CN114778912A

CN114778912A - Electric energy meter

Info

Publication number: CN114778912A
Application number: CN202210440532.1A
Authority: CN
Inventors: 郭燕广
Original assignee: Wuhan Wuyan Fire Technology Co ltd
Current assignee: Anhui Rongzhao Intelligent Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-07-22
Anticipated expiration: 2042-04-25
Also published as: CN114778912B

Abstract

The invention relates to the technical field of electric meters, in particular to an electric energy meter which comprises a fixed substrate, a main meter, branch meters, a connecting device and a connecting wire, wherein the main meter and the branch meters are designed to be matched with each other, the main meter can monitor the electricity consumption of a main circuit, the branch meters can monitor the electricity consumption of a branch circuit, the total electricity consumption and the electricity consumption of the branch circuit can be obtained, and the applicability is stronger; in connecting device, rotate the lifting screw and pass through the even board of lift spring lever drive lift and move down, and then the even board of lift drives the contact arch and impresses the electric wire inside the outer contact point simultaneously to practice thrift the time of fixing the electric wire one by one, improve electric wire installation effectiveness.

Description

Electric energy meter

Technical Field

The invention relates to the technical field of electric meters, in particular to an electric energy meter.

Background

The electric energy meter is an instrument for measuring power consumption, and the electric energy meter is usually used by mutually matching an access circuit through a voltage transformer and a current transformer, and the inside power consumption of a certain period of time can be obtained manually by reading the number of the electric energy meter and then reading the difference between the number of the electric energy meter and the number of the electric energy meter through the front side and the back side of the certain period of time.

The traditional electric energy meter is usually connected with a household bus line in the household process, so that the electric energy meter can only record the total household electricity consumption in the electricity consumption monitoring process, but cannot monitor the electricity consumption of a single line in a room, and has the advantages of small application range and poor applicability.

The traditional electric energy meter usually fixes the electric wire on the electric energy meter by using a bolt fastening mode when being connected with the electric wire, and because a live wire, a zero line and a grounding wire are arranged in a circuit, the time consumed for screwing the fastening bolts one by one in the connection process of the electric wire and the electric energy meter is too long, so that the installation efficiency of the electric energy meter is influenced.

Disclosure of Invention

In order to solve the problems, the invention adopts the following technical scheme: the utility model provides an electric energy meter, including fixed baseplate, the summary table, divide the table, connecting device and connecting wire, fixed baseplate up end middle part be provided with the summary table, the spread groove has been seted up to four corners of summary table side, the inside total contact of being provided with a plurality of and the inside electricity of summary table of being connected that is provided with of spread groove, four corners of fixed baseplate up end are provided with the branch table, divide the table to be close to summary table side corner and seted up and connect the branch groove, connect and divide inslot portion to be provided with a plurality of branch contacts of being connected with the inside electricity of branch table, the fixed baseplate up end just is located and is provided with the connecting wire that is used for connecting the total contact and divides the contact between summary table and the branch table, divide the side that the connecting wire was kept away from to the table and seted up connecting groove, connecting groove internally mounted has connecting device.

The connecting device comprises a connecting rack, a lifting connecting plate, a lifting screw rod, a lifting spring rod, an outer contact point, a contact bulge and a connecting part, wherein the connecting rack is arranged in a connecting groove, the front inner wall and the rear inner wall of the connecting groove are provided with the lifting connecting plate in a sliding manner below the connecting rack, the lifting spring rods are symmetrically arranged between the lifting connecting plate and the connecting rack from front to back, the middle part of the connecting rack is screwed with the lifting screw rod, the lower end surface of the lifting screw rod is abutted against the lower end surface of the lifting connecting plate, one side of the lower end surface of the lifting connecting plate, which is close to the master table, is uniformly provided with a plurality of contact bulges from front to back, the bottom of the connecting groove is uniformly provided with a plurality of contact grooves which are in one-to-one correspondence with the contact bulges from front to back, the outer contact point which is electrically connected with the interior of the master table is arranged in the connecting groove, and the connecting parts which are uniformly arranged from front to back and are in one-to-one correspondence with the contact bulges on the lifting connecting plate, the outer side of the bottom of the connecting groove is provided with locking grooves which are in one-to-one correspondence with the connecting parts.

Preferably, the fixed baseplate on evenly seted up and connected the round hole, connect the inside ring channel that is provided with of round hole, divide the table lower extreme face evenly be provided with connect round hole matched with connecting block, the connecting block constitute by connecting the round platform and connecting the arch, wherein the connection round platform install terminal surface under the branch table, connect the round platform lower extreme face bilateral symmetry and install and connect the arch, connect protruding lower extreme and be provided with the direction inclined plane, connect and be provided with on the protruding periphery with ring channel matched with annular protruding.

Preferably, the connecting part comprises an adjusting plate, a reset spring, a connecting spring rod and a locking plate, wherein the lifting connecting plate is internally provided with sliding grooves which are in one-to-one correspondence with the contact grooves from front to back, the side edge of the lifting connecting plate, which is far away from the summary table, is provided with a sliding through groove communicated with the sliding grooves, an adjusting plate is arranged between the sliding through groove and the sliding groove in a sliding manner, the left side of the adjusting plate is provided with an isosceles trapezoid protrusion, an isosceles trapezoid groove is arranged in the isosceles trapezoid protrusion, the connecting spring rod is arranged between one side of the isosceles trapezoid protrusion, which is far away from the summary table, and the inner wall of the sliding groove, the bottom of the sliding groove is provided with a locking through groove below the adjusting plate, a locking plate is arranged in the locking through groove in a sliding manner, the locking plate is sleeved with the reset spring, and the upper end and the lower end of the reset spring are respectively connected with the fixed protrusion and the bottom of the locking through groove above the locking plate, and a linkage spring rod is arranged between the contact bulge and the lower end face of the lifting connecting plate, and a linkage rod is arranged between the contact bulge and the locking plate.

Preferably, the connecting wire under the terminal surface also evenly be provided with a plurality of connecting blocks, the terminal surface is installed under the connecting wire to the last connection round platform of connecting block, the connecting wire passes through the connecting block joint inside connecting the round hole, has increased the stability of connecting wire in the use, avoid the connecting wire to hang and easily cause the laminating degree between connecting wire and total contact, the branch contact in the air, improve the circular telegram connectivity between connecting wire and total table, the branch table.

Preferably, the lower end of the contact protrusion is set to be a spherical surface, the upper end surface of the external contact point matched with the contact protrusion is provided with a spherical groove, the spherical surface and the spherical groove are matched with each other to increase the contact area between the electric wire and the external contact point, poor contact between the electric wire and the sub-meter is avoided, and the power-on connectivity between the electric wire and the sub-meter is increased.

Preferably, the inside total contact of spread groove and the branch contact of being connected branch inslot portion are equallyd divide and do not are arc structure and evenly install at the spread groove with be connected branch inslot portion, according to the mounted position of branch table, the total contact that the arc structure distributes and divide the contact can change and the connecting wire between the angle of connection, avoid connecting wire and total contact, divide between the contact angle great, easily cause connecting wire and total contact, divide the junction between the contact to break, improve the life of connecting wire.

Preferably, the connecting groove is internally provided with a guide groove communicated with the contact groove and the locking groove along the left-right extending direction, and the guide groove can guide the electric wire in the installation process of the electric wire and the external contact point, so that the electric wire can be quickly attached to the upper part of the external contact point.

Preferably, the lower end of the locking plate is provided with an insulating rubber pad, so that the wire can be insulated, the friction force between the wire and the locking plate can be increased, and the relative sliding between the wire and the locking plate is avoided.

The invention has the beneficial effects that: 1. the general meter and the branch meters are matched with each other, the general meter can monitor the power consumption of the main circuit, the branch meters can monitor the power consumption of the branch circuits, the power consumption of the branch circuits can be obtained while the total power consumption is obtained, and the applicability is stronger; in connecting device, rotate the lifting screw and pass through the even board of lift spring lever drive lift and move down, and then the even board of lift drives the contact arch and impresses the electric wire inside the outer contact point simultaneously to practice thrift the time of fixing the electric wire one by one, improve electric wire installation effectiveness.

2. In the connecting part designed by the invention, the locking plate can lock the electric wire, so that the electric wire is prevented from sliding left and right between the contact protrusion and the external contact point, poor contact between the electric wire and the sub-meter is avoided, the attaching degree between the electric wire and the external contact point is improved, and the sub-meter can be ensured to be capable of monitoring the power consumption of the sub-circuit all the time.

3. The fixing substrate designed by the invention is provided with the connecting circular hole, and the sub-meter is clamped in the connecting circular hole through the connecting block, so that the sub-meter can be rapidly assembled and disassembled on the fixing substrate, the direction of the connecting groove can be adjusted according to different trends of the electric wires, the direction of an external contact point can be adjusted, the electric wires in different trends can be electrically connected, and the applicability is stronger.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a left side view of the invention.

