CN113848359A

CN113848359A - Electricity stealing prevention metering box and method

Info

Publication number: CN113848359A
Application number: CN202111146000.9A
Authority: CN
Inventors: 张令保
Original assignee: Jinan Baoya Trading Co ltd
Current assignee: Jinan Baoya Trading Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2021-12-28

Abstract

The invention discloses an electricity stealing prevention metering box and a method, the electricity stealing prevention metering box comprises a box body, the box body is hinged with a box door through a rotating shaft, a safety area is arranged on the inner side of the bottom of the box body, a guide pipe is fixedly arranged in the safety area and perpendicular to the back of the box body, an ejector rod is arranged in the guide pipe in a sliding mode, the left end of the ejector rod is provided with a connecting rod in a telescopic mode, a current conducting plate and a grounding plate are arranged on the connecting rod, the current conducting plate is abutted to the incoming path of an electric wire and communicated with an outgoing path to enable a circuit to be communicated, the rotating shaft is connected with a cam through a gear set and belt transmission, the cam is abutted to a first clamping rod, the first clamping rod is vertically arranged on the inner wall of the safety area in a sliding mode, a first groove is correspondingly formed in the ejector rod, a second clamping rod driven by an electromagnetic device is arranged on one side of the connecting rod, and the electromagnetic device is activated to operate by a power-on key. The invention has reasonable and simple structure, the circuit can be disconnected and grounded after the box door is opened to a certain degree, and the power supply can be recovered only by a specific power-on key after the box door is closed, thereby finally achieving the effects of preventing electricity stealing, facilitating the maintenance and not influencing the power-on after the box door is loosened.

Description

Electricity stealing prevention metering box and method

Technical Field

The invention belongs to the technical field of electricity stealing prevention of metering boxes, and particularly relates to an electricity stealing prevention metering box and an electricity stealing prevention method.

Background

The user steals electricity and generally opens the batch meter privately, carries out illegal operation to the ammeter and reaches the purpose of stealing electricity. At present, the commonly used metering boxes adopt padlocks or built-in locks, electricity stealing users can easily and privately prepare keys or pick up door metering box doors to steal electricity, certain economic loss is caused to power supply departments by electricity stealing behaviors, meanwhile, a plurality of unsafe factors are brought to normal power supply, the metering boxes do not have electricity stealing prevention functions, the metering boxes are one of important factors causing the users to easily steal electricity, in addition, equipment in the metering boxes cannot be grounded timely after maintenance personnel open the box doors, therefore, great potential safety hazards are brought to maintenance of the maintenance personnel, the existing device can realize power failure of opening the doors and power supply of electronic locks with doors closed, but after the service time is long, the doors of the box bodies are easy to loosen, poor contact can be caused, and power supply is influenced.

Disclosure of Invention

In order to overcome the technical problems, the invention provides an electricity stealing prevention metering box and an electricity stealing prevention metering method.

In order to achieve the purpose, the invention adopts the following technical scheme:

an anti-electricity-theft metering box comprises a box body, wherein the box body is hinged with a box door through a rotating shaft, a safety area is arranged on the inner side of the bottom of the box body, a guide pipe is fixedly arranged in the safety area and is vertical to the back surface of the box body, an ejector rod is arranged in the guide pipe in a sliding mode, a part, located in the guide pipe, of the ejector rod is fixedly sleeved with a circular ring, a first spring is arranged between the circular ring and the left end of the guide pipe, a current conducting plate is arranged at the left end of the ejector rod, the current conducting plate is abutted to the incoming path of an electric wire leftwards and is communicated with an outgoing path, the rotating shaft is connected with a cam through a gear set and belt transmission, the cam is abutted to a first clamping rod, the first clamping rod is vertically arranged on the inner wall of the safety area in a sliding mode, a corresponding first groove is reserved on the ejector rod, when the box door is opened in a small range, the ejector rod cannot be moved outwards due to the limit of the first clamping rod, and when the box door is opened to a certain degree, the protruding part of the cam is rotated away from the first clamping rod, the first clamping rod moves upwards to relieve the limit of the ejector rod, and the ejector rod drives the current-conducting plate to move outwards under the action of the first spring to disconnect the circuit.

The ejector pin left end is equipped with the spout along the pole direction, slides in the spout and sets up the connecting rod, set up the second spring between connecting rod and the spout bottom, connecting rod left end fixed connection current conducting plate, connecting rod one side safety zone inner wall sets up the second screens pole, correspond on the connecting rod and leave the second recess, the ejector pin is taken connecting rod, current conducting plate outward and is moved the back, and the connecting rod just is spacing by the second screens pole, keeps the outage state to when closing the chamber door, the ejector pin moves in, and the second spring compression, the connecting rod can not move in, and then can not resume the circular telegram immediately.

