A switchable high-load electric energy meter

Abstract

The present invention discloses a switching high-load electric energy meter, which belongs to the technical field of electric energy meters, and includes an electric energy meter and an adapter. The bottom end of the electric energy meter is connected to the adapter through multiple assembly components, and the front outer side wall of the adapter is connected with multiple terminals for connecting three-phase electricity, mutual inductors and ground wires, and the inner end surface of the adapter is connected with multiple electric connection buttons for current and voltage circulation through a protective platform plate. The present invention can actively control the disconnection of the voltage circuit and the short circuit of the current circuit on the protection platform plate through the arrangement of the voltage adjustment push rod and the socket assembly, so that the normal operation of the external circuit is achieved, which is convenient for ensuring the normal power consumption of enterprises and factories, so that the entire circuit can be energized to replace and repair the electric energy meter. At the same time, the arrangement of the protection fuse and the adjustment of the permanent magnet column can only disconnect the circuit through which the electric energy meter flows, and allow the external circuit to supply power to enterprises and factories normally, thereby avoiding the electric energy meter from being damaged by current overload.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and in particular to a switching high-load electric energy meter. Background Art

[0002] High supply and high metering refers to high voltage power supply and metering at the high voltage devices PT and CT. High supply and low metering refers to high voltage power supply and metering at the low voltage side device CT. The electricity supplied to users by high supply and low metering and high supply and high metering is high voltage. This high voltage electricity quantity is generally recorded using high voltage metering meters.

[0003] When installing, high-voltage metering meters are generally connected with a joint junction box. Since high-voltage metering meters are generally used in enterprises and factories, in order to ensure that they will not affect the operation of enterprises and factories, high-voltage metering meters are calibrated, maintained or replaced with power on. Generally, the circuit is allowed to operate normally by short-circuiting the joint junction box. However, separate and complex wiring is required between the high-voltage metering meter and the joint junction box, which makes the calibration, maintenance and replacement of the high-voltage metering meter take a long time. Inefficient meter calibration, maintenance and replacement operations are likely to affect the electricity metering of enterprises and factories. In addition, high-voltage metering meters are used in high-voltage and high-current environments. Although there are transformer voltage and current reduction protection, enterprises and factories are prone to increase overall power consumption in actual production, which increases the current flowing through the high-voltage metering meters. High-voltage metering meters are easily damaged by strong current breakdown, causing circuit breakage, affecting the normal power supply of enterprises and factories. Therefore, a switching high-load energy meter is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that in the prior art, separate and complex wiring is required between the high-voltage metering meter and the combined junction box, which makes the calibration, maintenance and replacement of the high-voltage metering meter time-consuming and inefficient, which is easy to affect the electricity metering of enterprises and factories. In addition, the high-voltage metering meter is used in a high-voltage and high-current environment. Although there is a transformer to reduce voltage and current protection, the enterprise factory is prone to increase the overall power consumption in actual production, which increases the current flowing through the high-voltage metering meter. The high-voltage metering meter is easily damaged by strong current breakdown, causing circuit breaking, affecting the normal power supply of enterprises and factories. A switching high-load electric energy meter is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A switchable high-load electric energy meter comprises an electric energy meter and an adapter, wherein the bottom end of the electric energy meter is connected to the adapter through a plurality of assembly components, a plurality of terminal posts for connecting three-phase electricity, mutual inductors and ground wires are connected to the front outer side wall of the adapter, a plurality of electric connection buttons for current and voltage flow are connected to the inner end surface of the adapter through a protection platform plate, a plurality of socket components for controlling the opening and closing of longitudinal voltage and transverse current lines are arranged on the protection platform plate, two voltage regulating push rods are arranged on the adapter, an adjustment seat plate is connected to the output end of the voltage regulating push rod, two limiting slide grooves are arranged on the rear side wall of the adjustment seat plate, and a distance compensation component for longitudinal voltage adjustment is arranged in the limiting slide groove;

[0007] The two electrical connection buttons for current passage are respectively connected to two adjustment components for adjusting the movement of the socket component through two protective fuses. The adjustment component is connected to the rear side wall of the adjustment seat plate through a push column. The row of electrical connection buttons located at the rear is assembled and connected to a terminal block through a plurality of pin guide columns. The top of the terminal block is electrically connected to the bottom of the electric energy meter.

