CN108609445A - A kind of car door lock protective device - Google Patents
A kind of car door lock protective device Download PDFInfo
- Publication number
- CN108609445A CN108609445A CN201611129546.2A CN201611129546A CN108609445A CN 108609445 A CN108609445 A CN 108609445A CN 201611129546 A CN201611129546 A CN 201611129546A CN 108609445 A CN108609445 A CN 108609445A
- Authority
- CN
- China
- Prior art keywords
- protective cover
- door lock
- car door
- protective device
- intake valve
- 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.)
- Granted
Links
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
The present invention relates to a kind of car door lock protective devices.The car door lock protective device of the present invention, including protective cover, air accumulator, concentration detector and controller；The air accumulator is connect through an intake valve with the protective cover; the protective cover is located in switch body and lock; the side of the protective cover is provided with the opening passed through for latch hook; it is additionally provided with exhaust outlet on the air accumulator; the concentration detector is arranged in the protective cover, and the controller is connect with the concentration detector and air inlet valve signal.The car door lock protective device of the present invention has the advantages that simple in structure, anti-oxidation, anti-vulcanization, high degree of automation, extends door lock service life.
Description
Technical field
The present invention relates to elevator technology fields, more particularly to a kind of car door lock protective device.
Background technology
Car door lock is a necessary parts of elevator.Existing asynchronous door car door lock be one section of a horizontal movement away from
From rear lift hook, i.e., in a distance before lifting hook, gate lock-switch still needs to be closed so that the feeler lever of gate lock-switch is being powered
The part sheet metal that is connected with switch under state can rub a distance.
When connector sheet metal leaves switch body contact easily formed draw electric arc, hoistway environment lower switch be just easy to by
Oxidation or vulcanization.Due to drawing electric arc to form electric spark, fever friction acceleration switch connector sheet metal and the abrasion for switching feeler lever,
When the pit that effective working portion of feeler lever is worn away or connector sheet metal is worn into is increasing, gate lock-switch is just because at certain
Any touches insulated part and steals and stop, and safety return circuit cut-out is caused to make elevator emergency stop.
It draws electric arc oxidizable or vulcanization however, the prior art can't solve car door lock generation, causes car door lock
Short, the vulnerable technical problem of service life.
Invention content
Based on this, the object of the present invention is to provide a kind of car door lock protective devices, with simple in structure, oxygen
Change, high degree of automation, extends the advantages of door lock service life at anti-vulcanization.
A kind of car door lock protective device, including protective cover, air accumulator, concentration detector and controller；The air accumulator
It is connect with the protective cover through an intake valve, the protective cover is located in switch body and lock, and the side of the protective cover is set
It is equipped with the opening passed through for latch hook, exhaust outlet is additionally provided on the air accumulator, the concentration detector is arranged in the protection
In cover, the controller is connect with the concentration detector and air inlet valve signal.
The present invention car door lock protective device by be arranged air accumulator, protective cover, concentration detector, using air accumulator to
Topping up in protective cover, concentration detector detect the concentration of oxygen or sulfide in protective cover, feed back to control in real time
Device processed and in time control inert gas enter in protective cover, with prevent switch body and connector contact generate electric spark easily occur
The problem of oxidation or vulcanization, extend the service life of car door lock switch.
Further, further include gasket, the gasket is arranged on latch hook, the gasket and the protective cover
Opening cooperation is to seal protective cover.
Further, further include air bleeding valve, the air bleeding valve is arranged on the exhaust outlet of the protective cover.Utilize air bleeding valve
Inert gas is controlled by the air or sulfide extrusion in protective cover.
Further, further include air inlet pressure sensor and back pressure transducer, the air inlet pressure sensor and row
Air pressure force snesor is separately positioned on the air inlet valve outlet and exhaust valve outlet, the air inlet pressure sensor and pressure at expulsion
Sensor is connected with the controller in a signal way..Air inlet pressure is detected respectively by air inlet pressure sensor and back pressure transducer
Power and pressure at expulsion, and then pressure difference between the two is calculated, when the pressure difference of the two become greater to certain value greatly, controller control
Inlet open, and the topping up into protective cover；In addition, the combination of air inlet pressure sensor and back pressure transducer
Dual-loop feedback control can be formed with concentration sensor, can complement each other and make up, so that the inert gas in protective cover is kept
Stable concentration and pressure.
Further, the intake valve includes air inlet valve body and intake valve motor, and the intake valve motor is for driving institute
The opening and closing of air inlet valve body are stated, the intake valve motor is connected with the controller in a signal way..Intake valve motor drives intake valve
Body opens and closes, to which the inert gas controlled in air accumulator enters in protective cover.
Further, the intake valve motor is linear motor.
Further, the intake valve is electromagnetic type pneumatic operated valve.
Further, the air accumulator is set on car top or layer door on bank.
Compared with the existing technology, car door lock protective device of the invention is by being arranged air accumulator, protective cover, Concentration Testing
Device, using air accumulator, into protective cover, topping up, concentration detector detect oxygen or sulfide in protective cover in real time
Concentration, feed back to controller and in time control inert gas enter in protective cover, to prevent switch body and connector from contacting
It leads to the problem of electric spark easily to occur to aoxidize or vulcanize, extends the service life of car door lock switch；Air inlet pressure sensor and
The setting of back pressure transducer can advanced optimize the inert gas supplement process in protective cover, can be with Concentration Testing
Device is complementary to one another.The car door lock protective device of the present invention has simple in structure, anti-oxidation, anti-vulcanization, high degree of automation, prolongs
The features such as long door lock service life.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Description of the drawings
Fig. 1 is the structural schematic diagram of the car door lock protective device of the present invention.
Fig. 2 is the structural schematic diagram of latch hook.
Fig. 3 is the structural schematic diagram of another angle of latch hook.
Fig. 4 is the structural schematic diagram of protective cover.
Fig. 5 is the control schematic diagram of the car door lock protective device of the present invention.
Specific implementation mode
Please refer to Fig.1-Fig. 5.First, the retaining mechanism 10 of the car door lock protective device of the installation present invention is introduced, including
Hanging board 11, latch hook 12, lock 13, switch body 14, connector 15 and connect base 16.The hanging board 11 is slided by a guide rail
Dynamic to be arranged on layer door on bank, one end of the latch hook 12 is fixed on the hanging board 11, the lock 13 and switch body 14
It is arranged on layer door on bank and the switch body 14 is located at the side of 12 sliding trace of the latch hook, be arranged on the latch hook 12
It is useful for the connector 15 contacted with the switch body 14, the latch hook 12 is fixed on described by the connect base 16
On hanging board 11.The contact contacted with the connector 15 is provided in the switch body 14.
The car door lock protective device of the present invention includes protective cover 21, air accumulator 22, concentration detector and controller 23.This
The protective cover 21 and air accumulator 22 of embodiment are arranged on layer door above bank, can also air accumulator 22 be set to car top
On.The air accumulator 22 is connect through an intake valve 24 with the protective cover 21, and the protective cover 21 is located at the switch body 14
On lock 13, the side of the protective cover 21 is provided with the opening 211 passed through for the latch hook 12, is gone back on the air accumulator 22
It is provided with exhaust outlet 212, the concentration detector is arranged in the protective cover 21, the controller 23 and the Concentration Testing
Device is connected with 24 signal of intake valve.
The car door lock protective device of the present invention further includes gasket 17, and the gasket 17 is arranged on latch hook 12, institute
It states gasket 17 and the opening of the protective cover 21 coordinates to seal protective cover 21.
The protective cover 21 of the present embodiment is preferably set to hexahedron structure, and there are the opening in left side or right side
211, latch hook 12 can pass through the opening 211, and gasket 17 can make 211 sealing of opening in protective cover 21 at closing time
Form confined space.It generates electric spark when switch body 14 is contacted with connector 15 in order to prevent and aoxidizes, the storage in air accumulator 22
Deposit inert gas, such as nitrogen or argon gas.In setting, preferably the outlet of intake valve 24 towards switch body 14 and can be connected
Fitting 15, in this way, in topping up, newly into inert gas switch body 14 and connector 15 can be surrounded rapidly,
Prevent the two from generating oxidation or vulcanization.
The car door lock protective device of the present embodiment is also provided with air bleeding valve, air inlet pressure sensor and pressure at expulsion sensing
Device.The air bleeding valve is arranged on the exhaust outlet of the protective cover 21.It will be in protective cover 21 using air bleeding valve control inert gas
Air or sulfide squeeze out.The air inlet pressure sensor and back pressure transducer are separately positioned on the intake valve 24 and go out
Mouth and exhaust valve outlet, the air inlet pressure sensor and back pressure transducer are connect with 23 signal of the controller.This
The air bleeding valve of embodiment draws high spring structure, and under pressure, air bleeding valve can open or close.
Admission pressure and pressure at expulsion are detected respectively by air inlet pressure sensor and back pressure transducer, and then by controlling
Device 23 processed calculates pressure difference between the two, and when the pressure difference of the two become greater to certain value greatly, controller 23 controls intake valve 24
It opens, and the topping up into protective cover 21；In addition, the combination of air inlet pressure sensor and back pressure transducer can
Dual-loop feedback control is formed with concentration sensor, can complement each other and make up, so that the inert gas in protective cover 21 keeps steady
Fixed concentration and pressure.The present embodiment uses the double-closed-loop control of electric current and voltage.
The present embodiment preferably intake valve 24 export and be vented valve outlet be respectively arranged a pressure gauge, for show into
Air valve 24 exports and the air pressure of exhaust valve outlet.
The intake valve 24 of the present embodiment includes air inlet valve body and intake valve motor, and the intake valve motor is for driving
The air inlet valve body opens and closes, and the intake valve motor is connect with 23 signal of the controller.Intake valve motor drive into
Air valve body opens and closes, and enters in protective cover 21 to control the inert gas in air accumulator 22.The intake valve motor is
Linear motor.Alternatively, it is also possible to set the intake valve 24 to electromagnetic type pneumatic operated valve.
It should be pointed out that the car door lock protective device of the present invention is also applied for existing layer door lock.
The operation principle of car door lock protective device of the present invention is：
Concentration monitoring device detects the concentration of the inert gas in protective cover 21 in real time, and detection signal is sent to control
Device, controller controls the opening degree of intake valve 24, to control into the amount of inert gas in protective cover 21.
If admission pressure is pA, pressure at expulsion pB, the rated differential head of the two is Δ p.
When first installation, Δ p<pA-pB, p that air inlet pressure sensor and back pressure transducer will detect respectivelyAWith
pBSending controller to, controller controls intake valve 24 and opens, and inert gas continually enters in protective cover 21, until Δ p >=
pA-pB。
In addition, concentration monitoring device in protective cover 21 oxygen or sulfide concentration carry out multimetering gathered data, and
Measurement result everywhere is averaged, when oxygenous or sulfide concentration is higher, the value of Δ p can be turned down, control into
Air valve 24 is opened, the topping up in protective cover 21.
The trigger value of concentration monitoring device is also preset as x, the oxygen or sulfide concentration C measured when protective cover 21>x
When, by the current signal of 4-20mA, and it is input to controller operation after A/D is converted, corrects rated differential head Δ p in real time.
When gate is opened, latch hook 12 is moved horizontally to side, and enabling signal makes controller provide instruction, and intake valve 24 is put
Go out inert gas and be dispersed into protective cover 21, the electric spark that electric arc generates when switch body 14 and connector 15 being made to rub not with sky
Gas contacts, to prevent the 15 too fast oxidation of switch body 14 and connector.
During closing gate, due to suspension parts such as door change gears, wind pressure is formed, original balance in protective cover 21 is beaten
Broken, partial air can enter in protective cover 21.When door is closed to certain position, controller controls intake valve 24 and opens, to
Topping up in protective cover 21.
After gate completely closes, sealing state is in protective cover 21.It is relatively low that concentration detector measures inert gas concentration
When, feedback signal to after controller can in protective cover 21 topping up, with being continuously replenished, pressure in protective cover 21
It increases, so that air bleeding valve is opened under sufficiently large pressure, since atmospheric density is more than inert gas, sky is forced during supplement
Gas sinks, and when the exhaust valve is opened, at the first time throws out air.When air pressure becomes smaller to a certain extent (centainly in protective cover 21
The air of amount has cleared) when, air bleeding valve draws high spring contraction, and air bleeding valve resets upwards to be resealed, and guarantee is opened the door next time
When protective cover 21 in be free of air.
Compared with the existing technology, car door lock protective device of the invention is by being arranged air accumulator, protective cover, Concentration Testing
Device, using air accumulator to protective cover topping up, concentration detector detect in real time protective cover oxygen or sulfide it is dense
Degree feeds back to controller and control inert gas enters protective cover in time, to prevent switch body and connector from generating electricity in contact
The problem of aoxidizing or vulcanizing, easily occurs for spark, extends the service life of car door lock switch；Air inlet pressure sensor and exhaust pressure
The setting of force snesor can advanced optimize the inert gas supplement process of protective cover, can be mutually complementary with concentration detector
It fills.There is the car door lock protective device of the present invention simple in structure, anti-oxidation, anti-vulcanization, high degree of automation, extension door lock to make
The features such as with the service life.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.
Claims (8)
1. a kind of car door lock protective device, it is characterised in that：Including protective cover, air accumulator, concentration detector and controller；Institute
It states air accumulator to connect with the protective cover through an intake valve, the protective cover is located in switch body and lock, the protective cover
Side be provided with the opening passed through for latch hook, be additionally provided with exhaust outlet on the air accumulator, the concentration detector setting exists
In the protective cover, the controller is connect with the concentration detector and air inlet valve signal.
2. car door lock protective device according to claim 1, it is characterised in that：Further include gasket, the gasket
It is arranged on latch hook, the opening of the gasket and the protective cover coordinates to seal protective cover.
3. car door lock protective device according to claim 1, it is characterised in that：Further include air bleeding valve, the air bleeding valve
It is arranged on the exhaust outlet of the protective cover.
4. car door lock protective device according to claim 3, it is characterised in that：Further include air inlet pressure sensor and row
Air pressure force snesor, the air inlet pressure sensor and back pressure transducer are separately positioned on the air inlet valve outlet and exhaust
Valve outlet, the air inlet pressure sensor and back pressure transducer are connected with the controller in a signal way..
5. car door lock protective device according to claim 1, it is characterised in that：The intake valve include air inlet valve body and
Intake valve motor, the intake valve motor for driving the air inlet valve body to open and close, the intake valve motor with it is described
Controller signals connect.
6. car door lock protective device according to claim 5, it is characterised in that：The intake valve motor is straight-line electric
Machine.
7. car door lock protective device according to claim 1, it is characterised in that：The intake valve is that electromagnetic type is pneumatic
Valve.
8. car door lock protective device according to claim 1, it is characterised in that：The air accumulator is set to car top or layer
On door on bank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129546.2A CN108609445B (en) | 2016-12-09 | 2016-12-09 | 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 | Car door lock protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108609445A true CN108609445A (en) | 2018-10-02 |
| CN108609445B CN108609445B (en) | 2020-05-12 |
Family
ID=63643978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611129546.2A Active CN108609445B (en) | 2016-12-09 | 2016-12-09 | Car door lock protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108609445B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255343A (en) * | 2019-06-26 | 2019-09-20 | 日立电梯（中国）有限公司 | Elevator hall door lock device and shield |
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|---|---|---|---|---|
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255343A (en) * | 2019-06-26 | 2019-09-20 | 日立电梯（中国）有限公司 | Elevator hall door lock device and shield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108609445B (en) | 2020-05-12 |
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