CN113086816B - Open elevator layer door secondary protection device of - Google Patents
Open elevator layer door secondary protection device of Download PDFInfo
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- CN113086816B CN113086816B CN202110351262.2A CN202110351262A CN113086816B CN 113086816 B CN113086816 B CN 113086816B CN 202110351262 A CN202110351262 A CN 202110351262A CN 113086816 B CN113086816 B CN 113086816B
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- plate
- door
- rod
- stop
- rotating
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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
- B66B13/20—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
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses a secondary protection device for opening an elevator landing door, which comprises a stop device arranged on a landing door guide rail frame assembly and a plate beating device arranged on an upper sill of a door machine; the stopping device comprises a rotary connecting mechanism, a rotating plate arranged on the rotary connecting mechanism, a stopping rod arranged on the rotating plate, a traction piece connected with the rotating plate and a stopping block; when the lift car is not at the position of the floor, the traction piece is pulled to enable the rotating plate to rotate, so that the stop rod can avoid the stop block, and the floor door is continuously opened; when the lift car is at the position of the floor, the rotating plate touches the striking plate device to rotate when the door is opened, so that the stop rod can avoid the stop block to continuously open the floor door. Has the advantages that: the secondary door opening process is realized, and the safety effect that the door is mechanically and forcibly locked, and secondary unlocking is carried out after the safety is confirmed again is achieved, so that the door can be opened; simple structure, make full use of the well space, the cost is lower, commonality and suitability.
Description
Technical Field
The invention relates to the technical field of elevator landing door safety, in particular to an elevator landing door opening safety protection device.
Background
Elevator landing doors serve as an important component of elevator door systems for separating the hoistway from the corridor. In the elevator use, there are operations such as installation routine inspection and maintenance debugging usually, and the maintenance installer often needs to enter the car roof after manually opening the elevator landing door and carries out maintenance operation to landing door or well spare, because current elevator door system does not have secondary protection device, elevator installation maintenance personnel can probably not confirm the position of car because of neglecting when opening elevator landing door, take place the erroneous judgement and stride into when the car is not in this layer position to take place to step on empty the incident of falling the well.
Disclosure of Invention
The invention aims to provide a secondary protection device for opening an elevator landing door, which aims to solve the problem that when a car is not positioned at the position of the elevator landing, a maintenance installer mistakenly judges and steps into the car, so that the car falls into a hoistway in case of being stepped on the ground.
In order to achieve the purpose, the invention adopts the following technical scheme:
a secondary protection device for opening an elevator landing door comprises a stop device arranged on a landing door guide rail frame assembly and a plate beating device arranged on an upper sill of a door machine;
the stopping device comprises a rotary connecting mechanism, a rotating plate arranged on the rotary connecting mechanism, a stopping rod arranged on the rotating plate, a traction piece connected with the rotating plate and a stopping block;
the stop block is positioned on the door opening stroke track of the stop rod, and when the lift car is not at the position of the floor, the traction piece is pulled to rotate the rotating plate, so that the stop rod can avoid the stop block and continue to open the floor door;
when the car is in this layer position, hit the board device and be located the orbit of the stroke of opening the door of rotor plate, when opening the door, the rotor plate touches and hits the board device and takes place to rotate, can make the stop lever avoid the stop block, continues to open the layer door.
Furthermore, the rotary connecting mechanism comprises a bracket, a key body mounting nut, a rotating rod, a C-shaped buckle, a buckle torsional spring, a gasket, a rotating rod mounting nut and a guide hook, which are arranged on the landing door guide rail frame component;
the key body is installed on the support through connecting the key body installation nut, the lower connecting end of the rotating rod is installed in the key body, the C-shaped buckle is installed on the middle part of the rotating rod and located above the key body, the buckle torsion spring is sleeved outside the rotating rod and located above the C-shaped buckle, the upper end of the buckle torsion spring is connected to the rotating plate, and the lower end of the buckle torsion spring is connected to the support; the upper connecting end of the rotating rod is sequentially connected with the gasket, the rotating plate and the rotating rod mounting nut from bottom to top, so that the rotating plate is connected to the rotating rod;
the guide hook is connected to the support and located on one side of the opening direction of the rotating plate, one end of the traction piece is connected to the rotating plate, and the free end of the traction piece penetrates through the guide hook.
Furthermore, a mounting plate is arranged at the upper end of the support, a key body mounting hole and a guide hook mounting hole matched with the guide hook are formed in the mounting plate, the guide hook mounting hole is located on one side of the mounting plate in the door opening direction, a fixing plate is arranged on one side of the mounting plate close to the landing door, and a fixing hole matched with the lower end of the buckle torsion spring is formed in the fixing plate;
the upper end of the buckle torsion spring is provided with a fixed hook which hooks one side of the rotating plate close to the landing door; the lower end of the bracket is provided with a mounting hole connected to the layer door guide rail frame component.
Furthermore, a limiting block and a key body thread are arranged on the outer side of the key body, the key body thread is positioned above the limiting block, the outer diameter of the limiting block is larger than the diameter of the key body mounting hole, the part of the key body provided with the key body thread penetrates through the key body mounting hole and then is connected with the key body mounting nut, and the key body is fixedly mounted in the key body mounting hole;
the key body is provided with a rotating rod connecting hole, the lower connecting end of the rotating rod is matched with the rotating rod connecting hole, and the lower connecting end of the rotating rod is connected into the rotating rod connecting hole.
Furthermore, a boss matched with the step in the key body rotating hole is arranged at the lower end of the rotating rod;
the middle part of the rotating rod is provided with an installation groove matched with the C-shaped buckle, and the C-shaped buckle is installed in the installation groove;
the buckle torsional spring cover is on the dwang, and outside the buckle torsional spring was worn out to dwang upper portion link, two relative sides of dwang upper portion link were vertical plane, and two relative sides are the cambered surface in addition, be equipped with the dwang mounting hole that matches with dwang upper portion link on the rotor plate.
Furthermore, one side of the rotating plate in the door closing direction is connected with the stop rod, one side of the rotating plate in the car direction is provided with a stop part, and the distance between the connecting end at the upper part of the rotating rod and the free end of the stop part is smaller than the distance between the connecting end at the upper part of the rotating rod and the guide hook; when the lift car is at the position of the floor, the plate beating device is positioned on the door opening travel track of the stopping part;
and a guide hook thread mounting hole matched with the guide hook is formed in the rotating plate, and the guide hook is in threaded connection with the guide hook thread mounting hole.
Furthermore, the striking plate device comprises an angle iron mounting frame, a striking plate and a connecting frame which are connected to the top of the upper sill of the portal crane, the striking plate is connected to the angle iron mounting frame through the connecting frame, and the striking plate is positioned on the door opening travel track of the stop part;
the distance between the stop rod and the stop block is the distance that a human body can not pass through the landing door to enter the elevator shaft but can extend into the elevator shaft;
when the car is at the position of the floor, the distance between the stop rod and the stop block is larger than the distance between the stop part and the striking plate.
Furthermore, the lower end of the bracket is connected to a door hanging plate of the landing door guide rail frame assembly, the rotary connecting mechanism is higher than the landing door guide rail frame assembly, the lower end of the stop rod is lower than the mounting plate, and the stop block is mounted on the landing door guide rail frame assembly;
and an avoiding chamfer is arranged at the position of the mounting plate between the stop rod and the fixing plate.
Furthermore, the stopping part protrudes towards the car direction compared with the mounting plate, a traction piece mounting hole is formed in the rotating plate and is positioned in the area between the stopping part and the top end of the upper part of the rotating rod, a traction piece connecting piece is mounted on the traction piece mounting hole, and one end of the traction piece is connected to the traction piece connecting piece;
the pulling piece is a pulling rope made of soft materials, and the free end of the pulling rope penetrates through the guide hook and then is fixed on the layer door plate.
Furthermore, the stop block is in a V shape or a C shape, and the opening part of the stop block faces the door closing direction;
the stop block is arranged opposite to the plate beating device.
