CN201508784U - Improved motor switch capable of locking tripping mechanism - Google Patents
Improved motor switch capable of locking tripping mechanism Download PDFInfo
- Publication number
- CN201508784U CN201508784U CN2009202227809U CN200920222780U CN201508784U CN 201508784 U CN201508784 U CN 201508784U CN 2009202227809 U CN2009202227809 U CN 2009202227809U CN 200920222780 U CN200920222780 U CN 200920222780U CN 201508784 U CN201508784 U CN 201508784U
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- China
- Prior art keywords
- motor switch
- safety lock
- switch
- lock unit
- handle
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- Expired - Lifetime
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Abstract
The utility model relates to an improved motor switch capable of locking a tripping mechanism; a safety lock unit is arranged on the motor switch and on the side of the moving path of a handle, can lock a trip unit in the motor switch, so that the handle or the trip testing unit of the motor switch can not work, so as to control and ensure the forceful off of a main power circuit; and simultaneously, the safety lock unit can drive an indicating unit to work and display the power-off, and can be linked with a micro switch to facilitate remote monitoring.
Description
Technical field
The utility model relates to a kind of locking device of motor switch, particularly about a kind of improvement that is directly arranged in the motor switch locking device with pinning escape mechanism.
Background technology
Motor switch is the main device that power supply is given machinery or electrical equipment.The most frequently used motor switch is that (No-Fuse Breaker is called for short NFB to no-fuse switch; Or Molded Case Circuit Breaker, be called for short MCCB etc.), or residual current circuit breaker.Based on no-fuse switch or residual current circuit breaker is a kind of overcurrent protective device; when it is in the off-normal position of escape (Trip) and machinery is shut down; have a lot of probability to be because lightning causes, or undesired electric current produce excessive pulse and escape.Common this situation is as long as the test and the replacement button of operator presses switch just can make no-fuse switch or residual current circuit breaker continue the path supply of current machinery is remained in operation.
Many electric accidents of past all occur in the maintenance or miscarriage operation of motor switch.Because in the maintenance of equipment of using power supply, a knowledge of often being misread by work on the spot person is: the electrical safety that takes in the machinery promptly interdicts the power button, can cut off all power supplys fully! But in fact, electrical safety in the machinery promptly interdicts the power button, only cut off the power supply in solenoid loop and produce escape, this danger button is inreal to cut off main power supply, but almost most people all to take for be to have cut off main power supply.
This wrong cognitive crisis that produces; cause when the operating personnel repairs dynamic power machine or enters machinery inside in the maintenance; just in case unwitting other third party's processes are arranged; see that no-fuse switch or residual current circuit breaker are in the off-normal position of escape (Trip); and machinery has stopped running; take for is because lightning or overcurrent cause escape; just push test and replacement button favorably; the handle that starts after the escape mechanism and pull no-fuse switch or residual current circuit breaker drops into again; this danger machinery will start immediately and produce danger, and many is that the harm of power source is all because cause like this with the motor.
Regulation according to the 254 of current law labourer safety and sanitation facility rule: " employer be engaged in this circuit, this circuit holder after for open circuit or near the laying of this circuit working thing, build, check, repair, during operation such as paint; should be after confirming open circuit; take following facility with regard to this circuit: one, the switch of open circuit should be locked or be indicated " forbidding sending ", " in the power failure operation " or the supervision personnel are set and monitor it in operation." lack proper property based on these rules; in the power failure operation, can allow manager or employer select " electric switch is locked " or sign " forbidding sending ", " in the power failure operation "; to make manager or employer all dislike trouble; to install " electric switch is locked " that prevents the accident best results additional; to lock; the unexpected problem that results in above electric operation exists for a long time, but fails to properly settle always and utilize " sign forbids sending in electricity, the power failure operation " mode that is easy to generate misunderstanding most to replace so give up.
Therefore the utility model continues to provide a good practical motor switch locking device to create except extending a series of before this relevant innovation and creation of having applied for of applicant.
The utility model content
Main purpose of the present utility model, be to provide a kind of locking device of motor switch, be directly arranged in the motor switch and be positioned at the side of its handle active path, can limit escape mechanism location does not move, and prevent handle or its escape test cell of mains switch (CB) all can't produce action, therefore in maintenance, can prevent this motor switch of other staff's error starting.
A time purpose of the present utility model except a kind of motor switch of aforementioned purpose is provided, and has the mechanism of indicating member display and operation further, when lock in this safety lock unit, can see the situation of whether locking on motor switch.
A purpose more of the present utility model, except a kind of motor switch of aforementioned purpose is provided, and has the mechanism of long-range display and operation further, when lock in this safety lock unit, but the loop of conducting or shutoff signal end makes near-end or long-range control end display and operation situation.
For achieving the above object, the utility model designs a kind of locking device of motor switch, and it comprises that one has the motor switch of escape mechanism, is directly arranged in the motor switch with a safety lock unit and is positioned at the side of its handle active path.But akinesia is pinned with this escape mechanism by the escape mechanism of this motor switch inside of motion end touch-control of this safety lock unit, forces outage to control via the main power circuit of this motor switch.
Preferable, this motor switch is no-fuse switch or residual current circuit breaker, and this safety lock unit is a kind of safety lock mains switch that is equipped with key.No-fuse switch or residual current circuit breaker all have the handle that can pull, this handle is because will can be operated the control position that is anchored in " energising or title drop into (ON) " or " (OFF) opens circuit " after personnel pull respectively with the desirability of circuit turn-on or cut-out.When lock in this safety lock unit, also can on motor switch, see the situation of whether locking by indicating member.
So handle can be anchored in the reason of a certain control position after pulling, be because in this switch one group of escape mechanism is arranged, the design of this escape mechanism has different designs according to each producer, but be nothing but to have after a main spring pulls displacement for handle, if can not got back to the position of " (OFF) opens circuit " automatically by escape mechanism location.For example, the interior bonds of handle a location-plate and can be moved along with handle.The escape described in the utility model mechanism upper end hook plate that is being pivoted, this hook plate has a dog point, and one in order to hook the effect end of location-plate.There is a little spring controlling this hook plate and enables in a low-angle, back and forth to get back to the normality position.When location-plate arrived a certain ad-hoc location along with handle moves, the effect end of hook plate was subjected to the effect of little spring, and its effect end hook lives in to state location-plate, and handle can not be moved, and this moment, in general this motor switch was the control position that is in " energising (ON) ".Do the time spent when the dog point of hook plate is subjected to external force, just can make this hook plate swing, make its effect end no longer hook location-plate, so handle can be subjected to the power of spring and mobile return, at this moment in general, this switch is the control position that is in " (OFF) opens circuit ".
As previously mentioned, there are several active forces can make this hook plate swing and release handle, the firstth, when overcurrent, cross the displacement that hot stretched produces by the copper cash of this switch inside, promote hook plate.Second kind of situation is to press the depression bar that touches escape (Trip) test cell, makes its dog point stressed and swing.Another kind of situation is a forced cut-out, pulling handle just, the external force of borrowing pulling handle, promote the hook plate swing earlier, make its effect end (hook end) decontrol above-mentioned location-plate, handle is in case because of location-plate loses the resistance that is hooked, and can be subjected to the restoring force of spring and automatic fast-moving and return.
One of design that the utility model is main is exactly by the safety lock unit, though be with push away or with the mode of drawing, can both stop location-plate to move arbitrarily, therefore be subjected to pressing the depression bar pressure that touches escape (Trip) test cell no matter be, or pulling handle, all can't promote location-plate and move arbitrarily, so handle just can not move.
The wherein a kind of design in the utility model safety lock unit, can comprise one can be with key turns the assembly of interlock, the motion end of this assembly can stretch into and produce displacement action in the motor switch, control the escape mechanism of motor switch, make handle or its escape test cell of this motor switch all can't produce action, force outage to control and to guarantee main power circuit.Preferably, the locking device of motor switch of the present utility model more comprises a sensitive switch, the lead-out terminal group of this sensitive switch is for being external in signal end, this sensitive switch is subjected to this safety lock unit institute interlock, therefore when lock in this safety lock unit, can make near-end or long-range control end display and operation situation by the loop of this sensitive switch or other equivalent elements conducting or shutoff signal end.
The locking device of motor switch of the present utility model can have the following effect of improving: force to pin mains switch (CB) by safety lock mains switch (KEYLOCK) and do not make action, therefore can prevent other staff's misoperation starter motor switch in maintenance.Safety lock of the present utility model unit, be directly arranged in the motor switch and be positioned at the side of its handle active path, when mating traditional distribution box like this, only the perforate of grip area directly down need be extended lengthening enlarges, do not need to make in addition new distribution box, just can allow safety lock of the present utility model unit be exposed to outside the distribution box, convenient key operated control, the handled easily simply again of constructing used.The utility model part changes the structure of conventional motors switch, can limit the involuntary maneuver of motor switch handle, promotes the maintenance fail safe.
Motor switch of the present utility model is operated the control position that is anchored in " energising or title drop into (ON) " or " (OFF) opens circuit " after personnel pull, and utilize and to pull when locking, also can on motor switch, see the situation of whether locking by indicating member with the safety lock unit by the handle.In addition, the loop of conducting synchronously or shutoff signal end makes near-end or long-range control end display and operation situation.
Description of drawings
Below pass through preferable specific embodiment and accompanying drawing thereof, the effect that further specifies the purpose of this utility model, technology contents, characteristics and reached.
Fig. 1 is the schematic appearance of overlooking that the utlity model has the motor switch improvement of pinning escape mechanism.
Fig. 2 is the escape mechanism that the motion end of explanation safety lock unit is pressed electric shock machine switch inside, and escape mechanism is pinned, and makes the structure explanation schematic diagram of handle akinesia.
Fig. 3 is the side-looking action schematic diagram of the utility model motor switch internal locking mechanism embodiment.
The primary clustering symbol description:
10. motor switch, 12. handles, 20. safety lock unit, 22. protruded stigmas, 24. inclined-planes, 26. motion ends, 28. the hook end, 30. keys, 40. sensitive switches, 42. fine motion sheets, 50. escape mechanisms, 52. location-plate, 54. hook plates, 56. effect ends, 58. second location-plates, 60. indicating members.
Embodiment
Motor switch improvement with pinning escape mechanism of the present utility model, preferred embodiment as shown in Figure 1 to Figure 3, it comprises a motor switch 10, this motor switch 10 is preferably a no-fuse switch or a residual current circuit breaker, in any case, this motor switch 10 has is located at inner overcurrent escape mechanism, and one is located at outside handle 12 in order to the control main power circuit.This motor switch 10 is characterised in that: comprise a safety lock unit 20 further, and this safety lock unit 20 is to be directly arranged on the motor switch 10, and is positioned at the side of these handle 12 active paths.
There is an escape mechanism 50 motor switch 10 inside, as are familiar with known to this operator, and this escape mechanism 50 has a main spring (figure slightly) and pulls location, displacement back for handle 12.The design of this escape mechanism 50 has different designs according to each producer, and the person only is a kind of structural representation as shown in Figure 3.Handle 12 in case released out by escape mechanism 50, can be got back to the position of " (OFF) opens circuit " by the elastic force of main spring after being pulled to the position of " energising (ON) " automatically.
In Fig. 3, the interior bonds of demonstration handle 12 location-plate 52 and can be moved along with handle 12.The above-mentioned escape mechanism 50 upper ends hook plate 54 that is being pivoted, this hook plate 54 has a dog point, with an effect end 56 in order to hook location-plate 52.As be familiar with known to this operator, there is a little spring (figure is slightly) controlling this hook plate 54, enable in a low-angle, back and forth to get back to the normality position.When location-plate 52 arrives a certain ad-hoc location along with handle 12 moves, the effect end 56 of hook plate 54 is subjected to the effect of little spring, and its effect end 56 hooks above-mentioned location-plate 52, and handle 12 can not be moved, this moment, in general this motor switch was the control position that is in " energising (ON) ".
When being subjected to external force, the dog point of hook plate 54 does the time spent, handle 12 just can make 54 swings of this hook plate, make its effect end 56 no longer hook above-mentioned location-plate 52, so can be subjected to the power of spring and mobile return, this moment, in general this switch was the control position that is in " (OFF) opens circuit ".
The motion end 26 of this safety lock unit 20, but these motor switch 10 inside of touch-control do not make this handle 12 actions, force outage really to control via the main power circuit of this motor switch 10.Though the motion end 26 of demonstration safety lock unit 20 in Fig. 3 is subjected to inclined-plane 24 compressings and the back (referring to Fig. 2) that descends, its hook end 28 will hook in order to control handle 12 location, makes handle 12 second location-plate 58 of activity arbitrarily.But anyway, the motion end of safety lock unit 20 26 no matter be with push away or with draw or other equivalent way stop second location-plate 58 mobile arbitrarily, all be intention scope of the present utility model.
Above-mentioned safety lock unit 20 is preferably a kind of safety lock mains switch, can be after locking, and when control handle 12 location do not make action, power supply is directly opened circuit, and this safety lock unit 20 is controlled by a key 30 (referring to Fig. 2).When lock in safety lock unit 20, but also interlock is located at indicating member 60 on this motor switch 10, and shows and whether lock.
Above-mentioned motor switch 10 is more to comprise a sensitive switch 40 (referring to Fig. 1 and Fig. 2) preferably, and for being external in signal end, this sensitive switch 40 is subjected to this safety lock unit institute interlock.Referring to Fig. 1, lower end energy interlock one protruded stigma 22 of safety lock unit 20, when key 30 turn safety lock unit 20, this protruded stigma 22 can be oppressed the fine motion sheet 42 of this sensitive switch 40, and make the loop of sensitive switch 40 or other equivalent elements conducting or shutoff signal end, making near-end or long-range control end display and operation situation, for example is that sign is the state that is in maintenance, and main power source is de-energized.
Though above stated specification is enumerated some preferred embodiments with Chen Ming feasibility of the present utility model, as is well known, it is not in order to limit the utility model.Any those who are familiar with this art in not breaking away from spirit of the present utility model and scope, can carry out the change and the retouching of a little equivalence, but all must belong to scope of patent protection of the present utility model.
Claims (6)
1. one kind has the motor switch improvement of pinning escape mechanism, comprises that one has the motor switch of escape mechanism, and this motor switch has is located at inner overcurrent escape mechanism, and one is located at the handle of motor switch outside in order to the control main power circuit; One has the safety lock unit of at least one motion end; With an indicating member; It is characterized in that: described safety lock unit be arranged on this motor switch handle the side and be connected with main power source, the motion end of this safety lock unit can stretch into the inner escape mechanism that touches and pin this motor switch inside that presses of motor switch; Described indicating member is connected with the safety lock unit.
2. the motor switch improvement with pinning escape mechanism as claimed in claim 1, it is characterized in that: described motor switch is no-fuse switch or residual current circuit breaker.
3. the motor switch improvement with pinning escape mechanism as claimed in claim 1, it is characterized in that: described safety lock unit is the safety lock mains switch.
4. the motor switch improvement with pinning escape mechanism as claimed in claim 3, it is characterized in that: described safety lock unit is controlled by a key.
5. as claimed in claim 1 have a motor switch improvement of pinning escape mechanism, it is characterized in that: described safety lock unit be arranged on this motor switch handle right-hand or left one of them.
6. the motor switch improvement with pinning escape mechanism as claimed in claim 1, it is characterized in that: described safety lock unit more comprises a sensitive switch, this sensitive switch has for the lead-out terminal group that is external in signal end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202227809U CN201508784U (en) | 2009-09-23 | 2009-09-23 | Improved motor switch capable of locking tripping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202227809U CN201508784U (en) | 2009-09-23 | 2009-09-23 | Improved motor switch capable of locking tripping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201508784U true CN201508784U (en) | 2010-06-16 |
Family
ID=42469909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202227809U Expired - Lifetime CN201508784U (en) | 2009-09-23 | 2009-09-23 | Improved motor switch capable of locking tripping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201508784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546839A (en) * | 2016-06-28 | 2018-01-05 | 陈锡瑜 | The electric capacity tripping device and its method of automatic conversioning power |
-
2009
- 2009-09-23 CN CN2009202227809U patent/CN201508784U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546839A (en) * | 2016-06-28 | 2018-01-05 | 陈锡瑜 | The electric capacity tripping device and its method of automatic conversioning power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100616 |
|
| CX01 | Expiry of patent term |