CN111498658A - Hoistway door safety protection structure - Google Patents
Hoistway door safety protection structure Download PDFInfo
- Publication number
- CN111498658A CN111498658A CN202010341323.2A CN202010341323A CN111498658A CN 111498658 A CN111498658 A CN 111498658A CN 202010341323 A CN202010341323 A CN 202010341323A CN 111498658 A CN111498658 A CN 111498658A
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- Prior art keywords
- block
- sill
- electromagnet
- door
- safety
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/30—Constructional features of doors or gates
- B66B13/301—Details of door sills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
- B66B13/185—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
- B66B13/20—Lock mechanisms actuated mechanically by abutments or projections on the cages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/30—Constructional features of doors or gates
- B66B13/306—Details of door jambs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/30—Constructional features of doors or gates
- B66B13/308—Details of seals and joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses a hoistway door safety protection structure which comprises a split door leaf, door sleeves fixed on two sides of the door leaf and a sill positioned below the door leaf, wherein the sill is fixedly arranged at the bottom of an opening of a hoistway layer door, a plurality of limiting slide block mechanisms are detachably arranged below the door leaf, and the bottoms of the limiting slide block mechanisms are uniformly provided with upper clamping teeth; a sliding groove is recessed in the top end face of the sill, a limiting sliding block mechanism is arranged in the sliding groove in a rolling mode, the bottom of the sliding groove is connected with a safety block through a lifting component, and a lower clamping tooth clamped with the upper clamping tooth is arranged at the top of the safety block; the outer surface of the sill is provided with a contact type switch mechanism for controlling the lifting component. When the elevator car does not stop at the floor where the hoistway door is located, the power supply circuits of the first electromagnet and the second electromagnet are always kept in a connected state, and under the action of electromagnetic force, the upper latch of the limiting slide block mechanism is clamped with the lower latch on the sill, so that locking below the door leaf can be realized, and the door leaf is prevented from being opened without permission under the condition of man-made malicious operation.
Description
Technical Field
The invention relates to the technical field of elevator hall door safety protection equipment, in particular to an elevator hall door safety protection structure.
Background
As a feature device, the safety of an elevator has been a focus of attention, and is also a topic that people in the industry are continuously discussing. The elevator hall door is used as a unique barrier for isolating the hall and the elevator shaft, and is also a unique way for communicating the elevator car and the hall, and the safety of the hall door is particularly important for the operation of an elevator system.
There are many types of elevator accidents, generally classified as top rushing, bottom squating, door accidents, and other accidents. Where the door accident has the largest percentage. The hall door accident is mainly caused by the condition that the hall door is opened without reason or is easily opened manually by people due to poor contact of the hall door interlock. When the cage is not completely stopped or even stopped at the floor, once the landing door is opened, the falling accident of the elevator personnel is easily caused.
In addition, in reality, when the elevator hall door is acted by artificial external force, because the hall door is a non-powered door, the movement of the hall door depends on the driving of the car door, when certain external force is applied to the hall door, a door lock mechanism on the hall door is easy to damage, the lower end of the hall door is separated from a doorsill, and the situation that the hall door is opened can also occur.
In contrast, the chinese patent with the granted publication number CN105883561B discloses a hoistway door safety protection structure, which includes an elevator door panel, a door shoe mounted at the lower end of the elevator door panel, and a sill engaged with the door shoe, wherein the door shoe includes a mounting portion, a main body portion, and a bending portion sequentially arranged from top to bottom, the mounting portion is connected with the elevator door panel, and a detection device for sensing the relative distance between the bending portion and the isolation plate is disposed on the isolation plate.
Although the effect of preventing the hoistway door from separating from the doorsill is enhanced to a certain degree, according to actual findings, the device has an obvious anti-falling effect when the door leaf is impacted from the front. However, this device cannot protect the door lock mechanism above the hall when the hall is pulled by both sides or is pried from between the door leaves, and for this reason we propose a hoistway door safety protection structure to solve the above problems.
Disclosure of Invention
The invention aims to provide a hoistway door safety protection structure to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a safety protection structure for elevator hoistway door comprises a split door leaf, door sleeves fixed on two sides of the door leaf and a sill positioned below the door leaf, wherein the sill is fixedly arranged at the bottom of an opening of a hoistway door,
a plurality of limiting slide block mechanisms are detachably mounted below the door leaf, and upper clamping teeth are uniformly arranged at the bottoms of the limiting slide block mechanisms;
a sliding groove is recessed in the top end face of the sill, the limiting sliding block mechanism is arranged in the sliding groove in a rolling mode, the bottom of the sliding groove is connected with a safety block through a lifting component, and the top of the safety block is provided with a lower clamping tooth clamped with the upper clamping tooth;
the outer surface of the sill is provided with a contact type switch mechanism for controlling the lifting component, and when the outer surface of the switch mechanism is contacted and extruded with the bottom of the car, the lifting component lowers the safety block.
