CN109707450B - Tunnel guard gate structure with electromagnetic door stopper - Google Patents
Tunnel guard gate structure with electromagnetic door stopper Download PDFInfo
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- CN109707450B CN109707450B CN201910045749.0A CN201910045749A CN109707450B CN 109707450 B CN109707450 B CN 109707450B CN 201910045749 A CN201910045749 A CN 201910045749A CN 109707450 B CN109707450 B CN 109707450B
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- 238000007789 sealing Methods 0.000 claims description 16
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- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000012945 sealing adhesive Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a tunnel protective door structure with electromagnetic door stoppers, which belongs to the technical field of tunnel protective door application. The tunnel protective door structure is simple in structure, simple and convenient to set and high in control accuracy, the protective door locked in place can be tightly sucked with the door frame through the plurality of magnetic door stoppers, double locking of the protective door is achieved, the protective door and the door frame can correspondingly form a unified stress body, shaking of the protective door under the action of piston wind is reduced, deformation or damage of related structures of the protective door is avoided, the service life of the protective door is prolonged, overhaul and maintenance cost of the protective door is reduced, and the tunnel protective door structure has good popularization and application values.
Description
Technical Field
The invention belongs to the technical field of tunnel protection door application, and particularly relates to a tunnel protection door structure with electromagnetic door stopper.
Background
Along with the continuous development of high-speed railways in China, the railway tunnels are increasingly applied and the mileage is also increasingly long. In the operation process of the tunnel, because the space in the tunnel is relatively closed, if a fire disaster occurs in the tunnel, people can not be dealt with, and people can not be evacuated and rescue more easily than in a non-tunnel section. Therefore, an evacuation channel is often added in the tunnel to ensure the emergency evacuation efficiency, and a tunnel protection door is correspondingly arranged to separate the evacuation channel from a train track area of the tunnel; in addition, storage door openings of equipment such as communication, signals and electric power are often arranged in the tunnel, and the door openings are generally separated from a train track area of the tunnel through a tunnel protection door so as to ensure the storage safety and the use stability of the equipment.
However, because the cross-sectional area of the train is larger than the cross-sectional area of the tunnel when the train passes through the tunnel in operation, the length of the tunnel is often longer, and the operation speed of the train is faster, so that the train can generate a 'piston effect' of larger lateral wind pressure in the tunnel when operating in the tunnel, continuous wind pressure effect can be generated on the tunnel protection doors at two sides of the tunnel, the risk of damage or falling off due to impact can occur on the tunnel protection doors under the effect of long-term circulating wind pressure, even the risk of falling off to the track side of the tunnel can be caused, hidden danger is brought to the safe operation of the tunnel, and the normal storage of equipment in the tunnel is also influenced.
In the prior art, the door frame in the tunnel protection door structure is often fixed on the partition wall through the form of planting muscle or chemical anchor bolt, and tunnel protection door is on the door frame with hinge swing joint, then corresponds the locking that realizes tunnel protection door through the world lock, realizes separating the track district of tunnel and the grotto or evacuation passageway in the tunnel. Although the tunnel protection door structure can realize the function of the tunnel protection door to a certain extent, many defects exist, such as: 1. the protection door of the existing tunnel protection door structure is generally locked through a top-bottom lock, a unified stress body is difficult to form between a door body and a door frame, so that when the tunnel protection door is acted by piston wind, a lock tongue of the top-bottom lock is often required to bear a larger load, deformation or damage is easy to occur, and the opening and the closing of the tunnel protection door are difficult; 2. when current tunnel protection door locking, often can have the condition that the door body is closed inadequately, exists certain gap between door frame and the door body, and this can not only lead to the door body to receive reciprocal rocking when the wind pressure circulation is used, causes the damage of the door body and the inefficacy of junction, can also make when unexpected circumstances such as conflagration take place in the tunnel, the sealed effect of tunnel protection door is too poor, can't fully play the effect in keep apart the track district, can't effectively keep apart smokes or poison gas, causes unnecessary loss.
Disclosure of Invention
In order to overcome one or more of the defects or improvement requirements of the prior art, the invention provides a tunnel protective door structure with electromagnetic door stoppers, wherein a plurality of magnetic door stoppers are arranged on a door frame corresponding to the protective door, so that the protective door can be tightly sucked by the magnetic door stoppers after being locked in place, the damage and deformation of a relevant connecting structure and a locking structure of the protective door are effectively reduced, the application safety and convenience of the protective door are improved, and the service life of the protective door is prolonged.
In order to achieve the above purpose, the invention provides a tunnel protective door structure with electromagnetic door attraction, which is characterized by comprising a door frame with an L-shaped cross section and a protective door movably connected to the door frame; wherein,
The door frame is arranged corresponding to a door opening on the partition wall, is fixedly connected to the partition walls on two sides and the top of the door opening, and is provided with a plurality of magnetic door stoppers at intervals corresponding to the protective door;
The door frame is provided with a mounting hole corresponding to the magnetic door stopper, the lock body of the magnetic door stopper is correspondingly embedded and fixed in the mounting hole, and the magnetic surface of the magnetic door stopper protrudes out of the surface of the door frame at the mounting hole, so that the magnetic surface can be abutted to the end face of the protective door in a locking state and can tightly suck the protective door, thereby realizing the tight closing of the protective door, and the protective door and the door frame form a uniform stressed body.
As a further improvement of the invention, the lock body of the magnetic door stopper is provided with a spring, one end of the spring is fixed in the lock body, and the other end of the spring protrudes out of the magnetic surface, so that the protective door can contact with the end part of the spring before contacting with the magnetic surface, and the protective door is buffered by the spring.
As a further improvement of the present invention, the door frame includes a main frame having a rectangular cross section and a sub frame having a square cross section;
The main frame is fixedly connected to the partition wall, the auxiliary frame is fixedly connected to the side wall surface of the main frame, the mounting holes are correspondingly formed in the auxiliary frame, namely the magnetic attraction surface of the magnetic door attraction protrudes out of the surface of the auxiliary frame, and the auxiliary frames on two sides of the door opening can be respectively aligned with the end surfaces of the protective door in a locking state.
As a further improvement of the invention, a sealing rubber strip is adhered to the surface of the auxiliary frame, and is opposite to the protective door in a locking state, and the top surface of the sealing rubber strip protrudes out of the magnetic attraction surface.
As a further improvement of the invention, a control module is arranged corresponding to a plurality of magnetic door stoppers, and the control module is respectively and electrically connected with each magnetic door stopper and can control each magnetic door stopper to work or not work.
As a further improvement of the invention, contact switches are respectively arranged on two sides of the protective door corresponding to the control module and are electrically connected with the control module, and the disconnection between the control module and each magnetic door stopper can be realized through the contact switches, namely, each magnetic door stopper is disabled.
As a further improvement of the invention, the contact switch is a multi-contact switch, and comprises a plurality of switches which can be opened and closed, and the opening of any switch can realize the disconnection of the control module and each magnetic door stopper.
As a further improvement of the present invention, the number of the magnetic door sticks provided on the door frame corresponding to the connection side of the protective door is smaller than the number of the magnetic door sticks provided on the door frame corresponding to the movable side of the protective door.
As a further improvement of the invention, two magnetic door stoppers are arranged on the door frame corresponding to the connecting side of the protective door at intervals, three magnetic door stoppers are arranged on the door frame corresponding to the movable side of the protective door at intervals, and one magnetic door stopper is arranged on the door frame at the top of the door opening.
As a further improvement of the invention, the top of the back of the protective door is provided with a door closer.
The above-mentioned improved technical features can be combined with each other as long as they do not collide with each other.
In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:
(1) According to the tunnel protective door structure with the electromagnetic door stopper, the plurality of magnetic door stoppers are correspondingly arranged on the door frame with the L-shaped cross section at intervals, so that after the tunnel protective door is correspondingly closed, the end face of the door body of the protective door can correspondingly abut against the magnetic surface of the magnetic door stopper, and then the door body of the protective door is correspondingly sucked by the plurality of magnetic door stoppers, so that the protective door locked in place can form a uniform stress body with the door frame and the partition wall, the shaking of the protective door when the protective door is acted by piston wind is reduced, the load action on the protective door hinge and the top-bottom lock rod is reduced, the service life of the corresponding connection and locking structure on the protective door is prolonged, the safe and stable application of the tunnel protective door is ensured, and the maintenance cost of the tunnel protective door is reduced;
(2) According to the tunnel protective door structure with the electromagnetic door stopper, the sealing rubber strips are arranged on the door frame corresponding to the protective door and the magnetic door stopper, so that after the protective door is locked in place, the end faces of the protective door can be correspondingly abutted against the end faces of the protective door, gaps between the door body and the door frame after the protective door is locked are reduced, the tightness of the protective door after the protective door is locked is improved, a tunnel track area is fully separated from the space on the other side of the protective door, smoking and toxic gas permeation are reduced, the full isolation of the spaces on the two sides of the protective door is ensured when an emergency occurs, and the emergency evacuation efficiency and the emergency evacuation success rate are improved;
(3) According to the tunnel protection door structure with the electromagnetic door stopper, the control modules are arranged corresponding to the magnetic door stoppers, so that the rapid and simultaneous control of the magnetic door stoppers is realized, the convenience of opening and locking the tunnel protection door is improved, and the contact switches are respectively arranged on the two sides of the protection door through the corresponding control modules, so that the rapid release of the magnetic door stoppers in emergency is ensured, the emergency evacuation efficiency is improved, and the safe use of the tunnel protection door is ensured;
(4) According to the tunnel protective door structure with the electromagnetic door stopper, through the arrangement quantity of the magnetic door stoppers on the door frames at the two sides, when the tunnel protective door is acted by piston wind, the weak part of the protective door can be fully protected, namely, the top and bottom locks of the protective door are fully protected, the deformation or damage of the lock rod is reduced, the service life of the top and bottom locks is prolonged, and the overhaul and maintenance cost of the tunnel protective door is reduced;
(5) The tunnel protective door structure with the electromagnetic door stopper has the advantages that the structure is simple, the arrangement is simple and convenient, the control accuracy is high, the protective door locked in place and the door frame can be tightly sucked through the plurality of magnetic door stoppers, the protective door can be doubly locked through the top-bottom lock and the magnetic door stopper, the protective door and the door frame can correspondingly form a unified stress body, the shaking of the protective door when the protective door is acted by piston wind is reduced, the deformation or damage of related structures of the protective door is avoided, the service life of the protective door is prolonged, the overhaul and maintenance cost of the protective door is reduced, and the tunnel protective door structure has good popularization and application values.
