CN118675954A - Magnetic control manual brake separating system - Google Patents

Abstract

The invention relates to the technical field of circuit breaker opening and closing, in particular to a magnetic control manual opening and closing system, which comprises a shell and a plurality of insulating polar posts positioned at the top end of the shell, wherein a plurality of permanent magnet bottom plates are detachably arranged on the inner surface of the shell, a magnetic control mechanism is detachably arranged on one side of each permanent magnet bottom plate and comprises a lower half cover which can be opened and closed, a manual opening and closing assembly is arranged on one side wall of the shell, one end of the manual opening and closing assembly is detachably connected with a control assembly, one end of the control assembly is connected with a transmission main shaft, and a plurality of main shaft crank arms are arranged on the outer side wall of the transmission main shaft. When the magnetic control device drives the magnetic control mechanism to reset, the second brake separating shaft and the wrench keep a static state, the transmission rotating shaft moves from one end of the arc chute to the other end, and the magnetic control mechanism is changed from a separation state to a closing state, so that the increase of the resistance of the circuit breaker for lifting the wrench in the rotating process is avoided, the switching speed of the magnetic control mechanism is influenced, and the stability and the reliability of products are ensured.

Description

A magnetically controlled manual opening system

Technical Field

The invention relates to the technical field of circuit breaker opening and closing, and in particular to a magnetically controlled manual opening system.

Background Art

When an abnormal situation such as overload, short circuit, ground fault, etc. occurs in the circuit, the circuit breaker can quickly cut off the faulty circuit to prevent equipment damage and safety accidents such as fire. In some emergency situations, such as sudden equipment failure and electric shock, it is necessary to immediately cut off the power supply to reduce losses or injuries. The circuit breaker with manual opening can respond quickly to achieve emergency disconnection of the circuit.

During the opening process of a manually opened circuit breaker, the purpose of opening is mostly achieved by pulling the wrench to drive the main shaft to rotate. However, during the closing process, the magnetic control mechanism may need to drive the main shaft to rotate and drive the wrench to rotate at the same time. The wrench torque is large, which increases the resistance of the magnetic control switch when closing. When the resistance of the magnetic control switch closing valve increases, the switching speed of the circuit breaker will slow down because it needs to overcome greater resistance to move the valve core. The increase in the closing resistance may also affect the stability and reliability of the circuit breaker during operation. For example, during the closing process, problems such as jamming, jittering, or incomplete closure may occur, affecting the normal operation of the circuit breaker.

Therefore, it is necessary to invent a magnetically controlled manual opening system to solve the above problems.

Summary of the invention

The purpose of the present invention is to provide a magnetically controlled manual opening system, which reduces the closing resistance of a magnetically controlled valve body and increases the switching speed by changing the transmission structure and optimizing and improving the transmission mode.

To achieve this object, the present invention adopts the following technical solutions:

A magnetically controlled manual opening system is provided, comprising a shell and a plurality of insulating poles located at the top of the shell, wherein a plurality of permanent magnetic base plates are detachably mounted on the inner surface of the shell at the position of the insulating poles, a magnetic control mechanism is detachably mounted on one side of the permanent magnetic base plate, the magnetic control mechanism comprises an openable and closable lower half cover, a rotatable manual opening and closing component is mounted on one side wall of the shell, a control component is detachably connected to one end of the manual opening and closing component, a transmission main shaft is connected to one end of the control component, a plurality of main shaft crank arms that can drive the lower half cover to separate are mounted on the outer side wall of the transmission main shaft, the control component comprises a second opening shaft, an end of the transmission main shaft is connected to the second opening shaft by means of an adjusting bolt, and the second opening shaft is provided with an arc-shaped through hole for the transmission main shaft to rotate on the side where the adjusting bolt is located.

As a preferred solution of a magnetically controlled manual opening system, the manual opening and closing component includes a first opening shaft that passes through a shell, a portion of the first opening shaft located outside the shell is provided with a clamping block, and the clamping block is detachably connected to a wrench for opening the switch, and a first limit pin and a second limit pin for limiting are installed on the inner side of the shell where the first opening shaft is located, a pull pin is passed through the first opening shaft, and the pull pin swings inside the first limit pin and the second limit pin, a reset spring is provided at one end of the pull pin, and the other end of the reset spring is connected to a reset pin installed on one side of the shell, and the reset spring can drive the first opening shaft to move to the position before the wrench is pulled down, and one end of the first opening shaft is clamped with the second opening shaft.

As a preferred solution of a magnetically controlled manual opening system, the transmission main shaft is detachably installed with multiple pulling components, and the pulling components include multiple main shaft crank arms sleeved on the outside of the transmission main shaft, and the multiple main shaft crank arms are all connected with rotatable lifting ears, and the lifting ears can be detachably installed on the end surface of the lower half cover.

As a preferred solution of a magnetically controlled manual opening system, an upper half cover is further provided at the position where the magnetically controlled mechanism contacts the permanent magnetic base plate, and multiple corners of the permanent magnetic base plate are provided with mechanism support columns for support, and the mechanism support columns are located on one side of the lower half cover and are detachably installed with a mechanism pressure plate, and the mechanism pressure plate is provided with a through hole for the longitudinal movement of the lifting ear, and multiple spindle fixing plates for installing a transmission spindle or a control component are detachably installed on the top of the mechanism pressure plates.

As a preferred solution of a magnetically controlled manual opening system, a third opening shaft is arranged on one side of the second opening shaft, and mutually meshing driving gears are installed on the outer sides of the second opening shaft and the third opening shaft. The third opening shaft is provided with an arc-shaped through hole with the same size as the second opening shaft, and the third opening shaft is connected to an auxiliary rotating shaft through an adjusting bolt.

As a preferred solution of a magnetically controlled manual opening system, the outer wall of the transmission main shaft is sleeved with a plurality of first auxiliary gears, the outer wall of the auxiliary rotating shaft is installed with a plurality of second auxiliary gears that mesh with the first auxiliary gears, buffer components are arranged on both sides of the first auxiliary gears and the second auxiliary gears, and a rotating shaft fixing plate for rotating the auxiliary rotating shaft is detachably installed on the top of the mechanism pressure plate.

As a preferred solution of a magnetically controlled manual opening system, the buffer assembly includes a plurality of insulating connecting plates detachably mounted on the outer wall of the lower half cover, and the end faces of the insulating connecting plates are detachably mounted with racks for reducing the impact of falling, and the first auxiliary gear and the second auxiliary gear are provided with clamping gears meshing with the racks on both sides.

As a preferred solution for a magnetically controlled manual opening system, one side of the auxiliary shaft is connected to an indication component for displaying the opening and closing of the magnetically controlled mechanism, the indication component includes an indication panel located on the outside of the shell and a rotatable pointer, the side wall of the shell is penetrated by an indication shaft that can drive the pointer to rotate, a warning light is arranged on one side of the indication panel, and a switch for controlling the turning on of the warning light is installed on the inner wall of the shell at the side where the warning light is located.

As a preferred solution of a magnetically controlled manual opening system, a first driven gear is meshed and connected to one side of the second auxiliary gear close to the indicating component, and the first driven gear is installed on the outer wall of the gear shaft. A positioning block for the gear shaft to rotate is provided at the top of the mechanism pressure plate, a second bevel gear is installed on one side of the gear shaft, and a first bevel gear meshing with the second bevel gear is provided at one end of the indicating shaft.

As a preferred solution of a magnetically controlled manual opening system, a shift fork is sleeved on one side of the indicating shaft located inside the housing, and the switch is located inside a groove where the shift fork is located.

Beneficial effects of the present invention: by optimizing the control component, an arc-shaped through hole is opened in the second opening shaft, and the arc-shaped through hole can realize that during the separation process of the magnetic control mechanism, the wrench drives the second opening shaft to rotate, one end of the arc-shaped through hole first fits with one end of the transmission main shaft, and then drives the transmission main shaft to rotate, and the pulling component drives the magnetic control mechanism to separate, so as to achieve the purpose of circuit breaking. After the manual opening is completed, the first opening shaft and the second opening shaft will drive the wrench to reset under the action of the reset spring, while the magnetic control mechanism is still in the open and closed state, which is convenient for the subsequent manual opening and closing by the wrench again after the magnetic control mechanism is closed, reducing the difficulty of using the product and increasing the scope of application of the product.

