CN117486031A - Detection device for displacement of elevator safety tongs - Google Patents
Detection device for displacement of elevator safety tongs Download PDFInfo
- Publication number
- CN117486031A CN117486031A CN202311720167.0A CN202311720167A CN117486031A CN 117486031 A CN117486031 A CN 117486031A CN 202311720167 A CN202311720167 A CN 202311720167A CN 117486031 A CN117486031 A CN 117486031A
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- China
- Prior art keywords
- elevator
- detection
- lifting rod
- safety tongs
- safety gear
- 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.)
- Pending
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- 238000001514 detection method Methods 0.000 title claims abstract description 124
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 37
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000001960 triggered effect Effects 0.000 abstract description 5
- 239000003086 colorant Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/048—Testing of overspeed governor
-
- 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
- B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
-
- 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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to the technical field of elevator safety detection, in particular to a detection device for elevator safety tongs displacement, which comprises safety tongs, at least one lifting rod, a detection piece positioned on the lifting rod and a detection switch for detecting the position of the detection piece, wherein one end of the lifting rod is connected with the safety tongs, and the safety tongs push the lifting rod and trigger the detection switch when in a working state. The safety tongs are connected with the detection piece through the lifting rod, when the safety tongs are triggered to generate abnormal displacement under the condition that the load deflection of the elevator car is serious, the safety tongs push the lifting rod to drive the detection piece to move, and when the detection switch detects that the detection piece generates abnormal displacement, fault signals can be continuously sent out, so that an maintainer can quickly judge the fault condition of the elevator safety tongs, the fault cause of the elevator safety tongs can be checked without manually entering an elevator shaft, the overhaul and maintenance efficiency of the elevator is improved, and the carrying efficiency of the goods elevator is improved.
Description
Technical Field
The invention relates to the technical field of elevator safety detection, in particular to a detection device for elevator safety tongs displacement.
Background
The elevator safety gear is a mechanical braking device for limiting the running speed of an elevator car or counterweight, and when the speed of the elevator car or counterweight exceeds the speed set by a speed limiter or when suspension ropes break and loose, the elevator car is emergently stopped and clamped on a guide rail, and the elevator safety gear provides effective protection for the safe running of the elevator.
At present, in the actual daily maintenance or emergency repair process, when a freight elevator with a large load is used, under the condition that the load deflection of an elevator car is serious, an elevator safety gear can be triggered to cause abnormal displacement of the safety gear, serious elevator stopping is even caused, and at present, an maintainer is lack of other methods for rapidly checking the fault reason of the elevator safety gear except the fault condition of entering an elevator well to check the elevator safety gear.
Aiming at the defects, the detection device for the displacement of the elevator safety tongs needs to be developed to meet the use demands of vast users.
Disclosure of Invention
Aiming at the problem that the prior elevator safety tongs lack of rapid troubleshooting of the elevator safety tongs, the invention solves the technical problems by adopting the technical scheme that:
the utility model provides a detection device of elevator safety tongs displacement, includes safety tongs, at least one carry the pull rod, be located carry the detection spare on the pull rod and be used for detecting detect the detection switch of a position, carry the one end of pull rod and connect the safety tongs, the safety tongs is in when operating condition promote carry the pull rod and trigger detect switch.
Further, in some embodiments, the safety gear is provided with a stop for friction braking, which in the braked state brings about the lifting rod.
Further, in some embodiments, the limiting member moves obliquely to drive the lifting rod to move upwards or downwards.
Further, in some embodiments, the safety gear is provided with a chute channel in guiding fit with the limiting piece, and when the safety gear is in an operating state, the limiting piece moves obliquely along the chute channel.
Further, in some embodiments, the detecting switch further comprises a mounting frame for mounting the detecting switch, wherein the mounting frame is provided with a mounting through hole for facilitating quick mounting.
Further, in some embodiments, the device further comprises a overhauling device for outputting a detection result, the overhauling device is connected with and receives signals sent by the detection switch, the overhauling device is provided with a fault signal lamp, and the fault signal lamp comprises at least two indicator lamps.
