CN205739870U - A kind of safety device preventing accidental movement of elevator cage - Google Patents
A kind of safety device preventing accidental movement of elevator cage Download PDFInfo
- Publication number
- CN205739870U CN205739870U CN201620413708.4U CN201620413708U CN205739870U CN 205739870 U CN205739870 U CN 205739870U CN 201620413708 U CN201620413708 U CN 201620413708U CN 205739870 U CN205739870 U CN 205739870U
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- accidental movement
- car
- safety device
- guide rail
- elevator
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Abstract
The utility model discloses a kind of safety device preventing accidental movement of elevator cage, including: the drive mechanism triggered by car accidental movement signal, and the drive mechanism that links successively with this drive mechanism and clamping device, described clamping device includes: the support being fixed on car；Rack-mount and act on fixed block and the movable wedge of car guide rail both sides, described movable wedge is connected with drive mechanism；It is arranged on boot activity voussoir on support and pushes against the guiding parts of car guide rail.The safety device preventing accidental movement of elevator cage that this utility model provides, makes elevator accidental movement occurring, and during the slow accidental movement of especially flat bed, elevator can slow down stop, ensures safe operation and the life security of passenger of elevator.
Description
Technical field
This utility model relates to elevator technology field, is specifically related to one and prevents accidental movement of elevator cage
Safety device.
Background technology
At present, the normally used safety device of elevator, the action when hypervelocity phenomenon occurs in elevator
Safety device, but for the main frame brake power when Elevator landing not or main frame traction not
When causing elevator the phenomenon that low speed slowly moves occur enough, existing safety device cannot ring in time
Should, corresponding action will not be produced and make deceleration of elevator stop, there is certain danger.
In the case of Elevator landing and elevator cab door are opened, if there is main frame brake power
Inadequate or elevator main traction is not enough to maintain car to be in the situations such as flat bed state, can cause electricity
Ladder car slowly moves up or down, and in this case, the speed that lift car moves is the lowest,
Not yet reaching to trigger the speed of safety device action, the most existing elevator car safety cannot be special at this
Making the action of stop elevator in the case of Shu, elevator continues the most mobile, if the most just there being passenger
Being between elevator cab door and elevator door, lift car movement up or down is it would be possible to right
Passenger causes shearing injury, can jeopardize the life of passenger time serious.
Utility model content
This utility model provides a kind of safety device preventing accidental movement of elevator cage, makes elevator exist
When there is accidental movement, elevator can slow down stop, ensures safe operation and the life of passenger of elevator
Safety.
A kind of safety device preventing accidental movement of elevator cage, including: by car accidental movement signal
The drive mechanism triggered, and the drive mechanism that links successively with this drive mechanism and clamping device, institute
State clamping device to include: the support being fixed on car；Rack-mount and act on car guide rail
The fixed block of both sides and movable wedge, described movable wedge is connected with drive mechanism；It is arranged on support
Boot activity voussoir pushes against the guiding parts of car guide rail.
In this utility model, car accidental movement signal includes that car takes notice of the various anon-normal under other factor
Often run signal, unexpected factor includes: main frame brake power is not, main frame traction is not enough,
Elevator elements breaks down, elevator occurs power-off etc. when being in non-flat bed.
It is corresponding that the detection of car accidental movement signal can use sensor of the prior art to coordinate
Logic realizes, such as, elevator be in flat bed put in place state time, traction machine does not work, and senses
Device detects that slow upstream or downstream occurs in lift car, then be judged to that elevator occurs that flat bed is unexpected slowly
Mobile.
In elevator normal course of operation, car stops at level position, and car is static at level position
Time, it is understood that there may be teetertottering of car, set the extreme position that teetertotters allowed, if on car
Under rock the extreme position exceeding permission, then it is assumed that car occurs in that unexpected the most mobile, and triggering is driven
Motivation structure proceeds by braking.When car is after stop, when still slowly moving signal occurring, with regard to energy
Enough trigger drive mechanism, and then realized the braking of lift car by clamping device, it is possible to increase car
The safety run.
