CN215116717U

CN215116717U - Ground protection alarm device for low-voltage power supply system of power plant

Info

Publication number: CN215116717U
Application number: CN202121490249.7U
Authority: CN
Inventors: 林靖
Original assignee: Huaneng Fujian Energy Development Co Ltd Fuzhou Branch
Current assignee: Huaneng Fujian Energy Development Co Ltd Fuzhou Branch
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-12-10
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses a low pressure power supply system ground protection alarm device of power plant relates to alarm device technical field, including shell, bee calling organ and constant head tank, fault detection device is installed to the inner wall of shell, the memory is installed to fault detection device's top, the singlechip is installed to one side of memory, wireless transmitter is installed to the opposite side of memory, the switch is installed to one side inner wall of shell, bee calling organ is installed to the top of memory. The utility model discloses utilize rotatory thread bush, screw-thread fit makes the thread bush move to one side, then presses the briquetting in the inboard of thread bush, and the briquetting is pushed the back, makes the depression bar drive the fixture block and removes to lock in the arch, the problem of inconvenient connection has been solved to the quick connect of the earth cable of being convenient for and connecting cable.

Description

Ground protection alarm device for low-voltage power supply system of power plant

Technical Field

The utility model relates to an alarm device technical field specifically is a low pressure power supply system ground protection alarm device of power plant.

Background

The basic principle of ground protection is to limit the leakage current of the leakage equipment to the ground so that the leakage current does not exceed a certain safety range, once a certain setting value is exceeded, the protector can automatically cut off a power supply, a buzzer is used for sounding to remind a worker, and data information is transmitted and stored.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low pressure power supply system ground protection alarm device of power plant to it does not have the problem of high-speed joint to propose current low pressure power supply system ground protection alarm device of power plant in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a ground protection alarm device of a low-voltage power supply system of a power plant comprises a shell, a buzzer and a positioning groove, wherein a fault detection device is installed on the inner wall of the shell, a storage device is installed above the fault detection device, a single chip microcomputer is installed on one side of the storage device, a wireless transmitter is installed on the other side of the storage device, a switch is installed on the inner wall of one side of the shell, the buzzer is installed above the storage device, a loudspeaker is installed above the buzzer, a cover body is movably hinged above the shell, a display screen is installed on the outer wall of the cover body, and fixing mechanisms are evenly installed on the outer walls of two sides of the shell;

the top end of the shell is provided with a positioning groove, the bottom end of one side of the cover body is connected with a positioning rod matched with the positioning groove, and the inner wall of the shell at one side of the positioning rod is provided with a dismounting mechanism;

the connecting piece is all installed to the both sides of shell bottom, and the inboard of connecting piece installs earth cable and connecting cable respectively, connection structure is installed to the outer wall of connecting piece.

Preferably, the connecting structure comprises a threaded sleeve, the threaded sleeve is mounted on the outer wall of the connecting piece, and an external thread is arranged on the outer wall of the connecting piece.

Preferably, the pressing block is uniformly installed on the outer side of the connecting piece, one end of the pressing block is connected with the pressing rod, one end of the pressing rod is connected with the clamping block, the outer wall of one side of the pressing rod is provided with the reset spring, and the outer wall of the grounding cable is provided with the protrusion.

Preferably, fixed establishment includes mounting panel, mounting hole, spacing hole, fixed plate and gag lever post, the fixed plate evenly mounted is in the both sides outer wall of shell, the outer wall of fixed plate is provided with spacing hole, and the inboard in spacing hole installs the gag lever post, the one end of gag lever post is connected with the mounting panel, and the outer wall of mounting panel evenly is provided with the mounting hole.

Preferably, the disassembly mechanism comprises a screw rod, an installation block and an installation groove, the screw rod is installed on the inner wall of the shell on one side of the positioning rod, one end of the screw rod is in threaded connection with the installation groove, and the outer wall of the positioning rod is provided with the installation block matched with the installation groove.

Preferably, the outer wall of one side of the screw rod is provided with a first bevel gear, the upper side of one side of the first bevel gear is provided with a second bevel gear, and the top end of the second bevel gear is connected with a rotating rod.