Preferably, the limiting sliding block mechanism further comprises a sliding block and four idler wheels fixed at four corners of the bottom of the sliding block, the idler wheels roll along the length direction of the sliding groove, the upper clamping teeth are located at the bottom of the sliding block, a connecting plate is installed on the outer surface of the sliding block through screws, the connecting plate is fixedly connected with a bottom plate through bolts, and the bottom plate is welded and installed at the bottom of the door leaf and is as wide as the door leaf.
Preferably, the sliding groove is of a straight groove opening structure, a bearing block horizontally extends from the bottom of the sliding groove to the center of the sliding groove, the bearing block is equal to the sliding groove in length, and the roller rolls on the bearing block.
Preferably, the sill bottom is equipped with hollow lift chamber, through the notch intercommunication between lift chamber and the spout, the safety block lower part is located the lift intracavity, and the notch is run through on safety block upper portion, and the activity is located the spout bottom, the both ends fixed mounting of sill has the end cover of restriction safety block roll-off.
Preferably, the lifting component comprises a first electromagnet and a second electromagnet which are connected in series, the first electromagnet is fixedly connected to the bottom of the safety block, the second electromagnet is fixedly connected to the bottom of the lifting cavity, and the first electromagnet and the second electromagnet generate repulsive electromagnetic force when being electrified; a plurality of springs are fixedly connected between the bottom of the safety block and the bottom of the lifting cavity.
Preferably, the switch mechanism comprises a base fixedly connected to the outer surface of the sill, the base is connected with an arc contact plate in a sliding and clamping mode, an elastic sheet is installed between the arc contact plate and the base, and base end covers are fixedly installed on two sides of the base through screws.
Preferably, a cavity structure with a rectangular cross section is arranged in the base, a through groove is formed in one side, facing the arc contact plate, of the base, a T-shaped block penetrates through the through groove, one end of the T-shaped block is fixedly connected with the arc contact plate, the other end of the T-shaped block is located in the base, and protruding plates for limiting the T-shaped block to be separated from the cavity are arranged on two sides of the through groove.
Preferably, the inner end of the protruding plate is fixedly connected with a contact bump, a contact concave block is fixedly connected to the position, corresponding to the contact bump, of the T-shaped block, the contact bump is matched with the contact concave block, electrode plates are respectively arranged on the contact surfaces of the contact bump and the contact concave block, and the electrode plates are connected to power supply circuits of the first electromagnet and the second electromagnet in series.
Preferably, a plurality of infrared emitters are embedded in the sill and powered by a power supply independent of the first electromagnet and the second electromagnet, a point contact switch for connecting a circuit of the infrared emitters is installed between the base and the arc contact plate and comprises a first electrode and a second electrode, the first electrode is located at the bottom of the base, the second electrode is located at the bottom of the T-shaped block, and when the arc contact plate is extruded by the bridge chamber, the first electrode and the second electrode are in contact and communicated with a power supply circuit of the infrared emitters.
Preferably, an installation groove is concavely arranged on one side wall of the sill, a plurality of infrared emitters are uniformly installed in the installation groove, all the infrared emitters are connected in series, and the top of the installation groove is sealed with a transparent glass cover.
Compared with the prior art, the invention has the beneficial effects that:
when the elevator car does not stop at the floor where the hoistway door is located, the power supply circuits of the first electromagnet and the second electromagnet are always kept in a connected state, and under the action of electromagnetic force, the upper latch of the limiting slide block mechanism is clamped with the lower latch on the sill, so that locking below the door leaf can be realized, and the door leaf is prevented from being opened without permission under the condition of man-made malicious operation.
The emergency power-off switch provided with the first electromagnet and the second electromagnet is arranged, when an elevator maintenance worker needs to open the door leaf, the power supply circuit of the first electromagnet and the power supply circuit of the second electromagnet only need to be disconnected through the emergency power-off switch, and the situation that the opening and closing of the hoistway door can only depend on the first electromagnet and the second electromagnet and cannot be opened emergently is avoided.