[0008] Preferably, the assembly component consists of a limit pin and an assembly socket, the bottom end of the electric energy meter is fixedly connected to the top end of the limit pin, a plurality of storage grooves are provided on the outer wall of the bottom end of the limit pin, an inner end surface of the storage groove is fixedly connected to an assembly limit bead through a spring rod, a plurality of limit grooves matching the assembly limit bead are provided on the inner wall of the assembly socket, and the outer wall of the assembly socket is fixedly connected to the inner wall of the adapter.

[0009] Preferably, the inner side wall of the adapter seat at the front is fixedly connected to an inner row seat to facilitate electrical connection with the external terminal, the side wall of the inner row seat is fixedly connected to the end of the voltage regulating push rod, and the inner row seat is electrically connected to a row of electrical buttons located in the front.

[0010] Preferably, the output end of the voltage regulating push rod is fixedly connected to the front side wall of the adjustment seat plate, and the inner end surface of the adapter seat is fixedly connected to the bottom end of the protection platform plate.

[0011] Preferably, the socket assembly consists of a U-shaped sleeve rod and two flared circular plates, the two ends of the U-shaped sleeve rod are respectively fixedly connected to the side walls of the two flared circular plates, and the bottom end of the adjustment seat plate is respectively fixedly connected to the outer side wall of the U-shaped sleeve rod that controls the longitudinal voltage circuit.

[0012] Preferably, the compensation component consists of a T-shaped slider and two telescopic spring columns, the side wall of the T-shaped slider is slidably connected to the inner wall of the limiting slide groove on the rear side wall of the adjustment seat plate, the end of the T-shaped slider is slidably connected to a positioning plate through two telescopic spring columns, the bottom end of the positioning plate is fixedly connected to the outer wall of the U-shaped sleeve rod that controls the transverse current circuit, and the top of the protection platform plate is fixedly connected to the side wall of the positioning plate through an electric push rod.

[0013] Preferably, the adjustment assembly consists of an adjustment electromagnetic column and an adjustment permanent magnetic column, the inner side wall of the adapter at the rear is fixedly connected with two adjustment sleeves, the inner end surface of the adjustment sleeve is fixedly connected to the end of the adjustment electromagnetic column, and the protection fuse is electrically connected to the adjustment electromagnetic column.

[0014] Preferably, the inner wall of the adjustment sleeve is slidably connected to the inner wall of the adjustment permanent magnetic column, a push-out spring is provided between the adjustment electromagnetic column and the adjustment permanent magnetic column, and the end of the adjustment permanent magnetic column is fixedly connected to the rear wall of the adjustment seat plate through a push column.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the setting of the voltage regulating push rod and the socket assembly, the disconnection of the voltage circuit and the short circuit of the current circuit on the protection platform board can be actively controlled, so that the normal operation of the external circuit is guaranteed, which is convenient for ensuring the normal power consumption of enterprises and factories, and the entire circuit can be energized to replace and repair the electric energy meter.

[0017] 2. By protecting the fuse and adjusting the setting of the permanent magnet column, only the circuit through which the energy meter flows can be disconnected, and the external lines can supply power to enterprises and factories normally, thereby protecting the energy meter and avoiding damage caused by current overload. The circuit of the energy meter can be disconnected and separated by autonomous regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a switchable high-load electric energy meter proposed by the present invention;

[0019] Figure 2 This is an assembly diagram of a switchable high-load electric energy meter proposed by the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0022] Figure 5 A structural schematic diagram of an assembly component in a switchable high-load electric energy meter proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of a transfer socket in a switchable high-load electric energy meter proposed by the present invention;

[0024] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0025] Figure 8This is a schematic diagram of the structure of a protection platform board in a switchable high-load electric energy meter proposed by the present invention;

[0026] Fig. 9 A schematic diagram of the structure of a compensation component in a switchable high-load electric energy meter proposed by the present invention;

[0027] Fig.10 This is a schematic diagram of the structure inside the adjustment sleeve in a switchable high-load electric energy meter proposed by the present invention.

[0028] In the figure: 1. Electric energy meter; 2. Adapter; 3. Terminal; 4. Limiting pin; 5. Assembly limiting bead; 6. Assembly socket; 7. Protection platform plate; 8. Internal row seat; 9. Electrical connection button; 10. Voltage regulating push rod; 11. Adjustment seat plate; 12. U-shaped sleeve rod; 13. Expanded round plate; 14. T-shaped slider; 15. Telescopic spring column; 16. Electric push rod; 17. Positioning plate; 18. Protection fuse; 19. Adjustment sleeve; 20. Adjustment electromagnetic column; 21. Push-out spring; 22. Adjustment of permanent magnetic column; 23. Push column; 24. Terminal block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example, see Figures 1 to 10 A switchable high-load electric energy meter comprises an electric energy meter 1 and an adapter 2. The bottom end of the electric energy meter 1 is connected to the adapter 2 through a plurality of assembly components. The front outer side wall of the adapter 2 is connected with a plurality of terminal posts 3 for connecting three-phase electricity, mutual inductors and ground wires. The inner end surface of the adapter 2 is connected with a plurality of electric connection buttons 9 for current and voltage circulation through a protective platform plate 7.

[0033] Furthermore, the assembly component is composed of a limit pin 4 and an assembly socket 6. The bottom end of the electric energy meter 1 is fixedly connected to the top of the limit pin 4. The outer wall of the bottom end of the limit pin 4 is provided with a plurality of storage grooves. The inner end surface of the storage groove is fixedly connected with an assembly limit bead 5 through a spring rod. The inner wall of the assembly socket 6 is provided with a plurality of limit grooves adapted to the assembly limit bead 5. The assembly limit bead 5 is inserted into the assembly socket 6 and is pressed into the storage groove. When the limit groove is reached, the limit is popped out. The outer wall of the assembly socket 6 is fixedly connected to the inner wall of the adapter 2. Fixed connection, the inner side wall of the adapter seat 2 located in the front is fixedly connected with an inner row seat 8, which is convenient for electrical connection with the external terminal 3, the side wall of the inner row seat 8 is fixedly connected to the end of the voltage adjustment push rod 10, and the inner row seat 8 is electrically connected to a row of electrical connection buttons 9 located in the front, so that the external terminal 3 is connected to the circuit of the electrical connection button 9 on the protection platform plate 7 through the inner row seat 8, the output end of the voltage adjustment push rod 10 is fixedly connected to the front side wall of the adjustment seat plate 11, and the inner end surface of the adapter seat 2 is fixedly connected to the bottom end of the protection platform plate 7;

[0034] The protection platform plate 7 is provided with a plurality of socket components for controlling the opening and closing of the longitudinal voltage and transverse current lines. The adapter 2 is provided with two voltage regulating push rods 10. The output end of the voltage regulating push rod 10 is connected to an adjustment seat plate 11. The rear side wall of the adjustment seat plate 11 is provided with two limit slide grooves. The limit slide grooves are provided with distance compensation components for longitudinal voltage adjustment.

[0035] Further, the sleeve assembly is composed of a U-shaped sleeve rod 12 and two flared circular plates 13, the two ends of the U-shaped sleeve rod 12 are respectively fixedly connected to the side walls of the two flared circular plates 13, the bottom end of the adjustment seat plate 11 is respectively fixedly connected to the outer side walls of the U-shaped sleeve rod 12 that controls the longitudinal voltage circuit, the U-shaped sleeve rod 12 here is longitudinally arranged, the compensation assembly is composed of a T-shaped slider 14 and two telescopic spring columns 15, the side wall of the T-shaped slider 14 is slidably connected to the inner side wall of the limiting slide groove on the rear side wall of the adjustment seat plate 11, the end of the T-shaped slider 14 is slidably connected to a positioning plate 17 through two telescopic spring columns 15, the bottom end of the positioning plate 17 is fixedly connected to the outer side wall of the U-shaped sleeve rod 12 that controls the transverse current circuit, the U-shaped sleeve rod 12 here is transversely arranged, and the top of the protection platform plate 7 is fixedly connected to the side wall of the positioning plate 17 through an electric push rod 16;

