CN114334561A - Complete set of grounding wire for low-voltage circuit breaker - Google Patents
Complete set of grounding wire for low-voltage circuit breaker Download PDFInfo
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- CN114334561A CN114334561A CN202111576882.2A CN202111576882A CN114334561A CN 114334561 A CN114334561 A CN 114334561A CN 202111576882 A CN202111576882 A CN 202111576882A CN 114334561 A CN114334561 A CN 114334561A
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- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- 230000006978 adaptation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of electric equipment, and discloses a complete set of grounding wire for a low-voltage circuit breaker. The complete set of ground wire for the low-voltage circuit breaker comprises a connecting piece, a ground wire, a nut and an operating assembly, wherein the connecting piece comprises a clamping part and a locking part which are mutually connected, and the clamping part can be fixedly connected with a wiring end of the low-voltage circuit breaker; the wire lug of the grounding wire is sleeved on the locking part; the nut is sleeved on the locking part and is in threaded connection with the locking part, and the lug can be locked by the nut; the nut is located to the operation subassembly cover and is connected with the nut block, and the operation subassembly can be screwed the operation to the nut. The complete set of ground wire for the low-voltage circuit breaker is fixedly connected with the wiring end of the low-voltage circuit breaker through the clamping part, the wire lug of the ground wire is sleeved on the locking part, the nut is sleeved on the locking part and is in threaded connection with the locking part, and the screwing operation assembly screws the nut so that the nut locks the wire lug of the ground wire.
Description
Technical Field
The invention relates to the technical field of electric equipment, in particular to a complete set of grounding wire for a low-voltage circuit breaker.
Background
Power systems have experienced a long-term development, and grounding wires used in the maintenance of power grid equipment are also constantly being updated. The types of the grounding wires are various, most of the grounding wires widely used at present are formed by combining contact heads, insulating rods and annealed copper wires, and the grounding wires of the corresponding contact heads are selected according to the types of equipment when the grounding wires are used. A flat-opening grounding wire is selected when the transformer substation busbar and the load side of the high-voltage switch cabinet are grounded, a grounding wire with a special joint is used when a high-voltage tapping box without a load switch is grounded, or a group of terminal heads are disassembled, and then a wire clamp type grounding wire is used.
When low-voltage circuit breaker ground connection in especially the batch meter to low-voltage circuit breaker, because the ground connection end of a thread is bulky, cause low-voltage circuit breaker ground connection difficulty, the staff often hangs through modes such as dialling open circuit insulating layer and establishes, not only damage the insulating layer like this, still can reduce insulating effect, and homemade insulated wire specification model differs, insulating layer thickness differs, the difficulty of skinning, the dismouting of earth connection device is inconvenient, the workman operates to get up wastes time and energy, bring the degree of difficulty for power failure maintenance work, the work load of fortune dimension personnel has also been increaseed.
Disclosure of Invention
The invention aims to provide a complete set of grounding wire for a low-voltage circuit breaker, which aims to solve the problems that a grounding wire connecting device in the prior art is inconvenient to assemble and disassemble and time-consuming and labor-consuming to operate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a set of earth wires for a low-voltage circuit breaker, comprising:
the connecting piece comprises a clamping part and a locking part which are mutually connected, and the clamping part can be fixedly connected with a wiring end of the low-voltage circuit breaker;
the wire lug of the grounding wire is sleeved on the locking part;
the nut is sleeved on the locking part and is in threaded connection with the locking part, and the lug can be locked by the nut;
the operation assembly is sleeved on the nut and is connected with the nut in a clamping mode, and the operation assembly can perform screwing operation on the nut.
Optionally, the operating assembly comprises:
the screwing piece is provided with an accommodating groove at one end;
the sleeve joint piece is arranged in the accommodating groove and is connected with the nut in a clamping mode.
Optionally, the socket is fixedly connected with the screw;
or the socket piece and the screwing piece are integrally formed.
Optionally, the socket is of a cylindrical structure, a stepped groove is formed in the socket along the axial direction, and the stepped groove comprises:
the clamping groove is used for accommodating and is clamped and connected with the periphery of the nut;
and the avoiding groove is used for accommodating the locking part.
