Elevator floor door unlocking device and elevator floor door

Abstract

The present invention relates to an elevator floor door unlocking device and an elevator floor door. The elevator floor door unlocking device comprises a floor door lock assembly, a triangular lock assembly, an unlocking lever and a lock lever stopper. The triangular lock assembly comprises a lock body and a lock shaft rotatably connected to the lock body, and the lock shaft can rotate relative to the lock body around its axial direction. The lock lever stopper is connected to the lock shaft and can rotate synchronously with the lock shaft. One end of the unlocking lever is connected to the floor door lock hook, and the other end extends to the rotation path of the lock lever stopper. The lock lever stopper can cooperate with the unlocking lever when it rotates, driving the unlocking lever to rotate so that the floor door lock hook rotates and opens. In this way, the unlocking part is prevented from escaping from the range of the unlocking lever during the unlocking process, ensuring that the floor door can be unlocked smoothly and reducing the difficulty of unlocking. At the same time, the lock lever stopper can play a windproof role for the unlocking lever, preventing the unlocking lever from generating a floor door lock assembly unlocking torque under the action of the vertical wind pressure generated during the up and down movement of the car, causing the floor door lock assembly to be instantly disconnected and causing the elevator to stop suddenly.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator floor door unlocking device and an elevator floor door. Background Art

[0002] The elevator floor door unlocking device is generally set on the door panel or door frame crossbeam. When people outside the hall need to open the elevator floor door, they turn the triangular key to drive the floor door lock to open through the paddle, wire rope connection and other structures.

[0003] For the paddle unlocking method, the paddle is driven by the rotation of the triangular lock core, and the paddle drives the lever connected to the landing door lock hook to rotate, so that the landing door lock is opened. However, as the height of the landing door increases, the required lever length becomes longer. When the paddle and lever rotation angle increases to a certain extent when the landing door is unlocked, there is a risk that the locked lever and the lock seat will separate, causing the unlocking failure.

[0004] For the wire rope unlocking method, as the number of unlocking attempts increases, the wire rope will become fatigued. When the wire rope reaches its life span, there is a risk of breakage, resulting in unlocking failure. Summary of the invention

[0005] Based on this, it is necessary to provide an elevator floor door unlocking device and an elevator floor door to ensure that the floor door can be unlocked smoothly and reduce the difficulty of unlocking.

[0006] An elevator door unlocking device, comprising:

[0007] A landing door lock assembly, the landing door lock assembly comprising a landing door lock hook for rotatably mounting on a landing door hanging plate;

[0008] A triangular lock assembly, the triangular lock assembly comprising a lock body and a lock shaft rotatably connected to the lock body, the lock shaft being rotatable relative to the lock body around the axial direction of the lock shaft;

[0009] An unlocking lever and a locking lever stopper, wherein the locking lever stopper is connected to the locking shaft and can rotate synchronously with the locking shaft; one end of the unlocking lever is connected to the landing door lock hook, and the other end extends to the rotation path of the locking lever stopper, and the locking lever stopper can cooperate with the unlocking lever when it rotates, thereby driving the unlocking lever to rotate so that the landing door lock hook can rotate and open.

[0010] In one of the embodiments, an unlocking portion is provided on the side of the lock rod stopper facing the unlocking lever, and the unlocking lever extends from one end of the unlocking lever away from the floor door lock hook to the rotation path of the unlocking portion, and the unlocking portion can cooperate with the unlocking lever when the lock rod stopper rotates; the unlocking portion includes an unlocking column, and the unlocking column is protruding from the side of the lock rod stopper facing the unlocking lever.

[0011] In one of the embodiments, the connection position between the lock rod stopper and the lock shaft and the unlocking portion are both located on the symmetry axis of the lock rod stopper.

[0012] In one embodiment, the unlocking lever includes a first lever section and a second lever section, one end of the first lever section is connected to the floor door lock hook, and the other end extends to the rotation path of the lock rod block seat, and the second lever section is transversely connected to the end of the first lever section away from the floor door lock hook.

[0013] In one of the embodiments, the elevator floor door unlocking device also includes a base, the base is connected to the lock body, the base is provided with a limiting portion, the limiting portion extends from the side of the base opposite to the rotation direction of the lock rod stop seat toward the side where the lock rod stop seat is located, and the limiting portion is used to cooperate with the side of the lock rod stop seat when the lock rod stop seat is reset.