When accidental movement occurs in lift car, accidental movement signal is utilized to trigger drive mechanism action,
Drive mechanism makes clamping device clamp car guide rail by drive mechanism, makes lift car stop mobile.
After elevator accidental movement signal eliminates, drive mechanism resets, clamping device release car guide rail, electricity
Ladder car enters properly functioning.
When elevator is properly functioning, between clamping device and car guide rail, there is not interaction, the most solid
Determine to have between block and movable wedge and accommodate the gap that car guide rail is freely walked, when clamping device needs
During clamping car guide rail, movable wedge is drawn close to fixed block under the effect of guiding parts, car guide rail
First contacting with movable wedge, the two produces force of sliding friction, and movable wedge continues to move to, until sedan-chair
Railway carriage or compartment guide rail is clamped by fixed block and movable wedge, stops car along the movement of car guide rail.
As preferably, also include cage operation status monitoring mechanism, this cage operation status monitoring mechanism
Car accidental movement signal is sent to drive mechanism.
Whether cage operation status monitoring mechanism there is exception, once for the running status monitoring elevator
There is accidental movement, i.e. send car accidental movement signal to drive mechanism, make safety device start work
Make.
As preferably, described drive mechanism includes:
The transmission swing arm that hinged mechanism the most driven drives；
It is connected to the hauling rope between transmission swing arm and movable wedge.
Described drive mechanism drives transmission swing arm, and transmission swing arm makes movable wedge along guiding by hauling rope
Parts move, and movable wedge, during motion, moves closer to fixed block, namely reduces fixed block
With the gap of movable wedge, car guide rail is clamped by fixed block and movable wedge.
As preferably, described drive mechanism includes:
Solenoid by car accidental movement signal triggering and conducting；
The magnetic movement part driven by solenoid and be connected with described transmission swing arm.
When there is car accidental movement signal, solenoid turns on, and magnetic movement part makes transmission swing arm move
Make, by hauling rope, the action of transmission swing arm is transferred to movable wedge, make movable wedge gradually to
Fixed block is drawn close.
As preferably, described clamping device also includes the resilient bezel being slidably installed on the bracket, institute
State fixed block and guiding parts be separately fixed at resilient bezel in and the both sides of point row car guide rail, described
Support is provided with the limit assembly offseted with fixed block and guiding parts.
When clamping device needs to clamp car guide rail, first movable wedge moves along guiding parts, in fortune
During Dong, movable wedge moves closer to car guide rail, and produces sliding friction with car guide rail,
Car guide rail applies active force to movable wedge, makes resilient bezel drive fixed block near car guide rail, sedan-chair
Railway carriage or compartment guide rail is finally clamped by fixed block and movable wedge.
Resilient bezel, during car guide rail is clamped, deforms upon, it is possible to delay to a certain extent
Braking procedure with car guide rail, it is to avoid car generation jerk.
As preferably, described limit assembly includes the steady pin offseted with fixed block, and and guide part
The spring catch that part offsets.
When, after car accidental movement blackout, spring catch promotes guiding parts to move, until fixed block
Offset with steady pin, under the position-limiting action of steady pin and spring catch, between fixed block and movable wedge
Gap right around car guide rail, and allow car guide rail freely walk in gap.
As preferably, described resilient bezel is U-shaped, and car guide rail described in semi-surrounding.
Described resilient bezel can use U-board spring, U-shaped two relative edge fixes fixed block respectively and leads
To parts.
As preferably, described guiding parts is wedge, has the inclined-plane that boot activity voussoir slides.
When elevator is properly functioning, movable wedge is away from fixed block, when needing elevator brake car, lives
Dynamic voussoir, under the effect of car guide rail, moves along inclined-plane to be gradually close to fixed block.
In order to reduce the frictional force between movable wedge and guiding parts, it is preferable that arrange on described inclined-plane
Cloth is provided with needle roller.
