CN215974463U - Elevator parking lock and elevator calling box - Google Patents

Abstract

The utility model relates to a lock for parking a lift and a lift calling box. The landing lock comprises a lock body, a circuit board and a switching component. The lock body comprises a lock head and a lock core sleeved in the lock head, and the lock core can rotate around the axis of the lock core in the lock head. The surface of the circuit board is at least provided with a first contact part and a second contact part. The switching assembly comprises an installation plate and an elastic sheet fixed on the installation plate, and the elastic sheet is provided with a first contact part and a second contact part. One of the circuit board and the switching component is fixed at the tail end of the lock head, and the other one is fixed at the tail end of the lock cylinder; the lock core is rotated, and the circuit board and the switching assembly can rotate relatively, so that the first contact part and the second contact part can be respectively in electric contact with or separated from the first contact part and the second contact part, and the switching of the elevator state is realized.

Description

Elevator parking lock and elevator calling box

Technical Field

The utility model relates to the technical field of elevators, in particular to a lock for parking an elevator and an elevator calling box.

Background

The elevator calling box is arranged on the outer wall outside the elevator hall and used for calling an elevator to reach the floor where passengers are located. The elevator calling box is internally provided with a elevator calling lock, the common elevator calling lock is a key switch, a cam structure behind the lock cylinder is driven to press a micro switch below the lock cylinder by rotating the key, the micro switch is switched into a closed state from a normally open state and is switched on, the elevator does not receive new elevator calling information any more, the elevator is automatically stopped at an appointed floor after a registered elevator calling task is completed, and management personnel or engineering personnel can conveniently enter the elevator to maintain. However, the common elevator-parking lock has a large external dimension, needs to occupy a large space inside the calling box, is not beneficial to simplifying the structure, and restricts the development of the calling box towards miniaturization.

SUMMERY OF THE UTILITY MODEL

Therefore, the elevator parking lock and the elevator calling box are needed to be provided, the structure is more compact and concise, the size of the elevator parking lock is favorably reduced, and the space occupied by the elevator parking lock in the elevator calling box is reduced.

A landing ladder lock, comprising:

the lock body comprises a lock head and a lock cylinder sleeved in the lock head, and the lock cylinder can rotate around the axis of the lock cylinder in the lock head;

the circuit board is provided with at least a first contact part and a second contact part on the board surface;

the switching assembly comprises a mounting plate and an elastic sheet fixed on the mounting plate, and the elastic sheet is provided with a first contact part and a second contact part;

one of the circuit board and the switching component is fixed at the tail end of the lock head, and the other one of the circuit board and the switching component is fixed at the tail end of the lock cylinder; the lock cylinder is rotated, the circuit board and the switching assembly can rotate relatively, so that the first contact part is in electrical contact with the first contact part, and the second contact part is in electrical contact with the second contact part; alternatively, the first contact portion is separated from the first contact portion, and the second contact portion is separated from the second contact portion.

In one embodiment, the circuit board is provided with at least two signal output lines for connecting with an elevator master control system, at least one signal output line is electrically connected with the first contact part, and at least one signal output line is electrically connected with the second contact part.

In one embodiment, a positioning groove is formed in the board surface of the mounting board, one end of the elastic sheet is fixed in the positioning groove, the other end of the elastic sheet extends towards the board surface of the circuit board, and the first contact portion and the second contact portion are both arranged at one end of the elastic sheet extending towards the circuit board.

In one embodiment, the elastic sheet is forked to form a first contact part and a second contact part which are arranged at intervals along the radial direction of the mounting plate; the first contact part and the second contact part are both arc-shaped and are arranged at intervals along the radial direction of the circuit board, the first contact part is positioned on an arc-shaped track where the first contact part and the circuit board relatively rotate, and the second contact part is positioned on an arc-shaped track where the second contact part and the circuit board relatively rotate.

In one embodiment, the circuit board is further provided with a third contact part and a fourth contact part which are arranged at intervals along the radial direction of the circuit board, and the third contact part is electrically connected with the first contact part; the third contact part and the first contact part are both positioned on the circular arc track of the first contact part and the circuit board which rotate relatively, and the fourth contact part and the second contact part are both positioned on the circular arc track of the second contact part and the circuit board which rotate relatively.

