CN206767403U

CN206767403U - A kind of car door knife for elevator

Info

Publication number: CN206767403U
Application number: CN201720429773.0U
Authority: CN
Inventors: 吴波
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-21
Filing date: 2017-04-21
Publication date: 2017-12-19
Anticipated expiration: 2027-04-21

Abstract

A kind of car door knife for elevator is the utility model is related to, including：Substrate with arcuate socket；The quadric chain being made up of upper connecting rod, lower link, left tool arm and right tool arm, upper connecting rod, lower link are articulated in the front upper of substrate and positive bottom respectively；Lock hook assembly；Rocking bar；First drive link and the second drive link, one end of first drive link is articulated on the left end of upper connecting rod, and its other end is by being articulated in the middle part of the second drive link through the power transmission shaft of arcuate socket, the left end of second drive link is articulated in the middle part of rocking bar, and be provided through on its right-hand member arcuate socket and for controlling the pushing member of swivel hook；Torsion spring, it is arranged between rocking bar and the second drive link, or is arranged between upper connecting rod and the second drive link.Car door knife of the present utility model for elevator allows rescuer to be unlocked in onlocking zone by way of promoting entrance hall door, and then can be more convenient, more rapidly save trapped personnel in car.

Description

A kind of car door knife for elevator

Technical field

The utility model belongs to elevator technology field, and in particular to a kind of car door knife for elevator.

Background technology

Taking place frequently for elevator safety accident caused injures and deaths in recent years, and the development of the new safe practice of elevator also starts greatly in industry again Push dynamic, configure the purpose of hall door door knife, be to prevent when car does not arrive at a station, passenger, which thinks voluntarily to take off, enters car, knot Fruit is strayed into empty well road, causes the security incident crashed at hall door in hoistway, and the purpose for configuring car door knife is then in order to anti- Only when car does not arrive at a station, passenger thinks that voluntarily taking off door leaves car, is as a result also strayed into empty well road, causes to crash into hoistway out of car Security incident.At first sight, the safety requirements of car door knife and hall door door knife is essentially the same, in fact not exclusively so.It is true On, the requirement of car door knife is more more complicated than the requirement of hall door door knife, because car door knife has some particular/special requirements, and is opening The requirement locked in region and outside onlocking zone is also different.

Chinese patent CN205222393U discloses a kind of door knife of unilateral floating tool arm.The problem of this knife is in hall door Inconvenience in outer rescue car during trapped personnel, i.e. rescuer only have manual unlocking car door knife to open gate, The situation that trapped personnel in car is saved outside hall door is similar to traditional car door lock.

Utility model content

For problem above, the utility model provides a kind of car door knife for elevator, and rescuer can unlock The car door knife is unlocked in region by way of promoting entrance hall door, and then can be more convenient, more rapidly save in car Trapped personnel.

A kind of car door knife for elevator is the utility model is related to, it includes：Substrate, arc is provided with the top of substrate Shape hole；The quadric chain being made up of upper connecting rod, lower link, left tool arm and right tool arm, in the middle part and lower link of upper connecting rod Portion is articulated in the front upper of substrate and positive bottom respectively；Lock hook assembly, including it is articulated in the swivel hook of the front upper of substrate And hook can be determined with swivel hook hook；Rocking bar, the lower end of rocking bar are articulated in the upper rear portion of substrate；First drive link and second Drive link, one end of the first drive link is articulated on the left end of upper connecting rod, and its other end passes through the power transmission shaft through arcuate socket The middle part of the second drive link is articulated in, the left end of the second drive link is articulated in the middle part of rocking bar, and is provided through arc on its right-hand member Shape hole and for controlling the pushing member of swivel hook；Torsion spring, it is arranged between rocking bar and the second drive link, or the company of being arranged on Between bar and the second drive link.When rocking bar is under external force from left towards during right swing, rocking bar drives the second drive link and first Drive link so that the first drive link drives left tool arm and right tool arm gradually to close by upper connecting rod, but can not make left tool arm and the right side Interval between tool arm reaches default minimum interval, the pushing member on the second drive link is not prevented swivel hook with determining hook phase hook Close；When left tool arm and right tool arm gradually close under external force, the interval between left tool arm and right tool arm progressivelyes reach pre- If minimum interval, upper connecting rod drives the first drive link and the second drive link in the presence of left tool arm and right tool arm, so that second Drive link drives swivel hook disengaging to determine hook by pushing member.

