CN105035905B - The safe forceps system of hydraulic electronic - Google Patents
The safe forceps system of hydraulic electronic Download PDFInfo
- Publication number
- CN105035905B CN105035905B CN201510519307.7A CN201510519307A CN105035905B CN 105035905 B CN105035905 B CN 105035905B CN 201510519307 A CN201510519307 A CN 201510519307A CN 105035905 B CN105035905 B CN 105035905B
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- connecting rod
- oil cylinder
- safety tongs
- fault detection
- 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.)
- Expired - Fee Related
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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
-
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
-
- 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
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
-
- 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
Abstract
The invention discloses a kind of safe forceps system of hydraulic electronic, including safety tongs drag link mechanism, hydraulic station, fault detection mechanism and car, wherein liquid safety tongs drag link mechanism is connected with hydraulic station, hydraulic station is electrically connected with fault detection mechanism, and safety tongs drag link mechanism, hydraulic station and fault detection mechanism are installed on car.The present invention is using fault detection mechanism come the failure to elevator, and such as break rope, hypervelocity are detected that when a failure occurs, fault detection mechanism feeds back to hydraulic station, and then hydraulic pressure stand control safety tongs drag link mechanism stops car in real time.The design simplifies structure without limiter of speed and safety tongs are installed separately, and facilitates installation and repair, and uses HYDRAULIC CONTROL SYSTEM, and stable and reliability is high, and long lifespan greatlys save cost.
Description
Technical field
The present invention relates to elevator accessory field, more particularly, to a kind of safe forceps system of hydraulic elevator.
Background technology
Nowadays elevator can be all installed in many high buildings and communal facility, elevator is manned vertical transportation instrument, it is necessary to will
Safe operation is put in the first place.To ensure elevator safety operation, it will be fully taken into account from links such as design, manufacture, installations
The generation of danger is prevented, and for the various danger that may occur, special safety device is set.
And therefore, people start to install safety tongs device on elevator, elevator safety clamp device is the manipulation in limiter of speed
Under, when limitation speed of the elevator speed more than elevator governor setting, or in the case where fracture and relaxation occur for suspension strop, by
The urgent stop of car is simultaneously clamped in a kind of safety device on guide rail.Its safe operation to elevator provides and is effectively protected work
With.But limiter of speed and safety tongs are to be divided among two place installations in traditional design, general limiter of speed is arranged on the top of elevator
Portion, and safety tongs is arranged on the both sides of car, is connected between the two using mechanisms such as steel wire rope or pull bars, structure is multiple
Miscellaneous, installation and maintenance are inconvenient, and manufacturing cost is high.
The content of the invention
It is an object of the invention to provide one kind is simple in construction, reliability is high, and manufacturing cost is low, and installation, maintenance is convenient
The safe forceps system of hydraulic electronic.
According to an aspect of the invention, there is provided a kind of safe forceps system of hydraulic electronic, including safety tongs drag link mechanism,
Hydraulic station, fault detection mechanism and car, wherein safety tongs drag link mechanism and hydraulic station are connected, hydraulic station and fault detection mechanism
It is electrically connected with, safety tongs drag link mechanism, hydraulic station and fault detection mechanism are installed on car.
The beneficial effects of the invention are as follows：The present invention, come the failure to elevator, is such as broken using fault detection mechanism and restricts, exceeds the speed limit
Detected in real time, when a failure occurs, fault detection mechanism feeds back to hydraulic station, then hydraulic pressure stand control safety tongs pull bar
Mechanism stops car.The design simplifies structure, and facilitate installation and tie up without limiter of speed and safety tongs are installed separately
Repair, and use HYDRAULIC CONTROL SYSTEM, stable and reliability is high, and long lifespan greatlys save cost.
In some embodiments, safety tongs drag link mechanism includes safety tongs, pull bar, connecting rod, connecting rod base, oil cylinder and oil cylinder
Frame, wherein safety tongs, pull bar, connecting rod and oil cylinder are sequentially connected, and connecting rod is arranged on connecting rod base, and oil cylinder is arranged on oil cylinder seat,
Safety tongs, connecting rod base and oil cylinder seat are installed on car.Safety tongs drag link mechanism is tensed or loosened using pull bar controls connecting rod
Safety tongs, makes elevator out of control stop in time, simplifies the control structure of conventional security pincers, more reliable and safety, and reduction
Cost, further, since each part is all arranged on the annex of car, can facilitate the installation and maintenance of mechanism.
In some embodiments, hydraulic station includes hydraulic pump, check valve, accumulator, pressure switch, fuel tank, ball
Magnetic valve and motor, wherein hydraulic pump are connected with motor, and its oil inlet end is connected with fuel tank, oil outlet end, the list of hydraulic pump
Be sequentially connected to valve and accumulator by oil pipe, check valve is connected with pressure switch, check valve, ball magnetic valve and oil cylinder according to
Secondary connection, hydraulic pump is also connected with motor.Hydraulic station controls whether the work of hydraulic pump comes to storage using pressure switch
Energy device, which fills, can and stop, and ensure that accumulator always maintains a normal energy storage state with this, system architecture is simple, safely may be used
Lean on, and the substantial amounts of energy and cost can be saved.
In some embodiments, fault detection mechanism includes diversion sheave, electronics rotational speed governor, pressing plate, pressing plate frame, bullet
Spring, travel switch and ward off rope support, one end of its center platen are connected with pressing plate frame, and the other end is connected with spring, the control of electronics rotating speed
Device and travel switch are electrically connected with ball magnetic valve, and pressing plate and travel switch are installed in the underface of diversion sheave, anti-rope
Wheel, electronics rotational speed governor, pressing plate frame, spring and travel switch are installed on ward off rope support.Fault detection mechanism utilizes electronics
Rotational speed governor monitors the rotating speed of diversion sheave, and the speed of elevator is monitored with this, and judges whether it hypervelocity phenomenon occurs, and goes
Cheng Kaiguan is to set then to stop car to when there is disconnected rope, start safety tongs in time, it is simple in construction but it is reliable effectively.
In some embodiments, connecting rod base includes connecting rod bottom plate and the riser being fixedly connected with connecting rod bottom plate, and riser is set
There is the first groove, the first groove and connecting rod match.Connecting rod base is matched provided with the first groove with connecting rod can allow connecting rod preferably installed in vertical
In plate, and it ensure that the accuracy of transmission.
In some embodiments, oil cylinder includes oil cylinder bottom plate, gray iron, piston and piston rod, wherein cylinder body one end
With the connection of oil cylinder bottom plate, the other end and cylinder cap connection, piston and piston rod are connected, and piston is arranged in cylinder body, and piston rod is provided with
Second groove, the second groove and connecting rod match.Oil cylinder can match the installation for facilitating the second groove provided with the second groove with connecting rod, it is ensured that transmission
Accuracy.
In some embodiments, cylinder rack includes lower plate, column and panel, and its central post one end is fixed with lower plate to be connected
Connect, the other end is fixedly connected with panel, oil cylinder is arranged on panel.The setting of cylinder rack can be easy to the installation of oil cylinder, and can protect
Demonstrate,prove the accuracy of oil cylinder installation site.
In some embodiments, hydraulic station also includes overflow valve, return filter and resets magnetic valve, wherein hydraulic pump
Oil outlet end, overflow valve and return filter be sequentially connected, return filter also with fuel tank connect, reset magnetic valve respectively with liquid
Press pump, return filter and oil cylinder connection.The setting for resetting magnetic valve is that oil cylinder can retract in time for convenience, releases safety tongs
Tension, to be placed under repair to elevator.
In some embodiments, accumulator includes air chamber and fluid chamber, and wherein air chamber is connected with fluid chamber.Energy storage
Device is become hydraulic energy in gas with this by increasing hydraulic oil in fluid chamber come the volume of gas in compressed gas chamber
Can and reach energy storage effect.
In some embodiments, pressure switch includes high-voltage switch gear and low tension switch, its high-voltage switch and low pressure
Switch is electrically connected with motor.The setting of high-voltage switch gear and low tension switch can control the different conditions of motor, so as to control
Hydraulic system processed.
Brief description of the drawings
Fig. 1 is the front view of the structure of the safe forceps system of hydraulic electronic of one embodiment of the present invention.
Fig. 2 is the left view of the structure of the safe forceps system of hydraulic electronic shown in Fig. 1.
Fig. 3 is the partial enlarged drawing of the part A of the safe forceps system of hydraulic electronic shown in Fig. 1.
Fig. 4 is the sectional view of the oil cylinder of safety tongs drag link mechanism shown in Fig. 1.
Fig. 5 is the left view of the oil cylinder of safety tongs drag link mechanism shown in Fig. 4.
Fig. 6 is the structural representation of the connecting rod base of safety tongs drag link mechanism shown in Fig. 1.
Fig. 7 is the left view of the connecting rod base of safety tongs drag link mechanism shown in Fig. 6.
Fig. 8 is the structural representation of the cylinder rack of safety tongs drag link mechanism shown in Fig. 1.
Fig. 9 is the hydraulic schematic of the hydraulic station of the safe forceps system of hydraulic electronic shown in Fig. 1
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
With reference to Fig. 1 and Fig. 2, the safe forceps system of hydraulic electronic, including safety tongs drag link mechanism 1, hydraulic station 2, fault detect
Mechanism 3 and car 4.Safety tongs drag link mechanism 1 and hydraulic station 2 are connected, and hydraulic station 2 and fault detection mechanism 3 are electrically connected with, safety
Pincers drag link mechanism 1, hydraulic station 2 and fault detection mechanism 3 are installed on car 4.
With reference to Fig. 1 and Fig. 3, safety tongs drag link mechanism 1 includes safety tongs 11, pull bar 12, connecting rod 13, connecting rod base 14, oil cylinder
15 and cylinder rack 16.One end connection of safety tongs 11 and pull bar 12, the other end of pull bar 12, connecting rod 13 and oil cylinder 15 with member pin according to
Secondary connection, connecting rod 13 is also arranged on connecting rod base 14 with member pin.Connecting rod base 14 and oil cylinder seat 16 are all arranged on the top of car 4, peace
Full pincers 1 are arranged on the bottom of car 4.In addition, in order to allow work when it is more reliable, safety tongs 1, pull bar 2, connecting rod 3 and connecting rod base 4 are all
Two, it is symmetricly set on the both sides of oil cylinder 5.
With reference to Fig. 4, Fig. 5 and Fig. 8, oil cylinder 15 includes oil cylinder bottom plate 151, cylinder body 152, cylinder cap 153, piston 154 and piston
Bar 155.The one end of cylinder body 152 and oil cylinder bottom plate 151 are connected, and the other end and cylinder cap 153 are connected, and piston 154 and piston rod 155 use spiral shell
Mother is fixedly connected, and piston 154 is arranged in cylinder body 152, and piston rod 155 is provided with the second groove 1551, the second groove 1551 and connecting rod 13
Match.Cylinder rack 16 includes lower plate 161, column 162 and panel 163.The one end of column 162 is fixedly connected with lower plate 161, another
End is fixedly connected with panel 163, and oil cylinder 15 is arranged on panel 163.Oil cylinder bottom plate 151 is arranged under lower plate 161 with bolt, separately
Outer oil cylinder 15 is additionally provided with fuel feed hole and oil outlet to facilitate its work.
With reference to Fig. 6 and Fig. 7, connecting rod base 14 includes connecting rod bottom plate 141 and the riser 142 being fixedly connected with connecting rod bottom plate 141,
Riser 142 is provided with the first groove 1421, and the first groove 1421 and connecting rod 13 match, and connecting rod 13 is put into the first groove 1421 and is pacified
On riser 142, in addition to being additionally provided with hole on convenient connection, riser 142, connecting rod 13 is set to be arranged on member pin by hole
In riser 142.
With reference to Fig. 1 and Fig. 9, the hydraulic pump 21 of hydraulic station 2, check valve 22, accumulator 23, pressure switch 24, fuel tank 25, ball
Formula magnetic valve 26 and motor 27.The oil inlet end and fuel tank 25 of hydraulic pump 21 are connected, oil outlet end, the and of check valve 22 of hydraulic pump 21
Accumulator 23 is sequentially connected by oil pipe, and check valve 22 is connected with pressure switch 24, the check valve 22, ball magnetic valve 26
It is sequentially connected with oil cylinder 15, hydraulic pump 21 is also connected with motor 27.And ball magnetic valve 26 selects the magnetic valve of 2/2-way,
Left position is set to be the check valve for being only capable of allowing the hydraulic oil of accumulator 23 to flow into oil cylinder 15, right position is to be only capable of allowing the hydraulic oil stream of oil cylinder 15
Enter the check valve of accumulator 23.Accumulator 3 includes air chamber 31 and fluid chamber 32.Filled with inert gas, liquid in air chamber 31
The interior energy of chamber 32 accommodates hydraulic oil, and air chamber 31 is connected with fluid chamber 32, i.e., when hydraulic oil is more, and fluid chamber 32 can compressed gas chamber
The volume of 31 volume, i.e. compressed inert.Pressure switch 24 includes high-voltage switch gear 241 and low tension switch 242, and height is pressed off
Pass 241 and low tension switch 242 are electrically connected with motor 27.
