A single-phase electric energy meter aging turnover box

Abstract

The present invention discloses a single-phase electric energy meter aging turnover box, comprising a turnover box body, the turnover box body having an opening, a turnover box bottom cover provided on the side of the turnover box body away from the opening, the turnover box bottom cover fixedly connected to the turnover box body, a plurality of limit platforms included in the turnover box body opening, a meter type positioning switching block fixedly connected between adjacent limit platforms; a plurality of current components provided on the side of the turnover box bottom cover close to the turnover box body, the current components passing through the turnover box body, an energized transfer mechanism provided on the turnover box body, the energized transfer mechanism connected to the current components. The present invention solves the problem that current electric energy meter aging racks are all single-mode, with one-to-one correspondence between meter types and aging racks, and are incompatible. In the present invention, a plurality of meter positions are provided, the electric energy meter is placed vertically on the meter position, and the electric energy meter can be positioned and quickly switched by the meter type positioning switching block. The present invention is suitable for electric energy meters of different specifications and has strong compatibility.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy meters, in particular to an aging turnover box for single-phase electric energy meters. Background Art

[0002] Currently, all energy meter aging racks are single-model, with meter types corresponding to aging racks one-to-one, which is not compatible. There are many different types of aging racks in use, which take up a lot of space, are prone to meter dropout, and require manual meter hanging, making automation impossible. Therefore, a highly compatible single-phase energy meter aging turnover box is proposed.

[0003] The Chinese patent document "A Turnover Box for Single-Phase Electric Energy Meters" with publication number CN210913742U discloses a turnover box for single-phase electric energy meters, comprising a turnover box body consisting of a bottom plate and four side plates, wherein a plurality of guide partitions are provided within the turnover box body, wherein the guide partitions are "L"-shaped vertical plates, and the guide partitions include partition side plates and a guide bottom plate, which divide the interior of the turnover box body into a plurality of special-shaped cavities, wherein the guide bottom plate limits the position of the one-way electric energy meter in the special-shaped cavities, and the guide partitions are integrally stamped and formed with the turnover box body. However, the Chinese patent with publication number CN210913742U has a simple structure and can only store electric energy meters of a specific model, making it not very practical. Summary of the Invention

[0004] The present invention solves the problem that the current electricity meter aging racks are all of a single model, the meter type and the aging rack are one-to-one corresponding, and are incompatible. A single-phase electricity meter aging turnover box is proposed, which is provided with multiple meter positions. The electricity meter is placed vertically on the meter position. The electricity meter can be positioned and quickly switched through the meter type positioning switching block. It is suitable for electricity meters of different specifications and has strong compatibility.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a single-phase electricity meter aging turnover box, comprising a turnover box body, the turnover box body having an opening, a turnover box bottom cover being provided on the side of the turnover box body away from the opening, the turnover box bottom cover being fixedly connected to the turnover box body, the turnover box body opening comprising a plurality of limit platforms, and meter type positioning switching blocks being fixedly connected between adjacent limit platforms; a plurality of current components being provided on the side of the turnover box bottom cover close to the turnover box body, the current components passing through the turnover box body, an energized transfer mechanism being provided on the turnover box body, and the energized transfer mechanism being connected to the current components.

[0006] In the present invention, four limit platforms can enclose a table position, and the table position can store and place the electric energy meter. The electric energy meter is placed vertically, and a table type positioning switching block is set between the limit platforms. It can be adjusted and cut according to the different widths of the electric energy meter. Its table position can adapt to electric energy meters of different specifications; the current component can power on the electric energy meter; the power transfer mechanism can realize the power-on series connection of the electric energy meter; the turnover box body and the turnover box bottom cover are both made by injection molding, and the injection molding material has good mechanical properties, heat resistance, chemical stability and insulation properties.

[0007] Preferably, the current assembly includes a plurality of current pins, the current pins are connected to a current plug, a spring is provided on the side of the current plug away from the current pin, the spring is provided between the current plug and the crimping rear cover plate, and the crimping rear cover plate is fixedly connected to the bottom cover of the turnover box.

[0008] In the present invention, the current pin passes through the bottom plate of the turnover box body and is electrically connected to the bottom of the vertically placed electric energy meter; a spring is arranged at the bottom of the current pin, which can lift the current pin and better contact and connect with the bottom of the electric energy meter; and the current pin, current plug and spring are all arranged on the crimped rear cover plate, which is convenient for installation and disassembly.

