CN104282477A - Field operation pull-cord switch - Google Patents
Field operation pull-cord switch Download PDFInfo
- Publication number
- CN104282477A CN104282477A CN201410540267.XA CN201410540267A CN104282477A CN 104282477 A CN104282477 A CN 104282477A CN 201410540267 A CN201410540267 A CN 201410540267A CN 104282477 A CN104282477 A CN 104282477A
- Authority
- CN
- China
- Prior art keywords
- arm shaft
- swing arm
- switch
- backstay
- bearing
- 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
-
- 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
On ore deposit during belt conveyor convey materials, often running into emergency needs to stop belt conveyer to avoid danger immediately, reduces and personnel may be caused to injure or the risk of machine breakdown and production accident.So run scene at conveyer to need to arrange operating personnel's walkaround inspection on the way, when finding any contingency or phenomenon, close belt conveyer immediately.Because wild environment is severe, generally all adopt bidirectional pull switch to cut off Belt Conveying electromechanical source, bidirectional pull switch is installed and conveyer both sides, is provided with at belt conveyor the rope connecting bidirectional pull switch on the way.Because belt conveyor is very long, the stay cord of pull switch is also therefore longer, and stay cord deadweight is also heavier, and firmly relatively large during operating personnel's stay cord, these all exist certain impact to the spring in pull switch useful life, even directly cause the damage of spring.
Summary of the invention
The present invention is intended to one of technical problem existed in solution prior art, for this reason, the present invention proposes a kind of field work pull switch, comprise seal casinghousing 1, circuit controling switch 2, described circuit controling switch is arranged in described seal casinghousing, be provided with bearing pedestal 12 in described seal casinghousing, in described bearing pedestal, be provided with bearing 4; Also comprise swing arm 3, arm shaft 5, described swing arm is fixed on described arm shaft, and described arm shaft is arranged on described bearing; Described swing arm is also provided with stay cord 11; Also comprise the trigger equipment 10 triggering described circuit controling switch action, described trigger equipment is fixedly installed on described arm shaft; Also comprise the positioner limiting described trigger equipment range of movement, described arm shaft is also provided with back-moving spring 7.Contactor etc. is sealed in housing by the present invention, improves the internal work environment of pull switch, arm shaft arranges bearing, make switching manipulation reliably light.
Further, also comprise the adjustment grid 6 of adjustment back-moving spring pulling force, described adjustment grid is arranged on the inwall of described seal casinghousing, and 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 comprises two and above fixed-grid.By arranging multiple adjustment grid, adjusting the dynamics of spring easily, making swing arm return reliable, adjust the position of spring thus the elastic force of change spring by grid, reduce spring and change number of times, make pull switch more convenient to use.
Further, described arm shaft is also provided with protruding 9, described back-moving spring one end is arranged in described projection.
Further, described positioner is backstay 1, and described backstay one to be fixedly installed on described seal casinghousing and to be arranged near the line in described circuit controling switch and described arm shaft axle center.
Further, described positioner also comprises the backstay 28 limiting trigger equipment initial position, and described backstay two, described backstay one are 45 ° to 120 ° with line degree of one-tenth angle in described arm shaft axle center respectively.
Accompanying drawing explanation
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; 2, circuit controling switch; 3, swing arm; 4, bearing; 5, arm shaft; 6, grid; 7, spring; 8, backstay two; 9, protruding; 10, trigger equipment; 11, stay cord; 12, bearing pedestal; 13, backstay one.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
As shown in Figure 1 and Figure 2, a kind of field work pull switch of the present invention, comprise seal casinghousing 1, circuit controling switch 2, described circuit controling switch is arranged in described seal casinghousing, be provided with bearing pedestal 12 in described seal casinghousing, in described bearing pedestal, be provided with bearing 4; Also comprise swing arm 3, arm shaft 5, described swing arm is fixed on described arm shaft, and described arm shaft is arranged on described bearing; Described swing arm is also provided with stay cord 11; Also comprise the trigger equipment 10 triggering described circuit controling switch action, described trigger equipment is fixedly installed on described arm shaft; Also comprise the positioner limiting described trigger equipment range of movement, described arm shaft is also provided with back-moving spring 7.Torsion spring shown in can adopting as shown in Figure 1, Figure 2 for back-moving spring, also can adopt the extension spring as shown in Fig. 3 Fig. 4.Also comprise the adjustment grid 6 of adjustment back-moving spring pulling force, described spring force adjustment grid comprises two and above fixed-grid, and grid is 5 in the present embodiment.Described adjustment grid is arranged on the inwall of described seal casinghousing, and described back-moving spring one end is fixed on arm shaft, and the other end is fixed on described adjustment grid.Described arm shaft is also provided with protruding 9, and described back-moving spring one end is arranged in described projection.Described positioner is backstay 1, and described backstay one to be fixedly installed on described seal casinghousing and to be arranged near the line in described circuit controling switch and described arm shaft axle center.Described positioner also comprises the backstay 28 limiting trigger equipment initial position, and described backstay two, described backstay one are 45 ° to 120 ° with line degree of one-tenth angle in described arm shaft axle center respectively.In the present embodiment, circuit controling switch is proximity switch (circuit controling switch also can be travel switch etc. in other embodiments certainly), when trigger equipment moves to proximity switch, the position of proximity switch perception trigger equipment thus send signal and connect main circuit.Backstay two limits the initial position of trigger equipment, and backstay one limits the extreme position of trigger equipment, and under spring force, positioner ensure that the accurate return of trigger equipment, makes pull switch action accurately and reliably.
Stay cord pulls swing arm, arm shaft rotates along with swing arm, the motion of band driven triggering device, when trigger equipment moves to the initial position being limited trigger equipment by backstay two, when limiting the circuit controling switch position of trigger equipment with backstay one, the position of circuit controling switch perception trigger equipment, then circuit is connected, by arranging multiple adjustment grid, adjust the dynamics of spring easily, make swing arm return reliable, adjust the position of spring thus the elastic force of change spring by grid, reduce spring and change number of times, make pull switch more convenient to use.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (6)
1. a field work pull switch, it is characterized in that, comprise seal casinghousing (1), circuit controling switch (2), described circuit controling switch is arranged in described seal casinghousing, be provided with bearing pedestal (12) in described seal casinghousing, in described bearing pedestal, be provided with bearing (4); Also comprise swing arm (3), arm shaft (5), described swing arm is fixed on described arm shaft, and described arm shaft is arranged on described bearing; Described swing arm is also provided with stay cord (11); Also comprise the trigger equipment (10) triggering described circuit controling switch action, described trigger equipment is fixedly installed on described arm shaft; Also comprise the positioner limiting described trigger equipment range of movement, described arm shaft is also provided with back-moving spring (7).
2. according to the field work pull switch described in claim 1, it is characterized in that, also comprise the adjustment grid (6) of adjustment back-moving spring pulling force, described adjustment grid is arranged on the inwall of described seal casinghousing, described back-moving spring one end is fixed on arm shaft, and the other end is fixed on described adjustment grid.
3. field work pull switch according to claim 2, is characterized in that, described spring force adjustment grid comprises two and above fixed-grid.
4. according to the field work pull switch described in claim 1, it is characterized in that, described arm shaft is also provided with projection (9), described back-moving spring one end is arranged in described projection.
5. field work pull switch according to claim 1, it is characterized in that, described positioner is backstay one (13), and described backstay one to be fixedly installed on described seal casinghousing and to be arranged near the line in described circuit controling switch and described arm shaft axle center.
6. field work pull switch according to claim 4, it is characterized in that, described positioner also comprises the backstay two (8) limiting trigger equipment initial position, and described backstay two, described backstay one are 45 ° to 120 ° with line degree of one-tenth angle in described arm shaft axle center respectively.
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 true CN104282477A (en) | 2015-01-14 |
| CN104282477B 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) |
Cited By (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 |
| CN111799108A (en) * | 2019-04-05 | 2020-10-20 | K.A.施莫沙尔控股两合公司 | Safety switch with a cable-operated quick-release device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0930630A1 (en) * | 1998-01-19 | 1999-07-21 | Ascom Tateco B.V. | A pull cord and an element for a pull cord. |
| 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0930630A1 (en) * | 1998-01-19 | 1999-07-21 | Ascom Tateco B.V. | A pull cord and an element for a pull cord. |
| 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 |
Cited By (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 |
| CN111799108A (en) * | 2019-04-05 | 2020-10-20 | K.A.施莫沙尔控股两合公司 | Safety switch with a cable-operated quick-release device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104282477B (en) | 2017-02-15 |
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| C14 | Grant of patent or utility model | ||
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