CN210682912U - Elevator door lock switch - Google Patents
Elevator door lock switch Download PDFInfo
- Publication number
- CN210682912U CN210682912U CN201920991283.9U CN201920991283U CN210682912U CN 210682912 U CN210682912 U CN 210682912U CN 201920991283 U CN201920991283 U CN 201920991283U CN 210682912 U CN210682912 U CN 210682912U
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- elevator door
- elastic sheet
- lock switch
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- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 239000012634 fragment Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model provides an elevator lock switch, include: the first contact part and the second contact part are in clutch correspondence with the opening and closing of an elevator door lock switch, the driving mechanism is arranged beside the first contact part and the second contact part and used for acting on the first contact part and/or the second contact part, when the elevator door lock switch is closed, the driving mechanism drives the first contact part and the second contact part to be in clutch, and the driving mechanism does not influence the normal opening and closing of the first contact part and the second contact part. The problem that the spring shaft is required to be manually bounced to bounce impurities on the spring shaft and the rotating shaft away in the prior art is solved by the elevator door lock switch.
Description
Technical Field
The utility model relates to an elevator field, concretely relates to elevator lock switch.
Background
Chinese patent discloses an elevator lock switch that application number is CN201110335568.5, box, main contact device, vice contact device and circuit system at the bottom of including the switch, vice contact device is connected with circuit system, and box one side is equipped with the mounting hole at the bottom of the switch, and box surface is covered by the apron at the bottom of the switch, be equipped with dwang coupling assembling at the bottom of the switch, dwang coupling assembling includes mutual swivelling joint's tongue round pin and axis of rotation, the tongue round pin passes the mounting hole, the axis of rotation is installed by the rotation at the bottom of the switch on the box, and the axis of rotation connection enables the telescoping device of axis of rotation resume position, be equipped with the metal contact piece that is used for putting through main contact device on the tongue round pin and be used for playing the safety device of insurance effect, the axis of rotation passes. Although the switch is implemented to be opened when the elevator door is opened and closed when the elevator door is closed for detecting the opening and closing of the elevator door, the switch has disadvantages in that:
because the switch is in long-term use, the axis of rotation and the easy impurity that has of spring axle contact department lead to axis of rotation and spring axle contact failure, and maintenance person need stir the spring axle for the spring axle bullet moves, and with spring axle and the epaxial impurity of axis of rotation bullet leave, need stop whole elevator, need open the elevator moreover, whole troublesome poeration.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an elevator lock switch, the problem that needs manual spring shaft and play spring shaft and the epaxial impurity of rotation to leave among the solution prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an elevator door lock switch comprising: the first contact part and the second contact part are in clutch correspondence with the opening and closing of the elevator door lock switch, the driving mechanism is arranged beside the first contact part and the second contact part and used for acting on the first contact part and/or the second contact part, when the elevator door lock switch is closed, the driving mechanism drives the first contact part and the second contact part to be in clutch, and the driving mechanism does not affect the normal opening and closing of the first contact part and the second contact part (namely, does not affect the realization of the basic opening and closing functions of the whole elevator door lock switch).
