CN108609445B - A car door lock protection device - Google Patents
A car door lock protection device Download PDFInfo
- Publication number
- CN108609445B CN108609445B CN201611129546.2A CN201611129546A CN108609445B CN 108609445 B CN108609445 B CN 108609445B CN 201611129546 A CN201611129546 A CN 201611129546A CN 108609445 B CN108609445 B CN 108609445B
- Authority
- CN
- China
- Prior art keywords
- air inlet
- protective cover
- inlet valve
- door lock
- car door
- 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.)
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- 230000001681 protective effect Effects 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 abstract description 5
- 230000003064 anti-oxidating effect Effects 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 description 32
- 239000007789 gas Substances 0.000 description 16
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000010892 electric spark Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Lock And Its Accessories (AREA)
Abstract
本发明涉及一种轿门门锁保护装置。本发明的轿门门锁保护装置，包括保护罩、储气罐、浓度检测器和控制器；所述储气罐经一进气阀与所述保护罩连接，所述保护罩罩设在开关体和锁座上，所述保护罩的一侧设置有供锁钩穿过的开口，所述储气罐上还设置有排气口，所述浓度检测器设置在所述保护罩内，所述控制器与所述浓度检测器和进气阀信号连接。本发明的轿门门锁保护装置具有结构简单、防氧化、防硫化、自动化程度高、延长门锁使用寿命的优点。
The invention relates to a car door door lock protection device. The car door lock protection device of the present invention includes a protective cover, a gas storage tank, a concentration detector and a controller; the gas storage tank is connected to the protective cover through an intake valve, and the protective cover is provided at the switch On the body and the lock seat, one side of the protective cover is provided with an opening for the lock hook to pass through, the gas storage tank is also provided with an exhaust port, and the concentration detector is arranged in the protective cover, so The controller is signally connected to the concentration detector and the intake valve. The car door door lock protection device of the invention has the advantages of simple structure, anti-oxidation, anti-vulcanization, high degree of automation, and prolonging the service life of the door lock.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a car door lock protection device.
Background
The door lock of the elevator is an essential part of the elevator. The existing asynchronous door car door lock lifts a hook after a door horizontally moves for a certain distance, namely, in a certain distance before the hook is lifted, a car door lock switch still needs to be closed, so that a contact rod of the car door lock switch can rub a switch connecting piece metal sheet for a certain distance in a power-on state.
When the metal sheet of the connecting piece leaves the contact of the switch body, a pulling arc is easy to form, and the switch is easy to oxidize or vulcanize under the well environment. Because the arc is pulled to form electric spark, the heat friction accelerates the abrasion of the metal sheet of the switch connecting piece and the switch contact rod, when the effective working part of the contact rod is abraded or the pit abraded by the metal sheet of the connecting piece is larger and larger, the car door lock switch is stolen to stop because the car door lock switch contacts the insulating part at a certain point, so that the safety loop is cut off to make the elevator suddenly stop.
However, the prior art cannot solve the technical problems that the car door lock is easy to oxidize or vulcanize due to the generation of the arc, so that the service life of the car door lock is short and the car door lock is easy to lose efficacy.
Disclosure of Invention
Based on the above, the invention aims to provide a car door lock protection device which has the advantages of simple structure, oxidation resistance, vulcanization resistance, high automation degree and prolonged service life of a door lock.
A car door lock protection device comprises a protection cover, a gas storage tank, a concentration detector and a controller; the gas holder through an admission valve with the safety cover is connected, the safety cover is established on the switch body and lock seat, one side of safety cover is provided with the opening that supplies the locking hook to pass, still be provided with the gas vent on the gas holder, concentration detector sets up in the safety cover, the controller with concentration detector and admission valve signal connection.
According to the car door lock protection device, the gas storage tank, the protection cover and the concentration detector are arranged, inert gas is supplemented into the protection cover through the gas storage tank, the concentration detector detects the concentration of oxygen or sulfide in the protection cover in real time, the oxygen or sulfide is fed back to the controller, and the inert gas is controlled to enter the protection cover in time, so that the problem that an electric spark is generated when a switch body and a connecting piece are in contact with each other and is easy to oxidize or vulcanize is solved, and the service life of a car door lock switch is prolonged.
Further, still include sealed the pad, sealed the pad setting is on the latch hook, sealed pad with the opening cooperation of safety cover is in order to seal the safety cover.
Further, still include discharge valve, discharge valve sets up on the gas vent of safety cover. And controlling the inert gas by using the exhaust valve to extrude the air or sulfide in the protective cover.
The air inlet pressure sensor and the exhaust pressure sensor are respectively arranged at the outlet of the air inlet valve and the outlet of the exhaust valve, and the air inlet pressure sensor and the exhaust pressure sensor are in signal connection with the controller. Respectively detecting the air inlet pressure and the exhaust pressure through an air inlet pressure sensor and an exhaust pressure sensor, further calculating the pressure difference between the air inlet pressure and the exhaust pressure, and controlling the air inlet valve to open and supplementing inert gas into the protective cover by the controller when the pressure difference between the air inlet pressure and the exhaust pressure is increased to a certain value; in addition, the combination of the intake pressure sensor and the exhaust pressure sensor can form double closed loop feedback with the concentration sensor, and can complement and offset each other so as to keep the inert gas in the protective cover at stable concentration and pressure.
Further, the admission valve includes the air intake valve body and admission valve motor, the admission valve motor is used for the drive the air intake valve body is opened and is closed, the admission valve motor with controller signal connection. The air inlet valve motor drives the air inlet valve body to open and close, so that the inert gas in the air storage tank is controlled to enter the protective cover.
Further, the air inlet valve motor is a linear motor.
Further, the air inlet valve is an electromagnetic pneumatic valve.
Further, the air storage tank is arranged on the car top or the landing door upper sill.
Compared with the prior art, the car door lock protection device is provided with the gas storage tank, the protection cover and the concentration detector, inert gas is supplemented into the protection cover by the gas storage tank, the concentration detector detects the concentration of oxygen or sulfide in the protection cover in real time, the oxygen or sulfide concentration is fed back to the controller, and the inert gas is controlled to enter the protection cover in time, so that the problem that the switch body and the connecting piece are easy to oxidize or vulcanize when electric sparks are generated due to contact is solved, and the service life of a car door lock switch is prolonged; the arrangement of the air inlet pressure sensor and the exhaust pressure sensor can further optimize the inert gas supplement process in the protective cover, and can supplement the inert gas with the concentration detector. The car door lock protection device has the characteristics of simple structure, oxidation resistance, vulcanization resistance, high automation degree, prolonged service life of the door lock and the like.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a car door lock protection device of the present invention.
Fig. 2 is a schematic structural view of the latch hook.
Fig. 3 is a schematic view of another angle of the shackle.
Fig. 4 is a schematic view of the structure of the protective cover.
Fig. 5 is a control schematic diagram of the car door lock protection device of the present invention.
Detailed Description
Please refer to fig. 1-5. First, a lock mechanism 10 for installing the car door lock protection device of the present invention is described, which includes a hanger plate 11, a latch hook 12, a lock base 13, a switch body 14, a connecting member 15, and a connecting base 16. Hang link plate 11 and slide through a guide rail and set up on the threshold of a layer door, the one end of latch hook 12 is fixed hang link plate 11 is last, lock seat 13 and switch body 14 all set up on the threshold of a layer door just switch body 14 is located one side of latch hook 12 slip orbit, be provided with on latch hook 12 be used for with switch body 14 contact connecting piece 15, latch hook 12 passes through connect the base 16 to be fixed hang link plate 11 is last. The switch body 14 is provided with a contact which is in contact with the connecting piece 15.
The car door lock protection device comprises a protective cover 21, an air storage tank 22, a concentration detector and a controller 23. The protective cover 21 and the air storage tank 22 of this embodiment are both disposed above the landing door upper sill, and the air storage tank 22 can be disposed on the car roof. The gas holder 22 through an admission valve 24 with the safety cover 21 is connected, the safety cover 21 covers and establishes on the switch body 14 and the lock seat 13, one side of safety cover 21 is provided with the confession the opening 211 that latch hook 12 passed, still be provided with the gas vent 212 on the gas holder 22, concentration detector sets up in the safety cover 21, controller 23 with concentration detector and admission valve 24 signal connection.
The car door lock protection device further comprises a sealing gasket 17, wherein the sealing gasket 17 is arranged on the lock hook 12, and the sealing gasket 17 is matched with the opening of the protective cover 21 to seal the protective cover 21.
The protective cover 21 of the present embodiment is preferably configured as a hexahedron structure, and the opening 211 is formed on the left side surface or the right side surface of the protective cover, the latch hook 12 can pass through the opening 211, and the sealing gasket 17 can seal the opening 211 when the door is closed, so that a sealed space is formed in the protective cover 21. In order to prevent the switch body 14 from being oxidized by the spark generated when it contacts the connector 15, an inert gas such as nitrogen or argon is stored in the gas container 22. When provided, it may be preferable to direct the outlet of the inlet valve 24 toward the switch body 14 and the connector 15, so that when the inert gas is replenished, the newly introduced inert gas can quickly surround the switch body 14 and the connector 15, preventing both from oxidation or vulcanization.
The car door lock protection device of the embodiment is also provided with an exhaust valve, an air inlet pressure sensor and an exhaust pressure sensor. The exhaust valve is provided at an exhaust port of the protective cover 21. The air or the sulfide in the protective cover 21 is extruded by controlling the inert gas through the exhaust valve. The intake pressure sensor and the exhaust pressure sensor are respectively arranged at the outlet of the intake valve 24 and the outlet of the exhaust valve, and the intake pressure sensor and the exhaust pressure sensor are in signal connection with the controller 23. The exhaust valve pulling spring structure of the embodiment opens or closes under the pressure.
Respectively detecting the air inlet pressure and the exhaust pressure by an air inlet pressure sensor and an exhaust pressure sensor, further calculating the pressure difference between the air inlet pressure and the exhaust pressure by a controller 23, and controlling the opening of an air inlet valve 24 and supplementing inert gas into the protective cover 21 by the controller 23 when the pressure difference between the air inlet pressure and the exhaust pressure is increased to a certain value; in addition, the combination of the intake pressure sensor and the exhaust pressure sensor can form a double closed loop feedback with the concentration sensor, which can complement and offset each other to maintain a stable concentration and pressure of the inert gas in the protective cover 21. This embodiment employs a double closed loop control of current and voltage.
The present embodiment also preferably provides a pressure gauge at each of the inlet valve 24 outlet and the exhaust valve outlet for indicating the pressure at the inlet valve 24 outlet and the exhaust valve outlet.
The air inlet valve 24 of this embodiment includes an air inlet valve body and an air inlet valve motor, the air inlet valve motor is used for driving the air inlet valve body is opened and closed, the air inlet valve motor with controller 23 signal connection. The air inlet valve motor drives the air inlet valve body to open and close, so that the inert gas in the gas storage tank 22 is controlled to enter the protective cover 21. The air inlet valve motor is a linear motor. The intake valve 24 may be an electromagnetic pneumatic valve.
It should be noted that the car door lock protection device of the invention is also applicable to the existing floor door lock.
The working principle of the car door lock protection device is as follows:
the concentration monitor detects the concentration of the inert gas in the shield 21 in real time and transmits a detection signal to the controller, which controls the opening degree of the intake valve 24, thereby controlling the amount of the inert gas introduced into the shield 21.
