CN219350123U

CN219350123U - Mechanical holding device for magnetic control mechanism

Info

Publication number: CN219350123U
Application number: CN202320333741.6U
Authority: CN
Inventors: 赵振江; 杨文旭; 李大华; 尹永卫; 赵冠桥
Original assignee: Tianjin Hongci Speed Protection Technology Co ltd
Current assignee: Wang Sun
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-07-14
Anticipated expiration: 2033-02-28

Abstract

The application provides a mechanical holding device for a magnetic control mechanism, which comprises an unlocking electromagnet, wherein the unlocking electromagnet is connected with the lower end of a spring pull rod, the upper end of the spring pull rod is rotationally connected with one end of the spring pull rod, the other end of the spring pull rod is connected with one end of a holding wedge block, the other end of the holding wedge block is rotationally connected with the spring pull rod, and the spring pull rod drive the holding wedge block to rotate clockwise or anticlockwise; in the application, if the small gap of the movable iron core and the fixed iron core of the magnetic control mechanism is separated due to factors such as strong vibration and the like in a closing state, so that the attraction force is reduced and the movable iron core cannot be held, the movable iron core can be kept at a closing position by the retaining wedge block, and the false opening operation is not caused; the design of the mechanical holding device is a double-insurance redundancy design which can not cause misoperation, normal electric operation of the magnetic control mechanism can not be influenced, the reliability of the magnetic control switch can be improved, and the magnetic control switch can be applied to special occasions, such as ships and the like.

Description

Mechanical holding device for magnetic control mechanism

Technical Field

The application relates to the technical field of power systems, in particular to a mechanical holding device for a magnetic control mechanism.

Background

The circuit breaker is one of important electrical components in the power system, and can realize the disconnection and the connection of a power system circuit, and a vacuum bubble and a magnetic control mechanism are more common in component parts of the circuit breaker, wherein the vacuum bubble is an electrical component integrating a switching circuit, arc extinction and insulation and is connected with the permanent magnet mechanism through an electrode pull rod of the circuit breaker, so that a movable iron core of the permanent magnet mechanism drives the electrode pull rod to move up and down when moving up and down, and further the connection and the disconnection of the power system circuit are realized; the magnetic control mechanism is a novel switch taking a semi-hard magnetic technology as a core, and is applied to various fields along with the maturation of the semi-hard magnetic material, the switching-on process of the magnetic control mechanism is a process of exciting the semi-hard magnetic material of the iron core through a coil, the magnetism of a movable iron core and a static iron core is kept after excitation, so that the magnetic control mechanism is kept in a switching-on state, the switching-off process is a process of demagnetizing the semi-hard magnetic material of the iron core through the coil, the magnetism is weakened after demagnetization, and the movable iron core is pushed away by a spring; the static attraction of the same structure of the magnetic control mechanism is not different from that of the neodymium-iron-boron magnet at present, but in some specific occasions, such as ships and the like, when the application of vibration is carried out, the problem that the reliability of the magnetic control mechanism is poor compared with that of the neodymium-iron-boron magnet is also solved, and when the vibration is strong, after the moving and static magnets are separated, the inherent characteristic magnetic attraction of the magnetic control mechanism can be quickly reduced and cannot be recovered, so that the magnetic control switch can be directly caused to perform misoperation brake separation.

In the depth fusion switch based on a magnetic control mechanism according to the prior art with the application number of 202122746889.6, a technical scheme is provided, the depth fusion switch comprises a power taking unit 1, wherein the power taking unit 1 is connected with a main power supply 2, the main power supply 2 is respectively connected with a magnetic control driving controller 3 and a terminal control unit 4, the magnetic control driving controller 3 is connected with a magnetic control switch 5, the magnetic control switch 5 comprises a static iron core 6, a movable iron core 7 matched with the static iron core 6 is arranged at the lower part of the static iron core 6, mounting holes 8 are formed in the middle parts of the static iron core 6 and the movable iron core 7, a connecting rod 9 is arranged in the mounting holes 8, a fixing groove 10 is formed in the outer side of the mounting holes 8, an elastic piece 11 is arranged in the fixing groove 10, the elastic piece 11 is sleeved on the outer side of the connecting rod 9, the connecting rod 9 is connected with the movable iron core 7 through a fixing device, a coil 13 is fixed in the static iron core 6, an adsorption groove 14 matched with the static iron core 6 is formed in the movable iron core 7, and the coil 13 is connected with the magnetic control driving controller 3; the static iron core 6 and the movable iron core 7 are made of semi-hard magnetic materials; in the application, when the brake is separated, the movable iron core 7 moves in a direction away from the static iron core 6 under the action of demagnetizing current due to the elastic force of the elastic piece 11 and the reason that part of gravity of the movable iron core 7 is self, so that the magnetic control switch is in a brake separating state; namely, the suction force between the static iron core 6 and the movable iron core 7 disappears, and the separation of the movable iron core 7 and the static iron core 6 is realized based on the reasons of the pushing of the elastic piece 11, a part of gravity of the movable iron core 7 and the like, so that a closing state is realized; in this application rely on the magnetic force between quiet iron core 6 and the movable iron core 7 to realize separating brake and closing a floodgate, but when special occasion runs into powerful vibration, sound magnet can be forced in external force and separate, and sound magnet back can not resume because the inherent characteristics magnetic attraction of magnetic control mechanism can descend fast, directly can cause the magnetic control switch malfunction separating brake.

In summary, a new technical solution is needed to solve the above technical problems.

Disclosure of Invention

The application provides a mechanical holding device for magnetic control mechanism, including the unblock electro-magnet, the unblock electro-magnet is connected with the lower extreme of spring pull rod, and the upper end of spring pull rod is rotated with the one end of elasticity pull rod and is connected, and the other end of elasticity pull rod is connected with the one end that keeps the voussoir, keeps the other end and the spring pull rod of voussoir to be connected, spring pull rod, elasticity pull rod drive keep the voussoir to carry out clockwise or anticlockwise rotation.

The spring pull rod drives the retaining wedge block to move left and right.

As a preferable scheme, the unlocking electromagnet comprises an unlocking static iron core, an unlocking movable iron core is arranged on the upper portion of the unlocking static iron core, and the unlocking movable iron core is connected with the lower end of the spring pull rod.

As a preferable scheme, the spring pull rod comprises a pull rod I connected with the unlocking electromagnet, the upper part of the pull rod I is connected with a moving block, a sliding groove is formed in the moving block, a pull rod II is arranged on the upper part of the moving block, a spring is arranged on the pull rod II, and the pull rod II is connected with the elastic pull rod.

As a preferable scheme, a fixed pin matched with the sliding groove is arranged in the sliding groove, the moving block moves up and down along the fixed pin through the sliding groove, and the fixed pin is rotationally connected with the retaining wedge block.

As a preferable scheme, the spring pull rod, the elastic pull rod and the retaining wedge block are arranged in the static iron core retaining rod, a through groove is formed in one side, close to the movable iron core, of the static iron core retaining rod, and the retaining wedge block moves along the through groove.

As a preferable scheme, the upper end of the static iron core holding rod is connected with the mounting plate, the lower end of the static iron core holding rod is provided with the unlocking electromagnet, and the spring pull rod extends to the unlocking electromagnet through the lower end of the static iron core holding rod.

As a preferable scheme, when the magnetic control mechanism is in a closing state, a gap is reserved between the top of the holding wedge block and the movable iron core.

When the magnetic control mechanism is used, at least one set of magnetic control mechanism is additionally arranged on the periphery of the magnetic control mechanism, after the movable iron core is switched on, the holding wedge blocks are reset to an extending state under the action of the elastic pull rods and the spring pull rods and extend to the lower part of the movable iron core, so that the movable iron core can be ensured to move downwards but be kept at a switching-on position when strong vibration is generated; when the brake is opened, the driver firstly controls the unlocking electromagnet to act, the unlocking movable iron core drives the spring pull rod to move downwards, the elastic pull rod drives the retaining wedge block to rotate anticlockwise, the retaining wedge block is in a retracted state, the action of the movable iron core is not influenced, and the magnetic control mechanism receives a brake opening instruction to act for brake opening, so that normal brake opening operation is performed.

In summary, in the present application, if in the closing state, the small gap of the moving iron core and the fixed iron core of the magnetic control mechanism is separated due to factors such as strong vibration, so that the suction force is reduced and the moving iron core cannot be held, the holding wedge block can keep the moving iron core at the closing position, and the false opening operation is not caused; the design of the mechanical holding device is a double-insurance redundancy design which can not cause misoperation, normal electric operation of the magnetic control mechanism can not be influenced, the reliability of the magnetic control switch can be improved, and the magnetic control switch can be applied to special occasions, such as ships and the like.

Drawings

Fig. 1 is a schematic structural view of a closing hold state of the present application;

FIG. 2 is a schematic view of the structure of the opening and unlocking state of the present application;

FIG. 3 is a schematic view of the structure of the unlocking electromagnet closure of the present application;

fig. 4 is a schematic diagram of a structure of the unlocking electromagnet of the present application;

reference numerals:

1. unlocking electromagnet 2, spring pull rod 3 and elastic pull rod

4. Holding wedge 5, moving core 6, static core

7. Spring piece 8, unlocking static iron core 9 and unlocking movable iron core

10. Mounting hole 11, connecting rod 12, fixing groove 13, elastic piece

14. Clasp 15, coil 16, adsorption groove 17 and mounting plate

18. Pull rod one 19, movable block 20, sliding groove 21 and pull rod two

22. Spring 23, gap 24, static core holding rod

25. Through slot 26, mounting plate 27, fixed pin 28, moving hole.

Detailed Description

The following describes embodiments of the present utility model in detail with reference to fig. 1 to 4. It should be noted that the detailed description herein is presented for purposes of illustration and explanation only and is not intended to limit the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "provided" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiment one:

as shown in fig. 1 and 2, the present embodiment provides a mechanical holding device for a magnetic control mechanism, which includes an unlocking electromagnet 1, wherein the unlocking electromagnet 1 is connected with the lower end of a spring pull rod 2, the upper end of the spring pull rod 2 is rotationally connected with one end of an elastic pull rod 3, the other end of the elastic pull rod 3 is connected with one end of a holding wedge block 4, preferably, the top of the holding wedge block 4 is a plane, and the plane is always kept in a horizontal state and does not change with the rotation of the holding wedge block 4; when the wedge block 4 is kept in the extending state, the top is used for supporting the movable iron core 5; the other end of the holding wedge block 4 is rotationally connected with the spring pull rod 3, and the spring pull rod 2 and the spring pull rod 3 are matched to control the holding wedge block 4 to rotate anticlockwise or clockwise, namely, control the holding wedge block 4 to be in an extending or retracting state; when the electromagnetic mechanism is in a closing state, the movable iron core 5 and the static iron core 6 are in a closing state, the unlocking electromagnet 1 is powered off, the spring pull rod 2 is reset, the elastic pull rod 3 is matched to enable the holding wedge block 4 to be in an extending state, the holding wedge block extends out of the lower portion of the movable iron core 5, when strong vibration is generated, the movable iron core 5 can move downwards, but the electromagnetic mechanism is still in a closing position due to clamping of the holding wedge block 4, and the opening is avoided.

When the brake is opened, the driver firstly controls the unlocking electromagnet 1 to be electrified to drive the spring pull rod 2 to move downwards, and under the pulling of the spring pull rod 3, the holding wedge block 4 rotates anticlockwise to enable the holding wedge block 4 to retract, the action of the movable iron core 5 is not influenced, and the magnetic control mechanism receives a brake opening instruction to move the brake to perform normal brake opening operation.

In the above process, in the closing state, due to factors such as non-opening operation, such as strong vibration, the movable iron core 5 and the static iron core 6 of the magnetic control mechanism are separated from each other in a small gap, so that the suction force is reduced and the movable iron core 5 can be kept at the closing position without causing erroneous opening operation; in this state, the brake is required to be operated, the brake can be opened electrically or manually, the brake can be opened electrically, and the electric brake is not described in detail herein, when the brake is opened manually, the unlocking electromagnet 1 is pulled to move downwards, the holding wedge block 4 is driven to rotate anticlockwise under the action of the spring pull rod 2 and the elastic pull rod 3, and the movable iron core 5 performs brake opening operation under the action force of the brake opening spring.

