CN214378894U

CN214378894U - Extra-high voltage substation grounding wire safety control locking device

Info

Publication number: CN214378894U
Application number: CN202120698268.2U
Authority: CN
Inventors: 郭家晨; 尹晓海
Original assignee: Maintenance Branch of State Grid Shanxi Electric Power Co Ltd
Current assignee: Maintenance Branch of State Grid Shanxi Electric Power Co Ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-10-08
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses an extra-high voltage substation earth connection safety management and control locking device, including the earth bar stick head, first recess and first through-hole have been seted up respectively to earth bar stick head one side, the earth bar stick head is equipped with the nut in first recess inside, the outside cover of nut one end is equipped with the copper wire ear, copper wire ear bottom is equipped with the earth connection, and copper wire ear one side outside is equipped with the gasket, and gasket one side outside is equipped with first bolt. Compared with the prior art, the utility model discloses whether it is not hard up to utilize miniature pressure sensor to detect out the copper wire ear to can control electric putter machine drive rack and remove and make first bolt automatic turn round tightly, thereby avoid using manual operation, utilize the connecting rod slidable, whether make the steerable club head clamp splice press from both sides tight or not hard up the length of high-voltage line function longer, thereby make things convenient for the following staff can directly rotate the hand wheel, adjust club head clamp splice elasticity degree, the cover noose is outside at the second bolt, can avoid the automatic outside roll-off of connecting rod.

Description

Extra-high voltage substation grounding wire safety control locking device

Technical Field

The utility model relates to an earth connection technical field especially relates to an extra-high voltage substation earth connection safety management and control locking ware.

Background

The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The substations in the power plant are step-up substations, which are used to boost up the electrical energy generated by the generator and feed it into the high-voltage network.

Through the retrieval, chinese patent publication is CN 209434413U's patent, discloses an extra-high voltage substation earth connection safety management and control locking device, including the ground connection stake, set up the through-hole on the ground connection stake, the inside kingbolt that pegs graft of through-hole, the lead screw and the through-hole cooperation of kingbolt set up gasket, butterfly nut, spring and second nut on the kingbolt, the utility model discloses detection device has been increased between ground connection stake and gasket, and detection device can respond to the switch-on condition of first current conducting plate and second current conducting plate, and when gasket and butterfly nut appear slightly not hard up, the spring can utilize elasticity to promote gasket and butterfly nut and ground connection stake and keep the laminating state to the phenomenon device of striking sparks appears easily between avoiding ground connection stake and the gasket.

An extra-high voltage substation earth connection safety management and control locking device in above-mentioned patent exists following not enough: when the gasket and the butterfly nut are detected to be loosened by using the detection device, the gasket cannot be automatically and tightly attached to the grounding pile, manual treatment is required, automation is not high, and certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the special high voltage substation earth connection safety management and control locking ware that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an extra-high voltage substation grounding wire safety control locking device comprises a grounding rod head, wherein one side of the grounding rod head is respectively provided with a first groove and a first through hole, the grounding rod head is provided with a nut inside the first groove, the outside of one end of the nut is sleeved with a copper wire lug, the bottom of the copper wire lug is provided with a grounding wire, the outside of one side of the copper wire lug is provided with a gasket, the outside of one side of the gasket is provided with a first bolt, the first bolt is rotatably connected with the nut through threads, the outside of the other side of the grounding rod head is fixedly connected with a plurality of insulating fixed rods, the outside of one end of each insulating fixed rod is fixedly connected with a miniature pressure sensor, the outside of one side of the miniature pressure sensor is provided with an insulating contact, the outside of one end of the insulating contact penetrates through the first through hole to be fixedly connected with one side of the copper wire lug, the bottom of the grounding rod head is provided with an insulating grounding rod, the insulation ground rod is characterized in that an insulation board is fixedly connected to the upper portion of one side of the insulation ground rod, a second through hole is formed in the insulation board, an electric push rod machine is fixedly connected to the inner wall of the second through hole through the insulation board, the electric push rod machine is electrically connected with the miniature pressure sensor, a rack is fixedly connected to the outer portion of the top end of the electric push rod machine, a gear is arranged on one side of the rack, the gear and the rack are meshed with each other, a rotating rod is fixedly connected to the outer portion of one side of the gear, and one end of the rotating rod is fixedly connected with a first bolt.

