CN108946377A - A kind of novel elevator safety tongs - Google Patents
A kind of novel elevator safety tongs Download PDFInfo
- Publication number
- CN108946377A CN108946377A CN201811049137.0A CN201811049137A CN108946377A CN 108946377 A CN108946377 A CN 108946377A CN 201811049137 A CN201811049137 A CN 201811049137A CN 108946377 A CN108946377 A CN 108946377A
- Authority
- CN
- China
- Prior art keywords
- connector
- voussoir
- brake unit
- fixed frame
- plate
- 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.)
- Pending
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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
- B66B5/22—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of novel elevator safety tongs, including bottom plate, fixed plate is installed at the side top position of the bottom plate, the top of the fixed plate is fixedly installed with top plate, and the side of fixed plate offers guide-track groove, it is fixedly installed with the first fixed frame on front side of the fixed plate, and the front side of fixed plate is located at a side position of the first fixed frame and is equipped with the second fixed frame.Structure of the invention is scientific and reasonable, it is easy to operate, it can be when elevator rapidly drops because of failure by the first brake unit of setting and the second brake unit, it can make the first brake unit and the second brake unit gripping elevator guide rails under shift mechanism effect, realize elevator brake, guarantee passenger safety, when voussoir moves up, the first connector, the second connector is driven to move up, when the first connector and the second connector are in the straight angle, hydraulic cylinder acts so that compact heap compression cage guide, increases the braking ability of safety tongs, improve its safety.
Description
Technical field
The present invention relates to safety tongs field, specifically a kind of novel elevator safety tongs.
Background technique
Safety tongs is the safety guard of elevator, and elevator safety clamp device is under the manipulation of limiter of speed, when elevator speed
Degree is more than the limitation speed of elevator governor setting, or in the case where fracture and relaxation occur for suspension strop, carriage is promptly made
Stop and be clamped in a kind of safety device on guide rail, it provides effective protective effect to the safe operation of elevator, generally by it
It is mounted on car frame or counterweight frame, safety tongs is divided into one-way safety pincers and bidirectional safety tongs.
Through retrieving, Chinese patent discloses a kind of elevator instantaneous safety pliers (Authorization Notice No. CN205709304U), should
Patented technology is additionally arranged guide groove and guide pin, and making voussoir in the process of moving up and down has good guiding performance, still, existing
Safety tongs in technology only passes through voussoir and brakes to cage guide, and safety is poor, and existing safety tongs voussoir and guiding
Block is slidably connected by ball, is easily broken down in use process, and service life is lower.Therefore, those skilled in the art provide
A kind of novel elevator safety tongs, to solve the problems mentioned in the above background technology.
Summary of the invention
The purpose of the present invention is to provide a kind of novel elevator safety tongs, to solve safety mentioned above in the background art
Pincers only brake cage guide by voussoir, and safety is poor, and existing safety tongs voussoir and guide pad are sliding by ball
It is dynamic to connect, it easily breaks down in use process, the lower problem of service life.
To achieve the above object, the invention provides the following technical scheme:
A kind of novel elevator safety tongs, including bottom plate are equipped with fixed plate, the fixation at the side top position of the bottom plate
The top of plate is fixedly installed with top plate, and the side of fixed plate offers guide-track groove, is fixedly installed on front side of the fixed plate
First fixed frame, and the front side of fixed plate is located at a side position of the first fixed frame and is equipped with the second fixed frame, described first
Fixed frame is internally provided with the first brake unit, and the installed in front of the first fixed frame has the first plate washer, and described second is fixed
Frame is internally provided with the second brake unit, and the installed in front of the second fixed frame has the second plate washer, before first plate washer
Oblique the first outer pilot hole from top to bottom is offered at upper side position, is opened up at the front side top position of second plate washer
There is oblique the second outer pilot hole from top to bottom.
As a further solution of the present invention: first brake unit is consistent with the second brake unit structure, and first
Brake unit and the second brake unit are symmetrical, and first brake unit and the first fixed frame are fixedly mounted, and described second
Brake unit and the second fixed frame are fixedly mounted.
