CN117967158A - Explosion-proof, dust-proof and water-proof electric door stopper and manufacturing process thereof - Google Patents

Abstract

The invention belongs to the technical field of electromagnetic door stopper, and discloses an explosion-proof, dust-proof and water-proof electromagnetic door stopper and a manufacturing process thereof. The switch of electromagnetic door stopper is conveniently fed back through the spring column, the first prompting board and the second prompting board, and the electromagnetic door stopper is convenient to use.

Description

Explosion-proof, dust-proof and water-proof electric door stopper and manufacturing process thereof

Technical Field

The invention belongs to the technical field of electromagnetic door stopper, and particularly relates to an explosion-proof, dust-proof and water-proof electromagnetic door stopper and a manufacturing process thereof.

Background

The electromagnetic door stopper is an electromagnet applied to an automatic door, and is a door body positioning device which adopts an electromagnetic principle to generate suction force, and is produced by domestic enterprises only in 2000, and because the electromagnetic door stopper has a simple mechanical structure, reliable electromagnetic principle and low-voltage microcurrent operation, the service life of the electromagnetic door stopper can reach decades or even hundreds of years, and is different from the common door stopper manual control characteristics adopting a permanent magnet, the electromagnetic door stopper can only work after being provided with DC24V, can be manually controlled on site and remotely electrically controlled, and is widely applied to intelligent door control facilities of buildings, and is mainly used for normally opening in buildings, in a normally-powered state (DC 24V), the electromagnet arranged on a wall surface or the ground generates a magnetic field to suck a suction plate arranged on a door leaf, so that the operating power supply of the electromagnetic door stopper is cut off, the electromagnet is demagnetized when in fire, the electromagnetic door stopper is automatically closed under the action of a door stopper, and a group of contact signals is fed back to the control chamber.

In the prior art, the normal switch of the electromagnetic door stopper is not beneficial to feedback, so that the electromagnetic door stopper is inconvenient to use.

Disclosure of Invention

Aiming at the problem that the normal switch of the electromagnetic door stopper is unfavorable for feedback in the prior art, so that the electromagnetic door stopper is inconvenient to use, the invention provides the following technical scheme: the utility model provides an explosion-proof dustproof waterproof electromagnetic door stopper, including preceding adjustable support, the bottom screw rod of preceding adjustable support is connected with armature, the bottom of armature is provided with the shell, the inside of shell is provided with the iron core, shell top inside threaded connection has the closing cap, closing cap board middle part and iron core threaded connection, the inside fixedly connected with bullet post in iron core top, the cavity has been seted up at the iron core middle part, the cavity inside is provided with fixed spring, the fixed spring bottom is provided with connecting switch, the outside of iron core is provided with the coil, shell bottom threaded connection has the bottom plate, the inside gram head that is provided with of bottom plate, gram head and shell bottom threaded connection, the coil is connected with the power cord through gram head gram, the iron core top is opened and is provided with the mounting groove, bullet post external surface fixedly connected with movable plate, movable plate one end articulates there is the movable rod, movable rod one end articulates there is the movable block, movable block one side fixedly connected with extruding rod, extruding rod one side is provided with a first suggestion board, first suggestion board one side fixedly connected with connecting spring, connecting spring one end fixedly connected with connecting plate, connecting plate and closing cap board threaded connection, connecting rod bottom fixedly connected with connecting rod, connecting rod bottom is connected with first rack, first rack and first rack is meshed with first rack and second rack, first rack and second rack is meshed with first rack.

As the preference of above-mentioned technical scheme, closing cap board inner circle all is provided with the screw thread with the outer lane, and the closing cap board inner wall is seted up flutedly, and the inside of recess is provided with first rubber ring, and the top of bullet post is laminated mutually with armature, and the coil is located closing cap board bottom, and coil and iron core bottom outside are provided with the second rubber ring, and the iron core bottom is located inside the second rubber ring.

As the preference of above-mentioned technical scheme, the power cord passes the shell and extends to the bottom plate bottom, and the gram head is located between bottom plate and the shell, and movable groove has been seted up to the closing cap inboard, and the movable plate both ends pass the mounting groove and extend to the movable inslot portion, and the movable rod is located the movable block bottom, and movable rod and movable block set up with movable block central symmetry, movable block and the inside sliding connection of movable groove.

As the preference of above-mentioned technical scheme, the extruding rod passes the closing cap board and extends to inside the shell, and the extruding rod surface cover is equipped with compression spring, compression spring one end and movable block fixed connection, the other end and movable groove inner wall fixed connection, extruding rod one end and laminating of first suggestion board one side, and the fixed slot has been seted up to first suggestion board one side, and two second telescopic links of fixed slot inside fixedly connected with, two second telescopic link one end and closing cap board threaded connection, two closing cap boards are located between extruding rod and the connecting spring.

As the preference of above-mentioned technical scheme, two removal mouths have all been seted up to the both sides surface of shell, and first suggestion board is located and removes mouthful inside, and the second suggestion board passes to remove mouthful and extends to the shell outside, and the connecting rod is located the extrusion stem and is close to first suggestion board one end, and first rack, second rack and gear are located inside the shell, and gear middle part fixedly connected with axis of rotation, axis of rotation both ends all rotate and are connected with the mount, mount one end and closing cap board fixed connection.