Drawings
FIG. 1 is a front view of a tunnel shield door structure with electromagnetic door suction in an embodiment of the invention;
FIG. 2 is an enlarged front partial M view of a tunnel guard gate structure with electromagnetic door stop in an embodiment of the invention;
FIG. 3 is an enlarged partial front I view of a tunnel guard gate structure with electromagnetic door stop in an embodiment of the invention;
FIG. 4 is a longitudinal cross-sectional view of a tunnel shield door structure with electromagnetic door stop in an embodiment of the invention;
FIG. 5 is a partial N enlarged view in longitudinal section of a tunnel guard gate structure with electromagnetic door stop in an embodiment of the invention;
FIG. 6 is a longitudinal section partial P enlarged view of a tunnel guard gate structure with electromagnetic door stop in an embodiment of the invention;
FIG. 7 is a cross-sectional view of a tunnel shield door structure with electromagnetic door stop in an embodiment of the invention;
FIG. 8 is a cross-sectional partial Q-section enlarged view of a tunnel guard gate structure with electromagnetic door stop in an embodiment of the invention;
Like reference numerals denote like technical features throughout the drawings, in particular: 1. the protective door, 2, the door frame, 201, the main frame, 202, the auxiliary frame; 3. magnetic door stopper 301, lock body 302, spring; 4. sealing rubber strips, a contact switch, a space lock, a push handle, a lock rod and a push handle, wherein the contact switch, the space lock, the ground lock, the push handle and the lock rod are arranged in sequence; 7. door closer, 8, hinge, 9, control module, 901, control circuit, 902, power.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The tunnel protective door structure with electromagnetic door suction in the preferred embodiment of the invention is shown in fig. 1-8, wherein the tunnel protective door structure comprises a door frame 2 correspondingly connected with a partition wall and a protective door 1 correspondingly movably connected with the door frame 2at the side edge, a space lock 6 is correspondingly arranged on the protective door 1, and the opening or closing of the protective door 1 can be correspondingly realized by utilizing the opening or closing of the space lock 6; further, a side of the protection door 1 corresponding to the connection door frame 2 may be referred to as a protection door connection side, and correspondingly, a side facing away from the protection door connection side may be referred to as a protection door movable side, and opening or closing of the protection door 1 may be achieved by corresponding rotation of the protection door movable side around the fireproof door connection side.
Further specifically, the door frame 2 in the preferred embodiment is correspondingly disposed on two sides and the top of the door opening on the partition wall, and is preferably composed of a main frame 201 and an auxiliary frame 202, the main frame 201 is preferably a square tube structure with a rectangular cross section, which is correspondingly and fixedly connected with the partition wall, the auxiliary frame 202 is preferably a square tube structure with a square cross section, which is fixedly connected on the side wall surface of the main frame 201, and forms the door frame 2 with an "L-shaped" cross section, then the protective door 1 can be correspondingly and movably connected on the door frame 2 through a plurality of hinges 8 disposed on the main frame 201 on one side of the door opening, so as to realize the corresponding installation of the protective door 1, and after the protective door 1 is closed, the protective door is just between the two main frames 201 on two sides of the door opening, and the two auxiliary frames 202 are respectively opposite to each other with the vertical two sides of one side surface, as shown in fig. 7. It is further preferred that the bottoms of the door frames 2 on both sides of the door opening are preferably fixed with the bottom surface of the cavity in cast-in-place concrete.
Further, the protective door 1 in the preferred embodiment has a top-bottom lock 6, which includes a push handle 601 and a lock rod 602, as shown in fig. 2, the lock rod 602 is two separate devices above and below the push handle 601, one ends of the two lock rods 602, which are close to each other, are respectively connected to the lock body of the top-bottom lock 6, and the push handle 601 controls the two lock rods 602 to vertically lift, so as to drive the two lock rods 602 away from the end bolts, and realize the opening or closing of the top-bottom lock. Further preferably, as shown in fig. 1 and fig. 5, the top of the back of the protective door 1 in the preferred embodiment is correspondingly provided with a door closer 7, so that the physical effort required for closing the protective door 1 is saved, and the protective door 1 is assisted to realize quick locking.
Further, a plurality of magnetic door stoppers 3 are provided on the door frame 2 in the preferred embodiment corresponding to the protective door 1, and are spaced apart on the sub-frame 202, as shown in fig. 1 and 8, the magnetic door stoppers 3 in the preferred embodiment include a lock body 301 and a spring 302, and mounting holes are correspondingly provided on the side wall surface of the sub-frame 202 corresponding to the lock body 301, so that the lock body 301 is correspondingly embedded in the mounting holes and fixed, and the magnetic attraction surface of the lock body 301 can be just clung to the end surface of the protective door 1 in the closed state, as shown in fig. 7.
