CN115924672A - Elevator safety gear malfunction detection device - Google Patents
Elevator safety gear malfunction detection device Download PDFInfo
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- CN115924672A CN115924672A CN202310026212.6A CN202310026212A CN115924672A CN 115924672 A CN115924672 A CN 115924672A CN 202310026212 A CN202310026212 A CN 202310026212A CN 115924672 A CN115924672 A CN 115924672A
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- Prior art keywords
- safety gear
- alarm
- elevator safety
- car
- detection device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The invention provides a false action detection device of an elevator safety gear, which comprises a distance detection probe arranged at the bottom of a safety gear wedge block, a car top maintenance device electrically connected with the distance detection probe through a lead, and an alarm electrically connected with the car top maintenance device, wherein the distance detection probe transmits a car lifting guide rail transverse relative displacement value corresponding to the detected wedge block distance at the top of the distance detection probe to the car top maintenance device, and the car top maintenance device triggers the alarm to send out voice alarm when analyzing that the transverse relative displacement is larger than or equal to a preset alarm displacement value. The elevator safety gear malfunction detection device provided by the invention automatically detects the relative displacement of the safety gear wedge block relative to the car guide rail, thereby triggering early warning, reminding elevator safety inspection personnel to maintain the safety gear in advance, and preventing further safety problems.
Description
Technical Field
The invention relates to the technical field of elevator security, in particular to a false operation detection device for an elevator safety gear.
Background
At present, in people's daily life, the occasion of using the elevator is more and more extensive, and resident family building, market, building site even factory loading goods transportation all can use the elevator.
The safety gear is the safety protection device of elevator. The elevator safety gear device is a safety device which emergently stops a car and clamps the car on a guide rail under the operation of a speed limiter when the speed of an elevator exceeds the set limit speed of the speed limiter of the elevator or in the case of breakage and looseness of a suspension rope. It provides effective protection for the safe operation of the elevator.
The working principle of the elevator safety gear is as follows: the safety gear is an important safety part of elevator equipment, and can play an important role in safety guarantee when the elevator is overspeed and out of control. The working principle is as follows:
1. device actuation
The action of the safety gear device is that the speed limiter acts to enable the rope clamping gear to clamp the speed limiter rope, the speed limiter rope pulls the safety gear link mechanism along with the downward operation of the lift car, the safety gear link mechanism acts to drive the safety gear braking element to contact with the guide rail, and the safety gears on two sides of the guide rail are simultaneously clamped on the guide rail to achieve the braking of the lift car.
2. Mainly comprising
The safety gear is generally mounted on the bottom beam of the car or on the two side columns. Mainly comprises a clamp seat, a wedge block, a lifting rod, a lifting mechanism arranged on an upper beam of a lift car and the like.
3. Switching device
The corresponding safety switch device acts to stop the traction machine from rotating, when the safety tongs do not act, the wedge block and the working surface of the guide rail keep a clearance of 2 to 3 mm, the clearances on the two sides of the safety tongs are uniform, and when the safety tongs act, the lift car can be reliably stopped on the guide rail.
After elevator operation a period, have some powder cards in the middle of guide rail and voussoir, because receive (voussoir + powder + guide rail contact) and lead to the tapered wedge to produce the displacement because of too big frictional force, can lead to carrying to draw the structure to take place the malfunction, influence the security that the car system stopped.
Therefore, it is desirable to provide a malfunction detection device for elevator safety gear to solve the above technical problems.
Disclosure of Invention
The invention mainly solves the technical problem of providing an elevator safety gear misoperation detecting device, which automatically detects the relative displacement of a safety gear wedge block relative to a car guide rail so as to trigger early warning.
The invention provides a false action detection device of an elevator safety gear, which comprises a distance detection probe 1 arranged at the bottom of a wedge block 6 of a safety gear 5, a car top maintenance device 3 electrically connected with the distance detection probe 1 through a wire 2, and an alarm 4 electrically connected with the car top maintenance device 1, wherein the distance detection probe 1 transmits a car lifting guide rail 7 transverse relative displacement value corresponding to the detected distance of the wedge block 6 at the top of the distance detection probe to the car top maintenance device 1, and when the car top maintenance device 1 analyzes that the transverse relative displacement is more than or equal to a preset alarm displacement value, the alarm 4 is triggered to send out a voice alarm.
In an embodiment of the invention, when the car top maintenance device 1 analyzes that the transverse relative displacement is greater than or equal to a preset alarm displacement value, the alarm 4 is triggered to send out a voice alarm.
In one embodiment of the invention, the predetermined alarm displacement value is in the range of [1.5mm,2.2mm ].
In one embodiment of the invention, the predetermined alarm displacement values are 1.5mm, 2.0mm, 2.2mm.
In one embodiment of the present invention, the bottom of the wedge 6 is provided with a bolt 12, and the wedge 6 is connected with the distance detection probes 1 corresponding to the bolt 12.
In an embodiment of the present invention, the wire 2 is a two-core wire.
The beneficial effects of the invention are:
(1) The relative transverse displacement of the safety gear wedge block relative to the car guide rail is automatically detected, so that early warning is triggered;
(2) The alarm device is a sound-light alarm device, and can better remind elevator maintenance personnel to complete the maintenance of the safety tongs as soon as possible, so that the running safety of the elevator is ensured.
Drawings
Fig. 1 is a schematic view of the installation of a device for detecting the malfunction of an elevator safety gear and an elevator shaft of the invention;
FIG. 2 is an enlarged schematic view of a portion circled A in FIG. 1;
fig. 3 is a schematic perspective view of a safety gear of an elevator;
FIG. 4 is a partially exploded schematic view of the structure shown in FIG. 3;
fig. 5 is a schematic view of the connection structure of the safety gear and the transverse bottom beam of the car in the invention.
The numerical designations in the drawings of the specification correspond to the following component names, respectively:
1-a distance detection probe; 2-a wire; 3-car top maintenance device; 4-an alarm; 5-safety tongs; 6-wedge block; 7-car lifting guide rails; 8-a car; 9-an elevator shaft; 10-a transverse sill; 11-a lifting mechanism.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the drawings.
The elevator safety gear malfunction detection device shown in fig. 1 and 2 comprises a distance detection probe 1 installed at the bottom of a wedge block 6 of a safety gear 5, a car top maintenance device 3 electrically connected with the distance detection probe 1 through a wire 2, and an alarm 4 electrically connected with the car top maintenance device 1, wherein the distance detection probe 1 conveys a detected transverse relative displacement value of a car lifting guide rail 7 corresponding to the distance from the wedge block 6 at the top of the distance detection probe to the car top maintenance device 1, and when the car top maintenance device 1 analyzes that the transverse relative displacement is larger than or equal to a preset alarm displacement value, the alarm 4 is triggered to send out a voice alarm.
As shown in fig. 2 to 5, during the operation of the elevator, dust is adhered to the wedge 6 and the car lifting guide rail 7 due to long-term use, and the wedge 6 is relatively moved upwards during the process that the safety gear 5 is pulled by the pulling mechanism 11 to brake the car 8, so that the lateral distance of the wedge 6 relative to the car lifting guide rail 7 is shortened. When detecting that the transverse displacement of the wedge block 6 relative to the car lifting guide rail 7 is larger than or equal to a preset alarm value, the distance detection probe 1 triggers the alarm 4 to give out a voice alarm to remind security check personnel to timely reach a site, maintain the elevator safety gear, prevent misoperation of the lifting mechanism 11 and cause safety problems to operation of an elevator.
Therefore, the scheme of the invention can remind security check personnel to safely overhaul the elevator safety gear in advance, thereby preventing safety problems.
In an embodiment of the invention, when the car top maintenance device 1 analyzes that the transverse relative displacement is greater than or equal to a preset alarm displacement value, the alarm 4 is triggered to send out a voice alarm, and in the embodiment, the alarm 4 is an audible and visual alarm.
In an embodiment of the invention, the predetermined alarm displacement value is in the range of [1.5mm,2.2mm ]; further, the predetermined alarm displacement values are 1.5mm, 2.0mm, 2.2mm. Of course, in a particular application, the selection of the predetermined alarm displacement value may need to be selected according to a particular elevator, and is not limited thereto.
As shown in fig. 3 to 5, in an embodiment of the present invention, a bolt 12 is provided at the bottom of the wedge 6, and the wedge 6 is connected to the distance measuring probes 1 (shown in fig. 2) corresponding to the bolt 12. The distance measuring probe 1 can be easily mounted and dismounted.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. Elevator safety gear malfunction detection device, its characterized in that is including installing distance measuring probe (1) in safety gear voussoir bottom, connecting through wire (2) electricity examine and repair ware (3), electric connection sedan-chair top of distance measuring probe (1) and examine and repair alarm (4) of ware (1), apart from measuring probe (1) with the voussoir at its top that detects carry for sedan-chair top maintenance ware (1) apart from the car lifting guide rail lateral relative displacement value that corresponds, when sedan-chair top maintenance ware (1) analysis this lateral relative displacement more than or equal to predetermined warning displacement value, trigger alarm (4) and send audio alert.
2. The elevator safety gear malfunction detection device according to claim 1, characterized in that the car top maintenance device (1) triggers the alarm (4) to give a voice alarm when analyzing that the lateral relative displacement is greater than or equal to a predetermined alarm displacement value.
3. An elevator safety gear malfunction detection device according to claim 2, characterized in that the predetermined alarm displacement value is in the range of [1.5mm,2.2mm ].
4. The elevator safety gear malfunction detection device according to claim 2, wherein the predetermined alarm displacement values are 1.5mm, 2.0mm, and 2.2mm.
5. The elevator safety gear malfunction detection device according to any one of claims 1 to 4, characterized in that the bottom of the wedge 6 is provided with a bolt 12, and the wedge 6 is connected with the distance detection probes (1) corresponding to the bolt 12.
6. The elevator safety gear malfunction detection apparatus according to claim 5, wherein the wire is a two-core wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310026212.6A CN115924672A (en) | 2023-01-09 | 2023-01-09 | Elevator safety gear malfunction detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310026212.6A CN115924672A (en) | 2023-01-09 | 2023-01-09 | Elevator safety gear malfunction detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115924672A true CN115924672A (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310026212.6A Pending CN115924672A (en) | 2023-01-09 | 2023-01-09 | Elevator safety gear malfunction detection device |
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| CN (1) | CN115924672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142284A (en) * | 2023-11-01 | 2023-12-01 | 菱王电梯有限公司 | Safety gear detection method and system for elevator, equipment and medium |
-
2023
- 2023-01-09 CN CN202310026212.6A patent/CN115924672A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142284A (en) * | 2023-11-01 | 2023-12-01 | 菱王电梯有限公司 | Safety gear detection method and system for elevator, equipment and medium |
| CN117142284B (en) * | 2023-11-01 | 2024-01-23 | 菱王电梯有限公司 | Safety gear detection method and system for elevator, equipment and medium |
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