As preferably, described movable wedge is two along the arrangement of car guide rail length direction, two work
Connect between dynamic voussoir and have back-moving spring.
When there is accidental movement signal, two movable wedge, under the effect of hauling rope, are led at car
It is located remotely from each other on rail length direction, under the inclined-plane of guiding parts guides, moves closer to fixed block, meaning
After outer movable signal disappears, under the effect of back-moving spring, two movable wedge are in car guide rail length
Mutually draw close on direction, under the inclined-plane of guiding parts guides, be gradually distance from fixed block, movable wedge
And formed between fixed block and allow the gap that car guide rail is freely walked.
The safety device preventing accidental movement of elevator cage that this utility model provides, makes elevator occur
During accidental movement, especially level position occur slowly accidental movement time, elevator can slow down stop,
Ensure safe operation and the life security of passenger of elevator.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that this utility model prevents the safety device of accidental movement of elevator cage；
Fig. 2 be this utility model prevent accidental movement of elevator cage safety device braking car time show
It is intended to.
In figure: 1, support；2, U-board spring；3, fixing voussoir；4, steady pin；5, spring catch；
6, swing arm；7, movable wedge；8, guiding parts；9, push-pull electromagnet；10, reset bullet
Spring；11, needle roller；12, hauling rope；13, car guide rail；14, rotating shaft；15, rotating shaft.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model prevent the safety device of accidental movement of elevator cage from doing in detail
Thin description.
As shown in Figure 1 and Figure 2, a kind of safety device preventing accidental movement of elevator cage, including: drive
Motivation structure, drive mechanism and clamping device.
Clamping device includes: the support 1 that is fixed on car, the U-board being slidably mounted on support 1
Spring 2, the fixed block 3 being fixed on U-board spring 2 and guiding parts 8 and with guiding parts 8 slide join
The movable wedge 7 closed.
U-board spring 2 semi-surrounding car guide rail 13, fixed block 3 and guiding parts 8 are utilized respectively bolt and fix
On two limits being oppositely arranged of U-board spring 2, fixed block 3 and guiding parts 8 are all located at U-board spring
The inner space of 2.
Fixed block 3 and movable wedge 7 lay respectively at the both sides of car guide rail 13, and fixed block 3 is led with car
The gap of rail 13 is 2.5mm, and the gap between movable wedge 7 and car guide rail 13 is 3.5mm.
When car is braked, the face that fixed block contacts with car guide rail is plane, in the present embodiment,
Fixed block is cuboid.
Movable wedge 7 is two along the arrangement of car guide rail 13 length direction, at the inclined-plane of movable wedge 7
In deviating from the side of car guide rail 13, connect between two movable wedge 7 and have back-moving spring 10.At sedan-chair
During the braking of railway carriage or compartment, two movable wedge 7 are located remotely from each other, and back-moving spring 10 is stretched, and car recovers normal
During operation, under the effect of back-moving spring 10, two movable wedge 7 are mutually drawn close.
Guiding parts 8 is wedge, and wedge has the inclined-plane that boot activity voussoir 7 slides, inclined-plane court
Arranging to car guide rail 13, inclined-plane is two, each inclined-plane correspond to a movable wedge 7, two
Inclined-plane is arranged symmetrically with along the cross section of guide rail, and the angle between two inclined-planes is 150 °～160 °.
Being placed with needle roller 11 on the inclined-plane of guiding parts 8, movable wedge 7 directly contacts with needle roller 11, profit
With needle roller 11, the sliding friction between movable skewback and guiding parts 8 is converted into rolling friction, to subtract
Frictional resistance when little movable wedge 7 moves.
As shown in Figure 1 and Figure 2, support 1 is fixed with limit assembly, respectively offsets with fixed block 3
Steady pin 4, and the spring catch 5 offseted with guiding parts 8, steady pin 4 and spring catch 5 office are in U
Outside the two of shape leaf spring 2, when car is properly functioning, steady pin 4 offsets with fixed block 3, spring catch 5
Offseting with guiding parts 8, when car is braked, there is position relative to car guide rail 13 in U-board spring 2
Mobile, fixed block 3 no longer offsets with steady pin 4, and spring catch 5 is directed to parts 8 and compresses simultaneously.
As shown in Figure 1 and Figure 2, drive mechanism includes: the transmission swing arm being hinged on support 1, and
The hauling rope 12 (steel wire rope can be used) being connected between transmission swing arm and movable wedge 7.Transmission swing arm
Being made up of two swing arms 6, hauling rope 12 is two, and a rotating shaft 14 is passed through in one end of two swing arms 6
Being hinged, the other end is connected with movable wedge 7 by corresponding hauling rope 12.
Offer on support 1 along being perpendicular to the stopper slot that car guide rail 13 length direction extends, rotating shaft 14
It is in stopper slot, and is slidably matched with stopper slot.Every swing arm 6 is opened near one end of rotating shaft 14
Being provided with bar hole, support 1 is fixed with the rotating shaft 15 being located in corresponding bar hole, swing arm 6 is to turn
Axle 15 swings for fulcrum.
Support 1 is provided with the through wires hole for connecting hauling rope 12, hauling rope 12 extend through wires hole with
Be connected one section of movable wedge 7 is arranged in parallel with car guide rail 13.
As shown in Figure 1 and Figure 2, drive mechanism is push-pull electromagnet 9, the electricity in push-pull electromagnet 9
Magnetic coil is turned on by relay, and the conducting of relay is controlled by accidental movement signal, push-pull electromagnet
The magnetic movement part driven by solenoid in 9 is connected with the rotating shaft in transmission swing arm, promotes rotating shaft
Move along stopper slot, it is achieved the braking of lift car.
The angle of inclination conversion on the inclined-plane of guiding parts 8 is the hauling rope 12 movement in the case of brakeless
Distance is 25mm, i.e. when drive mechanism starts action, it is allowed to lift car at least 25mm is upwards
Or downward displacement, in 25mm displacement, movable wedge 7 and car guide rail 13 will not be sent out
Raw contact.
When Elevator Monitoring mechanism monitors the unexpected power-off of elevator, and lift car is not located at level position
Time, or lift car is due to unexpected factor, when the slow upstream or downstream of car occur, and Elevator Monitoring
A signal of telecommunication all will feed back to relay in mechanism, so that safety device starts action.Described accident
Factor includes: because of electrical equipment fault occur out of control, because of main frame brake power not, because of elevator
Main frame traction is not enough to maintain car to be in flat bed resting state etc..
When Elevator Monitoring mechanism one signal of telecommunication of feedback is to relay, after relay adhesive, plug-type electricity
Magnet 9 obtains electric, promotes transmission swing arm motion, and hauling rope 12 drives two movable wedge 7 to be located remotely from each other,
Two movable wedge 7 away from during, under the guiding function of guiding parts 8, move closer to sedan-chair
Railway carriage or compartment guide rail 13, and produce sliding friction with car guide rail 13, between movable wedge 7 and car guide rail 13
Producing extruding braking effect, car guide rail 13 applies counteracting force to movable wedge 7, promotes U-board spring
2 to the right direction move, produce sliding friction between fixed block 3 and car guide rail 13, fixed block 3 with
After movable wedge 7 clamps car guide rail 13, car stop motion, the safety device after car braking
State is as shown in Figure 2.
After elevator recovers normally, push-pull electromagnet 9 dead electricity, transmission swing arm resets, at back-moving spring
Under the effect of 10, movable wedge 7 is close to each other to restPosing, and spring catch 5 promotes U-board spring 2
Direction is moved to the left, and after steady pin 4 and fixed block 3 offset, U-board spring 2 completes to reset, and car is extensive
Time the most properly functioning, the state of safety device is as shown in Figure 1.