Further preferably, after the magnetic door stopper 3 in the preferred embodiment is fixed to the mounting hole in the subframe 202, the magnetic surface thereof preferably protrudes from the surface of the subframe 202, so as to ensure that the end surface of the protective door 1 can accurately abut against the magnetic surface of the magnetic door stopper 3; accordingly, in order to improve the tightness of the closed protection door 1, the auxiliary frame 202 is correspondingly adhered with the sealing rubber strip 4, as shown in fig. 5 and 8, the sealing rubber strip is preferably made of environment-friendly high-temperature-resistant sealing silica gel material, and can be deformed to a certain extent, and after the sealing rubber strip 4 in the preferred embodiment is arranged on the auxiliary frame 202, the top surface of the sealing rubber strip 4 is preferably slightly higher than the magnetic attraction surface of the magnetic door stopper 3, so that when the protection door 1 is closed, the sealing rubber strip 4 is firstly abutted against the top surface of the sealing rubber strip 4, and then the sealing rubber strip 4 is extruded to deform to enable the door body of the protection door 1 to be abutted against the magnetic attraction surface of the magnetic door stopper 3, so that the tightness between the protection door 1 and the door frame 2 after the protection door 1 is closed can be fully ensured through the magnetic door stopper 3 and the sealing rubber strip 4.
Further, the spring 302 in the preferred embodiment is disposed in the middle of the lock body 301, one end of the spring 302 is fixed in the lock body 301, and the other end of the spring extends out of the magnetic attraction surface of the lock body 301, so that when the protective door 1 is closed, the door body plate surface of the spring 302 or the end surface of the sealing adhesive tape 4 is firstly contacted with the protective door 1, the spring 302 and the sealing adhesive tape 4 buffer the protective door 1, and then the protective door 1 compresses the spring 302 and contacts the magnetic attraction surface of the lock body 301 correspondingly, so that the protective door 1 in the closed state can be correspondingly attracted by a plurality of magnetic door attractions 3 which are disposed on the door frame 2 at intervals, and the protective door 1 and the door frame 2 in the closed state can form a unified stressed body, so that when the protective door 1 is acted by piston wind, the impact force can be uniformly transmitted to the door frame 2 and the partition wall, the impact to the hinge 8 and the space lock 6 is reduced, the damage to the hinge 8 and the space lock 6 is avoided, and the normal use of the tunnel protective door is realized.
Obviously, in the preferred embodiment, the door body material of the protection door 1 or the door body material abutting against the magnetic door stopper 3 is a magnetic material, such as a steel material or an alloy material, when the protection door 1 is a composite door body, the magnetic stopper can be correspondingly pre-buried or adhered on the door body, so that the magnetic stopper is correspondingly matched with the magnetic door stopper 3, and the corresponding attraction between the protection door 1 and the door frame 2 is realized.
Further preferably, magnetic door stoppers 3 are provided on the door frame 2 at both sides and the top of the door opening, as shown in fig. 1, and the protective door 1 is provided with more magnetic door stoppers 3 on the door frame 2 corresponding to one side of the space lock 6 than on the door frame 2 at the other side, so as to fully protect the space lock 6 and reduce deformation or damage of the space lock 6; further specifically, three magnetic door stoppers 3 are arranged on the door frame 2 close to one side of the top-bottom lock 6 at intervals, the magnetic door stoppers 3 are preferably arranged at equal intervals, two magnetic door stoppers 3 are arranged on the door frame 2 away from one side of the top-bottom lock 6 at intervals, correspondingly, one magnetic door stopper 3 is correspondingly arranged at the top of the door frame 2, and further, the protective door 1 can be locked in place reliably through the correspondingly arranged 6 magnetic door stoppers 3. Of course, the arrangement of the magnetic door stopper 3 on the door frame 2 is not limited to the above-mentioned number, and it may be preferable to be other arrangement numbers according to actual needs, for example, when the piston wind effect in the tunnel is strong, the arrangement number of the magnetic door stopper 3 may be correspondingly increased, and when the piston wind effect in the tunnel is weak, the arrangement number of the magnetic door stopper 3 may be correspondingly reduced.
