CN211265729U - High-voltage transmission tower grounding device - Google Patents
High-voltage transmission tower grounding device Download PDFInfo
- Publication number
- CN211265729U CN211265729U CN202020393044.6U CN202020393044U CN211265729U CN 211265729 U CN211265729 U CN 211265729U CN 202020393044 U CN202020393044 U CN 202020393044U CN 211265729 U CN211265729 U CN 211265729U
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- pipe
- voltage transmission
- reel
- grounding
- central
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Abstract
The utility model discloses a high-voltage transmission shaft tower earthing device relates to earth connection technical field, and the main objective improves the work efficiency that high-voltage transmission line overhauld. The utility model discloses a main technical scheme does: high-voltage transmission tower earthing device, the device includes: a grounding part and a wire releasing part; the grounding part comprises a pipe nut clamp, a central pipe, a reel and a grounding wire, the central pipe penetrates through the center of the reel, the pipe nut clamp is arranged at one end of the central pipe, one end of the grounding wire is connected to the pipe nut clamp, the other end of the grounding wire penetrates through the pipe wall of the central pipe, and the other end of the grounding wire is wound on the reel; the unwrapping wire portion includes tight pulley and fixed band, and the both ends of fixed band are connected respectively in the tight pulley for be fixed in the waist with the tight pulley, the center of tight pulley is equipped with the bearing hole, and the other end rotation of center tube is connected in the bearing hole.
Description
Technical Field
The utility model relates to an earth connection technical field especially relates to a high-voltage transmission shaft tower earthing device.
Background
For a high-voltage transmission line, the safety of the high-voltage transmission line plays an important role in the safety of a power supply network in China, and is related to the overall power supply quality in China.
The transformer substation bus adopts aluminium pipe bus in a large number, and when the bus has a power failure and overhauls, the bus is influenced by adjacent bus, cross-route drainage wire, and although the both ends of the power failure bus are grounded, because the pipe bus length is longer, the induced electricity is still very strong when the operation is carried out on the pipe bus, and the damage of electric shock is easily generated to the human body. Because the pipe bus is a hard bus, the diameter is thick, the installation position is high, the length of the traditional grounding wire is insufficient, and the conductor end cannot be fixed on the traditional grounding wire; in the prior art, in order to prevent induced electricity from injuring people in the maintenance process, the grounding wire is fixed on the pipe nut in a winding mode, the winding type installation is difficult to ensure good contact, and the grounding wire is easy to fall off and has poor effect.
The grounding wire is mainly used for power failure maintenance work of 110kV-220kV lines, is used for connecting a grounding body and a wire, is used for preventing an adjacent charged body from generating electrostatic induction electric shock or ensuring safety when switching on by mistake, and is an essential tool for maintenance of a power transmission line. In the power maintenance in-process, need hang the earth connection usually, however the electric power maintenance work is generally outdoor, and outdoor often can meet wind, and natural environment can exert an influence to the earth connection, and the circuit of overhauing the environment simultaneously is generally more complicated, therefore foretell factor has formed the hidden danger to maintainer's personal safety, has brought the burden for maintenance work, and maintenance efficiency is low.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a high tension transmission shaft tower earthing device, the main objective improves the work efficiency that high-tension line overhauld.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
the utility model provides a high-voltage transmission shaft tower earthing device, the device includes: a grounding part and a wire releasing part;
the grounding part comprises a pipe nut clamp, a central pipe, a reel and a grounding wire, the central pipe penetrates through the center of the reel, the pipe nut clamp is arranged at one end of the central pipe, one end of the grounding wire is connected to the pipe nut clamp, the other end of the grounding wire penetrates through the pipe wall of the central pipe, and the other end of the grounding wire is wound on the reel;
the paying-off part comprises a fixed wheel and a fixed belt, two ends of the fixed belt are respectively connected with the fixed wheel and used for fixing the fixed wheel on the waist, a bearing hole is formed in the center of the fixed wheel, and the other end of the central pipe is rotatably connected with the bearing hole.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Optionally, the central tube is mounted in the bearing hole through a bearing, an axial protrusion is arranged on the outer side of the tube wall of the central tube, an axial groove is formed in the inner ring of the bearing, and the axial protrusion is embedded in the axial groove.
