CN112614719B - Microswitch triggering mechanism - Google Patents

Microswitch triggering mechanism Download PDF

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Publication number
CN112614719B
CN112614719B CN202011469178.2A CN202011469178A CN112614719B CN 112614719 B CN112614719 B CN 112614719B CN 202011469178 A CN202011469178 A CN 202011469178A CN 112614719 B CN112614719 B CN 112614719B
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China
Prior art keywords
trigger
shaft
microswitch
component
seat
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CN202011469178.2A
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CN112614719A (en
Inventor
周明
崔致和
王雪松
杨雷
徐敏
柳明明
武雯
孙晋川
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Lanzhou Institute of Physics of Chinese Academy of Space Technology
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Lanzhou Institute of Physics of Chinese Academy of Space Technology
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/20—Driving mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/064—Limitation of actuating pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/01—Spiral spring

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  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)

Abstract

The invention discloses a microswitch triggering mechanism, which belongs to the field of structures and mechanisms, and particularly relates to an indirect triggering mechanism of a microswitch in an unfolded in-place state, which comprises a unfolded component, a triggering shaft, a compression spring, a triggering seat, a microswitch component and a bracket, wherein the cantilever is provided with a first end and a second end; the trigger mechanism has a simple structure, is small in size, skillfully utilizes the compression spring at the initial position, effectively reduces the positive impact force in the trigger process of the microswitch, improves the stability and reliability of the trigger of the microswitch, prolongs the service life of the trigger, eliminates the influence of errors generated by part processing on the trigger of the microswitch, and reduces the part processing difficulty.

Description

Microswitch triggering mechanism
Technical Field
The invention belongs to the technical field of structures and mechanisms, and particularly relates to a microswitch triggering mechanism.
Background
With the rapid development of the spacecraft technology, the spacecraft has complex construction date and continuously-increased functions, various mechanisms are required to complete various tasks, the mechanisms become indispensable important components of modern spacecraft, and meanwhile, the motion state of the mechanisms needs to be judged, so that the signal feedback mechanism is required to have the characteristics of high reliability and long service life. The development of the method can improve the reliability of signal acquisition, realize the complex and high-precision motion signal acquisition function and have wide application prospect.
Disclosure of Invention
In view of this, the present invention provides a microswitch triggering mechanism, which can effectively reduce the positive impact force in the microswitch triggering process, and improve the stability, reliability and service life of the switch triggering.
The technical scheme for realizing the invention is as follows:
a microswitch triggering mechanism comprises a stretched component, a triggering shaft, a compression spring, a triggering seat, a microswitch component and a bracket;
the trigger shaft is of a three-section shaft structure, the top of the trigger shaft is a spherical surface, and the diameter of the middle shaft is larger than the diameters of the shafts at the two ends and larger than the outer diameter of the compression spring. The lower section special-shaped structure of the trigger shaft is characterized in that a small plane is milled on one side of the shaft, a 10-degree conical section is arranged at the tail end of the shaft, the whole length of the conical section is longer than that of the trigger seat, and the trigger shaft is integrally plated with MoS 2 And the friction force between the contact parts is reduced.
The position of the stretched component corresponding to the top of the spherical surface of the triggering shaft is of a 1/4 large circular arc structure, and the center of the spherical surface of the triggering shaft is coincided with the center of the stretched component. The deployed assembly is in a compressed state, and the spherical surface on the upper part of the trigger shaft is in contact with the circular arc surface of the deployed assembly through the acting force provided by the compression spring.
The inner diameter of the compression spring is larger than the diameter of the shaft end of the lower part of the trigger shaft, and the outer diameter of the compression spring is smaller than the aperture of the trigger seat.
The trigger seat is of an arch structure, a stepped hole is formed in the middle of the trigger seat, and the diameter of the upper portion of the trigger seat is larger than that of the middle shaft of the trigger shaft. The aperture of the lower part of the trigger seat is slightly larger than the lower section of the trigger shaft, and the lower structure of the step hole of the trigger seat is matched with the lower structure of the trigger shaft. The trigger seat is connected to the corresponding position of the bracket through a screw. The compression spring is arranged in the trigger seat step hole, the trigger shaft penetrates through the compression spring and is arranged in the trigger seat step hole, and the lower end plane of the trigger shaft is correspondingly installed with the trigger seat step hole plane.
The microswitch assembly mainly comprises a microswitch and an elastic sheet, is installed at a corresponding position of the bracket through a screw and a nut, and is adjusted in installation position through a reserved waist-shaped hole, so that the microswitch assembly is in contact with a 10-degree conical end transition position of the trigger shaft.
The bracket is reserved with mounting hole positions corresponding to the unfolded component, the trigger seat and the microswitch component, and the mounting hole of the microswitch component is a waist-shaped hole.
The micro switch assembly is installed at the corresponding position of the support through a screw and a nut, and the installation position is adjusted through a reserved waist-shaped hole, so that the micro switch assembly is in contact with the 10-degree conical end transition part of the trigger shaft.
In the process of unfolding and rotating the unfolded component, the contact between the spherical surface at the upper part of the trigger shaft and the 1/4 large arc surface of the unfolded component is increased, the unfolded component provides downward force for the trigger shaft to overcome the compression spring, so that the trigger shaft moves downwards, and the elastic sheet of the microswitch component deforms to complete the triggering action.
In the downward movement process of the trigger shaft, the contact position of the micro switch assembly and the trigger seat is increased to the lower shaft section of the trigger shaft from a 10-degree conical end, so that an elastic sheet in the micro switch assembly deforms to trigger the micro switch.
The small plane of the shaft section at the lower part of the trigger shaft is correspondingly arranged with the small plane of the stepped hole at the lower part of the trigger seat, so that the installation and movement directions are unique.
Has the advantages that:
the trigger mechanism has a simple structure and a small volume, skillfully utilizes the compression spring at the initial position, effectively reduces the positive impact force in the trigger process of the microswitch, improves the stability and the reliability of the trigger of the microswitch and prolongs the service life of the trigger, eliminates the influence of errors generated by part processing on the trigger of the microswitch, and reduces the difficulty of part processing.
Drawings
FIG. 1 is a schematic view of the microswitch triggering mechanism of the present invention;
FIG. 2 is a schematic view of a microswitch actuation mechanism (not actuated);
FIG. 3 is a schematic view of the microswitch triggering mechanism (triggered state);
FIG. 4 is a schematic structural diagram of a deployed module;
FIG. 5 is a front view of the trigger shaft;
FIG. 6 is a bottom view of the trigger shaft of FIG. 5;
FIG. 7 is a schematic view of a compression spring structure;
FIG. 8 is a front view of the trigger base;
FIG. 9 is a bottom view of the trigger block of FIG. 8;
FIG. 10 is a left side semi-sectional view of the trigger foot of FIG. 8;
FIG. 11 is a schematic view of the microswitch assembly;
fig. 12 is a schematic view of a stent structure.
The device comprises a base, a tension spring, a trigger seat, a microswitch component and a bracket, wherein the tension spring comprises 1-a stretched component, 2-a trigger shaft, 3-a compression spring, 4-the trigger seat, 5-the microswitch component and 6-the bracket.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
As shown in fig. 1-12, the present invention provides a microswitch actuation mechanism comprising the following components: the device comprises a stretched component 1, a trigger shaft 2, a compression spring 3, a trigger seat 4, a microswitch component 5 and a bracket 6;
the trigger shaft 2 is of a three-section shaft structure, the top of the trigger shaft is a spherical surface, and the diameter of the middle shaft is larger than the diameters of the shafts at the two ends and larger than the outer diameter of the compression spring 3. The lower section of the trigger shaft 2 is of a special-shaped structure, a small plane is milled on one side of the shaft, a 10-degree conical section is arranged at the tail end of the shaft, the whole length of the trigger shaft is longer than that of the trigger seat 4, and the trigger shaft 2 is plated with MoS on the whole 2 And the friction force between the contact parts is reduced.
