Electro-mechanical power-off protection equipment

Abstract

The invention relates to the technical field of electrical and electromechanical, and discloses an electrical and electromechanical power-off protection device which comprises a shell, a moving groove is formed in the side face of the shell in a penetrating mode, a telescopic groove is formed in the bottom of the moving groove and extends to one side edge of the shell, and an electrical machine body is arranged in the shell. A control mechanism used for controlling equipment is arranged on the upper surface of the shell, a telescopic mechanism used for moving the electrical machine main body is arranged in a telescopic groove, and when the electrical machine main body needs to be protected, a lifting plate is pressed downwards, so that the electrical machine main body is protected; the lifting plate moves downwards in the lifting groove and enters the moving groove, a motor drives a power rod to rotate, under the action of a second bevel gear set, rotation of a rotating rod is achieved, under the action of a clamping rod and a clamping groove, the fan body rotates, and the purpose of air circulation is achieved, and heat generated in the follow-up operation process of the electrical machine body can be dissipated in time.

Description

Technical Field

[0001] The present invention relates to the field of electrical and mechanical technology, and more specifically to a power-off protection device for electrical and mechanical equipment. Background Art

[0002] With the continuous advancement of science and technology, electrical machinery and equipment are widely used in different fields. In order to protect the safety of electrical machinery and equipment operation, it is necessary to perform power-off protection operations on the electrical machinery and equipment. The whole process requires the use of electrical machinery and equipment power-off protection equipment. Electrical machinery and equipment power-off protection equipment is a device that automatically protects electrical machinery and equipment when the electrical machinery and equipment is running. The electrical machinery and equipment power-off protection equipment is mainly composed of a housing component, a connection component, a power component and a protection component. The electrical machinery and equipment power-off protection equipment has the advantages of fast protection speed and good protection effect.

[0003] Common electrical and mechanical power-off protection devices generally have the following defects during use: First, during the use of common electrical and mechanical power-off protection devices, a large amount of heat will be generated during the operation of the electrical and mechanical devices. Common electrical and mechanical power-off protection devices only protect the electrical and mechanical devices, but fail to discharge the heat generated by the operation of the electrical and mechanical devices in time, which may easily cause damage to the electrical and mechanical devices, thus failing to achieve the purpose of power-off protection for the electrical and mechanical devices. Second, during the use of common electrical and mechanical power-off protection devices, since electrical and mechanical devices are precision instruments, common electrical and mechanical power-off protection devices automatically cut off the power to the electrical and mechanical devices when a fault occurs. The entire process is directly exposed to the outside air, and the electrical and mechanical devices are easily affected by moisture and dust, which is not conducive to the operation of the electrical and mechanical devices. Third: When common electrical and mechanical power-off protection devices are used, when an electrical and mechanical failure occurs, the electrical and mechanical power is directly cut off. Without protection, the electrical and mechanical equipment will still be affected by other substances, causing greater damage to the electrical and mechanical equipment. This is not conducive to the operation of the electrical and mechanical equipment; To sum up: the common electrical and mechanical power-off protection devices have the defects of not discharging the heat generated by the operation of the electrical and mechanical equipment in time during use, which can easily cause damage to the electrical and mechanical equipment. The whole process is directly exposed to the outside air. The electrical and mechanical equipment is easily affected by moisture and dust, which is not conducive to the operation of the electrical and mechanical equipment. There is no protection for the electrical and mechanical equipment. The electrical and mechanical equipment will still be affected by other substances, causing greater damage to the electrical and mechanical equipment. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the implementation regulations of the present invention provide a power-off protection device for electrical machinery to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an electrical and mechanical power-off protection device, comprising a housing, a movable groove is formed through the side of the housing, a telescopic groove is formed at the bottom of the movable groove, the telescopic groove extends to one side of the housing, an electrical machine body is arranged inside the housing, a control mechanism for controlling the device is arranged on the upper surface of the housing, a telescopic mechanism for moving the electrical machine body is arranged inside the telescopic groove, and a protection mechanism for power-off protection of the electrical machine body is arranged inside the housing; The control mechanism includes a support platform fixedly connected to the side of the shell, a motor is fixedly connected to the upper surface of the support platform, a lifting groove connected to the movable groove is provided on the upper surface of the shell, a lifting plate is slidably connected to the inside of the lifting groove, a storage groove is provided on the upper surface of the lifting plate, a plurality of ventilation grooves connected to the storage groove are provided on the left and right side walls of the lifting plate, a fan body is installed inside the storage groove, one end of the fan body extends to the outside of the lifting plate and is fixedly connected to a clamping rod, a lifting block is slidably connected to the side wall of the movable groove, a transmission rod is rotatably connected to the side wall of the lifting block, a clamping groove is provided on the upper surface of the transmission rod, a support plate is fixedly connected to the inside of the movable groove, a rotating rod is rotatably connected to the side wall of the support plate, the upper end of the rotating rod and the other end of the transmission rod are both sleeved with a first bevel gear set, a power rod is rotatably connected to the side wall of the telescopic groove, one end of the power rod passes through the movable groove and is fixedly connected to the end of the output shaft of the motor, and the other end of the power rod and the lower end of the rotating rod are both sleeved with a second bevel gear set.

