CN218586837U - Uninterrupted replacing device for electric energy meter - Google Patents
Uninterrupted replacing device for electric energy meter Download PDFInfo
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- CN218586837U CN218586837U CN202222908338.XU CN202222908338U CN218586837U CN 218586837 U CN218586837 U CN 218586837U CN 202222908338 U CN202222908338 U CN 202222908338U CN 218586837 U CN218586837 U CN 218586837U
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Abstract
The utility model discloses a device for replacing an electric energy meter without power outage, which carries out the meter replacing operation of the three-phase electric energy meter without power outage through a meter replacing instrument and a deconcentrator, wherein the meter replacing instrument comprises a box body, a short-end, an alternating current contactor, a control panel, an on-off indicator lamp and a self-locking switch; the control panel is connected with the alternating current contactor, the on-off indicator lamp and the self-locking switch circuit; the short-circuit end is connected with the alternating current contactor circuit, and a contact connected with the control board is arranged between the short-circuit end and the alternating current contactor circuit; the short-circuit end is connected with the deconcentrator to be connected with the power line in parallel, the controller detects the connection condition, the on-off indicator lamp directly shows the on-off state, the self-locking switch is used for starting the AC contactor to be closed, the power line is in short circuit, and the working personnel can carry out uninterrupted electric energy meter replacement operation; need not to require to install parts such as connector in advance in the ammeter case, can install the deconcentrator additional on the power cord and carry out follow-up table operation of trading under the uninterrupted power supply prerequisite, have and can be applied to ordinary ammeter case, realize that the three-phase ammeter does not have the advantage of power failure and changes.
Description
Technical Field
The utility model relates to a power equipment technical field, especially a change device that does not have a power failure for electric energy meter.
Background
With the development of national economy and the improvement of the living standard of people, the requirements of various users on the power supply reliability are higher and higher. To improve the reliability of power supply, the power failure must be reduced, so that the uninterrupted operation becomes a very important work content of national power grids and southern power grids. The development of marketing metering uninterrupted operation is one of the most direct and effective measures for improving power supply reliability, various metering abnormal conditions such as black screen, screen splash, dead halt, communication faults and the like easily occur along with the long service life of a large number of electronic three-phase electric energy meters and the aging of electronic components, the metering of electric energy cannot be accurately carried out, and timely replacement and batch periodic rotation are required.
The traditional electric energy meter replacement mode is carried out in a power failure mode, the work flow comprises 7 steps of posting bulletins, recording bottom reading of the electric energy meter, informing users, power failure, meter disassembling and assembling, checking and verifying, power transmission and the like, the defects of multiple power failure disassembling and assembling steps, long consumed time and the like exist, and the normal power utilization of a three-phase power supply large user is influenced to a great extent.
The conventional patent CN108445268a discloses a device for replacing a three-phase electric energy meter without power outage, which comprises a wiring port converter, a multifunctional comprehensive wire connector and a short connector, wherein the short connector is inserted into the multifunctional comprehensive wire connector, one end of the wiring port converter is inserted into the three-phase electric energy meter, the other end of the wiring port converter is connected with the multifunctional comprehensive wire connector, and then the short connector is pulled out, so that the three-phase electric energy meter can be replaced without power outage; the uninterrupted replacing device of the three-phase electric energy meter converts the uncharged jack of the pulled-out electric meter into the uncharged plug, so that the multifunctional comprehensive wire connector only has the charged jack, and the operation safety is greatly improved; providing a safe table-changing uninterrupted short-circuit structure; and the short circuit function of each phase is reliably realized by matching with the multifunctional comprehensive wire connector.
However, in the patent, a multifunctional comprehensive connector is required to be additionally arranged in an electric meter box in advance, and then a three-phase electric meter is installed on the multifunctional comprehensive connector through a connector port converter, so that the electric meter box is required to be provided with the multifunctional comprehensive connector in advance and is connected with the multifunctional comprehensive connector, and for the electric meter box which does not have the multifunctional comprehensive connector, the multifunctional comprehensive connector cannot be replaced without power outage naturally; namely, the application has limited application scenes, and cannot be directly applied to common electric meter boxes which are already put into use at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a change device that does not have a power failure for electric energy meter. The utility model has the advantages of can be applied to ordinary ammeter case, realize that the three-phase ammeter does not have a power failure and changes.
The technical scheme of the utility model: a uninterrupted replacing device for an electric energy meter comprises a meter replacing instrument and a plurality of deconcentrators; the meter changing instrument comprises a box body, a plurality of short-circuit ends arranged at the top of the box body, an alternating current contactor arranged at the upper part in the box body, a control board arranged at the lower part in the box body, a plurality of on-off indicating lamps arranged on the box body and a self-locking switch; the control panel is respectively connected with the alternating current contactor, the on-off indicator lamp and the self-locking switch circuit; the short-circuit end is connected with the alternating current contactor circuit, and a contact connected with the control panel is arranged between the short-circuit end and the alternating current contactor.
In the uninterrupted power supply replacement device for the electric energy meter, each deconcentrator comprises two corresponding splicing block bodies, a deconcentration inserting platform connected with the short-end is arranged on the top of each block body in a protruding mode, and a wire slot for allowing a power line to pass through, a wiring board arranged above the wire slot and a puncture screw arranged above two ends of the wiring board are arranged in each block body; a plurality of corresponding operation holes are formed in the block body.
In the uninterrupted power supply replacement device for the electric energy meter, a connection hole corresponding to the branching and plugging platform and used for connecting with the short-circuit end is formed in the wiring board; the operation holes respectively correspond to the connecting holes and the puncture screws.
In the uninterrupted power supply replacement device for the electric energy meter, a wire clamping ring is arranged at the front end of the block body, and a plurality of pressing lugs for fixing a power line are distributed on the inner wall of the wire clamping ring; the outside of the wire clamping ring is provided with a hose clamp.
In the uninterrupted power supply replacement device for the electric energy meter, the front end and the rear end of the block body are provided with the convex clamping blocks, the clamping block of the block body on the left side is the outer clamping block, the clamping block of the block body on the right side is the inner clamping block, and the outer clamping block and the inner clamping block are staggered with each other; the outer side of the inner clamping block is provided with a circular clamping protrusion, and the outer clamping block is provided with a buckle corresponding to the clamping protrusion.
In the uninterrupted power supply replacement device for the electric energy meter, the short-circuit end comprises a connecting wire, a sleeve sleeved on the connecting wire, a plug arranged at the tail end of the sleeve and a short joint rotatably arranged at the bottom of the plug; the short joint is communicated with the connecting line; the short joint is connected with the connecting hole through a threaded structure; the plug is correspondingly clamped with the operation hole on the branching insertion table.
In the uninterrupted power supply replacement device for the electric energy meter, the puncture screw comprises an insulating screw at the upper part, a puncture head fixed below the insulating screw, and a compression spring sleeved on the insulating screw.
Compared with the prior art, the utility model discloses the utilization is traded table appearance and deconcentrator and is carried out the operation of trading the table without power failure, it is by the box body to trade the table appearance, the short circuit end, ac contactor, the control panel, break-make pilot lamp and self-locking switch constitute, it is parallelly connected to utilize the short circuit end to link to each other the realization on every power cord that corresponds with the deconcentrator, then detect whether the switch-on through the controller circuit, by the break-make pilot lamp direct indication and connect the switch-on condition, make things convenient for the staff direct conclusion that draws, it is normal when each way connection, can start ac contactor closure through pressing self-locking switch, make three routes phase line in the power cord and the short circuit of the central line business turn over line all the way, at this moment, the staff just can carry out the electric energy meter change operation that does not have power failure.
