CN113299497B - Cylindrical travel switch - Google Patents
Cylindrical travel switch Download PDFInfo
- Publication number
- CN113299497B CN113299497B CN202110698115.2A CN202110698115A CN113299497B CN 113299497 B CN113299497 B CN 113299497B CN 202110698115 A CN202110698115 A CN 202110698115A CN 113299497 B CN113299497 B CN 113299497B
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- China
- Prior art keywords
- fixedly connected
- spring
- contact piece
- shell
- guide rod
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
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- Push-Button Switches (AREA)
Abstract
The invention discloses a cylindrical travel switch, comprising: the device comprises a shell, a triggering structure, a transmission structure, a guide rod, a driving structure and a wiring structure; the triggering structure comprises a ball, a bearing piece and a first spring, and the ball is fixedly connected with the bearing piece; the transmission structure comprises a limiting sleeve, a second spring and a connecting rod, and the limiting sleeve is fixedly connected with the bearing piece; one end of the first spring is fixedly connected with the bearing piece, the other end of the first spring is fixedly connected with the connecting rod, the connecting rod penetrates through the limiting sleeve and the second spring, one end of the second spring is fixedly connected with the limiting sleeve, and the other end of the second spring is fixedly connected with the shell; the connecting rod is fixedly connected with the guide rod. Therefore, the first spring and the second spring are arranged between the ball and the guide rod, when the ball is impacted by the outside, the external impact force can be effectively reduced through the elastic deformation of the first spring and the second spring, the guide rod can be pushed to move rightwards, the control circuit is switched on, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of travel switches, in particular to a cylindrical travel switch.
Background
As is known, a travel switch is one of position switches, and is a common low-current master electrical appliance, and a contact of the travel switch is operated by collision of mechanical moving parts to achieve connection or disconnection of a control circuit, so as to achieve a certain control purpose.
In the prior art, when an external mechanical motion part collides with a collision block of a travel switch with a large force, the travel switch cannot buffer external impact force, so that the travel switch is damaged after long-time use, the control precision of the travel switch is possibly influenced, and the service life of the travel switch is short.
Therefore, the problem to be solved by the technical personnel in the field is how to design a cylindrical travel switch to prolong the service life of the cylindrical travel switch.
Disclosure of Invention
The invention provides a cylindrical travel switch, which can effectively buffer external impact force, reduce the impact force born by the travel switch and is beneficial to prolonging the service life of the travel switch.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an embodiment of the present invention provides a cylindrical travel switch, including: the device comprises a shell, a triggering structure, a transmission structure, a guide rod, a driving structure and a wiring structure;
the trigger structure, the transmission structure, the guide rod, the driving structure and the wiring structure are all arranged in the shell, the trigger structure is fixedly connected with the transmission structure, the transmission structure is fixedly connected with the guide rod, the guide rod is abutted against the driving structure, and the driving structure is connected with the wiring structure;
the trigger structure drives the transmission structure and the guide rod to move towards a direction far away from the trigger structure, so that the drive structure is contacted with the wiring structure, and a control circuit is switched on;
the trigger structure comprises a ball, a bearing piece and a first spring, and the ball is fixedly connected with the bearing piece;
the transmission structure comprises a limiting sleeve, a second spring and a connecting rod, and the limiting sleeve is fixedly connected with the bearing piece;
one end of the first spring is fixedly connected with the bearing piece, the other end of the first spring is fixedly connected with the connecting rod, the connecting rod penetrates through the limiting sleeve and the second spring, one end of the second spring is fixedly connected with the limiting sleeve, and the other end of the second spring is fixedly connected with the shell; the connecting rod is fixedly connected with the guide rod.
Optionally, in an embodiment of the present invention, the driving structure includes a cylindrical barrel, a first contact piece, a second contact piece, and a third contact piece;
the cylindrical barrel is fixedly arranged in the shell, the first contact piece, the second contact piece and the third contact piece are arranged in the cylindrical barrel, the first contact piece is fixedly connected with the second contact piece, and the second contact piece is fixedly connected with the third contact piece.