[0006] In a preferred embodiment, the width of the electric machine body is equal to the width of the moving slot, and the interior of the housing is arranged in a step-like structure.

[0007] In a preferred embodiment, a sensor is provided at the bottom of the movable groove, the output end of the sensor is electrically connected to the input end of the motor, the clamping rod is provided in a rectangular structure, and the fan body is composed of a rotating shaft and a plurality of rotating blades.

[0008] In a preferred embodiment, the telescopic mechanism includes a supporting plate slidably connected to the bottom of the telescopic groove, the electric motor body is fixedly connected to the center of the upper surface of the supporting plate, the inside of the telescopic groove is rotatably connected with a threaded rod, one end of the threaded rod passes through the supporting plate and is threadedly connected to the supporting plate, one end of the threaded rod is provided with a first limiting groove, the bottom of the telescopic groove is slidably connected with a telescopic plate, two springs are fixedly connected on the side of the telescopic plate, one end of the spring is fixedly connected to the side wall of the telescopic groove, a round rod is rotatably connected to the side wall of the telescopic plate, the end of the round rod close to the threaded rod is fixedly connected to the first limiting rod, the other end of the round rod is fixedly connected to the second limiting rod, one end of the power rod is provided with a second limiting groove, and one end of the electric motor body extends out of the supporting plate.

[0009] In a preferred embodiment, the thickness of the telescopic plate is equal to the depth of the telescopic slot, the longitudinal sections of the first limiting rod and the second limiting rod are both rectangular, the first limiting rod is adapted to the first limiting slot, the second limiting rod is adapted to the second limiting slot, and the height of the telescopic plate is greater than the width of the telescopic slot.

[0010] In a preferred embodiment, the protection mechanism includes a connecting groove opened on the upper surface of the shell, the interior of the connecting groove is slidably connected with a protection plate, conductive grooves are opened on both side walls of the shell, electromagnetic plates are fixedly installed inside the conductive grooves, and a through hole is opened through the lower side of the protection plate.

[0011] In a preferred embodiment, the output end of the electrical machine body is electrically connected to the input end of the electromagnetic plate, the protection plate is made of steel, and the size of the through hole is adapted to the size of the threaded rod.

[0012] Technical effects and advantages of the present invention: The present invention is provided with a control mechanism. When it is necessary to protect the main body of the electric machine, the lifting plate is pressed downward, the lifting plate will move down inside the lifting slot and enter the movable slot, the sensor at the lower end of the lifting plate will contact the inside of the movable slot, the sensor will send a signal to the motor, the motor will run after receiving the signal, and the locking rod will enter the slot during the downward movement of the lifting plate, and drive the lifting block to move down together, and the first bevel gear set will be engaged, the motor will drive the power rod to rotate, and under the action of the second bevel gear set, the rotating rod will rotate, and under the action of the locking rod and the locking slot, the fan body will rotate, so as to achieve the purpose of air circulation, and facilitate the timely dissipation of heat generated during the subsequent operation of the main body of the electric machine.

[0013] The present invention is provided with a telescopic mechanism, and the motor drives the power rod to rotate. Under the action of the second limiting rod and the second limiting groove, the round rod is rotated, and under the action of the first limiting rod and the first limiting groove, the threaded rod is rotated, so that the bearing plate drives the electrical machine body to enter the movable groove. Since one end of the electrical machine body extends out of the bearing plate, when the bearing plate moves to a specific position, the electrical machine body pushes the telescopic plate to move, the spring is compressed, and the first limiting rod moves out of the first limiting groove, so that the threaded rod stops moving, the bearing plate stops moving, and when the electrical machine body moves into the movable groove, the electrical machine body is protected.

[0014] The present invention is provided with a protection mechanism. Since the output end of the electric machine body is electrically connected to the input end of the electromagnetic plate, the electric machine body will supply power to the electromagnetic plate after it moves into the movable slot, and the electromagnetic plate will adsorb the protection plate. When the electric machine body is powered off, the electromagnetic plate will not adsorb the protection plate, and the protection plate will close the telescopic slot under the action of gravity, thereby realizing power-off protection for the electric machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an exploded schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the control mechanism structure of the present invention; Figure 4 for Figure 3 Schematic diagram of the card slot structure in; Figure 5 for Figure 2 Schematic diagram of the telescopic mechanism structure; Figure 6 for Figure 5 Explosion diagram of the first limiting slot structure; Figure 7 for Figure 2 Schematic diagram of the protection mechanism structure.

[0016] The accompanying drawings are marked as follows: 1. housing; 2. movable slot; 201. telescopic slot; 3. control mechanism; 301. support platform; 302. motor; 303. lifting plate; 304. storage slot; 305. ventilation slot; 306. fan body; 307. clamping rod; 308. transmission rod; 309. clamping slot; 310. lifting block; 311. rotating rod; 312. power rod; 313. first bevel gear; 314. second bevel gear; 4. telescopic mechanism; 401. bearing plate; 402. threaded rod; 403. telescopic plate; 404. spring; 405. round rod; 406. first limiting rod; 407. second limiting rod; 408. first limiting slot; 409. second limiting slot; 5. protection mechanism; 501. protection plate; 502. connecting slot; 503. conductive slot; 504. electromagnetic plate; 505. through hole; 6. electrical machine body. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The electrical and mechanical power-off protection device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0018] Reference Figure 1-2 The present invention provides an electrical and mechanical power-off protection device, comprising a shell 1, a movable groove 2 is formed through the side of the shell 1, a telescopic groove 201 is formed at the bottom of the movable groove 2, the telescopic groove 201 extends to one side of the shell 1, an electrical machine body 6 is arranged inside the shell 1, a control mechanism 3 for controlling the device is arranged on the upper surface of the shell 1, a telescopic mechanism 4 for moving the electrical machine body 6 is arranged inside the telescopic groove 201, and a protection mechanism 5 for power-off protection of the electrical machine body 6 is arranged inside the shell 1.

[0019] What needs to be particularly explained in this embodiment is that: by providing a control mechanism 3, a telescopic mechanism 4 and a protection mechanism 5, the heat generated during the subsequent operation of the electrical machine body 6 can be dissipated in time, and the electrical machine body 6 can be moved to the inside of the movable groove 2 to protect the electrical machine body 6. The protection plate 501 will close the telescopic groove 201 under the action of gravity to achieve power-off protection of the electrical machine body 6.

