Elevator hall door unlocking device and elevator hall door unlocking method

Abstract

The present invention discloses an elevator hall door unlocking device and an elevator hall door unlocking method. The elevator hall door unlocking device comprises a rotating rod and a rope. The rotating rod comprises a first end, a second end and a connecting portion between the first end and the second end. One end of the rope is connected to an unlocking pull rod of the elevator hall door, and the other end is connected to the first end of the rotating rod. The connecting portion of the rotating rod is rotatably connected to a longitudinal rod or a transverse rod of a ladder arranged in a pit of an elevator shaft; an elevator maintenance personnel can pull the rope and drive the unlocking pull rod to an unlocking position by holding and pressing the second end of the rotating rod and the longitudinal rod or the transverse rod of the ladder with one hand, thereby realizing the unlocking of the elevator hall door. In the present invention, the elevator maintenance personnel always holds the ladder with one hand during the unlocking process, thereby effectively avoiding the risk of the elevator maintenance personnel falling from the ladder, and simplifying the steps of unlocking and opening the elevator hall door.

Description

Technical Field

[0001] The invention relates to an elevator hall door unlocking device and an elevator hall door unlocking method. Background Art

[0002] After entering the elevator shaft, if the hall door on the ground floor is closed, the elevator maintenance personnel need to use the unlocking device to unlock it. The existing unlocking method is to push and pull the unlocking wire horizontally, but because the unlocking wire is generally behind the hall door panel, if the pit is deep, the maintenance personnel cannot unlock it while standing in the pit. Instead, they need to stand on the ladder and operate the unlocking lever with one hand to unlock it, and use the other hand to pry open the hall door. This unlocking method is extremely inconvenient and there is a risk of people falling. Summary of the invention

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the present invention, there is provided an elevator hall door unlocking device, comprising: a rotating rod having a first end, a second end and a connecting portion between the first end and the second end; and a rope, one end of which is connected to an unlocking pull rod of the elevator hall door, and the other end is connected to the first end of the rotating rod. The connecting portion of the rotating rod is rotatably connected to a longitudinal rod or a transverse rod of a ladder arranged in a pit of an elevator shaft; an elevator maintenance person can pull the rope and drive the unlocking pull rod to an unlocking position by the rope by squeezing the second end of the rotating rod and the longitudinal rod or the transverse rod of the ladder with one hand, thereby unlocking the elevator hall door.

[0005] According to an exemplary embodiment of the present invention, the elevator hall door unlocking device further comprises a support member, the support member is fixedly connected to the longitudinal rod or the transverse rod of the ladder, and the connecting portion of the rotating rod is rotatably connected to the support member.

[0006] According to another exemplary embodiment of the present invention, the elevator maintenance personnel can hold the second end of the rotating rod, the supporting member and the longitudinal rod or the transverse rod of the ladder with one hand.

[0007] According to another exemplary embodiment of the present invention, the support member is detachably connected to the longitudinal rod or the transverse rod of the ladder.

[0008] According to another exemplary embodiment of the present invention, the elevator hall door unlocking device also includes a spring and a pressure plate, one end of the rope passes through the pressure plate and is welded to the pressure plate, and both ends of the spring respectively abut between the pressure plate and the crossbeam of the elevator hall door; when the elevator maintenance personnel grips the rotating rod, the spring is compressed; when the elevator maintenance personnel releases the rotating rod, the spring is released and drives one end of the rope to automatically return to the initial position.

[0009] According to another exemplary embodiment of the present invention, the elevator hall door unlocking device also includes a flexible sheath, one end of the flexible sheath is fixed to the crossbeam of the elevator hall door, and the other end is fixed to the support member; the rope passes through the flexible sheath, and the two ends of the rope extend from the two ends of the flexible sheath respectively.

[0010] According to another exemplary embodiment of the present invention, the support member is fixed to the longitudinal rod of the ladder, and the other end of the flexible sheath passes through the transverse rod of the ladder and is fixed to one end of the support member.

[0011] According to another exemplary embodiment of the present invention, the connection portion of the rotating rod protrudes toward the supporting member and is pivotally connected to the supporting member.

[0012] According to another exemplary embodiment of the present invention, the other end of the rope is detachably connected to the first end of the rotating rod.

[0013] According to another exemplary embodiment of the present invention, the other end of the flexible sheath is detachably connected to one end of the support member.

[0014] According to another aspect of the present invention, there is provided an elevator hall door unlocking method, comprising the following steps:

[0015] S100: providing the aforementioned elevator hall door unlocking device;

[0016] S200: The elevator maintenance personnel uses one hand to press the rotating rod of the elevator hall door unlocking device to unlock the elevator hall door;

[0017] S300: The elevator maintenance personnel holds the rotating rod and the ladder with one hand and uses the other hand to open the elevator hall door that has been unlocked; and

[0018] S400: The elevator maintenance personnel releases the rotating rod of the elevator hall door unlocking device and leaves the elevator shaft through the opened elevator hall door.

[0019] In the aforementioned exemplary embodiments of the present invention, the elevator maintenance personnel always holds the ladder with one hand during the unlocking process of the elevator hall door, thereby effectively avoiding the risk of the elevator maintenance personnel falling from the ladder and simplifying the steps of unlocking and opening the elevator hall door.

[0020] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram showing an elevator hall door unlocking device according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0023] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0024] According to an overall technical concept of the present invention, there is provided an elevator hall door unlocking device, comprising: a rotating rod having a first end, a second end and a connecting portion between the first end and the second end; and a rope, one end of which is connected to an unlocking pull rod of the elevator hall door, and the other end is connected to the first end of the rotating rod. The connecting portion of the rotating rod is rotatably connected to a longitudinal rod or a transverse rod of a ladder arranged in a pit of an elevator shaft; an elevator maintenance person can pull the rope and drive the unlocking pull rod to an unlocking position by the rope by squeezing the second end of the rotating rod and the longitudinal rod or the transverse rod of the ladder with one hand, thereby unlocking the elevator hall door.

[0025] Figure 1 A schematic diagram showing an elevator hall door unlocking device according to an exemplary embodiment of the present invention.

[0026] like Figure 1As shown, in the embodiment shown in the figure, the elevator hall door unlocking device mainly includes a rotating rod 4 and a rope 1. The rotating rod 4 has a first end 4a, a second end 4b and a connecting portion 4c located between the first end 4a and the second end 4b. One end 1a of the rope 1 is connected to the unlocking pull rod 10 of the elevator hall door, and the other end 1b is connected to the first end 4a of the rotating rod 4.

[0027] like Figure 1 As shown, in the illustrated embodiment, the connecting portion 4c of the rotating rod 4 is rotatably connected to the longitudinal rod 31 or the crossbar 32 of the ladder 30 disposed in the bottom pit of the elevator shaft. The elevator maintenance personnel can pull the rope 1 and drive the unlocking pull rod 10 to the unlocking position through the rope 1 by squeezing the second end 4b of the rotating rod 4 and the longitudinal rod 31 or the crossbar 32 of the ladder 30 with one hand, thereby unlocking the elevator hall door. Therefore, during the unlocking process, the elevator maintenance personnel always holds the ladder 30 with one hand, thereby effectively avoiding the risk of the elevator maintenance personnel falling from the ladder. In addition, the elevator maintenance personnel can unlock the elevator hall door by squeezing the rotating rod 4 with one hand, thereby simplifying the steps of unlocking and opening the elevator hall door.

[0028] like Figure 1 As shown, in the illustrated embodiment, the elevator hall door unlocking device further includes a support member 3, which is fixedly connected to the longitudinal rod 31 or the transverse rod 32 of the ladder 30. The connecting portion 4c of the rotating rod 4 is rotatably connected to the support member 3, thereby being rotatably connected to the longitudinal rod 31 or the transverse rod 32 of the ladder 30 through the support member 3. However, the present invention is not limited to the illustrated embodiment, and the connecting portion 4c of the rotating rod 4 can also be directly rotatably connected to the longitudinal rod 31 or the transverse rod 32 of the ladder 30.

[0029] like Figure 1 As shown, in the illustrated embodiment, the elevator maintenance personnel can hold the second end 4b of the rotating rod 4, the supporting member 3 and the longitudinal rod 31 or the transverse rod 32 of the ladder 30 with one hand.

[0030] like Figure 1 As shown, in the illustrated embodiment, the support member 3 is detachably connected to the longitudinal bar 31 or the transverse bar 32 of the ladder 30 .

[0031] like Figure 1 As shown, in the illustrated embodiment, the elevator hall door unlocking device further comprises a spring 5 and a pressure plate 6. One end 1a of the rope 1 passes through the pressure plate 6 and is welded to the pressure plate 6, and the two ends of the spring 5 are respectively against between the pressure plate 6 and the crossbeam 20 of the elevator hall door.

[0032] like Figure 1As shown, in the illustrated embodiment, when the elevator maintenance personnel squeezes the rotating rod 4, the rope 1 pulls the pressing plate 6, and the spring 5 is compressed by the pressing plate 6. When the elevator maintenance personnel releases the rotating rod 4, the spring 5 is released and drives one end 1a of the rope 1 to automatically return to the initial position.

[0033] like Figure 1 As shown, in the illustrated embodiment, the elevator hall door unlocking device further comprises a flexible sheath 2 , one end 2 a of the flexible sheath 2 is fixed to the crossbeam 20 of the elevator hall door, and the other end 2 b is fixed to the support member 3 .

[0034] like Figure 1 As shown, in the illustrated embodiment, the rope 1 passes through the flexible sheath 2, and two ends 1a, 1b of the rope 1 extend out from two ends 2a, 2b of the flexible sheath 2 respectively.

[0035] like Figure 1 As shown, in the illustrated embodiment, the support member 3 is fixed to the longitudinal rod 31 of the ladder 30, and the other end 2b of the flexible sheath 2 passes through the crossbar 32 of the ladder 30 and is fixed to one end 3a of the support member 3. However, the present invention is not limited to the illustrated embodiment, and the support member 3 may also be fixed to the crossbar 32 of the ladder 30.

[0036] like Figure 1 As shown, in the illustrated embodiment, the connection portion 4 c of the rotating lever 4 protrudes toward the supporting member 3 and is pivotally connected to the supporting member 3 .

[0037] like Figure 1 As shown, in the illustrated embodiment, the other end 1 b of the rope 1 is connected to the first end 4 a of the rotating rod 4 in a detachable manner.

[0038] like Figure 1 As shown, in the illustrated embodiment, the other end 2b of the flexible sheath 2 is detachably connected to one end 3a of the support member 3.

[0039] like Figure 1 As shown, in another exemplary embodiment of the present invention, a method for unlocking an elevator hall door is also disclosed, comprising the following steps:

[0040] S100: providing the aforementioned elevator hall door unlocking device;

[0041] S200: The elevator maintenance personnel uses one hand to press the rotating rod 4 of the elevator hall door unlocking device to unlock the elevator hall door;

[0042] S300: The elevator maintenance personnel holds the rotating rod and the ladder with one hand and uses the other hand to open the elevator hall door that has been unlocked; and

[0043] S400: The elevator maintenance personnel releases the rotating rod of the elevator hall door unlocking device and leaves the elevator shaft through the opened elevator hall door.

[0044] like Figure 1 As shown, in an exemplary embodiment of the present invention, the rope 1 may be a steel wire rope or other high-strength metal rope or composite rope. The flexible sheath 2 may be an elastic rubber sheath or other suitable flexible sheath.

[0045] Those skilled in the art can understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in various embodiments can be freely combined without causing conflicts in structure or principle.

[0046] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

[0047] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined by the claims and their equivalents.

[0048] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference signs in the claims shall not be construed as limiting the scope of the present invention.

Claims

1. An elevator hall door unlocking device, characterized in that: include: A rotating rod (4) having a first end (4a), a second end (4b), and a connecting portion (4c) located between the first end (4a) and the second end (4b); and A rope (1) having one end (1a) connected to an unlocking pull rod (10) of an elevator hall door and the other end (1b) connected to a first end (4a) of the rotating rod (4). The connecting portion (4c) of the rotating rod (4) is rotatably connected to a longitudinal rod (31) or a transverse rod (32) of a ladder (30) arranged in the bottom pit of the elevator shaft. The elevator maintenance personnel can pull the rope (1) and drive the unlocking pull rod (10) to the unlocking position through the rope (1) by squeezing the second end (4b) of the rotating rod (4) and the longitudinal rod (31) or the transverse rod (32) of the ladder (30) with one hand, thereby unlocking the elevator hall door.

2. The elevator hall door unlocking device according to claim 1, characterized in that: The elevator hall door unlocking device also includes a support member (3), the support member (3) is fixedly connected to the longitudinal rod (31) or the transverse rod (32) of the ladder (30), and the connecting portion (4c) of the rotating rod (4) is rotatably connected to the support member (3).

3. The elevator hall door unlocking device according to claim 2, characterized in that: The elevator maintenance personnel can hold the second end (4b) of the rotating rod (4), the support member (3) and the longitudinal rod (31) or the transverse rod (32) of the ladder (30) with one hand.

4. The elevator hall door unlocking device according to claim 2, characterized in that: The support member (3) is detachably connected to the longitudinal rod (31) or the transverse rod (32) of the ladder (30).

5. The elevator hall door unlocking device according to claim 1, characterized in that: The elevator hall door unlocking device further comprises a spring (5) and a pressure plate (6), one end (1a) of the rope (1) passes through the pressure plate (6) and is welded to the pressure plate (6), and two ends of the spring (5) respectively abut between the pressure plate (6) and the crossbeam (20) of the elevator hall door; When the elevator maintenance personnel squeezes the rotating rod (4), the spring (5) is compressed; When the elevator maintenance personnel releases the rotating rod (4), the spring (5) is released and drives one end (1a) of the rope (1) to automatically return to the initial position.

6. The elevator hall door unlocking device according to claim 2, characterized in that: The elevator hall door unlocking device further comprises a flexible sheath (2), one end (2a) of the flexible sheath (2) being fixed to the crossbeam (20) of the elevator hall door, and the other end (2b) of the flexible sheath (2) being fixed to the support member (3); The rope (1) passes through the flexible sheath (2), and two ends (1a, 1b) of the rope (1) extend out from two ends (2a, 2b) of the flexible sheath (2), respectively.

7. The elevator hall door unlocking device according to claim 6, characterized in that: The support member (3) is fixed to the longitudinal rod (31) of the ladder (30), and the other end (2b) of the flexible sheath (2) passes through the transverse rod (32) of the ladder (30) and is fixed to one end (3a) of the support member (3).

8. The elevator hall door unlocking device according to claim 2, characterized in that: The connecting portion (4c) of the rotating rod (4) protrudes toward the supporting member (3) and is pivotally connected to the supporting member (3).

9. The elevator hall door unlocking device according to claim 1, characterized in that: The other end (1b) of the rope (1) is detachably connected to the first end (4a) of the rotating rod (4).

10. The elevator hall door unlocking device according to claim 6, characterized in that: The other end (2b) of the flexible sheath (2) is detachably connected to one end (3a) of the support member (3).

11. A method for unlocking an elevator hall door, characterized in that: The following steps are involved: S100: providing an elevator hall door unlocking device as described in any one of claims 1 to 10; S200: The elevator maintenance personnel uses one hand to press the rotating rod (4) of the elevator hall door unlocking device to unlock the elevator hall door; S300: The elevator maintenance personnel holds the rotating rod and the ladder with one hand and uses the other hand to open the elevator hall door that has been unlocked; and S400: The elevator maintenance personnel releases the rotating rod of the elevator hall door unlocking device and leaves the elevator shaft through the opened elevator hall door.

Images