CN212181003U - Safe power-on reading device for disassembled single-phase electric energy meter - Google Patents
Safe power-on reading device for disassembled single-phase electric energy meter Download PDFInfo
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- CN212181003U CN212181003U CN202020657187.3U CN202020657187U CN212181003U CN 212181003 U CN212181003 U CN 212181003U CN 202020657187 U CN202020657187 U CN 202020657187U CN 212181003 U CN212181003 U CN 212181003U
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- 238000009434 installation Methods 0.000 abstract 1
- 206010014357 Electric shock Diseases 0.000 description 4
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Abstract
The utility model provides a tear back single-phase electric energy meter safety circular telegram reading device, including transparent casing, locate 2 deflectors and 2 splint in the casing, and be used for the circuit arrangement to single-phase electric energy meter circular telegram when using, 2 deflectors and 2 splint constitute the electric energy meter with the casing middle part together and place the storehouse, the casing is equipped with confined first and second electrical apparatus installation space in the front and back both sides before the storehouse is placed to above-mentioned electric energy meter, circuit arrangement includes power plug, switch, isolation transformer, the incandescent lamp, first and second travel switch, first and second DC power supply and first and second indicator lamp area, single-phase electric energy meter can automatic circular telegram so that the reading in placing the storehouse in the electric energy meter in during the use. The utility model discloses use convenient operation, improve work efficiency to can prevent effectively that personnel from electrocuting and install because of the emergence of electric energy meter short circuit fault burnout accident.
Description
Technical Field
The utility model relates to a power supply part reads the supplementary worker utensil field of electric energy meter registration, concretely relates to a device that is used for carrying out safe circular telegram reading to the single-phase electric energy meter of tearing back.
Background
The household single-phase electric energy meter is replaced due to old or new or failure, and the power supply part needs to electrify the disassembled electric energy meter so as to read the reading number of the electric energy meter as the basis of charging. To achieve this, a device for powering on the detached electric energy meter is needed, the current commonly used device is a simple device with one end being a plug, the other end being a wire clamp, the middle being a lead, and a leakage and overcurrent protection switch being connected in series on the lead, and the detached electric energy meter is powered on for reading, and the problems exist in that: because need use the terminal of fastener centre gripping single-phase electric energy meter during the operation, the operation is wasted time and energy the efficiency is not high, and operating personnel is direct to be AC220V alternating current, easily causes the electric shock because of the operation carelessly to if when having short-circuit fault in the single-phase electric energy meter of pulling back, the short circuit heavy current can cause the wire to burn out after the circular telegram, the fastener melts with electric energy meter terminal contact and splashes, not only makes the device damage, also brings serious threat for staff's personal safety. Therefore, it is necessary to develop a safer and more efficient device for reading the power-on state of the single-phase electric energy meter.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: to the problems existing in the prior art, the safe and efficient safe electrifying reading device for the single-phase electric energy meter is provided.
The technical scheme of the utility model is that: the utility model discloses a tear back single-phase electric energy meter safety circular telegram reading device, its structural feature is: the single-phase electric energy meter comprises a transparent shell, 2 guide plates arranged at the middle rear part of the shell, 2 clamping plates arranged at the left side and the right side of the middle part of the shell and a circuit device used for electrifying a single-phase electric energy meter when in use, wherein the 2 guide plates and the 2 clamping plates and the middle part of the shell form an electric energy meter placing bin; the first travel switch, the second travel switch and the first direct current power supply are fixedly arranged in a first electric appliance mounting space of the shell, and plunger rods of the first travel switch and the second travel switch extend out of the electric energy meter placing bin; the first indicator lamp strip and the second indicator lamp strip are fixedly arranged in the shell;
the power plug is electrically connected with the input end of the isolation transformer through the power switch, one terminal of the incandescent lamp is electrically connected with 1 output end of the isolation transformer, the other terminal of the incandescent lamp, one terminal of the first stroke switch and one terminal of the first direct-current power supply have a common contact, the other terminal of the first direct-current power supply, one terminal of the second stroke switch and the other 1 output end of the isolation transformer have a common contact, the two terminals of the second direct-current power supply are respectively and electrically connected with the other terminals of the first stroke switch and the second stroke switch, and the power supply ends of the first indicator light strip and the second indicator light strip are respectively and electrically connected with the power supply output ends of the first direct-current power supply and the second direct-current power supply; when the single-phase electric energy meter is used, the single-phase electric energy meter is arranged in the electric energy meter placing bin of the shell, and 2 wiring terminals of the single-phase electric energy meter are respectively in close contact with and electrically connected with the plunger rods of the first travel switch and the second travel switch.
The further scheme is as follows: the circuit device further comprises a fuse, and the fuse is electrically connected between the power plug and the power switch.
The further scheme is as follows: the shell comprises a bottom plate, 2 side plates, a front plate, a rear plate, a mounting plate, a front vertical plate, a front cover plate, a rear vertical plate and a rear cover plate; the bottom plate is arranged below the shell, the 2 side plates are fixedly arranged on the left side and the right side of the upper end of the bottom side, the front plate and the rear plate are respectively arranged at the front end and the rear end of the bottom plate and the 2 side plates and are vertically and fixedly connected with the front end and the rear end of the bottom plate and the 2 side plates, so that a box body structure with an opening at the upper end is formed by the bottom plate, the 2 side plates, the front plate and the rear plate, and the mounting plate is fixedly arranged in the box body structure and is positioned above;
the side plate is a special-shaped plate body member consisting of a front rectangular part positioned in front, a front trapezoidal part integrally connected with the rear end of the front rectangular part, a middle rectangular part integrally connected with the rear end of the front trapezoidal part, a rear trapezoidal part integrally connected with the rear end of the middle rectangular part and a rear rectangular part integrally connected with the rear end of the rear trapezoidal part, the front trapezoidal part and the rear trapezoidal part are arranged in a mirror image mode at the front end and the rear end of the middle rectangular part, and the structures of the 2 side plates are the same; the front vertical plate is fixedly arranged on the upper end surface of the front side of the mounting plate and is fixedly connected with the inner side of the rear end of the front rectangular part of the 2 side plates, the front cover plate is fixedly arranged on the front plate, the front rectangular part of the 2 side plates and the upper end surface of the front vertical plate, and a space formed by the front rectangular part of the 2 side plates, the front plate, the front vertical plate and the front cover plate forms a first electric appliance mounting space of the shell; 2 travel switch plunger rod through holes for the plunger rods of the first travel switch and the second travel switch to extend out of the electric energy meter placing bin are formed in the front vertical plate; the rear vertical plate is fixedly arranged on the upper end surface of the middle rear part of the mounting plate and is fixedly connected with the inner side of the front end of the rear rectangular part of the 2 side plates, the rear cover plate is fixedly arranged on the upper end surfaces of the rear rectangular part, the rear plate and the rear vertical plate of the 2 side plates, and a space formed by the rear rectangular part, the rear plate, the rear vertical plate and the rear cover plate of the 2 side plates forms a second electric appliance mounting space of the shell; on 2 above-mentioned deflectors divide left and right sides fixed locate the back riser of casing, both ends respectively with the left and right sides of the preceding riser rear end face of casing and the left and right sides fixed connection of the preceding terminal surface of back riser around 2 splint to the space that is located the middle part top of mounting panel, the rear end of preceding riser, the front end of 2 deflectors and the inboard of 2 splint and surrounds and form by the casing constitutes foretell electric energy meter and places the storehouse.
The further scheme is as follows: the length and width of the rectangular part of the side plate of the shell are smaller than those of the rear rectangular part, the width of the middle rectangular part is smaller than that of the front rectangular part, the length of the bottom edge of the front trapezoidal part is the same as that of the front rectangular part, and the length of the top edge of the front trapezoidal part is the same as that of the middle rectangular part.
The further scheme is as follows: the guide plate is a plate body with a narrow upper part and a wide lower part, and the clamping plate is a strip-shaped plate body.
The further scheme is as follows: the shell is a transparent acrylic plate with the thickness of 5 mm.
The further scheme is as follows: the isolation transformer is of a BK-50VA type.
The further scheme is as follows: the first travel switch and the second travel switch are both linear travel switches of type AZ 7310.
The further scheme is as follows: the incandescent lamp was a 40W power, 100 ohm cold resistance incandescent lamp.
The utility model discloses has positive effect: (1) the safe electrifying reading device of the disassembled single-phase electric energy meter of the embodiment, which is designed through the whole structure, can be used for reading the readings of the single-phase electric energy meter when the reading device is used, the operator only needs to put the disassembled single-phase electric energy meter into the electric energy meter placing bin after the power is switched on, the device can automatically electrify the single-phase electric energy meter, and then the reading of the electric energy meter can be read out from the electric energy meter placing bin. (2) The safe electrifying reading device of the disassembled single-phase electric energy meter can effectively avoid the electric shock risk of commercial power to the ground of an operator by arranging the isolation transformer at the front end of the circuit. (3) The safe electrifying reading device of the disassembled single-phase electric energy meter limits the fault current by arranging the incandescent lamp connected with the single-phase electric energy meter in series in the circuit and utilizing the reverse current resistance characteristic of the incandescent lamp, if the electric energy meter has short-circuit fault, the resistance of the incandescent lamp can be increased by dozens of times within hundreds of milliseconds, so that the short-circuit power supply is greatly reduced, the damage to the device and the human body can be avoided, and the normal test work can not be influenced. (4) According to the safe power-on reading device of the disassembled single-phase electric energy meter, elements in a circuit device are basically arranged in the shell made of acrylic materials which are high in insulating strength and transparent and easy to observe, no charged part of the device is exposed out of the shell, and the danger of electric shock caused by contact of operators is basically avoided. (5) The safe electrifying reading device of the single-phase ammeter disassembled in the embodiment is characterized in that different state indicating lamps are arranged in a circuit device, and an operator can easily observe and master the working state of the circuit outside the transparent shell, so that the safe electrifying reading device is convenient to operate.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic structural view of a side plate of the housing of FIG. 1, with 4 imaginary dashed lines added for the convenience of description of the embodiment;
fig. 4 is a block diagram schematically illustrating the structure of the circuit device according to the present invention, and the electrical connection relationship between the circuit device and the single-phase electric energy meter requiring power-on reading is also shown.
The reference numbers in the above figures are as follows:
the structure comprises a shell 1, a bottom plate 1-1, side plates 1-2, a front rectangular part 1-2-1, a front trapezoidal part 1-2-2, a middle rectangular part 1-2-3, a rear trapezoidal part 1-2-4, a rear rectangular part 1-2-5, a front plate 1-3, a rear plate 1-4, a mounting plate 1-5, a front vertical plate 1-6, a front cover plate 1-7, a rear vertical plate 1-8 and a rear cover plate 1-9;
the device comprises a guide plate 2, a clamping plate 3, a fuse 4, a power switch 5, an isolation transformer 6, an incandescent lamp 7, a first travel switch 8, a plunger rod 8-1, a second travel switch 9, a first direct current power supply 10, a first indicator light strip 11, a second direct current power supply 12, a second indicator light strip 13 and an electric energy meter placing bin 14.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
(example 1)
In the present embodiment, when describing the azimuth, the lower side of fig. 1 is taken as the front side in the description, the upper side of fig. 1 is taken as the rear side in the description, the direction in which fig. 1 faces is taken as the upper side in the description, the direction opposite to the direction of fig. 1 is taken as the lower side in the description, and the left-right direction of fig. 1 is still the left-right direction in the description.
Referring to fig. 1 to 4, the reading device for safely energizing a single-phase electric energy meter after being disassembled in this embodiment mainly comprises a housing 1 made of transparent acrylic plates, 2 guide plates 2 arranged at the middle and rear part in the housing 1, 2 clamping plates 3 arranged at the left and right sides of the middle part in the housing 1, and a circuit device arranged in the housing 1, wherein the circuit device mainly comprises a power plug (not shown and not numbered in fig. 1 and 2), a fuse 4, a power switch 5, an isolation transformer 6, an incandescent lamp 7, a first travel switch 8, a second travel switch 9, a first direct current power supply 10, a first indicator light strip 11, a second direct current power supply 12, and a second indicator light strip 13, wherein the fuse 4 is arranged as a preferred mode.
The shell 1 mainly comprises a bottom plate 1-1, 2 side plates 1-2, a front plate 1-3, a rear plate 1-4, a mounting plate 1-5, a front vertical plate 1-6, a front cover plate 1-7, a rear vertical plate 1-8 and a rear cover plate 1-9. The material of each plate of the shell 1 is preferably a transparent acrylic plate with the thickness of 5mm, the insulating strength is high, and the withstand voltage is more than 1000V.
The bottom plate 1-1 is arranged below the shell 1, the 2 side plates 1-2 are fixedly arranged on the left side and the right side of the upper end of the bottom side 1-1, the front plate 1-3 and the rear plate 1-4 are respectively arranged on the front end and the rear end of the bottom plate 1-1 and the front end and the rear end of the 2 side plates 1-2 and are vertically and fixedly connected with the front end and the rear end of the bottom plate 1-1 and the rear end of the 2 side plates 1-2, so that the bottom plate 1-1, the 2 side plates 1-2, the front plate 1-3 and the rear plate 1-4 form a box body structure with an opening at the upper end, and the mounting plate 1-5 is fixedly arranged.
Referring to fig. 3, 2 side panels 1-2 have the same structure, the side panel 1-2 is a shaped panel member composed of a front rectangular portion 1-2-1 located in front, a front trapezoidal portion 1-2-2 integrally connected to the rear end of the front rectangular portion 1-2-1, a middle rectangular portion 1-2-3 integrally connected to the rear end of the front trapezoidal portion 1-2-2, a rear trapezoidal portion 1-2-4 integrally connected to the rear end of the middle rectangular portion 1-2-3, and a rear rectangular portion 1-2-5 integrally connected to the rear end of the rear trapezoidal portion 1-2-4, the front rectangular portion 1-2-1 has a length and width smaller than those of the rear rectangular portion 1-2-5, the middle rectangular portion 1-2-3 has a width smaller than those of the front rectangular portion 1-2-1, the length of the bottom side of the front trapezoid part 1-2-2 is the same as the width of the front rectangular part 1-2-1, the length of the top side of the front trapezoid part 1-2-2 is the same as the width of the middle rectangular part 1-2-3, and the front trapezoid part 1-2-2 and the rear trapezoid part 1-2-4 are arranged in a mirror image mode at the front end and the rear end of the middle rectangular part 1-2-3.
The front vertical plates 1-6, the front cover plates 1-7, the rear vertical plates 1-8 and the rear cover plates 1-9 are all rectangular plate members; the front vertical plate 1-6 is fixedly arranged on the upper end surface of the front side of the mounting plate 1-5 and is fixedly connected with the inner side of the rear end of the front rectangular part 1-2-1 of the 2 side plates 1-2, the front cover plate 1-7 is fixedly arranged on the front plate 1-3, the front rectangular part 1-2-1 of the 2 side plates 1-2 and the upper end surface of the front vertical plate 1-6, the space surrounded by the front rectangular part 1-2-1 of the 2 side plates 1-2, the front plate 1-3, the front vertical plate 1-6 and the front cover plate 1-7 forms a first electrical appliance mounting space of the shell 1, 2 stroke switch plunger rod through holes are arranged on the front vertical plate 1-6, and power switch mounting holes are arranged on the front cover plate 1-7. The rear vertical plate 1-8 is fixedly arranged on the upper end surface of the middle rear part of the mounting plate 1-5 and is fixedly connected with the inner side of the front end of the rear rectangular part 1-2-5 of the 2 side plates 1-2, the rear cover plate 1-9 is fixedly arranged on the upper end surfaces of the rear rectangular part 1-2-5 of the 2 side plates 1-2, the rear plate 1-4 and the rear vertical plate 1-8, and the space surrounded by the rear rectangular part 1-2-5 of the 2 side plates 1-2, the rear plate 1-4, the rear vertical plate 1-8 and the rear cover plate 1-9 forms a second electrical appliance mounting space of the shell 1.
The guide plate 2 is a plate body with a narrow top and a wide bottom, the guide plate 2 is provided with 2 guide plates, the 2 guide plates 2 are fixedly arranged on rear vertical plates 1-8 of the shell 1 in a left-right mode, and the guide plates 2 are of a structure with a narrow top and a wide bottom, so that the single-phase electric energy meter can be conveniently put into and taken out of the shell. The splint 3 is rectangular form board spare, and splint 3 is equipped with 2, 2 splint 3's front end respectively with the left and right sides fixed connection of preceding riser 1-6 rear end face, 2 splint 3's rear end respectively with the left and right sides fixed connection of the preceding terminal surface of back riser 1-8 to the space that is located the middle part top of mounting panel 1-5, the rear end of preceding riser 1-6, 2 front ends of deflector 2 and 2 splint 3's inboard constitutes electric energy meter and places storehouse 14 in the casing 1.
In the circuit device, a power plug is arranged outside a shell 1 (not shown in fig. 1 and 2), a fuse 4 is fixedly arranged on a rear plate 1-4 of the shell 1 through a matched sleeve, a power switch 5 is fixedly arranged on a front cover plate 1-7 of the shell 1 in a matching way with a power switch mounting hole of the front cover plate 1-7, and an isolation transformer 6, an incandescent lamp 7 and a second direct current power supply 12 are fixedly arranged on the upper end surface of the mounting plate 1-5 and are positioned in a second electrical appliance mounting space of the shell 1; the first travel switch 8, the second travel switch 9 and the first direct current power supply 10 are fixedly arranged on the upper end surfaces of the mounting plates 1-5 and are positioned in a first electrical appliance mounting space of the shell 1; the first indicator light strip 11 and the second indicator light strip 13 are fixedly arranged on the upper end face of the bottom plate 1-1 of the shell 1 or the lower end face of the mounting plate 1-5. The first travel switch 8 is provided with a plunger rod 8-1, and plunger rods of the first travel switch 8 and the second travel switch 9 respectively extend from the plunger rods of the 2 travel switches of the front vertical plates 1-6 of the shell 1 to the electric energy meter placing bin 14 through holes.
In this embodiment, the isolation transformer 6 preferably employs a BK-50VA isolation transformer, the input and output are both AC220V, the incandescent lamp 7 employs an incandescent lamp with a power of 40W and a cold resistance of 100 ohms, the first travel switch 8 and the second travel switch 9 preferably employ a direct-current travel switch of AZ7310 model, the first indicator light strip 11 and the second indicator light strip 13 employ commercially available LED light strips, the first indicator light strip 11 emits blue light when energized, the second indicator light strip 13 emits red light when energized, and the first direct-current power supply 10 and the second direct-current power supply 12 both employ commercially available DC power supply modules of AC220V to DC 5V.
Referring to fig. 4, the power plug has 2 wires, wherein 1 wire is electrically connected to 1 input terminal of the isolation transformer 6 after passing through the fuse 4 and the power switch 5 in sequence, the other 1 wire of the power plug is electrically connected to the other 1 input terminal of the isolation transformer, one terminal of the incandescent lamp 7 is electrically connected to 1 output terminal of the isolation transformer 6, the other terminal of the incandescent lamp 7 has a common contact with one terminal of the first stroke switch 8 and one terminal of the first dc power supply 10, the other terminal of the first dc power supply 10, one terminal of the second stroke switch 9 and the other 1 output terminal of the isolation transformer 6, two terminals of the second dc power supply 12 are electrically connected to the other terminals of the first stroke switch 8 and the second stroke switch 9, respectively, and power supply terminals of the first indicator light strip 11 and the second indicator light strip 13 are electrically connected to power supply output terminals of the first dc power supply 10 and the second dc power supply 12, respectively And (6) electrically connecting.
In the circuit device, the electromotive force of the isolation transformer 1 is obtained by secondary induction, and does not form a loop with a primary side (forming a loop with the ground), so that an operator does not get an electric shock to the ground by the AC220V, and the isolation transformer 1 can reduce factors influencing the quality and stability of electric energy, such as inrush current and harmonic waves of an input end. A50W isolation transformer is selected as an isolation power supply, the power supply of a common household single-phase electric energy meter can be met, and the incandescent lamp 7 with the power of 40W can be supplied for a long time to normally work under the condition of short-circuit fault of the single-phase electric energy meter which needs to be electrified for reading. The incandescent lamp 7 is used as a current limiting device in a circuit, the current is limited by utilizing the reverse resistance characteristics (small cold resistance and high light-emitting state resistance) of the incandescent lamp 7 to current, the cold resistance of the incandescent lamp 7 is small (40W100 ohm), the voltage drop is small (51V), the reading error of the normal working voltage of the electric energy meter is +/-30%, no influence is caused, when the electric energy meter is in short circuit, the incandescent lamp 7 can emit light within hundreds of milliseconds, the resistance is increased (1210 ohm) by nearly 12 times, the short-circuit current is reduced to 0.18A at the moment, and the power is less than 4W, so that when the single-phase electric energy meter is in short circuit fault, the circuit is connected and disconnected, and electric sparks and electric.
The safe power-on reading device (hereinafter referred to as the device) of the disassembled single-phase electric energy meter of the embodiment has the following use method and principle:
after a power plug of the device is plugged with commercial power, the power switch 5 is closed, the circuit device is powered on, the first indicator light strip 11 is powered on and emits blue light, the shell 1 is completely transparent, an operator can conveniently observe that the device is powered on, the operator puts the disassembled single-phase electric energy meter into the electric energy meter placing bin 14 of the shell 1, 2 wiring terminals below the single-phase electric energy meter are respectively and closely attached to and electrically connected with plunger rods of the first travel switch 8 and the second travel switch 9 and press the plunger rods of the first travel switch 8 and the second travel switch 9 to do retraction action so as to electrically conduct the first travel switch 8 and the second travel switch 9, the single-phase electric energy meter is powered on, the operator can read the electric power value from the single-phase electric energy meter, and simultaneously the second direct-current power supply 12 is powered on so as to light the second indicator light strip 13 to emit red light to remind the operator of full circuit conduction, after the reading is finished, the single-phase electric energy meter is taken out from the electric energy meter placing bin 14, and then the next single-phase electric energy meter is placed for power-on reading. In the process of the power-on reading operation of the single-phase electric energy meter, if the single-phase electric energy meter has no short-circuit fault, the incandescent lamp 7 connected in series with the single-phase electric energy meter cannot be lightened, and if the single-phase electric energy meter has the short-circuit fault, the incandescent lamp 7 can emit light within hundreds of milliseconds, so that the short-circuit current in a loop is rapidly reduced, and the safety is ensured. The fuse 4 acts as a backup protection in the circuit in case of a fault in the isolating transformer 6.
The above embodiments are illustrative of the specific embodiments of the present invention, but not limiting to the present invention, and those skilled in the relevant art can also make various changes and modifications to obtain the equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should fall under the protection scope of the present invention.
Claims (9)
1. The utility model provides a tear single-phase electric energy meter safety circular telegram reading device back open which characterized in that: the single-phase electric energy meter comprises a transparent shell, 2 guide plates arranged at the middle rear part of the shell, 2 clamping plates arranged at the left side and the right side of the middle part of the shell and a circuit device used for electrifying a single-phase electric energy meter when in use, wherein the 2 guide plates and the 2 clamping plates and the middle part of the shell form an electric energy meter placing bin; the first travel switch, the second travel switch and the first direct current power supply are fixedly arranged in a first electric appliance mounting space of the shell, and plunger rods of the first travel switch and the second travel switch extend out of the electric energy meter placing bin; the first indicator lamp strip and the second indicator lamp strip are fixedly arranged in the shell;
the power plug is electrically connected with the input end of the isolation transformer through the power switch, one terminal of the incandescent lamp is electrically connected with 1 output end of the isolation transformer, the other terminal of the incandescent lamp, one terminal of the first stroke switch and one terminal of the first direct-current power supply are provided with a common contact, the other terminal of the first direct-current power supply, one terminal of the second stroke switch and the other 1 output end of the isolation transformer are provided with a common contact, the two terminals of the second direct-current power supply are respectively and electrically connected with the other terminals of the first stroke switch and the second stroke switch, and the power supply ends of the first indicator light strip and the second indicator light strip are respectively and electrically connected with the power supply output ends of the first direct-current power supply and the second direct-; when the single-phase electric energy meter is used, the single-phase electric energy meter is arranged in the electric energy meter placing bin of the shell, and 2 wiring terminals of the single-phase electric energy meter are respectively in close contact with and electrically connected with the plunger rods of the first travel switch and the second travel switch.
2. The device for reading the safely electrified single-phase electric energy meter according to claim 1, characterized in that: the circuit device further comprises a fuse electrically connected between the power plug and the power switch.
3. The device for reading the safely electrified single-phase electric energy meter according to claim 1, characterized in that: the shell comprises a bottom plate, 2 side plates, a front plate, a rear plate, a mounting plate, a front vertical plate, a front cover plate, a rear vertical plate and a rear cover plate; the bottom plate is arranged below the shell, the 2 side plates are fixedly arranged on the left side and the right side of the upper end of the bottom side, the front plate and the rear plate are respectively arranged at the front end and the rear end of the bottom plate and the 2 side plates and are vertically and fixedly connected with the front end and the rear end of the bottom plate and the 2 side plates, so that a box body structure with an opening at the upper end is formed by the bottom plate, the 2 side plates, the front plate and the rear plate, and the mounting plate is fixedly arranged in the box body structure and is positioned above;
the side plate is a special-shaped plate body member consisting of a front rectangular part positioned in front, a front trapezoidal part integrally connected with the rear end of the front rectangular part, a middle rectangular part integrally connected with the rear end of the front trapezoidal part, a rear trapezoidal part integrally connected with the rear end of the middle rectangular part and a rear rectangular part integrally connected with the rear end of the rear trapezoidal part, the front trapezoidal part and the rear trapezoidal part are arranged in a mirror image mode at the front end and the rear end of the middle rectangular part, and the structures of the 2 side plates are the same; the front vertical plate is fixedly arranged on the upper end surface of the front side of the mounting plate and is fixedly connected with the inner side of the rear end of the front rectangular part of the 2 side plates, the front cover plate is fixedly arranged on the front plate, the front rectangular part of the 2 side plates and the upper end surface of the front vertical plate, and a space formed by the front rectangular part of the 2 side plates, the front plate, the front vertical plate and the front cover plate forms a first electric appliance mounting space of the shell; 2 stroke switch plunger rod through holes used for the plunger rods of the first and second stroke switches to extend out of the electric energy meter placing bin are formed in the front vertical plate; the rear vertical plate is fixedly arranged on the upper end surface of the middle rear part of the mounting plate and is fixedly connected with the inner side of the front end of the rear rectangular part of the 2 side plates, the rear cover plate is fixedly arranged on the upper end surfaces of the rear rectangular part, the rear plate and the rear vertical plate of the 2 side plates, and a space formed by the rear rectangular part, the rear plate, the rear vertical plate and the rear cover plate of the 2 side plates forms a second electric appliance mounting space of the shell; on 2 the fixed back riser of locating the casing of 2 deflectors branch left and right sides, both ends respectively with the left and right sides of the preceding riser rear end face of casing and the left and right sides fixed connection of the preceding terminal surface of back riser around 2 splint to the space that forms is surrounded by the inboard of the middle part top that is located the mounting panel in the casing, the rear end of preceding riser, the front end of 2 deflectors and 2 splint constitutes the electric energy meter place the storehouse.
4. The detachable single-phase electric energy meter safety power-on reading device according to claim 3, characterized in that: the length and the width of the rectangular part of the side plate of the shell are smaller than those of the rear rectangular part, the width of the middle rectangular part is smaller than that of the front rectangular part, the length of the bottom edge of the front trapezoidal part is the same as that of the front rectangular part, and the length of the top edge of the front trapezoidal part is the same as that of the middle rectangular part.
5. The device for reading the safely electrified single-phase electric energy meter according to claim 1, characterized in that: the guide plate is a plate piece with a narrow upper part and a wide lower part, and the clamping plate is a strip-shaped plate piece.
6. The device for reading the safely electrified single-phase electric energy meter according to any one of claims 1 to 5, characterized in that: the shell is a transparent acrylic plate with the thickness of 5 mm.
7. The device for reading the safely electrified single-phase electric energy meter according to any one of claims 1 to 5, characterized in that: the isolation transformer is of a BK-50VA model.
8. The device for reading the safely electrified single-phase electric energy meter according to any one of claims 1 to 5, characterized in that: the first travel switch and the second travel switch are both straight travel switches of AZ7310 type.
9. The device for reading the safely electrified single-phase electric energy meter according to any one of claims 1 to 5, characterized in that: the incandescent lamp is a 40W power incandescent lamp with a 100 ohm cold resistance.
Priority Applications (1)
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| CN202020657187.3U CN212181003U (en) | 2020-04-26 | 2020-04-26 | Safe power-on reading device for disassembled single-phase electric energy meter |
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| CN202020657187.3U CN212181003U (en) | 2020-04-26 | 2020-04-26 | Safe power-on reading device for disassembled single-phase electric energy meter |
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| CN212181003U true CN212181003U (en) | 2020-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413659A (en) * | 2020-04-26 | 2020-07-14 | 国网江苏省电力有限公司常州供电分公司 | Safety power-on reading device for disassembled single-phase electric energy meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413659A (en) * | 2020-04-26 | 2020-07-14 | 国网江苏省电力有限公司常州供电分公司 | Safety power-on reading device for disassembled single-phase electric energy meter |
| CN111413659B (en) * | 2020-04-26 | 2024-07-02 | 国网江苏省电力有限公司常州供电分公司 | Safety power-on reading device for detachable single-phase electric energy meter |
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Granted publication date: 20201218 |