[0020] Reference Figure 3-4The control mechanism 3 includes a support platform 301 fixedly connected to the side of the shell 1, a motor 302 is fixedly connected to the upper surface of the support platform 301, a lifting groove connected to the moving groove 2 is provided on the upper surface of the shell 1, a lifting plate 303 is slidably connected inside the lifting groove, a storage groove 304 is provided on the upper surface of the lifting plate 303, a plurality of ventilation grooves 305 connected to the storage groove 304 are provided on the left and right side walls of the lifting plate 303, a fan body 306 is installed inside the storage groove 304, one end of the fan body 306 extends to the outside of the lifting plate 303 and is fixedly connected to a clamping rod 307, and a lifting plate 303 is slidably connected inside the lifting groove. A lifting block 310 is connected, and a transmission rod 308 is rotatably connected to the side wall of the lifting block 310. A slot 309 is provided on the upper surface of the transmission rod 308. A support plate is fixedly connected to the inside of the movable slot 2, and a rotating rod 311 is rotatably connected to the side wall of the support plate. The upper end of the rotating rod 311 and the other end of the transmission rod 308 are both sleeved with a first bevel gear set 313, and a power rod 312 is rotatably connected to the side wall of the telescopic slot 201. One end of the power rod 312 passes through the movable slot 2 and is fixedly connected to the end of the output shaft of the motor 302, and the other end of the power rod 312 and the lower end of the rotating rod 311 are both sleeved with a second bevel gear set 314.

[0021] What needs to be particularly explained in this embodiment is that: when it is necessary to protect the electrical machine body 6, the lifting plate 303 is pressed downward, the lifting plate 303 will move down inside the lifting slot and enter the movable slot 2, the sensor at the lower end of the lifting plate 303 will contact the inside of the movable slot 2, the sensor will send a signal to the motor 302, and the motor 302 will operate after receiving the signal, and the lifting plate 303 will move downward during the process of moving downward, and the clamping rod 307 will enter the clamping slot 309, and drive the lifting block 310 to move downward together, and realize the engagement of the first bevel gear set 313, the motor 302 will drive the power rod 312 to rotate, and under the action of the second bevel gear set 314, the rotating rod 311 will rotate, and under the action of the clamping rod 307 and the clamping slot 309, the fan body 306 will rotate, so as to achieve the purpose of air circulation, so as to facilitate the timely dissipation of heat generated during the subsequent operation of the electrical machine body 6.

[0022] Reference Figure 2 The width of the electric machine body 6 is equal to the width of the moving slot 2, and the interior of the housing 1 is arranged in a step-like structure.

[0023] It should be particularly noted that in this embodiment, the electrical machine body 6 will move into the moving groove 2 to prevent external dust and moisture from affecting the electrical machine body 6 .

[0024] Reference Figure 4A sensor is arranged at the bottom of the movable slot 2, and the output end of the sensor is connected to the input end of the motor 302 by telecommunication. The clamping rod 307 is arranged in a rectangular parallelepiped structure, and the fan body 306 is composed of a rotating shaft and a plurality of rotating blades.

[0025] What needs to be particularly explained in this embodiment is that: the sensor at the lower end of the lifting plate 303 will contact the inside of the moving slot 2, and the sensor will send a signal to the motor 302, and the motor 302 will operate after receiving the signal.

[0026] Reference Figure 5-6 The telescopic mechanism 4 includes a bearing plate 401 slidably connected to the bottom of the telescopic slot 201, the electric machine body 6 is fixedly connected to the center of the upper surface of the bearing plate 401, the inside of the telescopic slot 201 is rotatably connected with a threaded rod 402, one end of the threaded rod 402 passes through the bearing plate 401 and is threadedly connected to the bearing plate 401, one end of the threaded rod 402 is provided with a first limiting groove 408, the bottom of the telescopic slot 201 is slidably connected with a telescopic plate 403, two springs 404 are fixedly connected to the side of the telescopic plate 403, one end of the spring 404 is fixedly connected to the side wall of the telescopic slot 201, a round rod 405 is rotatably connected to the side wall of the telescopic plate 403, one end of the round rod 405 close to the threaded rod 402 is fixedly connected to the first limiting rod 406, the other end of the round rod 405 is fixedly connected to the second limiting rod 407, one end of the power rod 312 is provided with a second limiting groove 409, and one end of the electric machine body 6 extends out of the bearing plate 401.

[0027] What needs to be specially explained in this embodiment is that: the motor 302 will drive the power rod 312 to rotate, and under the action of the second limiting rod 407 and the second limiting groove 409, the round rod 405 is rotated, and under the action of the first limiting rod 406 and the first limiting groove 408, the threaded rod 402 is rotated, and the bearing plate 401 drives the electrical machine body 6 to enter the movable groove 2. Since one end of the electrical machine body 6 extends out of the bearing plate 401, when the bearing plate 401 moves to a specific position, the electrical machine body 6 will push the telescopic plate 403 to move, the spring 404 is compressed, and the first limiting rod 406 moves out of the first limiting groove 408, so that the threaded rod 402 stops moving, the bearing plate 401 stops moving, and when the electrical machine body 6 moves to the movable groove 2, the electrical machine body 6 is protected.

[0028] Reference Figure 6 The thickness of the telescopic plate 403 is equal to the depth of the telescopic slot 201 , the longitudinal sections of the first limiting rod 406 and the second limiting rod 407 are both rectangular, the first limiting rod 406 is adapted to the first limiting slot 408 , the second limiting rod 407 is adapted to the second limiting slot 409 , and the height of the telescopic plate 403 is greater than the width of the telescopic slot 201 .

[0029] It should be particularly noted that in this embodiment: when the bearing plate 401 moves to a specific position, the electrical machine body 6 pushes the telescopic plate 403 to move, the spring 404 is compressed, and the first limiting rod 406 moves out of the first limiting groove 408, so that the threaded rod 402 stops moving.

[0030] Reference Figure 7 The protection mechanism 5 includes a connecting groove 502 opened on the upper surface of the shell 1, and a protection plate 501 is slidably connected inside the connecting groove 502. Conductive grooves 503 are opened on both side walls of the shell 1, and electromagnetic plates 504 are fixedly installed inside the conductive grooves 503. A through hole 505 is opened through the lower side of the protection plate 501.

[0031] What needs to be specially explained in this embodiment is that: since the output end of the electric machine body 6 is electrically connected to the input end of the electromagnetic plate 504, after the electric machine body 6 moves into the movable slot 2, it will supply power to the electromagnetic plate 504, and the electromagnetic plate 504 will adsorb the protection plate 501. When the electric machine body 6 is powered off, the electromagnetic plate 504 will not adsorb the protection plate 501, and the protection plate 501 will close the telescopic slot 201 under the action of gravity, thereby realizing power-off protection for the electric machine body 6.

[0032] Reference Figure 7 The output end of the electric machine body 6 is electrically connected to the input end of the electromagnetic plate 504 . The protection plate 501 is made of steel material. The size of the through hole 505 is adapted to the size of the threaded rod 402 .

[0033] It should be particularly noted in this embodiment that: when the electrical machine body 6 is powered off, the electromagnetic plate 504 will not adsorb the protection plate 501, and the protection plate 501 will close the expansion slot 201 under the action of gravity, thereby achieving power-off protection for the electrical machine body 6.

[0034] The working principle of the present invention is as follows: when the electrical machine body 6 needs to be protected, the lifting plate 303 is pressed downward, the lifting plate 303 will move down inside the lifting slot and enter the movable slot 2, the sensor at the lower end of the lifting plate 303 will contact the inside of the movable slot 2, the sensor will send a signal to the motor 302, the motor 302 will operate after receiving the signal, during the downward movement of the lifting plate 303, the clamping rod 307 will enter the clamping slot 309, and drive the lifting block 310 to move down together, and realize the meshing of the first bevel gear set 313, the motor 302 will drive the power rod 312 to rotate, under the action of the second bevel gear set 314, the rotating rod 311 will rotate, under the action of the clamping rod 307 and the clamping slot 309, the fan body 3 will be realized. 06 rotates to achieve the purpose of air circulation, so as to facilitate the timely dissipation of heat generated during the subsequent operation of the electrical machine body 6. Due to the friction inside the lifting slot, the friction between the lifting plate 303 and the lifting slot is equal to the friction of the control mechanism. Therefore, the control mechanism will not descend inside the lifting slot without the action of external force, and the control mechanism will remain stationary inside the lifting slot. When the electrical machine body 6 fails, it is necessary to protect the electrical machine body 6, press the lifting plate 303 downward, and under the action of external force, the lifting plate 303 moves downward to achieve the purpose of closing one side of the moving slot 2. When the electrical machine body 6 is powered, the lifting plate 303 will not move, and the lifting plate 303 will continue to form a closure on one side of the moving slot 2. The motor 302 drives the power rod 312 to rotate. Under the action of the second limiting rod 407 and the second limiting groove 409, the round rod 405 rotates. Under the action of the first limiting rod 406 and the first limiting groove 408, the threaded rod 402 rotates, and the bearing plate 401 drives the electrical machine body 6 to enter the moving groove 2. Since one end of the electrical machine body 6 extends out of the bearing plate 401, when the bearing plate 401 moves to a specific position, the electrical machine body 6 pushes the telescopic plate 403 to move, the spring 404 is compressed, and the first limiting rod 406 moves out of the first limiting groove 408, so that the threaded rod 402 stops. Stop moving, the bearing plate 401 stops moving, when the electric machine body 6 moves into the moving slot 2, the electric machine body 6 is protected, the sensor at the lower end of the lifting plate 303 will contact the inside of the moving slot 2, the sensor will send a signal to the motor 302, the motor 302 will run after receiving the signal, the motor 302 will drive the power rod 312 to rotate, the threaded rod 402 will rotate, the bearing plate 401 drives the electric machine body 6 to enter the moving slot 2, the purpose of protecting the electric machine body 6 is achieved, preventing it from being directly exposed to the outside air, and reducing the influence of moisture and dust on the electric machine; Since the output end of the electric machine body 6 is connected to the input end of the electromagnetic plate 504 by telecommunication, the electric machine body 6 will supply power to the electromagnetic plate 504 after it moves into the movable slot 2, and the electromagnetic plate 504 will adsorb the protection plate 501. When the electric machine body 6 is powered off, the electromagnetic plate 504 will not adsorb the protection plate 501, and the protection plate 501 will close the telescopic slot 201 under the action of gravity, so as to realize the power-off protection of the electric machine body 6. When the electric machine body 6 does not fail, the electric machine body 6 is powered by an external power supply. When the electric machine body 6 generates a large amount of heat due to a failure, in order to protect the electric machine body 6, it is necessary To perform power-off protection on the electric motor body 6, the electric motor body 6 is moved into the movable slot 2 through the telescopic mechanism to achieve the purpose of separating the external power supply from the electric motor body 6. Current will remain in the electric motor body 6. When the electric motor body 6 is moved into the movable slot 2, the residual current in the electric motor body 6 will disappear, and the electromagnetic plate 504 will not adsorb the protection plate 501. The protection plate 501 will close the telescopic slot 201 under the action of gravity, and the electric motor body 6 will be sealed in the movable slot 2 for protection. In addition, a large amount of heat generated by the electric motor body 6 due to the fault will be discharged through the rotation of the fan body 306.