Further preferably, a plurality of magnetic door stoppers 3 corresponding to the door frame 2 are provided with control modules 9, which are respectively connected with the magnetic door stoppers 3 by control circuits 901, and are provided with power supplies 902 corresponding to the magnetic door stoppers 3 and the control modules 9, the power supplies 902 correspondingly provide power, and the control modules 9 correspondingly control the switching of the working state and the closing state of the magnetic door stoppers 3; when the magnetic door stopper 3 is in a working state, electromagnetic force is generated by the magnetic stopper face to adsorb the end face of the protective door 1, and the protective door 1 and the door frame 2 are attracted into a unified stress body; when the magnetic door stopper 3 is closed, no electromagnetic attraction exists between the magnetic door stopper and the protective door 1, and the protective door 1 is locked in place or correspondingly opened by the top-bottom lock 6. Of course, the control of each magnetic door stopper 3 is not limited to the above control, and each magnetic door stopper 3 may be controlled individually or in a unified manner.
In a preferred embodiment, each magnetic door stopper 3 is uniformly controlled, and corresponding to the control circuit thereof, power switches are respectively arranged on partition walls on two sides of the protective door 1, each magnetic door stopper 3 can start working by opening the power switches, electromagnetic attraction force is correspondingly generated, the power supply to each magnetic door stopper 3 can be stopped by closing the power switches, the magnetic door stopper 3 is in an inactive state, no electromagnetic attraction force is generated, and at the moment, the protective door 1 can be opened only by opening the top and bottom locks 6.
Further preferably, as shown in fig. 1 and 2, in order to fully ensure the normal application of the magnetic door stopper 3, the control circuit 901 corresponding to each magnetic door stopper 3 is provided with a contact switch 5, which further preferably may be a multi-contact switch disposed at two sides of the door body of the protection door 1, the contact switch 5 is correspondingly electrically connected with the control circuit 901, and includes a plurality of cut-off switches, and by communicating with any one cut-off switch, the corresponding cut-off of the control circuit 901 can be implemented, so that all the magnetic door stoppers 3 fail, which ensures the quick release of the magnetic door stopper 3 when an unexpected situation occurs, or ensures the switching between the working state and the closing state of the magnetic door stopper by the contact switch 5 when the power switch at any side of the protection door 1 fails, thereby fully ensuring the quick opening of the protection door 1 in an emergency situation.
According to the tunnel protection door structure with the electromagnetic door stopper, after the tunnel protection door is correspondingly closed, the door body end face of the protection door can be abutted against the magnetic surface of the magnetic door stopper, the door body is correspondingly sucked by the plurality of magnetic door stoppers, so that the protection door after being locked in place can form a unified stress body with the door frame and the partition wall, the shaking of the protection door when the protection door is acted by piston wind is reduced, the load action on a protection door hinge and a top-bottom locking rod is reduced, the service life of the corresponding connection and locking structure on the tunnel protection door is prolonged, the safe and stable application of the tunnel protection door is ensured, the maintenance cost of the tunnel protection door is reduced, the structures such as a sealing rubber strip and a contact switch are correspondingly arranged, the tightness when the protection door is closed is effectively realized, the application safety of the magnetic door stopper is ensured, the emergency evacuation efficiency in a tunnel is ensured, the safety and the stability of the protection door are improved, and the application value is better.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. The tunnel protective door structure with the electromagnetic door stopper is characterized by comprising a door frame with an L-shaped cross section and a protective door movably connected to the door frame; wherein,
The door frame is arranged corresponding to a door opening on the partition wall and is fixedly connected to the partition walls on two sides and the top of the door opening; a plurality of magnetic door stoppers are arranged on the door frame corresponding to the protective door at intervals, and the magnetic door stoppers are arranged on the door frame at the two sides and the top of the door opening;