Claims (10)
1. the safety device preventing accidental movement of elevator cage, it is characterised in that including: be subject to
The drive mechanism that car accidental movement signal triggers, and the driver linked successively with this drive mechanism
Structure and clamping device, described clamping device includes:
The support being fixed on car；
Rack-mount and act on fixed block and the movable wedge of car guide rail both sides, described activity
Voussoir is connected with drive mechanism；
It is arranged on boot activity voussoir on support and pushes against the guiding parts of car guide rail.
Preventing the safety device of accidental movement of elevator cage the most as claimed in claim 1, its feature exists
In, also including cage operation status monitoring mechanism, this cage operation status monitoring mechanism is to drive mechanism
Send car accidental movement signal.
Preventing the safety device of accidental movement of elevator cage the most as claimed in claim 1, its feature exists
In, described drive mechanism includes:
The transmission swing arm that hinged mechanism the most driven drives；
It is connected to the hauling rope between transmission swing arm and movable wedge.
Preventing the safety device of accidental movement of elevator cage the most as claimed in claim 3, its feature exists
In, described drive mechanism includes:
Solenoid by car accidental movement signal triggering and conducting；
The magnetic movement part driven by solenoid and be connected with described transmission swing arm.
5. the safety device preventing accidental movement of elevator cage as described in Claims 1 to 4 is arbitrary, its
Being characterised by, described clamping device also includes the resilient bezel being slidably installed on the bracket, described solid
Determine block and guiding parts be separately fixed at resilient bezel in and the both sides of point row car guide rail, described support
It is provided with the limit assembly offseted with fixed block and guiding parts.
Preventing the safety device of accidental movement of elevator cage the most as claimed in claim 5, its feature exists
In, described limit assembly includes the steady pin offseted with fixed block, and the bullet offseted with guiding parts
Spring pin.
Preventing the safety device of accidental movement of elevator cage the most as claimed in claim 5, its feature exists
In, described resilient bezel is U-shaped, and car guide rail described in semi-surrounding.
8. the safety device preventing accidental movement of elevator cage as described in Claims 1 to 4 is arbitrary, its
Being characterised by, described guiding parts is wedge, has the inclined-plane that boot activity voussoir slides.
Preventing the safety device of accidental movement of elevator cage the most as claimed in claim 8, its feature exists
In, on described inclined-plane, arrangement is provided with needle roller.
10. the safety device preventing accidental movement of elevator cage as described in Claims 1 to 4 is arbitrary,
It is characterized in that, described movable wedge is two along the arrangement of car guide rail length direction, two activities
Connect between voussoir and have back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413708.4U CN205739870U (en) | 2016-05-09 | 2016-05-09 | A kind of safety device preventing accidental movement of elevator cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413708.4U CN205739870U (en) | 2016-05-09 | 2016-05-09 | A kind of safety device preventing accidental movement of elevator cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205739870U true CN205739870U (en) | 2016-11-30 |
Family
ID=57370607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620413708.4U Active CN205739870U (en) | 2016-05-09 | 2016-05-09 | A kind of safety device preventing accidental movement of elevator cage |
Country Status (1)
| Country | Link |
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| CN (1) | CN205739870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858398A (en) * | 2016-05-09 | 2016-08-17 | 浙江西子富沃德电机有限公司 | Safety device for preventing elevator car from accidentally moving |
| US11434104B2 (en) | 2017-12-08 | 2022-09-06 | Otis Elevator Company | Continuous monitoring of rail and ride quality of elevator system |
-
2016
- 2016-05-09 CN CN201620413708.4U patent/CN205739870U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858398A (en) * | 2016-05-09 | 2016-08-17 | 浙江西子富沃德电机有限公司 | Safety device for preventing elevator car from accidentally moving |
| CN105858398B (en) * | 2016-05-09 | 2018-06-26 | 浙江西子富沃德电机有限公司 | A kind of safety device for preventing accidental movement of elevator cage |
| US11434104B2 (en) | 2017-12-08 | 2022-09-06 | Otis Elevator Company | Continuous monitoring of rail and ride quality of elevator system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |