CN114803803A

CN114803803A - Landing door lock device and elevator

Info

Publication number: CN114803803A
Application number: CN202210604828.2A
Authority: CN
Inventors: 江廷新; 肖永恒
Original assignee: Hitachi Elevator China Co Ltd
Current assignee: Hitachi Elevator China Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-07-29

Abstract

The invention relates to a layer door lock device and an elevator, which comprise a lock hook, a switch conductive piece, a lock seat and two conductive terminal units. The switch conductive piece is connected with the lock hook, and the two conductive terminal units are connected with the lock seat. The lock base is provided with a hook body matched with the lock hook. Each conductive terminal unit comprises a switch terminal with conductive capability, at least one conductive terminal unit comprises a conduction connecting piece and a plurality of switch terminals which are electrically connected with the conduction connecting piece, and when the latch hook is matched and locked with the hook body of the lock seat, the switch conductive piece is electrically contacted with at least one switch terminal of each conductive terminal unit. When the lock seat and the lock hook are in the locking position, the switch conductive piece is only electrically connected with one switch terminal, namely, the conductive terminal unit. The switch conductive piece is electrically contacted with one switch terminal of each conductive terminal unit, so that the two conductive terminal units can be conducted, and the stability and the reliability in use are improved.

Description

Landing door lock device and elevator

Technical Field

The invention relates to the technical field of landing door locks, in particular to a landing door lock device and an elevator.

Background

With the development of the elevator field, the industrial safety requirement is higher and higher. The landing door lock is a device used for the opening and closing process of the corresponding elevator landing door, an electric safety device is generally arranged on the landing door lock and used for sensing the opening and closing state of the landing door, and the elevator control can control the operation of the elevator according to a signal fed back by the electric safety device.

The electrical safety device comprises two switch terminals connected with the lock base and a switch conductive piece connected with the lock hook. When the landing door is closed, the lock hook is hooked with the lock seat, and the switch conductive piece is electrically connected with the two switch terminals, so that the electrical safety device feeds back a signal of closing the landing door; when the layer door is separated, the lock hook is separated from the lock seat, the switch conductive piece is separated from the switch terminal, and the electric safety device feeds back a signal for separating the layer door. And the problem that the reliability and the stability are lower exists when the layer door lock is actually used.

Disclosure of Invention

The invention provides a landing door lock device and an elevator, aiming at the problems, and the reliability and the stability of the landing door lock device are improved by arranging a plurality of switch terminals for electrically connecting the switch conductive pieces.

A layer door latch assembly comprising:

a latch hook;

the switch conductive piece is connected with the latch hook;

the lock seat is provided with a hook body matched with the lock hook, and the lock seat and the lock hook can be relatively switched between a locking position and an unlocking position;

the lock comprises a lock seat, two conductive terminal units, at least one conductive terminal unit and at least one switch conductive piece, wherein the two conductive terminal units are connected with the lock seat, each conductive terminal unit comprises a switch terminal with conductive capacity, at least one conductive terminal unit comprises a conduction connecting piece and a plurality of switch terminals which are electrically connected with the conduction connecting piece, and when the lock hook is matched and locked with a hook body of the lock seat, the switch conductive piece is electrically contacted with at least one switch terminal of each conductive terminal unit.

In one embodiment, the layer door lock device further includes a switch box, the switch box is connected to the lock base, the two conductive terminal units are disposed in the switch box, the switch box is provided with an inlet and an outlet, and the switch conductive member can be inserted into the switch box from the inlet and the outlet along an insertion direction in a process that the latch hook and the hook body are switched to the locking position.

In one embodiment, the switch terminal includes a main body connection portion and a main body conductive portion provided on the main body connection portion, the main body conductive portion being for electrically contacting the switch conductive member;

the main body connecting parts which belong to the conductive terminal unit together with the conductive connecting piece are all connected with the conductive connecting piece, and the main body conductive parts on the main body connecting parts are all electrically connected with the conductive connecting piece.

In one embodiment, the main body conductive part has a first convex arc surface protruding out of the main body connecting part, and an axis of the first convex arc surface is perpendicular to the insertion direction, and the first convex arc surface is used for being in electrical contact with the switch conductive part.

In one embodiment, a surface of the switch conductive member, which can be electrically contacted with the conductive part of the main body, is a second convex arc surface, and an axis of the second convex arc surface intersects with an axis of the first convex arc surface.

In one embodiment, the body connecting portion is an elongated structure disposed along the insertion direction, the body conductive portion is located at one end of the body connecting portion close to the inlet/outlet, the switch terminals are spaced apart in a first direction, the first direction is perpendicular to the insertion direction, a surface perpendicular to the insertion direction and passing through the inlet/outlet is a reference surface, and a distance between the body conductive portion and the reference surface on each of the switch terminals sequentially spaced apart in the first direction gradually increases or decreases.

In one embodiment, the main body conductive part is arranged on a side surface parallel to the insertion direction on the main body connecting part, and the side surface is a reference side surface;

the switch conductive piece comprises an insulating main body part and a conductive plate, the insulating main body part is detachably connected with the latch hook, one end, which firstly enters the inlet and the outlet, of the insulating main body part is the front end when the switch conductive piece is inserted into the inlet and the outlet, and the conductive plate is arranged at the front end of the insulating main body part;

the current conducting plate is the ladder board, the ladder board have with a plurality of ladder faces that the benchmark side is parallel, it is a plurality of the ladder face is with a plurality of benchmark side one-to-one, the ladder face can be followed the direction of insertion inserts the correspondence one side of benchmark side and on this benchmark side the main part conductive part electrical contact.

In one embodiment, the body connecting portion and the body conductive portion are integrally connected;

and/or the main body connecting part is an elastic sheet.

In one embodiment, the layer door lock device further comprises a terminal row, the terminal row is connected with the lock base, each switch terminal is arranged on the lock base, and a plurality of switch terminals belonging to the same conductive terminal unit are fastened on the lock base by the conducting connecting piece;

and/or the conducting connecting piece comprises a fastening bolt, and the fastening bolt is fastened and connected with a plurality of switch terminals belonging to one conductive terminal unit.

An elevator comprising a pair of landing doors and the landing door-lock assembly of any one of the above, one of the latch hook and the latch holder being connected to one of the landing doors and the other being connected to the other of the landing doors.

According to the scheme, the landing door locking device and the elevator are provided, in the landing door opening and closing process, the lock seat and the lock hook can move synchronously along with the landing door, and the lock seat and the lock hook can be switched between the locking position and the unlocking position relatively. The conductive terminal unit is designed to comprise a plurality of switch terminals which are all electrically connected together through the conduction connecting piece, so that in the actual use process, when the lock seat and the lock hook are located at the locking position, the switch conductive piece is only electrically connected with one switch terminal, namely, the switch conductive piece is electrically connected with the conductive terminal unit. The switch conductive piece is electrically contacted with at least one switch terminal of each conductive terminal unit, so that the two conductive terminal units can be conducted. Thereby improving the stability and reliability of the landing door lock device and the elevator in use.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a layer door lock device according to the present embodiment;

fig. 2 is a top view of the switch terminal of the present embodiment;

FIG. 3 is a front view of the switch terminal of FIG. 2;

fig. 4 is a front view of the switching conductor of the present embodiment;

fig. 5 is a left side view of the switching conductor of fig. 4.

Description of reference numerals:

10. a landing door lock device; 11. a latch hook; 12. switching the conductive member; 121. a second convex arc surface; 122. an insulating main body portion; 123. a conductive plate; 13. a lock seat; 14. a conductive terminal unit; 141. a switch terminal; 1411. a main body connecting part; 1412. a main body conductive portion; 1413. a first convex arc surface; 1414. a reference side; 142. conducting the connecting piece; 15. a switch box; 151. an inlet and an outlet; 16. a terminal block; 17. installing a base; 18. an elastic retention assembly.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, in one embodiment, a layer door lock device 10 is provided, which includes a latch hook 11, a switch conductive member 12, a lock housing 13, and two conductive terminal units 14. The switch conductive member 12 is connected to the latch hook 11, and both the conductive terminal units 14 are connected to the latch base 13. The lock base 13 has a hook body matched with the lock hook 11, and the lock base 13 and the lock hook 11 can be relatively switched between a locking position and an unlocking position.

The landing door-lock device 10 is generally installed at a landing door of an elevator, and both the lock holder 13 and the lock hook 11 are connected to one landing door and the other landing door. In the process of opening and closing the landing door, the lock seat 13 and the lock hook 11 move synchronously to realize the switching between the locking position and the unlocking position.

Whereas the switch conductor 12 and the conducting terminal unit 14 follow the latch hook 11 and the latch seat 13, respectively.

When the latch hook 11 is hooked with the hook body of the latch holder 13, the switch conductive member 12 is electrically connected to both of the two conductive terminal units 14, so that the two conductive terminal units 14 are turned on to transmit a signal of closing the exit door. On the contrary, the switch conductive member 12 is separated from the two conductive terminal units 14, and when the two conductive terminal units 14 are disconnected, a signal for opening the landing door is transmitted.

Further, as shown in fig. 1, each of the conductive terminal units 14 includes a switch terminal 141 having a conductive capability. The switch conductive member 12 is electrically connected to the conductive terminal unit 14, and specifically, the switch conductive member 12 is electrically connected to the switch terminal 141.

At least one of the conductive terminal units 14 includes a conductive connector 142 and a plurality of the switch terminals 141 electrically connected to the conductive connector 142. Specifically, one of the conductive terminal units 14 includes the conductive connection member 142 and a plurality of switch terminals 141 electrically connected to the conductive connection member 142, or two of the conductive terminal units 14 includes the conductive connection member 142 and a plurality of switch terminals 141 electrically connected to the conductive connection member 142. When the latch hook 11 is locked with the hook body of the latch base 13, the switch conductive member 12 is electrically contacted with at least one switch terminal 141 of each conductive terminal unit 14.

In the actual use process, the switch conductive member 12 only needs to be electrically contacted with one switch terminal 141 of the conductive terminal unit 14, and certainly, the switch conductive member is electrically connected with a plurality of switch terminals 141 of the conductive terminal unit 14, so that the conduction reliability is higher.

By designing at least one conductive terminal unit 14 to include a conductive connecting member 142 and a plurality of switch terminals 141 each electrically connected to the conductive connecting member 142, the possibility of electrically connecting the switch conductive member 12 to the conductive terminal unit 14 is increased, and the reliability and stability of the layer door lock device 10 in use are improved.

In addition, generally, the plurality of switch terminals 141 can be electrically connected to the switch conductive member 12 at the same time, so that the safety of conducting the two conductive terminal units 14 in the layer door lock device 10 is improved.

Specifically, in some embodiments, as shown in fig. 1, the conducting connector 142 includes a fastening bolt, and the fastening bolt is fastened to a plurality of switch terminals 141 belonging to one conductive terminal unit 14.

As shown in fig. 1, in an embodiment, each of the two conductive terminal units 14 includes a conducting connector 142 and two switch terminals 141, and the conducting connector 142 connects the two switch terminals 141 belonging to the same conductive terminal unit 14.

Further, in some embodiments, as shown in fig. 1, the layer door lock device 10 further includes a switch box 15, the switch box 15 is connected to the lock seat 13, and both of the conductive terminal units 14 are disposed in the switch box 15.

