Mechanical interlocking device for folding doors of an elevator

Abstract

The utility model belongs to construction lift field provides a lift folding door mechanical interlock device, including fixed base, fixed shaft, fixed pivot, baffle, swivel arm, arm, limit post and limit bump block. The fixed base is fixed on fixed block through bolt, the fixed shaft and fixed pivot are respectively covered into fixed base, the baffle is connected into whole with fixed shaft and fixed pivot through bolt respectively, baffle can rotate around fixed base, fixed pivot long axis end installs swivel arm, swivel arm follows fixed pivot rotation, swivel arm other end connects arm, the end of arm is equipped with gyro wheel, is equipped with the bayonet on arm, arm can rotate around swivel arm, arm is put on the inclined plane of limit post through self gravity, the limit bump block sets up on the layer door of cage stop position, with the gyro wheel opposite of arm. The utility model lift folding door mechanical interlock device, convenient to use, safe and reliable, can effectively prevent folding door accidental opening.

Description

Technical Field

[0001] This utility model belongs to the field of construction hoists, specifically a mechanical interlocking device for the folding door of a hoist. Background Technology

[0002] Construction hoists are commonly used in bridges, power plant chimneys, and other similar applications to facilitate the vertical transport of personnel or goods.

[0003] Due to the limited internal space in structures such as bridges and power plant chimneys, hoist cage doors are typically folding doors that open towards the cage. However, existing folding doors lack reliable mechanical interlocks, making it impossible to effectively prevent accidental opening of the folding doors during cage operation. Summary of the Invention

[0004] The purpose of this utility model is to overcome the defects in the prior art and provide a mechanical interlocking device for the folding door of an elevator, which is convenient to use, safe and reliable, and can effectively prevent the folding door from being opened accidentally.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: A mechanical interlocking device for a folding door of an elevator includes a fixed base, a fixed shaft, a fixed rotating shaft, a baffle, a rotating arm, a stop arm, a limit post, and a limit stop block. The fixed base is fixed to the fixed block with bolts. The fixed shaft and the fixed rotating shaft are respectively fitted onto the fixed base. The baffle is connected to the fixed shaft and the fixed rotating shaft as a whole with bolts. The baffle can rotate around the fixed base. A rotating arm is installed at the end of the long shaft of the fixed rotating shaft. The rotating arm rotates with the fixed rotating shaft. The other end of the rotating arm is connected to a bumper arm. The end of the bumper arm is provided with a roller. The bumper arm is provided with a locking slot. The bumper arm can rotate around the rotating arm. The bumper arm rests on the inclined surface of the limiting post by its own weight. The limiting bumper block is set on the landing door at the docking position of the hoist cage, opposite to the roller of the bumper arm. When the hoist cage is not in the docking position, when the folding door is opened, the baffle flips upward, driving the rotating arm to rotate in the same direction. The bumper arm slides upward along the limiting post. The locking slot on the bumper arm abuts against the limiting post and locks it, preventing the folding door from continuing to open, thus playing a locking role. When the hoist cage is in the docking position, when the folding door is opened, the baffle rotates upward, driving the bumper arm to move upward with the limiting bumper block, avoiding the limiting post, and the folding door can be opened normally.

[0006] In the above technical solution, the baffle has a G-shaped cross section. The baffle is installed on the outside of the fixed shaft and the fixed rotating shaft. At the same time, the bottom bends towards the folding door to press the folding door. The center of gravity of the baffle is located outside the center of the rotating shaft. The baffle automatically presses the folding door to prevent the folding door from shaking when the cage is running.

[0007] In the above technical solution, when the folding door is in the closed state, there is a gap of 1-3mm between the bumper arm and the bumper block, which can eliminate the friction noise when the cage moves up and down through the bumper block.

[0008] In the above technical solution, the fixed seat and the folding door share the door frame fixing block to ensure that the relative position of the baffle and the folding door is fixed.

[0009] In the above technical solution, a limiter is provided at the rear of the bumper arm. The limiter is fixed on the side wall of the cage and is connected to the cage control system. When the folding door is opened, the bumper arm is lifted upward, the limiter swing rod moves, cuts off the power to the cage, and prevents it from moving up and down.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. It effectively solves the mechanical interlocking problem of folding doors and prevents folding doors from opening at will; 2. A 1-3mm gap is set between the bumper arm and the bumper block to eliminate friction noise of the bumper block; 3. The position of the baffle and the folding door is relatively fixed, reducing the workload of interlocking installation and adjustment; 4. The center of gravity of the baffle is located outside the center of the rotating shaft, and the folding door is pressed tightly by the gravity of the baffle to prevent the folding door from shaking when the cage is running. Attached Figure Description

[0011] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0012] Figure 1 This is the front view of the mechanical interlocking device of this utility model.

[0013] Figure 2 This is a left view of the mechanical interlocking device of this utility model.

[0014] Figure 3 This is a right view of the mechanical interlocking device of this utility model.

[0015] Figure 4 This is an isometric drawing of the mechanical interlocking device of this utility model.

[0016] Figure 5 This is a diagram showing the locked state of the mechanical interlocking device of this utility model.

[0017] Figure 6 This is a diagram showing the open state of the mechanical interlocking device of this utility model.

[0018] Figure 7 This is a front view of the mechanical interlocking device of this utility model.

[0019] Figure 8 Left view of the mechanical interlocking device of this utility model.

[0020] Figure 9 Rear view of the mechanical interlocking device of this utility model (hidden part 7) after installation.

[0021] Figure 10 This is a cross-sectional view of the mechanical interlocking device of this utility model.

[0022] Among them: 1. Mechanical interlock, 2. Upper door frame, 3. Folding door, 4. Limiting block, 5. Limiter, 6. Fixing block, 7. Door frame baffle, 8. Baffle, 9. Fixing seat, 10. Fixing shaft, 11. Fixing pivot, 12. Rotating arm, 13. Bumper arm, 14. Limiting post. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figures 1 to 8 As shown, this embodiment provides a mechanical interlocking device for a folding door of an elevator, including a fixed block 6, a baffle 8, a fixed seat 9, a fixed shaft 10, a fixed rotating shaft 11, a rotating arm 12, a stop arm 13, a limiting stop block 4, and a limiting post 14. The fixed seat 9 is fixed to the fixed block 6 by bolts. The fixed shaft 10 and the fixed rotating shaft 11 are respectively fitted onto the fixed seat 9. The baffle 8 is bolted to both the fixed shaft 10 and the fixed rotating shaft 11 to form a whole. The baffle can rotate around the fixed seat 9. A rotating arm 12 is installed at the long shaft end of the fixed rotating shaft 11, and the rotating arm 12 rotates with the fixed rotating shaft 11. The other end of the rotating arm 12 is connected to the stop arm 13. The end of the stop arm is provided with a roller, and the stop arm has two latches (multiple latches are provided to prevent the first latch from failing to engage). The stop arm 13 can rotate around the rotating arm 12. The stop arm 13 rests on the inclined surface of the limiting post 14 (the limiting post 14 is wedge-shaped) by its own weight. Figure 6As shown in the diagram, the limiting block 4 is installed on the landing door at the cage's docking position, opposite to the roller of the blocking arm. When the cage is not in the docking position, when the folding door is opened, the baffle 8 flips upward, causing the rotating arm 12 to rotate in the same direction. The blocking arm slides upward along the limiting post 14, and the latch on the blocking arm 13 abuts against the limiting post 14 to lock it, preventing the folding door from continuing to open and thus acting as a lock. When the cage is in the docking position, when the folding door is opened, the baffle 8 rotates upward, causing the blocking arm 13 to move upward with the limiting block 4, avoiding the limiting post 14, and the folding door can continue to open.

[0027] like Figure 2 As shown, the baffle 8 has a G-shaped cross section. The baffle 8 is installed on the outside of the fixed shaft 10 and the fixed rotating shaft 11. At the same time, the bottom of the baffle bends towards the folding door to press it tightly. The center of gravity of the baffle is located outside the center of the rotating shaft. The baffle automatically presses the folding door to prevent the folding door from shaking when the cage is running.

[0028] like Figure 10 As shown, when the folding door is in the closed state, there is a 1-3mm gap between the bumper arm 13 and the limiting bumper block 4, which can eliminate the friction noise when the cage moves up and down through the bumper block.

[0029] like Figure 9 , Figure 10 As shown, the fixing seat 9 is installed on the upper door frame 2 of the folding door by bolts through the fixing block 6, sharing the same fixing block with the folding door, thereby ensuring that the relative position of the baffle and the folding door remains unchanged.

[0030] like Figure 8 , Figure 10 As shown, a limiter 5 is provided behind the bumper arm 13. The limiter 5 is fixed on the side wall (outer wall) of the cage. The limiter 5 is connected to the cage control system. When the folding door is opened, the bumper arm 13 is lifted upward, the limiter 5 swings, cuts off the power to the cage, and prevents it from moving up and down.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical interlocking device for a folding door of an elevator, characterized in that: The system includes a fixed block, a baffle, a fixed seat, a fixed shaft, a fixed rotating shaft, a rotating arm, a stop arm, a limiting stop block, and a limiting post. The fixed seat is fixed to the fixed block with bolts. The fixed shaft and the fixed rotating shaft are respectively fitted onto the fixed seat. The baffle is bolted to both the fixed shaft and the fixed rotating shaft to form a whole. The baffle can rotate around the fixed seat. A rotating arm is installed at the end of the long shaft of the fixed rotating shaft, and the rotating arm rotates with the fixed rotating shaft. The other end of the rotating arm is connected to the stop arm. The end of the stop arm is equipped with a roller, and the stop arm has a locking slot. The stop arm can rotate around the rotating arm. The arm rests on the inclined surface of the limiting post under its own weight. The limiting block is set on the landing door at the cage's docking position, opposite to the roller of the arm. When the cage is not in the docking position, when the folding door is opened, the baffle flips upward, causing the arm to rotate in the same direction. The arm moves upward along the limiting post, and the latch on the arm abuts against the limiting post to lock it, preventing the folding door from continuing to open, thus playing a locking role. When the cage is in the docking position, when the folding door is opened, the arm lifts upward along the limiting block to avoid the limiting post, and the folding door can continue to open.

2. The mechanical interlocking device for the folding door of the elevator according to claim 1, characterized in that: The baffle has a G-shaped cross section. The baffle is installed on the outside of the fixed shaft and the fixed rotating shaft. At the same time, the bottom of the baffle bends towards the folding door to press it tightly. The center of gravity of the baffle is located outside the center of the rotating shaft. The baffle automatically presses the folding door to prevent the folding door from shaking when the cage is running.

3. The mechanical interlocking device for the folding door of the elevator according to claim 1, characterized in that: When the folding door is closed, there is a 1-3mm gap between the bumper arm and the bumper block, which can eliminate the friction noise when the cage moves up and down through the bumper block.

4. The mechanical interlocking device for the folding door of the elevator according to claim 1, characterized in that: The fixing bracket is installed on the upper door frame of the folding door using bolts and a fixing block, sharing the same fixing block with the folding door, thus ensuring that the relative position of the baffle and the folding door remains unchanged.

5. The mechanical interlocking device for the folding door of the elevator according to claim 1, characterized in that: A limiter is provided at the rear of the arm, and the limiter is fixed to the side wall of the cage. The limiter is connected to the cage control system. When the folding door is opened, the arm is raised, the limiter swings, cuts off the power to the cage, and prevents it from moving up and down.

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