CN2184931Y

CN2184931Y - Anti-fraudulent use electricity device

Info

Publication number: CN2184931Y
Application number: CN 94208119
Authority: CN
Inventors: 王京联
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-04
Filing date: 1994-04-04
Publication date: 1994-12-07
Anticipated expiration: 2004-04-04

Abstract

The utility model discloses an electricity theft-proof device, which is composed of a casing, a power supply on-off parts, an electricity theft-proof electric cable, etc. The electricity theft-proof electric cable adopts the coaxial configuration, which causes the thief is difficult to thieve the electricity. The power supply on-off parts are composed of an on-off screw bolt, a casing, a star shape motion lever, contacts, and an elastic element. The cover plate of the casing is fixed on the on-off screw bolt, and the elastic element is arranged between the pi shape motion lever and the cross beam of the casing. If the on-off screw bolt is loosened, the upper contact is not contacted with the lower contact under the function of the elastic element, and the user has no power. Simultaneously, an alarming device sends out the alarm to suggest that the electricity is thieves. The utility model has the advantages of simple structure, low cost, and good effect of electricity theft proof.

Description

Anti-fraudulent use electricity device

The utility model relates to a kind of anti-electricity-theft device.

Along with expanding economy, the popularizing of all kinds of electrical appliances, the increase of user power utilization amount, electricity filching person is showed increased also, and especially in rural area vast in territory, the stealing situation is on the rise.In order to prevent stealing, there are many entity and individual to design various anti-electricity-theft devices at present, but because the device of design is not the circuit complexity, make difficulty, cost height, not easy-maintaining, be exactly that structure is too simple, do not have anti-stealing electricity function, thereby can't promote the use of.

The purpose of this utility model provides a kind of simple in structure, and is easy to manufacture, easy to maintenance, and can effectively prevent the anti-electricity-theft device of stealing.

The purpose of this utility model is achieved through the following technical solutions.A kind of anti-electricity-theft device, by shell, on/off parts and anti-electricity-theft cable are formed, shell is made up of base and cover plate, ammeter and on/off parts are installed on the base, after covering cover plate, ammeter and on/off parts are sealed in the enclosure, anti-electricity-theft cable is connected on the input end of ammeter, the on/off parts are by housing, the break-make bolt, the contact, compositions such as ∏ type carriage release lever and flexible member, the cover plate of shell is bolted on the housing of on/off parts by break-make, one flexible member is housed between the crossbeam of ∏ type carriage release lever and housing, the innermost layer of anti-electricity-theft cable is a plain conductor, skin at lead is an insulation course, and the skin of insulation course is an elastic conducting layer, and outermost layer is an insulation course.

The big shape in little two in the middle of the break-make bolt is, the major part at two ends all has the screw thread that connects with housing.Can accompany the fire-retardant flexible glue of one deck between elastic conducting layer and insulation course, elastic conducting layer is to be wound on fire-retardant flexible glue skin by the metal material helically.

Owing to adopted technique scheme, make the following advantage that the utlity model has: simple in structure, easy to manufacture, with low cost, not consuming electric power, easy to maintenance, especially the general electrician in rural area can both keep in repair, and anti-electricity-theft cable theft-proof is good, good rigidity, live wire is difficult for aging, long service life, and can prevent stealing effectively.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model on/off parts.

Fig. 2 is an A-A cut-open view of the present utility model.

Fig. 3 is a structural representation of the present utility model.

Fig. 4 is an anti-electricity-theft construction of cable synoptic diagram of the present utility model.

Fig. 5 is the block scheme of the utility model wiring.

From Fig. 1, Fig. 2, Fig. 3, Fig. 4 as can be known, the utility model is by shell 12, on/off parts 16, and anti-electricity-theft cable 17 is formed.Shell 12 is made up of base 15 and cover plate 2, have one on the cover plate 2 and look table window 13, ammeter 14 and on/off parts 16 are installed on the base 15, anti-electricity-theft cable 17 is connected on the input end of ammeter 14, makes ammeter 14, on/off parts 16 and all wiring contacts all be enclosed in the inside of shell 12 after covering cover plate 2.Cover plate 2 is fixed on the housing 3 of on/off parts 16 by break-make bolt 1.On/off parts 16 are made up of break-make bolt 1, housing 3, ∏ type carriage release lever 5, contact 7 and flexible member 4 etc., contact 7 is fixed on the interface of ∏ type carriage release lever 5 and metal carriage release lever 8, ∏ type carriage release lever 5 and metal carriage release lever 8 all are contained in the conduit 10, and can slide up and down, one flexible member 4 is housed between the crossbeam 23 of ∏ type carriage release lever 5 and housing 3, one side of conduit 10 have one with the corresponding guide groove 11 of contact 7 width so that slide with the slip of ∏ type carriage release lever 5 in contact 7.Anti-electricity-theft cable 17 is made up of plain conductor 18, insulation course 19,22, fire-retardant flexible glue 20, elastic conducting layer 21, innermost layer is a plain conductor 18, be connected on the live wire of ammeter 14, the skin of plain conductor 18 is insulation courses 19, prevent live wire and earth short, the skin of insulation course 19 has the fire-retardant flexible glue 20 of one deck, elastic conducting layer 21 is skins that helically is wound on fire-retardant flexible glue 20, to strengthen rigidity and elasticity, elastic conducting layer 21 is to be connected on the ground wire of ammeter 14, outermost layer also is an insulation course 22, to prevent electric shock.Its principle of work and anti-stealing electricity function are as follows:

