CN113942909B - Protective device for elevator shaft and use method thereof - Google Patents
Protective device for elevator shaft and use method thereof Download PDFInfo
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- CN113942909B CN113942909B CN202111302768.0A CN202111302768A CN113942909B CN 113942909 B CN113942909 B CN 113942909B CN 202111302768 A CN202111302768 A CN 202111302768A CN 113942909 B CN113942909 B CN 113942909B
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- limiting piece
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
Abstract
The invention provides a protection device for an elevator well, which is internally provided with a lift car, and comprises: the protection piece is rotatably arranged on the side wall of the elevator shaft and used for blocking the elevator shaft, and the protection piece is arranged corresponding to the position where the car is to be stopped; one end of the limiting piece is fixedly arranged on the side wall of the elevator hoistway and is arranged at a position close to the protective piece, the other end of the limiting piece is connected with the protective piece in a clamping way, and the limiting piece can be telescopically adjusted in a direction close to or far from the protective piece; and the inductive switch is arranged on the limiting piece, the car is induced through the inductive switch, so that the limiting piece is controlled to shrink, the end part of the limiting piece, which is close to the protecting piece, is separated from the protecting piece, the protecting piece is pushed by the car so as to drive the protecting piece to rotate, and the car passes through the protecting piece. The invention can enable the user to drop to the top surface of the protective piece, thereby avoiding directly dropping to the bottommost part of the elevator well and improving the safety of the elevator well.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a protection device for an elevator hoistway and a use method thereof.
Background
The elevator is a vertical elevator powered by an electric motor and is provided with a box-shaped nacelle for use in multi-story buildings for taking persons or carrying goods. There are also steps, where the tread is mounted on a track for continuous running, commonly known as an escalator or a travelator. A stationary lifting device serving a prescribed floor. The vertical lift elevator has a car that travels between at least two vertical rows of rigid guide rails.
The existing elevator well generally does not have better protective measures, if the elevator door breaks down, a user can fall into the elevator well through the elevator door, if the elevator door does not have the protective measures, the elevator well can cause great damage to the user, and the problem of safety accidents can be caused in serious cases.
Disclosure of Invention
In view of the above, the invention provides a protection device for an elevator shaft and a use method thereof, which solve the technical problems that the traditional elevator shaft has no protection measure and is easy to generate safety accidents, and the elevator shaft is protected by arranging a limiting piece which is sensitive to the position of a car in the elevator shaft and a protection piece which is in control connection with the limiting piece.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a protective device for an elevator hoistway, the elevator hoistway having a car disposed therein, the protective device comprising:
the protection piece is rotatably arranged on the side wall of the elevator shaft and used for blocking the elevator shaft, and the protection piece is arranged corresponding to the position where the car is to be stopped;
one end of the limiting piece is fixedly arranged on the side wall of the elevator hoistway and is arranged at a position close to the protective piece, the other end of the limiting piece is connected with the protective piece in a clamping way, and the limiting piece can be telescopically adjusted in a direction close to or far from the protective piece; and
the induction switch is arranged on the limiting piece, the induction switch is used for inducing the car to control the limiting piece to shrink, so that the end part of the limiting piece, which is close to the protecting piece, is separated from the protecting piece, the car pushes against the protecting piece to drive the protecting piece to rotate, and the car passes through the protecting piece.
The invention further improves the protective device for the elevator shaft, which is characterized in that the side part of the protective piece is provided with a plug hole corresponding to the position of the limiting piece;
the limiting piece comprises a cylinder fixed on the side wall of the elevator shaft, the cylinder is provided with a transmission shaft protruding outwards, the transmission shaft is inserted into the plug hole, and the transmission shaft is contracted through the cylinder to drive the transmission shaft to move in the direction away from the plug hole in the axial direction, so that the transmission shaft is pulled out from the plug hole, and the connection between the transmission shaft and the plug hole is disconnected.
The invention further improves the protecting device for the elevator well, which is characterized in that the protecting piece comprises a fixed plate fixedly connected with the elevator well, a second reset spring, a fixed block and a sealing plate, wherein one end of the second reset spring is fixedly connected with the fixed plate, the fixed block is fixedly connected with the other end of the second reset spring, the sealing plate is fixedly connected with the fixed block, and the inserting hole is formed in the side part of the fixed block, which is close to the air cylinder;
through the car to be close to the direction removal of shrouding to the ejector shrouding makes the shrouding rotate and drives second reset spring and take place elastic deformation, after the car passes through the protector, the second reset spring drives the shrouding and resets.
The invention further improves the protection device for the elevator well, which is characterized in that the sealing plate comprises a protection frame fixedly connected with the fixed block and a protection net fixed on the protection frame and staggered in a net shape.
The invention further improves the protection device for the elevator shaft, wherein the insertion hole is non-circular, and the end part of the transmission shaft, which is close to the insertion hole, is matched with the shape of the insertion hole to be non-circular.
The invention further improves the protection device for the elevator shaft, which comprises a plurality of bulges fixed on the side part of the transmission shaft at intervals, wherein the inserting holes are provided with clamping grooves corresponding to the bulges;
the transmission shaft is inserted into the inserting hole, so that the protrusion is clamped in the clamping groove, and the transmission shaft and the inserting hole are fixedly connected.
The protective device for the elevator well is further improved in that the protective device also comprises a controller which is rotatably connected to the elevator well and is opposite to the inductive switch, and the controller is pushed by the car so that the controller rotates and contacts with the inductive switch, and therefore the limiting piece is triggered to shrink and adjust.
The invention further improves the protective device for the elevator well, which is characterized in that the controller comprises a connecting plate fixed to the elevator well, a first reset spring with one end fixed to the side part of the connecting plate, and a cross rod fixedly connected to the other end of the first reset spring, wherein the cross rod is parallel to the connecting plate;
through the horizontal pole rotation with contact with inductive switch, and the horizontal pole rotates and drives first reset spring and take place elastic deformation, after the car passes through the protector, first reset spring drives the horizontal pole and resets.
A method of using a protective device for an elevator hoistway, comprising the steps of:
providing a protective piece and a limiting piece, rotatably installing the protective piece on the side wall of an elevator shaft and corresponding to the position of a car to be stopped, and arranging the limiting piece at a position close to the protective piece, wherein one end of the limiting piece is connected with the protective piece in a clamping way;
when the lift car runs along the lift well, the lift car moves to a position close to the protective piece, the inductive switch senses the lift car to control the limiting piece to shrink, so that the end part of the limiting piece close to the protective piece is separated from the protective piece, the lift car pushes the protective piece to drive the protective piece to rotate, and the lift car passes through the protective piece;
when the car breaks down, the car stops in the elevator well, and inductive switch responds to the car, and the locating part is connected with the guard piece joint for the guard piece shutoff is lived the elevator well, thereby can catch the personnel that fall out from the car.
Further, the limiting piece comprises a cylinder fixed in the elevator shaft, the cylinder is provided with a transmission shaft protruding outwards, the side part of the protecting piece is provided with a plug hole corresponding to the position of the limiting piece, and the transmission shaft is plugged in the plug hole;
the inductive switch senses the car to control the cylinder to shrink, so that the transmission shaft moves in the direction away from the plug hole, and the transmission shaft and the plug hole are disconnected.
According to the protective device for the elevator shaft, the position of the elevator car is sensed by the sensing switch, and the limiting piece is disconnected with the protective piece, so that the elevator car can push the protective piece to open the elevator shaft for convenient passing, and due to improper operation, when a user falls down through the elevator car door, the limiting piece is connected with the protective piece under control, so that the user can fall to the top of the protective piece, the situation that the user falls down to the lower part of the elevator shaft is avoided, and the use safety of the elevator car is improved.
Drawings
Fig. 1 is a side cross-sectional view of the protective device for an elevator hoistway of the present invention.
Fig. 2 is a top view of a controller for use in the protective device of an elevator hoistway of the present invention.
Fig. 3 is a top cross-sectional view of the guard in the guard for an elevator hoistway of the present invention.
Fig. 4 is a cross-sectional view of a stop lever in the protective device for an elevator hoistway of the present invention.
Fig. 5 is a cross-sectional view of a limit disk in the protective device for an elevator hoistway of the present invention.
Fig. 6 is a side view of a guard in the guard for an elevator hoistway of the present invention.
The correspondence of the reference numerals with the components is as follows: hoistway 1, guide rail 11, car 12, hoisting machine 13, control box 14, mounting plate 15, inductor 2, controller 3, fixing bolt 31, connecting plate 32, first return spring 33, cross bar 34, first sheave 35, fastening nut 36, stopper 4, cylinder 41, drive shaft 42, plug section 43, seal shaft 44, fixing plate 45, protector 5, second sheave 51, protective frame 52, protective net 53, fixing block 54, fixing plate 61, second return spring 62.
Detailed Description
In order to facilitate the understanding of the present invention, the following description is provided with reference to the drawings and examples.
Referring to fig. 1 to 3, the present invention provides a protection device for an elevator hoistway, in which a car 12 is disposed in an elevator hoistway 1, the protection device comprising:
the protection piece 5 is rotatably arranged on the side wall of the elevator shaft 1 and used for blocking the elevator shaft, and the protection piece 5 is arranged corresponding to the position where the car 12 is to be stopped;
one end of the limiting piece 4 is fixedly arranged on the side wall of the elevator hoistway 1 and is arranged at a position close to the protecting piece 5, the other end of the limiting piece 4 is connected with the protecting piece 5 in a clamping way, and the limiting piece 4 can be telescopically adjusted in a direction close to or far from the protecting piece 5; and
the inductive switch arranged on the limiting piece 4 senses the car 12 through the inductive switch to control the limiting piece 4 to shrink, so that the end part of the limiting piece 4, which is close to the protecting piece 5, is separated from the protecting piece 5, the protecting piece 5 is pushed by the car 12 to drive the protecting piece 5 to rotate, and the car 12 passes through the protecting piece 5.
Preferably, as shown in fig. 1, the elevator shaft 1 includes a guide rail 11 extending along the elevator shaft 1, a mounting plate 15 provided at the top of the guide rail 11, a car 12 slidably provided at the guide rail 11, an inductor 2 installed at intervals in the elevator shaft 1 and corresponding to a position where the car 12 is to be parked, a hoist 13 connected to the car 12 and mounted at the top of the mounting plate 15, and a control box 14 provided at the top of the mounting plate 15, a rope of the hoist 13 is connected to the top of the car 12, the hoist 13 and the control box 14 are electrically connected, the rope is tightened by the hoist 13 to lift the car 12, the rope is loosened by the hoist 13 to lower the car 12, and after the car is moved to a corresponding floor, the car is induced by the inductor 2 to enable the car 12 to be parked.
Preferably, the limiting member 4 is electrically connected to the control box 14.
According to the protective device for the elevator shaft, the position of the elevator car 12 is sensed by the sensing switch, so that the limiting piece 4 is disconnected with the protective piece 5, the elevator shaft 1 is conveniently opened by pushing the protective piece 5 by the elevator car 12, when a person falls through the elevator car door due to improper operation, the limiting piece 4 and the protective piece 5 are connected in a control mode, the user can fall to the top of the protective piece 5, the situation that the person falls to the lower side of the elevator shaft 1 is avoided, and the use safety of the elevator car 12 is improved.
In a preferred embodiment of the protection device for an elevator hoistway, as shown in fig. 3, a plugging hole is formed at a side part of a protection piece 5 corresponding to a position of a limit piece 4; the limiting piece 4 comprises a cylinder 41 fixed in an elevator shaft, the cylinder 41 is provided with a transmission shaft 42 protruding outwards, the transmission shaft 42 is inserted into the plug hole, and the cylinder 41 contracts to drive the transmission shaft 42 to move in a direction away from the plug hole, so that the transmission shaft 42 is pulled out of the plug hole, and the connection between the transmission shaft 42 and the plug hole is disconnected.
Further, as shown in fig. 6, the protection member 5 includes a fixing plate 61 fixedly connected to the elevator hoistway 1, a second return spring 62 having one end fixedly connected to the fixing plate 61, a fixing block 54 fixedly connected to the other end of the second return spring 62, and a sealing plate fixedly connected to the fixing block 54, and the insertion hole is formed on a side portion of the fixing block 54 close to the cylinder 41;
the car 12 moves towards the direction close to the sealing plate so as to push the sealing plate, so that the sealing plate rotates and drives the second return spring 62 to elastically deform, and when the car 12 passes through the protection piece 5, the second return spring 62 drives the sealing plate to return.
Further, the sealing plate includes a protective frame 52 fixedly connected to the fixing block 54 and a protective net 53 fixed to the protective frame 52 and staggered in a net shape, so as to prevent users from falling from the gap of the protective frame 52.
Preferably, the second pulley 51 fixed to the end of the protective frame 52 away from the fixing plate 61 is further included, and friction noise between the protective 5 and the car 12 can be reduced by the second pulley 51 contacting with the car.
Further, the insertion hole is non-circular, and the end of the transmission shaft 42 near the insertion hole is matched with the shape of the insertion hole.
Specifically, as shown in fig. 4 and 5, the connector further comprises a plurality of protrusions fixed on the side part of the transmission shaft 42 at intervals, and the inserting holes are provided with clamping grooves corresponding to the protrusions;
the plug hole is inserted into the plug hole through the transmission shaft 42, so that the protrusion is clamped in the clamping groove, the transmission shaft 42 and the plug hole are fixedly connected, slipping is avoided after the transmission shaft 42 and the plug hole are connected, the protection piece 5 is rotated, a person falling to the protection piece 5 is caused to slide, and stability of the protection piece 5 is improved.
Preferably, as shown in fig. 3, the portion of the transmission shaft 42 to be inserted into the insertion hole forms an insertion section 43, and the protrusion is correspondingly fixed to the insertion section 43.
Preferably, the sealing device further comprises a sealing shaft 44 sleeved on the transmission shaft 42 and attached to the air cylinder 41, so as to prevent the transmission shaft 42 from excessively shrinking, so that the bulge is damaged, and the normal use of the limiting piece 4 is affected.
Specifically, the elevator car further includes a fixing plate 45 fixed to a side portion of the cylinder 41, and is fixedly connected to the elevator shaft 1 via the fixing plate 45 so as to fix the stopper 4.
Further, as shown in fig. 1, the elevator further comprises a controller 3 rotatably connected to the elevator shaft 1 and arranged opposite to the inductive switch, and the controller 3 is pushed by the car 12 so that the controller 3 rotates and contacts with the inductive switch, thereby triggering the shrinkage adjustment of the limiting piece 4.
Preferably, as shown in fig. 1, the top and bottom of the guard 5 are respectively provided with a controller 3, so as to control the rotation of the guard 5, thereby facilitating the passing of the car 12.
Preferably, a first controller for controlling the cylinder 41 to shrink after contacting the cross rod 34 and a delay control for controlling the cylinder 41 to stretch when the cross rod 34 is not contacted with the inductive switch are arranged in the inductive switch, the delay time of the delay control corresponds to the time of the car 12 passing through the protective piece 5, when the cross rod 34 is pushed by the car 12 to rotate downwards and contacts with the inductive switch, the first controller is started to control the cylinder 41 to shrink, when the cross rod 34 is not stressed, the delay control is started, the car 12 is pushed by the car to rotate and smoothly pass, the second reset spring 62 drives the sealing plate to reset, and at the moment, the delay is ended, and the cylinder 41 stretches.
Specifically, as shown in fig. 2, the controller 3 includes a connection plate 32 fixed to the elevator hoistway 1, a first return spring 33 having one end fixed to the connection plate 32, and a cross bar 34 fixedly connected to the other end of the return spring 33, the cross bar 34 being parallel to the connection plate 32;
the cross bar 34 rotates to be in contact with the induction switch, and the cross bar 34 rotates to drive the first return spring 33 to elastically deform, and when the car 12 passes through the protection piece 5, the first return spring 33 drives the cross bar 34 to return.
The cross bar 34 is abutted against the car 12, so that the cross bar 34 rotates around the first return spring 33 and drives the first return spring 33 to elastically deform, and when the car 12 passes through the protection piece 5, the first return spring 33 rebounds to drive the cross bar 34 to return, and the cross bar 34 is in control connection with the air cylinder 41.
Preferably, the connecting plate 32 is fixed to the side wall of the elevator hoistway 1 by the fixing bolt 31, and the first return spring 33 and the cross bar 34 are connected by the fastening nut 36.
Specifically, the elevator car 12 pushes the cross bar 34 by the first pulley 35 fixedly connected to the end of the cross bar 34 far away from the first return spring 33, so that the first return spring 33 is elastically deformed, and the cross bar 34 rotates so as to be in control connection with the limiting piece 4, and friction noise between the protecting piece 5 and the elevator car 12 can be reduced when the first pulley 35 is in contact with the elevator car 12.
In the specific embodiment of the protection device for the elevator well, taking the downward operation of the elevator car 12 as an example, the elevator 13 is used for controlling the elevator car 12 to move downwards, when the elevator car 12 moves to a to-be-stopped position, the elevator car 12 and the sensor 2 sense and stop moving, the control box 14 controls the elevator 13 to stop so as to stop the elevator car 12, and a user walks out from the door of the elevator car 12;
when the car 12 normally runs downwards, the car 12 contacts with the cross rod 34 of the controller 3 to drive the cross rod 34 to rotate downwards under the force of force, so that the cross rod 34 contacts with the inductive switch, the inductive switch controls the cylinder 41 to shrink to drive the transmission shaft 42 to move in a direction away from the insertion hole, so that the insertion section 43 of the transmission shaft 42 is pulled out from the insertion hole, and the car 12 pushes against the sealing plate to drive the sealing plate to rotate downwards and open the elevator hoistway 1, and the car 12 can conveniently pass through;
when the car 12 passes, the first return spring 33 rebounds to drive the cross rod 34 to rotate and return to the horizontal position, the second return spring 62 rebounds to rotate to close the elevator shaft 1, and the delay control in the inductive switch starts and controls the transmission shaft 42 of the air cylinder 41 to stretch so that the plug section 43 is inserted into the plug hole to connect the limiting piece 4 and the protecting piece 5;
when the door of the car 12 fails, a user falls to the top surface of the protective piece 5 from the car 12, so that the user can be saved by a rescue worker, the user is prevented from falling to the bottom of the elevator shaft 1 directly, and dangerous accidents are avoided.
A method of using a protective device for an elevator hoistway, comprising the steps of:
providing a protecting piece 5 and a limiting piece 4, rotatably installing the protecting piece 5 on the side wall of the elevator shaft 1 and corresponding to the position where the car 12 is to be stopped, and arranging the limiting piece 4 at a position close to the protecting piece 5 and connecting one end of the limiting piece with the protecting piece 5 in a clamping way;
when the car 12 runs along the elevator hoistway 1, the car 12 moves to a position close to the guard 5, the inductive switch senses the car 12 to control the limiting piece 4 to shrink, so that the end part of the limiting piece 4 close to the guard 5 is separated from the guard 5, and the car 12 pushes the guard 5 to drive the guard 5 to rotate, and the car 12 passes through the guard 5;
when car 12 breaks down, car 12 stops in elevator well 1, and inductive switch responds to car 12, and locating part 4 and guard piece 5 joint are connected for guard piece 5 shutoff elevator well 1, thereby can catch the personnel that fall out from car 12.
Further, the limiting piece 4 comprises a cylinder 41 fixed in the elevator shaft 1, the cylinder 41 is provided with a transmission shaft 42 protruding outwards, a plug hole is formed in the side part of the protecting piece 5 corresponding to the position of the limiting piece 4, and the transmission shaft 42 is plugged in the plug hole;
the inductive switch senses the car 12 to control the cylinder 41 to shrink, so that the transmission shaft 42 moves away from the plug hole, and the connection between the transmission shaft 42 and the plug hole is disconnected.
The specific implementation case of the protection device for the elevator well comprises the following steps that in the case of downward operation of the elevator car 12, the elevator 13 is used for controlling the elevator car 12 to move downwards, when the elevator car 12 moves to a to-be-stopped position, the sensor 2 senses that the elevator car 12 stops operating so as to stop the elevator car 12, and a user walks out from a door of the elevator car 12;
when the car 12 normally runs downwards, the car 12 contacts with the cross rod 34 of the controller 3 to drive the cross rod 34 to rotate downwards under the force of force, so that the cross rod 34 contacts with the inductive switch, the inductive switch controls the cylinder 41 to shrink to drive the transmission shaft 42 to move away from the inserting hole, so that the inserting section 43 of the transmission shaft 42 is pulled out of the inserting hole, the car 12 pushes the sealing plate to drive the sealing plate to rotate downwards and open the elevator shaft 1, and the car 12 passes through the sealing plate;
when the car 12 passes through, the first return spring 33 rebounds to drive the cross rod 34 to rotate and return to the horizontal position, the second return spring 62 rebounds to rotate to close the elevator shaft 1, the delay control in the inductive switch starts and controls the air cylinder 41 to extend so that the transmission shaft 42 moves towards the direction close to the plug hole, and the plug section 43 is inserted into the plug hole, so that the limiting piece 4 and the protecting piece 5 are connected, and the sealing plate is prevented from rotating;
when the door of car 12 breaks down, car 12 stops in elevator well 1, and inductive switch responds to car 12, and locating part 4 and guard piece 5 joint are connected for guard piece 5 shutoff live elevator well 1, thereby can catch the personnel that fall out from car 12, avoided the user to directly fall to the bottom of elevator well 1, avoid taking place dangerous accident.
The present invention has been described in detail with reference to the drawings and embodiments, and one skilled in the art can make various modifications to the invention based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the invention, which is defined by the appended claims.
Claims (5)
1. A protective device for an elevator hoistway, the elevator hoistway having a car disposed therein, the protective device comprising:
the protection piece is rotatably arranged on the side wall of the elevator well and used for blocking the well, the protection piece is arranged corresponding to the position where the lift car is to be stopped, the protection piece comprises a fixed plate fixedly connected with the elevator well, a second reset spring, a fixed block and a sealing plate, one end of the second reset spring is fixedly connected with the fixed plate, the fixed block is fixedly connected with the other end of the second reset spring, the sealing plate is fixedly connected with the fixed block, the lift car moves towards the direction close to the sealing plate to push the sealing plate, the sealing plate rotates and drives the second reset spring to elastically deform, and after the lift car passes through the protection piece, the second reset spring drives the sealing plate to reset;
one end of the limiting piece is fixedly arranged on the side wall of the elevator hoistway and is arranged at a position close to the protective piece, the other end of the limiting piece is connected with the protective piece in a clamping way, and the limiting piece can be telescopically adjusted in a direction close to or far from the protective piece;
the side part of the protective piece is provided with a plug hole corresponding to the position of the limiting piece;
the limiting piece comprises a cylinder fixed on the side wall of the elevator shaft and a transmission shaft protruding outwards, the insertion hole is formed in the side part of the fixed block, close to the cylinder, the transmission shaft is inserted into the insertion hole, and the transmission shaft is driven to move in the direction away from the insertion hole through shrinkage of the cylinder, so that the transmission shaft is pulled out of the insertion hole, and connection between the transmission shaft and the insertion hole is broken;
the induction switch is arranged on the limiting piece, the car is induced through the induction switch so as to control the limiting piece to shrink, so that the end part, close to the protecting piece, of the limiting piece is separated from the protecting piece, the protecting piece is pushed by the car so as to drive the protecting piece to rotate, and the car passes through the protecting piece; and
the controller is rotatably connected to the elevator shaft and is opposite to the inductive switch, and the controller is pushed by the car so that the controller rotates and contacts with the inductive switch, and therefore the limiting piece is triggered to shrink and adjust;
the controller comprises a connecting plate fixed to the elevator shaft, a first reset spring, a cross rod and a control unit, wherein one end of the first reset spring is fixed to the side part of the connecting plate, the cross rod is fixedly connected to the other end of the first reset spring, and the cross rod is parallel to the connecting plate;
through the horizontal pole rotate in order to with inductive switch contacts, just the horizontal pole rotates and drives first reset spring and take place elastic deformation, works as after the car passes through the protector, first reset spring drives the horizontal pole resets.
2. The protective device for an elevator hoistway according to claim 1, wherein the sealing plate includes a protective frame fixedly connected to the fixing block and a protective net fixed to the protective frame and staggered in a mesh shape.
3. The protective device for an elevator hoistway of claim 1, wherein the mating hole is non-circular and an end of the drive shaft proximate the mating hole matches the shape of the mating hole.
4. A protective device for an elevator hoistway according to claim 3, further comprising a plurality of protrusions fixed at intervals to a side portion of the drive shaft, the insertion hole being provided with a card slot corresponding to the protrusions;
the transmission shaft is inserted into the inserting hole, so that the protrusion is clamped in the clamping groove, and the transmission shaft and the inserting hole are fixedly connected.
5. A method of using the protective device for an elevator hoistway as claimed in claim 1, comprising the steps of:
providing the protection piece and the limiting piece, rotatably installing the protection piece on the side wall of the elevator shaft and corresponding to the position of the lift car to be stopped, and arranging the limiting piece at a position close to the protection piece, wherein one end of the limiting piece is connected with the protection piece in a clamping way;
when the lift car runs along the lift well, the lift car moves to a position close to the protection piece, the inductive switch senses the lift car to control the air cylinder to shrink, so that the transmission shaft moves in a direction away from the plug hole in an axial direction, the transmission shaft is disconnected from the plug hole, the lift car pushes the protection piece to drive the protection piece to rotate, and the lift car passes through the protection piece;
when the car breaks down, the car is stopped in the elevator shaft, the inductive switch senses that the car is not reached, and the limiting piece is connected with the protecting piece in a clamping mode, so that the protecting piece seals the elevator shaft, and people falling out of the car can be caught.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302768.0A CN113942909B (en) | 2021-11-05 | 2021-11-05 | Protective device for elevator shaft and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302768.0A CN113942909B (en) | 2021-11-05 | 2021-11-05 | Protective device for elevator shaft and use method thereof |
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| CN113942909A CN113942909A (en) | 2022-01-18 |
| CN113942909B true CN113942909B (en) | 2023-05-09 |
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