Self-cleaning ammeter

Abstract

The invention discloses a self-cleaning electric meter, and relates to the technical field of electric meters, the self-cleaning electric meter comprises a fixing plate, the upper and lower ends of the fixing plate are provided with mounting holes, the surface of the fixing plate is provided with an electric meter body, the two sides of the electric meter body are fixedly connected with side seats, the electric meter body is fixedly installed on the fixing plate through bolts, and the side seats are fixedly connected with the electric meter body. A wiring terminal is arranged at the bottom of the electric meter body, an outer cover is detachably installed on the surface of the electric meter body, and a box door is rotationally connected to the outer cover. The electric meter box is reasonable in structure, the box door can be opened and closed through the butt joint assembly, the electric meter body can be conveniently overhauled, and then dust or water stains on the inner surface of the perspective window can be conveniently wiped off through cooperative use of the scraping assembly and the driving assembly.

Description

Technical Field

[0001] This invention relates to the field of electricity meter technology, and in particular to a self-cleaning electricity meter. Background Technology

[0002] An electricity meter, short for energy meter, is an instrument used to measure electrical energy. It is also called a kilowatt-hour meter, watt-hour meter, or simply an electricity meter. The development of electricity meters has progressed from mechanical meters to electronic meters to smart electronic meters. Mechanical meters are rarely used now, while electronic meters are widely used. Within the State Grid Corporation's operating area, smart meters account for 40% of the installed capacity. Electricity meters can display data such as electricity consumption, demand, voltage, current, power, time, and remaining balance.

[0003] Existing electricity meters have a window outside the indicator panel for viewing electricity consumption information. Since most smart meters are installed outdoors, the inner surface of the smart meter window is very prone to dust or water stains. Users need to use tools to remove the meter cover and then wipe the dust off the inner surface of the window glass. The accumulation of dust over a long period of time affects the reading of electricity meter data. Summary of the Invention

[0004] The purpose of this application is to provide a self-cleaning electricity meter that allows the door to be opened and closed via a docking component, facilitating the maintenance of the meter body. Furthermore, the use of a scraping component and a drive component facilitates the wiping away of dust or water stains from the inner surface of the viewing window.

[0005] To achieve the above objectives, this application provides the following technical solution: a self-cleaning electricity meter, comprising a fixing plate, mounting holes at the top and bottom of the fixing plate, an electricity meter body mounted on the surface of the fixing plate, side seats fixedly connected to both sides of the electricity meter body, the electricity meter body fixedly mounted on the fixing plate by bolts, a wiring terminal provided at the bottom of the electricity meter body, an outer cover detachably mounted on the surface of the electricity meter body, a door rotatably connected to the outer cover, a viewing window mounted on the surface of the door, symmetrically formed movable grooves on the surface of the fixing plate, a handle fixedly connected to the surface of the door, and a through hole at the bottom of the outer cover; further comprising a docking assembly, a scraping assembly, and a driving assembly, the docking assembly being disposed on the inner wall of the door for cooperative use, the scraping assembly being disposed on the inner wall of the door for cleaning deposits on the inner wall of the viewing window, and the driving assembly being disposed on the inner wall of the door for cooperative use with the scraping assembly.

[0006] Preferably, the docking assembly includes a locking plate fixedly installed on the inner wall of the outer cover, with locking grooves at both ends of the locking plate, a limiting plate fixedly installed on the inner wall of the box door, a sliding groove inside the limiting plate, a pair of sliders slidably connected to the sliding groove, a fixing post fixedly connected to the pair of sliders, the middle position of the fixing post being locked inside the locking groove, and a first baffle plate fixedly connected to the bottom end of the fixing post.

[0007] Preferably, a drive shaft is fixedly connected to the inner wall of the door, a pull plate is fixedly connected to the drive shaft, a first guide groove is provided on the pull plate, and the fixed column is slidably connected inside the first guide groove.

[0008] Preferably, a geared disc is fixedly connected to the bottom end of the drive shaft, a toothed plate meshes on the geared disc, a mating block is fixedly connected to one side of the toothed plate, a sleeve block is fixedly connected to the other end of the mating block, a ring is fixedly connected to one side of the sleeve block, the sleeve block is slidably connected to a slide rod, both ends of the slide rod are fixedly connected to a first bearing seat, and the top end of the first bearing seat is fixedly connected to the bottom end of the door.