Furthermore, a third through hole is formed inside the insulating ground rod, a stand column is arranged inside the third through hole of the insulating ground rod, a threaded screw rod is fixedly connected to the outside of the top end of the stand column, a fourth through hole is formed in the bottom of the ground rod head, an internal thread is formed inside the fourth through hole, and the ground rod head is rotatably connected with the threaded screw rod through a thread inside the fourth through hole.

Furthermore, the outside fixedly connected with stick head clamp splice in screw lead screw top, and stick head clamp splice one side outside sliding connection have the slide rail, and slide rail one side outside and earth bar stick head one side fixed connection.

Further, the stand is internally provided with a circular groove, and the stand is provided with sliding grooves on the inner walls of two sides of the circular groove.

Furthermore, the inside sliding connection of spout has spacing slider, fixedly connected with connecting rod between the spacing slider.

Furthermore, a fifth through hole is formed in one side of the bottom of the upright column, an internal thread is formed inside the fifth through hole, and the upright column is rotatably connected with a second bolt inside the fifth through hole through the thread.

Furthermore, a hand wheel is sleeved outside the bottom end of the connecting rod.

Furthermore, a sleeve rope is arranged between the hand wheel and the second bolt.

The utility model has the advantages that:

1. by arranging the miniature pressure sensor, the gear and the rack, firstly closing an external power supply to start the electric push rod machine and the miniature pressure sensor, sleeving the copper wire lug on the nut, penetrating the insulating contact through the first through hole to contact the miniature pressure sensor, covering the gasket on the copper wire lug, fixing the copper wire lug on the grounding rod head by rotating the first bolt, extruding the miniature pressure sensor by using the insulating contact at the moment, generating a certain pressure value by using the miniature pressure sensor, driving the insulating contact to move outwards by using the copper wire lug when the copper wire lug and the grounding rod head are loosened, leading the pressure value measured by the miniature pressure sensor to be reduced, detecting the change of the pressure value by the miniature pressure sensor at the moment, converting the pressure value into an electric signal by the internal conversion element and transmitting the electric signal to the electric push rod machine, receiving the electric signal by the electric push rod machine and driving the rack to move upwards at the moment, the rack is meshed with the gear, the gear is driven by the rack to rotate, the gear drives the first bolt to rotate through the rotating rod to press the copper wire lug on the grounding rod head, so that the copper wire lug and the grounding rod head can be attached more closely, whether the copper wire lug is loosened can be detected by using the miniature pressure sensor, and the electric push rod machine can be controlled to drive the rack to move when the copper wire lug is loosened so that the first bolt is automatically screwed tightly, so that manual operation is avoided, time and labor are consumed, and certain electric shock risks exist due to potential safety hazards;

2. by arranging the upright post and the connecting rod, when the grounding rod head is required to contact a high-voltage wire, the rod head clamping block is firstly contacted with the bottom of the high-voltage wire, the connecting rod drives the limiting slide block to move downwards in the chute under the action of self gravity, the length of the connecting rod is fixed by rotating the second bolt, the connecting rod is driven to rotate by the rotating hand wheel, the upright post and the threaded screw rod are driven to rotate by the connecting rod, the threaded screw rod drives the rod head clamping block to move upwards due to the relationship between threads, the high-voltage wire can be fixedly clamped, the connecting rod can slide up and down in the upright post, the length for controlling whether the rod head clamping block clamps or loosens the high-voltage wire can be longer, so that a worker at the bottom can directly rotate the hand wheel to adjust the tightness degree of the rod head clamping block, and the worker is prevented from climbing up the high-voltage wire again to rotate the insulating grounding rod, the construction method has the advantages that the construction method is complicated in steps, low in construction efficiency and unsafe;

3. through setting up the noose, utilize to install the noose in hand wheel one side, when the length that does not need to change the connecting rod, overlap the noose outside the second bolt, can avoid the automatic outside roll-off of connecting rod to the influence is carried and is transported.

Drawings

Fig. 1 is a front view of a safety control locking device for an extra-high voltage substation ground wire provided in embodiment 1;

fig. 2 is a front view of a safety control locking device for an extra-high voltage substation grounding wire provided in embodiment 1;

fig. 3 is a partial side view of a safety control locking device for an extra-high voltage substation ground wire provided in embodiment 1;

fig. 4 is a front view of the safety control locking device for the ground wire of the extra-high voltage substation provided in embodiment 2.