As the preference of above-mentioned technical scheme, movable rod is articulated to movable block bottom one end, and movable rod middle part articulates there is the slider, and the spout has been seted up to movable groove inner wall, slider and spout sliding connection, and movable rod one end is provided with the supporting shoe, and the supporting shoe passes movable groove and extends to the closing cap board middle part.

As the preference of above-mentioned technical scheme, the supporting shoe includes the fixed plate, and fixed plate one side is articulated with the movable rod, and its opposite side fixedly connected with third telescopic link, third telescopic link one end fixedly connected with backup pad, backup pad one side fixedly connected with equidistance distribution's first circular protruding.

As the preference of above-mentioned technical scheme, backup pad one side fixedly connected with dead lever, dead lever one end runs through the dead plate and extends to the activity inslot portion, and fixed quantity has two, and the dead lever is located the third telescopic link both sides.

As the preference of above-mentioned technical scheme, slider top fixedly connected with catch bar, the catch bar top is the second circle protruding, and spout top just is located the inside extrusion piece that is provided with of movable groove, and the one end that the extrusion piece is close to the spout is the inclined plane, extrusion piece one side fixedly connected with stripper plate, stripper plate one side just is located extrusion piece top fixedly connected with buffer spring, buffer spring one end and movable groove inner wall fixed connection.

The invention also provides a process for using the explosion-proof, dust-proof and water-proof electromagnetic door stopper, which comprises the following steps,

Step one: the method comprises the steps that firstly, an iron core is fixed inside a sealing plate, the iron core is connected with a shell through threads of an outer ring of the sealing plate, M threads with a thread clearance not smaller than 5 buckles are adopted, the cover plate and the shell are required to be provided with a certain strength, the sealing plate is screwed, M threads with the threads not smaller than 6 buckles are respectively arranged on an inner ring and an outer ring of the sealing plate, the thickness of the sealing plate is equal to the width of a groove of a corresponding thread of the shell, a first rubber ring with the same size and the same diameter as the groove is arranged in the groove, the first rubber ring is compacted, a protection structure is formed, the sealing plate and the iron core are fixed inside the shell, a front adjustable bracket is fixed with an armature through a screw, a gram head is screwed with the bottom of the shell, the M threads with the threads not smaller than 5 buckles are adopted, the gram head is screwed with the bottom of the shell, the coil is connected with a power line through the gram head, an accessory used for wiring is an accessory meeting the explosion-proof requirement, an internal sealing device is integrally formed, an IP65 level dustproof device can be achieved, meanwhile, the connection between the components is connected with the components through the threads, and then the internal space is compressed, the electric shock-proof performance is reduced, and the internal spark and explosion-proof performance is greatly influenced when the internal contact and explosion-proof performance is required to be brought, and the internal contact and explosion-proof performance is reduced, and the spark contact probability is achieved;

Step two: then the sealing device is sealed by adopting a double-thread structure through the sealing cover plate, then a sealing rubber ring is additionally arranged between the shell and the gram head, between the shell and the sealing cover plate, and between the iron core and the sealing cover plate, so that a protection structure connecting plate is formed, sealing is kept, the dustproof and waterproof functions are achieved, the connecting plate is connected with the sealing cover plate through threads, one end of a first telescopic rod is connected with the sealing cover plate through threads, so that the first prompting plate is fixed on the outer side of the sealing cover plate, one end of a second prompting plate is connected with one end of a second rack through threads, so that the second prompting plate is fixed with the second rack, and the second prompting plate is fixed on the outer side of the shell;

Step three: then, a power supply is connected, so that the coil is electrified, the iron core is magnetized, a magnetic field is generated, the iron core is contacted with the armature, the effect of fixing the door is achieved, meanwhile, the spring column is extruded, the spring column drives the moving plate to move downwards, the moving rod is rotated to push the moving block to move, the compression spring is compressed, the extruding rod is enabled to move towards the outside of the sealing cover plate, the extruding rod is enabled to push the first prompting plate to move towards the outside of the shell, meanwhile, the extruding rod is enabled to move to drive the first rack to move, the gear is enabled to rotate, the second rack is enabled to drive the second prompting plate to move into the inside of the shell, and people are prompted to fix the door through electromagnetic door attraction and adsorption through the first prompting plate;

step four: and finally, when the movable block moves, the movable rod rotates, the sliding block moves upwards in the sliding groove, one end of the movable rod rotates to enable the fixed plate to rotate with the supporting plate to be parallel to the iron core, the sliding block moves to drive the pushing rod to move upwards, the second round boss at the bottom of the pushing rod moves along the inclined plane of the extrusion block to extrude the extrusion block, the buffer spring stretches, the pushing plate moves towards the iron core, the fixed rod is pushed to drive the supporting plate to move, the third telescopic rod stretches, the first round boss at one side of the supporting plate is attached to the iron core, and accordingly the two sides of the iron core are supported and fixed through the supporting plate and the first round boss, so that the stability of the contact between the iron core and the armature is increased.

The beneficial effects of the invention are as follows:

(1) According to the electromagnetic door stopper, when the power line is damaged, the elastic column, the first prompting plate and the second prompting plate are used for feeding back the error opening and closing of the electromagnetic door stopper conveniently, so that the electromagnetic door stopper is convenient to use;

(2) According to the invention, when the spring column is extruded, the movable plate moves, and under the action of the sliding block and the movable rod, the supporting plate and the second round boss support and fix the two sides of the iron core, so that the contact stability of the iron core and the armature is improved conveniently.

