CN2284286Y

CN2284286Y - Rainproof 3-phase power metering protecting box with concealed door

Info

Publication number: CN2284286Y
Application number: CN 97201873
Authority: CN
Inventors: 刘顺红
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-20
Filing date: 1997-03-20
Publication date: 1998-06-17
Anticipated expiration: 2007-03-20

Abstract

The utility model relates to a box-type apparatus for installing a low-voltage three-phase power metering device. The utility model has the function of rain erosion resistance, man-made breaking resistance. A hexahedral box body is formed by a box door, a cover plate, a side plate, a bottom plate and a back plate. The cover plate of the box body arranged in an inclined way is protruded form the right and left sides and the front side, so as to form a three-surface rain shading eave. A door bolt and a door shaft are both positioned on the inner side of the box door. A built-in cassette is arranged on the side plate of the box body at the side near the door bolt. The box door is locked and sealed by lead in the built-in cassette, and a built-in lock is arranged on a door of the built-in cassette. A shutter is arranged on the other side plate of the box body. The upper ends of the shutter and the built-in cassette are respectively provided with a rain shading cover. A ventilation hole and a wire lead hole are arranged on the bottom plate.

Description

Concealed door, rain-proof type low pressure three-phase power metering guard box

The utility model relates to a kind of box-type equipment of installing low pressure three-phase power gauge table meter, the box-type equipment that particularly relate between a kind of 0.4kV of being installed in three-phase alternating current distribution transformer secondary outlet and the user power utilization equipment, is used for the protection of voltameter scale meter and manages.

The electric metering box of present domestic town and country industrial and mineral enterprise and institution and resident living area extensive use, because the hinge and the door lock of chamber door expose, box sealing is not tight, the ability of anti-rain erosion and anti-artificial destruction is low, the time of coming into operation is long hinge and door lock corrosion promptly takes place or by sledge, door-plate is damaged even come off phenomenons such as casing water inlet, electric leakage.Large quantities of weigh boxs perform practically no function, and cause the stealing case to happen occasionally, and line loss per unit is high, are difficult to satisfy the demand of novel electricity bill control system.

The purpose of this utility model provides a kind of anti-rain erosion that has, and anti-artificial destruction is adapted to " copy, examine, receive " novel electricity bill control system, helps improving management of power use level, reduces line loss, the electric metering box of simple and practical and standard.

The utility model is achieved in that by chamber door, cover plate, side plate, base plate and backboard and constitutes the hexahedron casing.Chamber door is an implicit form.Cover plate tilts to install, and protrudes with anterior both sides to the left and right with respect to its underpart casing, forms three and hides the rain eaves.Left side plate one side has shutter, and opposite side is provided with camera obscura.Have gravity vent and fairlead on the base plate.

Chamber door is connected with casing by the door-hinge of hiding, and the door nose is installed on the chamber door inboard, has lead seal hole and lockhole on the door nose.

Cover plate is inclined relative to horizontal angle [alpha]=2～10 °, protrudes and is not less than 20mm in both sides to the left and right with respect to its underpart casing, protrudes to the front portion to be not less than 30mm.

Camera obscura is located on the side plate near door nose one side of described chamber door, and a nose jack is arranged on the camera obscura, near door nose jack one side jam plate is arranged in the camera obscura, has lead seal hole and lockhole on the jam plate, and is corresponding with lead seal hole and lockhole on the door nose.On the door of camera obscura built-in lock is housed.

The upper end of shutter and camera obscura is provided with rain cover.

Have installing hole on the backboard.

Stealthy door structure makes easy-to-rust, destructible parts such as door-hinge, door lock, door nose all be built in the casing, and the chamber door external surface does not also have any exposed parts and chamber door signs such as door handle.Active electric energy meter and reactive energy-meter are installed on the interior instrument panel of case, and wiring is drawn by the fairlead that is located at the weigh box bottom, can avoid rainwater to flow in the case along cable, cause internal corrosion.After chamber door was closed, the door nose that is arranged in the chamber door back inserted the jack of camera obscura, in camera obscura chamber door is locked.When chamber door need be opened, must open the inside and outside two pass door lock of camera obscura, push away from inside to outside and open.But the screening rain eaves double as casing spanner on camera obscura door and the shutter.Casing can directly be anchored on the line bar.These characteristics has improved the ability of anti-natural force of weigh box and artificial destruction effectively, has prolonged application life.

After the person of checking meter is finished observational record by observation port, open the camera obscura external door, record is placed in the camera obscura, wait until the usefulness that nuclear table person checks.Have nuclear table person only and have inside and outside control of twin-lock of camera obscura and sealing up and Kaifeng power of meter meter lead sealing simultaneously, for be adapted to " copy, examine, receive " novel electricity bill control system, the enforcement supervision mechanism provides hardware condition.

Fig. 1 is the three-dimensional general assembly drawing of an embodiment of the present utility model.

Fig. 2 is the elevation of this embodiment.

Fig. 3 is the lateral view of this embodiment.

As shown in the figure, electric metering box constitutes the hexahedron casing by chamber door (1), left plate (18), cover plate (4), right plate (5), base plate (14) and backboard (16).Casing partly adopts the 1.5mm steel plate through cutting out, roll up and being welded.Be provided with an ammeter installing plate (3) in the casing.The cover plate of casing (4) is inclined relative to horizontal angle [alpha]=2～10 °, with respect to its underpart casing both sides and front portion (reveal) outstanding respectively b＞20mm and 1＞30mm to the left and right, forms three screening rain eaves.Chamber door (1) surface no any visual part except that 4 observation ports (22).Have shutter (2) on the left plate (18), right plate (5) is provided with camera obscura (9), and built-in lock (10) is housed on the camera obscura door (11), and the upper end of shutter (2) and camera obscura (9) is respectively equipped with a rain cover (23) and (6).Have gravity vent (15), fairlead (13) and (17) on the base plate (14).Backboard has installing hole on (16).Have lead seal hole (19) and lockhole (21) on the door nose (20), when chamber door (1) when closing, in the door nose jack (12) on door nose (20) the insertion camera obscura (9), lead seal hole (19) on door nose (20) and lockhole (21) respectively with camera obscura (9) in lead seal hole (7) and lockhole (8) identical, can in camera obscura (9), chamber door be locked and lead sealing, door lock, lead sealing and door-hinge all are positioned within the casing, do not expose.Chamber door is not established door handle on (1), can only push open outside camera obscura (9) is introversive.

Claims

1, a kind of low pressure three-phase power weigh box constitutes the hexahedron casing by chamber door, cover plate, side plate, base plate and backboard; It is characterized in that: chamber door is an implicit form; Cover plate tilts to install, and protrudes with anterior both sides to the left and right with respect to its underpart casing, forms three and hides the rain eaves; Left side plate one side has shutter, and opposite side is provided with camera obscura; Have gravity vent and fairlead on the base plate.

2, electric metering box according to claim 1 is characterized in that described chamber door is connected with casing by the door-hinge of hiding, and the door nose is installed on the chamber door inboard, has lead seal hole and lockhole on the door nose.

3, electric metering box according to claim 1 is characterized in that described cover plate is inclined relative to horizontal angle [alpha]=2～10 °, protrudes and is not less than 20mm in both sides to the left and right with respect to its underpart casing, protrudes to the front portion to be not less than 30mm.

4, electric metering box according to claim 1, it is characterized in that described camera obscura is located on the side plate near door nose one side of described chamber door, a nose jack is arranged on the camera obscura, near door nose jack one side jam plate is arranged in the camera obscura, have lead seal hole and lockhole on the jam plate, corresponding with lead seal hole and lockhole on the door nose; On the door of camera obscura built-in lock is housed.

5, electric metering box according to claim 1 is characterized in that the shutter on the described side plate and the upper end of camera obscura are provided with rain cover.

6, electric metering box according to claim 1 is characterized in that having installing hole on the described backboard.