CN219086667U

CN219086667U - Integral uninterrupted replacement protection device for drop-out fuse faults

Info

Publication number: CN219086667U
Application number: CN202222900237.8U
Authority: CN
Inventors: 郑乔; 杨军; 何金波; 陈潞; 倪烨; 陈晨辉; 裘炜望
Original assignee: Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Current assignee: Taizhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-05-26
Anticipated expiration: 2032-10-28

Abstract

The utility model provides a whole uninterrupted replacement protection device for a drop-out fuse fault, which solves the problem of inconvenient live working of the drop-out fuse in the prior art. The utility model is convenient for connection with different types of cross arms of the drop-out fuse, can fix the lead wire of the drop-out fuse in the replacement or maintenance process, can realize temporary short circuit to the position of the drop-out fuse through the bypass lead wire, avoids the phenomenon of large-area power failure, and improves the safety of operation.

Description

Integral uninterrupted replacement protection device for drop-out fuse faults

Technical Field

The utility model belongs to the technical field of power safety operation, and particularly relates to a protection device for replacing a drop-out fuse in an integral uninterrupted manner.

Background

The existing drop-out fuses have some unavoidable problems:

(1) When the angle of the melting pipe does not meet the regulation requirement, especially after the original melting pipe is burnt out, the size of the melting pipe which is complemented is not up to the regulation requirement, and the contact is bad and burnt out;

(2) Some products have improper fusion tube size and fuse fixed contact part size matching, and very easy becoming flexible, in case meet exogenic action, vibration or strong wind weather in operation, can cause the contact to contact poorly and burn out.

Because of the above problems, the drop-out fuse has a high probability of power failure in daily use, and there are many failures not only of the fuse tube but also of the drop-out fuse holder, which can be eliminated by replacing the fuse as a whole.

The existing method for integrally replacing the drop-out fuse is that the superior circuit and the fault circuit are changed into the power failure maintenance state at the same time, and then personnel are arranged to detach the field damage device and install new equipment. In this way, the power outage range is inevitably widened.

In order to reduce the influence of power failure on customer power consumption, live working has been vigorously developed in power distribution network maintenance in recent years. Live working plays a great role in improving the power supply reliability and ensuring the power consumption of customers, but because the live working developed at present reduces the power consumption load of all customers at the load side behind the working point, the line can only work under the no-load state, the power consumption of the customers behind the working point is influenced, the power supply quantity is small, and the real uninterrupted operation cannot be achieved.

In addition, in actual operation, when the drop-out fuse is replaced/repaired in a live line, an isolation measure is required between two adjacent phases. And need fix the lead wire when dismantling the upper and lower lead wire of drop-out fuse, avoid the short circuit risk that the overlap joint caused at will, therefore design a simple to operate, protection device that can fine assurance operation safety simultaneously is very necessary.

Disclosure of Invention

In order to solve the problem that the live working of the drop-out fuse is inconvenient in the prior art, the utility model provides the integral uninterrupted replacement protection device for the faults of the drop-out fuse, the connection with different types of cross arms of the drop-out fuse is facilitated through the fixing component, the installation is convenient, the lead wire of the drop-out fuse in the replacement or maintenance process can be fixed, meanwhile, the temporary short circuit can be realized on the position of the drop-out fuse through the bypass lead wire, the large-area outage phenomenon is avoided, and the safety of the operation is improved.

The utility model provides a drop-out fuse fault integral uninterrupted replacement protection device, which comprises a support plate, wherein one end of the support plate is connected with a fixing part, the other end of the support plate is connected with a first insulating tube, an insulating baffle plate positioned between two phase lines of the drop-out fuse is arranged on the support plate, a second insulating tube is arranged on the support plate, two ends of the second insulating tube are respectively provided with a lead locking part, bypass leads are inserted into the first insulating tube, and two ends of the bypass leads are respectively provided with a wire clamp. The whole device can be conveniently supported on the cross arm of the drop-out fuse through the fixing part, the drop-out fuse can be temporarily shorted through the first insulating tube and the bypass lead inserted in the first insulating tube, the situation that the life of residents is unchanged due to long-time power failure is avoided, two phases can be isolated through the insulating baffle, and the safety of live working is guaranteed.