When the elevator car stops at the floor where the hall door is located, the power supply circuit of the first electromagnet and the second electromagnet is powered off, at the moment, under the action of the spring, the second electromagnet drives the safety block to move towards the bottom of the lifting cavity, the lower latch and the upper latch are separated from being clamped, the hall door leaf can be opened under the driving of the bridge compartment door, and any change does not need to be made on the door lock structure of the existing door leaf.
Many parallel warning red lines of parallel department of shining of bank top on the infrared emitter to infrared emitter's supply circuit realizes the closure through the point contact switch, and its closed condition is just opposite with on-off mechanism, and when on-off mechanism switched on, the railway carriage or compartment is not in the floor of this entrance hall, and infrared emitter's supply circuit disconnection. Only when the cage stops at the floor, the arc-shaped contact plate is extruded at the bottom of the cage, the first electrode is contacted with the second electrode, the power supply circuit of the infrared emitter is connected, and when the door leaf is opened, the elevator passengers can see the infrared rays to play a role in warning.
Drawings
FIG. 1 is a schematic view of a door leaf installation structure according to the present invention;
FIG. 2 is a schematic view of a door leaf according to the present invention;
FIG. 3 is a bottom structure of the door leaf of the present invention;
FIG. 4 is a schematic view of a limiting slider mechanism according to the present invention;
FIG. 5 is a schematic view of the sill structure of the present invention;
FIG. 6 is a schematic view of a local structure of the sill of the present invention;
fig. 7 is a partial cross-sectional view of the sill of the present invention;
FIG. 8 is a schematic view of the switch mechanism of the present invention;
FIG. 9 is an exploded view of the switching mechanism of the present invention;
FIG. 10 is a partial schematic view of the switch mechanism of the present invention;
FIG. 11 is an enlarged view taken at A of FIG. 10 in accordance with the present invention.
In the figure: 1 door pocket, 2 sill, 201 spout, 202 bearing block, 203 notch, 204 lift chamber, 205 mounting grooves, 206 end cover, 3 door leaves, 301 bottom plate, 4 spacing slider mechanism, 41 slider, 42 go up latch, 43 gyro wheels, 44 connecting plates, 5 safety blocks, 501 lower latch, 61 first electro-magnet, 62 second electro-magnet, 7 infrared emitter, 701 transparent glass lid, 8 springs, 9 on-off mechanism, 91 base, 9101 flexure strip, 9102 contact lug, 9103 boss, 9104 logical groove, 92 arc contact plate, 9201T type piece, 9202 contact concave piece, 93 base end cover, 101 first electrode, 102 second electrode.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, the present invention provides a technical solution: the utility model provides a hoistway door safety protection structure, includes split type door leaf 3, fixes door pocket 1 and the sill 2 that is located door leaf 3 below at door leaf 3 both sides, and sill 2 fixed mounting is in the bottom of shaft layer door opening part. In practice, the hoistway door 3 is a non-powered door and is opened by the car door, a door lock device (not shown) is arranged above the hoistway door, and the two door 3 are locked by only the door lock device in the prior art.
Referring to fig. 1-3, a plurality of limiting slider mechanisms 4 are detachably mounted below the door leaf 3, and upper latch teeth 42 are uniformly arranged at the bottoms of the limiting slider mechanisms 4; the top end face of the sill 2 is recessed into a sliding groove 201, a limiting sliding block mechanism 4 is arranged in the sliding groove 201 in a rolling mode, the bottom of the sliding groove 201 is connected with a safety block 5 through a lifting component, and the top of the safety block 5 is provided with a lower latch 501 clamped with the upper latch 42. When the upper latch 42 of the limiting slide block mechanism 4 is engaged with the lower latch 501 on the sill 2, the locking below the door leaf 3 can be realized.
Referring to fig. 1, 4 and 7, the limiting slider mechanism 4 further includes a slider 41 and four rollers 43 fixed at four corners of the bottom of the slider 41, the rollers 43 roll along the length direction of the sliding slot 201, the upper latch 42 is located at the bottom of the slider 41, the outer surface of the slider 41 is provided with a connecting plate 44 by screws, the connecting plate 44 is fixedly connected to the bottom plate 301 by bolts, and the bottom plate 301 is welded to the bottom of the door 3 and has the same width as the door 3.
The door leaf 3 is in reciprocating sliding on the threshold 2, wherein the limiting slide block mechanism 4 of the bottom of the door leaf 3 is clamped in the sliding groove 201 of the threshold 2, and four idler wheels 43 are distributed at the bottom of the limiting slide block mechanism 4, so that the stability and the fluency of the door leaf 3 are increased in the sliding process, and the end covers 206 for limiting the safety block 5 to slide out are fixedly mounted at the two ends of the threshold 2.
Referring to fig. 7, the sliding slot 201 is a straight slot structure, a supporting block 202 horizontally extends from the bottom of the sliding slot 201 toward the center of the sliding slot, the supporting block 202 has the same length as the sliding slot 201, and the roller 43 rolls on the supporting block 202.
The bottom of the sill 2 is provided with a hollow lifting cavity 204, the lifting cavity 204 is communicated with the chute 201 through a notch 203, the lower part of the safety block 5 is positioned in the lifting cavity 204, the upper part of the safety block 5 penetrates through the notch 203 and is movably positioned at the bottom of the chute 201,
the lifting component comprises a first electromagnet 61 and a second electromagnet 62 which are connected in series, the first electromagnet 61 is fixedly connected to the bottom of the safety block 5, the second electromagnet 62 is fixedly connected to the bottom of the lifting cavity 204, and when the first electromagnet 61 and the second electromagnet 62 are electrified, the first electromagnet 61 and the second electromagnet 62 generate repulsive electromagnetic force; still the rigid coupling has a plurality of springs 8 between safety block 5 bottom and the lift chamber 204 bottom, and spring 8 is in tensile state, and when first electro-magnet 61 and second electro-magnet 62 outage, under the effect of spring 8, second electro-magnet 62 drives safety block 5 to the motion of lift chamber 204 bottom for lower latch 501 breaks away from the block with last latch 42.
Referring to fig. 8 to 11, the outer surface of the sill 2 is provided with a contact type switch mechanism 9 for controlling the lifting member, and when the outer surface of the switch mechanism 9 contacts with the bottom of the car and is pressed, the lifting member lowers the safety block 5.
The switch mechanism 9 comprises a base 91 fixedly connected to the outer surface of the sill 2, an arc contact plate 92 is connected to the base 91 in a sliding and clamping mode, an elastic sheet 9101 is installed between the arc contact plate 92 and the base 91, the elastic sheet 9101 bends towards the bottom of the base 91, and base end covers 93 are fixedly installed on two sides of the base 91 through screws.
The inside cavity structure that is equipped with the cross-section for the rectangle of base 91, has seted up logical groove 9104 towards one side of arc contact panel 92 on base 91, has run through T type piece 9201 in logical groove 9104, and T type piece 9201's one end and arc contact panel 92 rigid coupling, the other end are located base 91, lead to the groove 9104 both sides and are equipped with the protruding board 9103 that restriction T type piece 9201 breaks away from the cavity. The outer side of the arc contact plate 92 is of a smooth curved surface structure, when the elevator car moves to the floor from above or below the threshold 2, respectively, after the car stops stably, the outer side of the bottom of the car contacts with the arc contact plate 92 and presses the arc contact plate 92, so that the switch mechanism 9 is started.
The inner rigid coupling contact lug 9102 of protruding board 9103, the position rigid coupling contact concave block 9202 that corresponds contact lug 9102 on T type piece 9201, contact lug 9102 cooperatees with contact concave block 9202 for contact lug 9102 block is in the recess of contact concave block 9202, and is provided with the electrode slice on both contact surfaces respectively, and electrode slice series connection is on first electro-magnet 61 and second electro-magnet 62's power supply circuit.
Under the action of the elastic sheet 9101, the T-shaped block 9201 is pushed out to the outer side of the base 91, and the contact convex block 9102 is engaged with the contact concave block 9202 to connect the power supply circuits of the first electromagnet 61 and the second electromagnet 62.
When the elevator car does not stop at the floor where the hall door is located, the power supply circuits of the first electromagnet 61 and the second electromagnet 62 are always kept in a connected state, and under the action of electromagnetic force, the upper latch 42 of the limiting slide block mechanism 4 is clamped with the lower latch 501 on the sill 2, so that the locking below the door leaf 3 can be realized, and the door leaf 3 is prevented from being opened without permission under the condition of man-made malicious operation. The emergency power-off switch of the first electromagnet 61 and the second electromagnet 62 can be arranged during actual installation, and when the elevator maintenance personnel need to open the door leaf 3, the power supply circuit of the first electromagnet 61 and the power supply circuit of the second electromagnet 62 only need to be disconnected through the emergency power-off switch.
