Intelligent building hoist door lock device

Abstract

The utility model discloses an intelligent construction hoist door lock device, and relates to the technical field of construction hoists, when the tail end of the bottom of a linkage mechanism is subjected to resistance, the linkage mechanism slides on a door lock frame to drive a door lock tongue plate to do circular motion around a hinge point with the door lock frame; and after the tail end of the bottom of the linkage mechanism has no resistance, the linkage mechanism moves downwards on the door lock frame under the action of gravity, and the door lock tongue plate does circular motion around the direction opposite to the hinged point of the door lock frame. The linkage strip is matched with the trigger strip to replace a structure that a door lock tongue plate is overturned through a torsional spring in the prior art, the trigger strip touches the bottom to drive the linkage strip to move upwards to achieve overturning and withdrawing of the door lock tongue plate, and the door lock tongue plate is driven to overturn through gravity to be matched with a lock block for limiting after the bottom of the trigger strip touches the bottom. By means of the mode, the risk that in the prior art, the transverse rod is subjected to uneven horizontal torsion force and the torsion spring is aged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of construction elevators, in particular to an intelligent construction elevator door lock device. Background Art

[0002] A construction elevator, also known as a construction hoist, is a construction machine that uses a gear and rack meshing method or a wire rope lifting method to make the cage move vertically or obliquely for transporting construction workers, tools, equipment and materials. The door lock at the bottom of the cage door is an important component for the safety of the construction elevator. When the cage stops at the bottom floor, the cage door can drive the bottom cage door to open. The existing traditional intelligent elevator door lock control method adopts a side-sliding retraction structure control method. When the cage door is opened, the door lock tongue plate pops out the tongue tip through the side chute to play a role in interlocking the cage door and the bottom cage door.

[0003] However, in the prior art, after the cage door is about to fall, the cross bar of the door lock tongue plate drops to the side door card slot slide rail surface, and gradually retracts the door lock tongue plate. During this process, due to the horizontal shaking of the cage, the cross bar of the door lock tongue plate is subjected to uneven horizontal torsion, and the resistance of the door lock tongue plate to rotate and retract increases, which will cause accidental jamming and make the heavy block door lock unable to retract. At the same time, the door locks at the bottom of the cage door all adopt the torsion spring torsion ejection method. When used for a period of time, the torsion spring fails, and the door locks at the bottom of the cage door cannot play an interlocking role, directly endangering the construction progress and the personal safety of construction workers. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an intelligent construction elevator door lock device to solve the problems in the current market proposed in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: An intelligent construction elevator door lock device, comprising:

[0006] A door lock frame, which is installed on the cage door;

[0007] A door lock tongue plate, one end of which is hinged to the door lock frame through a pin shaft;

[0008] A linkage mechanism, which is movably installed on the door lock frame and has a linear sliding stroke, and the door lock tongue plate is hinged to the linkage mechanism;

[0009] When the bottom end of the linkage mechanism is subjected to resistance, it slides on the door lock frame and drives the door lock tongue plate to make a circular motion around the hinge point with the door lock frame;

[0010] After the bottom end of the linkage mechanism has no resistance, it moves downward on the door lock frame under the action of gravity, and the door lock tongue plate makes a circular motion in the opposite direction around the hinge point with the door lock frame.

[0011] Preferably, the door lock bracket is composed of a base and a housing installed inside the base.

[0012] Preferably, the housing is in a shape of a capital "J", and a slot for accommodating the door lock tongue plate is provided at the ridge. The door lock tongue plate is hinged to the housing through the pin shaft.

[0013] Preferably, the base is in a shape of a capital "U".

[0014] Preferably, the linkage mechanism includes a trigger bar that moves linearly and a linkage bar whose two ends are respectively hinged to the trigger bar and the door lock tongue plate through the pin shaft.

[0015] Preferably, the linkage bar is hinged to the door lock tongue plate near the axis of the turning shaft, and the other end of the linkage bar is hinged to the trigger bar near the top end.

[0016] Preferably, the trigger bar is bent forward by 90 degrees on the front side and bent backward by 90 degrees on the back side near the bending position of the front side.

[0017] Preferably, a slot is provided on the base, and the length dimension of the slot is the sliding stroke of the trigger bar. The trigger bar is located inside the slot at the positions perpendicular to the upper end and the lower end.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] In the present utility model, the linkage bar cooperates with the trigger bar to replace the structure in the prior art where the door lock tongue plate is flipped by a torsion spring. When the trigger bar touches the bottom, it drives the linkage bar to move upward to realize the flipping and retraction of the door lock tongue plate. After the bottom of the trigger bar is released from touching the bottom, the door lock tongue plate is driven by gravity to flip and cooperate with the lock block for limiting. By this way, the risks of uneven horizontal torsion force on the cross bar and aging of the torsion spring in the prior art are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the door lock of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the present utility model installed on the cage door;

[0022] Figure 3 is Figure 2 the side view cross-sectional structural diagram;

[0023] Figure 4 is a schematic structural diagram of the flipping structure of the door lock tongue plate of the present utility model.

[0024] In the figure: 1. Base; 2. Linkage bar; 3. Door lock tongue plate; 4. Housing; 5. Pin shaft; 6. Trigger bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4 , the present utility model provides an intelligent construction hoist door lock device, as shown in Figure 1 and Figure 2 , which includes: a door lock frame, a door lock tongue plate 3 and a linkage mechanism. The door lock frame is installed on the cage door; one end of the door lock tongue plate 3 is hinged to the door lock frame through a pin shaft 5; the linkage mechanism is movably installed on the door lock frame and has a linear sliding stroke, and the door lock tongue plate 3 is hinged to the linkage mechanism.

[0027] When the bottom end of the linkage mechanism is subjected to resistance, it slides on the door lock frame and drives the door lock tongue plate 3 to make a circular motion around the hinge point with the door lock frame.

[0028] After there is no resistance at the bottom end of the linkage mechanism, it moves downward on the door lock frame under the action of gravity, and the door lock tongue plate 3 makes a circular motion in the opposite direction around the hinge point with the door lock frame.

[0029] In a specific implementation, as shown in Figure 4 , the door lock frame is composed of a base 1 and a housing 4 installed in the base 1.

[0030] As a further improvement, the housing 4 is in a shape of a capital "J", and a slot for accommodating the door lock tongue plate 3 is opened at the ridge, and the door lock tongue plate 3 is hinged to the housing 4 through a pin shaft 5.

[0031] The base 1 is in a U shape, and the housing 4 is installed between the upper and lower walls of the base 1 to prevent the housing 4 from moving up and down under external force.

[0032] In a specific implementation, as shown in Figure 3 , the linkage mechanism includes a trigger bar 6 that moves linearly and a linkage bar 2 whose two ends are respectively hinged to the trigger bar 6 and the door lock tongue plate 3 through a pin shaft 5. The linkage bar 2 is hinged to the door lock tongue plate 3 near the axis of the turning shaft, and the other end of the linkage bar 2 is hinged to the trigger bar 6 near the top.

[0033] The trigger bar 6 is bent 90 degrees forward on the front side and 90 degrees backward near the bending position on the back side. A slot is opened on the base 1, and the length dimension of the slot is the sliding stroke of the trigger bar 6, and the trigger bar 6 at the perpendicular positions to the upper and lower ends is located in the slot.

[0034] It should be noted that when the cage door falls and closes, the trigger bar 6 touches the bottom and moves on the cage sill surface, driving the linkage bar 2 to rotate upward, and then pulling the door lock tongue plate 3 to retract.

[0035] When the cage door falls and opens, the bottom end of the trigger bar 6 is released from the bottom contact. Affected by gravity, the trigger bar 6 moves downward, and the linkage bar 2 rotates downward, and then pushes up the flip of the door lock tongue plate 3 to cooperate with the lock block. There is no carding and no mechanical dead point in this movement process. By this method, the risks of uneven horizontal torsion force on the cross bar and the aging of the torsion spring in the prior art are solved.

[0036] The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An intelligent construction elevator door lock device, characterized in that: include: A door lock frame, wherein the door lock frame is installed on the cage door; A door lock tongue plate (3), one end of the door lock tongue plate (3) being hinged to the door lock frame via a pin shaft (5); A linkage mechanism, the linkage mechanism is movably mounted on the door lock frame and has a linear sliding stroke, and the door lock tongue plate (3) is hingedly connected to the linkage mechanism; When the bottom end of the linkage mechanism encounters resistance, it slides on the door lock frame and drives the door lock tongue plate (3) to perform circular motion around the hinge point with the door lock frame; After the bottom end of the linkage mechanism has no resistance, it moves downward on the door lock frame due to the action of gravity, and the door lock tongue plate (3) performs a circular motion in the opposite direction to the hinge point of the door lock frame.

2. The intelligent construction elevator door lock device according to claim 1, characterized in that: The door lock frame is composed of a base (1) and a shell (4) installed in the base (1).

3. The intelligent construction elevator door lock device according to claim 2 is characterized in that: The housing (4) is in the shape of a Chinese character "J", and a groove for accommodating the door lock tongue plate (3) is provided at the back thereof; the door lock tongue plate (3) is hingedly connected to the housing (4) via the pin shaft (5).

4. The intelligent construction hoist door lock device according to claim 3 is characterized in that: The base (1) is U-shaped.

5. An intelligent construction elevator door lock device according to any one of claims 2 to 4, characterized in that: The linkage mechanism comprises a trigger bar (6) that performs linear motion and a linkage bar (2) whose two ends are respectively hinged to the trigger bar (6) and the door lock tongue plate (3) through the pin shaft (5).

6. The intelligent construction elevator door lock device according to claim 5, characterized in that: The linkage bar (2) is hinged to the door lock tongue plate (3) near the turning axis, and the other end of the linkage bar (2) is hinged to the trigger bar (6) near the top end.

7. The intelligent construction elevator door lock device according to claim 5, characterized in that: The trigger bar (6) is in a shape in which the front side is bent forward 90 degrees, and the back side is bent backward 90 degrees near the front side bend.

8. The intelligent construction elevator door lock device according to claim 7, characterized in that: The base (1) is provided with a slot, the length of which is equal to the sliding stroke of the trigger bar (6), and the portion of the trigger bar (6) perpendicular to the upper end and the lower end is located in the slot.

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