CN212084880U - Double-pole locking button switch - Google Patents
Double-pole locking button switch Download PDFInfo
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- CN212084880U CN212084880U CN202020838820.9U CN202020838820U CN212084880U CN 212084880 U CN212084880 U CN 212084880U CN 202020838820 U CN202020838820 U CN 202020838820U CN 212084880 U CN212084880 U CN 212084880U
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- button switch
- pressure spring
- movable contact
- push button
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Abstract
The utility model discloses a double-knife locking button switch, the outer side of a cam sleeve is fixedly connected with the inner wall of the middle part of a shell; the upper end of the pressure lever can be slidably penetrated through the shell and then sleeved with the press handle cap, and the lower end of the pressure lever can be slidably penetrated through the shell and the cam sleeve and then corresponds to the locking piece; the pressure lever is provided with a guide rail groove corresponding to the cam sleeve inclined plane body guide rail; the lower end of the locking piece is rotatably sleeved with the upper end of the pressing handle; a movable contact is fixed at the lower end of the press handle; two ends of the pressure spring A are respectively fixedly connected with the pressing handle and the bottom of the shell; two short conductive pieces are fixedly arranged at the lower part of the shell in a penetrating way at intervals and correspond to the movable contact points. Pressing the handle cap down, pressure spring first is compressed, and the depression bar gliding ends the latch fitting and rotates with the depression bar cooperation back for it takes place the dislocation to end the latch fitting and is limited by cam sleeve clinohedral guide rail and rise, and the power of restoring to the throne that the pressure spring first pushed up is limited by the latch fitting, makes and presses the handle cap and can not bounce by pressure spring first, has solved the problem that the handle cap is bounced by the sealing washer, has reached the unchangeable effect of state when button switch pressed.
Description
Technical Field
The utility model relates to a belong to electronic component technical field, and a double knives locking button switch.
Background
The button switch is a switch which realizes on-off state conversion by driving an internal contact to move by a driving force which moves in the same straight line with the button stroke; the market of electronic elements develops rapidly, and the small-volume fully-sealed double-pole locking button switch is developed to meet the market demand and meet the requirement of expanding the switch varieties of users and companies; traditional cam button switch, non-sealed button rely on handle cap self weight, distinguishable lock-out state, but sealed cam button switch, because of the sealing washer has elasticity, the handle cap is upspring by the sealing washer, leads to the difficult state of distinguishing when using button switch to appear the maloperation easily.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a double knives locking button switch.
The utility model discloses a following technical scheme can realize.
The utility model provides a pair of double knives locking button switch, include: a housing;
the outer side of the cam sleeve is fixedly connected with the inner wall of the middle part of the shell;
the upper end of the pressure rod can slidably penetrate through the shell and then is sleeved with the press handle cap, and the lower end of the pressure rod can slidably penetrate through the shell and the cam sleeve and then corresponds to the locking piece; the pressure lever is provided with a guide rail groove corresponding to the cam sleeve inclined plane body guide rail, so that the locking piece, the pressure lever and the cam sleeve form an automatic telescopic locking mechanism;
the lower end of the locking piece is rotatably sleeved with the upper end of the pressing handle;
the lower end of the press handle is fixed with a movable contact;
two ends of the pressure spring A are respectively fixedly connected with the pressing handle and the bottom of the shell;
and the top parts of the two short conductive parts respectively correspond to the movable contacts above the two short conductive parts.
The movable contact is made of silver indium oxide materials, so that the functions of arc discharge resistance and arc extinction are realized, and the switch is ensured to be used in a heavy-load circuit. Threads are axially arranged outside the shell, and the threads of the shell are milled flat; because the mounting mode is nut fixed, play and prevent the switch rotation, can effectively improve the maneuverability of switch.
The device also comprises a base; the base is fixedly arranged with the middle part of the shell, and the pressure spring A is sleeved with the convex body on the bottom surface of the base in a clearance way; the two short conductive parts and the fixed connecting end of the shell respectively penetrate through the base; the first dismouting of pressure spring of being convenient for.
The outer end face of the shell and the outer end face of the base are fixedly provided with the epoxy resin glue layer; the epoxy glue film is to locking the locking piece and prevent moving spacing.
The pressing handle is characterized by further comprising a pressure spring B, a limiting rod and an insulating block, wherein the top end of the pressure spring B is mounted in the middle of the pressing handle, the bottom end of the pressure spring B is in contact with the middle of the limiting rod penetrating through a through hole of the pressing handle, and the insulating block is sleeved at two ends of the limiting rod and limits the limiting rod to move left and right in the middle of the pressing handle; the spring force of the pressure spring B is greater than that of the pressure spring A; when pressing the handle cap and pressing down, pressure spring first is compressed earlier, and the pressure spring second of back compression moves down on one side by the compression depression bar, and after pressure spring second was compressed completely, the depression bar just got into the state of contact with locking piece, avoids the depression bar and stops the rigid impact contact of locking piece, improves the operating stability of depression bar, and double spring reset structure can self-regulation, guarantees switch contact reliability.
The two long conductive pieces are fixed and can sequentially penetrate through the epoxy resin adhesive layer and the base in a sliding manner, and the two long conductive pieces and the two short conductive pieces are crossed in a staggered manner; the movable contact piece is welded on the long conductive piece; the movable contact spring is elastically deformed by external force, and the elastic potential energy of the movable contact spring is less than that of the pressure spring B, so that the contact reliability is ensured, and the double-knife push-through is realized.
The lower end of the rotating shaft is fixedly sleeved with the pressing handle, and the upper end of the rotating shaft is rotatably sleeved with the lower end of the locking piece; the stability of the rotation of the pressing handle and the locking piece is improved through the rotating shaft.
The upper end of the positioning pin penetrates from the locking piece to the bottom of the pressure rod; the locking piece realizes that the pressure rod restrains the displacement of the handle cap through the positioning pin, and realizes the identification of the locking state.
The outer side surface of the top end of the press handle cap is provided with an annular groove, and a red paint marking layer is arranged in the groove; the switch states are distinguished by the stroke marks, and when the stroke marks are exposed on the shell in red, the switch is in an unlocked state; when the stroke mark red is inside the housing, the switch is in the locked state.
The upper end of the sealing ring is fixedly, hermetically and adhesively bonded with the press handle cap, and the lower end of the sealing ring is fixedly, hermetically and adhesively bonded with the upper end of the shell; the sealing ring prevents conductive fluid from entering parts below the pressure rod, and ensures the insulation safety below the parts below the pressure rod.
The beneficial effects of the utility model reside in that: when the press handle cap is pressed down, the first pressure spring is compressed, after the movable contact is contacted with the two short conductive pieces, two wires connected with the two short conductive pieces are electrified, the pressure rod slides downwards, the locking piece is matched with the pressure rod and then rotates, the locking piece is enabled to be staggered and limited by the cam sleeve and the inclined plane guide rail to ascend, the resetting force of the first pressure spring at the top is limited by the locking piece, the press handle cap can not be bounced by the first pressure spring, the problem that the existing press handle cap is bounced by the sealing ring is solved, and the effect that the state is unchanged when the button switch is pressed down is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a front view section of the present invention;
in the figure: 1-a base; 2-a pressure spring A; 3-moving contact piece; 4-pressing a handle; 5-a rotating shaft; 6-positioning pins; 7-locking part; 8-a pressure bar; 9-pressing the handle cap; 10-a sealing ring; 11-a housing; 12-a cam sleeve; 13-pressure spring B; 14-a limiting rod; 15-an insulating block; 16-moving contact; 17-short conductive; 18-a long conductive member; 101-epoxy resin glue line; 102-seven-zero three-silicone rubber layer.
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.
As shown in fig. 1.
The utility model discloses a double knives locking button switch, include: the upper end of the shell 11 is provided with a groove with an upward opening, the middle part to the lower end of the shell 11 is provided with a through hole, and the through hole is communicated with the groove;
the cam sleeve 12 is a hollow body with two communicated ends, and the outer side of the cam sleeve 12 is fixedly connected with the inner wall of the middle part of the shell 11;
the locking piece 7, the pressure lever 8 and the handle cap 9, the hollow notch at the upper end of the pressure lever 8 can be slidably penetrated through the shell 11 and then is in interference sleeve joint with the boss of the handle cap 9, and the lower end of the pressure lever 8 can be slidably penetrated through the shell 11 and the cam sleeve 12 and then corresponds to the matched interval of the locking piece 7; the pressure lever 8 is provided with a guide rail groove corresponding to the cam sleeve 12 and the inclined body guide rail, so that the locking piece 7, the pressure lever 8 and the cam sleeve 12 form an automatic telescopic locking mechanism like a ball pen; the shape structure corresponding to the locking piece 7 is a locking piece of an automatic telescopic locking mechanism of the ball-point pen, the shape structure corresponding to the pressure rod 8 is a pressure rod 8 of the automatic telescopic locking mechanism of the ball-point pen, and the shape structure corresponding to the cam sleeve 12 is a pen shell provided with a guide rail on the automatic telescopic locking mechanism of the ball-point pen;
