Puncture grounding device

Abstract

The utility model relates to a puncture grounding device, which comprises a puncture wire clamp assembly and a grounding ring, the puncture wire clamp assembly comprises a base, a gland, a plurality of upper puncture blades, a plurality of lower puncture blades, a bolt and a torque nut, and the bolt sequentially penetrates through the gland and the base and is screwed with the torque nut. A puncture clamping cavity and a grounding clamping cavity are respectively formed between the plurality of upper puncture blades and the plurality of lower puncture blades, an insulating sleeve is arranged on the grounding ring, one end of the grounding ring is provided with a grounding connecting part exposed outside the insulating sleeve, and the grounding connecting part is connected in the grounding clamping cavity; the other end of the grounding ring is provided with a grounding lap joint part exposed out of the insulating sleeve, the insulating sleeve is rotatably provided with an insulating protective cover wrapping the grounding lap joint part, and the insulating protective cover comprises a cover body rotatably arranged on the insulating sleeve and a cover cap rotatably arranged on the insulating sleeve and matched with the cover body. The utility model has the advantages of compact structure, stable and reliable performance, convenient installation, reliable connection and good protection performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power hardware, in particular to a puncture grounding device. Background Art

[0002] The piercing wire clamp is low-cost, safe, reliable and maintenance-free. There is no need to cut off the main cable or strip the insulation layer of the cable to make a cable branch. The joint is completely insulated and can be operated under power. It can be branched on site at any position of the cable. The piercing grounding wire clamp is mainly used for 10KV insulated overhead cables to play the role of grounding, discharging and testing electricity. The existing piercing grounding wire clamp includes a piercing wire clamp assembly and a grounding ring arranged on the piercing wire clamp assembly. The grounding overlap part of the grounding ring of the existing piercing grounding wire clamp is exposed and has poor protection performance. When installing the piercing grounding wire clamp, the installer is prone to accidentally touch the grounding overlap part, which has low safety. In addition, the piercing grounding wire clamp also has the defects of complex structure, convenient assembly and unreliable connection. Summary of the invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a puncture grounding device with compact structure, stable and reliable performance, convenient installation, reliable connection and good protection performance.

[0004] To achieve the above purpose, the utility model adopts a puncture grounding device, including a puncture wire clamp assembly and a grounding ring. The puncture wire clamp assembly includes a base, a pressure cover arranged on the base, a plurality of upper puncture blades arranged in the base, a plurality of lower puncture blades arranged in the pressure cover, a bolt, and a torque nut. The bolt passes through the pressure cover and the base in sequence and is tightened with a torque nut. A puncture clamping cavity and a grounding clamping cavity are respectively formed between the plurality of upper puncture blades and the plurality of lower puncture blades. An insulating sleeve is arranged on the grounding ring. One end of the grounding ring has There is a grounding connection part exposed outside the insulating sleeve, and the grounding connection part is connected to the grounding clamping cavity. The other end of the grounding ring has a grounding overlap part exposed outside the insulating sleeve. An insulating shield wrapped around the grounding overlap part is rotatably arranged on the insulating sleeve. The insulating shield includes a cover body rotatably arranged on the insulating sleeve, a cover cover rotatably arranged on the insulating sleeve and matched with the cover body, the cover cover is covered on the cover body, and a receiving cavity for accommodating the grounding overlap part is formed between the cover cover and the cover body, and an opening lever is arranged on one side of the cover body.

[0005] The beneficial effects of the above structure are: an insulating shield is wrapped on the grounding overlap part of the grounding ring, and the insulating shield can prevent the grounding overlap part from being exposed outside the insulating sleeve, and the protective performance is better. When installing the grounding device, it can prevent the installer from accidentally touching the grounding overlap part, which is beneficial to improving the safety performance of the piercing grounding device, and the cover body and cover cover of the insulating shield are rotatably connected to the insulating sleeve, so as to facilitate the opening or closing of the cover body and cover cover, which is beneficial to improving the construction efficiency of the piercing grounding device. The upper piercing blade and the lower piercing blade are clamped on the grounding connection part of the grounding ring, so as to facilitate the assembly of the piercing wire clamp assembly and the grounding ring, and the assembly is more convenient, and the connection between the piercing wire clamp assembly and the grounding ring can be ensured to be more reliable. Therefore, the piercing grounding device has the advantages of compact structure, stable and reliable performance, convenient installation, reliable connection, and good protective performance.

[0006] In particular, two support plates are provided on the insulating sleeve corresponding to the cover body and the cover cap, and positioning shafts are provided on the two support plates. Positioning holes matching the positioning shafts are provided on one end of the cover body and the cover cap, respectively. The positioning shafts are inserted into the positioning holes of the cover body and the cover cap, and form a rotational connection and matching between the cover body, the cover cap and the positioning shafts. The cover body and the cover cap are connected to the positioning shafts of the insulating sleeve, so as to facilitate the assembly of the cover body, the cover cap and the insulating sleeve, and the assembly efficiency is higher.

