CN114334561B - Grounding wire sets for low voltage circuit breakers - Google Patents
Grounding wire sets for low voltage circuit breakers Download PDFInfo
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- CN114334561B CN114334561B CN202111576882.2A CN202111576882A CN114334561B CN 114334561 B CN114334561 B CN 114334561B CN 202111576882 A CN202111576882 A CN 202111576882A CN 114334561 B CN114334561 B CN 114334561B
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Abstract
本发明属于用电设备技术领域，公开了一种用于低压断路器的成套接地线。该用于低压断路器的成套接地线包括连接件、接地线、螺母和操作组件，连接件包括相互连接的卡接部和锁紧部，卡接部能与低压断路器的接线端固定连接；接地线的线耳套设于锁紧部；螺母套设于锁紧部且与锁紧部螺接，螺母能将线耳锁紧；操作组件套设于螺母并与螺母卡合连接，操作组件能对螺母进行旋紧操作。本发明提供的用于低压断路器的成套接地线，通过卡接部与低压断路器的接线端固定连接，接地线的线耳套设于锁紧部，螺母套设于锁紧部且与锁紧部螺接，旋拧操作组件对螺母进行旋紧，使螺母对接地线的线耳进行锁紧，结构简单，且操作方便。
The present invention belongs to the technical field of electrical equipment, and discloses a complete set of grounding wires for low-voltage circuit breakers. The complete set of grounding wires for low-voltage circuit breakers includes a connector, a grounding wire, a nut and an operating assembly. The connector includes a clamping portion and a locking portion that are connected to each other. The clamping portion can be fixedly connected to the wiring terminal of the low-voltage circuit breaker; the wire ear of the grounding wire is sleeved on the locking portion; the nut is sleeved on the locking portion and is screwed with the locking portion, and the nut can lock the wire ear; the operating assembly is sleeved on the nut and is clamped and connected to the nut, and the operating assembly can tighten the nut. The complete set of grounding wires for low-voltage circuit breakers provided by the present invention is fixedly connected to the wiring terminal of the low-voltage circuit breaker through the clamping portion, the wire ear of the grounding wire is sleeved on the locking portion, the nut is sleeved on the locking portion and is screwed with the locking portion, and the screwing operating assembly is used to tighten the nut, so that the nut locks the wire ear of the grounding wire. The structure is simple and easy to operate.
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
The power system has undergone long-term development, and the ground wire used in the overhaul of the power grid equipment is also continuously updated. The grounding wires are various in types, and most of the grounding wires widely used at present are formed by combining contacts, insulating rods and annealed copper wires, and the grounding wires of the corresponding contacts are selected according to the types of equipment during use. The flat-mouth type grounding wire is selected when the load side of the transformer substation busbar and the high-voltage switch cabinet is grounded, the grounding wire of a special connector is used when the high-voltage tapping box without the load switch is grounded, or a group of terminal heads are disassembled, and then the wire clamp type grounding wire is used.
When the low-voltage circuit breaker, especially the low-voltage circuit breaker in the batch meter is grounded, because the grounding wire head is large in size, the low-voltage circuit breaker is difficult to ground, workers often hang the low-voltage circuit breaker through pulling out the insulating layer of the circuit and other modes, so that the insulating layer is damaged, the insulating effect is reduced, the specifications and the types of domestic insulated wires are different, the thickness of the insulating layer are different, the peeling is difficult, the grounding wire device is inconvenient to detach and mount, the labor and time are wasted when workers operate, difficulty is brought to power failure maintenance work, and the workload of operation and maintenance staff is increased.
Disclosure of Invention
The invention aims to provide a complete set of grounding wire for a low-voltage circuit breaker, which solves the problems that a grounding wire connecting device in the prior art is inconvenient to disassemble and assemble and is time-consuming and labor-consuming to operate.
To achieve the purpose, the invention adopts the following technical scheme:
a set of ground wires for a low voltage circuit breaker, comprising:
The connecting piece comprises a clamping part and a locking part which are connected with each other, and the clamping part can be fixedly connected with a wiring terminal of the low-voltage circuit breaker;
the wire ear sleeve of the grounding wire is arranged on the locking part;
The nut is sleeved on the locking part and is in threaded connection with the locking part, and the nut can lock the wire lug;
the operation assembly is sleeved on the nut and is connected with the nut in a clamping mode, and the operation assembly can conduct screwing operation on the nut.
Optionally, the operation component includes:
one end of the screwing piece is provided with an accommodating groove;
The sleeving piece is arranged in the accommodating groove and is connected with the nut in a clamping mode.
Optionally, the socket piece is fixedly connected with the screwing piece;
Or, the sleeve joint piece and the screwing piece are integrally formed.
Optionally, the sleeve joint piece is cylindrical structure, the ladder groove has been seted up along the axial in the sleeve joint piece, the ladder groove includes:
The clamping groove is used for accommodating and clamping and connecting with the periphery of the nut;
The avoidance groove is used for accommodating the locking part.
Optionally, the cross sections of the clamping groove and the nut are regular hexagons.
Optionally, the connecting piece further includes 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 regular hexagon.
Optionally, the connecting piece further includes a transition portion, the transition portion is disposed between the locking portion and the screwing portion, and the transition portion and the locking portion are coaxially disposed.
Optionally, the thread of the locking part is a circular thread.
Optionally, a groove is formed at an end of the clamping portion, an internal thread is formed on a side wall of the groove, and the internal thread is matched with an external thread of a terminal of the low-voltage circuit breaker.
The invention has the beneficial effects that the complete set of grounding wire for the low-voltage circuit breaker is provided with the connecting piece, the connecting piece comprises the clamping part and the locking part which are connected with each other, when the grounding wire connecting device is used, the wire lug of the grounding wire is sleeved on the locking part through the clamping part and fixedly connected with the wiring end of the low-voltage circuit breaker, the nut is sleeved on the locking part and positioned at the outer side of the wire lug of the grounding wire, and the operating component is sleeved on the nut and is connected with the nut in a clamping way through the operating component, and the nut is screwed by the screwing operating component, so that the grounding wire lug of the nut is locked.
Drawings
Fig. 1 is a schematic view of a structure of a set of ground wires for a low voltage circuit breaker provided by the present invention;
FIG. 2 is a schematic view of the construction of the operating assembly provided by the present invention;
Fig. 3 is an assembly view of a set of ground wires for a low voltage circuit breaker provided by the present invention.
In the figure:
1. The connecting piece, 11, the clamping part, 12, the locking part, 13, the screwing part, 14, the transition part, 2, the grounding wire, 3, the nut, 4, the operating component, 41, the screwing piece, 411, the accommodating groove, 412, the first through hole, 42, the sleeve piece, 421, the step groove, 4211, the clamping groove, 4212, the avoiding groove, 422 and the second through hole.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Example 1
The embodiment provides a complete set of grounding wires for a low-voltage circuit breaker, which comprises a connecting piece 1, a grounding wire 2, a nut 3 and an operation assembly 4, wherein the connecting piece 1 comprises a clamping part 11 and a locking part 12 which are mutually connected, the clamping part 11 can be fixedly connected with a wiring end of the low-voltage circuit breaker, a 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, the nut 3 can lock the wire lug, the operation assembly 4 is sleeved on the nut 3 and is in clamping connection with the nut 3, and the operation assembly 4 can carry out screwing operation on the nut 3.
According to the complete set of grounding wires for the low-voltage circuit breaker, the connecting piece 1 is arranged, the connecting piece 1 comprises the clamping part 11 and the locking part 12 which are connected with each other, when the grounding wire connecting device is used, the wire lugs of the grounding wires 2 are sleeved on the locking part 12 through the clamping part 11 and fixedly connected with the wiring ends of the low-voltage circuit breaker, the nuts 3 are sleeved on the locking part 12 and are positioned on the outer sides of the wire lugs of the grounding wires 2, the operating assembly 4 is sleeved on the nuts 3 and is in clamping connection with the nuts 3 through the operating assembly 4, the nuts 3 are screwed by the screwing operating assembly 4, so that the nuts 3 are locked on the wire lugs of the grounding wires 2, the structure is simple, the operation is convenient, the time is saved, and the working efficiency of operators is further improved. The low-voltage circuit breaker generally refers to a circuit breaker with a capacity ranging from 4A to 5000A.
Optionally, the end of the clamping portion 11 is provided with a groove, and the side wall of the groove is provided with an internal thread, and the internal thread is matched with an external thread of a terminal of the low-voltage circuit breaker. Through setting up joint portion 11 and low voltage circuit breaker's wiring end threaded connection, convenient operation, and do benefit to the dismantlement.
The clamping part 11 is preferably of a cylindrical structure, the length of the clamping part 11 is 6cm-10cm, the diameter of the clamping part 11 is 10mm-14mm, and the depth of a groove of the clamping part 11 is 10mm-14 mm. In this embodiment, the length of the clamping portion 11 is 8cm, the diameter of the clamping portion 11 is 12mm, and the depth of the groove of the clamping portion 11 is 12mm. In other embodiments, the specific dimensions of the clamping portion 11 can be set by those skilled in the art according to actual needs.
The threads of the locking portion 12 are preferably circular threads. The rounded thread prevents accumulation of dirt and mechanical damage and, because of the absence of a frangible edge, the thread is more resistant to wear than the other threads, further improving the mechanical reliability of the locking portion 12.
Optionally, the locking part 12 is rod-shaped, the length of the locking part 12 is 2cm-6cm, and the diameter of the locking part 12 is 8mm-12 mm. In this embodiment, the length of the locking portion 12 is 4cm, and the diameter of the locking portion 12 is 10mm. In other embodiments, one skilled in the art can set the specific dimensions of the locking portion 12 as desired.
The ground wire 2 is preferably made of soft copper, and the soft copper wire is convenient to carry and can be flexibly used on site.
The operation member 4 is made of an insulating material to ensure the insulation of the operation member 4. Optionally, the material of the operation component 4 is glass fiber reinforced plastic epoxy resin, so that the cost is low and the manufacturing is easy. In other embodiments, a suitable insulating material may be selected by those skilled in the art according to actual needs.
As shown in fig. 2, the operation assembly 4 comprises a screwing piece 41 and a sleeving piece 42, wherein an accommodating groove 411 is formed in one end of the screwing piece 41, the sleeving piece 42 is arranged in the accommodating groove 411, and the sleeving piece 42 is in clamping connection with the nut 3. Through setting up holding tank 411 in the one end of screwing up piece 41, in holding tank 411 was located to socket piece 42, socket piece 42 and nut 3 block were connected, had improved socket piece 42's installation stability, made socket piece 42 to the abundant chucking of nut 3.
Alternatively, the socket 42 is fixedly connected with the screw 41. This arrangement prevents relative movement between the screw 41 and the socket 42 when the screw 41 is screwed, resulting in the nut 3 not being able to lock the lug. Or the socket 42 is integrally formed with the screw 41. The arrangement simplifies the process and improves the manufacturing efficiency.
Optionally, the socket member 42 has a cylindrical structure, a stepped groove 421 is axially formed in the socket member 42, the stepped groove 421 includes a clamping groove 4211 and an avoidance groove 4212, the clamping groove 4211 is used for accommodating and being in clamping connection with the outer periphery of the nut 3, and the avoidance groove 4212 is used for accommodating the locking portion 12. Through the arrangement of the clamping groove 4211, the clamping groove 4211 can be used for accommodating and being in clamping connection with the periphery of the nut 3, so that the accuracy and reliability of the clamping of the sleeve piece 42 to the nut 3 are improved, the nut 3 is prevented from moving relatively, the operation efficiency of the operation assembly 4 is further improved, and through the arrangement of the avoiding groove 4212, the avoiding groove 4212 can be used for accommodating the locking part 12, the locking part 12 is prevented from shaking in the process of rotating the nut 3, and the operation efficiency of the operation assembly 4 is affected.
The cross sections of the clamping groove 4211 and the nut 3 are each preferably regular hexagons. With this arrangement, the cross section of the clamping groove 4211 is identical to the cross section of the nut 3, thereby improving the locking efficiency.
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 the low-voltage circuit breaker provided in the present embodiment is the same as that of the first embodiment, and only part of the structures are different. This embodiment will be described only in terms of a structure different from that of the 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 connector 1, the connector 1 further includes a screwing portion 13, the screwing portion 13 is connected to the locking portion 12, and the screwing portion 13 is coaxially disposed with the locking portion 12. Through setting up the portion of screwing 13, 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. This arrangement facilitates the operator's handling of the engaging portion 13. Alternatively, the length of the screwing part 13 is 8cm-12cm, and the screwing part is convenient to take. In this embodiment, the length of the screwing part 13 is 10cm. The specific dimensions of the screwing part 13 can be set according to actual needs by a person skilled in the art.
The connecting piece 1 further comprises a transition part 14, wherein the transition part 14 is arranged between the locking part 12 and the screwing part 13, and the transition part 14 is coaxially arranged with the locking part 12. This arrangement prevents the lugs of the ground wire 2 from following the rotation of the nut 3 when the operating assembly 4 is sleeved on the nut 3. Specifically, the transition portion 14 is rod-shaped, the length of the transition portion 14 is 2cm-4cm, and the diameter of the transition portion 14 is 6mm-10mm. 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 8mm. In other embodiments, the size of the transition 14 may be set by those skilled in the art as desired.
As shown in fig. 2 and 3, the receiving slot 411 of the screw 41 has a first through hole 412 at the bottom thereof, and the receiving slot 4212 of the socket 42 has a second through hole 422 at the bottom thereof, the first through hole 412 and the second through hole 422 being in communication. When the operation component 4 is sleeved on the nut 3, the operation 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 operation 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 regular hexagon, so that the screwing part 13 can enter the first through hole 412, and at the same time, the screwing part 13 can be conveniently clamped. When the connecting piece 1 is connected with the wiring terminal of the low-voltage circuit breaker, the operating component 4 can be connected to the screwing part 13 in a sleeved mode, the sleeving piece 42 is connected with the screwing part 13 in a clamped mode, and the operating component 4 can be screwed to drive the connecting piece 1 to rotate, so that the connecting piece 1 is connected with the wiring terminal of the low-voltage circuit breaker.
The operation process for carrying out grounding treatment on the grounding end of the whole set of grounding wire for the low-voltage circuit breaker comprises the steps of firstly sleeving an operation component 4 on a screwing part 13, enabling a sleeve joint piece 42 to be in clamping connection with the screwing part 13, screwing the operation component 4, namely driving a connecting piece 1 to rotate, achieving connection of the connecting piece 1 and a wiring end of the low-voltage circuit breaker, continuously pushing the operation component 4 towards a clamping part 11, enabling the screwing part 13 to penetrate through a second through hole 422 and enter a first through hole 412, enabling a clamping groove 4211 of the sleeve joint piece 42 to be clamped with a nut 3, enabling a transition part 14 to be pushed into the first through hole 412 and the second through hole 422, enabling a wire lug of the grounding wire 2 to be screwed tightly to the nut 3, enabling the wire lug to be abutted to the clamping part 11, and enabling the wire lug of the nut 3 to be locked.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. A set of ground wires for a low voltage circuit breaker, comprising:
The connecting piece (1), 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 wiring terminal of the low-voltage circuit breaker;
The grounding wire (2), the wire ear sleeve of the grounding wire (2) is arranged 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 nut (3) can lock the wire lug;
The operation assembly (4) is sleeved on the nut (3) and is in clamping connection with the nut (3), and the operation assembly (4) can carry out screwing operation on the nut (3);
the operating assembly (4) comprises:
a screwing piece (41), wherein one end of the screwing piece (41) is provided with a containing groove (411);
the sleeve joint piece (42) is arranged in the accommodating groove (411), and the sleeve joint piece (42) is in clamping connection with the nut (3);
The sleeve joint piece (42) is of a cylindrical structure, a stepped groove (421) is formed in the sleeve joint piece (42) along the axial direction, and the stepped groove (421) comprises:
a clamping groove (4211), wherein the clamping groove (4211) is used for accommodating and being in clamping connection with the periphery of the nut (3);
the avoidance groove (4212) is used for accommodating the locking part (12);
the cross sections of the clamping groove (4211) and the nut (3) are regular hexagons.
2. The set of ground wires for a low-voltage circuit breaker according to claim 1, characterized in that said socket (42) is fixedly connected with said screw (41);
or, the socket piece (42) and the screwing piece (41) are integrally formed.
3. The set of ground wires for a low voltage circuit breaker according to claim 1, characterized in that the connection piece (1) further comprises a screwing part (13), the screwing part (13) being connected with the locking part (12), and the screwing part (13) being arranged coaxially with the locking part (12).
4. A set of ground wires for a low voltage circuit breaker according to claim 3, characterized in that the screwing part (13) is rod-shaped, the cross section of the screwing part (13) being regular hexagon.
5. A set of ground wires for a low voltage circuit breaker according to claim 3, characterized in that the connection piece (1) further comprises a transition portion (14), the transition portion (14) being provided between the locking portion (12) and the screwing portion (13), the transition portion (14) being coaxially arranged with the locking portion (12).
6. The set of ground wires for a low voltage circuit breaker according to any of the claims 1-5, characterized in that the threads of the locking portion (12) are circular threads.
7. The ground line kit for a low voltage circuit breaker according to any one of claims 1 to 5, characterized in that the end of the clamping portion (11) is 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 CN114334561B (en) | 2021-12-22 | 2021-12-22 | Grounding wire sets for low voltage circuit breakers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111576882.2A CN114334561B (en) | 2021-12-22 | 2021-12-22 | Grounding wire sets for low voltage circuit breakers |
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| Publication Number | Publication Date |
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| CN114334561A CN114334561A (en) | 2022-04-12 |
| CN114334561B true CN114334561B (en) | 2025-01-17 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990006447U (en) * | 1997-07-26 | 1999-02-25 | 양재신 | Grounding structure of automobile |
| CN104538813B (en) * | 2014-12-18 | 2017-04-26 | 国家电网公司 | Operating rod of multifunctional grounding device special for meter installation and power connection |
| 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 | A ground wire hanging device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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