CN104282477B - Field operation pull-cord switch - Google Patents
Field operation pull-cord switch Download PDFInfo
- Publication number
- CN104282477B CN104282477B CN201410540267.XA CN201410540267A CN104282477B CN 104282477 B CN104282477 B CN 104282477B CN 201410540267 A CN201410540267 A CN 201410540267A CN 104282477 B CN104282477 B CN 104282477B
- Authority
- CN
- China
- Prior art keywords
- arm shaft
- swing arm
- switch
- locating rod
- triggering device
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H17/00—Switches having flexible operating part adapted only for pulling, e.g. cord, chain
- H01H17/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H17/00—Switches having flexible operating part adapted only for pulling, e.g. cord, chain
- H01H17/26—Switches having flexible operating part adapted only for pulling, e.g. cord, chain having two flexible operating parts; having a single operating part adapted for pulling at both ends
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a field operation pull-cord switch which comprises a sealing shell and a circuit control switch. The circuit control switch is arranged inside the sealing shell. A bearing pedestal is arranged inside the sealing shell. A bearing is arranged inside the bearing pedestal. The field operation pull-cord switch further comprises a swing arm and a swing arm shaft. The swing arm is fixed to the swing arm shaft. The swing arm shaft is installed on the bearing. A pull cord is further arranged on the swing arm. The field operation pull-cord switch further comprises a triggering device triggering the circuit control switch to act. The triggering device is fixedly arranged on the swing arm shaft. The field operation pull-cord switch further comprises a positioning device limiting the motion range of the triggering device. A reset spring 7 is further arranged on the swing arm shaft. The circuit switch and the other components are sealed inside the shell, the internal working environment of the pull-cord switch is improved, and the bearing is arranged on the swing arm shaft, so that the field operation pull-cord switch is conveniently and reliably operated.
Description
Technical field
The present invention relates to a kind of pull switch of field work.
Background technology
In ore deposit upper belt conveyer conveying material, being frequently encountered by emergency needs to stop belt conveyer immediately to keep away
Exempt from danger, reduce the risk that may lead to personnel's injury or machine breakdown and production accident.So run existing in conveyer
Field needs to arrange for operating personnel's walkaround inspection on the way, when finding any contingency or phenomenon, closes belt conveyer immediately.
Because wild environment is severe, generally individually adopt bidirectional pull switch to cut off Belt Conveying electromechanical source, bidirectional pull switch install with
Conveyer both sides, in the rope being provided with connection bidirectional pull switch on the way of belt conveyor.Due to belt conveyor very
Long, the drawstring of pull switch is also therefore longer, and drawstring deadweight is also heavier, and firmly relatively large during operating personnel's drawstring, these are all
There is certain impact, or even the damage directly resulting in spring to the spring service life in pull switch.
Content of the invention
Present invention seek to address that one of technical problem present in prior art, for this reason, the present invention proposes a kind of field make
Industry pull switch, including seal casinghousing 1, circuit controling switch 2, described circuit controling switch is arranged in described seal casinghousing,
It is provided with bearing block 12 in described seal casinghousing, in described bearing block, be provided with bearing 4；Also include swing arm 3, arm shaft 5, described
Swing arm is fixed on described arm shaft, and described arm shaft is arranged on described bearing；Drawstring 11 is additionally provided with described swing arm；Also
Including the triggering device 10 triggering described circuit controling switch action, described triggering device is fixedly installed on described arm shaft；
Also include limiting the positioner of described triggering device range of movement, described arm shaft is additionally provided with back-moving spring 7.The present invention
Contactor etc. is sealed in housing, improves the internal work environment of pull switch, arm shaft arranges bearing, makes out
Close and operate light reliability.
Further, also include adjusting the adjustment grid 6 of back-moving spring pulling force, described adjustment grid is arranged on described sealing
On the inwall of housing, described back-moving spring one end is fixed on arm shaft, and the other end is fixed on described adjustment grid.
Further, described spring force adjustment grid includes two and above fixed-grid.By arranging multiple tune
Whole grid, easily adjusts the dynamics of spring, makes swing arm return reliable, adjusts the position of spring thus changing spring by grid
Elastic force, reduce spring change number of times so that pull switch is more convenient to use.
Further, described arm shaft is additionally provided with raised 9, described back-moving spring one end is arranged in described projection.
Further, described positioner is locating rod 1, and described locating rod one is fixedly installed on described seal casinghousing
Go up and be arranged near described circuit controling switch and the line in described arm shaft axle center.
Further, described positioner also includes limiting the locating rod 28 of triggering device initial position, described locating rod
2nd, described locating rod one is 45 ° to 120 ° with line the become degree angle in described arm shaft axle center respectively.
Brief description
Fig. 1 is the schematic diagram of the embodiment of the present invention one.
Fig. 2 be in the embodiment of the present invention one A-A to schematic diagram.
Fig. 3 is the schematic diagram of another embodiment of the present invention.
Fig. 4 be in another embodiment of the present invention A-A to schematic diagram.
Wherein, 1, seal casinghousing；2nd, circuit controling switch；3rd, swing arm；4th, bearing；5th, arm shaft；6th, grid；7th, spring；
8th, locating rod two；9th, raised；10th, triggering device；11st, drawstring；12nd, bearing block；13rd, locating rod one.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；It can be machine
Tool connects or electrically connects；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part.For the ordinary skill in the art, above-mentioned term can be understood as the case may be at this
Concrete meaning in bright.
