CN215834335U - Drop-type lightning arrester with position - Google Patents

Abstract

The utility model discloses a drop-out lightning arrester with a position, which comprises a frame body, wherein a mounting seat is arranged on the frame body, a lightning arrester is arranged at the upper end of the mounting seat, the lightning arrester comprises a lightning protection structure and a grounding column, a core column is arranged in the grounding column, a fuse is arranged at the lower end of the lightning protection structure, the lower end of the fuse is connected with the core column, an external connection line is arranged on the side wall of the grounding column, a sliding contact is arranged on the inner wall of the grounding column, a sliding groove corresponding to the sliding contact is formed in the core column, the external connection line is communicated with the core column through the sliding contact, an alarm device is arranged on the frame body, a trigger switch for controlling the alarm device to start and stop is arranged on the mounting seat, the trigger switch corresponds to the lower end of the core column, and when the fuse is fused, the core column falls freely to impact the trigger switch. The problem that the drop-out arrester is limited by the opening and closing distance of the drop-out mechanism of the drop-out fuse and is not easy to break under special environment is expected to be improved.

Description

Drop-type lightning arrester with position

Technical Field

The utility model relates to a power grid construction tool, in particular to a drop-out lightning arrester with a position.

Background

The lightning arrester is an electric appliance which is mainly used for protecting electrical equipment from being damaged by high transient overvoltage, limiting follow current time and normally limiting follow current amplitude; the lightning arrester is diversified in installation and application modes, and for power grid configuration, the lightning arrester mainly isolates working voltage so as to guide distribution network line adjustment. In the actual application process, local current may exceed the isolation voltage range of the lightning arrester, so that the lightning arrester is required to block the supply of the voltage, and a line is drained to other corresponding distribution networks.

The existing arrester generally uses a drop-out arrester for convenient operation, and the distribution type zinc oxide arrester is skillfully installed on a drop-out mechanism of a drop-out fuse after being modified, so that the current is prevented from being continuously transmitted by blocking the fuse when the voltage is overloaded. Meanwhile, in the routine maintenance process, the lightning arrester can be conveniently detected, maintained and replaced by means of the insulating brake-pulling operating rod under the condition of no power failure.

Although the drop-out arrester is simple and convenient to use, the drop-out arrester is limited by the opening and closing distance of the drop-out mechanism of the drop-out fuse, so that the drop-out arrester is not easy to break, and even part of the drop-out arrester cannot be built due to the influence of external environmental factors. It is worth studying how to improve drop-out arresters.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drop-out arrester with a position, aiming at solving the problem that the drop-out arrester is limited by the opening and closing distance of a drop-out mechanism of a drop-out fuse and is not easy to break under special environment.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a take position drop-out arrester, comprising a frame body, be equipped with the mount pad on the above-mentioned support body, above-mentioned mount pad upper end is equipped with the arrester, above-mentioned arrester includes lightning-arrest structure and ground post, the inside stem that is equipped with of above-mentioned ground post, above-mentioned lightning-arrest structure lower extreme is equipped with the fuse, the stem is connected to above-mentioned fuse lower extreme, above-mentioned ground post lateral wall is equipped with the external connection, above-mentioned ground post inner wall is equipped with the sliding contact, be equipped with the spout that corresponds with the sliding contact on the above-mentioned stem, above-mentioned external connection switches on with the stem through the sliding contact, be equipped with alarm device on the above-mentioned support body, be equipped with the trigger switch that control alarm device opened and shut down on the above-mentioned mount pad, above-mentioned trigger switch is corresponding with the stem lower extreme, when being fused by the fuse, above-mentioned stem free whereabouts striking trigger switch.

Preferably, the alarm device comprises a direct current power supply and an alarm, the direct current power supply is connected with the alarm in series through a trigger switch, and the alarm sends out a warning signal.

Preferably, the frame body is provided with a manual switch, the external line is connected with external equipment through the manual switch, the manual switch is provided with an operating rod, the closing of the manual switch is controlled by the operating rod, and the end part of the operating rod is provided with a hanging ring.