[0007] In particular, the upper piercing blade is provided with an upper arc-shaped clamping groove that abuts against the grounding connection part of the grounding ring, and the lower piercing blade is provided with a lower arc-shaped clamping groove that abuts against the grounding connection part of the grounding ring, and the grounding clamping cavity is formed between the upper arc-shaped clamping groove and the lower arc-shaped clamping groove. The upper arc-shaped clamping groove of the upper piercing blade and the lower arc-shaped clamping groove of the lower piercing blade can be clamped on the grounding connection part of the grounding ring, thereby ensuring that the connection between the upper piercing blade, the lower piercing blade and the grounding ring is more reliable.

[0008] In particular, the upper puncture blade is provided with a plurality of upper puncture teeth exposed outside the gland, and the lower puncture blade is provided with a plurality of lower puncture teeth exposed outside the base, and the puncture clamping cavity is formed between the plurality of upper puncture teeth and the plurality of lower puncture teeth. The plurality of upper puncture teeth of the upper puncture blade and the plurality of lower puncture teeth of the lower puncture blade can puncture into the cable, thereby facilitating the puncture effect of the puncture grounding device.

[0009] In particular, a guide insert is provided on each side of the gland, and a limit slot is provided on the base corresponding to the guide insert, and the guide insert is inserted into the limit slot, and the guide insert moves with the gland and reciprocates in the limit slot. The guide insert of the gland is inserted into the limit slot of the base, which can prevent the gland from rotating at will during installation, facilitate the assembly of the gland and the base, and improve assembly efficiency.

[0010] In particular, the base has a guide piece at the grounding connection portion corresponding to the grounding ring, and a guide slope is provided on the side of the guide piece facing the grounding clamping cavity. The guide slope of the guide piece guides the grounding connection portion of the grounding ring, thereby facilitating the assembly of the grounding ring and the piercing wire clamp assembly, and the assembly efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a stereogram of an embodiment of the utility model.

[0012] Figure 2 It is a cross-sectional view of an embodiment of the utility model.

[0013] Figure 3 This is an exploded view of an embodiment of the utility model. DETAILED DESCRIPTION

[0014] like Figures 1 to 3As shown, the embodiment of the utility model is a puncture grounding device, including a puncture wire clamp assembly 10 and a grounding ring 20. The puncture wire clamp assembly 10 includes a base 11, a pressure cover 12 arranged on the base 11, a plurality of upper puncture blades 13 arranged in the base 11, a plurality of lower puncture blades 14 arranged in the pressure cover 12, a bolt 15, and a torque nut 16. The bolt 15 passes through the pressure cover 12 and the base 11 in sequence and is tightened with the torque nut 16. A puncture clamping cavity 100 and a grounding clamping cavity 101 are respectively formed between the plurality of upper puncture blades 13 and the plurality of lower puncture blades 14. An insulating sleeve 21 is arranged on the grounding ring 20. One end of the grounding ring 20 has a portion exposed in the insulating sleeve 21. 1, the grounding connection part 201 is connected to the grounding clamping cavity 101, the other end of the grounding ring 20 has a grounding overlap part 202 exposed outside the insulating sleeve 21, the insulating sleeve 21 is rotatably provided with an insulating shield 22 wrapped on the grounding overlap part 202, the insulating shield 22 includes a cover body 221 rotatably provided on the insulating sleeve 21, a cover 222 rotatably provided on the insulating sleeve 21 and matched with the cover body 221, the cover 222 covers the cover body 221, and a receiving cavity 200 for accommodating the grounding overlap part 202 is formed between the cover 222 and the cover body 221, and an opening lever 223 is provided on one side of the cover body 221. Two support plates 211 are provided on the insulating sleeve 21 corresponding to the cover body 221 and the cover 222, and the two support plates 211 are provided with positioning shafts 212. Positioning holes 224 matching with the positioning shafts 212 are respectively provided on one end of the cover body 221 and the cover 222. The positioning shafts 212 are inserted into the positioning holes 224 of the cover body 221 and the cover 222, and form a rotational connection and cooperation between the cover body 221, the cover 222 and the positioning shafts 212. The cover body and the cover are connected to the positioning shaft of the insulating sleeve, so as to facilitate the assembly of the cover body, the cover and the insulating sleeve, and the assembly efficiency is higher.