By adopting the method, components such as a wire connector and the like do not need to be required to be pre-installed in the ammeter box, a deconcentrator can be additionally installed on a power line by a worker on the premise of directly not stopping the power supply, then a short-circuit end is connected with a power line corresponding to the deconcentrator in parallel, and finally the meter replacing instrument performs short-circuit to perform meter replacing operation without stopping the power supply; the method can be applied to the replacement of almost all three-phase electric energy meters, and has a wide application range;
the meter changing instrument is designed to be minimum in size on the premise of ensuring current load, unnecessary structures are reduced, then light components such as a self-locking switch are adopted, the weight is reduced as much as possible, and the meter changing instrument is convenient to carry; moreover, the volume and the weight are light, so that the electric meter box can be conveniently placed in the electric meter box or hung in the air during operation, and the electric meter box does not need to be held by a worker all the time, so that the electric meter box is convenient for the worker to operate;
the whole meter replacing instrument is designed through a modular structure, and a control panel, an alternating current contactor, a self-locking switch, an on-off indicating lamp and the like of the meter replacing instrument are standard parts with certain specifications, so that the meter replacing instrument is convenient to assemble and replace parts for maintenance.
Therefore, the utility model has the advantages of can be applied to ordinary ammeter case, realize that the three-phase ammeter does not have the power failure and changes.
Drawings
FIG. 1 is a schematic structural view of the meter changing instrument of the present invention;
FIG. 2 is a schematic view of the internal structure of the meter changing instrument of the present invention;
FIG. 3 is a circuit diagram of the change meter;
FIG. 4 is a split view of the wire distributor of the present invention;
FIG. 5 is a schematic structural view of the junction box of the present invention connected to the shorting end;
fig. 6 is an internal cross-sectional view of the wire distributor of the present invention.
The labels in the figures are: 1-short-end, 11-sleeve, 12-plug, 13-short-joint, 2-on-off indicator light, 3-self-locking switch, 4-alternating current contactor, 5-control board, 6-wire distributor, 61-block, 62-wire distribution platform, 63-operation hole, 64-clamping block, 65-clamping projection, 66-buckle, 67-wire groove, 68-clamping ring, 69-pressing projection, 7-wiring board, 8-piercing screw, 81-insulating screw, 82-piercing head, 83-compression spring and 9-power line.
Detailed Description
The present invention will be further described with reference to the drawings and examples, which should not be construed as a limitation to the present invention.
Examples are given. A non-power-off replacing device for an electric energy meter is shown in figures 1-2 and comprises a meter replacing instrument and at least eight deconcentrators 6; the meter changing instrument comprises a box body made of insulating materials, eight short-end terminals 1 arranged at the top of the box body, an alternating current contactor 4 arranged at the upper part in the box body, a control board 5 arranged at the lower part in the box body, four on-off indicating lamps 2 arranged on the box body and a self-locking switch 3;
as shown in fig. 3, a control board 5 is respectively connected with an ac contactor 4, an on-off indicator lamp 2 and a self-locking switch 3 to realize a control loop; the short-circuit end 1 is in circuit connection with the alternating current contactor 4, and a contact connected with the control board 5 is arranged between the short-circuit end 1 and the alternating current contactor 4;
the miniature relay is additionally arranged on the contact, so that the contact is closed only under the condition that the puncture connection of each channel is normal, and misoperation is prevented.
The box body can be made of ABS engineering plastics, PC or other common insulating materials.
The four on-off indicator lamps 2 are respectively used for directly confirming the connection state of the A, B, C, N phase short-circuit end, and the next operation is convenient to carry out.
The self-locking switch 3 is matched with the alternating current contactor 4 for use to replace a traditional air switch, and the on-off of the switch is convenient and labor-saving.
As shown in fig. 4, each wire distributor 6 comprises two corresponding splicing block bodies 61, a wire distributing platform 62 connected with the short-end 1 is convexly arranged on the top of each block body 61, and a wire slot 67 used for passing through a power wire 9, a wiring board 7 arranged above the wire slot 67 and a piercing screw 8 arranged above two ends of the wiring board 7 are arranged in each block body 61; the block body 61 is provided with three corresponding operation holes 63 which correspond to the puncture screws 8 and the shorting end 1 respectively and are used for installing the shorting end 1 and adjusting the puncture screws 8 through a screwdriver.
A connecting hole which corresponds to the branching insertion table 62 and is used for connecting the short-circuit end 1 is formed in the wiring board 7; the operation holes 63 correspond to the connection holes and the piercing screws 8, respectively.
A wire clamping ring 68 is arranged at the front end of the block body 61, and six pressing lugs 69 for fixing the power wire 9 are distributed on the inner wall of the wire clamping ring 68; a throat hoop is provided outside the clip 68 for fastening the clip 68.
As shown in fig. 4 and 5, the front end and the rear end of the block body 61 are provided with the protruded fixture blocks 64, the fixture block 64 of the left block body 61 is an outer fixture block, the fixture block 64 of the right block body 61 is an inner fixture block, and the outer fixture block and the inner fixture block are staggered; a circular clamping protrusion 65 is arranged on the outer side of the inner clamping block, and a buckle 66 corresponding to the clamping protrusion 65 is arranged on the outer clamping block; the structure of the clamping block 64, the clamping protrusion 65 and the clamping buckle 66 enables the two block bodies 61 to be quickly detached and assembled, and the use is convenient.
As shown in fig. 4 and 6, the short-end 1 comprises a connecting line, a sleeve 11 sleeved on the connecting line, a plug 12 rotatably arranged at the tail end of the sleeve 11 and a short joint 13 rotatably arranged at the bottom of the plug 12; the short joint 13 is connected with the connecting line to form a passage, and the short joint 13 is connected with the connecting hole through a thread structure; the plug 12 is correspondingly clamped with the operation hole 63 on the branching and inserting table 62, so that installation is realized.
As shown in fig. 6, a through hole corresponding to the piercing screw 8 is formed on the wiring board 7, so that the piercing screw 8 can be conveniently connected with the power line 9; the puncture screw 8 comprises an insulating screw 81 at the upper part, a puncture head 82 fixed below the insulating screw 81 and a compression spring 83 sleeved on the insulating screw 81, the puncture head 82 is pressed down or lifted by rotating the insulating screw 81, and when the puncture head is pressed down to a certain degree, the puncture head punctures the insulating sleeve of the power cord 9 and is communicated with the internal circuit; the compression spring 83 prevents the insulating screw 81 from being excessively tightened to cause damage to the power cord 9.
The working principle is as follows:
each deconcentrator 6 is arranged on each corresponding power line 9, the two bodies 61 are clamped to clamp the power lines 9, then the short-end 1 is connected to the corresponding deconcentrator 6, and the plug 12 is inserted into an operation hole 63 on the deconcentrator insert table 62 and then is rotated to clamp the plug;
an insulated screwdriver is used for penetrating and screwing an insulated screw 81 from the operation hole 63, and a puncture head 82 punctures the power line 9 in the downward screwing process, so that the short-end 1 is connected with the power line 9 in parallel;
when the connection of each path is normal, the self-locking switch 3 is pressed, the alternating current contactor 4 is closed, the short circuit of three phase lines and one central line inlet and outlet line is realized, a user detaches the old three-phase electric energy meter and then replaces the old three-phase electric energy meter with a new one, and the operation of replacing the electric energy meter without power outage is realized.
After the operation is finished, the self-locking switch 3 is pressed, the power line 9 is connected again, then the puncture screw 8 is screwed up, and the meter replacing instrument and the deconcentrator 6 are respectively dismounted according to the steps.
Claims (7)
1. The utility model provides a change device that does not have a power failure for electric energy meter which characterized in that: comprises a meter changing instrument and a plurality of deconcentrators (6); the meter replacing instrument comprises a box body, a plurality of short-circuit ends (1) arranged at the top of the box body, an alternating current contactor (4) arranged at the upper part in the box body, a control board (5) arranged at the lower part in the box body, a plurality of on-off indicating lamps (2) arranged on the box body and a self-locking switch (3); the control panel (5) is respectively in circuit connection with the alternating current contactor (4), the on-off indicator lamp (2) and the self-locking switch (3); the short-circuit end (1) is connected with the alternating current contactor (4) in a circuit mode, and a contact connected with the control board (5) is arranged between the short-circuit end (1) and the alternating current contactor (4).