The invention has the advantages that:
1. the secondary door opening process is realized, when the lift car is not at the position of the floor, the installer is warned when the lift car is opened for the first time, and the landing door is opened after the position of the lift car is confirmed again, so that the safety effect that the lift car can enter after mechanical forced locking and safety confirmation are realized.
2. The secondary protection function is realized by newly adding the stop device and the knock-out plate device on the existing layer door guide rail frame assembly and door machine products, and the secondary protection device has the advantages of simple structure, lower cost, strong universality and applicability and convenient installation and operation.
3. The stopping device provided by the invention realizes the stopping function through the mechanical structure of the matching of the stopping rod and the stopping block, the structure fully utilizes the space of the well, the assembly is not required to be carried out by newly increasing the size of the well, and the rotating plate is connected with the bracket by adopting the buckle torsional spring, so that the resetting of the rotating plate after the action is more stable and the rotating plate is easy to replace.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention:
FIG. 1 is a schematic view of the overall construction installation of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the present invention;
FIG. 3 is a schematic top view of the structure of the present invention;
FIG. 4 is a schematic view of the mounting of the striking plate device;
FIG. 5 is a schematic view of the stop assembly installation;
FIG. 6 is an enlarged view of the stop assembly;
FIG. 7 is a schematic view of the overall structure of the stopper device;
FIG. 8 is a schematic view of a door-directional structure of a partial structure of the stopper device;
FIG. 9 is a schematic view of a door machine direction structure of a partial structure of the stopping device;
FIG. 10 is an exploded view of a portion of the retainer;
FIG. 11 is a schematic view of the mounting structure of the rotating lever and the key body;
fig. 12 is a top view of the key body.
1 stop device, 11 bracket, 111 mounting plate, 112 key body mounting hole, 113 guide hook mounting hole, 114 fixing plate, 115 fixing hole, 116 bracket mounting hole, 117 avoidance chamfer, 12 rotating plate, 121 rotating rod mounting hole, 122 stop part, 13 buckle torsion spring, 131 buckle torsion spring lower end, 132 fixing hook, 14 stop rod, 15 stop block, 16 pull rope, 17 guide hook, 18 rotating rod, 181 rotating rod mounting nut, 182 rotating rod lower connecting end, 1821 boss, 183 rotating rod upper connecting end, 1831 vertical plane, 1832 cambered surface, 184 mounting groove, 19 key body mounting nut, 191 key body, 1911 stop block, 1912C type buckle, 1913 gasket; 1914 screwing key body, 1915 rotating rod connecting hole, step 1916,2 beating plate device, 21 angle iron mounting rack, 22 beating plate; 23 connecting frames; 3 layers of door guide rail frame components and 31 door hanging plates; 4 door machines, 41 door machine upper bank.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, which are provided herein for the purpose of illustrating the invention and are not to be construed as limiting the invention.
As shown in fig. 1-12, a secondary protection device for opening a landing door of an elevator comprises a stop device 1 arranged on a landing door rail frame assembly 3, and a plate beating device 2 arranged on a door sill 41 of a door machine;
the stopping device 1 comprises a rotary connecting mechanism, a rotating plate 12 arranged on the rotary connecting mechanism, a stopping rod 14 arranged on the rotating plate 12, a traction piece connected to the rotating plate 12 and a stopping block 15;
the stop block 15 is positioned on the door opening travel track of the stop rod 14, and when the car is not at the position of the floor, the traction piece is pulled to rotate the rotating plate 12, so that the stop rod 14 can avoid the stop block 15 and continue to open the floor door;
when the car is in this layer position, hit the board device 2 and be located the orbit of the stroke of opening the door of rotor plate 12, when opening the door, rotor plate 12 touches hit board device 2 and takes place to rotate, can make stop lever 14 avoid stop block 15, continues to open the layer door.
The rotary connecting mechanism comprises a bracket 11 arranged on the layer door guide rail frame component 3, a key body 191, a key body mounting nut 19, a rotary rod 18, a C-shaped buckle 1912, a buckle torsion spring 13, a gasket 1913, a rotary rod mounting nut 181 and a guide hook 17;
the key body 191 is mounted on the bracket 11 by connecting with the key body mounting nut 19, the rotating rod lower connecting end 182 is mounted in the key body 191, the C-shaped buckle 1912 is mounted on the middle of the rotating rod and positioned above the key body 191, the buckle torsion spring 13 is sleeved outside the rotating rod 18 and positioned above the C-shaped buckle 1912, the upper end of the buckle torsion spring 13 is connected to the rotating plate 12, and the lower end thereof is connected to the bracket 11; when the rotating plate 12 is rotated by the external force, the snap torsion spring 13 is forced to rotate to form kinetic energy which can reset the rotating plate 12. The rotating rod upper connecting end 183 is sequentially connected with the gasket 1913, the rotating plate 12 and the rotating rod mounting nut 181 from bottom to top, so that the rotating plate 12 is connected to the rotating rod 18;
the guide hook 17 is connected to the support 11 and located on one side of the opening direction of the rotating plate 12, one end of the traction piece is connected to the rotating plate 12, and the free end of the traction piece penetrates through the guide hook 17.
The upper end of the bracket 11 is provided with a mounting plate 111, the mounting plate 111 is provided with a key body mounting hole 112 and a guide hook mounting hole 113 matched with the guide hook 17, the guide hook mounting hole 113 is positioned on one side of the mounting plate in the door opening direction, one side of the mounting plate 111 close to the landing door is provided with a fixing plate 114, and the fixing plate 114 is provided with a fixing hole 115 matched with the lower end 131 of the buckle torsion spring;
the upper end of the buckle torsion spring 13 is provided with a fixed hook 132, and the fixed hook 132 hooks one side of the rotating plate 12 close to the landing door; the lower end of the bracket 11 is provided with a bracket mounting hole 116 connected to the landing door rail frame assembly 3.
A limit block 1911 and a key body thread 1914 are arranged on the outer side of the key body 191, the key body thread 1914 is positioned above the limit block 1911, the outer diameter of the limit block 1911 is larger than the aperture of the key body mounting hole 112, the part of the key body 191 provided with the key body thread 1914 is connected with the key body mounting nut 19 after passing through the key body mounting hole 112, and the key body 191 is fixedly mounted in the key body mounting hole 112;
a rotating rod connecting hole 1915 is formed in the key body 191, the rotating rod lower connecting end 182 is matched with the rotating rod connecting hole 1915, and the rotating rod lower connecting end 182 is connected to the rotating rod connecting hole 1915.
The lower connecting end 182 of the rotating rod is provided with a boss 1821 matched with the step 1916 in the rotating hole of the key body;
the middle part of the rotating rod is provided with a mounting groove 184 matched with the C-shaped buckle 1912, and the C-shaped buckle 1912 is mounted in the mounting groove 184;
the buckle torsional spring 13 is overlapped on the dwang 18, outside the buckle torsional spring 13 was worn out to dwang upper portion link 183, two relative sides of dwang upper portion link 183 are vertical plane 1831, and two other relative sides are cambered surface 1832, be equipped with the dwang mounting hole 121 that matches with dwang upper portion link 183 on the rotor plate 12.
One side of the door closing direction of the rotating plate 12 is connected with the stop rod 14, one side of the car direction of the rotating plate 12 is provided with a stop part 122, and the distance between the upper connecting end 183 of the rotating rod and the free end of the stop part 122 is smaller than the distance between the upper connecting end of the rotating rod and the guide hook 17; when the cage is at the position of the floor, the striking plate device 2 is positioned on the door opening travel track of the stopping part 122;
the guide hook mounting hole is a guide hook screw mounting hole, and the guide hook 17 is screwed in the guide hook screw mounting hole 123.