As further scheme of the invention: first brake unit includes pull rod, rack gear, voussoir, fixed link, company
Bar, gear, guide pad, resilient key, the first connector, the second connector, compact heap and hydraulic cylinder, the middle part lower section of the pull rod
Rack gear is provided at position, and the bottom end of pull rod is connected with voussoir, the side of the voussoir is equipped with guide pad, and the bottom of voussoir
End is connected with the first connector, and resilient key is provided on front side of the voussoir, fixed link, institute are equipped at the top of the guide pad
It states and is fixedly installed with connecting rod on front side of fixed link, one end of the connecting rod is provided with gear, the bottom end peace of first connector
Equipped with the second connector, the bottom end of second connector is fixedly installed with compact heap, and the side of the compact heap is provided with liquid
Cylinder pressure.
As further scheme of the invention: the voussoir and guide pad are sequentially connected by rack and pinion, described
Guide pad is trapezium structure wide at the top and narrow at the bottom, and the voussoir is up-narrow and down-wide trapezium structure.
As further scheme of the invention: the junction of the voussoir and the first connector is provided with shaft, and wedge
Block and the first connector are rotatablely connected by shaft, and first connector and the second connector are rotatablely connected by shaft, institute
It states the second connector and compact heap to be rotatablely connected by shaft, the voussoir is connect with compact heap by the first connector and second
Part is fixedly connected.
As further scheme of the invention: the junction of the compact heap and hydraulic cylinder is provided with piston rod, and presses
Tight block is fixedly connected with hydraulic cylinder by piston rod.
As the present invention further scheme: the resilient key is plugged in inside the first pilot hole, and resilient key with
Voussoir moves up and down the synchronizing moving above and below the first pilot hole.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention can be when elevator rapidly drops because of failure by the first brake unit and the second brake unit of setting, energy
It is enough to make the first brake unit and the second brake unit gripping elevator guide rails under shift mechanism effect, it realizes elevator brake, protects
Demonstrate,prove passenger safety.
2, the rack and pinion that the present invention is arranged can reduce the friction dynamics generated when guide pad moves up and down with voussoir,
Extend the service life of voussoir, while conventional security pincers voussoir and guide pad being overcome to lack by the way that ball sliding service life is lower
It falls into, further decreases production cost.
3, the present invention passes through the first connector and the second connector of setting, so that voussoir drive when moving up and down
First connector and the second connector move up and down, and realize the connection of voussoir and compact heap, can be mentioned by the compact heap of setting
The tightness of high safety pincers, realizes the dual clamping work of guide rail, improves the safety in utilization of elevator.
4, in the design when voussoir moves up, the first connector is driven to move up, and then the second connector is driven to move up, when the
When a connection piece and the second connector are in the straight angle, hydraulic cylinder is acted so that piston rod stretches out, and drive compact heap movement makes its compression
Cage guide increases the braking ability of safety tongs, improves its safety.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of internal structure of novel elevator safety tongs；
Fig. 2 is a kind of structural schematic diagram of novel elevator safety tongs；
Fig. 3 is a kind of structural schematic diagram of the first brake unit in novel elevator safety tongs.
In figure: 1, bottom plate；2, fixed plate；3, top plate；4, guide-track groove；5, the first fixed frame；6, the second fixed frame；7, first
Brake unit；8, the second brake unit；9, the first plate washer；10, the second plate washer；11, the first pilot hole；12, the second pilot hole；
13, pull rod；14, rack gear；15, voussoir；16, fixed link；17, connecting rod；18, gear；19, guide pad；20, resilient key；21, first
Connector；22, the second connector；23, compact heap；24, hydraulic cylinder.
Specific embodiment
Please refer to Fig. 1~3, in the embodiment of the present invention, a kind of novel elevator safety tongs, including bottom plate 1, the side of bottom plate 1
Fixed plate 2 is installed, the top of fixed plate 2 is fixedly installed with top plate 3, and the side of fixed plate 2 offers and leads at top position
Track slot 4, the front side of fixed plate 2 is fixedly installed with the first fixed frame 5, and the front side of fixed plate 2 is located at the side of the first fixed frame 5
Second fixed frame 6 is installed at position, the first fixed frame 5 is internally provided with the first brake unit 7, and the first fixed frame 5
Installed in front has the first plate washer 9, and the second fixed frame 6 is internally provided with the second brake unit 8, and the front side of the second fixed frame 6
Second plate washer 10 is installed, the first brake unit 7 is consistent with 8 structure of the second brake unit, and the first brake unit 7 and the second system
Moving cell 8 is symmetrical, and the first brake unit 7 and the first fixed frame 5 are fixedly mounted, the second brake unit 8 and the second fixed frame 6
It is fixedly mounted, oblique the first outer pilot hole 11 from top to bottom, the second plate washer is offered at the front side top position of the first plate washer 9
Oblique the second outer pilot hole 12 from top to bottom is offered at 10 front side top position, passes through the first brake unit 7 of setting
It can make the first braking list under shift mechanism effect when elevator rapidly drops because of failure with the second brake unit 8
Member 7 and 8 gripping elevator guide rails of the second brake unit realize elevator brake, guarantee passenger safety.