Preferably, the fixed part comprises an inverted U-shaped support frame, the support frame comprises two side plates and a bottom plate connected with the two side plates, a locking rod is arranged on one side plate of the support frame, the locking rod penetrates through the side plate and is in threaded connection with the side plate, a compression block is arranged at one end of the locking rod, located in a U-shaped cavity of the support frame, and one end of the support plate is fixedly connected with the support frame through a screw. The structure of the fixing part can be suitable for cross arms (angle steel, square steel and the like) of different types, and the locking rod can be remotely operated through the insulating operating rod, so that the safety effect is improved.

Preferably, the end of the other side plate of the support frame is provided with a bending part which bends towards the U-shaped cavity of the support frame, and the bending part is connected with a locking chain. The locking chain can avoid falling of the fixed part after failure in the use process, and the safety effect is improved.

Preferably, one end of the supporting plate is rotatably connected with a connector, and one end of the connector is provided with a hoop for clamping the first insulating tube. The detachable connection structure of the hoop structure is arranged between the first insulating tube and the connector, so that the position of the first insulating tube can be adjusted according to the requirement, the bypass lead wire is positioned at a position which is more convenient to short-circuit with the drop-out fuse, and the operation is convenient.

Preferably, the through groove is formed in the supporting plate, one end of the insulating baffle is inserted into the through groove, a mounting hole for mounting the second insulating tube is formed in one end of the through groove, and a clamping groove for clamping one side edge of the insulating baffle is formed in the side wall of the second insulating tube. Through the restriction of two dimensions of logical groove and draw-in groove like this, can guarantee the stability of insulating baffle installation, avoid insulating baffle's rocking in the use.

Preferably, the supporting plate is provided with a tightening screw for fixing the second insulating tube. The stability of the position of the second insulating tube is ensured.

Preferably, the wire locking component comprises a sleeve, a rotating rod and a wire clamp, wherein the sleeve is sleeved on the second insulating tube, one end of the rotating rod is rotationally connected to the side wall of the sleeve, and the other end of the rotating rod is connected with the wire clamp. The orientation of fastener can rotate like this, more convenient fixed to the drainage line.

Preferably, the cross arm insulation cover is covered on the cross arm of the drop-out fuse, and the insulating soft blanket is matched with the cross arm insulation cover for use, and the cross arm is completely covered by the cross arm insulation cover and the insulating soft blanket. Better isolation is realized, and safety is improved.

Preferably, the insulating baffle is made of epoxy resin material, and the thickness of the insulating baffle is 4-10mm. The protection effect is improved.

The technical scheme adopted by the utility model has at least the following technical effects:

1. the fixing part is convenient to connect with the cross arm of the drop-out fuse, is convenient to install, and can adapt to different types of cross arms (angle steel, square steel and the like);

2. the second insulating tube and the lead locking device are arranged, so that scattered leads in the operation process can be fixedly clamped, and the short-circuit risk caused by mess is avoided;

3. the drop-out fuse can be temporarily short-circuited through the first insulating tube and the inserted bypass lead wire therein, so that long-time power failure is avoided;

4. the two phases of the operation position can be isolated through the insulating baffle, so that the safety of live working is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic top view of the overall structure of the present utility model;

FIG. 2 is a schematic side view of FIG. 1 in accordance with the present utility model;

FIG. 3 is a schematic view of the structure of the fixing member of the present utility model;

FIG. 4 is a schematic view of a second insulating tube according to the present utility model;

fig. 5 is a schematic view of the cross arm insulation cover and the insulation soft blanket structure of the utility model.

In the figure: 1. a support plate; 2. a first insulating tube; 3. an insulating baffle; 4. a second insulating tube; 5. a bypass lead; 6. a wire clamp; 7. a support frame; 8. a locking lever; 9. a compaction block; 10. locking a chain; 11. a hoop; 12. a through groove; 13. a clamping groove; 14. tightly pushing the screw; 15. a cross arm insulating cover; 16; an insulating soft blanket; 17. and a wire locking member.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model discloses a protection device for replacing a drop-out fuse in an integral uninterrupted manner, which is installed in an area needing to be operated when the protection device is used, as shown in figures 1-5, the protection device comprises a support plate 1, one end of the support plate 1 is connected with a fixing part, the fixing part is fixedly connected with the support plate 1 through bolts/screws, the fixing part can support the whole device on a cross arm of the drop-out fuse, the fixing part is used as a fixing fulcrum of the whole device, the other end of the support plate 1 is connected with a first insulating tube 2, the first insulating tube 2 is far away from the drop-out fuse in position, a bypass lead 5 is inserted into the first insulating tube 2, the two ends of the bypass lead 5 are respectively provided with a wire clamp 6, the wire clamps at the two ends of the drop-out fuse are respectively connected with the two ends of the bypass lead 5 temporarily, the wire clamps 6 are respectively arranged at the two ends of the bypass lead 5 when the protection device is used, the wire clamps 6 are respectively used for clamping the two ends of the drop-out fuse conveniently, the two ends of the drop-out fuse are clamped by the insulating wire clamps, thus a temporary short circuit is formed, the drop-out circuit is broken down, and the life phenomenon caused by the power failure phenomenon of a resident is avoided.

In the operation process, because the interval space between two phases of the drop-out fuse is smaller, if no protective measures are taken, connection between the two phases is easily caused in the operation process, so that operators generate electric shock risks, in the application, the two phases of the drop-out fuse are isolated by installing the insulating baffle 3 positioned between the two phase lines of the drop-out fuse on the supporting plate 1, and the operation safety is improved.

In addition, because the upper and lower leads of the drop-out fuse need to be fixed in the operation process, the danger caused by random swing of the upper and lower leads is avoided, the second insulating tube 4 is installed on the supporting plate 1, and the two ends of the second insulating tube 4 are respectively provided with a lead locking part 17, so that the upper and lower leads of the drop-out fuse can be fixed.

One embodiment of the fixing component of the utility model comprises an inverted U-shaped supporting frame 7, wherein the supporting frame 7 comprises two side plates and a bottom plate for connecting the two side plates, referring to fig. 3, a locking rod 8 is arranged on one side plate of the supporting frame 7, the locking rod 8 penetrates through the side plate and is in threaded connection with the side plate, one end of the locking rod 8, which is positioned in a U-shaped cavity of the supporting frame 7, is provided with a compression block 9, when the fixing component is specifically used, firstly, the U-shaped space of the supporting frame 7 is downwards covered on a cross arm in an integral manner, so that the cross arm can play a supporting effect on the supporting frame 7, then, the locking rod 8 is remotely operated to rotate through an insulating operation rod, so that one end of the locking rod 8 with the compression block 9 is compressed on the cross arm, thus, the firm connection between the fixing component and the cross arm can be realized, and the structure of the fixing component in the application can be suitable for different types of cross arms (angle steel, square steel and the like), and the applicability is wide.

In addition, in order to avoid the risk of falling caused by the separation of the protection device and the cross arm in the application after the fixing firmware is loosened due to shaking or other factors in the use process, the end of the other side plate of the supporting frame 7 is provided with a bending part which bends towards the U-shaped cavity of the supporting frame 7, and the bending part is connected with a locking chain 10. The locking chain 10 can be fixed on the locking rod 8 after bypassing the lower part of the cross arm when in use, thus the supporting frame 7 and the locking chain 10 can form a closed space, the falling of the fixed part after failure in the use process can be avoided, and the safety effect is improved.

In order to realize the installation of the first insulating tube 2 and the convenience of shorting by-pass lead 5, a connector is rotatably connected to one end of the supporting plate 1, and one end of the connector is provided with a hoop 11 for clamping the first insulating tube 2. The detachable connection structure of the hoop 11 structure is arranged between the first insulating tube 2 and the connector, so that the position of the first insulating tube 2 can be adjusted according to the requirement, the bypass lead 5 is positioned at a position which is more convenient to short-circuit connection with the drop-out fuse, and the operation is convenient.

In order to realize stable installation of the insulating baffle 3, the through groove 12 is formed in the supporting plate 1, one end of the insulating baffle 3 is inserted into the through groove 12, one end of the through groove 12 is provided with a mounting hole for mounting the second insulating tube 4, and a clamping groove 13 for clamping one side edge of the insulating baffle 3 is formed in the side wall of the second insulating tube 4. Thus, the stability of the installation of the insulating baffle 3 can be ensured by the limitation of two dimensions of the through groove 12 and the clamping groove 13, and the shaking of the insulating baffle 3 in the use process is avoided.

