Elevator landing door structure and elevator

Abstract

The elevator landing door structure comprises a pit unlocking mechanism arranged on a sill, the pit unlocking mechanism comprises a first connecting rod, a second connecting rod, an auxiliary rod and a hook, the first connecting rod is rotationally connected with the second connecting rod, one end of the first connecting rod is rotationally connected with the sill, and the other end of the second connecting rod is rotationally connected with the auxiliary rod. One end of the second connecting rod is fixedly connected with the hook, a matching hole is formed in one end of the auxiliary rod, the auxiliary rod is used for being matched with the two ends of the second connecting rod to jack up and / or pull down the second connecting rod, and the hook is used for hooking the steel wire rope. According to the elevator landing door structure, the pit unlocking mechanism is arranged on the sill, the steel wire rope is matched with the pit unlocking mechanism through the auxiliary rod, maintenance personnel in a pit can pull the steel wire rope by pulling the auxiliary rod downwards, and then the landing door lock and the landing door are opened; the force in the vertical direction can be converted into the force in the horizontal direction during unlocking in the deep pit, and maintenance personnel can open the landing door in the deep pit conveniently.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator landing door structure and an elevator including the elevator landing door structure. Background Technology

[0002] In existing technology, when the elevator is in a deep pit, the elevator door lock is mainly opened by a steel wire rope connected to the elevator door head. Since the existing design requires a lateral force to open the lock and open the door, in the deep pit, the maintenance personnel are 2 to 3 meters below the sill, making it difficult to provide a lateral force to open the lock. This makes the existing pit unlocking device unable to meet the requirements of the national standard. Utility Model Content

[0003] In view of this, in order to overcome the shortcomings of the prior art, this utility model provides an improved elevator landing door structure and an elevator.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] One objective of this utility model is to provide an elevator landing door structure, including a landing door, a sill, a landing door lock, and a steel wire rope. One end of the steel wire rope is fixedly connected to the landing door lock, and the other end of the steel wire rope is fixedly connected to the side of the landing door near the pit. The elevator landing door structure also includes a pit unlocking mechanism disposed on the sill. The pit unlocking mechanism includes a first connecting rod, a second connecting rod, an auxiliary rod, and a hook. The first connecting rod and the second connecting rod are rotatably connected. One end of the first connecting rod is rotatably connected to the sill, and one end of the second connecting rod is fixedly connected to the hook. One end of the auxiliary rod has a mating hole, and the auxiliary rod is used to cooperate with both ends of the second connecting rod to lift and / or pull down the second connecting rod. The hook is used to hook the steel wire rope.

[0006] By installing a pit unlocking mechanism on the sill, and using an auxiliary rod to coordinate with the steel cable, maintenance personnel in the pit can pull the auxiliary rod downwards to pull the steel cable, thereby opening the landing door lock and then opening the landing door. In other words, the pit unlocking mechanism converts vertical force into horizontal force, making unlocking operations in deep pits much easier for maintenance personnel.

[0007] According to a preferred embodiment of the present invention, the pit unlocking mechanism further includes a fixed bracket, which includes a first side plate and a second side plate that are perpendicular to each other and fixedly connected. The second side plate has a notch extending downward from its top edge in the middle. The first side plate is fixedly connected to the sill, and one end of the second side plate is rotatably connected to the end of the first connecting rod away from the second connecting rod.

[0008] According to a preferred embodiment of the present invention, the first connecting rod and the second connecting rod are rotatably connected by a first pin. The hook is disposed on the side of the second connecting rod away from the first connecting rod and close to the landing door. A second pin is disposed on the side of the second connecting rod away from the first connecting rod and away from the landing door. The ends of the first pin and the second pin away from the second connecting rod both extend in the direction away from the landing door.

[0009] According to a preferred embodiment of the present invention, the mating hole has a first hole portion and a second hole portion disposed opposite to each other, the first hole portion being located above the second hole portion, and the diameter of the mating hole gradually increasing from the first hole portion towards the center of the mating hole and gradually decreasing from the center of the mating hole towards the second hole portion. The design of the mating hole allows the auxiliary rod to both engage with the second pin to push the second connecting rod upwards and engage with the first pin to pull the first connecting rod and the second connecting rod as a whole downwards.

[0010] According to a preferred embodiment of the present invention, the second hole is used to hook the end of the second pin to push the second connecting rod upward, and the first hole is used to hook the end of the first pin to pull the second connecting rod downward.

[0011] According to a preferred embodiment of this utility model, a fixing pin is fixedly installed on the side of the landing door near the pit. The end of the wire rope away from the landing door lock passes around the fixing pin and is fixedly connected to the landing door. The portion of the wire rope between the end away from the landing door lock and the fixing pin is a mating section. The mating section is inclined, and the fixing pin is located below the end of the wire rope away from the landing door lock. The mating section facilitates the hook to catch the wire rope, thereby enabling the wire rope to be pulled to unlock the landing door lock when the auxiliary rod is pulled down, and the landing door to be opened by continuously pulling down the auxiliary rod.

[0012] According to a preferred embodiment of the present invention, the pit unlocking mechanism has a first state, an intermediate state, and a second state. When the pit unlocking mechanism is in the first state, the landing door is closed, the hook is accommodated in the notch, and both the first connecting rod and the second connecting rod are located below the sill. When the pit unlocking mechanism is in the second and third states, the hook engages the mating section, the first connecting rod is located below the sill, a part of the second connecting rod is located above the sill, and the other part of the second connecting rod is located below the sill. In this invention, when the pit unlocking mechanism is in the first state, that is, when both the landing door lock and the landing door are closed, the pit unlocking mechanism is separated from the steel wire rope on the landing door. When unlocking is required, the auxiliary rod is first taken out, and the auxiliary rod is raised so that the end with the mating hole is close to the second pin until the second hole of the mating hole hooks the end of the second pin. The maintenance personnel continue to push the auxiliary rod upward until the hook at one end of the second connecting rod hooks the mating section of the steel wire rope. At this time, the first connecting rod and the second connecting rod are set at an obtuse angle, and neither the landing door lock nor the landing door is opened. Subsequently, the maintenance personnel removed the auxiliary rod from the second pin and hooked the first hole of the auxiliary rod onto one end of the first pin. They then pulled the auxiliary rod downwards, causing the first and second connecting rods to rotate around the first pin and move closer to each other. The ends of the first and second connecting rods connected to each other moved downwards, thereby driving the hook to pull the connecting section of the wire rope to unlock the landing door lock and open the elevator landing door. When the landing door is fully opened, the pit unlocking mechanism is in the third state, at which point the first and second connecting rods are set at an acute angle.

[0013] According to a preferred embodiment of the present invention, when the pit unlocking mechanism is in the second state, the first connecting rod and the second connecting rod are set at an obtuse angle; when the pit unlocking mechanism is in the third state, the landing door is opened, and the first connecting rod and the second connecting rod are set at an acute angle.

[0014] According to a preferred embodiment of this utility model, the distance from the fixing pin to the sill is 0-1m, and the length of the auxiliary rod is 0.2-3m. In some embodiments of this utility model, the length of the auxiliary rod is related to the depth of the pit, the distance from the fixing pin to the sill is related to the length of the wire rope, and it is also necessary to ensure that maintenance personnel standing in the pit can use the auxiliary rod to hook the hook onto the matching section of the wire rope.

[0015] Another objective of this invention is to provide an elevator that includes the elevator landing door structure described above.

[0016] Compared with the prior art, the advantages of this utility model are as follows: This utility model provides an elevator landing door structure and elevator. By setting a pit unlocking mechanism on the sill and using an auxiliary rod to coordinate the steel wire rope with the pit unlocking mechanism, maintenance personnel in the pit can pull the steel wire rope by pulling the auxiliary rod downwards, thereby opening the landing door lock and further opening the landing door. This achieves the conversion of vertical force into horizontal force when unlocking in a deep pit, making the unlocking operation in a deep pit more convenient for maintenance personnel and solving the problem of difficulty in unlocking in deep pits. Furthermore, the pit unlocking mechanism of this utility model is not limited by the shaft environment and has good applicability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main view of the elevator door structure when the pit unlocking mechanism is in the first state in a preferred embodiment of this utility model.

[0019] Figure 2 This is a front view schematic diagram of the elevator landing door structure when the pit unlocking mechanism is in the second state in a preferred embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the main view of the elevator landing door structure when the pit unlocking mechanism is in the third state in a preferred embodiment of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the pit unlocking mechanism after the auxiliary rod is hidden in a preferred embodiment of the present invention;

[0022] The attached figures are labeled as follows:

[0023] Landing door-1, sill-2, landing door lock-3, wire rope-4, mating section-41, pit unlocking mechanism-5, first connecting rod-51, second connecting rod-52, auxiliary rod-53, mating hole-531, first hole-5311, second hole-5312, hook-54, first side plate-55, second side plate-56, notch-561, first pin-57, second pin-58, fixing pin-6. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0025] See Figures 1 to 4 This embodiment provides an elevator, including an elevator landing door structure, wherein the elevator landing door structure includes a landing door 1, a sill 2, a landing door lock 3, a steel wire rope 4, and a pit unlocking mechanism 5. The pit unlocking mechanism 5 is installed on the sill 2 and can cooperate with the steel wire rope 4. When elevator maintenance personnel stand in the pit, they can open the landing door lock 3 and the landing door 1 through the pit unlocking mechanism 5. A fixing pin 6 is fixedly installed on the side of the landing door 1 near the pit. One end of the steel wire rope 4 is fixedly connected to the landing door lock 3, and the end of the steel wire rope 4 away from the landing door lock 3 passes around the fixing pin 6 and is fixedly connected to the side of the landing door 1 near the pit. The distance from the fixing pin 6 to the sill 2 is 0 to 1 m.

[0026] Furthermore, the pit unlocking mechanism 5 includes a first connecting rod 51, a second connecting rod 52, an auxiliary rod 53, a hook 54, and a fixed bracket, such as... Figure 4 As shown, the fixed bracket includes a first side plate 55 and a second side plate 56 that are perpendicular to each other and fixedly connected. The second side plate 56 has a notch 561 extending downward from its top edge in the middle. The first side plate 55 is fixedly connected to the sill 2. One end of the second side plate 56 is rotatably connected to the end of the first connecting rod 51 away from the second connecting rod 52. The first connecting rod 51 and the second connecting rod 52 are rotatably connected by a first pin 57. The hook 54 is fixedly connected to the side of the second connecting rod 52 away from the first connecting rod 51 and close to the landing door 1. A second pin 58 is also provided on the side of the second connecting rod 52 away from the first connecting rod 51 and away from the landing door 1. The ends of the first pin 57 and the second pin 58 away from the second connecting rod 52 both extend in the direction away from the landing door 1.

[0027] Specifically, one end of the auxiliary rod 53 is provided with a mating hole 531. The mating hole 531 has a first hole portion 5311 and a second hole portion 5312 arranged opposite to each other, with the first hole portion 5311 located above the second hole portion 5312. The diameter of the mating hole 531 gradually increases from the first hole portion 5311 towards the center of the mating hole 531 and gradually decreases from the center of the mating hole 531 towards the second hole portion 5312. The second hole portion 5312 of the mating hole 531 is used to hook the outwardly extending end of the second pin 58 to push the second connecting rod 52 upward. The first hole portion 5311 of the mating hole 531 is used to hook the outwardly extending end of the first pin 57 to pull the second connecting rod 52 downward. In addition, considering the depth of the pit, the length of the auxiliary rod 53 is set to 0.2 to 3m to ensure that maintenance personnel standing in the pit can reach the wire rope 4 through the auxiliary rod 53 to open the landing door lock 3 and the landing door 1.

[0028] Furthermore, the portion of the wire rope 4 between the end away from the landing door lock 3 and the fixing pin 6 is designated as the mating section 41. The mating section 41 is inclined, and the fixing pin 6 is located below the end of the wire rope 4 away from the landing door lock 3. The straight line containing the mating section 41 forms an acute angle with the length extension direction of the sill 2. The mating section 41 is designed to facilitate the hook 54 to catch the wire rope 4, thereby enabling the wire rope 4 to be pulled down to unlock the landing door lock 3 when the auxiliary rod 53 is pulled down, and the landing door 1 to be opened by continuously pulling down the auxiliary rod 53.

[0029] like Figures 1 to 3 As shown, the pit unlocking mechanism 5 in this embodiment has a first state, an intermediate state, and a second state, wherein, as... Figure 1 As shown, in the first state of the pit unlocking mechanism 5, both the landing door lock 3 and the landing door 1 are closed, and at this time, the pit unlocking mechanism 5 is separated from the steel wire rope 4 on the landing door 1. Figure 2 As shown, the second state of the pit unlocking mechanism 5 is the state where the landing door lock 3 is about to open but not yet opened. At this time, the hook 54 on one end of the second connecting rod 52 has just hooked the cooperating section 41 of the wire rope 4 under the action of the auxiliary rod 53, but the auxiliary rod 53 has not yet been pulled down. Figure 3As shown, the third state of the pit unlocking mechanism 5 is when the landing door 1 is fully opened. At this time, both the first link 51 and the second link 52 have rotated downwards by a certain angle under the action of the auxiliary rod 53. Specifically, when the pit unlocking mechanism 5 is in the first state, the hook 54 is accommodated in the notch 561, and both the first link 51 and the second link 52 are located below the sill 2. When the pit unlocking mechanism 5 is in the second and third states, the hook 54 hooks onto the mating section 41, the first link 51 is located below the sill 2, a part of the second link 52 is located above the sill 2, and the other part of the second link 52 is located below the sill 2. In addition, when the pit unlocking mechanism 5 is in the second state, the first link 51 and the second link 52 are set at an obtuse angle; when the pit unlocking mechanism 5 is in the third state, the landing door 1 is open, and the first link 51 and the second link 52 are set at an acute angle. Furthermore, in all three states, the first pin 57 is located below the sill 2. When the pit unlocking mechanism 5 is in the first state, the distance between the first pin 57 and the sill 2 is the farthest; when the pit unlocking mechanism 5 is in the second state, the distance between the first pin 57 and the sill 2 is the shortest.

[0030] In this embodiment, the process of using the pit unlocking mechanism 5 to open the landing door lock 3 and landing door 1 is as follows:

[0031] When unlocking is required, first take out the auxiliary rod 53, lift the auxiliary rod 53 and bring the end with the mating hole 531 close to the second pin 58 until the second hole 5312 of the mating hole 531 hooks the outward extension end of the second pin 58. The maintenance personnel continue to push the auxiliary rod 53 upward until the hook 54 at one end of the second connecting rod 52 hooks the mating section 41 of the wire rope 4. At this time, the first connecting rod 51 and the second connecting rod 52 are set at an obtuse angle, and the landing door lock 3 and the landing door 1 are not opened. Subsequently, the maintenance personnel removed the auxiliary rod 53 from the second pin 58 and hooked the first hole 5311 of the auxiliary rod 53 onto the outward-extending end of the first pin 57. Then, they pulled the auxiliary rod 53 downward to drive the first connecting rod 51 and the second connecting rod 52 to rotate around the first pin 57 and move closer to each other. The ends of the first connecting rod 51 and the second connecting rod 52 that are connected to each other both move downward, thereby driving the hook 54 to pull the cooperating section 41 of the wire rope 4 to unlock the landing door lock 3 and open the elevator landing door 1 until the landing door 1 is fully opened. At this time, the pit unlocking mechanism 5 is in the third state, and the first connecting rod 51 and the second connecting rod 52 are set at an acute angle.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. An elevator landing door structure, comprising a landing door, a sill, a landing door lock, and a steel wire rope, wherein one end of the steel wire rope is fixedly connected to the landing door lock, and the other end of the steel wire rope is fixedly connected to the side of the landing door near the pit, characterized in that, The elevator landing door structure also includes a pit unlocking mechanism installed on the sill. The pit unlocking mechanism includes a first connecting rod, a second connecting rod, an auxiliary rod, and a hook. The first connecting rod and the second connecting rod are rotatably connected. One end of the first connecting rod is rotatably connected to the sill, and one end of the second connecting rod is fixedly connected to the hook. One end of the auxiliary rod has a mating hole. The auxiliary rod is used to cooperate with both ends of the second connecting rod to lift and / or pull down the second connecting rod. The hook is used to hook the wire rope.

2. The elevator landing door structure according to claim 1, characterized in that The pit unlocking mechanism also includes a fixed bracket, which includes a first side plate and a second side plate that are perpendicular to each other and fixedly connected. The second side plate has a notch in the middle of its top edge pointing downwards. The first side plate is fixedly connected to the sill, and one end of the second side plate is rotatably connected to the end of the first connecting rod away from the second connecting rod.

3. The elevator landing door structure according to claim 2, characterized in that The first link and the second link are rotatably connected by a first pin. The hook is located on the side of the second link away from the first link and close to the landing door. The second link is located on the side of the second link away from the first link and away from the landing door. The ends of the first pin and the second pin away from the second link both extend away from the landing door.

4. The elevator landing door structure according to claim 3, characterized in that The mating hole has a first hole portion and a second hole portion arranged opposite to each other, the first hole portion being located above the second hole portion, and the diameter of the mating hole gradually increases from the first hole portion toward the center of the mating hole and gradually decreases from the center of the mating hole toward the second hole portion.

5. The elevator landing door structure according to claim 4, characterized in that The second hole is used to hook the end of the second pin to push the second connecting rod upward, and the first hole is used to hook the end of the first pin to pull the second connecting rod downward.

6. The elevator landing door structure according to claim 3, characterized in that A fixing pin is also fixedly installed on the side of the landing door near the pit. The end of the steel wire rope away from the landing door lock passes around the fixing pin and is fixedly connected to the landing door. The part between the end of the steel wire rope away from the landing door lock and the fixing pin is a mating section. The mating section is inclined and the fixing pin is located below the end of the steel wire rope away from the landing door lock.

7. The elevator landing door structure according to claim 6, characterized in that The pit unlocking mechanism has a first state, an intermediate state, and a second state. When the pit unlocking mechanism is in the first state, the landing door is closed, the hook is accommodated in the notch, and both the first and second connecting rods are located below the sill. When the pit unlocking mechanism is in the second and third states, the hook engages with the mating section, the first connecting rod is located below the sill, a part of the second connecting rod is located above the sill, and the other part of the second connecting rod is located below the sill.

8. The elevator landing door structure according to claim 7, characterized in that When the pit unlocking mechanism is in the second state, the first link and the second link are set at an obtuse angle; when the pit unlocking mechanism is in the third state, the landing door is opened, and the first link and the second link are set at an acute angle.

9. The elevator landing door structure according to claim 6, characterized in that The distance from the fixing pin to the sill is 0 to 1 m, and the length of the auxiliary rod is 0.2 to 3 m.

10. An elevator, characterized by Includes the elevator landing door structure as described in any one of claims 1 to 9.

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