Let the intake pressure be pAExhaust pressure pBAnd the rated pressure difference between the two is delta p.
At initial installation,. DELTA.p<pA-pBP to be detected by the intake pressure sensor and the exhaust pressure sensor, respectivelyAAnd pBThe inert gas is transmitted to a controller which controls the air inlet valve 24 to be opened, and the inert gas is continuously input into the protective cover 21 until delta p is more than or equal to pA-pB。
In addition, the concentration monitor performs multi-point measurement on the oxygen or sulfide concentration in the protective cover 21 to acquire data, and averages the measurement results at each position, when the concentration of oxygen or sulfide is high, the value of Δ p is adjusted to be small, the air inlet valve 24 is controlled to be opened, and inert gas is supplemented into the protective cover 21.
The trigger value of the concentration monitor can also be preset as x, when the concentration C of oxygen or sulfide measured by the protective cover 21 is greater than x, the rated differential pressure delta p can be corrected in real time by inputting a current signal of 4-20mA to the controller for operation after A/D conversion.
When the car door is opened, the lock hook 12 moves horizontally to one side, the door opening signal enables the controller to give a command, the air inlet valve 24 emits inert gas and emits the inert gas into the protective cover 21, electric sparks generated by electric arcs when the switch body 14 and the connecting piece 15 rub are prevented from contacting with air, and therefore the switch body 14 and the connecting piece 15 are prevented from being oxidized too fast.
In the process of closing the car door, due to the fact that the door hanging wheel and other suspension parts form wind pressure, the original balance in the protective cover 21 is broken, and part of air can enter the protective cover 21. When the door is closed to a certain position, the controller controls the opening of the intake valve 24 to supply the inert gas into the protective cover 21.
After the car door is completely closed, the interior of the protective cover 21 is in a sealed state. When the concentration detector detects that the concentration of the inert gas is lower, the inert gas can be supplemented into the protective cover 21 after the feedback signal is given to the controller, along with continuous supplementation, the pressure in the protective cover 21 rises, the exhaust valve is opened under enough pressure, the air is forced to sink in the supplementing process because the air density is greater than the inert gas, and when the exhaust valve is opened, the air runs away at the first time. When the air pressure in the protective cover 21 is reduced to a certain degree (a certain amount of air is exhausted), the pulling spring of the exhaust valve contracts, the exhaust valve is reset upwards to be sealed again, and the fact that air is not contained in the protective cover 21 when the door is opened next time is guaranteed.
Compared with the prior art, the car door lock protection device is provided with the gas storage tank, the protection cover and the concentration detector, inert gas is supplemented to the protection cover by the gas storage tank, the concentration detector detects the concentration of oxygen or sulfide in the protection cover in real time, the oxygen or sulfide concentration is fed back to the controller, and the inert gas is controlled to enter the protection cover in time, so that the problem that the switch body and the connecting piece are easy to oxidize or vulcanize when electric sparks are generated due to contact is prevented, and the service life of a car door lock switch is prolonged; the arrangement of the air inlet pressure sensor and the exhaust pressure sensor can further optimize the inert gas supplement process of the protective cover, and can supplement the inert gas supplement process with the concentration detector. The car door lock protection device has the characteristics of simple structure, oxidation resistance, vulcanization resistance, high automation degree, prolonged service life of the door lock and the like.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (4)
1. The utility model provides a sedan-chair door lock protection device which characterized in that: comprises a protective cover, a gas storage tank, a concentration detector and a controller; the gas storage tank is connected with the protective cover through an air inlet valve, the protective cover covers the switch body and the lock seat, one side of the protective cover is provided with an opening through which the lock hook penetrates, the gas storage tank is also provided with an air outlet, the concentration detector is arranged in the protective cover, and the controller is in signal connection with the concentration detector and the air inlet valve;
the protective cover is characterized by further comprising a sealing gasket, wherein the sealing gasket is arranged on the locking hook and is matched with the opening of the protective cover to seal the protective cover;
the exhaust valve is arranged on an exhaust port of the protective cover;
the air inlet pressure sensor and the exhaust pressure sensor are respectively arranged at the outlet of the air inlet valve and the outlet of the exhaust valve, and the air inlet pressure sensor and the exhaust pressure sensor are in signal connection with the controller;
the air inlet valve comprises an air inlet valve body and an air inlet valve motor, the air inlet valve motor is used for driving the air inlet valve body to be opened and closed, and the air inlet valve motor is in signal connection with the controller.
