A fall protection power continuity replacement connection device

Abstract

The utility model discloses a kind of connecting devices for replacing under the condition of uninterrupted power supply, belong to the technical field of replacement of drop-out fuse, comprising: sleeve, the sleeve axis is provided with sliding element, and the sliding element with the sleeve axial sliding, circumferential locking cooperation;Hook, installed in the sleeve with the sliding element is away from one end, and the hook is provided with hooking portion;Wire, connected between two groups of hooks to form conductive path;Metallic connecting piece and the end of hook are attached or form conductive connection by bolt and metallic connecting piece, wire is installed between two metallic connecting pieces by fixed bolt on metallic connecting piece, to make two the hook, so that fuse two ends, hook, metallic connecting piece and wire can form a current path, to facilitate replacing fuse tube on fuse under the condition of uninterrupted power supply.

Description

Technical Field

[0001] This utility model relates to the field of drop fuse replacement technology, and in particular to a connection device for uninterrupted replacement of drop fuses. Background Technology

[0002] Drop-out fuses are commonly used short-circuit and overload protection devices in outdoor high-voltage power distribution lines. They are also called "drop-out insurance". Their core function is to quickly cut off the fault current when a short circuit or overload occurs in the line, so as to prevent the fault from spreading. At the same time, they can also serve as a clear disconnection point when the line is shut down or under maintenance, so as to ensure the safety of maintenance personnel.

[0003] Currently, the fuse tube can be replaced without interrupting power by connecting a wire to the upper and lower ends of the fuse. However, this requires workers to climb to a height to connect the wire to the two ends of the fuse, which is difficult and poses certain safety hazards.

[0004] Therefore, it is necessary to provide a connection device for uninterrupted power replacement of drop protection to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a connection device for uninterrupted replacement of drop fuses, in order to solve the problem mentioned in the background art that the current process of replacing fuse tubes requires workers to climb to heights to connect the wires to both ends of the fuse, which is difficult to operate and poses certain safety hazards.

[0006] Based on the above ideas, this utility model provides the following technical solution: a connection device for uninterrupted power replacement of drop fuses, comprising: A sleeve, wherein a sliding member is provided at the axis of the sleeve, and the sliding member is axially sliding and circumferentially locking with the sleeve; A hook is installed at the end of the sleeve opposite to the sliding member, and the hook is provided with a hooking part; A wire is connected between the two sets of hooks to form a conductive path; An elastic element is configured to enable an elastic connection between the sleeve and the sliding element along the axial direction of the sleeve.

[0007] As a further embodiment of this utility model: at least one set of slide rails is fixed along the axial direction of the inner wall of the sleeve, and a slider that slides with the slide rails is fixedly provided on the sliding member.

[0008] As a further embodiment of this utility model: one end of one hook extending into the interior of the sliding member and the other end of the hook extending into the sleeve are both fixedly connected to conductive metal connectors by bolts, and the wire is installed between the two metal connectors by fixing bolts on the metal connectors.

[0009] As a further embodiment of this utility model: a connector is installed on the metal connector by the fixing bolt, and the two ends of the elastic member are respectively connected to the connectors on the two sets of metal connectors.

[0010] As a further embodiment of this utility model, the elastic element is a rubber band.

[0011] As a further embodiment of this utility model: the sleeve wall is provided with an avoidance groove along its axial direction, so that when the sliding member moves relative to the sleeve along the axial direction of the sleeve, the hook and the attachment part installed on the sliding member can not interfere with the sleeve.

[0012] As a further embodiment of this utility model, the mounting portion is enclosed.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the metal connector is attached to the end of the hook or forms a conductive connection with the metal connector through bolts, and the wire is installed between the two metal connectors through the fixing bolts on the metal connector to conduct the two hooks, so that the two ends of the fuse, the hook, the metal connector and the wire can form a current path, which is conducive to replacing the fuse tube on the fuse without interrupting the power. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a diagram illustrating the application scenario of the device of this utility model; Figure 3 This is a schematic diagram of the sliding component, sleeve, and hook structure of this utility model; Figure 4 This is a cross-sectional view of the present invention along the axis of the sleeve; Figure 5 This is a schematic diagram of the elastic element and the conductor structure of this utility model; Figure 6 This is a utility model Figure 5 A magnified structural diagram at point A; Figure 7 This is a schematic diagram of the scroll structure of this utility model; Figure 8This is a schematic diagram showing the connection between the wire and the connector at the end of the sliding component of this utility model.

[0016] In the diagram: 1. Insulating rod; 101. Support part; 2. Sliding part; 201. Sliding block; 3. Sleeve; 301. Clearance groove; 302. Slide rail; 4. Hook; 401. Hanging part; 5. Elastic part; 6. Wire; 7. Connector; 8. Metal connector; 9. Fixing bolt; 10. Protrusion; 11. Positioning part; 12. Reel; 1201. Positioning hole. Detailed Implementation

[0017] like Figures 1-8 As shown, a drop fuse uninterrupted power replacement connection device includes a sleeve 3 and a sliding member 2 arranged along the axial direction of the sleeve 3, which slides axially and locks in a circumferential manner with the sleeve 3. Figures 1-2 As shown, hooks 4 are fixed to the opposite ends of the sliding member 2 and the sleeve 3, and a closed hook part 401 is integrally formed on the hook 4. It should be noted that the shape of the hook part 401 is not unique, and it can be ring, ellipse or square, etc. The two hooks 4 are connected by a wire 6, and the sliding member 2 is elastically engaged with the sleeve 3 along the axial direction of the sleeve 3. In actual use, the outwardly protruding support part 101 on the insulating rod 1 is inserted into the hook part 401, and the entire device is lifted to the side of the fuse so that the upper hook 4 is hooked at the top of the fuse. Then, the support part 101 on the insulating rod 1 is inserted into the hook part 401 of the lower hook 4 and the hook 4 is pulled down so that the sleeve 3 and the sliding member 2 can move relative to each other against the elastic force. When the lower hook 4 is hooked at the bottom of the fuse, a temporary passage can be formed at the fuse, so that the fuse wire on the fuse can be replaced without interrupting the power. It should be noted that the support part 101 is provided with two sets of protruding rings along its axial direction. During the hooking process, the hook part 401 is located between the two sets of protruding rings to prevent the hook part 401 from detaching from the support part 101.

[0018] Combination Figures 2-6 As shown, at least one set of slide rails 302 is fixed on the inner wall of the sleeve 3 along its axial direction, and a slider 201 that slides with the slide rails 302 is fixedly provided on the sliding member 2. The linear sliding cooperation between the slider 201 and the slide rails 302 can limit the relative rotation between the sliding member 2 and the sleeve 3, thereby preventing the elastic member 5 and the wire 6 between the two hooks 4 from getting tangled together.

[0019] The sleeve 3 has a clearance groove 301 on its cylindrical wall along its axial direction, so that when the sliding member 2 moves relative to the sleeve 3 along the axial direction of the sleeve 3, the hook 4 and the hanging part 401 installed on the sliding member 2 can not interfere with the sleeve 3, which is beneficial to increasing the adjustment distance between the two hooks 4.

[0020] One end of one hook 4 extending into the sliding member 2 and the other end of the hook 4 extending into the sleeve 3 are both fixedly connected to conductive metal connectors 8 by bolts. The metal connectors 8 can either fit against the end of the hook 4 or form a conductive connection with the metal connector 8 via bolts. Figures 5-6 As can be seen, the wire 6 is installed between the two metal connectors 8 through the fixing bolts 9 on the metal connector 8 to conduct the two hooks 4, so that the two ends of the fuse, the hooks 4, the metal connectors 8 and the wire 6 can form a current path, which is beneficial to replace the fuse tube on the fuse without interrupting the power.

