CN111628306B - Device for changing electricity meter without power interruption - Google Patents
Device for changing electricity meter without power interruption Download PDFInfo
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- CN111628306B CN111628306B CN202010465419.XA CN202010465419A CN111628306B CN 111628306 B CN111628306 B CN 111628306B CN 202010465419 A CN202010465419 A CN 202010465419A CN 111628306 B CN111628306 B CN 111628306B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case
- H01R9/18—Fastening by means of screw or nut
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2475—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts
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- Manufacturing Of Electrical Connectors (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses equipment for changing an electricity meter without power interruption, which comprises a wiring clamp and a short-circuit box, wherein the short-circuit box comprises a box body, a short-circuit column, a conducting sheet, a pushing button and a fixing component, one end of the short-circuit column is connected with the conducting sheet, the other end of the short-circuit column is a plugging end, the conducting sheet is connected with one end of the pushing button, the other end of the pushing button is arranged outside the box body, the pushing button moves relative to the box body, and the fixing component is arranged on two sides of the box body and is used for fixedly connecting the short-circuit box with the wiring clamp; be equipped with on the binding clip with short circuit post matched with jack, through wires hole and screw mutually perpendicular run through, are connected with between jack and the screw and switch on the piece, and the side that switches on the post is equipped with the screw, and the bottom that switches on the post is equipped with a style of calligraphy recess, screw and the post that switches on and cooperate and be connected. According to the invention, after the short-circuit posts on the short-circuit box are inserted into the jacks of the junction box, short-circuit between each phase of incoming and outgoing lines of the electric meter is realized, the electric meter can be replaced under the condition of no power failure, and normal power utilization of users is ensured.
Description
Technical Field
The invention relates to the technical field of ammeter replacing equipment, in particular to uninterrupted ammeter replacing equipment.
Background
At present, when an electric meter is replaced by a worker, the normal electricity utilization of a user must be cut off firstly, then the electric meter is replaced, and the normal electricity utilization of the user is recovered after the replacement of the electric meter is completed. Although the time is short, the method still brings inconvenience to the user, and certain economic loss of the user can be caused seriously.
For example, chinese patent document CN207559393U discloses a "dual-purpose live wire clip for replacing a cable", which includes an upper insulating plastic plate and a lower insulating plastic plate, wherein the upper insulating plastic plate and the lower insulating plastic plate are respectively provided with a first threaded through hole at two ends and a middle portion thereof, and the lower side of the upper insulating plastic plate and the upper side of the lower insulating plastic plate are respectively provided with a wire slot. In the process of replacing the ammeter, although the time of power failure of a user is shortened by using the electrified ammeter replacing wire clamp, the ammeter is still replaced by cutting off the power.
Disclosure of Invention
The invention mainly solves the technical problem that the existing ammeter replacing equipment needs to be powered off to replace the ammeter; the utility model provides a device of uninterrupted power supply ammeter of trading has realized the short circuit between each looks business turn over line of ammeter after inserting the jack of terminal box with the short connecting post on the short circuit box, can change the ammeter under the circumstances of uninterrupted power supply, guarantees user's normal power consumption.
The technical problem of the invention is mainly solved by the following technical scheme: the electric meter connector comprises a wiring clamp and a short-circuit box, wherein the wiring clamp is arranged on an electric meter, and the short-circuit box is used for being plugged with the wiring clamp when the electric meter is changed without power failure;
the short connection box comprises a box body, a short connection column, a conducting piece, a pushing button and a fixing assembly, wherein one end of the short connection column is connected with the conducting piece, the other end of the short connection column is a splicing end, the conducting piece is connected with one end of the pushing button, the other end of the pushing button is arranged outside the box body, the pushing button moves relative to the box body, and the fixing assembly is arranged on two sides of the box body and used for fixedly connecting the short connection box with a wiring clamp;
be equipped with on the binding clip with short circuit post matched with jack, through wires hole and screw mutually perpendicular run through, be connected with between jack and the screw and switch on the piece, the side of switching on the post is equipped with the screw thread, the bottom of switching on the post is equipped with a style of calligraphy recess, the screw with switch on the post and cooperate and be connected.
After inserting the jack of terminal box with the short circuit post on the short circuit box in, realized the short circuit between each business turn over line of ammeter, can change the ammeter under the circumstances of not cutting off the power supply, guarantee user's normal power consumption.
The in-process that will switch on the post and twist into the screw, when the insulating layer surface looks butt of bottom and electric wire of switching on the post, the insulating layer of electric wire receives the extrusion of a style of calligraphy recess both sides of switching on the post bottom, the insulating layer of a style of calligraphy recess interlock portion line, the insulating layer of the part electric wire of a style of calligraphy recess interlock through the rotatory produced spin and shear force of switching on the post tears, expose the conducting layer of the inside, the bottom of switching on the post is with the conducting layer looks butt of electric wire, the area of contact of switching on post and electric wire conducting layer has been increased, prevent to lead to contact failure because of the area of contact of switching on post and electric wire conducting layer is too little, the short circuit between each business turn over line of realization ammeter that can not be fine, and then guaranteed to change the ammeter under the circumstances of not cutting off power supply, guarantee user's normal power consumption.
Preferably, the other end of the push button is arranged outside the box body, one end of the push button is connected with one end of the first spring, the other end of the first spring is connected with one side face of the arc-shaped elastic sheet, the other side face of the arc-shaped elastic sheet is connected with one end of the second spring, the other end of the second spring is connected with the bottom of the inverted T-shaped groove, the first spring, the arc-shaped elastic sheet and the second spring are arranged inside the T-shaped groove, the push button is arranged outside the T-shaped groove, and the T-shaped groove is connected with the conducting sheet.
At the working process of changing the ammeter, with T type groove and switch on piece fixed positioning after the assigned position, loosen and impel the button after, rely on the elasticity of second spring self, will impel the button and reset to initial position (impel the button and be located T type groove outside), prevent that the staff from touching at the in-process mistake of changing the ammeter and impel the button, withdraw the short circuit post, guaranteed the security of using.
As preferred, T type groove include the cross slot and erect the groove, T type groove includes the cross slot and erects the groove, the bottom in T type groove is equipped with positioning groove, the inside locating component that is equipped with of cross slot, positioning component includes slider, positioning spring and L type locating lever, the last grooved surface and the cross slot sliding connection of cross slot are located to the slider, positioning spring's both ends are connected with the side groove face of slider and cross slot respectively, the one end and the slider fixed connection of L type locating lever, the other end of L type locating lever is the location end, the location end passes in the through-hole on the positioning groove locates positioning groove, be equipped with the locating piece corresponding with positioning groove in the box body, be equipped with the constant head tank corresponding with the location end on the locating piece.
In the working process of replacing the ammeter, the positioning assembly and the positioning block are matched to fixedly position the T-shaped groove and the conducting piece, so that the short connecting column and the inner insulating sheath cannot be automatically withdrawn, and the use safety is guaranteed.
Preferably, the fixing assembly comprises a lock hook, a first connecting rod, a second connecting rod, a lock hook spring and a fixing button, the lock hook is rotatably installed on the box body, one end of the lock hook is hooked and is arranged outside the box body, the other end of the lock hook is fixedly connected with the inside of the box body and the one end of the first connecting rod, the other end of the first connecting rod is rotatably connected with the second connecting rod, two ends of the lock hook spring are fixedly connected with the second connecting rod and one end of the fixing button respectively, the other end of the fixing button is arranged outside the box body, and a groove corresponding to the lock hook is formed in the jointing clamp.
The short circuit box and the wiring clamp are fixedly locked when the ammeter is replaced through the fixing assembly, so that the plugging relation between the short circuit box and the wiring clamp is reinforced, and the use safety is guaranteed.
Preferably, the conduction piece comprises a conduction ring, a conduction groove and a conduction connecting sheet, the conduction ring is connected with the conduction groove through the conduction connecting sheet, the inner wall of the conduction ring is provided with threads, the threads are consistent with those of the screw holes, and the inner diameter of the conduction groove is consistent with the outer diameter of the short connecting column.
