An external circuit breaker for an electric energy meter and a method of using the same

Abstract

The application belongs to the technical field of circuit breakers, and particularly relates to an external circuit breaker for an electric energy meter and a use method thereof, which comprises: a mounting box, the outer wall of the mounting box is fixedly connected with a fixed plate, and the inner wall of the fixed plate is rotationally connected with a cover; the external circuit breaker for the electric energy meter further comprises: a cleaning mechanism, the outer wall of the cleaning mechanism is rotationally connected with the inner wall of the mounting box; and an auxiliary mechanism, the outer wall of the auxiliary mechanism is fixedly connected with the inner wall of the mounting box away from one side of the fixed plate. The auxiliary mechanism is arranged to reduce the contact between the circuit breaker body and the external connection in the use process, to avoid the climbing of insects and ants into the internal part of the circuit breaker body and the damage of the circuit breaker. The limiting assembly can wrap the circuit breaker body with the protection assembly in the use process, can absorb the moisture in the air, can keep the circuit breaker body dry, can reduce the rusting and corrosion, can prolong the use time of the circuit breaker, can avoid the damage of the circuit breaker, and can avoid the situation of causing the injury of the staff.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of circuit breakers, in particular to an external circuit breaker of an electric energy meter and a use method thereof. BACKGROUND

[0002] The circuit breaker refers to a switching device capable of closing, carrying and opening the current under normal circuit conditions and capable of closing, carrying and opening the current under abnormal circuit conditions within a specified time. The circuit breaker can be used to distribute electric energy, infrequently start an asynchronous motor, and protect power lines and motors, etc. When serious overloads or short circuits and under-voltage faults occur, the circuit breaker can automatically cut off the circuit. Its function is equivalent to the combination of a fuse-type switch and an overheat relay, and after breaking the fault current, generally no parts need to be replaced.

[0003] The external circuit breaker of the electric energy meter is usually exposed to the external environment. Due to the up-down swing of the switch, a gap is left at the upper and lower edges, especially when the switch swings down, the gap at the upper edge is larger, and when the switch swings up, the gap at the lower edge is larger, which causes insects, dust and water vapor to enter the internal part of the circuit breaker. SUMMARY

[0004] In view of the deficiencies of the prior art, the technical scheme adopted by the application to solve the technical problems is: an external circuit breaker of an electric energy meter, comprising: a mounting box, a fixed plate is fixedly connected to the outer wall of the mounting box, and a cover is rotatably connected to the inner wall of the fixed plate;

[0005] The external circuit breaker of the electric energy meter further comprises:

[0006] A cleaning mechanism, the outer wall of the cleaning mechanism is rotatably connected to the inner wall of the mounting box;

[0007] The cleaning mechanism comprises a telescopic rod, the outer wall of the telescopic rod is rotatably connected to the inner wall of the mounting box, the outer wall of the telescopic rod is fixedly connected with a water injection pipe, the outer wall of the water injection pipe is fixedly connected with a sponge roller, and a rear scraper is arranged above the sponge roller;

[0008] An auxiliary mechanism, the outer wall of the auxiliary mechanism is fixedly connected to the side of the inner wall of the mounting box away from the fixed plate;

[0009] The auxiliary mechanism comprises a circuit breaker body, the outer wall of the circuit breaker body is fixedly connected with the inner wall of the mounting box away from one side of the fixed plate, a cover is rotationally connected with one side of the circuit breaker body close to the fixed plate, a warning assembly is fixedly connected with the inner wall of the cover, a limiting assembly is fixedly connected with the inner wall of the warning assembly, a protection assembly is fixedly connected with one side of the circuit breaker body close to the cover, so as to reduce the contact between the circuit breaker body and the outside world during use, avoid insects from climbing into the circuit breaker body and causing damage to the circuit breaker, and the limiting assembly can wrap the circuit breaker body with the protection assembly during use, absorb moisture in the air, keep the circuit breaker body dry, reduce rust and corrosion, and prolong the service life of the circuit breaker.

[0010] Further, the telescopic rods are symmetrically arranged, the outer wall of the rear scraper is rotationally connected with the opposite sides of the telescopic rods, and the outer surface of the limiting assembly is rotationally connected with the inner wall of the cover.

[0011] Further, the cleaning mechanism further comprises a connecting pipe, the outer wall of the connecting pipe is fixedly connected with the outer wall of the sponge roller, a water injection piston is fixedly connected with one end of the connecting pipe away from the sponge roller, the outer surface of the one end of the connecting pipe away from the sponge roller is slidingly connected with the inner wall of the fixed plate, and the inner wall of the rear scraper is fixedly connected with a supporting plate.

[0012] Further, the warning assembly comprises a U-shaped plate, a square hole is formed in the outer surface of the cover, the outer wall of the U-shaped plate is sleeved with the inner wall of the square hole, a buckle is fixedly connected with the inner wall of the U-shaped plate, one end of the buckle away from the cover is slidingly connected with the outer wall of the cover, one end of the U-shaped plate close to the circuit breaker body is fixedly connected with the outer wall of the limiting assembly, sealing plates are symmetrically arranged on the outer wall of the U-shaped plate, the outer surface of the sealing plates is slidingly connected with one side of the outer wall of the cover close to the square hole, a rotating rod is rotationally connected with the top of the inner wall of the U-shaped plate, the outer wall of the rotating rod is rotationally connected with the inner wall of the cover, an elastic rod is fixedly connected with the top of the rotating rod, a warning sign is fixedly connected with the top of the elastic rod, and the outer wall of the warning sign is slidingly connected with the inner wall of the cover.

[0013] Further, the limiting assembly comprises a rotating plate, the outer wall of the rotating plate is rotationally connected with the inner wall of the cover, the rotating plate is provided with two, a supporting rod is rotationally connected with the inner wall of the rotating plate, one end of the supporting rod away from the rotating plate is fixedly connected with a connecting line, the outer wall of the connecting line is fixedly connected with a sleeve, and the outer wall of the sleeve is fixedly connected with an elastic sheet.

[0014] Further, the protection assembly comprises a shutter, the outer wall of the shutter is rotationally connected with the inner wall of the circuit breaker body, the shutter is uniformly provided with an extension column close to one end of the cover, the outer wall of the extension column is fixedly connected with the outer surface of the shutter, and a touch block is fixedly connected with the end of the extension column away from the shutter, the outer wall of the circuit breaker body is symmetrically provided with a shell, the inner wall of the shell is rotationally connected with a cover cloth, and the inner wall of the cover cloth is fixedly connected with the outer surface of the shutter, so that the purpose of preventing insects is achieved, and the shutter can be pulled up and down without affecting the shutter, when the air is humid, the water absorption of the cover cloth keeps the surface of the shutter dry, reduces the entry of water vapor into the circuit breaker, and causes damage or rust to internal parts.

[0015] A use method of an external circuit breaker of an electric energy meter, comprising the following steps:

[0016] S1: the installation box is installed in the wall body, the fixed plate is located on the surface of the wall body, the circuit breaker body is connected with the electric wire, the cleaning mechanism is initially located in the installation box, the cover is buckled with the fixed plate, and the circuit breaker body is connected with the electric wire;

[0017] S2: when power failure occurs, the warning board is raised, the cover and the shell are opened by the maintenance personnel, the touch block is pulled out and pushed upward, the shutter is pushed up to form a passage, and then the touch block is retracted;

[0018] S3: dust and sundries are accumulated in the installation box, when cleaning is needed, a small amount of water is injected into the water injection piston in the installation box, the water is injected into the sponge roller, the connecting pipe is pulled, the sponge roller moistens the dust at the bottom of the installation box, and the dust is scraped to the installation box opening by the rear scraping plate, and then the sundries are collected by the maintenance personnel;

[0019] S4: when power failure does not occur, the limiting assembly is driven by the warning assembly to attach the protection assembly to the circuit breaker body, so that the circuit breaker body achieves the effects of insect and moisture prevention.

[0020] The beneficial effects of the present application are as follows:

[0021] The existing external circuit breaker of the electric energy meter is usually exposed to the external environment, and due to the up-down swing of the switch, the upper and lower edges will have gaps, which will cause insects, dust and water vapor to enter the internal part of the circuit breaker, the auxiliary mechanism is arranged in the present application to reduce the contact between the circuit breaker body and the external environment during use, to avoid insects from climbing into the internal part of the circuit breaker body and causing damage to the circuit breaker, the limiting assembly can assist the protection assembly to wrap the circuit breaker body when in use, and absorb the moisture in the air, so that the circuit breaker body remains dry and reduces the rust and corrosion, thereby prolonging the service life of the circuit breaker.

[0022] When the circuit breaker is overhauled, direct maintenance usually causes dust in the installation box to enter the circuit breaker, affecting the use of the circuit breaker, the cleaning mechanism is arranged, dust is adhered to the sponge roller, and meanwhile, the rear scraper removes sundries and dirt on the sponge roller to the outlet of the installation box, the sundries are cleaned by the worker, the worker manually cleans the inside of the installation box during overhauling is avoided, and once the circuit breaker is damaged, the worker is injured.

[0023] When the worker overhauls, the situation that the circuit breaker is more cannot intuitively see that a brake vane is broken, and careful observation is required, the warning assembly is arranged, the brake vane is popped to the lower side while driving the U-shaped plate to move downward, meanwhile, the rotating rod drives the warning board to move upward, so that the warning board is located outside the cover shell, the worker is prompted, the worker quickly finds the power-off condition, the overhauling time is saved, meanwhile, power is provided for the limiting assembly and the protection assembly during use, and the worker is facilitated to operate.

[0024] Especially when the switch of the circuit breaker is swung downward, the gap between the upper edge and the switch is large, dust and water vapor are easy to enter, the protection assembly and the limiting assembly are arranged, the inner wall of the cover cloth is fixedly connected with the outer surface of the brake vane, the brake vane is completely covered and the use of the brake vane is not affected, so that the purpose of preventing insects is achieved, meanwhile, the brake vane is not affected to be pulled up and down, when air is humid, the water absorption of the cover cloth keeps the surface of the brake vane dry, water vapor entering the inside of the circuit breaker is reduced, and internal parts are damaged or rusted. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the present application;

[0026] Figure 2 is a sectional view of the present application;

[0027] Figure 3 is a structural schematic view of the cleaning mechanism of the present application;

[0028] Figure 4 is an enlarged view of the rear scraper of the present application;

[0029] Figure 5 is a sectional view of the auxiliary mechanism of the present application;

[0030] Figure 6 is a structural schematic view of the warning assembly of the present application;

[0031] Figure 7 is a structural schematic view of the limiting assembly of the present application;

[0032] Figure 8 is a sectional view of the protection assembly of the present application;

[0033] Figure 9 is a flow chart of the use method of the external circuit breaker of the electric energy meter of the present application.

[0034] In the figure: 1, mounting box; 2, fixed plate; 3, cover; 4, cleaning mechanism; 401, telescopic rod; 402, water injection pipe; 403, sponge roller; 404, rear scraper; 405, connecting pipe; 406, water injection piston; 407, support plate; 5, auxiliary mechanism; 501, circuit breaker body; 502, cover; 503, warning assembly; 5031, U-shaped plate; 5032, square hole; 5033, buckle; 5034, sealing plate; 5035, rotating rod; 5036, elastic rod; 5037, warning board; 504, limiting assembly; 5041, rotating plate; 5042, support rod; 5043, connecting line; 5044, sleeve; 5045, elastic sheet; 505, protection assembly; 5051, brake pad; 5052, telescopic column; 5053, touch block; 5054, shell; 5055, cover cloth. DETAILED DESCRIPTION

[0035] The present application will be further described below in conjunction with the drawings and specific embodiments. The embodiments of the present application are given for the purpose of illustration and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical application of the present application, and to enable those of ordinary skill in the art to understand the present application in order to design various embodiments with various modifications suitable for specific use.

[0036] Embodiment 1, please refer to Figures 1-5 The present application provides a technical solution: an external circuit breaker for electric energy meter and its use method are described as follows.

[0037] It comprises a mounting box 1, the outer wall of the mounting box 1 is fixedly connected with a fixed plate 2, the inner wall of the fixed plate 2 is rotatably connected with a cover 3, the cover 3 is made of translucent plastic material;

[0038] The external circuit breaker for electric energy meter further comprises:

[0039] A cleaning mechanism 4, the outer wall of the cleaning mechanism 4 is rotatably connected with the inner wall of the mounting box 1;

[0040] An auxiliary mechanism 5, the outer wall of the auxiliary mechanism 5 is fixedly connected with the inner wall of the mounting box 1 away from one side of the fixed plate 2;

[0041] When installing, the fixed plate 2 is located flush with the surface of the wall body, the installation box 1 is located inside the wall body, the cleaning mechanism 4 is placed inside the installation box 1, the auxiliary mechanism 5 covers the circuit breaker, reduces the contact of the circuit breaker with air, and finally the cover 3 is buckled, when maintenance is needed, the cleaning mechanism is first taken out from the installation box 1, a small amount of water is injected, the sundries and dust inside the installation box 1 are cleaned out, then the auxiliary mechanism 5 is opened, and maintenance is carried out.

[0042] The auxiliary mechanism 5 comprises a circuit breaker body 501, the outer wall of the circuit breaker body 501 is fixedly connected with the inner wall of the installation box 1 away from the side of the fixed plate 2, a cover shell 502 is rotationally connected to the side of the circuit breaker body 501 close to the fixed plate 2, the cover shell 502 is made of translucent plastic material, which can reduce the contact of the circuit breaker body 501 with air, a warning assembly 503 is fixedly connected to the inner wall of the cover shell 502, a limiting assembly 504 is fixedly connected to the inner wall of the warning assembly 503, a protection assembly 505 is fixedly connected to the side of the circuit breaker body 501 close to the cover shell 502, and the outer surface of the limiting assembly 504 is rotationally connected with the inner wall of the cover shell 502.

[0043] After the circuit is connected, the cover shell 502 is buckled on the circuit breaker body 501, then the staff presses the warning assembly 503, the warning assembly 503 drives the limiting assembly 504 to paste the protection assembly 505 on the circuit breaker body 501, when maintenance is needed, the warning assembly 503 is pressed, the warning assembly 503 drives the limiting assembly 504 to move away from the circuit breaker body 501, then the cover shell 502 is opened, and the protection assembly 505 is used to restore the circuit breaker body 501 to normal work, the cover shell 502 can reduce the contact of the circuit breaker body 501 with external connection in the use process, avoids insects from climbing into the circuit breaker body 501, and causes damage to the circuit breaker, the limiting assembly 504 can assist the protection assembly 505 to wrap the circuit breaker body 501 in use, absorbs moisture in the air, keeps the circuit breaker body 501 dry, reduces rust and corrosion, and prolongs the service life of the circuit breaker.

[0044] The cleaning mechanism 4 comprises telescopic rods 401, the outer wall of the telescopic rods 401 is rotationally connected with the inner wall of the installation box 1, the outer wall of the telescopic rods 401 is fixedly connected with water injection pipes 402, the water injection pipes are uniformly provided with small holes, the outer wall of the water injection pipes 402 is fixedly connected with sponge rollers 403, the inside of the sponge rollers 403 is communicated with the inner wall of connecting pipes 405, rear scraper plates 404 are arranged above the sponge rollers 403, the bottom of the rear scraper plates 404 is in contact with the bottom of the inner wall of the installation box 1, the telescopic rods 401 are symmetrically arranged, and the outer wall of the rear scraper plates 404 is rotationally connected with the opposite sides of the telescopic rods 401.

[0045] The cleaning mechanism 4 further comprises a connecting pipe 405, which is a hose connected closely with the telescopic rod 401, the outer wall of the connecting pipe 405 is fixedly connected with the outer wall of the sponge roller 403, one end of the connecting pipe 405 away from the sponge roller 403 is fixedly connected with a water injection piston 406, the water injection piston 406 is placed in the installation box 1 during normal use, the outer surface of the one end of the connecting pipe 405 away from the sponge roller 403 is slidingly connected with the inner wall of the fixed plate 2, the inner wall of the rear scraper 404 is fixedly connected with a support plate 407, the surface of the support plate 407 is in contact with the top of the sponge roller 403, and the sponge roller 403 is used for cleaning the sponge roller 403.

[0046] When the circuit breaker needs to be overhauled, the inside of the installation box 1 needs to be cleaned, so that the dust accumulated in the installation box 1 for many years does not come into contact with the parts of the circuit breaker, thereby affecting the maintenance work of the circuit breaker. At this time, the worker first takes out the water injection piston 406 and opens the water injection piston 406, pours a small amount of water into the water injection piston 406, then injects the water into the water injection pipe 402 through the piston, wets the sponge roller 403, then pulls the connecting pipe 405, so that the sponge roller 403 moves around the telescopic rod 401 under the pulling of the connecting pipe 405, the telescopic rod 401 appropriately telescopes with the movement of the sponge roller 403, so that the sponge roller 403 is in contact with the rear scraper 404 and the bottom of the inner wall of the installation box 1. During the movement of the sponge roller 403, the dust will adhere to the sponge roller 403 due to the wet surface of the sponge roller 403, and the sundries are scraped by the rear scraper 404 to the outlet of the installation box 1, and the sundries are cleaned by the worker, so that the worker manually cleans the inside of the installation box 1 during the overhaul, and once the circuit breaker is damaged, the worker is easy to be injured.

[0047] Embodiment 2, please refer to Figures 1-9The application provides a technical scheme: on the basis of the embodiment one, the warning assembly 503 comprises a U-shaped plate 5031, a square hole 5032 is formed in the outer surface of the cover 502, the outer wall of the U-shaped plate 5031 is sleeved with the inner wall of the square hole 5032, the inner wall of the U-shaped plate 5031 is fixedly connected with a buckle 5033, the buckle 5033 can position the U-shaped plate 5031, move with the U-shaped plate 5031 and fix the U-shaped plate 5031, one end of the buckle 5033 away from the cover 3 is slidably connected with the outer wall of the cover 502, one end of the U-shaped plate 5031 close to the circuit breaker main body 501 is fixedly connected with the outer wall of the limiting assembly 504, the outer wall of the U-shaped plate 5031 is symmetrically provided with a sealing plate 5034, the sealing plate 5034 shields the square hole 5032 when the U-shaped plate 5031 moves, avoids reinforcing the cover 502 and keeps the sealing property of the cover 502, the outer surface of the sealing plate 5034 is slidably connected with the side of the outer wall of the cover 502 close to the square hole 5032, the top of the inner wall of the U-shaped plate 5031 is rotatably connected with a rotating rod 5035, the outer wall of the rotating rod 5035 is rotatably connected with the inner wall of the cover 502, the top of the rotating rod 5035 is fixedly connected with an elastic rod 5036, the top of the elastic rod 5036 is fixedly connected with a warning board 5037, the warning board 5037 represents that the circuit breaker is powered off when being raised, and the outer wall of the warning board 5037 is slidably connected with the inner wall of the cover 502.

[0048] After the circuit breaker is installed, the staff presses the U-shaped plate 5031, so that the U-shaped plate 5031 is fixed under the action of the buckle 5033, at this time, the shutter 5051 is located above, the U-shaped plate 5031 is located at the top of the square hole 5032, when being powered off, the shutter 5051 is bounced to below while driving the U-shaped plate 5031 to move downwards, meanwhile, the rotating rod 5035 drives the warning board 5037 to move upwards, so that the warning board 5037 is located outside the cover 502, which prompts the staff, facilitates the staff to quickly find the power-off condition and saves the maintenance time.

[0049] The limiting assembly 504 comprises a rotating plate 5041, the outer wall of the rotating plate 5041 is rotatably connected with the inner wall of the cover 502, the rotating plate 5041 is provided with two, the two rotating plates 5041 can freely rotate with each other, the inner wall of the rotating plate 5041 is rotatably connected with a supporting rod 5042, one end of the supporting rod 5042 away from the rotating plate 5041 is fixedly connected with a connecting line 5043, the connecting line 5043 is inelastic, the outer wall of the connecting line 5043 is fixedly connected with a sleeve 5044, the outer wall of the sleeve 5044 is fixedly connected with an elastic sheet 5045, and the material of the elastic sheet 5045 is rubber.

[0050] The protection assembly 505 comprises a shutter 5051, the outer wall of the shutter 5051 is rotationally connected with the inner wall of the circuit breaker body 501, the shutter 5051 is uniformly provided with an extension column 5052 close to one end of the cover 502, the outer wall of the extension column 5052 is fixedly connected with the outer surface of the shutter 5051, the extension column 5052 is fixedly connected with a touch block 5053 at the end away from the shutter 5051, the touch block 5053 is made of insulating material, the outer wall of the circuit breaker body 501 is symmetrically provided with a shell 5054, the cover cloth 5055 in the shell 5054 is in a rolled state and can be automatically rolled, the inner wall of the shell 5054 is rotationally connected with the cover cloth 5055, the inner wall of the cover cloth 5055 is fixedly connected with the outer surface of the shutter 5051, the cover cloth 5055 is made of relatively dense water-absorbing material, and the edge of the cover cloth 5055 blocks the circuit breaker body 501 through plastic shaping.

[0051] When the staff presses the U-shaped plate 5031, the sleeve 5044 is driven to move towards the cover cloth 5055, the connecting line 5043 is driven to rotate the rotating rod 5035 under the sleeve 5044, the rotating rod 5035 presses the cover cloth 5055 close to the shutter 5051 from the outside of the cover cloth 5055, and the cover cloth 5055 is pressed on the surface of the shutter 5051 under the driving of the elastic sheet 5045, so that the position of the shutter 5051 is covered, the shutter 5051 is completely blocked by the cover cloth 5055, the purpose of preventing insects is achieved, and the shutter 5051 is not affected to be pulled up and down. When the air is humid, the water-absorbing property of the cover cloth 5055 keeps the surface of the shutter 5051 dry, reduces the entry of water vapor into the circuit breaker, and causes damage or rust to internal parts. When the circuit breaker is powered off, the staff pulls the touch block 5053 downwards and then pulls it upwards, so as to drive the shutter 5051 to return to the passage position. Since the shutter 5051 is small, the operation range is small, and the staff needs to put the hand close to the circuit breaker body 501. The extension of the shutter 5051 can reduce the danger.

[0052] A use method of an external circuit breaker of an electric energy meter, comprising the following steps:

[0053] S1: install the mounting box 1 in the wall body, so that the fixed plate 2 is located on the surface of the wall body, connect the circuit breaker body 501 with the electric wire, and initially locate the cleaning mechanism 4 in the mounting box 1, and buckle the cover 3 with the fixed plate 2;

[0054] S2: when the power is off, the warning board 5037 is raised, the maintenance personnel open the cover 3 and the cover 502, pull out the touch block 5053, push it upwards, push up the shutter 5051 to form a passage, and then pull back the touch block 5053;

[0055] S3: Accumulate dust and sundries in the installation box 1, when cleaning, inject a small amount of water into the water injection piston 406 from the installation box 1, inject water into the sponge roller 403, pull the connecting pipe 405, make the sponge roller 403 wet the dust at the bottom of the installation box 1, and be scraped to the mouth of the installation box 1 by the rear scraper 404, and then the sundries are collected by the maintenance personnel;

[0056] S4: When there is no power failure, the limiting assembly 504 is driven by the warning assembly 503 to adhere the protective assembly 505 to the circuit breaker body 501, so that the circuit breaker body 501 realizes the effect of preventing insects and moisture.

[0057] The specific working process is as follows:

[0058] During installation, the fixed plate 2 is located at a position flush with the surface of the wall body, the installation box 1 is located inside the wall body, and the cleaning mechanism 4 is placed inside the installation box 1. After the circuit is connected, the cover 502 is first buckled on the circuit breaker body 501, then the staff presses the warning assembly 503, the warning assembly 503 drives the limiting assembly 504 to adhere the protective assembly 505 to the circuit breaker body 501, when maintenance is needed, press the warning assembly 503, the warning assembly 503 drives the limiting assembly 504 to move away from the circuit breaker body 501, then open the cover 502, use the protective assembly 505 to restore the circuit breaker body 501 to normal work, the cover 502 can reduce the contact between the circuit breaker body 501 and the external connection during use, avoid insects from climbing into the circuit breaker body 501, and cause damage to the circuit breaker. When maintenance is needed, first take out the cleaning mechanism from the installation box 1, inject a small amount of water, clean out the sundries and dust inside the installation box 1, then open the auxiliary mechanism 5 for maintenance.

[0059] Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art and related fields without creative labor shall belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. An external circuit breaker for an electricity meter, specifically comprising: The mounting box (1) is characterized in that: a fixing plate (2) is fixedly connected to the outer wall of the mounting box (1), and a cover (3) is rotatably connected to the inner wall of the fixing plate (2). The external circuit breaker of the energy meter also includes: The cleaning mechanism (4) has its outer wall rotatably connected to the inner wall of the mounting box (1); The cleaning mechanism (4) includes a telescopic rod (401), the outer wall of the telescopic rod (401) is rotatably connected to the inner wall of the mounting box (1), a water injection pipe (402) is fixedly connected to the outer wall of the telescopic rod (401), a sponge roller (403) is fixedly connected to the outer wall of the water injection pipe (402), and a rear scraper (404) is provided above the sponge roller (403). The auxiliary mechanism (5) is fixedly connected to the inner wall of the mounting box (1) on the side away from the fixing plate (2); The auxiliary mechanism (5) includes a circuit breaker body (501), the outer wall of the circuit breaker body (501) is fixedly connected to the inner wall of the mounting box (1) away from the fixing plate (2), a cover (502) is rotatably connected to the side of the circuit breaker body (501) close to the fixing plate (2), a warning component (503) is fixedly connected to the inner wall of the cover (502), a limit component (504) is fixedly connected to the inner wall of the warning component (503), and a protective component (505) is fixedly connected to the side of the circuit breaker body (501) close to the cover (502). The limiting component (504) includes a rotating plate (5041), the outer wall of which is rotatably connected to the inner wall of the cover (502). Two rotating plates (5041) are provided. A support rod (5042) is rotatably connected to the inner wall of the rotating plate (5041). A connecting line (5043) is fixedly connected to one end of the support rod (5042) away from the rotating plate (5041). A sleeve (5044) is fixedly connected to the outer wall of the connecting line (5043). An elastic sheet (5045) is fixedly connected to the outer wall of the sleeve (5044). The protective component (505) includes a brake plate (5051), the outer wall of which is rotatably connected to the inner wall of the circuit breaker body (501). Telescopic columns (5052) are evenly arranged at one end of the brake plate (5051) near the cover (502). The outer wall of the telescopic column (5052) is fixedly connected to the outer surface of the brake plate (5051). A touch block (5053) is fixedly connected at one end of the telescopic column (5052) away from the brake plate (5051). The outer wall of the circuit breaker body (501) is symmetrically provided with a housing (5054), and the inner wall of the housing (5054) is rotatably connected with a cover (5055). The inner wall of the cover (5055) is fixedly connected to the outer surface of the brake plate (5051).

2. The external circuit breaker for an electricity meter according to claim 1, characterized in that: Two telescopic rods (401) are symmetrically arranged. The outer wall of the rear scraper (404) is rotatably connected to the opposite side of the telescopic rod (401). The outer surface of the limiting component (504) is rotatably connected to the inner wall of the cover (502).

3. The external circuit breaker for an electricity meter according to claim 1, characterized in that: The cleaning mechanism (4) also includes a connecting pipe (405), the outer wall of which is fixedly connected to the outer wall of the sponge roller (403), a water injection piston (406) is fixedly connected to one end of the connecting pipe (405) away from the sponge roller (403), the outer surface of the end of the connecting pipe (405) away from the sponge roller (403) is slidably connected to the inner wall of the fixing plate (2), and a support plate (407) is fixedly connected to the inner wall of the rear scraper (404).

4. The external circuit breaker for an electricity meter according to claim 1, characterized in that: The warning component (503) includes a U-shaped plate (5031), and a square hole (5032) is provided on the outer surface of the cover (502). The outer wall of the U-shaped plate (5031) is fitted with the inner wall of the square hole (5032). A buckle (5033) is fixedly connected to the inner wall of the U-shaped plate (5031). The end of the buckle (5033) away from the cover (3) is slidably connected to the outer wall of the cover (502). The end of the U-shaped plate (5031) close to the circuit breaker body (501) is fixedly connected to the outer wall of the limiting component (504).

5. The external circuit breaker for an electricity meter according to claim 4, characterized in that: The outer wall of the U-shaped plate (5031) is symmetrically provided with sealing plates (5034). The outer surface of the sealing plate (5034) is slidably connected to the outer wall of the cover (502) near the square hole (5032). The top of the inner wall of the U-shaped plate (5031) is rotatably connected with a rotating rod (5035). The outer wall of the rotating rod (5035) is rotatably connected to the inner wall of the cover (502). The top of the rotating rod (5035) is fixedly connected with an elastic rod (5036). The top of the elastic rod (5036) is fixedly connected with a warning sign (5037). The outer wall of the warning sign (5037) is slidably connected to the inner wall of the cover (502).

6. The method of using the external circuit breaker for the electricity meter according to any one of claims 1-5, characterized in that, Includes the following steps: S1: Install the mounting box (1) inside the wall, so that the fixing plate (2) is located on the wall surface, connect the circuit breaker body (501) to the wire, the cleaning mechanism (4) is initially located inside the mounting box (1), and fasten the cover (3) to the fixing plate (2); S2: When the power is off, the warning sign (5037) rises, the maintenance personnel open the cover (3) and the casing (502), pull out the touch block (5053) and push it upward to push up the brake plate (5051) to form a passage, and then retract the touch block (5053). S3: When dust and debris accumulate in the installation box (1) and need to be cleaned, inject a small amount of water into the water injection piston (406) from the installation box (1), inject the water into the sponge roller (403), pull the connecting pipe (405) so that the sponge roller (403) wets the dust at the bottom of the installation box (1) and is scraped to the opening of the installation box (1) by the rear scraper (404), and then the maintenance personnel collect the debris. S4: When there is no power outage, the limit component (504) will, driven by the warning component (503), attach the protective component (505) to the circuit breaker body (501), so that the circuit breaker body (501) can achieve the effect of insect and moisture prevention.

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