CN105858398B - A kind of safety device for preventing accidental movement of elevator cage - Google Patents
A kind of safety device for preventing accidental movement of elevator cage Download PDFInfo
- Publication number
- CN105858398B CN105858398B CN201610302440.1A CN201610302440A CN105858398B CN 105858398 B CN105858398 B CN 105858398B CN 201610302440 A CN201610302440 A CN 201610302440A CN 105858398 B CN105858398 B CN 105858398B
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- China
- Prior art keywords
- car
- accidental movement
- guide rail
- safety device
- elevator
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- 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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Classifications
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- 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
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
Abstract
The invention discloses a kind of safety device for preventing accidental movement of elevator cage, including：Included by the driving mechanism that car accidental movement signal triggers and the transmission mechanism and clamping device that link successively with the driving mechanism, the clamping device：The stent being fixed on car；Fixed block and movable wedge rack-mount and that act on car guide rail both sides, the movable wedge are connected with transmission mechanism；It is arranged on the guiding parts that boot activity voussoir on stent pushes against car guide rail.The safety device provided by the invention for preventing accidental movement of elevator cage, makes elevator when there is the slow accidental movement of accidental movement, especially flat bed, and elevator can slow down stop, ensure the safe operation of elevator and the life security of passenger.
Description
Technical field
The present invention relates to elevator technology fields, and in particular to a kind of safety device for preventing accidental movement of elevator cage.
Background technology
At present, the usually used safety device of elevator is the safety device that acts when hypervelocity phenomenon occurs in elevator, but
For host brake power is not enough when Elevator landing or host traction is insufficient and that elevator is caused low speed occur is slow
During the phenomenon that mobile, existing safety device can not timely respond to, and will not generate corresponding action makes deceleration of elevator stop, exists
Certain danger.
It is not enough or electric if there is host brake power in the case where Elevator landing and elevator cab door are opened
Situations such as terraced host traction is not enough to that car is maintained to be in flat bed state, can cause lift car slowly to move upward or downward
Dynamic, in this case, the speed of lift car movement is very low, the speed of triggering safety device action has not yet been reached, therefore existing
Some elevator car safeties can not make the action of stop elevator in special circumstances herein, and elevator continues slowly movement, if this
When there is passenger to be between elevator cab door and elevator door just, the movement of lift car upward or downward would be possible to multiplying
Visitor causes shearing to injure, and the life of passenger can be jeopardized when serious.
Invention content
The present invention provides a kind of safety devices for preventing accidental movement of elevator cage, and elevator is made accidental movement occurring
When, elevator can slow down stop, ensure the safe operation of elevator and the life security of passenger.
A kind of safety device for preventing accidental movement of elevator cage, including：It is driven by car accidental movement signal triggering
Mechanism and the transmission mechanism and clamping device to link successively with the driving mechanism, the clamping device include：It is fixed on car
On stent；Fixed block and movable wedge rack-mount and that act on car guide rail both sides, the movable wedge is with passing
Motivation structure is connected；It is arranged on the guiding parts that boot activity voussoir on stent pushes against car guide rail.
Car accidental movement signal includes car the various abnormal running signals under unexpected factors in the present invention, unexpected
Factor includes：Host brake power is not enough, host traction is insufficient, elevator elements break down, elevator is in non-flat bed
Shi Fasheng power-off etc..
The detection of car accidental movement signal may be used sensor of the prior art and corresponding logic coordinated to realize,
For example, elevator be in flat bed in place state when, traction machine does not work, and sensor detects that slow uplink occurs in lift car
Or downlink, then it is unexpected slowly mobile to be determined as that flat bed occurs in elevator.
In elevator normal course of operation, car stops in level position, and car is when level position is static, it is understood that there may be
Car teetertotters, and sets the extreme position that teetertotters of permission, if car teetertotters more than the extreme position allowed,
It is unexpected slowly mobile to think that car occurs, triggering driving mechanism proceeds by braking.After car is in stop, still delay
During slow movable signal, it will be able to trigger driving mechanism, and then the braking of lift car is realized by clamping device, can improve
The safety of car operation.
