CN108408532A - A kind of reduction elevator is rushed to summit and the device of crouching bottom accident impact force - Google Patents
A kind of reduction elevator is rushed to summit and the device of crouching bottom accident impact force Download PDFInfo
- Publication number
- CN108408532A CN108408532A CN201810290276.6A CN201810290276A CN108408532A CN 108408532 A CN108408532 A CN 108408532A CN 201810290276 A CN201810290276 A CN 201810290276A CN 108408532 A CN108408532 A CN 108408532A
- Authority
- CN
- China
- Prior art keywords
- block
- guide
- elevator
- guide rail
- summit
- 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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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
- 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
- B66B5/20—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 rotatable eccentrically-mounted members
-
- 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
It rushes to summit the invention discloses a kind of reduction elevator and the device of crouching bottom accident impact force, is related to elevator technology field.The present invention includes guide rail, guide shoe, car, block and driving device.The present invention on the borehole wall of elevator by setting block and driving device, block is slidably mounted on the both sides on the borehole wall of elevator and positioned at elevator rail, driving device is sequentially connected with block, when elevator occurs rushing to summit or when crouching bottom, driving device pushes the movement of block direction guiding rail, the distance between guide rail and block is set to become smaller, because sliding block is equipped with the first guide surface and the second guide surface, the pressure being subject to when guide shoe is passed through between guide rail and block gradually increases, the frictional force that guide shoe is subject to also gradually increases, certain slowing effect is generated to elevator, it so can be smaller and smaller by the speed of multiple block and the rubbing action elevator of guide shoe, when elevator reaches top or bottom, speed is very small, corresponding impact force is also very small, impact force can be reduced to the injury to human body.
Description
Technical field
The invention belongs to elevator technology field, rush to summit more particularly to a kind of reduction elevator and the dress of crouching bottom accident impact force
It sets.
Background technology
With modern economy and townie development, elevator becomes the essential walking-replacing tool of people's daily life,
Influence of the quality of elevator performance to people's life is more and more significant.
Traction elevator is a kind of current the most widely used elevator, and traction elevator is driven by traction machine, is relied on
Frictional force drives car to be run along vertical track between traction sheave and steel wire rope.Elevator safety is the weight of eight big component part of elevator
One of link is wanted, is related to the security of the lives and property of passenger.Elevator is easy to happen in failure quickly to drop and crouching bottom or fast
Speed, which rises, rushes to summit, and the generation that either crouching bottom is still rushed to summit, huge impact force can all cause the people in elevator fatal
Injury.Slow down impact force when elevator accident occurs and ensures that the life security of people in elevator is always that people make great efforts improved side
To.
Invention content
It rushes to summit the purpose of the present invention is to provide a kind of reduction elevator and the device of crouching bottom accident impact force, passes through and gear is set
Block and driving device, block are slidably mounted on the both sides on the borehole wall of elevator and positioned at elevator rail, driving device and block
It is sequentially connected, solves the problems, such as that existing elevator is rushed to summit or impact force is big when the accident of crouching bottom.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
The present invention rushes to summit for a kind of reduction elevator and the device of crouching bottom accident impact force, including guide rail, guide shoe, car, gear
Block and driving device；
The guide rail is vertically arranged on the borehole wall of elevator, and the guide shoe is fixedly mounted on the periphery of the car, and
It is slidably connected with the guide rail；
The borehole wall is equipped with strip groove, and the strip groove is located on the both sides of the guide rail and position leads with described
Rail is vertical；One surface of the block is equipped with sliding block, and the block is slidably connected by the sliding block and the strip groove；Institute
It states block and is equipped with the first guide surface and the second guide surface, first guide surface is along the direction far from the guide rail to updip
Tiltedly, the second guide surface tilted down along far from the direction of first guide rail；
The driving device is mounted on the borehole wall and is sequentially connected with the block, and the driving device is located at the gear
Side of the block far from the guide rail.