[0009] Preferably, the phenotypic positioning switching block includes a switching part for rotational switching and a fixed part connected to the switching part, a spring guide shaft part is provided below the switching part, and a contact part is provided on the side of the spring guide shaft part away from the switching part; the fixed part includes a first plane and a second plane, and the height of the first plane is lower than the height of the second plane.

[0010] In the present invention, the switching part of the phenotypic positioning switching block is a rectangular structure. When the long side of the switching part is perpendicular to the long side of the fixed part, the bottom of the switching part is just in the position of the second plane, and without rotation, the switching part is fixedly connected to the fixed part; when the switch needs to be adjusted, the switching part is manually pulled up and rotated 90 degrees. At this time, the bottom of the switching part is in the position of the first plane. At this time, the long side of the switching part is parallel to the long side of the fixed part, and the switching is completed; in the present invention, the contact part uses a flexible material.

[0011] Preferably, the limiting platform includes a limiting platform side wall and a boss, the limiting platform side wall and the boss have the same height, and the boss is arranged at the center of the limiting platform side wall.

[0012] In the present invention, a plurality of limiting platforms form a meter position, and the side walls of the limiting platforms ensure the stability of the placement of the electric energy meter. At the same time, the arrangement of the bosses also makes the placement of the electric energy meter more stable.

[0013] Preferably, the turnover box body includes a bottom plate and side walls, the side walls include long side walls and short side walls, the top of the short side wall is provided with a jig buckle, and the bottom of the short side wall is provided with a jig buckle plate, and the jig buckle is connected to the jig buckle plate of another turnover box.

[0014] In the present invention, the bottom plate and side wall of the turnover box body together form an opening, the jig buckle at the top of the short side wall can be clamped with the jig gusset plate, the jig buckle is fixedly connected to the top of the short side wall, the jig gusset plate is fixedly connected to the bottom of the short side wall, the jig buckle is clamped with the jig gusset plate on another turnover box, and at the same time, the jig gusset plate is also clamped with the jig buckle on another turnover box to ensure reliable power supply to the table support.

[0015] Preferably, a copper block is provided on the bottom cover of the turnover box, and the copper block is fixedly connected to the bottom cover of the turnover box. A notch is provided on the bottom cover of the turnover box corresponding to the copper block, and the copper block is connected to the power transfer mechanism of another turnover box through the notch.

[0016] In the present invention, the copper block plays the role of an intermediate connector, which is arranged on the bottom cover of the turnover box. The copper block is connected to the spring pin of the power transfer mechanism through the gap of the bottom cover of the turnover box to ensure the integrity of the electrical connection.

[0017] Preferably, the power transfer mechanism includes a fixed seat, the top of the fixed seat is fixedly connected to an upper blocking block, the bottom of the fixed seat is fixedly connected to a lower blocking block, a rectangular hole is provided in the fixed seat, a sliding block that can slide up and down is provided in the rectangular hole, a spring pin is embedded in the circular hole of the sliding block, a second spring is provided between the sliding block and the lower blocking block, and a loop copper sheet for connecting the power transfer mechanism is provided between the fixed seat and the upper blocking block.

[0018] In the present invention, the power transfer mechanism includes components such as a fixed seat, a sliding block, a probe, an upper blocking block, a lower blocking block, a spring, and a loop copper sheet; the sliding block is placed in the rectangular hole of the fixed seat 13, the probe is embedded in the circular holes of the upper and lower sliding blocks, the upper blocking block is fixed to the top of the fixed seat by screws, the lower blocking block is fixed to the bottom of the fixed seat by screws, the spring is placed between the sliding block and the lower blocking block, and the loop copper sheet is placed between the fixed seat and the upper blocking block; when used alone, a single box of electricity meters is powered on in series, and when stacked, multiple boxes of electricity meters are powered on in series.

[0019] Preferably, the jig buckle includes a receiving portion and a movable portion, the receiving portion is hinged to the movable portion through a pin shaft, and the movable portion includes a gradient portion for controlling the rotation of the movable portion and a buckle portion for clamping with the jig buckle plate.

[0020] In the present invention, the jig buckle is fixedly connected to the turnover box body through the receiving part, and the movable part rotates along the pin shaft. The buckle part of the movable part is an L-shaped structure, which is convenient for clamping with the jig buckle plate. The gradient part is set to a gradient structure, which is convenient for manual or machine-controlled rotation.

[0021] Preferably, a toroidal transformer is further provided between the turnover box body and the turnover box bottom cover.

[0022] In the present invention, the toroidal transformer is connected in parallel with the electric energy meter via a conducting wire.

[0023] The beneficial effects of the present invention are: a single-phase electricity meter aging turnover box of the present invention is provided with multiple meter positions, the electricity meters are placed vertically on the meter positions, and the electricity meters can be positioned and quickly switched through the meter type positioning switching block. It is suitable for electricity meters of different specifications and has strong compatibility; it is easy to realize automatic loading and unloading and three-dimensional warehousing, and has a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a single-phase electricity meter aging turnover box of the present application;

[0025] Figure 2 This is a top view of a single-phase electric energy meter aging turnover box of the present application;

[0026] Figure 3 This is a main view of a single-phase electric energy meter aging turnover box of the present application;

[0027] Figure 4 This is a side view of a single-phase electric energy meter aging turnover box of the present application;

[0028] Figure 5 This is a structural diagram of a single-phase electric energy meter aging turnover box without the turnover box body;

[0029] Figure 6 This is a front view of an aging turnover box for a single-phase electric energy meter in the present application, with the turnover box body removed;

[0030] Figure 7 This is a structural diagram of a power transfer mechanism for an aging turnover box of a single-phase electric energy meter in the present application;

[0031] Figure 8 This is a cross-sectional view of an energized transfer mechanism of an aging turnover box for a single-phase electric energy meter according to the present application;

[0032] Figure 9 This is a structural diagram and front view of a table-type positioning switching block of a power transfer mechanism of an aging turnover box of a single-phase electric energy meter in the present application;

[0033] Figure 10This is a structural diagram and three-view drawing of a fixture buckle for a single-phase electricity meter aging turnover box in this application;

[0034] Among them, 1, turnover box body 1-1, long side wall 1-2, short side wall 1-3, bottom plate 2, turnover box bottom cover 3, power transfer mechanism 4, table type positioning switching block 4-1, switching part 4-2, fixing part 4-2-1, first plane 4-2-2, second plane, 4-3 spring guide shaft part 4-4, contact part 5, fixture buckle 5-1, receiving part 5-2, movable part 5-2-1, gradient part 5-2-2, buckle part 5-3, pin 6, fixture buckle plate 7, current pin 8, Flow pin 9, spring 10, crimping rear cover 11, copper block 12, toroidal transformer 13, fixing seat 14, sliding block 15, probe 16, upper blocking block 17, lower blocking block 18, second spring 19, loop copper sheet 20, limit platform 20-1, limit platform side wall 20-2, boss a, structural diagram of phenotype positioning switching block b, front view of phenotype positioning switching block c, front view of jig buckle d, side view of jig buckle e, top view of jig buckle f, structural diagram of jig buckle. DETAILED DESCRIPTION

[0035] Example:

[0036] This embodiment proposes a single-phase electric energy meter aging turnover box, referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The turnover box body 1 has an opening. A turnover box bottom cover 2 is provided on the side of the turnover box body 1 away from the opening. The turnover box bottom cover 2 is fixedly connected to the turnover box body 1. The opening of the turnover box body 1 includes several limit platforms 20. A table type positioning switching block 4 is fixedly connected between adjacent limit platforms 20. Several current components are provided on the side of the turnover box bottom cover 2 close to the turnover box body 1. The current components pass through the turnover box body 1. The turnover box body 1 is provided with an electric transfer mechanism 3, which is connected to the current components. In this embodiment, 18 table positions are provided, and 18 current components are also provided. The number of limit platforms 20 is also related to the table positions.

[0037] refer to Figure 5 and Figure 6The current assembly includes multiple current pins 7, each connected to a current plug 8. A spring 9 is provided on the side of the current plug 8 away from the current pin 7. The spring 9 is disposed between the current plug 8 and a crimping rear cover 10, which is fixedly connected to the turnover box bottom cover 2. In this embodiment, a single current assembly is provided with three current pins 7 and three current plugs 8. The corresponding current pins 7 and current plugs 8 are fixed to the crimping rear cover 10. A spring 9 is provided between the current plug 8 and the crimping rear cover 10 to prop up the current pin 7.