The position of the extended component 1 corresponding to the top of the spherical surface of the trigger shaft 2 is in a 1/4 large circular arc structure, and the center of the spherical surface of the trigger shaft 2 is coincided with the center of the extended component 1.
The inner diameter of the compression spring 3 is larger than the diameter of the lower shaft end of the trigger shaft 2, and the outer diameter of the compression spring 3 is smaller than the diameter of the trigger seat 4.
The trigger seat 4 is of an arch structure, a stepped hole is formed in the middle of the trigger seat, and the diameter of the upper portion of the trigger seat is larger than that of the middle shaft of the trigger shaft. The aperture of the lower part is slightly larger than the lower section of the trigger shaft 2, and the lower part structure of the stepped hole of the trigger seat 4 is matched with the lower section structure of the trigger shaft 2. The trigger seat 4 is mounted at a corresponding position of the bracket 6 through a screw.
The micro switch assembly 5 mainly comprises a micro switch and an elastic sheet. The micro switch assembly is installed at the corresponding position of the support through a screw and a nut, and the installation position is adjusted through a reserved waist-shaped hole, so that the micro switch assembly is in contact with the transition position of the 10-degree conical end of the trigger shaft.
The support 6 is reserved with mounting holes corresponding to the unfolded component 1, the trigger seat 4 and the micro-switch component 5, and the mounting holes of the micro-switch component 5 are waist-shaped holes.
The trigger seat 4 is connected with the bracket 6 through threads;
the compression spring 3 is arranged in the step hole of the trigger seat 4, the trigger shaft penetrates through the compression spring 3 and is arranged in the step hole of the trigger seat 4, and the lower end plane of the trigger shaft 2 is correspondingly arranged with the step hole plane of the trigger seat 4;
the deployed component 1 is in a compressed state, and the spherical surface on the upper part of the trigger shaft 2 is in contact with the arc surface of the deployed component 1 through the acting force provided by the compression spring 3.
The micro switch assembly 5 is installed at a corresponding position of the support 6 through a screw and a nut, and the installation position is adjusted through a reserved waist-shaped hole, so that the micro switch assembly 5 is in contact with a 10-degree conical end transition part of the trigger shaft.
In the process of unfolding and rotating the unfolded component 1, the contact between the spherical surface at the upper part of the trigger shaft 2 and the 1/4 large arc surface of the unfolded component is increased, the unfolded component 1 provides a force for overcoming the downward force of the compression spring 3 to the trigger shaft 2, so that the trigger shaft 2 moves downwards, and the elastic sheet of the microswitch component 5 deforms to complete the triggering action.
In the downward movement process of the trigger shaft 2, the contact position of the micro switch assembly 5 and the trigger seat 2 is increased to the lower shaft section of the trigger shaft 2 from a 10-degree conical end, so that the elastic sheet in the micro switch assembly 5 deforms to trigger the micro switch.
And the shaft section small plane at the lower part of the trigger shaft 2 and the stepped hole small plane at the lower part of the trigger seat 4 are correspondingly arranged, so that the installation and movement directions are unique.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A microswitch triggering mechanism is characterized by comprising a stretched component (1), a triggering shaft (2), a compression spring (3), a triggering seat (4), a microswitch component (5) and a bracket (6);
the trigger shaft (2) is of a three-section shaft structure, the top of the trigger shaft is a spherical surface, and the diameter of the middle shaft is larger than the diameters of the shafts at the two ends and larger than the outer diameter of the compression spring (3); the lower section of the trigger shaft (2) is of a special-shaped structure, a small plane is milled on one side of the shaft, a 10-degree conical section is arranged at the tail end of the shaft, and the whole length of the conical section is longer than that of the trigger seat (4);
the position of the stretched component (1) corresponding to the spherical top of the trigger shaft (2) is of a 1/4 large circular arc structure, and the spherical center of the trigger shaft (2) is superposed with the center of the stretched component (1);
the inner diameter of the compression spring (3) is larger than the diameter of the shaft end at the lower part of the trigger shaft (2), and the outer diameter of the compression spring (3) is smaller than the aperture of the trigger seat (4);
the trigger seat (4) is of an arch structure, a step hole is formed in the middle of the trigger seat, and the diameter of the upper hole is larger than the diameter of the middle shaft of the trigger shaft; the aperture of the lower part is slightly larger than the lower section of the trigger shaft (2), and the lower part structure of the stepped hole of the trigger seat (4) is matched with the lower section structure of the trigger shaft (2); the trigger seat (4) is arranged at the corresponding position of the bracket (6) through a screw;
the micro switch assembly (5) mainly comprises a micro switch and an elastic sheet;
the bracket (6) is reserved with mounting hole positions corresponding to the unfolded component (1), the trigger seat (4) and the microswitch component (5), and the mounting hole of the microswitch component (5) is a waist-shaped hole.
2. A microswitch triggering mechanism according to claim 1, characterised in that the trigger seat (4) is connected to the bracket (6) by means of a screw thread;
the compression spring (3) is arranged in a step hole of the trigger seat (4), the trigger shaft penetrates through the compression spring (3) and is arranged in the step hole of the trigger seat (4), and the lower end plane of the trigger shaft (2) is correspondingly arranged with the step hole plane of the trigger seat (4);
the deployed component (1) is in a compressed state, and the spherical surface of the upper part of the trigger shaft (2) is in contact with the arc surface of the deployed component (1) through the acting force provided by the compression spring (3).
3. The microswitch triggering mechanism according to claim 1, wherein the microswitch assembly (5) is mounted at a corresponding position of the bracket (6) through a screw and a nut, and the mounting position is adjusted through a reserved kidney-shaped hole, so that the microswitch assembly (5) is in contact with a 10-degree cone end transition part of the trigger shaft (2).
4. The microswitch triggering mechanism according to claim 1, wherein during the unfolding and rotating movement of the unfolded component (1), the upper spherical surface of the triggering shaft (2) is in contact with the 1/4 large circular arc surface of the unfolded component (1) to increase, and the unfolded component (1) provides downward force to the triggering shaft (2) to overcome the compression spring (3), so that the triggering shaft (2) moves downward.
5. A microswitch triggering mechanism according to claim 1, characterized in that during the downward movement of the trigger shaft (2), the contact position of the microswitch assembly (5) and the trigger shaft (2) is increased from a 10 ° cone end to the lower shaft section of the trigger shaft (2), so that the spring in the microswitch assembly (5) is deformed to trigger the microswitch.
6. The microswitch triggering mechanism in claim 1, wherein the lower shaft segment facet of the trigger shaft (2) is correspondingly installed with the lower stepped hole facet of the trigger base (4), so that the installation and movement directions are unique.
CN202011469178.2A 2020-12-14 2020-12-14 Microswitch triggering mechanism Active CN112614719B (en)

