CN219285353U

CN219285353U - Monitoring device for drop-out fuse

Info

Publication number: CN219285353U
Application number: CN202320246460.7U
Authority: CN
Inventors: 赵志国; 刘杰; 范雷; 仓瑞丽; 窦焱; 杨军箭; 郝安伟
Original assignee: State Grid Henan Electric Power Co Qixian Power Supply Co
Current assignee: State Grid Henan Electric Power Co Qixian Power Supply Co
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-30
Anticipated expiration: 2033-01-17

Abstract

The utility model relates to a monitoring device for a drop-out fuse, which belongs to the technical field of power monitoring and comprises a connecting circuit, an alarm transmitting device capable of sending an alarm signal, a trigger switch and a trigger acting on the trigger switch to enable the connecting circuit to be in open circuit, wherein the alarm transmitting device is correspondingly connected with the trigger switch through the connecting circuit, and the trigger switch and the trigger are oppositely arranged between a drop-out fuse base and a drop-out fuse fusion tube. When the drop-out fuse is opened, the trigger switch loses the action of the trigger through the movement of the fusion tube of the drop-out fuse, so that the connecting circuit is in a state of a passage, and the alarm transmitting device works, therefore, a worker can know the faults of the position in time, and the function of real-time monitoring is realized.

Description

Monitoring device for drop-out fuse

Technical Field

The utility model relates to the technical field of power monitoring, in particular to a monitoring device for a drop-out fuse.

Background

The drop-out fuse as a short-circuit protection device has the advantages of economy, practicability, convenience in operation, strong outdoor environment adaptability and the like, is widely installed and applied to 10kV distribution lines and distribution transformers, and has the functions of line protection, line maintenance switching operation and the like. Along with the acceleration of the power grid construction speed, the number of the drop-out fuses is greatly increased, and higher requirements on inspection and maintenance are set.

At present, the running state of the drop-out fuse cannot be monitored in real time, when a drop-out fuse tube falls off and breaks down, a maintainer cannot know where the fault happens in time, and the maintenance worker mainly reports the fault by an electricity utilization customer, and then the maintenance worker knows that the drop-out fuse tube breaks down after the maintenance worker reaches the on-site inspection.

Therefore, we provide a monitoring device for a drop-out fuse.

Disclosure of Invention

The present utility model has been made to solve the above-described problems, and an object of the present utility model is to provide a monitoring device for a drop-out fuse.

The utility model realizes the above purpose through the following technical scheme:

the utility model provides a monitoring devices for drop-out fuse, includes connecting circuit, still includes alarm emission device, trigger switch that can send alarm signal and acts on trigger switch and makes connecting circuit be in the trigger that opens circuit, alarm emission device passes through connecting circuit corresponds with trigger switch and is connected, trigger switch with the trigger is relative installs between drop-out fuse base and drop-out fuse fusion tube.

Preferably, the trigger switch comprises a cylindrical switch box, one end of the cylindrical switch box faces the trigger, one end of an inner cavity of the cylindrical switch box is provided with a fixed contact, and the inner cavity of the cylindrical switch box is also provided with a movable contact which can move along the length direction of the cylindrical switch box under the action of the trigger and is not contacted with the fixed contact.

Preferably, the inner cavity of the cylindrical switch box is also provided with a reset spring which can drive the movable contact to move when the movable contact loses the action of the trigger, so that the movable contact is contacted with the fixed contact.

Preferably, the inner cavity of the cylindrical switch box is provided with an iron movable block, one side of the movable block corresponding to the fixed contact is provided with a movable contact, and the trigger can drive the movable block to move so that the movable contact does not contact with the permanent magnet of the fixed contact.

Preferably, the fixed contact is arranged at one end of the inner cavity of the cylindrical switch box, which is far away from the trigger, and the reset spring is arranged at one side of the movable block, which is far away from the fixed contact.

Preferably, the inner cavity of the cylindrical switch box is provided with a polish rod along the length direction of the inner cavity, and the movable block and the reset spring are matched and sleeved on the polish rod body.

Preferably, the inner cavity of the cylindrical switch box is provided with a movable block, one side of the movable block corresponding to the fixed contact is provided with a movable contact, one side of the movable block, which is close to the trigger, is provided with a collision rod which can be in collision fit with the trigger, and the collision rod movably extends out of the cylindrical switch box.

Preferably, the fixed contact is arranged at one end of the inner cavity of the cylindrical switch box, which is close to the trigger, and the reset spring is arranged at one side of the movable block, which is far away from the fixed contact.

Preferably, the alarm transmitting means comprises a wireless communication module capable of transmitting a wireless signal to the terminal.

Preferably, a solar module for supplying power to the connection circuit is also included.

The beneficial effects are that:

1. can be when the drop-out fuse is switching off, make trigger switch lose the effect of trigger through the removal of drop-out fuse fusion tube, and then make connecting circuit be in the state of passageway to make alarm emitter work, consequently can make the staff in time learn the trouble of where, and realized real-time supervision's function.

Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic illustration of the present utility model in use;

FIG. 2 is another schematic illustration of the present utility model in use;

FIG. 3 is a schematic diagram of a connection circuit in the present utility model;

FIG. 4 is a schematic diagram of the trigger switch of the present utility model;

fig. 5 is a schematic diagram of another configuration of the trigger switch of the present utility model.

The reference numerals are explained as follows:

1. an alarm transmitting device; 2. triggering a switch; 21. a cylindrical switch box; 22. a fixed contact; 23. a movable contact; 24. a return spring; 25. a movable block; 26. a polish rod; 27. a touch-up rod; 3. a trigger.

Description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

In a first embodiment, as shown in fig. 1-5, a monitoring device for a drop-out fuse includes a connection circuit, and further includes an alarm emitting device 1 capable of emitting an alarm signal, a trigger switch 2, and a trigger 3 acting on the trigger switch 2 to cause the connection circuit to be in open circuit, where the alarm emitting device 1 is correspondingly connected with the trigger switch 2 through the connection circuit, and the trigger switch 2 and the trigger 3 are installed between a drop-out fuse base and a drop-out fuse fusion tube in an opposite manner.

According to the requirement, the connecting circuit is powered by solar energy, and specifically, a power supply in the connecting circuit is a lithium battery or other rechargeable batteries, and the batteries are correspondingly connected with the solar power generation assembly.

In this embodiment, when the trigger 3 acts on the trigger switch 2, the connection circuit is in an open state, and when the trigger switch 2 loses the trigger 3, the connection circuit is in a closed state.

Further, as shown in fig. 4, the trigger switch 2 includes a cylindrical switch box 21, one end of the cylindrical switch box 21 faces the trigger 3, one end of an inner cavity of the cylindrical switch box 21 is provided with a fixed contact 22, and the inner cavity of the cylindrical switch box 21 is also provided with a movable contact 23 which can move along the length direction of the cylindrical switch box 21 under the action of the trigger 3 and is not contacted with the fixed contact 22;

further, as shown in fig. 4, the inner cavity of the cylindrical switch box 21 is further provided with a reset spring 24 capable of driving the movable contact 23 to move when the movable contact 23 loses the action of the trigger 3, so that the movable contact 23 is reset, that is, when the movable contact 23 loses the action of the trigger 3, the reset spring 24 drives the movable contact 23 to move, so that the movable contact 23 is in contact with the fixed contact 22, and the connecting circuit is in a state of being in a path;

further, as shown in fig. 4, an iron movable block 25 is disposed in the inner cavity of the cylindrical switch box 21, and a movable contact 23 is disposed on one side of the movable block 25 corresponding to the fixed contact 22, and the trigger 3 is capable of driving the movable block 25 to move, so that the movable contact 23 does not contact with the permanent magnet of the fixed contact 22.

Specifically, as shown in fig. 4, the fixed contact 22 is disposed at one end of the inner cavity of the cylindrical switch case 21 away from the trigger 3, and the return spring 24 is disposed at one side of the movable block 25 away from the fixed contact 22.

When the trigger switch 2 is installed on a drop-out fuse base or a drop-out fuse fusion tube, the trigger 3 is installed on the drop-out fuse fusion tube or the drop-out fuse base, preferably, the trigger switch 2 is installed on the drop-out fuse base, and the trigger 3 is installed on the drop-out fuse fusion tube; when the drop-out fuse is in a closing state, the trigger 3 adsorbs the iron movable block 25, so that the iron movable block 25 drives the movable contact 23 to move, the movable contact 23 is far away from the fixed contact 22, and at the moment, the movable contact 23 is not contacted with the fixed contact 22, so that the connecting circuit is in an open circuit state, and the alarm transmitting device 1 does not work; when the drop-out fuse is in the open state, the drop-out fuse melting tube drives the trigger 3 to move, so that the iron movable block 25 loses the action of the trigger 3, at the moment, the movable block 25 resets under the action of the reset spring 24, so that the movable contact 23 approaches to and contacts the fixed contact 22, at the moment, the connecting circuit is in the state of a passage, the alarm emitting device 1 works, and at the moment, a worker can know that the drop-out fuse is in the open state, and then can know faults of the position in time.

In the second embodiment, as shown in fig. 4, a polish rod 26 is disposed in the inner cavity of the cylindrical switch box 21 along the length direction, and the movable block 25 and the return spring 24 are both sleeved on the rod body of the polish rod 26 in a matching manner.

This guides the movable block 25 so that the movable block 25 moves smoothly and the movable contact 23 is ensured not to be deviated.

The third embodiment is different from the first embodiment in that, as shown in fig. 5, a movable block 25 is disposed in the inner cavity of the cylindrical switch box 21, a movable contact 23 is disposed on a side of the movable block 25 corresponding to the fixed contact 22, a contact supporting rod 27 capable of being in contact with the trigger 3 is disposed on a side of the movable block 25 close to the trigger 3, and the contact supporting rod 27 movably extends out of the cylindrical switch box 21.