The switch box 15 is provided with an inlet and outlet 151, and the switch conductive piece 12 can be inserted into the switch box 15 from the inlet and outlet 151 along an insertion direction in the process that the latch hook 11 and the hook body are switched to the locking position. The switch conductive member 12 can be electrically connected to the switch terminal 141 only after being inserted into the switch box 15.

Specifically, in one embodiment, as shown in fig. 2 and 3, the switch terminal 141 includes a body connection portion 1411 and a body conductive portion 1412 disposed on the body connection portion 1411, wherein the body conductive portion 1412 is configured to electrically contact the switch conductive member 12. The body connecting portion 1411 is connected to the lock seat 13, and specifically, the body connecting portion 1411 may be indirectly connected to the lock seat 13 through the conductive connection member 142.

The plurality of main body connection portions 1411, which belong to one conductive terminal unit 14 together with the conductive connection piece 142, are all connected to the conductive connection piece 142, and the main body conductive portions 1412 on the plurality of main body connection portions 1411 are all electrically connected to the conductive connection piece 142.

In other words, the conductive connector 142 not only serves to fix the plurality of body connecting portions 1411, but also electrically connects the plurality of body conductive portions 1412 together.

As shown in fig. 1, the fastening bolt fastens the body connecting portions 1411 belonging to the same conductive terminal unit 14.

Further, as shown in fig. 2 and 3, in some embodiments, the main body conductive portion 1412 has a first convex arc surface 1413 protruding out of the main body connection portion 1411, and an axis of the first convex arc surface 1413 is perpendicular to the insertion direction. The first convex curved surface 1413 is for making electrical contact with the switching conductor 12.

As shown in fig. 4 and 5, in an embodiment, a surface of the switch conductive member 12 capable of electrically contacting with the conductive portion 1412 of the main body is a second convex arc surface 121, and an axis of the second convex arc surface 121 intersects with an axis of the first convex arc surface 1413. The body conductive portion 1412 is made to be more easily brought into contact with the switch conductor 12, and even if the switch conductor 12 is slightly offset in the axial direction of the second cambered surface 121, the second cambered surface 121 can be brought into contact with the first cambered surface 1413.

Moreover, the design of the convex arc surface also enables the switch conductive member 12 to gradually abut against the main body conductive part 1412 in the process of being inserted into the switch box 15, so as to avoid vertical impact between the switch conductive member and the main body conductive part 1412.

Further, the layer door lock device 10 includes a plurality of switch terminals 141, that is, includes a plurality of main body conductive parts 1412, so that the switch conductive member 12 has a plurality of second convex arc surfaces 121, and the plurality of second convex arc surfaces 121 correspond to the plurality of main body conductive parts 1412 one to one.

Further, as shown in fig. 1, in some embodiments, the switch terminals 141 are strip-shaped structures disposed along the insertion direction, and the switch terminals 141 are spaced apart in a first direction, and the first direction is perpendicular to the insertion direction. A surface perpendicular to the insertion direction and passing through the inlet/outlet 151 is a reference surface. The distance between one end of each of the switch terminals 141, which is sequentially spaced along the first direction and is close to the inlet/outlet 151, and the reference plane gradually increases or decreases.

The plurality of switch terminals 141 are arranged in a stepped arrangement, so that the switch conductive member 12 is electrically connected to each switch terminal 141.

Specifically, the body connecting portion 1411 has an elongated structure extending in the insertion direction, and the body conductive portion 1412 is located at one end of the body connecting portion 1411 near the inlet/outlet 151. The distance between the main body conductive part 1412 on each of the switch terminals 141 sequentially arranged at intervals in the first direction and the reference plane gradually increases or decreases.

As shown in fig. 2 and 3, in some embodiments, the main body conductive portion 1412 is disposed on a side surface of the main body connecting portion 1411 parallel to the insertion direction, and the side surface is a reference side surface 1414. The switch conductor 12 needs to move to a position facing the reference side 1414 to be able to make electrical contact with the body conductive portion 1412.

