CN216624589U - Capacitive voltage-dividing type electricity taking device capable of being installed in electrified mode - Google Patents

Abstract

The utility model discloses a capacitive voltage-dividing type electricity taking device capable of being installed in an electrified mode, which comprises a puncture wire clamp, wherein the puncture wire clamp comprises a C-shaped wire clamp seat, a movable clamping block and an adjusting screw rod, and the movable clamping block is arranged in the C-shaped wire clamp seat in a vertically lifting mode through the adjusting screw rod; the movable clamping block comprises a clamping block body, a puncture needle and a sealing plate; the clamping block body is provided with a plurality of through holes for mounting the pricking pins, and the bottom of the clamping block body is provided with a blind hole for mounting the adjusting screw rod; the shrouding is equipped with the breach of stepping down that is used for passing adjusting screw, and the shrouding passes through the bolt lock in clamp splice body bottom. The utility model optimizes and improves the prior puncture wire clamp, reduces the number of the puncture needles, and simultaneously improves the overall hardness of the puncture needles, thereby being capable of easily puncturing 10kV high-voltage cable sheaths, ensuring that puncture drainage can be in place and increasing the pressure intensity to facilitate puncture. The capacitive voltage-dividing type power taking device can effectively avoid the problems of overcurrent, ferromagnetic resonance and the like of the traditional electromagnetic PT power taking, and ensures long-term reliable and stable operation.

Description

Capacitive voltage-dividing type electricity taking device capable of being installed in electrified mode

Technical Field

The utility model relates to the technical field of electricity taking equipment, in particular to a capacitive voltage-dividing type electricity taking device capable of being installed in an electrified mode.

Background

Some measuring equipment sometimes need to be installed on a power transmission line, some measuring equipment need to take power from the power transmission line, cables in general low-voltage stores all have insulating sheaths, and when no exposed wiring terminals available are arranged near the installation position of the measuring equipment, the conventional method is to break the insulating sheaths of the cables, overlap wires at the broken opening, lead out a power supply and then connect the power supply to the equipment for power supply. This practice has the potential of poor contact and the integrity of the cable is compromised, requiring a power cut for operational safety, and is cumbersome.

In order to solve the problems, the Chinese patent with the application number of 202021503517.X discloses a 10kv puncture type drainage wire clamp, when the wire clamp is used, a lead is connected with a conductive drainage seat, then the whole wire clamp is hung on a main lead, a lifting rod is operated by an insulating rod to move, a movable clamping block ascends and a fixed clamping block clamps a lead, a pair of punctures move oppositely in the clamping process to puncture a lead insulating layer to be in contact communication with an inner conductor of the lead, and therefore drainage is achieved. In the operation process, procedures such as insulating wire peeling and the like are not needed, and the lead is directly connected with the main conductor, so that the aim of quickly getting electricity is fulfilled.

However, the scheme has the following defects: firstly, the movable clamping block in the scheme has an integrated structure for puncture, and cannot be replaced, and only the whole movable clamping block can be replaced if the movable clamping block is worn in use, so that the production cost is increased; secondly, a fixed clamping block and a movable clamping block are arranged in the scheme, the fixed clamping block and the movable clamping block are provided with mutually matched puncture holes, the structural design has redundancy, and a certain optimization and improvement space is provided; thirdly, the scheme is suitable for low voltage of below 400V, the puncture arrangement is more, the hardness is insufficient, and the puncture cannot puncture the high-voltage cable insulation sheath, so that the high-voltage cable insulation sheath cannot be suitable for high-voltage electricity taking.

Disclosure of Invention

The utility model provides a capacitive voltage-dividing type electricity-taking device capable of being installed in an electrified mode, and mainly aims to solve the problems in the prior art.

The utility model adopts the following technical scheme:

a capacitive voltage-dividing type power taking device capable of being installed in an electrified mode comprises a puncture wire clamp, wherein the puncture wire clamp comprises a C-shaped wire clamp seat, a movable clamping block and an adjusting screw rod, and the movable clamping block is arranged in the C-shaped wire clamp seat in a vertically lifting mode through the adjusting screw rod; the movable clamping block comprises a clamping block body, a puncture needle and a sealing plate; the clamping block body is provided with a plurality of through holes for mounting the felting needles, and the bottom of the clamping block body is provided with a blind hole for mounting the adjusting screw rod; the shrouding is equipped with and is used for passing adjusting screw's breach of stepping down, and the shrouding pass through the bolt lock in clamp splice body bottom.