Optionally, in an embodiment of the present invention, the wiring structure includes a common terminal, a normally closed terminal, a normally open terminal, and a ground terminal;
the common terminal is connected to the first contact piece, the normally open terminal is connected to the second contact piece, and the ground terminal is connected to the third contact piece.
Optionally, in an embodiment of the present invention, the apparatus further includes a fixing member;
the fixing piece is fixedly connected with the shell;
the inner diameter of the fixing piece is matched with the outer diameter of the bearing piece.
Optionally, in an embodiment of the present invention, the cross-sectional shape of the bearing part is a "zigzag" shape.
Optionally, in an embodiment of the present invention, the housing includes an upper end housing, a middle end housing, and a lower end housing;
the upper end shell is in threaded connection with the middle end shell, and the middle end shell is in threaded connection with the lower end shell;
two nuts are arranged on the upper end shell.
The invention has the advantages and positive effects that: when the external mechanical moving part collides with the ball, the ball is fixedly connected with the bearing piece and moves rightwards, the bearing piece is driven to move rightwards along the fixing piece, the first spring is compressed, and the bearing piece moves rightwards due to the fact that the bottom of the bearing piece is fixedly connected with the limiting sleeve, the limiting sleeve is driven to move rightwards, the second spring is compressed, the connecting rod moves rightwards, and the connecting rod is fixedly connected with the guide rod, so that the guide rod moves rightwards;
the guide rod is abutted against the first contact piece, the first contact piece is fixedly connected with the second contact piece, then the guide rod moves rightwards to drive the first contact piece and the second contact piece to move rightwards, and the second contact piece is connected with the normally open end of the wiring structure to realize the connection of the control circuit;
and when the external mechanical motion part does not collide with the ball any more, the first spring and the second spring are restored to the natural state from the compressed state, and the guide rod, the connecting rod, the bearing piece and the ball are driven to move leftwards, so that the normally open end of the second contact piece and the wiring structure is disconnected, and the breaking control circuit is realized.
Therefore, the first spring and the second spring are arranged between the ball and the guide rod, when the ball is impacted by the outside, the external impact force can be effectively reduced through the elastic deformation of the first spring and the second spring, the guide rod can be pushed to move rightwards, the control circuit is switched on, and the service life is prolonged.
Drawings
FIG. 1 is an internal cross-sectional view of a cylindrical travel switch provided in accordance with the present invention;
reference numerals:
1. a housing; 2. a trigger structure; 3. a transmission structure; 4. a guide bar; 5. a drive structure; 6. a wiring structure; 7. a ball bearing; 8. a receiving member; 9. a first spring; 10. a limiting sleeve; 11. a second spring; 12. a connecting rod; 131. a cylindrical barrel; 13. a first contact pad; 14. a second contact pad; 15. a third contact pad; 16. a common terminal; 17. a normally closed end; 18. a normally open end; 19. a ground terminal; 20. a fixing member; 21. an upper end housing; 22. a middle-end housing; 23. a lower end housing; 24. and a nut.
Detailed Description
The description of the present invention referring to "first", "second", etc. is for descriptive purposes only, not specifically referring to the sequential or chronological meanings, but also not for limiting the present invention, and it is only for distinguishing the components or operations described in the same technical terms, and it is not to be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated, whereby the features defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.