Hydraulic station 2 also includes overflow valve 28, return filter 29 and resets magnetic valve 210.Reset the selection of magnetic valve 210 two
Position four-way solenoid valve, its A hydraulic fluid port is connected with the cavity of oil cylinder 15, and B hydraulic fluid ports are connected with the rod chamber of oil cylinder 15, P hydraulic fluid ports and hydraulic pressure
The oil outlet end of pump 21 is connected, and T hydraulic fluid ports are sequentially connected with return filter 29, fuel tank 25, in addition, overflow valve 28 is additionally attached to oil return
Between filter 29 and the oil outlet end of hydraulic pump 21.
With reference to Fig. 1-Fig. 3, fault detection mechanism 3 includes diversion sheave 31, electronics rotational speed governor 32, pressing plate 33, pressing plate frame
34th, spring 35, travel switch 36 and ward off rope support 37.Steel wire rope during elevator lifting, the one of pressing plate 33 are wound with diversion sheave 31
End and pressing plate frame 34 are connected, and the other end and spring 35 are connected, electronics rotational speed governor 32 and travel switch 36 with ball electromagnetism
Valve 26 is electrically connected with, and pressing plate 33 and travel switch 36 are installed in the underface of diversion sheave 31, and electronics rotational speed governor 32 is installed
In the annex of diversion sheave 31, and in the range of being in and detecting rope speed, diversion sheave 31, electronics rotational speed governor 32, pressing plate
Frame 34, spring 35 and travel switch 36 are installed on ward off rope support 37.
The present invention is in use, ball magnetic valve 26 is in right position, and reset magnetic valve 210 is in left position, and oil cylinder 15 does not work,
When the pressure that the pressure switch 24 of hydraulic station 2 is measured in accumulator 23 is less than the pressure value of setting, pressure switch 24
Low tension switch 242 can control motor 27 to start, and drive hydraulic pump 21 to work, and hydraulic oil enters the hydraulic cavities of accumulator 23
In 232, the volume of hydraulic cavities 232 becomes big, therefore the volume-diminished of air chamber 231, and the compressed gas in air chamber 231 is pressed
Contracting, hydraulic energy transfer is that interior energy is stored in accumulator 23, after a period of time, when pressure switch 24 is measured in accumulator 23
When pressure is higher than the pressure value set, now, the high-voltage switch gear 241 of pressure switch 24 can control motor 27 to close, hydraulic pressure
Pump 21 no longer works, and hydraulic oil stops entering back into accumulator 23, accumulator 23 is maintained a constant pressure.
During elevator is in normal operation, the energy in accumulator 23 may be consumed because the time is oversize,
But by the detection of pressure switch 24, accumulator 23 constantly can repeat said process and store certain energy.
When there is elevator rope break, diversion sheave 31 can drop and be pressed on pressing plate 33, and spring 35 compresses, and pressing plate 33 is pressed in row
On Cheng Kaiguan 36, travel switch 36 can feed back signal to ball magnetic valve 26, or when there is 4 velocity anomaly of car, electronics
Rotational speed governor 32 can detect the velocity anomaly of steel cable on diversion sheave 31, and electronics rotational speed governor 32 can also feed back signal to ball
Formula magnetic valve 26, and the ball magnetic valve 26 for receiving above-mentioned arbitrary feedback signal can be switched to left position, the liquid of accumulator 23
Force feed is entered in oil cylinder 15, and the piston rod 155 of oil cylinder 15 is stretched out, and one end of drivening rod 13 is down moved, now, due to even
Pole socket 14 becomes a fulcrum, and the other end of connecting rod 13 is then up moved, and drives pull bar 12 up to move, and pull bar 12 is connected
Safety tongs 11 be tightened up, the locked car 4 of safety tongs 11, elevator is stopped.