When the elevator car stops at the floor where the landing door is located, the outer side of the bottom of the car can be in contact with the arc contact plate 92 and extrude the arc contact plate 92, so that the contact convex block 9102 is separated from the contact concave block 9202, the power supply circuit of the first electromagnet 61 and the second electromagnet 62 is powered off, at the moment, under the action of the spring 8, the second electromagnet 62 drives the safety block 5 to move towards the bottom of the lifting cavity 204, the lower latch 501 is separated from the upper latch 42 to be clamped, and the landing door leaf 3 can be opened under the driving of the landing door.
Example two:
referring to fig. 6-8, on the basis of the first embodiment, a plurality of infrared emitters 7 may be embedded in the sill 2, the infrared emitters 7 are powered by a power supply independent of the first electromagnet 61 and the second electromagnet 62, a touch switch for connecting a circuit of the infrared emitters 7 is installed between the base 91 and the arc contact plate 92, the touch switch includes a first electrode 101 and a second electrode 102, the first electrode 101 is located at the bottom of the base 91, the second electrode 102 is located at the bottom of the T-shaped block 9201, and when the arc contact plate 92 is pressed by a bridge, the first electrode 101 and the second electrode 102 are in contact with the power supply circuit of the infrared emitters 7.
One of them lateral wall of sill 2 goes up the indent and has mounting groove 205, a plurality of infrared emitter 7 of even installation in the mounting groove 205, and all infrared emitter 7 adopt series connection, and the mounting groove 205 top is sealed has transparent glass lid 701.
A plurality of parallel warning red lines are arranged above the doorsill 2 on the infrared emitter 7 in parallel, the power supply circuit of the infrared emitter 7 is closed through a point contact switch, the closing state of the power supply circuit is just opposite to that of the switch mechanism 9, when the switch mechanism 9 is switched on, the bridge cage is not located on the floor of the lobby, and the power supply circuit of the infrared emitter 7 is switched off. Only when the cage stops at the floor, the bottom of the cage presses the arc-shaped contact plate 92, the first electrode 101 is contacted with the second electrode 102, the power supply circuit of the infrared emitter 7 is connected, and when the door leaf 3 is opened, the elevator passengers can see the infrared rays to play a warning effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a hoistway door safety protection structure, includes to open door leaf (3), fixes door pocket (1) in door leaf (3) both sides and sill (2) that are located door leaf (3) below, sill (2) fixed mounting is in the bottom of terraced well layer door opening part, its characterized in that:
a plurality of limiting sliding block mechanisms (4) are detachably mounted below the door leaf (3), and upper clamping teeth (42) are uniformly arranged at the bottoms of the limiting sliding block mechanisms (4);
the top end surface of the sill (2) is recessed into a sliding groove (201), the limiting sliding block mechanism (4) is arranged in the sliding groove (201) in a rolling mode, the bottom of the sliding groove (201) is connected with a safety block (5) through a lifting component, and the top of the safety block (5) is provided with a lower clamping tooth (501) clamped with the upper clamping tooth (42);
the outer surface of the sill (2) is provided with a contact type switch mechanism (9) for controlling the lifting component, and when the outer surface of the switch mechanism (9) is contacted with the bottom of the car and is extruded, the lifting component lowers the safety block (5).
2. The safety protection structure of claim 1, wherein: the limiting sliding block mechanism (4) further comprises a sliding block (41) and four idler wheels (43) fixed at four corners of the bottom of the sliding block (41), the idler wheels (43) roll along the length direction of the sliding groove (201), the upper clamping teeth (42) are located at the bottom of the sliding block (41), a connecting plate (44) is installed on the outer surface of the sliding block (41) through screws, the connecting plate (44) is fixedly connected with a bottom plate (301) through bolts, and the bottom plate (301) is installed at the bottom of the door leaf (3) in a welding mode and is as wide as the door leaf (3).
3. The safety protection structure of claim 1, wherein: the sliding groove (201) is of a straight groove opening structure, a bearing block (202) horizontally extends from the bottom of the sliding groove (201) to the center of the sliding groove, the bearing block (202) is equal to the sliding groove (201) in length, and the roller (43) rolls on the bearing block (202).
4. The safety protection structure of claim 3, wherein: sill (2) bottom is equipped with hollow lift chamber (204), through notch (203) intercommunication between lift chamber (204) and spout (201), safety block (5) lower part is located lift chamber (204), and notch (203) are run through on safety block (5) upper portion, and the activity is located spout (201) bottom, the both ends fixed mounting of sill (2) has end cover (206) of restriction safety block (5) roll-off.