The wiring circuit of each parts of the present utility model as shown in Figure 5 is by Fig. 3, Fig. 4 its principle of work and anti-stealing electricity function as can be known.Anti-electricity-theft cable 17 is connected on the input end of ammeter 14, the live wire of ammeter 14 output terminals is connected on the contact 7 of on/off parts 16, ground wire is directly exported, and warning device is connected on the upper contact 6 of on/off parts 16, and user's live wire is connected on the lower contact 9 of on/off parts 16.When break-make bolt 1 is fixed on cover plate 2 on the housing 3 of on/off parts 16, because break-make bolt 1 is toward pressing down, make ∏ type carriage release lever 5 and metal carriage release lever 8 toward lower slider, and drive contact 7 also toward lower slider, make contact 7 and lower contact 9 engagements, thereby the live wire of connecting subscribers participating, this state are exactly the user normally uses electricity condition, just the normal operating conditions of on/off parts 16.Because anti-electricity-theft cable 17 adopts coaxial configurations, electricity filching person is difficult for stealing, if think stealing, must carry out extensive damage to anti-electricity-theft cable 17, just can go smoothly, and can not restore, and power supply department or other users can differentiate its whether stealing at a glance.If electricity filching person wants to open shell 12 stealing internally, just must open cover plate 2, because cover plate 2 is to be fixed on the housing 3 of on/off parts 16 by break-make bolt 1, open cover plate 2, must unclamp break-make bolt 1, in case unclamp break-make bolt 1, under the elastic force effect of the crossbeam 23 of housing 3 and the flexible member 4 between the ∏ type carriage release lever 5, upwards sliding in contact 7, disconnects with lower contact 9, connects with upper contact 6, at this moment, the live wire of user's live wire and ammeter 14 disconnects, and the user is just outage also, and connects with warning device, hummer gives the alarm, to show user's stealing, be convenient to user's supervision on every side, this state also is referred to as the stealing state.

Resilient contact is all adopted in each contact of on/off parts 16, to eliminate contact sparking, keeps conducting good for a long time, prolongs its serviceable life.

The utility model also is applicable to three-phase kilowatt-hour meter.

Claims

1, a kind of anti-electricity-theft device, comprise ammeter 14 is installed its inner shell 12, on/off parts 16 and anti-electricity-theft cable 17, shell 12 is made up of base 15 and cover plate 2, ammeter 14 and on/off parts 16 are installed on the base 15, anti-electricity-theft cable 17 is connected on the input end of ammeter 14, it is characterized in that, described on/off parts 16 are by break-make bolt 1, housing 3, ∏ type carriage release lever 5, compositions such as contact 7 and flexible member 4, the cover plate 2 of shell 12 is fixed on the housing 3 of on/off parts 16 by break-make bolt 1, one flexible member 4 is housed between the crossbeam 23 of ∏ type carriage release lever 5 and housing 3, the innermost layer of described anti-electricity-theft cable 17 is plain conductors 18, skin at plain conductor 18 is an insulation course 19, and the skin of insulation course 19 is elastic conducting layers 21, and outermost layer is an insulation course 22.

2, anti-electricity-theft device as claimed in claim 1 is characterized in that, the big shape in little two in the middle of described break-make bolt 1 is, and the major part at two ends all has the screw thread that connects with housing 3.

3, anti-electricity-theft device as claimed in claim 1 or 2 is characterized in that, can accompany the fire-retardant flexible glue 20 of one deck between elastic conducting layer 21 and insulation course 19, and elastic conducting layer 21 is the skins that are wound on fire-retardant flexible glue 20 by the metal material helically.