CN215207916U - Device for preventing personnel on elevator car roof from impacting counterweight - Google Patents
Device for preventing personnel on elevator car roof from impacting counterweight Download PDFInfo
- Publication number
- CN215207916U CN215207916U CN202120731888.1U CN202120731888U CN215207916U CN 215207916 U CN215207916 U CN 215207916U CN 202120731888 U CN202120731888 U CN 202120731888U CN 215207916 U CN215207916 U CN 215207916U
- Authority
- CN
- China
- Prior art keywords
- car
- signal
- counterweight
- elevator
- alarm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The utility model relates to a device for preventing personnel on the top of an elevator car from impacting the counterweight, which comprises a position sensing device, an alarm device and an overhaul control device; the position sensing device is used for sensing the position of the elevator car which is relatively adjacent to the counterweight and is dangerous, and sending a sensing signal to the alarm device; the alarm device is used for receiving the induction signal of the position induction device and sending an alarm signal; and the maintenance control device receives the sensing signal or the alarm signal of the position sensing device and outputs a control signal to control the elevator to stop and run. When the maintenance sedan-chair top of daily maintenance was opened and was overhauld, when the position distance that can stand people on the sedan-chair top was 2 meters to heavy vertical distance, this was the danger area. The dangerous area gives an alarm and stops the control by sensing the magnetic isolation plate arranged on the car guide rail through the U-shaped photoelectric switch sensor arranged on the car. The device can effectively remind people, avoid shearing accidents and guarantee the safety of maintenance personnel.
Description
Technical Field
The utility model relates to an elevator safety inspection technique, in particular to prevent that elevator cab personnel from striking to heavy device.
Background
The elevator is used as a vertical transportation means and is widely applied to the production and the life of people. As a special device, the elevator maintenance device has certain particularity, complexity and danger, and maintenance personnel are easy to have accidents in the routine maintenance of the elevator. According to statistics, 33 elevator accidents happen in 2019 in China, and 29 people die. Among these accidents, there are 9 accidents caused by illegal operations or mishandling, mainly characterized by falling, collision, squeezing, shearing, and the like.
According to the regulation of an elevator maintenance manual, maintenance personnel need to be in a group of two persons during daily elevator maintenance. When the maintenance is carried out on the top of the car, one maintenance worker is required to stand at the top of the car to operate the maintenance control box to enable the elevator to run up and down, and the other maintenance worker is required to inspect and maintain parts in the shaft. Sometimes, maintenance personnel can stretch the upper half out of the guardrail of the car top and enter a counterweight operation area due to maintenance needs or thought negligence. When the elevator goes up with down, when the car will move to with to heavy parallel and level the position, the sedan-chair top with to being close to gradually between the heavy frame, form danger area, if the sedan-chair top dimension personnel with head or truck stretch to when running the region to heavy, will with to colliding with, produce and cut, lead to personnel serious injury, can take place even the death accident that personnel fall from the sedan-chair top. Therefore, it is very necessary to avoid or minimize such accidents by technical means.
Disclosure of Invention
In order to ensure the safety of detection personnel during elevator maintenance, a device for preventing personnel on the top of an elevator car from impacting a counterweight is provided.
The technical scheme of the utility model is that: a device for preventing personnel on the top of an elevator car from impacting a counterweight comprises a position sensing device, an alarm device and a maintenance control device;
the position sensing device is used for sensing the position of the elevator car which is relatively adjacent to the counterweight and is dangerous, and sending a sensing signal to the alarm device;
the alarm device is used for receiving the induction signal of the position induction device and sending an alarm signal;
and the maintenance control device receives the sensing signal or the alarm signal of the position sensing device and outputs a control signal to control the elevator to stop and run.
Preferably, the position sensing device comprises a magnetic isolation plate and a U-shaped photoelectric switch sensor, the U-shaped photoelectric switch sensor is arranged on each of two sides of the top of the lift car, the magnetic isolation plate matched with the magnetic inductor is fixed on a lift car guide rail through a magnetic isolation plate frame, and when the lift is overhauled and operated, the U-shaped photoelectric switch sensor outputs signals to the alarm device and the overhaul control device when meeting with the corresponding magnetic isolation plate.
Preferably, the magnetism isolating plate comprises an upward magnetism isolating plate, the upward magnetism isolating plate with the same height is fixedly installed on the two guide rails of the car respectively, and the installation position of the upward magnetism isolating plate is the height position of the car guide rail corresponding to the top of the car when the difference between the top of the upward car of the car and the bottom of the counterweight is 2 meters.
Preferably, the magnetism isolating plate comprises a descending magnetism isolating plate, the descending magnetism isolating plate with the same height is fixedly installed on the two guide rails of the car respectively, and the installation position of the descending magnetism isolating plate is the height position of the car guide rail corresponding to the top of the car when the difference between the bottom of the descending car of the car and the top of the counterweight is 2 meters.
Preferably, the alarm device receives an uplink or downlink sensing signal monitored by the position sensing device, outputs an acousto-optic alarm signal, and simultaneously outputs a control stop signal to the maintenance control device.
Preferably, the maintenance control device comprises a signal processing module, the signal processing module receives an uplink or downlink sensing signal monitored by the position sensing device or a stop signal output by the alarm device, the signal processing module controls to disconnect a normal maintenance output signal, and the elevator stops normal maintenance operation.
Preferably, the alarm device further comprises a warning mark, and the warning mark is fixed at the height position of the uplink and downlink magnetism isolating plate.
The beneficial effects of the utility model reside in that: the utility model relates to a prevent that elevator cab personnel from striking to heavy device can effectively remind, avoids taking place the shearing accident, ensures the safety of dimension guarantor personnel.
Drawings
FIG. 1 is a schematic view of a sensing device in a device for preventing a person on the top of an elevator car from striking a counterweight according to the present invention;
figure 2 is the utility model discloses prevent that elevator cab personnel from striking to maintain controlling means and alarm device schematic diagram in the heavy device.
The attached drawings are as follows: 1. a maintenance control device; 2. a signal processing module; 3. an uplink sense port signal; 4. a downlink sense port signal; 5. a car; 6. a counterweight; 7. dragging the steel wire rope; 8. a traction sheave; 9. a guide wheel; 10. an alarm device; 11. a car first guide rail; 12. a car second guide rail; 13. a counterweight first guide rail; 14. a counterweight second guide rail; 21. descending a first magnetism isolating plate; 22. a second magnetic shield is arranged at the lower part; 23. ascending a first magnetism isolating plate; 24. a second magnetic shield is arranged upwards; 31. a first U-shaped photoelectric switch sensor; 32. a second U-shaped photoelectric switch sensor; 41. a first guide shoe of the car; 42. a second guide shoe of the car; 43. a third guide shoe of the car; 44. a fourth guide shoe of the car; 45. a counterweight first guide shoe; 46. a counterweight second guide shoe; 47. a third guide shoe for the counterweight; 48. and a fourth guide shoe is matched.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model provides a prevent that sedan-chair top personnel from striking to heavy device, includes position induction system, overhauls controlling means, alarm device, position induction system responds to the car and to heavy position, alarm device, when operation is overhauld to sedan-chair top operation elevator, runs into in the well car with to heavy adjacent danger area, sends the acousto-optic warning, and the elevator will unable operation during the warning, overhauls controlling means, when alarm device sends out signal, controls the elevator stop motion, can operate the elevator again after a few seconds and overhaul the operation.
As shown in the schematic diagram of the position sensing device in fig. 1, a running space of the car 5 is between the first car guide rail 11 and the second car guide rail 12, and the car 5 is clamped and hung between the first car guide rail 11 and the second car guide rail 12 through the first car guide shoe 41, the second car guide shoe 42, the third car guide shoe 43 and the fourth car guide shoe 44; an operation space of the counterweight 6 is arranged between the counterweight first guide rail 13 and the counterweight second guide rail 14, and the counterweight 6 is clamped and hung between the first guide rail 13 and the counterweight second guide rail 14 through a counterweight first guide shoe 45, a counterweight second guide shoe 46, a counterweight third guide shoe 47 and a counterweight fourth guide shoe 48; the hoisting wire 7 connecting the car 5 and the counterweight 6 is connected across the traction sheave 8 and the guide sheave 9. A first descending magnetism isolating plate 21 and a first ascending magnetism isolating plate 23 are fixedly installed on the first car guide rail 11, a second descending magnetism isolating plate 22 and a second ascending magnetism isolating plate 24 are fixedly installed on the second car guide rail 12, the first descending magnetism isolating plate 21 and the second descending magnetism isolating plate 22 are arranged on the same horizontal position above the elevator passageway, and the first ascending magnetism isolating plate 23 and the second ascending magnetism isolating plate 24 are arranged on the same horizontal position below the elevator passageway. The positions of the upper and lower magnetic isolation plates are set according to the danger areas which are to run to the positions flush with the counterweight when the elevator car moves upwards and downwards. The first U-shaped photoelectric switch sensor 31 and the second U-shaped photoelectric switch sensor 32 are respectively arranged on two sides of the top of the car 5, the magnetic isolation plate matched with the magnetic inductor is fixed on the guide rail through the magnetic isolation plate frame, and when the elevator is overhauled and operated, the U-shaped photoelectric switch sensor sends out signals when meeting with the corresponding magnetic isolation plate, so that the operation position of the elevator can be effectively identified.
The maintenance control device is added, a signal processing module is added in the car top maintenance box, car position signals of the ascending induction port 3 and the descending induction port 4 are identified by utilizing a U-shaped photoelectric switch sensor arranged on the car top and a magnetic isolation plate on a guide rail, the car 5 is controlled to stop running and give an alarm (irrelevant to an elevator control system), finally, the aim of reminding car top maintenance personnel to pay attention to a dangerous area is achieved, a public button SB2 and ascending and descending buttons SB3 and SB4 are pressed again, and the elevator can be maintained and run again.
As shown in figure 2, a normally closed switch K1-1 of an inspection button SB1 is sent to an inspection control device, a car roof inspection indication function is displayed through X1, when the car roof inspection button is pressed to SB1, a normally open switch K1-2 of SB1 is closed, and Y is0The end signal enters the signal processing module, and the signal processing module Y is used for normal maintenance operation1The end outputs signals, a car roof maintenance common button SB2 is pressed, a normally open switch K2 of SB2 is closed, car roof maintenance up/down buttons SB3 and SB4 are pressed, a normally open switch K3 of SB3 and a normally open switch K4 of SB4 are closed, up and down maintenance control signals are sent to a maintenance control device to control the normal maintenance operation of the elevator, and a car roof maintenance up/down indication function is displayed corresponding to X2 and X3; when the signals of the up/down induction ports 3 and 4 are monitored, the signals are sent to an alarm device 10 for sound and light warning, and meanwhile, a signal processing module Y3The end receives the signal monitoring signal of the up/down induction ports 3 and 4 or the output signal of the alarm device 10, and the signal processing module controls Y1The end cuts off the normal maintenance output signal, and the elevator stops normal maintenance operation; after alarming for 3 seconds, when the common button SB2 for car top maintenance is pressed again, the signal processing module Y2The end signal outputs a signal to control the normal operation of the elevator.
Signal processing module capable of passing Y3Input signal of terminal to control Y1、Y2The output signal of (2) can stop the elevator when the alarm device sends out a signal, and the elevator can be operated again to normally overhaul and run after alarming for 3 seconds.
The alarm device mainly provides sound and light alarm when running in a dangerous area, and the alarm device can not work any more when the overhaul leaves the dangerous area. When the maintenance personnel maintain the elevator, the maintenance personnel open on the top of the car and overhaul, and when the car is about to move to and to the dangerous area of the heavy parallel and level position, the device can effectively remind, thereby avoiding shearing accidents and ensuring the safety of the maintenance personnel. When the maintenance sedan-chair top of daily maintenance was opened and was overhauld, when the position distance that can stand people on the sedan-chair top was 2 meters to heavy vertical distance, this was the danger area. The dangerous area senses a magnetic isolation plate arranged on a car guide rail through a U-shaped photoelectric switch sensor arranged on the car, and mainly functions to sense whether the spacing distance between the car and the counterweight is less than 2 meters.
The alarm device is divided into a warning mark and a photoelectric alarm. When the car roof can stand 2 meters away from the counterweight, a warning mark and a warning line for 'head collision with caution' are arranged on the hoistway. The font should be eye-catching, capable of long-lasting retention, at least 80cm in height and width; the acousto-optic alarm mainly reminds car top maintenance personnel to come to a dangerous area from sense organs through an acousto-optic alarm device on the car after the car and the counterweight reach the dangerous area by recognition, and notices that the body or four limbs enter the counterweight running area.
The U-shaped photoelectric switch sensor moves up and down along with the lift car, and when the U-shaped photoelectric switch sensor passes through the magnetism isolating plate, the magnetism isolating plate and the magnetic inductor are crossed to sense a position signal of a counterweight and transmit the position signal to the maintenance device. The maintenance device comprises a controller and a maintenance box installed on the car top, and the maintenance device can control maintenance operation of the elevator.
When the elevator car is detected to be overhauled downwards or upwards, the lower magnetism isolating plate or the upper magnetism isolating plate is intersected with the magnetic inductor, the emergency stop control device of the additional overhauling device enables the elevator to stop running, and the elevator can be operated again to overhaul and run after the alarm is given for a few seconds.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. A device for preventing personnel on the top of an elevator car from impacting a counterweight is characterized by comprising a position sensing device, an alarm device and a maintenance control device;
the position sensing device is used for sensing the position of the elevator car which is relatively adjacent to the counterweight and is dangerous, and sending a sensing signal to the alarm device;
the alarm device is used for receiving the induction signal of the position induction device and sending an alarm signal;
and the maintenance control device receives the sensing signal or the alarm signal of the position sensing device and outputs a control signal to control the elevator to stop and run.
2. The device for preventing the personnel on the top of the elevator car from impacting the counterweight according to claim 1, wherein the position sensing device comprises a magnetic isolation plate and a U-shaped photoelectric switch sensor, the U-shaped photoelectric switch sensors are respectively arranged on two sides of the top of the elevator car, the magnetic isolation plate matched with the magnetic inductor is fixed on a guide rail of the elevator car through a magnetic isolation plate frame, and when the elevator is overhauled and operated, the U-shaped photoelectric switch sensors and the corresponding magnetic isolation plates meet each other, and output signals of the U-shaped photoelectric switch sensors are sent to the alarm device and the overhaul control device.
3. The device for preventing personnel on the top of an elevator car from impacting the counterweight according to claim 2, wherein the magnetic isolation plate comprises an upward magnetic isolation plate, the upward magnetic isolation plates with the same height are fixedly installed on two guide rails of the car respectively, and the installation position of the upward magnetic isolation plate is the height position of the car guide rail corresponding to the top of the car when the difference between the top of the upward car of the car and the bottom of the counterweight is 2 meters.
4. The device for preventing personnel on the top of an elevator car from impacting the counterweight according to claim 2, wherein the magnetic isolation plates comprise descending magnetic isolation plates, the descending magnetic isolation plates with the same height are fixedly installed on the two guide rails of the car respectively, and the installation positions of the descending magnetic isolation plates are the height positions of the car guide rails corresponding to the top of the car when the difference between the bottom of the descending car of the car and the top of the counterweight is 2 meters.
5. The device for preventing personnel on the top of an elevator car from impacting the counterweight according to claim 3 or 4, wherein the alarm device receives an uplink or downlink sensing signal monitored by the position sensing device, outputs an acousto-optic alarm signal, and simultaneously outputs a control stop signal to the maintenance control device.
6. The device for preventing the personnel on the top of the elevator car from impacting the counterweight according to claim 5, wherein the maintenance control device comprises a signal processing module, the signal processing module receives the uplink or downlink sensing signals monitored by the position sensing device or the shutdown signal output by the alarm device, the signal processing module controls to disconnect the normal maintenance output signal, and the elevator stops normal maintenance operation.
7. The device for preventing the personnel on the top of the elevator car from impacting the counterweight according to claim 3 or 4, characterized in that the alarm device further comprises a warning mark, and the warning mark is fixed at the height positions of the upstream and downstream magnetic isolation plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120731888.1U CN215207916U (en) | 2021-04-08 | 2021-04-08 | Device for preventing personnel on elevator car roof from impacting counterweight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120731888.1U CN215207916U (en) | 2021-04-08 | 2021-04-08 | Device for preventing personnel on elevator car roof from impacting counterweight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215207916U true CN215207916U (en) | 2021-12-17 |
Family
ID=79446041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120731888.1U Expired - Fee Related CN215207916U (en) | 2021-04-08 | 2021-04-08 | Device for preventing personnel on elevator car roof from impacting counterweight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215207916U (en) |
-
2021
- 2021-04-08 CN CN202120731888.1U patent/CN215207916U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211765577U (en) | Colliery inclined shaft conveying system | |
| CN103058035A (en) | Elevator anti-falling safety net | |
| CN206069142U (en) | A kind of bidirectional braking device for during used during elevator falling | |
| CN215207916U (en) | Device for preventing personnel on elevator car roof from impacting counterweight | |
| CN202193526U (en) | Safety protection device of industrial elevator landing door | |
| CN203021204U (en) | Upper and lower layer anti-collision device for crane | |
| CN204728786U (en) | A kind of automatic Fencing system of ascending/decending of lift-sliding parking equipment | |
| CN107187978A (en) | A kind of elevator operation monitoring system and monitoring method | |
| CN201801314U (en) | Anti-falling device for mobile cab of gantry crane | |
| CN205772724U (en) | A kind of intelligent building elevator | |
| CN104806062A (en) | Automatic lifting-type fence device for lifting and transverse-moving parking equipment | |
| CN111402553B (en) | Ship lock anti-collision system with ship blocking rope lowering protection device | |
| CN210214458U (en) | Accidental movement alarm device for elevator car | |
| JPH0346985A (en) | Maintenance operating device for elevator | |
| CN201574010U (en) | Derail preventive device of construction elevator | |
| CN114541977A (en) | Safety protection system of A-type drilling tower for wire line coring | |
| CN104876090B (en) | For the safety guard without scaffold construction, circuit and method | |
| CN104512784A (en) | Elevator equipped with safety protection device | |
| CN110304533A (en) | A kind of escalator handrail finger pinch device | |
| CN204416839U (en) | A kind of elevator that safety guard is housed | |
| CN210176414U (en) | Weight limiter | |
| CN207293856U (en) | A kind of building hoist with detection device | |
| CN214652830U (en) | Detection device for building elevator | |
| CN216886708U (en) | Automatic gate interlocking control system for winding man car slope | |
| CN210193228U (en) | Bridge crane cart anti-shearing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |