Device and method for quickly disconnecting grounding down lead of distribution network line

Abstract

The invention discloses a quick disconnecting device and method for a grounding downlead of a distribution network line, and belongs to the technical field of grounding downlead connection, the quick disconnecting device for the grounding downlead of the distribution network line comprises a shell; the grounding down lead is arranged on the shell, the grounding down lead is disconnected and forms a first contact part and a second contact part respectively, the first contact part is used for grounding, and the second contact part is used for connecting a three-phase PT; and the connecting piece is rotatably mounted on the shell, and the connecting piece is rotated to switch the connection state or the disconnection state between the connecting piece and the first contact part and the connection state or the disconnection state between the connecting piece and the second contact part. The grounding down lead is cut off and split into the first contact part and the second contact part, then the first contact part and the second contact part are connected through the connecting piece, the grounding down lead is rapidly disconnected by rotating the connecting piece, and therefore the direct current test transmission instrument can be used for test transmission.

Description

Technical Field

[0001] The invention relates to the technical field of grounding down conductor connection, in particular to a grounding down conductor quick disconnect device and method for a distribution network line. Background Art

[0002] With the rapid development of science and technology and society, the line architecture has gradually increased and the system has become increasingly complex. It is very necessary to quickly resolve distribution network line faults. In order to achieve the goal of quickly resolving faults, power companies have introduced advanced fault location technologies and equipment, among which the most commonly used equipment is the DC test transmitter.

[0003] The DC tester can quickly locate the fault point by sending test current to the line, perform maintenance more targetedly, reduce the scope of power outages, reduce the impact on users, and reduce troubleshooting time.

[0004] However, in the actual process of using the DC tester to troubleshoot faults, the following problems are often encountered:

[0005] ① Most of the three-phase PTs of current overhead line switches are equipped with grounding down conductors. When the grounding down conductor cannot be disconnected, the DC test transmitter cannot be used for test transmission. This greatly limits the use of the DC test transmitter and causes a delay in fault finding time.

[0006] ② In the cable line, since the main incoming interval, main outgoing interval, and interval are all equipped with grounding devices, the cable line cannot be tested using a DC test transmitter. Therefore, when encountering a cable line fault, the only way to troubleshoot is to manually check the line, which greatly prolongs the troubleshooting time. The troubleshooting time for cable lines is generally over 6 hours, and the troubleshooting efficiency is low. In summary, the inability to use a DC test transmitter for testing due to the grounding lead has become the main problem in current fault finding. Chen Kailing Innovation Studio plans to design a quick disconnect device for the grounding lead of the distribution network line, which can quickly and effectively disconnect the grounding lead when it needs to be disconnected, and can meet the grounding requirements when the grounding lead needs to be connected. Summary of the invention

[0007] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0008] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0009] Therefore, the first object of the present invention is to provide a distribution network line grounding down conductor quick disconnect device, which can quickly disconnect the grounding down conductor, so that a DC test transmitter can be used for test transmission.

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions: a distribution network line grounding down conductor quick disconnect device, comprising a shell; a grounding down conductor arranged on the shell, the grounding down conductor is disconnected and respectively forms a first contact part and a second contact part, the first contact part is used for grounding, and the second contact part is used for connecting a three-phase PT; and a connecting piece rotatably installed on the shell, by rotating the connecting piece, the conductive state or the disconnected state between the connecting piece and the first contact part and the second contact part is switched.

[0011] As a preferred solution of the quick disconnect device for grounding down conductor of distribution network line of the present invention, the connecting member is in direct or indirect contact with the first contact part and the second contact part.

[0012] As a preferred solution of the distribution network line grounding down conductor quick disconnect device of the present invention, it also includes a conductive sheet, which is arranged on the shell, and there are two conductive sheets, one of which is used to conduct the first contact part and the connecting piece, and the other conductive sheet is used to conduct the second contact part and the connecting piece.

[0013] As a preferred solution of the quick disconnect device for the grounding down conductor of the distribution network line of the present invention, wherein: the first contact part and the second contact part are both provided with a clamping hole, and the conductive sheet is provided with a connecting buckle, and when the clamping hole is clamped with the connecting buckle, the conductive sheet is connected with the connecting piece.

[0014] As a preferred solution of the quick disconnect device for the grounding down conductor of the distribution network line of the present invention, the connecting piece includes a connecting plate and a mounting block, the connecting plate is snap-connected with the mounting block, and the connecting plate rotates synchronously with the mounting block.

[0015] As a preferred solution of the quick disconnect device for the grounding down conductor of the distribution network line of the present invention, the connecting piece further comprises a mounting column, the mounting column is arranged on the shell, the connecting plate is provided with a mounting hole, and the mounting column is inserted into the mounting hole.

[0016] As a preferred solution of the quick disconnect device for the grounding lead of the distribution network line of the present invention, wherein: a limit plate is provided on the mounting column, and a tension spring is sleeved on the mounting column, and the two ends of the tension spring are respectively in contact with the limit plate and the connecting plate, and when the conductive sheet is in contact with the first contact portion and the second contact portion at the same time, the tension spring is in a tightened state.

[0017] As a preferred solution of the quick disconnect device for the grounding down conductor of the distribution network line of the present invention, a disconnect buckle is also provided on the shell, and when the mounting block and the connecting plate are lifted and rotated, the clamping hole on the connecting plate can be clamped with the disconnect buckle.

[0018] The second object of the present invention is to provide a method for quickly disconnecting a grounding down conductor of a distribution network line, which can solve the problem of how to quickly disconnect the grounding down conductor.

[0019] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for quickly disconnecting a grounding down conductor of a distribution network line, based on the above-mentioned grounding down conductor quick disconnect device for a distribution network line, comprising: cutting and splitting a grounding down conductor into a first contact portion and a second contact portion; connecting the first contact portion and the second contact portion to a conductive sheet respectively; and synchronously rotating and adjusting the connecting plate and the mounting block to switch the conductive state or the disconnected state between the first contact portion and the second contact portion.

[0020] As a preferred solution of the method for quickly disconnecting the grounding lead of the distribution network line of the present invention, when the connecting plate and the mounting block are rotated until the clamping hole and the connecting buckle are clamped, the conductive sheet and the connecting piece are connected; when the mounting block and the connecting plate are lifted and rotated until the clamping hole and the disconnecting buckle are clamped, the conductive sheet and the connecting piece are disconnected.

[0021] The beneficial effects of the present invention are as follows: a grounding down conductor is cut off and split into a first contact portion and a second contact portion, and then connected through a connector, and the grounding down conductor is quickly disconnected by rotating the connector, so that a DC test transmitter can be used for test transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0023] Figure 1 This is the structural diagram of the quick disconnect device for the grounding down conductor of the distribution network line.

[0024] Figure 2 This is a structural diagram of the connector for the quick disconnect device for the grounding down conductor of the distribution network line. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a distribution network line grounding down conductor quick disconnect device, including a housing 100, a grounding down conductor 200 and a connector 300.

[0031] Specifically, the interior of the housing 100 is hollow to form an installation space, and openings are provided on the left and right sides.

[0032] Preferably, the grounding down conductor 200 is arranged on the shell 100, and is formed by a grounding down conductor 200 being disconnected from the middle to form a first contact portion 201 and a second contact portion 202 on the left and right sides, respectively. The first contact portion 201 and the second contact portion 202 pass through the openings on the left and right sides of the shell 100, respectively, wherein the first contact portion 201 is used for grounding, and the second contact portion 202 is used for connecting the three-phase PT.

[0033] Preferably, the connector 300 is rotatably mounted on the housing 100. By rotating the connector 300 to switch the conductive state or the disconnected state between the connector 300 and the first contact portion 201 and the second contact portion 202, the conductive state of the grounding down lead can be quickly switched, thereby improving the fault handling efficiency of the power system.

[0034] Example 2

[0035] This is the second embodiment of the present invention.

[0036] The structure of the housing 100 of this embodiment is the same as that of the first embodiment, and is used to protect the internal components and provide a stable installation platform. The structure of the grounding down conductor 200 is the same as that of the first embodiment, and is connected to the external device through the first contact portion 201 and the second contact portion 202. The connector 300 is made of copper material in this embodiment. The connector 300 has an anti-slip texture in this embodiment to improve the grip during operation and reduce the risk of slipping during operation.

[0037] Example 3

[0038] See also Figure 1 and Figure 2 , which is the third embodiment of the present invention, and this embodiment is based on embodiment 1.

[0039] Specifically, the connector 300 is in direct or indirect contact with the first contact portion 201 and the second contact portion 202. The direct or indirect contact method increases the flexibility of the connection, and the contact method can be selected according to actual needs to improve the adaptability and reliability of the device. Indirect contact is used in this embodiment.

[0040] Preferably, a conductive sheet 400 is further included, and the conductive sheet 400 is arranged on the housing 100. There are two conductive sheets 400, the left conductive sheet 400 is located between the first contact portion 201 and the connector 300, and the left conductive sheet 400 can conduct the first contact portion 201 and the connector 300, and the right conductive sheet 400 is located between the second contact portion 202 and the connector 300, and the right conductive sheet 400 can conduct the second contact portion 202 and the connector 300. The introduction of the conductive sheet 400 makes the conduction and disconnection of the grounding down conductor 200 stable and reliable, and the two conductive sheets 400 improve the flexibility and safety of the device.

[0041] Preferably, both the first contact portion 201 and the second contact portion 202 are provided with a card hole 500, and the conductive sheet 400 is provided with a connecting buckle 401, and the material of the connecting buckle 401 is copper. When the card hole 500 is engaged with the connecting buckle 401, the conductive sheet 400 is connected with the connecting member 300, providing a simple and effective connection and disconnection mechanism, making the operation faster and more accurate.

[0042] Preferably, the connecting member 300 includes a connecting plate 301 and a mounting block 302, the connecting plate 301 is snap-connected with the mounting block 302, an opening is provided at the bottom of the mounting block 302 to form a receiving space, a card groove is provided on the inner wall of the receiving space, the connecting plate 301 passes through the receiving space and is snap-connected with the card groove on the inner wall of the receiving space, so that the connecting plate 301 and the mounting block 302 rotate synchronously, ensuring the consistency and stability of the operation and reducing errors during the operation.

[0043] Preferably, the connector 300 also includes a mounting column 303, which is disposed on the housing 100, the mounting column 203 being located in the area between the first contact portion 201 and the second contact portion 202, and the mounting column 203 being also located in the accommodating space of the mounting block 302, and a mounting hole 304 being provided on the connecting plate 301, and the mounting column 303 being inserted into the mounting hole 304.

[0044] Furthermore, the mounting post 303 is provided with a stopper 305, the stopper 305 is located at the top of the mounting post 303, the stopper 305 is circular in shape, and the mounting post 303 is sleeved with a tension spring 306, the two ends of the tension spring 306 are respectively in contact with the stopper 305 and the connecting plate 301, when the conductive sheet 400 is in contact with the first contact portion 201 and the second contact portion 202 at the same time, the tension spring 306 is in a tightened state. The tension spring 306 not only provides a buffer for the connector 300 but also provides an axial positioning function.

[0045] Furthermore, the housing 100 is provided with a disconnection buckle 600. When the mounting block 302 and the connecting plate 301 are lifted and rotated, the clamping hole 500 on the connecting plate 301 can be clamped with the disconnection buckle 600. Under the action of the tension spring 306, the clamping hole 500 can be clamped stably with the disconnection buckle 600 to avoid loosening.

[0046] Example 4

[0047] See also Figure 1 and Figure 2 , which is the fourth embodiment of the present invention, and this embodiment is based on the above embodiment.

[0048] S100: a grounding down conductor 200 is cut in the middle and split into a first contact portion 201 and a second contact portion 202 on the left and right sides;

[0049] S200: Connecting the first contact portion and the second contact portion to the conductive sheet 400 respectively;

[0050] S300: synchronously rotating and adjusting the connecting plate 301 and the mounting block 302 to switch the conducting state or disconnecting state between 301 and the first contact portion 201 and the second contact portion 202;

[0051] S301: When the connecting plate 301 and the mounting block 302 are rotated until the locking hole 500 and the connecting buckle 401 are locked, the conductive sheet 400 and the connecting member 300 are connected;

[0052] S302: The mounting block 302 and the connecting plate 301 are lifted and rotated until the locking hole 500 is locked with the disconnecting buckle 600, and the conductive sheet 400 is disconnected from the connecting member 300.