After the brake-off operation is completed, the movable iron core 5 is positioned at the brake-off position, the wedge block 4 is kept compressed at the unlocking position, and the spring piece 7 on the elastic pull rod 3 is in a compressed state; when the unlocking electromagnet 1 is powered off after the switch-on again, the spring pull rod 2 moves upwards, the holding wedge block 4 rotates clockwise under the action of the spring piece 7, namely moves rightwards, so that the holding wedge block 4 pops up to keep the switch-on position state.

The additional mechanical holding device of the embodiment is of a double-insurance redundancy design which can not cause misoperation of the magnetic control mechanism, the mechanical holding device does not influence normal electric operation of the magnetic control mechanism, and is beneficial to improving reliability of the magnetic control mechanism, and the magnetic control mechanism can be applied to special occasions, such as ships and the like.

Embodiment two:

as shown in fig. 3 and fig. 4, in this embodiment, the unlocking electromagnet 1 is described, specifically, the unlocking electromagnet 1 includes an unlocking static iron core 8, an unlocking movable iron core 9 is disposed at an upper portion of the unlocking static iron core 8, and the unlocking movable iron core 9 is connected to a lower end of the spring pull rod 2; when the power is on, the unlocking movable iron core 9 moves downwards, the spring pull rod 2 is pulled to move downwards, the wedge block 4 is kept to act anticlockwise under the pulling of the elastic pull rod 3 and is in a retracted state, and the movable iron core 5 is not supported; when the power is off, the spring pull rod 2 and the elastic pull rod 3 reset, the holding wedge block 4 rotates clockwise, the holding wedge block 4 is in an extending state and extends to the lower part of the movable iron core 5, the movable iron core 5 is supported, the movable iron core 5 is ensured to move downwards even when strong vibration is generated, but the electromagnetic mechanism is in a closing position due to the clamping connection of the holding wedge block 4.

More specifically, the cross-sectional areas of the two contact surfaces of the unlocking movable iron core 9 and the unlocking static iron core 8 are equal, and the volume of the unlocking movable iron core 9 is equal to the volume of the unlocking static iron core 8; the middle parts of the unlocking static iron core 8 and the unlocking movable iron core 9 are provided with mounting holes 10, connecting rods 11 are arranged in the mounting holes 10, the connecting rods 11 move along the mounting holes 10, and more specifically, the connecting rods 11 drive the unlocking movable iron core 9 to move in a direction approaching to/separating from the static iron core 8; the outer side of the mounting hole 10 is provided with a fixing groove 12, an elastic piece 13 is arranged in the fixing groove 12, the elastic piece 13 is preferably a spring, the elastic piece 13 is sleeved on the outer side of the connecting rod 11, is preferably clamped on the outer side of the connecting rod 11, is clamped by a clamping ring 14, is fixedly connected with the connecting rod 11, and is fixed by welding, bonding and other connecting modes in the prior art; the connecting rod 11 is connected with the unlocking movable iron core 5 through a fixing device, a coil 15 is fixed in the unlocking movable iron core 5, an adsorption groove 16 matched with the unlocking static iron core 8 is formed in the unlocking movable iron core 9, and the adsorption groove 16 is an annular groove; the coil 15 is connected with a magnetic control driving controller, belongs to conventional technical means, and is not modified in any way, and is not described in detail herein; the unlocking static iron core 8 and the unlocking movable iron core 9 are made of semi-hard magnetic materials.

Preferably, in order to facilitate the installation with the installation plane, the bottom of the unlocking static iron core 8 is provided with an installation plate 17, and the middle part of the installation plate is provided with a moving hole 28 for the movement of the connecting rod; the mounting plate 17 and the unlocking static iron core 8 are fixed by a connecting mode which is conventional in the prior art, such as bonding, screw connection and the like.

The specific working principle is as follows: when in closing: under the action of the exciting current, the unlocking movable iron core 9 overcomes the elastic force of the elastic piece 13 and moves towards the direction close to the unlocking static iron core 8, so that the unlocking electromagnet 1 is in a closing state; namely, the attraction force formed between the unlocking movable iron core 9 and the unlocking static iron core 8, and the attraction force is used for completing the attraction of the unlocking static iron core 8 and the unlocking movable iron core 9, so that a closing state is realized;

when the unlocking is performed, the unlocking movable iron core 9 moves in a direction away from the unlocking static iron core 8 under the action of demagnetizing current based on the reasons of the elastic force of the elastic piece 13, part of gravity of the unlocking movable iron core 9 and the like, so that the magnetic control switch is in a brake-separating state; namely, the suction force between the unlocking static iron core 8 and the unlocking movable iron core 9 disappears, and the unlocking movable iron core 9 and the unlocking static iron core 8 are separated based on the reasons of the pushing of the elastic piece 13, a part of gravity of the unlocking movable iron core 9 and the like, so that a closing state is realized; the above-mentioned process is based on the unlocking movable iron core 9 and the unlocking static iron core 8 being semi-hard magnetic controllable magnetic materials, so that the generation and disappearance of magnetism is controlled based on exciting current and demagnetizing current provided by the coil 15.

Embodiment III:

the present embodiment defines the spring tie rod 2, specifically:

the spring pull rod 2 comprises a pull rod I18 connected with the unlocking electromagnet 1, more specifically, the pull rod I18 is connected with an unlocking movable iron core 9 of the unlocking electromagnet 1, the upper part of the pull rod I18 is connected with a moving block 19, a sliding groove 20 is formed in the moving block 19, a pull rod II 21 is formed in the upper part of the moving block 20, a spring 22 is arranged on the pull rod II 21, and the pull rod II 21 is connected with the elastic pull rod 3; more specifically, the sliding groove 20 is provided with a fixing pin 27 matched with the sliding groove, the fixing pin 27 is rotatably connected with the holding wedge 4 through a rotating shaft, a rotating pin and the like, the holding wedge 4 rotates clockwise and anticlockwise along the fixing pin 27, and the moving block 19 moves up and down along the fixing pin 27 through the sliding groove 20, so that the holding wedge 4 is driven to perform clockwise or anticlockwise motion, and the holding wedge 4 is in an extended or retracted state.

The unlocking electromagnet 1 is electrified, the unlocking movable iron core 9 moves downwards, the first pull rod 18, the moving block 19 and the second pull rod 21 move downwards, the holding wedge block 4 rotates anticlockwise under the action of the elastic pull rod 3 and is in a retracted state, and the movable iron core 5 cannot be clamped, so that the brake separating process is realized.

The unlocking electromagnet 1 is powered off, the unlocking movable iron core 9 is separated from the unlocking static iron core 8, the spring pull rod 3 and the elastic pull rod 3 are reset, the wedge block 4 is kept to rotate clockwise, and the wedge block rotates to the lower part of the movable iron core 5, so that the movable iron core 5 can be clamped.

Preferably, in the closing state of the magnetic control mechanism, a gap 23 is formed between the top of the holding wedge block 4 and the movable iron core 5, and the gap 23 can maintain the basic contact pressure of the electrical performance of the vacuum arc extinguishing chamber of the magnetic control switch.

Embodiment four:

the present embodiment provides a specific application, specifically:

the spring pull rod 2, the elastic pull rod 3 and the retaining wedge 4 are arranged in the static iron core retaining rod 24, a through groove 25 is formed in one side of the static iron core retaining rod 24, which is close to the movable iron core 5, the retaining wedge 4 moves left and right along the through groove 25, namely stretches out or retracts back to the through groove 25, the electromagnetic mechanism is in a closing state when stretching out, and the electromagnetic mechanism is arranged at the lower part of the movable iron core 5, so that when strong vibration is generated, the movable iron core 5 moves downwards, the movable iron core 5 is clamped, and the movable iron core 5 is still kept at the closing position; when the electromagnetic mechanism is retracted, the electromagnetic mechanism is in a brake-separating state, and the movement of the movable iron core 5 is not influenced, so that the electromagnetic mechanism can smoothly realize brake separation.

More preferably, the upper end of the static iron core holding rod 24 is connected with the mounting plate 26, the static iron core holding rod 24 is connected with the mounting plate 26 by bonding, welding, screw connection and other well-known connection modes, the lower end of the static iron core holding rod 24 is provided with the unlocking electromagnet 1, the elastic pull rod 3 extends to the unlocking electromagnet 1 through the lower end of the static iron core holding rod 24, that is, the elastic pull rod 3 is connected with the unlocking movable iron core 9 of the unlocking electromagnet 1 through the lower end of the static iron core holding rod 24.

The unlocking electromagnet 1 and the magnetic control mechanism can be controlled by one magnetic control driving controller or by two magnetic control driving controllers respectively, and a technician can select correspondingly according to specific conditions, so that the unlocking electromagnet belongs to a conventional technical means, and the unlocking electromagnet is not improved and is not described in detail herein.

When the magnetic control mechanism is used, at least one set of magnetic control mechanism is additionally arranged on the periphery of the magnetic control mechanism, after the movable iron core 5 is switched on, the holding wedge block 4 is reset to an extending state under the action of the elastic pull rod 3 and the spring pull rod 2 and extends to the lower part of the movable iron core 5, so that the movable iron core 5 can be ensured to move downwards but is kept at a switching-on position when strong vibration is generated; when the brake is opened, the driver firstly controls the unlocking electromagnet 1 to act, the unlocking movable iron core 9 drives the spring pull rod 2 to move downwards, so that the elastic pull rod 3 drives the holding wedge block 4 to rotate anticlockwise, the action of the movable iron core 5 is not influenced, and the magnetic control mechanism receives a brake opening instruction to act for brake opening, so that normal brake opening operation is performed.

In the description provided herein, numerous specific details are set forth; it is understood, however, that embodiments of the utility model may be practiced without these specific details, and in some instances, well-known methods, structures, and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the utility model, various features of the utility model are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects; however, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed utility model requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this utility model.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The utility model may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, etc. do not denote any order. These words may be interpreted as names.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the foregoing embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations of the present utility model are not described in detail.

Moreover, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which is also to be considered as disclosed herein.

Claims

1. The utility model provides a mechanical holding device for magnetic control mechanism, its characterized in that, includes unblock electro-magnet (1), unblock electro-magnet (1) are connected with the lower extreme of spring pull rod (2), and the upper end of spring pull rod (2) is rotated with the one end of elasticity pull rod (3) and is connected, and the other end of elasticity pull rod (3) is connected with the one end that keeps voussoir (4), keep the other end of voussoir (4) with spring pull rod (2) are connected, spring pull rod (2), elasticity pull rod (3) drive keep voussoir (4) and carry out clockwise or anticlockwise rotation.

2. A mechanical holding device for a magnetic control mechanism according to claim 1, characterized in that the unlocking electromagnet (1) comprises an unlocking stationary core (8), an unlocking movable core (9) is arranged at the upper part of the unlocking stationary core (8), and the unlocking movable core (9) is connected with the lower end of the spring pull rod (2).

3. A mechanical holding device for a magnetic control mechanism according to claim 1, characterized in that the spring pull rod (2) comprises a pull rod one (18) connected with the unlocking electromagnet (1), a moving block (19) is connected to the upper part of the pull rod one (18), a sliding groove (20) is arranged on the moving block (19), a pull rod two (21) is arranged on the upper part of the moving block (19), a spring (22) is arranged on the pull rod two (21), and the pull rod two (21) is connected with the elastic pull rod (3).

4. A mechanical holding device for a magnetic control mechanism according to claim 3, characterized in that the sliding groove (20) is provided with a fixing pin (27) cooperating with the sliding groove, the moving block (19) moves up and down along the fixing pin (27) through the sliding groove (20), and the fixing pin (27) is rotatably connected with the holding wedge block (4).

5. A mechanical holding device for a magnetic control mechanism according to claim 1, characterized in that the spring pull rod (2), the spring pull rod (3) and the holding wedge block (4) are arranged in a static iron core holding rod (24), a through groove (25) is arranged on one side of the static iron core holding rod (24) close to the movable iron core (5), and the holding wedge block (4) moves along the through groove (25).

6. A mechanical holding device for a magnetic control mechanism according to claim 5, characterized in that the upper end of the stationary core holding rod (24) is connected with a mounting plate (26), the lower end of the stationary core holding rod (24) is provided with the unlocking electromagnet (1), and the spring tie rod (2) extends onto the unlocking electromagnet (1) through the lower end of the stationary core holding rod (24).

7. A mechanical holding device for a magnetic control mechanism according to claim 1, characterized in that a gap (23) is provided between the top of the holding wedge (4) and the moving core (5) when the magnetic control mechanism is in the closed state.