Electric power engineering protection device with alarm function

Abstract

The invention discloses an electric power engineering protection device with an alarm function, and relates to the technical field of power distribution cabinets, the electric power engineering protection device comprises a cabinet body, the front side of the cabinet body is provided with a cabinet door, the inner side of the cabinet body is fixedly connected with a smoke alarm, a temperature sensor and a conveying pipe, and the left side and the right side of the cabinet body are both provided with ventilation openings. A locking unit is arranged on the outer side of the cabinet body and comprises a first side block, the first side block is fixedly connected to the left side and the right side of the cabinet body, a rotating rod is rotationally connected to the outer side of the first side block, a rotating block is fixedly connected to the outer side of the rotating rod, and a shielding plate is fixedly connected to the side, close to the cabinet body, of the rotating block. According to the electric power engineering protection device with the alarm function, when a fire breaks out in the cabinet body, the electric push rod drives the lifting block to be linked with the rotating rod, the shielding plate is turned over to shield the ventilation opening, meanwhile, the gear and toothed plate transmission structure drives the limiting block to lock the cabinet door, and it is avoided that harmful gas leaks when the cabinet door is opened, and the physical and psychological health of workers is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, in particular to a power engineering protection device with an alarm function. Background Art

[0002] Distribution cabinets are key equipment used to distribute, control and protect circuits in power systems and are widely used in industrial, commercial, residential and other places.

[0003] After searching, the Chinese patent with application number "CN202323406334.2" is specifically a low-voltage distribution cabinet with a safety alarm function, including a body, door panels, ventilators, power equipment, and alarms. Through the setting of the power equipment and ventilators, when an electrical fire occurs in the body and is sensed by the fire sensor, the motor will start and drive the output shaft to rotate. A connecting rope is fixed on the output shaft, and a wind block plate is fixed to the other end of the connecting rope. At this time, the wind block plate rises and closes the ventilator, preventing oxygen from entering the body and preventing the flame from encountering oxygen and burning.

[0004] In the above patent, when a fire occurs inside the distribution cabinet, the device will automatically drive the baffles on both sides to block the ventilation holes, blocking the oxygen supply to prevent the fire from worsening. In the event of a fire, the electrical equipment in the cabinet will burn and produce harmful gases. For example, the chlorine-containing materials in the cabinet (such as PVC cables) will burn and produce hydrogen chloride (HCl). This gas is highly corrosive and irritating to the respiratory tract. If the cabinet door is opened by an unknowing staff member during the fire-fighting process, the fire that has not been completely extinguished may reignite and harmful gases may leak, causing the staff to inhale harmful gases such as hydrogen chloride, which may lead to safety hazards such as respiratory burns and poisoning. Summary of the Invention

[0005] In response to the deficiencies of the prior art, the present invention provides a power engineering protection device with an alarm function, which solves the problem that when a fire occurs, the cabinet door is opened by an uninformed staff member while the fire is being extinguished inside the cabinet, causing harmful gas to leak, posing a safety hazard.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A power engineering protection device with an alarm function comprises a cabinet body, a cabinet door is provided on the front side of the cabinet body, a smoke alarm, a temperature sensor and a delivery pipe are fixedly connected to the inner side of the cabinet body, ventilation holes are provided on the left and right sides of the cabinet body, a locking unit is provided on the outer side of the cabinet body, the locking unit comprises a side block 1, the side block 1 is fixedly connected to the left and right sides of the cabinet body, the outer side of the side block 1 is rotatably connected to a rotating rod, the outer side of the rotating rod is fixedly connected to a rotating block, the side of the rotating block close to the cabinet body is fixedly connected to a baffle, limiting components are provided on the left and right sides of the cabinet body, the limiting components limit the cabinet door, the lower end of the delivery pipe is fixedly connected to a fixed pipe, and the lower side of the fixed pipe is fixedly connected to a plurality of spray heads.

[0007] Preferably, the limit assembly includes a fixed block, which is fixedly connected to the left and right sides of the cabinet, and the outer sides of the fixed blocks on the left and right sides are rotatably connected to control rods, the outer sides of the control rods are fixedly connected to the limit block, and the outer ends of the control rods are fixedly connected to gears, and the left and right sides of the cabinet are fixedly connected to guide plates 1, and the outer sides of the guide plates 1 are slidably connected to guide blocks 1, and the outer sides of the guide blocks 1 are fixedly connected to tooth plates meshing with gears.