Drawings

FIG. 1 is a front view showing the overall structure of the embodiment;

FIG. 2 is a schematic view showing the internal structure of the case of the embodiment;

Fig. 3 is a schematic structural view of an embodiment core;

FIG. 4 is a schematic view showing the internal structure of the closure panel of the embodiment;

FIG. 5 is a schematic view showing the structure of a first tip plate according to the embodiment;

FIG. 6 is a schematic structural view of a second indicator panel according to the embodiment;

Fig. 7 shows a schematic structural view of the support plate of the embodiment.

In the figure: 1. a front adjustable bracket; 2. an armature; 3. a housing; 4. an iron core; 5. a cover plate; 6. a spring column; 7. a coil; 8. a bottom plate; 9. a gram head; 10. a power line; 11. a moving plate; 12. a moving rod; 13. a moving block; 14. an extrusion rod; 15. a first prompting board; 16. a connecting spring; 17. a connecting rod; 18. a first rack; 19. a gear; 20. a second rack; 21. a second prompting board; 22. a first telescopic rod; 23. a first rubber ring; 24. the second rubber ring; 25. a second telescopic rod; 26. a movable rod; 27. a slide block; 28. a support block; 281. a fixing plate; 282. a third telescopic rod; 283. a support plate; 284. a first circular protrusion; 285. a fixed rod; 29. a push rod; 30. extruding a block; 31. and extruding the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.

The invention provides an explosion-proof, dust-proof and water-proof electromagnetic door stopper, as shown in figures 1-6, which comprises a front adjustable bracket 1, wherein an armature 2 is connected with a screw rod at the bottom of the front adjustable bracket 1, a housing 3 is arranged at the bottom of the armature 2, an iron core 4 is arranged inside the housing 3, a cover plate 5 is connected with the inner thread of the top end of the housing 3, the middle part of the cover plate 5 is connected with the iron core 4 in a threaded manner, a spring column 6 is fixedly connected with the inner part of the top end of the iron core 4, a cavity is arranged in the middle part of the iron core 4, a fixed spring is arranged inside the cavity, a connecting switch is arranged at the bottom of the fixed spring, a coil 7 is arranged outside the iron core 4, a bottom plate 8 is connected with the bottom of the housing 3 in a threaded manner, a gram head 9 is connected with the bottom of the housing 3 in a threaded manner, the coil 7 is connected with a power wire 10 through the gram head 9, the iron core 4 top is opened and is provided with the mounting groove, bullet post 6 surface fixedly connected with movable plate 11, movable plate 11 one end articulates there is movable rod 12, movable rod 12 one end articulates there is movable block 13, movable block 13 one side fixedly connected with extrusion rod 14, extrusion rod 14 one side is provided with first suggestion board 15, first suggestion board 15 one side fixedly connected with coupling spring 16, coupling spring 16 one end fixedly connected with connecting plate, connecting plate and closing cap board 5 threaded connection, extrusion rod 14 bottom fixedly connected with connecting rod 17, connecting rod 17 bottom fixedly connected with first rack 18, first rack 18 bottom meshing has gear 19, gear 19 bottom meshing has second rack 20, second rack 20 one side threaded connection has second suggestion board 21, second rack 20 bottom fixedly connected with first telescopic link 22.

The front adjustable bracket 1 is connected with the armature 2, so that the front adjustable bracket 1 can effectively and stably contact the armature 2, and is acted by tensile force, the armature is not unstable when stressed, an explosion-proof contact surface is formed by adopting a threaded connection mode between the shell 3 and the gram head 9, between the shell 3 and the cover plate and between the shell 3 and the core 4 and between the core 4 and the cover plate, M threaded connection of not less than 5 buckles is adopted, the gap between the shell 3 and the core 4 is not more than 0.5mm, the cover plate 5 and the shell 3 have certain strength, particularly the threaded connection is adopted, the design life is 5 years under the condition of not dismantling, so that the armature is convenient to use, the shell 3 and the core 4 are formed by mechanical processing of high-permeability metal (mainly iron for electromagnets), the top of the shell 3 and the iron core 4 are provided with M internal threads which are not lower than 5 buckles, the back of the threads is provided with a groove with the width of 1-1.5 buckles and the same depth of the threads, the design life is 5 years, the shell 3 and the gram head 9, the shell 3 and the cover plate, and the iron core 4 and the cover plate are additionally provided with sealing rubber rings to form a protective structure, the internal air gap of the electromagnetic door stopper is reduced to the minimum through accurate measurement, the whole length of the device is shortened as far as possible, meanwhile, the influence caused by static electricity and spark generated by electrifying is reduced, the iron core 4 and the shell 3 act as a structure for enhancing magnetic force, and the iron core 4 is also a main frame for explosion protection, when spark occurs, the internal and external contact needs to pass through the explosion-proof contact surface of the threads, so the explosion-proof function cannot be transmitted out, the whole length of the device can be shortened, the magnetic force can be enhanced, the coil 7 is electrified through the power line 10 and then the iron core 4 is magnetized, a magnetic field is generated simultaneously, the coil is convenient to fix after being contacted with the armature 2, thereby the explosion-proof function is realized, when the iron core 4 is contacted with the armature 2, the spring column 6 is extruded and contracted, the spring column 6 drives the moving plate 11 to move downwards, the moving rod 12 rotates to push the moving block 13 to move, the moving block 13 pushes the extruding rod 14 to move towards the outside of the sealing plate 5, the second telescopic rod 25 stretches, the connecting spring 16 stretches, the first prompting plate 15 moves to the outside of the shell 3, the extruding rod 14 drives the connecting rod 17 to move with the first rack 18, the gear 19 rotates, the second rack 20 drives the second prompting plate 21 to move to the inside of the shell 3, thereby the electromagnetic door-opening and closing switch is fed back through the first prompting plate 15 and the second prompting plate 21, when the power line 10 is damaged, the coil 7 is not powered enough, the iron core 4 and the armature 2 are not contacted with each other, the electromagnetic door-closing switch is convenient for the first prompting plate 15 is completely opened and the electromagnetic door-closing state is not needed, and the electromagnetic door-closing state is convenient for the electromagnetic door-opening and the electromagnetic door-closing state is not completely carried out when the electromagnetic door-closing state is completely opened.