[0035] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power-off protection device for electrical machinery, comprising a housing (1), characterized in that: A movable groove (2) is provided through the side surface of the housing (1); a telescopic groove (201) is provided at the bottom of the movable groove (2); the telescopic groove (201) extends to a side edge of the housing (1); an electric machine body (6) is arranged inside the housing (1); a control mechanism (3) for controlling the device is arranged on the upper surface of the housing (1); a telescopic mechanism (4) for moving the electric machine body (6) is arranged inside the telescopic groove (201); and a protection mechanism (5) for powering off the electric machine body (6) is arranged inside the housing (1); The control mechanism (3) comprises a support platform (301) fixedly connected to the side of the housing (1); a motor (302) is fixedly connected to the upper surface of the support platform (301); a lifting groove connected to the movable groove (2) is provided on the upper surface of the housing (1); a lifting plate (303) is slidably connected inside the lifting groove; a storage groove (304) is provided on the upper surface of the lifting plate (303); a plurality of ventilation grooves (305) connected to the storage groove (304) are provided on the left and right side walls of the lifting plate (303); a fan body (306) is installed inside the storage groove (304); one end of the fan body (306) extends to the outside of the lifting plate (303) and is fixedly connected to a clamping rod (307); a sliding plate (303) is provided on the side wall of the movable groove (2); A lifting block (310) is rotatably connected to the lifting block (310), a transmission rod (308) is rotatably connected to the side wall of the lifting block (310), a clamping groove (309) is provided on the upper surface of the transmission rod (308), a support plate is fixedly connected to the inside of the movable groove (2), a rotating rod (311) is rotatably connected to the side wall of the support plate, the upper end of the rotating rod (311) and the other end of the transmission rod (308) are both sleeved with a first bevel gear set (313), a power rod (312) is rotatably connected to the side wall of the telescopic groove (201), one end of the power rod (312) passes through the movable groove (2) and is fixedly connected to the end of the output shaft of the motor (302), and the other end of the power rod (312) and the lower end of the rotating rod (311) are both sleeved with a second bevel gear set (314).

2. The electrical and mechanical power-off protection device according to claim 1, characterized in that: The width of the electric machine body (6) is equal to the width of the movable slot (2), and the interior of the housing (1) is arranged in a stepped structure.

3. The electrical and mechanical power-off protection device according to claim 1, characterized in that: A sensor is provided at the bottom of the movable slot (2), the output end of the sensor is electrically connected to the input end of the motor (302), the clamping rod (307) is provided in a rectangular parallelepiped structure, and the fan body (306) is composed of a rotating shaft and a plurality of rotating blades.

4. The electrical and mechanical power-off protection device according to claim 1, characterized in that: The telescopic mechanism (4) comprises a bearing plate (401) slidably connected to the bottom of the telescopic slot (201); the electric machine body (6) is fixedly connected to the center of the upper surface of the bearing plate (401); a threaded rod (402) is rotatably connected inside the telescopic slot (201); one end of the threaded rod (402) passes through the bearing plate (401) and is threadedly connected to the bearing plate (401); one end of the threaded rod (402) is provided with a first limiting groove (408); the bottom of the telescopic slot (201) is slidably connected to the telescopic plate (403); the telescopic plate (403) ) is fixedly connected to the side of the telescopic plate (403), one end of the spring (404) is fixedly connected to the side wall of the telescopic groove (201), a round rod (405) is rotatably connected to the side wall of the telescopic plate (403), one end of the round rod (405) close to the threaded rod (402) is fixedly connected to a first limiting rod (406), the other end of the round rod (405) is fixedly connected to a second limiting rod (407), one end of the power rod (312) is provided with a second limiting groove (409), and one end of the electric machine body (6) extends out of the bearing plate (401).

5. The electrical and mechanical power-off protection device according to claim 4, characterized in that: The thickness of the telescopic plate (403) is equal to the depth of the telescopic slot (201); the longitudinal sections of the first limiting rod (406) and the second limiting rod (407) are both rectangular; the first limiting rod (406) is adapted to fit the first limiting slot (408); the second limiting rod (407) is adapted to fit the second limiting slot (409); and the height of the telescopic plate (403) is greater than the width of the telescopic slot (201).

6. The electrical and mechanical power-off protection device according to claim 4, characterized in that: The protection mechanism (5) comprises a connecting groove (502) formed on the upper surface of the housing (1), a protection plate (501) being slidably connected to the interior of the connecting groove (502), conductive grooves (503) being formed on both side walls of the housing (1), electromagnetic plates (504) being fixedly mounted to the interior of the conductive grooves (503), and a through hole (505) being formed through the side edge of the lower end of the protection plate (501).

7. The electrical and mechanical power-off protection device according to claim 6, characterized in that: The output end of the electric machine body (6) is electrically connected to the input end of the electromagnetic plate (504); the protection plate (501) is made of steel; and the size of the through hole (505) matches the size of the threaded rod (402).

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