Elevator door lock with reliable switch contact joint structure

Abstract

The utility model relates to an elevator door lock with a reliable switch contact joint structure, which comprises a door lock switch seat and a door hook seat, a rotating hook is rotatably arranged on the door hook seat, a door lock switch with a spring conducting strip and a fixed lock hook are arranged on the door lock switch seat, an extending plate is further arranged on a transverse plate, and the extending plate is fixedly connected with the rotating hook. The extension plate is fixed on the extension plate adjusting fixing hole through a screw, the contact is located on the extension plate and matched with the spring conducting strip, the extension plate is provided with a contact piece made of red copper, and the contact piece can rotate and can be fixed on the extension plate at a selected angle; and the contact is positioned on the contact piece. The elevator door lock has the advantages that during maintenance, the position of the contact can be changed by rotating the contact piece to adjust the position, the whole assembly does not need to be replaced, the maintenance work can be greatly simplified through the design, and the reliability and durability of the elevator door lock are improved.

Description

Technical Field

[0001] The utility model relates to an elevator door lock with a reliable switch contact engagement structure. Background Art

[0002] Existing elevator door locks are frequently switched on and off during use. When the spring sheet of the door lock switch and the contact sheet assembly of the door lock rotating hook are under the operating voltage of 110V, an arc is generated at the contact point. Long-term use will cause poor contact due to oxidation or dirt on the metal contact surface.

[0003] When we perform maintenance, the general corresponding situation is to replace the contact piece assembly regularly.

[0004] However, the disassembly and assembly of the contact piece assembly is inconvenient, and the position needs to be debugged after disassembly and assembly, which increases the cost of elevator maintenance. Utility Model Content

[0005] In order to overcome the disadvantage that the switch contact engagement structure of the current elevator door lock requires high maintenance manpower, the utility model provides an elevator door lock with a reliable switch contact engagement structure.

[0006] The technical solution of the utility model to solve the technical problem is: an elevator door lock with a reliable switch contact engagement structure, comprising a door lock switch seat and a door hook seat, a rotating hook rotatably provided on the door hook seat, a door lock switch with a spring conductive sheet and a fixed lock hook provided on the door lock switch seat, the rotating hook comprising a horizontal plate, a rotating hook reset assembly provided on the horizontal plate, an extension plate adjustment fixing hole provided on the horizontal plate, an extension plate provided on the horizontal plate, the extension plate fixed on the extension plate adjustment fixing hole by screws, the contact point is located on the extension plate and matches the spring conductive sheet, a red copper contact sheet is provided on the extension plate, the contact sheet is rotatable and can be fixed on the extension plate at a selected angle; the contact point is located on the contact sheet.

[0007] A contact piece is provided, the contact piece comprises a contact portion and a connecting portion, the connecting portion is provided with a fixing hole, and the contact piece is fixed on a protruding plate by a fixing screw.

[0008] Further preferably, the contact portion is square, the connecting portion is semicircular, and the fixing hole is located at the center of the connecting portion.

[0009] In order to facilitate the installation of the contact piece, a mounting groove is provided on the extending plate, the shape of which matches the contact piece and can accommodate the rotation of the contact piece.

[0010] Further preferably, the mounting groove includes a square groove for accommodating the contact part and an ear groove, the connecting part is rotatably fixed in the ear groove, and when the contact piece is installed in the mounting groove, a rotation space is left between the contact piece and the mounting groove.

[0011] The position of the mounting groove is further defined, and the mounting groove is located at the head of the extended plate.

[0012] The rotation space is limited, and the rotation space is between 0.5 mm and 4 mm.

[0013] In order to show the contact sheet, the thickness of the mounting groove is less than or equal to the thickness of the contact sheet.

[0014] The thickness of the contact sheet is limited to be between 1 and 5 mm.

[0015] It is further defined that the thickness of the contact sheet is 2 mm.

[0016] When the utility model is used, the rotating hook is hooked on the fixed lock hook of the door hook seat, and then the contact piece above the rotating hook will connect the spring conductive piece of the door lock switch, so that the door lock switch is powered. When unhooked, the contact piece does not release the spring conductive piece, so that the door lock switch loses power.

[0017] During maintenance, when we find that there is conductive dirt on the contact piece that cannot be removed, there is no need to replace the entire extension plate. We only need to rotate the contact piece and change the contact position between the contact piece and the spring conductive piece.

[0018] The beneficial effect of the utility model is that during maintenance, the position of the contact can be changed by rotating the contact piece to adjust the position without replacing the entire assembly, which not only saves the cost of replacing parts, but also reduces the time required for maintenance and repair, and improves maintenance efficiency. Therefore, this design can greatly simplify maintenance work and improve the reliability and durability of elevator door locks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of an embodiment.

[0020] Figure 2 is a front view of an embodiment.

[0021] Figure 3 The figure is an exploded schematic diagram of a contact sheet assembly according to an embodiment.

[0022] Figure 4 is a schematic diagram of a contact blade assembly according to an embodiment.

[0023] Figure 5 The diagram is a schematic diagram of the rotation of a contact piece of a contact piece assembly according to an embodiment. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] Combined with Figures 1 to 5 , an elevator door lock with a reliable switch contact engagement structure, comprising a door lock switch seat 1 and a door hook seat 2, a rotating hook 3 rotatably provided on the door hook seat 2, a door lock switch 5 with a spring conductive sheet 4 and a fixed lock hook 6 provided on the door lock switch seat 1, the rotating hook 3 comprising a horizontal plate 7, a rotating hook reset assembly 8 provided on the horizontal plate 7, an extension plate adjustment fixing hole 9 provided on the horizontal plate 7, an extension plate 10 provided on the horizontal plate 7, the extension plate 10 is fixed on the extension plate adjustment fixing hole 9 by screws, the contact is located on the extension plate 10 and matches the spring conductive sheet 4, a red copper contact sheet 11 is provided on the extension plate 10, the contact sheet 11 is rotatable and can be fixed on the extension plate 10 at a selected angle; the contact is located on the contact sheet 11.

[0026] A contact piece 11 is provided. The contact piece 11 includes a contact portion 12 and a connecting portion 13. The connecting portion 13 is provided with a fixing hole 14. The contact piece 11 is fixed to the extension plate 10 by fixing screws 15.

[0027] Further preferably, the contact portion 12 is square, the connecting portion 13 is semicircular, and the fixing hole 14 is located at the center of the connecting portion 13 .

[0028] In order to facilitate the installation of the contact piece 11 , a mounting groove 16 is provided on the extension plate 10 . The shape of the mounting groove 16 matches that of the contact piece 11 and can accommodate the rotation of the contact piece 11 .

[0029] Further preferably, the mounting groove 16 includes a square groove 17 for accommodating the contact portion 12 and an ear groove 18, the connecting portion 13 is rotatably fixed in the ear groove 18, and when the contact piece 11 is installed in the mounting groove 16, a rotation space 19 is left between the contact piece 11 and the mounting groove 16.

[0030] The position of the mounting groove 16 is further defined, and the mounting groove 16 is located at the head of the extended plate 10 .

[0031] The rotation space is limited, and the rotation space is between 0.5 mm and 4 mm.

[0032] In order to show the contact piece 11 , the thickness of the mounting groove 16 is less than or equal to the thickness of the contact piece 11 .

[0033] The thickness of the contact sheet 11 is limited to be between 1 and 5 mm.

[0034] It is further defined that the thickness of the contact sheet 11 is 2 mm.

[0035] When the utility model is in use, the rotating hook 3 rotates on the fixed lock hook 6 of the door hook seat 2, and then the contact piece 11 above the rotating hook 3 connects the spring conductive piece 4 of the door lock switch 5, so that the door lock switch 5 is powered. When unhooking, the contact piece 11 does not release the spring conductive piece 4, so that the door lock switch 5 loses power.

[0036] During maintenance, when we find that there is conductive dirt on the contact piece 11 that cannot be removed, there is no need to replace the entire extension piece. We only need to rotate the contact piece 11 to change the contact position between the contact piece 11 and the spring conductive piece 4.

[0037] The beneficial effect of the utility model is that during maintenance, the position of the contact can be changed by rotating the contact piece to adjust the position without replacing the entire assembly, which not only saves the cost of replacing parts, but also reduces the time required for maintenance and repair, and improves maintenance efficiency. Therefore, this design can greatly simplify maintenance work and improve the reliability and durability of elevator door locks.

Claims

1. An elevator door lock with a reliable switch contact engagement structure, comprising a door lock switch seat and a door hook seat, wherein a rotating hook is rotatably provided on the door hook seat, a door lock switch with a spring conductive sheet and a fixed lock hook are provided on the door lock switch seat, the rotating hook comprises a horizontal plate, a rotating hook reset assembly is provided on the horizontal plate, an extension plate adjustment fixing hole is provided on the horizontal plate, an extension plate is also provided on the horizontal plate, the extension plate is fixed to the extension plate adjustment fixing hole by screws, the contact is located on the extension plate and matches the spring conductive sheet, and is characterized in that: A red copper contact piece is provided on the extending plate, and the contact piece is rotatable and can be fixed on the extending plate at a selected angle; the contact point is located on the contact piece.

2. The elevator door lock with a reliable switch contact engagement structure according to claim 1, characterized in that: The contact piece includes a contact portion and a connecting portion, the connecting portion is provided with a fixing hole, and the contact piece is fixed on the extending plate by a fixing screw.

3. The elevator door lock with a reliable switch contact engagement structure according to claim 2, characterized in that: The contact portion is square, the connecting portion is semicircular, and the fixing hole is located at the center of the connecting portion.

4. The elevator door lock with a reliable switch contact engagement structure according to claim 3, characterized in that: The extending plate is provided with a mounting groove, the shape of which matches the contact piece and can accommodate the rotation of the contact piece.

5. The elevator door lock with a reliable switch contact engagement structure according to claim 4, characterized in that: The mounting groove comprises a square groove for accommodating the contact part and an ear groove, the connecting part is rotatably fixed in the ear groove, and when the contact piece is installed in the mounting groove, a rotation space is left between the contact piece and the mounting groove.

6. The elevator door lock with a reliable switch contact engagement structure according to claim 4, characterized in that: The mounting groove is located at the head of the extending plate.

7. The elevator door lock with a reliable switch contact engagement structure according to claim 5, characterized in that: The rotation space is between 0.5 mm and 4 mm.

8. The elevator door lock with a reliable switch contact engagement structure according to claim 4, characterized in that: The thickness of the mounting groove is less than or equal to the thickness of the contact sheet.

9. The elevator door lock with a reliable switch contact engagement structure according to claim 7, characterized in that: The thickness of the contact sheet is between 1 and 5 mm.

10. The elevator door lock with a reliable switch contact engagement structure according to claim 8, characterized in that: The thickness of the contact sheet is 2 mm.

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