Lightning protection device convenient to install and used for low-voltage power grid protection

Abstract

The utility model relates to the technical field of low-voltage power grid accessory devices, in particular to a lightning protection device convenient to install for low-voltage power grid protection, when the lightning protection device is damaged after being used for a long time, a worker can quickly disassemble and maintain a lightning protection assembly, so that the working efficiency and effect of protecting a low-voltage power grid are improved, and the safety of the low-voltage power grid is ensured. The power grid comprises a power grid body and further comprises a mounting block, two sets of connecting screw rods, two sets of first sliding blocks, two sets of clamping plates, two sets of first clamping blocks, a fixing block, a connecting plate, a lightning protection assembly and a connecting assembly, the top of the power grid body is connected with the bottom of the mounting block, and the left end and the right end of a groove of the mounting block are each provided with a set of threaded holes; the two connecting screws are in threaded connection with one ends of the grooves of the mounting blocks through the threaded holes respectively, one ends of the two connecting screws are connected with one ends of the clamping plates respectively, the other ends of the two clamping plates are connected with one ends of the first clamping blocks respectively, and the two first sliding blocks are in sliding connection with one ends of the sliding grooves respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage power grid accessory devices, in particular to a lightning protection device for low-voltage power grid protection which is easy to install. Background Art

[0002] As we all know, low-voltage power grid usually refers to the power system with a voltage level of 1kV and below. This kind of power grid is mainly used for residential electricity, commercial electricity and small industrial electricity, and is the part of the power system closest to users. In order to protect the low-voltage power grid from lightning hazards, it is necessary to install lightning protection devices to effectively reduce the damage of lightning to the power grid, improve the lightning protection capability of the power grid, and prevent lightning from hitting the power grid and causing equipment damage, power outages and other accidents;

[0003] Most of the existing lightning protection devices for low-voltage power grid protection are fixedly installed. When they are worn out after long-term use, the staff cannot replace them, resulting in a weakened lightning protection effect, thereby reducing the work efficiency and effect of protecting the low-voltage power grid, resulting in poor practicality. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a lightning protection device for low-voltage power grid protection that is flexible to install and can be quickly disassembled and repaired by workers when it is damaged after long-term use, thereby improving the work efficiency and effect of protecting the low-voltage power grid, thereby enhancing the practicality of the lightning protection device.

[0005] The utility model discloses a lightning protection device for low-voltage power grid protection that is easy to install, comprising a power grid main body, a mounting block, two groups of connecting screws, two groups of first sliding blocks, two groups of clamping plates, two groups of first clamping blocks, a fixed block, a connecting plate, a lightning protection assembly and a connecting assembly. The top of the power grid main body is connected with the bottom of the mounting block, a groove is arranged on the top of the mounting block, a group of threaded holes are arranged on the left and right ends of the mounting block groove, the two groups of connecting screws are respectively threadedly connected with one end of the mounting block groove through the threaded holes, one end of the two groups of connecting screws is respectively connected with one end of the clamping plate, the other end of the two groups of clamping plates is respectively connected with one end of a group of first clamping blocks, a groove is arranged at the bottom of the mounting block groove, the two groups of first sliding blocks are respectively slidably connected with one end of the sliding groove, the top of the two groups of first sliding blocks is respectively connected with the bottom of a group of clamping plates, a group of clamping grooves are respectively arranged on the left and right ends of the fixed block, and the other ends of the two groups of first clamping blocks are respectively clamped with one end of the fixed block through the clamping groove, the bottom of the fixed block is tightly attached to the bottom of the mounting block groove, the top of the fixed block is connected to the bottom of the connecting plate, and the top of the connecting plate is connected to the bottom of the lightning protection assembly through the connecting assembly.

[0006] Preferably, the connecting assembly includes a first hinge seat, four groups of second hinge seats, two groups of slides, two groups of connecting rods, two groups of telescopic rods and two groups of connecting springs. The top of the connecting plate is hinged to the bottom of the lightning protection assembly through the first hinge seat, and the left and right ends of the top of the connecting plate are respectively hinged to the bottom of the slide seat through a group of second hinge seats and the bottom of the slide. A group of grooves are respectively provided at the other ends of the two groups of slides. The bottoms of the two groups of slide grooves are respectively connected to the bottoms of a group of telescopic rods, the tops of the two groups of telescopic rods are respectively connected to the bottoms of a group of connecting rods, and the two groups of connecting rods are respectively slidably connected to the slide grooves, and a group of connecting springs are respectively provided on the outsides of the two groups of telescopic rods.

[0007] Preferably, two groups of rotating nuts are further included, and one end of each of the two groups of connecting screws is provided with a group of rotating nuts.

[0008] Preferably, it also includes two groups of annular plates and two groups of sealing covers, a group of annular plates are respectively provided at the left and right ends of the mounting block, a group of threaded grooves are respectively provided at one end of the two groups of sealing covers, and the other ends of the two groups of annular plates are respectively threadedly clamped with the threaded grooves of the sealing covers.

[0009] Preferably, it also includes an annular clamping block, the top of the mounting block is provided with an annular clamping groove, the bottom of the annular clamping block is clamped with the top of the mounting block through the annular clamping groove, and the top of the annular clamping block is connected to the bottom of the connecting plate.

[0010] Preferably, two groups of hand-held handles are further included, and one end of each of the two groups of sealing covers is provided with a group of hand-held handles.

[0011] Preferably, it also includes an annular sealing ring, the bottom of the annular clamping block is connected to the top of the annular sealing ring, and the bottom of the annular sealing ring is in close contact with the bottom of the annular clamping groove of the mounting block.

[0012] Preferably, two groups of sponge pads are further included, one end of each of the two groups of splints is provided with a group of sponge pads, and the other ends of the two groups of sponge pads are respectively tightly attached to one end of the fixing block.

[0013] Compared with the prior art, the utility model is a lightning protection device for protecting a low-voltage power grid which is easy to install and has the following beneficial effects: when it needs to be disassembled after long-term use, the staff rotates the two sets of connecting screws so that the clamping plate drives the first clamping block to move through the first slider respectively, until the two sets of clamping blocks are respectively disengaged from the clamping slots of the fixed block, and then the staff pulls the lightning protection assembly until the fixed block is disengaged from the groove of the installation block, and then starts inspection and maintenance. The staff can quickly disassemble and repair the lightning protection assembly, thereby improving the work efficiency and effect of protecting the low-voltage power grid, and thus enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2It is a front view structural cross-sectional schematic diagram of the utility model;

[0016] Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A in the middle;

[0017] Markings in the attached drawings: 1. Power grid body; 2. Mounting block; 3. Connecting screw; 4. First slider; 5. Clamp; 6. First clamping block; 7. Fixed block; 8. Connecting plate; 9. Lightning protection assembly; 10. First hinge seat; 11. Second hinge seat; 12. Slide; 13. Connecting rod; 14. Telescopic rod; 15. Connecting spring; 16. Rotating nut; 17. Annular plate; 18. Sealing cover; 19. Annular clamping block; 20. Handle; 21. Annular sealing ring; 22. Sponge pad. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] like Figures 1 to 3 As shown, the utility model is a lightning protection device for low-voltage power grid protection that is easy to install, including a power grid body 1, and also includes a mounting block 2, two groups of connecting screws 3, two groups of first sliders 4, two groups of clamping plates 5, two groups of first clamping blocks 6, a fixing block 7, a connecting plate 8, a lightning protection assembly 9 and a connecting assembly. The top of the power grid body 1 is connected to the bottom of the mounting block 2, the top of the mounting block 2 is provided with a groove, and the left and right ends of the groove of the mounting block 2 are respectively provided with a group of threaded holes, the two groups of connecting screws 3 are respectively threadedly connected to one end of the groove of the mounting block 2 through the threaded holes, one end of the two groups of connecting screws 3 is respectively connected to one end of the clamping plate 5, and the other ends of the two groups of clamping plates 5 are respectively connected to one end of a group of first clamping blocks 6, the bottom of the groove of the mounting block 2 is provided with a groove, the two groups of first sliders 4 are respectively slidably connected to one end of the slide groove, and the tops of the two groups of first sliders 4 are respectively connected to the bottoms of a group of clamping plates 5 Then, a group of card slots are respectively provided at the left and right ends of the fixing block 7, and the other ends of the two groups of first card blocks 6 are respectively clamped with one end of the fixing block 7 through the card slots, the bottom of the fixing block 7 is tightly attached to the bottom of the groove of the mounting block 2, the top of the fixing block 7 is connected to the bottom of the connecting plate 8, and the top of the connecting plate 8 is connected to the bottom of the lightning protection component 9 through a connecting component; when it needs to be disassembled after long-term use, the staff rotates the two groups of connecting screws so that the clamping plate drives the first card block to move through the first slider respectively until the two groups of card blocks are respectively disengaged from the fixing block card slots, and then the staff pulls the lightning protection component until the fixing block is driven out of the mounting block groove, and then starts to carry out inspection and maintenance, the staff can quickly disassemble and repair the lightning protection component, thereby improving the work efficiency and effect of protecting the low-voltage power grid, and thus enhancing practicality.

[0020] As a preferred embodiment of the above embodiment, the connecting assembly includes a first hinge seat 10, four groups of second hinge seats 11, two groups of slides 12, two groups of connecting rods 13, two groups of telescopic rods 14 and two groups of connecting springs 15. The top of the connecting plate 8 is hinged to the bottom of the lightning protection assembly 9 through the first hinge seat 10, and the left and right ends of the top of the connecting plate 8 are respectively hinged to the bottom of the slide cylinder 12 through a group of second hinge seats 11, and the other ends of the two groups of slide cylinders 12 are respectively provided with a group of grooves, and the bottoms of the two groups of slide grooves are respectively connected to the bottoms of a group of telescopic rods 14, and the tops of the two groups of telescopic rods 14 are respectively connected to a group of connecting rods 13 is connected at the bottom, and the two groups of connecting rods 13 are respectively slidably connected to the grooves of the slide cylinder 12, and a group of connecting springs 15 are respectively arranged on the outer sides of the two groups of telescopic rods 14; when encountering bad weather such as wind, it will cause an impact on the lightning protection assembly, so that the two groups of connecting rods start to slide through the second hinge seat and the connecting rod hinge, one group of connecting rods starts to compress the telescopic rods, and the other group of connecting rods stretches the telescopic rods. The impact of bad weather on the lightning protection assembly caused by the telescopic rod driving the connecting spring to extend and retract can be reduced, thereby enhancing practicality.

[0021] As a preferred embodiment of the above, two sets of rotating nuts 16 are further included. One end of each of the two sets of connecting screws 3 is provided with a set of rotating nuts 16. This allows the staff to rotate the two sets of connecting screws more quickly.

[0022] As a preferred embodiment of the above embodiment, two groups of annular plates 17 and two groups of sealing covers 18 are further included. A group of annular plates 17 are respectively provided at the left and right ends of the mounting block 2. One end of the two groups of sealing covers 18 is respectively provided with a group of threaded grooves, and the other ends of the two groups of annular plates 17 are respectively threadedly clamped with the threaded grooves of the sealing covers 18; through the threaded clamping of the sealing covers and the annular plates, the connecting screws and rotating nuts exposed at both ends of the mounting block can be protected, and the damage to the connecting screws and the like caused by external environmental factors can be reduced, thereby enhancing practicality.

[0023] As a preferred embodiment of the above embodiment, it also includes an annular clamping block 19, an annular clamping groove is set on the top of the mounting block 2, the bottom of the annular clamping block 19 is clamped with the top of the mounting block 2 through the annular clamping groove, and the top of the annular clamping block 19 is connected to the bottom of the connecting plate 8; the internal parts of the mounting block groove can be protected to prevent external moisture from entering the mounting block groove to corrode the parts, thereby enhancing practicality.

[0024] As a preference of the above embodiment, two groups of hand-held handles 20 are further included. One end of each of the two groups of sealing covers 18 is provided with a group of hand-held handles 20. This allows the staff to rotate the sealing covers more quickly, thereby enhancing practicality.

[0025] As a preferred embodiment of the above, an annular sealing ring 21 is further included, the bottom of the annular clamping block 19 is connected to the top of the annular sealing ring 21, and the bottom of the annular sealing ring 21 is tightly attached to the bottom of the annular clamping groove of the mounting block 2; the sealing effect is improved, thereby enhancing practicality.

[0026] As a preferred embodiment of the above embodiment, a group of sponge pads 22 are also included. One end of each of the two groups of splints 5 is provided with a group of sponge pads 22, and the other ends of the two groups of sponge pads 22 are respectively in close contact with one end of the fixed block 7; the wear on the fixed block caused by extrusion friction can be reduced, thereby enhancing practicality.

[0027] The utility model discloses a lightning protection device for protecting a low-voltage power grid which is easy to install. Its working principle is as follows: when it needs to be disassembled after long-term use, the staff first rotates the two groups of sealing covers by holding the handle so that the two groups of sealing covers are respectively disengaged from the threaded clamping of the annular plate, and then rotates the two groups of connecting screws by rotating the nut, so that the clamping plate drives the first clamping block to move respectively through the first slider until the two groups of clamping blocks are respectively disengaged from the clamping groove of the fixed block, and then the staff pulls the lightning protection assembly until the fixed block is driven to be disengaged from the groove of the installation block, and then the inspection and maintenance can be started.

[0028] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

[0029] The “first”, “second” and “third” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A lightning protection device for protecting a low-voltage power grid which is easy to install, comprising a power grid body (1), characterized in that: The utility model also comprises a mounting block (2), two groups of connecting screw rods (3), two groups of first sliding blocks (4), two groups of clamping plates (5), two groups of first clamping blocks (6), a fixing block (7), a connecting plate (8), a lightning protection assembly (9) and a connecting assembly. The top of the power grid body (1) is connected to the bottom of the mounting block (2). The top of the mounting block (2) is provided with a groove. The left and right ends of the groove of the mounting block (2) are respectively provided with a group of threaded holes. The two groups of connecting screw rods (3) are respectively threadedly connected to one end of the groove of the mounting block (2) through the threaded holes. One end of the two groups of connecting screw rods (3) is respectively connected to one end of the clamping plate (5). The other ends of the two groups of clamping plates (5) are respectively connected to one end of the clamping plate (5). The two sets of first sliders (4) are respectively connected to one end of a group of first clamping blocks (6); a groove is provided at the bottom of the groove of the mounting block (2); the two sets of first sliders (4) are respectively connected to one end of the sliding groove in a sliding manner; the tops of the two sets of first sliders (4) are respectively connected to the bottom of a group of clamping plates (5); the left and right ends of the fixing block (7) are respectively provided with a group of clamping grooves; and the other ends of the two sets of first clamping blocks (6) are respectively clamped with one end of the fixing block (7) through the clamping grooves; the bottom of the fixing block (7) is tightly attached to the bottom of the groove of the mounting block (2); the top of the fixing block (7) is connected to the bottom of the connecting plate (8); and the top of the connecting plate (8) is connected to the bottom of the lightning protection component (9) through a connecting component.

2. A lightning protection device for low-voltage power grid protection that is easy to install as claimed in claim 1, characterized in that: The connecting assembly comprises a first hinge seat (10), four groups of second hinge seats (11), two groups of slides (12), two groups of connecting rods (13), two groups of telescopic rods (14) and two groups of connecting springs (15). The top of the connecting plate (8) is hinged to the bottom of the lightning protection assembly (9) through the first hinge seat (10), the left end and the right end of the top of the connecting plate (8) are respectively hinged to the bottom of the slides (12) through a group of second hinge seats (11), the other ends of the two groups of slides (12) are respectively provided with a group of grooves, the bottoms of the two groups of slide grooves are respectively connected to the bottoms of a group of telescopic rods (14), the tops of the two groups of telescopic rods (14) are respectively connected to the bottoms of a group of connecting rods (13), and the two groups of connecting rods (13) are respectively slidably connected to the grooves of the slides (12), and the outer sides of the two groups of telescopic rods (14) are respectively provided with a group of connecting springs (15).

3. A lightning protection device for low-voltage power grid protection that is easy to install as claimed in claim 2, characterized in that: It also comprises two groups of rotating nuts (16), and one end of each of the two groups of connecting screw rods (3) is provided with a group of rotating nuts (16).

4. A lightning protection device for low-voltage power grid protection that is easy to install as claimed in claim 3, characterized in that: It also includes two groups of annular plates (17) and two groups of sealing covers (18), wherein a group of annular plates (17) are respectively arranged at the left end and the right end of the mounting block (2), a group of threaded grooves are respectively arranged at one end of the two groups of sealing covers (18), and the other ends of the two groups of annular plates (17) are respectively threadedly clamped with the threaded grooves of the sealing covers (18).

5. A lightning protection device for low-voltage power grid protection that is easy to install as claimed in claim 4, characterized in that: It also includes an annular clamping block (19), the top of the mounting block (2) is provided with an annular clamping groove, the bottom of the annular clamping block (19) is clamped with the top of the mounting block (2) through the annular clamping groove, and the top of the annular clamping block (19) is connected to the bottom of the connecting plate (8).

6. A lightning protection device for low-voltage power grid protection that is easy to install as claimed in claim 5, characterized in that: It also comprises two groups of hand-held handles (20), and one end of each of the two groups of sealing covers (18) is provided with a group of hand-held handles (20).

7. A lightning protection device for low-voltage power grid protection that is easy to install as claimed in claim 6, characterized in that: It also includes an annular sealing ring (21), the bottom of the annular clamping block (19) and the top of the annular sealing ring (21) are connected, and the bottom of the annular sealing ring (21) and the bottom of the annular clamping groove of the mounting block (2) are in close contact.

8. A lightning protection device for low-voltage power grid protection that is easy to install as claimed in claim 7, characterized in that: It also comprises two groups of sponge pads (22), one end of each of the two groups of sponge pads (5) is provided with a group of sponge pads (22), and the other ends of the two groups of sponge pads (22) are respectively tightly attached to one end of the fixing block (7).

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