As shown in fig. 1-4, the inner ring and the outer ring of the cover plate 5 are both provided with threads, the inner wall of the cover plate 5 is provided with a groove, the inside of the groove is provided with a first rubber ring 23, the top of the spring column 6 is attached to the armature 2, the coil 7 is positioned at the bottom of the cover plate 5, the coil 7 and the bottom end of the iron core 4 are externally provided with a second rubber ring 24, and the bottom end of the iron core 4 is positioned inside the second rubber ring 24.

The sealing plate 5 is used for sealing the device by adopting a double-thread structure, the structure can shorten the overall length of the device and strengthen magnetic force, rubber rings with the same size and diameter as those of the grooves are placed in the grooves, the sealing plate 5 is screwed tightly, the rubber rings are compacted to form a protective structure, and the protective grade IP65 of the protective structure is convenient to improve the protection of the sealing plate 5 on the iron core 4.

As shown in fig. 1-4, the power cord 10 extends to the bottom of the bottom plate 8 through the casing 3, the gram head 9 is located between the bottom plate 8 and the casing 3, the movable groove is formed in the cover plate 5, two ends of the movable plate 11 extend to the movable groove through the mounting groove, the movable rod 12 is located at the bottom of the movable block 13, the movable rod 12 and the movable block 13 are symmetrically arranged with the movable block 13 being centered, and the movable block 13 is slidably connected with the movable groove.

The power line 10 of the coil 7 adopts a cable, the cable is led to the outside of the shell 3 through the gram head 9, the gram head 9 meets the requirement of GB/T3836, and explosion proof authentication is passed, thereby the explosion proof performance of the electromagnetic door stopper is improved, the sealing cover plate 5 is a circular ring formed by machining non-magnetic metal (stainless steel, copper, aluminum and the like), the inner ring and the outer ring of the sealing cover plate 5 are respectively provided with M threads which are not lower than 6 buckles, the thickness of the cover plate is equal to the width of the corresponding threads and grooves of the shell 3, the design service life of the sealing cover plate is 5 years, thereby the protection function of the sealing cover plate 5 is improved, the accessory used by the power line 10 is an accessory meeting the explosion proof requirement, an internal sealing device is integrally formed, the IP65 level dustproof and waterproof can be achieved, thereby the electromagnetic door stopper realizes the dustproof and waterproof function, the moving rod 12 in the movable groove is rotated, the moving block 13 is pushed to move conveniently, and the moving rod 12 and the moving block 13 are arranged symmetrically, thereby the first prompting plate 15 moves to the two sides of the shell 3, and the electromagnetic door stopper switch is convenient to feed back.

As shown in fig. 1,2 and 5, the extrusion rod 14 passes through the sealing cover plate 5 and extends to the inside of the shell 3, a compression spring is sleeved on the outer surface of the extrusion rod 14, one end of the compression spring is fixedly connected with the moving block 13, the other end of the compression spring is fixedly connected with the inner wall of the movable groove, one end of the extrusion rod 14 is attached to one side of the first prompting plate 15, a fixed groove is formed in one side of the first prompting plate 15, two second telescopic rods 25 are fixedly connected in the fixed groove, one end of each second telescopic rod 25 is in threaded connection with the sealing cover plate 5, and the two sealing cover plates 5 are located between the extrusion rod 14 and the connecting spring 16.

The extrusion rod 14 moves to enable the compression spring to shrink, and because one side of the extrusion rod 14 is attached to the first prompting board 15, the connection spring 16 and the first prompting board 15 are connected with the cover board 5 through the connecting board, when the extrusion rod 14 moves to enable the first prompting board 15 to move, the second telescopic rod 25 inside the fixed groove stretches, the connection spring 16 stretches, the first prompting board 15 moves to the outside of the shell 3, and prompt feedback is facilitated.

As shown in fig. 4-5, two moving ports are respectively formed on the outer surfaces of two sides of the casing 3, the first prompting board 15 is located inside the moving ports, the second prompting board 21 extends to the outside of the casing 3 through the moving ports, the connecting rod 17 is located at one end of the extrusion rod 14, which is close to the first prompting board 15, the first rack 18, the second rack 20 and the gear 19 are located inside the casing 3, a rotating shaft is fixedly connected to the middle of the gear 19, fixing frames are rotatably connected to two ends of the rotating shaft, and one end of each fixing frame is fixedly connected with the sealing cover board 5.