[0015] like Figure 1 and 3As shown, the upper puncture blade 13 is provided with an upper arc-shaped clamping groove 131 that abuts against the grounding connection part 201 of the grounding ring 20, and the lower puncture blade 14 is provided with a lower arc-shaped clamping groove 141 that abuts against the grounding connection part 201 of the grounding ring 20, and the grounding clamping cavity 101 is formed between the upper arc-shaped clamping groove 131 and the lower arc-shaped clamping groove 141. The upper arc-shaped clamping groove of the upper puncture blade and the lower arc-shaped clamping groove of the lower puncture blade can be clamped on the grounding connection part of the grounding ring, thereby ensuring that the connection between the upper puncture blade, the lower puncture blade and the grounding ring is more reliable. The upper puncture blade 13 is provided with a plurality of upper puncture teeth 132 exposed outside the pressure cover 12, and the lower puncture blade 14 is provided with a plurality of lower puncture teeth 142 exposed outside the base 11, and the puncture clamping cavity 100 is formed between the plurality of upper puncture teeth 132 and the plurality of lower puncture teeth 142. The plurality of upper puncture teeth of the upper puncture blade and the plurality of lower puncture teeth of the lower puncture blade can pierce into the cable, thereby facilitating the puncture effect of the puncture grounding device. A guide plug 121 is provided on both sides of the pressure cover 12, and a limited slot 111 is provided on the base 11 corresponding to the guide plug 121, and the guide plug 121 is inserted into the limited slot 111, and the guide plug 121 moves with the pressure cover 12 and reciprocates in the limited slot 111. The guide insert of the gland is inserted into the limiting slot of the base, which can prevent the gland from rotating at will during installation, facilitate the assembly of the gland and the base, and improve the assembly efficiency. The base 11 has a guide piece 112 at the grounding connection part 202 corresponding to the grounding ring 20, and the guide piece 112 is provided with a guide slope 113 on the side facing the grounding clamping cavity 101. The guide slope of the guide piece guides the grounding connection part of the grounding ring, thereby facilitating the assembly of the grounding ring and the piercing wire clamp assembly, and improving the assembly efficiency.

[0016] An insulating shield is wrapped around the grounding overlap of the grounding ring. The insulating shield can prevent the grounding overlap from being exposed outside the insulating sleeve, and the protective performance is better. When installing the grounding device, the installer can avoid accidentally touching the grounding overlap, which is beneficial to improving the safety performance of the piercing grounding device. The cover body and cover cover of the insulating shield are rotatably connected to the insulating sleeve, so as to facilitate the opening or closing of the cover body and cover cover, which is beneficial to improving the construction efficiency of the piercing grounding device. The upper piercing blade and the lower piercing blade are clamped on the grounding connection part of the grounding ring, so as to facilitate the assembly of the piercing wire clamp assembly and the grounding ring, making the assembly more convenient and ensuring a more reliable connection between the piercing wire clamp assembly and the grounding ring. Therefore, the piercing grounding device has the advantages of compact structure, stable and reliable performance, convenient installation, reliable connection, and good protective performance.

Claims

1. A puncture grounding device, comprising a puncture wire clamp assembly and a grounding ring, characterized in that: The puncture wire clamp assembly includes a base, a pressure cover arranged on the base, a plurality of upper puncture blades arranged in the base, a plurality of lower puncture blades arranged in the pressure cover, a bolt, and a torque nut. The bolt passes through the pressure cover and the base in sequence and is tightened with the torque nut. A puncture clamping cavity and a grounding clamping cavity are respectively formed between the plurality of upper puncture blades and the plurality of lower puncture blades. An insulating sleeve is arranged on the grounding ring. One end of the grounding ring has a grounding connection portion exposed outside the insulating sleeve, and the grounding connection portion is connected to the grounding clamping cavity. The other end of the grounding ring has a grounding overlap portion exposed outside the insulating sleeve. An insulating shield wrapped around the grounding overlap portion is rotatably arranged on the insulating sleeve. The insulating shield includes a cover body rotatably arranged on the insulating sleeve, a cover cover rotatably arranged on the insulating sleeve and matched with the cover body, the cover cover is covered on the cover body, and a receiving cavity for accommodating the grounding overlap portion is formed between the cover cover and the cover body, and an opening lever is arranged on one side of the cover body.

2. The puncture grounding device according to claim 1, characterized in that: Two support plates are provided on the insulating sleeve corresponding to the cover body and the cover cap, and positioning shafts are provided on the two support plates. Positioning holes matching the positioning shafts are respectively provided on one end of the cover body and the cover cap, and the positioning shafts are inserted into the positioning holes of the cover body and the cover cap, and constitute a rotational connection between the cover body, the cover cap and the positioning shafts.

3. The puncture grounding device according to claim 1 or 2, characterized in that: The upper piercing blade is provided with an upper arc-shaped clamping groove which abuts against the grounding connection part of the grounding ring, and the lower piercing blade is provided with a lower arc-shaped clamping groove which abuts against the grounding connection part of the grounding ring, and the grounding clamping cavity is formed between the upper arc-shaped clamping groove and the lower arc-shaped clamping groove.

4. The puncture grounding device according to claim 1 or 2, characterized in that: The upper puncture blade is provided with a plurality of upper puncture teeth exposed outside the pressure cover, and the lower puncture blade is respectively provided with a plurality of lower puncture teeth exposed outside the base, and the puncture clamping cavity is formed between the plurality of upper puncture teeth and the plurality of lower puncture teeth.

5. The puncture grounding device according to claim 1 or 2, characterized in that: A guide insert is respectively arranged on both sides of the pressure cover, and a limiting slot is arranged on the base corresponding to the guide insert. The guide insert is inserted into the limiting slot, and the guide insert moves with the pressure cover and reciprocates in the limiting slot.

6. The puncture grounding device according to claim 1 or 2, characterized in that: A guide piece is provided at the grounding connection portion of the base corresponding to the grounding ring, and a guide inclined surface is provided on the side of the guide piece facing the grounding clamping cavity.

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