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Application Number Priority Date Filing Date Title
CN202011469178.2A CN112614719B (en) 2020-12-14 2020-12-14 Microswitch triggering mechanism

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Application Number Priority Date Filing Date Title
CN202011469178.2A CN112614719B (en) 2020-12-14 2020-12-14 Microswitch triggering mechanism

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CN112614719A CN112614719A (en) 2021-04-06
CN112614719B true CN112614719B (en) 2022-11-11

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204144114U (en) * 2014-11-10 2015-02-04 沈阳黎明航空发动机(集团)有限责任公司 A kind of aero-engine microswitch
CN206349275U (en) * 2017-01-05 2017-07-21 中山市上品电器有限公司 A kind of mixer construction of switch
CN107342176A (en) * 2017-07-05 2017-11-10 上海宇航系统工程研究所 Utilize the adjustable trigger device in place of microswitch
WO2018036755A1 (en) * 2016-08-25 2018-03-01 Unilever Plc Pressure-adjustable high-pressure switch and water purifier using the high-pressure switch
CN108922811A (en) * 2018-06-06 2018-11-30 沈阳隆迪电器设备有限公司 A kind of small size multi-path pair is normally opened to close fine motion trigger mechanism and microswitch
CN109585192A (en) * 2018-12-04 2019-04-05 四川凌峰航空液压机械有限公司 Reduce the deceleration device of microswitch impact energy
WO2019185996A1 (en) * 2018-03-29 2019-10-03 Hager-Electro Sas Auxiliary device for circuit-breaking switch with moulded case, and circuit-breaking switch with moulded case comprising said auxiliary device
CN110867335A (en) * 2019-12-12 2020-03-06 天津工程机械研究院有限公司 Microswitch triggering mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140131187A1 (en) * 2012-11-10 2014-05-15 Solteam Electronics Co., Ltd. Heat-Spot Distant Type Push Switch Structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204144114U (en) * 2014-11-10 2015-02-04 沈阳黎明航空发动机(集团)有限责任公司 A kind of aero-engine microswitch
WO2018036755A1 (en) * 2016-08-25 2018-03-01 Unilever Plc Pressure-adjustable high-pressure switch and water purifier using the high-pressure switch
CN206349275U (en) * 2017-01-05 2017-07-21 中山市上品电器有限公司 A kind of mixer construction of switch
CN107342176A (en) * 2017-07-05 2017-11-10 上海宇航系统工程研究所 Utilize the adjustable trigger device in place of microswitch
WO2019185996A1 (en) * 2018-03-29 2019-10-03 Hager-Electro Sas Auxiliary device for circuit-breaking switch with moulded case, and circuit-breaking switch with moulded case comprising said auxiliary device
CN108922811A (en) * 2018-06-06 2018-11-30 沈阳隆迪电器设备有限公司 A kind of small size multi-path pair is normally opened to close fine motion trigger mechanism and microswitch
CN109585192A (en) * 2018-12-04 2019-04-05 四川凌峰航空液压机械有限公司 Reduce the deceleration device of microswitch impact energy
CN110867335A (en) * 2019-12-12 2020-03-06 天津工程机械研究院有限公司 Microswitch triggering mechanism

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