2. The uninterruptible power replacing device for the electric energy meter according to claim 1, wherein: each deconcentrator (6) comprises two corresponding splicing blocks (61), a deconcentration inserting table (62) connected with the short-circuit end (1) is arranged on the top of each block (61) in a protruding mode, a wire slot (67) used for allowing a power line (9) to penetrate through is formed in each block (61), a wiring board (7) arranged above each wire slot (67) and a puncture screw (8) arranged above each two ends of each wiring board (7); the block body (61) is provided with a plurality of corresponding operation holes (63).
3. The uninterruptible power replacing device for the electric energy meter according to claim 2, wherein: the wiring board (7) is provided with a connecting hole which corresponds to the branching insertion platform (62) and is used for being connected with the short-circuit end (1); the operation holes (63) correspond to the connecting holes and the puncture screws (8) respectively.
4. The uninterruptible power replacement device for the electric energy meter according to claim 2, characterized in that: a wire clamping ring (68) is arranged at the front end of the block body (61), and a plurality of pressing lugs (69) for fixing the power wire (9) are distributed on the inner wall of the wire clamping ring (68); a throat hoop is arranged outside the wire clamping ring (68).
5. The uninterruptible power replacing device for the electric energy meter according to claim 2, wherein: the front end and the rear end of the block body (61) are provided with convex clamping blocks (64), the clamping block (64) of the left block body (61) is an outer clamping block, the clamping block (64) of the right block body (61) is an inner clamping block, and the outer clamping block and the inner clamping block are staggered; the outside of the inner clamping block is provided with a circular clamping protrusion (65), and the outer clamping block is provided with a buckle (66) corresponding to the clamping protrusion (65).
6. The uninterruptible power replacing device for the electric energy meter according to claim 3, wherein: the short-circuit end (1) comprises a connecting wire, a sleeve (11) sleeved on the connecting wire, a plug (12) arranged at the tail end of the sleeve (11) and a short joint (13) rotatably arranged at the bottom of the plug (12); the short joint (13) is communicated with a connecting wire; the short joint (13) is connected with the connecting hole through a thread structure; the plug (12) is correspondingly clamped with an operation hole (63) on the branching insertion table (62).
7. The uninterruptible power replacing device for the electric energy meter according to claim 2, wherein: the puncture screw (8) comprises an insulating screw (81) at the upper part, a puncture head (82) fixed below the insulating screw (81) and a compression spring (83) sleeved on the insulating screw (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222908338.XU CN218586837U (en) | 2022-10-31 | 2022-10-31 | Uninterrupted replacing device for electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222908338.XU CN218586837U (en) | 2022-10-31 | 2022-10-31 | Uninterrupted replacing device for electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218586837U true CN218586837U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222908338.XU Active CN218586837U (en) | 2022-10-31 | 2022-10-31 | Uninterrupted replacing device for electric energy meter |
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| Country | Link |
|---|---|
| CN (1) | CN218586837U (en) |
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2022
- 2022-10-31 CN CN202222908338.XU patent/CN218586837U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An uninterrupted replacement device for electric energy meters Effective date of registration: 20230821 Granted publication date: 20230307 Pledgee: Industrial and Commercial Bank of China Limited Hangzhou Yuhang sub branch Pledgor: HANGZHOU HUIJIA INFORMATION TECHNOLOGY CO.,LTD. Registration number: Y2023980052960 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20230307 Pledgee: Industrial and Commercial Bank of China Limited Hangzhou Yuhang sub branch Pledgor: HANGZHOU HUIJIA INFORMATION TECHNOLOGY CO.,LTD. Registration number: Y2023980052960 |