CN101549825A - Elevator cage door lock - Google Patents

Elevator cage door lock Download PDF

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Publication number
CN101549825A
CN101549825A CNA2009100391964A CN200910039196A CN101549825A CN 101549825 A CN101549825 A CN 101549825A CN A2009100391964 A CNA2009100391964 A CN A2009100391964A CN 200910039196 A CN200910039196 A CN 200910039196A CN 101549825 A CN101549825 A CN 101549825A
Authority
CN
China
Prior art keywords
latch hook
lock
door
slide block
latching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2009100391964A
Other languages
Chinese (zh)
Inventor
谭平西
周国强
尹建峰
何自立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG WINONE ELEVATOR CO Ltd
Original Assignee
GUANGDONG WINONE ELEVATOR CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUANGDONG WINONE ELEVATOR CO Ltd filed Critical GUANGDONG WINONE ELEVATOR CO Ltd
Priority to CNA2009100391964A priority Critical patent/CN101549825A/en
Publication of CN101549825A publication Critical patent/CN101549825A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses an elevator cage door lock including latch hook, lock block, open knife, latching system, crossed spring, roller, bearings, guide peg, bush, breakback contact, moving contact, longitudinal spring, which is characterized in that the latch hook is fixed onto the link slide block via bearings, the link slide block is fixed onto the bush bearings which is fixed on to the lock block, end of the guide peg extends out the lock block, the latching system with a hanging mechanism for the latch hook is mounted onto suspending board of the cage door, the crossed spring is sleeve mounted and fixed onto the guide peg and being clamped between the link slide block and lock block, the roller is surface mounted onto end flank of the latch hook, the electric breakback contact lies on the lock block and the electric moving contacts lies on the latch hook, the longitudinal spring being clamped right above the latch hook. the present invention is provided with excellent advantages of safety, smooth and steady operation, wear-resistant, accurate and reliable, which can be widely used in various elevators.

