CN108400031A - Limit switch reset key - Google Patents
Limit switch reset key Download PDFInfo
- Publication number
- CN108400031A CN108400031A CN201710065757.2A CN201710065757A CN108400031A CN 108400031 A CN108400031 A CN 108400031A CN 201710065757 A CN201710065757 A CN 201710065757A CN 108400031 A CN108400031 A CN 108400031A
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- CN
- China
- Prior art keywords
- reset
- plunger
- assembly
- limit switch
- contact
- Prior art date
- 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.)
- Granted
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Classifications
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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
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- Push-Button Switches (AREA)
Abstract
Embodiment is usually related to a kind of limit switch, which includes：Switch case；The contact block assembly being configured for mount to inside switch case, which includes contact plunger and switching circuit；Head assembly including bar, the head assembly are configured and attached to switch case；It is configured for mount to the reset plunger of enclosure interior, which is configured to interact with head assembly and contact plunger；And the reset assembly including reset button and resetting shaft, the wherein reset assembly are arranged in the inside of head assembly, and wherein resetting shaft is configured to interact with reset plunger.
Description
Cross reference to related applications
It is not applicable.
The statement of research or development about federal government's patronage,
It is not applicable.
Reference to microfiche annex
It is not applicable.
Background technology
Several applications that limit switch can be used for measuring the physical motion of one or more objects.Limit switch can
Include designed for contacting the part to be detected to movement via physical contact with object.In addition, limit switch can wrap
Include the indicant for specifically detecting, such as the alarm when detecting some movement or warning.Limit switch can be used for controlling
System processed, safety interlock system, counts the object by point flexibility detecting system, and for determining depositing for object
Or be not present, by, the endpoint of positioning and stroke.
Invention content
In embodiment, limit switch may include：Switch case；The contact block group being configured for mount to inside switch case
Part, which includes contact plunger and switching circuit；Head assembly including bar, the head assembly are configured and attached to switch
Shell；It is configured for mount to enclosure interior, is configured to the reset plunger to interact with head assembly and contact plunger；And including
The reset assembly of reset button and resetting shaft, wherein reset assembly are arranged in the inside of head assembly, and wherein resetting shaft constructs
It interacts at reset plunger, wherein when bar is rotated relative to switch case, the axis inside head assembly makes reset plunger
Bias is resisted to move down, wherein when making reset plunger move down predetermined amount, due to the bias on resetting shaft, resetting shaft
It is moved in the opening in reset plunger, wherein contact plunger also is resisted to be biased towards and moved down when reset plunger moves down
It is dynamic, and wherein contact plunger is configured to control switching circuit in the position of contact block component internal based on contact plunger.
In embodiment, the method for operating limit switch may include：Reset plunger is assembled into the shell of limit switch
In body, between contact block assembly of the head assembly with limit switch of limit switch, wherein reset plunger and contact block assembly
Contact plunger interacts；Reset assembly is assembled in the inside of head assembly, wherein reset assembly interacts with reset plunger；
Make the axis of head assembly rotate to measure the physical motion of object will pass through the physical contact between axis and object；Due to axis
Rotation and make reset plunger resist bias move down；Contact plunger is set to resist bias due to moving down for reset plunger
It moves down；Switching circuit is controlled based on the movement of contact plunger；When making reset plunger move down predetermined amount, via multiple
Interaction between hyte part and reset plunger locks reset plunger in place；By making reset assembly move away from reset post
It fills in and activates reset plunger and move up；Reset plunger is set to move up based on bias；Make contact plunger to moving up based on bias
It is dynamic；And switching circuit is controlled based on the movement of contact plunger.
In embodiment, limit switch may include：Head assembly including axis；It is configured and attached to the shell of head assembly；Structure
It causes that contact block assembly inside housings is installed, which includes contact plunger and switching circuit；It is pressed including resetting
The reset assembly of button, resetting shaft and resetting spring, wherein the reset assembly is arranged via the recessed opening in head assembly
The inside of head assembly；And it is configured to the reset plunger contacted with axis and contact plunger, wherein being surveyed when by limit switch
When amount, axis is rotated relative to switch case, to make reset plunger resist bias move down, wherein when make reset plunger to
When lower mobile predetermined amount, resetting shaft is made to be moved in the opening in reset plunger due to the bias on resetting shaft, wherein
When reset plunger moves down, contact plunger is also resisted bias and is moved down, and wherein contact plunger is configured to be based on contact plunger
Control switching circuit in the position of contact block component internal, and wherein when user pushes reset button by resetting shaft from multiple
It is removed in opening in the plunger of position, reset plunger and contact plunger is thus discharged due to bias to move up.