The ground plate is fixedly arranged at the middle section of the connecting rod, the coming path and the going path of the ground wire are fixedly arranged on the inner wall of the safety area at the right end of the connecting rod, and when the ejector rod drives the connecting rod to move outwards, the ground plate is connected with the ground wire of the metering box while the power is off, so that the safety of workers is guaranteed.

First screens pole top level sets up the butt platform, and the cam of being convenient for is to first screens pole application of force, butt platform both sides fixed connection slide bar, two the vertical sliding connection of slide bar is in the slide cartridge, the slide cartridge is fixed to be set up in safe district inner wall, set up the third spring between slide bar and the slide cartridge bottom, when cam protrusion changes from the butt platform, first screens pole just shifts up under the effect of third spring, moves down otherwise.

The second clamping rod is driven by an electromagnetic device, the electromagnetic device is used for pushing out the second clamping rod in a default mode under the condition that the electromagnetic device is not powered on, the second clamping rod is retracted when the electromagnetic device is powered on, a key hole is formed in the bottom of the safety area, two electrodes of the electromagnetic device are located in the key hole, a power-on key is additionally arranged, a power supply is arranged in the power-on key, electrodes are arranged on the head of the power-on key, the positions of the two electrodes on the power-on key correspond to the positions of the two electrodes of the electromagnetic device in the key hole, and the electrodes are correspondingly contacted after the power-on key is inserted into the key hole to rotate, so that the electromagnetic device can retract the second clamping rod.

First screens pole includes shell and inner core, the vertical sliding connection of inner core is in the shell lower extreme, set up the fourth spring between inner core and the shell upper end, this design objective is, when closing the chamber door the ejector pin internal shift but the first recess on the ejector pin is not to it with first screens pole, and first screens pole has received cam pressure and descends, and the inner core is temporarily compressed into in the shell this moment, moves to first recess and first screens pole in the ejector pin to after, and the inner core falls into first recess under the effect of fourth spring and accomplishes spacingly to the ejector pin.

The right end of the ejector rod extends out of the safety area after being bent twice, and is abutted against the box door (in a closed or slightly opened state) outside the safety area, so that the safety area is convenient to conceal.

An electricity stealing prevention method, comprising the steps of:

s1, when the box door is opened, the protruding part of the cam is rotated away from the first clamping rod by the rotating shaft through the gear set and the belt, the third spring drives the sliding rod to drive the abutting table to drive the first clamping rod to move upwards and move out of the first groove, the ejector rod loses the limit and moves rightwards under the action of the first spring to drive the connecting rod and the current-conducting plate to move rightwards, and the circuit is disconnected;

s2, the connecting rod moves rightwards and simultaneously drives the ground plate to move rightwards, the incoming path and the outgoing path of the ground plate and the ground wire are in contact, the ground wire is connected, after the connecting rod moves rightwards, a second groove in the connecting rod is aligned with a second clamping rod, and the second clamping rod is bounced into the second groove under the action of the electromagnetic device to limit the connecting rod;

s3, when the box door is closed, the cam enables the first clamping rod to move downwards, the box door enables the ejector rod to move inwards, the inner core compresses the fourth spring before the first groove is aligned with the first clamping rod, the inner core enters the shell, when the first groove is aligned with the first clamping rod, the inner core falls into the first groove to complete limiting of the ejector rod, the first clamping rod and the ejector rod are reset at the moment, the second spring is compressed, the connecting rod is fixed in position due to limiting of the second clamping rod, and the circuit is still in a disconnected state;

and S4, after the box door is closed, inserting the power-on key into the key hole and rotating the power-on key to enable the power-on key to supply power to the electromagnetic device, withdrawing the second clamping rod after the electromagnetic device is powered on, and enabling the connecting rod to drive the current-conducting plate and the ground plate to reset under the action of the second spring to connect the circuit and disconnect the ground wire.

Compared with the prior art, the invention has the beneficial effects that:

1. the box door is provided with a connecting rod, the connecting rod is connected with a conductive plate, and a second clamping rod controlled by an electromagnetic device is arranged to limit the connecting rod after power failure, the box door is automatically powered off after being opened, power supply cannot be immediately recovered after the box door is closed, and power can be recovered after a specific power-on key is needed to relieve the limit of the connecting rod, so that a power-stealing person is prevented from smoothly opening the box door and then externally connecting a circuit to steal power;

2. according to the invention, the grounding plate is arranged on the connecting rod, and after the box door is opened, the grounding wire can be automatically connected while the power is cut off, so that potential safety hazards during inspection and maintenance are reduced, and the inspection and the repair are convenient;

3. the first clamping rod is arranged and controlled by the rotating shaft through the gear set and the belt, the top rod is kept limited until the box door is opened to a certain degree, and the situation that the top rod moves after the box door is loosened for a long time and the power supply is influenced by accidental circuit disconnection is prevented.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the direction A in FIG. 1;

FIG. 3 is a schematic view at B in FIG. 2;

FIG. 4 is a schematic view at C of FIG. 2;

FIG. 5 is a schematic view at D of FIG. 2;

FIG. 6 is a schematic view of another state of FIG. 2;

FIG. 7 is a schematic view of the power-on key of the present invention.