Preferably, the trigger switch includes a carrier, a functional groove is formed in the carrier, two connecting terminals are arranged at the bottom of the functional groove, a gap is formed between the two connecting terminals, a guide pillar is arranged in the functional groove, a striking plate is arranged at the upper end of the guide pillar, a guide plate corresponding to the connecting terminal is arranged at the lower end of the guide pillar, and the guide pillar drives the guide plate to contact the two connecting terminals.

The further technical scheme is that a return spring is sleeved on the guide post, two ends of the return spring respectively abut against the lower end of the impact plate and the upper end of the carrier, and the position of the impact plate corresponds to that of the core column.

The further technical scheme is that a limiting ring is arranged on the core column, and a load is arranged at the lower end of the core column and contacts the impact plate through the load.

Preferably, the lightning arrester has a first terminal at an upper end thereof, an insulator at an upper end thereof, a separator provided on a side wall of the first terminal, the separator being connected to the first terminal by a wire, a second terminal connected to the power grid at an upper end of the insulator, and a lead conductor corresponding to the separator provided on one side of the second terminal, the lead conductor being hung on the lead conductor by the separator.

The technical scheme is that the support body is provided with a ceramic column, the ceramic column is provided with a support frame, and the support frame is in contact with the outer wall of the insulator.

Compared with the prior art, the utility model has the beneficial effects of at least one of the following:

the lightning arrester is fixed through the mounting seat, two functional areas are formed by the lightning protection structure and the grounding column of the lightning arrester, the core column can rapidly block the communication state of the core column and the lightning protection structure when the current and voltage of the core column exceed the load of the lightning arrester through the matching of the core column and the fuse, the core column and the sliding contact adopt a sliding contact mode, so that the sliding contact cannot be influenced in the free falling process of the core column, the core column contacts the trigger switch in the falling process, and the alarm device is started by the trigger switch.

According to the alarm, the direct-current power supply, the trigger switch and the alarm are connected in parallel, when the trigger switch is switched on, the direct-current power supply supplies power to the alarm, and therefore the alarm outputs a warning signal to prompt a worker.

The manual switch can control the circulation state of the external wires, and the manual switch can be directly used for disconnecting the circuit connection of the grounding wires in the process of maintenance, so that the maintenance is easy; through the form of action bars and link, make the staff can remote operation through insulating action bars, guarantee the security of product use.

The trigger switch of the utility model drives the guide post to move downwards by contacting the core plate through the impact plate, and contacts the connecting terminal through the guide plate at the lower end of the guide post, so that the two connecting terminals in the carrier are mutually conducted. After the core rod is separated from the impact plate through the reset spring, the guide post can be driven to move upwards, and therefore the conduction between the two connecting terminals is disconnected.

The utility model restrains the moving distance of the core column through the limiting ring, and ensures the stability of the core rod in the falling process through load, so that the core rod has enough pressing and tensioning of the pressure type return spring.

The lightning arrester can be powered off for maintenance through the disconnector and the insulator, and the disconnector can be suspended and communicated with the second terminal through the lead conductor.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic structural diagram of the trigger switch of the present invention.

Fig. 3 is a schematic view of the installation position of the lightning arrester according to the utility model.

Description of reference numerals:

