Multi-epitope modular electric energy metering box

Abstract

The application discloses a kind of multi-epitope module type electric energy metering box, it is related to electric energy metering box technical field, including multiple electric energy meter being arranged in metering box, further include: dust cover, terminal box, both are multiple, and all be set on corresponding electric energy meter, terminal box is used to connect electric energy meter and external power supply, and terminal box is located in the inside of each dust cover;Chute is opened in dust cover inside, and sliding frame is slidably installed in the chute.The advantages are that: short-circuit and homing of control connecting piece by physical method are guaranteed, the short-circuit and homing sequence of current, voltage, zero line connecting piece, while preventing the jamming condition of screw when homing connecting piece, avoid the possibility of electrical contact or operation error, dust at dust cover can be automatically controlled and cleaned, keep the inside of electric energy meter from dust and moisture, ensure the dry and clean of electric energy meter, so as to provide more reliable and efficient electric power metering service for user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric energy metering box, and particularly relates to a multi-meter-position modular electric energy metering box. BACKGROUND

[0002] The multi-meter-position modular electric energy metering box is a device for electric power metering, which is usually installed in buildings, industrial parks, commercial areas and the like, and is used for centrally managing and metering electric energy consumption of multiple users or multiple circuits. The electric energy metering box has multiple meter positions (i.e., multiple electric energy meter installation positions) and adopts a modular design, and can be flexibly configured and expanded according to actual needs.

[0003] When installing, dismounting or replacing the electric meter, the current channel needs to be disconnected or connected. In order to ensure the safety of the electrical equipment, the connecting pieces need to be sequentially pushed or returned to position to ensure that each circuit is sequentially connected or disconnected. If all the connecting pieces are simultaneously pushed or returned to position at one time, a large current fluctuation or electrical shock may occur, which may cause damage to the electrical equipment or the electric meter. Sequential operation can reduce this risk and gradually complete the connection work. However, the worker needs to loosen and tighten the screws on the terminal box in each electric meter, and the disconnection and connection sequence of each connecting piece cannot be mixed and staggered. If the operation is improper or careless (such as incorrect screw sequence or loose screws), it may cause poor contact, short circuit, overload and the like. Therefore, special care is needed. At the same time, the operation needs to open the dust cover on the electric meter to allow the air to fully contact the terminal box inside the electric meter. Especially in an environment with high humidity or a lot of dust, the screws inside the terminal box may be damaged due to environmental problems, or the worker may make a mistake due to visual error caused by weather conditions. Therefore, there is an urgent need for a multi-meter-position modular electric energy metering box to solve the above problems. SUMMARY

[0004] The present application aims to solve the problem of complicated installation of electric wires in the prior art, and provides a multi-meter-position modular electric energy metering box.

[0005] To achieve the above object, the present application adopts the following technical scheme:

[0006] The multi-meter-position modular electric energy metering box comprises multiple electric energy meters arranged in the metering box, and further comprises:

[0007] The dust cover and the terminal box are both multiple and are arranged on the corresponding electric energy meters. The terminal box is used to connect the electric energy meter and the external power supply, and the terminal box is located inside each dust cover.

[0008] The chute is arranged in the dustproof cover, a sliding frame is slidably arranged in the chute, a connecting plate is fixedly arranged on the sliding frame, two slide rods are fixedly arranged on the connecting plate, a primary short circuit structure is jointly arranged between the two slide rods, a secondary short circuit structure is arranged on the lower slide rod, and the primary short circuit structure and the secondary short circuit structure cooperate to realize short circuit processing, and each wire is correctly connected with the corresponding terminal.

[0009] The operation hole is arranged on the dustproof cover, the disconnecting and connecting electric conversion structure is arranged in the operation hole, and the disconnecting and connecting electric conversion structure is used for quickly operating short connection and homing, and a gear three is arranged on the disconnecting and connecting electric conversion structure.

[0010] The dust removal structure is arranged in the dustproof cover and is used for cleaning the dustproof cover.

