CN210142601U - High-reliability small-sized locking button switch - Google Patents
High-reliability small-sized locking button switch Download PDFInfo
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- CN210142601U CN210142601U CN201921337128.1U CN201921337128U CN210142601U CN 210142601 U CN210142601 U CN 210142601U CN 201921337128 U CN201921337128 U CN 201921337128U CN 210142601 U CN210142601 U CN 210142601U
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Abstract
The utility model provides a high-reliability small-sized locking button switch, which comprises a movable contact spring, a shell and a button cap; the press handle cap is packaged at the top of the shell, and a first cam is fixed at the lower end of the press handle cap; a base is fixed at the bottom end of the shell, a pressure spring is fixed in the base, a pressing sheet is sleeved in the pressure spring, a rotating shaft is fixed at the top of the pressing sheet, a second cam is sleeved on the rotating shaft, a cam sleeve is fixed at the top end of the base and sleeved in the shell, and the cam sleeve, the second cam and the first cam form a cam type locking mechanism; a movable contact piece is fixed on the pressing piece, a short conductive piece and a long conductive piece are fixed in the base, a first stationary contact is arranged on the short conductive piece and positioned in the base, and a second stationary contact is arranged on the long conductive piece and positioned in the base. The utility model discloses can enlarge application range, increase switch environment adaptability pluralism, realize the omniseal, resistant heavy current, low temperature resistant, the locking reliability is high, advantage that life-span number of times is high.
Description
Technical Field
The utility model relates to a small-size locking button switch of high reliability.
Background
The small locking button switch is a switch which drives the internal moving contact piece to switch by the pushing force which is in the same straight line with the button stroke. It is an important element in control consoles and panel control systems of various instruments, meters and electromechanical equipment; the switch is characterized in that the switch is installed in a machine and an instrument in operation, most of the time is in the position of an initial free state, namely, 1 pin and 3 pins of the switch are disconnected, 2 pins and 4 pins are in a connected state, when the switch is pressed, a switch pressing handle cap moves downwards under the action of external force, when a critical point is reached, a switch movable contact piece assembly reverses, the 2 pins and 4 pins are disconnected, the 1 pin and 3 pins are in the connected state, a switch circuit reverses, meanwhile, a switch cam locking mechanism rotates, and the switch realizes a locking function. And after the external force disappears, the switch returns to the initial state under the action of the pressure spring, the pins 1 and 3 of the switch are switched off, the pins 2 and 4 of the switch are switched on, and the switch returns to the initial position again.
The locking mechanism of a common push-button switch is of a hook-spring type. The locking mechanism has low service life times, and the locking reliability mainly depends on the high precision of parts, and the locking mechanism has poor reliability and is easy to have the phenomena of unhooking, clamping and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a small-size locking button switch of high reliability, this small-size locking button switch of high reliability can enlarge application range, increases switch environment adaptability pluralism, realizes the omniseal, and resistant heavy current is low temperature resistant, and the locking reliability is high, advantage that the life-span number of times is high.
The utility model discloses a following technical scheme can realize.
The utility model provides a high-reliability small-sized locking button switch, which comprises a movable contact spring, a shell and a button cap; the press handle cap is packaged at the top of the shell, and a first cam is fixed at the lower end of the press handle cap; a base is fixed at the bottom end of the shell, a pressure spring is fixed in the base, a pressing sheet is sleeved in the pressure spring, a rotating shaft is fixed at the top of the pressing sheet, a second cam is sleeved on the rotating shaft, a cam sleeve is fixed at the top end of the base and sleeved in the shell, and the cam sleeve, the second cam and the first cam form a cam type locking mechanism; a movable contact is fixed on the pressing sheet, a short conductive piece and a long conductive piece are fixed in the base, a first fixed contact is arranged on the short conductive piece and positioned in the base, a second fixed contact is arranged on the long conductive piece and positioned in the base, and the movable contact is only contacted with at most one of the first fixed contact and the second fixed contact at any time through a cam type locking mechanism consisting of the cam sleeve, the second cam and the first cam.
