CN105016166B - Two-way safety gear used for preventing lift car from moving accidentally - Google Patents
Two-way safety gear used for preventing lift car from moving accidentally Download PDFInfo
- Publication number
- CN105016166B CN105016166B CN201510495261.XA CN201510495261A CN105016166B CN 105016166 B CN105016166 B CN 105016166B CN 201510495261 A CN201510495261 A CN 201510495261A CN 105016166 B CN105016166 B CN 105016166B
- Authority
- CN
- China
- Prior art keywords
- inner shell
- shell
- wedge
- horizontal
- guide rail
- 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
- 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 two-way safety gear used for preventing a lift car from moving accidentally. The two-way safety gear is clamped on a guide rail and comprises an inner shell arranged in an inner cavity of an outer shell. A horizontal positioning screw and a first horizontal movable screw with an elastic piece are arranged between the outer shell and the inner shell. Flat gear bodies are arranged on the portions, on the left side and the right side of the guide rail, of the inner cavity of the inner shell respectively. An upper wedge gear body and a lower wedge gear body which are symmetrical about the horizontal middle line of the inner shell are arranged on the portions, on the left side and the right side of the guide rail, of the inner cavity of the inner shell respectively. Double wedge blocks which are symmetrical about the horizontal middle line of the inner shell are arranged on the portions, on the left side and the right side of the guide rail, of the inner cavity of the inner shell respectively. The double wedge blocks are connected with the inner shell through second horizontal movable screws with elastic pieces. Movable push-pull rods extending out of a horizontal pipe cavity of the inner shell are arranged on the portions, on the rear right sides of the double wedge blocks, in the inner cavity of the inner shell. The contact faces between the front ends of the movable push-pull rods and the double wedge blocks are inclined faces. The movable push-pull rods are connected with safety gear transmission mechanisms through horizontal pin shafts. The two-way safety gear is simple in structure, safe and reliable. The braking force of the two-way safety gear directly acts on the lift car and the guide rail. The two-way safety gear has the good short-distance and short-time braking effect for the accidental movement of the lift car.
Description
Technical field
The present invention relates to lift facility security technology area, more particularly, to a kind of for preventing the double of car accidental movement
To safety tongs.
Background technology
In the middle of skyscraper, direct lifting type elevator is lifting quick, convenient obtaining a wide range of applications.Elevator safety gear is filled
Put is, under the manipulation of limiter of speed, after the very serious failure such as hypervelocity, disconnected rope occurs in elevator, by car urgent stop and to press from both sides
Hold a kind of safety device on guide rail.Typically be made up of housing, voussoir, jaw etc., and with limiter of speed collaborative work.Its work
Principle is：After limiter of speed detects elevator overspeed operation, triggering safety tongs enters working condition, and jaw produces extruding to guide rail and makees
With the frictional force between safety tongs and guide rail increases rapidly, forces elevator stop motion.Traditional safety tongs is for preventing elevator
Overspeed design, with good braking effect, safe and reliable characteristic, but it cannot be used for preventing car accidental movement.When
Elevator stop passenger enter or when stepping out car because elevator is out of control accidental movement, easily cause human casualty accident, therefore
Design specialized is needed in the safety tongs for preventing car accidental movement, make car very short away from discrete time（As 0.2 meter, 0.5
Second）It is interior, less than or be far below normal speed（Such as 0.8 metre per second (m/s), normal speed are usually several meters to ten number metre per second (m/s)s）When stop.
The content of the invention
The present invention provides a kind of bidirectional safety tongs for preventing car accidental movement, it is therefore intended that solve conventional security pincers
Cannot be used for the problem for preventing car accidental movement from causing security incident.
For achieving the above object, the present invention can take following technical proposals：
Bidirectional safety tongs for preventing car accidental movement of the present invention, including front openings are fastened on guide rail
Safety tongs body, the safety tongs body includes the inner shell being arranged in shell inner cavity, and inner shell can be in the upper and lower wall of shell
Slide in the groove of side, the housing back wall is provided with rectangular aperture, and the inner shell is provided with and extends to outside the rectangular aperture
Horizontal tube chamber, the horizontal location screw rod for positioning to inner shell is provided with the left of shell, end is provided with the right side of shell and is fixed
The first level moving screw being connected in interior shell side wall, is provided with positioned at inner shell and shell on the first level moving screw
Between the first elastic component；
It is located in the inner shell inner chamber on the right side of the guide rail and is provided with the upper and lower wedge caliper for being symmetrical in inner shell horizontal central line
And dual-wedge, dual-wedge can slide in the groove on the inside of the upper and lower wall of inner shell, and upper and lower wedge caliper can be installed on dual-wedge
Slide in the groove that the guide plate of front and rear end is formed, flat pliers body is provided with the left of the guide rail；The upper and lower wedge caliper knot
Structure is identical, and upper wedge caliper is connected with the top of inner shell by return spring；The dual-wedge passes through the second horizontal anomalous movement screw rod and inner shell
It is connected, described second horizontal anomalous movement screw rod one end is fixed in dual-wedge, the other end is extended on the outside of inner shell and socket is provided with
Second elastic component；The upper and lower wedge surface of the dual-wedge respectively with corresponding upper and lower wedge caliper inclination contact, its inclined contact surface
Acute angle is with the angle α of horizontal direction；
The dual-wedge right lateral side is provided with the shifting outside extending to the horizontal tube chamber in the inner shell inner chamber
Dynamic push-pull bar, the mobile push-pull bar front end are inclined-plane with the contact surface of the dual-wedge, and mobile push-pull bar passes through horizontal bearing pin
It is connected with safety tongs drive mechanism.
Horizontal roller is provided with the inclined plane of the dual-wedge.
Car accidental movement detection switch is provided with the shell outer right wall, it is solid in the inner shell outer right wall
Surely it is provided with and extends to car accidental movement detection switch trigger shaft outside shell.
Disc spring is provided between the flat pliers body and the inner shell.
Bidirectional safety tongs provided by the present invention for preventing car accidental movement, it is simple structure, safe and reliable.Can be square
Just it is arranged on car upper beam or column, stop power is acted directly on car and guide rail, tradition can not only be reached anti-
The stop effect of overspeed safety tongs, and there is good short distance, short time stop for car occurs accidental movement
Effect.Due to there is no velocity measuring and feedback procedure, the distance of car accidental movement is effectively shortened.The present invention is adopted and electricity
The perpendicular mobile push-pull bar of terraced traffic direction is used as horizontal trigger unit, when mobile push-pull bar is entered or exits inner shell, energy
Safety tongs is enough made to enter or exit the holding state for preventing car accidental movement；When safety tongs is in holding state, if sedan-chair
There is accidental movement in railway carriage or compartment, by the interaction between the brake component such as dual-wedge and upper and lower wedge caliper, inner shell, can make to lead
The flat pliers body of rail both sides and upper and lower wedge caliper hold guide rail at short notice tightly, and reach carries out the mesh of stop to car accidental movement
's.In addition, the present invention easily can also be connected with the drive mechanism of gate linkage, prevent car generation accidental movement and cause
Pernicious security incident.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view in A-A faces in Fig. 1.
Specific embodiment
As shown in Figure 1, 2, the bidirectional safety tongs for preventing car accidental movement of the present invention, including front openings
The safety tongs body being fastened on guide rail 1, the safety tongs body include the inner shell 3 being arranged in 2 inner chamber of shell, the inner shell
3 can slide in the groove 24 on the inside of 2 upper and lower wall of the shell, and 2 rear wall of the shell offers rectangular aperture 4, the inner shell
3 are provided with the horizontal tube chamber 5 extended to outside the rectangular aperture 4, and the water for positioning to inner shell 3 is provided with the left of shell 2
Flat positioning screw 6, is provided with the first level moving screw 7 that end is fixedly connected in 3 side wall of inner shell on the right side of shell 2, described
The first elastic component 8 being provided with first level moving screw 7 between inner shell 3 and shell 2；
It is located in 3 inner chamber of the inner shell on the right side of the guide rail 1 and is provided with the upper and lower wedge for being symmetrical in 3 horizontal central line of inner shell
Caliper 9,10 and dual-wedge 11, the dual-wedge 11 can slide in the groove 25 on the inside of 3 upper and lower wall of inner shell, the upper and lower wedge
The groove parallel to inclined-plane is carved with caliper 9,10 forward and backward faces, guide plate 23 is arranged on 11 front and rear end of dual-wedge and is provided with edge
The inside flanging in 11 inclined-plane of dual-wedge, the flanging are embedded in the groove of upper and lower wedge caliper 9,10, and upper and lower wedge caliper 9,10 can edge
The flanging slides, and on the left of the guide rail 1 is being provided with flat pliers body 12；The upper and lower wedge caliper 9,10 structures are identical, on
Wedge caliper 9 is connected with the top of inner shell 3 by return spring 13；The dual-wedge 11 is by the second horizontal anomalous movement screw rod 14 and inner shell 3
It is connected, described second horizontal anomalous movement screw rod, 14 one end is fixed in dual-wedge 11, the other end is extended on the outside of inner shell 3 and socket sets
It is equipped with the second elastic component 15；The upper and lower wedge surface of the dual-wedge 11 respectively with corresponding upper and lower wedge caliper 9,10 inclination contacts,
Its inclined contact surface is acute angle with the angle α of horizontal direction；
It is located in 3 inner chamber of the inner shell outside being provided with and extend to the horizontal tube chamber 5 on the right side of the dual-wedge 11
Mobile push-pull bar 17,17 front end of mobile push-pull bar are inclined-plane with the contact surface of the dual-wedge 11, and mobile push-pull bar 17 leads to
Cross horizontal bearing pin 18 to be connected with safety tongs drive mechanism 19.
Above-mentioned first elastic component 8 and the second elastic component 15 are the elastomers such as spring, or elastomer.
Horizontal roller 20 is inlaid with the inclined plane of dual-wedge 11, is conducive to reducing upper and lower wedge caliper 9,10 relative to double
The resistance of the motion of voussoir 11, can effectively reduce the distance of car accidental movement.
Car accidental movement detection switch 21 is provided with 2 outer right wall of the shell, in 3 outer right wall of the inner shell
On be fixedly installed the car accidental movement detection switch trigger shaft 22 extended to outside shell 2.When there is accidental movement in car,
Car accidental movement detection switch trigger shaft 22 touches car accidental movement detection switch 21, sends signal cut elevator power supply,
Prevent elevator from continuing to move to serious accident.
Between the flat pliers body 12 and the inner shell 3, disc spring 16 can also be set；
The switching motion of gate can be replaced into safety tongs by above-mentioned safety tongs drive mechanism 19 and elevator cage door linkage
Mobile push-pull bar 17 is specifically advanced or is pulled out to the inside of safety tongs by clutch action, the clutch action, so that the present invention
Safety tongs is entered or exits the holding state for preventing car accidental movement.
When gate is completely closed, mobile 17 front end inclined-plane of push-pull bar is fitted with the inclined surface of dual-wedge 11, in drawing
Go out in place state, the present invention is in original state.Now, flat pliers body 12 and upper and lower wedge caliper 9,10 are reserved between guide rail 1
There are enough gaps, guide rail 1 is passed through, elevator can normally start and run.
When car opens the door, mobile push-pull bar 17 is advanced in inner shell 3 by safety tongs drive mechanism 19, mobile push-pull bar 17
The slope driving dual-wedge 11 of front end is to left movement, so that 11 Jing horizontal rollers 20 of dual-wedge drive upper and lower wedge caliper 9,10
1 direction of direction guiding rail extrudes；When mobile push-pull bar 17 is advanced to certain depth, the shape between guide rail 1 of upper and lower wedge caliper 9,10
Contact into face, the second horizontal anomalous movement screw rod 14 is moved to the left with dual-wedge 11 therebetween, and the second spring 15 on the outside of inner shell 3 is pressed
Contracting；Mobile push-pull bar 17 continues propulsion, forces mobile push-pull bar 17 to move right along horizontal bearing pin 18, while driving inner shell 3
Move right, gradually direction guiding rail 1 is close for the flat pliers body 12 for being now placed in inner shell 3, first between inner shell 3 and shell 2
Spring 8 is compressed, and the inclined plane part to mobile push-pull bar 17 is fully advanced in place, and the planar portions of its planar portions and dual-wedge 11 are pasted
Close, this extruding moving process terminates；Now, the aperture of elevator cage door just be enable people head and shoulder portion pass in and out car away from
From, face is formed between the upper and lower wedge caliper 9,10 and guide rail 1 of locking member and is contacted, but between flat pliers body 12 and guide rail 1 still
Reserving gaps are kept, entering safety tongs can occur the holding state that accidental movement is braked to car at any time.
In the standby state, gate continues to open, if during fully opening to gate there is no accidental movement in car, its
The closing motion of gate will make to move push-pull bar 17 and exit inner shell 3 afterwards, and above-mentioned each part is carried out and aforementioned activities phase negative side therewith
To motion, until gate close head and shoulder portion of the aperture just to make people can not pass in and out car apart from when, safety tongs is extensive
Original state is arrived again；If car occurs accidental movement up or down during gate is opened, for example, there occurs upwards
During accidental movement, the present invention on car is synchronously moved upwards, friction retardance and folding wedge of the upper wedge caliper 9 by guide rail 1
11 move toward one another of block, is extruded to dual-wedge 11 to the right by horizontal roller 20, forces mobile push-pull bar 17 to continue on water
Flat-sale axle 18 is moved right, while driving inner shell 3 to move right, the first spring 8 continues to be compressed, and is now placed in inner shell 3
The 1 close and contact of the continuation of flat pliers body 12 direction guiding rail；In the process, when inner shell 3 is moved right, hyposphene caliper 10 with guide plate 23 to
Move right and leave guide rail 1, while car accidental movement detection switch trigger shaft 22 is moved right therewith, trigger car accidental movement
Detection switch 21, sends signal control elevator safety loop and driving host power supply disconnects, and shutting down elevator can not restart；
Car is moved on continuing, and the flat pliers body 12 and upper wedge caliper 9 contacted with guide rail 1 is increased to the pressure of guide rail 1 rapidly, forces car
Stop movement, it is ensured that the safety of the car personnel that come in and go out.Stop can be worked as so that disc spring 16 is installed between flat pliers body 12 and inner shell 3
When deceleration is close to tolerance limit value, the pressure of flat pliers body 12 and upper wedge caliper 9 to guide rail 1 can be slowed down, car is delayed relatively
Slow stop, mitigates the stop impulsive force to passenger in car.When there occurs downward accidental movement, the course of work of the present invention
Similar to said process, friction retardance and dual-wedge 11 move toward one another of the hyposphene caliper 10 by guide rail 1 are the difference is that only, and
Upper wedge caliper 9 leaves guide rail 1.
The present invention adopts appropriate batch-type transmission mechanism, is easily installed on car upper beam or column, makes system
Stop power to act directly on car and guide rail, the stop effect of traditional anti-overspeed safety tongs can not only be reached, and it is right
There is accidental movement in car and there is good short distance, short time stop effect.Due to there is no velocity measuring and feeding back
Journey, effectively shortens the distance of car accidental movement.
Claims (4)
1. a kind of bidirectional safety tongs for preventing car accidental movement, including front openings are fastened on guide rail（1）On safety
Pincers body, it is characterised in that：
The safety tongs body includes being arranged on shell（2）Inner shell in inner chamber（3）, the shell（2）Rear wall is provided with rectangle
Opening（4）, the inner shell（3）It is provided with and extends to the rectangular aperture（4）Outside horizontal tube chamber（5）, shell（2）Left side sets
It is equipped with for inner shell（3）The horizontal location screw rod of positioning（6）, shell（2）Right side is provided with end and is fixedly connected on inner shell（3）
First level moving screw in the wall of side（7）, the first level moving screw（7）On be provided with positioned at inner shell（3）And shell
（2）Between the first elastic component（8）；
In the inner shell（3）The guide rail is located in inner chamber（1）Right side is provided with and is symmetrical in inner shell（3）Horizontal central line it is upper and lower
Wedge caliper（9、10）And dual-wedge（11）, positioned at the guide rail（1）Left side is provided with flat pliers body（12）；The upper and lower wedge caliper
（9、10）Structure is identical, upper wedge caliper（9）By return spring（13）With inner shell（3）Top is connected；The dual-wedge（11）Pass through
Second horizontal anomalous movement screw rod（14）With inner shell（3）It is connected, the second horizontal anomalous movement screw rod（14）One end is fixed on dual-wedge
（11）In, the other end extends to inner shell（3）Outside and be socketed be provided with the second elastic component（15）；The dual-wedge（11）It is upper,
Lower wedge surface respectively with corresponding upper and lower wedge caliper（9、10）Inclination contact, its inclined contact surface are with the angle α of horizontal direction
Acute angle；
In the inner shell（3）The dual-wedge is located in inner chamber（11）Right side is provided with and extends to the horizontal tube chamber（5）Outside
Mobile push-pull bar（17）, the mobile push-pull bar（17）Front end and the dual-wedge（11）Contact surface be inclined-plane, movement push away
Pull bar（17）By horizontal bearing pin（18）With safety tongs drive mechanism（19）Connection.
2. it is used for according to claim 1 preventing the bidirectional safety tongs of car accidental movement, it is characterised in that：The dual-wedge
（11）Inclined plane on be provided with horizontal roller（20）.
3. it is used for according to claim 1 preventing the bidirectional safety tongs of car accidental movement, it is characterised in that：In the shell
（2）Car accidental movement detection switch is provided with outer right wall（21）, in the inner shell（3）It is fixedly installed in outer right wall
Extend to shell（2）Outside car accidental movement detection switch trigger shaft（22）.
4. it is used for according to claim 1 preventing the bidirectional safety tongs of car accidental movement, it is characterised in that：In the flat pliers
Body（12）With the inner shell（3）Between be provided with disc spring（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495261.XA CN105016166B (en) | 2015-08-13 | 2015-08-13 | Two-way safety gear used for preventing lift car from moving accidentally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495261.XA CN105016166B (en) | 2015-08-13 | 2015-08-13 | Two-way safety gear used for preventing lift car from moving accidentally |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105016166A CN105016166A (en) | 2015-11-04 |
| CN105016166B true CN105016166B (en) | 2017-04-12 |
Family
ID=54406552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510495261.XA Expired - Fee Related CN105016166B (en) | 2015-08-13 | 2015-08-13 | Two-way safety gear used for preventing lift car from moving accidentally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105016166B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205772609U (en) * | 2016-06-08 | 2016-12-07 | 中国船舶重工集团公司第七一三研究所 | Anti-accidental movement and the dual-purpose bidirectional safety tongs of anti-hypervelocity |
| CN106241549B (en) * | 2016-08-30 | 2019-01-11 | 浙江西子富沃德电机有限公司 | A kind of elevator bidirectional safety tongs |
| 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 |
| CN109911739B (en) * | 2019-03-18 | 2024-02-09 | 杭州优迈科技有限公司 | Bidirectional safety tongs for elevator and elevator |
| CN114249204A (en) * | 2020-09-24 | 2022-03-29 | 湖南大举信息科技有限公司 | Safety tongs for multi-car parallel elevator |
| CN112173913B (en) * | 2020-10-23 | 2022-03-15 | 晋江华菱电梯有限公司 | Safety elevator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101028900B (en) * | 2001-06-29 | 2012-02-15 | 三菱电机株式会社 | Emergency brake of elevator |
| CN2656380Y (en) * | 2003-09-27 | 2004-11-17 | 叶时光 | Bidirectional safety pincers for elevator |
| CN2721586Y (en) * | 2004-05-24 | 2005-08-31 | 宁波申菱电梯配件有限公司 | Bidirectional speed limited safety pliers for elevator |
| CN2711118Y (en) * | 2004-06-22 | 2005-07-20 | 河北东方机械厂 | Two-direction safety tongs |
| KR100726789B1 (en) * | 2006-02-28 | 2007-06-11 | 주식회사 세명엘리베이터 | An elevator bi-directional braking device |
| JP5345041B2 (en) * | 2009-11-18 | 2013-11-20 | 株式会社日立製作所 | Elevator braking device |
| CN204958046U (en) * | 2015-08-13 | 2016-01-13 | 卫小兵 | A two -way safety tongs for preventing car is unexpected to be removed |
-
2015
- 2015-08-13 CN CN201510495261.XA patent/CN105016166B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105016166A (en) | 2015-11-04 |
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