Outdoor high-voltage power transmission and distribution emergency power supply quick access device

Abstract

This application relates to a rapid access device for emergency power supply in outdoor high-voltage power transmission and distribution, belonging to the technical field of power supply and distribution. It includes a mounting base, an insulator, and a conductor. The insulator covers the circumferential sidewalls of the conductor and is fixed to the mounting base. The lower end of the conductor has a power input interface, and the upper end has a bent conductor. The bent conductor includes a vertical portion and a bent portion located at the upper end of the vertical portion. The vertical portion is detachably connected to the upper end of the conductor. This application achieves flexible replacement of the bending angle by designing the bent conductor as a structure detachably connected to the upper end of the conductor. This structure allows the device to adapt to different overhead line routes and spatial layout constraints, solving the installation compatibility problem caused by the fixed angle of traditional integrated bent conductors. Furthermore, the bent conductor can be replaced separately, reducing overall maintenance costs while maintaining the integrity of the main conductor structure, ensuring long-term electrical stability.

Description

Technical Field

[0001] This application relates to the field of power supply and distribution technology, and in particular to a rapid access device for emergency power supply for outdoor high-voltage power transmission and distribution. Background Technology

[0002] Outdoor high-voltage emergency power supply rapid access devices, as key equipment for improving the emergency power supply efficiency of power distribution lines, have been widely applied in the field of power security. These devices, pre-installed on specific utility poles, enable rapid access for medium-voltage mobile power vehicles or bypass cables, significantly simplifying the complex process of traditional live-line access.

[0003] In the prior art, such as Chinese Patent No. CN208904555U, a fast power supply connection device for 10kV overhead power distribution lines is disclosed. It generally adopts a conductive connection part integrally formed with the conductor to form a 90° bent L-shaped conductive path.

[0004] Regarding the above technical solution, the inventors believe that although the design of the above access device can complete the basic conductive function, it has the following defects: On the one hand, the bending angle between the conductive connection part and the conductor is fixed, which cannot adapt to diverse line routes and spatial constraints. In complex towers or narrow working scenarios, it is easy to cause installation difficulties due to angle conflicts; on the other hand, the transition between the conductive connection part and the conductor, i.e. the bending part, is subjected to unidirectional stress concentration for a long time. Especially under the conditions of thermal expansion and contraction of the conductor or wind vibration, metal fatigue cracks are easy to start from the root of the bend, affecting the service life of the device. Utility Model Content

[0005] To facilitate adaptation to diverse line routes and spatial constraints, and to extend the service life of the device, this application provides a rapid access device for emergency power supply for outdoor high-voltage power transmission and distribution.

[0006] This application provides a rapid connection device for emergency power supply in outdoor high-voltage power transmission and distribution, which adopts the following technical solution:

[0007] An outdoor high-voltage power transmission and distribution emergency power supply quick access device includes a mounting base, an insulator, and a conductor. The insulator covers the circumferential sidewall of the conductor and is fixed to the mounting base. The lower end of the conductor is provided with a power input interface, and the upper end of the conductor is provided with a bent conductor. The bent conductor includes a vertical part and a bent part located at the upper end of the vertical part. The vertical part is detachably connected to the upper end of the conductor.

[0008] Optionally, the included angle α between the vertical part and the bent part is in the range of 90°≤α<180°.

[0009] Optionally, the upper end of the conductor is provided with an internal threaded connection hole, and the lower end of the vertical part is provided with an external threaded part that matches the internal threaded connection hole.

[0010] Optionally, the mounting base is provided with a through hole through which an insulator can pass, the insulator is provided with an upper limit part, and a lower limit part is sleeved on the outside of the insulator. The upper limit part and the lower limit part respectively abut against the two ends of the through hole, and the upper limit part and the lower limit part are detachable and fixed.

[0011] Optionally, the upper limit part and the lower limit part are fixedly connected by bolts, and the mounting base is provided with fixing holes through which the bolts can pass.

[0012] Optionally, the lower end of the lower limit part is provided with an interface housing, and a plug-in space is provided between the interface housing and the power supply interface.

[0013] Optionally, a sealing plug for blocking the power supply interface is inserted into the plugging space.

[0014] Optionally, the mounting base is provided with at least three mounting holes.

[0015] Optionally, the mounting base is provided with a handle.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. By designing the bent conductor as a detachable connection to the upper end of the conductor, the angle of the bend can be flexibly changed. This structure allows the device to adapt to different overhead line routes and spatial layout constraints, solving the installation compatibility problems caused by the fixed angle of traditional integrated bent conductors. The detachable design simplifies the maintenance process, allowing for the individual replacement of deformed, worn, and aged bent conductors, reducing overall maintenance costs while preserving the integrity of the main conductor structure and ensuring long-term electrical stability.

[0018] 2. The interface shell creates a secondary protective layer for the power supply interface; the insertion space guides and positions the emergency power plug and sealing plug. The sealing plug physically isolates the core conductive area of ​​the power supply interface from moisture and dust, preventing creepage accidents caused by insulation deterioration. The pluggable sealing plug can be quickly removed during emergency connection, shortening the power vehicle's grid connection time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to an embodiment of this application.

[0020] Figure 2 This is a cross-sectional view illustrating the overall structure of the embodiments of this application.

[0021] Figure 3 This is an exploded view illustrating the mating relationship between the insulator and the mounting base in the embodiments of this application.

[0022] Figure 4 This is an exploded view illustrating the connection relationship between the bent conductor and the conductor in the embodiments of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Mounting base; 11. Through hole; 12. Fixing hole; 13. Mounting hole; 14. Handle; 2. Insulator; 21. Upper limit part; 3. Conductor; 31. Power input interface; 32. Internal threaded connection hole; 4. Lower limit part; 41. Bolt; 5. Interface housing; 51. Insertion space; 6. Sealing plug; 7. Bending conductor; 71. Vertical part; 711. External thread part; 72. Bending part. Detailed Implementation

[0024] The following combination Figures 1-4 This application will be described in further detail below.

[0025] Example:

[0026] This application discloses a rapid access device for emergency power supply in outdoor high-voltage power transmission and distribution. (Refer to...) Figure 1 and Figure 2 An outdoor high-voltage power transmission and distribution emergency power supply quick access device includes a mounting base 1, an insulator 2, and a conductor 3. The insulator 2 covers the circumferential sidewall of the conductor 3 and is detachably fixed to the mounting base 1. A power extraction interface 31 is provided at the lower end of the conductor 3. In this embodiment, the mounting base 1 has an open-top elongated box structure with the opening facing downwards, and three sets of insulators 2 and conductors 3 are mounted on the mounting base 1.

[0027] Reference Figure 2 and Figure 3 The upper thin wall of the mounting base 1 has a through hole 11 for the insulator 2 to pass through. An upper limit portion 21 is integrally formed on the circumferential side wall of the insulator 2, and a lower limit portion 4 is fitted onto the outer side of the insulator 2. The upper limit portion 21 and the lower limit portion 4 respectively abut against the two ends of the through hole 11, and the upper limit portion 21 and the lower limit portion 4 are detachably fixed. Specifically, the upper limit portion 21 and the lower limit portion 4 are fixedly connected by bolts 41, and the upper thin wall of the mounting base 1 has a fixing hole 12 for the bolts 41 to pass through. Thus, the through hole 11, combined with the double-end clamping design of the upper limit portion 21 and the lower limit portion 4, ensures that the force on the insulator 2 is evenly distributed on the mounting base 1 and effectively suppresses the axial movement of the insulator 2. The detachable fixing method of the insulator 2 facilitates on-site replacement of the insulator 2 and its built-in conductor 3, avoiding the disadvantage of the traditional cast-cured insulator 2 requiring complete scrapping when damaged, and extending the lifespan of the device.

[0028] Reference Figure 1The mounting base 1 has at least three mounting holes 13 to form a stable mounting support structure. In this embodiment, the mounting holes 13 are elongated holes to facilitate fine-tuning of the mounting position of the mounting base 1. Handles 14 are hinged to both sides of the mounting base 1 to provide fulcrum for workers at height. During installation or maintenance, holding the handles 14 can stabilize the device's posture and avoid the risk of the device falling due to slippage.

[0029] Reference Figure 2 and Figure 3 The lower end of the lower limit part 4 is detachably connected to an interface housing 5, and a plug-in space 51 is formed between the interface housing 5 and the power supply interface 31. In this embodiment, the interface housing 5 is threaded onto the lower end of the lower limit part 4. The interface housing 5 forms a secondary protective layer for the power supply interface 31, and the plug-in space 51 facilitates the guiding and positioning of the emergency power plug.

[0030] Reference Figure 2 and Figure 3 To prevent moisture and dust from entering the core conductive area of ​​the power interface 31 when it is idle, thus causing insulation deterioration and creepage accidents, a sealing plug 6 is inserted into the insertion space 51 to seal the power interface 31 when it is idle. The insertion space 51 also provides guidance and positioning for the sealing plug 6, facilitating quick insertion and removal of the sealing plug 6, ensuring that the sealing plug 6 can be quickly removed during emergency connection, and shortening the power vehicle grid connection operation time.

[0031] Reference Figure 2 and Figure 4 The conductor 3 has a bent conductor 7 connected to its upper end. The bent conductor 7 includes a vertical part 71 and a bent part 72 integrally formed on the upper end of the vertical part 71. The vertical part 71 is detachably connected to the upper end of the conductor 3, and the bent part 72 is used to connect with the branch cable of the overhead line. Specifically, the upper end of the conductor 3 has an internal threaded connection hole 32, and the lower end of the vertical part 71 has an external threaded part 711 that matches the internal threaded connection hole 32. The engagement between the internal threaded connection hole 32 and the external threaded part 711 does not require additional connecting parts and maintains reliable contact under high-voltage vibration conditions, avoiding a sharp increase in contact resistance at the connection between the conductor 3 and the bent conductor 7 due to loosening.

[0032] Reference Figure 4 The angle α between the vertical part 71 and the bending part 72 ranges from 90° to 180°. This bending angle range covers most line connection scenarios, and is particularly suitable for complex terrains such as mountainous areas and densely populated urban areas, improving the environmental versatility of the device. The replaceability of the bent conductor 7 enables the adjustability of the current-draining angle of the bending part 72, further optimizing the conductor tension distribution and reducing the risk of metal fatigue caused by wind vibration.

[0033] The implementation principle of the outdoor high-voltage power transmission and distribution emergency power rapid access device according to this application embodiment is as follows: by designing the bent conductor 7 as a structure that can be detachably connected to the upper end of the conductor 3, the flexible replacement of the bending angle 72 is achieved. This structure enables the emergency power rapid access device to adapt to different overhead line routes and spatial layout constraints, solving the installation compatibility problem caused by the fixed angle of the traditional integrated bent conductor 7. The detachable design simplifies the maintenance process, allowing for the individual replacement of deformed, worn, and aged bent conductors 7, reducing overall maintenance costs, while preserving the integrity of the main structure of the conductor 3, ensuring the long-term electrical stability of the access device.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An outdoor high-voltage power transmission and distribution emergency power supply quick access device, comprising a mounting base (1), an insulator (2), and a conductor (3), wherein the insulator (2) covers the circumferential sidewall of the conductor (3), the insulator (2) is fixed on the mounting base (1), and the lower end of the conductor (3) is provided with a power extraction interface (31), characterized in that: The upper end of the conductor (3) is provided with a bent conductor (7), which includes a vertical part (71) and a bent part (72) provided at the upper end of the vertical part (71). The vertical part (71) is detachably connected to the upper end of the conductor (3).

2. The outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to claim 1, characterized in that: The angle α between the vertical part (71) and the bent part (72) is in the range of 90°≤α<180°.

3. The outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to claim 1, characterized in that: The upper end of the conductor (3) is provided with an internal threaded connection hole (32), and the lower end of the vertical part (71) is provided with an external threaded part (711) that is adapted to the internal threaded connection hole (32).

4. The outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to claim 1, characterized in that: The mounting base (1) is provided with a through hole (11) through which the insulator (2) can pass. The insulator (2) is provided with an upper limit part (21). The lower limit part (4) is sleeved on the outside of the insulator (2). The upper limit part (21) and the lower limit part (4) respectively abut against the two ends of the through hole (11). The upper limit part (21) and the lower limit part (4) are detachable and fixed.

5. The outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to claim 4, characterized in that: The upper limit part (21) and the lower limit part (4) are fixedly connected by bolts (41), and the mounting base (1) is provided with fixing holes (12) through which the bolts (41) can pass.

6. The outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to claim 4, characterized in that: The lower end of the lower limit part (4) is provided with an interface shell (5), and a plug-in space (51) is provided between the interface shell (5) and the power supply interface (31).

7. The outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to claim 6, characterized in that: A sealing plug (6) for blocking the power supply interface (31) is inserted into the insertion space (51).

8. The outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to claim 1, characterized in that: The mounting base (1) is provided with at least three mounting holes (13).

9. The outdoor high-voltage power transmission and distribution emergency power supply rapid access device according to claim 1, characterized in that: The mounting base (1) is provided with a handle (14).

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