the press handle 4, the hollow notch at the lower end of the locking piece 7 and the boss gap at the upper end of the press handle 4 are rotatably sleeved;
the movable contact 16 is fixed with the annular movable contact 16 in an annular interference way outside the lower end of the press handle 4;
two ends of the pressure spring A2 are respectively fixedly connected with the pressing handle 4 and the bottom of the shell 11; the upper end of the pressure spring A2 is positioned in the blind groove of the pressing handle 4, and the lower end of the pressure spring A2 is fixedly connected with the bottom of the shell 11;
the two short conductive pieces 17 are fixedly arranged at the lower part of the shell 11 in a penetrating way at intervals, the bottom ends of the two short conductive pieces 17 are positioned at the outer side of the shell 11, and the top ends of the two short conductive pieces 17 correspond to the movable contact 16 at intervals;
the working principle is as follows: when the press handle cap 9 is pressed down, the pressure spring A2 is compressed, when the movable contact 16 is contacted with the two short conductive pieces 17, two wires connected with the two short conductive pieces 17 are electrified, the pressure rod 8 slides downwards, the locking piece 7 is matched with the pressure rod 8 and then rotates, so that the locking piece 7 is staggered and limited by the cam sleeve 12 and the inclined plane guide rail to ascend, the reset force of the upper top of the pressure spring A2 is limited by the locking piece 7, the press handle cap 9 cannot be bounced by the pressure spring A2, the problem that the press handle cap is bounced by a sealing ring at present is solved, and the effect that the state is unchanged when the button switch is pressed down is achieved;
when the handle cap 9 is pressed down again, the locking piece 7 is matched with the pressing rod 8 and then rotates, so that the locking piece 7 is staggered and ascends under the guide of the cam sleeve 12 and the inclined body guide rail, at the moment, the pressing spring A2 provides auxiliary force for upward resetting of the locking piece 7, the pressing rod 8 and the handle cap 9 through the pressing handle 4, and the pressing contact block 16 is separated from the two short conductive pieces 17, so that power failure is realized.
The movable contact 16 is made of silver indium oxide material, so that the functions of arc discharge resistance and arc extinction are realized, and the switch is ensured to be used in a heavy-load circuit. Threads are axially arranged outside the shell 11, and the threads of the shell 11 are milled flat; because the mounting mode is nut fixed, play and prevent the switch rotation, can effectively improve the maneuverability of switch.
The conductive connector further comprises a base 1, wherein the base 1 is an upper concave hollow body, two spaced through holes for the two short conductive pieces 17 to penetrate through are formed in the bottom of the base 1, and the base 1 is an insulating rubber body; the outer side of the base 1 is fixedly arranged with the lower inner wall of the middle part of the shell 11 in an interference fit manner, and the fixed end of the pressure spring A2 and the shell 11 is sleeved with the convex body on the bottom surface of the base 1 in a clearance fit manner; the fixed connection ends of the two short conductive pieces 17 and the shell 11 respectively penetrate through the through hole of the base 1; the disassembly and the assembly of the pressure spring A2 are convenient.
The outer shell 11 and the outer end face of the base 1 are fixedly provided with the epoxy resin glue layer 101; the epoxy resin glue layer 101 performs anti-loosening limiting on the locking piece 7.
The pressing handle 4 is provided with a through hole for mounting the limiting rod 14 from left to right, and the bottom of the pressing handle 4 penetrates through the through hole to the middle part to be provided with a groove for mounting the pressing spring B13; the top end of the pressure spring B13 is arranged in the middle of the pressing handle 4, the bottom end of the pressure spring B is in contact with the middle of a limiting rod 14 penetrating through a through hole of the pressing handle 4, and an insulating block 15 is sleeved at two ends of the limiting rod 14 in an interference fit mode and limits the limiting rod 14 to move left and right in the middle of the pressing handle 4; the spring force of the pressure spring B13 is greater than that of the pressure spring A2; when pressing handle cap 9 and pressing down, pressure spring first 2 is compressed earlier, and pressure spring second 13 of back compression is compressed depression bar 8 while downstream, and after pressure spring second 13 was compressed completely, depression bar 8 just got into the state of contact with locking piece 7, avoided depression bar 8 and locking piece 7 rigid impact contact, improved depression bar 8's operating stability, the double-spring reset structure can self-regulation, guarantees switch contact reliability.