When accidental movement occurs in lift car, acted using accidental movement signal triggering driving mechanism, driving mechanism is led to
Crossing transmission mechanism makes clamping device clamp car guide rail, and lift car is made to stop movement.After elevator accidental movement signal is eliminated,
Driving mechanism resets, and clamping device release car guide rail, lift car enters normal operation.
In elevator normal operation, there is no interactions, i.e. fixed block and activity between clamping device and car guide rail
Have between voussoir and accommodate the gap that car guide rail is freely walked, when clamping device needs to clamp car guide rail, movable wedge
It is drawn close under the action of guiding parts to fixed block, car guide rail contacts first with movable wedge, and the two generates force of sliding friction,
Movable wedge continues to move to, until car guide rail is clamped by fixed block and movable wedge, prevents car moving along car guide rail.
Preferably, further include car monitoring running state mechanism, the car monitoring running state mechanism is to driving mechanism
Send car accidental movement signal.
Whether the operating status that car monitoring running state mechanism is used to monitor elevator is abnormal, once unexpected move occurs
It is dynamic, i.e., car accidental movement signal is sent to driving mechanism, safety device is made to start to work.
Preferably, the transmission mechanism includes：
The transmission swing arm that hinged mechanism driven on the bracket drives；
The hauling rope being connected between transmission swing arm and movable wedge.
The driving mechanism drives transmission swing arm, and transmission swing arm makes movable wedge be moved along guiding parts by hauling rope,
Movable wedge moves closer to fixed block namely reduces the gap of fixed block and movable wedge, car guide rail during movement
It is clamped by fixed block and movable wedge.
Preferably, the driving mechanism includes：
By the electromagnetic coil of car accidental movement signal triggering and conducting；
The magnetic movement part for being driven and being connected with the transmission swing arm by electromagnetic coil.
When there is car accidental movement signal, electromagnetic coil conducting, magnetic movement part makes transmission swinging arm, passes through traction
The action for being driven swing arm is transferred to movable wedge, movable wedge is made gradually to be drawn close to fixed block by rope.
Preferably, the clamping device further includes the resilient bezel being slidably installed on the bracket, the fixed block with
And guiding parts is separately fixed in resilient bezel and divides the both sides of row car guide rail, the stent is equipped with and fixed block and leads
The limit assembly to offset to component.
When clamping device needs to clamp car guide rail, movable wedge moves first along guiding parts, during movement,
Movable wedge moves closer to car guide rail, and generates sliding friction with car guide rail, and car guide rail is acted on to movable wedge application
Power, resilient bezel is made to drive fixed block, and close to car guide rail, car guide rail is finally clamped by fixed block and movable wedge.
Resilient bezel deforms upon during car guide rail is clamped, and can mitigate car guide rail to a certain extent
Braking process, avoid car occur emergency stop.
Preferably, the limit assembly includes the fixed pin to offset with fixed block and the bullet to offset with guiding parts
Spring pin.
After car accidental movement blackout, spring catch pushes guiding parts movement, until fixed block and fixed pin phase
Support, under the position-limiting action of fixed pin and spring catch, the gap between fixed block and movable wedge right around car guide rail, and
Car guide rail is allowed freely to be walked in gap.
Preferably, the resilient bezel is U-shaped, and car guide rail described in semi-surrounding.
U-board spring may be used in the resilient bezel, and fixed block and guiding parts are fixed respectively on two relative edge of U-shaped.
Preferably, the guiding parts is wedge block, there is the inclined-plane that boot activity voussoir slides.
In elevator normal operation, movable wedge is far from fixed block, and when needing elevator brake car, movable wedge is in car
Under the action of guide rail, move gradually to be close to fixed block along inclined-plane.
In order to reduce the frictional force between movable wedge and guiding parts, it is preferable that arrangement is equipped with rolling on the inclined-plane
Needle.
Preferably, the movable wedge is two to arrange along car guide rail length direction, between two movable wedges
It is connected with resetting spring.
When there is accidental movement signal, two movable wedges are under the action of hauling rope, in car guide rail length direction
On be located remotely from each other, under the guiding of the inclined-plane of guiding parts, move closer to fixed block, after accidental movement blackout, resetting bullet
Under the action of spring, two movable wedges are mutually drawn close on car guide rail length direction, under the guiding of the inclined-plane of guiding parts, by
Gradually far from fixed block, formed between movable wedge and fixed block and allow the gap that car guide rail is freely walked.
The safety device provided by the invention for preventing accidental movement of elevator cage, makes elevator when there is accidental movement, especially
When slow accidental movement occurs in its level position, elevator can slow down stop, ensure the safe operation of elevator and the life of passenger
Life safety.
Description of the drawings
Fig. 1 is the schematic diagram for the safety device that the present invention prevents accidental movement of elevator cage；
Schematic diagram when Fig. 2 is the safety device braking car that the present invention prevents accidental movement of elevator cage.
In figure：1st, stent；2nd, U-board spring；3rd, fixed voussoir；4th, fixed pin；5th, spring catch；6th, oscillating rod；7th, movable wedge
Block；8th, guiding parts；9th, push-pull electromagnet；10th, resetting spring；11st, needle roller；12nd, hauling rope；13rd, car guide rail；14th, turn
Axis；15th, shaft.
Specific embodiment
Below in conjunction with the accompanying drawings, the safety device of accidental movement of elevator cage is prevented to be described in detail the present invention.
As shown in Figure 1 and Figure 2, a kind of safety device for preventing accidental movement of elevator cage, including：Driving mechanism, driver
Structure and clamping device.
Clamping device includes：The stent 1 that is fixed on car, is fixed on U at the U-board spring 2 being slidably mounted on stent 1
Fixed block 3 and guiding parts 8 on shape leaf spring 2 and the movable wedge 7 being slidably matched with guiding parts 8.
2 semi-surrounding car guide rail 13 of U-board spring, fixed block 3 and guiding parts 8 are utilized respectively bolt and are fixed on U-board spring 2
Two sides being oppositely arranged on, fixed block 3 and guiding parts 8 are all located at the inner space of U-board spring 2.
Fixed block 3 and movable wedge 7 are located at the both sides of car guide rail 13, the gap of fixed block 3 and car guide rail 13 respectively
For 2.5mm, the gap between movable wedge 7 and car guide rail 13 is 3.5mm.
When car is braked, face that fixed block is in contact with car guide rail is plane, and in the present embodiment, fixed block is rectangular
Body.
Movable wedge 7 is two to arrange along 13 length direction of car guide rail, and the inclined-plane of movable wedge 7 is in away from car
The side of guide rail 13 is connected with resetting spring 10 between two movable wedges 7.When car is braked, two movable wedges 7 are mutual
Separate, resetting spring 10 is stretched, when car restores normal operation, under the action of resetting spring 10, and two 7 phases of movable wedge
Mutually draw close.
Guiding parts 8 is wedge block, and wedge block has the inclined-plane that boot activity voussoir 7 slides, and inclined-plane is towards car guide rail
13 settings, inclined-plane are two, and each inclined-plane corresponds to a movable wedge 7, and two inclined-planes are arranged symmetrically along the cross section of guide rail,
Angle between two inclined-planes is 150 °~160 °.
Needle roller 11 is placed on the inclined-plane of guiding parts 8, movable wedge 7 is in direct contact with needle roller 11, will using needle roller 11
Sliding friction between movable skewback and guiding parts 8 is converted into rolling friction, is hindered with reducing friction when movable wedge 7 moves
Power.
As shown in Figure 1 and Figure 2, limit assembly is fixed on stent 1, the fixed pin 4 that respectively offsets with fixed block 3 and
The spring catch 5 to offset with guiding parts 8, fixed pin 4 and 5 office of spring catch are normally transported in two outsides of U-board spring 2 in car
During row, fixed pin 4 offsets with fixed block 3, and spring catch 5 offsets with guiding parts 8, when car is braked, U-board spring 2 relative to
Position movement occurs for car guide rail 13, and fixed block 3 no longer offsets with fixed pin 4, while spring catch 5 is directed to component 8 and compresses.
As shown in Figure 1 and Figure 2, transmission mechanism includes：The transmission swing arm that is hinged on stent 1 and it is connected to transmission swing arm
Hauling rope 12 (steel wire rope can be used) between movable wedge 7.Transmission swing arm is made of two oscillating rods 6, and hauling rope 12 is
Two, one end of two oscillating rods 6 is hinged by a shaft 14, and the other end passes through corresponding hauling rope 12 and movable wedge
7 are connected.
It is offered on stent 1 along the limiting slot extended perpendicular to 13 length direction of car guide rail, shaft 14 is in limiting slot
It is interior, and be slidably matched with limiting slot.Every oscillating rod 6 offers bar hole close to one end of shaft 14, is fixed with and wears on stent 1
The shaft 15 being located in corresponding bar hole, oscillating rod 6 are swung with shaft 15 for fulcrum.
Stent 1 is equipped with the threading hole for connecting hauling rope 12, and hauling rope 12 extends threading hole and 7 phase of movable wedge
One section of connection is arranged in parallel with car guide rail 13.
As shown in Figure 1 and Figure 2, driving mechanism is push-pull electromagnet 9, and the electromagnetic coil in push-pull electromagnet 9 is by relay
Device is connected, and the conducting of relay is controlled by accidental movement signal, the magnetic movement driven in push-pull electromagnet 9 by electromagnetic coil
Part is connected with the shaft in transmission swing arm, and shaft is pushed to be moved along limiting slot, realizes the braking of lift car.
The angle of inclination conversion on the inclined-plane of guiding parts 8 is that hauling rope 12 is in the displacement distance of brakeless
25mm that is, when driving mechanism starts action, allows the displacement distances of lift car at least 25mm upward or downward, in 25mm
In displacement distance, movable wedge 7 and car guide rail 13 will not be in contact.
When Elevator Monitoring mechanism monitors that elevator powers off suddenly, and when lift car is not located at level position or elevator
Car is due to unexpected factors, when there are the slow upstream or downstream of car, Elevator Monitoring mechanism will all feed back an electric signal to after
Electric appliance, so that safety device starts to act.The unexpected factors include：Because electrical equipment failure occur it is out of control, because of host system
Dynamic device band-type brake power not enough, because of elevator host traction is not enough to maintenance car and is in flat bed stationary state etc..
When an electric signal feeds back to relay in Elevator Monitoring mechanism, after relay is attracted, push-pull electromagnet 9 it is electric,
Transmission swing arm motion is pushed, hauling rope 12 drives two movable wedges 7 to be located remotely from each other, and two movable wedges 7 are in separate process
In, under the guiding function of guiding parts 8, car guide rail 13 is moved closer to, and sliding friction, activity are generated with car guide rail 13
It is generated between voussoir 7 and car guide rail 13 and squeezes braking effect, car guide rail 13 applies reaction force to movable wedge 7, pushes U
Side direction moves shape leaf spring 2 to the right, and sliding friction, fixed block 3 and movable wedge 7 are generated between fixed block 3 and car guide rail 13
Clamp car guide rail 13 after, car stop motion, car braking after safety device state it is as shown in Figure 2.
After elevator restores normal, 9 dead electricity of push-pull electromagnet, transmission swing arm resets, living under the action of resetting spring 10
Dynamic voussoir 7 is close to each other to restPosing, and spring catch 5 pushes U-board spring 2, and side direction moves to the left, and fixed pin 4 is with fixing
After block 3 offsets, U-board spring 2 is completed to reset, and when car restores normal operation, the state of safety device is as shown in Figure 1.
Claims (8)
1. a kind of safety device for preventing accidental movement of elevator cage, which is characterized in that including：It is touched by car accidental movement signal
The driving mechanism of hair and the transmission mechanism and clamping device to link successively with the driving mechanism, the clamping device include：
The stent being fixed on car；
Fixed block and movable wedge rack-mount and that act on car guide rail both sides, the movable wedge and transmission mechanism
It is connected；
It is arranged on the guiding parts that boot activity voussoir on stent pushes against car guide rail；
The transmission mechanism includes：
The transmission swing arm that hinged mechanism driven on the bracket drives；
The hauling rope being connected between transmission swing arm and movable wedge；
The movable wedge is two to arrange along car guide rail length direction, and reset bullet is connected between two movable wedges
Spring；
The transmission swing arm is made of two oscillating rods, and a movable wedge, two oscillating rod tools are connected each by hauling rope
There are one the common hinged ends being articulated on stent；It is offered on stent along the limit extended perpendicular to car guide rail length direction
Position slot, the hinged end are in limiting slot and are slidably matched with limiting slot.
2. the safety device as described in claim 1 for preventing accidental movement of elevator cage, which is characterized in that further include car fortune
Row status monitoring mechanism, the car monitoring running state mechanism send car accidental movement signal to driving mechanism.
3. the safety device as described in claim 1 for preventing accidental movement of elevator cage, which is characterized in that the driving mechanism
Including：
By the electromagnetic coil of car accidental movement signal triggering and conducting；
The magnetic movement part for being driven and being connected with the transmission swing arm by electromagnetic coil.
4. the safety device for preventing accidental movement of elevator cage as described in claims 1 to 3 is any, which is characterized in that described
Clamping device further includes the resilient bezel being slidably installed on the bracket, and the fixed block and guiding parts are separately fixed at bullet
Property frame in and divide the both sides of row car guide rail, the stent is equipped with the limit assembly to offset with fixed block and guiding parts.
5. the safety device as claimed in claim 4 for preventing accidental movement of elevator cage, which is characterized in that the limit assembly
Including the fixed pin to offset with fixed block and the spring catch to offset with guiding parts.
6. the as claimed in claim 4 safety device for preventing accidental movement of elevator cage, which is characterized in that the resilient bezel is
U-shaped, and car guide rail described in semi-surrounding.
7. the safety device for preventing accidental movement of elevator cage as described in claims 1 to 3 is any, which is characterized in that described
Guiding parts is wedge block, has the inclined-plane that boot activity voussoir slides.
8. the safety device as claimed in claim 7 for preventing accidental movement of elevator cage, which is characterized in that arranged on the inclined-plane
Cloth is equipped with needle roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302440.1A CN105858398B (en) | 2016-05-09 | 2016-05-09 | A kind of safety device for preventing accidental movement of elevator cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302440.1A CN105858398B (en) | 2016-05-09 | 2016-05-09 | A kind of safety device for preventing accidental movement of elevator cage |
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| Publication Number | Publication Date |
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| CN105858398A CN105858398A (en) | 2016-08-17 |
| CN105858398B true CN105858398B (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610302440.1A Active CN105858398B (en) | 2016-05-09 | 2016-05-09 | A kind of safety device for preventing accidental movement of elevator cage |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106219351B (en) * | 2016-08-30 | 2018-10-02 | 浙江西子富沃德电机有限公司 | a kind of bidirectional safety tongs |
| CN106241550B (en) * | 2016-09-27 | 2018-05-15 | 黄韩华 | A kind of contact accidental movement of elevator cage protective device |
| CN109516337A (en) * | 2017-09-19 | 2019-03-26 | 上海三菱电梯有限公司 | Brake controller of elevator and elevator |
| EP3677534B1 (en) * | 2019-01-02 | 2021-07-21 | Otis Elevator Company | Elevator safety device actuator |
| BR112022009741A2 (en) | 2019-11-21 | 2022-08-09 | Inventio Ag | EASILY REPOSITIONABLE ELECTRONIC SAFETY BRAKE DEVICE |
| KR20220110212A (en) * | 2019-12-12 | 2022-08-05 | 인벤티오 아게 | Brake device with, for example, wedge-shaped brake elements for braking the traveling body which can be moved in a guided manner along the guide rail in the direction of movement |
| CN115101881B (en) * | 2022-07-29 | 2023-06-09 | 盐城师范学院 | Battery convenient to conceal and install and use method thereof |
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