[0011] In summary, the electric energy meter can be quickly installed, disassembled or replaced through simple movement, pulling and rotation of the torsion bar. The mechanism controls the short connection and homing of the connecting piece through a physical way, ensures the short connection and homing sequence of the current, voltage and zero line connecting pieces, prevents the connecting piece from being jammed with the screw during homing, avoids the possibility of poor electrical contact or operation error, does not need to open the dustproof cover during the operation, can automatically clean the dust on the dustproof cover, keeps the inside of the electric energy meter from being affected by dust and moisture, ensures the dryness and cleanliness of the electric energy meter, improves the working stability, accuracy and safety of the electric energy meter, and provides more reliable and efficient electric power metering service for users. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A structure schematic view of a multi-meter position modular electric energy metering box is provided in the application;

[0013] Figure 2 A structure schematic view of the inside of the metering box is provided in the application;

[0014] Figure 3 A structure schematic view of the electric energy meter is provided in the application;

[0015] Figure 4 A structure schematic view of the dustproof cover is provided in the application;

[0016] Figure 5 A side view of the dustproof cover is provided in the application;

[0017] Figure 6 A structure schematic view of the dustproof cover is provided in the application; Figure 5 A structure sectional view of the dustproof cover along the a-a direction is provided in the application;

[0018] Figure 7 A structure schematic view of the dustproof cover is provided in the application; Figure 6 An enlarged structure schematic view of the A part is provided in the application;

[0019] Figure 8 It is the structure schematic view of push plate and tooth rod in the application;

[0020] Figure 9 It is the structure schematic view of junction box in the application;

[0021] Figure 10 It is the structure schematic view of gear two and connecting plate in the application;

[0022] Figure 11 It is the structure schematic view of Figure 10 It is the structure enlarged schematic view of B part in the application;

[0023] Figure 12 It is the structure schematic view of torsion rod and gear three in the application;

[0024] Figure 13 It is the structure schematic view of convex block and tooth plate in the application;

[0025] Figure 14 It is the structure schematic view of line roller and single-hole air pipe in the application.

[0026] In the figure: 1, metering box; 2, observation window; 3, electric energy meter; 4, dust cover; 5, circuit breaker; 6, junction box; 7, push plate; 8, sliding rod; 9, block one; 10, block two; 11, block three; 12, push block one; 13, push block two; 14, operation hole; 15, outer hole; 16, sliding hole; 17, inner hole; 18, gear one; 19, tooth rod; 20, voltage connecting piece; 21, current connecting piece; 22, zero line connecting piece; 23, connecting plate; 24, convex block; 25, fixed block; 26, screw; 27, gear two; 28, sliding groove; 29, sliding frame; 30, torsion rod; 31, sliding ring; 32, sliding block; 33, recess; 34, gear three; 35, gear four; 36, line roller; 37, single-hole air pipe; 38, pull rope; 39, limiting plate; 40, cross rod; 41, tooth plate; 42, spring one. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0028] Refer to Figures 1-3 , Figures 9-11The utility model provides a kind of multi-epitope modular electric energy metering box, including metering box 1, the front side of metering box 1 is provided with box door, opening box door can be operated inside metering box 1, further include: multiple electric energy meters 3, multiple electric energy meters 3 are all arranged in metering box 1, multiple observation windows 2 are provided on the box door of metering box 1, observation window 2 uses transparent glass or plastic material, facilitate personnel statistics inside electric energy meter 3 The measurement situation, dust cover 4 is rotatably arranged on each electric energy meter 3, dust cover 4 uses transparent material, can facilitate personnel observation inside connection situation, wiring box 6 is provided on each electric energy meter 3, wiring box 6 is used to connect electric energy meter 3 with external power supply, wiring box 6 is usually part inside metering box 1, metering box 1 can include multiple electric energy meters 3, each electric energy meter 3 can have a wiring box 6 connected with power grid, responsible for transmitting the current and voltage signal of power grid to electric energy meter 3 for metering, and wiring box 6 is located inside each dust cover 4, circuit breaker 5 is installed in metering box 1, in metering box 1, circuit breaker 5 can not only realize overload protection, but also can be manually or remotely controlled when needed, and circuit is disconnected or connected.

[0029] Multiple screws 26 are threadedly installed on wiring box 6 (the screw 26 inside wiring box 6 is used to fix cable, to ensure the firmness of wiring part, wiring box 6 is usually used for three-phase four-wire system (i.e. three-phase alternating current+zero line), three-phase electric system has three phases (A phase, B phase, C phase), and electric energy meter 3 can measure electric quantity according to the flow condition of three-phase electric power, as shown in Figure 8 The front side of wiring box 6 is provided with multiple mounting grooves, every two adjacent mounting grooves from left to right form a group, and are sequentially divided into A phase, B phase and C phase, and phase lines are connected in three phases, and the last mounting groove is used for connecting zero line, and voltage connecting piece 20 is slidably installed between the corresponding two screws 26 of multiple groups (refer to Figure 9 Two screws 26 vertically connected in the left mounting groove in three phases), voltage connecting piece 20 is vertically and parallelly arranged between the multiple screws 26 on which voltage connecting piece 20 is installed (screw 26 above and below each voltage connecting piece 20), current connecting piece 21 is slidably installed between the corresponding two screws 26 of multiple groups (refer to Figure 9 Two screws 26 horizontally connected in one group in the right mounting groove in three phases), current connecting piece 21 is horizontally and equidistantly arranged between the multiple current connecting pieces 21, and fixed block 25 is fixedly installed on each current connecting piece 21, and fixed block 25 is diamond-shaped (refer to Figure 11 )。

[0030] Refer to Figures 4-13Further comprising a sliding groove 28 which is opened in the inside of the dust cover 4, a sliding frame 29 is slidingly installed in the sliding groove 28, the sliding frame 29 and the sliding groove 28 can make the structure on the dust cover 4 not affect the inside junction box 6 when the dust cover 4 is opened (the junction box 6 is not provided with complex structure), ensure the efficiency of the initial installation of the junction box 6, and reduce the production complexity. The sliding frame 29 is fixedly installed with a connecting plate 23, two slide rods 8 are fixedly installed on the connecting plate 23, a preliminary short circuit structure is commonly installed between the two slide rods 8, a secondary short circuit structure is installed on the lower slide rod 8, and the preliminary short circuit structure and the secondary short circuit structure cooperate to realize the short circuit processing before wire replacement, and realize the correct connection of each wire and the corresponding terminal before the replacement or installation of the line.

[0031] The preliminary short circuit structure comprises a plurality of springs two which are respectively fixedly installed on the two slide rods 8, the upper and lower two springs two are a group, and from left to right, a resisting block one 9, a pushing block one 12, a resisting block two 10, a pushing block two 13 and a resisting block three 11 are sequentially fixedly installed on each group of springs two, the resisting block one 9, the pushing block one 12, the resisting block two 10, the pushing block two 13 and the resisting block three 11 are used in cooperation with the fixed block 25, the resisting block one 9, the pushing block one 12, the resisting block two 10, the pushing block two 13 and the resisting block three 11 are of the same shape and are in trapezoidal arrangement, the resisting block one 9 and the pushing block one 12 are used in cooperation with the leftmost fixed block 25, the resisting block two 10 and the pushing block two 13 are used in cooperation with the middle fixed block 25, and the resisting block three 11 is used in cooperation with the rightmost fixed block 25 (for reference Figure 10 、 Figure 11 The secondary short circuit structure comprises a gear rod 19 which is fixedly installed on the corresponding slide rod 8, a plurality of meshing teeth are arranged at equal intervals on the gear rod 19, and the meshing teeth are used in meshing cooperation with the corresponding gear one 18, a plurality of pushing plates 7 are fixedly installed on the lower surface of the gear rod 19, the plurality of pushing plates 7 are arranged in trapezoidal shape, and the length of the upper base and the lower base of the pushing plate 7 from left to right becomes shorter and shorter (for reference Figure 10 The plurality of pushing plates 7 are used for pushing the corresponding voltage connecting piece 20 to move upward, the distance between the pushing plate 7 and the junction box 6 is greater than the distance between the voltage connecting piece 20 and the junction box 6, so that when the pushing plate 7 pushes the junction box 6, the voltage connecting piece 20 can be driven to move upward and close to the junction box 6 under the action of the pushing force, preventing the voltage connecting piece 20 from being stuck with the end of the screw 26.

[0032] The corresponding two screws 26 are slidingly installed with a zero line connecting piece 22, the zero line connecting piece 22 is fixedly installed with a protruding block 24, the screw 26 installed with the zero line connecting piece 22 is fixedly installed with a gear two 27, a limiting plate 39 is fixedly arranged in the dust cover 4, a cross rod 40 is slidingly arranged in the limiting plate 39, a spring one 42 is commonly fixedly installed between the cross rod 40 and the dust cover 4, a tooth plate 41 is fixedly arranged on the lower surface of the cross rod 40, and the gear two 27 is used in meshing cooperation with the tooth plate 41.

[0033] Also includes the operation hole 14, which is opened in the dust cover 4, the operation hole 14 is installed in the broken electrical conversion structure, for the electrical wire replacement or installation before and after the short circuit and the quick operation of the home, the broken electrical conversion structure is installed on the gear three 34; The dust cover 4 is provided with outer hole 15, sliding hole 16 and inner hole 17, the overall shape of the operation hole 14 is Figure 7 The outer hole 15 is in the shape of "U" plus "one" word shape and "U" shape connection right side area, the overall shape of the sliding hole 16 is "U" shape, the shape of the inner hole 17 is "one" word shape, and the inner hole 17 and the sliding hole 16 are located in the same plane, and the outer hole 15 operation hole 14, outer hole 15, sliding hole 16 and inner hole 17 are communicated with each other, the broken electrical conversion structure includes the torsion bar 30 slidingly installed in the operation hole 14, one end of the torsion bar 30 is provided with a rotation direction index, which can prompt the staff and help them analyze the direction of the torsion bar 30, and the gear three 34 is fixedly arranged on the torsion bar 30, the torsion bar 30 is used in the operation hole 14, the end of the torsion bar 30 is provided with a groove 33, the convex block 24 can be engaged in the groove 33, the connecting plate 23 is provided with a gear slot, and the gear three 34 is engaged in the gear slot, the torsion bar 30 is fixedly installed with a sliding ring 31, the sliding ring 31 slides along the inner hole 17, the outer hole 15 in sequence, the middle position of the torsion bar 30 is in the disconnected state, the disconnected position of the torsion bar 30 is fixedly installed with a sliding block 32, and the length and width of the sliding block 32 is less than the diameter of the torsion bar 30, the sliding block 32 slides along the operation hole 14, the inner hole 17 and the sliding hole 16 in sequence, and the sliding block 32 is square, which can prevent the torsion bar 30 from rotating during movement.

[0034] Referring to Figure 4 , Figure 10 and Figure 14Further comprising a dust removal structure arranged in the dustproof cover 4 for cleaning dust at the operation hole 14, the dust removal structure comprises two single-hole air pipes 37 fixedly installed in the dustproof cover 4, a piston is sealingly and slidably arranged in each of the two single-hole air pipes 37, a spring three is fixedly arranged at the bottom of each of the two single-hole air pipes 37 and connected with the corresponding piston, a pull rope 38 is fixedly installed on each of the two pistons, a plurality of air outlet pipes are fixedly and communicatively arranged on each of the two single-hole air pipes 37, the two single-hole air pipes 37 are installed according to the shape of the operation hole 14 at the periphery of the operation hole 14, and the outlet ends of the plurality of air outlet pipes are arranged at the operation hole 14, a wire roller 36 is rotatably installed in the dustproof cover 4, one end of each of the two pull ropes 38 is fixedly arranged on the wire roller 36, a gear four 35 is fixedly installed at one end of the wire roller 36, and the gear four 35 is engaged with the gear three 34 for use, rotation of the gear four 35 drives the wire roller 36 to rotate, rotation of the wire roller 36 drives the two pull ropes 38 to be wound, so that the two pistons move from the bottom of the corresponding single-hole air pipe 37 to the opening, at this time, the plurality of air outlet pipes inhale air into the single-hole air pipe 37; reverse rotation of the gear four 35 drives the pistons to move to the bottom of the single-hole air pipe 37, so that the air in the single-hole air pipe 37 is extruded out through the plurality of air outlet pipes, and the dust at the operation hole 14 is blown outwards.

[0035] Further, the fixed connection should be understood in a broad sense unless otherwise specified and limited, for example, it can be welding, or gluing, or integrally formed with the conventional means familiar to those skilled in the art.

[0036] The specific operation steps of the present application are as follows:

[0037] When short-circuiting (the current connecting piece 21 of the A phase, the B phase and the C phase are sequentially short-circuited, then the zero line connecting piece 22 is short-circuited, and finally the voltage connecting piece 20 of the A phase, the B phase and the C phase are sequentially short-circuited, which can ensure the safety and reliability of the circuit): open the metering box 1, select the electric energy meter 3 that needs to be connected with the electric wire, in the initial state, the gear three 34 is clamped in the gear groove, and the torsion bar 30 is located at the leftmost side of the inner hole 17, slide the torsion bar 30 to the right side, so that the sliding ring 31 slides to the right side in the inner hole 17, and the sliding block 32 slides to the right side in the operation hole 14, in this process, the torsion bar 30 drives the two slide rods 8 to slide to the right side on the terminal box 6 through the connecting plate 23, drives the two push blocks one 12 to first contact with the fixed block 25 in the A phase, moves the current connecting piece 21 connected with the fixed block 25 to the right side through the fixed block 25, then the push block two 13 contacts with the fixed block 25 in the B phase, moves the current connecting piece 21 connected with the fixed block 25 to the right side through the fixed block 25, finally drives the two abutting blocks three 11 to first contact with the fixed block 25 in the C phase, moves the current connecting piece 21 connected with the fixed block 25 to the right side through the fixed block 25, and realizes the conduction of the multiple sets of corresponding two screws 26.

[0038] The connecting plate 23 then continues to move to the right side, at this time the connecting plate 23 abuts against the cross rod 40, driving the cross rod 40 to press the spring one 42, the cross rod 40 drives the tooth plate 41 to move, so that the gear two 27 rotates, the gear two 27 rotates to make the zero line connecting piece 22 fall under the action of gravity, finally the slide rod 8 moves while driving the tooth rod 19 to move to the right side, the tooth rod 19 moves to drive the plurality of gear one 18 to rotate in turn from left to right (the gear one 18 in phase A, phase B, and phase C rotates in turn), the plurality of gear one 18 rotates to drive the corresponding screw 26 to unscrew, so that the plurality of voltage connecting pieces 20 fall downward under the action of gravity, realizing the sequential disconnection of the two originally conductive screws 26, completing the short circuit, at this time the torsion rod 30 reaches the intersection of the inner hole 17 and the sliding hole 16, after the short circuit current connecting piece 21, the zero line connecting piece 22 is short-circuited again, ensuring that the neutral line of the electric energy meter 3 and the zero line (existing line) of the power supply are connected smoothly, so as to prevent the neutral line from being disconnected when the electric energy meter 3 is disconnected, causing the electrical equipment to work abnormally or the voltage to be unstable, the short circuit sequence must be strictly operated according to the above steps, first connecting the current connecting piece 21, then connecting the zero line connecting piece 22, and finally connecting the voltage connecting piece 20, which can ensure the safety and reliability of the circuit.

[0039] After the meter replacement is completed: at this time, move the torsion rod 30 to the right side to make it reach the rightmost end of the inner hole 17, at this time, apply an outward force to drive the torsion rod 30 to move away from the dust cover 4, at this time the sliding ring 31 is located in the outer hole 15, the sliding block 32 is located in the inner hole 17, the gear three 34 is engaged with the gear four 35, if the dust at the operation hole 14 needs to be cleaned at this time, rotate the torsion rod 30 to drive the gear three 34 to rotate, the gear three 34 rotates to drive the gear four 35 to rotate, the gear four 35 rotates at this time to wind two pull ropes 38 through the wire roller 36, driving the piston to move to the opening of the single-hole air pipe 37, this process is relatively slow, multiple air outlet pipes intake air, and dust at the operation hole 14 is subjected to an adsorption force, but due to the limited speed of personnel rotation, the force can only realize the disturbance of dust, the outer end of the torsion rod 30 is provided with an arrow, at this time the arrow presents an upward state during horizontal movement, which can make personnel rotate the torsion rod 30 at the place for an integer number of turns, at this time, move the torsion rod 30 to the left side to make the gear three 34 and the gear four 35 separate, at this time the gear four 35 is no longer subjected to a fixed force, and under the action of the spring three, the piston quickly returns to the bottom of the single-hole air pipe 37, the gas in the single-hole air pipe 37 is squeezed to the multiple air outlet pipes, so that the air outlet pipes blow air, and the dust at the operation hole 14 is blown to the outside of the dust cover 4;

[0040] The connecting piece is returned to the original position (the zero line connecting piece 22 is connected first, then the current connecting pieces 21 of phases A, B and C are connected in sequence, and finally the voltage connecting pieces 20 of phases A, B and C are connected in sequence to ensure that the current flows to the load, and the wiring is completed): the torsion bar 30 is moved downward, the sliding ring 31 slides in the outer hole 15, the sliding block 32 slides in the sliding hole 16, and the shape of the sliding block 32 can ensure that the torsion bar 30 does not rotate until the torsion bar 30 is moved to the lower right corner of the "U"-shaped sliding hole 16, at which time the protrusion 24 is clamped into the groove 33, and upward movement of the torsion bar 30 will drive the zero line connecting piece 22 back to the initial state (between the two screws 26), and a certain length distance is provided between the protrusion 24 and the zero line connecting piece 22, which can effectively prevent the zero line connecting piece 22 from being clamped by the screw 26 when it is tilted away from the dust cover 4, ensuring the accuracy of the movement position of the zero line connecting piece 22; then the torsion bar 30 is moved along the previous movement track to the uppermost end of the outer hole 15, a pushing force is applied to drive the gear three 34 on the torsion bar 30 to insert into the tooth groove again, and the torsion bar 30 is moved to the left side of the inner hole 17;

[0041] This process will drive the two sliding rods 8 to move to the left side, and the position of the abutting block one 9 can meet the requirement that it first contacts the current connecting piece 21 of phase A, then the abutting block two 10 pushes the current connecting piece 21 of phase B to move, and finally the abutting block three 11 pushes the current connecting piece 21 of phase C to move, realizing the return of phases A, B and C in sequence, and under the setting of the spring two, when the abutting block one 9, the pushing block one 12, the abutting block two 10, the pushing block two 13 and the abutting block three 11 are pressed with a large force by the fixed block 25, the spring two will stretch and contract to prevent affecting the movement of the sliding rod 8, while ensuring the return sequence of the current connecting piece 21, and the sliding rod 8 will drive the leftmost push plate 7 to abut against the voltage connecting piece 20 of phase A while moving, driving the voltage connecting piece 20 of phase A to move upward to the initial position, then sequentially driving the voltage connecting pieces 20 of phases B and C to return to the original position, and the gear rod 19 will drive the plurality of gear one 18 to rotate in the opposite direction to tighten the screws 26 connected thereto, completing the position fixation of the voltage connecting piece 20, while the cross bar 40 is separated from the connecting plate 23, under the rebound force of the spring one 42, the cross bar 40 drives the tooth plate 41 to move to the left side, the tooth plate 41 drives the gear two 27 to rotate in the opposite direction, and the corresponding screw 26 is driven to rotate in the opposite direction to tighten and fix the zero line connecting piece 22, preventing it from sliding downward under the action of gravity, ensuring the stability of the connection, after completing the return of all wiring, gradually restore the power supply and check to ensure that the energy meter 3 works normally and accurately measures.

[0042] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A multi-meters modular electric energy metering box comprising a plurality of electric energy meters (3) arranged inside the metering box (1), characterized in that, Also include: Dust cover (4), terminal box (6), both are multiple, and are arranged on the corresponding electric energy meter (3), terminal box (6) is used for connecting electric energy meter (3) and external power supply, and terminal box (6) is located inside every dust cover (4); The sliding slot (28) is slidably installed with a sliding frame (29), the sliding frame (29) is fixedly installed with a connecting plate (23), the connecting plate (23) is fixedly installed with two slide rods (8), and the two slide rods (8) are jointly installed with a preliminary short circuit structure, the lower slide rod (8) is installed with a secondary short circuit structure, and the preliminary short circuit structure and the secondary short circuit structure cooperate to realize short circuit processing, so that each wire is correctly connected with the corresponding terminal. The operation hole (14) is provided on the dust cover (4), and the disconnecting electric conversion structure is installed in the operation hole (14) for quick operation of short circuit and homing, and the gear three (34) is installed on the disconnecting electric conversion structure. The dust removal structure is arranged in the dust cover (4) for cleaning. The preliminary short circuit structure includes multiple spring twos fixedly installed on the two slide rods (8), and the corresponding two springs are a group, and from left to right, the spring twos are sequentially fixedly installed with a block one (9), a push block one (12), a block two (10), a push block two (13) and a block three (11). The secondary short circuit structure includes a gear rod (19) fixedly installed on the corresponding slide rod (8), and the gear rod (19) is engaged with multiple gear wheels one (18) for use, and the lower surface of the gear rod (19) is fixedly installed with multiple push plates (7), and the multiple push plates (7) are used to push the corresponding voltage connecting piece (20) to move upward.

2. The multi-epitope modular electric energy metering box according to claim 1, characterized in that, Multiple screws (26) are threadedly installed on the terminal box (6), and multiple groups of two corresponding screws (26) are jointly slidably installed with a voltage connecting piece (20), and multiple screws (26) provided with the voltage connecting piece (20) are fixedly installed with a gear wheel one (18), and multiple groups of two corresponding screws (26) are jointly slidably installed with a current connecting piece (21), and each current connecting piece (21) is fixedly installed with a fixed block (25).

3. The multi-epitope modular electric energy metering box according to claim 2, characterized in that, The block one (9), the push block one (12), the block two (10), the push block two (13) and the block three (11) are used in cooperation with the fixed block (25).

4. The multi-epitope modular electric energy metering box according to claim 2, characterized in that, Corresponding two screws (26) are slidably installed with a zero line connecting piece (22), the zero line connecting piece (22) is fixedly installed with a protruding block (24), the screw (26) provided with the zero line connecting piece (22) is fixedly installed with a gear wheel two (27), the dust cover (4) is fixedly provided with a limiting plate (39), the limiting plate (39) is slidably provided with a horizontal rod (40), the horizontal rod (40) and the dust cover (4) are jointly fixedly installed with a spring one (42), and the lower surface of the horizontal rod (40) is fixedly provided with a toothed plate (41), and the gear wheel two (27) and the toothed plate (41) are engaged for use.

5. The multi-epitope modular electric energy metering box according to claim 1, characterized in that, The dustproof cover (4) is provided with an outer hole (15), a sliding hole (16) and an inner hole (17), and the operation hole (14), the outer hole (15), the sliding hole (16) and the inner hole (17) are communicated with each other.

6. The multi-epitope modular electric energy metering box according to claim 5, characterized in that, The disconnecting and connecting structure comprises a torsion bar (30) slidingly installed in the operation hole (14), and a gear three (34) fixedly arranged on the torsion bar (30), and a recess (33) is formed in the end of the torsion bar (30), and a tooth groove is formed in the connecting plate (23), and the gear three (34) is engaged in the tooth groove.

7. The multi-epitope modular electric energy metering box according to claim 6, characterized in that, The torsion bar (30) is fixedly provided with a sliding ring (31), which slides in the inner hole (17) and the outer hole (15) in sequence during the short-circuit processing, and the middle position of the torsion bar (30) is in the disconnected state, and the disconnected position of the torsion bar (30) is fixedly provided with a sliding block (32), and the length and width of the sliding block (32) are smaller than the diameter of the torsion bar (30), and the sliding block (32) slides in the operation hole (14), the inner hole (17) and the sliding hole (16) in sequence during the short-circuit processing.

8. The multi-epitope modular electric energy metering box according to claim 1, characterized in that, The dust removal structure comprises two single-hole air pipes (37) fixedly installed in the dustproof cover (4), and a piston is sealingly and slidingly arranged in each single-hole air pipe (37), and a spring three is fixedly arranged at the bottom of each piston and single-hole air pipe (37), and a pull rope (38) is fixedly installed on each piston, and a plurality of air outlet pipes are fixedly and communicatively arranged on each single-hole air pipe (37).

9. The multi-epitope modular electric energy metering box according to claim 8, characterized in that, The dustproof cover (4) is provided with a wire roller (36) rotatably installed therein, and one end of each of the two pull ropes (38) is fixedly arranged on the wire roller (36), and the wire roller (36) is fixedly provided with a gear four (35) at one end, and the gear four (35) is engaged with the gear three (34).

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