Automatic opening and closing device for construction hoist door

Abstract

The utility model discloses an automatic opening and closing device for a construction elevator door, which comprises an elevator door arranged in a door frame and an outer cage frame arranged on one side of the door frame, a car cam is arranged on one side of the outer cage frame close to the door frame, a stop plate is arranged on the door frame corresponding to the central position of the upper side of the elevator door, and the stop plate and the door frame are hinged in a turnover mode. The door frame is provided with a door lock assembly for driving the stop plate to turn over; the door lock assembly comprises a connecting rod assembly used for making contact with the car cam, the connecting rod assembly is provided with a limiting groove, and the door frame is provided with a limiting piece for clamping the limiting groove. By means of the device, the door of the construction hoist can be automatically jacked and locked in the lifting operation process of the construction hoist, the door of the construction hoist is effectively prevented from being opened in the lifting operation process of the hoist, and then the safety of workers in the construction hoist is guaranteed; and meanwhile, after the construction hoist stops, the door of the construction hoist can be automatically unlocked, so that the door of the construction hoist can be smoothly opened.

Description

Technical Field

[0001] This utility model belongs to the technical field of engineering construction equipment, and in particular relates to an automated opening and closing device for construction hoist doors. Background Technology

[0002] Construction elevator doors and floor safety doors are typically opened and closed manually by lifting or pulling, involving numerous steps. Often, when construction elevators are fully loaded or transporting large amounts of materials, the limited space makes manual operation inconvenient upon reaching the designated floor, making opening and closing the elevator doors difficult. Furthermore, building safety doors are frequently left open or not properly closed, significantly impacting worker safety. The purpose of this invention is to address these shortcomings by providing an automatic opening and closing device for construction elevator doors. This device is not only structurally safe and stable, capable of automatically opening and closing to ensure safety, but also convenient and quick to operate, improving construction efficiency and saving labor and machinery hours. Utility Model Content

[0003] The purpose of this utility model is to provide an automated opening and closing device for construction elevator doors. This device is not only structurally safe and stable, capable of automatically opening and closing to the correct position to ensure safety, but also convenient and quick to operate, which improves construction efficiency and saves labor and machine hours.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] An automated opening and closing device for a construction hoist door includes an elevator door installed in a door frame and an outer cage frame installed on one side of the door frame. A stop iron is installed on the side of the outer cage frame near the door frame. A stop plate is installed on the upper center of the door frame corresponding to the elevator door. The stop plate is hinged to the door frame in a flip-type manner. The door frame is equipped with a door lock assembly that drives the stop plate to flip.

[0006] The door lock assembly includes a linkage assembly for contacting a strike plate, the linkage assembly having a limiting groove, and the door frame having a limiting member for engaging the limiting groove.

[0007] Furthermore, the linkage assembly includes a first linkage and a second linkage with their mating ends aligned and installed. The other end of the first linkage is hinged to a stop plate, and the other end of the second linkage is equipped with a roller for contacting a stop block. A limiting groove is located at the mating position of the first linkage and the second linkage.

[0008] The contact iron has a smoothly transitioning inclined surface and a vertical surface corresponding to the contact side of the roller.

[0009] Furthermore, the first link has a connecting pin at the end corresponding to the second link, and the second link has a connecting groove at the end corresponding to the first link, for the connecting pin to slide in a limiting manner.

[0010] Furthermore, the stop plate has an L-shaped cross-section along its length, a rotating shaft is provided on one side of the stop plate, and a sleeve is provided on the other side. The door frame is provided with an ear plate for the end of the rotating shaft to be rotatably connected, and a reset torsion spring is sleeved on the rotating shaft.

[0011] Furthermore, a hinge shaft is provided between the stop plate and the first connecting rod on the side corresponding to the rotating shaft. One end of the hinge shaft is fixed to the rotating shaft, and the other end is hinged to the first connecting rod.

[0012] This utility model has the following advantages: a device can automatically lock the construction hoist door during the hoist's lifting and lowering operation, effectively preventing the construction hoist door from opening during the hoist's operation, thereby ensuring the safety of the personnel inside the construction hoist; at the same time, after the construction hoist stops, it can automatically unlock the construction hoist door, allowing the construction hoist door to open smoothly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0014] Figure 1 : Schematic diagram of the structure of this utility model.

[0015] Figure 2 : A schematic diagram of the elevator door in the closed state of this utility model.

[0016] Figure 3 : A schematic diagram of the elevator door opening process of this utility model.

[0017] Figure 4 : A schematic diagram of the elevator door in the open state of this utility model.

[0018] The components represented by each number in the attached diagram are listed below: door frame 11, elevator door 1, outer cage frame 2, bumper 7, stop plate 5, limiter 4, connecting rod assembly 6, first connecting rod 61, second connecting rod 62, roller 63, roller 63, rotating shaft 51, sleeve 52, hinge shaft 3. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] The principle of the automatic opening and closing device for construction hoist doors: When the construction hoist door is closed, the limiting groove on the door lock assembly engages and locks with the limiting piece 4. At this time, the door lock assembly cannot rotate freely, so that the stop plate 5 presses the elevator door 1 tightly and locks it in the door frame 11, thereby ensuring that the elevator door 1 cannot be opened during elevator operation, so as to ensure the safety of the personnel inside the elevator.

[0021] When the elevator reaches the corresponding floor, the free end of the door lock assembly contacts the contact plate 7 on the outer frame 2. Under the reaction force of the contact plate 7, the door lock assembly rotates away from the limiting member 4, thereby disengaging the limiting groove on the door lock assembly from the limiting member 4 and unlocking it. At this time, the stop plate 5 and the top of the door can rotate away from the elevator door 1, that is, they are no longer tightly locked against the elevator door 1. The staff can then pull the elevator door 1 towards the inside of the door frame 11 to open the elevator door 1.

[0022] The linkage assembly 6 includes a first link 61, a second link 62, and a roller 63. One end of the first link 61 is rotatably hinged to the end of the stop plate 5 away from the door frame 11. The other end of the first link 61 is connected to one end of the second link 62. The other end of the second link 62 is rotatably provided with a roller 63 corresponding to the end face of the contact iron 7.

[0023] A connecting pin is provided on the end of the first connecting rod 61 away from the stop plate 5, and a connecting groove that slides with the connecting pin is provided on the end of the second connecting rod 62 near the first connecting rod 61. The end of the first connecting rod 61 near the stop plate 5 is rotatably hinged to the hinge hole at one end of the stop plate 5 via the hinge shaft 3. The end of the stop plate 5 near the door frame 11 is rotatably connected to the ear plate on one side of the door frame 11 via the rotating shaft 51. The stop plate 5 is an L-shaped top frame, and a connecting sleeve 52 is provided on one end of the L-shaped top frame. The sleeve 52 is fixedly fitted on the outside of the rotating shaft 51, and the bend of the L-shaped top frame abuts against the side of the elevator door. A return torsion spring is fitted on the rotating shaft 51.

[0024] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. An automated opening and closing device for construction hoist doors, characterized in that: It includes an elevator door (1) set in a door frame (11) and an outer cage frame (2) set on one side of the door frame (11). A stop plate (7) is set on the side of the outer cage frame (2) near the door frame (11). A stop plate (5) is set on the upper center of the door frame (11) corresponding to the elevator door (1). The stop plate (5) is hinged to the door frame (11) in a flip-type manner. The door frame (11) is provided with a door lock assembly that drives the stop plate (5) to flip. The door lock assembly includes a linkage assembly (6) for contacting the strike plate (7), the linkage assembly (6) having a limiting groove, and the door frame (11) having a limiting member (4) for engaging the limiting groove.

2. The automated opening and closing device for construction hoist doors according to claim 1, characterized in that: The linkage assembly includes a first linkage (61) and a second linkage (62) with their mating ends aligned. The other end of the first linkage (61) is hinged to the stop plate (5), and the other end of the second linkage (62) is equipped with a roller (63) for contacting the stop block (7). The limiting groove is located at the mating position of the first linkage (61) and the second linkage (62).

3. The automated opening and closing device for construction hoist doors according to claim 2, characterized in that: The contact iron (7) has a smoothly transitioned inclined surface and a vertical surface on the contact side of the roller (63).

4. The automated opening and closing device for construction hoist doors according to claim 2, characterized in that: The first link (61) has a connecting pin at the end corresponding to the second link (62), and the second link (62) has a connecting groove at the end corresponding to the first link (61) for the connecting pin to slide in a limited position.

5. The automated opening and closing device for construction hoist doors according to claim 2, characterized in that: The stop plate (5) has an L-shaped cross section along its length. A rotating shaft (51) is provided on one side of the stop plate (5), and a sleeve (52) is provided on the other side. The door frame (11) is provided with an ear plate for the end of the rotating shaft (51) to be rotatably connected. A reset torsion spring is sleeved on the rotating shaft (51).

6. The automated opening and closing device for construction hoist doors according to claim 5, characterized in that: The stop plate (5) is also provided with a hinge shaft (3) between the side of the rotating shaft (51) and the first connecting rod (61). One end of the hinge shaft (3) is fixed to the rotating shaft (51), and the other end is hinged to the first connecting rod (61).

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