Description

A kind of elevator cage door lock
Technical field
The invention belongs to the elevator field, relate to elevator car door system, specifically, relate to a kind of elevator cage door lock that ensures passenger safety.
Background technology
In order to ensure passenger's safety, GB7588-2003 " elevator manufacturing with safety standard is installed ", the 11.2.1 clause regulation: elevator hoistways inside face and car sill, the horizontal throw at the edge, nearest doorway of car door framework or sliding door should be greater than 0.15m.The above-mentioned spacing that provides: a) rise to 0.20m, it highly is not more than 0.50m; B) for the cargo lift that adopts vertically sliding door, this spacing rises to 0.20m in whole stroke; C) if car be equipped with mechanical interlocking the door and can only floor door unblank the district in open, except the described situation of 7.7.2.2, the locking of gate should be automatically depended in the operation of elevator.And gate locking must be confirmed by the electric safety device that meets the 14.1.2 requirement.Then above-mentioned spacing is unrestricted.
When making this distance surpass 150mm owing to the reason of field condition and product structure (particularly under the situation that car connects), prior art solutions mainly contains: 1. between two-layer door, backplate is installed so that the distance between car door and the backplate less than 150mm.2. mechanical lock is installed on car door, a door cutter is installed on layer door, but the lock roller when cage operation with every layer of door cutter collision, operational effect difference and because electrical contact disconnects when collision need be come the short circuit electrical contact at another flat bed inductor of sedan-chair top installation.3. mechanical lock is installed on car door, is opened the door by electromagnet during flat bed, just can open the door but when elevator faults is rescued, need on the personnel sedan-chair to back down lock.
Summary of the invention
At the weak point of current techniques, a kind of new elevator cage door lock design plan of the special proposition of the present invention, it can not only address the deficiencies of the prior art, and also has other many useful effects.
A kind of elevator cage door lock, be installed in bank on the gate, comprise latch hook 1, slide block 3, lock body seat 6, the cutter 7 that opens the door, latching system 8, crossed strip 9, roller 10, it also comprises bearing 2, pilot bar 4, lining 5, break back contact 11, moving contact 12, longitudinal spring 13, and wherein: latch hook 1 is fixed on the slide block 3 by bearing 2; Slide block 3 is fixed on the described pilot bar 4, and pilot bar 4 is by lining 5 supportings, and lining 5 is fixed on the lock body seat 6; The tail end of pilot bar 4 stretches out lock body seat 6; The cutter 7 that opens the door is installed in whenever layer by layer door and goes up bank, and latching system 8 is installed on the car door link plate, has with latch hook 1 is complementary to collude the on-hook structure; Crossed strip 9 suits also are fixed on the pilot bar 4, and are installed between slide block 3 and the lock body seat 6; Roller 10 is mounted on the tail end side of latch hook 1; Electric break back contact 11 is on lock body seat 6, and electro-pneumatic contact 12 is on latch hook 1; Longitudinal spring 13 be installed on described latch hook 1 directly over.
Longitudinal spring 13 in the said structure is that latch hook 1 colludes one of actuating unit when hanging downwards, concrete method to set up has: the lower end of longitudinal spring 13 or be fixed on the top of described latch hook 1, or touch with the top of latch hook 1 and do not captive joint, the upper end of longitudinal spring 13 is fixed on the distance position of described latch hook 1 top certain altitude by fastening device, and the mode that this concrete fastening device can select screw rod to add nut fixes.
Latch hook 1 in the said structure has downward projection, described latching system 8 has projection upwards, when the two is in when colluding the extension state, when promptly the part protruding upward of the downward projection of latch hook 1 and latching system 8 was coincide, the present invention was in locking states; Unclamp when colluding the extension state when the two, the present invention is in release position.
Pilot bar 4 in the said structure slides with suit and the flexible of crossed strip 9 fixed thereon, so the slide block 3 that is fixed on the pilot bar 4 also links, slide block 3 and pilot bar 4 sliding strokes are by 6 restrictions of lock body seat.Pilot bar 4 is more than 2 or 2, from easy, generally can be set to 2, both can ensure slide block 3 when sliding steadily, saving in material again, but from the principle, the pilot bar more than 2 also can be finished the object of the invention.The lining 5 of supporting pilot bar 4 is copper sheathing or nylon jacket etc., and the design goal of lining 5 is in order to reduce the resistance in pilot bar 4 sliding processes, simultaneously, to need to possess cooresponding anti-wear again.
Working process of the present invention is: when car is in non-leveling zone and opens car door, latching system 8 is along with the car door link plate moves to opening direction, pilot bar 4 and slide block 3 because of spring 9 (when car door is in closed condition, because the effect spring of latching system 8 is in confined state) effect follow latching system 8 and move certain stroke, restriction because of lock body seat 6, the mobile of slide block 3 is prevented from, at this moment, because latch hook 1 colludes the extension effect with latching system 8, the motion of car door link plate is mechanically stoped and can not be opened.When car is in leveling zone and opens car door, along with the car door link plate moves to opening direction, pilot bar 4 and slide block 3 are followed latching system 8 because of the effect of spring 9 and are moved certain stroke, when the roller 10 of latch hook 1 trailing flank and the cutter 7 that opens the door are collided when being prevented from, roller 10 produced torques with respect to bearing 2 and latch hook 1 was rotated to an angle make latching system 8 break away from the constraint of latch hooks 1 this moment, and gate can be opened.At lock body seat 6 electric break back contact 11 is installed, electro-pneumatic contact 12 is installed on latch hook 1, when the car door link plate to opening direction move or latch hook when opening the direction rotation, electro-pneumatic contact 12 is followed latch hook 1 and is separated with break back contact 11, disconnects electric loop.When the car door link plate when closing direction moves, latching system 8 is touched pilot bars 4 and slide block 3 is moved spring 9 compressions are separated with the cutter 7 that opens the door until roller 10, latch hook 1 rotates to the state that hooks latching system 8 because of the effect of gravity and spring 13 around axle 2, electro-pneumatic contact 12 moves to the state that engages with break back contact 11, and electric loop is connected.
Outstanding effect of the present invention is: (1) can ensure passenger's safety.Promptly when leveling zone, elevator cage door just can be opened, and when non-leveling zone, elevator cage door can not be opened, and avoids the passenger to fall into hoistway; (2) operate steadily, wear-resistant.Slide block 3 links with pilot bar 4, and is provided with the pilot bar more than 2, and slide block 3 slides steadily, the design of lining 5, and the resistance that makes slide block 3 slide in the process reduces and durable wear, and useful service life is long; (3) accurately reliable.Latch hook 1 of the present invention and latching system 8 be provided be complementary collude the on-hook structure, guarantee that the two coincide, the especially setting of longitudinal spring 13 can external force force the two failure-free to coincide, and avoids colluding hanging situation unreal or that owe real and occurring.
Because above-mentioned outstanding effect, the present invention is widely used in all kinds of elevators, especially all kinds of elevators that connect for hoistway.
Description of drawings
Fig. 1 is the structural representation (this moment, car door was in closed condition) that elevator the present invention when non-leveling zone is in locking states;
Fig. 2 is the structural representation (car door was opened and was prevented from this moment) that elevator the present invention when non-leveling zone is in locking states;
Fig. 3 is the structural representation (front) that elevator the present invention when leveling zone is in release position;
Fig. 4 is the structural representation (reverse side) that elevator the present invention when leveling zone is in release position;
Fig. 5 is the unitized construction scheme drawing of latch hook 1 of the present invention and roller 10;
Fig. 6 is the unitized construction scheme drawing of latch hook 1 of the present invention and longitudinal spring 13;
Fig. 7 is the local structure scheme drawing of the present invention when being in release position.
Identifier declaration: 1--latch hook; The 2--bearing; The 3--slide block; The 4--pilot bar; The 5--lining; 6--lock body seat; The 7--cutter that opens the door; The 8--latching system; The 9--crossed strip; The 10--roller; The 11--break back contact; The 12--moving contact; The 13--longitudinal spring.
The specific embodiment
Describe in further detail below in conjunction with accompanying drawing and to the present invention.
As shown in Figure 1, a kind of elevator cage door lock, it comprises latch hook 1, bearing 2, slide block 3, pilot bar 4, lining 5, lock body seat 6, the cutter 7 that opens the door, latching system 8, crossed strip 9, roller 10, break back contact 11, moving contact 12, longitudinal spring 13, because the present invention that this figure is the reflection elevator when being in non-leveling zone is in the structural representation of locking states, at this moment, be installed in every door layer by layer and go up the also not arrival of cutter 7 of opening the door of bank, so do not illustrate among this figure, again owing to crossed strip 9 among this figure is in more hidden position, so also not shown.Among this figure, latch hook 1 and latching system 8 coincide and is in the same place, and elevator door can not be opened, passenger's safety when having ensured non-leveling zone.
Fig. 2 and Fig. 1 are basic identical, but its reflection be elevator when being in non-leveling zone car door open the structural representation that is prevented from, in addition, because the relation at visual angle, slide block 3 is by hidden, so not shown.In the practice, when elevator was in non-leveling zone and accident and stops, some passenger may think to open the door by force, and undoubtedly, this can bring great potential safety hazard.Among this figure, because the position-limiting action of lock body seat 6 (as can be seen, the extension elongation of pilot bar 4 and the difference among Fig. 1 among this figure), be prevented from behind the feasible certain stroke of slide block 3 operations that is fixed on the pilot bar 4, be that latch hook 1 is in the same place with latching system 8 is still identical, the possibility that elevator door is opened by force disappears, and further ensures passenger's safety.
Fig. 3 and Fig. 4 are the structural representations that the present invention when leveling zone of reflection elevator is in release position, for this process clearly is described, have provided the structural representation on positive and negative two sides altogether.Among Fig. 3, when elevator reaches leveling zone, the cutter 7 that opens the door occurs, the roller 10 of latch hook 1 trailing flank is collided when being prevented from the cutter 7 that opens the door, roller 10 produced torques with respect to axle 2 and latch hook 1 was rotated to an angle make latching system 8 break away from the constraint of latch hooks 1 this moment, latch hook 1 is done translation simultaneously and is rotatablely moved in dispose procedure, gate can be opened.In conjunction with Fig. 4, can more know the release position of the present invention this moment, at this moment, can find out clearly from the negative that crossed strip 9 is in elongation state, close car door and hide the foreshadowing for elevator continues operation after a while.
In conjunction with Fig. 5-Fig. 7, can know the constructional device of the especially local vitals of constructional device of the present invention more.
Fig. 5 is the unitized construction scheme drawing of latch hook 1 and roller 10, roller 10 is mounted on the trailing flank of latch hook 1, specifically, the tail end of latch hook 1, be provided with vertically upward a plate, roller 10 just is mounted on this plate, when the roller 10 and the cutter 7 that opens the door are collided when being prevented from, roller 10 produced torques with respect to bearing 2 and latch hook 1 was rotated to an angle make latching system 8 break away from the constraint of latch hooks 1, make latch hook 1 rotate under the effect of roller 10 this moment.Need to prove that this figure is the local structure scheme drawings, do not comprise bearing 2, parts such as the cutter 7 that opens the door, latching system 8, but as described in Fig. 1-Fig. 4, these position component relations and function should be set forth clear.
As shown in Figure 6, be the unitized construction scheme drawing of latch hook 1 of the present invention and longitudinal spring 13, because the existence of longitudinal spring 13, when latch hook 1 was tilted upward, when both the present invention was in release position, longitudinal spring 13 was compressed, and had the outside elastic force of recovering its deformation.
Shown in Figure 7, be the local structure scheme drawing of the present invention when being in release position.The outside elastic force of longitudinal spring 13 is not enough to again resist the moment of torsion that is produced when cutter 7 is opened the door in roller 10 contacts, promptly can not influence release position of the present invention.But when elevator moves or when being in non-leveling zone, be that roller 10 does not contact when not opening the door cutter 7, this outside elastic force can force latch hook 1 tenesmus, guarantees that latch hook 1 and latching system 8 failure-freies coincide, avoid colluding extension situation unreal or that owe real and occur, guarantee passenger's safety.