An inner waterproof ring is sleeved in the middle of the press handle cap and supported between the shell and the press handle cap.
The end face of the inner waterproof ring is sealed and fixed through glue.
And a sealing ring, an internal tooth elastic washer and a nut are sequentially arranged outside the shell.
In horizontal projection, the movable contact piece is positioned between the upper end of the short conductive piece and the upper end of the long conductive piece.
In vertical projection, the short conductive piece and the long conductive piece are circumferentially and uniformly distributed by taking the pressing piece as a circle center.
The short conductive piece and the first static contact are welded and fixed, and the second static contact and the long conductive piece are welded and fixed.
The short conductive piece is fastened by clamping, riveting and twisting at an angle of 20-30 degrees.
The movable contact pieces are two and are fixedly connected through tension springs, the pressing piece is provided with a V-shaped groove for fixing the movable contact pieces, and the movable contact pieces are fixedly riveted through turning.
The first fixed contact and the second fixed contact are made of palladium alloy, and the moving contact is made of silver cadmium oxide.
The beneficial effects of the utility model reside in that: the cam locking mechanism is adopted to realize the locking function, so that the reliability of the locking function is improved; the adoption of the quick reversing bounce connecting component can lead the reversing action of the switch contact mechanism to be quick and sensitive; the material with better arc extinguishing property is adopted to be used as the static contact and the movable contact, so that the problem that the service life of a product is seriously influenced by arc discharge of the product under the condition of high current is solved. The product has the advantages of high current resistance, full sealing, low temperature resistance, high locking reliability and long service life. The problems that the traditional switch of the type has low service life times, the locking reliability of the traditional switch mainly depends on the high precision of parts, the reliability is poor, the phenomena of unhooking, clamping hooks and the like are easy to occur, and the traditional switch cannot bear large current for a long time are solved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-movable contact, 2-movable contact, 3-movable contact, 4-tension spring, 5-short conductive piece, 6-first fixed contact, 7-second fixed contact, 8-long conductive piece, 9-compression spring, 10-base, 11-spacer, 12-rotating shaft, 13-cam sleeve, 14-second cam, 15-first cam, 16-inner waterproof ring, 17-shell, 18-handle cap, 19-sealing ring, 20-nut, 21-inner tooth elastic washer, 22-installation panel, 23-703 glue, 24-epoxy resin glue.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
A high-reliability small-sized locking button switch as shown in figure 1 comprises a movable contact 2, a shell 17 and a button cap 18; the handle cap 18 is sealed at the top of the shell 17, and the lower end of the handle cap 18 is fixed with the first cam 15; a base 10 is fixed at the bottom end of the shell 17, a pressure spring 9 is fixed in the base 10, a pressing sheet 3 is sleeved in the pressure spring 9, a rotating shaft 12 is fixed at the top of the pressing sheet 3, a second cam 14 is sleeved on the rotating shaft 12, a cam sleeve 13 is fixed at the top end of the base 10 and is arranged in the shell 17, and the cam sleeve 13, the second cam 14 and the first cam 15 form a cam type locking mechanism; the movable contact piece 2 is fixed on the pressing piece 3, the short conductive piece 5 and the long conductive piece 8 are fixed in the base 10, the first fixed contact 6 is arranged on the short conductive piece 5 and positioned in the base 10, the second fixed contact 7 is arranged on the long conductive piece 8 and positioned in the base 10, and the movable contact piece 2 only contacts at most one of the first fixed contact 6 and the second fixed contact 7 at any time through a cam type locking mechanism consisting of the cam sleeve 13, the second cam 14 and the first cam 15.
The middle part of the press handle cap 18 is sleeved with an inner waterproof ring 16, and the inner waterproof ring 16 is supported between the shell 17 and the press handle cap 18.
The end face of the inner waterproof ring 16 is sealed and fixed through glue 23.
And a sealing ring 19, an internal tooth elastic washer 21 and a nut 20 are sequentially arranged outside the shell 17.
