CN212571615U - Short-circuit device for uninterrupted electricity conversion meter - Google Patents
Short-circuit device for uninterrupted electricity conversion meter Download PDFInfo
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- CN212571615U CN212571615U CN202020871466.XU CN202020871466U CN212571615U CN 212571615 U CN212571615 U CN 212571615U CN 202020871466 U CN202020871466 U CN 202020871466U CN 212571615 U CN212571615 U CN 212571615U
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Abstract
The utility model discloses a short-circuit device for uninterrupted electricity-changing meter, which comprises a shell, wherein an installation cavity is arranged in the shell; a plurality of binding posts penetrate the shell from the mounting cavity, and contact parts are arranged at the end parts of the binding posts in the shell; the short-circuit assembly is arranged in the installation cavity and comprises a change-over switch, a short-circuit sliding block, a pre-tightening spring and a reset assembly, wherein the short-circuit sliding block is connected to the shell in a sliding mode; the short circuit sliding block is positioned above the contact part, the bottom of the short circuit sliding block is fixedly connected with a plurality of elastic conducting strips, and the elastic conducting strips correspond to the wiring terminals one by one; one end of the pre-tightening spring is fixedly connected with the top plate of the shell, the other end of the pre-tightening spring is fixedly connected with the short circuit sliding block, and the change-over switch is connected with the short circuit sliding block through the reset component. The short-circuit protection circuit has the characteristics of quick connection, stable user current in the short-circuit process and reliable contact.
Description
Technical Field
The invention relates to the technical field of power grids, in particular to a short-circuit device for a power-uninterrupted electricity conversion meter.
Background
The electric energy meter is a special tool for metering the power consumption of a user, and the electric energy meter can be damaged or needs to be overhauled in the long-term use process, so that the electricity of the user needs to be replaced by the meter.
In the prior art, when a technician replaces an electric energy meter, the electric energy meter is connected in series in a power grid, so that a user needs to be powered off, namely, the user is powered off first, then the old electric energy meter is detached, and then a new electric energy meter is replaced; the operation mode ensures that the user has to be powered off in the process of replacing the electric energy meter, and the electric energy meter cannot be replaced when the user cannot be powered off, so that the replacement operation of the electric energy meter is very inconvenient.
Therefore, the short-circuit device is particularly important in the replacement process of the ammeter, at present, the uninterrupted ammeter is usually connected on the inlet wire and the outlet wire of the ammeter in parallel by adopting a wire clamp or a plug connector, then the inlet wire and the outlet wire of the ammeter are short-circuited by the short-circuit device, then the ammeter can be detached for replacement, meanwhile, due to the existence of the short-circuit device, the electricity for a user is directly conducted through the short-circuit device without powering off the user, however, in the actual use process, the existing short-circuit device adopts the combination of the inserting strip and the socket, the normally closed switch is used for short-circuiting the ammeter, an operator holds a special inserting strip, the inserting strip is inserted into the socket, the short-circuit can be conducted, and due to the fact that certain abrasion exists after the inserting strip is repeatedly used for many times, the contact is poor in the short-circuit process, and in the inserting process of the inserting block, the short circuit switches on gradually and has the unstable problem of connection, and at the in-process of in-service use, can appear because the card shell phenomenon appears in the inaccurate scheduling problem of angle of insertion occasionally when the inserted block inserts, need extract again then insert, so can make the electric current of user side extremely unstable, can cause great influence to the user power consumption.
For example, chinese patent publication No. CN203707525U, published 2014, 07, 09, entitled short-circuit device for replacing electric energy meter without power interruption, and the utility model discloses a through setting up slot and inserted block, only need insert the inserted block when carrying out the short circuit to the electric energy meter can, the electric energy meter short circuit convenient operation, and the inserted block is held by operating personnel, and it has above-mentioned problem equally.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a short-circuit device for continuously changing an ammeter has poor contact when in short circuit and is unstable in connection in the short-circuit process, and the short-circuit device for changing the ammeter has the characteristics of quick connection, stable user current in the short-circuit process and reliable contact.