After the failure of elevator is excluded, switch back magnetic valve 210 arrives right position, and the cavity of hydraulic oil from oil cylinder 15 is flowed back to
Into fuel tank 25, the piston rod 155 of oil cylinder 15 is retracted, and one end of drivening rod 13 is up moved, now, due to connecting rod base 14 into
For a fulcrum, the other end of connecting rod 13 is then down moved, and drives pull bar 12 down to move, and the safety tongs that pull bar 12 is connected
11 are relaxed, the no longer locked car 4 of safety tongs 11, and elevator recovers normal work.The present invention is simple in construction, safe and reliable, and behaviour
Make simple, it is easy to maintenance.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (8)
1. the safe forceps system of hydraulic electronic, wherein, including safety tongs drag link mechanism (1), hydraulic station (2), fault detection mechanism (3)
With car (4), the safety tongs drag link mechanism (1) is connected with hydraulic station (2), the hydraulic station (2) and fault detection mechanism (3)
It is electrically connected with, the safety tongs drag link mechanism (1), hydraulic station (2) and fault detection mechanism (3) are installed on car (4), institute
Stating safety tongs drag link mechanism (1) includes safety tongs (11), pull bar (12), connecting rod (13), connecting rod base (14), oil cylinder (15) and oil cylinder
Frame (16), the safety tongs (11), pull bar (12), connecting rod (13) and oil cylinder (15) are sequentially connected, and the connecting rod (13) is arranged on
On connecting rod base (14), the oil cylinder (15) is arranged on oil cylinder seat (16), the safety tongs (11), connecting rod base (14) and oil cylinder seat
(16) it is installed on car (4), the hydraulic station (2) includes hydraulic pump (21), check valve (22), accumulator (23), pressure
Relay (24), fuel tank (25), ball magnetic valve (26) and motor (27), the hydraulic pump (21) connect with motor (27)
Connect, and its oil inlet end is connected with fuel tank (25), oil outlet end, check valve (22) and the accumulator (23) of the hydraulic pump (21) pass through
Oil pipe is sequentially connected, and the check valve (22) is connected with pressure switch (24), the check valve (22), ball magnetic valve (26)
It is sequentially connected with oil cylinder (15).
2. the safe forceps system of hydraulic electronic according to claim 1, wherein, the fault detection mechanism (3) includes anti-rope
Take turns (31), electronics rotational speed governor (32), pressing plate (33), pressing plate frame (34), spring (35), travel switch (36) and ward off rope support
(37), one end of the pressing plate (33) is connected with pressing plate frame (34), and the other end is connected with spring (35), the electronics rotating speed control
Device (32) and travel switch (36) are electrically connected with ball magnetic valve (26), and the pressing plate (33) and travel switch (36) are pacified
Underface mounted in diversion sheave (31), the diversion sheave (31), electronics rotational speed governor (32), pressing plate frame (34), spring (35)
It is installed in travel switch (36) on ward off rope support (37).
3. the safe forceps system of hydraulic electronic according to claim 1, wherein, the connecting rod base (14) includes connecting rod bottom plate
(141) riser (142) and with connecting rod bottom plate (141) being fixedly connected, the riser (142) is provided with the first groove (1421), described
First groove (1421) and connecting rod (13) match.
4. the safe forceps system of hydraulic electronic according to claim 1, wherein, the oil cylinder (15) includes oil cylinder bottom plate
(151), cylinder body (152), cylinder cap (153), piston (154) and piston rod (155), described cylinder body (152) one end and oil cylinder bottom plate
(151) connect, the other end and cylinder cap (153) connection, the piston (154) and piston rod (155) connection, the piston (154)
In cylinder body (152), the piston rod (155) is provided with the second groove (1551), second groove (1551) and connecting rod (13)
Match.
5. the safe forceps system of hydraulic electronic according to claim 1, wherein, the cylinder rack (16) include lower plate (161),
Column (162) and panel (163), described column (162) one end are fixedly connected with lower plate (161), and the other end is solid with panel (163)
Fixed connection, the oil cylinder (15) is arranged on panel (163).
6. the safe forceps system of hydraulic electronic according to claim 1, wherein, the hydraulic station (2) include overflow valve (28),
Return filter (29) and reset magnetic valve (210), oil outlet end, overflow valve (28) and the return filter of the hydraulic pump (21)
(29) be sequentially connected, the return filter (29) and fuel tank (25) connection, it is described reset magnetic valve (210) respectively with hydraulic pump
(21), return filter (29) and oil cylinder (15) connection.
7. the safe forceps system of hydraulic electronic according to claim 1, wherein, the accumulator (23) includes air chamber
(231) and fluid chamber (232), the air chamber (231) connects with fluid chamber (232).
8. the safe forceps system of hydraulic electronic according to claim 1, wherein, the pressure switch (24) presses off including height
(241) and low tension switch (242) are closed, the high-voltage switch gear (241) and low tension switch (242) electrically connect with motor (27)
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510519307.7A CN105035905B (en) | 2015-08-21 | 2015-08-21 | The safe forceps system of hydraulic electronic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510519307.7A CN105035905B (en) | 2015-08-21 | 2015-08-21 | The safe forceps system of hydraulic electronic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105035905A CN105035905A (en) | 2015-11-11 |
| CN105035905B true CN105035905B (en) | 2017-09-15 |
Family
ID=54442964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510519307.7A Expired - Fee Related CN105035905B (en) | 2015-08-21 | 2015-08-21 | The safe forceps system of hydraulic electronic |
Country Status (1)
| Country | Link |
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| CN (1) | CN105035905B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883525A (en) * | 2016-06-08 | 2016-08-24 | 爱默生电梯有限公司 | Elevator falling preventing safety protection mechanism based on safety tongs operation |
| EP3342740B1 (en) * | 2016-12-29 | 2020-02-05 | KONE Corporation | A method for avoiding unwanted safety gear tripping in a safety stopping system of an elevator system and a safety stopping system |
| CN112678643B (en) * | 2021-01-11 | 2022-04-12 | 安川双菱电梯有限公司 | Elevator overhauls protection safety device |
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| CN2360374Y (en) * | 1999-02-09 | 2000-01-26 | 陈毅凯 | Safety pliers of lifting crane cage |
| EP1140687B1 (en) * | 1998-12-22 | 2003-09-10 | Otis Elevator Company | Ropeless governor mechanism for an elevator car |
| CN102862893A (en) * | 2011-07-07 | 2013-01-09 | 刘小泉 | Lifting plier device of elevator car |
| CN203255828U (en) * | 2013-05-24 | 2013-10-30 | 浙江法斯特电梯有限公司 | Elevator safety tongs |
| CN103818797A (en) * | 2014-03-24 | 2014-05-28 | 袁昭成 | Speed limiter and safety gear linkage system based on elevator |
| CN204162219U (en) * | 2014-09-23 | 2015-02-18 | 杭州佰诚电梯配件有限公司 | A kind of pincers of the improved safety for elevator car head pulling apparatus |
| CN204297861U (en) * | 2014-12-16 | 2015-04-29 | 哈尔滨市三和佳美科技发展有限公司 | Safe fall-proof clamps |
| CN204873332U (en) * | 2015-08-20 | 2015-12-16 | 广东德奥电梯科技有限公司 | Hydraulic pressure safety tongs drag link mechanism |
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2015
- 2015-08-21 CN CN201510519307.7A patent/CN105035905B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1140687B1 (en) * | 1998-12-22 | 2003-09-10 | Otis Elevator Company | Ropeless governor mechanism for an elevator car |
| CN2360374Y (en) * | 1999-02-09 | 2000-01-26 | 陈毅凯 | Safety pliers of lifting crane cage |
| CN102862893A (en) * | 2011-07-07 | 2013-01-09 | 刘小泉 | Lifting plier device of elevator car |
| CN203255828U (en) * | 2013-05-24 | 2013-10-30 | 浙江法斯特电梯有限公司 | Elevator safety tongs |
| CN103818797A (en) * | 2014-03-24 | 2014-05-28 | 袁昭成 | Speed limiter and safety gear linkage system based on elevator |
| CN204162219U (en) * | 2014-09-23 | 2015-02-18 | 杭州佰诚电梯配件有限公司 | A kind of pincers of the improved safety for elevator car head pulling apparatus |
| CN204297861U (en) * | 2014-12-16 | 2015-04-29 | 哈尔滨市三和佳美科技发展有限公司 | Safe fall-proof clamps |
| CN204873332U (en) * | 2015-08-20 | 2015-12-16 | 广东德奥电梯科技有限公司 | Hydraulic pressure safety tongs drag link mechanism |
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| Publication number | Publication date |
|---|---|
| CN105035905A (en) | 2015-11-11 |
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