Description of the drawings
For the more complete understanding disclosure, referring now to brief description below, and in conjunction with attached drawing and detailed description,
In similar reference numeral represent similar component.
Fig. 1 shows the decomposition view of limit switch according to an embodiment of the present disclosure.
Fig. 2 shows the side views of a part for limit switch according to an embodiment of the present disclosure.
Fig. 3 shows the front view of a part for limit switch according to an embodiment of the present disclosure.
Fig. 4 A- Fig. 4 B show the sectional view of a part for limit switch according to an embodiment of the present disclosure.
Fig. 5 shows the decomposition view of the reset assembly according to an embodiment of the present disclosure being used together with limit switch.
Specific implementation mode
It should first understand that, although the exemplary embodiments of one or more embodiments have been illustrated below, institute is public
The system and method opened can be implemented using any number of technology, no matter being currently known or not yet existing.This public affairs
It opens and should not be limited to illustrative embodiment, attached drawing and technology illustrated below absolutely, but can be in the model of the appended claims
Together with making modification in the full scope of their equivalent program in enclosing.
The brief definition of term should be applicable in through the application below.
Term " comprising " expression include but not limited to, and should by usually used in this patent context in a manner of come
It explains.
The phrase " in one embodiment ", " according to one embodiment " etc. usually indicate to be connected on the specific spy after the phrase
Sign, structure or characteristic may include at least one embodiment of the present invention, and may include in the more than one of the present invention
In embodiment（Importantly, such phrase is not necessarily referring to identical embodiment）.
If something is described as " illustrative " or " example " by this specification, it should be understood that it refers to nonexclusive
The example of property.
Term " about " or " about " etc. can indicate that this is specific digital or alternatively approaches this when being used in number
The range of optional network specific digit, as will be appreciated by a person skilled in the art；And
If stated elements or feature "available" in this specification, " can with ", " can ", " should ", " will ", " preferably ", " can
Can ", " usual ", " optionally ", " such as ", " frequent " or " possibility "（Or other such terms）Including or have characteristic,
So the specific component or feature are without including or with the characteristic.Such component or feature may be optionally included in one
In a little embodiments, or it can be excluded.
Embodiment of the disclosure includes the system and method for providing the reset assembly being used together with limit switch,
Middle reset assembly includes simplified structure.
The common limit switch with reset function includes the independent reset assembly portion for being attached to limit switch shell
Part.The attachment is formed in the interface between shell and reset assembly, it is necessary to by the interfacial seal to prevent external particle from entering shell
Body simultaneously damages the device.Independent reset assembly component may include assembled multiple before reset assembly is attached to shell
Component.
Embodiment of the disclosure may include the reset assembly for being configured to be attached directly to limit switch shell.In addition, can
Reduce the quantity for the component needed for reset assembly.Reset assembly can interact with reset plunger inside housings,
The movement of middle reset plunger can control the switching circuit of limit switch.In addition, can by and the attachment of shell maintain reset group
The position of part and orientation, to allow user to have easy access to control reset assembly.
Referring now to fig. 1, the decomposition view of limit switch 100 is shown.Limit switch 100 may include：Shell 102, lid
Component 104, contact block assembly 106, reset assembly 108 and head assembly 110.Cap assemblies 104 can be attached to via screw 105
Shell 102, and contact block assembly 106 can be surrounded inside housings.In some embodiments, cap assemblies 104 may include using
Family interface 103, such as screen, display, and/or button.
In the embodiment shown in fig. 1, reset assembly 108 may include：Reset button 112, resetting shaft 116 and sealing
Ring 118.Reset assembly 108 can be installed in the opening 120 of head assembly 110.In some embodiments, limit switch 100 can
Include positioned at the reset plunger 122 shell 102 inside and contacted at least part of head assembly 110.The reset plunger 122 can
Including the one or more groovings for being configured to interact with the resetting shaft of reset assembly 108 116（cut-out）124.In addition,
Reset plunger 122 can interact to provide the bias in reset plunger 122 with plunger spring 126.
