CN201890701U

CN201890701U - Switch contact for lift door locks

Info

Publication number: CN201890701U
Application number: CN2010206608338U
Authority: CN
Inventors: 何镜棠
Original assignee: CHANGZHOU CITY JINHUA METAL MATERIAL Co Ltd
Current assignee: CHANGZHOU CITY JINHUA METAL MATERIAL Co Ltd
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2011-07-06
Anticipated expiration: 2020-12-15

Abstract

The utility model discloses a switch contact for lift door locks, which comprises a contact body with a conductive part, the conductive part consists of a copper layer and silver layers connected with the copper layer, the copper layer is connected with the contact body, and the silver layers are arranged on the contact planes which can be contacted with the contact of an electric switch of a door lock. One end surface of the contact body is provided with a stepped structure, the copper layer is connected with two planes of the stepped structure and a vertical plane between the two planes, and the silver layers are only connected with the two planes. Since the copper-silver composite material is used on the contact planes in the conductive part of the contact, i.e. the planes contacted with the electric switch of the door lock, and the copper is only used on the non-contact plane, the cost is remarkably reduced while the reliability of contact is not decreased, the design of the switch contact is ingenious, and the switch contact has extremely high economic and industrial values, and is suitable for industrial application and popularization.

Description

The door lock of elevator switch contact

Technical field

The utility model relates to a kind of elevator door lock assembly, relates in particular to a kind of door lock of elevator switch contact.

Background technology

Elevator must be after definite Room door and gate shut fully, and the just operation that can once go on foot is to guarantee safety, and closing the door to have duplicate protection, mechanical protection and electric protection.Electric protection be with gate signal as a contact signal, the door switch contact contacts with the door lock electric switch has just formed contact signal.When door shut, contact signal was normally closed point, and this moment, the door switch contact was pressed on the contact of door lock electric switch.Door is when opening or not shutting, and contact signal be normal the battle, and door switch contact and door lock electric switch are without any contacting the formation open contact.When normal the battle, elevator does not allow any action.

The elevator door lock assembly is four big safety components of elevator, require reliably to contact more than 1,000,000 times, present door lock of elevator is the copper silver composite material with the employing of switch contact current-carrying part, all used this material at noncontact face and contact surface, its contact surface is meant the plane that is contacted with door lock electric switch contact in the door switch contact.

Specifically as shown in Figure 1, door lock of elevator of the prior art comprises the contact body 2 with conductive part 1 with switch contact, described conductive part is by the copper material bed of material 3 that is connected on the described contact body, and the complete silver material layer 5 that is connected on the described copper material bed of material 3 constitutes, the defective of this structure is that cost is higher.

The utility model content

In view of this, technical problem to be solved in the utility model is: lower-cost door lock of elevator switch contact when providing a kind of energy to guarantee reliable the contact.

In order to achieve the above object, the utility model adopts following technical scheme to realize:

A kind of door lock of elevator switch contact, wherein, comprise the contact body with conductive part, described conductive part is by the copper material bed of material that is connected on the described contact body, and the silver material layer that is connected on the contact surface that contacts for door lock electric switch contact on the described copper material bed of material constitutes.

As preferably, an end face of described contact body has hierarchic structure, and the described copper material bed of material is connected in two planes on the described hierarchic structure and is connected on the vertical face between described two planes, and described silver material layer only is connected on described two planes.

As shown from the above technical solution, the beneficial effects of the utility model are:

Compared to existing technology, the utility model is by using the copper silver composite material with the contact surface in the contact conductive part (plane that is contacted with the door lock electric switch), noncontact face only uses copper product, make the reliability of contact not reduce, but cost has significant reduction, its design is ingenious, has very high economic value and industrial value, is suitable for technical application and promotes.

Description of drawings

Fig. 1 is the perspective view of door lock of elevator of the prior art with switch contact.

Fig. 2 is the perspective view of door lock of elevator of the present utility model with switch contact.

Fig. 3 is the construction profile scheme drawing of door lock of elevator of the present utility model with switch contact.

Fig. 4 is the structural representation of door lock electric switch, has wherein illustrated the structure of door lock electric switch contact.

The specific embodiment

In order to make those skilled in the art can further understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing.

See also Fig. 2 to shown in Figure 4, the utility model provides a kind of door lock of elevator switch contact, wherein, comprise contact body 2 with conductive part 1, described conductive part is by the copper material bed of material 3 that is connected on the described contact body, and the silver material layer 5 that is connected on the contact surface that contacts for door lock electric switch contact 4 on the described copper material bed of material 3 constitutes.An end face of described contact body has hierarchic structure, the described copper material bed of material 3 is connected in two planes (contact surface) on the described hierarchic structure and is connected on the vertical face between described two planes, and described silver material layer only is connected on described two planes (contact surface).

But the above only is a preferable possible embodiments of the present utility model, is not in order to limit to claim of the present utility model, so the equivalent structure that all utilization the utility model specification sheetss and accompanying drawing content are done changes, all in like manner to be included in the scope of the present utility model.

Claims

1. door lock of elevator switch contact, it is characterized in that, comprise the contact body with conductive part, described conductive part is by the copper material bed of material that is connected on the described contact body, and the silver material layer that is connected on the contact surface that contacts for door lock electric switch contact on the described copper material bed of material constitutes.

2. door lock of elevator switch contact as claimed in claim 1, it is characterized in that, an end face of described contact body has hierarchic structure, the described copper material bed of material is connected in two planes on the described hierarchic structure and is connected on the vertical face between described two planes, and described silver material layer only is connected on described two planes.