In one embodiment, the circuit board is further provided with at least three signal output lines, at least one signal output line is electrically connected with the first contact portion and the third contact portion, at least one signal output line is electrically connected with the second contact portion, and at least one signal output line is electrically connected with the fourth contact portion.

In one embodiment, the circuit board is provided with two positioning pieces, the two positioning pieces are arranged at intervals along the circumferential direction of the circuit board, and the first contact part, the second contact part, the first contact part and the second contact part are positioned on one side of the two positioning pieces; the mounting panel orientation one side of circuit board face still is equipped with the stopper, the stopper is located two the opposite side of setting element to can be two between the setting element with circuit board relative motion, two the setting element is used for limiting respectively stopper initial position and final position.

In one embodiment, the circuit board is fixed at the tail end of the lock head through the positioning piece, and the switching piece is fixed at the tail end of the lock cylinder; the switching assembly is located one side of the circuit board far away from the lock cylinder, and the limiting block is attached to the surface of the circuit board.

In one embodiment, the outer peripheral surface of the lock head is provided with a threaded part, and the lock body further comprises a lock nut matched with the threaded part, wherein the lock nut is used for fixing the lock body on a panel of an elevator calling box.

In one embodiment, the peripheral surface of the lock head is provided with at least two lugs arranged at intervals along the circumferential direction, the thread part is arranged on the lugs, and the cross section of the lock head provided with the lug positions is used for being matched with a through hole of a panel of an elevator calling box.

An elevator calling box comprises a box body and the elevator parking lock, wherein the elevator parking lock is fixed on the box body.

According to the elevator parking lock and the elevator calling box, when the elevator is in a normal running state, the first contact part of the elastic sheet is not in electrical contact with the first contact part of the circuit board, meanwhile, the second contact part is not in electrical contact with the second contact part, and at the moment, the first contact part and the second contact part are in a disconnected state. When the elevator needs to be switched from a normal running state to a parking state, the lock cylinder is rotated, the lock cylinder rotates around the axis of the lock cylinder in the lock head, the circuit board or the switching assembly is driven to rotate, relative rotation occurs between the circuit board and the switching assembly, the first contact portion is in electrical contact with the first contact portion, the second contact portion is in electrical contact with the second contact portion, the first contact portion and the second contact portion are in a conducting state through short circuit of the elastic piece at the moment, and the elevator is switched to the parking state. When the elevator needs to be switched from a parking state to a normal operation state, the lock cylinder is rotated reversely, so that the circuit board and the switching assembly rotate relatively, the first contact part is separated from the first contact part, the second contact part is separated from the second contact part, the first contact part and the second contact part are in a disconnected state, and the elevator is switched to the normal operation state. Therefore, the elevator can be switched from the normal running state to the parking state and also can be switched from the parking state to the normal running state through the matching of the lock body, the circuit board and the switching component. Because the circuit board and the mounting plate of the switching component are fixed at the tail end of the lock body, the elastic sheet is fixed on the mounting plate, and the elastic sheet is in electrical contact with or separated from the first contact part and the second contact part of the circuit board, the switching of the working state of the elevator is realized, so that the structure of the elevator parking lock is more compact and simple, the size of the elevator parking lock is favorably reduced, and the space occupied by the elevator parking lock in an elevator calling box is reduced.

Drawings

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

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 without creative efforts.

Fig. 1 is a schematic front view of a single-control elevator call box according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the internal structure of the single-control elevator calling box shown in fig. 1;

fig. 3 is a schematic structural view of a landing lock installed on a panel of an elevator call box according to an embodiment of the present invention;

FIG. 4 is a schematic view of the landing ladder lock of FIG. 3 in an operational state;

FIG. 5 is a schematic structural view of the parking lock of FIG. 3 in a parked state;

FIG. 6 is an exploded view of the dock ladder lock shown in FIG. 3;

FIG. 7 is a schematic view of the switching assembly of the landing gear lock of FIG. 6;

FIG. 8 is a schematic diagram of a circuit board of the landing lock shown in FIG. 6;

fig. 9 is a schematic front view of a parallel elevator call box according to another embodiment of the present invention;

fig. 10 is a schematic diagram of the internal structure of the parallel elevator call boxes shown in fig. 9;

fig. 11 is a schematic structural diagram of a circuit board of the parallel elevator call box shown in fig. 9.

