An extensible combined electric energy meter

Abstract

The application discloses an extendable combined electric energy meter and belongs to the technical field of electric energy meters. Mainly comprising an electric energy meter, the electric energy meter comprises an electric meter main body, the bottom of the electric meter main body is provided with a mounting groove, and a wiring portion is arranged in the mounting groove; a connecting assembly, the connecting assembly comprises two groups of connecting heads, a notch is arranged at the center of the connecting head, and channels are arranged on the two sides in the connecting head; at least two groups of blocking rods, one end of the two groups of blocking rods close to each other is provided with an inclined sliding block, the other end of the blocking rod is provided with a blocking block, and a first spring is sleeved outside the blocking rod; and a fixed block, a hollow vertical stick is installed on the fixed block, a plug-in block is rotatably installed at the bottom of the vertical stick, and a second inclined surface is arranged at the bottom of the plug-in block. The application discloses an extendable combined electric energy meter, through the arrangement of the connecting assembly, the staff only needs to perform simple pressing and rotating actions, so that the separation and connection of the wiring portion and the electric meter main body can be quickly realized, and the time and labor cost are saved.

Description

Technical Field

[0001] This application relates to the field of electricity meter technology, specifically to an expandable combined electricity meter. Background Technology

[0002] An electricity meter, also known as an energy meter, is an instrument used to measure and record electrical energy consumption. It accurately measures the electricity used in households, industries, or commercial settings, typically in kilowatt-hours (kWh). Its main functions include metering electricity consumption, providing electricity usage data, and monitoring electricity usage. Currently, smart meters are commonly used. Smart meters, based on electronic meters, add communication modules and data processing capabilities, supporting two-way communication, remote control, multi-rate metering, and data analysis. They are an important component of smart grid construction.

[0003] For example, the patent with publication number CN118033204B discloses an energy meter with a split electrical connection module. Through the combination of a split sealing groove, a split connecting block and an electrical connection seat, the energy meter can be powered off at the output end and inside the energy meter by removing the split connecting block during subsequent live maintenance. This makes it safer and more convenient to maintain the energy meter or replace the output wire without disconnecting the input power switch.

[0004] In the aforementioned patent, the meter uses a modular design to make it safer and more convenient to inspect or replace the output wires. However, in densely populated areas with high electricity demand (such as apartments or dormitories), multiple meters may be installed in a single meter box. This makes it difficult to replace a meter due to the compact space and dense arrangement of the meters. Workers need to operate carefully to avoid touching adjacent meters or wires, which could cause unnecessary damage or safety hazards. This makes the entire process time-consuming and labor-intensive, increasing maintenance costs. Therefore, it is necessary to provide a quick-installation and removable modular meter to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an expandable modular energy meter that allows for quick disassembly and replacement of the energy meter.

[0007] The technical solution adopted by this application to solve its technical problem is as follows: an expandable combined energy meter, including a meter box; a metering component, which is provided in multiple sets inside the meter box, the metering component including an energy meter and a circuit switch, the energy meter including a meter body, the bottom of the meter body being provided with a mounting groove, the mounting groove being provided with a wiring part; a connecting component, which includes two sets of connectors, the connectors being located on both sides inside the mounting groove, the center of the connector being provided with a hollow slot, and the two sides inside the connector being provided with two sets of through channels; at least two sets of stop bars, the two sets of stop bars being installed inside the channels, the two sets of stop bars being connected to each other. A slanted slider is provided at one end of the rod, and a first inclined surface is provided at the top of the slanted slider. The other end of the stop rod passes through the channel and is provided with a stop block. A first spring is sleeved on the outside of the stop rod. A fixed block is mounted on the fixed block, and a hollow vertical rod is mounted on the bottom of the vertical rod. An insert block is rotatably mounted on the bottom of the insert block, and a second inclined surface is provided on the bottom of the insert block. The second inclined surface is adapted to the first inclined surface. Both sides of the insert block are provided with cut surfaces. A control rod is provided at the bottom of the control rod, and a connecting block is provided on the bottom of the control rod. Through grooves are provided on both sides of the vertical rod. An insertion groove is provided on the top of the insert block. Both the through grooves and the insertion groove are adapted to the size of the connecting block. A wing bolt is fixedly installed on the top of the control rod.

[0008] Furthermore, a second spring is installed at the bottom of the connector, and a top plate is installed at the top of the second spring. The top plate is concentric with the slot of the connector and is adapted to contact the insert block.

[0009] Furthermore, a third spring is fixedly installed on the top of the upright rod, and the other side of the third spring is adapted to contact the wing bolt.

[0010] Furthermore, a friction component is provided at the connection between the insert block and the upright rod.

[0011] Furthermore, a connecting plate is provided at the top of the mounting groove, and the top of the wiring part contacts the connecting plate.

[0012] Furthermore, the metering assembly includes a fixing plate installed inside the meter box. The fixing plate is provided with a vertical slide rail with an opening at the top. A slider is provided on the side of the electricity meter near the fixing plate, and the slider is adapted to the slide rail.

[0013] Furthermore, a connection box is provided between the energy meter and the circuit switch, and the connection box is fixedly installed with the fixing plate. The interior of the connection box is hollow.

[0014] Furthermore, the connection box is equipped with a take-up assembly, which includes two sets of mounting plates installed inside the connection box. A shaft is connected between the two sets of mounting plates. A winding shaft is installed at the center of the shaft. A first gear is installed on one side of the shaft, and a second gear is meshed on the top of the first gear.

[0015] Furthermore, a locking block extends from one side of the bottom of the wiring portion, and a rack is mounted on the bottom of the locking block, the rack being adapted to mesh with the second gear.

[0016] Furthermore, the outer bolt of the wiring part is fixed with a cover.

[0017] The beneficial effects of this application are: the expandable combined energy meter provided by this application makes it easier to replace the main body of the meter by setting up connecting components. By setting up components such as control rods, connecting blocks, plug slots and wing bolts, the staff can quickly separate and connect the wiring part from the main body of the meter by simply pressing down and rotating, saving time and labor costs.

[0018] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is an overall schematic diagram of an expandable combined energy meter according to this application;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 for Figure 2 A schematic diagram of the internal structure of a China Electricity Meter;

[0023] Figure 4 for Figure 3 A schematic diagram showing the disassembly of the central wiring section;

[0024] Figure 5 This is a structural diagram of the connecting components;

[0025] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0026] Figure 7 for Figure 6 A schematic diagram of the internal structure of the connecting component;

[0027] Figure 8 This is a schematic diagram of the take-up assembly.

[0028] Figure 9 for Figure 8 Enlarged view of point C in the middle;

[0029] Figure 10 A schematic diagram of the improved track;

[0030] Figure 11 for Figure 10 Enlarged view of point D in the middle;

[0031] Figure 12 for Figure 11 Schematic diagram of the installation position of the central metal block;

[0032] The following are the labeling elements in the figure:

[0033] 1. Meter box;

[0034] 2. Power metering components; 21. Fixing plate; 22. Slide rail; 23. Circuit switch; 24. Connection box;

[0035] 3. Electricity meter; 31. Meter body; 32. Display screen; 33. Mounting slot; 34. Wiring section; 35. Connecting plate; 36. Cover;

[0036] 4. Connecting components; 41. Connector; 42. Channel; 43. Stop bar; 44. Angled slider; 45. Stop block; 46. Top plate;

[0037] 5. Fixing block; 51. Vertical rod; 52. Inserting block;

[0038] 6. Control lever; 61. Connecting block; 62. Through slot; 63. Wing bolt; 64. Insert slot; 65. Cut surface;

[0039] 7. Take-up assembly; 71. Mounting plate; 72. Shaft; 73. Winding shaft; 74. First gear; 75. Second gear;

[0040] 8. Block; 81. Rack; 82. Metal block.

[0041] 9. Track; 91. Notch; 92. Magnetic block. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0044] Example 1: This example specifically illustrates the basic structure and working principle of an expandable combined energy meter, specifically:

[0045] like Figures 1-2 As shown, this application provides an expandable modular electricity meter, including a meter box 1, which is fixedly installed in an apartment. The meter box 1 is equipped with multiple sets of electricity metering components 2, which are used to calculate the electricity consumption in the apartment. The electricity metering components 2 include a fixing plate 21, which is fixedly installed inside the meter box 1. A vertical slide rail 22 is provided on the fixing plate 21, and the top of the slide rail 22 has an opening. An electricity meter 3 is installed in the slide rail 22. A slider (not shown in the figure) is provided on the side of the electricity meter 3 near the fixing plate 21. The slider is adapted to the slide rail 22 so that when installing the electricity meter 3, the electricity meter 3 can be inserted from the top opening of the slide rail 22, and the electricity meter 3 can be moved to the bottom of the slide rail 22 by the cooperation of the slider and the slide rail 22.

[0046] Meanwhile, the power metering component 2 also includes a circuit switch 23, which is located at the bottom of the slide rail 22. Multiple sets of wires are installed on the circuit switch 23. These wires are closely connected to the power meter 3, ensuring the real-time and accurate transmission of power data and its clear display on the power meter 3, providing users with intuitive power consumption information.

[0047] Meanwhile, a connection box 24 is provided between the electricity meter 3 and the circuit switch 23. The connection box 24 is fixedly installed with the fixing plate 21. The interior of the connection box 24 is hollow, and an openable cover is provided in an easy-to-operate position on the connection box 24. The connection box 24 is used to cover the wires and prevent dust or debris from sticking to the wires.

[0048] like Figures 3-4As shown, the electricity meter 3 includes a meter body 31, which has a display screen 32. The display screen 32 is used to display real-time electricity consumption data, including but not limited to key information such as current electricity consumption, cumulative electricity consumption, voltage, and current, so that users can understand the electricity consumption at any time. At the same time, a mounting groove 33 is provided at the bottom of the meter body 31, and the opening of the mounting groove 33 faces the front of the meter body 31. A connecting plate 35 is provided at the top of the mounting groove 33. The connecting plate 35 is electrically connected to the electrical components inside the meter body 31. The connecting plate 35 can be a PCB board in the prior art. The connecting plate 35 has multiple sets of contacts for external connection.

[0049] Meanwhile, a wiring part 34 is provided on one side of the bottom of the meter body 31. The wiring part 34 is used to connect with the wires on the circuit switch 23. The size of the wiring part 34 is adapted to the size of the mounting groove 33. Then, by placing the wiring part 34 into the mounting groove 33, the top of the wiring part 34 will contact multiple sets of contacts on the connection plate 35, and the power consumption data will be input into the meter. This not only improves the installation efficiency, but also enhances the stability and reliability of the connection.

[0050] Meanwhile, for dust prevention, a cover 36 is bolted to the outside of the wiring section 34. The cover 36 is used to seal the wiring section 34 to prevent dust from entering the inside of the meter body 31.

[0051] like Figures 4-6 As shown, a connecting component 4 is provided in the wiring part 34 and the mounting groove 33. The connecting component 4 is used for the wiring part 34 to be quickly installed in the mounting groove 33. The connecting component 4 includes two sets of connectors 41 fixedly installed in the mounting groove 33. The connectors 41 have hollow slots inside (not shown in the figure). At the same time, fixing blocks 5 are fixedly installed on both sides of the wiring part 34 near the connectors 41. A vertical rod 51 is fixedly installed on the fixing block 5. The vertical rod 51 is suitable for passing through the slot.

[0052] Meanwhile, two sets of through channels 42 are provided on both sides inside the connector 41. A stop bar 43 is slidably installed inside the channel 42. The stop bar 43 has two ends. An inclined slider 44 is provided at the end of each of the two sets of stop bars 43 that are close to each other. The inclined slider 44 has a first inclined surface, and the first inclined surface is set towards the top of the connector 41.

[0053] Furthermore, the other end of the stop rod 43 passes through the channel 42 and is provided with a stop block 45. The size of the stop block 45 is larger than the size of the channel 42. At the same time, a first spring is sleeved on the outside of the stop rod 43. One end of the first spring is connected to the bottom of the inclined slider 44, and the other end is connected to the inner wall of the channel 42, so that the stop rod 43 can move within the channel 42 without disengaging from it.

[0054] Meanwhile, a plug 52 is rotatably installed at the bottom of the upright rod 51. The outer side of the plug 52 is provided with a second inclined surface, and when the plug 52 is in the initial position, the second inclined surface on the outer side of the plug 52 is adapted to contact the first inclined surface on the inclined slider 44.

[0055] Meanwhile, a second spring is fixedly installed at the bottom of the connector 41, and a top plate 46 is fixedly installed on the top of the second spring. The top plate 46 is co-centered with the slot of the connector 41 and is adapted to contact the insert block 52.

[0056] When the wiring part 34 needs to be installed inside the mounting slot 33, the operator only needs to align the two sets of plugs 52 on both sides of the wiring part 34 with the slot of the connector 41, and then put the two sets of uprights 51 into the slot. At this time, the second inclined surface on the outside of the plug 52 will contact the first inclined surface on the inclined slider 44. As the uprights 51 continue to go deeper, the plug 52 will continuously squeeze the inclined slider 44, so that the inclined slider 44 will enter the channel 42 and squeeze the first spring to deform. As the distance between the two sets of inclined sliders 44 gradually increases, when the plug 52 passes the inclined slider 44, the inclined slider 44 loses pressure and is driven to rebound by the first spring. At this time, the plug 52 will be stuck by the inclined slider 44, so that the stop rod 43 cannot be disengaged from the connector 41, thus achieving the initial connection and fixation.

[0057] Furthermore, since a second spring is fixedly installed at the bottom of the connector 41, when the insert 52 passes the inclined slider 44, it will come into contact with the top plate 46 and press the top plate 46, causing the second spring to deform. At this time, the reaction force of the second spring will drive the top plate 46 to press the insert 52, so that the insert 52 is locked in the connector 41, realizing the quick and stable installation of the wiring part 34 inside the mounting groove 33.

[0058] like Figure 7 As shown, in order to allow the wiring part 34 to be quickly separated from the meter body 31 during meter maintenance or replacement, a hollow cavity is provided inside the upright rod 51. A control rod 6 is inserted into the upright rod 51, and a connecting block 61 is provided at the bottom of the control rod 6. At the same time, through grooves 62 are provided on both sides of the upright rod 51. The size of the through grooves 62 is adapted to the size of the connecting block 61, so that the control rod 6 can move the connecting block 61 inside the upright rod 51 without obstruction. Meanwhile, a wing bolt 63 is fixedly installed on the top of the control rod 6. The wing bolt 63 is used by the operator to rotate the control rod 6.

[0059] Meanwhile, a insertion groove 64 is provided on the top of the insertion block 52 near the vertical rod 51. The size of the insertion groove 64 is adapted to the size of the connecting block 61. At the same time, a third spring is fixedly installed on the top of the vertical rod 51. The other side of the third spring is suitable for contacting the wing bolt 63. Under the action of the third spring, the connecting block 61 at the bottom of the control rod 6 will not contact the insertion block 52, effectively preventing accidental operation caused by accidental contact and ensuring the stability and safety of the system.

[0060] In order to allow the insert 52 to be quickly removed from the connector 41, two sets of cut surfaces 65 are provided on both sides of the insert 52. The two sets of cut surfaces 65 reduce the volume of the insert 52 and make it suitable for passing between the two sets of inclined sliders 44, thus simplifying the disassembly process.

[0061] It is understandable that friction components, such as friction plates or rubber pads, are provided at the connection between the insert block 52 and the upright rod 51. The friction plates increase the friction force when the insert block 52 rotates to prevent the insert block 52 from rotating on its own, thus ensuring safety by preventing the insert block 52 from rotating on its own unless actively intervened by the staff.

[0062] When the meter body 31 needs to be replaced, the staff first grasps the wing bolt 63 and pushes down the control lever 6, so that the connecting block 61 enters the insertion slot 64. Because the insertion block 52 is a rotatable connection, the staff can rotate the wing bolt 63 and drive the connecting block 61 to rotate, thereby driving the insertion block 52 to rotate 90 degrees. At this time, the staff can quickly remove the wiring part 34 from the mounting slot 33. Since the insertion block 52 has cut surfaces 65 on both sides, its volume is reduced, and it can pass through the two sets of inclined sliders 44 without any obstruction. The staff can then easily remove the wiring part 34 from the mounting slot 33, realizing the quick separation of the wiring part 34 from the meter body 31, which provides convenience for the maintenance or replacement of the meter.

[0063] In practical applications, such as when there is a change of residents in an apartment building, it is often necessary to replace the electricity meter accordingly. With the above connection design, the replacement process becomes more efficient. The staff only needs to separate the wiring part 34 from the meter body 31 to quickly remove the meter body 31 from the meter box 1 and replace it.

[0064] Example 2: When the wiring part 34 is removed from the mounting slot 33, the wire at the bottom of the wiring part 34 is still connected. This causes the wire to be stretched outward a certain distance when the wiring part 34 is moved. This frequent and disorderly stretching action may damage the wire, thereby affecting the normal use of the meter. Therefore, improvements are made to the wiring part 34, specifically:

[0065] like Figure 2 , Figure 8and Figure 9 As shown, a take-up assembly 7 is provided inside the connector box 24. The take-up assembly 7 includes two sets of mounting plates 71 fixedly installed inside the connector box 24. A shaft 72 is connected between the two sets of mounting plates 71 by a bearing. A winding shaft 73 is fixedly installed at the center of the shaft 72. The winding shaft 73 is used to collect the wire at the bottom of the connector 34. The wire can be wound or unwound by its rotation.

