CN-224212235-U - Triangular lock mechanism for elevator landing door

Abstract

The utility model discloses a triangular lock mechanism for an elevator landing door, which comprises a triangular lock, an in-place switch, a trigger component and a bracket, wherein the bracket is used for connecting the triangular lock and the in-place switch, one end of the trigger component is fixedly connected with the top of the triangular lock, the other end of the trigger component is rotationally connected with the top of the bracket, one end of the in-place switch is provided with a contact part, the contact part faces the triangular lock, the trigger component can rotate along with the rotation of the triangular lock, the trigger component comprises a first connecting rod, the first connecting rod is used for triggering the contact part when the triangular lock is unlocked, and an extension line of the axis of the contact part penetrates through the side wall of the first connecting rod. According to the triangular lock mechanism, in the unlocking process, the contact point between the contact part and the side wall of the first connecting rod is almost unchanged, so that the loss of the contact part can be effectively reduced, the trigger assembly can effectively trigger the contact part to trigger the in-place switch to act, and the monitoring effect of the in-place switch is effectively ensured.

Inventors

• LI BOHUI
• FENG HAOCONG

Assignees

• 威特电梯部件(苏州)有限公司

Dates

Publication Date

20260508

Application Date

20250623

Claims (10)

1. 1. A triangle lock mechanism for elevator layer door, its characterized in that includes triangle lock, in-place switch, trigger subassembly and support, the support is used for connecting triangle lock and in-place switch, trigger subassembly's one end and the top fixed connection of triangle lock, trigger subassembly's the other end and the top rotation of support are connected, in-place switch's one end has contact, contact sets up towards the triangle lock, trigger subassembly can rotate along with the rotation of triangle lock, trigger subassembly includes first connecting rod, first connecting rod is used for triggering contact when the triangle lock unblock, the extension line of the axial lead of contact runs through the lateral wall of first connecting rod.
2. 2. The delta lock mechanism of claim 1 wherein the bracket comprises a first bottom plate, a first side plate, a second side plate, and a top plate, the first side plate and the second side plate being positioned on either side of the first bottom plate and each being perpendicular to the first bottom plate, the top plate being parallel to the first bottom plate.
3. 3. The delta lock mechanism of claim 2, wherein the bottom edges of the first side plate and the second side plate are each fixedly connected to the first bottom plate, one side of the top plate is fixedly connected to the top edge of the second side plate, and the top plate extends inwardly from the side of the second side plate adjacent to the first bottom plate.
4. 4. The delta lock mechanism of claim 3, wherein a distance between the first side plate and the delta lock is greater than a distance between the second side plate and the delta lock, the first side plate being fixedly connected to one side of the in-place switch.
5. 5. The delta lock mechanism of claim 2, wherein the delta lock comprises a delta lock body and a second bottom plate, wherein the bottom surface of the delta lock body is fixedly connected with the top surface of the second bottom plate, and the end of the second bottom plate, which is close to the in-place switch, is fixedly connected with the end of the first bottom plate, which is far away from the in-place switch.
6. 6. The delta lock mechanism of claim 5, wherein the first link comprises a first portion and a second portion that are perpendicular to each other, wherein a side of the first portion proximate the contact portion is fixedly coupled to a side of the second portion.
7. 7. The cam lock mechanism according to claim 6, wherein the second portion is configured to trigger the contact portion when the cam lock is unlocked, and an extension line of an axis line of the contact portion penetrates a thickness direction of the second portion.
8. 8. The delta lock mechanism of claim 7, wherein the height of the second portion is greater than or equal to the vertical distance from the bottom surface of the first portion to the center of the contact portion, wherein one end of the second portion is flush with one end of the first portion, and wherein the length of the second portion is less than the length of the first portion.
9. 9. The delta lock mechanism of claim 6, wherein the trigger assembly further comprises a drive pendulum and a second link, the first portion is parallel to the second link and the top surface of the first portion is partially attached to the bottom surface of the second link, one end of the drive pendulum is fixedly connected to the top of the delta lock body, one end of the second link is rotatably connected to the other end of the drive pendulum, the other end of the second link is rotatably connected to one end of the first portion, and the other end of the first portion is rotatably connected to the top plate.
10. 10. The delta lock mechanism as set forth in claim 7, wherein the delta lock body has a locked state and an unlocked state, wherein the outside of the second portion has a spacing from the contact portion when the delta lock body is in the locked state, and wherein the outside of the second portion contacts the contact portion when the delta lock body is in the unlocked state, and wherein the angle between the second link and the first portion when the delta lock body is in the locked state is greater than the angle between the second link and the first portion when the delta lock body is in the unlocked state.