[0036] It should be noted that: the external three-phase electricity, mutual inductor and grounding lines are respectively connected to the multiple terminal posts 3 on the outside of the adapter 2, and then the circuit of the electric connection button 9 located in the front row of the protection platform plate 7 is transferred through the internal connection row seat 8. The electric connection button 9 located on the longitudinal U-shaped sleeve rod 12 is the voltage circuit, and the electric connection button 9 located on the transverse U-shaped sleeve rod 12 is the current circuit. If the electric energy meter 1 needs to be replaced or repaired, the two voltage adjustment push rods 10 are started through the external control button, and the voltage adjustment push rods 10 will shrink and pull the adjustment seat plate 11. The movement of the adjustment seat plate 11 will drive the multiple longitudinally arranged U-shaped sleeve rods 12 at the bottom to move together. The movement of the longitudinal U-shaped sleeve rod 12 will allow the two flared circular plates 13 to gradually press on the maximum diameter side wall of the electric connection button 9, so that the U-shaped sleeve rod 12 elastically expands and disengages from the electric connection button 9, so that the longitudinal U-shaped sleeve rod 12 is at The longitudinal voltage circuit is disconnected. In the process of adjusting the movement of the seat plate 11, the T-shaped slider 14 in the limit slide groove is also driven to move together, and the telescopic spring column 15 is used to compensate the moving distance, so that the transverse U-shaped sleeve rod 12 is always sleeved on the electrical connection button 9 on the current circuit, and then the electric push rod 16 is started to push the transverse U-shaped sleeve rod 12, so that the transverse U-shaped sleeve rod 12 is electrically connected to the electrical connection button 9 of the current circuit of the electric energy meter 1. At this time, the external current circuit of the electric energy meter 1 is in a short-circuit state, and the normal external current circuit can operate normally. At this time, the electric energy meter 1 and the adapter 2 can be separated from each other, and the assembly limit bead 5 on the limit pin 4 will be separated from the limit slot in the assembly socket 6, and pressed into the storage slot of the limit pin 4, so that the limit pin 4 and the assembly socket 6 are separated, and the separation of the electric energy meter 1 and the adapter 2 is completed;

[0037] A further benefit is that the disconnection of the voltage circuit and the short circuit of the current circuit on the protection platform board 7 can be actively controlled, so that the external circuit can operate normally, which is convenient for ensuring the normal power consumption of enterprises and factories, and the entire circuit can be energized to replace and repair the electric energy meter 1;

[0038] Two electrical connection buttons 9 for current flow are respectively connected to two adjustment components for adjusting the movement of the socket assembly through two protective fuses 18, and the adjustment components are connected to the rear side wall of the adjustment seat plate 11 through a push column 23. A row of electrical connection buttons 9 located at the rear is assembled and connected to a wiring seat 24 through a plurality of plug guide columns, and the top of the wiring seat 24 is electrically connected to the bottom of the electric energy meter 1;

[0039] Furthermore, the adjustment component is composed of an adjustment electromagnetic column 20 and an adjustment permanent magnetic column 22. The inner side wall of the adapter 2 at the rear is fixedly connected to two adjustment sleeves 19. The inner end surface of the adjustment sleeve 19 is fixedly connected to the end of the adjustment electromagnetic column 20. The protective fuse 18 is electrically connected to the adjustment electromagnetic column 20. The inner side wall of the adjustment sleeve 19 is slidably connected to the inner side wall of the adjustment permanent magnetic column 22. A push-out spring 21 is provided between the adjustment electromagnetic column 20 and the adjustment permanent magnetic column 22. The end of the adjustment permanent magnetic column 22 is fixedly connected to the rear side wall of the adjustment seat plate 11 through a push column 23.

[0040] It should be noted that: during the use of the electric energy meter 1, when the current flowing through the electric energy meter 1 is overloaded, the large current will melt the protective fuse 18 connected to the electrical button 9 on the horizontal current line, so that the adjustment electromagnetic column 20 in the adjustment sleeve 19 is disconnected from the power supply, and the adjustment electromagnetic column 20 will lose its magnetism. The adjustment sleeve 19 will isolate the magnetism of the adjustment electromagnetic column 20 and the adjustment permanent magnetic column 22 to avoid affecting the normal use of the electric energy meter 1. The adjustment electromagnetic column 20 loses its magnetism when it is powered off, which will end the magnetic attraction of the adjustment permanent magnetic column 22. The push-out spring 21 in a compressed state will instantly recover, thereby pushing the adjustment permanent magnetic column 22 outward. The push-out of the adjustment permanent magnetic column 22 will push the adjustment seat plate 11 through the push column 23. The movement of the adjustment seat plate 11 will first disconnect the longitudinal voltage line at the longitudinal U-shaped sleeve rod 12. The movement of the adjustment seat plate 11 will control the start of the electric push rod 16 to push the positioning plate 17 through the laser sensor, so that the horizontal U-shaped sleeve rod 12 will cause a short circuit in the current line after being pushed.