In the figure: 1-grounding rod head, 2-upright post, 3-chute, 4-connecting rod, 5-limiting slide block, 6-threaded screw rod, 7-rod head clamping block, 8-slide rail, 9-insulating grounding rod, 10-nut, 11-gasket, 12-copper wire lug, 13-grounding wire, 14-first bolt, 15-rotating rod, 16-gear, 17-insulating fixed rod, 18-insulating contact, 19-miniature pressure sensor, 20-second bolt, 21-hand wheel, 22-rack, 23-insulating plate, 24-electric push rod machine and 25-rope sleeving.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-3, an extra-high voltage substation ground wire safety control locking device comprises a ground rod head 1, and is characterized in that a first groove and a first through hole are respectively formed in one side of the ground rod head 1, a nut 10 is arranged in the first groove of the ground rod head 1, a copper lug 12 is sleeved outside one end of the nut 10, a ground wire 13 is arranged at the bottom of the copper lug 12, a gasket 11 is arranged outside one side of the copper lug 12, a first bolt 14 is arranged outside one side of the gasket 11, the first bolt 14 is rotatably connected with the nut 10 through threads, a plurality of insulating fixing rods 17 are fixedly connected outside the other side of the ground rod head 1, an HZC-30A type micro pressure sensor 19 is fixedly connected outside one end of each insulating fixing rod 17, an insulating contact 18 is arranged outside one side of the HZC-30A type micro pressure sensor 19, and the outside of one end of the insulating contact 18 penetrates through the first through hole and is fixedly connected with one side of the copper wire lug 12, the bottom of the ground rod head 1 is provided with an insulating ground rod 9, the upper part of one side of the insulating ground rod 9 is fixedly connected with an insulating plate 23, a second through hole is arranged inside the insulating plate 23, the inner wall of the second through hole of the insulating plate 23 is fixedly connected with an ANT-26 type electric push rod machine 24, the electric push rod machine 24 is electrically connected with the micro pressure sensor 19, the outside of the top end of the electric push rod machine 24 is fixedly connected with a rack 22, one side of the rack 22 is provided with a gear 16, the gear 16 is meshed with the rack 22, the outside of one side of the gear 16 is fixedly connected with a rotating rod 15, the outside of one end of the rotating rod 15 is fixedly connected with the first bolt 14, through the arrangement of the micro pressure sensor 19, the gear 16 and the rack 22, firstly, an external power supply is closed to start the electric push rod machine 24 and the micro pressure sensor 19, meanwhile, the copper wire lug 12 is sleeved on the nut 10, the insulating contact 18 penetrates through the first through hole to contact the micro pressure sensor 19, the gasket 11 is covered on the copper wire lug 12, the copper wire lug 12 is fixed on the grounding rod head 1 by rotating the first bolt 14, the micro pressure sensor 19 is extruded by the insulating contact 18 at the moment, the micro pressure sensor 19 generates a certain pressure value, when the copper wire lug 12 and the grounding rod head 1 are loosened, the copper wire lug 12 drives the insulating contact 18 to move outwards, so that the pressure value measured by the micro pressure sensor 19 is reduced, the micro pressure sensor 19 detects the change of the pressure value at the moment, the internal conversion element converts the pressure value into an electric signal and transmits the electric signal to the electric push rod machine 24, the electric push rod machine 24 receives the electric signal and drives the rack 22 to move upwards, and due to the meshing between the rack 22 and the gear 16, rack 22 drives gear 16 and rotates, gear 16 drives first bolt 14 through bull stick 15 and rotates and press copper wire ear 12 on earth bar stick head 1, thereby can make and closely laminate between copper wire ear 12 and the earth bar stick head 1 more, utilize miniature pressure sensor 19 to detect out whether copper wire ear 12 is not hard up, can control electric putter machine 24 and drive rack 22 and remove and make first bolt 14 turn round tightly automatically when copper wire ear 12 is not hard up, thereby avoid using manual operation, not only consuming time and power, and there is certain electric shock risk in the potential safety hazard.

Wherein, a third through hole is arranged inside the insulating grounding rod 9, the insulating grounding rod 9 is provided with a stand column 2 inside the third through hole, the outside of the top end of the stand column 2 is fixedly connected with a threaded screw rod 6, the bottom of the grounding rod head 1 is provided with a fourth through hole, the inside of the fourth through hole is provided with an internal thread, the grounding rod head 1 is rotatably connected with the threaded screw rod 6 through a thread inside the fourth through hole, the outside of the top end of the threaded screw rod 6 is fixedly connected with a rod head clamping block 7, the outside of one side of the rod head clamping block 7 is slidably connected with a slide rail 8, the outside of one side of the slide rail 8 is fixedly connected with one side of the grounding rod head 1, a circular groove is arranged inside the stand column 2, the inner walls of the two sides of the circular groove are both provided with a slide groove 3, the inside of the slide groove 3 is slidably connected with a limiting slide block 5, and a connecting rod 4 is fixedly connected between the limiting slide blocks 5, the grounding rod head 1 is contacted with a high-voltage wire by arranging the upright post 2 and the connecting rod 4, firstly, the rod head clamping block 7 is contacted with the bottom of the high-voltage wire, meanwhile, the connecting rod 4 drives the limit slide block 5 to move downwards in the sliding groove 3 under the action of self gravity, and the length of the connecting rod 4 is fixed by rotating the second bolt 20, at the moment, the hand wheel 21 is rotated to drive the connecting rod 4 to rotate, and the upright post 2 and the threaded screw rod 6 are driven to rotate by the connecting rod 4, because the relation between the screw thread, screw lead screw 6 drives excellent first clamp splice 7 rebound this moment, can be with the fixed centre gripping of high-voltage line, utilize connecting rod 4 can slide about stand 2 is inside, whether can make steerable excellent first clamp splice 7 press from both sides tightly or not become flexible the length of high-voltage line function longer, thereby make things convenient for the following staff can directly rotate hand wheel 21, adjust excellent first clamp splice 7 elasticity degree, avoid the staff to climb up high-voltage line once more and rotate insulating earth bar 9, not only the loaded down with trivial details efficiency of construction of step is not high, and is unsafe.

The working principle is as follows: firstly, an external power supply is closed to start an electric push rod machine 24 and a micro pressure sensor 19, a copper wire lug 12 is sleeved on a nut 10, an insulating contact 18 penetrates through a first through hole to contact the micro pressure sensor 19, then a gasket 11 covers the copper wire lug 12, the copper wire lug 12 is fixed on a grounding rod head 1 by rotating a first bolt 14, at the moment, the insulating contact 18 is utilized to press the micro pressure sensor 19, the micro pressure sensor 19 generates a certain pressure value, when the copper wire lug 12 and the grounding rod head 1 are loosened, the copper wire lug 12 drives the insulating contact 18 to move outwards, the pressure value measured by the micro pressure sensor 19 is reduced, at the moment, the micro pressure sensor 19 detects the change of the pressure value, an internal conversion element converts the pressure value into an electric signal and transmits the electric signal to the electric push rod machine 24, at the moment, the electric push rod machine 24 receives the electric signal and drives a rack 22 to move upwards, because the rack 22 is meshed with the gear 16, the rack 22 drives the gear 16 to rotate, the gear 16 drives the first bolt 14 to rotate through the rotating rod 15 to press the copper wire lug 12 on the grounding rod head 1, so that the copper wire lug 12 and the grounding rod head 1 can be more tightly attached, whether the copper wire lug 12 is loosened or not can be detected by the miniature pressure sensor 19, when the copper wire lug 12 is loosened, the electric push rod machine 24 can be controlled to drive the rack 22 to move so that the first bolt 14 is automatically tightened, manual operation is avoided, time and labor are consumed, and certain electric shock risks exist in potential safety hazards.

By arranging the upright post 2 and the connecting rod 4, when the grounding rod head 1 is required to contact a high-voltage wire, firstly, the rod head clamping block 7 is contacted with the bottom of the high-voltage wire, meanwhile, the connecting rod 4 drives the limiting slide block 5 to move downwards in the chute 3 under the action of self gravity, the length of the connecting rod 4 at the moment is fixed by rotating the second bolt 20, at the moment, the rotating hand wheel 21 drives the connecting rod 4 to rotate, and the connecting rod 4 drives the upright post 2 and the threaded screw rod 6 to rotate, because of the relationship between threads, the threaded screw rod 6 drives the rod head clamping block 7 to move upwards at the moment, so that the high-voltage wire can be fixedly clamped, the connecting rod 4 can slide up and down in the upright post 2, whether the rod head clamping block 7 is clamped or loosened can be controlled to have longer length, and therefore, workers at the bottom can directly rotate the hand wheel 21 to adjust the tightness degree of the rod head clamping block 7, avoid the staff to climb up again and rotate insulating earth bar 9 on the high gas line, not only the loaded down with trivial details construction efficiency of step is not high, and is unsafe moreover.

Example 2

Referring to fig. 4, an extra-high voltage substation earth connection safety management and control locking device, this embodiment compares in embodiment 1, in order to avoid connecting rod 4 automatic outwards roll-off, be equipped with the noose 25 between hand wheel 21 and the second bolt 20, through setting up the noose 25, utilize and install the noose 25 in hand wheel 21 one side, when the length that need not change connecting rod 4, overlap the noose 25 outside the second bolt 20, can avoid connecting rod 4 automatic outwards roll-off to the influence is carried and is transported.

Through setting up the noose 25, utilize and install the noose 25 in hand wheel 21 one side, when need not change the length of connecting rod 4, overlap the noose 25 at the second bolt 20 outside, can avoid the automatic outside roll-off of connecting rod 4 to the influence is carried and is transported.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An extra-high voltage substation grounding wire safety control locking device comprises a grounding rod head (1) and is characterized in that a first groove and a first through hole are formed in one side of the grounding rod head (1) respectively, a nut (10) is arranged inside the first groove of the grounding rod head (1), a copper wire lug (12) is sleeved outside one end of the nut (10), a grounding wire (13) is arranged at the bottom of the copper wire lug (12), a gasket (11) is arranged outside one side of the copper wire lug (12), a first bolt (14) is arranged outside one side of the gasket (11), the first bolt (14) is rotatably connected with the nut (10) through threads, a plurality of insulating fixing rods (17) are fixedly connected to the outside of the other side of the grounding rod head (1), and a miniature pressure sensor (19) is fixedly connected to the outside of one end of each insulating fixing rod (17), the miniature pressure sensor is characterized in that an insulating contact (18) is arranged outside one side of the miniature pressure sensor (19), one end of the insulating contact (18) penetrates through a first through hole and is fixedly connected with one side of the copper wire lug (12), an insulating grounding rod (9) is arranged at the bottom of the grounding rod head (1), an insulating plate (23) is fixedly connected above one side of the insulating grounding rod (9), a second through hole is formed in the insulating plate (23), an electric push rod machine (24) is fixedly connected to the inner wall of the second through hole of the insulating plate (23), the electric push rod machine (24) is electrically connected with the miniature pressure sensor (19), a rack (22) is fixedly connected to the outside of the top end of the electric push rod machine (24), a gear (16) is arranged on one side of the rack (22), the gear (16) is meshed with the rack (22), a rotating rod (15) is fixedly connected to the outside of one side of the gear (16), and the outer part of one end of the rotating rod (15) is fixedly connected with the first bolt (14).

2. The safety control locking device for the ground wire of the extra-high voltage substation according to claim 1, characterized in that a third through hole is formed inside the insulating ground rod (9), a stand column (2) is arranged inside the third through hole of the insulating ground rod (9), a threaded screw rod (6) is fixedly connected to the outside of the top end of the stand column (2), a fourth through hole is formed in the bottom of the ground rod head (1), an internal thread is formed inside the fourth through hole, and the ground rod head (1) is rotatably connected with the threaded screw rod (6) through the thread inside the fourth through hole.

3. The safety control locking device for the ground wire of the extra-high voltage substation according to claim 2, wherein a rod head clamping block (7) is fixedly connected to the outside of the top end of the threaded screw rod (6), a sliding rail (8) is slidably connected to the outside of one side of the rod head clamping block (7), and the outside of one side of the sliding rail (8) is fixedly connected with one side of the ground rod head (1).

4. The safety control locking device for the ground wire of the extra-high voltage substation according to claim 3, characterized in that a circular groove is formed in the column (2), and sliding grooves (3) are formed in the inner walls of the column (2) on two sides of the circular groove.

5. The safety control locking device for the ground wire of the extra-high voltage substation according to claim 4, wherein limiting sliding blocks (5) are connected inside the sliding grooves (3) in a sliding mode, and connecting rods (4) are fixedly connected between the limiting sliding blocks (5).

6. The safety control locking device for the ground wire of the extra-high voltage substation according to claim 5, characterized in that a fifth through hole is formed in one side of the bottom of the upright post (2), an internal thread is formed in the interior of the fifth through hole, and a second bolt (20) is rotatably connected to the interior of the fifth through hole through the thread of the upright post (2).

7. The safety control locking device for the ground wire of the extra-high voltage substation according to claim 6, characterized in that a hand wheel (21) is sleeved outside the bottom end of the connecting rod (4).

8. The safety control looseness preventer according to the ground wire of the extra-high voltage substation according to claim 7, wherein a loop rope (25) is arranged between the hand wheel (21) and the second bolt (20).