CN209418388U - Pull switch - Google Patents
Pull switch Download PDFInfo
- Publication number
- CN209418388U CN209418388U CN201822244721.3U CN201822244721U CN209418388U CN 209418388 U CN209418388 U CN 209418388U CN 201822244721 U CN201822244721 U CN 201822244721U CN 209418388 U CN209418388 U CN 209418388U
- Authority
- CN
- China
- Prior art keywords
- slot
- microswitch
- guiding
- key
- drawstring
- 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.)
- Expired - Fee Related
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Abstract
A kind of pull switch, it include: switch base box, switching device and driving mechanism, switch base box includes bottom cover and top cover, and the upper slot of guiding is offered on bottom cover and two are stored upper slot, it stores upper slot for two to be located on the opposite two sides for being oriented to upper slot, top cover is for covering at bottom cover.Switching device includes normally opened microswitch and normally closed microswitch, and normally opened microswitch and normally closed microswitch are accommodated in two respectively and store in upper slot, and normally opened microswitch and normally closed microswitch all have key.The pull switch of the utility model, it is by switch base box, switching device and the driving mechanism of setting, switching device, driving mechanism and switch base box is integrated, so as to directly convert the output quantity of driving mechanism to the actuating quantity of switching device.And by adjusting driving mechanism, different driving forces is adjusted, so as to be adapted to the driving part of different shield doors, so that installation site is more flexible.
Description
Technical field
The utility model relates to a kind of switching technique fields, more particularly to a kind of pull switch.
Background technique
Currently, subway shield door is the subjects such as item collection building, machinery, material, electronics and information in the high-tech of one
Product is used in subway platform.Shield door separates platform and train operation region, controls it by control system and opens automatically
It opens.
Traditional pull switch is mainly used in the detection in place of subway shield door.For the driving part of on-off action,
Commonly used in the connection of drawstring, and certain drawstring displacement is generated, drawstring displacement variable is output to detection part, this will
Seek the displacement variable that drawstring can be converted and handled for detection part.Therefore, the drive form for how improving switch makes to examine
The variation of drawstring displacement can be converted and handle by surveying component, make switch that can be operating normally, and be that those skilled in the art need to solve
Problem.
Utility model content
The purpose of the utility model is to overcome shortcomings in the prior art, and different drivings can be adjusted by providing one kind
Power can be adapted to the driving part of different shield doors, so that installation site is more flexible, and can be directly by driving mechanism
Output quantity is converted into the pull switch of the actuating quantity of switching device.
The purpose of this utility model is achieved through the following technical solutions:
A kind of pull switch, comprising:
Switch base box, the switch base box include bottom cover and top cover, and the upper slot of guiding and two receipts are offered on the bottom cover
Receive slot, slot is located in the guiding on the opposite two sides of slot in two storages, and the top cover is for being provide with
In on the bottom cover；
Switching device, the switching device include normally opened microswitch and normally closed microswitch, the normally opened microswitch
And the normally closed microswitch is accommodated in respectively in two storages in slot, the normally opened microswitch and the normally closed fine motion
It switchs and all has key, the key of the key of the normally opened microswitch and the normally closed microswitch is respectively facing leads in described
Upward slot setting, and the extension side of the key of the extending direction of the key of the normally opened microswitch and the normally closed microswitch
To in same horizontal line；And
Driving mechanism, the driving mechanism include drawstring actuator, return springs and stroke slider, the stroke slider
And the return springs are all set in the guiding in slot, and slot in the first end of the return springs and the guiding
Inner sidewall connection, the second end of the return springs connect with the stroke slider, and the two sides of the stroke slider are divided
Key not with the key of the normally opened microswitch and the normally closed microswitch supports, and the drawstring actuator is for driving
The stroke slider is slided in slot in the guiding, and the stroke slider is in the guiding in slot when sliding, the row
Journey sliding block is for compressing the return springs.
The normally closed microswitch is provided with the first COM pin and NC pin in one of the embodiments,.
The normally opened microswitch is provided with the 2nd COM pin and NO pin in one of the embodiments,.
The return springs are reset spring in one of the embodiments,.
The first chamfering inclined-plane and the second chamfering inclined-plane, institute are offered in the stroke slider in one of the embodiments,
The first chamfering inclined-plane and second chamfering inclined-plane is stated to be located on the opposite two sides of the stroke slider.