Optionally, the paying-off part further comprises a socket rod, the other end of the central tube penetrates through the bearing hole, a radial hole is formed in the other end side of the central tube, and the socket rod is inserted into the radial hole.
Optionally, one end of the insertion rod is connected to the first magnet, an annular groove is formed in the edge of the radial hole, a second magnet is embedded in the annular groove, and the other end of the insertion rod is inserted into the radial hole and used for enabling the first magnet and the second magnet to attract each other.
Optionally, the fixed wheel with the pipe wall of center tube between the reel is connected in the one end of joint spare, the fixed wheel towards a side of reel is equipped with interior ratchet, the other end top of joint spare connect in interior ratchet is used for making center tube unidirectional rotation.
Optionally, the inner edge of the inner ratchet wheel is provided with a toothed portion and a non-toothed portion, the toothed portion and the non-toothed portion are circumferentially distributed around the inner ratchet wheel at intervals, and the other end of the clamping member abuts against a tooth groove of the toothed portion.
Optionally, the pipe wall of center tube is equipped with the recess, the recess internal rotation is connected with the axis of rotation, joint spare is the pawl, the one end fixed connection of joint spare in the axis of rotation, the axis of rotation is equipped with the torsional spring for drive the other end of joint spare to the tooth's socket direction of interior ratchet rotates.
Optionally, the clamping piece is an elastic metal sheet, one end of the clamping piece is fixedly connected to the pipe wall of the central pipe, and the other end of the clamping piece is bent towards the tooth socket direction of the inner ratchet wheel.
Borrow by above-mentioned technical scheme, the utility model discloses at least, have following advantage:
when the maintainer prepares the circuit to overhaul, twine the earth connection on the reel earlier, the rethread fixed band is fixed in self waist with the tight pulley, then connects the other end of earth connection in the department of discharging on ground. After the preparation work is done, in the process that maintainers climb the transmission tower, the position of the fixed wheel rises gradually, the grounding wire breaks away from the reel gradually, the reel and the central pipe are driven to rotate integrally, the pipe female clamp also rotates along with the central pipe, the pipe female clamp and the grounding wire in the central pipe are relatively static, the damage caused by the twisting of the grounding wire in the central pipe is avoided, the use performance of the grounding wire is ensured, and the conductive performance of the grounding wire is ensured after the maintainers working high above the ground are used for clamping the pipe female clamp in the high-altitude discharge position. In conclusion, the pipe nut clamp is carried with a user, the winding wheel automatically releases the grounding wire, and a maintainer can conveniently and timely ground a high-altitude part to be overhauled; meanwhile, the maintainers do not need to compromise the release of the grounding wires and only need to climb with concentration, so that the working efficiency of high-voltage line maintenance is improved.
Drawings
Fig. 1 is a schematic structural diagram of a high-voltage transmission tower grounding device provided by an embodiment of the present invention;
FIG. 2 is a view taken from the direction B-B of FIG. 1;
fig. 3 is an enlarged view of a portion a in fig. 1.
Reference numerals in the drawings of the specification include: the pipe box clamp comprises a pipe box clamp 1, a central pipe 2, a reel 3, a grounding wire 4, a fixed wheel 5, a fixed belt 6, a bearing 7, an axial protrusion 8, a socket rod 9, a cover body 10, a first magnet 11, a second magnet 12, a clamping piece 13, an inner ratchet wheel 14, a toothed part 15 and a non-toothed part 16.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, an embodiment of the utility model provides a high-voltage transmission tower earthing device, it includes: a grounding part and a wire releasing part;
the grounding part comprises a pipe bus clamp 1, a central pipe 2, a reel 3 and a grounding wire 4, the central pipe 2 penetrates through the center of the reel 3, the pipe bus clamp 1 is arranged at one end of the central pipe 2, one end of the grounding wire 4 is connected to the pipe bus clamp 1, the other end of the grounding wire penetrates through the pipe wall of the central pipe 2, and the other end of the grounding wire 4 is wound on the reel 3;
the unwrapping wire portion includes tight pulley 5 and fixed band 6, and the both ends of fixed band 6 are connected respectively in tight pulley 5 for be fixed in the waist with tight pulley 5, the center of tight pulley 5 is equipped with the bearing hole, and the other end of center tube 2 rotates to be connected in the bearing hole.
The working process of the high-voltage transmission tower grounding device is as follows:
when the maintainer prepares the circuit to overhaul, twine earth connection 4 on reel 3 earlier, rethread fixed band 6 is fixed in self waist with tight pulley 5, then connects the other end of earth connection 4 in the department of discharging on ground. After the preparation work is done, at the in-process that maintainer scrambled transmission tower, the position of tight pulley 5 risees gradually, earth connection 4 breaks away from reel 3 gradually, and drive reel 3 and 2 integrative rotations of center tube, female clamp 1 of pipe also rotates along with center tube 2, female clamp 1 of pipe and the interior earth connection 4 of center tube 2 are static relatively, avoid earth connection 4 to twist the strength damage, guarantee the performance of earth connection 4, reach and wait to overhaul the position after, the maintainer of high altitude construction will manage female clamp 1 centre gripping in corresponding discharge element.
In the technical scheme of the utility model, the tubular bus clamp 1 is carried with the user, which is convenient for the maintainer to ground the corresponding discharge part in time; meanwhile, the rotating reel 3 automatically releases the grounding wire 4, and the maintainers do not need to compromise the release of the grounding wire 4 and only need to climb with concentration, thereby avoiding distraction of the maintainers and improving the working efficiency of high-voltage line maintenance.
Specifically, fixed band 6 is equipped with the buckle, and the back is accomplished in the maintenance of the personnel's of being convenient for operation, dismantles the fixed disk from the waist.
Specifically, reel 3 is the timber material, and the inside wall coating of center tube 2 has insulating coating, avoids leading electrically between center tube 2 and the earth connection 4.
Specifically, the other end of the ground wire 4 is fixedly connected to the ground clip. When in normal use, the grounding clamp is clamped at the discharge position of the ground.
As shown in fig. 1 and 2, in a specific embodiment, the central tube 2 is installed in the bearing hole through a bearing 7, an axial protrusion 8 is arranged on the outer side of the tube wall of the central tube 2, an axial groove is arranged on the inner ring of the bearing 7, and the axial protrusion 8 is embedded in the axial groove.
In the present embodiment, specifically, the bearing 7 is a ball bearing 7. The axial protrusions 8 and the axial grooves are matched with each other, so that the central tube 2 and the bearing 7 are connected stably, and the integrity of the central tube 2 and the bearing 7 is improved.
In the specific embodiment shown in fig. 1 and 3, the paying-off part further comprises a socket rod 9, the other end of the central tube 2 penetrates through the bearing hole, the other end side of the central tube 2 is provided with a radial hole, and the socket rod 9 is inserted into the radial hole.
In this embodiment, specifically, one end of the socket rod 9 is located outside the radial hole, the other end is inserted into the radial hole, and one end side of the socket rod 9 abuts against the fixed wheel 5, so that the fixed wheel 5 and the bearing 7 are prevented from being separated from the central tube 2.
Specifically, one side swing joint that tight pulley 5 faces the waist has the cover body 10, and the cover body 10 covers in the other end of center tube 2, has the clearance between the medial surface of the cover body 10 and the other end of center tube 2, avoids the other end of center tube 2 to support to the waist, guarantees that 2 free rotations of center tube are not hindered.
Specifically, one side of the edge of the cover body 10 is rotatably connected to the fixed wheel 5, and the other side of the edge is connected to the fixed wheel 5 through a buckle, when the bearing 7 needs to be replaced, the cover body 10 is separated from the fixed wheel 5, so that the socket rod 9 is pulled out of the radial hole, and the fixed wheel 5, the bearing 7 and the central pipe 2 are separated from each other.
As shown in fig. 1 and 3, in the embodiment, one end of the socket rod 9 is connected to the first magnet 11, the edge of the radial hole is provided with an annular groove, the second magnet 12 is embedded in the annular groove, and the other end of the socket rod 9 is inserted into the radial hole to attract the first magnet 11 and the second magnet 12 to each other.
In this embodiment, specifically, when the first magnet 11 and the second magnet 12 are close to each other, the end faces of the two magnets close to each other are opposite in magnetism, and attract each other, so that the insertion rod 9 is stably inserted into the radial hole, and when the central tube 2 rotates, the insertion rod 9 is prevented from being separated from the radial hole due to centrifugal force, so that the central tube 2 and the fixed wheel 5 are further prevented from being separated from each other.
As shown in fig. 1 and 2, in the embodiment, the pipe wall of the center pipe 2 between the fixed wheel 5 and the reel 3 is connected to one end of the snap 13, one side of the fixed wheel 5 facing the reel 3 is provided with an inner ratchet 14, and the other end of the snap 13 abuts against the inner ratchet 14 for unidirectional rotation of the center pipe 2.
In the present embodiment, specifically, the other end of the engaging member 13 abuts against the tooth socket of the inner ratchet 14, and the central tube 2 rotates in one direction through the engagement between the ratchet and the engaging member 13, so as to drive the winding wheel 3 to rotate only in the direction of releasing the grounding wire 4, thereby preventing the winding wheel 3 from rotating in the opposite direction and ensuring that the grounding wire 4 is smoothly separated from the winding wheel 3.
Specifically, an arrow indicating the winding direction of the grounding wire is drawn on the side surface of the reel 3, so that when the maintainer is reminded to wind the grounding wire on the reel 3, the winding direction of the grounding wire is consistent with the rotating direction of the clamping piece 13 relative to the inner ratchet wheel 14.
In the embodiment, as shown in fig. 2, the inner edge of the inner ratchet wheel 14 is provided with a toothed portion 15 and a non-toothed portion 16, the toothed portion 15 and the non-toothed portion 16 are circumferentially spaced apart from each other in the inner ratchet wheel 14, and the other end of the engaging member 13 abuts against the tooth grooves of the toothed portion 15.
In the present embodiment, the non-toothed portion 16 has a circular arc shape. When the other end of the clamping piece 13 is separated from the tooth-shaped part 15 along with the rotation of the central tube 2, the other end of the clamping piece 13 slides in the arc range of the non-tooth-shaped part 16. Because of the ratchet arrangement, the central tube 2 can only rotate in one direction. When the overhaul is finished, in order to conveniently rewind the grounding wire 4 to the reel 3, the inserting rod 9 and the radial hole can be sequentially separated, the axial protrusion 8 and the axial groove are separated, and finally the fixed disc and the central tube 2 are separated, so that the clamping piece 13 and the inner ratchet wheel 14 are separated, the two ends of the central tube 2 are held by hands, the central tube 2 is rotated, the reel 3 reversely rotates, and the grounding wire 4 is rewound on the reel 3. When the fixing disc is subsequently installed on the central tube 2 again, the other end of the clamping member 13 can be firstly in the arc range corresponding to the non-tooth-shaped part 16, so that the other end of the clamping member 13 is coplanar with the tooth-shaped part 15 again, and the situation that the other end of the clamping member 13 cannot be jacked in the tooth groove of the inner ratchet wheel 14 again is avoided.
In a specific embodiment, a groove is formed in the wall of the central tube 2, a rotating shaft is rotatably connected in the groove, the clamping piece 13 is a pawl, one end of the clamping piece 13 is fixedly connected to the rotating shaft, and a torsion spring is arranged on the rotating shaft and used for driving the other end of the clamping piece 13 to rotate towards the tooth space of the inner ratchet wheel 14.
In the present embodiment, specifically, the center pipe 2 between the reel 3 and the waist portion is a solid shaft, the groove is located on the axial side of the solid shaft, and the pawl is made of 304 stainless steel, and has a certain rigidity. Along with the rotation of the central tube 2, when the other end of the clamping piece 13 is abutted to the tooth tip of the inner ratchet wheel 14, the clamping piece 13 overcomes the torsion of the torsion spring, and the other end of the clamping piece 13 rotates towards the direction close to the groove; when the other end of the clamping piece 13 is separated from the tooth tip of the inner ratchet wheel 14, the torsion spring releases elastic potential energy to force the other end of the clamping piece 13 to rotate towards the direction far away from the groove. If the central tube 2 rotates reversely, the other end of the clamping piece 13 is abutted against the bottom of the tooth socket of the inner ratchet wheel 14, so that the central tube 2 is prevented from rotating reversely.
In a specific embodiment, the fastening member 13 is an elastic metal sheet, one end of the fastening member 13 is fixedly connected to the pipe wall of the central pipe 2, and the other end is bent toward the tooth space of the inner ratchet 14.
In the present embodiment, specifically, one end of the clamping member 13 is fixedly welded to the pipe wall of the central pipe 2, and the other end is bent toward the tooth space of the inner ratchet 14. Compared with the pawl in the previous embodiment, the elastic metal sheet in the present embodiment has a certain flexibility, so that the other end of the clamping member 13 can reciprocate between the tooth tip and the tooth socket of the inner ratchet 14, thereby rotating the central tube 2 in one direction relative to the fixed wheel 5 and preventing the central tube 2 from rotating in the opposite direction.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A high-voltage transmission tower grounding device is characterized by comprising:
the grounding part comprises a pipe bus clamp, a central pipe, a reel and a grounding wire, the central pipe penetrates through the center of the reel, the pipe bus clamp is arranged at one end of the central pipe, one end of the grounding wire is connected to the pipe bus clamp, the other end of the grounding wire penetrates through the pipe wall of the central pipe, and the other end of the grounding wire is wound on the reel;
the paying-off part comprises a fixed wheel and a fixed belt, the two ends of the fixed belt are respectively connected with the fixed wheel and used for fixing the fixed wheel on the waist, a bearing hole is formed in the center of the fixed wheel, and the other end of the central pipe is rotatably connected with the bearing hole.
2. The grounding device for the high-voltage transmission tower as claimed in claim 1, wherein the central tube is mounted in the bearing hole through a bearing, an axial protrusion is arranged on the outer side of the tube wall of the central tube, an axial groove is formed in the inner ring of the bearing, and the axial protrusion is embedded in the axial groove.
3. The high-voltage transmission tower grounding device according to claim 2, wherein the paying-off part further comprises a socket rod, the other end of the central tube penetrates through the bearing hole, a radial hole is formed in the other end side of the central tube, and the socket rod is inserted into the radial hole.
4. The high-voltage transmission tower grounding device according to claim 3, wherein one end of the insertion rod is connected to the first magnet, an annular groove is formed in the edge of the radial hole, a second magnet is embedded in the annular groove, and the other end of the insertion rod is inserted into the radial hole and used for enabling the first magnet and the second magnet to attract each other.
5. The grounding device for the high-voltage transmission tower as claimed in claim 3 or 4, wherein the pipe wall of the central pipe between the fixed wheel and the reel is connected to one end of a clamping piece, an inner ratchet wheel is arranged on one side surface, facing the reel, of the fixed wheel, and the other end of the clamping piece is abutted to the inner ratchet wheel for enabling the central pipe to rotate in a single direction.
6. The grounding device for the high-voltage transmission tower as claimed in claim 5, wherein a toothed portion and a non-toothed portion are arranged on the inner edge of the inner ratchet wheel, the toothed portion and the non-toothed portion are circumferentially distributed around the inner ratchet wheel at intervals, and the other end of the clamping member is abutted to a tooth groove of the toothed portion.
7. The grounding device for the high-voltage transmission tower as claimed in claim 5, wherein a groove is formed in the wall of the central tube, a rotating shaft is rotatably connected in the groove, the clamping member is a pawl, one end of the clamping member is fixedly connected to the rotating shaft, and the rotating shaft is provided with a torsion spring for driving the other end of the clamping member to rotate towards the tooth space direction of the inner ratchet wheel.
8. The grounding device for the high-voltage transmission tower as claimed in claim 5, wherein the clamping member is an elastic metal sheet, one end of the clamping member is fixedly connected to the pipe wall of the central pipe, and the other end of the clamping member is bent towards the tooth space direction of the inner ratchet wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393044.6U CN211265729U (en) | 2020-03-25 | 2020-03-25 | High-voltage transmission tower grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393044.6U CN211265729U (en) | 2020-03-25 | 2020-03-25 | High-voltage transmission tower grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211265729U true CN211265729U (en) | 2020-08-14 |
Family
ID=71987205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020393044.6U Expired - Fee Related CN211265729U (en) | 2020-03-25 | 2020-03-25 | High-voltage transmission tower grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211265729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243317A (en) * | 2021-12-20 | 2022-03-25 | 国网河南省电力公司洛阳供电公司 | Tower grounding device and operation method |
-
2020
- 2020-03-25 CN CN202020393044.6U patent/CN211265729U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243317A (en) * | 2021-12-20 | 2022-03-25 | 国网河南省电力公司洛阳供电公司 | Tower grounding device and operation method |
| CN114243317B (en) * | 2021-12-20 | 2023-07-18 | 国网河南省电力公司洛阳供电公司 | Tower grounding device and operation method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200814 |