The fixed contact 22 is arranged at one end of the inner cavity of the cylindrical switch box 21, which is close to the trigger 3, and the return spring 24 is arranged at one side of the movable block 25, which is far away from the fixed contact 22.

Specifically, when the drop-out fuse is in a closing state, the trigger 3 extrudes the contact supporting rod 27, so as to drive the movable block 25 to move, and the movable block 25 drives the movable contact 23 to move, so that the movable contact 23 is far away from the fixed contact 22, and at the moment, the movable contact 23 is not contacted with the fixed contact 22, so that the connection circuit is in a broken state, and the alarm transmitting device 1 does not work; when the drop-out fuse is in the open state, the drop-out fuse melting tube drives the trigger 3 to move, the trigger 3 is far away from the contact supporting rod 27, the movable block 25 resets under the action of the reset spring 24 at the moment, the movable contact 23 is close to and contacts the fixed contact 22, the connecting circuit is in the state of a passage at the moment, the alarm transmitting device 1 works, and a worker can know that the drop-out fuse is in the open state at the moment, so that the worker can know faults of the position in time.

The outer end of the abutment bar 27 is provided with a flexible structure as required.

In the fourth embodiment, as shown in fig. 3, the alarm transmitting device 1 includes a wireless communication module capable of transmitting a wireless signal to a terminal;

the alarm transmitting device 1 further comprises an acousto-optic generator according to the need, and a positioning device such as a GPS (global positioning system) locator is arranged in the alarm transmitting device 1 according to the need.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a monitoring devices for drop-out fuse, includes connecting circuit, its characterized in that still includes alarm emitter (1) that can send alarm signal, trigger switch (2) and acts on trigger switch (2) and make connecting circuit be in trigger (3) that open circuit, alarm emitter (1) pass through connecting circuit corresponds with trigger switch (2) and is connected, trigger switch (2) with trigger (3) are relative installs between drop-out fuse base and drop-out fuse fusion tube.

2. The monitoring device for a drop-out fuse according to claim 1, wherein: the trigger switch (2) comprises a cylindrical switch box (21), one end of the cylindrical switch box (21) faces towards the trigger (3), one end of an inner cavity of the cylindrical switch box (21) is provided with a fixed contact (22), and the inner cavity of the cylindrical switch box (21) is also provided with a movable contact (23) which can move along the length direction of the cylindrical switch box (21) under the action of the trigger (3) and is not contacted with the fixed contact (22).

3. The monitoring device for a drop-out fuse according to claim 2, wherein: the inner cavity of the cylindrical switch box (21) is also provided with a reset spring (24) which can drive the movable contact (23) to move when the movable contact (23) loses the action of the trigger (3) so that the movable contact (23) is contacted with the fixed contact (22).

4. A monitoring device for a drop-out fuse as defined in claim 3, wherein: the inner cavity of the cylindrical switch box (21) is provided with an iron movable block (25), one side of the movable block (25) corresponding to the fixed contact (22) is provided with a movable contact (23), and the trigger (3) can drive the movable block (25) to move so that the movable contact (23) is not contacted with a permanent magnet of the fixed contact (22).

5. The monitoring device for a drop-out fuse according to claim 4, wherein: the fixed contact (22) is arranged at one end of the inner cavity of the cylindrical switch box (21) far away from the trigger (3), and the reset spring (24) is arranged at one side of the movable block (25) far away from the fixed contact (22).

6. The monitoring device for a drop-out fuse according to claim 4 or 5, wherein: the inner cavity of the cylindrical switch box (21) is provided with a polish rod (26) along the length direction of the inner cavity, and the movable block (25) and the return spring (24) are matched and sleeved on the rod body of the polish rod (26).

7. A monitoring device for a drop-out fuse as defined in claim 3, wherein: the inner cavity of the cylindrical switch box (21) is provided with a movable block (25), one side of the movable block (25) corresponding to the fixed contact (22) is provided with a movable contact (23), one side of the movable block (25) close to the trigger (3) is provided with a contact supporting rod (27) which can be in interference fit with the trigger (3), and the contact supporting rod (27) movably extends out of the cylindrical switch box (21).

8. The monitoring device for a drop-out fuse according to claim 7, wherein: the fixed contact (22) is arranged at one end of the inner cavity of the cylindrical switch box (21) close to the trigger (3), and the return spring (24) is arranged at one side of the movable block (25) far away from the fixed contact (22).

9. The monitoring device for a drop-out fuse according to claim 4 or 7, wherein: the alarm transmitting device (1) comprises a wireless communication module capable of transmitting wireless signals to a terminal.

10. The monitoring device for a drop-out fuse according to claim 1, wherein: a solar module for supplying power to the connection circuit is also included.