The reference numbers illustrate: 10. a ladder parking lock; 11. a lock body; 111. a lock head; 1111. a bump; 112. a lock cylinder; 1121. a lock hole; 113. locking the nut; 12. a circuit board; 121. a first contact portion; 122. a second contact portion; 123. a third contact portion; 124. a fourth contact portion; 125. a signal output line; 126. a positioning member; 13. a switching component; 131. a spring plate; 1311. a first contact portion; 1312. a second contact portion; 132. mounting a plate; 1321. positioning a groove; 1322. a limiting block; 1323. hot melting the column; 14. a key; 20. a calling box; 21. a box body; 211. a panel; 2111. perforating; 2112. a groove; 22. and a digital display panel.

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.

Referring to fig. 3 to 6, a parking lock according to an embodiment of the present invention includes a lock body 11, a circuit board 12 and a switching assembly 13. The lock body 11 includes a lock head 111 and a lock cylinder 112 sleeved in the lock head 111, and the lock cylinder 112 can rotate around its own axis in the lock head 111. The board surface of the circuit board 12 is provided with at least a first contact portion 121 and a second contact portion 122. The switching assembly 13 includes a mounting plate 132 and a spring 131 fixed on the mounting plate 132, wherein the spring 131 has a first contact portion 1311 and a second contact portion 1312. One of the circuit board 12 and the switching assembly 13 is fixed to the rear end of the lock head 111, and the other is fixed to the rear end of the lock cylinder 112. The rotary lock cylinder 112, the circuit board 12 and the switching assembly 13 can rotate relatively, so that the first contact part 1311 is electrically contacted with the first contact part 121, and the second contact part 1312 is electrically contacted with the second contact part 122; alternatively, the first contact portion 1311 is separated from the first contact portion 121, and the second contact portion 1312 is separated from the second contact portion 122.

It should be noted that, referring to fig. 3 and 6, the landing lock 10 of the present embodiment is a key 14 switch. Specifically, the lock cylinder 112 is provided with a lock hole 1121, so that the insertion of the key 14 into the lock hole 1121 drives the lock cylinder 112 to perform a rotational movement about its axis.

Note that, the end of the lock cylinder 112 provided with the lock hole 1121 is a front end, and the end opposite to the front end is a rear end.

In the elevator landing lock, when the elevator is in a normal operation state, the first contact portion 1311 of the elastic piece 131 is not in electrical contact with the first contact portion 121 of the circuit board 12, and the second contact portion 1312 is not in electrical contact with the second contact portion 122, so that the first contact portion 121 and the second contact portion 122 are in an open state. When the elevator needs to be switched from the normal operation state to the parking state, the lock cylinder 112 is rotated, so that the lock cylinder 112 rotates around the axis of the lock cylinder 111 to drive the circuit board 12 or the switching component 13 to rotate, and further, the circuit board 12 and the switching component 13 rotate relatively, the first contact portion 1311 is electrically connected with the first contact portion 121, meanwhile, the second contact portion 1312 is electrically connected with the second contact portion 122, at this time, the first contact portion 121 and the second contact portion 122 are in a conducting state through short circuit of the elastic sheet 131, and the elevator is switched to the parking state. When the elevator needs to be switched from the parking state to the normal operation state, the lock cylinder 112 is rotated reversely, so that the circuit board 12 and the switching assembly 13 rotate relatively, the first contact portion 1311 is separated from the first contact portion 121, the second contact portion 1312 is separated from the second contact portion 122, the first contact portion 121 and the second contact portion 122 are in a disconnected state, and the elevator is switched to the normal operation state. Thus, the elevator can be switched from the normal operation state to the parking state and also from the parking state to the normal operation state through the cooperation of the lock body 11, the circuit board 12 and the switching component 13. Because the circuit board 12 and the mounting plate 132 of the switching assembly 13 are fixed at the tail end of the lock body 11, and the elastic sheet 131 is fixed on the mounting plate 132, the elevator working state is switched by electrically contacting or separating the elastic sheet 131 with the first contact part 121 and the second contact part 122 of the circuit board 12, so that the structure of the elevator parking lock 10 is more compact and concise, the size of the elevator parking lock 10 is reduced, and the space occupied by the elevator parking lock 10 in the elevator calling box 20 is reduced.