When assembled, reset assembly 108 can be at least partially situated at the inside of head assembly 110.Limit switch 100 can be with
It does not include the independent reset housing for reset assembly 108.Reset assembly 108 can be attached directly to limit switch 100
Head assembly 110.In some constructions, reset button 112 can be the tab 113 or protrusion of protrusion, and the tab or protrusion can be from
Extend in head assembly 110 and user is easily accessible to the tab or protrusion to make reset button 112 move.
Head assembly 110 can be attached to shell 102 via screw 111.Head assembly 110 may include adjustable lever 130 and structure
Cause the adjusting rod screw 132 that adjustable lever 130 is attached to head assembly 110.Head assembly 110 may also comprise：It is bushing 134, attached
It is connected to the roller 136 of adjusting rod 130 and is attached to the axis 138 of adjusting rod via adjusting rod screw 132.Axis 138 can construct
It is moved inside head assembly.Axis 138 may be configured to contact with reset plunger 122.
Contact block assembly 106 may include the contact plunger 140 for being configured to interact with reset plunger 122.It can will contact
Block assembly 106 is fixed inside housings, and contact plunger 140 can be with the contact of a part for reset plunger 122.In some realities
It applies in example, above-described shell 102 and reset assembly 108 can be used together with any number of head assembly 110, wherein above
Shown head assembly 110 is an example.
Fig. 2 shows the side view of assembled limit switch 100, wherein reset assembly 108 is attached directly to shell
102.Head assembly 110 and cap assemblies 104 are also attached to shell 102.
Fig. 3 shows that the front view of assembled limit switch 100, wherein reset assembly 108 are attached directly to shell
102.Head assembly 110 and cap assemblies 104 are also attached to shell 102.
Fig. 4 A- Fig. 4 B show that the sectional view of assembled limit switch 100, wherein reset assembly 108 are directly attached
To shell 102.Reset button 112 can be installed in the opening 120 in head assembly.Reset assembly 108 may include sealing ring
118, which can be with the interior contact of opening 120, thus will 120 sealing of opening.The sealing ring 118 of reset assembly 108 can
Internal part inside shell 102 is separated with external environment sealing.
As described above, common limit switch may include the independent shell for reset assembly 108.When using independent
When reset assembly shell, there are attachment interfaces between shell, reset assembly shell and head assembly.It can be by these interfacial seals
To prevent the particle from external environment from entering shell.
In the embodiment shown in Fig. 4 A- Fig. 4 B, attachment interface by reset assembly 108 by directly merging group to the end
Reduce in part 110.There are attachment interfaces between head assembly 110 and shell 102.But in reset assembly 108 and head assembly 110
Between attachment interface have been reduced to smaller opening 120, which is sealed by the sealing ring 118 of reset assembly 108.This
Outside, sealing ring 118 can provide the sealing more more reliable than conventional attachment interface.
Resetting shaft 116 can be made towards the internal bias voltage of head assembly 110 by resetting spring 117.It can be via being configured to install
To one or more of opening 119 in reset button 112 positioning pin（dowel）Reset button 112 is attached group to the end by 121
Part 110.Resetting spring 117 can make the top of reset button 112 far from the outside bias of head assembly, while resetting shaft 116 can be attached
It is connected to the bottom of reset button 112.Therefore, resetting spring 117 can make resetting shaft 116 towards 122 inward bias of reset plunger.It is multiple
When position button 112 could attach to the tab 113 of protrusion of the resetting shaft 116 to push reset button 112 as user, resetting shaft
116 resist the inside for being biased to separate shell 102 from resetting spring 117 and move.
As shown in Figure 4 B, the resetting shaft 116 of reset assembly 108 can be with the reset plunger 122 inside head assembly 110
Interaction.Resetting shaft 116 may be configured to the grooving that reset plunger 122 is moved to when grooving 124 is aligned with resetting shaft 116
In one of 124.Reset plunger 122 can be with the axis 138 of head assembly 110 and 140 phase of contact plunger of contact block assembly 106
Interaction.
When limit switch 100 is assembled, may be present between reset plunger 122 and contact plunger 140 by contact block bullet
Compressing force caused by spring 142.In addition, may be present between reset plunger 122 and axis 138 caused by plunger spring 126
Compressing force.The bar 130 of head assembly 110（Illustrated above）It could attach to axis 138.When by being carried out using limit switch 100
Measurement and axis 138 is rotatable when making the rotation of adjusting rod 130, mobile, displacement or squeezing in other aspects, to resist plunger
The bias of spring 126 pushes down on reset plunger 122.Once reset plunger 122 has moved down scheduled length, resetting shaft
116 can be aligned with the grooving 124 of reset plunger 122 and be moved due to bias of the resetting spring 117 in reset button 112
It enters in grooving 124, thus locking reset plunger 122 prevents any other vertically move.Reset plunger 122 moves down
Predetermined length can be based on each element of limit switch 100 size, the measurement that is carried out using limit switch 100 and limit open
100 application specific details are closed to determine.In some embodiments, the predetermined length that reset plunger 122 moves can be about 4 millis
Rice.
When making bar 130 move and axis 138 causes reset plunger 122 to move down, reset plunger 122 can also resist bullet
The bias of spring 142 pushes down on contact plunger 140.The movement of contact plunger 140 can be by the switch inside contact block assembly 106
Circuit 144 is opened from normal（NO）It is contact activated to arrive normally closed（NC）Contact.In other words, when reset plunger 122 is to moving down
When dynamic predetermined amount, 140 controllable switch circuit 144 of moving contact plunger is switched to the second position from first position.Switching circuit
144 actuating can initiate inside limit switch 100 another action, such as the activation of alarm and/or warning, switch by
The communication of actuating or another similar action.In some embodiments, the movement of reset plunger 122 can make switching circuit
144 are moved to and are contacted with another contact 145, to contact the closing of circuit in block assembly 106.
After the grooving 124 for having utilized reset plunger 122 locks resetting shaft 116, when user is via the tab 113 of protrusion
When pushing reset button 112, resetting shaft 116 can be released from the grooving 124 of reset plunger 122.In addition, bar 130
（And/or other elements of head assembly 110）It is releasable and/or return to initial position.When user discharges bar 130 and will answer
Position button 112（With therefore resetting shaft 116）When release, due to from contact block spring 142 and resetting spring plunger spring 126
Bias and make reset plunger 122 and contact plunger 140 by return to their original locations.
Fig. 5 shows the decomposition view of reset assembly 108, shows reset button 112, resetting spring 117, resetting shaft
116 and sealing ring 118.In addition, positioning pin 121 can be incorporated into head assembly 110.In some embodiments, sealing ring 118
It could attach to the recess 516 in resetting shaft 116.In some embodiments, pressable resetting spring 117 is against reset button
112 top 517.In some embodiments, resetting shaft 116 could attach to the bottom 512 of reset button 112.
Embodiment may also comprise the illustrative assembling process of limit switch 100.Head assembly 110 could attach to shell 102,
Wherein the head assembly includes the axis 138 extended from head assembly 110 at least partly.It can be by resetting shaft 116,118 and of sealing ring
Resetting spring 117 is installed in the opening 120 of head assembly 110.Reset button 112 could attach to resetting shaft 116.Such as Fig. 1-Fig. 3
Shown in, it can be via screw 132 by bar 130（Optionally, which includes roller 136）It is attached to axis 138.Head assembly 110 can be with
Including or can not include bushing.Reset button 112（With whole reset assemblies 108）Can be located at 110 axis 138 of component with
The adjacent position of attachment point between bar 130.In some embodiments, most reset button 112（In addition to the tab of protrusion
Except 113）The inside of the opening 120 of head assembly can be recessed into.This can prevent reset assembly 108 from surprisingly being moved caused by external source
It is dynamic, while user being made to be close to raised tab 113.
In the first embodiment, limit switch may include：Switch case；The contact being configured for mount to inside switch case
Block assembly, which includes contact plunger and switching circuit；Head assembly including bar, the head assembly are configured and attached to
Switch case；It is configured for mount to the reset plunger of enclosure interior, which is configured to and head assembly and contact plunger phase
Interaction；And the reset assembly including reset button and resetting shaft, wherein reset assembly are arranged in the inside of head assembly, and
Wherein resetting shaft is configured to interact with reset plunger, wherein when bar is rotated relative to switch case, in head assembly
The axis in portion, which resists bias, makes reset plunger move down, wherein when making reset plunger move down predetermined amount, due to resetting
Bias on axis and so that resetting shaft is manoeuvred into the opening in reset plunger, wherein being connect when reset plunger moves down
Plug of striking the post also is resisted bias and is moved down, and wherein contact plunger is configured to based on contact plunger in contact block component internal
Position control switching circuit.
Second embodiment may include the limit switch of first embodiment, and wherein reset button is opened including one or more
Mouthful, one or more of openings are configured to be fixed using the one or more positioning pins extended from head assembly.
3rd embodiment may include the limit switch of first or second embodiments, and wherein reset button is configured about
Tie point between reset button and head assembly and rotate, and wherein push resetting shaft at the top of reset button from reset
It is removed in the opening of plunger.
Fourth embodiment may include the limit switch of any embodiment in first embodiment to 3rd embodiment, wherein multiple
Position button includes the tab of protrusion, which is configured to the extension of the overthe openings in head assembly.
5th embodiment may include the limit switch of any embodiment in first to fourth embodiment, wherein reset assembly
Including the sealing ring for being configured to seal using head assembly.
Sixth embodiment may include the limit switch of any embodiment in the first to the 5th embodiment, and the limit switch is also
Including cap assemblies, which, which is configured and attached to switch case and is configured to that block assembly will be contacted, is enclosed in switch case
It is internal.
7th embodiment may include the limit switch of sixth embodiment, and wherein cap assemblies include user interface.
8th embodiment may include the limit switch of any embodiment in the first to the 7th embodiment, wherein switching circuit
Including normally opening/normally closed circuit.
9th embodiment may include the limit switch of any embodiment in the first to the 8th embodiment, further include resetting bullet
Spring, the resetting spring are configured to provide the bias towards reset plunger on resetting shaft.
Tenth embodiment may include the limit switch of any embodiment in first embodiment to the 9th embodiment, the limit
Switch further includes contact spring, which is configured to provide the bias towards reset plunger on contact plunger.
11st embodiment may include the limit switch of any embodiment in the first to the tenth embodiment, the limit switch
Further include plunger spring, which is configured to provide the bias towards head assembly in reset plunger.
12nd embodiment may include the limit switch of any embodiment in the first to the 11st embodiment, wherein when with
When family pushes reset button, resetting shaft is removed from the opening in reset plunger, thus allow reset plunger and contact plunger by
It is moved up in bias.
In the 13rd embodiment, a kind of method for operating limit switch may include：Reset plunger is assembled into limit
In the shell of bit switch, between contact block assembly of the head assembly with limit switch of limit switch, wherein reset plunger with connect
The contact plunger of contact block component interacts；Reset assembly is assembled in the inside of head assembly, wherein reset assembly and reset post
Plug interaction；So that the axis of head assembly is rotated and is transported with will pass through the physical contact between axis and object to measure the physics of object
It is dynamic；So that reset plunger is resisted bias due to the rotation of axis and moves down；Since moving down for reset plunger makes contact
Plunger is resisted bias and is moved down；Switching circuit is controlled based on the movement of contact plunger；It is pre- when making reset plunger move down
When quantitative, reset plunger is locked in place via the interaction between reset assembly and reset plunger；By making reset assembly
Reset plunger is moved away to move up to activate reset plunger；Reset plunger is set to move up based on bias；Made based on bias
Contact plunger moves up；And switching circuit is controlled based on the movement of contact plunger.
14th embodiment may include the method for the 13rd embodiment, wherein including making again in place by reset plunger locking
The resetting shaft of hyte part is moved in the opening in reset plunger.
15th embodiment may include the method for the 14th embodiment, wherein reset assembly is made to move away from reset plunger
Including：The top for pushing the reset button for being attached to resetting shaft, makes reset button be centered around between reset button and head assembly
Tie point and rotate, and will be removed in opening of the resetting shaft from reset plunger, wherein resetting shaft is attached to reset button
Bottom.
16th embodiment may include the method for the 15th embodiment, and this method further includes keeping the top of reset button remote
The bias from head assembly.
17th embodiment may include the method for any embodiment in the 13rd to the 16th embodiment, further include being based on
Warning is activated to the control of switching circuit.
In the 18th embodiment, limit switch may include：Head assembly including axis；It is configured and attached to the shell of head assembly
Body；It is configured for mount to the contact block assembly of enclosure interior, which includes contact plunger and switching circuit；Including multiple
The reset assembly of position button, resetting shaft and resetting spring, wherein the reset assembly is arranged via the recessed opening in head assembly
In the inside of head assembly；And it is configured to the reset plunger contacted with axis and contact plunger, wherein being carried out when by limit switch
When measurement, axis is rotated relative to switch case, so that reset plunger is moved down to resist bias, wherein when making reset plunger
When moving down predetermined amount, resetting shaft is made to be manoeuvred into the opening in reset plunger due to the bias on resetting shaft
In, wherein contact plunger is also resisted bias and moved down when reset plunger moves down, wherein contact plunger is configured to base
Switching circuit is controlled in the position of contact block component internal in contact plunger, and wherein will when user pushes reset button
Resetting shaft is removed from the opening in reset plunger, thus discharges reset plunger and contact plunger to due to bias and to moving up
It is dynamic.
19th embodiment may include the limit switch of the 18th embodiment, wherein contact block assembly be configured to based on pair
The control of switching circuit alerts to activate.
20th embodiment may include the limit switch of the 18th or the 19th embodiment, and wherein reset assembly includes structure
Cause the sealing ring sealed using the opening of head assembly.
Although the various embodiments according to principle disclosed herein have been illustrated and described above, without departing substantially from this public affairs
The modification of the various embodiments can be made under the premise of the spirit or teaching opened by those skilled in the art.It is described herein
Embodiment be representative and be not intended to be restrictive.Many modifications, combination and modification are feasible, and be
In the scope of the present disclosure.The feature of each embodiment is combined, merged and/or omitted and is formed by alternate embodiment also at this
In scope of disclosure.Therefore, protection domain is not limited by description set forth above, but is limited by the appended claims
Fixed, which includes all equivalent programs of claimed subject matter.Each claim is as further open and simultaneously
Enter into this specification, and the claim is the embodiment of the present invention.In addition, any of the above described advantages and features may be with
Specific embodiment is related, but the application of the claim authorized in this way should not be confined to realize any or all of above-mentioned advantage or
Person has the process and structure of any or all of features described above.
In addition, division header used herein is in order to consistent with the suggestion at 37 C.F.R. 1.77 or be
It provides organizational cues in other aspects and provides.These titles should not limit or be characterized in can be authorized by the disclosure it is any
The invention stated in claim.Specifically and by way of example, although these titles may relate to " technical field ", power
Sharp claim should not be limited by selected term under this title for describing so-called technical field.In addition, in " background skill
The description of technology should not be construed in art " to recognize that some technology is the prior art for any invention in the disclosure." hair
Bright content " is also not considered as stating the restricted characteristic description of invention in the claims authorized.In addition, at this
In the singular any reference of " invention " is not applied to think to only exist single novel point in the disclosure in open.It is multiple
Invention can state according to the limitation of the omnibus claims authorized by the disclosure, thus this claim limit the present invention and
Thus the equivalent program for the present invention being protected.In all cases, the range of claims should according to the disclosure from
Body advantage and take in, but should not be constrained by title set forth herein.
Broader term（Such as "include", "comprise" and " having "）Use should be understood to as narrower term（Such as
" by ... form ", " substantially by ... form " and " generally by ... form "）It provides and supports.About any of embodiment
The use of the term " optionally " of element, "available", " can with ", " possibility " etc. means that the element is not required, or alternatively
The element is required, both alternative solutions are in the range of embodiment.In addition, the reference to example is used for the purpose of example
The purpose shown and provide, and be not intended to be exclusive.
Although having been provided for several embodiments in the disclosure, but it is to be understood that without departing substantially from the disclosure spirit or
Under the premise of range, disclosed system and method can be embodied as many other concrete forms.The example of the present invention should be seen
It is exemplary rather than restrictive, and the present invention is not intended to be limited to details given herein.For example, can
It by various elements or component combination or is merged into another system, or certain features can be omitted or not implemented.
In addition, under the premise of without departing substantially from the scope of the present disclosure, describe or be shown as in various embodiments separation or
Independent technology, system, subsystem and method can combine or merge with other systems, module, technology or method.It is other to show
Or discuss to be that the object of connection or connection can indirectly couple by some interfaces, device or intermediate member directly to each other
Or connection, it is either electrically still mechanically or other.The other examples of change, replacement and modification can be by this field skill
Art personnel determine, and can be made under the premise of without departing substantially from spirit and scope disclosed herein.
Claims (10)
1. a kind of limit switch（100）, including：
Switch case（102）；
Contact block assembly（106）, it is configured for mount to the switch case（102）Inside, the contact block assembly include connecing
It strikes the post plug（140）And switching circuit（144）；
Head assembly（110）Comprising bar（130）, the head assembly is configured and attached to the switch case（102）；
Reset plunger（122）, it is configured for mount to the switch case（102）Inside, the reset plunger is configured to and institute
State head assembly（110）With the contact plunger（140）Interaction；And
Reset assembly（108）Comprising reset button（112）And resetting shaft（116）, wherein the reset assembly（108）Setting
In the head assembly（110）Inside, and the wherein described resetting shaft（116）It is configured to and the reset plunger（122）Mutually
Effect,
Wherein in the head assembly（110）Internal axis（138）It is configured to work as the bar（130）Relative to the switch case
（102）Make the reset plunger when rotation（122）Bias is resisted to move down,
The wherein described resetting shaft（116）It is configured to work as and makes the reset plunger（122）Due to described when moving down predetermined amount
Resetting shaft（116）On bias and be moved to the reset plunger（122）In grooving（124）In,
The wherein described contact plunger（140）It is configured to work as the reset plunger（122）Bias is resisted when moving down to move down,
And
The wherein described contact plunger（140）It is configured to be based on the contact plunger（140）In the contact block assembly（106）It is internal
Position control the switching circuit（144）.
2. limit switch as described in claim 1（100）, wherein the reset button（112）It is configured about described
Reset button（112）With the head assembly（110）Between tie point and rotate, and the wherein described reset button（112）'s
Top structure at when being pushed by the resetting shaft（116）From the reset plunger（122）The grooving（124）Middle shifting
It removes.
3. limit switch as described in claim 1（100）, wherein the reset button（112）It is included in the head assembly
（110）In opening（120）The tab for the protrusion that top extends（113）.
4. limit switch as described in claim 1（100）, wherein the reset assembly（108）Including being configured to using described
Head assembly（110）Come the sealing ring sealed（118）.
5. limit switch as described in claim 1（100）, wherein the switching circuit（144）Including normally open/it is normal
Closed circuit.
6. limit switch as described in claim 1（100）, further include resetting spring（117）, the resetting spring is configured to carry
For in the resetting shaft（116）On towards the reset plunger（122）Bias.
7. limit switch as described in claim 1（100）, wherein the resetting shaft（116）It is configured to when the promotion reset
Button（112）When from the reset plunger（122）In the grooving（124）It is middle to remove and allow the reset plunger
（122）With the contact plunger（140）Since the bias moves up.
8. a kind of method for operating limit switch, including：
So that the axis of the head assembly of limit switch is rotated and measures object will pass through the physical contact between the axis and the object
The physical motion of body, wherein reset plunger is arranged in the shell of the limit switch, in the head of the limit switch
Between component and the contact block assembly of the limit switch, wherein the contact plunger of the reset plunger and the contact block assembly
Interaction, wherein reset assembly is arranged in the inside of the head assembly, and the wherein described reset assembly and the reset
Plunger interacts；
Make the reset plunger resist bias due to the rotation of the axis to move down；
Make the contact plunger resist bias due to the moving down for reset plunger to move down；
Switching circuit is controlled based on the movement of the contact plunger；
When making the reset plunger move down predetermined amount, via mutual between the reset assembly and the reset plunger
Effect locks the reset plunger in place；
The reset plunger is activated by making the reset assembly move away from the reset plunger to move up；
The reset plunger is set to move up based on the bias；
The contact plunger is set to move up based on the bias；And
The switching circuit is controlled based on the movement of the contact plunger.
9. method as claimed in claim 8, wherein by reset plunger locking in place including making answering for the reset assembly
Position axis is moved in the opening in the reset plunger.
10. method as claimed in claim 9, wherein make the reset assembly move away from the reset plunger to include：It pushes
It is attached to the top of the reset button of the resetting shaft, the reset button is made to be centered around the reset button and the head assembly
Between tie point and rotate, and will be removed in the opening of the resetting shaft from the reset plunger, wherein institute
State the bottom that resetting shaft is attached to the reset button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065757.2A CN108400031B (en) | 2017-02-06 | 2017-02-06 | Reset key of limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065757.2A CN108400031B (en) | 2017-02-06 | 2017-02-06 | Reset key of limit switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108400031A true CN108400031A (en) | 2018-08-14 |
| CN108400031B CN108400031B (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710065757.2A Active CN108400031B (en) | 2017-02-06 | 2017-02-06 | Reset key of limit switch |
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| Country | Link |
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| CN (1) | CN108400031B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3602681A (en) * | 1970-03-02 | 1971-08-31 | Robertshaw Controls Co | Adjustable actuator arm construction |
| GB1391991A (en) * | 1971-04-21 | 1975-04-23 | Telemecanique Electrique | Actuating device for switchgear |
| JPH08111141A (en) * | 1994-10-13 | 1996-04-30 | Omron Corp | Switch |
| CN1396611A (en) * | 2001-07-10 | 2003-02-12 | 欧姆龙株式会社 | Limit switch |
| CN2749041Y (en) * | 2004-11-09 | 2005-12-28 | 天津市第六电器开关厂 | Non auto-reset limit switch with lock bar |
| JP4110757B2 (en) * | 2001-09-07 | 2008-07-02 | オムロン株式会社 | Limit switch head structure |
| CN102723219A (en) * | 2012-06-20 | 2012-10-10 | 科都电气有限公司 | Kick switch with locking mechanism |
| CN104011820A (en) * | 2012-01-13 | 2014-08-27 | 欧姆龙株式会社 | Limit switch |
| CN104425144A (en) * | 2013-08-30 | 2015-03-18 | 西门子公司 | Testing position control assembly of switching device and switching device |
| CN105742102A (en) * | 2014-12-24 | 2016-07-06 | 欧姆龙株式会社 | Limit switch |
-
2017
- 2017-02-06 CN CN201710065757.2A patent/CN108400031B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3602681A (en) * | 1970-03-02 | 1971-08-31 | Robertshaw Controls Co | Adjustable actuator arm construction |
| GB1391991A (en) * | 1971-04-21 | 1975-04-23 | Telemecanique Electrique | Actuating device for switchgear |
| JPH08111141A (en) * | 1994-10-13 | 1996-04-30 | Omron Corp | Switch |
| CN1396611A (en) * | 2001-07-10 | 2003-02-12 | 欧姆龙株式会社 | Limit switch |
| JP4110757B2 (en) * | 2001-09-07 | 2008-07-02 | オムロン株式会社 | Limit switch head structure |
| CN2749041Y (en) * | 2004-11-09 | 2005-12-28 | 天津市第六电器开关厂 | Non auto-reset limit switch with lock bar |
| CN104011820A (en) * | 2012-01-13 | 2014-08-27 | 欧姆龙株式会社 | Limit switch |
| CN102723219A (en) * | 2012-06-20 | 2012-10-10 | 科都电气有限公司 | Kick switch with locking mechanism |
| CN104425144A (en) * | 2013-08-30 | 2015-03-18 | 西门子公司 | Testing position control assembly of switching device and switching device |
| CN105742102A (en) * | 2014-12-24 | 2016-07-06 | 欧姆龙株式会社 | Limit switch |
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| Publication number | Publication date |
|---|---|
| CN108400031B (en) | 2021-12-21 |
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