[0021] The elastic element 5 can be a spring or a rubber band. In this solution, the elastic element 5 is preferably a rubber band. Figures 5-6 As shown, a connector 7 is mounted on the metal connector 8 via the fixing bolt 9, and both ends of the elastic element 5 are connected to the connectors 7 on the two sets of metal connectors 8 respectively. When the lower hook 4 is pulled down by the insulating rod 1, the sliding element 2 and the sleeve 3 will move in opposite directions, and the elastic element 5 will also be tightened. The elastic force of the elastic element 5 helps to stably attach the two sets of hooks 4 to the end position of the fuse.

[0022] Furthermore, combined Figures 7-8 As shown, the outer wall of the sliding member 2 is integrally formed with two sets of protrusions, and a scroll 12 is rotatably connected between the two sets of protrusions. It should be noted that the top end of the elastic member 5 is fixedly connected to the joint 7 at the end of the sleeve 3, and the bottom end of the elastic member 5 extends through the joint 7 at the end of the sliding member 2 to the outside of the sliding member 2 and is fixed to the outer circumferential surface of the scroll 12. With this structure, when the scroll 12 rotates, the length of the elastic member 5 between the two joints 7 can be adjusted. For example, as the usage time increases, the elastic force of the elastic member 5 decreases. At this time, the scroll 12 can be rotated to wind up the elastic member 5, thereby increasing the elastic force between the two hooks 4, so that the two hooks 4 can be stably attached to the end of the fuse. Of course, with this structure, fuses of different sizes can also be adapted.

[0023] Both the connector 7 and the sliding member 2 have through holes on their sidewalls for the elastic member 5 to pass through. An arc-shaped protrusion 10 is fixed to the side of the protrusion, and multiple sets of positioning holes 1201 are provided on the outer circumferential surface of the spool 12 opposite to the protrusion 10. The multiple sets of positioning holes 1201 are arranged in a ring array. A positioning member 11 that mates with the positioning hole 1201 is slidably fitted on the protrusion 10 along its diameter direction. When one end of the positioning member 11 is inserted into the positioning hole 1201, the spool 12 can be locked, so that the elastic member 5 between the two connectors 7 can maintain a specific length.

[0024] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A connection device for a fall protection battery backup replacement, characterized in that, include: Sleeve (3), wherein a sliding member (2) is provided at the axis of the sleeve (3), and the sliding member (2) is axially sliding and circumferentially locking with the sleeve (3); A hook (4) is installed at the end of the sleeve (3) that is opposite to the sliding member (2), and a hook (401) is provided at the hook (4). A wire (6) is connected between two sets of hooks (4) to form a conductive path; The elastic element (5) is configured to enable the elastic connection between the sleeve (3) and the sliding element (2) along the axial direction of the sleeve (3).

2. The drop fuse uninterrupted power replacement connection device according to claim 1, characterized in that: At least one set of slide rails (302) is fixed on the inner wall of the sleeve (3) along its axial direction, and a slider (201) that slides in cooperation with the slide rails (302) is fixed on the sliding member (2).

3. The connection device for replacing a fall-prevention power-continuation device according to claim 2, characterized in that: One end of one hook (4) extending into the sliding member (2) and the other end of the hook (4) extending into the sleeve (3) are both fixedly connected to conductive metal connectors (8) by bolts. The wire (6) is installed between the two metal connectors (8) by fixing bolts (9) on the metal connectors (8).

4. The drop fuse uninterrupted power replacement connection device according to claim 3, characterized in that: The metal connector (8) is fitted with a joint (7) by the fixing bolt (9), and the two ends of the elastic member (5) are respectively connected to the joints (7) on the two sets of metal connectors (8).

5. The connection device for replacing a fall-prevention power-continuation device according to claim 1, characterized in that: The elastic element (5) is a rubber band.

6. The drop fuse uninterrupted power replacement connection device according to claim 1, characterized in that: The sleeve (3) has a clearance groove (301) on its cylindrical wall along its axial direction, so that when the sliding member (2) moves relative to the sleeve (3) along the axial direction of the sleeve (3), the hook (4) and the attachment part (401) installed on the sliding member (2) can not interfere with the sleeve (3).

7. A connection device for uninterrupted power replacement of drop fuses according to claim 1, characterized in that: The mounting part (401) is enclosed.

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