Specifically, the first contact portion 121, the second contact portion 122, the first contact portion 1311, and the second contact portion 1312 are made of a conductive metal material. For example, the first contact portion 121 and the second contact portion 122 are each plated with copper and gold, and the first contact portion 1311 and the second contact portion 1312 are each made of beryllium copper. In this way, when the first contact portion 1311 contacts the first contact portion 121 and the second contact portion 1312 contacts the second contact portion 122, the circuit inside the circuit board 12 can be conducted.

Further, referring to fig. 1 and 8, the circuit board 12 is provided with at least two signal output lines 125 for connecting with an elevator main control system, at least one signal output line 125 is electrically connected with the first contact portion 121, and at least one signal output line 125 is electrically connected with the second contact portion 122. Specifically, the signal output lines 125 are indirectly connected to the elevator main control system, for example, at least two signal output lines 125 are connected to the digital display panel 22 of the elevator call box 20, the first contact point portion 121 and the second contact point portion 122 are disconnected and conducted, signals are output to the digital display panel 22 of the elevator call box 20 through the signal output lines 125 for processing, and then the digital display panel 22 sends the signals to the elevator main control system, so as to control the operating state of the elevator.

In the present embodiment, referring to fig. 8, the circuit board 12 is provided with two signal output lines 125, wherein one signal output line 125 is electrically connected to the first contact portion 121, and the other signal output line 125 is electrically connected to the second contact portion 122.

In one embodiment, referring to fig. 4, 5, 7 and 8, the resilient tabs 131 bifurcate to form first and second contacts 1311, 1312 spaced radially along the mounting plate 132. Specifically, the first contact 1311 and the second contact 1312 are connected to form a U-shaped structure. The first contact portion 121 and the second contact portion 122 are both arc-shaped and are arranged at intervals along the radial direction of the circuit board 12; the first contact point 121 is located on the circular arc track of the relative rotation of the first contact portion 1311 and the circuit board 12, and the second contact point 122 is located on the circular arc track of the relative rotation of the second contact portion 1312 and the circuit board 12, so that the first contact point 121 and the second contact point 122 respectively keep consistent with the relative rotation motion tracks of the first contact portion 1311 and the second contact portion 1312, and are in aligned contact.

Specifically, referring to fig. 7 and 8, the first contact portion 121 is located inside the second contact portion 122 with respect to the middle of the circuit board 12, and the first contact portion 1311 is located inside the second contact portion 1312 with respect to the middle of the mounting plate 132.

In the present embodiment, the first contact portion 121 and the second contact portion 122 are both circular arc-shaped and extend along the circumferential direction of the circuit board 12. The first contact portion 121 and the second contact portion 122 are located on the same radial line at the middle portions in the circumferential direction. Further, the first contact portion 121 and the second contact portion 122 are copper-plated and gold-plated.

In one embodiment, referring to fig. 4 and fig. 7, the board surface of the mounting plate 132 is provided with a positioning slot 1321, one end of the elastic sheet 131 is fixed in the positioning slot 1321, the other end of the elastic sheet extends towards the board surface of the circuit board 12, and the first contact portion 1311 and the second contact portion 1312 are both arranged at one end of the elastic sheet 131 extending towards the circuit board 12. Thus, the positioning slot 1321 can play a role in positioning, and the elastic sheet 131 is convenient to install. In addition, the space in the thickness direction of the mounting plate 132 can be fully utilized, the interval between the mounting plate 132 and the circuit board 12 is reduced, the size of the parking ladder lock 10 along the axial direction of the lock body 11 is reduced, the structure of the parking ladder lock 10 is more compact, and the parking ladder lock 10 is beneficial to realizing miniaturization.

In the present embodiment, referring to fig. 4 and 7, the mounting plate 132 is formed by injection molding. The elastic sheet 131 comprises a flat part which is arranged in the positioning slot 1321 and is riveted with the hot melting column 1323 of the mounting plate 132 after being hot melted; the spring plate 131 further includes a first contact portion 1311 and a second contact portion 1312 tilted upward from the flat portion and bifurcated, the first contact portion 1311 being for making electrical contact with the first contact portion 121, and the second contact portion 1312 being for making electrical contact with the second contact portion 122.

