CN107887188B - Elevator door contact switch - Google Patents
Elevator door contact switch Download PDFInfo
- Publication number
- CN107887188B CN107887188B CN201711374354.2A CN201711374354A CN107887188B CN 107887188 B CN107887188 B CN 107887188B CN 201711374354 A CN201711374354 A CN 201711374354A CN 107887188 B CN107887188 B CN 107887188B
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- China
- Prior art keywords
- metal sheet
- upper shell
- elevator door
- push rod
- spring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/16—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
- H01H3/161—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid
- H01H3/163—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover or lid associated with locking or manipulating means of the closing member
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Push-Button Switches (AREA)
Abstract
The invention relates to a contact switch of an elevator door, which comprises an upper shell and a lower shell, wherein a spring is arranged in the upper shell, one end of the spring is connected to a fixed terminal, the other end of the spring is connected to a first-stage push rod device, a movable contact component is arranged in the upper shell, the movable contact component is connected with an elastic metal sheet, the elastic metal sheet is fixed on the upper shell, and the elastic metal sheet is abutted against the first-stage push rod device; the upper shell is internally provided with a static contact component matched with the movable contact component, the static contact component is connected with a metal sheet and is arranged on the upper shell, and the static contact and the movable contact can be contacted by pushing the first-stage push rod device, so that the opening or closing of the elevator door contact switch is realized.
Description
Technical Field
The invention relates to a contact switch, in particular to an elevator door lock contact switch for an elevator door device.
Background
Most accidents occur on elevators, namely landing door devices and door machines, and most of the accidents occur on electrical switches. For the landing door device, the door lock switch usually fails, and the reason for causing the door lock failure is that the switch structure is complicated, the switch volume is too large, dust and water are easy to enter, and the contact between a moving contact and a static contact is poor.
In addition, 2 movable contacts or 2 static contacts in some elevator door contact switches can interfere with each other, so that the service life of the elevator door contact switch is short, and the stability of the elevator door contact switch is damaged.
Disclosure of Invention
In view of the current situation of the prior art, the invention aims to provide a contact switch for an elevator door, which has the advantages of small volume, long service life and compact structure.
The technical scheme adopted by the invention for solving the technical problems is as follows: a kind of lift-cabin door contact switch, including upper casing and lower casing, install the spring in the upper casing, one end of the spring is connected to fixed terminal, another end of the spring is connected to one-level pusher gear, include the movable contact assembly in the upper casing, the movable contact assembly connects with the elastic metal sheet, the elastic metal sheet is fixed on upper casing, the elastic metal sheet is supported with one-level pusher gear; the upper shell is internally provided with a static contact component matched with the movable contact component, the static contact component is connected with a metal sheet and is arranged on the upper shell, and the static contact and the movable contact can be contacted by pushing the first-stage push rod device, so that the opening or closing of the elevator door contact switch is realized.
Preferably, the primary push rod device comprises a support arm, the support arm is integrally arc-shaped, an iron rod penetrates through the bottom of the support arm and abuts against an elastic metal sheet, the middle part of the support arm is connected with a spring, the elastic support arm can vertically move through the spring, when the support arm is pressed downwards, the iron rod also moves downwards along with the support arm, and the elastic metal sheet is elastically reset so as to drive the movable contact to touch the stationary contact; when the supporting arm returns due to the elasticity of the spring, the iron rod at the bottom of the supporting arm can prop against the metal sheet, so that the movable contact and the static contact are separated.
Preferably, the lower housing is provided with a screw hole matched with the fixed terminal, and the upper housing and the lower housing are mounted together through screws.
Preferably, the upper shell is provided with a mounting hole for mounting the primary push rod device, and the primary push rod device is rotatably connected to the upper shell through a screw rod.
Preferably, a threaded hole is formed in one side, connected with the primary push rod device, of the upper shell, a fixing screw is mounted in the threaded hole, and the fixing screw is rotated to adjust the height of the fixing screw on the plane, so that the sinking height of the primary push rod device is controlled.
Preferably, the movable contact assembly comprises 2 groups of movable contacts, and the fixed terminal is arranged between the 2 groups of movable contacts to separate the 2 groups of movable contacts, so that the 2 movable contacts cannot be interfered with each other.
Preferably, the stationary contact assembly also includes 2 sets of stationary contacts, and glass is arranged between the 2 sets of stationary contacts to separate the 2 sets of stationary contacts, thereby ensuring that the 2 stationary contacts do not interfere with each other.
Preferably, the metal sheet on the stationary contact is arranged on one side of the upper shell, the metal sheet is provided with a wiring terminal, and the wiring terminal can be directly connected to an electric wire and cannot be surrounded in the electric wire due to the fact that the metal sheet is arranged on one side of the upper shell, so that the situation of short circuit of the electric wire cannot occur.
Compared with the prior art, the invention has the advantages that: the dustproof waterproof device is simple in structure, and the upper shell and the lower shell are connected together through the screws to play a dustproof and waterproof role; secondly, the movable contact and the static contact are separated by glass or a fixed terminal, so that the stability of the contact switch of the elevator door is ensured; moreover, because the static contact is arranged on one side of the shell, the electric wire can be directly connected to the wiring terminal and cannot be encircled inside, so that the condition of short circuit of the circuit cannot occur, and the safety performance is ensured; the invention has the advantages of long service life, stable performance, compact structure, small volume and suitability for large-scale popularization.
Drawings
FIG. 1 is an overall schematic view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
Detailed Description
An elevator door contact switch comprises an upper shell 1 and a lower shell 2, wherein a spring 11 is installed in the upper shell 1, one end of the spring 11 is connected to a fixed terminal 12, the other end of the spring 11 is connected to a first-stage push rod device 13, a movable contact component 14 is included in the upper shell 1, the movable contact component 14 is connected with an elastic metal sheet 15, the elastic metal sheet 15 is fixed on the upper shell 1, and the elastic metal sheet 15 is abutted to the first-stage push rod device 13; the upper shell 1 is also internally provided with a static contact assembly 16 matched with the movable contact assembly 14, the static contact assembly 16 is connected with a metal sheet and is arranged on the upper shell 1, the first-stage push rod device 13 comprises a supporting arm 131, the supporting arm is integrally arc-shaped 131, the bottom of the supporting arm transversely penetrates through an iron rod 132, the iron rod 132 props against an elastic metal sheet 15, the middle part of the supporting arm 131 is connected with an elastic 11, the elastic supporting arm 131 of the spring 11 can vertically move, the lower shell 2 is provided with a screw hole matched with the fixed terminal 12, the upper shell and the lower shell are arranged together through a screw 21, the upper shell 1 is provided with a mounting hole for mounting the first-stage push rod device 13, the first-stage push rod device 13 is rotatably connected on the upper shell 1 through a screw 17, one side of the upper shell 1 connected with the first-stage push rod device 13 is provided with a threaded hole, the threaded hole is provided with a fixed screw 18, the, thereby control the sunken height of one-level pusher gear 13, the movable contact subassembly includes 2 groups of movable contacts, fixed terminal sets up between 2 groups of movable contacts, separates 2 groups of movable contacts, and the stationary contact subassembly is provided with glass also including 2 groups of stationary contacts between this 2 groups of stationary contacts, separates 2 groups of stationary contacts, and the sheetmetal on the stationary contact sets up the one side at last casing, and this sheetmetal is opened there is the terminal.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. An elevator door contact switch comprises an upper shell (1) and a lower shell (2), and is characterized in that a spring (11) is installed in the upper shell (1), one end of the spring (11) is connected to a fixed terminal (12), the other end of the spring (11) is connected to a first-level push rod device (13), a movable contact component (14) is arranged in the upper shell (1), the movable contact component (14) is connected with an elastic metal sheet (15), the elastic metal sheet (15) is fixed on the upper shell (1), and the elastic metal sheet (15) abuts against the first-level push rod device (13); a fixed contact assembly (16) matched with the movable contact assembly (14) is also arranged in the upper shell (1), and the fixed contact assembly (16) is connected with a metal sheet and is arranged on the upper shell (1); the primary push rod device (13) comprises a support arm (131), the support arm (131) is arc-shaped, an iron rod (132) penetrates through the bottom of the support arm, the iron rod (132) props against the elastic metal sheet (15), the middle of the support arm (131) is connected with a spring (11), and the support arm (131) can vertically move through the spring (11);
when the supporting arm is pressed downwards, the iron rod (132) is also pressed downwards along with the pressing of the supporting arm, and the elastic metal sheet (15) is elastically reset, so that the movable contact assembly (14) on the elastic metal sheet (15) is driven to touch the fixed contact assembly (16);
when the supporting arm returns along with the elasticity of the spring (11), the iron rod (132) props against the elastic metal sheet (15) and enables the movable contact (14) to be separated from the static contact (16).
2. The elevator door contact switch of claim 1, wherein the lower case (2) is formed with screw holes to be engaged with the fixing terminals (12), and the upper and lower cases are mounted together by screws (21).
3. The elevator door contact switch according to claim 2, wherein the upper housing (1) is provided with a mounting hole for mounting the primary push rod device (13), and the primary push rod device (13) is rotatably connected to the upper housing (1) through a screw (17).
4. The elevator door contact switch according to claim 3, wherein a screw hole is formed at a side of the upper casing (1) connected to the primary push rod device (13), the screw hole is provided with a fixing screw (18), and the fixing screw (18) is rotated to adjust the height of the fixing screw (18) on the plane, thereby controlling the sinking height of the primary push rod device (13).
5. The elevator door contact switch of claim 4, wherein the movable contact assembly includes 2 sets of movable contacts, and the fixed terminal is disposed between the 2 sets of movable contacts to separate the 2 sets of movable contacts.
6. The elevator door contact switch of claim 5, wherein the stationary contact assembly also includes 2 sets of stationary contacts, and a glass is disposed between the 2 sets of stationary contacts to separate the 2 sets of stationary contacts.
7. The elevator door contact switch of claim 6, wherein the metal plate of the stationary contact is provided on one side of the upper case, and the metal plate is provided with a terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374354.2A CN107887188B (en) | 2017-12-19 | 2017-12-19 | Elevator door contact switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374354.2A CN107887188B (en) | 2017-12-19 | 2017-12-19 | Elevator door contact switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107887188A CN107887188A (en) | 2018-04-06 |
| CN107887188B true CN107887188B (en) | 2020-10-16 |
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ID=61771012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711374354.2A Active CN107887188B (en) | 2017-12-19 | 2017-12-19 | Elevator door contact switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107887188B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2139305Y (en) * | 1992-06-15 | 1993-07-28 | 罗强 | Pressure switch |
| CN201122541Y (en) * | 2007-10-06 | 2008-09-24 | 朱建新 | Auxiliary switch |
| CN101786569A (en) * | 2010-02-24 | 2010-07-28 | 宁波市北仑欣凌电梯配件厂 | Contact switch of elevator door lock |
| CN202150385U (en) * | 2011-08-08 | 2012-02-22 | 陈红迪 | Electric tool switch |
| CN102426946A (en) * | 2011-11-15 | 2012-04-25 | 安徽鑫龙电器股份有限公司 | Auxiliary contact structure for low-voltage electrical appliance |
| CN104658788A (en) * | 2015-02-13 | 2015-05-27 | 惠州市弘宝电器有限公司 | Microswitch |
| CN207909724U (en) * | 2017-12-19 | 2018-09-25 | 宁波市北仑恒业电梯配件厂（普通合伙） | A kind of elevator door contact switch |
-
2017
- 2017-12-19 CN CN201711374354.2A patent/CN107887188B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2139305Y (en) * | 1992-06-15 | 1993-07-28 | 罗强 | Pressure switch |
| CN201122541Y (en) * | 2007-10-06 | 2008-09-24 | 朱建新 | Auxiliary switch |
| CN101786569A (en) * | 2010-02-24 | 2010-07-28 | 宁波市北仑欣凌电梯配件厂 | Contact switch of elevator door lock |
| CN202150385U (en) * | 2011-08-08 | 2012-02-22 | 陈红迪 | Electric tool switch |
| CN102426946A (en) * | 2011-11-15 | 2012-04-25 | 安徽鑫龙电器股份有限公司 | Auxiliary contact structure for low-voltage electrical appliance |
| CN104658788A (en) * | 2015-02-13 | 2015-05-27 | 惠州市弘宝电器有限公司 | Microswitch |
| CN207909724U (en) * | 2017-12-19 | 2018-09-25 | 宁波市北仑恒业电梯配件厂（普通合伙） | A kind of elevator door contact switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107887188A (en) | 2018-04-06 |
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