The door frame is provided with a mounting hole corresponding to the magnetic door stopper, the lock body of the magnetic door stopper is correspondingly embedded and fixed in the mounting hole, and the magnetic surface of the magnetic door stopper protrudes out of the surface of the door frame at the mounting hole, so that the magnetic surface can be abutted against the end face of the protective door in a locking state and can tightly suck the protective door, thereby realizing the tight closing of the protective door and enabling the protective door and the door frame to form a uniform stressed body;
The door frame comprises a main frame with a rectangular section and a subsidiary frame with a square section; the main frame is fixedly connected to the partition wall, the auxiliary frame is fixedly connected to the side wall surface of the main frame, the mounting holes are correspondingly formed in the auxiliary frame, namely the magnetic attraction surface of the magnetic door attraction protrudes out of the surface of the auxiliary frame, and the auxiliary frames on two sides of the door opening can be aligned with the end surfaces of the protective door in a locking state respectively;
The number of the magnetic door stoppers arranged on the door frame corresponding to the connecting side of the protective door is smaller than that of the magnetic door stoppers arranged on the door frame corresponding to the movable side of the protective door; the lock body of the magnetic door stopper is provided with a spring, one end of the spring is fixed in the lock body, and the other end of the spring protrudes out of the magnetic surface, so that the protective door can contact the end of the spring before contacting the magnetic surface, and the spring buffers the protective door; and is also provided with
The control module is respectively electrically connected with the magnetic door stoppers and can control the work or the non-work of each magnetic door stopper; contact switches are respectively arranged on two sides of the protective door corresponding to the control module and are electrically connected with the control module, and the control module and each magnetic door stopper can be disconnected through the contact switches, so that each magnetic door stopper fails;
the surface of the auxiliary frame is adhered with a sealing rubber strip which is opposite to the protective door in a locking state, and the top surface of the sealing rubber strip protrudes out of the magnetic attraction surface.
2. The tunnel guard door structure with electromagnetic door stop as claimed in claim 1, wherein the contact switch is a multi-contact switch comprising a plurality of switches that can be opened and closed, and opening any of the switches can realize the disconnection of the control module from each of the electromagnetic door stops.
3. The tunnel protection door structure with electromagnetic door-inhale according to claim 1 or 2, wherein two magnetic door-inhale are arranged on the door frame corresponding to the protection door connection side at intervals, three magnetic door-inhale are arranged on the door frame corresponding to the protection door movable side at intervals, and one magnetic door-inhale is arranged on the door frame at the top of the door opening.
4. The tunnel shield door structure with electromagnetic door stopper according to claim 1 or 2, wherein a door closer is provided on a rear top of the shield door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910045749.0A CN109707450B (en) | 2019-01-17 | 2019-01-17 | Tunnel guard gate structure with electromagnetic door stopper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910045749.0A CN109707450B (en) | 2019-01-17 | 2019-01-17 | Tunnel guard gate structure with electromagnetic door stopper |
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| CN109707450B true CN109707450B (en) | 2024-05-24 |
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| CN209654083U (en) * | 2019-01-17 | 2019-11-19 | 中铁第四勘察设计院集团有限公司 | A kind of tunnel protection door with electromagnetism door-inhale |
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| CN206279956U (en) * | 2016-12-12 | 2017-06-27 | 天津华安天建门业有限公司 | A kind of fire door self-closing type with built-in adsorption net |
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| CN107941446A (en) * | 2017-12-13 | 2018-04-20 | 中铁第四勘察设计院集团有限公司 | A kind of repeated impact test device suitable for tunnel protection door |
| CN108049741A (en) * | 2017-12-29 | 2018-05-18 | 广州星际海洋工程设计有限公司 | A kind of multi-door interlock |
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| CN208294570U (en) * | 2018-06-04 | 2018-12-28 | 中铁第四勘察设计院集团有限公司 | A kind of protection door system with ventilation equipment |
| CN209654083U (en) * | 2019-01-17 | 2019-11-19 | 中铁第四勘察设计院集团有限公司 | A kind of tunnel protection door with electromagnetism door-inhale |
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