Further, in some embodiments, the detection switch includes an infrared sensor for ranging, and a light outlet of the infrared sensor is disposed toward the direction of the detection member.
Further, in some embodiments, the detection switch includes a telescopic pressure bar for ranging, the telescopic pressure bar is provided with a touch pressure bar and an elastic member elastically pushing against the touch pressure bar, and one end of the touch pressure bar contacts the surface of the detection member.
Further, in some embodiments, the detection switch includes a weight sensor for detecting weight or tension, which may be mounted inside the elevator car or on top of the elevator car.
Further, in some embodiments, the detection switch is provided with an alarm that sounds.
The beneficial effects of the invention are as follows:
1. the safety tongs are connected with the detection piece through the lifting rod, when the safety tongs are triggered to generate abnormal displacement under the condition that the load deflection of the elevator car is serious, the safety tongs push the lifting rod to drive the detection piece to move, and when the detection switch detects that the detection piece generates abnormal displacement, fault signals can be continuously sent out, so that an maintainer can quickly judge the fault condition of the elevator safety tongs, the fault cause of the elevator safety tongs can be checked without manually entering an elevator shaft, the overhaul and maintenance efficiency of the elevator is improved, and the carrying efficiency of the goods elevator is improved.
2. According to the invention, the infrared sensor is adopted on the detection switch, the actual position of the detection piece can be measured through the infrared sensor, and when the detection piece exceeds the normal position range, the detection switch sends out a fault signal; the detection switch can also adopt a telescopic compression bar, the actual offset position of the detection piece can be measured through the telescopic compression bar, and when the detection piece exceeds the normal position range, the detection switch sends out a fault signal; the weight sensor can be adopted on the elevator car or the traction system, the actual bearing condition of the elevator can be measured through the weight sensor, when the actual bearing condition exceeds the normal position range, the detection switch can send out fault signals, and the actual condition is detected from multiple aspects, so that the detection accuracy is more reliable, fault sounds can be sent out through the alarm in time, the detection efficiency is improved, the possibility of misjudgment is reduced, and the use of detection personnel is facilitated.
3. The invention can also be connected with an overhauling device for displaying the detection condition, a fault signal lamp corresponding to the fault condition is arranged on the overhauling device, the elevator shaft is not required to be checked, and an overhauling person intuitively judges the actual state of the elevator safety tongs by observing the lamp color of the fault signal lamp, so that the overhauling time is shortened, and the overhauling efficiency is improved.
The invention will be further described with reference to the drawings and detailed description.
Drawings
Fig. 1 is a schematic diagram of a device for detecting displacement of an elevator safety gear according to the present invention.
Fig. 2 is an enlarged view of a detection device for displacement of an elevator safety gear according to the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a detection device for elevator safety gear displacement comprises a safety gear 1, at least one lifting rod 2, a detection piece 3 positioned on the lifting rod 2 and a detection switch 4 for detecting the position of the detection piece 3, wherein one end of the lifting rod 2 is connected with the safety gear 1, and the safety gear 1 pushes the lifting rod 2 and triggers the detection switch 4 when in a working state.
Specifically, in some embodiments, the safety tongs 1 are a mechanical braking device for limiting the running speed of an elevator car or a counterweight, when the speed of the elevator car or the counterweight exceeds the speed set by a speed limiter, or when a suspension rope breaks and loosens, the elevator car is emergently stopped and clamped on a guide rail, the elevator safety tongs provide an effective protection effect on the safe running of the elevator, the lifting rod 2 is a part of the safety tongs 1 connected with the detecting element 3, the detecting element 3 is arranged on the lifting rod 2, when the safety tongs 1 generate abnormal displacement due to serious unbalanced load of the elevator or trigger the safety tongs 1 to clamp the guide rail in a working state, the safety tongs 1 pushes the lifting rod 2 upwards and drives the detecting element 3, the detecting switch 4 continuously detects the position of the detecting element 3, when the detecting element 3 is driven to generate abnormal displacement, the detecting switch 4 sends a corresponding signal according to the displacement degree, the detecting element 3 displacement degree belongs to a normal range, then the detecting switch 4 sends out a signal according to the displacement degree, and the detecting element 3 continues to send out a signal when the detecting element exceeds the normal displacement degree, the detecting element is detected by the detecting element 4, and the detection signal is not required to send out a normal signal when the elevator is detected by the detecting element is out a normal state, and the detection signal is not required to be detected, and the inspection efficiency is improved.
As shown in fig. 1 and 2, the safety gear 1 is provided with a stop element 11 for friction braking, the stop element 11 driving the lifting rod 2 in the braked state.
Specifically, in some embodiments, the limiting part 11 is a brake part for clamping the guide rail when triggering the safety tongs 1, the limiting part 11 is connected with the lifting rod 2 in a matched manner, when the elevator car is subject to uncontrolled falling or serious unbalanced load displacement, the limiting part 11 pushes the lifting rod 2 to drive the detecting part 2, so that the detecting switch 4 detects abnormal displacement, fault signals are fed back in time, detection time is shortened, and detection efficiency is improved.
More specifically, the limiting member 11 clamps the guide rail when controlling the elevator to fall out of control or severely unbalanced load, when the clamping state of the limiting member 11 needs to be released, the limiting member 11 can be ejected out through the elasticity of the reset elastic member, so that the limiting member 11 is released from the guide rail to reset to the unclamped state, the safety tongs 1 can be continuously used, the elevator car can be restored to normal operation, and optionally, the reset elastic member can be formed by a spring with larger elasticity, a spring sheet or other elastic structures and the like.
As shown in fig. 1 and 2, the limiting member 11 moves obliquely to drive the lifting rod 2 to move upwards or downwards.
Specifically, in some embodiments, when the safety gear 1 is triggered to cause abnormal displacement, the limiting piece 11 moves the clamping guide rail obliquely towards the center of the safety gear 1 to brake the operation of the elevator, and meanwhile, the limiting piece 11 pushes the lifting rod 2 and drives the detecting piece 3 to trigger the detecting switch 6.
As shown in fig. 1 and 2, the safety gear 1 is provided with a chute channel 12 in guiding fit with the limiting piece 11, and when the safety gear 1 is in a working state, the limiting piece 11 moves obliquely along the chute channel 12.
Specifically, in some embodiments, the safety gear 1 is provided with a chute channel 12 that facilitates clamping and sliding of the limiting member 11, the chute channel 12 is arranged in the safety gear 1 in an eight shape with a narrow upper part and a wide lower part or with a wide upper part and a narrow lower part, the limiting member 11 is installed in the chute channel 12, when an elevator suddenly drops down or severely deflects, the safety gear 1 is triggered to be in a working state and drives the limiting member 11, the limiting member 11 clamps a guide rail along the chute channel 12 towards the center of the safety gear 1 to brake the operation of the elevator, and meanwhile, the lifting rod 2 is pushed upwards along the chute channel 12 and drives the detecting member 3 to trigger the detecting switch 6.
As shown in fig. 1 and 2, the detecting switch further comprises a mounting frame 6 for mounting the detecting switch 4, and the mounting frame 6 is provided with a mounting through hole 61 for facilitating quick mounting.
Specifically, in some embodiments, the mounting frame 6 is used for installing the detection switch 4 at a position near the detection member 3, the space inside the elevator hoistway and outside the elevator car is relatively complex, it is generally inconvenient to directly install the detection switch 4, the mounting frame 6 is provided with an installation through hole 61 convenient for quick installation, and the mounting frame 6 can be installed outside the elevator car by presetting a form of hanging a part or installing a screw bolt for pre-opening the installation hole outside the elevator car, so that the detection switch 4 is convenient to install, the mounting frame 6 is simple in structure and convenient to install, the position of the detection switch 4 is convenient to adjust through the mounting frame 6, the installation difficulty of the detection switch 4 is reduced, and the installation efficiency of the detection switch 4 is improved.
As shown in fig. 1 and 2, the device further comprises a overhauler 5 for outputting a detection result, the overhauler 5 is connected with and receives a signal sent by the detection switch 4, the overhauler 5 is provided with a fault signal lamp 51, and the fault signal lamp 51 comprises at least two indicator lamps.
Specifically, in some embodiments, the overhauling device 5 is a device for outputting the detection result of the detection switch 4, is installed at a position on the elevator car and is convenient to overhaul, the detection switch 4 is connected through a signal cable, when serious unbalanced load occurs in the elevator car, although an overhauling person does not need to enter the elevator hoistway to check the actual condition, the unbalanced load condition can be judged by collecting the signal of the detection switch 4, the step of collecting the signal still exists, and the overhauling device 5 can present the signal received from the detection switch 4 to the overhauling person in the form of a display screen, an indicator light or a gate gear, so that the overhauling person can conveniently and intuitively check.
Specifically, in some embodiments, the overhauling device 5 is provided with a fault signal lamp 51 for facilitating overhauling personnel to distinguish fault states, the fault signal lamp 51 can be divided into a plurality of indicator lamps with different lamp colors and different display contents, the basic indicator lamps comprise at least two or more kinds of red lamps and green lamps, and when the red lamps are lighted, the position of the safety tongs 1 exceeds a normal range; when the green light is on, the position of the safety tongs 1 is in a normal range.
Optionally, the indicator light may also comprise other light colors for displaying content, for example, when the yellow light is lighted, the elevator has reached the upper bearing limit; when the white lamp is lighted, the overhauling device 5 is disconnected with the detection switch 4 or does not receive various indicator lamp types such as signals.
As shown in fig. 1 and 2, the detection switch 4 includes an infrared sensor for distance measurement, and a light outlet of the infrared sensor is disposed toward the detection member 3.
Specifically, in some embodiments, the infrared sensor is a sensor for detecting infrared signals, information such as existence, distance, direction and speed of an object can be detected by sensing infrared radiation in the environment, the detection switch 4 can measure the distance between the infrared sensor and the detection member 3, the light outlet of the infrared sensor is arranged towards the direction of the detection member 3, and the distance data is collected for comparison analysis, so as to judge whether the position movement of the detection member 3 exceeds the normal range.
As shown in fig. 1 and 2, the detection switch 4 includes a telescopic pressure lever for ranging, the telescopic pressure lever is provided with a pressure lever and an elastic member elastically pushing the pressure lever, and one end of the pressure lever contacts the surface of the detection member 3.
Alternatively, the elastic member may be a spring, a shrapnel or other elastic structure, and preferably, in this embodiment, the elastic member is a spring.
Specifically, in some embodiments, the telescopic compression bar is an elastically telescopic support bar, and is installed on the detection switch 4 and used for measuring the distance from the detection piece 3, the telescopic compression bar is provided with a compression bar and an elastic piece which elastically pushes against the compression bar, one end of the compression bar contacts the surface of the detection piece 3, when the detection piece 3 moves towards or away from the direction of the detection switch 4, the detection piece 3 pushes the compression bar or the elastic piece pushes against the compression bar, the detection switch 4 measures the moving distance of the compression bar to judge the actual position of the detection piece 3, and the elastic piece always pushes against the compression bar to contact the surface of the detection piece 3, so that the accuracy of measured data is ensured.
As shown in fig. 1 and 2, the detection switch 4 includes a weight sensor for detecting weight or tension, which may be installed inside the elevator car or at the top of the elevator car.