The technical scheme of the invention is as follows:
a short circuit device for continuously changing electricity for ammeter comprises
The shell is internally provided with an installation cavity;
a plurality of binding posts penetrate the shell from the mounting cavity, and contact parts are arranged at the end parts of the binding posts in the shell;
the short-circuit assembly is arranged in the installation cavity and comprises a change-over switch, a short-circuit sliding block, a pre-tightening spring and a reset assembly, wherein the short-circuit sliding block is connected to the shell in a sliding mode;
the short circuit sliding block is positioned above the contact part, the bottom of the short circuit sliding block is fixedly connected with a plurality of elastic conducting strips, and the elastic conducting strips correspond to the wiring terminals one by one;
one end of the pre-tightening spring is fixedly connected with the top plate of the shell, the other end of the pre-tightening spring is fixedly connected with the short circuit sliding block, and the change-over switch is connected with the short circuit sliding block through the reset component.
Due to the fact that the combination of the pre-tightening spring and the short-circuit sliding block is adopted in the scheme, the short-circuit sliding block is enabled to move towards the contact part of the wiring terminal quickly after the pre-tightening spring is triggered to limit, the elastic conducting strip on the short-circuit sliding block is combined with the contact part of the wiring terminal quickly, quick connection is achieved, and the user electricity utilization cannot be interfered by short-circuit switching; more importantly, this scheme adopts elastic conducting strip to cooperate, after short circuit slider and contact site combine fast, elastic conducting strip compromises the effect of electric conduction and buffering, takes place elastic deformation in order to reach the effect of buffering when combining with the contact site, and here simultaneously, because elastic conducting strip's deformation makes the area of contact increase of elastic conducting strip and contact site, electrically conductive effect is better.
Preferably, a gap exists between the elastic conducting strip and the short-circuit sliding block, and an insulating buffer block is arranged between the elastic conducting strip and the short-circuit sliding block. Increase insulating buffer block on elastic conducting strip's basis, prevent to lead to elastic conducting strip to warp excessively because the elasticity of pretension spring, simultaneously, insulating buffer block supports to lean on elastic conducting strip when elastic conducting strip combines with the contact site, guarantees the contact of elastic conducting strip and contact site for elastic conducting strip and contact site contact are stable when the short circuit, make the short circuit device have the short circuit in-process user's electric current stable, the reliable characteristics of contact.
Preferably, the short-circuit sliding block is fixedly connected with the elastic conducting strip through a fixing screw.
Preferably, the fixing screw and the elastic conductive sheet are both made of copper.
Preferably, the shell is provided with a guide groove, a guide rod is arranged below the change-over switch, the guide rod is arranged in the guide groove in a sliding mode, and two ends of the guide groove are provided with limiting buckles. The utility model provides a change over switch's location scheme, when change over switch slides to the tip, adopt spacing buckle to carry on spacingly to the guide bar to the realization is spacing to change over switch, and the guide bar can not deviate from in spacing buckle under the condition that does not have artificial driving force to promote change over switch, and only when artificial promotion change over switch, just can make the guide bar be withdrawed from in the spacing buckle, adopts spacing buckle convenient to use, and the installation is simple.
Preferably, the reset assembly comprises reset guide grooves oppositely arranged on two sides of the shell, reset sliders connected in the reset guide grooves in a sliding manner, a reversing wheel arranged on the shell and a limit trigger device, the reset sliders are connected with the short-circuit sliders through a connecting band, the connecting band passes through the reversing wheel, the reversing wheel is used for reversing the connecting band, the limit trigger device comprises a rotating stop block rotatably arranged on the upper part of one end, far away from the short-circuit sliders, of the reset guide grooves and a limit stop block arranged on one side, close to the short-circuit sliders, of the rotating stop block, the limit stop blocks on the two sides are respectively correspondingly arranged at two ends of two transmission connecting rods which are arranged in a crossed manner and hinged at the middle part, one sides, far away from the limit stop blocks, of the two transmission connecting rods are respectively provided with sliding grooves, sliders are, the linkage rod is provided with a trigger rod, one end of the trigger rod is connected with the linkage rod, the other end of the trigger rod extends into the end part of the guide groove, the transmission connecting rod is fixed to the top of the installation cavity, push rods are arranged on two sides of the guide rod, one end of each push rod is connected with the guide rod, the other end of each push rod extends into the reset guide groove, and the push rods are used for pushing the reset sliding blocks to slide.
Preferably, the shell is provided with an insulating sleeve, the insulating sleeve is sleeved on the part of the wiring terminal outside the shell, and the insulating sleeve is connected with the shell through a spring. Adopt insulating cover to prevent that operating personnel from touching the terminal by mistake and taking place the accident when the terminal switches on, and adopt the spring to be connected with the casing and then expose in order to let the terminal follow insulating cover when the wiring, make things convenient for the wiring.
Preferably, be equipped with a pair of fastener on the casing and collude, the fastener colludes the symmetry and sets up the both sides at the casing, be equipped with control button on the casing, control button with the fastener colludes the transmission and is connected, control button is used for controlling the fastener to collude and catches or release the binding clip. In the in-service use in-process, if only lean on the wiring post to be connected between fastener and the short circuit device, can be because reasons such as gravity make the connection of terminal and fastener become unstable and make to be connected the problem, adopt the fastener to collude to be connected short circuit device and fastener for form good being connected between fastener and the short circuit device, make fastener and short circuit device be connected stably.
The invention has the beneficial effects that: the quick-connection type contact device has the characteristics of quick connection and reliable contact, and also has the advantages of stable connection and compact structure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the schematic structural diagram of the short-circuit slider of the present invention.
Fig. 3 is a schematic diagram of a limiting triggering device of the present invention.
In the figure: the device comprises a shell 1, an installation cavity 2, a wiring terminal 3, a contact part 31, an insulating sleeve 32, a change-over switch 4, a push rod 41, a short-circuit slider 5, an elastic conducting strip 51, an insulating buffer block 52, a connecting strip 53, a pre-tightening spring 6, a reset guide groove 7, a reset slider 71, a reversing wheel 72, a limit trigger device 8, a rotating stop 81, a limit stop 82, a transmission connecting rod 83, a sliding groove 84, a linkage rod 85 and a trigger rod 86.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
as shown in figures 1 to 3, a short-circuit device for a continuous electricity conversion meter comprises
The device comprises a shell 1, wherein a mounting cavity 2 is arranged in the shell;
a plurality of binding posts 3 penetrate the shell from the mounting cavity, and contact parts 31 are arranged at the end parts of the binding posts in the shell;
the short-circuit assembly is arranged in the installation cavity and comprises a change-over switch 4, a short-circuit sliding block 5 connected to the shell in a sliding mode, a pre-tightening spring 6 and a reset assembly;
the short-circuit sliding block is positioned above the contact part, the bottom of the short-circuit sliding block is fixedly connected with a plurality of elastic conducting strips 51, and the elastic conducting strips correspond to the wiring terminals one by one;
one end of the pre-tightening spring is fixedly connected with the top plate of the shell, the other end of the pre-tightening spring is fixedly connected with the short-circuit sliding block, and the change-over switch is connected with the short-circuit sliding block through the reset assembly.
Due to the fact that the combination of the pre-tightening spring and the short-circuit sliding block is adopted in the scheme, the short-circuit sliding block is enabled to move towards the contact part of the wiring terminal quickly after the pre-tightening spring is triggered to limit, the elastic conducting strip on the short-circuit sliding block is combined with the contact part of the wiring terminal quickly, quick connection is achieved, and the user electricity utilization cannot be interfered by short-circuit switching; more importantly, this scheme adopts elastic conducting strip to cooperate, after short circuit slider and contact site combine fast, elastic conducting strip compromises the effect of electric conduction and buffering, takes place elastic deformation in order to reach the effect of buffering when combining with the contact site, and here simultaneously, because elastic conducting strip's deformation makes the area of contact increase of elastic conducting strip and contact site, electrically conductive effect is better.
Further, a gap exists between the elastic conducting strip and the short-circuit sliding block, and an insulating buffer block 52 is arranged between the elastic conducting strip and the short-circuit sliding block. Increase insulating buffer block on elastic conducting strip's basis, prevent to lead to elastic conducting strip to warp excessively because the elasticity of pretension spring, simultaneously, insulating buffer block supports to lean on elastic conducting strip when elastic conducting strip combines with the contact site, guarantees the contact of elastic conducting strip and contact site for elastic conducting strip and contact site contact are stable when the short circuit, make the short circuit device have the short circuit in-process user's electric current stable, the reliable characteristics of contact.
Specifically, the short-circuit sliding block is fixedly connected with the elastic conducting strip through a fixing screw, and the fixing screw and the elastic conducting strip are made of copper.
Further, be equipped with the guide way on the casing, change over switch below is equipped with the guide bar, and the guide bar slides and sets up in the guide way, and the both ends of guide way are equipped with spacing buckle. The utility model provides a change over switch's location scheme, when change over switch slides to the tip, adopt spacing buckle to carry on spacingly to the guide bar to the realization is spacing to change over switch, and the guide bar can not deviate from in spacing buckle under the condition that does not have artificial driving force to promote change over switch, and only when artificial promotion change over switch, just can make the guide bar be withdrawed from in the spacing buckle, adopts spacing buckle convenient to use, and the installation is simple.
Specifically, the reset assembly adopted in this embodiment includes a reset guide slot 7 oppositely disposed at two sides of the housing, a reset slider 71 slidably connected in the reset guide slot, a reversing wheel 72 disposed on the housing, and a limit trigger device 8, the reset slider is connected with the short-circuit slider through a connecting band 53, the connecting band passes through the reversing wheel, the reversing wheel is used for reversing the connecting band, the limit trigger device includes a rotation block 81 rotatably disposed at the upper portion of one end of the reset guide slot away from the short-circuit slider, a limit block 82 disposed at one side of the rotation block close to the short-circuit slider, the limit blocks at two sides are respectively disposed at two ends of two transmission connecting rods 83 which are arranged in a crossed manner and hinged at the middle portion, one sides of the two transmission connecting rods away from the limit block are both provided with sliding slots 84, sliders are disposed in the two sliding slots, the two sliders are connected through a, one end of the trigger rod is connected with the linkage rod, the other end of the trigger rod extends into the end part of the guide groove, the transmission connecting rod is fixed at the top of the installation cavity, push rods 41 are arranged on two sides of the guide rod, one end of each push rod is connected with the guide rod, the other end of each push rod extends into the reset guide groove, and the push rods are used for pushing the reset sliding blocks to slide.
The scheme specifically illustrates a reset assembly, when the pre-tightening spring is in a compressed state, the reset slider is positioned at the rightmost end of the reset guide groove, the rotating stop block is positioned at the left side of the reset slider and is tightly attached to the reset slider, meanwhile, the limit stop block is positioned at the left side of the rotating stop block and is tightly attached to the rotating stop block, at the moment, the two transmission connecting rods are in an open state, namely, the distance between the two ends of the transmission connecting rods is the largest, correspondingly, the linkage rod is positioned at a position closest to the hinge joint of the two transmission connecting rods, because the length of the linkage rod is fixed, the opening degree of the two transmission connecting rods is larger as the linkage rod is closer to the hinge joint of the two transmission connecting rods, and the trigger rod at the moment extends into the guide groove and has the largest extension length, because the short-circuit slider is connected with the reset, therefore, the reset sliding block cannot move leftwards, the short-circuit sliding block connected with the reset sliding block cannot move downwards, and the pre-tightening spring is kept in a compressed state all the time.
When a pre-tightening spring needs to be triggered to enable a short-circuit sliding block to pop up quickly, a change-over switch is moved towards the left side, when the change-over switch contacts a trigger rod and continuously pushes the trigger rod to move leftwards, the trigger rod drives a linkage rod to move leftwards, the linkage rod moves leftwards, a sliding block on the linkage rod moves leftwards along a sliding groove, so that the opening degree of two transmission connecting rods is gradually reduced, two limit stops at the right ends of the two transmission rods are gradually closed, the contact between the two limit stops and corresponding rotation stops is gradually reduced, finally the two limit stops are completely separated from the corresponding rotation stops, the limit of the rotation stops rotating leftwards disappears, the rotation stops can rotate leftwards, a reset sliding block can slide leftwards, the short-circuit sliding block is pushed to move downwards under the action of the elastic force of the pre-tightening spring, and the limit of the reset, the short-circuit slider moves downwards quickly, so that the elastic conducting strip below the short-circuit slider is combined with the contact part of the binding post quickly, and quick short circuit is realized.
When a pre-tightening spring needs to be reset, the change-over switch is pushed to move rightwards, a push rod fixedly connected below the change-over switch also moves rightwards along with the change-over switch, the push rod pushes the reset sliding block to move rightwards in the reset guide groove, the reset sliding block moves rightwards to enable the short-circuit sliding block to move upwards, meanwhile, the linkage rod moves rightwards under the action of the reset spring due to the entertainment of the change-over switch, the two transmission connecting rods are gradually opened, the spacing between the limit stops at the end parts of the two transmission connecting rods is gradually increased and gradually moves back to the left side of the rotating stop, the rotating stop always returns to a vertically downward state due to the action of gravity, the left side of the limit stop moves back to limit the rotating stop to rotate rightwards, but the rightward rotation of the limit stop is not influenced, the reset sliding block, when the reset sliding block returns to the right side of the rotating stop block, the reset assembly returns to the compression state of the pre-tightening spring. A
The reset assembly adopting the scheme adopts the combination of various sliding block guide grooves and is also driven by the connecting belt, the structure is simple and reliable, meanwhile, the reset sliding block is arranged at the top of the side surface of the shell, the driving connecting rod, the linkage rod and the like are arranged at the top of the shell mounting cavity, the structure is compact, the middle position is free, and the reset assembly can be used for arranging other assemblies or reducing the shell of the short-circuit device.
Further, the shell is provided with an insulating sleeve 32, the insulating sleeve is sleeved on the part of the wiring terminal outside the shell, and the insulating sleeve is connected with the shell through a spring. Adopt insulating cover to prevent that operating personnel from touching the terminal by mistake and taking place the accident when the terminal switches on, and adopt the spring to be connected with the casing and then expose in order to let the terminal follow insulating cover when the wiring, make things convenient for the wiring.
Furthermore, a pair of wire clamp hooks is arranged on the shell, the wire clamp hooks are symmetrically arranged on two sides of the shell, a control button is arranged on the shell and is in transmission connection with the wire clamp hooks, and the control button is used for controlling the wire clamp hooks or releasing the jointing clamp. In the in-service use in-process, if only lean on the wiring post to be connected between fastener and the short circuit device, can be because reasons such as gravity make the connection of terminal and fastener become unstable and make to be connected the problem, adopt the fastener to collude to be connected short circuit device and fastener for form good being connected between fastener and the short circuit device, make fastener and short circuit device be connected stably.
Claims (8)
1. A short circuit device for continuously changing electricity meters is characterized by comprising
The shell is internally provided with an installation cavity;
a plurality of binding posts penetrate the shell from the mounting cavity, and contact parts are arranged at the end parts of the binding posts in the shell;
the short-circuit device is arranged in the installation cavity and comprises a change-over switch, a short-circuit sliding block, a pre-tightening spring and a reset assembly, wherein the short-circuit sliding block is connected to the shell in a sliding mode;
the short circuit sliding block is positioned above the contact part, the bottom of the short circuit sliding block is fixedly connected with a plurality of elastic conducting strips, and the elastic conducting strips correspond to the wiring terminals one by one;
one end of the pre-tightening spring is fixedly connected with the top plate of the shell, the other end of the pre-tightening spring is fixedly connected with the short circuit sliding block, and the change-over switch is connected with the short circuit sliding block through the reset component.
2. The short-circuit device for the uninterrupted power supply ammeter according to claim 1, wherein a gap exists between the elastic conducting strip and the short-circuit sliding block, and an insulating buffer block is arranged between the elastic conducting strip and the short-circuit sliding block.