In one embodiment, referring to fig. 3, 6, 7 and 8, the circuit board 12 is provided with two positioning members 126, and the two positioning members 126 are spaced apart along the circumference of the circuit board 12. The first contact portion 121, the second contact portion 122, the first contact portion 1311, and the second contact portion 1312 are located at one side of the two positioning members 126. The mounting plate 132 further has a limiting block 1322 facing the board surface of the circuit board 12, the limiting block 1322 is located on the other side of the two positioning members 126 and can move between the two positioning members 126, and the two positioning members 126 are used for limiting the initial position and the final position of the limiting block 1322 respectively. When the elevator is in a normal running state, the left side surface of the limiting block 1322 is in contact with the positioning piece 126 on the left side shown in the figure, the limiting block 1322 is limited to rotate anticlockwise (seen from the front surface of the panel 211 of the call box 20), and the key 14 can only rotate clockwise, so that the elevator is switched from the running state to the parking state. When the elevator is in a parking state, the right side of the limiting block 1322 is contacted with the positioning piece 126 on the right side shown in the figure, the limiting block 1322 is limited to rotate clockwise (seen from the front of the panel 211 of the call box 20), and the key 14 can only rotate anticlockwise, so that the elevator is switched from the parking state to the running state. Therefore, the use is convenient, and the use is safer and more reliable.

It should be noted that one side and the other side of the two positioning members 126 refer to one side and the other side of a straight line connecting the two positioning members 126.

Further, referring to fig. 6, the circuit board 12 is fixed to the rear end of the lock head 111 by a positioning member 126, and the switching assembly 13 is fixed to the rear end of the lock cylinder 112. When the switch assembly is used, the lock cylinder 112 is rotated to drive the switch assembly 13 to rotate, so that the first contact portion 1311 and the second contact portion 1312 of the elastic sheet 131 rotate to the positions of the first contact portion 121 and the second contact portion 122, and are electrically contacted with the first contact portion 121 and the second contact portion 122 respectively. Like this, the in-process that elevator operating condition switched, lock core 112 drive switching module 13 and rotate, and circuit board 12 keeps motionless, can avoid circuit board 12 rotation process signal output line 125 etc. to receive to involve and damage like this, guarantee to park the reliability that ladder lock 10 switched to elevator operating condition, prolong the life who parks ladder lock 10 simultaneously.

Specifically, referring to fig. 6, 7 and 8, the circuit board 12 is circular, two positioning holes are disposed on two opposite sides of the circular circuit board 12, and the two positioning elements 126 are inserted into the two positioning holes one by one. The circuit board 12 is attached to the rear end of the lock 111 and fixed to the rear end of the lock 111 by two positioning members 126. Two fixing holes are formed in the middle of the mounting plate 132, and the fixing member passes through the fixing holes and the circuit board 12 to fix the mounting plate 132 to the rear end of the key cylinder 112.

Further, referring to fig. 6, the switch assembly 13 is located on a side of the circuit board 12 away from the key cylinder 112, and the stop 1322 is disposed to abut against the circuit board 12. It should be noted that, the limiting block 1322 is disposed to abut against the circuit board 12, and when the lock cylinder 112 is rotated, the circuit board 12 does not interfere with the movement of the switch assembly 13, that is, the switch assembly 13 can still rotate. Because the stop 1322 is attached to the circuit board 12 near the lock cylinder 112, the stop 1322 supports the lock cylinder 112 to prevent the lock cylinder 112 from being removed from the lock head 111.

In one embodiment, referring to fig. 5 and 6, the side of the locking head 111 is provided with a threaded portion. The latch body 11 also includes a locknut 113 that mates with the threaded portion for securing the latch body 11 to the panel 211 of the elevator call box 20. In this way, the lock body 11 can be firmly fixed to the panel 211 of the elevator call box 20 by the locknut 113, so that the installation is facilitated and the installation reliability is high. In addition, the lock body 11 can be detached from the panel 211 of the elevator calling box 20 for replacement, maintenance and the like, and the use is convenient.

Further, referring to fig. 6, the lock cylinder 111 is provided at a side portion thereof with at least two protrusions 1111 arranged at intervals in a circumferential direction, the screw portion is provided at the protrusions 1111, and the lock cylinder 111 is provided with a cross section at the position of the protrusions 1111 for fitting with the through hole 2111 of the panel 211 of the elevator call box 20. Specifically, the panel 211 is provided with a through hole 2111, and the through hole 2111 is provided with a groove 2112 for receiving the projection 1111. It should be noted that the panel 211 of the elevator calling box 20 is perforated to form a through hole 2111 according to the cross-sectional shape of the installation surface of the lock head 111, and the protrusion 1111 on the side of the lock head 111 is located in the groove 2112, which is beneficial to preventing the whole rotation of the elevator parking lock 10.

Referring to fig. 1 and 2, the landing lock 10 is a landing lock 10 in a single-control call box 20, that is, one landing lock 10 controls the running state of one elevator. In one embodiment, referring to fig. 9, 10 and 11, one landing lock 10 controls the state of two elevators. Specifically, the circuit board 12 is further provided with a third contact portion 123 and a fourth contact portion 124 arranged at intervals along the radial direction of the circuit board 12, and the third contact portion 123 is electrically connected with the first contact portion 121; the third contact portion 123 and the first contact portion 121 are located on the circular arc track of the relative rotation of the first contact portion 1311 and the circuit board 12, and the fourth contact portion 124 and the second contact portion 122 are located on the circular arc track of the relative rotation of the second contact portion 1312 and the circuit board 12. In this way, the first contact portion 121 and the third contact portion 123 are located on the circular arc track of the relative rotation of the first contact portion 1311, the second contact portion 122 and the fourth contact portion 124 are located on the circular arc track of the relative rotation of the second contact portion 1312, so that the first contact portion 121 and the second contact portion 122 are electrically contacted, the third contact portion 123 and the fourth contact portion 124 are electrically contacted, and further, the switching of the working states of two elevators can be realized through one elevator parking lock 10.

Further, referring to fig. 11, the circuit board 12 is further provided with at least three signal output lines 125, until one signal output line 125 is electrically connected to the first contact portion 121 and the third contact portion 123, at least one signal output line 125 is electrically connected to the second contact portion 122, and at least one signal output line 125 is electrically connected to the fourth contact portion 124. Specifically, the signal output lines 125 are indirectly connected to the elevator main control system, for example, at least three signal output lines 125 are connected to the digital display panel 22 of the elevator call box 20, so that the signals of the first contact point portion 121 disconnected from the second contact point portion 122, the third contact point portion 123 and the fourth contact point portion 124 and conducted can be output to the digital display panel 22 of the elevator call box 20 through the signal output lines 125 for processing, and then the digital display panel 22 sends the signals to the elevator main control system, thereby controlling the state of the elevator.

In the present embodiment, the circuit board 12 is provided with three signal output lines 125, wherein one signal output line 125 is electrically connected to the first contact portion 121 and the third contact portion 123, one signal output line 125 is electrically connected to the second contact portion 122, and the other signal output line 125 is electrically connected to the fourth contact portion 124.

Referring to fig. 1, 2, 9 and 10, an elevator calling box 20 according to an embodiment of the present invention includes a box 21 and a landing lock 10 according to any one of the above embodiments, wherein the landing lock 10 is fixed in the box 21.

The elevator calling box 20 can switch the elevator from the running state to the parking state or from the parking state to the running state by the cooperation of the lock body 11, the circuit board 12 and the switching component 13. Because the circuit board 12 and the mounting plate 132 of the switching assembly 13 are fixed at the tail end of the lock body 11, and the elastic sheet 131 is fixed on the mounting plate 132, the elevator state switching is realized by electrically contacting or separating the elastic sheet 131 with the first contact part 121 and the second contact part 122 of the circuit board 12, so that the structure of the elevator parking lock 10 is more compact and concise, the size of the elevator parking lock 10 is reduced, and the space occupied by the elevator parking lock 10 in the elevator calling box 20 is reduced.

