CN201288455Y - Gate inhibition device of electric energy dose meter cabinet - Google Patents

Abstract

A door inhibition device for a power metering closet includes a permanent magnet fixed on the closet door; a base frame fixed on the closet bottom board, a telescopic link inserted in an inner cavity of the base frame from the front, the front-end of the telescopic link is provided with a dried reed pipe acted by the permanent magnet and connected with a main station alarm device; the device also includes a telescopic link caging mechanism. The device is characterized in that installation is convenient without drillings and safety and reliability performance is good.

Description

Electric energy metrical bin entrance guard device

Technical field

The utility model relates to entrance guard device, especially for the entrance guard device of electric energy metrical bin.

Background technology

Existing metering device seals, and traditional is to adopt seal, lock, strip of paper used for sealing.But can find out that from the stealing case that my office and brother office investigate and prosecute methods such as that the criminal adopts is imitative, brill, subsides just can more easily be opened envelope.(because of cause specific is not described here), and with the prison personnel as very not careful, can't see at all.Up to the present, the stealing case of discovering and seizing all need be opened metering device (short circuit once except).Particularly serious in market economy, sincere forfeiture, electricity consumer stealing electricity phenomenon, and adopt under the situation of high-tech stealing, the method that only adopts traditional seal, lock, strip of paper used for sealing is not all right.

The utility model content

The purpose of this utility model provides a kind of easy for installation, safe and reliable electric energy metrical bin entrance guard device.

This novel purpose is achieved in that a kind of electric energy metrical bin entrance guard device, comprises as the permanent magnet that is fixed on the bin door; Be used for fixing the base on the bin base plate, insert the expansion link of base intracavity from the front portion, the expansion link front portion is set with one by permanent magnet effect and the tongue tube that is connected with the main website warning device; Also has the expansion link locking mechanism.

Entrance guard device claims weigh box, cabinet door open alarm device again, is to utilize one of them function that is installed in the wireless load management terminal in the metering casing, installs gate inhibition's switch again additional.No matter be what reason, as long as opened the door of case, cabinet, gate inhibition's switch is action just, and by loaded termination time, the number of times of open and close door are reported to the police from the trend main website, and the operator on duty just accurately knew in the very first time.And then can investigate, analysis is that the someone works or other reason, and this is to enhancing internal management, and stop stealing all has very big benefit at all.Also find at present the method that cracks, therefore called for fun " the loyal house dog of electricity man ".

Application based on gate inhibition's function of wireless load management system cooperates traditional seal, lock, strip of paper used for sealing again, concerning anti-electricity-theft and management through quantification work, has gone up a new step especially! Therefore, used gate inhibition's switch after, when metering chamber door when being opened, the supervisor immediately as can be known, the very first time investigates and prosecutes, even the sort ofly before having avoided caught stealing, but the time is very long, and the bad calculating of electric weight is remedied, the still electric power enterprise of finally standing to lose.This with the situation of former no reliable real-time watch device under, the user does trick at switchgear house, and metering device is out of order, and could find to have had great difference when having only special inspection.

Particularly state's net corporation plan is used under the prospect that during the 11th Five-Year the special change electricity consumer more than the 50kVA all will be installed wireless load management terminal, and is more meaningful.

The beneficial effect of this device is:

1, simple in structure, expense is low.

2, adopt strong self-adhesive fix and magnetic force absorption fixing, easy for installation, need not hole, be fit to various casees, cabinet.

3, have the magnetic cover protection of anti-pirate of the open, misoperation can not take place in dry-reed tube switch.

4, switch life is long, and is non-maintaining.

5, adopt magnetic bases, the bonding dual mode of powerful viscose glue, fixation simultaneously.

Description of drawings

Fig. 1 is a structure chart of the present utility model.

The specific embodiment

Fig. 1 illustrates, this novel comprising as the permanent magnet 10 that is fixed on the bin door; Be used for fixing the base 3 on the bin base plate, insert the expansion link 6 of base 3 inner chambers from the front portion, the expansion link front portion is set with one by permanent magnet 10 effects and the tongue tube 8 that is connected with the main website warning device; Also has the expansion link locking mechanism.(base plate of bin is right in opposite directions with door).Base 3 front portions and expansion link 6 are pipe fitting; Be provided with magnetic shielding cover 7 in the expansion link 6 anterior pipes, tongue tube 8 switches are arranged in the magnetic shielding cover 7.The expansion link locking mechanism is: locking nut 5 is screwed on the silk mouth of base 3 anterior tube couplings.The base plate of base 3 is one as the fixing circular permanent magnet 2 of magnetic force absorption, and its diameter is greater than the diameter of the anterior tube coupling of base.Permanent magnet 2 external surfaces also are fixed with a strong self-adhesive 1 that has been used for fixation; Be fixed with on the permanent magnet 10 and be used for strong self-adhesive bonding on door 11.Permanent magnet 10 is fixed on the door through strong self-adhesive 11, and permanent magnet 10 also can directly rely on the magnetic force suction-operated directly to be fixed on the door (as iron gate).Expansion link 6 front ends have been fixed with positioning mark effect dyeing sponge 9.

This device is supporting in the metering bin wireless load management terminal equipment being installed specially.

Wireless load management terminal is that power department is used for gathering the various electricity consumption data in the electric energy meter meter, and utilize radio signal with the data back master-control room of gathering, for different purposes, it has gate inhibition's function, its operating principle is: when the external K switch of gate inhibition's Enable Pin of wireless load management terminal, after the open and close state generation displacement of switch, terminal inner just writes down the displacement time one time, and uploads master-control room and report to the police.Therefore (can arbitraryly be set to often open, normally closed) can know accurately that door is out, still closes.Therefore use any switch to be contained in the bin body,, can both reach the open alarm function as long as the folding of door can make switch changed position.

Also there is gate inhibition's switch of tongue tube, travel switch etc. to sell on the existing market, but they all are to make certain solid shape, it is fixing to punch during installation, as will in the metering bin, using, do different supports according to different casees, cabinet, and the metering bin of power department is multifarious, install pretty troublesome, do not have any antitheft meter of offering yet,, all do not use this function because of this reason.

Agent structure: base of forming by strong self-adhesive 1, permanent magnet 23 and height regulating rod be expansion link 6 form the main body that can regulate height (because of the degree of depth of weigh box, cabinet different).

After Height Adjustment is good, use locking nut 5 with its locking.

The switch module of being made up of tongue tube 8 and magnetic shielding cover 7 is fixed on the top of height regulating rod, fixing more above dyeing sponge 9, and the connecting line 4 of dry-reed tube switch is drawn by base lower end special hole.

Tongue tube is a kind of special key of magnetosensitive, its two contacts are made by special material, be encapsulated in the glass tube of vacuum, need only magnet near it, its two contacts meeting displacements, just circuit turn-on (open type) or disconnections (closed type), this main body that tongue tube is housed is installed in the bin, place a permanent-magnet steel with the main body corresponding points on chamber door, magnet steel makes its displacement near dry-reed tube switch when door is shut.

Characteristics: contact and isolated from atmosphere, be filled with inert gas in the pipe, significantly reduced oxidation and charing that the spark of contact in the switching process causes like this.And having prevented the erosion of impurity docking points such as outside air, dust, the life-span is long, do not keep in repair, and therefore is particularly suitable in transformer station, place such as outdoor.

For the more effective pirate of the open door that prevents, therefore one magnetic shielding cover 7 is arranged in the outside of tongue tube,, when opening the door, have a slit because of differing of dry-reed tube switch action sensitivity to property and the certain magnetic force affluence degree of consideration, after can propping up a magnet and entering, make the dry-reed tube switch invariant position.After magnetic shielding cover 7 was arranged, magnetic force from the side was just inoperative to dry-reed tube switch.

Magnetic screen

The different two media of magnetic conductivity is placed in the magnetic field, and will undergo mutation in magnetic field on their interface, and at this moment the size and Orientation of magnetic field intensity B all will change, and that is to say, caused the refraction of magnetic induction line.For example, when magnetic induction line when air enters iron, magnetic induction line is very big to departing from of normal, therefore strong contraction.The cover of making as the soft magnetic materials that a magnetic conductivity is very big, be placed in the external magnetic field, because the magnetic conductance of soft magnetic materials is than big several thousand times of the magnetic conductivity of air, so the magnetic resistance of the magneto resistive ratio soft magnetic materials of cavity is much bigger, therefore most magnetic field lines pass through from the wall of case, and case in cavity in, magnetic induction line but seldom, this has just reached the effect of magnetic screen.

Install easily, because of the infield of weigh box much outdoor, the required working power of no electric tools, punching inconvenience.So general gate inhibition's switch be inconvenient to install (comprising the cabinet depth difference),, considers never displacement and other non-rigid material casing, so adopt the bonding dual mode of powerful viscose glue simultaneously so adopt the magnetic bases of permanent-magnet steel 2 on being bonded at the bottom of the case.

The effect of dyeing sponge 9 is the installation site of determining the door upper magnetic steel, and the diaphragm of viscose glue in the assembly is torn, and selects a smooth local and wiped clean in case, cabinet, above assembly being attached to again.Unclamp locking nut 5, cavernous body is dyeed a little more than doorframe in the top of height regulating rod, door is shut, open door again, a tangible stain is arranged on door, at this moment the door upper magnetic steel can be torn the viscose glue protection and touch, be attached on this aspect.Door is shut, opening door more just can be with locking nut screwing again.

Claims (6)

1, a kind of electric energy metrical bin entrance guard device is characterized in that: comprise, as the permanent magnet (10) that is fixed on the bin door; Be used for fixing the base (3) on the bin base plate, insert the expansion link (6) of base (3) inner chamber from the front portion, the expansion link front portion is set with one by permanent magnet (10) effect and the tongue tube (8) that is connected with the main website warning device; Also has the expansion link locking mechanism.

2, according to the described electric energy metrical bin of claim 1 entrance guard device, it is characterized in that: described base (3) front portion and expansion link (6) are pipe fitting; Be provided with magnetic shielding cover (7) in the anterior pipe of expansion link (6), be arranged in the magnetic shielding cover (7) in reed pipe (8) switch.

3, according to the described electric energy metrical bin of claim 2 entrance guard device, it is characterized in that: described expansion link locking mechanism is: locking nut (5) is screwed on the silk mouth of the anterior tube coupling of base (3).

4, according to the described electric energy metrical bin of claim 3 entrance guard device, it is characterized in that: the base plate of described base (3) is one as the fixing circular permanent magnet (2) of magnetic force absorption, and its diameter is greater than the diameter of the anterior tube coupling of base.

5, according to the described electric energy metrical bin of claim 4 entrance guard device, it is characterized in that: described permanent magnet (2) external surface also is fixed with a strong self-adhesive (1) that has been used for fixation; Be fixed with on the permanent magnet (10) and be used for strong self-adhesive bonding on door (11).

6, according to the described electric energy metrical bin of claim 5 entrance guard device, it is characterized in that: described expansion link (6) front end has been fixed with positioning mark effect dyeing sponge (9).

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