[0041] A further benefit is that only the circuit through which the energy meter 1 flows can be disconnected, and the external line can supply power to the enterprise and factory normally, thereby protecting the energy meter 1 and preventing the energy meter 1 from being damaged by current overload, and autonomously controlling the disconnection and separation of the circuit of the energy meter 1;

[0042] When the present invention is used, the external three-phase electricity, mutual inductor and grounding lines are respectively connected to the multiple terminal posts 3 outside the adapter 2, and then the circuits of the electric connection buttons 9 located in the front row of the protection platform plate 7 are transferred through the internal connection row seat 8. The electric connection buttons 9 located in the longitudinal U-shaped sleeve rod 12 are voltage circuits, and the electric connection buttons 9 located in the transverse U-shaped sleeve rod 12 are current circuits.

[0043] If the electric energy meter 1 needs to be replaced or repaired, the two voltage adjustment push rods 10 are activated by the external control button, and the voltage adjustment push rods 10 will shrink and pull the adjustment base plate 11. The movement of the adjustment base plate 11 will drive the multiple longitudinally arranged U-shaped sleeve rods 12 at the bottom to move together. The movement of the longitudinal U-shaped sleeve rods 12 will gradually press the two expanded circular plates 13 on the maximum diameter side wall of the electrical connection button 9, so that the U-shaped sleeve rods 12 elastically expand and detach from the electrical connection button 9, so that the longitudinal voltage line at the longitudinal U-shaped sleeve rods 12 is disconnected;

[0044] Based on the above, in the process of adjusting the movement of the seat plate 11, the T-shaped slider 14 in the limit slide groove will also be driven to move together, and the telescopic spring column 15 is used to compensate the moving distance, so that the transverse U-shaped sleeve rod 12 is always sleeved on the electric connection button 9 on the current circuit, and then the electric push rod 16 is started to push the transverse U-shaped sleeve rod 12, so that the transverse U-shaped sleeve rod 12 is electrically connected to the electric connection button 9 of the current circuit of the electric energy meter 1 in a transverse manner;

[0045] Based on the above, at this time, the external current circuit of the electric energy meter 1 is in a short-circuit state, while the normal external current circuit can operate normally. At this time, the electric energy meter 1 and the adapter 2 can be separated up and down, and the assembly limit bead 5 on the limit pin 4 will be separated from the limit groove in the assembly socket 6, and pressed into the storage groove of the limit pin 4, so as to realize the separation of the limit pin 4 and the assembly socket 6, and complete the separation of the electric energy meter 1 and the adapter 2. In this way, the disconnection of the voltage circuit and the short circuit of the current circuit on the protection platform board 7 can be actively controlled, so that the normal operation of the external circuit is ensured, which is convenient for ensuring the normal power consumption of enterprises and factories, so that the entire circuit can be energized to replace and repair the electric energy meter 1;

