阅读说明：本技术 一种不断电换电表的装置及方法 (Device and method for changing electricity meter without power interruption ) 是由 周旻 江锡忠 朱晔 冯跃亮 刘惺惺 畅伟 潘建乔 傅晓平 李南 吴昱德 葛俊杰 于 2020-05-21 设计创作，主要内容包括：本发明涉及电表技术领域,具体涉及一种不断电换电表的装置及方法,包括接线夹和短接器,接线夹包括上夹块、下夹块、若干个破皮螺钉和若干个接线头,上夹块和下夹块贴合时形成若干个用于容纳导线的穿线孔,电表的接线被固定在穿线孔内,破皮螺钉以及接线头的数量与穿线孔的数量匹配,破皮螺钉沿穿线孔径向拧入上夹块,破皮螺钉的尾部为平端面,破皮螺钉尾部加工有直槽,随着破皮螺钉的拧入,破皮螺钉的尾部破开导线绝缘皮并与导线芯接触,接线头镶嵌在上壳体内并露出上壳体,接线头与破皮螺钉连接,破皮螺钉为导体。本发明的实质性效果是：更换电表时不需要停电,减少对用户的停电次数,能够适用对旧表的不断电更换。(The invention relates to the technical field of electric meters, in particular to a device and a method for changing an electric meter without power interruption, and the device comprises a jointing clamp and a short connector, wherein the jointing clamp comprises an upper clamping block, a lower clamping block, a plurality of skin breaking screws and a plurality of jointing heads, a plurality of threading holes for accommodating wires are formed when the upper clamping block and the lower clamping block are attached, the wiring of the electric meter is fixed in the threading holes, the number of the skin breaking screws and the number of the jointing heads are matched with the number of the threading holes, the skin breaking screws are screwed into the upper clamping block along the radial direction of the threading holes, the tail parts of the skin breaking screws are flat end surfaces, straight grooves are processed at the tail parts of the skin breaking screws, the tail parts of the skin breaking screws break insulating skins of the wires and are in contact with wire cores along with the screwing of the skin breaking screws, the jointing heads are embedded in the upper shell and expose the upper. The substantial effects of the invention are as follows: the electricity meter is not required to be powered off when being replaced, the number of times of power failure to a user is reduced, and the electricity meter can be suitable for uninterrupted replacement of an old meter.)

1. A device for changing electricity meters without power interruption is characterized in that,

comprises a jointing clamp and a short-circuit device,

the wiring clamp comprises an upper clamping block, a lower clamping block, a plurality of bark breaking screws and a plurality of wiring heads, a plurality of threading holes used for accommodating wires are formed when the upper clamping block and the lower clamping block are attached, the number of the threading holes is matched with the number of the wiring of an ammeter, the wiring of the ammeter appears in pairs, one paired wiring is connected with a bus and the ammeter, the other paired wiring is connected with the ammeter and a user, the wiring of the ammeter is fixed in the threading holes, the number of the bark breaking screws and the number of the wiring heads are matched with the number of the threading holes, the bark breaking screws are screwed into the upper clamping block along the radial direction of the threading holes, the tail parts of the bark breaking screws are flat end surfaces, straight grooves are processed at the tail parts of the bark breaking screws, the tail parts of the bark breaking screws break insulating skins of the wires and contact with wire cores along with the screwing of the bark breaking screws, the wiring heads are embedded in the upper shell and expose the, the skin-breaking screw is a conductor,

the short connector comprises a shell, a plurality of connecting rods, a plurality of short connection blocks and a push rod, the connecting rods are fixed on the shell, the number of the connecting rods is matched with the number of the connector lugs, the connecting rods are connected with the connector lugs, the connecting rods connected with paired wiring of the ammeter are short-connected through the short connection blocks, guide rails used for slidably mounting the short connection blocks are arranged in the shell, and the push rod is fixedly connected with the short connection blocks and used for pushing the short connection blocks to slide.

2. The device for continuously changing electricity meters according to claim 1,

and an ammeter is installed on the short connector and is used for the short connecting rod after being connected with the short connecting block in series.

3. An uninterruptible power supply apparatus according to claim 1 or 2, wherein the uninterruptible power supply apparatus further comprises a power supply unit,

the short connector is provided with a telescopic hook, the telescopic hook is driven by a push rod, and a hanging hole matched with the telescopic hook is processed on the upper clamping block.

4. An uninterruptible power supply apparatus according to claim 1 or 2, wherein the uninterruptible power supply apparatus further comprises a power supply unit,

the short connector further comprises a plurality of telescopic sheaths which are sleeved outside the connecting rod.

5. An uninterruptible power supply apparatus according to claim 1 or 2, wherein the uninterruptible power supply apparatus further comprises a power supply unit,

the short connector further comprises a plurality of electrified indicating lamps, the electrified indicating lamps are connected with the connecting rod, and the electrified indication is lightened when the connecting rod is electrified.

6. An uninterruptible power supply apparatus according to claim 1 or 2, wherein the uninterruptible power supply apparatus further comprises a power supply unit,

in the screwing-in process of the skin breaking screw, when the tail part of the skin breaking screw is firstly contacted with the insulating skin, the extending direction of the straight groove at the tail part of the skin breaking screw is basically parallel to the extending direction of the threading hole.

7. An uninterruptible power supply apparatus according to claim 1 or 2, wherein the uninterruptible power supply apparatus further comprises a power supply unit,

the middle of the peeling screw is provided with a wiring part with a smooth outer surface, and the wiring part is connected with a wiring head.

8. An uninterruptible power supply apparatus according to claim 1 or 2, wherein the uninterruptible power supply apparatus further comprises a power supply unit,

the binding clip still includes a plurality of fastening screw, it has a plurality of through-holes that are used for passing fastening screw to go up clamp splice processing, down clamp splice processing have quantity and position with the blind hole that the through-hole corresponds, the blind hole processing has the internal thread, fastening screw pass after the clamp splice with clamp splice threaded connection down, have placed the elastic gasket between fastening screw and the last clamp splice.

9. An uninterruptible power supply apparatus according to claim 1 or 2, wherein the uninterruptible power supply apparatus further comprises a power supply unit,

in the screwing-in process of the skin breaking screw, when the tail of the skin breaking screw is firstly contacted with the insulating skin, the extending direction of the straight groove at the tail of the skin breaking screw is basically parallel to the extending direction of the threading hole, and when the skin breaking screw is screwed in, the extending direction of the straight groove at the tail of the skin breaking screw is basically vertical to the extending direction of the threading hole.

10. A method for continuously replacing electric energy meters by using the device for continuously replacing electric energy meters according to any one of the claims 1 to 9,

the method comprises the following steps:

A) pre-installing a skin breaking screw, and setting the number D of screwing turns required for screwing the skin breaking screw from a pre-installing position to a final position according to the thickness of a wiring insulating layer of the ammeter to be replaced;

B) clamping an upper clamping block and a lower clamping block of a binding clip on a wiring of an ammeter, and fixing the upper clamping block and the lower clamping block;

C) screwing the skin breaking screw for D turns, and connecting the connecting rod of the short connector with the connector lug of the jointing clamp;

D) pushing the push rod to enable the connecting rods connected with the paired connecting wires of the electric meter to be in short circuit;

E) observing the change rate of the metering quantity of the ammeter to be changed before and after the connecting rod is in short circuit or directly reading the change of current, and judging whether the ammeter to be changed is in short circuit or not;

F) if the electricity meter to be changed is short-circuited, removing the connection of the electricity meter to be changed, removing the electricity meter to be changed, installing a new electricity meter and connecting the connection to the new electricity meter;

G) reversely pushing the push rod to separate the connecting rods connected with the paired connecting wires of the ammeter from short circuit, and pulling out the short circuit device;

H) and the wiring clamp and the wiring part of the new electric meter are covered in a sealing cover of the electric meter, and a seal is connected.

Technical Field

The invention relates to the technical field of electric meters, in particular to a device and a method for changing an electric meter without power interruption.

Background

The electric meter is a device for metering the electricity consumption of a user and is a basis for carrying out expense settlement between a power supply enterprise and the user. The metering of the electric meter is accurate, namely the electric meter is used for guaranteeing fair electricity consumption transaction and is also an important basis for normal operation and scheduling of a power grid. And the electric energy meter in operation can have the error out of tolerance because of the influence of environmental conditions, such as temperature, humidity and the ageing of components and parts of self. Therefore, the current power supply enterprises adopt a mode of forced electric meter retirement rotation for 6-8 years, and the accuracy of electric meter metering is guaranteed. The periodic rotation of the electric meters is a part of closed-loop management of a power supply enterprise and plays a role in operation quality supervision. The rotation period of the electric energy meter with long service life or the electric energy meter with high quality can be properly prolonged, and the performance of the electric energy meter are checked and checked stably after long-term operation. When the ammeter is replaced, the user is required to be powered off when the incoming line is cut off, and the electricity is supplied again after the replacement is completed. Although the time required for replacing the electric meter is only a few minutes for each household, the power is cut off on the whole floor, and the power supply is recovered after all the electric meters are replaced. Along with the development of economy and science and technology, more and more intelligent electrical appliances are used by users, and the tolerance to power failure is lower and lower. Although the period of 6-8 years is long, the user still has great trouble when the electricity meter is replaced after power failure, and meanwhile, a power supply enterprise loses a great deal of economic benefits. Therefore, a technical scheme for continuously changing the electricity meter needs to be developed.

For example, chinese patent CN209231381U, published 2019, 8, 9, a uninterruptible power replacement ammeter combiner includes a socket assembly inserted in an ammeter box and an uninterruptible power replacement ammeter combiner inserted in the socket assembly when replacing the ammeter in an uninterruptible power; the uninterrupted replacement ammeter combiner comprises a shell, a conduction piece, a plug post, a reset spring, a push button, an unlocking button, a lock spring, a rotating lock hook, a push hook button, a lock hook push-pull piece, a lock hook reset spring, a push-pull piece lock spring, a lock hook unlocking button and a lock hook unlocking spring, wherein the push button, the unlocking button and the push hook button are respectively arranged on the shell in a relatively movable manner; the lock spring is accommodated in the shell, one end of the lock spring is connected with the shell, the other end of the lock spring is positioned on a track pushed by the pushing button of the conduction piece, one end of the unlocking button is positioned outside the shell, the other end of the unlocking button is connected with the other end of the lock spring, and the other end of the lock spring is abutted against the conduction piece after the insertion column is pushed out of the shell; the rotary lock hook is rotatably arranged in the shell, one end of the rotary lock hook is in a hook shape, the other end of the rotary lock hook is connected with the lock hook push-pull piece, one end of the push hook button is positioned outside the shell, the other end of the push hook button is connected with the lock hook push-pull piece, a lock hook reset spring is arranged between one end of the lock hook push-pull piece and the inner wall of the shell, and the other end of; one end of the push-pull piece locking spring is arranged in the shell, the other end of the push-pull piece locking spring is inserted into the opening, and the push-pull piece of the locking hook pushes and pulls the end part of the other end of the locking hook push-pull piece after driving the rotating locking hook to rotate; a lock hook unlocking button corresponding to the lock spring of the push-pull piece is arranged on the shell, a lock hook unlocking spring is sleeved on the lock hook unlocking button, and the other end of the lock spring of the push-pull piece is pressed through the lock hook unlocking button to realize the unlocking of the push-pull piece of the lock hook; the socket assembly comprises a socket, a connector and a lead sealing cover, wherein the socket is provided with the connector inserted with the ammeter box, the socket is provided with a jack, and the insertion column is inserted into the jack and abutted against the connector when the ammeter is replaced without power interruption; the lead sealing cover is hinged on the socket, covers the jack in a non-working state and seals the jack through lead sealing; the socket is provided with a hook groove corresponding to the hook-shaped end of the rotating lock hook. The technical scheme is that a connector on a socket is plugged with an electric meter box according to the actual position of the electric meter box in a non-working state, and the electric meter is installed. Namely, the plug connector needs to be installed when the electric meter is newly installed. The technical scheme is not suitable for replacing the old meter without power interruption, and the application range is very limited.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: at present, the technical problem of uninterrupted power supply for electricity conversion is lacked. The device and the method for changing the electric meter without power interruption are provided, do not need to be preassembled, and can be suitable for changing the old electric meter without power interruption.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a device for replacing an ammeter in a non-power-off mode comprises a wiring clamp and a short connector, wherein the wiring clamp comprises an upper clamping block, a lower clamping block, a plurality of bark breaking screws and a plurality of wiring heads, a plurality of threading holes used for containing wires are formed when the upper clamping block and the lower clamping block are attached, the number of the threading holes is matched with the number of the wiring of the ammeter, the wiring of the ammeter occurs in pairs, one of the paired wiring is connected with a bus and the ammeter, the other wiring is connected with the ammeter and a user, the wiring of the ammeter is fixed in the threading holes, the number of the bark breaking screws and the number of the wiring heads are matched with the number of the threading holes, the bark breaking screws are screwed into the upper clamping block along the threading holes in the radial direction, the tail of the bark breaking screws is a flat end face, straight grooves are machined at the tail parts of the bark breaking screws, the tail parts of the bark breaking screws break insulating skins of the wires and are contacted with wire cores, the wiring, the utility model discloses a short circuit ware, including the ammeter, the connector lug is connected with the connector lug, the connector lug is connected with broken skin screw, the broken skin screw is the conductor, the short circuit ware includes casing, a plurality of connecting rod, a plurality of short circuit piece and push rod, the connecting rod is fixed on the casing, connecting rod quantity matches with connector lug quantity, and the connecting rod is connected with the connector lug, and the connecting rod of being connected with the mated wiring of ammeter is by the short circuit piece short circuit, be provided with the guide rail that is used for slidable mounting short circuit piece in the casing, push rod and short circuit piece fixed connection for promote the short. Can directly be on the wiring of ammeter through the binding clip, then be connected with the short connector, will flow through most electric current reposition of redundant personnel of ammeter, make the ammeter directly dismantle and change under the circumstances of not cutting off the power supply, the user supplies power unaffected. If a temporary metering device is installed on the binding clip, the user's electricity usage will also be metered during the replacement of the electricity meter. Can directly connect out the branch line on the wiring of ammeter through the binding clip, need not install the subassembly in advance when the ammeter newly, save the cost to be suitable for the uninterrupted power change of old ammeter. The broken principle of binding clip is when broken skin screw is twisted in, at first causes the extrusion to insulating skin, and the groove of opening simultaneously makes during the insulating skin card of part goes into the groove, broken skin screw continues to rotate, and the insulating skin in the card income groove forms along with rotatory: (1) the insulation skin in the clamping groove tears the insulation skin around to form a crevasse, (2) the smooth tail end face of the skin-breaking screw pushes the insulation skin with the crevasse to make the insulation skin deform and retreat to the periphery, so that the crevasse is enlarged, and finally the insulation skin crevasse with few chips and large crevasse is formed. Broken skin screw and wire core butt back carry out a small amount of precession again, make broken skin screw afterbody and wire core all take place a small amount of deformations, make the line contact enlarge into the face contact, promote the conducting capacity of binding clip by a wide margin. The tail part of the skin breaking screw is mainly a flat surface, so that the deformation of the wire core is the integral flattening, the surface layer of the wire core cannot be cut and cut, and the conductivity of the wire core is not greatly influenced by a small amount of deformation under the condition that the surface layer of the metal conductor is not cut and cut. The pushed-away insulating skin is gathered around the tail part of the skin breaking screw to form the enclosure of the tail part of the skin breaking screw, the elasticity of the insulating skin can extrude the tail part of the skin breaking screw, and the insulativity of the joint is improved. For puncture fastener, the binding clip disclosed by this scheme: the influence on the conductivity of the connection is small, and the method is suitable for restoring the power supply to users for a long time after the ammeter is replaced by the connection; the contact surface with the wire core is bigger during wiring, the contact is more reliable, the shunting capacity is strong, and the replacement process of the ammeter is safer.

Preferably, an ammeter is installed on the short connector, and the ammeter and the short connection block are connected in series and then are used for the short connection connecting rod. Can observe the shunt capacity of short circuit ware through the ampere meter, judge whether the short circuit ware is well connected, improve the security of ammeter change process.

Preferably, the short connector is provided with a telescopic hook, the telescopic hook is driven by a push rod, and a hanging hole matched with the telescopic hook is processed on the upper clamping block. Avoid the short connector to drop at the table in-process that trades, cause danger for constructor.

Preferably, the short connector further comprises a plurality of telescopic sheaths, and the telescopic sheaths are sleeved outside the connecting rod. The safety of short circuit ware can be improved.

Preferably, the short connector further comprises a plurality of electrified indicating lamps, the electrified indicating lamps are connected with the connecting rod, and the electrified indication is lightened when the connecting rod is electrified. The pilot lamp can instruct the connecting rod whether electrified, and whether supplementary operating personnel inspection short connector is correctly connected, improves the security of short connector.

Preferably, the head of the skin breaking screw has a hardness smaller than that of the wire core. The tail of the skin breaking screw is made of softer material than the wire core, and more deformation occurs at the tail of the skin breaking screw.

Preferably, the head of the skin breaking screw is an insulator, and the rest part of the skin breaking screw is a conductor. The safety of the jointing clamp is improved.

Preferably, the middle part of the skin breaking screw is provided with a wire connecting part with a smooth outer surface, and the wire connecting part is connected with the wire connecting head. The broken screw and the connector lug are well connected.

Preferably, the jointing clamp further comprises a plurality of fastening screws, a plurality of through holes used for penetrating the fastening screws are formed in the upper clamping block, blind holes corresponding to the through holes in number and position are formed in the lower clamping block, internal threads are formed in the blind holes, the fastening screws penetrate through the upper clamping block and then are in threaded connection with the lower clamping block, and elastic gaskets are placed between the fastening screws and the upper clamping block. The elastic gasket can prevent the upper clamping block and the lower clamping block from loosening, and the safety of the wiring clamp is ensured when the wiring clamp is used for a long time.

Preferably, in the screwing-in process of the skin breaking screw, when the tail part of the skin breaking screw is firstly contacted with the insulation skin, the extending direction of the straight groove at the tail part of the skin breaking screw is basically parallel to the extending direction of the threading hole, and when the screwing-in process of the skin breaking screw is completed, the extending direction of the straight groove at the tail part of the skin breaking screw is basically vertical to the extending direction of the threading hole. When the tail of the skin breaking screw is contacted with the insulation skin for the first time, the extending direction of the straight groove of the tail of the skin breaking screw is basically parallel to the extending direction of the threading hole, more insulation skins can be clamped in, the skin breaking effect is improved, and the contact area of the tail of the skin breaking screw and the lead core can be improved.

A method for continuously powering up a electricity meter using a device for continuously powering up a electricity meter, comprising the steps of: A) pre-installing a skin breaking screw, and setting the number D of screwing turns required for screwing the skin breaking screw from a pre-installing position to a final position according to the thickness of a wiring insulating layer of the ammeter to be replaced; B) clamping an upper clamping block and a lower clamping block of a binding clip on a wiring of an ammeter, and fixing the upper clamping block and the lower clamping block; C) screwing the skin breaking screw for D turns, and connecting the connecting rod of the short connector with the connector lug of the jointing clamp; D) pushing the push rod to enable the connecting rods connected with the paired connecting wires of the electric meter to be in short circuit; E) observing the change rate of the metering quantity of the ammeter to be changed before and after the connecting rod is in short circuit or directly reading the change of current, and judging whether the ammeter to be changed is in short circuit or not; F) if the electricity meter to be changed is short-circuited, removing the connection of the electricity meter to be changed, removing the electricity meter to be changed, installing a new electricity meter and connecting the connection to the new electricity meter; G) reversely pushing the push rod to separate the connecting rods connected with the paired connecting wires of the ammeter from short circuit, and pulling out the short circuit device; H) and the wiring clamp and the wiring part of the new electric meter are covered in a sealing cover of the electric meter, and a seal is connected.

The substantial effects of the invention are as follows: (1) the electricity meter is not required to be powered off when being replaced, so that the power failure times of a user are reduced, and the user experience is improved; (2) the device does not need to be preassembled, can be suitable for the uninterrupted replacement of the old meter, and is convenient to use; (3) the contact of the junction of the jointing clamp and the electric meter is surface contact, the electric conduction capability is strong, the damage to the conductor core of the joint is small, and the subsequent power supply of a user is not influenced after the electric meter is replaced; (4) the pilot lamp can instruct the connecting rod whether electrified, and whether supplementary operating personnel inspection short connector is correctly connected, improves the security of short connector.

Drawings

Fig. 1 is a schematic view of a structure of a wire clamp according to an embodiment.

Fig. 2 is a schematic diagram of a connection clip and a short according to an embodiment.

Fig. 3 is a schematic cross-sectional view of a clip according to an embodiment.

FIG. 4 is a schematic diagram of a short circuit connection according to an embodiment.

FIG. 5 is a schematic cross-sectional view of a skin-breaking screw according to an embodiment

Fig. 6 is a schematic structural view of a skin-breaking screw according to an embodiment.

Fig. 7 is a schematic structural view of a second peel screw according to an embodiment.

FIG. 8 is a schematic diagram showing the peeling effect of the comparative example.

FIG. 9 is a graph showing the effect of the comparative example on the wire core.

Wherein: 1. the wire connector comprises a lower clamping block, 2, an upper clamping block, 3, a fastening screw, 4, a skin breaking screw, 5, a connector lug, 6, a wire core, 7, an insulating skin, 8, an ammeter, 9, a connector lug, 10, a short connector, 11, a gasket, 12, a threading hole, 101, a shell, 102, a push rod, 103, an ammeter, 104, a short connecting block, 105, a connecting rod, 106, a telescopic sheath, 401, a head, 402, a wiring part, 403, a threaded part, 404, a tail, 4-1, two edges, 4-2, a cross groove, 4-3 and four edges.

Detailed Description

The following provides a more detailed description of the present invention, with reference to the accompanying drawings.