CN113353750B - Control method and system of epidemic prevention elevator and epidemic prevention elevator - Google Patents
Control method and system of epidemic prevention elevator and epidemic prevention elevator Download PDFInfo
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- CN113353750B CN113353750B CN202110765572.9A CN202110765572A CN113353750B CN 113353750 B CN113353750 B CN 113353750B CN 202110765572 A CN202110765572 A CN 202110765572A CN 113353750 B CN113353750 B CN 113353750B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
- B66B1/14—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
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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)
- Computer Networks & Wireless Communication (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a control system of an epidemic prevention elevator, which comprises an identifiable code carrier, an identifiable code recognition device, a memory and an elevator controller. The invention also provides a control method of the epidemic prevention elevator, which comprises the steps of judging whether the identifiable code on the film is a new code or not, and unlocking the elevator when the judgment result is yes; and judging whether the condition of locking the elevator is met, and locking the elevator when the condition of locking the elevator is met. The invention also provides an epidemic prevention elevator, which comprises the control system of the epidemic prevention elevator. Through the technical scheme of the invention, the situation that the film is not replaced when needing to be replaced due to human factors can be effectively avoided, so that the epidemic prevention of the elevator is facilitated.
Description
Technical Field
The invention relates to a control method and a control system of an epidemic prevention elevator and the epidemic prevention elevator, and belongs to the technical field of elevator epidemic prevention.
Background
When people take the elevator, the people need to touch the keys of the elevator, the keys can become carriers for spreading viruses, individual users can prepare paper towels or disinfectant wet tissues, and some elevators are provided with paper drawers, so that the direct contact between fingers and the keys is avoided, but the used paper towels or wet tissues are not provided with reasonable recovery devices, the environment of the elevator can be influenced, and the keys can be pressed by the user with personal articles such as keys instead of the fingers. Most users still directly touch the keys with fingers, and the problem of virus propagation through indirect contact is not solved fundamentally. There is also a method of coating a film on an elevator key, for example, a telescopic elevator key antibacterial coating device disclosed in chinese patent document CN112722968A, which coats a film on an elevator key and periodically replaces the film to reduce the probability of virus propagation, thereby achieving the purpose of virus prevention and control. However, the film may not be replaced when it is necessary to replace it due to human factors, and particularly, a strong infectious Virus such as a Corona Virus Disease 2019 (COVID-19) may cause a high risk of spreading an infectious Disease during a period of time when it is too abused. In addition, at present, people most commonly use common preservative films to carry out film covering operation, and the films can fall off during the service life, so that the edges of the films have to be adhered by adhesive tapes, and the film covering and film uncovering are inconvenient.
Disclosure of Invention
Therefore, the invention aims to provide a control method and a control system of an epidemic prevention elevator and the epidemic prevention elevator, which can solve the problem that a film is not replaced in time and is continuously used.
In order to achieve the above object, a control system of an epidemic prevention elevator of the present invention comprises:
the identifiable code carrier is fixedly arranged on the film and used for bearing the identifiable code;
the identifiable code recognition device is connected with the elevator controller and used for recognizing the identifiable code and sending identifiable code information to the controller after recognizing the identifiable code;
the memory is connected with the elevator controller and used for storing the identifiable code received by the elevator controller;
the elevator controller is used for receiving the identifiable code information sent by the identifiable code recognition device, calling the identifiable code stored in the memory and comparing the identifiable code information with the identifiable code stored in the memory, judging whether the received identifiable code is a new code, unlocking the elevator when the received identifiable code is the new code, receiving a control command of a passenger, controlling the elevator to act according to the control command, judging whether the condition that the elevator is locked is met, and locking the elevator when the condition that the elevator is locked is met.
The control system of the epidemic prevention elevator further comprises a timer, the timer is connected with the elevator controller, the elevator controller is used for starting the timer to time when the received identifiable code is judged to be a new code, and when the preset time is over, the condition that the elevator is locked is judged to be met.
The elevator controller is used for starting to record the number of times of pressing a key when a passenger inputs a control command when judging that the received identifiable code is a new code, and judging that the condition of locking the elevator is met when the number of times of pressing the key reaches a preset maximum number.
The control system of the epidemic prevention elevator further comprises an ultraviolet light source and an ultraviolet camera, wherein the ultraviolet light source is used for projecting ultraviolet light to the film; the ultraviolet camera is connected with the elevator controller and used for acquiring an ultraviolet image of the film and sending the ultraviolet image to the elevator controller; the elevator controller is used for analyzing the ultraviolet image of the film, identifying a stain area, and judging that the elevator locking condition is met when the area of the stain area reaches a preset maximum value.
The control system of the epidemic prevention elevator also comprises a touch screen, wherein the touch screen is connected with the elevator controller and is used for displaying virtual keys of the elevator; the elevator controller is used for judging whether the condition for replacing the virtual key position is met or not, and controlling the display to replace the virtual key to other positions which are not touched or not polluted to display when the condition for replacing the virtual key position is met; the condition for replacing the position of the virtual key comprises that a preset duration is finished or the number of times that the virtual key is touched reaches a preset upper limit.
The invention also provides a control method of the epidemic prevention elevator, which comprises the following steps:
judging whether the identifiable code on the film is a new code or not, and unlocking the elevator when the judgment result is yes;
and judging whether the condition of locking the elevator is met, and locking the elevator when the condition of locking the elevator is met.
The step of determining whether the condition for elevator deadlock is met comprises at least one of the following methods:
(1) timing is started when the recognizable code is judged to be a new code, and when the preset timing time is over, the condition that the elevator is locked is judged to be met;
(2) when the received identifiable code is judged to be a new code, the number of times of pressing a key when a passenger inputs a control command is recorded, and when the number of times of pressing the key reaches a preset maximum number, the condition that the elevator is locked is judged to be met;
(3) and acquiring and analyzing the ultraviolet image of the film, identifying a stain area, and judging that the condition of locking the elevator is met when the area of the stain area reaches a preset maximum value.
The keys of the elevator are virtual keys displayed on the touch screen; judging whether the condition for replacing the virtual key position is met, and controlling the display to replace the virtual key to other positions which are not touched or polluted to display when the judgment result is yes; the condition for replacing the position of the virtual key comprises that a preset duration is finished or the number of times that the virtual key is touched reaches a preset upper limit.
The invention also provides an epidemic prevention elevator, which comprises the control system of the epidemic prevention elevator.
The epidemic prevention elevator comprises a guide rail, a sliding block positioned on the guide rail, a rack arranged in parallel with the guide rail and a film roll which is detachably arranged on the sliding block, wherein the axis of the film roll is vertical to the extending direction of the guide rail; the film roll comprises a rotating rod and a film wound on the outer side of the rotating rod, one end of the film is a fixed end fixed on the rotating rod, the other end of the film is a free end, a hard strip is arranged on the edge of the free end, and the hard strip can be detachably fixed on one side of a key area; and a gear ring part which can be meshed with the rack is arranged on the rotating rod.
The identifiable code carrier is an RFID chip, and the identifiable code identification device is an RFID reader.
The RFID chip is arranged on the hard strip.
Defining the advancing direction of the rotating rod as a downstream direction when the film roll is unwound, and defining the direction opposite to the advancing direction as an upstream direction; the two parallel guide rails are respectively arranged at two sides of the key area, each guide rail is provided with a sliding block, and the two sliding blocks are connected through a connecting rod; the connecting rod is positioned in the upstream direction of the film roll; the connecting rod is provided with a sweeping and pressing component, and the sweeping and pressing component can sweep and press the film when the film is laid on the key area.
The sweeping and pressing component is a row of hairbrushes distributed along the axial direction of the connecting rod.
One end of the guide rail is a material loading and unloading station which is used for installing and disassembling the film roll; the rack forms a vacancy at a position corresponding to the material loading and unloading station; the rotating rod comprises a core rod and a sleeve sleeved outside the core rod, the toothed ring is positioned on the core rod, and a first ratchet mechanism is arranged between the core rod and the sleeve; a spring box is arranged on the sliding block, a spring rotating shaft is arranged in the spring box and is connected to a synchronizing shaft through a second ratchet wheel and ratchet mechanism, a synchronizing jack is arranged on the synchronizing shaft, and a synchronizing inserting rod matched with the synchronizing jack is arranged at one end of the core rod, so that the core rod can rotate synchronously with the synchronizing shaft; defining the rotation direction of the sleeve as a forward direction when the film roll is unwound and the rotation direction opposite to the forward direction as a reverse direction; when the core bar rotates reversely, the spring rotating shaft can be driven to rotate reversely through the second ratchet wheel and ratchet mechanism so as to store energy for the spring; when the core rod rotates forwards, the sleeve can be driven to rotate forwards through the first ratchet wheel and ratchet mechanism.
The first ratchet wheel and ratchet mechanism comprises a first ratchet wheel part, a positioning ring and a first ratchet tooth part, wherein the first ratchet wheel part is positioned on the core rod, the first ratchet tooth part is positioned on the inner side of the positioning ring, and the end part of the sleeve is provided with an abdicating groove for accommodating and fixing the positioning ring.
And a key and key groove mechanism is arranged between the inner side wall of the abdicating groove and the outer side wall of the positioning ring.
The positioning ring and the first ratchet part are of an integrally formed plastic structure, the first ratchet part is multiple, and the first ratchet parts are uniformly distributed in the circumferential direction of the positioning ring.
The second ratchet mechanism comprises a second ratchet part, a mounting seat and a spring plate, one of the second ratchet part and the mounting seat is fixed on the spring rotating shaft, and the other of the second ratchet part and the mounting seat is fixed on the synchronizing shaft; the second ratchet part is installed on the installation seat through an installation shaft, and the elastic sheet is installed on the installation seat and compresses the second ratchet part.
A base is arranged in the spring box and fixed on the sliding block; a first base plate and a second base plate are respectively fixed on two sides of the base, the synchronizing shaft is installed on the first base plate through a first bearing, and the spring rotating shaft is installed on the second base plate through a second bearing; the base is further provided with a supporting lug, and the synchronizing shaft penetrates through a shaft hole in the supporting lug.
By adopting the technical scheme, the control method and the system of the epidemic prevention elevator and the epidemic prevention elevator can lock the elevator through the elevator controller, unlock the elevator only when the film covered on the key is replaced by a new one, judge whether the film is replaced by arranging the identifiable code on the film, and indicate that the film is replaced when the identifiable code is identified as a new code; in addition, when the elevator is in an unlocking state, the elevator is locked after the condition that the elevator is locked is triggered, and the film is waited for to be replaced next time. By the method, the situation that the film is not replaced when needing to be replaced due to human factors can be effectively avoided, and epidemic prevention of the elevator is facilitated.
Drawings
Fig. 1 is a system block diagram of a control system of an epidemic prevention elevator in the first embodiment of the invention.
Fig. 2 is a system block diagram of a second embodiment of the control system of the epidemic prevention elevator in the invention.
Fig. 3 is a system block diagram of a third embodiment of the control system of the epidemic prevention elevator in the invention.
Fig. 4 is a system block diagram of a fourth embodiment of the control system of the epidemic prevention elevator in the invention.
Fig. 5 is a flowchart of a control method of an epidemic prevention elevator in the invention.
Fig. 6 is a flowchart of a second embodiment of the control method of the epidemic prevention elevator of the invention.
Fig. 7 is a flowchart of a third embodiment of the control method of the epidemic prevention elevator in the invention.
Fig. 8 is a flowchart of a fourth embodiment of the control method of the epidemic prevention elevator in the invention.
Fig. 9 is a schematic structural view of a first embodiment of a film covering frame in the epidemic prevention elevator of the invention.
FIG. 10 is a schematic view of an assembly structure of a lower slide block in the first embodiment of the frame for a cover.
FIG. 11 is a schematic view of an assembly structure of an upper slide block in the first embodiment of the frame for a cover.
FIG. 12 is a schematic view of a first embodiment of a frame for a cover in an unrolled state.
FIG. 13 is a schematic view of a film roll in a first embodiment of a frame for covering a film.
Fig. 14 is a schematic structural view of a second embodiment of a film frame in an epidemic prevention elevator of the invention.
Fig. 15 is a schematic structural view of the barrel.
Fig. 16 is a partial sectional view of the barrel.
Fig. 17 is another angle structure diagram of fig. 16.
Fig. 18 is a schematic structural view of the second ratchet mechanism.
FIG. 19 is a schematic view of a second embodiment of a frame for a cover lay with the film roll in an unwound state.
FIG. 20 is a schematic view of the construction of a roll of film in a second embodiment of a frame for a cover.
FIG. 21 is an exploded view of the film roll configuration of a second embodiment of the frame for covering a film.
Fig. 22 is a partially enlarged view of a portion a in fig. 21.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
The invention relates to a control system of an epidemic prevention elevator, which comprises:
the identifiable code carrier is fixedly arranged on the film and used for bearing the identifiable code;
the identifiable code recognition device is connected with the elevator controller and is used for recognizing the identifiable code and sending identifiable code information to the controller after recognizing the identifiable code;
the memory is connected with the elevator controller and used for storing the identifiable code received by the elevator controller;
the elevator controller is used for receiving the identifiable code information sent by the identifiable code recognition device, calling the identifiable code stored in the memory and comparing the identifiable code information with the identifiable code stored in the memory, judging whether the received identifiable code is a new code, unlocking the elevator when the received identifiable code is the new code, receiving a control command of a passenger, controlling the elevator to act according to the control command, judging whether the condition that the elevator is locked is met, and locking the elevator when the condition that the elevator is locked is met.
As shown in fig. 1, in the first embodiment of the control system of the epidemic prevention elevator of the present invention, the control system of the epidemic prevention elevator further comprises a timer, the timer is connected to the elevator controller, the elevator controller is configured to start the timer to time when the received identifiable code is determined to be a new code, and when the preset time is over, it is determined that the condition of locking the elevator is satisfied.
As shown in fig. 5, the control method of the epidemic prevention elevator in this embodiment includes:
judging whether the identifiable code on the film is a new code or not, and unlocking the elevator when the judgment result is yes;
and judging whether the condition of locking the elevator is met, and locking the elevator when the condition of locking the elevator is met.
The step of judging whether the condition of the elevator locking is met comprises the following steps:
and starting timing when the recognizable code is judged to be a new code, and judging that the condition of locking the elevator is met when the preset timing time is over. For example, a preset timing time of 24 hours, the elevator is unlocked and can be used for 24 hours after a new film is installed, and when the timing time is over, the elevator automatically locks until the new film is replaced again.
As shown in fig. 2, in the second embodiment of the control system of the epidemic prevention elevator of the present invention, the elevator controller is configured to start to record the number of times of pressing a button when a passenger inputs a control command when the received identifiable code is determined to be a new code, and determine that the condition of locking the elevator is satisfied when the number of times of pressing the button reaches the preset maximum number.
As shown in fig. 6, the control method of the epidemic prevention elevator in this embodiment includes:
judging whether the identifiable code on the film is a new code or not, and unlocking the elevator when the judgment result is yes;
and judging whether the condition of locking the elevator is met, and locking the elevator when the condition of locking the elevator is met.
Wherein the step of judging whether the elevator deadlock condition is met comprises the following steps:
and starting to record the number of times of pressing a key when a passenger inputs a control command when the received identifiable code is judged to be a new code, and judging that the condition of locking the elevator is met when the number of times of pressing the key reaches a preset maximum number. The more the number of the keys is, the higher the frequency of the used elevator is, so that the maximum number of the keys is reasonably preset, and the serious pollution of the film caused by the high-frequency use of the elevator in certain time periods can be avoided compared with a timing mode.
As shown in fig. 3, in the third embodiment of the control system of the epidemic prevention elevator of the present invention, the control system of the epidemic prevention elevator further comprises an ultraviolet light source and an ultraviolet camera, wherein the ultraviolet light source is used for projecting ultraviolet light to the film; the ultraviolet camera is connected with the elevator controller and used for acquiring an ultraviolet image of the film and sending the ultraviolet image to the elevator controller; the elevator controller is used for analyzing the ultraviolet image of the film, identifying a stain area, and judging that the elevator locking condition is met when the area of the stain area reaches a preset maximum value.
As shown in fig. 7, the control method of the epidemic prevention elevator in this embodiment includes:
judging whether the identifiable code on the film is a new code or not, and unlocking the elevator when the judgment result is yes;
and judging whether the condition of locking the elevator is met, and locking the elevator when the condition of locking the elevator is met.
Wherein the step of judging whether the elevator deadlock condition is met comprises the following steps:
and acquiring and analyzing the ultraviolet image of the film, identifying a stain area, and judging that the condition of locking the elevator is met when the area of the stain area reaches a preset maximum value.
As shown in fig. 4, in the fourth embodiment of the control system of the epidemic prevention elevator of the present invention, the control system of the epidemic prevention elevator further comprises a touch screen, wherein the touch screen is connected to the elevator controller and is used for displaying the virtual keys of the elevator; the elevator controller is used for judging whether the condition for replacing the virtual key position is met or not, and controlling the display to replace the virtual key to other positions which are not touched or not polluted to display when the condition for replacing the virtual key position is met; the condition for replacing the position of the virtual key comprises that a preset duration is finished or the number of times that the virtual key is touched reaches a preset upper limit.
As shown in fig. 8, in this embodiment, the control method of an epidemic prevention elevator in this embodiment includes:
displaying virtual keys of the elevator through a touch screen;
and judging whether the condition for replacing the virtual key position is met, and controlling the display to replace the virtual key to other positions which are not touched or polluted to display when the condition for replacing the virtual key position is met.
The condition for replacing the position of the virtual key comprises that a preset duration is finished or the number of times that the virtual key is touched reaches a preset upper limit.
The touch screen can capture the area touched by the passenger during the use period, other areas are areas not touched, the area touched by the passenger is in direct contact with the hands of the passenger, so the probability of the touched area being infected with viruses is higher, the probability of the untouched area being infected with viruses is relatively lower, after the touch screen is used for a period of time, and when the condition of replacing the positions of the virtual keys is met, the positions of the virtual keys are changed to the areas not touched, so that the infection probability of the viruses is favorably reduced. For example, the display area of the touch panel is divided into a plurality of sections, the virtual keys are displayed on a certain section, and when the condition for changing the positions of the virtual keys is satisfied, the virtual keys are changed to other areas.
The ultraviolet image of the film is analyzed to identify the dirty area, and the areas other than the dirty area are the uncontaminated areas.
The invention also provides an epidemic prevention elevator, which comprises the control system of the epidemic prevention elevator.
As shown in fig. 9, in a first embodiment of the film frame 100, the film frame 100 includes an upper guide rail 1, a lower guide rail 2, an upper slider 3 located on the upper guide rail 1, a lower slider 4 located on the lower guide rail 2, a rack 5 parallel to the lower guide rail 2, and a film roll 6 having two ends detachably mounted on the upper slider 3 and the lower slider 4, respectively. The axis of the film roll 6 is perpendicular to the extending direction of the lower guide rail 2. In this embodiment, as shown in fig. 13, the film roll 6 includes a rotating rod 61 and a film 62 wound outside the rotating rod 61, one end of the film 62 is a fixed end fixed on the rotating rod 61, the other end is a free end, the edge of the free end is provided with a hard strip 63, the hard strip 63 is provided with a latch 64 so as to be detachably fixed on one side of a key area, and the key area is provided with the touch screen 7. The rotary lever 61 is provided with a ring gear portion 610 that can mesh with the rack 5.
As shown in fig. 10, the lower slider 4 is provided with a lower placement groove 41, and the lower end of the rotating rod 61 can be placed in the lower placement groove 41 and can rotate freely in the lower placement groove 41. As shown in fig. 11, the upper slider 3 is provided with an upper placement groove 31, and the upper end of the rotating rod 61 can be placed in the upper placement groove 31 and can rotate freely in the upper placement groove 31.
In this embodiment, the identifiable code carrier is an RFID chip 65 and the identifiable code identification device is an RFID reader. The RFID chip 65 is provided on the hard bar 63. Of course, in other embodiments, the recognizable code may be in other forms such as a bar code, a two-dimensional code, and the like, and correspondingly, the recognizable code recognition device is a code scanning device.
The advancing direction of the rotating lever 61 when the film roll 6 is unwound is defined as a downstream direction (leftward direction in fig. 9), and a direction opposite to the advancing direction is defined as an upstream direction (rightward direction in fig. 9). The upper sliding block 3 is connected with the lower sliding block 4 through a connecting rod 8; the connecting bar 8 is located in the upstream direction of the film roll 6; the connecting rod 8 is provided with a wiping element which can wipe the film 62 flat when the film 62 is laid on the key area. The sweeping and pressing part is a row of brushes 81 distributed along the axial direction of the connecting rod 8.
When using, install film roll 6 on slider 3 and lower slider 4, fix the fixture block 64 joint on stereoplasm strip 63 in the draw-in groove of pressing key region one side, RFID reads the ware and then sets up in the position relative with RFID chip 65 to can discern RFID chip 65. After the installation is completed, the connecting rod 8 is pushed in the downstream direction, the toothed ring portion 610 on the rotating rod 61 rotates in the downstream direction along the rack 5, and the film roll 6 is unwound and laid on the touch screen 7 until the touch screen 7 is covered, as shown in fig. 12. When the film roll 6 needs to be replaced, the connecting rod 8 is pushed in the upstream direction, the toothed ring portion 610 on the rotary rod 61 rotates in the upstream direction along the rack 5, and the film 62 is wound on the rotary rod 61 again.
When the used film 62 is rolled on the rotating rod 61, the layers cannot be rolled tightly, meanwhile, stains may adhere to the film 62, and there is also a possibility of partial damage and overlap, the size of the increase of the outer diameter of the film roll rolled on the rotating rod 61 is large due to many factors, and when the outer diameter of the film roll is larger than the outer diameter of the toothed ring part 610 and has a large difference, the rotating rod 61 is easily blocked and cannot rotate, and even the film 62 is pulled apart.
Therefore, as a second embodiment of the film frame 100, the above-mentioned defects are improved, and as shown in fig. 14, one end of the lower rail 2 is a loading and unloading station for installing the film roll 6 and detaching the film roll 6; since the rack 5 has a space 5a at a position corresponding to the material loading/unloading station, the ring gear portion 610 does not engage with the rack 5 at the position of the space 5a, and is not restricted by the rack 5.
As shown in fig. 20 and 21, the rotating rod 61 includes a core rod 611 and a sleeve 612 sleeved outside the core rod 611, the tooth ring 610 is located on the core rod 611, and a first ratchet mechanism is disposed between the core rod 611 and the sleeve 612. As shown in fig. 22, the first ratchet mechanism includes a first ratchet portion 611a on the core bar 611, a positioning ring 612a, and a first ratchet portion 612b inside the positioning ring 612a, and the end of the sleeve 612 is provided with an abdicating groove 612c for receiving and fixing the positioning ring 612 a.
A key groove 612d and a key 612e are respectively formed on the inner sidewall of the receding groove 612c and the outer sidewall of the positioning ring 612a, so that the positioning ring 612a and the sleeve 612 can rotate synchronously.
The positioning ring 612a and the first ratchet portion 612b are of an integrally formed plastic structure, the number of the first ratchet portions 612b is multiple, and the multiple first ratchet portions 612b are uniformly distributed in the circumferential direction of the positioning ring 612 a. The first ratchet portion 612b made of plastic has a certain deformation capability and a certain elastic recovery capability.
The lower slider 4 is provided with a barrel 9, a barrel rotation shaft 91 is arranged in the barrel 9, the barrel rotation shaft 91 is connected to a synchronization shaft 92 through a second ratchet mechanism, the synchronization shaft 92 is provided with a synchronization insertion hole 921, one end of the core bar 611 is provided with a synchronization insertion rod 611b matched with the synchronization insertion hole 921, so that the core bar 611 can rotate synchronously with the synchronization shaft 92, in this embodiment, the synchronization insertion rod 611b is a square rod, and correspondingly, the synchronization insertion hole 921 is a square hole. Defining the rotation direction of the sleeve 612 as a forward direction when the roll 6 is unwound and a reverse direction opposite to the forward direction; when the core bar 611 rotates reversely, the spring rotating shaft 91 can be driven to rotate reversely by the second ratchet mechanism, so as to store energy for the spring 90; when the core bar 611 rotates in the forward direction, the sleeve 612 can be driven to rotate in the forward direction by the first ratchet mechanism.
In this embodiment, as shown in fig. 15 to 18, the second ratchet mechanism includes a second ratchet portion 931, a second ratchet portion 932, a mounting seat 933, and a spring piece 934, the second ratchet portion 931 is fixed to the synchronizing shaft 92, and the mounting seat 933 is fixed to the spring rotating shaft 91. The second ratchet portion 932 is mounted on the mounting seat 933 by a mounting shaft 932a, and the spring piece 934 is mounted on the mounting seat 933 by a screw 934a and presses the second ratchet portion 932.
A base 94 is arranged in the barrel 9, and the base 94 is fixed on the lower sliding block 4; a first base plate 95 and a second base plate 96 are respectively fixed on two sides of the base 94, the synchronizing shaft 92 is mounted on the first base plate 95 through a first bearing 951, and the clockwork rotating shaft 91 is mounted on the second base plate 96 through a second bearing 961; a support ear 941 is further disposed on the base 94, and the synchronizing shaft 92 passes through a shaft hole on the support ear 941.
In use, the connecting rod 8 is pushed in a downstream direction, the toothed ring part 610 leaves the gap 5a and then is meshed with the rack 5, the toothed ring part 610 starts to rotate and drives the sleeve 612 to rotate in a forward direction through the first ratchet mechanism, and the film roll 6 is unwound as shown in fig. 19. When the film 62 needs to be replaced, the connecting rod 8 is pushed in the upstream direction, the core rod 611 rotates in the reverse direction, the spring 90 is driven to store energy through the second ratchet mechanism, but the sleeve 612 does not rotate at the moment and only moves in the upstream direction along with the whole core rod 611, because the fixed end of the film 62 is fixed on the sleeve 612, the film 62 covered on the touch screen 7 can be gradually uncovered along with the movement of the sleeve 612, when the core rod 611 moves to the position of the gap 5a, because the ring gear part 610 loses the restriction effect of the rack 5, the core rod 611 rotates in the forward direction rapidly under the action of the spring 90, and the sleeve 612 is driven to rotate in the forward direction through the first ratchet mechanism, so that the film is wound on the sleeve 612, and then the integrated structure of the wound film roll and the rotating rod 61 is taken down from the upper slider 3 and the lower slider 4, and a new film roll 6 is replaced.
By adopting the technical scheme, the control method and the system of the epidemic prevention elevator and the epidemic prevention elevator can lock the elevator through the elevator controller, unlock the elevator only when the film 62 covering the keys is replaced by a new one, judge whether the film 62 is replaced or not by setting the identifiable code on the film 62, and indicate that the film 62 is replaced when the identifiable code is identified as a new code; in addition, when the elevator is in an unlocked state, the elevator is locked after the condition of locking the elevator is triggered, and the film 62 is waited to be replaced next time. By the method, the situation that the film 62 is not replaced when needing to be replaced due to human factors can be effectively avoided, and therefore epidemic prevention of the elevator is facilitated.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (5)
1. An epidemic prevention elevator is characterized in that: comprises a control system of an epidemic prevention elevator;
the control system of epidemic prevention elevator includes:
the identifiable code carrier is fixedly arranged on the film and is used for bearing an identifiable code;
the identifiable code recognition device is connected with the elevator controller and used for recognizing the identifiable code and sending identifiable code information to the controller after recognizing the identifiable code;
the memory is connected with the elevator controller and used for storing the identifiable code received by the elevator controller;
the elevator controller is used for receiving the identifiable code information sent by the identifiable code recognition device, calling the identifiable code stored in the memory, comparing the identifiable code information with the identifiable code stored in the memory, judging whether the received identifiable code is a new code, unlocking the elevator when the received identifiable code is judged to be the new code, receiving a control instruction of a passenger, controlling the elevator to act according to the control instruction, judging whether an elevator locking condition is met, and locking the elevator when the elevator locking condition is met;
the epidemic prevention elevator also comprises a guide rail, a sliding block positioned on the guide rail, a rack arranged in parallel with the guide rail and a film roll which is separably arranged on the sliding block, wherein the axis of the film roll is vertical to the extending direction of the guide rail; the film roll comprises a rotating rod and a film wound on the outer side of the rotating rod, one end of the film is a fixed end fixed on the rotating rod, the other end of the film is a free end, a hard strip is arranged on the edge of the free end, and the hard strip can be detachably fixed on one side of a key area; a gear ring part which can be meshed with the rack is arranged on the rotating rod;
defining the advancing direction of the rotating rod as a downstream direction when the film roll is unwound, and defining the direction opposite to the advancing direction as an upstream direction; the two parallel guide rails are respectively arranged at two sides of the key area, each guide rail is provided with a sliding block, and the two sliding blocks are connected through a connecting rod;
one end of the guide rail is a material loading and unloading station which is used for installing and disassembling the film roll; the rack forms a vacancy at a position corresponding to the material loading and unloading station; the rotating rod comprises a core rod and a sleeve sleeved outside the core rod, the toothed ring is positioned on the core rod, and a first ratchet mechanism is arranged between the core rod and the sleeve; a spring box is arranged on the sliding block, a spring rotating shaft is arranged in the spring box and is connected to a synchronizing shaft through a second ratchet wheel and ratchet mechanism, a synchronizing jack is arranged on the synchronizing shaft, and a synchronizing inserting rod matched with the synchronizing jack is arranged at one end of the core rod, so that the core rod can rotate synchronously with the synchronizing shaft; defining the rotation direction of the sleeve as a forward direction when the film roll is unwound and the rotation direction opposite to the forward direction as a reverse direction; when the core bar rotates reversely, the spring rotating shaft can be driven to rotate reversely through the second ratchet wheel and ratchet mechanism so as to store energy for the spring; when the core rod rotates forwards, the sleeve can be driven to rotate forwards through the first ratchet wheel and ratchet mechanism.
2. The epidemic prevention elevator of claim 1, wherein: the control system of the epidemic prevention elevator further comprises a timer, the timer is connected with the elevator controller, the elevator controller is used for starting the timer to time when the received identifiable code is judged to be a new code, and when the preset time is over, the condition that the elevator is locked is judged to be met.
3. The epidemic prevention elevator of claim 1, wherein: the elevator controller is used for starting to record the number of times of pressing a key when a passenger inputs a control command when judging that the received identifiable code is a new code, and judging that the condition of locking the elevator is met when the number of times of pressing the key reaches a preset maximum number.
4. The epidemic prevention elevator of claim 1, wherein: the control system of the epidemic prevention elevator further comprises an ultraviolet light source and an ultraviolet camera, wherein the ultraviolet light source is used for projecting ultraviolet light to the film; the ultraviolet camera is connected with the elevator controller and used for acquiring an ultraviolet image of the film and sending the ultraviolet image to the elevator controller; the elevator controller is used for analyzing the ultraviolet image of the film, identifying a stain area, and judging that the elevator locking condition is met when the area of the stain area reaches a preset maximum value.
5. An epidemic prevention elevator, as claimed in any one of claims 1-4, wherein: the control system of the epidemic prevention elevator also comprises a touch screen, wherein the touch screen is connected with the elevator controller and is used for displaying virtual keys of the elevator; the elevator controller is used for judging whether the condition for replacing the virtual key position is met or not, and controlling the display to replace the virtual key to other positions which are not touched or not polluted to display when the condition for replacing the virtual key position is met; the condition for replacing the position of the virtual key comprises that a preset duration is finished or the number of times that the virtual key is touched reaches a preset upper limit.
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