According to the car door knife of the present utility model for elevator, passenger and rested on when car is bottled up in onlocking zone When, rescuer can push directly on entrance hall door, and hall door can drive hall door croquet to promote left tool arm and right tool arm gradually to close, Until the interval between left tool arm and right tool arm progressivelyes reach default minimum interval, during this, upper connecting rod will be in left tool arm With the first drive link and the second drive link are driven in the presence of right tool arm so that the second drive link drives swivel hook by pushing member Hook is determined in disengaging, or makes power transmission shaft drive swivel hook to depart from the presence of the first drive link and the second drive link and determine hook, makes car Door knife performs unlocking action.Compared with prior art, rescuer can be in onlocking zone by way of promoting entrance hall door To make the car door knife unlock, and then it can be more convenient, more rapidly save trapped personnel in car.

Further, determine hook be arranged to allow after it is hooked together with swivel hook swivel hook along left and right directions move one it is default away from From, when rocking bar under external force from it is right moved towards left swing when, rocking bar drives the second drive link and the first drive link so that first passes Lever drives left tool arm and right tool arm gradually to open by upper connecting rod, and such as right tool arm and/or left tool arm are outer in opening process Thing stops and the interval between left tool arm and right tool arm is unable to reach default largest interval, and the second drive link will be by promoting structure Part driving swivel hook, which departs from, determines hook, but such as right tool arm and left tool arm are not all blocked by an external matter in opening process, left tool arm and right knife Interval between arm is up to default largest interval so that it is fixed that the second drive link can not drive swivel hook to depart from by pushing member Hook.

Onlocking zone formula can be rested on according to the car door knife of the present utility model for elevator in car to perform normally Lock, normal unlocking can also be performed in onlocking zone, can also be prevented when car stops non-unlocking district domain because of elevator therefore Hinder and cause unlocking, can also prevent trapped personnel from pushing car door aside by force when car stops non-unlocking district domain and unlock, also Rescuer can be allowed to be stopped by promoting hall door mode to unlock in car when car rests on onlocking zone Allow trapped personnel in onlocking zone by way of pushing car door aside to unlock, onlocking zone can also be rested in car When allow rescuer to be unlocked by way of promoting and unlocking push pedal.

A kind of car door knife for elevator is the utility model is related to, it includes：Substrate, arc is provided with the top of substrate Shape hole；The quadric chain being made up of upper connecting rod, lower link, left tool arm and right tool arm, in the middle part and lower link of upper connecting rod Portion is articulated in the front upper of substrate and positive bottom respectively；Lock hook assembly, including it is articulated in the swivel hook of the front upper of substrate And hook can be determined with swivel hook hook, it is configured to allow swivel hook to move along left and right directions when it is hooked together with swivel hook after wherein determining hook Move a pre-determined distance；Rocking bar, the lower end of rocking bar are articulated in the upper rear portion of substrate；First drive link and the second drive link, the One end of one drive link is articulated on the left end of upper connecting rod, and its other end is articulated in second by the power transmission shaft through arcuate socket The left end of drive link, the right-hand member of the second drive link are articulated in the middle part of rocking bar, and power transmission shaft can be slided and driven in arcuate socket Swivel hook；Torsion spring, it is arranged between rocking bar and the second drive link.When rocking bar is under external force from left towards during right swing, rocking bar drives Dynamic second drive link and the first drive link so that the first drive link drives left tool arm and right tool arm gradually to close by upper connecting rod, But the interval between left tool arm and right tool arm can not be made to reach default minimum interval, power transmission shaft is not prevented swivel hook with determining hook phase hook Close.When left tool arm and right tool arm gradually close under external force, the interval between left tool arm and right tool arm progressivelyes reach pre- If minimum interval, upper connecting rod drives the first drive link and the second drive link in the presence of left tool arm and right tool arm, so that transmission Axle drives swivel hook disengaging to determine hook in the presence of the first drive link and the second drive link.When rocking bar is under external force from right towards a left side During swing, rocking bar drives the second drive link and the first drive link so that the first drive link drives left tool arm and the right side by upper connecting rod Tool arm gradually opens, and such as right tool arm and/or left tool arm are blocked by an external matter in opening process and made between left tool arm and right tool arm Interval be unable to reach default largest interval, power transmission shaft can then drive swivel hook to depart from determine hook, but such as right tool arm and left tool arm exist All it is not blocked by an external matter in opening process, the interval between left tool arm and right tool arm is up to default largest interval, and power transmission shaft is then Swivel hook can not be driven to depart from and determine hook.

