Elevator door limiting device for elevator maintenance

Abstract

The utility model relates to the technical field of elevator maintenance equipment, and discloses an elevator door limiting device for elevator maintenance, which comprises a base, an upright post, a top seat, a limiting rod, a movable sleeve, a limiting support arm and a bidirectional push-pull structure, the bottom of the top seat is fixedly connected with a base through a stand column, the middle of a limiting rod is fixed to the front side of the top seat, a pair of movable sleeves are arranged on the two sides of the top seat in a left-right mirroring mode, the two movable sleeves are driven by a two-way push-pull structure arranged on the stand column to move oppositely or move back to back, and limiting supporting arms are fixed to the front sides of the movable sleeves. Compared with the prior art, the limiting device has the advantages that the threaded sleeve is rotated to move upwards or downwards, so that the limiting supporting arms on the two movable sleeves can be driven to move back to back or relatively, and the distance between the two limiting supporting arms can be adjusted according to the opening degree of an elevator door; the elevator door opening device can be suitable for the situation that elevator doors are different in opening degree, and the working efficiency of elevator maintenance operation is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment for elevator maintenance, and in particular to an elevator door limiting device for elevator maintenance. Background Art

[0002] An elevator is a vertical lift powered by an electric motor and equipped with a box-shaped cabin. It is used to transport people or goods in multi-story buildings. A vertical elevator consists of a car that runs between at least two vertical rigid guide rails. If an elevator breaks down, maintenance and repair are required. During repairs, the elevator doors must be secured.

[0003] At present, the existing limit device has a simple structure and a single function, and cannot adjust the limit extension distance according to the degree of door opening. As a result, the user needs to replace the limit device multiple times, which undoubtedly increases the user's labor and reduces the work efficiency of elevator maintenance operations. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the above technical difficulties and provide an elevator door limit device for elevator maintenance. When in use, the distance between the two limit arms can be adjusted according to the degree of opening of the elevator door, which is more practical.

[0005] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0006] An elevator door limit device for elevator maintenance comprises a base, a column, a top seat, a limit rod, a movable sleeve, a limit support arm and a two-way push-pull structure; the bottom of the top seat is fixedly connected to the base via the column, the middle part of the limit rod is fixed to the front side of the top seat, a pair of movable sleeves are arranged in left and right mirror images on both sides of the top seat, and the two movable sleeves are driven by the two-way push-pull structure arranged on the column to move relative to each other or move toward and away from each other, and a limit support arm is fixed to the front side of the movable sleeve.

[0007] As an improvement, the bidirectional push-pull structure includes a threaded sleeve and a connecting rod. The column is a threaded rod structure, and the threaded sleeve is threadedly connected to the column. The threaded sleeve is a cylindrical structure with a circular ring limit groove reserved on the outer wall. The movable sleeve is nested in the circular ring limit groove. The left and right sides are respectively hinged with connecting rods. The top of the connecting rod is rotatably connected to the rear side of the movable sleeve on the same side. This is used to conveniently adjust the relative movement or forward and backward movement of the two limit support arms.

[0008] As an improvement, a plurality of handles uniformly arranged along the circumference are integrally formed on the outer wall of the threaded sleeve to facilitate the rotation of the threaded sleeve.

[0009] As an improvement, an LED lamp is fixed on the upper side of the top seat, which can provide effective lighting effects for workers during elevator maintenance operations.

[0010] The advantages of this utility model compared with the prior art are:

[0011] When the utility model is in use, the threaded sleeve is rotated to move it upward or downward, which can drive the limit support arms on the two movable sleeves to move back and forth or move relative to each other, so that the distance between the two limit support arms can be adjusted according to the degree of opening of the elevator door, so that the utility model can be applied to situations with different degrees of opening of the elevator door, greatly improving the work efficiency of elevator maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0013] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 .

[0014] Figure 3 This is a schematic diagram of the structure of the utility model Figure 3 .

[0015] As shown in the figure: 1. Base; 2. Column; 3. Top seat; 4. Limit rod; 5. Movable sleeve; 6. Limit support arm; 7. Threaded sleeve; 8. Connecting rod; 9. Circular limit groove; 10. Handle; 11. T-shaped rod; 12. Soft rubber pad; 13. LED lamp. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusions.

[0017] The present invention will be described in further detail below with reference to the accompanying drawings.

[0018] An elevator door limit device for elevator maintenance, comprising:

[0019] Base 1, column 2, top seat 3, limiting rod 4, movable sleeve 5, limiting support arm 6 and two-way push-pull structure; the bottom of the top seat 3 is fixedly connected to the base 1 through the column 2, the middle of the limiting rod 4 is fixed to the front side of the top seat 3, and a pair of movable sleeves 5 are arranged on both sides of the top seat 3 in a mirrored manner. The limiting support arm 6 is fixed to the front side of the movable sleeve 5. The two-way push-pull structure includes a threaded sleeve 7 and a connecting rod 8; the column 2 is a threaded rod structure, and the threaded sleeve 7 is threadedly sleeved on the column 2. The threaded sleeve 7 is a cylindrical structure, and a circular ring limiting groove 9 is reserved on the outer wall. The movable sleeve 5 is nested in the circular ring limiting groove 9, and the left and right sides are respectively hinged with connecting rods 8. The top of the connecting rod 8 is rotatably connected to the rear side of the movable sleeve 5 on the same side. Five handles 10 evenly arranged along the circumference are integrally formed on the outer wall of the threaded sleeve 7;

[0020] An LED lamp 13 is fixedly mounted on the upper side of the top seat 3 . The LED lamp 13 is an existing device in common knowledge, and is a lamp with a built-in rechargeable battery.

[0021] As a preferred embodiment, a T-shaped rod 11 is integrally formed on the rear side of the movable sleeve 5. A through-hole is reserved at the top of the connecting rod 8, which is rotatably connected to the thin section of the T-shaped rod 11 through the through-hole. Soft rubber pads 12 are provided on opposite sides of the two limit arms 6 to effectively prevent damage to the elevator door caused by the limit arms 6 when they come into contact with it.

[0022] Taking a double-door elevator as an example, in the specific implementation of this embodiment:

[0023] Place the elevator door limiter stably on the elevator door of the faulty elevator, with the two limit arms 6 positioned between the two elevator doors. Then, turn the handle 10 clockwise to move the threaded sleeve 7 upward, thereby driving the two limit arms 6 to move backwards until they contact the two elevator doors, effectively restraining the elevator doors. The staff can then proceed with the elevator repair work.

[0024] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. An elevator door limiter for elevator maintenance, characterized by: The invention comprises a base (1), a column (2), a top seat (3), a limiting rod (4), a movable sleeve (5), a limiting support arm (6) and a bidirectional push-pull structure; the bottom of the top seat (3) is fixedly connected to the base (1) via the column (2); the middle of the limiting rod (4) is fixed to the front side of the top seat (3); a pair of movable sleeves (5) are arranged on both sides of the top seat (3) in a mirror-like manner; the two movable sleeves (5) are driven by the bidirectional push-pull structure arranged on the column (2) to move relative to each other or move forward and backward; and a limiting support arm (6) is fixed to the front side of the movable sleeve (5).

2. The elevator door limiter for elevator maintenance according to claim 1, characterized in that: The bidirectional push-pull structure comprises a threaded sleeve (7) and a connecting rod (8); the column (2) is a threaded rod structure, and the threaded sleeve (7) is threadedly sleeved on the column (2); the threaded sleeve (7) is a cylindrical structure, and a circular ring limiting groove (9) is reserved on the outer wall; the movable sleeve (5) is nested in the circular ring limiting groove (9), and the left and right sides are respectively hinged with connecting rods (8), and the top of the connecting rod (8) is rotatably connected to the rear side of the movable sleeve (5) on the same side.

3. The elevator door limiter for elevator maintenance according to claim 2, characterized in that: A plurality of handles (10) uniformly arranged along the circumference are integrally formed on the outer wall of the threaded sleeve (7).

4. The elevator door limiter for elevator maintenance according to claim 3, characterized in that: A T-shaped rod (11) is integrally formed on the rear side of the movable sleeve (5), and a through hole is reserved at the top of the connecting rod (8), which is rotatably sleeved on the thin section of the T-shaped rod (11) through the through hole.

5. The elevator door limiter for elevator maintenance according to claim 4, characterized in that: Soft rubber cushion layers (12) are respectively provided on opposite sides of the two position-limiting support arms (6).

6. The elevator door limiter for elevator maintenance according to claim 1, characterized in that: An LED lamp (13) is fixedly mounted on the upper side of the top seat (3).

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