Protective structure of outdoor demarcation high-voltage alternating-current vacuum circuit breaker

Abstract

The utility model provides an outdoor demarcation high-voltage alternating-current vacuum circuit breaker protection structure, which belongs to the technical field of vacuum circuit breakers and comprises a vacuum circuit breaker and an annular seat fixedly mounted on a fixing assembly, and the annular seat is matched with a main protection plate through a limiting rod and a limiting hole, so that a protection assembly is convenient to mount and dismount. The combination of the main protection plate and the auxiliary protection plates on the two sides facilitates the protection of a first insulating cylinder in the vacuum circuit breaker, facilitates the protection of a second insulating cylinder through the protection half pipe, can achieve the protection of the upper part of a knife switch on the vacuum circuit breaker through the combination of the two extension plates, and enables the lower parts of the extension plates to be open, thereby facilitating the contact between a contact end and the knife switch. The use effect of the protection assembly is improved, external air is conveniently pressurized through a micro air pump, then is transferred through an air connection seat, is guided into an air guide pipe through a pipeline, then enters an air guide plate and is sprayed out through an air outlet in the air guide plate, and heat dissipation treatment can be conveniently conducted on the vacuum circuit breaker in the protection assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum circuit breakers, and in particular relates to a protective structure for an outdoor boundary high-voltage AC vacuum circuit breaker. Background Art

[0002] "Vacuum circuit breaker" is named because its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum. It has the advantages of small size, light weight, suitable for frequent operation, and no maintenance required for arc extinguishing. It is widely used in distribution networks. Vacuum circuit breaker is an indoor distribution device in 3~10kV, 50Hz three-phase AC system. It can be used for protection and control of electrical equipment in industrial and mining enterprises, power plants, and substations. It is particularly suitable for use in places that require oil-free, less maintenance and frequent operation. The circuit breaker can be configured in a central cabinet, double-layer cabinet, and fixed cabinet to control and protect high-voltage electrical equipment.

[0003] The authorization publication number "CN 217588793 U" records "an outdoor high-voltage vacuum circuit breaker, including a circuit breaker body, an L-shaped mounting plate and a first semicircular ring clamp, the four corners of the bottom end of the circuit breaker body are each provided with a T-shaped slot, the tops of the four T-shaped slots are respectively engaged and connected with the tops of four rotating rods through two blocks, the middles of the four rotating rods are respectively rotatably connected with the middles of four cross rotating grooves through rotating rings, and the four cross rotating grooves are arranged at the four corners on one side of the top of the L-shaped mounting plate, and the bottoms of the four rotating rods are each provided with an operating rod. The utility model discloses an outdoor high-voltage vacuum circuit breaker. When the circuit breaker body is placed on the L-shaped mounting plate, the rotating rod on the L-shaped mounting plate is interlaced and connected with the T-shaped slot, and then the rotating rod is rotated by holding the operating rod so that the block on the top of the rotating rod is engaged with the top of the T-shaped slot to fix the circuit breaker body on the L-shaped mounting plate. The operation is simple and easy to disassemble later, thereby effectively improving the maintainability of the outdoor high-voltage vacuum circuit breaker."

[0004] The above patent can significantly improve the installation safety of vacuum circuit breakers and avoid the reduction of stability of outdoor high-voltage vacuum circuit breakers. However, the above patent lacks a protective structure for outdoor boundary high-voltage AC vacuum circuit breakers, which are easily affected by factors such as rain erosion, sun exposure and dust, resulting in corrosion and damage to various components of the vacuum circuit breaker, reducing the service life of the vacuum circuit breaker. At the same time, when the temperature is too high, it is also easy to affect the use effect of the vacuum circuit breaker. Utility Model Content

[0005] The purpose of the utility model is to provide a protective structure for outdoor high-voltage AC vacuum circuit breakers. The utility model aims to solve the problem that the above patent lacks a protective structure and a heat dissipation structure for outdoor high-voltage AC vacuum circuit breakers, which affects the service life and use effect of the vacuum circuit breaker.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An outdoor boundary high-voltage AC vacuum circuit breaker protection structure, comprising:

[0008] A vacuum circuit breaker, the vacuum circuit breaker is composed of a base, an insulating cylinder 1, an insulating cylinder 2 and a switch, the insulating cylinder 1 and the insulating cylinder 2 are both installed on the base, and the switch is installed on a side wall of the insulating cylinder;

[0009] A detachable protection mechanism is provided on the vacuum circuit breaker and is used to protect the outdoor boundary high voltage AC vacuum circuit breaker; and

[0010] The heat dissipation mechanism is arranged on the detachable protection mechanism and is used for dissipating heat for the vacuum circuit breaker.

[0011] As a preferred solution of the utility model, the detachable protective mechanism includes:

[0012] A fixing assembly, fixedly mounted on the base, used to support and fix the detachable protective mechanism;

[0013] A protection component, arranged on the fixed component, for protecting the outdoor boundary high voltage AC vacuum circuit breaker; and

[0014] The locking component is arranged on the protection component and is used to lock the protection component.

[0015] As a preferred solution of the utility model, the fixing assembly includes an L-shaped tube and a fixing tube, the L-shaped tube is fixedly connected to the outer wall of one side of the base, the fixing tube is fixedly connected to the top of the base, the outer walls on both sides of the L-shaped tube and the fixing tube are symmetrically fixedly connected with fixing plates, and the outer wall on one side of each fixing plate is provided with a positioning hole;

[0016] The protection assembly comprises an annular seat, which is fixedly connected to the inner wall of the fixed tube, a plurality of limiting holes are opened on the top of the annular seat, a limiting rod is movably embedded in each limiting hole, a main protection plate is fixedly connected between the tops of the plurality of limiting rods, and auxiliary protection plates are rotatably connected to the outer walls on both sides of the main protection plate, and two protective half-tubes are fixedly connected to the outer wall on one side of each auxiliary protection plate;

[0017] The locking assembly includes a support plate, and a plurality of the support plates are provided and divided into two groups. The two groups of the plurality of support plates are respectively and equidistantly fixedly connected to the outer wall of the L-shaped tube and the outer wall of the fixed tube. A locking ring is placed between the tops of each group of the plurality of support plates, and the inner diameters of the two locking rings are respectively adapted to the L-shaped tube and the fixed tube. The outer surface of each locking ring is equidistantly threaded with a plurality of locking bolts, and one end of each locking bolt is fixedly connected with an anti-slip contact.

[0018] As a preferred solution of the utility model, an annular baffle is fixedly connected to the inner wall of the L-shaped tube near the top;

[0019] A protective cover is fixedly connected to the top of the main protective plate, wherein one end of each of the two protective half pipes is fixedly connected to an extension plate, and the two extension plates are adapted to each other;

[0020] A connecting rod is fixedly connected between the outer walls of one side of the two locking rings.

[0021] As a preferred solution of the utility model, the heat dissipation mechanism includes an air guide plate, and a plurality of the air guide plates are provided. Each of the air guide plates is fixedly connected to an inner wall on one side of the main protective plate, and a plurality of air outlets are provided on an outer wall on one side of each of the air guide plates, and the angle of each air outlet is different, and an air guide duct is connected between the outer walls on one side of each two of the air guide plates.

[0022] As a preferred solution of the utility model, the outer wall of one side of the main protective plate is fixedly connected to a micro air pump, the air outlet of the micro air pump is connected to an air connector, and the air connector is connected to one of the air ducts through a pipeline.

[0023] As a preferred solution of the utility model, a handle is fixedly connected to the outer wall of one side of the main protective plate.

[0024] As a preferred solution of the utility model, a windshield plate is fixedly connected to the outer wall of one side of each extension plate.

[0025] As a preferred solution of the utility model, a sealing gasket is fixedly connected to the outer wall of one side of each extension plate.

[0026] Beneficial Effects

[0027] Compared with the prior art, the utility model provides an outdoor boundary high-voltage AC vacuum circuit breaker protection structure, which has the following beneficial effects:

[0028] 1. In the utility model, the annular seat is fixedly installed on the inner wall of the fixed tube, and the height of the annular seat is higher than that of the fixed tube. Therefore, the annular seat can be used to conveniently improve the accuracy of placing the main protective plate above the fixed tube, and at the same time, it can be temporarily limited to facilitate subsequent installation work. The limiting rod on the main protective plate and the limiting hole on the annular seat correspond one to one, which further improves the installation stability and accuracy of the main protective plate. The main protective plate and the protective plates on both sides are combined to facilitate the protection of the insulating cylinder 1 in the vacuum circuit breaker, and the insulating cylinder 2 is conveniently protected by the protective half-tube. The upper part of the knife on the vacuum circuit breaker can be protected by the combination of two extension plates. At the same time, the lower part of the extension plate is opened to facilitate the contact between the contact end and the knife, thereby improving the use effect of the protective component.

[0029] 2. The utility model facilitates the placement of the locking ring through the support plate to prevent it from falling onto the base and affecting the ease of use of the locking ring. The two locking rings correspond to the L-shaped tube and the fixed tube respectively, which facilitates the sliding of the locking ring on the surface of the L-shaped tube and the fixed tube. One of the locking rings slides upward to facilitate locking the combination of two corresponding protective half-tubes, and the other locking ring slides upward to facilitate locking the combination of the main protective plate and the two auxiliary protective plates. The locking ring is conveniently positioned through the locking bolt, and the anti-slip contact on the locking bolt is convenient for abutting against the corresponding main protective plate, auxiliary protective plate and protective half-tube, thereby improving the use effect of the locking assembly.

[0030] 3. The utility model uses a micro air pump to pressurize the external air, and then transfers it through the air connector, and then introduces it into the air guide duct through the pipeline, and then enters the air guide plate. The air guide duct conveniently introduces the wind into the air guide plate, and sprays it out through the air outlet on the air guide plate, which is convenient for heat dissipation of the vacuum circuit breaker inside the protective component, and improves the safety of the vacuum circuit breaker. The angles of the air outlets on the air guide plate are different, which makes it convenient for the air guide plate to cool the vacuum circuit breaker from various angles, and further improves the use effect of the heat dissipation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional diagram of the utility model;

[0032] Figure 2 It is a second perspective stereogram of the utility model;

[0033] Figure 3 It is an exploded view of the utility model;

[0034] Figure 4 For this utility model Figure 3 The enlarged view of point A in the middle;

[0035] Figure 5 For this utility model Figure 3 The enlarged view of point B in the middle;

[0036] Figure 6 For this utility model Figure 3 A three-dimensional view of the middle L-tube;

[0037] Figure 7 For this utility model Figure 3 A stereogram of the middle fixed tube;

[0038] Figure 8 For this utility model Figure 3 Cross-sectional view of the two locking rings.

[0039] Description of the numbers in the figure:

[0040] 1. Vacuum circuit breaker; 101. Base; 102. Insulation tube one; 103. Insulation tube two; 104. Switch; 3. Removable protective mechanism; 4. Heat dissipation mechanism; 401. Air guide plate; 402. Air guide duct; 403. Micro air pump; 404. Air connector; 5. Fixing assembly; 501. L-shaped tube; 502. Fixing tube; 503. Fixing sheet; 504. Annular baffle; 6. Protective assembly; 601. Annular seat; 602. Limiting rod; 603. Main protective plate; 604. Auxiliary protective plate; 605. Protective half pipe; 606. Extension plate; 607. Protective cover; 7. Locking assembly; 701. Support plate; 702. Locking ring; 703. Locking bolt; 704. Anti-slip contact; 705. Connecting rod; 8. Handle; 9. Wind shield; 10. Sealing pad. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] Example:

[0043] See also Figure 1-8 , the utility model provides the following technical solutions:

[0044] An outdoor boundary high-voltage AC vacuum circuit breaker protection structure, comprising:

[0045] The vacuum circuit breaker 1 is composed of a base 101, an insulating cylinder 102, an insulating cylinder 2 103 and a knife 104. The insulating cylinder 102 and the insulating cylinder 2 103 are both installed on the base 101, and the knife 104 is installed on the side wall of the insulating cylinder 102;

[0046] See also Figure 1-2 A detachable protection mechanism 3 is provided on the vacuum circuit breaker 1 to provide protection for the outdoor boundary high-voltage AC vacuum circuit breaker 1. The detachable protection mechanism 3 is composed of a fixing component 5, a protection component 6 and a locking component 7. The details are as follows:

[0047] Please refer to Figure 6-7The fixing component 5 is fixed on the base 101, and is used to support and fix the detachable protective mechanism 3. Specifically, the fixing component 5 includes an L-shaped tube 501 and a fixing tube 502. The L-shaped tube 501 is fixedly connected to the outer wall of one side of the base 101, and the fixing tube 502 is fixedly connected to the top of the base 101. The outer walls on both sides of the L-shaped tube 501 and the fixing tube 502 are symmetrically fixedly connected with fixing plates 503, and a positioning hole is opened on the outer wall of one side of each fixing plate 503.

[0048] In the embodiment, the upper end surfaces of the L-shaped tube 501 and the fixed tube 502 are flush, and the protective component 6 is conveniently supported by the L-shaped tube 501 and the fixed tube 502. The fixing plate 503 and the positioning holes on its surface facilitate the installation and fixation of the fixed component 5, and the removal of the protective component 6 is also convenient.

[0049] See also Figure 3-5 The protection component 6 is arranged on the fixed component 5, and is used to protect the outdoor boundary high-voltage AC vacuum circuit breaker 1. Specifically: the protection component 6 includes an annular seat 601, which is fixedly connected to the inner wall of the fixed tube 502. A plurality of limiting holes are opened on the top of the annular seat 601, and a limiting rod 602 is movably embedded in each limiting hole. A main protection plate 603 is fixedly connected between the tops of the plurality of limiting rods 602. The outer walls on both sides of the main protection plate 603 are rotatably connected to auxiliary protection plates 604, and the outer wall on one side of each auxiliary protection plate 604 is fixedly connected to two protection half-tubes 605.

[0050] In this embodiment, the annular seat 601 is fixedly installed on the inner wall of the fixed tube 502, and the height of the annular seat 601 is higher than the height of the fixed tube 502. Therefore, the annular seat 601 is used to conveniently improve the accuracy of placing the main protective plate 603 above the fixed tube 502, and at the same time, it can be temporarily limited to facilitate subsequent installation work. The limiting rod 602 on the main protective plate 603 and the limiting hole on the annular seat 601 correspond one by one, which further improves the installation stability and accuracy of the main protective plate 603. The main protective plate 603 and the auxiliary protective plates 604 on both sides are combined to facilitate the protection of the insulating tube 102 in the vacuum circuit breaker 1, and the insulating tube 2 103 is conveniently protected through the protective half tube 605, thereby improving the use effect of the protective component 6.

[0051] See also Figure 3 and Figure 8The locking assembly 7 is arranged on the protection assembly 6, and is used to lock the protection assembly 6. Specifically, the locking assembly 7 includes a support plate 701. There are multiple support plates 701 and they are divided into two groups. The two groups of multiple support plates 701 are respectively and equidistantly fixedly connected to the outer wall of the L-shaped tube 501 and the outer wall of the fixed tube 502. A locking ring 702 is placed between the tops of each group of multiple support plates 701, and the inner diameters of the two locking rings 702 are respectively adapted to the L-shaped tube 501 and the fixed tube 502. The outer surface of each locking ring 702 is equidistantly threaded with multiple locking bolts 703, and one end of each locking bolt 703 is fixedly connected to an anti-slip contact 704.

[0052] In this embodiment, the support plate 701 is used to facilitate the placement of the locking ring 702 to prevent it from falling onto the base 101 and affecting the ease of use of the locking ring 702. The two locking rings 702 correspond to the L-shaped tube 501 and the fixed tube 502 respectively, which facilitates the sliding of the locking ring 702 on the surface of the L-shaped tube 501 and the fixed tube 502. One of the locking rings 702 slides upward to facilitate locking the combination of two corresponding protective half-tubes 605, and the other locking ring 702 slides upward to facilitate locking the combination of the main protective plate 603 and the two auxiliary protective plates 604. The locking ring 702 is conveniently positioned by the locking bolt 703, and the anti-slip contact 704 on the locking bolt 703 is convenient for abutting against the corresponding main protective plate 603, auxiliary protective plate 604 and protective half-tube 605, thereby improving the use effect of the locking assembly 7.

[0053] See also Figure 3 , Figure 6 and Figure 8 , an annular baffle 504 is fixedly connected to the inner wall of the L-shaped tube 501 near the top;

[0054] A protective cover 607 is fixedly connected to the top of the main protective plate 603, and a handle 8 is fixedly connected to the outer wall of one side of the main protective plate 603, wherein one end of the two protective half pipes 605 is fixedly connected to an extension plate 606, and the two extension plates 606 are adapted;

[0055] A connecting rod 705 is fixedly connected between the outer walls of one side of the two locking rings 702 .

[0056] In this embodiment, the annular baffle 504 is used to facilitate the limiting of the combined protective half-tube 605, so as to prevent the protective half-tube 605 from moving too deeply in angle when rotating with the auxiliary protective plate 604, thereby affecting the protective effect of the protective assembly 6. The protective cover 607 is used to facilitate the protection of the top of the vacuum circuit breaker 1, thereby improving the protective effect of the detachable protective mechanism 3. The combination of two extension plates 606 can protect the upper part of the knife 104 on the vacuum circuit breaker 1. At the same time, the lower part of the extension plate 606 is opened to facilitate the contact between the contact end and the knife 104. The connecting rod 705 improves the stability of the two locking rings 702.

[0057] See also Figure 2-3 A heat dissipation mechanism 4 is provided on the detachable protective mechanism 3 to dissipate heat for the vacuum circuit breaker 1. Specifically, the heat dissipation mechanism 4 includes an air guide plate 401. There are a plurality of air guide plates 401. Each air guide plate 401 is fixedly connected to an inner wall on one side of the main protective plate 603. A plurality of air outlets are provided on an outer wall on one side of each air guide plate 401. The angles of the air outlets are different. An air guide duct 402 is connected to the outer walls of one side of every two air guide plates 401.

[0058] In this embodiment, the air guide duct 402 facilitates the introduction of wind into the interior of the air guide plate 401, and sprays it out through the air outlets on the air guide plate 401, so as to facilitate the heat dissipation of the vacuum circuit breaker 1 inside the protective component 6, thereby improving the safety of the use of the vacuum circuit breaker 1. The angles of the air outlets on the air guide plate 401 are all different, so that the air guide plate 401 can cool the vacuum circuit breaker 1 from various angles, thereby further improving the use effect of the heat dissipation mechanism 4.

[0059] See also Figure 2-3 The outer wall of one side of the main protective plate 603 is fixedly connected to the micro air pump 403, and the air outlet of the micro air pump 403 is connected to the air connector 404, and the air connector 404 is connected to one of the air guide pipes 402 through a pipeline.

[0060] In this embodiment, the micro air pump 403 and the air connector 404 are both existing technologies and are not described here. The micro air pump 403 is used to pressurize the external air and then transfer it through the air connector 404, and then it is introduced into the air guide duct 402 through the pipeline, and then enters the air guide plate 401, which facilitates the use of the heat dissipation mechanism 4.

[0061] See also Figure 3-4 A windshield plate 9 is fixedly connected to the outer wall of one side of each extension plate 606 , and a sealing gasket 10 is fixedly connected to the outer wall of one side of each extension plate 606 .

[0062] In this embodiment, the wind blown out by the two protective half-tubes 605 can be conveniently guided by the wind shield plate 9, so that the wind can dissipate heat to the gate blade 104 from top to bottom, and at the same time, the dust on the gate blade 104 and other parts can be cleaned. The sealing gasket 10 can improve the connection sealing effect of the two extension plates 606, thereby preventing rain and dust from falling onto the gate blade 104, further improving the use effect of the protective component 6.

[0063] A method for using an outdoor boundary high-voltage AC vacuum circuit breaker protection structure comprises the following steps:

[0064] Step 1: Fixing: Use screws, fixing sheet 503 and positioning holes on its surface to fix L-shaped tube 501 and fixing tube 502 on base 101, and the connecting wire of vacuum circuit breaker extends from the bottom of fixing tube 502;

[0065] Step 2, protection: insert the limiting rod 602 on the main protection plate 603 into the limiting hole on the annular seat 601 to fix the main protection plate 603, rotate the two auxiliary protection plates 604 and the protection half pipe 605 to protect the insulating cylinder 1 102, the insulating cylinder 2 103 and the switch 104 in the vacuum circuit breaker 1, push the locking ring 702 on the support plate 701 upward, and when the locking ring 702 moves to the outer wall of the main protection plate 603, the auxiliary protection plate 604 and the protection half pipe 605, screw the locking bolt 703 to fix the locking ring 702;

[0066] Step 3, heat dissipation: start the micro air pump 403, pressurize the external air, transfer it through the air connector 404, and introduce it into the air guide pipe 402 through the pipeline, and then enter the interior of each air guide plate 401 through the air guide pipe 402, and spray it out through the air outlet on the air guide plate 401 to dissipate heat for the vacuum circuit breaker 1;

[0067] Step 4, loosen the locking bolt 703 so that the anti-slip contact 704 on the locking bolt 703 is detached from the corresponding main protective plate 603, the auxiliary protective plate 604 and the protective half pipe 605, pull the locking ring 702 down to the support plate 701, rotate and open the auxiliary protective plate 604 and the protective half pipe 605, use the handle 8 to pull up the main protective plate 603 to complete the disassembly.

[0068] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An outdoor boundary high voltage AC vacuum circuit breaker protection structure, characterized in that: include: A vacuum circuit breaker (1), the vacuum circuit breaker (1) comprising a base (101), an insulating cylinder 1 (102), an insulating cylinder 2 (103) and a knife switch (104), the insulating cylinder 1 (102) and the insulating cylinder 2 (103) being both mounted on the base (101), and the knife switch (104) being mounted on a side wall of the insulating cylinder 1 (102); A detachable protection mechanism (3) is arranged on the vacuum circuit breaker (1) and is used to protect the outdoor boundary high-voltage AC vacuum circuit breaker (1); and The heat dissipation mechanism (4) is arranged on the detachable protection mechanism (3) and is used to dissipate heat from the vacuum circuit breaker (1).

2. The outdoor boundary high voltage AC vacuum circuit breaker protection structure according to claim 1 is characterized in that: The detachable protective mechanism (3) comprises: A fixing assembly (5) fixedly mounted on the base (101) and used to support and fix the detachable protection mechanism (3); A protection component (6) is arranged on the fixing component (5) and is used to protect the outdoor boundary high-voltage AC vacuum circuit breaker (1); and The locking component (7) is arranged on the protection component (6) and is used to lock the protection component (6).

3. The outdoor boundary high voltage AC vacuum circuit breaker protection structure according to claim 2 is characterized in that: The fixing assembly (5) comprises an L-shaped tube (501) and a fixing tube (502), wherein the L-shaped tube (501) is fixedly connected to an outer wall of one side of the base (101), and the fixing tube (502) is fixedly connected to the top of the base (101), and fixing plates (503) are symmetrically fixedly connected to the outer walls of both sides of the L-shaped tube (501) and the fixing tube (502), and a positioning hole is provided on the outer wall of one side of each fixing plate (503); The protection component (6) comprises an annular seat (601), the annular seat (601) is fixedly connected to the inner wall of the fixed tube (502), a plurality of limiting holes are opened on the top of the annular seat (601), a limiting rod (602) is movably embedded in each of the limiting holes, a main protection plate (603) is fixedly connected between the tops of the plurality of limiting rods (602), both sides of the outer wall of the main protection plate (603) are rotatably connected to the auxiliary protection plates (604), and one side of the outer wall of each auxiliary protection plate (604) is fixedly connected to two protection half-tubes (605); The locking assembly (7) comprises a support plate (701), wherein a plurality of the support plates (701) are provided and divided into two groups, wherein the two groups of the plurality of support plates (701) are respectively and equidistantly fixedly connected to the outer wall of the L-shaped tube (501) and the outer wall of the fixed tube (502), a locking ring (702) is placed between the tops of each group of the plurality of support plates (701), and the inner diameters of the two locking rings (702) are respectively adapted to the L-shaped tube (501) and the fixed tube (502), and the outer surface of each locking ring (702) is equidistantly threadedly connected to a plurality of locking bolts (703), and one end of each locking bolt (703) is fixedly connected to an anti-slip contact (704).

4. The outdoor boundary high voltage AC vacuum circuit breaker protection structure according to claim 3 is characterized in that: An annular baffle (504) is fixedly connected to the inner wall of the L-shaped tube (501) near the top end; A protective cover (607) is fixedly connected to the top of the main protective plate (603), wherein one end of each of the two protective half pipes (605) is fixedly connected to an extension plate (606), and the two extension plates (606) are adapted to each other; A connecting rod (705) is fixedly connected between the outer walls of one side of the two locking rings (702).

5. The outdoor boundary high voltage AC vacuum circuit breaker protection structure according to claim 1 is characterized in that: The heat dissipation mechanism (4) comprises an air guide plate (401), wherein a plurality of the air guide plates (401) are provided, each of the air guide plates (401) being fixedly connected to an inner wall of one side of the main protective plate (603), a plurality of air outlets being provided on an outer wall of one side of each of the air guide plates (401), and each of the air outlets having a different angle, and an air guide duct (402) being connected between the outer walls of one side of each two of the air guide plates (401).

6. The outdoor boundary high voltage AC vacuum circuit breaker protection structure according to claim 5, characterized in that: An outer wall on one side of the main protective plate (603) is fixedly connected to a micro air pump (403); an air outlet of the micro air pump (403) is connected to an air connection seat (404); and the air connection seat (404) is connected to one of the air guide pipes (402) via a pipeline.

7. The outdoor boundary high voltage AC vacuum circuit breaker protection structure according to claim 4, characterized in that: A handle (8) is fixedly connected to an outer wall of one side of the main protective plate (603).

8. The outdoor boundary high voltage AC vacuum circuit breaker protection structure according to claim 7, characterized in that: A windshield plate (9) is fixedly connected to an outer wall on one side of each extension plate (606).

9. The outdoor boundary high voltage AC vacuum circuit breaker protection structure according to claim 8, characterized in that: A sealing gasket (10) is fixedly connected to the outer wall of one side of each extension plate (606).

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