The embodiments of the invention will be described in further detail below with reference to the accompanying drawings:
the invention provides a cylindrical travel switch, as shown in fig. 1, comprising: the device comprises a shell 1, a trigger structure 2, a transmission structure 3, a guide rod 4, a driving structure 5 and a wiring structure 6;
the trigger structure 2, the transmission structure 3, the guide rod 4, the driving structure 5 and the wiring structure 6 are all arranged in the shell 1, the trigger structure 2 is fixedly connected with the transmission structure 3, the transmission structure 3 is fixedly connected with the guide rod 4, the guide rod 4 is abutted to the driving structure 5, and the driving structure 5 is connected with the wiring structure 6;
the trigger structure 2 drives the transmission structure 3 and the guide rod 4 to move towards the direction far away from the trigger structure 2, so that the driving structure 5 is contacted with the wiring structure 6, and a control circuit is switched on;
the trigger structure 2 comprises a ball 7, a bearing piece 8 and a first spring 9, wherein the ball 7 is fixedly connected with the bearing piece 8;
the transmission structure 3 comprises a limiting sleeve 10, a second spring 11 and a connecting rod 12, and the limiting sleeve 10 is fixedly connected with the bearing part 8;
one end of the first spring 9 is fixedly connected with the bearing piece 8, the other end of the first spring 9 is fixedly connected with the connecting rod 12, the connecting rod 12 penetrates through the limiting sleeve 10 and the second spring 11, one end of the second spring 11 is fixedly connected with the limiting sleeve 10, and the other end of the second spring 11 is fixedly connected with the shell 1; the connecting rod 12 is fixedly connected with the guide rod 4.
Thus, in the invention, the first spring 9 and the second spring 11 are arranged between the ball 7 and the guide rod 4, when the ball 7 is impacted by the outside, the external impact force can be effectively reduced through the elastic deformation of the first spring 9 and the second spring 11, the guide rod 4 can be pushed to move rightwards, the control circuit is switched on, and the service life is prolonged.
Alternatively, in the present embodiment, the driving structure 5 includes a cylindrical barrel 131, a first contact piece 13, a second contact piece 14 and a third contact piece 15;
the cylindrical barrel 131 is fixedly arranged in the housing 1, the first contact piece 13, the second contact piece 14 and the third contact piece 15 are arranged in the cylindrical barrel 131, the first contact piece 13 is fixedly connected with the second contact piece 14, and the second contact piece 14 is fixedly connected with the third contact piece 15.
In this way, subsequent switching on of the control circuit is facilitated.
Optionally, in the embodiment of the present invention, the wiring structure 6 includes a common terminal 16, a normally closed terminal 17, a normally open terminal 18, and a ground terminal 19;
the common terminal 16 is connected to the first contact piece 13, the normally open terminal 18 is connected to the second contact piece 14, and the ground terminal 19 is connected to the third contact piece 15.
In this way, the control circuit can be turned on by the wiring structure 6.
Optionally, in the embodiment of the present invention, a fixing member 20 is further included;
the fixing piece 20 is fixedly connected with the shell 1;
the inner diameter of the fixing element 20 is matched to the outer diameter of the receiving element 8.
In this way, since the outer diameter of the socket 8 is smaller than the diameter of the housing 1, the socket 8 can be fixed by the fixing member 20, and the socket 8 is prevented from being skewed when moving left and right.
Optionally, in the embodiment of the present invention, the cross-sectional shape of the bearing member 8 is a "zigzag" shape.
Thus, the bottom of the bearing part 8 is fixedly connected with the limiting sleeve 10, so that the limiting sleeve 10 can be driven to move left and right when the bearing part 8 moves left and right.
Optionally, in the present embodiment, the housing 1 includes an upper end housing 21, a middle end housing 22, and a lower end housing 23;
the upper end shell 21 is in threaded connection with the middle end shell 22, and the middle end shell 22 is in threaded connection with the lower end shell 23;
two nuts 24 are arranged on the upper end shell 21.
The working principle and the working process of the invention are as follows: when an external mechanical moving part collides with the ball 7, wherein the ball 7 is fixedly connected with the bearing part 8, the ball 7 moves rightwards to drive the bearing part 8 to move rightwards along the fixing part 20, and the first spring 9 is compressed, and because the bottom of the bearing part 8 is fixedly connected with the limiting sleeve 10, the bearing part 8 moves rightwards to drive the limiting sleeve 10 to move rightwards, and the second spring 11 is compressed to enable the connecting rod 12 to move rightwards, and the connecting rod 12 is fixedly connected with the guide rod 4, so that the guide rod 4 moves rightwards;
to illustrate, when the right end of the restraining sleeve 10 abuts the left end of the middle housing 22, it indicates that the restraining sleeve 10 has moved to the right to the maximum extent.
The guide rod 4 is abutted against the first contact piece 13, the first contact piece 13 is fixedly connected with the second contact piece 14, then the guide rod 4 moves rightwards to drive the first contact piece 13 and the second contact piece 14 to move rightwards, and the second contact piece 14 is connected with the normally open end 18 of the wiring structure 6 to realize the connection of a control circuit;
when the external mechanical moving part does not collide with the ball 7 any more, the first spring 9 and the second spring 11 are restored to the natural state from the compressed state, and the guide rod 4, the connecting rod 12, the receiving piece 8 and the ball 7 are driven to move leftwards, so that the second contact piece 14 is disconnected with the normally open end 18 of the wiring structure 6, and the breaking control circuit is realized.
Thus, in the invention, the first spring 9 and the second spring 11 are arranged between the ball 7 and the guide rod 4, when the ball 7 is impacted by the outside, the external impact force can be effectively reduced through the elastic deformation of the first spring 9 and the second spring 11, the guide rod 4 can be pushed to move rightwards, the control circuit is switched on, and the service life is prolonged.
It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but other embodiments derived from the technical solutions of the present invention by those skilled in the art are also within the scope of the present invention.
Claims (6)
1. A cylindrical travel switch, comprising: the device comprises a shell (1), a triggering structure (2), a transmission structure (3), a guide rod (4), a driving structure (5) and a wiring structure (6);
the trigger structure (2), the transmission structure (3), the guide rod (4), the driving structure (5) and the wiring structure (6) are all arranged in the shell (1), the trigger structure (2) is fixedly connected with the transmission structure (3), the transmission structure (3) is fixedly connected with the guide rod (4), the guide rod (4) is abutted to the driving structure (5), and the driving structure (5) is connected with the wiring structure (6);
the trigger structure (2) drives the transmission structure (3) and the guide rod (4) to move towards the direction far away from the trigger structure (2), so that the driving structure (5) is contacted with the wiring structure (6), and a control circuit is switched on;
the trigger structure (2) comprises a ball (7), a bearing piece (8) and a first spring (9), and the ball (7) is fixedly connected with the bearing piece (8);
the transmission structure (3) comprises a limiting sleeve (10), a second spring (11) and a connecting rod (12), and the limiting sleeve (10) is fixedly connected with the bearing piece (8);
one end of the first spring (9) is fixedly connected with the bearing piece (8), the other end of the first spring (9) is fixedly connected with the connecting rod (12), the connecting rod (12) penetrates through the limiting sleeve (10) and the second spring (11), one end of the second spring (11) is fixedly connected with the limiting sleeve (10), and the other end of the second spring (11) is fixedly connected with the shell (1); the connecting rod (12) is fixedly connected with the guide rod (4).
2. A cylindrical travel switch according to claim 1, characterized in that the driving structure (5) comprises a cylindrical barrel (131), a first contact plate (13), a second contact plate (14) and a third contact plate (15);
the cylindrical barrel (131) is fixedly arranged in the shell (1), the first contact piece (13), the second contact piece (14) and the third contact piece (15) are arranged in the cylindrical barrel (131), the first contact piece (13) is fixedly connected with the second contact piece (14), and the second contact piece (14) is fixedly connected with the third contact piece (15).
3. A cylindrical travel switch according to claim 2, characterized in that the wiring structure (6) comprises a common terminal (16), a normally closed terminal (17), a normally open terminal (18) and a ground terminal (19);
the common terminal (16) is connected to the first contact piece (13), the normally open terminal (18) is connected to the second contact piece (14), and the ground terminal (19) is connected to the third contact piece (15).
4. A cylindrical travel switch according to claim 1, further comprising a fixed member (20);
the fixing piece (20) is fixedly connected with the shell (1);
the inner diameter of the fixing part (20) is matched with the outer diameter of the adapting part (8).
5. A cylindrical travel switch according to claim 4, characterized in that the cross-sectional shape of the adapter (8) is "inverted" in shape.
6. A cylindrical travel switch according to claim 1, characterized in that the housing (1) comprises an upper end housing (21), a middle end housing (22) and a lower end housing (23);
the upper end shell (21) is in threaded connection with the middle end shell (22), and the middle end shell (22) is in threaded connection with the lower end shell (23);
two nuts (24) are arranged on the upper end shell (21).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110698115.2A CN113299497B (en) | 2021-06-23 | 2021-06-23 | Cylindrical travel switch |
Applications Claiming Priority (1)
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CN202110698115.2A CN113299497B (en) | 2021-06-23 | 2021-06-23 | Cylindrical travel switch |
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CN113299497A CN113299497A (en) | 2021-08-24 |
CN113299497B true CN113299497B (en) | 2022-07-05 |
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CN202110698115.2A Active CN113299497B (en) | 2021-06-23 | 2021-06-23 | Cylindrical travel switch |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191101037A (en) * | 1911-01-14 | 1911-05-11 | Andrew Wybrant Penrose | Improvements in Electrical Switches. |
GB594986A (en) * | 1945-04-09 | 1947-11-24 | South Wales Switchgear | Improvements in or relating to electrical circuit breakers, having buffer or dampingdevices |
GB1107559A (en) * | 1964-07-07 | 1968-03-27 | Heid Ag Maschf | Improvements in or relating to copying tracers |
EP1710821A1 (en) * | 2005-04-07 | 2006-10-11 | Delphi Technologies Inc. | Tappet switch |
CN205487786U (en) * | 2016-02-05 | 2016-08-17 | 永鸥电气有限公司 | Travel switch |
CN206471237U (en) * | 2016-10-26 | 2017-09-05 | 浙江正泰电器股份有限公司 | The operating mechanism with multi-buffer device of travel switch |
CN207474313U (en) * | 2017-11-10 | 2018-06-08 | 温州市黎东眼镜有限公司 | A kind of travel switch |
CN109003845A (en) * | 2018-03-09 | 2018-12-14 | 北京微分航宇科技有限公司 | A kind of small-sized travel switch |
CN210223805U (en) * | 2019-08-08 | 2020-03-31 | 海安市申菱电器制造有限公司 | Travel switch for elevator |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106128812B (en) * | 2016-08-23 | 2018-09-21 | 浙江旭瑞电子有限公司 | Electromagnetic type automatically resets travel switch |
CN207925328U (en) * | 2018-01-19 | 2018-09-28 | 北京光瑞机械制造有限责任公司 | Touch switch control mechanism |
CN108400032A (en) * | 2018-04-23 | 2018-08-14 | 佛山市高明欧电子制造有限公司 | A kind of travel switch of high security lever construction |
-
2021
- 2021-06-23 CN CN202110698115.2A patent/CN113299497B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191101037A (en) * | 1911-01-14 | 1911-05-11 | Andrew Wybrant Penrose | Improvements in Electrical Switches. |
GB594986A (en) * | 1945-04-09 | 1947-11-24 | South Wales Switchgear | Improvements in or relating to electrical circuit breakers, having buffer or dampingdevices |
GB1107559A (en) * | 1964-07-07 | 1968-03-27 | Heid Ag Maschf | Improvements in or relating to copying tracers |
EP1710821A1 (en) * | 2005-04-07 | 2006-10-11 | Delphi Technologies Inc. | Tappet switch |
CN205487786U (en) * | 2016-02-05 | 2016-08-17 | 永鸥电气有限公司 | Travel switch |
CN206471237U (en) * | 2016-10-26 | 2017-09-05 | 浙江正泰电器股份有限公司 | The operating mechanism with multi-buffer device of travel switch |
CN207474313U (en) * | 2017-11-10 | 2018-06-08 | 温州市黎东眼镜有限公司 | A kind of travel switch |
CN109003845A (en) * | 2018-03-09 | 2018-12-14 | 北京微分航宇科技有限公司 | A kind of small-sized travel switch |
CN210223805U (en) * | 2019-08-08 | 2020-03-31 | 海安市申菱电器制造有限公司 | Travel switch for elevator |
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