[0053] Based on the above, the beneficial effects of the present invention are:

[0054] The operator splits the original grounding down conductor into two to form a first contact part and a second contact part respectively, and connects the first contact part and the second contact part through a connecting piece, that is, by rotating the connecting piece, the first contact part and the second contact part are quickly disconnected, so that the grounding wire of the three-phase PT is quickly disconnected, which is convenient for the use of the DC test transmitter and reduces the troubleshooting time.

[0055] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0056] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0057] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A quick disconnect device for grounding down conductor of distribution network line, characterized in that: include: Housing (100); A grounding down conductor (200) is arranged on the housing (100), the grounding down conductor (200) is arranged in a disconnected manner and respectively forms a first contact portion (201) and a second contact portion (202), the first contact portion (201) is used for grounding, and the second contact portion (202) is used for connecting a three-phase PT; And a connecting member (300) mounted on the housing (100) is rotatably mounted, and the connecting member (300) is rotated to switch the conducting state or disconnecting state between the connecting member (300) and the first contact portion (201) and the second contact portion (202).

2. The distribution network line grounding down conductor quick disconnect device according to claim 1, characterized in that: The connecting member (300) is in direct or indirect contact with the first contact portion (201) and the second contact portion (202).

3. The quick disconnect device for grounding down conductor of distribution network line according to claim 2, characterized in that: It also includes a conductive sheet (400), which is arranged on the housing (100), and two conductive sheets (400) are provided, one of which is used to conduct the first contact portion (201) and the connecting member (300), and the other conductive sheet (400) is used to conduct the second contact portion (202) and the connecting member (300).

4. The distribution network line grounding down conductor quick disconnect device as claimed in claim 3, characterized in that: The first contact portion (201) and the second contact portion (202) are both provided with a locking hole (500), and the conductive sheet (400) is provided with a connecting buckle (401); when the locking hole (500) is locked with the connecting buckle (401), the conductive sheet (400) is connected to the connecting member (300).

5. The distribution network line grounding down conductor quick disconnect device as claimed in claim 4, characterized in that: The connecting member (300) comprises a connecting plate (301) and a mounting block (302); the connecting plate (301) and the mounting block (302) are snap-connected with each other; and the connecting plate (301) and the mounting block (302) rotate synchronously.

6. The grounding down conductor quick disconnect device for a distribution network line as claimed in claim 5, characterized in that: The connecting member (300) further comprises a mounting column (303), wherein the mounting column (303) is arranged on the housing (100), and a mounting hole (304) is provided on the connecting plate (301), and the mounting column (303) is inserted into the mounting hole (304).

7. The distribution network line grounding down conductor quick disconnect device according to claim 6, characterized in that: The mounting column (303) is provided with a limiting plate (305), and the mounting column (303) is sleeved with a tension spring (306), and the two ends of the tension spring (306) are respectively in contact with the limiting plate (305) and the connecting plate (301), and when the conductive sheet (400) is in contact with the first contact portion (201) and the second contact portion (202) at the same time, the tension spring (306) is in a tightened state.

8. The distribution network line grounding down conductor quick disconnect device according to claim 6 or 7, characterized in that: The housing (100) is also provided with a disconnect buckle (600), and when the mounting block (302) and the connecting plate (301) are lifted and rotated, the latching hole (500) on the connecting plate (301) can be latched with the disconnect buckle (600).

9. A method for quickly disconnecting a grounding down conductor of a distribution network line, characterized in that: The grounding down conductor quick disconnect device for a distribution network line according to any one of claims 1 to 8 comprises: Cutting a grounding down conductor (200) and splitting it into a first contact portion (201) and a second contact portion (202); Connecting the first contact portion and the second contact portion to the conductive sheet (400) respectively; The connection plate (301) and the mounting block (302) are synchronously rotated and adjusted to switch the conductive state or disconnected state between the connection plate (301) and the first contact portion (201) and the second contact portion (202).

10. The method for quickly disconnecting the grounding down conductor of a distribution network line according to claim 9, characterized in that: When the connecting plate (301) and the mounting block (302) are rotated until the locking hole (500) and the connecting buckle (401) are locked, the conductive sheet (400) and the connecting member (300) are connected; when the mounting block (302) and the connecting plate (301) are lifted and rotated until the locking hole (500) and the disconnecting buckle (600) are locked, the conductive sheet (400) and the connecting member (300) are disconnected.

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