Device for monitoring a service hatch of an escalator

Abstract

The utility model discloses a device for monitoring the device of the maintenance cover plate of escalator, including corner piece, touch plate, electrical switch, the touch plate sets up on corner piece, and can move back and forth between the trigger position and the release position in the first direction, fixedly be equipped with the column on the touch plate, the column extends along the first direction, has the contact end for cooperating with the maintenance cover plate, be equipped with the spring between the touch plate and corner piece, the spring has the elastic force of drive touch plate to the trigger position movement, the electrical switch sets up on corner piece, and is located the side of touch plate, in the trigger position, the touch plate and the trigger end of electrical switch contact and make electrical switch be triggered, in the release position, the touch plate releases the trigger end of electrical switch and triggers. The utility model whole structure is small and compact, and the space is small, effectively satisfies the practical application demand of escalator, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of escalator technology, and in particular to a device for monitoring and inspecting escalator cover plates. Background Technology

[0002] like Figure 1 , 2 The diagram shows a prior art device for monitoring and maintenance covers on escalators. It employs a lever-type design and includes an angled base 1, a balance bar 11, a sleeve 12, fasteners 14, and an electrical switch 6. The balance bar 11 has a striking rod 15 welded to one end, a weight 13 welded to the other, and a small piece 16 welded to the middle. Under the action of the weight 13, the balance bar 11 is tilted. When the maintenance cover 7 is slowly closed, the striking rod 15 at one end of the balance bar 11 rotates, keeping the balance bar 11 balanced and maintaining a 2mm gap with the contact of the electrical switch 6. When the maintenance cover 7 is opened, the balance bar 11 naturally falls downwards due to the weight 13, and the small piece 16 touches the contact of the electrical switch 6, triggering the switch to cut off the safety circuit power and stop the escalator. This overall structure occupies a large space, making it difficult to install in compact machine room spaces and failing to meet the practical application requirements of escalators. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a device for monitoring and inspecting the cover plates of escalators. The device has a small and compact overall structure, occupies little space, effectively meets the practical application needs of escalators, and is highly practical.

[0004] The technical solution of this utility model is achieved as follows: a device for monitoring and inspecting the cover plate of an escalator, comprising an angled component, a contact plate, and an electrical switch;

[0005] The contact plate is disposed on the corner piece and can move back and forth between a trigger position and a release position in the first direction; a column is fixedly provided on the contact plate; the column extends along the first direction and has a contact end for cooperating with the inspection cover plate;

[0006] A spring is provided between the contact plate and the angular component; the spring has an elastic force that drives the contact plate to move toward the trigger position;

[0007] The electrical switch is mounted on the corner piece and located beside the contact plate; in the triggered position, the contact plate contacts the trigger end of the electrical switch and triggers the electrical switch; in the deactivated position, the contact plate deactivated the trigger end of the electrical switch.

[0008] Furthermore, the angular member is provided with a first bending structure; at the trigger position, the first bending structure abuts against the touch plate to restrict the touch plate from moving away from the release position.

[0009] Furthermore, the contact plate includes a planar portion and an inclined portion connected to each other; the column is inserted and fixed on the planar portion; and the inclined portion is adapted to the trigger end of the electrical switch.

[0010] Furthermore, the angular member is provided with a guide hole; the central axis of the guide hole extends along a first direction; the column moves through the guide hole along the first direction.

[0011] Furthermore, a cotter pin is inserted into the column; the cotter pin and the angled member form a limiting fit in the first direction.

[0012] Furthermore, the column is fixed to the contact plate by welding.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This invention utilizes the cooperation of a contact plate and a column, with the column and contact plate fixed together as a whole. When the inspection cover is closed, it contacts the top of the main body, causing the column and contact plate to move downwards to the release position, and compressing the spring. When the inspection cover is opened, the contact plate moves to the trigger position under the spring force, triggering the electrical switch to cut off the power supply to the escalator's safety circuit, thus stopping the escalator. The overall structure is compact and occupies little space, effectively meeting the practical application needs of escalators and demonstrating strong practicality. Attached Figure Description

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a device for monitoring and maintaining cover plates in the prior art;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the balance bar in the diagram;

[0018] Figure 3 This is a three-dimensional structural diagram of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the contact plate and column of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the angular component of this utility model;

[0021] Figure 6 This is an installation diagram of the present invention;

[0022] The components are: 1. Angle seat; 11. Balance bar; 12. Sleeve; 13. Weight; 14. Fastener; 15. Striking rod; 16. Small piece; 2. Angle part; 21. Guide hole; 22. First bending structure; 3. Contact plate; 31. Flat part; 32. Inclined part; 4. Column; 41. Cotter pin; 5. Spring; 6. Electrical switch; 61. Trigger end; 7. Inspection cover plate. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0024] like Figure 3-6 The diagram shows a device for monitoring the maintenance cover 7 of an escalator according to this embodiment. This device is installed on the escalator truss to detect the maintenance cover 7. The device includes an angled member 2, a contact plate 3, and an electrical switch 6. The angled member 2 is fixedly installed on the escalator truss. The contact plate 3 is installed on the angled member 2 and can move back and forth between a trigger position and a release position in a first direction. In this embodiment, the first direction is the vertical direction. A column 4 is fixedly installed on the contact plate 3. The column 4 is a cylindrical structure and is welded to the contact plate 3. The column 4 extends along the first direction, and its top end forms a contact end for cooperating with the maintenance cover 7. A guide hole 21 is machined on the angled member 2. The central axis of the guide hole 21 extends along the first direction. The column 4 is movably inserted into the guide hole 21. Guided by the guide hole 21, the contact plate 3 and the column 4 can move together on the angled member 2 in the vertical direction.

[0025] A spring 5 is installed between the contact plate 3 and the angled member 2. The spring 5 is sleeved on the column 4, with one end abutting against the contact plate 3 and the second end abutting against the angled member 2, giving the spring 5 an elastic force to drive the contact plate 3 to the trigger position. The aforementioned electrical switch 6 is fixed to the angled member 2 and located beside the contact plate 3. The electrical switch 6 is a prior art limit switch with a movable trigger end 61. When in the aforementioned trigger position, the contact plate 3 contacts the trigger end 61 of the electrical switch 6, pushing the trigger end 61 of the electrical switch 6 to move, thereby triggering the electrical switch 6. When the contact plate 3 is in the release position, the contact plate 3 moves away from the trigger end 61 of the electrical switch 6, thereby releasing the trigger end 61 of the electrical switch 6 and restoring the trigger end 61 of the electrical switch 6 to its initial state.

[0026] In this embodiment, a first bending structure 22 is formed on the aforementioned angular member 2. The first bending structure 22 is arranged on the upper side of the contact plate 3. When in the aforementioned trigger position, the first bending structure 22 abuts against the contact plate 3 to restrict the contact plate 3 from moving away from the release position, thereby preventing the contact plate 3 from sliding past the trigger end 61 of the electrical switch 6.

[0027] The contact plate 3 of this embodiment includes a planar portion 31 and an inclined portion 32 connected to each other. The aforementioned column 4 is inserted and fixed to the planar portion 31. The inclined surface on the inclined portion 32 is adapted to the trigger end 61 of the electrical switch 6. When the contact plate 3 moves from the release position to the trigger position, the inclined surface on the inclined portion 32 contacts the trigger end 61 of the electrical switch 6 to improve the stability of the contact process. A cotter pin 41 is inserted into the bottom of the aforementioned column 4. The cotter pin 41 forms a limiting fit with the angle member 2 in a first direction to prevent the column 4 from disengaging from the angle member 2.

[0028] In practical use, the angled component 2 is fixedly installed on the truss with screws. When the access cover 7 is closed, it touches the top of the main body and drives the column 4 and the contact plate 3 to move down to the release position, compressing the spring 5. When the access cover 7 is opened, under the elastic force of the spring 5, the contact plate 3 moves to the trigger position to trigger the electrical switch 6, thereby controlling the disconnection of the escalator's safety circuit power supply to stop the escalator from running. The overall structure is small and compact, occupying little space, effectively meeting the practical application needs of escalators, and is highly practical.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for monitoring and inspecting maintenance covers on an escalator, comprising an angled component, a contact plate, and an electrical switch; characterized in that: The contact plate is disposed on the corner piece and can move back and forth between a trigger position and a release position in the first direction; a column is fixedly provided on the contact plate; the column extends along the first direction and has a contact end for cooperating with the inspection cover plate; A spring is provided between the contact plate and the angular component; the spring has an elastic force that drives the contact plate to move toward the trigger position; The electrical switch is mounted on the corner piece and located beside the contact plate; in the triggered position, the contact plate contacts the trigger end of the electrical switch and triggers the electrical switch; in the deactivated position, the contact plate deactivated the trigger end of the electrical switch.

2. The device for monitoring and inspecting maintenance covers of an escalator according to claim 1, characterized in that: The angular component is provided with a first bending structure; at the trigger position, the first bending structure abuts against the touch plate to restrict the touch plate from moving away from the release position.

3. The device for monitoring and inspecting maintenance covers of an escalator according to claim 1, characterized in that: The contact plate includes a planar portion and an inclined portion connected to each other; the column is inserted and fixed on the planar portion; and the inclined portion is adapted to the trigger end of the electrical switch.

4. The device for monitoring and inspecting maintenance covers of an escalator according to claim 1, characterized in that: The angular component is provided with a guide hole; the central axis of the guide hole extends along a first direction; the column moves and inserts into the guide hole along the first direction.

5. The device for monitoring and inspecting maintenance covers of an escalator according to claim 1, characterized in that: A cotter pin is inserted into the column; the cotter pin and the angled member form a limiting fit in a first direction.

6. The device for monitoring and inspecting maintenance covers of an escalator according to claim 1, characterized in that: The column is fixed to the contact plate by welding.

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