The two long conductive pieces 18 are fixed, and can sequentially and slidably penetrate through the epoxy resin glue layer 101 and the base 1, and the two long conductive pieces 18 and the two short conductive pieces 17 are staggered and crossed; the movable contact piece 3 is welded on the long conductive piece 18; the movable contact piece 3 is elastically deformed by external force, and the elastic potential energy of the movable contact piece 3 is less than that of the pressure spring B13, so that the contact reliability is ensured, and double-knife push-through is realized.
The rotary handle is characterized by further comprising a rotary shaft 5, a notch arranged at the lower end of the rotary shaft 5 is fixedly screwed with a boss section on the upper end of the press handle 4, which is sleeved with the locking piece 7, in a threaded manner, and a convex body arranged at the upper end of the rotary shaft 5 is rotatably sleeved with a hollow notch at the lower end of the locking piece 7; the stability of the rotation of the locking piece 7 is improved by the pressing handle 4 through the rotating shaft 5.
The positioning pin 6 is in a step shape with a small upper part and a big lower part, and the upper end of the positioning pin 6 penetrates into a closed hole at the symmetrical bottom of the center line of the pressure lever 8 from a through hole of a symmetrical hollow step of the center line of the locking part 7; the locking piece 7 realizes that the pressure rod 8 restrains the displacement of the handle cap 9 through the positioning pin 6, and realizes the identification of the locking state.
The outer side surface of the top end of the press handle cap 9 is provided with an annular groove, and a red paint marking layer is arranged in the groove; the switch states are distinguished by means of travel marks, and when the travel marks are exposed to the shell 11 in red, the switch is in an unlocked state; when the stroke mark red is inside the housing 11, the switch is in the locked state.
The inner ring at the upper end of the sealing ring 10 is fixedly, hermetically and adhesively bonded with the outer annular groove of the press handle cap 9 through a seven-zero three-silicon rubber layer 102, and the lower end of the sealing ring 10 is fixedly, hermetically and adhesively bonded with the bottom surface of the groove at the upper end of the shell 11 through the seven-zero three-silicon rubber layer 102; the sealing ring 10 prevents conductive fluid from entering parts below the pressure rod 8, and ensures the insulation safety below the parts below the pressure rod 8.
When the press handle cap 9 is pressed by a pressing force F, the press handle cap 9 pushes the pressing rod 8, the locking piece 7 and the press handle 4, meanwhile, the pressing spring A2 is moved downwards to elastically deform, the movable contact 16 is contacted with the short conductive piece 17, the pressing effect of the switch is realized, the press handle cap 9 is continuously pressed downwards, the pressing spring B13 is compressed, when the press handle cap is displaced to a certain position, the locking piece 7 is separated from the inclined plane guide rail on the cam sleeve 12, the pressing rod 8 is meshed with the locking piece 7, and the locking piece 7 axially rotates; after the pressing force F is removed, the pressing handle 4 automatically resets under the action of the resetting pressure spring A2, so that the locking piece 7 is staggered and limited by the cam sleeve 12 and the inclined body guide rail to ascend, the resetting force of the upward top of the pressure spring A2 is limited by the locking piece 7, and the pressing handle cap 9 cannot be bounced by the pressure spring A2, thereby solving the problem that the existing pressing handle cap is bounced by a sealing ring and achieving the effect that the state is not changed when the button switch is pressed;
when the handle cap 9 is pressed down again, the locking piece 7 is matched with the pressing rod 8 and then rotates, so that the locking piece 7 is staggered and ascends under the guide of the cam sleeve 12 and the inclined body guide rail, at the moment, the pressing spring A2 provides auxiliary force for upward resetting of the locking piece 7, the pressing rod 8 and the handle cap 9 through the pressing handle 4, and the pressing contact block 16 is separated from the two short conductive pieces 17, so that power failure is realized. Meanwhile, the locking piece 7 returns to the cam sleeve 12 in the resetting process, and the switch returns to the initial state, thereby completing one action cycle.
The movable contact 16 and the short conductive piece 17 are electric conductors, the press handle cap 9 is an elastic rubber body, and the rest are non-electric conductors.
Claims (10)
1. A double pole locking push button switch comprising: a housing (11);
the outer side of the cam sleeve (12) is fixedly connected with the inner wall of the middle part of the shell (11);
the locking piece (7), the pressure lever (8) and the press handle cap (9), the upper end of the pressure lever (8) can penetrate through the shell (11) in a sliding manner and then is sleeved with the press handle cap (9), and the lower end of the pressure lever (8) can penetrate through the shell (11) and the cam sleeve (12) in a sliding manner and then corresponds to the locking piece (7); the pressure lever (8) is provided with a guide rail groove corresponding to the cam sleeve (12) and the inclined body guide rail, so that the locking piece (7), the pressure lever (8) and the cam sleeve (12) form an automatic telescopic locking mechanism;
the lower end of the locking piece (7) is rotatably sleeved with the upper end of the pressing handle (4);
a movable contact (16), the lower end of the press handle (4) is fixed with the movable contact (16);
two ends of the pressure spring A (2) are respectively fixedly connected with the pressing handle (4) and the bottom of the shell (11);
two short conductive pieces (17), the two short conductive pieces (17) are fixedly arranged at the lower part of the shell (11) in a penetrating way at intervals, and the tops of the two short conductive pieces (17) correspond to the movable contact (16) at intervals.
