CN212062712U

CN212062712U - Power cable grounding device suitable for different sizes

Info

Publication number: CN212062712U
Application number: CN202020962638.4U
Authority: CN
Inventors: 陆新锋
Original assignee: Wuxi Zhihai Electric Appliance Installation Engineering Co ltd
Current assignee: Wuxi Zhihai Electric Appliance Installation Engineering Co ltd
Priority date: 2020-05-30
Filing date: 2020-05-30
Publication date: 2020-12-01
Anticipated expiration: 2030-05-30

Abstract

The utility model relates to a power cable earthing device suitable for unidimensional, it includes the loading board, one side of loading board is equipped with two backup pads that are parallel to each other, the loading board is hugged closely to the backup pad, be equipped with the fixed block on the loading board, the fixed block is worn to be equipped with the dwang in the backup pad, the pole of dwang is gone up fixed cover and is equipped with the spacing ring, it has the spacing hole that is used for holding the spacing ring to open on the fixed block, the spacing ring rotates to be connected in spacing hole, be equipped with on the fixed block and be used for locking the spacing ring at spacing downthehole fender lid, it establishes on the dwang to keep off lid sliding sleeve, the pole of dwang is gone up to have forward screw thread and reverse screw thread, forward screw thread and reverse screw thread respectively with a backup pad threaded connection, two relative. The utility model has the advantages of improve power cable earthing device application scope.

Description

Power cable grounding device suitable for different sizes

Technical Field

The utility model belongs to the technical field of earthing device's technique and specifically relates to a power cable earthing device suitable for not unidimensional is related to.

Background

According to the national regulation, before sawing the cable, a grounded iron drill rod with an insulating handle is needed to be nailed into the cable core, and the cable can work after no electricity is generated. In recent years, the number of 10KV cable lines in a distribution network is gradually increased, and the cable lines have no clear disconnection points, so that certain risks exist in the operation process of workers.

The existing Chinese patent with publication number CN203774511U discloses a cable grounding device, which comprises a fixing part at the end part of a cable, a grounding needle and a connecting part for electrically connecting the grounding needle with the fixing part, wherein the connecting part comprises a bracket fixed on the fixing part, a conductive connecting block connected with the bracket in a sliding way, an elastic part which is elastically supported between the bracket and the conductive connecting block and is used for pressing the conductive connecting block on the core part of the cable, the conductive connecting block is electrically connected with the grounding needle, and the fixing part comprises a first hoop arc in a semicircular arc shape, a second hoop arc in a semicircular arc shape and a fastener for fastening the first hoop arc and the second hoop arc together to form a complete arc-shaped hoop.

When the cable grounding device is used, the cable is hooped tightly through the first hoop arc and the second hoop arc, then the grounding needle is inserted into the ground, and the conductive connecting block abuts against the cable core. The current in the cable is guided into the underground through the conductive connecting block and the grounding pin, and personal safety of constructors is guaranteed.

The cable grounding device realizes the hooping of the cable through the first hoop arc and the second hoop arc, but the first hoop arc and the second hoop arc are of fixed sizes, so that the cable grounding device cannot be used for hooping cables with different diameters, and therefore the cable grounding device is small in application range and has obvious defects.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a be applicable to not unidimensional power cable earthing device has the advantage that improves power cable earthing device application scope.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a power cable grounding device suitable for different sizes comprises a bearing plate, wherein one side of the bearing plate is provided with two parallel supporting plates, the supporting plate is tightly attached to the bearing plate, a fixing block is arranged on the bearing plate, a rotating rod penetrates through the fixing block and the supporting plate in a rotating manner, a limit ring is fixedly sleeved on the rod body of the rotating rod, a limit hole for accommodating the limit ring is formed on the fixed block, the limiting ring is rotatably connected in the limiting hole, the fixing block is provided with a baffle cover used for locking the limiting ring in the limiting hole, the baffle cover is sleeved on the rotating rod in a sliding way, a forward thread and a reverse thread are turned on the rod body of the rotating rod, the forward thread and the reverse thread are respectively in threaded connection with one supporting plate, two opposite sides of the two supporting plates are respectively provided with a V-shaped clamping plate, and the V-shaped openings of the two clamping plates are opposite in direction;

the cable connector is characterized in that the loading plate is connected with a grounding needle through a wire, the supporting plates are provided with conductive needles in a sliding and penetrating mode, the conductive needles are parallel to a connecting line between the two supporting plates, the clamping plates and the supporting plates are provided with puncture holes for the conductive needles to penetrate through, and the supporting plates are provided with driving devices for driving the conductive needles to puncture cables.