1-frame body, 2-mounting seat, 3-lightning arrester, 4-core column, 5-alarm device, 6-trigger switch, 7-manual switch, 8-first terminal, 9-disconnector, 101-ceramic column, 102-supporting frame, 301-lightning protection structure, 302-grounding column, 303-fuse, 304-external line and 305-sliding contact, 401-limit ring, 402-load, 501-direct current power supply, 502-alarm, 601-carrier, 602-functional groove, 603-connecting terminal, 604-guide column, 605-impact plate, 606-guide plate, 607-reset spring, 701-operating rod, 702-hanging ring, 801-insulator, 802-second terminal and 803-lead conductor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1, an embodiment of the utility model is a drop-out arrester with position, which includes a frame body 1, wherein the frame body 1 is an existing installation frame body, an installation base 2 is arranged on the frame body 1, the installation base 2 is made of ceramic, an arrester 3 is arranged at an upper end of the installation base 2, the arrester 3 includes an arrester structure 301 and a ground post 302, the arrester structure is an existing arrester body, the ground post 302 is made of ceramic, an upper end of the ground post 302 is bonded with the ceramic outside the arrester structure 301, the ground post 302 is hollow, a core column 4 is arranged inside the ground post 302, an outer contour of the core column 4 is matched with an inner contour of the ground post 302, and specifically, the ground post core column 302 is in clearance fit with the core column. Above-mentioned lightning-arrest structure 301 lower extreme is equipped with fuse 303, because different functional element need be connected at fuse 303 both ends, stem 4 is connected to above-mentioned fuse 303 lower extreme, and wherein fuse 303 is current commodity, and its fuse 303 divide into two connecting portion, need guarantee that fuse 303 breaks off at fusing in-process to make stem 4 drop from ground connection post 302.

The side wall of the grounding pole 302 is provided with an external wire 304, the external wire 304 outputs a voltage-limiting current, the inner wall of the grounding pole 302 is provided with a sliding contact 305, wherein the sliding contact 305 is fixed on the inner wall of the wiring pole 302, the sliding contact 305 is mutually conducted with the external wire 304, the stem column 4 is provided with a sliding groove corresponding to the sliding contact 305, the external wire 304 is conducted with the stem column 4 through the sliding contact 305, when the device works normally, the upper end of the stem column 4 is conducted with the lightning protection structure 301, the voltage-limiting current is output through the lightning protection structure 301, and the stem column 4 outputs a current to the external wire 304 through the sliding contact 305. When the stem 4 slips from the grounding stem 302, the connection between the stem 4 and the lightning protection structure 301 is disconnected, so that the current output to the external connection 304 is notified, and the power-off effect is achieved.

In order to prompt the staff to notice in the power-off process caused by the excess voltage, the frame body 1 is provided with the alarm device 5, wherein the alarm device 5 can be an existing device, for example, the alarm device 5 can be an existing networking alarm system, and can also be an acousto-optic warning device, and the alarm device 5 is in a stop state in a normal state.

Be equipped with the trigger switch 6 that control alarm device 5 opened and stops on above-mentioned mount pad 2, above-mentioned trigger switch 6 is corresponding with 4 lower extremes of stem to guarantee that 4 whereabouts in-process of stem can stable contact trigger switch 6, open through trigger switch 6 control alarm device 5 and stop, when being fused by fuse 303, above-mentioned stem 4 free fall striking trigger switch 6, trigger switch 6 is triggered this moment, thereby control alarm device 5 and start.

Based on the above embodiment, another embodiment of the present invention is that the alarm device 5 includes a dc power supply 501 and an alarm 502, where the dc power supply 501 is an existing power supply device, such as a storage battery, and the dc power supply 501 may also be a voltage regulator connected to a 220V municipal power supply, and it should be noted that if the dc power supply 501 is a voltage regulator. The alarm 502 may be an existing wireless alarm, and is encoded by the corresponding alarm 502, so that the worker can identify the alarm area; the direct current power supply 501 is connected with the alarm 502 in series through the trigger switch 6, and the alarm 502 sends out a warning signal; when the trigger switch 6 is closed, the dc power supply 501 is connected to the alarm 502, and the alarm 502 can directly send out a warning signal.

Based on the above embodiment, in order to deal with the risk of equipment failure and possibly require manual operation in a necessary state, another embodiment of the present invention is that the frame body 1 is provided with a manual switch 7, wherein the manual switch 7 is made of an insulating material as a whole, the external line 304 is connected to external equipment through the manual switch 7, and a worker controls the conduction of the external line 304 through the manual switch 7.