Specifically, in some embodiments, the weight sensor is a device for measuring the weight or the inclined tension of an object, the weight and the inclined tension of the object are determined by measuring the force applied by the object to the sensor, the weight sensor can be installed under the floor in the elevator car, whether the load is overweight or not is determined by detecting the weight born by the floor, and a plurality of weight sensors are distributed at different positions of the floor, so that the stress distribution condition of the floor is detected, and the unbalanced load condition of the elevator car is determined; the weight sensor can also be installed on the top of the elevator car, whether the cargo is overweight or not is judged by detecting the compression degree and the tension degree, a plurality of weight sensors are distributed and arranged at the corners of the top of the elevator car and are connected with the weight sensors at the central position, and when the elevator car is inclined, the weight sensors at the central position can detect the abnormal stress of the inclined direction, so that the inclination degree of the elevator car is detected, and the unbalanced load condition of the elevator car is judged.
As shown in fig. 1 and 2, the detection switch 4 is provided with an alarm that sounds.
Specifically, in some embodiments, the alarm is a device for sending an alarm signal to passengers or rescue workers in an emergency, and is composed of one or more sound generators, which can send out a high-pitched sound or an emergency alarm sound, when the elevator car falls out of control or is heavily unbalanced, the detection switch 4 can detect the abnormal displacement of the safety tongs 1 through the detection member 3, although the maintenance personnel can judge the unbalanced load condition through collecting the signal of the detection switch 4 without entering the elevator hoistway to check the actual condition, the step of collecting the signal still exists, the maintenance device 5 can quickly inform the user and the maintenance personnel through the alarm after receiving the abnormal displacement signal sent by the detection switch 4, and also is convenient for the personnel trapped in the elevator car to inform the outside to accelerate the assistance efficiency, thereby improving the assistance efficiency.
As shown in fig. 1 and 2, the embodiment of example 1 of the present invention is as follows:
the working principle of the invention is as follows:
the safety tongs 1 are arranged outside the elevator car and located between the elevator car and the guide rail, the limiting piece 11 is arranged in the chute channel 12, the limiting piece 11 is fixedly connected to one end of the lifting rod 2, the lifting rod 2 is provided with a detecting piece 3, the detecting switch 4 is arranged at the position, close to the detecting piece 3, outside the elevator car through the mounting frame 6, the detecting switch 4 detects the actual position of the detecting piece 3 through the infrared sensor, the light outlet of the infrared sensor of the detecting switch 4 is arranged towards the direction of the detecting piece 3, the overhauling device 5 is arranged in the elevator car, and the detecting switch 4 is connected with the overhauling device 5 through the signal cable to complete the installation of the detecting device;
under the conditions of normal operation and normal load of the elevator, the safety tongs 1 do not generate displacement, the infrared sensor detects that the position of the detection piece 3 is in a normal floating range, the detection switch 4 continuously sends a signal that the position of the safety tongs 1 is in the normal range to the overhauling device 5, and the indicator lamp of the fault signal lamp 51 is a green light;
under the condition that serious unbalanced load occurs in an elevator, the safety tongs 1 generate abnormal displacement, the safety tongs 1 drive the detection piece 3 to move through the lifting rod 2, when the moving amplitude of the detection piece 3 exceeds a preset normal floating range, the detection switch 4 continuously sends a signal that the position of the safety tongs 1 exceeds the normal range to the overhauler 5, an indicator lamp of the fault signal lamp 51 is a bright red lamp, and an alarm sounds;
under the condition that the elevator falls out of control, the elevator speed limiter triggers the safety tongs 1 to enable the limiting piece 11 to clamp the guide rail to limit the falling speed of the elevator car until the elevator stops falling, the limiting piece 11 drives the detecting piece 3 to move through the lifting rod 2, when the moving amplitude of the detecting piece 3 exceeds a preset normal floating range, the detecting switch 4 continuously sends a signal that the position of the safety tongs 1 exceeds the normal range to the overhauling device 5, an indicator lamp of the fault signal lamp 51 is a bright red lamp, and the alarm sounds;
after the danger is relieved by the elevator, the reset elastic piece elastically ejects out the limiting piece 11, so that the limiting piece 11 is reset and the guide rail is loosened, and the elevator is restored to normal operation after the limiting constraint of the safety tongs 1 is relieved.
As shown in fig. 1 and 2, the embodiment of example 2 of the present invention is as follows:
unlike embodiment 1, the detection switch 4 detects the actual position of the detection member 3 by using the telescopic strut, the elastic member elastically pushes against the pressing rod, so that the pressing rod always contacts the surface of the detection member 3, when the movement amplitude of the detection member 3 exceeds the preset normal floating range, the detection member 3 pushes the telescopic strut to trigger the detection switch 4 to send a signal that the position of the safety tongs 1 exceeds the normal range to the overhauler 5, the indicator lamp of the fault signal lamp 51 is a bright red lamp, and the alarm sounds.
The foregoing examples are provided to further illustrate the technical contents of the present invention for the convenience of the reader, but are not intended to limit the embodiments of the present invention thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The utility model provides a detection device of elevator safety tongs displacement which characterized in that: the safety gear comprises a safety gear (1), at least one lifting rod (2), a detection piece (3) arranged on the lifting rod (2) and a detection switch (4) used for detecting the position of the detection piece (3), wherein one end of the lifting rod (2) is connected with the safety gear (1), and the safety gear (1) pushes the lifting rod (2) and triggers the detection switch (4) when in a working state.
2. The elevator safety gear displacement detection device according to claim 1, wherein: the safety tongs (1) are provided with limiting parts (11) for friction braking, and the limiting parts (11) drive the lifting rod (2) in a braking state.
3. The elevator safety gear displacement detection device according to claim 2, wherein: the limiting piece (11) moves obliquely to drive the lifting rod (2) to move upwards or descend.
4. A detection device for displacement of safety gear of elevator according to claim 3, characterized in that: the safety tongs (1) are provided with chute channels (12) which are in guiding fit with the limiting pieces (11), and when the safety tongs (1) are in a working state, the limiting pieces (11) move obliquely along the chute channels (12).
5. The elevator safety gear displacement detection device according to claim 1, wherein: still including being used for installing mounting bracket (6) of detecting switch (4), mounting bracket (6) have been seted up and have been convenient for install installation through-hole (61) fast.
6. The elevator safety gear displacement detection device according to claim 1, wherein: the detector is characterized by further comprising a detector (5) for outputting detection results, wherein the detector (5) is connected with and receives signals sent by the detection switch (4), the detector (5) is provided with a fault signal lamp (51), and the fault signal lamp (51) comprises at least two indicator lamps.
7. The elevator safety gear displacement detection device according to claim 1, wherein: the detection switch (4) comprises an infrared sensor for distance measurement, and a light outlet of the infrared sensor is arranged towards the direction of the detection piece (3).
8. The elevator safety gear displacement detection device according to claim 1, wherein: the detection switch (4) comprises a telescopic compression bar for ranging, the telescopic compression bar is provided with a contact compression bar and an elastic piece for elastically propping up the contact compression bar, and one end of the contact compression bar is contacted with the surface of the detection piece (3).
9. The elevator safety gear displacement detection device according to claim 1, wherein: the detection switch (4) comprises a weight sensor for detecting weight or tension, which weight sensor can be mounted inside the elevator car or on top of the elevator car.
10. The elevator safety gear displacement detection device according to claim 1, wherein: the detection switch (4) is provided with an alarm capable of sounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311720167.0A CN117486031A (en) | 2023-12-13 | 2023-12-13 | Detection device for displacement of elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311720167.0A CN117486031A (en) | 2023-12-13 | 2023-12-13 | Detection device for displacement of elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117486031A true CN117486031A (en) | 2024-02-02 |
Family
ID=89672891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311720167.0A Pending CN117486031A (en) | 2023-12-13 | 2023-12-13 | Detection device for displacement of elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117486031A (en) |
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2023
- 2023-12-13 CN CN202311720167.0A patent/CN117486031A/en active Pending
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