First chamfering inclined-plane and the key of the normally opened microswitch support in one of the embodiments, described
The key on the second chamfering inclined-plane and the normally closed microswitch supports.
The drawstring actuator includes the first drawstring, the second drawstring and link block, the company in one of the embodiments,
It connects block to be set in the guiding in slot, the link block is connect with the stroke slider, first drawstring and the connection
The first end of block connects, and second drawstring wears the stroke slider, and the second of second drawstring and the link block
End connection.
The lower slot of guiding is offered on the top cover in one of the embodiments, when the dome is set to the bottom cover
For being connected to slot with slot under the guiding.
It is opened up on the top cover in one of the embodiments, there are two lower slot is stored, the dome is set to the bottom
For being connected to slot one-to-one correspondence under two storages with slot in two storages when lid.
Slot all has semicircular cross section, institute under slot and the guiding in the guiding in one of the embodiments,
It states and is oriented to the overall structure after upper slot is connected to slot under the guiding with circular cross section.
Compared with prior art, the utility model at least has the following advantages:
The pull switch of the utility model, by switch base box, switching device and the driving mechanism of setting, by derailing switch
Part, driving mechanism and switch base box are integrated, so as to directly convert switching device for the output quantity of driving mechanism
Actuating quantity.And by adjusting driving mechanism, different driving forces is adjusted, so as to be adapted to the driving portion of different shield doors
Part, so that installation site is more flexible.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the pull switch of an embodiment of the present invention；
Fig. 2 is the partial enlargement diagram at A shown in FIG. 1 for stretching switch
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making practical new to this
The disclosure of type understands more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
As shown in Figure 1, a kind of pull switch 10, comprising: switch base box 100, switching device 200 and driving mechanism 300 are opened
It closes device 200 and driving mechanism 300 is respectively arranged on switch base box 100.
It should be noted that switching device 200, driving mechanism 300 and switch base box 100 is integrated, so as to
Directly convert the output quantity of driving mechanism 300 to the actuating quantity of switching device 200.And it by adjusting driving mechanism 300, adjusts
Whole different driving force, so as to be adapted to different detection parts, so that installation site is more flexible.
Refering to Figure 1, switch base box 100 includes bottom cover 110 and top cover 120, the upper slot of guiding is offered on bottom cover 110
111 and two store upper slot 112, store upper slot 112 for two and be located on the opposite two sides for being oriented to upper slot 111, top cover
120 for covering at bottom cover 110.
Refering to Figure 1, in the present embodiment, the lower slot 121 of guiding is offered on top cover 120, top cover 120 covers at bottom
It is used to make to be oriented to slot 111 when lid 110 to be connected to lower slot 121 is oriented to.Lower slot 122, top cover are stored there are two opening up on top cover 120
120 are connected to for making two to store the lower one-to-one correspondence of slot 122 with the upper slot 112 of two storages when covering at bottom cover 110.Slot in guiding
111 all have semicircular cross section with lower slot 121 is oriented to, the overall structure after slot 111 is connected to the lower slot 121 of guiding in guiding
With circular cross section.
It should be noted that top cover 120 is located on bottom cover 110, then it is being screwed, so that top cover 120
With 110 phase of bottom cover is fixed forms an entirety, and to the switching device 200 and driving mechanism 300 being mounted on bottom cover 110 into
Row sealing and protection.
As shown in Figs.1 and 2, switching device 200 includes normally opened microswitch 210 and normally closed microswitch 220, often
It opens microswitch 210 and normally closed microswitch 220 is accommodated in two respectively and stores in upper slot 112, normally opened microswitch 210 and often
It closes microswitch 220 and all has key, the key of normally opened microswitch 210 and the key of normally closed microswitch 220 are respectively facing
It is arranged in being oriented to upper slot 111, and the key of the extending direction of the key of normally opened microswitch 210 and normally closed microswitch 220
Extending direction is located in same horizontal line.
Refering to Figure 1, in the present embodiment, normally closed microswitch 220 is provided with the first COM pin 221 and NC draws
Foot 222；Normally opened microswitch 210 is provided with the 2nd COM pin 211 and NO pin 212.
As shown in Figs.1 and 2, driving mechanism 300 includes that drawstring actuator 310, return springs 320 and stroke are sliding
Block 330, stroke slider 330 and return springs 320 are all set in the upper slot 111 of guiding, and the first end of return springs 320
It is connect with the inner sidewall for being oriented to upper slot 111, the second end of return springs 320 is connect with stroke slider 330, stroke slider 330
Key of the two sides respectively with the key of normally opened microswitch 210 and normally closed microswitch 220 support, drawstring actuator 310
For driving stroke slider 330 to slide being oriented in upper slot 111, and stroke slider 330 be oriented to slided in upper slot 111 when, row
Journey sliding block 330 is for compressing return springs 320.
It should be noted that driving stroke slider 330 mobile by traction drawstring actuator 310, and stroke slider 330
In the process of moving, return springs 320 can be compressed, it is after certain displacement is moved into stroke slider 330, i.e., normally opened
The key of the key of microswitch 210 and normally closed microswitch 220 loses with stroke slider 330 support respectively, so that often
It opens microswitch 210 and normally closed microswitch 220 issues action signal respectively.After the power for losing drawstring actuator 310, row
Journey sliding block 330 restores under the action of return springs 320 to original position, and stroke slider 330 is in the process of recovery
In, stroke slider 330 squeezes the key of normally opened microswitch 210 and the key of normally closed microswitch 220, realizes to normally opened fine motion
The key of the key of switch 210 and normally closed microswitch 220 supports.
As shown in Figs.1 and 2, in the present embodiment, return springs 320 are reset spring；In stroke slider 330
The first chamfering inclined-plane 331 and the second chamfering inclined-plane 332 are offered, position is distinguished on the first chamfering inclined-plane 331 and the second chamfering inclined-plane 332
In on the opposite two sides of stroke slider 330；The key on the first chamfering inclined-plane 331 and normally opened microswitch 210 supports, and second
Chamfering inclined-plane 332 and the key of normally closed microswitch 220 support；Drawstring actuator 310 includes the first drawstring 311, the second drawstring
312 and link block 313, link block 313 is set in the upper slot 111 of guiding, and link block 313 is connect with stroke slider 330, the first drawing
Rope 311 is connect with the first end of link block 313, and the second drawstring 312 wears stroke slider 330, and the second drawstring 312 and link block
313 second end connection.
It should be noted that the second drawstring 312 is mounted on external driving part, for applying to the second drawstring 312
One tractive force.When external driving part draws the second drawstring 312, link block 313d drives stroke slider 330 being oriented to
Sliding in upper slot 111, meanwhile, the first drawstring 311 is mobile with link block 313d, and stroke slider 330 is being oriented to upper slot 111
During interior sliding, as stroke slider 330 compresses return springs 320, certain displacement is generated in stroke slider 330
Afterwards, the key of the key of normally opened microswitch 210 and normally closed microswitch 220 is detached from stroke slider 330 respectively, so that
Normally opened microswitch 210 and normally closed microswitch 220 issue action signal respectively.
Explanation is needed further exist for, when the second drawstring 312 loses the traction of external driving part, return springs
320 restore to initial position, and stroke slider 330 is driven to slide in the upper slot 111 of guiding, the first of stroke slider 330
Chamfering inclined-plane 331 and the second chamfering inclined-plane 332 are pressed with the key of normally opened microswitch 210 and normally closed microswitch 220 respectively
When key supports, as stroke slider 330 is on the sliding being oriented in upper slot 111, the first chamfering inclined-plane 331 and the second chamfering inclined-plane
332 press the key of the key of normally opened microswitch 210 and normally closed microswitch 220 respectively, restore in stroke slider 330 to first
After beginning state, the key of normally opened microswitch 210 and the key of normally closed microswitch 220 and stroke slider 330 keep initial shape
State, in this way, to complete the action process of one-off drawing switch 10.By the switch base box 100 of setting, switching device 200 and
Driving mechanism 300, switching device 200, driving mechanism 300 and switch base box 100 is integrated, so as to will directly drive
The output quantity of mechanism 300 is converted into the actuating quantity of switching device 200.In addition, the driving part of different shield doors corresponds to difference
Tractive force, in order to enable the tractive force of the driving part of different shield door is corresponding with the driving force of driving mechanism 300, because
This adjusts different driving forces, by adjusting the intensity of the second drawstring 312 and return springs so as to be adapted to different screens
The driving part of door is covered, so that installation site is more flexible.
Compared with prior art, the utility model at least has the following advantages:
The pull switch of the utility model, by switch base box, switching device and the driving mechanism of setting, by derailing switch
Part, driving mechanism and switch base box are integrated, so as to directly convert switching device for the output quantity of driving mechanism
Actuating quantity.And by adjusting driving mechanism, different driving forces is adjusted, so as to be adapted to different driving parts, so that
Installation site is more flexible.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of pull switch characterized by comprising
Switch base box, the switch base box include bottom cover and top cover, are offered in the upper slot of guiding and two storages on the bottom cover
Slot, slot is located in the guiding on the opposite two sides of slot in two storages, and the top cover is for covering at institute
It states on bottom cover；
Switching device, the switching device include normally opened microswitch and normally closed microswitch, the normally opened microswitch and institute
It states normally closed microswitch to be accommodated in respectively in two storages in slot, the normally opened microswitch and the normally closed microswitch
All have key, the key of the key of the normally opened microswitch and the normally closed microswitch is respectively facing in the guiding
Slot setting, and the extending direction position of the key of the extending direction of the key of the normally opened microswitch and the normally closed microswitch
In in same horizontal line；And
Driving mechanism, the driving mechanism include drawstring actuator, return springs and stroke slider, the stroke slider and institute
Return springs are stated to be all set in the guiding in slot, and the first end of the return springs in the guiding slot it is interior
Side wall connection, the second end of the return springs connect with the stroke slider, the two sides of the stroke slider respectively with
The key of the key of the normally opened microswitch and the normally closed microswitch supports, and the drawstring actuator is described for driving
Stroke slider is slided in slot in the guiding, and the stroke slider, when sliding in slot in the guiding, the stroke is sliding
Block is for compressing the return springs.
2. pull switch according to claim 1, which is characterized in that the normally closed microswitch is provided with the first COM and draws
Foot and NC pin.
3. pull switch according to claim 2, which is characterized in that the normally opened microswitch is provided with the 2nd COM and draws
Foot and NO pin.
4. pull switch according to claim 1, which is characterized in that the return springs are reset spring.
5. pull switch according to claim 1, which is characterized in that offer the first chamfering inclined-plane in the stroke slider
And the second chamfering inclined-plane, first chamfering inclined-plane and second chamfering inclined-plane are located at the opposite of the stroke slider
On two sides.
6. pull switch according to claim 5, which is characterized in that opened with the normally opened fine motion on first chamfering inclined-plane
The key of pass supports, and second chamfering inclined-plane and the key of the normally closed microswitch support.
7. pull switch according to claim 1, which is characterized in that the drawstring actuator includes the first drawstring, second
Drawstring and link block, the link block are set in the guiding in slot, and the link block is connect with the stroke slider, described
First drawstring is connect with the first end of the link block, and second drawstring wears the stroke slider, and second drawstring
It is connect with the second end of the link block.
8. pull switch according to claim 1, which is characterized in that offer the lower slot of guiding, the top on the top cover
For being connected to slot in the guiding with slot under the guiding when housing is set to the bottom cover.
9. pull switch according to claim 1, which is characterized in that store lower slot, institute there are two opening up on the top cover
For being connected to slot one-to-one correspondence under two storages with slot in two storages when stating dome set on the bottom cover.
10. pull switch according to claim 8, which is characterized in that slot has with slot under the guiding in the guiding
There is semicircular cross section, the overall structure after slot is connected to slot under the guiding in the guiding has circular cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244721.3U CN209418388U (en) | 2018-12-28 | 2018-12-28 | Pull switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244721.3U CN209418388U (en) | 2018-12-28 | 2018-12-28 | Pull switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209418388U true CN209418388U (en) | 2019-09-20 |
Family
ID=67941626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822244721.3U Expired - Fee Related CN209418388U (en) | 2018-12-28 | 2018-12-28 | Pull switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209418388U (en) |
-
2018
- 2018-12-28 CN CN201822244721.3U patent/CN209418388U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190920 Termination date: 20211228 |