Fig. 4 is a schematic perspective view of the general table of the present invention.

FIG. 5 is a schematic diagram of a sub-table structure according to the present invention.

Fig. 6 is a partial enlarged view of fig. 5 a according to the present invention.

Fig. 7 is a bottom plan view of the sub-table of the present invention.

Fig. 8 is a schematic perspective view of the connecting block of the present invention.

Fig. 9 is a schematic view of an internal mounting structure between the connecting wire and the fixed substrate according to the present invention.

Fig. 10 is a partial enlarged view of fig. 9 at B.

Fig. 11 is a schematic view of an inner installation structure between the connection device and the connection groove of the present invention.

FIG. 12 is a schematic view of the internal installation structure between the elevating connecting plate and the connecting part according to the present invention.

In the figure: 1. fixing the substrate; 11. connecting the round holes; 2. summarizing; 21. connecting grooves; 22. a total contact; 3. dividing the table; 31. connecting the sub-grooves; 32. separating a contact; 33. a connecting groove; 34. connecting blocks; 35. a connecting circular table; 36. a connecting projection; 37. an annular projection; 38. a contact groove; 39. locking the groove; 30. a guide groove; 4. a connecting device; 41. connecting the frame; 42. lifting the connecting plate; 421. a sliding groove; 43. a lifting screw; 44. a lift spring rod; 45. an outer contact point; 46. a contact bump; 47. a connecting portion; 471. an adjusting plate; 472. a return spring; 473. connecting a spring rod; 474. a linkage spring rod; 475. a linkage rod; 476. a locking plate; 477. an insulating rubber pad; 5. and connecting the wires.

Detailed Description

Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1, 2 and 3, an electric energy meter includes a fixed substrate 1, a general meter 2, a sub-meter 3, a connecting device 4 and a connecting

wire

5, 1 up end middle part of fixed baseplate be provided with table 2 always, spread groove 21 has been seted up to four corners of table 2 side always, spread groove 21 is inside to be provided with a plurality of total contacts 22 of being connected with table 2 inside electricity always, four corners of fixed baseplate 1 up end are provided with branch table 3, divide table 3 to be close to table 2 side corners always and seted up and connect branch groove 31, connect branch groove 31 inside be provided with a plurality of branch contacts 32 of being connected with the 3 inside electricity of branch table, 1 up end of fixed baseplate just is located and is provided with the connecting wire 5 that is used for connecting total contacts 22 and branch contacts 32 between table 2 and the branch table 3 always, divide table 3 to keep away from the side of connecting wire 5 and seted up connecting groove 33, connecting groove 33 internally mounted has connecting device 4.

Referring to fig. 1, fig. 7 and fig. 8, fixed baseplate 1 on evenly seted up and connected round hole 11, connect the inside ring channel that is provided with of round hole 11, divide table 3 lower terminal surface evenly be provided with connect round hole 11 matched with connecting block 34, connecting block 34 constitute by connecting round platform 35 and connecting arch 36, wherein connecting round platform 35 install terminal surface under dividing table 3, connect the left and right symmetry of terminal surface under the round platform 35 and install and connect arch 36, connect arch 36 lower extreme and be provided with the direction inclined plane, be provided with on the protruding 36 periphery of connection with ring channel matched with annular arch 37.

Refer to fig. 9 and fig. 10, connecting wire 5 under the terminal surface also evenly be provided with a plurality of connecting blocks 34, the terminal surface under connecting wire 5 is installed to the last connection round platform 35 of connecting block 34, connecting wire 5 passes through connecting block 34 joint inside connecting round hole 11, the stability of connecting wire 5 in the use has been increased, avoid connecting wire 5 to hang and easily cause connecting wire 5 and total contact 22 in the air, divide the laminating degree between the contact 32, improve connecting wire 5 and total table 2, divide the circular telegram connectivity between the table 3.

Referring to fig. 6 and 11, the connecting device 4 includes a connecting frame 41, a lifting connecting plate 42, a lifting screw 43, a lifting spring rod 44, an outer contact point 45, a contact protrusion 46 and a connecting portion 47, wherein the connecting frame 41 is installed inside the connecting groove 33, the lifting connecting plate 42 is slidably disposed on the front and rear inner walls of the connecting groove 33 and below the connecting frame 41, the lifting spring rods 44 are symmetrically installed on the front and rear sides between the lifting connecting plate 42 and the connecting frame 41, the lifting screw 43 is screwed in the middle of the connecting frame 41, the lower end surface of the lifting screw 43 abuts against the lower end surface of the lifting connecting plate 42, a plurality of contact protrusions 46 are uniformly installed on one side of the lower end surface of the lifting connecting plate 42, which is close to the summary table 2, from front to back, a plurality of contact grooves 38 corresponding to the contact protrusions 46 one by one are uniformly opened on the bottom of the connecting groove 33 from front to back, the outer contact point 45 electrically connected with the inside of the sub-table 3 is installed inside the contact groove 38, a plurality of connecting parts 47 which are in one-to-one correspondence with the contact protrusions 46 are uniformly arranged on the lifting connecting plate 42 from front to back, and locking grooves 39 which are in one-to-one correspondence with the connecting parts 47 are formed in the outer side of the bottom of the connecting groove 33.

With reference to fig. 11, the lower end of the contact protrusion 46 is a spherical surface, the upper end surface of the external contact point 45 matching with the contact protrusion 46 is provided with a spherical groove, and the spherical surface and the spherical groove are matched with each other to increase the contact area between the wire and the external contact point 45, avoid poor contact between the wire and the sub-meter 3, and increase the electrical connectivity between the wire and the sub-meter 3.

When the working is concrete, the sub-meter 3 is clamped inside the connecting circular hole 11 through the connecting block 34 according to the room wiring direction, when the connecting block 34 enters the connecting circular hole 11, the annular protrusion 37 and the connecting circular hole 11 are abutted against each other to drive the two connecting protrusions 36 to move oppositely, and then the annular protrusion 37 moves downwards and is clamped inside the annular groove, the annular protrusion 37 and the connecting circular table 35 are matched with each other through the connecting protrusion 36 to drive the sub-meter 3 to be clamped on the fixed substrate 1, so that the sub-meter 3 is detachably mounted on the fixed substrate 1, the sub-meter 3 can connect electric wires in different directions, after the sub-meter 3 is clamped and mounted, two ends of the connecting wire 5 are respectively connected with the main contact 22 and the sub-contacts 32, after the connecting wire 5 and the sub-meter 3 are mounted, the fixed substrate 1 which drives the sub-meter 3 and the main meter 2 is mounted on the wall, after the fixed substrate 1 is mounted, the external electric wires are respectively placed above the external contact points 45, rotate lift screw 43 and drive lift even board 42 and move down, and then lift even board 42 drives contact protrusion 46 and presses the electric wire on outer contact point 45, thereby make external electric wire unified with divide table 3 electricity to be connected, reduce the loaded down with trivial details nature of installing the electric wire one by one, divide table 3 to monitor the power consumption of each branch circuit, general table 2 can monitor the total power consumption of each branch circuit, the suitability is stronger, wherein lift spring beam 44 plays to reset and the supporting role to lift even board 42.

Referring to fig. 12, the connecting portion 47 includes an adjusting plate 471, a return spring 472, a connecting spring rod 473, a linking spring rod 474, a linking rod 475 and a locking plate 476, wherein the lifting connecting plate 42 is provided with sliding grooves 421 corresponding to the contact grooves 38 from front to back, a side edge of the lifting connecting plate 42 away from the general table 2 is provided with a sliding through groove communicated with the sliding groove 421, an adjusting plate 471 is arranged between the sliding groove 421 and the locking groove 39 in a sliding manner, an isosceles trapezoid projection is arranged on the left side of the adjusting plate 471, an isosceles trapezoid groove is arranged in the isosceles trapezoid projection, the connecting spring rod 473 is arranged between one side of the isosceles trapezoid projection away from the general table 2 and the inner wall of the sliding groove 421, the bottom of the sliding groove 421 and below the adjusting plate 471 is provided with a locking through groove, the locking plate 476 is arranged in the locking through groove in a sliding manner, the locking plate 476 is sleeved with the return spring 472, and the upper and lower ends of the reset spring 472 are respectively connected with the bottom of the fixing protrusion and the locking through groove above the locking plate 476, the linkage spring rod 474 is installed between the lower end surface of the contact protrusion 46 and the lower end surface of the lifting connecting plate 42, the linkage rod 475 is installed between the contact protrusion 46 and the locking plate 476, and the connection between the electric wire and the branch meter 3 is completely exposed to the air, so that when the electric meter is used, if the line fault may occur at the joint between the electric wire and the branch meter 3 due to the action of external impurities and moisture, when a single electric wire fails, the adjusting plate 471 is pulled to move outwards, when the isosceles trapezoid groove on the adjusting plate 471 moves to the position right above the locking plate 476, the tightened reset spring 472 resets to drive the locking plate 476 to move upwards, and then the locking plate 476 simultaneously drives the contact protrusion 46 to move upwards through the linkage rod 475, and then the damaged electric wire is taken down manually, and then the intact electric wire is placed on the external contact point 45, after the wires are placed, the adjusting plate 471 is pushed to move inwards to drive the locking plate 476 to move downwards through the bevel edge of the isosceles trapezoid groove, the locking plate 476 can lock the wires, the locking plate 476 and the linkage spring rod 474 are matched with each other to drive the wires to be compressed on the outer contact point 45 in the moving-downwards process, therefore, the lifting is not required to be lifted to cause the remaining intact wires to fall off, the convenience of wire maintenance is improved, the connection spring rod 473 can limit the adjusting plate 471, the adjusting plate 471 is guaranteed not to slide left and right relatively in a static state, and the linkage spring rod 474 can support the contact protrusion 46.

Referring to fig. 12, an insulating rubber pad 477 is installed at the lower end of the locking plate 476, so as to insulate the wires and increase the friction between the wires and the locking plate 476, thereby preventing the wires from sliding relative to the locking plate 476.

Referring to fig. 4 and 5, the total contact 22 inside the connecting groove 21 and the sub-contact 32 inside the connecting sub-groove 31 are equally divided into arc-shaped structures, which are uniformly installed inside the connecting groove 21 and the connecting sub-groove 31, according to the installation position of the sub-table 3, the total contact 22 and the sub-contact 32 distributed by the arc-shaped structures can change the connection angle with the connecting wire 5, so that the connection angle between the connecting wire 5 and the total contact 22 and the sub-contact 32 is prevented from being large, the connection between the connecting wire 5 and the total contact 22 and the sub-contact 32 is easily broken, and the service life of the connecting wire 5 is prolonged.

Referring to fig. 11, the connecting groove 33 is provided with a guiding groove 30 penetrating the contact groove 38 and the locking groove 39 along the left-right extending direction, and the guiding groove 30 can guide the electric wire during the installation process of the electric wire and the external contact point 45, so that the electric wire can be quickly attached to the upper side of the external contact point 45.

The electric energy meter comprises the following steps in the installation and use process: step one, combined installation: divide table 3 to connect inside round hole 11 through connecting block 34 joint according to the room wiring direction earlier, annular protrusion 37 supports each other with being connected round hole 11 and drives two and connect protruding 36 and move in opposite directions with being connected round hole 11 when connecting block 34 gets into and connects inside round hole 11, and then annular protrusion 37 moves down the card and gets into inside the ring channel, annular protrusion 37 through connecting protruding 36 with connect round platform 35 mutually support and drive divide table 3 joint on fixed baseplate 1 again with connecting 5 both ends respectively with total contact 22, divide contact 32 to be connected.

Step two, installation treatment: after the connection line 5 and the sub-meter 3 are installed, the fixed substrate 1 driving the sub-meter 3 and the general meter 2 is installed on the wall.

Step three, connecting wires: after the fixed substrate 1 is installed, the external electric wires are respectively placed above the external contact points 45, the lifting screw 43 is rotated to drive the lifting connecting plate 42 to move downwards, and then the lifting connecting plate 42 drives the contact protrusions 46 to press the electric wires on the external contact points 45, so that the external electric wires are uniformly and electrically connected with the branch meter 3.

Step four, observing and reading: the branch table 3 can monitor the power consumption of each branch line, and the general table 2 can monitor the total power consumption of each branch line.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electric energy meter, includes fixed baseplate (1), summary table (2), divides table (3), connecting device (4) and connecting wire (5), its characterized in that: the middle part of the upper end face of the fixed substrate (1) is provided with a master meter (2), four corners of the side of the master meter (2) are provided with connecting grooves (21), a plurality of master contacts (22) electrically connected with the inside of the master meter (2) are arranged inside the connecting grooves (21), four corners of the upper end face of the fixed substrate (1) are provided with sub meters (3), the corners of the side of the sub meters (3) close to the master meter (2) are provided with connecting sub grooves (31), a plurality of sub contacts (32) electrically connected with the inside of the sub meters (3) are arranged inside the connecting sub grooves (31), connecting wires (5) used for connecting the master contacts (22) and the sub contacts (32) are arranged between the upper end face of the fixed substrate (1) and the master meter (2) and the sub meters (3), the side of the sub meters (3) far away from the connecting wires (5) is provided with connecting grooves (33), and connecting devices (4) are arranged inside the connecting grooves (33), wherein:

the connecting device (4) comprises a connecting rack (41), a lifting connecting plate (42), a lifting screw (43), a lifting spring rod (44), an outer contact point (45), a contact bulge (46) and a connecting part (47), wherein the connecting rack (41) is arranged inside the connecting groove (33), the lifting connecting plate (42) is arranged on the front inner wall and the rear inner wall of the connecting groove (33) in a sliding manner and is positioned below the connecting rack (41), the lifting spring rods (44) are symmetrically arranged between the lifting connecting plate (42) and the connecting rack (41) in a front-back manner, the lifting screw (43) is screwed in the middle of the connecting rack (41), the lower end face of the lifting screw (43) is abutted against the lower end face of the lifting connecting plate (42), the contact bulges (46) are uniformly arranged on one side of the lifting connecting plate (42) close to the master (2) from front to back, the bottom of the connecting groove (33) is uniformly provided with a plurality of contact grooves (38) which are in one-to-one correspondence with the contact bulges (46) from front to back, contact recess (38) internally mounted have with divide table (3) inside electricity connect outer contact (45), go up and down even install a plurality of and contact protruding (46) one-to-one connecting portion (47) from preceding back on even board (42), the locking recess (39) with connecting portion (47) one-to-one is seted up in the connecting groove (33) bottom outside.

2. An electric energy meter according to claim 1, characterized in that: fixed baseplate (1) on evenly seted up and connect round hole (11), connect round hole (11) inside and be provided with the ring channel, divide table (3) lower terminal surface evenly be provided with be connected round hole (11) matched with connecting block (34), connecting block (34) constitute by connecting round platform (35) and connecting arch (36), wherein connecting round platform (35) install terminal surface under dividing table (3), connect the terminal surface bilateral symmetry under round platform (35) and install and connect arch (36), connect arch (36) lower extreme and be provided with direction inclined plane, connect and be provided with on arch (36) the periphery with ring channel matched with annular protruding (37).

3. An electric energy meter according to claim 1, characterized in that: the connecting part (47) comprises an adjusting plate (471), a return spring (472), a connecting spring rod (473), a linkage spring rod (474), a linkage rod (475) and a locking plate (476), wherein sliding grooves (421) which are in one-to-one correspondence with the contact grooves (38) are formed in the lifting connecting plate (42) from front to back, a sliding through groove communicated with the sliding groove (421) is formed in the side edge of the lifting connecting plate (42) far away from the master meter (2), an adjusting plate (471) is arranged between the sliding groove (421) and the locking groove (39) in a sliding mode, an isosceles trapezoid protrusion is arranged on the left side of the adjusting plate (471), an isosceles trapezoid groove is formed in the isosceles trapezoid protrusion, a connecting spring rod (473) is arranged between one side of the isosceles trapezoid protrusion far away from the master meter (2) and the inner wall of the sliding groove (421), a locking through groove is formed in the bottom of the sliding groove (421) and below the adjusting plate (471), locking logical inslot portion slides and is provided with locking board (476), and the cover is equipped with reset spring (472) on locking board (476), and both ends interconnect with the fixed arch of locking board (476) top, locking logical groove bottom respectively about reset spring (472), installs linkage spring lever (474) between contact arch (46) and the lower terminal surface of even board (42) of going up and down, installs gangbar (475) between contact arch (46) and locking board (476).

4. An electric energy meter according to claim 2, characterized in that: the connecting wire (5) under the terminal surface also evenly be provided with a plurality of connecting blocks (34), terminal surface under connecting wire (5) is installed in connecting round platform (35) on connecting block (34).

5. An electric energy meter according to claim 1, characterized in that: the lower end of the contact protrusion (46) is a spherical surface, and the upper end surface of the outer contact point (45) matched with the contact protrusion (46) is provided with a spherical groove.

6. An electric energy meter according to claim 1, characterized in that: the total contact (22) in the connecting groove (21) and the sub-contact (32) in the connecting sub-groove (31) are respectively and uniformly arranged in the connecting groove (21) and the connecting sub-groove (31) in an arc structure.

7. An electric energy meter according to claim 3, characterized in that: the interior of the connecting groove (33) is provided with a guide groove (30) which is communicated with the contact groove (38) and the locking groove (39) along the left-right extending direction.

8. An electric energy meter according to claim 3, characterized in that: and an insulating rubber gasket (477) is arranged at the lower end of the locking plate (476).