CN113267662A

CN113267662A - Three-phase ammeter capable of preventing damage caused by electricity stealing and self-checking method thereof

Info

Publication number: CN113267662A
Application number: CN202110478232.8A
Authority: CN
Inventors: 张凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-08-17

Abstract

The invention discloses a three-phase ammeter capable of preventing damage caused by electricity stealing and self-checking and a self-checking method thereof, wherein the three-phase ammeter comprises a casing with a front part and a rear part capable of being separated, a detection cavity is arranged in the casing, a motor shaft is rotatably arranged on the rear wall of the detection cavity, a resistance meter is fixedly arranged on a disc on the motor shaft, cameras embedded in the disc are symmetrically arranged at the upper and lower positions of the resistance meter, the disc extends out of the front side of the camera, a moving groove which is symmetrical with respect to the left and right positions of the resistance meter and has a forward opening is arranged in the disc, a threaded shaft is rotatably arranged on the outer wall of the moving groove, and a threaded block which is slidably arranged on the rear wall of the moving groove is in threaded connection with the threaded shaft; according to the invention, the part of the external electric wire is hidden, then when wiring is required, the wiring position is displayed by controlling lifting, then wiring is carried out, and an outsider can not modify a machine without authorization through automatic control, so that electricity stealing and personal injury are prevented.

Description

Three-phase ammeter capable of preventing damage caused by electricity stealing and self-checking method thereof

Technical Field

The invention relates to the technical field of three-phase ampere meters, in particular to a three-phase ampere meter capable of preventing damage caused by electricity stealing and performing self-inspection and a self-inspection method thereof.

Background

The three-phase ammeter is mainly applied to a control system, an energy management system, substation automation, distribution network automation, building automation, industrial automation, community power monitoring, intelligent buildings, a switch cabinet and the like, and is manufactured according to the action of a magnetic field force on an electrified conductor in a magnetic field. The inside permanent magnet that has of ampere meter produces the magnetic field at interelectrode, has a coil in the magnetic field, and the coil both ends respectively have a balance spring, and a terminal of ampere meter is respectively connected to the spring, is connected by a pivot between spring and coil, at the pivot for the front end of ampere meter, has a pointer, mostly shows at present for the LED, and traditional three-phase ampere meter exists following shortcoming:

1. the traditional three-phase ampere meter is inconvenient for self-checking and directly showing that a problem exists at the position, wastes time for detection when maintenance personnel maintain and is inconvenient for electricity metering;

2. the traditional three-phase ammeter is inconvenient to modify without permission for preventing non-maintenance personnel from disassembling, is easy to steal electricity, and is easy to cause personnel injury due to the steal electricity;

3. the traditional three-phase ammeter is inconvenient for self-protection and cannot automatically detect whether the artificial damage exists.

Disclosure of Invention

The invention aims to provide a three-phase ammeter for preventing damage caused by electricity stealing and self-checking and a self-checking method thereof, which are used for overcoming the defects in the prior art.

The invention discloses a three-phase ammeter capable of preventing damage caused by electricity stealing and self-checking, which comprises a casing capable of being separated from the front and the back, wherein a detection cavity is arranged in the casing, a motor shaft is rotatably arranged on the rear wall of the detection cavity, an ohmmeter is fixedly arranged on a disc on the motor shaft, cameras embedded in the disc are symmetrically arranged at the upper and lower positions of the ohmmeter, the front side of each camera extends out of the disc, a moving groove which is symmetrical with respect to the ohmmeter at the left and right positions and has a forward opening is arranged in the disc, a threaded shaft is rotatably arranged on the outer wall of the moving groove, a threaded block which is slidably arranged on the rear wall of the moving groove is in threaded connection with the threaded shaft, a micro hydraulic cylinder extending into the detection cavity is fixedly arranged on the front side of the threaded block, a metal rod is fixedly arranged on the front side of the micro hydraulic cylinder, and the metal rod is connected with the ohmmeter through a wire, fixed columns are symmetrically embedded in the left and right positions in the casing on the front side, an inductor embedded in the casing on the front side is arranged on the lower side of each fixed column, a threaded groove with a backward opening is formed in each fixed column, a matching cavity with a symmetrical left and right position and a forward opening is formed in the casing on the rear side, a spline rod is rotatably installed on the rear wall in the matching cavity, the fixed columns are in sliding fit with the side wall of the matching cavity, threaded columns capable of being separated are in threaded connection with the threaded grooves in the threaded grooves, sliding cavities are formed in the threaded columns, sliding rods are slidably installed between the upper wall and the lower wall of each sliding cavity, the spline rods extend forwards into the sliding cavities and are fixedly connected with the sliding rods, the spline rods are in spline fit with the threaded columns, spring grooves are symmetrically communicated with the upper wall and the lower wall of the matching cavity, electromagnets are fixedly arranged on the outer walls of the spring grooves, and fastening blocks are slidably installed between the front wall and the rear wall of the spring grooves, the fastening block is fixedly connected with the electromagnet through a spring, the wiring block is fixedly arranged on the lower side of the casing, a lifting element used for exposing the wiring block is arranged in the casing, and a detection element used for detecting whether the wiring block needs to be changed is arranged in the casing.

Optionally, the lifting element includes driving grooves which are located in the casing and are symmetrical left and right, a face gear is rotatably mounted on the bottom wall of the driving groove, a threaded rod is connected to the inner thread of the face gear, the threaded rod extends downward out of the casing and is fixed on the upper side of the cover body, a meshing groove is arranged between the driving grooves, gear shafts are rotatably mounted on the left and right walls of the meshing groove, a bevel gear is fixedly mounted on the gear shaft, a driving shaft is rotatably mounted on the bottom wall of the meshing groove, a transmission bevel gear meshed with the bevel gear is fixedly mounted on the driving shaft, a driving cavity is arranged on the lower side of the meshing groove, a driving motor is fixedly mounted on the bottom wall of the driving cavity, the driving shaft extends downward into the driving cavity and is connected with the driving motor, and a gear which is meshed with the face gear is fixedly mounted on the outer surface of the driving groove, the cover is internally provided with a wiring cavity with an upward opening, and the wiring block is positioned in the wiring cavity.

Optionally, the detecting element is including being located the chamber is stretched out to left and right sides position symmetry and opening decurrent in the casing, it has the sliding block to stretch out slidable mounting between the intracavity outer wall, rotate through the damping theory of rotation in the sliding block and install the damping pivot, damping pivot upside is equipped with and inlays induction system in the sliding block, the damping pivot extends backward the sliding block and with the cover body rotates to be connected.

Optionally, the rear side of the matching cavity is provided with a transmission groove, the spline rod extends backwards into the transmission groove and is fixedly provided with a belt pulley, the belt pulleys are connected through a belt, the right side of the transmission groove is fixedly provided with a motor, and the right side of the transmission groove is connected with the motor.

Optionally, be equipped with the forward groove of opening and shutting in the casing, install the display screen on the groove rear wall of opening and shutting, rotate between the groove upper and lower wall and install and can cover the open-close door of groove open-ended that opens and shuts, it has naked display screen to inlay in the open-close door, slidable mounting in the open-close door with the casing can screw-thread fit's fastening screw, the LED is installed to the casing front side.

Optionally, a motor groove is formed in the left side of the moving groove, a micro motor is fixedly arranged on the left wall of the motor groove, and the threaded shaft axially extends to the left side of the motor groove and is connected with the micro motor.

Optionally, the rear side of the detection cavity is provided with a motor cavity, the rear wall of the motor cavity is fixedly provided with a motor, and the motor axially extends backwards into the motor cavity and is connected with the motor.

A self-checking method of a three-phase ammeter for preventing damage caused by electricity stealing and self-checking comprises the following specific steps:

firstly, receiving signals through a display screen, collecting payment information, combining a front half casing with a rear half casing when the front half casing and the rear half casing need to be installed, starting a motor to enable a right-side spline rod to drive a right-side belt pulley to rotate, then driving a left-side belt pulley to rotate through a belt, enabling a spline rod to rotate together, enabling a threaded column to rotate after the spline rod rotates, enabling the threaded column to be matched with a thread groove through threads, enabling the threaded column to rotate to advance to be assembled and installed through the spline matching of the threaded column and the spline groove, enabling an electromagnet to be powered off after installation is completed, enabling a spring to control a fastening block to pop out and clamp the spline rod to brake, and when an external force rotates a fixed column, triggering an inductor to judge whether the casing is mistakenly disassembled;

secondly, when self-checking is needed, a motor is started, the rotation angle of the motor is controlled through a camera, then a motor shaft drives a disc to rotate, a micro motor is started, a threaded shaft rotates to drive a threaded block to move, then a micro hydraulic cylinder controls the metal rod to extend out, after the metal rod contacts a circuit board, the metal rod is detected through a resistance meter, and then a display screen is used for displaying where the circuit has problems, so that the maintenance is simple;

thirdly, when wiring is needed, starting a driving motor to enable a driving shaft to drive a transmission bevel gear to rotate, then driving a gear shaft by a bevel gear, then driving an end face gear to rotate by the gear, enabling a threaded rod to drive a cover body to move downwards, and then wiring after a wiring block is exposed;

the fourth step, when the cover body moves down, drive the sliding block downstream, when the artificial damping pivot that rotates, can trigger induction system for whether the machine detects to be dismantled, carry out the high in the clouds and report to the police.

The invention has the beneficial effects that:

1. when the sensor is installed, the installation screw is fixed, the screw is locked by matching with a part at the rear half part of the machine, and then the installation screw can be rotated when a person unfamiliar with the machine wants to refit, so that the sensor can be triggered to judge whether the refit exists;

2. the invention detects whether the capacitor on the circuit board has problems by itself, and then displays the circuit by the display screen, so that the maintenance personnel can maintain the circuit conveniently;

3. according to the invention, the part of the external electric wire is hidden, then when wiring is required, the wiring position is displayed by controlling lifting, then wiring is carried out, and an outsider can not modify a machine without authorization through automatic control, so that electricity stealing and personal injury are prevented.

Drawings

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

FIG. 1 is a schematic structural diagram of a three-phase ammeter for preventing damage caused by electricity stealing and self-checking according to the invention;

FIG. 2 is a schematic view of the housing of FIG. 1;

FIG. 3 is a schematic view of the structure at A-A in FIG. 2;

FIG. 4 is a schematic view of the structure at B-B in FIG. 2;

FIG. 5 is a schematic view of the threaded rod of FIG. 2;

FIG. 6 is a schematic diagram of the slider structure of FIG. 1.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-6, a three-phase ammeter for preventing damage caused by electricity stealing and self-checking according to an embodiment of the present invention includes a housing 11 separable from front to back, a detection chamber 17 is provided in the housing 11, a motor shaft 35 is rotatably mounted on a rear wall of the detection chamber 17, an ohmmeter 20 is fixedly mounted on a disc 21 on the motor shaft 35, cameras 18 embedded in the disc 21 are symmetrically provided at upper and lower positions of the ohmmeter 20, the disc 21 extends from a front side of the camera 18, a moving groove 22 which is symmetrical with respect to the ohmmeter 20 and has a forward opening is provided in the disc 21, a threaded shaft 33 is rotatably mounted on an outer wall of the moving groove 22, a threaded block 34 slidably mounted on a rear wall of the moving groove 22 is threadedly connected to the threaded shaft 33, a micro hydraulic cylinder 39 extending into the detection chamber 17 is fixedly provided on a front side of the threaded block 34, a metal rod 38 is fixedly arranged on the front side of the micro hydraulic cylinder 39, the metal rod 38 is connected with the ohmmeter 20 through an electric wire, fixed columns 16 are symmetrically embedded in the left and right positions in the casing 11 on the front side, an inductor 41 embedded in the casing 11 on the front side is arranged on the lower side of the fixed column 16, threaded grooves 40 with backward openings are arranged in the fixed columns 16, matching cavities 50 with forward openings and symmetrical left and right positions are arranged in the casing 11 on the rear side, spline rods 45 are rotatably arranged on the inner rear wall of the matching cavities 50, the fixed columns 16 are in sliding fit with the side walls of the matching cavities 50, threaded columns 42 capable of being separated are in threaded connection with the threaded grooves 40, sliding cavities 43 are arranged in the threaded columns 42, sliding rods 44 are slidably arranged between the upper and lower walls of the sliding cavities 43, the spline rods 45 extend forwards into the sliding cavities 43 and are fixedly connected with the sliding rods 44, the spline rod 45 is in spline fit with the threaded column 42, the upper and lower positions of the fit cavity 50 are symmetrically communicated with spring grooves 48, electromagnets 46 are fixedly arranged on the outer walls of the spring grooves 48, fastening blocks 49 are slidably arranged between the front and rear walls of the spring grooves 48, the fastening blocks 49 are fixedly connected with the electromagnets 46 through springs 47, the lower side of the casing 11 is fixedly provided with a junction block 29, a lifting element 101 used for exposing the junction block 29 is arranged in the casing 11, and a detection element 102 used for detecting whether a person needs to change the junction block 29 is arranged in the casing 11.

Preferably, the lifting element 101 includes driving grooves 24 located in the housing 11 and symmetrically located left and right, a face gear 55 is rotatably mounted on a bottom wall of the driving groove 24, a threaded rod 25 is connected to the face gear 55 via an internal thread, the threaded rod 25 extends downward out of the housing 11 and is fixed on an upper side of the cover 27, meshing grooves 26 are provided between the driving grooves 24, gear shafts 57 are rotatably mounted on left and right walls of the meshing grooves 26, bevel gears 58 are fixedly mounted on the gear shafts 57, a driving shaft 61 is rotatably mounted on a bottom wall of the meshing grooves 26, a transmission bevel gear 59 meshed with the bevel gear 58 is fixedly mounted on the driving shaft 61, a driving cavity 60 is provided on a lower side of the meshing grooves 26, a driving motor 62 is fixedly mounted on a bottom wall of the driving cavity 60, the driving shaft 61 extends downward into the driving cavity 60 and is connected with the driving motor 62, the gear shafts 57 extends outward into the driving grooves 24 and is fixedly mounted with gears meshed with the face gear 55 56, a wiring cavity 28 with an upward opening is arranged in the cover body 27, the wiring block 29 is positioned in the wiring cavity 28, and the cover body 27 is controlled to integrally lift through a driving motor 62.

Preferably, the detecting element 102 includes an extending cavity 63 with a downward opening and symmetrical left and right positions in the casing 11, a sliding block 30 is slidably mounted between the inner wall and the outer wall of the extending cavity 63, a damping rotating shaft 65 is rotatably mounted in the sliding block 30 according to a damping rotation principle, an induction device 64 embedded in the sliding block 30 is arranged on the upper side of the damping rotating shaft 65, and the damping rotating shaft 65 extends backwards out of the sliding block 30 and is rotatably connected with the cover 27.

Preferably, a transmission groove 51 is formed in the rear side of the matching cavity 50, the spline rod 45 extends backwards into the transmission groove 51 and is fixedly provided with a belt pulley 54, the belt pulleys 54 are connected through a belt 53, a motor 52 is fixedly arranged on the rear wall of the transmission groove 51 on the right side, the spline rod 45 on the right side is connected with the motor 52, and whether a person detaches the casing 11 is judged through the rotation of the damping rotating shaft 65.

Preferably, an opening and closing groove 31 with a forward opening is formed in the machine shell 11, a display screen 14 is installed on the rear wall of the opening and closing groove 31, an opening and closing door 13 capable of covering the opening of the opening and closing groove 31 is rotatably installed between the upper wall and the lower wall of the opening and closing groove 31, the exposed display screen 14 is embedded in the opening and closing door 13, a fastening screw 15 capable of being in threaded fit with the machine shell 11 is installed in the opening and closing door 13 in a sliding mode, and an LED12 is installed on the front side of the machine shell 11.

Preferably, a motor groove 23 is arranged on the left side of the moving groove 22, a micro motor 19 is fixedly arranged on the left wall of the motor groove 23, and the threaded shaft 33 extends leftwards into the motor groove 23 and is connected with the micro motor 19.

Preferably, a motor cavity 37 is arranged at the rear side of the detection cavity 17, a motor 36 is fixedly arranged on the rear wall of the motor cavity 37, and the motor shaft 35 extends backwards into the motor cavity 37 and is connected with the motor 36.

firstly, receiving signals through the display screen 14 to collect payment information, when the front half casing 11 and the rear half casing 11 need to be installed, combining the front half casing 11 and the rear half casing 11, then starting the motor 52 to enable the right-side spline rod 45 to drive the right-side belt pulley 54 to rotate, then enabling the belt 53 to drive the left-side belt pulley 54 to rotate, enabling the spline rod 45 to rotate together, enabling the threaded column 42 to rotate after the spline rod 45 rotates, enabling the threaded column 42 to rotate through threaded fit with the threaded groove 40, enabling the threaded column 42 to be matched with a spline of the spline rod 45 at the same time, enabling the threaded column 42 to rotate and advance to be installed in a combined mode, enabling the spring 47 to control the fastening block 49 to pop out to clamp the spline rod 45 to brake, and enabling the inductor 41 to be triggered when the external force rotates the fixing column 16 to judge whether a person mistakenly detaches the casing 11;

secondly, when self-checking is needed, a motor 36 is started, the rotation angle of the motor 36 is controlled through a camera 18, then a motor shaft 35 drives a disc 21 to rotate, a micro motor 19 is started, a threaded shaft 33 rotates, a threaded block 34 is driven to move, then a micro hydraulic cylinder 39 controls the extension of a metal rod 38, after the metal rod 38 contacts a circuit board 32, the metal rod is detected through a resistance meter 20, and then a display screen 14 is used for displaying where a circuit has problems, so that the maintenance is simple;

thirdly, when wiring is needed, starting the driving motor 62, enabling the driving shaft 61 to drive the transmission bevel gear 59 to rotate, then enabling the bevel gear 58 to drive the gear shaft 57, then enabling the gear 56 to drive the end face gear 55 to rotate, enabling the threaded rod 25 to drive the cover body 27 to move downwards, and then enabling the wiring block 29 to be exposed for wiring;

fourthly, when the cover body 27 moves down, the sliding block 30 is driven to move down, and when the damping rotating shaft 65 is rotated manually, the sensing device 64 is triggered, so that the machine detects whether the machine is detached or not, and the cloud alarm is carried out.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a prevent that electricity stealing from causing injury and self-checking's three-phase ampere meter, the casing that can separate around including, be equipped with in the casing and detect the chamber, its characterized in that: a motor shaft is rotatably installed on the rear wall of the detection cavity, an ohmmeter is fixedly arranged on a disc on the motor shaft, cameras embedded in the disc are symmetrically arranged at the upper and lower positions of the ohmmeter, the disc extends out of the front side of the cameras, a moving groove which is symmetrical about the ohmmeter and has a forward opening is arranged in the disc, a threaded shaft is rotatably installed on the outer wall of the moving groove, a threaded block which is slidably installed on the rear wall of the moving groove is in threaded connection with the threaded shaft, a miniature hydraulic cylinder which extends into the detection cavity is fixedly arranged on the front side of the threaded block, a metal rod is fixedly arranged on the front side of the miniature hydraulic cylinder, the metal rod is connected with the ohmmeter through an electric wire, fixed columns are symmetrically embedded at the left and right positions in the casing on the front side, an inductor embedded in the casing on the front side is arranged on the lower side of the fixed columns, and a threaded groove with a backward opening is arranged in the fixed columns, a matching cavity with symmetrical left and right positions and a forward opening is arranged in the casing on the rear side, a spline rod is rotatably arranged on the rear wall in the matching cavity, the fixing column is in sliding fit with the side wall of the matching cavity, a threaded column capable of being separated is connected in a threaded groove in a threaded manner, a sliding cavity is arranged in the threaded column, a sliding rod is slidably arranged between the upper wall and the lower wall of the sliding cavity, the spline rod extends forwards into the sliding cavity and is fixedly connected with the sliding rod, the spline rod is in spline fit with the threaded column, spring grooves are symmetrically communicated with the upper wall and the lower wall of the matching cavity, an electromagnet is fixedly arranged on the outer wall of each spring groove, a fastening block is slidably arranged between the front wall and the rear wall of each spring groove, the fastening block is fixedly connected with the electromagnet through a spring, a wiring block is fixedly arranged on the lower side of the casing, and a lifting element for exposing the wiring block is arranged in the casing, and a detection element for detecting whether the wiring block needs to be changed is arranged in the shell.