In horizontal projection, the movable contact piece 2 is located at a position between the upper end of the short conductive piece 5 and the upper end of the long conductive piece 8.
In vertical projection, the short conductive member 5 and the long conductive member 8 are circumferentially and uniformly distributed with the pressing piece 3 as a center.
The short conductive member 5 is welded to the first stationary contact 6, and the second stationary contact 7 is welded to the long conductive member 8.
The short conductive piece 5 is fastened by clamping, riveting and twisting at an angle of 20-30 degrees.
The movable contact pieces 2 are two and are fixedly connected through tension springs 4, V-shaped grooves are formed in the pressing pieces 3 and used for fixing the movable contact pieces 2, and movable contacts 1 are fixedly arranged on the movable contact pieces 2 through rivet turning.
The first fixed contact 6 and the second fixed contact 7 are made of palladium alloy, and the moving contact 1 is made of silver cadmium oxide.
Particularly, the utility model discloses a high low temperature developments waterproof sealing mechanism, cam-type locking mechanical system and quick reversing mechanism three main parts:
the high-low temperature dynamic waterproof sealing mechanism comprises a shell 17, a press handle cap 18, an inner waterproof ring 16, a sealing ring 19, a nut 20, an inner tooth elastic washer 21 and other parts. The high-low temperature dynamic waterproof sealing mechanism is characterized in that a press handle cap 18, an inner waterproof ring 16 and an outer shell 17 are fixedly sealed through 703 glue 23, and a sealing ring 19, an inner tooth elastic washer 21 and a nut 20 are sequentially arranged on the outer shell 17 and are fixed on a mounting plate 22.
The cam type locking mechanism is composed of a cam sleeve 13, a second cam 14, a first cam 15 and the like. The cam type locking mechanism is characterized in that the second cam 14 is connected with one end of the first cam 15, the other end of the first cam 15 penetrates through an inner hole of the cam sleeve 13, and the cam locking mechanism is coated with low-temperature lubricating oil to ensure that a product is not blocked at the low temperature of 60 ℃ below zero.
The quick reversing mechanism is an actuating mechanism of a switch, and the mechanism comprises a long conductive piece assembly, a short conductive piece assembly, a base set, a quick reversing bouncing connection assembly and a movable contact piece assembly and consists of a pressing piece 3, a tension spring 4, a short conductive piece 5, a first fixed contact 6, a second fixed contact 7, a long conductive piece 8, a pressure spring 9, a base 10, a spacer 11, a rotating shaft 12 and other parts. The quick reversing mechanism is characterized in that two short conductive component assemblies penetrate through No. 2 and No. 4 holes of a base 10 and are clamped, riveted and twisted at an angle of 20-30 degrees through a special clamp for fastening, a pressure spring 9 is arranged in the base 10, the other end of the pressure spring 9 is connected with a pressing piece 3 in a quick reversing bounce connecting assembly, the two long conductive component assemblies penetrate through No. 1 and No. 3 holes of the base 10, and then a spacer 11 is connected with the upper end surface of the base; the short conductive part assembly is connected by a short conductive part 5 and a first static contact 6 through welding; the long conductive member assembly is connected by welding through a long conductive member 8 and a second stationary contact 7; the quick reversing bounce connecting component is formed by connecting two movable contact piece components through a tension spring 4, and one end of each movable contact piece component is connected to a V-shaped groove of the corresponding pressing piece 3; the movable contact piece assembly is formed by turning and riveting a movable contact piece 2 and a movable contact 1 through a special clamp.
Generally, the lower edge of the outer wall of the base 10 is provided with an epoxy resin glue 24.