5. The safety protection structure of claim 1, wherein: the lifting component comprises a first electromagnet (61) and a second electromagnet (62) which are connected in series, the first electromagnet (61) is fixedly connected to the bottom of the safety block (5), the second electromagnet (62) is fixedly connected to the bottom of the lifting cavity (204), and when the first electromagnet (61) and the second electromagnet (62) are electrified, the first electromagnet and the second electromagnet generate repulsive electromagnetic force; a plurality of springs (8) are further fixedly connected between the bottom of the safety block (5) and the bottom of the lifting cavity (204).
6. The safety protection structure of claim 1, wherein: switch mechanism (9) include base (91) of rigid coupling at sill (2) surface, the slip joint has arc contact board (92) on base (91), install flexure strip (9101) between arc contact board (92) and base (91), pass through screw fixed mounting base end cover (93) in the both sides of base (91).
7. The safety protection structure of claim 6, wherein: base (91) inside is equipped with the cavity structure that the cross-section is the rectangle, has seted up logical groove (9104) towards one side of arc contact board (92) on base (91), it has T type piece (9201) to run through in logical groove (9104), the one end and arc contact board (92) rigid coupling of T type piece (9201), the other end is located base (91), it breaks away from protruding board (9103) of cavity to lead to groove (9104) both sides to be equipped with restriction T type piece (9201).
8. The safety protection structure of claim 7, wherein: protruding board (9103) inner rigid coupling contact lug (9102), correspond the position rigid coupling contact concave block (9202) of contact lug (9102) on T type piece (9201), contact lug (9102) cooperatees with contact concave block (9202), and is provided with the electrode slice on both contact surfaces respectively, electrode slice series connection is on the power supply circuit of first electro-magnet (61) and second electro-magnet (62).
9. The safety shield structure of any one of claims 6-8, further comprising: the infrared emitter (7) is embedded and mounted on the sill (2), the infrared emitter (7) is powered by a power supply independent of the first electromagnet (61) and the second electromagnet (62), a point contact switch for connecting a circuit of the infrared emitter (7) is mounted between the base (91) and the arc contact plate (92), the point contact switch comprises a first electrode (101) and a second electrode (102), the first electrode (101) is located at the bottom of the base (91), the second electrode (102) is located at the bottom of the T-shaped block (9201), and when the arc contact plate (92) is extruded by a bridge compartment, the first electrode (101) and the second electrode (102) are in contact and communicated with a power supply circuit of the infrared emitter (7).
10. The safety shield structure of any one of claim 9, further comprising: one of them lateral wall of sill (2) goes up the indent and has mounting groove (205), evenly install a plurality ofly in mounting groove (205) infrared emitter (7), all infrared emitter (7) adopt series connection, and mounting groove (205) top seal has transparent glass lid (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341323.2A CN111498658B (en) | 2020-04-27 | 2020-04-27 | Hoistway door safety protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341323.2A CN111498658B (en) | 2020-04-27 | 2020-04-27 | Hoistway door safety protection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111498658A true CN111498658A (en) | 2020-08-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607567A (en) * | 2020-12-08 | 2021-04-06 | 湖北惠天下建工科技股份有限公司 | Emergency exit structure for elevator with buffering protect function |
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| JP2019119592A (en) * | 2018-01-10 | 2019-07-22 | 株式会社日立ビルシステム | Car and elevator |
| CN209974036U (en) * | 2019-04-22 | 2020-01-21 | 广东省特种设备检测研究院东莞检测院 | Elevator car locking device |
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| US1359641A (en) * | 1920-04-02 | 1920-11-23 | George M Williams | Elevator |
| JPH0891748A (en) * | 1994-09-27 | 1996-04-09 | Mitsubishi Denki Bill Techno Service Kk | Elevator sill protecting device |
| JPH1081476A (en) * | 1996-09-06 | 1998-03-31 | Mitsubishi Denki Bill Techno Service Kk | Elevator device |
| JP2004224494A (en) * | 2003-01-22 | 2004-08-12 | Mitsubishi Electric Corp | Car door device for elevator |
| JP2005082268A (en) * | 2003-09-05 | 2005-03-31 | Toshiba Elevator Co Ltd | Running clearance closing device for elevator |
| JP2011006209A (en) * | 2009-06-26 | 2011-01-13 | Mitsubishi Electric Corp | Door device for elevator |
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| CN112607567A (en) * | 2020-12-08 | 2021-04-06 | 湖北惠天下建工科技股份有限公司 | Emergency exit structure for elevator with buffering protect function |
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| CN111498658B (en) | 2022-04-01 |
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