Claims (4)

1, a kind of elevator cage door lock, be installed in bank on the gate, comprise latch hook (1), slide block (3), lock body seat (6), the cutter that opens the door (7), latching system (8), crossed strip (9), roller (10), it is characterized in that: also comprise bearing (2), pilot bar (4), lining (5), break back contact (11), moving contact (12), longitudinal spring (13), described latch hook (1) is fixed on the described slide block (3) by described bearing (2); Described slide block (3) is fixed on the described pilot bar (4), and described pilot bar (4) is by described lining (5) supporting, and described lining (5) is fixed on the described lock body seat (6), and the tail end of described pilot bar (4) stretches out described lock body seat (6); The described cutter that opens the door (7) is installed in whenever the last bank of door layer by layer; Described latching system (8) is installed on the car door link plate, has with described latch hook (1) is complementary to collude the on-hook structure; Described crossed strip (9) suit also is fixed on the described pilot bar (4), and is installed between described slide block (3) and the described lock body seat (6); Described roller (10) is mounted on the tail end side of described latch hook (1); Described electric break back contact (11) is on described lock body seat (6), and described electro-pneumatic contact (12) is on described latch hook (1); Described longitudinal spring (13) be installed on described latch hook (1) directly over.
2, a kind of elevator cage door lock according to claim 1, it is characterized in that: the lower end of described longitudinal spring (13) or be fixed on the top of described latch hook (1), or touch with the top of described latch hook (1) and do not captive joint, the upper end of described longitudinal spring (13) is fixed on the position of distance described latch hook (1) top certain altitude by fastening device.
3, a kind of elevator cage door lock according to claim 1 and 2 is characterized in that: described latch hook (1) has downward projection, and described latching system (8) has projection upwards.
4, a kind of elevator cage door lock according to claim 1 and 2 is characterized in that: described pilot bar (4) is more than 2 or 2, and described lining (5) is copper sheathing or nylon jacket etc.
CNA2009100391964A 2009-05-05 2009-05-05 Elevator cage door lock Pending CN101549825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2009100391964A CN101549825A (en) 2009-05-05 2009-05-05 Elevator cage door lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2009100391964A CN101549825A (en) 2009-05-05 2009-05-05 Elevator cage door lock

Publications (1)

Publication Number Publication Date
CN101549825A true CN101549825A (en) 2009-10-07

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ID=41154360

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2009100391964A Pending CN101549825A (en) 2009-05-05 2009-05-05 Elevator cage door lock

Country Status (1)

Country Link
CN (1) CN101549825A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102358554A (en) * 2011-10-28 2012-02-22 慈溪市宏峰电梯配件有限公司 Elevator door lock switch
CN102897639A (en) * 2012-10-12 2013-01-30 宁波昌隆机电有限公司 Elevator door lock with limiting bushes
CN104249964A (en) * 2013-06-25 2014-12-31 苏州德奥电梯有限公司 Elevator door lock assembly and positioning method for assembly
CN106629356A (en) * 2016-12-28 2017-05-10 戈尔电梯(天津)有限公司 Elevator door cam limiting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102358554A (en) * 2011-10-28 2012-02-22 慈溪市宏峰电梯配件有限公司 Elevator door lock switch
CN102897639A (en) * 2012-10-12 2013-01-30 宁波昌隆机电有限公司 Elevator door lock with limiting bushes
CN102897639B (en) * 2012-10-12 2016-05-25 宁波昌隆机电有限公司 A kind of door lock of elevator with limiting bush
CN104249964A (en) * 2013-06-25 2014-12-31 苏州德奥电梯有限公司 Elevator door lock assembly and positioning method for assembly
CN106629356A (en) * 2016-12-28 2017-05-10 戈尔电梯(天津)有限公司 Elevator door cam limiting device

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C10 Entry into substantive examination
RJ01 Rejection of invention patent application after publication

Open date: 20091007

C12 Rejection of a patent application after its publication