2. The double pole locking push button switch of claim 1, wherein: the movable contact (16) is made of silver indium oxide material; the outer portion of the shell (11) is axially provided with threads, and the threads of the shell (11) are milled flat.
3. The double pole locking push button switch of claim 1, wherein: also comprises a base (1); the base (1) and the middle part of the shell (11) are fixedly arranged, and the pressure spring A (2) is in clearance sleeve joint with a convex body on the bottom surface of the base (1); the fixed connecting ends of the two short conductive pieces (17) and the shell (11) respectively penetrate through the base (1).
4. The double pole locking push button switch of claim 3, wherein: the LED lamp base is characterized by further comprising an epoxy resin adhesive layer (101), wherein the epoxy resin adhesive layer (101) is fixedly arranged on the outer end faces of the shell (11) and the base (1).
5. The double pole locking push button switch of claim 4, wherein: the pressing handle is characterized by further comprising a pressure spring B (13), a limiting rod (14) and an insulating block (15), wherein the top end of the pressure spring B (13) is installed in the middle of the pressing handle (4), the bottom end of the pressure spring B (13) is in contact with the middle of the limiting rod (14) penetrating through a through hole of the pressing handle (4), and the insulating block (15) is sleeved at two ends of the limiting rod (14) and limits the limiting rod (14) to move left and right in the middle of the pressing handle (4); the spring force of the pressure spring B (13) is greater than that of the pressure spring A (2).
6. The double pole locking push button switch of claim 5, wherein: the movable contact device also comprises two movable contact pieces (3) and two long conductive pieces (18), the two long conductive pieces (18) are fixed and can sequentially penetrate through the epoxy resin adhesive layer (101) and the base (1) in a sliding manner, and the two long conductive pieces (18) and the two short conductive pieces (17) are crossed in a staggered manner; the movable contact piece (3) is welded on the long conductive piece (18).
7. The double pole locking push button switch of claim 1, wherein: the lower end of the rotating shaft (5) is fixedly sleeved with the pressing handle (4), and the upper end of the rotating shaft (5) is rotatably sleeved with the lower end of the locking piece (7).
8. The double pole locking push button switch of claim 1, wherein: still include locating pin (6), locating pin (6) upper end is run through to depression bar (8) bottom from lock stopping piece (7).
9. The double pole locking push button switch of claim 1, wherein: the outer side surface of the top end of the press handle cap (9) is provided with an annular groove, and a red paint marking layer is arranged in the groove.
10. The double pole locking push button switch of claim 1, wherein: the upper end of the sealing ring (10) is fixedly, hermetically and adhesively connected with the press handle cap (9), and the lower end of the sealing ring (10) is fixedly, hermetically and adhesively connected with the upper end of the shell (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020838820.9U CN212084880U (en) | 2020-05-19 | 2020-05-19 | Double-pole locking button switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020838820.9U CN212084880U (en) | 2020-05-19 | 2020-05-19 | Double-pole locking button switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212084880U true CN212084880U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020838820.9U Active CN212084880U (en) | 2020-05-19 | 2020-05-19 | Double-pole locking button switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212084880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643868A (en) * | 2021-08-12 | 2021-11-12 | 贵州振华华联电子有限公司 | Potentiometer with lamp, press and lock |
| CN114141552A (en) * | 2021-10-26 | 2022-03-04 | 武汉高德红外股份有限公司 | Low-cost microminiature light repeated mechanical latching switch |
-
2020
- 2020-05-19 CN CN202020838820.9U patent/CN212084880U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113643868A (en) * | 2021-08-12 | 2021-11-12 | 贵州振华华联电子有限公司 | Potentiometer with lamp, press and lock |
| CN114141552A (en) * | 2021-10-26 | 2022-03-04 | 武汉高德红外股份有限公司 | Low-cost microminiature light repeated mechanical latching switch |
| CN114141552B (en) * | 2021-10-26 | 2024-03-19 | 武汉高德红外股份有限公司 | Miniature light repeated mechanical locking switch |
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