CN103896137A - Safety unlocking device of manual landing door of simple elevator - Google Patents
Safety unlocking device of manual landing door of simple elevator Download PDFInfo
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- CN103896137A CN103896137A CN201410126991.8A CN201410126991A CN103896137A CN 103896137 A CN103896137 A CN 103896137A CN 201410126991 A CN201410126991 A CN 201410126991A CN 103896137 A CN103896137 A CN 103896137A
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- landing door
- layer door
- door lock
- unblanking
- loading space
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Abstract
The invention discloses a safety unlocking device of a manual landing door of a simple elevator. The safety unlocking device is characterized in that when a transverse traction resetting mechanism is pulled from the outer side of the manual landing door, a wheel collides with a car impact rod after a traction plate translates a certain distance under the condition that a car stays on the floor, and when the traction plate further translates, an unlocking pull rod rotates clockwise under the action of the wheel and the car impact rod, an unlocking pull wire pulls a movable hook of a landing door lock to rotate to be separated from a fixed hook, so that the landing door lock is unlocked and the landing door is opened. When the car does not reach the floor, the traction plate drives the unlocking pull rod to transversely move, the wheel keeps no contact with the car impact rod, the unlocking pull wire drives the movable hook of the landing door lock to rotate by a small angle, the movable hook of the landing door lock fails to be separated from the fixed hook of the landing door lock, the landing door lock is not unlocked and the landing door is not opened, so that accidents are prevented. Besides, the safety unlocking device is simple in structure, low in manufacturing cost, low in mounting accuracy requirements, and convenient to be modified on the landing door lock of the simple elevator.
Description
Technical field
The present invention relates to a kind of unlocking apparatus of elevator door, especially relate to the manually securely unlocking device of layer door of a kind of simplified elevator.
Background technology
Simplified elevator is using towing machine, winch, electric block, hydraulic power unit etc. as actuating device, drive loading space by the parts such as steel rope, rack-and-gear, chain or hydraulic ram, in hoistway along vertical or be less than the only elevator machinery for carrying cargo of the rigidity guide piece operation of 15 ° with vertical direction leaning angle.This product structure is simple, and technical requirements is not high, simultaneously low to building requirement, relative low price, thereby be widely used in enterprise especially medium and small sized enterprises.
For preventing fall hoistway or sheared by simplified elevator of user and other staff, simplified elevator is provided with layer door and the goods-carriage-door safety with assurance user and other staff, only after layer door and goods-carriage-door are closed completely, could start elevator.Existing simplified elevator adopts manually layer door and manually goods-carriage-door mostly, according to the regulation of 7.1.6.3 article of the pressure standard GB/T 28755-2012 " simplified elevator safety procedure " implementing in issue in 2012, on February 1st, 2013, " before loading space motion, layer door should be locked in make position effectively; the engagement size of locking element should not be less than 7mm; its locking must be confirmed by an electric interlocking installation that meets (this standard) 7.1.5 ", this has further improved the essential safety of simplified elevator.
But the requirement of the manual layer door lock product out of reach current required standard of producing before standard implementation, exists larger security risk, and according to accident investigation analysis result, the defect of layer door lock is the one of the main reasons that causes safety misadventure to occur.The current manual layer door lock ubiquity fault rate in use is high, the problem of poor reliability, needs badly and transforms.On the other hand, part manufacturing firm understands thorough not to the new demand of standard, cause the requirement of its product out of reach new standard.
Existing a solution is to adopt electromagnetic valve or linear electric motors as unlocking apparatus, but have that cost is higher, setting accuracy require high, be not easy to by problems such as simplified elevator transformations.
