Electric energy meter easy to install

Abstract

The invention belongs to the technical field of electric energy meters, and particularly relates to an easy-to-install electric energy meter which comprises a rail assembly, one side wall of the rail assembly is slidably connected with an electric meter assembly, and the other side wall of the rail assembly is fixedly connected with a driving assembly used for limiting the falling position of the electric meter assembly. The output end of the driving assembly is further in transmission connection with the rail assembly, the output end of the driving assembly is used for driving the rail assembly, different states are conveniently switched to conduct meshing transmission connection or separation on the electric meter assembly, and when the driving assembly is in meshing connection with the electric meter assembly, the electric meter assembly can be controlled to vertically move downwards along the rail assembly. The lubricating assembly is used for lubricating the joint of the track assembly and the electric meter assembly in the moving process of the electric meter assembly, and when the driving assembly separates the electric meter assembly, the electric meter assembly can be horizontally taken out, so that the electric meter assembly is in a convenient-to-install state, the maintenance difficulty of lubricating oil is reduced, and the use process is more convenient.

Description

Technical Field

[0001] This invention belongs to the field of electricity meter technology, and specifically relates to an easy-to-install electricity meter. Background Technology

[0002] When installing existing electricity meters onto the mounting rails, if the rails are not used for a long time, the meter may have difficulty sliding along the rails, or even get stuck. Therefore, this does not meet the current requirements.

[0003] A search revealed that Chinese Patent Publication No. CN 120320163 A, authorized on July 15, 2025, discloses an easy-to-install electricity meter, including a mounting slide rail for mounting the meter. A sliding shell is slidably connected to the slide rail, and a pair of supporting cylindrical shells are fixedly connected to one side of each sliding shell. A lubricating oil reservoir is rotatably connected between the two supporting cylindrical shells. An oil outlet hole is provided on one side of the lubricating oil reservoir, and a first groove is provided on the lubricating oil reservoir, located on one side of the oil outlet hole. A sealing block is slidably connected within the first groove, and the sealing block is engaged within the first groove. A circular hole is provided on the sealing block, and an oil outlet pipe is fixedly connected to one side of the sealing block. Before installing the electricity meter on the slide rail, lubricating oil is applied to both sides of the mounting slide rail to lubricate it, allowing the meter to slide smoothly on the slide rail.

[0004] However, the device still has the following drawbacks: although it can make the electricity meter slide smoothly on the mounting rail before it is installed on the rail, the lubrication of the rail relies too much on the supply of lubricating oil. The precise position and amount of lubricating oil need to be manually controlled, which makes the maintenance of the electricity meter more difficult. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an easy-to-install electricity meter, comprising a track assembly. An electricity meter assembly is slidably connected to one side wall of the track assembly, and a drive assembly for limiting the falling position of the electricity meter assembly is fixedly connected to the other side wall of the track assembly. The output end of the drive assembly is also connected to the track assembly for transmission, allowing the track assembly and the electricity meter assembly to be in an engaged or disengaged state. The inner wall of the track assembly is also provided with a lubrication assembly for maintaining the electricity meter assembly. An end cap is movably engaged at the top of the lubrication assembly, and a side guard plate is provided on one side wall of the track assembly.

[0006] Furthermore, the track assembly includes a guide rail housing; one end of the guide rail housing is an open structure and the other end of the guide rail housing is a closed structure. A first central groove is provided at the center of the central axis of one side wall of the guide rail housing. Two sets of first guide grooves are also provided on one side wall of the guide rail housing, and the two sets of first guide grooves are symmetrically arranged with the central axis of the first central groove as the center.

[0007] Furthermore, hollow sliding cavities are provided at both ends of one side wall of the guide rail housing. Two sets of helical racks are slidably connected to the inner wall of the guide rail housing, and the ends of the two sets of helical racks extend to one side of the hollow sliding cavity. A storage box is fixedly connected to the inner wall of the guide rail housing near the bottom. A recycling tube is provided at the bottom of the storage box, and the recycling tube extends to the outside of the guide rail housing.