Optionally, the cross sections of the clamping groove and the nut are both regular hexagons.
Optionally, the connecting piece further comprises a screwing part, the screwing part is connected with the locking part, and the screwing part and the locking part are coaxially arranged.
Optionally, the screwing part is rod-shaped, and the cross section of the screwing part is a regular hexagon.
Optionally, the connecting piece further comprises a transition portion, the transition portion is arranged between the locking portion and the screwing portion, and the transition portion and the locking portion are coaxially arranged.
Optionally, the thread of the locking portion is a circular thread.
Optionally, the tip of joint portion is equipped with the recess, the lateral wall of recess is equipped with the internal thread, the internal thread with the external screw thread cooperation of low voltage circuit breaker's wiring end.
The invention has the beneficial effects that: the invention provides a set of grounding wire for a low-voltage circuit breaker, which is characterized in that a connecting piece is arranged, the connecting piece comprises a clamping part and a locking part which are mutually connected, when the grounding wire connecting device is used, the clamping part can be fixedly connected with a wiring end of the low-voltage circuit breaker, a wire lug of the grounding wire is sleeved on the locking part, and a nut is sleeved on the locking part and positioned on the outer side of the wire lug of the grounding wire; through setting up the operating assembly, the nut is located and is connected with the nut block to the operating assembly cover, revolves soon the operating assembly and screws the nut, makes the nut lock to the earth connection lug, simple structure, and convenient operation saves time, has further improved operating personnel's work efficiency.
Drawings
Fig. 1 is a schematic structural view of a set of earth wires for a low-voltage circuit breaker according to the present invention;
FIG. 2 is a schematic structural diagram of an operating assembly provided by the present invention;
fig. 3 is an assembly view of a set of earth wires for a low-voltage circuit breaker according to the invention.
In the figure:
1. a connecting member; 11. a clamping part; 12. a locking portion; 13. a screwing part; 14. a transition section; 2. a ground line; 3. a nut; 4. an operating component; 41. a screwing member; 411. accommodating grooves; 412. a first through hole; 42. a socket; 421. a stepped groove; 4211. a clamping groove; 4212. an avoidance groove; 422. a second via.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
The embodiment provides a set of grounding wires for a low-voltage circuit breaker, as shown in fig. 1-3, the set of grounding wires for the low-voltage circuit breaker comprises a connecting piece 1, a grounding wire 2, a nut 3 and an operating component 4, wherein the connecting piece 1 comprises a clamping part 11 and a locking part 12 which are connected with each other, and the clamping part 11 can be fixedly connected with a terminal of the low-voltage circuit breaker; the wire lug of the grounding wire 2 is sleeved on the locking part 12; the nut 3 is sleeved on the locking part 12 and is in threaded connection with the locking part 12, and the lug can be locked by the nut 3; the operation component 4 is sleeved on the nut 3 and is clamped and connected with the nut 3, and the operation component 4 can perform screwing operation on the nut 3.
The invention provides a set of grounding wires for a low-voltage circuit breaker, wherein a connecting piece 1 is arranged, the connecting piece 1 comprises a clamping part 11 and a locking part 12 which are mutually connected, when the grounding wire connecting device is used, the clamping part 11 is fixedly connected with a wiring end of the low-voltage circuit breaker, a lug of a grounding wire 2 is sleeved on the locking part 12, and a nut 3 is sleeved on the locking part 12 and is positioned on the outer side of the lug of the grounding wire 2; through setting up operating means 4, operating means 4 cover is located nut 3 and is connected with 3 block of nut, revolves to twist operating means 4 and screws nut 3, makes nut 3 lock the lug of earth wire 2, simple structure, and convenient operation saves time, has further improved operating personnel's work efficiency. Wherein, the low-voltage circuit breaker generally refers to a circuit breaker with the capacity range of 4A-5000A.
Optionally, the end of the clamping portion 11 is provided with a groove, the side wall of the groove is provided with an internal thread, and the internal thread is matched with an external thread of a wiring end of the low-voltage circuit breaker. Through the wiring end threaded connection who sets up joint portion 11 and low-voltage circuit breaker, convenient operation just does benefit to the dismantlement.
The clamping portion 11 is preferably of a cylindrical structure, the length of the clamping portion 11 is 6cm-10cm, the diameter of the clamping portion 11 is 10mm-14mm, and the depth of a groove of the clamping portion 11 is 10mm-14 mm. In this embodiment, the length of the engaging portion 11 is 8cm, the diameter of the engaging portion 11 is 12mm, and the depth of the groove of the engaging portion 11 is 12 mm. In other embodiments, the specific size of the clamping portion 11 can be set by those skilled in the art according to actual needs.
The thread of the locking portion 12 is preferably a round thread. The rounded thread prevents dirt build-up and mechanical damage, and because of the absence of weak edges, the thread is more wear resistant than other threads, further improving the mechanical reliability of the locking portion 12.
Alternatively, the locking part 12 is in a rod shape, the length of the locking part 12 is 2cm-6cm, and the diameter of the locking part 12 is 8mm-12mm, which is beneficial to processing and manufacturing. In this embodiment, the length of the locking portion 12 is 4cm, and the diameter of the locking portion 12 is 10 mm. In other embodiments, the specific dimensions of the locking portion 12 can be set by one skilled in the art according to actual needs.
The material of the grounding wire 2 is preferably soft copper, and the soft copper wire is convenient to carry and can be flexibly used on site.
The operating member 4 is made of an insulating material to ensure insulation of the operating member 4. Optionally, the material of the operating assembly 4 is glass fiber reinforced plastic epoxy resin, which is low in cost and easy to manufacture. In other embodiments, one skilled in the art can select a suitable insulating material according to actual needs.
As shown in fig. 2, the operating assembly 4 includes a screw 41 and a socket 42, and one end of the screw 41 is provided with a receiving groove 411; the socket 42 is disposed in the accommodating groove 411, and the socket 42 is engaged with the nut 3. Through setting up holding tank 411 at the one end of twisting piece 41, cup joint piece 42 is located in holding tank 411, and cup joint piece 42 is connected with the 3 block of nut, has improved the installation stability of cup joint piece 42, makes cup joint piece 42 fully the chucking of nut 3.
Alternatively, the socket 42 is fixedly connected to the screw 41. This arrangement prevents relative movement between the screw 41 and the socket 42 when the screw 41 is screwed, which would result in the nut 3 not being able to lock the lug. Alternatively, the socket 42 is integrally formed with the screw 41. The arrangement simplifies the process and improves the manufacturing efficiency.
Optionally, the socket 42 is of a cylindrical structure, a stepped groove 421 is formed in the socket 42 along the axial direction, the stepped groove 421 includes a clamping groove 4211 and an avoiding groove 4212, and the clamping groove 4211 is used for accommodating and being in clamping connection with the periphery of the nut 3; the avoiding groove 4212 is used for accommodating the locking portion 12. By arranging the clamping groove 4211, the clamping groove 4211 can be accommodated and clamped and connected with the periphery of the nut 3, so that the clamping accuracy and reliability of the socket piece 42 on the nut 3 are improved, the nut 3 is prevented from moving relatively, and the operation efficiency of the operation assembly 4 is further improved; through setting up and dodging groove 4212, dodging groove 4212 can the holding locking portion 12, avoids at the rotatory in-process of nut 3, and locking portion 12 appears rocking, influences the operating efficiency of operating assembly 4.
The cross-sections of the chucking groove 4211 and the nut 3 are preferably regular hexagons. By the arrangement, the cross section of the clamping groove 4211 is the same as that of the nut 3, and the locking efficiency is improved.
Example two
The present embodiment provides another set of grounding wires for a low-voltage circuit breaker, and the basic structure of the set of grounding wires for a low-voltage circuit breaker provided by the present embodiment is the same as that of the first embodiment, and only part of the structure is different. The present embodiment will be described only with respect to a structure different from the first embodiment.
In this embodiment, when the clamping portion 11 is connected to the terminal of the low-voltage circuit breaker, in order to facilitate screwing the connecting member 1, the connecting member 1 further includes a screwing portion 13, the screwing portion 13 is connected to the locking portion 12, and the screwing portion 13 and the locking portion 12 are coaxially disposed. Through setting up the portion 13 that closes soon, be convenient for guarantee that joint portion 11 and low-voltage circuit breaker's wiring end realize threaded connection, convenient operation has improved work efficiency.
Further, the screwing part 13 is rod-shaped, and the cross section of the screwing part 13 is regular hexagon. With the arrangement, the worker can conveniently take the screwing part 13. Optionally, the length of the screwing part 13 is 8cm-12cm, so that the screwing part is convenient to take. In this embodiment, the length of the screw portion 13 is 10 cm. The specific size of the screwing part 13 can be set by those skilled in the art according to actual needs.
The connecting piece 1 further comprises a transition part 14, the transition part 14 is arranged between the locking part 12 and the screwing part 13, and the transition part 14 and the locking part 12 are coaxially arranged. This kind of setting prevents that the lug of earth connection 2 from following nut 3 and rotating when nut 3 pair is located to the operating element 4 cover. Specifically, the transition part 14 is rod-shaped, the length of the transition part 14 is 2cm-4cm, and the diameter of the transition part 14 is 6mm-10 mm. The arrangement is easy to process and manufacture. Preferably, the length of the transition portion 14 is 3cm and the diameter of the transition portion 14 is 8 mm. In other embodiments, one skilled in the art can size the transition portion 14 according to actual needs.
As shown in fig. 2 and 3, the first through hole 412 is formed at the bottom of the receiving groove 411 of the screw 41, the second through hole 422 is formed at the bottom of the avoiding groove 4212 of the socket 42, and the first through hole 412 is communicated with the second through hole 422. When the operating component 4 is sleeved on the nut 3, the operating component 4 is sequentially sleeved on the screwing part 13, the transition part 14, the partial locking part 12 and the nut 3, the screwing part 13 is inserted into the first through hole 412, the transition part 14 is partially positioned in the first through hole 412, and the other part of the transition part 14 is positioned in the second through hole 422, so that the assembly of the operating component 4 before screwing is completed, and the reliability of the grounding wire connecting device is improved.
Preferably, the cross section of the second through hole 422 is a regular hexagon, so that the screwing part 13 can enter the first through hole 412, and the screwing part 13 can be clamped conveniently. When being connected connecting piece 1 and low voltage circuit breaker's wiring end, can overlap operation assembly 4 earlier and cup joint into revolve on closing portion 13, cup joint piece 42 and revolve and close 13 blocks of portion and be connected, revolve and twist operation assembly 4, can drive connecting piece 1 and rotate, realize that connecting piece 1 is connected with low voltage circuit breaker's wiring end.
The operation process of carrying out grounding treatment on the grounding end by using the set of grounding wires for the low-voltage circuit breaker comprises the following steps: firstly, the operation component 4 is sleeved on the screwing part 13, the sleeve-connection piece 42 is clamped and connected with the screwing part 13, and the operation component 4 is screwed, so that the connection piece 1 can be driven to rotate, and the connection of the connection piece 1 and a wiring end of a low-voltage circuit breaker is realized; continuing to impel operation subassembly 4 towards joint portion 11, revolve the portion of closing 13 and pass in second through-hole 422 gets into first through-hole 412, the chucking groove 4211 of cup joint piece 42 and nut 3 block, transition portion 14 impels in first through-hole 412 and second through-hole 422, revolve to twist operation subassembly 4 and screw nut 3, the lug of earth connection 2 can not rotate along with nut 3, revolve to twist operation subassembly 4 and make the lug butt in joint portion 11, nut 3 locks the lug.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A set of ground wires for a low-voltage circuit breaker, characterized in that it comprises:
the connecting piece (1) comprises a clamping portion (11) and a locking portion (12) which are connected with each other, and the clamping portion (11) can be fixedly connected with a wiring end of the low-voltage circuit breaker;
the wire lug of the grounding wire (2) is sleeved on the locking part (12);
the nut (3) is sleeved on the locking part (12) and is in threaded connection with the locking part (12), and the lug can be locked by the nut (3);
the operation component (4), the operation component (4) cover is located nut (3) and with nut (3) block is connected, operation component (4) can be right nut (3) are screwed the operation.
2. Set of ground wires for low-voltage circuit breakers according to claim 1, characterized in that said operating assembly (4) comprises:
the screw element (41), one end of the screw element (41) is provided with a containing groove (411);
the sleeve joint piece (42), the sleeve joint piece (42) is located in the accommodating groove (411), and the sleeve joint piece (42) is connected with the nut (3) in a clamping mode.
3. Set of ground wires for low-voltage circuit breakers according to claim 2, characterized in that said socket (42) is fixedly connected to said screw (41);
or the socket piece (42) and the screw piece (41) are integrally formed.
4. Set of ground wires for low-voltage circuit breakers, according to claim 2, characterized in that said socket (42) is of cylindrical configuration, said socket (42) having a stepped groove (421) axially cut therein, said stepped groove (421) comprising:
the clamping groove (4211) is used for accommodating and clamping and connecting with the periphery of the nut (3);
an avoidance groove (4212), the avoidance groove (4211) being for accommodating the locking portion (12).
5. Set of ground wires for low-voltage circuit breakers according to claim 4, characterized in that said jamming slot (4211) and said nut (3) are both regular hexagonal in cross section.
6. Set of ground wires for low-voltage circuit breakers according to claim 1, characterized in that said connection element (1) further comprises a screwing portion (13), said screwing portion (13) being connected to said locking portion (12), and said screwing portion (13) being arranged coaxially to said locking portion (12).
7. Set of ground wires for low-voltage circuit breakers according to claim 6, characterized in that said screwing portion (13) is rod-shaped, said screwing portion (13) having a cross section in the shape of a regular hexagon.
8. Set of ground wires for low-voltage circuit breakers according to claim 6, characterized in that said connection element (1) further comprises a transition portion (14), said transition portion (14) being arranged between said locking portion (12) and said screwing portion (13), said transition portion (14) being arranged coaxially to said locking portion (12).
9. Set of ground wires for low-voltage circuit breakers according to any of the claims 1 to 8, characterized in that the thread of said locking portion (12) is a circular thread.
10. Set of earthing wires for low-voltage circuit-breaker according to any of claims 1-8, characterized in that the ends of the snap-in parts (11) are provided with a groove, the side wall of which is provided with an internal thread, which cooperates with an external thread of the terminal of the low-voltage circuit-breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111576882.2A CN114334561A (en) | 2021-12-22 | 2021-12-22 | Complete set of grounding wire for low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111576882.2A CN114334561A (en) | 2021-12-22 | 2021-12-22 | Complete set of grounding wire for low-voltage circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN114334561A true CN114334561A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111576882.2A Pending CN114334561A (en) | 2021-12-22 | 2021-12-22 | Complete set of grounding wire for low-voltage circuit breaker |
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| CN (1) | CN114334561A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990006447U (en) * | 1997-07-26 | 1999-02-25 | 양재신 | Grounding structure of automobile |
| CN104538813A (en) * | 2014-12-18 | 2015-04-22 | 国家电网公司 | Operating rod of multifunctional grounding device special for meter installation and power connection |
| CN109244688A (en) * | 2018-09-29 | 2019-01-18 | 广东电网有限责任公司 | A kind of 0.4kV ground line clamp device |
| CN214099958U (en) * | 2020-12-31 | 2021-08-31 | 国网浙江省电力有限公司舟山供电公司 | Grounding wire hanging device |
-
2021
- 2021-12-22 CN CN202111576882.2A patent/CN114334561A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990006447U (en) * | 1997-07-26 | 1999-02-25 | 양재신 | Grounding structure of automobile |
| CN104538813A (en) * | 2014-12-18 | 2015-04-22 | 国家电网公司 | Operating rod of multifunctional grounding device special for meter installation and power connection |
| CN109244688A (en) * | 2018-09-29 | 2019-01-18 | 广东电网有限责任公司 | A kind of 0.4kV ground line clamp device |
| CN214099958U (en) * | 2020-12-31 | 2021-08-31 | 国网浙江省电力有限公司舟山供电公司 | Grounding wire hanging device |
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