Summary of the invention
Technical matters to be solved by this invention is to provide one and had both met GB28755-2012 " simplified elevator safety procedure " requirement, and low cost of manufacture, setting accuracy require low and be convenient at the manual layer door securely unlocking device with simplified elevator transformation again.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of simplified elevator is the securely unlocking device of layer door manually, the triangulation chain the movable part that comprise the pull bar of unblanking, the bracing wire of unblanking that one end is connected with layer door lock movable hook tail end, is located at the lateral traction response agency that can pull from manual layer of outer side of door in the middle part of manual layer door and is located at lateral traction response agency; The first cross bar part that the described pull bar of unblanking comprises the vertical connecting bridge fixing with triangulation chain lock core, is connected with the upper end of vertical connecting bridge and extends to loading space lance direction and the second cross bar part that is connected with the lower end of vertical connecting bridge and oppositely extends to loading space lance, the end of described the second cross bar part is connected with the other end of the bracing wire of unblanking, and the end of described the first cross bar part is articulated with roller; At the movable part of described lateral traction response agency in loading space lance direction moving process, after described roller and the touching of loading space lance, scroll up along loading space lance, drive the first cross bar part upwards to rotate, the second cross bar part rotates and pulls the bracing wire of unblanking to open a layer door lock.
As preferably, described lateral traction response agency comprises the penetrating framework in the two sides that is fixed on manual layer door, the towing plate that movable distance is 25mm in framework, is provided with two groups of guiding reset assemblies between towing plate and framework; Described triangulation chain is located on the movable part of lateral traction response agency and refers to, described triangulation chain and towing plate are fixed.
As preferably, described guiding reset assembly comprises the first guide bolt being threaded with towing plate through frame right frame and passes the second guide bolt that frame left frame is threaded with towing plate, between described the second adjusting bolt and frame right frame, is arranged with retracing spring.
As preferably, described the second guide bolt is provided with the setscrew nut pair for adjusting the second guide bolt and towing plate connection location.Can reduce setting accuracy requirement.
As preferably, on traction response agency, be designed with triangulation chain, compact conformation.At layer outdoors, available triangular key rotational lock core, drives the pull bar of unblanking to open layer door.After energency-unlocking, under the effect of layer door lock retracing spring, unlocking apparatus resets.
Compared with prior art, while the invention has the advantages that the lateral traction response agency of pulling from manual layer outer side of door, in the situation that loading space is stagnated this layer, collide at towing plate translation one segment distance rear roller and loading space lance, when after this towing plate continues translation, the pull bar of unblanking does clickwise under the effect of roller and loading space lance, pull the bracing wire of unblanking, and then pull layer door lock movable hook to rotate, layer door lock movable hook and stay hook are departed from, open layer door lock, open layer door; And the in the situation that of non-layer of loading space, lateral traction response agency drives the pull bar transverse shifting of unblanking, roller cannot touch loading space lance, the bracing wire drive layer amplitude that door lock movable hook rotates of now unblanking is very little, layer door lock movable hook fails to depart from layer door lock stay hook, layer door lock do not opened, and layer door can not be opened, thereby Accident prevention occurs.And the present invention is simple and compact for structure, cheap, setting accuracy requires low, is convenient in the transformation with simplified elevator layer door lock.
Accompanying drawing explanation
Fig. 1 is the inner side view after simplified elevator assembling the present invention.
Fig. 2 is the outer side view after lateral traction response agency and triangulation chain and the pull bar of unblanking amplify.
Unblank while being the non-flat bed of the loading space actual motion schematic diagram of bracing wire knot point of Fig. 3.
Fig. 4 unblanks the knot point motion of bracing wire lower end equivalent schematic while being the non-flat bed of loading space.
Unblank while the being loading space flat bed actual motion schematic diagram of pull bar of Fig. 5.
Fig. 6 unblanks the knot point motion of bracing wire lower end equivalent schematic while being loading space flat bed.
Shown in figure: 10, the pull bar of unblanking, 101, vertical connecting bridge, 102, the first cross bar part; 103, the second cross bar part, 104, roller, 20, the bracing wire of unblanking; 31, framework, 32, towing plate, 33, the first guide bolt; 34, the second guide bolt, 35, retracing spring, 36, setscrew nut; 37, spring protecting jacket, 40, triangulation chain, 51, stay hook; 52, movable hook, 521, switch piece, 60, loading space lance.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
This preferred embodiment is the manually securely unlocking device of layer door of a kind of simplified elevator as depicted in figs. 1 and 2, the triangulation chain 40 movable part that comprise the pull bar 10 of unblanking, the bracing wire 20 of unblanking that one end is connected with the switch piece 521 welding on layer door lock movable hook 52 tail ends, is located at the lateral traction response agency that can pull from manual layer of outer side of door at manual layer door middle part and is located at lateral traction response agency; Unblank pull bar 10 comprise the vertical connecting bridge 101 of fixing by nut with triangulation chain 40 lock cores of integrative-structure, with the first cross bar part 102 of extending to loading space lance 60 that vertically upper end of connecting bridge 101 is connected and the second cross bar part 103 towards the 60 reverse extensions of loading space lance being connected with the lower end of vertical connecting bridge 101, the end of the second cross bar part 103 is connected with the other end of the bracing wire 20 of unblanking, and the end of the first cross bar part 102 is articulated with roller 104; At the movable part of lateral traction response agency in loading space lance 60 direction moving process, roller 104 scrolls up along loading space lance 60 after touching with loading space lance 60, drive the first cross bar part 102 upwards to rotate, the second cross bar part 103 rotates and pulls the bracing wire 20 of unblanking to open a layer door lock.Wherein, triangulation chain 40 lock core centers are with vertically connecting bridge 101 centers are overlapping; Unblank bracing wire 20 is designated as upper end knot point with a point of connection for layer door lock movable hook 52 tail end switch pieces 521, the point of connection of bracing wire 20 and the second cross bar part 103 of unblanking is designated as lower end knot point, when manually layer door closed, upper end knot point and lower end knot point are on same vertical line.
In the present embodiment, lateral traction response agency comprises the penetrating framework 31 in the two sides that is fixed on manual layer door, the towing plate 32 that is 25mm in the interior movable distance of framework 31, is provided with two groups of reset assemblies that lead between towing plate 32 and framework 31; Triangulation chain 40 is located on the movable part of lateral traction response agency and refers to, triangulation chain 40 is fixing with towing plate 32.Guiding reset assembly comprises the first guide bolt 33 being threaded with towing plate 32 through framework 31 Right Borders and the second guide bolt 34 being threaded with towing plate 32 through framework 31 left borders; between the second adjusting bolt 34 and framework 31 Right Borders, be arranged with retracing spring 35, and be provided with spring protecting jacket 37.
It is right with the setscrew nut 36 of towing plate 32 connection locations that the second guide bolt 34 is provided with for adjusting the second guide bolt 34, and it is right with the setscrew nut 36 of towing plate 32 connection locations on the first guide bolt 33, to be also provided with for adjusting the first guide bolt 33.Can adjust according to actual installation situation, thus the requirement of reduction setting accuracy.
Use the layer door lock of 161 more models as example take simplified elevator, the distance r that upper end knot is put movable hook 52 centre of grations is 30mm, and movable hook 52 need to clockwise rotate more than 13 ° and just can make movable hook 52 depart from stay hook 51.The manually high 2m of layer door, triangulation chain 40 lock cores are 1325mm apart from bottom surface, the long l of bracing wire that unblanks is 675mm, the maximum horizontal range of triangulation chain 40 lock core center-points and roller 104 circumference is 60mm, lower end knot point is 60mm with the distance of triangulation chain 40 lock core center-points, the spacing of triangulation chain 40 lock core center-points and roller 104 center-points and lower end knot point in the vertical direction is 30mm, reserved loading space rocks distance for 15mm, be loading space in the time of flat bed, the pull bar 10 translation 15mm rear rollers 104 of unblanking contact with loading space lance 60.
Concrete principle is as follows: when loading space is stagnated at non-layer region, towing plate 32 maximal translation are 25mm apart from x, and the actual movement that tie knots a little in the upper end of the bracing wire 20 of now unblanking and tie knots in lower end a little as shown in Figure 3; For convenience of calculating, build the motion equivalent schematic of lower end knot point, as shown in Figure 4.Suppose connection cord variable-length, layer door lock PB161 keeps horizontal stationary, does not rotate, and the actual displacement that now the difference DELTA l long and the long l of former rope of the rope after towing plate 32 translation x is equivalent to upper end knot point in Fig. 3 is
and
can obtain thus movable hook 52 deflection angles
after the concrete numerical value of substitution, can obtain θ is 0.87 °, is less than movable hook 52 and departs from required 13 ° of stay hook 51, and therefore a layer door lock do not opened, and layer door can not be opened.
When loading space is stagnated at this layer region, at towing plate 32 translation 15mm, after roller 104 is touched with loading space lance 60, when towing plate 32 continues translation forward, the also translation thereupon of triangulation chain 40 lock core center-points.Simultaneously, the pull bar 10 of unblanking scrolls up and does clickwise along loading space lance 60 because of roller 104, when towing plate 32 translation 25mm are also towing plate 32 again when translation y=10mm, as shown in Figure 5, the real standard miles of relative movement of the lower end knot point of the bracing wire 20 of unblanking is 10+2y=35mm.Due to the touch points of roller 104 and car lance 60 with lower end knot point about triangulation chain 40 lock core central point, the reality of the lower end knot point of the bracing wire 20 of unblanking vertically move down apart from the actual pan-up of the touch points of roller 104 and car lance 60 apart from the identical a(of being as shown in Figure 5, Figure 6).From Fig. 5 and Pythagorean theorem, (a+30)
2+ (60-y)
2=(60)
2+ (30)
2, solve a and be
and by lower end knot point motion equivalent schematic, Fig. 6 can obtain, and the equivalence value of upper end knot point actual displacement is
thereby can obtain the computing formula of movable hook 52 deflection angle θ '
substitution numerical calculation obtains θ '=28.7 °, now opened layer door lock.
Calculate in the case below, while just having opened layer door lock, the critical value of towing plate translation.Under critical condition, 13 ° of movable hook 52 deflections, meet equation
after the concrete numerical value of substitution, separate aforesaid equation and can obtain y'=3.65, towing plate 32 can be opened a layer door lock after translation 15+y'=18.65mm, and wherein, y' is that towing plate 32 touches the rear continuation of car lance 60 distance of translation forward at roller 104;
for roller 104 and the displacement of the touch points in the vertical direction of car lance 60.Hence one can see that, adopts this unlocking apparatus, even if there is installation error, but as long as installation error is no more than 24.3% and all can realizes securely unlocking, thereby significantly reduce the requirement to setting accuracy.
Cw in specification sheets refers to the cw of Fig. 1.The concrete installation requirement of other layer of door lock and this unlocking apparatus can do accommodation according to above-mentioned principle.
Claims (4)
1. a manually securely unlocking device for layer door of simplified elevator, is characterized in that: the triangulation chain (40) the movable part that comprise the bracing wire of unblanking (20) that the pull bar of unblanking (10), one end be connected with layer door lock movable hook (52) tail end, is located at the lateral traction response agency that can pull from manual layer of outer side of door in the middle part of manual layer door and is located at lateral traction response agency; The first cross bar part (102) that the described pull bar of unblanking (10) comprises the vertical connecting bridge (101) fixing with triangulation chain (40) lock core, is connected with the upper end of vertical connecting bridge (101) and extends to loading space lance (60) direction and the second cross bar part (103) that is connected with the lower end of vertical connecting bridge (101) and oppositely extends to loading space lance (60), the end of described the second cross bar part (103) is connected with one end of the bracing wire of unblanking (20), and the end of described the first cross bar part (102) is articulated with roller (104); At the movable part of described lateral traction response agency in loading space lance (60) direction moving process, described roller (104) scrolls up along loading space lance (60) after touching with loading space lance (60), drive the first cross bar part (102) upwards to rotate, the second cross bar part (103) rotates and pulls the bracing wire of unblanking (20) to open a layer door lock.
2. the manually securely unlocking device of layer door of simplified elevator according to claim 1, it is characterized in that: described lateral traction response agency comprises the penetrating framework (31) in the two sides that is fixed on manual layer door, the towing plate (32) that movable distance is 25mm framework (31) in, is provided with two groups of reset assemblies that lead between towing plate (32) and framework (31); Described triangulation chain (40) is located on the movable part of lateral traction response agency and refers to, described triangulation chain (40) is fixing with towing plate (32).
3. the manually securely unlocking device of layer door of simplified elevator according to claim 2, it is characterized in that: described guiding reset assembly comprises the first guide bolt (33) being threaded with towing plate (32) through framework (31) Right Border and passes the second guide bolt (34) that framework (31) left border is threaded with towing plate (32), between described the second adjusting bolt (34) and framework (31) Right Border, is arranged with retracing spring (35).
4. the manually securely unlocking device of layer door of simplified elevator according to claim 3, is characterized in that: it is right with the setscrew nut (36) of towing plate (32) connection location that described the second guide bolt (34) is provided with for adjusting the second guide bolt (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126991.8A CN103896137B (en) | 2014-03-31 | 2014-03-31 | The securely unlocking device of the manual layer door of simplified elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126991.8A CN103896137B (en) | 2014-03-31 | 2014-03-31 | The securely unlocking device of the manual layer door of simplified elevator |
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| Publication Number | Publication Date |
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| CN103896137A true CN103896137A (en) | 2014-07-02 |
| CN103896137B CN103896137B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410126991.8A Active CN103896137B (en) | 2014-03-31 | 2014-03-31 | The securely unlocking device of the manual layer door of simplified elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176604A (en) * | 2014-07-18 | 2014-12-03 | 日立电梯（中国）有限公司 | Elevator door lock structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228269Y2 (en) * | 1971-06-14 | 1977-06-28 | ||
| JPS61124487A (en) * | 1984-11-21 | 1986-06-12 | 株式会社東芝 | Release device for door of elevator platform |
| JP2012218834A (en) * | 2011-04-05 | 2012-11-12 | Mitsubishi Electric Corp | Locking device of elevator landing |
| CN202558434U (en) * | 2012-04-06 | 2012-11-28 | 东南电梯股份有限公司 | Manual door locking device of elevator door |
| CN203889847U (en) * | 2014-03-31 | 2014-10-22 | 宁波市特种设备检验研究院 | Safe unlocking device of manual landing door of simple elevator |
-
2014
- 2014-03-31 CN CN201410126991.8A patent/CN103896137B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228269Y2 (en) * | 1971-06-14 | 1977-06-28 | ||
| JPS61124487A (en) * | 1984-11-21 | 1986-06-12 | 株式会社東芝 | Release device for door of elevator platform |
| JP2012218834A (en) * | 2011-04-05 | 2012-11-12 | Mitsubishi Electric Corp | Locking device of elevator landing |
| CN202558434U (en) * | 2012-04-06 | 2012-11-28 | 东南电梯股份有限公司 | Manual door locking device of elevator door |
| CN203889847U (en) * | 2014-03-31 | 2014-10-22 | 宁波市特种设备检验研究院 | Safe unlocking device of manual landing door of simple elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176604A (en) * | 2014-07-18 | 2014-12-03 | 日立电梯（中国）有限公司 | Elevator door lock structure |
| CN104176604B (en) * | 2014-07-18 | 2016-03-30 | 日立电梯（中国）有限公司 | A kind of door-opened elevator lock construction |
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| Publication number | Publication date |
|---|---|
| CN103896137B (en) | 2015-08-05 |
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