In this embodiment, the landing lock of any of the above embodiments is applied to an elevator to switch the operating state of the elevator. Of course, the landing lock can also be applied to elevator control loops in other fields.

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 utility model 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 utility model.

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 such 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 utility model. 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 (11)

1. A landing ladder lock, comprising:

the lock body comprises a lock head and a lock cylinder sleeved in the lock head, and the lock cylinder can rotate around the axis of the lock cylinder in the lock head;

the circuit board is provided with at least a first contact part and a second contact part on the board surface;

the switching assembly comprises a mounting plate and an elastic sheet fixed on the mounting plate, and the elastic sheet is provided with a first contact part and a second contact part;

one of the circuit board and the switching component is fixed at the tail end of the lock head, and the other one of the circuit board and the switching component is fixed at the tail end of the lock cylinder; the lock cylinder is rotated, the circuit board and the switching assembly can rotate relatively, so that the first contact part is in electrical contact with the first contact part, and the second contact part is in electrical contact with the second contact part; alternatively, the first contact portion is separated from the first contact portion, and the second contact portion is separated from the second contact portion.

2. The landing ladder lock of claim 1, wherein the circuit board is provided with at least two signal output lines for connection with an elevator master control system, at least one of the signal output lines being electrically connected to the first contact portion and at least one of the signal output lines being electrically connected to the second contact portion.

3. The landing ladder lock of claim 1, wherein the mounting plate has a positioning groove on a surface thereof, one end of the resilient plate is fixed in the positioning groove, the other end of the resilient plate extends toward the surface of the circuit board, and the first contact portion and the second contact portion are both disposed at an end of the resilient plate extending toward the circuit board.

4. The dock ladder lock of claim 1, wherein the spring plate is bifurcated to form a first contact portion and a second contact portion spaced radially along the mounting plate; the first contact part and the second contact part are both arc-shaped and are arranged at intervals along the radial direction of the circuit board, the first contact part is positioned on an arc-shaped track where the first contact part and the circuit board relatively rotate, and the second contact part is positioned on an arc-shaped track where the second contact part and the circuit board relatively rotate.

5. The dock ladder lock of claim 4, wherein the circuit board is further provided with a third contact portion and a fourth contact portion spaced apart in a radial direction of the circuit board, the third contact portion being electrically connected to the first contact portion; the third contact part and the first contact part are both positioned on the circular arc track of the first contact part and the circuit board which rotate relatively, and the fourth contact part and the second contact part are both positioned on the circular arc track of the second contact part and the circuit board which rotate relatively.

6. The dock ladder lock of claim 5, wherein the circuit board is further provided with at least three signal output lines, at least one of the signal output lines being electrically connected to the first contact portion and the third contact portion, at least one of the signal output lines being electrically connected to the second contact portion, and at least one of the signal output lines being electrically connected to the fourth contact portion.

7. The parking ladder lock of claim 1, wherein the circuit board is provided with two positioning members, the two positioning members are arranged at intervals along the circumferential direction of the circuit board, and the first contact portion, the second contact portion, the first contact portion and the second contact portion are positioned at one side of the two positioning members; the mounting panel orientation one side of circuit board face still is equipped with the stopper, the stopper is located two the opposite side of setting element to can be two between the setting element with circuit board relative motion, two the setting element is used for limiting respectively stopper initial position and final position.

8. The parking ladder lock as claimed in claim 7, wherein the circuit board is fixed at the tail end of the lock head by the positioning member, and the switching assembly is fixed at the tail end of the lock cylinder; the switching assembly is located one side of the circuit board far away from the lock cylinder, and the limiting block is attached to the surface of the circuit board.

9. The lock of any one of claims 1 to 8, wherein the lock head has a threaded portion on an outer peripheral surface thereof, and the lock body further comprises a lock nut engaged with the threaded portion, the lock nut being configured to secure the lock body to a panel of an elevator call box.

10. The lock of claim 9, wherein the lock head has at least two protrusions spaced circumferentially on an outer peripheral surface thereof, the threaded portion is disposed on the protrusions, and the lock head has a cross section at a protrusion position for fitting with a through hole of a panel of an elevator call box.

11. An elevator call box comprising a box and a landing lock as claimed in any one of claims 1 to 10, said landing lock being secured to said box.

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