Compared with the prior art, the utility model discloses following beneficial effect has:
through the arrangement of the driving mechanism, the normal opening and closing functions of the first contact part and the second contact part are not influenced, the normal opening and closing functions are ensured, meanwhile, when the first contact part and the second contact part are in the closing function, the first contact part and the second contact part are forced to be separated from each other, the first contact part and the second contact part can be normally returned to the closing position under the self elasticity of the first contact part or the second contact part, the normal functions are ensured, the impurities such as dust and the like of the first contact part and the second contact part are ejected under the action of the driving mechanism, the first contact part and the second contact part can normally execute the closing command after the dust is ejected, the maintenance of the whole elevator door lock switch is facilitated, and the situation that passengers are trapped in the elevator for a long time due to the fact that the elevator door lock switch cannot be closed normally is avoided, the elevator door lock switch can be maintained in time, passengers trapped in the elevator can be rescued in time, and the safety is guaranteed.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a cross-sectional view of a first resilient plate and a second resilient plate when a driving mechanism pushes the first resilient plate in embodiment 1;
fig. 2 is a cross-sectional view of the first resilient plate and the second resilient plate when the driving mechanism pushes the second resilient plate in embodiment 1;
fig. 3 is a cross-sectional view of the first resilient plate and the second resilient plate when the driving mechanism pushes the first resilient plate in embodiment 2;
fig. 4 is a cross-sectional view of the first resilient plate and the second resilient plate when the driving mechanism pushes the second resilient plate in embodiment 2;
fig. 5 is a schematic structural view of an elevator door lock switch in embodiment 3;
fig. 6 is a cross-sectional view of the first resilient piece and the second resilient piece in embodiment 4;
FIG. 7 is a cross-sectional view A-A of the drive mechanism of FIG. 6;
fig. 8 is an enlarged view at B in fig. 7.
Reference numerals: the elevator door lock comprises a housing 1, an elevator door lock switch 2, a first contact part 21, a rotating hook 211, a first elastic sheet 212, a first contact point 213, a second contact part 22, a second elastic sheet 221, a second contact point 222, a driving mechanism 23, a body 231, a push rod 232, a roller 233, a rotating disc 231 ', a push block 232 ', a motor 233 ', a suspension lug 24, a connecting assembly 25, a wedge 250, a mounting block 251, a second spring 252, a sliding block 253, a mounting barrel 254, a second roller 255, a suspension rod 256, a connecting block 257, a third spring 258, a bayonet 259, a fourth spring 260, a suspension assembly 27, a central shaft 271, a coil spring 272, a rotating barrel 273 and a pull rope 274.
Detailed Description
In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:
example 1:
as shown in fig. 1 and 2, the utility model provides an elevator door lock switch, include: the elevator door opening and closing detection circuit comprises a first contact part 21, a second contact part 22 and a driving mechanism 23, wherein the first contact part 21 and the second contact part 22 are in clutch corresponding to the opening and closing of the elevator door opening and closing detection circuit, the driving mechanism 23 is arranged beside the first contact part 21 and the second contact part 22, the driving mechanism 23 is used for acting on the first contact part 21 and/or the second contact part 22, when the elevator door opening and closing detection circuit is closed, the driving mechanism 23 drives the first contact part 21 and the second contact part 22 to be in clutch, and the driving mechanism 23 does not influence the normal opening and closing of the first contact part 21 and the second contact part 22 (namely, the realization of the basic opening and closing function of the whole elevator door opening and closing detection circuit is not influenced). The load is a lamp.
In order to separate the first contact portion 21 and the second contact portion 22 under the force of the driving mechanism 23 and avoid the driving mechanism 23 from obstructing the normal close and separation of the first contact portion 21 and the second contact portion 22, the first contact portion 21 includes: the rotating hook 211, the first elastic piece 212, and the first contact 213, the second contact portion 22 includes: the elevator door opening device comprises a second elastic sheet 221 and a second contact 222, wherein the first contact part and the second contact part are arranged in a shell, one end of a rotary hook 211 can be rotatably arranged on the inner wall of the shell, the other end of the rotary hook 211 is fixed to one end of a first elastic sheet 212, the other end of the first elastic sheet 212 is fixedly provided with a first contact 213, a second contact 222 in contact with the first contact 213 is arranged beside the first contact 213, the second contact 222 is arranged at one end of the second elastic sheet 221, the other end of the second elastic sheet 221 is arranged on the inner wall of the shell through a mounting seat, when the elevator door is opened, the rotary hook 211 drives the first contact 213 to be far away from the second contact 222, and when the elevator door is closed, the first contact 213 is tightly attached to.
In order to design the driving mechanism 23 with a simple structure, the driving mechanism 23 includes: the first electromagnetic pushing assembly is used for pushing the first elastic piece 212 to rotate in a direction away from the second elastic piece 221 or pushing the second elastic piece 221 to rotate in a direction away from the first elastic piece 212. After the elevator door is closed, the first elastic sheet 212 and the second elastic sheet 221 can be pushed to force the first contact 213 and the second contact 222 which should be attached to each other to be separated from each other.
In order to design a first electromagnetic type pushing assembly with a simple structure, the first electromagnetic type pushing assembly comprises: body 231, the electro-magnet, first spring, permanent magnet and push rod 232, at the internal wall mounting of casing have body 231, be provided with the electro-magnet in the body 231, be provided with the permanent magnet relatively with the electro-magnet, the permanent magnet is fixed on push rod 232, push rod 232 is at body 231 guide downstream, push rod 232 is used for with the shell fragment, the shell fragment and the separation of rotatory hook 211 that enable mutual contact after the electro-magnet circular telegram, first spring one end is fixed with push rod 232, the first spring other end is fixed to body 231, keep push rod 232 to keep away from first shell fragment 212 or second shell fragment 221 under first spring force when the electro-magnet does not circular telegram. When the first electromagnetic pushing assembly pushes the first elastic piece 212, the first electromagnetic pushing assembly is located on one side of the first elastic piece 212 close to the second elastic piece 221; when the first electromagnetic pushing assembly pushes the second elastic piece 221, the first electromagnetic pushing assembly is located on a side of the second elastic piece 221 close to the first elastic piece 212.
In order to avoid damage to the push rod 232 and the elastic sheet after friction due to deflection of the elastic sheet relative to the push rod 232, the push rod 232 is provided with a first roller 233 capable of rotating automatically, and the first roller 233 is used for contacting with the elastic sheet.
When the elevator door is closed, the first contact part 21 and the second contact part 22 are driven to be close to each other, impurities such as dust cannot be avoided in the contact position of the first contact part 21 and the second contact part 22 after long-term use, the first contact part 21 and the second contact part 22 cannot be normally connected after being influenced to be close to each other, at the moment, the second elastic sheet 221 can be forced to be far away from the rotating hook 211 by the second elastic sheet 221 under the trend of being close to the rotating hook 211 through controlling the operation of the driving mechanism 23, the bouncing of the second elastic sheet 221 is realized, and the whole driving mechanism 23 is positioned on one side of the second elastic sheet 221, which is far away from the free end of the rotating hook 211. The first roller 233 does not obstruct the movement of the first and second contact portions 21 and 22 under the first spring force when the first and second contact portions 21 and 22 normally travel the opening and closing function. When the closing function cannot be realized due to poor contact between the first contact part 21 and the second contact part 22, the electromagnet is powered on, the electromagnet enables the permanent magnet to be far away from the electromagnet through magnetic force, and then the permanent magnet drives the push rod 232 to move towards the second elastic sheet 221, the thrust of the first roller 233 forces the second elastic sheet 221 to rotate, the second elastic sheet 221 is far away from the rotating hook 211, then the electromagnet is powered off, the first roller 233 is far away from the second elastic sheet 221 under the elastic force of the first spring, meanwhile, the second elastic sheet 221 rotates towards the rotating hook 211 under the elastic force of the second elastic sheet 221, the above processes are repeated for several times, so that the second elastic sheet 221 bounces back and forth, the second elastic sheet 221 collides with the rotating hook 211 back and forth, dust on the second elastic sheet 221 and the rotating hook 211 is separated, and the first contact part 21 and the second contact part 22 can be connected when a closing command is executed.
Example 2:
as shown in fig. 3 and 4, the present embodiment is different from embodiment 1 in that: in the present embodiment, only the drive mechanism 23 is replaced with that of embodiment 1.
In order to design the driving mechanism 23 with a simple structure, the driving mechanism 23 includes: the rotary disc 231 ', the pushing block 232 ' and the motor 233 ' are installed on the inner wall of the housing, the motor 233 ' is installed on the inner wall of the housing, the rotary disc 231 ' is fixed on the rotating shaft of the motor 233 ', the pushing block 232 ' protrudes from the edge of the rotary disc 231 ', and when the pushing block 232 ' contacts the second elastic sheet 221 or the first elastic sheet 212, the second contact point and the first contact point which are contacted with each other are separated.
Example 3:
as shown in fig. 5, the present embodiment differs from embodiment 1 only in that: the present embodiment is only modified from embodiment 1 in terms of the first contact portion 21, the second contact portion 22, and the drive mechanism 23.
The first contact part 21 is a socket, the second contact part 22 is a plug, the plug is inserted into the plug when the elevator door lock switch 2 is closed, the socket is used for connecting a driving component 24 'of the elevator door lock switch 2, the driving component 24' is used for driving the socket to move towards the plug when the elevator door is closed, and the plug is connected with the driving mechanism 23.
In order to design the driving mechanism 23 with a simple structure, the driving mechanism 23 includes: and the output part of the second electromagnetic type pushing component is fixed with the plug.
The first electromagnetic type pushing assembly and the second electromagnetic type pushing assembly are identical in structure, the second electromagnetic type pushing assembly is not provided with a second roller 255, a push rod of the second electromagnetic type pushing assembly is fixed with the plug, the plug is kept at a position close to the socket under the elastic force of the first spring only when the electromagnet is not electrified, the self opening and closing function of the elevator door lock switch 2 can be realized at the moment, and the socket and the plug can be separated when the elevator door is opened by the driving assembly 24'; the socket and the plug can be closed when the elevator is closed. When the electromagnet is electrified, the plug closed with the socket can be far away from the socket, and the state that the socket and the plug are closed can be recovered under the elastic force of the first spring.
Example 4:
as shown in fig. 6 to 8, the present embodiment differs from embodiment 1 only in that: the present embodiment is only a modification of the drive mechanism 23 on the basis of embodiment 1.
The drive mechanism includes: the hanging lug 24, the connecting assembly 25 and the third electromagnetic type pushing assembly are arranged on one side, away from the free end of the rotating hook 211, of the second elastic sheet 221, the hanging lug 24 is connected onto the second elastic sheet 221, the hanging lug 24 and the second elastic sheet 221 are integrally formed, the connecting assembly 25 is arranged between the hanging lug 24 and the third electromagnetic type pushing assembly, and when the rotating hook 211 is located at the closed position, the third electromagnetic type pushing assembly can be detachably connected with the hanging lug 24 through the connecting assembly 25.
The third electromagnetic type pushing assembly is identical to the first electromagnetic type pushing assembly in structure, the third electromagnetic type pushing assembly is not provided with the second roller 255, a push rod of the third electromagnetic type pushing assembly is used for being connected with the connecting assembly 25, the push rod extends after the third electromagnetic type pushing assembly is electrified, and the push rod shortens after the third electromagnetic type pushing assembly is powered off.
In order to prevent the third electromagnetic pushing assembly from interfering with the movement of the second elastic piece 221, and to enable the third electromagnetic pushing assembly to drive the second elastic piece 221 to move away from the first elastic piece 212 after the first contact 213 is in contact with the second contact 222, the connecting assembly 25 includes: a wedge 250, a mounting block 251, a second spring 252, a sliding block 253, a mounting cylinder 254, a second roller 255, a hanging rod 256, a connecting block 257, a third spring 258, a bayonet 259 and a fourth spring 260, wherein a push rod of a third electromagnetic pushing assembly is connected to a large end of the wedge 250, a small end of the wedge 250 extends in a direction away from the third electromagnetic pushing assembly, a sliding groove is formed between the third electromagnetic pushing assembly and the second elastic sheet 221, a sliding block 253 capable of sliding is mounted in the sliding groove, the sliding block 253 is connected to one end of the second spring 252, the other end of the second spring 252 is fixed to the mounting block 251, the mounting block 251 is mounted on the inner wall of the shell, the sliding block 253 can be kept at one end of the sliding groove away from the third electromagnetic pushing assembly under the elastic force of the second spring 252, the mounting cylinder 254 is mounted on the sliding block 253, the central line of the mounting cylinder 254 is parallel to the guiding direction of, the second roller 255 is rotatably installed at one end of the hanging rod 256, the other end of the hanging rod 256 extends into the top wall of the installation cylinder 254, the end of the hanging rod 256 far away from the second roller 255 can extend into the hanging lug 24, the hanging lug 24 is provided with a hanging hole for the hanging rod 256 to penetrate, when the sliding block 253 is positioned at one end of the sliding groove far away from the third electromagnetic pushing assembly, the hanging rod 256 is aligned with the hanging hole, the hanging rod 256 is connected with a connecting block 257, the connecting block 257 is connected to one end of a third spring 258, the other end of the third spring 258 is installed at the top wall of the installation cylinder 254, a telescopic hole is formed by recessing the bottom wall in the installation cylinder 254, a clamping pin 259 is arranged in the telescopic hole, the installation cylinder 254 can be used for the wedge block 250 to extend, the bottom surface of the wedge 250 is recessed to form a clamping hole for inserting one end of the clamping pin 259, the other end of the wedge 259 is fixed to one end of a fourth spring 260, the, the end of the detent 259 extending into the detent hole is hemispherical.
In order to prevent the third spring 258 from being damaged due to the hanging rod 256 being hung by the third spring 258 for a long time, a hanging assembly 27 for hanging the hanging rod 256 is installed in the installation cylinder 254, and the hanging assembly 27 includes: the central shaft 271, the coil spring 272, the rotary drum 273 and the stay cord 274, set up the cavity in the installation cylinder 254 top wall, install the central shaft 271 in the cavity, the central shaft 271 is located the horizontal direction, it has the rotary drum 273 to encircle outside the central shaft 271, the rotary drum 273 can be rotatory around the central shaft 271, the rotary drum 273 can be installed on the cavity inner wall rotatoryly, there is the distance between rotary drum 273 and the central shaft 271, there is the coil spring 272 between rotary drum 273 and the central shaft 271, the inner fixed to the central shaft 271 of coil spring 272, the outer end fixed to the rotary drum 273 inner wall of coil spring 272, the convolution of the inner of stay cord 274 is outside the rotary drum 273, the outer end of stay cord 274 penetrates in the installation cylinder 254 and is fixed to connecting block 257.
The working principle of the embodiment is as follows: when the third electromagnetic pushing assembly does not act on the second elastic piece 221 and the first contact 213 and the second contact 222 are in contact, the third electromagnetic pushing assembly is not energized, the wedge 250 is kept close to the third electromagnetic pushing assembly, the hanging rod 256 is kept aligned with the hanging hole in the hanging lug 24 under the elastic force of the second spring 252, the hanging rod 256 is retracted into the mounting cylinder 254 under the elastic force of the third spring 258, the pull rope 274 is completely pulled out, and the coil spring 272 is deformed. After the first contact 213 and the second contact 222 are contacted, when the first contact 213 and the second contact 222 need to be separated, the third electromagnetic pushing assembly is powered on, the third electromagnetic pushing assembly pushes the wedge 250 into the mounting cylinder 254, the wedge 250 presses the hanging rod 256 through the second roller 255, so that the hanging rod 256 is inserted into the hanging lug 24, the bayonet 259 is also inserted into the bayonet hole, then, the third electromagnetic pushing assembly retracts, so that the wedge 250 drives the mounting cylinder 254, the hanging rod 256, the hanging lug 24 and the second elastic sheet 221 to move towards the third electromagnetic pushing assembly through the bayonet 259, the first contact point and the second contact point are separated, along with the movement of the second elastic sheet 221, the elastic potential energy of the second spring 252 becomes larger, after the first contact point and the second contact point are separated, the elastic potential energy of the second spring 252 is larger, the bayonet 259 is forced to be separated from the bayonet hole, and finally, the wedge 250 is separated from the bayonet 259 under the elastic force of the second spring 252, the wedge 250 releases the mounting cylinder 254, the hanging rod 256 and the hanging lug 24, finally the wedge 250 is far away from the mounting cylinder 254, the hanging rod 256 is separated from the hanging lug 24, the first contact point and the second contact point are contacted again under the elastic force of the second elastic sheet 221, and the mounting cylinder 254 is reset under the elastic force of the second spring 252.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. An elevator door lock switch, comprising: the first contact part and the second contact part are in clutch correspondence with the opening and closing of an elevator door lock switch, the driving mechanism is arranged beside the first contact part and the second contact part and used for acting on the first contact part and/or the second contact part, when the elevator door lock switch is closed, the driving mechanism drives the first contact part and the second contact part to be in clutch, and the driving mechanism does not influence the normal opening and closing of the first contact part and the second contact part.
2. The elevator door lock switch according to claim 1, wherein the first contact portion comprises: rotatory hook, first shell fragment and first contact, the second contact site includes: the elevator door comprises a first contact portion, a second contact portion, a first elastic sheet and a second contact portion, wherein the first contact portion and the second contact portion are arranged in a shell, one end of a rotating hook can be rotatably arranged on the inner wall of the shell, the other end of the rotating hook is fixed to one end of the first elastic sheet, the other end of the first elastic sheet is fixed with a first contact, a second contact which is in contact with the first contact is arranged beside the first contact, the second contact is arranged at one end of the second elastic sheet, the other end of the second elastic sheet is arranged on the inner wall of the shell through a mounting seat, the rotating hook drives the first contact to be far away from the second contact when the elevator door is opened, and the first contact.
3. The elevator door lock switch according to claim 2, wherein the driving mechanism comprises: the electromagnetic pushing assembly is used for pushing the first elastic sheet to rotate in the direction departing from the second elastic sheet or pushing the second elastic sheet to rotate in the direction departing from the first elastic sheet.
4. The elevator door lock switch of claim 3, wherein the electromagnetic urging assembly comprises: the body, the electro-magnet, first spring, permanent magnet and push rod, at the internal wall mounting of casing have the body, this internal electro-magnet that is provided with, be provided with the permanent magnet relatively with the electro-magnet, the permanent magnet is fixed on the push rod, the push rod is led to the lapse at the body, the push rod is used for with the shell fragment, the electro-magnet circular telegram back enables the first contact and the separation of second contact of mutual contact, first spring one end is fixed with the push rod, the first spring other end is fixed to the body, when the electro-magnet does not have the circular telegram under first spring force keep the push rod to keep away from.
5. The elevator door lock switch according to claim 4, wherein the push rod is provided with a first roller capable of rotating automatically, and the first roller is used for contacting with the first elastic sheet or the second elastic sheet.
6. The elevator door lock switch according to claim 2, wherein the driving mechanism comprises: the shell is internally provided with a motor, a rotating shaft of the motor is fixed with a rotating disc, the edge of the rotating disc is protruded with a pushing block, and when the pushing block is in contact with a first elastic sheet or a second elastic sheet, a first contact and a second contact which are in contact with each other are separated.
7. The elevator door lock switch according to claim 2, wherein the first contact portion is a socket, the second contact portion is a plug, the plug is inserted into the plug when the elevator door lock switch is closed, the socket is used for connecting a driving member of the elevator door lock switch, the driving member is used for driving the socket to move toward the plug when the elevator door is closed, and the plug is connected to the driving mechanism.
8. The elevator door lock switch according to claim 7, wherein the driving mechanism comprises: and the output part of the second electromagnetic type pushing component is fixed with the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991283.9U CN210682912U (en) | 2019-06-24 | 2019-06-24 | Elevator door lock switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991283.9U CN210682912U (en) | 2019-06-24 | 2019-06-24 | Elevator door lock switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210682912U true CN210682912U (en) | 2020-06-05 |
Family
ID=70890221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920991283.9U Expired - Fee Related CN210682912U (en) | 2019-06-24 | 2019-06-24 | Elevator door lock switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210682912U (en) |
-
2019
- 2019-06-24 CN CN201920991283.9U patent/CN210682912U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 |