CN109436999B - Elevator connecting rod type landing door lock - Google Patents
Elevator connecting rod type landing door lock Download PDFInfo
- Publication number
- CN109436999B CN109436999B CN201811435861.7A CN201811435861A CN109436999B CN 109436999 B CN109436999 B CN 109436999B CN 201811435861 A CN201811435861 A CN 201811435861A CN 109436999 B CN109436999 B CN 109436999B
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- CN
- China
- Prior art keywords
- lock hook
- movable
- lock
- hook
- connecting rod
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- 230000009471 action Effects 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
- B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention provides an elevator connecting rod type layer door lock, which further comprises a second movable lock hook, a first lock hook connecting rod, a second lock hook connecting rod and an elastic body, wherein the second movable lock hook is movably hinged and is abutted against the first movable lock hook, the lock hook part of the second movable lock hook protrudes out of the lock hook part of the first movable lock hook, the elastic body is arranged between the second movable lock hook and the first movable lock hook, the second movable lock hook is kept fixed relative to the first movable lock hook under the action of the elastic body, one end of the first lock hook connecting rod is movably hinged to the second movable lock hook, the other end of the first lock hook connecting rod is movably hinged to the second lock hook connecting rod, the second lock hook connecting rod is fixedly connected to the rotation center of an unlocking deflector rod and can rotate along with the unlocking deflector rod, and the elevator connecting rod type layer door lock ensures the safety of manual unlocking in a technical aspect and has high practicability.
Description
Technical Field
The invention relates to the field of elevator door locks, in particular to an elevator connecting rod type landing door lock.
Background
The elevator landing door lock is also called a hall door lock, is installed at the landing door of each floor, and is a safety device for ensuring that the landing door is not opened by personnel outside the hall. Only when the elevator enters the unlocking area and stops at a flat floor, the landing doors can be synchronously opened by the door knife on the car door. In emergency situations or when maintenance personnel need to enter a hoistway or get on top of a car to maintain an elevator, landing doors can be opened by trained elevator professionals from outside the landing doors by means of a triangular key. When the landing door is opened from the outside of the landing door by means of the triangular key, safety operation regulations need to be complied with, for example, the landing door cannot be opened once, a certain gap should be opened first, and the landing door is fully opened after the car is confirmed to be in a safety position.
However, because the elevator in China has huge maintenance quantity and the number of specialized maintenance personnel is seriously insufficient, the quality of the specialized personnel is uneven, the operation behaviors are not standardized and are ubiquitous, the specialized personnel can open the landing door completely at one time sometimes, and accidents of falling into a hoistway can be caused by slight carelessness.
Therefore, the existing landing door lock can effectively prevent non-professional personnel from opening the landing door, but cannot effectively prevent safety accidents caused by non-standard operation of professional personnel from the technical aspect.
Disclosure of Invention
In order to solve the problems, the invention provides the elevator connecting rod type landing door lock, which is designed for nonstandard operation of professionals, technically ensures that falling accidents are not caused even if professionals take nonstandard operation, and can open the landing door, thereby enhancing the safety of the landing door lock.
The invention adopts the following technical scheme:
the elevator connecting rod type landing door lock comprises a first movable lock hook, a fixed lock hook, a lock wheel assembly, a lock bottom plate and a manual unlocking assembly, wherein the first movable lock hook and the lock wheel assembly are fixedly connected into a whole, the lock wheel assembly is movably hinged to the lock bottom plate, the manual unlocking assembly comprises an unlocking deflector rod and an unlocking swing rod, one end of the unlocking swing rod is fixedly connected to the first movable lock hook, the other end of the unlocking swing rod is abutted to the unlocking deflector rod, and the elevator connecting rod further comprises a second movable lock hook, a first lock hook connecting rod, a second lock hook connecting rod and an elastomer;
the second movable lock hook is movably hinged and is abutted against the first movable lock hook, the lock hook part of the second movable lock hook protrudes out of the lock hook part of the first movable lock hook, the elastic body is arranged between the second movable lock hook and the first movable lock hook, and the second movable lock hook is kept motionless relative to the first movable lock hook under the action of the elastic body;
one end of the first lock hook connecting rod is movably hinged to the second movable lock hook, and the other end of the first lock hook connecting rod is movably hinged to the second lock hook connecting rod;
the second lock hook connecting rod is fixedly connected to the rotation center of the unlocking deflector rod and can rotate together with the unlocking deflector rod.
