Elevator door pulley inspection tool

Abstract

The utility model discloses an elevator door pulley inspection tool which comprises an inner sleeve and an outer sleeve, the outer sleeve is arranged outside the inner sleeve, a positioning groove of an annular structure is formed in the outer ring face of the inner sleeve, the opening end of the outer sleeve is bent inwards to form a positioning part of an annular structure, and a positioning plate is inserted into the positioning groove. An annular gap for the inner sleeve to move is formed between the positioning part and the positioning groove, a motor for driving the inner sleeve to rotate is installed on the end face of the outer sleeve, and a plurality of vibration detection pieces are installed between the outer sleeve and the inner sleeve in an annular structure. According to the utility model, the structure is simple, the inner sleeve can be directly sleeved on the pulley to be inspected, the swing inspection of the pulley can be carried out through the rotation of the pulley and the combination of the vibration detection member, the use safety is increased, the condition of each pulley can be rapidly inspected through the sleeving mode, and the inspection efficiency is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator inspection, in particular to an inspection tool for elevator door pulleys. Background Art

[0002] The elevator door includes a landing door and a car door, which are usually composed of multiple components, such as doors, guide rail brackets, pulleys, sliders, door frames, and sill plates. These pulleys play a key role in the operation of the elevator door.

[0003] In elevator maintenance and repair, the inspection and maintenance of pulleys are also very important. However, the current inspection tools have a simple structure and can generally only check the wear or lubrication degree of the pulleys, and cannot check the jitter or swing of the pulleys. Jitter will affect the operation of the elevator, and once the swing is too large, it is easy to cause the pulley to slip and fall. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an inspection tool for elevator door pulleys, which can directly check the jitter of the pulleys by means of sleeving, so as to solve the problems put forward in the above background art.

[0005] The utility model is realized by the following technical solutions: an inspection tool for elevator door pulleys, including an inner sleeve and an outer sleeve. The outer sleeve is arranged outside the inner sleeve. An annular positioning groove is arranged on the outer circumferential surface of the inner sleeve. The open end of the outer sleeve bends inward to form an annular positioning portion. The positioning plate is inserted into the positioning groove, and an annular gap for the inner sleeve to move is formed between the positioning portion and the positioning groove. A motor for driving the inner sleeve to rotate is installed on the end surface of the outer sleeve. A plurality of vibration detection components are installed in an annular structure between the outer sleeve and the inner sleeve.

[0006] As a preferred technical solution, a fixing ring is installed on the end surface of the inner sleeve, a rubber block is installed inside the fixing ring, and a metal plate is embedded on the outer side end surface of the rubber block. The rotating shaft of the motor passes through the outer sleeve and is installed on the metal plate.

[0007] As a preferred technical solution, each vibration inspection component includes a fixing cylinder, a vibration sensor, and a contact piece. The contact pieces are annularly combined and arranged on the outer circumferential surface of the inner sleeve. The fixing cylinders are all installed on the inner circumferential surface of the outer sleeve and are all arranged opposite to the contact pieces. The detection ends of the vibration sensors are all installed on the outer side surfaces of the contact pieces, and the other ends are all inserted into the interiors of the fixing cylinders and are all installed with compression springs. The other ends of the compression springs are all installed on the inner wall surfaces of the fixing cylinders.

[0008] As a preferred technical solution, a plurality of weight-reducing grooves are arranged on the inner side surfaces of the contact pieces.

[0009] As a preferred technical solution, a rubber layer is installed inside the inner sleeve.

[0010] As a preferred technical solution, a handle is installed on the outer end face of the outer sleeve.

[0011] As a preferred technical solution, both the inner sleeve and the outer sleeve are made of stainless steel material.

[0012] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple. The inner sleeve can be directly sleeved on the pulley to be inspected, and the rotation of the inner sleeve can be driven by a motor. The rotation of the inner sleeve drives the pulley, and through the rotation of the pulley and in combination with the vibration detection member, the swinging of the pulley can be inspected, which increases the safety in use. Moreover, through the sleeving method, the conditions of each pulley can be quickly inspected, which increases the inspection efficiency. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a rear view of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the outer sleeve in the present utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the present utility model after removing the outer sleeve.

[0018] Among them, 1. Outer sleeve; 2. Inner sleeve; 3. Rubber layer; 4. Positioning part; 5. Handle; 6. Motor; 7. Contact piece; 8. Fixed cylinder; 9. Vibration sensor; 10. Positioning groove; 11. Fixed ring; 12. Rubber block; 13. Metal plate. Detailed Embodiment

[0019] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0020] All the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0021] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically recited, may be replaced by other equivalent or alternative features with similar purposes. That is, unless specifically recited, each feature is only an example of a series of equivalent or similar features.

[0022] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, an elevator door pulley inspection tool of the present utility model includes an inner sleeve 2 and an outer sleeve 1. The outer sleeve 1 is disposed outside the inner sleeve 2. A positioning groove 10 with an annular structure is provided on the outer circumferential surface of the inner sleeve 2. The open end of the outer sleeve 1 is bent inward to form a positioning portion 4 with an annular structure. A positioning plate is inserted into the positioning groove 10. An annular gap for the movement of the inner sleeve 2 is formed between the positioning portion 4 and the positioning groove 10. A motor 6 for driving the inner sleeve 2 to rotate is installed on the end surface of the outer sleeve 1. A plurality of vibration detection members are installed between the outer sleeve 1 and the inner sleeve 2 in an annular structure.

[0023] In this embodiment, a fixing ring 11 is installed on the end surface of the inner sleeve 2. A rubber block 12 is installed inside the fixing ring 11. A metal plate 13 is embeddedly installed on the outer end surface of the rubber block 12. The rotating shaft of the motor 6 passes through the outer sleeve 1 and is installed on the metal plate 13.

[0024] In this embodiment, the vibration inspection members all include a fixing cylinder 8, a vibration sensor 9, and a contact piece 7. The contact pieces 7 are annularly combined and arranged on the outer circumferential surface of the inner sleeve 2. The fixing cylinders 8 are all installed on the inner circumferential surface of the outer sleeve 1 and are all arranged opposite to the contact pieces 7. The detection ends of the vibration sensors 9 are all installed on the outer side surfaces of the contact pieces 7, and the other ends all penetrate into the inside of the fixing cylinders 8 and are all installed with compression springs. The other ends of the compression springs are all installed on the inner wall surfaces of the fixing cylinders 8. The compression springs enable the vibration sensors to have a backward lifting effect, avoiding the situation where the inner sleeve is limited and cannot rotate and shake.

[0025] Among them, the vibration sensors are all connected to wires, and the other ends of the wires can pass through the outer sleeve and be connected to a digital display for displaying the detected data, so that the user can read and analyze the data.

[0026] In this embodiment, a plurality of weight-reducing grooves are provided on the inner side surfaces of the contact pieces 7. The weight is reduced through the weight-reducing grooves, and the friction with the inner sleeve is also reduced.

[0027] In this embodiment, a rubber layer 3 is installed inside the inner sleeve 2, and the friction with the pulley is increased through the rubber layer.

[0028] In this embodiment, a handle 5 is installed on the outer end surface of the outer sleeve 1. Holding the device is facilitated through the handle, and carrying is facilitated.

[0029] In this embodiment, both the inner sleeve 2 and the outer sleeve 1 are made of stainless steel material, which increases the firmness and service life and avoids rusting.

[0030] During use, the inner sleeve can be directly sleeved on the pulley to be inspected, and the rubber layer is in contact with the outer circumferential surface of the pulley, increasing the contact friction with the pulley.

[0031] After the above is completed, start the motor. The start of the motor drives the metal plate, rubber block, fixed ring and inner sleeve. The rotation of the inner sleeve drives the pulley through friction, making the pulley in a rotating state. Among them, since there is an annular gap between the positioning portion and the positioning groove, and a rubber block is provided between the motor and the inner sleeve. Once the inner sleeve shakes, the vibration energy generated by the vibration acts on the inner sleeve, and when there is a radial displacement along the positioning portion, the moving process can squeeze the rubber block and the contact piece, so that the contact piece has a force to move outward. This squeezing force can push the vibration sensor, enabling the vibration sensor to detect different magnitudes of squeezing forces in various directions, thereby understanding whether the pulley is stably installed.

[0032] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that is thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. An elevator door pulley inspection tool, characterized in that: It includes an inner sleeve (2) and an outer sleeve (1). The outer sleeve (1) is arranged outside the inner sleeve (2). A positioning groove (10) with an annular structure is provided on the outer circumferential surface of the inner sleeve (2). The open end of the outer sleeve (1) is bent inward to form a positioning portion (4) with an annular structure. The positioning plate is inserted into the positioning groove (10). An annular gap for the movement of the inner sleeve (2) is formed between the positioning portion (4) and the positioning groove (10). A motor (6) for driving the inner sleeve (2) to rotate is installed on the end surface of the outer sleeve (1). A plurality of vibration detection components are installed in an annular structure between the outer sleeve (1) and the inner sleeve (2).

2. The elevator door pulley inspection tool according to claim 1, characterized in that: A fixing ring (11) is installed on the end surface of the inner sleeve (2). A rubber block (12) is installed inside the fixing ring (11). A metal plate (13) is embedded and installed on the outer side end surface of the rubber block (12). The rotating shaft of the motor (6) passes through the outer sleeve (1) and is installed on the metal plate (13).

3. The elevator door pulley inspection tool according to claim 1, characterized in that: The vibration inspection components all include a fixing cylinder (8), a vibration sensor (9) and a contact piece (7). The contact pieces (7) are annularly combined and arranged on the outer circumferential surface of the inner sleeve (2). The fixing cylinders (8) are all installed on the inner circumferential surface of the outer sleeve (1) and are all arranged opposite to the contact pieces (7). The detection ends of the vibration sensors (9) are all installed on the outer side surfaces of the contact pieces (7), and the other ends are all inserted into the inside of the fixing cylinders (8), and compression springs are all installed. The other ends of the compression springs are all installed on the inner wall surfaces of the fixing cylinders (8).

4. The elevator door pulley inspection tool according to claim 3, wherein: A plurality of weight-reducing grooves are provided on the inner side surfaces of the contact pieces (7).

5. The elevator door pulley inspection tool according to claim 1, characterized in that: A rubber layer (3) is installed inside the inner sleeve (2).

6. The elevator door pulley inspection tool according to claim 1, characterized in that: A handle (5) is installed on the outer side end surface of the outer sleeve (1).

7. The elevator door pulley inspection tool according to claim 1, characterized in that: Both the inner sleeve (2) and the outer sleeve (1) are made of stainless steel material.

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