CN107265268B - Elevator door lock device - Google Patents
Elevator door lock device Download PDFInfo
- Publication number
- CN107265268B CN107265268B CN201710555730.1A CN201710555730A CN107265268B CN 107265268 B CN107265268 B CN 107265268B CN 201710555730 A CN201710555730 A CN 201710555730A CN 107265268 B CN107265268 B CN 107265268B
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- Prior art keywords
- lock
- hook
- rotating
- elevator door
- mounting plate
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- 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
- B66B13/20—Lock mechanisms actuated mechanically by abutments or projections on the cages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention discloses an elevator door lock device, comprising: the elevator door lock comprises a lock seat mounting plate fixed on a door head, a fixed lock hook arranged on the lock seat mounting plate, a rotating lock hook arranged on an elevator door, and a detection switch for detecting the in-place matching of the rotating lock hook and the fixed lock hook, wherein a transmission part which is matched with the rotating lock hook in place and triggers the detection switch is arranged on the lock seat mounting plate. The detection switch includes: the socket is fixed on the lock seat mounting plate, and the contact pin is fixed on the transmission piece and matched with the socket. Compared with the prior art, the elevator door lock device provided by the invention has the advantages of simple and compact structure, convenience in field installation and maintenance, low cost and better use safety.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator door lock device.
Background
The elevator door lock is an important part for ensuring the safe use of the elevator, and when the elevator car is not in a flat-bed position, the landing door needs to be kept in a closed state so as to prevent passengers from falling into the hoistway and causing casualty accidents.
Every layer of door of elevator all is provided with the layer lock correspondingly, guarantees through layer lock that the layer door is in the closed condition. A landing door lock typically includes a mechanical latch hook assembly and an electrical component that detects the open or closed state of the mechanical latch hook assembly.
Although many elevator layer locks that circulate in the existing market can guarantee that the layer door is in the state of closing, but electrical component adopts the electric contact that exposes outside, has very big potential safety hazard.
For example, patent document CN103818809a discloses an elevator landing door lock, which uses the exposed electrical contacts to overlap to realize the detection function of electrical components, so that not only is there a potential safety hazard, but also the installation and debugging of the contacts are inconvenient.
As shown in fig. 1, in a conventional elevator landing door lock in the prior art, a rotating latch hook 1 and a fixed latch hook 4 are engaged with each other to lock a landing door, when the landing door is locked, a moving electrical contact 2 of the rotating latch hook 1 and a fixed electrical contact 3 on a lock base mounting plate 5 are overlapped to connect a circuit, the fixed electrical contact 3 is made of a completely exposed metal sheet, and a shield above the metal sheet can only shield falling objects from above.
The mobile electric contact moves from right to left in the lapping process, and has a certain rotating angle along with the lifting and falling of the lock hook, in order to avoid a walking path of the mobile electric contact, an opening needs to be reserved on the right side of the shield, and the opening is enough for meeting the requirement that a finger passes through the touch metal sheet.
When people passed in and out the car, because there is the clearance between layer door and the sedan-chair door, the demand of layer lock for satisfying the lock door generally is arranged in the clearance of layer door and sedan-chair door, and the maintenance personnel and passenger touch fixed electrical contact through the opening extremely easily when upwards stretching out the hand, because lock safety circuit voltage is mostly the forceful electric current, leads to taking place to electrocute casualty accident easily.
In the prior art, the end part of the fixed electric contact of the elevator landing door lock adopts copper metal and is provided with conductive metal contact pieces which are parallel to each other, the surface of the movable electric contact generally adopts a silver-containing coating, the inside of the movable electric contact is a conductive copper metal block, and the support of the movable electric contact is an insulating support.
In order to ensure that the movable electric contact can just touch the fixed electric contact when the rotating lock hook is locked, when the rotating lock hook is installed, the metal connecting sheet of the fixed electric contact upwarps for a certain angle relative to the horizontal plane, the angle is too large, the silver-containing coating on the surface of the movable electric contact is easy to wear, and the insulating support is too large in stress, so that the service life of the movable electric contact is shortened; if the angle is too small, the movable electrical contact can not be lapped on the fixed electrical contact easily, the circuit is broken, and the function of the landing door lock is lost.
The door lock adopts the movable electric contact with the inner part being the copper metal block and the outer surface being the silver-containing coating, so that the cost is higher, the upwarping angle of the metal contact piece needs to be accurately controlled, and the door lock is very inconvenient to install, maintain and replace accessories.
Disclosure of Invention
The invention provides an elevator door lock device, which is lower in cost, convenient to install and high in safety compared with the existing elevator door lock device.
An elevator door lock device, comprising: the elevator door lock comprises a lock seat mounting plate fixed on a door head, a fixed lock hook arranged on the lock seat mounting plate, a rotating lock hook arranged on an elevator door, and a detection switch for detecting the in-place matching of the rotating lock hook and the fixed lock hook, wherein a transmission part which is matched with the rotating lock hook in place and triggers the detection switch is arranged on the lock seat mounting plate.
In the invention, the rotating lock hook is not provided with an electric element any more, the detection switches are all arranged on the lock seat mounting plate, and the rotating lock hook transmits acting force through the transmission part on the lock seat mounting plate to trigger the detection switches.
Because the electric elements are all arranged on the lock seat fixing plate, when the electric elements are arranged, the good contact of the electric elements is ensured without adjusting the motion track of the rotating lock hook, so that the installation and replacement processes are easier to carry out.
When the rotating lock hook rotates, the rotating part applies force to the transmission part, and the detection switch is triggered through the movement of the transmission part.
The rotating lock hook is in place: the rotating lock hook is positioned at the position where the rotating lock hook is clamped with the fixed lock hook to realize the locking and closing of the landing door.
Preferably, the detection switch includes: the plug comprises a socket fixed on the lock seat mounting plate and a contact pin fixed on the transmission piece and matched with the socket.
The invention utilizes the splicing structure of the contact pin and the socket to replace the lapping structure of two electrical contacts in the prior art, and the rotating lock hook stirs the transmission member when rotating, so that the contact pin on the transmission member is inserted into the socket to communicate the safety loop.
The jack of socket only allows the contact pin to get into, can not hold the finger and stretch into, stops the emergence of electric shock accident, compares electrical contact safelyr.
The invention uses the contact pin to replace the electric contact with the copper metal block inside and the silver-containing coating outside, thereby effectively reducing the cost.
Preferably, the transmission member is rotatably mounted on the lock base mounting plate.
The driving medium is installed on the lock seat mounting panel through the pivot of level arrangement, rotates when the lock hook rotates, stirs the driving medium and rotates around self pivot, makes the contact pin on the driving medium insert in the socket on the lock seat mounting panel.
Preferably, the transmission member comprises:
the pin inserting device comprises a lock seat mounting plate, a pin inserting mechanism and a pin inserting mechanism, wherein the lock seat mounting plate is rotatably mounted on a lock seat mounting plate;
the rotating lock hook is abutted against the triggering part after being in place.
After the rotating lock hook is in place, acting force is applied to the triggering part, the triggering part pushes the swinging part to rotate, and the contact pin on the swinging part is inserted into the corresponding socket.
Preferably, the swinging part is fixedly connected or in contact fit with the trigger part. The swing portion and the trigger portion may be formed as an integral structure.
Preferably, the fixed latch hook has a hook head engaged with the rotating latch hook, one side of the hook head is an inclined surface for guiding the rotating latch hook to be in place, the other side of the hook head is a limit surface abutted against the rotating latch hook in place, and the triggering part of the transmission member has:
extending to the initial state of the joint part of the inclined surface and the limiting surface;
and a trigger state that the rotating lock hook is pressed by the rotating lock hook in place to rotate.
The rotating lock hook is horizontally moved to abut against the inclined surface of the fixed lock hook along with the elevator door, when the elevator door further moves, the rotating lock hook is lifted up under the guiding action of the inclined surface, after the rotating lock hook passes over the highest point of the inclined surface, the rotating lock hook descends and pushes the trigger part to move under the action of the self-locking spring and the self gravity, and the trigger part drives the swinging part to rotate so that the contact pin on the swinging part is inserted into the corresponding socket.
The axis of rotation of driving medium can set up on the swing portion, perhaps, during swing portion and trigger portion fixed connection or body structure, the axis of rotation of driving medium was located trigger portion.
In a preferred embodiment, the pivoting part is fixedly connected to the triggering part and is arranged in an L-shape. The swinging part is also used as a counterweight for driving the triggering part to restore the initial state.
As another preferred embodiment, the lock seat mounting plate is provided with an elastic member for driving the triggering portion to return to the initial state. Namely, the trigger part is pushed to return to the initial state by the elastic force of the elastic piece.
Compared with the prior art, the elevator door lock device provided by the invention has the advantages of simple and compact structure, convenience in field installation and maintenance, low cost and better use safety.
Drawings
Fig. 1 is a schematic view of a prior art elevator door lock device;
fig. 2 is a perspective view showing a closed state of an elevator door lock device according to the present invention;
fig. 3 is a schematic view illustrating an opened state of an elevator door lock device according to the present invention;
fig. 4 is a schematic view illustrating a closed state of an elevator door lock device according to the present invention;
fig. 5 is a schematic view of a rotating latch hook in an elevator door lock device according to the present invention;
fig. 6 is a view taken along direction a in fig. 5.
In the figure: 1. rotating the latch hook; 2. moving the electrical contact; 3. a fixed electrical contact; 4. fixing the latch hook; 4a, a limiting surface; 4b, an inclined surface; 5. a lock seat mounting plate; 6. a transmission member; 6a, a swing part; 6b, a trigger part; 7. an elevator door; 8. a socket; 9. inserting a pin; 10. a rotating shaft; 11. a connecting rod; 12. a self-locking spring; 13. and a limiting plate.
Detailed Description
Hereinafter, the elevator door lock device according to the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, 3 and 4, the elevator door lock device includes: the elevator door locking device comprises a lock seat mounting plate 5 fixed on a door head, a fixed lock hook 4 arranged on the lock seat mounting plate 5, a rotating lock hook 1 arranged on an elevator door 7, a detection switch for detecting the in-place matching of the rotating lock hook 1 and the fixed lock hook 4, and a transmission member 6 matched with the rotating lock hook 1 in place to trigger the detection switch.
The fixed lock hook 4 is provided with a hook head clamped with the rotating lock hook 1, one side of the hook head is an inclined surface 4b for guiding the rotating lock hook 1 to be in place, and the other side of the hook head is a limiting surface 4a abutted against the rotating lock hook 1 in place.
As shown in fig. 5 and 6, the rotating lock hook 1 is installed on the elevator door 7 through a rotating shaft, a self-locking spring 12 is disposed between the rotating lock hook 1 and the elevator door 7, and the self-locking spring 12 is a compression spring. The bottom of the rotating lock hook 1 is fixed with a connecting rod 11 which is vertically arranged, the elevator door 7 is relatively fixed with a limiting plate 13, the connecting rod 11 movably penetrates through the limiting plate 13, and the end part of the connecting rod 11, which penetrates out of the limiting plate 13, is sleeved with a self-locking spring 12.
As shown in fig. 3 and 4, the rotating hook 1 is kept in a horizontal initial state by the action of the self-locking spring 12, when the rotating hook 1 moves along with the elevator door 7 to contact with the inclined surface 4b of the fixed hook 4, the rotating hook 1 is lifted up (i.e., rotates around the rotating shaft in the clockwise direction in the figure) under the guiding action of the inclined surface 4b, and after passing through the highest point of the inclined surface 4b, the rotating hook 1 returns to a horizontal state under the action of the self-locking spring 12 and the self-gravity of the rotating hook 1, so as to realize the engagement with the fixed hook 4, and in the engagement state, the rotating hook 1 abuts against the limit surface 4a of the fixed hook 4, so as to prevent the rotating hook 1 from horizontally moving along with the elevator door 7 to disengage from the fixed hook 4.
As shown in fig. 3 and 4, the transmission member 6 is rotatably mounted on the lock base mounting plate 5, and the transmission member 6 includes: the swing part 6a is rotatably installed on the lock seat installation plate 5 through the rotating shaft 10, and the trigger part 6b is abutted to the rotating lock hook 1 after the lock seat installation plate is in place, the swing part 6a and the trigger part 6b are fixedly connected through bolts and are arranged in an L shape, and the swing part 6a is also used as a balance weight for driving the trigger part 6b to restore to the initial state.
If it is guaranteed that the rotating lock hook 1 pushes the trigger part 6b to rotate, the following conditions need to be met: the sum of the elastic force of the self-locking spring 12 and the gravity of the rotating lock hook 1 is larger than the balance weight, and if the condition is not met, the condition can be met by increasing the elastic force of the self-locking spring 12 or reducing the gravity of the swinging part 6 a.
The trigger portion 6b of the transmission member 6 includes: the initial state of the connecting part of the inclined surface 4b and the limiting surface 4a and the triggering state of the rotation of the rotating lock hook 1 after being in place.
The door head plate is provided with a limiting piece, so that the transmission piece 6 is kept in an initial state. The limiting element can act on the pivoting part 6a and/or the triggering part 6b, and the limiting element should avoid the movement path of the transmission element 6.
The detection switch includes: a socket 8 fixed on the lock seat mounting plate 5, and a pin 9 fixed on the transmission member 6 and matched with the socket 8.
As shown in fig. 3 and 4, the pin 9 is fixed on the swing portion 6a, and the pin 9 rotates around the rotation shaft 10 along with the swing portion 6a to realize the insertion and the separation with the socket 8. The jacks of the socket 8 are arranged obliquely relative to the horizontal plane, and the inclination angles of the jacks of the socket 8 and the horizontal plane are set according to the rotation path of the pins 9, so that the pins 9 can be smoothly inserted into the jacks.
The elevator door lock device provided by the invention has the following working process:
when the door is closed, the rotating lock hook 1 moves along with the elevator door 7 to gradually approach the fixed lock hook 4, when the rotating lock hook 1 contacts the inclined surface 4b of the fixed lock hook 4, the rotating lock hook 1 gradually lifts up under the guiding action of the inclined surface 4b, and after the rotating lock hook 1 passes through the highest point of the inclined surface 4b, the rotating lock hook 1 falls down under the action of the self-locking spring 12 and the self-gravity of the rotating lock hook 1, and presses the trigger part 6b downwards, and the trigger part 6b rotates clockwise (in the direction shown in fig. 4) around the rotating shaft 10 and drives the contact pin 9 on the swinging part 6a to be inserted into the socket 8, so that an electric safety loop is connected.
When the door is opened, the rotating latch hook 1 is lifted up and disengaged from the fixed latch hook 4, the swinging portion 6a serves as a counterweight to rotate the trigger portion 6b counterclockwise (in the direction shown in fig. 4), and the pin 9 on the swinging portion 6a is disengaged from the socket 8.
The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. It is to be understood that such changes and modifications are intended to be included within the scope of the appended claims. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (7)
1. An elevator door lock device, comprising: the elevator door lock is characterized in that a driving part which is matched with the rotating lock hook in place and triggers the detection switch is arranged on the lock seat mounting plate;
the detection switch includes: the plug comprises a socket fixed on the lock seat mounting plate and a contact pin fixed on the transmission part and matched with the socket;
the driving medium rotates to be installed on the lock seat mounting panel, the driving medium includes:
the pin inserting device comprises a lock seat mounting plate, a pin inserting mechanism and a pin inserting mechanism, wherein the lock seat mounting plate is rotatably mounted on a lock seat mounting plate;
the trigger part is acted with the swinging part, and the rotating lock hook in place is propped against the trigger part.
2. The elevator door lock device of claim 1, wherein the swinging portion is fixedly connected or in contact engagement with the triggering portion.
3. The elevator door lock device according to claim 1, wherein the fixed hook has a hook head engaged with the rotating hook, the hook head has an inclined surface on one side for guiding the rotating hook to be positioned, and a stopper surface on the other side for abutting against the rotating hook after being positioned, and the trigger part of the driving member has:
extending to the initial state of the joint part of the inclined surface and the limiting surface;
and a trigger state that the rotating lock hook is pressed by the rotating lock hook in place to rotate.
4. The elevator door lock device of claim 1, wherein the axis of rotation of the driving member is located on the trigger portion.
5. The elevator door lock device of claim 1, wherein the swinging portion is fixedly connected with the triggering portion and arranged in an L-shape.
6. The elevator door lock device of claim 1, wherein the swinging portion doubles as a counterweight for driving the triggering portion to restore the initial state.
7. The elevator door lock device of claim 1, wherein the lock bracket mounting plate is provided with an elastic member for urging the trigger to return to an original state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555730.1A CN107265268B (en) | 2017-07-10 | 2017-07-10 | Elevator door lock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555730.1A CN107265268B (en) | 2017-07-10 | 2017-07-10 | Elevator door lock device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107265268A CN107265268A (en) | 2017-10-20 |
| CN107265268B true CN107265268B (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710555730.1A Active CN107265268B (en) | 2017-07-10 | 2017-07-10 | Elevator door lock device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107265268B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422718A (en) * | 2019-09-05 | 2019-11-08 | 大连欧意测量仪器有限公司 | Door lock of elevator depth of engagement detector and elevator device |
| CN113911867B (en) * | 2020-07-07 | 2023-04-07 | 株式会社日立制作所 | Elevator door and elevator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0867477A (en) * | 1994-08-30 | 1996-03-12 | Mitsubishi Denki Bill Techno Service Kk | Lock switch for elevator |
| CN104150333A (en) * | 2014-08-20 | 2014-11-19 | 快意电梯股份有限公司 | Lift car door lock device and operation method thereof |
| JP2015016949A (en) * | 2013-07-10 | 2015-01-29 | フジテック株式会社 | Door device for elevator |
| CN104743429A (en) * | 2014-11-27 | 2015-07-01 | 西子奥的斯电梯有限公司 | Landing door lock device |
| CN105819315A (en) * | 2015-01-22 | 2016-08-03 | 通力股份公司 | Elevator car |
| CN207226780U (en) * | 2017-07-10 | 2018-04-13 | 浙江西子重工机械有限公司 | A kind of elevator door lock device |
-
2017
- 2017-07-10 CN CN201710555730.1A patent/CN107265268B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0867477A (en) * | 1994-08-30 | 1996-03-12 | Mitsubishi Denki Bill Techno Service Kk | Lock switch for elevator |
| JP2015016949A (en) * | 2013-07-10 | 2015-01-29 | フジテック株式会社 | Door device for elevator |
| CN104150333A (en) * | 2014-08-20 | 2014-11-19 | 快意电梯股份有限公司 | Lift car door lock device and operation method thereof |
| CN104743429A (en) * | 2014-11-27 | 2015-07-01 | 西子奥的斯电梯有限公司 | Landing door lock device |
| CN105819315A (en) * | 2015-01-22 | 2016-08-03 | 通力股份公司 | Elevator car |
| CN207226780U (en) * | 2017-07-10 | 2018-04-13 | 浙江西子重工机械有限公司 | A kind of elevator door lock device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107265268A (en) | 2017-10-20 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210615 Address after: Room 305-w, 3rd floor, 11 Lane 1888, Caoyang Road, Putuo District, Shanghai 200062 Applicant after: Xin Xi'ao Elevator Group Co.,Ltd. Address before: No.46, Qichao Road, Chang'an Town (Nongfa District), Haining City, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG XIZI HEAVY INDUSTRY MACHINERY Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230307 Address after: 314001 No. 956, Weiye Road, Jiaxing Economic and Technological Development Zone, Zhejiang Province Applicant after: Zhejiang Youmai Heavy Industry Machinery Co.,Ltd. Address before: Room 305-w, 3rd floor, 11 Lane 1888, Caoyang Road, Putuo District, Shanghai 200062 Applicant before: Xin Xi'ao Elevator Group Co.,Ltd. |
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