Preferably, the elastic body is a torsion spring, one end, far away from the latch hook part, of the second movable latch hook is movably hinged to the first movable latch hook, and the torsion spring is clamped at the movable hinge part.
Preferably, the upper edge of the first movable lock hook is provided with an outwardly extending limiting block, and the upper end surface of the second movable lock hook abuts against the limiting block under the action of the elastic body.
Preferably, one end of the first latch hook connecting rod is movably hinged to the middle of the second movable latch hook.
Preferably, the second lock hook connecting rod is a disc, the center of the disc is fixedly connected with the rotation center of the unlocking deflector rod, and the first lock hook connecting rod is movably hinged to the edge of the disc.
Preferably, the distance between the lock hook part of the second movable lock hook and the lock hook part of the first movable lock hook is 3 cm-15 cm.
Preferably, the length ratio of the first latch hook connecting rod to the second latch hook connecting rod is 9-15.
Preferably, a safety slot is formed in a position, meshed with the fixed lock hook, in the lock hook portion of the second movable lock hook, and when an external force applied to the second movable lock hook exceeds a specified limit, the safety slot breaks the lock hook portion of the second movable lock hook.
Preferably, when the second movable lock hook interacts with the fixed lock hook, the engagement depth of the second movable lock hook and the fixed lock hook is not less than 7mm.
Compared with the prior art, the invention has the beneficial effects that: according to the elevator connecting rod type landing door lock, the second movable lock hook, the first lock hook connecting rod, the second lock hook connecting rod and the elastic body are additionally arranged, the original first movable lock hook, the fixed lock hook, the lock wheel assembly, the lock bottom plate and the manual unlocking assembly are matched, manual unlocking of the landing door is decomposed into two steps which are completed according to the operation of a specified flow, the safety of manual unlocking is guaranteed on the technical level, and the unlocking function of an original landing door knife is not influenced. In addition, the elevator connecting rod type landing door lock can be improved on the basis of the original elevator door lock, so that the cost of production process improvement is reduced, the improvement of the existing elevator is facilitated, and the elevator connecting rod type landing door lock has strong practicability.
Drawings
Fig. 1 is a schematic diagram of a locked state of an elevator landing door lock in the prior art.
Fig. 2 is a schematic diagram of an unlocked state of the elevator landing door lock corresponding to fig. 1.
Fig. 3 is a schematic structural view of an elevator link type landing door lock according to an embodiment of the present invention.
Fig. 4 is a schematic view of the elevator link type landing door lock according to fig. 3 when first unlocked.
Fig. 5 is a schematic structural view of the elevator link type landing door lock corresponding to fig. 4 when the landing door is slotted after first unlocking.
Fig. 6 is a schematic view of the elevator link type landing door lock according to fig. 5 in a second unlocking operation.
Reference numerals illustrate:
protrusion distance: h tensile force: m thrust: n (N)
First movable lock hook: 1
And (3) a return spring: 11. the second movable lock hook: 12. first latch hook connecting rod: 13
The second lock hook connecting rod: 14. an elastomer: 15. limiting block: 16
Safety grooving: 17
Fixed latch hook: 2
Locking wheel assembly: 3
Moving lock wheel: 31. locking wheel: 32
Lock base plate: 4
Manual unlocking assembly: 5
Unlocking swing rod: 51. unlocking deflector rod: 52. unlocking a rotating shaft: 53.