[0066] Meanwhile, a first gear 74 is fixedly installed on one side of the shaft 72. The first gear 74 is adapted to drive the shaft 72 to rotate. A second gear 75 is meshed on the top of the first gear 74. The second gear 75 is mounted on the mounting plate 71 near the first gear 74. When the second gear 75 rotates, it will drive the first gear 74 to rotate, which in turn drives the winding shaft 73 to rotate, thereby realizing the winding or unwinding of the wire.

[0067] Meanwhile, a locking block 8 extends from one side of the bottom of the connector 34. A rack 81 is fixedly installed at the bottom of the locking block 8. The rack 81 is adapted to mesh with the second gear 75. Thus, when the connector 34 is removed from the mounting slot 33, as the connector 34 continues to move, the rack 81 drives the second gear 75 to rotate, which in turn drives the winding shaft 73 to rotate through gear transmission, causing the wire to be unwound in an orderly manner. In this way, the wire will not be excessively stretched during the movement of the connector 34, thereby effectively protecting the wire.

[0068] After the meter body 31 is replaced, the wiring part 34 is reinstalled into the mounting slot 33. At this time, the rack 81 will drive the second gear 75 to rotate in the opposite direction. The reverse rotation of the second gear 75 will drive the winding shaft 73 to rotate in the opposite direction through gear transmission, so that the wire on the winding shaft 73 is re-wound and restored to the initial storage state, waiting for the next use.

[0069] Example 3: During the meter replacement process, although the winding and unwinding of the wire has been achieved through the winding assembly 7, in actual operation, the wire may still be subjected to some pulling as the connection part 34 moves. Although this pulling is not as severe as before, long-term accumulation may still cause damage to the wire and affect the stable operation of the meter. Therefore, improvements are made to the winding assembly 7, specifically:

[0070] like Figures 10-12 As shown, a track 9 is provided at the bottom of the card block 8. The width of the track 9 is adapted to the width of the rack 81. It can be understood that the length of the track 9 is greater than the length of the rack 81, which allows the rack 81 to slide freely within the track 9.

[0071] Meanwhile, a notch 91 is provided on the outer side of the card block 8, and the size of the notch 91 is small so that the rack 81 will not fall out from the notch 91;

[0072] Meanwhile, a magnetic block 92 is provided on the bottom of the cover 36 near the notch 91. The size of the magnetic block 92 is adapted to the size of the notch 91, and the magnetic block 92 can penetrate into the interior of the track 9 and fill the gap between the track 9 and the rack 81. At the same time, a metal block 82 is rotatably installed on the side of the rack 81 near the notch 91. The metal block 82 is in a flat state in the initial state, and its shape is the same as that of the notch 91. When the cover 36 is closed, the magnetic block 92 will extend into the notch 91 and connect with the metal block 82, thereby making the cover 36 suitable for driving the rack 81 to slide inside the track 9.

[0073] When the connector 34 needs to be removed, first pull out the cover 36. The pulling action of the cover 36 will drive the rack 81 to move a certain distance through the magnetic block 92, thereby causing the metal block 82 to extend out from the notch 91. At this time, the second gear 75 rotates, which in turn drives the winding shaft 73 to rotate through gear transmission, so that part of the wire is pre-unwound to form a buffer, which can effectively reduce the pulling force on the wire when the connector 34 moves. When the rack 81 comes into contact with the notch 91, it will be blocked, thereby causing the cover 36 to separate from the rack 81. At this time, the operator rotates the metal block 82 to make it vertical, thereby fixing the rack 81 in the track 9. Then the connector 34 can be removed and replaced normally. After the replacement is completed, the metal block 82 only needs to be reset to allow the rack 81 to move again.

[0074] Through the above design improvements, an effective buffer mechanism is provided for the power lines during the meter replacement process, further reducing the risk of the power lines being pulled, improving the service life of the power lines and the stability of the meter system, and providing stronger protection for the electricity safety of apartment buildings.

