Lightning protection device for overhead line

Abstract

The utility model discloses an overhead line lightning protection device, which comprises a fixed block, a sliding cavity is arranged on the upper side of an opening on one side of the fixed block, and an insertion block used for closing the opening is connected in the sliding cavity through a spring rod. The beneficial effects of the utility model lie in that when the device is used, the insertion block is moved upwards along the sliding cavity to open the opening on the fixed block, then the overhead line is positioned on the upper clamping block and the lower clamping block, and the insertion block is loosened at the same time, so that the insertion block is reset under the action of the spring rod; and then the upper clamping block moves downwards by rotating the rotating wheel and the adjusting screw rod, so that the device and the overhead line are quickly clamped and fixed under the action of the upper clamping block and the lower clamping block. And in addition, the defect that bolts and nuts for locking slip off and are lost is avoided, so that the installation efficiency of the device on the overhead line is improved, and the device can be conveniently and efficiently used.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection equipment, in particular to an overhead line lightning protection device. Background Art

[0002] Lightning protection refers to a protective technology that prevents direct lightning or lightning electromagnetic pulses from damaging the building itself or its internal equipment by forming an integrated system of interception, drainage and final discharge into the ground. Currently, lightning protection devices are required for lightning protection of overhead lines.

[0003] The Chinese patent with patent number CN201820791373.9 discloses an overhead line lightning protection device, including a bottom arc plate, a spring, a pressure rod, an arc plate, a rotating arc plate, a rubber plate, an arc plate, a pressure rod and a spring. The arc surface of the bottom arc plate is equipped with a pressure rod, a spring is installed at a lower end of the pressure rod, and the spring is fixed inside the bottom arc plate. An arc plate is installed at the upper end of the pressure rod, and the upper end of the arc plate fits with the lower side of the annular side of the overhead line body. Two rotating arc plates are symmetrically installed at the upper end of the bottom arc plate, a rubber plate is installed at the inner end of the rotating arc plate, and springs are fixed on the upper side of the rotating arc plate. A pressure rod is installed at the lower end of the spring, and arc plates are fixed at the lower end of the pressure rod, and the lower end of the arc plate fits with the upper side of the annular side of the overhead line body.

[0004] Although the overhead line lightning protection device described in the above patent can achieve reliable clamping of line bodies of different sizes according to actual use needs when in use, and avoid wear of the line body during use, the overhead line lightning protection device of the above structure is mainly fixed on the line body by passing the bolts through the rotating arc plate and then screwing the nuts. Since the device needs to be erected at high altitude when fixed, and the bolt and nut assembly is prone to falling during use, and an external screwing tool is required when screwing the nut, the fixing process of the device on the line body is relatively cumbersome, which makes the installation and fixing efficiency of the device relatively low during use, and is not convenient for efficient use of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is to provide an overhead line lightning protection device which can realize rapid installation and fixation of the device on the overhead line without the aid of external screwing tools in view of the current status of the prior art.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: the utility model proposes an overhead line lightning protection device, including a fixed block, a sliding cavity is provided on the upper side of an opening on one side of the fixed block, an insertion block for closing the opening is connected to the sliding cavity through a spring rod, a slot is provided on the fixed block at a position cooperating with the insertion block, a sliding groove is provided in the middle of the side wall opposite to the insertion block on the fixed block, a sliding block passes through the sliding groove, one end of the sliding block is connected to an upper clamping block for clamping the overhead line, the other end of the sliding block passes through an adjusting screw, a lower clamping block is installed in the fixed block below the upper clamping block, an adjusting frame is also fixed on the fixed block at the upper and lower ends of the adjusting screw, and the top of the adjusting screw is connected to a rotating wheel for convenient rotation of the adjusting screw.

[0009] Furthermore, the insert block is slidably connected to the sliding cavity, and both sides of the top of the insert block are provided with bosses extending out of the sliding cavity.

[0010] By adopting the above technical solution, the convenient sliding of the inserting block relative to the sliding cavity can be achieved by moving the boss on the inserting block.

[0011] Furthermore, the top end of the insert block is located at the spring rod and is a concave structure, and the spring rod is bolted to the sliding cavity and the insert block.

[0012] By adopting the above technical solution, the spring rod can realize the automatic resetting of the plug block after the external force is removed, so that the opening of the fixed block can be reliably closed when the plug block cooperates with the slot, thereby preventing the fixed block from accidentally falling off the overhead line during installation.

[0013] Furthermore, the adjusting frame is made of plastic, the adjusting screw is rotatably connected to the adjusting frame, and the rotating wheel is welded to the adjusting screw.

[0014] By adopting the above technical solution, the adjusting screw can be conveniently rotated by rotating the rotating wheel.

[0015] Furthermore, the adjusting screw is threadedly connected to the slider, and the bottom end of the upper clamping block and the upper end of the lower clamping block are both arc-shaped concave structures.

[0016] By adopting the above technical solution, after the adjusting screw is rotated, the upper clamping block can be moved downward under the cooperation of the sliding groove and the sliding block. After the upper clamping block moves downward, it can cooperate with the lower clamping block to clamp and fix the overhead line.

[0017] Furthermore, the bottom end of the lower clamping block is connected to a lightning protection insulating terminal, the lightning protection insulating terminal is provided with an arc-starting electrode ball and a resistor sheet, and the connecting column on the lightning protection insulating terminal passes through the bottom end of the fixed block.

[0018] By adopting the above technical solution, the lightning protection insulating terminal has the same structure as the lightning protection component in the application document with patent number CN201820791373.9.

[0019] Furthermore, a handle is bonded to the middle of the top of the fixing block, and both the fixing block and the handle are made of insulating plastic.

[0020] By adopting the above technical solution, the device can be conveniently moved by holding the handle.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In order to solve the problem that the existing overhead line lightning protection device can achieve reliable clamping of line bodies of different sizes according to actual use needs when in use, and avoid wear of the line body when in use, the overhead line lightning protection device of the above structure is mainly fixed on the line body by passing the bolt through the rotating arc plate and then screwing the nut to achieve the device fixation. Since the device needs to be erected at high altitude when fixed, and the bolt and nut assembly is easy to fall off when in use, and an external screwing tool is required when screwing the nut, the fixing process of the device on the line body is relatively cumbersome, and the installation and fixing efficiency of the device when in use is relatively low, which is not convenient for the device. In order to solve the problem of efficient use of the device, the utility model first moves the plug block upward along the sliding cavity when in use to open the opening on the fixing block, and then places the overhead line on the upper clamping block and the lower clamping block. At the same time, the plug block is loosened so that the plug block can be reset under the action of the spring rod, and then the upper clamping block is moved downward by rotating the rotating wheel and adjusting the screw, so that the device and the overhead line can be quickly clamped and fixed under the action of the upper and lower clamping blocks. Because the above-mentioned installation method not only effectively avoids the tedious operation of screwing with the help of external tools, but also avoids the disadvantage of the locking bolts and nuts slipping and losing, the installation efficiency of the device on the overhead line is improved, and the efficient use of the device is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an overhead line lightning protection device described in the utility model;

[0025] Figure 2 It is a front view of an overhead line lightning protection device described in the utility model;

[0026] Figure 3 It is a left sectional view of an overhead line lightning protection device described in the utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Handle; 2. Fixed block; 3. Sliding cavity; 4. Insert block; 5. Slot; 6. Lightning protection insulation terminal; 7. Lower clamping block; 8. Upper clamping block; 9. Sliding block; 10. Slide groove; 11. Adjusting frame; 12. Rotating wheel; 13. Spring rod; 14. Adjusting screw. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] like Figure 1-Figure 3 As shown, an overhead line lightning protection device in this embodiment includes a fixed block 2, a sliding cavity 3 is provided on the upper side of the opening on one side of the fixed block 2, a plug block 4 for closing the opening is connected to the sliding cavity 3 through a spring rod 13, a slot 5 is provided on the fixed block 2 at a position cooperating with the plug block 4, the spring rod 13 can realize the automatic reset of the plug block 4 after the external force is removed, so as to realize the reliable closure of the opening of the fixed block 2 under the cooperation of the plug block 4 and the slot 5, and avoid the fixed block 2 from accidentally falling off the overhead line during installation, a slide groove 10 is provided in the middle of the side wall of the fixed block 2 opposite to the plug block 4, and a slider 9 runs through the slide groove 10, One end of the slider 9 is connected to an upper clamping block 8 for clamping the overhead line, and the other end of the slider 9 is penetrated by an adjusting screw 14. A lower clamping block 7 is installed below the upper clamping block 8 in the fixed block 2. An adjusting frame 11 is also fixed on the fixed block 2 at the upper and lower ends of the adjusting screw 14. A rotating wheel 12 is connected to the top of the adjusting screw 14 for convenient rotation of the adjusting screw 14. Rotating the rotating wheel 12 can realize convenient rotation of the adjusting screw 14. After the adjusting screw 14 is rotated, the upper clamping block 8 can be moved downward with the cooperation of the slide groove 10 and the slider 9. After the upper clamping block 8 is moved downward, it can cooperate with the lower clamping block 7 to clamp and fix the overhead line.

[0031] like Figure 1-Figure 3 As shown, in this embodiment, the plug block 4 is slidably connected to the sliding cavity 3, and the two sides of the top of the plug block 4 are also provided with bosses extending out of the sliding cavity 3. The bosses on the plug block 4 can be moved to realize the convenient sliding of the plug block 4 relative to the sliding cavity 3. The top of the plug block 4 is located at the spring rod 13, which is a concave structure. The spring rod 13 is bolted to the sliding cavity 3 and the plug block 4. The adjustment frame 11 is made of plastic, the adjustment screw 14 is rotatably connected to the adjustment frame 11, the rotating wheel 12 is welded to the adjustment screw 14, and the adjustment screw 14 is threadedly connected to the slider 9. The bottom end of the upper clamping block 8 and the upper end of the lower clamping block 7 are both arc-shaped concave structures.

[0032] like Figure 1-Figure 3As shown, in this embodiment, a lightning protection insulating terminal 6 is connected to the bottom end of the lower clamping block 7. The lightning protection insulating terminal 6 is equipped with an arc-starting electrode ball and a resistor, and the connecting column on the lightning protection insulating terminal 6 passes through the bottom end of the fixed block 2. The lightning protection insulating terminal 6 has the same structure as the lightning protection component in the application document with patent number CN201820791373.9. When in use, the lightning protection insulating terminal 6 discharges the charge on the overhead line to achieve lightning protection for the overhead line. A handle 1 is also bonded to the middle part of the top of the fixed block 2. The fixed block 2 and the handle 1 are both made of insulating plastic. Holding the handle 1 can realize the convenient movement of the device.

[0033] The specific implementation process of this embodiment is as follows: when in use, first move the plug block 4 upward along the sliding cavity 3 to open the opening on the fixing block 2, and then make the overhead line be located on the upper clamping block 8 and the lower clamping block 7. At the same time, loosen the plug block 4 so that the plug block 4 can be reset under the action of the spring rod 13, and then the upper clamping block 8 is moved downward by rotating the rotating wheel 12 and the adjusting screw 14, so that the device and the overhead line can be quickly clamped and fixed under the action of the upper and lower clamping blocks 7. After installation, the overhead line lightning protection device can be put into use. When in use, the above-mentioned installation method not only effectively avoids the tedious operation of screwing with the help of external tools, but also avoids the disadvantage of the locking bolts and nuts slipping and losing, thereby improving the installation efficiency of the device on the overhead line and facilitating the efficient use of the device.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An overhead line lightning protection device, characterized in that: The invention comprises a fixed block (2), a sliding cavity (3) is provided on the upper side of an opening of one side of the fixed block (2), an inserting block (4) for closing the opening is connected to the sliding cavity (3) via a spring rod (13), a slot (5) is provided on the fixed block (2) at a position cooperating with the inserting block (4), a sliding groove (10) is provided in the middle of a side wall of the fixed block (2) opposite to the inserting block (4), a sliding block (9) runs through the sliding groove (10), and the sliding block (9) is provided in the sliding groove (10). 9) is connected to an upper clamping block (8) for clamping the overhead line at one end, an adjusting screw (14) is passed through the other end of the slider (9), a lower clamping block (7) is installed in the fixed block (2) below the upper clamping block (8), an adjusting frame (11) is fixed to the fixed block (2) at the upper and lower ends of the adjusting screw (14), and a rotating wheel (12) is connected to the top end of the adjusting screw (14) for realizing convenient rotation of the adjusting screw (14).

2. An overhead line lightning protection device according to claim 1, characterized in that: The insert block (4) is slidably connected to the slide cavity (3), and both sides of the top end of the insert block (4) are provided with bosses extending out of the slide cavity (3).

3. An overhead line lightning protection device according to claim 1, characterized in that: The top end of the insert block (4) is located at the spring rod (13) and is a concave structure; the spring rod (13) is bolted to the sliding cavity (3) and the insert block (4).

4. An overhead line lightning protection device according to claim 1, characterized in that: The adjusting frame (11) is made of plastic, the adjusting screw (14) is rotatably connected to the adjusting frame (11), and the rotating wheel (12) is welded to the adjusting screw (14).

5. The overhead line lightning protection device according to claim 1, characterized in that: The adjusting screw (14) is threadedly connected to the sliding block (9), and the bottom end of the upper clamping block (8) and the top end of the lower clamping block (7) are both arc-shaped concave structures.

6. An overhead line lightning protection device according to claim 1, characterized in that: The bottom end of the lower clamping block (7) is connected to a lightning protection insulating terminal (6), the lightning protection insulating terminal (6) is provided with an arc-starting electrode ball and a resistor sheet, and the connecting column on the lightning protection insulating terminal (6) passes through the bottom end of the fixed block (2).

7. An overhead line lightning protection device according to claim 1, characterized in that: A handle (1) is also bonded to the middle of the top of the fixing block (2); both the fixing block (2) and the handle (1) are made of insulating plastic.

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