The striking plate device 2 comprises an angle iron mounting frame 21, a striking plate 22 and a connecting frame 23, wherein the angle iron mounting frame 21, the striking plate 22 and the connecting frame 23 are connected to the top of an upper sill of a portal crane, the striking plate 22 is connected to the angle iron mounting frame 21 through the connecting frame 23, and the striking plate 22 is located on a door opening travel track of a stopping part 122;
the distance between the stop rod 14 and the stop block 15 is the distance that a human body can not pass through the landing door to enter the elevator shaft, but can extend into the elevator shaft, namely the safety distance;
when the car is at the position of the floor, the distance between the stop rod 14 and the stop block 15 is larger than the distance between the stop part 122 and the striking plate 22.
The lower end of the bracket 11 is connected to a door hanging plate 31 of the landing door guide rail frame assembly 3, the rotary connecting mechanism is higher than the landing door guide rail frame assembly 3, the lower end of the stop rod 14 is lower than the mounting plate 111, and the stop block 15 is mounted on the landing door guide rail frame assembly 3;
the mounting plate 111 is provided with a relief corner 117 at a position between the stopper rod 14 and the fixing plate 114 so as not to hinder the rotation of the stopper rod 14.
The stopping part 122 protrudes towards the car direction compared with the mounting plate 111, a traction piece mounting hole is formed in the rotating plate and is positioned in the area between the stopping part 122 and the top end of the upper part of the rotating rod, a traction piece connecting piece is mounted on the traction piece mounting hole, and one end of the traction piece is connected to the traction piece connecting piece;
the pulling member is a pulling rope 16 made of soft material such as soft steel wire rope, the free end of the pulling rope 16 is fixed on the landing door after passing through the guide hook 17, and the person skilled in the art can understand that the fixing mode of the free end of the pulling rope on the landing door is not to prevent the pulling rope from being able to be pulled freely.
The stop block 15 is in a V shape or a C shape, and the opening part of the stop block faces the door closing direction;
the stop block 15 is disposed opposite to the striking plate device 2, and specifically, the stop block is disposed opposite to the striking plate 22.
Description of the protection process for manually opening the landing door outside the hall:
it should be noted that the clockwise and counterclockwise directions described herein are described with reference to a top view;
when the elevator car is not at the position of the floor, the plate beating device 2 leaves the floor area along with the elevator car door motor 4, namely the door motor 4 and the floor door guide rail frame assembly 3 are in the non-closed door opening area, the plate beating device 2 cannot be in action association with the stop device 1, when an elevator installer opens the elevator floor door, the door hanging plate 31 can move towards the door opening direction, the stop device 1 can move along with the door hanging plate 31, after the stop device 1 moves for a safe distance, the stop rod 14 is in contact with the stop block 15 and cannot move towards two sides any more, and after the floor door is opened for a safe distance, the floor door cannot be opened continuously; if the elevator installer needs to continuously open the elevator landing door, the operator needs to stretch his hand to pull the pull rope 16 fixed on the landing door panel, the pull rope 16 pulls the rotating plate 12 to rotate clockwise under the action of tension, at this time, the stop rod 14 rotates clockwise along with the rotating plate 12, the stop rod 14 avoids the stop block 15, and the landing door can continuously move in the door opening direction. Thus, the action of opening the landing door for the second time is completed. The elevator safety door unlocking method has the advantages that one opening distance is set when the landing door is opened for the first time, the opening door is locked and limited when the elevator car is not at the position of the landing door, personnel are prevented from entering a well area, an alarming and reminding function can be realized for elevator installation personnel, the position of the elevator car is confirmed, the landing door is unlocked for the second time through another specific operation when the safety is ensured, and the landing door can be opened completely. The safety performance of the elevator is further improved, unnecessary safety accidents are reduced, and the beneficial effect that the door opening personnel need to confirm the safety in the well again to enter the well when opening the elevator landing door is achieved through the mechanical structure.
Description of opening the door after the elevator normally runs and stops at the landing:
when the elevator car reaches the landing position, namely the closing area, the door motor 4 and the landing door guide rail frame assembly 3 fall on the closing opening area, when the elevator landing door is opened, the door hanging plate 31 can move towards two sides, at the moment, the stop device 1 can move along with the door hanging plate 31, after the stop device 1 moves for a distance (the distance is smaller than the safety distance), the stop part 122 of the rotating plate 12 is contacted with the striking plate 22 of the striking plate device 2 fixed on the door motor 4, when the door hanging plate 31 continues to move, the rotating plate 12 rotates anticlockwise, so that the stop rod 14 synchronously rotates anticlockwise to avoid the stop block 15, the door hanging plate 31 can continue to move towards the door opening direction, and the closing is realized to realize the original normal door opening function.
When the landing door is closed, the stop rod 14 contacts with the inclined surface of the stop block 15, so that the rotating plate 12 drives the stop rod 14 to rotate and slide over the stop block 15, and the function of continuously closing the door is realized.
The elevator safety protection device can effectively prevent the elevator maintenance personnel from falling into the elevator shaft without ensuring the position of the elevator car when opening the elevator landing door, and has the advantages of simple structure, lower cost, strong reliability and convenient operation and installation.
The technical solutions provided by the embodiments of the present invention are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the descriptions of the embodiments above are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides an open secondary protection device that elevator layer door was used which characterized in that:
the stop device is arranged on the landing door guide rail frame assembly, and the plate beating device is arranged on an upper ridge of the gantry crane;
the stopping device comprises a rotary connecting mechanism, a rotating plate arranged on the rotary connecting mechanism, a stopping rod arranged on the rotating plate, a traction piece connected with the rotating plate and a stopping block;
the rotary connecting mechanism comprises a support, a key body, a rotating rod and a buckle torsional spring, the support is arranged on the landing door guide rail frame assembly, the lower connecting end of the rotating rod is arranged in the key body, the buckle torsional spring is sleeved outside the rotating rod, the upper end of the buckle torsional spring is connected to the rotating plate, and the lower end of the buckle torsional spring is connected to the support;
the stop block is positioned on the door opening stroke track of the stop rod, and when the lift car is not at the position of the floor, the traction piece is pulled to rotate the rotating plate, so that the stop rod can avoid the stop block and continue to open the floor door;
when the lift car is in the position of the floor, the striking plate device is located on the stroke track of the rotating plate, when the door is opened, the rotating plate touches the striking plate device to rotate, so that the stop rod can avoid the stop block, and the floor door is continuously opened.
2. A secondary protective device for opening a landing door of an elevator according to claim 1, wherein:
the rotary connecting mechanism comprises a bracket, a key body mounting nut, a rotary rod, a C-shaped buckle, a buckle torsional spring, a gasket, a rotary rod mounting nut and a guide hook, wherein the bracket, the key body mounting nut, the rotary rod, the C-shaped buckle, the buckle torsional spring, the gasket, the rotary rod mounting nut and the guide hook are arranged on the landing door guide rail frame assembly;
the key body is arranged on the support through connecting the key body mounting nut, the lower connecting end of the rotating rod is arranged in the key body, the C-shaped buckle is arranged on the middle part of the rotating rod and is positioned above the key body, the buckle torsional spring is sleeved outside the rotating rod and is positioned above the C-shaped buckle, the upper end of the buckle torsional spring is connected to the rotating plate, and the lower end of the buckle torsional spring is connected to the support; the upper connecting end of the rotating rod is sequentially connected with the gasket, the rotating plate and the rotating rod mounting nut from bottom to top, so that the rotating plate is connected to the rotating rod;
the guide hook is connected to the support and located on one side of the opening direction of the rotating plate, one end of the traction piece is connected to the rotating plate, and the free end of the traction piece penetrates through the guide hook.
3. A secondary protective device for opening elevator landing doors according to claim 2, wherein:
the upper end of the bracket is provided with a mounting plate, the mounting plate is provided with a key body mounting hole and a guide hook mounting hole matched with the guide hook, the guide hook mounting hole is positioned on one side of the mounting plate in the door opening direction, one side of the mounting plate close to the landing door is provided with a fixing plate, and the fixing plate is provided with a fixing hole matched with the lower end of the buckle torsion spring;
the upper end of the buckle torsion spring is provided with a fixed hook which hooks one side of the rotating plate close to the landing door; the lower end of the support is provided with a support mounting hole connected to the landing door guide rail frame component.