As shown in fig. 4 and 5, when the switch conductive member 12 is inserted into the switch box 15, the second convex arc surface 121 faces the reference side surface 1414.

In an embodiment, as shown in fig. 4 and 5, the switch conductive member 12 is provided with a plurality of second convex arc surfaces 121, axes of the plurality of second convex arc surfaces 121 are parallel, and axes of the plurality of second convex arc surfaces 121 are located on the same plane and are arranged at intervals. In the process of inserting the switch conductive member 12 into the switch box 15, a portion that first enters the inlet/outlet 151 is a front end, and the plurality of second convex arc surfaces 121 are arranged at the front end of the switch conductive member 12 in a stepped arrangement manner.

Specifically, as shown in fig. 4, the switch conductive member 12 includes an insulating main body portion 122 and a conductive plate 123. The insulating body 122 is detachably connected to the latch hook 11. When the conductive switch member 12 is inserted into the inlet/outlet 151, the end of the insulating main body 122 that first enters the inlet/outlet 151 is a front end, and the conductive plate 123 is disposed at the front end of the insulating main body 122.

The conductive plate 123 is a stepped plate having a plurality of stepped plate surfaces parallel to the reference side surface 1414, and the plurality of stepped plate surfaces are in one-to-one correspondence with the plurality of reference side surfaces 1414. As shown in fig. 1, the step plate surface can be inserted into the side corresponding to the reference side surface 1414 in the insertion direction and electrically contacted to the main conductive portion 1412 on the reference side surface 1414.

One switch terminal 141 corresponds to one step plate surface. In the embodiment shown in fig. 1, the floor latch 10 includes four switch terminals 141, and the conductive plate 123 has four stepped plate surfaces.

Specifically, in one embodiment, the body connecting portion 1411 and the body conductive portion 1412 are integrally formed and connected. It is understood that the switch terminal 141 is an integrally molded structure, and the main conductive portion 1412 is a part of the integrally molded structure.

Alternatively, in another embodiment, the main body conductive portion 1412 is a separate member separately provided on the main body connection portion 1411.

Further specifically, in some embodiments, the body connection portion 1411 is a spring. Therefore, when the switch conductive member 12 is engaged with the switch terminal 141, the elastic sheet can more reliably electrically connect the switch conductive member 12 and the main body conductive part 1412 according to the elastic deformation capability of the elastic sheet.

Further, as shown in fig. 1, in some embodiments, the layer door lock device 10 further includes a terminal row 16, the terminal row 16 is connected to the lock base 13, each of the switch terminals 141 is disposed on the lock base 13, and a plurality of the switch terminals 141 belonging to the same conductive terminal unit 14 are fastened to the lock base 13 by the conductive connection member 142. The switch terminal 141 is indirectly connected to the latch base 13 through the terminal block 16.

The switch terminal 141 is fastened to the terminal block 16 through the conductive connection 142, and the switch terminal 141 is partially suspended outside the conductive connection 142. The switch terminals 141 belonging to the same conductive terminal unit 14 are different in length from the conductive connecting member 142. As shown in fig. 1, one ends of the switch terminals 141, which overhang the conductive connection member 142, are arranged in a stepped arrangement.

The step arrangement in this application means that the geometric centers of the components are assumed to have a distance in two mutually perpendicular directions, and the geometric centers of the components are located on a plane, and the plane is parallel to the two previous mutually perpendicular directions. For example, the X axis and the Y axis are vertical, the projections of the components on the projection plane vertical to the X axis are arranged at intervals, the projections of the components on the projection plane vertical to the Y axis are arranged at intervals, and the geometric centers of the components are positioned on a plane parallel to the XY plane defined by the X axis and the Y axis.

As shown in fig. 1, the landing door lock device 10 further includes an installation base 17, the locking hook 11 is rotatably disposed on the installation base 17, so that the locking hook 11 can be switched between a locking position with the hook body and a releasing position with the hook body, and the installation base 17 is further provided with an elastic retaining component 18, where the elastic retaining component 18 is used to provide an elastic force for the locking hook 11, so that the locking hook 11 tends to be retained in a hooked state with the hook body.

Still further, in yet another embodiment, there is provided an elevator comprising a pair of landing doors and the landing door latch device 10 of any one of the above, one of the latch hook 11 and the latch holder 13 being connected to one of the landing doors and the other being connected to the other of the landing doors.

In the process of opening and closing the landing door, the lock holder 13 and the lock hook 11 can move synchronously along with the landing door, and the lock holder 13 and the lock hook 11 can be switched between a locking position and an unlocking position relatively. By designing the conductive terminal unit 14 to include a plurality of the switch terminals 141, and electrically connecting the switch terminals 141 together through the conductive connecting member 142, in the actual use process, when the lock base 13 and the lock hook 11 are in the locking position, the switch conductive member 12 is electrically connected to only one of the switch terminals 141, that is, the conductive terminal unit 14. The switch conductor 12 is electrically contacted with at least one switch terminal 141 of each conductive terminal unit 14, i.e., two conductive terminal units 14 are conducted. Thereby improving the stability and reliability of the landing door-lock apparatus 10 and the elevator in use.

Specifically, in one embodiment, the moving direction of the two landing doors when opened and closed coincides with the insertion direction. When the two doors approach each other, the switch conductive member 12 approaches the switch box 15 in the insertion direction until it is inserted therein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A layer door latch assembly, comprising:

a latch hook;

the switch conductive piece is connected with the latch hook;

2. The layer door lock device according to claim 1, further comprising a switch box, wherein the switch box is connected to the lock base, the two conductive terminal units are disposed in the switch box, the switch box is provided with an inlet and an outlet, and the switch conductive member can be inserted into the switch box from the inlet and the outlet along an insertion direction during the process of switching the latch hook and the hook body to the locking position.

3. The layer door lock device as claimed in claim 2, wherein the switch terminal includes a body connecting portion and a body conductive portion provided on the body connecting portion, the body conductive portion being for electrical contact with the switch conductive member;

4. The layer door lock device according to claim 3, wherein the main body conductive part has a first convex arc surface that protrudes outside the main body connecting part, and an axis of the first convex arc surface is perpendicular to the insertion direction, the first convex arc surface being for electrical contact with the switch conductive part.

5. The layer door lock device according to claim 4, wherein the surface of the switching conductive member that can be electrically contacted with the conductive portion of the main body is a second convex arc surface, and an axis of the second convex arc surface intersects with an axis of the first convex arc surface.

6. The layer door lock device according to claim 3, wherein the body connecting portion is an elongated structure provided along the insertion direction, the body conductive portion is located at an end of the body connecting portion near the inlet/outlet, the switch terminals are arranged at intervals in a first direction, the first direction is perpendicular to the insertion direction, a surface perpendicular to the insertion direction and passing through the inlet/outlet is a reference surface, and a distance between the body conductive portion and the reference surface on each of the switch terminals arranged at intervals in order along the first direction gradually increases or decreases.

7. The layer door lock device according to claim 6, wherein the main body conductive portion is provided on a side surface of the main body connecting portion parallel to the insertion direction, and the side surface is a reference side surface;

8. The layer latch assembly of claim 3 wherein said body coupling portion and said body conductive portion are integrally formed and connected;

and/or the main body connecting part is an elastic sheet.

9. The layer door lock device according to claim 1, further comprising a terminal row connected to the lock base, wherein each of the switch terminals is provided in the lock base, and a plurality of the switch terminals belonging to the same conductive terminal unit are fastened to the lock base by the conductive connecting member;

10. An elevator characterized by comprising a pair of landing doors and the landing door-lock apparatus of any one of claims 1 to 9, one of the lock hook and the lock holder being connected to one of the landing doors and the other being connected to the other landing door.