Electricity testing and grounding device special for insulated cable terminal

Abstract

The invention relates to the technical field of line grounding protection, and discloses a special electricity testing and grounding device for an insulated cable terminal, which comprises a main body component, a connecting line, a cable and a connecting component, the connecting component is used for connecting the main body component, and the connecting component comprises a grounding accessory and a shell mounted outside the grounding accessory. The grounding fitting can be prevented from loosening due to up-and-down swinging caused by interference, the contact area is increased by adopting a surface-to-surface contact mode, and the grounding drainage capability is improved. The protection of the terminal connection part is ensured, the service life of the terminal is longer, the potential safety hazard is reduced, and the safety of operators is ensured. The insulation shield and the grounding ring protection cover are made of high-performance organic composite materials, have good insulation performance, anti-aging performance and flame retardant performance, improve the line insulation level, effectively prevent small animals from causing short-circuit harm to the terminal connection position, and play an insulation protection role.

Description

Technical Field

[0001] The invention relates to the technical field of line grounding protection, and in particular to a special electric testing and grounding device for an insulating cable terminal head. Background Art

[0002] The connection part between the cable lead-in line and the transmission and distribution line is a key connection point in the distribution network. Once a fault occurs, the direct and indirect economic losses are immeasurable. In order to ensure the safe and stable operation of the line, regular power outage maintenance is a key link to ensure the safety and stability of the transmission and distribution line. When performing maintenance work on the power equipment during the power outage, the ground wire must be hung, and the contact must be good, the overcurrent capacity must be strong, and the connection must be reliable to prevent the current backflow caused by sudden calls or the use of generators by individual enterprises and individuals in the line to harm the operators. At present, the main way to use the ground wire for power outage maintenance is that the operator directly hangs the ground wire at the connection between the cable lead-in line and the transmission and distribution line terminal after the operator has tested the electricity with the test pole. However, this grounding method has safety hazards: 1. The grounding operation is difficult, there is no reserved space for grounding operation at the terminal connection, and the contact area between the grounding rod and the terminal connection cannot be guaranteed, which is prone to poor contact and weakened grounding drainage capacity, leading to accidents. 2. Because the terminal connection is relatively fragile, it is easy to damage the terminal by directly hanging the ground wire at the terminal connection, resulting in a reduction in service life. 3. The terminal connection is exposed for a long time as a grounding position, which is prone to corrosion and lacks insulation protection. Summary of the invention

[0003] In view of the problems existing in the above-mentioned existing special electrical testing and grounding devices for insulating cable terminals, the present invention is proposed.

[0004] Therefore, the purpose of the present invention is to provide a special electrical testing and grounding device for an insulated cable terminal head, and its purpose is to provide a safe and reliable line grounding device, which can realize the grounding operation without damaging the terminal connection, and can use an insulating operating rod to open the protective cover to expose the grounding part, so that the line grounding is convenient and safe, and the safety of the grounding operation is ensured while effectively shortening the operation time and improving the efficiency of maintenance operations.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A special electrical testing and grounding device for an insulated cable terminal head includes a main body component, including connecting wires and cables, a connecting component for connecting the main body component, the connecting component includes a grounding accessory, and a shell installed outside the grounding accessory.

[0006] As a preferred solution of the special electrical testing and grounding device for the insulated cable terminal head of the present invention, the grounding accessory includes an L-shaped grounding head and a connecting seat, and one end of the L-shaped grounding head is fixed to the connecting seat.

[0007] As a preferred solution of the special electrical testing and grounding device for the insulated cable terminal head described in the present invention, one side of the connecting seat is provided with a through hole, in which a bolt is installed, and one side of the through hole is provided with two pin holes, in which pins are installed.

[0008] As a preferred solution of the special electrical testing and grounding device for the insulated cable terminal head of the present invention, the through hole and the L-shaped grounding head are perpendicular to each other, and the pin hole is located on the side away from the L-shaped grounding head.

[0009] As a preferred solution of the special electrical testing and grounding device for the insulated cable terminal head described in the present invention, the outer shell is composed of a first shell and a second shell, the first shell is composed of three sections to form a cavity, the first section is an arched section, the second section is a rectangular section, and the third section is a conical section, and a cylindrical cavity is fixedly connected to the rectangular section.

[0010] As a preferred solution of the dedicated electrical testing and grounding device for the insulated cable terminal head of the present invention, the outer edge of the first shell is evenly fixedly connected with fixing holes.

[0011] As a preferred solution of the special electrical testing and grounding device for the insulated cable terminal head described in the present invention, the second shell is composed of three sections, the first section is a rectangular cover, the second section is a rectangular cavity, and the third section is a conical cavity, and a large circular cavity and two small circular cavities are fixedly connected to the rectangular cavity.

[0012] As a preferred solution of the special electrical testing and grounding device for the insulated cable terminal head described in the present invention, the large circular cavity on the second shell and the cylindrical cavity on the first shell are used to accommodate the bolt, the small circular cavity on the second shell is used to accommodate the pin, and the outer edge of the second shell is fixedly connected with a buckle.

[0013] As a preferred solution of the special electrical testing and grounding device for the insulated cable terminal head of the present invention, one side of the large circular cavity on the second shell is fixedly connected with a hinge, and the hinge is located close to the side of the L-shaped grounding head.

[0014] As a preferred solution of the special electrical testing and grounding device for the insulated cable terminal head described in the present invention, wherein: a grounding protection cover is fixedly connected to the other end of the hinge, the grounding protection cover is consistent with the shape of the L-shaped grounding head, one side of the grounding protection cover is sealed by a gasket, and the other side of the grounding protection cover is fixedly connected to a handle.

[0015] Beneficial effects of the present invention: The present invention 1. Improves safety and reduces personal risks: When performing inspection and maintenance work and testing the electricity and grounding the cable heads, the staff can directly operate on the grounding device part, avoiding the safety risks caused by inaccurate electricity testing at the cable terminal heads and loose installation of the grounding wires.

[0016] 2. Extend service life: The grounding device has a special structure design. After the device is firmly installed, the grounding wire can be directly installed to the grounding device during maintenance, which reduces the wear on the connection of the cable terminal head. This not only improves the work efficiency of maintenance personnel, but also extends the life of the cable terminal head.

[0017] 3. Improve work efficiency: During the inspection and maintenance process, use the insulating operating rod to remove the grounding device from the protective cover to expose the grounding part, making the line grounding work more convenient and safe, effectively shortening the operation time and improving the efficiency of the inspection and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 work. Among them:

[0019] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0020] Figure 2 It is a schematic diagram of the structure of the grounding accessory of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the main component and the grounding accessories of the present invention.

[0022] Figure 4 The overall structure of the present invention is shown in FIG. Figure 2 .

[0023] Figure 5 A side view of the connecting member of the present invention Figure 1 .

[0024] Figure 6 It is a bottom view of the connecting component of the present invention.

[0025] Figure 7 A side view of the connecting member of the present invention Figure 2 .

[0026] In the figure:

[0027] 100, main body component; 101, connecting wire; 102, cable; 200, connecting component; 201, grounding accessory; 201a, L-shaped grounding head; 201b, connecting seat; 201c, through hole; 201d, pin; 201e, bolt; 202, outer shell; 202a, first shell; 202b, second shell; 202c, hinge; 202d, grounding protection cover; 202e, handle; 202f, fixing hole; 202g, buckle. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] Secondly, 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.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. 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.

[0032] Example 1

[0033] Reference Figures 1 to 3 , which is the first embodiment of the present invention, provides a special electrical testing and grounding device for the terminal head of an insulated cable 102, the device includes a main body part 100, including a connecting line 101 and a cable 102, a connecting part 200, used to connect the main body part 100, the connecting part 200 includes a grounding accessory 201, and a shell 202 installed outside the grounding accessory 201.

[0034] Specifically, the grounding accessory 201 includes an L-shaped grounding head 201a and a connecting seat 201b. One end of the L-shaped grounding head 201a is fixed to the connecting seat 201b. A through hole 201c is provided on one side of the connecting seat 201b, and a bolt 201e is installed in the through hole 201c. Two pin holes are provided on one side of the through hole 201c, and a pin 201d is installed in the pin holes. The through hole 201c and the L-shaped grounding head 201a are perpendicular to each other, and the pin hole is located on the side away from the L-shaped grounding head 201a.

[0035] Among them, compared with the straight grounding head, the L-shaped grounding head 201a can avoid the phenomenon of the operating rod falling from the end when it is hooked on the grounding wire due to misoperation. This design not only helps to reasonably arrange the location of electrical testing and detection, but also optimizes the maintenance process. The connecting seat 201b is a rectangular structure, and the contact surface of the rectangular structure is rectangular, which increases the contact area and ensures the grounding drainage capacity. The connecting seat 201b is used as a component to fix the L-shaped grounding head 201a, and is also used to fix the connecting line 101 and the cable 102. There is a through hole 201c on the connecting seat 201b that is arranged perpendicular to the direction of the L-shaped grounding head 201a. The through hole 201c allows the bolt 201e to pass through, thereby firmly fixing the connecting line 101 and the cable 102 together. Such a layout ensures that the bent part of the L-shaped grounding head 201a points to the direction of the grounding wire, thereby improving the accuracy and efficiency of the maintenance work.

[0036] In addition, two pin holes are provided on one side of the connection seat 201b. The two pin holes are located on the side away from the L-shaped grounding head 201a, and a pin 201d is installed inside. The pin 201d is located at the edge of the joint between the connecting wire 101 and the cable 102. The double-pin structure is limited by the cable joint, and the grounding wire part is fixed so that it will not swing up and down due to interference, which further enhances the stability of the structure and ensures the reliability of the entire device during use. In this way, the overall design enables power operation and maintenance personnel to complete the power testing and grounding operations more safely and conveniently when performing high-voltage equipment maintenance.

[0037] Example 2

[0038] Reference Figure 1 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the outer shell 202 is composed of a first shell 202a and a second shell 202b. The first shell 202a is composed of three sections to form a cavity. The first section is an arched section, the second section is a rectangular section, and the third section is a conical section. A cylindrical cavity is fixedly connected to the rectangular section. The outer edge of the first shell 202a is evenly fixedly connected with fixing holes 202f.

[0039] Furthermore, the second shell 202b is composed of three sections, the first section is a rectangular cover, the second section is a rectangular cavity, and the third section is a conical cavity. A large circular cavity and two small circular cavities are fixedly connected to the rectangular cavity. The large circular cavity on the second shell 202b and the cylindrical cavity on the first shell 202a are used to accommodate the bolt 201e, and the small circular cavity on the second shell 202b is used to accommodate the pin 201d. The outer edge of the second shell 202b is fixedly connected with a buckle 202g.

[0040] Among them, the second sections of the first shell 202a and the second shell 202b both accommodate the connecting seat 201b, the first sections of the first shell 202a and the second shell 202b are used to accommodate the connecting line 101, the third sections of the first shell 202a and the second shell 202b are used to accommodate the cables, and the buckle 202g on the second shell 202b is buckled with the fixing hole 202f on the first shell 202a to form a closed outer shell 202.

[0041] When in use, the housing 202 adopts a single opening structure for easy operation. The closed end adopts silica gel to prevent pollutants such as water vapor from contacting the exposed part and prevent the grounding accessory 201 from being exposed when idle.

[0042] Example 3

[0043] Reference Figures 1 to 7 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: a hinge 202c is fixedly connected to one side of the large circular cavity on the second shell 202b, and the hinge 202c is located close to the L-shaped grounding head 201a. A grounding protection cover 202d is fixedly connected to the other end of the hinge 202c. The grounding protection cover 202d has the same shape as the L-shaped grounding head 201a, one side of the grounding protection cover 202d is sealed by a gasket, and a handle 202e is fixedly connected to the other side of the grounding protection cover 202d.

[0044] When in use, there is no contact operation. When grounding needs to be inspected, the insulating operating rod can be used to pull the handle 202e, open the protective cover to perform grounding operations, and the grounding accessory 201 is connected to the wire terminal. The double pins clamp the edges of the two terminals to achieve the self-locking state of the grounding accessory 201, and close the terminal insulating protective cover. When it is necessary to shut down the power supply to inspect and hang the grounding wire, use the insulating operating rod to hook the handle 202e of the grounding part protective cover, push it outward until the grounding exposed part is exposed, and then hang the grounding wire to complete the grounding protection operation. After the operation is completed, close the grounding protective cover 202d.

[0045] 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.

[0046] 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.

[0047] 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 special electrical testing and grounding device for an insulated cable terminal, characterized in that: include, The main body component (100) includes a connecting line (101) and a cable (102). A connecting component (200) is used to connect the main body component (100), and the connecting component (200) comprises a grounding accessory (201) and a housing (202) installed outside the grounding accessory (201).

2. The special electrical testing and grounding device for insulated cable terminal head according to claim 1 is characterized in that: The grounding accessory (201) comprises an L-shaped grounding head (201a) and a connecting seat (201b), and one end of the L-shaped grounding head (201a) is fixed to the connecting seat (201b).

3. The special electrical testing and grounding device for insulated cable terminal head according to claim 2 is characterized in that: A through hole (201c) is provided on one side of the connection seat (201b), a bolt (201e) is installed in the through hole (201c), and two pin holes are provided on one side of the through hole (201c), pins (201d) are installed in the pin holes.

4. The special electrical testing and grounding device for insulated cable terminal head according to claim 3 is characterized by: The through hole (201c) and the L-shaped grounding head (201a) are perpendicular to each other, and the pin hole is located on a side away from the L-shaped grounding head (201a).

5. The special electrical testing and grounding device for insulated cable terminal head according to claim 3 or 4, characterized in that: The outer shell (202) is composed of a first shell (202a) and a second shell (202b). The first shell (202a) is composed of three sections to form a cavity. The first section is an arched section, the second section is a rectangular section, and the third section is a conical section. A cylindrical cavity is fixedly connected to the rectangular section.

6. The special electrical testing and grounding device for insulated cable terminal head according to claim 5 is characterized in that: The outer edge of the first shell (202a) is evenly and fixedly connected with fixing holes (202f).

7. The special electrical testing and grounding device for insulated cable terminal head according to claim 6 is characterized by: The second shell (202b) consists of three sections, the first section is a rectangular cover, the second section is a rectangular cavity, and the third section is a conical cavity, and a large circular cavity and two small circular cavities are fixedly connected to the rectangular cavity.

8. The special electrical testing and grounding device for insulated cable terminal head according to claim 7 is characterized in that: The large circular cavity on the second shell (202b) and the cylindrical cavity on the first shell (202a) are used to accommodate the bolt (201e), and the small circular cavity on the second shell (202b) is used to accommodate the pin (201d). The outer edge of the second shell (202b) is fixedly connected with a buckle (202g).

9. The dedicated electrical testing and grounding device for insulated cable terminal head according to claim 8, characterized in that: A hinge (202c) is fixedly connected to one side of the large circular cavity on the second shell (202b), and the hinge (202c) is located close to a side of the L-shaped grounding head (201a).

10. The dedicated electrical testing and grounding device for insulated cable terminal head according to claim 9, characterized in that: The other end of the hinge (202c) is fixedly connected to a grounding protection cover (202d); the grounding protection cover (202d) is consistent in shape with the L-shaped grounding head (201a); one side of the grounding protection cover (202d) is sealed by a gasket; and the other side of the grounding protection cover (202d) is fixedly connected to a handle (202e).

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