Preferably, the inner wall of shell is provided with the spacing groove, the both sides outer wall of mounting groove passes through the stopper and is connected with the spacing groove.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model provides a grounding cable, the fault detection device, a memory, the thread bush, wireless transmitter, bee calling organ, arch and fixture block, utilize rotatory thread bush, through connecting grounding cable to the grounding pile, detect the trouble through the fault detection device, then the switch is automatic to be disconnected, through memory storage information, then transmit information data through wireless transmitter, call through bee calling organ and remind the warning, reach the purpose of warning in time, simultaneously through screw-thread fit, make the thread bush move to one side, then press the briquetting in the inboard of thread bush, after the briquetting is extruded, make the depression bar drive the fixture block and move, and lock on the arch, be convenient for the quick connection of grounding cable and connecting cable, the problem of inconvenient connection has been solved;

(2) the utility model provides a mounting groove and an installation block, a second bevel gear is rotated by utilizing a rotating rod, the second bevel gear is meshed with a first bevel gear, the second bevel gear drives the first bevel gear to rotate simultaneously, the first bevel gear drives a lead screw to rotate simultaneously, the screw thread is matched, the mounting groove is moved to one side, and the mounting groove is gradually far away from the inner side of the installation block, so that the cover body can be conveniently opened to overhaul and maintain the device, and the problem of inconvenient overhaul is solved;

(3) the utility model provides a have mounting hole and gag lever post, utilize to remove the gag lever post and slide in spacing downthehole, make the gag lever post drive the mounting panel outwards or inwards move simultaneously, adjust the position of mounting hole to adjust mounted position, be convenient for install at the assigned position, solved the problem of inconvenient installation.

Drawings

FIG. 1 is a schematic cross-sectional view of the device of the present invention;

FIG. 2 is a schematic view of the access cover of the present invention;

FIG. 3 is a schematic view of the fixing mechanism of the present invention;

FIG. 4 is a schematic view of the connection structure of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a connecting member; 2. connecting a cable; 3. a memory; 4. a ground cable; 5. a fault detection device; 6. a fixing mechanism; 601. mounting a plate; 602. mounting holes; 603. a limiting hole; 604. a fixing plate; 605. a limiting rod; 7. a housing; 8. a wireless transmitter; 9. a speaker; 10. a cover body; 11. a display screen; 12. a buzzer; 13. a switch; 14. a single chip microcomputer; 15. a threaded sleeve; 16. a return spring; 17. a pressure lever; 18. a clamping block; 19. a protrusion; 20. briquetting; 21. positioning a rod; 22. positioning a groove; 23. a disassembly mechanism; 2301. a screw rod; 2302. mounting blocks; 2303. mounting grooves; 24. a first bevel gear; 25. a second bevel gear; 26. and (4) rotating the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-5, a grounding protection alarm device for a low-voltage power supply system of a power plant comprises a shell 7, a buzzer 12 and a positioning groove 22, wherein a fault detection device 5 is installed on the inner wall of the shell 7, a memory 3 is installed above the fault detection device 5, a single chip microcomputer 14 is installed on one side of the memory 3, a wireless transmitter 8 is installed on the other side of the memory 3, a switch 13 is installed on the inner wall of one side of the shell 7, the buzzer 12 is installed above the memory 3, a loudspeaker 9 is installed above the buzzer 12, a cover body 10 is movably hinged above the shell 7, a display screen 11 is installed on the outer wall of the cover body 10, and fixing mechanisms 6 are evenly installed on the outer walls of two sides of the shell 7;

a positioning groove 22 is arranged at the top end of the shell 7, a positioning rod 21 matched with the positioning groove 22 is connected to the bottom end of one side of the cover body 10, and a dismounting mechanism 23 is arranged on the inner wall of the shell 7 at one side of the positioning rod 21;

the two sides of the bottom end of the shell 7 are respectively provided with a connecting piece 1, the inner side of each connecting piece 1 is respectively provided with a grounding cable 4 and a connecting cable 2, and the outer wall of each connecting piece 1 is provided with a connecting structure;

referring to fig. 1-5, the grounding protection alarm device for the low-voltage power supply system of the power plant further comprises a connecting structure, wherein the connecting structure comprises a threaded sleeve 15, the threaded sleeve 15 is installed on the outer wall of the connecting piece 1, and the outer wall of the connecting piece 1 is provided with external threads;

pressing blocks 20 are uniformly arranged on the outer side of the connecting piece 1, one ends of the pressing blocks 20 are connected with pressing rods 17, one ends of the pressing rods 17 are connected with clamping blocks 18, the outer wall of one side of each pressing rod 17 is provided with a return spring 16, and the outer wall of the grounding cable 4 is provided with a bulge 19;

specifically, as shown in fig. 1 and 4, when the structure is used, the threaded sleeve 15 is rotated and is in threaded fit, so that the threaded sleeve 15 moves to one side, the pressing block 20 is pressed on the inner side of the threaded sleeve 15, and after the pressing block 20 is pressed, the pressing rod 17 drives the clamping block 18 to move and clamp on the protrusion 19 for locking, so that the grounding cable 4 and the connecting cable 2 can be quickly connected.

Example 2: the fixing mechanism 6 comprises a mounting plate 601, mounting holes 602, limiting holes 603, a fixing plate 604 and limiting rods 605, the fixing plate 604 is uniformly mounted on the outer walls of the two sides of the shell 7, the outer wall of the fixing plate 604 is provided with the limiting holes 603, the limiting rods 605 are mounted on the inner sides of the limiting holes 603, one end of each limiting rod 605 is connected with the mounting plate 601, and the outer wall of the mounting plate 601 is uniformly provided with the mounting holes 602;

specifically, as shown in fig. 1 and 3, when the structure is used, the limiting rod 605 is moved to slide in the limiting hole 603, so that the limiting rod 605 drives the mounting plate 601 to move outwards or inwards at the same time, and the position of the mounting hole 602 is adjusted, so that the mounting position is adjusted, and the mounting at a specific position is facilitated.

Example 3: the dismounting mechanism 23 comprises a screw rod 2301, an installation block 2302 and a mounting groove 2303, the screw rod 2301 is installed on the inner wall of the shell 7 on one side of the positioning rod 21, one end of the screw rod 2301 is in threaded connection with the mounting groove 2303, and the outer wall of the positioning rod 21 is provided with the installation block 2302 matched with the mounting groove 2303;

a first bevel gear 24 is arranged on the outer wall of one side of the screw rod 2301, a second bevel gear 25 is arranged above one side of the first bevel gear 24, and the top end of the second bevel gear 25 is connected with a rotating rod 26;

the inner wall of the shell 7 is provided with a limiting groove, and the outer walls of the two sides of the mounting groove 2303 are connected with the limiting groove through limiting blocks;

specifically, as shown in fig. 1, 2 and 5, when the structure is used, the second bevel gear 25 is rotated by rotating the rotating rod 26, the second bevel gear 25 is engaged with the first bevel gear 24, the second bevel gear 25 drives the first bevel gear 24 to rotate simultaneously, the first bevel gear 24 drives the screw rod 2301 to rotate simultaneously, the mounting groove 2303 is moved to one side through threaded fit, the mounting groove 2303 is gradually far away from the inner side of the mounting block 2302, and the cover body 10 is conveniently opened to overhaul and maintain the device.

The working principle is as follows: when the device is used, firstly, the grounding cable 4 is connected with the grounding pile, the fault is detected by the fault detection device 5, then the switch 13 is automatically switched off, the information is stored by the memory 3, then the information data is transmitted by the wireless transmitter 8, and the buzzer 12 is used for buzzing to remind alarm;

the first innovation point implementation step:

by hanging the housing 7 on a wall, the limiting rod 605 is moved to slide in the limiting hole 603, so that the limiting rod 605 drives the mounting plate 601 to move outwards or inwards at the same time, the position of the mounting hole 602 is adjusted, the mounting position is adjusted, and the mounting at a specified position is facilitated.

The implementation step of the second innovation point:

the first step is as follows: by rotating the threaded sleeve 15, the internal thread of the threaded sleeve 15 is matched with the external thread of the outer wall of the connecting piece 1, so that the threaded sleeve 15 moves to one side;

the second step is that: then the pressing block 20 is pressed on the inner side of the threaded sleeve 15, and after the pressing block 20 is extruded, the pressing rod 17 drives the clamping block 18 to move and is clamped on the protrusion 19 for locking, so that the grounding cable 4 and the connecting cable 2 can be quickly connected.

The third innovation point implementation step:

the first step is as follows: the second bevel gear 25 is rotated by rotating the rotating rod 26, the second bevel gear 25 is meshed with the first bevel gear 24, and the second bevel gear 25 drives the first bevel gear 24 to rotate simultaneously;

the second step is that: rotate through first umbrella tooth 24 and drive lead screw 2301 rotatory simultaneously, screw-thread fit makes mounting groove 2303 remove to one side of first umbrella tooth 24, and mounting groove 2303 breaks away from the inboard of installation piece 2302 gradually, then upwards stimulates lid 10, makes locating lever 21 take out from constant head tank 22, is convenient for open lid 10 and overhauls and maintain.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low voltage power supply system ground protection alarm device of power plant, includes shell (7), bee calling organ (12) and constant head tank (22), its characterized in that: a fault detection device (5) is installed on the inner wall of the shell (7), a memory (3) is installed above the fault detection device (5), a single chip microcomputer (14) is installed on one side of the memory (3), a wireless transmitter (8) is installed on the other side of the memory (3), a switch (13) is installed on the inner wall of one side of the shell (7), a buzzer (12) is installed above the memory (3), a loudspeaker (9) is installed above the buzzer (12), a cover body (10) is movably hinged above the shell (7), a display screen (11) is installed on the outer wall of the cover body (10), and fixing mechanisms (6) are evenly installed on the outer walls of the two sides of the shell (7);

a positioning groove (22) is formed in the top end of the shell (7), a positioning rod (21) matched with the positioning groove (22) is connected to the bottom end of one side of the cover body (10), and a dismounting mechanism (23) is installed on the inner wall of the shell (7) on one side of the positioning rod (21);

connecting piece (1) are all installed to the both sides of shell (7) bottom, and earthing cable (4) and connecting cable (2) are installed respectively to the inboard of connecting piece (1), connection structure is installed to the outer wall of connecting piece (1).

2. A power plant low voltage power supply system ground protection alarm device according to claim 1, characterized in that: the connecting structure comprises a threaded sleeve (15), the threaded sleeve (15) is installed on the outer wall of the connecting piece (1), and external threads are arranged on the outer wall of the connecting piece (1).

3. A power plant low voltage power supply system ground protection alarm device according to claim 1, characterized in that: briquetting (20) are evenly installed in the outside of connecting piece (1), and the one end of briquetting (20) all is connected with depression bar (17), the one end of depression bar (17) all is connected with fixture block (18), reset spring (16) are all installed to the outer wall of depression bar (17) one side, the outer wall of ground cable (4) is provided with arch (19).

4. A power plant low voltage power supply system ground protection alarm device according to claim 1, characterized in that: fixing mechanism (6) are including mounting panel (601), mounting hole (602), spacing hole (603), fixed plate (604) and gag lever post (605), fixed plate (604) evenly mounted is in the both sides outer wall of shell (7), the outer wall of fixed plate (604) is provided with spacing hole (603), and the inboard of spacing hole (603) installs gag lever post (605), the one end of gag lever post (605) is connected with mounting panel (601), and the outer wall of mounting panel (601) evenly is provided with mounting hole (602).

5. A power plant low voltage power supply system ground protection alarm device according to claim 1, characterized in that: the disassembly mechanism (23) comprises a screw rod (2301), an installation block (2302) and an installation groove (2303), the screw rod (2301) is installed on the inner wall of the shell (7) on one side of the positioning rod (21), one end of the screw rod (2301) is in threaded connection with the installation groove (2303), and the outer wall of the positioning rod (21) is provided with the installation block (2302) matched with the installation groove (2303).

6. A power plant low voltage power supply system ground protection alarm device according to claim 5, characterized in that: first bevel gear (24) are installed to the outer wall of lead screw (2301) one side, second bevel gear (25) are installed to the top of first bevel gear (24) one side, and the top of second bevel gear (25) is connected with bull stick (26).

7. A power plant low voltage power supply system ground protection alarm device according to claim 5, characterized in that: the inner wall of shell (7) is provided with the spacing groove, the both sides outer wall of mounting groove (2303) passes through the stopper and is connected with the spacing groove.