When the first prompting board 15 moves to the outside of the shell 3 through the moving opening, the second prompting board 21 moves to the inside of the shell 3 through the moving opening, the electromagnetic door stopper is in an open state, when the first prompting board 15 is positioned in the inside of the shell 3, the second prompting board 21 is positioned outside the shell 3, the electromagnetic door stopper is in a closed state, the first rack 18 and the extrusion rod 14 are connected through the connecting rod 17 conveniently, the first rack 18 is driven to move through the movement of the extrusion rod 14, the gear 19 is driven to rotate, the second rack 20 moves to drive the second prompting board 21 to move, the gear 19 is fixed through the fixing frame and the rotating shaft conveniently, and the gear 19 is kept stable.

As shown in fig. 5 and 7, one end of the bottom of the moving block 13 is hinged with a moving rod 26, the middle part of the moving rod 26 is hinged with a sliding block 27, the inner wall of the moving groove is provided with a sliding groove, the sliding block 27 is in sliding connection with the sliding groove, one end of the moving rod 26 is provided with a supporting block 28, and the supporting block 28 penetrates through the moving groove and extends to the middle part of the cover plate 5.

When the movable block 13 moves, the movable rod 26 is rotated, the sliding block 27 moves upwards, the supporting block 28 at one end of the movable rod 26 is driven to rotate, the supporting block 28 rotates to be in a horizontal state with the iron core 4, and therefore when the supporting block 28 is pushed to move, the movable rod can be attached to the iron core 4, and the iron core 4 is supported and fixed.

As shown in fig. 7, the supporting block 28 includes a fixing plate 281, one side of the fixing plate 281 is hinged to the movable rod 26, the other side of the fixing plate 281 is fixedly connected with a third telescopic rod 282, one end of the third telescopic rod 282 is fixedly connected with a supporting plate 283, one side of the supporting plate 283 is fixedly connected with a first round protrusion 284 distributed at equal intervals, one side of the supporting plate 283 is fixedly connected with a fixing rod 285, one end of the fixing rod 285 penetrates through the fixing plate 281 and extends into the movable groove, two fixed numbers are provided, the fixing rods 285 are located on two sides of the third telescopic rod 282, the top of the sliding block 27 is fixedly connected with a pushing rod 29, the top of the pushing rod 29 is a second round protrusion, the top of the sliding groove is provided with a pressing block 30 located in the movable groove, one end, close to the sliding groove, of the pressing block 30 is an inclined surface, one side of the pressing block 30 is fixedly connected with a pressing plate 31, one side of the pressing plate 31 is fixedly connected with a buffer spring located on the top of the pressing block 30, and one end of the buffer spring is fixedly connected with the inner wall of the movable groove.

When the movable rod 26 rotates, the movable rod 26 is fixedly rotated, so that the third telescopic rod 282, the fixed rod 285 and the supporting plate 283 are driven to rotate to be in a horizontal state, the supporting plate 283 drives the first round boss 284 to be parallel to the iron core 4, when the sliding block 27 moves upwards, the pushing rod 29 is driven to move upwards, as the top of the pushing rod 29 is a second round boss, one side of the extruding block 30 is an inclined plane, when the pushing rod 29 drives the second round boss to move, the second round boss moves along the inclined plane, the extruding block 30 is extruded, the buffer spring stretches, the extruding block 30 drives the extruding plate 31 to push the fixed rod 285 to move with the supporting plate 283, the third telescopic rod 282 stretches, and the supporting plate 283 drives the second round boss to move to be attached to two sides of the iron core 4, so that the iron core 4 keeps stable.

The invention also provides a process for using the explosion-proof, dust-proof and water-proof electromagnetic door stopper, which comprises the following steps,

Step one: firstly, an iron core 4 is fixed inside a cover plate 5, the iron core is connected with a shell 3 through threads on the outer ring of the cover plate 5, M threaded connections with no less than 5 buckles are adopted, a thread gap is no more than 0.5mm, a cover plate and a shell are required to have certain strength, the cover plate 5 is screwed, M threads with no less than 6 buckles are respectively arranged on the inner ring and the outer ring of the cover plate 5, the thickness of the cover plate 5 is equal to the width of a groove formed on corresponding threads of the shell 3, a first rubber ring 23 with the same size and diameter as the groove is arranged in the groove, the first rubber ring 23 is compacted, a protective structure is formed, the cover plate 5 and the iron core 4 are fixed inside the shell 3, a front adjustable bracket 1 is connected with an armature 2 through a screw rod, a gram head 9 is connected with the bottom of the shell 3 through M threads with no less than 5 buckles, the cover plate 8 is screwed with the bottom of the shell 3, a coil 7 is connected with a power wire 10 through the gram head 9, the accessory used for wiring is an accessory meeting the explosion-proof requirement, an internal sealing device can be integrally formed, an internal IP65 can be connected with an explosion-proof component through the threads, and simultaneously, the internal explosion-proof performance can be reduced, and the internal explosion-proof performance can not be brought by the compression performance can be achieved through the compression performance of the internal explosion-proof door, and the internal explosion-proof performance can not be simultaneously, and the internal explosion-proof performance can be brought, and the internal-proof performance can be contacted with the internal explosion-proof performance can be simultaneously, and the internal-proof performance can be easily when the internal-proof device is brought and the internal device;

Step two: then the sealing device is sealed by adopting a double-thread structure through the sealing plate 5, then a sealing rubber ring is additionally arranged between the shell 3 and the gram head 9, between the shell 3 and the sealing plate 5, and between the iron core 4 and the sealing plate 5, so that a protection structure connecting plate is formed, sealing is kept, the dustproof and waterproof functions are achieved, the connecting plate is connected with the sealing plate 5 through threads, one end of a first telescopic rod 22 is connected with the sealing plate 5 through threads, so that a first prompting plate 15 is fixed on the outer side of the sealing plate 5, one end of a second prompting plate 21 is connected with one end of a second rack 20 through threads, so that the second prompting plate 21 is fixed with the second rack 20, and the second prompting plate 21 is fixed outside the shell 3;

Step three: then, a power supply is connected, so that the coil 7 is electrified, the iron core 4 is magnetized, a magnetic field is generated at the same time, the iron core 4 is contacted with the armature 2, the effect of fixing a door is achieved, meanwhile, the spring column 6 is extruded, the spring column 6 drives the moving plate 11 to move downwards, the moving rod 12 rotates to push the moving block 13 to move, the compression spring compresses, the extrusion rod 14 moves towards the outside of the sealing cover plate 5, the extrusion rod 14 pushes the first prompting plate 15 to move towards the outside of the shell 3, meanwhile, the extrusion rod 14 moves to drive the first rack 18 to move, the gear 19 rotates, the second rack 20 drives the second prompting plate 21 to move into the shell 3, and people are prompted to fix the door through electromagnetic door absorption through the first prompting plate 15;

Step four: finally, when the moving block 13 moves, the movable rod 26 rotates, the sliding block 27 moves upwards in the sliding groove, one end of the movable rod 26 rotates, the fixed plate 281 and the supporting plate 283 rotate to be parallel to the iron core 4, the sliding block 27 moves and drives the pushing rod 29 to move upwards, the second round boss at the bottom of the pushing rod 29 moves along the inclined plane of the extruding block 30, the extruding block 30 is extruded, the buffer spring stretches, the pushing plate moves towards the iron core 4, the fixed rod 285 drives the supporting plate 283 to move, the third telescopic rod 282 stretches, the first round boss 284 on one side of the supporting plate 283 is attached to the iron core 4, and accordingly the two sides of the iron core 4 are supported and fixed through the supporting plate 283 and the first round boss 284, and the contact stability of the iron core 4 and the armature 2 is convenient to increase.

Working principle: when in use, the front adjustable bracket 1 is connected with the armature 2 through bolts, the front adjustable bracket is connected with the shell 3 through threads on the outer ring of the cover plate 5, the cover plate 5 is screwed, the first rubber ring 23 is compacted, a protective structure is formed, the inner ring of the front adjustable bracket is screwed with the iron core 4, the cover plate 5 and the iron core 4 are fixed inside the shell 3, the spring column 6 is abutted against the bottom of the armature 2, the gram head 9 is screwed with the bottom of the shell 3 and fixed with the bottom of the shell 3, the bottom plate 8 is screwed with the bottom of the shell 3 through threads, the coil 7 is connected with the power wire 10 through the gram head 9, the first telescopic rod 22 is connected with the cover plate 5 through threads, the first prompting plate 15 is fixed on the outer side of the cover plate 5, the second prompting plate 21 is connected with the second rack 20 through threads, the second prompting plate 21 is fixed with the second rack 20, the second prompting board 21 is fixed outside the shell 3, the power supply is conducted through the power line 10, the coil 7 is electrified, the iron core 4 is magnetized, a magnetic field is generated, the iron core 4 is contacted with the armature 2, the fixed door is realized, the spring column 6 is extruded, the spring column 6 drives the moving board 11 to move downwards, the moving rod 12 rotates to push the moving block 13 to move, the compression spring is compressed, the extruding rod 14 moves towards the outside of the cover board 5, the extruding rod 14 pushes the first prompting board 15 to move towards the outside of the shell 3, the extruding rod 14 moves to drive the first rack 18 to move, the gear 19 rotates, the second rack 20 drives the second prompting board 21 to move into the shell 3, after the spring column is extruded, the fixed spring is extruded, the force is transmitted to the connecting switch through the fixed spring, the connecting switch is communicated, a door opening signal is sent, so that the electromagnetic door stopper is in an open state, and people are prompted by the first prompting board 15 to fix the door through electromagnetic door stopper adsorption.

When the movable block 13 moves, the movable rod 26 rotates, the sliding block 27 moves upwards in the sliding groove, one end of the movable rod 26 rotates, the fixed plate 281 and the supporting plate 283 rotate to be parallel to the iron core 4, the sliding block 27 moves and drives the pushing rod 29 to move upwards, the second round boss at the bottom of the pushing rod 29 moves along the inclined plane of the extruding block 30, the extruding block 30 is extruded, the buffer spring stretches, the pushing plate moves towards the iron core 4, the fixed rod 285 drives the supporting plate 283 to move, the third telescopic rod 282 stretches, the first round boss 284 on one side of the supporting plate 283 is attached to the iron core 4, so that the two sides of the iron core 4 are supported and fixed through the supporting plate 283 and the first round boss 284, when the power wire 10 is damaged, the power supply to the coil 7 is insufficient, the iron core 4 and the armature 2 are in poor contact, when the first prompting plate 15 does not move out of the outer shell 3 completely, the second prompting plate 21 does not move into the outer shell 3 completely, the electromagnetic door is in a state of being opened by mistake or a mistake, the opening and closing state of the electromagnetic door is fed back, and the electromagnetic door is convenient for prompting people to overhaul.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.

Claims (10)

1. The utility model provides an explosion-proof dustproof waterproof electromagnetic door stopper, includes preceding adjustable support (1), a serial communication port, the bottom screw rod of preceding adjustable support (1) is connected with armature (2), the bottom of armature (2) is provided with shell (3), the inside of shell (3) is provided with iron core (4), shell (3) top internal thread connection has closing cap board (5), closing cap board (5) middle part and iron core (4) threaded connection, iron core (4) top internal fixation has bullet post (6), the cavity has been seted up at iron core (4) middle part, the cavity is inside to be provided with fixed spring, fixed spring bottom is provided with connecting switch, the outside of iron core (4) is provided with coil (7), shell (3) bottom thread connection has bottom plate (8), bottom plate (8) internally provided with gram head (9), gram head (9) and shell (3) bottom thread connection, coil (7) are connected with power cord (10) through gram head (9) gram head, iron core (4) top fixedly connected with bullet post (6), it has moving rod (12) to open and install fixed surface (12) moving rod (12), the utility model provides a movable block (13) one side fixedly connected with extrusion pole (14), extrusion pole (14) one side is provided with first suggestion board (15), first suggestion board (15) one side fixedly connected with coupling spring (16), coupling spring (16) one end fixedly connected with connecting plate, connecting plate and closing cap board (5) threaded connection, extrusion pole (14) bottom fixedly connected with connecting rod (17), connecting rod (17) bottom fixedly connected with first rack (18), first rack (18) bottom meshing has gear (19), gear (19) bottom meshing has second rack (20), second rack (20) one side threaded connection has second suggestion board (21), second rack (20) bottom fixedly connected with first telescopic link (22).

2. The explosion-proof dustproof waterproof electromagnetic door stopper according to claim 1, wherein the inner ring and the outer ring of the sealing cover plate (5) are provided with threads, the inner wall of the sealing cover plate (5) is provided with a groove, a first rubber ring (23) is arranged in the groove, the top of the spring column (6) is attached to the armature (2), the coil (7) is located at the bottom of the sealing cover plate (5), a second rubber ring (24) is arranged outside the bottom of the coil (7) and the bottom of the iron core (4), and the bottom of the iron core (4) is located inside the second rubber ring (24).

3. An explosion-proof, dust-proof and water-proof electromagnetic door stopper according to claim 1, characterized in that the power line (10) passes through the shell (3) and extends to the bottom of the bottom plate (8), the gram head (9) is positioned between the bottom plate (8) and the shell (3), the movable groove is formed in the cover plate (5), two ends of the movable plate (11) pass through the mounting groove and extend to the inside of the movable groove, the movable rod (12) is positioned at the bottom of the movable block (13), the movable rod (12) and the movable block (13) are symmetrically arranged in the center of the movable block (13), and the movable block (13) is in sliding connection with the inside of the movable groove.

4. The explosion-proof dustproof waterproof door stopper according to claim 1, wherein the extrusion rod (14) penetrates through the sealing cover plate (5) to extend into the shell (3), a compression spring is sleeved on the outer surface of the extrusion rod (14), one end of the compression spring is fixedly connected with the movable block (13), the other end of the compression spring is fixedly connected with the inner wall of the movable groove, one end of the extrusion rod (14) is attached to one side of the first prompting plate (15), a fixed groove is formed in one side of the first prompting plate (15), two second telescopic rods (25) are fixedly connected in the fixed groove, one ends of the two second telescopic rods (25) are in threaded connection with the sealing cover plate (5), and the two sealing cover plates (5) are located between the extrusion rod (14) and the connecting spring (16).

5. The explosion-proof dustproof waterproof electromagnetic door stopper according to claim 1, wherein two moving ports are formed in the outer surfaces of two sides of the shell (3), the first prompting plate (15) is located inside the moving ports, the second prompting plate (21) extends to the outside of the shell (3) through the moving ports, the connecting rod (17) is located at one end, close to the first prompting plate (15), of the extrusion rod (14), the first rack (18), the second rack (20) and the gear (19) are located inside the shell (3), a rotating shaft is fixedly connected to the middle of the gear (19), fixing frames are rotatably connected to two ends of the rotating shaft, and one end of each fixing frame is fixedly connected with the corresponding sealing cover plate (5).

6. The explosion-proof, dust-proof and water-proof electric door stopper according to claim 1, wherein one end of the bottom of the moving block (13) is hinged with a movable rod (26), the middle part of the movable rod (26) is hinged with a sliding block (27), the inner wall of the movable groove is provided with a sliding groove, the sliding block (27) is slidably connected with the sliding groove, one end of the movable rod (26) is provided with a supporting block (28), and the supporting block (28) penetrates through the movable groove to extend to the middle part of the sealing cover plate (5).

7. The explosion-proof, dust-proof and water-proof electromagnetic door stopper according to claim 6, wherein the supporting block (28) comprises a fixed plate (281), one side of the fixed plate (281) is hinged with the movable rod (26), the other side of the fixed plate is fixedly connected with a third telescopic rod (282), one end of the third telescopic rod (282) is fixedly connected with a supporting plate (283), and one side of the supporting plate (283) is fixedly connected with first round protrusions (284) distributed at equal intervals.