When the magnetic control device drives the magnetic control mechanism to reset, the second opening shaft and the wrench remain stationary, the transmission shaft moves from one end of the arc-shaped slide groove to the other end, and the magnetic control mechanism changes from a separated state to a closed state, thereby achieving the process of magnetic control closing and avoiding the increase in circuit breaker resistance caused by lifting the wrench during rotation, affecting the switching speed of the circuit breaker, and avoiding problems such as jitter or incomplete closure, thereby ensuring the stability and reliability of the product.

Since the transmission main shaft drives the three pulling components to rotate simultaneously starting from one end, the third pulling component at the end of the transmission main shaft bears the greatest force. After repeated use, the transmission main shaft may be twisted due to uneven force, resulting in the three pulling components possibly being unable to achieve the purpose of opening and closing at the same time, causing a safety hazard. The auxiliary rotating shaft, the third opening shaft, the driving gear and the second auxiliary gear are arranged to effectively disperse the forces borne by multiple positions in the transmission main shaft, thereby avoiding the problem of the transmission main shaft being twisted and the circuit breaker being unable to close synchronously.

During the opening process, since the product uses a magnetic control device for automatic opening and closing, the upper cover and the lower cover are made of metal and have a large mass. During the opening process, the lower cover falls freely multiple times, which may impact the main shaft crank arm, causing the main shaft crank arm to loosen, resulting in shaking, and the synchronization rate decreases, affecting the synchronous opening of the magnetic control mechanism. Therefore, an insulating connecting plate, a rack and a clamping gear are provided. The impact of the lower cover falling is effectively reduced through the setting of a buffer component. At the same time, the setting of the insulating connecting plate can increase the ability of multiple lower covers to close and open synchronously, thereby improving the synchronization rate.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required to be used in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic diagram of the overall structure of a magnetically controlled manual opening system according to the present invention.

FIG. 2 is a schematic diagram of the overall assembly of the present invention after removing the shell.

FIG. 3 is a schematic diagram of the structure of the present invention when the shell is removed and viewed from above.

FIG. 4 is a schematic diagram of the assembly structure of the transmission main shaft of the present invention.

FIG. 5 is a schematic diagram of the auxiliary shaft assembly structure of the present invention.

FIG. 6 is a schematic diagram of the structure of the manual opening and closing assembly of the present invention.

FIG. 7 is a schematic diagram of the enlarged structure of point A in FIG. 4 .

FIG8 is an enlarged structural schematic diagram of point B in FIG5 .

FIG. 9 is a schematic diagram of the structure of the indicator assembly of the present invention.

FIG. 10 is a schematic diagram of the enlarged structure of point C in FIG. 9 .

In the figure: 1, housing; 2, manual opening and closing assembly; 201, wrench; 202, block; 203, reset spring; 204, first opening shaft; 205, first limit pin; 206, second limit pin; 207, reset pin; 208, pull pin;

3. Insulated pole; 4. Indicator assembly; 401. Pointer; 402. Indicator panel; 403. Fork; 404. First bevel gear; 405. Second bevel gear; 406. First driven gear; 407. Gear shaft; 408. Positioning block; 409. Indicator shaft;

5. Control assembly; 501. Arc-shaped through hole; 502. Adjusting bolt; 503. Second opening shaft; 504. Third opening shaft;

6. Transmission main shaft; 601. First auxiliary gear; 602. Main shaft fixing plate; 603. Mechanism pressure plate; 604. Permanent magnetic bottom plate; 605. Mechanism support column;

7. Magnetic control mechanism; 701. Upper half cover; 702. Lower half cover; 8. Pulling assembly; 801. Spindle crank arm; 802. Lifting ear; 9. Auxiliary rotating shaft; 901. Driving gear; 902. Rotating shaft fixing plate; 903. Second auxiliary gear;

10. Buffer assembly; 1001. Clamping gear; 1002. Rack; 1003. Insulating connecting plate; 11. Warning light; 1101. Switch.

DETAILED DESCRIPTION

The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

With reference to FIGS. 1 to 10 , an example of the present invention provides a magnetically controlled manual opening system, comprising a housing 1 and a plurality of insulating poles 3 located at the top of the housing 1, wherein the inner surface of the housing 1 located at the position of the insulating poles 3 is detachably mounted with a plurality of permanent magnetic base plates 604, and a magnetic control mechanism 7 is detachably mounted on one side of the permanent magnetic base plate 604, wherein the magnetic control mechanism 7 comprises an openable lower half cover 702, and a rotatable manual opening and closing component 2 is mounted on one side wall of the housing 1, and a control component 5 is detachably connected to one end of the manual opening and closing component 2, and a transmission main shaft 6 is connected to one end of the control component 5, and a plurality of drive shafts 6 are mounted on the outer side wall of the transmission main shaft 6. 702 separates the main shaft crank arm 801, the control component 5 includes a second opening shaft 503, the end of the transmission main shaft 6 is connected to the second opening shaft 503 by means of an adjusting bolt 502, the second opening shaft 503 is located on the side where the adjusting bolt 502 is located, and is provided with an arc-shaped through hole 501 for the transmission main shaft 6 to rotate, the rotation stroke of the transmission main shaft 6 is matched with the opening of the arc-shaped through hole 501, when the transmission main shaft 6 drives the lower half cover 702 to close, the adjusting bolt 502 inserted at one end of the transmission main shaft 6 moves from one end of the arc-shaped through hole 501 to the other end face, so that in the process of closing the lower half cover 702, the resistance of the magnetic control mechanism when closing the valve 7 is reduced.

The manual opening and closing assembly 2 includes a first opening brake shaft 204 that passes through the shell 1. The first opening brake shaft 204 is provided with a block 202 on the outer side of the shell 1. The block 202 is detachably connected with a wrench 201 for opening the brake. The shell 1 is provided with a first limit pin 205 and a second limit pin 206 for limiting the position on the inner side of the first opening brake shaft 204. The first opening brake shaft 204 is penetrated by a pull pin 208. The pull pin 208 swings inside the first limit pin 205 and the second limit pin 206. A reset spring is provided at one end of the pull pin 208. 203, the other end of the reset spring 203 is connected to a reset pin 207 installed on one side of the shell 1, and the reset spring 203 can drive the first opening gate shaft 204 to move to the position before the wrench 201 is pulled down, and one end of the first opening gate shaft 204 is clamped with the second opening gate shaft 503. Through the setting of the pull pin 208 and the first limit pin 205 and the second limit pin 206, the rotation angle of the first opening gate shaft 204 is effectively controlled, which is convenient for limiting the stroke of the first opening gate shaft 204 and the second opening gate shaft 503, so as to avoid affecting the valve opening effect of the pulling component 8.

The transmission main shaft 6 is detachably mounted with a plurality of pulling assemblies 8, and the pulling assemblies 8 include a plurality of main shaft crank arms 801 sleeved on the outside of the transmission main shaft 6, and the plurality of main shaft crank arms 801 are all connected with rotatable lifting ears 802, and the lifting ears 802 are detachably mounted on the end surface of the lower half cover 702. By coaxially arranging the plurality of main shaft crank arms 801, the synchronous opening and closing of the plurality of magnetic control mechanisms 7 is achieved, thereby ensuring the response effect of the product.

An upper half cover 701 is also provided at the position where the magnetron mechanism 7 contacts the permanent magnet base plate 604, and multiple corners of the permanent magnet base plate 604 are provided with mechanism support columns 605 for support. The mechanism support column 605 is located on one side of the lower half cover 702 and is detachably mounted with a mechanism pressure plate 603. The mechanism pressure plate 603 is provided with a through hole for the longitudinal movement of the lifting ear 802. A spindle fixing plate 602 for mounting the transmission spindle 6 or the control component 5 is detachably mounted on the top of multiple mechanism pressure plates 603. The arrangement of the mechanism pressure plate 603 and the spindle fixing plate 602 provides a fulcrum for the transmission spindle 6 to pull the lower half cover 702, and at the same time limits the magnetron mechanism 7.

A third opening shaft 504 is arranged on one side of the second opening shaft 503, and mutually meshing driving gears 901 are installed on the outer sides of the second opening shaft 503 and the third opening shaft 504. The third opening shaft 504 is provided with an arc-shaped through hole 501 of the same size as the second opening shaft 503, and the third opening shaft 504 is connected to the auxiliary rotating shaft 9 through an adjusting bolt 502. The arc-shaped through hole 501 provided on the third opening shaft 504 corresponds to that of the second opening shaft 503, ensuring that when the magnetic control mechanism 7 is closed, the third opening shaft 504 and the second opening shaft 503 are in a stationary state.

The outer wall of the transmission main shaft 6 is sleeved with a plurality of first auxiliary gears 601, and the outer wall of the auxiliary rotating shaft 9 is installed with a plurality of second auxiliary gears 903 meshing with the first auxiliary gears 601. Buffer components 10 are arranged on both sides of the first auxiliary gears 601 and the second auxiliary gears 903. A rotating shaft fixing plate 902 for rotating the auxiliary rotating shaft 9 is detachably installed on the top of the mechanism pressure plate 603. The buffer component 10 is arranged to disperse the impact force when the lower half cover 702 falls to avoid loosening of the main shaft crank arm 801. The rack 1002 is arranged to ensure the smooth falling of the lower half cover 702 to avoid damage to the transmission main shaft 6 due to deviation.

The buffer assembly 10 includes a plurality of insulating connecting plates 1003 detachably mounted on the outer wall of the lower half cover 702, and a rack 1002 for reducing the impact of falling is detachably mounted on the end face of the insulating connecting plate 1003. The first auxiliary gear 601 and the second auxiliary gear 903 are sleeved on both sides with clamping gears 1001 meshing with the rack 1002. The provision of the insulating connecting plates 1003 helps the lower half cover 702 to fall and close synchronously, avoiding problems such as equipment overheating, burning or system instability, which may cause dangerous situations such as sparks and arcs.

One side of the auxiliary shaft 9 is connected to an indication component 4 for displaying the opening and closing of the magnetic control mechanism 7. The indication component 4 includes an indication panel 402 located on the outside of the shell 1 and a rotatable pointer 401. The side wall of the shell 1 is penetrated by an indication shaft 409 that can drive the pointer 401 to rotate. A warning light 11 is arranged on one side of the indication panel 402. A switch 1101 for controlling the turning on of the warning light 11 is installed on the inner wall of the shell 1 at the side where the warning light 11 is located. By setting the indication component 4, the closing state of the magnetic control mechanism 7 is monitored in real time. When the magnetic control mechanism 7 is in a separated state, the warning light 11 will emit light, which can also be used to understand the separation state of the magnetic control mechanism 7 in a dim environment.

A first driven gear 406 is meshedly connected to one side of the second auxiliary gear 903 near the indicating component 4, and the first driven gear 406 is installed on the outer wall of the gear shaft 407. A positioning block 408 for the gear shaft 407 to rotate is provided at the top of the mechanism pressure plate 603, and a second bevel gear 405 is installed on one side of the gear shaft 407. A first bevel gear 404 meshing with the second bevel gear 405 is provided at one end of the indicating shaft 409. Through the meshing of the first driven gear 406 and the second auxiliary gear 903, and the meshing of the second bevel gear 405 and the first bevel gear 404, when the lower half cover 702 is separated, the indicating shaft 409 rotates, driving the pointer 401 to rotate, thereby achieving the purpose of real-time monitoring of the magnetic control mechanism 7.

The indicating shaft 409 is sleeved with a shift fork 403 on one side inside the housing 1, and the switch 1101 is located inside the groove where the shift fork 403 is located. Driven by the indicating shaft 409, the shift fork 403 achieves the purpose of turning the switch 1101 to control the warning light 11 to emit light, meeting the usage scenario under dim conditions.

The present invention, through the optimization of the control component 5, opens an arc through hole 501 in the second opening shaft 503, and the arc through hole 501 can realize that during the separation process of the magnetic control mechanism 7, the wrench 201 drives the second opening shaft 503 to rotate, and one end of the arc through hole 501 first fits with one end of the transmission main shaft 6, and then drives the transmission main shaft 6 to rotate, and the pulling component 8 drives the magnetic control mechanism 7 to separate, so as to achieve the purpose of breaking the circuit. After the manual opening is completed, the first opening shaft 204 and the second opening shaft 503 will drive the wrench 201 to reset under the action of the reset spring 203, while the magnetic control mechanism 7 is still in the open and closed state, which is convenient for the subsequent manual opening and closing by the wrench 201 again after the magnetic control mechanism 7 is closed, thereby reducing the difficulty of using the product and increasing the scope of application of the product.

When the magnetic control device drives the magnetic control mechanism 7 to reset, the second opening shaft 503 and the wrench 201 remain stationary, the transmission shaft moves from one end of the arc-shaped slide groove to the other end, and the magnetic control mechanism 7 changes from a separated state to a closed state, thereby achieving the process of magnetic control closing, avoiding the increase in circuit breaker resistance caused by lifting the wrench 201 during rotation, affecting the opening and closing speed of the circuit breaker, avoiding jitter or incomplete closing, and ensuring the stability and reliability of the product.

Since the transmission main shaft 6 drives the three pulling components 8 to rotate simultaneously starting from one end, the third pulling component 8 at the end of the transmission main shaft 6 bears the greatest force. After repeated use, the transmission main shaft 6 may be twisted due to uneven force, resulting in the three pulling components 8 possibly being unable to achieve the purpose of opening and closing at the same time, causing a safety hazard. Through the arrangement of the auxiliary rotating shaft 9, the third opening shaft 504, the driving gear 901 and the second auxiliary gear 903, the forces borne by multiple positions in the transmission main shaft 6 can be effectively dispersed, thereby avoiding the problem that the transmission main shaft 6 is twisted and the circuit breaker cannot be closed synchronously.

During the opening process, since the product adopts a magnetic control device for automatic opening and closing, this will cause the upper half cover 701 and the lower half cover 702 to be made of metal and have a large mass. During the opening process, the lower half cover 702 falls freely multiple times, which may impact the main shaft crank arm 801, causing the main shaft crank arm 801 to loosen, resulting in shaking, reducing the synchronization rate, and affecting the synchronous opening of the magnetic control mechanism 7. Therefore, an insulating connecting plate 1003, a rack 1002 and a clamping gear 1001 are provided. The setting of the buffer component 10 can effectively reduce the impact of the lower half cover 702 falling. At the same time, the setting of the insulating connecting plate 1003 can increase the ability of multiple lower half covers 702 to close and open synchronously, thereby improving the synchronization rate.

It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims (10)