Description of reference numerals:

1, a box body; 2 a safety zone; 3, rotating a shaft; 4 gear sets; 5, a top rod; 5-1 ring; 5-2 a first groove; 6, guiding a pipe; 6-1 a first spring; 7, a belt; 8, a cam; 9 a conductive plate; 10 electric wires; 11 a connecting rod; 11-1 second groove; 12 a second detent lever; 13 an electromagnetic device; 13-1 keyhole; 14 a ground plate; 15 ground wire; 16 a second spring; 17 a first detent lever; 17-1 a fourth spring; 18 a docking station; 19 a slide bar; 20, a sliding cylinder; 20-1 third spring; 21 energizing the key.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

An electricity stealing prevention metering box comprises a box body 1, the box body 1 is hinged with a box door through a rotating shaft 3, a safety area 2 is arranged at the inner side of the bottom of the box body 1, a guide tube 6 is fixedly arranged in the safety area 2 and is vertical to the back surface of the box body 1, a mandril 5 is arranged in the guide tube 6 in a sliding way, a part of the ejector rod 5 positioned in the guide pipe 6 is fixedly sleeved with a circular ring 5-1, a first spring 6-1 is arranged between the circular ring 5-1 and the left end of the guide pipe 6, the left end of the mandril 5 is provided with a conductive plate 9, the conductive plate 9 is leftwards abutted against the incoming path and the outgoing path of the electric wire 10 to communicate the circuit, the rotating shaft 3 is in transmission connection with a cam 8 through a gear set 4 and a belt 7, the cam 8 is abutted against a first clamping rod 17, the first clamping rod 17 is vertically arranged on the inner wall of the safety area 2 in a sliding mode, and a first groove 5-2 is correspondingly reserved on the ejector rod 5.

The left end of the ejector rod 5 is provided with a sliding groove along the rod direction, a connecting rod 11 is arranged in the sliding groove in a sliding mode, a second spring 16 is arranged between the connecting rod 11 and the bottom of the sliding groove, the left end of the connecting rod 11 is fixedly connected with a conducting plate 9, a second clamping rod 12 is arranged on the inner wall of a safety area 2 on one side of the connecting rod 11, and a second groove 11-1 is correspondingly reserved on the connecting rod 11.

The ground plate 14 is fixedly arranged at the middle section of the connecting rod 11, and the coming path and the going path of the ground wire 15 are fixedly arranged on the inner wall of the safety zone 2 at the right end of the connecting rod 11.

The top of the first clamping rod 17 is horizontally provided with a butting table 18, two sides of the butting table 18 are fixedly connected with sliding rods 19, the two sliding rods 19 are vertically and slidably connected into sliding cylinders 20, the sliding cylinders 20 are fixedly arranged on the inner wall of the safety zone 2, and third springs 20-1 are arranged between the sliding rods 19 and the bottoms of the sliding cylinders 20.

The second clamping rod 12 is driven by an electromagnetic device 13, a key hole 13-1 is formed in the bottom of the safety zone 2, two electrodes of the electromagnetic device 13 are located in the key hole 13-1, an electrifying key 21 is additionally arranged, a power supply is arranged in the electrifying key 21, and the head of the electrifying key is provided with an electrode.

The first clamping rod 17 comprises an outer shell and an inner core, the inner core is vertically connected to the lower end of the outer shell in a sliding mode, and a fourth spring 17-1 is arranged between the inner core and the upper end of the outer shell.

The right end of the ejector rod 5 extends out of the safety area 2 after being bent twice.

An electricity stealing prevention method, comprising the steps of:

s1, when the box door is opened, the protruding part of the cam 8 is rotated away from the first clamping rod 17 by the rotating shaft 3 through the gear set 4 and the belt 7, the third spring 20-1 drives the sliding rod 19 to drive the abutting table 18 to drive the first clamping rod 17 to move upwards and move out of the first groove 5-2, the ejector rod 5 loses the limit and moves rightwards under the action of the first spring 6-1 to drive the connecting rod 11 and the current conducting plate 9 to move rightwards, and the current conducting plate 9 is far away from the incoming path and the outgoing path of the electric wire 10 to disconnect the circuit;

s2, the connecting rod 11 moves to the right and simultaneously drives the ground plate 14 to move to the right, the ground plate 14 is in contact with the coming path and the going path of the ground wire 15, the ground wire 15 is communicated, after the connecting rod 11 moves to the right, a second groove 11-1 in the connecting rod 11 is aligned with a second clamping rod 12, and the second clamping rod 12 is bounced into the second groove 11-1 under the action of the electromagnetic device 13 to limit the connecting rod 11;

s3, when the box door is closed, the cam 8 enables the first clamping rod 17 to move downwards, the box door enables the ejector rod 5 to move inwards, before the first groove 5-2 is aligned with the first clamping rod 17, the inner core compresses the fourth spring 17-1 and enters the shell, after the first groove 5-2 is aligned with the first clamping rod 17, the inner core falls into the first groove 5-2 to complete limiting of the ejector rod 5, the first clamping rod 17 and the ejector rod 5 are reset at the moment, the second spring 16 is compressed, the connecting rod 11 is fixed in position due to limiting of the second clamping rod 12, and the circuit is still in a disconnected state;

s4, after the box door is closed, the power-on key 21 is inserted into the key hole 13-1 and rotates, the power-on key 21 supplies power to the electromagnetic device 13, the second clamping rod 12 is retracted after the electromagnetic device 13 is powered on, the connecting rod 11 drives the conductive plate 9 and the grounding plate 14 to reset under the action of the second spring 16, the electric wire 10 is communicated, and the grounding wire 15 is disconnected.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the above embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides an electricity stealing prevention batch meter, includes the box, the box passes through the articulated chamber door of pivot, its characterized in that: the bottom half inboard sets up the safety zone, perpendicular fixed stand pipe that sets up in the safety zone at the box back, the slip sets up the ejector pin in the stand pipe, the part that the ejector pin is located the stand pipe is fixed to be cup jointed the ring, set up first spring between ring and the stand pipe left end, the ejector pin left end sets up the current conducting plate, the current conducting plate is left the way of butt electric wire and is gone to the way and make the circuit intercommunication, the pivot is passed through the gear train and is connected the cam with belt drive, the first screens pole of cam butt, the vertical slip of first screens pole sets up in the safety zone inner wall, leave corresponding first recess on the ejector pin.

2. The electric larceny prevention metering box according to claim 1, characterized in that: the utility model discloses a safe district, including ejector pin, connecting rod, spout, connecting rod left end, connecting rod and spout, the ejector pin left end is equipped with the spout along the pole direction, slides in the spout and sets up the connecting rod, set up the second spring between connecting rod and the spout bottom, connecting rod left end fixed connection current conducting plate, connecting rod one side safety zone inner wall sets up the second screens pole, the correspondence leaves the second recess on the connecting rod.

3. The electric larceny prevention metering box according to claim 2, characterized in that: the ground plate is fixedly arranged at the middle section of the connecting rod, and the coming path and the going path of the ground wire are fixedly arranged on the inner wall of the safety zone at the right end of the connecting rod.

4. The electric larceny prevention metering box according to claim 1, characterized in that: first screens pole top level sets up the butt platform, butt platform both sides fixed connection slide bar, the vertical sliding connection of slide bar is in the slide cartridge, the slide cartridge is fixed to be set up in the safe zone inner wall, set up the third spring between slide bar and the slide cartridge bottom.

5. The electric larceny prevention metering box according to claim 2, characterized in that: the second clamping rod is driven by an electromagnetic device, a key hole is formed in the bottom of the safety area, two electrodes of the electromagnetic device are located in the key hole, and an electrified key is correspondingly arranged in the key hole.

6. The electric larceny prevention metering box according to claim 5, characterized in that: the power supply is arranged in the power-on key, the head of the power-on key is provided with an electrode, and the position of the electrode corresponds to that of an electrode of an electromagnetic device in the key hole.

7. The electric larceny prevention metering box according to claim 1, characterized in that: the first clamping rod comprises an outer shell and an inner core, the inner core is vertically connected to the lower end of the outer shell in a sliding mode, and a fourth spring is arranged between the inner core and the upper end of the outer shell.

8. The electric larceny prevention metering box according to claim 1, characterized in that: the right end of the ejector rod extends out of the safety area after being bent twice.

9. An electricity larceny prevention method, characterized in that the electricity larceny prevention metering box of any one of claims 1-8 is adopted, and the method comprises the following steps:

s1, when a box door is opened, a rotating shaft enables a protruding part of a cam to rotate away from a first clamping rod through a gear set and a belt, the first clamping rod moves upwards, a mandril loses the limit and moves rightwards under the action of a first spring, a current-conducting plate moves rightwards, and a circuit is disconnected;

s2, limiting by a second clamping rod after the connecting rod is moved rightwards, and communicating the ground wire by a ground plate;

s3, when the box door is closed, the first clamping rod and the ejector rod reset, the second spring compresses, the connecting rod is not moved, and the circuit is still in a disconnected state;

s4, the power-on key is inserted into the key hole, the electromagnetic device is powered on to withdraw the second clamping rod, the connecting rod and the current-conducting plate are reset, and the circuit is communicated.