Description

Triangular lock mechanism for elevator landing door Technical Field The utility model relates to the technical field of elevators, in particular to a triangular lock mechanism for an elevator landing door. Background The elevator landing door cam lock is used as a key part of an elevator, and is also important for monitoring the action of the elevator landing door cam lock. The existing monitoring device is realized by installing a in-place switch, the cam lock is rotated to open the elevator landing door lock, and the coaxial cam mechanism triggers the in-place switch to act, so that the on-off of the monitoring circuit is realized, and the action of the cam lock is identified. In the prior art, when a cam mechanism on a cam lock triggers a in-place switch, a contact part of the in-place switch slides on the surface of the cam for a certain distance along with the rotation of the cam. Because the contact part of the in-place switch is nonmetallic, and the cam mechanism is metallic, friction generated by sliding can lead to the loss of the nonmetallic contact part of the in-place switch, the loss can be gradually serious along with the extension of the service time until the contact part of the in-place switch is lost, and the cam mechanism of the cam lock can not touch the contact part of the in-place switch, so that the in-place switch can not be triggered to act, and the monitoring effect is disabled. Disclosure of utility model In view of the above, the present utility model provides an improved cam lock mechanism for elevator landing doors, which overcomes the shortcomings of the prior art. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a triangle lock mechanism for elevator layer door, includes the triangle lock, targets in place the switch, triggers subassembly and support, the support is used for connecting the triangle lock and targets in place the switch, trigger the top fixed connection of subassembly's one end and triangle lock, trigger the other end and the top rotation of support of subassembly and be connected, the one end of target in place the switch has contact portion, contact portion sets up towards the triangle lock, trigger the subassembly and can rotate along with the rotation of triangle lock, trigger the subassembly and include first connecting rod, first connecting rod is used for triggering contact portion when the triangle lock unblock, the extension line of the axial lead of contact portion runs through the lateral wall of first connecting rod. Through setting up trigger assembly and being connected with triangle lock and support respectively with trigger assembly's both ends, ensure simultaneously that the extension line of the axial lead of the contact portion of switch in place runs through the lateral wall of trigger assembly's first connecting rod all the time for at the in-process of unblock triangle lock, can drive the holistic rotation of trigger assembly through the rotation of triangle lock, and then make first connecting rod trigger switch in place. When the first connecting rod triggers the contact part, the sliding distance between the contact part and the side wall of the first connecting rod is obviously reduced compared with that of a cam mechanism in the prior art due to the structural design of the trigger assembly, and the first connecting rod continuously rotates along with the rotation of the triangular lock due to the integral structural design of the trigger assembly, so that the contact point between the contact part and the side wall of the first connecting rod is hardly changed in the unlocking process, the loss of the contact part can be effectively slowed down, the trigger assembly is ensured to effectively trigger the contact part, the trigger in-place switch acts, and the monitoring effect of the in-place switch is ensured to be effective. According to a preferred embodiment of the present utility model, the bracket includes a first bottom plate, a first side plate, a second side plate, and a top plate, the first side plate and the second side plate are respectively located at two sides of the first bottom plate and are perpendicular to the first bottom plate, and the top plate is parallel to the first bottom plate. According to a preferred embodiment of the present utility model, the bottom edges of the first side plate and the second side plate are fixedly connected to the first bottom plate, one side of the top plate is fixedly connected to the top edge of the second side plate, and the top plate extends inwards from one side of the second side plate, which is close to the first bottom plate. According to a preferred implementation aspect of the present utility model, the distance between the first side plate and the cam lock is greater than the distance between the second side plate and the cam lock, and the first side plate is fixedly connected with one side of