As shown in Figure 1 and Figure 2, a kind of field work of present invention pull switch, including seal casinghousing 1, circuit controling switch 2,
Described circuit controling switch is arranged in described seal casinghousing, is provided with bearing block 12, described bearing block in described seal casinghousing
Inside it is provided with bearing 4；Also include swing arm 3, arm shaft 5, described swing arm is fixed on described arm shaft, and described arm shaft is arranged on
On described bearing；Drawstring 11 is additionally provided with described swing arm；Also include triggering the triggering device of described circuit controling switch action
10, described triggering device is fixedly installed on described arm shaft；Also include the positioning dress limiting described triggering device range of movement
Put, described arm shaft is additionally provided with back-moving spring 7.For back-moving spring can using the torsion spring shown in as shown in Figure 1, Figure 2,
Can be using the extension spring as shown in Fig. 3 Fig. 4.Also include adjusting the adjustment grid 6 of back-moving spring pulling force, described spring force adjustment
Grid includes two and above fixed-grid, and grid is 5 in the present embodiment.Described adjustment grid is arranged on described sealing
On the inwall of housing, described back-moving spring one end is fixed on arm shaft, and the other end is fixed on described adjustment grid.Described
It is additionally provided with raised 9, described back-moving spring one end is arranged in described projection on arm shaft.Described positioner is locating rod one
13, described locating rod one is fixedly installed on described seal casinghousing and is arranged on described circuit controling switch and described arm shaft axle
Near the line of the heart.Described positioner also include limit triggering device initial position locating rod 28, described locating rod two,
Described locating rod one is 45 ° to 120 ° with line the become degree angle in described arm shaft axle center respectively.In the present embodiment, circuit controls
Switch as proximity switch（Certainly circuit controling switch can also be travel switch etc. in other embodiments）, when triggering device fortune
When moving proximity switch, main circuit is connected thus sending signal in the position that proximity switch perceives triggering device.Locating rod two limits
The initial position of triggering device, locating rod one limits the extreme position of triggering device, and under spring force, positioner is protected
Demonstrate,prove the accurate return of triggering device, made pull switch action accurately and reliably.
Drawstring pulls swing arm, and arm shaft rotates with swing arm, band driven triggering device motion, passes through when triggering device moves to
Locating rod two limit triggering device initial position, with locating rod one limit triggering device circuit controling switch position when, electricity
Way control switch perceives the position of triggering device, is then turn on circuit, by arranging multiple adjustment grids, easily adjusts spring
Dynamics, make swing arm return reliable, the position of spring adjusted thus changing the elastic force of spring by grid, reduce spring and change time
Number is so that pull switch is more convenient to use.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art is in the principle without departing from the present invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (5)
1. it is characterised in that including seal casinghousing, circuit controling switch, described circuit controls a kind of field work pull switch
Switch is arranged in described seal casinghousing, is provided with bearing block, is provided with bearing in described bearing block in described seal casinghousing；Also
Including swing arm, arm shaft, described swing arm is fixed on described arm shaft, and described arm shaft is arranged on described bearing；Described pendulum
Drawstring is additionally provided with arm；Also include triggering the triggering device of described circuit controling switch action, described triggering device fixation sets
Put on described arm shaft；Also include limiting the positioner of described triggering device range of movement, described arm shaft also sets up
There is back-moving spring；Described positioner is locating rod one, and described locating rod one is fixedly installed on described seal casinghousing and arranges
Near the line in described circuit controling switch and described arm shaft axle center.
2. field work pull switch according to claim 1 is it is characterised in that described positioner also includes limiting touching
The locating rod two of transmitting apparatus initial position, described locating rod two, described locating rod one line with described arm shaft axle center respectively
Angulation is 45 ° to 120 °.
3. field work pull switch according to claim 1 and 2 draws it is characterised in that also including adjustment back-moving spring
The adjustment grid of power, described adjustment grid is arranged on the inwall of described seal casinghousing, and described back-moving spring one end is fixed on pendulum
On arm axle, the other end is fixed on described adjustment grid.
4. field work pull switch according to claim 3 it is characterised in that described adjustment grid include two and with
On fixed-grid.
5. field work pull switch according to claim 1 and 2 is it is characterised in that be additionally provided with described arm shaft
Projection, described back-moving spring one end is arranged in described projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410540267.XA CN104282477B (en) | 2014-10-14 | 2014-10-14 | Field operation pull-cord switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410540267.XA CN104282477B (en) | 2014-10-14 | 2014-10-14 | Field operation pull-cord switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104282477A CN104282477A (en) | 2015-01-14 |
| CN104282477B true CN104282477B (en) | 2017-02-15 |
Family
ID=52257275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410540267.XA Active CN104282477B (en) | 2014-10-14 | 2014-10-14 | Field operation pull-cord switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104282477B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543333A (en) * | 2018-04-28 | 2018-09-18 | 安徽省通源环保科技有限公司 | Filter press switchs |
| DE102019002492B4 (en) * | 2019-04-05 | 2021-08-19 | K.A. Schmersal Holding Gmbh & Co. Kg | Safety switch with rope-operated quick shutdown |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1008058C2 (en) * | 1998-01-19 | 1999-07-20 | Ascom Tateco Ab | Drawstring and drawstring element. |
| CN202749282U (en) * | 2012-08-28 | 2013-02-20 | 杭州辰德科技有限公司 | Pull cord switch provided with hand-operated self-locking structure |
| CN203760352U (en) * | 2014-03-19 | 2014-08-06 | 佛山市先达威机械有限公司 | Sudden stop switch for gang drill stay rope |
| CN204088143U (en) * | 2014-10-14 | 2015-01-07 | 武汉菲舍控制技术有限公司 | A kind of field work pull switch |
-
2014
- 2014-10-14 CN CN201410540267.XA patent/CN104282477B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104282477A (en) | 2015-01-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |