Moistureproof small lightning arrester

Abstract

The utility model discloses a moisture-proof small lightning arrester which comprises a lightning arrester body, a connecting seat is arranged at the top end of the lightning arrester body, a connecting terminal is arranged at the top end of the connecting seat, the input end of the connecting terminal is connected with a high-voltage connecting line, and a fixed sleeve is clamped at the top position of the outer side of the connecting terminal. A clamping groove is formed in the position, corresponding to the connecting terminal, of the bottom end of the fixing sleeve, a drying groove is formed in the top end of the fixing sleeve, a sleeving barrel is embedded into the inner side of the fixing sleeve, moisture absorption holes are formed in the outer side of the sleeving barrel, and moisture can flow to the connecting terminal through a gap between the high-voltage connecting line and the waterproof cover; at the moment, the moisture can be preliminarily absorbed by the moisture absorption sponge, and then continuously infiltrated moisture can be absorbed by the silicone grease drying agent in the drying groove, so that the moisture can be comprehensively controlled in multiple directions, a connecting terminal between the high-voltage connecting wire and the lightning arrester body is prevented from being rusted, the normal use of the lightning arrester body is ensured, and economic and personnel injuries are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to a moisture-proof small lightning arrester. Background Art

[0002] Lightning arresters are used to protect electrical equipment from high transient overvoltage hazards caused by lightning strikes, and to limit the follow-on time, and often also limit the follow-on amplitude. Explosion-proof lightning arresters are lightning arresters with explosion-proof structures. They are one of the common types of lightning arresters and are used to protect electrical equipment and power transmission devices, thereby preventing equipment failure caused by lightning strikes, and protecting people from economic losses.

[0003] However, most of the existing lightning arresters lack moisture-proof devices at the wiring connection ends. During use, they will be constantly corroded by humid air, causing the lightning arrester to be damaged and fail, making it difficult to protect power equipment. In order to avoid the above technical problems, it is indeed necessary to provide a moisture-proof small lightning arrester to overcome the above defects in the prior art. Utility Model Content

[0004] The utility model provides a moisture-proof small lightning arrester, which can effectively solve the problem that most of the existing lightning arresters mentioned in the above background technology lack moisture-proof equipment at the wiring connection end, and will be constantly corroded by humid air during use, thereby causing the lightning arrester to be damaged and fail, making it difficult to protect power equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a moisture-proof small lightning arrester, comprising a lightning arrester body, a connection seat is installed at the top of the lightning arrester body, a connection terminal is installed at the top of the connection seat, a high-voltage connection line is connected to the input end of the connection terminal, a fixing sleeve is clamped at the top position of the outer side of the connection terminal, a clamping groove is opened at the bottom end of the fixing sleeve and the corresponding position of the connection terminal, a drying groove is opened at the top of the fixing sleeve, a sleeve barrel is embedded in the inner side of the fixing sleeve, and a moisture absorption hole is opened on the outer side of the sleeve barrel;

[0006] A threaded base is threadedly connected at the inner top position of the fixed sleeve, a hygroscopic sponge is clamped at the top end of the threaded base, a positioning top cover is sleeved at the outer top position of the hygroscopic sponge, and a waterproof cover is connected to the top end of the positioning top cover.

[0007] Preferably, a wiring hole is provided at the top of the waterproof cover at a position corresponding to the high-voltage connecting line, and the waterproof cover is sleeved at an outer position of the high-voltage connecting line through the wiring hole.

[0008] Preferably, a plurality of moisture absorption holes are provided, and the plurality of moisture absorption holes are equidistantly provided at the outer side of the sleeve barrel.

[0009] Preferably, a waterproof groove is provided at the bottom end of the waterproof cover, and the outer diameter of the threaded base is equal to the inner diameter of the fixing sleeve.

[0010] Preferably, a clamping base is installed at the bottom end of the arrester body, a mounting seat is provided at the bottom end of the clamping base, a sliding block is connected to the bottom end of the mounting seat, the outer side of the mounting seat is slidably connected to a limiting slide rod, one end of the limiting slide rod is connected to an arc-shaped slider, the outer side of the limiting slide rod is sleeved with a return spring, a mounting hole is provided at the bottom end of the sliding block, a sliding slot plate is slidably sleeved at the outer bottom position of the sliding block, and the inner side of the sliding slot plate is threadedly connected with a mounting screw.

[0011] Preferably, one end of the return spring is spot welded to the mounting seat, and the other end of the return spring is spot welded to the limiting sliding rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a scientific and reasonable structure and is safe and convenient to use:

[0013] 1. The arrester body, connecting seat, connecting terminal, high-voltage connecting wire, fixing sleeve, clamping groove, drying groove, sleeve barrel, moisture absorption hole, threaded base, moisture absorption sponge, positioning top cover and waterproof cover are provided. Moisture will flow to the connecting terminal through the gap between the high-voltage connecting wire and the waterproof cover, and will be initially absorbed by the moisture absorption sponge at this time. Then, the moisture that continues to seep will be absorbed by the silicone grease desiccant inside the drying groove, so as to control the moisture in all directions and prevent the connecting terminal between the high-voltage connecting wire and the arrester body from rusting, thereby ensuring that the arrester body can be used normally and preventing economic and personnel damage.

[0014] 2. A snap-on base, a mounting seat, a sliding block, a limiting slide rod, an arc-shaped slider, a reset spring, a mounting hole, a sliding slot plate and a mounting screw are provided. If multiple devices need to be installed, the snap-on base will press the arc-shaped slider and then compress the reset spring to snap into the inner side of the mounting seat, and then slide it into the sliding slot plate. As many sliding blocks as needed can be installed, and during maintenance and replacement, the limiting slide rod can be pulled to quickly disassemble the arrester body. The installation method is simple and diverse, which can meet the use requirements of different numbers of arrester bodies, thereby increasing the use range and practicality of the arrester body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the installation structure of the fixed sleeve of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the sliding card block of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the return spring of the utility model;

[0021] Numbers in the figure: 1. Lightning arrester body; 2. Connecting seat; 3. Connecting terminal; 4. High-voltage connecting wire; 5. Fixing sleeve; 6. Snap-in groove; 7. Drying groove; 8. Socket barrel; 9. Moisture absorption hole; 10. Threaded base; 11. Moisture absorption sponge; 12. Positioning top cover; 13. Waterproof cover; 14. Snap-in base; 15. Mounting seat; 16. Sliding block; 17. Limiting slide bar; 18. Arc slide bar; 19. Reset spring; 20. Mounting hole; 21. Sliding slot plate; 22. Mounting screw. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example: Figure 1-4 As shown, the utility model provides a technical solution, a moisture-proof small lightning arrester, including a lightning arrester body 1, a connecting seat 2 is installed on the top of the lightning arrester body 1, a connecting terminal 3 is installed on the top of the connecting seat 2, a high-voltage connecting line 4 is connected to the input end of the connecting terminal 3, a fixing sleeve 5 is clamped at the top position of the outer side of the connecting terminal 3, a clamping groove 6 is opened at the bottom end of the fixing sleeve 5 and the corresponding position of the connecting terminal 3, a drying groove 7 is opened at the top of the fixing sleeve 5, a sleeve barrel 8 is embedded in the inner side of the fixing sleeve 5, a moisture absorption hole 9 is opened on the outer side of the sleeve barrel 8, and a plurality of moisture absorption holes 9 are opened, and the plurality of moisture absorption holes 9 are equidistantly opened at the outer side of the sleeve barrel 8, so as to facilitate moisture absorption and prevent rust;

[0024] A threaded base 10 is threadedly connected at the inner top position of the fixed sleeve 5, a hygroscopic sponge 11 is clamped at the top of the threaded base 10, a positioning top cover 12 is sleeved at the outer top position of the hygroscopic sponge 11, a waterproof cover 13 is connected to the top of the positioning top cover 12, a wiring hole is provided at the top of the waterproof cover 13 corresponding to the position of the high-voltage connecting line 4, the waterproof cover 13 is sleeved on the outer position of the high-voltage connecting line 4 through the wiring hole, which is conducive to the installation of the waterproof cover 13, and a waterproof groove is provided at the bottom end of the waterproof cover 13, the outer diameter of the threaded base 10 is equal to the inner diameter of the fixed sleeve 5, so the waterproof cover 13 is convenient to install.

[0025] A snap-on base 14 is installed at the bottom end of the arrester body 1, and a mounting seat 15 is provided at the bottom end of the snap-on base 14. A sliding block 16 is connected to the bottom end of the mounting seat 15. The outer side of the mounting seat 15 is slidably connected to a limiting slide rod 17. One end of a reset spring 19 is spot welded to the mounting seat 15, and the other end of the reset spring 19 is spot welded to the limiting slide rod 17, which is conducive to resetting the limiting slide rod 17. An arc-shaped slider 18 is connected to one end of the limiting slide rod 17, and a reset spring 19 is sleeved on the outer side of the limiting slide rod 17. A mounting hole 20 is provided at the bottom end of the sliding block 16, and a sliding slot plate 21 is slidably sleeved at the outer bottom position of the sliding block 16, and a mounting screw 22 is threadedly connected to the inner side of the sliding slot plate 21.

[0026] The working principle and use process of the utility model are as follows: first, add silicone grease desiccant to the inner side of the drying groove 7, and then tighten the threaded base 10 to the inner top of the fixed sleeve 5. When the arrester body 1 is used, the external water vapor will condense on the outer side of the high-voltage connecting line 4, and then these water vapors will condense into water droplets and flow to the bottom of the high-voltage connecting line 4. At this time, most of the water droplets will be blocked by the waterproof cover 13 and then flow out to the outside. A small part of the water will flow to the connecting terminal 3 through the gap between the high-voltage connecting line 4 and the waterproof cover 13, and will be initially absorbed by the moisture-absorbing sponge 11 at this time. Then, the water that continues to seep down will be absorbed by the silicone grease desiccant inside the drying groove 7, thereby comprehensively controlling the water in all directions to prevent the connecting terminal 3 between the high-voltage connecting line 4 and the arrester body 1 from rusting, thereby ensuring that the arrester body 1 can be used normally and preventing economic and personnel damage;

[0027] Next, when installing the lightning arrester body 1, if only a single lightning arrester body 1 needs to be installed, install it at the corresponding position of the use device by passing the installation screw 22 through the installation hole 20. If multiple devices need to be installed, press the arc-shaped slider 18 with the clamping base 14 and then compress the reset spring 19 to clamp it into the inner side of the mounting seat 15, and then slide it into the sliding slot plate 21. Install as many sliding blocks 16 as needed, and during maintenance and replacement, pull the limiting slide bar 17 to quickly disassemble the lightning arrester body 1. The installation method is simple and diverse, which can meet the use requirements of different numbers of lightning arrester bodies 1, thereby increasing the use range and practicality of the lightning arrester body 1.

[0028] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A moisture-proof small lightning arrester, comprising a lightning arrester body (1), characterized in that: A connecting seat (2) is installed at the top of the arrester body (1), a connecting terminal (3) is installed at the top of the connecting seat (2), the input end of the connecting terminal (3) is connected to a high-voltage connecting line (4), a fixing sleeve (5) is clamped at the top position of the outer side of the connecting terminal (3), a clamping groove (6) is provided at the bottom end of the fixing sleeve (5) at a position corresponding to the connecting terminal (3), a drying groove (7) is provided at the top of the fixing sleeve (5), a sleeve barrel (8) is embedded in the inner side of the fixing sleeve (5), and a moisture absorption hole (9) is provided on the outer side of the sleeve barrel (8); A threaded base (10) is threadedly connected at the inner top position of the fixed sleeve (5), a moisture-absorbing sponge (11) is clamped at the top end of the threaded base (10), a positioning top cover (12) is sleeved at the outer top position of the moisture-absorbing sponge (11), and a waterproof cover (13) is connected to the top end of the positioning top cover (12).

2. A moisture-proof small lightning arrester according to claim 1, characterized in that: A wiring hole is provided at the top of the waterproof cover (13) at a position corresponding to the high-voltage connecting line (4), and the waterproof cover (13) is sleeved at an outer position of the high-voltage connecting line (4) through the wiring hole.

3. A moisture-proof small lightning arrester according to claim 1, characterized in that: A plurality of moisture absorption holes (9) are provided, and the plurality of moisture absorption holes (9) are equidistantly provided at the outer side of the sleeve barrel (8).

4. A moisture-proof small lightning arrester according to claim 1, characterized in that: A waterproof groove is provided at the bottom end of the waterproof cover (13), and the outer diameter of the threaded base (10) is equal to the inner diameter of the fixing sleeve (5).

5. A moisture-proof small lightning arrester according to claim 1, characterized in that: A clamping base (14) is installed at the bottom end of the arrester body (1), a mounting seat (15) is arranged at the bottom end of the clamping base (14), a sliding block (16) is connected to the bottom end of the mounting seat (15), a limiting slide rod (17) is slidably connected to the outer side of the mounting seat (15), one end of the limiting slide rod (17) is connected to an arc-shaped slider (18), a return spring (19) is sleeved on the outer side of the limiting slide rod (17), a mounting hole (20) is provided at the bottom end of the sliding block (16), a sliding slot plate (21) is slidably sleeved at the outer bottom position of the sliding block (16), and a mounting screw (22) is threadedly connected to the inner side of the sliding slot plate (21).

6. A moisture-proof small lightning arrester according to claim 5, characterized in that: One end of the return spring (19) is spot welded to the mounting seat (15), and the other end of the return spring (19) is spot welded to the limiting slide bar (17).

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