[0046] During the use of the electric energy meter 1, when the current flowing through the electric energy meter 1 is overloaded, the large current will melt the protective fuse 18 connected to the electrical button 9 on the transverse current line, so that the adjustment electromagnetic column 20 in the adjustment sleeve 19 is disconnected from the power supply, and the adjustment electromagnetic column 20 will lose its magnetism. The adjustment sleeve 19 will isolate the magnetism of the adjustment electromagnetic column 20 and the adjustment permanent magnetic column 22 to avoid affecting the normal use of the electric energy meter 1. The power-off and loss of magnetism of the adjustment electromagnetic column 20 will end the magnetic attraction of the adjustment permanent magnetic column 22, and the ejection spring 21 in the compressed state will instantly recover, thereby adjusting the permanent magnetic column 22 is pushed outward, and the outward push of the adjusting permanent magnet column 22 will push the adjusting seat plate 11 through the pushing column 23. The movement of the adjusting seat plate 11 will first disconnect the longitudinal voltage line at the longitudinal U-shaped sleeve rod 12. The movement of the adjusting seat plate 11 will control the start of the electric push rod 16 to push the positioning plate 17 through the laser sensor, so that the horizontal U-shaped sleeve rod 12 will cause a short circuit in the current line after being pushed. In this way, only the circuit through which the electric energy meter 1 flows can be disconnected, and the external line can supply power to the enterprise and factory normally, thereby protecting the electric energy meter 1 and avoiding damage to the electric energy meter 1 by current overload, and autonomously regulating and disconnecting and separating the circuit of the electric energy meter 1.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A switchable high-load electric energy meter, comprising an electric energy meter component (1) and an adapter (2), characterized in that: The bottom end of the electric energy meter (1) is connected to the adapter (2) through a plurality of assembly components; the front outer side wall of the adapter (2) is connected to a plurality of terminal posts (3) for connecting three-phase electricity, a mutual inductor and a ground wire; the inner end surface of the adapter (2) is connected to a plurality of electrical connection buttons (9) for current and voltage circulation through a protective platform plate (7); the protective platform plate (7) is provided with a plurality of socket components for controlling the opening and closing of longitudinal voltage and transverse current lines; the adapter (2) is provided with two voltage regulating push rods (10); the output end of the voltage regulating push rods (10) is connected to an adjustment seat plate (11); the rear side wall of the adjustment seat plate (11) is provided with two limit slide grooves; the limit slide grooves are provided with distance compensation components for longitudinal voltage adjustment; Two electrical connection buttons (9) for current passage are respectively connected to two adjustment components for adjusting the movement of the sleeve assembly via two protective fuses (18); the adjustment components are connected to the rear side wall of the adjustment seat plate (11) via a push column (23); a row of electrical connection buttons (9) located at the rear are assembled and connected to a wiring seat (24) via a plurality of pin guide columns; the top end of the wiring seat (24) is electrically connected to the bottom end of the electric energy meter (1); The assembly component is composed of a limit pin (4) and an assembly socket (6); the bottom end of the electric energy meter (1) is fixedly connected to the top end of the limit pin (4); the outer wall of the bottom end of the limit pin (4) is provided with a plurality of receiving grooves; the inner end surface of the receiving groove is fixedly connected to an assembly limit bead (5) via a spring rod; the inner wall of the assembly socket (6) is provided with a plurality of limit slots matching the assembly limit bead (5); the outer wall of the assembly socket (6) is fixedly connected to the inner wall of the adapter (2); the sleeve assembly is composed of a U-shaped sleeve rod (12) and two flared circular plates (13); the two ends of the U-shaped sleeve rod (12) are respectively fixedly connected to the side walls of the two flared circular plates (13); The bottom end of the adjustment seat plate (11) is respectively fixedly connected to the outer side wall of the U-shaped sleeve rod (12) for controlling the longitudinal voltage circuit, the compensation component is composed of a T-shaped slider (14) and two telescopic spring columns (15), the side wall of the T-shaped slider (14) is slidably connected to the inner side wall of the limit slide groove on the rear side wall of the adjustment seat plate (11), the end of the T-shaped slider (14) is slidably connected to a positioning plate (17) through the two telescopic spring columns (15), the bottom end of the positioning plate (17) is fixedly connected to the outer side wall of the U-shaped sleeve rod (12) for controlling the transverse current circuit, and the top end of the protection platform plate (7) is fixedly connected to the side wall of the positioning plate (17) through an electric push rod (16).

2. A switchable high-load electric energy meter according to claim 1, characterized in that: The inner side wall of the adapter seat (2) located in the front is fixedly connected to an inner row seat (8) to facilitate electrical connection with the external terminal (3); the side wall of the inner row seat (8) is fixedly connected to the end of the voltage regulating push rod (10); and the inner row seat (8) is electrically connected to a row of electrical connection buttons (9) located in the front.

3. A switchable high-load electric energy meter according to claim 1, characterized in that: The output end of the voltage regulating push rod (10) is fixedly connected to the front side wall of the adjustment seat plate (11), and the inner end surface of the adapter seat (2) is fixedly connected to the bottom end of the protection platform plate (7).

4. A switchable high-load electric energy meter according to claim 1, characterized in that: The adjustment assembly is composed of an adjustment electromagnetic column (20) and an adjustment permanent magnetic column (22); two adjustment sleeves (19) are fixedly connected to the inner side wall of the adapter (2) at the rear; the inner end surface of the adjustment sleeve (19) is fixedly connected to the end of the adjustment electromagnetic column (20); and the protection fuse (18) is electrically connected to the adjustment electromagnetic column (20).

5. A switchable high-load electric energy meter according to claim 4, characterized in that: The inner side wall of the adjustment sleeve (19) is slidably connected to the inner side wall of the adjustment permanent magnetic column (22); a push-out spring (21) is provided between the adjustment electromagnetic column (20) and the adjustment permanent magnetic column (22); and the end of the adjustment permanent magnetic column (22) is fixedly connected to the rear side wall of the adjustment seat plate (11) via a push column (23).

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