8. The explosion-proof, dust-proof and water-proof electric door stopper according to claim 7, wherein a fixing rod (285) is fixedly connected to one side of the supporting plate (283), one end of the fixing rod (285) penetrates through the fixing plate (281) and extends into the movable groove, two fixing rods are arranged, and the fixing rods (285) are located on two sides of the third telescopic rod (282).

9. The explosion-proof dustproof waterproof electromagnetic door stopper according to claim 6, wherein the pushing rod (29) is fixedly connected to the top of the sliding block (27), the top of the pushing rod (29) is a second round protrusion, the extrusion block (30) is arranged at the top of the sliding groove and positioned in the movable groove, one end, close to the sliding groove, of the extrusion block (30) is an inclined surface, one side of the extrusion block (30) is fixedly connected with the extrusion plate (31), one side of the extrusion plate (31) is fixedly connected with the buffer spring at the top of the extrusion block (30), and one end of the buffer spring is fixedly connected with the inner wall of the movable groove.

10. A process for using the explosion-proof, dust-proof, water-proof and electromagnetic door stopper according to claim 9, comprising the steps of:

Step one: firstly, an iron core (4) is fixed in a sealing cover plate (5), the iron core is connected with a shell (3) through threads on the outer ring of the sealing cover plate (5), M threads with no less than 5 buckles are adopted for connection, a thread clearance is no more than 0.5mm, the cover plate and the shell are required to have certain strength, the sealing cover plate (5) is screwed, M threads with no less than 6 buckles are respectively arranged on the inner ring and the outer ring of the sealing cover plate (5), the thickness of the sealing cover plate (5) is equal to the width of a groove added on the corresponding threads of the shell (3), a first rubber ring (23) with the same size and diameter as the groove is placed in the groove, the first rubber ring (23) is compacted to form a protection structure, so that the sealing cover plate (5) and the iron core (4) are fixed in the shell (3), the front adjustable bracket (1) is fixed with the armature (2) through a screw rod, the gram head (9) is connected with the bottom of the shell (3) through M threads with no less than 5 buckles, so that the gram head is screwed down to be fixed with the bottom of the shell (3), the bottom plate (8) is screwed down to the bottom of the shell (3) through threads, the coil (7) is connected with the power wire (10) through the gram head (9), the accessory used for wiring is an accessory meeting the explosion-proof requirement, the integral forming of an internal closed device can reach IP65 level dustproof and waterproof, meanwhile, the connection between the components adopts threaded connection, then the electromagnetic door suction performance is improved through the compression of the internal space, and meanwhile, the influence caused by static electricity and spark generated by electrifying is reduced, when sparks occur, the internal and external contacts need to pass through the explosion-proof contact surface of the threads, so that the explosion-proof contact surface can not be transmitted out with great probability, and the explosion-proof function is achieved;

Step two: then the sealing plate (5) is used for sealing the device by adopting a double-thread structure, a sealing rubber ring is additionally arranged between the shell (3) and the gram head (9), between the shell (3) and the sealing plate (5) and between the iron core (4) and the sealing plate (5) to form a protection structure connecting plate, the protection structure connecting plate is kept sealed, the dustproof and waterproof functions are achieved, the connecting plate is in threaded connection with the sealing plate (5), one end of a first telescopic rod (22) is in threaded connection with the sealing plate (5), the first prompting plate (15) is fixed on the outer side of the sealing plate (5), one end of a second prompting plate (21) is in threaded connection with one end of a second rack (20), the second prompting plate (21) is fixed with the second rack (20), and the second prompting plate (21) is fixed on the outer part of the shell (3);

Step three: then, a power supply is switched on, so that the coil (7) is electrified, the iron core (4) is magnetized, a magnetic field is generated at the same time, the iron core (4) is contacted with the armature (2), the effect of fixing a door is achieved, meanwhile, the spring column (6) is extruded, the spring column (6) drives the moving plate (11) to move downwards, the moving rod (12) rotates to push the moving block (13) to move, the compression spring compresses, the extruding rod (14) moves towards the outside of the sealing plate (5), the extruding rod (14) pushes the first prompting plate (15) to move towards the outside of the shell (3), meanwhile, the extruding rod (14) moves to drive the first rack (18) to move, the gear (19) rotates, the second rack (20) drives the second prompting plate (21) to move into the inside of the shell (3), and people are prompted by the first prompting plate (15) to attract and adsorb the door to fix the door;

Step four: and finally, when the moving block (13) moves, the movable rod (26) rotates, the sliding block (27) moves upwards in the sliding groove, one end of the movable rod (26) rotates to enable the fixed plate (281) to rotate with the supporting plate (283) and keep parallel to the iron core (4), the sliding block (27) moves and drives the pushing rod (29) to move upwards, the second round boss at the bottom of the pushing rod (29) moves along the inclined plane of the extruding block (30), the extruding block (30) is extruded, the buffer spring stretches, the pushing plate moves towards the iron core (4), the fixed rod (285) is pushed to drive the supporting plate (283) to move, the third telescopic rod (282) stretches, the first round boss (284) at one side of the supporting plate (283) is attached to the iron core (4), and accordingly the two sides of the iron core (4) are supported and fixed through the supporting plate (283) and the first round boss (284), and the contact stability of the iron core (4) and the armature (2) is facilitated to be increased.