According to the car door knife of the present utility model for elevator, passenger and rested on when car is bottled up in onlocking zone When, rescuer can push directly on entrance hall door, and hall door can drive hall door croquet to promote left tool arm and right tool arm gradually to close, Until the interval between left tool arm and right tool arm progressivelyes reach default minimum interval, during this, upper connecting rod will be in left tool arm With the first drive link and the second drive link are driven in the presence of right tool arm so that power transmission shaft is in the first drive link and the second drive link In the presence of drive swivel hook depart from determine hook, make car door knife execution unlocking action.Compared with prior art, rescuer can be The car door knife is unlocked by way of promoting entrance hall door in onlocking zone, and then can be more convenient, more rapidly save sedan-chair Trapped personnel in railway carriage or compartment.

In addition, the structure of the car door knife of the present utility model for elevator is simple, and it is easily manufactured, it is safe and reliable, Popularization and application convenient to carry out.

Brief description of the drawings

Describe the utility model in detail below in conjunction with the accompanying drawings.Pass through the detailed description made in conjunction with the following drawings, this practicality New above-mentioned or otherwise content will be apparent and be easier to understand.In accompanying drawing：

Fig. 1 is the front view according to the car door knife for elevator of the utility model embodiment one；

Fig. 2 is the rearview according to the car door knife for elevator of the utility model embodiment one；

Fig. 3 is the explosive view according to the car door knife for elevator of the utility model embodiment one；

Fig. 4-Figure 10 respectively illustrates the different working condition of the car door knife shown in Fig. 1；

Figure 11 is the front view according to the car door knife for elevator of the utility model embodiment two；

Figure 12 is the rearview according to the car door knife for elevator of the utility model embodiment two；

Figure 13 is the stereogram according to the car door knife for elevator of the utility model embodiment two.

Embodiment

Describe specific embodiment of the present utility model in detail below in conjunction with the accompanying drawings.

Fig. 1 is the front view according to the car door knife for elevator of the utility model embodiment one；Fig. 2 is according to this reality With the rearview of the car door knife for elevator of new embodiment one；Fig. 3 is used for according to the utility model embodiment one The stereogram of the car door knife of elevator.As shown in Fig. 1 to Fig. 3, the car door knife 10 includes substrate 1 and installed on substrate 1 Quadric chain 2.Arcuate socket 1a is provided with the top of substrate 1.The quadric chain 2 is by upper connecting rod 21, lower link 22, left knife Arm 23 and right tool arm 24 are formed, i.e., upper connecting rod 21, left tool arm 23, lower link 22 and right tool arm 24 are with articulated manner structure successively from beginning to end Into the quadric chain 2 of parallelogram.Wherein, the middle part of upper connecting rod 21 and the middle part of lower link 22 are articulated in substrate 1 respectively Front upper and positive bottom, the i.e. middle part of upper connecting rod 21 be articulated in the front upper of substrate 1, and the middle part pivot of lower link 22 It is connected on the positive bottom of substrate 1.The quadric chain 2 is used to be engaged with hall door croquet, to control whether car door knife 10 is opened Lock.

The car door knife 10 also includes lock hook assembly 3.The lock hook assembly 3 includes being articulated in turning for the front upper of substrate 1 Hook 31 and hook 32 can be determined with swivel hook 31 hook.Saved oneself in order to facilitate trapped personnel in car, this is determined hook 32 and constructed Cheng Dangqi allows swivel hook 31 to move a pre-determined distance along left and right directions after being hooked together with swivel hook 31.Pre-determined distance is more than left tool arm Default largest interval between 23 and right tool arm 24.Pre-determined distance can be determined according to specific needs, such as≤50mm.At one not In the embodiment shown, determining hook 32 has waist-shaped hole, and swivel hook 31 is with dead bolt that can be into and out, the width of waist-shaped hole Subtract total≤50mm of the width of dead bolt so that swivel hook 31 at most determines hook 32 along left and right directions relatively with determining after hook 32 hooks together A mobile foregoing total.For the sake of assurance, the car door knife 10 also includes being articulated in the front of substrate 1 and can promote swivel hook 31 depart from the unblock push pedal 7 for determining hook 32.

The car door knife 10 also includes rocking bar 41 and synchronous clamping 42.The lower end of rocking bar 41 is articulated on the back side of substrate 1 Portion.Synchronous clamping 42 is rotatably arranged on the upper end of rocking bar 41, and synchronous clamping 42 is used to rocking bar 41 with timing belt being connected, and makes Obtaining timing belt can be while controlling the unlocking of car door knife 10 and locking, moreover it is possible to drives car door by car door knife 10 Open and close.Rocking bar 41 can both be swung from left to right in the presence of synchronous clamping 42, can also right-to-left swing.For The amplitude of fluctuation of effective limitation rocking bar 41 and improve its service life, the car door knife 10 may also include the back of the body located at substrate 1 The left stop 81 on face top and right stop 82, left stop 81 and right stop 82 are used for the amplitudes of fluctuation for limiting rocking bar 41.Preferably, The car door knife 10 also includes be placed on right stop 82 door knife latch hook 9 with can turning.

The car door knife 10 also includes the first drive link 51 and the second drive link 52.In order to smooth out the fortune of the first drive link 51 Dynamic, the shape of the first drive link 51 is preferably arc strip.One end of first drive link 51 is articulated on the left end of upper connecting rod 21, And its other end is by being articulated in the middle part of the second drive link 52 through arcuate socket 1a power transmission shaft 53.A left side for second drive link 52 End is articulated in the middle part of rocking bar 41, and be provided through on its right-hand member arcuate socket 1a's and for controlling the pushing member of swivel hook 31 54.Frictional resistance caused by swivel hook 31 is being promoted in order to reduce pushing member 54, pushing member 54 includes bearing pin 541 and bearing 542, one end of bearing pin 541 is located at the right-hand member of the second drive link 52, and its other end is installed for promoting after passing through arcuate socket 1a The bearing 542 of swivel hook 31, bearing 542 rely on low friction characteristic, significantly pushing member 54 can be produced when promoting swivel hook 31 Frictional resistance.

The car door knife 10 also includes torsion spring 6, and torsion spring 6 is arranged between the drive link 52 of rocking bar 41 and second, or torsion spring 6 It is arranged between the drive link 52 of upper connecting rod 21 and second.When torsion spring 6 is arranged between the drive link 52 of rocking bar 41 and second, rocking bar 41 can be by torsion spring 6 with the second drive link 52 so that the motion between the drive link 52 of rocking bar 41 and second more smoothes out, and to the greatest extent may be used Rocking bar 41 is avoided the occurrence of to move and 52 no motion of situation of the second drive link energy.When torsion spring 6 is arranged on upper connecting rod 21 and second When between drive link 52, the driving link in both drive links 52 of upper connecting rod 21 and second can be driven driven in the two by torsion spring 6 Part moves so that the motion between the drive link 52 of upper connecting rod 21 and second more smoothes out, and then is avoided as much as occurring actively Part moves and the no motion of situation of driven member.

In the present embodiment, the car door knife 10 also includes the upper limit projection 41a being located on rocking bar 41 and lower limit is convex 41b is played, the left end of the second drive link 52 is articulated in rocking bar again after through upper limit projection 41a and lower limit projection 41b 41 middle part.Upper limit projection 41a and lower limit projection 41b is used to limit the relative fortune between the drive link 52 of rocking bar 41 and second Dynamic stroke, ensure that car door knife 10 smoothly stably can unlock and lock.

Fig. 4-Figure 10 respectively illustrates the different working condition of the car door knife 10 shown in Fig. 1, and makes introductions all round below Each working condition.

As shown in figure 4, when car rests on onlocking zone and normally locked, car door machine is driven by timing belt Synchronous clamping 42, synchronous clamping 42 drive rocking bar 41 to force rocking bar 41 to drive the second drive link 52 and first from left towards right swing Drive link 51, so that the first drive link 51 drives left tool arm 23 and right tool arm 24 gradually to close by upper connecting rod 21, but it can not make Interval between left tool arm 23 and right tool arm 24 reaches default minimum interval, the pushing member on the second drive link 52 is not prevented With determining the hook of hook 32, then swivel hook 31 can hook together swivel hook 31 with determining hook 32 under gravity, complete the car door knife 10 Lock action.

As shown in figure 5, when car rests on onlocking zone and normally unlocked, car door machine is driven by timing belt Synchronous clamping 42, synchronous clamping 42 drive rocking bar 41 to be moved from right towards left swing, the driving of rocking bar 41 second drive link 52 and the first transmission Bar 51 so that the first drive link 51 drives left tool arm 23 and right tool arm 24 gradually to open by upper connecting rod 21, because car is being opened Lock region is relative with entrance hall, and right tool arm 24 and left tool arm 23 can be stopped by hall door croquet in opening process and make the left He of tool arm 23 Interval between right tool arm 24 is unable to reach default largest interval so that the second drive link 52 will be driven by pushing member 54 to be turned Hook 31, which departs from, determines hook 32, the car door knife 10 is completed unlocking action.

As shown in fig. 6, when car stops non-unlocking district domain, and because elevator faults cause the machine mistake to unlock when, car door Machine drives synchronous clamping 42 by timing belt, and synchronous clamping 42 drives rocking bar 41 to be moved from right towards left swing, and rocking bar 41 drives second to pass The drive link 51 of lever 52 and first so that the first drive link 51 drives left tool arm 23 and right tool arm 24 gradually to open by upper connecting rod 21 Open, because car is not relative with entrance hall in non-unlocking district domain, right tool arm 24 and left tool arm 23 are in opening process not by hall door Croquet stops that the interval between left tool arm 23 and right tool arm 24 can smoothly reach default largest interval so that the second drive link 52 By pushing member 54 swivel hook 31 can not be driven to depart from and determine hook 32, car door knife 10 can not perform unlocking action, it is possible thereby to have Effect ground ensures the personal security in car.

As shown in fig. 7, when car stop non-unlocking district domain, and personnel are intended to make car door by pushing car door aside in car When knife 10 performs unlocking action, personnel can push two fan car doors aside one pre-determined distance (such as≤50mm) in car, but by Not relative with entrance hall in non-unlocking district domain in car, hall door croquet can not promote left tool arm 23 and right tool arm 24 gradually to close, The expansion action between right tool arm 24 and left tool arm 23 can not be stopped, therefore car door knife 10 can not perform unlocking action at all, It is possible thereby to effectively ensure the personal security in car.

As shown in figure 8, when car rests on onlocking zone and can not normally unlocked, rescuer can be by promoting hall door To make car door knife 10 perform unlocking action, when rescuer promotes hall door, hall door croquet can promote right tool arm 24 simultaneously Left tool arm 23 and right tool arm 24 is gradually closed, promote the interval between left tool arm 23 and right tool arm 24 to progressively reach default minimum Interval, upper connecting rod 21 drive the first drive link 51 and the second drive link 52 in the presence of left tool arm 23 and right tool arm 24, so that Second drive link 52 drives swivel hook 31 to depart from determine hook 32 by pushing member 54, the execution unlocking action of car door knife 10, then by Oppressive member can walk out car safely.If as shown in figure 9, cause hall door croquet can not promote the left He of tool arm 23 because of fortuitous event Right tool arm 24 gradually closes, and rescuer can also promote unblock push pedal 7, and it is fixed that unblock push pedal 7 can promote swivel hook 31 to be allowed to disengaging Hook 32, so that car door knife 10 performs unlocking action, then trapped personnel can walk out car safely.

As shown in Figure 10, when car rests on onlocking zone and can not normally unlocked, trapped personnel can pass through in car Car door is pushed aside to make car door knife 10 perform unlocking action, i.e., when trapped personnel pushs car door aside, hall door croquet will promote Left tool arm 23 and left tool arm 23 and right tool arm 24 is gradually closed, and promote the interval between left tool arm 23 and right tool arm 24 gradual Reach default minimum interval, force upper connecting rod 21 to drive the first drive link 51 and in the presence of left tool arm 23 and right tool arm 24 Two drive links 52, make the second drive link 52 drive swivel hook 31 to depart from by pushing member 54 and determine hook 32, car door knife 10 is performed and opened Lock acts, and then trapped personnel can walk out car safely.

That is, unlocking area can be rested in car according to the car door knife 10 for elevator of the utility model two Domain formula is performed and normally locked, and normal unlocking can also be performed in onlocking zone, can also be when car stops non-unlocking district domain Prevention causes unlocking because of elevator faults, can also prevent trapped personnel from pushing car aside by force when car stops non-unlocking district domain Door and unlock, rescuer can also be allowed when car rests on onlocking zone by promoting hall door mode to unlock, may be used also By when car rests on onlocking zone allow trapped personnel by pushing car door aside in a manner of to unlock, can also stop in car Allow rescuer when staying in onlocking zone by way of promoting and unlocking push pedal to unlock.Meanwhile according to of the present utility model Car door knife for elevator complies fully with national standard 7588-2003《Elevator manufactures and safety standard》No. 1 amendment It is required that.

Figure 11 is the front view according to the car door knife for elevator of the utility model embodiment two；Figure 12 is according to this The rearview of the car door knife for elevator of utility model embodiment two；Figure 13 is the use according to the utility model embodiment two In the stereogram of the car door knife of elevator.As shown in Figure 11 to Figure 13, the car door knife 10 includes substrate 1 and installed in substrate 1 On quadric chain 2.Arcuate socket 1a is provided with the top of substrate 1.The quadric chain 2 by upper connecting rod 21, lower link 22, Left tool arm 23 and right tool arm 24 are formed, i.e., upper connecting rod 21, left tool arm 23, lower link 22 and right tool arm 24 are with pivot joint side successively from beginning to end Formula forms the quadric chain 2 of parallelogram.Wherein, the middle part of upper connecting rod 21 and the middle part of lower link 22 are articulated in base respectively The front upper of plate 1 and positive bottom, the i.e. middle part of upper connecting rod 21 are articulated in the front upper of substrate 1, and in lower link 22 Portion is articulated in the positive bottom of substrate 1.The quadric chain 2 is used to be engaged with hall door croquet, to control car door knife 10 to be No unlocking.

The car door knife 10 also includes lock hook assembly.The lock hook assembly includes the swivel hook for being articulated in the front upper of substrate 1 31 and hook (not shown) can be determined with swivel hook 31 hook.In order to realize the self-rescue function of trapped personnel in car, this determines hook It is configured to allow swivel hook 31 to move a pre-determined distance along left and right directions after it is hooked together with swivel hook 31.Pre-determined distance can basis It is specific to need to determine, such as≤50mm.In a unshowned embodiment, determining hitcher has waist-shaped hole, and swivel hook 31 has energy Enough into and out dead bolts, the width of waist-shaped hole subtract total≤50mm of the width of dead bolt so that swivel hook 31 is with determining hook hook A foregoing total at most is moved along left and right directions relative to determining hook after conjunction.For the sake of assurance, the car door knife 10 also includes pivot It is connected on the front of substrate 1 and swivel hook 31 can be promoted to depart from the unblock push pedal 7 for determining hook.

The car door knife 10 also includes rocking bar 41 and synchronous clamping (not shown).The lower end of rocking bar 41 is articulated in substrate 1 Upper rear portion.Synchronous clamping is rotatably arranged on the upper end of rocking bar 41, and synchronous clamping is used to rocking bar 41 with timing belt being connected, Timing belt enable while controlling the unlocking of car door knife 10 and locking, moreover it is possible to which car is driven by car door knife 10 Door opens and closes.Rocking bar 41 can both be swung from left to right in the presence of synchronous clamping, can also right-to-left swing.For The amplitude of fluctuation of effective limitation rocking bar 41 and improve its service life, the car door knife 10 may also include the back of the body located at substrate 1 The left stop 81 on face top and right stop 82, left stop 81 and right stop 82 are used for the amplitudes of fluctuation for limiting rocking bar 41.Preferably, The car door knife 10 also includes be placed on right stop 82 door knife latch hook (not shown) with can turning.

The car door knife 10 also includes the first drive link 51 and the second drive link 52, and is arranged on the biography of rocking bar 41 and second Torsion spring 6 between lever 52 (see Figure 13).One end of first drive link 51 is articulated on the left end of upper connecting rod 21, and its other end By being articulated in the left end of the second drive link 52 through arcuate socket 1a power transmission shaft 53, the right-hand member of the second drive link 52, which is articulated in, to be shaken The middle part of bar 41, power transmission shaft 53 can slide in arcuate socket 1a and drive swivel hook 31.Wherein, rocking bar 41 can pass through the band of torsion spring 6 With the second drive link 52 so that the motion between the drive link 52 of rocking bar 41 and second more smoothes out, and is avoided as much as shaking Bar 41 moves and 52 no motion of situation of the second drive link.

From left towards during right swing under rocking bar 41 uses (such as timing belt) in outer masterpiece, rocking bar 41 drives the second drive link 52 With the first drive link 51 so that the first drive link 51 drives left tool arm 23 and right tool arm 224 gradually to close by upper connecting rod 21, but The interval between left tool arm 23 and right tool arm 24 can not be made to reach default minimum interval, power transmission shaft 53 is not prevented swivel hook 31 with determining Hook hook.

When gradually closure under left tool arm 13 and right tool arm 14 use (such as entrance hall croquet) in outer masterpiece, left tool arm 13 and the right side Interval between tool arm 14 progressivelyes reach default minimum interval, and upper connecting rod 21 drives in the presence of left tool arm 13 and right tool arm 14 First drive link 51 and the second drive link 52, so that power transmission shaft 53 drives in the presence of the first drive link 51 and the second drive link 52 Turn hook 31, which departs from, determines hook.

When rocking bar 41 outer masterpiece with (such as timing belt) from it is right moved towards left swing when, rocking bar 41 drive the second drive link 51 With the first drive link 51 so that the first drive link 51 drives left tool arm 13 and right tool arm 14 gradually to open by upper connecting rod 21, such as Right tool arm 13 and/or left tool arm 14 are stopped by foreign object (such as entrance hall croquet) in opening process and make left tool arm 13 and right tool arm Interval between 14 is unable to reach default largest interval, and power transmission shaft 53 can then drive the disengaging of swivel hook 31 to determine hook, but such as right tool arm 13 and left tool arm 14 be not all blocked by an external matter in opening process (such as entrance hall croquet), between left tool arm 13 and right tool arm 14 Interval is up to default largest interval, and power transmission shaft 53 can not then drive the disengaging of swivel hook 31 to determine hook.

Onlocking zone formula can be rested on according to the car door knife 10 for elevator of the utility model two in car to perform Normally lock, normal unlocking can also be performed in onlocking zone, can also be prevented when car stops non-unlocking district domain because of electricity Terraced failure and cause unlocking, can also prevent trapped personnel from pushing car door aside by force when car stops non-unlocking district domain and open Lock, rescuer can also be allowed when car rests on onlocking zone by promoting hall door mode to unlock, can also be in sedan-chair When railway carriage or compartment rests on onlocking zone allow trapped personnel by way of pushing car door aside to unlock, can also be rested on open in car Allow rescuer when locking region by way of promoting and unlocking push pedal to unlock.Meanwhile it is used for electricity according to of the present utility model The car door knife of ladder complies fully with national standard 7588-2003《Elevator manufactures and safety standard》The requirement of No. 1 amendment.

In the description of the present application, it is to be understood that the side of the instruction such as term " on ", " under ", "left", "right", " rear " Position or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplification is retouched State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation, Therefore it is not intended that to limitation of the present utility model.

In this application, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint phase To importance or the implicit quantity for indicating indicated technical characteristic.In the description of the invention, " multiple " are meant that two More than individual, unless otherwise specifically defined.

In this application, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

Above-mentioned embodiment/embodiment is specific embodiment of the present utility model, for illustrating this reality It is explanatory and exemplary with new design, should not be construed as to the utility model embodiment and the utility model The limitation of scope.In addition to the embodiment recorded herein, those skilled in the art can also be based on the application claims and say Bright book disclosure of that is included using the reality to recording herein using obvious other technical schemes, these technical schemes The technical scheme for making any obvious substitutions and modifications of example is applied, all within the scope of protection of the utility model.Especially It is, as long as structural hazard is not present, the every technical characteristic being previously mentioned in each embodiment can combine in any way Come.The utility model is not limited to specific embodiment disclosed herein, but the institute including falling within the scope of the appended claims There is technical scheme.

Claims

A kind of 1. car door knife for elevator, it is characterised in that including：

Substrate, arcuate socket is provided with the top of the substrate；

The quadric chain being made up of upper connecting rod, lower link, left tool arm and right tool arm, the middle part of the upper connecting rod and the lower company The middle part of bar is articulated in the front upper of the substrate and positive bottom respectively；

Lock hook assembly, including be articulated in the swivel hook of the front upper of the substrate and hook can be determined with the swivel hook hook；

Rocking bar, the lower end of the rocking bar are articulated in the upper rear portion of the substrate；

First drive link and the second drive link, one end of first drive link are articulated on the left end of the upper connecting rod, and its The other end is by being articulated in the middle part of second drive link, a left side for second drive link through the power transmission shaft of the arcuate socket End is articulated in the middle part of the rocking bar, and be provided through on its right-hand member the arcuate socket and for controlling the promotion of the swivel hook Component；

Torsion spring, it is arranged between the rocking bar and the second drive link, or is arranged between the upper connecting rod and the second drive link；

When the rocking bar is under external force from left towards during right swing, the rocking bar drives second drive link and the first transmission Bar so that first drive link drives the left tool arm and right tool arm gradually to close by the upper connecting rod, but can not make institute State the interval between left tool arm and right tool arm and reach default minimum interval, the pushing member on second drive link is not prevented The swivel hook is with determining hook hook；

When the left tool arm and right tool arm gradually close under external force, interval between the left tool arm and right tool arm by Gradually reach default minimum interval, the upper connecting rod driven in the presence of the left tool arm and right tool arm first drive link and Second drive link, so that second drive link drives the swivel hook disengaging is described to determine hook by the pushing member.
2. car door knife according to claim 1, it is characterised in that described to determine hook and be arranged to when it is hooked together with the swivel hook After allow the swivel hook to move a pre-determined distance along left and right directions, when the rocking bar moves from right towards left swing under external force When, the rocking bar drives second drive link and the first drive link so that first drive link is driven by the upper connecting rod The left tool arm and right tool arm is moved gradually to open, such as described right tool arm and/or left tool arm be blocked by an external matter in opening process and The interval between the left tool arm and right tool arm is set to be unable to reach default largest interval, second drive link will be pushed away by described Swivel hook disengaging described in dynamic member drives is described to determine hook, but as the right tool arm and left tool arm are not all hindered in opening process by foreign object Gear, the interval between the left tool arm and right tool arm are up to default largest interval so that second drive link can not pass through The pushing member drives the swivel hook disengaging is described to determine hook.
3. car door knife according to claim 1 or 2, it is characterised in that also include the upper limit being located on shown rocking bar Raised and lower limit is raised, the left end of second drive link through the upper limit it is raised lower limit projection after again It is articulated in the middle part of the rocking bar.
4. car door knife according to claim 1 or 2, it is characterised in that also include be articulated in the substrate front and The swivel hook can be driven to depart from the unblock push pedal for determining hook.
5. car door knife according to claim 1 or 2, it is characterised in that also include being rotatably arranged at the rocking bar Synchronous clamping on upper end.
6. car door knife according to claim 1 or 2, it is characterised in that also include the upper rear portion located at the substrate And for limit the rocking bar amplitude of fluctuation left stop and right stop.
7. car door knife according to claim 6, it is characterised in that also include be placed on right stop door knife with can turning Latch hook.
8. car door knife according to claim 1 or 2, it is characterised in that the pushing member includes bearing pin and bearing, pin One end of axle is located at the right-hand member of second drive link, and its other end is installed for promoting described turn after passing through the arcuate socket The bearing of hook.
9. car door knife according to claim 1 or 2, it is characterised in that the shape of first drive link is arc strip Shape.
A kind of 10. car door knife for elevator, it is characterised in that including：

Substrate, arcuate socket is provided with the top of the substrate；

The quadric chain being made up of upper connecting rod, lower link, left tool arm and right tool arm, the middle part of the upper connecting rod and the lower company The middle part of bar is articulated in the front upper of the substrate and positive bottom respectively；

Lock hook assembly, including be articulated in the swivel hook of the front upper of the substrate and hook can be determined with the swivel hook hook, Wherein it is described determine hook be configured to allow after it is hooked together with the swivel hook swivel hook along left and right directions move one it is default away from From；

Rocking bar, the lower end of the rocking bar are articulated in the upper rear portion of the substrate；

First drive link and the second drive link, one end of first drive link are articulated on the left end of the upper connecting rod, and its The other end is by being articulated in the left end of second drive link, the right side of second drive link through the power transmission shaft of the arcuate socket End is articulated in the middle part of the rocking bar, and the power transmission shaft can slide in the arcuate socket and drive the swivel hook；

Torsion spring, it is arranged between the rocking bar and the second drive link；

When the rocking bar is under external force from left towards during right swing, the rocking bar drives second drive link and the first transmission Bar so that first drive link drives the left tool arm and right tool arm gradually to close by the upper connecting rod, but can not make institute State the interval between left tool arm and right tool arm and reach default minimum interval, make the power transmission shaft do not prevent the swivel hook with it is described fixed Hook hook；

When the left tool arm and right tool arm gradually close under external force, interval between the left tool arm and right tool arm by Gradually reach default minimum interval, the upper connecting rod driven in the presence of the left tool arm and right tool arm first drive link and Second drive link, determine so that the power transmission shaft drives swivel hook to depart from the presence of first drive link and the second drive link Hook；

When the rocking bar under external force from it is right moved towards left swing when, the rocking bar drives second drive link and the first transmission Bar so that first drive link drives the left tool arm and right tool arm gradually to open by the upper connecting rod, such as described right knife Arm and/or left tool arm are blocked by an external matter in opening process and to be unable to reach the interval between the left tool arm and right tool arm pre- If largest interval, the power transmission shaft can then drive the swivel hook disengaging is described to determine hook, but as the right tool arm and left tool arm exist All it is not blocked by an external matter in opening process, the interval between the left tool arm and right tool arm is up to default largest interval, described Power transmission shaft can not then drive the swivel hook disengaging is described to determine hook.