CN208060589U - Not electricity cut-off type meter alternating apparatus - Google Patents

Abstract

The utility model discloses a kind of not electricity cut-off type meter alternating apparatus, belong to circuit field, including fitting, short circuit part includes shank part and cylindrical short circuit portion, short circuit portion includes No.1 short circuit portion and No. two short circuit portions, and No.1 short circuit portion and No. two shorted sections are not fixedly installed on the both ends of shank part；Shank part includes conductive lever internal layer and is fixed on the insulation lever outer layer of conductive lever internal layer surface, No.1 short circuit portion and No. two short circuit portions include conductive shorting internal layer and the insulation short circuit outer layer for being fixed on conductive shorting internal layer surface, insulation short circuit outer layer is rotatably mounted on insulation lever outer layer, and the bottom of insulation short circuit outer layer is fixedly installed slip teeth.The utility model utilizes short circuit part connection circuit, forms the replacement circuit of single-phase meter so that single-phase meter can be detached from the circuit of working condition, realize the effect of stand-by circuit so that user need not power off in single-phase meter replacement process.

Description

Not electricity cut-off type meter alternating apparatus

【Technical field】

The utility model is related to a kind of not electricity cut-off type meter alternating apparatus.

【Background technology】

According to DLT448《Electric energy metering device rule of management》Regulation, the rotational cycle of running VI classes electric energy meter is 4-6.Since VI class electric energy meters do not have combined connection box, need to pull open inlet wire disconnecting link deenergization when dismounting meter, or When removing meter, secondary circuit disconnection leads to the temporary power failure of user.

The main reason for replacing single-phase meter power-off is single-phase meter as necessary element in raw power, thus cannot achieve It replaces, and effective means there is no to release single-phase meter from circuit at this stage.

【Utility model content】

In order to solve the above-mentioned technical problem, the utility model provides a kind of not electricity cut-off type meter alternating apparatus.

Technical solution provided by the utility model is：A kind of not electricity cut-off type meter alternating apparatus, including be used to be plugged on not Short circuit part in the single-phase resident's ammeter rotation of interruptedly supplying power and breakdown repair device, short circuit part include shank part and cylindrical short Socket part, short circuit portion include No.1 short circuit portion and No. two short circuit portions arranged in parallel, and the shape of shank part is arc, and No.1 is short Socket part and the shape in No. two short circuit portions are cylinder, and No.1 short circuit portion and No. two shorted sections are not fixedly installed on shank part Both ends；Shank part includes conductive lever internal layer and is fixed on the insulation lever outer layer of conductive lever internal layer surface, No.1 short circuit portion With No. two short circuit portions including conductive shorting internal layer and the insulation short circuit outer layer for being socketed in conductive shorting internal layer surface, conductive lever Internal layer and conductive shorting internal layer are integrally formed, and insulation short circuit outer layer is rotatably mounted on conductive shorting internal layer, is insulated outside short circuit The bottom fixed setting of layer is useful for and the mutually matched slip teeth of tooth socket.

The shape of shank part described in the utility model is semicircular arc, and No.1 short circuit portion and No. two short circuit portions are tangential on and hold The end of shank, the top of conductive shorting internal layer are provided with the fluting of annular, and the top of insulation short circuit outer layer is provided with and slots The rotating member that shape matches, rotating member are socketed in fluting, and rotating member is integrally formed with insulation short circuit outer layer, and fluting turns Moving part and the coaxial arrangement of short circuit portion.

The utility model compared with prior art, using the conductive shorting internal layer connection circuit of short circuit part, forms single-phase meter Replacement circuit so that single-phase meter can be detached from the circuit of working condition, realize the effect of stand-by circuit so that User need not power off in single-phase meter replacement process.Slip teeth is used to cooperate with tooth socket, convenient for short circuit part in replacement circuit It is installed on dismounting.

【Description of the drawings】

Fig. 1 is a kind of main structure diagram of installation condition of the utility model embodiment.

Fig. 2 is the equivalent circuit diagram of Fig. 1.

Fig. 3 is the main structure diagram of the utility model embodiment another kind installation condition.

Fig. 4 is the equivalent circuit diagram of Fig. 3.

Fig. 5 is the main structure diagram of the utility model embodiment shackle member.

Fig. 6 is the present invention looks up structural representation of the utility model embodiment shackle member.

Fig. 7 is the main structure diagram of the utility model embodiment short circuit part.

Fig. 8 be in Fig. 7 A-A to schematic cross-sectional view.

Fig. 9 is the main structure diagram of the utility model embodiment conduction lever internal layer and conductive shorting internal layer.

【Specific implementation mode】

The technical solution of the utility model embodiment is explained with reference to the attached drawing of the utility model embodiment and Illustrate, but following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode, Those skilled in the art's obtained other embodiment without making creative work, belongs to the utility model Protection domain.

In the following description, occur the indicating positions such as term "inner", "outside", "upper", "lower", "left", "right" or Position relationship is to be based on the orientation or positional relationship shown in the drawings, description embodiment merely for convenience and simplified description, and It is not instruction or implies that signified device or element must have a particular orientation, with specific azimuth configuration and operation, because This should not be understood as limiting the present invention.

Embodiment.

Referring to Fig. 1-4.

Present embodiments provide a kind of single-phase resident's ammeter rotation of uninterrupted power supply and breakdown repair device, including device sheet No.1 electricity entrance A2 is offered on body A1, device body A1, No.1 electricity exports A3, No. two electric entrance A5, No. two electricity export A6, total Electric entrance A7 and total electricity export A8.No.1 electricity entrance A2 and No.1 electricity outlet A3 are used to connect with single-phase meter A4, No. two electricity Entrance A5 and No. two electricity outlet A6 are used to connection short circuit part, and total electricity entrance A7 and total electricity export 8 for connecting external circuit.

Test circuit is fixedly installed in device body A1, test circuit includes input circuit and output circuit.

Total electricity entrance A7 enters electric end for input circuit, and No.1 electricity entrance A2 and No. two electricity entrance A5 are input circuit Current output terminal.No.1 electricity entrance A2 or No. two electricity entrance A5 is electrically connected with total electricity entrance A7.External current is by total electric entrance A7 streams After entering, there is a possibility that flow to No.1 electricity entrance A2 flowings and to No. two electric entrance A5.

It is that output circuit enters electric end that No.1 electricity, which exports A3 and No. two electricity outlet A6, and total electricity outlet A8 is output circuit Current output terminal.No.1 electricity exports A3 and No. two electricity outlet A6 and is electrically connected with total electricity outlet A8.Be separately provided it is still not used not between It is open circuit between No.1 electricity entrance A2 and No.1 electricity outlet A3 in the single-phase resident's ammeter rotation of cut-off electricity and breakdown repair device, It is open circuit between No. two electricity entrance A5 and No. two electricity outlet A6.It is filled in the single-phase resident's ammeter rotation of uninterrupted power supply and breakdown repair It sets under use state, is connected between No.1 electricity entrance A2 and No.1 electricity outlet A3, electric current flows into No.1 electricity by No.1 electricity entrance A2 A3 is exported, and then flows to total electricity outlet A8, alternatively, being connected between No. two electricity entrance A5 and No. two electricity outlet A6, electric current is by No. two Electric entrance A5 flows into No. two electricity outlet A6, and then flows to total electricity outlet A8.

Preferably, input circuit includes single-pole double-throw switch (SPDT) A16, total electricity entrance A7 and single-pole double-throw switch (SPDT) A16 is not Moved end is connected, and moved end and the No.1 electricity entrance A2 or No. two electricity entrance A5 of single-pole double-throw switch (SPDT) A16 are electrically connected.Single-pole double-throw switch (SPDT) The current direction No.1 electricity entrance A2 or No. two electric entrance A5 of the total electric entrance A7 of A16 controls avoids electricity to select a flowing Stream flows to No.1 electricity entrance A2 and No. two electric entrance A5 from total electricity entrance A7 simultaneously.I.e. in the single-phase resident's ammeter wheel of uninterrupted power supply Change and breakdown repair device use during, electric current only selects a flowing in single-phase meter A4 and short circuit part.

Preferably, being provided with for single-pole double-throw switch (SPDT) of connecting between single-pole double-throw switch (SPDT) A16 and No. two electric entrance A5 The protection circuit of the moved end of A16 and No. two electric entrance A5.Wherein, protection circuit includes the thermistor being sequentially connected in series, definite value electricity Resistance, slide rheostat and ammeter.Fixed value resistance avoids electric current excessive, and electric current is measured by ammeter, passes through thermistor Certain reasonable value is maintained with slide rheostat control electric current, maintains electric current excessive without additionally occupying at a certain size Power influences user.

In addition, never including switch in output circuit.Due to incorrect switching or fail to check in advance, between causing not The single-phase resident's ammeter rotation of cut-off electricity and breakdown repair device open circuit.And the single-pole double-throw switch (SPDT) A16 in input circuit always can Holding input circuit is connected state.If single-pole double-throw switch (SPDT) A16 is arranged in output circuit, will produce and the list in input circuit The unmatched problems of double-pole double throw switch A16 so that even if under single-phase meter A4 or short circuit part and device body A1 attached states, by Single-pole double-throw switch (SPDT) A16 gears mismatch in single-pole double-throw switch (SPDT) A16 and output circuit in input circuit causes user Power-off.

Referring to Fig. 1,3.Wherein, it is both provided on No. two electricity entrance A5 and No. two electricity outlet A6 for being mutually clamped with short circuit part Shackle member A11.

Referring to Fig. 5-6.

Shackle member A11 includes cylindrical insulation outer shroud A12 and the conductive inner ring 13 that is set on the inside of the outer shroud A12 that insulate, The outer wall of insulation outer shroud A12 is fitted in the outer wall of conductive inner ring A13.Insulation outer shroud A12 plays the work of fixed conductive inner ring 13 With so that the stable connection of itself and short circuit part prevents poor contact, so as to cause being caused when replacing single-phase meter A4 completely Open circuit so that device failure and user's power-off.

Be provided with latch A14 at the top of insulation outer shroud A12, insulation outer shroud A12, latch A14 and device body A1 it is integrated at Type is arranged.No matter insulation outer shroud A12 or latch A14 volumes are all smaller, non-integral molding fixed form was easily using It causes abrasion to be detached from journey, the concatenation ability of insulation outer shroud A12 and insulation effect is caused to be a greater impact.Simultaneously because card Tooth A14's falls off, and the contact of short circuit part can be caused ineffective, and then enhances contact resistance.In addition, adjacent latch A14 it Between form tooth socket A15 for being engaged short circuit part, tooth socket A15 is used to connect short circuit part from outside, and fit system is in this implementation Example subsequently illustrates.

The present embodiment is additionally provided for being plugged on the single-phase resident's ammeter rotation of uninterrupted power supply and breakdown repair device Short circuit part.

Referring to Fig. 7-9.

Short circuit part includes shank part B1 and cylindrical short circuit portion, and short circuit portion includes No.1 short circuit portion arranged in parallel The shape of B2 and No. two short circuit portion B3, shank part B1 are arc, and the shape of No.1 short circuit portion B2 and No. two short circuit portion B3 are circle Cylindricality, No.1 short circuit portion B2 and No. two short circuit portion B3 are fixedly installed on the both ends of shank part B1 respectively.Shank part B1 is on the one hand suitable It closing and grasps, convenient artificial drive No.1 short circuit portion B2 and No. two short circuit portion B3 are inserted into No. two electricity entrance A5 and No. two electricity outlet A6, On the other hand so that No.1 short circuit portion B2 and No. two short circuit portion B3 pulls open a determining deviation, short circuit is prevented.

Shank part B1 includes conductive lever inner layer B 5 and is fixed on the insulation lever outer layer B6 on conductive 5 surface of lever inner layer B. No.1 short circuit portion B2 includes conductive shorting inner layer B 7 and is fixed on the insulation short circuit outer layer B8 on 7 surface of conductive shorting inner layer B.No. two Short circuit portion B3 also includes conductive shorting inner layer B 7 and the insulation short circuit outer layer B8 for being fixed on 7 surface of conductive shorting inner layer B.

Conduction in conductive lever inner layer B 5, the conductive shorting inner layer B 7 in No.1 short circuit portion B2 and No. two short circuit portion B3 is short Connect the integrated molding of inner layer B 7.

Insulation short circuit outer layer B8 is rotatably mounted on insulation lever outer layer B6.Wherein, the insulation of No.1 short circuit portion B2 is short Connect the left end that outer layer B8 is rotatably mounted on insulation lever outer layer B6, the insulation short circuit outer layer B8 rotary types peace of No. two short circuit portion B3 Mounted in the right end of insulation lever outer layer B6.

The bottom of the insulation short circuit outer layer B8 of the bottom of the insulation short circuit outer layer B8 of No.1 short circuit portion B2 and No. two short circuit portion B3 Portion, which is fixedly installed, to be useful for and the mutually matched slip teeth B4 of tooth socket A15.When slip teeth B4 is located in tooth socket A15, slip teeth B4 with Tooth socket A15 engages completely, while slip teeth B4 can be slided with the rotation of No.1 short circuit portion B2 and No. two short circuit portion B3 in tooth socket A15 It is dynamic.

Slip teeth B4 coordinates with tooth socket A15, and No. two electricity entrance A5 and two are inserted into No.1 short circuit portion B2 and No. two short circuit portion B3 Cushioning effect is played when number electricity outlet A6, and in No.1 short circuit portion B2 and No. two short circuit portion B3 from No. two electricity entrance A5 and No. two electricity Export in A6 withdrawal process, rotation insulation short circuit outer layer B8 makes slip teeth B4 and latch A14 interact, allow No.1 short circuit portion B2 and No. two short circuit portion B3 along its axially be first subjected to displacement, reduce No.1 short circuit portion B2 and No. two short circuit portion B3 and No. two electricity entrance A5 and Frictional force between No. two electricity outlet A6 inner walls, the more conducively extraction of short circuit part.

When needing to install slip teeth B4 into tooth socket A15 or remove slip teeth B4 from tooth socket A15, rotation can be passed through Turn No.1 short circuit portion B2 or No. two short circuit portion B3 are realized.Particularly suitable for No.1 short circuit portion B2 or No. two short circuit portion B3 abnormal mountings The situation in A6 is exported in No. two electricity entrance A5 or with No. two electricity, avoids extracting shank part B1 reluctantly, causes No.1 short circuit portion B2 Or the damage of No. two short circuit portion B3.

Preferably, the shape of shank part B1 is semicircular arc, the shape of especially conduction lever inner layer B 5 is semi arch Shape.The conductive shorting inner layer B 7 of No.1 short circuit portion B2 and the conductive shorting inner layer B 7 of No. two short circuit portion B3 are tangential on shank part B1 End (end of conductive lever inner layer B 5).This method on the one hand so that conductive lever inner layer B 5 with conductive shorting inner layer B 7 Contact resistance minimize, avoid overheating, on the other hand so that conductive shorting inner layer B 7 go out with No. two electricity entrance A5 or No. two electricity Contact resistance between mouth A6 minimizes, and reduces the problem of using poor contact for a long time, reduces the possibility of power-off.

In addition, the top of conductive shorting inner layer B 7 is provided with the fluting B10 of annular, the top setting of insulation short circuit outer layer B8 There are the rotating member B9 to match with fluting B10 shapes, rotating member B9 to be socketed in fluting B10, and rotating member B9 and insulation short circuit Outer layer B8 is integrally formed, fluting B10, rotating member B9 and the coaxial arrangement of short circuit portion.Insulating short circuit outer layer B8 can be around conductive short The rotation of inner layer B 7 is connect, while by the B10 and rotating member B9 that slots, insulation short circuit outer layer B8 facing conductive short circuits inner layer B 7 can not be put down It is dynamic.

The application method of short circuit part is as follows：First external circuit, device body A1 and single-phase meter A4 are set gradually, single-phase meter A4 On offer No. three electricity entrance A9 and No. three electricity outlet A10, then perform the following steps successively：

Step is 1.：Total electricity entrance A7 is electrically connected with external circuit, No.1 electricity entrance A2 and No. three electric entrance A9 electrical connections, No. three Electricity outlet A10 and No.1 electricity outlet A3 electrical connections, No.1 electricity export A3 and are electrically connected with total electricity outlet A8, No.1 electricity entrance A2, three The No.1 that number electric entrance A9, No. three electricity outlet A10 and No.1 electricity outlet A3 forms circulates circuit, and electric current flows into warp from total electric entrance A7 No.1 circulation circuit is flowed out from total electricity outlet A8；Short circuit part is not installed at this time；If installing single-pole double-throw switch (SPDT) in input circuit A16, then the moved end of single-pole double-throw switch (SPDT) A16 is got to and makes total electricity entrance A7 and the A2 energizations of No.1 electricity entrance at this time；

Step is 2.：Short circuit part is installed, the conductive shorting inner layer B 7 of No.1 short circuit portion B2 is electrically connected with No. two electricity entrance A5, The conductive shorting inner layer B 7 of No. two short circuit portion B3 is electrically connected with No. two electricity outlet A6, No. two electric entrance A5, No.1 short circuit portion B2 The electricity of conductive shorting inner layer B 7, two export the conductive shorting inner layer B 7 of A6 and No. two short circuit portion B3 and constitute No. two circulation circuits, Electric current is flowed into from total electric entrance A7 passes through No. two circulation circuits from total electricity outlet A8 outflows；If it is double not install hilted broadsword in input circuit Throw switch A16, then No.1 circulation circuit and No. two circulation circuits are powered in this step；If installing single-pole double throw in input circuit Switch A16, then the moved end of single-pole double-throw switch (SPDT) A16 is got to so that total electricity entrance A7 and No. two electricity entrance A5 is electrically connected in this step It connects, No. two circulation power on circuitry；

Step is 3.：The electrical connection for disconnecting the electric entrance A9 of No.1 electricity entrance A2 and No. three, simultaneously switch off No. three electricity outlet A10 and No.1 electricity exports the electrical connection of A3 so that disconnects No.1 circulation circuit and total electric entrance A7, then replaces single-phase meter A4.

Particularly, the present embodiment step 2. in the installation method of short circuit part include the following steps：Slip teeth B4 is inserted into tooth socket Then A15 rotates insulation short circuit outer layer B8 so that slip teeth B4 is slided in tooth socket A15, until slip teeth B4 is fitted in tooth socket completely In A15, the conductive shorting inner layer B 7 of No.1 short circuit portion B2 is fully inserted in No. two electric entrance A5 at this time, No. two short circuit portion B3's Conductive shorting inner layer B 7 is fully inserted in No. two electricity outlet A6.

Method through this embodiment is completed not to be powered off in user, realizes the replacement of single-phase meter A4, simultaneously After having replaced single-phase meter A4, again by No.1 electricity entrance A2 and No. three electric entrance A9 electrical connections, No. three electricity outlet A10 and No.1 are electric A3 electrical connections are exported, the moved end of single-pole double-throw switch (SPDT) A16, which is got to, makes total electricity entrance A7 and No.1 electricity entrance A2 be powered, and then pulls out Go out or screw out short circuit portion, short circuit part is removed, the single-phase meter A4 after replacement can devote oneself to work again.

Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to In this, it is familiar with the those skilled in the art and should be understood that the utility model includes but not limited to attached drawing and specific embodiment party above Content described in formula.The modification of any function and structure principle without departing from the utility model is intended to be included in claims Range in.

Claims (2)

1. a kind of not electricity cut-off type meter alternating apparatus, it is characterised in that：Including being used to be plugged on the single-phase resident's electricity of uninterrupted power supply Short circuit part in table rotation and breakdown repair device, short circuit part include the short circuit portion of shank part (B1) and cylinder, short circuit portion packet No.1 short circuit portion (B2) arranged in parallel and No. two short circuit portions (B3) are included, the shape of shank part (B1) is arc, and No.1 is short Socket part (B2) and the shape of No. two short circuit portions (B3) are cylinder, and No.1 short circuit portion (B2) and No. two short circuit portions (B3) are solid respectively Surely the both ends of shank part (B1) are set to；Shank part (B1) includes conductive lever internal layer (B5) and is fixed on conductive lever internal layer (B5) the insulation lever outer layer (B6) on surface, No.1 short circuit portion (B2) and No. two short circuit portions (B3) include conductive shorting internal layer (B7) the insulation short circuit outer layer (B8) on the surface conductive shorting internal layer (B7), conductive lever internal layer (B5) and conductive shorting are socketed in and Internal layer (B7) is integrally formed, and insulation short circuit outer layer (B8) is rotatably mounted on conductive shorting internal layer (B7), and insulate short circuit outer layer (B8) bottom fixed setting is useful for and tooth socket (A15) mutually matched slip teeth (B4).

2. not electricity cut-off type meter alternating apparatus according to claim 1, it is characterised in that：The shape of the shank part (B1) For semicircular arc, No.1 short circuit portion (B2) and No. two short circuit portions (B3) are tangential on the end of shank part (B1), in conductive shorting The top of layer (B7) is provided with the fluting (B10) of annular, and the top of insulation short circuit outer layer (B8) is provided with and fluting (B10) shape The rotating member (B9) to match, rotating member (B9) are socketed in fluting (B10), and rotating member (B9) and insulation short circuit outer layer (B8) It is integrally formed, fluting (B10), rotating member (B9) and the coaxial arrangement of short circuit portion.