Claims (10)
1. A high-reliability small-sized locking button switch comprises a movable contact spring (2), a shell (17) and a button cap (18), and is characterized in that: the handle cap (18) is encapsulated at the top of the shell (17), and a first cam (15) is fixed at the lower end of the handle cap (18); a base (10) is fixed at the bottom end of the shell (17), a pressure spring (9) is fixed in the base (10), a pressing sheet (3) is sleeved in the pressure spring (9), a rotating shaft (12) is fixed at the top of the pressing sheet (3), a second cam (14) is sleeved on the rotating shaft (12), a cam sleeve (13) is fixed at the top end of the base (10) and is arranged in the shell (17), and the cam sleeve (13), the second cam (14) and the first cam (15) form a cam type locking mechanism; the movable contact piece (2) is fixed on the pressing piece (3), the short conductive piece (5) and the long conductive piece (8) are fixed in the base (10), the first fixed contact (6) is arranged on the short conductive piece (5) and positioned in the base (10), the second fixed contact (7) is arranged on the long conductive piece (8) and positioned in the base (10), and the movable contact piece (2) only contacts one of the first fixed contact (6) and the second fixed contact (7) at any time through a cam type locking mechanism consisting of the cam sleeve (13), the second cam (14) and the first cam (15).
2. A highly reliable compact locking push button switch as defined in claim 1 wherein: an inner waterproof ring (16) is sleeved in the middle of the press handle cap (18), and the inner waterproof ring (16) is supported between the shell (17) and the press handle cap (18).
3. A highly reliable compact locking push button switch as defined in claim 2, wherein: the end face of the inner waterproof ring (16) is sealed and fixed through glue (23).
4. A highly reliable compact locking push button switch as defined in claim 1 wherein: and a sealing ring (19), an internal tooth elastic washer (21) and a nut (20) are sequentially arranged outside the shell (17).
5. A highly reliable compact locking push button switch as defined in claim 1 wherein: in horizontal projection, the movable contact piece (2) is positioned between the upper end of the short conductive piece (5) and the upper end of the long conductive piece (8).
6. A highly reliable compact locking push button switch as defined in claim 1 wherein: in vertical projection, the short conductive piece (5) and the long conductive piece (8) are circumferentially and uniformly distributed by taking the pressing piece (3) as a circle center.
7. A highly reliable compact locking push button switch as defined in claim 1 wherein: the short conductive part (5) is welded and fixed with the first stationary contact (6), and the second stationary contact (7) is welded and fixed with the long conductive part (8).
8. A highly reliable compact locking push button switch as defined in claim 1 wherein: the short conductive piece (5) is fastened by clamping, riveting and twisting at an angle of 20-30 degrees.
9. A highly reliable compact locking push button switch as defined in claim 1 wherein: the movable contact pieces (2) are two and are fixedly connected through tension springs (4), V-shaped grooves are formed in the pressing pieces (3) and used for fixing the movable contact pieces (2), and movable contacts (1) are fixedly riveted on the movable contact pieces (2) through turning over.
10. A highly reliable compact locking push button switch as defined in claim 9 wherein: the first fixed contact (6) and the second fixed contact (7) are made of palladium alloy, and the moving contact (1) is made of silver cadmium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337128.1U CN210142601U (en) | 2019-08-16 | 2019-08-16 | High-reliability small-sized locking button switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337128.1U CN210142601U (en) | 2019-08-16 | 2019-08-16 | High-reliability small-sized locking button switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210142601U true CN210142601U (en) | 2020-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921337128.1U Active CN210142601U (en) | 2019-08-16 | 2019-08-16 | High-reliability small-sized locking button switch |
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| Country | Link |
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| CN (1) | CN210142601U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797225A (en) * | 2019-10-22 | 2020-02-14 | 贵州振华华联电子有限公司 | Push-touch electric switch with locking function |
| CN112038151A (en) * | 2020-09-11 | 2020-12-04 | 贵州振华华联电子有限公司 | Single-side locking button switch |
-
2019
- 2019-08-16 CN CN201921337128.1U patent/CN210142601U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797225A (en) * | 2019-10-22 | 2020-02-14 | 贵州振华华联电子有限公司 | Push-touch electric switch with locking function |
| CN112038151A (en) * | 2020-09-11 | 2020-12-04 | 贵州振华华联电子有限公司 | Single-side locking button switch |
| CN112038151B (en) * | 2020-09-11 | 2022-09-30 | 贵州振华华联电子有限公司 | Single-side locking button switch |
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