[0014] In one embodiment, the base includes a first seat plate, a first connecting plate and a second seat plate, the first seat plate is used to fit the inner side of the layer door panel and is connected to the lock body, the second seat plate is staggered with the first seat plate, and the second seat plate is arranged close to the layer door lock assembly relative to the first seat plate, and the two sides of the first connecting plate are respectively connected to the first seat plate and the second seat plate; the limiting portion extends from the side of the second seat plate opposite to the rotation direction of the lock rod stopper toward the side where the lock rod stopper is located.

[0015] In one embodiment, the lock rod block seat includes a third seat plate, a second connecting plate and a fourth seat plate, the third seat plate is arranged opposite to the first seat plate and connected to the lock body, the fourth seat plate is arranged on a side of the second seat plate away from the first seat plate and is arranged opposite to the second seat plate, one side of the second connecting plate is connected to the third seat plate, and the other side is connected to the fourth seat plate, and an unlocking portion is provided on the side of the fourth seat plate facing the base.

[0016] In one embodiment, the elevator floor door unlocking device also includes a reset member and a base, the base is connected to the lock body, one end of the reset member is connected to the base, and the other end is connected to the lock rod stop seat, and the reset member is used to drive the lock rod stop seat to reset when the floor door lock hook is closed.

[0017] In one of the embodiments, an unlocking portion is provided on the side of the lock rod stopper facing the unlocking lever, and the unlocking lever extends from one end of the floor door lock hook to the rotation path of the unlocking portion; the elevator floor door unlocking device also includes a first mounting member and a second mounting member, the first mounting member extends from the base to the side of the lock rod stopper away from the unlocking portion, and the second mounting member is arranged on the side of the lock rod stopper away from the unlocking portion; the reset member is arranged on the side of the lock rod stopper away from the unlocking portion, one end of the reset member is arranged on the first mounting member, and the other end is arranged on the second mounting member.

[0018] An elevator floor door comprises the elevator floor door unlocking device, wherein the elevator floor door unlocking device is used to be arranged in a door knife area.

[0019] The above-mentioned elevator floor door unlocking device and elevator floor door are provided with a lock rod stopper on the lock shaft, one end of the unlocking lever is connected to the floor door lock hook, and the other end extends to the rotation path of the lock rod stopper. When unlocking the floor door, insert the triangular key into the lock body, turn the triangular key, the triangular key drives the lock shaft to rotate relative to the lock body around the axial direction of the lock shaft, and then drives the lock rod stopper to rotate, so that the lock rod stopper and the unlocking lever collide. Then, continue to turn the triangular key to drive the lock rod stopper to continue to rotate, and the unlocking lever drives the floor door lock hook to lift up under the action of the lock rod stopper, so as to realize the unlocking of the floor door. Thus, compared with the unlocking method using a paddle, in this embodiment, a lock rod stopper is arranged on the lock shaft of the triangular lock assembly, and the lock rod stopper drives the unlocking lever to rotate to unlock the landing door, so that the lock rod stopper can be prevented from being out of the range of the unlocking lever during the unlocking process, ensuring that the landing door can be unlocked smoothly and reducing the difficulty of unlocking; at the same time, the lock rod stopper can play a windproof role for the unlocking lever, preventing the unlocking lever from generating a floor door lock assembly unlocking torque under the action of vertical wind pressure during the up and down movement of the car, causing the floor door lock assembly to be instantly disconnected and causing the elevator to stop suddenly. In addition, during the high-speed operation of the elevator, the unlocking lever and the like will not shake, ensuring the stability of the elevator floor door unlocking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1This is a structural schematic diagram of an elevator landing door in a locked state according to an embodiment of the present invention;

[0023] Figure 2 for Figure 1 The structural schematic diagram of the elevator landing door shown is in an unlocked state;

[0024] Figure 3 A schematic diagram of the structure of an elevator door unlocking device according to an embodiment of the present invention;

[0025] Figure 4 for Figure 3 A side view of the elevator landing door unlocking device shown;

[0026] Figure 5 for Figure 4 A local enlarged schematic diagram of the middle A;

[0027] Figure 6 for Figure 3 The structural schematic diagram of the triangular lock assembly of the elevator floor door unlocking device is shown.

[0028] Explanation of the accompanying drawings: 10. Land door lock assembly; 11. Land door lock hook; 20. Triangular lock assembly; 21. Lock body; 22. Lock shaft; 23. First nut; 24. First washer; 25. Open retaining ring; 26. Second nut; 27. Second washer; 30. Base; 31. First seat plate; 32. First connecting plate; 33. Second seat plate; 331. Limiting part; 332. First mounting part; 40. Unlocking lever; 41. First lever section; 42. Second lever section; 50. Locking lever stop seat; 51. Third seat plate; 52. Second connecting plate; 53. Fourth seat plate; 531. Unlocking part; 532. Second mounting part; 60. Resetting part; 70. Door knife. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] See also Figure 1 , Figure 3 , Figure 4 and Figure 5The elevator landing door unlocking device of one embodiment of the present invention comprises a landing door lock assembly 10, a triangular lock assembly 20, an unlocking lever 40 and a lock lever stopper 50. The landing door lock assembly 10 comprises a landing door lock hook 11, and the landing door lock hook 11 is used to be rotatably mounted on the landing door hanging plate. The triangular lock assembly 20 comprises a lock body 21 and a lock shaft 22 rotatably connected to the lock body 21, and the lock shaft 22 can rotate relative to the lock body 21 around the axial direction of the lock shaft 22. The lock lever stopper 50 is connected to the lock shaft 22 and can rotate synchronously with the lock shaft 22. One end of the unlocking lever 40 is connected to the landing door lock hook 11, and the other end extends to the rotation path of the lock lever stopper 50. The lock lever stopper 50 can cooperate with the unlocking lever 40 when it rotates, driving the unlocking lever 40 to rotate so that the landing door lock hook 11 rotates and opens.

[0031] Optionally, the triangular lock assembly 20 further includes an open retaining ring 25, which is disposed between the lock body 21 and the lock shaft 22. By providing the open retaining ring 25, the lock shaft 22 and the lock body 21 are not separated, and the lock shaft 22 can rotate relative to the lock body 21.

[0032] Optionally, the landing door lock assembly 10 further includes a landing door lock static wheel and a landing door lock dynamic wheel, and the landing door lock dynamic wheel is fixed to the landing door lock hook 11. When the landing door is unlocked, the triangular key is inserted into the lock body 21, and the triangular key is turned. The triangular key drives the lock shaft 22 to rotate relative to the lock body 21 around the axial direction of the lock shaft 22, and then drives the lock rod stopper 50 to rotate synchronously. During the rotation of the lock rod stopper 50, the lock rod stopper 50 contacts and cooperates with the unlocking lever 40, driving the unlocking lever 40 to rotate, so that the landing door lock hook 11 and the landing door lock dynamic wheel rotate. When the landing door lock dynamic wheel is squeezed and approaches the landing door lock static wheel, the landing door lock hook 11 is gradually lifted to achieve the unlocking of the landing door.

[0033] In the above elevator landing door unlocking device, a lock rod stopper 50 is arranged on the lock shaft 22, one end of the unlocking lever 40 is connected to the landing door lock hook 11, and the other end extends to the rotation path of the lock rod stopper 50. When unlocking the landing door, insert the triangular key into the lock body 21, turn the triangular key, the triangular key drives the lock shaft 22 to rotate relative to the lock body 21 around the axial direction of the lock shaft 22, and then drives the lock rod stopper 50 to rotate, so that the lock rod stopper 50 conflicts with the unlocking lever 40. Then, continue to turn the triangular key to drive the lock rod stopper 50 to continue to rotate, and the unlocking lever 40 drives the landing door lock hook 11 to lift up under the action of the lock rod stopper 50, so as to realize the unlocking of the landing door. Thus, compared with the unlocking method with a paddle, in this embodiment, a lock rod stopper 50 is arranged on the lock shaft 22 of the triangular lock assembly 20, and the lock rod stopper 50 drives the unlocking lever 40 to rotate to realize the unlocking of the landing door, so that the lock rod stopper 50 can be prevented from being out of the range of the unlocking lever 40 during the unlocking process, ensuring that the landing door can be unlocked smoothly and reducing the difficulty of unlocking; at the same time, the lock rod stopper 50 can play a windproof role for the unlocking lever 40, preventing the unlocking lever 40 from generating the unlocking torque of the landing door lock assembly 10 under the action of the vertical wind pressure generated during the up and down movement of the car, causing the landing door lock assembly 10 to be broken instantly and causing the elevator to stop suddenly. In addition, during the high-speed operation of the elevator, the unlocking lever 40 and the like will not shake, ensuring the stability of the elevator landing door unlocking device.

[0034] After the unlocking action is completed, the door lock hook 11 is pressed downward under the action of gravity, driving the unlocking lever 40 to rotate in the opposite direction, and the unlocking lever 40 contacts the locking lever stopper 50, driving the locking lever stopper 50 to rotate in the opposite direction, so that the locking lever stopper 50 is reset. Of course, the locking lever stopper 50 can also be reset by other auxiliary components.

[0035] In one embodiment, the lock rod stopper 50 is provided with an unlocking portion 51 on one side facing the unlocking lever 40, and the unlocking lever 40 extends from the side away from the landing door lock assembly 10 to the rotation path of the unlocking portion 51. When unlocking the landing door, the triangular key is turned, and the triangular key drives the lock shaft 22 to rotate, and then drives the lock rod stopper 50 to rotate, so that the unlocking portion 51 conflicts with the unlocking lever 40. Then, the triangular key is continued to be turned, driving the lock rod stopper 50 to continue to rotate, and the unlocking lever 40 drives the landing door lock hook 11 to lift up under the action of the unlocking portion 51, so as to realize the unlocking of the landing door.

[0036] It should be noted that, see Figure 3 When the landing door lock hook 11 is closed, the unlocking lever 40 and the unlocking portion 531 are at a certain distance in the horizontal direction, that is, when the landing door is unlocked, the unlocking portion 531 will not collide with the unlocking lever 40 until the lock bar stopper 50 rotates a certain angle. In this way, it can prevent the unlocking lever 40 from touching the unlocking portion 531 to generate noise and increase vibration energy when the landing door lock is subjected to external impact or wind pressure vibration.

[0037] Further, see Figure 4 and Figure 5 The unlocking portion 531 includes an unlocking column, which is convexly arranged on a side of the lock rod stopper 50 facing the unlocking lever 40.

[0038] In one embodiment, see Figure 3 The connection position between the lock rod stopper 50 and the lock shaft 22 and the unlocking portion 531 are both arranged on the symmetry axis of the lock rod stopper 50. For ease of understanding, S is used to represent the symmetry axis. In this way, during the process of unlocking the landing door, the torsion force required to turn the triangular key can be reduced, and the stability of the elevator landing door unlocking device can be improved.

[0039] In one embodiment, see Figure 3 , Figure 4 and Figure 5 The elevator landing door unlocking device also includes a base 30, which is connected to the lock body 21. The base 30 is provided with a limiting portion 331, which extends from the side of the base 30 opposite to the rotation direction of the lock rod stopper 50 to the side where the lock rod stopper 50 is located, and the limiting portion 331 is used to abut against the side of the lock rod stopper 50 when the lock rod stopper 50 is reset. In this way, the limiting portion 331 is provided on the side of the base 30 opposite to the rotation direction of the lock rod stopper 50, and when the lock rod stopper 50 is reset, the limiting portion 331 abuts against the lock rod stopper 50, so that when the landing door is vibrated, the unlocking portion 531 will not touch the unlocking lever 40 and generate an additional unlocking torque.

[0040] Optionally, the limiting portion 331 is a limiting bent edge, which is bent from the side of the base 30 opposite to the rotation direction of the lock rod stopper 50 to the side where the lock rod stopper 50 is located. Of course, in other embodiments, the limiting portion 331 includes a limiting plate, and the limiting plate can be fixed to the side of the base 30 opposite to the rotation direction of the lock rod stopper 50 by welding or other methods.

[0041] Further, see Figure 4 and Figure 5 The base 30 includes a first seat plate 31, a first connecting plate 32 and a second seat plate 33. The first seat plate 31 is used to fit the inner side of the layer door panel and is connected to the lock body 21. The second seat plate 33 is staggered with the first seat plate 31, and the second seat plate 33 is arranged close to the layer door lock assembly 10 relative to the first seat plate 31. The two sides of the first connecting plate 32 are respectively connected to the first seat plate 31 and the second seat plate 33. The limiting portion 331 extends from the side of the second seat plate 33 opposite to the rotation direction of the lock rod stopper 50 to the side where the lock rod stopper 50 is located. In this way, it can be ensured that the base 30 is installed on the lock body 21 of the triangular lock assembly 20, and it can also be ensured that the limiting portion 331 of the base 30 can be in contact with the side of the lock rod stopper 50 when the lock rod stopper 50 is reset.

[0042] Specifically, see Figure 4 , Figure 5 and Figure 6 The first seat plate 31 is provided with a first through hole adapted to the lock body 21, and the base 30 is sleeved on the lock body 21 through the first through hole. The triangular lock assembly 20 further includes a first nut 23, which is sleeved on the lock body 21 and is tightened with the thread on the surface of the lock body 21, thereby fixing the base 30 on the lock body 21. Specifically, the triangular lock assembly 20 further includes a first washer 24, which is sleeved on the lock body 21 and is located between the first nut 23 and the first seat plate 31.

[0043] In one embodiment, see Figure 4 and Figure 5 The lock rod stopper 50 includes a third seat plate 51, a second connecting plate 52 and a fourth seat plate 53. The third seat plate 51 is arranged opposite to the first seat plate 31 and connected to the lock body 21. The fourth seat plate 53 is arranged on a side of the second seat plate 33 away from the first seat plate 31 and is arranged opposite to the second seat plate 33. One side of the second connecting plate 52 is connected to the third seat plate 51, and the other side is connected to the fourth seat plate 53. The unlocking portion 531 is arranged on a side of the fourth seat plate 53 facing the base 30. In this way, it can be ensured that the lock rod stopper 50 is installed on the lock shaft 22 of the triangular lock assembly 20, and it can also be ensured that the unlocking lever 40 cooperates with the unlocking portion 531.

[0044] Further, see Figure 4 , Figure 5 and Figure 6 The third seat plate 51 is provided with a second through hole, and the lock rod stopper 50 is sleeved on the lock shaft 22 through the second through hole. The triangular lock assembly 20 also includes a second nut 26, which is sleeved on the lock shaft 22 and fixes the lock rod stopper 50 to the lock shaft 22. The triangular lock assembly 20 also includes a second washer 27, which is provided between the third seat plate 51 and the second nut 26.

[0045] In one embodiment, see Figure 3 , Figure 4 and Figure 5 The elevator landing door unlocking device also includes a reset member 60. One end of the reset member 60 is connected to the base 30, and the other end is connected to the lock rod stopper 50. The reset member 60 is used to drive the lock rod stopper 50 to reset when the landing door lock hook 11 is closed. Optionally, the reset member 60 is an elastic member. When the lock rod stopper 50 rotates to unlock the landing door lock hook 11, the reset member 60 is in a stretched state. After the unlocking action is completed, the lock rod stopper 50 rotates in the opposite direction under the pull of the reset member 60, so that the lock rod stopper 50 is reset.

[0046] It should be noted that even if the reset member 60 falls off or fails due to breakage, when the lock rod stopper 50 deviates to the left and the unlocking portion 531 is close to the unlocking lever 40, the self-locking torque of the floor door lock assembly 10 and the locking torque formed by the unlocking lever 40 can be relied upon to overcome the unlocking torque formed by the lock rod stopper 50, thereby ensuring that the floor door lock hook 11 is not lifted.

[0047] It should be noted that even if the reset member 60 falls off or fails due to breakage, when the landing door lock is closed, the landing door lock hook 11 can drive the unlock lever 40 to contact the unlocking portion 531, so that the lock lever stopper 50 is reset to the initial position.

[0048] Further, see Figure 3 , Figure 4 and Figure 5 The elevator door unlocking device further includes a first mounting member 332 and a second mounting member 532. The first mounting member 332 extends from the base 30 to the side of the lock rod stopper 50 away from the unlocking portion 531, and the second mounting member 532 is arranged on the side of the lock rod stopper 50 away from the unlocking portion 531. Specifically, the first mounting member 332 extends from the second seat plate 33 to the side of the lock rod stopper 50 away from the unlocking portion 531, and the second mounting member 532 is arranged on the side of the fourth seat plate 53 away from the unlocking portion 531; wherein the length of the first mounting member 332 is greater than the length of the second mounting member 532. The reset member 60 is arranged on the side of the lock rod stopper 50 away from the unlocking portion 531, and one end of the reset member 60 is arranged on the first mounting member 332, and the other end is arranged on the second mounting member 532. In this way, the reset member 60 and the unlocking portion 531 are respectively located on both sides of the lock rod stopper 50, so that the distance between the base 30 and the lock rod stopper 50 can be reduced, and the space occupied by the elevator door unlocking device can be reduced.

[0049] Specifically, see Figure 3 The second mounting member 532 is located on the symmetry axis of the locking rod stopper 50 .

[0050] In one embodiment, see Figure 3The unlocking lever 40 includes a first lever section 41 and a second lever section 42. One end of the first lever section 41 is connected to the landing door lock hook 11, and the other end extends to the height position where the lock lever stopper 50 is located. The second lever section 42 is transversely connected to the end of the first lever section 41 away from the landing door lock hook 11. Specifically, the extension direction of the first lever section 41 intersects with the extension direction of the second lever section 42, for example, the first lever section 41 and the second lever section 42 are connected to form an L shape. When the floor door lock assembly 10 is in a fully open state, the floor door lock moving wheel is tangent to the floor door lock static wheel, that is, the floor door lock moving wheel conflicts with the floor door lock static wheel, and the floor door lock hook 11 reaches the limit position. The unlocking lever 40 cannot continue to move, and the connection position of the first lever section 41 and the second lever section 42 conflicts with the unlocking portion 531, thereby limiting the lock rod stopper 50 to prevent the lock rod stopper 50 from rotating too much, causing the reset member 60 to be over-tensioned and damaged.

[0051] Specifically, see Figure 3 The connection position between the unlock lever 40 and the landing door lock hook 11 is outside the door knife 70 area, the first lever section 41 is located in the inner area of ​​the door knife 70, and the center of the unlock lever 40 is away from the axis of the landing door lock hook 11 to ensure the locking force of the landing door lock assembly. The unlock lever 40 does not protrude outside the landing door lock moving wheel and the landing door lock static wheel in the depth direction to prevent the car door components from hitting the elevator landing door unlocking device and causing damage to it when the elevator is running.

[0052] See also Figure 1 and Figure 2 An elevator floor door according to an embodiment of the present invention comprises the elevator floor door unlocking device according to any one of the above embodiments.

[0053] The above elevator landing door has a lock rod stopper 50 on the lock shaft 22, one end of the unlocking lever 40 is connected to the landing door lock hook 11, and the other end extends to the rotation path of the lock rod stopper 50. When unlocking the landing door, insert the triangular key into the lock body 21, turn the triangular key, the triangular key drives the lock shaft 22 to rotate relative to the lock body 21 around the axial direction of the lock shaft 22, and then drives the lock rod stopper 50 to rotate, so that the lock rod stopper 50 conflicts with the unlocking lever 40. Then, continue to turn the triangular key to drive the lock rod stopper 50 to continue to rotate, and the unlocking lever 40 drives the landing door lock hook 11 to lift up under the action of the lock rod stopper 50, so as to unlock the landing door. Thus, compared with the unlocking method with a paddle, in this embodiment, a lock rod stopper 50 is arranged on the lock shaft 22 of the triangular lock assembly 20, and the lock rod stopper 50 drives the unlocking lever 40 to rotate to realize the unlocking of the landing door, so that the lock rod stopper 50 can be prevented from being out of the range of the unlocking lever 40 during the unlocking process, ensuring that the landing door can be unlocked smoothly and reducing the difficulty of unlocking; at the same time, the lock rod stopper 50 can play a windproof role for the unlocking lever 40, preventing the unlocking lever 40 from generating the unlocking torque of the landing door lock assembly 10 under the action of the vertical wind pressure generated during the up and down movement of the car, causing the landing door lock assembly 10 to be broken instantly and causing the elevator to stop suddenly. In addition, during the high-speed operation of the elevator, the unlocking lever 40 and the like will not shake, ensuring the stability of the elevator landing door unlocking device.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An elevator door unlocking device, characterized in that: include: A landing door lock assembly, the landing door lock assembly comprising a landing door lock hook for rotatably mounting on a landing door hanging plate; A triangular lock assembly, the triangular lock assembly comprising a lock body and a lock shaft rotatably connected to the lock body, the lock shaft being rotatable relative to the lock body around the axial direction of the lock shaft; The lock lever and the lock shaft can be connected to each other and can rotate synchronously with the lock shaft, and the lock lever stopper is provided with an unlocking part on one side of the lock lever; one end of the lock lever is connected to the landing door lock hook, and the unlocking part is extended to the rotation path of the unlocking part when the lock lever stopper is rotated, and the unlocking part can cooperate with the unlock lever to drive the unlock lever to rotate so that the landing door lock hook is rotated and opened; the lock lever comprises a first lever section and a second lever section, one end of the first lever section is connected to the landing door lock hook, and the other end extends to the rotation path of the lock lever stopper, and the second lever section is transversely connected to the end of the first lever section away from the landing door lock hook, the first lever section and the second lever section are connected to form an L shape, and the connection position of the first lever section and the second lever section is used to interfere with the unlocking part to achieve the limitation of the lock lever stopper; A base, the base is connected to the lock body, the base is provided with a limiting portion, the limiting portion extends from a side of the base opposite to the rotation direction of the lock rod stop seat toward a side where the lock rod stop seat is located, the limiting portion is used to abut and cooperate with a side portion of the lock rod stop seat when the lock rod stop seat is reset, so that the unlocking lever and the unlocking portion are spaced in the horizontal direction; A reset member, one end of which is connected to the base, and the other end of which is connected to the lock rod stopper, and the reset member is used to drive the lock rod stopper to reset when the landing door lock hook is closed.

2. The elevator door unlocking device according to claim 1, characterized in that: The unlocking portion comprises an unlocking column, and the unlocking column is convexly arranged on a side of the lock rod stopper facing the unlocking lever.

3. The elevator door unlocking device according to claim 2, characterized in that: The connection position between the lock rod stopper and the lock shaft and the unlocking portion are both located on the symmetry axis of the lock rod stopper.

4. The elevator door unlocking device according to claim 1, characterized in that: The connection position between the unlocking lever and the floor door lock hook is used to be arranged outside the door knife area, and the first lever section is used to be arranged in the inner area of ​​the door knife, and the center of the unlocking lever is away from the axis of the floor door lock hook.

5. The elevator door unlocking device according to claim 1, characterized in that: The base includes a first seat plate, a first connecting plate and a second seat plate, the first seat plate is used to fit the inner side of the layer door panel and is connected to the lock body, the second seat plate is staggered with the first seat plate, and the second seat plate is arranged close to the layer door lock assembly relative to the first seat plate, and the two sides of the first connecting plate are respectively connected to the first seat plate and the second seat plate; the limiting portion extends from the side of the second seat plate opposite to the rotation direction of the lock rod stopper toward the side where the lock rod stopper is located.

6. The elevator door unlocking device according to claim 5, characterized in that: The first seat plate is provided with a first through hole adapted to the lock body, and the base is sleeved on the lock body through the first through hole; the triangular lock assembly also includes a first nut, which is sleeved on the lock body and tightened with the thread on the surface of the lock body to fix the base on the lock body.

7. The elevator door unlocking device according to claim 5, characterized in that: The lock rod stopper includes a third seat plate, a second connecting plate and a fourth seat plate. The third seat plate is arranged opposite to the first seat plate and connected to the lock body. The fourth seat plate is arranged on a side of the second seat plate away from the first seat plate and is arranged opposite to the second seat plate. One side of the second connecting plate is connected to the third seat plate, and the other side is connected to the fourth seat plate. An unlocking portion is provided on the side of the fourth seat plate facing the base.

8. The elevator door unlocking device according to claim 1, characterized in that: The elevator floor door unlocking device also includes a first mounting member and a second mounting member, the first mounting member extends from the base to the side of the lock rod stop away from the unlocking part, and the second mounting member is arranged on the side of the lock rod stop away from the unlocking part; the reset member is arranged on the side of the lock rod stop away from the unlocking part, one end of the reset member is arranged on the first mounting member, and the other end is arranged on the second mounting member.

9. The elevator door unlocking device according to claim 8, characterized in that: The second mounting member is located on the symmetry axis of the locking rod stopper.

10. An elevator landing door, characterized in that: It comprises the elevator floor door unlocking device as described in any one of claims 1 to 9, and the elevator floor door unlocking device is used to be arranged in the door knife area.

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