2. The car door lock protection device of claim 1, wherein: the air inlet valve motor is a linear motor.
3. The car door lock protection device of claim 1, wherein: the air inlet valve is an electromagnetic pneumatic valve.
4. The car door lock protection device of claim 1, wherein: the gas storage tank is arranged on the car top or the landing door upper ridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129546.2A CN108609445B (en) | 2016-12-09 | 2016-12-09 | A car door lock protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129546.2A CN108609445B (en) | 2016-12-09 | 2016-12-09 | A car door lock protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108609445A CN108609445A (en) | 2018-10-02 |
| CN108609445B true CN108609445B (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611129546.2A Active CN108609445B (en) | 2016-12-09 | 2016-12-09 | A car door lock protection device |
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| Country | Link |
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| CN (1) | CN108609445B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255343B (en) * | 2019-06-26 | 2025-01-24 | 日立电梯（中国）有限公司 | Elevator floor door lock device and protective cover |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192865A (en) * | 2011-05-25 | 2011-09-21 | 东华大学 | Viscosity test device and method with inert gas protection |
| CN202440214U (en) * | 2012-02-08 | 2012-09-19 | 日立电梯（中国）有限公司 | Waterproof elevator gate lock structure |
| CN203652973U (en) * | 2013-11-29 | 2014-06-18 | 广州日滨科技发展有限公司 | Elevator hall car door lock contact oxidation detecting device |
| JP2015016940A (en) * | 2013-07-09 | 2015-01-29 | 株式会社日立ビルシステム | Rust prevention device for equipment inside elevator hoistway |
| CN104582798A (en) * | 2013-05-06 | 2015-04-29 | 艾摩罗那股份公司 | Inerting method and system for reducing oxygen |
| CN205555113U (en) * | 2016-04-07 | 2016-09-07 | 山东中科洁能科技有限公司 | Buggy storehouse safety arrangement |
| CN106115438A (en) * | 2016-08-22 | 2016-11-16 | 康力电梯股份有限公司 | A kind of water proof type door lock contact |
-
2016
- 2016-12-09 CN CN201611129546.2A patent/CN108609445B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192865A (en) * | 2011-05-25 | 2011-09-21 | 东华大学 | Viscosity test device and method with inert gas protection |
| CN202440214U (en) * | 2012-02-08 | 2012-09-19 | 日立电梯（中国）有限公司 | Waterproof elevator gate lock structure |
| CN104582798A (en) * | 2013-05-06 | 2015-04-29 | 艾摩罗那股份公司 | Inerting method and system for reducing oxygen |
| JP2015016940A (en) * | 2013-07-09 | 2015-01-29 | 株式会社日立ビルシステム | Rust prevention device for equipment inside elevator hoistway |
| CN203652973U (en) * | 2013-11-29 | 2014-06-18 | 广州日滨科技发展有限公司 | Elevator hall car door lock contact oxidation detecting device |
| CN205555113U (en) * | 2016-04-07 | 2016-09-07 | 山东中科洁能科技有限公司 | Buggy storehouse safety arrangement |
| CN106115438A (en) * | 2016-08-22 | 2016-11-16 | 康力电梯股份有限公司 | A kind of water proof type door lock contact |
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| Publication number | Publication date |
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| CN108609445A (en) | 2018-10-02 |
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