First brake unit 7 includes pull rod 13, rack gear 14, voussoir 15, fixed link 16, connecting rod 17, gear 18, guide pad
19, resilient key 20, the first connector 21, the second connector 22, compact heap 23 and hydraulic cylinder 24, the middle part lower position of pull rod 13
Place is provided with rack gear 14, and the bottom end of pull rod 13 is connected with voussoir 15, and the side of voussoir 15 is equipped with guide pad 19, guide pad 19
Top fixed link 16 is installed, the front side of fixed link 16 is fixedly installed with connecting rod 17, and one end of connecting rod 17 is provided with gear 18,
Voussoir 15 and guide pad 19 are sequentially connected by rack gear 14 and gear 18, and guide pad 19 is trapezium structure wide at the top and narrow at the bottom, voussoir
15 be up-narrow and down-wide trapezium structure, be can reduce when guide pad 19 moves up and down by the rack gear 14 and gear 18 of setting and wedge
The friction dynamics that block 15 generates, extend the service life of voussoir 15, while overcoming conventional security pincers voussoir 15 and guide pad 19 logical
The ball sliding lower defect of service life is crossed, production cost is further decreased.
The bottom end of voussoir 15 is connected with the first connector 21, and the junction of voussoir 15 and the first connector 21, which is provided with, to be turned
Axis, and voussoir 15 and the first connector 21 are rotatablely connected by shaft, the front side of voussoir 15 is provided with resilient key 20, resilient key 20
It is plugged in inside the first pilot hole 11, and resilient key 20 moves up and down shifting synchronous along the first about 11 pilot hole with voussoir 15
Dynamic, the bottom end of the first connector 21 is equipped with the second connector 22, the first connector 21 and the second connector 22 and is turned by shaft
Dynamic connection, the bottom end of the second connector 22 are fixedly installed with compact heap 23, and the second connector 22 is turned with compact heap 23 by shaft
Dynamic connection, voussoir 15 are fixedly connected with compact heap 23 by the first connector 21 and the second connector 22, pass through the first of setting
Connector 21 and the second connector 22, so that voussoir 15 drives the first connector 21 and the second connector when moving up and down
22 move up and down, and realize the connection of voussoir 15 and compact heap 23, can be improved the fastening of safety tongs by the compact heap 23 of setting
Property, it realizes the dual clamping work of guide rail, improves the safety in utilization of elevator.
The side of compact heap 23 is provided with hydraulic cylinder 24, and compact heap 23 and the junction of hydraulic cylinder 24 are provided with piston rod,
And compact heap 23 is fixedly connected with hydraulic cylinder 24 by piston rod, when voussoir 15 moves up, the first connector 21 is driven to move up, into
And drive the second connector 22 to move up, when the first connector 21 and the second connector 22 are in the straight angle, hydraulic cylinder 24 act so that
Piston rod stretches out, and drives compact heap 23 is mobile it is made to compress cage guide, increases the braking ability of safety tongs, improve its safety
Property.
