Low-voltage overhead line emergency power supply device

By designing an emergency power supply device for low-voltage overhead lines, a rapid access node is formed on the low-voltage overhead busbar using connection clamps and connection poles, solving the problem of complex operation in existing technologies and realizing convenient emergency power supply and insulation protection.

CN224304925UActive Publication Date: 2026-05-29HANGZHOU SHOULIAN ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU SHOULIAN ELECTRIC CO LTD
Filing Date
2025-07-21
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the existing technology, low-voltage overhead lines lack suitable emergency power supply access devices, which makes emergency power supply operations complicated and unable to form fixed nodes, requiring repeated stripping operations.

Method used

An emergency power supply device for low-voltage overhead lines was designed, including a connection clamp, a connection pole, conductive components, and a protective cover. It is fixedly installed on the low-voltage overhead busbar, and the connection clamp and connection pole form a quick access node. The movement or removal of the protective cover enables convenient electrical connection and insulation protection.

Benefits of technology

It enables safe and convenient installation of emergency power supply for low-voltage overhead lines, forming a rapid access node that facilitates daily voltage testing, maintenance, and rapid access for emergency power generation vehicles, reducing operational difficulty and the hassle of repetitive operations.

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Abstract

The utility model discloses a kind of low-voltage overhead line emergency power supply devices, including power connection clamp, for connecting low-voltage overhead busbar;Electric pole, for connecting power taking calipers;Conductive part, for connecting the power connection clamp and the electric pole;Protective cover, inside with the protective cavity for accommodating the electric pole;The protective cover can be exposed to the electric pole by moving or disassembling relatively the electric pole.The utility model aims at solving the technical problem existing in prior art, and provides a kind of low-voltage overhead line emergency power supply device, it can be safely and conveniently installed on overhead busbar, and forms the quick access node of emergency power supply.
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Description

Technical Field

[0001] This utility model relates to the field of emergency power supply technology, specifically to an emergency power supply device for low-voltage overhead lines. Background Technology

[0002] The lack of suitable emergency power supply access devices for low-voltage overhead lines makes it difficult to meet the needs of emergency power supply operations. The old practice required stripping the insulation layer of the low-voltage overhead line and then temporarily connecting a bypass low-voltage cable to meet the emergency power supply access needs of the low-voltage de-energization bus.

[0003] The main drawback is that it cannot form a fixed node. After using traditional stripping operations, the insulation of the low-voltage overhead busbar needs to be restored, which is quite troublesome and requires repeated operations in the next operation. Utility Model Content

[0004] 1. Technical problem to be solved by the utility model

[0005] The purpose of this utility model is to solve the technical problems existing in the prior art and provide a low-voltage overhead line emergency power supply device, which can be safely and conveniently installed on the overhead bus to form a rapid access node for emergency power supply.

[0006] 2. Technical Solution

[0007] To solve the above problems, the technical solution provided by this utility model is as follows:

[0008] An emergency power supply device for low-voltage overhead lines includes a connection clamp for connecting to a low-voltage overhead busbar; a connection pole for connecting to a power-taking clamp; a conductive component for connecting the connection clamp and the connection pole; and a protective cover having an internal protective cavity for accommodating the connection pole. The protective cover is movable or detachable relative to the connection pole to expose the connection pole.

[0009] Preferably, the protective cover includes a housing and a cover, the cover being disposed on the housing to close the protective cavity, and both the housing and the cover being movable relative to the power receiving pole to expose the power receiving pole.

[0010] Preferably, both the housing and the cover are rotatably connected to the conductive element.

[0011] Preferably, the cover is driven to rotate synchronously by a linkage structure.

[0012] Preferably, the electrical clamp includes a first clamp and a second clamp, the distance between the first clamp and the second clamp is adjustable, and the first clamp is connected to the conductive component.

[0013] Preferably, it further includes an adjusting structure for adjusting the distance between the first chuck and the second chuck, the adjusting structure including an adjusting bolt, the adjusting bolt being rotatably connected to one of the chucks and threadedly connected to the other chuck.

[0014] Preferably, the first clamp is connected to the conductive component via a connecting seat, the connecting seat comprising a detachably connected upper connecting seat and a lower connecting seat.

[0015] Preferably, the inner surface of the connector is provided with an anti-slip structure.

[0016] Preferably, the first clamp and the second clamp are provided with an insulating shell.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0019] This low-voltage overhead line emergency power supply device can be safely and conveniently installed on the overhead busbar, forming a rapid access node for emergency power supply, facilitating daily voltage testing, grounding maintenance, and rapid access for emergency power generation vehicles. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a low-voltage overhead line emergency power supply device (protective cover closed) according to an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional schematic diagram of an emergency power supply device for low-voltage overhead lines proposed in an embodiment of the present utility model;

[0022] Figure 3 A schematic diagram of the structure of a low-voltage overhead line emergency power supply device proposed in an embodiment of this utility model (protective cover open);

[0023] 10. Electrical clamp; 101. First clamp; 102. Second clamp; 103. Insulating shell; 20. Electrical rod; 30. Conductive component; 40. Protective cover; 401. Cover; 402. Cover; 50. Linkage rod; 60. Adjusting bolt; 70. Connecting seat; 701. Upper connecting seat; 702. Lower connecting seat; 703. Anti-slip structure. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the scope of protection of this utility model.

[0025] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in the prior art and will not be elaborated further here. When a component is perpendicular or approximately perpendicular to another component, it means that the ideal state is perpendicularity, but due to manufacturing and assembly effects, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] The terms "first" and "second" in this utility model do not represent specific quantities or orders, but are merely used to distinguish names.

[0028] Combined with appendix Figures 1-3 This embodiment of an emergency power supply device for low-voltage overhead lines includes a connection clamp 10 for connecting to a low-voltage overhead busbar. There is no insulation layer at the connection point between the low-voltage overhead line and the connection clamp 10. The device is fixedly installed on the low-voltage overhead busbar via the connection clamp 10. A connection rod 20 is used to connect to a power-taking clamp. The connection rod 20 is a conductive metal component with a circular cylindrical structure, compatible with existing power-taking clamps. A conductive component 30 connects the connection clamp 10 and the connection rod 20. The conductive component 30 has a square ring structure. The connection clamp 10 is connected to the upper end of the conductive component 30, and the connection rod 20 is connected to the lower end of the conductive component 30. An insulating layer is provided on the surface of the conductive component 30. A protective cover 40 has an internal protective cavity for accommodating the connection rod 20. The protective cover 40 covers the connection rod 20. The protective cover 40 can be moved or disassembled relative to the connection rod 20 to expose the connection rod 20. The conductive metal of this device is made of aluminum alloy.

[0029] This low-voltage overhead line emergency power supply device uses lightweight conductive materials and is fixedly installed on the low-voltage overhead bus to form a fixed access node for emergency power supply. During use, the protective cover 40 is opened to expose the connecting rod 20, facilitating the connection of the overhead line power take-off clamp. After use, the protective cover 40 can be closed, providing overall insulation protection to prevent accidental short circuits caused by floating objects.

[0030] As a preferred embodiment of this utility model, the protective cover 40 includes a housing 401 and a cover 402. One side of the housing 401 is open to accommodate the cover 402. The cover 402 is located on the radial side of the connecting rod 20 and covers the housing 401 to close the protective cavity. Both the housing 401 and the cover 402 can move relative to the connecting rod 20 to expose the connecting rod 20. The housing 401 and the cover 402 can move relative to the connecting rod 20 in various ways, such as a snap-fit ​​detachable connection or a sliding connection. In this embodiment, a rotating connection is used, and both the housing 401 and the cover 402 are rotatably connected to the conductive component 30.

[0031] As a preferred embodiment of this utility model, the cover 401 and the cover 402 are rotatably connected to the conductive member 30 on the same side. The cover 401 and the cover 402 are opening and closing structures that can be opened in a V-shape. The cover 401 drives the cover 402 to rotate synchronously through the linkage structure. That is, when operating the cover 401, the operation of the cover 402 can be completed simultaneously, reducing the difficulty of single-person operation. The linkage structure includes a linkage rod 501. The cover 401 is hinged to the conductive member 30. The parts on both sides of the hinge point on the cover 401 are the first region and the second region, respectively. The first region is a closed region. The outer end face of the second region abuts against the linkage rod 501. The linkage rod 501 can drive the first region to move relative to the electric rod 20 in the form of a lever by applying force to the second region.

[0032] As a preferred embodiment of the present invention, the power connection clamp 10 includes a first clamp 101 and a second clamp 102. The first clamp 101 and the second clamp 102 are spaced apart to clamp the power connection rod 20 to achieve conductivity. The distance between the first clamp 101 and the second clamp 102 is adjustable, and the first clamp 101 is connected to the conductive component 30.

[0033] As a preferred embodiment of this utility model, it also includes a distance adjustment structure for adjusting the distance between the first clamp 101 and the second clamp 102. The distance between the first clamp 101 and the second clamp 102 is adjusted and fixed by the distance adjustment structure, so that the power connection clamp 10 can be stably clamped on the low-voltage overhead bus. Specifically, the distance adjustment structure includes an adjustment bolt 60, which is rotatably connected to one of the clamps and threadedly connected to the other clamp. The screw head of the adjustment bolt 60 is exposed outside the clamp for easy operation. When the adjustment bolt 60 rotates, the distance between the two clamps can be adjusted by the threaded engagement. In order to prevent the two clamps from rotating simultaneously when the adjustment bolt 60 rotates, the two clamps are connected by a guide rod. The guide rod is set parallel to the adjustment bolt 60, and the movable clamp is movably inserted into the guide rod.

[0034] As a preferred embodiment of this utility model, the first clamp 101 is connected to the conductive element 30 through the connecting seat 70. The connecting seat 70 includes an upper connecting seat 701 and a lower connecting seat 702 that are detachably connected. After the upper connecting seat 701 and the lower connecting seat 702 are engaged, they are fixed by bolts. The connecting seat 70 has a cylindrical hole inside that is adapted to the conductive element 30. This structural design is to make the relative angle between the power connection clamp 10 and the conductive element 30 adjustable, so as to facilitate the adaptation to low-voltage overhead busbars in different scenarios.

[0035] As a preferred embodiment of this utility model, the inner surface of the connector 70 is provided with an anti-slip structure 703. The anti-slip structure 703 is an anti-slip protrusion or anti-slip texture, which is used to increase the relative friction between the connector 70 and the conductive component 30, ensuring that the angle cannot be adjusted arbitrarily after it is fixed.

[0036] As a preferred embodiment of this utility model, the first clamp 101 and the second clamp 102 are provided with an insulating shell 103. The insulating shell 103 is a plastic shell and covers the connecting seat 70. Since the connecting seat 70 includes two detachable parts, the insulating shell 103 is also designed to be two detachable parts at the position of the connecting seat 70. These two parts are preferably connected by a snap-fit.

[0037] As a preferred embodiment of this utility model, in order to facilitate the operation of the cover 401, a pull ring is provided on the cover 401. Of course, it can also be designed into the shape of other handles.

[0038] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A low-voltage overhead line emergency power supply device, characterized in that: include Electrical connection clamps are used to connect low-voltage overhead busbars; A power connection pole, used to connect power-access clamps; A conductive element for connecting the electrical clamp and the electrical rod; The protective cover has an internal protective cavity for accommodating the power receiving pole; The protective cover can be moved or removed relative to the grounding pole to expose the grounding pole.

2. The low-voltage overhead line emergency power supply device according to claim 1, characterized in that: The protective cover includes a housing and a cover, the cover being disposed on the housing to close the protective cavity, and both the housing and the cover being movable relative to the power receiving pole to expose the power receiving pole.

3. The low-voltage overhead line emergency power supply device according to claim 2, characterized in that: Both the housing and the cover are rotatably connected to the conductive element.

4. The low-voltage overhead line emergency power supply device according to claim 3, characterized in that: The cover is driven to rotate synchronously by a linkage structure.

5. A low-voltage overhead line emergency power supply device according to any one of claims 1-4, characterized in that: The electrical clamp includes a first clamp and a second clamp, the distance between the first clamp and the second clamp is adjustable, and the first clamp is connected to the conductive component.

6. The low-voltage overhead line emergency power supply device according to claim 5, characterized in that: It also includes an adjustment structure for adjusting the distance between the first chuck and the second chuck, the adjustment structure including an adjustment bolt, the adjustment bolt being rotatably connected to one of the chucks and threadedly connected to the other chuck.

7. The low-voltage overhead line emergency power supply device according to claim 5, characterized in that: The first clamp is connected to the conductive component via a connecting seat, which includes a detachably connected upper connecting seat and a lower connecting seat.

8. The low-voltage overhead line emergency power supply device according to claim 7, characterized in that: The inner surface of the connector is provided with an anti-slip structure.

9. The low-voltage overhead line emergency power supply device according to claim 5, characterized in that: The first clamp and the second clamp are provided with an insulating shell.