[0075] In summary, this device, by setting up the connecting component 4, makes it easier to replace the main body 31 of the meter. By setting up components such as the control rod 6, connecting block 61, plug slot 64, and wing bolt 63, the operator can quickly separate and connect the wiring part 34 from the main body 31 of the meter with a simple pressing and rotating action, saving time and labor costs.

[0076] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A scalable combination electric energy meter, characterized by: Include: Electricity meter box (1); Electricity metering components (2) are provided with multiple groups in the electricity meter box (1), the electricity metering components (2) include electric energy meter (3) and circuit switch (23), the electric energy meter (3) includes electricity meter main body (31), the bottom of the electricity meter main body (31) is provided with mounting groove (33), the mounting groove (33) is provided with wiring part (34); The connecting assembly (4) comprises: Two groups of connecting heads (41) are located on both sides of the mounting groove (33) inside, the center of the connecting head (41) is provided with a hollow notch, both sides of the connecting head (41) are provided with two groups of through channels (42); At least two groups of stop rods (43) are installed inside the channel (42), two groups of the stop rod (43) are provided with inclined sliding blocks (44) at one end close to each other, the top of the inclined sliding block (44) is provided with a first inclined surface, the other end of the stop rod (43) penetrates the channel (42) and is provided with a stop block (45), the outer side of the stop rod (43) is sleeved with a first spring; The fixed block (5) is provided on the wiring part (34) close to both sides of the connecting head (41), the hollow stand stick (51) is installed on the fixed block (5), the bottom of the stand stick (51) is rotatably installed with the plug-in block (52), the bottom of the plug-in block (52) is provided with a second inclined surface, the second inclined surface is matched with the first inclined surface, both sides of the plug-in block (52) are provided with a cutting surface (65), the cutting surface (65) makes the volume of the plug-in block (52) reduced, the plug-in block (52) can pass through between two groups of the inclined sliding block (44); The bottom of the control rod (6) is provided with a connecting block (61), the two sides of the stand stick (51) are provided with a through slot (62), the top of the plug-in block (52) is provided with a plug-in slot (64), the through slot (62) and the plug-in slot (64) are matched with the size of the connecting block (61), the top of the control rod (6) is fixedly installed with a butterfly bolt (63).

2. The scalable combination electric energy meter according to claim 1, characterized in that: The bottom of the connecting head (41) is provided with a second spring, the top of the second spring is provided with a top plate (46), the top plate (46) is provided with the same center as the notch of the connecting head (41), the top plate (46) is adapted to contact the plug-in block (52).

3. The scalable combination electric energy meter according to claim 2, characterized in that: The top of the stand stick (51) is fixedly installed with a third spring, the other side of the third spring is adapted to contact the butterfly bolt (63).

4. The scalable combination electric energy meter according to claim 3, characterized in that: The connection between the plug-in block (52) and the stand stick (51) is provided with a friction component.

5. The scalable combination electric energy meter according to claim 1, characterized in that: The top of the mounting groove (33) is provided with a connecting plate (35), the top of the wiring part (34) is in contact with the connecting plate (35).

6. The scalable combination electric energy meter according to claim 1, characterized in that: The meter assembly (2) comprises a fixed plate (21) installed inside the electric meter box (1), the fixed plate (21) is provided with a vertical slide (22), the top of the slide (22) is provided with an opening, the electric energy meter (3) is provided with a sliding block on the side close to the fixed plate (21), the sliding block is matched with the slide (22).

7. The scalable combination electric energy meter according to claim 6, characterized in that: A connecting box (24) is arranged between the electric energy meter (3) and the circuit switch (23), the connecting box (24) is fixedly installed with the fixed plate (21), the inside of the connecting box (24) is hollow.

8. The scalable combination electric energy meter according to claim 7, characterized in that: The inside of the connecting box (24) is provided with a winding assembly (7), the winding assembly (7) comprises two groups of installation plates (71) installed in the connecting box (24), the two groups of installation plates (71) are connected with a shaft (72), the center of the shaft (72) is installed with a winding shaft (73), one side of the shaft (72) is installed with a first gear (74), the top of the first gear (74) is installed with a second gear (75).

9. The scalable combination electric energy meter according to claim 8, characterized in that: The bottom of the wiring part (34) is provided on one side with a clamping block (8), the bottom of the clamping block (8) is installed with a rack (81), the rack (81) is matched with the second gear (75).

10. The scalable combination electric energy meter according to claim 1, characterized in that: The outside of the wiring part (34) is bolted with a cover (36).

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