In order to fix the second insulating tube 4, the support plate 1 is provided with a clamping screw 14 for fixing the second insulating tube 4. In use, the side wall of the second insulating tube 4 is pressed by the pressing screw 14 to be fixed on the support plate 1, wherein a plurality of pressing screws can be arranged to achieve better fixing effect.

One embodiment of the lead locking component 17 comprises a sleeve, a rotating rod and a wire clamp 6, wherein the sleeve is sleeved on the second insulating tube 4, one end of the rotating rod is rotatably connected to the side wall of the sleeve, and the other end of the rotating rod is connected with the wire clamp 6. The orientation of the wire clamp 6 can be adjusted in a rotating way, so that the drainage wire can be fixed more conveniently.

In order to further improve the protection effect, the utility model further comprises a cross arm insulating cover 15 which is covered on the cross arm of the drop-out fuse and an insulating soft blanket 16 which is matched with the cross arm insulating cover 15 for use, wherein the cross arm insulating cover 15 and the insulating soft blanket 16 completely cover the cross arm. Better isolation is realized, and safety is improved.

The utility model is convenient to connect with the cross arm of the drop-out fuse through the fixing part, is convenient to install, and can adapt to different types of cross arms (angle steel, square steel and the like); the second insulating tube 4 and the lead locking device are arranged, so that scattered leads in the operation process can be fixedly clamped, and the short-circuit risk caused by mess is avoided; the drop-out fuse can be temporarily short-circuited through the first insulating tube 2 and the inserted bypass lead 5 therein, so that long-time power failure is avoided; the two phases of the operation position can be isolated through the insulating baffle 3, so that the safety of live working is improved.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a whole uninterrupted replacement protector of drop-out fuse trouble, its characterized in that, including the backup pad, the one end of backup pad is connected with fixed part, the other end of backup pad is connected with first insulating tube, install the insulating barrier that is located between two phase lines of drop-out fuse in the backup pad, install the second insulating tube in the backup pad, the both ends of second insulating tube are equipped with lead wire locking part respectively, it has the bypass lead wire to alternate in the first insulating tube, the both ends of bypass lead wire are equipped with the fastener respectively.

2. The drop-out fuse fault integral uninterrupted replacement protection device according to claim 1, wherein the fixing component comprises an inverted U-shaped supporting frame, the supporting frame comprises two side plates and a bottom plate connected with the two side plates, a locking rod is installed on one side plate of the supporting frame, the locking rod penetrates through the side plate and is in threaded connection with the side plate, a compression block is arranged at one end of the locking rod, located in the U-shaped cavity of the supporting frame, and one end of the supporting plate is fixedly connected with the supporting frame through a screw.

3. The device for replacing and protecting a drop-out fuse in an integrated uninterrupted manner according to claim 2, wherein the end of the other side plate of the supporting frame is provided with a bending part bending into the U-shaped cavity of the supporting frame, and the bending part is connected with a locking chain.

4. The drop-out fuse fault integral uninterrupted replacement protection device of claim 1, wherein one end of the support plate is rotatably connected with a connector, and one end of the connector is provided with a hoop for clamping the first insulating tube.

5. The drop-out fuse fault integral uninterrupted replacement protection device according to claim 1, wherein a through groove is formed in the supporting plate, one end of the insulating baffle is inserted into the through groove, a mounting hole for mounting the second insulating tube is formed in one end of the through groove, and a clamping groove for clamping one side edge of the insulating baffle is formed in the side wall of the second insulating tube.

6. The drop-out fuse fault integral uninterruptible replacement protection device of claim 5, wherein the support plate is provided with a tightening screw for fixing the second insulating tube.

7. The drop-out fuse fault integral uninterrupted replacement protection device of claim 1, wherein the lead locking component comprises a sleeve, a rotating rod and a wire clamp, the sleeve is sleeved on the second insulating tube, one end of the rotating rod is rotatably connected to the side wall of the sleeve, and the other end of the rotating rod is connected with the wire clamp.

8. The drop-out fuse fault integral uninterrupted replacement protection device of claim 1, further comprising a cross arm insulation cover covered on a cross arm of the drop-out fuse and an insulation soft blanket matched with the cross arm insulation cover for use, wherein the cross arm insulation cover and the insulation soft blanket completely cover the cross arm.

9. The drop-out fuse fault integral uninterrupted replacement protection device of claim 1, wherein the insulating barrier is made of an epoxy resin material and has a thickness of 4-10mm.