The manual switch 7 is provided with an operating lever 701, the closing of the manual switch 7 is controlled by the operating lever 701, and a hanging ring 702 is provided at an end of the operating lever 701. Because the manual switch 7 does not suggest a human hand to touch directly due to the use environment of the device, the operating distance is increased by the operating rod 701, and a worker can remotely operate the manual switch 7 by arranging the hanging ring 702 and insulating the operating rod when using the device at a far end.

Based on the above embodiment, referring to fig. 2, another embodiment of the present invention is that the trigger switch 6 includes a carrier 601, where the carrier 601 is made of a poly carbon material, the carrier 601 has an insulating property, and is easy to machine and form by using poly carbon, a functional groove 602 is disposed in the carrier 601, where the functional groove 602 is a groove on the carrier 601, two connection terminals 603 are disposed at the bottom of the functional groove 602, and a gap is formed between the connection terminals 603, where the two connection terminals 603 are respectively connected to the alarm 502 and the dc power supply 501, so as to form a series connection effect.

The connecting terminals 603 are conventional metal sheets, and the trigger switch 6 is normally in an off state due to gaps between the connecting terminals 603; the functional groove 602 is provided with a guide post 604, the guide post 604 is also made of carbon, the guide post 604 can move up and down in the functional groove 602, the guide post 604 and the functional groove 602 are in clearance fit, the upper end of the guide post 604 is provided with a striking plate 605, the striking force is transmitted to the guide post 604 through the striking plate 605, the guide post 604 moves down in the functional groove 602, the lower end of the guide post 604 is provided with a guide plate 606 corresponding to the connecting terminal 603, and the guide plate 606 is driven by the guide post 604 to contact with the two connecting terminals 603. When the guide post 604 moves down in the functional groove 602, the guide post 604 drives the guide plate 606 to approach the connecting terminals 603 until the guide plate 6 contacts the two connecting terminals 603, so that the two connecting terminals 603 are communicated.

Furthermore, a return spring 607 is sleeved on the guide post 604, two ends of the return spring 607 respectively abut against the lower end of the impact plate 605 and the upper end of the carrier 601, and the position of the impact plate 605 corresponds to the position of the core column 4. With the return spring 607 in tension after the guide post 604 moves down, when the stem 4 leaves the striking plate 605, the guide post 604 can move up and return under the action of the return spring 607, so that the two connection terminals 603 are disconnected.

Furthermore, in order to restrain the stem 4 and prevent the stem 4 from coming off the grounding post 302, the above-mentioned stem 4 is provided with the limiting ring 401, and the stem 4 is prevented from coming off the grounding post 302 by the limiting ring 401, it should be noted that the limiting ring 401 and the grounding post 302 are matched with each other, so that the limiting ring 401 can restrain the moving distance of the stem 4. The weight 402 is provided at the lower end of the stem 4, and the weight 402 contacts the striking plate 605, so that the gravitational potential energy of the stem 4 is ensured by the weight 402, and the return spring 607 is ensured to be contracted during the free fall of the stem 4. Wherein the form of the weight 402 is varied:

for example, a hollow portion is provided at the bottom of the stem 4, and the weight 402 is formed by sand filled in the hollow portion.

For example, a metal material having a large mass is provided at the bottom of the stem 4, and the load 402 is made of the metal material.

Based on the above embodiment, referring to fig. 3, another embodiment of the present invention is that a first terminal 8 is provided at the upper end of the lightning arrester 3, an insulator 801 is provided at the upper end of the first terminal 8, a separator 9 is provided on the sidewall of the first terminal 8, the separator 9 is connected to the first terminal 8 by a wire, a second terminal 802 connected to a power grid is provided at the upper end of the insulator 801, a lead conductor 803 corresponding to the separator 9 is provided on the side of the second terminal 802, and the separator 9 is hung on the lead conductor 803.

The disconnector 9 is an existing product, the disconnector 9 is connected to the first terminal 8 by an existing cable, and when the disconnector 9 is hung on the lead conductor 803, the first terminal 8 and the second terminal 802 are electrically connected.

When the disconnector 9 is removed from the lead conductor 803, the first terminal 8 and the second terminal 802 are connected by the insulator 801, and the insulator 801 blocks the flow of current, thereby electrically disconnecting the first terminal 8 and the second terminal 802.