3. The short-circuit device for the uninterrupted power supply ammeter according to claim 1, wherein the short-circuit sliding block is fixedly connected with the elastic conducting strip through a fixing screw.
4. The shorting device as recited in claim 3 wherein the set screw and the resilient conductive tab are made of copper.
5. The short-circuit device for the uninterruptible power supply converter according to claim 1, wherein a guide groove is formed in the housing, a guide rod is arranged below the switch, the guide rod is slidably arranged in the guide groove, and limit buckles are arranged at two ends of the guide groove.
6. The short-circuit device of claim 5, wherein the reset assembly comprises a reset guide slot, a reset slider, a reversing wheel and a limit trigger device, the reset guide slot is disposed at two sides of the housing, the reset slider is slidably connected in the reset guide slot, the reversing wheel is disposed on the housing, the reset slider is connected with the short-circuit slider through a connecting band, the connecting band passes through the reversing wheel, the reversing wheel is used for reversing the connecting band, the limit trigger device comprises a rotation stop block rotatably disposed at an upper portion of one end of the reset guide slot far away from the short-circuit slider, a limit stop block disposed at a side of the rotation stop block near the short-circuit slider, the limit stop blocks at two sides are respectively disposed at two ends of two transmission connecting rods which are arranged in a crossed manner and hinged with each other at a middle portion, and a sliding groove is disposed at one side, all be equipped with the slider in the spout, connect through the gangbar between two sliders, be equipped with the trigger bar on the gangbar, trigger bar one end with the other end is connected to the gangbar and is deepened the tip of guide way, the transmission connecting rod is fixed the top of installation cavity, the both sides of guide bar are equipped with the push rod, the one end of push rod with the other end is connected to the guide bar and deepens in the guide slot resets, the push rod is used for promoting the slider that resets slides.
7. The shorting device as recited in claim 1 wherein the housing has an insulating sleeve disposed thereon, the insulating sleeve being disposed on a portion of the terminal outside the housing, the insulating sleeve being connected to the housing by a spring.
8. The short-circuit device for the uninterruptible power supply unit according to any one of claims 1 to 7, wherein the housing is provided with a pair of wire clamp hooks symmetrically arranged on both sides of the housing, the housing is provided with a control button in transmission connection with the wire clamp hooks, and the control button is used for controlling the wire clamp hooks to hook or release the jointing clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020871466.XU CN212571615U (en) | 2020-05-21 | 2020-05-21 | Short-circuit device for uninterrupted electricity conversion meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020871466.XU CN212571615U (en) | 2020-05-21 | 2020-05-21 | Short-circuit device for uninterrupted electricity conversion meter |
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| Publication Number | Publication Date |
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| CN212571615U true CN212571615U (en) | 2021-02-19 |
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| CN202020871466.XU Active CN212571615U (en) | 2020-05-21 | 2020-05-21 | Short-circuit device for uninterrupted electricity conversion meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466511A (en) * | 2021-07-07 | 2021-10-01 | 南京协胜智能科技有限公司 | Portable low-voltage user uninterrupted electric energy meter quick replacement device |
| CN116505338A (en) * | 2023-06-21 | 2023-07-28 | 华海通信技术有限公司 | High-voltage release protection device and submarine cable power supply system |
-
2020
- 2020-05-21 CN CN202020871466.XU patent/CN212571615U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466511A (en) * | 2021-07-07 | 2021-10-01 | 南京协胜智能科技有限公司 | Portable low-voltage user uninterrupted electric energy meter quick replacement device |
| CN113466511B (en) * | 2021-07-07 | 2024-03-29 | 南京协胜智能科技有限公司 | Portable low-voltage user uninterrupted power meter quick replacement device |
| CN116505338A (en) * | 2023-06-21 | 2023-07-28 | 华海通信技术有限公司 | High-voltage release protection device and submarine cable power supply system |
| CN116505338B (en) * | 2023-06-21 | 2023-09-08 | 华海通信技术有限公司 | High-voltage release protection device and submarine cable power supply system |
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