Through adopting above-mentioned technical scheme, construction worker is at first through rotating the dwang for two clamp plates are kept away from each other, then places the cable between two clamp plates and the antiport dwang, makes two clamp plates draw close each other and press from both sides tight cable. The earth pin is inserted into the ground by a constructor, then the conductive pin is inserted into the cable through the driving device, the earth pin, the lead, the bearing plate, the supporting plate, the conductive pin and the cable form a loop, and the current in the cable is led into the ground, so that the possibility of electric shock of the constructor is reduced. Through setting up the clamp plate, can be applicable to the clamp of the great cable of multiple diameter tightly, consequently have the advantage that improves power cable earthing device application scope.

The present invention may be further configured in a preferred embodiment as: one side of backup pad is equipped with the sliding block, it has the groove of sliding that supplies the sliding block to slide to open on the loading board, the groove of sliding is on a parallel with the dwang, the sliding block is "T" type setting with the groove of sliding.

Through adopting above-mentioned technical scheme, the sliding fit in sliding block and sliding groove makes the process that two backup pads slided each other more stable.

The present invention may be further configured in a preferred embodiment as: one end of the rotating rod is provided with a rotating handle.

Through adopting above-mentioned technical scheme, the setting up of twist grip makes construction worker can conveniently rotate the dwang more.

The present invention may be further configured in a preferred embodiment as: the clamping plate is characterized in that a plurality of parallel inserting grooves are formed in the two sides of the clamping plate respectively, connecting lines among the inserting grooves are parallel to the length direction of the clamping plate, and the inserting grooves in the two clamping plates are arranged in a staggered mode.

By adopting the technical scheme, the two clamping plates can be mutually crossed when clamping the cable due to the arrangement of the insertion groove, so that the clamping plates can clamp the cable with smaller diameter, and the application range of the grounding device is further enlarged.

The present invention may be further configured in a preferred embodiment as: the dwang is located between clamping plate and the loading board.

Through adopting above-mentioned technical scheme, construction worker rotates the dwang, and two clamp plates keep away from each other, and when earthing device was used for cable length longer and not the position of tip, construction worker can be more convenient erect earthing device on the cable.

The present invention may be further configured in a preferred embodiment as: and a connecting plate is arranged between the supporting plate and the clamping plate, and the puncture hole penetrates through the connecting plate.

Through adopting above-mentioned technical scheme, the crisscross scope of two clamp plates has further been enlarged in the setting of connecting plate to make the clamp plate can press from both sides tightly the cable that the diameter is littleer, further improved earthing device's application scope.

The present invention may be further configured in a preferred embodiment as: the rubber pad is glued on the side wall of the opening of the clamping plate.

Through adopting above-mentioned technical scheme, when the cable was pressed from both sides to the clamping plate, the rubber pad compression was out of shape, and its self elasticity is used in the cable and the lateral wall of clamping plate to the possibility that relative slip takes place between cable and the clamping plate has been reduced. .

The present invention may be further configured in a preferred embodiment as: the fixed block is detachably connected with the bearing plate.

Through adopting above-mentioned technical scheme, the time presss from both sides tight cable on the clamp plate and can take place to warp, and construction worker can carry out the split to earthing device to the clamp plate to warp maintains.

To sum up, the utility model discloses a following beneficial technological effect:

1. the clamping plate is arranged, so that the clamping device can be suitable for clamping various cables with large diameters, and has the advantage of improving the application range of the power cable grounding device;

2. the arrangement of the insertion groove enables the two clamping plates to be mutually crossed when the cables are clamped, so that the clamping plates can clamp the cables with smaller diameters, and the application range of the grounding device is further widened.

Drawings

Fig. 1 is a schematic structural diagram for embodying the present invention;

fig. 2 is a schematic structural diagram for embodying the present invention;

fig. 3 is a schematic structural diagram for embodying the present invention;

fig. 4 is an exploded view for showing the connection relationship between the rotating lever, the rotating handle, the fixing block, the limit ring and the shield cover.

In the figure, 1, a bearing plate; 2. a support plate; 3. a fixed block; 4. rotating the rod; 5. a limiting ring; 6. a limiting hole; 7. a blocking cover; 8. a positive thread; 9. reverse threads; 10. a clamping plate; 11. a ground pin; 12. a conductive pin; 13. puncturing a hole; 14. a drive device; 15. a sliding block; 16. a sliding groove; 17. rotating the handle; 18. inserting grooves; 19. a connecting plate; 20. a rubber pad; 21. a support block; 22. a fixed seat; 23. a cylinder; 24. mounting a bar; 25. and (4) mounting the groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 3, for the utility model discloses a power cable earthing device suitable for not unidimensional, including loading board 1, one side of loading board 1 is equipped with two backup pads 2 that are parallel to each other, and loading board 1 is hugged closely to backup pad 2. One side welding of backup pad 2 has sliding block 15, and it has the groove 16 that slides that supplies sliding block 15 to slide to open on the loading board 1, and the setting of groove 16 that slides and sliding block 15 makes backup pad 2 more stable when sliding on loading board 1. The sliding block 15 and the sliding groove 16 are arranged in a T shape, and the possibility that the sliding block 15 is separated from the sliding groove 16 is reduced.

Referring to fig. 1 and 4, a fixed block 3 is bolted on the bearing plate 1, a rotating rod 4 is rotatably arranged on the fixed block 3 and the supporting plate 2 in a penetrating manner, and the rotating rod 4 is parallel to the sliding groove 16. The pole body of dwang 4 is overlapped and is equipped with spacing ring 5, and spacing ring 5 and dwang 4 welded fastening. The fixed block 3 is provided with a limiting hole 6 for accommodating the limiting ring 5, the limiting ring 5 is rotatably connected in the limiting hole 6, the fixed block 3 is bolted with a blocking cover 7 for locking the limiting ring 5 in the limiting hole 6, and the blocking cover 7 is slidably sleeved on the rotating rod 4.

Referring to fig. 1 and 4, during installation, an operator penetrates the rotating rod 4 through the fixing block 3 and the supporting plate 2, and the limiting ring 5 is located in the limiting hole 6. Then operating personnel will keep off lid 7 cover on dwang 4 and be close to fixed block 3, through the bolt with keep off lid 7 fastening connection on fixed block 3, dwang 4 can only rotate in fixed block 3, with fixed block 3 between can not take place relative movement. The bearing plate 1 is bolted with a supporting block 21, one end of the rotating rod 4, which is far away from the fixed block 3, rotates to penetrate through the supporting block 21, and the supporting block 21 plays a supporting role in the rotating rod 4.

Referring to fig. 1, a forward thread 8 and a reverse thread 9 are cut on the shaft of the rotating rod 4, the forward thread 8 and the reverse thread 9 are located between the supporting block 21 and the limiting ring 5, and the forward thread 8 and the reverse thread 9 are respectively in threaded connection with one supporting plate 2. Two opposite sides of the two supporting plates 2 are respectively provided with a V-shaped clamping plate 10, the V-shaped openings of the two clamping plates 10 are opposite, and a connecting line between the two clamping plates 10 is parallel to the rotating rod 4.

Referring to fig. 1, an operator rotates the rotating rod 4, and the two support plates 2 can be close to each other or gradually move away from each other by screwing the forward thread 8 and the reverse thread 9 on the rod body of the rotating rod 4 with one support plate 2 respectively. After an operator puts a cable between the two clamping plates 10, the rotating rod 4 is rotated, and the two clamping plates 10 are close to each other to clamp the cable, so that the cable is fastened. The one end welding of dwang 4 has turning handle 17, and turning handle 17's setting makes operating personnel more convenient when rotating dwang 4.

Referring to fig. 1 and 2, a grounding pin 11 is connected to the carrier plate 1 through a wire, a conductive pin 12 is slidably inserted into the support plate 2, and the conductive pin 12 is parallel to a connecting line between the two support plates 2. The clamping plate 10 and the supporting plate 2 are provided with puncture holes 13 for the conductive pins 12 to pass through, and one supporting plate 2 is provided with a driving device 14 for driving the conductive pins 12 to puncture the cable.

Referring to fig. 1, the driving device 14 includes a fixing seat 22 bolted to the supporting plate 2, the fixing seat 22 is located on a side of the supporting plate 2 facing away from the clamping plate 10, and the fixing seat 22 is disposed in a concave shape and opens toward the clamping plate 10. The fixed block 3 is bolted with an air cylinder 23, and an expansion link of the air cylinder 23 penetrates through the fixed seat 22 and is welded and fixed with the conductive pin 12. The ground, the grounding pin 11, the lead, the bearing plate 1, the supporting plate 2, the fixing seat 22, the cylinder 23, the conductive pin 12 and the cable form a loop, the grounding pin 11 is grounded, and the current in the cable is led into the ground, so that the possibility of electric shock of construction workers is reduced.

Referring to fig. 1, a plurality of parallel insertion grooves 18 are respectively formed on two sides of a clamping plate 10, a connecting line between the plurality of insertion grooves 18 is parallel to the length direction of the clamping plate 10, the length direction of the insertion grooves 18 is perpendicular to the length direction of the clamping plate 10, and the insertion grooves 18 on the two clamping plates 10 are arranged in a staggered manner. Due to the arrangement of the insertion grooves 18, when the two clamping plates 10 are closed, the two clamping plates can be staggered with each other, so that a cable with a small diameter can be clamped, and the application range of the grounding device is widened.

Referring to fig. 2, a connecting plate 19 is arranged between the supporting plate 2 and the clamping plate 10, and the connecting plate 19 is perpendicular to the supporting plate 2 and is welded and fixed. The tip of the clamping plate 10 facing the supporting plate 2 is welded with a mounting bar 24 along the length direction, one side of the connecting plate 19 facing the clamping plate 10 is provided with a mounting groove 25 for the mounting bar 24 to insert, the connecting plate 19 is bolted with the mounting bar 24, and the puncture hole 13 penetrates through the connecting plate 19. The arrangement of the connecting plate 19 can further expand the staggering range between the two clamping plates 10, so that the grounding device is suitable for cables with smaller diameters, and the application range of the grounding device is improved.

Referring to fig. 2, a rubber pad 20 is glued to the side wall of the opening of the clamping plate 10, and when the clamping plate 10 clamps the cable, the rubber pad 20 is deformed under pressure, and its own elastic force acts on the side wall of the clamping plate 10 and the cable, thereby reducing the possibility of relative sliding between the cable and the clamping plate 10. The rubber pad 20 also increases the contact area with the cable, increases the static friction force, and further reduces the possibility of relative sliding between the cable and the clamping plate 10.

With reference to fig. 2, the swivelling levers 4 are located between the clamping plate 10 and the carrier plate 1. When the length of cable is longer and the position that needs ground connection is not located its both ends, constructor rotates dwang 4 for two clamp plates 10 keep away from each other and produce the interval, and at this moment, constructor can directly erect earthing device on the cable, and the cable gets into from between two clamp plates 10 lateral walls, thereby makes earthing device convenience more when using.

Referring to fig. 1 and 2, the clamping plate 10 may be deformed or broken due to excessive stress after long-term use, and an operator can repair or replace the damaged clamping plate 10 through the detachable connection of the supporting block 21, the fixed block 3 and the bearing plate 1 and the detachable connection of the mounting bar 24 and the mounting groove 25.