[0009] Preferably, a spring is sleeved on the slide rod, and the two ends of the spring are fixedly connected to the inner side of the first bearing seat and one side of the ring, respectively. A pull column is fixedly connected to the sleeve block, and the top end of the pull column extends to the outside of the box door through the movable groove.

[0010] Preferably, the scraping assembly includes two sets of second bearings fixedly installed on the inner wall of the box door, a fixed rod fixedly connected between opposite second bearings, a pulley slidably connected on the fixed rod, the pulley being rotatably connected to a mounting base, a side plate fixedly connected to one side of the mounting base, the other end of the side plate fixedly connected to a support plate, a scraper fixedly connected to the top surface of the support plate, and a collection box detachably connected to one side of the scraper.

[0011] Preferably, a horizontal plate is fixedly connected to one side of the mounting base, an adjusting column is fixedly connected to the horizontal plate, and a collar is fixedly connected to the bottom end of the adjusting column.

[0012] Preferably, the drive assembly includes a main shaft fixedly connected to the inner wall of the door, a sleeve fixedly connected to the bottom end of the main shaft, an arm plate fixedly connected to the outer surface of the sleeve, a second guide groove and a third guide groove on the arm plate, and an adjusting column slidably connected inside the third guide groove.

[0013] Preferably, a sliding shaft is slidably connected inside the second guide groove. The top end of the sliding shaft is fixedly connected to an adjusting block. The adjusting block is threadedly connected to a threaded rod. The two ends of the threaded rod are rotatably connected to a third shaft seat. The top end of the third shaft seat is fixedly connected to the inner wall of the door.

[0014] Preferably, one end of the threaded rod is fixedly connected to a first pulley, a transmission belt is sleeved on the first pulley, the other end of the transmission belt is sleeved on a second pulley, the second pulley is fixedly connected to a drive shaft, the other end of the drive shaft is fixedly connected to the output end of a drive motor, and the drive motor is fixedly installed on the inner wall of the box door.

[0015] In summary, the present invention has the following beneficial effects: This invention has a reasonable structure. When the box door is opened, the pull column inside the movable groove is pulled. The pull column is fixedly connected to the sleeve block. The pull column causes the sleeve block to slide on the slide rod. The movement of the sleeve block facilitates the pulling of the spring. The movement of the sleeve block drives the toothed plate to move through the docking block. The toothed plate and the toothed disc mesh with each other. The movement of the sleeve block causes the transmission shaft on the toothed disc to rotate. The rotation of the transmission shaft causes the fixed column to slide inside the first guide groove, which facilitates the sliding of the fixed column and makes it easy for the fixed column to disengage from the inside of the slot, thus facilitating the opening of the box door. In this invention, when cleaning the dust and attachments on the inner surface of the viewing window, the upper arm plate of the drive assembly is rotated to make the adjusting column slide inside the third guide groove. Then, the adjusting column is fixedly connected to the horizontal plate, and one end of the horizontal plate is fixedly connected to the mounting base. A pulley is rotatably connected to the mounting base. The movement of the adjusting column drives the pulley to slide on the surface of the fixed rod, thereby facilitating the movement of the support plate on the side plate. The scraper on the support plate is attached to the inner surface of the viewing window. The movement of the support plate scrapes the dust and attachments on the inner surface of the viewing window into the collection box for collection, making it convenient for people to observe the value on the meter body through the viewing window. 3. In this invention, the drive motor operates to rotate the drive shaft. A second pulley is fixedly connected to one end of the drive shaft. The rotation of the drive shaft drives the second pulley to rotate. A transmission belt is sleeved on the second pulley, and the other end of the transmission belt is sleeved on the first pulley. The rotation of the second pulley drives the first pulley to rotate through the transmission belt, thereby facilitating the rotation of the threaded rod on the first pulley. The rotation of the threaded rod causes the sliding shaft on the adjusting block to slide inside the second guide groove, thereby facilitating the rotation of the sleeve on the arm plate on the main shaft. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the fixed plate; Figure 2 This is a side view of the three-dimensional structure of the fixed plate; Figure 3 This is a schematic diagram of the three-dimensional structure of the electricity meter body; Figure 4 This is a schematic diagram of the internal structure of the outer casing in cross-section; Figure 5 This is a schematic diagram of the three-dimensional structure inside the box door; Figure 6 This is a schematic diagram of the three-dimensional structure of the docking components; Figure 7 A schematic diagram of the three-dimensional structure of the scraping component; Figure 8 for Figure 5 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Fixing plate; 101. Mounting hole; 102. Meter body; 103. Side seat; 104. Bolt; 105. Terminal block; 106. Outer cover; 107. Box door; 108. Viewing window; 109. Movable groove; 110. Handle; 112. Through hole; 2. Clamping plate; 201. Clamping groove; 202. Limiting plate; 203. Sliding groove; 204. Sliding block; 205. Fixing post; 206. First baffle; 207. Drive shaft; 208. Pull plate; 209. First guide groove; 210. Gear plate; 3. Gear plate; 301. Connecting block; 302. Sleeve block; 303. Ring; 304. Sliding rod; 305. 4. First shaft seat; 306. Spring; 307. Pull column; 4. Second shaft seat; 401. Fixed rod; 402. Pulley; 403. Mounting seat; 404. Side plate; 405. Support plate; 406. Scraper; 407. Collection box; 408. Horizontal plate; 409. Adjusting column; 410. Collar; 5. Main shaft; 501. Sleeve; 502. Arm plate; 503. Second guide groove; 504. Third guide groove; 505. Sliding shaft; 506. Adjusting block; 507. Threaded rod; 508. Third shaft seat; 509. First pulley; 510. Transmission belt; 511. Second pulley; 512. Drive shaft; 513. Drive motor. Detailed Implementation