Detailed Description
For a further understanding of the objects, construction, features, and functions of the invention, reference should be made to the following detailed description of the preferred embodiments.
The prior layer door lock structure principle is shown in fig. 1, and mainly comprises a first movable lock hook 1, a fixed lock hook 2, a lock wheel assembly 3, a lock bottom plate 4 and a manual unlocking assembly 5. Wherein, the fixed latch hook 2 is fixed on the door head plate of the landing door, and the position of the fixed latch hook is kept fixed. The lock wheel assembly 3 comprises a fixed lock wheel 32 and a movable lock wheel 31, and the fixed lock wheel 32 and the movable lock wheel 31 are fixed on the first movable lock hook 1. The first movable lock hook 1 and the lock wheel assembly 3 are movably hinged to the lock bottom plate 4 through the fixed lock wheel 32, namely the first movable lock hook 1 and the lock wheel assembly 3 can be taken as a whole, the center of the fixed lock wheel 32 is taken as a rotation center to swing relative to the lock bottom plate 4, and when the fixed lock wheel 32 swings, the first movable lock hook 1 and the fixed lock hook 2 can be disengaged, so that unlocking is realized.
The manual unlocking assembly 5 comprises an unlocking deflector rod 52 and an unlocking swing rod 51, wherein the upper end of the unlocking swing rod 51 is fixed on the first movable lock hook 1 through a screw, and the lower end of the unlocking swing rod 51 is abutted against the unlocking deflector rod 52. The upper end of the unlocking driving lever 52 is fixed on the unlocking rotation shaft 53, that is, when unlocking, the unlocking rotation shaft 53 can drive the unlocking driving lever 52 to swing.
The layer door lock shown in fig. 1 is in a locked state, in which the first movable locking hook 1 is engaged with the fixed locking hook 2 by the return spring 11 at the upper part thereof. The landing door lock shown in fig. 2 is in an unlocking state, at this time, the unlocking rotary shaft 53 is rotated by a triangular key outside the landing door, the unlocking rotary shaft 53 drives the unlocking deflector rod 52 to swing, and the unlocking deflector rod 52 dials the unlocking swing rod 51 to rotate around the center of the fixed lock wheel 32 against the first movable lock hook 1, so that the first movable lock hook 1 and the fixed lock hook 2 are finally disengaged, and the unlocking process is completed.
As shown in fig. 2, after the manual unlocking, the landing door can be completely opened once, and no safety protection device is provided, if the car is not stopped near the flat landing position of the floor, after the landing door is completely opened once, the landing door faces deep, dark and unprotected shafts, and unlocking personnel can cause falling accidents due to psychological fear and other factors.
In order to ensure that the landing door cannot be completely opened at one time from the technical level, an elevator link type landing door lock according to an embodiment of the present invention is shown in fig. 3. Embodiments of the present invention include a second movable shackle 12, a first shackle link 13, a second shackle link 14, and an elastomer 15 in addition to conventional components found in existing layer door locks.
One end of the second movable lock hook 12 is provided with a lock hook part, the other end is movably hinged to the first movable lock hook 1, and an elastic body 15 is clamped at the hinge position of the second movable lock hook 12 and the first movable lock hook 1, and in the embodiment, the elastic body 15 is a torsion spring. The upper edge of the first movable lock hook 1 extends outwards to form a limiting block 16, the inner side surface of the second movable lock hook 12 is attached to the first movable lock hook 1, and the upper end surface of the second movable lock hook 12 abuts against the limiting block 16 under the action of an elastic body 15 torsion spring.
As shown in fig. 3, the second movable hook 12 has a hook portion protruding from the left side of the first movable hook 1 by a distance H related to the size of the door opening gap required for confirming the position of the car when the door is opened, and preferably, the protruding distance H may be set to 3cm to 15cm.
One end of the first lock hook connecting rod 13 is movably hinged to the middle part of the second movable lock hook 12, and the other end of the first lock hook connecting rod is movably hinged to the second lock hook connecting rod 14. Since the second latch hook link 14 has a small length, it may be designed in the shape of a rod or a disk for easy manufacture and installation, and as shown in fig. 3, the second latch hook link 14 is designed as a disk in this embodiment. The second lock hook link 14 is fixedly connected to the rotation center of the unlocking lever 52, namely, the unlocking rotation shaft 53, and the second lock hook link 14 can rotate together with the unlocking lever 52. The first latch hook link 13 is movably hinged to the edge of the disc.
In order to achieve the intended function, there is a proportional relationship between the lengths of the first and second shackle links 13, 14, which is related to the interlocking relationship between the first and second shackle links 13, 14, preferably, the ratio is 9-15. The principle is as follows: as shown in fig. 4, when the unlocking rotation shaft 53 rotates clockwise, the second lock hook link 14 swings or rotates clockwise, and the second lock hook link 14 generates a pulling force M on the first lock hook link 13, which causes the second movable lock hook 12 to swing downward around its hinge. As shown in fig. 6, when the unlocking rotation shaft 53 rotates counterclockwise, the second lock hook link 14 swings or rotates counterclockwise, and the second lock hook link 14 generates a pushing force N on the first lock hook link 13, and the pushing force N swings the second movable lock hook 12 upward around the hinge point thereof.
The working process of the elevator connecting rod type landing door lock of the embodiment can be divided into three processes of first unlocking, landing door slotting and second unlocking, and the working principle of the elevator connecting rod type landing door lock is shown in figures 3, 4, 5 and 6. Before unlocking, as shown in fig. 3, the first movable lock hook 1 is meshed with the fixed lock hook 2, and the second movable lock hook 12 is positioned on the left side of the fixed lock hook 2. When manual unlocking is needed, as shown in fig. 4, the unlocking rotary shaft 53 is rotated clockwise by a triangular key outside the landing door, the unlocking rotary shaft 53 generates two interlocking actions, on one hand, the unlocking rotary shaft 53 drives the second lock hook connecting rod 14 to rotate clockwise, the lock hook connecting rod 14 generates a pulling force M on the first lock hook connecting rod 13, the pulling force M enables the second movable lock hook 12 to swing downwards around the hinged position of the second movable lock hook connecting rod, on the other hand, the unlocking rotary shaft 53 drives the unlocking deflector rod 52 to swing, the unlocking deflector rod 52 dials the unlocking swing rod 51 to enable the unlocking swing rod 51 to rotate around the center of the fixed lock wheel 32 against the first movable lock hook 1, and the first movable lock hook 1 and the fixed lock hook 2 are disengaged, so that first unlocking is completed.
At this time, the landing door can be opened to a certain gap to the relative position shown in fig. 5, an operator can confirm the position of the car in the hoistway through the gap of the landing door, if the landing door is not in the safety position, the triangular key is loosened, the landing door is automatically closed, if the landing door is in the safety position, the landing door can be further fully opened, the specific opening principle is as shown in fig. 6, on the basis of the diagram shown in fig. 5, the unlocking rotating shaft 53 is rotated anticlockwise by the triangular key, the unlocking rotating shaft 53 drives the second lock hook connecting rod 14 to rotate anticlockwise, the second lock hook connecting rod 14 generates a thrust N for the first lock hook connecting rod 13, and the thrust N enables the second movable lock hook 12 to swing upwards around the hinge position of the second movable lock hook 12 to be disengaged from the fixed lock hook 2, so as to complete the second unlocking.
In addition, a safety slot 17 is formed in a portion of the second movable lock hook 12 engaged with the fixed lock hook 2, and when the second movable lock hook 12 fails and is always engaged with the fixed lock hook 2, the lock hook portion of the fixed second movable lock hook 12 can be broken at the safety slot 17 by applying a force of a prescribed limit, thereby realizing an unlocking function under extreme conditions.
Meanwhile, in order to ensure the full engagement of the second movable lock hook 12 and the fixed lock hook 2, when the second movable lock hook 12 and the fixed lock hook 2 are mutually engaged and act as a lock, the engagement depth of the second movable lock hook 12 and the fixed lock hook 2 is not less than 7mm.
Compared with the prior art, the elevator connecting rod type landing door lock breaks down the complete opening of the landing door into two steps which are required to be completed according to the operation of the specified flow, so that the safety of manual unlocking is ensured in the technical aspect.
The invention has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (7)
1. The elevator connecting rod type landing door lock comprises a first movable lock hook, a fixed lock hook, a lock wheel assembly, a lock bottom plate and a manual unlocking assembly, wherein the first movable lock hook and the lock wheel assembly are fixedly connected into a whole, the lock wheel assembly is movably hinged to the lock bottom plate, the manual unlocking assembly comprises an unlocking deflector rod and an unlocking swing rod, one end of the unlocking swing rod is fixedly connected to the first movable lock hook, and the other end of the unlocking swing rod is abutted to the unlocking deflector rod;
the second movable lock hook is movably hinged and is abutted against the first movable lock hook, the length of the lock body of the second movable lock hook is larger than that of the first movable lock hook, the lock hook part of the second movable lock hook protrudes out of the lock hook part of the first movable lock hook, and the lock hook part of the first movable lock hook and the lock hook part of the second movable lock hook are sequentially locked at the same position of the fixed lock hook; the elastic body is arranged between the second movable lock hook and the first movable lock hook, and the second movable lock hook is kept motionless relative to the first movable lock hook under the action of the elastic body;
one end of the first lock hook connecting rod is movably hinged to the middle part of the second movable lock hook, and the other end of the first lock hook connecting rod is movably hinged to the second lock hook connecting rod;
the second lock hook connecting rod is a disc, and the center of the disc is fixedly connected to the rotation center of the unlocking deflector rod and can rotate together with the unlocking deflector rod; the first lock hook connecting rod is movably hinged to the edge of the disc.
2. The elevator link type landing door lock of claim 1, wherein the elastic body is a torsion spring, one end of the second movable latch hook far away from the latch hook portion is movably hinged to the first movable latch hook, and the torsion spring is clamped at the movable hinge position.
3. The elevator link type landing door lock of claim 1, wherein an upper edge of the first movable latch hook is provided with an outwardly extending stopper, and an upper end surface of the second movable latch hook abuts against the stopper under the action of the elastic body.
4. The elevator link type landing door lock of claim 1, wherein the distance by which the latch hook portion of the second movable latch hook protrudes from the latch hook portion of the first movable latch hook is 3cm to 15cm.
5. The elevator link landing door lock of claim 1, wherein the first shackle link and the second shackle link have a length ratio of 9-15.
6. The elevator link type landing door lock according to claim 1, wherein a safety slot is formed in a portion of the second movable lock hook engaged with the fixed lock hook, and the safety slot breaks the lock hook portion of the second movable lock hook when the second movable lock hook receives an external force exceeding a prescribed limit.
7. The elevator link type landing door lock of claim 1, wherein a depth of engagement of the second movable lock hook with the fixed lock hook is not less than 7mm when the second movable lock hook interacts with the fixed lock hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435861.7A CN109436999B (en) | 2018-11-28 | 2018-11-28 | Elevator connecting rod type landing door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435861.7A CN109436999B (en) | 2018-11-28 | 2018-11-28 | Elevator connecting rod type landing door lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109436999A CN109436999A (en) | 2019-03-08 |
| CN109436999B true CN109436999B (en) | 2023-11-07 |
Family
ID=65555119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811435861.7A Active CN109436999B (en) | 2018-11-28 | 2018-11-28 | Elevator connecting rod type landing door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109436999B (en) |
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| CN109436999A (en) | 2019-03-08 |
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