The working principle of the invention is: when elevator drops because of failure to exceed the speed limit, limiter of speed triggers safety tongs movement, is mentioning
Drawing mechanism effect is lower so that 8 gripping elevator guide rails of the first brake unit 7 and the second brake unit, realize elevator brake, guarantee to multiply
When objective safety, the first brake unit 7 and the second brake unit 8 work, pull rod 13 is moved up with dynamic voussoir 15, so that voussoir 15 and electricity
Terraced guide rail is in contact and rubs, and achievees the effect that lift car is braked, and is rotated by rack gear 14 with moving gear 18, by setting
The rack gear 14 and gear 18 set can reduce the friction dynamics generated when guide pad 19 moves up and down with voussoir 15, extend voussoir 15
Service life, while overcome conventional security pincers voussoir 15 and guide pad 19 by ball sliding the lower defect of service life,
Production cost is further decreased, meanwhile, voussoir 15 drives the first connector 21 to move up during moving up, and then drives the second connection
Part 22 moves up, and when the first connector 21 and the second connector 22 are in the straight angle, hydraulic cylinder 24 is acted so that piston rod stretches out, and drives
Compact heap 23 is mobile to make it compress cage guide, realizes the dual clamping work of guide rail, improves the safety in utilization of elevator, increases
The braking ability of safety tongs, after elevator faults release, voussoir 15 is moved down, and compact heap 23 is withdrawn in the movement of hydraulic cylinder 24, to discharge
Cage guide, the design is not only structurally reasonable, but also security performance is higher.
It is above-described, it is merely preferred embodiments of the present invention, but protection scope of the present invention is not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention
And its inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of novel elevator safety tongs, including bottom plate (1), which is characterized in that pacify at the side top position of the bottom plate (1)
Equipped with fixed plate (2), the top of the fixed plate (2) is fixedly installed with top plate (3), and the side of fixed plate (2) offers and leads
Track slot (4) is fixedly installed with the first fixed frame (5) on front side of the fixed plate (2), and the front side of fixed plate (2) is located at first
It is equipped at one side position of fixed frame (5) the second fixed frame (6), first fixed frame (5) is internally provided with the first system
Moving cell (7), and the installed in front of the first fixed frame (5) has the first plate washer (9), the inside setting of second fixed frame (6)
Have the second brake unit (8), and the installed in front of the second fixed frame (6) has the second plate washer (10), before first plate washer (9)
Oblique outer the first pilot hole (11) from top to bottom, the front side top position of second plate washer (10) are offered at upper side position
The place of setting offers oblique outer the second pilot hole (12) from top to bottom.
2. a kind of novel elevator safety tongs according to claim 1, which is characterized in that first brake unit (7) with
Second brake unit (8) structure is consistent, and the first brake unit (7) and the second brake unit (8) are symmetrical, first system
Moving cell (7) and the first fixed frame (5) are fixedly mounted, and second brake unit (8) and the second fixed frame (6) are fixedly mounted.
3. a kind of novel elevator safety tongs according to claim 1, which is characterized in that the first brake unit (7) packet
Include pull rod (13), rack gear (14), voussoir (15), fixed link (16), connecting rod (17), gear (18), guide pad (19), resilient key
(20), the first connector (21), the second connector (22), compact heap (23) and hydraulic cylinder (24), the middle part of the pull rod (13)
Lower position is provided with rack gear (14), and the bottom end of pull rod (13) is connected with voussoir (15), the side peace of the voussoir (15)
Bottom end equipped with guide pad (19), and voussoir (15) is connected with the first connector (21), is provided on front side of the voussoir (15)
Resilient key (20) is equipped with fixed link (16) at the top of the guide pad (19), and the front side of the fixed link (16) is fixedly mounted
Have connecting rod (17), one end of the connecting rod (17) is provided with gear (18), and the bottom end of first connector (21) is equipped with
The bottom end of two connectors (22), second connector (22) is fixedly installed with compact heap (23), and the one of the compact heap (23)
Side is provided with hydraulic cylinder (24).
4. a kind of novel elevator safety tongs according to claim 3, which is characterized in that the voussoir (15) and guide pad
(19) it is sequentially connected by rack gear (14) and gear (18), the guide pad (19) is trapezium structure wide at the top and narrow at the bottom, the wedge
Block (15) is up-narrow and down-wide trapezium structure.
5. a kind of novel elevator safety tongs according to claim 3, which is characterized in that the voussoir (15) connect with first
The junction of part (21) is provided with shaft, and voussoir (15) and the first connector (21) are rotatablely connected by shaft, and described first
Connector (21) and the second connector (22) are rotatablely connected by shaft, and second connector (22) passes through with compact heap (23)
Shaft rotation connection, the voussoir (15) and compact heap (23) connect by the way that the first connector (21) and the second connector (22) are fixed
It connects.
6. a kind of novel elevator safety tongs according to claim 3, which is characterized in that the compact heap (23) and hydraulic cylinder
(24) junction is provided with piston rod, and compact heap (23) is fixedly connected with hydraulic cylinder (24) by piston rod.
7. a kind of novel elevator safety tongs according to claim 3, which is characterized in that the resilient key (20) is plugged in
One pilot hole (11) is internal, and resilient key (20) moving up and down along the first pilot hole (11) synchronous shifting up and down with voussoir (15)
It is dynamic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811049137.0A CN108946377A (en) | 2018-09-10 | 2018-09-10 | A kind of novel elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811049137.0A CN108946377A (en) | 2018-09-10 | 2018-09-10 | A kind of novel elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108946377A true CN108946377A (en) | 2018-12-07 |
Family
ID=64476271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811049137.0A Pending CN108946377A (en) | 2018-09-10 | 2018-09-10 | A kind of novel elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108946377A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761127A (en) * | 2019-02-26 | 2019-05-17 | 大众电梯有限公司 | A kind of progressive safety gear |
| CN109973561A (en) * | 2019-04-04 | 2019-07-05 | 辽宁铁道职业技术学院 | A kind of brake apparatus and its working method of rail truck |
| CN110054090A (en) * | 2019-04-29 | 2019-07-26 | 北京天恒建设集团有限公司 | A kind of power control formula guide rail brake apparatus for lifting means |
| CN112110312A (en) * | 2020-10-22 | 2020-12-22 | 苏州博量电梯科技有限公司 | Electronic safety tongs brake block trigger driving device |
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|---|---|---|---|---|
| US3967703A (en) * | 1973-10-24 | 1976-07-06 | D. Wickham And Company Limited | Emergency brake for rack and pinion hoist |
| WO1998040302A1 (en) * | 1997-03-13 | 1998-09-17 | Otis Elevator Company | Quasi-elliptical cam bidirectional progressive safety |
| CN2426963Y (en) * | 2000-04-29 | 2001-04-18 | 合肥美菱股份有限公司 | Moving device for outwide-pulling drawer for domestic electric refrigerator |
| CN105923498A (en) * | 2016-06-30 | 2016-09-07 | 爱默生电梯有限公司 | Progressive type safety tongs of elevator |
| CN205855676U (en) * | 2016-07-19 | 2017-01-04 | 广东华辉电梯配件有限公司 | A kind of progressive safety gear |
-
2018
- 2018-09-10 CN CN201811049137.0A patent/CN108946377A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967703A (en) * | 1973-10-24 | 1976-07-06 | D. Wickham And Company Limited | Emergency brake for rack and pinion hoist |
| WO1998040302A1 (en) * | 1997-03-13 | 1998-09-17 | Otis Elevator Company | Quasi-elliptical cam bidirectional progressive safety |
| CN2426963Y (en) * | 2000-04-29 | 2001-04-18 | 合肥美菱股份有限公司 | Moving device for outwide-pulling drawer for domestic electric refrigerator |
| CN105923498A (en) * | 2016-06-30 | 2016-09-07 | 爱默生电梯有限公司 | Progressive type safety tongs of elevator |
| CN205855676U (en) * | 2016-07-19 | 2017-01-04 | 广东华辉电梯配件有限公司 | A kind of progressive safety gear |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761127A (en) * | 2019-02-26 | 2019-05-17 | 大众电梯有限公司 | A kind of progressive safety gear |
| CN109973561A (en) * | 2019-04-04 | 2019-07-05 | 辽宁铁道职业技术学院 | A kind of brake apparatus and its working method of rail truck |
| CN110054090A (en) * | 2019-04-29 | 2019-07-26 | 北京天恒建设集团有限公司 | A kind of power control formula guide rail brake apparatus for lifting means |
| CN110054090B (en) * | 2019-04-29 | 2021-03-26 | 北京天恒建设集团有限公司 | Force-controlled guide rail braking device for lifting equipment |
| CN112110312A (en) * | 2020-10-22 | 2020-12-22 | 苏州博量电梯科技有限公司 | Electronic safety tongs brake block trigger driving device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |
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| RJ01 | Rejection of invention patent application after publication |