Further, the borehole wall is equipped with blind hole, is equipped with bumping post in the blind hole, the bumping post by a spring with
The bottom of the blind hole is fixedly connected, and the opening of the blind hole is equipped with spacing ring, and the bumping post is along far from the blind via bottom
Orient diameter become smaller, the block, which is pressed on the bumping post, makes bumping post be fully located in the blind hole.
Further, further include velocity sensor and electromagnetic relay, the velocity sensor is mounted on the car,
The velocity sensor is connect with the controller in elevator(lift) machine room, and the electromagnetic relay is mounted in the blind hole and is located at institute
The bottom of blind hole is stated, the bumping post is made of ferrous material, and the electromagnetic relay is connect with the controller.
Further, the driving device is eccentric wheel guide-bar mechanism, including eccentric wheel and guide rod, one end of the guide rod
Hinged with the eccentric wheel, the other end of the guide rod connect with the block, the guide rod and the eccentric wheel hingedly in
The heart is parallel with the center of rotation of the eccentric wheel.
Further, the driving device is electric telescopic rod, and the telescopic end of the electric telescopic rod is solid with the block
Fixed connection.
Further, the strip groove is symmetrical arranged in the both sides of the guide rail.
Further, the end face of the upper and lower ends of the guide shoe is equipped with chamfering.
Further, the guide rail is T-type structure.
The invention has the advantages that：
The present invention is slidably mounted on the borehole wall of elevator by setting block and driving device, block on the borehole wall of elevator
Both sides upper and positioned at elevator rail, driving device are sequentially connected with block, when elevator occurs rushing to summit or when crouching bottom, driving device
The movement of block direction guiding rail is pushed, so that the distance between guide rail and block is become smaller, because sliding block is led equipped with the first guide surface and second
To face, the pressure being subject to when guide shoe is passed through between guide rail and block gradually increases, and the frictional force that guide shoe is subject to also gradually increases,
Certain slowing effect is generated to elevator, the speed for so passing through multiple block and the rubbing action elevator of guide shoe can be increasingly
Small, when elevator reaches top or bottom, speed is very small, and corresponding impact force is also very small, in this way, can reduce punching
Power is hit to the injury to human body.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
The position view of guide shoe and block when Fig. 1 is elevator normal operation in the specific embodiment of the invention；
Fig. 2 is the position view of guide shoe and block when elevator is rushed to summit in the specific embodiment of the invention；
Fig. 3 is the enlarged drawing at A in Fig. 2；
Fig. 4 is that the position view of guide shoe and block when crouching bottom occurs in elevator in the specific embodiment of the invention；
Fig. 5 is the enlarged drawing of B in Fig. 4；
Fig. 6 is the structural schematic diagram of block in the present invention；
Fig. 7 is the mounting structure schematic diagram of bumping post and blind hole in the specific embodiment of the invention；
Fig. 8 is the mounting structure schematic diagram of car and guide shoe in the specific embodiment of the invention；
Fig. 9 is the structural schematic diagram of guide shoe in the specific embodiment of the invention；
In attached drawing, parts list represented by the reference numerals are as follows：
1- guide rails, 2- guide shoes, 3- cars, 4- blocks, 5- driving devices, 6- strip grooves, 7- sliding blocks, 411- first are oriented to
Face, the second guide surfaces of 412-, 8- blind holes, 9- bumping posts, 10- springs.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " periphery ", "upper", "lower", " vertical ", " side ", "inner"
Equal indicating positions or position relationship, are merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated
Component or element must have a particular orientation, and with specific azimuth configuration and operation, therefore should not be understood as to the present invention's
Limitation.
