthermore, the main beam includes a crossbeam body and a connecting plate. The connecting plate is vertically arranged and integrally connected to the lower surface of the crossbeam body. Slide grooves are respectively provided on opposite sides of the length direction of the crossbeam body. A corresponding side edge of the movable slide plate one and a corresponding side edge of the movable slide plate two are respectively clamped in the two slide grooves, and the support rod is vertically penetrated in the connecting plate.

[0007] Furthermore, the cross-section of the slide groove is L-shaped, and the two opposite sides of the movable slide plate one and the corresponding side of the movable slide plate two are respectively provided with flanges, and each of the flanges is respectively clamped in the corresponding slide groove.

[0008] Furthermore, the cross section of the second movable slide plate is L-shaped.

[0009] Furthermore, the device also includes a push-pull handle, and a push-pull handle is respectively fixed to the upper surface of the movable slide plate 1 and the outer side surfaces of the two movable slide plates 2.

[0010] Furthermore, the lifting assembly includes a plurality of lifting handles, and at least two of the lifting handles are fixed at intervals on the upper surface of each main beam.

[0011] Beneficial effect: Compared with the prior art, the advantages of the present invention are: through the assembly and cooperation of the main beam and the mobile slide plate one and the mobile slide plate two, the shielding operation can be realized quickly and effectively, and the mobile structural design makes the shielding range larger, the shielding effect better and the adjustment convenient, making the live working insulation shielding operation more convenient and safer; when using this device for shielding, there will be no danger to either the human body or the line, and the time for shielding installation and removal is effectively shortened, thereby improving work efficiency. When the operating electrician peels and overlaps each phase, an effective protective interval is formed with the adjacent phase, thereby achieving the purpose of improving quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0013] Figure 2 for Figure 1 Enlarged view of I. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0015] A small horizontal combination hard shielding device, such as Figure 1 , 2As shown, it includes a main beam 1, a movable slide plate 1 2, a movable slide plate 2 3, a lifting assembly, a movable limit block 5, a fixed limit block 6, a support rod 7, and a push-pull handle 8. The lifting assembly includes multiple lifting handles 4. The main beam 1 includes a cross beam body 11 and a connecting plate 12. The connecting plate 12 is vertically arranged and integrally connected to the lower surface of the cross beam body 11.

[0016] There are two main beams 1, and the two main beams 1 are arranged parallel to each other and spaced apart. Two lifting handles 4 are fixed on the upper surface of each cross beam body 11 at least at intervals along its length direction. Slide grooves 111 are respectively opened on the opposite sides of the length direction of the cross beam body 11, and the cross section of the slide groove 111 is an inverted L-shape. The movable slide plate 2 is arranged between the two main beams 1, and the opposite sides of the length direction of the movable slide plate 2 are respectively provided with flanges matching the slide groove 111. The two flanges are respectively clamped in the slide grooves 111 corresponding to the two cross beam bodies 1, so that the opposite sides of the movable slide plate 2 are respectively slidably connected with the two main beams 1, and a movable limit block 5 is fixed in the middle of one side edge of the upper surface of the movable slide plate 2. Correspondingly, a fixed limit block 6 is fixed on the upper surface of one end of one of the cross beam bodies 11, so that it is in the same straight line as the movable limit block 5 on the movable slide plate 2.

[0017] There are two movable slides 23, and the cross-section of the movable slide 23 is L-shaped. One side of the movable slide 23 is also provided with a flange matching the slide groove 111. The flanges on the movable slide 23 are respectively clamped in the slide grooves 111 on the other side of the two beam bodies 11, so that the two movable slides 23 are respectively slidably connected with the corresponding main beam 1, and a movable limit block 5 is respectively fixed on the middle of one side of the upper surface of the two movable slides 23 close to the main beam 1, and a fixed limit block 6 is respectively fixed on the upper surface of one end of the corresponding beam body 11, so that the two groups of movable limit blocks 5 and the fixed limit blocks 6 correspond one by one to each other in a straight line, and the three fixed limit blocks 6 are located on the same side.

[0018] Two support rods 7 are horizontally arranged and arranged in parallel at the lower part of the two ends of the main beam 1. The two ends of the support rod 7 are respectively vertically penetrated into the two connecting plates 12 and have a certain distance from the crossbeam body 11. A push-pull handle 8 is fixed on the upper surface of the movable slide 2 and the outer side surfaces of the two movable slides 2 3.

[0019] The lateral span of the upper surface of the whole composed of the main beam, the movable slide plate 1 and the two movable slide plates 2 is 86cm to 88cm, thereby matching the cross arm length of the small horizontally arranged line structure, and the longitudinal span is 110cm to 150cm.

