CN111634790A - Elevator positioning and protecting device and method thereof - Google Patents
Elevator positioning and protecting device and method thereof Download PDFInfo
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- CN111634790A CN111634790A CN202010543250.5A CN202010543250A CN111634790A CN 111634790 A CN111634790 A CN 111634790A CN 202010543250 A CN202010543250 A CN 202010543250A CN 111634790 A CN111634790 A CN 111634790A
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- 238000000034 method Methods 0.000 title claims description 15
- 230000004224 protection Effects 0.000 claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims description 30
- 230000006698 induction Effects 0.000 claims description 19
- 230000008093 supporting effect Effects 0.000 claims description 10
- 230000001939 inductive effect Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003211 malignant effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
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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
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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
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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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
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- Automation & Control Theory (AREA)
- Elevator Control (AREA)
Abstract
The application relates to an elevator location and protection device, include: the mounting seat is used for being fixed on one side of a bottom plate of the elevator car and comprises a fixing plate, and the fixing plate is provided with a jack; the bolt is movably arranged on the mounting seat and is connected with a driving device; the limiting plates are used for being fixed on one side of an elevator shaft of a building floor, and the limiting plates are arranged above and below each floor in pairs; the mechanical switches are fixedly connected to the pins and positioned above and below the pins, and the mechanical switches can control the elevator car to stop lifting when being extruded; when the elevator car opens the door, the bolt can insert the jack under drive arrangement's drive and fix, and the limiting plate is located bolt and mechanical switch's lift route. When the elevator breaks down at the flat position, the elevator car lifting protection device has multiple protections of mechanical switch protection and physical protection, can ensure that the elevator car cannot lift when the elevator door is not closed, and avoids the occurrence of elevator shearing accidents.
Description
Technical Field
The application belongs to the technical field of elevators, and particularly relates to an elevator positioning and protecting device and method.
Background
At present, most elevators are provided with protection devices for transversely preventing the elevator door from clamping people, however, the protection devices for longitudinally preventing the occurrence of the shearing accident are rare, once the elevator has the shearing fault, the elevator runs abnormally when people do not enter or leave completely, people can be longitudinally sheared and extruded by the elevator running vertically and a static floor, and casualties can be caused under the condition that the protection devices for preventing the occurrence of the longitudinal shearing accident are not provided. As for the elevator seen in the real life of people at present, because no corresponding protection device exists, malignant casualty accidents are inevitably caused, the life safety of people is endangered, and a plurality of malignant accidents are reported.
The biggest reason for the occurrence of the shearing accident is that the door closing system of the elevator is not perfect, and the elevator ascends and descends when the elevator is not closed, which is the biggest problem of the occurrence of the accident.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problem that the door closing system of the elevator in the prior art is imperfect, the elevator positioning and protecting device and the method thereof are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an elevator positioning and protection device comprising:
the mounting seat is used for being fixed on one side of a bottom plate of the elevator car and comprises a fixing plate, and a jack is formed in the fixing plate;
the bolt is movably arranged on the mounting seat and is connected with a driving device;
the limiting plates are used for being fixed on one side of an elevator shaft of a building floor, and the limiting plates are arranged above and below each floor in pairs;
the mechanical switches are fixedly connected to the inserted pins and positioned above and below the inserted pins, and the mechanical switches can control the elevator car to stop lifting when being extruded;
the optical sensing assembly is fixedly connected to the mounting seat and provided with an upper sensing area and a lower sensing area, and the sensing areas are distributed on the upper side and the lower side of the mechanical switch; the optical sensing assembly only performs sensing when the elevator car opens the door, the sensing area is used for sensing the limiting plate, and the elevator car can be controlled to stop when the sensing area senses the limiting plate;
the induction positioning assembly is fixedly connected to the mounting seat and used for inducing the limiting plates above and below each floor, and when the induction positioning assembly induces the limiting plates above and below each floor, the elevator car can be controlled to stop;
the emergency switch is used for controlling the elevator car to close the door and move for a certain distance until the sensing and positioning assembly senses the upper limit plate and the lower limit plate simultaneously;
when the elevator car opens the door, the plug pin can be driven by the driving device to be inserted into the jack for fixing, and the limiting plate is positioned on the lifting path of the plug pin and the mechanical switch; when the elevator car closed the door, the bolt can be followed drive arrangement's drive in the jack is taken out, the limiting plate is not located the bolt with mechanical switch's lift route.
Preferably, according to the elevator positioning and protecting device disclosed by the invention, the mounting seat is provided with a sliding rail, and the bolt is mounted on the sliding rail through a sliding block.
Preferably, the elevator positioning and protecting device of the present invention, the driving device comprises:
the traction rope is fixedly connected with the bolt;
the pulley is arranged on the mounting seat and used for guiding the traction rope;
the traction machine is fixed with one end of the traction rope and used for retracting the traction rope;
and the balancing weight is fixed at the other end of the traction rope and is used for driving the bolt to be inserted into the jack when the traction rope is released by the tractor.
Preferably, in the elevator positioning and protecting device of the present invention, the sensing and positioning components are located at the upper and lower sides of the optical sensing component; sensor mounting plates are vertically and fixedly mounted on the mounting seat and distributed on the left side and the right side of the limiting plate; the top and the lower extreme of sensor mounting panel still fixed mounting have limit travel switch, limit travel switch is used for controlling elevator car and stops when touching the top or the bottom of elevator well.
Preferably, in the elevator positioning and protecting device according to the present invention, the fixing plates are distributed on left and right sides of the limiting plate.
Preferably, in the elevator positioning and protecting device of the present invention, the optical sensing assembly is an upper grating sensor and a lower grating sensor, and the sensing positioning assembly is an upper infrared sensor and a lower infrared sensor.
Preferably, in the elevator positioning and protecting device according to the present invention, the infrared sensor includes an infrared generator disposed on the sensor mounting plate on one side and an emitting plate disposed on the sensor mounting plate on the other side.
The elevator positioning and protecting method comprises the following steps:
when the elevator is normal, the elevator is in a hosting state and is controlled by a control circuit of the elevator;
once abnormal conditions occur, the elevator is in a take-over state, at the moment, a control circuit of the elevator does not work, and the take-over control circuit is used for controlling the lifting of the elevator and the opening/closing of the door of the elevator;
in the hosting state, the elevator normally ascends, descends, stops and opens the door, whether the hosting state is stopped or not and the takeover state is determined by the optical sensing assembly, and when the optical sensing assembly senses any one of the upper limiting plate and the lower limiting plate, the takeover state is entered;
in the pipe connection state, the pipe connection circuit firstly controls the elevator door to close, senses whether the elevator door is closed or not after a door closing command is sent for a certain time, and controls the elevator door to open the door again and then close the door if the elevator door is not closed; if the door of the elevator is closed completely, the elevator is controlled to ascend and descend until the induction positioning assembly simultaneously induces the upper limiting plate and the lower limiting plate, the elevator is considered to reach a flat-layer state, the elevator is controlled to stop and open the door, if the induction door is opened completely, the elevator is considered to have normally operated, the pipe connection state of the pipe connection control circuit is released, and the elevator enters a pipe supporting state.
Preferably, the elevator positioning and protecting method of the present invention further comprises the steps of:
when the elevator is lifted, the sensing and positioning assembly needs to sense the upper limiting plate and the lower limiting plate at the same time, otherwise, the elevator can be lifted continuously until the sensing and positioning assembly senses the upper limiting plate and the lower limiting plate at the same time; if the elevator stops, the opening of the elevator door is controlled and the opening of the elevator door is not completed, the opening of the elevator door is continuously controlled until the opening of the elevator door is completed.
Preferably, according to the elevator positioning and protecting method, the elevator positioning and protecting device further has a one-key rescue function and is provided with an emergency switch, the emergency switch has a traffic light indicating function, the emergency switch is not on in a normal state, and the emergency switch is on when in a take-over state;
the emergency switch can directly enter a pipe connection state after being pressed;
when the red light of the emergency switch is turned on, the emergency switch is pressed down, and the following steps are executed:
when the trusteeship circuit simultaneously controls the lifting motor and the gantry crane motor, the trusteeship circuit enters a trusteeship state.
The invention has the beneficial effects that: the invention has the beneficial effects that: when the elevator breaks down at the flat bed position, have the multiple protection of mechanical switch protection and physical protection, can guarantee that the elevator car can not go up and down when the lift-cabin door does not close, avoid the elevator to cut the emergence of accident.
Drawings
The technical solution of the present application is further explained below with reference to the drawings and the embodiments.
Fig. 1 is a schematic structural view of an elevator positioning and protection device according to an embodiment of the present application in a state where a plug is not inserted;
fig. 2 is a schematic structural view illustrating a state in which a plug of an elevator positioning and protecting apparatus according to an embodiment of the present application is inserted;
fig. 3 is a schematic view of the position of an elevator positioning and protection device according to an embodiment of the present application installed in a building;
FIG. 4 is a schematic illustration of the position of the embodiment of the present application in the inserted state;
FIG. 5 is a schematic illustration of the position of the inserted state of the plug pin according to the embodiment of the present application;
FIG. 6 is a schematic diagram illustrating the installation positions of the optical sensing assembly and the sensing and positioning assembly according to the embodiment of the present application;
fig. 7 is a schematic diagram illustrating a structure and an installation manner of a limiting plate according to an embodiment of the application;
fig. 8 is a schematic structural diagram of an end of a limiting plate connected with a floor according to an embodiment of the application;
FIG. 9 is a schematic view of a reverse rotation counterweight block mounting structure according to an embodiment of the present application;
fig. 10 is a flow chart of an elevator positioning and protection method of an embodiment of the present application;
fig. 11 is a flow chart of the steps taken over by the elevator positioning and protecting method according to the embodiment of the present application.
The reference numbers in the figures are:
1 mounting base
2 bolt
3 limiting plate
5 mechanical switch
6 inductive locating component
7 sensor mounting plate
8 limit travel switch
9 optical sensing assembly
11 fixed plate
12 sliding rail
22 slide block
31 reinforcing strip
32 floor connecting plate
41 traction rope
42 pulley
44 balance weight
45 reverse rotation haulage rope
46 reverse counter weight block
61 Infrared inductor
62 infrared inductor
91 grating sensor
92 grating sensor
111 jack
611 infrared generator
612 emitting plate
621 infrared generator
622 emission plate
A Elevator car
And B floor.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Examples
This embodiment provides an elevator location and protection device, as shown in fig. 1-5, includes:
the mounting seat 1 is used for being fixed on one side of a bottom plate of an elevator car, and comprises a fixing plate 11, wherein the fixing plate 11 is provided with an inserting hole 111;
the bolt 2 is movably arranged on the mounting seat 1, and the bolt 2 is connected with a driving device;
the limiting plates 3 are used for being fixed on one side of an elevator shaft of a building floor, and the limiting plates 3 are arranged above and below each floor in pairs;
the mechanical switch 5 is fixedly connected to the bolt 2 and positioned above and below the bolt 2, and the mechanical switch 5 can control the elevator car to stop lifting when being extruded;
when the elevator car is opened, the bolt 2 can be driven by the driving device to be inserted into the jack 111 for fixing, and the limiting plate 3 is positioned on the lifting path of the bolt 2 and the mechanical switch 5; when the elevator car is closed, the bolt 2 can be taken out from the jack 111 under the drive of the driving device, and the limiting plate 3 is not located on the lifting path of the bolt 2 and the mechanical switch 5.
As shown in fig. 6, the elevator positioning and protecting device of this embodiment further includes an optical sensing assembly 9, where the optical sensing assembly 9 is fixedly connected to the mounting base 1, the optical sensing assembly has an upper sensing area and a lower sensing area, and the sensing areas are distributed on the upper side and the lower side of the mechanical switch 5; the optical induction subassembly only carries out the response when elevator car opens the door, the response is regional to be used for responding to limiting plate 3, the response is regional to when limiting plate 3, can control elevator car and stop. The theory of operation of the optical sensing assembly 9 of this embodiment with mechanical switch 5 is similar, but the position that optical sensing assembly 9 was installed will be more outside (use to be close to bolt 2 for the inboard, keep away from bolt 2 for the outside), like this at elevator car A execution action of opening the door, when the elevator broke down, elevator car A goes up and down under the state of opening the door, at first optical sensing assembly 9 can sense limiting plate 3 and control elevator car and stop, then reuse mechanical switch 5 control elevator car and stop when optical sensing assembly 9 response became invalid.
The elevator positioning and protecting device of the embodiment, as shown in fig. 6, further includes: the induction positioning assembly 6 is fixedly connected to the mounting seat 1 and used for sensing the upper side and the lower side of each floor, and when the induction positioning assembly senses the upper side and the lower side of each floor simultaneously, the elevator car can be controlled to stop when the limiting plate 3 is used. Specifically, the distance between the upper and lower limiting plates 3 of each floor is equal to the distance between the upper and lower ends of the induction positioning assembly 6, so that the upper and lower limiting plates 3 of each floor can be used for judging whether the bottom plate of the elevator car A is aligned with the floor B or not by utilizing the induction positioning assembly 6 to induce the floor, and the elevator car A can be conveniently and accurately stopped. Preferably, in the elevator positioning and protecting device of this embodiment, as shown in fig. 4, a sliding rail 12 is provided on the mounting base 1, and the latch 2 is mounted on the sliding rail 12 through a sliding block 22. Specifically, the optical sensing component 9 has a sensing range of about 2cm above and below, i.e. allowing the elevator car a to stop about 2cm above or below. In the actual use process, the following scenarios are taken as an example: the working steps are as shown in fig. 10, the elevator door is opened, the optical sensing component 9 senses the upper and lower limiting plates 3 to obtain that the floor is not leveled, the control system closes the door again, the elevator car A moves for a certain distance again, the sensing and positioning component 6 senses that the upper and lower limiting plates 3 reach the level, and then the door opening action is executed.
The elevator positioning and protecting device further comprises an emergency switch, wherein the emergency switch is used for controlling the elevator car to close the door and move for a certain distance until the sensing and positioning component 6 senses the upper limiting plate 3 and the lower limiting plate 3 simultaneously.
As shown in fig. 3, the elevator positioning and protecting device of this embodiment is installed on one side of the floor of the elevator car a, and a specific fixing method is to embed a shaft (in this embodiment, a square tube of 50x50x5mm is specifically adopted to be fixed at the axis of the bottom of the car, and the square tube is parallel to the steel wire rope at the bottom of the car) into the floor of the elevator car a, insert the shaft into a socket reserved on the mounting seat 1 to be fixed, fix the limiting plate 3 on one side of the elevator shaft of the building, and specifically embed and fix the limiting plate into each floor B (which can be fixed by concrete pouring and matching with the fixing plate).
The working principle of the elevator positioning and protecting device of the embodiment is as follows: the bolt 2 and the mechanical switch 5 correspondingly move along with the opening or closing of the door of the elevator car A, so that when the elevator car A opens the door (as long as the door is not completely closed, the door is considered to be opened), the bolt 2 and the mechanical switch 5 extend into the line where the limiting plate 3 is located. When the bottom plate of the elevator car A is flush with the floor B, the elevator car A can execute door opening action, if the elevator breaks down at the moment, the upper limiting plate 3 can collide with the upper mechanical switch 5 in case that the elevator car A rises in a door opening state, and then the mechanical switch 5 controls the elevator car A to stop lifting; in case that the elevator car A descends under the door-opening state, the lower limiting plate 3 collides with the lower mechanical switch 5, and then the mechanical switch 5 controls the elevator car A to stop ascending and descending. Under the condition that the mechanical switch 5 also fails, the plug pin 2 is in physical contact with the limiting plate 3, specifically, the mechanical strength of the plug pin 2 and the limiting plate 3 is enough, steel or hard alloy is preferable on the material, and the driving force for driving the elevator is ensured to be smaller than the supporting force which can be given to the plug pin 2 by the limiting plate 3, so that the elevator car A can be forcibly stopped and cannot ascend and descend. The elevator positioning and protecting device has multiple protections of mechanical switch protection and physical protection when the elevator breaks down at the flat bed position, and can ensure that the elevator car can not lift when the elevator door is not closed, thereby avoiding the occurrence of elevator shearing accidents.
Preferably, the elevator positioning and protecting device of the present embodiment, as shown in fig. 4 and 5, the driving device includes:
the traction rope 41 is fixedly connected with the bolt 2;
a pulley 42 provided on the mount 1 for guiding the traction rope 41;
the traction machine is fixed with one end of the traction rope 41 and used for retracting and releasing the traction rope 41;
and the counterweight block 44 is fixed at the other end of the traction rope 41, and the counterweight block 44 is used for driving the bolt 2 to be inserted into the insertion hole 111 when the traction machine releases the traction rope 41.
Specifically, in this embodiment, the retraction and release actions of the tractor and the opening and closing actions of the elevator are linked (specifically, linked by using a switch such as a PLC or a relay), when the elevator car a closes the door, as shown in fig. 4, the tractor retracts the traction rope 41, the plug 2 is drawn out from the fixing plate 11, the counterweight 44 is lifted, and when the elevator car a opens the door, as shown in fig. 5, the tractor loosens the traction rope 41, the counterweight 44 falls, and the plug 2 is driven to be inserted into the insertion hole 111 of the fixing plate 11. In this embodiment, the pulling rope 41 is preferably made of a high-strength material, such as a steel wire, if the pulling rope 41 is broken, as shown in fig. 9, the weight block 44 falls naturally, at this time, the weight block 44 triggers the reverse mechanism, the reverse weight block 46 pulls the bolt 2 to return to the initial position (i.e. the bolt 2 is no longer inserted into the insertion hole 111 of the fixing plate 11), at this time, the optical sensing component 9 still keeps working, and the protection of the photoelectric switch is kept. Specifically, as shown in fig. 9, the reverse weight block 46 is disposed on one side of the weight block 44, the reverse weight block 46 is connected to the plug pin 2 through a reverse pulling rope 45, the reverse weight block 46 pulls the plug pin 2 to move in a direction opposite to the weight block 44, and the weight of the reverse weight block 46 is greater than that of the weight block 44. The lowermost end of the guide rail where the weight 44 is located has a trigger mechanism for sensing the weight 44, and the mechanism can be triggered only when the weight 44 falls out of the normal range (i.e. it is determined that the traction rope 41 of the weight 44 is broken). The reverse counter weight 46 has a supporting mechanism in a normal state, that is, the reverse counter weight 46 does not participate in the traction of the bolt 2 in a normal state, and only when the pulling rope 41 is broken, the triggering mechanism judges that the pulling rope 41 is broken and controls the supporting mechanism to cancel the support of the reverse counter weight 46, so that the reverse counter weight 46 participates in the reverse traction of the bolt 2.
Preferably, in the elevator positioning and protecting device of the present embodiment, as shown in fig. 1 and 2, the sensing and positioning components are located at the upper and lower sides of the optical sensing component; the mounting seat 1 is vertically and fixedly provided with a sensor mounting plate 7, and the sensor mounting plates 7 are distributed on the left side and the right side of the limiting plate 3; the top and the lower extreme of sensor mounting panel 7 still fixed mounting have limit travel switch 8, limit travel switch 8 is used for controlling elevator car and stops when touching the top or the bottom of elevator well.
Preferably, in the elevator positioning and protecting device of the present embodiment, as shown in fig. 1 and 2, the fixing plates 11 are distributed on the left and right sides of the limiting plate 3. The fixing plates 11 on both sides have high strength and can give sufficient supporting force to the socket 2.
Preferably, in the elevator positioning and protecting device of this embodiment, as shown in fig. 6, the optical sensing component 9 is an upper grating sensor 91 and a lower grating sensor 92, and the sensing and positioning component 6 is an upper infrared sensor 61 and a lower infrared sensor 62.
Preferably, in the elevator positioning and protecting device of the present embodiment, as shown in fig. 6, the infrared sensors 61, 62 include infrared generators 611, 621 provided on the sensor mounting plate 7 on one side and emitting plates 612, 622 provided on the sensor mounting plate 7 on the other side.
Preferably, the embodiment provides a structure and an installation method of the limiting plate 3, as shown in fig. 7, the limiting plate 3 above and below each floor B is fixedly connected by a reinforcing bar 31, so that the limiting plate 3 above each floor, the reinforcing bar 31, the limiting plate 3 below each floor and a sidewall of the elevator shaft form a closed frame or ring. Meanwhile, as the bolt 2, the fixing plates 11 at the left side and the right side and the mounting seat 1 of the elevator positioning and protecting device of the embodiment are equivalent to form a closed ring shape or a closed frame shape as shown in fig. 7, when the bolt 2 is inserted into the fixing plate 11, as shown in fig. 7, a mutually buckled state of two closed frames is formed, so that the elevator positioning and protecting device has strong bearing capacity and can ensure safety performance. As shown in fig. 8, the specific width of the limiting plate 3 and the reinforcing bar 31 may be about 1cm, and a floor connecting plate 32 embedded in the floor concrete is fixed to the other end of the limiting plate 3.
Preferably, in the elevator positioning and protecting device of the present embodiment, the mechanical switch 5 is located at 10-12cm on the upper and lower sides of the plug 2, the optical sensing component 5 is located at 17-19cm on the upper and lower sides of the plug 2, and the sensing and positioning component 6 is located at 19-21cm on the upper and lower sides of the plug 2.
When the elevator is normal, the elevator is in a hosting state and is controlled by a control circuit of the elevator;
once abnormal conditions occur, the elevator is in a take-over state, the take-over control circuit controls the lifting of the elevator and the opening/closing of the elevator door, and at the moment, the control circuit of the elevator does not work.
The control logic for the escrow state and the takeover state is shown in fig. 10.
When the optical sensing assembly 9 senses any one of the upper limiting plate and the lower limiting plate 3, the elevator does not reach a flat floor or is lifted under the condition that the door is not completely closed, and the elevator can enter a take-over state;
in the pipe connection state, the pipe connection circuit firstly controls the elevator door to close, senses whether the elevator door is closed after a door closing command is sent for 5s, and controls the elevator door to open the door again and then close the door if the elevator door is not closed; if the door of the elevator is closed completely, controlling the elevator to ascend and descend until the induction positioning assembly 6 simultaneously induces the upper limiting plate and the lower limiting plate 3, determining that the elevator reaches a flat-layer state, controlling the elevator to stop and open the door, if the induction door is opened completely, determining that the elevator has normally operated, removing a pipe connection state of a pipe connection control circuit, and entering a pipe supporting state; when the elevator is lifted, the sensing and positioning component 6 needs to sense the upper limiting plate 3 and the lower limiting plate 3 at the same time, otherwise, the elevator can be lifted continuously until the sensing and positioning component 6 senses the upper limiting plate 3 and the lower limiting plate 3 at the same time; if the elevator stops, the opening of the elevator door is controlled and the opening of the elevator door is not completed, the opening of the elevator door is continuously controlled until the opening of the elevator door is completed.
The elevator positioning and protecting device further has a one-key rescue function and is provided with an emergency switch, and the emergency switch can be arranged in an elevator machine room, a car, a first-floor calling area or a manager machine room and the like. The emergency switch has a traffic light indicating function, and is not turned on in a normal state, and is turned on (when to turn on a red light or a green light, which will be described later) in a take-over state.
The logic control after the emergency switch is pressed is as shown in fig. 11, and the emergency switch directly enters the take-over state after being pressed (if the emergency switch is in the tube-taking state originally, the tube-taking state is released to enter the take-over state, and if the emergency switch is in the take-over state originally, the take-over state is maintained).
When the red light of the emergency switch is turned on, the emergency switch is pressed down, and the following steps are executed:
When the trusteeship circuit simultaneously controls the lifting motor and the gantry crane motor, the trusteeship circuit enters a trusteeship state.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An elevator positioning and protection device, comprising:
the mounting seat (1) is used for being fixed on one side of a bottom plate of an elevator car, and comprises a fixing plate (11), wherein the fixing plate (11) is provided with a jack (111);
the bolt (2) is movably arranged on the mounting seat (1), and the bolt (2) is connected with a driving device;
the limiting plates (3) are fixed on one side of an elevator shaft of a building floor, and the limiting plates (3) are arranged above and below each floor in pairs;
the mechanical switch (5) is fixedly connected to the bolt (2) and positioned above and below the bolt (2), and the mechanical switch (5) can control the elevator car to stop lifting when being extruded;
the optical sensing assembly (9) is fixedly connected to the mounting seat (1), the optical sensing assembly is provided with an upper sensing area and a lower sensing area, and the sensing areas are distributed on the upper side and the lower side of the mechanical switch (5); the optical sensing assembly only performs sensing when the elevator car is opened, the sensing area is used for sensing the limiting plate (3), and the elevator car can be controlled to stop when the sensing area senses the limiting plate (3);
the induction positioning assembly (6) is fixedly connected to the mounting seat (1) and used for inducing the limiting plates (3) above and below each floor, and when the induction positioning assembly (6) induces the limiting plates (3) above and below each floor at the same time, the elevator car can be controlled to stop;
the emergency switch is used for controlling the elevator car to close the door and move for a certain distance until the sensing and positioning component (6) senses the upper limit plate and the lower limit plate (3) at the same time;
when the elevator car is opened, the bolt (2) can be driven by the driving device to be inserted into the jack (111) for fixing, and the limiting plate (3) is positioned on a lifting path of the bolt (2) and the mechanical switch (5); when the door of the elevator car is closed, the bolt (2) can be driven by the driving device to be drawn out of the jack (111), and the limiting plate (3) is not positioned on the lifting path of the bolt (2) and the mechanical switch (5).
2. The elevator positioning and protection device according to claim 1, characterized in that the mounting base (1) is provided with a sliding rail (12), and the bolt (2) is mounted on the sliding rail (12) through a sliding block (22).
3. The elevator positioning and protection device of claim 2, wherein the drive device comprises:
the traction rope (41) is fixedly connected with the bolt (2);
a pulley (42) arranged on the mounting base (1) and used for guiding the traction rope (41);
the traction machine is fixed with one end of the traction rope (41) and used for retracting the traction rope (41);
and the balancing weight (44) is fixed to the other end of the traction rope (41), and the balancing weight (44) is used for driving the plug pin (2) to be inserted into the insertion hole (111) when the traction rope (41) is released by the tractor.
4. The elevator positioning and protection device according to any one of claims 1-3, wherein the sensing and positioning assembly is located on the upper and lower sides of the optical sensing assembly; the mounting seat (1) is vertically and fixedly provided with a sensor mounting plate (7), and the sensor mounting plates (7) are distributed on the left side and the right side of the limiting plate (3); the sensor mounting panel (7) the top and the lower extreme still fixed mounting have limit travel switch (8), limit travel switch (8) are used for controlling elevator car and stop when touching the top or the bottom of elevator well.
5. Elevator positioning and protection device according to any of claims 1-3, characterized by the fact that the fixed plates (11) are distributed on the left and right sides of the limit plate (3).
6. The elevator positioning and protecting device according to any one of claims 1-3, characterized in that the optical sensing assembly (9) is an upper and a lower set of grating sensors (91, 92), and the sensing and positioning assembly is an upper and a lower set of infrared sensors (61, 62).
7. Elevator positioning and protection device according to claim 6, characterized in that the infrared sensor (61, 62) comprises an infrared generator (611, 621) arranged on the sensor mounting plate (7) on one side and an emitter plate (612, 622) arranged on the sensor mounting plate (7) on the other side.
8. Method for positioning and protecting an elevator, characterized in that the use of an elevator positioning and protecting device according to any of claims 1-7 comprises the following steps:
when the elevator is normal, the elevator is in a hosting state and is controlled by a control circuit of the elevator;
once abnormal conditions occur, the elevator is in a take-over state, at the moment, a control circuit of the elevator does not work, and the take-over control circuit is used for controlling the lifting of the elevator and the opening/closing of the door of the elevator;
in the hosting state, the elevator normally ascends, descends, stops and opens the door, whether the hosting state is stopped or not and the takeover state is determined by the optical sensing assembly (9), and when the optical sensing assembly (9) senses any one of the upper limiting plate and the lower limiting plate (3), the takeover state is entered;
in the pipe connection state, the pipe connection circuit firstly controls the elevator door to close, senses whether the elevator door is closed or not after a door closing command is sent for a certain time, and controls the elevator door to open the door again and then close the door if the elevator door is not closed; if the door of the elevator is closed completely, the elevator is controlled to ascend and descend until the induction positioning assembly (6) simultaneously induces the upper limiting plate and the lower limiting plate (3), the elevator is considered to reach a flat-layer state, the elevator is controlled to stop and open the door, if the induction door opening is completed, the elevator is considered to have normally operated, the take-over state of the take-over control circuit is released, and the elevator enters a hosting state.
9. The elevator positioning and protection method according to claim 8, further comprising the steps of:
when the elevator is lifted, the sensing and positioning component (6) needs to sense the upper limiting plate and the lower limiting plate (3) at the same time, otherwise, the elevator can be lifted continuously until the sensing and positioning component (6) senses the upper limiting plate and the lower limiting plate (3) at the same time; if the elevator stops, the opening of the elevator door is controlled and the opening of the elevator door is not completed, the opening of the elevator door is continuously controlled until the opening of the elevator door is completed.
10. The elevator positioning and protecting method according to claim 9, characterized in that the elevator positioning and protecting device further has a one-key rescue function and is provided with an emergency switch, the emergency switch has a traffic light indicating function, the emergency switch is not on in a normal state, and the emergency switch is on when in a take-over state;
the emergency switch can directly enter a pipe connection state after being pressed;
when the red light of the emergency switch is turned on, the emergency switch is pressed down, and the following steps are executed:
step 1, sensing a limiting plate by a sensing positioning assembly, executing step 2 when the sensing positioning assembly can sense the limiting plate above and below a floor at the same time, and executing step 3 otherwise;
step 2, the elevator door opening motor works to open the door of the elevator door, at the moment, the door opening state needs to be sensed, if the door opening is completed successfully, the take-over state of the take-over control circuit is released, the pipe supporting state is entered, the emergency switch is indicated to be a green light, and if the pipe supporting state closes the door again, the door opening of the take-over state of the elevator door is performed again; after the door is opened successfully, the elevator temporarily enters a hosting state until a traction machine controlling the elevator to ascend and descend also enters the hosting state, the elevator integrally enters the hosting state at the moment, the elevator completely exits the takeover state, and a green light indicated by an emergency switch is turned off;
step 3, an elevator door opening motor works to close the elevator door, and the induction of whether the elevator door is closed is finished or not after a certain time, if the elevator door is closed, the elevator is controlled to ascend and descend, and the induction positioning component (6) is used for inducing the limiting plate (3) in the step 1; if the door of the elevator door is not closed completely, the door of the elevator door is continuously controlled to be opened and then closed until the door is closed successfully;
when the trusteeship circuit simultaneously controls the lifting motor and the gantry crane motor, the trusteeship circuit enters a trusteeship state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543250.5A CN111634790A (en) | 2020-06-15 | 2020-06-15 | Elevator positioning and protecting device and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010543250.5A CN111634790A (en) | 2020-06-15 | 2020-06-15 | Elevator positioning and protecting device and method thereof |
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| CN111634790A true CN111634790A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010543250.5A Pending CN111634790A (en) | 2020-06-15 | 2020-06-15 | Elevator positioning and protecting device and method thereof |
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| JP2005298133A (en) * | 2004-04-12 | 2005-10-27 | Mitsubishi Electric Building Techno Service Co Ltd | Elevator device for base isolation building |
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Application publication date: 20200908 |
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