Further, the bottom of the pricking pin is provided with an annular boss; the bottom of the clamp block body is provided with an annular concave part matched with the annular boss, and the annular concave part is internally provided with the through hole.

Further, the C-shaped wire clamp seat is provided with a clamping part, a sliding part and an installation part for installing the screw; the upper end face of the clamp block body is provided with an arc-shaped groove, the arc-shaped groove and the clamping portion form a clamp groove used for clamping a wire, and a plurality of puncture needles used for puncturing wire insulation layers are arranged in the arc-shaped groove.

Furthermore, the inner side wall of the clamping block body is provided with a sliding groove matched with the sliding part.

Still further, the inner peripheral edges of the clamping part and the sliding part are provided with raised first ribs; the clamp splice body is in the spout both sides are equipped with the locating part that first rib is inconsistent.

Still further, the limiting piece is a limiting bolt; and the movable clamping block is provided with a screw hole for assembling the limiting bolt on two sides of the sliding groove.

Furthermore, the peripheral edges of the clamping part and the sliding part are provided with second raised ribs, and the thickness of the first ribs is larger than that of the second ribs.

Furthermore, the outer side wall of the clamping block body is provided with a weight reduction groove.

Further, the device also comprises an installation base and a power taking insulator; the electricity-getting insulator is fixedly arranged on the mounting base and is connected with the puncture wire clamp through a high-voltage lead

Compared with the prior art, the utility model has the beneficial effects that:

1. the movable clamping block adopts a detachable design, has a simple structure, is convenient to disassemble and assemble, can realize the replacement and maintenance of the felting needle, improves the adaptability of the movable clamping block, and prolongs the service life of the movable clamping block.

2. The utility model optimizes and improves the prior puncture wire clamp, cancels a fixed clamping block in a C-shaped wire clamp seat in the prior art, reduces the number of the puncture needles, adopts the heat-treated puncture needles, has high integral hardness, and can easily puncture a 10kV high-voltage cable sheath, thereby ensuring that the puncture drainage can be in place and the pressure can be increased for convenient puncture.

3. The first ribs of the C-shaped wire clamp seat can not only play a role in reinforcing the structural strength of the C-shaped wire clamp seat, but also play a role in a guide rail, and ensure that the movable clamping block can slide up and down along the sliding part without derailing, so that the defects of the prior art are overcome, and the C-shaped wire clamp seat has the advantages of simple structure, reasonable design, strong practicability and the like.

Drawings

Fig. 1 is a schematic structural view of the puncture clamp of the present invention.

Fig. 2 is an exploded view of the puncture clamp of the present invention.

Fig. 3 is an exploded view of the movable clamp blocks and the adjusting screw of the present invention.

Fig. 4 is a schematic structural view of a C-type wire holder according to the present invention.

FIG. 5 is a schematic structural view of the clamping block body according to the present invention.

Fig. 6 is a schematic structural diagram of the capacitive voltage-dividing type power-taking device according to the present invention (the insulating operation rod and the second cylinder are not shown).

In the figure: 100. a puncture wire clamp; 110. c, a molded line clamp seat; 111. a clamping portion; 112. a sliding part; 113. an installation part; 114. a first rib; 115. a second rib; 116. a connecting portion; 1161. reinforcing ribs; 120. a movable clamping block; 121. a clamp block body; 1211. a through hole; 1212. blind holes; 1213. an annular recess; 1214. an arc-shaped groove; 1215. a chute; 1216. a weight reduction groove; 1217. a screw hole; 122. a needle; 1221. an annular boss; 123. closing the plate; 1231. a abdication gap; 130. Adjusting the screw rod; 140. an insulating operating rod; 150. mounting a plate; 151. a wire slot; 160. a first cylinder; 161. a limiting bump; 162. a constriction; 170. a second cylinder; 171. a channel; 172. a limiting groove; 1721. a horizontal segment; 1722. a vertical section; 173. a sloping table; 200. installing a base; 201. a grounding screw; 202. a low voltage lead; 300. getting a power insulator; 301. and a high-voltage lead.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth below in order to provide a thorough understanding of the present invention, but it will be apparent to those skilled in the art that the present invention may be practiced without these details.

Referring to fig. 1, a piercing connector 100 includes a C-shaped wire holder 110, a movable clamping block 120, an adjusting screw 130 and an insulating rod; the adjusting screw 130 is installed in the C-shaped clamp base 110 in a vertically movable manner, and has an upper end extending into the C-shaped clamp base 110 and provided with a movable clamping block 120 and a lower end detachably provided with an insulating rod. The adjusting screw 130 is driven to move up and down by rotating the insulating rod, so as to drive the movable clamping block 120 to move up and down in the C-shaped wire clamping seat 110, thereby clamping or loosening the wire.

Referring to fig. 1, 2, 3 and 5, the movable clamping block 120 includes a clamping block body 121, a lancet 122 and a sealing plate 123; the clamping block body 121 is provided with a plurality of through holes 1211 for mounting the puncture needle 122, and the bottom of the clamping block body 121 is provided with a blind hole 1212 for mounting the adjusting screw 130; the sealing plate 123 is provided with an abdicating notch 1231 for passing through the adjusting screw 130, and the sealing plate 123 is locked at the bottom of the clamping block body 121 by a bolt (not shown). When the fixing device is installed, the pricking pins 122 are firstly assembled in the through holes 1211, then the adjusting screws 130 are arranged in the blind holes 1212, and finally the sealing plate 123 is locked at the bottom of the clamping block body 121 through the bolts, so that the purpose of fixing the pricking pins 122 and the adjusting screws 130 is achieved. When the lancet 122 becomes worn or other types of probes need to be replaced, the sealing plate 123 can be quickly replaced by simply removing it. Therefore, the movable clamping block 120 of the utility model adopts a detachable design, has simple structure and convenient disassembly and assembly, can realize the replacement and maintenance of the puncture needle 122, improves the adaptability of the movable clamping block 120 and prolongs the service life of the movable clamping block 120.

Referring to FIGS. 3 and 5, the bottom of the lancet 122 is preferably provided with an annular boss 1221; the bottom of the clamp block body 121 is provided with an annular recess 1213 matching with the annular boss 1221, and a through hole 1211 is arranged in the annular recess 1213. The annular boss 1221 and the annular recess 1213 which are mutually matched are designed to play a role of limiting, so that the puncture needle 122 and the clamp block body 121 are firmly installed; secondly, the bottom of the clamp block body 121 can be kept flat, so that the sealing plate 123 can be installed conveniently, and the structure of the movable clamp block 120 is more exquisite and compact. In addition, the present invention heat-treats the lance 122 and enhances the overall hardness to ensure easy piercing of a 10kV high voltage cable jacket.

Referring to fig. 1, 2 and 4, the C-type wire holder 110 is an integrally formed structure having a holding portion 111, a sliding portion 112 and a mounting portion 113 for mounting a screw; an arc groove 1214 is formed on the upper end surface of the clamping block body 121, the arc groove 1214 and the clamping portion 111 form a clamping groove for clamping the conducting wire, and a plurality of puncture needles 122 for puncturing the conducting wire insulating layer are arranged in the arc groove 1214. The design of the clamping groove is beneficial to clamping the lead and ensuring smooth electricity taking.

Referring to fig. 1, 2 and 4, the inner side wall of the clamping block body 121 is provided with a sliding slot 1215 matched with the sliding part 112, so that the clamping block body 121 can slide up and down along the sliding part 112 more smoothly. The outer side wall of the clamp block body 121 is provided with a lightening groove 1216, so that the self weight of the clamp block body 121 can be lightened, and the production cost can be saved. Preferably, the slide slots 1215 and the weight-reducing slots 1216 are of the same structural design, thereby facilitating improved adaptability of the clamp block body 121.

Referring to fig. 1 to 4, inner peripheral edges of the grip part 111 and the slide part 112 are provided with first ribs 114; the clamping block body 121 is provided with limiting members at two sides of the sliding groove 1215, which are abutted against the first ribs 114. First ribs 114 not only serve to reinforce the structural strength of C-clamp mount 110, but also serve as a guide rail. The limiting member ensures that the clamp block body 121 slides up and down along the sliding portion 112 without derailing. The limiting member in the present embodiment is preferably a limiting bolt (not shown in the drawings); the movable clamping block 120 is provided with a screw hole 1217 for assembling a limit bolt at both sides of the sliding groove 1215. During installation, the sliding groove 1215 of the clamping block body 121 is firstly arranged outside the first rib 114, and then the limiting bolt is locked in the screw hole 1217, so that the bottom of the limiting bolt is abutted against the first rib 114, and the operation is simple and convenient.

Referring to fig. 1, 2 and 4, in order to further improve the structural strength of the C-type wire holder 110, the outer circumferential edges of the clamping portion 111 and the sliding portion 112 are provided with second ribs 115. Since the first ribs 114 simultaneously function as sliding rails and require high strength, the thickness of the first ribs 114 is greater than that of the second ribs 115.

Referring to fig. 1, 2 and 4, the piercing clip 100 further includes a mounting plate 150; the C-shaped wire holder 110 has a connecting portion 116, the mounting plate 150 is fixed to the connecting portion 116 by bolts, and a wire slot 151 for fixing a high-voltage lead is disposed on the mounting plate 150.

Referring to fig. 1, 2 and 4, the thickness of the connecting portion 116 is equal to the thickness of the second rib 115, and an upwardly extending rib 1161 is provided on the outer sidewall of the connecting portion 116, so that the structural strength of the C-type wire holder 110 is sufficiently ensured to prevent breakage.

Referring to fig. 1 to 3, the insulating rod includes an insulating operating rod 140, a first cylinder 160, and a second cylinder 170 sleeved outside the first cylinder 160; the first cylinder 160 is fixedly arranged at the lower end of the adjusting screw 130, and at least one limiting projection 161 is fixedly arranged on the outer side wall of the first cylinder 160; the second cylinder 170 is fixedly disposed at the upper end of the insulating operating rod 140, and the second cylinder 170 is provided with a channel 171 for passing through the limiting projection 161 and a limiting groove 172 for engaging the limiting projection 161. During installation, the limiting projection 161 of the first cylinder 160 is aligned with the channel 171 of the second cylinder 170, and enters the limiting groove 172 along the channel 171, so that the insulating operating rod 140 and the adjusting screw 130 can be fixedly connected; during the disassembly, the insulating operation rod 140 drives the second cylinder 170 to rotate, so that the limiting lug 161 and the limiting groove 172 are separated from each other, and then the second cylinder 170 is taken out downwards along the channel 171, and the disassembly and separation of the insulating operation rod 140 and the adjusting screw 130 can be realized. Therefore, the first cylinder 160 and the second cylinder 170 which are matched with each other in the utility model can realize the quick assembly and disassembly of the adjusting screw 130 and the insulating operating rod 140, and ensure that the insulating operating rod 140 can drive the adjusting screw 130 to rotate smoothly when being connected with each other, so that the movable clamping block 120 can be conveniently and accurately controlled to ascend and descend, the safety and the reliability of the electricity taking device can be provided, and the working efficiency can be improved.

Referring to fig. 1 and 2, preferably, the position-limiting groove 172 includes a horizontal section 1721 and a vertical section 1722, one end of the horizontal section 1721 is connected to the channel 171, and the other end is vertically provided with the vertical section 1722, so that the position-limiting groove 172 has an L-shaped structure. After connection, under the action of gravity of the insulating operating rod 140, the second cylinder 170 tends to move downward, so that the limiting bump 161 can be firmly clamped in the vertical section 1722; when the insulating operating rod 140 is rotated, the adjusting screw 130 can be driven to rotate synchronously by the limiting convex block 161, so that the movable clamping block 120 can be lifted up and down. When the dismounting is needed, the rotary insulating operating rod 140 needs to be pushed upwards with a little force, so that the vertical section 1722 and the limiting lug 161 are separated from each other, then the rotary insulating operating rod 140 is rotated along the horizontal section 1721, and the second cylinder 170 is pulled downwards along the channel 171. Therefore, the limiting groove 172 is ingenious in structural design, the adjusting screw 130 and the insulating operating rod 140 can be rapidly installed and separated, and the practicability is high. Besides this embodiment, the limiting groove 172 may be designed as a v-21274, i.e., the limiting groove 172 includes a horizontal segment 1721 and a vertical segment 1722, the middle of the horizontal segment 1721 is connected to the channel 171, and the vertical segments 1722 are vertically disposed at both ends of the horizontal segment 1721, which can be understood and implemented by those skilled in the art in combination with the above description, and will not be described herein again.

Referring to fig. 1 and 2, a spring (not shown) abutting against the first cylinder 160 is disposed inside the second cylinder 170, so that the limiting protrusion 161 is always clamped in the vertical section 1722 of the limiting groove 172 under the action of the spring, and when the second cylinder 170 is detached, the spring can eject the second cylinder 170 out of the channel 171, thereby achieving rapid and smooth detachment.

Referring to fig. 2, a constriction 162 is disposed at the lower end of the first cylinder 160; the inner side wall of the upper end of the second cylinder 170 is provided with a ramp 173 adapted to the constriction 162. Therefore, the second cylinder 170 can be conveniently sleeved outside the first cylinder 160, so as to improve the convenience of installation.

Referring to fig. 1 to 6, the present embodiment further describes a capacitive voltage-dividing type power-taking device capable of being installed in a live-line manner, which includes an installation base 200, a power-taking insulator 300, and the piercing connector 100 having the above-mentioned structure. Specifically, the mounting base 200 is provided with a grounding screw 201 and a low-voltage lead 6; the power-taking insulator 300 is fixedly arranged above the mounting base 200, the power-taking insulator 300 is connected to the puncture wire clamp 100 through a high-voltage lead 301, and in order to ensure power-taking safety, the high-voltage lead 301 is fixedly accommodated in the wire groove 151 and is connected to the movable clamping block 120 through other wires. When the utility model is used in outdoor work, the mounting base 200 can be fixed on the utility pole, and the power-taking action can be completed through the puncture wire clamp 100. The traditional electromagnetic type PT is got the electricity and is the power supply mode that equipment such as most distribution terminal adopted at present, because the limitation of technical principle itself, the trouble is higher easily to be damaged by the thunderbolt, and there are secondary side short circuit to produce safety problems such as overcurrent and ferromagnetic resonance moreover. The capacitance voltage-dividing type electricity taking device comprises a high-voltage capacitor, an energy taking coil, a rectifying and filtering circuit, a voltage adjusting circuit, a voltage stabilizing output circuit and the like, so that the problems of overcurrent, ferromagnetic resonance and the like of the traditional electromagnetic PT electricity taking can be effectively avoided, and the long-term reliable and stable operation is ensured.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using this concept shall fall within the scope of the present invention.

Claims (9)

1. A capacitive voltage-dividing type power taking device capable of being installed in an electrified mode comprises a puncture wire clamp, wherein the puncture wire clamp comprises a C-shaped wire clamp seat, a movable clamping block and an adjusting screw rod, and the movable clamping block is arranged in the C-shaped wire clamp seat in a vertically lifting mode through the adjusting screw rod; the method is characterized in that: the movable clamping block comprises a clamping block body, a puncture needle and a sealing plate; the clamping block body is provided with a plurality of through holes for mounting the felting needles, and the bottom of the clamping block body is provided with a blind hole for mounting the adjusting screw rod; the shrouding is equipped with and is used for passing adjusting screw's breach of stepping down, and the shrouding pass through the bolt lock in clamp splice body bottom.

2. The live-wire mountable capacitive voltage division type power take-off device according to claim 1, wherein: the bottom of the pricking pin is provided with an annular boss; the bottom of the clamping block body is provided with an annular concave part matched with the annular boss, and the annular concave part is internally provided with the through hole.

3. The live-wire mountable capacitive voltage division type power take-off device according to claim 1, wherein: the C-shaped wire clamp seat is provided with a clamping part, a sliding part and an installation part for installing the screw; the upper end face of the clamp block body is provided with an arc-shaped groove, the arc-shaped groove and the clamping portion form a clamp groove used for clamping a wire, and a plurality of puncture needles used for puncturing wire insulation layers are arranged in the arc-shaped groove.

4. The live-wire mountable capacitive voltage division type power take-off device according to claim 3, wherein: the inner side wall of the clamping block body is provided with a sliding groove matched with the sliding part.

5. The live-wire mountable capacitive voltage division type power take-off device according to claim 4, wherein: the inner peripheral edges of the clamping part and the sliding part are provided with raised first ribs; the clamp splice body is in the spout both sides are equipped with the locating part that first rib is inconsistent.

6. The capacitively-divided voltage type power take-off device capable of being live-wire mounted as claimed in claim 5, wherein: the limiting piece is a limiting bolt; and the movable clamping block is provided with a screw hole for assembling the limiting bolt on two sides of the sliding groove.

7. The live-wire mountable capacitive voltage division type power take-off device according to claim 5, wherein: the peripheral edge of clamping part and sliding part is equipped with bellied second rib to the thickness of first rib is greater than the thickness of second rib.

8. The live-wire mountable capacitive voltage division type power take-off device according to claim 1, wherein: the outer side wall of the clamping block body is provided with a weight reduction groove.

9. The live-wire mountable capacitive voltage division type power take-off device according to claim 1, wherein: the device also comprises an installation base and a power taking insulator; the electricity taking insulator is fixedly arranged on the mounting base and is connected with the puncture wire clamp through a high-voltage lead.

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