[0020] When using this device for shielding operations, first use an insulated boom truck, hook the lifting handle through a rope buckle or an operating rod, and install the device on the energized main line. At this time, two support rods are straddled on the main line to support the entire device to reach above the main line. Use the insulated operating rod to hook the push-pull handle and move it in the direction of the line, so that the corresponding moving slide plate 1 or moving slide plate 2 moves, and the moving limit block moves with it. When it reaches the corresponding fixed limit block position, the corresponding moving slide plate 1 or moving slide plate 2 is limited to prevent excessive movement. After moving to the required position, the shielding operation is completed.

[0021] When working on the side phase, move the corresponding mobile slide plate 2. At this time, the operating electrician must perform safe operations on the side phase conductor and effectively isolate it from the adjacent phase conductor. After the side phase operation is completed, use the insulating operating rod to restore the corresponding mobile slide plate 2 to its original state. This effectively isolates the position of the operating electrician. When working on the middle phase, move the mobile slide plate 1 away. At this time, it forms a closed interval with the two side phases. After the operation is completed, restore the mobile slide plate 1 to its original position. Use this method to work on the other side phase. After all the three-phase conductor operations are completed, move the insulated boom truck above the line and use a rope or insulating operating rod to lift the device away from the energized main line.

[0022] This device completely overcomes the problem of small phase-to-phase distance and limited working space in small horizontally arranged line structures, avoids the problem of touching adjacent phases during insulation shielding and live bonding, eliminates the need for coordinating insulation operating rod shielding operations, and greatly shortens the operation time.

[0023] By using this device, the dangerous points during insulation protection can be completely avoided. The operating electrician uses a hanging rope or an operating rod to install the device in place at one time above the center of the line, and the speed is fast. The position of the operating electrician maintains a large safe distance from the live body. During the operation, the mobile slide plate 1 and the mobile slide plate 2 can be pulled out and isolated flexibly, so that each phase is effectively closed and isolated from the adjacent phase when it is operated, which greatly increases the safety of the operating electrician. After all operations are completed, the device can be quickly dismantled at one time to avoid contact between the human body and the line, truly achieving operational safety, quality improvement, and efficiency improvement.

Claims

1. A small horizontal combined hard shielding device, characterized in that: The invention comprises a main beam (1), a movable slide plate 1 (2), a movable slide plate 2 (3), a lifting assembly, a movable limit block (5), a fixed limit block (6), and a support rod (7). The main beam (1) is provided with two movable limit blocks (5), which are arranged parallel to each other and spaced apart. The movable slide plate 1 (2) is arranged between the two main beams (1), and its two opposite sides are respectively slidably connected to the corresponding one side of the two main beams (1). The movable slide plate 2 (3) is provided with two movable limit blocks (5), which are respectively slidably connected to the corresponding other side of the two main beams (1). The lifting assembly is installed on the upper surfaces of the two main beams (1). The movable slide plate 1 (2) and the upper surfaces of the two movable slide plates 2 (3) are respectively provided with one movable limit block (5). The fixed limit blocks (6) are provided with three movable limit blocks (6), which are respectively fixed on one of the main beams (1), so that each fixed limit block (6) is respectively in the same straight line with a corresponding movable limit block (5). The support rod (7) is provided with two movable limit blocks (5). The main beam (1) comprises a cross beam body (11) and a connecting plate (12). The connecting plate (12) is vertically arranged and connected to the lower surface of the cross beam body (11) in an integral manner. The cross beam body (11) is provided with slide grooves (111) on opposite sides in the length direction. The corresponding side edge of the movable slide plate (2) and the corresponding side edge of the movable slide plate (3) are respectively clamped in the two slide grooves (111). The support rod (7) is vertically penetrated in the connecting plate (12). The cross beam (111) has an L-shaped cross section. The opposite side edges of the movable slide plate (2) and the corresponding side edge of the movable slide plate (3) are respectively provided with flanges. Each flange is respectively clamped in the corresponding slide groove (111). The cross section of the movable slide plate (3) is L-shaped.

2. A small horizontal combined hard shielding device according to claim 1, characterized in that: It also comprises a push-pull handle (8), and a push-pull handle (8) is respectively fixed to the upper surface of the movable slide plate 1 (2) and the outer side surfaces of the two movable slide plates 2 (3).

3. A small horizontal combined hard shielding device according to claim 1, characterized in that: The lifting assembly comprises a plurality of lifting handles (4), and at least two of the lifting handles (4) are fixed at intervals on the upper surface of each main beam (1).

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