4. A secondary protective device for opening a landing door of an elevator according to claim 3, wherein:
the key body is fixedly arranged in the key body mounting hole;
the key body is provided with a rotating rod connecting hole, the lower connecting end of the rotating rod is matched with the rotating rod connecting hole, and the lower connecting end of the rotating rod is connected into the rotating rod connecting hole.
5. A secondary protective device for opening a landing door of an elevator according to claim 3, wherein:
a boss matched with the step in the key body rotating hole is arranged at the connecting end of the lower part of the rotating rod;
the middle part of the rotating rod is provided with an installation groove matched with the C-shaped buckle, and the C-shaped buckle is installed in the installation groove;
the buckle torsional spring cover is on the dwang, and outside the buckle torsional spring was worn out to dwang upper portion link, two relative sides of dwang upper portion link were vertical plane, and two relative sides are the cambered surface in addition, be equipped with the dwang mounting hole that matches with dwang upper portion link on the rotor plate.
6. A secondary protective device for opening a landing door of an elevator according to claim 5, wherein:
one side of the rotating plate in the door closing direction is connected with the stop rod, one side of the rotating plate in the car direction is provided with a stop part, and the distance between the connecting end of the upper part of the rotating rod and the free end of the stop part is smaller than the distance between the connecting end of the upper part of the rotating rod and the guide hook; when the lift car is at the position of the floor, the plate beating device is positioned on the door opening travel track of the stopping part;
the guide hook mounting hole is a guide hook thread mounting hole, and the guide hook is in threaded connection with the guide hook thread mounting hole.
7. A secondary protective device for opening a landing door of an elevator according to claim 6, wherein:
the striking plate device comprises an angle iron mounting frame, a striking plate and a connecting frame, wherein the angle iron mounting frame, the striking plate and the connecting frame are connected to the top of an upper sill of the door machine;
the distance between the stop rod and the stop block is the distance that a human body can not pass through the landing door to enter the elevator shaft but can extend into the elevator shaft;
when the car is at the position of the floor, the distance between the stop rod and the stop block is larger than the distance between the stop part and the striking plate.
8. A secondary protective device for opening elevator landing doors according to claim 7, wherein:
the lower end of the bracket is connected to a door hanging plate of the landing door guide rail frame assembly, the rotary connecting mechanism is higher than the landing door guide rail frame assembly, the lower end of the stop rod is lower than the mounting plate, and the stop block is mounted on the landing door guide rail frame assembly;
and an avoiding chamfer is arranged at the position of the mounting plate between the stop rod and the fixing plate.
9. A secondary protective device for opening elevator landing doors according to claim 6, wherein:
the stopping part protrudes towards the direction of the lift car compared with the mounting plate, a traction piece mounting hole is formed in the rotating plate and is positioned between the stopping part and the top end of the upper part of the rotating rod, a traction piece connecting piece is mounted on the traction piece mounting hole, and one end of the traction piece is connected to the traction piece connecting piece;
the pulling piece is a pulling rope made of soft materials, and the free end of the pulling rope penetrates through the guide hook and then is fixed on the layer door plate.
10. A secondary protective device for opening elevator landing doors according to claim 1, wherein:
the stop block is V-shaped or C-shaped, and the opening part of the stop block faces the door closing direction;
the stop block is arranged opposite to the plate beating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110351262.2A CN113086816B (en) | 2021-03-31 | 2021-03-31 | Open elevator layer door secondary protection device of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110351262.2A CN113086816B (en) | 2021-03-31 | 2021-03-31 | Open elevator layer door secondary protection device of |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113086816A CN113086816A (en) | 2021-07-09 |
| CN113086816B true CN113086816B (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110351262.2A Active CN113086816B (en) | 2021-03-31 | 2021-03-31 | Open elevator layer door secondary protection device of |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113682928B (en) * | 2021-08-25 | 2023-03-07 | 日立电梯（中国）有限公司 | Elevator layer door lock structure |
| CN114104927B (en) * | 2021-09-30 | 2023-05-12 | 日立电梯（中国）有限公司 | Elevator door structure and elevator |
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