The switch-on ring and the conduction post threaded connection have increased the area of contact between switch-on ring and the conduction post, have guaranteed the stability of contact, have guaranteed the ammeter short circuit between each business turn over line mutually, and then have guaranteed to change the ammeter under the circumstances of not cutting off the power supply, guarantee user's normal power consumption.
Preferably, an outer insulating sheath is fixedly mounted at a part of the box body where the short-circuit column penetrates out, an inner insulating sheath extending out or retracting along with the conduction column is arranged on the conduction column, and the conduction column and the inner insulating sheath penetrate through the outer insulating sheath.
Be equipped with the internal insulation sheath that stretches out or withdraws along with the conduction post on the conduction post, the conduction post passes outer insulation sheath with internal insulation sheath, plays safety protection's effect, prevents that staff's hand from touching the shorting post.
Preferably, the box body is provided with a guide rail along the moving direction of the conducting sheet and the T-shaped groove, and the conducting sheet and the T-shaped groove are both in sliding connection with the guide rail.
The guide rail plays the effect of direction, prevents to appear the skew because of conducting strip and T type groove at the in-process that removes and leads to the short circuit post to be unable all stretching out, and the short circuit post is unable all to stretch out then leads to the short circuit box to each short circuit operation unsuccessful that advances in and out the line mutually, and then at the in-process of changing the ammeter, the condition of outage, unable normal power consumption can appear to the user.
The invention has the beneficial effects that:
1) after inserting the jack of terminal box with the short circuit post on the short circuit box in, realized the short circuit between each business turn over line of ammeter, can change the ammeter under the circumstances of not cutting off the power supply, guarantee user's normal power consumption.
2) When the bottom of conduction post and the insulating layer surface looks butt of electric wire, the insulating layer of electric wire receives the extrusion of a style of calligraphy recess both sides of conduction post bottom, the insulating layer of a style of calligraphy recess interlock live some electric wires, the insulating layer of the part electric wire that the rotatory produced rotary shear force of conduction post was lived a style of calligraphy recess interlock is torn through the conducting layer looks butt of conduction post, expose the conducting layer of the inside, the bottom of conduction post and the conducting layer looks butt of electric wire, the area of contact of conduction post and electric wire conducting layer has been increased, prevent to lead to contact failure because of the area of contact of conduction post and electric wire conducting layer too few, the realization ammeter that can not be fine is each to be passed in and out the short circuit between the line.
3) At the working process of changing the ammeter, with T type groove and switch on piece fixed positioning after the assigned position, loosen and impel the button after, rely on the elasticity of second spring self, will impel the button and reset to initial position (impel the button and be located T type groove outside), prevent that the staff from touching at the in-process mistake of changing the ammeter and impel the button, withdraw the short circuit post, guaranteed the security of using.
4) In the working process of replacing the ammeter, the positioning assembly and the positioning block are matched to fix and position the T-shaped groove and the conducting piece, so that the short connecting column and the inner insulating sheath cannot be automatically withdrawn, the short connecting box and the wiring clamp are fixedly locked when the ammeter is replaced through the fixing assembly, and the use safety is guaranteed.
5) Be equipped with the internal insulation sheath that stretches out or withdraws along with the conduction post on the conduction post, the conduction post passes outer insulation sheath with internal insulation sheath, plays safety protection's effect, prevents that staff's hand from touching the shorting post.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic structural diagram of the short-circuit box of the invention with the upper box body removed.
Fig. 3 is a schematic view of a structure in a T-shaped slot when the push button is not pressed according to the present invention.
Fig. 4 is a schematic view of a structure within a T-shaped slot when a push button is depressed in accordance with the present invention.
Fig. 5 is a schematic structural diagram of the conducting element of the present invention.
Fig. 6 is a schematic perspective view of a conductive via according to the present invention.
In the figure, 1, a jointing clamp, 101, an upper jointing clamp, 102, a lower jointing clamp, 2, a short-circuit box, 3, a box body, 301, an upper box body, 302, a lower box body, 4, a short-circuit column, 5, a conducting sheet, 6, a pushing button, 7, a conducting piece, 8, a T-shaped groove, 9, a first spring, 10, an arc-shaped elastic sheet, 11, a second spring, 12, an inner insulating sheath, 13, an outer insulating sheath, 14, a guide rail, 15, a limiting block, 16, an indicator light, 17, a positioning groove, 18, a sliding block, 19, a positioning spring, 20, an L-shaped positioning rod, 21, a locking hook, 22, a locking hook spring, 23, a fixed button, 24, a first connecting rod, 25, a second connecting rod, 26, an I-shaped rotating shaft, 27, a jack, 28, a threading hole, 29, a conducting column, 30, a straight-shaped groove, 31, a screw, 32, a groove, 71, a conducting ring, 72, a conducting groove, 73, a conducting connecting sheet, 81 and a vertical groove, 82. a transverse groove.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): the utility model provides an equipment of not cutting off power supply and trading ammeter, as shown in fig. 1 ~ 3, including binding clip 1 and short circuit box 2, the binding clip is installed on the ammeter, and the short circuit box is pegged graft with the binding clip when not cutting off power supply and trading the ammeter.
The short-circuit box comprises a box body 3, a short-circuit column 4, a conducting sheet 5, a pushing button 6 and a fixing component. The box body is divided into an upper box body 301 and a lower box body 302, and the inner wall of the upper box body is tightly matched with the outer wall of the lower box body.
The one end of propelling the button is located inside the box body, and the other end is located the box body outside, but the propelling button is for box body reciprocating motion along the bar hole. An inverted T-shaped groove 8 is arranged in the box body and is divided into a vertical groove 81 and a transverse groove 82. The push button is positioned right above the T-shaped groove, and a first spring 9, an arc-shaped elastic sheet 10 and a second spring 11 are sequentially arranged in the T-shaped groove from top to bottom. The two ends of the first spring are respectively connected with one end of the push button and one side surface of the arc-shaped elastic sheet, and the two ends of the second spring are respectively connected with the other side surface of the arc-shaped elastic sheet and the lower groove surface of the transverse groove. When the push button is not pressed, the arc-shaped elastic sheet is bent and positioned in the vertical groove, and the arc-shaped elastic sheet is in sliding fit with the vertical groove.
One end of the short connecting column is connected with the conducting sheet, and the other end of the short connecting column is a splicing end. The short-circuit column is provided with an inner insulating sheath 12 extending out or retracting along with the short-circuit column, the conduction column and the inner insulating sheath penetrate through an outer insulating sheath 13, and the outer insulating sheath is fixedly installed on the box body at the part where the short-circuit column penetrates out. Each conducting piece is connected with two short connecting columns. The two sides of the transverse groove are respectively fixedly connected with the conducting pieces. In this embodiment, two neutral shorting posts are connected to one conducting strip, and two live shorting posts are connected to the other conducting strip. The box body is provided with a guide rail 14 along the moving direction of the conducting sheet and the T-shaped groove, and the conducting sheet and the T-shaped groove are both connected with the guide rail in a sliding way. The guide rail both ends fixedly connected with stopper 15 on the conducting strip moving direction. The two conducting sheets are respectively connected with an indicator light 16 on the box body through a lead.
And a positioning groove 17 is formed in the outer side of the bottom of the T-shaped groove, the opening of the positioning groove faces downwards, and the positioning groove is in sliding fit with a guide rail in the moving direction of the conducting sheet. The left side and the right side of the inner part of the transverse groove of the T-shaped groove are both provided with positioning components, and the positioning components on the left side and the right side are consistent in structure. The positioning assembly comprises a slide block 18, a positioning spring 19 and an L-shaped positioning rod 20. The slider is located the last groove face and the transverse groove sliding connection of transverse groove, and positioning spring and slider are located same water flat line, and positioning spring's both ends are connected with the side face of slider and the side groove face of transverse groove respectively. One end of the L-shaped positioning rod is fixedly connected with the bottom surface of the sliding block, the other end of the L-shaped positioning rod is a positioning end, the positioning end penetrates through a through hole in the positioning groove and is located in the positioning groove, and a positioning groove corresponding to the positioning end is formed in the guide rail in the moving direction of the T-shaped groove.
The two sides of the box body are respectively provided with a fixing component for fixedly connecting the short-circuit box with the jointing clamp, and the fixing component structures on the left side and the right side are consistent. The fixing assembly comprises a locking hook 21, a locking hook push-pull member comprising a first link 24 and a second link 25, a locking hook spring 22 and a fixing button 23. The lock hook and the first connecting rod are rotatably mounted on the upper box body through the I-shaped rotating shaft 26, one end of the lock hook is in a hook shape and is located outside the box body through a through hole formed in the upper box body, the other end of the lock hook is located inside the box body and fixedly connected with one end of the first connecting rod, the other end of the first connecting rod is rotatably connected with one end of the second connecting rod, the other end of the second connecting rod is fixedly connected with one end of a lock hook spring, the other end of the lock hook spring is fixedly connected with one end of a fixed key, and the other end of the fixed key is located outside two sides of the upper box body. The latch hook and the short-circuit column are positioned on the same side of the box body.
The clamp is divided into an upper clamp 101 and a lower clamp 102, which are fixedly connected by a screw 31. The upper binding clip is provided with a jack 27 matched with the short-circuit column and a screw hole, and the screw hole and the jack are positioned on the same horizontal line. Go up the binding clip and be equipped with the semicircle columnar order breach towards lower binding clip side, the lower binding clip also is equipped with the semicircle columnar order breach towards last binding clip side, goes up the binding clip and forms the through wires hole 28 that is the cylinder type with lower binding clip cooperation butt joint after. The threading hole and the screw hole are mutually vertical and penetrate. As shown in fig. 5, the conducting member 7 includes a conducting ring 71, a conducting groove 72 and a conducting connecting piece 73, the outer diameter of the conducting ring is consistent with the outer diameter of the screw hole, the inner diameter of the conducting ring is consistent with the inner diameter of the screw hole, the inner wall of the conducting ring is provided with threads, the threads are consistent with the threads of the screw hole, the conducting ring is placed at the through position where the screw hole and the threading hole are perpendicular to each other, and the central axis of the conducting ring is coincident with the central axis of the screw hole. The internal diameter of conduction groove is unanimous with the external diameter of shorting post, and the conduction groove is placed at the end of jack, and the conduction ring links to each other through the conduction connection piece with the conduction groove. The screw hole is internally provided with a conduction column 29 in a matching way, as shown in fig. 6, the side surface of the conduction column is provided with threads, the bottom of the conduction column is provided with a linear groove 30, and the bottom of the conduction column is abutted with the electric wire in the threading hole. The left side and the right side of the jointing clamp are respectively provided with a groove 32, and the grooves correspond to one hooked end of the lock hook.
The working principle is as follows: before the change of carrying out the ammeter, unpack the binding clip apart, place the back at ammeter below electric wire to the lower binding clip, 4 electric wires of 4 through wires hole one-to-one respectively coincide last binding clip and lower binding clip again, with 3 screw fixed connection, accomplish the installation of binding clip. And then, screwing the conduction column into the screw hole by using a corresponding insulating screwdriver, wherein the length of the conduction column screwed into the screw hole is a fixed value. In the process that the conduction column is screwed into the screw hole, when the bottom of the conduction column is abutted to the surface of the insulating layer of the wire, the insulating layer of the wire is extruded by two sides of the linear groove at the bottom of the conduction column, the linear groove is meshed with the insulating layer of part of the wire, the insulating layer of the part of the wire meshed with the linear groove is torn by the rotary cutting force generated by rotation of the conduction column, the conducting layer inside is exposed, the bottom of the conduction column is abutted to the conducting layer of the wire, and the torn insulating layer is located in the linear groove. The material of the conduction column is softer than that of the conducting layer of the electric wire, and the conduction column is slightly deformed after the cutting edge rotates to break the insulating layer of the electric wire, so that the conduction column is better in contact with the conducting layer of the electric wire.
After accomplishing above-mentioned operation, press the latch hook button of box body both sides, latch hook spring compression deformation promotes the one end that first connecting rod and latch hook spring link to each other and moves to the inboard, and the other end of first connecting rod then moves to the outside, and the pulling second connecting rod moves to the outside, and then drives the latch hook and rotates, is hooked one end with the latch hook and places the slot in, loosens the latch hook button, makes the latch hook be the slot mutual lock of hooked one end and binding clip and dies, with short-circuit box and binding clip fixed connection together.
And after the operation is finished, the short connection box is spliced with the jointing clamp. As shown in fig. 4, when the push button is pressed, the first spring is pressed to drive the arc-shaped elastic sheet to move downwards, and when the arc-shaped elastic sheet moves out of the vertical groove and enters the transverse groove, the bent arc-shaped elastic sheet is restored to deform by the elasticity of the arc-shaped elastic sheet, the two ends of the arc-shaped elastic sheet are unfolded outwards to push the sliding block to slide towards the two sides, so that the positioning end of the L-shaped positioning rod is driven to retract into the transverse groove, and the T-shaped groove is not positioned on the guide rail any more at the moment. The pushing key is pressed, the pushing key is pushed towards one side of the short-circuit column, so that the T-shaped groove and the conducting piece are driven to push the short-circuit column outwards, the short-circuit column is inserted into the corresponding jack on the jointing clamp, and the column head of the short-circuit column is located in the conducting groove and is in contact with the conducting groove. When the T-shaped groove touches the limiting blocks on the two sides of the guide rail and cannot move forwards any more, the push button is released. After the push button is released, the second spring which is deformed under pressure recovers deformation by virtue of the elasticity of the second spring, and the arc-shaped elastic sheet moves upwards under the action of the upward thrust from the second spring, enters the vertical groove from the transverse groove and returns to the initial position (the position shown in fig. 3). When the initial position was got back to arc shell fragment, the slider no longer received the pressure of arc shell fragment, and the constant head tank relies on the elasticity of self to resume deformation, and initial position (the position shown in figure 3) are got back to the slider to the location end that drives L type locating lever passes the through-hole on the positioning groove, cooperatees with the constant head tank on the guide rail, fixes a position T type groove on the guide rail, thereby makes shorting post and interior insulating sheath can not withdraw automatically.
When the short-circuit operation of the short-circuit box on each phase incoming and outgoing line is over, the indication on the short-circuit box is lightened, and the work of replacing the ammeter can be carried out. In the process of replacing the electric meter, the user can not be powered off and can still normally use electricity.
After the ammeter is replaced, the short circuit box needs to be detached, and the push button is pressed at first, so that the T-shaped groove is no longer positioned on the guide rail. Then press and impel the button, will impel the button and promote to short circuit post place one side opposite direction to drive T type groove and switch on the piece and withdraw the short circuit post to the box body in to the adduction. When the T-shaped groove touches the limiting blocks on the two sides of the guide rail and cannot move backwards, the pushing key is loosened, and the T-shaped groove is positioned on the guide rail. Finally, the latch hook buttons on the two sides of the box body are pressed down, and the latch hook is driven to rotate through a series of transmission, so that the hook-shaped end of the latch hook is not locked with the groove on the jointing clamp, and the short-circuit box is detached from the jointing clamp.
Claims (5)
1. The device for changing the ammeter in the uninterrupted power supply is characterized by comprising a wiring clamp and a short-circuit box, wherein the wiring clamp is arranged on the ammeter, and the short-circuit box is used for being plugged with the wiring clamp when the ammeter is changed in the uninterrupted power supply;
the short connection box comprises a box body, a short connection column, a conducting piece, a pushing button and a fixing assembly, wherein one end of the short connection column is connected with the conducting piece, the other end of the short connection column is a splicing end, the conducting piece is connected with one end of the pushing button, the other end of the pushing button is arranged outside the box body, the pushing button moves relative to the box body, and the fixing assembly is arranged on two sides of the box body and used for fixedly connecting the short connection box with a wiring clamp;
the wiring clamp is provided with a jack, a threading hole and a screw hole which are matched with the short-connection column, the threading hole and the screw hole are vertically penetrated, a conduction piece is connected between the jack and the screw hole, the side surface of the conduction column is provided with a thread, the bottom of the conduction column is provided with a linear groove, and the screw hole is matched and connected with the conduction column;
the other end of the push button is arranged outside the box body, one end of the push button is connected with one end of a first spring, the other end of the first spring is connected with one side surface of an arc-shaped elastic sheet, the other side surface of the arc-shaped elastic sheet is connected with one end of a second spring, the other end of the second spring is connected with the bottom of an inverted T-shaped groove, the first spring, the arc-shaped elastic sheet and the second spring are all arranged inside the T-shaped groove, the push button is arranged outside the T-shaped groove, and the T-shaped groove is connected with the conducting sheet;
the T type groove includes the transverse groove and erects the groove, the bottom in T type groove is equipped with positioning groove, the inside locating component that is equipped with of transverse groove, locating component includes slider, positioning spring and L type locating lever, the last groove face and the transverse groove sliding connection of transverse groove are located to the slider, positioning spring's both ends are connected with the side slot face of slider and transverse groove respectively, the one end and the slider fixed connection of L type locating lever, the other end of L type locating lever is the location end, the location end passes in positioning groove is located to the through-hole on the positioning groove, be equipped with the locating piece corresponding with positioning groove in the box body, be equipped with on the locating piece and hold corresponding constant head tank with the location.
2. The device for continuously changing electricity for the ammeter according to claim 1, wherein the fixing assembly comprises a latch hook, a first connecting rod, a second connecting rod, a latch hook spring and a fixing button, the latch hook is rotatably mounted on the box body, one end of the latch hook is hooked and arranged outside the box body, the other end of the latch hook is arranged inside the box body and fixedly connected with one end of the first connecting rod, the other end of the first connecting rod is rotatably connected with the second connecting rod, two ends of the latch hook spring are fixedly connected with one ends of the second connecting rod and the fixing button respectively, the other end of the fixing button is arranged outside the box body, and the jointing clamp is provided with a groove corresponding to the latch hook.
3. The device for continuously changing electricity meters according to claim 1, wherein the conduction piece comprises a conduction ring, a conduction groove and a conduction connection sheet, the conduction ring is connected with the conduction groove through the conduction connection sheet, the inner wall of the conduction ring is provided with threads, the threads are consistent with those of the screw hole, and the inner diameter of the conduction groove is consistent with the outer diameter of the short connection column.
4. The device for continuously switching the electricity supply meter according to claim 1, wherein an outer insulating sheath is fixedly arranged at a position, out of which the short-circuit column penetrates, on the box body, an inner insulating sheath which extends out of or retracts back along with the short-circuit column is arranged on the short-circuit column, and the short-circuit column and the inner insulating sheath penetrate through the outer insulating sheath.
5. The device for continuously changing electricity according to claim 1, wherein a guide rail is arranged on the box body along the moving direction of the conducting sheet and the T-shaped groove, and the conducting sheet and the T-shaped groove are both in sliding connection with the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112881767B (en) * | 2021-01-12 | 2022-09-27 | 国网浙江省电力有限公司湖州供电公司 | Safe uninterrupted power supply electric energy meter device |
| CN112858746B (en) * | 2021-01-15 | 2023-06-02 | 国网上海市电力公司 | Electric energy meter on-site verification special power strip and use method |
| CN114614311A (en) * | 2022-03-17 | 2022-06-10 | 中航光电科技股份有限公司 | Connector plug, socket and assembly capable of reducing insertion and extraction force |
| CN114924104B (en) * | 2022-07-20 | 2022-09-23 | 国网辽宁省电力有限公司 | Non-sensing, non-destructive replacement device for watt-hour meter |
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