[0038] refer to Figure 1 、 Figure 2 and Figure 9 The phenotypic positioning switching block 4 includes a switching portion 4-1 for rotational switching and a fixed portion 4-2 connected to the switching portion 4-1. A spring guide shaft portion 4-3 is provided below the switching portion 4-1, and a contact portion 4-4 is provided on the side of the spring guide shaft portion 4-3 away from the switching portion 4-1. The fixed portion 4-2 includes a first flat surface 4-2-1 and a second flat surface 4-2-2. The height of the first flat surface 4-2-1 is lower than that of the second flat surface 4-2-2. In this embodiment, 24 phenotypic positioning switching blocks 4 are provided.

[0039] refer to Figure 1 The limiting platform 20 includes a limiting platform side wall 20-1 and a boss 20-2. The limiting platform side wall 20-1 and the boss 20-2 are of equal height. The boss 20-2 is located at the center of the limiting platform side wall 20-1. In this embodiment, the limiting platform is arranged to ensure the stable placement of the electric energy meter.

[0040] refer to Figure 1 and Figure 2 The turnover box body 1 includes a bottom plate 1-3 and side walls. The side walls include a long side wall 1-1 and a short side wall 1-2. A fixture buckle 5 is provided on the top of the short side wall 1-2, and a fixture plate 6 is provided on the bottom of the short side wall 1-2. The fixture buckle 5 engages with the fixture plate 6 of another turnover box. In this embodiment, a limit platform 20 is provided on the bottom plate 1-3. The bottom plate 1-3 is also provided with several holes, which are provided for the current pins 7 to pass through.

[0041] refer to Figure 5 A copper block 11 is provided on the bottom cover 2 of the turnover box. The copper block 11 is fixedly connected to the bottom cover 2 of the turnover box. A notch is provided on the bottom cover 2 of the corresponding turnover box below the copper block 11. The copper block 11 is connected to the power transfer mechanism 3 of another turnover box through the notch. In this embodiment, the copper blocks 11 are provided on both sides of the bottom cover 2 of the turnover box and are symmetrically arranged.

[0042] refer to Figure 7 and Figure 8The power transfer mechanism 3 includes a fixed seat 13, the top of the fixed seat 13 is fixedly connected to an upper blocking block 16, the bottom of the fixed seat 13 is fixedly connected to a lower blocking block 17, a rectangular hole is provided in the fixed seat 13, a sliding block 14 that can slide up and down is provided in the rectangular hole, a spring pin 15 is embedded in the circular hole of the sliding block 14, a second spring 18 is provided between the sliding block 14 and the lower blocking block 17, and a loop copper sheet 19 for connecting the power transfer mechanism 3 is provided between the fixed seat 13 and the upper blocking block 16.

[0043] refer to Figure 10 The fixture buckle 5 includes a receiving portion 5-1 and a movable portion 5-2. The receiving portion 5-1 is hinged to the movable portion 5-2 via a pin 5-3. The movable portion 5-2 includes a gradient portion 5-2-1 for controlling the rotation of the movable portion 5-2 and a buckle portion 5-2-2 for engaging with the fixture buckle plate 6. In this embodiment, the movable portion 5-2 is irregular in shape. A rounded corner is provided on the side close to the gradient portion 5-2-1. The cross-sectional radius of the movable portion 5-2-2 decreases continuously from the end of the rounded corner along the gradient portion 5-2-1 until it reaches the buckle portion 5-2-2. An L-shaped structure is provided on the side of the buckle portion 5-2-2 away from the gradient portion 5-2-1. See FIG. Figure 10 The front view c of the jig buckle, the side view d of the jig buckle, the top view e of the jig buckle and the structural diagram f of the jig buckle.

[0044] refer to Figure 1 、 Figure 5 and Figure 6 A toroidal transformer 12 is also provided between the turnover box body 1 and the turnover box bottom cover 2 .

[0045] As a specific embodiment, the present invention consists of a turnover box body 1, a turnover box bottom cover 2, a power transfer mechanism 3, a phenotypic positioning switching block 4, a jig buckle 5, a jig buckle plate 6, a current pin 7, a current plug 8, a spring 9, a crimped rear cover 10, a copper block 11 and a toroidal transformer 12; the turnover box bottom cover 2 is fixed to the turnover box body 1 by screws, the power transfer mechanism 3 is fixed to the turnover box body 1 by screws, the jig buckle 5 is fixed to the turnover box body 1 by screws, the jig buckle plate 6 is fixed to both sides of the turnover box bottom cover 2 by screws, and the jig buckle 5 is buckled together with the jig buckle plate 6 by the action of an internal spring; the current pin 7 and the current plug 8 are fixed together, all current plugs 8 are connected in series or in parallel through wires, the spring 9 is placed between the current plug 8 and the crimped rear cover 10, and the toroidal transformer 12 is fixed to the turnover box body 1 by screws.

[0046] In this embodiment, four limit platforms can form a table position, and the table position can store and place the electricity meter. The electricity meter is placed vertically, and a table type positioning switching block is set between the limit platforms. It can be adjusted and cut according to the different widths of the electricity meter. Its table position can adapt to electricity meters of different specifications; the current component can power on the electricity meter; the power transfer mechanism can realize the power-on series connection of the electricity meter; the turnover box body and the turnover box bottom cover are both made by injection molding, and the injection molding material has good mechanical properties, heat resistance, chemical stability and insulation properties.

[0047] In this embodiment, the current pin passes through the bottom plate of the turnover box body and is electrically connected to the bottom of the vertically placed electricity meter; a spring is arranged at the bottom of the current pin, which can lift the current pin and better contact and connect with the bottom of the electricity meter; and the current pin, current plug and spring are all arranged on the crimped rear cover plate, which is convenient for installation and disassembly.

[0048] In this embodiment, a plurality of limiting platforms form a meter position, and the side walls of the limiting platforms ensure the stability of the placement of the electric energy meter. At the same time, the setting of the bosses also makes the placement of the electric energy meter more stable.

[0049] In this embodiment, the bottom plate and side wall of the turnover box body together form an opening, and the jig buckle at the top of the short side wall can be clamped with the jig buckle plate. The jig buckle is fixedly connected to the top of the short side wall, and the jig buckle plate is fixedly connected to the bottom of the short side wall. The jig buckle is clamped with the jig buckle plate on another turnover box. At the same time, the jig buckle plate is also clamped with the jig buckle on another turnover box to ensure reliable power supply to the table support.

[0050] In this embodiment, the copper block acts as an intermediate connector, which is arranged on the bottom cover of the turnover box. The copper block is connected to the spring pin of the power transfer mechanism through the gap of the bottom cover of the turnover box to ensure the integrity of the electrical connection.

[0051] In this embodiment, the power transfer mechanism includes components such as a fixed seat, a sliding block, a probe, an upper blocking block, a lower blocking block, a spring, and a loop copper sheet; the sliding block is placed in the rectangular hole of the fixed seat 13, the probe is embedded in the circular holes of the upper and lower sliding blocks, the upper blocking block is fixed to the top of the fixed seat by screws, the lower blocking block is fixed to the bottom of the fixed seat by screws, the spring is placed between the sliding block and the lower blocking block, and the loop copper sheet is placed between the fixed seat and the upper blocking block; when used alone, a single box of electricity meters is powered on in series, and when stacked, multiple boxes of electricity meters are powered on in series.

[0052] In this embodiment, the fixture buckle is fixedly connected to the turnover box body through the supporting part, and the movable part rotates along the pin shaft. The buckle part of the movable part is an L-shaped structure, which is convenient for clamping with the fixture buckle plate. The gradient part is set to a gradient structure, which is convenient for manual or machine-controlled rotation.

[0053] In this embodiment, the toroidal transformer is connected in parallel with the electric energy meter via a conductor.

[0054] refer to Figure 1 、 Figure 2 and Figure 9 , see Figure 9 The structural diagram a of the phenotypic positioning switching block and the front view b of the phenotypic positioning switching block, the embodiment process of the phenotypic positioning switching block are described in detail here. The switching part of the phenotypic positioning switching block is a rectangular structure. When the long side of the switching part is perpendicular to the long side of the fixed part, the bottom of the switching part is just in the position of the second plane, and in the absence of rotation, the switching part is fixedly connected to the fixed part; when the switch needs to be adjusted, the switching part is manually pulled up and rotated 90 degrees. At this time, the bottom of the switching part is in the position of the first plane. At this time, the long side of the switching part is parallel to the long side of the fixed part, and the switching is completed; the contact part in the present invention uses a flexible material.

[0055] The above embodiments are further elaborations and illustrations of the present invention for ease of understanding, and are not intended to limit the present invention in any way. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A single-phase electric energy meter aging turnover box, characterized in that: The utility model comprises a turnover box body, the turnover box body has an opening, a turnover box bottom cover is provided on the side of the turnover box body away from the opening, the turnover box bottom cover is fixedly connected to the turnover box body, a plurality of limit platforms are included in the opening of the turnover box body, and a phenotype positioning switching block is fixedly connected between adjacent limit platforms; a plurality of current components are provided on the side of the turnover box bottom cover close to the turnover box body, the current components pass through the turnover box body, an electric transfer mechanism is provided on the turnover box body, and the electric transfer mechanism is connected to the current components; The phenotypic positioning switching block includes a switching part for rotational switching and a fixed part connected to the switching part, a spring guide shaft part is provided below the switching part, and a contact part is provided on the side of the spring guide shaft part away from the switching part; the fixed part includes a first plane and a second plane, and the height of the first plane is higher than the height of the second plane.

2. The single-phase electric energy meter aging turnover box according to claim 1, characterized in that: The current assembly comprises a plurality of current pins (7), the current pins (7) being connected to current plugs (8), a spring (9) being provided on a side of the current plug (8) away from the current pins (7), the spring (9) being provided between the current plugs (8) and a crimping rear cover plate (10), and the crimping rear cover plate (10) being fixedly connected to the turnover box bottom cover (2).

3. A single-phase electric energy meter aging turnover box according to claim 1 or 2, characterized in that: The limiting platform (20) comprises a limiting platform side wall (20-1) and a boss (20-2); the limiting platform side wall (20-1) and the boss (20-2) have the same height; and the boss (20-2) is arranged at the center of the limiting platform side wall (20-1).

4. A single-phase electric energy meter aging turnover box according to claim 1 or 2, characterized in that: The turnover box body (1) comprises a bottom plate (1-3) and side walls, wherein the side walls comprise a long side wall (1-1) and a short side wall (1-2), a jig buckle (5) is provided on the top of the short side wall (1-2), and a jig buckle plate (6) is provided on the bottom of the short side wall (1-2), wherein the jig buckle (5) is snap-connected with the jig buckle plate (6) of another turnover box.

5. The single-phase electric energy meter aging turnover box according to claim 4, characterized in that: A copper block (11) is provided on the bottom cover (2) of the turnover box. The copper block (11) is fixedly connected to the bottom cover (2) of the turnover box. A notch is provided on the bottom cover (2) of the turnover box corresponding to the bottom of the copper block (11). The copper block (11) is connected to the power transfer mechanism (3) of another turnover box through the notch.

6. The single-phase electric energy meter aging turnover box according to claim 4, characterized in that: The power transfer mechanism (3) comprises a fixed seat (13), the top of the fixed seat (13) is fixedly connected to an upper blocking block (16), the bottom of the fixed seat (13) is fixedly connected to a lower blocking block (17), a rectangular hole is provided in the fixed seat (13), a sliding block (14) that can slide up and down is provided in the rectangular hole, a spring pin (15) is embedded in the circular hole of the sliding block (14), a second spring (18) is provided between the sliding block (14) and the lower blocking block (17), and a loop copper sheet (19) for connecting the power transfer mechanism (3) is provided between the fixed seat (13) and the upper blocking block (16).

7. The single-phase electric energy meter aging turnover box according to claim 4, characterized in that: The jig buckle (5) comprises a receiving portion (5-1) and a movable portion (5-2); the receiving portion (5-1) is hinged to the movable portion (5-2) via a pin shaft (5-3); and the movable portion (5-2) comprises a gradient portion (5-2-1) for controlling the rotation of the movable portion (5-2) and a buckle portion (5-2-2) for being engaged with a jig buckle plate (6).

8. The single-phase electric energy meter aging turnover box according to claim 1, characterized in that: A toroidal transformer (12) is also provided between the turnover box body (1) and the turnover box bottom cover (2).

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