[0019] 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, and 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.

[0020] Example: Reference Figure 1 - Figure 8 The self-cleaning electricity meter shown includes a fixing plate 1 with mounting holes 101 at both ends. An electricity meter body 102 is mounted on the surface of the fixing plate 1. Side seats 103 are fixedly connected to both sides of the electricity meter body 102. The electricity meter body 102 is fixedly mounted on the fixing plate 1 by bolts 104. A wiring terminal 105 is provided at the bottom of the electricity meter body 102. An outer cover 106 is detachably mounted on the surface of the electricity meter body 102. A door 107 is rotatably connected to the outer cover 106. The surface of the door 107 is decorated with... The enclosure includes a viewing window 108, symmetrical movable grooves 109 on the surface of the fixed plate 1, a handle 110 fixedly connected to the surface of the door 107, and a wire hole 112 at the bottom of the outer cover 106. It also includes a docking assembly, a scraping assembly, and a driving assembly. The docking assembly is mounted on the inner wall of the door 107 for use in conjunction with the door. The scraping assembly is mounted on the inner wall of the door 107 for cleaning deposits on the inner wall of the viewing window 108. The driving assembly is mounted on the inner wall of the door 107 for use in conjunction with the scraping assembly.

[0021] Specifically, it should be noted that the meter body 102 and the drive motor 513 are electrically connected by wires, and their specific working principles are based on existing technology, which will not be elaborated on here.

[0022] In one embodiment of this invention, the docking assembly includes a locking plate 2 fixedly installed on the inner wall of the outer cover 106. The locking plate 2 has locking grooves 201 at both ends. A limiting plate 202 is fixedly installed on the inner wall of the door 107. A sliding groove 203 is formed inside the limiting plate 202. A pair of sliders 204 are slidably connected to the sliding groove 203. A fixing post 205 is fixedly connected to the pair of sliders 204. The middle part of the fixing post 205 is locked inside the locking groove 201. A first baffle 206 is fixedly connected to the bottom end of the fixing post 205. A drive shaft 207 is fixedly connected to the inner wall of the door 107. A pull plate 208 is fixedly connected to the drive shaft 207. A first guide groove 209 is formed on the pull plate 208. A fixing post is slidably connected inside the first guide groove 209. 205. A gear disc 210 is fixedly connected to the bottom end of the drive shaft 207. A toothed plate 3 meshes on the gear disc 210. A mating block 301 is fixedly connected to one side of the toothed plate 3. A sleeve block 302 is fixedly connected to the other end of the mating block 301. A ring 303 is fixedly connected to one side of the sleeve block 302. The sleeve block 302 is slidably connected to the slide rod 304. Both ends of the slide rod 304 are fixedly connected to the first bearing seat 305. The top end of the first bearing seat 305 is fixedly connected to the bottom end of the door 107. A spring 306 is sleeved on the slide rod 304. Both ends of the spring 306 are fixedly connected to the inner side of the first bearing seat 305 and one side of the ring 303, respectively. A pull post 307 is fixedly connected to the sleeve block 302. The top end of the pull post 307 extends to the outside of the door 107 through the movable groove 109.

[0023] Specifically, when the door 107 is opened, the pull column 307 inside the movable groove 109 is pulled. The pull column 307 is fixedly connected to the sleeve block 302. The pull column 307 causes the sleeve block 302 to slide on the slide rod 304. The movement of the sleeve block 302 facilitates the pulling of the spring 306. The movement of the sleeve block 302 drives the toothed plate 3 to move through the docking block 301. The toothed plate 3 meshes with the toothed disc 210. The movement of the sleeve block 302 causes the transmission shaft 207 on the toothed disc 210 to rotate. The rotation of the transmission shaft 207 causes the fixed column 205 to slide inside the first guide groove 209, which facilitates the sliding of the fixed column 205 and makes it easier for the fixed column 205 to disengage from the slot 201, thus facilitating the opening of the door 107.

[0024] As one embodiment of this invention, the scraping assembly includes two sets of second bearing seats 4 fixedly installed on the inner wall of the box door 107. A fixing rod 401 is fixedly connected between the opposing second bearing seats 4. A pulley 402 is slidably connected to the fixing rod 401. The pulley 402 is rotatably connected to the mounting base 403. A side plate 404 is fixedly connected to one side of the mounting base 403. The other end of the side plate 404 is fixedly connected to the support plate 405. A scraper 406 is fixedly connected to the top surface of the support plate 405. A collection box 407 is detachably connected to one side of the scraper 406. A horizontal plate 408 is fixedly connected to one side of the mounting base 403. An adjusting column 409 is fixedly connected to the horizontal plate 408. A collar 410 is fixedly connected to the bottom end of the adjusting column 409.

[0025] Specifically, when cleaning the dust and attachments on the inner surface of the viewing window 108, the upper arm plate 502 of the drive assembly is rotated to make the adjusting column 409 slide inside the third guide groove 504. Then, the adjusting column 409 is fixedly connected to the horizontal plate 408, and one end of the horizontal plate 408 is fixedly connected to the mounting base 403. A pulley 402 is rotatably connected to the mounting base 403. The movement of the adjusting column 409 drives the pulley 402 to slide on the surface of the fixed rod 401, thereby facilitating the movement of the support plate 405 on the side plate 404. The scraper 406 on the support plate 405 is attached to the inner surface of the viewing window 108. The movement of the support plate 405 scrapes the dust and attachments on the inner surface of the viewing window 108 into the collection box 407 for collection, so that the value on the meter body 102 can be observed manually through the viewing window 108.

[0026] In one embodiment of this invention, the drive assembly includes a main shaft 5 fixedly connected to the inner wall of the door 107. A sleeve 501 is fixedly connected to the bottom end of the main shaft 5. An arm plate 502 is fixedly connected to the outer surface of the sleeve 501. A second guide groove 503 and a third guide groove 504 are provided on the arm plate 502. An adjusting post 409 is slidably connected inside the third guide groove 504. A sliding shaft 505 is slidably connected inside the second guide groove 503. The top end of the sliding shaft 505 is fixedly connected to an adjusting block 506, and the adjusting block 506 is threadedly connected to a screw... On the threaded rod 507, both ends of the threaded rod 507 are rotatably connected to the third bearing 508. The top end of the third bearing 508 is fixedly connected to the inner wall of the door 107. One end of the threaded rod 507 is fixedly connected to the first pulley 509. A transmission belt 510 is sleeved on the first pulley 509. The other end of the transmission belt 510 is sleeved on the second pulley 511. The second pulley 511 is fixedly connected to the drive shaft 512. The other end of the drive shaft 512 is fixedly connected to the output end of the drive motor 513. The drive motor 513 is fixedly installed on the inner wall of the door 107.

[0027] Specifically, the drive motor 513 operates to rotate the drive shaft 512. A second pulley 511 is fixedly connected to one end of the drive shaft 512. The rotation of the drive shaft 512 drives the second pulley 511 to rotate. A transmission belt 510 is sleeved on the second pulley 511, and the other end of the transmission belt 510 is sleeved on the first pulley 509. The rotation of the second pulley 511 drives the first pulley 509 to rotate through the transmission belt 510, thereby facilitating the rotation of the threaded rod 507 on the first pulley 509. The rotation of the threaded rod 507 causes the sliding shaft 505 on the adjusting block 506 to slide inside the second guide groove 503, thereby facilitating the rotation of the sleeve 501 on the arm plate 502 on the main shaft 5.

[0028] The working principle of this invention is as follows: When the door 107 is opened, the pull column 307 inside the movable groove 109 is pulled. The pull column 307 is fixedly connected to the sleeve block 302. The pull column 307 causes the sleeve block 302 to slide on the slide rod 304. The movement of the sleeve block 302 facilitates the pulling of the spring 306. The movement of the sleeve block 302 drives the toothed plate 3 to move through the docking block 301. The toothed plate 3 and the toothed disc 210 mesh with each other. The movement of the sleeve block 302 causes the transmission shaft 207 on the toothed disc 210 to rotate. The rotation of the transmission shaft 207 causes the fixed column 205 to slide inside the first guide groove 209, thereby facilitating the sliding of the fixed column 205 and facilitating the disengagement of the fixed column 205 from the inside of the slot 201, thus facilitating the opening of the door 107. When cleaning the dust and attachments on the inner surface of the viewing window 108, the upper arm plate 502 of the drive assembly is rotated to make the adjusting column 409 slide inside the third guide groove 504. Then the adjusting column 409 is fixedly connected to the horizontal plate 408, and one end of the horizontal plate 408 is fixedly connected to the mounting base 403. A pulley 402 is rotatably connected to the mounting base 403. The movement of the adjusting column 409 drives the pulley 402 to slide on the surface of the fixed rod 401, which facilitates the movement of the support plate 405 on the side plate 404. The scraper 406 on the support plate 405 is attached to the inner surface of the viewing window 108. The movement of the support plate 405 scrapes the dust and attachments on the inner surface of the viewing window 108 into the collection box 407 for collection, so that the value on the meter body 102 can be observed manually through the viewing window 108. The drive motor 513 operates to rotate the drive shaft 512. A second pulley 511 is fixedly connected to one end of the drive shaft 512. The rotation of the drive shaft 512 drives the second pulley 511 to rotate. A transmission belt 510 is sleeved on the second pulley 511, and the other end of the transmission belt 510 is sleeved on the first pulley 509. The rotation of the second pulley 511 drives the first pulley 509 to rotate through the transmission belt 510, thereby facilitating the rotation of the threaded rod 507 on the first pulley 509. The rotation of the threaded rod 507 causes the sliding shaft 505 on the adjusting block 506 to slide inside the second guide groove 503, thereby facilitating the rotation of the sleeve 501 on the arm plate 502 on the main shaft 5.

[0029] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-cleaning electricity meter, comprising a fixing plate (1), characterized in that, The fixing plate (1) has mounting holes (101) at both the top and bottom ends. The meter body (102) is mounted on the surface of the fixing plate (1). Side seats (103) are fixedly connected to both sides of the meter body (102). The meter body (102) is fixedly mounted on the fixing plate (1) by bolts (104). A terminal block (105) is provided at the bottom of the meter body (102). An outer cover (106) is detachably mounted on the surface of the meter body (102). A door (107) is rotatably connected to the outer cover (106). A viewing window (108) is provided on the surface of the door (107). Movable grooves (109) are symmetrically opened on the surface of the fixing plate (1). A handle (110) is fixedly connected to the surface of the door (107). A wire hole (112) is opened at the bottom of the outer cover (106). It also includes a docking component, a scraping component, and a driving component. The docking component is disposed on the inner wall of the box door (107) for use in conjunction with the scraping component. The scraping component is disposed on the inner wall of the box door (107) for cleaning the deposits on the inner wall of the viewing window (108). The driving component is disposed on the inner wall of the box door (107) for use in conjunction with the scraping component.

2. The self-cleaning electricity meter according to claim 1, characterized in that: The docking assembly includes a card plate (2) fixedly installed on the inner wall of the outer cover (106). The two ends of the card plate (2) are provided with card slots (201). A limit plate (202) is fixedly installed on the inner wall of the box door (107). A sliding groove (203) is provided inside the limit plate (202). A pair of sliders (204) are slidably connected to the sliding groove (203). A fixing post (205) is fixedly connected to the pair of sliders (204). The middle position of the fixing post (205) is locked inside the card slot (201). A first baffle (206) is fixedly connected to the bottom end of the fixing post (205).

3. A self-cleaning electricity meter according to claim 2, characterized in that: A drive shaft (207) is fixedly connected to the inner wall of the door (107), and a pull plate (208) is fixedly connected to the drive shaft (207). A first guide groove (209) is provided on the pull plate (208), and the fixed column (205) is slidably connected inside the first guide groove (209).

4. A self-cleaning electricity meter according to claim 3, characterized in that: A gear disc (210) is fixedly connected to the bottom end of the drive shaft (207). A toothed plate (3) meshes on the gear disc (210). A mating block (301) is fixedly connected to one side of the toothed plate (3). A sleeve block (302) is fixedly connected to the other end of the mating block (301). A ring (303) is fixedly connected to one side of the sleeve block (302). The sleeve block (302) is slidably connected to the slide rod (304). Both ends of the slide rod (304) are fixedly connected to the first bearing seat (305). The top end of the first bearing seat (305) is fixedly connected to the bottom end of the door (107).

5. A self-cleaning electricity meter according to claim 4, characterized in that: A spring (306) is sleeved on the slide rod (304). The two ends of the spring (306) are fixedly connected to the inner side of the first bearing seat (305) and one side of the ring (303), respectively. A pull column (307) is fixedly connected on the sleeve block (302). The top end of the pull column (307) extends to the outside of the box door (107) through the movable groove (109).

6. A self-cleaning electricity meter according to claim 5, characterized in that: The scraping assembly includes two sets of second bearing seats (4) fixedly installed on the inner wall of the box door (107). A fixing rod (401) is fixedly connected between the opposing second bearing seats (4). A pulley (402) is slidably connected on the fixing rod (401). The pulley (402) is rotatably connected to the mounting base (403). A side plate (404) is fixedly connected to one side of the mounting base (403). The other end of the side plate (404) is fixedly connected to the tray (405). A scraper (406) is fixedly connected to the top surface of the tray (405). A collection box (407) is detachably connected to one side of the scraper (406).

7. A self-cleaning electricity meter according to claim 6, characterized in that: A horizontal plate (408) is fixedly connected to one side of the mounting base (403), an adjusting column (409) is fixedly connected to the horizontal plate (408), and a collar (410) is fixedly connected to the bottom end of the adjusting column (409).

8. A self-cleaning electricity meter according to claim 7, characterized in that: The drive assembly includes a main shaft (5) fixedly connected to the inner wall of the door (107), a sleeve (501) fixedly connected to the bottom end of the main shaft (5), an arm plate (502) fixedly connected to the outer surface of the sleeve (501), a second guide groove (503) and a third guide groove (504) are provided on the arm plate (502), and the adjusting column (409) is slidably connected inside the third guide groove (504).

9. A self-cleaning electricity meter according to claim 8, characterized in that: The second guide groove (503) is internally slidably connected to a sliding shaft (505). The top end of the sliding shaft (505) is fixedly connected to an adjusting block (506). The adjusting block (506) is threadedly connected to a threaded rod (507). The two ends of the threaded rod (507) are rotatably connected to a third shaft seat (508). The top end of the third shaft seat (508) is fixedly connected to the inner wall of the box door (107).

10. A self-cleaning electricity meter according to claim 9, characterized in that: One end of the threaded rod (507) is fixedly connected to a first pulley (509), a transmission belt (510) is sleeved on the first pulley (509), the other end of the transmission belt (510) is sleeved on a second pulley (511), the second pulley (511) is fixedly connected to a drive shaft (512), the other end of the drive shaft (512) is fixedly connected to the output end of a drive motor (513), and the drive motor (513) is fixedly installed on the inner wall of the box door (107).

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