[0008] Furthermore, the meter assembly includes a meter frame; the meter frame is slidably attached to the outer wall of the guide rail housing and to the side near the opening; two sets of linkage shafts are fixedly connected to the inner wall of the meter frame; first gears are rotatably connected to the two sets of linkage shafts; and both sets of first gears are meshed with helical racks; one end of each set of linkage shafts is slidably attached to the inner wall of the first guide groove.

[0009] Furthermore, the drive assembly includes a mounting plate; both ends of the mounting plate are provided with electric slides, and the connection between the two sets of electric slides and the mounting plate is fixedly connected by a limiting plate, and a second central groove is provided at the center of the central axis of the outer wall of the mounting plate.

[0010] Furthermore, the outer wall of the mounting plate is provided with two sets of second guide grooves, and the two sets of second guide grooves are symmetrically arranged with the central axis of the second central groove as the center. Several sets of internal threaded holes are provided on both sides of the outer wall of the mounting plate near the edge. A limiting magnet is attached to the outer wall of the mounting plate, and a limiting screw passes through the limiting magnet. One end of the limiting screw is threaded into the internal threaded hole.

[0011] Furthermore, a movable magnet is provided on the top of the limiting magnet, and the connection between the movable magnet and the limiting magnet is magnetically abutting each other. The movable magnet has a positioning hole, and two sets of limiting sleeves are also embedded in the movable magnet. The inner walls of the two sets of limiting sleeves are fitted and connected to the ends of the two sets of linkage shafts. Long bolts are threaded to both sides of the movable magnet, and one end of the long bolt is abutting and connected to the electric slide on one side.

[0012] Furthermore, the lubrication assembly includes two sets of guide inner liner tubes; each set of guide inner liner tubes is provided with a maintenance mechanism at its top, and the maintenance mechanism is located at the top of the guide rail housing. The end caps seal and protect different positions of the maintenance mechanism from dust. The ends of the two sets of guide inner liner tubes and the side away from the maintenance mechanism are fixedly connected to the bottom of the inner wall of the guide rail housing. An extension groove is provided on the outer wall of one set of guide inner liner tubes.

[0013] Furthermore, the maintenance mechanism includes a first maintenance gear; a second maintenance gear is provided on the top of the first maintenance gear, and both ends of the second maintenance gear and the first maintenance gear are rotatably connected to the inner walls of two sets of guide inner liner tubes. A linkage pin is fixedly connected to one end of the first maintenance gear, and one end of the linkage pin passes through the first central groove and the second central groove in sequence, and extends into the positioning hole. Both ends of the first maintenance gear and the second maintenance gear are provided with tension springs, and both sets of tension springs are located inside the guide inner liner tubes. A limit gear is horizontally provided on one side of the second maintenance gear, and oil storage channels are fixedly connected to the side walls of both ends of the limit gear.

[0014] Furthermore, a base plate is provided at the bottom of the limiting gear, and the base plate is fixedly connected to the top of the guide rail housing. Both ends of the limiting gear are threaded with lead screws, and the bottom ends of the two sets of lead screws are rotatably connected to the top of the base plate. The top ends of the two sets of lead screws are drivenly connected to the output end of a micro motor, and the side of the micro motor away from the output end is fixedly connected to the top of the inner wall of the end cap. An oil injection branch pipe is provided at the top of the oil storage channel, and a micro oil pump is provided on the oil injection branch pipe. The length of the oil injection branch pipe is the same as the length of the second maintenance gear, and several sets of oil injection through holes are opened on the outer wall of the oil injection branch pipe near the connection between the second maintenance gear and the limiting gear.

[0015] The beneficial effects of this invention are: 1. The output end of the drive component is used to drive the track component, which facilitates switching between different states to engage or disengage the meter component. When the drive component engages with the meter component, it can control the meter component to move vertically downward along the track component. During the movement of the meter component, the lubrication component lubricates the connection between the track component and the meter component. When the drive component disengages from the meter component, the meter component can be removed horizontally, making the meter component easy to install. The maintenance of the lubricating oil is reduced, and the use process is more convenient.

[0016] 2. During the descent of the two sets of first gears, they can contact the second maintenance gears which are covered with lubricating oil. The second maintenance gears can contact the first gears, the first maintenance gears, and the helical racks on both sides, which is used to simultaneously lubricate and maintain the internal guide rail structure of the meter during the descent of the meter body.

[0017] 3. By using the limiting magnet and the movable magnet in a state of mutual magnetic aversion, the meter body can be buffered during its descent, preventing it from being in a buffered positioning state and reducing the chance of collisions between the meter body and the guide rail during installation.

[0018] 4. The storage box can promptly collect any excess lubricating oil that may drip from the upper gear of the first maintenance gear, preventing excess lubricating oil from dripping onto the bottom inner wall of the guide rail housing and causing corrosion of the guide rail structure. The storage box can also store excess lubricating oil, allowing it to evaporate naturally inside the guide rail housing and preventing the gear transmission components inside the guide rail housing from drying out.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an easy-to-install electricity meter according to an embodiment of the present invention is shown. Figure 1 ; Figure 2 A schematic diagram of the structure of an easy-to-install electricity meter according to an embodiment of the present invention is shown. Figure 2 ; Figure 3 An exploded view of the structure of an easily installable energy meter according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the track assembly according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the structure of the meter assembly according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the structure of the driving component according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the lubrication assembly according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the maintenance mechanism according to an embodiment of the present invention is shown.

[0022] In the diagram: 1. Track assembly; 11. Guide rail housing; 12. First central groove; 13. First guide groove; 14. Hollow slide cavity; 15. Helical rack; 16. Storage box; 17. Recycling tube; 2. Meter assembly; 21. Meter frame; 22. Linkage shaft; 23. First gear; 24. Meter body; 3. Drive assembly; 31. Mounting plate; 32. Electric slide; 33. Limiting plate; 34. Second central groove; 35. Second guide groove; 36. Internal threaded hole; 37. 38. Limiting magnet; 39. Movable magnet; 310. Positioning hole; 311. Limiting sleeve; 312. Long bolt; 4. Lubrication assembly; 41. Guide inner liner; 42. Extension groove; 43. Maintenance mechanism; 431. First maintenance gear; 432. Linkage pin; 433. Second maintenance gear; 434. Tension spring; 435. Limiting gear; 436. Oil storage channel; 437. Base plate; 438. Lead screw; 439. Oil injection branch pipe; 5. End cap; 6. Side guard plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides an easy-to-install electricity meter, including a track assembly 1; for example, such as... Figure 1 , Figure 2 and Figure 3 As shown.

[0025] A meter assembly 2 is slidably connected to one side wall of the track assembly 1, and a drive assembly 3 for limiting the falling position of the meter assembly 2 is fixedly connected to the other side wall of the track assembly 1. The output end of the drive assembly 3 is also connected to the track assembly 1 for transmission, so that the track assembly 1 and the meter assembly 2 are in an engaged or disengaged state. A lubrication assembly 4 for maintaining the meter assembly 2 is also provided on the inner wall of the track assembly 1. An end cover 5 is movably snapped onto the top of the lubrication assembly 4. A side guard plate 6 is provided on one side wall of the track assembly 1.

[0026] Specifically, the output end of the drive component 3 is used to drive the track component 1, which facilitates switching between different states to engage or disengage the meter component 2. When the drive component 3 engages with the meter component 2, it can control the meter component 2 to move vertically downward along the track component 1, and the lubrication component 4 lubricates the connection between the track component 1 and the meter component 2 during the movement of the meter component 2. When the drive component 3 disengages from the meter component 2, it can remove the meter component 2 horizontally, making the meter component 2 easy to install.

[0027] The track assembly 1 includes a guide rail housing 11; for example, such as Figure 4 As shown.

[0028] One end of the guide rail housing 11 is an open structure, and the other end of the guide rail housing 11 is a closed structure. A first central groove 12 is provided at the center of the central axis of one side wall of the guide rail housing 11. Two sets of first guide grooves 13 are also provided on one side wall of the guide rail housing 11, and the two sets of first guide grooves 13 are symmetrically arranged with the central axis of the first central groove 12 as the center. Hollow sliding cavities 14 are provided at both ends of one side wall of the guide rail housing 11. Two sets of helical racks 15 are slidably connected to the inner wall of the guide rail housing 11, and the ends of the two sets of helical racks 15 extend to one side of the hollow sliding cavity 14. A storage box 16 is fixedly connected to the inner wall of the guide rail housing 11 near the bottom. A recycling pipe 17 is provided at the bottom of the storage box 16, and the recycling pipe 17 extends to the outside of the guide rail housing 11.

[0029] The meter assembly 2 includes a meter frame 21; for example, such as Figure 5 As shown.

[0030] The meter frame 21 is slidably attached to the outer wall of the guide rail housing 11 and to the side near the opening. Two sets of linkage shafts 22 are fixedly connected to the inner wall of the meter frame 21. A first gear 23 is rotatably connected to the two sets of linkage shafts 22, and both sets of first gears 23 are meshed with the helical rack 15. One end of each set of linkage shafts 22 is slidably attached to the inner wall of the first guide groove 13.

[0031] Furthermore, both sets of the first gear 23 are helical gears.

[0032] The drive component 3 includes a mounting plate 31; for example, such as Figure 6 As shown.

[0033] Both ends of the mounting plate 31 are provided with electric slides 32. The connection between the two sets of electric slides 32 and the mounting plate 31 is fixedly connected by limiting plates 33. A second central groove 34 is opened at the center of the central axis of the outer wall of the mounting plate 31. Two sets of second guide grooves 35 are also opened on the outer wall of the mounting plate 31, and the two sets of second guide grooves 35 are symmetrically arranged with the central axis of the second central groove 34 as the center. Several sets of internal threaded holes 36 are opened on both sides of the outer wall of the mounting plate 31 near the edge. Limiting magnets 37 are attached to the outer wall of the mounting plate 31. A through hole is passed through the limiting magnet 37. A limiting screw is provided, and one end of the limiting screw is threaded into the internal threaded hole 36. A movable magnet 38 is provided on the top of the limiting magnet 37, and the connection between the movable magnet 38 and the limiting magnet 37 is magnetically abutting each other. A positioning hole 39 is provided on the movable magnet 38. Two sets of limiting sleeves 310 are also embedded in the movable magnet 38. The inner walls of the two sets of limiting sleeves 310 are fitted and connected to the ends of the two sets of linkage shafts 22. Long bolts 311 are threaded on both sides of the movable magnet 38, and one end of the long bolts 311 is abutting and connected to the electric slide table 32 on one side.

[0034] The lubrication assembly 4 includes two sets of guide liner tubes 41; for example, such as Figure 7 As shown.

[0035] Both sets of guide inner liner tubes 41 are provided with a maintenance mechanism 43 at their top, and the maintenance mechanism 43 is located at the top of the guide rail housing 11. The end cap 5 seals and protects the different positions of the maintenance mechanism 43 from dust. The ends of both sets of guide inner liner tubes 41 and the side away from the maintenance mechanism 43 are fixedly connected to the bottom of the inner wall of the guide rail housing 11. An extension groove 42 is provided on the outer wall of one set of guide inner liner tubes 41.

[0036] The maintenance mechanism 43 includes a first maintenance gear 431; for example, such as Figure 8 As shown.

[0037] A second maintenance gear 433 is provided on the top of the first maintenance gear 431. Both ends of the second maintenance gear 433 and the first maintenance gear 431 are rotatably connected to the inner walls of two sets of guide inner liner tubes 41. A linkage pin 432 is fixedly connected to one end of the first maintenance gear 431. One end of the linkage pin 432 passes through the first central groove 12 and the second central groove 34 in sequence and extends into the positioning hole 39. Tension springs 434 are provided at both ends of the first maintenance gear 431 and the second maintenance gear 433, and both sets of tension springs 434 are located inside the guide inner liner tubes 41. A limiting gear 435 is horizontally provided on one side of the second maintenance gear 433. Oil storage channels 436 are fixedly connected to the side walls of both ends of the limiting gear 435. A base plate 437 is provided at the bottom of the end cap 5, and the base plate 437 is fixedly connected to the top of the guide rail housing 11. Both ends of the limiting gear 435 are threadedly connected to lead screws 438, and the bottom ends of the two sets of lead screws 438 are rotatably connected to the top of the base plate 437. The top ends of the two sets of lead screws 438 are drivenly connected to the output end of a micro motor, and the side of the micro motor away from the output end is fixedly connected to the top of the inner wall of the end cap 5. An oil injection branch pipe 439 is provided at the top of the oil storage channel 436, and a micro oil pump is provided on the oil injection branch pipe 439. The length of the oil injection branch pipe 439 is the same as the length of the second maintenance gear 433, and several sets of oil injection through holes are opened on the outer wall of the oil injection branch pipe 439 near the connection between the second maintenance gear 433 and the limiting gear 435.

[0038] Specifically, while the meter frame 21 is snapped into one side wall of the guide rail housing 11, one end of each of the two sets of linkage shafts 22 passes through the first guide groove 13 and the second guide groove 35 in sequence, so that one end of each of the two sets of linkage shafts 22 extends into the limiting sleeve 310. The output ends of the two sets of electric slides 32 pass through the hollow slide cavity 14 and drive the two sets of helical racks 15. As the two sets of helical racks 15 approach each other, they mesh with the two sets of first gears 23. By utilizing the characteristic that the first gears 23 and the two sets of helical racks 15 are connected by helical tooth surfaces, the meshing connection can be achieved while also preventing them from falling off. While the micro motor drives the lead screw 438 to rotate, the limiting gear 435 moves up and down radially along the lead screw 438. During this process, it can lock and separate from the second maintenance gear 433. Before separation, the lubricating oil in the oil storage channel 436 is injected into the surface of the second maintenance gear 433 through the oil injection branch pipe 439. During the upward movement of the limiting gear 435, it separates from the second maintenance gear 433. Then, the action of two sets of tension springs 434 pulls the second maintenance gear 433 closer to the first maintenance gear 431, so that the first maintenance gear 431 meshes with the bottom of the two sets of first gears 23, and the second maintenance gear 433 meshes with the top of the two sets of first gears 23, thereby improving the stability of the overall structure during the lifting and lowering of the two sets of first gears 23. During the descent of the two sets of first gears 23, they can contact the second maintenance gear 433 which is covered with lubricating oil. The second maintenance gear 433 can contact the first gear 23, the first maintenance gear 431 and the helical racks 15 on both sides, which is used to simultaneously lubricate and maintain the internal guide rail structure of the meter during the descent of the meter body 24. The limiting magnet 37 and the movable magnet 38 are connected in a state of mutual magnetic aversion, which can buffer the fall of the meter body 24 during the fall of the meter body 24, prevent the meter body 24 from being in a buffered positioning state, and reduce the probability of collision between the meter body 24 and the guide rail during the installation process. The storage box 16 can promptly collect any excess lubricating oil that may drip from the upper gear of the first maintenance gear 431, preventing excess lubricating oil from dripping onto the bottom of the inner wall of the guide rail housing 11 and causing corrosion of the guide rail structure. The storage box 16 can also store excess lubricating oil, allowing it to evaporate naturally inside the guide rail housing 11 and preventing the gear transmission components inside the guide rail housing 11 from drying out.

[0039] The working principle of an easy-to-install electricity meter proposed in this embodiment of the invention is as follows: While the meter frame 21 is snapped onto one side wall of the guide rail housing 11, one end of each of the two sets of linkage shafts 22 passes through the first guide groove 13 and the second guide groove 35 in sequence, so that one end of each of the two sets of linkage shafts 22 extends into the limiting sleeve 310. The output ends of the two sets of electric slides 32 pass through the hollow slide cavity 14 and drive the two sets of helical racks 15. As the two sets of helical racks 15 approach each other, they mesh with the two sets of first gears 23. By utilizing the characteristic that the first gears 23 and the two sets of helical racks 15 are connected by helical tooth surfaces, the meshing connection can be achieved while also preventing them from falling off. While the micro motor drives the lead screw 438 to rotate, the limit gear 435 moves up and down radially along the lead screw 438. During this process, it can lock and separate from the second maintenance gear 433. Before separation, the lubricating oil in the oil storage channel 436 is injected into the surface of the second maintenance gear 433 through the oil injection branch pipe 439. During the upward movement of the limit gear 435, it separates from the second maintenance gear 433. Then, the action of two sets of tension springs 434 pulls the second maintenance gear 433 closer to the first maintenance gear 431, so that the first maintenance gear 431 meshes with the bottom of the two sets of first gears 23, and the second maintenance gear 433 meshes with the top of the two sets of first gears 23, thereby improving the overall stability of the structure during the lifting and lowering of the two sets of first gears 23. During the descent of the two sets of first gears 23, they can come into contact with the second maintenance gear 433, which is covered with lubricating oil. The second maintenance gear 433 can contact the first gear 23, the first maintenance gear 431, and the helical racks 15 on both sides, which is used to simultaneously lubricate and maintain the internal guide rail structure of the meter during the descent of the meter body 24. By connecting the limiting magnet 37 and the movable magnet 38 in a state of mutual magnetic aversion, the falling of the meter body 24 can be buffered, preventing the meter body 24 from being in a buffered positioning state and reducing the probability of collision between the meter body 24 and the guide rail during installation. The storage box 16 can promptly collect any excess lubricating oil that may drip from the upper gear of the first maintenance gear 431, preventing excess lubricating oil from dripping onto the bottom of the inner wall of the guide rail housing 11 and causing corrosion to the guide rail structure. The storage box 16 can also store excess lubricating oil, allowing it to evaporate naturally inside the guide rail housing 11 and preventing the gear transmission components inside the guide rail housing 11 from drying out.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An easy-to-install electricity meter, characterized in that: The system includes a track assembly (1), a meter assembly (2) is slidably connected to one side wall of the track assembly (1), and a drive assembly (3) for limiting the falling position of the meter assembly (2) is fixedly connected to the other side wall of the track assembly (1). The output end of the drive assembly (3) is also connected to the track assembly (1) for transmission, so that the track assembly (1) and the meter assembly (2) are in a state of engagement or disengagement. The inner wall of the track assembly (1) is also provided with a lubrication assembly (4) for maintaining the meter assembly (2). The top of the lubrication assembly (4) is movably snapped with an end cap (5). A side guard plate (6) is provided on one side wall of the track assembly (1).

2. The easy-to-install electricity meter according to claim 1, characterized in that: The track assembly (1) includes a guide rail housing (11); one end of the guide rail housing (11) is an open structure and the other end of the guide rail housing (11) is a closed structure. A first central groove (12) is provided at the center of the central axis of one side wall of the guide rail housing (11). Two sets of first guide grooves (13) are also provided on one side wall of the guide rail housing (11), and the two sets of first guide grooves (13) are symmetrically arranged with the central axis of the first central groove (12) as the center.

3. The easy-to-install electricity meter according to claim 2, characterized in that: Hollow cavities (14) are provided at both ends of one side wall of the guide rail housing (11). Two sets of helical racks (15) are slidably connected to the inner wall of the guide rail housing (11), and the ends of the two sets of helical racks (15) extend to one side of the hollow cavities (14). A storage box (16) is fixedly connected to the inner wall of the guide rail housing (11) near the bottom. A recycling pipe (17) is provided at the bottom of the storage box (16), and the recycling pipe (17) extends to the outside of the guide rail housing (11).

4. The easy-to-install electricity meter according to claim 1, characterized in that: The meter assembly (2) includes a meter frame (21); the meter frame (21) is slidably attached to the outer wall of the guide rail housing (11) and close to the opening side; the inner wall of the meter frame (21) is fixedly connected to two sets of linkage shafts (22); the two sets of linkage shafts (22) are rotatably connected to a first gear (23); and the two sets of first gears (23) are meshed with a helical rack (15); one end of the two sets of linkage shafts (22) is slidably attached to the inner wall of the first guide groove (13).

5. The easy-to-install electricity meter according to claim 1, characterized in that: The drive assembly (3) includes a mounting plate (31); both ends of the mounting plate (31) are provided with electric slides (32), and the connection between the two sets of electric slides (32) and the mounting plate (31) is fixedly connected by a limiting plate (33). A second center groove (34) is provided at the center of the central axis of the outer wall of the mounting plate (31).

6. The easy-to-install electricity meter according to claim 5, characterized in that: The outer wall of the mounting plate (31) is also provided with two sets of second guide grooves (35), and the two sets of second guide grooves (35) are symmetrically arranged with the central axis of the second central groove (34) as the center. The outer wall of the mounting plate (31) and both sides near the edge are provided with several sets of internal threaded holes (36). The outer wall of the mounting plate (31) is fitted with a limiting magnet (37), and a limiting screw passes through the limiting magnet (37), and one end of the limiting screw is threaded into the internal threaded hole (36).

7. The easy-to-install electricity meter according to claim 6, characterized in that: The top of the limiting magnet (37) is provided with a movable magnet (38), and the connection between the movable magnet (38) and the limiting magnet (37) is magnetically abutting each other. The movable magnet (38) is provided with a positioning hole (39), and two sets of limiting sleeves (310) are also embedded in the movable magnet (38). The inner walls of the two sets of limiting sleeves (310) are fitted and connected to the ends of the two sets of linkage shafts (22). Both sides of the movable magnet (38) are threaded with long bolts (311), and one end of the long bolts (311) is abutting and connected to the electric slide (32) on one side.

8. The easy-to-install electricity meter according to claim 1, characterized in that: The lubrication assembly (4) includes two sets of guide inner tubes (41); the top of each of the two sets of guide inner tubes (41) is provided with a maintenance mechanism (43), and the maintenance mechanism (43) is located on the top of the guide rail housing (11). The end cap (5) seals and protects the different positions of the maintenance mechanism (43) from dust. The ends of the two sets of guide inner tubes (41) and the side away from the maintenance mechanism (43) are fixedly connected to the bottom of the inner wall of the guide rail housing (11). An extension groove (42) is opened on the outer wall of one set of guide inner tubes (41).

9. The easy-to-install electricity meter according to claim 8, characterized in that: The maintenance mechanism (43) includes a first maintenance gear (431); a second maintenance gear (433) is provided on the top of the first maintenance gear (431), and both ends of the second maintenance gear (433) and the first maintenance gear (431) are rotatably connected to the inner walls of two sets of guide inner liner tubes (41). One end of the first maintenance gear (431) is fixedly connected to a linkage pin (432), and one end of the linkage pin (432) passes through the first central groove (12) and the second central groove (34) in sequence, and extends into the positioning hole (39). Both ends of the first maintenance gear (431) and the second maintenance gear (433) are provided with tension springs (434), and both sets of tension springs (434) are located in the guide inner liner tubes (41). A limit gear (435) is horizontally provided on one side of the second maintenance gear (433), and oil storage channels (436) are fixedly connected to the side walls of both ends of the limit gear (435).

10. The easy-to-install electricity meter according to claim 9, characterized in that: The bottom of the limiting gear (435) is provided with a base plate (437), and the base plate (437) is fixedly connected to the top of the guide rail housing (11). Both ends of the limiting gear (435) are threaded with lead screws (438), and the bottom ends of the two sets of lead screws (438) are rotatably connected to the top of the base plate (437). The top ends of the two sets of lead screws (438) are drivenly connected to the output end of a micro motor, and the side of the micro motor away from the output end is fixedly connected to the top of the inner wall of the end cover (5). The top of the oil storage channel (436) is provided with an oil injection branch pipe (439), and a micro oil pump is provided on the oil injection branch pipe (439). The length of the oil injection branch pipe (439) is the same as the length of the second maintenance gear (433), and several sets of oil injection through holes are opened on the outer wall of the oil injection branch pipe (439) near the connection between the second maintenance gear (433) and the limiting gear (435).

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