Further, a ceramic column 101 is provided on the frame body 1, a support frame 102 is provided on the ceramic column 101, and the support frame 102 contacts the outer wall of the insulator 801. Electric transmission between the frame body 1 and the support frame 101 is avoided through the ceramic posts, and the support frame 102 ensures that the insulator 801 has certain stability after being installed.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the utility model to effect such feature, structure, or characteristic in connection with other embodiments.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (8)

1. The utility model provides a take position drop-out arrester, includes support body (1), its characterized in that: the lightning arrester is characterized in that a mounting seat (2) is arranged on the frame body (1), a lightning arrester (3) is arranged at the upper end of the mounting seat (2), the lightning arrester (3) comprises a lightning protection structure (301) and a grounding column (302), a core column (4) is arranged inside the grounding column (302), a fuse (303) is arranged at the lower end of the lightning protection structure (301), the lower end of the fuse (303) is connected with the core column (4), an outer connecting wire (304) is arranged on the side wall of the grounding column (302), a sliding contact (305) is arranged on the inner wall of the grounding column (302), a sliding groove corresponding to the sliding contact (305) is arranged on the core column (4), the outer connecting wire (304) is communicated with the core column (4) through the sliding contact (305), an alarm device (5) is arranged on the frame body (1), a trigger switch (6) for controlling the alarm device (5) to be started and stopped is arranged on the mounting seat (2), and the trigger switch (6) corresponds to the lower end of the core column (4), when the fuse (303) is fused, the stem (4) falls freely to strike the trigger switch (6).

2. The drop-out arrester with position according to claim 1, characterized in that: the alarm device (5) comprises a direct current power supply (501) and an alarm (502), wherein the direct current power supply (501) is connected with the alarm (502) in series through a trigger switch (6), and the alarm (502) sends out an alarm signal.

3. The drop-out arrester with position according to claim 1, characterized in that: be equipped with on support body (1) hand switch (7), external connection (304) connect external equipment through hand switch (7), be equipped with action bars (701) on hand switch (7), by the closure of action bars (701) control hand switch (7), action bars (701) tip is equipped with link (702).

4. The drop-out arrester with position according to claim 1, characterized in that: the trigger switch (6) comprises a carrier (601), a functional groove (602) is arranged in the carrier (601), two connecting terminals (603) are arranged at the bottom of the functional groove (602), a gap is reserved between the connecting terminals (603), a guide pillar (604) is arranged in the functional groove (602), an impact plate (605) is arranged at the upper end of the guide pillar (604), a guide plate (606) corresponding to the connecting terminals (603) is arranged at the lower end of the guide pillar (604), and the guide plate (606) is driven by the guide pillar (604) to contact the two connecting terminals (603).

5. The drop-out arrester of claim 4, wherein: a return spring (607) is sleeved on the guide post (604), two ends of the return spring (607) respectively abut against the lower end of the impact plate (605) and the upper end of the carrier (601), and the position of the impact plate (605) corresponds to the core column (4).

6. The drop-out arrester of claim 5, wherein: the limiting ring (401) is arranged on the core column (4), a load (402) is arranged at the lower end of the core column (4), and the load (402) is in contact with the impact plate (605).

7. The drop-out arrester with position according to claim 1, characterized in that: arrester (3) upper end is equipped with first terminal (8), first terminal (8) upper end is equipped with insulator (801), first terminal (8) lateral wall is equipped with disconnector (9), and disconnector (9) pass through the wire with first terminal (8) and are connected, insulator (801) upper end is equipped with second terminal (802) that insert the electric wire netting, second terminal (802) one side is equipped with connects and draws conductor (803) with disconnector (9) correspondence, hangs by disconnector (9) and connects on leading conductor (803).

8. The drop-out arrester of claim 7, wherein: be equipped with ceramic post (101) on support body (1), be equipped with support frame (102) on ceramic post (101), support frame (102) contact insulator (801) outer wall.

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