2. The three-phase ammeter capable of preventing injuries caused by electricity theft and self-checking as claimed in claim 1, wherein: the lifting element comprises driving grooves which are positioned in the casing and are symmetrical left and right, end face gears are rotatably arranged on the bottom walls of the driving grooves, threaded rods are connected with the inner threads of the end face gears in a rotating mode, the threaded rods downwards extend out of the casing and are fixed on the upper side of the cover body, meshing grooves are formed between the driving grooves, gear shafts are rotatably arranged on the left and right walls of the meshing grooves, bevel gears are fixedly arranged on the gear shafts, driving shafts are rotatably arranged on the bottom walls of the meshing grooves, transmission bevel gears meshed with the bevel gears are fixedly arranged on the driving shafts, driving cavities are arranged on the lower sides of the meshing grooves, driving motors are fixedly arranged on the bottom walls of the driving cavities, the driving shafts downwards extend into the driving cavities and are connected with the driving motors, gears axially extend into the driving grooves and are fixedly provided with gears meshed with the end face gears, and wiring cavities with upward openings are arranged in the cover body, the junction block is located in the junction cavity.

3. The three-phase ammeter capable of preventing injuries caused by electricity theft and self-checking as claimed in claim 2, wherein: the detecting element is including being located bilateral position symmetry and the decurrent chamber of stretching out of opening in the casing, it has the sliding block to stretch out slidable mounting between the intracavity outer wall, rotate through the damping rotation principle in the sliding block and install the damping pivot, damping pivot upside is equipped with and inlays induction system in the sliding block, the damping pivot extends backward the sliding block and with the cover body rotates to be connected.

4. The three-phase ammeter capable of preventing injuries caused by electricity theft and self-checking as claimed in claim 3, wherein: the rear side of the matching cavity is provided with a transmission groove, the spline rod extends backwards into the transmission groove and is fixedly provided with a belt pulley, the belt pulleys are connected through a belt, the right side of the transmission groove is fixedly provided with a motor, and the right side of the transmission groove is connected with the motor.

5. The three-phase ammeter capable of preventing injuries caused by electricity theft and self-checking as claimed in claim 4, wherein: the LED lamp is characterized in that an opening groove with a forward opening is formed in the shell, a display screen is installed on the rear wall of the opening groove, an opening door capable of covering the opening of the opening groove is installed between the upper wall and the lower wall of the opening groove in a rotating mode, a naked display screen is embedded in the opening door, a fastening screw capable of being in threaded fit with the shell is installed in the opening door in a sliding mode, and an LED is installed on the front side of the shell.

6. The three-phase ammeter capable of preventing injuries caused by electricity theft and self-checking as claimed in claim 5, wherein: the left side of the moving groove is provided with a motor groove, the left wall of the motor groove is fixedly provided with a micro motor, and the axial direction of the thread shaft extends to the left side of the motor groove and is connected with the micro motor.

7. The three-phase ammeter capable of preventing injuries caused by electricity theft and self-checking as claimed in claim 6, wherein: the rear side of the detection cavity is provided with a motor cavity, the rear wall of the motor cavity is fixedly provided with a motor, and the motor axially extends backwards into the motor cavity and is connected with the motor.

8. The self-checking method of the three-phase ammeter for preventing the damage caused by the electricity theft and self-checking according to claim 7 is characterized by comprising the following specific steps: