External circuit breaker of electric energy meter and use method of external circuit breaker

Abstract

The invention belongs to the technical field of circuit breakers, and particularly relates to an electric energy meter external circuit breaker and a use method thereof, the electric energy meter external circuit breaker comprises a mounting box, the outer wall of the mounting box is fixedly connected with a fixing plate, and the inner wall of the fixing plate is rotatably connected with a blocking cover; the external circuit breaker of the electric energy meter further comprises a cleaning mechanism, wherein the outer wall of the cleaning mechanism is rotationally connected with the inner wall of the mounting box; the outer wall of the auxiliary mechanism is fixedly connected with the side, away from the fixing plate, of the inner wall of the mounting box, and the auxiliary mechanism is arranged, so that contact between the circuit breaker body and external connection in the using process is reduced, and it is avoided that insects and ants climb into the circuit breaker body to damage the circuit breaker; the limiting assembly can assist the protection assembly to wrap the circuit breaker main body and absorb moisture in the air during use, so that the circuit breaker main body is kept dry, the rusting and corrosion conditions are reduced, the service time of the circuit breaker is prolonged, and the conditions that the circuit breaker is damaged and workers are injured are avoided.

Description

Technical Field

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

[0002] A circuit breaker is a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. They can automatically cut off the circuit when they are seriously overloaded or have faults such as short circuit and undervoltage. Its function is equivalent to a combination of a fuse switch and an overheating relay, and generally no parts need to be changed after disconnecting the fault current.

[0003] The external circuit breaker of the electric energy meter is usually exposed to the external environment. Due to the up and down swing of its switch, gaps will be left on the upper and lower edges, especially the gaps on the upper edge when the switch swings down and the lower edge when the switch swings up, which may cause insects, dust and water vapor to enter the circuit breaker. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems by adopting a technical solution: an external circuit breaker for an electric energy meter, comprising: a mounting box, the outer wall of which is fixedly connected to a fixing plate, the inner wall of which is rotatably connected to a blocking cover; The electric energy meter external circuit breaker also includes: A cleaning mechanism, the outer wall of which is rotatably connected to the inner wall of the installation box; The cleaning mechanism comprises a telescopic rod, the outer wall of the telescopic rod is rotatably connected to the inner wall of the installation box, the outer wall of the telescopic rod is fixedly connected to a water injection pipe, the outer wall of the water injection pipe is fixedly connected to a sponge roller, and a rear scraper is arranged above the sponge roller; An auxiliary mechanism, the outer wall of which is fixedly connected to a side of the inner wall of the installation box away from the fixing plate; The auxiliary mechanism includes a circuit breaker body, the outer wall of the circuit breaker body is fixedly connected to the side of the inner wall of the installation box away from the fixed plate, the side of the circuit breaker body close to the fixed plate is rotatably connected with a cover shell, the inner wall of the cover shell is fixedly connected with a warning component, the inner wall of the warning component is fixedly connected with a limit component, and the side of the circuit breaker body close to the cover shell is fixedly connected with a protective component to reduce the contact between the circuit breaker body and the outside during use, prevent insects and ants from crawling into the circuit breaker body and causing damage to the circuit breaker. When in use, the limit component can assist the protective component to wrap the circuit breaker body and absorb moisture in the air to keep the circuit breaker body dry, reduce rust and corrosion, and extend the service life of the circuit breaker.

[0005] Furthermore, two telescopic rods are symmetrically arranged, the outer wall of the rear scraper is rotatably connected to the opposite side of the telescopic rod, and the outer surface of the limit assembly is rotatably connected to the inner wall of the cover shell.

[0006] Furthermore, the cleaning mechanism also includes a connecting tube, the outer wall of the connecting tube is fixedly connected to the outer wall of the sponge roller, the end of the connecting tube away from the sponge roller is fixedly connected to a water injection piston, the outer surface of the connecting tube away from the sponge roller is slidably connected to the inner wall of the fixed plate, and the inner wall of the rear scraper is fixedly connected to a support plate. Dust will adhere to the sponge roller, and debris will be scraped off to the exit of the installation box by the rear scraper. The debris will be cleaned by the staff to avoid the staff from reaching into the installation box for manual cleaning during maintenance, which may easily cause harm to the staff once the circuit breaker is damaged.

[0007] Furthermore, the warning assembly includes a U-shaped plate, the outer surface of the cover shell is provided with a square hole, the outer wall of the U-shaped plate is socketed with the inner wall of the square hole, the inner wall of the U-shaped plate is fixedly connected with a buckle, the end of the buckle away from the baffle is slidably connected to the outer wall of the cover shell, the end of the U-shaped plate close to the circuit breaker body is fixedly connected to the outer wall of the limit assembly, the outer wall of the U-shaped plate is symmetrically provided with a sealing plate, the outer surface of the sealing plate is slidably connected to the side of the outer wall of the cover shell close to the square hole, the top of the inner wall of the U-shaped plate is rotatably connected to a rotating rod, the outer wall of the rotating rod is rotatably connected to the inner wall of the cover shell, the top of the rotating rod is fixedly connected to an elastic rod, the top of the elastic rod is fixedly connected to a warning sign, the outer wall of the warning sign is slidably connected to the inner wall of the cover shell, which serves as a reminder for the staff, facilitates the staff to quickly discover the power outage, and saves maintenance time.

[0008] Furthermore, the limiting assembly includes a rotating plate, the outer wall of the rotating plate is rotatably connected to the inner wall of the cover shell, two rotating plates are provided, the inner wall of the rotating plate is rotatably connected to a support rod, the end of the support rod away from the rotating plate is fixedly connected to a connecting line, the outer wall of the connecting line is fixedly connected to a sleeve, and the outer wall of the sleeve is fixedly connected to an elastic sheet.

[0009] Furthermore, the protection component includes a gate piece, the outer wall of the gate piece is rotatably connected to the inner wall of the circuit breaker body, the gate piece is evenly provided with telescopic columns at one end close to the cover shell, the outer wall of the telescopic column is fixedly connected to the outer surface of the gate piece, and the end of the telescopic column away from the gate piece is fixedly connected to a touch block, and the outer wall of the circuit breaker body is symmetrically provided with a shell, the inner wall of the shell is rotatably connected to a cover cloth, and the inner wall of the cover cloth is fixedly connected to the outer surface of the gate piece, so as to achieve the purpose of insect prevention without affecting the up and down movement of the gate piece. When the air is humid, the water absorption of the cover cloth keeps the surface of the gate piece dry, thereby reducing the entry of water vapor into the interior of the circuit breaker to cause damage or rust to internal parts.

[0010] A method for using an external circuit breaker of an electric energy meter comprises the following steps: S1: Install the installation box in the wall so that the fixing plate is located on the wall surface, connect the circuit breaker body to the wires, the cleaning mechanism is initially located inside the installation box, and the cover is buckled with the fixing plate; S2: When the power is off, the warning sign rises, the maintenance personnel open the cover and the housing, pull out the touch block, and push it upward to push the gate piece up to form a passage, and then retract the touch block; S3: Dust and debris are accumulated in the installation box. When cleaning is required, a small amount of water is injected into the water injection piston from the installation box, and the water is injected into the sponge roller. The connecting pipe is pulled to make the sponge roller wet the dust at the bottom of the installation box, and the dust is scraped to the installation box opening by the rear scraper, and then the debris is collected by the maintenance personnel; S4: When there is no power failure, the limit component, driven by the warning component, fits the protection component onto the circuit breaker body, so that the circuit breaker body can achieve the effect of insect and moisture proof.

[0011] The beneficial effects of the present invention are as follows: The existing external circuit breaker of the electric energy meter is usually exposed to the external environment. Due to the up and down swing of its switch, gaps will be left on the upper and lower edges, which will cause insects, dust and water vapor to enter the circuit breaker. The present invention arranges an auxiliary mechanism to reduce the contact between the circuit breaker body and the outside during use, so as to prevent insects and ants from crawling into the circuit breaker body and causing damage to the circuit breaker. When in use, the limit component can assist the protective component to wrap the circuit breaker body and absorb moisture in the air to keep the circuit breaker body dry, reduce rust and corrosion, and extend the service life of the circuit breaker.

[0012] When the circuit breaker is under maintenance, usually the dust in the installation box will enter the circuit breaker directly, affecting the use of the circuit breaker. The present invention provides a cleaning mechanism to adhere the dust to the sponge roller, and the rear scraper scrapes the debris and dirt on the sponge roller to the exit of the installation box. The debris is cleaned by the staff, avoiding the staff reaching into the installation box for manual cleaning during maintenance, which may cause harm to the staff once the circuit breaker is damaged.

[0013] When the staff is performing maintenance, if there are many circuit breakers, it is not possible to intuitively see that a certain brake piece is broken, and careful observation is required. The present invention provides a warning component. When the power is off, the brake piece bounces downward and drives the U-shaped plate to move downward. At the same time, the rotating rod drives the warning sign to move upward, so that the warning sign is located outside the cover, which serves as a reminder for the staff, making it convenient for the staff to quickly discover the power outage and save maintenance time. At the same time, it provides power to the limit component and the protection component when in use, which is convenient for the staff to operate.

[0014] Especially when the switch of the circuit breaker is swung down, the gaps at its upper edge and at its lower edge when the switch is swung up are relatively large, making it easy for dust and water vapor to enter. The present invention arranges a protective component and a limit component, and the inner wall of the cover cloth is fixedly connected to the outer surface of the gate piece, so that the gate piece is completely covered without affecting the use of the gate piece, thereby achieving the purpose of insect prevention and not affecting the up and down movement of the gate piece. When the air is humid, the water absorption of the cover cloth keeps the surface of the gate piece dry, reducing the entry of water vapor into the interior of the circuit breaker to cause damage or rust to internal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the cleaning mechanism of the present invention; Figure 4 is an enlarged view of the rear scraper of the present invention; Figure 5 is a cross-sectional view of the auxiliary mechanism of the present invention; Figure 6 is a schematic diagram of the structure of the warning component of the present invention; Figure 7 It is a structural schematic diagram of the limit assembly of the present invention; Figure 8 is a cross-sectional view of the protective assembly of the present invention; Fig. 9 The present invention is a flow chart of a method for using an external circuit breaker of an electric energy meter.

[0016] In the figure: 1, installation box; 2, fixing 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 component; 5031, U-shaped plate; 5032, square hole; 5033, Buckle; 5034, sealing plate; 5035, rotating rod; 5036, elastic rod; 5037, warning sign; 504, limit assembly; 5041, rotating plate; 5042, support rod; 5043, connecting line; 5044, sleeve; 5045, elastic sheet; 505, protective assembly; 5051, gate piece; 5052, telescopic column; 5053, touch block; 5054, shell; 5055, cover cloth. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0018] Example 1, please refer to Figure 1-Figure 5 The present invention provides a technical solution: an external circuit breaker for an electric energy meter and a method of using the same are described as follows.

[0019] It comprises: an installation box 1, the outer wall of the installation box 1 is fixedly connected with a fixing plate 2, the inner wall of the fixing plate 2 is rotatably connected with a blocking cover 3, and the blocking cover 3 is made of translucent plastic material; The electric energy meter external circuit breaker also includes: A cleaning mechanism 4, the outer wall of the cleaning mechanism 4 is rotatably connected to the inner wall of the installation box 1; An auxiliary mechanism 5, the outer wall of the auxiliary mechanism 5 is fixedly connected to a side of the inner wall of the installation box 1 away from the fixing plate 2; During installation, the fixing plate 2 is located flush with the wall surface, the installation box 1 is located inside the wall, the cleaning mechanism 4 is placed inside the installation box 1, the auxiliary mechanism 5 covers the circuit breaker to reduce the contact between the circuit breaker and the air, and finally the cover 3 is buckled. When maintenance is needed, the cleaning mechanism is first taken out of the installation box 1, a small amount of water is injected, and after the debris and dust inside the installation box 1 are cleaned out, the auxiliary mechanism 5 is opened for maintenance.

[0020] The auxiliary mechanism 5 includes a circuit breaker body 501, the outer wall of the circuit breaker body 501 is fixedly connected to the side of the inner wall of the installation box 1 away from the fixed plate 2, the circuit breaker body 501 is rotatably connected to the side close to the fixed plate 2 with a cover shell 502, the cover shell 502 is made of translucent plastic material, which can reduce the contact between the circuit breaker body 501 and the air, the inner wall of the cover shell 502 is fixedly connected to a warning component 503, the inner wall of the warning component 503 is fixedly connected to a limiting component 504, the circuit breaker body 501 is fixedly connected to the side close to the cover shell 502 with a protective component 505, and the outer surface of the limiting component 504 is rotatably connected to the inner wall of the cover shell 502.

[0021] After the circuit is connected, the cover 502 is first buckled on the circuit breaker body 501, and then the staff presses the warning component 503, so that the warning component 503 drives the limit component 504 to stick the protection component 505 on the circuit breaker body 501. When maintenance is needed, the warning component 503 is pressed, so that the warning component 503 drives the limit component 504 away from the circuit breaker body 501, and then the cover 502 is opened, and the circuit breaker body 501 is restored to normal operation by using the protection component 505. The cover 502 can reduce the contact between the circuit breaker body 501 and the external connection during use, and prevent insects and ants from crawling into the circuit breaker body 501 and causing damage to the circuit breaker. When in use, the limit component 504 can assist the protection component 505 to wrap the circuit breaker body 501 and absorb moisture in the air to keep the circuit breaker body 501 dry, reduce rust and corrosion, and extend the service life of the circuit breaker.

[0022] 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 installation box 1, the outer wall of the telescopic rod 401 is fixedly connected to a water injection pipe 402, small holes are evenly opened on the water injection pipe, the outer wall of the water injection pipe 402 is fixedly connected to a sponge roller 403, the interior of the sponge roller 403 is connected to the inner wall of the connecting pipe 405, a rear scraper 404 is arranged above the sponge roller 403, the bottom of the rear scraper 404 is in contact with the bottom of the inner wall of the installation box 1, and two telescopic rods 401 are symmetrically arranged, and the outer wall of the rear scraper 404 is rotatably connected to the opposite side of the telescopic rod 401; The cleaning mechanism 4 also includes a connecting tube 405, which is a hose and is tightly connected to the telescopic rod 401. The outer wall of the connecting tube 405 is fixedly connected to the outer wall of the sponge roller 403, and the end of the connecting tube 405 away from the sponge roller 403 is fixedly connected to a water injection piston 406. During normal use, the water injection piston 406 is placed in the installation box 1, and the outer surface of the end of the connecting tube 405 away from the sponge roller 403 is slidably connected to the inner wall of the fixed plate 2, and the inner wall of the rear scraper 404 is fixedly connected to a support plate 407, and the surface of the support plate 407 is in contact with the top of the sponge roller 403 for cleaning the sponge roller 403.

[0023] When the circuit breaker needs to be repaired, the inside of the installation box 1 needs to be cleaned to prevent the installation box 1 from being placed in the external environment all year round, causing the dust accumulated inside to contact the parts of the circuit breaker, thereby affecting the maintenance of the circuit breaker. At this time, the staff first takes out the water injection piston 406, opens the water injection piston 406, and pours a small amount of water into the water injection piston 406, and then injects the water into the water injection pipe 402 through the piston to wet the sponge roller 403, and then pulls the connecting pipe 405 so that the sponge roller 403 is pulled around the extension pipe 405. The retractable rod 401 moves, and the telescopic rod 401 appropriately retracts and contracts with the movement of the sponge roller 403, so that the sponge roller 403 and the rear scraper 404 are set in contact with the bottom of the inner wall of the installation box 1. During the movement of the sponge roller 403, since the surface of the sponge roller 403 is wet, dust will adhere to the sponge roller 403, and the debris will be scraped off to the exit of the installation box 1 by the rear scraper 404. The debris is cleaned by the staff to avoid the staff reaching into the installation box 1 for manual cleaning during maintenance. Once the circuit breaker is damaged, it is easy to cause harm to the staff.

[0024] Example 2, please refer to Figure 1-Figure 9 The present invention provides a technical solution: on the basis of the first embodiment, the warning component 503 includes a U-shaped plate 5031, a square hole 5032 is opened on 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, and the inner wall of the U-shaped plate 5031 is fixedly connected with a buckle 5033, which can limit the U-shaped plate 5031, move with the U-shaped plate 5031 and fix it, the end of the buckle 5033 away from the stop 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, and the outer wall of the U-shaped plate 5031 is symmetrically provided with a sealing plate 5 034, the sealing plate 5034 blocks the square hole 5032 when the U-shaped plate 5031 moves to avoid strengthening the cover shell 502 and maintain the sealing of the cover shell 502. The outer surface of the sealing plate 5034 is slidably connected to the side of the outer wall of the cover shell 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 to the inner wall of the cover shell 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. When the warning sign 5037 is raised, it means that the circuit breaker is powered off. The outer wall of the warning sign 5037 is slidably connected to the inner wall of the cover shell 502.

[0025] After installing the circuit breaker, the staff presses the U-shaped plate 5031 to fix it under the action of the buckle 5033. At this time, the gate piece 5051 is located at the top and the U-shaped plate 5031 is located at the top of the square hole 5032. When the power is off, the gate piece 5051 bounces to the bottom and drives the U-shaped plate 5031 to move downward. At the same time, the rotating rod 5035 drives the warning sign 5037 to move upward, so that the warning sign 5037 is located outside the cover 502, which serves as a reminder for the staff, making it convenient for the staff to quickly discover the power outage and save maintenance time.

[0026] The limiting assembly 504 includes a rotating plate 5041, the outer wall of which is rotatably connected to the inner wall of the cover shell 502. Two rotating plates 5041 are provided, and the two rotating plates 5041 can rotate freely relative to each other. The inner wall of the rotating plate 5041 is rotatably connected to a support rod 5042, and one end of the support rod 5042 away from the rotating plate 5041 is fixedly connected to a connecting line 5043, and the connecting line 5043 is non-elastic. The outer wall of the connecting line 5043 is fixedly connected to a sleeve 5044, and the outer wall of the sleeve 5044 is fixedly connected to an elastic sheet 5045, and the material of the elastic sheet 5045 is rubber.

[0027] The protective component 505 includes a gate piece 5051, the outer wall of the gate piece 5051 is rotatably connected to the inner wall of the circuit breaker body 501, and telescopic columns 5052 are evenly arranged on the end of the gate piece 5051 close to the cover shell 502. The outer wall of the telescopic column 5052 is fixedly connected to the outer surface of the gate piece 5051, and the end of the telescopic column 5052 away from the gate piece 5051 is fixedly connected to a touch block 5053, and 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, and the cover cloth 5055 in the shell 5054 is in a rolled-up state and can be automatically rolled up. The inner wall of the shell 5054 is rotatably connected with the cover cloth 5055, and the inner wall of the cover cloth 5055 is fixedly connected to the outer surface of the gate piece 5051. The cover cloth 5055 is made of a denser water-absorbing material, and the edge of the cover cloth 5055 blocks the circuit breaker body 501 through shaping.

[0028] When the staff presses the U-shaped plate 5031, the sleeve 5044 is driven to move toward the cover cloth 5055. The connecting line 5043 is driven by the sleeve 5044 to drive the rotating rod 5035 to rotate, so that the rotating rod 5035 presses the cover cloth 5055 from the outside of the cover cloth 5055 close to the gate piece 5051, and driven by the elastic sheet 5045, the cover cloth 5055 is pressed on the surface of the gate piece 5051 to cover the vacant position of the gate piece 5051, and the cover cloth 5055 completely blocks the gate piece 5051, thereby achieving the purpose of insect prevention. It affects the up and down movement of the gate piece 5051. When the air is humid, the water absorption of the cover cloth 5055 keeps the surface of the gate piece 5051 dry, reducing the entry of water vapor into the circuit breaker and causing damage or rust to internal parts. When the circuit breaker is powered off, the staff pulls the touch block 5053 downward and then moves it upward, thereby driving the gate piece 5051 to return to the passage position. Since the gate piece 5051 is small, the operable range is small, and the staff's hands need to be close to the circuit breaker body 501. By extending the gate piece 5051, the occurrence of danger can be reduced.

[0029] A method for using an external circuit breaker of an electric energy meter comprises the following steps: S1: Install the installation box 1 in the wall, make the fixing plate 2 located on the wall surface, connect the circuit breaker body 501 with the wires, the cleaning mechanism 4 is initially located inside the installation box 1, and buckle the cover 3 with the fixing plate 2; S2: When the power is off, the warning sign 5037 rises, and the maintenance personnel open the cover 3 and the housing 502, pull out the touch block 5053, and push it upward to push the gate piece 5051 up to form a passage, and then retract the touch block 5053; S3: When dust and debris are accumulated in the installation box 1 and need to be cleaned, a small amount of water is injected into the water injection piston 406 from the installation box 1, and the water is injected into the sponge roller 403, and the connecting pipe 405 is pulled, so that the sponge roller 403 wets the dust at the bottom of the installation box 1, and the dust is scraped to the opening of the installation box 1 by the rear scraper 404, and then the debris is collected by the maintenance personnel; S4: When there is no power failure, the limit component 504, driven by the warning component 503, fits the protection component 505 onto the circuit breaker body 501, so that the circuit breaker body 501 can achieve the effect of insect and moisture proof.

[0030] The specific workflow is as follows: During installation, the fixing plate 2 is located flush with the wall surface, the installation box 1 is located inside the wall, 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, and then the staff presses the warning component 503, so that the warning component 503 drives the limit component 504 to stick the protection component 505 on the circuit breaker body 501. When maintenance is required, the warning component 503 is pressed, so that the warning component 503 drives the limit component 504 away from the circuit breaker body 501, and then the cover 502 is opened, and the circuit breaker body 501 is restored to normal operation by using the protection component 505. The cover 502 can reduce the contact between the circuit breaker body 501 and the external connection during use, and prevent insects and ants from crawling into the circuit breaker body 501 to cause damage to the circuit breaker. When maintenance is required, the cleaning mechanism is first taken out of the installation box 1, a small amount of water is injected, and after the debris and dust inside the installation box 1 are cleaned out, the auxiliary mechanism 5 is opened for maintenance.

[0031] 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 ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An external circuit breaker for an electric energy meter, comprising: The installation box (1) is characterized in that a fixing plate (2) is fixedly connected to the outer wall of the installation box (1), and a blocking cover (3) is rotatably connected to the inner wall of the fixing plate (2); The electric energy meter external circuit breaker also includes: A cleaning mechanism (4), wherein an outer wall of the cleaning mechanism (4) is rotatably connected to an inner wall of the installation box (1); The cleaning mechanism (4) comprises a telescopic rod (401), the outer wall of the telescopic rod (401) being rotatably connected to the inner wall of the installation box (1), the outer wall of the telescopic rod (401) being fixedly connected to a water injection pipe (402), the outer wall of the water injection pipe (402) being fixedly connected to a sponge roller (403), and a rear scraper (404) being arranged above the sponge roller (403); An auxiliary mechanism (5), wherein an outer wall of the auxiliary mechanism (5) is fixedly connected to a side of an inner wall of the installation box (1) away from the fixing plate (2); The auxiliary mechanism (5) comprises a circuit breaker body (501); the outer wall of the circuit breaker body (501) is fixedly connected to a side of the inner wall of the installation box (1) away from the fixed plate (2); the side of the circuit breaker body (501) close to the fixed plate (2) is rotatably connected to a cover shell (502); the inner wall of the cover shell (502) is fixedly connected to a warning component (503); the inner wall of the warning component (503) is fixedly connected to a limit component (504); and the side of the circuit breaker body (501) close to the cover shell (502) is fixedly connected to a protection component (505).

2. The external circuit breaker of the electric energy 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), and the outer surface of the limit assembly (504) is rotatably connected to the inner wall of the cover shell (502).

3. The external circuit breaker of the electric energy meter according to claim 1, characterized in that: The cleaning mechanism (4) further comprises a connecting tube (405), the outer wall of which is fixedly connected to the outer wall of the sponge roller (403), the end of which is away from the sponge roller (403) being fixedly connected to a water injection piston (406), the outer surface of the end of which is away from the sponge roller (403) being slidably connected to the inner wall of the fixed plate (2), and the inner wall of the rear scraper (404) being fixedly connected to a support plate (407).

4. The external circuit breaker of the electric energy meter according to claim 1, characterized in that: The warning assembly (503) comprises a U-shaped plate (5031); a square hole (5032) is provided on the outer surface of the cover shell (502); the outer wall of the U-shaped plate (5031) is sleeved 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); an end of the buckle (5033) away from the blocking cover (3) is slidably connected to the outer wall of the cover shell (502); and an end of the U-shaped plate (5031) close to the circuit breaker body (501) is fixedly connected to the outer wall of the limit assembly (504).

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

6. The external circuit breaker of the electric energy meter according to claim 1, characterized in that: The position limiting assembly (504) comprises a rotating plate (5041), the outer wall of which is rotatably connected to the inner wall of the cover shell (502), two rotating plates (5041) are provided, the inner wall of the rotating plate (5041) is rotatably connected to a support rod (5042), one end of the support rod (5042) away from the rotating plate (5041) is fixedly connected to a connecting line (5043), the outer wall of the connecting line (5043) is fixedly connected to a sleeve (5044), and the outer wall of the sleeve (5044) is fixedly connected to an elastic sheet (5045).

7. The external circuit breaker of the electric energy meter according to claim 1, characterized in that: The protection component (505) comprises a gate piece (5051), the outer wall of the gate piece (5051) is rotatably connected to the inner wall of the circuit breaker body (501), telescopic columns (5052) are evenly arranged at one end of the gate piece (5051) close to the cover (502), the outer wall of the telescopic column (5052) is fixedly connected to the outer surface of the gate piece (5051), and the end of the telescopic column (5052) away from the gate piece (5051) is fixedly connected to a touch block (5053).

8. The external circuit breaker of the electric energy meter according to claim 7, characterized in that: The outer wall of the circuit breaker body (501) is symmetrically provided with a housing (5054); the inner wall of the housing (5054) is rotatably connected with a cover cloth (5055); and the inner wall of the cover cloth (5055) is fixedly connected to the outer surface of the gate piece (5051).

9. A method for using an external circuit breaker of an electric energy meter, characterized in that: The following steps are involved: S1: Install the installation box (1) in the wall so that the fixing plate (2) is located on the surface of the wall, connect the circuit breaker body (501) to the wires, initially position the cleaning mechanism (4) inside the installation box (1), and snap the cover (3) into place with the fixing plate (2); S2: When the power is off, the warning sign (5037) rises, and the maintenance personnel open the cover (3) and the housing (502), pull out the touch block (5053), and push it upward to push the gate piece (5051) up 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, a small amount of water is injected into the water injection piston (406) from the installation box (1), and the water is injected into the sponge roller (403). The connecting pipe (405) is pulled, so that the sponge roller (403) wets the dust at the bottom of the installation box (1), and the dust is scraped to the opening of the installation box (1) by the rear scraper (404), and then the debris is collected by the maintenance personnel; S4: When there is no power failure, the limit component (504), driven by the warning component (503), fits the protection component (505) onto the circuit breaker body (501), so that the circuit breaker body (501) can achieve the effect of preventing insects and moisture.

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