1. A magnetically controlled manual opening system, characterized in that it comprises a housing (1) and a plurality of insulating poles (3) located at the top of the housing (1); a plurality of permanent magnetic base plates (604) are detachably mounted on the inner surface of the housing (1) at the position where the insulating poles (3) are located; a magnetic control mechanism (7) is detachably mounted on one side of the permanent magnetic base plate (604); the magnetic control mechanism (7) comprises an openable lower half cover (702); a rotatable manual opening and closing component (2) is mounted on one side wall of the housing (1); one end of the manual opening and closing component (2) is detachably mounted A control component (5) is connected, one end of the control component (5) is connected to a transmission main shaft (6), the outer wall of the transmission main shaft (6) is provided with a plurality of main shaft crank arms (801) capable of driving the lower half cover (702) to separate, the control component (5) comprises a second opening shaft (503), the end of the transmission main shaft (6) is connected to the second opening shaft (503) by inserting an adjusting bolt (502), and the second opening shaft (503) is provided with an arc-shaped through hole (501) on the side where the adjusting bolt (502) is located for the transmission main shaft (6) to rotate. 2. A magnetically controlled manual opening system according to claim 1, characterized in that: the manual opening and closing component (2) comprises a first opening shaft (204) penetrating the housing (1), a portion of the first opening shaft (204) located outside the housing (1) is provided with a clamping block (202), the clamping block (202) is detachably connected to a wrench (201) for opening the gate, a first limiting pin (205) and a second limiting pin (206) for limiting are installed on the inner side of the housing (1) where the first opening shaft (204) is located, and the first opening shaft (204) is penetrated by a pull pin (208), the pull pin (208) swings inside the first limit pin (205) and the second limit pin (206), one end of the pull pin (208) is provided with a reset spring (203), the other end of the reset spring (203) is connected to a reset pin (207) installed on one side of the shell (1), the reset spring (203) can drive the first opening brake shaft (204) to move to the position before the wrench (201) is pulled down, and one end of the first opening brake shaft (204) is clamped with the second opening brake shaft (503). 3. A magnetically controlled manual opening system according to claim 2, characterized in that: the transmission main shaft (6) is detachably mounted with a plurality of pulling components (8), the pulling components (8) comprising a plurality of main shaft crank arms (801) sleeved on the outside of the transmission main shaft (6), the plurality of main shaft crank arms (801) are all connected with rotatable lifting ears (802), and the lifting ears (802) are all detachably mounted on the end surface of the lower half cover (702). 4. A magnetically controlled manual opening system according to claim 3, characterized in that: an upper half cover (701) is also provided at the position where the magnetically controlled mechanism (7) contacts the permanent magnetic base plate (604), and multiple corners of the permanent magnetic base plate (604) are provided with mechanism support columns (605) for support, and the mechanism support column (605) is located on one side of the lower half cover (702) and is detachably mounted with a mechanism pressure plate (603), and the mechanism pressure plate (603) is provided with a through hole for the longitudinal movement of the lifting ear (802), and a main shaft fixing plate (602) for mounting a transmission main shaft (6) or a control component (5) is detachably mounted on the top of multiple mechanism pressure plates (603). 5. A magnetically controlled manual opening system according to claim 4, characterized in that: a third opening shaft (504) is arranged on one side of the second opening shaft (503), and mutually meshing driving gears (901) are installed on the outer sides of the second opening shaft (503) and the third opening shaft (504), and the third opening shaft (504) is provided with an arc-shaped through hole (501) of the same size as the second opening shaft (503), and the third opening shaft (504) is connected to an auxiliary rotating shaft (9) through an adjusting bolt (502). 6. A magnetically controlled manual opening system according to claim 5, characterized in that: a plurality of first auxiliary gears (601) are sleeved on the outer wall of the transmission main shaft (6), a plurality of second auxiliary gears (903) meshing with the first auxiliary gears (601) are installed on the outer wall of the auxiliary rotating shaft (9), buffer components (10) are arranged on both sides of the first auxiliary gears (601) and the second auxiliary gears (903), and a rotating shaft fixing plate (902) for rotating the auxiliary rotating shaft (9) is detachably installed on the top of the mechanism pressure plate (603). 7. A magnetically controlled manual opening system according to claim 6, characterized in that: the buffer assembly (10) comprises a plurality of insulating connecting plates (1003) detachably mounted on the outer wall of the lower half cover (702), and the end surface of the insulating connecting plate (1003) is detachably mounted with a rack (1002) for reducing the impact of falling, and the first auxiliary gear (601) and the second auxiliary gear (903) are sleeved on both sides with a clamping gear (1001) meshing with the rack (1002). 8. A magnetically controlled manual opening system according to claim 6, characterized in that: an indication component (4) for displaying the opening and closing of the magnetically controlled mechanism (7) is connected to one side of the auxiliary rotating shaft (9), the indication component (4) comprising an indication panel (402) located outside the housing (1) and a rotatable pointer (401), an indication rotating shaft (409) for driving the pointer (401) to rotate is penetrated through the side wall of the housing (1), a warning light (11) is arranged on one side of the indication panel (402), and a switch (1101) for controlling the turning on of the warning light (11) is installed on the inner side wall of the housing (1) at the side where the warning light (11) is located. 9. A magnetically controlled manual opening system according to claim 8, characterized in that: a first driven gear (406) is meshedly connected to one side of the second auxiliary gear (903) close to the indicating assembly (4), the first driven gear (406) is mounted on the outer wall of the gear shaft (407), a positioning block (408) for the gear shaft (407) to rotate is provided at the top of the mechanism pressure plate (603), a second bevel gear (405) is installed on one side of the gear shaft (407), and a first bevel gear (404) meshing with the second bevel gear (405) is provided at one end of the indicating shaft (409). 10. A magnetically controlled manual opening system according to claim 9, characterized in that: a shift fork (403) is sleeved on one side of the indicating shaft (409) located inside the housing (1), and the switch (1101) is located inside a groove where the shift fork (403) is located.