The implementation principle of the embodiment is as follows: the constructor first makes the two clamping plates 10 be away from each other by rotating the handle 17, then erects the grounding device on the cable and rotates the rotating handle 17 in the opposite direction, makes the two clamping plates 10 be close to each other and clamps the cable. The construction worker inserts the grounding pin 11 underground, then starts the cylinder 23, and the telescopic link of the cylinder 23 stretches out, inserts the conducting pin 12 in the cable, and the earth, the grounding pin 11, the wire, the loading board 1, the sliding block 15, the supporting plate 2, the fixing base 22, the cylinder 23, the conducting pin 12, the cable form a return circuit, and the current in the cable is led into underground, so that the possibility of electric shock of the construction worker is reduced. Through setting up the clamp plate 10, two clamp plates 10 can crisscross each other, and the diameter is great and less cable can both realize pressing from both sides tightly, consequently has the advantage that improves power cable earthing device application scope.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A power cable earthing device suitable for not unidimensional, its characterized in that: comprises a bearing plate (1), one side of the bearing plate (1) is provided with two mutually parallel supporting plates (2), the bearing plate (1) is tightly attached to the supporting plates (2), a fixing block (3) is arranged on the bearing plate (1), a rotating rod (4) is arranged on the fixing block (3) and the supporting plate (2) in a rotating mode in a penetrating mode, a limiting ring (5) is fixedly sleeved on the rod body of the rotating rod (4), a limiting hole (6) used for containing the limiting ring (5) is formed in the fixing block (3), the limiting ring (5) is connected in the limiting hole (6) in a rotating mode, a blocking cover (7) used for locking the limiting ring (5) in the limiting hole (6) is arranged on the fixing block (3), the blocking cover (7) is sleeved on the rotating rod (4) in a sliding mode, a forward thread (8) and a reverse thread (9) are turned on the rod body, the forward thread (8) and the reverse thread (9) are respectively in threaded connection with one supporting plate (2), two opposite sides of the two supporting plates (2) are respectively provided with a V-shaped clamping plate (10), and the V-shaped openings of the two clamping plates (10) are opposite in direction;

be connected with ground pin (11) through the wire on loading board (1), slide on backup pad (2) and wear to be equipped with conductive needle (12), conductive needle (12) are on a parallel with the line between two backup pads (2), it has puncture hole (13) that supply conductive needle (12) to pass to open on clamp plate (10), backup pad (2), be equipped with drive arrangement (14) that are used for driving conductive needle (12) puncture cable on backup pad (2).

2. A power cable grounding device adapted for different sizes according to claim 1, wherein: one side of backup pad (2) is equipped with sliding block (15), it has the groove of sliding (16) that supplies sliding block (15) to slide to open on loading board (1), sliding groove (16) are on a parallel with dwang (4), sliding block (15) and sliding groove (16) are "T" type setting.

3. A power cable grounding device adapted for different sizes according to claim 1, wherein: one end of the rotating rod (4) is provided with a rotating handle (17).

4. A power cable grounding device adapted for different sizes according to claim 1, wherein: the clamping plate is characterized in that a plurality of parallel inserting grooves (18) are respectively formed in two sides of the clamping plate (10), connecting lines among the inserting grooves (18) are parallel to the length direction of the clamping plate (10), and the inserting grooves (18) on the two clamping plates (10) are arranged in a staggered mode.

5. A power cable grounding device adapted for different sizes according to claim 1, wherein: the rotating rod (4) is located between the clamping plate (10) and the bearing plate (1).

6. A power cable grounding device adapted for different sizes according to claim 1, wherein: a connecting plate (19) is arranged between the supporting plate (2) and the clamping plate (10), and the puncture hole (13) penetrates through the connecting plate (19).

7. A power cable grounding device adapted for different sizes according to claim 1, wherein: the side wall of the opening of the clamping plate (10) is glued with a rubber pad (20).

8. A power cable grounding device adapted for different sizes according to claim 1, wherein: the fixing block (3) is detachably connected with the bearing plate (1).