It please refers to Fig.1 shown in -9, the present invention rushes to summit for a kind of reduction elevator and the device of crouching bottom accident impact force, including leads
Rail 1, guide shoe 2, car 3, block 4 and driving device 5；
Guide rail 1 is vertically arranged on the borehole wall of elevator, and guide shoe 2 is fixedly mounted on the periphery of car 3, and is slided with guide rail 1
Dynamic connection；
The borehole wall is equipped with strip groove 6, and strip groove 6 is located at vertical with guide rail 1 on the both sides of guide rail 1 and position；Block 4
A surface be equipped with sliding block 7, block 4 is slidably connected by sliding block 7 and strip groove 6；Block 4 is equipped with the first guide surface 411
With the second guide surface 412, the first guide surface 411 tilts upwards along the direction far from guide rail 1, and the second guide surface 412 of institute is along separate
The direction of first guide rail 1 tilts down；
Driving device 5 is mounted on the borehole wall and is sequentially connected with block 4, and driving device 5 is located at one of block 4 far from guide rail 1
Side.
When it is implemented, please referring to Fig. 1, when elevator normally travel, guide shoe 2 is not contacted with the block 4.Please refer to figure
2 and Fig. 3, when elevator failure is rushed to summit, driving device 5 push 4 direction guiding rail 1 of block close to make guide rail 1 and block 4 it
Between distance reduce, the second guide surface of the upper end-face edge Yu block 4 of guide shoe 2 when guide shoe 2 is passed through between guide rail 1 and block 4
412 contacts gradually increase with the pressure that guide shoe 2 is subject to that continues to move of guide shoe 2, and the frictional force that guide shoe 2 is subject to also gradually increases
Greatly, certain slowing effect is generated to elevator, can so be got over by the speed of multiple block 4 and the rubbing action elevator of guide shoe 2
Next smaller, when elevator reaches top, speed is very small, and corresponding impact force is also very small, in this way, can reduce impact
Power is to the injury to human body；Fig. 4 and Fig. 5 are please referred to, when crouching bottom occurs in elevator, driving device 5 pushes 4 direction guiding rail 1 of block to lean on
It is close that the distance between guide rail 1 and block 4 is made to reduce, when guide shoe 2 is passed through between guide rail 1 and block 4 lower edge of guide shoe 2 and
First guide surface 411 of block 4 contacts, and gradually increases with the pressure that guide shoe 2 is subject to that continues to move of guide shoe 2, guide shoe 2 by
Frictional force also gradually increase, generate certain slowing effect to elevator, so make by multiple block 4 and the friction of guide shoe 2
Can be smaller and smaller with the speed of elevator, when elevator reaches bottom, speed is very small, and corresponding impact force is also very small, such as
This, can reduce impact force to the injury to human body.
Please refer to Fig. 7, wherein the borehole wall is equipped with blind hole 8, is equipped with bumping post 9 in blind hole 8, bumping post 9 by a spring 10 with
The bottom of blind hole 8 is fixedly connected, and the opening of blind hole 8 is equipped with spacing ring, and bumping post 9 becomes along the orient diameter far from 8 bottom of blind hole
It is small, so, it is ensured that 9 part of bumping post, which is located in blind hole 8, to be hit by a bullet out from blind hole 8.Block 4, which is pressed on bumping post 9, makes gear
Column 9 is fully located in blind hole 8.When it is implemented, when elevator occurs rushing to summit or when crouching bottom, driving device 5 pushes 4 direction guiding rail of block
1 is close, and when block 4 is removed, bumping post 9 is popped up from blind hole 8 plays the role of limit, in order to better anti-stop block 4 by
It moves when bumping post 9 pops up to the direction far from guide rail 1 when extruding and is bonded just with one side wall of the block 4 far from guide rail 1.
Wherein, further include velocity sensor and electromagnetic relay, velocity sensor is on car 3, velocity sensor
It is connect with the controller in elevator(lift) machine room, electromagnetic relay is mounted on the bottom in blind hole 8 and positioned at blind hole 8, and bumping post 9 is by irony
Material is made, and electromagnetic relay is connect with controller.Specific implementation, driving device 5 are also connect with the controller in elevator(lift) machine room.
The speed that elevator operation is detected by velocity sensor, when elevator speed occurs abnormal, controller controls the driving device 5, drives
Dynamic device 5 pushes the movement of 4 direction guiding rail 1 of block, and when block 4 is moved to preset position, the bumping post 9 in blind hole 8 is lucky
Pop-up gear is moved back in the anti-stop block of one side of the block 4 far from guide rail 14 from blind hole 8.Elevator restores normal through repair
Afterwards, it controls electromagnetic relay by controller bumping post 9 is sucked back into blind hole 8, driving device 5 pulls block 4 to be restored to originally
Position.
Wherein, driving device 5 is eccentric wheel guide-bar mechanism, including eccentric wheel and guide rod, and eccentric wheel rotation is arranged, guide rod
One end and eccentric wheel are hinged, and the other end of guide rod is connect with block 4, guide rod and the hinged center of eccentric wheel and the rotation of eccentric wheel
Center parallel.
Wherein, driving device 5 is electric telescopic rod, and the telescopic end of electric telescopic rod is fixedly connected with block 4.
Wherein, strip groove 6 is symmetrical arranged in the both sides of guide rail 1.In this way, being symmetrical arranged 4 energy of block in the both sides of guide rail 1
It is enough that better braking effect is played to guide shoe 2.
Wherein, the end face of the upper and lower ends of guide shoe 2 is equipped with chamfering.In this way, guide shoe 2 is facilitated to be contacted with block 4.
Wherein, guide rail 1 is T-type structure, in this way, it is even closer so that guide shoe 2 is contacted with guide rail 1, prevents guide shoe 2 from sliding
It falls off from guide rail 1 in the process.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the present invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the present invention
Principle and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (8)
1. a kind of reduction elevator is rushed to summit and the device of crouching bottom accident impact force, which is characterized in that including guide rail (1), guide shoe (2),
Car (3), block (4) and driving device (5)；
The guide rail (1) is vertically arranged on the borehole wall of elevator, and the guide shoe (2) is fixedly mounted on the outer of the car (3)
Week, and be slidably connected with the guide rail (1)；
The borehole wall be equipped with strip groove (6), the strip groove (6) be located on the both sides of the guide rail (1) and position and
The guide rail (1) is vertical；One surface of the block (4) is equipped with sliding block (7), and the block (4) passes through the sliding block (7) and institute
Strip groove (6) is stated to be slidably connected；The block (4) is equipped with the first guide surface (411) and the second guide surface (412), described
First guide surface (411) tilts upwards along far from the direction of the guide rail (1), and the second guide surface of institute (412) is along far from described the
The direction of one guide rail (1) tilts down；
The driving device (5) is mounted on the borehole wall and is sequentially connected with the block (4), and the driving device (5) is located at
Side of the block (4) far from the guide rail (1).
2. a kind of reduction elevator according to claim 1 is rushed to summit and the device of crouching bottom accident impact force, which is characterized in that institute
It states the borehole wall and is equipped with blind hole (8), bumping post (9) is installed in the blind hole (8), the bumping post (9) passes through a spring (10) and institute
The bottom for stating blind hole (8) is fixedly connected, and the opening of the blind hole (8) is equipped with spacing ring (11), and the bumping post (9) is along far from institute
The orient diameter for stating blind hole (8) bottom becomes smaller, and the block (4) is pressed on the bumping post (9) that so that bumping post (9) is fully located at described
In blind hole (8).
3. a kind of reduction elevator according to claim 2 is rushed to summit and the device of crouching bottom accident impact force, which is characterized in that also
Including velocity sensor and electromagnetic relay, the velocity sensor be mounted on the car (3) on, the velocity sensor with
Controller connection in elevator(lift) machine room, the electromagnetic relay are mounted on the bottom in the blind hole (8) and positioned at the blind hole (8)
Portion, the bumping post (9) are made of ferrous material, and the electromagnetic relay is connect with the controller.
4. a kind of reduction elevator according to claim 1 is rushed to summit and the device of crouching bottom accident impact force, which is characterized in that institute
It is eccentric wheel guide-bar mechanism, including eccentric wheel and guide rod to state driving device (5), and one end of the guide rod is cut with scissors with the eccentric wheel
It connects, the other end of the guide rod is connect with the block (4), hinged center and the bias of the guide rod with the eccentric wheel
The center of rotation of wheel is parallel.
5. a kind of reduction elevator according to claim 1 is rushed to summit and the device of crouching bottom accident impact force, which is characterized in that institute
It is electric telescopic rod to state driving device (5), and the telescopic end of the electric telescopic rod is fixedly connected with the block (4).
6. a kind of reduction elevator according to claim 1 is rushed to summit and the device of crouching bottom accident impact force, which is characterized in that institute
Strip groove (6) is stated to be symmetrical arranged in the both sides of the guide rail (1).
7. a kind of reduction elevator according to claim 1 is rushed to summit and the device of crouching bottom accident impact force, which is characterized in that institute
The end face for stating the upper and lower ends of guide shoe (2) is equipped with chamfering.
8. a kind of reduction elevator according to claim 1 is rushed to summit and the device of crouching bottom accident impact force, which is characterized in that institute
It is T-type structure to state guide rail (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810290276.6A CN108408532A (en) | 2018-03-30 | 2018-03-30 | A kind of reduction elevator is rushed to summit and the device of crouching bottom accident impact force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810290276.6A CN108408532A (en) | 2018-03-30 | 2018-03-30 | A kind of reduction elevator is rushed to summit and the device of crouching bottom accident impact force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108408532A true CN108408532A (en) | 2018-08-17 |
Family
ID=63134502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810290276.6A Pending CN108408532A (en) | 2018-03-30 | 2018-03-30 | A kind of reduction elevator is rushed to summit and the device of crouching bottom accident impact force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108408532A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019657A (en) * | 2019-05-31 | 2020-12-01 | 北京小米移动软件有限公司 | Sliding cover device and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012180204A (en) * | 2011-03-02 | 2012-09-20 | Hitachi Ltd | Elevator apparatus |
| CN105712153A (en) * | 2016-03-23 | 2016-06-29 | 安徽瑞格电梯服务股份有限公司 | Car safety protecting device |
| CN205419445U (en) * | 2016-03-23 | 2016-08-03 | 安徽瑞格电梯服务股份有限公司 | Safety elevator |
| CN107777506A (en) * | 2016-08-27 | 2018-03-09 | 董思雨 | A kind of elevator shaft safety protection device |
| CN207108165U (en) * | 2017-09-06 | 2018-03-16 | 浙江蒂尔森电梯有限公司 | A kind of elevator overspeed protecting device |
| CN208166280U (en) * | 2018-03-30 | 2018-11-30 | 迅立达智能装备制造科技有限公司 | A kind of reduction elevator is rushed to summit and the device of crouching bottom accident impact force |
-
2018
- 2018-03-30 CN CN201810290276.6A patent/CN108408532A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012180204A (en) * | 2011-03-02 | 2012-09-20 | Hitachi Ltd | Elevator apparatus |
| CN105712153A (en) * | 2016-03-23 | 2016-06-29 | 安徽瑞格电梯服务股份有限公司 | Car safety protecting device |
| CN205419445U (en) * | 2016-03-23 | 2016-08-03 | 安徽瑞格电梯服务股份有限公司 | Safety elevator |
| CN107777506A (en) * | 2016-08-27 | 2018-03-09 | 董思雨 | A kind of elevator shaft safety protection device |
| CN207108165U (en) * | 2017-09-06 | 2018-03-16 | 浙江蒂尔森电梯有限公司 | A kind of elevator overspeed protecting device |
| CN208166280U (en) * | 2018-03-30 | 2018-11-30 | 迅立达智能装备制造科技有限公司 | A kind of reduction elevator is rushed to summit and the device of crouching bottom accident impact force |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019657A (en) * | 2019-05-31 | 2020-12-01 | 北京小米移动软件有限公司 | Sliding cover device and electronic equipment |
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