[0008] Preferably, the rear ends of the rotating rods on the left and right sides are fixedly connected to a turntable, the outer side of the turntable is fixedly connected to a control block, the rear sides of the two control blocks are rotatably connected to a control plate, the outer side of the control plate is rotatably connected to a connecting block 1, the lower side of the connecting block 1 is fixedly connected to a lifting plate, the rear side of the cabinet is fixedly connected to a rear plate and a mounting block, a lifting slot is provided on the rear side of the rear plate, a lifting block is slidably connected to the inner side of the lifting slot, the lifting block is fixedly connected to the lifting plate, and an electric push rod is fixedly connected between the mounting block and the lifting block.

[0009] Preferably, the rear side of the guide block 1 is fixedly connected to a connecting plate, the rear side of the connecting plate is fixedly connected to a movable plate 2, the rear side of the movable plate 2 is fixedly connected to the movable plate 1, the upper side of the movable plate 1 is fixedly connected to the connecting block 2, the outer side of the connecting block 2 is rotatably connected to the inclined plate 1, the lower side of the lifting block is fixedly connected to the bottom block, and the bottom block is rotatably connected to the inclined plate 1.

[0010] Preferably, the plug-in assembly includes a plug-in block, which is fixedly connected to the rear side of the cabinet door, a plug-in hole is provided on the outside of the plug-in block, a plug-in rod is provided on the outside of the cabinet body, and the left end of the plug-in rod passes through the outside of the cabinet body and is fixedly connected to the side panel.

[0011] Preferably, the guide block 1 is fixedly connected to a connecting block 3 on one side close to the side panel, the left side of the cabinet and the upper and lower sides of the side panel are fixedly connected to a guide plate 2, the outer side of the guide plate 2 is slidingly connected to the guide block 2, the rear side of the guide block 2 is fixedly connected to a connecting block 4, the outer side of the connecting block 4 is rotatably connected to the inclined plate 2, the inclined plate 2 is rotatably connected to the connecting block 3, the left side of the guide block 2 is fixedly connected to the side block 2, the outer side of the side block 2 is rotatably connected to the inclined plate 3, the left side of the side panel is fixedly connected to the side block 3, and the side block 3 is rotatably connected to the inclined plate 3.

[0012] Preferably, protective cover 1 is fixedly connected to the left and right sides of the cabinet, reinforcing plates are fixedly connected to the upper and lower sides of the protective cover 1, protective cover 2 is fixedly connected to the rear side of the cabinet, the rotating rod is rotatably connected to protective cover 1, and the connecting plate is slidably connected to protective cover 1.

[0013] The present invention provides a power engineering protection device with an alarm function. Compared with the prior art, it has the following advantages: (1) This power engineering protection device with an alarm function, when a fire occurs inside the cabinet, the electric push rod drives the lifting block to link the rotating rod, so that the shielding plate flips over to block the vent, and at the same time drives the limit block to lock the cabinet door through the gear and tooth plate transmission structure to prevent the cabinet door from opening and leaking harmful gases, which will affect the physical and mental health of the staff.

[0014] (2) The power engineering protection device with alarm function is provided with a cabinet door, a plug-in block, a plug-in rod, a plug-in hole, a second guide plate, and a second guide block. When the limit block completes the first locking of the cabinet door, the plug-in rod is driven to insert into the plug-in hole to form a secondary mechanical limit. The double limit structure can resist the internal pressure impact during fire extinguishing and eliminate the safety hazards caused by the cabinet door being opened by mistake. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall three-dimensional structural diagram of the present invention; Figure 2 It is an internal three-dimensional structural diagram of the present invention; Figure 3 It is a partial three-dimensional structural diagram of the present invention; Figure 4 It is a three-dimensional structural diagram of the rear view portion of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 It is a partial three-dimensional structural diagram of the limiting component in the present invention; Figure 7 It is a three-dimensional structural diagram of the plug-in assembly in the present invention; Figure 8 for Figure 7 Enlarged view of point B in the middle; Figure 9 It is a partial three-dimensional structural diagram of the plug-in assembly in the present invention.

[0016] In the figure: 1. cabinet; 2. cabinet door; 3. protective cover 1; 4. reinforcement plate; 5. locking unit; 6. protective cover 2; 7. ventilation port; 8. smoke alarm; 9. temperature sensor; 10. delivery pipe; 11. fixed pipe; 12. sprinkler head; 51. side block 1; 52. rotating rod; 53. rotating block; 54. shielding plate; 55. limit assembly; 56. plug assembly; 551. turntable; 552. control block; 553. control board; 554. connecting block 1; 555. lifting plate; 556. rear plate; 557. lifting slot; 558. lifting block; 559. electric push rod; 5510. mounting block; 5511. Bottom block; 5512, inclined plate one; 5513, connecting block two; 5514, moving plate one; 5515, moving plate two; 5516, fixed block; 5517, control rod; 5518, limit block; 5519, gear; 5520, guide plate one; 5521, guide block one; 5522, tooth plate; 5523, connecting plate; 561, plug-in block; 562, plug-in rod; 563, side plate; 564, connecting block three; 565, inclined plate two; 566, connecting block four; 567, guide plate two; 568, guide block two; 569, side block two; 5610, inclined plate three; 5611, side block three; 5612, plug-in hole. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] The present invention provides the following technical solutions: Example 1 See also Figures 1-6, a power engineering protection device with an alarm function, including a cabinet 1, a cabinet door 2 is provided on the front side of the cabinet 1, a smoke alarm 8, a temperature sensor 9 and a delivery pipe 10 are fixedly connected to the inside of the cabinet 1, and ventilation holes 7 are opened on the left and right sides of the cabinet 1. A locking unit 5 is provided on the outside of the cabinet 1, and the locking unit 5 includes a side block 51, and the side block 51 is fixedly connected to the left and right sides of the cabinet 1. The outer side of the side block 51 is rotatably connected to a rotating rod 52, and the outer side of the rotating rod 52 is fixedly connected to a rotating block 53. The side of the rotating block 53 close to the cabinet 1 is fixedly connected to a shielding plate 54. The left and right sides of the cabinet 1 are provided with a limiting component 55, which limits the cabinet door 2. The lower end of the delivery pipe 10 is fixedly connected to A fixed pipe 11 is provided, and a plurality of sprinkler heads 12 are fixedly connected to the lower side of the fixed pipe 11. A protective cover 3 is fixedly connected to the left and right sides of the cabinet 1. A reinforcing plate 4 is fixedly connected to the upper and lower sides of the protective cover 3. A protective cover 2 6 is fixedly connected to the rear side of the cabinet 1. The rotating rod 52 is rotatably connected to the protective cover 3. The connecting plate 5523 is slidably connected to the protective cover 3. The cabinet 1 is protected by the provided protective cover 3 and protective cover 2 6. The delivery pipe 10 is connected to the external fire protection system so that the sprinkler head 12 on the fixed pipe 11 sprays carbon dioxide gas to control the internal fire. The smoke alarm 8 and the temperature sensor 9 are used for convenient alarm. A controller is provided on the outside to control the extension and retraction of the electric push rod 559.

[0019] The rear ends of the left and right rotating rods 52 are fixedly connected to a turntable 551, and the outer side of the turntable 551 is fixedly connected to a control block 552. The rear sides of the two control blocks 552 are rotatably connected to a control plate 553. The outer side of the control plate 553 is rotatably connected to a connecting block 1 554. The lower side of the connecting block 1 554 is fixedly connected to a lifting plate 555. The rear side of the cabinet 1 is fixedly connected to a rear plate 556 and a mounting block 5510. A lifting slot 557 is provided on the rear side of the rear plate 556. A lifting block 558 is slidably connected to the inner side of the lifting slot 557. The lifting block 558 is fixedly connected to the lifting plate 555. An electric push rod 559 is fixedly connected between the mounting block 5510 and the lifting block 558. When the smoke alarm 8 is activated, the electric push rod 559 drives the lifting plate 555 to descend through the controller, and the lifting plate 555 drives the control panel 553 to rotate, and the control panel 553 drives the control block 552 to rotate, and the control block 552 drives the turntable 551 to rotate. Since the two control panels 553 are symmetrically distributed, the turntables 551 on both sides rotate in opposite directions, and the turntable 551 drives the rotating rod 52 to rotate, and the rotating rod 52 drives the rotating block 53 to rotate, and the rotating block 53 drives the shielding plate 54 to rotate toward the cabinet 1. Since the rotating block 53 is an L-shaped structure, the shielding plate 54 is in contact with the cabinet 1, which is convenient for blocking the vents 7 on both sides, reducing the amount of oxygen entering the cabinet 1, and facilitating fire extinguishing.

[0020] The limiting assembly 55 includes a fixed block 5516, which is fixedly connected to the left and right sides of the cabinet 1. The outer sides of the fixed blocks 5516 on the left and right sides are rotatably connected to the control rod 5517. The outer side of the control rod 5517 is fixedly connected to the limiting block 5518. The outer end of the control rod 5517 is fixedly connected to the gear 5519. The left and right sides of the cabinet 1 are fixedly connected to the guide plate 1 5520. The outer side of the guide plate 1 5520 is slidably connected to the guide block 1 5521. The guide block 1 5521 is slidably connected to the guide block 1 1 is fixedly connected to a tooth plate 5522 meshing with a gear 5519 on the outside, a connecting plate 5523 is fixedly connected to the rear side of the guide block 1 5521, a movable plate 2 5515 is fixedly connected to the rear side of the connecting plate 5523, a movable plate 1 5514 is fixedly connected to the rear side of the movable plate 2 5515, a connecting block 2 5513 is fixedly connected to the upper side of the movable plate 1 5514, a slanted plate 1 5512 is rotatably connected to the outer side of the connecting block 2 5513, and a lower side of the lifting block 558 is fixedly connected to the lower side of the lifting block 558. There is a bottom block 5511, which is rotatably connected to the inclined plate 1 5512. When the shielding plate 54 blocks the vent 7, the lifting plate 555 drives the lifting block 558 to descend, the lifting block 558 drives the inclined plate 1 5512 to rotate, the inclined plate 1 5512 drives the movable plate 1 5514 to move backward, the movable plate 1 5514 drives the movable plate 2 5515 to move, the movable plate 2 5515 drives the connecting plate 5523 to move backward, the connecting plate 5523 drives the guide block 1 5521 to move backward, and the guide block 5521 drives the tooth plate 5522 to move, the tooth plate 5522 drives the gear 5519 to rotate, the gear 5519 drives the control rod 5517 to rotate, and the control rod 5517 drives the limit block 5518 to rotate, so that the limit block 5518 rotates toward the cabinet door 2. Since the limit block 5518 is an L-shaped structure, it is convenient for the limit block 5518 to limit the cabinet door 2. Since the tooth plates 5522 on both sides are distributed in this manner, it is convenient for the limit blocks 5518 on the left and right sides to limit the cabinet door 2.

[0021] Example 2 Based on the first embodiment, Figure 7-Figure 9As shown, a power engineering protection device with an alarm function includes a cabinet 1, a cabinet door 2 is provided on the front side of the cabinet 1, a smoke alarm 8, a temperature sensor 9 and a delivery pipe 10 are fixedly connected to the inside of the cabinet 1, and ventilation holes 7 are provided on the left and right sides of the cabinet 1. A locking unit 5 is provided on the outside of the cabinet 1, and the locking unit 5 includes a side block 51, and the side block 51 is fixedly connected to the left and right sides of the cabinet 1. The outer side of the side block 51 is rotatably connected to a rotating rod 52, and the outer side of the rotating rod 52 is fixedly connected to a rotating block 53. The side of the rotating block 53 close to the cabinet 1 is fixedly connected to a shielding plate 54. The left and right sides of the cabinet 1 are provided with a limiting component 55, and the limiting component 55 limits the cabinet door 2. The lower end of the delivery pipe 10 is fixedly connected There is a fixed pipe 11, and a plurality of sprinkler heads 12 are fixedly connected to the lower side of the fixed pipe 11. A protective cover 3 is fixedly connected to the left and right sides of the cabinet 1, and a reinforcement plate 4 is fixedly connected to the upper and lower sides of the protective cover 3. A protective cover 2 6 is fixedly connected to the back side of the cabinet 1. The rotating rod 52 is rotatably connected to the protective cover 1 3, and the connecting plate 5523 is slidably connected to the protective cover 1 3. The cabinet 1 is protected by the protective cover 1 3 and the protective cover 2 6. The delivery pipe 10 is connected to the external fire protection system so that the sprinkler head 12 on the fixed pipe 11 sprays carbon dioxide gas to control the internal fire. The smoke alarm 8 and the temperature sensor 9 are used for convenient alarm. A controller is provided on the outside to control the extension and retraction of the electric push rod 559.

[0022] The plug-in assembly 56 includes a plug-in block 561, which is fixedly connected to the rear side of the cabinet door 2. A plug-in hole 5612 is provided on the outer side of the plug-in block 561, and a plug-in rod 562 is provided on the outer side of the cabinet body 1. The left end of the plug-in rod 562 passes through the outer side of the cabinet body 1 and is fixedly connected to the side plate 563. The guide block 1 5521 is fixedly connected to the side of the side plate 563 near the side plate 564. The left side of the cabinet body 1 and the upper and lower sides of the side plate 563 are fixedly connected to the guide plate 2 567. The outer side of the guide plate 2 567 is slidably connected to the guide block 2 568. The rear side of the guide block 2 568 is fixedly connected to the connecting block 4 566. The outer side of the connecting block 4 566 is rotatably connected to the inclined plate 2 565. The inclined plate 2 565 is rotatably connected to the connecting block 3 564. The left side of the guide block 2 568 is fixedly connected to the side block 2 569. The outer side of the side block 2 569 is rotatably connected to the inclined plate 3 56 10. The left side of the side panel 563 is fixedly connected with the side block three 5611, and the side block three 5611 is rotatably connected to the inclined plate three 5610. When the limit block 5518 limits the cabinet door 2, the guide block one 5521 moves backward, and the guide block one 5521 drives the inclined plate two 565 to rotate. The inclined plates two 565 on the upper and lower sides are symmetrically arranged, so that the inclined plate two 565 drives the guide block two 568 to move toward the guide plate one 5520. The guide block two 568 drives the inclined plate three 5610 to rotate, and the inclined plate three 5610 drives the side panel 563 to move right. The side panel 563 drives the connecting rod 562 to move, so that the connecting rod 562 is connected to the connecting block 561 through the connecting hole 5612, which is convenient for limiting the cabinet door 2 again, increasing the stability of the cabinet door 2, and preventing the staff from accidentally opening the cabinet door 2. After the fire is completely controlled and the harmful gas is diluted (after waiting for a period of time), the cabinet door 2 is controlled to be unlocked.

[0023] Working principle: When a fire occurs in the cabinet 1, the smoke alarm 8 is sounded, and the fire is controlled by the sprinkler head 12. The controller controls the electric push rod 559 to drive the lifting plate 555 to descend, and the lifting plate 555 drives the control panel 553 to rotate. The control panel 553 drives the turntable 551 on the control block 552 to rotate, and the turntable 551 drives the rotating rod 52 to rotate, so as to control the shielding plate 54 on the rotating block 53 to rotate, so that the shielding plates 54 on both sides block the vents 7 to avoid aggravating the fire. At the same time, the lifting plate 555 drives the lifting block 558 to descend, and under the action of the inclined plate 1 5512, the movable plate 1 5514 is controlled to move backward, and the movable plate 1 5514 is controlled to move backward. It drives the movable plate 2 5515 to move backward, and under the action of the connecting plate 5523 and the guide block 1 5521, the tooth plate 5522 is controlled to move backward, and the tooth plate 5522 drives the gear 5519 to rotate, and the gear 5519 drives the control rod 5517 to rotate, so as to facilitate the rotation of the limit blocks 5518 on the left and right sides, so that the limit blocks 5518 on both sides limit the cabinet door 2. At the same time, the guide block 1 5521 drives the inclined plate 2 565 to rotate, and under the action of the guide block 2 568 and the inclined plate 3 5610, the side plate 563 is controlled to move right, and the side plate 563 drives the plug rod 562 to connect with the plug block 561, so as to facilitate the limiting of the cabinet door 2 again, increase the stability of the cabinet door 2, and prevent the cabinet door 2 from opening by mistake.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A power engineering protection device with an alarm function, comprising a cabinet (1), characterized in that: The cabinet (1) is provided with a cabinet door (2) on the front side, a smoke alarm (8), a temperature sensor (9) and a delivery pipe (10) are fixedly connected to the inner side of the cabinet (1), a ventilation opening (7) is provided on the left and right sides of the cabinet (1), and a locking unit (5) is provided on the outer side of the cabinet (1), the locking unit (5) comprising a side block (51), the side block (51) being fixedly connected to the left and right sides of the cabinet (1), and the outer side of the side block (51) being rotated A rotating rod (52) is movably connected to the rotating rod (52), a rotating block (53) is fixedly connected to the outer side of the rotating rod (52), a shielding plate (54) is fixedly connected to the side of the rotating block (53) close to the cabinet (1), and a limiting component (55) is provided on the left and right sides of the cabinet (1), and the limiting component (55) limits the cabinet door (2). The lower end of the delivery pipe (10) is fixedly connected to a fixed pipe (11), and the lower side of the fixed pipe (11) is fixedly connected to a plurality of spray heads (12).

2. The power engineering protection device with an alarm function according to claim 1, characterized in that: The limiting assembly (55) includes a fixed block (5516), the fixed block (5516) is fixedly connected to the left and right sides of the cabinet (1), the outer sides of the fixed blocks (5516) on the left and right sides are rotatably connected to the control rod (5517), the outer side of the control rod (5517) is fixedly connected to the limiting block (5518), the outer end of the control rod (5517) is fixedly connected to the gear (5519), the left and right sides of the cabinet (1) are fixedly connected to the guide plate 1 (5520), the outer side of the guide plate 1 (5520) is slidably connected to the guide block 1 (5521), and the outer side of the guide block 1 (5521) is fixedly connected to the toothed plate (5522) meshing with the gear (5519).

3. The power engineering protection device with an alarm function according to claim 2, characterized in that: The rear ends of the rotating rods (52) on the left and right sides are fixedly connected to a rotating disk (551), the outer side of the rotating disk (551) is fixedly connected to a control block (552), the rear sides of the two control blocks (552) are rotatably connected to a control board (553), the outer side of the control board (553) is rotatably connected to a connecting block 1 (554), the lower side of the connecting block 1 (554) is fixedly connected to a lifting plate (555), the rear side of the cabinet (1) is fixedly connected to a rear plate (556) and a mounting block (5510), a lifting slot (557) is provided on the rear side of the rear plate (556), the inner side of the lifting slot (557) is slidably connected to a lifting block (558), the lifting block (558) is fixedly connected to the lifting plate (555), and an electric push rod (559) is fixedly connected between the mounting block (5510) and the lifting block (558).

4. The power engineering protection device with an alarm function according to claim 3, characterized in that: The rear side of the guide block 1 (5521) is fixedly connected to a connecting plate (5523), the rear side of the connecting plate (5523) is fixedly connected to a movable plate 2 (5515), the rear side of the movable plate 2 (5515) is fixedly connected to a movable plate 1 (5514), the upper side of the movable plate 1 (5514) is fixedly connected to a connecting block 2 (5513), the outer side of the connecting block 2 (5513) is rotatably connected to an inclined plate 1 (5512), the lower side of the lifting block (558) is fixedly connected to a bottom block (5511), and the bottom block (5511) is rotatably connected to the inclined plate 1 (5512).

5. The power engineering protection device with alarm function according to claim 4, characterized in that: The plug-in assembly (56) comprises a plug-in block (561), the plug-in block (561) being fixedly connected to the rear side of the cabinet door (2), a plug-in hole (5612) being provided on the outside of the plug-in block (561), a plug-in rod (562) being provided on the outside of the cabinet body (1), the left end of the plug-in rod (562) passing through the outside of the cabinet body (1) and being fixedly connected to a side plate (563).

6. The power engineering protection device with alarm function according to claim 5, characterized in that: The guide block 1 (5521) is fixedly connected to the side of the side panel (563) with the connecting block 3 (564), and the left side of the cabinet (1) and the upper and lower sides of the side panel (563) are fixedly connected with the guide plate 2 (567), the outer side of the guide plate 2 (567) is slidably connected to the guide block 2 (568), the rear side of the guide block 2 (568) is fixedly connected to the connecting block 4 (566), the outer side of the connecting block 4 (566) is rotatably connected to the inclined plate 2 (565), the inclined plate 2 (565) is rotatably connected to the connecting block 3 (564), the left side of the guide block 2 (568) is fixedly connected to the side block 2 (569), the outer side of the side block 2 (569) is rotatably connected to the inclined plate 3 (5610), the left side of the side panel (563) is fixedly connected to the side block 3 (5611), and the side block 3 (5611) is rotatably connected to the inclined plate 3 (5610).

7. The power engineering protection device with alarm function according to claim 6, characterized in that: The left and right sides of the cabinet (1) are fixedly connected to a protective cover 1 (3), the upper and lower sides of the protective cover 1 (3) are fixedly connected to a reinforcement plate (4), the rear side of the cabinet (1) is fixedly connected to a protective cover 2 (6), the rotating rod (52) is rotatably connected to the protective cover 1 (3), and the connecting plate (5523) is slidably connected to the protective cover 1 (3).

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